From fdbd78cdd19f43c46419a3c2c7319357a9b4b6c9 Mon Sep 17 00:00:00 2001 From: Sandu Liviu Catalin Date: Sun, 27 Mar 2016 06:05:43 +0300 Subject: [PATCH] Added the TCC compiler to the external folder and the associated projects. --- cbp/LibTCC.cbp | 101 + cbp/TCC.cbp | 178 + external/TCC/COPYING | 504 ++ external/TCC/Changelog | 520 ++ external/TCC/README | 104 + external/TCC/RELICENSING | 59 + external/TCC/TODO | 110 + external/TCC/VERSION | 1 + external/TCC/c67-gen.c | 2549 +++++++++ external/TCC/coff.h | 446 ++ external/TCC/config.h | 7 + external/TCC/elf.h | 3233 +++++++++++ external/TCC/i386-asm.c | 1502 +++++ external/TCC/i386-asm.h | 500 ++ external/TCC/i386-gen.c | 1134 ++++ external/TCC/i386-tok.h | 244 + external/TCC/il-gen.c | 655 +++ external/TCC/il-opcodes.h | 251 + external/TCC/lib/alloca-arm.S | 11 + external/TCC/lib/alloca86-bt.S | 47 + external/TCC/lib/alloca86.S | 35 + external/TCC/lib/alloca86_64-bt.S | 60 + external/TCC/lib/alloca86_64.S | 42 + external/TCC/lib/armeabi.c | 489 ++ external/TCC/lib/bcheck.c | 950 ++++ external/TCC/lib/lib-arm64.c | 652 +++ external/TCC/lib/libtcc1.c | 753 +++ external/TCC/lib/testfp.c | 510 ++ external/TCC/libtcc.c | 2327 ++++++++ external/TCC/libtcc.h | 104 + external/TCC/stab.def | 234 + external/TCC/stab.h | 17 + external/TCC/tcc.c | 367 ++ external/TCC/tcc.h | 1540 ++++++ external/TCC/tccasm.c | 1138 ++++ external/TCC/tcccoff.c | 948 ++++ external/TCC/tccelf.c | 3512 ++++++++++++ external/TCC/tccgen.c | 6454 ++++++++++++++++++++++ external/TCC/tcclib.h | 80 + external/TCC/tccpe.c | 1890 +++++++ external/TCC/tccpp.c | 3460 ++++++++++++ external/TCC/tccrun.c | 772 +++ external/TCC/tcctok.h | 341 ++ external/TCC/win32/tools/tiny_impdef.c | 249 + external/TCC/win32/tools/tiny_libmaker.c | 258 + external/TCC/x86_64-asm.h | 475 ++ external/TCC/x86_64-gen.c | 2251 ++++++++ 47 files changed, 42064 insertions(+) create mode 100644 cbp/LibTCC.cbp create mode 100644 cbp/TCC.cbp create mode 100644 external/TCC/COPYING create mode 100644 external/TCC/Changelog create mode 100644 external/TCC/README create mode 100644 external/TCC/RELICENSING create mode 100644 external/TCC/TODO create mode 100644 external/TCC/VERSION create mode 100644 external/TCC/c67-gen.c create mode 100644 external/TCC/coff.h create mode 100644 external/TCC/config.h create mode 100644 external/TCC/elf.h create mode 100644 external/TCC/i386-asm.c create mode 100644 external/TCC/i386-asm.h create mode 100644 external/TCC/i386-gen.c create mode 100644 external/TCC/i386-tok.h create mode 100644 external/TCC/il-gen.c create mode 100644 external/TCC/il-opcodes.h create mode 100644 external/TCC/lib/alloca-arm.S create mode 100644 external/TCC/lib/alloca86-bt.S create mode 100644 external/TCC/lib/alloca86.S create mode 100644 external/TCC/lib/alloca86_64-bt.S create mode 100644 external/TCC/lib/alloca86_64.S create mode 100644 external/TCC/lib/armeabi.c create mode 100644 external/TCC/lib/bcheck.c create mode 100644 external/TCC/lib/lib-arm64.c create mode 100644 external/TCC/lib/libtcc1.c create mode 100644 external/TCC/lib/testfp.c create mode 100644 external/TCC/libtcc.c create mode 100644 external/TCC/libtcc.h create mode 100644 external/TCC/stab.def create mode 100644 external/TCC/stab.h create mode 100644 external/TCC/tcc.c create mode 100644 external/TCC/tcc.h create mode 100644 external/TCC/tccasm.c create mode 100644 external/TCC/tcccoff.c create mode 100644 external/TCC/tccelf.c create mode 100644 external/TCC/tccgen.c create mode 100644 external/TCC/tcclib.h create mode 100644 external/TCC/tccpe.c create mode 100644 external/TCC/tccpp.c create mode 100644 external/TCC/tccrun.c create mode 100644 external/TCC/tcctok.h create mode 100644 external/TCC/win32/tools/tiny_impdef.c create mode 100644 external/TCC/win32/tools/tiny_libmaker.c create mode 100644 external/TCC/x86_64-asm.h create mode 100644 external/TCC/x86_64-gen.c diff --git a/cbp/LibTCC.cbp b/cbp/LibTCC.cbp new file mode 100644 index 00000000..af024a55 --- /dev/null +++ b/cbp/LibTCC.cbp @@ -0,0 +1,101 @@ + + + + + + diff --git a/cbp/TCC.cbp b/cbp/TCC.cbp new file mode 100644 index 00000000..dc2eaa44 --- /dev/null +++ b/cbp/TCC.cbp @@ -0,0 +1,178 @@ + + + + + + diff --git a/external/TCC/COPYING b/external/TCC/COPYING new file mode 100644 index 00000000..223ede7d --- /dev/null +++ b/external/TCC/COPYING @@ -0,0 +1,504 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +Also add information on how to contact you by electronic and paper mail. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the library, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James Random Hacker. + + , 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! + + diff --git a/external/TCC/Changelog b/external/TCC/Changelog new file mode 100644 index 00000000..7cc19c86 --- /dev/null +++ b/external/TCC/Changelog @@ -0,0 +1,520 @@ +Version 0.9.27: + +Licensing: + +- TinyCC partly relicensed to MIT license + +User interface: + +- define __STDC_HOSTED__ (Michael Matz, Urs Janssen) +- added support for CPATH, C_INCLUDE_PATH and LD_LIBRARY_PATH (Andrew Aladjev +and Urs Janssen) +- added option -norunsrc to control argv[0] with tcc -run (James Lyon) +- improve --with-libgcc configure help (grischka) +- improve error message when memory is full (grischka) +- improve wording about compiler switches in documentation (Thomas Preud'homme) +- use GNU triplet prefix for cross compiler names (Thomas Preud'homme) +- ignore unknown linker optimization and as-needed option (Austin English) + +Features: + +- added ABI tests with native compiler using libtcc (James Lyon) +- added CMake build system with support for cross-compilation (James Lyon) +- improved variable length array support (James Lyon) +- add the possibility to use noname functions by ordinal (YX Hao) +- add a install-strip target to install tcc (Thomas Preud'homme) +- add runtime selection of float ABI on ARM (Thomas Preud'homme) +- add shared lib support on x86-64 (Michael Matz) + +Platforms: +- support Debian GNU/kfreeBSD 64bit userspace (Thomas Preud'homme) +- fix GNU/Hurd interpreter path (Thomas Preud'homme) +- fix configure script for FreeBSD host (Thomas Preud'homme) +- make tcc -run work reliably on ARM by flushing caches (Thomas Preud'homme) +- many x86-64 ABI fixes incl. XMM register passing (James Lyon) +- improve compatibility with mingw's long double (James Lyon) +- avoid .stabstr section name to be truncated on win32 (Roy) +- add support for load/store of _Bool value (Thomas Preud'homme) +- detect instruction with incorrect operands on x86-64 (Thomas Preud'homme) +- improved relocations on ARM (Thomas Preud'homme) +- add va_* macro implementation for ARM (Thomas Preud'homme) +- define __ARM_EABI__, __ARMEL__ and __ARM_PCS_VFP (Thomas Preud'homme) +- provide a runtime library for ARM (Thomas Preud'homme) +- vastly improved support for ARM hard float calling convention +(Thomas Preud'homme, Daniel Glöckner) +- tcc can uses libtcc1 on ARM (Thomas Preud'homme) +- use __fixdfdi for all float to integer conversion (grischka) +- simplify startup code for unix platforms (grischka) +- improve ELF generated on ARM (Thomas Preud'homme) +- add support for thumb to ARM relocation (Thomas Preud'homme) +- fix globbing to match MSVC on Windows (Thomas Preud'homme) +- deprecate FPA and OABI support for ARM (Thomas Preud'homme) +- warn about softfloat not being supported on ARM (Thomas Preud'homme) + +Bug fixes: +- many code clean up (Urs Janssen, grischka) +- fixes of other's patches (grischka, Ramsay Jones, Michael Matz) +- fix documentation about __TINYC__ (Urs Janssen) +- improve build of documentation (Urs Janssen) +- improve build instructions (Jov) +- switch from texi2html to makeinfo --html to build tcc-doc.html (James Lyon) +- improve out of tree build (James Lyon) +- improved passing and returning of struct (James Lyon) +- fix CMake build on i386 and x86-64 (James Lyon) +- fix i386 calling convention issue (James Lyon) +- fix error in Windows build of tests (James Lyon) +- fix x86-64 long double passing (James Lyon) +- fix crash with undefined struct (grischka) +- normalize slashes on win32 to always use backslashes (grischka) +- use runtime function for float to int conversion on i386 (grischka) +- improved documentation for include and lib lookup on win32 (grischka) +- detect redefinition of function (Thomas Preud'homme) +- detect the use of array of functions (Thomas Preud'homme) +- detect use of enumerator with wrong enumeration (Thomas Preud'homme) +- detect redefinition of enumerator or enumeration (Thomas Preud'homme) +- set the user-defined library search paths first (Vittorio Giovara) +- detect usage of incomplete types inside struct/union (Amine Najahi) +- various macro bug fixes (Joseph Poirier) +- avoid wrong trigger of assert on x86-64 platform (Thomas Preud'homme) +- fix NaN comparison (Thomas Preud'homme) +- use libtcc for static linking with runtime library (Thomas Preud'homme) +- fix negation of 0.0 and -0.0 values (Thomas Preud'homme) +- fix use of long long as if condition (Thomas Preud'homme) +- disable bound check if libgcc is used (Thomas Preud'homme) +- error out when casting to void (grischka) +- remove circular dependency in Makefile (grischka) +- stop preventing gcc to do strict aliasing (grischka) +- fix Windows build of tcc (grischka) +- build runtime library for arm cross compiler (Thomas Preud'homme) +- fix installation of arm cross-compiler (Thomas Preud'homme) +- add basic test for cross-compiler (Thomas Preud'homme) +- fix failure when generating PE on x86-64 (Archidemon) +- fix floating point unary minus and plus (Michael Matz) +- add more tests for signed zero float (Michael Matz) +- fix precision of double on x86-64 (Vincent Lefevre) +- fix bound checking of argv with -run switch (Kirill Smelkov) +- work around a wine cmd bug when building tcc on Windows (Austin English) +- reenable some bound check tests (grischka) +- boundtest.c lookup honors VPATH (grischka) +- diff compared to CC in test[123]b? are now errors (grischka) +- fix test3 on Windows (grischka) +- prevent gcc from building (non functional) libtcc.a (grischka) +- fix warning related to PE file generation on x86-64 (grischka) +- stop mixing ordinary and implicit rule in Makefile (Iavael) +- fix integer to double conversion on ARM (Thomas Preud'homme) +- fix parameter passing of structure < 4 bytes on ARM (Thomas Preud'homme) +- disable builtin_frame_address test on ARM due to gcc bug (Thomas Preud'homme) +- fix initialization of struct on ARM (Thomas Preud'homme) +- fix parameter passing of (unsigned) long long bitfield (Thomas Preud'homme) +- improve float to integer tests (Thomas Preud'homme) +- fix relocation of Thumb branch to ARM function (Thomas Preud'homme) +- fix char wrong compatibility with [un]signed char (Thomas Preud'homme) +- choose the code to compile based on target in libtcc1 (Thomas Preud'homme) +- fix various clang warnings (Thomas Preud'homme) +- don't hardcode tcc in Makefile for tests (Thomas Preud'homme) +- fix relocation of __bound_init bound checking code (Thomas Preud'homme) +- accept only one basic type for a given variable (Thomas Preud'homme) +- fix error when using va_* with tcc using libgcc (Thomas Preud'homme) +- support GOT32 and PLT32 reloc on the same symbol (Thomas Preud'homme) +- fix memory leak due to symbol attributes (mingodad) +- partially fix bound checking of argv and arge (Thomas Preud'homme) +- fix possible dereference when getting name of symbol (grischka) +- fix va_list type definition on x86-64 (Daniel Glöckner) +- reduce number of scan-build false positive (mingodad) + +version 0.9.26: + +User interface: +- -MD/-MF (automatically generate dependencies for make) +- -pthread option (same as -D_REENTRANT -lpthread) (Henry Kroll III) +- -m32/-m64 to re-exec cross compiler (Henry Kroll III) +- -Wl, Mimic all GNU -option forms supported by ld (Kirill Smelkov) +- new LIBTCCAPI tcc_set_options() (grischka) + +Platforms: +- Many improvements for x86-64 target (Shinichiro Hamaji, Michael Matz, grischka) +- x86-64 assembler (Frederic Feret) +- Many improvements for ARM target (Daniel Glöckner, Thomas Preud'homme) +- Support WinCE PE ARM (Timo VJ Lahde) +- Support ARM hardfloat calling convention (Thomas Preud'homme) +- Support SELinux (Security-Enhanced Linux) (Henry Kroll III) +- Support Debian GNU/kFreeBSD kernels (Pierre Chifflier) +- Support GNU/Hurd kernels (Thomas Preud'homme) +- Support OSX (tcc -run only) (Milutin Jovanovic) +- Support multiarch configuration (Thomas Preud'homme) +- Support out-of-tree build (Akim Demaille) + +Features: +- C99 variable length arrays (Thomas Preud'homme & Joe Soroka) +- Asm labels for variables and functions (Thomas Preud'homme) +- STT_GNU_IFUNC (Indirect functions as externals) (Thomas Preud'homme) +- More tests (tests2) (Milutin Jovanovic) + +version 0.9.25: + +- first support for x86-64 target (Shinichiro Hamaji) +- support µClibc +- split tcc.c into tcc.h libtcc.c tccpp.c tccgen.c tcc.c +- improved preprocess output with linenumbers and spaces preserved +- tcc_relocate now copies code into user buffer +- fix bitfields with non-int types and in unions +- improve ARM cross-compiling (Daniel Glöckner) +- link stabstr sections from multiple objects +- better (still limited) support for multiple TCCStates + +version 0.9.24: + +- added verbosity levels -v, -vv, -vvv +- Accept standard input as an inputstream (Hanzac Chen) +- Support c89 compilers other than gcc (Hanzac Chen) +- -soname linker option (Marc Andre Tanner) +- Just warn about unknown directives, ignore quotes in #error/#warning +- Define __STDC_VERSION__=199901L (477) +- Switch to newer tccpe.c (includes support for resources) +- Handle backslashes within #include/#error/#warning +- Import changesets (part 4) 428,457,460,467: defines for openbsd etc. +- Use _WIN32 for a windows hosted tcc and define it for the PE target, + otherwise define __unix / __linux (Detlef Riekenberg) +- Import changesets (part 3) 409,410: ARM EABI by Daniel Glöckner +- Some in-between fixes: + TCC -E no longer hangs with macro calls involving newlines. + (next_nomacro1 now advances the read-pointer with TOK_LINEFEED) + Global cast (int g_i = 1LL;) no longer crashes tcc. + (nocode_wanted is initially 1, and only 0 for gen_function) + On win32 now tcc.exe finds 'include' & 'lib' even if itself is in 'bin'. + (new function w32_tcc_lib_path removes 'bin' if detected) + Added quick build batch file for mingw (win32/build-tcc.bat) + Last added case label optimization (455) produced wrong code. Reverted. + +- Import more changesets from Rob Landley's fork (part 2): + 487: Handle long long constants in gen_opic() (Rob Landley) + 484: Handle parentheses within __attribute__((...)) (Rob Landley) + 480: Remove a goto in decl_initializer_alloc (Rob Landley) + 475: Fix dereferences in inline assembly output (Joshua Phillips) + 474: Cast ptrs to ints of different sizes correctly (Joshua Phillips) + 473: Fix size of structs with empty array member (Joshua Phillips) + 470: No warning for && and || with mixed pointers/integers (Rob Landley) + 469: Fix symbol visibility problems in the linker (Vincent Pit) + 468: Allow && and || involving pointer arguments (Rob Landley) + 455: Optimize case labels with no code in between (Zdenek Pavlas) + 450: Implement alloca for x86 (grischka) + 415: Parse unicode escape sequences (Axel Liljencrantz) + 407: Add a simple va_copy() in stdarg.h (Hasso Tepper) + 400: Allow typedef names as symbols (Dave Dodge) + +- Import some changesets from Rob Landley's fork (part 1): + 462: Use LGPL with bcheck.c and il-gen.c + 458: Fix global compound literals (in unary: case '&':) (Andrew Johnson) + 456: Use return code from tcc_output_file in main() (Michael Somos) + 442: Fix indirections with function pointers (***fn)() (grischka) + 441: Fix LL left shift in libtcc1.c:__shldi3 (grischka) + 440: Pass structures and function ptrs through ?: (grischka) + 439: Keep rvalue in bit assignment (bit2 = bit1 = x) (grischka) + 438: Degrade nonportable pointer assignment to warning (grischka) + 437: Call 'saveregs()' before jumping with logical and/or/not (grischka) + 435: Put local static variables into global memory (grischka) + 432/434: Cast double and ptr to bool (grischka) + 420: Zero pad x87 tenbyte long doubles (Felix Nawothnig) + 417: Make 'sizeof' unsigned (Rob Landley) + 397: Fix save_reg for longlongs (Daniel Glöckner) + 396: Fix "invalid relocation entry" problem on ubuntu - (Bernhard Fischer) + +- ignore AS_NEEDED ld command +- mark executable sections as executable when running in memory +- added support for win32 wchar_t (Filip Navara) +- segment override prefix support (Filip Navara) +- normalized slashes in paths (Filip Navara) +- windows style fastcall (Filip Navara) +- support for empty input register section in asm (Filip Navara) +- anonymous union/struct support (Filip Navara) +- fixed parsing of function parameters +- workaround for function pointers in conditional expressions (Dave Dodge) +- initial '-E' option support to use the C preprocessor alone +- discard type qualifiers when comparing function parameters (Dave Dodge) +- Bug fix: A long long value used as a test expression ignores the + upper 32 bits at runtime (Dave Dodge) +- fixed multiple concatenation of PPNUM tokens (initial patch by Dave Dodge) +- fixed multiple typedef specifiers handling +- fixed sign extension in some type conversions (Dave Dodge) + +version 0.9.23: + +- initial PE executable format for windows version (grischka) +- '#pragma pack' support (grischka) +- '#include_next' support (Bernhard Fischer) +- ignore '-pipe' option +- added -f[no-]leading-underscore +- preprocessor function macro parsing fix (grischka) + +version 0.9.22: + +- simple memory optimisations: kernel compilation is 30% faster +- linker symbol definitions fixes +- gcc 3.4 fixes +- fixed value stack full error +- 'packed' attribute support for variables and structure fields +- ignore 'const' and 'volatile' in function prototypes +- allow '_Bool' in bit fields + +version 0.9.21: + +- ARM target support (Daniel Glöckner) +- added '-funsigned-char, '-fsigned-char' and + '-Wimplicit-function-declaration' +- fixed assignment of const struct in struct +- line comment fix (reported by Bertram Felgenhauer) +- initial TMS320C67xx target support (TK) +- win32 configure +- regparm() attribute +- many built-in assembler fixes +- added '.org', '.fill' and '.previous' assembler directives +- '-fno-common' option +- '-Ttext' linker option +- section alignment fixes +- bit fields fixes +- do not generate code for unused inline functions +- '-oformat' linker option. +- added 'binary' output format. + +version 0.9.20: + +- added '-w' option +- added '.gnu.linkonce' ELF sections support +- fixed libc linking when running in memory (avoid 'stat' function + errors). +- extended '-run' option to be able to give several arguments to a C + script. + +version 0.9.19: + +- "alacarte" linking (Dave Long) +- simpler function call +- more strict type checks +- added 'const' and 'volatile' support and associated warnings +- added -Werror, -Wunsupported, -Wwrite-strings, -Wall. +- added __builtin_types_compatible_p() and __builtin_constant_p() +- chars support in assembler (Dave Long) +- .string, .globl, .section, .text, .data and .bss asm directive + support (Dave Long) +- man page generated from tcc-doc.texi +- fixed macro argument substitution +- fixed zero argument macro parsing +- changed license to LGPL +- added -rdynamic option support + +version 0.9.18: + +- header fix (time.h) +- fixed inline asm without operand case +- fixed 'default:' or 'case x:' with '}' after (incorrect C construct accepted + by gcc) +- added 'A' inline asm constraint. + +version 0.9.17: + +- PLT generation fix +- tcc doc fixes (Peter Lund) +- struct parse fix (signaled by Pedro A. Aranda Gutierrez) +- better _Bool lvalue support (signaled by Alex Measday) +- function parameters must be converted to pointers (signaled by Neil Brown) +- sanitized string and character constant parsing +- fixed comment parse (signaled by Damian M Gryski) +- fixed macro function bug (signaled by Philippe Ribet) +- added configure (initial patch by Mitchell N Charity) +- added '-run' and '-v' options (initial patch by vlindos) +- added real date report in __DATE__ and __TIME__ macros + +version 0.9.16: + +- added assembler language support +- added GCC inline asm() support +- fixed multiple variable definitions : uninitialized variables are + created as COMMON symbols. +- optimized macro processing +- added GCC statement expressions support +- added GCC local labels support +- fixed array declaration in old style function parameters +- support casts in static structure initializations +- added various __xxx[__] keywords for GCC compatibility +- ignore __extension__ GCC in an expression or in a type (still not perfect) +- added '? :' GCC extension support + +version 0.9.15: + +- compilation fixes for glibc 2.2, gcc 2.95.3 and gcc 3.2. +- FreeBSD compile fixes. Makefile patches still missing (Carl Drougge). +- fixed file type guessing if '.' is in the path. +- fixed tcc_compile_string() +- add a dummy page in ELF files to fix RX/RW accesses (pageexec at + freemail dot hu). + +version 0.9.14: + +- added #warning. error message if invalid preprocessing directive. +- added CType structure to ease typing (faster parse). +- suppressed secondary hash tables (faster parse). +- rewrote parser by optimizing common cases (faster parse). +- fixed signed long long comparisons. +- fixed 'int a(), b();' declaration case. +- fixed structure init without '{}'. +- correct alignment support in structures. +- empty structures support. +- gcc testsuite now supported. +- output only warning if implicit integer/pointer conversions. +- added static bitfield init. + +version 0.9.13: + +- correct preprocessing token pasting (## operator) in all cases (added + preprocessing number token). +- fixed long long register spill. +- fixed signed long long '>>'. +- removed memory leaks. +- better error handling : processing can continue on link errors. A + custom callback can be added to display error messages. Most + errors do not call exit() now. +- ignore -O, -W, -m and -f options +- added old style function declarations +- added GCC __alignof__ support. +- added GCC typeof support. +- added GCC computed gotos support. +- added stack backtrace in runtime error message. Improved runtime + error position display. + +version 0.9.12: + +- more fixes for || and && handling. +- improved '? :' type handling. +- fixed bound checking generation with structures +- force '#endif' to be in same file as matching '#if' +- #include file optimization with '#ifndef #endif' construct detection +- macro handling optimization +- added tcc_relocate() and tcc_get_symbol() in libtcc. + +version 0.9.11: + +- stdarg.h fix for double type (thanks to Philippe Ribet). +- correct white space characters and added MSDOS newline support. +- fixed invalid implicit function call type declaration. +- special macros such as __LINE__ are defined if tested with defined(). +- fixed '!' operator with relocated address. +- added symbol + offset relocation (fixes some static variable initializers) +- '-l' option can be specified anywhere. '-c' option yields default + output name. added '-r' option for relocatable output. +- fixed '\nnn' octal parsing. +- fixed local extern variables declarations. + +version 0.9.10: + +- fixed lvalue type when saved in local stack. +- fixed '#include' syntax when using macros. +- fixed '#line' bug. +- removed size limit on strings. Unified string constants handling + with variable declarations. +- added correct support for '\xX' in wchar_t strings. +- added support for bound checking in generated executables +- fixed -I include order. +- fixed incorrect function displayed in runtime error. + +version 0.9.9: + +- fixed preprocessor expression parsing for #if/#elif. +- relocated debug info (.stab section). +- relocated bounds info (.bounds section). +- fixed cast to char of char constants ('\377' is -1 instead of 255) +- fixed implicit cast for unary plus. +- strings and '__func__' have now 'char[]' type instead of 'char *' + (fixes sizeof() return value). +- added __start_xxx and __stop_xxx symbols in linker. +- better DLL creation support (option -shared begins to work). +- ELF sections and hash tables are resized dynamically. +- executables and DLLs are stripped by default. + +version 0.9.8: + +- First version of full ELF linking support (generate objects, static + executable, dynamic executable, dynamic libraries). Dynamic library + support is not finished (need PIC support in compiler and some + patches in symbol exporting). +- First version of ELF loader for object (.o) and archive (.a) files. +- Support of simple GNU ld scripts (GROUP and FILE commands) +- Separated runtime library and bound check code from TCC (smaller + compiler core). +- fixed register reload in float compare. +- fixed implicit char/short to int casting. +- allow array type for address of ('&') operator. +- fixed unused || or && result. +- added GCC style variadic macro support. +- optimized bound checking code for array access. +- tcc includes are now in $(prefix)/lib/tcc/include. +- more command line options - more consistent handling of multiple + input files. +- added tcc man page (thanks to Cyril Bouthors). +- uClibc Makefile update +- converted documentation to texinfo format. +- added developper's guide in documentation. + +version 0.9.7: + +- added library API for easy dynamic compilation (see libtcc.h - first + draft). +- fixed long long register spill bug. +- fixed '? :' register spill bug. + +version 0.9.6: + +- added floating point constant propagation (fixes negative floating + point constants bug). + +version 0.9.5: + + - uClibc patches (submitted by Alfonso Martone). + - error reporting fix + - added CONFIG_TCC_BCHECK to get smaller code if needed. + +version 0.9.4: + + - windows port (currently cannot use -g, -b and dll functions). + - faster and simpler I/O handling. + - '-D' option works in all cases. + - preprocessor fixes (#elif and empty macro args) + - floating point fixes + - first code for CIL generation (does not work yet) + +version 0.9.3: + + - better and smaller code generator. + - full ISOC99 64 bit 'long long' support. + - full 32 bit 'float', 64 bit 'double' and 96 bit 'long double' support. + - added '-U' option. + - added assembly sections support. + - even faster startup time by mmaping sections instead of mallocing them. + - added GNUC __attribute__ keyword support (currently supports + 'section' and 'aligned' attributes). + - added ELF file output (only usable for debugging now) + - added debug symbol generation (STAB format). + - added integrated runtime error analysis ('-g' option: print clear + run time error messages instead of "Segmentation fault"). + - added first version of tiny memory and bound checker ('-b' option). + +version 0.9.2: + + - even faster parsing. + - various syntax parsing fixes. + - fixed external relocation handling for variables or functions pointers. + - better function pointers type handling. + - can compile multiple files (-i option). + - ANSI C bit fields are supported. + - beginning of float/double/long double support. + - beginning of long long support. + +version 0.9.1: + + - full ISOC99 initializers handling. + - compound literals. + - structures handle in assignments and as function param or return value. + - wide chars and strings. + - macro bug fix + +version 0.9: + - initial version. diff --git a/external/TCC/README b/external/TCC/README new file mode 100644 index 00000000..0b789b2d --- /dev/null +++ b/external/TCC/README @@ -0,0 +1,104 @@ +Tiny C Compiler - C Scripting Everywhere - The Smallest ANSI C compiler +----------------------------------------------------------------------- + +Features: +-------- + +- SMALL! You can compile and execute C code everywhere, for example on + rescue disks. + +- FAST! tcc generates optimized x86 code. No byte code + overhead. Compile, assemble and link about 7 times faster than 'gcc + -O0'. + +- UNLIMITED! Any C dynamic library can be used directly. TCC is + heading torward full ISOC99 compliance. TCC can of course compile + itself. + +- SAFE! tcc includes an optional memory and bound checker. Bound + checked code can be mixed freely with standard code. + +- Compile and execute C source directly. No linking or assembly + necessary. Full C preprocessor included. + +- C script supported : just add '#!/usr/local/bin/tcc -run' at the first + line of your C source, and execute it directly from the command + line. + +Documentation: +------------- + +1) Installation on a i386/x86_64/arm Linux/OSX/FreeBSD host (for Windows read tcc-win32.txt) + +Note: For OSX and FreeBSD, gmake should be used instead of make. + + ./configure + make + make test + make install + +Alternatively, out-of-tree builds are supported: you may use different +directories to hold build objects, kept separate from your source tree: + + mkdir _build + cd _build + ../configure + make + make test + make install + +Texi2html must be installed to compile the doc. +By default, tcc is installed in /usr/local/bin. +./configure --help shows configuration options. + + +2) Introduction + +We assume here that you know ANSI C. Look at the example ex1.c to know +what the programs look like. + +The include file can be used if you want a small basic libc +include support (especially useful for floppy disks). Of course, you +can also use standard headers, although they are slower to compile. + +You can begin your C script with '#!/usr/local/bin/tcc -run' on the first +line and set its execute bits (chmod a+x your_script). Then, you can +launch the C code as a shell or perl script :-) The command line +arguments are put in 'argc' and 'argv' of the main functions, as in +ANSI C. + +3) Examples + +ex1.c: simplest example (hello world). Can also be launched directly +as a script: './ex1.c'. + +ex2.c: more complicated example: find a number with the four +operations given a list of numbers (benchmark). + +ex3.c: compute fibonacci numbers (benchmark). + +ex4.c: more complicated: X11 program. Very complicated test in fact +because standard headers are being used ! As for ex1.c, can also be launched +directly as a script: './ex4.c'. + +ex5.c: 'hello world' with standard glibc headers. + +tcc.c: TCC can of course compile itself. Used to check the code +generator. + +tcctest.c: auto test for TCC which tests many subtle possible bugs. Used +when doing 'make test'. + +4) Full Documentation + +Please read tcc-doc.html to have all the features of TCC. + +Additional information is available for the Windows port in tcc-win32.txt. + +License: +------- + +TCC is distributed under the GNU Lesser General Public License (see +COPYING file). + +Fabrice Bellard. diff --git a/external/TCC/RELICENSING b/external/TCC/RELICENSING new file mode 100644 index 00000000..a067c042 --- /dev/null +++ b/external/TCC/RELICENSING @@ -0,0 +1,59 @@ + + Relicensing TinyCC + ------------------ + + The authors listed below hereby confirm their agreement to relicense TinyCC + including their past contributions under the following terms: + + + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + + + Author (name) I agree (YES/NO) Files/Features (optional) + ------------------------------------------------------------------------------ + Adam Sampson YES makefiles + Daniel Glöckner NO arm-gen.c + Daniel Glöckner YES not arm-gen.c + Edmund Grimley Evans YES arm64 + Fabrice Bellard YES original author + Frédéric Féret YES x86 64/16 bit asm + grischka YES tccpe.c + Henry Kroll YES + Joe Soroka YES + Kirill Smelkov YES + mingodad YES + Pip Cet YES + Shinichiro Hamaji YES x86_64-gen.c + Vincent Lefèvre YES + Thomas Preud'homme YES arm-gen.c + Timo VJ Lähde (Timppa) ? tiny_libmaker.c + TK ? tcccoff.c c67-gen.c + Urs Janssen YES + waddlesplash YES + + + ------------------------------------------------------------------------------ + + Please add yourself to the list above (rsp. replace the question mark) + and (after fetching the latest version) commit to the "mob" branch with + commit message: + + Relicensing TinyCC + + Thanks. diff --git a/external/TCC/TODO b/external/TCC/TODO new file mode 100644 index 00000000..e6e5b070 --- /dev/null +++ b/external/TCC/TODO @@ -0,0 +1,110 @@ +TODO list: + +Bugs: + +- fix macro substitution with nested definitions (ShangHongzhang) +- FPU st(0) is left unclean (kwisatz haderach). Incompatible with + optimized gcc/msc code + +- constructors +- cast bug (Peter Wang) +- define incomplete type if defined several times (Peter Wang). +- test binutils/gcc compile +- tci patch + argument. +- see -lxxx bug (Michael Charity). +- see transparent union pb in /urs/include/sys/socket.h +- precise behaviour of typeof with arrays ? (__put_user macro) + but should suffice for most cases) +- handle '? x, y : z' in unsized variable initialization (',' is + considered incorrectly as separator in preparser) +- transform functions to function pointers in function parameters + (net/ipv4/ip_output.c) +- fix function pointer type display +- check lcc test suite -> fix bitfield binary operations +- check section alignment in C +- fix invalid cast in comparison 'if (v == (int8_t)v)' +- finish varargs.h support (gcc 3.2 testsuite issue) +- fix static functions declared inside block +- fix multiple unions init +- sizeof, alignof, typeof can still generate code in some cases. +- Fix the remaining libtcc memory leaks. +- make libtcc fully reentrant (except for the compilation stage itself). +- struct/union/enum definitions in nested scopes (see also Debian bug #770657) +- __STDC_IEC_559__: float f(void) { static float x = 0.0 / 0.0; return x; } + +Portability: + +- it is assumed that int is 32-bit and sizeof(int) == 4 +- int is used when host or target size_t would make more sense +- TCC handles target floating-point (fp) values using the host's fp + arithmetic, which is simple and fast but may lead to exceptions + and inaccuracy and wrong representations when cross-compiling + +Linking: + +- static linking does not work +- with "-run" and libtcc, no PLT is used, so branches may be out of + range and relocations may fail; as a result libtest fails on arm64; see: + https://lists.gnu.org/archive/html/tinycc-devel/2015-03/msg00111.html + +Bound checking: + +- '-b' bug. +- fix bound exit on RedHat 7.3 +- setjmp is not supported properly in bound checking. +- fix bound check code with '&' on local variables (currently done + only for local arrays). +- bound checking and float/long long/struct copy code. bound + checking and symbol + offset optimization + +Missing features: + +- disable-asm and disable-bcheck options +- __builtin_expect() +- improve '-E' option. +- atexit (Nigel Horne) +- packed attribute +- C99: add complex types (gcc 3.2 testsuite issue) +- postfix compound literals (see 20010124-1.c) + +Optimizations: + +- suppress specific anonymous symbol handling +- more parse optimizations (=even faster compilation) +- memory alloc optimizations (=even faster compilation) +- optimize VT_LOCAL + const +- better local variables handling (needed for other targets) + +Not critical: + +- C99: fix multiple compound literals inits in blocks (ISOC99 + normative example - only relevant when using gotos! -> must add + boolean variable to tell if compound literal was already + initialized). +- add PowerPC or ARM code generator and improve codegen for RISC (need + to suppress VT_LOCAL and use a base register instead). +- interactive mode / integrated debugger +- fix preprocessor symbol redefinition +- add portable byte code generator and interpreter for other + unsupported architectures. +- C++: variable declaration in for, minimal 'class' support. +- win32: __intxx. use resolve for bchecked malloc et al. + check exception code (exception filter func). +- handle void (__attribute__() *ptr)() +- VLAs are implemented in a way that is not compatible with signals: + http://lists.gnu.org/archive/html/tinycc-devel/2015-11/msg00018.html + +Fixed (probably): + +- bug with defines: + #define spin_lock(lock) do { } while (0) + #define wq_spin_lock spin_lock + #define TEST() wq_spin_lock(a) +- typedefs can be structure fields +- see bugfixes.diff + improvement.diff from Daniel Glockner +- long long constant evaluation +- add alloca() +- gcc '-E' option. +- #include_next support for /usr/include/limits ? +- function pointers/lvalues in ? : (linux kernel net/core/dev.c) +- win32: add __stdcall, check GetModuleHandle for dlls. diff --git a/external/TCC/VERSION b/external/TCC/VERSION new file mode 100644 index 00000000..46e7a712 --- /dev/null +++ b/external/TCC/VERSION @@ -0,0 +1 @@ +0.9.26 diff --git a/external/TCC/c67-gen.c b/external/TCC/c67-gen.c new file mode 100644 index 00000000..5ea96665 --- /dev/null +++ b/external/TCC/c67-gen.c @@ -0,0 +1,2549 @@ +/* + * TMS320C67xx code generator for TCC + * + * Copyright (c) 2001, 2002 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifdef TARGET_DEFS_ONLY + +/* #define ASSEMBLY_LISTING_C67 */ + +/* number of available registers */ +#define NB_REGS 24 + +/* a register can belong to several classes. The classes must be + sorted from more general to more precise (see gv2() code which does + assumptions on it). */ +#define RC_INT 0x0001 /* generic integer register */ +#define RC_FLOAT 0x0002 /* generic float register */ +#define RC_EAX 0x0004 +#define RC_ST0 0x0008 +#define RC_ECX 0x0010 +#define RC_EDX 0x0020 +#define RC_INT_BSIDE 0x00000040 /* generic integer register on b side */ +#define RC_C67_A4 0x00000100 +#define RC_C67_A5 0x00000200 +#define RC_C67_B4 0x00000400 +#define RC_C67_B5 0x00000800 +#define RC_C67_A6 0x00001000 +#define RC_C67_A7 0x00002000 +#define RC_C67_B6 0x00004000 +#define RC_C67_B7 0x00008000 +#define RC_C67_A8 0x00010000 +#define RC_C67_A9 0x00020000 +#define RC_C67_B8 0x00040000 +#define RC_C67_B9 0x00080000 +#define RC_C67_A10 0x00100000 +#define RC_C67_A11 0x00200000 +#define RC_C67_B10 0x00400000 +#define RC_C67_B11 0x00800000 +#define RC_C67_A12 0x01000000 +#define RC_C67_A13 0x02000000 +#define RC_C67_B12 0x04000000 +#define RC_C67_B13 0x08000000 +#define RC_IRET RC_C67_A4 /* function return: integer register */ +#define RC_LRET RC_C67_A5 /* function return: second integer register */ +#define RC_FRET RC_C67_A4 /* function return: float register */ + +/* pretty names for the registers */ +enum { + TREG_EAX = 0, // really A2 + TREG_ECX, // really A3 + TREG_EDX, // really B0 + TREG_ST0, // really B1 + TREG_C67_A4, + TREG_C67_A5, + TREG_C67_B4, + TREG_C67_B5, + TREG_C67_A6, + TREG_C67_A7, + TREG_C67_B6, + TREG_C67_B7, + TREG_C67_A8, + TREG_C67_A9, + TREG_C67_B8, + TREG_C67_B9, + TREG_C67_A10, + TREG_C67_A11, + TREG_C67_B10, + TREG_C67_B11, + TREG_C67_A12, + TREG_C67_A13, + TREG_C67_B12, + TREG_C67_B13, +}; + +/* return registers for function */ +#define REG_IRET TREG_C67_A4 /* single word int return register */ +#define REG_LRET TREG_C67_A5 /* second word return register (for long long) */ +#define REG_FRET TREG_C67_A4 /* float return register */ + +/* defined if function parameters must be evaluated in reverse order */ +/* #define INVERT_FUNC_PARAMS */ + +/* defined if structures are passed as pointers. Otherwise structures + are directly pushed on stack. */ +/* #define FUNC_STRUCT_PARAM_AS_PTR */ + +/* pointer size, in bytes */ +#define PTR_SIZE 4 + +/* long double size and alignment, in bytes */ +#define LDOUBLE_SIZE 12 +#define LDOUBLE_ALIGN 4 +/* maximum alignment (for aligned attribute support) */ +#define MAX_ALIGN 8 + +/******************************************************/ +/* ELF defines */ + +#define EM_TCC_TARGET EM_C60 + +/* relocation type for 32 bit data relocation */ +#define R_DATA_32 R_C60_32 +#define R_DATA_PTR R_C60_32 +#define R_JMP_SLOT R_C60_JMP_SLOT +#define R_COPY R_C60_COPY + +#define ELF_START_ADDR 0x00000400 +#define ELF_PAGE_SIZE 0x1000 + +/******************************************************/ +#else /* ! TARGET_DEFS_ONLY */ +/******************************************************/ +#include "tcc.h" + +ST_DATA const int reg_classes[NB_REGS] = { + /* eax */ RC_INT | RC_FLOAT | RC_EAX, + // only allow even regs for floats (allow for doubles) + /* ecx */ RC_INT | RC_ECX, + /* edx */ RC_INT | RC_INT_BSIDE | RC_FLOAT | RC_EDX, + // only allow even regs for floats (allow for doubles) + /* st0 */ RC_INT | RC_INT_BSIDE | RC_ST0, + /* A4 */ RC_C67_A4, + /* A5 */ RC_C67_A5, + /* B4 */ RC_C67_B4, + /* B5 */ RC_C67_B5, + /* A6 */ RC_C67_A6, + /* A7 */ RC_C67_A7, + /* B6 */ RC_C67_B6, + /* B7 */ RC_C67_B7, + /* A8 */ RC_C67_A8, + /* A9 */ RC_C67_A9, + /* B8 */ RC_C67_B8, + /* B9 */ RC_C67_B9, + /* A10 */ RC_C67_A10, + /* A11 */ RC_C67_A11, + /* B10 */ RC_C67_B10, + /* B11 */ RC_C67_B11, + /* A12 */ RC_C67_A10, + /* A13 */ RC_C67_A11, + /* B12 */ RC_C67_B10, + /* B13 */ RC_C67_B11 +}; + +// although tcc thinks it is passing parameters on the stack, +// the C67 really passes up to the first 10 params in special +// regs or regs pairs (for 64 bit params). So keep track of +// the stack offsets so we can translate to the appropriate +// reg (pair) + +#define NoCallArgsPassedOnStack 10 +int NoOfCurFuncArgs; +int TranslateStackToReg[NoCallArgsPassedOnStack]; +int ParamLocOnStack[NoCallArgsPassedOnStack]; +int TotalBytesPushedOnStack; + +#ifndef FALSE +# define FALSE 0 +# define TRUE 1 +#endif + +#undef BOOL +#define BOOL int + +#define ALWAYS_ASSERT(x) \ +do {\ + if (!(x))\ + tcc_error("internal compiler error file at %s:%d", __FILE__, __LINE__);\ +} while (0) + +/******************************************************/ +static unsigned long func_sub_sp_offset; +static int func_ret_sub; + +static BOOL C67_invert_test; +static int C67_compare_reg; + +#ifdef ASSEMBLY_LISTING_C67 +FILE *f = NULL; +#endif + +void C67_g(int c) +{ + int ind1; + +#ifdef ASSEMBLY_LISTING_C67 + fprintf(f, " %08X", c); +#endif + ind1 = ind + 4; + if (ind1 > (int) cur_text_section->data_allocated) + section_realloc(cur_text_section, ind1); + cur_text_section->data[ind] = c & 0xff; + cur_text_section->data[ind + 1] = (c >> 8) & 0xff; + cur_text_section->data[ind + 2] = (c >> 16) & 0xff; + cur_text_section->data[ind + 3] = (c >> 24) & 0xff; + ind = ind1; +} + + +/* output a symbol and patch all calls to it */ +void gsym_addr(int t, int a) +{ + int n, *ptr; + while (t) { + ptr = (int *) (cur_text_section->data + t); + { + Sym *sym; + + // extract 32 bit address from MVKH/MVKL + n = ((*ptr >> 7) & 0xffff); + n |= ((*(ptr + 1) >> 7) & 0xffff) << 16; + + // define a label that will be relocated + + sym = get_sym_ref(&char_pointer_type, cur_text_section, a, 0); + greloc(cur_text_section, sym, t, R_C60LO16); + greloc(cur_text_section, sym, t + 4, R_C60HI16); + + // clear out where the pointer was + + *ptr &= ~(0xffff << 7); + *(ptr + 1) &= ~(0xffff << 7); + } + t = n; + } +} + +void gsym(int t) +{ + gsym_addr(t, ind); +} + +// these are regs that tcc doesn't really know about, +// but assign them unique values so the mapping routines +// can distinguish them + +#define C67_A0 105 +#define C67_SP 106 +#define C67_B3 107 +#define C67_FP 108 +#define C67_B2 109 +#define C67_CREG_ZERO -1 /* Special code for no condition reg test */ + + +int ConvertRegToRegClass(int r) +{ + // only works for A4-B13 + + return RC_C67_A4 << (r - TREG_C67_A4); +} + + +// map TCC reg to C67 reg number + +int C67_map_regn(int r) +{ + if (r == 0) // normal tcc regs + return 0x2; // A2 + else if (r == 1) // normal tcc regs + return 3; // A3 + else if (r == 2) // normal tcc regs + return 0; // B0 + else if (r == 3) // normal tcc regs + return 1; // B1 + else if (r >= TREG_C67_A4 && r <= TREG_C67_B13) // these form a pattern of alt pairs + return (((r & 0xfffffffc) >> 1) | (r & 1)) + 2; + else if (r == C67_A0) + return 0; // set to A0 (offset reg) + else if (r == C67_B2) + return 2; // set to B2 (offset reg) + else if (r == C67_B3) + return 3; // set to B3 (return address reg) + else if (r == C67_SP) + return 15; // set to SP (B15) (offset reg) + else if (r == C67_FP) + return 15; // set to FP (A15) (offset reg) + else if (r == C67_CREG_ZERO) + return 0; // Special code for no condition reg test + else + ALWAYS_ASSERT(FALSE); + + return 0; +} + +// mapping from tcc reg number to +// C67 register to condition code field +// +// valid condition code regs are: +// +// tcc reg 2 ->B0 -> 1 +// tcc reg 3 ->B1 -> 2 +// tcc reg 0 -> A2 -> 5 +// tcc reg 1 -> A3 -> X +// tcc reg B2 -> 3 + +int C67_map_regc(int r) +{ + if (r == 0) // normal tcc regs + return 0x5; + else if (r == 2) // normal tcc regs + return 0x1; + else if (r == 3) // normal tcc regs + return 0x2; + else if (r == C67_B2) // normal tcc regs + return 0x3; + else if (r == C67_CREG_ZERO) + return 0; // Special code for no condition reg test + else + ALWAYS_ASSERT(FALSE); + + return 0; +} + + +// map TCC reg to C67 reg side A or B + +int C67_map_regs(int r) +{ + if (r == 0) // normal tcc regs + return 0x0; + else if (r == 1) // normal tcc regs + return 0x0; + else if (r == 2) // normal tcc regs + return 0x1; + else if (r == 3) // normal tcc regs + return 0x1; + else if (r >= TREG_C67_A4 && r <= TREG_C67_B13) // these form a pattern of alt pairs + return (r & 2) >> 1; + else if (r == C67_A0) + return 0; // set to A side + else if (r == C67_B2) + return 1; // set to B side + else if (r == C67_B3) + return 1; // set to B side + else if (r == C67_SP) + return 0x1; // set to SP (B15) B side + else if (r == C67_FP) + return 0x0; // set to FP (A15) A side + else + ALWAYS_ASSERT(FALSE); + + return 0; +} + +int C67_map_S12(char *s) +{ + if (strstr(s, ".S1") != NULL) + return 0; + else if (strcmp(s, ".S2")) + return 1; + else + ALWAYS_ASSERT(FALSE); + + return 0; +} + +int C67_map_D12(char *s) +{ + if (strstr(s, ".D1") != NULL) + return 0; + else if (strcmp(s, ".D2")) + return 1; + else + ALWAYS_ASSERT(FALSE); + + return 0; +} + + + +void C67_asm(char *s, int a, int b, int c) +{ + BOOL xpath; + +#ifdef ASSEMBLY_LISTING_C67 + if (!f) { + f = fopen("TCC67_out.txt", "wt"); + } + fprintf(f, "%04X ", ind); +#endif + + if (strstr(s, "MVKL") == s) { + C67_g((C67_map_regn(b) << 23) | + ((a & 0xffff) << 7) | (0x0a << 2) | (C67_map_regs(b) << 1)); + } else if (strstr(s, "MVKH") == s) { + C67_g((C67_map_regn(b) << 23) | + (((a >> 16) & 0xffff) << 7) | + (0x1a << 2) | (C67_map_regs(b) << 1)); + } else if (strstr(s, "STW.D SP POST DEC") == s) { + C67_g((C67_map_regn(a) << 23) | //src + (15 << 18) | //SP B15 + (2 << 13) | //ucst5 (must keep 8 byte boundary !!) + (0xa << 9) | //mode a = post dec ucst + (0 << 8) | //r (LDDW bit 0) + (1 << 7) | //y D1/D2 use B side + (7 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "STB.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //src + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (3 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "STH.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //src + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (5 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "STB.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //src + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (3 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "STH.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //src + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (5 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "STW.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //src + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (7 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "STW.D *") == s) { + C67_g((C67_map_regn(a) << 23) | //src + (C67_map_regn(b) << 18) | //base reg A0 + (0 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(b) << 7) | //y D1/D2 base reg side + (7 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "STH.D *") == s) { + C67_g((C67_map_regn(a) << 23) | //src + (C67_map_regn(b) << 18) | //base reg A0 + (0 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(b) << 7) | //y D1/D2 base reg side + (5 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "STB.D *") == s) { + C67_g((C67_map_regn(a) << 23) | //src + (C67_map_regn(b) << 18) | //base reg A0 + (0 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(b) << 7) | //y D1/D2 base reg side + (3 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "STW.D +*") == s) { + ALWAYS_ASSERT(c < 32); + C67_g((C67_map_regn(a) << 23) | //src + (C67_map_regn(b) << 18) | //base reg A0 + (c << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(b) << 7) | //y D1/D2 base reg side + (7 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of src + (0 << 0)); //parallel + } else if (strstr(s, "LDW.D SP PRE INC") == s) { + C67_g((C67_map_regn(a) << 23) | //dst + (15 << 18) | //base reg B15 + (2 << 13) | //ucst5 (must keep 8 byte boundary) + (9 << 9) | //mode 9 = pre inc ucst5 + (0 << 8) | //r (LDDW bit 0) + (1 << 7) | //y D1/D2 B side + (6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDDW.D SP PRE INC") == s) { + C67_g((C67_map_regn(a) << 23) | //dst + (15 << 18) | //base reg B15 + (1 << 13) | //ucst5 (must keep 8 byte boundary) + (9 << 9) | //mode 9 = pre inc ucst5 + (1 << 8) | //r (LDDW bit 1) + (1 << 7) | //y D1/D2 B side + (6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDW.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //dst + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDDW.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //dst + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (1 << 8) | //r (LDDW bit 1) + (0 << 7) | //y D1/D2 A side + (6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDH.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //dst + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (4 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDB.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //dst + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (2 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDHU.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //dst + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (0 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDBU.D *+SP[A0]") == s) { + C67_g((C67_map_regn(a) << 23) | //dst + (15 << 18) | //base reg A15 + (0 << 13) | //offset reg A0 + (5 << 9) | //mode 5 = pos offset, base reg + off reg + (0 << 8) | //r (LDDW bit 0) + (0 << 7) | //y D1/D2 A side + (1 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(a) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDW.D *") == s) { + C67_g((C67_map_regn(b) << 23) | //dst + (C67_map_regn(a) << 18) | //base reg A15 + (0 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(a) << 7) | //y D1/D2 src side + (6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(b) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDDW.D *") == s) { + C67_g((C67_map_regn(b) << 23) | //dst + (C67_map_regn(a) << 18) | //base reg A15 + (0 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (1 << 8) | //r (LDDW bit 1) + (C67_map_regs(a) << 7) | //y D1/D2 src side + (6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(b) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDH.D *") == s) { + C67_g((C67_map_regn(b) << 23) | //dst + (C67_map_regn(a) << 18) | //base reg A15 + (0 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(a) << 7) | //y D1/D2 src side + (4 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(b) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDB.D *") == s) { + C67_g((C67_map_regn(b) << 23) | //dst + (C67_map_regn(a) << 18) | //base reg A15 + (0 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(a) << 7) | //y D1/D2 src side + (2 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(b) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDHU.D *") == s) { + C67_g((C67_map_regn(b) << 23) | //dst + (C67_map_regn(a) << 18) | //base reg A15 + (0 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(a) << 7) | //y D1/D2 src side + (0 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(b) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDBU.D *") == s) { + C67_g((C67_map_regn(b) << 23) | //dst + (C67_map_regn(a) << 18) | //base reg A15 + (0 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(a) << 7) | //y D1/D2 src side + (1 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(b) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "LDW.D +*") == s) { + C67_g((C67_map_regn(b) << 23) | //dst + (C67_map_regn(a) << 18) | //base reg A15 + (1 << 13) | //cst5 + (1 << 9) | //mode 1 = pos cst offset + (0 << 8) | //r (LDDW bit 0) + (C67_map_regs(a) << 7) | //y D1/D2 src side + (6 << 4) | //ldst 3=STB, 5=STH 5, 7=STW, 6=LDW 4=LDH 2=LDB 0=LDHU 1=LDBU + (1 << 2) | //opcode + (C67_map_regs(b) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "CMPLTSP") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x3a << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "CMPGTSP") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x39 << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "CMPEQSP") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x38 << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } + + else if (strstr(s, "CMPLTDP") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x2a << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "CMPGTDP") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x29 << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "CMPEQDP") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x28 << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "CMPLT") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x57 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "CMPGT") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x47 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "CMPEQ") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x53 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "CMPLTU") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x5f << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "CMPGTU") == s) { + xpath = C67_map_regs(a) ^ C67_map_regs(b); + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x use cross path for src2 + (0x4f << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side for reg c + (0 << 0)); //parallel + } else if (strstr(s, "B DISP") == s) { + C67_g((0 << 29) | //creg + (0 << 28) | //z + (a << 7) | //cnst + (0x4 << 2) | //opcode fixed + (0 << 1) | //S0/S1 + (0 << 0)); //parallel + } else if (strstr(s, "B.") == s) { + xpath = C67_map_regs(c) ^ 1; + + C67_g((C67_map_regc(b) << 29) | //creg + (a << 28) | //inv + (0 << 23) | //dst + (C67_map_regn(c) << 18) | //src2 + (0 << 13) | // + (xpath << 12) | //x cross path if !B side + (0xd << 6) | //opcode + (0x8 << 2) | //opcode fixed + (1 << 1) | //must be S2 + (0 << 0)); //parallel + } else if (strstr(s, "MV.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (0 << 13) | //src1 (cst5) + (xpath << 12) | //x cross path if opposite sides + (0x2 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "SPTRUNC.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (0 << 13) | //src1 NA + (xpath << 12) | //x cross path if opposite sides + (0xb << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "DPTRUNC.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + ((C67_map_regn(b) + 1) << 18) | //src2 WEIRD CPU must specify odd reg for some reason + (0 << 13) | //src1 NA + (xpath << 12) | //x cross path if opposite sides + (0x1 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "INTSP.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (0 << 13) | //src1 NA + (xpath << 12) | //x cross path if opposite sides + (0x4a << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "INTSPU.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (0 << 13) | //src1 NA + (xpath << 12) | //x cross path if opposite sides + (0x49 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "INTDP.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (0 << 13) | //src1 NA + (xpath << 12) | //x cross path if opposite sides + (0x39 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "INTDPU.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + ((C67_map_regn(b) + 1) << 18) | //src2 WEIRD CPU must specify odd reg for some reason + (0 << 13) | //src1 NA + (xpath << 12) | //x cross path if opposite sides + (0x3b << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "SPDP.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (0 << 13) | //src1 NA + (xpath << 12) | //x cross path if opposite sides + (0x2 << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "DPSP.L") == s) { + ALWAYS_ASSERT(C67_map_regs(b) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + ((C67_map_regn(b) + 1) << 18) | //src2 WEIRD CPU must specify odd reg for some reason + (0 << 13) | //src1 NA + (0 << 12) | //x cross path if opposite sides + (0x9 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "ADD.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x3 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "SUB.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x7 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "OR.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x7f << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "AND.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x7b << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "XOR.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x6f << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "ADDSP.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x10 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "ADDDP.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x18 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "SUBSP.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x11 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "SUBDP.L") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x19 << 5) | //opcode + (0x6 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "MPYSP.M") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x1c << 7) | //opcode + (0x0 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "MPYDP.M") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 (possible x path) + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x0e << 7) | //opcode + (0x0 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "MPYI.M") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(a) == C67_map_regs(c)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 (cst5) + (xpath << 12) | //x cross path if opposite sides + (0x4 << 7) | //opcode + (0x0 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "SHR.S") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x37 << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "SHRU.S") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x27 << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "SHL.S") == s) { + xpath = C67_map_regs(b) ^ C67_map_regs(c); + + ALWAYS_ASSERT(C67_map_regs(c) == C67_map_regs(a)); + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(c) << 23) | //dst + (C67_map_regn(b) << 18) | //src2 + (C67_map_regn(a) << 13) | //src1 + (xpath << 12) | //x cross path if opposite sides + (0x33 << 6) | //opcode + (0x8 << 2) | //opcode fixed + (C67_map_regs(c) << 1) | //side of dest + (0 << 0)); //parallel + } else if (strstr(s, "||ADDK") == s) { + xpath = 0; // no xpath required just use the side of the src/dst + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(b) << 23) | //dst + (a << 07) | //scst16 + (0x14 << 2) | //opcode fixed + (C67_map_regs(b) << 1) | //side of dst + (1 << 0)); //parallel + } else if (strstr(s, "ADDK") == s) { + xpath = 0; // no xpath required just use the side of the src/dst + + C67_g((0 << 29) | //creg + (0 << 28) | //inv + (C67_map_regn(b) << 23) | //dst + (a << 07) | //scst16 + (0x14 << 2) | //opcode fixed + (C67_map_regs(b) << 1) | //side of dst + (0 << 0)); //parallel + } else if (strstr(s, "NOP") == s) { + C67_g(((a - 1) << 13) | //no of cycles + (0 << 0)); //parallel + } else + ALWAYS_ASSERT(FALSE); + +#ifdef ASSEMBLY_LISTING_C67 + fprintf(f, " %s %d %d %d\n", s, a, b, c); +#endif + +} + +//r=reg to load, fr=from reg, symbol for relocation, constant + +void C67_MVKL(int r, int fc) +{ + C67_asm("MVKL.", fc, r, 0); +} + +void C67_MVKH(int r, int fc) +{ + C67_asm("MVKH.", fc, r, 0); +} + +void C67_STB_SP_A0(int r) +{ + C67_asm("STB.D *+SP[A0]", r, 0, 0); // STB r,*+SP[A0] +} + +void C67_STH_SP_A0(int r) +{ + C67_asm("STH.D *+SP[A0]", r, 0, 0); // STH r,*+SP[A0] +} + +void C67_STW_SP_A0(int r) +{ + C67_asm("STW.D *+SP[A0]", r, 0, 0); // STW r,*+SP[A0] +} + +void C67_STB_PTR(int r, int r2) +{ + C67_asm("STB.D *", r, r2, 0); // STB r, *r2 +} + +void C67_STH_PTR(int r, int r2) +{ + C67_asm("STH.D *", r, r2, 0); // STH r, *r2 +} + +void C67_STW_PTR(int r, int r2) +{ + C67_asm("STW.D *", r, r2, 0); // STW r, *r2 +} + +void C67_STW_PTR_PRE_INC(int r, int r2, int n) +{ + C67_asm("STW.D +*", r, r2, n); // STW r, *+r2 +} + +void C67_PUSH(int r) +{ + C67_asm("STW.D SP POST DEC", r, 0, 0); // STW r,*SP-- +} + +void C67_LDW_SP_A0(int r) +{ + C67_asm("LDW.D *+SP[A0]", r, 0, 0); // LDW *+SP[A0],r +} + +void C67_LDDW_SP_A0(int r) +{ + C67_asm("LDDW.D *+SP[A0]", r, 0, 0); // LDDW *+SP[A0],r +} + +void C67_LDH_SP_A0(int r) +{ + C67_asm("LDH.D *+SP[A0]", r, 0, 0); // LDH *+SP[A0],r +} + +void C67_LDB_SP_A0(int r) +{ + C67_asm("LDB.D *+SP[A0]", r, 0, 0); // LDB *+SP[A0],r +} + +void C67_LDHU_SP_A0(int r) +{ + C67_asm("LDHU.D *+SP[A0]", r, 0, 0); // LDHU *+SP[A0],r +} + +void C67_LDBU_SP_A0(int r) +{ + C67_asm("LDBU.D *+SP[A0]", r, 0, 0); // LDBU *+SP[A0],r +} + +void C67_LDW_PTR(int r, int r2) +{ + C67_asm("LDW.D *", r, r2, 0); // LDW *r,r2 +} + +void C67_LDDW_PTR(int r, int r2) +{ + C67_asm("LDDW.D *", r, r2, 0); // LDDW *r,r2 +} + +void C67_LDH_PTR(int r, int r2) +{ + C67_asm("LDH.D *", r, r2, 0); // LDH *r,r2 +} + +void C67_LDB_PTR(int r, int r2) +{ + C67_asm("LDB.D *", r, r2, 0); // LDB *r,r2 +} + +void C67_LDHU_PTR(int r, int r2) +{ + C67_asm("LDHU.D *", r, r2, 0); // LDHU *r,r2 +} + +void C67_LDBU_PTR(int r, int r2) +{ + C67_asm("LDBU.D *", r, r2, 0); // LDBU *r,r2 +} + +void C67_LDW_PTR_PRE_INC(int r, int r2) +{ + C67_asm("LDW.D +*", r, r2, 0); // LDW *+r,r2 +} + +void C67_POP(int r) +{ + C67_asm("LDW.D SP PRE INC", r, 0, 0); // LDW *++SP,r +} + +void C67_POP_DW(int r) +{ + C67_asm("LDDW.D SP PRE INC", r, 0, 0); // LDDW *++SP,r +} + +void C67_CMPLT(int s1, int s2, int dst) +{ + C67_asm("CMPLT.L1", s1, s2, dst); +} + +void C67_CMPGT(int s1, int s2, int dst) +{ + C67_asm("CMPGT.L1", s1, s2, dst); +} + +void C67_CMPEQ(int s1, int s2, int dst) +{ + C67_asm("CMPEQ.L1", s1, s2, dst); +} + +void C67_CMPLTU(int s1, int s2, int dst) +{ + C67_asm("CMPLTU.L1", s1, s2, dst); +} + +void C67_CMPGTU(int s1, int s2, int dst) +{ + C67_asm("CMPGTU.L1", s1, s2, dst); +} + + +void C67_CMPLTSP(int s1, int s2, int dst) +{ + C67_asm("CMPLTSP.S1", s1, s2, dst); +} + +void C67_CMPGTSP(int s1, int s2, int dst) +{ + C67_asm("CMPGTSP.S1", s1, s2, dst); +} + +void C67_CMPEQSP(int s1, int s2, int dst) +{ + C67_asm("CMPEQSP.S1", s1, s2, dst); +} + +void C67_CMPLTDP(int s1, int s2, int dst) +{ + C67_asm("CMPLTDP.S1", s1, s2, dst); +} + +void C67_CMPGTDP(int s1, int s2, int dst) +{ + C67_asm("CMPGTDP.S1", s1, s2, dst); +} + +void C67_CMPEQDP(int s1, int s2, int dst) +{ + C67_asm("CMPEQDP.S1", s1, s2, dst); +} + + +void C67_IREG_B_REG(int inv, int r1, int r2) // [!R] B r2 +{ + C67_asm("B.S2", inv, r1, r2); +} + + +// call with how many 32 bit words to skip +// (0 would branch to the branch instruction) + +void C67_B_DISP(int disp) // B +2 Branch with constant displacement +{ + // Branch point is relative to the 8 word fetch packet + // + // we will assume the text section always starts on an 8 word (32 byte boundary) + // + // so add in how many words into the fetch packet the branch is + + + C67_asm("B DISP", disp + ((ind & 31) >> 2), 0, 0); +} + +void C67_NOP(int n) +{ + C67_asm("NOP", n, 0, 0); +} + +void C67_ADDK(int n, int r) +{ + ALWAYS_ASSERT(abs(n) < 32767); + + C67_asm("ADDK", n, r, 0); +} + +void C67_ADDK_PARALLEL(int n, int r) +{ + ALWAYS_ASSERT(abs(n) < 32767); + + C67_asm("||ADDK", n, r, 0); +} + +void C67_Adjust_ADDK(int *inst, int n) +{ + ALWAYS_ASSERT(abs(n) < 32767); + + *inst = (*inst & (~(0xffff << 7))) | ((n & 0xffff) << 7); +} + +void C67_MV(int r, int v) +{ + C67_asm("MV.L", 0, r, v); +} + + +void C67_DPTRUNC(int r, int v) +{ + C67_asm("DPTRUNC.L", 0, r, v); +} + +void C67_SPTRUNC(int r, int v) +{ + C67_asm("SPTRUNC.L", 0, r, v); +} + +void C67_INTSP(int r, int v) +{ + C67_asm("INTSP.L", 0, r, v); +} + +void C67_INTDP(int r, int v) +{ + C67_asm("INTDP.L", 0, r, v); +} + +void C67_INTSPU(int r, int v) +{ + C67_asm("INTSPU.L", 0, r, v); +} + +void C67_INTDPU(int r, int v) +{ + C67_asm("INTDPU.L", 0, r, v); +} + +void C67_SPDP(int r, int v) +{ + C67_asm("SPDP.L", 0, r, v); +} + +void C67_DPSP(int r, int v) // note regs must be on the same side +{ + C67_asm("DPSP.L", 0, r, v); +} + +void C67_ADD(int r, int v) +{ + C67_asm("ADD.L", v, r, v); +} + +void C67_SUB(int r, int v) +{ + C67_asm("SUB.L", v, r, v); +} + +void C67_AND(int r, int v) +{ + C67_asm("AND.L", v, r, v); +} + +void C67_OR(int r, int v) +{ + C67_asm("OR.L", v, r, v); +} + +void C67_XOR(int r, int v) +{ + C67_asm("XOR.L", v, r, v); +} + +void C67_ADDSP(int r, int v) +{ + C67_asm("ADDSP.L", v, r, v); +} + +void C67_SUBSP(int r, int v) +{ + C67_asm("SUBSP.L", v, r, v); +} + +void C67_MPYSP(int r, int v) +{ + C67_asm("MPYSP.M", v, r, v); +} + +void C67_ADDDP(int r, int v) +{ + C67_asm("ADDDP.L", v, r, v); +} + +void C67_SUBDP(int r, int v) +{ + C67_asm("SUBDP.L", v, r, v); +} + +void C67_MPYDP(int r, int v) +{ + C67_asm("MPYDP.M", v, r, v); +} + +void C67_MPYI(int r, int v) +{ + C67_asm("MPYI.M", v, r, v); +} + +void C67_SHL(int r, int v) +{ + C67_asm("SHL.S", r, v, v); +} + +void C67_SHRU(int r, int v) +{ + C67_asm("SHRU.S", r, v, v); +} + +void C67_SHR(int r, int v) +{ + C67_asm("SHR.S", r, v, v); +} + + + +/* load 'r' from value 'sv' */ +void load(int r, SValue * sv) +{ + int v, t, ft, fc, fr, size = 0, element; + BOOL Unsigned = FALSE; + SValue v1; + + fr = sv->r; + ft = sv->type.t; + fc = sv->c.i; + + v = fr & VT_VALMASK; + if (fr & VT_LVAL) { + if (v == VT_LLOCAL) { + v1.type.t = VT_INT; + v1.r = VT_LOCAL | VT_LVAL; + v1.c.i = fc; + load(r, &v1); + fr = r; + } else if ((ft & VT_BTYPE) == VT_LDOUBLE) { + tcc_error("long double not supported"); + } else if ((ft & VT_TYPE) == VT_BYTE) { + size = 1; + } else if ((ft & VT_TYPE) == (VT_BYTE | VT_UNSIGNED)) { + size = 1; + Unsigned = TRUE; + } else if ((ft & VT_TYPE) == VT_SHORT) { + size = 2; + } else if ((ft & VT_TYPE) == (VT_SHORT | VT_UNSIGNED)) { + size = 2; + Unsigned = TRUE; + } else if ((ft & VT_BTYPE) == VT_DOUBLE) { + size = 8; + } else { + size = 4; + } + + // check if fc is a positive reference on the stack, + // if it is tcc is referencing what it thinks is a parameter + // on the stack, so check if it is really in a register. + + + if (v == VT_LOCAL && fc > 0) { + int stack_pos = 8; + + for (t = 0; t < NoCallArgsPassedOnStack; t++) { + if (fc == stack_pos) + break; + + stack_pos += TranslateStackToReg[t]; + } + + // param has been pushed on stack, get it like a local var + + fc = ParamLocOnStack[t] - 8; + } + + if ((fr & VT_VALMASK) < VT_CONST) // check for pure indirect + { + if (size == 1) { + if (Unsigned) + C67_LDBU_PTR(v, r); // LDBU *v,r + else + C67_LDB_PTR(v, r); // LDB *v,r + } else if (size == 2) { + if (Unsigned) + C67_LDHU_PTR(v, r); // LDHU *v,r + else + C67_LDH_PTR(v, r); // LDH *v,r + } else if (size == 4) { + C67_LDW_PTR(v, r); // LDW *v,r + } else if (size == 8) { + C67_LDDW_PTR(v, r); // LDDW *v,r + } + + C67_NOP(4); // NOP 4 + return; + } else if (fr & VT_SYM) { + greloc(cur_text_section, sv->sym, ind, R_C60LO16); // rem the inst need to be patched + greloc(cur_text_section, sv->sym, ind + 4, R_C60HI16); + + + C67_MVKL(C67_A0, fc); //r=reg to load, constant + C67_MVKH(C67_A0, fc); //r=reg to load, constant + + + if (size == 1) { + if (Unsigned) + C67_LDBU_PTR(C67_A0, r); // LDBU *A0,r + else + C67_LDB_PTR(C67_A0, r); // LDB *A0,r + } else if (size == 2) { + if (Unsigned) + C67_LDHU_PTR(C67_A0, r); // LDHU *A0,r + else + C67_LDH_PTR(C67_A0, r); // LDH *A0,r + } else if (size == 4) { + C67_LDW_PTR(C67_A0, r); // LDW *A0,r + } else if (size == 8) { + C67_LDDW_PTR(C67_A0, r); // LDDW *A0,r + } + + C67_NOP(4); // NOP 4 + return; + } else { + element = size; + + // divide offset in bytes to create element index + C67_MVKL(C67_A0, (fc / element) + 8 / element); //r=reg to load, constant + C67_MVKH(C67_A0, (fc / element) + 8 / element); //r=reg to load, constant + + if (size == 1) { + if (Unsigned) + C67_LDBU_SP_A0(r); // LDBU r, SP[A0] + else + C67_LDB_SP_A0(r); // LDB r, SP[A0] + } else if (size == 2) { + if (Unsigned) + C67_LDHU_SP_A0(r); // LDHU r, SP[A0] + else + C67_LDH_SP_A0(r); // LDH r, SP[A0] + } else if (size == 4) { + C67_LDW_SP_A0(r); // LDW r, SP[A0] + } else if (size == 8) { + C67_LDDW_SP_A0(r); // LDDW r, SP[A0] + } + + + C67_NOP(4); // NOP 4 + return; + } + } else { + if (v == VT_CONST) { + if (fr & VT_SYM) { + greloc(cur_text_section, sv->sym, ind, R_C60LO16); // rem the inst need to be patched + greloc(cur_text_section, sv->sym, ind + 4, R_C60HI16); + } + C67_MVKL(r, fc); //r=reg to load, constant + C67_MVKH(r, fc); //r=reg to load, constant + } else if (v == VT_LOCAL) { + C67_MVKL(r, fc + 8); //r=reg to load, constant C67 stack points to next free + C67_MVKH(r, fc + 8); //r=reg to load, constant + C67_ADD(C67_FP, r); // MV v,r v -> r + } else if (v == VT_CMP) { + C67_MV(C67_compare_reg, r); // MV v,r v -> r + } else if (v == VT_JMP || v == VT_JMPI) { + t = v & 1; + C67_B_DISP(4); // Branch with constant displacement, skip over this branch, load, nop, load + C67_MVKL(r, t); // r=reg to load, 0 or 1 (do this while branching) + C67_NOP(4); // NOP 4 + gsym(fc); // modifies other branches to branch here + C67_MVKL(r, t ^ 1); // r=reg to load, 0 or 1 + } else if (v != r) { + C67_MV(v, r); // MV v,r v -> r + + if ((ft & VT_BTYPE) == VT_DOUBLE) + C67_MV(v + 1, r + 1); // MV v,r v -> r + } + } +} + + +/* store register 'r' in lvalue 'v' */ +void store(int r, SValue * v) +{ + int fr, bt, ft, fc, size, t, element; + + ft = v->type.t; + fc = v->c.i; + fr = v->r & VT_VALMASK; + bt = ft & VT_BTYPE; + /* XXX: incorrect if float reg to reg */ + + if (bt == VT_LDOUBLE) { + tcc_error("long double not supported"); + } else { + if (bt == VT_SHORT) + size = 2; + else if (bt == VT_BYTE) + size = 1; + else if (bt == VT_DOUBLE) + size = 8; + else + size = 4; + + if ((v->r & VT_VALMASK) == VT_CONST) { + /* constant memory reference */ + + if (v->r & VT_SYM) { + greloc(cur_text_section, v->sym, ind, R_C60LO16); // rem the inst need to be patched + greloc(cur_text_section, v->sym, ind + 4, R_C60HI16); + } + C67_MVKL(C67_A0, fc); //r=reg to load, constant + C67_MVKH(C67_A0, fc); //r=reg to load, constant + + if (size == 1) + C67_STB_PTR(r, C67_A0); // STB r, *A0 + else if (size == 2) + C67_STH_PTR(r, C67_A0); // STH r, *A0 + else if (size == 4 || size == 8) + C67_STW_PTR(r, C67_A0); // STW r, *A0 + + if (size == 8) + C67_STW_PTR_PRE_INC(r + 1, C67_A0, 1); // STW r, *+A0[1] + } else if ((v->r & VT_VALMASK) == VT_LOCAL) { + // check case of storing to passed argument that + // tcc thinks is on the stack but for C67 is + // passed as a reg. However it may have been + // saved to the stack, if that reg was required + // for a call to a child function + + if (fc > 0) // argument ?? + { + // walk through sizes and figure which param + + int stack_pos = 8; + + for (t = 0; t < NoCallArgsPassedOnStack; t++) { + if (fc == stack_pos) + break; + + stack_pos += TranslateStackToReg[t]; + } + + // param has been pushed on stack, get it like a local var + fc = ParamLocOnStack[t] - 8; + } + + if (size == 8) + element = 4; + else + element = size; + + // divide offset in bytes to create word index + C67_MVKL(C67_A0, (fc / element) + 8 / element); //r=reg to load, constant + C67_MVKH(C67_A0, (fc / element) + 8 / element); //r=reg to load, constant + + + + if (size == 1) + C67_STB_SP_A0(r); // STB r, SP[A0] + else if (size == 2) + C67_STH_SP_A0(r); // STH r, SP[A0] + else if (size == 4 || size == 8) + C67_STW_SP_A0(r); // STW r, SP[A0] + + if (size == 8) { + C67_ADDK(1, C67_A0); // ADDK 1,A0 + C67_STW_SP_A0(r + 1); // STW r, SP[A0] + } + } else { + if (size == 1) + C67_STB_PTR(r, fr); // STB r, *fr + else if (size == 2) + C67_STH_PTR(r, fr); // STH r, *fr + else if (size == 4 || size == 8) + C67_STW_PTR(r, fr); // STW r, *fr + + if (size == 8) { + C67_STW_PTR_PRE_INC(r + 1, fr, 1); // STW r, *+fr[1] + } + } + } +} + +/* 'is_jmp' is '1' if it is a jump */ +static void gcall_or_jmp(int is_jmp) +{ + int r; + Sym *sym; + + if ((vtop->r & (VT_VALMASK | VT_LVAL)) == VT_CONST) { + /* constant case */ + if (vtop->r & VT_SYM) { + /* relocation case */ + + // get add into A0, then start the jump B3 + + greloc(cur_text_section, vtop->sym, ind, R_C60LO16); // rem the inst need to be patched + greloc(cur_text_section, vtop->sym, ind + 4, R_C60HI16); + + C67_MVKL(C67_A0, 0); //r=reg to load, constant + C67_MVKH(C67_A0, 0); //r=reg to load, constant + C67_IREG_B_REG(0, C67_CREG_ZERO, C67_A0); // B.S2x A0 + + if (is_jmp) { + C67_NOP(5); // simple jump, just put NOP + } else { + // Call, must load return address into B3 during delay slots + + sym = get_sym_ref(&char_pointer_type, cur_text_section, ind + 12, 0); // symbol for return address + greloc(cur_text_section, sym, ind, R_C60LO16); // rem the inst need to be patched + greloc(cur_text_section, sym, ind + 4, R_C60HI16); + C67_MVKL(C67_B3, 0); //r=reg to load, constant + C67_MVKH(C67_B3, 0); //r=reg to load, constant + C67_NOP(3); // put remaining NOPs + } + } else { + /* put an empty PC32 relocation */ + ALWAYS_ASSERT(FALSE); + } + } else { + /* otherwise, indirect call */ + r = gv(RC_INT); + C67_IREG_B_REG(0, C67_CREG_ZERO, r); // B.S2x r + + if (is_jmp) { + C67_NOP(5); // simple jump, just put NOP + } else { + // Call, must load return address into B3 during delay slots + + sym = get_sym_ref(&char_pointer_type, cur_text_section, ind + 12, 0); // symbol for return address + greloc(cur_text_section, sym, ind, R_C60LO16); // rem the inst need to be patched + greloc(cur_text_section, sym, ind + 4, R_C60HI16); + C67_MVKL(C67_B3, 0); //r=reg to load, constant + C67_MVKH(C67_B3, 0); //r=reg to load, constant + C67_NOP(3); // put remaining NOPs + } + } +} + +/* Return the number of registers needed to return the struct, or 0 if + returning via struct pointer. */ +ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *ret_align, int *regsize) { + *ret_align = 1; // Never have to re-align return values for x86-64 + return 0; +} + +/* generate function call with address in (vtop->t, vtop->c) and free function + context. Stack entry is popped */ +void gfunc_call(int nb_args) +{ + int i, r, size = 0; + int args_sizes[NoCallArgsPassedOnStack]; + + if (nb_args > NoCallArgsPassedOnStack) { + tcc_error("more than 10 function params not currently supported"); + // handle more than 10, put some on the stack + } + + for (i = 0; i < nb_args; i++) { + if ((vtop->type.t & VT_BTYPE) == VT_STRUCT) { + ALWAYS_ASSERT(FALSE); + } else { + /* simple type (currently always same size) */ + /* XXX: implicit cast ? */ + + + if ((vtop->type.t & VT_BTYPE) == VT_LLONG) { + tcc_error("long long not supported"); + } else if ((vtop->type.t & VT_BTYPE) == VT_LDOUBLE) { + tcc_error("long double not supported"); + } else if ((vtop->type.t & VT_BTYPE) == VT_DOUBLE) { + size = 8; + } else { + size = 4; + } + + // put the parameter into the corresponding reg (pair) + + r = gv(RC_C67_A4 << (2 * i)); + + // must put on stack because with 1 pass compiler , no way to tell + // if an up coming nested call might overwrite these regs + + C67_PUSH(r); + + if (size == 8) { + C67_STW_PTR_PRE_INC(r + 1, C67_SP, 3); // STW r, *+SP[3] (go back and put the other) + } + args_sizes[i] = size; + } + vtop--; + } + // POP all the params on the stack into registers for the + // immediate call (in reverse order) + + for (i = nb_args - 1; i >= 0; i--) { + + if (args_sizes[i] == 8) + C67_POP_DW(TREG_C67_A4 + i * 2); + else + C67_POP(TREG_C67_A4 + i * 2); + } + gcall_or_jmp(0); + vtop--; +} + + +// to be compatible with Code Composer for the C67 +// the first 10 parameters must be passed in registers +// (pairs for 64 bits) starting wit; A4:A5, then B4:B5 and +// ending with B12:B13. +// +// When a call is made, if the caller has its parameters +// in regs A4-B13 these must be saved before/as the call +// parameters are loaded and restored upon return (or if/when needed). + +/* generate function prolog of type 't' */ +void gfunc_prolog(CType * func_type) +{ + int addr, align, size, func_call, i; + Sym *sym; + CType *type; + + sym = func_type->ref; + func_call = sym->r; + addr = 8; + /* if the function returns a structure, then add an + implicit pointer parameter */ + func_vt = sym->type; + func_var = (sym->c == FUNC_ELLIPSIS); + if ((func_vt.t & VT_BTYPE) == VT_STRUCT) { + func_vc = addr; + addr += 4; + } + + NoOfCurFuncArgs = 0; + + /* define parameters */ + while ((sym = sym->next) != NULL) { + type = &sym->type; + sym_push(sym->v & ~SYM_FIELD, type, VT_LOCAL | lvalue_type(type->t), addr); + size = type_size(type, &align); + size = (size + 3) & ~3; + + // keep track of size of arguments so + // we can translate where tcc thinks they + // are on the stack into the appropriate reg + + TranslateStackToReg[NoOfCurFuncArgs] = size; + NoOfCurFuncArgs++; + +#ifdef FUNC_STRUCT_PARAM_AS_PTR + /* structs are passed as pointer */ + if ((type->t & VT_BTYPE) == VT_STRUCT) { + size = 4; + } +#endif + addr += size; + } + func_ret_sub = 0; + /* pascal type call ? */ + if (func_call == FUNC_STDCALL) + func_ret_sub = addr - 8; + + C67_MV(C67_FP, C67_A0); // move FP -> A0 + C67_MV(C67_SP, C67_FP); // move SP -> FP + + // place all the args passed in regs onto the stack + + loc = 0; + for (i = 0; i < NoOfCurFuncArgs; i++) { + + ParamLocOnStack[i] = loc; // remember where the param is + loc += -8; + + C67_PUSH(TREG_C67_A4 + i * 2); + + if (TranslateStackToReg[i] == 8) { + C67_STW_PTR_PRE_INC(TREG_C67_A4 + i * 2 + 1, C67_SP, 3); // STW r, *+SP[1] (go back and put the other) + } + } + + TotalBytesPushedOnStack = -loc; + + func_sub_sp_offset = ind; // remember where we put the stack instruction + C67_ADDK(0, C67_SP); // ADDK.L2 loc,SP (just put zero temporarily) + + C67_PUSH(C67_A0); + C67_PUSH(C67_B3); +} + +/* generate function epilog */ +void gfunc_epilog(void) +{ + { + int local = (-loc + 7) & -8; // stack must stay aligned to 8 bytes for LDDW instr + C67_POP(C67_B3); + C67_NOP(4); // NOP wait for load + C67_IREG_B_REG(0, C67_CREG_ZERO, C67_B3); // B.S2 B3 + C67_POP(C67_FP); + C67_ADDK(local, C67_SP); // ADDK.L2 loc,SP + C67_Adjust_ADDK((int *) (cur_text_section->data + + func_sub_sp_offset), + -local + TotalBytesPushedOnStack); + C67_NOP(3); // NOP + } +} + +/* generate a jump to a label */ +int gjmp(int t) +{ + int ind1 = ind; + + C67_MVKL(C67_A0, t); //r=reg to load, constant + C67_MVKH(C67_A0, t); //r=reg to load, constant + C67_IREG_B_REG(0, C67_CREG_ZERO, C67_A0); // [!R] B.S2x A0 + C67_NOP(5); + return ind1; +} + +/* generate a jump to a fixed address */ +void gjmp_addr(int a) +{ + Sym *sym; + // I guess this routine is used for relative short + // local jumps, for now just handle it as the general + // case + + // define a label that will be relocated + + sym = get_sym_ref(&char_pointer_type, cur_text_section, a, 0); + greloc(cur_text_section, sym, ind, R_C60LO16); + greloc(cur_text_section, sym, ind + 4, R_C60HI16); + + gjmp(0); // place a zero there later the symbol will be added to it +} + +/* generate a test. set 'inv' to invert test. Stack entry is popped */ +int gtst(int inv, int t) +{ + int ind1, n; + int v, *p; + + v = vtop->r & VT_VALMASK; + if (v == VT_CMP) { + /* fast case : can jump directly since flags are set */ + // C67 uses B2 sort of as flags register + ind1 = ind; + C67_MVKL(C67_A0, t); //r=reg to load, constant + C67_MVKH(C67_A0, t); //r=reg to load, constant + + if (C67_compare_reg != TREG_EAX && // check if not already in a conditional test reg + C67_compare_reg != TREG_EDX && + C67_compare_reg != TREG_ST0 && C67_compare_reg != C67_B2) { + C67_MV(C67_compare_reg, C67_B2); + C67_compare_reg = C67_B2; + } + + C67_IREG_B_REG(C67_invert_test ^ inv, C67_compare_reg, C67_A0); // [!R] B.S2x A0 + C67_NOP(5); + t = ind1; //return where we need to patch + + } else if (v == VT_JMP || v == VT_JMPI) { + /* && or || optimization */ + if ((v & 1) == inv) { + /* insert vtop->c jump list in t */ + + // I guess the idea is to traverse to the + // null at the end of the list and store t + // there + + n = vtop->c.i; + while (n != 0) { + p = (int *) (cur_text_section->data + n); + + // extract 32 bit address from MVKH/MVKL + n = ((*p >> 7) & 0xffff); + n |= ((*(p + 1) >> 7) & 0xffff) << 16; + } + *p |= (t & 0xffff) << 7; + *(p + 1) |= ((t >> 16) & 0xffff) << 7; + t = vtop->c.i; + + } else { + t = gjmp(t); + gsym(vtop->c.i); + } + } + vtop--; + return t; +} + +/* generate an integer binary operation */ +void gen_opi(int op) +{ + int r, fr, opc, t; + + switch (op) { + case '+': + case TOK_ADDC1: /* add with carry generation */ + opc = 0; + gen_op8: + + +// C67 can't do const compares, must load into a reg +// so just go to gv2 directly - tktk + + + + if (op >= TOK_ULT && op <= TOK_GT) + gv2(RC_INT_BSIDE, RC_INT); // make sure r (src1) is on the B Side of CPU + else + gv2(RC_INT, RC_INT); + + r = vtop[-1].r; + fr = vtop[0].r; + + C67_compare_reg = C67_B2; + + + if (op == TOK_LT) { + C67_CMPLT(r, fr, C67_B2); + C67_invert_test = FALSE; + } else if (op == TOK_GE) { + C67_CMPLT(r, fr, C67_B2); + C67_invert_test = TRUE; + } else if (op == TOK_GT) { + C67_CMPGT(r, fr, C67_B2); + C67_invert_test = FALSE; + } else if (op == TOK_LE) { + C67_CMPGT(r, fr, C67_B2); + C67_invert_test = TRUE; + } else if (op == TOK_EQ) { + C67_CMPEQ(r, fr, C67_B2); + C67_invert_test = FALSE; + } else if (op == TOK_NE) { + C67_CMPEQ(r, fr, C67_B2); + C67_invert_test = TRUE; + } else if (op == TOK_ULT) { + C67_CMPLTU(r, fr, C67_B2); + C67_invert_test = FALSE; + } else if (op == TOK_UGE) { + C67_CMPLTU(r, fr, C67_B2); + C67_invert_test = TRUE; + } else if (op == TOK_UGT) { + C67_CMPGTU(r, fr, C67_B2); + C67_invert_test = FALSE; + } else if (op == TOK_ULE) { + C67_CMPGTU(r, fr, C67_B2); + C67_invert_test = TRUE; + } else if (op == '+') + C67_ADD(fr, r); // ADD r,fr,r + else if (op == '-') + C67_SUB(fr, r); // SUB r,fr,r + else if (op == '&') + C67_AND(fr, r); // AND r,fr,r + else if (op == '|') + C67_OR(fr, r); // OR r,fr,r + else if (op == '^') + C67_XOR(fr, r); // XOR r,fr,r + else + ALWAYS_ASSERT(FALSE); + + vtop--; + if (op >= TOK_ULT && op <= TOK_GT) { + vtop->r = VT_CMP; + vtop->c.i = op; + } + break; + case '-': + case TOK_SUBC1: /* sub with carry generation */ + opc = 5; + goto gen_op8; + case TOK_ADDC2: /* add with carry use */ + opc = 2; + goto gen_op8; + case TOK_SUBC2: /* sub with carry use */ + opc = 3; + goto gen_op8; + case '&': + opc = 4; + goto gen_op8; + case '^': + opc = 6; + goto gen_op8; + case '|': + opc = 1; + goto gen_op8; + case '*': + case TOK_UMULL: + gv2(RC_INT, RC_INT); + r = vtop[-1].r; + fr = vtop[0].r; + vtop--; + C67_MPYI(fr, r); // 32 bit bultiply fr,r,fr + C67_NOP(8); // NOP 8 for worst case + break; + case TOK_SHL: + gv2(RC_INT_BSIDE, RC_INT_BSIDE); // shift amount must be on same side as dst + r = vtop[-1].r; + fr = vtop[0].r; + vtop--; + C67_SHL(fr, r); // arithmetic/logical shift + break; + + case TOK_SHR: + gv2(RC_INT_BSIDE, RC_INT_BSIDE); // shift amount must be on same side as dst + r = vtop[-1].r; + fr = vtop[0].r; + vtop--; + C67_SHRU(fr, r); // logical shift + break; + + case TOK_SAR: + gv2(RC_INT_BSIDE, RC_INT_BSIDE); // shift amount must be on same side as dst + r = vtop[-1].r; + fr = vtop[0].r; + vtop--; + C67_SHR(fr, r); // arithmetic shift + break; + + case '/': + t = TOK__divi; + call_func: + vswap(); + /* call generic idiv function */ + vpush_global_sym(&func_old_type, t); + vrott(3); + gfunc_call(2); + vpushi(0); + vtop->r = REG_IRET; + vtop->r2 = VT_CONST; + break; + case TOK_UDIV: + case TOK_PDIV: + t = TOK__divu; + goto call_func; + case '%': + t = TOK__remi; + goto call_func; + case TOK_UMOD: + t = TOK__remu; + goto call_func; + + default: + opc = 7; + goto gen_op8; + } +} + +/* generate a floating point operation 'v = t1 op t2' instruction. The + two operands are guaranted to have the same floating point type */ +/* XXX: need to use ST1 too */ +void gen_opf(int op) +{ + int ft, fc, fr, r; + + if (op >= TOK_ULT && op <= TOK_GT) + gv2(RC_EDX, RC_EAX); // make sure src2 is on b side + else + gv2(RC_FLOAT, RC_FLOAT); // make sure src2 is on b side + + ft = vtop->type.t; + fc = vtop->c.i; + r = vtop->r; + fr = vtop[-1].r; + + + if ((ft & VT_BTYPE) == VT_LDOUBLE) + tcc_error("long doubles not supported"); + + if (op >= TOK_ULT && op <= TOK_GT) { + + r = vtop[-1].r; + fr = vtop[0].r; + + C67_compare_reg = C67_B2; + + if (op == TOK_LT) { + if ((ft & VT_BTYPE) == VT_DOUBLE) + C67_CMPLTDP(r, fr, C67_B2); + else + C67_CMPLTSP(r, fr, C67_B2); + + C67_invert_test = FALSE; + } else if (op == TOK_GE) { + if ((ft & VT_BTYPE) == VT_DOUBLE) + C67_CMPLTDP(r, fr, C67_B2); + else + C67_CMPLTSP(r, fr, C67_B2); + + C67_invert_test = TRUE; + } else if (op == TOK_GT) { + if ((ft & VT_BTYPE) == VT_DOUBLE) + C67_CMPGTDP(r, fr, C67_B2); + else + C67_CMPGTSP(r, fr, C67_B2); + + C67_invert_test = FALSE; + } else if (op == TOK_LE) { + if ((ft & VT_BTYPE) == VT_DOUBLE) + C67_CMPGTDP(r, fr, C67_B2); + else + C67_CMPGTSP(r, fr, C67_B2); + + C67_invert_test = TRUE; + } else if (op == TOK_EQ) { + if ((ft & VT_BTYPE) == VT_DOUBLE) + C67_CMPEQDP(r, fr, C67_B2); + else + C67_CMPEQSP(r, fr, C67_B2); + + C67_invert_test = FALSE; + } else if (op == TOK_NE) { + if ((ft & VT_BTYPE) == VT_DOUBLE) + C67_CMPEQDP(r, fr, C67_B2); + else + C67_CMPEQSP(r, fr, C67_B2); + + C67_invert_test = TRUE; + } else { + ALWAYS_ASSERT(FALSE); + } + vtop->r = VT_CMP; // tell TCC that result is in "flags" actually B2 + } else { + if (op == '+') { + if ((ft & VT_BTYPE) == VT_DOUBLE) { + C67_ADDDP(r, fr); // ADD fr,r,fr + C67_NOP(6); + } else { + C67_ADDSP(r, fr); // ADD fr,r,fr + C67_NOP(3); + } + vtop--; + } else if (op == '-') { + if ((ft & VT_BTYPE) == VT_DOUBLE) { + C67_SUBDP(r, fr); // SUB fr,r,fr + C67_NOP(6); + } else { + C67_SUBSP(r, fr); // SUB fr,r,fr + C67_NOP(3); + } + vtop--; + } else if (op == '*') { + if ((ft & VT_BTYPE) == VT_DOUBLE) { + C67_MPYDP(r, fr); // MPY fr,r,fr + C67_NOP(9); + } else { + C67_MPYSP(r, fr); // MPY fr,r,fr + C67_NOP(3); + } + vtop--; + } else if (op == '/') { + if ((ft & VT_BTYPE) == VT_DOUBLE) { + // must call intrinsic DP floating point divide + vswap(); + /* call generic idiv function */ + vpush_global_sym(&func_old_type, TOK__divd); + vrott(3); + gfunc_call(2); + vpushi(0); + vtop->r = REG_FRET; + vtop->r2 = REG_LRET; + + } else { + // must call intrinsic SP floating point divide + vswap(); + /* call generic idiv function */ + vpush_global_sym(&func_old_type, TOK__divf); + vrott(3); + gfunc_call(2); + vpushi(0); + vtop->r = REG_FRET; + vtop->r2 = VT_CONST; + } + } else + ALWAYS_ASSERT(FALSE); + + + } +} + + +/* convert integers to fp 't' type. Must handle 'int', 'unsigned int' + and 'long long' cases. */ +void gen_cvt_itof(int t) +{ + int r; + + gv(RC_INT); + r = vtop->r; + + if ((t & VT_BTYPE) == VT_DOUBLE) { + if (t & VT_UNSIGNED) + C67_INTDPU(r, r); + else + C67_INTDP(r, r); + + C67_NOP(4); + vtop->type.t = VT_DOUBLE; + } else { + if (t & VT_UNSIGNED) + C67_INTSPU(r, r); + else + C67_INTSP(r, r); + C67_NOP(3); + vtop->type.t = VT_FLOAT; + } + +} + +/* convert fp to int 't' type */ +/* XXX: handle long long case */ +void gen_cvt_ftoi(int t) +{ + int r; + + gv(RC_FLOAT); + r = vtop->r; + + if (t != VT_INT) + tcc_error("long long not supported"); + else { + if ((vtop->type.t & VT_BTYPE) == VT_DOUBLE) { + C67_DPTRUNC(r, r); + C67_NOP(3); + } else { + C67_SPTRUNC(r, r); + C67_NOP(3); + } + + vtop->type.t = VT_INT; + + } +} + +/* convert from one floating point type to another */ +void gen_cvt_ftof(int t) +{ + int r, r2; + + if ((vtop->type.t & VT_BTYPE) == VT_DOUBLE && + (t & VT_BTYPE) == VT_FLOAT) { + // convert double to float + + gv(RC_FLOAT); // get it in a register pair + + r = vtop->r; + + C67_DPSP(r, r); // convert it to SP same register + C67_NOP(3); + + vtop->type.t = VT_FLOAT; + vtop->r2 = VT_CONST; // set this as unused + } else if ((vtop->type.t & VT_BTYPE) == VT_FLOAT && + (t & VT_BTYPE) == VT_DOUBLE) { + // convert float to double + + gv(RC_FLOAT); // get it in a register + + r = vtop->r; + + if (r == TREG_EAX) { // make sure the paired reg is avail + r2 = get_reg(RC_ECX); + } else if (r == TREG_EDX) { + r2 = get_reg(RC_ST0); + } else { + ALWAYS_ASSERT(FALSE); + r2 = 0; /* avoid warning */ + } + + C67_SPDP(r, r); // convert it to DP same register + C67_NOP(1); + + vtop->type.t = VT_DOUBLE; + vtop->r2 = r2; // set this as unused + } else { + ALWAYS_ASSERT(FALSE); + } +} + +/* computed goto support */ +void ggoto(void) +{ + gcall_or_jmp(1); + vtop--; +} + +/* Save the stack pointer onto the stack and return the location of its address */ +ST_FUNC void gen_vla_sp_save(int addr) { + tcc_error("variable length arrays unsupported for this target"); +} + +/* Restore the SP from a location on the stack */ +ST_FUNC void gen_vla_sp_restore(int addr) { + tcc_error("variable length arrays unsupported for this target"); +} + +/* Subtract from the stack pointer, and push the resulting value onto the stack */ +ST_FUNC void gen_vla_alloc(CType *type, int align) { + tcc_error("variable length arrays unsupported for this target"); +} + +/* end of C67 code generator */ +/*************************************************************/ +#endif +/*************************************************************/ diff --git a/external/TCC/coff.h b/external/TCC/coff.h new file mode 100644 index 00000000..ea871a7b --- /dev/null +++ b/external/TCC/coff.h @@ -0,0 +1,446 @@ +/**************************************************************************/ +/* COFF.H */ +/* COFF data structures and related definitions used by the linker */ +/**************************************************************************/ + +/*------------------------------------------------------------------------*/ +/* COFF FILE HEADER */ +/*------------------------------------------------------------------------*/ +struct filehdr { + unsigned short f_magic; /* magic number */ + unsigned short f_nscns; /* number of sections */ + long f_timdat; /* time & date stamp */ + long f_symptr; /* file pointer to symtab */ + long f_nsyms; /* number of symtab entries */ + unsigned short f_opthdr; /* sizeof(optional hdr) */ + unsigned short f_flags; /* flags */ + unsigned short f_TargetID; /* for C6x = 0x0099 */ + }; + +/*------------------------------------------------------------------------*/ +/* File header flags */ +/*------------------------------------------------------------------------*/ +#define F_RELFLG 0x01 /* relocation info stripped from file */ +#define F_EXEC 0x02 /* file is executable (no unresolved refs) */ +#define F_LNNO 0x04 /* line nunbers stripped from file */ +#define F_LSYMS 0x08 /* local symbols stripped from file */ +#define F_GSP10 0x10 /* 34010 version */ +#define F_GSP20 0x20 /* 34020 version */ +#define F_SWABD 0x40 /* bytes swabbed (in names) */ +#define F_AR16WR 0x80 /* byte ordering of an AR16WR (PDP-11) */ +#define F_LITTLE 0x100 /* byte ordering of an AR32WR (vax) */ +#define F_BIG 0x200 /* byte ordering of an AR32W (3B, maxi) */ +#define F_PATCH 0x400 /* contains "patch" list in optional header */ +#define F_NODF 0x400 + +#define F_VERSION (F_GSP10 | F_GSP20) +#define F_BYTE_ORDER (F_LITTLE | F_BIG) +#define FILHDR struct filehdr + +/* #define FILHSZ sizeof(FILHDR) */ +#define FILHSZ 22 /* above rounds to align on 4 bytes which causes problems */ + +#define COFF_C67_MAGIC 0x00c2 + +/*------------------------------------------------------------------------*/ +/* Macros to recognize magic numbers */ +/*------------------------------------------------------------------------*/ +#define ISMAGIC(x) (((unsigned short)(x))==(unsigned short)magic) +#define ISARCHIVE(x) ((((unsigned short)(x))==(unsigned short)ARTYPE)) +#define BADMAGIC(x) (((unsigned short)(x) & 0x8080) && !ISMAGIC(x)) + + +/*------------------------------------------------------------------------*/ +/* OPTIONAL FILE HEADER */ +/*------------------------------------------------------------------------*/ +typedef struct aouthdr { + short magic; /* see magic.h */ + short vstamp; /* version stamp */ + long tsize; /* text size in bytes, padded to FW bdry*/ + long dsize; /* initialized data " " */ + long bsize; /* uninitialized data " " */ + long entrypt; /* entry pt. */ + long text_start; /* base of text used for this file */ + long data_start; /* base of data used for this file */ +} AOUTHDR; + +#define AOUTSZ sizeof(AOUTHDR) + +/*----------------------------------------------------------------------*/ +/* When a UNIX aout header is to be built in the optional header, */ +/* the following magic numbers can appear in that header: */ +/* */ +/* AOUT1MAGIC : default : readonly sharable text segment */ +/* AOUT2MAGIC: : writable text segment */ +/* PAGEMAGIC : : configured for paging */ +/*----------------------------------------------------------------------*/ +#define AOUT1MAGIC 0410 +#define AOUT2MAGIC 0407 +#define PAGEMAGIC 0413 + + +/*------------------------------------------------------------------------*/ +/* COMMON ARCHIVE FILE STRUCTURES */ +/* */ +/* ARCHIVE File Organization: */ +/* _______________________________________________ */ +/* |__________ARCHIVE_MAGIC_STRING_______________| */ +/* |__________ARCHIVE_FILE_MEMBER_1______________| */ +/* | | */ +/* | Archive File Header "ar_hdr" | */ +/* |.............................................| */ +/* | Member Contents | */ +/* | 1. External symbol directory | */ +/* | 2. Text file | */ +/* |_____________________________________________| */ +/* |________ARCHIVE_FILE_MEMBER_2________________| */ +/* | "ar_hdr" | */ +/* |.............................................| */ +/* | Member Contents (.o or text file) | */ +/* |_____________________________________________| */ +/* | . . . | */ +/* | . . . | */ +/* | . . . | */ +/* |_____________________________________________| */ +/* |________ARCHIVE_FILE_MEMBER_n________________| */ +/* | "ar_hdr" | */ +/* |.............................................| */ +/* | Member Contents | */ +/* |_____________________________________________| */ +/* */ +/*------------------------------------------------------------------------*/ + +#define COFF_ARMAG "!\n" +#define SARMAG 8 +#define ARFMAG "`\n" + +struct ar_hdr /* archive file member header - printable ascii */ +{ + char ar_name[16]; /* file member name - `/' terminated */ + char ar_date[12]; /* file member date - decimal */ + char ar_uid[6]; /* file member user id - decimal */ + char ar_gid[6]; /* file member group id - decimal */ + char ar_mode[8]; /* file member mode - octal */ + char ar_size[10]; /* file member size - decimal */ + char ar_fmag[2]; /* ARFMAG - string to end header */ +}; + + +/*------------------------------------------------------------------------*/ +/* SECTION HEADER */ +/*------------------------------------------------------------------------*/ +struct scnhdr { + char s_name[8]; /* section name */ + long s_paddr; /* physical address */ + long s_vaddr; /* virtual address */ + long s_size; /* section size */ + long s_scnptr; /* file ptr to raw data for section */ + long s_relptr; /* file ptr to relocation */ + long s_lnnoptr; /* file ptr to line numbers */ + unsigned int s_nreloc; /* number of relocation entries */ + unsigned int s_nlnno; /* number of line number entries */ + unsigned int s_flags; /* flags */ + unsigned short s_reserved; /* reserved byte */ + unsigned short s_page; /* memory page id */ + }; + +#define SCNHDR struct scnhdr +#define SCNHSZ sizeof(SCNHDR) + +/*------------------------------------------------------------------------*/ +/* Define constants for names of "special" sections */ +/*------------------------------------------------------------------------*/ +/* #define _TEXT ".text" */ +#define _DATA ".data" +#define _BSS ".bss" +#define _CINIT ".cinit" +#define _TV ".tv" + +/*------------------------------------------------------------------------*/ +/* The low 4 bits of s_flags is used as a section "type" */ +/*------------------------------------------------------------------------*/ +#define STYP_REG 0x00 /* "regular" : allocated, relocated, loaded */ +#define STYP_DSECT 0x01 /* "dummy" : not allocated, relocated, not loaded */ +#define STYP_NOLOAD 0x02 /* "noload" : allocated, relocated, not loaded */ +#define STYP_GROUP 0x04 /* "grouped" : formed of input sections */ +#define STYP_PAD 0x08 /* "padding" : not allocated, not relocated, loaded */ +#define STYP_COPY 0x10 /* "copy" : used for C init tables - + not allocated, relocated, + loaded; reloc & lineno + entries processed normally */ +#define STYP_TEXT 0x20 /* section contains text only */ +#define STYP_DATA 0x40 /* section contains data only */ +#define STYP_BSS 0x80 /* section contains bss only */ + +#define STYP_ALIGN 0x100 /* align flag passed by old version assemblers */ +#define ALIGN_MASK 0x0F00 /* part of s_flags that is used for align vals */ +#define ALIGNSIZE(x) (1 << ((x & ALIGN_MASK) >> 8)) + + +/*------------------------------------------------------------------------*/ +/* RELOCATION ENTRIES */ +/*------------------------------------------------------------------------*/ +struct reloc +{ + long r_vaddr; /* (virtual) address of reference */ + short r_symndx; /* index into symbol table */ + unsigned short r_disp; /* additional bits for address calculation */ + unsigned short r_type; /* relocation type */ +}; + +#define RELOC struct reloc +#define RELSZ 10 /* sizeof(RELOC) */ + +/*--------------------------------------------------------------------------*/ +/* define all relocation types */ +/*--------------------------------------------------------------------------*/ + +#define R_ABS 0 /* absolute address - no relocation */ +#define R_DIR16 01 /* UNUSED */ +#define R_REL16 02 /* UNUSED */ +#define R_DIR24 04 /* UNUSED */ +#define R_REL24 05 /* 24 bits, direct */ +#define R_DIR32 06 /* UNUSED */ +#define R_RELBYTE 017 /* 8 bits, direct */ +#define R_RELWORD 020 /* 16 bits, direct */ +#define R_RELLONG 021 /* 32 bits, direct */ +#define R_PCRBYTE 022 /* 8 bits, PC-relative */ +#define R_PCRWORD 023 /* 16 bits, PC-relative */ +#define R_PCRLONG 024 /* 32 bits, PC-relative */ +#define R_OCRLONG 030 /* GSP: 32 bits, one's complement direct */ +#define R_GSPPCR16 031 /* GSP: 16 bits, PC relative (in words) */ +#define R_GSPOPR32 032 /* GSP: 32 bits, direct big-endian */ +#define R_PARTLS16 040 /* Brahma: 16 bit offset of 24 bit address*/ +#define R_PARTMS8 041 /* Brahma: 8 bit page of 24 bit address */ +#define R_PARTLS7 050 /* DSP: 7 bit offset of 16 bit address */ +#define R_PARTMS9 051 /* DSP: 9 bit page of 16 bit address */ +#define R_REL13 052 /* DSP: 13 bits, direct */ + + +/*------------------------------------------------------------------------*/ +/* LINE NUMBER ENTRIES */ +/*------------------------------------------------------------------------*/ +struct lineno +{ + union + { + long l_symndx ; /* sym. table index of function name + iff l_lnno == 0 */ + long l_paddr ; /* (physical) address of line number */ + } l_addr ; + unsigned short l_lnno ; /* line number */ +}; + +#define LINENO struct lineno +#define LINESZ 6 /* sizeof(LINENO) */ + + +/*------------------------------------------------------------------------*/ +/* STORAGE CLASSES */ +/*------------------------------------------------------------------------*/ +#define C_EFCN -1 /* physical end of function */ +#define C_NULL 0 +#define C_AUTO 1 /* automatic variable */ +#define C_EXT 2 /* external symbol */ +#define C_STAT 3 /* static */ +#define C_REG 4 /* register variable */ +#define C_EXTDEF 5 /* external definition */ +#define C_LABEL 6 /* label */ +#define C_ULABEL 7 /* undefined label */ +#define C_MOS 8 /* member of structure */ +#define C_ARG 9 /* function argument */ +#define C_STRTAG 10 /* structure tag */ +#define C_MOU 11 /* member of union */ +#define C_UNTAG 12 /* union tag */ +#define C_TPDEF 13 /* type definition */ +#define C_USTATIC 14 /* undefined static */ +#define C_ENTAG 15 /* enumeration tag */ +#define C_MOE 16 /* member of enumeration */ +#define C_REGPARM 17 /* register parameter */ +#define C_FIELD 18 /* bit field */ + +#define C_BLOCK 100 /* ".bb" or ".eb" */ +#define C_FCN 101 /* ".bf" or ".ef" */ +#define C_EOS 102 /* end of structure */ +#define C_FILE 103 /* file name */ +#define C_LINE 104 /* dummy sclass for line number entry */ +#define C_ALIAS 105 /* duplicate tag */ +#define C_HIDDEN 106 /* special storage class for external */ + /* symbols in dmert public libraries */ + +/*------------------------------------------------------------------------*/ +/* SYMBOL TABLE ENTRIES */ +/*------------------------------------------------------------------------*/ + +#define SYMNMLEN 8 /* Number of characters in a symbol name */ +#define FILNMLEN 14 /* Number of characters in a file name */ +#define DIMNUM 4 /* Number of array dimensions in auxiliary entry */ + + +struct syment +{ + union + { + char _n_name[SYMNMLEN]; /* old COFF version */ + struct + { + long _n_zeroes; /* new == 0 */ + long _n_offset; /* offset into string table */ + } _n_n; + char *_n_nptr[2]; /* allows for overlaying */ + } _n; + long n_value; /* value of symbol */ + short n_scnum; /* section number */ + unsigned short n_type; /* type and derived type */ + char n_sclass; /* storage class */ + char n_numaux; /* number of aux. entries */ +}; + +#define n_name _n._n_name +#define n_nptr _n._n_nptr[1] +#define n_zeroes _n._n_n._n_zeroes +#define n_offset _n._n_n._n_offset + +/*------------------------------------------------------------------------*/ +/* Relocatable symbols have a section number of the */ +/* section in which they are defined. Otherwise, section */ +/* numbers have the following meanings: */ +/*------------------------------------------------------------------------*/ +#define N_UNDEF 0 /* undefined symbol */ +#define N_ABS -1 /* value of symbol is absolute */ +#define N_DEBUG -2 /* special debugging symbol */ +#define N_TV (unsigned short)-3 /* needs transfer vector (preload) */ +#define P_TV (unsigned short)-4 /* needs transfer vector (postload) */ + + +/*------------------------------------------------------------------------*/ +/* The fundamental type of a symbol packed into the low */ +/* 4 bits of the word. */ +/*------------------------------------------------------------------------*/ +#define _EF ".ef" + +#define T_NULL 0 /* no type info */ +#define T_ARG 1 /* function argument (only used by compiler) */ +#define T_CHAR 2 /* character */ +#define T_SHORT 3 /* short integer */ +#define T_INT 4 /* integer */ +#define T_LONG 5 /* long integer */ +#define T_FLOAT 6 /* floating point */ +#define T_DOUBLE 7 /* double word */ +#define T_STRUCT 8 /* structure */ +#define T_UNION 9 /* union */ +#define T_ENUM 10 /* enumeration */ +#define T_MOE 11 /* member of enumeration */ +#define T_UCHAR 12 /* unsigned character */ +#define T_USHORT 13 /* unsigned short */ +#define T_UINT 14 /* unsigned integer */ +#define T_ULONG 15 /* unsigned long */ + +/*------------------------------------------------------------------------*/ +/* derived types are: */ +/*------------------------------------------------------------------------*/ +#define DT_NON 0 /* no derived type */ +#define DT_PTR 1 /* pointer */ +#define DT_FCN 2 /* function */ +#define DT_ARY 3 /* array */ + +#define MKTYPE(basic, d1,d2,d3,d4,d5,d6) \ + ((basic) | ((d1) << 4) | ((d2) << 6) | ((d3) << 8) |\ + ((d4) << 10) | ((d5) << 12) | ((d6) << 14)) + +/*------------------------------------------------------------------------*/ +/* type packing constants and macros */ +/*------------------------------------------------------------------------*/ +#define N_BTMASK_COFF 017 +#define N_TMASK_COFF 060 +#define N_TMASK1_COFF 0300 +#define N_TMASK2_COFF 0360 +#define N_BTSHFT_COFF 4 +#define N_TSHIFT_COFF 2 + +#define BTYPE_COFF(x) ((x) & N_BTMASK_COFF) +#define ISINT(x) (((x) >= T_CHAR && (x) <= T_LONG) || \ + ((x) >= T_UCHAR && (x) <= T_ULONG) || (x) == T_ENUM) +#define ISFLT_COFF(x) ((x) == T_DOUBLE || (x) == T_FLOAT) +#define ISPTR_COFF(x) (((x) & N_TMASK_COFF) == (DT_PTR << N_BTSHFT_COFF)) +#define ISFCN_COFF(x) (((x) & N_TMASK_COFF) == (DT_FCN << N_BTSHFT_COFF)) +#define ISARY_COFF(x) (((x) & N_TMASK_COFF) == (DT_ARY << N_BTSHFT_COFF)) +#define ISTAG_COFF(x) ((x)==C_STRTAG || (x)==C_UNTAG || (x)==C_ENTAG) + +#define INCREF_COFF(x) ((((x)&~N_BTMASK_COFF)<>N_TSHIFT_COFF)&~N_BTMASK_COFF)|((x)&N_BTMASK_COFF)) + + +/*------------------------------------------------------------------------*/ +/* AUXILIARY SYMBOL ENTRY */ +/*------------------------------------------------------------------------*/ +union auxent +{ + struct + { + long x_tagndx; /* str, un, or enum tag indx */ + union + { + struct + { + unsigned short x_lnno; /* declaration line number */ + unsigned short x_size; /* str, union, array size */ + } x_lnsz; + long x_fsize; /* size of function */ + } x_misc; + union + { + struct /* if ISFCN, tag, or .bb */ + { + long x_lnnoptr; /* ptr to fcn line # */ + long x_endndx; /* entry ndx past block end */ + } x_fcn; + struct /* if ISARY, up to 4 dimen. */ + { + unsigned short x_dimen[DIMNUM]; + } x_ary; + } x_fcnary; + unsigned short x_regcount; /* number of registers used by func */ + } x_sym; + struct + { + char x_fname[FILNMLEN]; + } x_file; + struct + { + long x_scnlen; /* section length */ + unsigned short x_nreloc; /* number of relocation entries */ + unsigned short x_nlinno; /* number of line numbers */ + } x_scn; +}; + +#define SYMENT struct syment +#define SYMESZ 18 /* sizeof(SYMENT) */ + +#define AUXENT union auxent +#define AUXESZ 18 /* sizeof(AUXENT) */ + +/*------------------------------------------------------------------------*/ +/* NAMES OF "SPECIAL" SYMBOLS */ +/*------------------------------------------------------------------------*/ +#define _STEXT ".text" +#define _ETEXT "etext" +#define _SDATA ".data" +#define _EDATA "edata" +#define _SBSS ".bss" +#define _END "end" +#define _CINITPTR "cinit" + +/*--------------------------------------------------------------------------*/ +/* ENTRY POINT SYMBOLS */ +/*--------------------------------------------------------------------------*/ +#define _START "_start" +#define _MAIN "_main" + /* _CSTART "_c_int00" (defined in params.h) */ + + +#define _TVORIG "_tvorig" +#define _TORIGIN "_torigin" +#define _DORIGIN "_dorigin" + +#define _SORIGIN "_sorigin" diff --git a/external/TCC/config.h b/external/TCC/config.h new file mode 100644 index 00000000..958399e6 --- /dev/null +++ b/external/TCC/config.h @@ -0,0 +1,7 @@ +#define CONFIG_TCCDIR "C:/Program Files (x86)/tcc" +#define TCC_VERSION "0.9.26" + +/* #undef CONFIG_WIN32 */ +/* #undef CONFIG_WIN64 */ +/* #undef CONFIG_TCC_BCHECK */ +/* #undef CONFIG_TCC_ASSERT */ diff --git a/external/TCC/elf.h b/external/TCC/elf.h new file mode 100644 index 00000000..52ccf3fd --- /dev/null +++ b/external/TCC/elf.h @@ -0,0 +1,3233 @@ +/* This file defines standard ELF types, structures, and macros. + Copyright (C) 1995-2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _ELF_H +#define _ELF_H 1 + +#ifndef _WIN32 +#include +#else +#ifndef __int8_t_defined +#define __int8_t_defined +typedef signed char int8_t; +typedef short int int16_t; +typedef int int32_t; +typedef long long int int64_t; +#endif + +typedef unsigned char uint8_t; +typedef unsigned short int uint16_t; +typedef unsigned int uint32_t; +typedef unsigned long long int uint64_t; +#endif + +/* Standard ELF types. */ + +/* Type for a 16-bit quantity. */ +typedef uint16_t Elf32_Half; +typedef uint16_t Elf64_Half; + +/* Types for signed and unsigned 32-bit quantities. */ +typedef uint32_t Elf32_Word; +typedef int32_t Elf32_Sword; +typedef uint32_t Elf64_Word; +typedef int32_t Elf64_Sword; + +/* Types for signed and unsigned 64-bit quantities. */ +typedef uint64_t Elf32_Xword; +typedef int64_t Elf32_Sxword; +typedef uint64_t Elf64_Xword; +typedef int64_t Elf64_Sxword; + +/* Type of addresses. */ +typedef uint32_t Elf32_Addr; +typedef uint64_t Elf64_Addr; + +/* Type of file offsets. */ +typedef uint32_t Elf32_Off; +typedef uint64_t Elf64_Off; + +/* Type for section indices, which are 16-bit quantities. */ +typedef uint16_t Elf32_Section; +typedef uint16_t Elf64_Section; + +/* Type for version symbol information. */ +typedef Elf32_Half Elf32_Versym; +typedef Elf64_Half Elf64_Versym; + + +/* The ELF file header. This appears at the start of every ELF file. */ + +#define EI_NIDENT (16) + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf32_Half e_type; /* Object file type */ + Elf32_Half e_machine; /* Architecture */ + Elf32_Word e_version; /* Object file version */ + Elf32_Addr e_entry; /* Entry point virtual address */ + Elf32_Off e_phoff; /* Program header table file offset */ + Elf32_Off e_shoff; /* Section header table file offset */ + Elf32_Word e_flags; /* Processor-specific flags */ + Elf32_Half e_ehsize; /* ELF header size in bytes */ + Elf32_Half e_phentsize; /* Program header table entry size */ + Elf32_Half e_phnum; /* Program header table entry count */ + Elf32_Half e_shentsize; /* Section header table entry size */ + Elf32_Half e_shnum; /* Section header table entry count */ + Elf32_Half e_shstrndx; /* Section header string table index */ +} Elf32_Ehdr; + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf64_Half e_type; /* Object file type */ + Elf64_Half e_machine; /* Architecture */ + Elf64_Word e_version; /* Object file version */ + Elf64_Addr e_entry; /* Entry point virtual address */ + Elf64_Off e_phoff; /* Program header table file offset */ + Elf64_Off e_shoff; /* Section header table file offset */ + Elf64_Word e_flags; /* Processor-specific flags */ + Elf64_Half e_ehsize; /* ELF header size in bytes */ + Elf64_Half e_phentsize; /* Program header table entry size */ + Elf64_Half e_phnum; /* Program header table entry count */ + Elf64_Half e_shentsize; /* Section header table entry size */ + Elf64_Half e_shnum; /* Section header table entry count */ + Elf64_Half e_shstrndx; /* Section header string table index */ +} Elf64_Ehdr; + +/* Fields in the e_ident array. The EI_* macros are indices into the + array. The macros under each EI_* macro are the values the byte + may have. */ + +#define EI_MAG0 0 /* File identification byte 0 index */ +#define ELFMAG0 0x7f /* Magic number byte 0 */ + +#define EI_MAG1 1 /* File identification byte 1 index */ +#define ELFMAG1 'E' /* Magic number byte 1 */ + +#define EI_MAG2 2 /* File identification byte 2 index */ +#define ELFMAG2 'L' /* Magic number byte 2 */ + +#define EI_MAG3 3 /* File identification byte 3 index */ +#define ELFMAG3 'F' /* Magic number byte 3 */ + +/* Conglomeration of the identification bytes, for easy testing as a word. */ +#define ELFMAG "\177ELF" +#define SELFMAG 4 + +#define EI_CLASS 4 /* File class byte index */ +#define ELFCLASSNONE 0 /* Invalid class */ +#define ELFCLASS32 1 /* 32-bit objects */ +#define ELFCLASS64 2 /* 64-bit objects */ +#define ELFCLASSNUM 3 + +#define EI_DATA 5 /* Data encoding byte index */ +#define ELFDATANONE 0 /* Invalid data encoding */ +#define ELFDATA2LSB 1 /* 2's complement, little endian */ +#define ELFDATA2MSB 2 /* 2's complement, big endian */ +#define ELFDATANUM 3 + +#define EI_VERSION 6 /* File version byte index */ + /* Value must be EV_CURRENT */ + +#define EI_OSABI 7 /* OS ABI identification */ +#define ELFOSABI_NONE 0 /* UNIX System V ABI */ +#define ELFOSABI_SYSV 0 /* Alias. */ +#define ELFOSABI_HPUX 1 /* HP-UX */ +#define ELFOSABI_NETBSD 2 /* NetBSD. */ +#define ELFOSABI_GNU 3 /* Object uses GNU ELF extensions. */ +#define ELFOSABI_LINUX ELFOSABI_GNU /* Compatibility alias. */ +#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */ +#define ELFOSABI_AIX 7 /* IBM AIX. */ +#define ELFOSABI_IRIX 8 /* SGI Irix. */ +#define ELFOSABI_FREEBSD 9 /* FreeBSD. */ +#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */ +#define ELFOSABI_MODESTO 11 /* Novell Modesto. */ +#define ELFOSABI_OPENBSD 12 /* OpenBSD. */ +#define ELFOSABI_ARM_AEABI 64 /* ARM EABI */ +#define ELFOSABI_ARM 97 /* ARM */ +#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ + +#define EI_ABIVERSION 8 /* ABI version */ + +#define EI_PAD 9 /* Byte index of padding bytes */ + +/* Legal values for e_type (object file type). */ + +#define ET_NONE 0 /* No file type */ +#define ET_REL 1 /* Relocatable file */ +#define ET_EXEC 2 /* Executable file */ +#define ET_DYN 3 /* Shared object file */ +#define ET_CORE 4 /* Core file */ +#define ET_NUM 5 /* Number of defined types */ +#define ET_LOOS 0xfe00 /* OS-specific range start */ +#define ET_HIOS 0xfeff /* OS-specific range end */ +#define ET_LOPROC 0xff00 /* Processor-specific range start */ +#define ET_HIPROC 0xffff /* Processor-specific range end */ + +/* Legal values for e_machine (architecture). */ + +#define EM_NONE 0 /* No machine */ +#define EM_M32 1 /* AT&T WE 32100 */ +#define EM_SPARC 2 /* SUN SPARC */ +#define EM_386 3 /* Intel 80386 */ +#define EM_68K 4 /* Motorola m68k family */ +#define EM_88K 5 /* Motorola m88k family */ +#define EM_860 7 /* Intel 80860 */ +#define EM_MIPS 8 /* MIPS R3000 big-endian */ +#define EM_S370 9 /* IBM System/370 */ +#define EM_MIPS_RS3_LE 10 /* MIPS R3000 little-endian */ + +#define EM_PARISC 15 /* HPPA */ +#define EM_VPP500 17 /* Fujitsu VPP500 */ +#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ +#define EM_960 19 /* Intel 80960 */ +#define EM_PPC 20 /* PowerPC */ +#define EM_PPC64 21 /* PowerPC 64-bit */ +#define EM_S390 22 /* IBM S390 */ + +#define EM_V800 36 /* NEC V800 series */ +#define EM_FR20 37 /* Fujitsu FR20 */ +#define EM_RH32 38 /* TRW RH-32 */ +#define EM_RCE 39 /* Motorola RCE */ +#define EM_ARM 40 /* ARM */ +#define EM_FAKE_ALPHA 41 /* Digital Alpha */ +#define EM_SH 42 /* Hitachi SH */ +#define EM_SPARCV9 43 /* SPARC v9 64-bit */ +#define EM_TRICORE 44 /* Siemens Tricore */ +#define EM_ARC 45 /* Argonaut RISC Core */ +#define EM_H8_300 46 /* Hitachi H8/300 */ +#define EM_H8_300H 47 /* Hitachi H8/300H */ +#define EM_H8S 48 /* Hitachi H8S */ +#define EM_H8_500 49 /* Hitachi H8/500 */ +#define EM_IA_64 50 /* Intel Merced */ +#define EM_MIPS_X 51 /* Stanford MIPS-X */ +#define EM_COLDFIRE 52 /* Motorola Coldfire */ +#define EM_68HC12 53 /* Motorola M68HC12 */ +#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/ +#define EM_PCP 55 /* Siemens PCP */ +#define EM_NCPU 56 /* Sony nCPU embeeded RISC */ +#define EM_NDR1 57 /* Denso NDR1 microprocessor */ +#define EM_STARCORE 58 /* Motorola Start*Core processor */ +#define EM_ME16 59 /* Toyota ME16 processor */ +#define EM_ST100 60 /* STMicroelectronic ST100 processor */ +#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/ +#define EM_X86_64 62 /* AMD x86-64 architecture */ +#define EM_PDSP 63 /* Sony DSP Processor */ + +#define EM_FX66 66 /* Siemens FX66 microcontroller */ +#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ +#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ +#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ +#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ +#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ +#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ +#define EM_SVX 73 /* Silicon Graphics SVx */ +#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ +#define EM_VAX 75 /* Digital VAX */ +#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ +#define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */ +#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ +#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ +#define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ +#define EM_HUANY 81 /* Harvard University machine-independent object files */ +#define EM_PRISM 82 /* SiTera Prism */ +#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ +#define EM_FR30 84 /* Fujitsu FR30 */ +#define EM_D10V 85 /* Mitsubishi D10V */ +#define EM_D30V 86 /* Mitsubishi D30V */ +#define EM_V850 87 /* NEC v850 */ +#define EM_M32R 88 /* Mitsubishi M32R */ +#define EM_MN10300 89 /* Matsushita MN10300 */ +#define EM_MN10200 90 /* Matsushita MN10200 */ +#define EM_PJ 91 /* picoJava */ +#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ +#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ +#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ +#define EM_AARCH64 183 /* ARM AARCH64 */ +#define EM_TILEPRO 188 /* Tilera TILEPro */ +#define EM_TILEGX 191 /* Tilera TILE-Gx */ +#define EM_NUM 192 + +/* If it is necessary to assign new unofficial EM_* values, please + pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the + chances of collision with official or non-GNU unofficial values. */ + +#define EM_ALPHA 0x9026 +#define EM_C60 0x9c60 + +/* Legal values for e_version (version). */ + +#define EV_NONE 0 /* Invalid ELF version */ +#define EV_CURRENT 1 /* Current version */ +#define EV_NUM 2 + +/* Section header. */ + +typedef struct +{ + Elf32_Word sh_name; /* Section name (string tbl index) */ + Elf32_Word sh_type; /* Section type */ + Elf32_Word sh_flags; /* Section flags */ + Elf32_Addr sh_addr; /* Section virtual addr at execution */ + Elf32_Off sh_offset; /* Section file offset */ + Elf32_Word sh_size; /* Section size in bytes */ + Elf32_Word sh_link; /* Link to another section */ + Elf32_Word sh_info; /* Additional section information */ + Elf32_Word sh_addralign; /* Section alignment */ + Elf32_Word sh_entsize; /* Entry size if section holds table */ +} Elf32_Shdr; + +typedef struct +{ + Elf64_Word sh_name; /* Section name (string tbl index) */ + Elf64_Word sh_type; /* Section type */ + Elf64_Xword sh_flags; /* Section flags */ + Elf64_Addr sh_addr; /* Section virtual addr at execution */ + Elf64_Off sh_offset; /* Section file offset */ + Elf64_Xword sh_size; /* Section size in bytes */ + Elf64_Word sh_link; /* Link to another section */ + Elf64_Word sh_info; /* Additional section information */ + Elf64_Xword sh_addralign; /* Section alignment */ + Elf64_Xword sh_entsize; /* Entry size if section holds table */ +} Elf64_Shdr; + +/* Special section indices. */ + +#define SHN_UNDEF 0 /* Undefined section */ +#define SHN_LORESERVE 0xff00 /* Start of reserved indices */ +#define SHN_LOPROC 0xff00 /* Start of processor-specific */ +#define SHN_BEFORE 0xff00 /* Order section before all others + (Solaris). */ +#define SHN_AFTER 0xff01 /* Order section after all others + (Solaris). */ +#define SHN_HIPROC 0xff1f /* End of processor-specific */ +#define SHN_LOOS 0xff20 /* Start of OS-specific */ +#define SHN_HIOS 0xff3f /* End of OS-specific */ +#define SHN_ABS 0xfff1 /* Associated symbol is absolute */ +#define SHN_COMMON 0xfff2 /* Associated symbol is common */ +#define SHN_XINDEX 0xffff /* Index is in extra table. */ +#define SHN_HIRESERVE 0xffff /* End of reserved indices */ + +/* Legal values for sh_type (section type). */ + +#define SHT_NULL 0 /* Section header table entry unused */ +#define SHT_PROGBITS 1 /* Program data */ +#define SHT_SYMTAB 2 /* Symbol table */ +#define SHT_STRTAB 3 /* String table */ +#define SHT_RELA 4 /* Relocation entries with addends */ +#define SHT_HASH 5 /* Symbol hash table */ +#define SHT_DYNAMIC 6 /* Dynamic linking information */ +#define SHT_NOTE 7 /* Notes */ +#define SHT_NOBITS 8 /* Program space with no data (bss) */ +#define SHT_REL 9 /* Relocation entries, no addends */ +#define SHT_SHLIB 10 /* Reserved */ +#define SHT_DYNSYM 11 /* Dynamic linker symbol table */ +#define SHT_INIT_ARRAY 14 /* Array of constructors */ +#define SHT_FINI_ARRAY 15 /* Array of destructors */ +#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */ +#define SHT_GROUP 17 /* Section group */ +#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */ +#define SHT_NUM 19 /* Number of defined types. */ +#define SHT_LOOS 0x60000000 /* Start OS-specific. */ +#define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* Object attributes. */ +#define SHT_GNU_HASH 0x6ffffff6 /* GNU-style hash table. */ +#define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */ +#define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */ +#define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */ +#define SHT_SUNW_move 0x6ffffffa +#define SHT_SUNW_COMDAT 0x6ffffffb +#define SHT_SUNW_syminfo 0x6ffffffc +#define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */ +#define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */ +#define SHT_GNU_versym 0x6fffffff /* Version symbol table. */ +#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */ +#define SHT_HIOS 0x6fffffff /* End OS-specific type */ +#define SHT_LOPROC 0x70000000 /* Start of processor-specific */ +#define SHT_HIPROC 0x7fffffff /* End of processor-specific */ +#define SHT_LOUSER 0x80000000 /* Start of application-specific */ +#define SHT_HIUSER 0x8fffffff /* End of application-specific */ + +/* Legal values for sh_flags (section flags). */ + +#define SHF_WRITE (1 << 0) /* Writable */ +#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ +#define SHF_EXECINSTR (1 << 2) /* Executable */ +#define SHF_MERGE (1 << 4) /* Might be merged */ +#define SHF_STRINGS (1 << 5) /* Contains nul-terminated strings */ +#define SHF_INFO_LINK (1 << 6) /* `sh_info' contains SHT index */ +#define SHF_LINK_ORDER (1 << 7) /* Preserve order after combining */ +#define SHF_OS_NONCONFORMING (1 << 8) /* Non-standard OS specific handling + required */ +#define SHF_GROUP (1 << 9) /* Section is member of a group. */ +#define SHF_TLS (1 << 10) /* Section hold thread-local data. */ +#define SHF_MASKOS 0x0ff00000 /* OS-specific. */ +#define SHF_MASKPROC 0xf0000000 /* Processor-specific */ +#define SHF_ORDERED (1 << 30) /* Special ordering requirement + (Solaris). */ +#define SHF_EXCLUDE (1 << 31) /* Section is excluded unless + referenced or allocated (Solaris).*/ + +/* Section group handling. */ +#define GRP_COMDAT 0x1 /* Mark group as COMDAT. */ + +/* Symbol table entry. */ + +typedef struct +{ + Elf32_Word st_name; /* Symbol name (string tbl index) */ + Elf32_Addr st_value; /* Symbol value */ + Elf32_Word st_size; /* Symbol size */ + unsigned char st_info; /* Symbol type and binding */ + unsigned char st_other; /* Symbol visibility */ + Elf32_Section st_shndx; /* Section index */ +} Elf32_Sym; + +typedef struct +{ + Elf64_Word st_name; /* Symbol name (string tbl index) */ + unsigned char st_info; /* Symbol type and binding */ + unsigned char st_other; /* Symbol visibility */ + Elf64_Section st_shndx; /* Section index */ + Elf64_Addr st_value; /* Symbol value */ + Elf64_Xword st_size; /* Symbol size */ +} Elf64_Sym; + +/* The syminfo section if available contains additional information about + every dynamic symbol. */ + +typedef struct +{ + Elf32_Half si_boundto; /* Direct bindings, symbol bound to */ + Elf32_Half si_flags; /* Per symbol flags */ +} Elf32_Syminfo; + +typedef struct +{ + Elf64_Half si_boundto; /* Direct bindings, symbol bound to */ + Elf64_Half si_flags; /* Per symbol flags */ +} Elf64_Syminfo; + +/* Possible values for si_boundto. */ +#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */ +#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */ +#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */ + +/* Possible bitmasks for si_flags. */ +#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */ +#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */ +#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */ +#define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy + loaded */ +/* Syminfo version values. */ +#define SYMINFO_NONE 0 +#define SYMINFO_CURRENT 1 +#define SYMINFO_NUM 2 + + +/* How to extract and insert information held in the st_info field. */ + +#define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) +#define ELF32_ST_TYPE(val) ((val) & 0xf) +#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) + +/* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */ +#define ELF64_ST_BIND(val) ELF32_ST_BIND (val) +#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) +#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) + +/* Legal values for ST_BIND subfield of st_info (symbol binding). */ + +#define STB_LOCAL 0 /* Local symbol */ +#define STB_GLOBAL 1 /* Global symbol */ +#define STB_WEAK 2 /* Weak symbol */ +#define STB_NUM 3 /* Number of defined types. */ +#define STB_LOOS 10 /* Start of OS-specific */ +#define STB_GNU_UNIQUE 10 /* Unique symbol. */ +#define STB_HIOS 12 /* End of OS-specific */ +#define STB_LOPROC 13 /* Start of processor-specific */ +#define STB_HIPROC 15 /* End of processor-specific */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_NOTYPE 0 /* Symbol type is unspecified */ +#define STT_OBJECT 1 /* Symbol is a data object */ +#define STT_FUNC 2 /* Symbol is a code object */ +#define STT_SECTION 3 /* Symbol associated with a section */ +#define STT_FILE 4 /* Symbol's name is file name */ +#define STT_COMMON 5 /* Symbol is a common data object */ +#define STT_TLS 6 /* Symbol is thread-local data object*/ +#define STT_NUM 7 /* Number of defined types. */ +#define STT_LOOS 10 /* Start of OS-specific */ +#define STT_GNU_IFUNC 10 /* Symbol is indirect code object */ +#define STT_HIOS 12 /* End of OS-specific */ +#define STT_LOPROC 13 /* Start of processor-specific */ +#define STT_HIPROC 15 /* End of processor-specific */ + + +/* Symbol table indices are found in the hash buckets and chain table + of a symbol hash table section. This special index value indicates + the end of a chain, meaning no further symbols are found in that bucket. */ + +#define STN_UNDEF 0 /* End of a chain. */ + + +/* How to extract and insert information held in the st_other field. */ + +#define ELF32_ST_VISIBILITY(o) ((o) & 0x03) + +/* For ELF64 the definitions are the same. */ +#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o) + +/* Symbol visibility specification encoded in the st_other field. */ +#define STV_DEFAULT 0 /* Default symbol visibility rules */ +#define STV_INTERNAL 1 /* Processor specific hidden class */ +#define STV_HIDDEN 2 /* Sym unavailable in other modules */ +#define STV_PROTECTED 3 /* Not preemptible, not exported */ + + +/* Relocation table entry without addend (in section of type SHT_REL). */ + +typedef struct +{ + Elf32_Addr r_offset; /* Address */ + Elf32_Word r_info; /* Relocation type and symbol index */ +} Elf32_Rel; + +/* I have seen two different definitions of the Elf64_Rel and + Elf64_Rela structures, so we'll leave them out until Novell (or + whoever) gets their act together. */ +/* The following, at least, is used on Sparc v9, MIPS, and Alpha. */ + +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ +} Elf64_Rel; + +/* Relocation table entry with addend (in section of type SHT_RELA). */ + +typedef struct +{ + Elf32_Addr r_offset; /* Address */ + Elf32_Word r_info; /* Relocation type and symbol index */ + Elf32_Sword r_addend; /* Addend */ +} Elf32_Rela; + +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ + Elf64_Sxword r_addend; /* Addend */ +} Elf64_Rela; + +/* How to extract and insert information held in the r_info field. */ + +#define ELF32_R_SYM(val) ((val) >> 8) +#define ELF32_R_TYPE(val) ((val) & 0xff) +#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff)) + +#define ELF64_R_SYM(i) ((i) >> 32) +#define ELF64_R_TYPE(i) ((i) & 0xffffffff) +#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type)) + +/* Program segment header. */ + +typedef struct +{ + Elf32_Word p_type; /* Segment type */ + Elf32_Off p_offset; /* Segment file offset */ + Elf32_Addr p_vaddr; /* Segment virtual address */ + Elf32_Addr p_paddr; /* Segment physical address */ + Elf32_Word p_filesz; /* Segment size in file */ + Elf32_Word p_memsz; /* Segment size in memory */ + Elf32_Word p_flags; /* Segment flags */ + Elf32_Word p_align; /* Segment alignment */ +} Elf32_Phdr; + +typedef struct +{ + Elf64_Word p_type; /* Segment type */ + Elf64_Word p_flags; /* Segment flags */ + Elf64_Off p_offset; /* Segment file offset */ + Elf64_Addr p_vaddr; /* Segment virtual address */ + Elf64_Addr p_paddr; /* Segment physical address */ + Elf64_Xword p_filesz; /* Segment size in file */ + Elf64_Xword p_memsz; /* Segment size in memory */ + Elf64_Xword p_align; /* Segment alignment */ +} Elf64_Phdr; + +/* Special value for e_phnum. This indicates that the real number of + program headers is too large to fit into e_phnum. Instead the real + value is in the field sh_info of section 0. */ + +#define PN_XNUM 0xffff + +/* Legal values for p_type (segment type). */ + +#define PT_NULL 0 /* Program header table entry unused */ +#define PT_LOAD 1 /* Loadable program segment */ +#define PT_DYNAMIC 2 /* Dynamic linking information */ +#define PT_INTERP 3 /* Program interpreter */ +#define PT_NOTE 4 /* Auxiliary information */ +#define PT_SHLIB 5 /* Reserved */ +#define PT_PHDR 6 /* Entry for header table itself */ +#define PT_TLS 7 /* Thread-local storage segment */ +#define PT_NUM 8 /* Number of defined types */ +#define PT_LOOS 0x60000000 /* Start of OS-specific */ +#define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */ +#define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */ +#define PT_GNU_RELRO 0x6474e552 /* Read-only after relocation */ +#define PT_LOSUNW 0x6ffffffa +#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */ +#define PT_SUNWSTACK 0x6ffffffb /* Stack segment */ +#define PT_HISUNW 0x6fffffff +#define PT_HIOS 0x6fffffff /* End of OS-specific */ +#define PT_LOPROC 0x70000000 /* Start of processor-specific */ +#define PT_HIPROC 0x7fffffff /* End of processor-specific */ + +/* Legal values for p_flags (segment flags). */ + +#define PF_X (1 << 0) /* Segment is executable */ +#define PF_W (1 << 1) /* Segment is writable */ +#define PF_R (1 << 2) /* Segment is readable */ +#define PF_MASKOS 0x0ff00000 /* OS-specific */ +#define PF_MASKPROC 0xf0000000 /* Processor-specific */ + +/* Legal values for note segment descriptor types for core files. */ + +#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ +#define NT_FPREGSET 2 /* Contains copy of fpregset struct */ +#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ +#define NT_PRXREG 4 /* Contains copy of prxregset struct */ +#define NT_TASKSTRUCT 4 /* Contains copy of task structure */ +#define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */ +#define NT_AUXV 6 /* Contains copy of auxv array */ +#define NT_GWINDOWS 7 /* Contains copy of gwindows struct */ +#define NT_ASRS 8 /* Contains copy of asrset struct */ +#define NT_PSTATUS 10 /* Contains copy of pstatus struct */ +#define NT_PSINFO 13 /* Contains copy of psinfo struct */ +#define NT_PRCRED 14 /* Contains copy of prcred struct */ +#define NT_UTSNAME 15 /* Contains copy of utsname struct */ +#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */ +#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */ +#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct */ +#define NT_PRXFPREG 0x46e62b7f /* Contains copy of user_fxsr_struct */ +#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */ +#define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */ +#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */ +#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */ +#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */ +#define NT_X86_XSTATE 0x202 /* x86 extended state using xsave */ +#define NT_S390_HIGH_GPRS 0x300 /* s390 upper register halves */ +#define NT_S390_TIMER 0x301 /* s390 timer register */ +#define NT_S390_TODCMP 0x302 /* s390 TOD clock comparator register */ +#define NT_S390_TODPREG 0x303 /* s390 TOD programmable register */ +#define NT_S390_CTRS 0x304 /* s390 control registers */ +#define NT_S390_PREFIX 0x305 /* s390 prefix register */ +#define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */ +#define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */ +#define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */ +#define NT_ARM_TLS 0x401 /* ARM TLS register */ +#define NT_ARM_HW_BREAK 0x402 /* ARM hardware breakpoint registers */ +#define NT_ARM_HW_WATCH 0x403 /* ARM hardware watchpoint registers */ + +/* Legal values for the note segment descriptor types for object files. */ + +#define NT_VERSION 1 /* Contains a version string. */ + + +/* Dynamic section entry. */ + +typedef struct +{ + Elf32_Sword d_tag; /* Dynamic entry type */ + union + { + Elf32_Word d_val; /* Integer value */ + Elf32_Addr d_ptr; /* Address value */ + } d_un; +} Elf32_Dyn; + +typedef struct +{ + Elf64_Sxword d_tag; /* Dynamic entry type */ + union + { + Elf64_Xword d_val; /* Integer value */ + Elf64_Addr d_ptr; /* Address value */ + } d_un; +} Elf64_Dyn; + +/* Legal values for d_tag (dynamic entry type). */ + +#define DT_NULL 0 /* Marks end of dynamic section */ +#define DT_NEEDED 1 /* Name of needed library */ +#define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */ +#define DT_PLTGOT 3 /* Processor defined value */ +#define DT_HASH 4 /* Address of symbol hash table */ +#define DT_STRTAB 5 /* Address of string table */ +#define DT_SYMTAB 6 /* Address of symbol table */ +#define DT_RELA 7 /* Address of Rela relocs */ +#define DT_RELASZ 8 /* Total size of Rela relocs */ +#define DT_RELAENT 9 /* Size of one Rela reloc */ +#define DT_STRSZ 10 /* Size of string table */ +#define DT_SYMENT 11 /* Size of one symbol table entry */ +#define DT_INIT 12 /* Address of init function */ +#define DT_FINI 13 /* Address of termination function */ +#define DT_SONAME 14 /* Name of shared object */ +#define DT_RPATH 15 /* Library search path (deprecated) */ +#define DT_SYMBOLIC 16 /* Start symbol search here */ +#define DT_REL 17 /* Address of Rel relocs */ +#define DT_RELSZ 18 /* Total size of Rel relocs */ +#define DT_RELENT 19 /* Size of one Rel reloc */ +#define DT_PLTREL 20 /* Type of reloc in PLT */ +#define DT_DEBUG 21 /* For debugging; unspecified */ +#define DT_TEXTREL 22 /* Reloc might modify .text */ +#define DT_JMPREL 23 /* Address of PLT relocs */ +#define DT_BIND_NOW 24 /* Process relocations of object */ +#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ +#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ +#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ +#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ +#define DT_RUNPATH 29 /* Library search path */ +#define DT_FLAGS 30 /* Flags for the object being loaded */ +#define DT_ENCODING 32 /* Start of encoded range */ +#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ +#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ +#define DT_NUM 34 /* Number used */ +#define DT_LOOS 0x6000000d /* Start of OS-specific */ +#define DT_HIOS 0x6ffff000 /* End of OS-specific */ +#define DT_LOPROC 0x70000000 /* Start of processor-specific */ +#define DT_HIPROC 0x7fffffff /* End of processor-specific */ +#define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */ + +/* DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the + Dyn.d_un.d_val field of the Elf*_Dyn structure. This follows Sun's + approach. */ +#define DT_VALRNGLO 0x6ffffd00 +#define DT_GNU_PRELINKED 0x6ffffdf5 /* Prelinking timestamp */ +#define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* Size of conflict section */ +#define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* Size of library list */ +#define DT_CHECKSUM 0x6ffffdf8 +#define DT_PLTPADSZ 0x6ffffdf9 +#define DT_MOVEENT 0x6ffffdfa +#define DT_MOVESZ 0x6ffffdfb +#define DT_FEATURE_1 0x6ffffdfc /* Feature selection (DTF_*). */ +#define DT_POSFLAG_1 0x6ffffdfd /* Flags for DT_* entries, effecting + the following DT_* entry. */ +#define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */ +#define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */ +#define DT_VALRNGHI 0x6ffffdff +#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) /* Reverse order! */ +#define DT_VALNUM 12 + +/* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the + Dyn.d_un.d_ptr field of the Elf*_Dyn structure. + + If any adjustment is made to the ELF object after it has been + built these entries will need to be adjusted. */ +#define DT_ADDRRNGLO 0x6ffffe00 +#define DT_GNU_HASH 0x6ffffef5 /* GNU-style hash table. */ +#define DT_TLSDESC_PLT 0x6ffffef6 +#define DT_TLSDESC_GOT 0x6ffffef7 +#define DT_GNU_CONFLICT 0x6ffffef8 /* Start of conflict section */ +#define DT_GNU_LIBLIST 0x6ffffef9 /* Library list */ +#define DT_CONFIG 0x6ffffefa /* Configuration information. */ +#define DT_DEPAUDIT 0x6ffffefb /* Dependency auditing. */ +#define DT_AUDIT 0x6ffffefc /* Object auditing. */ +#define DT_PLTPAD 0x6ffffefd /* PLT padding. */ +#define DT_MOVETAB 0x6ffffefe /* Move table. */ +#define DT_SYMINFO 0x6ffffeff /* Syminfo table. */ +#define DT_ADDRRNGHI 0x6ffffeff +#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) /* Reverse order! */ +#define DT_ADDRNUM 11 + +/* The versioning entry types. The next are defined as part of the + GNU extension. */ +#define DT_VERSYM 0x6ffffff0 + +#define DT_RELACOUNT 0x6ffffff9 +#define DT_RELCOUNT 0x6ffffffa + +/* These were chosen by Sun. */ +#define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */ +#define DT_VERDEF 0x6ffffffc /* Address of version definition + table */ +#define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */ +#define DT_VERNEED 0x6ffffffe /* Address of table with needed + versions */ +#define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */ +#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */ +#define DT_VERSIONTAGNUM 16 + +/* Sun added these machine-independent extensions in the "processor-specific" + range. Be compatible. */ +#define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */ +#define DT_FILTER 0x7fffffff /* Shared object to get values from */ +#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1) +#define DT_EXTRANUM 3 + +/* Values of `d_un.d_val' in the DT_FLAGS entry. */ +#define DF_ORIGIN 0x00000001 /* Object may use DF_ORIGIN */ +#define DF_SYMBOLIC 0x00000002 /* Symbol resolutions starts here */ +#define DF_TEXTREL 0x00000004 /* Object contains text relocations */ +#define DF_BIND_NOW 0x00000008 /* No lazy binding for this object */ +#define DF_STATIC_TLS 0x00000010 /* Module uses the static TLS model */ + +/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 + entry in the dynamic section. */ +#define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */ +#define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */ +#define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */ +#define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/ +#define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/ +#define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/ +#define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */ +#define DF_1_ORIGIN 0x00000080 /* $ORIGIN must be handled. */ +#define DF_1_DIRECT 0x00000100 /* Direct binding enabled. */ +#define DF_1_TRANS 0x00000200 +#define DF_1_INTERPOSE 0x00000400 /* Object is used to interpose. */ +#define DF_1_NODEFLIB 0x00000800 /* Ignore default lib search path. */ +#define DF_1_NODUMP 0x00001000 /* Object can't be dldump'ed. */ +#define DF_1_CONFALT 0x00002000 /* Configuration alternative created.*/ +#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */ +#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */ +#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */ +#define DF_1_NODIRECT 0x00020000 /* Object has no-direct binding. */ +#define DF_1_IGNMULDEF 0x00040000 +#define DF_1_NOKSYMS 0x00080000 +#define DF_1_NOHDR 0x00100000 +#define DF_1_EDITED 0x00200000 /* Object is modified after built. */ +#define DF_1_NORELOC 0x00400000 +#define DF_1_SYMINTPOSE 0x00800000 /* Object has individual interposers. */ +#define DF_1_GLOBAUDIT 0x01000000 /* Global auditin required. */ +#define DF_1_SINGLETON 0x02000000 /* Singleton symbols are used. */ + +/* Flags for the feature selection in DT_FEATURE_1. */ +#define DTF_1_PARINIT 0x00000001 +#define DTF_1_CONFEXP 0x00000002 + +/* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry. */ +#define DF_P1_LAZYLOAD 0x00000001 /* Lazyload following object. */ +#define DF_P1_GROUPPERM 0x00000002 /* Symbols from next object are not + generally available. */ + +/* Version definition sections. */ + +typedef struct +{ + Elf32_Half vd_version; /* Version revision */ + Elf32_Half vd_flags; /* Version information */ + Elf32_Half vd_ndx; /* Version Index */ + Elf32_Half vd_cnt; /* Number of associated aux entries */ + Elf32_Word vd_hash; /* Version name hash value */ + Elf32_Word vd_aux; /* Offset in bytes to verdaux array */ + Elf32_Word vd_next; /* Offset in bytes to next verdef + entry */ +} Elf32_Verdef; + +typedef struct +{ + Elf64_Half vd_version; /* Version revision */ + Elf64_Half vd_flags; /* Version information */ + Elf64_Half vd_ndx; /* Version Index */ + Elf64_Half vd_cnt; /* Number of associated aux entries */ + Elf64_Word vd_hash; /* Version name hash value */ + Elf64_Word vd_aux; /* Offset in bytes to verdaux array */ + Elf64_Word vd_next; /* Offset in bytes to next verdef + entry */ +} Elf64_Verdef; + + +/* Legal values for vd_version (version revision). */ +#define VER_DEF_NONE 0 /* No version */ +#define VER_DEF_CURRENT 1 /* Current version */ +#define VER_DEF_NUM 2 /* Given version number */ + +/* Legal values for vd_flags (version information flags). */ +#define VER_FLG_BASE 0x1 /* Version definition of file itself */ +#define VER_FLG_WEAK 0x2 /* Weak version identifier */ + +/* Versym symbol index values. */ +#define VER_NDX_LOCAL 0 /* Symbol is local. */ +#define VER_NDX_GLOBAL 1 /* Symbol is global. */ +#define VER_NDX_LORESERVE 0xff00 /* Beginning of reserved entries. */ +#define VER_NDX_ELIMINATE 0xff01 /* Symbol is to be eliminated. */ + +/* Auxialiary version information. */ + +typedef struct +{ + Elf32_Word vda_name; /* Version or dependency names */ + Elf32_Word vda_next; /* Offset in bytes to next verdaux + entry */ +} Elf32_Verdaux; + +typedef struct +{ + Elf64_Word vda_name; /* Version or dependency names */ + Elf64_Word vda_next; /* Offset in bytes to next verdaux + entry */ +} Elf64_Verdaux; + + +/* Version dependency section. */ + +typedef struct +{ + Elf32_Half vn_version; /* Version of structure */ + Elf32_Half vn_cnt; /* Number of associated aux entries */ + Elf32_Word vn_file; /* Offset of filename for this + dependency */ + Elf32_Word vn_aux; /* Offset in bytes to vernaux array */ + Elf32_Word vn_next; /* Offset in bytes to next verneed + entry */ +} Elf32_Verneed; + +typedef struct +{ + Elf64_Half vn_version; /* Version of structure */ + Elf64_Half vn_cnt; /* Number of associated aux entries */ + Elf64_Word vn_file; /* Offset of filename for this + dependency */ + Elf64_Word vn_aux; /* Offset in bytes to vernaux array */ + Elf64_Word vn_next; /* Offset in bytes to next verneed + entry */ +} Elf64_Verneed; + + +/* Legal values for vn_version (version revision). */ +#define VER_NEED_NONE 0 /* No version */ +#define VER_NEED_CURRENT 1 /* Current version */ +#define VER_NEED_NUM 2 /* Given version number */ + +/* Auxiliary needed version information. */ + +typedef struct +{ + Elf32_Word vna_hash; /* Hash value of dependency name */ + Elf32_Half vna_flags; /* Dependency specific information */ + Elf32_Half vna_other; /* Unused */ + Elf32_Word vna_name; /* Dependency name string offset */ + Elf32_Word vna_next; /* Offset in bytes to next vernaux + entry */ +} Elf32_Vernaux; + +typedef struct +{ + Elf64_Word vna_hash; /* Hash value of dependency name */ + Elf64_Half vna_flags; /* Dependency specific information */ + Elf64_Half vna_other; /* Unused */ + Elf64_Word vna_name; /* Dependency name string offset */ + Elf64_Word vna_next; /* Offset in bytes to next vernaux + entry */ +} Elf64_Vernaux; + + +/* Legal values for vna_flags. */ +#define VER_FLG_WEAK 0x2 /* Weak version identifier */ + + +/* Auxiliary vector. */ + +/* This vector is normally only used by the program interpreter. The + usual definition in an ABI supplement uses the name auxv_t. The + vector is not usually defined in a standard file, but it + can't hurt. We rename it to avoid conflicts. The sizes of these + types are an arrangement between the exec server and the program + interpreter, so we don't fully specify them here. */ + +typedef struct +{ + uint32_t a_type; /* Entry type */ + union + { + uint32_t a_val; /* Integer value */ + /* We use to have pointer elements added here. We cannot do that, + though, since it does not work when using 32-bit definitions + on 64-bit platforms and vice versa. */ + } a_un; +} Elf32_auxv_t; + +typedef struct +{ + uint64_t a_type; /* Entry type */ + union + { + uint64_t a_val; /* Integer value */ + /* We use to have pointer elements added here. We cannot do that, + though, since it does not work when using 32-bit definitions + on 64-bit platforms and vice versa. */ + } a_un; +} Elf64_auxv_t; + +/* Legal values for a_type (entry type). */ + +#define AT_NULL 0 /* End of vector */ +#define AT_IGNORE 1 /* Entry should be ignored */ +#define AT_EXECFD 2 /* File descriptor of program */ +#define AT_PHDR 3 /* Program headers for program */ +#define AT_PHENT 4 /* Size of program header entry */ +#define AT_PHNUM 5 /* Number of program headers */ +#define AT_PAGESZ 6 /* System page size */ +#define AT_BASE 7 /* Base address of interpreter */ +#define AT_FLAGS 8 /* Flags */ +#define AT_ENTRY 9 /* Entry point of program */ +#define AT_NOTELF 10 /* Program is not ELF */ +#define AT_UID 11 /* Real uid */ +#define AT_EUID 12 /* Effective uid */ +#define AT_GID 13 /* Real gid */ +#define AT_EGID 14 /* Effective gid */ +#define AT_CLKTCK 17 /* Frequency of times() */ + +/* Some more special a_type values describing the hardware. */ +#define AT_PLATFORM 15 /* String identifying platform. */ +#define AT_HWCAP 16 /* Machine dependent hints about + processor capabilities. */ + +/* This entry gives some information about the FPU initialization + performed by the kernel. */ +#define AT_FPUCW 18 /* Used FPU control word. */ + +/* Cache block sizes. */ +#define AT_DCACHEBSIZE 19 /* Data cache block size. */ +#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */ +#define AT_UCACHEBSIZE 21 /* Unified cache block size. */ + +/* A special ignored value for PPC, used by the kernel to control the + interpretation of the AUXV. Must be > 16. */ +#define AT_IGNOREPPC 22 /* Entry should be ignored. */ + +#define AT_SECURE 23 /* Boolean, was exec setuid-like? */ + +#define AT_BASE_PLATFORM 24 /* String identifying real platforms.*/ + +#define AT_RANDOM 25 /* Address of 16 random bytes. */ + +#define AT_EXECFN 31 /* Filename of executable. */ + +/* Pointer to the global system page used for system calls and other + nice things. */ +#define AT_SYSINFO 32 +#define AT_SYSINFO_EHDR 33 + +/* Shapes of the caches. Bits 0-3 contains associativity; bits 4-7 contains + log2 of line size; mask those to get cache size. */ +#define AT_L1I_CACHESHAPE 34 +#define AT_L1D_CACHESHAPE 35 +#define AT_L2_CACHESHAPE 36 +#define AT_L3_CACHESHAPE 37 + +/* Note section contents. Each entry in the note section begins with + a header of a fixed form. */ + +typedef struct +{ + Elf32_Word n_namesz; /* Length of the note's name. */ + Elf32_Word n_descsz; /* Length of the note's descriptor. */ + Elf32_Word n_type; /* Type of the note. */ +} Elf32_Nhdr; + +typedef struct +{ + Elf64_Word n_namesz; /* Length of the note's name. */ + Elf64_Word n_descsz; /* Length of the note's descriptor. */ + Elf64_Word n_type; /* Type of the note. */ +} Elf64_Nhdr; + +/* Known names of notes. */ + +/* Solaris entries in the note section have this name. */ +#define ELF_NOTE_SOLARIS "SUNW Solaris" + +/* Note entries for GNU systems have this name. */ +#define ELF_NOTE_GNU "GNU" + + +/* Defined types of notes for Solaris. */ + +/* Value of descriptor (one word) is desired pagesize for the binary. */ +#define ELF_NOTE_PAGESIZE_HINT 1 + + +/* Defined note types for GNU systems. */ + +/* ABI information. The descriptor consists of words: + word 0: OS descriptor + word 1: major version of the ABI + word 2: minor version of the ABI + word 3: subminor version of the ABI +*/ +#define NT_GNU_ABI_TAG 1 +#define ELF_NOTE_ABI NT_GNU_ABI_TAG /* Old name. */ + +/* Known OSes. These values can appear in word 0 of an + NT_GNU_ABI_TAG note section entry. */ +#define ELF_NOTE_OS_LINUX 0 +#define ELF_NOTE_OS_GNU 1 +#define ELF_NOTE_OS_SOLARIS2 2 +#define ELF_NOTE_OS_FREEBSD 3 + +/* Synthetic hwcap information. The descriptor begins with two words: + word 0: number of entries + word 1: bitmask of enabled entries + Then follow variable-length entries, one byte followed by a + '\0'-terminated hwcap name string. The byte gives the bit + number to test if enabled, (1U << bit) & bitmask. */ +#define NT_GNU_HWCAP 2 + +/* Build ID bits as generated by ld --build-id. + The descriptor consists of any nonzero number of bytes. */ +#define NT_GNU_BUILD_ID 3 + +/* Version note generated by GNU gold containing a version string. */ +#define NT_GNU_GOLD_VERSION 4 + + +/* Move records. */ +typedef struct +{ + Elf32_Xword m_value; /* Symbol value. */ + Elf32_Word m_info; /* Size and index. */ + Elf32_Word m_poffset; /* Symbol offset. */ + Elf32_Half m_repeat; /* Repeat count. */ + Elf32_Half m_stride; /* Stride info. */ +} Elf32_Move; + +typedef struct +{ + Elf64_Xword m_value; /* Symbol value. */ + Elf64_Xword m_info; /* Size and index. */ + Elf64_Xword m_poffset; /* Symbol offset. */ + Elf64_Half m_repeat; /* Repeat count. */ + Elf64_Half m_stride; /* Stride info. */ +} Elf64_Move; + +/* Macro to construct move records. */ +#define ELF32_M_SYM(info) ((info) >> 8) +#define ELF32_M_SIZE(info) ((unsigned char) (info)) +#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char) (size)) + +#define ELF64_M_SYM(info) ELF32_M_SYM (info) +#define ELF64_M_SIZE(info) ELF32_M_SIZE (info) +#define ELF64_M_INFO(sym, size) ELF32_M_INFO (sym, size) + + +/* Motorola 68k specific definitions. */ + +/* Values for Elf32_Ehdr.e_flags. */ +#define EF_CPU32 0x00810000 + +/* m68k relocs. */ + +#define R_68K_NONE 0 /* No reloc */ +#define R_68K_32 1 /* Direct 32 bit */ +#define R_68K_16 2 /* Direct 16 bit */ +#define R_68K_8 3 /* Direct 8 bit */ +#define R_68K_PC32 4 /* PC relative 32 bit */ +#define R_68K_PC16 5 /* PC relative 16 bit */ +#define R_68K_PC8 6 /* PC relative 8 bit */ +#define R_68K_GOT32 7 /* 32 bit PC relative GOT entry */ +#define R_68K_GOT16 8 /* 16 bit PC relative GOT entry */ +#define R_68K_GOT8 9 /* 8 bit PC relative GOT entry */ +#define R_68K_GOT32O 10 /* 32 bit GOT offset */ +#define R_68K_GOT16O 11 /* 16 bit GOT offset */ +#define R_68K_GOT8O 12 /* 8 bit GOT offset */ +#define R_68K_PLT32 13 /* 32 bit PC relative PLT address */ +#define R_68K_PLT16 14 /* 16 bit PC relative PLT address */ +#define R_68K_PLT8 15 /* 8 bit PC relative PLT address */ +#define R_68K_PLT32O 16 /* 32 bit PLT offset */ +#define R_68K_PLT16O 17 /* 16 bit PLT offset */ +#define R_68K_PLT8O 18 /* 8 bit PLT offset */ +#define R_68K_COPY 19 /* Copy symbol at runtime */ +#define R_68K_GLOB_DAT 20 /* Create GOT entry */ +#define R_68K_JMP_SLOT 21 /* Create PLT entry */ +#define R_68K_RELATIVE 22 /* Adjust by program base */ +#define R_68K_TLS_GD32 25 /* 32 bit GOT offset for GD */ +#define R_68K_TLS_GD16 26 /* 16 bit GOT offset for GD */ +#define R_68K_TLS_GD8 27 /* 8 bit GOT offset for GD */ +#define R_68K_TLS_LDM32 28 /* 32 bit GOT offset for LDM */ +#define R_68K_TLS_LDM16 29 /* 16 bit GOT offset for LDM */ +#define R_68K_TLS_LDM8 30 /* 8 bit GOT offset for LDM */ +#define R_68K_TLS_LDO32 31 /* 32 bit module-relative offset */ +#define R_68K_TLS_LDO16 32 /* 16 bit module-relative offset */ +#define R_68K_TLS_LDO8 33 /* 8 bit module-relative offset */ +#define R_68K_TLS_IE32 34 /* 32 bit GOT offset for IE */ +#define R_68K_TLS_IE16 35 /* 16 bit GOT offset for IE */ +#define R_68K_TLS_IE8 36 /* 8 bit GOT offset for IE */ +#define R_68K_TLS_LE32 37 /* 32 bit offset relative to + static TLS block */ +#define R_68K_TLS_LE16 38 /* 16 bit offset relative to + static TLS block */ +#define R_68K_TLS_LE8 39 /* 8 bit offset relative to + static TLS block */ +#define R_68K_TLS_DTPMOD32 40 /* 32 bit module number */ +#define R_68K_TLS_DTPREL32 41 /* 32 bit module-relative offset */ +#define R_68K_TLS_TPREL32 42 /* 32 bit TP-relative offset */ +/* Keep this the last entry. */ +#define R_68K_NUM 43 + +/* Intel 80386 specific definitions. */ + +/* i386 relocs. */ + +#define R_386_NONE 0 /* No reloc */ +#define R_386_32 1 /* Direct 32 bit */ +#define R_386_PC32 2 /* PC relative 32 bit */ +#define R_386_GOT32 3 /* 32 bit GOT entry */ +#define R_386_PLT32 4 /* 32 bit PLT address */ +#define R_386_COPY 5 /* Copy symbol at runtime */ +#define R_386_GLOB_DAT 6 /* Create GOT entry */ +#define R_386_JMP_SLOT 7 /* Create PLT entry */ +#define R_386_RELATIVE 8 /* Adjust by program base */ +#define R_386_GOTOFF 9 /* 32 bit offset to GOT */ +#define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */ +#define R_386_32PLT 11 +#define R_386_TLS_TPOFF 14 /* Offset in static TLS block */ +#define R_386_TLS_IE 15 /* Address of GOT entry for static TLS + block offset */ +#define R_386_TLS_GOTIE 16 /* GOT entry for static TLS block + offset */ +#define R_386_TLS_LE 17 /* Offset relative to static TLS + block */ +#define R_386_TLS_GD 18 /* Direct 32 bit for GNU version of + general dynamic thread local data */ +#define R_386_TLS_LDM 19 /* Direct 32 bit for GNU version of + local dynamic thread local data + in LE code */ +#define R_386_16 20 +#define R_386_PC16 21 +#define R_386_8 22 +#define R_386_PC8 23 +#define R_386_TLS_GD_32 24 /* Direct 32 bit for general dynamic + thread local data */ +#define R_386_TLS_GD_PUSH 25 /* Tag for pushl in GD TLS code */ +#define R_386_TLS_GD_CALL 26 /* Relocation for call to + __tls_get_addr() */ +#define R_386_TLS_GD_POP 27 /* Tag for popl in GD TLS code */ +#define R_386_TLS_LDM_32 28 /* Direct 32 bit for local dynamic + thread local data in LE code */ +#define R_386_TLS_LDM_PUSH 29 /* Tag for pushl in LDM TLS code */ +#define R_386_TLS_LDM_CALL 30 /* Relocation for call to + __tls_get_addr() in LDM code */ +#define R_386_TLS_LDM_POP 31 /* Tag for popl in LDM TLS code */ +#define R_386_TLS_LDO_32 32 /* Offset relative to TLS block */ +#define R_386_TLS_IE_32 33 /* GOT entry for negated static TLS + block offset */ +#define R_386_TLS_LE_32 34 /* Negated offset relative to static + TLS block */ +#define R_386_TLS_DTPMOD32 35 /* ID of module containing symbol */ +#define R_386_TLS_DTPOFF32 36 /* Offset in TLS block */ +#define R_386_TLS_TPOFF32 37 /* Negated offset in static TLS block */ +/* 38? */ +#define R_386_TLS_GOTDESC 39 /* GOT offset for TLS descriptor. */ +#define R_386_TLS_DESC_CALL 40 /* Marker of call through TLS + descriptor for + relaxation. */ +#define R_386_TLS_DESC 41 /* TLS descriptor containing + pointer to code and to + argument, returning the TLS + offset for the symbol. */ +#define R_386_IRELATIVE 42 /* Adjust indirectly by program base */ +#define R_386_GOT32X 43 /* 32 bit GOT entry, relaxable */ +/* Keep this the last entry. */ +#define R_386_NUM 44 + +/* SUN SPARC specific definitions. */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_SPARC_REGISTER 13 /* Global register reserved to app. */ + +/* Values for Elf64_Ehdr.e_flags. */ + +#define EF_SPARCV9_MM 3 +#define EF_SPARCV9_TSO 0 +#define EF_SPARCV9_PSO 1 +#define EF_SPARCV9_RMO 2 +#define EF_SPARC_LEDATA 0x800000 /* little endian data */ +#define EF_SPARC_EXT_MASK 0xFFFF00 +#define EF_SPARC_32PLUS 0x000100 /* generic V8+ features */ +#define EF_SPARC_SUN_US1 0x000200 /* Sun UltraSPARC1 extensions */ +#define EF_SPARC_HAL_R1 0x000400 /* HAL R1 extensions */ +#define EF_SPARC_SUN_US3 0x000800 /* Sun UltraSPARCIII extensions */ + +/* SPARC relocs. */ + +#define R_SPARC_NONE 0 /* No reloc */ +#define R_SPARC_8 1 /* Direct 8 bit */ +#define R_SPARC_16 2 /* Direct 16 bit */ +#define R_SPARC_32 3 /* Direct 32 bit */ +#define R_SPARC_DISP8 4 /* PC relative 8 bit */ +#define R_SPARC_DISP16 5 /* PC relative 16 bit */ +#define R_SPARC_DISP32 6 /* PC relative 32 bit */ +#define R_SPARC_WDISP30 7 /* PC relative 30 bit shifted */ +#define R_SPARC_WDISP22 8 /* PC relative 22 bit shifted */ +#define R_SPARC_HI22 9 /* High 22 bit */ +#define R_SPARC_22 10 /* Direct 22 bit */ +#define R_SPARC_13 11 /* Direct 13 bit */ +#define R_SPARC_LO10 12 /* Truncated 10 bit */ +#define R_SPARC_GOT10 13 /* Truncated 10 bit GOT entry */ +#define R_SPARC_GOT13 14 /* 13 bit GOT entry */ +#define R_SPARC_GOT22 15 /* 22 bit GOT entry shifted */ +#define R_SPARC_PC10 16 /* PC relative 10 bit truncated */ +#define R_SPARC_PC22 17 /* PC relative 22 bit shifted */ +#define R_SPARC_WPLT30 18 /* 30 bit PC relative PLT address */ +#define R_SPARC_COPY 19 /* Copy symbol at runtime */ +#define R_SPARC_GLOB_DAT 20 /* Create GOT entry */ +#define R_SPARC_JMP_SLOT 21 /* Create PLT entry */ +#define R_SPARC_RELATIVE 22 /* Adjust by program base */ +#define R_SPARC_UA32 23 /* Direct 32 bit unaligned */ + +/* Additional Sparc64 relocs. */ + +#define R_SPARC_PLT32 24 /* Direct 32 bit ref to PLT entry */ +#define R_SPARC_HIPLT22 25 /* High 22 bit PLT entry */ +#define R_SPARC_LOPLT10 26 /* Truncated 10 bit PLT entry */ +#define R_SPARC_PCPLT32 27 /* PC rel 32 bit ref to PLT entry */ +#define R_SPARC_PCPLT22 28 /* PC rel high 22 bit PLT entry */ +#define R_SPARC_PCPLT10 29 /* PC rel trunc 10 bit PLT entry */ +#define R_SPARC_10 30 /* Direct 10 bit */ +#define R_SPARC_11 31 /* Direct 11 bit */ +#define R_SPARC_64 32 /* Direct 64 bit */ +#define R_SPARC_OLO10 33 /* 10bit with secondary 13bit addend */ +#define R_SPARC_HH22 34 /* Top 22 bits of direct 64 bit */ +#define R_SPARC_HM10 35 /* High middle 10 bits of ... */ +#define R_SPARC_LM22 36 /* Low middle 22 bits of ... */ +#define R_SPARC_PC_HH22 37 /* Top 22 bits of pc rel 64 bit */ +#define R_SPARC_PC_HM10 38 /* High middle 10 bit of ... */ +#define R_SPARC_PC_LM22 39 /* Low miggle 22 bits of ... */ +#define R_SPARC_WDISP16 40 /* PC relative 16 bit shifted */ +#define R_SPARC_WDISP19 41 /* PC relative 19 bit shifted */ +#define R_SPARC_GLOB_JMP 42 /* was part of v9 ABI but was removed */ +#define R_SPARC_7 43 /* Direct 7 bit */ +#define R_SPARC_5 44 /* Direct 5 bit */ +#define R_SPARC_6 45 /* Direct 6 bit */ +#define R_SPARC_DISP64 46 /* PC relative 64 bit */ +#define R_SPARC_PLT64 47 /* Direct 64 bit ref to PLT entry */ +#define R_SPARC_HIX22 48 /* High 22 bit complemented */ +#define R_SPARC_LOX10 49 /* Truncated 11 bit complemented */ +#define R_SPARC_H44 50 /* Direct high 12 of 44 bit */ +#define R_SPARC_M44 51 /* Direct mid 22 of 44 bit */ +#define R_SPARC_L44 52 /* Direct low 10 of 44 bit */ +#define R_SPARC_REGISTER 53 /* Global register usage */ +#define R_SPARC_UA64 54 /* Direct 64 bit unaligned */ +#define R_SPARC_UA16 55 /* Direct 16 bit unaligned */ +#define R_SPARC_TLS_GD_HI22 56 +#define R_SPARC_TLS_GD_LO10 57 +#define R_SPARC_TLS_GD_ADD 58 +#define R_SPARC_TLS_GD_CALL 59 +#define R_SPARC_TLS_LDM_HI22 60 +#define R_SPARC_TLS_LDM_LO10 61 +#define R_SPARC_TLS_LDM_ADD 62 +#define R_SPARC_TLS_LDM_CALL 63 +#define R_SPARC_TLS_LDO_HIX22 64 +#define R_SPARC_TLS_LDO_LOX10 65 +#define R_SPARC_TLS_LDO_ADD 66 +#define R_SPARC_TLS_IE_HI22 67 +#define R_SPARC_TLS_IE_LO10 68 +#define R_SPARC_TLS_IE_LD 69 +#define R_SPARC_TLS_IE_LDX 70 +#define R_SPARC_TLS_IE_ADD 71 +#define R_SPARC_TLS_LE_HIX22 72 +#define R_SPARC_TLS_LE_LOX10 73 +#define R_SPARC_TLS_DTPMOD32 74 +#define R_SPARC_TLS_DTPMOD64 75 +#define R_SPARC_TLS_DTPOFF32 76 +#define R_SPARC_TLS_DTPOFF64 77 +#define R_SPARC_TLS_TPOFF32 78 +#define R_SPARC_TLS_TPOFF64 79 +#define R_SPARC_GOTDATA_HIX22 80 +#define R_SPARC_GOTDATA_LOX10 81 +#define R_SPARC_GOTDATA_OP_HIX22 82 +#define R_SPARC_GOTDATA_OP_LOX10 83 +#define R_SPARC_GOTDATA_OP 84 +#define R_SPARC_H34 85 +#define R_SPARC_SIZE32 86 +#define R_SPARC_SIZE64 87 +#define R_SPARC_WDISP10 88 +#define R_SPARC_JMP_IREL 248 +#define R_SPARC_IRELATIVE 249 +#define R_SPARC_GNU_VTINHERIT 250 +#define R_SPARC_GNU_VTENTRY 251 +#define R_SPARC_REV32 252 +/* Keep this the last entry. */ +#define R_SPARC_NUM 253 + +/* For Sparc64, legal values for d_tag of Elf64_Dyn. */ + +#define DT_SPARC_REGISTER 0x70000001 +#define DT_SPARC_NUM 2 + +/* MIPS R3000 specific definitions. */ + +/* Legal values for e_flags field of Elf32_Ehdr. */ + +#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */ +#define EF_MIPS_PIC 2 /* Contains PIC code */ +#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */ +#define EF_MIPS_XGOT 8 +#define EF_MIPS_64BIT_WHIRL 16 +#define EF_MIPS_ABI2 32 +#define EF_MIPS_ABI_ON32 64 +#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ + +/* Legal values for MIPS architecture level. */ + +#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ +#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ +#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ +#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ +#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ +#define EF_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ +#define EF_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ + +/* The following are non-official names and should not be used. */ + +#define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ +#define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ +#define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ +#define E_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ +#define E_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ +#define E_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ +#define E_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ + +/* Special section indices. */ + +#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */ +#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */ +#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */ +#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ +#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ + +/* Legal values for sh_type field of Elf32_Shdr. */ + +#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */ +#define SHT_MIPS_MSYM 0x70000001 +#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */ +#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */ +#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */ +#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information*/ +#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */ +#define SHT_MIPS_PACKAGE 0x70000007 +#define SHT_MIPS_PACKSYM 0x70000008 +#define SHT_MIPS_RELD 0x70000009 +#define SHT_MIPS_IFACE 0x7000000b +#define SHT_MIPS_CONTENT 0x7000000c +#define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */ +#define SHT_MIPS_SHDR 0x70000010 +#define SHT_MIPS_FDESC 0x70000011 +#define SHT_MIPS_EXTSYM 0x70000012 +#define SHT_MIPS_DENSE 0x70000013 +#define SHT_MIPS_PDESC 0x70000014 +#define SHT_MIPS_LOCSYM 0x70000015 +#define SHT_MIPS_AUXSYM 0x70000016 +#define SHT_MIPS_OPTSYM 0x70000017 +#define SHT_MIPS_LOCSTR 0x70000018 +#define SHT_MIPS_LINE 0x70000019 +#define SHT_MIPS_RFDESC 0x7000001a +#define SHT_MIPS_DELTASYM 0x7000001b +#define SHT_MIPS_DELTAINST 0x7000001c +#define SHT_MIPS_DELTACLASS 0x7000001d +#define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */ +#define SHT_MIPS_DELTADECL 0x7000001f +#define SHT_MIPS_SYMBOL_LIB 0x70000020 +#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */ +#define SHT_MIPS_TRANSLATE 0x70000022 +#define SHT_MIPS_PIXIE 0x70000023 +#define SHT_MIPS_XLATE 0x70000024 +#define SHT_MIPS_XLATE_DEBUG 0x70000025 +#define SHT_MIPS_WHIRL 0x70000026 +#define SHT_MIPS_EH_REGION 0x70000027 +#define SHT_MIPS_XLATE_OLD 0x70000028 +#define SHT_MIPS_PDR_EXCEPTION 0x70000029 + +/* Legal values for sh_flags field of Elf32_Shdr. */ + +#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */ +#define SHF_MIPS_MERGE 0x20000000 +#define SHF_MIPS_ADDR 0x40000000 +#define SHF_MIPS_STRINGS 0x80000000 +#define SHF_MIPS_NOSTRIP 0x08000000 +#define SHF_MIPS_LOCAL 0x04000000 +#define SHF_MIPS_NAMES 0x02000000 +#define SHF_MIPS_NODUPE 0x01000000 + + +/* Symbol tables. */ + +/* MIPS specific values for `st_other'. */ +#define STO_MIPS_DEFAULT 0x0 +#define STO_MIPS_INTERNAL 0x1 +#define STO_MIPS_HIDDEN 0x2 +#define STO_MIPS_PROTECTED 0x3 +#define STO_MIPS_PLT 0x8 +#define STO_MIPS_SC_ALIGN_UNUSED 0xff + +/* MIPS specific values for `st_info'. */ +#define STB_MIPS_SPLIT_COMMON 13 + +/* Entries found in sections of type SHT_MIPS_GPTAB. */ + +typedef union +{ + struct + { + Elf32_Word gt_current_g_value; /* -G value used for compilation */ + Elf32_Word gt_unused; /* Not used */ + } gt_header; /* First entry in section */ + struct + { + Elf32_Word gt_g_value; /* If this value were used for -G */ + Elf32_Word gt_bytes; /* This many bytes would be used */ + } gt_entry; /* Subsequent entries in section */ +} Elf32_gptab; + +/* Entry found in sections of type SHT_MIPS_REGINFO. */ + +typedef struct +{ + Elf32_Word ri_gprmask; /* General registers used */ + Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */ + Elf32_Sword ri_gp_value; /* $gp register value */ +} Elf32_RegInfo; + +/* Entries found in sections of type SHT_MIPS_OPTIONS. */ + +typedef struct +{ + unsigned char kind; /* Determines interpretation of the + variable part of descriptor. */ + unsigned char size; /* Size of descriptor, including header. */ + Elf32_Section section; /* Section header index of section affected, + 0 for global options. */ + Elf32_Word info; /* Kind-specific information. */ +} Elf_Options; + +/* Values for `kind' field in Elf_Options. */ + +#define ODK_NULL 0 /* Undefined. */ +#define ODK_REGINFO 1 /* Register usage information. */ +#define ODK_EXCEPTIONS 2 /* Exception processing options. */ +#define ODK_PAD 3 /* Section padding options. */ +#define ODK_HWPATCH 4 /* Hardware workarounds performed */ +#define ODK_FILL 5 /* record the fill value used by the linker. */ +#define ODK_TAGS 6 /* reserve space for desktop tools to write. */ +#define ODK_HWAND 7 /* HW workarounds. 'AND' bits when merging. */ +#define ODK_HWOR 8 /* HW workarounds. 'OR' bits when merging. */ + +/* Values for `info' in Elf_Options for ODK_EXCEPTIONS entries. */ + +#define OEX_FPU_MIN 0x1f /* FPE's which MUST be enabled. */ +#define OEX_FPU_MAX 0x1f00 /* FPE's which MAY be enabled. */ +#define OEX_PAGE0 0x10000 /* page zero must be mapped. */ +#define OEX_SMM 0x20000 /* Force sequential memory mode? */ +#define OEX_FPDBUG 0x40000 /* Force floating point debug mode? */ +#define OEX_PRECISEFP OEX_FPDBUG +#define OEX_DISMISS 0x80000 /* Dismiss invalid address faults? */ + +#define OEX_FPU_INVAL 0x10 +#define OEX_FPU_DIV0 0x08 +#define OEX_FPU_OFLO 0x04 +#define OEX_FPU_UFLO 0x02 +#define OEX_FPU_INEX 0x01 + +/* Masks for `info' in Elf_Options for an ODK_HWPATCH entry. */ + +#define OHW_R4KEOP 0x1 /* R4000 end-of-page patch. */ +#define OHW_R8KPFETCH 0x2 /* may need R8000 prefetch patch. */ +#define OHW_R5KEOP 0x4 /* R5000 end-of-page patch. */ +#define OHW_R5KCVTL 0x8 /* R5000 cvt.[ds].l bug. clean=1. */ + +#define OPAD_PREFIX 0x1 +#define OPAD_POSTFIX 0x2 +#define OPAD_SYMBOL 0x4 + +/* Entry found in `.options' section. */ + +typedef struct +{ + Elf32_Word hwp_flags1; /* Extra flags. */ + Elf32_Word hwp_flags2; /* Extra flags. */ +} Elf_Options_Hw; + +/* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries. */ + +#define OHWA0_R4KEOP_CHECKED 0x00000001 +#define OHWA1_R4KEOP_CLEAN 0x00000002 + +/* MIPS relocs. */ + +#define R_MIPS_NONE 0 /* No reloc */ +#define R_MIPS_16 1 /* Direct 16 bit */ +#define R_MIPS_32 2 /* Direct 32 bit */ +#define R_MIPS_REL32 3 /* PC relative 32 bit */ +#define R_MIPS_26 4 /* Direct 26 bit shifted */ +#define R_MIPS_HI16 5 /* High 16 bit */ +#define R_MIPS_LO16 6 /* Low 16 bit */ +#define R_MIPS_GPREL16 7 /* GP relative 16 bit */ +#define R_MIPS_LITERAL 8 /* 16 bit literal entry */ +#define R_MIPS_GOT16 9 /* 16 bit GOT entry */ +#define R_MIPS_PC16 10 /* PC relative 16 bit */ +#define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */ +#define R_MIPS_GPREL32 12 /* GP relative 32 bit */ + +#define R_MIPS_SHIFT5 16 +#define R_MIPS_SHIFT6 17 +#define R_MIPS_64 18 +#define R_MIPS_GOT_DISP 19 +#define R_MIPS_GOT_PAGE 20 +#define R_MIPS_GOT_OFST 21 +#define R_MIPS_GOT_HI16 22 +#define R_MIPS_GOT_LO16 23 +#define R_MIPS_SUB 24 +#define R_MIPS_INSERT_A 25 +#define R_MIPS_INSERT_B 26 +#define R_MIPS_DELETE 27 +#define R_MIPS_HIGHER 28 +#define R_MIPS_HIGHEST 29 +#define R_MIPS_CALL_HI16 30 +#define R_MIPS_CALL_LO16 31 +#define R_MIPS_SCN_DISP 32 +#define R_MIPS_REL16 33 +#define R_MIPS_ADD_IMMEDIATE 34 +#define R_MIPS_PJUMP 35 +#define R_MIPS_RELGOT 36 +#define R_MIPS_JALR 37 +#define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */ +#define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */ +#define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */ +#define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */ +#define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */ +#define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */ +#define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */ +#define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */ +#define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */ +#define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */ +#define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */ +#define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */ +#define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */ +#define R_MIPS_GLOB_DAT 51 +#define R_MIPS_COPY 126 +#define R_MIPS_JUMP_SLOT 127 +/* Keep this the last entry. */ +#define R_MIPS_NUM 128 + +/* Legal values for p_type field of Elf32_Phdr. */ + +#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ +#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */ +#define PT_MIPS_OPTIONS 0x70000002 + +/* Special program header types. */ + +#define PF_MIPS_LOCAL 0x10000000 + +/* Legal values for d_tag field of Elf32_Dyn. */ + +#define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime linker interface version */ +#define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */ +#define DT_MIPS_ICHECKSUM 0x70000003 /* Checksum */ +#define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */ +#define DT_MIPS_FLAGS 0x70000005 /* Flags */ +#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */ +#define DT_MIPS_MSYM 0x70000007 +#define DT_MIPS_CONFLICT 0x70000008 /* Address of CONFLICT section */ +#define DT_MIPS_LIBLIST 0x70000009 /* Address of LIBLIST section */ +#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local GOT entries */ +#define DT_MIPS_CONFLICTNO 0x7000000b /* Number of CONFLICT entries */ +#define DT_MIPS_LIBLISTNO 0x70000010 /* Number of LIBLIST entries */ +#define DT_MIPS_SYMTABNO 0x70000011 /* Number of DYNSYM entries */ +#define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */ +#define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in DYNSYM */ +#define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */ +#define DT_MIPS_RLD_MAP 0x70000016 /* Address of run time loader map. */ +#define DT_MIPS_DELTA_CLASS 0x70000017 /* Delta C++ class definition. */ +#define DT_MIPS_DELTA_CLASS_NO 0x70000018 /* Number of entries in + DT_MIPS_DELTA_CLASS. */ +#define DT_MIPS_DELTA_INSTANCE 0x70000019 /* Delta C++ class instances. */ +#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a /* Number of entries in + DT_MIPS_DELTA_INSTANCE. */ +#define DT_MIPS_DELTA_RELOC 0x7000001b /* Delta relocations. */ +#define DT_MIPS_DELTA_RELOC_NO 0x7000001c /* Number of entries in + DT_MIPS_DELTA_RELOC. */ +#define DT_MIPS_DELTA_SYM 0x7000001d /* Delta symbols that Delta + relocations refer to. */ +#define DT_MIPS_DELTA_SYM_NO 0x7000001e /* Number of entries in + DT_MIPS_DELTA_SYM. */ +#define DT_MIPS_DELTA_CLASSSYM 0x70000020 /* Delta symbols that hold the + class declaration. */ +#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 /* Number of entries in + DT_MIPS_DELTA_CLASSSYM. */ +#define DT_MIPS_CXX_FLAGS 0x70000022 /* Flags indicating for C++ flavor. */ +#define DT_MIPS_PIXIE_INIT 0x70000023 +#define DT_MIPS_SYMBOL_LIB 0x70000024 +#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 +#define DT_MIPS_LOCAL_GOTIDX 0x70000026 +#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 +#define DT_MIPS_PROTECTED_GOTIDX 0x70000028 +#define DT_MIPS_OPTIONS 0x70000029 /* Address of .options. */ +#define DT_MIPS_INTERFACE 0x7000002a /* Address of .interface. */ +#define DT_MIPS_DYNSTR_ALIGN 0x7000002b +#define DT_MIPS_INTERFACE_SIZE 0x7000002c /* Size of the .interface section. */ +#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d /* Address of rld_text_rsolve + function stored in GOT. */ +#define DT_MIPS_PERF_SUFFIX 0x7000002e /* Default suffix of dso to be added + by rld on dlopen() calls. */ +#define DT_MIPS_COMPACT_SIZE 0x7000002f /* (O32)Size of compact rel section. */ +#define DT_MIPS_GP_VALUE 0x70000030 /* GP value for aux GOTs. */ +#define DT_MIPS_AUX_DYNAMIC 0x70000031 /* Address of aux .dynamic. */ +/* The address of .got.plt in an executable using the new non-PIC ABI. */ +#define DT_MIPS_PLTGOT 0x70000032 +/* The base of the PLT in an executable using the new non-PIC ABI if that + PLT is writable. For a non-writable PLT, this is omitted or has a zero + value. */ +#define DT_MIPS_RWPLT 0x70000034 +#define DT_MIPS_NUM 0x35 + +/* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */ + +#define RHF_NONE 0 /* No flags */ +#define RHF_QUICKSTART (1 << 0) /* Use quickstart */ +#define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */ +#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */ +#define RHF_NO_MOVE (1 << 3) +#define RHF_SGI_ONLY (1 << 4) +#define RHF_GUARANTEE_INIT (1 << 5) +#define RHF_DELTA_C_PLUS_PLUS (1 << 6) +#define RHF_GUARANTEE_START_INIT (1 << 7) +#define RHF_PIXIE (1 << 8) +#define RHF_DEFAULT_DELAY_LOAD (1 << 9) +#define RHF_REQUICKSTART (1 << 10) +#define RHF_REQUICKSTARTED (1 << 11) +#define RHF_CORD (1 << 12) +#define RHF_NO_UNRES_UNDEF (1 << 13) +#define RHF_RLD_ORDER_SAFE (1 << 14) + +/* Entries found in sections of type SHT_MIPS_LIBLIST. */ + +typedef struct +{ + Elf32_Word l_name; /* Name (string table index) */ + Elf32_Word l_time_stamp; /* Timestamp */ + Elf32_Word l_checksum; /* Checksum */ + Elf32_Word l_version; /* Interface version */ + Elf32_Word l_flags; /* Flags */ +} Elf32_Lib; + +typedef struct +{ + Elf64_Word l_name; /* Name (string table index) */ + Elf64_Word l_time_stamp; /* Timestamp */ + Elf64_Word l_checksum; /* Checksum */ + Elf64_Word l_version; /* Interface version */ + Elf64_Word l_flags; /* Flags */ +} Elf64_Lib; + + +/* Legal values for l_flags. */ + +#define LL_NONE 0 +#define LL_EXACT_MATCH (1 << 0) /* Require exact match */ +#define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */ +#define LL_REQUIRE_MINOR (1 << 2) +#define LL_EXPORTS (1 << 3) +#define LL_DELAY_LOAD (1 << 4) +#define LL_DELTA (1 << 5) + +/* Entries found in sections of type SHT_MIPS_CONFLICT. */ + +typedef Elf32_Addr Elf32_Conflict; + + +/* HPPA specific definitions. */ + +/* Legal values for e_flags field of Elf32_Ehdr. */ + +#define EF_PARISC_TRAPNIL 0x00010000 /* Trap nil pointer dereference. */ +#define EF_PARISC_EXT 0x00020000 /* Program uses arch. extensions. */ +#define EF_PARISC_LSB 0x00040000 /* Program expects little endian. */ +#define EF_PARISC_WIDE 0x00080000 /* Program expects wide mode. */ +#define EF_PARISC_NO_KABP 0x00100000 /* No kernel assisted branch + prediction. */ +#define EF_PARISC_LAZYSWAP 0x00400000 /* Allow lazy swapping. */ +#define EF_PARISC_ARCH 0x0000ffff /* Architecture version. */ + +/* Defined values for `e_flags & EF_PARISC_ARCH' are: */ + +#define EFA_PARISC_1_0 0x020b /* PA-RISC 1.0 big-endian. */ +#define EFA_PARISC_1_1 0x0210 /* PA-RISC 1.1 big-endian. */ +#define EFA_PARISC_2_0 0x0214 /* PA-RISC 2.0 big-endian. */ + +/* Additional section indeces. */ + +#define SHN_PARISC_ANSI_COMMON 0xff00 /* Section for tenatively declared + symbols in ANSI C. */ +#define SHN_PARISC_HUGE_COMMON 0xff01 /* Common blocks in huge model. */ + +/* Legal values for sh_type field of Elf32_Shdr. */ + +#define SHT_PARISC_EXT 0x70000000 /* Contains product specific ext. */ +#define SHT_PARISC_UNWIND 0x70000001 /* Unwind information. */ +#define SHT_PARISC_DOC 0x70000002 /* Debug info for optimized code. */ + +/* Legal values for sh_flags field of Elf32_Shdr. */ + +#define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */ +#define SHF_PARISC_HUGE 0x40000000 /* Section far from gp. */ +#define SHF_PARISC_SBP 0x80000000 /* Static branch prediction code. */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */ + +#define STT_HP_OPAQUE (STT_LOOS + 0x1) +#define STT_HP_STUB (STT_LOOS + 0x2) + +/* HPPA relocs. */ + +#define R_PARISC_NONE 0 /* No reloc. */ +#define R_PARISC_DIR32 1 /* Direct 32-bit reference. */ +#define R_PARISC_DIR21L 2 /* Left 21 bits of eff. address. */ +#define R_PARISC_DIR17R 3 /* Right 17 bits of eff. address. */ +#define R_PARISC_DIR17F 4 /* 17 bits of eff. address. */ +#define R_PARISC_DIR14R 6 /* Right 14 bits of eff. address. */ +#define R_PARISC_PCREL32 9 /* 32-bit rel. address. */ +#define R_PARISC_PCREL21L 10 /* Left 21 bits of rel. address. */ +#define R_PARISC_PCREL17R 11 /* Right 17 bits of rel. address. */ +#define R_PARISC_PCREL17F 12 /* 17 bits of rel. address. */ +#define R_PARISC_PCREL14R 14 /* Right 14 bits of rel. address. */ +#define R_PARISC_DPREL21L 18 /* Left 21 bits of rel. address. */ +#define R_PARISC_DPREL14R 22 /* Right 14 bits of rel. address. */ +#define R_PARISC_GPREL21L 26 /* GP-relative, left 21 bits. */ +#define R_PARISC_GPREL14R 30 /* GP-relative, right 14 bits. */ +#define R_PARISC_LTOFF21L 34 /* LT-relative, left 21 bits. */ +#define R_PARISC_LTOFF14R 38 /* LT-relative, right 14 bits. */ +#define R_PARISC_SECREL32 41 /* 32 bits section rel. address. */ +#define R_PARISC_SEGBASE 48 /* No relocation, set segment base. */ +#define R_PARISC_SEGREL32 49 /* 32 bits segment rel. address. */ +#define R_PARISC_PLTOFF21L 50 /* PLT rel. address, left 21 bits. */ +#define R_PARISC_PLTOFF14R 54 /* PLT rel. address, right 14 bits. */ +#define R_PARISC_LTOFF_FPTR32 57 /* 32 bits LT-rel. function pointer. */ +#define R_PARISC_LTOFF_FPTR21L 58 /* LT-rel. fct ptr, left 21 bits. */ +#define R_PARISC_LTOFF_FPTR14R 62 /* LT-rel. fct ptr, right 14 bits. */ +#define R_PARISC_FPTR64 64 /* 64 bits function address. */ +#define R_PARISC_PLABEL32 65 /* 32 bits function address. */ +#define R_PARISC_PLABEL21L 66 /* Left 21 bits of fdesc address. */ +#define R_PARISC_PLABEL14R 70 /* Right 14 bits of fdesc address. */ +#define R_PARISC_PCREL64 72 /* 64 bits PC-rel. address. */ +#define R_PARISC_PCREL22F 74 /* 22 bits PC-rel. address. */ +#define R_PARISC_PCREL14WR 75 /* PC-rel. address, right 14 bits. */ +#define R_PARISC_PCREL14DR 76 /* PC rel. address, right 14 bits. */ +#define R_PARISC_PCREL16F 77 /* 16 bits PC-rel. address. */ +#define R_PARISC_PCREL16WF 78 /* 16 bits PC-rel. address. */ +#define R_PARISC_PCREL16DF 79 /* 16 bits PC-rel. address. */ +#define R_PARISC_DIR64 80 /* 64 bits of eff. address. */ +#define R_PARISC_DIR14WR 83 /* 14 bits of eff. address. */ +#define R_PARISC_DIR14DR 84 /* 14 bits of eff. address. */ +#define R_PARISC_DIR16F 85 /* 16 bits of eff. address. */ +#define R_PARISC_DIR16WF 86 /* 16 bits of eff. address. */ +#define R_PARISC_DIR16DF 87 /* 16 bits of eff. address. */ +#define R_PARISC_GPREL64 88 /* 64 bits of GP-rel. address. */ +#define R_PARISC_GPREL14WR 91 /* GP-rel. address, right 14 bits. */ +#define R_PARISC_GPREL14DR 92 /* GP-rel. address, right 14 bits. */ +#define R_PARISC_GPREL16F 93 /* 16 bits GP-rel. address. */ +#define R_PARISC_GPREL16WF 94 /* 16 bits GP-rel. address. */ +#define R_PARISC_GPREL16DF 95 /* 16 bits GP-rel. address. */ +#define R_PARISC_LTOFF64 96 /* 64 bits LT-rel. address. */ +#define R_PARISC_LTOFF14WR 99 /* LT-rel. address, right 14 bits. */ +#define R_PARISC_LTOFF14DR 100 /* LT-rel. address, right 14 bits. */ +#define R_PARISC_LTOFF16F 101 /* 16 bits LT-rel. address. */ +#define R_PARISC_LTOFF16WF 102 /* 16 bits LT-rel. address. */ +#define R_PARISC_LTOFF16DF 103 /* 16 bits LT-rel. address. */ +#define R_PARISC_SECREL64 104 /* 64 bits section rel. address. */ +#define R_PARISC_SEGREL64 112 /* 64 bits segment rel. address. */ +#define R_PARISC_PLTOFF14WR 115 /* PLT-rel. address, right 14 bits. */ +#define R_PARISC_PLTOFF14DR 116 /* PLT-rel. address, right 14 bits. */ +#define R_PARISC_PLTOFF16F 117 /* 16 bits LT-rel. address. */ +#define R_PARISC_PLTOFF16WF 118 /* 16 bits PLT-rel. address. */ +#define R_PARISC_PLTOFF16DF 119 /* 16 bits PLT-rel. address. */ +#define R_PARISC_LTOFF_FPTR64 120 /* 64 bits LT-rel. function ptr. */ +#define R_PARISC_LTOFF_FPTR14WR 123 /* LT-rel. fct. ptr., right 14 bits. */ +#define R_PARISC_LTOFF_FPTR14DR 124 /* LT-rel. fct. ptr., right 14 bits. */ +#define R_PARISC_LTOFF_FPTR16F 125 /* 16 bits LT-rel. function ptr. */ +#define R_PARISC_LTOFF_FPTR16WF 126 /* 16 bits LT-rel. function ptr. */ +#define R_PARISC_LTOFF_FPTR16DF 127 /* 16 bits LT-rel. function ptr. */ +#define R_PARISC_LORESERVE 128 +#define R_PARISC_COPY 128 /* Copy relocation. */ +#define R_PARISC_IPLT 129 /* Dynamic reloc, imported PLT */ +#define R_PARISC_EPLT 130 /* Dynamic reloc, exported PLT */ +#define R_PARISC_TPREL32 153 /* 32 bits TP-rel. address. */ +#define R_PARISC_TPREL21L 154 /* TP-rel. address, left 21 bits. */ +#define R_PARISC_TPREL14R 158 /* TP-rel. address, right 14 bits. */ +#define R_PARISC_LTOFF_TP21L 162 /* LT-TP-rel. address, left 21 bits. */ +#define R_PARISC_LTOFF_TP14R 166 /* LT-TP-rel. address, right 14 bits.*/ +#define R_PARISC_LTOFF_TP14F 167 /* 14 bits LT-TP-rel. address. */ +#define R_PARISC_TPREL64 216 /* 64 bits TP-rel. address. */ +#define R_PARISC_TPREL14WR 219 /* TP-rel. address, right 14 bits. */ +#define R_PARISC_TPREL14DR 220 /* TP-rel. address, right 14 bits. */ +#define R_PARISC_TPREL16F 221 /* 16 bits TP-rel. address. */ +#define R_PARISC_TPREL16WF 222 /* 16 bits TP-rel. address. */ +#define R_PARISC_TPREL16DF 223 /* 16 bits TP-rel. address. */ +#define R_PARISC_LTOFF_TP64 224 /* 64 bits LT-TP-rel. address. */ +#define R_PARISC_LTOFF_TP14WR 227 /* LT-TP-rel. address, right 14 bits.*/ +#define R_PARISC_LTOFF_TP14DR 228 /* LT-TP-rel. address, right 14 bits.*/ +#define R_PARISC_LTOFF_TP16F 229 /* 16 bits LT-TP-rel. address. */ +#define R_PARISC_LTOFF_TP16WF 230 /* 16 bits LT-TP-rel. address. */ +#define R_PARISC_LTOFF_TP16DF 231 /* 16 bits LT-TP-rel. address. */ +#define R_PARISC_GNU_VTENTRY 232 +#define R_PARISC_GNU_VTINHERIT 233 +#define R_PARISC_TLS_GD21L 234 /* GD 21-bit left. */ +#define R_PARISC_TLS_GD14R 235 /* GD 14-bit right. */ +#define R_PARISC_TLS_GDCALL 236 /* GD call to __t_g_a. */ +#define R_PARISC_TLS_LDM21L 237 /* LD module 21-bit left. */ +#define R_PARISC_TLS_LDM14R 238 /* LD module 14-bit right. */ +#define R_PARISC_TLS_LDMCALL 239 /* LD module call to __t_g_a. */ +#define R_PARISC_TLS_LDO21L 240 /* LD offset 21-bit left. */ +#define R_PARISC_TLS_LDO14R 241 /* LD offset 14-bit right. */ +#define R_PARISC_TLS_DTPMOD32 242 /* DTP module 32-bit. */ +#define R_PARISC_TLS_DTPMOD64 243 /* DTP module 64-bit. */ +#define R_PARISC_TLS_DTPOFF32 244 /* DTP offset 32-bit. */ +#define R_PARISC_TLS_DTPOFF64 245 /* DTP offset 32-bit. */ +#define R_PARISC_TLS_LE21L R_PARISC_TPREL21L +#define R_PARISC_TLS_LE14R R_PARISC_TPREL14R +#define R_PARISC_TLS_IE21L R_PARISC_LTOFF_TP21L +#define R_PARISC_TLS_IE14R R_PARISC_LTOFF_TP14R +#define R_PARISC_TLS_TPREL32 R_PARISC_TPREL32 +#define R_PARISC_TLS_TPREL64 R_PARISC_TPREL64 +#define R_PARISC_HIRESERVE 255 + +/* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr. */ + +#define PT_HP_TLS (PT_LOOS + 0x0) +#define PT_HP_CORE_NONE (PT_LOOS + 0x1) +#define PT_HP_CORE_VERSION (PT_LOOS + 0x2) +#define PT_HP_CORE_KERNEL (PT_LOOS + 0x3) +#define PT_HP_CORE_COMM (PT_LOOS + 0x4) +#define PT_HP_CORE_PROC (PT_LOOS + 0x5) +#define PT_HP_CORE_LOADABLE (PT_LOOS + 0x6) +#define PT_HP_CORE_STACK (PT_LOOS + 0x7) +#define PT_HP_CORE_SHM (PT_LOOS + 0x8) +#define PT_HP_CORE_MMF (PT_LOOS + 0x9) +#define PT_HP_PARALLEL (PT_LOOS + 0x10) +#define PT_HP_FASTBIND (PT_LOOS + 0x11) +#define PT_HP_OPT_ANNOT (PT_LOOS + 0x12) +#define PT_HP_HSL_ANNOT (PT_LOOS + 0x13) +#define PT_HP_STACK (PT_LOOS + 0x14) + +#define PT_PARISC_ARCHEXT 0x70000000 +#define PT_PARISC_UNWIND 0x70000001 + +/* Legal values for p_flags field of Elf32_Phdr/Elf64_Phdr. */ + +#define PF_PARISC_SBP 0x08000000 + +#define PF_HP_PAGE_SIZE 0x00100000 +#define PF_HP_FAR_SHARED 0x00200000 +#define PF_HP_NEAR_SHARED 0x00400000 +#define PF_HP_CODE 0x01000000 +#define PF_HP_MODIFY 0x02000000 +#define PF_HP_LAZYSWAP 0x04000000 +#define PF_HP_SBP 0x08000000 + + +/* Alpha specific definitions. */ + +/* Legal values for e_flags field of Elf64_Ehdr. */ + +#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */ +#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */ + +/* Legal values for sh_type field of Elf64_Shdr. */ + +/* These two are primerily concerned with ECOFF debugging info. */ +#define SHT_ALPHA_DEBUG 0x70000001 +#define SHT_ALPHA_REGINFO 0x70000002 + +/* Legal values for sh_flags field of Elf64_Shdr. */ + +#define SHF_ALPHA_GPREL 0x10000000 + +/* Legal values for st_other field of Elf64_Sym. */ +#define STO_ALPHA_NOPV 0x80 /* No PV required. */ +#define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */ + +/* Alpha relocs. */ + +#define R_ALPHA_NONE 0 /* No reloc */ +#define R_ALPHA_REFLONG 1 /* Direct 32 bit */ +#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ +#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ +#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ +#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ +#define R_ALPHA_GPDISP 6 /* Add displacement to GP */ +#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ +#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ +#define R_ALPHA_SREL16 9 /* PC relative 16 bit */ +#define R_ALPHA_SREL32 10 /* PC relative 32 bit */ +#define R_ALPHA_SREL64 11 /* PC relative 64 bit */ +#define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */ +#define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */ +#define R_ALPHA_GPREL16 19 /* GP relative 16 bit */ +#define R_ALPHA_COPY 24 /* Copy symbol at runtime */ +#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ +#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ +#define R_ALPHA_RELATIVE 27 /* Adjust by program base */ +#define R_ALPHA_TLS_GD_HI 28 +#define R_ALPHA_TLSGD 29 +#define R_ALPHA_TLS_LDM 30 +#define R_ALPHA_DTPMOD64 31 +#define R_ALPHA_GOTDTPREL 32 +#define R_ALPHA_DTPREL64 33 +#define R_ALPHA_DTPRELHI 34 +#define R_ALPHA_DTPRELLO 35 +#define R_ALPHA_DTPREL16 36 +#define R_ALPHA_GOTTPREL 37 +#define R_ALPHA_TPREL64 38 +#define R_ALPHA_TPRELHI 39 +#define R_ALPHA_TPRELLO 40 +#define R_ALPHA_TPREL16 41 +/* Keep this the last entry. */ +#define R_ALPHA_NUM 46 + +/* Magic values of the LITUSE relocation addend. */ +#define LITUSE_ALPHA_ADDR 0 +#define LITUSE_ALPHA_BASE 1 +#define LITUSE_ALPHA_BYTOFF 2 +#define LITUSE_ALPHA_JSR 3 +#define LITUSE_ALPHA_TLS_GD 4 +#define LITUSE_ALPHA_TLS_LDM 5 + +/* Legal values for d_tag of Elf64_Dyn. */ +#define DT_ALPHA_PLTRO (DT_LOPROC + 0) +#define DT_ALPHA_NUM 1 + +/* PowerPC specific declarations */ + +/* Values for Elf32/64_Ehdr.e_flags. */ +#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */ + +/* Cygnus local bits below */ +#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/ +#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib + flag */ + +/* PowerPC relocations defined by the ABIs */ +#define R_PPC_NONE 0 +#define R_PPC_ADDR32 1 /* 32bit absolute address */ +#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ +#define R_PPC_ADDR16 3 /* 16bit absolute address */ +#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ +#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ +#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ +#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ +#define R_PPC_ADDR14_BRTAKEN 8 +#define R_PPC_ADDR14_BRNTAKEN 9 +#define R_PPC_REL24 10 /* PC relative 26 bit */ +#define R_PPC_REL14 11 /* PC relative 16 bit */ +#define R_PPC_REL14_BRTAKEN 12 +#define R_PPC_REL14_BRNTAKEN 13 +#define R_PPC_GOT16 14 +#define R_PPC_GOT16_LO 15 +#define R_PPC_GOT16_HI 16 +#define R_PPC_GOT16_HA 17 +#define R_PPC_PLTREL24 18 +#define R_PPC_COPY 19 +#define R_PPC_GLOB_DAT 20 +#define R_PPC_JMP_SLOT 21 +#define R_PPC_RELATIVE 22 +#define R_PPC_LOCAL24PC 23 +#define R_PPC_UADDR32 24 +#define R_PPC_UADDR16 25 +#define R_PPC_REL32 26 +#define R_PPC_PLT32 27 +#define R_PPC_PLTREL32 28 +#define R_PPC_PLT16_LO 29 +#define R_PPC_PLT16_HI 30 +#define R_PPC_PLT16_HA 31 +#define R_PPC_SDAREL16 32 +#define R_PPC_SECTOFF 33 +#define R_PPC_SECTOFF_LO 34 +#define R_PPC_SECTOFF_HI 35 +#define R_PPC_SECTOFF_HA 36 + +/* PowerPC relocations defined for the TLS access ABI. */ +#define R_PPC_TLS 67 /* none (sym+add)@tls */ +#define R_PPC_DTPMOD32 68 /* word32 (sym+add)@dtpmod */ +#define R_PPC_TPREL16 69 /* half16* (sym+add)@tprel */ +#define R_PPC_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ +#define R_PPC_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ +#define R_PPC_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ +#define R_PPC_TPREL32 73 /* word32 (sym+add)@tprel */ +#define R_PPC_DTPREL16 74 /* half16* (sym+add)@dtprel */ +#define R_PPC_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ +#define R_PPC_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ +#define R_PPC_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ +#define R_PPC_DTPREL32 78 /* word32 (sym+add)@dtprel */ +#define R_PPC_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ +#define R_PPC_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ +#define R_PPC_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ +#define R_PPC_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ +#define R_PPC_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ +#define R_PPC_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ +#define R_PPC_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ +#define R_PPC_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ +#define R_PPC_GOT_TPREL16 87 /* half16* (sym+add)@got@tprel */ +#define R_PPC_GOT_TPREL16_LO 88 /* half16 (sym+add)@got@tprel@l */ +#define R_PPC_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ +#define R_PPC_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ +#define R_PPC_GOT_DTPREL16 91 /* half16* (sym+add)@got@dtprel */ +#define R_PPC_GOT_DTPREL16_LO 92 /* half16* (sym+add)@got@dtprel@l */ +#define R_PPC_GOT_DTPREL16_HI 93 /* half16* (sym+add)@got@dtprel@h */ +#define R_PPC_GOT_DTPREL16_HA 94 /* half16* (sym+add)@got@dtprel@ha */ + +/* The remaining relocs are from the Embedded ELF ABI, and are not + in the SVR4 ELF ABI. */ +#define R_PPC_EMB_NADDR32 101 +#define R_PPC_EMB_NADDR16 102 +#define R_PPC_EMB_NADDR16_LO 103 +#define R_PPC_EMB_NADDR16_HI 104 +#define R_PPC_EMB_NADDR16_HA 105 +#define R_PPC_EMB_SDAI16 106 +#define R_PPC_EMB_SDA2I16 107 +#define R_PPC_EMB_SDA2REL 108 +#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */ +#define R_PPC_EMB_MRKREF 110 +#define R_PPC_EMB_RELSEC16 111 +#define R_PPC_EMB_RELST_LO 112 +#define R_PPC_EMB_RELST_HI 113 +#define R_PPC_EMB_RELST_HA 114 +#define R_PPC_EMB_BIT_FLD 115 +#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */ + +/* Diab tool relocations. */ +#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */ +#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */ +#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */ +#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */ +#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */ +#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */ + +/* GNU extension to support local ifunc. */ +#define R_PPC_IRELATIVE 248 + +/* GNU relocs used in PIC code sequences. */ +#define R_PPC_REL16 249 /* half16 (sym+add-.) */ +#define R_PPC_REL16_LO 250 /* half16 (sym+add-.)@l */ +#define R_PPC_REL16_HI 251 /* half16 (sym+add-.)@h */ +#define R_PPC_REL16_HA 252 /* half16 (sym+add-.)@ha */ + +/* This is a phony reloc to handle any old fashioned TOC16 references + that may still be in object files. */ +#define R_PPC_TOC16 255 + +/* PowerPC specific values for the Dyn d_tag field. */ +#define DT_PPC_GOT (DT_LOPROC + 0) +#define DT_PPC_NUM 1 + +/* PowerPC64 relocations defined by the ABIs */ +#define R_PPC64_NONE R_PPC_NONE +#define R_PPC64_ADDR32 R_PPC_ADDR32 /* 32bit absolute address */ +#define R_PPC64_ADDR24 R_PPC_ADDR24 /* 26bit address, word aligned */ +#define R_PPC64_ADDR16 R_PPC_ADDR16 /* 16bit absolute address */ +#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO /* lower 16bits of address */ +#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI /* high 16bits of address. */ +#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA /* adjusted high 16bits. */ +#define R_PPC64_ADDR14 R_PPC_ADDR14 /* 16bit address, word aligned */ +#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN +#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN +#define R_PPC64_REL24 R_PPC_REL24 /* PC-rel. 26 bit, word aligned */ +#define R_PPC64_REL14 R_PPC_REL14 /* PC relative 16 bit */ +#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN +#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN +#define R_PPC64_GOT16 R_PPC_GOT16 +#define R_PPC64_GOT16_LO R_PPC_GOT16_LO +#define R_PPC64_GOT16_HI R_PPC_GOT16_HI +#define R_PPC64_GOT16_HA R_PPC_GOT16_HA + +#define R_PPC64_COPY R_PPC_COPY +#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT +#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT +#define R_PPC64_RELATIVE R_PPC_RELATIVE + +#define R_PPC64_UADDR32 R_PPC_UADDR32 +#define R_PPC64_UADDR16 R_PPC_UADDR16 +#define R_PPC64_REL32 R_PPC_REL32 +#define R_PPC64_PLT32 R_PPC_PLT32 +#define R_PPC64_PLTREL32 R_PPC_PLTREL32 +#define R_PPC64_PLT16_LO R_PPC_PLT16_LO +#define R_PPC64_PLT16_HI R_PPC_PLT16_HI +#define R_PPC64_PLT16_HA R_PPC_PLT16_HA + +#define R_PPC64_SECTOFF R_PPC_SECTOFF +#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO +#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI +#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA +#define R_PPC64_ADDR30 37 /* word30 (S + A - P) >> 2 */ +#define R_PPC64_ADDR64 38 /* doubleword64 S + A */ +#define R_PPC64_ADDR16_HIGHER 39 /* half16 #higher(S + A) */ +#define R_PPC64_ADDR16_HIGHERA 40 /* half16 #highera(S + A) */ +#define R_PPC64_ADDR16_HIGHEST 41 /* half16 #highest(S + A) */ +#define R_PPC64_ADDR16_HIGHESTA 42 /* half16 #highesta(S + A) */ +#define R_PPC64_UADDR64 43 /* doubleword64 S + A */ +#define R_PPC64_REL64 44 /* doubleword64 S + A - P */ +#define R_PPC64_PLT64 45 /* doubleword64 L + A */ +#define R_PPC64_PLTREL64 46 /* doubleword64 L + A - P */ +#define R_PPC64_TOC16 47 /* half16* S + A - .TOC */ +#define R_PPC64_TOC16_LO 48 /* half16 #lo(S + A - .TOC.) */ +#define R_PPC64_TOC16_HI 49 /* half16 #hi(S + A - .TOC.) */ +#define R_PPC64_TOC16_HA 50 /* half16 #ha(S + A - .TOC.) */ +#define R_PPC64_TOC 51 /* doubleword64 .TOC */ +#define R_PPC64_PLTGOT16 52 /* half16* M + A */ +#define R_PPC64_PLTGOT16_LO 53 /* half16 #lo(M + A) */ +#define R_PPC64_PLTGOT16_HI 54 /* half16 #hi(M + A) */ +#define R_PPC64_PLTGOT16_HA 55 /* half16 #ha(M + A) */ + +#define R_PPC64_ADDR16_DS 56 /* half16ds* (S + A) >> 2 */ +#define R_PPC64_ADDR16_LO_DS 57 /* half16ds #lo(S + A) >> 2 */ +#define R_PPC64_GOT16_DS 58 /* half16ds* (G + A) >> 2 */ +#define R_PPC64_GOT16_LO_DS 59 /* half16ds #lo(G + A) >> 2 */ +#define R_PPC64_PLT16_LO_DS 60 /* half16ds #lo(L + A) >> 2 */ +#define R_PPC64_SECTOFF_DS 61 /* half16ds* (R + A) >> 2 */ +#define R_PPC64_SECTOFF_LO_DS 62 /* half16ds #lo(R + A) >> 2 */ +#define R_PPC64_TOC16_DS 63 /* half16ds* (S + A - .TOC.) >> 2 */ +#define R_PPC64_TOC16_LO_DS 64 /* half16ds #lo(S + A - .TOC.) >> 2 */ +#define R_PPC64_PLTGOT16_DS 65 /* half16ds* (M + A) >> 2 */ +#define R_PPC64_PLTGOT16_LO_DS 66 /* half16ds #lo(M + A) >> 2 */ + +/* PowerPC64 relocations defined for the TLS access ABI. */ +#define R_PPC64_TLS 67 /* none (sym+add)@tls */ +#define R_PPC64_DTPMOD64 68 /* doubleword64 (sym+add)@dtpmod */ +#define R_PPC64_TPREL16 69 /* half16* (sym+add)@tprel */ +#define R_PPC64_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ +#define R_PPC64_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ +#define R_PPC64_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ +#define R_PPC64_TPREL64 73 /* doubleword64 (sym+add)@tprel */ +#define R_PPC64_DTPREL16 74 /* half16* (sym+add)@dtprel */ +#define R_PPC64_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ +#define R_PPC64_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ +#define R_PPC64_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ +#define R_PPC64_DTPREL64 78 /* doubleword64 (sym+add)@dtprel */ +#define R_PPC64_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ +#define R_PPC64_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ +#define R_PPC64_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ +#define R_PPC64_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ +#define R_PPC64_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ +#define R_PPC64_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ +#define R_PPC64_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ +#define R_PPC64_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ +#define R_PPC64_GOT_TPREL16_DS 87 /* half16ds* (sym+add)@got@tprel */ +#define R_PPC64_GOT_TPREL16_LO_DS 88 /* half16ds (sym+add)@got@tprel@l */ +#define R_PPC64_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ +#define R_PPC64_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ +#define R_PPC64_GOT_DTPREL16_DS 91 /* half16ds* (sym+add)@got@dtprel */ +#define R_PPC64_GOT_DTPREL16_LO_DS 92 /* half16ds (sym+add)@got@dtprel@l */ +#define R_PPC64_GOT_DTPREL16_HI 93 /* half16 (sym+add)@got@dtprel@h */ +#define R_PPC64_GOT_DTPREL16_HA 94 /* half16 (sym+add)@got@dtprel@ha */ +#define R_PPC64_TPREL16_DS 95 /* half16ds* (sym+add)@tprel */ +#define R_PPC64_TPREL16_LO_DS 96 /* half16ds (sym+add)@tprel@l */ +#define R_PPC64_TPREL16_HIGHER 97 /* half16 (sym+add)@tprel@higher */ +#define R_PPC64_TPREL16_HIGHERA 98 /* half16 (sym+add)@tprel@highera */ +#define R_PPC64_TPREL16_HIGHEST 99 /* half16 (sym+add)@tprel@highest */ +#define R_PPC64_TPREL16_HIGHESTA 100 /* half16 (sym+add)@tprel@highesta */ +#define R_PPC64_DTPREL16_DS 101 /* half16ds* (sym+add)@dtprel */ +#define R_PPC64_DTPREL16_LO_DS 102 /* half16ds (sym+add)@dtprel@l */ +#define R_PPC64_DTPREL16_HIGHER 103 /* half16 (sym+add)@dtprel@higher */ +#define R_PPC64_DTPREL16_HIGHERA 104 /* half16 (sym+add)@dtprel@highera */ +#define R_PPC64_DTPREL16_HIGHEST 105 /* half16 (sym+add)@dtprel@highest */ +#define R_PPC64_DTPREL16_HIGHESTA 106 /* half16 (sym+add)@dtprel@highesta */ + +/* GNU extension to support local ifunc. */ +#define R_PPC64_JMP_IREL 247 +#define R_PPC64_IRELATIVE 248 +#define R_PPC64_REL16 249 /* half16 (sym+add-.) */ +#define R_PPC64_REL16_LO 250 /* half16 (sym+add-.)@l */ +#define R_PPC64_REL16_HI 251 /* half16 (sym+add-.)@h */ +#define R_PPC64_REL16_HA 252 /* half16 (sym+add-.)@ha */ + +/* PowerPC64 specific values for the Dyn d_tag field. */ +#define DT_PPC64_GLINK (DT_LOPROC + 0) +#define DT_PPC64_OPD (DT_LOPROC + 1) +#define DT_PPC64_OPDSZ (DT_LOPROC + 2) +#define DT_PPC64_NUM 3 + + +/* ARM specific declarations */ + +/* Processor specific flags for the ELF header e_flags field. */ +#define EF_ARM_RELEXEC 0x01 +#define EF_ARM_HASENTRY 0x02 +#define EF_ARM_INTERWORK 0x04 +#define EF_ARM_APCS_26 0x08 +#define EF_ARM_APCS_FLOAT 0x10 +#define EF_ARM_PIC 0x20 +#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */ +#define EF_ARM_NEW_ABI 0x80 +#define EF_ARM_OLD_ABI 0x100 +#define EF_ARM_SOFT_FLOAT 0x200 +#define EF_ARM_VFP_FLOAT 0x400 +#define EF_ARM_MAVERICK_FLOAT 0x800 + +#define EF_ARM_ABI_FLOAT_SOFT 0x200 /* NB conflicts with EF_ARM_SOFT_FLOAT */ +#define EF_ARM_ABI_FLOAT_HARD 0x400 /* NB conflicts with EF_ARM_VFP_FLOAT */ + + +/* Other constants defined in the ARM ELF spec. version B-01. */ +/* NB. These conflict with values defined above. */ +#define EF_ARM_SYMSARESORTED 0x04 +#define EF_ARM_DYNSYMSUSESEGIDX 0x08 +#define EF_ARM_MAPSYMSFIRST 0x10 +#define EF_ARM_EABIMASK 0XFF000000 + +/* Constants defined in AAELF. */ +#define EF_ARM_BE8 0x00800000 +#define EF_ARM_LE8 0x00400000 + +#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) +#define EF_ARM_EABI_UNKNOWN 0x00000000 +#define EF_ARM_EABI_VER1 0x01000000 +#define EF_ARM_EABI_VER2 0x02000000 +#define EF_ARM_EABI_VER3 0x03000000 +#define EF_ARM_EABI_VER4 0x04000000 +#define EF_ARM_EABI_VER5 0x05000000 + +/* Additional symbol types for Thumb. */ +#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */ +#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */ + +/* ARM-specific values for sh_flags */ +#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */ +#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined + in the input to a link step. */ + +/* ARM-specific program header flags */ +#define PF_ARM_SB 0x10000000 /* Segment contains the location + addressed by the static base. */ +#define PF_ARM_PI 0x20000000 /* Position-independent segment. */ +#define PF_ARM_ABS 0x40000000 /* Absolute segment. */ + +/* Processor specific values for the Phdr p_type field. */ +#define PT_ARM_EXIDX (PT_LOPROC + 1) /* ARM unwind segment. */ + +/* Processor specific values for the Shdr sh_type field. */ +#define SHT_ARM_EXIDX (SHT_LOPROC + 1) /* ARM unwind section. */ +#define SHT_ARM_PREEMPTMAP (SHT_LOPROC + 2) /* Preemption details. */ +#define SHT_ARM_ATTRIBUTES (SHT_LOPROC + 3) /* ARM attributes section. */ + + +/* AArch64 relocs. */ + +#define R_AARCH64_NONE 0 /* No relocation. */ +#define R_AARCH64_ABS64 257 /* Direct 64 bit. */ +#define R_AARCH64_ABS32 258 /* Direct 32 bit. */ +#define R_AARCH64_ABS16 259 /* Direct 16-bit. */ +#define R_AARCH64_PREL64 260 /* PC-relative 64-bit. */ +#define R_AARCH64_PREL32 261 /* PC-relative 32-bit. */ +#define R_AARCH64_PREL16 262 /* PC-relative 16-bit. */ +#define R_AARCH64_MOVW_UABS_G0 263 /* Dir. MOVZ imm. from bits 15:0. */ +#define R_AARCH64_MOVW_UABS_G0_NC 264 /* Likewise for MOVK; no check. */ +#define R_AARCH64_MOVW_UABS_G1 265 /* Dir. MOVZ imm. from bits 31:16. */ +#define R_AARCH64_MOVW_UABS_G1_NC 266 /* Likewise for MOVK; no check. */ +#define R_AARCH64_MOVW_UABS_G2 267 /* Dir. MOVZ imm. from bits 47:32. */ +#define R_AARCH64_MOVW_UABS_G2_NC 268 /* Likewise for MOVK; no check. */ +#define R_AARCH64_MOVW_UABS_G3 269 /* Dir. MOV{K,Z} imm. from 63:48. */ +#define R_AARCH64_MOVW_SABS_G0 270 /* Dir. MOV{N,Z} imm. from 15:0. */ +#define R_AARCH64_MOVW_SABS_G1 271 /* Dir. MOV{N,Z} imm. from 31:16. */ +#define R_AARCH64_MOVW_SABS_G2 272 /* Dir. MOV{N,Z} imm. from 47:32. */ +#define R_AARCH64_LD_PREL_LO19 273 /* PC-rel. LD imm. from bits 20:2. */ +#define R_AARCH64_ADR_PREL_LO21 274 /* PC-rel. ADR imm. from bits 20:0. */ +#define R_AARCH64_ADR_PREL_PG_HI21 275 /* Page-rel. ADRP imm. from 32:12. */ +#define R_AARCH64_ADR_PREL_PG_HI21_NC 276 /* Likewise; no overflow check. */ +#define R_AARCH64_ADD_ABS_LO12_NC 277 /* Dir. ADD imm. from bits 11:0. */ +#define R_AARCH64_LDST8_ABS_LO12_NC 278 /* Likewise for LD/ST; no check. */ +#define R_AARCH64_TSTBR14 279 /* PC-rel. TBZ/TBNZ imm. from 15:2. */ +#define R_AARCH64_CONDBR19 280 /* PC-rel. cond. br. imm. from 20:2. */ +#define R_AARCH64_JUMP26 282 /* PC-rel. B imm. from bits 27:2. */ +#define R_AARCH64_CALL26 283 /* Likewise for CALL. */ +#define R_AARCH64_LDST16_ABS_LO12_NC 284 /* Dir. ADD imm. from bits 11:1. */ +#define R_AARCH64_LDST32_ABS_LO12_NC 285 /* Likewise for bits 11:2. */ +#define R_AARCH64_LDST64_ABS_LO12_NC 286 /* Likewise for bits 11:3. */ +#define R_AARCH64_MOVW_PREL_G0 287 /* PC-rel. MOV{N,Z} imm. from 15:0. */ +#define R_AARCH64_MOVW_PREL_G0_NC 288 /* Likewise for MOVK; no check. */ +#define R_AARCH64_MOVW_PREL_G1 289 /* PC-rel. MOV{N,Z} imm. from 31:16. */ +#define R_AARCH64_MOVW_PREL_G1_NC 290 /* Likewise for MOVK; no check. */ +#define R_AARCH64_MOVW_PREL_G2 291 /* PC-rel. MOV{N,Z} imm. from 47:32. */ +#define R_AARCH64_MOVW_PREL_G2_NC 292 /* Likewise for MOVK; no check. */ +#define R_AARCH64_MOVW_PREL_G3 293 /* PC-rel. MOV{N,Z} imm. from 63:48. */ +#define R_AARCH64_LDST128_ABS_LO12_NC 299 /* Dir. ADD imm. from bits 11:4. */ +#define R_AARCH64_MOVW_GOTOFF_G0 300 /* GOT-rel. off. MOV{N,Z} imm. 15:0. */ +#define R_AARCH64_MOVW_GOTOFF_G0_NC 301 /* Likewise for MOVK; no check. */ +#define R_AARCH64_MOVW_GOTOFF_G1 302 /* GOT-rel. o. MOV{N,Z} imm. 31:16. */ +#define R_AARCH64_MOVW_GOTOFF_G1_NC 303 /* Likewise for MOVK; no check. */ +#define R_AARCH64_MOVW_GOTOFF_G2 304 /* GOT-rel. o. MOV{N,Z} imm. 47:32. */ +#define R_AARCH64_MOVW_GOTOFF_G2_NC 305 /* Likewise for MOVK; no check. */ +#define R_AARCH64_MOVW_GOTOFF_G3 306 /* GOT-rel. o. MOV{N,Z} imm. 63:48. */ +#define R_AARCH64_GOTREL64 307 /* GOT-relative 64-bit. */ +#define R_AARCH64_GOTREL32 308 /* GOT-relative 32-bit. */ +#define R_AARCH64_GOT_LD_PREL19 309 /* PC-rel. GOT off. load imm. 20:2. */ +#define R_AARCH64_LD64_GOTOFF_LO15 310 /* GOT-rel. off. LD/ST imm. 14:3. */ +#define R_AARCH64_ADR_GOT_PAGE 311 /* P-page-rel. GOT off. ADRP 32:12. */ +#define R_AARCH64_LD64_GOT_LO12_NC 312 /* Dir. GOT off. LD/ST imm. 11:3. */ +#define R_AARCH64_LD64_GOTPAGE_LO15 313 /* GOT-page-rel. GOT off. LD/ST 14:3 */ +#define R_AARCH64_TLSGD_ADR_PREL21 512 /* PC-relative ADR imm. 20:0. */ +#define R_AARCH64_TLSGD_ADR_PAGE21 513 /* page-rel. ADRP imm. 32:12. */ +#define R_AARCH64_TLSGD_ADD_LO12_NC 514 /* direct ADD imm. from 11:0. */ +#define R_AARCH64_TLSGD_MOVW_G1 515 /* GOT-rel. MOV{N,Z} 31:16. */ +#define R_AARCH64_TLSGD_MOVW_G0_NC 516 /* GOT-rel. MOVK imm. 15:0. */ +#define R_AARCH64_TLSLD_ADR_PREL21 517 /* Like 512; local dynamic model. */ +#define R_AARCH64_TLSLD_ADR_PAGE21 518 /* Like 513; local dynamic model. */ +#define R_AARCH64_TLSLD_ADD_LO12_NC 519 /* Like 514; local dynamic model. */ +#define R_AARCH64_TLSLD_MOVW_G1 520 /* Like 515; local dynamic model. */ +#define R_AARCH64_TLSLD_MOVW_G0_NC 521 /* Like 516; local dynamic model. */ +#define R_AARCH64_TLSLD_LD_PREL19 522 /* TLS PC-rel. load imm. 20:2. */ +#define R_AARCH64_TLSLD_MOVW_DTPREL_G2 523 /* TLS DTP-rel. MOV{N,Z} 47:32. */ +#define R_AARCH64_TLSLD_MOVW_DTPREL_G1 524 /* TLS DTP-rel. MOV{N,Z} 31:16. */ +#define R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC 525 /* Likewise; MOVK; no check. */ +#define R_AARCH64_TLSLD_MOVW_DTPREL_G0 526 /* TLS DTP-rel. MOV{N,Z} 15:0. */ +#define R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC 527 /* Likewise; MOVK; no check. */ +#define R_AARCH64_TLSLD_ADD_DTPREL_HI12 528 /* DTP-rel. ADD imm. from 23:12. */ +#define R_AARCH64_TLSLD_ADD_DTPREL_LO12 529 /* DTP-rel. ADD imm. from 11:0. */ +#define R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC 530 /* Likewise; no ovfl. check. */ +#define R_AARCH64_TLSLD_LDST8_DTPREL_LO12 531 /* DTP-rel. LD/ST imm. 11:0. */ +#define R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC 532 /* Likewise; no check. */ +#define R_AARCH64_TLSLD_LDST16_DTPREL_LO12 533 /* DTP-rel. LD/ST imm. 11:1. */ +#define R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC 534 /* Likewise; no check. */ +#define R_AARCH64_TLSLD_LDST32_DTPREL_LO12 535 /* DTP-rel. LD/ST imm. 11:2. */ +#define R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC 536 /* Likewise; no check. */ +#define R_AARCH64_TLSLD_LDST64_DTPREL_LO12 537 /* DTP-rel. LD/ST imm. 11:3. */ +#define R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC 538 /* Likewise; no check. */ +#define R_AARCH64_TLSIE_MOVW_GOTTPREL_G1 539 /* GOT-rel. MOV{N,Z} 31:16. */ +#define R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC 540 /* GOT-rel. MOVK 15:0. */ +#define R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 541 /* Page-rel. ADRP 32:12. */ +#define R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC 542 /* Direct LD off. 11:3. */ +#define R_AARCH64_TLSIE_LD_GOTTPREL_PREL19 543 /* PC-rel. load imm. 20:2. */ +#define R_AARCH64_TLSLE_MOVW_TPREL_G2 544 /* TLS TP-rel. MOV{N,Z} 47:32. */ +#define R_AARCH64_TLSLE_MOVW_TPREL_G1 545 /* TLS TP-rel. MOV{N,Z} 31:16. */ +#define R_AARCH64_TLSLE_MOVW_TPREL_G1_NC 546 /* Likewise; MOVK; no check. */ +#define R_AARCH64_TLSLE_MOVW_TPREL_G0 547 /* TLS TP-rel. MOV{N,Z} 15:0. */ +#define R_AARCH64_TLSLE_MOVW_TPREL_G0_NC 548 /* Likewise; MOVK; no check. */ +#define R_AARCH64_TLSLE_ADD_TPREL_HI12 549 /* TP-rel. ADD imm. 23:12. */ +#define R_AARCH64_TLSLE_ADD_TPREL_LO12 550 /* TP-rel. ADD imm. 11:0. */ +#define R_AARCH64_TLSLE_ADD_TPREL_LO12_NC 551 /* Likewise; no ovfl. check. */ +#define R_AARCH64_TLSLE_LDST8_TPREL_LO12 552 /* TP-rel. LD/ST off. 11:0. */ +#define R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC 553 /* Likewise; no ovfl. check. */ +#define R_AARCH64_TLSLE_LDST16_TPREL_LO12 554 /* TP-rel. LD/ST off. 11:1. */ +#define R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC 555 /* Likewise; no check. */ +#define R_AARCH64_TLSLE_LDST32_TPREL_LO12 556 /* TP-rel. LD/ST off. 11:2. */ +#define R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC 557 /* Likewise; no check. */ +#define R_AARCH64_TLSLE_LDST64_TPREL_LO12 558 /* TP-rel. LD/ST off. 11:3. */ +#define R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC 559 /* Likewise; no check. */ +#define R_AARCH64_TLSDESC_LD_PREL19 560 /* PC-rel. load immediate 20:2. */ +#define R_AARCH64_TLSDESC_ADR_PREL21 561 /* PC-rel. ADR immediate 20:0. */ +#define R_AARCH64_TLSDESC_ADR_PAGE21 562 /* Page-rel. ADRP imm. 32:12. */ +#define R_AARCH64_TLSDESC_LD64_LO12 563 /* Direct LD off. from 11:3. */ +#define R_AARCH64_TLSDESC_ADD_LO12 564 /* Direct ADD imm. from 11:0. */ +#define R_AARCH64_TLSDESC_OFF_G1 565 /* GOT-rel. MOV{N,Z} imm. 31:16. */ +#define R_AARCH64_TLSDESC_OFF_G0_NC 566 /* GOT-rel. MOVK imm. 15:0; no ck. */ +#define R_AARCH64_TLSDESC_LDR 567 /* Relax LDR. */ +#define R_AARCH64_TLSDESC_ADD 568 /* Relax ADD. */ +#define R_AARCH64_TLSDESC_CALL 569 /* Relax BLR. */ +#define R_AARCH64_TLSLE_LDST128_TPREL_LO12 570 /* TP-rel. LD/ST off. 11:4. */ +#define R_AARCH64_TLSLE_LDST128_TPREL_LO12_NC 571 /* Likewise; no check. */ +#define R_AARCH64_TLSLD_LDST128_DTPREL_LO12 572 /* DTP-rel. LD/ST imm. 11:4. */ +#define R_AARCH64_TLSLD_LDST128_DTPREL_LO12_NC 573 /* Likewise; no check. */ +#define R_AARCH64_COPY 1024 /* Copy symbol at runtime. */ +#define R_AARCH64_GLOB_DAT 1025 /* Create GOT entry. */ +#define R_AARCH64_JUMP_SLOT 1026 /* Create PLT entry. */ +#define R_AARCH64_RELATIVE 1027 /* Adjust by program base. */ +#define R_AARCH64_TLS_DTPMOD64 1028 /* Module number, 64 bit. */ +#define R_AARCH64_TLS_DTPREL64 1029 /* Module-relative offset, 64 bit. */ +#define R_AARCH64_TLS_TPREL64 1030 /* TP-relative offset, 64 bit. */ +#define R_AARCH64_TLSDESC 1031 /* TLS Descriptor. */ +#define R_AARCH64_IRELATIVE 1032 /* STT_GNU_IFUNC relocation. */ + +/* ARM relocs. */ + +#define R_ARM_NONE 0 /* No reloc */ +#define R_ARM_PC24 1 /* PC relative 26 bit branch */ +#define R_ARM_ABS32 2 /* Direct 32 bit */ +#define R_ARM_REL32 3 /* PC relative 32 bit */ +#define R_ARM_PC13 4 +#define R_ARM_ABS16 5 /* Direct 16 bit */ +#define R_ARM_ABS12 6 /* Direct 12 bit */ +#define R_ARM_THM_ABS5 7 +#define R_ARM_ABS8 8 /* Direct 8 bit */ +#define R_ARM_SBREL32 9 +#define R_ARM_THM_PC22 10 +#define R_ARM_THM_PC8 11 +#define R_ARM_AMP_VCALL9 12 +#define R_ARM_SWI24 13 /* Obsolete static relocation. */ +#define R_ARM_TLS_DESC 13 /* Dynamic relocation. */ +#define R_ARM_THM_SWI8 14 +#define R_ARM_XPC25 15 +#define R_ARM_THM_XPC22 16 +#define R_ARM_TLS_DTPMOD32 17 /* ID of module containing symbol */ +#define R_ARM_TLS_DTPOFF32 18 /* Offset in TLS block */ +#define R_ARM_TLS_TPOFF32 19 /* Offset in static TLS block */ +#define R_ARM_COPY 20 /* Copy symbol at runtime */ +#define R_ARM_GLOB_DAT 21 /* Create GOT entry */ +#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */ +#define R_ARM_RELATIVE 23 /* Adjust by program base */ +#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */ +#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */ +#define R_ARM_GOT32 26 /* 32 bit GOT entry */ +#define R_ARM_PLT32 27 /* 32 bit PLT address */ +#define R_ARM_CALL 28 +#define R_ARM_JUMP24 29 +#define R_ARM_THM_JUMP24 30 +#define R_ARM_ALU_PCREL_7_0 32 +#define R_ARM_ALU_PCREL_15_8 33 +#define R_ARM_ALU_PCREL_23_15 34 +#define R_ARM_LDR_SBREL_11_0 35 +#define R_ARM_ALU_SBREL_19_12 36 +#define R_ARM_ALU_SBREL_27_20 37 +#define R_ARM_V4BX 40 +#define R_ARM_PREL31 42 +#define R_ARM_MOVW_ABS_NC 43 +#define R_ARM_MOVT_ABS 44 +#define R_ARM_THM_MOVW_ABS_NC 47 +#define R_ARM_THM_MOVT_ABS 48 +#define R_ARM_TLS_GOTDESC 90 +#define R_ARM_TLS_CALL 91 +#define R_ARM_TLS_DESCSEQ 92 +#define R_ARM_THM_TLS_CALL 93 +#define R_ARM_GNU_VTENTRY 100 +#define R_ARM_GNU_VTINHERIT 101 +#define R_ARM_THM_PC11 102 /* thumb unconditional branch */ +#define R_ARM_THM_PC9 103 /* thumb conditional branch */ +#define R_ARM_TLS_GD32 104 /* PC-rel 32 bit for global dynamic + thread local data */ +#define R_ARM_TLS_LDM32 105 /* PC-rel 32 bit for local dynamic + thread local data */ +#define R_ARM_TLS_LDO32 106 /* 32 bit offset relative to TLS + block */ +#define R_ARM_TLS_IE32 107 /* PC-rel 32 bit for GOT entry of + static TLS block offset */ +#define R_ARM_TLS_LE32 108 /* 32 bit offset relative to static + TLS block */ +#define R_ARM_THM_TLS_DESCSEQ 129 +#define R_ARM_IRELATIVE 160 +#define R_ARM_RXPC25 249 +#define R_ARM_RSBREL32 250 +#define R_ARM_THM_RPC22 251 +#define R_ARM_RREL32 252 +#define R_ARM_RABS22 253 +#define R_ARM_RPC24 254 +#define R_ARM_RBASE 255 +/* Keep this the last entry. */ +#define R_ARM_NUM 256 + +/* TMS320C67xx specific declarations */ + +/* XXX: no ELF standard yet*/ + +/* TMS320C67xx relocs. */ +#define R_C60_32 1 +#define R_C60_GOT32 3 /* 32 bit GOT entry */ +#define R_C60_PLT32 4 /* 32 bit PLT address */ +#define R_C60_COPY 5 /* Copy symbol at runtime */ +#define R_C60_GLOB_DAT 6 /* Create GOT entry */ +#define R_C60_JMP_SLOT 7 /* Create PLT entry */ +#define R_C60_RELATIVE 8 /* Adjust by program base */ +#define R_C60_GOTOFF 9 /* 32 bit offset to GOT */ +#define R_C60_GOTPC 10 /* 32 bit PC relative offset to GOT */ + +#define R_C60HI16 0x55 /* high 16 bit MVKH embedded */ +#define R_C60LO16 0x54 /* low 16 bit MVKL embedded */ + +/* IA-64 specific declarations. */ + +/* Processor specific flags for the Ehdr e_flags field. */ +#define EF_IA_64_MASKOS 0x0000000f /* os-specific flags */ +#define EF_IA_64_ABI64 0x00000010 /* 64-bit ABI */ +#define EF_IA_64_ARCH 0xff000000 /* arch. version mask */ + +/* Processor specific values for the Phdr p_type field. */ +#define PT_IA_64_ARCHEXT (PT_LOPROC + 0) /* arch extension bits */ +#define PT_IA_64_UNWIND (PT_LOPROC + 1) /* ia64 unwind bits */ +#define PT_IA_64_HP_OPT_ANOT (PT_LOOS + 0x12) +#define PT_IA_64_HP_HSL_ANOT (PT_LOOS + 0x13) +#define PT_IA_64_HP_STACK (PT_LOOS + 0x14) + +/* Processor specific flags for the Phdr p_flags field. */ +#define PF_IA_64_NORECOV 0x80000000 /* spec insns w/o recovery */ + +/* Processor specific values for the Shdr sh_type field. */ +#define SHT_IA_64_EXT (SHT_LOPROC + 0) /* extension bits */ +#define SHT_IA_64_UNWIND (SHT_LOPROC + 1) /* unwind bits */ + +/* Processor specific flags for the Shdr sh_flags field. */ +#define SHF_IA_64_SHORT 0x10000000 /* section near gp */ +#define SHF_IA_64_NORECOV 0x20000000 /* spec insns w/o recovery */ + +/* Processor specific values for the Dyn d_tag field. */ +#define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0) +#define DT_IA_64_NUM 1 + +/* IA-64 relocations. */ +#define R_IA64_NONE 0x00 /* none */ +#define R_IA64_IMM14 0x21 /* symbol + addend, add imm14 */ +#define R_IA64_IMM22 0x22 /* symbol + addend, add imm22 */ +#define R_IA64_IMM64 0x23 /* symbol + addend, mov imm64 */ +#define R_IA64_DIR32MSB 0x24 /* symbol + addend, data4 MSB */ +#define R_IA64_DIR32LSB 0x25 /* symbol + addend, data4 LSB */ +#define R_IA64_DIR64MSB 0x26 /* symbol + addend, data8 MSB */ +#define R_IA64_DIR64LSB 0x27 /* symbol + addend, data8 LSB */ +#define R_IA64_GPREL22 0x2a /* @gprel(sym + add), add imm22 */ +#define R_IA64_GPREL64I 0x2b /* @gprel(sym + add), mov imm64 */ +#define R_IA64_GPREL32MSB 0x2c /* @gprel(sym + add), data4 MSB */ +#define R_IA64_GPREL32LSB 0x2d /* @gprel(sym + add), data4 LSB */ +#define R_IA64_GPREL64MSB 0x2e /* @gprel(sym + add), data8 MSB */ +#define R_IA64_GPREL64LSB 0x2f /* @gprel(sym + add), data8 LSB */ +#define R_IA64_LTOFF22 0x32 /* @ltoff(sym + add), add imm22 */ +#define R_IA64_LTOFF64I 0x33 /* @ltoff(sym + add), mov imm64 */ +#define R_IA64_PLTOFF22 0x3a /* @pltoff(sym + add), add imm22 */ +#define R_IA64_PLTOFF64I 0x3b /* @pltoff(sym + add), mov imm64 */ +#define R_IA64_PLTOFF64MSB 0x3e /* @pltoff(sym + add), data8 MSB */ +#define R_IA64_PLTOFF64LSB 0x3f /* @pltoff(sym + add), data8 LSB */ +#define R_IA64_FPTR64I 0x43 /* @fptr(sym + add), mov imm64 */ +#define R_IA64_FPTR32MSB 0x44 /* @fptr(sym + add), data4 MSB */ +#define R_IA64_FPTR32LSB 0x45 /* @fptr(sym + add), data4 LSB */ +#define R_IA64_FPTR64MSB 0x46 /* @fptr(sym + add), data8 MSB */ +#define R_IA64_FPTR64LSB 0x47 /* @fptr(sym + add), data8 LSB */ +#define R_IA64_PCREL60B 0x48 /* @pcrel(sym + add), brl */ +#define R_IA64_PCREL21B 0x49 /* @pcrel(sym + add), ptb, call */ +#define R_IA64_PCREL21M 0x4a /* @pcrel(sym + add), chk.s */ +#define R_IA64_PCREL21F 0x4b /* @pcrel(sym + add), fchkf */ +#define R_IA64_PCREL32MSB 0x4c /* @pcrel(sym + add), data4 MSB */ +#define R_IA64_PCREL32LSB 0x4d /* @pcrel(sym + add), data4 LSB */ +#define R_IA64_PCREL64MSB 0x4e /* @pcrel(sym + add), data8 MSB */ +#define R_IA64_PCREL64LSB 0x4f /* @pcrel(sym + add), data8 LSB */ +#define R_IA64_LTOFF_FPTR22 0x52 /* @ltoff(@fptr(s+a)), imm22 */ +#define R_IA64_LTOFF_FPTR64I 0x53 /* @ltoff(@fptr(s+a)), imm64 */ +#define R_IA64_LTOFF_FPTR32MSB 0x54 /* @ltoff(@fptr(s+a)), data4 MSB */ +#define R_IA64_LTOFF_FPTR32LSB 0x55 /* @ltoff(@fptr(s+a)), data4 LSB */ +#define R_IA64_LTOFF_FPTR64MSB 0x56 /* @ltoff(@fptr(s+a)), data8 MSB */ +#define R_IA64_LTOFF_FPTR64LSB 0x57 /* @ltoff(@fptr(s+a)), data8 LSB */ +#define R_IA64_SEGREL32MSB 0x5c /* @segrel(sym + add), data4 MSB */ +#define R_IA64_SEGREL32LSB 0x5d /* @segrel(sym + add), data4 LSB */ +#define R_IA64_SEGREL64MSB 0x5e /* @segrel(sym + add), data8 MSB */ +#define R_IA64_SEGREL64LSB 0x5f /* @segrel(sym + add), data8 LSB */ +#define R_IA64_SECREL32MSB 0x64 /* @secrel(sym + add), data4 MSB */ +#define R_IA64_SECREL32LSB 0x65 /* @secrel(sym + add), data4 LSB */ +#define R_IA64_SECREL64MSB 0x66 /* @secrel(sym + add), data8 MSB */ +#define R_IA64_SECREL64LSB 0x67 /* @secrel(sym + add), data8 LSB */ +#define R_IA64_REL32MSB 0x6c /* data 4 + REL */ +#define R_IA64_REL32LSB 0x6d /* data 4 + REL */ +#define R_IA64_REL64MSB 0x6e /* data 8 + REL */ +#define R_IA64_REL64LSB 0x6f /* data 8 + REL */ +#define R_IA64_LTV32MSB 0x74 /* symbol + addend, data4 MSB */ +#define R_IA64_LTV32LSB 0x75 /* symbol + addend, data4 LSB */ +#define R_IA64_LTV64MSB 0x76 /* symbol + addend, data8 MSB */ +#define R_IA64_LTV64LSB 0x77 /* symbol + addend, data8 LSB */ +#define R_IA64_PCREL21BI 0x79 /* @pcrel(sym + add), 21bit inst */ +#define R_IA64_PCREL22 0x7a /* @pcrel(sym + add), 22bit inst */ +#define R_IA64_PCREL64I 0x7b /* @pcrel(sym + add), 64bit inst */ +#define R_IA64_IPLTMSB 0x80 /* dynamic reloc, imported PLT, MSB */ +#define R_IA64_IPLTLSB 0x81 /* dynamic reloc, imported PLT, LSB */ +#define R_IA64_COPY 0x84 /* copy relocation */ +#define R_IA64_SUB 0x85 /* Addend and symbol difference */ +#define R_IA64_LTOFF22X 0x86 /* LTOFF22, relaxable. */ +#define R_IA64_LDXMOV 0x87 /* Use of LTOFF22X. */ +#define R_IA64_TPREL14 0x91 /* @tprel(sym + add), imm14 */ +#define R_IA64_TPREL22 0x92 /* @tprel(sym + add), imm22 */ +#define R_IA64_TPREL64I 0x93 /* @tprel(sym + add), imm64 */ +#define R_IA64_TPREL64MSB 0x96 /* @tprel(sym + add), data8 MSB */ +#define R_IA64_TPREL64LSB 0x97 /* @tprel(sym + add), data8 LSB */ +#define R_IA64_LTOFF_TPREL22 0x9a /* @ltoff(@tprel(s+a)), imm2 */ +#define R_IA64_DTPMOD64MSB 0xa6 /* @dtpmod(sym + add), data8 MSB */ +#define R_IA64_DTPMOD64LSB 0xa7 /* @dtpmod(sym + add), data8 LSB */ +#define R_IA64_LTOFF_DTPMOD22 0xaa /* @ltoff(@dtpmod(sym + add)), imm22 */ +#define R_IA64_DTPREL14 0xb1 /* @dtprel(sym + add), imm14 */ +#define R_IA64_DTPREL22 0xb2 /* @dtprel(sym + add), imm22 */ +#define R_IA64_DTPREL64I 0xb3 /* @dtprel(sym + add), imm64 */ +#define R_IA64_DTPREL32MSB 0xb4 /* @dtprel(sym + add), data4 MSB */ +#define R_IA64_DTPREL32LSB 0xb5 /* @dtprel(sym + add), data4 LSB */ +#define R_IA64_DTPREL64MSB 0xb6 /* @dtprel(sym + add), data8 MSB */ +#define R_IA64_DTPREL64LSB 0xb7 /* @dtprel(sym + add), data8 LSB */ +#define R_IA64_LTOFF_DTPREL22 0xba /* @ltoff(@dtprel(s+a)), imm22 */ + +/* SH specific declarations */ + +/* Processor specific flags for the ELF header e_flags field. */ +#define EF_SH_MACH_MASK 0x1f +#define EF_SH_UNKNOWN 0x0 +#define EF_SH1 0x1 +#define EF_SH2 0x2 +#define EF_SH3 0x3 +#define EF_SH_DSP 0x4 +#define EF_SH3_DSP 0x5 +#define EF_SH4AL_DSP 0x6 +#define EF_SH3E 0x8 +#define EF_SH4 0x9 +#define EF_SH2E 0xb +#define EF_SH4A 0xc +#define EF_SH2A 0xd +#define EF_SH4_NOFPU 0x10 +#define EF_SH4A_NOFPU 0x11 +#define EF_SH4_NOMMU_NOFPU 0x12 +#define EF_SH2A_NOFPU 0x13 +#define EF_SH3_NOMMU 0x14 +#define EF_SH2A_SH4_NOFPU 0x15 +#define EF_SH2A_SH3_NOFPU 0x16 +#define EF_SH2A_SH4 0x17 +#define EF_SH2A_SH3E 0x18 + +/* SH relocs. */ +#define R_SH_NONE 0 +#define R_SH_DIR32 1 +#define R_SH_REL32 2 +#define R_SH_DIR8WPN 3 +#define R_SH_IND12W 4 +#define R_SH_DIR8WPL 5 +#define R_SH_DIR8WPZ 6 +#define R_SH_DIR8BP 7 +#define R_SH_DIR8W 8 +#define R_SH_DIR8L 9 +#define R_SH_SWITCH16 25 +#define R_SH_SWITCH32 26 +#define R_SH_USES 27 +#define R_SH_COUNT 28 +#define R_SH_ALIGN 29 +#define R_SH_CODE 30 +#define R_SH_DATA 31 +#define R_SH_LABEL 32 +#define R_SH_SWITCH8 33 +#define R_SH_GNU_VTINHERIT 34 +#define R_SH_GNU_VTENTRY 35 +#define R_SH_TLS_GD_32 144 +#define R_SH_TLS_LD_32 145 +#define R_SH_TLS_LDO_32 146 +#define R_SH_TLS_IE_32 147 +#define R_SH_TLS_LE_32 148 +#define R_SH_TLS_DTPMOD32 149 +#define R_SH_TLS_DTPOFF32 150 +#define R_SH_TLS_TPOFF32 151 +#define R_SH_GOT32 160 +#define R_SH_PLT32 161 +#define R_SH_COPY 162 +#define R_SH_GLOB_DAT 163 +#define R_SH_JMP_SLOT 164 +#define R_SH_RELATIVE 165 +#define R_SH_GOTOFF 166 +#define R_SH_GOTPC 167 +/* Keep this the last entry. */ +#define R_SH_NUM 256 + +/* S/390 specific definitions. */ + +/* Valid values for the e_flags field. */ + +#define EF_S390_HIGH_GPRS 0x00000001 /* High GPRs kernel facility needed. */ + +/* Additional s390 relocs */ + +#define R_390_NONE 0 /* No reloc. */ +#define R_390_8 1 /* Direct 8 bit. */ +#define R_390_12 2 /* Direct 12 bit. */ +#define R_390_16 3 /* Direct 16 bit. */ +#define R_390_32 4 /* Direct 32 bit. */ +#define R_390_PC32 5 /* PC relative 32 bit. */ +#define R_390_GOT12 6 /* 12 bit GOT offset. */ +#define R_390_GOT32 7 /* 32 bit GOT offset. */ +#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ +#define R_390_COPY 9 /* Copy symbol at runtime. */ +#define R_390_GLOB_DAT 10 /* Create GOT entry. */ +#define R_390_JMP_SLOT 11 /* Create PLT entry. */ +#define R_390_RELATIVE 12 /* Adjust by program base. */ +#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ +#define R_390_GOTPC 14 /* 32 bit PC relative offset to GOT. */ +#define R_390_GOT16 15 /* 16 bit GOT offset. */ +#define R_390_PC16 16 /* PC relative 16 bit. */ +#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ +#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ +#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ +#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ +#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ +#define R_390_64 22 /* Direct 64 bit. */ +#define R_390_PC64 23 /* PC relative 64 bit. */ +#define R_390_GOT64 24 /* 64 bit GOT offset. */ +#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ +#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ +#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ +#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ +#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ +#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ +#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ +#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ +#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ +#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ +#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ +#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ +#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ +#define R_390_TLS_GDCALL 38 /* Tag for function call in general + dynamic TLS code. */ +#define R_390_TLS_LDCALL 39 /* Tag for function call in local + dynamic TLS code. */ +#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic + thread local data. */ +#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic + thread local data. */ +#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic + thread local data in LE code. */ +#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic + thread local data in LE code. */ +#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to + static TLS block. */ +#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to + static TLS block. */ +#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS + block. */ +#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS + block. */ +#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ +#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ +#define R_390_TLS_TPOFF 56 /* Negated offset in static TLS + block. */ +#define R_390_20 57 /* Direct 20 bit. */ +#define R_390_GOT20 58 /* 20 bit GOT offset. */ +#define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */ +#define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS + block offset. */ +#define R_390_IRELATIVE 61 /* STT_GNU_IFUNC relocation. */ +/* Keep this the last entry. */ +#define R_390_NUM 62 + + +/* CRIS relocations. */ +#define R_CRIS_NONE 0 +#define R_CRIS_8 1 +#define R_CRIS_16 2 +#define R_CRIS_32 3 +#define R_CRIS_8_PCREL 4 +#define R_CRIS_16_PCREL 5 +#define R_CRIS_32_PCREL 6 +#define R_CRIS_GNU_VTINHERIT 7 +#define R_CRIS_GNU_VTENTRY 8 +#define R_CRIS_COPY 9 +#define R_CRIS_GLOB_DAT 10 +#define R_CRIS_JUMP_SLOT 11 +#define R_CRIS_RELATIVE 12 +#define R_CRIS_16_GOT 13 +#define R_CRIS_32_GOT 14 +#define R_CRIS_16_GOTPLT 15 +#define R_CRIS_32_GOTPLT 16 +#define R_CRIS_32_GOTREL 17 +#define R_CRIS_32_PLT_GOTREL 18 +#define R_CRIS_32_PLT_PCREL 19 + +#define R_CRIS_NUM 20 + + +/* AMD x86-64 relocations. */ +#define R_X86_64_NONE 0 /* No reloc */ +#define R_X86_64_64 1 /* Direct 64 bit */ +#define R_X86_64_PC32 2 /* PC relative 32 bit signed */ +#define R_X86_64_GOT32 3 /* 32 bit GOT entry */ +#define R_X86_64_PLT32 4 /* 32 bit PLT address */ +#define R_X86_64_COPY 5 /* Copy symbol at runtime */ +#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ +#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ +#define R_X86_64_RELATIVE 8 /* Adjust by program base */ +#define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative + offset to GOT */ +#define R_X86_64_32 10 /* Direct 32 bit zero extended */ +#define R_X86_64_32S 11 /* Direct 32 bit sign extended */ +#define R_X86_64_16 12 /* Direct 16 bit zero extended */ +#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ +#define R_X86_64_8 14 /* Direct 8 bit sign extended */ +#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ +#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ +#define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */ +#define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */ +#define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset + to two GOT entries for GD symbol */ +#define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset + to two GOT entries for LD symbol */ +#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ +#define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset + to GOT entry for IE symbol */ +#define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */ +#define R_X86_64_PC64 24 /* PC relative 64 bit */ +#define R_X86_64_GOTOFF64 25 /* 64 bit offset to GOT */ +#define R_X86_64_GOTPC32 26 /* 32 bit signed pc relative + offset to GOT */ +#define R_X86_64_GOT64 27 /* 64-bit GOT entry offset */ +#define R_X86_64_GOTPCREL64 28 /* 64-bit PC relative offset + to GOT entry */ +#define R_X86_64_GOTPC64 29 /* 64-bit PC relative offset to GOT */ +#define R_X86_64_GOTPLT64 30 /* like GOT64, says PLT entry needed */ +#define R_X86_64_PLTOFF64 31 /* 64-bit GOT relative offset + to PLT entry */ +#define R_X86_64_SIZE32 32 /* Size of symbol plus 32-bit addend */ +#define R_X86_64_SIZE64 33 /* Size of symbol plus 64-bit addend */ +#define R_X86_64_GOTPC32_TLSDESC 34 /* GOT offset for TLS descriptor. */ +#define R_X86_64_TLSDESC_CALL 35 /* Marker for call through TLS + descriptor. */ +#define R_X86_64_TLSDESC 36 /* TLS descriptor. */ +#define R_X86_64_IRELATIVE 37 /* Adjust indirectly by program base */ +#define R_X86_64_RELATIVE64 38 /* 64-bit adjust by program base */ +#define R_X86_64_GOTPCRELX 41 /* like GOTPCREL, but optionally with + linker optimizations */ +#define R_X86_64_REX_GOTPCRELX 42 /* like GOTPCRELX, but a REX prefix + is present */ + +#define R_X86_64_NUM 39 + + +/* AM33 relocations. */ +#define R_MN10300_NONE 0 /* No reloc. */ +#define R_MN10300_32 1 /* Direct 32 bit. */ +#define R_MN10300_16 2 /* Direct 16 bit. */ +#define R_MN10300_8 3 /* Direct 8 bit. */ +#define R_MN10300_PCREL32 4 /* PC-relative 32-bit. */ +#define R_MN10300_PCREL16 5 /* PC-relative 16-bit signed. */ +#define R_MN10300_PCREL8 6 /* PC-relative 8-bit signed. */ +#define R_MN10300_GNU_VTINHERIT 7 /* Ancient C++ vtable garbage... */ +#define R_MN10300_GNU_VTENTRY 8 /* ... collection annotation. */ +#define R_MN10300_24 9 /* Direct 24 bit. */ +#define R_MN10300_GOTPC32 10 /* 32-bit PCrel offset to GOT. */ +#define R_MN10300_GOTPC16 11 /* 16-bit PCrel offset to GOT. */ +#define R_MN10300_GOTOFF32 12 /* 32-bit offset from GOT. */ +#define R_MN10300_GOTOFF24 13 /* 24-bit offset from GOT. */ +#define R_MN10300_GOTOFF16 14 /* 16-bit offset from GOT. */ +#define R_MN10300_PLT32 15 /* 32-bit PCrel to PLT entry. */ +#define R_MN10300_PLT16 16 /* 16-bit PCrel to PLT entry. */ +#define R_MN10300_GOT32 17 /* 32-bit offset to GOT entry. */ +#define R_MN10300_GOT24 18 /* 24-bit offset to GOT entry. */ +#define R_MN10300_GOT16 19 /* 16-bit offset to GOT entry. */ +#define R_MN10300_COPY 20 /* Copy symbol at runtime. */ +#define R_MN10300_GLOB_DAT 21 /* Create GOT entry. */ +#define R_MN10300_JMP_SLOT 22 /* Create PLT entry. */ +#define R_MN10300_RELATIVE 23 /* Adjust by program base. */ +#define R_MN10300_TLS_GD 24 /* 32-bit offset for global dynamic. */ +#define R_MN10300_TLS_LD 25 /* 32-bit offset for local dynamic. */ +#define R_MN10300_TLS_LDO 26 /* Module-relative offset. */ +#define R_MN10300_TLS_GOTIE 27 /* GOT offset for static TLS block + offset. */ +#define R_MN10300_TLS_IE 28 /* GOT address for static TLS block + offset. */ +#define R_MN10300_TLS_LE 29 /* Offset relative to static TLS + block. */ +#define R_MN10300_TLS_DTPMOD 30 /* ID of module containing symbol. */ +#define R_MN10300_TLS_DTPOFF 31 /* Offset in module TLS block. */ +#define R_MN10300_TLS_TPOFF 32 /* Offset in static TLS block. */ +#define R_MN10300_SYM_DIFF 33 /* Adjustment for next reloc as needed + by linker relaxation. */ +#define R_MN10300_ALIGN 34 /* Alignment requirement for linker + relaxation. */ +#define R_MN10300_NUM 35 + + +/* M32R relocs. */ +#define R_M32R_NONE 0 /* No reloc. */ +#define R_M32R_16 1 /* Direct 16 bit. */ +#define R_M32R_32 2 /* Direct 32 bit. */ +#define R_M32R_24 3 /* Direct 24 bit. */ +#define R_M32R_10_PCREL 4 /* PC relative 10 bit shifted. */ +#define R_M32R_18_PCREL 5 /* PC relative 18 bit shifted. */ +#define R_M32R_26_PCREL 6 /* PC relative 26 bit shifted. */ +#define R_M32R_HI16_ULO 7 /* High 16 bit with unsigned low. */ +#define R_M32R_HI16_SLO 8 /* High 16 bit with signed low. */ +#define R_M32R_LO16 9 /* Low 16 bit. */ +#define R_M32R_SDA16 10 /* 16 bit offset in SDA. */ +#define R_M32R_GNU_VTINHERIT 11 +#define R_M32R_GNU_VTENTRY 12 +/* M32R relocs use SHT_RELA. */ +#define R_M32R_16_RELA 33 /* Direct 16 bit. */ +#define R_M32R_32_RELA 34 /* Direct 32 bit. */ +#define R_M32R_24_RELA 35 /* Direct 24 bit. */ +#define R_M32R_10_PCREL_RELA 36 /* PC relative 10 bit shifted. */ +#define R_M32R_18_PCREL_RELA 37 /* PC relative 18 bit shifted. */ +#define R_M32R_26_PCREL_RELA 38 /* PC relative 26 bit shifted. */ +#define R_M32R_HI16_ULO_RELA 39 /* High 16 bit with unsigned low */ +#define R_M32R_HI16_SLO_RELA 40 /* High 16 bit with signed low */ +#define R_M32R_LO16_RELA 41 /* Low 16 bit */ +#define R_M32R_SDA16_RELA 42 /* 16 bit offset in SDA */ +#define R_M32R_RELA_GNU_VTINHERIT 43 +#define R_M32R_RELA_GNU_VTENTRY 44 +#define R_M32R_REL32 45 /* PC relative 32 bit. */ + +#define R_M32R_GOT24 48 /* 24 bit GOT entry */ +#define R_M32R_26_PLTREL 49 /* 26 bit PC relative to PLT shifted */ +#define R_M32R_COPY 50 /* Copy symbol at runtime */ +#define R_M32R_GLOB_DAT 51 /* Create GOT entry */ +#define R_M32R_JMP_SLOT 52 /* Create PLT entry */ +#define R_M32R_RELATIVE 53 /* Adjust by program base */ +#define R_M32R_GOTOFF 54 /* 24 bit offset to GOT */ +#define R_M32R_GOTPC24 55 /* 24 bit PC relative offset to GOT */ +#define R_M32R_GOT16_HI_ULO 56 /* High 16 bit GOT entry with unsigned + low */ +#define R_M32R_GOT16_HI_SLO 57 /* High 16 bit GOT entry with signed + low */ +#define R_M32R_GOT16_LO 58 /* Low 16 bit GOT entry */ +#define R_M32R_GOTPC_HI_ULO 59 /* High 16 bit PC relative offset to + GOT with unsigned low */ +#define R_M32R_GOTPC_HI_SLO 60 /* High 16 bit PC relative offset to + GOT with signed low */ +#define R_M32R_GOTPC_LO 61 /* Low 16 bit PC relative offset to + GOT */ +#define R_M32R_GOTOFF_HI_ULO 62 /* High 16 bit offset to GOT + with unsigned low */ +#define R_M32R_GOTOFF_HI_SLO 63 /* High 16 bit offset to GOT + with signed low */ +#define R_M32R_GOTOFF_LO 64 /* Low 16 bit offset to GOT */ +#define R_M32R_NUM 256 /* Keep this the last entry. */ + + +/* TILEPro relocations. */ +#define R_TILEPRO_NONE 0 /* No reloc */ +#define R_TILEPRO_32 1 /* Direct 32 bit */ +#define R_TILEPRO_16 2 /* Direct 16 bit */ +#define R_TILEPRO_8 3 /* Direct 8 bit */ +#define R_TILEPRO_32_PCREL 4 /* PC relative 32 bit */ +#define R_TILEPRO_16_PCREL 5 /* PC relative 16 bit */ +#define R_TILEPRO_8_PCREL 6 /* PC relative 8 bit */ +#define R_TILEPRO_LO16 7 /* Low 16 bit */ +#define R_TILEPRO_HI16 8 /* High 16 bit */ +#define R_TILEPRO_HA16 9 /* High 16 bit, adjusted */ +#define R_TILEPRO_COPY 10 /* Copy relocation */ +#define R_TILEPRO_GLOB_DAT 11 /* Create GOT entry */ +#define R_TILEPRO_JMP_SLOT 12 /* Create PLT entry */ +#define R_TILEPRO_RELATIVE 13 /* Adjust by program base */ +#define R_TILEPRO_BROFF_X1 14 /* X1 pipe branch offset */ +#define R_TILEPRO_JOFFLONG_X1 15 /* X1 pipe jump offset */ +#define R_TILEPRO_JOFFLONG_X1_PLT 16 /* X1 pipe jump offset to PLT */ +#define R_TILEPRO_IMM8_X0 17 /* X0 pipe 8-bit */ +#define R_TILEPRO_IMM8_Y0 18 /* Y0 pipe 8-bit */ +#define R_TILEPRO_IMM8_X1 19 /* X1 pipe 8-bit */ +#define R_TILEPRO_IMM8_Y1 20 /* Y1 pipe 8-bit */ +#define R_TILEPRO_MT_IMM15_X1 21 /* X1 pipe mtspr */ +#define R_TILEPRO_MF_IMM15_X1 22 /* X1 pipe mfspr */ +#define R_TILEPRO_IMM16_X0 23 /* X0 pipe 16-bit */ +#define R_TILEPRO_IMM16_X1 24 /* X1 pipe 16-bit */ +#define R_TILEPRO_IMM16_X0_LO 25 /* X0 pipe low 16-bit */ +#define R_TILEPRO_IMM16_X1_LO 26 /* X1 pipe low 16-bit */ +#define R_TILEPRO_IMM16_X0_HI 27 /* X0 pipe high 16-bit */ +#define R_TILEPRO_IMM16_X1_HI 28 /* X1 pipe high 16-bit */ +#define R_TILEPRO_IMM16_X0_HA 29 /* X0 pipe high 16-bit, adjusted */ +#define R_TILEPRO_IMM16_X1_HA 30 /* X1 pipe high 16-bit, adjusted */ +#define R_TILEPRO_IMM16_X0_PCREL 31 /* X0 pipe PC relative 16 bit */ +#define R_TILEPRO_IMM16_X1_PCREL 32 /* X1 pipe PC relative 16 bit */ +#define R_TILEPRO_IMM16_X0_LO_PCREL 33 /* X0 pipe PC relative low 16 bit */ +#define R_TILEPRO_IMM16_X1_LO_PCREL 34 /* X1 pipe PC relative low 16 bit */ +#define R_TILEPRO_IMM16_X0_HI_PCREL 35 /* X0 pipe PC relative high 16 bit */ +#define R_TILEPRO_IMM16_X1_HI_PCREL 36 /* X1 pipe PC relative high 16 bit */ +#define R_TILEPRO_IMM16_X0_HA_PCREL 37 /* X0 pipe PC relative ha() 16 bit */ +#define R_TILEPRO_IMM16_X1_HA_PCREL 38 /* X1 pipe PC relative ha() 16 bit */ +#define R_TILEPRO_IMM16_X0_GOT 39 /* X0 pipe 16-bit GOT offset */ +#define R_TILEPRO_IMM16_X1_GOT 40 /* X1 pipe 16-bit GOT offset */ +#define R_TILEPRO_IMM16_X0_GOT_LO 41 /* X0 pipe low 16-bit GOT offset */ +#define R_TILEPRO_IMM16_X1_GOT_LO 42 /* X1 pipe low 16-bit GOT offset */ +#define R_TILEPRO_IMM16_X0_GOT_HI 43 /* X0 pipe high 16-bit GOT offset */ +#define R_TILEPRO_IMM16_X1_GOT_HI 44 /* X1 pipe high 16-bit GOT offset */ +#define R_TILEPRO_IMM16_X0_GOT_HA 45 /* X0 pipe ha() 16-bit GOT offset */ +#define R_TILEPRO_IMM16_X1_GOT_HA 46 /* X1 pipe ha() 16-bit GOT offset */ +#define R_TILEPRO_MMSTART_X0 47 /* X0 pipe mm "start" */ +#define R_TILEPRO_MMEND_X0 48 /* X0 pipe mm "end" */ +#define R_TILEPRO_MMSTART_X1 49 /* X1 pipe mm "start" */ +#define R_TILEPRO_MMEND_X1 50 /* X1 pipe mm "end" */ +#define R_TILEPRO_SHAMT_X0 51 /* X0 pipe shift amount */ +#define R_TILEPRO_SHAMT_X1 52 /* X1 pipe shift amount */ +#define R_TILEPRO_SHAMT_Y0 53 /* Y0 pipe shift amount */ +#define R_TILEPRO_SHAMT_Y1 54 /* Y1 pipe shift amount */ +#define R_TILEPRO_DEST_IMM8_X1 55 /* X1 pipe destination 8-bit */ +/* Relocs 56-59 are currently not defined. */ +#define R_TILEPRO_TLS_GD_CALL 60 /* "jal" for TLS GD */ +#define R_TILEPRO_IMM8_X0_TLS_GD_ADD 61 /* X0 pipe "addi" for TLS GD */ +#define R_TILEPRO_IMM8_X1_TLS_GD_ADD 62 /* X1 pipe "addi" for TLS GD */ +#define R_TILEPRO_IMM8_Y0_TLS_GD_ADD 63 /* Y0 pipe "addi" for TLS GD */ +#define R_TILEPRO_IMM8_Y1_TLS_GD_ADD 64 /* Y1 pipe "addi" for TLS GD */ +#define R_TILEPRO_TLS_IE_LOAD 65 /* "lw_tls" for TLS IE */ +#define R_TILEPRO_IMM16_X0_TLS_GD 66 /* X0 pipe 16-bit TLS GD offset */ +#define R_TILEPRO_IMM16_X1_TLS_GD 67 /* X1 pipe 16-bit TLS GD offset */ +#define R_TILEPRO_IMM16_X0_TLS_GD_LO 68 /* X0 pipe low 16-bit TLS GD offset */ +#define R_TILEPRO_IMM16_X1_TLS_GD_LO 69 /* X1 pipe low 16-bit TLS GD offset */ +#define R_TILEPRO_IMM16_X0_TLS_GD_HI 70 /* X0 pipe high 16-bit TLS GD offset */ +#define R_TILEPRO_IMM16_X1_TLS_GD_HI 71 /* X1 pipe high 16-bit TLS GD offset */ +#define R_TILEPRO_IMM16_X0_TLS_GD_HA 72 /* X0 pipe ha() 16-bit TLS GD offset */ +#define R_TILEPRO_IMM16_X1_TLS_GD_HA 73 /* X1 pipe ha() 16-bit TLS GD offset */ +#define R_TILEPRO_IMM16_X0_TLS_IE 74 /* X0 pipe 16-bit TLS IE offset */ +#define R_TILEPRO_IMM16_X1_TLS_IE 75 /* X1 pipe 16-bit TLS IE offset */ +#define R_TILEPRO_IMM16_X0_TLS_IE_LO 76 /* X0 pipe low 16-bit TLS IE offset */ +#define R_TILEPRO_IMM16_X1_TLS_IE_LO 77 /* X1 pipe low 16-bit TLS IE offset */ +#define R_TILEPRO_IMM16_X0_TLS_IE_HI 78 /* X0 pipe high 16-bit TLS IE offset */ +#define R_TILEPRO_IMM16_X1_TLS_IE_HI 79 /* X1 pipe high 16-bit TLS IE offset */ +#define R_TILEPRO_IMM16_X0_TLS_IE_HA 80 /* X0 pipe ha() 16-bit TLS IE offset */ +#define R_TILEPRO_IMM16_X1_TLS_IE_HA 81 /* X1 pipe ha() 16-bit TLS IE offset */ +#define R_TILEPRO_TLS_DTPMOD32 82 /* ID of module containing symbol */ +#define R_TILEPRO_TLS_DTPOFF32 83 /* Offset in TLS block */ +#define R_TILEPRO_TLS_TPOFF32 84 /* Offset in static TLS block */ +#define R_TILEPRO_IMM16_X0_TLS_LE 85 /* X0 pipe 16-bit TLS LE offset */ +#define R_TILEPRO_IMM16_X1_TLS_LE 86 /* X1 pipe 16-bit TLS LE offset */ +#define R_TILEPRO_IMM16_X0_TLS_LE_LO 87 /* X0 pipe low 16-bit TLS LE offset */ +#define R_TILEPRO_IMM16_X1_TLS_LE_LO 88 /* X1 pipe low 16-bit TLS LE offset */ +#define R_TILEPRO_IMM16_X0_TLS_LE_HI 89 /* X0 pipe high 16-bit TLS LE offset */ +#define R_TILEPRO_IMM16_X1_TLS_LE_HI 90 /* X1 pipe high 16-bit TLS LE offset */ +#define R_TILEPRO_IMM16_X0_TLS_LE_HA 91 /* X0 pipe ha() 16-bit TLS LE offset */ +#define R_TILEPRO_IMM16_X1_TLS_LE_HA 92 /* X1 pipe ha() 16-bit TLS LE offset */ + +#define R_TILEPRO_GNU_VTINHERIT 128 /* GNU C++ vtable hierarchy */ +#define R_TILEPRO_GNU_VTENTRY 129 /* GNU C++ vtable member usage */ + +#define R_TILEPRO_NUM 130 + + +/* TILE-Gx relocations. */ +#define R_TILEGX_NONE 0 /* No reloc */ +#define R_TILEGX_64 1 /* Direct 64 bit */ +#define R_TILEGX_32 2 /* Direct 32 bit */ +#define R_TILEGX_16 3 /* Direct 16 bit */ +#define R_TILEGX_8 4 /* Direct 8 bit */ +#define R_TILEGX_64_PCREL 5 /* PC relative 64 bit */ +#define R_TILEGX_32_PCREL 6 /* PC relative 32 bit */ +#define R_TILEGX_16_PCREL 7 /* PC relative 16 bit */ +#define R_TILEGX_8_PCREL 8 /* PC relative 8 bit */ +#define R_TILEGX_HW0 9 /* hword 0 16-bit */ +#define R_TILEGX_HW1 10 /* hword 1 16-bit */ +#define R_TILEGX_HW2 11 /* hword 2 16-bit */ +#define R_TILEGX_HW3 12 /* hword 3 16-bit */ +#define R_TILEGX_HW0_LAST 13 /* last hword 0 16-bit */ +#define R_TILEGX_HW1_LAST 14 /* last hword 1 16-bit */ +#define R_TILEGX_HW2_LAST 15 /* last hword 2 16-bit */ +#define R_TILEGX_COPY 16 /* Copy relocation */ +#define R_TILEGX_GLOB_DAT 17 /* Create GOT entry */ +#define R_TILEGX_JMP_SLOT 18 /* Create PLT entry */ +#define R_TILEGX_RELATIVE 19 /* Adjust by program base */ +#define R_TILEGX_BROFF_X1 20 /* X1 pipe branch offset */ +#define R_TILEGX_JUMPOFF_X1 21 /* X1 pipe jump offset */ +#define R_TILEGX_JUMPOFF_X1_PLT 22 /* X1 pipe jump offset to PLT */ +#define R_TILEGX_IMM8_X0 23 /* X0 pipe 8-bit */ +#define R_TILEGX_IMM8_Y0 24 /* Y0 pipe 8-bit */ +#define R_TILEGX_IMM8_X1 25 /* X1 pipe 8-bit */ +#define R_TILEGX_IMM8_Y1 26 /* Y1 pipe 8-bit */ +#define R_TILEGX_DEST_IMM8_X1 27 /* X1 pipe destination 8-bit */ +#define R_TILEGX_MT_IMM14_X1 28 /* X1 pipe mtspr */ +#define R_TILEGX_MF_IMM14_X1 29 /* X1 pipe mfspr */ +#define R_TILEGX_MMSTART_X0 30 /* X0 pipe mm "start" */ +#define R_TILEGX_MMEND_X0 31 /* X0 pipe mm "end" */ +#define R_TILEGX_SHAMT_X0 32 /* X0 pipe shift amount */ +#define R_TILEGX_SHAMT_X1 33 /* X1 pipe shift amount */ +#define R_TILEGX_SHAMT_Y0 34 /* Y0 pipe shift amount */ +#define R_TILEGX_SHAMT_Y1 35 /* Y1 pipe shift amount */ +#define R_TILEGX_IMM16_X0_HW0 36 /* X0 pipe hword 0 */ +#define R_TILEGX_IMM16_X1_HW0 37 /* X1 pipe hword 0 */ +#define R_TILEGX_IMM16_X0_HW1 38 /* X0 pipe hword 1 */ +#define R_TILEGX_IMM16_X1_HW1 39 /* X1 pipe hword 1 */ +#define R_TILEGX_IMM16_X0_HW2 40 /* X0 pipe hword 2 */ +#define R_TILEGX_IMM16_X1_HW2 41 /* X1 pipe hword 2 */ +#define R_TILEGX_IMM16_X0_HW3 42 /* X0 pipe hword 3 */ +#define R_TILEGX_IMM16_X1_HW3 43 /* X1 pipe hword 3 */ +#define R_TILEGX_IMM16_X0_HW0_LAST 44 /* X0 pipe last hword 0 */ +#define R_TILEGX_IMM16_X1_HW0_LAST 45 /* X1 pipe last hword 0 */ +#define R_TILEGX_IMM16_X0_HW1_LAST 46 /* X0 pipe last hword 1 */ +#define R_TILEGX_IMM16_X1_HW1_LAST 47 /* X1 pipe last hword 1 */ +#define R_TILEGX_IMM16_X0_HW2_LAST 48 /* X0 pipe last hword 2 */ +#define R_TILEGX_IMM16_X1_HW2_LAST 49 /* X1 pipe last hword 2 */ +#define R_TILEGX_IMM16_X0_HW0_PCREL 50 /* X0 pipe PC relative hword 0 */ +#define R_TILEGX_IMM16_X1_HW0_PCREL 51 /* X1 pipe PC relative hword 0 */ +#define R_TILEGX_IMM16_X0_HW1_PCREL 52 /* X0 pipe PC relative hword 1 */ +#define R_TILEGX_IMM16_X1_HW1_PCREL 53 /* X1 pipe PC relative hword 1 */ +#define R_TILEGX_IMM16_X0_HW2_PCREL 54 /* X0 pipe PC relative hword 2 */ +#define R_TILEGX_IMM16_X1_HW2_PCREL 55 /* X1 pipe PC relative hword 2 */ +#define R_TILEGX_IMM16_X0_HW3_PCREL 56 /* X0 pipe PC relative hword 3 */ +#define R_TILEGX_IMM16_X1_HW3_PCREL 57 /* X1 pipe PC relative hword 3 */ +#define R_TILEGX_IMM16_X0_HW0_LAST_PCREL 58 /* X0 pipe PC-rel last hword 0 */ +#define R_TILEGX_IMM16_X1_HW0_LAST_PCREL 59 /* X1 pipe PC-rel last hword 0 */ +#define R_TILEGX_IMM16_X0_HW1_LAST_PCREL 60 /* X0 pipe PC-rel last hword 1 */ +#define R_TILEGX_IMM16_X1_HW1_LAST_PCREL 61 /* X1 pipe PC-rel last hword 1 */ +#define R_TILEGX_IMM16_X0_HW2_LAST_PCREL 62 /* X0 pipe PC-rel last hword 2 */ +#define R_TILEGX_IMM16_X1_HW2_LAST_PCREL 63 /* X1 pipe PC-rel last hword 2 */ +#define R_TILEGX_IMM16_X0_HW0_GOT 64 /* X0 pipe hword 0 GOT offset */ +#define R_TILEGX_IMM16_X1_HW0_GOT 65 /* X1 pipe hword 0 GOT offset */ +#define R_TILEGX_IMM16_X0_HW0_PLT_PCREL 66 /* X0 pipe PC-rel PLT hword 0 */ +#define R_TILEGX_IMM16_X1_HW0_PLT_PCREL 67 /* X1 pipe PC-rel PLT hword 0 */ +#define R_TILEGX_IMM16_X0_HW1_PLT_PCREL 68 /* X0 pipe PC-rel PLT hword 1 */ +#define R_TILEGX_IMM16_X1_HW1_PLT_PCREL 69 /* X1 pipe PC-rel PLT hword 1 */ +#define R_TILEGX_IMM16_X0_HW2_PLT_PCREL 70 /* X0 pipe PC-rel PLT hword 2 */ +#define R_TILEGX_IMM16_X1_HW2_PLT_PCREL 71 /* X1 pipe PC-rel PLT hword 2 */ +#define R_TILEGX_IMM16_X0_HW0_LAST_GOT 72 /* X0 pipe last hword 0 GOT offset */ +#define R_TILEGX_IMM16_X1_HW0_LAST_GOT 73 /* X1 pipe last hword 0 GOT offset */ +#define R_TILEGX_IMM16_X0_HW1_LAST_GOT 74 /* X0 pipe last hword 1 GOT offset */ +#define R_TILEGX_IMM16_X1_HW1_LAST_GOT 75 /* X1 pipe last hword 1 GOT offset */ +#define R_TILEGX_IMM16_X0_HW3_PLT_PCREL 76 /* X0 pipe PC-rel PLT hword 3 */ +#define R_TILEGX_IMM16_X1_HW3_PLT_PCREL 77 /* X1 pipe PC-rel PLT hword 3 */ +#define R_TILEGX_IMM16_X0_HW0_TLS_GD 78 /* X0 pipe hword 0 TLS GD offset */ +#define R_TILEGX_IMM16_X1_HW0_TLS_GD 79 /* X1 pipe hword 0 TLS GD offset */ +#define R_TILEGX_IMM16_X0_HW0_TLS_LE 80 /* X0 pipe hword 0 TLS LE offset */ +#define R_TILEGX_IMM16_X1_HW0_TLS_LE 81 /* X1 pipe hword 0 TLS LE offset */ +#define R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE 82 /* X0 pipe last hword 0 LE off */ +#define R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE 83 /* X1 pipe last hword 0 LE off */ +#define R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE 84 /* X0 pipe last hword 1 LE off */ +#define R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE 85 /* X1 pipe last hword 1 LE off */ +#define R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD 86 /* X0 pipe last hword 0 GD off */ +#define R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD 87 /* X1 pipe last hword 0 GD off */ +#define R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD 88 /* X0 pipe last hword 1 GD off */ +#define R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD 89 /* X1 pipe last hword 1 GD off */ +/* Relocs 90-91 are currently not defined. */ +#define R_TILEGX_IMM16_X0_HW0_TLS_IE 92 /* X0 pipe hword 0 TLS IE offset */ +#define R_TILEGX_IMM16_X1_HW0_TLS_IE 93 /* X1 pipe hword 0 TLS IE offset */ +#define R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL 94 /* X0 pipe PC-rel PLT last hword 0 */ +#define R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL 95 /* X1 pipe PC-rel PLT last hword 0 */ +#define R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL 96 /* X0 pipe PC-rel PLT last hword 1 */ +#define R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL 97 /* X1 pipe PC-rel PLT last hword 1 */ +#define R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL 98 /* X0 pipe PC-rel PLT last hword 2 */ +#define R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL 99 /* X1 pipe PC-rel PLT last hword 2 */ +#define R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE 100 /* X0 pipe last hword 0 IE off */ +#define R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE 101 /* X1 pipe last hword 0 IE off */ +#define R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE 102 /* X0 pipe last hword 1 IE off */ +#define R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE 103 /* X1 pipe last hword 1 IE off */ +/* Relocs 104-105 are currently not defined. */ +#define R_TILEGX_TLS_DTPMOD64 106 /* 64-bit ID of symbol's module */ +#define R_TILEGX_TLS_DTPOFF64 107 /* 64-bit offset in TLS block */ +#define R_TILEGX_TLS_TPOFF64 108 /* 64-bit offset in static TLS block */ +#define R_TILEGX_TLS_DTPMOD32 109 /* 32-bit ID of symbol's module */ +#define R_TILEGX_TLS_DTPOFF32 110 /* 32-bit offset in TLS block */ +#define R_TILEGX_TLS_TPOFF32 111 /* 32-bit offset in static TLS block */ +#define R_TILEGX_TLS_GD_CALL 112 /* "jal" for TLS GD */ +#define R_TILEGX_IMM8_X0_TLS_GD_ADD 113 /* X0 pipe "addi" for TLS GD */ +#define R_TILEGX_IMM8_X1_TLS_GD_ADD 114 /* X1 pipe "addi" for TLS GD */ +#define R_TILEGX_IMM8_Y0_TLS_GD_ADD 115 /* Y0 pipe "addi" for TLS GD */ +#define R_TILEGX_IMM8_Y1_TLS_GD_ADD 116 /* Y1 pipe "addi" for TLS GD */ +#define R_TILEGX_TLS_IE_LOAD 117 /* "ld_tls" for TLS IE */ +#define R_TILEGX_IMM8_X0_TLS_ADD 118 /* X0 pipe "addi" for TLS GD/IE */ +#define R_TILEGX_IMM8_X1_TLS_ADD 119 /* X1 pipe "addi" for TLS GD/IE */ +#define R_TILEGX_IMM8_Y0_TLS_ADD 120 /* Y0 pipe "addi" for TLS GD/IE */ +#define R_TILEGX_IMM8_Y1_TLS_ADD 121 /* Y1 pipe "addi" for TLS GD/IE */ + +#define R_TILEGX_GNU_VTINHERIT 128 /* GNU C++ vtable hierarchy */ +#define R_TILEGX_GNU_VTENTRY 129 /* GNU C++ vtable member usage */ + +#define R_TILEGX_NUM 130 + + +#endif /* elf.h */ diff --git a/external/TCC/i386-asm.c b/external/TCC/i386-asm.c new file mode 100644 index 00000000..68a78613 --- /dev/null +++ b/external/TCC/i386-asm.c @@ -0,0 +1,1502 @@ +/* + * i386 specific functions for TCC assembler + * + * Copyright (c) 2001, 2002 Fabrice Bellard + * Copyright (c) 2009 Frédéric Feret (x86_64 support) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" + +/* #define NB_ASM_REGS 8 */ +#define MAX_OPERANDS 3 +#define NB_SAVED_REGS 3 + +#define TOK_ASM_first TOK_ASM_clc +#define TOK_ASM_last TOK_ASM_emms +#define TOK_ASM_alllast TOK_ASM_pxor + +#define OPC_JMP 0x01 /* jmp operand */ +#define OPC_B 0x02 /* only used with OPC_WL */ +#define OPC_WL 0x04 /* accepts w, l or no suffix */ +#define OPC_BWL (OPC_B | OPC_WL) /* accepts b, w, l or no suffix */ +#define OPC_REG 0x08 /* register is added to opcode */ +#define OPC_MODRM 0x10 /* modrm encoding */ +#define OPC_FWAIT 0x20 /* add fwait opcode */ +#define OPC_TEST 0x40 /* test opcodes */ +#define OPC_SHIFT 0x80 /* shift opcodes */ +#define OPC_D16 0x0100 /* generate data16 prefix */ +#define OPC_ARITH 0x0200 /* arithmetic opcodes */ +#define OPC_SHORTJMP 0x0400 /* short jmp operand */ +#define OPC_FARITH 0x0800 /* FPU arithmetic opcodes */ +#ifdef TCC_TARGET_X86_64 +# define OPC_WLQ 0x1000 /* accepts w, l, q or no suffix */ +# define OPC_BWLQ (OPC_B | OPC_WLQ) /* accepts b, w, l, q or no suffix */ +# define OPC_WLX OPC_WLQ +#else +# define OPC_WLX OPC_WL +#endif + +#define OPC_GROUP_SHIFT 13 + +/* in order to compress the operand type, we use specific operands and + we or only with EA */ +enum { + OPT_REG8=0, /* warning: value is hardcoded from TOK_ASM_xxx */ + OPT_REG16, /* warning: value is hardcoded from TOK_ASM_xxx */ + OPT_REG32, /* warning: value is hardcoded from TOK_ASM_xxx */ +#ifdef TCC_TARGET_X86_64 + OPT_REG64, /* warning: value is hardcoded from TOK_ASM_xxx */ +#endif + OPT_MMX, /* warning: value is hardcoded from TOK_ASM_xxx */ + OPT_SSE, /* warning: value is hardcoded from TOK_ASM_xxx */ + OPT_CR, /* warning: value is hardcoded from TOK_ASM_xxx */ + OPT_TR, /* warning: value is hardcoded from TOK_ASM_xxx */ + OPT_DB, /* warning: value is hardcoded from TOK_ASM_xxx */ + OPT_SEG, + OPT_ST, + OPT_IM8, + OPT_IM8S, + OPT_IM16, + OPT_IM32, +#ifdef TCC_TARGET_X86_64 + OPT_IM64, +#endif + OPT_EAX, /* %al, %ax, %eax or %rax register */ + OPT_ST0, /* %st(0) register */ + OPT_CL, /* %cl register */ + OPT_DX, /* %dx register */ + OPT_ADDR, /* OP_EA with only offset */ + OPT_INDIR, /* *(expr) */ + /* composite types */ + OPT_COMPOSITE_FIRST, + OPT_IM, /* IM8 | IM16 | IM32 | IM64 */ + OPT_REG, /* REG8 | REG16 | REG32 | REG64 */ + OPT_REGW, /* REG16 | REG32 | REG64 */ + OPT_IMW, /* IM16 | IM32 | IM64 */ +#ifdef TCC_TARGET_X86_64 + OPT_IMNO64, /* IM16 | IM32 */ +#endif + /* can be ored with any OPT_xxx */ + OPT_EA = 0x80 +}; + +#define OP_REG8 (1 << OPT_REG8) +#define OP_REG16 (1 << OPT_REG16) +#define OP_REG32 (1 << OPT_REG32) +#define OP_MMX (1 << OPT_MMX) +#define OP_SSE (1 << OPT_SSE) +#define OP_CR (1 << OPT_CR) +#define OP_TR (1 << OPT_TR) +#define OP_DB (1 << OPT_DB) +#define OP_SEG (1 << OPT_SEG) +#define OP_ST (1 << OPT_ST) +#define OP_IM8 (1 << OPT_IM8) +#define OP_IM8S (1 << OPT_IM8S) +#define OP_IM16 (1 << OPT_IM16) +#define OP_IM32 (1 << OPT_IM32) +#define OP_EAX (1 << OPT_EAX) +#define OP_ST0 (1 << OPT_ST0) +#define OP_CL (1 << OPT_CL) +#define OP_DX (1 << OPT_DX) +#define OP_ADDR (1 << OPT_ADDR) +#define OP_INDIR (1 << OPT_INDIR) +#ifdef TCC_TARGET_X86_64 +# define OP_REG64 (1 << OPT_REG64) +# define OP_IM64 (1 << OPT_IM64) +#else +# define OP_REG64 0 +# define OP_IM64 0 +#endif + +#define OP_EA 0x40000000 +#define OP_REG (OP_REG8 | OP_REG16 | OP_REG32 | OP_REG64) + +#ifdef TCC_TARGET_X86_64 +# define OP_IM OP_IM64 +# define TREG_XAX TREG_RAX +# define TREG_XCX TREG_RCX +# define TREG_XDX TREG_RDX +#else +# define OP_IM OP_IM32 +# define TREG_XAX TREG_EAX +# define TREG_XCX TREG_ECX +# define TREG_XDX TREG_EDX +#endif + +typedef struct ASMInstr { + uint16_t sym; + uint16_t opcode; + uint16_t instr_type; + uint8_t nb_ops; + uint8_t op_type[MAX_OPERANDS]; /* see OP_xxx */ +} ASMInstr; + +typedef struct Operand { + uint32_t type; + int8_t reg; /* register, -1 if none */ + int8_t reg2; /* second register, -1 if none */ + uint8_t shift; + ExprValue e; +} Operand; + +static const uint8_t reg_to_size[9] = { +/* + [OP_REG8] = 0, + [OP_REG16] = 1, + [OP_REG32] = 2, +#ifdef TCC_TARGET_X86_64 + [OP_REG64] = 3, +#endif +*/ + 0, 0, 1, 0, 2, 0, 0, 0, 3 +}; + +#define NB_TEST_OPCODES 30 + +static const uint8_t test_bits[NB_TEST_OPCODES] = { + 0x00, /* o */ + 0x01, /* no */ + 0x02, /* b */ + 0x02, /* c */ + 0x02, /* nae */ + 0x03, /* nb */ + 0x03, /* nc */ + 0x03, /* ae */ + 0x04, /* e */ + 0x04, /* z */ + 0x05, /* ne */ + 0x05, /* nz */ + 0x06, /* be */ + 0x06, /* na */ + 0x07, /* nbe */ + 0x07, /* a */ + 0x08, /* s */ + 0x09, /* ns */ + 0x0a, /* p */ + 0x0a, /* pe */ + 0x0b, /* np */ + 0x0b, /* po */ + 0x0c, /* l */ + 0x0c, /* nge */ + 0x0d, /* nl */ + 0x0d, /* ge */ + 0x0e, /* le */ + 0x0e, /* ng */ + 0x0f, /* nle */ + 0x0f, /* g */ +}; + +static const uint8_t segment_prefixes[] = { + 0x26, /* es */ + 0x2e, /* cs */ + 0x36, /* ss */ + 0x3e, /* ds */ + 0x64, /* fs */ + 0x65 /* gs */ +}; + +static const ASMInstr asm_instrs[] = { +#define ALT(x) x +#define DEF_ASM_OP0(name, opcode) +#define DEF_ASM_OP0L(name, opcode, group, instr_type) { TOK_ASM_ ## name, opcode, (instr_type | group << OPC_GROUP_SHIFT), 0 }, +#define DEF_ASM_OP1(name, opcode, group, instr_type, op0) { TOK_ASM_ ## name, opcode, (instr_type | group << OPC_GROUP_SHIFT), 1, { op0 }}, +#define DEF_ASM_OP2(name, opcode, group, instr_type, op0, op1) { TOK_ASM_ ## name, opcode, (instr_type | group << OPC_GROUP_SHIFT), 2, { op0, op1 }}, +#define DEF_ASM_OP3(name, opcode, group, instr_type, op0, op1, op2) { TOK_ASM_ ## name, opcode, (instr_type | group << OPC_GROUP_SHIFT), 3, { op0, op1, op2 }}, +#ifdef TCC_TARGET_X86_64 +# include "x86_64-asm.h" +#else +# include "i386-asm.h" +#endif + /* last operation */ + { 0, }, +}; + +static const uint16_t op0_codes[] = { +#define ALT(x) +#define DEF_ASM_OP0(x, opcode) opcode, +#define DEF_ASM_OP0L(name, opcode, group, instr_type) +#define DEF_ASM_OP1(name, opcode, group, instr_type, op0) +#define DEF_ASM_OP2(name, opcode, group, instr_type, op0, op1) +#define DEF_ASM_OP3(name, opcode, group, instr_type, op0, op1, op2) +#ifdef TCC_TARGET_X86_64 +# include "x86_64-asm.h" +#else +# include "i386-asm.h" +#endif +}; + +static inline int get_reg_shift(TCCState *s1) +{ + int shift, v; +#ifdef I386_ASM_16 + if (s1->seg_size == 16) + tcc_error("invalid effective address"); +#endif + v = asm_int_expr(s1); + switch(v) { + case 1: + shift = 0; + break; + case 2: + shift = 1; + break; + case 4: + shift = 2; + break; + case 8: + shift = 3; + break; + default: + expect("1, 2, 4 or 8 constant"); + shift = 0; + break; + } + return shift; +} + +static int asm_parse_reg(void) +{ + int reg = 0; + if (tok != '%') + goto error_32; + next(); + if (tok >= TOK_ASM_eax && tok <= TOK_ASM_edi) { + reg = tok - TOK_ASM_eax; +#ifdef TCC_TARGET_X86_64 + } else if (tok >= TOK_ASM_rax && tok <= TOK_ASM_rdi) { + reg = tok - TOK_ASM_rax; +#endif +#ifdef I386_ASM_16 + } else if (tok >= TOK_ASM_ax && tok <= TOK_ASM_di) { + reg = tok - TOK_ASM_ax; +#endif + } else { + error_32: + expect("register"); + } + next(); + return reg; +} + +static void parse_operand(TCCState *s1, Operand *op) +{ + ExprValue e; + int reg, indir; + const char *p; + + indir = 0; + if (tok == '*') { + next(); + indir = OP_INDIR; + } + + if (tok == '%') { + next(); + if (tok >= TOK_ASM_al && tok <= TOK_ASM_db7) { + reg = tok - TOK_ASM_al; + op->type = 1 << (reg >> 3); /* WARNING: do not change constant order */ + op->reg = reg & 7; + if ((op->type & OP_REG) && op->reg == TREG_XAX) + op->type |= OP_EAX; + else if (op->type == OP_REG8 && op->reg == TREG_XCX) + op->type |= OP_CL; + else if (op->type == OP_REG16 && op->reg == TREG_XDX) + op->type |= OP_DX; + } else if (tok >= TOK_ASM_dr0 && tok <= TOK_ASM_dr7) { + op->type = OP_DB; + op->reg = tok - TOK_ASM_dr0; + } else if (tok >= TOK_ASM_es && tok <= TOK_ASM_gs) { + op->type = OP_SEG; + op->reg = tok - TOK_ASM_es; + } else if (tok == TOK_ASM_st) { + op->type = OP_ST; + op->reg = 0; + next(); + if (tok == '(') { + next(); + if (tok != TOK_PPNUM) + goto reg_error; + p = tokc.str.data; + reg = p[0] - '0'; + if ((unsigned)reg >= 8 || p[1] != '\0') + goto reg_error; + op->reg = reg; + next(); + skip(')'); + } + if (op->reg == 0) + op->type |= OP_ST0; + goto no_skip; + } else { + reg_error: + tcc_error("unknown register"); + } + next(); + no_skip: ; + } else if (tok == '$') { + /* constant value */ + next(); + asm_expr(s1, &e); + op->type = OP_IM; + op->e.v = e.v; + op->e.sym = e.sym; + if (!op->e.sym) { + if (op->e.v == (uint8_t)op->e.v) + op->type |= OP_IM8; + if (op->e.v == (int8_t)op->e.v) + op->type |= OP_IM8S; + if (op->e.v == (uint16_t)op->e.v) + op->type |= OP_IM16; +#ifdef TCC_TARGET_X86_64 + if (op->e.v == (uint32_t)op->e.v) + op->type |= OP_IM32; +#endif + } + } else { + /* address(reg,reg2,shift) with all variants */ + op->type = OP_EA; + op->reg = -1; + op->reg2 = -1; + op->shift = 0; + if (tok != '(') { + asm_expr(s1, &e); + op->e.v = e.v; + op->e.sym = e.sym; + } else { + next(); + if (tok == '%') { + unget_tok('('); + op->e.v = 0; + op->e.sym = NULL; + } else { + /* bracketed offset expression */ + asm_expr(s1, &e); + if (tok != ')') + expect(")"); + next(); + op->e.v = e.v; + op->e.sym = e.sym; + } + } + if (tok == '(') { + next(); + if (tok != ',') { + op->reg = asm_parse_reg(); + } + if (tok == ',') { + next(); + if (tok != ',') { + op->reg2 = asm_parse_reg(); + } + if (tok == ',') { + next(); + op->shift = get_reg_shift(s1); + } + } + skip(')'); + } + if (op->reg == -1 && op->reg2 == -1) + op->type |= OP_ADDR; + } + op->type |= indir; +} + +/* XXX: unify with C code output ? */ +ST_FUNC void gen_expr32(ExprValue *pe) +{ + gen_addr32(pe->sym ? VT_SYM : 0, pe->sym, pe->v); +} + +#ifdef TCC_TARGET_X86_64 +static void gen_expr64(ExprValue *pe) +{ + gen_addr64(pe->sym ? VT_SYM : 0, pe->sym, pe->v); +} +#endif + +/* XXX: unify with C code output ? */ +static void gen_disp32(ExprValue *pe) +{ + Sym *sym = pe->sym; + if (sym && sym->r == cur_text_section->sh_num) { + /* same section: we can output an absolute value. Note + that the TCC compiler behaves differently here because + it always outputs a relocation to ease (future) code + elimination in the linker */ + gen_le32(pe->v + sym->jnext - ind - 4); + } else { + if (sym && sym->type.t == VT_VOID) { + sym->type.t = VT_FUNC; + sym->type.ref = NULL; + } + gen_addrpc32(VT_SYM, sym, pe->v); + } +} + +#ifdef I386_ASM_16 +static void gen_expr16(ExprValue *pe) +{ + if (pe->sym) + greloc(cur_text_section, pe->sym, ind, R_386_16); + gen_le16(pe->v); +} +static void gen_disp16(ExprValue *pe) +{ + Sym *sym; + sym = pe->sym; + if (sym) { + if (sym->r == cur_text_section->sh_num) { + /* same section: we can output an absolute value. Note + that the TCC compiler behaves differently here because + it always outputs a relocation to ease (future) code + elimination in the linker */ + gen_le16(pe->v + sym->jnext - ind - 2); + } else { + greloc(cur_text_section, sym, ind, R_386_PC16); + gen_le16(pe->v - 2); + } + } else { + /* put an empty PC32 relocation */ + put_elf_reloc(symtab_section, cur_text_section, + ind, R_386_PC16, 0); + gen_le16(pe->v - 2); + } +} +#endif + +/* generate the modrm operand */ +static inline void asm_modrm(int reg, Operand *op) +{ + int mod, reg1, reg2, sib_reg1; + + if (op->type & (OP_REG | OP_MMX | OP_SSE)) { + g(0xc0 + (reg << 3) + op->reg); + } else if (op->reg == -1 && op->reg2 == -1) { + /* displacement only */ +#ifdef I386_ASM_16 + if (tcc_state->seg_size == 16) { + g(0x06 + (reg << 3)); + gen_expr16(&op->e); + } else if (tcc_state->seg_size == 32) +#endif + { + g(0x05 + (reg << 3)); + gen_expr32(&op->e); + } + } else { + sib_reg1 = op->reg; + /* fist compute displacement encoding */ + if (sib_reg1 == -1) { + sib_reg1 = 5; + mod = 0x00; + } else if (op->e.v == 0 && !op->e.sym && op->reg != 5) { + mod = 0x00; + } else if (op->e.v == (int8_t)op->e.v && !op->e.sym) { + mod = 0x40; + } else { + mod = 0x80; + } + /* compute if sib byte needed */ + reg1 = op->reg; + if (op->reg2 != -1) + reg1 = 4; +#ifdef I386_ASM_16 + if (tcc_state->seg_size == 32) { +#endif + g(mod + (reg << 3) + reg1); + if (reg1 == 4) { + /* add sib byte */ + reg2 = op->reg2; + if (reg2 == -1) + reg2 = 4; /* indicate no index */ + g((op->shift << 6) + (reg2 << 3) + sib_reg1); + } +#ifdef I386_ASM_16 + } else if (tcc_state->seg_size == 16) { + /* edi = 7, esi = 6 --> di = 5, si = 4 */ + if ((reg1 == 6) || (reg1 == 7)) { + reg1 -= 2; + /* ebx = 3 --> bx = 7 */ + } else if (reg1 == 3) { + reg1 = 7; + /* o32 = 5 --> o16 = 6 */ + } else if (reg1 == 5) { + reg1 = 6; + /* sib not valid in 16-bit mode */ + } else if (reg1 == 4) { + reg2 = op->reg2; + /* bp + si + offset */ + if ((sib_reg1 == 5) && (reg2 == 6)) { + reg1 = 2; + /* bp + di + offset */ + } else if ((sib_reg1 == 5) && (reg2 == 7)) { + reg1 = 3; + /* bx + si + offset */ + } else if ((sib_reg1 == 3) && (reg2 == 6)) { + reg1 = 0; + /* bx + di + offset */ + } else if ((sib_reg1 == 3) && (reg2 == 7)) { + reg1 = 1; + } else { + tcc_error("invalid effective address"); + } + if (op->e.v == 0) + mod = 0; + } else { + tcc_error("invalid register"); + } + g(mod + (reg << 3) + reg1); + } +#endif + /* add offset */ + if (mod == 0x40) { + g(op->e.v); + } else if (mod == 0x80 || op->reg == -1) { +#ifdef I386_ASM_16 + if (tcc_state->seg_size == 16) + gen_expr16(&op->e); + else if (tcc_state->seg_size == 32) +#endif + gen_expr32(&op->e); + } + } +} + +ST_FUNC void asm_opcode(TCCState *s1, int opcode) +{ + const ASMInstr *pa; + int i, modrm_index, reg, v, op1, is_short_jmp, seg_prefix; + int nb_ops, s; + Operand ops[MAX_OPERANDS], *pop; + int op_type[3]; /* decoded op type */ +#ifdef I386_ASM_16 + static int a32 = 0, o32 = 0, addr32 = 0, data32 = 0; +#endif + + /* force synthetic ';' after prefix instruction, so we can handle */ + /* one-line things like "rep stosb" instead of only "rep\nstosb" */ + if (opcode >= TOK_ASM_wait && opcode <= TOK_ASM_repnz) + unget_tok(';'); + + /* get operands */ + pop = ops; + nb_ops = 0; + seg_prefix = 0; + for(;;) { + if (tok == ';' || tok == TOK_LINEFEED) + break; + if (nb_ops >= MAX_OPERANDS) { + tcc_error("incorrect number of operands"); + } + parse_operand(s1, pop); + if (tok == ':') { + if (pop->type != OP_SEG || seg_prefix) + tcc_error("incorrect prefix"); + seg_prefix = segment_prefixes[pop->reg]; + next(); + parse_operand(s1, pop); +#ifndef I386_ASM_16 + if (!(pop->type & OP_EA)) { + tcc_error("segment prefix must be followed by memory reference"); + } +#endif + } + pop++; + nb_ops++; + if (tok != ',') + break; + next(); + } + + is_short_jmp = 0; + s = 0; /* avoid warning */ + + /* optimize matching by using a lookup table (no hashing is needed + !) */ + for(pa = asm_instrs; pa->sym != 0; pa++) { + s = 0; + if (pa->instr_type & OPC_FARITH) { + v = opcode - pa->sym; + if (!((unsigned)v < 8 * 6 && (v % 6) == 0)) + continue; + } else if (pa->instr_type & OPC_ARITH) { + if (!(opcode >= pa->sym && opcode < pa->sym + 8*NBWLX)) + continue; + s = (opcode - pa->sym) % NBWLX; + } else if (pa->instr_type & OPC_SHIFT) { + if (!(opcode >= pa->sym && opcode < pa->sym + 7*NBWLX)) + continue; + s = (opcode - pa->sym) % NBWLX; + } else if (pa->instr_type & OPC_TEST) { + if (!(opcode >= pa->sym && opcode < pa->sym + NB_TEST_OPCODES)) + continue; + } else if (pa->instr_type & OPC_B) { + if (!(opcode >= pa->sym && opcode < pa->sym + NBWLX)) + continue; + s = opcode - pa->sym; + } else if (pa->instr_type & OPC_WLX) { + if (!(opcode >= pa->sym && opcode < pa->sym + NBWLX-1)) + continue; + s = opcode - pa->sym + 1; + } else { + if (pa->sym != opcode) + continue; + } + if (pa->nb_ops != nb_ops) + continue; + /* now decode and check each operand */ + for(i = 0; i < nb_ops; i++) { + int op1, op2; + op1 = pa->op_type[i]; + op2 = op1 & 0x1f; + switch(op2) { + case OPT_IM: + v = OP_IM8 | OP_IM16 | OP_IM32 | OP_IM64; + break; + case OPT_REG: + v = OP_REG8 | OP_REG16 | OP_REG32 | OP_REG64; + break; + case OPT_REGW: + v = OP_REG16 | OP_REG32 | OP_REG64; + break; + case OPT_IMW: + v = OP_IM16 | OP_IM32 | OP_IM64; + break; +#ifdef TCC_TARGET_X86_64 + case OPT_IMNO64: + v = OP_IM16 | OP_IM32; + break; +#endif + default: + v = 1 << op2; + break; + } + if (op1 & OPT_EA) + v |= OP_EA; + op_type[i] = v; + if ((ops[i].type & v) == 0) + goto next; + } + /* all is matching ! */ + break; + next: ; + } + if (pa->sym == 0) { + if (opcode >= TOK_ASM_first && opcode <= TOK_ASM_last) { + int b; + b = op0_codes[opcode - TOK_ASM_first]; +#ifdef I386_ASM_16 + if (opcode == TOK_ASM_o32) { + if (s1->seg_size == 32) + tcc_error("incorrect prefix"); + else + o32 = data32 = 1; + } else if (opcode == TOK_ASM_a32) { + if (s1->seg_size == 32) + tcc_error("incorrect prefix"); + else + a32 = addr32 = 1; + } +#endif + if (b & 0xff00) + g(b >> 8); + g(b); + return; + } else if (opcode <= TOK_ASM_alllast) { + tcc_error("bad operand with opcode '%s'", + get_tok_str(opcode, NULL)); + } else { + tcc_error("unknown opcode '%s'", + get_tok_str(opcode, NULL)); + } + } + /* if the size is unknown, then evaluate it (OPC_B or OPC_WL case) */ + if (s == NBWLX-1) { + for(i = 0; s == NBWLX-1 && i < nb_ops; i++) { + if ((ops[i].type & OP_REG) && !(op_type[i] & (OP_CL | OP_DX))) + s = reg_to_size[ops[i].type & OP_REG]; + } + if (s == NBWLX-1) { + if ((opcode == TOK_ASM_push || opcode == TOK_ASM_pop) && + (ops[0].type & (OP_SEG | OP_IM8S | OP_IM32 | OP_IM64))) + s = 2; + else + tcc_error("cannot infer opcode suffix"); + } + } + +#ifdef I386_ASM_16 + for(i = 0; i < nb_ops; i++) { + if (ops[i].type & OP_REG32) { + if (s1->seg_size == 16) + o32 = 1; + } else if (!(ops[i].type & OP_REG32)) { + if (s1->seg_size == 32) + o32 = 1; + } + } + + + if (s == 1 || (pa->instr_type & OPC_D16)) { + if (s1->seg_size == 32) + o32 = 1; + } else if (s == 2) { + if (s1->seg_size == 16) { + if (!(pa->instr_type & OPC_D16)) + o32 = 1; + } + } + + /* generate a16/a32 prefix if needed */ + if ((a32 == 1) && (addr32 == 0)) + g(0x67); + /* generate o16/o32 prefix if needed */ + if ((o32 == 1) && (data32 == 0)) + g(0x66); + + addr32 = data32 = 0; +#else + /* generate data16 prefix if needed */ + if (s == 1 || (pa->instr_type & OPC_D16)) + g(0x66); +#ifdef TCC_TARGET_X86_64 + else if (s == 3) { + /* generate REX prefix */ + if ((opcode != TOK_ASM_push && opcode != TOK_ASM_pop) + || !(ops[0].type & OP_REG64)) + g(0x48); + } +#endif +#endif + + /* now generates the operation */ + if (pa->instr_type & OPC_FWAIT) + g(0x9b); + if (seg_prefix) + g(seg_prefix); + + v = pa->opcode; + if ((v == 0x69 || v == 0x6b) && nb_ops == 2) { + /* kludge for imul $im, %reg */ + nb_ops = 3; + ops[2] = ops[1]; + op_type[2] = op_type[1]; + } else if (v == 0xcd && ops[0].e.v == 3 && !ops[0].e.sym) { + v--; /* int $3 case */ + nb_ops = 0; + } else if ((v == 0x06 || v == 0x07)) { + if (ops[0].reg >= 4) { + /* push/pop %fs or %gs */ + v = 0x0fa0 + (v - 0x06) + ((ops[0].reg - 4) << 3); + } else { + v += ops[0].reg << 3; + } + nb_ops = 0; + } else if (v <= 0x05) { + /* arith case */ + v += ((opcode - TOK_ASM_addb) / NBWLX) << 3; + } else if ((pa->instr_type & (OPC_FARITH | OPC_MODRM)) == OPC_FARITH) { + /* fpu arith case */ + v += ((opcode - pa->sym) / 6) << 3; + } + if (pa->instr_type & OPC_REG) { + for(i = 0; i < nb_ops; i++) { + if (op_type[i] & (OP_REG | OP_ST)) { + v += ops[i].reg; + break; + } + } + /* mov $im, %reg case */ + if (pa->opcode == 0xb0 && s >= 1) + v += 7; + } + if (pa->instr_type & OPC_B) + v += s >= 1; + if (pa->instr_type & OPC_TEST) + v += test_bits[opcode - pa->sym]; + if (pa->instr_type & OPC_SHORTJMP) { + Sym *sym; + int jmp_disp; + + /* see if we can really generate the jump with a byte offset */ + sym = ops[0].e.sym; + if (!sym) + goto no_short_jump; + if (sym->r != cur_text_section->sh_num) + goto no_short_jump; + jmp_disp = ops[0].e.v + sym->jnext - ind - 2; + if (jmp_disp == (int8_t)jmp_disp) { + /* OK to generate jump */ + is_short_jmp = 1; + ops[0].e.v = jmp_disp; + } else { + no_short_jump: + if (pa->instr_type & OPC_JMP) { + /* long jump will be allowed. need to modify the + opcode slightly */ + if (v == 0xeb) + v = 0xe9; + else + v += 0x0f10; + } else { + tcc_error("invalid displacement"); + } + } + } + op1 = v >> 8; + if (op1) + g(op1); + g(v); + + /* search which operand will used for modrm */ + modrm_index = 0; + if (pa->instr_type & OPC_SHIFT) { + reg = (opcode - pa->sym) / NBWLX; + if (reg == 6) + reg = 7; + } else if (pa->instr_type & OPC_ARITH) { + reg = (opcode - pa->sym) / NBWLX; + } else if (pa->instr_type & OPC_FARITH) { + reg = (opcode - pa->sym) / 6; + } else { + reg = (pa->instr_type >> OPC_GROUP_SHIFT) & 7; + } + if (pa->instr_type & OPC_MODRM) { + /* first look for an ea operand */ + for(i = 0;i < nb_ops; i++) { + if (op_type[i] & OP_EA) + goto modrm_found; + } + /* then if not found, a register or indirection (shift instructions) */ + for(i = 0;i < nb_ops; i++) { + if (op_type[i] & (OP_REG | OP_MMX | OP_SSE | OP_INDIR)) + goto modrm_found; + } +#ifdef ASM_DEBUG + tcc_error("bad op table"); +#endif + modrm_found: + modrm_index = i; + /* if a register is used in another operand then it is + used instead of group */ + for(i = 0;i < nb_ops; i++) { + v = op_type[i]; + if (i != modrm_index && + (v & (OP_REG | OP_MMX | OP_SSE | OP_CR | OP_TR | OP_DB | OP_SEG))) { + reg = ops[i].reg; + break; + } + } + + asm_modrm(reg, &ops[modrm_index]); + } + + /* emit constants */ +#ifndef TCC_TARGET_X86_64 + if (pa->opcode == 0x9a || pa->opcode == 0xea) { + /* ljmp or lcall kludge */ +#ifdef I386_ASM_16 + if (s1->seg_size == 16 && o32 == 0) + gen_expr16(&ops[1].e); + else +#endif + gen_expr32(&ops[1].e); + if (ops[0].e.sym) + tcc_error("cannot relocate"); + gen_le16(ops[0].e.v); + return; + } +#endif + for(i = 0;i < nb_ops; i++) { + v = op_type[i]; + if (v & (OP_IM8 | OP_IM16 | OP_IM32 | OP_IM64 | OP_IM8S | OP_ADDR)) { + /* if multiple sizes are given it means we must look + at the op size */ + if ((v | OP_IM8 | OP_IM64) == (OP_IM8 | OP_IM16 | OP_IM32 | OP_IM64)) { + if (s == 0) + v = OP_IM8; + else if (s == 1) + v = OP_IM16; + else if (s == 2 || (v & OP_IM64) == 0) + v = OP_IM32; + else + v = OP_IM64; + } + if (v & (OP_IM8 | OP_IM8S)) { + if (ops[i].e.sym) + goto error_relocate; + g(ops[i].e.v); + } else if (v & OP_IM16) { +#ifdef I386_ASM_16 + if (s1->seg_size == 16) + gen_expr16(&ops[i].e); + else +#endif + if (ops[i].e.sym) + error_relocate: + tcc_error("cannot relocate"); + else + gen_le16(ops[i].e.v); + } else { + if (pa->instr_type & (OPC_JMP | OPC_SHORTJMP)) { + if (is_short_jmp) + g(ops[i].e.v); +#ifdef I386_ASM_16 + else if (s1->seg_size == 16) + gen_disp16(&ops[i].e); +#endif + else + gen_disp32(&ops[i].e); + } else { +#ifdef I386_ASM_16 + if (s1->seg_size == 16 && !((o32 == 1) && (v & OP_IM32))) + gen_expr16(&ops[i].e); + else +#endif +#ifdef TCC_TARGET_X86_64 + if (v & OP_IM64) + gen_expr64(&ops[i].e); + else +#endif + gen_expr32(&ops[i].e); + } + } +#ifdef I386_ASM_16 + } else if (v & (OP_REG16 | OP_REG32)) { + if (pa->instr_type & (OPC_JMP | OPC_SHORTJMP)) { + /* jmp $r */ + g(0xE0 + ops[i].reg); + } +#endif +#ifdef TCC_TARGET_X86_64 + } else if (v & (OP_REG32 | OP_REG64)) { + if (pa->instr_type & (OPC_JMP | OPC_SHORTJMP)) { + /* jmp $r */ + g(0xE0 + ops[i].reg); + } +#endif + } + } +#ifdef I386_ASM_16 + a32 = o32 = 0; +#endif +} + +/* return the constraint priority (we allocate first the lowest + numbered constraints) */ +static inline int constraint_priority(const char *str) +{ + int priority, c, pr; + + /* we take the lowest priority */ + priority = 0; + for(;;) { + c = *str; + if (c == '\0') + break; + str++; + switch(c) { + case 'A': + pr = 0; + break; + case 'a': + case 'b': + case 'c': + case 'd': + case 'S': + case 'D': + pr = 1; + break; + case 'q': + pr = 2; + break; + case 'r': + pr = 3; + break; + case 'N': + case 'M': + case 'I': + case 'i': + case 'm': + case 'g': + pr = 4; + break; + default: + tcc_error("unknown constraint '%c'", c); + pr = 0; + } + if (pr > priority) + priority = pr; + } + return priority; +} + +static const char *skip_constraint_modifiers(const char *p) +{ + while (*p == '=' || *p == '&' || *p == '+' || *p == '%') + p++; + return p; +} + +#define REG_OUT_MASK 0x01 +#define REG_IN_MASK 0x02 + +#define is_reg_allocated(reg) (regs_allocated[reg] & reg_mask) + +ST_FUNC void asm_compute_constraints(ASMOperand *operands, + int nb_operands, int nb_outputs, + const uint8_t *clobber_regs, + int *pout_reg) +{ + ASMOperand *op; + int sorted_op[MAX_ASM_OPERANDS]; + int i, j, k, p1, p2, tmp, reg, c, reg_mask; + const char *str; + uint8_t regs_allocated[NB_ASM_REGS]; + + /* init fields */ + for(i=0;iinput_index = -1; + op->ref_index = -1; + op->reg = -1; + op->is_memory = 0; + op->is_rw = 0; + } + /* compute constraint priority and evaluate references to output + constraints if input constraints */ + for(i=0;iconstraint; + str = skip_constraint_modifiers(str); + if (isnum(*str) || *str == '[') { + /* this is a reference to another constraint */ + k = find_constraint(operands, nb_operands, str, NULL); + if ((unsigned)k >= i || i < nb_outputs) + tcc_error("invalid reference in constraint %d ('%s')", + i, str); + op->ref_index = k; + if (operands[k].input_index >= 0) + tcc_error("cannot reference twice the same operand"); + operands[k].input_index = i; + op->priority = 5; + } else { + op->priority = constraint_priority(str); + } + } + + /* sort operands according to their priority */ + for(i=0;iconstraint; + /* no need to allocate references */ + if (op->ref_index >= 0) + continue; + /* select if register is used for output, input or both */ + if (op->input_index >= 0) { + reg_mask = REG_IN_MASK | REG_OUT_MASK; + } else if (j < nb_outputs) { + reg_mask = REG_OUT_MASK; + } else { + reg_mask = REG_IN_MASK; + } + try_next: + c = *str++; + switch(c) { + case '=': + goto try_next; + case '+': + op->is_rw = 1; + /* FALL THRU */ + case '&': + if (j >= nb_outputs) + tcc_error("'%c' modifier can only be applied to outputs", c); + reg_mask = REG_IN_MASK | REG_OUT_MASK; + goto try_next; + case 'A': + /* allocate both eax and edx */ + if (is_reg_allocated(TREG_XAX) || + is_reg_allocated(TREG_XDX)) + goto try_next; + op->is_llong = 1; + op->reg = TREG_XAX; + regs_allocated[TREG_XAX] |= reg_mask; + regs_allocated[TREG_XDX] |= reg_mask; + break; + case 'a': + reg = TREG_XAX; + goto alloc_reg; + case 'b': + reg = 3; + goto alloc_reg; + case 'c': + reg = TREG_XCX; + goto alloc_reg; + case 'd': + reg = TREG_XDX; + goto alloc_reg; + case 'S': + reg = 6; + goto alloc_reg; + case 'D': + reg = 7; + alloc_reg: + if (is_reg_allocated(reg)) + goto try_next; + goto reg_found; + case 'q': + /* eax, ebx, ecx or edx */ + for(reg = 0; reg < 4; reg++) { + if (!is_reg_allocated(reg)) + goto reg_found; + } + goto try_next; + case 'r': + /* any general register */ + for(reg = 0; reg < 8; reg++) { + if (!is_reg_allocated(reg)) + goto reg_found; + } + goto try_next; + reg_found: + /* now we can reload in the register */ + op->is_llong = 0; + op->reg = reg; + regs_allocated[reg] |= reg_mask; + break; + case 'i': + if (!((op->vt->r & (VT_VALMASK | VT_LVAL)) == VT_CONST)) + goto try_next; + break; + case 'I': + case 'N': + case 'M': + if (!((op->vt->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST)) + goto try_next; + break; + case 'm': + case 'g': + /* nothing special to do because the operand is already in + memory, except if the pointer itself is stored in a + memory variable (VT_LLOCAL case) */ + /* XXX: fix constant case */ + /* if it is a reference to a memory zone, it must lie + in a register, so we reserve the register in the + input registers and a load will be generated + later */ + if (j < nb_outputs || c == 'm') { + if ((op->vt->r & VT_VALMASK) == VT_LLOCAL) { + /* any general register */ + for(reg = 0; reg < 8; reg++) { + if (!(regs_allocated[reg] & REG_IN_MASK)) + goto reg_found1; + } + goto try_next; + reg_found1: + /* now we can reload in the register */ + regs_allocated[reg] |= REG_IN_MASK; + op->reg = reg; + op->is_memory = 1; + } + } + break; + default: + tcc_error("asm constraint %d ('%s') could not be satisfied", + j, op->constraint); + break; + } + /* if a reference is present for that operand, we assign it too */ + if (op->input_index >= 0) { + operands[op->input_index].reg = op->reg; + operands[op->input_index].is_llong = op->is_llong; + } + } + + /* compute out_reg. It is used to store outputs registers to memory + locations references by pointers (VT_LLOCAL case) */ + *pout_reg = -1; + for(i=0;ireg >= 0 && + (op->vt->r & VT_VALMASK) == VT_LLOCAL && + !op->is_memory) { + for(reg = 0; reg < 8; reg++) { + if (!(regs_allocated[reg] & REG_OUT_MASK)) + goto reg_found2; + } + tcc_error("could not find free output register for reloading"); + reg_found2: + *pout_reg = reg; + break; + } + } + + /* print sorted constraints */ +#ifdef ASM_DEBUG + for(i=0;iid ? get_tok_str(op->id, NULL) : "", + op->constraint, + op->vt->r, + op->reg); + } + if (*pout_reg >= 0) + printf("out_reg=%d\n", *pout_reg); +#endif +} + +ST_FUNC void subst_asm_operand(CString *add_str, + SValue *sv, int modifier) +{ + int r, reg, size, val; + char buf[64]; + + r = sv->r; + if ((r & VT_VALMASK) == VT_CONST) { + if (!(r & VT_LVAL) && modifier != 'c' && modifier != 'n') + cstr_ccat(add_str, '$'); + if (r & VT_SYM) { + cstr_cat(add_str, get_tok_str(sv->sym->v, NULL)); + if ((uint32_t)sv->c.i != 0) { + cstr_ccat(add_str, '+'); + } else { + return; + } + } + val = sv->c.i; + if (modifier == 'n') + val = -val; + snprintf(buf, sizeof(buf), "%d", (int)sv->c.i); + cstr_cat(add_str, buf); + } else if ((r & VT_VALMASK) == VT_LOCAL) { + snprintf(buf, sizeof(buf), "%d(%%ebp)", (int)sv->c.i); + cstr_cat(add_str, buf); + } else if (r & VT_LVAL) { + reg = r & VT_VALMASK; + if (reg >= VT_CONST) + tcc_error("internal compiler error"); + snprintf(buf, sizeof(buf), "(%%%s)", + get_tok_str(TOK_ASM_eax + reg, NULL)); + cstr_cat(add_str, buf); + } else { + /* register case */ + reg = r & VT_VALMASK; + if (reg >= VT_CONST) + tcc_error("internal compiler error"); + + /* choose register operand size */ + if ((sv->type.t & VT_BTYPE) == VT_BYTE) + size = 1; + else if ((sv->type.t & VT_BTYPE) == VT_SHORT) + size = 2; +#ifdef TCC_TARGET_X86_64 + else if ((sv->type.t & VT_BTYPE) == VT_LLONG) + size = 8; +#endif + else + size = 4; + if (size == 1 && reg >= 4) + size = 4; + + if (modifier == 'b') { + if (reg >= 4) + tcc_error("cannot use byte register"); + size = 1; + } else if (modifier == 'h') { + if (reg >= 4) + tcc_error("cannot use byte register"); + size = -1; + } else if (modifier == 'w') { + size = 2; +#ifdef TCC_TARGET_X86_64 + } else if (modifier == 'q') { + size = 8; +#endif + } + + switch(size) { + case -1: + reg = TOK_ASM_ah + reg; + break; + case 1: + reg = TOK_ASM_al + reg; + break; + case 2: + reg = TOK_ASM_ax + reg; + break; + default: + reg = TOK_ASM_eax + reg; + break; +#ifdef TCC_TARGET_X86_64 + case 8: + reg = TOK_ASM_rax + reg; + break; +#endif + } + snprintf(buf, sizeof(buf), "%%%s", get_tok_str(reg, NULL)); + cstr_cat(add_str, buf); + } +} + +/* generate prolog and epilog code for asm statement */ +ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, + int nb_outputs, int is_output, + uint8_t *clobber_regs, + int out_reg) +{ + uint8_t regs_allocated[NB_ASM_REGS]; + ASMOperand *op; + int i, reg; + static uint8_t reg_saved[NB_SAVED_REGS] = { 3, 6, 7 }; + + /* mark all used registers */ + memcpy(regs_allocated, clobber_regs, sizeof(regs_allocated)); + for(i = 0; i < nb_operands;i++) { + op = &operands[i]; + if (op->reg >= 0) + regs_allocated[op->reg] = 1; + } + if (!is_output) { + /* generate reg save code */ + for(i = 0; i < NB_SAVED_REGS; i++) { + reg = reg_saved[i]; + if (regs_allocated[reg]) { +#ifdef I386_ASM_16 + if (tcc_state->seg_size == 16) + g(0x66); +#endif + g(0x50 + reg); + } + } + + /* generate load code */ + for(i = 0; i < nb_operands; i++) { + op = &operands[i]; + if (op->reg >= 0) { + if ((op->vt->r & VT_VALMASK) == VT_LLOCAL && + op->is_memory) { + /* memory reference case (for both input and + output cases) */ + SValue sv; + sv = *op->vt; + sv.r = (sv.r & ~VT_VALMASK) | VT_LOCAL; + load(op->reg, &sv); + } else if (i >= nb_outputs || op->is_rw) { + /* load value in register */ + load(op->reg, op->vt); + if (op->is_llong) { + SValue sv; + sv = *op->vt; + sv.c.i += 4; + load(TREG_XDX, &sv); + } + } + } + } + } else { + /* generate save code */ + for(i = 0 ; i < nb_outputs; i++) { + op = &operands[i]; + if (op->reg >= 0) { + if ((op->vt->r & VT_VALMASK) == VT_LLOCAL) { + if (!op->is_memory) { + SValue sv; + sv = *op->vt; + sv.r = (sv.r & ~VT_VALMASK) | VT_LOCAL; + load(out_reg, &sv); + + sv.r = (sv.r & ~VT_VALMASK) | out_reg; + store(op->reg, &sv); + } + } else { + store(op->reg, op->vt); + if (op->is_llong) { + SValue sv; + sv = *op->vt; + sv.c.i += 4; + store(TREG_XDX, &sv); + } + } + } + } + /* generate reg restore code */ + for(i = NB_SAVED_REGS - 1; i >= 0; i--) { + reg = reg_saved[i]; + if (regs_allocated[reg]) { +#ifdef I386_ASM_16 + if (tcc_state->seg_size == 16) + g(0x66); +#endif + g(0x58 + reg); + } + } + } +} + +ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str) +{ + int reg; + TokenSym *ts; + + if (!strcmp(str, "memory") || + !strcmp(str, "cc")) + return; + ts = tok_alloc(str, strlen(str)); + reg = ts->tok; + if (reg >= TOK_ASM_eax && reg <= TOK_ASM_edi) { + reg -= TOK_ASM_eax; + } else if (reg >= TOK_ASM_ax && reg <= TOK_ASM_di) { + reg -= TOK_ASM_ax; +#ifdef TCC_TARGET_X86_64 + } else if (reg >= TOK_ASM_rax && reg <= TOK_ASM_rdi) { + reg -= TOK_ASM_rax; +#endif + } else { + tcc_error("invalid clobber register '%s'", str); + } + clobber_regs[reg] = 1; +} diff --git a/external/TCC/i386-asm.h b/external/TCC/i386-asm.h new file mode 100644 index 00000000..486cffe9 --- /dev/null +++ b/external/TCC/i386-asm.h @@ -0,0 +1,500 @@ + DEF_ASM_OP0(clc, 0xf8) /* must be first OP0 */ + DEF_ASM_OP0(cld, 0xfc) + DEF_ASM_OP0(cli, 0xfa) + DEF_ASM_OP0(clts, 0x0f06) + DEF_ASM_OP0(cmc, 0xf5) + DEF_ASM_OP0(lahf, 0x9f) + DEF_ASM_OP0(sahf, 0x9e) + DEF_ASM_OP0(pusha, 0x60) + DEF_ASM_OP0(popa, 0x61) + DEF_ASM_OP0(pushfl, 0x9c) + DEF_ASM_OP0(popfl, 0x9d) + DEF_ASM_OP0(pushf, 0x9c) + DEF_ASM_OP0(popf, 0x9d) + DEF_ASM_OP0(stc, 0xf9) + DEF_ASM_OP0(std, 0xfd) + DEF_ASM_OP0(sti, 0xfb) + DEF_ASM_OP0(aaa, 0x37) + DEF_ASM_OP0(aas, 0x3f) + DEF_ASM_OP0(daa, 0x27) + DEF_ASM_OP0(das, 0x2f) + DEF_ASM_OP0(aad, 0xd50a) + DEF_ASM_OP0(aam, 0xd40a) + DEF_ASM_OP0(cbw, 0x6698) + DEF_ASM_OP0(cwd, 0x6699) + DEF_ASM_OP0(cwde, 0x98) + DEF_ASM_OP0(cdq, 0x99) + DEF_ASM_OP0(cbtw, 0x6698) + DEF_ASM_OP0(cwtl, 0x98) + DEF_ASM_OP0(cwtd, 0x6699) + DEF_ASM_OP0(cltd, 0x99) + DEF_ASM_OP0(int3, 0xcc) + DEF_ASM_OP0(into, 0xce) + DEF_ASM_OP0(iret, 0xcf) + DEF_ASM_OP0(rsm, 0x0faa) + DEF_ASM_OP0(hlt, 0xf4) + DEF_ASM_OP0(nop, 0x90) + DEF_ASM_OP0(pause, 0xf390) + DEF_ASM_OP0(xlat, 0xd7) + + /* strings */ +ALT(DEF_ASM_OP0L(cmpsb, 0xa6, 0, OPC_BWL)) +ALT(DEF_ASM_OP0L(scmpb, 0xa6, 0, OPC_BWL)) + +ALT(DEF_ASM_OP0L(insb, 0x6c, 0, OPC_BWL)) +ALT(DEF_ASM_OP0L(outsb, 0x6e, 0, OPC_BWL)) + +ALT(DEF_ASM_OP0L(lodsb, 0xac, 0, OPC_BWL)) +ALT(DEF_ASM_OP0L(slodb, 0xac, 0, OPC_BWL)) + +ALT(DEF_ASM_OP0L(movsb, 0xa4, 0, OPC_BWL)) +ALT(DEF_ASM_OP0L(smovb, 0xa4, 0, OPC_BWL)) + +ALT(DEF_ASM_OP0L(scasb, 0xae, 0, OPC_BWL)) +ALT(DEF_ASM_OP0L(sscab, 0xae, 0, OPC_BWL)) + +ALT(DEF_ASM_OP0L(stosb, 0xaa, 0, OPC_BWL)) +ALT(DEF_ASM_OP0L(sstob, 0xaa, 0, OPC_BWL)) + + /* bits */ + +ALT(DEF_ASM_OP2(bsfw, 0x0fbc, 0, OPC_MODRM | OPC_WL, OPT_REGW | OPT_EA, OPT_REGW)) +ALT(DEF_ASM_OP2(bsrw, 0x0fbd, 0, OPC_MODRM | OPC_WL, OPT_REGW | OPT_EA, OPT_REGW)) + +ALT(DEF_ASM_OP2(btw, 0x0fa3, 0, OPC_MODRM | OPC_WL, OPT_REGW, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP2(btw, 0x0fba, 4, OPC_MODRM | OPC_WL, OPT_IM8, OPT_REGW | OPT_EA)) + +ALT(DEF_ASM_OP2(btsw, 0x0fab, 0, OPC_MODRM | OPC_WL, OPT_REGW, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP2(btsw, 0x0fba, 5, OPC_MODRM | OPC_WL, OPT_IM8, OPT_REGW | OPT_EA)) + +ALT(DEF_ASM_OP2(btrw, 0x0fb3, 0, OPC_MODRM | OPC_WL, OPT_REGW, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP2(btrw, 0x0fba, 6, OPC_MODRM | OPC_WL, OPT_IM8, OPT_REGW | OPT_EA)) + +ALT(DEF_ASM_OP2(btcw, 0x0fbb, 0, OPC_MODRM | OPC_WL, OPT_REGW, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP2(btcw, 0x0fba, 7, OPC_MODRM | OPC_WL, OPT_IM8, OPT_REGW | OPT_EA)) + + /* prefixes */ + DEF_ASM_OP0(wait, 0x9b) + DEF_ASM_OP0(fwait, 0x9b) +#ifdef I386_ASM_16 + DEF_ASM_OP0(a32, 0x67) + DEF_ASM_OP0(o32, 0x66) +#else + DEF_ASM_OP0(aword, 0x67) + DEF_ASM_OP0(addr16, 0x67) + ALT(DEF_ASM_OP0(word, 0x66)) + DEF_ASM_OP0(data16, 0x66) +#endif + DEF_ASM_OP0(lock, 0xf0) + DEF_ASM_OP0(rep, 0xf3) + DEF_ASM_OP0(repe, 0xf3) + DEF_ASM_OP0(repz, 0xf3) + DEF_ASM_OP0(repne, 0xf2) + DEF_ASM_OP0(repnz, 0xf2) + + DEF_ASM_OP0(invd, 0x0f08) + DEF_ASM_OP0(wbinvd, 0x0f09) + DEF_ASM_OP0(cpuid, 0x0fa2) + DEF_ASM_OP0(wrmsr, 0x0f30) + DEF_ASM_OP0(rdtsc, 0x0f31) + DEF_ASM_OP0(rdmsr, 0x0f32) + DEF_ASM_OP0(rdpmc, 0x0f33) + DEF_ASM_OP0(ud2, 0x0f0b) + + /* NOTE: we took the same order as gas opcode definition order */ +ALT(DEF_ASM_OP2(movb, 0xa0, 0, OPC_BWL, OPT_ADDR, OPT_EAX)) +ALT(DEF_ASM_OP2(movb, 0xa2, 0, OPC_BWL, OPT_EAX, OPT_ADDR)) +ALT(DEF_ASM_OP2(movb, 0x88, 0, OPC_MODRM | OPC_BWL, OPT_REG, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(movb, 0x8a, 0, OPC_MODRM | OPC_BWL, OPT_EA | OPT_REG, OPT_REG)) +ALT(DEF_ASM_OP2(movb, 0xb0, 0, OPC_REG | OPC_BWL, OPT_IM, OPT_REG)) +ALT(DEF_ASM_OP2(movb, 0xc6, 0, OPC_MODRM | OPC_BWL, OPT_IM, OPT_REG | OPT_EA)) + +ALT(DEF_ASM_OP2(movw, 0x8c, 0, OPC_MODRM | OPC_WL, OPT_SEG, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(movw, 0x8e, 0, OPC_MODRM | OPC_WL, OPT_EA | OPT_REG, OPT_SEG)) + +ALT(DEF_ASM_OP2(movw, 0x0f20, 0, OPC_MODRM | OPC_WL, OPT_CR, OPT_REG32)) +ALT(DEF_ASM_OP2(movw, 0x0f21, 0, OPC_MODRM | OPC_WL, OPT_DB, OPT_REG32)) +ALT(DEF_ASM_OP2(movw, 0x0f24, 0, OPC_MODRM | OPC_WL, OPT_TR, OPT_REG32)) +ALT(DEF_ASM_OP2(movw, 0x0f22, 0, OPC_MODRM | OPC_WL, OPT_REG32, OPT_CR)) +ALT(DEF_ASM_OP2(movw, 0x0f23, 0, OPC_MODRM | OPC_WL, OPT_REG32, OPT_DB)) +ALT(DEF_ASM_OP2(movw, 0x0f26, 0, OPC_MODRM | OPC_WL, OPT_REG32, OPT_TR)) + +ALT(DEF_ASM_OP2(movsbl, 0x0fbe, 0, OPC_MODRM, OPT_REG8 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(movsbw, 0x0fbe, 0, OPC_MODRM | OPC_D16, OPT_REG8 | OPT_EA, OPT_REG16)) +ALT(DEF_ASM_OP2(movswl, 0x0fbf, 0, OPC_MODRM, OPT_REG16 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(movzbw, 0x0fb6, 0, OPC_MODRM | OPC_WL, OPT_REG8 | OPT_EA, OPT_REGW)) +ALT(DEF_ASM_OP2(movzwl, 0x0fb7, 0, OPC_MODRM, OPT_REG16 | OPT_EA, OPT_REG32)) + +ALT(DEF_ASM_OP1(pushw, 0x50, 0, OPC_REG | OPC_WL, OPT_REGW)) +ALT(DEF_ASM_OP1(pushw, 0xff, 6, OPC_MODRM | OPC_WL, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP1(pushw, 0x6a, 0, OPC_WL, OPT_IM8S)) +ALT(DEF_ASM_OP1(pushw, 0x68, 0, OPC_WL, OPT_IM32)) +ALT(DEF_ASM_OP1(pushw, 0x06, 0, OPC_WL, OPT_SEG)) + +ALT(DEF_ASM_OP1(popw, 0x58, 0, OPC_REG | OPC_WL, OPT_REGW)) +ALT(DEF_ASM_OP1(popw, 0x8f, 0, OPC_MODRM | OPC_WL, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP1(popw, 0x07, 0, OPC_WL, OPT_SEG)) + +ALT(DEF_ASM_OP2(xchgw, 0x90, 0, OPC_REG | OPC_WL, OPT_REG, OPT_EAX)) +ALT(DEF_ASM_OP2(xchgw, 0x90, 0, OPC_REG | OPC_WL, OPT_EAX, OPT_REG)) +ALT(DEF_ASM_OP2(xchgb, 0x86, 0, OPC_MODRM | OPC_BWL, OPT_REG, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(xchgb, 0x86, 0, OPC_MODRM | OPC_BWL, OPT_EA | OPT_REG, OPT_REG)) + +ALT(DEF_ASM_OP2(inb, 0xe4, 0, OPC_BWL, OPT_IM8, OPT_EAX)) +ALT(DEF_ASM_OP1(inb, 0xe4, 0, OPC_BWL, OPT_IM8)) +ALT(DEF_ASM_OP2(inb, 0xec, 0, OPC_BWL, OPT_DX, OPT_EAX)) +ALT(DEF_ASM_OP1(inb, 0xec, 0, OPC_BWL, OPT_DX)) + +ALT(DEF_ASM_OP2(outb, 0xe6, 0, OPC_BWL, OPT_EAX, OPT_IM8)) +ALT(DEF_ASM_OP1(outb, 0xe6, 0, OPC_BWL, OPT_IM8)) +ALT(DEF_ASM_OP2(outb, 0xee, 0, OPC_BWL, OPT_EAX, OPT_DX)) +ALT(DEF_ASM_OP1(outb, 0xee, 0, OPC_BWL, OPT_DX)) + +ALT(DEF_ASM_OP2(leaw, 0x8d, 0, OPC_MODRM | OPC_WL, OPT_EA, OPT_REG)) + +ALT(DEF_ASM_OP2(les, 0xc4, 0, OPC_MODRM, OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(lds, 0xc5, 0, OPC_MODRM, OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(lss, 0x0fb2, 0, OPC_MODRM, OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(lfs, 0x0fb4, 0, OPC_MODRM, OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(lgs, 0x0fb5, 0, OPC_MODRM, OPT_EA, OPT_REG32)) + + /* arith */ +ALT(DEF_ASM_OP2(addb, 0x00, 0, OPC_ARITH | OPC_MODRM | OPC_BWL, OPT_REG, OPT_EA | OPT_REG)) /* XXX: use D bit ? */ +ALT(DEF_ASM_OP2(addb, 0x02, 0, OPC_ARITH | OPC_MODRM | OPC_BWL, OPT_EA | OPT_REG, OPT_REG)) +ALT(DEF_ASM_OP2(addb, 0x04, 0, OPC_ARITH | OPC_BWL, OPT_IM, OPT_EAX)) +ALT(DEF_ASM_OP2(addb, 0x80, 0, OPC_ARITH | OPC_MODRM | OPC_BWL, OPT_IM, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(addw, 0x83, 0, OPC_ARITH | OPC_MODRM | OPC_WL, OPT_IM8S, OPT_EA | OPT_REG)) + +ALT(DEF_ASM_OP2(testb, 0x84, 0, OPC_MODRM | OPC_BWL, OPT_EA | OPT_REG, OPT_REG)) +ALT(DEF_ASM_OP2(testb, 0x84, 0, OPC_MODRM | OPC_BWL, OPT_REG, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(testb, 0xa8, 0, OPC_BWL, OPT_IM, OPT_EAX)) +ALT(DEF_ASM_OP2(testb, 0xf6, 0, OPC_MODRM | OPC_BWL, OPT_IM, OPT_EA | OPT_REG)) + +ALT(DEF_ASM_OP1(incw, 0x40, 0, OPC_REG | OPC_WL, OPT_REGW)) +ALT(DEF_ASM_OP1(incb, 0xfe, 0, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP1(decw, 0x48, 0, OPC_REG | OPC_WL, OPT_REGW)) +ALT(DEF_ASM_OP1(decb, 0xfe, 1, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA)) + +ALT(DEF_ASM_OP1(notb, 0xf6, 2, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP1(negb, 0xf6, 3, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA)) + +ALT(DEF_ASM_OP1(mulb, 0xf6, 4, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP1(imulb, 0xf6, 5, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA)) + +ALT(DEF_ASM_OP2(imulw, 0x0faf, 0, OPC_MODRM | OPC_WL, OPT_REG | OPT_EA, OPT_REG)) +ALT(DEF_ASM_OP3(imulw, 0x6b, 0, OPC_MODRM | OPC_WL, OPT_IM8S, OPT_REGW | OPT_EA, OPT_REGW)) +ALT(DEF_ASM_OP2(imulw, 0x6b, 0, OPC_MODRM | OPC_WL, OPT_IM8S, OPT_REGW)) +ALT(DEF_ASM_OP3(imulw, 0x69, 0, OPC_MODRM | OPC_WL, OPT_IMW, OPT_REGW | OPT_EA, OPT_REGW)) +ALT(DEF_ASM_OP2(imulw, 0x69, 0, OPC_MODRM | OPC_WL, OPT_IMW, OPT_REGW)) + +ALT(DEF_ASM_OP1(divb, 0xf6, 6, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP2(divb, 0xf6, 6, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA, OPT_EAX)) +ALT(DEF_ASM_OP1(idivb, 0xf6, 7, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP2(idivb, 0xf6, 7, OPC_MODRM | OPC_BWL, OPT_REG | OPT_EA, OPT_EAX)) + + /* shifts */ +ALT(DEF_ASM_OP2(rolb, 0xc0, 0, OPC_MODRM | OPC_BWL | OPC_SHIFT, OPT_IM8, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(rolb, 0xd2, 0, OPC_MODRM | OPC_BWL | OPC_SHIFT, OPT_CL, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP1(rolb, 0xd0, 0, OPC_MODRM | OPC_BWL | OPC_SHIFT, OPT_EA | OPT_REG)) + +ALT(DEF_ASM_OP3(shldw, 0x0fa4, 0, OPC_MODRM | OPC_WL, OPT_IM8, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP3(shldw, 0x0fa5, 0, OPC_MODRM | OPC_WL, OPT_CL, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP2(shldw, 0x0fa5, 0, OPC_MODRM | OPC_WL, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP3(shrdw, 0x0fac, 0, OPC_MODRM | OPC_WL, OPT_IM8, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP3(shrdw, 0x0fad, 0, OPC_MODRM | OPC_WL, OPT_CL, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP2(shrdw, 0x0fad, 0, OPC_MODRM | OPC_WL, OPT_REGW, OPT_EA | OPT_REGW)) + +ALT(DEF_ASM_OP1(call, 0xff, 2, OPC_MODRM, OPT_INDIR)) +ALT(DEF_ASM_OP1(call, 0xe8, 0, OPC_JMP, OPT_ADDR)) +ALT(DEF_ASM_OP1(jmp, 0xff, 4, OPC_MODRM, OPT_INDIR)) +ALT(DEF_ASM_OP1(jmp, 0xeb, 0, OPC_SHORTJMP | OPC_JMP, OPT_ADDR)) +#ifdef I386_ASM_16 +ALT(DEF_ASM_OP1(jmp, 0xff, 0, OPC_JMP | OPC_WL, OPT_REGW)) +#endif + +ALT(DEF_ASM_OP2(lcall, 0x9a, 0, 0, OPT_IM16, OPT_IM32)) +ALT(DEF_ASM_OP1(lcall, 0xff, 3, 0, OPT_EA)) +ALT(DEF_ASM_OP2(ljmp, 0xea, 0, 0, OPT_IM16, OPT_IM32)) +ALT(DEF_ASM_OP1(ljmp, 0xff, 5, 0, OPT_EA)) + +ALT(DEF_ASM_OP1(int, 0xcd, 0, 0, OPT_IM8)) +ALT(DEF_ASM_OP1(seto, 0x0f90, 0, OPC_MODRM | OPC_TEST, OPT_REG8 | OPT_EA)) +ALT(DEF_ASM_OP1(setob, 0x0f90, 0, OPC_MODRM | OPC_TEST, OPT_REG8 | OPT_EA)) + DEF_ASM_OP2(enter, 0xc8, 0, 0, OPT_IM16, OPT_IM8) + DEF_ASM_OP0(leave, 0xc9) + DEF_ASM_OP0(ret, 0xc3) + DEF_ASM_OP0(retl,0xc3) +ALT(DEF_ASM_OP1(retl,0xc2, 0, 0, OPT_IM16)) +ALT(DEF_ASM_OP1(ret, 0xc2, 0, 0, OPT_IM16)) + DEF_ASM_OP0(lret, 0xcb) +ALT(DEF_ASM_OP1(lret, 0xca, 0, 0, OPT_IM16)) + +ALT(DEF_ASM_OP1(jo, 0x70, 0, OPC_SHORTJMP | OPC_JMP | OPC_TEST, OPT_ADDR)) + DEF_ASM_OP1(loopne, 0xe0, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(loopnz, 0xe0, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(loope, 0xe1, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(loopz, 0xe1, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(loop, 0xe2, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(jecxz, 0xe3, 0, OPC_SHORTJMP, OPT_ADDR) + + /* float */ + /* specific fcomp handling */ +ALT(DEF_ASM_OP0L(fcomp, 0xd8d9, 0, 0)) + +ALT(DEF_ASM_OP1(fadd, 0xd8c0, 0, OPC_FARITH | OPC_REG, OPT_ST)) +ALT(DEF_ASM_OP2(fadd, 0xd8c0, 0, OPC_FARITH | OPC_REG, OPT_ST, OPT_ST0)) +ALT(DEF_ASM_OP2(fadd, 0xdcc0, 0, OPC_FARITH | OPC_REG, OPT_ST0, OPT_ST)) +ALT(DEF_ASM_OP2(fmul, 0xdcc8, 0, OPC_FARITH | OPC_REG, OPT_ST0, OPT_ST)) +ALT(DEF_ASM_OP0L(fadd, 0xdec1, 0, OPC_FARITH)) +ALT(DEF_ASM_OP1(faddp, 0xdec0, 0, OPC_FARITH | OPC_REG, OPT_ST)) +ALT(DEF_ASM_OP2(faddp, 0xdec0, 0, OPC_FARITH | OPC_REG, OPT_ST, OPT_ST0)) +ALT(DEF_ASM_OP2(faddp, 0xdec0, 0, OPC_FARITH | OPC_REG, OPT_ST0, OPT_ST)) +ALT(DEF_ASM_OP0L(faddp, 0xdec1, 0, OPC_FARITH)) +ALT(DEF_ASM_OP1(fadds, 0xd8, 0, OPC_FARITH | OPC_MODRM, OPT_EA)) +ALT(DEF_ASM_OP1(fiaddl, 0xda, 0, OPC_FARITH | OPC_MODRM, OPT_EA)) +ALT(DEF_ASM_OP1(faddl, 0xdc, 0, OPC_FARITH | OPC_MODRM, OPT_EA)) +ALT(DEF_ASM_OP1(fiadds, 0xde, 0, OPC_FARITH | OPC_MODRM, OPT_EA)) + + DEF_ASM_OP0(fucompp, 0xdae9) + DEF_ASM_OP0(ftst, 0xd9e4) + DEF_ASM_OP0(fxam, 0xd9e5) + DEF_ASM_OP0(fld1, 0xd9e8) + DEF_ASM_OP0(fldl2t, 0xd9e9) + DEF_ASM_OP0(fldl2e, 0xd9ea) + DEF_ASM_OP0(fldpi, 0xd9eb) + DEF_ASM_OP0(fldlg2, 0xd9ec) + DEF_ASM_OP0(fldln2, 0xd9ed) + DEF_ASM_OP0(fldz, 0xd9ee) + + DEF_ASM_OP0(f2xm1, 0xd9f0) + DEF_ASM_OP0(fyl2x, 0xd9f1) + DEF_ASM_OP0(fptan, 0xd9f2) + DEF_ASM_OP0(fpatan, 0xd9f3) + DEF_ASM_OP0(fxtract, 0xd9f4) + DEF_ASM_OP0(fprem1, 0xd9f5) + DEF_ASM_OP0(fdecstp, 0xd9f6) + DEF_ASM_OP0(fincstp, 0xd9f7) + DEF_ASM_OP0(fprem, 0xd9f8) + DEF_ASM_OP0(fyl2xp1, 0xd9f9) + DEF_ASM_OP0(fsqrt, 0xd9fa) + DEF_ASM_OP0(fsincos, 0xd9fb) + DEF_ASM_OP0(frndint, 0xd9fc) + DEF_ASM_OP0(fscale, 0xd9fd) + DEF_ASM_OP0(fsin, 0xd9fe) + DEF_ASM_OP0(fcos, 0xd9ff) + DEF_ASM_OP0(fchs, 0xd9e0) + DEF_ASM_OP0(fabs, 0xd9e1) + DEF_ASM_OP0(fninit, 0xdbe3) + DEF_ASM_OP0(fnclex, 0xdbe2) + DEF_ASM_OP0(fnop, 0xd9d0) + + /* fp load */ + DEF_ASM_OP1(fld, 0xd9c0, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(fldl, 0xd9c0, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(flds, 0xd9, 0, OPC_MODRM, OPT_EA) +ALT(DEF_ASM_OP1(fldl, 0xdd, 0, OPC_MODRM, OPT_EA)) + DEF_ASM_OP1(fildl, 0xdb, 0, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fildq, 0xdf, 5, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fildll, 0xdf, 5, OPC_MODRM,OPT_EA) + DEF_ASM_OP1(fldt, 0xdb, 5, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fbld, 0xdf, 4, OPC_MODRM, OPT_EA) + + /* fp store */ + DEF_ASM_OP1(fst, 0xddd0, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(fstl, 0xddd0, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(fsts, 0xd9, 2, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fstps, 0xd9, 3, OPC_MODRM, OPT_EA) +ALT(DEF_ASM_OP1(fstl, 0xdd, 2, OPC_MODRM, OPT_EA)) + DEF_ASM_OP1(fstpl, 0xdd, 3, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fist, 0xdf, 2, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fistp, 0xdf, 3, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fistl, 0xdb, 2, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fistpl, 0xdb, 3, OPC_MODRM, OPT_EA) + + DEF_ASM_OP1(fstp, 0xddd8, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(fistpq, 0xdf, 7, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fistpll, 0xdf, 7, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fstpt, 0xdb, 7, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fbstp, 0xdf, 6, OPC_MODRM, OPT_EA) + + /* exchange */ + DEF_ASM_OP0(fxch, 0xd9c9) +ALT(DEF_ASM_OP1(fxch, 0xd9c8, 0, OPC_REG, OPT_ST)) + + /* misc FPU */ + DEF_ASM_OP1(fucom, 0xdde0, 0, OPC_REG, OPT_ST ) + DEF_ASM_OP1(fucomp, 0xdde8, 0, OPC_REG, OPT_ST ) + + DEF_ASM_OP0L(finit, 0xdbe3, 0, OPC_FWAIT) + DEF_ASM_OP1(fldcw, 0xd9, 5, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fnstcw, 0xd9, 7, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fstcw, 0xd9, 7, OPC_MODRM | OPC_FWAIT, OPT_EA ) + DEF_ASM_OP0(fnstsw, 0xdfe0) +ALT(DEF_ASM_OP1(fnstsw, 0xdfe0, 0, 0, OPT_EAX )) +ALT(DEF_ASM_OP1(fnstsw, 0xdd, 7, OPC_MODRM, OPT_EA )) + DEF_ASM_OP1(fstsw, 0xdfe0, 0, OPC_FWAIT, OPT_EAX ) +ALT(DEF_ASM_OP0L(fstsw, 0xdfe0, 0, OPC_FWAIT)) +ALT(DEF_ASM_OP1(fstsw, 0xdd, 7, OPC_MODRM | OPC_FWAIT, OPT_EA )) + DEF_ASM_OP0L(fclex, 0xdbe2, 0, OPC_FWAIT) + DEF_ASM_OP1(fnstenv, 0xd9, 6, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fstenv, 0xd9, 6, OPC_MODRM | OPC_FWAIT, OPT_EA ) + DEF_ASM_OP1(fldenv, 0xd9, 4, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fnsave, 0xdd, 6, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fsave, 0xdd, 6, OPC_MODRM | OPC_FWAIT, OPT_EA ) + DEF_ASM_OP1(frstor, 0xdd, 4, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(ffree, 0xddc0, 4, OPC_REG, OPT_ST ) + DEF_ASM_OP1(ffreep, 0xdfc0, 4, OPC_REG, OPT_ST ) + DEF_ASM_OP1(fxsave, 0x0fae, 0, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fxrstor, 0x0fae, 1, OPC_MODRM, OPT_EA ) + + /* segments */ + DEF_ASM_OP2(arpl, 0x63, 0, OPC_MODRM, OPT_REG16, OPT_REG16 | OPT_EA) + DEF_ASM_OP2(lar, 0x0f02, 0, OPC_MODRM, OPT_REG32 | OPT_EA, OPT_REG32) + DEF_ASM_OP1(lgdt, 0x0f01, 2, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(lidt, 0x0f01, 3, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(lldt, 0x0f00, 2, OPC_MODRM, OPT_EA | OPT_REG) + DEF_ASM_OP1(lmsw, 0x0f01, 6, OPC_MODRM, OPT_EA | OPT_REG) +ALT(DEF_ASM_OP2(lslw, 0x0f03, 0, OPC_MODRM | OPC_WL, OPT_EA | OPT_REG, OPT_REG)) + DEF_ASM_OP1(ltr, 0x0f00, 3, OPC_MODRM, OPT_EA | OPT_REG) + DEF_ASM_OP1(sgdt, 0x0f01, 0, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(sidt, 0x0f01, 1, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(sldt, 0x0f00, 0, OPC_MODRM, OPT_REG | OPT_EA) + DEF_ASM_OP1(smsw, 0x0f01, 4, OPC_MODRM, OPT_REG | OPT_EA) + DEF_ASM_OP1(str, 0x0f00, 1, OPC_MODRM, OPT_REG16| OPT_EA) + DEF_ASM_OP1(verr, 0x0f00, 4, OPC_MODRM, OPT_REG | OPT_EA) + DEF_ASM_OP1(verw, 0x0f00, 5, OPC_MODRM, OPT_REG | OPT_EA) + +#ifdef I386_ASM_16 + /* 386 */ + DEF_ASM_OP0(loadall386, 0x0f07) +#endif + + /* 486 */ + DEF_ASM_OP1(bswap, 0x0fc8, 0, OPC_REG, OPT_REG32 ) +ALT(DEF_ASM_OP2(xaddb, 0x0fc0, 0, OPC_MODRM | OPC_BWL, OPT_REG, OPT_REG | OPT_EA )) +ALT(DEF_ASM_OP2(cmpxchgb, 0x0fb0, 0, OPC_MODRM | OPC_BWL, OPT_REG, OPT_REG | OPT_EA )) + DEF_ASM_OP1(invlpg, 0x0f01, 7, OPC_MODRM, OPT_EA ) + + DEF_ASM_OP2(boundl, 0x62, 0, OPC_MODRM, OPT_REG32, OPT_EA) + DEF_ASM_OP2(boundw, 0x62, 0, OPC_MODRM | OPC_D16, OPT_REG16, OPT_EA) + + /* pentium */ + DEF_ASM_OP1(cmpxchg8b, 0x0fc7, 1, OPC_MODRM, OPT_EA ) + + /* pentium pro */ + ALT(DEF_ASM_OP2(cmovo, 0x0f40, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +#ifdef I386_ASM_16 +ALT(DEF_ASM_OP2(cmovno, 0x0f41, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovc, 0x0f42, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovnc, 0x0f43, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovz, 0x0f44, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovnz, 0x0f45, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovna, 0x0f46, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmova, 0x0f47, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +#endif + DEF_ASM_OP2(fcmovb, 0xdac0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmove, 0xdac8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovbe, 0xdad0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovu, 0xdad8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovnb, 0xdbc0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovne, 0xdbc8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovnbe, 0xdbd0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovnu, 0xdbd8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + + DEF_ASM_OP2(fucomi, 0xdbe8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcomi, 0xdbf0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fucomip, 0xdfe8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcomip, 0xdff0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + + /* mmx */ + DEF_ASM_OP0(emms, 0x0f77) /* must be last OP0 */ + + DEF_ASM_OP2(movd, 0x0f6e, 0, OPC_MODRM, OPT_EA | OPT_REG32, OPT_MMX ) +ALT(DEF_ASM_OP2(movd, 0x0f7e, 0, OPC_MODRM, OPT_MMX, OPT_EA | OPT_REG32 )) + DEF_ASM_OP2(movq, 0x0f6f, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(movq, 0x0f7f, 0, OPC_MODRM, OPT_MMX, OPT_EA | OPT_MMX )) + DEF_ASM_OP2(packssdw, 0x0f6b, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(packsswb, 0x0f63, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(packuswb, 0x0f67, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddb, 0x0ffc, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddw, 0x0ffd, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddd, 0x0ffe, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddsb, 0x0fec, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddsw, 0x0fed, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddusb, 0x0fdc, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddusw, 0x0fdd, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pand, 0x0fdb, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pandn, 0x0fdf, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpeqb, 0x0f74, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpeqw, 0x0f75, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpeqd, 0x0f76, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpgtb, 0x0f64, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpgtw, 0x0f65, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpgtd, 0x0f66, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pmaddwd, 0x0ff5, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pmulhw, 0x0fe5, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pmullw, 0x0fd5, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(por, 0x0feb, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psllw, 0x0ff1, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psllw, 0x0f71, 6, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(pslld, 0x0ff2, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(pslld, 0x0f72, 6, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psllq, 0x0ff3, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psllq, 0x0f73, 6, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psraw, 0x0fe1, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psraw, 0x0f71, 4, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psrad, 0x0fe2, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psrad, 0x0f72, 4, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psrlw, 0x0fd1, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psrlw, 0x0f71, 2, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psrld, 0x0fd2, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psrld, 0x0f72, 2, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psrlq, 0x0fd3, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psrlq, 0x0f73, 2, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psubb, 0x0ff8, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubw, 0x0ff9, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubd, 0x0ffa, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubsb, 0x0fe8, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubsw, 0x0fe9, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubusb, 0x0fd8, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubusw, 0x0fd9, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpckhbw, 0x0f68, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpckhwd, 0x0f69, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpckhdq, 0x0f6a, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpcklbw, 0x0f60, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpcklwd, 0x0f61, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpckldq, 0x0f62, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pxor, 0x0fef, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + + /* sse */ + DEF_ASM_OP2(movups, 0x0f10, 0, OPC_MODRM, OPT_EA | OPT_REG32, OPT_SSE ) +ALT(DEF_ASM_OP2(movups, 0x0f11, 0, OPC_MODRM, OPT_SSE, OPT_EA | OPT_REG32 )) + DEF_ASM_OP2(movaps, 0x0f28, 0, OPC_MODRM, OPT_EA | OPT_REG32, OPT_SSE ) +ALT(DEF_ASM_OP2(movaps, 0x0f29, 0, OPC_MODRM, OPT_SSE, OPT_EA | OPT_REG32 )) + DEF_ASM_OP2(movhps, 0x0f16, 0, OPC_MODRM, OPT_EA | OPT_REG32, OPT_SSE ) +ALT(DEF_ASM_OP2(movhps, 0x0f17, 0, OPC_MODRM, OPT_SSE, OPT_EA | OPT_REG32 )) + DEF_ASM_OP2(addps, 0x0f58, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(cvtpi2ps, 0x0f2a, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_SSE ) + DEF_ASM_OP2(cvtps2pi, 0x0f2d, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_MMX ) + DEF_ASM_OP2(cvttps2pi, 0x0f2c, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_MMX ) + DEF_ASM_OP2(divps, 0x0f5e, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(maxps, 0x0f5f, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(minps, 0x0f5d, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(mulps, 0x0f59, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(pavgb, 0x0fe0, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(pavgw, 0x0fe3, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(pmaxsw, 0x0fee, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pmaxub, 0x0fde, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pminsw, 0x0fea, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pminub, 0x0fda, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(rcpss, 0x0f53, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(rsqrtps, 0x0f52, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(sqrtps, 0x0f51, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(subps, 0x0f5c, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + +#undef ALT +#undef DEF_ASM_OP0 +#undef DEF_ASM_OP0L +#undef DEF_ASM_OP1 +#undef DEF_ASM_OP2 +#undef DEF_ASM_OP3 diff --git a/external/TCC/i386-gen.c b/external/TCC/i386-gen.c new file mode 100644 index 00000000..c18b9c34 --- /dev/null +++ b/external/TCC/i386-gen.c @@ -0,0 +1,1134 @@ +/* + * X86 code generator for TCC + * + * Copyright (c) 2001-2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifdef TARGET_DEFS_ONLY + +/* number of available registers */ +#define NB_REGS 4 +#define NB_ASM_REGS 8 + +/* a register can belong to several classes. The classes must be + sorted from more general to more precise (see gv2() code which does + assumptions on it). */ +#define RC_INT 0x0001 /* generic integer register */ +#define RC_FLOAT 0x0002 /* generic float register */ +#define RC_EAX 0x0004 +#define RC_ST0 0x0008 +#define RC_ECX 0x0010 +#define RC_EDX 0x0020 +#define RC_IRET RC_EAX /* function return: integer register */ +#define RC_LRET RC_EDX /* function return: second integer register */ +#define RC_FRET RC_ST0 /* function return: float register */ + +/* pretty names for the registers */ +enum { + TREG_EAX = 0, + TREG_ECX, + TREG_EDX, + TREG_ST0, + TREG_ESP = 4 +}; + +/* return registers for function */ +#define REG_IRET TREG_EAX /* single word int return register */ +#define REG_LRET TREG_EDX /* second word return register (for long long) */ +#define REG_FRET TREG_ST0 /* float return register */ + +/* defined if function parameters must be evaluated in reverse order */ +#define INVERT_FUNC_PARAMS + +/* defined if structures are passed as pointers. Otherwise structures + are directly pushed on stack. */ +/* #define FUNC_STRUCT_PARAM_AS_PTR */ + +/* pointer size, in bytes */ +#define PTR_SIZE 4 + +/* long double size and alignment, in bytes */ +#define LDOUBLE_SIZE 12 +#define LDOUBLE_ALIGN 4 +/* maximum alignment (for aligned attribute support) */ +#define MAX_ALIGN 8 + + +#define psym oad + +/******************************************************/ +/* ELF defines */ + +#define EM_TCC_TARGET EM_386 + +/* relocation type for 32 bit data relocation */ +#define R_DATA_32 R_386_32 +#define R_DATA_PTR R_386_32 +#define R_JMP_SLOT R_386_JMP_SLOT +#define R_COPY R_386_COPY + +#define ELF_START_ADDR 0x08048000 +#define ELF_PAGE_SIZE 0x1000 + +/******************************************************/ +#else /* ! TARGET_DEFS_ONLY */ +/******************************************************/ +#include "tcc.h" + +ST_DATA const int reg_classes[NB_REGS] = { + /* eax */ RC_INT | RC_EAX, + /* ecx */ RC_INT | RC_ECX, + /* edx */ RC_INT | RC_EDX, + /* st0 */ RC_FLOAT | RC_ST0, +}; + +static unsigned long func_sub_sp_offset; +static int func_ret_sub; +#ifdef CONFIG_TCC_BCHECK +static addr_t func_bound_offset; +#endif + +/* XXX: make it faster ? */ +ST_FUNC void g(int c) +{ + int ind1; + ind1 = ind + 1; + if (ind1 > cur_text_section->data_allocated) + section_realloc(cur_text_section, ind1); + cur_text_section->data[ind] = c; + ind = ind1; +} + +ST_FUNC void o(unsigned int c) +{ + while (c) { + g(c); + c = c >> 8; + } +} + +ST_FUNC void gen_le16(int v) +{ + g(v); + g(v >> 8); +} + +ST_FUNC void gen_le32(int c) +{ + g(c); + g(c >> 8); + g(c >> 16); + g(c >> 24); +} + +/* output a symbol and patch all calls to it */ +ST_FUNC void gsym_addr(int t, int a) +{ + while (t) { + unsigned char *ptr = cur_text_section->data + t; + uint32_t n = read32le(ptr); /* next value */ + write32le(ptr, a - t - 4); + t = n; + } +} + +ST_FUNC void gsym(int t) +{ + gsym_addr(t, ind); +} + +/* psym is used to put an instruction with a data field which is a + reference to a symbol. It is in fact the same as oad ! */ +#define psym oad + +/* instruction + 4 bytes data. Return the address of the data */ +ST_FUNC int oad(int c, int s) +{ + int ind1; + + o(c); + ind1 = ind + 4; + if (ind1 > cur_text_section->data_allocated) + section_realloc(cur_text_section, ind1); + write32le(cur_text_section->data + ind, s); + s = ind; + ind = ind1; + return s; +} + +/* output constant with relocation if 'r & VT_SYM' is true */ +ST_FUNC void gen_addr32(int r, Sym *sym, int c) +{ + if (r & VT_SYM) + greloc(cur_text_section, sym, ind, R_386_32); + gen_le32(c); +} + +ST_FUNC void gen_addrpc32(int r, Sym *sym, int c) +{ + if (r & VT_SYM) + greloc(cur_text_section, sym, ind, R_386_PC32); + gen_le32(c - 4); +} + +/* generate a modrm reference. 'op_reg' contains the addtionnal 3 + opcode bits */ +static void gen_modrm(int op_reg, int r, Sym *sym, int c) +{ + op_reg = op_reg << 3; + if ((r & VT_VALMASK) == VT_CONST) { + /* constant memory reference */ + o(0x05 | op_reg); + gen_addr32(r, sym, c); + } else if ((r & VT_VALMASK) == VT_LOCAL) { + /* currently, we use only ebp as base */ + if (c == (char)c) { + /* short reference */ + o(0x45 | op_reg); + g(c); + } else { + oad(0x85 | op_reg, c); + } + } else { + g(0x00 | op_reg | (r & VT_VALMASK)); + } +} + +/* load 'r' from value 'sv' */ +ST_FUNC void load(int r, SValue *sv) +{ + int v, t, ft, fc, fr; + SValue v1; + +#ifdef TCC_TARGET_PE + SValue v2; + sv = pe_getimport(sv, &v2); +#endif + + fr = sv->r; + ft = sv->type.t; + fc = sv->c.i; + + v = fr & VT_VALMASK; + if (fr & VT_LVAL) { + if (v == VT_LLOCAL) { + v1.type.t = VT_INT; + v1.r = VT_LOCAL | VT_LVAL; + v1.c.i = fc; + fr = r; + if (!(reg_classes[fr] & RC_INT)) + fr = get_reg(RC_INT); + load(fr, &v1); + } + if ((ft & VT_BTYPE) == VT_FLOAT) { + o(0xd9); /* flds */ + r = 0; + } else if ((ft & VT_BTYPE) == VT_DOUBLE) { + o(0xdd); /* fldl */ + r = 0; + } else if ((ft & VT_BTYPE) == VT_LDOUBLE) { + o(0xdb); /* fldt */ + r = 5; + } else if ((ft & VT_TYPE) == VT_BYTE || (ft & VT_TYPE) == VT_BOOL) { + o(0xbe0f); /* movsbl */ + } else if ((ft & VT_TYPE) == (VT_BYTE | VT_UNSIGNED)) { + o(0xb60f); /* movzbl */ + } else if ((ft & VT_TYPE) == VT_SHORT) { + o(0xbf0f); /* movswl */ + } else if ((ft & VT_TYPE) == (VT_SHORT | VT_UNSIGNED)) { + o(0xb70f); /* movzwl */ + } else { + o(0x8b); /* movl */ + } + gen_modrm(r, fr, sv->sym, fc); + } else { + if (v == VT_CONST) { + o(0xb8 + r); /* mov $xx, r */ + gen_addr32(fr, sv->sym, fc); + } else if (v == VT_LOCAL) { + if (fc) { + o(0x8d); /* lea xxx(%ebp), r */ + gen_modrm(r, VT_LOCAL, sv->sym, fc); + } else { + o(0x89); + o(0xe8 + r); /* mov %ebp, r */ + } + } else if (v == VT_CMP) { + oad(0xb8 + r, 0); /* mov $0, r */ + o(0x0f); /* setxx %br */ + o(fc); + o(0xc0 + r); + } else if (v == VT_JMP || v == VT_JMPI) { + t = v & 1; + oad(0xb8 + r, t); /* mov $1, r */ + o(0x05eb); /* jmp after */ + gsym(fc); + oad(0xb8 + r, t ^ 1); /* mov $0, r */ + } else if (v != r) { + o(0x89); + o(0xc0 + r + v * 8); /* mov v, r */ + } + } +} + +/* store register 'r' in lvalue 'v' */ +ST_FUNC void store(int r, SValue *v) +{ + int fr, bt, ft, fc; + +#ifdef TCC_TARGET_PE + SValue v2; + v = pe_getimport(v, &v2); +#endif + + ft = v->type.t; + fc = v->c.i; + fr = v->r & VT_VALMASK; + bt = ft & VT_BTYPE; + /* XXX: incorrect if float reg to reg */ + if (bt == VT_FLOAT) { + o(0xd9); /* fsts */ + r = 2; + } else if (bt == VT_DOUBLE) { + o(0xdd); /* fstpl */ + r = 2; + } else if (bt == VT_LDOUBLE) { + o(0xc0d9); /* fld %st(0) */ + o(0xdb); /* fstpt */ + r = 7; + } else { + if (bt == VT_SHORT) + o(0x66); + if (bt == VT_BYTE || bt == VT_BOOL) + o(0x88); + else + o(0x89); + } + if (fr == VT_CONST || + fr == VT_LOCAL || + (v->r & VT_LVAL)) { + gen_modrm(r, v->r, v->sym, fc); + } else if (fr != r) { + o(0xc0 + fr + r * 8); /* mov r, fr */ + } +} + +static void gadd_sp(int val) +{ + if (val == (char)val) { + o(0xc483); + g(val); + } else { + oad(0xc481, val); /* add $xxx, %esp */ + } +} + +static void gen_static_call(int v) +{ + Sym *sym; + + sym = external_global_sym(v, &func_old_type, 0); + oad(0xe8, -4); + greloc(cur_text_section, sym, ind-4, R_386_PC32); +} + +/* 'is_jmp' is '1' if it is a jump */ +static void gcall_or_jmp(int is_jmp) +{ + int r; + if ((vtop->r & (VT_VALMASK | VT_LVAL)) == VT_CONST) { + /* constant case */ + if (vtop->r & VT_SYM) { + /* relocation case */ + greloc(cur_text_section, vtop->sym, + ind + 1, R_386_PC32); + } else { + /* put an empty PC32 relocation */ + put_elf_reloc(symtab_section, cur_text_section, + ind + 1, R_386_PC32, 0); + } + oad(0xe8 + is_jmp, vtop->c.i - 4); /* call/jmp im */ + } else { + /* otherwise, indirect call */ + r = gv(RC_INT); + o(0xff); /* call/jmp *r */ + o(0xd0 + r + (is_jmp << 4)); + } +} + +static uint8_t fastcall_regs[3] = { TREG_EAX, TREG_EDX, TREG_ECX }; +static uint8_t fastcallw_regs[2] = { TREG_ECX, TREG_EDX }; + +/* Return the number of registers needed to return the struct, or 0 if + returning via struct pointer. */ +ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *ret_align, int *regsize) +{ +#ifdef TCC_TARGET_PE + int size, align; + + *ret_align = 1; // Never have to re-align return values for x86 + *regsize = 4; + size = type_size(vt, &align); + if (size > 8) { + return 0; + } else if (size > 4) { + ret->ref = NULL; + ret->t = VT_LLONG; + return 1; + } else { + ret->ref = NULL; + ret->t = VT_INT; + return 1; + } +#else + *ret_align = 1; // Never have to re-align return values for x86 + return 0; +#endif +} + +/* Generate function call. The function address is pushed first, then + all the parameters in call order. This functions pops all the + parameters and the function address. */ +ST_FUNC void gfunc_call(int nb_args) +{ + int size, align, r, args_size, i, func_call; + Sym *func_sym; + + args_size = 0; + for(i = 0;i < nb_args; i++) { + if ((vtop->type.t & VT_BTYPE) == VT_STRUCT) { + size = type_size(&vtop->type, &align); + /* align to stack align size */ + size = (size + 3) & ~3; + /* allocate the necessary size on stack */ + oad(0xec81, size); /* sub $xxx, %esp */ + /* generate structure store */ + r = get_reg(RC_INT); + o(0x89); /* mov %esp, r */ + o(0xe0 + r); + vset(&vtop->type, r | VT_LVAL, 0); + vswap(); + vstore(); + args_size += size; + } else if (is_float(vtop->type.t)) { + gv(RC_FLOAT); /* only one float register */ + if ((vtop->type.t & VT_BTYPE) == VT_FLOAT) + size = 4; + else if ((vtop->type.t & VT_BTYPE) == VT_DOUBLE) + size = 8; + else + size = 12; + oad(0xec81, size); /* sub $xxx, %esp */ + if (size == 12) + o(0x7cdb); + else + o(0x5cd9 + size - 4); /* fstp[s|l] 0(%esp) */ + g(0x24); + g(0x00); + args_size += size; + } else { + /* simple type (currently always same size) */ + /* XXX: implicit cast ? */ + r = gv(RC_INT); + if ((vtop->type.t & VT_BTYPE) == VT_LLONG) { + size = 8; + o(0x50 + vtop->r2); /* push r */ + } else { + size = 4; + } + o(0x50 + r); /* push r */ + args_size += size; + } + vtop--; + } + save_regs(0); /* save used temporary registers */ + func_sym = vtop->type.ref; + func_call = func_sym->a.func_call; + /* fast call case */ + if ((func_call >= FUNC_FASTCALL1 && func_call <= FUNC_FASTCALL3) || + func_call == FUNC_FASTCALLW) { + int fastcall_nb_regs; + uint8_t *fastcall_regs_ptr; + if (func_call == FUNC_FASTCALLW) { + fastcall_regs_ptr = fastcallw_regs; + fastcall_nb_regs = 2; + } else { + fastcall_regs_ptr = fastcall_regs; + fastcall_nb_regs = func_call - FUNC_FASTCALL1 + 1; + } + for(i = 0;i < fastcall_nb_regs; i++) { + if (args_size <= 0) + break; + o(0x58 + fastcall_regs_ptr[i]); /* pop r */ + /* XXX: incorrect for struct/floats */ + args_size -= 4; + } + } +#ifndef TCC_TARGET_PE + else if ((vtop->type.ref->type.t & VT_BTYPE) == VT_STRUCT) + args_size -= 4; +#endif + gcall_or_jmp(0); + + if (args_size && func_call != FUNC_STDCALL) + gadd_sp(args_size); + vtop--; +} + +#ifdef TCC_TARGET_PE +#define FUNC_PROLOG_SIZE 10 +#else +#define FUNC_PROLOG_SIZE 9 +#endif + +/* generate function prolog of type 't' */ +ST_FUNC void gfunc_prolog(CType *func_type) +{ + int addr, align, size, func_call, fastcall_nb_regs; + int param_index, param_addr; + uint8_t *fastcall_regs_ptr; + Sym *sym; + CType *type; + + sym = func_type->ref; + func_call = sym->a.func_call; + addr = 8; + loc = 0; + func_vc = 0; + + if (func_call >= FUNC_FASTCALL1 && func_call <= FUNC_FASTCALL3) { + fastcall_nb_regs = func_call - FUNC_FASTCALL1 + 1; + fastcall_regs_ptr = fastcall_regs; + } else if (func_call == FUNC_FASTCALLW) { + fastcall_nb_regs = 2; + fastcall_regs_ptr = fastcallw_regs; + } else { + fastcall_nb_regs = 0; + fastcall_regs_ptr = NULL; + } + param_index = 0; + + ind += FUNC_PROLOG_SIZE; + func_sub_sp_offset = ind; + /* if the function returns a structure, then add an + implicit pointer parameter */ + func_vt = sym->type; + func_var = (sym->c == FUNC_ELLIPSIS); +#ifdef TCC_TARGET_PE + size = type_size(&func_vt,&align); + if (((func_vt.t & VT_BTYPE) == VT_STRUCT) && (size > 8)) { +#else + if ((func_vt.t & VT_BTYPE) == VT_STRUCT) { +#endif + /* XXX: fastcall case ? */ + func_vc = addr; + addr += 4; + param_index++; + } + /* define parameters */ + while ((sym = sym->next) != NULL) { + type = &sym->type; + size = type_size(type, &align); + size = (size + 3) & ~3; +#ifdef FUNC_STRUCT_PARAM_AS_PTR + /* structs are passed as pointer */ + if ((type->t & VT_BTYPE) == VT_STRUCT) { + size = 4; + } +#endif + if (param_index < fastcall_nb_regs) { + /* save FASTCALL register */ + loc -= 4; + o(0x89); /* movl */ + gen_modrm(fastcall_regs_ptr[param_index], VT_LOCAL, NULL, loc); + param_addr = loc; + } else { + param_addr = addr; + addr += size; + } + sym_push(sym->v & ~SYM_FIELD, type, + VT_LOCAL | lvalue_type(type->t), param_addr); + param_index++; + } + func_ret_sub = 0; + /* pascal type call ? */ + if (func_call == FUNC_STDCALL) + func_ret_sub = addr - 8; +#ifndef TCC_TARGET_PE + else if (func_vc) + func_ret_sub = 4; +#endif + +#ifdef CONFIG_TCC_BCHECK + /* leave some room for bound checking code */ + if (tcc_state->do_bounds_check) { + oad(0xb8, 0); /* lbound section pointer */ + oad(0xb8, 0); /* call to function */ + func_bound_offset = lbounds_section->data_offset; + } +#endif +} + +/* generate function epilog */ +ST_FUNC void gfunc_epilog(void) +{ + addr_t v, saved_ind; + +#ifdef CONFIG_TCC_BCHECK + if (tcc_state->do_bounds_check + && func_bound_offset != lbounds_section->data_offset) { + addr_t saved_ind; + addr_t *bounds_ptr; + Sym *sym_data; + /* add end of table info */ + bounds_ptr = section_ptr_add(lbounds_section, sizeof(addr_t)); + *bounds_ptr = 0; + /* generate bound local allocation */ + saved_ind = ind; + ind = func_sub_sp_offset; + sym_data = get_sym_ref(&char_pointer_type, lbounds_section, + func_bound_offset, lbounds_section->data_offset); + greloc(cur_text_section, sym_data, + ind + 1, R_386_32); + oad(0xb8, 0); /* mov %eax, xxx */ + gen_static_call(TOK___bound_local_new); + + ind = saved_ind; + /* generate bound check local freeing */ + o(0x5250); /* save returned value, if any */ + greloc(cur_text_section, sym_data, + ind + 1, R_386_32); + oad(0xb8, 0); /* mov %eax, xxx */ + gen_static_call(TOK___bound_local_delete); + + o(0x585a); /* restore returned value, if any */ + } +#endif + o(0xc9); /* leave */ + if (func_ret_sub == 0) { + o(0xc3); /* ret */ + } else { + o(0xc2); /* ret n */ + g(func_ret_sub); + g(func_ret_sub >> 8); + } + /* align local size to word & save local variables */ + + v = (-loc + 3) & -4; + saved_ind = ind; + ind = func_sub_sp_offset - FUNC_PROLOG_SIZE; +#ifdef TCC_TARGET_PE + if (v >= 4096) { + oad(0xb8, v); /* mov stacksize, %eax */ + gen_static_call(TOK___chkstk); /* call __chkstk, (does the stackframe too) */ + } else +#endif + { + o(0xe58955); /* push %ebp, mov %esp, %ebp */ + o(0xec81); /* sub esp, stacksize */ + gen_le32(v); +#if FUNC_PROLOG_SIZE == 10 + o(0x90); /* adjust to FUNC_PROLOG_SIZE */ +#endif + } + ind = saved_ind; +} + +/* generate a jump to a label */ +ST_FUNC int gjmp(int t) +{ + return psym(0xe9, t); +} + +/* generate a jump to a fixed address */ +ST_FUNC void gjmp_addr(int a) +{ + int r; + r = a - ind - 2; + if (r == (char)r) { + g(0xeb); + g(r); + } else { + oad(0xe9, a - ind - 5); + } +} + +/* generate a test. set 'inv' to invert test. Stack entry is popped */ +ST_FUNC int gtst(int inv, int t) +{ + int v = vtop->r & VT_VALMASK; + if (v == VT_CMP) { + /* fast case : can jump directly since flags are set */ + g(0x0f); + t = psym((vtop->c.i - 16) ^ inv, t); + } else if (v == VT_JMP || v == VT_JMPI) { + /* && or || optimization */ + if ((v & 1) == inv) { + /* insert vtop->c jump list in t */ + uint32_t n1, n = vtop->c.i; + if (n) { + while ((n1 = read32le(cur_text_section->data + n))) + n = n1; + write32le(cur_text_section->data + n, t); + t = vtop->c.i; + } + } else { + t = gjmp(t); + gsym(vtop->c.i); + } + } + vtop--; + return t; +} + +/* generate an integer binary operation */ +ST_FUNC void gen_opi(int op) +{ + int r, fr, opc, c; + + switch(op) { + case '+': + case TOK_ADDC1: /* add with carry generation */ + opc = 0; + gen_op8: + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { + /* constant case */ + vswap(); + r = gv(RC_INT); + vswap(); + c = vtop->c.i; + if (c == (char)c) { + /* generate inc and dec for smaller code */ + if (c==1 && opc==0) { + o (0x40 | r); // inc + } else if (c==1 && opc==5) { + o (0x48 | r); // dec + } else { + o(0x83); + o(0xc0 | (opc << 3) | r); + g(c); + } + } else { + o(0x81); + oad(0xc0 | (opc << 3) | r, c); + } + } else { + gv2(RC_INT, RC_INT); + r = vtop[-1].r; + fr = vtop[0].r; + o((opc << 3) | 0x01); + o(0xc0 + r + fr * 8); + } + vtop--; + if (op >= TOK_ULT && op <= TOK_GT) { + vtop->r = VT_CMP; + vtop->c.i = op; + } + break; + case '-': + case TOK_SUBC1: /* sub with carry generation */ + opc = 5; + goto gen_op8; + case TOK_ADDC2: /* add with carry use */ + opc = 2; + goto gen_op8; + case TOK_SUBC2: /* sub with carry use */ + opc = 3; + goto gen_op8; + case '&': + opc = 4; + goto gen_op8; + case '^': + opc = 6; + goto gen_op8; + case '|': + opc = 1; + goto gen_op8; + case '*': + gv2(RC_INT, RC_INT); + r = vtop[-1].r; + fr = vtop[0].r; + vtop--; + o(0xaf0f); /* imul fr, r */ + o(0xc0 + fr + r * 8); + break; + case TOK_SHL: + opc = 4; + goto gen_shift; + case TOK_SHR: + opc = 5; + goto gen_shift; + case TOK_SAR: + opc = 7; + gen_shift: + opc = 0xc0 | (opc << 3); + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { + /* constant case */ + vswap(); + r = gv(RC_INT); + vswap(); + c = vtop->c.i & 0x1f; + o(0xc1); /* shl/shr/sar $xxx, r */ + o(opc | r); + g(c); + } else { + /* we generate the shift in ecx */ + gv2(RC_INT, RC_ECX); + r = vtop[-1].r; + o(0xd3); /* shl/shr/sar %cl, r */ + o(opc | r); + } + vtop--; + break; + case '/': + case TOK_UDIV: + case TOK_PDIV: + case '%': + case TOK_UMOD: + case TOK_UMULL: + /* first operand must be in eax */ + /* XXX: need better constraint for second operand */ + gv2(RC_EAX, RC_ECX); + r = vtop[-1].r; + fr = vtop[0].r; + vtop--; + save_reg(TREG_EDX); + if (op == TOK_UMULL) { + o(0xf7); /* mul fr */ + o(0xe0 + fr); + vtop->r2 = TREG_EDX; + r = TREG_EAX; + } else { + if (op == TOK_UDIV || op == TOK_UMOD) { + o(0xf7d231); /* xor %edx, %edx, div fr, %eax */ + o(0xf0 + fr); + } else { + o(0xf799); /* cltd, idiv fr, %eax */ + o(0xf8 + fr); + } + if (op == '%' || op == TOK_UMOD) + r = TREG_EDX; + else + r = TREG_EAX; + } + vtop->r = r; + break; + default: + opc = 7; + goto gen_op8; + } +} + +/* generate a floating point operation 'v = t1 op t2' instruction. The + two operands are guaranted to have the same floating point type */ +/* XXX: need to use ST1 too */ +ST_FUNC void gen_opf(int op) +{ + int a, ft, fc, swapped, r; + + /* convert constants to memory references */ + if ((vtop[-1].r & (VT_VALMASK | VT_LVAL)) == VT_CONST) { + vswap(); + gv(RC_FLOAT); + vswap(); + } + if ((vtop[0].r & (VT_VALMASK | VT_LVAL)) == VT_CONST) + gv(RC_FLOAT); + + /* must put at least one value in the floating point register */ + if ((vtop[-1].r & VT_LVAL) && + (vtop[0].r & VT_LVAL)) { + vswap(); + gv(RC_FLOAT); + vswap(); + } + swapped = 0; + /* swap the stack if needed so that t1 is the register and t2 is + the memory reference */ + if (vtop[-1].r & VT_LVAL) { + vswap(); + swapped = 1; + } + if (op >= TOK_ULT && op <= TOK_GT) { + /* load on stack second operand */ + load(TREG_ST0, vtop); + save_reg(TREG_EAX); /* eax is used by FP comparison code */ + if (op == TOK_GE || op == TOK_GT) + swapped = !swapped; + else if (op == TOK_EQ || op == TOK_NE) + swapped = 0; + if (swapped) + o(0xc9d9); /* fxch %st(1) */ + if (op == TOK_EQ || op == TOK_NE) + o(0xe9da); /* fucompp */ + else + o(0xd9de); /* fcompp */ + o(0xe0df); /* fnstsw %ax */ + if (op == TOK_EQ) { + o(0x45e480); /* and $0x45, %ah */ + o(0x40fC80); /* cmp $0x40, %ah */ + } else if (op == TOK_NE) { + o(0x45e480); /* and $0x45, %ah */ + o(0x40f480); /* xor $0x40, %ah */ + op = TOK_NE; + } else if (op == TOK_GE || op == TOK_LE) { + o(0x05c4f6); /* test $0x05, %ah */ + op = TOK_EQ; + } else { + o(0x45c4f6); /* test $0x45, %ah */ + op = TOK_EQ; + } + vtop--; + vtop->r = VT_CMP; + vtop->c.i = op; + } else { + /* no memory reference possible for long double operations */ + if ((vtop->type.t & VT_BTYPE) == VT_LDOUBLE) { + load(TREG_ST0, vtop); + swapped = !swapped; + } + + switch(op) { + default: + case '+': + a = 0; + break; + case '-': + a = 4; + if (swapped) + a++; + break; + case '*': + a = 1; + break; + case '/': + a = 6; + if (swapped) + a++; + break; + } + ft = vtop->type.t; + fc = vtop->c.i; + if ((ft & VT_BTYPE) == VT_LDOUBLE) { + o(0xde); /* fxxxp %st, %st(1) */ + o(0xc1 + (a << 3)); + } else { + /* if saved lvalue, then we must reload it */ + r = vtop->r; + if ((r & VT_VALMASK) == VT_LLOCAL) { + SValue v1; + r = get_reg(RC_INT); + v1.type.t = VT_INT; + v1.r = VT_LOCAL | VT_LVAL; + v1.c.i = fc; + load(r, &v1); + fc = 0; + } + + if ((ft & VT_BTYPE) == VT_DOUBLE) + o(0xdc); + else + o(0xd8); + gen_modrm(a, r, vtop->sym, fc); + } + vtop--; + } +} + +/* convert integers to fp 't' type. Must handle 'int', 'unsigned int' + and 'long long' cases. */ +ST_FUNC void gen_cvt_itof(int t) +{ + save_reg(TREG_ST0); + gv(RC_INT); + if ((vtop->type.t & VT_BTYPE) == VT_LLONG) { + /* signed long long to float/double/long double (unsigned case + is handled generically) */ + o(0x50 + vtop->r2); /* push r2 */ + o(0x50 + (vtop->r & VT_VALMASK)); /* push r */ + o(0x242cdf); /* fildll (%esp) */ + o(0x08c483); /* add $8, %esp */ + } else if ((vtop->type.t & (VT_BTYPE | VT_UNSIGNED)) == + (VT_INT | VT_UNSIGNED)) { + /* unsigned int to float/double/long double */ + o(0x6a); /* push $0 */ + g(0x00); + o(0x50 + (vtop->r & VT_VALMASK)); /* push r */ + o(0x242cdf); /* fildll (%esp) */ + o(0x08c483); /* add $8, %esp */ + } else { + /* int to float/double/long double */ + o(0x50 + (vtop->r & VT_VALMASK)); /* push r */ + o(0x2404db); /* fildl (%esp) */ + o(0x04c483); /* add $4, %esp */ + } + vtop->r = TREG_ST0; +} + +/* convert fp to int 't' type */ +ST_FUNC void gen_cvt_ftoi(int t) +{ + #ifndef COMMIT_4ad186c5ef61_IS_FIXED + /* a good version but it takes a more time to execute */ + gv(RC_FLOAT); + save_reg(TREG_EAX); + save_reg(TREG_EDX); + gen_static_call(TOK___tcc_cvt_ftol); + vtop->r = TREG_EAX; /* mark reg as used */ + if (t == VT_LLONG) + vtop->r2 = TREG_EDX; + #else + /* a new version with a bug: t2a = 44100312 */ + /* + #include + int main() { + int t1 = 176401255; + float f = 0.25f; + int t2a = (int)(t1 * f); // must be 44100313 + int t2b = (int)(t1 * (float)0.25f); + printf("t2a=%d t2b=%d \n",t2a,t2b); + return 0; + } + */ + int bt = vtop->type.t & VT_BTYPE; + if (bt == VT_FLOAT) + vpush_global_sym(&func_old_type, TOK___fixsfdi); + else if (bt == VT_LDOUBLE) + vpush_global_sym(&func_old_type, TOK___fixxfdi); + else + vpush_global_sym(&func_old_type, TOK___fixdfdi); + vswap(); + gfunc_call(1); + vpushi(0); + vtop->r = REG_IRET; + vtop->r2 = REG_LRET; + #endif +} + +/* convert from one floating point type to another */ +ST_FUNC void gen_cvt_ftof(int t) +{ + /* all we have to do on i386 is to put the float in a register */ + gv(RC_FLOAT); +} + +/* computed goto support */ +ST_FUNC void ggoto(void) +{ + gcall_or_jmp(1); + vtop--; +} + +/* bound check support functions */ +#ifdef CONFIG_TCC_BCHECK + +/* generate a bounded pointer addition */ +ST_FUNC void gen_bounded_ptr_add(void) +{ + /* prepare fast i386 function call (args in eax and edx) */ + gv2(RC_EAX, RC_EDX); + /* save all temporary registers */ + vtop -= 2; + save_regs(0); + /* do a fast function call */ + gen_static_call(TOK___bound_ptr_add); + /* returned pointer is in eax */ + vtop++; + vtop->r = TREG_EAX | VT_BOUNDED; + /* address of bounding function call point */ + vtop->c.i = (cur_text_section->reloc->data_offset - sizeof(Elf32_Rel)); +} + +/* patch pointer addition in vtop so that pointer dereferencing is + also tested */ +ST_FUNC void gen_bounded_ptr_deref(void) +{ + addr_t func; + addr_t size, align; + Elf32_Rel *rel; + Sym *sym; + + size = 0; + /* XXX: put that code in generic part of tcc */ + if (!is_float(vtop->type.t)) { + if (vtop->r & VT_LVAL_BYTE) + size = 1; + else if (vtop->r & VT_LVAL_SHORT) + size = 2; + } + if (!size) + size = type_size(&vtop->type, &align); + switch(size) { + case 1: func = TOK___bound_ptr_indir1; break; + case 2: func = TOK___bound_ptr_indir2; break; + case 4: func = TOK___bound_ptr_indir4; break; + case 8: func = TOK___bound_ptr_indir8; break; + case 12: func = TOK___bound_ptr_indir12; break; + case 16: func = TOK___bound_ptr_indir16; break; + default: + tcc_error("unhandled size when dereferencing bounded pointer"); + func = 0; + break; + } + + /* patch relocation */ + /* XXX: find a better solution ? */ + rel = (Elf32_Rel *)(cur_text_section->reloc->data + vtop->c.i); + sym = external_global_sym(func, &func_old_type, 0); + if (!sym->c) + put_extern_sym(sym, NULL, 0, 0); + rel->r_info = ELF32_R_INFO(sym->c, ELF32_R_TYPE(rel->r_info)); +} +#endif + +/* Save the stack pointer onto the stack */ +ST_FUNC void gen_vla_sp_save(int addr) { + /* mov %esp,addr(%ebp)*/ + o(0x89); + gen_modrm(TREG_ESP, VT_LOCAL, NULL, addr); +} + +/* Restore the SP from a location on the stack */ +ST_FUNC void gen_vla_sp_restore(int addr) { + o(0x8b); + gen_modrm(TREG_ESP, VT_LOCAL, NULL, addr); +} + +/* Subtract from the stack pointer, and push the resulting value onto the stack */ +ST_FUNC void gen_vla_alloc(CType *type, int align) { +#ifdef TCC_TARGET_PE + /* alloca does more than just adjust %rsp on Windows */ + vpush_global_sym(&func_old_type, TOK_alloca); + vswap(); /* Move alloca ref past allocation size */ + gfunc_call(1); +#else + int r; + r = gv(RC_INT); /* allocation size */ + /* sub r,%rsp */ + o(0x2b); + o(0xe0 | r); + /* We align to 16 bytes rather than align */ + /* and ~15, %esp */ + o(0xf0e483); + vpop(); +#endif +} + +/* end of X86 code generator */ +/*************************************************************/ +#endif +/*************************************************************/ diff --git a/external/TCC/i386-tok.h b/external/TCC/i386-tok.h new file mode 100644 index 00000000..b0ca3edb --- /dev/null +++ b/external/TCC/i386-tok.h @@ -0,0 +1,244 @@ +/* ------------------------------------------------------------------ */ +/* WARNING: relative order of tokens is important. */ + +/* register */ + DEF_ASM(al) + DEF_ASM(cl) + DEF_ASM(dl) + DEF_ASM(bl) + DEF_ASM(ah) + DEF_ASM(ch) + DEF_ASM(dh) + DEF_ASM(bh) + DEF_ASM(ax) + DEF_ASM(cx) + DEF_ASM(dx) + DEF_ASM(bx) + DEF_ASM(sp) + DEF_ASM(bp) + DEF_ASM(si) + DEF_ASM(di) + DEF_ASM(eax) + DEF_ASM(ecx) + DEF_ASM(edx) + DEF_ASM(ebx) + DEF_ASM(esp) + DEF_ASM(ebp) + DEF_ASM(esi) + DEF_ASM(edi) +#ifdef TCC_TARGET_X86_64 + DEF_ASM(rax) + DEF_ASM(rcx) + DEF_ASM(rdx) + DEF_ASM(rbx) + DEF_ASM(rsp) + DEF_ASM(rbp) + DEF_ASM(rsi) + DEF_ASM(rdi) +#endif + DEF_ASM(mm0) + DEF_ASM(mm1) + DEF_ASM(mm2) + DEF_ASM(mm3) + DEF_ASM(mm4) + DEF_ASM(mm5) + DEF_ASM(mm6) + DEF_ASM(mm7) + DEF_ASM(xmm0) + DEF_ASM(xmm1) + DEF_ASM(xmm2) + DEF_ASM(xmm3) + DEF_ASM(xmm4) + DEF_ASM(xmm5) + DEF_ASM(xmm6) + DEF_ASM(xmm7) + DEF_ASM(cr0) + DEF_ASM(cr1) + DEF_ASM(cr2) + DEF_ASM(cr3) + DEF_ASM(cr4) + DEF_ASM(cr5) + DEF_ASM(cr6) + DEF_ASM(cr7) + DEF_ASM(tr0) + DEF_ASM(tr1) + DEF_ASM(tr2) + DEF_ASM(tr3) + DEF_ASM(tr4) + DEF_ASM(tr5) + DEF_ASM(tr6) + DEF_ASM(tr7) + DEF_ASM(db0) + DEF_ASM(db1) + DEF_ASM(db2) + DEF_ASM(db3) + DEF_ASM(db4) + DEF_ASM(db5) + DEF_ASM(db6) + DEF_ASM(db7) + DEF_ASM(dr0) + DEF_ASM(dr1) + DEF_ASM(dr2) + DEF_ASM(dr3) + DEF_ASM(dr4) + DEF_ASM(dr5) + DEF_ASM(dr6) + DEF_ASM(dr7) + DEF_ASM(es) + DEF_ASM(cs) + DEF_ASM(ss) + DEF_ASM(ds) + DEF_ASM(fs) + DEF_ASM(gs) + DEF_ASM(st) + + /* generic two operands */ + DEF_BWLX(mov) + + DEF_BWLX(add) + DEF_BWLX(or) + DEF_BWLX(adc) + DEF_BWLX(sbb) + DEF_BWLX(and) + DEF_BWLX(sub) + DEF_BWLX(xor) + DEF_BWLX(cmp) + + /* unary ops */ + DEF_BWLX(inc) + DEF_BWLX(dec) + DEF_BWLX(not) + DEF_BWLX(neg) + DEF_BWLX(mul) + DEF_BWLX(imul) + DEF_BWLX(div) + DEF_BWLX(idiv) + + DEF_BWLX(xchg) + DEF_BWLX(test) + + /* shifts */ + DEF_BWLX(rol) + DEF_BWLX(ror) + DEF_BWLX(rcl) + DEF_BWLX(rcr) + DEF_BWLX(shl) + DEF_BWLX(shr) + DEF_BWLX(sar) + + DEF_ASM(shldw) + DEF_ASM(shldl) + DEF_ASM(shld) + DEF_ASM(shrdw) + DEF_ASM(shrdl) + DEF_ASM(shrd) + + DEF_ASM(pushw) + DEF_ASM(pushl) +#ifdef TCC_TARGET_X86_64 + DEF_ASM(pushq) +#endif + DEF_ASM(push) + + DEF_ASM(popw) + DEF_ASM(popl) +#ifdef TCC_TARGET_X86_64 + DEF_ASM(popq) +#endif + DEF_ASM(pop) + + DEF_BWL(in) + DEF_BWL(out) + + DEF_WL(movzb) + DEF_ASM(movzwl) + DEF_ASM(movsbw) + DEF_ASM(movsbl) + DEF_ASM(movswl) +#ifdef TCC_TARGET_X86_64 + DEF_ASM(movslq) +#endif + + DEF_WLX(lea) + + DEF_ASM(les) + DEF_ASM(lds) + DEF_ASM(lss) + DEF_ASM(lfs) + DEF_ASM(lgs) + + DEF_ASM(call) + DEF_ASM(jmp) + DEF_ASM(lcall) + DEF_ASM(ljmp) + + DEF_ASMTEST(j,) + + DEF_ASMTEST(set,) + DEF_ASMTEST(set,b) + DEF_ASMTEST(cmov,) + + DEF_WLX(bsf) + DEF_WLX(bsr) + DEF_WLX(bt) + DEF_WLX(bts) + DEF_WLX(btr) + DEF_WLX(btc) + + DEF_WLX(lsl) + + /* generic FP ops */ + DEF_FP(add) + DEF_FP(mul) + + DEF_ASM(fcom) + DEF_ASM(fcom_1) /* non existent op, just to have a regular table */ + DEF_FP1(com) + + DEF_FP(comp) + DEF_FP(sub) + DEF_FP(subr) + DEF_FP(div) + DEF_FP(divr) + + DEF_BWLX(xadd) + DEF_BWLX(cmpxchg) + + /* string ops */ + DEF_BWLX(cmps) + DEF_BWLX(scmp) + DEF_BWL(ins) + DEF_BWL(outs) + DEF_BWLX(lods) + DEF_BWLX(slod) + DEF_BWLX(movs) + DEF_BWLX(smov) + DEF_BWLX(scas) + DEF_BWLX(ssca) + DEF_BWLX(stos) + DEF_BWLX(ssto) + + /* generic asm ops */ +#define ALT(x) +#define DEF_ASM_OP0(name, opcode) DEF_ASM(name) +#define DEF_ASM_OP0L(name, opcode, group, instr_type) +#define DEF_ASM_OP1(name, opcode, group, instr_type, op0) +#define DEF_ASM_OP2(name, opcode, group, instr_type, op0, op1) +#define DEF_ASM_OP3(name, opcode, group, instr_type, op0, op1, op2) +#ifdef TCC_TARGET_X86_64 +# include "x86_64-asm.h" +#else +# include "i386-asm.h" +#endif + +#define ALT(x) +#define DEF_ASM_OP0(name, opcode) +#define DEF_ASM_OP0L(name, opcode, group, instr_type) DEF_ASM(name) +#define DEF_ASM_OP1(name, opcode, group, instr_type, op0) DEF_ASM(name) +#define DEF_ASM_OP2(name, opcode, group, instr_type, op0, op1) DEF_ASM(name) +#define DEF_ASM_OP3(name, opcode, group, instr_type, op0, op1, op2) DEF_ASM(name) +#ifdef TCC_TARGET_X86_64 +# include "x86_64-asm.h" +#else +# include "i386-asm.h" +#endif diff --git a/external/TCC/il-gen.c b/external/TCC/il-gen.c new file mode 100644 index 00000000..cf3aff53 --- /dev/null +++ b/external/TCC/il-gen.c @@ -0,0 +1,655 @@ +/* + * CIL code generator for TCC + * + * Copyright (c) 2002 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* number of available registers */ +#define NB_REGS 3 + +/* a register can belong to several classes. The classes must be + sorted from more general to more precise (see gv2() code which does + assumptions on it). */ +#define RC_ST 0x0001 /* any stack entry */ +#define RC_ST0 0x0002 /* top of stack */ +#define RC_ST1 0x0004 /* top - 1 */ + +#define RC_INT RC_ST +#define RC_FLOAT RC_ST +#define RC_IRET RC_ST0 /* function return: integer register */ +#define RC_LRET RC_ST0 /* function return: second integer register */ +#define RC_FRET RC_ST0 /* function return: float register */ + +/* pretty names for the registers */ +enum { + REG_ST0 = 0, + REG_ST1, + REG_ST2, +}; + +const int reg_classes[NB_REGS] = { + /* ST0 */ RC_ST | RC_ST0, + /* ST1 */ RC_ST | RC_ST1, + /* ST2 */ RC_ST, +}; + +/* return registers for function */ +#define REG_IRET REG_ST0 /* single word int return register */ +#define REG_LRET REG_ST0 /* second word return register (for long long) */ +#define REG_FRET REG_ST0 /* float return register */ + +/* defined if function parameters must be evaluated in reverse order */ +/* #define INVERT_FUNC_PARAMS */ + +/* defined if structures are passed as pointers. Otherwise structures + are directly pushed on stack. */ +/* #define FUNC_STRUCT_PARAM_AS_PTR */ + +/* pointer size, in bytes */ +#define PTR_SIZE 4 + +/* long double size and alignment, in bytes */ +#define LDOUBLE_SIZE 8 +#define LDOUBLE_ALIGN 8 + +/* function call context */ +typedef struct GFuncContext { + int func_call; /* func call type (FUNC_STDCALL or FUNC_CDECL) */ +} GFuncContext; + +/******************************************************/ +/* opcode definitions */ + +#define IL_OP_PREFIX 0xFE + +enum ILOPCodes { +#define OP(name, str, n) IL_OP_ ## name = n, +#include "il-opcodes.h" +#undef OP +}; + +char *il_opcodes_str[] = { +#define OP(name, str, n) [n] = str, +#include "il-opcodes.h" +#undef OP +}; + +/******************************************************/ + +/* arguments variable numbers start from there */ +#define ARG_BASE 0x70000000 + +static FILE *il_outfile; + +static void out_byte(int c) +{ + *(char *)ind++ = c; +} + +static void out_le32(int c) +{ + out_byte(c); + out_byte(c >> 8); + out_byte(c >> 16); + out_byte(c >> 24); +} + +static void init_outfile(void) +{ + if (!il_outfile) { + il_outfile = stdout; + fprintf(il_outfile, + ".assembly extern mscorlib\n" + "{\n" + ".ver 1:0:2411:0\n" + "}\n\n"); + } +} + +static void out_op1(int op) +{ + if (op & 0x100) + out_byte(IL_OP_PREFIX); + out_byte(op & 0xff); +} + +/* output an opcode with prefix */ +static void out_op(int op) +{ + out_op1(op); + fprintf(il_outfile, " %s\n", il_opcodes_str[op]); +} + +static void out_opb(int op, int c) +{ + out_op1(op); + out_byte(c); + fprintf(il_outfile, " %s %d\n", il_opcodes_str[op], c); +} + +static void out_opi(int op, int c) +{ + out_op1(op); + out_le32(c); + fprintf(il_outfile, " %s 0x%x\n", il_opcodes_str[op], c); +} + +/* XXX: not complete */ +static void il_type_to_str(char *buf, int buf_size, + int t, const char *varstr) +{ + int bt; + Sym *s, *sa; + char buf1[256]; + const char *tstr; + + t = t & VT_TYPE; + bt = t & VT_BTYPE; + buf[0] = '\0'; + if (t & VT_UNSIGNED) + pstrcat(buf, buf_size, "unsigned "); + switch(bt) { + case VT_VOID: + tstr = "void"; + goto add_tstr; + case VT_BOOL: + tstr = "bool"; + goto add_tstr; + case VT_BYTE: + tstr = "int8"; + goto add_tstr; + case VT_SHORT: + tstr = "int16"; + goto add_tstr; + case VT_ENUM: + case VT_INT: + case VT_LONG: + tstr = "int32"; + goto add_tstr; + case VT_LLONG: + tstr = "int64"; + goto add_tstr; + case VT_FLOAT: + tstr = "float32"; + goto add_tstr; + case VT_DOUBLE: + case VT_LDOUBLE: + tstr = "float64"; + add_tstr: + pstrcat(buf, buf_size, tstr); + break; + case VT_STRUCT: + tcc_error("structures not handled yet"); + break; + case VT_FUNC: + s = sym_find((unsigned)t >> VT_STRUCT_SHIFT); + il_type_to_str(buf, buf_size, s->t, varstr); + pstrcat(buf, buf_size, "("); + sa = s->next; + while (sa != NULL) { + il_type_to_str(buf1, sizeof(buf1), sa->t, NULL); + pstrcat(buf, buf_size, buf1); + sa = sa->next; + if (sa) + pstrcat(buf, buf_size, ", "); + } + pstrcat(buf, buf_size, ")"); + goto no_var; + case VT_PTR: + s = sym_find((unsigned)t >> VT_STRUCT_SHIFT); + pstrcpy(buf1, sizeof(buf1), "*"); + if (varstr) + pstrcat(buf1, sizeof(buf1), varstr); + il_type_to_str(buf, buf_size, s->t, buf1); + goto no_var; + } + if (varstr) { + pstrcat(buf, buf_size, " "); + pstrcat(buf, buf_size, varstr); + } + no_var: ; +} + + +/* patch relocation entry with value 'val' */ +void greloc_patch1(Reloc *p, int val) +{ +} + +/* output a symbol and patch all calls to it */ +void gsym_addr(t, a) +{ +} + +/* output jump and return symbol */ +static int out_opj(int op, int c) +{ + out_op1(op); + out_le32(0); + if (c == 0) { + c = ind - (int)cur_text_section->data; + } + fprintf(il_outfile, " %s L%d\n", il_opcodes_str[op], c); + return c; +} + +void gsym(int t) +{ + fprintf(il_outfile, "L%d:\n", t); +} + +/* load 'r' from value 'sv' */ +void load(int r, SValue *sv) +{ + int v, fc, ft; + + v = sv->r & VT_VALMASK; + fc = sv->c.i; + ft = sv->t; + + if (sv->r & VT_LVAL) { + if (v == VT_LOCAL) { + if (fc >= ARG_BASE) { + fc -= ARG_BASE; + if (fc >= 0 && fc <= 4) { + out_op(IL_OP_LDARG_0 + fc); + } else if (fc <= 0xff) { + out_opb(IL_OP_LDARG_S, fc); + } else { + out_opi(IL_OP_LDARG, fc); + } + } else { + if (fc >= 0 && fc <= 4) { + out_op(IL_OP_LDLOC_0 + fc); + } else if (fc <= 0xff) { + out_opb(IL_OP_LDLOC_S, fc); + } else { + out_opi(IL_OP_LDLOC, fc); + } + } + } else if (v == VT_CONST) { + /* XXX: handle globals */ + out_opi(IL_OP_LDSFLD, 0); + } else { + if ((ft & VT_BTYPE) == VT_FLOAT) { + out_op(IL_OP_LDIND_R4); + } else if ((ft & VT_BTYPE) == VT_DOUBLE) { + out_op(IL_OP_LDIND_R8); + } else if ((ft & VT_BTYPE) == VT_LDOUBLE) { + out_op(IL_OP_LDIND_R8); + } else if ((ft & VT_TYPE) == VT_BYTE) + out_op(IL_OP_LDIND_I1); + else if ((ft & VT_TYPE) == (VT_BYTE | VT_UNSIGNED)) + out_op(IL_OP_LDIND_U1); + else if ((ft & VT_TYPE) == VT_SHORT) + out_op(IL_OP_LDIND_I2); + else if ((ft & VT_TYPE) == (VT_SHORT | VT_UNSIGNED)) + out_op(IL_OP_LDIND_U2); + else + out_op(IL_OP_LDIND_I4); + } + } else { + if (v == VT_CONST) { + /* XXX: handle globals */ + if (fc >= -1 && fc <= 8) { + out_op(IL_OP_LDC_I4_M1 + fc + 1); + } else { + out_opi(IL_OP_LDC_I4, fc); + } + } else if (v == VT_LOCAL) { + if (fc >= ARG_BASE) { + fc -= ARG_BASE; + if (fc <= 0xff) { + out_opb(IL_OP_LDARGA_S, fc); + } else { + out_opi(IL_OP_LDARGA, fc); + } + } else { + if (fc <= 0xff) { + out_opb(IL_OP_LDLOCA_S, fc); + } else { + out_opi(IL_OP_LDLOCA, fc); + } + } + } else { + /* XXX: do it */ + } + } +} + +/* store register 'r' in lvalue 'v' */ +void store(int r, SValue *sv) +{ + int v, fc, ft; + + v = sv->r & VT_VALMASK; + fc = sv->c.i; + ft = sv->t; + if (v == VT_LOCAL) { + if (fc >= ARG_BASE) { + fc -= ARG_BASE; + /* XXX: check IL arg store semantics */ + if (fc <= 0xff) { + out_opb(IL_OP_STARG_S, fc); + } else { + out_opi(IL_OP_STARG, fc); + } + } else { + if (fc >= 0 && fc <= 4) { + out_op(IL_OP_STLOC_0 + fc); + } else if (fc <= 0xff) { + out_opb(IL_OP_STLOC_S, fc); + } else { + out_opi(IL_OP_STLOC, fc); + } + } + } else if (v == VT_CONST) { + /* XXX: handle globals */ + out_opi(IL_OP_STSFLD, 0); + } else { + if ((ft & VT_BTYPE) == VT_FLOAT) + out_op(IL_OP_STIND_R4); + else if ((ft & VT_BTYPE) == VT_DOUBLE) + out_op(IL_OP_STIND_R8); + else if ((ft & VT_BTYPE) == VT_LDOUBLE) + out_op(IL_OP_STIND_R8); + else if ((ft & VT_BTYPE) == VT_BYTE) + out_op(IL_OP_STIND_I1); + else if ((ft & VT_BTYPE) == VT_SHORT) + out_op(IL_OP_STIND_I2); + else + out_op(IL_OP_STIND_I4); + } +} + +/* start function call and return function call context */ +void gfunc_start(GFuncContext *c, int func_call) +{ + c->func_call = func_call; +} + +/* push function parameter which is in (vtop->t, vtop->c). Stack entry + is then popped. */ +void gfunc_param(GFuncContext *c) +{ + if ((vtop->t & VT_BTYPE) == VT_STRUCT) { + tcc_error("structures passed as value not handled yet"); + } else { + /* simply push on stack */ + gv(RC_ST0); + } + vtop--; +} + +/* generate function call with address in (vtop->t, vtop->c) and free function + context. Stack entry is popped */ +void gfunc_call(GFuncContext *c) +{ + char buf[1024]; + + if ((vtop->r & (VT_VALMASK | VT_LVAL)) == VT_CONST) { + /* XXX: more info needed from tcc */ + il_type_to_str(buf, sizeof(buf), vtop->t, "xxx"); + fprintf(il_outfile, " call %s\n", buf); + } else { + /* indirect call */ + gv(RC_INT); + il_type_to_str(buf, sizeof(buf), vtop->t, NULL); + fprintf(il_outfile, " calli %s\n", buf); + } + vtop--; +} + +/* generate function prolog of type 't' */ +void gfunc_prolog(int t) +{ + int addr, u, func_call; + Sym *sym; + char buf[1024]; + + init_outfile(); + + /* XXX: pass function name to gfunc_prolog */ + il_type_to_str(buf, sizeof(buf), t, funcname); + fprintf(il_outfile, ".method static %s il managed\n", buf); + fprintf(il_outfile, "{\n"); + /* XXX: cannot do better now */ + fprintf(il_outfile, " .maxstack %d\n", NB_REGS); + fprintf(il_outfile, " .locals (int32, int32, int32, int32, int32, int32, int32, int32)\n"); + + if (!strcmp(funcname, "main")) + fprintf(il_outfile, " .entrypoint\n"); + + sym = sym_find((unsigned)t >> VT_STRUCT_SHIFT); + func_call = sym->r; + + addr = ARG_BASE; + /* if the function returns a structure, then add an + implicit pointer parameter */ + func_vt = sym->t; + func_var = (sym->c == FUNC_ELLIPSIS); + if ((func_vt & VT_BTYPE) == VT_STRUCT) { + func_vc = addr; + addr++; + } + /* define parameters */ + while ((sym = sym->next) != NULL) { + u = sym->t; + sym_push(sym->v & ~SYM_FIELD, u, + VT_LOCAL | lvalue_type(sym->type.t), addr); + addr++; + } +} + +/* generate function epilog */ +void gfunc_epilog(void) +{ + out_op(IL_OP_RET); + fprintf(il_outfile, "}\n\n"); +} + +/* generate a jump to a label */ +int gjmp(int t) +{ + return out_opj(IL_OP_BR, t); +} + +/* generate a jump to a fixed address */ +void gjmp_addr(int a) +{ + /* XXX: handle syms */ + out_opi(IL_OP_BR, a); +} + +/* generate a test. set 'inv' to invert test. Stack entry is popped */ +int gtst(int inv, int t) +{ + int v, *p, c; + + v = vtop->r & VT_VALMASK; + if (v == VT_CMP) { + c = vtop->c.i ^ inv; + switch(c) { + case TOK_EQ: + c = IL_OP_BEQ; + break; + case TOK_NE: + c = IL_OP_BNE_UN; + break; + case TOK_LT: + c = IL_OP_BLT; + break; + case TOK_LE: + c = IL_OP_BLE; + break; + case TOK_GT: + c = IL_OP_BGT; + break; + case TOK_GE: + c = IL_OP_BGE; + break; + case TOK_ULT: + c = IL_OP_BLT_UN; + break; + case TOK_ULE: + c = IL_OP_BLE_UN; + break; + case TOK_UGT: + c = IL_OP_BGT_UN; + break; + case TOK_UGE: + c = IL_OP_BGE_UN; + break; + } + t = out_opj(c, t); + } else if (v == VT_JMP || v == VT_JMPI) { + /* && or || optimization */ + if ((v & 1) == inv) { + /* insert vtop->c jump list in t */ + p = &vtop->c.i; + while (*p != 0) + p = (int *)*p; + *p = t; + t = vtop->c.i; + } else { + t = gjmp(t); + gsym(vtop->c.i); + } + } + vtop--; + return t; +} + +/* generate an integer binary operation */ +void gen_opi(int op) +{ + gv2(RC_ST1, RC_ST0); + switch(op) { + case '+': + out_op(IL_OP_ADD); + goto std_op; + case '-': + out_op(IL_OP_SUB); + goto std_op; + case '&': + out_op(IL_OP_AND); + goto std_op; + case '^': + out_op(IL_OP_XOR); + goto std_op; + case '|': + out_op(IL_OP_OR); + goto std_op; + case '*': + out_op(IL_OP_MUL); + goto std_op; + case TOK_SHL: + out_op(IL_OP_SHL); + goto std_op; + case TOK_SHR: + out_op(IL_OP_SHR_UN); + goto std_op; + case TOK_SAR: + out_op(IL_OP_SHR); + goto std_op; + case '/': + case TOK_PDIV: + out_op(IL_OP_DIV); + goto std_op; + case TOK_UDIV: + out_op(IL_OP_DIV_UN); + goto std_op; + case '%': + out_op(IL_OP_REM); + goto std_op; + case TOK_UMOD: + out_op(IL_OP_REM_UN); + std_op: + vtop--; + vtop[0].r = REG_ST0; + break; + case TOK_EQ: + case TOK_NE: + case TOK_LT: + case TOK_LE: + case TOK_GT: + case TOK_GE: + case TOK_ULT: + case TOK_ULE: + case TOK_UGT: + case TOK_UGE: + vtop--; + vtop[0].r = VT_CMP; + vtop[0].c.i = op; + break; + } +} + +/* generate a floating point operation 'v = t1 op t2' instruction. The + two operands are guaranted to have the same floating point type */ +void gen_opf(int op) +{ + /* same as integer */ + gen_opi(op); +} + +/* convert integers to fp 't' type. Must handle 'int', 'unsigned int' + and 'long long' cases. */ +void gen_cvt_itof(int t) +{ + gv(RC_ST0); + if (t == VT_FLOAT) + out_op(IL_OP_CONV_R4); + else + out_op(IL_OP_CONV_R8); +} + +/* convert fp to int 't' type */ +/* XXX: handle long long case */ +void gen_cvt_ftoi(int t) +{ + gv(RC_ST0); + switch(t) { + case VT_INT | VT_UNSIGNED: + out_op(IL_OP_CONV_U4); + break; + case VT_LLONG: + out_op(IL_OP_CONV_I8); + break; + case VT_LLONG | VT_UNSIGNED: + out_op(IL_OP_CONV_U8); + break; + default: + out_op(IL_OP_CONV_I4); + break; + } +} + +/* convert from one floating point type to another */ +void gen_cvt_ftof(int t) +{ + gv(RC_ST0); + if (t == VT_FLOAT) { + out_op(IL_OP_CONV_R4); + } else { + out_op(IL_OP_CONV_R8); + } +} + +/* end of CIL code generator */ +/*************************************************************/ + diff --git a/external/TCC/il-opcodes.h b/external/TCC/il-opcodes.h new file mode 100644 index 00000000..d53ffb2c --- /dev/null +++ b/external/TCC/il-opcodes.h @@ -0,0 +1,251 @@ +/* + * CIL opcode definition + * + * Copyright (c) 2002 Fabrice Bellard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +OP(NOP, "nop", 0x00) +OP(BREAK, "break", 0x01) +OP(LDARG_0, "ldarg.0", 0x02) +OP(LDARG_1, "ldarg.1", 0x03) +OP(LDARG_2, "ldarg.2", 0x04) +OP(LDARG_3, "ldarg.3", 0x05) +OP(LDLOC_0, "ldloc.0", 0x06) +OP(LDLOC_1, "ldloc.1", 0x07) +OP(LDLOC_2, "ldloc.2", 0x08) +OP(LDLOC_3, "ldloc.3", 0x09) +OP(STLOC_0, "stloc.0", 0x0a) +OP(STLOC_1, "stloc.1", 0x0b) +OP(STLOC_2, "stloc.2", 0x0c) +OP(STLOC_3, "stloc.3", 0x0d) +OP(LDARG_S, "ldarg.s", 0x0e) +OP(LDARGA_S, "ldarga.s", 0x0f) +OP(STARG_S, "starg.s", 0x10) +OP(LDLOC_S, "ldloc.s", 0x11) +OP(LDLOCA_S, "ldloca.s", 0x12) +OP(STLOC_S, "stloc.s", 0x13) +OP(LDNULL, "ldnull", 0x14) +OP(LDC_I4_M1, "ldc.i4.m1", 0x15) +OP(LDC_I4_0, "ldc.i4.0", 0x16) +OP(LDC_I4_1, "ldc.i4.1", 0x17) +OP(LDC_I4_2, "ldc.i4.2", 0x18) +OP(LDC_I4_3, "ldc.i4.3", 0x19) +OP(LDC_I4_4, "ldc.i4.4", 0x1a) +OP(LDC_I4_5, "ldc.i4.5", 0x1b) +OP(LDC_I4_6, "ldc.i4.6", 0x1c) +OP(LDC_I4_7, "ldc.i4.7", 0x1d) +OP(LDC_I4_8, "ldc.i4.8", 0x1e) +OP(LDC_I4_S, "ldc.i4.s", 0x1f) +OP(LDC_I4, "ldc.i4", 0x20) +OP(LDC_I8, "ldc.i8", 0x21) +OP(LDC_R4, "ldc.r4", 0x22) +OP(LDC_R8, "ldc.r8", 0x23) +OP(LDPTR, "ldptr", 0x24) +OP(DUP, "dup", 0x25) +OP(POP, "pop", 0x26) +OP(JMP, "jmp", 0x27) +OP(CALL, "call", 0x28) +OP(CALLI, "calli", 0x29) +OP(RET, "ret", 0x2a) +OP(BR_S, "br.s", 0x2b) +OP(BRFALSE_S, "brfalse.s", 0x2c) +OP(BRTRUE_S, "brtrue.s", 0x2d) +OP(BEQ_S, "beq.s", 0x2e) +OP(BGE_S, "bge.s", 0x2f) +OP(BGT_S, "bgt.s", 0x30) +OP(BLE_S, "ble.s", 0x31) +OP(BLT_S, "blt.s", 0x32) +OP(BNE_UN_S, "bne.un.s", 0x33) +OP(BGE_UN_S, "bge.un.s", 0x34) +OP(BGT_UN_S, "bgt.un.s", 0x35) +OP(BLE_UN_S, "ble.un.s", 0x36) +OP(BLT_UN_S, "blt.un.s", 0x37) +OP(BR, "br", 0x38) +OP(BRFALSE, "brfalse", 0x39) +OP(BRTRUE, "brtrue", 0x3a) +OP(BEQ, "beq", 0x3b) +OP(BGE, "bge", 0x3c) +OP(BGT, "bgt", 0x3d) +OP(BLE, "ble", 0x3e) +OP(BLT, "blt", 0x3f) +OP(BNE_UN, "bne.un", 0x40) +OP(BGE_UN, "bge.un", 0x41) +OP(BGT_UN, "bgt.un", 0x42) +OP(BLE_UN, "ble.un", 0x43) +OP(BLT_UN, "blt.un", 0x44) +OP(SWITCH, "switch", 0x45) +OP(LDIND_I1, "ldind.i1", 0x46) +OP(LDIND_U1, "ldind.u1", 0x47) +OP(LDIND_I2, "ldind.i2", 0x48) +OP(LDIND_U2, "ldind.u2", 0x49) +OP(LDIND_I4, "ldind.i4", 0x4a) +OP(LDIND_U4, "ldind.u4", 0x4b) +OP(LDIND_I8, "ldind.i8", 0x4c) +OP(LDIND_I, "ldind.i", 0x4d) +OP(LDIND_R4, "ldind.r4", 0x4e) +OP(LDIND_R8, "ldind.r8", 0x4f) +OP(LDIND_REF, "ldind.ref", 0x50) +OP(STIND_REF, "stind.ref", 0x51) +OP(STIND_I1, "stind.i1", 0x52) +OP(STIND_I2, "stind.i2", 0x53) +OP(STIND_I4, "stind.i4", 0x54) +OP(STIND_I8, "stind.i8", 0x55) +OP(STIND_R4, "stind.r4", 0x56) +OP(STIND_R8, "stind.r8", 0x57) +OP(ADD, "add", 0x58) +OP(SUB, "sub", 0x59) +OP(MUL, "mul", 0x5a) +OP(DIV, "div", 0x5b) +OP(DIV_UN, "div.un", 0x5c) +OP(REM, "rem", 0x5d) +OP(REM_UN, "rem.un", 0x5e) +OP(AND, "and", 0x5f) +OP(OR, "or", 0x60) +OP(XOR, "xor", 0x61) +OP(SHL, "shl", 0x62) +OP(SHR, "shr", 0x63) +OP(SHR_UN, "shr.un", 0x64) +OP(NEG, "neg", 0x65) +OP(NOT, "not", 0x66) +OP(CONV_I1, "conv.i1", 0x67) +OP(CONV_I2, "conv.i2", 0x68) +OP(CONV_I4, "conv.i4", 0x69) +OP(CONV_I8, "conv.i8", 0x6a) +OP(CONV_R4, "conv.r4", 0x6b) +OP(CONV_R8, "conv.r8", 0x6c) +OP(CONV_U4, "conv.u4", 0x6d) +OP(CONV_U8, "conv.u8", 0x6e) +OP(CALLVIRT, "callvirt", 0x6f) +OP(CPOBJ, "cpobj", 0x70) +OP(LDOBJ, "ldobj", 0x71) +OP(LDSTR, "ldstr", 0x72) +OP(NEWOBJ, "newobj", 0x73) +OP(CASTCLASS, "castclass", 0x74) +OP(ISINST, "isinst", 0x75) +OP(CONV_R_UN, "conv.r.un", 0x76) +OP(ANN_DATA_S, "ann.data.s", 0x77) +OP(UNBOX, "unbox", 0x79) +OP(THROW, "throw", 0x7a) +OP(LDFLD, "ldfld", 0x7b) +OP(LDFLDA, "ldflda", 0x7c) +OP(STFLD, "stfld", 0x7d) +OP(LDSFLD, "ldsfld", 0x7e) +OP(LDSFLDA, "ldsflda", 0x7f) +OP(STSFLD, "stsfld", 0x80) +OP(STOBJ, "stobj", 0x81) +OP(CONV_OVF_I1_UN, "conv.ovf.i1.un", 0x82) +OP(CONV_OVF_I2_UN, "conv.ovf.i2.un", 0x83) +OP(CONV_OVF_I4_UN, "conv.ovf.i4.un", 0x84) +OP(CONV_OVF_I8_UN, "conv.ovf.i8.un", 0x85) +OP(CONV_OVF_U1_UN, "conv.ovf.u1.un", 0x86) +OP(CONV_OVF_U2_UN, "conv.ovf.u2.un", 0x87) +OP(CONV_OVF_U4_UN, "conv.ovf.u4.un", 0x88) +OP(CONV_OVF_U8_UN, "conv.ovf.u8.un", 0x89) +OP(CONV_OVF_I_UN, "conv.ovf.i.un", 0x8a) +OP(CONV_OVF_U_UN, "conv.ovf.u.un", 0x8b) +OP(BOX, "box", 0x8c) +OP(NEWARR, "newarr", 0x8d) +OP(LDLEN, "ldlen", 0x8e) +OP(LDELEMA, "ldelema", 0x8f) +OP(LDELEM_I1, "ldelem.i1", 0x90) +OP(LDELEM_U1, "ldelem.u1", 0x91) +OP(LDELEM_I2, "ldelem.i2", 0x92) +OP(LDELEM_U2, "ldelem.u2", 0x93) +OP(LDELEM_I4, "ldelem.i4", 0x94) +OP(LDELEM_U4, "ldelem.u4", 0x95) +OP(LDELEM_I8, "ldelem.i8", 0x96) +OP(LDELEM_I, "ldelem.i", 0x97) +OP(LDELEM_R4, "ldelem.r4", 0x98) +OP(LDELEM_R8, "ldelem.r8", 0x99) +OP(LDELEM_REF, "ldelem.ref", 0x9a) +OP(STELEM_I, "stelem.i", 0x9b) +OP(STELEM_I1, "stelem.i1", 0x9c) +OP(STELEM_I2, "stelem.i2", 0x9d) +OP(STELEM_I4, "stelem.i4", 0x9e) +OP(STELEM_I8, "stelem.i8", 0x9f) +OP(STELEM_R4, "stelem.r4", 0xa0) +OP(STELEM_R8, "stelem.r8", 0xa1) +OP(STELEM_REF, "stelem.ref", 0xa2) +OP(CONV_OVF_I1, "conv.ovf.i1", 0xb3) +OP(CONV_OVF_U1, "conv.ovf.u1", 0xb4) +OP(CONV_OVF_I2, "conv.ovf.i2", 0xb5) +OP(CONV_OVF_U2, "conv.ovf.u2", 0xb6) +OP(CONV_OVF_I4, "conv.ovf.i4", 0xb7) +OP(CONV_OVF_U4, "conv.ovf.u4", 0xb8) +OP(CONV_OVF_I8, "conv.ovf.i8", 0xb9) +OP(CONV_OVF_U8, "conv.ovf.u8", 0xba) +OP(REFANYVAL, "refanyval", 0xc2) +OP(CKFINITE, "ckfinite", 0xc3) +OP(MKREFANY, "mkrefany", 0xc6) +OP(ANN_CALL, "ann.call", 0xc7) +OP(ANN_CATCH, "ann.catch", 0xc8) +OP(ANN_DEAD, "ann.dead", 0xc9) +OP(ANN_HOISTED, "ann.hoisted", 0xca) +OP(ANN_HOISTED_CALL, "ann.hoisted.call", 0xcb) +OP(ANN_LAB, "ann.lab", 0xcc) +OP(ANN_DEF, "ann.def", 0xcd) +OP(ANN_REF_S, "ann.ref.s", 0xce) +OP(ANN_PHI, "ann.phi", 0xcf) +OP(LDTOKEN, "ldtoken", 0xd0) +OP(CONV_U2, "conv.u2", 0xd1) +OP(CONV_U1, "conv.u1", 0xd2) +OP(CONV_I, "conv.i", 0xd3) +OP(CONV_OVF_I, "conv.ovf.i", 0xd4) +OP(CONV_OVF_U, "conv.ovf.u", 0xd5) +OP(ADD_OVF, "add.ovf", 0xd6) +OP(ADD_OVF_UN, "add.ovf.un", 0xd7) +OP(MUL_OVF, "mul.ovf", 0xd8) +OP(MUL_OVF_UN, "mul.ovf.un", 0xd9) +OP(SUB_OVF, "sub.ovf", 0xda) +OP(SUB_OVF_UN, "sub.ovf.un", 0xdb) +OP(ENDFINALLY, "endfinally", 0xdc) +OP(LEAVE, "leave", 0xdd) +OP(LEAVE_S, "leave.s", 0xde) +OP(STIND_I, "stind.i", 0xdf) +OP(CONV_U, "conv.u", 0xe0) + +/* prefix instructions. we use an opcode >= 256 to ease coding */ + +OP(ARGLIST, "arglist", 0x100) +OP(CEQ, "ceq", 0x101) +OP(CGT, "cgt", 0x102) +OP(CGT_UN, "cgt.un", 0x103) +OP(CLT, "clt", 0x104) +OP(CLT_UN, "clt.un", 0x105) +OP(LDFTN, "ldftn", 0x106) +OP(LDVIRTFTN, "ldvirtftn", 0x107) +OP(JMPI, "jmpi", 0x108) +OP(LDARG, "ldarg", 0x109) +OP(LDARGA, "ldarga", 0x10a) +OP(STARG, "starg", 0x10b) +OP(LDLOC, "ldloc", 0x10c) +OP(LDLOCA, "ldloca", 0x10d) +OP(STLOC, "stloc", 0x10e) +OP(LOCALLOC, "localloc", 0x10f) +OP(ENDFILTER, "endfilter", 0x111) +OP(UNALIGNED, "unaligned", 0x112) +OP(VOLATILE, "volatile", 0x113) +OP(TAIL, "tail", 0x114) +OP(INITOBJ, "initobj", 0x115) +OP(ANN_LIVE, "ann.live", 0x116) +OP(CPBLK, "cpblk", 0x117) +OP(INITBLK, "initblk", 0x118) +OP(ANN_REF, "ann.ref", 0x119) +OP(RETHROW, "rethrow", 0x11a) +OP(SIZEOF, "sizeof", 0x11c) +OP(REFANYTYPE, "refanytype", 0x11d) +OP(ANN_DATA, "ann.data", 0x122) +OP(ANN_ARG, "ann.arg", 0x123) diff --git a/external/TCC/lib/alloca-arm.S b/external/TCC/lib/alloca-arm.S new file mode 100644 index 00000000..9deae630 --- /dev/null +++ b/external/TCC/lib/alloca-arm.S @@ -0,0 +1,11 @@ + .text + .align 2 + .global alloca + .type alloca, %function +alloca: + rsb sp, r0, sp + bic sp, sp, #7 + mov r0, sp + mov pc, lr + .size alloca, .-alloca + .section .note.GNU-stack,"",%progbits diff --git a/external/TCC/lib/alloca86-bt.S b/external/TCC/lib/alloca86-bt.S new file mode 100644 index 00000000..52155053 --- /dev/null +++ b/external/TCC/lib/alloca86-bt.S @@ -0,0 +1,47 @@ +/* ---------------------------------------------- */ +/* alloca86-bt.S */ + +.globl __bound_alloca + +__bound_alloca: + pop %edx + pop %eax + mov %eax, %ecx + add $3,%eax + and $-4,%eax + jz p6 + +#ifdef TCC_TARGET_PE +p4: + cmp $4096,%eax + jbe p5 + test %eax,-4096(%esp) + sub $4096,%esp + sub $4096,%eax + jmp p4 + +p5: +#endif + + sub %eax,%esp + mov %esp,%eax + + push %edx + push %eax + push %ecx + push %eax + call __bound_new_region + add $8, %esp + pop %eax + pop %edx + +p6: + push %edx + push %edx + ret + +/* mark stack as nonexecutable */ +#if defined __ELF__ && defined __linux__ + .section .note.GNU-stack,"",@progbits +#endif +/* ---------------------------------------------- */ diff --git a/external/TCC/lib/alloca86.S b/external/TCC/lib/alloca86.S new file mode 100644 index 00000000..a17e07f2 --- /dev/null +++ b/external/TCC/lib/alloca86.S @@ -0,0 +1,35 @@ +/* ---------------------------------------------- */ +/* alloca86.S */ + +.globl alloca + +alloca: + pop %edx + pop %eax + add $3,%eax + and $-4,%eax + jz p3 + +#ifdef TCC_TARGET_PE +p1: + cmp $4096,%eax + jbe p2 + test %eax,-4096(%esp) + sub $4096,%esp + sub $4096,%eax + jmp p1 +p2: +#endif + + sub %eax,%esp + mov %esp,%eax +p3: + push %edx + push %edx + ret + +/* mark stack as nonexecutable */ +#if defined __ELF__ && defined __linux__ + .section .note.GNU-stack,"",@progbits +#endif +/* ---------------------------------------------- */ diff --git a/external/TCC/lib/alloca86_64-bt.S b/external/TCC/lib/alloca86_64-bt.S new file mode 100644 index 00000000..ab8629da --- /dev/null +++ b/external/TCC/lib/alloca86_64-bt.S @@ -0,0 +1,60 @@ +/* ---------------------------------------------- */ +/* alloca86_64.S */ + +.globl __bound_alloca +__bound_alloca: + +#ifdef TCC_TARGET_PE + # bound checking is not implemented + pop %rdx + mov %rcx,%rax + add $15,%rax + and $-16,%rax + jz p3 + +p1: + cmp $4096,%rax + jbe p2 + test %rax,-4096(%rsp) + sub $4096,%rsp + sub $4096,%rax + jmp p1 +p2: + + sub %rax,%rsp + mov %rsp,%rax + add $32,%rax + +p3: + push %rdx + ret +#else + pop %rdx + mov %rdi,%rax + movl %rax,%rsi # size, a second parm to the __bound_new_region + + add $15,%rax + and $-16,%rax + jz p3 + + + sub %rax,%rsp + mov %rsp,%rdi # pointer, a first parm to the __bound_new_region + mov %rsp,%rax + + push %rdx + push %rax + call __bound_new_region + pop %rax + pop %rdx + +p3: + push %rdx + ret +#endif + +/* mark stack as nonexecutable */ +#if defined __ELF__ && defined __linux__ + .section .note.GNU-stack,"",@progbits +#endif +/* ---------------------------------------------- */ diff --git a/external/TCC/lib/alloca86_64.S b/external/TCC/lib/alloca86_64.S new file mode 100644 index 00000000..4a741047 --- /dev/null +++ b/external/TCC/lib/alloca86_64.S @@ -0,0 +1,42 @@ +/* ---------------------------------------------- */ +/* alloca86_64.S */ + +.globl alloca + +alloca: + pop %rdx +#ifdef TCC_TARGET_PE + mov %rcx,%rax +#else + mov %rdi,%rax +#endif + add $15,%rax + and $-16,%rax + jz p3 + +#ifdef TCC_TARGET_PE +p1: + cmp $4096,%rax + jbe p2 + test %rax,-4096(%rsp) + sub $4096,%rsp + sub $4096,%rax + jmp p1 +p2: +#endif + + sub %rax,%rsp + mov %rsp,%rax +#ifdef TCC_TARGET_PE + add $32,%rax +#endif + +p3: + push %rdx + ret + +/* mark stack as nonexecutable */ +#if defined __ELF__ && defined __linux__ + .section .note.GNU-stack,"",@progbits +#endif +/* ---------------------------------------------- */ diff --git a/external/TCC/lib/armeabi.c b/external/TCC/lib/armeabi.c new file mode 100644 index 00000000..0d1217ba --- /dev/null +++ b/external/TCC/lib/armeabi.c @@ -0,0 +1,489 @@ +/* TCC ARM runtime EABI + Copyright (C) 2013 Thomas Preud'homme + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE.*/ + +#include + +/* We rely on the little endianness and EABI calling convention for this to + work */ + +typedef struct double_unsigned_struct { + unsigned low; + unsigned high; +} double_unsigned_struct; + +typedef struct unsigned_int_struct { + unsigned low; + int high; +} unsigned_int_struct; + +#define REGS_RETURN(name, type) \ + void name ## _return(type ret) {} + + +/* Float helper functions */ + +#define FLOAT_EXP_BITS 8 +#define FLOAT_FRAC_BITS 23 + +#define DOUBLE_EXP_BITS 11 +#define DOUBLE_FRAC_BITS 52 + +#define ONE_EXP(type) ((1 << (type ## _EXP_BITS - 1)) - 1) + +REGS_RETURN(unsigned_int_struct, unsigned_int_struct) +REGS_RETURN(double_unsigned_struct, double_unsigned_struct) + +/* float -> integer: (sign) 1.fraction x 2^(exponent - exp_for_one) */ + + +/* float to [unsigned] long long conversion */ +#define DEFINE__AEABI_F2XLZ(name, with_sign) \ +void __aeabi_ ## name(unsigned val) \ +{ \ + int exp, high_shift, sign; \ + double_unsigned_struct ret; \ + \ + /* compute sign */ \ + sign = val >> 31; \ + \ + /* compute real exponent */ \ + exp = val >> FLOAT_FRAC_BITS; \ + exp &= (1 << FLOAT_EXP_BITS) - 1; \ + exp -= ONE_EXP(FLOAT); \ + \ + /* undefined behavior if truncated value cannot be represented */ \ + if (with_sign) { \ + if (exp > 62) /* |val| too big, double cannot represent LLONG_MAX */ \ + return; \ + } else { \ + if ((sign && exp >= 0) || exp > 63) /* if val < 0 || val too big */ \ + return; \ + } \ + \ + val &= (1 << FLOAT_FRAC_BITS) - 1; \ + if (exp >= 32) { \ + ret.high = 1 << (exp - 32); \ + if (exp - 32 >= FLOAT_FRAC_BITS) { \ + ret.high |= val << (exp - 32 - FLOAT_FRAC_BITS); \ + ret.low = 0; \ + } else { \ + high_shift = FLOAT_FRAC_BITS - (exp - 32); \ + ret.high |= val >> high_shift; \ + ret.low = val << (32 - high_shift); \ + } \ + } else { \ + ret.high = 0; \ + ret.low = 1 << exp; \ + if (exp > FLOAT_FRAC_BITS) \ + ret.low |= val << (exp - FLOAT_FRAC_BITS); \ + else \ + ret.low |= val >> (FLOAT_FRAC_BITS - exp); \ + } \ + \ + /* encode negative integer using 2's complement */ \ + if (with_sign && sign) { \ + ret.low = ~ret.low; \ + ret.high = ~ret.high; \ + if (ret.low == UINT_MAX) { \ + ret.low = 0; \ + ret.high++; \ + } else \ + ret.low++; \ + } \ + \ + double_unsigned_struct_return(ret); \ +} + +/* float to unsigned long long conversion */ +DEFINE__AEABI_F2XLZ(f2ulz, 0) + +/* float to long long conversion */ +DEFINE__AEABI_F2XLZ(f2lz, 1) + +/* double to [unsigned] long long conversion */ +#define DEFINE__AEABI_D2XLZ(name, with_sign) \ +void __aeabi_ ## name(double_unsigned_struct val) \ +{ \ + int exp, high_shift, sign; \ + double_unsigned_struct ret; \ + \ + /* compute sign */ \ + sign = val.high >> 31; \ + \ + /* compute real exponent */ \ + exp = (val.high >> (DOUBLE_FRAC_BITS - 32)); \ + exp &= (1 << DOUBLE_EXP_BITS) - 1; \ + exp -= ONE_EXP(DOUBLE); \ + \ + /* undefined behavior if truncated value cannot be represented */ \ + if (with_sign) { \ + if (exp > 62) /* |val| too big, double cannot represent LLONG_MAX */ \ + return; \ + } else { \ + if ((sign && exp >= 0) || exp > 63) /* if val < 0 || val too big */ \ + return; \ + } \ + \ + val.high &= (1 << (DOUBLE_FRAC_BITS - 32)) - 1; \ + if (exp >= 32) { \ + ret.high = 1 << (exp - 32); \ + if (exp >= DOUBLE_FRAC_BITS) { \ + high_shift = exp - DOUBLE_FRAC_BITS; \ + ret.high |= val.high << high_shift; \ + ret.high |= val.low >> (32 - high_shift); \ + ret.low = val.low << high_shift; \ + } else { \ + high_shift = DOUBLE_FRAC_BITS - exp; \ + ret.high |= val.high >> high_shift; \ + ret.low = val.high << (32 - high_shift); \ + ret.low |= val.low >> high_shift; \ + } \ + } else { \ + ret.high = 0; \ + ret.low = 1 << exp; \ + if (exp > DOUBLE_FRAC_BITS - 32) { \ + high_shift = exp - DOUBLE_FRAC_BITS - 32; \ + ret.low |= val.high << high_shift; \ + ret.low |= val.low >> (32 - high_shift); \ + } else \ + ret.low |= val.high >> (DOUBLE_FRAC_BITS - 32 - exp); \ + } \ + \ + /* encode negative integer using 2's complement */ \ + if (with_sign && sign) { \ + ret.low = ~ret.low; \ + ret.high = ~ret.high; \ + if (ret.low == UINT_MAX) { \ + ret.low = 0; \ + ret.high++; \ + } else \ + ret.low++; \ + } \ + \ + double_unsigned_struct_return(ret); \ +} + +/* double to unsigned long long conversion */ +DEFINE__AEABI_D2XLZ(d2ulz, 0) + +/* double to long long conversion */ +DEFINE__AEABI_D2XLZ(d2lz, 1) + +/* long long to float conversion */ +#define DEFINE__AEABI_XL2F(name, with_sign) \ +unsigned __aeabi_ ## name(unsigned long long v) \ +{ \ + int s /* shift */, flb /* first lost bit */, sign = 0; \ + unsigned p = 0 /* power */, ret; \ + double_unsigned_struct val; \ + \ + /* fraction in negative float is encoded in 1's complement */ \ + if (with_sign && (v & (1ULL << 63))) { \ + sign = 1; \ + v = ~v + 1; \ + } \ + val.low = v; \ + val.high = v >> 32; \ + /* fill fraction bits */ \ + for (s = 31, p = 1 << 31; p && !(val.high & p); s--, p >>= 1); \ + if (p) { \ + ret = val.high & (p - 1); \ + if (s < FLOAT_FRAC_BITS) { \ + ret <<= FLOAT_FRAC_BITS - s; \ + ret |= val.low >> (32 - (FLOAT_FRAC_BITS - s)); \ + flb = (val.low >> (32 - (FLOAT_FRAC_BITS - s - 1))) & 1; \ + } else { \ + flb = (ret >> (s - FLOAT_FRAC_BITS - 1)) & 1; \ + ret >>= s - FLOAT_FRAC_BITS; \ + } \ + s += 32; \ + } else { \ + for (s = 31, p = 1 << 31; p && !(val.low & p); s--, p >>= 1); \ + if (p) { \ + ret = val.low & (p - 1); \ + if (s <= FLOAT_FRAC_BITS) { \ + ret <<= FLOAT_FRAC_BITS - s; \ + flb = 0; \ + } else { \ + flb = (ret >> (s - FLOAT_FRAC_BITS - 1)) & 1; \ + ret >>= s - FLOAT_FRAC_BITS; \ + } \ + } else \ + return 0; \ + } \ + if (flb) \ + ret++; \ + \ + /* fill exponent bits */ \ + ret |= (s + ONE_EXP(FLOAT)) << FLOAT_FRAC_BITS; \ + \ + /* fill sign bit */ \ + ret |= sign << 31; \ + \ + return ret; \ +} + +/* unsigned long long to float conversion */ +DEFINE__AEABI_XL2F(ul2f, 0) + +/* long long to float conversion */ +DEFINE__AEABI_XL2F(l2f, 1) + +/* long long to double conversion */ +#define __AEABI_XL2D(name, with_sign) \ +void __aeabi_ ## name(unsigned long long v) \ +{ \ + int s /* shift */, high_shift, sign = 0; \ + unsigned tmp, p = 0; \ + double_unsigned_struct val, ret; \ + \ + /* fraction in negative float is encoded in 1's complement */ \ + if (with_sign && (v & (1ULL << 63))) { \ + sign = 1; \ + v = ~v + 1; \ + } \ + val.low = v; \ + val.high = v >> 32; \ + \ + /* fill fraction bits */ \ + for (s = 31, p = 1 << 31; p && !(val.high & p); s--, p >>= 1); \ + if (p) { \ + tmp = val.high & (p - 1); \ + if (s < DOUBLE_FRAC_BITS - 32) { \ + high_shift = DOUBLE_FRAC_BITS - 32 - s; \ + ret.high = tmp << high_shift; \ + ret.high |= val.low >> (32 - high_shift); \ + ret.low = val.low << high_shift; \ + } else { \ + high_shift = s - (DOUBLE_FRAC_BITS - 32); \ + ret.high = tmp >> high_shift; \ + ret.low = tmp << (32 - high_shift); \ + ret.low |= val.low >> high_shift; \ + if ((val.low >> (high_shift - 1)) & 1) { \ + if (ret.low == UINT_MAX) { \ + ret.high++; \ + ret.low = 0; \ + } else \ + ret.low++; \ + } \ + } \ + s += 32; \ + } else { \ + for (s = 31, p = 1 << 31; p && !(val.low & p); s--, p >>= 1); \ + if (p) { \ + tmp = val.low & (p - 1); \ + if (s <= DOUBLE_FRAC_BITS - 32) { \ + high_shift = DOUBLE_FRAC_BITS - 32 - s; \ + ret.high = tmp << high_shift; \ + ret.low = 0; \ + } else { \ + high_shift = s - (DOUBLE_FRAC_BITS - 32); \ + ret.high = tmp >> high_shift; \ + ret.low = tmp << (32 - high_shift); \ + } \ + } else { \ + ret.high = ret.low = 0; \ + double_unsigned_struct_return(ret); \ + } \ + } \ + \ + /* fill exponent bits */ \ + ret.high |= (s + ONE_EXP(DOUBLE)) << (DOUBLE_FRAC_BITS - 32); \ + \ + /* fill sign bit */ \ + ret.high |= sign << 31; \ + \ + double_unsigned_struct_return(ret); \ +} + +/* unsigned long long to double conversion */ +__AEABI_XL2D(ul2d, 0) + +/* long long to double conversion */ +__AEABI_XL2D(l2d, 1) + + +/* Long long helper functions */ + +/* TODO: add error in case of den == 0 (see §4.3.1 and §4.3.2) */ + +#define define_aeabi_xdivmod_signed_type(basetype, type) \ +typedef struct type { \ + basetype quot; \ + unsigned basetype rem; \ +} type + +#define define_aeabi_xdivmod_unsigned_type(basetype, type) \ +typedef struct type { \ + basetype quot; \ + basetype rem; \ +} type + +#define AEABI_UXDIVMOD(name,type, rettype, typemacro) \ +static inline rettype aeabi_ ## name (type num, type den) \ +{ \ + rettype ret; \ + type quot = 0; \ + \ + /* Increase quotient while it is less than numerator */ \ + while (num >= den) { \ + type q = 1; \ + \ + /* Find closest power of two */ \ + while ((q << 1) * den <= num && q * den <= typemacro ## _MAX / 2) \ + q <<= 1; \ + \ + /* Compute difference between current quotient and numerator */ \ + num -= q * den; \ + quot += q; \ + } \ + ret.quot = quot; \ + ret.rem = num; \ + return ret; \ +} + +#define __AEABI_XDIVMOD(name, type, uiname, rettype, urettype, typemacro) \ +void __aeabi_ ## name(type numerator, type denominator) \ +{ \ + unsigned type num, den; \ + urettype uxdiv_ret; \ + rettype ret; \ + \ + if (numerator >= 0) \ + num = numerator; \ + else \ + num = 0 - numerator; \ + if (denominator >= 0) \ + den = denominator; \ + else \ + den = 0 - denominator; \ + uxdiv_ret = aeabi_ ## uiname(num, den); \ + /* signs differ */ \ + if ((numerator & typemacro ## _MIN) != (denominator & typemacro ## _MIN)) \ + ret.quot = 0 - uxdiv_ret.quot; \ + else \ + ret.quot = uxdiv_ret.quot; \ + if (numerator < 0) \ + ret.rem = 0 - uxdiv_ret.rem; \ + else \ + ret.rem = uxdiv_ret.rem; \ + \ + rettype ## _return(ret); \ +} + +define_aeabi_xdivmod_signed_type(long long, lldiv_t); +define_aeabi_xdivmod_unsigned_type(unsigned long long, ulldiv_t); +define_aeabi_xdivmod_signed_type(int, idiv_t); +define_aeabi_xdivmod_unsigned_type(unsigned, uidiv_t); + +REGS_RETURN(lldiv_t, lldiv_t) +REGS_RETURN(ulldiv_t, ulldiv_t) +REGS_RETURN(idiv_t, idiv_t) +REGS_RETURN(uidiv_t, uidiv_t) + +AEABI_UXDIVMOD(uldivmod, unsigned long long, ulldiv_t, ULONG) + +__AEABI_XDIVMOD(ldivmod, long long, uldivmod, lldiv_t, ulldiv_t, LLONG) + +void __aeabi_uldivmod(unsigned long long num, unsigned long long den) +{ + ulldiv_t_return(aeabi_uldivmod(num, den)); +} + +void __aeabi_llsl(double_unsigned_struct val, int shift) +{ + double_unsigned_struct ret; + + if (shift >= 32) { + val.high = val.low; + val.low = 0; + shift -= 32; + } + if (shift > 0) { + ret.low = val.low << shift; + ret.high = (val.high << shift) | (val.low >> (32 - shift)); + double_unsigned_struct_return(ret); + return; + } + double_unsigned_struct_return(val); +} + +#define aeabi_lsr(val, shift, fill, type) \ + type ## _struct ret; \ + \ + if (shift >= 32) { \ + val.low = val.high; \ + val.high = fill; \ + shift -= 32; \ + } \ + if (shift > 0) { \ + ret.high = val.high >> shift; \ + ret.low = (val.high << (32 - shift)) | (val.low >> shift); \ + type ## _struct_return(ret); \ + return; \ + } \ + type ## _struct_return(val); + +void __aeabi_llsr(double_unsigned_struct val, int shift) +{ + aeabi_lsr(val, shift, 0, double_unsigned); +} + +void __aeabi_lasr(unsigned_int_struct val, int shift) +{ + aeabi_lsr(val, shift, val.high >> 31, unsigned_int); +} + + +/* Integer division functions */ + +AEABI_UXDIVMOD(uidivmod, unsigned, uidiv_t, UINT) + +int __aeabi_idiv(int numerator, int denominator) +{ + unsigned num, den; + uidiv_t ret; + + if (numerator >= 0) + num = numerator; + else + num = 0 - numerator; + if (denominator >= 0) + den = denominator; + else + den = 0 - denominator; + ret = aeabi_uidivmod(num, den); + if ((numerator & INT_MIN) != (denominator & INT_MIN)) /* signs differ */ + ret.quot *= -1; + return ret.quot; +} + +unsigned __aeabi_uidiv(unsigned num, unsigned den) +{ + return aeabi_uidivmod(num, den).quot; +} + +__AEABI_XDIVMOD(idivmod, int, uidivmod, idiv_t, uidiv_t, INT) + +void __aeabi_uidivmod(unsigned num, unsigned den) +{ + uidiv_t_return(aeabi_uidivmod(num, den)); +} diff --git a/external/TCC/lib/bcheck.c b/external/TCC/lib/bcheck.c new file mode 100644 index 00000000..829e33d6 --- /dev/null +++ b/external/TCC/lib/bcheck.c @@ -0,0 +1,950 @@ +/* + * Tiny C Memory and bounds checker + * + * Copyright (c) 2002 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include +#include +#include +#include +#if !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) \ + && !defined(__DragonFly__) && !defined(__OpenBSD__) && !defined(__NetBSD__) +#include +#endif +#if !defined(_WIN32) +#include +#endif + +/* #define BOUND_DEBUG */ + +#ifdef BOUND_DEBUG + #define dprintf(a...) fprintf(a) +#else + #define dprintf(a...) +#endif + +/* define so that bound array is static (faster, but use memory if + bound checking not used) */ +/* #define BOUND_STATIC */ + +/* use malloc hooks. Currently the code cannot be reliable if no hooks */ +#define CONFIG_TCC_MALLOC_HOOKS +#define HAVE_MEMALIGN + +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) \ + || defined(__DragonFly__) || defined(__dietlibc__) \ + || defined(__UCLIBC__) || defined(__OpenBSD__) || defined(__NetBSD__) \ + || defined(_WIN32) || defined(TCC_UCLIBC) +#warning Bound checking does not support malloc (etc.) in this environment. +#undef CONFIG_TCC_MALLOC_HOOKS +#undef HAVE_MEMALIGN +#endif + +#define BOUND_T1_BITS 13 +#define BOUND_T2_BITS 11 +#define BOUND_T3_BITS (sizeof(size_t)*8 - BOUND_T1_BITS - BOUND_T2_BITS) +#define BOUND_E_BITS (sizeof(size_t)) + +#define BOUND_T1_SIZE (1 << BOUND_T1_BITS) +#define BOUND_T2_SIZE (1 << BOUND_T2_BITS) +#define BOUND_T3_SIZE (1 << BOUND_T3_BITS) + +#define BOUND_T23_BITS (BOUND_T2_BITS + BOUND_T3_BITS) +#define BOUND_T23_SIZE (1 << BOUND_T23_BITS) + + +/* this pointer is generated when bound check is incorrect */ +#define INVALID_POINTER ((void *)(-2)) +/* size of an empty region */ +#define EMPTY_SIZE ((size_t)(-1)) +/* size of an invalid region */ +#define INVALID_SIZE 0 + +typedef struct BoundEntry { + size_t start; + size_t size; + struct BoundEntry *next; + size_t is_invalid; /* true if pointers outside region are invalid */ +} BoundEntry; + +/* external interface */ +void __bound_init(void); +void __bound_new_region(void *p, size_t size); +int __bound_delete_region(void *p); + +#ifdef __attribute__ + /* an __attribute__ macro is defined in the system headers */ + #undef __attribute__ +#endif +#define FASTCALL __attribute__((regparm(3))) + +void *__bound_malloc(size_t size, const void *caller); +void *__bound_memalign(size_t size, size_t align, const void *caller); +void __bound_free(void *ptr, const void *caller); +void *__bound_realloc(void *ptr, size_t size, const void *caller); +static void *libc_malloc(size_t size); +static void libc_free(void *ptr); +static void install_malloc_hooks(void); +static void restore_malloc_hooks(void); + +#ifdef CONFIG_TCC_MALLOC_HOOKS +static void *saved_malloc_hook; +static void *saved_free_hook; +static void *saved_realloc_hook; +static void *saved_memalign_hook; +#endif + +/* TCC definitions */ +extern char __bounds_start; /* start of static bounds table */ +/* error message, just for TCC */ +const char *__bound_error_msg; + +/* runtime error output */ +extern void rt_error(size_t pc, const char *fmt, ...); + +#ifdef BOUND_STATIC +static BoundEntry *__bound_t1[BOUND_T1_SIZE]; /* page table */ +#else +static BoundEntry **__bound_t1; /* page table */ +#endif +static BoundEntry *__bound_empty_t2; /* empty page, for unused pages */ +static BoundEntry *__bound_invalid_t2; /* invalid page, for invalid pointers */ + +static BoundEntry *__bound_find_region(BoundEntry *e1, void *p) +{ + size_t addr, tmp; + BoundEntry *e; + + e = e1; + while (e != NULL) { + addr = (size_t)p; + addr -= e->start; + if (addr <= e->size) { + /* put region at the head */ + tmp = e1->start; + e1->start = e->start; + e->start = tmp; + tmp = e1->size; + e1->size = e->size; + e->size = tmp; + return e1; + } + e = e->next; + } + /* no entry found: return empty entry or invalid entry */ + if (e1->is_invalid) + return __bound_invalid_t2; + else + return __bound_empty_t2; +} + +/* print a bound error message */ +static void bound_error(const char *fmt, ...) +{ + __bound_error_msg = fmt; + fprintf(stderr,"%s %s: %s\n", __FILE__, __FUNCTION__, fmt); + *(int *)0 = 0; /* force a runtime error */ +} + +static void bound_alloc_error(void) +{ + bound_error("not enough memory for bound checking code"); +} + +/* return '(p + offset)' for pointer arithmetic (a pointer can reach + the end of a region in this case */ +void * FASTCALL __bound_ptr_add(void *p, size_t offset) +{ + size_t addr = (size_t)p; + BoundEntry *e; + + __bound_init(); + + dprintf(stderr, "%s %s: %p %p\n", __FILE__, __FUNCTION__, p, offset); + + e = __bound_t1[addr >> (BOUND_T2_BITS + BOUND_T3_BITS)]; + e = (BoundEntry *)((char *)e + + ((addr >> (BOUND_T3_BITS - BOUND_E_BITS)) & + ((BOUND_T2_SIZE - 1) << BOUND_E_BITS))); + addr -= e->start; + if (addr > e->size) { + e = __bound_find_region(e, p); + addr = (size_t)p - e->start; + } + addr += offset; + if (addr >= e->size) { + fprintf(stderr,"%s %s: %p is outside of the region\n", __FILE__, __FUNCTION__, p + offset); + return INVALID_POINTER; /* return an invalid pointer */ + } + return p + offset; +} + +/* return '(p + offset)' for pointer indirection (the resulting must + be strictly inside the region */ +#define BOUND_PTR_INDIR(dsize) \ +void * FASTCALL __bound_ptr_indir ## dsize (void *p, size_t offset) \ +{ \ + size_t addr = (size_t)p; \ + BoundEntry *e; \ + \ + dprintf(stderr, "%s %s: %p %p start\n", __FILE__, __FUNCTION__, p, offset); \ + \ + __bound_init(); \ + e = __bound_t1[addr >> (BOUND_T2_BITS + BOUND_T3_BITS)]; \ + e = (BoundEntry *)((char *)e + \ + ((addr >> (BOUND_T3_BITS - BOUND_E_BITS)) & \ + ((BOUND_T2_SIZE - 1) << BOUND_E_BITS))); \ + addr -= e->start; \ + if (addr > e->size) { \ + e = __bound_find_region(e, p); \ + addr = (size_t)p - e->start; \ + } \ + addr += offset + dsize; \ + if (addr > e->size) { \ + fprintf(stderr,"%s %s: %p is outside of the region\n", __FILE__, __FUNCTION__, p + offset); \ + return INVALID_POINTER; /* return an invalid pointer */ \ + } \ + dprintf(stderr, "%s %s: return p+offset = %p\n", __FILE__, __FUNCTION__, p + offset); \ + return p + offset; \ +} + +BOUND_PTR_INDIR(1) +BOUND_PTR_INDIR(2) +BOUND_PTR_INDIR(4) +BOUND_PTR_INDIR(8) +BOUND_PTR_INDIR(12) +BOUND_PTR_INDIR(16) + +/* return the frame pointer of the caller */ +#define GET_CALLER_FP(fp)\ +{\ + fp = (size_t)__builtin_frame_address(1);\ +} + +/* called when entering a function to add all the local regions */ +void FASTCALL __bound_local_new(void *p1) +{ + size_t addr, size, fp, *p = p1; + + dprintf(stderr, "%s, %s start p1=%p\n", __FILE__, __FUNCTION__, p); + GET_CALLER_FP(fp); + for(;;) { + addr = p[0]; + if (addr == 0) + break; + addr += fp; + size = p[1]; + p += 2; + __bound_new_region((void *)addr, size); + } + dprintf(stderr, "%s, %s end\n", __FILE__, __FUNCTION__); +} + +/* called when leaving a function to delete all the local regions */ +void FASTCALL __bound_local_delete(void *p1) +{ + size_t addr, fp, *p = p1; + GET_CALLER_FP(fp); + for(;;) { + addr = p[0]; + if (addr == 0) + break; + addr += fp; + p += 2; + __bound_delete_region((void *)addr); + } +} + +static BoundEntry *__bound_new_page(void) +{ + BoundEntry *page; + size_t i; + + page = libc_malloc(sizeof(BoundEntry) * BOUND_T2_SIZE); + if (!page) + bound_alloc_error(); + for(i=0;i> BOUND_T3_BITS; + if (end != 0) + t2_end = end >> BOUND_T3_BITS; + else + t2_end = 1 << (BOUND_T1_BITS + BOUND_T2_BITS); + +#if 0 + dprintf(stderr, "mark_invalid: start = %x %x\n", t2_start, t2_end); +#endif + + /* first we handle full pages */ + t1_start = (t2_start + BOUND_T2_SIZE - 1) >> BOUND_T2_BITS; + t1_end = t2_end >> BOUND_T2_BITS; + + i = t2_start & (BOUND_T2_SIZE - 1); + j = t2_end & (BOUND_T2_SIZE - 1); + + if (t1_start == t1_end) { + page = get_page(t2_start >> BOUND_T2_BITS); + for(; i < j; i++) { + page[i].size = INVALID_SIZE; + page[i].is_invalid = 1; + } + } else { + if (i > 0) { + page = get_page(t2_start >> BOUND_T2_BITS); + for(; i < BOUND_T2_SIZE; i++) { + page[i].size = INVALID_SIZE; + page[i].is_invalid = 1; + } + } + for(i = t1_start; i < t1_end; i++) { + __bound_t1[i] = __bound_invalid_t2; + } + if (j != 0) { + page = get_page(t1_end); + for(i = 0; i < j; i++) { + page[i].size = INVALID_SIZE; + page[i].is_invalid = 1; + } + } + } +} + +void __bound_init(void) +{ + size_t i; + BoundEntry *page; + size_t start, size; + size_t *p; + + static int inited; + if (inited) + return; + + inited = 1; + + dprintf(stderr, "%s, %s() start\n", __FILE__, __FUNCTION__); + + /* save malloc hooks and install bound check hooks */ + install_malloc_hooks(); + +#ifndef BOUND_STATIC + __bound_t1 = libc_malloc(BOUND_T1_SIZE * sizeof(BoundEntry *)); + if (!__bound_t1) + bound_alloc_error(); +#endif + __bound_empty_t2 = __bound_new_page(); + for(i=0;i= v3.3, the alternative is to read + * start_brk from /proc/self/stat + */ + start = (size_t)sbrk(0); + size = 128 * 0x100000; + mark_invalid(start, size); +#endif + + /* add all static bound check values */ + p = (size_t *)&__bounds_start; + while (p[0] != 0) { + __bound_new_region((void *)p[0], p[1]); + p += 2; + } + + dprintf(stderr, "%s, %s() end\n\n", __FILE__, __FUNCTION__); +} + +void __bound_main_arg(void **p) +{ + void *start = p; + while (*p++); + + dprintf(stderr, "%s, %s calling __bound_new_region(%p, %p)\n", + __FILE__, __FUNCTION__, (void *) p - start); + + __bound_new_region(start, (void *) p - start); +} + +void __bound_exit(void) +{ + restore_malloc_hooks(); +} + +static inline void add_region(BoundEntry *e, + size_t start, size_t size) +{ + BoundEntry *e1; + if (e->start == 0) { + /* no region : add it */ + e->start = start; + e->size = size; + } else { + /* already regions in the list: add it at the head */ + e1 = bound_new_entry(); + e1->start = e->start; + e1->size = e->size; + e1->next = e->next; + e->start = start; + e->size = size; + e->next = e1; + } +} + +/* create a new region. It should not already exist in the region list */ +void __bound_new_region(void *p, size_t size) +{ + size_t start, end; + BoundEntry *page, *e, *e2; + size_t t1_start, t1_end, i, t2_start, t2_end; + + __bound_init(); + + dprintf(stderr, "%s, %s(%p, %p) start\n", + __FILE__, __FUNCTION__, p, size); + + start = (size_t)p; + end = start + size; + t1_start = start >> (BOUND_T2_BITS + BOUND_T3_BITS); + t1_end = end >> (BOUND_T2_BITS + BOUND_T3_BITS); + + /* start */ + page = get_page(t1_start); + t2_start = (start >> (BOUND_T3_BITS - BOUND_E_BITS)) & + ((BOUND_T2_SIZE - 1) << BOUND_E_BITS); + t2_end = (end >> (BOUND_T3_BITS - BOUND_E_BITS)) & + ((BOUND_T2_SIZE - 1) << BOUND_E_BITS); + + + e = (BoundEntry *)((char *)page + t2_start); + add_region(e, start, size); + + if (t1_end == t1_start) { + /* same ending page */ + e2 = (BoundEntry *)((char *)page + t2_end); + if (e2 > e) { + e++; + for(;estart = start; + e->size = size; + } + add_region(e, start, size); + } + } else { + /* mark until end of page */ + e2 = page + BOUND_T2_SIZE; + e++; + for(;estart = start; + e->size = size; + } + /* mark intermediate pages, if any */ + for(i=t1_start+1;istart = start; + e->size = size; + } + } + /* last page */ + page = get_page(t1_end); + e2 = (BoundEntry *)((char *)page + t2_end); + for(e=page;estart = start; + e->size = size; + } + add_region(e, start, size); + } + + dprintf(stderr, "%s, %s end\n", __FILE__, __FUNCTION__); +} + +/* delete a region */ +static inline void delete_region(BoundEntry *e, + void *p, size_t empty_size) +{ + size_t addr; + BoundEntry *e1; + + addr = (size_t)p; + addr -= e->start; + if (addr <= e->size) { + /* region found is first one */ + e1 = e->next; + if (e1 == NULL) { + /* no more region: mark it empty */ + e->start = 0; + e->size = empty_size; + } else { + /* copy next region in head */ + e->start = e1->start; + e->size = e1->size; + e->next = e1->next; + bound_free_entry(e1); + } + } else { + /* find the matching region */ + for(;;) { + e1 = e; + e = e->next; + /* region not found: do nothing */ + if (e == NULL) + break; + addr = (size_t)p - e->start; + if (addr <= e->size) { + /* found: remove entry */ + e1->next = e->next; + bound_free_entry(e); + break; + } + } + } +} + +/* WARNING: 'p' must be the starting point of the region. */ +/* return non zero if error */ +int __bound_delete_region(void *p) +{ + size_t start, end, addr, size, empty_size; + BoundEntry *page, *e, *e2; + size_t t1_start, t1_end, t2_start, t2_end, i; + + __bound_init(); + + dprintf(stderr, "%s %s() start\n", __FILE__, __FUNCTION__); + + start = (size_t)p; + t1_start = start >> (BOUND_T2_BITS + BOUND_T3_BITS); + t2_start = (start >> (BOUND_T3_BITS - BOUND_E_BITS)) & + ((BOUND_T2_SIZE - 1) << BOUND_E_BITS); + + /* find region size */ + page = __bound_t1[t1_start]; + e = (BoundEntry *)((char *)page + t2_start); + addr = start - e->start; + if (addr > e->size) + e = __bound_find_region(e, p); + /* test if invalid region */ + if (e->size == EMPTY_SIZE || (size_t)p != e->start) + return -1; + /* compute the size we put in invalid regions */ + if (e->is_invalid) + empty_size = INVALID_SIZE; + else + empty_size = EMPTY_SIZE; + size = e->size; + end = start + size; + + /* now we can free each entry */ + t1_end = end >> (BOUND_T2_BITS + BOUND_T3_BITS); + t2_end = (end >> (BOUND_T3_BITS - BOUND_E_BITS)) & + ((BOUND_T2_SIZE - 1) << BOUND_E_BITS); + + delete_region(e, p, empty_size); + if (t1_end == t1_start) { + /* same ending page */ + e2 = (BoundEntry *)((char *)page + t2_end); + if (e2 > e) { + e++; + for(;estart = 0; + e->size = empty_size; + } + delete_region(e, p, empty_size); + } + } else { + /* mark until end of page */ + e2 = page + BOUND_T2_SIZE; + e++; + for(;estart = 0; + e->size = empty_size; + } + /* mark intermediate pages, if any */ + /* XXX: should free them */ + for(i=t1_start+1;istart = 0; + e->size = empty_size; + } + } + /* last page */ + page = get_page(t1_end); + e2 = (BoundEntry *)((char *)page + t2_end); + for(e=page;estart = 0; + e->size = empty_size; + } + delete_region(e, p, empty_size); + } + + dprintf(stderr, "%s %s() end\n", __FILE__, __FUNCTION__); + + return 0; +} + +/* return the size of the region starting at p, or EMPTY_SIZE if non + existent region. */ +static size_t get_region_size(void *p) +{ + size_t addr = (size_t)p; + BoundEntry *e; + + e = __bound_t1[addr >> (BOUND_T2_BITS + BOUND_T3_BITS)]; + e = (BoundEntry *)((char *)e + + ((addr >> (BOUND_T3_BITS - BOUND_E_BITS)) & + ((BOUND_T2_SIZE - 1) << BOUND_E_BITS))); + addr -= e->start; + if (addr > e->size) + e = __bound_find_region(e, p); + if (e->start != (size_t)p) + return EMPTY_SIZE; + return e->size; +} + +/* patched memory functions */ + +/* force compiler to perform stores coded up to this point */ +#define barrier() __asm__ __volatile__ ("": : : "memory") + +static void install_malloc_hooks(void) +{ +#ifdef CONFIG_TCC_MALLOC_HOOKS + saved_malloc_hook = __malloc_hook; + saved_free_hook = __free_hook; + saved_realloc_hook = __realloc_hook; + saved_memalign_hook = __memalign_hook; + __malloc_hook = __bound_malloc; + __free_hook = __bound_free; + __realloc_hook = __bound_realloc; + __memalign_hook = __bound_memalign; + + barrier(); +#endif +} + +static void restore_malloc_hooks(void) +{ +#ifdef CONFIG_TCC_MALLOC_HOOKS + __malloc_hook = saved_malloc_hook; + __free_hook = saved_free_hook; + __realloc_hook = saved_realloc_hook; + __memalign_hook = saved_memalign_hook; + + barrier(); +#endif +} + +static void *libc_malloc(size_t size) +{ + void *ptr; + restore_malloc_hooks(); + ptr = malloc(size); + install_malloc_hooks(); + return ptr; +} + +static void libc_free(void *ptr) +{ + restore_malloc_hooks(); + free(ptr); + install_malloc_hooks(); +} + +/* XXX: we should use a malloc which ensure that it is unlikely that + two malloc'ed data have the same address if 'free' are made in + between. */ +void *__bound_malloc(size_t size, const void *caller) +{ + void *ptr; + + /* we allocate one more byte to ensure the regions will be + separated by at least one byte. With the glibc malloc, it may + be in fact not necessary */ + ptr = libc_malloc(size + 1); + + if (!ptr) + return NULL; + + dprintf(stderr, "%s, %s calling __bound_new_region(%p, %p)\n", + __FILE__, __FUNCTION__, ptr, size); + + __bound_new_region(ptr, size); + return ptr; +} + +void *__bound_memalign(size_t size, size_t align, const void *caller) +{ + void *ptr; + + restore_malloc_hooks(); + +#ifndef HAVE_MEMALIGN + if (align > 4) { + /* XXX: handle it ? */ + ptr = NULL; + } else { + /* we suppose that malloc aligns to at least four bytes */ + ptr = malloc(size + 1); + } +#else + /* we allocate one more byte to ensure the regions will be + separated by at least one byte. With the glibc malloc, it may + be in fact not necessary */ + ptr = memalign(size + 1, align); +#endif + + install_malloc_hooks(); + + if (!ptr) + return NULL; + + dprintf(stderr, "%s, %s calling __bound_new_region(%p, %p)\n", + __FILE__, __FUNCTION__, ptr, size); + + __bound_new_region(ptr, size); + return ptr; +} + +void __bound_free(void *ptr, const void *caller) +{ + if (ptr == NULL) + return; + if (__bound_delete_region(ptr) != 0) + bound_error("freeing invalid region"); + + libc_free(ptr); +} + +void *__bound_realloc(void *ptr, size_t size, const void *caller) +{ + void *ptr1; + size_t old_size; + + if (size == 0) { + __bound_free(ptr, caller); + return NULL; + } else { + ptr1 = __bound_malloc(size, caller); + if (ptr == NULL || ptr1 == NULL) + return ptr1; + old_size = get_region_size(ptr); + if (old_size == EMPTY_SIZE) + bound_error("realloc'ing invalid pointer"); + memcpy(ptr1, ptr, old_size); + __bound_free(ptr, caller); + return ptr1; + } +} + +#ifndef CONFIG_TCC_MALLOC_HOOKS +void *__bound_calloc(size_t nmemb, size_t size) +{ + void *ptr; + size = size * nmemb; + ptr = __bound_malloc(size, NULL); + if (!ptr) + return NULL; + memset(ptr, 0, size); + return ptr; +} +#endif + +#if 0 +static void bound_dump(void) +{ + BoundEntry *page, *e; + size_t i, j; + + fprintf(stderr, "region dump:\n"); + for(i=0;isize != EMPTY_SIZE && e->start != 0) { + fprintf(stderr, "%08x:", + (i << (BOUND_T2_BITS + BOUND_T3_BITS)) + + (j << BOUND_T3_BITS)); + do { + fprintf(stderr, " %08lx:%08lx", e->start, e->start + e->size); + e = e->next; + } while (e != NULL); + fprintf(stderr, "\n"); + } + } + } +} +#endif + +/* some useful checked functions */ + +/* check that (p ... p + size - 1) lies inside 'p' region, if any */ +static void __bound_check(const void *p, size_t size) +{ + if (size == 0) + return; + p = __bound_ptr_add((void *)p, size - 1); + if (p == INVALID_POINTER) + bound_error("invalid pointer"); +} + +void *__bound_memcpy(void *dst, const void *src, size_t size) +{ + void* p; + + dprintf(stderr, "%s %s: start, dst=%p src=%p size=%p\n", __FILE__, __FUNCTION__, dst, src, size); + + __bound_check(dst, size); + __bound_check(src, size); + /* check also region overlap */ + if (src >= dst && src < dst + size) + bound_error("overlapping regions in memcpy()"); + + p = memcpy(dst, src, size); + + dprintf(stderr, "%s %s: end, p=%p\n", __FILE__, __FUNCTION__, p); + return p; +} + +void *__bound_memmove(void *dst, const void *src, size_t size) +{ + __bound_check(dst, size); + __bound_check(src, size); + return memmove(dst, src, size); +} + +void *__bound_memset(void *dst, int c, size_t size) +{ + __bound_check(dst, size); + return memset(dst, c, size); +} + +/* XXX: could be optimized */ +int __bound_strlen(const char *s) +{ + const char *p; + size_t len; + + len = 0; + for(;;) { + p = __bound_ptr_indir1((char *)s, len); + if (p == INVALID_POINTER) + bound_error("bad pointer in strlen()"); + if (*p == '\0') + break; + len++; + } + return len; +} + +char *__bound_strcpy(char *dst, const char *src) +{ + size_t len; + void *p; + + dprintf(stderr, "%s %s: strcpy start, dst=%p src=%p\n", __FILE__, __FUNCTION__, dst, src); + len = __bound_strlen(src); + p = __bound_memcpy(dst, src, len + 1); + dprintf(stderr, "%s %s: strcpy end, p=%p\n", __FILE__, __FUNCTION__, dst, src, p); + return p; +} diff --git a/external/TCC/lib/lib-arm64.c b/external/TCC/lib/lib-arm64.c new file mode 100644 index 00000000..42d5936d --- /dev/null +++ b/external/TCC/lib/lib-arm64.c @@ -0,0 +1,652 @@ +/* + * TCC runtime library for arm64. + * + * Copyright (c) 2015 Edmund Grimley Evans + * + * Copying and distribution of this file, with or without modification, + * are permitted in any medium without royalty provided the copyright + * notice and this notice are preserved. This file is offered as-is, + * without any warranty. + */ + +#include +#include + +void __clear_cache(void *beg, void *end) +{ + __arm64_clear_cache(beg, end); +} + +typedef struct { + uint64_t x0, x1; +} u128_t; + +static long double f3_zero(int sgn) +{ + long double f; + u128_t x = { 0, (uint64_t)sgn << 63 }; + memcpy(&f, &x, 16); + return f; +} + +static long double f3_infinity(int sgn) +{ + long double f; + u128_t x = { 0, (uint64_t)sgn << 63 | 0x7fff000000000000 }; + memcpy(&f, &x, 16); + return f; +} + +static long double f3_NaN(void) +{ + long double f; +#if 0 + // ARM's default NaN usually has just the top fraction bit set: + u128_t x = { 0, 0x7fff800000000000 }; +#else + // GCC's library sets all fraction bits: + u128_t x = { -1, 0x7fffffffffffffff }; +#endif + memcpy(&f, &x, 16); + return f; +} + +static int fp3_convert_NaN(long double *f, int sgn, u128_t mnt) +{ + u128_t x = { mnt.x0, + mnt.x1 | 0x7fff800000000000 | (uint64_t)sgn << 63 }; + memcpy(f, &x, 16); + return 1; +} + +static int fp3_detect_NaNs(long double *f, + int a_sgn, int a_exp, u128_t a, + int b_sgn, int b_exp, u128_t b) +{ + // Detect signalling NaNs: + if (a_exp == 32767 && (a.x0 | a.x1 << 16) && !(a.x1 >> 47 & 1)) + return fp3_convert_NaN(f, a_sgn, a); + if (b_exp == 32767 && (b.x0 | b.x1 << 16) && !(b.x1 >> 47 & 1)) + return fp3_convert_NaN(f, b_sgn, b); + + // Detect quiet NaNs: + if (a_exp == 32767 && (a.x0 | a.x1 << 16)) + return fp3_convert_NaN(f, a_sgn, a); + if (b_exp == 32767 && (b.x0 | b.x1 << 16)) + return fp3_convert_NaN(f, b_sgn, b); + + return 0; +} + +static void f3_unpack(int *sgn, int32_t *exp, u128_t *mnt, long double f) +{ + u128_t x; + memcpy(&x, &f, 16); + *sgn = x.x1 >> 63; + *exp = x.x1 >> 48 & 32767; + x.x1 = x.x1 << 16 >> 16; + if (*exp) + x.x1 |= (uint64_t)1 << 48; + else + *exp = 1; + *mnt = x; +} + +static u128_t f3_normalise(int32_t *exp, u128_t mnt) +{ + int sh; + if (!(mnt.x0 | mnt.x1)) + return mnt; + if (!mnt.x1) { + mnt.x1 = mnt.x0; + mnt.x0 = 0; + *exp -= 64; + } + for (sh = 32; sh; sh >>= 1) { + if (!(mnt.x1 >> (64 - sh))) { + mnt.x1 = mnt.x1 << sh | mnt.x0 >> (64 - sh); + mnt.x0 = mnt.x0 << sh; + *exp -= sh; + } + } + return mnt; +} + +static u128_t f3_sticky_shift(int32_t sh, u128_t x) +{ + if (sh >= 128) { + x.x0 = !!(x.x0 | x.x1); + x.x1 = 0; + return x; + } + if (sh >= 64) { + x.x0 = x.x1 | !!x.x0; + x.x1 = 0; + sh -= 64; + } + if (sh > 0) { + x.x0 = x.x0 >> sh | x.x1 << (64 - sh) | !!(x.x0 << (64 - sh)); + x.x1 = x.x1 >> sh; + } + return x; +} + +static long double f3_round(int sgn, int32_t exp, u128_t x) +{ + long double f; + int error; + + if (exp > 0) { + x = f3_sticky_shift(13, x); + } + else { + x = f3_sticky_shift(14 - exp, x); + exp = 0; + } + + error = x.x0 & 3; + x.x0 = x.x0 >> 2 | x.x1 << 62; + x.x1 = x.x1 >> 2; + + if (error == 3 || ((error == 2) & (x.x0 & 1))) { + if (!++x.x0) { + ++x.x1; + if (x.x1 == (uint64_t)1 << 48) + exp = 1; + else if (x.x1 == (uint64_t)1 << 49) { + ++exp; + x.x0 = x.x0 >> 1 | x.x1 << 63; + x.x1 = x.x1 >> 1; + } + } + } + + if (exp >= 32767) + return f3_infinity(sgn); + + x.x1 = x.x1 << 16 >> 16 | (uint64_t)exp << 48 | (uint64_t)sgn << 63; + memcpy(&f, &x, 16); + return f; +} + +static long double f3_add(long double fa, long double fb, int neg) +{ + u128_t a, b, x; + int32_t a_exp, b_exp, x_exp; + int a_sgn, b_sgn, x_sgn; + long double fx; + + f3_unpack(&a_sgn, &a_exp, &a, fa); + f3_unpack(&b_sgn, &b_exp, &b, fb); + + if (fp3_detect_NaNs(&fx, a_sgn, a_exp, a, b_sgn, b_exp, b)) + return fx; + + b_sgn ^= neg; + + // Handle infinities and zeroes: + if (a_exp == 32767 && b_exp == 32767 && a_sgn != b_sgn) + return f3_NaN(); + if (a_exp == 32767) + return f3_infinity(a_sgn); + if (b_exp == 32767) + return f3_infinity(b_sgn); + if (!(a.x0 | a.x1 | b.x0 | b.x1)) + return f3_zero(a_sgn & b_sgn); + + a.x1 = a.x1 << 3 | a.x0 >> 61; + a.x0 = a.x0 << 3; + b.x1 = b.x1 << 3 | b.x0 >> 61; + b.x0 = b.x0 << 3; + + if (a_exp <= b_exp) { + a = f3_sticky_shift(b_exp - a_exp, a); + a_exp = b_exp; + } + else { + b = f3_sticky_shift(a_exp - b_exp, b); + b_exp = a_exp; + } + + x_sgn = a_sgn; + x_exp = a_exp; + if (a_sgn == b_sgn) { + x.x0 = a.x0 + b.x0; + x.x1 = a.x1 + b.x1 + (x.x0 < a.x0); + } + else { + x.x0 = a.x0 - b.x0; + x.x1 = a.x1 - b.x1 - (x.x0 > a.x0); + if (x.x1 >> 63) { + x_sgn ^= 1; + x.x0 = -x.x0; + x.x1 = -x.x1 - !!x.x0; + } + } + + if (!(x.x0 | x.x1)) + return f3_zero(0); + + x = f3_normalise(&x_exp, x); + + return f3_round(x_sgn, x_exp + 12, x); +} + +long double __addtf3(long double a, long double b) +{ + return f3_add(a, b, 0); +} + +long double __subtf3(long double a, long double b) +{ + return f3_add(a, b, 1); +} + +long double __multf3(long double fa, long double fb) +{ + u128_t a, b, x; + int32_t a_exp, b_exp, x_exp; + int a_sgn, b_sgn, x_sgn; + long double fx; + + f3_unpack(&a_sgn, &a_exp, &a, fa); + f3_unpack(&b_sgn, &b_exp, &b, fb); + + if (fp3_detect_NaNs(&fx, a_sgn, a_exp, a, b_sgn, b_exp, b)) + return fx; + + // Handle infinities and zeroes: + if ((a_exp == 32767 && !(b.x0 | b.x1)) || + (b_exp == 32767 && !(a.x0 | a.x1))) + return f3_NaN(); + if (a_exp == 32767 || b_exp == 32767) + return f3_infinity(a_sgn ^ b_sgn); + if (!(a.x0 | a.x1) || !(b.x0 | b.x1)) + return f3_zero(a_sgn ^ b_sgn); + + a = f3_normalise(&a_exp, a); + b = f3_normalise(&b_exp, b); + + x_sgn = a_sgn ^ b_sgn; + x_exp = a_exp + b_exp - 16352; + + { + // Convert to base (1 << 30), discarding bottom 6 bits, which are zero, + // so there are (32, 30, 30, 30) bits in (a3, a2, a1, a0): + uint64_t a0 = a.x0 << 28 >> 34; + uint64_t b0 = b.x0 << 28 >> 34; + uint64_t a1 = a.x0 >> 36 | a.x1 << 62 >> 34; + uint64_t b1 = b.x0 >> 36 | b.x1 << 62 >> 34; + uint64_t a2 = a.x1 << 32 >> 34; + uint64_t b2 = b.x1 << 32 >> 34; + uint64_t a3 = a.x1 >> 32; + uint64_t b3 = b.x1 >> 32; + // Use 16 small multiplications and additions that do not overflow: + uint64_t x0 = a0 * b0; + uint64_t x1 = (x0 >> 30) + a0 * b1 + a1 * b0; + uint64_t x2 = (x1 >> 30) + a0 * b2 + a1 * b1 + a2 * b0; + uint64_t x3 = (x2 >> 30) + a0 * b3 + a1 * b2 + a2 * b1 + a3 * b0; + uint64_t x4 = (x3 >> 30) + a1 * b3 + a2 * b2 + a3 * b1; + uint64_t x5 = (x4 >> 30) + a2 * b3 + a3 * b2; + uint64_t x6 = (x5 >> 30) + a3 * b3; + // We now have (64, 30, 30, ...) bits in (x6, x5, x4, ...). + // Take the top 128 bits, setting bottom bit if any lower bits were set: + uint64_t y0 = (x5 << 34 | x4 << 34 >> 30 | x3 << 34 >> 60 | + !!(x3 << 38 | (x2 | x1 | x0) << 34)); + uint64_t y1 = x6; + // Top bit may be zero. Renormalise: + if (!(y1 >> 63)) { + y1 = y1 << 1 | y0 >> 63; + y0 = y0 << 1; + --x_exp; + } + x.x0 = y0; + x.x1 = y1; + } + + return f3_round(x_sgn, x_exp, x); +} + +long double __divtf3(long double fa, long double fb) +{ + u128_t a, b, x; + int32_t a_exp, b_exp, x_exp; + int a_sgn, b_sgn, x_sgn, i; + long double fx; + + f3_unpack(&a_sgn, &a_exp, &a, fa); + f3_unpack(&b_sgn, &b_exp, &b, fb); + + if (fp3_detect_NaNs(&fx, a_sgn, a_exp, a, b_sgn, b_exp, b)) + return fx; + + // Handle infinities and zeroes: + if ((a_exp == 32767 && b_exp == 32767) || + (!(a.x0 | a.x1) && !(b.x0 | b.x1))) + return f3_NaN(); + if (a_exp == 32767 || !(b.x0 | b.x1)) + return f3_infinity(a_sgn ^ b_sgn); + if (!(a.x0 | a.x1) || b_exp == 32767) + return f3_zero(a_sgn ^ b_sgn); + + a = f3_normalise(&a_exp, a); + b = f3_normalise(&b_exp, b); + + x_sgn = a_sgn ^ b_sgn; + x_exp = a_exp - b_exp + 16395; + + a.x0 = a.x0 >> 1 | a.x1 << 63; + a.x1 = a.x1 >> 1; + b.x0 = b.x0 >> 1 | b.x1 << 63; + b.x1 = b.x1 >> 1; + x.x0 = 0; + x.x1 = 0; + for (i = 0; i < 116; i++) { + x.x1 = x.x1 << 1 | x.x0 >> 63; + x.x0 = x.x0 << 1; + if (a.x1 > b.x1 || (a.x1 == b.x1 && a.x0 >= b.x0)) { + a.x1 = a.x1 - b.x1 - (a.x0 < b.x0); + a.x0 = a.x0 - b.x0; + x.x0 |= 1; + } + a.x1 = a.x1 << 1 | a.x0 >> 63; + a.x0 = a.x0 << 1; + } + x.x0 |= !!(a.x0 | a.x1); + + x = f3_normalise(&x_exp, x); + + return f3_round(x_sgn, x_exp, x); +} + +long double __extendsftf2(float f) +{ + long double fx; + u128_t x; + uint32_t a; + uint64_t aa; + memcpy(&a, &f, 4); + aa = a; + x.x0 = 0; + if (!(a << 1)) + x.x1 = aa << 32; + else if (a << 1 >> 24 == 255) + x.x1 = (0x7fff000000000000 | aa >> 31 << 63 | aa << 41 >> 16 | + (uint64_t)!!(a << 9) << 47); + else + x.x1 = (aa >> 31 << 63 | ((aa >> 23 & 255) + 16256) << 48 | + aa << 41 >> 16); + memcpy(&fx, &x, 16); + return fx; +} + +long double __extenddftf2(double f) +{ + long double fx; + u128_t x; + uint64_t a; + memcpy(&a, &f, 8); + x.x0 = a << 60; + if (!(a << 1)) + x.x1 = a; + else if (a << 1 >> 53 == 2047) + x.x1 = (0x7fff000000000000 | a >> 63 << 63 | a << 12 >> 16 | + (uint64_t)!!(a << 12) << 47); + else + x.x1 = a >> 63 << 63 | ((a >> 52 & 2047) + 15360) << 48 | a << 12 >> 16; + memcpy(&fx, &x, 16); + return fx; +} + +float __trunctfsf2(long double f) +{ + u128_t mnt; + int32_t exp; + int sgn; + uint32_t x; + float fx; + + f3_unpack(&sgn, &exp, &mnt, f); + + if (exp == 32767 && (mnt.x0 | mnt.x1 << 16)) + x = 0x7fc00000 | (uint32_t)sgn << 31 | (mnt.x1 >> 25 & 0x007fffff); + else if (exp > 16510) + x = 0x7f800000 | (uint32_t)sgn << 31; + else if (exp < 16233) + x = (uint32_t)sgn << 31; + else { + exp -= 16257; + x = mnt.x1 >> 23 | !!(mnt.x0 | mnt.x1 << 41); + if (exp < 0) { + x = x >> -exp | !!(x << (32 + exp)); + exp = 0; + } + if ((x & 3) == 3 || (x & 7) == 6) + x += 4; + x = ((x >> 2) + (exp << 23)) | (uint32_t)sgn << 31; + } + memcpy(&fx, &x, 4); + return fx; +} + +double __trunctfdf2(long double f) +{ + u128_t mnt; + int32_t exp; + int sgn; + uint64_t x; + double fx; + + f3_unpack(&sgn, &exp, &mnt, f); + + if (exp == 32767 && (mnt.x0 | mnt.x1 << 16)) + x = (0x7ff8000000000000 | (uint64_t)sgn << 63 | + mnt.x1 << 16 >> 12 | mnt.x0 >> 60); + else if (exp > 17406) + x = 0x7ff0000000000000 | (uint64_t)sgn << 63; + else if (exp < 15308) + x = (uint64_t)sgn << 63; + else { + exp -= 15361; + x = mnt.x1 << 6 | mnt.x0 >> 58 | !!(mnt.x0 << 6); + if (exp < 0) { + x = x >> -exp | !!(x << (64 + exp)); + exp = 0; + } + if ((x & 3) == 3 || (x & 7) == 6) + x += 4; + x = ((x >> 2) + ((uint64_t)exp << 52)) | (uint64_t)sgn << 63; + } + memcpy(&fx, &x, 8); + return fx; +} + +int32_t __fixtfsi(long double fa) +{ + u128_t a; + int32_t a_exp; + int a_sgn; + int32_t x; + f3_unpack(&a_sgn, &a_exp, &a, fa); + if (a_exp < 16369) + return 0; + if (a_exp > 16413) + return a_sgn ? -0x80000000 : 0x7fffffff; + x = a.x1 >> (16431 - a_exp); + return a_sgn ? -x : x; +} + +int64_t __fixtfdi(long double fa) +{ + u128_t a; + int32_t a_exp; + int a_sgn; + int64_t x; + f3_unpack(&a_sgn, &a_exp, &a, fa); + if (a_exp < 16383) + return 0; + if (a_exp > 16445) + return a_sgn ? -0x8000000000000000 : 0x7fffffffffffffff; + x = (a.x1 << 15 | a.x0 >> 49) >> (16446 - a_exp); + return a_sgn ? -x : x; +} + +uint32_t __fixunstfsi(long double fa) +{ + u128_t a; + int32_t a_exp; + int a_sgn; + f3_unpack(&a_sgn, &a_exp, &a, fa); + if (a_sgn || a_exp < 16369) + return 0; + if (a_exp > 16414) + return -1; + return a.x1 >> (16431 - a_exp); +} + +uint64_t __fixunstfdi(long double fa) +{ + u128_t a; + int32_t a_exp; + int a_sgn; + f3_unpack(&a_sgn, &a_exp, &a, fa); + if (a_sgn || a_exp < 16383) + return 0; + if (a_exp > 16446) + return -1; + return (a.x1 << 15 | a.x0 >> 49) >> (16446 - a_exp); +} + +long double __floatsitf(int32_t a) +{ + int sgn = 0; + int exp = 16414; + uint32_t mnt = a; + u128_t x = { 0, 0 }; + long double f; + int i; + if (a) { + if (a < 0) { + sgn = 1; + mnt = -mnt; + } + for (i = 16; i; i >>= 1) + if (!(mnt >> (32 - i))) { + mnt <<= i; + exp -= i; + } + x.x1 = ((uint64_t)sgn << 63 | (uint64_t)exp << 48 | + (uint64_t)(mnt << 1) << 16); + } + memcpy(&f, &x, 16); + return f; +} + +long double __floatditf(int64_t a) +{ + int sgn = 0; + int exp = 16446; + uint64_t mnt = a; + u128_t x = { 0, 0 }; + long double f; + int i; + if (a) { + if (a < 0) { + sgn = 1; + mnt = -mnt; + } + for (i = 32; i; i >>= 1) + if (!(mnt >> (64 - i))) { + mnt <<= i; + exp -= i; + } + x.x0 = mnt << 49; + x.x1 = (uint64_t)sgn << 63 | (uint64_t)exp << 48 | mnt << 1 >> 16; + } + memcpy(&f, &x, 16); + return f; +} + +long double __floatunsitf(uint32_t a) +{ + int exp = 16414; + uint32_t mnt = a; + u128_t x = { 0, 0 }; + long double f; + int i; + if (a) { + for (i = 16; i; i >>= 1) + if (!(mnt >> (32 - i))) { + mnt <<= i; + exp -= i; + } + x.x1 = (uint64_t)exp << 48 | (uint64_t)(mnt << 1) << 16; + } + memcpy(&f, &x, 16); + return f; +} + +long double __floatunditf(uint64_t a) +{ + int exp = 16446; + uint64_t mnt = a; + u128_t x = { 0, 0 }; + long double f; + int i; + if (a) { + for (i = 32; i; i >>= 1) + if (!(mnt >> (64 - i))) { + mnt <<= i; + exp -= i; + } + x.x0 = mnt << 49; + x.x1 = (uint64_t)exp << 48 | mnt << 1 >> 16; + } + memcpy(&f, &x, 16); + return f; +} + +static int f3_cmp(long double fa, long double fb) +{ + u128_t a, b; + memcpy(&a, &fa, 16); + memcpy(&b, &fb, 16); + return (!(a.x0 | a.x1 << 1 | b.x0 | b.x1 << 1) ? 0 : + ((a.x1 << 1 >> 49 == 0x7fff && (a.x0 | a.x1 << 16)) || + (b.x1 << 1 >> 49 == 0x7fff && (b.x0 | b.x1 << 16))) ? 2 : + a.x1 >> 63 != b.x1 >> 63 ? (int)(b.x1 >> 63) - (int)(a.x1 >> 63) : + a.x1 < b.x1 ? (int)(a.x1 >> 63 << 1) - 1 : + a.x1 > b.x1 ? 1 - (int)(a.x1 >> 63 << 1) : + a.x0 < b.x0 ? (int)(a.x1 >> 63 << 1) - 1 : + b.x0 < a.x0 ? 1 - (int)(a.x1 >> 63 << 1) : 0); +} + +int __eqtf2(long double a, long double b) +{ + return !!f3_cmp(a, b); +} + +int __netf2(long double a, long double b) +{ + return !!f3_cmp(a, b); +} + +int __lttf2(long double a, long double b) +{ + return f3_cmp(a, b); +} + +int __letf2(long double a, long double b) +{ + return f3_cmp(a, b); +} + +int __gttf2(long double a, long double b) +{ + return -f3_cmp(b, a); +} + +int __getf2(long double a, long double b) +{ + return -f3_cmp(b, a); +} diff --git a/external/TCC/lib/libtcc1.c b/external/TCC/lib/libtcc1.c new file mode 100644 index 00000000..a5fee7b9 --- /dev/null +++ b/external/TCC/lib/libtcc1.c @@ -0,0 +1,753 @@ +/* TCC runtime library. + Parts of this code are (c) 2002 Fabrice Bellard + + Copyright (C) 1987, 1988, 1992, 1994, 1995 Free Software Foundation, Inc. + +This file is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the +Free Software Foundation; either version 2, or (at your option) any +later version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file into combinations with other programs, +and to distribute those combinations without any restriction coming +from the use of this file. (The General Public License restrictions +do apply in other respects; for example, they cover modification of +the file, and distribution when not linked into a combine +executable.) + +This file is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. +*/ + +#include + +#define W_TYPE_SIZE 32 +#define BITS_PER_UNIT 8 + +typedef int Wtype; +typedef unsigned int UWtype; +typedef unsigned int USItype; +typedef long long DWtype; +typedef unsigned long long UDWtype; + +struct DWstruct { + Wtype low, high; +}; + +typedef union +{ + struct DWstruct s; + DWtype ll; +} DWunion; + +typedef long double XFtype; +#define WORD_SIZE (sizeof (Wtype) * BITS_PER_UNIT) +#define HIGH_WORD_COEFF (((UDWtype) 1) << WORD_SIZE) + +/* the following deal with IEEE single-precision numbers */ +#define EXCESS 126 +#define SIGNBIT 0x80000000 +#define HIDDEN (1 << 23) +#define SIGN(fp) ((fp) & SIGNBIT) +#define EXP(fp) (((fp) >> 23) & 0xFF) +#define MANT(fp) (((fp) & 0x7FFFFF) | HIDDEN) +#define PACK(s,e,m) ((s) | ((e) << 23) | (m)) + +/* the following deal with IEEE double-precision numbers */ +#define EXCESSD 1022 +#define HIDDEND (1 << 20) +#define EXPD(fp) (((fp.l.upper) >> 20) & 0x7FF) +#define SIGND(fp) ((fp.l.upper) & SIGNBIT) +#define MANTD(fp) (((((fp.l.upper) & 0xFFFFF) | HIDDEND) << 10) | \ + (fp.l.lower >> 22)) +#define HIDDEND_LL ((long long)1 << 52) +#define MANTD_LL(fp) ((fp.ll & (HIDDEND_LL-1)) | HIDDEND_LL) +#define PACKD_LL(s,e,m) (((long long)((s)+((e)<<20))<<32)|(m)) + +/* the following deal with x86 long double-precision numbers */ +#define EXCESSLD 16382 +#define EXPLD(fp) (fp.l.upper & 0x7fff) +#define SIGNLD(fp) ((fp.l.upper) & 0x8000) + +/* only for x86 */ +union ldouble_long { + long double ld; + struct { + unsigned long long lower; + unsigned short upper; + } l; +}; + +union double_long { + double d; +#if 1 + struct { + unsigned int lower; + int upper; + } l; +#else + struct { + int upper; + unsigned int lower; + } l; +#endif + long long ll; +}; + +union float_long { + float f; + unsigned int l; +}; + +/* XXX: we don't support several builtin supports for now */ +#if !defined(TCC_TARGET_X86_64) && !defined(TCC_TARGET_ARM) + +/* XXX: use gcc/tcc intrinsic ? */ +#if defined(TCC_TARGET_I386) +#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ + __asm__ ("subl %5,%1\n\tsbbl %3,%0" \ + : "=r" ((USItype) (sh)), \ + "=&r" ((USItype) (sl)) \ + : "0" ((USItype) (ah)), \ + "g" ((USItype) (bh)), \ + "1" ((USItype) (al)), \ + "g" ((USItype) (bl))) +#define umul_ppmm(w1, w0, u, v) \ + __asm__ ("mull %3" \ + : "=a" ((USItype) (w0)), \ + "=d" ((USItype) (w1)) \ + : "%0" ((USItype) (u)), \ + "rm" ((USItype) (v))) +#define udiv_qrnnd(q, r, n1, n0, dv) \ + __asm__ ("divl %4" \ + : "=a" ((USItype) (q)), \ + "=d" ((USItype) (r)) \ + : "0" ((USItype) (n0)), \ + "1" ((USItype) (n1)), \ + "rm" ((USItype) (dv))) +#define count_leading_zeros(count, x) \ + do { \ + USItype __cbtmp; \ + __asm__ ("bsrl %1,%0" \ + : "=r" (__cbtmp) : "rm" ((USItype) (x))); \ + (count) = __cbtmp ^ 31; \ + } while (0) +#else +#error unsupported CPU type +#endif + +/* most of this code is taken from libgcc2.c from gcc */ + +static UDWtype __udivmoddi4 (UDWtype n, UDWtype d, UDWtype *rp) +{ + DWunion ww; + DWunion nn, dd; + DWunion rr; + UWtype d0, d1, n0, n1, n2; + UWtype q0, q1; + UWtype b, bm; + + nn.ll = n; + dd.ll = d; + + d0 = dd.s.low; + d1 = dd.s.high; + n0 = nn.s.low; + n1 = nn.s.high; + +#if !defined(UDIV_NEEDS_NORMALIZATION) + if (d1 == 0) + { + if (d0 > n1) + { + /* 0q = nn / 0D */ + + udiv_qrnnd (q0, n0, n1, n0, d0); + q1 = 0; + + /* Remainder in n0. */ + } + else + { + /* qq = NN / 0d */ + + if (d0 == 0) + d0 = 1 / d0; /* Divide intentionally by zero. */ + + udiv_qrnnd (q1, n1, 0, n1, d0); + udiv_qrnnd (q0, n0, n1, n0, d0); + + /* Remainder in n0. */ + } + + if (rp != 0) + { + rr.s.low = n0; + rr.s.high = 0; + *rp = rr.ll; + } + } + +#else /* UDIV_NEEDS_NORMALIZATION */ + + if (d1 == 0) + { + if (d0 > n1) + { + /* 0q = nn / 0D */ + + count_leading_zeros (bm, d0); + + if (bm != 0) + { + /* Normalize, i.e. make the most significant bit of the + denominator set. */ + + d0 = d0 << bm; + n1 = (n1 << bm) | (n0 >> (W_TYPE_SIZE - bm)); + n0 = n0 << bm; + } + + udiv_qrnnd (q0, n0, n1, n0, d0); + q1 = 0; + + /* Remainder in n0 >> bm. */ + } + else + { + /* qq = NN / 0d */ + + if (d0 == 0) + d0 = 1 / d0; /* Divide intentionally by zero. */ + + count_leading_zeros (bm, d0); + + if (bm == 0) + { + /* From (n1 >= d0) /\ (the most significant bit of d0 is set), + conclude (the most significant bit of n1 is set) /\ (the + leading quotient digit q1 = 1). + + This special case is necessary, not an optimization. + (Shifts counts of W_TYPE_SIZE are undefined.) */ + + n1 -= d0; + q1 = 1; + } + else + { + /* Normalize. */ + + b = W_TYPE_SIZE - bm; + + d0 = d0 << bm; + n2 = n1 >> b; + n1 = (n1 << bm) | (n0 >> b); + n0 = n0 << bm; + + udiv_qrnnd (q1, n1, n2, n1, d0); + } + + /* n1 != d0... */ + + udiv_qrnnd (q0, n0, n1, n0, d0); + + /* Remainder in n0 >> bm. */ + } + + if (rp != 0) + { + rr.s.low = n0 >> bm; + rr.s.high = 0; + *rp = rr.ll; + } + } +#endif /* UDIV_NEEDS_NORMALIZATION */ + + else + { + if (d1 > n1) + { + /* 00 = nn / DD */ + + q0 = 0; + q1 = 0; + + /* Remainder in n1n0. */ + if (rp != 0) + { + rr.s.low = n0; + rr.s.high = n1; + *rp = rr.ll; + } + } + else + { + /* 0q = NN / dd */ + + count_leading_zeros (bm, d1); + if (bm == 0) + { + /* From (n1 >= d1) /\ (the most significant bit of d1 is set), + conclude (the most significant bit of n1 is set) /\ (the + quotient digit q0 = 0 or 1). + + This special case is necessary, not an optimization. */ + + /* The condition on the next line takes advantage of that + n1 >= d1 (true due to program flow). */ + if (n1 > d1 || n0 >= d0) + { + q0 = 1; + sub_ddmmss (n1, n0, n1, n0, d1, d0); + } + else + q0 = 0; + + q1 = 0; + + if (rp != 0) + { + rr.s.low = n0; + rr.s.high = n1; + *rp = rr.ll; + } + } + else + { + UWtype m1, m0; + /* Normalize. */ + + b = W_TYPE_SIZE - bm; + + d1 = (d1 << bm) | (d0 >> b); + d0 = d0 << bm; + n2 = n1 >> b; + n1 = (n1 << bm) | (n0 >> b); + n0 = n0 << bm; + + udiv_qrnnd (q0, n1, n2, n1, d1); + umul_ppmm (m1, m0, q0, d0); + + if (m1 > n1 || (m1 == n1 && m0 > n0)) + { + q0--; + sub_ddmmss (m1, m0, m1, m0, d1, d0); + } + + q1 = 0; + + /* Remainder in (n1n0 - m1m0) >> bm. */ + if (rp != 0) + { + sub_ddmmss (n1, n0, n1, n0, m1, m0); + rr.s.low = (n1 << b) | (n0 >> bm); + rr.s.high = n1 >> bm; + *rp = rr.ll; + } + } + } + } + + ww.s.low = q0; + ww.s.high = q1; + return ww.ll; +} + +#define __negdi2(a) (-(a)) + +long long __divdi3(long long u, long long v) +{ + int c = 0; + DWunion uu, vv; + DWtype w; + + uu.ll = u; + vv.ll = v; + + if (uu.s.high < 0) { + c = ~c; + uu.ll = __negdi2 (uu.ll); + } + if (vv.s.high < 0) { + c = ~c; + vv.ll = __negdi2 (vv.ll); + } + w = __udivmoddi4 (uu.ll, vv.ll, (UDWtype *) 0); + if (c) + w = __negdi2 (w); + return w; +} + +long long __moddi3(long long u, long long v) +{ + int c = 0; + DWunion uu, vv; + DWtype w; + + uu.ll = u; + vv.ll = v; + + if (uu.s.high < 0) { + c = ~c; + uu.ll = __negdi2 (uu.ll); + } + if (vv.s.high < 0) + vv.ll = __negdi2 (vv.ll); + + __udivmoddi4 (uu.ll, vv.ll, (UDWtype *) &w); + if (c) + w = __negdi2 (w); + return w; +} + +unsigned long long __udivdi3(unsigned long long u, unsigned long long v) +{ + return __udivmoddi4 (u, v, (UDWtype *) 0); +} + +unsigned long long __umoddi3(unsigned long long u, unsigned long long v) +{ + UDWtype w; + + __udivmoddi4 (u, v, &w); + return w; +} + +/* XXX: fix tcc's code generator to do this instead */ +long long __ashrdi3(long long a, int b) +{ +#ifdef __TINYC__ + DWunion u; + u.ll = a; + if (b >= 32) { + u.s.low = u.s.high >> (b - 32); + u.s.high = u.s.high >> 31; + } else if (b != 0) { + u.s.low = ((unsigned)u.s.low >> b) | (u.s.high << (32 - b)); + u.s.high = u.s.high >> b; + } + return u.ll; +#else + return a >> b; +#endif +} + +/* XXX: fix tcc's code generator to do this instead */ +unsigned long long __lshrdi3(unsigned long long a, int b) +{ +#ifdef __TINYC__ + DWunion u; + u.ll = a; + if (b >= 32) { + u.s.low = (unsigned)u.s.high >> (b - 32); + u.s.high = 0; + } else if (b != 0) { + u.s.low = ((unsigned)u.s.low >> b) | (u.s.high << (32 - b)); + u.s.high = (unsigned)u.s.high >> b; + } + return u.ll; +#else + return a >> b; +#endif +} + +/* XXX: fix tcc's code generator to do this instead */ +long long __ashldi3(long long a, int b) +{ +#ifdef __TINYC__ + DWunion u; + u.ll = a; + if (b >= 32) { + u.s.high = (unsigned)u.s.low << (b - 32); + u.s.low = 0; + } else if (b != 0) { + u.s.high = ((unsigned)u.s.high << b) | ((unsigned)u.s.low >> (32 - b)); + u.s.low = (unsigned)u.s.low << b; + } + return u.ll; +#else + return a << b; +#endif +} + +#ifndef COMMIT_4ad186c5ef61_IS_FIXED +long long __tcc_cvt_ftol(long double x) +{ + unsigned c0, c1; + long long ret; + __asm__ __volatile__ ("fnstcw %0" : "=m" (c0)); + c1 = c0 | 0x0C00; + __asm__ __volatile__ ("fldcw %0" : : "m" (c1)); + __asm__ __volatile__ ("fistpll %0" : "=m" (ret)); + __asm__ __volatile__ ("fldcw %0" : : "m" (c0)); + return ret; +} +#endif + +#endif /* !__x86_64__ */ + +/* XXX: fix tcc's code generator to do this instead */ +float __floatundisf(unsigned long long a) +{ + DWunion uu; + XFtype r; + + uu.ll = a; + if (uu.s.high >= 0) { + return (float)uu.ll; + } else { + r = (XFtype)uu.ll; + r += 18446744073709551616.0; + return (float)r; + } +} + +double __floatundidf(unsigned long long a) +{ + DWunion uu; + XFtype r; + + uu.ll = a; + if (uu.s.high >= 0) { + return (double)uu.ll; + } else { + r = (XFtype)uu.ll; + r += 18446744073709551616.0; + return (double)r; + } +} + +long double __floatundixf(unsigned long long a) +{ + DWunion uu; + XFtype r; + + uu.ll = a; + if (uu.s.high >= 0) { + return (long double)uu.ll; + } else { + r = (XFtype)uu.ll; + r += 18446744073709551616.0; + return (long double)r; + } +} + +unsigned long long __fixunssfdi (float a1) +{ + register union float_long fl1; + register int exp; + register unsigned long l; + + fl1.f = a1; + + if (fl1.l == 0) + return (0); + + exp = EXP (fl1.l) - EXCESS - 24; + + l = MANT(fl1.l); + if (exp >= 41) + return (unsigned long long)-1; + else if (exp >= 0) + return (unsigned long long)l << exp; + else if (exp >= -23) + return l >> -exp; + else + return 0; +} + +unsigned long long __fixunsdfdi (double a1) +{ + register union double_long dl1; + register int exp; + register unsigned long long l; + + dl1.d = a1; + + if (dl1.ll == 0) + return (0); + + exp = EXPD (dl1) - EXCESSD - 53; + + l = MANTD_LL(dl1); + + if (exp >= 12) + return (unsigned long long)-1; + else if (exp >= 0) + return l << exp; + else if (exp >= -52) + return l >> -exp; + else + return 0; +} + +unsigned long long __fixunsxfdi (long double a1) +{ + register union ldouble_long dl1; + register int exp; + register unsigned long long l; + + dl1.ld = a1; + + if (dl1.l.lower == 0 && dl1.l.upper == 0) + return (0); + + exp = EXPLD (dl1) - EXCESSLD - 64; + + l = dl1.l.lower; + + if (exp > 0) + return (unsigned long long)-1; + else if (exp >= -63) + return l >> -exp; + else + return 0; +} + +long long __fixsfdi (float a1) +{ + long long ret; int s; + ret = __fixunssfdi((s = a1 >= 0) ? a1 : -a1); + return s ? ret : -ret; +} + +long long __fixdfdi (double a1) +{ + long long ret; int s; + ret = __fixunsdfdi((s = a1 >= 0) ? a1 : -a1); + return s ? ret : -ret; +} + +long long __fixxfdi (long double a1) +{ + long long ret; int s; + ret = __fixunsxfdi((s = a1 >= 0) ? a1 : -a1); + return s ? ret : -ret; +} + +#if defined(TCC_TARGET_X86_64) && !defined(_WIN64) + +#ifndef __TINYC__ +#include +#include +#include +#else +/* Avoid including stdlib.h because it is not easily available when + cross compiling */ +#include /* size_t definition is needed for a x86_64-tcc to parse memset() */ +extern void *malloc(unsigned long long); +extern void *memset(void *s, int c, size_t n); +extern void free(void*); +extern void abort(void); +#endif + +enum __va_arg_type { + __va_gen_reg, __va_float_reg, __va_stack +}; + +//This should be in sync with the declaration on our include/stdarg.h +/* GCC compatible definition of va_list. */ +typedef struct { + unsigned int gp_offset; + unsigned int fp_offset; + union { + unsigned int overflow_offset; + char *overflow_arg_area; + }; + char *reg_save_area; +} __va_list_struct; + +#undef __va_start +#undef __va_arg +#undef __va_copy +#undef __va_end + +void __va_start(__va_list_struct *ap, void *fp) +{ + memset(ap, 0, sizeof(__va_list_struct)); + *ap = *(__va_list_struct *)((char *)fp - 16); + ap->overflow_arg_area = (char *)fp + ap->overflow_offset; + ap->reg_save_area = (char *)fp - 176 - 16; +} + +void *__va_arg(__va_list_struct *ap, + enum __va_arg_type arg_type, + int size, int align) +{ + size = (size + 7) & ~7; + align = (align + 7) & ~7; + switch (arg_type) { + case __va_gen_reg: + if (ap->gp_offset + size <= 48) { + ap->gp_offset += size; + return ap->reg_save_area + ap->gp_offset - size; + } + goto use_overflow_area; + + case __va_float_reg: + if (ap->fp_offset < 128 + 48) { + ap->fp_offset += 16; + return ap->reg_save_area + ap->fp_offset - 16; + } + size = 8; + goto use_overflow_area; + + case __va_stack: + use_overflow_area: + ap->overflow_arg_area += size; + ap->overflow_arg_area = (char*)((intptr_t)(ap->overflow_arg_area + align - 1) & -(intptr_t)align); + return ap->overflow_arg_area - size; + + default: +#ifndef __TINYC__ + fprintf(stderr, "unknown ABI type for __va_arg\n"); +#endif + abort(); + } +} + +#endif /* __x86_64__ */ + +/* Flushing for tccrun */ +#if defined(TCC_TARGET_X86_64) || defined(TCC_TARGET_I386) + +void __clear_cache(void *beginning, void *end) +{ +} + +#elif defined(TCC_TARGET_ARM) + +#define _GNU_SOURCE +#include +#include +#include + +void __clear_cache(void *beginning, void *end) +{ +/* __ARM_NR_cacheflush is kernel private and should not be used in user space. + * However, there is no ARM asm parser in tcc so we use it for now */ +#if 1 + syscall(__ARM_NR_cacheflush, beginning, end, 0); +#else + __asm__ ("push {r7}\n\t" + "mov r7, #0xf0002\n\t" + "mov r2, #0\n\t" + "swi 0\n\t" + "pop {r7}\n\t" + "ret"); +#endif +} + +#else +#warning __clear_cache not defined for this architecture, avoid using tcc -run +#endif diff --git a/external/TCC/lib/testfp.c b/external/TCC/lib/testfp.c new file mode 100644 index 00000000..63342b42 --- /dev/null +++ b/external/TCC/lib/testfp.c @@ -0,0 +1,510 @@ +/* + * Test 128-bit floating-point arithmetic on arm64: + * build with two different compilers and compare the output. + * + * Copyright (c) 2015 Edmund Grimley Evans + * + * Copying and distribution of this file, with or without modification, + * are permitted in any medium without royalty provided the copyright + * notice and this notice are preserved. This file is offered as-is, + * without any warranty. + */ + +#include +#include +#include +#include + +#define check(x) ((x) ? (void)0 : check_fail(#x, __FILE__, __LINE__)) + +void check_fail(const char *assertion, const char *file, unsigned int line) +{ + printf("%s:%d: Check (%s) failed.", file, line, assertion); + exit(1); +} + +typedef struct { + unsigned long long x0, x1; +} u128_t; + +float copy_fi(uint32_t x) +{ + float f; + memcpy(&f, &x, 4); + return f; +} + +double copy_di(uint64_t x) +{ + double f; + memcpy(&f, &x, 8); + return f; +} + +long double copy_ldi(u128_t x) +{ + long double f; + memcpy(&f, &x, 16); + return f; +} + +uint32_t copy_if(float f) +{ + uint32_t x; + memcpy(&x, &f, 4); + return x; +} + +uint64_t copy_id(double f) +{ + uint64_t x; + memcpy(&x, &f, 8); + return x; +} + +u128_t copy_ild(long double f) +{ + u128_t x; + memcpy(&x, &f, 16); + return x; +} + +long double make(int sgn, int exp, uint64_t high, uint64_t low) +{ + u128_t x = { low, + (0x0000ffffffffffff & high) | + (0x7fff000000000000 & (uint64_t)exp << 48) | + (0x8000000000000000 & (uint64_t)sgn << 63) }; + return copy_ldi(x); +} + +void cmp(long double a, long double b) +{ + u128_t ax = copy_ild(a); + u128_t bx = copy_ild(b); + int eq = (a == b); + int ne = (a != b); + int lt = (a < b); + int le = (a <= b); + int gt = (a > b); + int ge = (a >= b); + + check(eq == 0 || eq == 1); + check(lt == 0 || lt == 1); + check(gt == 0 || gt == 1); + check(ne == !eq && le == (lt | eq) && ge == (gt | eq)); + check(eq + lt + gt < 2); + + printf("cmp %016llx%016llx %016llx%016llx %d %d %d\n", + ax.x1, ax.x0, bx.x1, bx.x0, lt, eq, gt); +} + +void cmps(void) +{ + int i, j; + + for (i = 0; i < 2; i++) + for (j = 0; j < 2; j++) + cmp(make(i, 0, 0, 0), make(j, 0, 0, 0)); + + for (i = 0; i < 2; i++) { + for (j = 0; j < 64; j++) { + long double f1 = make(i, 32767, (uint64_t)1 << j, 0); + long double f2 = make(i, 32767, 0, (uint64_t)1 << j); + cmp(f1, 0); + cmp(f2, 0); + cmp(0, f1); + cmp(0, f2); + } + } + + for (i = 0; i < 6; i++) + for (j = 0; j < 6; j++) + cmp(make(i & 1, i >> 1, 0, 0), + make(j & 1, j >> 1, 0, 0)); + + for (i = 0; i < 2; i++) { + for (j = 0; j < 2; j++) { + int a, b; + for (a = 0; a < 2; a++) { + for (b = 0; b < 2; b++) { + cmp(make(i, j, a, b), make(i, j, 0, 0)); + cmp(make(i, j, 0, 0), make(i, j, a, b)); + } + } + } + } +} + +void xop(const char *name, long double a, long double b, long double c) +{ + u128_t ax = copy_ild(a); + u128_t bx = copy_ild(b); + u128_t cx = copy_ild(c); + printf("%s %016llx%016llx %016llx%016llx %016llx%016llx\n", + name, ax.x1, ax.x0, bx.x1, bx.x0, cx.x1, cx.x0); +} + +void fadd(long double a, long double b) +{ + xop("add", a, b, a + b); +} + +void fsub(long double a, long double b) +{ + xop("sub", a, b, a - b); +} + +void fmul(long double a, long double b) +{ + xop("mul", a, b, a * b); +} + +void fdiv(long double a, long double b) +{ + xop("div", a, b, a / b); +} + +void nanz(void) +{ + // Check NaNs: + { + long double x[7]; + int i, j, n = 0; + x[n++] = make(0, 32000, 0x95132b76effc, 0xd79035214b4f8d53); + x[n++] = make(1, 32001, 0xbe71d7a51587, 0x30601c6815d6c3ac); + x[n++] = make(0, 32767, 0, 1); + x[n++] = make(0, 32767, (uint64_t)1 << 46, 0); + x[n++] = make(1, 32767, (uint64_t)1 << 47, 0); + x[n++] = make(1, 32767, 0x7596c7099ad5, 0xe25fed2c58f73fc9); + x[n++] = make(0, 32767, 0x835d143360f9, 0x5e315efb35630666); + check(n == sizeof(x) / sizeof(*x)); + for (i = 0; i < n; i++) { + for (j = 0; j < n; j++) { + fadd(x[i], x[j]); + fsub(x[i], x[j]); + fmul(x[i], x[j]); + fdiv(x[i], x[j]); + } + } + } + + // Check infinities and zeroes: + { + long double x[6]; + int i, j, n = 0; + x[n++] = make(1, 32000, 0x62acda85f700, 0x47b6c9f35edc4044); + x[n++] = make(0, 32001, 0x94b7abf55af7, 0x9f425fe354428e19); + x[n++] = make(0, 32767, 0, 0); + x[n++] = make(1, 32767, 0, 0); + x[n++] = make(0, 0, 0, 0); + x[n++] = make(1, 0, 0, 0); + check(n == sizeof(x) / sizeof(*x)); + for (i = 0; i < n; i++) { + for (j = 0; j < n; j++) { + fadd(x[i], x[j]); + fsub(x[i], x[j]); + fmul(x[i], x[j]); + fdiv(x[i], x[j]); + } + } + } +} + +void adds(void) +{ + // Check shifting and add/sub: + { + int i; + for (i = -130; i <= 130; i++) { + int s1 = (uint32_t)i % 3 < 1; + int s2 = (uint32_t)i % 5 < 2; + fadd(make(s1, 16384 , 0x502c065e4f71a65d, 0xd2f9bdb031f4f031), + make(s2, 16384 + i, 0xae267395a9bc1033, 0xb56b5800da1ba448)); + } + } + + // Check normalisation: + { + uint64_t a0 = 0xc6bab0a6afbef5ed; + uint64_t a1 = 0x4f84136c4a2e9b52; + int ee[] = { 0, 1, 10000 }; + int e, i; + for (e = 0; e < sizeof(ee) / sizeof(*ee); e++) { + int exp = ee[e]; + fsub(make(0, exp, a1, a0), make(0, 0, 0, 0)); + for (i = 63; i >= 0; i--) + fsub(make(0, exp, a1 | (uint64_t)1 << i >> 1, a0), + make(0, exp, a1 >> i << i, 0)); + for (i = 63; i >=0; i--) + fsub(make(0, exp, a1, a0 | (uint64_t)1 << i >> 1), + make(0, exp, a1, a0 >> i << i)); + } + } + + // Carry/overflow from rounding: + { + fadd(make(0, 114, -1, -1), make(0, 1, 0, 0)); + fadd(make(0, 32766, -1, -1), make(0, 32653, 0, 0)); + fsub(make(1, 32766, -1, -1), make(0, 32653, 0, 0)); + } +} + +void muls(void) +{ + int i, j; + + { + long double max = make(0, 32766, -1, -1); + long double min = make(0, 0, 0, 1); + fmul(max, max); + fmul(max, min); + fmul(min, min); + } + + for (i = 117; i > 0; i--) + fmul(make(0, 16268, 0x643dcea76edc, 0xe0877a598403627a), + make(i & 1, i, 0, 0)); + + fmul(make(0, 16383, -1, -3), make(0, 16383, 0, 1)); + // Round to next exponent: + fmul(make(0, 16383, -1, -2), make(0, 16383, 0, 1)); + // Round from subnormal to normal: + fmul(make(0, 1, -1, -1), make(0, 16382, 0, 0)); + + for (i = 0; i < 2; i++) + for (j = 0; j < 112; j++) + fmul(make(0, 16383, (uint64_t)1 << i, 0), + make(0, 16383, + j < 64 ? 0 : (uint64_t)1 << (j - 64), + j < 64 ? (uint64_t)1 << j : 0)); +} + +void divs(void) +{ + int i; + + { + long double max = make(0, 32766, -1, -1); + long double min = make(0, 0, 0, 1); + fdiv(max, max); + fdiv(max, min); + fdiv(min, max); + fdiv(min, min); + } + + for (i = 0; i < 64; i++) + fdiv(make(0, 16383, -1, -1), make(0, 16383, -1, -(uint64_t)1 << i)); + for (i = 0; i < 48; i++) + fdiv(make(0, 16383, -1, -1), make(0, 16383, -(uint64_t)1 << i, 0)); +} + +void cvtlsw(int32_t a) +{ + long double f = a; + u128_t x = copy_ild(f); + printf("cvtlsw %08lx %016llx%016llx\n", (long)(uint32_t)a, x.x1, x.x0); +} + +void cvtlsx(int64_t a) +{ + long double f = a; + u128_t x = copy_ild(f); + printf("cvtlsx %016llx %016llx%016llx\n", + (long long)(uint64_t)a, x.x1, x.x0); +} + +void cvtluw(uint32_t a) +{ + long double f = a; + u128_t x = copy_ild(f); + printf("cvtluw %08lx %016llx%016llx\n", (long)a, x.x1, x.x0); +} + +void cvtlux(uint64_t a) +{ + long double f = a; + u128_t x = copy_ild(f); + printf("cvtlux %016llx %016llx%016llx\n", (long long)a, x.x1, x.x0); +} + +void cvtil(long double a) +{ + u128_t x = copy_ild(a); + int32_t b1 = a; + int64_t b2 = a; + uint32_t b3 = a; + uint64_t b4 = a; + printf("cvtswl %016llx%016llx %08lx\n", + x.x1, x.x0, (long)(uint32_t)b1); + printf("cvtsxl %016llx%016llx %016llx\n", + x.x1, x.x0, (long long)(uint64_t)b2); + printf("cvtuwl %016llx%016llx %08lx\n", + x.x1, x.x0, (long)b3); + printf("cvtuxl %016llx%016llx %016llx\n", + x.x1, x.x0, (long long)b4); +} + +void cvtlf(float a) +{ + uint32_t ax = copy_if(a); + long double b = a; + u128_t bx = copy_ild(b); + printf("cvtlf %08lx %016llx%016llx\n", (long)ax, bx.x1, bx.x0); +} + +void cvtld(double a) +{ + uint64_t ax = copy_id(a); + long double b = a; + u128_t bx = copy_ild(b); + printf("cvtld %016llx %016llx%016llx\n", (long long)ax, bx.x1, bx.x0); +} + +void cvtfl(long double a) +{ + u128_t ax = copy_ild(a); + float b = a; + uint32_t bx = copy_if(b); + printf("cvtfl %016llx%016llx %08lx\n", ax.x1, ax.x0, (long)bx); +} + +void cvtdl(long double a) +{ + u128_t ax = copy_ild(a); + double b = a; + uint64_t bx = copy_id(b); + printf("cvtdl %016llx%016llx %016llx\n", ax.x1, ax.x0, (long long)bx); +} + +void cvts(void) +{ + int i, j; + + { + uint32_t x = 0xad040c5b; + cvtlsw(0); + for (i = 0; i < 31; i++) + cvtlsw(x >> (31 - i)); + for (i = 0; i < 31; i++) + cvtlsw(-(x >> (31 - i))); + cvtlsw(0x80000000); + } + { + uint64_t x = 0xb630a248cad9afd2; + cvtlsx(0); + for (i = 0; i < 63; i++) + cvtlsx(x >> (63 - i)); + for (i = 0; i < 63; i++) + cvtlsx(-(x >> (63 - i))); + cvtlsx(0x8000000000000000); + } + { + uint32_t x = 0xad040c5b; + cvtluw(0); + for (i = 0; i < 32; i++) + cvtluw(x >> (31 - i)); + } + { + uint64_t x = 0xb630a248cad9afd2; + cvtlux(0); + for (i = 0; i < 64; i++) + cvtlux(x >> (63 - i)); + } + + for (i = 0; i < 2; i++) { + cvtil(make(i, 32767, 0, 1)); + cvtil(make(i, 32767, (uint64_t)1 << 47, 0)); + cvtil(make(i, 32767, 123, 456)); + cvtil(make(i, 32767, 0, 0)); + cvtil(make(i, 16382, -1, -1)); + cvtil(make(i, 16383, -1, -1)); + cvtil(make(i, 16384, 0x7fffffffffff, -1)); + cvtil(make(i, 16384, 0x800000000000, 0)); + for (j = 0; j < 68; j++) + cvtil(make(i, 16381 + j, 0xd4822c0a10ec, 0x1fe2f8b2669f5c9d)); + } + + cvtlf(copy_fi(0x00000000)); + cvtlf(copy_fi(0x456789ab)); + cvtlf(copy_fi(0x7f800000)); + cvtlf(copy_fi(0x7f923456)); + cvtlf(copy_fi(0x7fdbcdef)); + cvtlf(copy_fi(0x80000000)); + cvtlf(copy_fi(0xabcdef12)); + cvtlf(copy_fi(0xff800000)); + cvtlf(copy_fi(0xff923456)); + cvtlf(copy_fi(0xffdbcdef)); + + cvtld(copy_di(0x0000000000000000)); + cvtld(copy_di(0x456789abcdef0123)); + cvtld(copy_di(0x7ff0000000000000)); + cvtld(copy_di(0x7ff123456789abcd)); + cvtld(copy_di(0x7ffabcdef1234567)); + cvtld(copy_di(0x8000000000000000)); + cvtld(copy_di(0xcdef123456789abc)); + cvtld(copy_di(0xfff0000000000000)); + cvtld(copy_di(0xfff123456789abcd)); + cvtld(copy_di(0xfffabcdef1234567)); + + for (i = 0; i < 2; i++) { \ + cvtfl(make(i, 0, 0, 0)); + cvtfl(make(i, 16232, -1, -1)); + cvtfl(make(i, 16233, 0, 0)); + cvtfl(make(i, 16233, 0, 1)); + cvtfl(make(i, 16383, 0xab0ffd000000, 0)); + cvtfl(make(i, 16383, 0xab0ffd000001, 0)); + cvtfl(make(i, 16383, 0xab0ffeffffff, 0)); + cvtfl(make(i, 16383, 0xab0fff000000, 0)); + cvtfl(make(i, 16383, 0xab0fff000001, 0)); + cvtfl(make(i, 16510, 0xfffffeffffff, -1)); + cvtfl(make(i, 16510, 0xffffff000000, 0)); + cvtfl(make(i, 16511, 0, 0)); + cvtfl(make(i, 32767, 0, 0)); + cvtfl(make(i, 32767, 0, 1)); + cvtfl(make(i, 32767, 0x4cbe01ac5f40, 0x75cee3c6afbb00b5)); + cvtfl(make(i, 32767, 0x800000000000, 1)); + cvtfl(make(i, 32767, 0xa11caaaf6a52, 0x696033e871eab099)); + } + + for (i = 0; i < 2; i++) { + cvtdl(make(i, 0, 0, 0)); + cvtdl(make(i, 15307, -1, -1)); + cvtdl(make(i, 15308, 0, 0)); + cvtdl(make(i, 15308, 0, 1)); + cvtdl(make(i, 16383, 0xabc123abc0ff, 0xe800000000000000)); + cvtdl(make(i, 16383, 0xabc123abc0ff, 0xe800000000000001)); + cvtdl(make(i, 16383, 0xabc123abc0ff, 0xf7ffffffffffffff)); + cvtdl(make(i, 16383, 0xabc123abc0ff, 0xf800000000000000)); + cvtdl(make(i, 16383, 0xabc123abc0ff, 0xf800000000000001)); + cvtdl(make(i, 17406, 0xffffffffffff, 0xf7ffffffffffffff)); + cvtdl(make(i, 17406, 0xffffffffffff, 0xf800000000000000)); + cvtdl(make(i, 17407, 0, 0)); + cvtdl(make(i, 32767, 0, 0)); + cvtdl(make(i, 32767, 0, 1)); + cvtdl(make(i, 32767, 0x4cbe01ac5f40, 0x75cee3c6afbb00b5)); + cvtdl(make(i, 32767, 0x800000000000, 1)); + cvtdl(make(i, 32767, 0xa11caaaf6a52, 0x696033e871eab099)); + } +} + +void tests(void) +{ + cmps(); + nanz(); + adds(); + muls(); + divs(); + cvts(); +} + +int main() +{ +#ifdef __aarch64__ + tests(); +#else + printf("This test program is intended for a little-endian architecture\n" + "with an IEEE-standard 128-bit long double.\n"); +#endif + return 0; +} diff --git a/external/TCC/libtcc.c b/external/TCC/libtcc.c new file mode 100644 index 00000000..f51774fb --- /dev/null +++ b/external/TCC/libtcc.c @@ -0,0 +1,2327 @@ +/* + * TCC - Tiny C Compiler + * + * Copyright (c) 2001-2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" + +/********************************************************/ +/* global variables */ + +/* use GNU C extensions */ +ST_DATA int gnu_ext = 1; + +/* use TinyCC extensions */ +ST_DATA int tcc_ext = 1; + +/* XXX: get rid of this ASAP */ +ST_DATA struct TCCState *tcc_state; + +/********************************************************/ + +#ifdef ONE_SOURCE +#include "tccpp.c" +#include "tccgen.c" +#include "tccelf.c" +#include "tccrun.c" +#ifdef TCC_TARGET_I386 +#include "i386-gen.c" +#endif +#ifdef TCC_TARGET_ARM +#include "arm-gen.c" +#endif +#ifdef TCC_TARGET_ARM64 +#include "arm64-gen.c" +#endif +#ifdef TCC_TARGET_C67 +#include "c67-gen.c" +#endif +#ifdef TCC_TARGET_X86_64 +#include "x86_64-gen.c" +#endif +#ifdef CONFIG_TCC_ASM +#include "tccasm.c" +#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 +#include "i386-asm.c" +#endif +#endif +#ifdef TCC_TARGET_COFF +#include "tcccoff.c" +#endif +#ifdef TCC_TARGET_PE +#include "tccpe.c" +#endif +#endif /* ONE_SOURCE */ + +/********************************************************/ +#ifndef CONFIG_TCC_ASM +ST_FUNC void asm_instr(void) +{ + tcc_error("inline asm() not supported"); +} +ST_FUNC void asm_global_instr(void) +{ + tcc_error("inline asm() not supported"); +} +#endif + +/********************************************************/ +#ifdef _WIN32 +static char *normalize_slashes(char *path) +{ + char *p; + for (p = path; *p; ++p) + if (*p == '\\') + *p = '/'; + return path; +} + +static HMODULE tcc_module; + +/* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */ +static void tcc_set_lib_path_w32(TCCState *s) +{ + char path[1024], *p; + GetModuleFileNameA(tcc_module, path, sizeof path); + p = tcc_basename(normalize_slashes(strlwr(path))); + if (p - 5 > path && 0 == strncmp(p - 5, "/bin/", 5)) + p -= 5; + else if (p > path) + p--; + *p = 0; + tcc_set_lib_path(s, path); +} + +#ifdef TCC_TARGET_PE +static void tcc_add_systemdir(TCCState *s) +{ + char buf[1000]; + GetSystemDirectory(buf, sizeof buf); + tcc_add_library_path(s, normalize_slashes(buf)); +} +#endif + +#ifndef CONFIG_TCC_STATIC +void dlclose(void *p) +{ + FreeLibrary((HMODULE)p); +} +#endif + +#ifdef LIBTCC_AS_DLL +BOOL WINAPI DllMain (HINSTANCE hDll, DWORD dwReason, LPVOID lpReserved) +{ + if (DLL_PROCESS_ATTACH == dwReason) + tcc_module = hDll; + return TRUE; +} +#endif +#endif + +/********************************************************/ +/* copy a string and truncate it. */ +PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s) +{ + char *q, *q_end; + int c; + + if (buf_size > 0) { + q = buf; + q_end = buf + buf_size - 1; + while (q < q_end) { + c = *s++; + if (c == '\0') + break; + *q++ = c; + } + *q = '\0'; + } + return buf; +} + +/* strcat and truncate. */ +PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s) +{ + int len; + len = strlen(buf); + if (len < buf_size) + pstrcpy(buf + len, buf_size - len, s); + return buf; +} + +PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num) +{ + memcpy(out, in, num); + out[num] = '\0'; + return out; +} + +/* extract the basename of a file */ +PUB_FUNC char *tcc_basename(const char *name) +{ + char *p = strchr(name, 0); + while (p > name && !IS_DIRSEP(p[-1])) + --p; + return p; +} + +/* extract extension part of a file + * + * (if no extension, return pointer to end-of-string) + */ +PUB_FUNC char *tcc_fileextension (const char *name) +{ + char *b = tcc_basename(name); + char *e = strrchr(b, '.'); + return e ? e : strchr(b, 0); +} + +/********************************************************/ +/* memory management */ + +#undef free +#undef malloc +#undef realloc + +#ifndef MEM_DEBUG + +PUB_FUNC void tcc_free(void *ptr) +{ + free(ptr); +} + +PUB_FUNC void *tcc_malloc(unsigned long size) +{ + void *ptr; + ptr = malloc(size); + if (!ptr && size) + tcc_error("memory full (malloc)"); + return ptr; +} + +PUB_FUNC void *tcc_mallocz(unsigned long size) +{ + void *ptr; + ptr = tcc_malloc(size); + memset(ptr, 0, size); + return ptr; +} + +PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size) +{ + void *ptr1; + ptr1 = realloc(ptr, size); + if (!ptr1 && size) + tcc_error("memory full (realloc)"); + return ptr1; +} + +PUB_FUNC char *tcc_strdup(const char *str) +{ + char *ptr; + ptr = tcc_malloc(strlen(str) + 1); + strcpy(ptr, str); + return ptr; +} + +PUB_FUNC void tcc_memstats(int bench) +{ +} + +#else + +#define MEM_DEBUG_MAGIC1 0xFEEDDEB1 +#define MEM_DEBUG_MAGIC2 0xFEEDDEB2 +#define MEM_DEBUG_FILE_LEN 15 + +struct mem_debug_header { + size_t magic1; + size_t size; + struct mem_debug_header *prev; + struct mem_debug_header *next; + size_t line_num; + char file_name[MEM_DEBUG_FILE_LEN + 1]; + size_t magic2; +}; + +typedef struct mem_debug_header mem_debug_header_t; + +static mem_debug_header_t *mem_debug_chain; +static size_t mem_cur_size; +static size_t mem_max_size; + +PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line) +{ + void *ptr; + mem_debug_header_t *header; + + ptr = malloc(sizeof(mem_debug_header_t) + size); + if (!ptr) + tcc_error("memory full (malloc)"); + + mem_cur_size += size; + if (mem_cur_size > mem_max_size) + mem_max_size = mem_cur_size; + + header = (mem_debug_header_t *)ptr; + + header->magic1 = MEM_DEBUG_MAGIC1; + header->magic2 = MEM_DEBUG_MAGIC2; + header->size = size; + header->line_num = line; + + strncpy(header->file_name, file, MEM_DEBUG_FILE_LEN); + header->file_name[MEM_DEBUG_FILE_LEN] = 0; + + header->next = mem_debug_chain; + header->prev = NULL; + + if (header->next) + header->next->prev = header; + + mem_debug_chain = header; + + ptr = (char *)ptr + sizeof(mem_debug_header_t); + return ptr; +} + +PUB_FUNC void tcc_free_debug(void *ptr) +{ + mem_debug_header_t *header; + + if (!ptr) + return; + + ptr = (char *)ptr - sizeof(mem_debug_header_t); + header = (mem_debug_header_t *)ptr; + if (header->magic1 != MEM_DEBUG_MAGIC1 || + header->magic2 != MEM_DEBUG_MAGIC2 || + header->size == (size_t)-1 ) + { + tcc_error("tcc_free check failed"); + } + + mem_cur_size -= header->size; + header->size = (size_t)-1; + + if (header->next) + header->next->prev = header->prev; + + if (header->prev) + header->prev->next = header->next; + + if (header == mem_debug_chain) + mem_debug_chain = header->next; + + free(ptr); +} + + +PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line) +{ + void *ptr; + ptr = tcc_malloc_debug(size,file,line); + memset(ptr, 0, size); + return ptr; +} + +PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line) +{ + mem_debug_header_t *header; + int mem_debug_chain_update = 0; + + if (!ptr) { + ptr = tcc_malloc_debug(size, file, line); + return ptr; + } + + ptr = (char *)ptr - sizeof(mem_debug_header_t); + header = (mem_debug_header_t *)ptr; + if (header->magic1 != MEM_DEBUG_MAGIC1 || + header->magic2 != MEM_DEBUG_MAGIC2 || + header->size == (size_t)-1 ) + { + check_error: + tcc_error("tcc_realloc check failed"); + } + + mem_debug_chain_update = (header == mem_debug_chain); + + mem_cur_size -= header->size; + ptr = realloc(ptr, sizeof(mem_debug_header_t) + size); + if (!ptr) + tcc_error("memory full (realloc)"); + + header = (mem_debug_header_t *)ptr; + if (header->magic1 != MEM_DEBUG_MAGIC1 || + header->magic2 != MEM_DEBUG_MAGIC2) + { + goto check_error; + } + + mem_cur_size += size; + if (mem_cur_size > mem_max_size) + mem_max_size = mem_cur_size; + + header->size = size; + if (header->next) + header->next->prev = header; + + if (header->prev) + header->prev->next = header; + + if (mem_debug_chain_update) + mem_debug_chain = header; + + ptr = (char *)ptr + sizeof(mem_debug_header_t); + return ptr; +} + +PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line) +{ + char *ptr; + ptr = tcc_malloc_debug(strlen(str) + 1, file, line); + strcpy(ptr, str); + return ptr; +} + +PUB_FUNC void tcc_memstats(int bench) +{ + if (mem_cur_size) { + mem_debug_header_t *header = mem_debug_chain; + + fprintf(stderr, "MEM_DEBUG: mem_leak= %d bytes, mem_max_size= %d bytes\n", + mem_cur_size, mem_max_size); + + while (header) { + fprintf(stderr, " file %s, line %u: %u bytes\n", + header->file_name, header->line_num, header->size); + header = header->next; + } + } + else if (bench) + fprintf(stderr, "mem_max_size= %d bytes\n", mem_max_size); +} + +#undef MEM_DEBUG_MAGIC1 +#undef MEM_DEBUG_MAGIC2 +#undef MEM_DEBUG_FILE_LEN + +#endif + +#define free(p) use_tcc_free(p) +#define malloc(s) use_tcc_malloc(s) +#define realloc(p, s) use_tcc_realloc(p, s) + +/********************************************************/ +/* dynarrays */ + +ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data) +{ + int nb, nb_alloc; + void **pp; + + nb = *nb_ptr; + pp = *ptab; + /* every power of two we double array size */ + if ((nb & (nb - 1)) == 0) { + if (!nb) + nb_alloc = 1; + else + nb_alloc = nb * 2; + pp = tcc_realloc(pp, nb_alloc * sizeof(void *)); + *ptab = pp; + } + pp[nb++] = data; + *nb_ptr = nb; +} + +ST_FUNC void dynarray_reset(void *pp, int *n) +{ + void **p; + for (p = *(void***)pp; *n; ++p, --*n) + if (*p) + tcc_free(*p); + tcc_free(*(void**)pp); + *(void**)pp = NULL; +} + +static void tcc_split_path(TCCState *s, void ***p_ary, int *p_nb_ary, const char *in) +{ + const char *p; + do { + int c; + CString str; + + cstr_new(&str); + for (p = in; c = *p, c != '\0' && c != PATHSEP; ++p) { + if (c == '{' && p[1] && p[2] == '}') { + c = p[1], p += 2; + if (c == 'B') + cstr_cat(&str, s->tcc_lib_path); + } else { + cstr_ccat(&str, c); + } + } + cstr_ccat(&str, '\0'); + dynarray_add(p_ary, p_nb_ary, str.data); + in = p+1; + } while (*p); +} + +/********************************************************/ + +ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags) +{ + Section *sec; + + sec = tcc_mallocz(sizeof(Section) + strlen(name)); + strcpy(sec->name, name); + sec->sh_type = sh_type; + sec->sh_flags = sh_flags; + switch(sh_type) { + case SHT_HASH: + case SHT_REL: + case SHT_RELA: + case SHT_DYNSYM: + case SHT_SYMTAB: + case SHT_DYNAMIC: + sec->sh_addralign = 4; + break; + case SHT_STRTAB: + sec->sh_addralign = 1; + break; + default: + sec->sh_addralign = 32; /* default conservative alignment */ + break; + } + + if (sh_flags & SHF_PRIVATE) { + dynarray_add((void ***)&s1->priv_sections, &s1->nb_priv_sections, sec); + } else { + sec->sh_num = s1->nb_sections; + dynarray_add((void ***)&s1->sections, &s1->nb_sections, sec); + } + + return sec; +} + +static void free_section(Section *s) +{ + tcc_free(s->data); +} + +/* realloc section and set its content to zero */ +ST_FUNC void section_realloc(Section *sec, unsigned long new_size) +{ + unsigned long size; + unsigned char *data; + + size = sec->data_allocated; + if (size == 0) + size = 1; + while (size < new_size) + size = size * 2; + data = tcc_realloc(sec->data, size); + memset(data + sec->data_allocated, 0, size - sec->data_allocated); + sec->data = data; + sec->data_allocated = size; +} + +/* reserve at least 'size' bytes in section 'sec' from + sec->data_offset. */ +ST_FUNC void *section_ptr_add(Section *sec, addr_t size) +{ + size_t offset, offset1; + + offset = sec->data_offset; + offset1 = offset + size; + if (offset1 > sec->data_allocated) + section_realloc(sec, offset1); + sec->data_offset = offset1; + return sec->data + offset; +} + +/* reserve at least 'size' bytes from section start */ +ST_FUNC void section_reserve(Section *sec, unsigned long size) +{ + if (size > sec->data_allocated) + section_realloc(sec, size); + if (size > sec->data_offset) + sec->data_offset = size; +} + +/* return a reference to a section, and create it if it does not + exists */ +ST_FUNC Section *find_section(TCCState *s1, const char *name) +{ + Section *sec; + int i; + for(i = 1; i < s1->nb_sections; i++) { + sec = s1->sections[i]; + if (!strcmp(name, sec->name)) + return sec; + } + /* sections are created as PROGBITS */ + return new_section(s1, name, SHT_PROGBITS, SHF_ALLOC); +} + +/* update sym->c so that it points to an external symbol in section + 'section' with value 'value' */ +ST_FUNC void put_extern_sym2(Sym *sym, Section *section, + addr_t value, unsigned long size, + int can_add_underscore) +{ + int sym_type, sym_bind, sh_num, info, other; + ElfW(Sym) *esym; + const char *name; + char buf1[256]; + +#ifdef CONFIG_TCC_BCHECK + char buf[32]; +#endif + + if (section == NULL) + sh_num = SHN_UNDEF; + else if (section == SECTION_ABS) + sh_num = SHN_ABS; + else + sh_num = section->sh_num; + + if ((sym->type.t & VT_BTYPE) == VT_FUNC) { + sym_type = STT_FUNC; + } else if ((sym->type.t & VT_BTYPE) == VT_VOID) { + sym_type = STT_NOTYPE; + } else { + sym_type = STT_OBJECT; + } + + if (sym->type.t & VT_STATIC) + sym_bind = STB_LOCAL; + else { + if (sym->type.t & VT_WEAK) + sym_bind = STB_WEAK; + else + sym_bind = STB_GLOBAL; + } + + if (!sym->c) { + name = get_tok_str(sym->v, NULL); +#ifdef CONFIG_TCC_BCHECK + if (tcc_state->do_bounds_check) { + /* XXX: avoid doing that for statics ? */ + /* if bound checking is activated, we change some function + names by adding the "__bound" prefix */ + switch(sym->v) { +#ifdef TCC_TARGET_PE + /* XXX: we rely only on malloc hooks */ + case TOK_malloc: + case TOK_free: + case TOK_realloc: + case TOK_memalign: + case TOK_calloc: +#endif + case TOK_memcpy: + case TOK_memmove: + case TOK_memset: + case TOK_strlen: + case TOK_strcpy: + case TOK_alloca: + strcpy(buf, "__bound_"); + strcat(buf, name); + name = buf; + break; + } + } +#endif + other = 0; + +#ifdef TCC_TARGET_PE + if (sym->type.t & VT_EXPORT) + other |= ST_PE_EXPORT; + if (sym_type == STT_FUNC && sym->type.ref) { + Sym *ref = sym->type.ref; + if (ref->a.func_export) + other |= ST_PE_EXPORT; + if (ref->a.func_call == FUNC_STDCALL && can_add_underscore) { + sprintf(buf1, "_%s@%d", name, ref->a.func_args * PTR_SIZE); + name = buf1; + other |= ST_PE_STDCALL; + can_add_underscore = 0; + } + } else { + if (find_elf_sym(tcc_state->dynsymtab_section, name)) + other |= ST_PE_IMPORT; + if (sym->type.t & VT_IMPORT) + other |= ST_PE_IMPORT; + } +#else + if (! (sym->type.t & VT_STATIC)) + other = (sym->type.t & VT_VIS_MASK) >> VT_VIS_SHIFT; +#endif + if (tcc_state->leading_underscore && can_add_underscore) { + buf1[0] = '_'; + pstrcpy(buf1 + 1, sizeof(buf1) - 1, name); + name = buf1; + } + if (sym->asm_label) { + name = get_tok_str(sym->asm_label, NULL); + } + info = ELFW(ST_INFO)(sym_bind, sym_type); + sym->c = add_elf_sym(symtab_section, value, size, info, other, sh_num, name); + } else { + esym = &((ElfW(Sym) *)symtab_section->data)[sym->c]; + esym->st_value = value; + esym->st_size = size; + esym->st_shndx = sh_num; + } +} + +ST_FUNC void put_extern_sym(Sym *sym, Section *section, + addr_t value, unsigned long size) +{ + put_extern_sym2(sym, section, value, size, 1); +} + +/* add a new relocation entry to symbol 'sym' in section 's' */ +ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, + addr_t addend) +{ + int c = 0; + if (sym) { + if (0 == sym->c) + put_extern_sym(sym, NULL, 0, 0); + c = sym->c; + } + /* now we can add ELF relocation info */ + put_elf_reloca(symtab_section, s, offset, type, c, addend); +} + +ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type) +{ + greloca(s, sym, offset, type, 0); +} + +/********************************************************/ + +static void strcat_vprintf(char *buf, int buf_size, const char *fmt, va_list ap) +{ + int len; + len = strlen(buf); + vsnprintf(buf + len, buf_size - len, fmt, ap); +} + +static void strcat_printf(char *buf, int buf_size, const char *fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + strcat_vprintf(buf, buf_size, fmt, ap); + va_end(ap); +} + +static void error1(TCCState *s1, int is_warning, const char *fmt, va_list ap) +{ + char buf[2048]; + BufferedFile **pf, *f; + + buf[0] = '\0'; + /* use upper file if inline ":asm:" or token ":paste:" */ + for (f = file; f && f->filename[0] == ':'; f = f->prev) + ; + if (f) { + for(pf = s1->include_stack; pf < s1->include_stack_ptr; pf++) + strcat_printf(buf, sizeof(buf), "In file included from %s:%d:\n", + (*pf)->filename, (*pf)->line_num); + if (f->line_num > 0) { + strcat_printf(buf, sizeof(buf), "%s:%d: ", + f->filename, f->line_num); + } else { + strcat_printf(buf, sizeof(buf), "%s: ", + f->filename); + } + } else { + strcat_printf(buf, sizeof(buf), "tcc: "); + } + if (is_warning) + strcat_printf(buf, sizeof(buf), "warning: "); + else + strcat_printf(buf, sizeof(buf), "error: "); + strcat_vprintf(buf, sizeof(buf), fmt, ap); + + if (!s1->error_func) { + /* default case: stderr */ + if (s1->ppfp) /* print a newline during tcc -E */ + fprintf(s1->ppfp, "\n"), fflush(s1->ppfp); + fprintf(stderr, "%s\n", buf); + fflush(stderr); /* print error/warning now (win32) */ + } else { + s1->error_func(s1->error_opaque, buf); + } + if (!is_warning || s1->warn_error) + s1->nb_errors++; +} + +LIBTCCAPI void tcc_set_error_func(TCCState *s, void *error_opaque, + void (*error_func)(void *opaque, const char *msg)) +{ + s->error_opaque = error_opaque; + s->error_func = error_func; +} + +/* error without aborting current compilation */ +PUB_FUNC void tcc_error_noabort(const char *fmt, ...) +{ + TCCState *s1 = tcc_state; + va_list ap; + + va_start(ap, fmt); + error1(s1, 0, fmt, ap); + va_end(ap); +} + +PUB_FUNC void tcc_error(const char *fmt, ...) +{ + TCCState *s1 = tcc_state; + va_list ap; + + va_start(ap, fmt); + error1(s1, 0, fmt, ap); + va_end(ap); + /* better than nothing: in some cases, we accept to handle errors */ + if (s1->error_set_jmp_enabled) { + longjmp(s1->error_jmp_buf, 1); + } else { + /* XXX: eliminate this someday */ + exit(1); + } +} + +PUB_FUNC void tcc_warning(const char *fmt, ...) +{ + TCCState *s1 = tcc_state; + va_list ap; + + if (s1->warn_none) + return; + + va_start(ap, fmt); + error1(s1, 1, fmt, ap); + va_end(ap); +} + +/********************************************************/ +/* I/O layer */ + +ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen) +{ + BufferedFile *bf; + int buflen = initlen ? initlen : IO_BUF_SIZE; + + bf = tcc_mallocz(sizeof(BufferedFile) + buflen); + bf->buf_ptr = bf->buffer; + bf->buf_end = bf->buffer + initlen; + bf->buf_end[0] = CH_EOB; /* put eob symbol */ + pstrcpy(bf->filename, sizeof(bf->filename), filename); +#ifdef _WIN32 + normalize_slashes(bf->filename); +#endif + bf->line_num = 1; + bf->ifdef_stack_ptr = s1->ifdef_stack_ptr; + bf->fd = -1; + bf->prev = file; + file = bf; +} + +ST_FUNC void tcc_close(void) +{ + BufferedFile *bf = file; + if (bf->fd > 0) { + close(bf->fd); + total_lines += bf->line_num; + } + file = bf->prev; + tcc_free(bf); +} + +ST_FUNC int tcc_open(TCCState *s1, const char *filename) +{ + int fd; + if (strcmp(filename, "-") == 0) + fd = 0, filename = ""; + else + fd = open(filename, O_RDONLY | O_BINARY); + if ((s1->verbose == 2 && fd >= 0) || s1->verbose == 3) + printf("%s %*s%s\n", fd < 0 ? "nf":"->", + (int)(s1->include_stack_ptr - s1->include_stack), "", filename); + if (fd < 0) + return -1; + + tcc_open_bf(s1, filename, 0); + file->fd = fd; + return fd; +} + +/* compile the C file opened in 'file'. Return non zero if errors. */ +static int tcc_compile(TCCState *s1) +{ + Sym *define_start; + char buf[512]; + volatile int section_sym; + +#ifdef INC_DEBUG + printf("%s: **** new file\n", file->filename); +#endif + preprocess_init(s1); + + cur_text_section = NULL; + funcname = ""; + anon_sym = SYM_FIRST_ANOM; + + /* file info: full path + filename */ + section_sym = 0; /* avoid warning */ + if (s1->do_debug) { + section_sym = put_elf_sym(symtab_section, 0, 0, + ELFW(ST_INFO)(STB_LOCAL, STT_SECTION), 0, + text_section->sh_num, NULL); + getcwd(buf, sizeof(buf)); +#ifdef _WIN32 + normalize_slashes(buf); +#endif + pstrcat(buf, sizeof(buf), "/"); + put_stabs_r(buf, N_SO, 0, 0, + text_section->data_offset, text_section, section_sym); + put_stabs_r(file->filename, N_SO, 0, 0, + text_section->data_offset, text_section, section_sym); + } + /* an elf symbol of type STT_FILE must be put so that STB_LOCAL + symbols can be safely used */ + put_elf_sym(symtab_section, 0, 0, + ELFW(ST_INFO)(STB_LOCAL, STT_FILE), 0, + SHN_ABS, file->filename); + + /* define some often used types */ + int_type.t = VT_INT; + + char_pointer_type.t = VT_BYTE; + mk_pointer(&char_pointer_type); + +#if PTR_SIZE == 4 + size_type.t = VT_INT; +#else + size_type.t = VT_LLONG; +#endif + + func_old_type.t = VT_FUNC; + func_old_type.ref = sym_push(SYM_FIELD, &int_type, FUNC_CDECL, FUNC_OLD); +#ifdef TCC_TARGET_ARM + arm_init(s1); +#endif + +#if 0 + /* define 'void *alloca(unsigned int)' builtin function */ + { + Sym *s1; + + p = anon_sym++; + sym = sym_push(p, mk_pointer(VT_VOID), FUNC_CDECL, FUNC_NEW); + s1 = sym_push(SYM_FIELD, VT_UNSIGNED | VT_INT, 0, 0); + s1->next = NULL; + sym->next = s1; + sym_push(TOK_alloca, VT_FUNC | (p << VT_STRUCT_SHIFT), VT_CONST, 0); + } +#endif + + define_start = define_stack; + nocode_wanted = 1; + + if (setjmp(s1->error_jmp_buf) == 0) { + s1->nb_errors = 0; + s1->error_set_jmp_enabled = 1; + + ch = file->buf_ptr[0]; + tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF; + parse_flags = PARSE_FLAG_PREPROCESS | PARSE_FLAG_TOK_NUM | PARSE_FLAG_TOK_STR; + next(); + decl(VT_CONST); + if (tok != TOK_EOF) + expect("declaration"); + check_vstack(); + + /* end of translation unit info */ + if (s1->do_debug) { + put_stabs_r(NULL, N_SO, 0, 0, + text_section->data_offset, text_section, section_sym); + } + } + + s1->error_set_jmp_enabled = 0; + + /* reset define stack, but leave -Dsymbols (may be incorrect if + they are undefined) */ + free_defines(define_start); + + gen_inline_functions(); + + sym_pop(&global_stack, NULL); + sym_pop(&local_stack, NULL); + + return s1->nb_errors != 0 ? -1 : 0; +} + +LIBTCCAPI int tcc_compile_string(TCCState *s, const char *str) +{ + int len, ret; + + len = strlen(str); + tcc_open_bf(s, "", len); + memcpy(file->buffer, str, len); + ret = tcc_compile(s); + tcc_close(); + return ret; +} + +/* define a preprocessor symbol. A value can also be provided with the '=' operator */ +LIBTCCAPI void tcc_define_symbol(TCCState *s1, const char *sym, const char *value) +{ + int len1, len2; + /* default value */ + if (!value) + value = "1"; + len1 = strlen(sym); + len2 = strlen(value); + + /* init file structure */ + tcc_open_bf(s1, "", len1 + len2 + 1); + memcpy(file->buffer, sym, len1); + file->buffer[len1] = ' '; + memcpy(file->buffer + len1 + 1, value, len2); + + /* parse with define parser */ + ch = file->buf_ptr[0]; + next_nomacro(); + parse_define(); + + tcc_close(); +} + +/* undefine a preprocessor symbol */ +LIBTCCAPI void tcc_undefine_symbol(TCCState *s1, const char *sym) +{ + TokenSym *ts; + Sym *s; + ts = tok_alloc(sym, strlen(sym)); + s = define_find(ts->tok); + /* undefine symbol by putting an invalid name */ + if (s) + define_undef(s); +} + +/* cleanup all static data used during compilation */ +static void tcc_cleanup(void) +{ + if (NULL == tcc_state) + return; + tcc_state = NULL; + + preprocess_delete(); + + /* free sym_pools */ + dynarray_reset(&sym_pools, &nb_sym_pools); + /* string buffer */ + cstr_free(&tokcstr); + /* reset symbol stack */ + sym_free_first = NULL; +} + +LIBTCCAPI TCCState *tcc_new(void) +{ + TCCState *s; + char buffer[100]; + int a,b,c; + + tcc_cleanup(); + + s = tcc_mallocz(sizeof(TCCState)); + if (!s) + return NULL; + tcc_state = s; +#ifdef _WIN32 + tcc_set_lib_path_w32(s); +#else + tcc_set_lib_path(s, CONFIG_TCCDIR); +#endif + s->output_type = 0; + preprocess_new(); + s->include_stack_ptr = s->include_stack; + + /* we add dummy defines for some special macros to speed up tests + and to have working defined() */ + define_push(TOK___LINE__, MACRO_OBJ, NULL, NULL); + define_push(TOK___FILE__, MACRO_OBJ, NULL, NULL); + define_push(TOK___DATE__, MACRO_OBJ, NULL, NULL); + define_push(TOK___TIME__, MACRO_OBJ, NULL, NULL); + + /* define __TINYC__ 92X */ + sscanf(TCC_VERSION, "%d.%d.%d", &a, &b, &c); + sprintf(buffer, "%d", a*10000 + b*100 + c); + tcc_define_symbol(s, "__TINYC__", buffer); + + /* standard defines */ + tcc_define_symbol(s, "__STDC__", NULL); + tcc_define_symbol(s, "__STDC_VERSION__", "199901L"); + tcc_define_symbol(s, "__STDC_HOSTED__", NULL); + + /* target defines */ +#if defined(TCC_TARGET_I386) + tcc_define_symbol(s, "__i386__", NULL); + tcc_define_symbol(s, "__i386", NULL); + tcc_define_symbol(s, "i386", NULL); +#elif defined(TCC_TARGET_X86_64) + tcc_define_symbol(s, "__x86_64__", NULL); +#elif defined(TCC_TARGET_ARM) + tcc_define_symbol(s, "__ARM_ARCH_4__", NULL); + tcc_define_symbol(s, "__arm_elf__", NULL); + tcc_define_symbol(s, "__arm_elf", NULL); + tcc_define_symbol(s, "arm_elf", NULL); + tcc_define_symbol(s, "__arm__", NULL); + tcc_define_symbol(s, "__arm", NULL); + tcc_define_symbol(s, "arm", NULL); + tcc_define_symbol(s, "__APCS_32__", NULL); + tcc_define_symbol(s, "__ARMEL__", NULL); +#if defined(TCC_ARM_EABI) + tcc_define_symbol(s, "__ARM_EABI__", NULL); +#endif +#if defined(TCC_ARM_HARDFLOAT) + s->float_abi = ARM_HARD_FLOAT; + tcc_define_symbol(s, "__ARM_PCS_VFP", NULL); +#else + s->float_abi = ARM_SOFTFP_FLOAT; +#endif +#elif defined(TCC_TARGET_ARM64) + tcc_define_symbol(s, "__aarch64__", NULL); +#endif + +#ifdef TCC_TARGET_PE + tcc_define_symbol(s, "_WIN32", NULL); +# ifdef TCC_TARGET_X86_64 + tcc_define_symbol(s, "_WIN64", NULL); +# endif +#else + tcc_define_symbol(s, "__unix__", NULL); + tcc_define_symbol(s, "__unix", NULL); + tcc_define_symbol(s, "unix", NULL); +# if defined(__linux) + tcc_define_symbol(s, "__linux__", NULL); + tcc_define_symbol(s, "__linux", NULL); +# endif +# if defined(__FreeBSD__) +# define str(s) #s + tcc_define_symbol(s, "__FreeBSD__", str( __FreeBSD__)); +# undef str +# endif +# if defined(__FreeBSD_kernel__) + tcc_define_symbol(s, "__FreeBSD_kernel__", NULL); +# endif +#endif +# if defined(__NetBSD__) +# define str(s) #s + tcc_define_symbol(s, "__NetBSD__", str( __NetBSD__)); +# undef str +# endif + + /* TinyCC & gcc defines */ +#if defined TCC_TARGET_PE && defined TCC_TARGET_X86_64 + tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long long"); + tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long long"); +#else + tcc_define_symbol(s, "__SIZE_TYPE__", "unsigned long"); + tcc_define_symbol(s, "__PTRDIFF_TYPE__", "long"); +#endif + +#ifdef TCC_TARGET_PE + tcc_define_symbol(s, "__WCHAR_TYPE__", "unsigned short"); + tcc_define_symbol(s, "__WINT_TYPE__", "unsigned short"); +#else + tcc_define_symbol(s, "__WCHAR_TYPE__", "int"); + /* wint_t is unsigned int by default, but (signed) int on BSDs + and unsigned short on windows. Other OSes might have still + other conventions, sigh. */ +#if defined(__FreeBSD__) || defined (__FreeBSD_kernel__) || defined(__NetBSD__) + tcc_define_symbol(s, "__WINT_TYPE__", "int"); +#else + tcc_define_symbol(s, "__WINT_TYPE__", "unsigned int"); +#endif +#endif + +#ifndef TCC_TARGET_PE + /* glibc defines */ + tcc_define_symbol(s, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)"); + tcc_define_symbol(s, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW"); + /* paths for crt objects */ + tcc_split_path(s, (void ***)&s->crt_paths, &s->nb_crt_paths, CONFIG_TCC_CRTPREFIX); +#endif + + /* no section zero */ + dynarray_add((void ***)&s->sections, &s->nb_sections, NULL); + + /* create standard sections */ + text_section = new_section(s, ".text", SHT_PROGBITS, SHF_ALLOC | SHF_EXECINSTR); + data_section = new_section(s, ".data", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE); + bss_section = new_section(s, ".bss", SHT_NOBITS, SHF_ALLOC | SHF_WRITE); + + /* symbols are always generated for linking stage */ + symtab_section = new_symtab(s, ".symtab", SHT_SYMTAB, 0, + ".strtab", + ".hashtab", SHF_PRIVATE); + strtab_section = symtab_section->link; + s->symtab = symtab_section; + + /* private symbol table for dynamic symbols */ + s->dynsymtab_section = new_symtab(s, ".dynsymtab", SHT_SYMTAB, SHF_PRIVATE, + ".dynstrtab", + ".dynhashtab", SHF_PRIVATE); + s->alacarte_link = 1; + s->nocommon = 1; + s->warn_implicit_function_declaration = 1; + +#ifdef CHAR_IS_UNSIGNED + s->char_is_unsigned = 1; +#endif + /* enable this if you want symbols with leading underscore on windows: */ +#if 0 /* def TCC_TARGET_PE */ + s->leading_underscore = 1; +#endif +#ifdef TCC_TARGET_I386 + s->seg_size = 32; +#endif +#ifdef TCC_IS_NATIVE + s->runtime_main = "main"; +#endif + return s; +} + +LIBTCCAPI void tcc_delete(TCCState *s1) +{ + int i; + int bench = s1->do_bench; + + tcc_cleanup(); + + /* close a preprocessor output */ + if (s1->ppfp && s1->ppfp != stdout) + fclose(s1->ppfp); + + /* free all sections */ + for(i = 1; i < s1->nb_sections; i++) + free_section(s1->sections[i]); + dynarray_reset(&s1->sections, &s1->nb_sections); + + for(i = 0; i < s1->nb_priv_sections; i++) + free_section(s1->priv_sections[i]); + dynarray_reset(&s1->priv_sections, &s1->nb_priv_sections); + + /* free any loaded DLLs */ +#ifdef TCC_IS_NATIVE + for ( i = 0; i < s1->nb_loaded_dlls; i++) { + DLLReference *ref = s1->loaded_dlls[i]; + if ( ref->handle ) + dlclose(ref->handle); + } +#endif + + /* free loaded dlls array */ + dynarray_reset(&s1->loaded_dlls, &s1->nb_loaded_dlls); + + /* free library paths */ + dynarray_reset(&s1->library_paths, &s1->nb_library_paths); + dynarray_reset(&s1->crt_paths, &s1->nb_crt_paths); + + /* free include paths */ + dynarray_reset(&s1->cached_includes, &s1->nb_cached_includes); + dynarray_reset(&s1->include_paths, &s1->nb_include_paths); + dynarray_reset(&s1->sysinclude_paths, &s1->nb_sysinclude_paths); + + tcc_free(s1->tcc_lib_path); + tcc_free(s1->soname); + tcc_free(s1->rpath); + tcc_free(s1->init_symbol); + tcc_free(s1->fini_symbol); + tcc_free(s1->outfile); + tcc_free(s1->deps_outfile); + dynarray_reset(&s1->files, &s1->nb_files); + dynarray_reset(&s1->target_deps, &s1->nb_target_deps); + dynarray_reset(&s1->pragma_libs, &s1->nb_pragma_libs); + +#ifdef TCC_IS_NATIVE +# ifdef HAVE_SELINUX + munmap (s1->write_mem, s1->mem_size); + munmap (s1->runtime_mem, s1->mem_size); +# else + tcc_free(s1->runtime_mem); +# endif +#endif + + tcc_free(s1->sym_attrs); + tcc_free(s1); + tcc_memstats(bench); +} + +LIBTCCAPI int tcc_add_include_path(TCCState *s, const char *pathname) +{ + tcc_split_path(s, (void ***)&s->include_paths, &s->nb_include_paths, pathname); + return 0; +} + +LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname) +{ + tcc_split_path(s, (void ***)&s->sysinclude_paths, &s->nb_sysinclude_paths, pathname); + return 0; +} + +ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags, int filetype) +{ + ElfW(Ehdr) ehdr; + int fd, ret, size; + + parse_flags = 0; +#ifdef CONFIG_TCC_ASM + /* if .S file, define __ASSEMBLER__ like gcc does */ + if ((filetype == TCC_FILETYPE_ASM) || (filetype == TCC_FILETYPE_ASM_PP)) { + tcc_define_symbol(s1, "__ASSEMBLER__", NULL); + parse_flags = PARSE_FLAG_ASM_FILE; + } +#endif + + /* open the file */ + ret = tcc_open(s1, filename); + if (ret < 0) { + if (flags & AFF_PRINT_ERROR) + tcc_error_noabort("file '%s' not found", filename); + return ret; + } + + /* update target deps */ + dynarray_add((void ***)&s1->target_deps, &s1->nb_target_deps, + tcc_strdup(filename)); + + if (flags & AFF_PREPROCESS) { + ret = tcc_preprocess(s1); + goto the_end; + } + + if (filetype == TCC_FILETYPE_C) { + /* C file assumed */ + ret = tcc_compile(s1); + goto the_end; + } + +#ifdef CONFIG_TCC_ASM + if (filetype == TCC_FILETYPE_ASM_PP) { + /* non preprocessed assembler */ + ret = tcc_assemble(s1, 1); + goto the_end; + } + + if (filetype == TCC_FILETYPE_ASM) { + /* preprocessed assembler */ + ret = tcc_assemble(s1, 0); + goto the_end; + } +#endif + + fd = file->fd; + /* assume executable format: auto guess file type */ + size = read(fd, &ehdr, sizeof(ehdr)); + lseek(fd, 0, SEEK_SET); + if (size <= 0) { + tcc_error_noabort("could not read header"); + goto the_end; + } + + if (size == sizeof(ehdr) && + ehdr.e_ident[0] == ELFMAG0 && + ehdr.e_ident[1] == ELFMAG1 && + ehdr.e_ident[2] == ELFMAG2 && + ehdr.e_ident[3] == ELFMAG3) { + + /* do not display line number if error */ + file->line_num = 0; + if (ehdr.e_type == ET_REL) { + ret = tcc_load_object_file(s1, fd, 0); + goto the_end; + + } +#ifndef TCC_TARGET_PE + if (ehdr.e_type == ET_DYN) { + if (s1->output_type == TCC_OUTPUT_MEMORY) { +#ifdef TCC_IS_NATIVE + void *h; + h = dlopen(filename, RTLD_GLOBAL | RTLD_LAZY); + if (h) +#endif + ret = 0; + } else { + ret = tcc_load_dll(s1, fd, filename, + (flags & AFF_REFERENCED_DLL) != 0); + } + goto the_end; + } +#endif + tcc_error_noabort("unrecognized ELF file"); + goto the_end; + } + + if (memcmp((char *)&ehdr, ARMAG, 8) == 0) { + file->line_num = 0; /* do not display line number if error */ + ret = tcc_load_archive(s1, fd); + goto the_end; + } + +#ifdef TCC_TARGET_COFF + if (*(uint16_t *)(&ehdr) == COFF_C67_MAGIC) { + ret = tcc_load_coff(s1, fd); + goto the_end; + } +#endif + +#ifdef TCC_TARGET_PE + ret = pe_load_file(s1, filename, fd); +#else + /* as GNU ld, consider it is an ld script if not recognized */ + ret = tcc_load_ldscript(s1); +#endif + if (ret < 0) + tcc_error_noabort("unrecognized file type"); + +the_end: + tcc_close(); + return ret; +} + +LIBTCCAPI int tcc_add_file(TCCState *s, const char *filename, int filetype) +{ + if (s->output_type == TCC_OUTPUT_PREPROCESS) + return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR | AFF_PREPROCESS, filetype); + else + return tcc_add_file_internal(s, filename, AFF_PRINT_ERROR, filetype); +} + +LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname) +{ + tcc_split_path(s, (void ***)&s->library_paths, &s->nb_library_paths, pathname); + return 0; +} + +static int tcc_add_library_internal(TCCState *s, const char *fmt, + const char *filename, int flags, char **paths, int nb_paths) +{ + char buf[1024]; + int i; + + for(i = 0; i < nb_paths; i++) { + snprintf(buf, sizeof(buf), fmt, paths[i], filename); + if (tcc_add_file_internal(s, buf, flags, TCC_FILETYPE_BINARY) == 0) + return 0; + } + return -1; +} + +#ifndef TCC_TARGET_PE +/* find and load a dll. Return non zero if not found */ +/* XXX: add '-rpath' option support ? */ +ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags) +{ + return tcc_add_library_internal(s, "%s/%s", filename, flags, + s->library_paths, s->nb_library_paths); +} +#endif + +ST_FUNC int tcc_add_crt(TCCState *s, const char *filename) +{ + if (-1 == tcc_add_library_internal(s, "%s/%s", + filename, 0, s->crt_paths, s->nb_crt_paths)) + tcc_error_noabort("file '%s' not found", filename); + return 0; +} + +/* the library name is the same as the argument of the '-l' option */ +LIBTCCAPI int tcc_add_library(TCCState *s, const char *libraryname) +{ +#ifdef TCC_TARGET_PE + const char *libs[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL }; + const char **pp = s->static_link ? libs + 4 : libs; +#else + const char *libs[] = { "%s/lib%s.so", "%s/lib%s.a", NULL }; + const char **pp = s->static_link ? libs + 1 : libs; +#endif + while (*pp) { + if (0 == tcc_add_library_internal(s, *pp, + libraryname, 0, s->library_paths, s->nb_library_paths)) + return 0; + ++pp; + } + return -1; +} + +PUB_FUNC int tcc_add_library_err(TCCState *s, const char *libname) +{ + int ret = tcc_add_library(s, libname); + if (ret < 0) + tcc_error_noabort("cannot find library 'lib%s'", libname); + return ret; +} + +/* habdle #pragma comment(lib,) */ +ST_FUNC void tcc_add_pragma_libs(TCCState *s1) +{ + int i; + for (i = 0; i < s1->nb_pragma_libs; i++) + tcc_add_library_err(s1, s1->pragma_libs[i]); +} + +LIBTCCAPI int tcc_add_symbol(TCCState *s, const char *name, const void *val) +{ +#ifdef TCC_TARGET_PE + /* On x86_64 'val' might not be reachable with a 32bit offset. + So it is handled here as if it were in a DLL. */ + pe_putimport(s, 0, name, (uintptr_t)val); +#else + add_elf_sym(symtab_section, (uintptr_t)val, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + SHN_ABS, name); +#endif + return 0; +} + +LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type) +{ + s->output_type = output_type; + + if (!s->nostdinc) { + /* default include paths */ + /* -isystem paths have already been handled */ + tcc_add_sysinclude_path(s, CONFIG_TCC_SYSINCLUDEPATHS); + } + + /* if bound checking, then add corresponding sections */ +#ifdef CONFIG_TCC_BCHECK + if (s->do_bounds_check) { + /* define symbol */ + tcc_define_symbol(s, "__BOUNDS_CHECKING_ON", NULL); + /* create bounds sections */ + bounds_section = new_section(s, ".bounds", + SHT_PROGBITS, SHF_ALLOC); + lbounds_section = new_section(s, ".lbounds", + SHT_PROGBITS, SHF_ALLOC); + } +#endif + + if (s->char_is_unsigned) { + tcc_define_symbol(s, "__CHAR_UNSIGNED__", NULL); + } + + /* add debug sections */ + if (s->do_debug) { + /* stab symbols */ + stab_section = new_section(s, ".stab", SHT_PROGBITS, 0); + stab_section->sh_entsize = sizeof(Stab_Sym); + stabstr_section = new_section(s, ".stabstr", SHT_STRTAB, 0); + put_elf_str(stabstr_section, ""); + stab_section->link = stabstr_section; + /* put first entry */ + put_stabs("", 0, 0, 0, 0); + } + + tcc_add_library_path(s, CONFIG_TCC_LIBPATHS); +#ifdef TCC_TARGET_PE +# ifdef _WIN32 + tcc_add_systemdir(s); +# endif +#else + /* add libc crt1/crti objects */ + if ((output_type == TCC_OUTPUT_EXE || output_type == TCC_OUTPUT_DLL) && + !s->nostdlib) { + if (output_type != TCC_OUTPUT_DLL) + tcc_add_crt(s, "crt1.o"); + tcc_add_crt(s, "crti.o"); + } +#endif + +#ifdef CONFIG_TCC_BCHECK + if (s->do_bounds_check && (output_type == TCC_OUTPUT_EXE)) + { + /* force a bcheck.o linking */ + addr_t func = TOK___bound_init; + Sym *sym = external_global_sym(func, &func_old_type, 0); + if (!sym->c) + put_extern_sym(sym, NULL, 0, 0); + } +#endif + + if (s->output_type == TCC_OUTPUT_PREPROCESS) + print_defines(); + + return 0; +} + +LIBTCCAPI void tcc_set_lib_path(TCCState *s, const char *path) +{ + tcc_free(s->tcc_lib_path); + s->tcc_lib_path = tcc_strdup(path); +} + +#define WD_ALL 0x0001 /* warning is activated when using -Wall */ +#define FD_INVERT 0x0002 /* invert value before storing */ + +typedef struct FlagDef { + uint16_t offset; + uint16_t flags; + const char *name; +} FlagDef; + +static const FlagDef warning_defs[] = { + { offsetof(TCCState, warn_unsupported), 0, "unsupported" }, + { offsetof(TCCState, warn_write_strings), 0, "write-strings" }, + { offsetof(TCCState, warn_error), 0, "error" }, + { offsetof(TCCState, warn_implicit_function_declaration), WD_ALL, + "implicit-function-declaration" }, +}; + +ST_FUNC int set_flag(TCCState *s, const FlagDef *flags, int nb_flags, + const char *name, int value) +{ + int i; + const FlagDef *p; + const char *r; + + r = name; + if (r[0] == 'n' && r[1] == 'o' && r[2] == '-') { + r += 3; + value = !value; + } + for(i = 0, p = flags; i < nb_flags; i++, p++) { + if (!strcmp(r, p->name)) + goto found; + } + return -1; + found: + if (p->flags & FD_INVERT) + value = !value; + *(int *)((uint8_t *)s + p->offset) = value; + return 0; +} + +/* set/reset a warning */ +static int tcc_set_warning(TCCState *s, const char *warning_name, int value) +{ + int i; + const FlagDef *p; + + if (!strcmp(warning_name, "all")) { + for(i = 0, p = warning_defs; i < countof(warning_defs); i++, p++) { + if (p->flags & WD_ALL) + *(int *)((uint8_t *)s + p->offset) = 1; + } + return 0; + } else { + return set_flag(s, warning_defs, countof(warning_defs), + warning_name, value); + } +} + +static const FlagDef flag_defs[] = { + { offsetof(TCCState, char_is_unsigned), 0, "unsigned-char" }, + { offsetof(TCCState, char_is_unsigned), FD_INVERT, "signed-char" }, + { offsetof(TCCState, nocommon), FD_INVERT, "common" }, + { offsetof(TCCState, leading_underscore), 0, "leading-underscore" }, + { offsetof(TCCState, ms_extensions), 0, "ms-extensions" }, + { offsetof(TCCState, old_struct_init_code), 0, "old-struct-init-code" }, + { offsetof(TCCState, dollars_in_identifiers), 0, "dollars-in-identifiers" }, +}; + +/* set/reset a flag */ +static int tcc_set_flag(TCCState *s, const char *flag_name, int value) +{ + return set_flag(s, flag_defs, countof(flag_defs), + flag_name, value); +} + + +static int strstart(const char *val, const char **str) +{ + const char *p, *q; + p = *str; + q = val; + while (*q) { + if (*p != *q) + return 0; + p++; + q++; + } + *str = p; + return 1; +} + +/* Like strstart, but automatically takes into account that ld options can + * + * - start with double or single dash (e.g. '--soname' or '-soname') + * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so' + * or '-Wl,-soname=x.so') + * + * you provide `val` always in 'option[=]' form (no leading -) + */ +static int link_option(const char *str, const char *val, const char **ptr) +{ + const char *p, *q; + + /* there should be 1 or 2 dashes */ + if (*str++ != '-') + return 0; + if (*str == '-') + str++; + + /* then str & val should match (potentialy up to '=') */ + p = str; + q = val; + + while (*q != '\0' && *q != '=') { + if (*p != *q) + return 0; + p++; + q++; + } + + /* '=' near eos means ',' or '=' is ok */ + if (*q == '=') { + if (*p != ',' && *p != '=') + return 0; + p++; + q++; + } + + if (ptr) + *ptr = p; + return 1; +} + +static const char *skip_linker_arg(const char **str) +{ + const char *s1 = *str; + const char *s2 = strchr(s1, ','); + *str = s2 ? s2++ : (s2 = s1 + strlen(s1)); + return s2; +} + +static char *copy_linker_arg(const char *p) +{ + const char *q = p; + skip_linker_arg(&q); + return pstrncpy(tcc_malloc(q - p + 1), p, q - p); +} + +/* set linker options */ +static int tcc_set_linker(TCCState *s, const char *option) +{ + while (option && *option) { + + const char *p = option; + char *end = NULL; + int ignoring = 0; + + if (link_option(option, "Bsymbolic", &p)) { + s->symbolic = 1; + } else if (link_option(option, "nostdlib", &p)) { + s->nostdlib = 1; + } else if (link_option(option, "fini=", &p)) { + s->fini_symbol = copy_linker_arg(p); + ignoring = 1; + } else if (link_option(option, "image-base=", &p) + || link_option(option, "Ttext=", &p)) { + s->text_addr = strtoull(p, &end, 16); + s->has_text_addr = 1; + } else if (link_option(option, "init=", &p)) { + s->init_symbol = copy_linker_arg(p); + ignoring = 1; + } else if (link_option(option, "oformat=", &p)) { +#if defined(TCC_TARGET_PE) + if (strstart("pe-", &p)) { +#elif defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + if (strstart("elf64-", &p)) { +#else + if (strstart("elf32-", &p)) { +#endif + s->output_format = TCC_OUTPUT_FORMAT_ELF; + } else if (!strcmp(p, "binary")) { + s->output_format = TCC_OUTPUT_FORMAT_BINARY; +#ifdef TCC_TARGET_COFF + } else if (!strcmp(p, "coff")) { + s->output_format = TCC_OUTPUT_FORMAT_COFF; +#endif + } else + goto err; + + } else if (link_option(option, "as-needed", &p)) { + ignoring = 1; + } else if (link_option(option, "O", &p)) { + ignoring = 1; + } else if (link_option(option, "rpath=", &p)) { + s->rpath = copy_linker_arg(p); + } else if (link_option(option, "section-alignment=", &p)) { + s->section_align = strtoul(p, &end, 16); + } else if (link_option(option, "soname=", &p)) { + s->soname = copy_linker_arg(p); +#ifdef TCC_TARGET_PE + } else if (link_option(option, "file-alignment=", &p)) { + s->pe_file_align = strtoul(p, &end, 16); + } else if (link_option(option, "stack=", &p)) { + s->pe_stack_size = strtoul(p, &end, 10); + } else if (link_option(option, "subsystem=", &p)) { +#if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64) + if (!strcmp(p, "native")) { + s->pe_subsystem = 1; + } else if (!strcmp(p, "console")) { + s->pe_subsystem = 3; + } else if (!strcmp(p, "gui")) { + s->pe_subsystem = 2; + } else if (!strcmp(p, "posix")) { + s->pe_subsystem = 7; + } else if (!strcmp(p, "efiapp")) { + s->pe_subsystem = 10; + } else if (!strcmp(p, "efiboot")) { + s->pe_subsystem = 11; + } else if (!strcmp(p, "efiruntime")) { + s->pe_subsystem = 12; + } else if (!strcmp(p, "efirom")) { + s->pe_subsystem = 13; +#elif defined(TCC_TARGET_ARM) + if (!strcmp(p, "wince")) { + s->pe_subsystem = 9; +#endif + } else + goto err; +#endif + } else + goto err; + + if (ignoring && s->warn_unsupported) err: { + char buf[100], *e; + pstrcpy(buf, sizeof buf, e = copy_linker_arg(option)), tcc_free(e); + if (ignoring) + tcc_warning("unsupported linker option '%s'", buf); + else + tcc_error("unsupported linker option '%s'", buf); + } + option = skip_linker_arg(&p); + } + return 0; +} + +typedef struct TCCOption { + const char *name; + uint16_t index; + uint16_t flags; +} TCCOption; + +enum { + TCC_OPTION_HELP, + TCC_OPTION_I, + TCC_OPTION_D, + TCC_OPTION_U, + TCC_OPTION_P, + TCC_OPTION_L, + TCC_OPTION_B, + TCC_OPTION_l, + TCC_OPTION_bench, + TCC_OPTION_bt, + TCC_OPTION_b, + TCC_OPTION_g, + TCC_OPTION_c, + TCC_OPTION_dumpversion, + TCC_OPTION_d, + TCC_OPTION_float_abi, + TCC_OPTION_static, + TCC_OPTION_std, + TCC_OPTION_shared, + TCC_OPTION_soname, + TCC_OPTION_o, + TCC_OPTION_r, + TCC_OPTION_s, + TCC_OPTION_traditional, + TCC_OPTION_Wl, + TCC_OPTION_W, + TCC_OPTION_O, + TCC_OPTION_m, + TCC_OPTION_f, + TCC_OPTION_isystem, + TCC_OPTION_iwithprefix, + TCC_OPTION_nostdinc, + TCC_OPTION_nostdlib, + TCC_OPTION_print_search_dirs, + TCC_OPTION_rdynamic, + TCC_OPTION_pedantic, + TCC_OPTION_pthread, + TCC_OPTION_run, + TCC_OPTION_v, + TCC_OPTION_w, + TCC_OPTION_pipe, + TCC_OPTION_E, + TCC_OPTION_MD, + TCC_OPTION_MF, + TCC_OPTION_x +}; + +#define TCC_OPTION_HAS_ARG 0x0001 +#define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */ + +static const TCCOption tcc_options[] = { + { "h", TCC_OPTION_HELP, 0 }, + { "-help", TCC_OPTION_HELP, 0 }, + { "?", TCC_OPTION_HELP, 0 }, + { "I", TCC_OPTION_I, TCC_OPTION_HAS_ARG }, + { "D", TCC_OPTION_D, TCC_OPTION_HAS_ARG }, + { "U", TCC_OPTION_U, TCC_OPTION_HAS_ARG }, + { "P", TCC_OPTION_P, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "L", TCC_OPTION_L, TCC_OPTION_HAS_ARG }, + { "B", TCC_OPTION_B, TCC_OPTION_HAS_ARG }, + { "l", TCC_OPTION_l, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "bench", TCC_OPTION_bench, 0 }, +#ifdef CONFIG_TCC_BACKTRACE + { "bt", TCC_OPTION_bt, TCC_OPTION_HAS_ARG }, +#endif +#ifdef CONFIG_TCC_BCHECK + { "b", TCC_OPTION_b, 0 }, +#endif + { "g", TCC_OPTION_g, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "c", TCC_OPTION_c, 0 }, + { "dumpversion", TCC_OPTION_dumpversion, 0}, + { "d", TCC_OPTION_d, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, +#ifdef TCC_TARGET_ARM + { "mfloat-abi", TCC_OPTION_float_abi, TCC_OPTION_HAS_ARG }, +#endif + { "static", TCC_OPTION_static, 0 }, + { "std", TCC_OPTION_std, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "shared", TCC_OPTION_shared, 0 }, + { "soname", TCC_OPTION_soname, TCC_OPTION_HAS_ARG }, + { "o", TCC_OPTION_o, TCC_OPTION_HAS_ARG }, + { "pedantic", TCC_OPTION_pedantic, 0}, + { "pthread", TCC_OPTION_pthread, 0}, + { "run", TCC_OPTION_run, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "rdynamic", TCC_OPTION_rdynamic, 0 }, + { "r", TCC_OPTION_r, 0 }, + { "s", TCC_OPTION_s, 0 }, + { "traditional", TCC_OPTION_traditional, 0 }, + { "Wl,", TCC_OPTION_Wl, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "W", TCC_OPTION_W, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "O", TCC_OPTION_O, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "m", TCC_OPTION_m, TCC_OPTION_HAS_ARG }, + { "f", TCC_OPTION_f, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "isystem", TCC_OPTION_isystem, TCC_OPTION_HAS_ARG }, + { "iwithprefix", TCC_OPTION_iwithprefix, TCC_OPTION_HAS_ARG }, + { "nostdinc", TCC_OPTION_nostdinc, 0 }, + { "nostdlib", TCC_OPTION_nostdlib, 0 }, + { "print-search-dirs", TCC_OPTION_print_search_dirs, 0 }, + { "v", TCC_OPTION_v, TCC_OPTION_HAS_ARG | TCC_OPTION_NOSEP }, + { "w", TCC_OPTION_w, 0 }, + { "pipe", TCC_OPTION_pipe, 0}, + { "E", TCC_OPTION_E, 0}, + { "MD", TCC_OPTION_MD, 0}, + { "MF", TCC_OPTION_MF, TCC_OPTION_HAS_ARG }, + { "x", TCC_OPTION_x, TCC_OPTION_HAS_ARG }, + { NULL, 0, 0 }, +}; + +static void parse_option_D(TCCState *s1, const char *optarg) +{ + char *sym = tcc_strdup(optarg); + char *value = strchr(sym, '='); + if (value) + *value++ = '\0'; + tcc_define_symbol(s1, sym, value); + tcc_free(sym); +} + +static void args_parser_add_file(TCCState *s, const char* filename, int filetype) +{ + int len = strlen(filename); + char *p = tcc_malloc(len + 2); + if (filetype) { + *p = filetype; + } + else { + /* use a file extension to detect a filetype */ + const char *ext = tcc_fileextension(filename); + if (ext[0]) { + ext++; + if (!strcmp(ext, "S")) + *p = TCC_FILETYPE_ASM_PP; + else + if (!strcmp(ext, "s")) + *p = TCC_FILETYPE_ASM; + else + if (!PATHCMP(ext, "c") || !PATHCMP(ext, "i")) + *p = TCC_FILETYPE_C; + else + *p = TCC_FILETYPE_BINARY; + } + else { + *p = TCC_FILETYPE_C; + } + } + strcpy(p+1, filename); + dynarray_add((void ***)&s->files, &s->nb_files, p); +} + +PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv) +{ + const TCCOption *popt; + const char *optarg, *r; + int run = 0; + int pthread = 0; + int optind = 0; + int filetype = 0; + + /* collect -Wl options for input such as "-Wl,-rpath -Wl," */ + CString linker_arg; + cstr_new(&linker_arg); + + while (optind < argc) { + + r = argv[optind++]; + if (r[0] != '-' || r[1] == '\0') { + args_parser_add_file(s, r, filetype); + if (run) { + optind--; + /* argv[0] will be this file */ + break; + } + continue; + } + + /* find option in table */ + for(popt = tcc_options; ; ++popt) { + const char *p1 = popt->name; + const char *r1 = r + 1; + if (p1 == NULL) + tcc_error("invalid option -- '%s'", r); + if (!strstart(p1, &r1)) + continue; + optarg = r1; + if (popt->flags & TCC_OPTION_HAS_ARG) { + if (*r1 == '\0' && !(popt->flags & TCC_OPTION_NOSEP)) { + if (optind >= argc) + tcc_error("argument to '%s' is missing", r); + optarg = argv[optind++]; + } + } else if (*r1 != '\0') + continue; + break; + } + + switch(popt->index) { + case TCC_OPTION_HELP: + return 0; + case TCC_OPTION_I: + tcc_add_include_path(s, optarg); + break; + case TCC_OPTION_D: + parse_option_D(s, optarg); + break; + case TCC_OPTION_U: + tcc_undefine_symbol(s, optarg); + break; + case TCC_OPTION_L: + tcc_add_library_path(s, optarg); + break; + case TCC_OPTION_B: + /* set tcc utilities path (mainly for tcc development) */ + tcc_set_lib_path(s, optarg); + break; + case TCC_OPTION_l: + args_parser_add_file(s, r, TCC_FILETYPE_BINARY); + s->nb_libraries++; + break; + case TCC_OPTION_pthread: + parse_option_D(s, "_REENTRANT"); + pthread = 1; + break; + case TCC_OPTION_bench: + s->do_bench = 1; + break; +#ifdef CONFIG_TCC_BACKTRACE + case TCC_OPTION_bt: + tcc_set_num_callers(atoi(optarg)); + break; +#endif +#ifdef CONFIG_TCC_BCHECK + case TCC_OPTION_b: + s->do_bounds_check = 1; + s->do_debug = 1; + break; +#endif + case TCC_OPTION_g: + s->do_debug = 1; + break; + case TCC_OPTION_c: + if (s->output_type) + tcc_warning("-c: some compiler action already specified (%d)", s->output_type); + s->output_type = TCC_OUTPUT_OBJ; + break; + case TCC_OPTION_d: + if (*optarg == 'D') + s->dflag = 1; + else { + if (s->warn_unsupported) + goto unsupported_option; + tcc_error("invalid option -- '%s'", r); + } + break; +#ifdef TCC_TARGET_ARM + case TCC_OPTION_float_abi: + /* tcc doesn't support soft float yet */ + if (!strcmp(optarg, "softfp")) { + s->float_abi = ARM_SOFTFP_FLOAT; + tcc_undefine_symbol(s, "__ARM_PCS_VFP"); + } else if (!strcmp(optarg, "hard")) + s->float_abi = ARM_HARD_FLOAT; + else + tcc_error("unsupported float abi '%s'", optarg); + break; +#endif + case TCC_OPTION_static: + s->static_link = 1; + break; + case TCC_OPTION_std: + /* silently ignore, a current purpose: + allow to use a tcc as a reference compiler for "make test" */ + break; + case TCC_OPTION_shared: + if (s->output_type) + tcc_warning("-shared: some compiler action already specified (%d)", s->output_type); + s->output_type = TCC_OUTPUT_DLL; + break; + case TCC_OPTION_soname: + s->soname = tcc_strdup(optarg); + break; + case TCC_OPTION_m: + s->option_m = tcc_strdup(optarg); + break; + case TCC_OPTION_o: + if (s->outfile) { + tcc_warning("multiple -o option"); + tcc_free(s->outfile); + } + s->outfile = tcc_strdup(optarg); + break; + case TCC_OPTION_r: + /* generate a .o merging several output files */ + if (s->output_type) + tcc_warning("-r: some compiler action already specified (%d)", s->output_type); + s->option_r = 1; + s->output_type = TCC_OUTPUT_OBJ; + break; + case TCC_OPTION_isystem: + tcc_add_sysinclude_path(s, optarg); + break; + case TCC_OPTION_iwithprefix: + if (1) { + char buf[1024]; + int buf_size = sizeof(buf)-1; + char *p = &buf[0]; + + char *sysroot = "{B}/"; + int len = strlen(sysroot); + if (len > buf_size) + len = buf_size; + strncpy(p, sysroot, len); + p += len; + buf_size -= len; + + len = strlen(optarg); + if (len > buf_size) + len = buf_size; + strncpy(p, optarg, len+1); + tcc_add_sysinclude_path(s, buf); + } + break; + case TCC_OPTION_nostdinc: + s->nostdinc = 1; + break; + case TCC_OPTION_nostdlib: + s->nostdlib = 1; + break; + case TCC_OPTION_print_search_dirs: + s->print_search_dirs = 1; + break; + case TCC_OPTION_run: + if (s->output_type) + tcc_warning("-run: some compiler action already specified (%d)", s->output_type); + s->output_type = TCC_OUTPUT_MEMORY; + tcc_set_options(s, optarg); + run = 1; + break; + case TCC_OPTION_v: + do ++s->verbose; while (*optarg++ == 'v'); + break; + case TCC_OPTION_f: + if (tcc_set_flag(s, optarg, 1) < 0 && s->warn_unsupported) + goto unsupported_option; + break; + case TCC_OPTION_W: + if (tcc_set_warning(s, optarg, 1) < 0 && + s->warn_unsupported) + goto unsupported_option; + break; + case TCC_OPTION_w: + s->warn_none = 1; + break; + case TCC_OPTION_rdynamic: + s->rdynamic = 1; + break; + case TCC_OPTION_Wl: + if (linker_arg.size) + --linker_arg.size, cstr_ccat(&linker_arg, ','); + cstr_cat(&linker_arg, optarg); + cstr_ccat(&linker_arg, '\0'); + break; + case TCC_OPTION_E: + if (s->output_type) + tcc_warning("-E: some compiler action already specified (%d)", s->output_type); + s->output_type = TCC_OUTPUT_PREPROCESS; + break; + case TCC_OPTION_P: + s->Pflag = atoi(optarg) + 1; + break; + case TCC_OPTION_MD: + s->gen_deps = 1; + break; + case TCC_OPTION_MF: + s->deps_outfile = tcc_strdup(optarg); + break; + case TCC_OPTION_dumpversion: + printf ("%s\n", TCC_VERSION); + exit(0); + case TCC_OPTION_s: + s->do_strip = 1; + break; + case TCC_OPTION_traditional: + break; + case TCC_OPTION_x: + if (*optarg == 'c') + filetype = TCC_FILETYPE_C; + else + if (*optarg == 'a') + filetype = TCC_FILETYPE_ASM_PP; + else + if (*optarg == 'n') + filetype = 0; + else + tcc_warning("unsupported language '%s'", optarg); + break; + case TCC_OPTION_O: + if (1) { + int opt = atoi(optarg); + char *sym = "__OPTIMIZE__"; + if (opt) + tcc_define_symbol(s, sym, 0); + else + tcc_undefine_symbol(s, sym); + } + break; + case TCC_OPTION_pedantic: + case TCC_OPTION_pipe: + /* ignored */ + break; + default: + if (s->warn_unsupported) { + unsupported_option: + tcc_warning("unsupported option '%s'", r); + } + break; + } + } + + if (s->output_type == 0) + s->output_type = TCC_OUTPUT_EXE; + + if (pthread && s->output_type != TCC_OUTPUT_OBJ) + tcc_set_options(s, "-lpthread"); + + if (s->output_type == TCC_OUTPUT_EXE) + tcc_set_linker(s, (const char *)linker_arg.data); + cstr_free(&linker_arg); + + return optind; +} + +LIBTCCAPI int tcc_set_options(TCCState *s, const char *str) +{ + const char *s1; + char **argv, *arg; + int argc, len; + int ret; + + argc = 0, argv = NULL; + for(;;) { + while (is_space(*str)) + str++; + if (*str == '\0') + break; + s1 = str; + while (*str != '\0' && !is_space(*str)) + str++; + len = str - s1; + arg = tcc_malloc(len + 1); + pstrncpy(arg, s1, len); + dynarray_add((void ***)&argv, &argc, arg); + } + ret = tcc_parse_args(s, argc, argv); + dynarray_reset(&argv, &argc); + return ret; +} + +PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time) +{ + double tt; + tt = (double)total_time / 1000000.0; + if (tt < 0.001) + tt = 0.001; + if (total_bytes < 1) + total_bytes = 1; + fprintf(stderr, "%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n", + tok_ident - TOK_IDENT, total_lines, total_bytes, + tt, (int)(total_lines / tt), + total_bytes / tt / 1000000.0); +} + +PUB_FUNC void tcc_set_environment(TCCState *s) +{ + char * path; + + path = getenv("C_INCLUDE_PATH"); + if(path != NULL) { + tcc_add_include_path(s, path); + } + path = getenv("CPATH"); + if(path != NULL) { + tcc_add_include_path(s, path); + } + path = getenv("LIBRARY_PATH"); + if(path != NULL) { + tcc_add_library_path(s, path); + } +} diff --git a/external/TCC/libtcc.h b/external/TCC/libtcc.h new file mode 100644 index 00000000..97b85872 --- /dev/null +++ b/external/TCC/libtcc.h @@ -0,0 +1,104 @@ +#ifndef LIBTCC_H +#define LIBTCC_H + +#ifndef LIBTCCAPI +# define LIBTCCAPI +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +struct TCCState; + +typedef struct TCCState TCCState; + +/* create a new TCC compilation context */ +LIBTCCAPI TCCState *tcc_new(void); + +/* free a TCC compilation context */ +LIBTCCAPI void tcc_delete(TCCState *s); + +/* set CONFIG_TCCDIR at runtime */ +LIBTCCAPI void tcc_set_lib_path(TCCState *s, const char *path); + +/* set error/warning display callback */ +LIBTCCAPI void tcc_set_error_func(TCCState *s, void *error_opaque, + void (*error_func)(void *opaque, const char *msg)); + +/* set options as from command line (multiple supported) */ +LIBTCCAPI int tcc_set_options(TCCState *s, const char *str); + +/*****************************/ +/* preprocessor */ + +/* add include path */ +LIBTCCAPI int tcc_add_include_path(TCCState *s, const char *pathname); + +/* add in system include path */ +LIBTCCAPI int tcc_add_sysinclude_path(TCCState *s, const char *pathname); + +/* define preprocessor symbol 'sym'. Can put optional value */ +LIBTCCAPI void tcc_define_symbol(TCCState *s, const char *sym, const char *value); + +/* undefine preprocess symbol 'sym' */ +LIBTCCAPI void tcc_undefine_symbol(TCCState *s, const char *sym); + +/*****************************/ +/* compiling */ + +/* add a file (C file, dll, object, library, ld script). Return -1 if error. */ +LIBTCCAPI int tcc_add_file(TCCState *s, const char *filename, int filetype); +#define TCC_FILETYPE_BINARY 1 +#define TCC_FILETYPE_C 2 +#define TCC_FILETYPE_ASM 3 +#define TCC_FILETYPE_ASM_PP 4 + +/* compile a string containing a C source. Return -1 if error. */ +LIBTCCAPI int tcc_compile_string(TCCState *s, const char *buf); + +/*****************************/ +/* linking commands */ + +/* set output type. MUST BE CALLED before any compilation */ +LIBTCCAPI int tcc_set_output_type(TCCState *s, int output_type); +#define TCC_OUTPUT_MEMORY 1 /* output will be run in memory (default) */ +#define TCC_OUTPUT_EXE 2 /* executable file */ +#define TCC_OUTPUT_DLL 3 /* dynamic library */ +#define TCC_OUTPUT_OBJ 4 /* object file */ +#define TCC_OUTPUT_PREPROCESS 5 /* only preprocess (used internally) */ + +/* equivalent to -Lpath option */ +LIBTCCAPI int tcc_add_library_path(TCCState *s, const char *pathname); + +/* the library name is the same as the argument of the '-l' option */ +LIBTCCAPI int tcc_add_library(TCCState *s, const char *libraryname); + +/* add a symbol to the compiled program */ +LIBTCCAPI int tcc_add_symbol(TCCState *s, const char *name, const void *val); + +/* output an executable, library or object file. DO NOT call + tcc_relocate() before. */ +LIBTCCAPI int tcc_output_file(TCCState *s, const char *filename); + +/* link and run main() function and return its value. DO NOT call + tcc_relocate() before. */ +LIBTCCAPI int tcc_run(TCCState *s, int argc, char **argv); + +/* do all relocations (needed before using tcc_get_symbol()) */ +LIBTCCAPI int tcc_relocate(TCCState *s1, void *ptr); +/* possible values for 'ptr': + - TCC_RELOCATE_AUTO : Allocate and manage memory internally + - NULL : return required memory size for the step below + - memory address : copy code to memory passed by the caller + returns -1 if error. */ +#define TCC_RELOCATE_AUTO (void*)1 + +/* return symbol value or NULL if not found */ +LIBTCCAPI void *tcc_get_symbol(TCCState *s, const char *name); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/external/TCC/stab.def b/external/TCC/stab.def new file mode 100644 index 00000000..48ea231e --- /dev/null +++ b/external/TCC/stab.def @@ -0,0 +1,234 @@ +/* Table of DBX symbol codes for the GNU system. + Copyright (C) 1988, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* This contains contribution from Cygnus Support. */ + +/* Global variable. Only the name is significant. + To find the address, look in the corresponding external symbol. */ +__define_stab (N_GSYM, 0x20, "GSYM") + +/* Function name for BSD Fortran. Only the name is significant. + To find the address, look in the corresponding external symbol. */ +__define_stab (N_FNAME, 0x22, "FNAME") + +/* Function name or text-segment variable for C. Value is its address. + Desc is supposedly starting line number, but GCC doesn't set it + and DBX seems not to miss it. */ +__define_stab (N_FUN, 0x24, "FUN") + +/* Data-segment variable with internal linkage. Value is its address. + "Static Sym". */ +__define_stab (N_STSYM, 0x26, "STSYM") + +/* BSS-segment variable with internal linkage. Value is its address. */ +__define_stab (N_LCSYM, 0x28, "LCSYM") + +/* Name of main routine. Only the name is significant. + This is not used in C. */ +__define_stab (N_MAIN, 0x2a, "MAIN") + +/* Global symbol in Pascal. + Supposedly the value is its line number; I'm skeptical. */ +__define_stab (N_PC, 0x30, "PC") + +/* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */ +__define_stab (N_NSYMS, 0x32, "NSYMS") + +/* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */ +__define_stab (N_NOMAP, 0x34, "NOMAP") + +/* New stab from Solaris. I don't know what it means, but it + don't seem to contain useful information. */ +__define_stab (N_OBJ, 0x38, "OBJ") + +/* New stab from Solaris. I don't know what it means, but it + don't seem to contain useful information. Possibly related to the + optimization flags used in this module. */ +__define_stab (N_OPT, 0x3c, "OPT") + +/* Register variable. Value is number of register. */ +__define_stab (N_RSYM, 0x40, "RSYM") + +/* Modula-2 compilation unit. Can someone say what info it contains? */ +__define_stab (N_M2C, 0x42, "M2C") + +/* Line number in text segment. Desc is the line number; + value is corresponding address. */ +__define_stab (N_SLINE, 0x44, "SLINE") + +/* Similar, for data segment. */ +__define_stab (N_DSLINE, 0x46, "DSLINE") + +/* Similar, for bss segment. */ +__define_stab (N_BSLINE, 0x48, "BSLINE") + +/* Sun's source-code browser stabs. ?? Don't know what the fields are. + Supposedly the field is "path to associated .cb file". THIS VALUE + OVERLAPS WITH N_BSLINE! */ +__define_stab (N_BROWS, 0x48, "BROWS") + +/* GNU Modula-2 definition module dependency. Value is the modification time + of the definition file. Other is non-zero if it is imported with the + GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there + are enough empty fields? */ +__define_stab(N_DEFD, 0x4a, "DEFD") + +/* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2 + and one is for C++. Still,... */ +/* GNU C++ exception variable. Name is variable name. */ +__define_stab (N_EHDECL, 0x50, "EHDECL") +/* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */ +__define_stab (N_MOD2, 0x50, "MOD2") + +/* GNU C++ `catch' clause. Value is its address. Desc is nonzero if + this entry is immediately followed by a CAUGHT stab saying what exception + was caught. Multiple CAUGHT stabs means that multiple exceptions + can be caught here. If Desc is 0, it means all exceptions are caught + here. */ +__define_stab (N_CATCH, 0x54, "CATCH") + +/* Structure or union element. Value is offset in the structure. */ +__define_stab (N_SSYM, 0x60, "SSYM") + +/* Name of main source file. + Value is starting text address of the compilation. */ +__define_stab (N_SO, 0x64, "SO") + +/* Automatic variable in the stack. Value is offset from frame pointer. + Also used for type descriptions. */ +__define_stab (N_LSYM, 0x80, "LSYM") + +/* Beginning of an include file. Only Sun uses this. + In an object file, only the name is significant. + The Sun linker puts data into some of the other fields. */ +__define_stab (N_BINCL, 0x82, "BINCL") + +/* Name of sub-source file (#include file). + Value is starting text address of the compilation. */ +__define_stab (N_SOL, 0x84, "SOL") + +/* Parameter variable. Value is offset from argument pointer. + (On most machines the argument pointer is the same as the frame pointer. */ +__define_stab (N_PSYM, 0xa0, "PSYM") + +/* End of an include file. No name. + This and N_BINCL act as brackets around the file's output. + In an object file, there is no significant data in this entry. + The Sun linker puts data into some of the fields. */ +__define_stab (N_EINCL, 0xa2, "EINCL") + +/* Alternate entry point. Value is its address. */ +__define_stab (N_ENTRY, 0xa4, "ENTRY") + +/* Beginning of lexical block. + The desc is the nesting level in lexical blocks. + The value is the address of the start of the text for the block. + The variables declared inside the block *precede* the N_LBRAC symbol. */ +__define_stab (N_LBRAC, 0xc0, "LBRAC") + +/* Place holder for deleted include file. Replaces a N_BINCL and everything + up to the corresponding N_EINCL. The Sun linker generates these when + it finds multiple identical copies of the symbols from an include file. + This appears only in output from the Sun linker. */ +__define_stab (N_EXCL, 0xc2, "EXCL") + +/* Modula-2 scope information. Can someone say what info it contains? */ +__define_stab (N_SCOPE, 0xc4, "SCOPE") + +/* End of a lexical block. Desc matches the N_LBRAC's desc. + The value is the address of the end of the text for the block. */ +__define_stab (N_RBRAC, 0xe0, "RBRAC") + +/* Begin named common block. Only the name is significant. */ +__define_stab (N_BCOMM, 0xe2, "BCOMM") + +/* End named common block. Only the name is significant + (and it should match the N_BCOMM). */ +__define_stab (N_ECOMM, 0xe4, "ECOMM") + +/* End common (local name): value is address. + I'm not sure how this is used. */ +__define_stab (N_ECOML, 0xe8, "ECOML") + +/* These STAB's are used on Gould systems for Non-Base register symbols + or something like that. FIXME. I have assigned the values at random + since I don't have a Gould here. Fixups from Gould folk welcome... */ +__define_stab (N_NBTEXT, 0xF0, "NBTEXT") +__define_stab (N_NBDATA, 0xF2, "NBDATA") +__define_stab (N_NBBSS, 0xF4, "NBBSS") +__define_stab (N_NBSTS, 0xF6, "NBSTS") +__define_stab (N_NBLCS, 0xF8, "NBLCS") + +/* Second symbol entry containing a length-value for the preceding entry. + The value is the length. */ +__define_stab (N_LENG, 0xfe, "LENG") + +/* The above information, in matrix format. + + STAB MATRIX + _________________________________________________ + | 00 - 1F are not dbx stab symbols | + | In most cases, the low bit is the EXTernal bit| + + | 00 UNDEF | 02 ABS | 04 TEXT | 06 DATA | + | 01 |EXT | 03 |EXT | 05 |EXT | 07 |EXT | + + | 08 BSS | 0A INDR | 0C FN_SEQ | 0E | + | 09 |EXT | 0B | 0D | 0F | + + | 10 | 12 COMM | 14 SETA | 16 SETT | + | 11 | 13 | 15 | 17 | + + | 18 SETD | 1A SETB | 1C SETV | 1E WARNING| + | 19 | 1B | 1D | 1F FN | + + |_______________________________________________| + | Debug entries with bit 01 set are unused. | + | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | + | 28 LCSYM | 2A MAIN | 2C | 2E | + | 30 PC | 32 NSYMS | 34 NOMAP | 36 | + | 38 OBJ | 3A | 3C OPT | 3E | + | 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | + | 48 BSLINE*| 4A DEFD | 4C | 4E | + | 50 EHDECL*| 52 | 54 CATCH | 56 | + | 58 | 5A | 5C | 5E | + | 60 SSYM | 62 | 64 SO | 66 | + | 68 | 6A | 6C | 6E | + | 70 | 72 | 74 | 76 | + | 78 | 7A | 7C | 7E | + | 80 LSYM | 82 BINCL | 84 SOL | 86 | + | 88 | 8A | 8C | 8E | + | 90 | 92 | 94 | 96 | + | 98 | 9A | 9C | 9E | + | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | + | A8 | AA | AC | AE | + | B0 | B2 | B4 | B6 | + | B8 | BA | BC | BE | + | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | + | C8 | CA | CC | CE | + | D0 | D2 | D4 | D6 | + | D8 | DA | DC | DE | + | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | + | E8 ECOML | EA | EC | EE | + | F0 | F2 | F4 | F6 | + | F8 | FA | FC | FE LENG | + +-----------------------------------------------+ + * 50 EHDECL is also MOD2. + * 48 BSLINE is also BROWS. + */ diff --git a/external/TCC/stab.h b/external/TCC/stab.h new file mode 100644 index 00000000..80bd594a --- /dev/null +++ b/external/TCC/stab.h @@ -0,0 +1,17 @@ +#ifndef __GNU_STAB__ + +/* Indicate the GNU stab.h is in use. */ + +#define __GNU_STAB__ + +#define __define_stab(NAME, CODE, STRING) NAME=CODE, + +enum __stab_debug_code +{ +#include "stab.def" +LAST_UNUSED_STAB_CODE +}; + +#undef __define_stab + +#endif /* __GNU_STAB_ */ diff --git a/external/TCC/tcc.c b/external/TCC/tcc.c new file mode 100644 index 00000000..9daf6e66 --- /dev/null +++ b/external/TCC/tcc.c @@ -0,0 +1,367 @@ +/* + * TCC - Tiny C Compiler + * + * Copyright (c) 2001-2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifdef ONE_SOURCE +#include "libtcc.c" +#else +#include "tcc.h" +#endif + +static void print_paths(const char *msg, char **paths, int nb_paths) +{ + int i; + printf("%s:\n%s", msg, nb_paths ? "" : " -\n"); + for(i = 0; i < nb_paths; i++) + printf(" %s\n", paths[i]); +} + +static void display_info(TCCState *s, int what) +{ + switch (what) { + case 0: + printf("tcc version %s (" +#ifdef TCC_TARGET_I386 + "i386" +#elif defined TCC_TARGET_X86_64 + "x86-64" +#elif defined TCC_TARGET_C67 + "C67" +#elif defined TCC_TARGET_ARM + "ARM" +# ifdef TCC_ARM_HARDFLOAT + " Hard Float" +# endif +#elif defined TCC_TARGET_ARM64 + "AArch64" +# ifdef TCC_ARM_HARDFLOAT + " Hard Float" +# endif +#endif +#ifdef TCC_TARGET_PE + " Windows" +#else + " Linux" +#endif + ")\n", TCC_VERSION); + break; + case 1: + printf("install: %s\n", s->tcc_lib_path); + /* print_paths("programs", NULL, 0); */ + print_paths("include", s->sysinclude_paths, s->nb_sysinclude_paths); + print_paths("libraries", s->library_paths, s->nb_library_paths); +#ifndef TCC_TARGET_PE + print_paths("crt", s->crt_paths, s->nb_crt_paths); + printf("elfinterp:\n %s\n", DEFAULT_ELFINTERP(s)); +#endif + break; + } +} + +static void help(void) +{ + printf("Tiny C Compiler "TCC_VERSION" - Copyright (C) 2001-2006 Fabrice Bellard\n" + "Usage: tcc [options...] [-o outfile] [-c] infile(s)...\n" + " tcc [options...] -run infile [arguments...]\n" + "General options:\n" + " -c compile only - generate an object file\n" + " -o outfile set output filename\n" + " -run run compiled source\n" + " -fflag set or reset (with 'no-' prefix) 'flag' (see man page)\n" + " -Wwarning set or reset (with 'no-' prefix) 'warning' (see man page)\n" + " -w disable all warnings\n" + " -v show version\n" + " -vv show included files (as sole argument: show search paths)\n" + " -dumpversion\n" + " -bench show compilation statistics\n" + " -xc -xa specify type of the next infile\n" + " - use stdin pipe as infile\n" + "Preprocessor options:\n" + " -Idir add include path 'dir'\n" + " -Dsym[=val] define 'sym' with value 'val'\n" + " -Usym undefine 'sym'\n" + " -E preprocess only\n" + " -P[1] no/alternative output of #line directives with -E\n" + " -dD dump defines\n" + "Linker options:\n" + " -Ldir add library path 'dir'\n" + " -llib link with dynamic or static library 'lib'\n" + " -pthread link with -lpthread and -D_REENTRANT (POSIX Linux)\n" + " -r generate (relocatable) object file\n" + " -rdynamic export all global symbols to dynamic linker\n" + " -shared generate a shared library\n" + " -soname set name for shared library to be used at runtime\n" + " -static static linking\n" + " -Wl,-opt[=val] set linker option (see manual)\n" + "Debugger options:\n" + " -g generate runtime debug info\n" +#ifdef CONFIG_TCC_BCHECK + " -b compile with built-in memory and bounds checker (implies -g)\n" +#endif +#ifdef CONFIG_TCC_BACKTRACE + " -bt N show N callers in stack traces\n" +#endif + "Misc options:\n" + " -nostdinc do not use standard system include paths\n" + " -nostdlib do not link with standard crt and libraries\n" + " -Bdir use 'dir' as tcc internal library and include path\n" + " -MD generate target dependencies for make\n" + " -MF depfile put generated dependencies here\n" + ); +} + +/* re-execute the i386/x86_64 cross-compilers with tcc -m32/-m64: */ +#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 +#ifdef _WIN32 +#include +static int execvp_win32(const char *prog, char **argv) +{ + int ret = spawnvp(P_NOWAIT, prog, (const char *const*)argv); + if (-1 == ret) + return ret; + cwait(&ret, ret, WAIT_CHILD); + exit(ret); +} +#define execvp execvp_win32 +#endif +static void exec_other_tcc(TCCState *s, char **argv, const char *optarg) +{ + char child_path[4096], *child_name; const char *target; + switch (atoi(optarg)) { +#ifdef TCC_TARGET_I386 + case 32: break; + case 64: target = "x86_64"; +#else + case 64: break; + case 32: target = "i386"; +#endif + pstrcpy(child_path, sizeof child_path - 40, argv[0]); + child_name = tcc_basename(child_path); + strcpy(child_name, target); +#ifdef TCC_TARGET_PE + strcat(child_name, "-win32"); +#endif + strcat(child_name, "-tcc"); + if (strcmp(argv[0], child_path)) { + if (s->verbose > 0) + printf("tcc: using '%s'\n", child_name), fflush(stdout); + execvp(argv[0] = child_path, argv); + } + tcc_error("'%s' not found", child_name); + case 0: /* ignore -march etc. */ + break; + default: + tcc_warning("unsupported option \"-m%s\"", optarg); + } +} +#else +#define exec_other_tcc(s, argv, optarg) +#endif + +static void gen_makedeps(TCCState *s, const char *target, const char *filename) +{ + FILE *depout; + char buf[1024], *ext; + int i; + + if (!filename) { + /* compute filename automatically + * dir/file.o -> dir/file.d */ + pstrcpy(buf, sizeof(buf), target); + ext = tcc_fileextension(buf); + pstrcpy(ext, sizeof(buf) - (ext-buf), ".d"); + filename = buf; + } + + if (s->verbose) + printf("<- %s\n", filename); + + /* XXX return err codes instead of error() ? */ + depout = fopen(filename, "w"); + if (!depout) + tcc_error("could not open '%s'", filename); + + fprintf(depout, "%s : \\\n", target); + for (i=0; inb_target_deps; ++i) + fprintf(depout, " %s \\\n", s->target_deps[i]); + fprintf(depout, "\n"); + fclose(depout); +} + +static char *default_outputfile(TCCState *s, const char *first_file) +{ + char buf[1024]; + char *ext; + const char *name = "a"; + + if (first_file && strcmp(first_file, "-")) + name = tcc_basename(first_file); + pstrcpy(buf, sizeof(buf), name); + ext = tcc_fileextension(buf); +#ifdef TCC_TARGET_PE + if (s->output_type == TCC_OUTPUT_DLL) + strcpy(ext, ".dll"); + else + if (s->output_type == TCC_OUTPUT_EXE) + strcpy(ext, ".exe"); + else +#endif + if (( (s->output_type == TCC_OUTPUT_OBJ && !s->option_r) || + (s->output_type == TCC_OUTPUT_PREPROCESS) ) + && *ext) + strcpy(ext, ".o"); + else + strcpy(buf, "a.out"); + + return tcc_strdup(buf); +} + +static int64_t getclock_us(void) +{ +#ifdef _WIN32 + struct _timeb tb; + _ftime(&tb); + return (tb.time * 1000LL + tb.millitm) * 1000LL; +#else + struct timeval tv; + gettimeofday(&tv, NULL); + return tv.tv_sec * 1000000LL + tv.tv_usec; +#endif +} + +int main(int argc, char **argv) +{ + TCCState *s; + int ret, optind, i; + int64_t start_time = 0; + + s = tcc_new(); + + optind = tcc_parse_args(s, argc - 1, argv + 1); + + if (s->do_bench) + start_time = getclock_us(); + + tcc_set_environment(s); + + if (optind == 0) { + help(); + return 1; + } + + if (s->option_m) + exec_other_tcc(s, argv, s->option_m); + + if (s->verbose) + display_info(s, 0); + + if (s->print_search_dirs || (s->verbose == 2 && optind == 1)) { + tcc_set_output_type(s, TCC_OUTPUT_MEMORY); + display_info(s, 1); + return 0; + } + + if (s->verbose && optind == 1) + return 0; + + if (s->nb_files == 0) + tcc_error("no input files\n"); + + /* check -c consistency : only single file handled. XXX: checks file type */ + if (s->output_type == TCC_OUTPUT_OBJ && !s->option_r) { + if (s->nb_libraries != 0) + tcc_error("cannot specify libraries with -c"); + /* accepts only a single input file */ + if ((s->nb_files != 1) && s->outfile) { + tcc_error("cannot specify multiple files with -c and -o"); + } + } + + if (s->output_type == TCC_OUTPUT_PREPROCESS) { + if (!s->outfile) { + s->ppfp = stdout; + } else { + s->ppfp = fopen(s->outfile, "w"); + if (!s->ppfp) + tcc_error("could not write '%s'", s->outfile); + } + } + + tcc_set_output_type(s, s->output_type); + + /* compile or add each files or library */ + for(i = ret = 0; i < s->nb_files && ret == 0; i++) { + int filetype = *(unsigned char *)s->files[i]; + const char *filename = s->files[i] + 1; + if (filename[0] == '-' && filename[1] == 'l') { + if (tcc_add_library(s, filename + 2) < 0) { + tcc_error_noabort("cannot find library 'lib%s'", filename+2); + ret = 1; + } + } else { + if (1 == s->verbose) + printf("-> %s\n", filename); + if (!s->outfile) + s->outfile = default_outputfile(s, filename); + if (tcc_add_file(s, filename, filetype) < 0) + ret = 1; + else + if (s->output_type == TCC_OUTPUT_OBJ) { + ret = !!tcc_output_file(s, s->outfile); + if (s->gen_deps && !ret) + gen_makedeps(s, s->outfile, s->deps_outfile); + if (!ret) { + if ((i+1) < s->nb_files) { + tcc_delete(s); + s = tcc_new(); + tcc_parse_args(s, argc - 1, argv + 1); + tcc_set_environment(s); + if (s->output_type != TCC_OUTPUT_OBJ) + tcc_error("interlnal error"); + tcc_set_output_type(s, s->output_type); + } + } + } + } + } + + if (0 == ret) { + if (s->output_type == TCC_OUTPUT_MEMORY) { +#ifdef TCC_IS_NATIVE + ret = tcc_run(s, argc - 1 - optind, argv + 1 + optind); +#else + tcc_error_noabort("-run is not available in a cross compiler"); + ret = 1; +#endif + } else + if (s->output_type == TCC_OUTPUT_EXE || + s->output_type == TCC_OUTPUT_DLL) + { + ret = !!tcc_output_file(s, s->outfile); + if (s->gen_deps && !ret) + gen_makedeps(s, s->outfile, s->deps_outfile); + } + } + + if (s->do_bench) + tcc_print_stats(s, getclock_us() - start_time); + + tcc_delete(s); + return ret; +} diff --git a/external/TCC/tcc.h b/external/TCC/tcc.h new file mode 100644 index 00000000..d891554f --- /dev/null +++ b/external/TCC/tcc.h @@ -0,0 +1,1540 @@ +/* + * TCC - Tiny C Compiler + * + * Copyright (c) 2001-2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef _TCC_H +#define _TCC_H + +#define _GNU_SOURCE +#include "config.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include /* stat() */ + +#ifdef CONFIG_TCCASSERT +#include +#define TCC_ASSERT(ex) assert(ex) +#else +#define TCC_ASSERT(ex) +#endif + +#ifndef _WIN32 +# include +# include +# include +# include +# ifndef CONFIG_TCC_STATIC +# include +# endif +/* XXX: need to define this to use them in non ISOC99 context */ + extern float strtof (const char *__nptr, char **__endptr); + extern long double strtold (const char *__nptr, char **__endptr); +#else /* on _WIN32: */ +# include +# include +# include /* open, close etc. */ +# include /* getcwd */ +# ifdef __GNUC__ +# include +# endif +# define inline __inline +# define inp next_inp +# define snprintf _snprintf +# define vsnprintf _vsnprintf +# ifndef __GNUC__ +# define strtold (long double)strtod +# define strtof (float)strtod +# define strtoll _strtoi64 +# define strtoull _strtoui64 +# endif +# ifdef LIBTCC_AS_DLL +# define LIBTCCAPI __declspec(dllexport) +# define PUB_FUNC LIBTCCAPI +# endif +#endif + +#ifndef O_BINARY +# define O_BINARY 0 +#endif + +#ifdef __GNUC__ +# define NORETURN __attribute__ ((noreturn)) +#elif defined _MSC_VER +# define NORETURN __declspec(noreturn) +#else +# define NORETURN +#endif + +#ifdef _WIN32 +# define IS_DIRSEP(c) (c == '/' || c == '\\') +# define IS_ABSPATH(p) (IS_DIRSEP(p[0]) || (p[0] && p[1] == ':' && IS_DIRSEP(p[2]))) +# define PATHCMP stricmp +#else +# define IS_DIRSEP(c) (c == '/') +# define IS_ABSPATH(p) IS_DIRSEP(p[0]) +# define PATHCMP strcmp +#endif + +#ifdef TCC_TARGET_PE +#define PATHSEP ';' +#else +#define PATHSEP ':' +#endif + +#include "elf.h" +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) +# define ELFCLASSW ELFCLASS64 +# define ElfW(type) Elf##64##_##type +# define ELFW(type) ELF##64##_##type +# define ElfW_Rel ElfW(Rela) +# define SHT_RELX SHT_RELA +# define REL_SECTION_FMT ".rela%s" +/* XXX: DLL with PLT would only work with x86-64 for now */ +# define TCC_OUTPUT_DLL_WITH_PLT +#else +# define ELFCLASSW ELFCLASS32 +# define ElfW(type) Elf##32##_##type +# define ELFW(type) ELF##32##_##type +# define ElfW_Rel ElfW(Rel) +# define SHT_RELX SHT_REL +# define REL_SECTION_FMT ".rel%s" +#endif + +/* target address type */ +#define addr_t ElfW(Addr) + +#include "stab.h" +#include "libtcc.h" + +static inline uint16_t read16le(unsigned char *p) +{ + return p[0] | (uint16_t)p[1] << 8; +} + +static inline void write16le(unsigned char *p, uint16_t x) +{ + p[0] = x & 255; + p[1] = x >> 8 & 255; +} + +static inline uint32_t read32le(unsigned char *p) +{ + return (p[0] | (uint32_t)p[1] << 8 | + (uint32_t)p[2] << 16 | (uint32_t)p[3] << 24); +} + +static inline void write32le(unsigned char *p, uint32_t x) +{ + p[0] = x & 255; + p[1] = x >> 8 & 255; + p[2] = x >> 16 & 255; + p[3] = x >> 24 & 255; +} + +static inline uint64_t read64le(unsigned char *p) +{ + return (p[0] | (uint64_t)p[1] << 8 | + (uint64_t)p[2] << 16 | (uint64_t)p[3] << 24 | + (uint64_t)p[4] << 32 | (uint64_t)p[5] << 40 | + (uint64_t)p[6] << 48 | (uint64_t)p[7] << 56); +} + +static inline void write64le(unsigned char *p, uint64_t x) +{ + p[0] = x & 255; + p[1] = x >> 8 & 255; + p[2] = x >> 16 & 255; + p[3] = x >> 24 & 255; + p[4] = x >> 32 & 255; + p[5] = x >> 40 & 255; + p[6] = x >> 48 & 255; + p[7] = x >> 56 & 255; +} + +/* parser debug */ +/* #define PARSE_DEBUG */ +/* preprocessor debug */ +/* #define PP_DEBUG */ +/* include file debug */ +/* #define INC_DEBUG */ +/* memory leak debug */ +/* #define MEM_DEBUG */ +/* assembler debug */ +/* #define ASM_DEBUG */ + +/* target selection */ +/* #define TCC_TARGET_I386 *//* i386 code generator */ +/* #define TCC_TARGET_ARM *//* ARMv4 code generator */ +/* #define TCC_TARGET_ARM64 *//* ARMv8 code generator */ +/* #define TCC_TARGET_C67 *//* TMS320C67xx code generator */ +/* #define TCC_TARGET_X86_64 *//* x86-64 code generator */ + +/* default target is I386 */ +#if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_ARM) && \ + !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \ + !defined(TCC_TARGET_X86_64) +#define TCC_TARGET_I386 +#endif + +#if !defined(TCC_UCLIBC) && !defined(TCC_TARGET_ARM) && \ + !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_C67) && \ + !defined(CONFIG_USE_LIBGCC) +#define CONFIG_TCC_BCHECK /* enable bound checking code */ +#endif + +/* define it to include assembler support */ +#if !defined(TCC_TARGET_ARM) && !defined(TCC_TARGET_ARM64) && \ + !defined(TCC_TARGET_C67) +#define CONFIG_TCC_ASM +#endif + +/* object format selection */ +#if defined(TCC_TARGET_C67) +#define TCC_TARGET_COFF +#endif + +/* only native compiler supports -run */ +#if defined _WIN32 == defined TCC_TARGET_PE +# if (defined __i386__ || defined _X86_) && defined TCC_TARGET_I386 +# define TCC_IS_NATIVE +# elif (defined __x86_64__ || defined _AMD64_) && defined TCC_TARGET_X86_64 +# define TCC_IS_NATIVE +# elif defined __arm__ && defined TCC_TARGET_ARM +# define TCC_IS_NATIVE +# elif defined __aarch64__ && defined TCC_TARGET_ARM64 +# define TCC_IS_NATIVE +# endif +#endif + +#if defined TCC_IS_NATIVE && !defined CONFIG_TCCBOOT +# define CONFIG_TCC_BACKTRACE +#endif + +/* ------------ path configuration ------------ */ + +#ifndef CONFIG_SYSROOT +# define CONFIG_SYSROOT "" +#endif +#ifndef CONFIG_TCCDIR +# define CONFIG_TCCDIR "." +#endif +#ifndef CONFIG_LDDIR +# ifdef TCC_TARGET_X86_64 +# define CONFIG_LDDIR "lib64" +# else +# define CONFIG_LDDIR "lib" +# endif +#endif + +#ifdef CONFIG_MULTIARCHDIR +# define USE_MUADIR(s) s "/" CONFIG_MULTIARCHDIR +# define ALSO_MUADIR(s) s "/" CONFIG_MULTIARCHDIR ":" s +#else +# define USE_MUADIR(s) s +# define ALSO_MUADIR(s) s +#endif + +/* path to find crt1.o, crti.o and crtn.o */ +#ifndef CONFIG_TCC_CRTPREFIX +# define CONFIG_TCC_CRTPREFIX USE_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) +#endif + +/* Below: {B} is substituted by CONFIG_TCCDIR (rsp. -B option) */ + +/* system include paths */ +#ifndef CONFIG_TCC_SYSINCLUDEPATHS +# ifdef TCC_TARGET_PE +# define CONFIG_TCC_SYSINCLUDEPATHS "{B}/include;{B}/include/winapi" +# else +# define CONFIG_TCC_SYSINCLUDEPATHS \ + "{B}/include" \ + ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/include") \ + ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/include") +# endif +#endif + +/* library search paths */ +#ifndef CONFIG_TCC_LIBPATHS +# ifdef TCC_TARGET_PE +# define CONFIG_TCC_LIBPATHS "{B}/lib" +# else +# define CONFIG_TCC_LIBPATHS \ + ALSO_MUADIR(CONFIG_SYSROOT "/usr/" CONFIG_LDDIR) \ + ":" ALSO_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) \ + ":" ALSO_MUADIR(CONFIG_SYSROOT "/usr/local/" CONFIG_LDDIR) +# endif +#endif + +/* name of ELF interpreter */ +#ifndef CONFIG_TCC_ELFINTERP +# if defined __FreeBSD__ +# define CONFIG_TCC_ELFINTERP "/libexec/ld-elf.so.1" +# elif defined __FreeBSD_kernel__ +# if defined(TCC_TARGET_X86_64) +# define CONFIG_TCC_ELFINTERP "/lib/ld-kfreebsd-x86-64.so.1" +# else +# define CONFIG_TCC_ELFINTERP "/lib/ld.so.1" +# endif +# elif defined __DragonFly__ +# define CONFIG_TCC_ELFINTERP "/usr/libexec/ld-elf.so.2" +# elif defined __NetBSD__ +# define CONFIG_TCC_ELFINTERP "/usr/libexec/ld.elf_so" +# elif defined __GNU__ +# define CONFIG_TCC_ELFINTERP "/lib/ld.so" +# elif defined(TCC_TARGET_PE) +# define CONFIG_TCC_ELFINTERP "-" +# elif defined(TCC_UCLIBC) +# define CONFIG_TCC_ELFINTERP "/lib/ld-uClibc.so.0" /* is there a uClibc for x86_64 ? */ +# elif defined TCC_TARGET_ARM64 +# define CONFIG_TCC_ELFINTERP "/lib/ld-linux-aarch64.so.1" +# elif defined(TCC_TARGET_X86_64) +# define CONFIG_TCC_ELFINTERP "/lib64/ld-linux-x86-64.so.2" +# elif !defined(TCC_ARM_EABI) +# define CONFIG_TCC_ELFINTERP "/lib/ld-linux.so.2" +# endif +#endif + +/* var elf_interp dans *-gen.c */ +#ifdef CONFIG_TCC_ELFINTERP +# define DEFAULT_ELFINTERP(s) CONFIG_TCC_ELFINTERP +#else +# define DEFAULT_ELFINTERP(s) default_elfinterp(s) +#endif + +/* library to use with CONFIG_USE_LIBGCC instead of libtcc1.a */ +#define TCC_LIBGCC USE_MUADIR(CONFIG_SYSROOT "/" CONFIG_LDDIR) "/libgcc_s.so.1" + +/* -------------------------------------------- */ +/* include the target specific definitions */ + +#define TARGET_DEFS_ONLY +#ifdef TCC_TARGET_I386 +# include "i386-gen.c" +#endif +#ifdef TCC_TARGET_X86_64 +# include "x86_64-gen.c" +#endif +#ifdef TCC_TARGET_ARM +# include "arm-gen.c" +#endif +#ifdef TCC_TARGET_ARM64 +# include "arm64-gen.c" +#endif +#ifdef TCC_TARGET_C67 +# include "coff.h" +# include "c67-gen.c" +#endif +#undef TARGET_DEFS_ONLY + +/* -------------------------------------------- */ + +#define INCLUDE_STACK_SIZE 32 +#define IFDEF_STACK_SIZE 64 +#define VSTACK_SIZE 256 +#define STRING_MAX_SIZE 1024 +#define PACK_STACK_SIZE 8 + +#define TOK_HASH_SIZE 8192 /* must be a power of two */ +#define TOK_ALLOC_INCR 512 /* must be a power of two */ +#define TOK_MAX_SIZE 4 /* token max size in int unit when stored in string */ + +/* token symbol management */ +typedef struct TokenSym { + struct TokenSym *hash_next; + struct Sym *sym_define; /* direct pointer to define */ + struct Sym *sym_label; /* direct pointer to label */ + struct Sym *sym_struct; /* direct pointer to structure */ + struct Sym *sym_identifier; /* direct pointer to identifier */ + int tok; /* token number */ + int len; + char str[1]; +} TokenSym; + +#ifdef TCC_TARGET_PE +typedef unsigned short nwchar_t; +#else +typedef int nwchar_t; +#endif + +typedef struct CString { + int size; /* size in bytes */ + void *data; /* either 'char *' or 'nwchar_t *' */ + int size_allocated; + void *data_allocated; /* if non NULL, data has been malloced */ +} CString; + +/* type definition */ +typedef struct CType { + int t; + struct Sym *ref; +} CType; + +/* constant value */ +typedef union CValue { + long double ld; + double d; + float f; + uint64_t i; + struct { + int size; + const void *data; + void *data_allocated; + } str; + int tab[LDOUBLE_SIZE/4]; +} CValue; + +/* value on stack */ +typedef struct SValue { + CType type; /* type */ + unsigned short r; /* register + flags */ + unsigned short r2; /* second register, used for 'long long' + type. If not used, set to VT_CONST */ + CValue c; /* constant, if VT_CONST */ + struct Sym *sym; /* symbol, if (VT_SYM | VT_CONST) */ +} SValue; + +struct Attribute { + unsigned + func_call : 3, /* calling convention (0..5), see below */ + aligned : 5, /* alignement (0..16) */ + packed : 1, + func_export : 1, + func_import : 1, + func_args : 5, + func_proto : 1, + mode : 4, + weak : 1, + visibility : 2, + fill : 8; // 8 bits left to fit well in union below +}; + +/* GNUC attribute definition */ +typedef struct AttributeDef { + struct Attribute a; + struct Section *section; + int alias_target; /* token */ + int asm_label; /* associated asm label */ +} AttributeDef; + +/* symbol management */ +typedef struct Sym { + int v; /* symbol token */ + int asm_label; /* associated asm label */ + union { + long r; /* associated register */ + struct Attribute a; + }; + union { + long c; /* associated number */ + int *d; /* define token stream */ + }; + CType type; /* associated type */ + union { + struct Sym *next; /* next related symbol */ + long jnext; /* next jump label */ + }; + struct Sym *prev; /* prev symbol in stack */ + struct Sym *prev_tok; /* previous symbol for this token */ +} Sym; + +/* section definition */ +/* XXX: use directly ELF structure for parameters ? */ +/* special flag to indicate that the section should not be linked to + the other ones */ +#define SHF_PRIVATE 0x80000000 + +/* special flag, too */ +#define SECTION_ABS ((void *)1) + +typedef struct Section { + unsigned long data_offset; /* current data offset */ + unsigned char *data; /* section data */ + unsigned long data_allocated; /* used for realloc() handling */ + int sh_name; /* elf section name (only used during output) */ + int sh_num; /* elf section number */ + int sh_type; /* elf section type */ + int sh_flags; /* elf section flags */ + int sh_info; /* elf section info */ + int sh_addralign; /* elf section alignment */ + int sh_entsize; /* elf entry size */ + unsigned long sh_size; /* section size (only used during output) */ + addr_t sh_addr; /* address at which the section is relocated */ + unsigned long sh_offset; /* file offset */ + int nb_hashed_syms; /* used to resize the hash table */ + struct Section *link; /* link to another section */ + struct Section *reloc; /* corresponding section for relocation, if any */ + struct Section *hash; /* hash table for symbols */ + struct Section *next; + char name[1]; /* section name */ +} Section; + +typedef struct DLLReference { + int level; + void *handle; + char name[1]; +} DLLReference; + +/* -------------------------------------------------- */ + +#define SYM_STRUCT 0x40000000 /* struct/union/enum symbol space */ +#define SYM_FIELD 0x20000000 /* struct/union field symbol space */ +#define SYM_FIRST_ANOM 0x10000000 /* first anonymous sym */ + +/* stored in 'Sym.c' field */ +#define FUNC_NEW 1 /* ansi function prototype */ +#define FUNC_OLD 2 /* old function prototype */ +#define FUNC_ELLIPSIS 3 /* ansi function prototype with ... */ + +/* stored in 'Sym.r' field */ +#define FUNC_CDECL 0 /* standard c call */ +#define FUNC_STDCALL 1 /* pascal c call */ +#define FUNC_FASTCALL1 2 /* first param in %eax */ +#define FUNC_FASTCALL2 3 /* first parameters in %eax, %edx */ +#define FUNC_FASTCALL3 4 /* first parameter in %eax, %edx, %ecx */ +#define FUNC_FASTCALLW 5 /* first parameter in %ecx, %edx */ + +/* field 'Sym.t' for macros */ +#define MACRO_OBJ 0 /* object like macro */ +#define MACRO_FUNC 1 /* function like macro */ + +/* field 'Sym.r' for C labels */ +#define LABEL_DEFINED 0 /* label is defined */ +#define LABEL_FORWARD 1 /* label is forward defined */ +#define LABEL_DECLARED 2 /* label is declared but never used */ + +/* type_decl() types */ +#define TYPE_ABSTRACT 1 /* type without variable */ +#define TYPE_DIRECT 2 /* type with variable */ + +#define IO_BUF_SIZE 8192 + +typedef struct BufferedFile { + uint8_t *buf_ptr; + uint8_t *buf_end; + int fd; + struct BufferedFile *prev; + int line_num; /* current line number - here to simplify code */ + int line_ref; /* tcc -E: last printed line */ + int ifndef_macro; /* #ifndef macro / #endif search */ + int ifndef_macro_saved; /* saved ifndef_macro */ + int *ifdef_stack_ptr; /* ifdef_stack value at the start of the file */ + int include_next_index; /* next search path */ + char filename[1024]; /* filename */ + unsigned char unget[4]; + unsigned char buffer[1]; /* extra size for CH_EOB char */ +} BufferedFile; + +#define CH_EOB '\\' /* end of buffer or '\0' char in file */ +#define CH_EOF (-1) /* end of file */ + +/* parsing state (used to save parser state to reparse part of the + source several times) */ +typedef struct ParseState { + const int *macro_ptr; + int line_num; + int tok; + CValue tokc; +} ParseState; + +/* used to record tokens */ +typedef struct TokenString { + int *str; + int len; + int allocated_len; + int last_line_num; + /* used to chain token-strings with begin/end_macro() */ + struct TokenString *prev; + const int *prev_ptr; + char alloc; +} TokenString; + +/* inline functions */ +typedef struct InlineFunc { + TokenString func_str; + Sym *sym; + char filename[1]; +} InlineFunc; + +/* include file cache, used to find files faster and also to eliminate + inclusion if the include file is protected by #ifndef ... #endif */ +typedef struct CachedInclude { + int ifndef_macro; + int hash_next; /* -1 if none */ + char filename[1]; /* path specified in #include */ +} CachedInclude; + +#define CACHED_INCLUDES_HASH_SIZE 512 + +#ifdef CONFIG_TCC_ASM +typedef struct ExprValue { + uint32_t v; + Sym *sym; +} ExprValue; + +#define MAX_ASM_OPERANDS 30 +typedef struct ASMOperand { + int id; /* GCC 3 optionnal identifier (0 if number only supported */ + char *constraint; + char asm_str[16]; /* computed asm string for operand */ + SValue *vt; /* C value of the expression */ + int ref_index; /* if >= 0, gives reference to a output constraint */ + int input_index; /* if >= 0, gives reference to an input constraint */ + int priority; /* priority, used to assign registers */ + int reg; /* if >= 0, register number used for this operand */ + int is_llong; /* true if double register value */ + int is_memory; /* true if memory operand */ + int is_rw; /* for '+' modifier */ +} ASMOperand; +#endif + +struct sym_attr { + unsigned long got_offset; + unsigned long plt_offset; +#ifdef TCC_TARGET_ARM + unsigned char plt_thumb_stub:1; +#endif +}; + +struct TCCState { + + int verbose; /* if true, display some information during compilation */ + int nostdinc; /* if true, no standard headers are added */ + int nostdlib; /* if true, no standard libraries are added */ + int nocommon; /* if true, do not use common symbols for .bss data */ + int static_link; /* if true, static linking is performed */ + int rdynamic; /* if true, all symbols are exported */ + int symbolic; /* if true, resolve symbols in the current module first */ + int alacarte_link; /* if true, only link in referenced objects from archive */ + + char *tcc_lib_path; /* CONFIG_TCCDIR or -B option */ + char *soname; /* as specified on the command line (-soname) */ + char *rpath; /* as specified on the command line (-Wl,-rpath=) */ + + /* output type, see TCC_OUTPUT_XXX */ + int output_type; + /* output format, see TCC_OUTPUT_FORMAT_xxx */ + int output_format; + + /* C language options */ + int char_is_unsigned; + int leading_underscore; + int ms_extensions; /* allow nested named struct w/o identifier behave like unnamed */ + int old_struct_init_code; /* use old algorithm to init array in struct when there is no '{' used. + Liuux 2.4.26 can't find initrd when compiled with a new algorithm */ + int dollars_in_identifiers; /* allows '$' char in indentifiers */ + + /* warning switches */ + int warn_write_strings; + int warn_unsupported; + int warn_error; + int warn_none; + int warn_implicit_function_declaration; + + /* compile with debug symbol (and use them if error during execution) */ + int do_debug; + int do_strip; +#ifdef CONFIG_TCC_BCHECK + /* compile with built-in memory and bounds checker */ + int do_bounds_check; +#endif +#ifdef TCC_TARGET_ARM + enum float_abi float_abi; /* float ABI of the generated code*/ +#endif + + addr_t text_addr; /* address of text section */ + int has_text_addr; + + unsigned long section_align; /* section alignment */ + + char *init_symbol; /* symbols to call at load-time (not used currently) */ + char *fini_symbol; /* symbols to call at unload-time (not used currently) */ + +#ifdef TCC_TARGET_I386 + int seg_size; /* 32. Can be 16 with i386 assembler (.code16) */ +#endif + + /* array of all loaded dlls (including those referenced by loaded dlls) */ + DLLReference **loaded_dlls; + int nb_loaded_dlls; + + /* include paths */ + char **include_paths; + int nb_include_paths; + + char **sysinclude_paths; + int nb_sysinclude_paths; + + /* library paths */ + char **library_paths; + int nb_library_paths; + + /* crt?.o object path */ + char **crt_paths; + int nb_crt_paths; + + /* error handling */ + void *error_opaque; + void (*error_func)(void *opaque, const char *msg); + int error_set_jmp_enabled; + jmp_buf error_jmp_buf; + int nb_errors; + + /* output file for preprocessing (-E) */ + FILE *ppfp; + enum { + LINE_MACRO_OUTPUT_FORMAT_GCC, + LINE_MACRO_OUTPUT_FORMAT_NONE, + LINE_MACRO_OUTPUT_FORMAT_STD + } Pflag; /* -P switch */ + int dflag; /* -dX value */ + + /* for -MD/-MF: collected dependencies for this compilation */ + char **target_deps; + int nb_target_deps; + + /* compilation */ + BufferedFile *include_stack[INCLUDE_STACK_SIZE]; + BufferedFile **include_stack_ptr; + + int ifdef_stack[IFDEF_STACK_SIZE]; + int *ifdef_stack_ptr; + + /* included files enclosed with #ifndef MACRO */ + int cached_includes_hash[CACHED_INCLUDES_HASH_SIZE]; + CachedInclude **cached_includes; + int nb_cached_includes; + + /* #pragma pack stack */ + int pack_stack[PACK_STACK_SIZE]; + int *pack_stack_ptr; + char **pragma_libs; + int nb_pragma_libs; + + /* inline functions are stored as token lists and compiled last + only if referenced */ + struct InlineFunc **inline_fns; + int nb_inline_fns; + + /* sections */ + Section **sections; + int nb_sections; /* number of sections, including first dummy section */ + + Section **priv_sections; + int nb_priv_sections; /* number of private sections */ + + /* got & plt handling */ + Section *got; + Section *plt; + struct sym_attr *sym_attrs; + int nb_sym_attrs; + /* give the correspondance from symtab indexes to dynsym indexes */ + int *symtab_to_dynsym; + + /* temporary dynamic symbol sections (for dll loading) */ + Section *dynsymtab_section; + /* exported dynamic symbol section */ + Section *dynsym; + /* copy of the gobal symtab_section variable */ + Section *symtab; + /* tiny assembler state */ + Sym *asm_labels; + +#ifdef TCC_TARGET_PE + /* PE info */ + int pe_subsystem; + unsigned pe_file_align; + unsigned pe_stack_size; +# ifdef TCC_TARGET_X86_64 + Section *uw_pdata; + int uw_sym; + unsigned uw_offs; +# endif +#endif + +#ifdef TCC_IS_NATIVE + const char *runtime_main; + /* for tcc_relocate */ + void *runtime_mem; +# ifdef HAVE_SELINUX + void *write_mem; + unsigned long mem_size; +# endif +#endif + + /* used by main and tcc_parse_args only */ + char **files; /* files seen on command line */ + int nb_files; /* number thereof */ + int nb_libraries; /* number of libs thereof */ + char *outfile; /* output filename */ + char *option_m; /* only -m32/-m64 handled */ + int print_search_dirs; /* option */ + int option_r; /* option -r */ + int do_bench; /* option -bench */ + int gen_deps; /* option -MD */ + char *deps_outfile; /* option -MF */ +}; + +/* The current value can be: */ +#define VT_VALMASK 0x003f /* mask for value location, register or: */ +#define VT_CONST 0x0030 /* constant in vc (must be first non register value) */ +#define VT_LLOCAL 0x0031 /* lvalue, offset on stack */ +#define VT_LOCAL 0x0032 /* offset on stack */ +#define VT_CMP 0x0033 /* the value is stored in processor flags (in vc) */ +#define VT_JMP 0x0034 /* value is the consequence of jmp true (even) */ +#define VT_JMPI 0x0035 /* value is the consequence of jmp false (odd) */ +#define VT_REF 0x0040 /* value is pointer to structure rather than address */ +#define VT_LVAL 0x0100 /* var is an lvalue */ +#define VT_SYM 0x0200 /* a symbol value is added */ +#define VT_MUSTCAST 0x0400 /* value must be casted to be correct (used for + char/short stored in integer registers) */ +#define VT_MUSTBOUND 0x0800 /* bound checking must be done before + dereferencing value */ +#define VT_BOUNDED 0x8000 /* value is bounded. The address of the + bounding function call point is in vc */ +#define VT_LVAL_BYTE 0x1000 /* lvalue is a byte */ +#define VT_LVAL_SHORT 0x2000 /* lvalue is a short */ +#define VT_LVAL_UNSIGNED 0x4000 /* lvalue is unsigned */ +#define VT_LVAL_TYPE (VT_LVAL_BYTE | VT_LVAL_SHORT | VT_LVAL_UNSIGNED) + +/* types */ +#define VT_BTYPE 0x000f /* mask for basic type */ +#define VT_INT 0 /* integer type */ +#define VT_BYTE 1 /* signed byte type */ +#define VT_SHORT 2 /* short type */ +#define VT_VOID 3 /* void type */ +#define VT_PTR 4 /* pointer */ +#define VT_ENUM 5 /* enum definition */ +#define VT_FUNC 6 /* function type */ +#define VT_STRUCT 7 /* struct/union definition */ +#define VT_FLOAT 8 /* IEEE float */ +#define VT_DOUBLE 9 /* IEEE double */ +#define VT_LDOUBLE 10 /* IEEE long double */ +#define VT_BOOL 11 /* ISOC99 boolean type */ +#define VT_LLONG 12 /* 64 bit integer */ +#define VT_LONG 13 /* long integer (NEVER USED as type, only + during parsing) */ +#define VT_QLONG 14 /* 128-bit integer. Only used for x86-64 ABI */ +#define VT_QFLOAT 15 /* 128-bit float. Only used for x86-64 ABI */ +#define VT_UNSIGNED 0x0010 /* unsigned type */ +#define VT_ARRAY 0x0020 /* array type (also has VT_PTR) */ +#define VT_BITFIELD 0x0040 /* bitfield modifier */ +#define VT_CONSTANT 0x0800 /* const modifier */ +#define VT_VOLATILE 0x1000 /* volatile modifier */ +#define VT_DEFSIGN 0x2000 /* signed type */ +#define VT_VLA 0x00020000 /* VLA type (also has VT_PTR and VT_ARRAY) */ + +/* storage */ +#define VT_EXTERN 0x00000080 /* extern definition */ +#define VT_STATIC 0x00000100 /* static variable */ +#define VT_TYPEDEF 0x00000200 /* typedef definition */ +#define VT_INLINE 0x00000400 /* inline definition */ +#define VT_IMPORT 0x00004000 /* win32: extern data imported from dll */ +#define VT_EXPORT 0x00008000 /* win32: data exported from dll */ +#define VT_WEAK 0x00010000 /* weak symbol */ +#define VT_TLS 0x00040000 /* thread-local storage */ +#define VT_VIS_SHIFT 19 /* shift for symbol visibility, overlapping + bitfield values, because bitfields never + have linkage and hence never have + visibility. */ +#define VT_VIS_SIZE 2 /* We have four visibilities. */ +#define VT_VIS_MASK (((1 << VT_VIS_SIZE)-1) << VT_VIS_SHIFT) + +#define VT_STRUCT_SHIFT 19 /* shift for bitfield shift values (max: 32 - 2*6) */ + + +/* type mask (except storage) */ +#define VT_STORAGE (VT_EXTERN | VT_STATIC | VT_TYPEDEF | VT_INLINE | VT_IMPORT | VT_EXPORT | VT_WEAK | VT_VIS_MASK) +#define VT_TYPE (~(VT_STORAGE)) + +/* token values */ + +/* warning: the following compare tokens depend on i386 asm code */ +#define TOK_ULT 0x92 +#define TOK_UGE 0x93 +#define TOK_EQ 0x94 +#define TOK_NE 0x95 +#define TOK_ULE 0x96 +#define TOK_UGT 0x97 +#define TOK_Nset 0x98 +#define TOK_Nclear 0x99 +#define TOK_LT 0x9c +#define TOK_GE 0x9d +#define TOK_LE 0x9e +#define TOK_GT 0x9f + +#define TOK_LAND 0xa0 +#define TOK_LOR 0xa1 +#define TOK_DEC 0xa2 +#define TOK_MID 0xa3 /* inc/dec, to void constant */ +#define TOK_INC 0xa4 +#define TOK_UDIV 0xb0 /* unsigned division */ +#define TOK_UMOD 0xb1 /* unsigned modulo */ +#define TOK_PDIV 0xb2 /* fast division with undefined rounding for pointers */ + +/* tokens that carry values (in additional token string space / tokc) --> */ +#define TOK_CCHAR 0xb3 /* char constant in tokc */ +#define TOK_LCHAR 0xb4 +#define TOK_CINT 0xb5 /* number in tokc */ +#define TOK_CUINT 0xb6 /* unsigned int constant */ +#define TOK_CLLONG 0xb7 /* long long constant */ +#define TOK_CULLONG 0xb8 /* unsigned long long constant */ +#define TOK_STR 0xb9 /* pointer to string in tokc */ +#define TOK_LSTR 0xba +#define TOK_CFLOAT 0xbb /* float constant */ +#define TOK_CDOUBLE 0xbc /* double constant */ +#define TOK_CLDOUBLE 0xbd /* long double constant */ +#define TOK_PPNUM 0xbe /* preprocessor number */ +#define TOK_PPSTR 0xbf /* preprocessor string */ +#define TOK_LINENUM 0xc0 /* line number info */ +/* <-- */ + +#define TOK_UMULL 0xc2 /* unsigned 32x32 -> 64 mul */ +#define TOK_ADDC1 0xc3 /* add with carry generation */ +#define TOK_ADDC2 0xc4 /* add with carry use */ +#define TOK_SUBC1 0xc5 /* add with carry generation */ +#define TOK_SUBC2 0xc6 /* add with carry use */ +#define TOK_ARROW 0xc7 +#define TOK_DOTS 0xc8 /* three dots */ +#define TOK_SHR 0xc9 /* unsigned shift right */ +#define TOK_TWOSHARPS 0xca /* ## preprocessing token */ +#define TOK_PLCHLDR 0xcb /* placeholder token as defined in C99 */ +#define TOK_NOSUBST 0xcc /* means following token has already been pp'd */ + +#define TOK_SHL 0x01 /* shift left */ +#define TOK_SAR 0x02 /* signed shift right */ + +/* assignement operators : normal operator or 0x80 */ +#define TOK_A_MOD 0xa5 +#define TOK_A_AND 0xa6 +#define TOK_A_MUL 0xaa +#define TOK_A_ADD 0xab +#define TOK_A_SUB 0xad +#define TOK_A_DIV 0xaf +#define TOK_A_XOR 0xde +#define TOK_A_OR 0xfc +#define TOK_A_SHL 0x81 +#define TOK_A_SAR 0x82 + +#ifndef offsetof +#define offsetof(type, field) ((size_t) &((type *)0)->field) +#endif + +#ifndef countof +#define countof(tab) (sizeof(tab) / sizeof((tab)[0])) +#endif + +#define TOK_EOF (-1) /* end of file */ +#define TOK_LINEFEED 10 /* line feed */ + +/* all identificators and strings have token above that */ +#define TOK_IDENT 256 + +#define DEF_ASM(x) DEF(TOK_ASM_ ## x, #x) +#define TOK_ASM_int TOK_INT +#define DEF_ASMDIR(x) DEF(TOK_ASMDIR_ ## x, "." #x) +#define TOK_ASMDIR_FIRST TOK_ASMDIR_byte +#define TOK_ASMDIR_LAST TOK_ASMDIR_section + +#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 +/* only used for i386 asm opcodes definitions */ +#define DEF_BWL(x) \ + DEF(TOK_ASM_ ## x ## b, #x "b") \ + DEF(TOK_ASM_ ## x ## w, #x "w") \ + DEF(TOK_ASM_ ## x ## l, #x "l") \ + DEF(TOK_ASM_ ## x, #x) +#define DEF_WL(x) \ + DEF(TOK_ASM_ ## x ## w, #x "w") \ + DEF(TOK_ASM_ ## x ## l, #x "l") \ + DEF(TOK_ASM_ ## x, #x) +#ifdef TCC_TARGET_X86_64 +# define DEF_BWLQ(x) \ + DEF(TOK_ASM_ ## x ## b, #x "b") \ + DEF(TOK_ASM_ ## x ## w, #x "w") \ + DEF(TOK_ASM_ ## x ## l, #x "l") \ + DEF(TOK_ASM_ ## x ## q, #x "q") \ + DEF(TOK_ASM_ ## x, #x) +# define DEF_WLQ(x) \ + DEF(TOK_ASM_ ## x ## w, #x "w") \ + DEF(TOK_ASM_ ## x ## l, #x "l") \ + DEF(TOK_ASM_ ## x ## q, #x "q") \ + DEF(TOK_ASM_ ## x, #x) +# define DEF_BWLX DEF_BWLQ +# define DEF_WLX DEF_WLQ +/* number of sizes + 1 */ +# define NBWLX 5 +#else +# define DEF_BWLX DEF_BWL +# define DEF_WLX DEF_WL +/* number of sizes + 1 */ +# define NBWLX 4 +#endif + +#define DEF_FP1(x) \ + DEF(TOK_ASM_ ## f ## x ## s, "f" #x "s") \ + DEF(TOK_ASM_ ## fi ## x ## l, "fi" #x "l") \ + DEF(TOK_ASM_ ## f ## x ## l, "f" #x "l") \ + DEF(TOK_ASM_ ## fi ## x ## s, "fi" #x "s") + +#define DEF_FP(x) \ + DEF(TOK_ASM_ ## f ## x, "f" #x ) \ + DEF(TOK_ASM_ ## f ## x ## p, "f" #x "p") \ + DEF_FP1(x) + +#define DEF_ASMTEST(x,suffix) \ + DEF_ASM(x ## o ## suffix) \ + DEF_ASM(x ## no ## suffix) \ + DEF_ASM(x ## b ## suffix) \ + DEF_ASM(x ## c ## suffix) \ + DEF_ASM(x ## nae ## suffix) \ + DEF_ASM(x ## nb ## suffix) \ + DEF_ASM(x ## nc ## suffix) \ + DEF_ASM(x ## ae ## suffix) \ + DEF_ASM(x ## e ## suffix) \ + DEF_ASM(x ## z ## suffix) \ + DEF_ASM(x ## ne ## suffix) \ + DEF_ASM(x ## nz ## suffix) \ + DEF_ASM(x ## be ## suffix) \ + DEF_ASM(x ## na ## suffix) \ + DEF_ASM(x ## nbe ## suffix) \ + DEF_ASM(x ## a ## suffix) \ + DEF_ASM(x ## s ## suffix) \ + DEF_ASM(x ## ns ## suffix) \ + DEF_ASM(x ## p ## suffix) \ + DEF_ASM(x ## pe ## suffix) \ + DEF_ASM(x ## np ## suffix) \ + DEF_ASM(x ## po ## suffix) \ + DEF_ASM(x ## l ## suffix) \ + DEF_ASM(x ## nge ## suffix) \ + DEF_ASM(x ## nl ## suffix) \ + DEF_ASM(x ## ge ## suffix) \ + DEF_ASM(x ## le ## suffix) \ + DEF_ASM(x ## ng ## suffix) \ + DEF_ASM(x ## nle ## suffix) \ + DEF_ASM(x ## g ## suffix) + +#endif /* defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 */ + +enum tcc_token { + TOK_LAST = TOK_IDENT - 1 +#define DEF(id, str) ,id +#include "tcctok.h" +#undef DEF +}; + +#define TOK_UIDENT TOK_DEFINE + +/* space exlcuding newline */ +static inline int is_space(int ch) +{ + return ch == ' ' || ch == '\t' || ch == '\v' || ch == '\f' || ch == '\r'; +} + +static inline int isid(int c) +{ + return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_'; +} + +static inline int isnum(int c) +{ + return c >= '0' && c <= '9'; +} + +static inline int isoct(int c) +{ + return c >= '0' && c <= '7'; +} + +static inline int toup(int c) +{ + return (c >= 'a' && c <= 'z') ? c - 'a' + 'A' : c; +} + +#ifndef PUB_FUNC +# define PUB_FUNC +#endif + +#ifdef ONE_SOURCE +#define ST_INLN static inline +#define ST_FUNC static +#define ST_DATA static +#else +#define ST_INLN +#define ST_FUNC +#define ST_DATA extern +#endif + +/* ------------ libtcc.c ------------ */ + +/* use GNU C extensions */ +ST_DATA int gnu_ext; +/* use Tiny C extensions */ +ST_DATA int tcc_ext; +/* XXX: get rid of this ASAP */ +ST_DATA struct TCCState *tcc_state; + +#define AFF_PRINT_ERROR 0x0001 /* print error if file not found */ +#define AFF_REFERENCED_DLL 0x0002 /* load a referenced dll from another dll */ +#define AFF_PREPROCESS 0x0004 /* preprocess file */ + +/* public functions currently used by the tcc main function */ +PUB_FUNC char *pstrcpy(char *buf, int buf_size, const char *s); +PUB_FUNC char *pstrcat(char *buf, int buf_size, const char *s); +PUB_FUNC char *pstrncpy(char *out, const char *in, size_t num); +PUB_FUNC char *tcc_basename(const char *name); +PUB_FUNC char *tcc_fileextension (const char *name); + +#ifndef MEM_DEBUG +PUB_FUNC void tcc_free(void *ptr); +PUB_FUNC void *tcc_malloc(unsigned long size); +PUB_FUNC void *tcc_mallocz(unsigned long size); +PUB_FUNC void *tcc_realloc(void *ptr, unsigned long size); +PUB_FUNC char *tcc_strdup(const char *str); +#else +#define tcc_free(ptr) tcc_free_debug(ptr) +#define tcc_malloc(size) tcc_malloc_debug(size, __FILE__, __LINE__) +#define tcc_mallocz(size) tcc_mallocz_debug(size, __FILE__, __LINE__) +#define tcc_realloc(ptr,size) tcc_realloc_debug(ptr, size, __FILE__, __LINE__) +#define tcc_strdup(str) tcc_strdup_debug(str, __FILE__, __LINE__) +PUB_FUNC void tcc_free_debug(void *ptr); +PUB_FUNC void *tcc_malloc_debug(unsigned long size, const char *file, int line); +PUB_FUNC void *tcc_mallocz_debug(unsigned long size, const char *file, int line); +PUB_FUNC void *tcc_realloc_debug(void *ptr, unsigned long size, const char *file, int line); +PUB_FUNC char *tcc_strdup_debug(const char *str, const char *file, int line); +#endif + +#define free(p) use_tcc_free(p) +#define malloc(s) use_tcc_malloc(s) +#define realloc(p, s) use_tcc_realloc(p, s) +#undef strdup +#define strdup(s) use_tcc_strdup(s) +PUB_FUNC void tcc_memstats(int bench); +PUB_FUNC void tcc_error_noabort(const char *fmt, ...); +PUB_FUNC NORETURN void tcc_error(const char *fmt, ...); +PUB_FUNC void tcc_warning(const char *fmt, ...); + +/* other utilities */ +ST_FUNC void dynarray_add(void ***ptab, int *nb_ptr, void *data); +ST_FUNC void dynarray_reset(void *pp, int *n); +ST_FUNC void cstr_ccat(CString *cstr, int ch); +ST_FUNC void cstr_cat(CString *cstr, const char *str); +ST_FUNC void cstr_wccat(CString *cstr, int ch); +ST_FUNC void cstr_new(CString *cstr); +ST_FUNC void cstr_free(CString *cstr); +ST_FUNC void cstr_reset(CString *cstr); + +ST_FUNC Section *new_section(TCCState *s1, const char *name, int sh_type, int sh_flags); +ST_FUNC void section_realloc(Section *sec, unsigned long new_size); +ST_FUNC void *section_ptr_add(Section *sec, addr_t size); +ST_FUNC void section_reserve(Section *sec, unsigned long size); +ST_FUNC Section *find_section(TCCState *s1, const char *name); + +ST_FUNC void put_extern_sym2(Sym *sym, Section *section, addr_t value, unsigned long size, int can_add_underscore); +ST_FUNC void put_extern_sym(Sym *sym, Section *section, addr_t value, unsigned long size); +ST_FUNC void greloc(Section *s, Sym *sym, unsigned long offset, int type); +ST_FUNC void greloca(Section *s, Sym *sym, unsigned long offset, int type, addr_t addend); + +ST_INLN void sym_free(Sym *sym); +ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c); +ST_FUNC Sym *sym_find2(Sym *s, int v); +ST_FUNC Sym *sym_push(int v, CType *type, int r, int c); +ST_FUNC void sym_pop(Sym **ptop, Sym *b); +ST_INLN Sym *struct_find(int v); +ST_INLN Sym *sym_find(int v); +ST_FUNC Sym *global_identifier_push(int v, int t, int c); + +ST_FUNC void tcc_open_bf(TCCState *s1, const char *filename, int initlen); +ST_FUNC int tcc_open(TCCState *s1, const char *filename); +ST_FUNC void tcc_close(void); + +ST_FUNC int tcc_add_file_internal(TCCState *s1, const char *filename, int flags, int filetype); +ST_FUNC int tcc_add_crt(TCCState *s, const char *filename); + +#ifndef TCC_TARGET_PE +ST_FUNC int tcc_add_dll(TCCState *s, const char *filename, int flags); +#endif + +ST_FUNC void tcc_add_pragma_libs(TCCState *s1); +PUB_FUNC int tcc_add_library_err(TCCState *s, const char *f); + +PUB_FUNC void tcc_print_stats(TCCState *s, int64_t total_time); +PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv); +PUB_FUNC void tcc_set_environment(TCCState *s); + +/* ------------ tccpp.c ------------ */ + +ST_DATA struct BufferedFile *file; +ST_DATA int ch, tok; +ST_DATA CValue tokc; +ST_DATA const int *macro_ptr; +ST_DATA int parse_flags; +ST_DATA int tok_flags; +ST_DATA CString tokcstr; /* current parsed string, if any */ + +/* display benchmark infos */ +ST_DATA int total_lines; +ST_DATA int total_bytes; +ST_DATA int tok_ident; +ST_DATA TokenSym **table_ident; + +#define TOK_FLAG_BOL 0x0001 /* beginning of line before */ +#define TOK_FLAG_BOF 0x0002 /* beginning of file before */ +#define TOK_FLAG_ENDIF 0x0004 /* a endif was found matching starting #ifdef */ +#define TOK_FLAG_EOF 0x0008 /* end of file */ + +#define PARSE_FLAG_PREPROCESS 0x0001 /* activate preprocessing */ +#define PARSE_FLAG_TOK_NUM 0x0002 /* return numbers instead of TOK_PPNUM */ +#define PARSE_FLAG_LINEFEED 0x0004 /* line feed is returned as a + token. line feed is also + returned at eof */ +#define PARSE_FLAG_ASM_FILE 0x0008 /* we processing an asm file: '#' can be used for line comment, etc. */ +#define PARSE_FLAG_SPACES 0x0010 /* next() returns space tokens (for -E) */ +#define PARSE_FLAG_ACCEPT_STRAYS 0x0020 /* next() returns '\\' token */ +#define PARSE_FLAG_TOK_STR 0x0040 /* return parsed strings instead of TOK_PPSTR */ + +ST_FUNC TokenSym *tok_alloc(const char *str, int len); +ST_FUNC const char *get_tok_str(int v, CValue *cv); +ST_FUNC void begin_macro(TokenString *str, int alloc); +ST_FUNC void end_macro(void); +ST_FUNC void save_parse_state(ParseState *s); +ST_FUNC void restore_parse_state(ParseState *s); +ST_INLN void tok_str_new(TokenString *s); +ST_FUNC void tok_str_free(int *str); +ST_FUNC void tok_str_add(TokenString *s, int t); +ST_FUNC void tok_str_add_tok(TokenString *s); +ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg); +ST_FUNC void define_undef(Sym *s); +ST_INLN Sym *define_find(int v); +ST_FUNC void free_defines(Sym *b); +ST_FUNC void print_defines(void); +ST_FUNC Sym *label_find(int v); +ST_FUNC Sym *label_push(Sym **ptop, int v, int flags); +ST_FUNC void label_pop(Sym **ptop, Sym *slast); +ST_FUNC void parse_define(void); +ST_FUNC void preprocess(int is_bof); +ST_FUNC void next_nomacro(void); +ST_FUNC void next(void); +ST_INLN void unget_tok(int last_tok); +ST_FUNC void preprocess_init(TCCState *s1); +ST_FUNC void preprocess_new(void); +ST_FUNC void preprocess_delete(void); +ST_FUNC int tcc_preprocess(TCCState *s1); +ST_FUNC void skip(int c); +ST_FUNC NORETURN void expect(const char *msg); + +/* ------------ tccgen.c ------------ */ + +ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */ +ST_DATA Section *cur_text_section; /* current section where function code is generated */ +#ifdef CONFIG_TCC_ASM +ST_DATA Section *last_text_section; /* to handle .previous asm directive */ +#endif +#ifdef CONFIG_TCC_BCHECK +/* bound check related sections */ +ST_DATA Section *bounds_section; /* contains global data bound description */ +ST_DATA Section *lbounds_section; /* contains local data bound description */ +#endif +/* symbol sections */ +ST_DATA Section *symtab_section, *strtab_section; +/* debug sections */ +ST_DATA Section *stab_section, *stabstr_section; + +#define SYM_POOL_NB (8192 / sizeof(Sym)) +ST_DATA Sym *sym_free_first; +ST_DATA void **sym_pools; +ST_DATA int nb_sym_pools; + +ST_DATA Sym *global_stack; +ST_DATA Sym *local_stack; +ST_DATA Sym *local_label_stack; +ST_DATA Sym *global_label_stack; +ST_DATA Sym *define_stack; +ST_DATA CType char_pointer_type, func_old_type, int_type, size_type; +ST_DATA SValue __vstack[1+/*to make bcheck happy*/ VSTACK_SIZE], *vtop, *pvtop; +#define vstack (__vstack + 1) +ST_DATA int rsym, anon_sym, ind, loc; + +ST_DATA int const_wanted; /* true if constant wanted */ +ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */ +ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */ +ST_DATA CType func_vt; /* current function return type (used by return instruction) */ +ST_DATA int func_var; /* true if current function is variadic */ +ST_DATA int func_vc; +ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */ +ST_DATA const char *funcname; + +ST_FUNC void check_vstack(void); +ST_INLN int is_float(int t); +ST_FUNC int ieee_finite(double d); +ST_FUNC void test_lvalue(void); +ST_FUNC void swap(int *p, int *q); +ST_FUNC void vpushi(int v); +ST_FUNC Sym *external_global_sym(int v, CType *type, int r); +ST_FUNC void vset(CType *type, int r, int v); +ST_FUNC void vswap(void); +ST_FUNC void vpush_global_sym(CType *type, int v); +ST_FUNC void vrote(SValue *e, int n); +ST_FUNC void vrott(int n); +ST_FUNC void vrotb(int n); +#ifdef TCC_TARGET_ARM +ST_FUNC int get_reg_ex(int rc, int rc2); +ST_FUNC void lexpand_nr(void); +#endif +ST_FUNC void vpushv(SValue *v); +ST_FUNC void save_reg(int r); +ST_FUNC int get_reg(int rc); +ST_FUNC void save_regs(int n); +ST_FUNC void gaddrof(void); +ST_FUNC int gv(int rc); +ST_FUNC void gv2(int rc1, int rc2); +ST_FUNC void vpop(void); +ST_FUNC void gen_op(int op); +ST_FUNC int type_size(CType *type, int *a); +ST_FUNC void mk_pointer(CType *type); +ST_FUNC void vstore(void); +ST_FUNC void inc(int post, int c); +ST_FUNC void parse_asm_str(CString *astr); +ST_FUNC int lvalue_type(int t); +ST_FUNC void indir(void); +ST_FUNC void unary(void); +ST_FUNC void expr_prod(void); +ST_FUNC void expr_sum(void); +ST_FUNC void gexpr(void); +ST_FUNC int expr_const(void); +ST_FUNC void gen_inline_functions(void); +ST_FUNC void decl(int l); +#if defined CONFIG_TCC_BCHECK || defined TCC_TARGET_C67 +ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size); +#endif +#if defined TCC_TARGET_X86_64 && !defined TCC_TARGET_PE +ST_FUNC int classify_x86_64_va_arg(CType *ty); +#endif + +/* ------------ tccelf.c ------------ */ + +#define TCC_OUTPUT_FORMAT_ELF 0 /* default output format: ELF */ +#define TCC_OUTPUT_FORMAT_BINARY 1 /* binary image output */ +#define TCC_OUTPUT_FORMAT_COFF 2 /* COFF */ + +#define ARMAG "!\012" /* For COFF and a.out archives */ + +typedef struct { + unsigned int n_strx; /* index into string table of name */ + unsigned char n_type; /* type of symbol */ + unsigned char n_other; /* misc info (usually empty) */ + unsigned short n_desc; /* description field */ + unsigned int n_value; /* value of symbol */ +} Stab_Sym; + +ST_FUNC Section *new_symtab(TCCState *s1, const char *symtab_name, int sh_type, int sh_flags, const char *strtab_name, const char *hash_name, int hash_sh_flags); + +ST_FUNC int put_elf_str(Section *s, const char *sym); +ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int shndx, const char *name); +ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, int info, int other, int sh_num, const char *name); +ST_FUNC int find_elf_sym(Section *s, const char *name); +ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, int type, int symbol); +ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, int type, int symbol, addr_t addend); + +ST_FUNC void put_stabs(const char *str, int type, int other, int desc, unsigned long value); +ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, unsigned long value, Section *sec, int sym_index); +ST_FUNC void put_stabn(int type, int other, int desc, int value); +ST_FUNC void put_stabd(int type, int other, int desc); + +ST_FUNC void relocate_common_syms(void); +ST_FUNC void relocate_syms(TCCState *s1, int do_resolve); +ST_FUNC void relocate_section(TCCState *s1, Section *s); +ST_FUNC void relocate_plt(TCCState *s1); + +ST_FUNC void tcc_add_linker_symbols(TCCState *s1); +ST_FUNC int tcc_load_object_file(TCCState *s1, int fd, unsigned long file_offset); +ST_FUNC int tcc_load_archive(TCCState *s1, int fd); +ST_FUNC void tcc_add_bcheck(TCCState *s1); + +ST_FUNC void build_got_entries(TCCState *s1); +ST_FUNC void tcc_add_runtime(TCCState *s1); + +ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err); +#if defined TCC_IS_NATIVE || defined TCC_TARGET_PE +ST_FUNC void *tcc_get_symbol_err(TCCState *s, const char *name); +#endif + +#ifndef TCC_TARGET_PE +ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level); +ST_FUNC int tcc_load_ldscript(TCCState *s1); +ST_FUNC uint8_t *parse_comment(uint8_t *p); +ST_FUNC void minp(void); +ST_INLN void inp(void); +ST_FUNC int handle_eob(void); +#endif + +/* ------------ xxx-gen.c ------------ */ + +ST_DATA const int reg_classes[NB_REGS]; + +ST_FUNC void gsym_addr(int t, int a); +ST_FUNC void gsym(int t); +ST_FUNC void load(int r, SValue *sv); +ST_FUNC void store(int r, SValue *v); +ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *align, int *regsize); +ST_FUNC void gfunc_call(int nb_args); +ST_FUNC void gfunc_prolog(CType *func_type); +ST_FUNC void gfunc_epilog(void); +ST_FUNC int gjmp(int t); +ST_FUNC void gjmp_addr(int a); +ST_FUNC int gtst(int inv, int t); +ST_FUNC void gen_opi(int op); +ST_FUNC void gen_opf(int op); +ST_FUNC void gen_cvt_ftoi(int t); +ST_FUNC void gen_cvt_ftof(int t); +ST_FUNC void ggoto(void); +#ifndef TCC_TARGET_C67 +ST_FUNC void o(unsigned int c); +#endif +#ifndef TCC_TARGET_ARM +ST_FUNC void gen_cvt_itof(int t); +#endif +ST_FUNC void gen_vla_sp_save(int addr); +ST_FUNC void gen_vla_sp_restore(int addr); +ST_FUNC void gen_vla_alloc(CType *type, int align); + +/* ------------ i386-gen.c ------------ */ +#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 +ST_FUNC void g(int c); +ST_FUNC int oad(int c, int s); +ST_FUNC void gen_le16(int c); +ST_FUNC void gen_le32(int c); +ST_FUNC void gen_addr32(int r, Sym *sym, int c); +ST_FUNC void gen_addrpc32(int r, Sym *sym, int c); +#endif + +#ifdef CONFIG_TCC_BCHECK +ST_FUNC void gen_bounded_ptr_add(void); +ST_FUNC void gen_bounded_ptr_deref(void); +#endif + +/* ------------ x86_64-gen.c ------------ */ +#ifdef TCC_TARGET_X86_64 +ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c); +ST_FUNC void gen_opl(int op); +#endif + +/* ------------ arm-gen.c ------------ */ +#ifdef TCC_TARGET_ARM +#if defined(TCC_ARM_EABI) && !defined(CONFIG_TCC_ELFINTERP) +ST_FUNC char *default_elfinterp(struct TCCState *s); +#endif +ST_FUNC void arm_init(struct TCCState *s); +ST_FUNC uint32_t encbranch(int pos, int addr, int fail); +ST_FUNC void gen_cvt_itof1(int t); +#endif + +/* ------------ arm64-gen.c ------------ */ +#ifdef TCC_TARGET_ARM64 +ST_FUNC void gen_cvt_sxtw(void); +ST_FUNC void gen_opl(int op); +ST_FUNC void greturn(void); +ST_FUNC void gen_va_start(void); +ST_FUNC void gen_va_arg(CType *t); +ST_FUNC void gen_clear_cache(void); +#endif + +/* ------------ c67-gen.c ------------ */ +#ifdef TCC_TARGET_C67 +#endif + +/* ------------ tcccoff.c ------------ */ + +#ifdef TCC_TARGET_COFF +ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f); +ST_FUNC int tcc_load_coff(TCCState * s1, int fd); +#endif + +/* ------------ tccasm.c ------------ */ +ST_FUNC void asm_instr(void); +ST_FUNC void asm_global_instr(void); +#ifdef CONFIG_TCC_ASM +ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, const char *name, const char **pp); +ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe); +ST_FUNC int asm_int_expr(TCCState *s1); +ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess); +/* ------------ i386-asm.c ------------ */ +ST_FUNC void gen_expr32(ExprValue *pe); +ST_FUNC void asm_opcode(TCCState *s1, int opcode); +ST_FUNC void asm_compute_constraints(ASMOperand *operands, int nb_operands, int nb_outputs, const uint8_t *clobber_regs, int *pout_reg); +ST_FUNC void subst_asm_operand(CString *add_str, SValue *sv, int modifier); +ST_FUNC void asm_gen_code(ASMOperand *operands, int nb_operands, int nb_outputs, int is_output, uint8_t *clobber_regs, int out_reg); +ST_FUNC void asm_clobber(uint8_t *clobber_regs, const char *str); +#endif + +/* ------------ tccpe.c -------------- */ +#ifdef TCC_TARGET_PE +ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd); +ST_FUNC int pe_output_file(TCCState * s1, const char *filename); +ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value); +ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2); +#ifdef TCC_TARGET_X86_64 +ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack); +#endif +/* symbol properties stored in Elf32_Sym->st_other */ +# define ST_PE_EXPORT 0x10 +# define ST_PE_IMPORT 0x20 +# define ST_PE_STDCALL 0x40 +#endif + +/* ------------ tccrun.c ----------------- */ +#ifdef TCC_IS_NATIVE +#ifdef CONFIG_TCC_STATIC +#define RTLD_LAZY 0x001 +#define RTLD_NOW 0x002 +#define RTLD_GLOBAL 0x100 +#define RTLD_DEFAULT NULL +/* dummy function for profiling */ +ST_FUNC void *dlopen(const char *filename, int flag); +ST_FUNC void dlclose(void *p); +ST_FUNC const char *dlerror(void); +ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol); +#elif !defined _WIN32 +ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol); +#endif + +#ifdef CONFIG_TCC_BACKTRACE +ST_DATA int rt_num_callers; +ST_DATA const char **rt_bound_error_msg; +ST_DATA void *rt_prog_main; +ST_FUNC void tcc_set_num_callers(int n); +#endif +#endif + +/********************************************************/ +#undef ST_DATA +#ifdef ONE_SOURCE +#define ST_DATA static +#else +#define ST_DATA +#endif +/********************************************************/ +#endif /* _TCC_H */ diff --git a/external/TCC/tccasm.c b/external/TCC/tccasm.c new file mode 100644 index 00000000..fade2d10 --- /dev/null +++ b/external/TCC/tccasm.c @@ -0,0 +1,1138 @@ +/* + * GAS like assembler for TCC + * + * Copyright (c) 2001-2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" +#ifdef CONFIG_TCC_ASM + +ST_FUNC int asm_get_local_label_name(TCCState *s1, unsigned int n) +{ + char buf[64]; + TokenSym *ts; + + snprintf(buf, sizeof(buf), "L..%u", n); + ts = tok_alloc(buf, strlen(buf)); + return ts->tok; +} + +ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe); + +/* We do not use the C expression parser to handle symbols. Maybe the + C expression parser could be tweaked to do so. */ + +static void asm_expr_unary(TCCState *s1, ExprValue *pe) +{ + Sym *sym; + int op, n, label; + const char *p; + + switch(tok) { + case TOK_PPNUM: + p = tokc.str.data; + n = strtoul(p, (char **)&p, 0); + if (*p == 'b' || *p == 'f') { + /* backward or forward label */ + label = asm_get_local_label_name(s1, n); + sym = label_find(label); + if (*p == 'b') { + /* backward : find the last corresponding defined label */ + if (sym && sym->r == 0) + sym = sym->prev_tok; + if (!sym) + tcc_error("local label '%d' not found backward", n); + } else { + /* forward */ + if (!sym || sym->r) { + /* if the last label is defined, then define a new one */ + sym = label_push(&s1->asm_labels, label, 0); + sym->type.t = VT_STATIC | VT_VOID; + } + } + pe->v = 0; + pe->sym = sym; + } else if (*p == '\0') { + pe->v = n; + pe->sym = NULL; + } else { + tcc_error("invalid number syntax"); + } + next(); + break; + case '+': + next(); + asm_expr_unary(s1, pe); + break; + case '-': + case '~': + op = tok; + next(); + asm_expr_unary(s1, pe); + if (pe->sym) + tcc_error("invalid operation with label"); + if (op == '-') + pe->v = -pe->v; + else + pe->v = ~pe->v; + break; + case TOK_CCHAR: + case TOK_LCHAR: + pe->v = tokc.i; + pe->sym = NULL; + next(); + break; + case '(': + next(); + asm_expr(s1, pe); + skip(')'); + break; + default: + if (tok >= TOK_IDENT) { + /* label case : if the label was not found, add one */ + sym = label_find(tok); + if (!sym) { + sym = label_push(&s1->asm_labels, tok, 0); + /* NOTE: by default, the symbol is global */ + sym->type.t = VT_VOID; + } + if (sym->r == SHN_ABS) { + /* if absolute symbol, no need to put a symbol value */ + pe->v = sym->jnext; + pe->sym = NULL; + } else { + pe->v = 0; + pe->sym = sym; + } + next(); + } else { + tcc_error("bad expression syntax [%s]", get_tok_str(tok, &tokc)); + } + break; + } +} + +static void asm_expr_prod(TCCState *s1, ExprValue *pe) +{ + int op; + ExprValue e2; + + asm_expr_unary(s1, pe); + for(;;) { + op = tok; + if (op != '*' && op != '/' && op != '%' && + op != TOK_SHL && op != TOK_SAR) + break; + next(); + asm_expr_unary(s1, &e2); + if (pe->sym || e2.sym) + tcc_error("invalid operation with label"); + switch(op) { + case '*': + pe->v *= e2.v; + break; + case '/': + if (e2.v == 0) { + div_error: + tcc_error("division by zero"); + } + pe->v /= e2.v; + break; + case '%': + if (e2.v == 0) + goto div_error; + pe->v %= e2.v; + break; + case TOK_SHL: + pe->v <<= e2.v; + break; + default: + case TOK_SAR: + pe->v >>= e2.v; + break; + } + } +} + +static void asm_expr_logic(TCCState *s1, ExprValue *pe) +{ + int op; + ExprValue e2; + + asm_expr_prod(s1, pe); + for(;;) { + op = tok; + if (op != '&' && op != '|' && op != '^') + break; + next(); + asm_expr_prod(s1, &e2); + if (pe->sym || e2.sym) + tcc_error("invalid operation with label"); + switch(op) { + case '&': + pe->v &= e2.v; + break; + case '|': + pe->v |= e2.v; + break; + default: + case '^': + pe->v ^= e2.v; + break; + } + } +} + +static inline void asm_expr_sum(TCCState *s1, ExprValue *pe) +{ + int op; + ExprValue e2; + + asm_expr_logic(s1, pe); + for(;;) { + op = tok; + if (op != '+' && op != '-') + break; + next(); + asm_expr_logic(s1, &e2); + if (op == '+') { + if (pe->sym != NULL && e2.sym != NULL) + goto cannot_relocate; + pe->v += e2.v; + if (pe->sym == NULL && e2.sym != NULL) + pe->sym = e2.sym; + } else { + pe->v -= e2.v; + /* NOTE: we are less powerful than gas in that case + because we store only one symbol in the expression */ + if (!pe->sym && !e2.sym) { + /* OK */ + } else if (pe->sym && !e2.sym) { + /* OK */ + } else if (pe->sym && e2.sym) { + if (pe->sym == e2.sym) { + /* OK */ + } else if (pe->sym->r == e2.sym->r && pe->sym->r != 0) { + /* we also accept defined symbols in the same section */ + pe->v += pe->sym->jnext - e2.sym->jnext; + } else { + goto cannot_relocate; + } + pe->sym = NULL; /* same symbols can be subtracted to NULL */ + } else { + cannot_relocate: + tcc_error("invalid operation with label"); + } + } + } +} + +ST_FUNC void asm_expr(TCCState *s1, ExprValue *pe) +{ + asm_expr_sum(s1, pe); +} + +ST_FUNC int asm_int_expr(TCCState *s1) +{ + ExprValue e; + asm_expr(s1, &e); + if (e.sym) + expect("constant"); + return e.v; +} + +/* NOTE: the same name space as C labels is used to avoid using too + much memory when storing labels in TokenStrings */ +static void asm_new_label1(TCCState *s1, int label, int is_local, + int sh_num, int value) +{ + Sym *sym; + + sym = label_find(label); + if (sym) { + if (sym->r) { + /* the label is already defined */ + if (!is_local) { + tcc_error("assembler label '%s' already defined", + get_tok_str(label, NULL)); + } else { + /* redefinition of local labels is possible */ + goto new_label; + } + } + } else { + new_label: + sym = label_push(&s1->asm_labels, label, 0); + sym->type.t = VT_STATIC | VT_VOID; + } + sym->r = sh_num; + sym->jnext = value; +} + +static void asm_new_label(TCCState *s1, int label, int is_local) +{ + asm_new_label1(s1, label, is_local, cur_text_section->sh_num, ind); +} + +static void asm_free_labels(TCCState *st) +{ + Sym *s, *s1; + Section *sec; + + for(s = st->asm_labels; s != NULL; s = s1) { + s1 = s->prev; + /* define symbol value in object file */ + if (s->r) { + if (s->r == SHN_ABS) + sec = SECTION_ABS; + else + sec = st->sections[s->r]; + put_extern_sym2(s, sec, s->jnext, 0, 0); + } + /* remove label */ + table_ident[s->v - TOK_IDENT]->sym_label = NULL; + sym_free(s); + } + st->asm_labels = NULL; +} + +static void use_section1(TCCState *s1, Section *sec) +{ + cur_text_section->data_offset = ind; + cur_text_section = sec; + ind = cur_text_section->data_offset; +} + +static void use_section(TCCState *s1, const char *name) +{ + Section *sec; + sec = find_section(s1, name); + use_section1(s1, sec); +} + +static void asm_parse_directive(TCCState *s1) +{ + int n, offset, v, size, tok1; + Section *sec; + uint8_t *ptr; + + /* assembler directive */ + sec = cur_text_section; + switch(tok) { + case TOK_ASMDIR_align: + case TOK_ASMDIR_p2align: + case TOK_ASMDIR_skip: + case TOK_ASMDIR_space: + tok1 = tok; + next(); + n = asm_int_expr(s1); + if (tok1 == TOK_ASMDIR_p2align) + { + if (n < 0 || n > 30) + tcc_error("invalid p2align, must be between 0 and 30"); + n = 1 << n; + tok1 = TOK_ASMDIR_align; + } + if (tok1 == TOK_ASMDIR_align) { + if (n < 0 || (n & (n-1)) != 0) + tcc_error("alignment must be a positive power of two"); + offset = (ind + n - 1) & -n; + size = offset - ind; + /* the section must have a compatible alignment */ + if (sec->sh_addralign < n) + sec->sh_addralign = n; + } else { + size = n; + } + v = 0; + if (tok == ',') { + next(); + v = asm_int_expr(s1); + } + zero_pad: + if (sec->sh_type != SHT_NOBITS) { + sec->data_offset = ind; + ptr = section_ptr_add(sec, size); + memset(ptr, v, size); + } + ind += size; + break; + case TOK_ASMDIR_quad: + next(); + for(;;) { + uint64_t vl; + const char *p; + + p = tokc.str.data; + if (tok != TOK_PPNUM) { + error_constant: + tcc_error("64 bit constant"); + } + vl = strtoll(p, (char **)&p, 0); + if (*p != '\0') + goto error_constant; + next(); + if (sec->sh_type != SHT_NOBITS) { + /* XXX: endianness */ + gen_le32(vl); + gen_le32(vl >> 32); + } else { + ind += 8; + } + if (tok != ',') + break; + next(); + } + break; + case TOK_ASMDIR_byte: + size = 1; + goto asm_data; + case TOK_ASMDIR_word: + case TOK_ASMDIR_short: + size = 2; + goto asm_data; + case TOK_ASMDIR_long: + case TOK_ASMDIR_int: + size = 4; + asm_data: + next(); + for(;;) { + ExprValue e; + asm_expr(s1, &e); + if (sec->sh_type != SHT_NOBITS) { + if (size == 4) { + gen_expr32(&e); + } else { + if (e.sym) + expect("constant"); + if (size == 1) + g(e.v); + else + gen_le16(e.v); + } + } else { + ind += size; + } + if (tok != ',') + break; + next(); + } + break; + case TOK_ASMDIR_fill: + { + int repeat, size, val, i, j; + uint8_t repeat_buf[8]; + next(); + repeat = asm_int_expr(s1); + if (repeat < 0) { + tcc_error("repeat < 0; .fill ignored"); + break; + } + size = 1; + val = 0; + if (tok == ',') { + next(); + size = asm_int_expr(s1); + if (size < 0) { + tcc_error("size < 0; .fill ignored"); + break; + } + if (size > 8) + size = 8; + if (tok == ',') { + next(); + val = asm_int_expr(s1); + } + } + /* XXX: endianness */ + repeat_buf[0] = val; + repeat_buf[1] = val >> 8; + repeat_buf[2] = val >> 16; + repeat_buf[3] = val >> 24; + repeat_buf[4] = 0; + repeat_buf[5] = 0; + repeat_buf[6] = 0; + repeat_buf[7] = 0; + for(i = 0; i < repeat; i++) { + for(j = 0; j < size; j++) { + g(repeat_buf[j]); + } + } + } + break; + case TOK_ASMDIR_org: + { + unsigned long n; + next(); + /* XXX: handle section symbols too */ + n = asm_int_expr(s1); + if (n < ind) + tcc_error("attempt to .org backwards"); + v = 0; + size = n - ind; + goto zero_pad; + } + break; + case TOK_ASMDIR_globl: + case TOK_ASMDIR_global: + case TOK_ASMDIR_weak: + case TOK_ASMDIR_hidden: + tok1 = tok; + do { + Sym *sym; + + next(); + sym = label_find(tok); + if (!sym) { + sym = label_push(&s1->asm_labels, tok, 0); + sym->type.t = VT_VOID; + } + if (tok1 != TOK_ASMDIR_hidden) + sym->type.t &= ~VT_STATIC; + if (tok1 == TOK_ASMDIR_weak) + sym->type.t |= VT_WEAK; + else if (tok1 == TOK_ASMDIR_hidden) + sym->type.t |= STV_HIDDEN << VT_VIS_SHIFT; + next(); + } while (tok == ','); + break; + case TOK_ASMDIR_string: + case TOK_ASMDIR_ascii: + case TOK_ASMDIR_asciz: + { + const uint8_t *p; + int i, size, t; + + t = tok; + next(); + for(;;) { + if (tok != TOK_STR) + expect("string constant"); + p = tokc.str.data; + size = tokc.str.size; + if (t == TOK_ASMDIR_ascii && size > 0) + size--; + for(i = 0; i < size; i++) + g(p[i]); + next(); + if (tok == ',') { + next(); + } else if (tok != TOK_STR) { + break; + } + } + } + break; + case TOK_ASMDIR_text: + case TOK_ASMDIR_data: + case TOK_ASMDIR_bss: + { + char sname[64]; + tok1 = tok; + n = 0; + next(); + if (tok != ';' && tok != TOK_LINEFEED) { + n = asm_int_expr(s1); + next(); + } + if (n) + sprintf(sname, ".%s%d", get_tok_str(tok1, NULL), n); + else + sprintf(sname, ".%s", get_tok_str(tok1, NULL)); + use_section(s1, sname); + } + break; + case TOK_ASMDIR_file: + { + char filename[512]; + + filename[0] = '\0'; + next(); + + if (tok == TOK_STR) + pstrcat(filename, sizeof(filename), tokc.str.data); + else + pstrcat(filename, sizeof(filename), get_tok_str(tok, NULL)); + + if (s1->warn_unsupported) + tcc_warning("ignoring .file %s", filename); + + next(); + } + break; + case TOK_ASMDIR_ident: + { + char ident[256]; + + ident[0] = '\0'; + next(); + + if (tok == TOK_STR) + pstrcat(ident, sizeof(ident), tokc.str.data); + else + pstrcat(ident, sizeof(ident), get_tok_str(tok, NULL)); + + if (s1->warn_unsupported) + tcc_warning("ignoring .ident %s", ident); + + next(); + } + break; + case TOK_ASMDIR_size: + { + Sym *sym; + + next(); + sym = label_find(tok); + if (!sym) { + tcc_error("label not found: %s", get_tok_str(tok, NULL)); + } + + /* XXX .size name,label2-label1 */ + if (s1->warn_unsupported) + tcc_warning("ignoring .size %s,*", get_tok_str(tok, NULL)); + + next(); + skip(','); + while (tok != '\n' && tok != CH_EOF) { + next(); + } + } + break; + case TOK_ASMDIR_type: + { + Sym *sym; + const char *newtype; + + next(); + sym = label_find(tok); + if (!sym) { + sym = label_push(&s1->asm_labels, tok, 0); + sym->type.t = VT_VOID; + } + + next(); + skip(','); + if (tok == TOK_STR) { + newtype = tokc.str.data; + } else { + if (tok == '@' || tok == '%') + next(); + newtype = get_tok_str(tok, NULL); + } + + if (!strcmp(newtype, "function") || !strcmp(newtype, "STT_FUNC")) { + sym->type.t = (sym->type.t & ~VT_BTYPE) | VT_FUNC; + } + else if (s1->warn_unsupported) + tcc_warning("change type of '%s' from 0x%x to '%s' ignored", + get_tok_str(sym->v, NULL), sym->type.t, newtype); + + next(); + } + break; + case TOK_ASMDIR_section: + { + char sname[256]; + + /* XXX: support more options */ + next(); + sname[0] = '\0'; + while (tok != ';' && tok != TOK_LINEFEED && tok != ',') { + if (tok == TOK_STR) + pstrcat(sname, sizeof(sname), tokc.str.data); + else + pstrcat(sname, sizeof(sname), get_tok_str(tok, NULL)); + next(); + } + if (tok == ',') { + /* skip section options */ + next(); + if (tok != TOK_STR) + expect("string constant"); + next(); + if (tok == ',') { + next(); + if (tok == '@' || tok == '%') + next(); + next(); + } + } + last_text_section = cur_text_section; + use_section(s1, sname); + } + break; + case TOK_ASMDIR_previous: + { + Section *sec; + next(); + if (!last_text_section) + tcc_error("no previous section referenced"); + sec = cur_text_section; + use_section1(s1, last_text_section); + last_text_section = sec; + } + break; +#ifdef TCC_TARGET_I386 + case TOK_ASMDIR_code16: + { + next(); + s1->seg_size = 16; + } + break; + case TOK_ASMDIR_code32: + { + next(); + s1->seg_size = 32; + } + break; +#endif +#ifdef TCC_TARGET_X86_64 + /* added for compatibility with GAS */ + case TOK_ASMDIR_code64: + next(); + break; +#endif + default: + tcc_error("unknown assembler directive '.%s'", get_tok_str(tok, NULL)); + break; + } +} + + +/* assemble a file */ +static int tcc_assemble_internal(TCCState *s1, int do_preprocess) +{ + int opcode; + +#if 0 + /* print stats about opcodes */ + { + const ASMInstr *pa; + int freq[4]; + int op_vals[500]; + int nb_op_vals, i, j; + + nb_op_vals = 0; + memset(freq, 0, sizeof(freq)); + for(pa = asm_instrs; pa->sym != 0; pa++) { + freq[pa->nb_ops]++; + for(i=0;inb_ops;i++) { + for(j=0;jop_type[i] == op_vals[j]) + goto found; + } + op_vals[nb_op_vals++] = pa->op_type[i]; + found: ; + } + } + for(i=0;ibuf_ptr[0]; + tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF; + parse_flags = PARSE_FLAG_ASM_FILE | PARSE_FLAG_TOK_STR; + if (do_preprocess) + parse_flags |= PARSE_FLAG_PREPROCESS; + next(); + for(;;) { + if (tok == TOK_EOF) + break; + parse_flags |= PARSE_FLAG_LINEFEED; /* XXX: suppress that hack */ + redo: + if (tok == '#') { + /* horrible gas comment */ + while (tok != TOK_LINEFEED) + next(); + } else if (tok >= TOK_ASMDIR_FIRST && tok <= TOK_ASMDIR_LAST) { + asm_parse_directive(s1); + } else if (tok == TOK_PPNUM) { + const char *p; + int n; + p = tokc.str.data; + n = strtoul(p, (char **)&p, 10); + if (*p != '\0') + expect("':'"); + /* new local label */ + asm_new_label(s1, asm_get_local_label_name(s1, n), 1); + next(); + skip(':'); + goto redo; + } else if (tok >= TOK_IDENT) { + /* instruction or label */ + opcode = tok; + next(); + if (tok == ':') { + /* new label */ + asm_new_label(s1, opcode, 0); + next(); + goto redo; + } else if (tok == '=') { + int n; + next(); + n = asm_int_expr(s1); + asm_new_label1(s1, opcode, 0, SHN_ABS, n); + goto redo; + } else { + asm_opcode(s1, opcode); + } + } + /* end of line */ + if (tok != ';' && tok != TOK_LINEFEED){ + expect("end of line"); + } + parse_flags &= ~PARSE_FLAG_LINEFEED; /* XXX: suppress that hack */ + next(); + } + + asm_free_labels(s1); + + return 0; +} + +/* Assemble the current file */ +ST_FUNC int tcc_assemble(TCCState *s1, int do_preprocess) +{ + Sym *define_start; + int ret; + + preprocess_init(s1); + + /* default section is text */ + cur_text_section = text_section; + ind = cur_text_section->data_offset; + + define_start = define_stack; + + /* an elf symbol of type STT_FILE must be put so that STB_LOCAL + symbols can be safely used */ + put_elf_sym(symtab_section, 0, 0, + ELFW(ST_INFO)(STB_LOCAL, STT_FILE), 0, + SHN_ABS, file->filename); + + ret = tcc_assemble_internal(s1, do_preprocess); + + cur_text_section->data_offset = ind; + + free_defines(define_start); + + return ret; +} + +/********************************************************************/ +/* GCC inline asm support */ + +/* assemble the string 'str' in the current C compilation unit without + C preprocessing. NOTE: str is modified by modifying the '\0' at the + end */ +static void tcc_assemble_inline(TCCState *s1, char *str, int len) +{ + int saved_parse_flags; + const int *saved_macro_ptr; + + saved_parse_flags = parse_flags; + saved_macro_ptr = macro_ptr; + + tcc_open_bf(s1, ":asm:", len); + memcpy(file->buffer, str, len); + + macro_ptr = NULL; + tcc_assemble_internal(s1, 0); + tcc_close(); + + parse_flags = saved_parse_flags; + macro_ptr = saved_macro_ptr; +} + +/* find a constraint by its number or id (gcc 3 extended + syntax). return -1 if not found. Return in *pp in char after the + constraint */ +ST_FUNC int find_constraint(ASMOperand *operands, int nb_operands, + const char *name, const char **pp) +{ + int index; + TokenSym *ts; + const char *p; + + if (isnum(*name)) { + index = 0; + while (isnum(*name)) { + index = (index * 10) + (*name) - '0'; + name++; + } + if ((unsigned)index >= nb_operands) + index = -1; + } else if (*name == '[') { + name++; + p = strchr(name, ']'); + if (p) { + ts = tok_alloc(name, p - name); + for(index = 0; index < nb_operands; index++) { + if (operands[index].id == ts->tok) + goto found; + } + index = -1; + found: + name = p + 1; + } else { + index = -1; + } + } else { + index = -1; + } + if (pp) + *pp = name; + return index; +} + +static void subst_asm_operands(ASMOperand *operands, int nb_operands, + int nb_outputs, + CString *out_str, CString *in_str) +{ + int c, index, modifier; + const char *str; + ASMOperand *op; + SValue sv; + + cstr_new(out_str); + str = in_str->data; + for(;;) { + c = *str++; + if (c == '%') { + if (*str == '%') { + str++; + goto add_char; + } + modifier = 0; + if (*str == 'c' || *str == 'n' || + *str == 'b' || *str == 'w' || *str == 'h') + modifier = *str++; + index = find_constraint(operands, nb_operands, str, &str); + if (index < 0) + tcc_error("invalid operand reference after %%"); + op = &operands[index]; + sv = *op->vt; + if (op->reg >= 0) { + sv.r = op->reg; + if ((op->vt->r & VT_VALMASK) == VT_LLOCAL && op->is_memory) + sv.r |= VT_LVAL; + } + subst_asm_operand(out_str, &sv, modifier); + } else { + add_char: + cstr_ccat(out_str, c); + if (c == '\0') + break; + } + } +} + + +static void parse_asm_operands(ASMOperand *operands, int *nb_operands_ptr, + int is_output) +{ + ASMOperand *op; + int nb_operands; + + if (tok != ':') { + nb_operands = *nb_operands_ptr; + for(;;) { + if (nb_operands >= MAX_ASM_OPERANDS) + tcc_error("too many asm operands"); + op = &operands[nb_operands++]; + op->id = 0; + if (tok == '[') { + next(); + if (tok < TOK_IDENT) + expect("identifier"); + op->id = tok; + next(); + skip(']'); + } + if (tok != TOK_STR) + expect("string constant"); + op->constraint = tcc_malloc(tokc.str.size); + strcpy(op->constraint, tokc.str.data); + next(); + skip('('); + gexpr(); + if (is_output) { + test_lvalue(); + } else { + /* we want to avoid LLOCAL case, except when the 'm' + constraint is used. Note that it may come from + register storage, so we need to convert (reg) + case */ + if ((vtop->r & VT_LVAL) && + ((vtop->r & VT_VALMASK) == VT_LLOCAL || + (vtop->r & VT_VALMASK) < VT_CONST) && + !strchr(op->constraint, 'm')) { + gv(RC_INT); + } + } + op->vt = vtop; + skip(')'); + if (tok == ',') { + next(); + } else { + break; + } + } + *nb_operands_ptr = nb_operands; + } +} + +/* parse the GCC asm() instruction */ +ST_FUNC void asm_instr(void) +{ + CString astr, astr1; + ASMOperand operands[MAX_ASM_OPERANDS]; + int nb_outputs, nb_operands, i, must_subst, out_reg; + uint8_t clobber_regs[NB_ASM_REGS]; + + next(); + /* since we always generate the asm() instruction, we can ignore + volatile */ + if (tok == TOK_VOLATILE1 || tok == TOK_VOLATILE2 || tok == TOK_VOLATILE3) { + next(); + } + parse_asm_str(&astr); + nb_operands = 0; + nb_outputs = 0; + must_subst = 0; + memset(clobber_regs, 0, sizeof(clobber_regs)); + if (tok == ':') { + next(); + must_subst = 1; + /* output args */ + parse_asm_operands(operands, &nb_operands, 1); + nb_outputs = nb_operands; + if (tok == ':') { + next(); + if (tok != ')') { + /* input args */ + parse_asm_operands(operands, &nb_operands, 0); + if (tok == ':') { + /* clobber list */ + /* XXX: handle registers */ + next(); + for(;;) { + if (tok != TOK_STR) + expect("string constant"); + asm_clobber(clobber_regs, tokc.str.data); + next(); + if (tok == ',') { + next(); + } else { + break; + } + } + } + } + } + } + skip(')'); + /* NOTE: we do not eat the ';' so that we can restore the current + token after the assembler parsing */ + if (tok != ';') + expect("';'"); + + /* save all values in the memory */ + save_regs(0); + + /* compute constraints */ + asm_compute_constraints(operands, nb_operands, nb_outputs, + clobber_regs, &out_reg); + + /* substitute the operands in the asm string. No substitution is + done if no operands (GCC behaviour) */ +#ifdef ASM_DEBUG + printf("asm: \"%s\"\n", (char *)astr.data); +#endif + if (must_subst) { + subst_asm_operands(operands, nb_operands, nb_outputs, &astr1, &astr); + cstr_free(&astr); + } else { + astr1 = astr; + } +#ifdef ASM_DEBUG + printf("subst_asm: \"%s\"\n", (char *)astr1.data); +#endif + + /* generate loads */ + asm_gen_code(operands, nb_operands, nb_outputs, 0, + clobber_regs, out_reg); + + /* assemble the string with tcc internal assembler */ + tcc_assemble_inline(tcc_state, astr1.data, astr1.size - 1); + + /* restore the current C token */ + next(); + + /* store the output values if needed */ + asm_gen_code(operands, nb_operands, nb_outputs, 1, + clobber_regs, out_reg); + + /* free everything */ + for(i=0;iconstraint); + vpop(); + } + cstr_free(&astr1); +} + +ST_FUNC void asm_global_instr(void) +{ + CString astr; + + next(); + parse_asm_str(&astr); + skip(')'); + /* NOTE: we do not eat the ';' so that we can restore the current + token after the assembler parsing */ + if (tok != ';') + expect("';'"); + +#ifdef ASM_DEBUG + printf("asm_global: \"%s\"\n", (char *)astr.data); +#endif + cur_text_section = text_section; + ind = cur_text_section->data_offset; + + /* assemble the string with tcc internal assembler */ + tcc_assemble_inline(tcc_state, astr.data, astr.size - 1); + + cur_text_section->data_offset = ind; + + /* restore the current C token */ + next(); + + cstr_free(&astr); +} +#endif /* CONFIG_TCC_ASM */ diff --git a/external/TCC/tcccoff.c b/external/TCC/tcccoff.c new file mode 100644 index 00000000..1421ca26 --- /dev/null +++ b/external/TCC/tcccoff.c @@ -0,0 +1,948 @@ +/* + * COFF file handling for TCC + * + * Copyright (c) 2003, 2004 TK + * Copyright (c) 2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" + +#define MAXNSCNS 255 /* MAXIMUM NUMBER OF SECTIONS */ +#define MAX_STR_TABLE 1000000 +AOUTHDR o_filehdr; /* OPTIONAL (A.OUT) FILE HEADER */ + +SCNHDR section_header[MAXNSCNS]; + +#define MAX_FUNCS 1000 +#define MAX_FUNC_NAME_LENGTH 128 + +int nFuncs; +char Func[MAX_FUNCS][MAX_FUNC_NAME_LENGTH]; +char AssociatedFile[MAX_FUNCS][MAX_FUNC_NAME_LENGTH]; +int LineNoFilePtr[MAX_FUNCS]; +int EndAddress[MAX_FUNCS]; +int LastLineNo[MAX_FUNCS]; +int FuncEntries[MAX_FUNCS]; + +int OutputTheSection(Section * sect); +short int GetCoffFlags(const char *s); +void SortSymbolTable(void); +Section *FindSection(TCCState * s1, const char *sname); + +int C67_main_entry_point; + +int FindCoffSymbolIndex(const char *func_name); +int nb_syms; + +typedef struct { + long tag; + long size; + long fileptr; + long nextsym; + short int dummy; +} AUXFUNC; + +typedef struct { + long regmask; + unsigned short lineno; + unsigned short nentries; + int localframe; + int nextentry; + short int dummy; +} AUXBF; + +typedef struct { + long dummy; + unsigned short lineno; + unsigned short dummy1; + int dummy2; + int dummy3; + unsigned short dummy4; +} AUXEF; + +ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f) +{ + Section *tcc_sect; + SCNHDR *coff_sec; + int file_pointer; + char *Coff_str_table, *pCoff_str_table; + int CoffTextSectionNo, coff_nb_syms; + FILHDR file_hdr; /* FILE HEADER STRUCTURE */ + Section *stext, *sdata, *sbss; + int i, NSectionsToOutput = 0; + + Coff_str_table = pCoff_str_table = NULL; + + stext = FindSection(s1, ".text"); + sdata = FindSection(s1, ".data"); + sbss = FindSection(s1, ".bss"); + + nb_syms = symtab_section->data_offset / sizeof(Elf32_Sym); + coff_nb_syms = FindCoffSymbolIndex("XXXXXXXXXX1"); + + file_hdr.f_magic = COFF_C67_MAGIC; /* magic number */ + file_hdr.f_timdat = 0; /* time & date stamp */ + file_hdr.f_opthdr = sizeof(AOUTHDR); /* sizeof(optional hdr) */ + file_hdr.f_flags = 0x1143; /* flags (copied from what code composer does) */ + file_hdr.f_TargetID = 0x99; /* for C6x = 0x0099 */ + + o_filehdr.magic = 0x0108; /* see magic.h */ + o_filehdr.vstamp = 0x0190; /* version stamp */ + o_filehdr.tsize = stext->data_offset; /* text size in bytes, padded to FW bdry */ + o_filehdr.dsize = sdata->data_offset; /* initialized data " " */ + o_filehdr.bsize = sbss->data_offset; /* uninitialized data " " */ + o_filehdr.entrypt = C67_main_entry_point; /* entry pt. */ + o_filehdr.text_start = stext->sh_addr; /* base of text used for this file */ + o_filehdr.data_start = sdata->sh_addr; /* base of data used for this file */ + + + // create all the section headers + + file_pointer = FILHSZ + sizeof(AOUTHDR); + + CoffTextSectionNo = -1; + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + NSectionsToOutput++; + + if (CoffTextSectionNo == -1 && tcc_sect == stext) + CoffTextSectionNo = NSectionsToOutput; // rem which coff sect number the .text sect is + + strcpy(coff_sec->s_name, tcc_sect->name); /* section name */ + + coff_sec->s_paddr = tcc_sect->sh_addr; /* physical address */ + coff_sec->s_vaddr = tcc_sect->sh_addr; /* virtual address */ + coff_sec->s_size = tcc_sect->data_offset; /* section size */ + coff_sec->s_scnptr = 0; /* file ptr to raw data for section */ + coff_sec->s_relptr = 0; /* file ptr to relocation */ + coff_sec->s_lnnoptr = 0; /* file ptr to line numbers */ + coff_sec->s_nreloc = 0; /* number of relocation entries */ + coff_sec->s_flags = GetCoffFlags(coff_sec->s_name); /* flags */ + coff_sec->s_reserved = 0; /* reserved byte */ + coff_sec->s_page = 0; /* memory page id */ + + file_pointer += sizeof(SCNHDR); + } + } + + file_hdr.f_nscns = NSectionsToOutput; /* number of sections */ + + // now loop through and determine file pointer locations + // for the raw data + + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + // put raw data + coff_sec->s_scnptr = file_pointer; /* file ptr to raw data for section */ + file_pointer += coff_sec->s_size; + } + } + + // now loop through and determine file pointer locations + // for the relocation data + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + // put relocations data + if (coff_sec->s_nreloc > 0) { + coff_sec->s_relptr = file_pointer; /* file ptr to relocation */ + file_pointer += coff_sec->s_nreloc * sizeof(struct reloc); + } + } + } + + // now loop through and determine file pointer locations + // for the line number data + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + coff_sec->s_nlnno = 0; + coff_sec->s_lnnoptr = 0; + + if (s1->do_debug && tcc_sect == stext) { + // count how many line nos data + + // also find association between source file name and function + // so we can sort the symbol table + + + Stab_Sym *sym, *sym_end; + char func_name[MAX_FUNC_NAME_LENGTH], + last_func_name[MAX_FUNC_NAME_LENGTH]; + unsigned long func_addr, last_pc, pc; + const char *incl_files[INCLUDE_STACK_SIZE]; + int incl_index, len, last_line_num; + const char *str, *p; + + coff_sec->s_lnnoptr = file_pointer; /* file ptr to linno */ + + + func_name[0] = '\0'; + func_addr = 0; + incl_index = 0; + last_func_name[0] = '\0'; + last_pc = 0xffffffff; + last_line_num = 1; + sym = (Stab_Sym *) stab_section->data + 1; + sym_end = + (Stab_Sym *) (stab_section->data + + stab_section->data_offset); + + nFuncs = 0; + while (sym < sym_end) { + switch (sym->n_type) { + /* function start or end */ + case N_FUN: + if (sym->n_strx == 0) { + // end of function + + coff_sec->s_nlnno++; + file_pointer += LINESZ; + + pc = sym->n_value + func_addr; + func_name[0] = '\0'; + func_addr = 0; + EndAddress[nFuncs] = pc; + FuncEntries[nFuncs] = + (file_pointer - + LineNoFilePtr[nFuncs]) / LINESZ - 1; + LastLineNo[nFuncs++] = last_line_num + 1; + } else { + // beginning of function + + LineNoFilePtr[nFuncs] = file_pointer; + coff_sec->s_nlnno++; + file_pointer += LINESZ; + + str = + (const char *) stabstr_section->data + + sym->n_strx; + + p = strchr(str, ':'); + if (!p) { + pstrcpy(func_name, sizeof(func_name), str); + pstrcpy(Func[nFuncs], sizeof(func_name), str); + } else { + len = p - str; + if (len > sizeof(func_name) - 1) + len = sizeof(func_name) - 1; + memcpy(func_name, str, len); + memcpy(Func[nFuncs], str, len); + func_name[len] = '\0'; + } + + // save the file that it came in so we can sort later + pstrcpy(AssociatedFile[nFuncs], sizeof(func_name), + incl_files[incl_index - 1]); + + func_addr = sym->n_value; + } + break; + + /* line number info */ + case N_SLINE: + pc = sym->n_value + func_addr; + + last_pc = pc; + last_line_num = sym->n_desc; + + /* XXX: slow! */ + strcpy(last_func_name, func_name); + + coff_sec->s_nlnno++; + file_pointer += LINESZ; + break; + /* include files */ + case N_BINCL: + str = + (const char *) stabstr_section->data + sym->n_strx; + add_incl: + if (incl_index < INCLUDE_STACK_SIZE) { + incl_files[incl_index++] = str; + } + break; + case N_EINCL: + if (incl_index > 1) + incl_index--; + break; + case N_SO: + if (sym->n_strx == 0) { + incl_index = 0; /* end of translation unit */ + } else { + str = + (const char *) stabstr_section->data + + sym->n_strx; + /* do not add path */ + len = strlen(str); + if (len > 0 && str[len - 1] != '/') + goto add_incl; + } + break; + } + sym++; + } + } + + } + + file_hdr.f_symptr = file_pointer; /* file pointer to symtab */ + + if (s1->do_debug) + file_hdr.f_nsyms = coff_nb_syms; /* number of symtab entries */ + else + file_hdr.f_nsyms = 0; + + file_pointer += file_hdr.f_nsyms * SYMNMLEN; + + // OK now we are all set to write the file + + + fwrite(&file_hdr, FILHSZ, 1, f); + fwrite(&o_filehdr, sizeof(o_filehdr), 1, f); + + // write section headers + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + fwrite(coff_sec, sizeof(SCNHDR), 1, f); + } + } + + // write raw data + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + fwrite(tcc_sect->data, tcc_sect->data_offset, 1, f); + } + } + + // write relocation data + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (OutputTheSection(tcc_sect)) { + // put relocations data + if (coff_sec->s_nreloc > 0) { + fwrite(tcc_sect->reloc, + coff_sec->s_nreloc * sizeof(struct reloc), 1, f); + } + } + } + + + // group the symbols in order of filename, func1, func2, etc + // finally global symbols + + if (s1->do_debug) + SortSymbolTable(); + + // write line no data + + for (i = 1; i < s1->nb_sections; i++) { + coff_sec = §ion_header[i]; + tcc_sect = s1->sections[i]; + + if (s1->do_debug && tcc_sect == stext) { + // count how many line nos data + + + Stab_Sym *sym, *sym_end; + char func_name[128], last_func_name[128]; + unsigned long func_addr, last_pc, pc; + const char *incl_files[INCLUDE_STACK_SIZE]; + int incl_index, len, last_line_num; + const char *str, *p; + + LINENO CoffLineNo; + + func_name[0] = '\0'; + func_addr = 0; + incl_index = 0; + last_func_name[0] = '\0'; + last_pc = 0; + last_line_num = 1; + sym = (Stab_Sym *) stab_section->data + 1; + sym_end = + (Stab_Sym *) (stab_section->data + + stab_section->data_offset); + + while (sym < sym_end) { + switch (sym->n_type) { + /* function start or end */ + case N_FUN: + if (sym->n_strx == 0) { + // end of function + + CoffLineNo.l_addr.l_paddr = last_pc; + CoffLineNo.l_lnno = last_line_num + 1; + fwrite(&CoffLineNo, 6, 1, f); + + pc = sym->n_value + func_addr; + func_name[0] = '\0'; + func_addr = 0; + } else { + // beginning of function + + str = + (const char *) stabstr_section->data + + sym->n_strx; + + + p = strchr(str, ':'); + if (!p) { + pstrcpy(func_name, sizeof(func_name), str); + } else { + len = p - str; + if (len > sizeof(func_name) - 1) + len = sizeof(func_name) - 1; + memcpy(func_name, str, len); + func_name[len] = '\0'; + } + func_addr = sym->n_value; + last_pc = func_addr; + last_line_num = -1; + + // output a function begin + + CoffLineNo.l_addr.l_symndx = + FindCoffSymbolIndex(func_name); + CoffLineNo.l_lnno = 0; + + fwrite(&CoffLineNo, 6, 1, f); + } + break; + + /* line number info */ + case N_SLINE: + pc = sym->n_value + func_addr; + + + /* XXX: slow! */ + strcpy(last_func_name, func_name); + + // output a line reference + + CoffLineNo.l_addr.l_paddr = last_pc; + + if (last_line_num == -1) { + CoffLineNo.l_lnno = sym->n_desc; + } else { + CoffLineNo.l_lnno = last_line_num + 1; + } + + fwrite(&CoffLineNo, 6, 1, f); + + last_pc = pc; + last_line_num = sym->n_desc; + + break; + + /* include files */ + case N_BINCL: + str = + (const char *) stabstr_section->data + sym->n_strx; + add_incl2: + if (incl_index < INCLUDE_STACK_SIZE) { + incl_files[incl_index++] = str; + } + break; + case N_EINCL: + if (incl_index > 1) + incl_index--; + break; + case N_SO: + if (sym->n_strx == 0) { + incl_index = 0; /* end of translation unit */ + } else { + str = + (const char *) stabstr_section->data + + sym->n_strx; + /* do not add path */ + len = strlen(str); + if (len > 0 && str[len - 1] != '/') + goto add_incl2; + } + break; + } + sym++; + } + } + } + + // write symbol table + if (s1->do_debug) { + int k; + struct syment csym; + AUXFUNC auxfunc; + AUXBF auxbf; + AUXEF auxef; + int i; + Elf32_Sym *p; + const char *name; + int nstr; + int n = 0; + + Coff_str_table = (char *) tcc_malloc(MAX_STR_TABLE); + pCoff_str_table = Coff_str_table; + nstr = 0; + + p = (Elf32_Sym *) symtab_section->data; + + + for (i = 0; i < nb_syms; i++) { + + name = symtab_section->link->data + p->st_name; + + for (k = 0; k < 8; k++) + csym._n._n_name[k] = 0; + + if (strlen(name) <= 8) { + strcpy(csym._n._n_name, name); + } else { + if (pCoff_str_table - Coff_str_table + strlen(name) > + MAX_STR_TABLE - 1) + tcc_error("String table too large"); + + csym._n._n_n._n_zeroes = 0; + csym._n._n_n._n_offset = + pCoff_str_table - Coff_str_table + 4; + + strcpy(pCoff_str_table, name); + pCoff_str_table += strlen(name) + 1; // skip over null + nstr++; + } + + if (p->st_info == 4) { + // put a filename symbol + csym.n_value = 33; // ????? + csym.n_scnum = N_DEBUG; + csym.n_type = 0; + csym.n_sclass = C_FILE; + csym.n_numaux = 0; + fwrite(&csym, 18, 1, f); + n++; + + } else if (p->st_info == 0x12) { + // find the function data + + for (k = 0; k < nFuncs; k++) { + if (strcmp(name, Func[k]) == 0) + break; + } + + if (k >= nFuncs) { + tcc_error("debug info can't find function: %s", name); + } + // put a Function Name + + csym.n_value = p->st_value; // physical address + csym.n_scnum = CoffTextSectionNo; + csym.n_type = MKTYPE(T_INT, DT_FCN, 0, 0, 0, 0, 0); + csym.n_sclass = C_EXT; + csym.n_numaux = 1; + fwrite(&csym, 18, 1, f); + + // now put aux info + + auxfunc.tag = 0; + auxfunc.size = EndAddress[k] - p->st_value; + auxfunc.fileptr = LineNoFilePtr[k]; + auxfunc.nextsym = n + 6; // tktk + auxfunc.dummy = 0; + fwrite(&auxfunc, 18, 1, f); + + // put a .bf + + strcpy(csym._n._n_name, ".bf"); + csym.n_value = p->st_value; // physical address + csym.n_scnum = CoffTextSectionNo; + csym.n_type = 0; + csym.n_sclass = C_FCN; + csym.n_numaux = 1; + fwrite(&csym, 18, 1, f); + + // now put aux info + + auxbf.regmask = 0; + auxbf.lineno = 0; + auxbf.nentries = FuncEntries[k]; + auxbf.localframe = 0; + auxbf.nextentry = n + 6; + auxbf.dummy = 0; + fwrite(&auxbf, 18, 1, f); + + // put a .ef + + strcpy(csym._n._n_name, ".ef"); + csym.n_value = EndAddress[k]; // physical address + csym.n_scnum = CoffTextSectionNo; + csym.n_type = 0; + csym.n_sclass = C_FCN; + csym.n_numaux = 1; + fwrite(&csym, 18, 1, f); + + // now put aux info + + auxef.dummy = 0; + auxef.lineno = LastLineNo[k]; + auxef.dummy1 = 0; + auxef.dummy2 = 0; + auxef.dummy3 = 0; + auxef.dummy4 = 0; + fwrite(&auxef, 18, 1, f); + + n += 6; + + } else { + // try an put some type info + + if ((p->st_other & VT_BTYPE) == VT_DOUBLE) { + csym.n_type = T_DOUBLE; // int + csym.n_sclass = C_EXT; + } else if ((p->st_other & VT_BTYPE) == VT_FLOAT) { + csym.n_type = T_FLOAT; + csym.n_sclass = C_EXT; + } else if ((p->st_other & VT_BTYPE) == VT_INT) { + csym.n_type = T_INT; // int + csym.n_sclass = C_EXT; + } else if ((p->st_other & VT_BTYPE) == VT_SHORT) { + csym.n_type = T_SHORT; + csym.n_sclass = C_EXT; + } else if ((p->st_other & VT_BTYPE) == VT_BYTE) { + csym.n_type = T_CHAR; + csym.n_sclass = C_EXT; + } else { + csym.n_type = T_INT; // just mark as a label + csym.n_sclass = C_LABEL; + } + + + csym.n_value = p->st_value; + csym.n_scnum = 2; + csym.n_numaux = 1; + fwrite(&csym, 18, 1, f); + + auxfunc.tag = 0; + auxfunc.size = 0x20; + auxfunc.fileptr = 0; + auxfunc.nextsym = 0; + auxfunc.dummy = 0; + fwrite(&auxfunc, 18, 1, f); + n++; + n++; + + } + + p++; + } + } + + if (s1->do_debug) { + // write string table + + // first write the size + i = pCoff_str_table - Coff_str_table; + fwrite(&i, 4, 1, f); + + // then write the strings + fwrite(Coff_str_table, i, 1, f); + + tcc_free(Coff_str_table); + } + + return 0; +} + + + +// group the symbols in order of filename, func1, func2, etc +// finally global symbols + +void SortSymbolTable(void) +{ + int i, j, k, n = 0; + Elf32_Sym *p, *p2, *NewTable; + char *name, *name2; + + NewTable = (Elf32_Sym *) tcc_malloc(nb_syms * sizeof(Elf32_Sym)); + + p = (Elf32_Sym *) symtab_section->data; + + + // find a file symbol, copy it over + // then scan the whole symbol list and copy any function + // symbols that match the file association + + for (i = 0; i < nb_syms; i++) { + if (p->st_info == 4) { + name = (char *) symtab_section->link->data + p->st_name; + + // this is a file symbol, copy it over + + NewTable[n++] = *p; + + p2 = (Elf32_Sym *) symtab_section->data; + + for (j = 0; j < nb_syms; j++) { + if (p2->st_info == 0x12) { + // this is a func symbol + + name2 = + (char *) symtab_section->link->data + p2->st_name; + + // find the function data index + + for (k = 0; k < nFuncs; k++) { + if (strcmp(name2, Func[k]) == 0) + break; + } + + if (k >= nFuncs) { + tcc_error("debug (sort) info can't find function: %s", name2); + } + + if (strcmp(AssociatedFile[k], name) == 0) { + // yes they match copy it over + + NewTable[n++] = *p2; + } + } + p2++; + } + } + p++; + } + + // now all the filename and func symbols should have been copied over + // copy all the rest over (all except file and funcs) + + p = (Elf32_Sym *) symtab_section->data; + for (i = 0; i < nb_syms; i++) { + if (p->st_info != 4 && p->st_info != 0x12) { + NewTable[n++] = *p; + } + p++; + } + + if (n != nb_syms) + tcc_error("Internal Compiler error, debug info"); + + // copy it all back + + p = (Elf32_Sym *) symtab_section->data; + for (i = 0; i < nb_syms; i++) { + *p++ = NewTable[i]; + } + + tcc_free(NewTable); +} + + +int FindCoffSymbolIndex(const char *func_name) +{ + int i, n = 0; + Elf32_Sym *p; + char *name; + + p = (Elf32_Sym *) symtab_section->data; + + for (i = 0; i < nb_syms; i++) { + + name = (char *) symtab_section->link->data + p->st_name; + + if (p->st_info == 4) { + // put a filename symbol + n++; + } else if (p->st_info == 0x12) { + + if (strcmp(func_name, name) == 0) + return n; + + n += 6; + + // put a Function Name + + // now put aux info + + // put a .bf + + // now put aux info + + // put a .ef + + // now put aux info + + } else { + n += 2; + } + + p++; + } + + return n; // total number of symbols +} + +int OutputTheSection(Section * sect) +{ + const char *s = sect->name; + + if (!strcmp(s, ".text")) + return 1; + else if (!strcmp(s, ".data")) + return 1; + else + return 0; +} + +short int GetCoffFlags(const char *s) +{ + if (!strcmp(s, ".text")) + return STYP_TEXT | STYP_DATA | STYP_ALIGN | 0x400; + else if (!strcmp(s, ".data")) + return STYP_DATA; + else if (!strcmp(s, ".bss")) + return STYP_BSS; + else if (!strcmp(s, ".stack")) + return STYP_BSS | STYP_ALIGN | 0x200; + else if (!strcmp(s, ".cinit")) + return STYP_COPY | STYP_DATA | STYP_ALIGN | 0x200; + else + return 0; +} + +Section *FindSection(TCCState * s1, const char *sname) +{ + Section *s; + int i; + + for (i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + + if (!strcmp(sname, s->name)) + return s; + } + + tcc_error("could not find section %s", sname); + return 0; +} + +ST_FUNC int tcc_load_coff(TCCState * s1, int fd) +{ +// tktk TokenSym *ts; + + FILE *f; + unsigned int str_size; + char *Coff_str_table, *name; + int i, k; + struct syment csym; + char name2[9]; + FILHDR file_hdr; /* FILE HEADER STRUCTURE */ + + f = fdopen(fd, "rb"); + if (!f) { + tcc_error("Unable to open .out file for input"); + } + + if (fread(&file_hdr, FILHSZ, 1, f) != 1) + tcc_error("error reading .out file for input"); + + if (fread(&o_filehdr, sizeof(o_filehdr), 1, f) != 1) + tcc_error("error reading .out file for input"); + + // first read the string table + + if (fseek(f, file_hdr.f_symptr + file_hdr.f_nsyms * SYMESZ, SEEK_SET)) + tcc_error("error reading .out file for input"); + + if (fread(&str_size, sizeof(int), 1, f) != 1) + tcc_error("error reading .out file for input"); + + + Coff_str_table = (char *) tcc_malloc(str_size); + + if (fread(Coff_str_table, str_size - 4, 1, f) != 1) + tcc_error("error reading .out file for input"); + + // read/process all the symbols + + // seek back to symbols + + if (fseek(f, file_hdr.f_symptr, SEEK_SET)) + tcc_error("error reading .out file for input"); + + for (i = 0; i < file_hdr.f_nsyms; i++) { + if (fread(&csym, SYMESZ, 1, f) != 1) + tcc_error("error reading .out file for input"); + + if (csym._n._n_n._n_zeroes == 0) { + name = Coff_str_table + csym._n._n_n._n_offset - 4; + } else { + name = csym._n._n_name; + + if (name[7] != 0) { + for (k = 0; k < 8; k++) + name2[k] = name[k]; + + name2[8] = 0; + + name = name2; + } + } +// if (strcmp("_DAC_Buffer",name)==0) // tktk +// name[0]=0; + + if (((csym.n_type & 0x30) == 0x20 && csym.n_sclass == 0x2) || ((csym.n_type & 0x30) == 0x30 && csym.n_sclass == 0x2) || (csym.n_type == 0x4 && csym.n_sclass == 0x2) || (csym.n_type == 0x8 && csym.n_sclass == 0x2) || // structures + (csym.n_type == 0x18 && csym.n_sclass == 0x2) || // pointer to structure + (csym.n_type == 0x7 && csym.n_sclass == 0x2) || // doubles + (csym.n_type == 0x6 && csym.n_sclass == 0x2)) // floats + { + // strip off any leading underscore (except for other main routine) + + if (name[0] == '_' && strcmp(name, "_main") != 0) + name++; + + tcc_add_symbol(s1, name, (void*)(uintptr_t)csym.n_value); + } + // skip any aux records + + if (csym.n_numaux == 1) { + if (fread(&csym, SYMESZ, 1, f) != 1) + tcc_error("error reading .out file for input"); + i++; + } + } + + return 0; +} diff --git a/external/TCC/tccelf.c b/external/TCC/tccelf.c new file mode 100644 index 00000000..9cfa8c41 --- /dev/null +++ b/external/TCC/tccelf.c @@ -0,0 +1,3512 @@ +/* + * ELF file handling for TCC + * + * Copyright (c) 2001-2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" + +/* Define this to get some debug output during relocation processing. */ +#undef DEBUG_RELOC + +/* XXX: avoid static variable */ +static int new_undef_sym = 0; /* Is there a new undefined sym since last new_undef_sym() */ + +ST_FUNC int put_elf_str(Section *s, const char *sym) +{ + int offset, len; + char *ptr; + + len = strlen(sym) + 1; + offset = s->data_offset; + ptr = section_ptr_add(s, len); + memcpy(ptr, sym, len); + return offset; +} + +/* elf symbol hashing function */ +static unsigned long elf_hash(const unsigned char *name) +{ + unsigned long h = 0, g; + + while (*name) { + h = (h << 4) + *name++; + g = h & 0xf0000000; + if (g) + h ^= g >> 24; + h &= ~g; + } + return h; +} + +/* rebuild hash table of section s */ +/* NOTE: we do factorize the hash table code to go faster */ +static void rebuild_hash(Section *s, unsigned int nb_buckets) +{ + ElfW(Sym) *sym; + int *ptr, *hash, nb_syms, sym_index, h; + unsigned char *strtab; + + strtab = s->link->data; + nb_syms = s->data_offset / sizeof(ElfW(Sym)); + + s->hash->data_offset = 0; + ptr = section_ptr_add(s->hash, (2 + nb_buckets + nb_syms) * sizeof(int)); + ptr[0] = nb_buckets; + ptr[1] = nb_syms; + ptr += 2; + hash = ptr; + memset(hash, 0, (nb_buckets + 1) * sizeof(int)); + ptr += nb_buckets + 1; + + sym = (ElfW(Sym) *)s->data + 1; + for(sym_index = 1; sym_index < nb_syms; sym_index++) { + if (ELFW(ST_BIND)(sym->st_info) != STB_LOCAL) { + h = elf_hash(strtab + sym->st_name) % nb_buckets; + *ptr = hash[h]; + hash[h] = sym_index; + } else { + *ptr = 0; + } + ptr++; + sym++; + } +} + +/* return the symbol number */ +ST_FUNC int put_elf_sym(Section *s, addr_t value, unsigned long size, + int info, int other, int shndx, const char *name) +{ + int name_offset, sym_index; + int nbuckets, h; + ElfW(Sym) *sym; + Section *hs; + + sym = section_ptr_add(s, sizeof(ElfW(Sym))); + if (name) + name_offset = put_elf_str(s->link, name); + else + name_offset = 0; + /* XXX: endianness */ + sym->st_name = name_offset; + sym->st_value = value; + sym->st_size = size; + sym->st_info = info; + sym->st_other = other; + sym->st_shndx = shndx; + sym_index = sym - (ElfW(Sym) *)s->data; + hs = s->hash; + if (hs) { + int *ptr, *base; + ptr = section_ptr_add(hs, sizeof(int)); + base = (int *)hs->data; + /* only add global or weak symbols */ + if (ELFW(ST_BIND)(info) != STB_LOCAL) { + /* add another hashing entry */ + nbuckets = base[0]; + h = elf_hash((unsigned char *) name) % nbuckets; + *ptr = base[2 + h]; + base[2 + h] = sym_index; + base[1]++; + /* we resize the hash table */ + hs->nb_hashed_syms++; + if (hs->nb_hashed_syms > 2 * nbuckets) { + rebuild_hash(s, 2 * nbuckets); + } + } else { + *ptr = 0; + base[1]++; + } + } + return sym_index; +} + +/* find global ELF symbol 'name' and return its index. Return 0 if not + found. */ +ST_FUNC int find_elf_sym(Section *s, const char *name) +{ + ElfW(Sym) *sym; + Section *hs; + int nbuckets, sym_index, h; + const char *name1; + + hs = s->hash; + if (!hs) + return 0; + nbuckets = ((int *)hs->data)[0]; + h = elf_hash((unsigned char *) name) % nbuckets; + sym_index = ((int *)hs->data)[2 + h]; + while (sym_index != 0) { + sym = &((ElfW(Sym) *)s->data)[sym_index]; + name1 = (char *) s->link->data + sym->st_name; + if (!strcmp(name, name1)) + return sym_index; + sym_index = ((int *)hs->data)[2 + nbuckets + sym_index]; + } + return 0; +} + +/* return elf symbol value, signal error if 'err' is nonzero */ +ST_FUNC addr_t get_elf_sym_addr(TCCState *s, const char *name, int err) +{ + int sym_index; + ElfW(Sym) *sym; + + sym_index = find_elf_sym(s->symtab, name); + sym = &((ElfW(Sym) *)s->symtab->data)[sym_index]; + if (!sym_index || sym->st_shndx == SHN_UNDEF) { + if (err) + tcc_error("%s not defined", name); + return 0; + } + return sym->st_value; +} + +/* return elf symbol value */ +LIBTCCAPI void *tcc_get_symbol(TCCState *s, const char *name) +{ + return (void*)(uintptr_t)get_elf_sym_addr(s, name, 0); +} + +#if defined TCC_IS_NATIVE || defined TCC_TARGET_PE +/* return elf symbol value or error */ +ST_FUNC void* tcc_get_symbol_err(TCCState *s, const char *name) +{ + return (void*)(uintptr_t)get_elf_sym_addr(s, name, 1); +} +#endif + +/* add an elf symbol : check if it is already defined and patch + it. Return symbol index. NOTE that sh_num can be SHN_UNDEF. */ +ST_FUNC int add_elf_sym(Section *s, addr_t value, unsigned long size, + int info, int other, int sh_num, const char *name) +{ + ElfW(Sym) *esym; + int sym_bind, sym_index, sym_type, esym_bind; + unsigned char sym_vis, esym_vis, new_vis; + + sym_bind = ELFW(ST_BIND)(info); + sym_type = ELFW(ST_TYPE)(info); + sym_vis = ELFW(ST_VISIBILITY)(other); + + if (sym_bind != STB_LOCAL) { + /* we search global or weak symbols */ + sym_index = find_elf_sym(s, name); + if (!sym_index) + goto do_def; + esym = &((ElfW(Sym) *)s->data)[sym_index]; + if (esym->st_shndx != SHN_UNDEF) { + esym_bind = ELFW(ST_BIND)(esym->st_info); + /* propagate the most constraining visibility */ + /* STV_DEFAULT(0)st_other); + if (esym_vis == STV_DEFAULT) { + new_vis = sym_vis; + } else if (sym_vis == STV_DEFAULT) { + new_vis = esym_vis; + } else { + new_vis = (esym_vis < sym_vis) ? esym_vis : sym_vis; + } + esym->st_other = (esym->st_other & ~ELFW(ST_VISIBILITY)(-1)) + | new_vis; + other = esym->st_other; /* in case we have to patch esym */ + if (sh_num == SHN_UNDEF) { + /* ignore adding of undefined symbol if the + corresponding symbol is already defined */ + } else if (sym_bind == STB_GLOBAL && esym_bind == STB_WEAK) { + /* global overrides weak, so patch */ + goto do_patch; + } else if (sym_bind == STB_WEAK && esym_bind == STB_GLOBAL) { + /* weak is ignored if already global */ + } else if (sym_bind == STB_WEAK && esym_bind == STB_WEAK) { + /* keep first-found weak definition, ignore subsequents */ + } else if (sym_vis == STV_HIDDEN || sym_vis == STV_INTERNAL) { + /* ignore hidden symbols after */ + } else if (esym->st_shndx == SHN_COMMON + && (sh_num < SHN_LORESERVE || sh_num == SHN_COMMON)) { + /* gr: Happens with 'tcc ... -static tcctest.c' on e.g. Ubuntu 6.01 + No idea if this is the correct solution ... */ + goto do_patch; + } else if (s == tcc_state->dynsymtab_section) { + /* we accept that two DLL define the same symbol */ + } else { +#if 0 + printf("new_bind=%x new_shndx=%x new_vis=%x old_bind=%x old_shndx=%x old_vis=%x\n", + sym_bind, sh_num, new_vis, esym_bind, esym->st_shndx, esym_vis); +#endif + tcc_error_noabort("'%s' defined twice... may be -fcommon is needed?", name); + } + } else { + do_patch: + esym->st_info = ELFW(ST_INFO)(sym_bind, sym_type); + esym->st_shndx = sh_num; + new_undef_sym = 1; + esym->st_value = value; + esym->st_size = size; + esym->st_other = other; + } + } else { + do_def: + sym_index = put_elf_sym(s, value, size, + ELFW(ST_INFO)(sym_bind, sym_type), other, + sh_num, name); + } + return sym_index; +} + +/* put relocation */ +ST_FUNC void put_elf_reloca(Section *symtab, Section *s, unsigned long offset, + int type, int symbol, addr_t addend) +{ + char buf[256]; + Section *sr; + ElfW_Rel *rel; + + sr = s->reloc; + if (!sr) { + /* if no relocation section, create it */ + snprintf(buf, sizeof(buf), REL_SECTION_FMT, s->name); + /* if the symtab is allocated, then we consider the relocation + are also */ + sr = new_section(tcc_state, buf, SHT_RELX, symtab->sh_flags); + sr->sh_entsize = sizeof(ElfW_Rel); + sr->link = symtab; + sr->sh_info = s->sh_num; + s->reloc = sr; + } + rel = section_ptr_add(sr, sizeof(ElfW_Rel)); + rel->r_offset = offset; + rel->r_info = ELFW(R_INFO)(symbol, type); +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + rel->r_addend = addend; +#else + if (addend) + tcc_error("non-zero addend on REL architecture"); +#endif +} + +ST_FUNC void put_elf_reloc(Section *symtab, Section *s, unsigned long offset, + int type, int symbol) +{ + put_elf_reloca(symtab, s, offset, type, symbol, 0); +} + +/* put stab debug information */ + +ST_FUNC void put_stabs(const char *str, int type, int other, int desc, + unsigned long value) +{ + Stab_Sym *sym; + + sym = section_ptr_add(stab_section, sizeof(Stab_Sym)); + if (str) { + sym->n_strx = put_elf_str(stabstr_section, str); + } else { + sym->n_strx = 0; + } + sym->n_type = type; + sym->n_other = other; + sym->n_desc = desc; + sym->n_value = value; +} + +ST_FUNC void put_stabs_r(const char *str, int type, int other, int desc, + unsigned long value, Section *sec, int sym_index) +{ + put_stabs(str, type, other, desc, value); + put_elf_reloc(symtab_section, stab_section, + stab_section->data_offset - sizeof(unsigned int), + R_DATA_32, sym_index); +} + +ST_FUNC void put_stabn(int type, int other, int desc, int value) +{ + put_stabs(NULL, type, other, desc, value); +} + +ST_FUNC void put_stabd(int type, int other, int desc) +{ + put_stabs(NULL, type, other, desc, 0); +} + +/* Browse each elem of type in section starting at elem + using variable */ +#define for_each_elem(sec, startoff, elem, type) \ + for (elem = (type *) sec->data + startoff; \ + elem < (type *) (sec->data + sec->data_offset); elem++) + +/* In an ELF file symbol table, the local symbols must appear below + the global and weak ones. Since TCC cannot sort it while generating + the code, we must do it after. All the relocation tables are also + modified to take into account the symbol table sorting */ +static void sort_syms(TCCState *s1, Section *s) +{ + int *old_to_new_syms; + ElfW(Sym) *new_syms; + int nb_syms, i; + ElfW(Sym) *p, *q; + ElfW_Rel *rel; + Section *sr; + int type, sym_index; + + nb_syms = s->data_offset / sizeof(ElfW(Sym)); + new_syms = tcc_malloc(nb_syms * sizeof(ElfW(Sym))); + old_to_new_syms = tcc_malloc(nb_syms * sizeof(int)); + + /* first pass for local symbols */ + p = (ElfW(Sym) *)s->data; + q = new_syms; + for(i = 0; i < nb_syms; i++) { + if (ELFW(ST_BIND)(p->st_info) == STB_LOCAL) { + old_to_new_syms[i] = q - new_syms; + *q++ = *p; + } + p++; + } + /* save the number of local symbols in section header */ + s->sh_info = q - new_syms; + + /* then second pass for non local symbols */ + p = (ElfW(Sym) *)s->data; + for(i = 0; i < nb_syms; i++) { + if (ELFW(ST_BIND)(p->st_info) != STB_LOCAL) { + old_to_new_syms[i] = q - new_syms; + *q++ = *p; + } + p++; + } + + /* we copy the new symbols to the old */ + memcpy(s->data, new_syms, nb_syms * sizeof(ElfW(Sym))); + tcc_free(new_syms); + + /* now we modify all the relocations */ + for(i = 1; i < s1->nb_sections; i++) { + sr = s1->sections[i]; + if (sr->sh_type == SHT_RELX && sr->link == s) { + for_each_elem(sr, 0, rel, ElfW_Rel) { + sym_index = ELFW(R_SYM)(rel->r_info); + type = ELFW(R_TYPE)(rel->r_info); + sym_index = old_to_new_syms[sym_index]; + rel->r_info = ELFW(R_INFO)(sym_index, type); + } + } + } + + tcc_free(old_to_new_syms); +} + +/* relocate common symbols in the .bss section */ +ST_FUNC void relocate_common_syms(void) +{ + ElfW(Sym) *sym; + unsigned long offset, align; + + for_each_elem(symtab_section, 1, sym, ElfW(Sym)) { + if (sym->st_shndx == SHN_COMMON) { + /* align symbol */ + align = sym->st_value; + offset = bss_section->data_offset; + offset = (offset + align - 1) & -align; + sym->st_value = offset; + sym->st_shndx = bss_section->sh_num; + offset += sym->st_size; + bss_section->data_offset = offset; + } + } +} + +/* relocate symbol table, resolve undefined symbols if do_resolve is + true and output error if undefined symbol. */ +ST_FUNC void relocate_syms(TCCState *s1, int do_resolve) +{ + ElfW(Sym) *sym, *esym; + int sym_bind, sh_num, sym_index; + const char *name; + + for_each_elem(symtab_section, 1, sym, ElfW(Sym)) { + sh_num = sym->st_shndx; + if (sh_num == SHN_UNDEF) { + name = (char *) strtab_section->data + sym->st_name; + /* Use ld.so to resolve symbol for us (for tcc -run) */ + if (do_resolve) { +#if defined TCC_IS_NATIVE && !defined _WIN32 + void *addr; + name = (char *) symtab_section->link->data + sym->st_name; + addr = resolve_sym(s1, name); + if (addr) { + sym->st_value = (addr_t)addr; +#ifdef DEBUG_RELOC + printf ("relocate_sym: %s -> 0x%lx\n", name, sym->st_value); +#endif + goto found; + } +#endif + } else if (s1->dynsym) { + /* if dynamic symbol exist, then use it */ + sym_index = find_elf_sym(s1->dynsym, name); + if (sym_index) { + esym = &((ElfW(Sym) *)s1->dynsym->data)[sym_index]; + sym->st_value = esym->st_value; + goto found; + } + } + /* XXX: _fp_hw seems to be part of the ABI, so we ignore + it */ + if (!strcmp(name, "_fp_hw")) + goto found; + /* only weak symbols are accepted to be undefined. Their + value is zero */ + sym_bind = ELFW(ST_BIND)(sym->st_info); + if (sym_bind == STB_WEAK) { + sym->st_value = 0; + } else { + tcc_error_noabort("undefined symbol '%s'", name); + } + } else if (sh_num < SHN_LORESERVE) { + /* add section base */ + sym->st_value += s1->sections[sym->st_shndx]->sh_addr; + } + found: ; + } +} + +/* relocate a given section (CPU dependent) by applying the relocations + in the associated relocation section */ +ST_FUNC void relocate_section(TCCState *s1, Section *s) +{ + Section *sr = s->reloc; + ElfW_Rel *rel; + ElfW(Sym) *sym; + int type, sym_index; + unsigned char *ptr; + addr_t val, addr; +#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 + ElfW_Rel *qrel = (ElfW_Rel *) sr->data; /* ptr to next reloc entry reused */ + int esym_index; +#endif + + for_each_elem(sr, 0, rel, ElfW_Rel) { + ptr = s->data + rel->r_offset; + + sym_index = ELFW(R_SYM)(rel->r_info); + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + val = sym->st_value; +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + val += rel->r_addend; +#endif + type = ELFW(R_TYPE)(rel->r_info); + addr = s->sh_addr + rel->r_offset; + + /* CPU specific */ + switch(type) { +#if defined(TCC_TARGET_I386) + case R_386_32: + if (s1->output_type == TCC_OUTPUT_DLL) { + esym_index = s1->symtab_to_dynsym[sym_index]; + qrel->r_offset = rel->r_offset; + if (esym_index) { + qrel->r_info = ELFW(R_INFO)(esym_index, R_386_32); + qrel++; + break; + } else { + qrel->r_info = ELFW(R_INFO)(0, R_386_RELATIVE); + qrel++; + } + } + write32le(ptr, read32le(ptr) + val); + break; + case R_386_PC32: + if (s1->output_type == TCC_OUTPUT_DLL) { + /* DLL relocation */ + esym_index = s1->symtab_to_dynsym[sym_index]; + if (esym_index) { + qrel->r_offset = rel->r_offset; + qrel->r_info = ELFW(R_INFO)(esym_index, R_386_PC32); + qrel++; + break; + } + } + write32le(ptr, read32le(ptr) + val - addr); + break; + case R_386_PLT32: + write32le(ptr, read32le(ptr) + val - addr); + break; + case R_386_GLOB_DAT: + case R_386_JMP_SLOT: + write32le(ptr, val); + break; + case R_386_GOTPC: + write32le(ptr, read32le(ptr) + s1->got->sh_addr - addr); + break; + case R_386_GOTOFF: + write32le(ptr, read32le(ptr) + val - s1->got->sh_addr); + break; + case R_386_GOT32: + case R_386_GOT32X: + /* we load the got offset */ + write32le(ptr, read32le(ptr) + s1->sym_attrs[sym_index].got_offset); + break; + case R_386_16: + if (s1->output_format != TCC_OUTPUT_FORMAT_BINARY) { + output_file: + tcc_error("can only produce 16-bit binary files"); + } + write16le(ptr, read16le(ptr) + val); + break; + case R_386_PC16: + if (s1->output_format != TCC_OUTPUT_FORMAT_BINARY) + goto output_file; + write16le(ptr, read16le(ptr) + val - addr); + break; + case R_386_RELATIVE: + /* do nothing */ + break; + default: + fprintf(stderr,"FIXME: handle reloc type %d at %x [%p] to %x\n", + type, (unsigned)addr, ptr, (unsigned)val); + break; +#elif defined(TCC_TARGET_ARM) + case R_ARM_PC24: + case R_ARM_CALL: + case R_ARM_JUMP24: + case R_ARM_PLT32: + { + int x, is_thumb, is_call, h, blx_avail, is_bl, th_ko; + x = (*(int *) ptr) & 0xffffff; + if (sym->st_shndx == SHN_UNDEF) + val = s1->plt->sh_addr; +#ifdef DEBUG_RELOC + printf ("reloc %d: x=0x%x val=0x%x ", type, x, val); +#endif + (*(int *)ptr) &= 0xff000000; + if (x & 0x800000) + x -= 0x1000000; + x <<= 2; + blx_avail = (TCC_ARM_VERSION >= 5); + is_thumb = val & 1; + is_bl = (*(unsigned *) ptr) >> 24 == 0xeb; + is_call = (type == R_ARM_CALL || (type == R_ARM_PC24 && is_bl)); + x += val - addr; +#ifdef DEBUG_RELOC + printf (" newx=0x%x name=%s\n", x, + (char *) symtab_section->link->data + sym->st_name); +#endif + h = x & 2; + th_ko = (x & 3) && (!blx_avail || !is_call); + if (th_ko || x >= 0x2000000 || x < -0x2000000) + tcc_error("can't relocate value at %x,%d",addr, type); + x >>= 2; + x &= 0xffffff; + /* Only reached if blx is avail and it is a call */ + if (is_thumb) { + x |= h << 24; + (*(int *)ptr) = 0xfa << 24; /* bl -> blx */ + } + (*(int *) ptr) |= x; + } + break; + /* Since these relocations only concern Thumb-2 and blx instruction was + introduced before Thumb-2, we can assume blx is available and not + guard its use */ + case R_ARM_THM_PC22: + case R_ARM_THM_JUMP24: + { + int x, hi, lo, s, j1, j2, i1, i2, imm10, imm11; + int to_thumb, is_call, to_plt, blx_bit = 1 << 12; + Section *plt; + + /* weak reference */ + if (sym->st_shndx == SHN_UNDEF && + ELFW(ST_BIND)(sym->st_info) == STB_WEAK) + break; + + /* Get initial offset */ + hi = (*(uint16_t *)ptr); + lo = (*(uint16_t *)(ptr+2)); + s = (hi >> 10) & 1; + j1 = (lo >> 13) & 1; + j2 = (lo >> 11) & 1; + i1 = (j1 ^ s) ^ 1; + i2 = (j2 ^ s) ^ 1; + imm10 = hi & 0x3ff; + imm11 = lo & 0x7ff; + x = (s << 24) | (i1 << 23) | (i2 << 22) | + (imm10 << 12) | (imm11 << 1); + if (x & 0x01000000) + x -= 0x02000000; + + /* Relocation infos */ + to_thumb = val & 1; + plt = s1->plt; + to_plt = (val >= plt->sh_addr) && + (val < plt->sh_addr + plt->data_offset); + is_call = (type == R_ARM_THM_PC22); + + /* Compute final offset */ + if (to_plt && !is_call) /* Point to 1st instr of Thumb stub */ + x -= 4; + x += val - addr; + if (!to_thumb && is_call) { + blx_bit = 0; /* bl -> blx */ + x = (x + 3) & -4; /* Compute offset from aligned PC */ + } + + /* Check that relocation is possible + * offset must not be out of range + * if target is to be entered in arm mode: + - bit 1 must not set + - instruction must be a call (bl) or a jump to PLT */ + if (!to_thumb || x >= 0x1000000 || x < -0x1000000) + if (to_thumb || (val & 2) || (!is_call && !to_plt)) + tcc_error("can't relocate value at %x,%d",addr, type); + + /* Compute and store final offset */ + s = (x >> 24) & 1; + i1 = (x >> 23) & 1; + i2 = (x >> 22) & 1; + j1 = s ^ (i1 ^ 1); + j2 = s ^ (i2 ^ 1); + imm10 = (x >> 12) & 0x3ff; + imm11 = (x >> 1) & 0x7ff; + (*(uint16_t *)ptr) = (uint16_t) ((hi & 0xf800) | + (s << 10) | imm10); + (*(uint16_t *)(ptr+2)) = (uint16_t) ((lo & 0xc000) | + (j1 << 13) | blx_bit | (j2 << 11) | + imm11); + } + break; + case R_ARM_MOVT_ABS: + case R_ARM_MOVW_ABS_NC: + { + int x, imm4, imm12; + if (type == R_ARM_MOVT_ABS) + val >>= 16; + imm12 = val & 0xfff; + imm4 = (val >> 12) & 0xf; + x = (imm4 << 16) | imm12; + if (type == R_ARM_THM_MOVT_ABS) + *(int *)ptr |= x; + else + *(int *)ptr += x; + } + break; + case R_ARM_THM_MOVT_ABS: + case R_ARM_THM_MOVW_ABS_NC: + { + int x, i, imm4, imm3, imm8; + if (type == R_ARM_THM_MOVT_ABS) + val >>= 16; + imm8 = val & 0xff; + imm3 = (val >> 8) & 0x7; + i = (val >> 11) & 1; + imm4 = (val >> 12) & 0xf; + x = (imm3 << 28) | (imm8 << 16) | (i << 10) | imm4; + if (type == R_ARM_THM_MOVT_ABS) + *(int *)ptr |= x; + else + *(int *)ptr += x; + } + break; + case R_ARM_PREL31: + { + int x; + x = (*(int *)ptr) & 0x7fffffff; + (*(int *)ptr) &= 0x80000000; + x = (x * 2) / 2; + x += val - addr; + if((x^(x>>1))&0x40000000) + tcc_error("can't relocate value at %x,%d",addr, type); + (*(int *)ptr) |= x & 0x7fffffff; + } + case R_ARM_ABS32: + *(int *)ptr += val; + break; + case R_ARM_REL32: + *(int *)ptr += val - addr; + break; + case R_ARM_GOTPC: + *(int *)ptr += s1->got->sh_addr - addr; + break; + case R_ARM_GOTOFF: + *(int *)ptr += val - s1->got->sh_addr; + break; + case R_ARM_GOT32: + /* we load the got offset */ + *(int *)ptr += s1->sym_attrs[sym_index].got_offset; + break; + case R_ARM_COPY: + break; + case R_ARM_V4BX: + /* trade Thumb support for ARMv4 support */ + if ((0x0ffffff0 & *(int*)ptr) == 0x012FFF10) + *(int*)ptr ^= 0xE12FFF10 ^ 0xE1A0F000; /* BX Rm -> MOV PC, Rm */ + break; + case R_ARM_GLOB_DAT: + case R_ARM_JUMP_SLOT: + *(addr_t *)ptr = val; + break; + case R_ARM_NONE: + /* Nothing to do. Normally used to indicate a dependency + on a certain symbol (like for exception handling under EABI). */ + break; + default: + fprintf(stderr,"FIXME: handle reloc type %x at %x [%p] to %x\n", + type, (unsigned)addr, ptr, (unsigned)val); + break; +#elif defined(TCC_TARGET_ARM64) + case R_AARCH64_ABS64: + write64le(ptr, val); + break; + case R_AARCH64_ABS32: + write32le(ptr, val); + break; + case R_AARCH64_MOVW_UABS_G0_NC: + write32le(ptr, ((read32le(ptr) & 0xffe0001f) | + (val & 0xffff) << 5)); + break; + case R_AARCH64_MOVW_UABS_G1_NC: + write32le(ptr, ((read32le(ptr) & 0xffe0001f) | + (val >> 16 & 0xffff) << 5)); + break; + case R_AARCH64_MOVW_UABS_G2_NC: + write32le(ptr, ((read32le(ptr) & 0xffe0001f) | + (val >> 32 & 0xffff) << 5)); + break; + case R_AARCH64_MOVW_UABS_G3: + write32le(ptr, ((read32le(ptr) & 0xffe0001f) | + (val >> 48 & 0xffff) << 5)); + break; + case R_AARCH64_ADR_PREL_PG_HI21: { + uint64_t off = (val >> 12) - (addr >> 12); + if ((off + ((uint64_t)1 << 20)) >> 21) + tcc_error("R_AARCH64_ADR_PREL_PG_HI21 relocation failed"); + write32le(ptr, ((read32le(ptr) & 0x9f00001f) | + (off & 0x1ffffc) << 3 | (off & 3) << 29)); + break; + } + case R_AARCH64_ADD_ABS_LO12_NC: + write32le(ptr, ((read32le(ptr) & 0xffc003ff) | + (val & 0xfff) << 10)); + break; + case R_AARCH64_JUMP26: + case R_AARCH64_CALL26: + /* This check must match the one in build_got_entries, testing + if we really need a PLT slot. */ + if (sym->st_shndx == SHN_UNDEF) + /* We've put the PLT slot offset into r_addend when generating + it, and that's what we must use as relocation value (adjusted + by section offset of course). */ + val = s1->plt->sh_addr + rel->r_addend; +#ifdef DEBUG_RELOC + printf ("reloc %d @ 0x%lx: val=0x%lx name=%s\n", type, addr, val, + (char *) symtab_section->link->data + sym->st_name); +#endif + if (((val - addr) + ((uint64_t)1 << 27)) & ~(uint64_t)0xffffffc) + { + tcc_error("R_AARCH64_(JUMP|CALL)26 relocation failed (val=%lx, addr=%lx)", addr, val); + } + write32le(ptr, (0x14000000 | + (uint32_t)(type == R_AARCH64_CALL26) << 31 | + ((val - addr) >> 2 & 0x3ffffff))); + break; + case R_AARCH64_ADR_GOT_PAGE: { + uint64_t off = + (((s1->got->sh_addr + + s1->sym_attrs[sym_index].got_offset) >> 12) - (addr >> 12)); + if ((off + ((uint64_t)1 << 20)) >> 21) + tcc_error("R_AARCH64_ADR_GOT_PAGE relocation failed"); + write32le(ptr, ((read32le(ptr) & 0x9f00001f) | + (off & 0x1ffffc) << 3 | (off & 3) << 29)); + break; + } + case R_AARCH64_LD64_GOT_LO12_NC: + write32le(ptr, + ((read32le(ptr) & 0xfff803ff) | + ((s1->got->sh_addr + + s1->sym_attrs[sym_index].got_offset) & 0xff8) << 7)); + break; + case R_AARCH64_COPY: + break; + case R_AARCH64_GLOB_DAT: + case R_AARCH64_JUMP_SLOT: + /* They don't need addend */ +#ifdef DEBUG_RELOC + printf ("reloc %d @ 0x%lx: val=0x%lx name=%s\n", type, addr, + val - rel->r_addend, + (char *) symtab_section->link->data + sym->st_name); +#endif + write64le(ptr, val - rel->r_addend); + break; + default: + fprintf(stderr, "FIXME: handle reloc type %x at %x [%p] to %x\n", + type, (unsigned)addr, ptr, (unsigned)val); + break; +#elif defined(TCC_TARGET_C67) + case R_C60_32: + *(int *)ptr += val; + break; + case R_C60LO16: + { + uint32_t orig; + + /* put the low 16 bits of the absolute address + add to what is already there */ + + orig = ((*(int *)(ptr )) >> 7) & 0xffff; + orig |= (((*(int *)(ptr+4)) >> 7) & 0xffff) << 16; + + /* patch both at once - assumes always in pairs Low - High */ + + *(int *) ptr = (*(int *) ptr & (~(0xffff << 7)) ) | (((val+orig) & 0xffff) << 7); + *(int *)(ptr+4) = (*(int *)(ptr+4) & (~(0xffff << 7)) ) | ((((val+orig)>>16) & 0xffff) << 7); + } + break; + case R_C60HI16: + break; + default: + fprintf(stderr,"FIXME: handle reloc type %x at %x [%p] to %x\n", + type, (unsigned)addr, ptr, (unsigned)val); + break; +#elif defined(TCC_TARGET_X86_64) + case R_X86_64_64: + if (s1->output_type == TCC_OUTPUT_DLL) { + esym_index = s1->symtab_to_dynsym[sym_index]; + qrel->r_offset = rel->r_offset; + if (esym_index) { + qrel->r_info = ELFW(R_INFO)(esym_index, R_X86_64_64); + qrel->r_addend = rel->r_addend; + qrel++; + break; + } else { + qrel->r_info = ELFW(R_INFO)(0, R_X86_64_RELATIVE); + qrel->r_addend = read64le(ptr) + val; + qrel++; + } + } + write64le(ptr, read64le(ptr) + val); + break; + case R_X86_64_32: + case R_X86_64_32S: + if (s1->output_type == TCC_OUTPUT_DLL) { + /* XXX: this logic may depend on TCC's codegen + now TCC uses R_X86_64_32 even for a 64bit pointer */ + qrel->r_info = ELFW(R_INFO)(0, R_X86_64_RELATIVE); + /* Use sign extension! */ + qrel->r_addend = (int)read32le(ptr) + val; + qrel++; + } + write32le(ptr, read32le(ptr) + val); + break; + + case R_X86_64_PC32: + if (s1->output_type == TCC_OUTPUT_DLL) { + /* DLL relocation */ + esym_index = s1->symtab_to_dynsym[sym_index]; + if (esym_index) { + qrel->r_offset = rel->r_offset; + qrel->r_info = ELFW(R_INFO)(esym_index, R_X86_64_PC32); + /* Use sign extension! */ + qrel->r_addend = (int)read32le(ptr); + qrel++; + break; + } + } + goto plt32pc32; + + case R_X86_64_PLT32: + /* We've put the PLT slot offset into r_addend when generating + it, and that's what we must use as relocation value (adjusted + by section offset of course). */ + val = s1->plt->sh_addr + rel->r_addend; + /* fallthrough. */ + + plt32pc32: + { + long long diff; + diff = (long long)val - addr; + if (diff < -2147483648LL || diff > 2147483647LL) { + tcc_error("internal error: relocation failed"); + } + write32le(ptr, read32le(ptr) + diff); + } + break; + case R_X86_64_GLOB_DAT: + case R_X86_64_JUMP_SLOT: + /* They don't need addend */ + write64le(ptr, val - rel->r_addend); + break; + case R_X86_64_GOTPCREL: + case R_X86_64_GOTPCRELX: + case R_X86_64_REX_GOTPCRELX: + write32le(ptr, read32le(ptr) + + (s1->got->sh_addr - addr + + s1->sym_attrs[sym_index].got_offset - 4)); + break; + case R_X86_64_GOTTPOFF: + write32le(ptr, read32le(ptr) + val - s1->got->sh_addr); + break; + case R_X86_64_GOT32: + /* we load the got offset */ + write32le(ptr, read32le(ptr) + s1->sym_attrs[sym_index].got_offset); + break; +#else +#error unsupported processor +#endif + } + } + /* if the relocation is allocated, we change its symbol table */ + if (sr->sh_flags & SHF_ALLOC) + sr->link = s1->dynsym; +} + +/* relocate relocation table in 'sr' */ +static void relocate_rel(TCCState *s1, Section *sr) +{ + Section *s; + ElfW_Rel *rel; + + s = s1->sections[sr->sh_info]; + for_each_elem(sr, 0, rel, ElfW_Rel) + rel->r_offset += s->sh_addr; +} + +/* count the number of dynamic relocations so that we can reserve + their space */ +static int prepare_dynamic_rel(TCCState *s1, Section *sr) +{ + ElfW_Rel *rel; + int sym_index, esym_index, type, count; + + count = 0; + for_each_elem(sr, 0, rel, ElfW_Rel) { + sym_index = ELFW(R_SYM)(rel->r_info); + type = ELFW(R_TYPE)(rel->r_info); + switch(type) { +#if defined(TCC_TARGET_I386) + case R_386_32: +#elif defined(TCC_TARGET_X86_64) + case R_X86_64_32: + case R_X86_64_32S: + case R_X86_64_64: +#endif + count++; + break; +#if defined(TCC_TARGET_I386) + case R_386_PC32: +#elif defined(TCC_TARGET_X86_64) + case R_X86_64_PC32: +#endif + esym_index = s1->symtab_to_dynsym[sym_index]; + if (esym_index) + count++; + break; + default: + break; + } + } + if (count) { + /* allocate the section */ + sr->sh_flags |= SHF_ALLOC; + sr->sh_size = count * sizeof(ElfW_Rel); + } + return count; +} + +static struct sym_attr *alloc_sym_attr(TCCState *s1, int index) +{ + int n; + struct sym_attr *tab; + + if (index >= s1->nb_sym_attrs) { + /* find immediately bigger power of 2 and reallocate array */ + n = 1; + while (index >= n) + n *= 2; + tab = tcc_realloc(s1->sym_attrs, n * sizeof(*s1->sym_attrs)); + s1->sym_attrs = tab; + memset(s1->sym_attrs + s1->nb_sym_attrs, 0, + (n - s1->nb_sym_attrs) * sizeof(*s1->sym_attrs)); + s1->nb_sym_attrs = n; + } + return &s1->sym_attrs[index]; +} + +static void build_got(TCCState *s1) +{ + unsigned char *ptr; + + /* if no got, then create it */ + s1->got = new_section(s1, ".got", SHT_PROGBITS, SHF_ALLOC | SHF_WRITE); + s1->got->sh_entsize = 4; + add_elf_sym(symtab_section, 0, 4, ELFW(ST_INFO)(STB_GLOBAL, STT_OBJECT), + 0, s1->got->sh_num, "_GLOBAL_OFFSET_TABLE_"); + ptr = section_ptr_add(s1->got, 3 * PTR_SIZE); +#if PTR_SIZE == 4 + /* keep space for _DYNAMIC pointer, if present */ + write32le(ptr, 0); + /* two dummy got entries */ + write32le(ptr + 4, 0); + write32le(ptr + 8, 0); +#else + /* keep space for _DYNAMIC pointer, if present */ + write32le(ptr, 0); + write32le(ptr + 4, 0); + /* two dummy got entries */ + write32le(ptr + 8, 0); + write32le(ptr + 12, 0); + write32le(ptr + 16, 0); + write32le(ptr + 20, 0); +#endif +} + +/* put a got or plt entry corresponding to a symbol in symtab_section. 'size' + and 'info' can be modifed if more precise info comes from the DLL. + Returns offset of GOT or PLT slot. */ +static unsigned long put_got_entry(TCCState *s1, + int reloc_type, unsigned long size, int info, + int sym_index) +{ + int index, need_plt_entry; + const char *name; + ElfW(Sym) *sym; + unsigned long offset; + int *ptr; + struct sym_attr *symattr; + + if (!s1->got) + build_got(s1); + + need_plt_entry = +#ifdef TCC_TARGET_X86_64 + (reloc_type == R_X86_64_JUMP_SLOT); +#elif defined(TCC_TARGET_I386) + (reloc_type == R_386_JMP_SLOT); +#elif defined(TCC_TARGET_ARM) + (reloc_type == R_ARM_JUMP_SLOT); +#elif defined(TCC_TARGET_ARM64) + (reloc_type == R_AARCH64_JUMP_SLOT); +#else + 0; +#endif + + if (need_plt_entry && !s1->plt) { + /* add PLT */ + s1->plt = new_section(s1, ".plt", SHT_PROGBITS, + SHF_ALLOC | SHF_EXECINSTR); + s1->plt->sh_entsize = 4; + } + + /* If a got/plt entry already exists for that symbol, no need to add one */ + if (sym_index < s1->nb_sym_attrs) { + if (need_plt_entry && s1->sym_attrs[sym_index].plt_offset) + return s1->sym_attrs[sym_index].plt_offset; + else if (!need_plt_entry && s1->sym_attrs[sym_index].got_offset) + return s1->sym_attrs[sym_index].got_offset; + } + + symattr = alloc_sym_attr(s1, sym_index); + + /* Only store the GOT offset if it's not generated for the PLT entry. */ + if (!need_plt_entry) + symattr->got_offset = s1->got->data_offset; + + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + name = (char *) symtab_section->link->data + sym->st_name; + offset = sym->st_value; +#if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64) + if (need_plt_entry) { + Section *plt; + uint8_t *p; + int modrm; + unsigned long relofs; + +#if defined(TCC_OUTPUT_DLL_WITH_PLT) + modrm = 0x25; +#else + /* if we build a DLL, we add a %ebx offset */ + if (s1->output_type == TCC_OUTPUT_DLL) + modrm = 0xa3; + else + modrm = 0x25; +#endif + + /* add a PLT entry */ + plt = s1->plt; + if (plt->data_offset == 0) { + /* first plt entry */ + p = section_ptr_add(plt, 16); + p[0] = 0xff; /* pushl got + PTR_SIZE */ + p[1] = modrm + 0x10; + write32le(p + 2, PTR_SIZE); + p[6] = 0xff; /* jmp *(got + PTR_SIZE * 2) */ + p[7] = modrm; + write32le(p + 8, PTR_SIZE * 2); + } + + /* The PLT slot refers to the relocation entry it needs + via offset. The reloc entry is created below, so its + offset is the current data_offset. */ + relofs = s1->got->reloc ? s1->got->reloc->data_offset : 0; + symattr->plt_offset = plt->data_offset; + p = section_ptr_add(plt, 16); + p[0] = 0xff; /* jmp *(got + x) */ + p[1] = modrm; + write32le(p + 2, s1->got->data_offset); + p[6] = 0x68; /* push $xxx */ +#ifdef TCC_TARGET_X86_64 + /* On x86-64, the relocation is referred to by _index_. */ + write32le(p + 7, relofs / sizeof (ElfW_Rel)); +#else + write32le(p + 7, relofs); +#endif + p[11] = 0xe9; /* jmp plt_start */ + write32le(p + 12, -(plt->data_offset)); + + /* If this was an UNDEF symbol set the offset in the + dynsymtab to the PLT slot, so that PC32 relocs to it + can be resolved. */ + if (sym->st_shndx == SHN_UNDEF) + offset = plt->data_offset - 16; + } +#elif defined(TCC_TARGET_ARM) + if (need_plt_entry) { + Section *plt; + uint8_t *p; + + /* if we build a DLL, we add a %ebx offset */ + if (s1->output_type == TCC_OUTPUT_DLL) + tcc_error("DLLs unimplemented!"); + + /* add a PLT entry */ + plt = s1->plt; + if (plt->data_offset == 0) { + /* first plt entry */ + p = section_ptr_add(plt, 16); + write32le(p, 0xe52de004); /* push {lr} */ + write32le(p+4, 0xe59fe010); /* ldr lr, [pc, #16] */ + write32le(p+8, 0xe08fe00e); /* add lr, pc, lr */ + write32le(p+12, 0xe5bef008); /* ldr pc, [lr, #8]! */ + } + + symattr->plt_offset = plt->data_offset; + if (symattr->plt_thumb_stub) { + p = section_ptr_add(plt, 20); + write32le(p, 0x4778); /* bx pc */ + write32le(p+2, 0x46c0); /* nop */ + p += 4; + } else + p = section_ptr_add(plt, 16); + write32le(p, 0xe59fc004); /* ldr ip, [pc, #4] ; GOT entry offset */ + write32le(p+4, 0xe08fc00c); /* add ip, pc, ip ; addr of GOT entry */ + write32le(p+8, 0xe59cf000); /* ldr pc, [ip] ; jump to GOT entry */ + write32le(p+12, s1->got->data_offset); /* GOT entry off once patched */ + + /* the symbol is modified so that it will be relocated to + the PLT */ + if (sym->st_shndx == SHN_UNDEF) + offset = plt->data_offset - 16; + } +#elif defined(TCC_TARGET_ARM64) + if (need_plt_entry) { + Section *plt; + uint8_t *p; + + if (s1->output_type == TCC_OUTPUT_DLL) + tcc_error("DLLs unimplemented!"); + + plt = s1->plt; + if (plt->data_offset == 0) + section_ptr_add(plt, 32); + symattr->plt_offset = plt->data_offset; + p = section_ptr_add(plt, 16); + write32le(p, s1->got->data_offset); + write32le(p + 4, (uint64_t)s1->got->data_offset >> 32); + + if (sym->st_shndx == SHN_UNDEF) + offset = plt->data_offset - 16; + } +#elif defined(TCC_TARGET_C67) + if (s1->dynsym) { + tcc_error("C67 got not implemented"); + } +#else +#error unsupported CPU +#endif + if (s1->dynsym) { + /* XXX This might generate multiple syms for name. */ + index = put_elf_sym(s1->dynsym, offset, + size, info, 0, sym->st_shndx, name); + /* Create the relocation (it's against the GOT for PLT + and GOT relocs). */ + put_elf_reloc(s1->dynsym, s1->got, + s1->got->data_offset, + reloc_type, index); + } else { + /* Without .dynsym (i.e. static link or memory output) we + still need relocs against the generated got, so as to fill + the entries with the symbol values (determined later). */ + put_elf_reloc(symtab_section, s1->got, + s1->got->data_offset, + reloc_type, sym_index); + } + /* And now create the GOT slot itself. */ + ptr = section_ptr_add(s1->got, PTR_SIZE); + *ptr = 0; + if (need_plt_entry) + return symattr->plt_offset; + else + return symattr->got_offset; +} + +/* build GOT and PLT entries */ +ST_FUNC void build_got_entries(TCCState *s1) +{ + Section *s; + ElfW_Rel *rel; + ElfW(Sym) *sym; + int i, type, reloc_type, sym_index; + + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + if (s->sh_type != SHT_RELX) + continue; + /* no need to handle got relocations */ + if (s->link != symtab_section) + continue; + for_each_elem(s, 0, rel, ElfW_Rel) { + type = ELFW(R_TYPE)(rel->r_info); + switch(type) { +#if defined(TCC_TARGET_I386) + case R_386_GOT32: + case R_386_GOT32X: + case R_386_GOTOFF: + case R_386_GOTPC: + case R_386_PLT32: + if (!s1->got) + build_got(s1); + if (type == R_386_GOT32 || type == R_386_GOT32X || + type == R_386_PLT32) { + sym_index = ELFW(R_SYM)(rel->r_info); + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + /* look at the symbol got offset. If none, then add one */ + if (type == R_386_GOT32 || type == R_386_GOT32X) + reloc_type = R_386_GLOB_DAT; + else + reloc_type = R_386_JMP_SLOT; + put_got_entry(s1, reloc_type, sym->st_size, sym->st_info, + sym_index); + } + break; +#elif defined(TCC_TARGET_ARM) + case R_ARM_PC24: + case R_ARM_CALL: + case R_ARM_JUMP24: + case R_ARM_GOT32: + case R_ARM_GOTOFF: + case R_ARM_GOTPC: + case R_ARM_PLT32: + if (!s1->got) + build_got(s1); + sym_index = ELFW(R_SYM)(rel->r_info); + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + if (type != R_ARM_GOTOFF && type != R_ARM_GOTPC + && sym->st_shndx == SHN_UNDEF) { + unsigned long ofs; + /* look at the symbol got offset. If none, then add one */ + if (type == R_ARM_GOT32) + reloc_type = R_ARM_GLOB_DAT; + else + reloc_type = R_ARM_JUMP_SLOT; + ofs = put_got_entry(s1, reloc_type, sym->st_size, + sym->st_info, sym_index); +#ifdef DEBUG_RELOC + printf ("maybegot: %s, %d, %d --> ofs=0x%x\n", + (char *) symtab_section->link->data + sym->st_name, + type, sym->st_shndx, ofs); +#endif + if (type != R_ARM_GOT32) { + addr_t *ptr = (addr_t*)(s1->sections[s->sh_info]->data + + rel->r_offset); + /* x must be signed! */ + int x = *ptr & 0xffffff; + x = (x << 8) >> 8; + x <<= 2; + x += ofs; + x >>= 2; +#ifdef DEBUG_RELOC + printf ("insn=0x%x --> 0x%x (x==0x%x)\n", *ptr, + (*ptr & 0xff000000) | x, x); +#endif + *ptr = (*ptr & 0xff000000) | x; + } + } + break; + case R_ARM_THM_JUMP24: + sym_index = ELFW(R_SYM)(rel->r_info); + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + /* We are relocating a jump from thumb code to arm code */ + if (sym->st_shndx != SHN_UNDEF && !(sym->st_value & 1)) { + int index; + uint8_t *p; + char *name, buf[1024]; + Section *text_section; + + name = (char *) symtab_section->link->data + sym->st_name; + text_section = s1->sections[sym->st_shndx]; + /* Modify reloc to target a thumb stub to switch to ARM */ + snprintf(buf, sizeof(buf), "%s_from_thumb", name); + index = put_elf_sym(symtab_section, + text_section->data_offset + 1, + sym->st_size, sym->st_info, 0, + sym->st_shndx, buf); + rel->r_info = ELFW(R_INFO)(index, type); + /* Create a thumb stub fonction to switch to ARM mode */ + put_elf_reloc(symtab_section, text_section, + text_section->data_offset + 4, R_ARM_JUMP24, + sym_index); + p = section_ptr_add(text_section, 8); + write32le(p, 0x4778); /* bx pc */ + write32le(p+2, 0x46c0); /* nop */ + write32le(p+4, 0xeafffffe); /* b $sym */ + } +#elif defined(TCC_TARGET_ARM64) + //xx Other cases may be required here: + case R_AARCH64_ADR_GOT_PAGE: + case R_AARCH64_LD64_GOT_LO12_NC: + if (!s1->got) + build_got(s1); + sym_index = ELFW(R_SYM)(rel->r_info); + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + reloc_type = R_AARCH64_GLOB_DAT; + put_got_entry(s1, reloc_type, sym->st_size, sym->st_info, + sym_index); + break; + + case R_AARCH64_JUMP26: + case R_AARCH64_CALL26: + if (!s1->got) + build_got(s1); + sym_index = ELFW(R_SYM)(rel->r_info); + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + if (sym->st_shndx == SHN_UNDEF) { + unsigned long ofs; + reloc_type = R_AARCH64_JUMP_SLOT; + ofs = put_got_entry(s1, reloc_type, sym->st_size, + sym->st_info, sym_index); + /* We store the place of the generated PLT slot + in our addend. */ + rel->r_addend += ofs; + } + break; +#elif defined(TCC_TARGET_C67) + case R_C60_GOT32: + case R_C60_GOTOFF: + case R_C60_GOTPC: + case R_C60_PLT32: + if (!s1->got) + build_got(s1); + if (type == R_C60_GOT32 || type == R_C60_PLT32) { + sym_index = ELFW(R_SYM)(rel->r_info); + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + /* look at the symbol got offset. If none, then add one */ + if (type == R_C60_GOT32) + reloc_type = R_C60_GLOB_DAT; + else + reloc_type = R_C60_JMP_SLOT; + put_got_entry(s1, reloc_type, sym->st_size, sym->st_info, + sym_index); + } + break; +#elif defined(TCC_TARGET_X86_64) + case R_X86_64_GOT32: + case R_X86_64_GOTTPOFF: + case R_X86_64_GOTPCREL: + case R_X86_64_GOTPCRELX: + case R_X86_64_REX_GOTPCRELX: + case R_X86_64_PLT32: + sym_index = ELFW(R_SYM)(rel->r_info); + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + if (type == R_X86_64_PLT32 && + ELFW(ST_VISIBILITY)(sym->st_other) != STV_DEFAULT) + { + rel->r_info = ELFW(R_INFO)(sym_index, R_X86_64_PC32); + break; + } + + if (!s1->got) { + build_got(s1); + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + } + if (type == R_X86_64_GOT32 || type == R_X86_64_GOTPCREL || + type == R_X86_64_GOTPCRELX || + type == R_X86_64_REX_GOTPCRELX || + type == R_X86_64_PLT32) { + unsigned long ofs; + /* look at the symbol got offset. If none, then add one */ + if (type == R_X86_64_PLT32) + reloc_type = R_X86_64_JUMP_SLOT; + else + reloc_type = R_X86_64_GLOB_DAT; + ofs = put_got_entry(s1, reloc_type, sym->st_size, + sym->st_info, sym_index); + if (type == R_X86_64_PLT32) + /* We store the place of the generated PLT slot + in our addend. */ + rel->r_addend += ofs; + } + break; +#else +#error unsupported CPU +#endif + default: + break; + } + } + } +} + +ST_FUNC Section *new_symtab(TCCState *s1, + const char *symtab_name, int sh_type, int sh_flags, + const char *strtab_name, + const char *hash_name, int hash_sh_flags) +{ + Section *symtab, *strtab, *hash; + int *ptr, nb_buckets; + + symtab = new_section(s1, symtab_name, sh_type, sh_flags); + symtab->sh_entsize = sizeof(ElfW(Sym)); + strtab = new_section(s1, strtab_name, SHT_STRTAB, sh_flags); + put_elf_str(strtab, ""); + symtab->link = strtab; + put_elf_sym(symtab, 0, 0, 0, 0, 0, NULL); + + nb_buckets = 1; + + hash = new_section(s1, hash_name, SHT_HASH, hash_sh_flags); + hash->sh_entsize = sizeof(int); + symtab->hash = hash; + hash->link = symtab; + + ptr = section_ptr_add(hash, (2 + nb_buckets + 1) * sizeof(int)); + ptr[0] = nb_buckets; + ptr[1] = 1; + memset(ptr + 2, 0, (nb_buckets + 1) * sizeof(int)); + return symtab; +} + +/* put dynamic tag */ +static void put_dt(Section *dynamic, int dt, addr_t val) +{ + ElfW(Dyn) *dyn; + dyn = section_ptr_add(dynamic, sizeof(ElfW(Dyn))); + dyn->d_tag = dt; + dyn->d_un.d_val = val; +} + +static void add_init_array_defines(TCCState *s1, const char *section_name) +{ + Section *s; + long end_offset; + char sym_start[1024]; + char sym_end[1024]; + + snprintf(sym_start, sizeof(sym_start), "__%s_start", section_name + 1); + snprintf(sym_end, sizeof(sym_end), "__%s_end", section_name + 1); + + s = find_section(s1, section_name); + if (!s) { + end_offset = 0; + s = data_section; + } else { + end_offset = s->data_offset; + } + + add_elf_sym(symtab_section, + 0, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + s->sh_num, sym_start); + add_elf_sym(symtab_section, + end_offset, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + s->sh_num, sym_end); +} + +static int tcc_add_support(TCCState *s1, const char *filename) +{ + char buf[1024]; + snprintf(buf, sizeof(buf), "%s/%s/%s", s1->tcc_lib_path, + /* an cpu specific path inside tcc_lib_path, mainly for keeping libtcc1.a */ + #ifdef TCC_TARGET_I386 + "i386" + #endif + #ifdef TCC_TARGET_X86_64 + "x86-64" + #endif + #ifdef TCC_TARGET_ARM + "arm" + #endif + #ifdef TCC_TARGET_ARM64 + "arm64" + #endif + #ifdef TCC_TARGET_C67 + "C67" + #endif + ,filename); + + return tcc_add_file(s1, buf, TCC_FILETYPE_BINARY); +} + +ST_FUNC void tcc_add_bcheck(TCCState *s1) +{ +#ifdef CONFIG_TCC_BCHECK + addr_t *ptr; + + if (0 == s1->do_bounds_check) + return; + + /* XXX: add an object file to do that */ + ptr = section_ptr_add(bounds_section, sizeof(*ptr)); + *ptr = 0; + add_elf_sym(symtab_section, 0, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + bounds_section->sh_num, "__bounds_start"); + if (s1->output_type != TCC_OUTPUT_MEMORY) { + /* add 'call __bound_init()' in .init section */ + + /* XXX not called on MSYS, reason is unknown. For this + case a call to __bound_init is performed in bcheck.c + when __bound_ptr_add, __bound_new_region, + __bound_delete_region called */ + + int sym_index = find_elf_sym(symtab_section, "__bound_init"); + if (sym_index) { + Section *init_section = find_section(s1, ".init"); + unsigned char *pinit = section_ptr_add(init_section, 5); + pinit[0] = 0xe8; + write32le(pinit + 1, -4); + put_elf_reloc(symtab_section, init_section, + init_section->data_offset - 4, R_386_PC32, sym_index); + } + else + tcc_warning("__bound_init not defined"); + } +#endif +} + +/* add tcc runtime libraries */ +ST_FUNC void tcc_add_runtime(TCCState *s1) +{ + tcc_add_pragma_libs(s1); + + /* add libc */ + if (!s1->nostdlib) { + tcc_add_library(s1, "c"); +#ifdef CONFIG_USE_LIBGCC + if (!s1->static_link) { + tcc_add_file(s1, TCC_LIBGCC, TCC_FILETYPE_BINARY); + } +#endif + tcc_add_support(s1, "libtcc1.a"); + } + + /* tcc_add_bcheck tries to relocate a call to __bound_init in _init so + libtcc1.a must be loaded before for __bound_init to be defined and + crtn.o must be loaded after to not finalize _init too early. */ + tcc_add_bcheck(s1); + + if (!s1->nostdlib) { + /* add crt end if not memory output */ + if (s1->output_type != TCC_OUTPUT_MEMORY) + tcc_add_crt(s1, "crtn.o"); + } +} + +/* add various standard linker symbols (must be done after the + sections are filled (for example after allocating common + symbols)) */ +ST_FUNC void tcc_add_linker_symbols(TCCState *s1) +{ + char buf[1024]; + int i; + Section *s; + + add_elf_sym(symtab_section, + text_section->data_offset, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + text_section->sh_num, "_etext"); + add_elf_sym(symtab_section, + data_section->data_offset, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + data_section->sh_num, "_edata"); + add_elf_sym(symtab_section, + bss_section->data_offset, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + bss_section->sh_num, "_end"); + /* horrible new standard ldscript defines */ + add_init_array_defines(s1, ".preinit_array"); + add_init_array_defines(s1, ".init_array"); + add_init_array_defines(s1, ".fini_array"); + + /* add start and stop symbols for sections whose name can be + expressed in C */ + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + if (s->sh_type == SHT_PROGBITS && + (s->sh_flags & SHF_ALLOC)) { + const char *p; + int ch; + + /* check if section name can be expressed in C */ + p = s->name; + for(;;) { + ch = *p; + if (!ch) + break; + if (!isid(ch) && !isnum(ch)) + goto next_sec; + p++; + } + snprintf(buf, sizeof(buf), "__start_%s", s->name); + add_elf_sym(symtab_section, + 0, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + s->sh_num, buf); + snprintf(buf, sizeof(buf), "__stop_%s", s->name); + add_elf_sym(symtab_section, + s->data_offset, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + s->sh_num, buf); + } + next_sec: ; + } +} + +static void tcc_output_binary(TCCState *s1, FILE *f, + const int *sec_order) +{ + Section *s; + int i, offset, size; + + offset = 0; + for(i=1;inb_sections;i++) { + s = s1->sections[sec_order[i]]; + if (s->sh_type != SHT_NOBITS && + (s->sh_flags & SHF_ALLOC)) { + while (offset < s->sh_offset) { + fputc(0, f); + offset++; + } + size = s->sh_size; + fwrite(s->data, 1, size, f); + offset += size; + } + } +} + +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) +#define HAVE_PHDR 1 +#define EXTRA_RELITEMS 14 + +/* move the relocation value from .dynsym to .got */ +void patch_dynsym_undef(TCCState *s1, Section *s) +{ + uint32_t *gotd = (void *)s1->got->data; + ElfW(Sym) *sym; + + gotd += 3; /* dummy entries in .got */ + /* relocate symbols in .dynsym */ + for_each_elem(s, 1, sym, ElfW(Sym)) { + if (sym->st_shndx == SHN_UNDEF) { + *gotd++ = sym->st_value + 6; /* XXX 6 is magic ? */ + sym->st_value = 0; + } + } +} +#else +#define HAVE_PHDR 1 +#define EXTRA_RELITEMS 9 + +/* zero plt offsets of weak symbols in .dynsym */ +void patch_dynsym_undef(TCCState *s1, Section *s) +{ + ElfW(Sym) *sym; + + for_each_elem(s, 1, sym, ElfW(Sym)) + if (sym->st_shndx == SHN_UNDEF && ELFW(ST_BIND)(sym->st_info) == STB_WEAK) + sym->st_value = 0; +} +#endif + +ST_FUNC void fill_got_entry(TCCState *s1, ElfW_Rel *rel) +{ + int sym_index = ELFW(R_SYM) (rel->r_info); + ElfW(Sym) *sym = &((ElfW(Sym) *) symtab_section->data)[sym_index]; + unsigned long offset; + + if (sym_index >= s1->nb_sym_attrs) + return; + offset = s1->sym_attrs[sym_index].got_offset; + section_reserve(s1->got, offset + PTR_SIZE); +#ifdef TCC_TARGET_X86_64 + /* only works for x86-64 */ + write32le(s1->got->data + offset + 4, sym->st_value >> 32); +#endif + write32le(s1->got->data + offset, sym->st_value & 0xffffffff); +} + +/* Perform relocation to GOT or PLT entries */ +ST_FUNC void fill_got(TCCState *s1) +{ + Section *s; + ElfW_Rel *rel; + int i; + + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + if (s->sh_type != SHT_RELX) + continue; + /* no need to handle got relocations */ + if (s->link != symtab_section) + continue; + for_each_elem(s, 0, rel, ElfW_Rel) { + switch (ELFW(R_TYPE) (rel->r_info)) { + case R_X86_64_GOT32: + case R_X86_64_GOTPCREL: + case R_X86_64_GOTPCRELX: + case R_X86_64_REX_GOTPCRELX: + case R_X86_64_PLT32: + fill_got_entry(s1, rel); + break; + } + } + } +} + +/* Bind symbols of executable: resolve undefined symbols from exported symbols + in shared libraries and export non local defined symbols to shared libraries + if -rdynamic switch was given on command line */ +static void bind_exe_dynsyms(TCCState *s1) +{ + const char *name; + int sym_index, index; + ElfW(Sym) *sym, *esym; + int type; + + /* Resolve undefined symbols from dynamic symbols. When there is a match: + - if STT_FUNC or STT_GNU_IFUNC symbol -> add it in PLT + - if STT_OBJECT symbol -> add it in .bss section with suitable reloc */ + for_each_elem(symtab_section, 1, sym, ElfW(Sym)) { + if (sym->st_shndx == SHN_UNDEF) { + name = (char *) symtab_section->link->data + sym->st_name; + sym_index = find_elf_sym(s1->dynsymtab_section, name); + if (sym_index) { + esym = &((ElfW(Sym) *)s1->dynsymtab_section->data)[sym_index]; + type = ELFW(ST_TYPE)(esym->st_info); + if ((type == STT_FUNC) || (type == STT_GNU_IFUNC)) { + /* Indirect functions shall have STT_FUNC type in executable + * dynsym section. Indeed, a dlsym call following a lazy + * resolution would pick the symbol value from the + * executable dynsym entry which would contain the address + * of the function wanted by the caller of dlsym instead of + * the address of the function that would return that + * address */ + put_got_entry(s1, R_JMP_SLOT, esym->st_size, + ELFW(ST_INFO)(STB_GLOBAL,STT_FUNC), + sym - (ElfW(Sym) *)symtab_section->data); + } else if (type == STT_OBJECT) { + unsigned long offset; + ElfW(Sym) *dynsym; + offset = bss_section->data_offset; + /* XXX: which alignment ? */ + offset = (offset + 16 - 1) & -16; + index = put_elf_sym(s1->dynsym, offset, esym->st_size, + esym->st_info, 0, bss_section->sh_num, + name); + /* Ensure R_COPY works for weak symbol aliases */ + if (ELFW(ST_BIND)(esym->st_info) == STB_WEAK) { + for_each_elem(s1->dynsymtab_section, 1, dynsym, ElfW(Sym)) { + if ((dynsym->st_value == esym->st_value) + && (ELFW(ST_BIND)(dynsym->st_info) == STB_GLOBAL)) { + char *dynname = (char *) s1->dynsymtab_section->link->data + + dynsym->st_name; + put_elf_sym(s1->dynsym, offset, dynsym->st_size, + dynsym->st_info, 0, + bss_section->sh_num, dynname); + break; + } + } + } + put_elf_reloc(s1->dynsym, bss_section, + offset, R_COPY, index); + offset += esym->st_size; + bss_section->data_offset = offset; + } + } else { + /* STB_WEAK undefined symbols are accepted */ + /* XXX: _fp_hw seems to be part of the ABI, so we ignore it */ + if (ELFW(ST_BIND)(sym->st_info) == STB_WEAK || + !strcmp(name, "_fp_hw")) { + } else { + tcc_error_noabort("undefined symbol '%s'", name); + } + } + } else if (s1->rdynamic && ELFW(ST_BIND)(sym->st_info) != STB_LOCAL) { + /* if -rdynamic option, then export all non local symbols */ + name = (char *) symtab_section->link->data + sym->st_name; + put_elf_sym(s1->dynsym, sym->st_value, sym->st_size, sym->st_info, + 0, sym->st_shndx, name); + } + } +} + +/* Bind symbols of libraries: export non local symbols of executable that + resolve undefined symbols of shared libraries */ +static void bind_libs_dynsyms(TCCState *s1) +{ + const char *name; + int sym_index; + ElfW(Sym) *sym, *esym; + + /* now look at unresolved dynamic symbols and export + corresponding symbol */ + for_each_elem(s1->dynsymtab_section, 1, esym, ElfW(Sym)) { + name = (char *) s1->dynsymtab_section->link->data + esym->st_name; + sym_index = find_elf_sym(symtab_section, name); + if (sym_index) { + /* XXX: avoid adding a symbol if already present because of + -rdynamic ? */ + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + if (sym->st_shndx != SHN_UNDEF) + put_elf_sym(s1->dynsym, sym->st_value, sym->st_size, + sym->st_info, 0, sym->st_shndx, name); + } else if (esym->st_shndx == SHN_UNDEF) { + /* weak symbols can stay undefined */ + if (ELFW(ST_BIND)(esym->st_info) != STB_WEAK) + tcc_warning("undefined dynamic symbol '%s'", name); + } + } +} + +/* Export all non local symbols (for shared libraries) */ +static void export_global_syms(TCCState *s1) +{ + int nb_syms, dynindex, index; + const char *name; + ElfW(Sym) *sym; + + nb_syms = symtab_section->data_offset / sizeof(ElfW(Sym)); + s1->symtab_to_dynsym = tcc_mallocz(sizeof(int) * nb_syms); + for_each_elem(symtab_section, 1, sym, ElfW(Sym)) { + if (ELFW(ST_BIND)(sym->st_info) != STB_LOCAL) { + name = (char *) symtab_section->link->data + sym->st_name; + dynindex = put_elf_sym(s1->dynsym, sym->st_value, sym->st_size, + sym->st_info, 0, sym->st_shndx, name); + index = sym - (ElfW(Sym) *) symtab_section->data; + s1->symtab_to_dynsym[index] = dynindex; + } + } +} + +/* relocate the PLT: compute addresses and offsets in the PLT now that final + address for PLT and GOT are known (see fill_program_header) */ +ST_FUNC void relocate_plt(TCCState *s1) +{ + uint8_t *p, *p_end; + + if (!s1->plt) + return; + + p = s1->plt->data; + p_end = p + s1->plt->data_offset; + if (p < p_end) { +#if defined(TCC_TARGET_I386) + write32le(p + 2, read32le(p + 2) + s1->got->sh_addr); + write32le(p + 8, read32le(p + 8) + s1->got->sh_addr); + p += 16; + while (p < p_end) { + write32le(p + 2, read32le(p + 2) + s1->got->sh_addr); + p += 16; + } +#elif defined(TCC_TARGET_X86_64) + int x = s1->got->sh_addr - s1->plt->sh_addr - 6; + write32le(p + 2, read32le(p + 2) + x); + write32le(p + 8, read32le(p + 8) + x - 6); + p += 16; + while (p < p_end) { + write32le(p + 2, read32le(p + 2) + x + s1->plt->data - p); + p += 16; + } +#elif defined(TCC_TARGET_ARM) + int x; + x=s1->got->sh_addr - s1->plt->sh_addr - 12; + p += 16; + while (p < p_end) { + if (read32le(p) == 0x46c04778) /* PLT Thumb stub present */ + p += 4; + write32le(p + 12, x + read32le(p + 12) + s1->plt->data - p); + p += 16; + } +#elif defined(TCC_TARGET_ARM64) + uint64_t plt = s1->plt->sh_addr; + uint64_t got = s1->got->sh_addr; + uint64_t off = (got >> 12) - (plt >> 12); + if ((off + ((uint32_t)1 << 20)) >> 21) + tcc_error("Failed relocating PLT (off=0x%lx, got=0x%lx, plt=0x%lx)", off, got, plt); + write32le(p, 0xa9bf7bf0); // stp x16,x30,[sp,#-16]! + write32le(p + 4, (0x90000010 | // adrp x16,... + (off & 0x1ffffc) << 3 | (off & 3) << 29)); + write32le(p + 8, (0xf9400211 | // ldr x17,[x16,#...] + (got & 0xff8) << 7)); + write32le(p + 12, (0x91000210 | // add x16,x16,#... + (got & 0xfff) << 10)); + write32le(p + 16, 0xd61f0220); // br x17 + write32le(p + 20, 0xd503201f); // nop + write32le(p + 24, 0xd503201f); // nop + write32le(p + 28, 0xd503201f); // nop + p += 32; + while (p < p_end) { + uint64_t pc = plt + (p - s1->plt->data); + uint64_t addr = got + read64le(p); + uint64_t off = (addr >> 12) - (pc >> 12); + if ((off + ((uint32_t)1 << 20)) >> 21) + tcc_error("Failed relocating PLT (off=0x%lx, addr=0x%lx, pc=0x%lx)", off, addr, pc); + write32le(p, (0x90000010 | // adrp x16,... + (off & 0x1ffffc) << 3 | (off & 3) << 29)); + write32le(p + 4, (0xf9400211 | // ldr x17,[x16,#...] + (addr & 0xff8) << 7)); + write32le(p + 8, (0x91000210 | // add x16,x16,#... + (addr & 0xfff) << 10)); + write32le(p + 12, 0xd61f0220); // br x17 + p += 16; + } +#elif defined(TCC_TARGET_C67) + /* XXX: TODO */ +#else +#error unsupported CPU +#endif + } +} + +/* Allocate strings for section names and decide if an unallocated section + should be output. + + NOTE: the strsec section comes last, so its size is also correct ! */ +static void alloc_sec_names(TCCState *s1, int file_type, Section *strsec) +{ + int i; + Section *s; + + /* Allocate strings for section names */ + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + s->sh_name = put_elf_str(strsec, s->name); + /* when generating a DLL, we include relocations but we may + patch them */ + if (file_type == TCC_OUTPUT_DLL && + s->sh_type == SHT_RELX && + !(s->sh_flags & SHF_ALLOC)) { + /* gr: avoid bogus relocs for empty (debug) sections */ + if (s1->sections[s->sh_info]->sh_flags & SHF_ALLOC) + prepare_dynamic_rel(s1, s); + else if (s1->do_debug) + s->sh_size = s->data_offset; + } else if (s1->do_debug || + file_type == TCC_OUTPUT_OBJ || + file_type == TCC_OUTPUT_EXE || + (s->sh_flags & SHF_ALLOC) || + i == (s1->nb_sections - 1)) { + /* we output all sections if debug or object file */ + s->sh_size = s->data_offset; + } + } +} + +/* Info to be copied in dynamic section */ +struct dyn_inf { + Section *dynamic; + Section *dynstr; + unsigned long dyn_rel_off; + addr_t rel_addr; + addr_t rel_size; +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + addr_t bss_addr; + addr_t bss_size; +#endif +}; + +/* Assign sections to segments and decide how are sections laid out when loaded + in memory. This function also fills corresponding program headers. */ +static int layout_sections(TCCState *s1, ElfW(Phdr) *phdr, int phnum, + Section *interp, Section* strsec, + struct dyn_inf *dyninf, int *sec_order) +{ + int i, j, k, file_type, sh_order_index, file_offset; + unsigned long s_align; + long long tmp; + addr_t addr; + ElfW(Phdr) *ph; + Section *s; + + file_type = s1->output_type; + sh_order_index = 1; + file_offset = 0; + if (s1->output_format == TCC_OUTPUT_FORMAT_ELF) + file_offset = sizeof(ElfW(Ehdr)) + phnum * sizeof(ElfW(Phdr)); + s_align = ELF_PAGE_SIZE; + if (s1->section_align) + s_align = s1->section_align; + + if (phnum > 0) { + if (s1->has_text_addr) { + int a_offset, p_offset; + addr = s1->text_addr; + /* we ensure that (addr % ELF_PAGE_SIZE) == file_offset % + ELF_PAGE_SIZE */ + a_offset = (int) (addr & (s_align - 1)); + p_offset = file_offset & (s_align - 1); + if (a_offset < p_offset) + a_offset += s_align; + file_offset += (a_offset - p_offset); + } else { + if (file_type == TCC_OUTPUT_DLL) + addr = 0; + else + addr = ELF_START_ADDR; + /* compute address after headers */ + addr += (file_offset & (s_align - 1)); + } + + ph = &phdr[0]; + /* Leave one program headers for the program interpreter and one for + the program header table itself if needed. These are done later as + they require section layout to be done first. */ + if (interp) + ph += 1 + HAVE_PHDR; + + /* dynamic relocation table information, for .dynamic section */ + dyninf->rel_addr = dyninf->rel_size = 0; +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + dyninf->bss_addr = dyninf->bss_size = 0; +#endif + + for(j = 0; j < 2; j++) { + ph->p_type = PT_LOAD; + if (j == 0) + ph->p_flags = PF_R | PF_X; + else + ph->p_flags = PF_R | PF_W; + ph->p_align = s_align; + + /* Decide the layout of sections loaded in memory. This must + be done before program headers are filled since they contain + info about the layout. We do the following ordering: interp, + symbol tables, relocations, progbits, nobits */ + /* XXX: do faster and simpler sorting */ + for(k = 0; k < 5; k++) { + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + /* compute if section should be included */ + if (j == 0) { + if ((s->sh_flags & (SHF_ALLOC | SHF_WRITE)) != + SHF_ALLOC) + continue; + } else { + if ((s->sh_flags & (SHF_ALLOC | SHF_WRITE)) != + (SHF_ALLOC | SHF_WRITE)) + continue; + } + if (s == interp) { + if (k != 0) + continue; + } else if (s->sh_type == SHT_DYNSYM || + s->sh_type == SHT_STRTAB || + s->sh_type == SHT_HASH) { + if (k != 1) + continue; + } else if (s->sh_type == SHT_RELX) { + if (k != 2) + continue; + } else if (s->sh_type == SHT_NOBITS) { + if (k != 4) + continue; + } else { + if (k != 3) + continue; + } + sec_order[sh_order_index++] = i; + + /* section matches: we align it and add its size */ + tmp = addr; + addr = (addr + s->sh_addralign - 1) & + ~(s->sh_addralign - 1); + file_offset += (int) ( addr - tmp ); + s->sh_offset = file_offset; + s->sh_addr = addr; + + /* update program header infos */ + if (ph->p_offset == 0) { + ph->p_offset = file_offset; + ph->p_vaddr = addr; + ph->p_paddr = ph->p_vaddr; + } + /* update dynamic relocation infos */ + if (s->sh_type == SHT_RELX) { +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + if (!strcmp(strsec->data + s->sh_name, ".rel.got")) { + dyninf->rel_addr = addr; + dyninf->rel_size += s->sh_size; /* XXX only first rel. */ + } + if (!strcmp(strsec->data + s->sh_name, ".rel.bss")) { + dyninf->bss_addr = addr; + dyninf->bss_size = s->sh_size; /* XXX only first rel. */ + } +#else + if (dyninf->rel_size == 0) + dyninf->rel_addr = addr; + dyninf->rel_size += s->sh_size; +#endif + } + addr += s->sh_size; + if (s->sh_type != SHT_NOBITS) + file_offset += s->sh_size; + } + } + if (j == 0) { + /* Make the first PT_LOAD segment include the program + headers itself (and the ELF header as well), it'll + come out with same memory use but will make various + tools like binutils strip work better. */ + ph->p_offset &= ~(ph->p_align - 1); + ph->p_vaddr &= ~(ph->p_align - 1); + ph->p_paddr &= ~(ph->p_align - 1); + } + ph->p_filesz = file_offset - ph->p_offset; + ph->p_memsz = addr - ph->p_vaddr; + ph++; + if (j == 0) { + if (s1->output_format == TCC_OUTPUT_FORMAT_ELF) { + /* if in the middle of a page, we duplicate the page in + memory so that one copy is RX and the other is RW */ + if ((addr & (s_align - 1)) != 0) + addr += s_align; + } else { + addr = (addr + s_align - 1) & ~(s_align - 1); + file_offset = (file_offset + s_align - 1) & ~(s_align - 1); + } + } + } + } + + /* all other sections come after */ + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + if (phnum > 0 && (s->sh_flags & SHF_ALLOC)) + continue; + sec_order[sh_order_index++] = i; + + file_offset = (file_offset + s->sh_addralign - 1) & + ~(s->sh_addralign - 1); + s->sh_offset = file_offset; + if (s->sh_type != SHT_NOBITS) + file_offset += s->sh_size; + } + + return file_offset; +} + +static void fill_unloadable_phdr(ElfW(Phdr) *phdr, int phnum, Section *interp, + Section *dynamic) +{ + ElfW(Phdr) *ph; + + /* if interpreter, then add corresponding program header */ + if (interp) { + ph = &phdr[0]; + + if (HAVE_PHDR) + { + int len = phnum * sizeof(ElfW(Phdr)); + + ph->p_type = PT_PHDR; + ph->p_offset = sizeof(ElfW(Ehdr)); + ph->p_vaddr = interp->sh_addr - len; + ph->p_paddr = ph->p_vaddr; + ph->p_filesz = ph->p_memsz = len; + ph->p_flags = PF_R | PF_X; + ph->p_align = 4; /* interp->sh_addralign; */ + ph++; + } + + ph->p_type = PT_INTERP; + ph->p_offset = interp->sh_offset; + ph->p_vaddr = interp->sh_addr; + ph->p_paddr = ph->p_vaddr; + ph->p_filesz = interp->sh_size; + ph->p_memsz = interp->sh_size; + ph->p_flags = PF_R; + ph->p_align = interp->sh_addralign; + } + + /* if dynamic section, then add corresponding program header */ + if (dynamic) { + ph = &phdr[phnum - 1]; + + ph->p_type = PT_DYNAMIC; + ph->p_offset = dynamic->sh_offset; + ph->p_vaddr = dynamic->sh_addr; + ph->p_paddr = ph->p_vaddr; + ph->p_filesz = dynamic->sh_size; + ph->p_memsz = dynamic->sh_size; + ph->p_flags = PF_R | PF_W; + ph->p_align = dynamic->sh_addralign; + } +} + +/* Fill the dynamic section with tags describing the address and size of + sections */ +static void fill_dynamic(TCCState *s1, struct dyn_inf *dyninf) +{ + Section *dynamic; + + dynamic = dyninf->dynamic; + + /* put dynamic section entries */ + dynamic->data_offset = dyninf->dyn_rel_off; + put_dt(dynamic, DT_HASH, s1->dynsym->hash->sh_addr); + put_dt(dynamic, DT_STRTAB, dyninf->dynstr->sh_addr); + put_dt(dynamic, DT_SYMTAB, s1->dynsym->sh_addr); + put_dt(dynamic, DT_STRSZ, dyninf->dynstr->data_offset); + put_dt(dynamic, DT_SYMENT, sizeof(ElfW(Sym))); +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + put_dt(dynamic, DT_RELA, dyninf->rel_addr); + put_dt(dynamic, DT_RELASZ, dyninf->rel_size); + put_dt(dynamic, DT_RELAENT, sizeof(ElfW_Rel)); +#else +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + put_dt(dynamic, DT_PLTGOT, s1->got->sh_addr); + put_dt(dynamic, DT_PLTRELSZ, dyninf->rel_size); + put_dt(dynamic, DT_JMPREL, dyninf->rel_addr); + put_dt(dynamic, DT_PLTREL, DT_REL); + put_dt(dynamic, DT_REL, dyninf->bss_addr); + put_dt(dynamic, DT_RELSZ, dyninf->bss_size); +#else + put_dt(dynamic, DT_REL, dyninf->rel_addr); + put_dt(dynamic, DT_RELSZ, dyninf->rel_size); + put_dt(dynamic, DT_RELENT, sizeof(ElfW_Rel)); +#endif +#endif + if (s1->do_debug) + put_dt(dynamic, DT_DEBUG, 0); + put_dt(dynamic, DT_NULL, 0); +} + +/* Relocate remaining sections and symbols (that is those not related to + dynamic linking) */ +static int final_sections_reloc(TCCState *s1) +{ + int i; + Section *s; + + relocate_syms(s1, 0); + + if (s1->nb_errors != 0) + return -1; + + /* relocate sections */ + /* XXX: ignore sections with allocated relocations ? */ + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; +#ifdef TCC_TARGET_I386 + if (s->reloc && s != s1->got && (s->sh_flags & SHF_ALLOC)) //gr + /* On X86 gdb 7.3 works in any case but gdb 6.6 will crash if SHF_ALLOC + checking is removed */ +#else + if (s->reloc && s != s1->got) + /* On X86_64 gdb 7.3 will crash if SHF_ALLOC checking is present */ +#endif + relocate_section(s1, s); + } + + /* relocate relocation entries if the relocation tables are + allocated in the executable */ + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + if ((s->sh_flags & SHF_ALLOC) && + s->sh_type == SHT_RELX) { + relocate_rel(s1, s); + } + } + return 0; +} + +/* Create an ELF file on disk. + This function handle ELF specific layout requirements */ +static void tcc_output_elf(TCCState *s1, FILE *f, int phnum, ElfW(Phdr) *phdr, + int file_offset, int *sec_order) +{ + int i, shnum, offset, size, file_type; + Section *s; + ElfW(Ehdr) ehdr; + ElfW(Shdr) shdr, *sh; + + file_type = s1->output_type; + shnum = s1->nb_sections; + + memset(&ehdr, 0, sizeof(ehdr)); + + if (phnum > 0) { + ehdr.e_phentsize = sizeof(ElfW(Phdr)); + ehdr.e_phnum = phnum; + ehdr.e_phoff = sizeof(ElfW(Ehdr)); + } + + /* align to 4 */ + file_offset = (file_offset + 3) & -4; + + /* fill header */ + ehdr.e_ident[0] = ELFMAG0; + ehdr.e_ident[1] = ELFMAG1; + ehdr.e_ident[2] = ELFMAG2; + ehdr.e_ident[3] = ELFMAG3; + ehdr.e_ident[4] = ELFCLASSW; + ehdr.e_ident[5] = ELFDATA2LSB; + ehdr.e_ident[6] = EV_CURRENT; +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) + ehdr.e_ident[EI_OSABI] = ELFOSABI_FREEBSD; +#endif +#ifdef TCC_TARGET_ARM +#ifdef TCC_ARM_EABI + ehdr.e_ident[EI_OSABI] = 0; + ehdr.e_flags = EF_ARM_EABI_VER4; + if (file_type == TCC_OUTPUT_EXE || file_type == TCC_OUTPUT_DLL) + ehdr.e_flags |= EF_ARM_HASENTRY; + if (s1->float_abi == ARM_HARD_FLOAT) + ehdr.e_flags |= EF_ARM_VFP_FLOAT; + else + ehdr.e_flags |= EF_ARM_SOFT_FLOAT; +#else + ehdr.e_ident[EI_OSABI] = ELFOSABI_ARM; +#endif +#endif + switch(file_type) { + default: + case TCC_OUTPUT_EXE: + ehdr.e_type = ET_EXEC; + ehdr.e_entry = get_elf_sym_addr(s1, "_start", 1); + break; + case TCC_OUTPUT_DLL: + ehdr.e_type = ET_DYN; + ehdr.e_entry = text_section->sh_addr; /* XXX: is it correct ? */ + break; + case TCC_OUTPUT_OBJ: + ehdr.e_type = ET_REL; + break; + } + ehdr.e_machine = EM_TCC_TARGET; + ehdr.e_version = EV_CURRENT; + ehdr.e_shoff = file_offset; + ehdr.e_ehsize = sizeof(ElfW(Ehdr)); + ehdr.e_shentsize = sizeof(ElfW(Shdr)); + ehdr.e_shnum = shnum; + ehdr.e_shstrndx = shnum - 1; + + fwrite(&ehdr, 1, sizeof(ElfW(Ehdr)), f); + fwrite(phdr, 1, phnum * sizeof(ElfW(Phdr)), f); + offset = sizeof(ElfW(Ehdr)) + phnum * sizeof(ElfW(Phdr)); + + sort_syms(s1, symtab_section); + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[sec_order[i]]; + if (s->sh_type != SHT_NOBITS) { + if (s->sh_type == SHT_DYNSYM) + patch_dynsym_undef(s1, s); + while (offset < s->sh_offset) { + fputc(0, f); + offset++; + } + size = s->sh_size; + if (size) + fwrite(s->data, 1, size, f); + offset += size; + } + } + + /* output section headers */ + while (offset < ehdr.e_shoff) { + fputc(0, f); + offset++; + } + + for(i = 0; i < s1->nb_sections; i++) { + sh = &shdr; + memset(sh, 0, sizeof(ElfW(Shdr))); + s = s1->sections[i]; + if (s) { + sh->sh_name = s->sh_name; + sh->sh_type = s->sh_type; + sh->sh_flags = s->sh_flags; + sh->sh_entsize = s->sh_entsize; + sh->sh_info = s->sh_info; + if (s->link) + sh->sh_link = s->link->sh_num; + sh->sh_addralign = s->sh_addralign; + sh->sh_addr = s->sh_addr; + sh->sh_offset = s->sh_offset; + sh->sh_size = s->sh_size; + } + fwrite(sh, 1, sizeof(ElfW(Shdr)), f); + } +} + +/* Write an elf, coff or "binary" file */ +static int tcc_write_elf_file(TCCState *s1, const char *filename, int phnum, + ElfW(Phdr) *phdr, int file_offset, int *sec_order) +{ + int fd, mode, file_type; + FILE *f; + + file_type = s1->output_type; + if (file_type == TCC_OUTPUT_OBJ) + mode = 0666; + else + mode = 0777; + unlink(filename); + fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, mode); + if (fd < 0) { + tcc_error_noabort("could not write '%s'", filename); + return -1; + } + f = fdopen(fd, "wb"); + if (s1->verbose) + printf("<- %s\n", filename); + +#ifdef TCC_TARGET_COFF + if (s1->output_format == TCC_OUTPUT_FORMAT_COFF) + tcc_output_coff(s1, f); + else +#endif + if (s1->output_format == TCC_OUTPUT_FORMAT_ELF) + tcc_output_elf(s1, f, phnum, phdr, file_offset, sec_order); + else + tcc_output_binary(s1, f, sec_order); + fclose(f); + + return 0; +} + +/* Output an elf, coff or binary file */ +/* XXX: suppress unneeded sections */ +static int elf_output_file(TCCState *s1, const char *filename) +{ + int i, ret, phnum, shnum, file_type, file_offset, *sec_order; + struct dyn_inf dyninf; + ElfW(Phdr) *phdr; + ElfW(Sym) *sym; + Section *strsec, *interp, *dynamic, *dynstr; + + file_type = s1->output_type; + s1->nb_errors = 0; + + /* if linking, also link in runtime libraries (libc, libgcc, etc.) */ + if (file_type != TCC_OUTPUT_OBJ) { + tcc_add_runtime(s1); + } + + phdr = NULL; + sec_order = NULL; + interp = dynamic = dynstr = NULL; /* avoid warning */ + dyninf.dyn_rel_off = 0; /* avoid warning */ + + if (file_type != TCC_OUTPUT_OBJ) { + relocate_common_syms(); + + tcc_add_linker_symbols(s1); + + if (!s1->static_link) { + if (file_type == TCC_OUTPUT_EXE) { + char *ptr; + /* allow override the dynamic loader */ + const char *elfint = getenv("LD_SO"); + if (elfint == NULL) + elfint = DEFAULT_ELFINTERP(s1); + /* add interpreter section only if executable */ + interp = new_section(s1, ".interp", SHT_PROGBITS, SHF_ALLOC); + interp->sh_addralign = 1; + ptr = section_ptr_add(interp, 1 + strlen(elfint)); + strcpy(ptr, elfint); + } + + /* add dynamic symbol table */ + s1->dynsym = new_symtab(s1, ".dynsym", SHT_DYNSYM, SHF_ALLOC, + ".dynstr", + ".hash", SHF_ALLOC); + dynstr = s1->dynsym->link; + + /* add dynamic section */ + dynamic = new_section(s1, ".dynamic", SHT_DYNAMIC, + SHF_ALLOC | SHF_WRITE); + dynamic->link = dynstr; + dynamic->sh_entsize = sizeof(ElfW(Dyn)); + + build_got(s1); + + if (file_type == TCC_OUTPUT_EXE) { + bind_exe_dynsyms(s1); + + if (s1->nb_errors) { + ret = -1; + goto the_end; + } + + bind_libs_dynsyms(s1); + } else /* shared library case: simply export all global symbols */ + export_global_syms(s1); + + build_got_entries(s1); + + /* add a list of needed dlls */ + for(i = 0; i < s1->nb_loaded_dlls; i++) { + DLLReference *dllref = s1->loaded_dlls[i]; + if (dllref->level == 0) + put_dt(dynamic, DT_NEEDED, put_elf_str(dynstr, dllref->name)); + } + + if (s1->rpath) + put_dt(dynamic, DT_RPATH, put_elf_str(dynstr, s1->rpath)); + + /* XXX: currently, since we do not handle PIC code, we + must relocate the readonly segments */ + if (file_type == TCC_OUTPUT_DLL) { + if (s1->soname) + put_dt(dynamic, DT_SONAME, put_elf_str(dynstr, s1->soname)); + put_dt(dynamic, DT_TEXTREL, 0); + } + + if (s1->symbolic) + put_dt(dynamic, DT_SYMBOLIC, 0); + + /* add necessary space for other entries */ + dyninf.dyn_rel_off = dynamic->data_offset; + dynamic->data_offset += sizeof(ElfW(Dyn)) * EXTRA_RELITEMS; + } else { + /* still need to build got entries in case of static link */ + build_got_entries(s1); + } + } + + /* we add a section for symbols */ + strsec = new_section(s1, ".shstrtab", SHT_STRTAB, 0); + put_elf_str(strsec, ""); + + /* compute number of sections */ + shnum = s1->nb_sections; + + /* this array is used to reorder sections in the output file */ + sec_order = tcc_malloc(sizeof(int) * shnum); + sec_order[0] = 0; + + /* compute number of program headers */ + switch(file_type) { + default: + case TCC_OUTPUT_OBJ: + phnum = 0; + break; + case TCC_OUTPUT_EXE: + if (!s1->static_link) + phnum = 4 + HAVE_PHDR; + else + phnum = 2; + break; + case TCC_OUTPUT_DLL: + phnum = 3; + break; + } + + /* Allocate strings for section names */ + alloc_sec_names(s1, file_type, strsec); + + /* allocate program segment headers */ + phdr = tcc_mallocz(phnum * sizeof(ElfW(Phdr))); + + /* compute section to program header mapping */ + file_offset = layout_sections(s1, phdr, phnum, interp, strsec, &dyninf, + sec_order); + + /* Fill remaining program header and finalize relocation related to dynamic + linking. */ + if (phnum > 0) { + fill_unloadable_phdr(phdr, phnum, interp, dynamic); + if (dynamic) { + dyninf.dynamic = dynamic; + dyninf.dynstr = dynstr; + + fill_dynamic(s1, &dyninf); + + /* put in GOT the dynamic section address and relocate PLT */ + write32le(s1->got->data, dynamic->sh_addr); + if (file_type == TCC_OUTPUT_EXE +#if defined(TCC_OUTPUT_DLL_WITH_PLT) + || file_type == TCC_OUTPUT_DLL +#endif + ) + relocate_plt(s1); + + /* relocate symbols in .dynsym now that final addresses are known */ + for_each_elem(s1->dynsym, 1, sym, ElfW(Sym)) { + if (sym->st_shndx == SHN_UNDEF) { + /* relocate to PLT if symbol corresponds to a PLT entry, + but not if it's a weak symbol */ + if (ELFW(ST_BIND)(sym->st_info) == STB_WEAK) + sym->st_value = 0; + else if (sym->st_value) + sym->st_value += s1->plt->sh_addr; + } else if (sym->st_shndx < SHN_LORESERVE) { + /* do symbol relocation */ + sym->st_value += s1->sections[sym->st_shndx]->sh_addr; + } + } + } + } + + /* if building executable or DLL, then relocate each section + except the GOT which is already relocated */ + if (file_type != TCC_OUTPUT_OBJ) { + ret = final_sections_reloc(s1); + if (ret) + goto the_end; + } + + /* Perform relocation to GOT or PLT entries */ + if (file_type == TCC_OUTPUT_EXE && s1->static_link) + fill_got(s1); + + /* Create the ELF file with name 'filename' */ + ret = tcc_write_elf_file(s1, filename, phnum, phdr, file_offset, sec_order); + if (s1->do_strip) { + int rc; + const char *strip_cmd = "sstrip "; // super strip utility from ELFkickers + const char *null_dev = " 2> /dev/null"; + char buf[1050]; + snprintf(buf, sizeof(buf), "%s%s%s", strip_cmd, filename, null_dev); + rc = system(buf); + if (rc) + system(buf+1); // call a strip utility from binutils + } + the_end: + tcc_free(s1->symtab_to_dynsym); + tcc_free(sec_order); + tcc_free(phdr); + tcc_free(s1->sym_attrs); + s1->sym_attrs = NULL; + return ret; +} + +LIBTCCAPI int tcc_output_file(TCCState *s, const char *filename) +{ + int ret; +#ifdef TCC_TARGET_PE + if (s->output_type != TCC_OUTPUT_OBJ) { + ret = pe_output_file(s, filename); + } else +#endif + ret = elf_output_file(s, filename); + return ret; +} + +static void *load_data(int fd, unsigned long file_offset, unsigned long size) +{ + void *data; + + data = tcc_malloc(size); + lseek(fd, file_offset, SEEK_SET); + read(fd, data, size); + return data; +} + +typedef struct SectionMergeInfo { + Section *s; /* corresponding existing section */ + unsigned long offset; /* offset of the new section in the existing section */ + uint8_t new_section; /* true if section 's' was added */ + uint8_t link_once; /* true if link once section */ +} SectionMergeInfo; + +/* load an object file and merge it with current files */ +/* XXX: handle correctly stab (debug) info */ +ST_FUNC int tcc_load_object_file(TCCState *s1, + int fd, unsigned long file_offset) +{ + ElfW(Ehdr) ehdr; + ElfW(Shdr) *shdr, *sh; + int size, i, j, offset, offseti, nb_syms, sym_index, ret; + unsigned char *strsec, *strtab; + int *old_to_new_syms; + char *sh_name, *name; + SectionMergeInfo *sm_table, *sm; + ElfW(Sym) *sym, *symtab; + ElfW_Rel *rel; + Section *s; + + int stab_index; + int stabstr_index; + + stab_index = stabstr_index = 0; + + if (read(fd, &ehdr, sizeof(ehdr)) != sizeof(ehdr)) + goto fail1; + if (ehdr.e_ident[0] != ELFMAG0 || + ehdr.e_ident[1] != ELFMAG1 || + ehdr.e_ident[2] != ELFMAG2 || + ehdr.e_ident[3] != ELFMAG3) + goto fail1; + /* test if object file */ + if (ehdr.e_type != ET_REL) + goto fail1; + /* test CPU specific stuff */ + if (ehdr.e_ident[5] != ELFDATA2LSB || + ehdr.e_machine != EM_TCC_TARGET) { + fail1: + tcc_error_noabort("invalid object file"); + return -1; + } + /* read sections */ + shdr = load_data(fd, file_offset + ehdr.e_shoff, + sizeof(ElfW(Shdr)) * ehdr.e_shnum); + sm_table = tcc_mallocz(sizeof(SectionMergeInfo) * ehdr.e_shnum); + + /* load section names */ + sh = &shdr[ehdr.e_shstrndx]; + strsec = load_data(fd, file_offset + sh->sh_offset, sh->sh_size); + + /* load symtab and strtab */ + old_to_new_syms = NULL; + symtab = NULL; + strtab = NULL; + nb_syms = 0; + for(i = 1; i < ehdr.e_shnum; i++) { + sh = &shdr[i]; + if (sh->sh_type == SHT_SYMTAB) { + if (symtab) { + tcc_error_noabort("object must contain only one symtab"); + fail: + ret = -1; + goto the_end; + } + nb_syms = sh->sh_size / sizeof(ElfW(Sym)); + symtab = load_data(fd, file_offset + sh->sh_offset, sh->sh_size); + sm_table[i].s = symtab_section; + + /* now load strtab */ + sh = &shdr[sh->sh_link]; + strtab = load_data(fd, file_offset + sh->sh_offset, sh->sh_size); + } + } + + /* now examine each section and try to merge its content with the + ones in memory */ + for(i = 1; i < ehdr.e_shnum; i++) { + /* no need to examine section name strtab */ + if (i == ehdr.e_shstrndx) + continue; + sh = &shdr[i]; + sh_name = (char *) strsec + sh->sh_name; + /* ignore sections types we do not handle */ + if (sh->sh_type != SHT_PROGBITS && + sh->sh_type != SHT_RELX && +#ifdef TCC_ARM_EABI + sh->sh_type != SHT_ARM_EXIDX && +#endif + sh->sh_type != SHT_NOBITS && + sh->sh_type != SHT_PREINIT_ARRAY && + sh->sh_type != SHT_INIT_ARRAY && + sh->sh_type != SHT_FINI_ARRAY && + strcmp(sh_name, ".stabstr") + ) + continue; + if (sh->sh_addralign < 1) + sh->sh_addralign = 1; + /* find corresponding section, if any */ + for(j = 1; j < s1->nb_sections;j++) { + s = s1->sections[j]; + if (!strcmp(s->name, sh_name)) { + if (!strncmp(sh_name, ".gnu.linkonce", + sizeof(".gnu.linkonce") - 1)) { + /* if a 'linkonce' section is already present, we + do not add it again. It is a little tricky as + symbols can still be defined in + it. */ + sm_table[i].link_once = 1; + goto next; + } else { + goto found; + } + } + } + /* not found: create new section */ + s = new_section(s1, sh_name, sh->sh_type, sh->sh_flags); + /* take as much info as possible from the section. sh_link and + sh_info will be updated later */ + s->sh_addralign = sh->sh_addralign; + s->sh_entsize = sh->sh_entsize; + sm_table[i].new_section = 1; + found: + if (sh->sh_type != s->sh_type) { + tcc_error_noabort("invalid section type"); + goto fail; + } + + /* align start of section */ + offset = s->data_offset; + + if (0 == strcmp(sh_name, ".stab")) { + stab_index = i; + goto no_align; + } + if (0 == strcmp(sh_name, ".stabstr")) { + stabstr_index = i; + goto no_align; + } + + size = sh->sh_addralign - 1; + offset = (offset + size) & ~size; + if (sh->sh_addralign > s->sh_addralign) + s->sh_addralign = sh->sh_addralign; + s->data_offset = offset; + no_align: + sm_table[i].offset = offset; + sm_table[i].s = s; + /* concatenate sections */ + size = sh->sh_size; + if (sh->sh_type != SHT_NOBITS) { + unsigned char *ptr; + lseek(fd, file_offset + sh->sh_offset, SEEK_SET); + ptr = section_ptr_add(s, size); + read(fd, ptr, size); + } else { + s->data_offset += size; + } + next: ; + } + + /* gr relocate stab strings */ + if (stab_index && stabstr_index) { + Stab_Sym *a, *b; + unsigned o; + s = sm_table[stab_index].s; + a = (Stab_Sym *)(s->data + sm_table[stab_index].offset); + b = (Stab_Sym *)(s->data + s->data_offset); + o = sm_table[stabstr_index].offset; + while (a < b) + a->n_strx += o, a++; + } + + /* second short pass to update sh_link and sh_info fields of new + sections */ + for(i = 1; i < ehdr.e_shnum; i++) { + s = sm_table[i].s; + if (!s || !sm_table[i].new_section) + continue; + sh = &shdr[i]; + if (sh->sh_link > 0) + s->link = sm_table[sh->sh_link].s; + if (sh->sh_type == SHT_RELX) { + s->sh_info = sm_table[sh->sh_info].s->sh_num; + /* update backward link */ + s1->sections[s->sh_info]->reloc = s; + } + } + sm = sm_table; + + /* resolve symbols */ + old_to_new_syms = tcc_mallocz(nb_syms * sizeof(int)); + + sym = symtab + 1; + for(i = 1; i < nb_syms; i++, sym++) { + if (sym->st_shndx != SHN_UNDEF && + sym->st_shndx < SHN_LORESERVE) { + sm = &sm_table[sym->st_shndx]; + if (sm->link_once) { + /* if a symbol is in a link once section, we use the + already defined symbol. It is very important to get + correct relocations */ + if (ELFW(ST_BIND)(sym->st_info) != STB_LOCAL) { + name = (char *) strtab + sym->st_name; + sym_index = find_elf_sym(symtab_section, name); + if (sym_index) + old_to_new_syms[i] = sym_index; + } + continue; + } + /* if no corresponding section added, no need to add symbol */ + if (!sm->s) + continue; + /* convert section number */ + sym->st_shndx = sm->s->sh_num; + /* offset value */ + sym->st_value += sm->offset; + } + /* add symbol */ + name = (char *) strtab + sym->st_name; + sym_index = add_elf_sym(symtab_section, sym->st_value, sym->st_size, + sym->st_info, sym->st_other, + sym->st_shndx, name); + old_to_new_syms[i] = sym_index; + } + + /* third pass to patch relocation entries */ + for(i = 1; i < ehdr.e_shnum; i++) { + s = sm_table[i].s; + if (!s) + continue; + sh = &shdr[i]; + offset = sm_table[i].offset; + switch(s->sh_type) { + case SHT_RELX: + /* take relocation offset information */ + offseti = sm_table[sh->sh_info].offset; + for_each_elem(s, (offset / sizeof(*rel)), rel, ElfW_Rel) { + int type; + unsigned sym_index; + /* convert symbol index */ + type = ELFW(R_TYPE)(rel->r_info); + sym_index = ELFW(R_SYM)(rel->r_info); + /* NOTE: only one symtab assumed */ + if (sym_index >= nb_syms) + goto invalid_reloc; + sym_index = old_to_new_syms[sym_index]; + /* ignore link_once in rel section. */ + if (!sym_index && !sm->link_once +#ifdef TCC_TARGET_ARM + && type != R_ARM_V4BX +#endif + ) { + invalid_reloc: + tcc_error_noabort("Invalid relocation entry [%2d] '%s' @ %.8x", + i, strsec + sh->sh_name, rel->r_offset); + goto fail; + } + rel->r_info = ELFW(R_INFO)(sym_index, type); + /* offset the relocation offset */ + rel->r_offset += offseti; +#ifdef TCC_TARGET_ARM + /* Jumps and branches from a Thumb code to a PLT entry need + special handling since PLT entries are ARM code. + Unconditional bl instructions referencing PLT entries are + handled by converting these instructions into blx + instructions. Other case of instructions referencing a PLT + entry require to add a Thumb stub before the PLT entry to + switch to ARM mode. We set bit plt_thumb_stub of the + attribute of a symbol to indicate such a case. */ + if (type == R_ARM_THM_JUMP24) + alloc_sym_attr(s1, sym_index)->plt_thumb_stub = 1; +#endif + } + break; + default: + break; + } + } + + ret = 0; + the_end: + tcc_free(symtab); + tcc_free(strtab); + tcc_free(old_to_new_syms); + tcc_free(sm_table); + tcc_free(strsec); + tcc_free(shdr); + return ret; +} + +typedef struct ArchiveHeader { + char ar_name[16]; /* name of this member */ + char ar_date[12]; /* file mtime */ + char ar_uid[6]; /* owner uid; printed as decimal */ + char ar_gid[6]; /* owner gid; printed as decimal */ + char ar_mode[8]; /* file mode, printed as octal */ + char ar_size[10]; /* file size, printed as decimal */ + char ar_fmag[2]; /* should contain ARFMAG */ +} ArchiveHeader; + +static int get_be32(const uint8_t *b) +{ + return b[3] | (b[2] << 8) | (b[1] << 16) | (b[0] << 24); +} + +/* load only the objects which resolve undefined symbols */ +static int tcc_load_alacarte(TCCState *s1, int fd, int size) +{ + int i, bound, nsyms, sym_index, off, ret; + uint8_t *data; + const char *ar_names, *p; + const uint8_t *ar_index; + ElfW(Sym) *sym; + + data = tcc_malloc(size); + if (read(fd, data, size) != size) + goto fail; + nsyms = get_be32(data); + ar_index = data + 4; + ar_names = (char *) ar_index + nsyms * 4; + + do { + bound = 0; + for(p = ar_names, i = 0; i < nsyms; i++, p += strlen(p)+1) { + sym_index = find_elf_sym(symtab_section, p); + if(sym_index) { + sym = &((ElfW(Sym) *)symtab_section->data)[sym_index]; + if(sym->st_shndx == SHN_UNDEF) { + off = get_be32(ar_index + i * 4) + sizeof(ArchiveHeader); + ++bound; + lseek(fd, off, SEEK_SET); + if(tcc_load_object_file(s1, fd, off) < 0) { + fail: + ret = -1; + goto the_end; + } + } + } + } + } while(bound); + ret = 0; + the_end: + tcc_free(data); + return ret; +} + +/* load a '.a' file */ +ST_FUNC int tcc_load_archive(TCCState *s1, int fd) +{ + ArchiveHeader hdr; + char ar_size[11]; + char ar_name[17]; + char magic[8]; + int size, len, i; + unsigned long file_offset; + + /* skip magic which was already checked */ + read(fd, magic, sizeof(magic)); + + for(;;) { + len = read(fd, &hdr, sizeof(hdr)); + if (len == 0) + break; + if (len != sizeof(hdr)) { + tcc_error_noabort("invalid archive"); + return -1; + } + memcpy(ar_size, hdr.ar_size, sizeof(hdr.ar_size)); + ar_size[sizeof(hdr.ar_size)] = '\0'; + size = strtol(ar_size, NULL, 0); + memcpy(ar_name, hdr.ar_name, sizeof(hdr.ar_name)); + for(i = sizeof(hdr.ar_name) - 1; i >= 0; i--) { + if (ar_name[i] != ' ') + break; + } + ar_name[i + 1] = '\0'; + file_offset = lseek(fd, 0, SEEK_CUR); + /* align to even */ + size = (size + 1) & ~1; + if (!strcmp(ar_name, "/")) { + /* coff symbol table : we handle it */ + if(s1->alacarte_link) + return tcc_load_alacarte(s1, fd, size); + } else if (!strcmp(ar_name, "//") || + !strcmp(ar_name, "__.SYMDEF") || + !strcmp(ar_name, "__.SYMDEF/") || + !strcmp(ar_name, "ARFILENAMES/")) { + /* skip symbol table or archive names */ + } else { + if (tcc_load_object_file(s1, fd, file_offset) < 0) + return -1; + } + lseek(fd, file_offset + size, SEEK_SET); + } + return 0; +} + +#ifndef TCC_TARGET_PE +/* load a DLL and all referenced DLLs. 'level = 0' means that the DLL + is referenced by the user (so it should be added as DT_NEEDED in + the generated ELF file) */ +ST_FUNC int tcc_load_dll(TCCState *s1, int fd, const char *filename, int level) +{ + ElfW(Ehdr) ehdr; + ElfW(Shdr) *shdr, *sh, *sh1; + int i, j, nb_syms, nb_dts, sym_bind, ret; + ElfW(Sym) *sym, *dynsym; + ElfW(Dyn) *dt, *dynamic; + unsigned char *dynstr; + const char *name, *soname; + DLLReference *dllref; + + read(fd, &ehdr, sizeof(ehdr)); + + /* test CPU specific stuff */ + if (ehdr.e_ident[5] != ELFDATA2LSB || + ehdr.e_machine != EM_TCC_TARGET) { + tcc_error_noabort("bad architecture"); + return -1; + } + + /* read sections */ + shdr = load_data(fd, ehdr.e_shoff, sizeof(ElfW(Shdr)) * ehdr.e_shnum); + + /* load dynamic section and dynamic symbols */ + nb_syms = 0; + nb_dts = 0; + dynamic = NULL; + dynsym = NULL; /* avoid warning */ + dynstr = NULL; /* avoid warning */ + for(i = 0, sh = shdr; i < ehdr.e_shnum; i++, sh++) { + switch(sh->sh_type) { + case SHT_DYNAMIC: + nb_dts = sh->sh_size / sizeof(ElfW(Dyn)); + dynamic = load_data(fd, sh->sh_offset, sh->sh_size); + break; + case SHT_DYNSYM: + nb_syms = sh->sh_size / sizeof(ElfW(Sym)); + dynsym = load_data(fd, sh->sh_offset, sh->sh_size); + sh1 = &shdr[sh->sh_link]; + dynstr = load_data(fd, sh1->sh_offset, sh1->sh_size); + break; + default: + break; + } + } + + /* compute the real library name */ + soname = tcc_basename(filename); + + for(i = 0, dt = dynamic; i < nb_dts; i++, dt++) { + if (dt->d_tag == DT_SONAME) { + soname = (char *) dynstr + dt->d_un.d_val; + } + } + + /* if the dll is already loaded, do not load it */ + for(i = 0; i < s1->nb_loaded_dlls; i++) { + dllref = s1->loaded_dlls[i]; + if (!strcmp(soname, dllref->name)) { + /* but update level if needed */ + if (level < dllref->level) + dllref->level = level; + ret = 0; + goto the_end; + } + } + + /* add the dll and its level */ + dllref = tcc_mallocz(sizeof(DLLReference) + strlen(soname)); + dllref->level = level; + strcpy(dllref->name, soname); + dynarray_add((void ***)&s1->loaded_dlls, &s1->nb_loaded_dlls, dllref); + + /* add dynamic symbols in dynsym_section */ + for(i = 1, sym = dynsym + 1; i < nb_syms; i++, sym++) { + sym_bind = ELFW(ST_BIND)(sym->st_info); + if (sym_bind == STB_LOCAL) + continue; + name = (char *) dynstr + sym->st_name; + add_elf_sym(s1->dynsymtab_section, sym->st_value, sym->st_size, + sym->st_info, sym->st_other, sym->st_shndx, name); + } + + /* load all referenced DLLs */ + for(i = 0, dt = dynamic; i < nb_dts; i++, dt++) { + switch(dt->d_tag) { + case DT_NEEDED: + name = (char *) dynstr + dt->d_un.d_val; + for(j = 0; j < s1->nb_loaded_dlls; j++) { + dllref = s1->loaded_dlls[j]; + if (!strcmp(name, dllref->name)) + goto already_loaded; + } + if (tcc_add_dll(s1, name, AFF_REFERENCED_DLL) < 0) { + tcc_error_noabort("referenced dll '%s' not found", name); + ret = -1; + goto the_end; + } + already_loaded: + break; + } + } + ret = 0; + the_end: + tcc_free(dynstr); + tcc_free(dynsym); + tcc_free(dynamic); + tcc_free(shdr); + return ret; +} + +#define LD_TOK_NAME 256 +#define LD_TOK_EOF (-1) + +/* return next ld script token */ +static int ld_next(TCCState *s1, char *name, int name_size) +{ + int c; + char *q; + + redo: + switch(ch) { + case ' ': + case '\t': + case '\f': + case '\v': + case '\r': + case '\n': + inp(); + goto redo; + case '/': + minp(); + if (ch == '*') { + file->buf_ptr = parse_comment(file->buf_ptr); + ch = file->buf_ptr[0]; + goto redo; + } else { + q = name; + *q++ = '/'; + goto parse_name; + } + break; + case '\\': + ch = handle_eob(); + if (ch != '\\') + goto redo; + /* fall through */ + /* case 'a' ... 'z': */ + case 'a': + case 'b': + case 'c': + case 'd': + case 'e': + case 'f': + case 'g': + case 'h': + case 'i': + case 'j': + case 'k': + case 'l': + case 'm': + case 'n': + case 'o': + case 'p': + case 'q': + case 'r': + case 's': + case 't': + case 'u': + case 'v': + case 'w': + case 'x': + case 'y': + case 'z': + /* case 'A' ... 'z': */ + case 'A': + case 'B': + case 'C': + case 'D': + case 'E': + case 'F': + case 'G': + case 'H': + case 'I': + case 'J': + case 'K': + case 'L': + case 'M': + case 'N': + case 'O': + case 'P': + case 'Q': + case 'R': + case 'S': + case 'T': + case 'U': + case 'V': + case 'W': + case 'X': + case 'Y': + case 'Z': + case '_': + case '.': + case '$': + case '~': + q = name; + parse_name: + for(;;) { + if (!((ch >= 'a' && ch <= 'z') || + (ch >= 'A' && ch <= 'Z') || + (ch >= '0' && ch <= '9') || + strchr("/.-_+=$:\\,~", ch))) + break; + if ((q - name) < name_size - 1) { + *q++ = ch; + } + minp(); + } + *q = '\0'; + c = LD_TOK_NAME; + break; + case CH_EOF: + c = LD_TOK_EOF; + break; + default: + c = ch; + inp(); + break; + } + return c; +} + +static int ld_add_file(TCCState *s1, const char filename[]) +{ + int ret; + + ret = tcc_add_file_internal(s1, filename, 0, TCC_FILETYPE_BINARY); + if (ret) + ret = tcc_add_dll(s1, filename, 0); + return ret; +} + +static inline int new_undef_syms(void) +{ + int ret = 0; + ret = new_undef_sym; + new_undef_sym = 0; + return ret; +} + +static int ld_add_file_list(TCCState *s1, const char *cmd, int as_needed) +{ + char filename[1024], libname[1024]; + int t, group, nblibs = 0, ret = 0; + char **libs = NULL; + + group = !strcmp(cmd, "GROUP"); + if (!as_needed) + new_undef_syms(); + t = ld_next(s1, filename, sizeof(filename)); + if (t != '(') + expect("("); + t = ld_next(s1, filename, sizeof(filename)); + for(;;) { + libname[0] = '\0'; + if (t == LD_TOK_EOF) { + tcc_error_noabort("unexpected end of file"); + ret = -1; + goto lib_parse_error; + } else if (t == ')') { + break; + } else if (t == '-') { + t = ld_next(s1, filename, sizeof(filename)); + if ((t != LD_TOK_NAME) || (filename[0] != 'l')) { + tcc_error_noabort("library name expected"); + ret = -1; + goto lib_parse_error; + } + pstrcpy(libname, sizeof libname, &filename[1]); + if (s1->static_link) { + snprintf(filename, sizeof filename, "lib%s.a", libname); + } else { + snprintf(filename, sizeof filename, "lib%s.so", libname); + } + } else if (t != LD_TOK_NAME) { + tcc_error_noabort("filename expected"); + ret = -1; + goto lib_parse_error; + } + if (!strcmp(filename, "AS_NEEDED")) { + ret = ld_add_file_list(s1, cmd, 1); + if (ret) + goto lib_parse_error; + } else { + /* TODO: Implement AS_NEEDED support. Ignore it for now */ + if (!as_needed) { + ret = ld_add_file(s1, filename); + if (ret) + goto lib_parse_error; + if (group) { + /* Add the filename *and* the libname to avoid future conversions */ + dynarray_add((void ***) &libs, &nblibs, tcc_strdup(filename)); + if (libname[0] != '\0') + dynarray_add((void ***) &libs, &nblibs, tcc_strdup(libname)); + } + } + } + t = ld_next(s1, filename, sizeof(filename)); + if (t == ',') { + t = ld_next(s1, filename, sizeof(filename)); + } + } + if (group && !as_needed) { + while (new_undef_syms()) { + int i; + + for (i = 0; i < nblibs; i ++) + ld_add_file(s1, libs[i]); + } + } +lib_parse_error: + dynarray_reset(&libs, &nblibs); + return ret; +} + +/* interpret a subset of GNU ldscripts to handle the dummy libc.so + files */ +ST_FUNC int tcc_load_ldscript(TCCState *s1) +{ + char cmd[64]; + char filename[1024]; + int t, ret; + + ch = handle_eob(); + for(;;) { + t = ld_next(s1, cmd, sizeof(cmd)); + if (t == LD_TOK_EOF) + return 0; + else if (t != LD_TOK_NAME) + return -1; + if (!strcmp(cmd, "INPUT") || + !strcmp(cmd, "GROUP")) { + ret = ld_add_file_list(s1, cmd, 0); + if (ret) + return ret; + } else if (!strcmp(cmd, "OUTPUT_FORMAT") || + !strcmp(cmd, "TARGET")) { + /* ignore some commands */ + t = ld_next(s1, cmd, sizeof(cmd)); + if (t != '(') + expect("("); + for(;;) { + t = ld_next(s1, filename, sizeof(filename)); + if (t == LD_TOK_EOF) { + tcc_error_noabort("unexpected end of file"); + return -1; + } else if (t == ')') { + break; + } + } + } else { + return -1; + } + } + return 0; +} +#endif /* !TCC_TARGET_PE */ diff --git a/external/TCC/tccgen.c b/external/TCC/tccgen.c new file mode 100644 index 00000000..7be2f2f5 --- /dev/null +++ b/external/TCC/tccgen.c @@ -0,0 +1,6454 @@ +/* + * TCC - Tiny C Compiler + * + * Copyright (c) 2001-2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" + +/********************************************************/ +/* global variables */ + +/* loc : local variable index + ind : output code index + rsym: return symbol + anon_sym: anonymous symbol index +*/ +ST_DATA int rsym, anon_sym, ind, loc; + +ST_DATA Section *text_section, *data_section, *bss_section; /* predefined sections */ +ST_DATA Section *cur_text_section; /* current section where function code is generated */ +#ifdef CONFIG_TCC_ASM +ST_DATA Section *last_text_section; /* to handle .previous asm directive */ +#endif +#ifdef CONFIG_TCC_BCHECK +/* bound check related sections */ +ST_DATA Section *bounds_section; /* contains global data bound description */ +ST_DATA Section *lbounds_section; /* contains local data bound description */ +#endif +/* symbol sections */ +ST_DATA Section *symtab_section, *strtab_section; +/* debug sections */ +ST_DATA Section *stab_section, *stabstr_section; +ST_DATA Sym *sym_free_first; +ST_DATA void **sym_pools; +ST_DATA int nb_sym_pools; + +ST_DATA Sym *global_stack; +ST_DATA Sym *local_stack; +ST_DATA Sym *scope_stack_bottom; +ST_DATA Sym *define_stack; +ST_DATA Sym *global_label_stack; +ST_DATA Sym *local_label_stack; + +ST_DATA int vlas_in_scope; /* number of VLAs that are currently in scope */ +ST_DATA int vla_sp_root_loc; /* vla_sp_loc for SP before any VLAs were pushed */ +ST_DATA int vla_sp_loc; /* Pointer to variable holding location to store stack pointer on the stack when modifying stack pointer */ + +ST_DATA SValue __vstack[1+VSTACK_SIZE], *vtop, *pvtop; + +ST_DATA int const_wanted; /* true if constant wanted */ +ST_DATA int nocode_wanted; /* true if no code generation wanted for an expression */ +ST_DATA int global_expr; /* true if compound literals must be allocated globally (used during initializers parsing */ +ST_DATA CType func_vt; /* current function return type (used by return instruction) */ +ST_DATA int func_var; /* true if current function is variadic (used by return instruction) */ +ST_DATA int func_vc; +ST_DATA int last_line_num, last_ind, func_ind; /* debug last line number and pc */ +ST_DATA const char *funcname; + +ST_DATA CType char_pointer_type, func_old_type, int_type, size_type; + +/* ------------------------------------------------------------------------- */ +static void gen_cast(CType *type); +static inline CType *pointed_type(CType *type); +static int is_compatible_types(CType *type1, CType *type2); +static int parse_btype(CType *type, AttributeDef *ad); +static void type_decl(CType *type, AttributeDef *ad, int *v, int td); +static void parse_expr_type(CType *type); +static void decl_initializer(CType *type, Section *sec, unsigned long c, int first, int size_only); +static void block(int *bsym, int *csym, int *case_sym, int *def_sym, int case_reg, int is_expr); +static void decl_initializer_alloc(CType *type, AttributeDef *ad, int r, int has_init, int v, int scope); +static int decl0(int l, int is_for_loop_init); +static void expr_eq(void); +static void unary_type(CType *type); +static void vla_runtime_type_size(CType *type, int *a); +static void vla_sp_restore(void); +static void vla_sp_restore_root(void); +static int is_compatible_parameter_types(CType *type1, CType *type2); +static void expr_type(CType *type); +ST_FUNC void vpush64(int ty, unsigned long long v); +ST_FUNC void vpush(CType *type); +ST_FUNC int gvtst(int inv, int t); +ST_FUNC int is_btype_size(int bt); + +ST_INLN int is_float(int t) +{ + int bt; + bt = t & VT_BTYPE; + return bt == VT_LDOUBLE || bt == VT_DOUBLE || bt == VT_FLOAT || bt == VT_QFLOAT; +} + +/* we use our own 'finite' function to avoid potential problems with + non standard math libs */ +/* XXX: endianness dependent */ +ST_FUNC int ieee_finite(double d) +{ + int p[4]; + memcpy(p, &d, sizeof(double)); + return ((unsigned)((p[1] | 0x800fffff) + 1)) >> 31; +} + +ST_FUNC void test_lvalue(void) +{ + if (!(vtop->r & VT_LVAL)) + expect("lvalue"); +} + +ST_FUNC void check_vstack(void) +{ + if (pvtop != vtop) + tcc_error("internal compiler error: vstack leak (%d)", vtop - pvtop); +} + +/* ------------------------------------------------------------------------- */ +/* symbol allocator */ +static Sym *__sym_malloc(void) +{ + Sym *sym_pool, *sym, *last_sym; + int i; + + sym_pool = tcc_malloc(SYM_POOL_NB * sizeof(Sym)); + dynarray_add(&sym_pools, &nb_sym_pools, sym_pool); + + last_sym = sym_free_first; + sym = sym_pool; + for(i = 0; i < SYM_POOL_NB; i++) { + sym->next = last_sym; + last_sym = sym; + sym++; + } + sym_free_first = last_sym; + return last_sym; +} + +static inline Sym *sym_malloc(void) +{ + Sym *sym; + sym = sym_free_first; + if (!sym) + sym = __sym_malloc(); + sym_free_first = sym->next; + return sym; +} + +ST_INLN void sym_free(Sym *sym) +{ + sym->next = sym_free_first; + sym_free_first = sym; +} + +/* push, without hashing */ +ST_FUNC Sym *sym_push2(Sym **ps, int v, int t, long c) +{ + Sym *s; + if (ps == &local_stack) { + for (s = *ps; s && s != scope_stack_bottom; s = s->prev) + if (!(v & SYM_FIELD) && (v & ~SYM_STRUCT) < SYM_FIRST_ANOM && s->v == v) + tcc_error("incompatible types for redefinition of '%s'", + get_tok_str(v, NULL)); + } + s = sym_malloc(); + s->asm_label = 0; + s->v = v; + s->type.t = t; + s->type.ref = NULL; +#ifdef _WIN64 + s->d = NULL; +#endif + s->c = c; + s->next = NULL; + /* add in stack */ + s->prev = *ps; + *ps = s; + return s; +} + +/* find a symbol and return its associated structure. 's' is the top + of the symbol stack */ +ST_FUNC Sym *sym_find2(Sym *s, int v) +{ + while (s) { + if (s->v == v) + return s; + else if (s->v == -1) + return NULL; + s = s->prev; + } + return NULL; +} + +/* structure lookup */ +ST_INLN Sym *struct_find(int v) +{ + v -= TOK_IDENT; + if ((unsigned)v >= (unsigned)(tok_ident - TOK_IDENT)) + return NULL; + return table_ident[v]->sym_struct; +} + +/* find an identifier */ +ST_INLN Sym *sym_find(int v) +{ + v -= TOK_IDENT; + if ((unsigned)v >= (unsigned)(tok_ident - TOK_IDENT)) + return NULL; + return table_ident[v]->sym_identifier; +} + +/* push a given symbol on the symbol stack */ +ST_FUNC Sym *sym_push(int v, CType *type, int r, int c) +{ + Sym *s, **ps; + TokenSym *ts; + + if (local_stack) + ps = &local_stack; + else + ps = &global_stack; + s = sym_push2(ps, v, type->t, c); + s->type.ref = type->ref; + s->r = r; + /* don't record fields or anonymous symbols */ + /* XXX: simplify */ + if (!(v & SYM_FIELD) && (v & ~SYM_STRUCT) < SYM_FIRST_ANOM) { + /* record symbol in token array */ + ts = table_ident[(v & ~SYM_STRUCT) - TOK_IDENT]; + if (v & SYM_STRUCT) + ps = &ts->sym_struct; + else + ps = &ts->sym_identifier; + s->prev_tok = *ps; + *ps = s; + } + return s; +} + +/* push a global identifier */ +ST_FUNC Sym *global_identifier_push(int v, int t, int c) +{ + Sym *s, **ps; + s = sym_push2(&global_stack, v, t, c); + /* don't record anonymous symbol */ + if (v < SYM_FIRST_ANOM) { + ps = &table_ident[v - TOK_IDENT]->sym_identifier; + /* modify the top most local identifier, so that + sym_identifier will point to 's' when popped */ + while (*ps != NULL) + ps = &(*ps)->prev_tok; + s->prev_tok = NULL; + *ps = s; + } + return s; +} + +/* pop symbols until top reaches 'b' */ +ST_FUNC void sym_pop(Sym **ptop, Sym *b) +{ + Sym *s, *ss, **ps; + TokenSym *ts; + int v; + + s = *ptop; + while(s != b) { + ss = s->prev; + v = s->v; + /* remove symbol in token array */ + /* XXX: simplify */ + if (!(v & SYM_FIELD) && (v & ~SYM_STRUCT) < SYM_FIRST_ANOM) { + ts = table_ident[(v & ~SYM_STRUCT) - TOK_IDENT]; + if (v & SYM_STRUCT) + ps = &ts->sym_struct; + else + ps = &ts->sym_identifier; + *ps = s->prev_tok; + } + sym_free(s); + s = ss; + } + *ptop = b; +} + +static void weaken_symbol(Sym *sym) +{ + sym->type.t |= VT_WEAK; + if (sym->c > 0) { + int esym_type; + ElfW(Sym) *esym; + + esym = &((ElfW(Sym) *)symtab_section->data)[sym->c]; + esym_type = ELFW(ST_TYPE)(esym->st_info); + esym->st_info = ELFW(ST_INFO)(STB_WEAK, esym_type); + } +} + +static void apply_visibility(Sym *sym, CType *type) +{ + int vis = sym->type.t & VT_VIS_MASK; + int vis2 = type->t & VT_VIS_MASK; + if (vis == (STV_DEFAULT << VT_VIS_SHIFT)) + vis = vis2; + else if (vis2 == (STV_DEFAULT << VT_VIS_SHIFT)) + ; + else + vis = (vis < vis2) ? vis : vis2; + sym->type.t &= ~VT_VIS_MASK; + sym->type.t |= vis; + + if (sym->c > 0) { + ElfW(Sym) *esym; + + esym = &((ElfW(Sym) *)symtab_section->data)[sym->c]; + vis >>= VT_VIS_SHIFT; + esym->st_other = (esym->st_other & ~ELFW(ST_VISIBILITY)(-1)) | vis; + } +} + +/* ------------------------------------------------------------------------- */ + +ST_FUNC void swap(int *p, int *q) +{ + int t; + t = *p; + *p = *q; + *q = t; +} + +static void vsetc(CType *type, int r, CValue *vc) +{ + int v; + + if (vtop >= vstack + (VSTACK_SIZE - 1)) + tcc_error("memory full (vstack)"); + /* cannot let cpu flags if other instruction are generated. Also + avoid leaving VT_JMP anywhere except on the top of the stack + because it would complicate the code generator. */ + if (vtop >= vstack) { + v = vtop->r & VT_VALMASK; + if (v == VT_CMP || (v & ~1) == VT_JMP) + gv(RC_INT); + } + vtop++; + vtop->type = *type; + vtop->r = r; + vtop->r2 = VT_CONST; + vtop->c = *vc; +} + +/* push constant of type "type" with useless value */ +ST_FUNC void vpush(CType *type) +{ + CValue cval; + vsetc(type, VT_CONST, &cval); +} + +/* push integer constant */ +ST_FUNC void vpushi(int v) +{ + CValue cval; + cval.i = v; + vsetc(&int_type, VT_CONST, &cval); +} + +/* push a pointer sized constant */ +static void vpushs(addr_t v) +{ + CValue cval; + cval.i = v; + vsetc(&size_type, VT_CONST, &cval); +} + +/* push arbitrary 64bit constant */ +ST_FUNC void vpush64(int ty, unsigned long long v) +{ + CValue cval; + CType ctype; + ctype.t = ty; + ctype.ref = NULL; + cval.i = v; + vsetc(&ctype, VT_CONST, &cval); +} + +/* push long long constant */ +static inline void vpushll(long long v) +{ + vpush64(VT_LLONG, v); +} + +/* push a symbol value of TYPE */ +static inline void vpushsym(CType *type, Sym *sym) +{ + CValue cval; + cval.i = 0; + vsetc(type, VT_CONST | VT_SYM, &cval); + vtop->sym = sym; +} + +/* Return a static symbol pointing to a section */ +ST_FUNC Sym *get_sym_ref(CType *type, Section *sec, unsigned long offset, unsigned long size) +{ + int v; + Sym *sym; + + v = anon_sym++; + sym = global_identifier_push(v, type->t | VT_STATIC, 0); + sym->type.ref = type->ref; + sym->r = VT_CONST | VT_SYM; + put_extern_sym(sym, sec, offset, size); + return sym; +} + +/* push a reference to a section offset by adding a dummy symbol */ +static void vpush_ref(CType *type, Section *sec, unsigned long offset, unsigned long size) +{ + vpushsym(type, get_sym_ref(type, sec, offset, size)); +} + +/* define a new external reference to a symbol 'v' of type 'u' */ +ST_FUNC Sym *external_global_sym(int v, CType *type, int r) +{ + Sym *s; + + s = sym_find(v); + if (!s) { + /* push forward reference */ + s = global_identifier_push(v, type->t | VT_EXTERN, 0); + s->type.ref = type->ref; + s->r = r | VT_CONST | VT_SYM; + } + return s; +} + +/* define a new external reference to a symbol 'v' */ +static Sym *external_sym(int v, CType *type, int r) +{ + Sym *s; + + s = sym_find(v); + if (!s) { + /* push forward reference */ + s = sym_push(v, type, r | VT_CONST | VT_SYM, 0); + s->type.t |= VT_EXTERN; + } else if (s->type.ref == func_old_type.ref) { + s->type.ref = type->ref; + s->r = r | VT_CONST | VT_SYM; + s->type.t |= VT_EXTERN; + } else if (!is_compatible_types(&s->type, type)) { + tcc_error("incompatible types for redefinition of '%s'", + get_tok_str(v, NULL)); + } + /* Merge some storage attributes. */ + if (type->t & VT_WEAK) + weaken_symbol(s); + + if (type->t & VT_VIS_MASK) + apply_visibility(s, type); + + return s; +} + +/* push a reference to global symbol v */ +ST_FUNC void vpush_global_sym(CType *type, int v) +{ + vpushsym(type, external_global_sym(v, type, 0)); +} + +ST_FUNC void vset(CType *type, int r, int v) +{ + CValue cval; + + cval.i = v; + vsetc(type, r, &cval); +} + +static void vseti(int r, int v) +{ + CType type; + type.t = VT_INT; + type.ref = 0; + vset(&type, r, v); +} + +ST_FUNC void vswap(void) +{ + SValue tmp; + /* cannot let cpu flags if other instruction are generated. Also + avoid leaving VT_JMP anywhere except on the top of the stack + because it would complicate the code generator. */ + if (vtop >= vstack) { + int v = vtop->r & VT_VALMASK; + if (v == VT_CMP || (v & ~1) == VT_JMP) + gv(RC_INT); + } + tmp = vtop[0]; + vtop[0] = vtop[-1]; + vtop[-1] = tmp; + +/* XXX: +2% overall speed possible with optimized memswap + * + * memswap(&vtop[0], &vtop[1], sizeof *vtop); + */ +} + +ST_FUNC void vpushv(SValue *v) +{ + if (vtop >= vstack + (VSTACK_SIZE - 1)) + tcc_error("memory full (vstack)"); + vtop++; + *vtop = *v; +} + +static void vdup(void) +{ + vpushv(vtop); +} + +/* save r to the memory stack, and mark it as being free */ +ST_FUNC void save_reg(int r) +{ + int l, saved, size, align; + SValue *p, sv; + CType *type; + + /* modify all stack values */ + saved = 0; + l = 0; + for(p=vstack;p<=vtop;p++) { + if ((p->r & VT_VALMASK) == r || + ((p->type.t & VT_BTYPE) == VT_LLONG && (p->r2 & VT_VALMASK) == r)) { + /* must save value on stack if not already done */ + if (!saved) { + /* NOTE: must reload 'r' because r might be equal to r2 */ + r = p->r & VT_VALMASK; + /* store register in the stack */ + type = &p->type; + if ((p->r & VT_LVAL) || + (!is_float(type->t) && (type->t & VT_BTYPE) != VT_LLONG)) +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + type = &char_pointer_type; +#else + type = &int_type; +#endif + size = type_size(type, &align); + loc = (loc - size) & -align; + sv.type.t = type->t; + sv.r = VT_LOCAL | VT_LVAL; + sv.c.i = loc; + store(r, &sv); +#if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64) + /* x86 specific: need to pop fp register ST0 if saved */ + if (r == TREG_ST0) { + o(0xd8dd); /* fstp %st(0) */ + } +#endif +#if !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_X86_64) + /* special long long case */ + if ((type->t & VT_BTYPE) == VT_LLONG) { + sv.c.i += 4; + store(p->r2, &sv); + } +#endif + l = loc; + saved = 1; + } + /* mark that stack entry as being saved on the stack */ + if (p->r & VT_LVAL) { + /* also clear the bounded flag because the + relocation address of the function was stored in + p->c.i */ + p->r = (p->r & ~(VT_VALMASK | VT_BOUNDED)) | VT_LLOCAL; + } else { + p->r = lvalue_type(p->type.t) | VT_LOCAL; + } + p->r2 = VT_CONST; + p->c.i = l; + } + } +} + +#ifdef TCC_TARGET_ARM +/* find a register of class 'rc2' with at most one reference on stack. + * If none, call get_reg(rc) */ +ST_FUNC int get_reg_ex(int rc, int rc2) +{ + int r; + SValue *p; + + for(r=0;rr & VT_VALMASK) == r || + (p->r2 & VT_VALMASK) == r) + n++; + } + if (n <= 1) + return r; + } + } + return get_reg(rc); +} +#endif + +/* find a free register of class 'rc'. If none, save one register */ +ST_FUNC int get_reg(int rc) +{ + int r; + SValue *p; + + /* find a free register */ + for(r=0;rr & VT_VALMASK) == r || + (p->r2 & VT_VALMASK) == r) + goto notfound; + } + return r; + } + notfound: ; + } + + /* no register left : free the first one on the stack (VERY + IMPORTANT to start from the bottom to ensure that we don't + spill registers used in gen_opi()) */ + for(p=vstack;p<=vtop;p++) { + /* look at second register (if long long) */ + r = p->r2 & VT_VALMASK; + if (r < VT_CONST && (reg_classes[r] & rc)) + goto save_found; + r = p->r & VT_VALMASK; + if (r < VT_CONST && (reg_classes[r] & rc)) { + save_found: + save_reg(r); + return r; + } + } + /* Should never comes here */ + return -1; +} + +/* save registers up to (vtop - n) stack entry */ +ST_FUNC void save_regs(int n) +{ + int r; + SValue *p, *p1; + p1 = vtop - n; + for(p = vstack;p <= p1; p++) { + r = p->r & VT_VALMASK; + if (r < VT_CONST) { + save_reg(r); + } + } +} + +/* move register 's' (of type 't') to 'r', and flush previous value of r to memory + if needed */ +static void move_reg(int r, int s, int t) +{ + SValue sv; + + if (r != s) { + save_reg(r); + sv.type.t = t; + sv.type.ref = NULL; + sv.r = s; + sv.c.i = 0; + load(r, &sv); + } +} + +/* get address of vtop (vtop MUST BE an lvalue) */ +ST_FUNC void gaddrof(void) +{ + if (vtop->r & VT_REF && !nocode_wanted) + gv(RC_INT); + vtop->r &= ~VT_LVAL; + /* tricky: if saved lvalue, then we can go back to lvalue */ + if ((vtop->r & VT_VALMASK) == VT_LLOCAL) + vtop->r = (vtop->r & ~(VT_VALMASK | VT_LVAL_TYPE)) | VT_LOCAL | VT_LVAL; + + +} + +#ifdef CONFIG_TCC_BCHECK +/* generate lvalue bound code */ +static void gbound(void) +{ + int lval_type; + CType type1; + + vtop->r &= ~VT_MUSTBOUND; + /* if lvalue, then use checking code before dereferencing */ + if (vtop->r & VT_LVAL) { + /* if not VT_BOUNDED value, then make one */ + if (!(vtop->r & VT_BOUNDED)) { + lval_type = vtop->r & (VT_LVAL_TYPE | VT_LVAL); + /* must save type because we must set it to int to get pointer */ + type1 = vtop->type; + vtop->type.t = VT_PTR; + gaddrof(); + vpushi(0); + gen_bounded_ptr_add(); + vtop->r |= lval_type; + vtop->type = type1; + } + /* then check for dereferencing */ + gen_bounded_ptr_deref(); + } +} +#endif + +/* store vtop a register belonging to class 'rc'. lvalues are + converted to values. Cannot be used if cannot be converted to + register value (such as structures). */ +ST_FUNC int gv(int rc) +{ + int r, bit_pos, bit_size, size, align, i; + int rc2; + + /* NOTE: get_reg can modify vstack[] */ + if (vtop->type.t & VT_BITFIELD) { + CType type; + int bits = 32; + bit_pos = (vtop->type.t >> VT_STRUCT_SHIFT) & 0x3f; + bit_size = (vtop->type.t >> (VT_STRUCT_SHIFT + 6)) & 0x3f; + /* remove bit field info to avoid loops */ + vtop->type.t &= ~VT_BITFIELD & ((1 << VT_STRUCT_SHIFT) - 1); + /* cast to int to propagate signedness in following ops */ + if ((vtop->type.t & VT_BTYPE) == VT_LLONG) { + type.t = VT_LLONG; + bits = 64; + } else + type.t = VT_INT; + if((vtop->type.t & VT_UNSIGNED) || + (vtop->type.t & VT_BTYPE) == VT_BOOL) + type.t |= VT_UNSIGNED; + gen_cast(&type); + /* generate shifts */ + vpushi(bits - (bit_pos + bit_size)); + gen_op(TOK_SHL); + vpushi(bits - bit_size); + /* NOTE: transformed to SHR if unsigned */ + gen_op(TOK_SAR); + r = gv(rc); + } else { + if (is_float(vtop->type.t) && + (vtop->r & (VT_VALMASK | VT_LVAL)) == VT_CONST) { + Sym *sym; + int *ptr; + unsigned long offset; +#if defined(TCC_TARGET_ARM) && !defined(TCC_ARM_VFP) + CValue check; +#endif + + /* XXX: unify with initializers handling ? */ + /* CPUs usually cannot use float constants, so we store them + generically in data segment */ + size = type_size(&vtop->type, &align); + offset = (data_section->data_offset + align - 1) & -align; + data_section->data_offset = offset; + /* XXX: not portable yet */ +#if defined(__i386__) || defined(__x86_64__) + /* Zero pad x87 tenbyte long doubles */ + if (size == LDOUBLE_SIZE) { + vtop->c.tab[2] &= 0xffff; +#if LDOUBLE_SIZE == 16 + vtop->c.tab[3] = 0; +#endif + } +#endif + ptr = section_ptr_add(data_section, size); + size = size >> 2; +#if defined(TCC_TARGET_ARM) && !defined(TCC_ARM_VFP) + check.d = 1; + if(check.tab[0]) + for(i=0;ic.tab[size-1-i]; + else +#endif + for(i=0;ic.tab[i]; + sym = get_sym_ref(&vtop->type, data_section, offset, size << 2); + vtop->r |= VT_LVAL | VT_SYM; + vtop->sym = sym; + vtop->c.i = 0; + } +#ifdef CONFIG_TCC_BCHECK + if (vtop->r & VT_MUSTBOUND) + gbound(); +#endif + + r = vtop->r & VT_VALMASK; + rc2 = (rc & RC_FLOAT) ? RC_FLOAT : RC_INT; +#ifndef TCC_TARGET_ARM64 + if (rc == RC_IRET) + rc2 = RC_LRET; +#ifdef TCC_TARGET_X86_64 + else if (rc == RC_FRET) + rc2 = RC_QRET; +#endif +#endif + + /* need to reload if: + - constant + - lvalue (need to dereference pointer) + - already a register, but not in the right class */ + if (r >= VT_CONST + || (vtop->r & VT_LVAL) + || !(reg_classes[r] & rc) +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + || ((vtop->type.t & VT_BTYPE) == VT_QLONG && !(reg_classes[vtop->r2] & rc2)) + || ((vtop->type.t & VT_BTYPE) == VT_QFLOAT && !(reg_classes[vtop->r2] & rc2)) +#else + || ((vtop->type.t & VT_BTYPE) == VT_LLONG && !(reg_classes[vtop->r2] & rc2)) +#endif + ) + { + r = get_reg(rc); +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + if (((vtop->type.t & VT_BTYPE) == VT_QLONG) || ((vtop->type.t & VT_BTYPE) == VT_QFLOAT)) { + int addr_type = VT_LLONG, load_size = 8, load_type = ((vtop->type.t & VT_BTYPE) == VT_QLONG) ? VT_LLONG : VT_DOUBLE; +#else + if ((vtop->type.t & VT_BTYPE) == VT_LLONG) { + int addr_type = VT_INT, load_size = 4, load_type = VT_INT; + unsigned long long ll; +#endif + int r2, original_type; + original_type = vtop->type.t; + /* two register type load : expand to two words + temporarily */ +#if !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_X86_64) + if ((vtop->r & (VT_VALMASK | VT_LVAL)) == VT_CONST) { + /* load constant */ + ll = vtop->c.i; + vtop->c.i = ll; /* first word */ + load(r, vtop); + vtop->r = r; /* save register value */ + vpushi(ll >> 32); /* second word */ + } else +#endif + if (r >= VT_CONST || /* XXX: test to VT_CONST incorrect ? */ + (vtop->r & VT_LVAL)) { + /* We do not want to modifier the long long + pointer here, so the safest (and less + efficient) is to save all the other registers + in the stack. XXX: totally inefficient. */ + save_regs(1); + /* load from memory */ + vtop->type.t = load_type; + load(r, vtop); + vdup(); + vtop[-1].r = r; /* save register value */ + /* increment pointer to get second word */ + vtop->type.t = addr_type; + gaddrof(); + vpushi(load_size); + gen_op('+'); + vtop->r |= VT_LVAL; + vtop->type.t = load_type; + } else { + /* move registers */ + load(r, vtop); + vdup(); + vtop[-1].r = r; /* save register value */ + vtop->r = vtop[-1].r2; + } + /* Allocate second register. Here we rely on the fact that + get_reg() tries first to free r2 of an SValue. */ + r2 = get_reg(rc2); + load(r2, vtop); + vpop(); + /* write second register */ + vtop->r2 = r2; + vtop->type.t = original_type; + } else if ((vtop->r & VT_LVAL) && !is_float(vtop->type.t)) { + int t1, t; + /* lvalue of scalar type : need to use lvalue type + because of possible cast */ + t = vtop->type.t; + t1 = t; + /* compute memory access type */ + if (vtop->r & VT_REF) +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + t = VT_PTR; +#else + t = VT_INT; +#endif + else if (vtop->r & VT_LVAL_BYTE) + t = VT_BYTE; + else if (vtop->r & VT_LVAL_SHORT) + t = VT_SHORT; + if (vtop->r & VT_LVAL_UNSIGNED) + t |= VT_UNSIGNED; + vtop->type.t = t; + load(r, vtop); + /* restore wanted type */ + vtop->type.t = t1; + } else { + /* one register type load */ + load(r, vtop); + } + } + vtop->r = r; +#ifdef TCC_TARGET_C67 + /* uses register pairs for doubles */ + if ((vtop->type.t & VT_BTYPE) == VT_DOUBLE) + vtop->r2 = r+1; +#endif + } + return r; +} + +/* generate vtop[-1] and vtop[0] in resp. classes rc1 and rc2 */ +ST_FUNC void gv2(int rc1, int rc2) +{ + int v; + + /* generate more generic register first. But VT_JMP or VT_CMP + values must be generated first in all cases to avoid possible + reload errors */ + v = vtop[0].r & VT_VALMASK; + if (v != VT_CMP && (v & ~1) != VT_JMP && rc1 <= rc2) { + vswap(); + gv(rc1); + vswap(); + gv(rc2); + /* test if reload is needed for first register */ + if ((vtop[-1].r & VT_VALMASK) >= VT_CONST) { + vswap(); + gv(rc1); + vswap(); + } + } else { + gv(rc2); + vswap(); + gv(rc1); + vswap(); + /* test if reload is needed for first register */ + if ((vtop[0].r & VT_VALMASK) >= VT_CONST) { + gv(rc2); + } + } +} + +#ifndef TCC_TARGET_ARM64 +/* wrapper around RC_FRET to return a register by type */ +static int rc_fret(int t) +{ +#ifdef TCC_TARGET_X86_64 + if (t == VT_LDOUBLE) { + return RC_ST0; + } +#endif + return RC_FRET; +} +#endif + +/* wrapper around REG_FRET to return a register by type */ +static int reg_fret(int t) +{ +#ifdef TCC_TARGET_X86_64 + if (t == VT_LDOUBLE) { + return TREG_ST0; + } +#endif + return REG_FRET; +} + +/* expand long long on stack in two int registers */ +static void lexpand(void) +{ + int u; + + u = vtop->type.t & (VT_DEFSIGN | VT_UNSIGNED); + gv(RC_INT); + vdup(); + vtop[0].r = vtop[-1].r2; + vtop[0].r2 = VT_CONST; + vtop[-1].r2 = VT_CONST; + vtop[0].type.t = VT_INT | u; + vtop[-1].type.t = VT_INT | u; +} + +#ifdef TCC_TARGET_ARM +/* expand long long on stack */ +ST_FUNC void lexpand_nr(void) +{ + int u,v; + + u = vtop->type.t & (VT_DEFSIGN | VT_UNSIGNED); + vdup(); + vtop->r2 = VT_CONST; + vtop->type.t = VT_INT | u; + v=vtop[-1].r & (VT_VALMASK | VT_LVAL); + if (v == VT_CONST) { + vtop[-1].c.i = vtop->c.i; + vtop->c.i = vtop->c.i >> 32; + vtop->r = VT_CONST; + } else if (v == (VT_LVAL|VT_CONST) || v == (VT_LVAL|VT_LOCAL)) { + vtop->c.i += 4; + vtop->r = vtop[-1].r; + } else if (v > VT_CONST) { + vtop--; + lexpand(); + } else + vtop->r = vtop[-1].r2; + vtop[-1].r2 = VT_CONST; + vtop[-1].type.t = VT_INT | u; +} +#endif + +/* build a long long from two ints */ +static void lbuild(int t) +{ + gv2(RC_INT, RC_INT); + vtop[-1].r2 = vtop[0].r; + vtop[-1].type.t = t; + vpop(); +} + +/* rotate n first stack elements to the bottom + I1 ... In -> I2 ... In I1 [top is right] +*/ +ST_FUNC void vrotb(int n) +{ + int i; + SValue tmp; + + tmp = vtop[-n + 1]; + for(i=-n+1;i!=0;i++) + vtop[i] = vtop[i+1]; + vtop[0] = tmp; +} + +/* rotate the n elements before entry e towards the top + I1 ... In ... -> In I1 ... I(n-1) ... [top is right] + */ +ST_FUNC void vrote(SValue *e, int n) +{ + int i; + SValue tmp; + + tmp = *e; + for(i = 0;i < n - 1; i++) + e[-i] = e[-i - 1]; + e[-n + 1] = tmp; +} + +/* rotate n first stack elements to the top + I1 ... In -> In I1 ... I(n-1) [top is right] + */ +ST_FUNC void vrott(int n) +{ + vrote(vtop, n); +} + +/* pop stack value */ +ST_FUNC void vpop(void) +{ + int v; + v = vtop->r & VT_VALMASK; +#if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64) + /* for x86, we need to pop the FP stack */ + if (v == TREG_ST0 && !nocode_wanted) { + o(0xd8dd); /* fstp %st(0) */ + } else +#endif + if (v == VT_JMP || v == VT_JMPI) { + /* need to put correct jump if && or || without test */ + gsym(vtop->c.i); + } + vtop--; +} + +/* convert stack entry to register and duplicate its value in another + register */ +static void gv_dup(void) +{ + int rc, t, r, r1; + SValue sv; + + t = vtop->type.t; + if ((t & VT_BTYPE) == VT_LLONG) { + lexpand(); + gv_dup(); + vswap(); + vrotb(3); + gv_dup(); + vrotb(4); + /* stack: H L L1 H1 */ + lbuild(t); + vrotb(3); + vrotb(3); + vswap(); + lbuild(t); + vswap(); + } else { + /* duplicate value */ + rc = RC_INT; + sv.type.t = VT_INT; + if (is_float(t)) { + rc = RC_FLOAT; +#ifdef TCC_TARGET_X86_64 + if ((t & VT_BTYPE) == VT_LDOUBLE) { + rc = RC_ST0; + } +#endif + sv.type.t = t; + } + r = gv(rc); + r1 = get_reg(rc); + sv.r = r; + sv.c.i = 0; + load(r1, &sv); /* move r to r1 */ + vdup(); + /* duplicates value */ + if (r != r1) + vtop->r = r1; + } +} + +/* Generate value test + * + * Generate a test for any value (jump, comparison and integers) */ +ST_FUNC int gvtst(int inv, int t) +{ + int v = vtop->r & VT_VALMASK; + if (v != VT_CMP && v != VT_JMP && v != VT_JMPI) { + vpushi(0); + gen_op(TOK_NE); + } + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { + /* constant jmp optimization */ + if ((vtop->c.i != 0) != inv) + t = gjmp(t); + vtop--; + return t; + } + return gtst(inv, t); +} + +#if !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_X86_64) +/* generate CPU independent (unsigned) long long operations */ +static void gen_opl(int op) +{ + int t, a, b, op1, c, i; + int func; + unsigned short reg_iret = REG_IRET; + unsigned short reg_lret = REG_LRET; + SValue tmp; + + switch(op) { + case '/': + case TOK_PDIV: + func = TOK___divdi3; + goto gen_func; + case TOK_UDIV: + func = TOK___udivdi3; + goto gen_func; + case '%': + func = TOK___moddi3; + goto gen_mod_func; + case TOK_UMOD: + func = TOK___umoddi3; + gen_mod_func: +#ifdef TCC_ARM_EABI + reg_iret = TREG_R2; + reg_lret = TREG_R3; +#endif + gen_func: + /* call generic long long function */ + vpush_global_sym(&func_old_type, func); + vrott(3); + gfunc_call(2); + vpushi(0); + vtop->r = reg_iret; + vtop->r2 = reg_lret; + break; + case '^': + case '&': + case '|': + case '*': + case '+': + case '-': + t = vtop->type.t; + vswap(); + lexpand(); + vrotb(3); + lexpand(); + /* stack: L1 H1 L2 H2 */ + tmp = vtop[0]; + vtop[0] = vtop[-3]; + vtop[-3] = tmp; + tmp = vtop[-2]; + vtop[-2] = vtop[-3]; + vtop[-3] = tmp; + vswap(); + /* stack: H1 H2 L1 L2 */ + if (op == '*') { + vpushv(vtop - 1); + vpushv(vtop - 1); + gen_op(TOK_UMULL); + lexpand(); + /* stack: H1 H2 L1 L2 ML MH */ + for(i=0;i<4;i++) + vrotb(6); + /* stack: ML MH H1 H2 L1 L2 */ + tmp = vtop[0]; + vtop[0] = vtop[-2]; + vtop[-2] = tmp; + /* stack: ML MH H1 L2 H2 L1 */ + gen_op('*'); + vrotb(3); + vrotb(3); + gen_op('*'); + /* stack: ML MH M1 M2 */ + gen_op('+'); + gen_op('+'); + } else if (op == '+' || op == '-') { + /* XXX: add non carry method too (for MIPS or alpha) */ + if (op == '+') + op1 = TOK_ADDC1; + else + op1 = TOK_SUBC1; + gen_op(op1); + /* stack: H1 H2 (L1 op L2) */ + vrotb(3); + vrotb(3); + gen_op(op1 + 1); /* TOK_xxxC2 */ + } else { + gen_op(op); + /* stack: H1 H2 (L1 op L2) */ + vrotb(3); + vrotb(3); + /* stack: (L1 op L2) H1 H2 */ + gen_op(op); + /* stack: (L1 op L2) (H1 op H2) */ + } + /* stack: L H */ + lbuild(t); + break; + case TOK_SAR: + case TOK_SHR: + case TOK_SHL: + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { + t = vtop[-1].type.t; + vswap(); + lexpand(); + vrotb(3); + /* stack: L H shift */ + c = (int)vtop->c.i; + /* constant: simpler */ + /* NOTE: all comments are for SHL. the other cases are + done by swaping words */ + vpop(); + if (op != TOK_SHL) + vswap(); + if (c >= 32) { + /* stack: L H */ + vpop(); + if (c > 32) { + vpushi(c - 32); + gen_op(op); + } + if (op != TOK_SAR) { + vpushi(0); + } else { + gv_dup(); + vpushi(31); + gen_op(TOK_SAR); + } + vswap(); + } else { + vswap(); + gv_dup(); + /* stack: H L L */ + vpushi(c); + gen_op(op); + vswap(); + vpushi(32 - c); + if (op == TOK_SHL) + gen_op(TOK_SHR); + else + gen_op(TOK_SHL); + vrotb(3); + /* stack: L L H */ + vpushi(c); + if (op == TOK_SHL) + gen_op(TOK_SHL); + else + gen_op(TOK_SHR); + gen_op('|'); + } + if (op != TOK_SHL) + vswap(); + lbuild(t); + } else { + /* XXX: should provide a faster fallback on x86 ? */ + switch(op) { + case TOK_SAR: + func = TOK___ashrdi3; + goto gen_func; + case TOK_SHR: + func = TOK___lshrdi3; + goto gen_func; + case TOK_SHL: + func = TOK___ashldi3; + goto gen_func; + } + } + break; + default: + /* compare operations */ + t = vtop->type.t; + vswap(); + lexpand(); + vrotb(3); + lexpand(); + /* stack: L1 H1 L2 H2 */ + tmp = vtop[-1]; + vtop[-1] = vtop[-2]; + vtop[-2] = tmp; + /* stack: L1 L2 H1 H2 */ + /* compare high */ + op1 = op; + /* when values are equal, we need to compare low words. since + the jump is inverted, we invert the test too. */ + if (op1 == TOK_LT) + op1 = TOK_LE; + else if (op1 == TOK_GT) + op1 = TOK_GE; + else if (op1 == TOK_ULT) + op1 = TOK_ULE; + else if (op1 == TOK_UGT) + op1 = TOK_UGE; + a = 0; + b = 0; + gen_op(op1); + if (op1 != TOK_NE) { + a = gvtst(1, 0); + } + if (op != TOK_EQ) { + /* generate non equal test */ + /* XXX: NOT PORTABLE yet */ + if (a == 0) { + b = gvtst(0, 0); + } else { +#if defined(TCC_TARGET_I386) + b = psym(0x850f, 0); +#elif defined(TCC_TARGET_ARM) + b = ind; + o(0x1A000000 | encbranch(ind, 0, 1)); +#elif defined(TCC_TARGET_C67) || defined(TCC_TARGET_ARM64) + tcc_error("not implemented"); +#else +#error not supported +#endif + } + } + /* compare low. Always unsigned */ + op1 = op; + if (op1 == TOK_LT) + op1 = TOK_ULT; + else if (op1 == TOK_LE) + op1 = TOK_ULE; + else if (op1 == TOK_GT) + op1 = TOK_UGT; + else if (op1 == TOK_GE) + op1 = TOK_UGE; + gen_op(op1); + a = gvtst(1, a); + gsym(b); + vseti(VT_JMPI, a); + break; + } +} +#endif + +static uint64_t gen_opic_sdiv(uint64_t a, uint64_t b) +{ + uint64_t x = (a >> 63 ? -a : a) / (b >> 63 ? -b : b); + return (a ^ b) >> 63 ? -x : x; +} + +static int gen_opic_lt(uint64_t a, uint64_t b) +{ + return (a ^ (uint64_t)1 << 63) < (b ^ (uint64_t)1 << 63); +} + +/* handle integer constant optimizations and various machine + independent opt */ +static void gen_opic(int op) +{ + SValue *v1 = vtop - 1; + SValue *v2 = vtop; + int t1 = v1->type.t & VT_BTYPE; + int t2 = v2->type.t & VT_BTYPE; + int c1 = (v1->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST; + int c2 = (v2->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST; + uint64_t l1 = c1 ? v1->c.i : 0; + uint64_t l2 = c2 ? v2->c.i : 0; + int shm = (t1 == VT_LLONG) ? 63 : 31; + + if (t1 != VT_LLONG) + l1 = ((uint32_t)l1 | + (v1->type.t & VT_UNSIGNED ? 0 : -(l1 & 0x80000000))); + if (t2 != VT_LLONG) + l2 = ((uint32_t)l2 | + (v2->type.t & VT_UNSIGNED ? 0 : -(l2 & 0x80000000))); + + if (c1 && c2) { + switch(op) { + case '+': l1 += l2; break; + case '-': l1 -= l2; break; + case '&': l1 &= l2; break; + case '^': l1 ^= l2; break; + case '|': l1 |= l2; break; + case '*': l1 *= l2; break; + + case TOK_PDIV: + case '/': + case '%': + case TOK_UDIV: + case TOK_UMOD: + /* if division by zero, generate explicit division */ + if (l2 == 0) { + if (const_wanted) + tcc_error("division by zero in constant"); + goto general_case; + } + switch(op) { + default: l1 = gen_opic_sdiv(l1, l2); break; + case '%': l1 = l1 - l2 * gen_opic_sdiv(l1, l2); break; + case TOK_UDIV: l1 = l1 / l2; break; + case TOK_UMOD: l1 = l1 % l2; break; + } + break; + case TOK_SHL: l1 <<= (l2 & shm); break; + case TOK_SHR: l1 >>= (l2 & shm); break; + case TOK_SAR: + l1 = (l1 >> 63) ? ~(~l1 >> (l2 & shm)) : l1 >> (l2 & shm); + break; + /* tests */ + case TOK_ULT: l1 = l1 < l2; break; + case TOK_UGE: l1 = l1 >= l2; break; + case TOK_EQ: l1 = l1 == l2; break; + case TOK_NE: l1 = l1 != l2; break; + case TOK_ULE: l1 = l1 <= l2; break; + case TOK_UGT: l1 = l1 > l2; break; + case TOK_LT: l1 = gen_opic_lt(l1, l2); break; + case TOK_GE: l1 = !gen_opic_lt(l1, l2); break; + case TOK_LE: l1 = !gen_opic_lt(l2, l1); break; + case TOK_GT: l1 = gen_opic_lt(l2, l1); break; + /* logical */ + case TOK_LAND: l1 = l1 && l2; break; + case TOK_LOR: l1 = l1 || l2; break; + default: + goto general_case; + } + v1->c.i = l1; + vtop--; + } else { + /* if commutative ops, put c2 as constant */ + if (c1 && (op == '+' || op == '&' || op == '^' || + op == '|' || op == '*')) { + vswap(); + c2 = c1; //c = c1, c1 = c2, c2 = c; + l2 = l1; //l = l1, l1 = l2, l2 = l; + } + if (!const_wanted && + c1 && ((l1 == 0 && + (op == TOK_SHL || op == TOK_SHR || op == TOK_SAR)) || + (l1 == -1 && op == TOK_SAR))) { + /* treat (0 << x), (0 >> x) and (-1 >> x) as constant */ + vtop--; + } else if (!const_wanted && + c2 && ((l2 == 0 && (op == '&' || op == '*')) || + (l2 == -1 && op == '|') || + (l2 == 0xffffffff && t2 != VT_LLONG && op == '|') || + (l2 == 1 && (op == '%' || op == TOK_UMOD)))) { + /* treat (x & 0), (x * 0), (x | -1) and (x % 1) as constant */ + if (l2 == 1) + vtop->c.i = 0; + vswap(); + vtop--; + } else if (c2 && (((op == '*' || op == '/' || op == TOK_UDIV || + op == TOK_PDIV) && + l2 == 1) || + ((op == '+' || op == '-' || op == '|' || op == '^' || + op == TOK_SHL || op == TOK_SHR || op == TOK_SAR) && + l2 == 0) || + (op == '&' && + l2 == -1))) { + /* filter out NOP operations like x*1, x-0, x&-1... */ + vtop--; + } else if (c2 && (op == '*' || op == TOK_PDIV || op == TOK_UDIV)) { + /* try to use shifts instead of muls or divs */ + if (l2 > 0 && (l2 & (l2 - 1)) == 0) { + int n = -1; + while (l2) { + l2 >>= 1; + n++; + } + vtop->c.i = n; + if (op == '*') + op = TOK_SHL; + else if (op == TOK_PDIV) + op = TOK_SAR; + else + op = TOK_SHR; + } + goto general_case; + } else if (c2 && (op == '+' || op == '-') && + (((vtop[-1].r & (VT_VALMASK | VT_LVAL | VT_SYM)) == (VT_CONST | VT_SYM)) + || (vtop[-1].r & (VT_VALMASK | VT_LVAL)) == VT_LOCAL)) { + /* symbol + constant case */ + if (op == '-') + l2 = -l2; + vtop--; + vtop->c.i += l2; + } else { + general_case: + if (!nocode_wanted) { + /* call low level op generator */ + if (t1 == VT_LLONG || t2 == VT_LLONG || + (PTR_SIZE == 8 && (t1 == VT_PTR || t2 == VT_PTR))) + gen_opl(op); + else + gen_opi(op); + } else { + vtop--; + } + } + } +} + +/* generate a floating point operation with constant propagation */ +static void gen_opif(int op) +{ + int c1, c2; + SValue *v1, *v2; + long double f1, f2; + + v1 = vtop - 1; + v2 = vtop; + /* currently, we cannot do computations with forward symbols */ + c1 = (v1->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST; + c2 = (v2->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST; + if (c1 && c2) { + if (v1->type.t == VT_FLOAT) { + f1 = v1->c.f; + f2 = v2->c.f; + } else if (v1->type.t == VT_DOUBLE) { + f1 = v1->c.d; + f2 = v2->c.d; + } else { + f1 = v1->c.ld; + f2 = v2->c.ld; + } + + /* NOTE: we only do constant propagation if finite number (not + NaN or infinity) (ANSI spec) */ + if (!ieee_finite(f1) || !ieee_finite(f2)) + goto general_case; + + switch(op) { + case '+': f1 += f2; break; + case '-': f1 -= f2; break; + case '*': f1 *= f2; break; + case '/': + if (f2 == 0.0) { + if (const_wanted) + tcc_error("division by zero in constant"); + goto general_case; + } + f1 /= f2; + break; + /* XXX: also handles tests ? */ + default: + goto general_case; + } + /* XXX: overflow test ? */ + if (v1->type.t == VT_FLOAT) { + v1->c.f = f1; + } else if (v1->type.t == VT_DOUBLE) { + v1->c.d = f1; + } else { + v1->c.ld = f1; + } + vtop--; + } else { + general_case: + if (!nocode_wanted) { + gen_opf(op); + } else { + vtop--; + } + } +} + +static int pointed_size(CType *type) +{ + int align; + return type_size(pointed_type(type), &align); +} + +static void vla_runtime_pointed_size(CType *type) +{ + int align; + vla_runtime_type_size(pointed_type(type), &align); +} + +static inline int is_null_pointer(SValue *p) +{ + if ((p->r & (VT_VALMASK | VT_LVAL | VT_SYM)) != VT_CONST) + return 0; + return ((p->type.t & VT_BTYPE) == VT_INT && (uint32_t)p->c.i == 0) || + ((p->type.t & VT_BTYPE) == VT_LLONG && p->c.i == 0) || + ((p->type.t & VT_BTYPE) == VT_PTR && + (PTR_SIZE == 4 ? (uint32_t)p->c.i == 0 : p->c.i == 0)); +} + +static inline int is_integer_btype(int bt) +{ + return (bt == VT_BYTE || bt == VT_SHORT || + bt == VT_INT || bt == VT_LLONG); +} + +/* check types for comparison or subtraction of pointers */ +static void check_comparison_pointer_types(SValue *p1, SValue *p2, int op) +{ + CType *type1, *type2, tmp_type1, tmp_type2; + int bt1, bt2; + + /* null pointers are accepted for all comparisons as gcc */ + if (is_null_pointer(p1) || is_null_pointer(p2)) + return; + type1 = &p1->type; + type2 = &p2->type; + bt1 = type1->t & VT_BTYPE; + bt2 = type2->t & VT_BTYPE; + /* accept comparison between pointer and integer with a warning */ + if ((is_integer_btype(bt1) || is_integer_btype(bt2)) && op != '-') { + if (op != TOK_LOR && op != TOK_LAND ) + tcc_warning("comparison between pointer and integer"); + return; + } + + /* both must be pointers or implicit function pointers */ + if (bt1 == VT_PTR) { + type1 = pointed_type(type1); + } else if (bt1 != VT_FUNC) + goto invalid_operands; + + if (bt2 == VT_PTR) { + type2 = pointed_type(type2); + } else if (bt2 != VT_FUNC) { + invalid_operands: + tcc_error("invalid operands to binary %s", get_tok_str(op, NULL)); + } + if ((type1->t & VT_BTYPE) == VT_VOID || + (type2->t & VT_BTYPE) == VT_VOID) + return; + tmp_type1 = *type1; + tmp_type2 = *type2; + tmp_type1.t &= ~(VT_DEFSIGN | VT_UNSIGNED | VT_CONSTANT | VT_VOLATILE); + tmp_type2.t &= ~(VT_DEFSIGN | VT_UNSIGNED | VT_CONSTANT | VT_VOLATILE); + if (!is_compatible_types(&tmp_type1, &tmp_type2)) { + /* gcc-like error if '-' is used */ + if (op == '-') + goto invalid_operands; + else + tcc_warning("comparison of distinct pointer types lacks a cast"); + } +} + +/* generic gen_op: handles types problems */ +ST_FUNC void gen_op(int op) +{ + int u, t1, t2, bt1, bt2, t; + CType type1; + + t1 = vtop[-1].type.t; + t2 = vtop[0].type.t; + bt1 = t1 & VT_BTYPE; + bt2 = t2 & VT_BTYPE; + + if (bt1 == VT_PTR || bt2 == VT_PTR) { + /* at least one operand is a pointer */ + /* relationnal op: must be both pointers */ + if (op >= TOK_ULT && op <= TOK_LOR) { + check_comparison_pointer_types(vtop - 1, vtop, op); + /* pointers are handled are unsigned */ +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + t = VT_LLONG | VT_UNSIGNED; +#else + t = VT_INT | VT_UNSIGNED; +#endif + goto std_op; + } + /* if both pointers, then it must be the '-' op */ + if (bt1 == VT_PTR && bt2 == VT_PTR) { + if (op != '-') + tcc_error("cannot use pointers here"); + check_comparison_pointer_types(vtop - 1, vtop, op); + /* XXX: check that types are compatible */ + if (vtop[-1].type.t & VT_VLA) { + vla_runtime_pointed_size(&vtop[-1].type); + } else { + vpushi(pointed_size(&vtop[-1].type)); + } + vrott(3); + gen_opic(op); + /* set to integer type */ +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + vtop->type.t = VT_LLONG; +#else + vtop->type.t = VT_INT; +#endif + vswap(); + gen_op(TOK_PDIV); + } else { + /* exactly one pointer : must be '+' or '-'. */ + if (op != '-' && op != '+') + tcc_error("cannot use pointers here"); + /* Put pointer as first operand */ + if (bt2 == VT_PTR) { + vswap(); + swap(&t1, &t2); + } + type1 = vtop[-1].type; + type1.t &= ~VT_ARRAY; + if (vtop[-1].type.t & VT_VLA) + vla_runtime_pointed_size(&vtop[-1].type); + else { + u = pointed_size(&vtop[-1].type); + if (u < 0) + tcc_error("unknown array element size"); +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + vpushll(u); +#else + /* XXX: cast to int ? (long long case) */ + vpushi(u); +#endif + } + gen_op('*'); +#if 0 +/* #ifdef CONFIG_TCC_BCHECK + The main reason to removing this code: + #include + int main () + { + int v[10]; + int i = 10; + int j = 9; + fprintf(stderr, "v+i-j = %p\n", v+i-j); + fprintf(stderr, "v+(i-j) = %p\n", v+(i-j)); + } + When this code is on. then the output looks like + v+i-j = 0xfffffffe + v+(i-j) = 0xbff84000 + */ + /* if evaluating constant expression, no code should be + generated, so no bound check */ + if (tcc_state->do_bounds_check && !const_wanted) { + /* if bounded pointers, we generate a special code to + test bounds */ + if (op == '-') { + vpushi(0); + vswap(); + gen_op('-'); + } + gen_bounded_ptr_add(); + } else +#endif + { + gen_opic(op); + } + /* put again type if gen_opic() swaped operands */ + vtop->type = type1; + } + } else if (is_float(bt1) || is_float(bt2)) { + /* compute bigger type and do implicit casts */ + if (bt1 == VT_LDOUBLE || bt2 == VT_LDOUBLE) { + t = VT_LDOUBLE; + } else if (bt1 == VT_DOUBLE || bt2 == VT_DOUBLE) { + t = VT_DOUBLE; + } else { + t = VT_FLOAT; + } + /* floats can only be used for a few operations */ + if (op != '+' && op != '-' && op != '*' && op != '/' && + (op < TOK_ULT || op > TOK_GT)) + tcc_error("invalid operands for binary operation"); + goto std_op; + } else if (op == TOK_SHR || op == TOK_SAR || op == TOK_SHL) { + t = bt1 == VT_LLONG ? VT_LLONG : VT_INT; + if ((t1 & (VT_BTYPE | VT_UNSIGNED)) == (t | VT_UNSIGNED)) + t |= VT_UNSIGNED; + goto std_op; + } else if (bt1 == VT_LLONG || bt2 == VT_LLONG) { + /* cast to biggest op */ + t = VT_LLONG; + /* convert to unsigned if it does not fit in a long long */ + if ((t1 & (VT_BTYPE | VT_UNSIGNED)) == (VT_LLONG | VT_UNSIGNED) || + (t2 & (VT_BTYPE | VT_UNSIGNED)) == (VT_LLONG | VT_UNSIGNED)) + t |= VT_UNSIGNED; + goto std_op; + } else if (bt1 == VT_STRUCT || bt2 == VT_STRUCT) { + tcc_error("comparison of struct"); + } else { + /* integer operations */ + t = VT_INT; + /* convert to unsigned if it does not fit in an integer */ + if ((t1 & (VT_BTYPE | VT_UNSIGNED)) == (VT_INT | VT_UNSIGNED) || + (t2 & (VT_BTYPE | VT_UNSIGNED)) == (VT_INT | VT_UNSIGNED)) + t |= VT_UNSIGNED; + std_op: + /* XXX: currently, some unsigned operations are explicit, so + we modify them here */ + if (t & VT_UNSIGNED) { + if (op == TOK_SAR) + op = TOK_SHR; + else if (op == '/') + op = TOK_UDIV; + else if (op == '%') + op = TOK_UMOD; + else if (op == TOK_LT) + op = TOK_ULT; + else if (op == TOK_GT) + op = TOK_UGT; + else if (op == TOK_LE) + op = TOK_ULE; + else if (op == TOK_GE) + op = TOK_UGE; + } + vswap(); + type1.t = t; + gen_cast(&type1); + vswap(); + /* special case for shifts and long long: we keep the shift as + an integer */ + if (op == TOK_SHR || op == TOK_SAR || op == TOK_SHL) + type1.t = VT_INT; + gen_cast(&type1); + if (is_float(t)) + gen_opif(op); + else + gen_opic(op); + if (op >= TOK_ULT && op <= TOK_GT) { + /* relationnal op: the result is an int */ + vtop->type.t = VT_INT; + } else { + vtop->type.t = t; + } + } + // Make sure that we have converted to an rvalue: + if (vtop->r & VT_LVAL && !nocode_wanted) + gv(is_float(vtop->type.t & VT_BTYPE) ? RC_FLOAT : RC_INT); +} + +#ifndef TCC_TARGET_ARM +/* generic itof for unsigned long long case */ +static void gen_cvt_itof1(int t) +{ +#ifdef TCC_TARGET_ARM64 + gen_cvt_itof(t); +#else + if ((vtop->type.t & (VT_BTYPE | VT_UNSIGNED)) == + (VT_LLONG | VT_UNSIGNED)) { + + if (t == VT_FLOAT) + vpush_global_sym(&func_old_type, TOK___floatundisf); +#if LDOUBLE_SIZE != 8 + else if (t == VT_LDOUBLE) + vpush_global_sym(&func_old_type, TOK___floatundixf); +#endif + else + vpush_global_sym(&func_old_type, TOK___floatundidf); + vrott(2); + gfunc_call(1); + vpushi(0); + vtop->r = reg_fret(t); + } else { + gen_cvt_itof(t); + } +#endif +} +#endif + +/* generic ftoi for unsigned long long case */ +static void gen_cvt_ftoi1(int t) +{ +#ifdef TCC_TARGET_ARM64 + gen_cvt_ftoi(t); +#else + int st; + + if (t == (VT_LLONG | VT_UNSIGNED)) { + /* not handled natively */ + st = vtop->type.t & VT_BTYPE; + if (st == VT_FLOAT) + vpush_global_sym(&func_old_type, TOK___fixunssfdi); +#if LDOUBLE_SIZE != 8 + else if (st == VT_LDOUBLE) + vpush_global_sym(&func_old_type, TOK___fixunsxfdi); +#endif + else + vpush_global_sym(&func_old_type, TOK___fixunsdfdi); + vrott(2); + gfunc_call(1); + vpushi(0); + vtop->r = REG_IRET; + vtop->r2 = REG_LRET; + } else { + gen_cvt_ftoi(t); + } +#endif +} + +/* force char or short cast */ +static void force_charshort_cast(int t) +{ + int bits, dbt; + dbt = t & VT_BTYPE; + /* XXX: add optimization if lvalue : just change type and offset */ + if (dbt == VT_BYTE) + bits = 8; + else + bits = 16; + if (t & VT_UNSIGNED) { + vpushi((1 << bits) - 1); + gen_op('&'); + } else { + bits = 32 - bits; + vpushi(bits); + gen_op(TOK_SHL); + /* result must be signed or the SAR is converted to an SHL + This was not the case when "t" was a signed short + and the last value on the stack was an unsigned int */ + vtop->type.t &= ~VT_UNSIGNED; + vpushi(bits); + gen_op(TOK_SAR); + } +} + +/* cast 'vtop' to 'type'. Casting to bitfields is forbidden. */ +static void gen_cast(CType *type) +{ + int sbt, dbt, sf, df, c, p; + + /* special delayed cast for char/short */ + /* XXX: in some cases (multiple cascaded casts), it may still + be incorrect */ + if (vtop->r & VT_MUSTCAST) { + vtop->r &= ~VT_MUSTCAST; + force_charshort_cast(vtop->type.t); + } + + /* bitfields first get cast to ints */ + if (vtop->type.t & VT_BITFIELD && !nocode_wanted) { + gv(RC_INT); + } + + dbt = type->t & (VT_BTYPE | VT_UNSIGNED); + sbt = vtop->type.t & (VT_BTYPE | VT_UNSIGNED); + + if (sbt != dbt) { + sf = is_float(sbt); + df = is_float(dbt); + c = (vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST; + p = (vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == (VT_CONST | VT_SYM); + if (c) { + /* constant case: we can do it now */ + /* XXX: in ISOC, cannot do it if error in convert */ + if (sbt == VT_FLOAT) + vtop->c.ld = vtop->c.f; + else if (sbt == VT_DOUBLE) + vtop->c.ld = vtop->c.d; + + if (df) { + if ((sbt & VT_BTYPE) == VT_LLONG) { + if ((sbt & VT_UNSIGNED) || !(vtop->c.i >> 63)) + vtop->c.ld = vtop->c.i; + else + vtop->c.ld = -(long double)-vtop->c.i; + } else if(!sf) { + if ((sbt & VT_UNSIGNED) || !(vtop->c.i >> 31)) + vtop->c.ld = (uint32_t)vtop->c.i; + else + vtop->c.ld = -(long double)-(uint32_t)vtop->c.i; + } + + if (dbt == VT_FLOAT) + vtop->c.f = (float)vtop->c.ld; + else if (dbt == VT_DOUBLE) + vtop->c.d = (double)vtop->c.ld; + } else if (sf && dbt == (VT_LLONG|VT_UNSIGNED)) { + vtop->c.i = vtop->c.ld; + } else if (sf && dbt == VT_BOOL) { + vtop->c.i = (vtop->c.ld != 0); + } else { + if(sf) + vtop->c.i = vtop->c.ld; + else if (sbt == (VT_LLONG|VT_UNSIGNED)) + ; + else if (sbt & VT_UNSIGNED) + vtop->c.i = (uint32_t)vtop->c.i; +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + else if (sbt == VT_PTR) + ; +#endif + else if (sbt != VT_LLONG) + vtop->c.i = ((uint32_t)vtop->c.i | + -(vtop->c.i & 0x80000000)); + + if (dbt == (VT_LLONG|VT_UNSIGNED)) + ; + else if (dbt == VT_BOOL) + vtop->c.i = (vtop->c.i != 0); +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + else if (dbt == VT_PTR) + ; +#endif + else if (dbt != VT_LLONG) { + uint32_t m = ((dbt & VT_BTYPE) == VT_BYTE ? 0xff : + (dbt & VT_BTYPE) == VT_SHORT ? 0xffff : + 0xffffffff); + vtop->c.i &= m; + if (!(dbt & VT_UNSIGNED)) + vtop->c.i |= -(vtop->c.i & ((m >> 1) + 1)); + } + } + } else if (p && dbt == VT_BOOL) { + vtop->r = VT_CONST; + vtop->c.i = 1; + } else if (!nocode_wanted) { + /* non constant case: generate code */ + if (sf && df) { + /* convert from fp to fp */ + gen_cvt_ftof(dbt); + } else if (df) { + /* convert int to fp */ + gen_cvt_itof1(dbt); + } else if (sf) { + /* convert fp to int */ + if (dbt == VT_BOOL) { + vpushi(0); + gen_op(TOK_NE); + } else { + /* we handle char/short/etc... with generic code */ + if (dbt != (VT_INT | VT_UNSIGNED) && + dbt != (VT_LLONG | VT_UNSIGNED) && + dbt != VT_LLONG) + dbt = VT_INT; + gen_cvt_ftoi1(dbt); + if (dbt == VT_INT && (type->t & (VT_BTYPE | VT_UNSIGNED)) != dbt) { + /* additional cast for char/short... */ + vtop->type.t = dbt; + gen_cast(type); + } + } +#if !defined(TCC_TARGET_ARM64) && !defined(TCC_TARGET_X86_64) + } else if ((dbt & VT_BTYPE) == VT_LLONG) { + if ((sbt & VT_BTYPE) != VT_LLONG && !nocode_wanted) { + /* scalar to long long */ + /* machine independent conversion */ + gv(RC_INT); + /* generate high word */ + if (sbt == (VT_INT | VT_UNSIGNED)) { + vpushi(0); + gv(RC_INT); + } else { + if (sbt == VT_PTR) { + /* cast from pointer to int before we apply + shift operation, which pointers don't support*/ + gen_cast(&int_type); + } + gv_dup(); + vpushi(31); + gen_op(TOK_SAR); + } + /* patch second register */ + vtop[-1].r2 = vtop->r; + vpop(); + } +#else + } else if ((dbt & VT_BTYPE) == VT_LLONG || + (dbt & VT_BTYPE) == VT_PTR || + (dbt & VT_BTYPE) == VT_FUNC) { + if ((sbt & VT_BTYPE) != VT_LLONG && + (sbt & VT_BTYPE) != VT_PTR && + (sbt & VT_BTYPE) != VT_FUNC && !nocode_wanted) { + /* need to convert from 32bit to 64bit */ + gv(RC_INT); + if (sbt != (VT_INT | VT_UNSIGNED)) { +#if defined(TCC_TARGET_ARM64) + gen_cvt_sxtw(); +#elif defined(TCC_TARGET_X86_64) + int r = gv(RC_INT); + /* x86_64 specific: movslq */ + o(0x6348); + o(0xc0 + (REG_VALUE(r) << 3) + REG_VALUE(r)); +#else +#error +#endif + } + } +#endif + } else if (dbt == VT_BOOL) { + /* scalar to bool */ + vpushi(0); + gen_op(TOK_NE); + } else if ((dbt & VT_BTYPE) == VT_BYTE || + (dbt & VT_BTYPE) == VT_SHORT) { + if (sbt == VT_PTR) { + vtop->type.t = VT_INT; + tcc_warning("nonportable conversion from pointer to char/short"); + } + force_charshort_cast(dbt); + } else if ((dbt & VT_BTYPE) == VT_INT) { + /* scalar to int */ + if (sbt == VT_LLONG && !nocode_wanted) { + /* from long long: just take low order word */ + lexpand(); + vpop(); + } + /* if lvalue and single word type, nothing to do because + the lvalue already contains the real type size (see + VT_LVAL_xxx constants) */ + } + } + } else if ((dbt & VT_BTYPE) == VT_PTR && !(vtop->r & VT_LVAL)) { + /* if we are casting between pointer types, + we must update the VT_LVAL_xxx size */ + vtop->r = (vtop->r & ~VT_LVAL_TYPE) + | (lvalue_type(type->ref->type.t) & VT_LVAL_TYPE); + } + vtop->type = *type; +} + +/* return type size as known at compile time. Put alignment at 'a' */ +ST_FUNC int type_size(CType *type, int *a) +{ + Sym *s; + int bt; + + bt = type->t & VT_BTYPE; + if (bt == VT_STRUCT) { + /* struct/union */ + s = type->ref; + *a = s->r; + return s->c; + } else if (bt == VT_PTR) { + if (type->t & VT_ARRAY) { + int ts; + + s = type->ref; + ts = type_size(&s->type, a); + + if (ts < 0 && s->c < 0) + ts = -ts; + + return ts * s->c; + } else { + *a = PTR_SIZE; + return PTR_SIZE; + } + } else if (bt == VT_LDOUBLE) { + *a = LDOUBLE_ALIGN; + return LDOUBLE_SIZE; + } else if (bt == VT_DOUBLE || bt == VT_LLONG) { +#ifdef TCC_TARGET_I386 +#ifdef TCC_TARGET_PE + *a = 8; +#else + *a = 4; +#endif +#elif defined(TCC_TARGET_ARM) +#ifdef TCC_ARM_EABI + *a = 8; +#else + *a = 4; +#endif +#else + *a = 8; +#endif + return 8; + } else if (bt == VT_INT || bt == VT_FLOAT) { + *a = 4; + return 4; + } else if (bt == VT_SHORT) { + *a = 2; + return 2; + } else if (bt == VT_QLONG || bt == VT_QFLOAT) { + *a = 8; + return 16; + } else if (bt == VT_ENUM) { + *a = 4; + /* Enums might be incomplete, so don't just return '4' here. */ + return type->ref->c; + } else { + /* char, void, function, _Bool */ + *a = 1; + return 1; + } +} + +/* push type size as known at runtime time on top of value stack. Put + alignment at 'a' */ +ST_FUNC void vla_runtime_type_size(CType *type, int *a) +{ + if (type->t & VT_VLA) { + vset(&int_type, VT_LOCAL|VT_LVAL, type->ref->c); + } else { + vpushi(type_size(type, a)); + } +} + +static void vla_sp_restore(void) { + if (vlas_in_scope) { + gen_vla_sp_restore(vla_sp_loc); + } +} + +static void vla_sp_restore_root(void) { + if (vlas_in_scope) { + gen_vla_sp_restore(vla_sp_root_loc); + } +} + +/* return the pointed type of t */ +static inline CType *pointed_type(CType *type) +{ + return &type->ref->type; +} + +/* modify type so that its it is a pointer to type. */ +ST_FUNC void mk_pointer(CType *type) +{ + Sym *s; + s = sym_push(SYM_FIELD, type, 0, -1); + type->t = VT_PTR | (type->t & ~VT_TYPE); + type->ref = s; +} + +/* compare function types. OLD functions match any new functions */ +static int is_compatible_func(CType *type1, CType *type2) +{ + Sym *s1, *s2; + + s1 = type1->ref; + s2 = type2->ref; + if (!is_compatible_types(&s1->type, &s2->type)) + return 0; + /* check func_call */ + if (s1->a.func_call != s2->a.func_call) + return 0; + /* XXX: not complete */ + if (s1->c == FUNC_OLD || s2->c == FUNC_OLD) + return 1; + if (s1->c != s2->c) + return 0; + while (s1 != NULL) { + if (s2 == NULL) + return 0; + if (!is_compatible_parameter_types(&s1->type, &s2->type)) + return 0; + s1 = s1->next; + s2 = s2->next; + } + if (s2) + return 0; + return 1; +} + +/* return true if type1 and type2 are the same. If unqualified is + true, qualifiers on the types are ignored. + + - enums are not checked as gcc __builtin_types_compatible_p () + */ +static int compare_types(CType *type1, CType *type2, int unqualified) +{ + int bt1, t1, t2; + + t1 = type1->t & VT_TYPE; + t2 = type2->t & VT_TYPE; + if (unqualified) { + /* strip qualifiers before comparing */ + t1 &= ~(VT_CONSTANT | VT_VOLATILE); + t2 &= ~(VT_CONSTANT | VT_VOLATILE); + } + /* Default Vs explicit signedness only matters for char */ + if ((t1 & VT_BTYPE) != VT_BYTE) { + t1 &= ~VT_DEFSIGN; + t2 &= ~VT_DEFSIGN; + } + /* XXX: bitfields ? */ + if (t1 != t2) + return 0; + /* test more complicated cases */ + bt1 = t1 & VT_BTYPE; + if (bt1 == VT_PTR) { + type1 = pointed_type(type1); + type2 = pointed_type(type2); + return is_compatible_types(type1, type2); + } else if (bt1 == VT_STRUCT) { + return (type1->ref == type2->ref); + } else if (bt1 == VT_FUNC) { + return is_compatible_func(type1, type2); + } else { + return 1; + } +} + +/* return true if type1 and type2 are exactly the same (including + qualifiers). +*/ +static int is_compatible_types(CType *type1, CType *type2) +{ + return compare_types(type1,type2,0); +} + +/* return true if type1 and type2 are the same (ignoring qualifiers). +*/ +static int is_compatible_parameter_types(CType *type1, CType *type2) +{ + return compare_types(type1,type2,1); +} + +/* print a type. If 'varstr' is not NULL, then the variable is also + printed in the type */ +/* XXX: union */ +/* XXX: add array and function pointers */ +static void type_to_str(char *buf, int buf_size, + CType *type, const char *varstr) +{ + int bt, v, t; + Sym *s, *sa; + char buf1[256]; + const char *tstr; + + t = type->t & VT_TYPE; + bt = t & VT_BTYPE; + buf[0] = '\0'; + if (t & VT_CONSTANT) + pstrcat(buf, buf_size, "const "); + if (t & VT_VOLATILE) + pstrcat(buf, buf_size, "volatile "); + if ((t & (VT_DEFSIGN | VT_UNSIGNED)) == (VT_DEFSIGN | VT_UNSIGNED)) + pstrcat(buf, buf_size, "unsigned "); + else if (t & VT_DEFSIGN) + pstrcat(buf, buf_size, "signed "); + switch(bt) { + case VT_VOID: + tstr = "void"; + goto add_tstr; + case VT_BOOL: + tstr = "_Bool"; + goto add_tstr; + case VT_BYTE: + tstr = "char"; + goto add_tstr; + case VT_SHORT: + tstr = "short"; + goto add_tstr; + case VT_INT: + tstr = "int"; + goto add_tstr; + case VT_LONG: + tstr = "long"; + goto add_tstr; + case VT_LLONG: + tstr = "long long"; + goto add_tstr; + case VT_FLOAT: + tstr = "float"; + goto add_tstr; + case VT_DOUBLE: + tstr = "double"; + goto add_tstr; + case VT_LDOUBLE: + tstr = "long double"; + add_tstr: + pstrcat(buf, buf_size, tstr); + break; + case VT_ENUM: + case VT_STRUCT: + if (bt == VT_STRUCT) + tstr = "struct "; + else + tstr = "enum "; + pstrcat(buf, buf_size, tstr); + v = type->ref->v & ~SYM_STRUCT; + if (v >= SYM_FIRST_ANOM) + pstrcat(buf, buf_size, ""); + else + pstrcat(buf, buf_size, get_tok_str(v, NULL)); + break; + case VT_FUNC: + s = type->ref; + type_to_str(buf, buf_size, &s->type, varstr); + pstrcat(buf, buf_size, "("); + sa = s->next; + while (sa != NULL) { + type_to_str(buf1, sizeof(buf1), &sa->type, NULL); + pstrcat(buf, buf_size, buf1); + sa = sa->next; + if (sa) + pstrcat(buf, buf_size, ", "); + } + pstrcat(buf, buf_size, ")"); + goto no_var; + case VT_PTR: + s = type->ref; + if (t & VT_ARRAY) { + snprintf(buf1, sizeof(buf1), "%s[%ld]", varstr ? varstr : "", s->c); + type_to_str(buf, buf_size, &s->type, buf1); + goto no_var; + } + pstrcpy(buf1, sizeof(buf1), "*"); + if (t & VT_CONSTANT) + pstrcat(buf1, buf_size, "const "); + if (t & VT_VOLATILE) + pstrcat(buf1, buf_size, "volatile "); + if (varstr) + pstrcat(buf1, sizeof(buf1), varstr); + type_to_str(buf, buf_size, &s->type, buf1); + goto no_var; + } + if (varstr) { + pstrcat(buf, buf_size, " "); + pstrcat(buf, buf_size, varstr); + } + no_var: ; +} + +/* verify type compatibility to store vtop in 'dt' type, and generate + casts if needed. */ +static void gen_assign_cast(CType *dt) +{ + CType *st, *type1, *type2, tmp_type1, tmp_type2; + char buf1[256], buf2[256]; + int dbt, sbt; + + st = &vtop->type; /* source type */ + dbt = dt->t & VT_BTYPE; + sbt = st->t & VT_BTYPE; + if (sbt == VT_VOID || dbt == VT_VOID) { + if (sbt == VT_VOID && dbt == VT_VOID) + ; /* + It is Ok if both are void + A test program: + void func1() {} + void func2() { + return func1(); + } + gcc accepts this program + */ + else + tcc_error("cannot cast from/to void"); + } + if (dt->t & VT_CONSTANT) + tcc_warning("assignment of read-only location"); + switch(dbt) { + case VT_PTR: + /* special cases for pointers */ + /* '0' can also be a pointer */ + if (is_null_pointer(vtop)) + goto type_ok; + /* accept implicit pointer to integer cast with warning */ + if (is_integer_btype(sbt)) { + tcc_warning("assignment makes pointer from integer without a cast"); + goto type_ok; + } + type1 = pointed_type(dt); + /* a function is implicitely a function pointer */ + if (sbt == VT_FUNC) { + if ((type1->t & VT_BTYPE) != VT_VOID && + !is_compatible_types(pointed_type(dt), st)) + tcc_warning("assignment from incompatible pointer type"); + goto type_ok; + } + if (sbt != VT_PTR) + goto error; + type2 = pointed_type(st); + if ((type1->t & VT_BTYPE) == VT_VOID || + (type2->t & VT_BTYPE) == VT_VOID) { + /* void * can match anything */ + } else { + /* exact type match, except for unsigned */ + tmp_type1 = *type1; + tmp_type2 = *type2; + tmp_type1.t &= ~(VT_DEFSIGN | VT_UNSIGNED | VT_CONSTANT | + VT_VOLATILE); + tmp_type2.t &= ~(VT_DEFSIGN | VT_UNSIGNED | VT_CONSTANT | + VT_VOLATILE); + if (!is_compatible_types(&tmp_type1, &tmp_type2)) + tcc_warning("assignment from incompatible pointer type"); + } + /* check const and volatile */ + if ((!(type1->t & VT_CONSTANT) && (type2->t & VT_CONSTANT)) || + (!(type1->t & VT_VOLATILE) && (type2->t & VT_VOLATILE))) + tcc_warning("assignment discards qualifiers from pointer target type"); + break; + case VT_BYTE: + case VT_SHORT: + case VT_INT: + case VT_LLONG: + if (sbt == VT_PTR || sbt == VT_FUNC) { + tcc_warning("assignment makes integer from pointer without a cast"); + } + /* XXX: more tests */ + break; + case VT_STRUCT: + tmp_type1 = *dt; + tmp_type2 = *st; + tmp_type1.t &= ~(VT_CONSTANT | VT_VOLATILE); + tmp_type2.t &= ~(VT_CONSTANT | VT_VOLATILE); + if (!is_compatible_types(&tmp_type1, &tmp_type2)) { + error: + type_to_str(buf1, sizeof(buf1), st, NULL); + type_to_str(buf2, sizeof(buf2), dt, NULL); + tcc_error("cannot cast '%s' to '%s'", buf1, buf2); + } + break; + } + type_ok: + gen_cast(dt); +} + +/* store vtop in lvalue pushed on stack */ +ST_FUNC void vstore(void) +{ + int sbt, dbt, ft, r, t, size, align, bit_size, bit_pos, rc, delayed_cast; + + ft = vtop[-1].type.t; + sbt = vtop->type.t & VT_BTYPE; + dbt = ft & VT_BTYPE; + if ((((sbt == VT_INT || sbt == VT_SHORT) && dbt == VT_BYTE) || + (sbt == VT_INT && dbt == VT_SHORT)) + && !(vtop->type.t & VT_BITFIELD)) { + /* optimize char/short casts */ + delayed_cast = VT_MUSTCAST; + vtop->type.t = (ft & VT_TYPE & ~VT_BITFIELD & + ((1 << VT_STRUCT_SHIFT) - 1)); + /* XXX: factorize */ + if (ft & VT_CONSTANT) + tcc_warning("assignment of read-only location"); + } else { + delayed_cast = 0; + if (!(ft & VT_BITFIELD)) + gen_assign_cast(&vtop[-1].type); + } + + if (sbt == VT_STRUCT) { + /* if structure, only generate pointer */ + /* structure assignment : generate memcpy */ + /* XXX: optimize if small size */ + if (!nocode_wanted) { + size = type_size(&vtop->type, &align); + + /* destination */ + vswap(); + vtop->type.t = VT_PTR; + gaddrof(); + + /* address of memcpy() */ +#ifdef TCC_ARM_EABI + if(!(align & 7)) + vpush_global_sym(&func_old_type, TOK_memcpy8); + else if(!(align & 3)) + vpush_global_sym(&func_old_type, TOK_memcpy4); + else +#endif + /* Use memmove, rather than memcpy, as dest and src may be same: */ + vpush_global_sym(&func_old_type, TOK_memmove); + + vswap(); + /* source */ + vpushv(vtop - 2); + vtop->type.t = VT_PTR; + gaddrof(); + /* type size */ + vpushi(size); + gfunc_call(3); + } else { + vswap(); + vpop(); + } + /* leave source on stack */ + } else if (ft & VT_BITFIELD) { + /* bitfield store handling */ + + /* save lvalue as expression result (example: s.b = s.a = n;) */ + vdup(), vtop[-1] = vtop[-2]; + + bit_pos = (ft >> VT_STRUCT_SHIFT) & 0x3f; + bit_size = (ft >> (VT_STRUCT_SHIFT + 6)) & 0x3f; + /* remove bit field info to avoid loops */ + vtop[-1].type.t = ft & ~VT_BITFIELD & ((1 << VT_STRUCT_SHIFT) - 1); + + if((ft & VT_BTYPE) == VT_BOOL) { + gen_cast(&vtop[-1].type); + vtop[-1].type.t = (vtop[-1].type.t & ~VT_BTYPE) | (VT_BYTE | VT_UNSIGNED); + } + + /* duplicate destination */ + vdup(); + vtop[-1] = vtop[-2]; + + /* mask and shift source */ + if((ft & VT_BTYPE) != VT_BOOL) { + if((ft & VT_BTYPE) == VT_LLONG) { + vpushll((1ULL << bit_size) - 1ULL); + } else { + vpushi((1 << bit_size) - 1); + } + gen_op('&'); + } + vpushi(bit_pos); + gen_op(TOK_SHL); + /* load destination, mask and or with source */ + vswap(); + if((ft & VT_BTYPE) == VT_LLONG) { + vpushll(~(((1ULL << bit_size) - 1ULL) << bit_pos)); + } else { + vpushi(~(((1 << bit_size) - 1) << bit_pos)); + } + gen_op('&'); + gen_op('|'); + /* store result */ + vstore(); + /* ... and discard */ + vpop(); + + } else { + if (!nocode_wanted) { +#ifdef CONFIG_TCC_BCHECK + /* bound check case */ + if (vtop[-1].r & VT_MUSTBOUND) { + vswap(); + gbound(); + vswap(); + } +#endif + rc = RC_INT; + if (is_float(ft)) { + rc = RC_FLOAT; +#ifdef TCC_TARGET_X86_64 + if ((ft & VT_BTYPE) == VT_LDOUBLE) { + rc = RC_ST0; + } else if ((ft & VT_BTYPE) == VT_QFLOAT) { + rc = RC_FRET; + } +#endif + } + r = gv(rc); /* generate value */ + /* if lvalue was saved on stack, must read it */ + if ((vtop[-1].r & VT_VALMASK) == VT_LLOCAL) { + SValue sv; + t = get_reg(RC_INT); +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + sv.type.t = VT_PTR; +#else + sv.type.t = VT_INT; +#endif + sv.r = VT_LOCAL | VT_LVAL; + sv.c.i = vtop[-1].c.i; + load(t, &sv); + vtop[-1].r = t | VT_LVAL; + } + /* two word case handling : store second register at word + 4 (or +8 for x86-64) */ +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + if (((ft & VT_BTYPE) == VT_QLONG) || ((ft & VT_BTYPE) == VT_QFLOAT)) { + int addr_type = VT_LLONG, load_size = 8, load_type = ((vtop->type.t & VT_BTYPE) == VT_QLONG) ? VT_LLONG : VT_DOUBLE; +#else + if ((ft & VT_BTYPE) == VT_LLONG) { + int addr_type = VT_INT, load_size = 4, load_type = VT_INT; +#endif + vtop[-1].type.t = load_type; + store(r, vtop - 1); + vswap(); + /* convert to int to increment easily */ + vtop->type.t = addr_type; + gaddrof(); + vpushi(load_size); + gen_op('+'); + vtop->r |= VT_LVAL; + vswap(); + vtop[-1].type.t = load_type; + /* XXX: it works because r2 is spilled last ! */ + store(vtop->r2, vtop - 1); + } else { + store(r, vtop - 1); + } + } + vswap(); + vtop--; /* NOT vpop() because on x86 it would flush the fp stack */ + vtop->r |= delayed_cast; + } +} + +/* post defines POST/PRE add. c is the token ++ or -- */ +ST_FUNC void inc(int post, int c) +{ + test_lvalue(); + vdup(); /* save lvalue */ + if (post) { + if (!nocode_wanted) + gv_dup(); /* duplicate value */ + else + vdup(); /* duplicate value */ + vrotb(3); + vrotb(3); + } + /* add constant */ + vpushi(c - TOK_MID); + gen_op('+'); + vstore(); /* store value */ + if (post) + vpop(); /* if post op, return saved value */ +} + +/* Parse GNUC __attribute__ extension. Currently, the following + extensions are recognized: + - aligned(n) : set data/function alignment. + - packed : force data alignment to 1 + - section(x) : generate data/code in this section. + - unused : currently ignored, but may be used someday. + - regparm(n) : pass function parameters in registers (i386 only) + */ +static void parse_attribute(AttributeDef *ad) +{ + int t, n; + + while (tok == TOK_ATTRIBUTE1 || tok == TOK_ATTRIBUTE2) { + next(); + skip('('); + skip('('); + while (tok != ')') { + if (tok < TOK_IDENT) + expect("attribute name"); + t = tok; + next(); + switch(t) { + case TOK_SECTION1: + case TOK_SECTION2: + skip('('); + if (tok != TOK_STR) + expect("section name"); + ad->section = find_section(tcc_state, (char *)tokc.str.data); + next(); + skip(')'); + break; + case TOK_ALIAS1: + case TOK_ALIAS2: + skip('('); + if (tok != TOK_STR) + expect("alias(\"target\")"); + ad->alias_target = /* save string as token, for later */ + tok_alloc((char*)tokc.str.data, tokc.str.size-1)->tok; + next(); + skip(')'); + break; + case TOK_VISIBILITY1: + case TOK_VISIBILITY2: + skip('('); + if (tok != TOK_STR) + expect("visibility(\"default|hidden|internal|protected\")"); + if (!strcmp (tokc.str.data, "default")) + ad->a.visibility = STV_DEFAULT; + else if (!strcmp (tokc.str.data, "hidden")) + ad->a.visibility = STV_HIDDEN; + else if (!strcmp (tokc.str.data, "internal")) + ad->a.visibility = STV_INTERNAL; + else if (!strcmp (tokc.str.data, "protected")) + ad->a.visibility = STV_PROTECTED; + else + expect("visibility(\"default|hidden|internal|protected\")"); + next(); + skip(')'); + break; + case TOK_ALIGNED1: + case TOK_ALIGNED2: + if (tok == '(') { + next(); + n = expr_const(); + if (n <= 0 || (n & (n - 1)) != 0) + tcc_error("alignment must be a positive power of two"); + skip(')'); + } else { + n = MAX_ALIGN; + } + ad->a.aligned = n; + break; + case TOK_PACKED1: + case TOK_PACKED2: + ad->a.packed = 1; + break; + case TOK_WEAK1: + case TOK_WEAK2: + ad->a.weak = 1; + break; + case TOK_UNUSED1: + case TOK_UNUSED2: + /* currently, no need to handle it because tcc does not + track unused objects */ + break; + case TOK_NORETURN1: + case TOK_NORETURN2: + /* currently, no need to handle it because tcc does not + track unused objects */ + break; + case TOK_CDECL1: + case TOK_CDECL2: + case TOK_CDECL3: + ad->a.func_call = FUNC_CDECL; + break; + case TOK_STDCALL1: + case TOK_STDCALL2: + case TOK_STDCALL3: + ad->a.func_call = FUNC_STDCALL; + break; +#ifdef TCC_TARGET_I386 + case TOK_REGPARM1: + case TOK_REGPARM2: + skip('('); + n = expr_const(); + if (n > 3) + n = 3; + else if (n < 0) + n = 0; + if (n > 0) + ad->a.func_call = FUNC_FASTCALL1 + n - 1; + skip(')'); + break; + case TOK_FASTCALL1: + case TOK_FASTCALL2: + case TOK_FASTCALL3: + ad->a.func_call = FUNC_FASTCALLW; + break; +#endif + case TOK_MODE: + skip('('); + switch(tok) { + case TOK_MODE_DI: + ad->a.mode = VT_LLONG + 1; + break; + case TOK_MODE_HI: + ad->a.mode = VT_SHORT + 1; + break; + case TOK_MODE_SI: + ad->a.mode = VT_INT + 1; + break; + default: + tcc_warning("__mode__(%s) not supported\n", get_tok_str(tok, NULL)); + break; + } + next(); + skip(')'); + break; + case TOK_DLLEXPORT: + ad->a.func_export = 1; + break; + case TOK_DLLIMPORT: + ad->a.func_import = 1; + break; + default: + if (tcc_state->warn_unsupported) + tcc_warning("'%s' attribute ignored", get_tok_str(t, NULL)); + /* skip parameters */ + if (tok == '(') { + int parenthesis = 0; + do { + if (tok == '(') + parenthesis++; + else if (tok == ')') + parenthesis--; + next(); + } while (parenthesis && tok != -1); + } + break; + } + if (tok != ',') + break; + next(); + } + skip(')'); + skip(')'); + } +} + +/* enum/struct/union declaration. u is either VT_ENUM or VT_STRUCT */ +static void struct_decl(CType *type, int u) +{ + int a, v, size, align, maxalign, c, offset, flexible; + int bit_size, bit_pos, bsize, bt, lbit_pos, prevbt; + Sym *s, *ss, *ass, **ps; + AttributeDef ad; + CType type1, btype; + + a = tok; /* save decl type */ + next(); + if (tok != '{') { + v = tok; + next(); + /* struct already defined ? return it */ + if (v < TOK_IDENT) + expect("struct/union/enum name"); + s = struct_find(v); + if (s) { + if (s->type.t != a) + tcc_error("invalid type"); + goto do_decl; + } + } else { + v = anon_sym++; + } + type1.t = a; + type1.ref = NULL; + /* we put an undefined size for struct/union */ + s = sym_push(v | SYM_STRUCT, &type1, 0, -1); + s->r = 0; /* default alignment is zero as gcc */ + /* put struct/union/enum name in type */ + do_decl: + type->t = u; + type->ref = s; + + if (tok == '{') { + next(); + if (s->c != -1) + tcc_error("struct/union/enum already defined"); + /* cannot be empty */ + c = 0; + /* non empty enums are not allowed */ + if (a == TOK_ENUM) { + for(;;) { + v = tok; + if (v < TOK_UIDENT) + expect("identifier"); + ss = sym_find(v); + if (ss && !local_stack) + tcc_error("redefinition of enumerator '%s'", + get_tok_str(v, NULL)); + next(); + if (tok == '=') { + next(); + c = expr_const(); + } + /* enum symbols have static storage */ + ss = sym_push(v, &int_type, VT_CONST, c); + ss->type.t |= VT_STATIC; + if (tok != ',') + break; + next(); + c++; + /* NOTE: we accept a trailing comma */ + if (tok == '}') + break; + } + s->c = type_size(&int_type, &align); + skip('}'); + } else { + maxalign = 1; + ps = &s->next; + prevbt = VT_INT; + bit_pos = 0; + offset = 0; + flexible = 0; + while (tok != '}') { + parse_btype(&btype, &ad); + while (1) { + if (flexible) + tcc_error("flexible array member '%s' not at the end of struct", + get_tok_str(v, NULL)); + bit_size = -1; + v = 0; + type1 = btype; + if (tok != ':') { + type_decl(&type1, &ad, &v, TYPE_DIRECT | TYPE_ABSTRACT); + if (v == 0) { + if ((type1.t & VT_BTYPE) != VT_STRUCT) + expect("identifier"); + else { + int v = btype.ref->v; + if (!(v & SYM_FIELD) && (v & ~SYM_STRUCT) < SYM_FIRST_ANOM) { + if (tcc_state->ms_extensions == 0) + expect("identifier"); + } + } + } + if (type_size(&type1, &align) < 0) { + if ((a == TOK_STRUCT) && (type1.t & VT_ARRAY) && c) + flexible = 1; + else + tcc_error("field '%s' has incomplete type", + get_tok_str(v, NULL)); + } + if ((type1.t & VT_BTYPE) == VT_FUNC || + (type1.t & (VT_TYPEDEF | VT_STATIC | VT_EXTERN | VT_INLINE))) + tcc_error("invalid type for '%s'", + get_tok_str(v, NULL)); + } + if (tok == ':') { + next(); + bit_size = expr_const(); + /* XXX: handle v = 0 case for messages */ + if (bit_size < 0) + tcc_error("negative width in bit-field '%s'", + get_tok_str(v, NULL)); + if (v && bit_size == 0) + tcc_error("zero width for bit-field '%s'", + get_tok_str(v, NULL)); + } + size = type_size(&type1, &align); + if (ad.a.aligned) { + if (align < ad.a.aligned) + align = ad.a.aligned; + } else if (ad.a.packed) { + align = 1; + } else if (*tcc_state->pack_stack_ptr) { + if (align > *tcc_state->pack_stack_ptr) + align = *tcc_state->pack_stack_ptr; + } + lbit_pos = 0; + if (bit_size >= 0) { + bt = type1.t & VT_BTYPE; + if (bt != VT_INT && + bt != VT_BYTE && + bt != VT_SHORT && + bt != VT_BOOL && + bt != VT_ENUM && + bt != VT_LLONG) + tcc_error("bitfields must have scalar type"); + bsize = size * 8; + if (bit_size > bsize) { + tcc_error("width of '%s' exceeds its type", + get_tok_str(v, NULL)); + } else if (bit_size == bsize) { + /* no need for bit fields */ + bit_pos = 0; + } else if (bit_size == 0) { + /* XXX: what to do if only padding in a + structure ? */ + /* zero size: means to pad */ + bit_pos = 0; + } else { + /* we do not have enough room ? + did the type change? + is it a union? */ + if ((bit_pos + bit_size) > bsize || + bt != prevbt || a == TOK_UNION) + bit_pos = 0; + lbit_pos = bit_pos; + /* XXX: handle LSB first */ + type1.t |= VT_BITFIELD | + (bit_pos << VT_STRUCT_SHIFT) | + (bit_size << (VT_STRUCT_SHIFT + 6)); + bit_pos += bit_size; + } + prevbt = bt; + } else { + bit_pos = 0; + } + if (v != 0 || (type1.t & VT_BTYPE) == VT_STRUCT) { + /* add new memory data only if starting + bit field */ + if (lbit_pos == 0) { + if (a == TOK_STRUCT) { + c = (c + align - 1) & -align; + offset = c; + if (size > 0) + c += size; + } else { + offset = 0; + if (size > c) + c = size; + } + if (align > maxalign) + maxalign = align; + } +#if 0 + printf("add field %s offset=%d", + get_tok_str(v, NULL), offset); + if (type1.t & VT_BITFIELD) { + printf(" pos=%d size=%d", + (type1.t >> VT_STRUCT_SHIFT) & 0x3f, + (type1.t >> (VT_STRUCT_SHIFT + 6)) & 0x3f); + } + printf("\n"); +#endif + } + if (v == 0 && (type1.t & VT_BTYPE) == VT_STRUCT) { + ass = type1.ref; + while ((ass = ass->next) != NULL) { + ss = sym_push(ass->v, &ass->type, 0, offset + ass->c); + *ps = ss; + ps = &ss->next; + } + } else if (v) { + ss = sym_push(v | SYM_FIELD, &type1, 0, offset); + *ps = ss; + ps = &ss->next; + } + if (tok == ';' || tok == TOK_EOF) + break; + skip(','); + } + skip(';'); + } + skip('}'); + /* store size and alignment */ + s->c = (c + maxalign - 1) & -maxalign; + s->r = maxalign; + } + } +} + +/* return 1 if basic type is a type size (short, long, long long) */ +ST_FUNC int is_btype_size(int bt) +{ + return bt == VT_SHORT || bt == VT_LONG || bt == VT_LLONG; +} + +/* Add type qualifiers to a type. If the type is an array then the qualifiers + are added to the element type, copied because it could be a typedef. */ +static void parse_btype_qualify(CType *type, int qualifiers) +{ + while (type->t & VT_ARRAY) { + type->ref = sym_push(SYM_FIELD, &type->ref->type, 0, type->ref->c); + type = &type->ref->type; + } + type->t |= qualifiers; +} + +/* return 0 if no type declaration. otherwise, return the basic type + and skip it. + */ +static int parse_btype(CType *type, AttributeDef *ad) +{ + int t, u, bt_size, complete, type_found, typespec_found; + Sym *s; + CType type1; + + memset(ad, 0, sizeof(AttributeDef)); + complete = 0; + type_found = 0; + typespec_found = 0; + t = 0; + while(1) { + switch(tok) { + case TOK_EXTENSION: + /* currently, we really ignore extension */ + next(); + continue; + + /* basic types */ + case TOK_CHAR: + u = VT_BYTE; + basic_type: + next(); + basic_type1: + if (complete) + tcc_error("too many basic types"); + t |= u; + bt_size = is_btype_size (u & VT_BTYPE); + if (u == VT_INT || (!bt_size && !(t & VT_TYPEDEF))) + complete = 1; + typespec_found = 1; + break; + case TOK_VOID: + u = VT_VOID; + goto basic_type; + case TOK_SHORT: + u = VT_SHORT; + goto basic_type; + case TOK_INT: + u = VT_INT; + goto basic_type; + case TOK_LONG: + next(); + if ((t & VT_BTYPE) == VT_DOUBLE) { +#ifndef TCC_TARGET_PE + t = (t & ~VT_BTYPE) | VT_LDOUBLE; +#endif + } else if ((t & VT_BTYPE) == VT_LONG) { + t = (t & ~VT_BTYPE) | VT_LLONG; + } else { + u = VT_LONG; + goto basic_type1; + } + break; +#ifdef TCC_TARGET_ARM64 + case TOK_UINT128: + /* GCC's __uint128_t appears in some Linux header files. Make it a + synonym for long double to get the size and alignment right. */ + u = VT_LDOUBLE; + goto basic_type; +#endif + case TOK_BOOL: + u = VT_BOOL; + goto basic_type; + case TOK_FLOAT: + u = VT_FLOAT; + goto basic_type; + case TOK_DOUBLE: + next(); + if ((t & VT_BTYPE) == VT_LONG) { +#ifdef TCC_TARGET_PE + t = (t & ~VT_BTYPE) | VT_DOUBLE; +#else + t = (t & ~VT_BTYPE) | VT_LDOUBLE; +#endif + } else { + u = VT_DOUBLE; + goto basic_type1; + } + break; + case TOK_ENUM: + struct_decl(&type1, VT_ENUM); + basic_type2: + u = type1.t; + type->ref = type1.ref; + goto basic_type1; + case TOK_STRUCT: + case TOK_UNION: + struct_decl(&type1, VT_STRUCT); + goto basic_type2; + + /* type modifiers */ + case TOK_CONST1: + case TOK_CONST2: + case TOK_CONST3: + type->t = t; + parse_btype_qualify(type, VT_CONSTANT); + t = type->t; + next(); + break; + case TOK_VOLATILE1: + case TOK_VOLATILE2: + case TOK_VOLATILE3: + type->t = t; + parse_btype_qualify(type, VT_VOLATILE); + t = type->t; + next(); + break; + case TOK_SIGNED1: + case TOK_SIGNED2: + case TOK_SIGNED3: + if ((t & (VT_DEFSIGN|VT_UNSIGNED)) == (VT_DEFSIGN|VT_UNSIGNED)) + tcc_error("signed and unsigned modifier"); + typespec_found = 1; + t |= VT_DEFSIGN; + next(); + break; + case TOK_REGISTER: + case TOK_AUTO: + case TOK_RESTRICT1: + case TOK_RESTRICT2: + case TOK_RESTRICT3: + next(); + break; + case TOK_UNSIGNED: + if ((t & (VT_DEFSIGN|VT_UNSIGNED)) == VT_DEFSIGN) + tcc_error("signed and unsigned modifier"); + t |= VT_DEFSIGN | VT_UNSIGNED; + next(); + typespec_found = 1; + break; + + /* storage */ + case TOK_EXTERN: + t |= VT_EXTERN; + next(); + break; + case TOK_STATIC: + t |= VT_STATIC; + next(); + break; + case TOK_TYPEDEF: + t |= VT_TYPEDEF; + next(); + break; + case TOK_INLINE1: + case TOK_INLINE2: + case TOK_INLINE3: + t |= VT_INLINE; + next(); + break; + + /* GNUC attribute */ + case TOK_ATTRIBUTE1: + case TOK_ATTRIBUTE2: + parse_attribute(ad); + if (ad->a.mode) { + u = ad->a.mode -1; + t = (t & ~VT_BTYPE) | u; + } + break; + /* GNUC typeof */ + case TOK_TYPEOF1: + case TOK_TYPEOF2: + case TOK_TYPEOF3: + next(); + parse_expr_type(&type1); + /* remove all storage modifiers except typedef */ + type1.t &= ~(VT_STORAGE&~VT_TYPEDEF); + goto basic_type2; + default: + if (typespec_found) + goto the_end; + s = sym_find(tok); + if (!s || !(s->type.t & VT_TYPEDEF)) + goto the_end; + + type->t = ((s->type.t & ~VT_TYPEDEF) | + (t & ~(VT_CONSTANT | VT_VOLATILE))); + type->ref = s->type.ref; + if (t & (VT_CONSTANT | VT_VOLATILE)) + parse_btype_qualify(type, t & (VT_CONSTANT | VT_VOLATILE)); + t = type->t; + + if (s->r) { + /* get attributes from typedef */ + if (0 == ad->a.aligned) + ad->a.aligned = s->a.aligned; + if (0 == ad->a.func_call) + ad->a.func_call = s->a.func_call; + ad->a.packed |= s->a.packed; + } + next(); + typespec_found = 1; + break; + } + type_found = 1; + } +the_end: + if (tcc_state->char_is_unsigned) { + if ((t & (VT_DEFSIGN|VT_BTYPE)) == VT_BYTE) + t |= VT_UNSIGNED; + } + + /* long is never used as type */ + if ((t & VT_BTYPE) == VT_LONG) +#if (!defined TCC_TARGET_X86_64 && !defined TCC_TARGET_ARM64) || \ + defined TCC_TARGET_PE + t = (t & ~VT_BTYPE) | VT_INT; +#else + t = (t & ~VT_BTYPE) | VT_LLONG; +#endif + type->t = t; + return type_found; +} + +/* convert a function parameter type (array to pointer and function to + function pointer) */ +static inline void convert_parameter_type(CType *pt) +{ + /* remove const and volatile qualifiers (XXX: const could be used + to indicate a const function parameter */ + pt->t &= ~(VT_CONSTANT | VT_VOLATILE); + /* array must be transformed to pointer according to ANSI C */ + pt->t &= ~VT_ARRAY; + if ((pt->t & VT_BTYPE) == VT_FUNC) { + mk_pointer(pt); + } +} + +ST_FUNC void parse_asm_str(CString *astr) +{ + skip('('); + /* read the string */ + if (tok != TOK_STR) + expect("string constant"); + cstr_new(astr); + while (tok == TOK_STR) { + /* XXX: add \0 handling too ? */ + cstr_cat(astr, tokc.str.data); + next(); + } + cstr_ccat(astr, '\0'); +} + +/* Parse an asm label and return the token */ +static int asm_label_instr(void) +{ + int v; + CString astr; + + next(); + parse_asm_str(&astr); + skip(')'); +#ifdef ASM_DEBUG + printf("asm_alias: \"%s\"\n", (char *)astr.data); +#endif + v = tok_alloc(astr.data, astr.size - 1)->tok; + cstr_free(&astr); + return v; +} + +static void post_type(CType *type, AttributeDef *ad) +{ + int n, l, t1, arg_size, align; + Sym **plast, *s, *first; + AttributeDef ad1; + CType pt; + + if (tok == '(') { + /* function declaration */ + next(); + l = 0; + first = NULL; + plast = &first; + arg_size = 0; + if (tok != ')') { + for(;;) { + /* read param name and compute offset */ + if (l != FUNC_OLD) { + if (!parse_btype(&pt, &ad1)) { + if (l) { + tcc_error("invalid type"); + } else { + l = FUNC_OLD; + goto old_proto; + } + } + l = FUNC_NEW; + if ((pt.t & VT_BTYPE) == VT_VOID && tok == ')') + break; + type_decl(&pt, &ad1, &n, TYPE_DIRECT | TYPE_ABSTRACT); + if ((pt.t & VT_BTYPE) == VT_VOID) + tcc_error("parameter declared as void"); + arg_size += (type_size(&pt, &align) + PTR_SIZE - 1) / PTR_SIZE; + } else { + old_proto: + n = tok; + if (n < TOK_UIDENT) + expect("identifier"); + pt.t = VT_INT; + next(); + } + convert_parameter_type(&pt); + s = sym_push(n | SYM_FIELD, &pt, 0, 0); + *plast = s; + plast = &s->next; + if (tok == ')') + break; + skip(','); + if (l == FUNC_NEW && tok == TOK_DOTS) { + l = FUNC_ELLIPSIS; + next(); + break; + } + } + } + /* if no parameters, then old type prototype */ + if (l == 0) + l = FUNC_OLD; + skip(')'); + /* NOTE: const is ignored in returned type as it has a special + meaning in gcc / C++ */ + type->t &= ~VT_CONSTANT; + /* some ancient pre-K&R C allows a function to return an array + and the array brackets to be put after the arguments, such + that "int c()[]" means something like "int[] c()" */ + if (tok == '[') { + next(); + skip(']'); /* only handle simple "[]" */ + type->t |= VT_PTR; + } + /* we push a anonymous symbol which will contain the function prototype */ + ad->a.func_args = arg_size; + s = sym_push(SYM_FIELD, type, 0, l); + s->a = ad->a; + s->next = first; + type->t = VT_FUNC; + type->ref = s; + } else if (tok == '[') { + /* array definition */ + next(); + if (tok == TOK_RESTRICT1) + next(); + n = -1; + t1 = 0; + if (tok != ']') { + if (!local_stack || nocode_wanted) + vpushi(expr_const()); + else gexpr(); + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { + n = vtop->c.i; + if (n < 0) + tcc_error("invalid array size"); + } else { + if (!is_integer_btype(vtop->type.t & VT_BTYPE)) + tcc_error("size of variable length array should be an integer"); + t1 = VT_VLA; + } + } + skip(']'); + /* parse next post type */ + post_type(type, ad); + if (type->t == VT_FUNC) + tcc_error("declaration of an array of functions"); + t1 |= type->t & VT_VLA; + + if (t1 & VT_VLA) { + loc -= type_size(&int_type, &align); + loc &= -align; + n = loc; + + vla_runtime_type_size(type, &align); + gen_op('*'); + vset(&int_type, VT_LOCAL|VT_LVAL, n); + vswap(); + vstore(); + } + if (n != -1) + vpop(); + + /* we push an anonymous symbol which will contain the array + element type */ + s = sym_push(SYM_FIELD, type, 0, n); + type->t = (t1 ? VT_VLA : VT_ARRAY) | VT_PTR; + type->ref = s; + } +} + +/* Parse a type declaration (except basic type), and return the type + in 'type'. 'td' is a bitmask indicating which kind of type decl is + expected. 'type' should contain the basic type. 'ad' is the + attribute definition of the basic type. It can be modified by + type_decl(). + */ +static void type_decl(CType *type, AttributeDef *ad, int *v, int td) +{ + Sym *s; + CType type1, *type2; + int qualifiers, storage; + + while (tok == '*') { + qualifiers = 0; + redo: + next(); + switch(tok) { + case TOK_CONST1: + case TOK_CONST2: + case TOK_CONST3: + qualifiers |= VT_CONSTANT; + goto redo; + case TOK_VOLATILE1: + case TOK_VOLATILE2: + case TOK_VOLATILE3: + qualifiers |= VT_VOLATILE; + goto redo; + case TOK_RESTRICT1: + case TOK_RESTRICT2: + case TOK_RESTRICT3: + goto redo; + } + mk_pointer(type); + type->t |= qualifiers; + } + + /* XXX: clarify attribute handling */ + if (tok == TOK_ATTRIBUTE1 || tok == TOK_ATTRIBUTE2) + parse_attribute(ad); + + /* recursive type */ + /* XXX: incorrect if abstract type for functions (e.g. 'int ()') */ + type1.t = 0; /* XXX: same as int */ + if (tok == '(') { + next(); + /* XXX: this is not correct to modify 'ad' at this point, but + the syntax is not clear */ + if (tok == TOK_ATTRIBUTE1 || tok == TOK_ATTRIBUTE2) + parse_attribute(ad); + type_decl(&type1, ad, v, td); + skip(')'); + } else { + /* type identifier */ + if (tok >= TOK_IDENT && (td & TYPE_DIRECT)) { + *v = tok; + next(); + } else { + if (!(td & TYPE_ABSTRACT)) + expect("identifier"); + *v = 0; + } + } + storage = type->t & VT_STORAGE; + type->t &= ~VT_STORAGE; + if (storage & VT_STATIC) { + int saved_nocode_wanted = nocode_wanted; + nocode_wanted = 1; + post_type(type, ad); + nocode_wanted = saved_nocode_wanted; + } else + post_type(type, ad); + type->t |= storage; + if (tok == TOK_ATTRIBUTE1 || tok == TOK_ATTRIBUTE2) + parse_attribute(ad); + + if (!type1.t) + return; + /* append type at the end of type1 */ + type2 = &type1; + for(;;) { + s = type2->ref; + type2 = &s->type; + if (!type2->t) { + *type2 = *type; + break; + } + } + *type = type1; +} + +/* compute the lvalue VT_LVAL_xxx needed to match type t. */ +ST_FUNC int lvalue_type(int t) +{ + int bt, r; + r = VT_LVAL; + bt = t & VT_BTYPE; + if (bt == VT_BYTE || bt == VT_BOOL) + r |= VT_LVAL_BYTE; + else if (bt == VT_SHORT) + r |= VT_LVAL_SHORT; + else + return r; + if (t & VT_UNSIGNED) + r |= VT_LVAL_UNSIGNED; + return r; +} + +/* indirection with full error checking and bound check */ +ST_FUNC void indir(void) +{ + if ((vtop->type.t & VT_BTYPE) != VT_PTR) { + if ((vtop->type.t & VT_BTYPE) == VT_FUNC) + return; + expect("pointer"); + } + if ((vtop->r & VT_LVAL) && !nocode_wanted) + gv(RC_INT); + vtop->type = *pointed_type(&vtop->type); + /* Arrays and functions are never lvalues */ + if (!(vtop->type.t & VT_ARRAY) && !(vtop->type.t & VT_VLA) + && (vtop->type.t & VT_BTYPE) != VT_FUNC) { + vtop->r |= lvalue_type(vtop->type.t); + /* if bound checking, the referenced pointer must be checked */ +#ifdef CONFIG_TCC_BCHECK + if (tcc_state->do_bounds_check) + vtop->r |= VT_MUSTBOUND; +#endif + } +} + +/* pass a parameter to a function and do type checking and casting */ +static void gfunc_param_typed(Sym *func, Sym *arg) +{ + int func_type; + CType type; + + func_type = func->c; + if (func_type == FUNC_OLD || + (func_type == FUNC_ELLIPSIS && arg == NULL)) { + /* default casting : only need to convert float to double */ + if ((vtop->type.t & VT_BTYPE) == VT_FLOAT) { + type.t = VT_DOUBLE; + gen_cast(&type); + } else if (vtop->type.t & VT_BITFIELD) { + type.t = vtop->type.t & (VT_BTYPE | VT_UNSIGNED); + gen_cast(&type); + } + } else if (arg == NULL) { + tcc_error("too many arguments to function"); + } else { + type = arg->type; + type.t &= ~VT_CONSTANT; /* need to do that to avoid false warning */ + gen_assign_cast(&type); + } +} + +/* parse an expression of the form '(type)' or '(expr)' and return its + type */ +static void parse_expr_type(CType *type) +{ + int n; + AttributeDef ad; + + skip('('); + if (parse_btype(type, &ad)) { + type_decl(type, &ad, &n, TYPE_ABSTRACT); + } else { + expr_type(type); + } + skip(')'); +} + +static void parse_type(CType *type) +{ + AttributeDef ad; + int n; + + if (!parse_btype(type, &ad)) { + expect("type"); + } + type_decl(type, &ad, &n, TYPE_ABSTRACT); +} + +static void vpush_tokc(int t) +{ + CType type; + type.t = t; + type.ref = 0; + vsetc(&type, VT_CONST, &tokc); +} + +ST_FUNC void unary(void) +{ + int n, t, align, size, r, sizeof_caller; + CType type; + Sym *s; + AttributeDef ad; + static int in_sizeof = 0; + + sizeof_caller = in_sizeof; + in_sizeof = 0; + /* XXX: GCC 2.95.3 does not generate a table although it should be + better here */ + tok_next: + switch(tok) { + case TOK_EXTENSION: + next(); + goto tok_next; + case TOK_CINT: + case TOK_CCHAR: + case TOK_LCHAR: + vpushi(tokc.i); + next(); + break; + case TOK_CUINT: + vpush_tokc(VT_INT | VT_UNSIGNED); + next(); + break; + case TOK_CLLONG: + vpush_tokc(VT_LLONG); + next(); + break; + case TOK_CULLONG: + vpush_tokc(VT_LLONG | VT_UNSIGNED); + next(); + break; + case TOK_CFLOAT: + vpush_tokc(VT_FLOAT); + next(); + break; + case TOK_CDOUBLE: + vpush_tokc(VT_DOUBLE); + next(); + break; + case TOK_CLDOUBLE: + vpush_tokc(VT_LDOUBLE); + next(); + break; + case TOK___FUNCTION__: + if (!gnu_ext) + goto tok_identifier; + /* fall thru */ + case TOK___FUNC__: + { + void *ptr; + int len; + /* special function name identifier */ + len = strlen(funcname) + 1; + /* generate char[len] type */ + type.t = VT_BYTE; + mk_pointer(&type); + type.t |= VT_ARRAY; + type.ref->c = len; + vpush_ref(&type, data_section, data_section->data_offset, len); + ptr = section_ptr_add(data_section, len); + memcpy(ptr, funcname, len); + next(); + } + break; + case TOK_LSTR: +#ifdef TCC_TARGET_PE + t = VT_SHORT | VT_UNSIGNED; +#else + t = VT_INT; +#endif + goto str_init; + case TOK_STR: + /* string parsing */ + t = VT_BYTE; + str_init: + if (tcc_state->warn_write_strings) + t |= VT_CONSTANT; + type.t = t; + mk_pointer(&type); + type.t |= VT_ARRAY; + memset(&ad, 0, sizeof(AttributeDef)); + decl_initializer_alloc(&type, &ad, VT_CONST, 2, 0, 0); + break; + case '(': + next(); + /* cast ? */ + if (parse_btype(&type, &ad)) { + type_decl(&type, &ad, &n, TYPE_ABSTRACT); + skip(')'); + /* check ISOC99 compound literal */ + if (tok == '{') { + /* data is allocated locally by default */ + if (global_expr) + r = VT_CONST; + else + r = VT_LOCAL; + /* all except arrays are lvalues */ + if (!(type.t & VT_ARRAY)) + r |= lvalue_type(type.t); + memset(&ad, 0, sizeof(AttributeDef)); + decl_initializer_alloc(&type, &ad, r, 1, 0, 0); + } else { + if (sizeof_caller) { + vpush(&type); + return; + } + unary(); + gen_cast(&type); + } + } else if (tok == '{') { + if (const_wanted) + tcc_error("expected constant"); + /* save all registers */ + save_regs(0); + /* statement expression : we do not accept break/continue + inside as GCC does */ + block(NULL, NULL, NULL, NULL, 0, 1); + skip(')'); + } else { + gexpr(); + skip(')'); + } + break; + case '*': + next(); + unary(); + indir(); + break; + case '&': + next(); + unary(); + /* functions names must be treated as function pointers, + except for unary '&' and sizeof. Since we consider that + functions are not lvalues, we only have to handle it + there and in function calls. */ + /* arrays can also be used although they are not lvalues */ + if ((vtop->type.t & VT_BTYPE) != VT_FUNC && + !(vtop->type.t & VT_ARRAY) && !(vtop->type.t & VT_LLOCAL)) + test_lvalue(); + mk_pointer(&vtop->type); + gaddrof(); + break; + case '!': + next(); + unary(); + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { + CType boolean; + boolean.t = VT_BOOL; + gen_cast(&boolean); + vtop->c.i = !vtop->c.i; + } else if ((vtop->r & VT_VALMASK) == VT_CMP) + vtop->c.i ^= 1; + else { + save_regs(1); + vseti(VT_JMP, gvtst(1, 0)); + } + break; + case '~': + next(); + unary(); + vpushi(-1); + gen_op('^'); + break; + case '+': + next(); + unary(); + if ((vtop->type.t & VT_BTYPE) == VT_PTR) + tcc_error("pointer not accepted for unary plus"); + /* In order to force cast, we add zero, except for floating point + where we really need an noop (otherwise -0.0 will be transformed + into +0.0). */ + if (!is_float(vtop->type.t)) { + vpushi(0); + gen_op('+'); + } + break; + case TOK_SIZEOF: + case TOK_ALIGNOF1: + case TOK_ALIGNOF2: + t = tok; + next(); + in_sizeof++; + unary_type(&type); // Perform a in_sizeof = 0; + size = type_size(&type, &align); + if (t == TOK_SIZEOF) { + if (!(type.t & VT_VLA)) { + if (size < 0) + tcc_error("sizeof applied to an incomplete type"); + vpushs(size); + } else { + vla_runtime_type_size(&type, &align); + } + } else { + vpushs(align); + } + vtop->type.t |= VT_UNSIGNED; + break; + + case TOK_builtin_types_compatible_p: + { + CType type1, type2; + next(); + skip('('); + parse_type(&type1); + skip(','); + parse_type(&type2); + skip(')'); + type1.t &= ~(VT_CONSTANT | VT_VOLATILE); + type2.t &= ~(VT_CONSTANT | VT_VOLATILE); + vpushi(is_compatible_types(&type1, &type2)); + } + break; + case TOK_builtin_constant_p: + { + int saved_nocode_wanted, res; + next(); + skip('('); + saved_nocode_wanted = nocode_wanted; + nocode_wanted = 1; + gexpr(); + res = (vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST; + vpop(); + nocode_wanted = saved_nocode_wanted; + skip(')'); + vpushi(res); + } + break; + case TOK_builtin_frame_address: + case TOK_builtin_return_address: + { + int tok1 = tok; + int level; + CType type; + next(); + skip('('); + if (tok != TOK_CINT) { + tcc_error("%s only takes positive integers", + tok1 == TOK_builtin_return_address ? + "__builtin_return_address" : + "__builtin_frame_address"); + } + level = (uint32_t)tokc.i; + next(); + skip(')'); + type.t = VT_VOID; + mk_pointer(&type); + vset(&type, VT_LOCAL, 0); /* local frame */ + while (level--) { + mk_pointer(&vtop->type); + indir(); /* -> parent frame */ + } + if (tok1 == TOK_builtin_return_address) { + // assume return address is just above frame pointer on stack + vpushi(PTR_SIZE); + gen_op('+'); + mk_pointer(&vtop->type); + indir(); + } + } + break; +#ifdef TCC_TARGET_X86_64 +#ifdef TCC_TARGET_PE + case TOK_builtin_va_start: + { + next(); + skip('('); + expr_eq(); + skip(','); + expr_eq(); + skip(')'); + if ((vtop->r & VT_VALMASK) != VT_LOCAL) + tcc_error("__builtin_va_start expects a local variable"); + vtop->r &= ~(VT_LVAL | VT_REF); + vtop->type = char_pointer_type; + vstore(); + } + break; +#else + case TOK_builtin_va_arg_types: + { + CType type; + next(); + skip('('); + parse_type(&type); + skip(')'); + vpushi(classify_x86_64_va_arg(&type)); + } + break; +#endif +#endif + +#ifdef TCC_TARGET_ARM64 + case TOK___va_start: { + if (nocode_wanted) + tcc_error("statement in global scope"); + next(); + skip('('); + expr_eq(); + skip(','); + expr_eq(); + skip(')'); + //xx check types + gen_va_start(); + vpushi(0); + vtop->type.t = VT_VOID; + break; + } + case TOK___va_arg: { + CType type; + if (nocode_wanted) + tcc_error("statement in global scope"); + next(); + skip('('); + expr_eq(); + skip(','); + parse_type(&type); + skip(')'); + //xx check types + gen_va_arg(&type); + vtop->type = type; + break; + } + case TOK___arm64_clear_cache: { + next(); + skip('('); + expr_eq(); + skip(','); + expr_eq(); + skip(')'); + gen_clear_cache(); + vpushi(0); + vtop->type.t = VT_VOID; + break; + } +#endif + /* pre operations */ + case TOK_INC: + case TOK_DEC: + t = tok; + next(); + unary(); + inc(0, t); + break; + case '-': + next(); + unary(); + t = vtop->type.t & VT_BTYPE; + if (is_float(t)) { + /* In IEEE negate(x) isn't subtract(0,x), but rather + subtract(-0, x). */ + vpush(&vtop->type); + if (t == VT_FLOAT) + vtop->c.f = -0.0f; + else if (t == VT_DOUBLE) + vtop->c.d = -0.0; + else + vtop->c.ld = -0.0; + } else + vpushi(0); + vswap(); + gen_op('-'); + break; + case TOK_LAND: + if (!gnu_ext) + goto tok_identifier; + next(); + /* allow to take the address of a label */ + if (tok < TOK_UIDENT) + expect("label identifier"); + s = label_find(tok); + if (!s) { + s = label_push(&global_label_stack, tok, LABEL_FORWARD); + } else { + if (s->r == LABEL_DECLARED) + s->r = LABEL_FORWARD; + } + if (!s->type.t) { + s->type.t = VT_VOID; + mk_pointer(&s->type); + s->type.t |= VT_STATIC; + } + vpushsym(&s->type, s); + next(); + break; + + // special qnan , snan and infinity values + case TOK___NAN__: + vpush64(VT_DOUBLE, 0x7ff8000000000000ULL); + next(); + break; + case TOK___SNAN__: + vpush64(VT_DOUBLE, 0x7ff0000000000001ULL); + next(); + break; + case TOK___INF__: + vpush64(VT_DOUBLE, 0x7ff0000000000000ULL); + next(); + break; + + default: + tok_identifier: + t = tok; + next(); + if (t < TOK_UIDENT) + expect("identifier"); + s = sym_find(t); + if (!s) { + const char *name = get_tok_str(t, NULL); + if (tok != '(') + tcc_error("'%s' undeclared", name); + /* for simple function calls, we tolerate undeclared + external reference to int() function */ + if (tcc_state->warn_implicit_function_declaration +#ifdef TCC_TARGET_PE + /* people must be warned about using undeclared WINAPI functions + (which usually start with uppercase letter) */ + || (name[0] >= 'A' && name[0] <= 'Z') +#endif + ) + tcc_warning("implicit declaration of function '%s'", name); + s = external_global_sym(t, &func_old_type, 0); + } + if ((s->type.t & (VT_STATIC | VT_INLINE | VT_BTYPE)) == + (VT_STATIC | VT_INLINE | VT_FUNC)) { + /* if referencing an inline function, then we generate a + symbol to it if not already done. It will have the + effect to generate code for it at the end of the + compilation unit. Inline function as always + generated in the text section. */ + if (!s->c) + put_extern_sym(s, text_section, 0, 0); + r = VT_SYM | VT_CONST; + } else { + r = s->r; + } + vset(&s->type, r, s->c); + /* if forward reference, we must point to s */ + if (vtop->r & VT_SYM) { + vtop->sym = s; + vtop->c.i = 0; + } + break; + } + + /* post operations */ + while (1) { + if (tok == TOK_INC || tok == TOK_DEC) { + inc(1, tok); + next(); + } else if (tok == '.' || tok == TOK_ARROW || tok == TOK_CDOUBLE) { + int qualifiers; + /* field */ + if (tok == TOK_ARROW) + indir(); + qualifiers = vtop->type.t & (VT_CONSTANT | VT_VOLATILE); + test_lvalue(); + gaddrof(); + /* expect pointer on structure */ + if ((vtop->type.t & VT_BTYPE) != VT_STRUCT) + expect("struct or union"); + if (tok == TOK_CDOUBLE) + expect("field name"); + next(); + if (tok == TOK_CINT || tok == TOK_CUINT) + expect("field name"); + s = vtop->type.ref; + /* find field */ + tok |= SYM_FIELD; + while ((s = s->next) != NULL) { + if (s->v == tok) + break; + } + if (!s) + tcc_error("field not found: %s", get_tok_str(tok & ~SYM_FIELD, &tokc)); + /* add field offset to pointer */ + vtop->type = char_pointer_type; /* change type to 'char *' */ + vpushi(s->c); + gen_op('+'); + /* change type to field type, and set to lvalue */ + vtop->type = s->type; + vtop->type.t |= qualifiers; + /* an array is never an lvalue */ + if (!(vtop->type.t & VT_ARRAY)) { + vtop->r |= lvalue_type(vtop->type.t); +#ifdef CONFIG_TCC_BCHECK + /* if bound checking, the referenced pointer must be checked */ + if (tcc_state->do_bounds_check) + vtop->r |= VT_MUSTBOUND; +#endif + } + next(); + } else if (tok == '[') { + next(); + gexpr(); + gen_op('+'); + indir(); + skip(']'); + } else if (tok == '(') { + SValue ret; + Sym *sa; + int nb_args, ret_nregs, ret_align, regsize, variadic; + + /* function call */ + if ((vtop->type.t & VT_BTYPE) != VT_FUNC) { + /* pointer test (no array accepted) */ + if ((vtop->type.t & (VT_BTYPE | VT_ARRAY)) == VT_PTR) { + vtop->type = *pointed_type(&vtop->type); + if ((vtop->type.t & VT_BTYPE) != VT_FUNC) + goto error_func; + } else { + error_func: + expect("function pointer"); + } + } else { + vtop->r &= ~VT_LVAL; /* no lvalue */ + } + /* get return type */ + s = vtop->type.ref; + next(); + sa = s->next; /* first parameter */ + nb_args = 0; + ret.r2 = VT_CONST; + /* compute first implicit argument if a structure is returned */ + if ((s->type.t & VT_BTYPE) == VT_STRUCT) { + variadic = (s->c == FUNC_ELLIPSIS); + ret_nregs = gfunc_sret(&s->type, variadic, &ret.type, + &ret_align, ®size); + if (!ret_nregs) { + /* get some space for the returned structure */ + size = type_size(&s->type, &align); +#ifdef TCC_TARGET_ARM64 + /* On arm64, a small struct is return in registers. + It is much easier to write it to memory if we know + that we are allowed to write some extra bytes, so + round the allocated space up to a power of 2: */ + if (size < 16) + while (size & (size - 1)) + size = (size | (size - 1)) + 1; +#endif + loc = (loc - size) & -align; + ret.type = s->type; + ret.r = VT_LOCAL | VT_LVAL; + /* pass it as 'int' to avoid structure arg passing + problems */ + vseti(VT_LOCAL, loc); + ret.c = vtop->c; + nb_args++; + } + } else { + ret_nregs = 1; + ret.type = s->type; + } + + if (ret_nregs) { + /* return in register */ + if (is_float(ret.type.t)) { + ret.r = reg_fret(ret.type.t); +#ifdef TCC_TARGET_X86_64 + if ((ret.type.t & VT_BTYPE) == VT_QFLOAT) + ret.r2 = REG_QRET; +#endif + } else { +#ifndef TCC_TARGET_ARM64 +#ifdef TCC_TARGET_X86_64 + if ((ret.type.t & VT_BTYPE) == VT_QLONG) +#else + if ((ret.type.t & VT_BTYPE) == VT_LLONG) +#endif + ret.r2 = REG_LRET; +#endif + ret.r = REG_IRET; + } + ret.c.i = 0; + } + if (tok != ')') { + for(;;) { + expr_eq(); + gfunc_param_typed(s, sa); + nb_args++; + if (sa) + sa = sa->next; + if (tok == ')') + break; + skip(','); + } + } + if (sa) + tcc_error("too few arguments to function"); + skip(')'); + if (!nocode_wanted) { + gfunc_call(nb_args); + } else { + vtop -= (nb_args + 1); + } + + /* return value */ + for (r = ret.r + ret_nregs + !ret_nregs; r-- > ret.r;) { + vsetc(&ret.type, r, &ret.c); + vtop->r2 = ret.r2; /* Loop only happens when r2 is VT_CONST */ + } + + /* handle packed struct return */ + if (((s->type.t & VT_BTYPE) == VT_STRUCT) && ret_nregs) { + int addr, offset; + + size = type_size(&s->type, &align); + /* We're writing whole regs often, make sure there's enough + space. Assume register size is power of 2. */ + if (regsize > align) + align = regsize; + loc = (loc - size) & -align; + addr = loc; + offset = 0; + for (;;) { + vset(&ret.type, VT_LOCAL | VT_LVAL, addr + offset); + vswap(); + vstore(); + vtop--; + if (--ret_nregs == 0) + break; + offset += regsize; + } + vset(&s->type, VT_LOCAL | VT_LVAL, addr); + } + } else { + break; + } + } +} + +ST_FUNC void expr_prod(void) +{ + int t; + + unary(); + while (tok == '*' || tok == '/' || tok == '%') { + t = tok; + next(); + unary(); + gen_op(t); + } +} + +ST_FUNC void expr_sum(void) +{ + int t; + + expr_prod(); + while (tok == '+' || tok == '-') { + t = tok; + next(); + expr_prod(); + gen_op(t); + } +} + +static void expr_shift(void) +{ + int t; + + expr_sum(); + while (tok == TOK_SHL || tok == TOK_SAR) { + t = tok; + next(); + expr_sum(); + gen_op(t); + } +} + +static void expr_cmp(void) +{ + int t; + + expr_shift(); + while ((tok >= TOK_ULE && tok <= TOK_GT) || + tok == TOK_ULT || tok == TOK_UGE) { + t = tok; + next(); + expr_shift(); + gen_op(t); + } +} + +static void expr_cmpeq(void) +{ + int t; + + expr_cmp(); + while (tok == TOK_EQ || tok == TOK_NE) { + t = tok; + next(); + expr_cmp(); + gen_op(t); + } +} + +static void expr_and(void) +{ + expr_cmpeq(); + while (tok == '&') { + next(); + expr_cmpeq(); + gen_op('&'); + } +} + +static void expr_xor(void) +{ + expr_and(); + while (tok == '^') { + next(); + expr_and(); + gen_op('^'); + } +} + +static void expr_or(void) +{ + expr_xor(); + while (tok == '|') { + next(); + expr_xor(); + gen_op('|'); + } +} + +static void expr_land(void) +{ + expr_or(); + if (tok == TOK_LAND) { + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { + CType ctb, cti; + ctb.t = VT_BOOL; + cti.t = VT_INT; + next(); + gen_cast(&ctb); + if (vtop->c.i) { + vpop(); + expr_land(); + gen_cast(&ctb); + } else { + int saved_nocode_wanted = nocode_wanted; + nocode_wanted = 1; + expr_land(); + vpop(); + nocode_wanted = saved_nocode_wanted; + } + gen_cast(&cti); + } else { + int t = 0; + save_regs(1); + for(;;) { + t = gvtst(1, t); + if (tok != TOK_LAND) { + vseti(VT_JMPI, t); + break; + } + next(); + expr_or(); + } + } + } +} + +static void expr_lor(void) +{ + expr_land(); + if (tok == TOK_LOR) { + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { + CType ctb, cti; + ctb.t = VT_BOOL; + cti.t = VT_INT; + next(); + gen_cast(&ctb); + if (vtop->c.i) { + int saved_nocode_wanted = nocode_wanted; + nocode_wanted = 1; + expr_lor(); + vpop(); + nocode_wanted = saved_nocode_wanted; + } else { + vpop(); + expr_lor(); + gen_cast(&ctb); + } + gen_cast(&cti); + } else { + int t = 0; + save_regs(1); + for(;;) { + t = gvtst(0, t); + if (tok != TOK_LOR) { + vseti(VT_JMP, t); + break; + } + next(); + expr_land(); + } + } + } +} + +static void expr_cond(void) +{ + int tt, u, r1, r2, rc, t1, t2, bt1, bt2, islv; + SValue sv; + CType type, type1, type2; + + expr_lor(); + if (tok == '?') { + next(); + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { + int saved_nocode_wanted = nocode_wanted; + CType boolean; + int c; + boolean.t = VT_BOOL; + vdup(); + gen_cast(&boolean); + c = vtop->c.i; + vpop(); + if (c) { + if (tok != ':' || !gnu_ext) { + vpop(); + gexpr(); + } + skip(':'); + nocode_wanted = 1; + expr_cond(); + vpop(); + nocode_wanted = saved_nocode_wanted; + } else { + vpop(); + if (tok != ':' || !gnu_ext) { + nocode_wanted = 1; + gexpr(); + vpop(); + nocode_wanted = saved_nocode_wanted; + } + skip(':'); + expr_cond(); + } + } + else { + if (vtop != vstack) { + /* needed to avoid having different registers saved in + each branch */ + if (is_float(vtop->type.t)) { + rc = RC_FLOAT; +#ifdef TCC_TARGET_X86_64 + if ((vtop->type.t & VT_BTYPE) == VT_LDOUBLE) { + rc = RC_ST0; + } +#endif + } + else + rc = RC_INT; + gv(rc); + save_regs(1); + } + if (tok == ':' && gnu_ext) { + gv_dup(); + tt = gvtst(1, 0); + } else { + tt = gvtst(1, 0); + gexpr(); + } + type1 = vtop->type; + sv = *vtop; /* save value to handle it later */ + vtop--; /* no vpop so that FP stack is not flushed */ + skip(':'); + u = gjmp(0); + gsym(tt); + expr_cond(); + type2 = vtop->type; + + t1 = type1.t; + bt1 = t1 & VT_BTYPE; + t2 = type2.t; + bt2 = t2 & VT_BTYPE; + /* cast operands to correct type according to ISOC rules */ + if (is_float(bt1) || is_float(bt2)) { + if (bt1 == VT_LDOUBLE || bt2 == VT_LDOUBLE) { + type.t = VT_LDOUBLE; + } else if (bt1 == VT_DOUBLE || bt2 == VT_DOUBLE) { + type.t = VT_DOUBLE; + } else { + type.t = VT_FLOAT; + } + } else if (bt1 == VT_LLONG || bt2 == VT_LLONG) { + /* cast to biggest op */ + type.t = VT_LLONG; + /* convert to unsigned if it does not fit in a long long */ + if ((t1 & (VT_BTYPE | VT_UNSIGNED)) == (VT_LLONG | VT_UNSIGNED) || + (t2 & (VT_BTYPE | VT_UNSIGNED)) == (VT_LLONG | VT_UNSIGNED)) + type.t |= VT_UNSIGNED; + } else if (bt1 == VT_PTR || bt2 == VT_PTR) { + /* If one is a null ptr constant the result type + is the other. */ + if (is_null_pointer (vtop)) + type = type1; + else if (is_null_pointer (&sv)) + type = type2; + /* XXX: test pointer compatibility, C99 has more elaborate + rules here. */ + else + type = type1; + } else if (bt1 == VT_FUNC || bt2 == VT_FUNC) { + /* XXX: test function pointer compatibility */ + type = bt1 == VT_FUNC ? type1 : type2; + } else if (bt1 == VT_STRUCT || bt2 == VT_STRUCT) { + /* XXX: test structure compatibility */ + type = bt1 == VT_STRUCT ? type1 : type2; + } else if (bt1 == VT_VOID || bt2 == VT_VOID) { + /* NOTE: as an extension, we accept void on only one side */ + type.t = VT_VOID; + } else { + /* integer operations */ + type.t = VT_INT; + /* convert to unsigned if it does not fit in an integer */ + if ((t1 & (VT_BTYPE | VT_UNSIGNED)) == (VT_INT | VT_UNSIGNED) || + (t2 & (VT_BTYPE | VT_UNSIGNED)) == (VT_INT | VT_UNSIGNED)) + type.t |= VT_UNSIGNED; + } + /* keep structs lvalue by transforming `(expr ? a : b)` to `*(expr ? &a : &b)` so + that `(expr ? a : b).mem` does not error with "lvalue expected" */ + islv = (vtop->r & VT_LVAL) && (sv.r & VT_LVAL) && VT_STRUCT == (type.t & VT_BTYPE); + + /* now we convert second operand */ + gen_cast(&type); + if (islv) { + mk_pointer(&vtop->type); + gaddrof(); + } + else if (VT_STRUCT == (vtop->type.t & VT_BTYPE)) + gaddrof(); + rc = RC_INT; + if (is_float(type.t)) { + rc = RC_FLOAT; +#ifdef TCC_TARGET_X86_64 + if ((type.t & VT_BTYPE) == VT_LDOUBLE) { + rc = RC_ST0; + } +#endif + } else if ((type.t & VT_BTYPE) == VT_LLONG) { + /* for long longs, we use fixed registers to avoid having + to handle a complicated move */ + rc = RC_IRET; + } + + r2 = gv(rc); + /* this is horrible, but we must also convert first + operand */ + tt = gjmp(0); + gsym(u); + /* put again first value and cast it */ + *vtop = sv; + gen_cast(&type); + if (islv) { + mk_pointer(&vtop->type); + gaddrof(); + } + else if (VT_STRUCT == (vtop->type.t & VT_BTYPE)) + gaddrof(); + r1 = gv(rc); + move_reg(r2, r1, type.t); + vtop->r = r2; + gsym(tt); + if (islv) + indir(); + } + } +} + +static void expr_eq(void) +{ + int t; + + expr_cond(); + if (tok == '=' || + (tok >= TOK_A_MOD && tok <= TOK_A_DIV) || + tok == TOK_A_XOR || tok == TOK_A_OR || + tok == TOK_A_SHL || tok == TOK_A_SAR) { + test_lvalue(); + t = tok; + next(); + if (t == '=') { + expr_eq(); + } else { + vdup(); + expr_eq(); + gen_op(t & 0x7f); + } + vstore(); + } +} + +ST_FUNC void gexpr(void) +{ + while (1) { + expr_eq(); + if (tok != ',') + break; + vpop(); + next(); + } +} + +/* parse an expression and return its type without any side effect. */ +static void expr_type(CType *type) +{ + int saved_nocode_wanted; + + saved_nocode_wanted = nocode_wanted; + nocode_wanted = 1; + gexpr(); + *type = vtop->type; + vpop(); + nocode_wanted = saved_nocode_wanted; +} + +/* parse a unary expression and return its type without any side + effect. */ +static void unary_type(CType *type) +{ + int a; + + a = nocode_wanted; + nocode_wanted = 1; + unary(); + *type = vtop->type; + vpop(); + nocode_wanted = a; +} + +/* parse a constant expression and return value in vtop. */ +static void expr_const1(void) +{ + int a; + a = const_wanted; + const_wanted = 1; + expr_cond(); + const_wanted = a; +} + +/* parse an integer constant and return its value. */ +ST_FUNC int expr_const(void) +{ + int c; + expr_const1(); + if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) != VT_CONST) + expect("constant expression"); + c = vtop->c.i; + vpop(); + return c; +} + +/* return the label token if current token is a label, otherwise + return zero */ +static int is_label(void) +{ + int last_tok; + + /* fast test first */ + if (tok < TOK_UIDENT) + return 0; + /* no need to save tokc because tok is an identifier */ + last_tok = tok; + next(); + if (tok == ':') { + next(); + return last_tok; + } else { + unget_tok(last_tok); + return 0; + } +} + +static void label_or_decl(int l) +{ + int last_tok; + + /* fast test first */ + if (tok >= TOK_UIDENT) + { + /* no need to save tokc because tok is an identifier */ + last_tok = tok; + next(); + if (tok == ':') { + unget_tok(last_tok); + return; + } + unget_tok(last_tok); + } + decl(l); +} + +static void block(int *bsym, int *csym, int *case_sym, int *def_sym, + int case_reg, int is_expr) +{ + int a, b, c, d; + Sym *s, *frame_bottom; + + /* generate line number info */ + if (tcc_state->do_debug && + (last_line_num != file->line_num || last_ind != ind)) { + put_stabn(N_SLINE, 0, file->line_num, ind - func_ind); + last_ind = ind; + last_line_num = file->line_num; + } + + if (is_expr) { + /* default return value is (void) */ + vpushi(0); + vtop->type.t = VT_VOID; + } + + if (tok == TOK_IF) { + /* if test */ + next(); + skip('('); + gexpr(); + skip(')'); + a = gvtst(1, 0); + block(bsym, csym, case_sym, def_sym, case_reg, 0); + c = tok; + if (c == TOK_ELSE) { + next(); + d = gjmp(0); + gsym(a); + block(bsym, csym, case_sym, def_sym, case_reg, 0); + gsym(d); /* patch else jmp */ + } else + gsym(a); + } else if (tok == TOK_WHILE) { + next(); + d = ind; + vla_sp_restore(); + skip('('); + gexpr(); + skip(')'); + a = gvtst(1, 0); + b = 0; + block(&a, &b, case_sym, def_sym, case_reg, 0); + gjmp_addr(d); + gsym(a); + gsym_addr(b, d); + } else if (tok == '{') { + Sym *llabel; + int block_vla_sp_loc = vla_sp_loc, saved_vlas_in_scope = vlas_in_scope; + + next(); + /* record local declaration stack position */ + s = local_stack; + frame_bottom = sym_push2(&local_stack, SYM_FIELD, 0, 0); + frame_bottom->next = scope_stack_bottom; + scope_stack_bottom = frame_bottom; + llabel = local_label_stack; + + /* handle local labels declarations */ + if (tok == TOK_LABEL) { + next(); + for(;;) { + if (tok < TOK_UIDENT) + expect("label identifier"); + label_push(&local_label_stack, tok, LABEL_DECLARED); + next(); + if (tok == ',') { + next(); + } else { + skip(';'); + break; + } + } + } + while (tok != '}') { + label_or_decl(VT_LOCAL); + if (tok != '}') { + if (is_expr) + vpop(); + block(bsym, csym, case_sym, def_sym, case_reg, is_expr); + } + } + /* pop locally defined labels */ + label_pop(&local_label_stack, llabel); + if(is_expr) { + /* XXX: this solution makes only valgrind happy... + triggered by gcc.c-torture/execute/20000917-1.c */ + Sym *p; + switch(vtop->type.t & VT_BTYPE) { + /* case VT_PTR: */ + /* this breaks a compilation of the linux kernel v2.4.26 */ + /* pmd_t *new = ({ __asm__ __volatile__("ud2\n") ; ((pmd_t *)1); }); */ + /* Look a commit a80acab: Display error on statement expressions with complex return type */ + /* A pointer is not a complex return type */ + case VT_STRUCT: + case VT_ENUM: + case VT_FUNC: + for(p=vtop->type.ref;p;p=p->prev) + if(p->prev==s) + tcc_error("unsupported expression type"); + } + } + /* pop locally defined symbols */ + scope_stack_bottom = scope_stack_bottom->next; + sym_pop(&local_stack, s); + + /* Pop VLA frames and restore stack pointer if required */ + if (vlas_in_scope > saved_vlas_in_scope) { + vla_sp_loc = saved_vlas_in_scope ? block_vla_sp_loc : vla_sp_root_loc; + vla_sp_restore(); + } + vlas_in_scope = saved_vlas_in_scope; + + next(); + } else if (tok == TOK_RETURN) { + next(); + if (tok != ';') { + gexpr(); + gen_assign_cast(&func_vt); +#ifdef TCC_TARGET_ARM64 + // Perhaps it would be better to use this for all backends: + greturn(); +#else + if ((func_vt.t & VT_BTYPE) == VT_STRUCT) { + CType type, ret_type; + int ret_align, ret_nregs, regsize; + ret_nregs = gfunc_sret(&func_vt, func_var, &ret_type, + &ret_align, ®size); + if (0 == ret_nregs) { + /* if returning structure, must copy it to implicit + first pointer arg location */ + type = func_vt; + mk_pointer(&type); + vset(&type, VT_LOCAL | VT_LVAL, func_vc); + indir(); + vswap(); + /* copy structure value to pointer */ + vstore(); + } else { + /* returning structure packed into registers */ + int r, size, addr, align; + size = type_size(&func_vt,&align); + if ((vtop->r != (VT_LOCAL | VT_LVAL) || + (vtop->c.i & (ret_align-1))) + && (align & (ret_align-1))) { + loc = (loc - size) & -ret_align; + addr = loc; + type = func_vt; + vset(&type, VT_LOCAL | VT_LVAL, addr); + vswap(); + vstore(); + vpop(); + vset(&ret_type, VT_LOCAL | VT_LVAL, addr); + } + vtop->type = ret_type; + if (is_float(ret_type.t)) + r = rc_fret(ret_type.t); + else + r = RC_IRET; + + for (;;) { + gv(r); + if (--ret_nregs == 0) + break; + /* We assume that when a structure is returned in multiple + registers, their classes are consecutive values of the + suite s(n) = 2^n */ + r <<= 1; + vtop->c.i += regsize; + vtop->r = VT_LOCAL | VT_LVAL; + } + } + } else if (is_float(func_vt.t)) { + gv(rc_fret(func_vt.t)); + } else { + gv(RC_IRET); + } +#endif + vtop--; /* NOT vpop() because on x86 it would flush the fp stack */ + } + skip(';'); + rsym = gjmp(rsym); /* jmp */ + } else if (tok == TOK_BREAK) { + /* compute jump */ + if (!bsym) + tcc_error("cannot break"); + *bsym = gjmp(*bsym); + next(); + skip(';'); + } else if (tok == TOK_CONTINUE) { + /* compute jump */ + if (!csym) + tcc_error("cannot continue"); + vla_sp_restore_root(); + *csym = gjmp(*csym); + next(); + skip(';'); + } else if (tok == TOK_FOR) { + int e; + next(); + skip('('); + s = local_stack; + frame_bottom = sym_push2(&local_stack, SYM_FIELD, 0, 0); + frame_bottom->next = scope_stack_bottom; + scope_stack_bottom = frame_bottom; + if (tok != ';') { + /* c99 for-loop init decl? */ + if (!decl0(VT_LOCAL, 1)) { + /* no, regular for-loop init expr */ + gexpr(); + vpop(); + } + } + skip(';'); + d = ind; + c = ind; + vla_sp_restore(); + a = 0; + b = 0; + if (tok != ';') { + gexpr(); + a = gvtst(1, 0); + } + skip(';'); + if (tok != ')') { + e = gjmp(0); + c = ind; + vla_sp_restore(); + gexpr(); + vpop(); + gjmp_addr(d); + gsym(e); + } + skip(')'); + block(&a, &b, case_sym, def_sym, case_reg, 0); + gjmp_addr(c); + gsym(a); + gsym_addr(b, c); + scope_stack_bottom = scope_stack_bottom->next; + sym_pop(&local_stack, s); + } else + if (tok == TOK_DO) { + next(); + a = 0; + b = 0; + d = ind; + vla_sp_restore(); + block(&a, &b, case_sym, def_sym, case_reg, 0); + skip(TOK_WHILE); + skip('('); + gsym(b); + gexpr(); + c = gvtst(0, 0); + gsym_addr(c, d); + skip(')'); + gsym(a); + skip(';'); + } else + if (tok == TOK_SWITCH) { + next(); + skip('('); + gexpr(); + /* XXX: other types than integer */ + case_reg = gv(RC_INT); + vpop(); + skip(')'); + a = 0; + b = gjmp(0); /* jump to first case */ + c = 0; + block(&a, csym, &b, &c, case_reg, 0); + /* if no default, jmp after switch */ + if (c == 0) + c = ind; + /* default label */ + gsym_addr(b, c); + /* break label */ + gsym(a); + } else + if (tok == TOK_CASE) { + int v1, v2; + if (!case_sym) + expect("switch"); + next(); + v1 = expr_const(); + v2 = v1; + if (gnu_ext && tok == TOK_DOTS) { + next(); + v2 = expr_const(); + if (v2 < v1) + tcc_warning("empty case range"); + } + /* since a case is like a label, we must skip it with a jmp */ + b = gjmp(0); + gsym(*case_sym); + vseti(case_reg, 0); + vdup(); + vpushi(v1); + if (v1 == v2) { + gen_op(TOK_EQ); + *case_sym = gtst(1, 0); + } else { + gen_op(TOK_GE); + *case_sym = gtst(1, 0); + vseti(case_reg, 0); + vpushi(v2); + gen_op(TOK_LE); + *case_sym = gtst(1, *case_sym); + } + case_reg = gv(RC_INT); + vpop(); + gsym(b); + skip(':'); + is_expr = 0; + goto block_after_label; + } else + if (tok == TOK_DEFAULT) { + next(); + skip(':'); + if (!def_sym) + expect("switch"); + if (*def_sym) + tcc_error("too many 'default'"); + *def_sym = ind; + is_expr = 0; + goto block_after_label; + } else + if (tok == TOK_GOTO) { + next(); + if (tok == '*' && gnu_ext) { + /* computed goto */ + next(); + gexpr(); + if ((vtop->type.t & VT_BTYPE) != VT_PTR) + expect("pointer"); + ggoto(); + } else if (tok >= TOK_UIDENT) { + s = label_find(tok); + /* put forward definition if needed */ + if (!s) { + s = label_push(&global_label_stack, tok, LABEL_FORWARD); + } else { + if (s->r == LABEL_DECLARED) + s->r = LABEL_FORWARD; + } + vla_sp_restore_root(); + if (s->r & LABEL_FORWARD) + s->jnext = gjmp(s->jnext); + else + gjmp_addr(s->jnext); + next(); + } else { + expect("label identifier"); + } + skip(';'); + } else if (tok == TOK_ASM1 || tok == TOK_ASM2 || tok == TOK_ASM3) { + asm_instr(); + } else { + b = is_label(); + if (b) { + /* label case */ + s = label_find(b); + if (s) { + if (s->r == LABEL_DEFINED) + tcc_error("duplicate label '%s'", get_tok_str(s->v, NULL)); + gsym(s->jnext); + s->r = LABEL_DEFINED; + } else { + s = label_push(&global_label_stack, b, LABEL_DEFINED); + } + s->jnext = ind; + vla_sp_restore(); + /* we accept this, but it is a mistake */ + block_after_label: + if (tok == '}') { + tcc_warning("deprecated use of label at end of compound statement"); + } else { + if (is_expr) + vpop(); + block(bsym, csym, case_sym, def_sym, case_reg, is_expr); + } + } else { + /* expression case */ + if (tok != ';') { + if (is_expr) { + vpop(); + gexpr(); + } else { + gexpr(); + vpop(); + } + } + skip(';'); + } + } +} + +/* t is the array or struct type. c is the array or struct + address. cur_index/cur_field is the pointer to the current + value. 'size_only' is true if only size info is needed (only used + in arrays) */ +static void decl_designator(CType *type, Section *sec, unsigned long c, + int *cur_index, Sym **cur_field, + int size_only) +{ + Sym *s, *f; + int notfirst, index, index_last, align, l, nb_elems, elem_size; + CType type1; + + notfirst = 0; + elem_size = 0; + nb_elems = 1; + if (gnu_ext && (l = is_label()) != 0) + goto struct_field; + while (tok == '[' || tok == '.') { + if (tok == '[') { + if (!(type->t & VT_ARRAY)) + expect("array type"); + s = type->ref; + next(); + index = expr_const(); + if (index < 0 || (s->c >= 0 && index >= s->c)) + expect("invalid index"); + if (tok == TOK_DOTS && gnu_ext) { + next(); + index_last = expr_const(); + if (index_last < 0 || + (s->c >= 0 && index_last >= s->c) || + index_last < index) + expect("invalid index"); + } else { + index_last = index; + } + skip(']'); + if (!notfirst) + *cur_index = index_last; + type = pointed_type(type); + elem_size = type_size(type, &align); + c += index * elem_size; + /* NOTE: we only support ranges for last designator */ + nb_elems = index_last - index + 1; + if (nb_elems != 1) { + notfirst = 1; + break; + } + } else { + next(); + l = tok; + next(); + struct_field: + if ((type->t & VT_BTYPE) != VT_STRUCT) + expect("struct/union type"); + s = type->ref; + l |= SYM_FIELD; + f = s->next; + while (f) { + if (f->v == l) + break; + f = f->next; + } + if (!f) + expect("field"); + if (!notfirst) + *cur_field = f; + /* XXX: fix this mess by using explicit storage field */ + type1 = f->type; + type1.t |= (type->t & ~VT_TYPE); + type = &type1; + c += f->c; + } + notfirst = 1; + } + if (notfirst) { + if (tok == '=') { + next(); + } else { + if (!gnu_ext) + expect("="); + } + } else { + if (type->t & VT_ARRAY) { + index = *cur_index; + type = pointed_type(type); + c += index * type_size(type, &align); + } else { + f = *cur_field; + if (!f) + tcc_error("too many field init"); + /* XXX: fix this mess by using explicit storage field */ + type1 = f->type; + type1.t |= (type->t & ~VT_TYPE); + type = &type1; + c += f->c; + } + } + decl_initializer(type, sec, c, 0, size_only); + + /* XXX: make it more general */ + if (!size_only && nb_elems > 1) { + unsigned long c_end; + uint8_t *src, *dst; + int i; + + if (!sec) + tcc_error("range init not supported yet for dynamic storage"); + c_end = c + nb_elems * elem_size; + if (c_end > sec->data_allocated) + section_realloc(sec, c_end); + src = sec->data + c; + dst = src; + for(i = 1; i < nb_elems; i++) { + dst += elem_size; + memcpy(dst, src, elem_size); + } + } +} + +#define EXPR_VAL 0 +#define EXPR_CONST 1 +#define EXPR_ANY 2 + +/* store a value or an expression directly in global data or in local array */ +static void init_putv(CType *type, Section *sec, unsigned long c, + int v, int expr_type) +{ + int saved_global_expr, bt, bit_pos, bit_size; + void *ptr; + unsigned long long bit_mask; + CType dtype; + + switch(expr_type) { + case EXPR_VAL: + vpushi(v); + break; + case EXPR_CONST: + /* compound literals must be allocated globally in this case */ + saved_global_expr = global_expr; + global_expr = 1; + expr_const1(); + global_expr = saved_global_expr; + /* NOTE: symbols are accepted */ + if ((vtop->r & (VT_VALMASK | VT_LVAL)) != VT_CONST) + tcc_error("initializer element is not constant"); + break; + case EXPR_ANY: + expr_eq(); + break; + } + + dtype = *type; + dtype.t &= ~VT_CONSTANT; /* need to do that to avoid false warning */ + + if (sec) { + /* XXX: not portable */ + /* XXX: generate error if incorrect relocation */ + gen_assign_cast(&dtype); + bt = type->t & VT_BTYPE; + /* we'll write at most 16 bytes */ + if (c + 16 > sec->data_allocated) { + section_realloc(sec, c + 16); + } + ptr = sec->data + c; + /* XXX: make code faster ? */ + if (!(type->t & VT_BITFIELD)) { + bit_pos = 0; + bit_size = 32; + bit_mask = -1LL; + } else { + bit_pos = (vtop->type.t >> VT_STRUCT_SHIFT) & 0x3f; + bit_size = (vtop->type.t >> (VT_STRUCT_SHIFT + 6)) & 0x3f; + bit_mask = (1LL << bit_size) - 1; + } + if ((vtop->r & VT_SYM) && + (bt == VT_BYTE || + bt == VT_SHORT || + bt == VT_DOUBLE || + bt == VT_LDOUBLE || + bt == VT_LLONG || + (bt == VT_INT && bit_size != 32))) + tcc_error("initializer element is not computable at load time"); + switch(bt) { + /* XXX: when cross-compiling we assume that each type has the + same representation on host and target, which is likely to + be wrong in the case of long double */ + case VT_BOOL: + vtop->c.i = (vtop->c.i != 0); + case VT_BYTE: + *(char *)ptr |= (vtop->c.i & bit_mask) << bit_pos; + break; + case VT_SHORT: + *(short *)ptr |= (vtop->c.i & bit_mask) << bit_pos; + break; + case VT_DOUBLE: + *(double *)ptr = vtop->c.d; + break; + case VT_LDOUBLE: + *(long double *)ptr = vtop->c.ld; + break; + case VT_LLONG: + *(long long *)ptr |= (vtop->c.i & bit_mask) << bit_pos; + break; + case VT_PTR: { + addr_t val = (vtop->c.i & bit_mask) << bit_pos; +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + if (vtop->r & VT_SYM) + greloca(sec, vtop->sym, c, R_DATA_PTR, val); + else + *(addr_t *)ptr |= val; +#else + if (vtop->r & VT_SYM) + greloc(sec, vtop->sym, c, R_DATA_PTR); + *(addr_t *)ptr |= val; +#endif + break; + } + default: { + int val = (vtop->c.i & bit_mask) << bit_pos; +#if defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64) + if (vtop->r & VT_SYM) + greloca(sec, vtop->sym, c, R_DATA_PTR, val); + else + *(int *)ptr |= val; +#else + if (vtop->r & VT_SYM) + greloc(sec, vtop->sym, c, R_DATA_PTR); + *(int *)ptr |= val; +#endif + break; + } + } + vtop--; + } else { + vset(&dtype, VT_LOCAL|VT_LVAL, c); + vswap(); + vstore(); + vpop(); + } +} + +/* put zeros for variable based init */ +static void init_putz(CType *t, Section *sec, unsigned long c, int size) +{ + if (sec) { + /* nothing to do because globals are already set to zero */ + } else { + vpush_global_sym(&func_old_type, TOK_memset); + vseti(VT_LOCAL, c); +#ifdef TCC_TARGET_ARM + vpushs(size); + vpushi(0); +#else + vpushi(0); + vpushs(size); +#endif + gfunc_call(3); + } +} + +/* 't' contains the type and storage info. 'c' is the offset of the + object in section 'sec'. If 'sec' is NULL, it means stack based + allocation. 'first' is true if array '{' must be read (multi + dimension implicit array init handling). 'size_only' is true if + size only evaluation is wanted (only for arrays). */ +static void decl_initializer(CType *type, Section *sec, unsigned long c, + int first, int size_only) +{ + int index, array_length, n, no_oblock, nb, parlevel, parlevel1, i; + int size1, align1, expr_type; + Sym *s, *f; + CType *t1; + + if (type->t & VT_VLA) { + int a; + + /* save current stack pointer */ + if (vlas_in_scope == 0) { + if (vla_sp_root_loc == -1) + vla_sp_root_loc = (loc -= PTR_SIZE); + gen_vla_sp_save(vla_sp_root_loc); + } + + vla_runtime_type_size(type, &a); + gen_vla_alloc(type, a); + gen_vla_sp_save(c); + vla_sp_loc = c; + vlas_in_scope++; + } else if (type->t & VT_ARRAY) { + s = type->ref; + n = s->c; + array_length = 0; + t1 = pointed_type(type); + size1 = type_size(t1, &align1); + + no_oblock = 1; + if ((first && tok != TOK_LSTR && tok != TOK_STR) || + tok == '{') { + if (tok != '{') + tcc_error("character array initializer must be a literal," + " optionally enclosed in braces"); + skip('{'); + no_oblock = 0; + } + + /* only parse strings here if correct type (otherwise: handle + them as ((w)char *) expressions */ + if ((tok == TOK_LSTR && +#ifdef TCC_TARGET_PE + (t1->t & VT_BTYPE) == VT_SHORT && (t1->t & VT_UNSIGNED) +#else + (t1->t & VT_BTYPE) == VT_INT +#endif + ) || (tok == TOK_STR && (t1->t & VT_BTYPE) == VT_BYTE)) { + while (tok == TOK_STR || tok == TOK_LSTR) { + int cstr_len, ch; + + /* compute maximum number of chars wanted */ + if (tok == TOK_STR) + cstr_len = tokc.str.size; + else + cstr_len = tokc.str.size / sizeof(nwchar_t); + cstr_len--; + nb = cstr_len; + if (n >= 0 && nb > (n - array_length)) + nb = n - array_length; + if (!size_only) { + if (cstr_len > nb) + tcc_warning("initializer-string for array is too long"); + /* in order to go faster for common case (char + string in global variable, we handle it + specifically */ + if (sec && tok == TOK_STR && size1 == 1) { + memcpy(sec->data + c + array_length, tokc.str.data, nb); + } else { + for(i=0;i= 0 && index >= n) + tcc_error("index too large"); + /* must put zero in holes (note that doing it that way + ensures that it even works with designators) */ + if (!size_only && array_length < index) { + init_putz(t1, sec, c + array_length * size1, + (index - array_length) * size1); + } + index++; + if (index > array_length) + array_length = index; + /* special test for multi dimensional arrays (may not + be strictly correct if designators are used at the + same time) */ + if (index >= n && no_oblock) + break; + if (tok == '}') + break; + skip(','); + } + } + if (!no_oblock) + skip('}'); + /* put zeros at the end */ + if (!size_only && n >= 0 && array_length < n) { + init_putz(t1, sec, c + array_length * size1, + (n - array_length) * size1); + } + /* patch type size if needed */ + if (n < 0) + s->c = array_length; + } else if ((type->t & VT_BTYPE) == VT_STRUCT && + (sec || !first || tok == '{')) { + + /* NOTE: the previous test is a specific case for automatic + struct/union init */ + /* XXX: union needs only one init */ + + int par_count = 0; + if (tok == '(') { + AttributeDef ad1; + CType type1; + next(); + if (tcc_state->old_struct_init_code) { + /* an old version of struct initialization. + It have a problems. But with a new version + linux 2.4.26 can't load ramdisk. + */ + while (tok == '(') { + par_count++; + next(); + } + if (!parse_btype(&type1, &ad1)) + expect("cast"); + type_decl(&type1, &ad1, &n, TYPE_ABSTRACT); + #if 0 + if (!is_assignable_types(type, &type1)) + tcc_error("invalid type for cast"); + #endif + skip(')'); + } + else + { + if (tok != '(') { + if (!parse_btype(&type1, &ad1)) + expect("cast"); + type_decl(&type1, &ad1, &n, TYPE_ABSTRACT); + #if 0 + if (!is_assignable_types(type, &type1)) + tcc_error("invalid type for cast"); + #endif + skip(')'); + } else + unget_tok(tok); + } + } + + no_oblock = 1; + if (first || tok == '{') { + skip('{'); + no_oblock = 0; + } + s = type->ref; + f = s->next; + array_length = 0; + index = 0; + n = s->c; + while (tok != '}') { + decl_designator(type, sec, c, NULL, &f, size_only); + index = f->c; + if (!size_only && array_length < index) { + init_putz(type, sec, c + array_length, + index - array_length); + } + index = index + type_size(&f->type, &align1); + if (index > array_length) + array_length = index; + + /* gr: skip fields from same union - ugly. */ + while (f->next) { + int align = 0; + int f_size = type_size(&f->type, &align); + int f_type = (f->type.t & VT_BTYPE); + + ///printf("index: %2d %08x -- %2d %08x\n", f->c, f->type.t, f->next->c, f->next->type.t); + /* test for same offset */ + if (f->next->c != f->c) + break; + if ((f_type == VT_STRUCT) && (f_size == 0)) { + /* + Lets assume a structure of size 0 can't be a member of the union. + This allow to compile the following code from a linux kernel v2.4.26 + typedef struct { } rwlock_t; + struct fs_struct { + int count; + rwlock_t lock; + int umask; + }; + struct fs_struct init_fs = { { (1) }, (rwlock_t) {}, 0022, }; + tcc-0.9.23 can succesfully compile this version of the kernel. + gcc don't have problems with this code too. + */ + break; + } + /* if yes, test for bitfield shift */ + if ((f->type.t & VT_BITFIELD) && (f->next->type.t & VT_BITFIELD)) { + int bit_pos_1 = (f->type.t >> VT_STRUCT_SHIFT) & 0x3f; + int bit_pos_2 = (f->next->type.t >> VT_STRUCT_SHIFT) & 0x3f; + //printf("bitfield %d %d\n", bit_pos_1, bit_pos_2); + if (bit_pos_1 != bit_pos_2) + break; + } + f = f->next; + } + + f = f->next; + if (no_oblock && f == NULL) + break; + if (tok == '}') + break; + skip(','); + } + /* put zeros at the end */ + if (!size_only && array_length < n) { + init_putz(type, sec, c + array_length, + n - array_length); + } + if (!no_oblock) + skip('}'); + while (par_count) { + skip(')'); + par_count--; + } + } else if (tok == '{') { + next(); + decl_initializer(type, sec, c, first, size_only); + skip('}'); + } else if (size_only) { + /* just skip expression */ + parlevel = parlevel1 = 0; + while ((parlevel > 0 || parlevel1 > 0 || + (tok != '}' && tok != ',')) && tok != -1) { + if (tok == '(') + parlevel++; + else if (tok == ')') { + if (parlevel == 0 && parlevel1 == 0) + break; + parlevel--; + } + else if (tok == '{') + parlevel1++; + else if (tok == '}') { + if (parlevel == 0 && parlevel1 == 0) + break; + parlevel1--; + } + next(); + } + } else { + /* currently, we always use constant expression for globals + (may change for scripting case) */ + expr_type = EXPR_CONST; + if (!sec) + expr_type = EXPR_ANY; + init_putv(type, sec, c, 0, expr_type); + } +} + +/* parse an initializer for type 't' if 'has_init' is non zero, and + allocate space in local or global data space ('r' is either + VT_LOCAL or VT_CONST). If 'v' is non zero, then an associated + variable 'v' of scope 'scope' is declared before initializers + are parsed. If 'v' is zero, then a reference to the new object + is put in the value stack. If 'has_init' is 2, a special parsing + is done to handle string constants. */ +static void decl_initializer_alloc(CType *type, AttributeDef *ad, int r, + int has_init, int v, int scope) +{ + int size, align, addr, data_offset; + int level; + ParseState saved_parse_state = {0}; + TokenString init_str; + Section *sec; + Sym *flexible_array; + + flexible_array = NULL; + if ((type->t & VT_BTYPE) == VT_STRUCT) { + Sym *field = type->ref->next; + if (field) { + while (field->next) + field = field->next; + if (field->type.t & VT_ARRAY && field->type.ref->c < 0) + flexible_array = field; + } + } + + size = type_size(type, &align); + /* If unknown size, we must evaluate it before + evaluating initializers because + initializers can generate global data too + (e.g. string pointers or ISOC99 compound + literals). It also simplifies local + initializers handling */ + tok_str_new(&init_str); + if (size < 0 || (flexible_array && has_init)) { + if (!has_init) + tcc_error("unknown type size"); + /* get all init string */ + if (has_init == 2) { + /* only get strings */ + while (tok == TOK_STR || tok == TOK_LSTR) { + tok_str_add_tok(&init_str); + next(); + } + } else { + level = 0; + while (level > 0 || (tok != ',' && tok != ';')) { + if (tok < 0) + tcc_error("unexpected end of file in initializer"); + tok_str_add_tok(&init_str); + if (tok == '{') + level++; + else if (tok == '}') { + level--; + if (level <= 0) { + next(); + break; + } + } + next(); + } + } + tok_str_add(&init_str, -1); + tok_str_add(&init_str, 0); + + /* compute size */ + save_parse_state(&saved_parse_state); + + begin_macro(&init_str, 0); + next(); + decl_initializer(type, NULL, 0, 1, 1); + /* prepare second initializer parsing */ + macro_ptr = init_str.str; + next(); + + /* if still unknown size, error */ + size = type_size(type, &align); + if (size < 0) + tcc_error("unknown type size"); + } + /* If there's a flex member and it was used in the initializer + adjust size. */ + if (flexible_array && + flexible_array->type.ref->c > 0) + size += flexible_array->type.ref->c + * pointed_size(&flexible_array->type); + /* take into account specified alignment if bigger */ + if (ad->a.aligned) { + if (ad->a.aligned > align) + align = ad->a.aligned; + } else if (ad->a.packed) { + align = 1; + } + if ((r & VT_VALMASK) == VT_LOCAL) { + sec = NULL; +#ifdef CONFIG_TCC_BCHECK + if (tcc_state->do_bounds_check && (type->t & VT_ARRAY)) { + loc--; + } +#endif + loc = (loc - size) & -align; + addr = loc; +#ifdef CONFIG_TCC_BCHECK + /* handles bounds */ + /* XXX: currently, since we do only one pass, we cannot track + '&' operators, so we add only arrays */ + if (tcc_state->do_bounds_check && (type->t & VT_ARRAY)) { + addr_t *bounds_ptr; + /* add padding between regions */ + loc--; + /* then add local bound info */ + bounds_ptr = section_ptr_add(lbounds_section, 2 * sizeof(addr_t)); + bounds_ptr[0] = addr; + bounds_ptr[1] = size; + } +#endif + if (v) { + /* local variable */ + sym_push(v, type, r, addr); + } else { + /* push local reference */ + vset(type, r, addr); + } + } else { + Sym *sym; + + sym = NULL; + if (v && scope == VT_CONST) { + /* see if the symbol was already defined */ + sym = sym_find(v); + if (sym) { + if (!is_compatible_types(&sym->type, type)) + tcc_error("incompatible types for redefinition of '%s'", + get_tok_str(v, NULL)); + if (sym->type.t & VT_EXTERN) { + /* if the variable is extern, it was not allocated */ + sym->type.t &= ~VT_EXTERN; + /* set array size if it was omitted in extern + declaration */ + if ((sym->type.t & VT_ARRAY) && + sym->type.ref->c < 0 && + type->ref->c >= 0) + sym->type.ref->c = type->ref->c; + } else { + /* we accept several definitions of the same + global variable. this is tricky, because we + must play with the SHN_COMMON type of the symbol */ + /* XXX: should check if the variable was already + initialized. It is incorrect to initialized it + twice */ + /* no init data, we won't add more to the symbol */ + if (!has_init) + goto no_alloc; + } + } + } + + /* allocate symbol in corresponding section */ + sec = ad->section; + if (!sec) { + if (has_init) + sec = data_section; + else if (tcc_state->nocommon) + sec = bss_section; + } + if (sec) { + data_offset = sec->data_offset; + data_offset = (data_offset + align - 1) & -align; + addr = data_offset; + /* very important to increment global pointer at this time + because initializers themselves can create new initializers */ + data_offset += size; +#ifdef CONFIG_TCC_BCHECK + /* add padding if bound check */ + if (tcc_state->do_bounds_check) + data_offset++; +#endif + sec->data_offset = data_offset; + /* allocate section space to put the data */ + if (sec->sh_type != SHT_NOBITS && + data_offset > sec->data_allocated) + section_realloc(sec, data_offset); + /* align section if needed */ + if (align > sec->sh_addralign) + sec->sh_addralign = align; + } else { + addr = 0; /* avoid warning */ + } + + if (v) { + if (scope != VT_CONST || !sym) { + sym = sym_push(v, type, r | VT_SYM, 0); + sym->asm_label = ad->asm_label; + } + /* update symbol definition */ + if (sec) { + put_extern_sym(sym, sec, addr, size); + } else { + ElfW(Sym) *esym; + /* put a common area */ + put_extern_sym(sym, NULL, align, size); + /* XXX: find a nicer way */ + esym = &((ElfW(Sym) *)symtab_section->data)[sym->c]; + esym->st_shndx = SHN_COMMON; + } + } else { + /* push global reference */ + sym = get_sym_ref(type, sec, addr, size); + vpushsym(type, sym); + } + /* patch symbol weakness */ + if (type->t & VT_WEAK) + weaken_symbol(sym); + apply_visibility(sym, type); +#ifdef CONFIG_TCC_BCHECK + /* handles bounds now because the symbol must be defined + before for the relocation */ + if (tcc_state->do_bounds_check) { + addr_t *bounds_ptr; + + greloc(bounds_section, sym, bounds_section->data_offset, R_DATA_PTR); + /* then add global bound info */ + bounds_ptr = section_ptr_add(bounds_section, 2 * sizeof(addr_t)); + bounds_ptr[0] = 0; /* relocated */ + bounds_ptr[1] = size; + } +#endif + } + if (has_init || (type->t & VT_VLA)) { + decl_initializer(type, sec, addr, 1, 0); + /* restore parse state if needed */ + if (init_str.str) { + end_macro(); + restore_parse_state(&saved_parse_state); + } + /* patch flexible array member size back to -1, */ + /* for possible subsequent similar declarations */ + if (flexible_array) + flexible_array->type.ref->c = -1; + } + no_alloc: ; +} + +static void put_func_debug(Sym *sym) +{ + char buf[512]; + + /* stabs info */ + /* XXX: we put here a dummy type */ + snprintf(buf, sizeof(buf), "%s:%c1", + funcname, sym->type.t & VT_STATIC ? 'f' : 'F'); + put_stabs_r(buf, N_FUN, 0, file->line_num, 0, + cur_text_section, sym->c); + /* //gr gdb wants a line at the function */ + put_stabn(N_SLINE, 0, file->line_num, 0); + last_ind = 0; + last_line_num = 0; +} + +/* parse an old style function declaration list */ +/* XXX: check multiple parameter */ +static void func_decl_list(Sym *func_sym) +{ + AttributeDef ad; + int v; + Sym *s; + CType btype, type; + + /* parse each declaration */ + while (tok != '{' && tok != ';' && tok != ',' && tok != TOK_EOF && + tok != TOK_ASM1 && tok != TOK_ASM2 && tok != TOK_ASM3) { + if (!parse_btype(&btype, &ad)) + expect("declaration list"); + if (((btype.t & VT_BTYPE) == VT_ENUM || + (btype.t & VT_BTYPE) == VT_STRUCT) && + tok == ';') { + /* we accept no variable after */ + } else { + for(;;) { + type = btype; + type_decl(&type, &ad, &v, TYPE_DIRECT); + /* find parameter in function parameter list */ + s = func_sym->next; + while (s != NULL) { + if ((s->v & ~SYM_FIELD) == v) + goto found; + s = s->next; + } + tcc_error("declaration for parameter '%s' but no such parameter", + get_tok_str(v, NULL)); + found: + /* check that no storage specifier except 'register' was given */ + if (type.t & VT_STORAGE) + tcc_error("storage class specified for '%s'", get_tok_str(v, NULL)); + convert_parameter_type(&type); + /* we can add the type (NOTE: it could be local to the function) */ + s->type = type; + /* accept other parameters */ + if (tok == ',') + next(); + else + break; + } + } + skip(';'); + } +} + +/* parse a function defined by symbol 'sym' and generate its code in + 'cur_text_section' */ +static void gen_function(Sym *sym) +{ + int saved_nocode_wanted = nocode_wanted; + + nocode_wanted = 0; + ind = cur_text_section->data_offset; + /* NOTE: we patch the symbol size later */ + put_extern_sym(sym, cur_text_section, ind, 0); + funcname = get_tok_str(sym->v, NULL); + func_ind = ind; + /* Initialize VLA state */ + vla_sp_loc = -1; + vla_sp_root_loc = -1; + /* put debug symbol */ + if (tcc_state->do_debug) + put_func_debug(sym); + /* push a dummy symbol to enable local sym storage */ + sym_push2(&local_stack, SYM_FIELD, 0, 0); + gfunc_prolog(&sym->type); +#ifdef CONFIG_TCC_BCHECK + if (tcc_state->do_bounds_check && !strcmp(funcname, "main")) { + int i; + Sym *sym; + for (i = 0, sym = local_stack; i < 2; i++, sym = sym->prev) { + if (sym->v & SYM_FIELD || sym->prev->v & SYM_FIELD) + break; + vpush_global_sym(&func_old_type, TOK___bound_main_arg); + vset(&sym->type, sym->r, sym->c); + gfunc_call(1); + } + } +#endif + rsym = 0; + block(NULL, NULL, NULL, NULL, 0, 0); + gsym(rsym); + gfunc_epilog(); + cur_text_section->data_offset = ind; + label_pop(&global_label_stack, NULL); + /* reset local stack */ + scope_stack_bottom = NULL; + sym_pop(&local_stack, NULL); + /* end of function */ + /* patch symbol size */ + ((ElfW(Sym) *)symtab_section->data)[sym->c].st_size = + ind - func_ind; + /* patch symbol weakness (this definition overrules any prototype) */ + if (sym->type.t & VT_WEAK) + weaken_symbol(sym); + apply_visibility(sym, &sym->type); + if (tcc_state->do_debug) { + put_stabn(N_FUN, 0, 0, ind - func_ind); + } + /* It's better to crash than to generate wrong code */ + cur_text_section = NULL; + funcname = ""; /* for safety */ + func_vt.t = VT_VOID; /* for safety */ + func_var = 0; /* for safety */ + ind = 0; /* for safety */ + nocode_wanted = saved_nocode_wanted; + check_vstack(); +} + +ST_FUNC void gen_inline_functions(void) +{ + Sym *sym; + int inline_generated, i, ln; + struct InlineFunc *fn; + + ln = file->line_num; + /* iterate while inline function are referenced */ + for(;;) { + inline_generated = 0; + for (i = 0; i < tcc_state->nb_inline_fns; ++i) { + fn = tcc_state->inline_fns[i]; + sym = fn->sym; + if (sym && sym->c) { + /* the function was used: generate its code and + convert it to a normal function */ + fn->sym = NULL; + if (file) + pstrcpy(file->filename, sizeof file->filename, fn->filename); + sym->r = VT_SYM | VT_CONST; + sym->type.t &= ~VT_INLINE; + + begin_macro(&fn->func_str, 0); + next(); + cur_text_section = text_section; + gen_function(sym); + end_macro(); + + inline_generated = 1; + } + } + if (!inline_generated) + break; + } + file->line_num = ln; + /* free tokens of unused inline functions */ + for (i = 0; i < tcc_state->nb_inline_fns; ++i) { + fn = tcc_state->inline_fns[i]; + if (fn->sym) + tok_str_free(fn->func_str.str); + } + dynarray_reset(&tcc_state->inline_fns, &tcc_state->nb_inline_fns); +} + +/* 'l' is VT_LOCAL or VT_CONST to define default storage type */ +static int decl0(int l, int is_for_loop_init) +{ + int v, has_init, r; + CType type, btype; + Sym *sym; + AttributeDef ad; + + while (1) { + if (!parse_btype(&btype, &ad)) { + if (is_for_loop_init) + return 0; + /* skip redundant ';' */ + /* XXX: find more elegant solution */ + if (tok == ';') { + next(); + continue; + } + if (l == VT_CONST && + (tok == TOK_ASM1 || tok == TOK_ASM2 || tok == TOK_ASM3)) { + /* global asm block */ + asm_global_instr(); + continue; + } + /* special test for old K&R protos without explicit int + type. Only accepted when defining global data */ + if (l == VT_LOCAL || tok < TOK_DEFINE) + break; + btype.t = VT_INT; + } + if (((btype.t & VT_BTYPE) == VT_ENUM || + (btype.t & VT_BTYPE) == VT_STRUCT) && + tok == ';') { + if ((btype.t & VT_BTYPE) == VT_STRUCT) { + int v = btype.ref->v; + if (!(v & SYM_FIELD) && (v & ~SYM_STRUCT) >= SYM_FIRST_ANOM) + tcc_warning("unnamed struct/union that defines no instances"); + } + next(); + continue; + } + while (1) { /* iterate thru each declaration */ + type = btype; + type_decl(&type, &ad, &v, TYPE_DIRECT); +#if 0 + { + char buf[500]; + type_to_str(buf, sizeof(buf), t, get_tok_str(v, NULL)); + printf("type = '%s'\n", buf); + } +#endif + if ((type.t & VT_BTYPE) == VT_FUNC) { + if ((type.t & VT_STATIC) && (l == VT_LOCAL)) { + tcc_error("function without file scope cannot be static"); + } + /* if old style function prototype, we accept a + declaration list */ + sym = type.ref; + if (sym->c == FUNC_OLD) + func_decl_list(sym); + } + + if (gnu_ext && (tok == TOK_ASM1 || tok == TOK_ASM2 || tok == TOK_ASM3)) { + ad.asm_label = asm_label_instr(); + /* parse one last attribute list, after asm label */ + parse_attribute(&ad); + if (tok == '{') + expect(";"); + } + + if (ad.a.weak) + type.t |= VT_WEAK; +#ifdef TCC_TARGET_PE + if (ad.a.func_import) + type.t |= VT_IMPORT; + if (ad.a.func_export) + type.t |= VT_EXPORT; +#endif + type.t |= ad.a.visibility << VT_VIS_SHIFT; + + if (tok == '{') { + if (l == VT_LOCAL) + tcc_error("cannot use local functions"); + if ((type.t & VT_BTYPE) != VT_FUNC) + expect("function definition"); + + /* reject abstract declarators in function definition */ + sym = type.ref; + while ((sym = sym->next) != NULL) + if (!(sym->v & ~SYM_FIELD)) + expect("identifier"); + + /* XXX: cannot do better now: convert extern line to static inline */ + if ((type.t & (VT_EXTERN | VT_INLINE)) == (VT_EXTERN | VT_INLINE)) + type.t = (type.t & ~VT_EXTERN) | VT_STATIC; + + sym = sym_find(v); + if (sym) { + Sym *ref; + if ((sym->type.t & VT_BTYPE) != VT_FUNC) + goto func_error1; + + ref = sym->type.ref; + if (0 == ref->a.func_proto) + tcc_error("redefinition of '%s'", get_tok_str(v, NULL)); + + /* use func_call from prototype if not defined */ + if (ref->a.func_call != FUNC_CDECL + && type.ref->a.func_call == FUNC_CDECL) + type.ref->a.func_call = ref->a.func_call; + + /* use export from prototype */ + if (ref->a.func_export) + type.ref->a.func_export = 1; + + /* use static from prototype */ + if (sym->type.t & VT_STATIC) + type.t = (type.t & ~VT_EXTERN) | VT_STATIC; + + /* If the definition has no visibility use the + one from prototype. */ + if (! (type.t & VT_VIS_MASK)) + type.t |= sym->type.t & VT_VIS_MASK; + + if (!is_compatible_types(&sym->type, &type)) { + func_error1: + tcc_error("incompatible types for redefinition of '%s'", + get_tok_str(v, NULL)); + } + type.ref->a.func_proto = 0; + /* if symbol is already defined, then put complete type */ + sym->type = type; + } else { + /* put function symbol */ + sym = global_identifier_push(v, type.t, 0); + sym->type.ref = type.ref; + } + + /* static inline functions are just recorded as a kind + of macro. Their code will be emitted at the end of + the compilation unit only if they are used */ + if ((type.t & (VT_INLINE | VT_STATIC)) == + (VT_INLINE | VT_STATIC)) { + int block_level; + struct InlineFunc *fn; + const char *filename; + + filename = file ? file->filename : ""; + fn = tcc_malloc(sizeof *fn + strlen(filename)); + strcpy(fn->filename, filename); + fn->sym = sym; + tok_str_new(&fn->func_str); + + block_level = 0; + for(;;) { + int t; + if (tok == TOK_EOF) + tcc_error("unexpected end of file"); + tok_str_add_tok(&fn->func_str); + t = tok; + next(); + if (t == '{') { + block_level++; + } else if (t == '}') { + block_level--; + if (block_level == 0) + break; + } + } + tok_str_add(&fn->func_str, -1); + tok_str_add(&fn->func_str, 0); + dynarray_add((void ***)&tcc_state->inline_fns, &tcc_state->nb_inline_fns, fn); + + } else { + /* compute text section */ + cur_text_section = ad.section; + if (!cur_text_section) + cur_text_section = text_section; + sym->r = VT_SYM | VT_CONST; + gen_function(sym); + } + break; + } else { + if (btype.t & VT_TYPEDEF) { + /* save typedefed type */ + /* XXX: test storage specifiers ? */ + sym = sym_push(v, &type, 0, 0); + sym->a = ad.a; + sym->type.t |= VT_TYPEDEF; + } else { + r = 0; + if ((type.t & VT_BTYPE) == VT_FUNC) { + /* external function definition */ + /* specific case for func_call attribute */ + ad.a.func_proto = 1; + type.ref->a = ad.a; + } else if (!(type.t & VT_ARRAY)) { + /* not lvalue if array */ + r |= lvalue_type(type.t); + } + has_init = (tok == '='); + if (has_init && (type.t & VT_VLA)) + tcc_error("Variable length array cannot be initialized"); + if ((btype.t & VT_EXTERN) || ((type.t & VT_BTYPE) == VT_FUNC) || + ((type.t & VT_ARRAY) && (type.t & VT_STATIC) && + !has_init && l == VT_CONST && type.ref->c < 0)) { + /* external variable or function */ + /* NOTE: as GCC, uninitialized global static + arrays of null size are considered as + extern */ + sym = external_sym(v, &type, r); + sym->asm_label = ad.asm_label; + + if (ad.alias_target) { + Section tsec; + Elf32_Sym *esym; + Sym *alias_target; + + alias_target = sym_find(ad.alias_target); + if (!alias_target || !alias_target->c) + tcc_error("unsupported forward __alias__ attribute"); + esym = &((Elf32_Sym *)symtab_section->data)[alias_target->c]; + tsec.sh_num = esym->st_shndx; + put_extern_sym2(sym, &tsec, esym->st_value, esym->st_size, 0); + } + } else { + type.t |= (btype.t & VT_STATIC); /* Retain "static". */ + if (type.t & VT_STATIC) + r |= VT_CONST; + else + r |= l; + if (has_init) + next(); + decl_initializer_alloc(&type, &ad, r, has_init, v, l); + } + } + if (tok != ',') { + if (is_for_loop_init) + return 1; + skip(';'); + break; + } + next(); + } + ad.a.aligned = 0; + } + } + return 0; +} + +ST_FUNC void decl(int l) +{ + decl0(l, 0); +} diff --git a/external/TCC/tcclib.h b/external/TCC/tcclib.h new file mode 100644 index 00000000..8d59e4c9 --- /dev/null +++ b/external/TCC/tcclib.h @@ -0,0 +1,80 @@ +/* Simple libc header for TCC + * + * Add any function you want from the libc there. This file is here + * only for your convenience so that you do not need to put the whole + * glibc include files on your floppy disk + */ +#ifndef _TCCLIB_H +#define _TCCLIB_H + +#include +#include + +/* stdlib.h */ +void *calloc(size_t nmemb, size_t size); +void *malloc(size_t size); +void free(void *ptr); +void *realloc(void *ptr, size_t size); +int atoi(const char *nptr); +long int strtol(const char *nptr, char **endptr, int base); +unsigned long int strtoul(const char *nptr, char **endptr, int base); +void exit(int); + +/* stdio.h */ +typedef struct __FILE FILE; +#define EOF (-1) +extern FILE *stdin; +extern FILE *stdout; +extern FILE *stderr; +FILE *fopen(const char *path, const char *mode); +FILE *fdopen(int fildes, const char *mode); +FILE *freopen(const char *path, const char *mode, FILE *stream); +int fclose(FILE *stream); +size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream); +size_t fwrite(void *ptr, size_t size, size_t nmemb, FILE *stream); +int fgetc(FILE *stream); +char *fgets(char *s, int size, FILE *stream); +int getc(FILE *stream); +int getchar(void); +char *gets(char *s); +int ungetc(int c, FILE *stream); +int fflush(FILE *stream); +int putchar (int c); + +int printf(const char *format, ...); +int fprintf(FILE *stream, const char *format, ...); +int sprintf(char *str, const char *format, ...); +int snprintf(char *str, size_t size, const char *format, ...); +int asprintf(char **strp, const char *format, ...); +int dprintf(int fd, const char *format, ...); +int vprintf(const char *format, va_list ap); +int vfprintf(FILE *stream, const char *format, va_list ap); +int vsprintf(char *str, const char *format, va_list ap); +int vsnprintf(char *str, size_t size, const char *format, va_list ap); +int vasprintf(char **strp, const char *format, va_list ap); +int vdprintf(int fd, const char *format, va_list ap); + +void perror(const char *s); + +/* string.h */ +char *strcat(char *dest, const char *src); +char *strchr(const char *s, int c); +char *strrchr(const char *s, int c); +char *strcpy(char *dest, const char *src); +void *memcpy(void *dest, const void *src, size_t n); +void *memmove(void *dest, const void *src, size_t n); +void *memset(void *s, int c, size_t n); +char *strdup(const char *s); +size_t strlen(const char *s); + +/* dlfcn.h */ +#define RTLD_LAZY 0x001 +#define RTLD_NOW 0x002 +#define RTLD_GLOBAL 0x100 + +void *dlopen(const char *filename, int flag); +const char *dlerror(void); +void *dlsym(void *handle, char *symbol); +int dlclose(void *handle); + +#endif /* _TCCLIB_H */ diff --git a/external/TCC/tccpe.c b/external/TCC/tccpe.c new file mode 100644 index 00000000..eb13d2df --- /dev/null +++ b/external/TCC/tccpe.c @@ -0,0 +1,1890 @@ +/* + * TCCPE.C - PE file output for the Tiny C Compiler + * + * Copyright (c) 2005-2007 grischka + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" + +#ifndef _WIN32 +#define stricmp strcasecmp +#define strnicmp strncasecmp +#endif + +#ifndef MAX_PATH +#define MAX_PATH 260 +#endif + +#define PE_MERGE_DATA +/* #define PE_PRINT_SECTIONS */ + +#ifdef TCC_TARGET_X86_64 +# define ADDR3264 ULONGLONG +# define REL_TYPE_DIRECT R_X86_64_64 +# define R_XXX_THUNKFIX R_X86_64_PC32 +# define R_XXX_RELATIVE R_X86_64_RELATIVE +# define IMAGE_FILE_MACHINE 0x8664 +# define RSRC_RELTYPE 3 + +#elif defined TCC_TARGET_ARM +# define ADDR3264 DWORD +# define REL_TYPE_DIRECT R_ARM_ABS32 +# define R_XXX_THUNKFIX R_ARM_ABS32 +# define R_XXX_RELATIVE R_ARM_RELATIVE +# define IMAGE_FILE_MACHINE 0x01C0 +# define RSRC_RELTYPE 7 /* ??? (not tested) */ + +#elif defined TCC_TARGET_I386 +# define ADDR3264 DWORD +# define REL_TYPE_DIRECT R_386_32 +# define R_XXX_THUNKFIX R_386_32 +# define R_XXX_RELATIVE R_386_RELATIVE +# define IMAGE_FILE_MACHINE 0x014C +# define RSRC_RELTYPE 7 /* DIR32NB */ + +#endif + +#ifdef _WIN32 +void dbg_printf (const char *fmt, ...) +{ + char buffer[4000]; + va_list arg; + int x; + va_start(arg, fmt); + x = vsprintf (buffer, fmt, arg); + strcpy(buffer+x, "\n"); + OutputDebugString(buffer); +} +#endif + +/* ----------------------------------------------------------- */ +#ifndef IMAGE_NT_SIGNATURE +/* ----------------------------------------------------------- */ +/* definitions below are from winnt.h */ + +typedef unsigned char BYTE; +typedef unsigned short WORD; +typedef unsigned int DWORD; +typedef unsigned long long ULONGLONG; +#pragma pack(push, 1) + +typedef struct _IMAGE_DOS_HEADER { /* DOS .EXE header */ + WORD e_magic; /* Magic number */ + WORD e_cblp; /* Bytes on last page of file */ + WORD e_cp; /* Pages in file */ + WORD e_crlc; /* Relocations */ + WORD e_cparhdr; /* Size of header in paragraphs */ + WORD e_minalloc; /* Minimum extra paragraphs needed */ + WORD e_maxalloc; /* Maximum extra paragraphs needed */ + WORD e_ss; /* Initial (relative) SS value */ + WORD e_sp; /* Initial SP value */ + WORD e_csum; /* Checksum */ + WORD e_ip; /* Initial IP value */ + WORD e_cs; /* Initial (relative) CS value */ + WORD e_lfarlc; /* File address of relocation table */ + WORD e_ovno; /* Overlay number */ + WORD e_res[4]; /* Reserved words */ + WORD e_oemid; /* OEM identifier (for e_oeminfo) */ + WORD e_oeminfo; /* OEM information; e_oemid specific */ + WORD e_res2[10]; /* Reserved words */ + DWORD e_lfanew; /* File address of new exe header */ +} IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER; + +#define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */ +#define SIZE_OF_NT_SIGNATURE 4 + +typedef struct _IMAGE_FILE_HEADER { + WORD Machine; + WORD NumberOfSections; + DWORD TimeDateStamp; + DWORD PointerToSymbolTable; + DWORD NumberOfSymbols; + WORD SizeOfOptionalHeader; + WORD Characteristics; +} IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER; + + +#define IMAGE_SIZEOF_FILE_HEADER 20 + +typedef struct _IMAGE_DATA_DIRECTORY { + DWORD VirtualAddress; + DWORD Size; +} IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY; + + +typedef struct _IMAGE_OPTIONAL_HEADER { + /* Standard fields. */ + WORD Magic; + BYTE MajorLinkerVersion; + BYTE MinorLinkerVersion; + DWORD SizeOfCode; + DWORD SizeOfInitializedData; + DWORD SizeOfUninitializedData; + DWORD AddressOfEntryPoint; + DWORD BaseOfCode; +#ifndef TCC_TARGET_X86_64 + DWORD BaseOfData; +#endif + /* NT additional fields. */ + ADDR3264 ImageBase; + DWORD SectionAlignment; + DWORD FileAlignment; + WORD MajorOperatingSystemVersion; + WORD MinorOperatingSystemVersion; + WORD MajorImageVersion; + WORD MinorImageVersion; + WORD MajorSubsystemVersion; + WORD MinorSubsystemVersion; + DWORD Win32VersionValue; + DWORD SizeOfImage; + DWORD SizeOfHeaders; + DWORD CheckSum; + WORD Subsystem; + WORD DllCharacteristics; + ADDR3264 SizeOfStackReserve; + ADDR3264 SizeOfStackCommit; + ADDR3264 SizeOfHeapReserve; + ADDR3264 SizeOfHeapCommit; + DWORD LoaderFlags; + DWORD NumberOfRvaAndSizes; + IMAGE_DATA_DIRECTORY DataDirectory[16]; +} IMAGE_OPTIONAL_HEADER32, IMAGE_OPTIONAL_HEADER64, IMAGE_OPTIONAL_HEADER; + +#define IMAGE_DIRECTORY_ENTRY_EXPORT 0 /* Export Directory */ +#define IMAGE_DIRECTORY_ENTRY_IMPORT 1 /* Import Directory */ +#define IMAGE_DIRECTORY_ENTRY_RESOURCE 2 /* Resource Directory */ +#define IMAGE_DIRECTORY_ENTRY_EXCEPTION 3 /* Exception Directory */ +#define IMAGE_DIRECTORY_ENTRY_SECURITY 4 /* Security Directory */ +#define IMAGE_DIRECTORY_ENTRY_BASERELOC 5 /* Base Relocation Table */ +#define IMAGE_DIRECTORY_ENTRY_DEBUG 6 /* Debug Directory */ +/* IMAGE_DIRECTORY_ENTRY_COPYRIGHT 7 (X86 usage) */ +#define IMAGE_DIRECTORY_ENTRY_ARCHITECTURE 7 /* Architecture Specific Data */ +#define IMAGE_DIRECTORY_ENTRY_GLOBALPTR 8 /* RVA of GP */ +#define IMAGE_DIRECTORY_ENTRY_TLS 9 /* TLS Directory */ +#define IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG 10 /* Load Configuration Directory */ +#define IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT 11 /* Bound Import Directory in headers */ +#define IMAGE_DIRECTORY_ENTRY_IAT 12 /* Import Address Table */ +#define IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT 13 /* Delay Load Import Descriptors */ +#define IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR 14 /* COM Runtime descriptor */ + +/* Section header format. */ +#define IMAGE_SIZEOF_SHORT_NAME 8 + +typedef struct _IMAGE_SECTION_HEADER { + BYTE Name[IMAGE_SIZEOF_SHORT_NAME]; + union { + DWORD PhysicalAddress; + DWORD VirtualSize; + } Misc; + DWORD VirtualAddress; + DWORD SizeOfRawData; + DWORD PointerToRawData; + DWORD PointerToRelocations; + DWORD PointerToLinenumbers; + WORD NumberOfRelocations; + WORD NumberOfLinenumbers; + DWORD Characteristics; +} IMAGE_SECTION_HEADER, *PIMAGE_SECTION_HEADER; + +#define IMAGE_SIZEOF_SECTION_HEADER 40 + +typedef struct _IMAGE_EXPORT_DIRECTORY { + DWORD Characteristics; + DWORD TimeDateStamp; + WORD MajorVersion; + WORD MinorVersion; + DWORD Name; + DWORD Base; + DWORD NumberOfFunctions; + DWORD NumberOfNames; + DWORD AddressOfFunctions; + DWORD AddressOfNames; + DWORD AddressOfNameOrdinals; +} IMAGE_EXPORT_DIRECTORY,*PIMAGE_EXPORT_DIRECTORY; + +typedef struct _IMAGE_IMPORT_DESCRIPTOR { + union { + DWORD Characteristics; + DWORD OriginalFirstThunk; + }; + DWORD TimeDateStamp; + DWORD ForwarderChain; + DWORD Name; + DWORD FirstThunk; +} IMAGE_IMPORT_DESCRIPTOR; + +typedef struct _IMAGE_BASE_RELOCATION { + DWORD VirtualAddress; + DWORD SizeOfBlock; +// WORD TypeOffset[1]; +} IMAGE_BASE_RELOCATION; + +#define IMAGE_SIZEOF_BASE_RELOCATION 8 + +#define IMAGE_REL_BASED_ABSOLUTE 0 +#define IMAGE_REL_BASED_HIGH 1 +#define IMAGE_REL_BASED_LOW 2 +#define IMAGE_REL_BASED_HIGHLOW 3 +#define IMAGE_REL_BASED_HIGHADJ 4 +#define IMAGE_REL_BASED_MIPS_JMPADDR 5 +#define IMAGE_REL_BASED_SECTION 6 +#define IMAGE_REL_BASED_REL32 7 + +#pragma pack(pop) + +/* ----------------------------------------------------------- */ +#endif /* ndef IMAGE_NT_SIGNATURE */ +/* ----------------------------------------------------------- */ +#pragma pack(push, 1) + +struct pe_header +{ + IMAGE_DOS_HEADER doshdr; + BYTE dosstub[0x40]; + DWORD nt_sig; + IMAGE_FILE_HEADER filehdr; +#ifdef TCC_TARGET_X86_64 + IMAGE_OPTIONAL_HEADER64 opthdr; +#else +#ifdef _WIN64 + IMAGE_OPTIONAL_HEADER32 opthdr; +#else + IMAGE_OPTIONAL_HEADER opthdr; +#endif +#endif +}; + +struct pe_reloc_header { + DWORD offset; + DWORD size; +}; + +struct pe_rsrc_header { + struct _IMAGE_FILE_HEADER filehdr; + struct _IMAGE_SECTION_HEADER sectionhdr; +}; + +struct pe_rsrc_reloc { + DWORD offset; + DWORD size; + WORD type; +}; + +#pragma pack(pop) + +/* ------------------------------------------------------------- */ +/* internal temporary structures */ + +/* +#define IMAGE_SCN_CNT_CODE 0x00000020 +#define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 +#define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 +#define IMAGE_SCN_MEM_DISCARDABLE 0x02000000 +#define IMAGE_SCN_MEM_SHARED 0x10000000 +#define IMAGE_SCN_MEM_EXECUTE 0x20000000 +#define IMAGE_SCN_MEM_READ 0x40000000 +#define IMAGE_SCN_MEM_WRITE 0x80000000 +*/ + +enum { + sec_text = 0, + sec_data , + sec_bss , + sec_idata , + sec_pdata , + sec_other , + sec_rsrc , + sec_stab , + sec_reloc , + sec_last +}; + +static const DWORD pe_sec_flags[] = { + 0x60000020, /* ".text" , */ + 0xC0000040, /* ".data" , */ + 0xC0000080, /* ".bss" , */ + 0x40000040, /* ".idata" , */ + 0x40000040, /* ".pdata" , */ + 0xE0000060, /* < other > , */ + 0x40000040, /* ".rsrc" , */ + 0x42000802, /* ".stab" , */ + 0x42000040, /* ".reloc" , */ +}; + +struct section_info { + int cls, ord; + char name[32]; + DWORD sh_addr; + DWORD sh_size; + DWORD sh_flags; + unsigned char *data; + DWORD data_size; + IMAGE_SECTION_HEADER ish; +}; + +struct import_symbol { + int sym_index; + int iat_index; + int thk_offset; +}; + +struct pe_import_info { + int dll_index; + int sym_count; + struct import_symbol **symbols; +}; + +struct pe_info { + TCCState *s1; + Section *reloc; + Section *thunk; + const char *filename; + int type; + DWORD sizeofheaders; + ADDR3264 imagebase; + DWORD start_addr; + DWORD imp_offs; + DWORD imp_size; + DWORD iat_offs; + DWORD iat_size; + DWORD exp_offs; + DWORD exp_size; + int subsystem; + DWORD section_align; + DWORD file_align; + struct section_info *sec_info; + int sec_count; + struct pe_import_info **imp_info; + int imp_count; +}; + +#define PE_NUL 0 +#define PE_DLL 1 +#define PE_GUI 2 +#define PE_EXE 3 +#define PE_RUN 4 + +/* --------------------------------------------*/ + +static const char *pe_export_name(TCCState *s1, ElfW(Sym) *sym) +{ + const char *name = symtab_section->link->data + sym->st_name; + if (s1->leading_underscore && name[0] == '_' && !(sym->st_other & ST_PE_STDCALL)) + return name + 1; + return name; +} + +static int pe_find_import(TCCState * s1, ElfW(Sym) *sym) +{ + char buffer[200]; + const char *s, *p; + int sym_index = 0, n = 0; + + do { + s = pe_export_name(s1, sym); + if (n) { + /* second try: */ + if (sym->st_other & ST_PE_STDCALL) { + /* try w/0 stdcall deco (windows API convention) */ + p = strrchr(s, '@'); + if (!p || s[0] != '_') + break; + strcpy(buffer, s+1)[p-s-1] = 0; + } else if (s[0] != '_') { /* try non-ansi function */ + buffer[0] = '_', strcpy(buffer + 1, s); + } else if (0 == memcmp(s, "__imp__", 7)) { /* mingw 2.0 */ + strcpy(buffer, s + 6); + } else if (0 == memcmp(s, "_imp___", 7)) { /* mingw 3.7 */ + strcpy(buffer, s + 6); + } else { + break; + } + s = buffer; + } + sym_index = find_elf_sym(s1->dynsymtab_section, s); + // printf("find (%d) %d %s\n", n, sym_index, s); + } while (0 == sym_index && ++n < 2); + return sym_index; +} + +/*----------------------------------------------------------------------------*/ + +static int dynarray_assoc(void **pp, int n, int key) +{ + int i; + for (i = 0; i < n; ++i, ++pp) + if (key == **(int **) pp) + return i; + return -1; +} + +#if 0 +ST_FN DWORD umin(DWORD a, DWORD b) +{ + return a < b ? a : b; +} +#endif + +static DWORD umax(DWORD a, DWORD b) +{ + return a < b ? b : a; +} + +static DWORD pe_file_align(struct pe_info *pe, DWORD n) +{ + return (n + (pe->file_align - 1)) & ~(pe->file_align - 1); +} + +static DWORD pe_virtual_align(struct pe_info *pe, DWORD n) +{ + return (n + (pe->section_align - 1)) & ~(pe->section_align - 1); +} + +static void pe_align_section(Section *s, int a) +{ + int i = s->data_offset & (a-1); + if (i) + section_ptr_add(s, a - i); +} + +static void pe_set_datadir(struct pe_header *hdr, int dir, DWORD addr, DWORD size) +{ + hdr->opthdr.DataDirectory[dir].VirtualAddress = addr; + hdr->opthdr.DataDirectory[dir].Size = size; +} + +static int pe_fwrite(void *data, unsigned len, FILE *fp, DWORD *psum) +{ + if (psum) { + DWORD sum = *psum; + WORD *p = data; + int i; + for (i = len; i > 0; i -= 2) { + sum += (i >= 2) ? *p++ : *(BYTE*)p; + sum = (sum + (sum >> 16)) & 0xFFFF; + } + *psum = sum; + } + return len == fwrite(data, 1, len, fp) ? 0 : -1; +} + +static void pe_fpad(FILE *fp, DWORD new_pos) +{ + DWORD pos = ftell(fp); + while (++pos <= new_pos) + fputc(0, fp); +} + +/*----------------------------------------------------------------------------*/ +static int pe_write(struct pe_info *pe) +{ + static const struct pe_header pe_template = { + { + /* IMAGE_DOS_HEADER doshdr */ + 0x5A4D, /*WORD e_magic; Magic number */ + 0x0090, /*WORD e_cblp; Bytes on last page of file */ + 0x0003, /*WORD e_cp; Pages in file */ + 0x0000, /*WORD e_crlc; Relocations */ + + 0x0004, /*WORD e_cparhdr; Size of header in paragraphs */ + 0x0000, /*WORD e_minalloc; Minimum extra paragraphs needed */ + 0xFFFF, /*WORD e_maxalloc; Maximum extra paragraphs needed */ + 0x0000, /*WORD e_ss; Initial (relative) SS value */ + + 0x00B8, /*WORD e_sp; Initial SP value */ + 0x0000, /*WORD e_csum; Checksum */ + 0x0000, /*WORD e_ip; Initial IP value */ + 0x0000, /*WORD e_cs; Initial (relative) CS value */ + 0x0040, /*WORD e_lfarlc; File address of relocation table */ + 0x0000, /*WORD e_ovno; Overlay number */ + {0,0,0,0}, /*WORD e_res[4]; Reserved words */ + 0x0000, /*WORD e_oemid; OEM identifier (for e_oeminfo) */ + 0x0000, /*WORD e_oeminfo; OEM information; e_oemid specific */ + {0,0,0,0,0,0,0,0,0,0}, /*WORD e_res2[10]; Reserved words */ + 0x00000080 /*DWORD e_lfanew; File address of new exe header */ + },{ + /* BYTE dosstub[0x40] */ + /* 14 code bytes + "This program cannot be run in DOS mode.\r\r\n$" + 6 * 0x00 */ + 0x0e,0x1f,0xba,0x0e,0x00,0xb4,0x09,0xcd,0x21,0xb8,0x01,0x4c,0xcd,0x21,0x54,0x68, + 0x69,0x73,0x20,0x70,0x72,0x6f,0x67,0x72,0x61,0x6d,0x20,0x63,0x61,0x6e,0x6e,0x6f, + 0x74,0x20,0x62,0x65,0x20,0x72,0x75,0x6e,0x20,0x69,0x6e,0x20,0x44,0x4f,0x53,0x20, + 0x6d,0x6f,0x64,0x65,0x2e,0x0d,0x0d,0x0a,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + }, + 0x00004550, /* DWORD nt_sig = IMAGE_NT_SIGNATURE */ + { + /* IMAGE_FILE_HEADER filehdr */ + IMAGE_FILE_MACHINE, /*WORD Machine; */ + 0x0003, /*WORD NumberOfSections; */ + 0x00000000, /*DWORD TimeDateStamp; */ + 0x00000000, /*DWORD PointerToSymbolTable; */ + 0x00000000, /*DWORD NumberOfSymbols; */ +#if defined(TCC_TARGET_X86_64) + 0x00F0, /*WORD SizeOfOptionalHeader; */ + 0x022F /*WORD Characteristics; */ +#define CHARACTERISTICS_DLL 0x222E +#elif defined(TCC_TARGET_I386) + 0x00E0, /*WORD SizeOfOptionalHeader; */ + 0x030F /*WORD Characteristics; */ +#define CHARACTERISTICS_DLL 0x230E +#elif defined(TCC_TARGET_ARM) + 0x00E0, /*WORD SizeOfOptionalHeader; */ + 0x010F, /*WORD Characteristics; */ +#define CHARACTERISTICS_DLL 0x230F +#endif +},{ + /* IMAGE_OPTIONAL_HEADER opthdr */ + /* Standard fields. */ +#ifdef TCC_TARGET_X86_64 + 0x020B, /*WORD Magic; */ +#else + 0x010B, /*WORD Magic; */ +#endif + 0x06, /*BYTE MajorLinkerVersion; */ + 0x00, /*BYTE MinorLinkerVersion; */ + 0x00000000, /*DWORD SizeOfCode; */ + 0x00000000, /*DWORD SizeOfInitializedData; */ + 0x00000000, /*DWORD SizeOfUninitializedData; */ + 0x00000000, /*DWORD AddressOfEntryPoint; */ + 0x00000000, /*DWORD BaseOfCode; */ +#ifndef TCC_TARGET_X86_64 + 0x00000000, /*DWORD BaseOfData; */ +#endif + /* NT additional fields. */ +#if defined(TCC_TARGET_ARM) + 0x00100000, /*DWORD ImageBase; */ +#else + 0x00400000, /*DWORD ImageBase; */ +#endif + 0x00001000, /*DWORD SectionAlignment; */ + 0x00000200, /*DWORD FileAlignment; */ + 0x0004, /*WORD MajorOperatingSystemVersion; */ + 0x0000, /*WORD MinorOperatingSystemVersion; */ + 0x0000, /*WORD MajorImageVersion; */ + 0x0000, /*WORD MinorImageVersion; */ + 0x0004, /*WORD MajorSubsystemVersion; */ + 0x0000, /*WORD MinorSubsystemVersion; */ + 0x00000000, /*DWORD Win32VersionValue; */ + 0x00000000, /*DWORD SizeOfImage; */ + 0x00000200, /*DWORD SizeOfHeaders; */ + 0x00000000, /*DWORD CheckSum; */ + 0x0002, /*WORD Subsystem; */ + 0x0000, /*WORD DllCharacteristics; */ + 0x00100000, /*DWORD SizeOfStackReserve; */ + 0x00001000, /*DWORD SizeOfStackCommit; */ + 0x00100000, /*DWORD SizeOfHeapReserve; */ + 0x00001000, /*DWORD SizeOfHeapCommit; */ + 0x00000000, /*DWORD LoaderFlags; */ + 0x00000010, /*DWORD NumberOfRvaAndSizes; */ + + /* IMAGE_DATA_DIRECTORY DataDirectory[16]; */ + {{0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, + {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}} + }}; + + struct pe_header pe_header = pe_template; + + int i; + FILE *op; + DWORD file_offset, sum; + struct section_info *si; + IMAGE_SECTION_HEADER *psh; + + op = fopen(pe->filename, "wb"); + if (NULL == op) { + tcc_error_noabort("could not write '%s': %s", pe->filename, strerror(errno)); + return -1; + } + + pe->sizeofheaders = pe_file_align(pe, + sizeof (struct pe_header) + + pe->sec_count * sizeof (IMAGE_SECTION_HEADER) + ); + + file_offset = pe->sizeofheaders; + + if (2 == pe->s1->verbose) + printf("-------------------------------" + "\n virt file size section" "\n"); + for (i = 0; i < pe->sec_count; ++i) { + DWORD addr, size; + const char *sh_name; + + si = pe->sec_info + i; + sh_name = si->name; + addr = si->sh_addr - pe->imagebase; + size = si->sh_size; + psh = &si->ish; + + if (2 == pe->s1->verbose) + printf("%6x %6x %6x %s\n", + (unsigned)addr, (unsigned)file_offset, (unsigned)size, sh_name); + + switch (si->cls) { + case sec_text: + pe_header.opthdr.BaseOfCode = addr; + pe_header.opthdr.AddressOfEntryPoint = addr + pe->start_addr; + break; + + case sec_data: +#ifndef TCC_TARGET_X86_64 + pe_header.opthdr.BaseOfData = addr; +#endif + break; + + case sec_bss: + break; + + case sec_reloc: + pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_BASERELOC, addr, size); + break; + + case sec_rsrc: + pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_RESOURCE, addr, size); + break; + + case sec_pdata: + pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_EXCEPTION, addr, size); + break; + + case sec_stab: + break; + } + + if (pe->thunk == pe->s1->sections[si->ord]) { + if (pe->imp_size) { + pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_IMPORT, + pe->imp_offs + addr, pe->imp_size); + pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_IAT, + pe->iat_offs + addr, pe->iat_size); + } + if (pe->exp_size) { + pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_EXPORT, + pe->exp_offs + addr, pe->exp_size); + } + } + + strncpy((char*)psh->Name, sh_name, sizeof psh->Name); + + psh->Characteristics = pe_sec_flags[si->cls]; + psh->VirtualAddress = addr; + psh->Misc.VirtualSize = size; + pe_header.opthdr.SizeOfImage = + umax(pe_virtual_align(pe, size + addr), pe_header.opthdr.SizeOfImage); + + if (si->data_size) { + psh->PointerToRawData = file_offset; + file_offset = pe_file_align(pe, file_offset + si->data_size); + psh->SizeOfRawData = file_offset - psh->PointerToRawData; + } + } + + //pe_header.filehdr.TimeDateStamp = time(NULL); + pe_header.filehdr.NumberOfSections = pe->sec_count; + pe_header.opthdr.SizeOfHeaders = pe->sizeofheaders; + pe_header.opthdr.ImageBase = pe->imagebase; + pe_header.opthdr.Subsystem = pe->subsystem; + if (pe->s1->pe_stack_size) + pe_header.opthdr.SizeOfStackReserve = pe->s1->pe_stack_size; + if (PE_DLL == pe->type) + pe_header.filehdr.Characteristics = CHARACTERISTICS_DLL; + + sum = 0; + pe_fwrite(&pe_header, sizeof pe_header, op, &sum); + for (i = 0; i < pe->sec_count; ++i) + pe_fwrite(&pe->sec_info[i].ish, sizeof(IMAGE_SECTION_HEADER), op, &sum); + pe_fpad(op, pe->sizeofheaders); + for (i = 0; i < pe->sec_count; ++i) { + si = pe->sec_info + i; + psh = &si->ish; + if (si->data_size) { + pe_fwrite(si->data, si->data_size, op, &sum); + file_offset = psh->PointerToRawData + psh->SizeOfRawData; + pe_fpad(op, file_offset); + } + } + + pe_header.opthdr.CheckSum = sum + file_offset; + fseek(op, offsetof(struct pe_header, opthdr.CheckSum), SEEK_SET); + pe_fwrite(&pe_header.opthdr.CheckSum, sizeof pe_header.opthdr.CheckSum, op, NULL); + fclose (op); + + if (2 == pe->s1->verbose) + printf("-------------------------------\n"); + if (pe->s1->verbose) + printf("<- %s (%u bytes)\n", pe->filename, (unsigned)file_offset); + + return 0; +} + +/*----------------------------------------------------------------------------*/ + +static struct import_symbol *pe_add_import(struct pe_info *pe, int sym_index) +{ + int i; + int dll_index; + struct pe_import_info *p; + struct import_symbol *s; + ElfW(Sym) *isym; + + isym = (ElfW(Sym) *)pe->s1->dynsymtab_section->data + sym_index; + dll_index = isym->st_size; + + i = dynarray_assoc ((void**)pe->imp_info, pe->imp_count, dll_index); + if (-1 != i) { + p = pe->imp_info[i]; + goto found_dll; + } + p = tcc_mallocz(sizeof *p); + p->dll_index = dll_index; + dynarray_add((void***)&pe->imp_info, &pe->imp_count, p); + +found_dll: + i = dynarray_assoc ((void**)p->symbols, p->sym_count, sym_index); + if (-1 != i) + return p->symbols[i]; + + s = tcc_mallocz(sizeof *s); + dynarray_add((void***)&p->symbols, &p->sym_count, s); + s->sym_index = sym_index; + return s; +} + +/*----------------------------------------------------------------------------*/ +static void pe_build_imports(struct pe_info *pe) +{ + int thk_ptr, ent_ptr, dll_ptr, sym_cnt, i; + DWORD rva_base = pe->thunk->sh_addr - pe->imagebase; + int ndlls = pe->imp_count; + + for (sym_cnt = i = 0; i < ndlls; ++i) + sym_cnt += pe->imp_info[i]->sym_count; + + if (0 == sym_cnt) + return; + + pe_align_section(pe->thunk, 16); + + pe->imp_offs = dll_ptr = pe->thunk->data_offset; + pe->imp_size = (ndlls + 1) * sizeof(IMAGE_IMPORT_DESCRIPTOR); + pe->iat_offs = dll_ptr + pe->imp_size; + pe->iat_size = (sym_cnt + ndlls) * sizeof(ADDR3264); + section_ptr_add(pe->thunk, pe->imp_size + 2*pe->iat_size); + + thk_ptr = pe->iat_offs; + ent_ptr = pe->iat_offs + pe->iat_size; + + for (i = 0; i < pe->imp_count; ++i) { + IMAGE_IMPORT_DESCRIPTOR *hdr; + int k, n, dllindex; + ADDR3264 v; + struct pe_import_info *p = pe->imp_info[i]; + const char *name; + DLLReference *dllref; + + dllindex = p->dll_index; + if (dllindex) + name = (dllref = pe->s1->loaded_dlls[dllindex-1])->name; + else + name = "", dllref = NULL; + + /* put the dll name into the import header */ + v = put_elf_str(pe->thunk, name); + hdr = (IMAGE_IMPORT_DESCRIPTOR*)(pe->thunk->data + dll_ptr); + hdr->FirstThunk = thk_ptr + rva_base; + hdr->OriginalFirstThunk = ent_ptr + rva_base; + hdr->Name = v + rva_base; + + for (k = 0, n = p->sym_count; k <= n; ++k) { + if (k < n) { + int iat_index = p->symbols[k]->iat_index; + int sym_index = p->symbols[k]->sym_index; + ElfW(Sym) *imp_sym = (ElfW(Sym) *)pe->s1->dynsymtab_section->data + sym_index; + ElfW(Sym) *org_sym = (ElfW(Sym) *)symtab_section->data + iat_index; + const char *name = pe->s1->dynsymtab_section->link->data + imp_sym->st_name; + int ordinal; + + org_sym->st_value = thk_ptr; + org_sym->st_shndx = pe->thunk->sh_num; + + if (dllref) + v = 0, ordinal = imp_sym->st_value; /* ordinal from pe_load_def */ + else + ordinal = 0, v = imp_sym->st_value; /* address from tcc_add_symbol() */ + +#ifdef TCC_IS_NATIVE + if (pe->type == PE_RUN) { + if (dllref) { + if ( !dllref->handle ) + dllref->handle = LoadLibrary(dllref->name); + v = (ADDR3264)GetProcAddress(dllref->handle, ordinal?(LPCSTR)NULL+ordinal:name); + } + if (!v) + tcc_error_noabort("can't build symbol '%s'", name); + } else +#endif + if (ordinal) { + v = ordinal | (ADDR3264)1 << (sizeof(ADDR3264)*8 - 1); + } else { + v = pe->thunk->data_offset + rva_base; + section_ptr_add(pe->thunk, sizeof(WORD)); /* hint, not used */ + put_elf_str(pe->thunk, name); + } + + } else { + v = 0; /* last entry is zero */ + } + + *(ADDR3264*)(pe->thunk->data+thk_ptr) = + *(ADDR3264*)(pe->thunk->data+ent_ptr) = v; + thk_ptr += sizeof (ADDR3264); + ent_ptr += sizeof (ADDR3264); + } + dll_ptr += sizeof(IMAGE_IMPORT_DESCRIPTOR); + dynarray_reset(&p->symbols, &p->sym_count); + } + dynarray_reset(&pe->imp_info, &pe->imp_count); +} + +/* ------------------------------------------------------------- */ + +struct pe_sort_sym +{ + int index; + const char *name; +}; + +static int sym_cmp(const void *va, const void *vb) +{ + const char *ca = (*(struct pe_sort_sym**)va)->name; + const char *cb = (*(struct pe_sort_sym**)vb)->name; + return strcmp(ca, cb); +} + +static void pe_build_exports(struct pe_info *pe) +{ + ElfW(Sym) *sym; + int sym_index, sym_end; + DWORD rva_base, func_o, name_o, ord_o, str_o; + IMAGE_EXPORT_DIRECTORY *hdr; + int sym_count, ord; + struct pe_sort_sym **sorted, *p; + + FILE *op; + char buf[MAX_PATH]; + const char *dllname; + const char *name; + + rva_base = pe->thunk->sh_addr - pe->imagebase; + sym_count = 0, sorted = NULL, op = NULL; + + sym_end = symtab_section->data_offset / sizeof(ElfW(Sym)); + for (sym_index = 1; sym_index < sym_end; ++sym_index) { + sym = (ElfW(Sym)*)symtab_section->data + sym_index; + name = pe_export_name(pe->s1, sym); + if ((sym->st_other & ST_PE_EXPORT) + /* export only symbols from actually written sections */ + && pe->s1->sections[sym->st_shndx]->sh_addr) { + p = tcc_malloc(sizeof *p); + p->index = sym_index; + p->name = name; + dynarray_add((void***)&sorted, &sym_count, p); + } +#if 0 + if (sym->st_other & ST_PE_EXPORT) + printf("export: %s\n", name); + if (sym->st_other & ST_PE_STDCALL) + printf("stdcall: %s\n", name); +#endif + } + + if (0 == sym_count) + return; + + qsort (sorted, sym_count, sizeof *sorted, sym_cmp); + + pe_align_section(pe->thunk, 16); + dllname = tcc_basename(pe->filename); + + pe->exp_offs = pe->thunk->data_offset; + func_o = pe->exp_offs + sizeof(IMAGE_EXPORT_DIRECTORY); + name_o = func_o + sym_count * sizeof (DWORD); + ord_o = name_o + sym_count * sizeof (DWORD); + str_o = ord_o + sym_count * sizeof(WORD); + + hdr = section_ptr_add(pe->thunk, str_o - pe->exp_offs); + hdr->Characteristics = 0; + hdr->Base = 1; + hdr->NumberOfFunctions = sym_count; + hdr->NumberOfNames = sym_count; + hdr->AddressOfFunctions = func_o + rva_base; + hdr->AddressOfNames = name_o + rva_base; + hdr->AddressOfNameOrdinals = ord_o + rva_base; + hdr->Name = str_o + rva_base; + put_elf_str(pe->thunk, dllname); + +#if 1 + /* automatically write exports to .def */ + pstrcpy(buf, sizeof buf, pe->filename); + strcpy(tcc_fileextension(buf), ".def"); + op = fopen(buf, "w"); + if (NULL == op) { + tcc_error_noabort("could not create '%s': %s", buf, strerror(errno)); + } else { + fprintf(op, "LIBRARY %s\n\nEXPORTS\n", dllname); + if (pe->s1->verbose) + printf("<- %s (%d symbols)\n", buf, sym_count); + } +#endif + + for (ord = 0; ord < sym_count; ++ord) + { + p = sorted[ord], sym_index = p->index, name = p->name; + /* insert actual address later in pe_relocate_rva */ + put_elf_reloc(symtab_section, pe->thunk, + func_o, R_XXX_RELATIVE, sym_index); + *(DWORD*)(pe->thunk->data + name_o) + = pe->thunk->data_offset + rva_base; + *(WORD*)(pe->thunk->data + ord_o) + = ord; + put_elf_str(pe->thunk, name); + func_o += sizeof (DWORD); + name_o += sizeof (DWORD); + ord_o += sizeof (WORD); + if (op) + fprintf(op, "%s\n", name); + } + pe->exp_size = pe->thunk->data_offset - pe->exp_offs; + dynarray_reset(&sorted, &sym_count); + if (op) + fclose(op); +} + +/* ------------------------------------------------------------- */ +static void pe_build_reloc (struct pe_info *pe) +{ + DWORD offset, block_ptr, addr; + int count, i; + ElfW_Rel *rel, *rel_end; + Section *s = NULL, *sr; + + offset = addr = block_ptr = count = i = 0; + rel = rel_end = NULL; + + for(;;) { + if (rel < rel_end) { + int type = ELFW(R_TYPE)(rel->r_info); + addr = rel->r_offset + s->sh_addr; + ++ rel; + if (type != REL_TYPE_DIRECT) + continue; + if (count == 0) { /* new block */ + block_ptr = pe->reloc->data_offset; + section_ptr_add(pe->reloc, sizeof(struct pe_reloc_header)); + offset = addr & 0xFFFFFFFF<<12; + } + if ((addr -= offset) < (1<<12)) { /* one block spans 4k addresses */ + WORD *wp = section_ptr_add(pe->reloc, sizeof (WORD)); + *wp = addr | IMAGE_REL_BASED_HIGHLOW<<12; + ++count; + continue; + } + -- rel; + + } else if (i < pe->sec_count) { + sr = (s = pe->s1->sections[pe->sec_info[i++].ord])->reloc; + if (sr) { + rel = (ElfW_Rel *)sr->data; + rel_end = (ElfW_Rel *)(sr->data + sr->data_offset); + } + continue; + } + + if (count) { + /* store the last block and ready for a new one */ + struct pe_reloc_header *hdr; + if (count & 1) /* align for DWORDS */ + section_ptr_add(pe->reloc, sizeof(WORD)), ++count; + hdr = (struct pe_reloc_header *)(pe->reloc->data + block_ptr); + hdr -> offset = offset - pe->imagebase; + hdr -> size = count * sizeof(WORD) + sizeof(struct pe_reloc_header); + count = 0; + } + + if (rel >= rel_end) + break; + } +} + +/* ------------------------------------------------------------- */ +static int pe_section_class(Section *s) +{ + int type, flags; + const char *name; + + type = s->sh_type; + flags = s->sh_flags; + name = s->name; + if (flags & SHF_ALLOC) { + if (type == SHT_PROGBITS) { + if (flags & SHF_EXECINSTR) + return sec_text; + if (flags & SHF_WRITE) + return sec_data; + if (0 == strcmp(name, ".rsrc")) + return sec_rsrc; + if (0 == strcmp(name, ".iedat")) + return sec_idata; + if (0 == strcmp(name, ".pdata")) + return sec_pdata; + return sec_other; + } else if (type == SHT_NOBITS) { + if (flags & SHF_WRITE) + return sec_bss; + } + } else { + if (0 == strcmp(name, ".reloc")) + return sec_reloc; + if (0 == strncmp(name, ".stab", 5)) /* .stab and .stabstr */ + return sec_stab; + } + return -1; +} + +static int pe_assign_addresses (struct pe_info *pe) +{ + int i, k, o, c; + DWORD addr; + int *section_order; + struct section_info *si; + Section *s; + + // pe->thunk = new_section(pe->s1, ".iedat", SHT_PROGBITS, SHF_ALLOC); + + section_order = tcc_malloc(pe->s1->nb_sections * sizeof (int)); + for (o = k = 0 ; k < sec_last; ++k) { + for (i = 1; i < pe->s1->nb_sections; ++i) { + s = pe->s1->sections[i]; + if (k == pe_section_class(s)) { + // printf("%s %d\n", s->name, k); + s->sh_addr = pe->imagebase; + section_order[o++] = i; + } + } + } + + pe->sec_info = tcc_mallocz(o * sizeof (struct section_info)); + addr = pe->imagebase + 1; + + for (i = 0; i < o; ++i) + { + k = section_order[i]; + s = pe->s1->sections[k]; + c = pe_section_class(s); + si = &pe->sec_info[pe->sec_count]; + +#ifdef PE_MERGE_DATA + if (c == sec_bss && pe->sec_count && si[-1].cls == sec_data) { + /* append .bss to .data */ + s->sh_addr = addr = ((addr-1) | (s->sh_addralign-1)) + 1; + addr += s->data_offset; + si[-1].sh_size = addr - si[-1].sh_addr; + continue; + } +#endif + if (c == sec_stab && 0 == pe->s1->do_debug) + continue; + + strcpy(si->name, s->name); + si->cls = c; + si->ord = k; + si->sh_addr = s->sh_addr = addr = pe_virtual_align(pe, addr); + si->sh_flags = s->sh_flags; + + if (c == sec_data && NULL == pe->thunk) + pe->thunk = s; + + if (s == pe->thunk) { + pe_build_imports(pe); + pe_build_exports(pe); + } + + if (c == sec_reloc) + pe_build_reloc (pe); + + if (s->data_offset) + { + if (s->sh_type != SHT_NOBITS) { + si->data = s->data; + si->data_size = s->data_offset; + } + + addr += s->data_offset; + si->sh_size = s->data_offset; + ++pe->sec_count; + } + // printf("%08x %05x %s\n", si->sh_addr, si->sh_size, si->name); + } + +#if 0 + for (i = 1; i < pe->s1->nb_sections; ++i) { + Section *s = pe->s1->sections[i]; + int type = s->sh_type; + int flags = s->sh_flags; + printf("section %-16s %-10s %5x %s,%s,%s\n", + s->name, + type == SHT_PROGBITS ? "progbits" : + type == SHT_NOBITS ? "nobits" : + type == SHT_SYMTAB ? "symtab" : + type == SHT_STRTAB ? "strtab" : + type == SHT_RELX ? "rel" : "???", + s->data_offset, + flags & SHF_ALLOC ? "alloc" : "", + flags & SHF_WRITE ? "write" : "", + flags & SHF_EXECINSTR ? "exec" : "" + ); + } + pe->s1->verbose = 2; +#endif + + tcc_free(section_order); + return 0; +} + +/* ------------------------------------------------------------- */ +static void pe_relocate_rva (struct pe_info *pe, Section *s) +{ + Section *sr = s->reloc; + ElfW_Rel *rel, *rel_end; + rel_end = (ElfW_Rel *)(sr->data + sr->data_offset); + for(rel = (ElfW_Rel *)sr->data; rel < rel_end; rel++) { + if (ELFW(R_TYPE)(rel->r_info) == R_XXX_RELATIVE) { + int sym_index = ELFW(R_SYM)(rel->r_info); + DWORD addr = s->sh_addr; + if (sym_index) { + ElfW(Sym) *sym = (ElfW(Sym) *)symtab_section->data + sym_index; + addr = sym->st_value; + } + // printf("reloc rva %08x %08x %s\n", (DWORD)rel->r_offset, addr, s->name); + *(DWORD*)(s->data + rel->r_offset) += addr - pe->imagebase; + } + } +} + +/*----------------------------------------------------------------------------*/ + +static int pe_isafunc(int sym_index) +{ + Section *sr = text_section->reloc; + ElfW_Rel *rel, *rel_end; + Elf32_Word info = ELF32_R_INFO(sym_index, R_386_PC32); + if (!sr) + return 0; + rel_end = (ElfW_Rel *)(sr->data + sr->data_offset); + for (rel = (ElfW_Rel *)sr->data; rel < rel_end; rel++) + if (rel->r_info == info) + return 1; + return 0; +} + +/*----------------------------------------------------------------------------*/ +static int pe_check_symbols(struct pe_info *pe) +{ + ElfW(Sym) *sym; + int sym_index, sym_end; + int ret = 0; + + pe_align_section(text_section, 8); + + sym_end = symtab_section->data_offset / sizeof(ElfW(Sym)); + for (sym_index = 1; sym_index < sym_end; ++sym_index) { + + sym = (ElfW(Sym) *)symtab_section->data + sym_index; + if (sym->st_shndx == SHN_UNDEF) { + + const char *name = symtab_section->link->data + sym->st_name; + unsigned type = ELFW(ST_TYPE)(sym->st_info); + int imp_sym = pe_find_import(pe->s1, sym); + struct import_symbol *is; + + if (0 == imp_sym) + goto not_found; + + if (type == STT_NOTYPE) { + /* symbols from assembler have no type, find out which */ + if (pe_isafunc(sym_index)) + type = STT_FUNC; + else + type = STT_OBJECT; + } + + is = pe_add_import(pe, imp_sym); + + if (type == STT_FUNC) { + unsigned long offset = is->thk_offset; + if (offset) { + /* got aliased symbol, like stricmp and _stricmp */ + + } else { + char buffer[100]; + WORD *p; + + offset = text_section->data_offset; + /* add the 'jmp IAT[x]' instruction */ +#ifdef TCC_TARGET_ARM + p = section_ptr_add(text_section, 8+4); // room for code and address + (*(DWORD*)(p)) = 0xE59FC000; // arm code ldr ip, [pc] ; PC+8+0 = 0001xxxx + (*(DWORD*)(p+2)) = 0xE59CF000; // arm code ldr pc, [ip] +#else + p = section_ptr_add(text_section, 8); + *p = 0x25FF; +#ifdef TCC_TARGET_X86_64 + *(DWORD*)(p+1) = (DWORD)-4; +#endif +#endif + /* add a helper symbol, will be patched later in + pe_build_imports */ + sprintf(buffer, "IAT.%s", name); + is->iat_index = put_elf_sym( + symtab_section, 0, sizeof(DWORD), + ELFW(ST_INFO)(STB_GLOBAL, STT_OBJECT), + 0, SHN_UNDEF, buffer); +#ifdef TCC_TARGET_ARM + put_elf_reloc(symtab_section, text_section, + offset + 8, R_XXX_THUNKFIX, is->iat_index); // offset to IAT position +#else + put_elf_reloc(symtab_section, text_section, + offset + 2, R_XXX_THUNKFIX, is->iat_index); +#endif + is->thk_offset = offset; + } + + /* tcc_realloc might have altered sym's address */ + sym = (ElfW(Sym) *)symtab_section->data + sym_index; + + /* patch the original symbol */ + sym->st_value = offset; + sym->st_shndx = text_section->sh_num; + sym->st_other &= ~ST_PE_EXPORT; /* do not export */ + continue; + } + + if (type == STT_OBJECT) { /* data, ptr to that should be */ + if (0 == is->iat_index) { + /* original symbol will be patched later in pe_build_imports */ + is->iat_index = sym_index; + continue; + } + } + + not_found: + tcc_error_noabort("undefined symbol '%s'", name); + ret = -1; + + } else if (pe->s1->rdynamic + && ELFW(ST_BIND)(sym->st_info) != STB_LOCAL) { + /* if -rdynamic option, then export all non local symbols */ + sym->st_other |= ST_PE_EXPORT; + } + } + return ret; +} + +/*----------------------------------------------------------------------------*/ +#ifdef PE_PRINT_SECTIONS +static void pe_print_section(FILE * f, Section * s) +{ + /* just if you'r curious */ + BYTE *p, *e, b; + int i, n, l, m; + p = s->data; + e = s->data + s->data_offset; + l = e - p; + + fprintf(f, "section \"%s\"", s->name); + if (s->link) + fprintf(f, "\nlink \"%s\"", s->link->name); + if (s->reloc) + fprintf(f, "\nreloc \"%s\"", s->reloc->name); + fprintf(f, "\nv_addr %08X", (unsigned)s->sh_addr); + fprintf(f, "\ncontents %08X", (unsigned)l); + fprintf(f, "\n\n"); + + if (s->sh_type == SHT_NOBITS) + return; + + if (0 == l) + return; + + if (s->sh_type == SHT_SYMTAB) + m = sizeof(ElfW(Sym)); + else if (s->sh_type == SHT_RELX) + m = sizeof(ElfW_Rel); + else + m = 16; + + fprintf(f, "%-8s", "offset"); + for (i = 0; i < m; ++i) + fprintf(f, " %02x", i); + n = 56; + + if (s->sh_type == SHT_SYMTAB || s->sh_type == SHT_RELX) { + const char *fields1[] = { + "name", + "value", + "size", + "bind", + "type", + "other", + "shndx", + NULL + }; + + const char *fields2[] = { + "offs", + "type", + "symb", + NULL + }; + + const char **p; + + if (s->sh_type == SHT_SYMTAB) + p = fields1, n = 106; + else + p = fields2, n = 58; + + for (i = 0; p[i]; ++i) + fprintf(f, "%6s", p[i]); + fprintf(f, " symbol"); + } + + fprintf(f, "\n"); + for (i = 0; i < n; ++i) + fprintf(f, "-"); + fprintf(f, "\n"); + + for (i = 0; i < l;) + { + fprintf(f, "%08X", i); + for (n = 0; n < m; ++n) { + if (n + i < l) + fprintf(f, " %02X", p[i + n]); + else + fprintf(f, " "); + } + + if (s->sh_type == SHT_SYMTAB) { + ElfW(Sym) *sym = (ElfW(Sym) *) (p + i); + const char *name = s->link->data + sym->st_name; + fprintf(f, " %04X %04X %04X %02X %02X %02X %04X \"%s\"", + (unsigned)sym->st_name, + (unsigned)sym->st_value, + (unsigned)sym->st_size, + (unsigned)ELFW(ST_BIND)(sym->st_info), + (unsigned)ELFW(ST_TYPE)(sym->st_info), + (unsigned)sym->st_other, + (unsigned)sym->st_shndx, + name); + + } else if (s->sh_type == SHT_RELX) { + ElfW_Rel *rel = (ElfW_Rel *) (p + i); + ElfW(Sym) *sym = + (ElfW(Sym) *) s->link->data + ELFW(R_SYM)(rel->r_info); + const char *name = s->link->link->data + sym->st_name; + fprintf(f, " %04X %02X %04X \"%s\"", + (unsigned)rel->r_offset, + (unsigned)ELFW(R_TYPE)(rel->r_info), + (unsigned)ELFW(R_SYM)(rel->r_info), + name); + } else { + fprintf(f, " "); + for (n = 0; n < m; ++n) { + if (n + i < l) { + b = p[i + n]; + if (b < 32 || b >= 127) + b = '.'; + fprintf(f, "%c", b); + } + } + } + i += m; + fprintf(f, "\n"); + } + fprintf(f, "\n\n"); +} + +static void pe_print_sections(TCCState *s1, const char *fname) +{ + Section *s; + FILE *f; + int i; + f = fopen(fname, "w"); + for (i = 1; i < s1->nb_sections; ++i) { + s = s1->sections[i]; + pe_print_section(f, s); + } + pe_print_section(f, s1->dynsymtab_section); + fclose(f); +} +#endif + +/* ------------------------------------------------------------- */ +/* helper function for load/store to insert one more indirection */ + +ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2) +{ + Sym *sym; + ElfW(Sym) *esym; + int r2; + + if ((sv->r & (VT_VALMASK|VT_SYM)) != (VT_CONST|VT_SYM) || (sv->r2 != VT_CONST)) + return sv; + sym = sv->sym; + if ((sym->type.t & (VT_EXTERN|VT_STATIC)) != VT_EXTERN) + return sv; + if (!sym->c) + put_extern_sym(sym, NULL, 0, 0); + esym = &((ElfW(Sym) *)symtab_section->data)[sym->c]; + if (!(esym->st_other & ST_PE_IMPORT)) + return sv; + + // printf("import %04x %04x %04x %s\n", sv->type.t, sym->type.t, sv->r, get_tok_str(sv->sym->v, NULL)); + + memset(v2, 0, sizeof *v2); + v2->type.t = VT_PTR; + v2->r = VT_CONST | VT_SYM | VT_LVAL; + v2->sym = sv->sym; + + r2 = get_reg(RC_INT); + load(r2, v2); + v2->r = r2; + + if ((uint32_t)sv->c.i) { + vpushv(v2); + vpushi(sv->c.i); + gen_opi('+'); + *v2 = *vtop--; + } + + v2->type.t = sv->type.t; + v2->r |= sv->r & VT_LVAL; + return v2; +} + +ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value) +{ + return add_elf_sym( + s1->dynsymtab_section, + value, + dllindex, /* st_size */ + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), + 0, + value ? SHN_ABS : SHN_UNDEF, + name + ); +} + +static int add_dllref(TCCState *s1, const char *dllname) +{ + DLLReference *dllref; + int i; + for (i = 0; i < s1->nb_loaded_dlls; ++i) + if (0 == strcmp(s1->loaded_dlls[i]->name, dllname)) + return i + 1; + dllref = tcc_mallocz(sizeof(DLLReference) + strlen(dllname)); + strcpy(dllref->name, dllname); + dynarray_add((void ***) &s1->loaded_dlls, &s1->nb_loaded_dlls, dllref); + return s1->nb_loaded_dlls; +} + +/* ------------------------------------------------------------- */ + +static int read_mem(int fd, unsigned offset, void *buffer, unsigned len) +{ + lseek(fd, offset, SEEK_SET); + return len == read(fd, buffer, len); +} + +/* ------------------------------------------------------------- + * This is for compiled windows resources in 'coff' format + * as generated by 'windres.exe -O coff ...'. + */ + +static int pe_load_res(TCCState *s1, int fd) +{ + struct pe_rsrc_header hdr; + Section *rsrc_section; + int i, ret = -1; + BYTE *ptr; + unsigned offs; + + if (!read_mem(fd, 0, &hdr, sizeof hdr)) + goto quit; + + if (hdr.filehdr.Machine != IMAGE_FILE_MACHINE + || hdr.filehdr.NumberOfSections != 1 + || strcmp(hdr.sectionhdr.Name, ".rsrc") != 0) + goto quit; + + rsrc_section = new_section(s1, ".rsrc", SHT_PROGBITS, SHF_ALLOC); + ptr = section_ptr_add(rsrc_section, hdr.sectionhdr.SizeOfRawData); + offs = hdr.sectionhdr.PointerToRawData; + if (!read_mem(fd, offs, ptr, hdr.sectionhdr.SizeOfRawData)) + goto quit; + offs = hdr.sectionhdr.PointerToRelocations; + for (i = 0; i < hdr.sectionhdr.NumberOfRelocations; ++i) + { + struct pe_rsrc_reloc rel; + if (!read_mem(fd, offs, &rel, sizeof rel)) + goto quit; + // printf("rsrc_reloc: %x %x %x\n", rel.offset, rel.size, rel.type); + if (rel.type != RSRC_RELTYPE) + goto quit; + put_elf_reloc(symtab_section, rsrc_section, + rel.offset, R_XXX_RELATIVE, 0); + offs += sizeof rel; + } + ret = 0; +quit: + return ret; +} + +/* ------------------------------------------------------------- */ +static char *trimfront(char *p) +{ + while (*p && (unsigned char)*p <= ' ') + ++p; + return p; +} + +static char *trimback(char *a, char *e) +{ + while (e > a && (unsigned char)e[-1] <= ' ') + --e; + *e = 0;; + return a; +} + +/* ------------------------------------------------------------- */ +static int pe_load_def(TCCState *s1, int fd) +{ + int state = 0, ret = -1, dllindex = 0, ord; + char line[400], dllname[80], *p, *x; + FILE *fp; + + fp = fdopen(dup(fd), "rb"); + while (fgets(line, sizeof line, fp)) + { + p = trimfront(trimback(line, strchr(line, 0))); + if (0 == *p || ';' == *p) + continue; + + switch (state) { + case 0: + if (0 != strnicmp(p, "LIBRARY", 7)) + goto quit; + pstrcpy(dllname, sizeof dllname, trimfront(p+7)); + ++state; + continue; + + case 1: + if (0 != stricmp(p, "EXPORTS")) + goto quit; + ++state; + continue; + + case 2: + dllindex = add_dllref(s1, dllname); + ++state; + /* fall through */ + default: + /* get ordinal and will store in sym->st_value */ + ord = 0; + x = strchr(p, ' '); + if (x) { + *x = 0, x = strrchr(x + 1, '@'); + if (x) { + char *d; + ord = (int)strtol(x + 1, &d, 10); + if (*d) + ord = 0; + } + } + pe_putimport(s1, dllindex, p, ord); + continue; + } + } + ret = 0; +quit: + fclose(fp); + return ret; +} + +/* ------------------------------------------------------------- */ +#define TINY_IMPDEF_GET_EXPORT_NAMES_ONLY +#include "win32/tools/tiny_impdef.c" + +static int pe_load_dll(TCCState *s1, const char *dllname, int fd) +{ + char *p, *q; + int index; + p = get_export_names(fd); + if (!p) + return -1; + index = add_dllref(s1, dllname); + for (q = p; *q; q += 1 + strlen(q)) + pe_putimport(s1, index, q, 0); + tcc_free(p); + return 0; +} + +/* ------------------------------------------------------------- */ +ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd) +{ + int ret = -1; + char buf[10]; + if (0 == strcmp(tcc_fileextension(filename), ".def")) + ret = pe_load_def(s1, fd); + else if (pe_load_res(s1, fd) == 0) + ret = 0; + else if (read_mem(fd, 0, buf, sizeof buf) && 0 == strncmp(buf, "MZ", 2)) + ret = pe_load_dll(s1, tcc_basename(filename), fd); + return ret; +} + +/* ------------------------------------------------------------- */ +#ifdef TCC_TARGET_X86_64 +static unsigned pe_add_uwwind_info(TCCState *s1) +{ + if (NULL == s1->uw_pdata) { + s1->uw_pdata = find_section(tcc_state, ".pdata"); + s1->uw_pdata->sh_addralign = 4; + s1->uw_sym = put_elf_sym(symtab_section, 0, 0, 0, 0, text_section->sh_num, NULL); + } + + if (0 == s1->uw_offs) { + /* As our functions all have the same stackframe, we use one entry for all */ + static const unsigned char uw_info[] = { + 0x01, // UBYTE: 3 Version , UBYTE: 5 Flags + 0x04, // UBYTE Size of prolog + 0x02, // UBYTE Count of unwind codes + 0x05, // UBYTE: 4 Frame Register (rbp), UBYTE: 4 Frame Register offset (scaled) + // USHORT * n Unwind codes array + // 0x0b, 0x01, 0xff, 0xff, // stack size + 0x04, 0x03, // set frame ptr (mov rsp -> rbp) + 0x01, 0x50 // push reg (rbp) + }; + + Section *s = text_section; + unsigned char *p; + + section_ptr_add(s, -s->data_offset & 3); /* align */ + s1->uw_offs = s->data_offset; + p = section_ptr_add(s, sizeof uw_info); + memcpy(p, uw_info, sizeof uw_info); + } + + return s1->uw_offs; +} + +ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack) +{ + TCCState *s1 = tcc_state; + Section *pd; + unsigned o, n, d; + struct /* _RUNTIME_FUNCTION */ { + DWORD BeginAddress; + DWORD EndAddress; + DWORD UnwindData; + } *p; + + d = pe_add_uwwind_info(s1); + pd = s1->uw_pdata; + o = pd->data_offset; + p = section_ptr_add(pd, sizeof *p); + + /* record this function */ + p->BeginAddress = start; + p->EndAddress = end; + p->UnwindData = d; + + /* put relocations on it */ + for (n = o + sizeof *p; o < n; o += sizeof p->BeginAddress) + put_elf_reloc(symtab_section, pd, o, R_X86_64_RELATIVE, s1->uw_sym); +} +#endif +/* ------------------------------------------------------------- */ +#ifdef TCC_TARGET_X86_64 +#define PE_STDSYM(n,s) n +#else +#define PE_STDSYM(n,s) "_" n s +#endif + +static void pe_add_runtime(TCCState *s1, struct pe_info *pe) +{ + const char *start_symbol; + int pe_type = 0; + + if (find_elf_sym(symtab_section, PE_STDSYM("WinMain","@16"))) + pe_type = PE_GUI; + else + if (TCC_OUTPUT_DLL == s1->output_type) { + pe_type = PE_DLL; + /* need this for 'tccelf.c:relocate_section()' */ + s1->output_type = TCC_OUTPUT_EXE; + } + else + pe_type = PE_EXE; + + start_symbol = + TCC_OUTPUT_MEMORY == s1->output_type + ? PE_GUI == pe_type ? "__runwinmain" : "_main" + : PE_DLL == pe_type ? PE_STDSYM("__dllstart","@12") + : PE_GUI == pe_type ? "__winstart" : "__start" + ; + + if (!s1->leading_underscore || strchr(start_symbol, '@')) + ++start_symbol; + + /* grab the startup code from libtcc1 */ + if (TCC_OUTPUT_MEMORY != s1->output_type || PE_GUI == pe_type) + add_elf_sym(symtab_section, + 0, 0, + ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, + SHN_UNDEF, start_symbol); + + tcc_add_pragma_libs(s1); + + if (0 == s1->nostdlib) { + static const char *libs[] = { + "tcc1", "msvcrt", "kernel32", "", "user32", "gdi32", NULL + }; + const char **pp, *p; + for (pp = libs; 0 != (p = *pp); ++pp) { + if (0 == *p) { + if (PE_DLL != pe_type && PE_GUI != pe_type) + break; + } else if (tcc_add_library_err(s1, p) < 0) { + break; + } + } + } + + if (TCC_OUTPUT_MEMORY == s1->output_type) { + pe_type = PE_RUN; +#ifdef TCC_IS_NATIVE + s1->runtime_main = start_symbol; +#endif + } else { + pe->start_addr = (DWORD)(uintptr_t)tcc_get_symbol_err(s1, start_symbol); + } + + pe->type = pe_type; +} + +ST_FUNC int pe_output_file(TCCState * s1, const char *filename) +{ + int ret; + struct pe_info pe; + int i; + + memset(&pe, 0, sizeof pe); + pe.filename = filename; + pe.s1 = s1; + + pe_add_runtime(s1, &pe); + tcc_add_bcheck(s1); + relocate_common_syms(); /* assign bss adresses */ + tcc_add_linker_symbols(s1); + + ret = pe_check_symbols(&pe); + if (ret) + ; + else if (filename) { + if (PE_DLL == pe.type) { + pe.reloc = new_section(pe.s1, ".reloc", SHT_PROGBITS, 0); + /* XXX: check if is correct for arm-pe target */ + pe.imagebase = 0x10000000; + } else { +#if defined(TCC_TARGET_ARM) + pe.imagebase = 0x00010000; +#else + pe.imagebase = 0x00400000; +#endif + } + +#if defined(TCC_TARGET_ARM) + /* we use "console" subsystem by default */ + pe.subsystem = 9; +#else + if (PE_DLL == pe.type || PE_GUI == pe.type) + pe.subsystem = 2; + else + pe.subsystem = 3; +#endif + /* Allow override via -Wl,-subsystem=... option */ + if (s1->pe_subsystem != 0) + pe.subsystem = s1->pe_subsystem; + + /* set default file/section alignment */ + if (pe.subsystem == 1) { + pe.section_align = 0x20; + pe.file_align = 0x20; + } else { + pe.section_align = 0x1000; + pe.file_align = 0x200; + } + + if (s1->section_align != 0) + pe.section_align = s1->section_align; + if (s1->pe_file_align != 0) + pe.file_align = s1->pe_file_align; + + if ((pe.subsystem >= 10) && (pe.subsystem <= 12)) + pe.imagebase = 0; + + if (s1->has_text_addr) + pe.imagebase = s1->text_addr; + + pe_assign_addresses(&pe); + relocate_syms(s1, 0); + for (i = 1; i < s1->nb_sections; ++i) { + Section *s = s1->sections[i]; + if (s->reloc) { + relocate_section(s1, s); + pe_relocate_rva(&pe, s); + } + } + if (s1->nb_errors) + ret = -1; + else + ret = pe_write(&pe); + tcc_free(pe.sec_info); + } else { +#ifdef TCC_IS_NATIVE + pe.thunk = data_section; + pe_build_imports(&pe); +#endif + } + +#ifdef PE_PRINT_SECTIONS + pe_print_sections(s1, "tcc.log"); +#endif + return ret; +} + +/* ------------------------------------------------------------- */ diff --git a/external/TCC/tccpp.c b/external/TCC/tccpp.c new file mode 100644 index 00000000..2c276c28 --- /dev/null +++ b/external/TCC/tccpp.c @@ -0,0 +1,3460 @@ +/* + * TCC - Tiny C Compiler + * + * Copyright (c) 2001-2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" + +/********************************************************/ +/* global variables */ + +ST_DATA int tok_flags; +ST_DATA int parse_flags; + +ST_DATA struct BufferedFile *file; +ST_DATA int ch, tok; +ST_DATA CValue tokc; +ST_DATA const int *macro_ptr; +ST_DATA CString tokcstr; /* current parsed string, if any */ + +/* display benchmark infos */ +ST_DATA int total_lines; +ST_DATA int total_bytes; +ST_DATA int tok_ident; +ST_DATA TokenSym **table_ident; + +/* ------------------------------------------------------------------------- */ + +static TokenSym *hash_ident[TOK_HASH_SIZE]; +static char token_buf[STRING_MAX_SIZE + 1]; +static unsigned char isidnum_table[256 - CH_EOF]; +/* isidnum_table flags: */ +#define IS_SPC 1 +#define IS_ID 2 +#define IS_NUM 4 + +static TokenString *macro_stack; + +static const char tcc_keywords[] = +#define DEF(id, str) str "\0" +#include "tcctok.h" +#undef DEF +; + +/* WARNING: the content of this string encodes token numbers */ +static const unsigned char tok_two_chars[] = +/* outdated -- gr + "<=\236>=\235!=\225&&\240||\241++\244--\242==\224<<\1>>\2+=\253" + "-=\255*=\252/=\257%=\245&=\246^=\336|=\374->\313..\250##\266"; +*/{ + '<','=', TOK_LE, + '>','=', TOK_GE, + '!','=', TOK_NE, + '&','&', TOK_LAND, + '|','|', TOK_LOR, + '+','+', TOK_INC, + '-','-', TOK_DEC, + '=','=', TOK_EQ, + '<','<', TOK_SHL, + '>','>', TOK_SAR, + '+','=', TOK_A_ADD, + '-','=', TOK_A_SUB, + '*','=', TOK_A_MUL, + '/','=', TOK_A_DIV, + '%','=', TOK_A_MOD, + '&','=', TOK_A_AND, + '^','=', TOK_A_XOR, + '|','=', TOK_A_OR, + '-','>', TOK_ARROW, + '.','.', 0xa8, // C++ token ? + '#','#', TOK_TWOSHARPS, + 0 +}; + +static void next_nomacro_spc(void); + +ST_FUNC void skip(int c) +{ + if (tok != c) + tcc_error("'%c' expected (got \"%s\")", c, get_tok_str(tok, &tokc)); + next(); +} + +ST_FUNC void expect(const char *msg) +{ + tcc_error("%s expected", msg); +} + +ST_FUNC void begin_macro(TokenString *str, int alloc) +{ + str->alloc = alloc; + str->prev = macro_stack; + str->prev_ptr = macro_ptr; + macro_ptr = str->str; + macro_stack = str; +} + +ST_FUNC void end_macro(void) +{ + TokenString *str = macro_stack; + macro_stack = str->prev; + macro_ptr = str->prev_ptr; + if (str->alloc == 2) { + str->alloc = 3; /* just mark as finished */ + } else { + tok_str_free(str->str); + if (str->alloc == 1) + tcc_free(str); + } +} + +/* ------------------------------------------------------------------------- */ +/* CString handling */ +static void cstr_realloc(CString *cstr, int new_size) +{ + int size; + void *data; + + size = cstr->size_allocated; + if (size == 0) + size = 8; /* no need to allocate a too small first string */ + while (size < new_size) + size = size * 2; + data = tcc_realloc(cstr->data_allocated, size); + cstr->data_allocated = data; + cstr->size_allocated = size; + cstr->data = data; +} + +/* add a byte */ +ST_FUNC void cstr_ccat(CString *cstr, int ch) +{ + int size; + size = cstr->size + 1; + if (size > cstr->size_allocated) + cstr_realloc(cstr, size); + ((unsigned char *)cstr->data)[size - 1] = ch; + cstr->size = size; +} + +ST_FUNC void cstr_cat(CString *cstr, const char *str) +{ + int c; + for(;;) { + c = *str; + if (c == '\0') + break; + cstr_ccat(cstr, c); + str++; + } +} + +/* add a wide char */ +ST_FUNC void cstr_wccat(CString *cstr, int ch) +{ + int size; + size = cstr->size + sizeof(nwchar_t); + if (size > cstr->size_allocated) + cstr_realloc(cstr, size); + *(nwchar_t *)(((unsigned char *)cstr->data) + size - sizeof(nwchar_t)) = ch; + cstr->size = size; +} + +ST_FUNC void cstr_new(CString *cstr) +{ + memset(cstr, 0, sizeof(CString)); +} + +/* free string and reset it to NULL */ +ST_FUNC void cstr_free(CString *cstr) +{ + tcc_free(cstr->data_allocated); + cstr_new(cstr); +} + +/* reset string to empty */ +ST_FUNC void cstr_reset(CString *cstr) +{ + cstr->size = 0; +} + +/* XXX: unicode ? */ +static void add_char(CString *cstr, int c) +{ + if (c == '\'' || c == '\"' || c == '\\') { + /* XXX: could be more precise if char or string */ + cstr_ccat(cstr, '\\'); + } + if (c >= 32 && c <= 126) { + cstr_ccat(cstr, c); + } else { + cstr_ccat(cstr, '\\'); + if (c == '\n') { + cstr_ccat(cstr, 'n'); + } else { + cstr_ccat(cstr, '0' + ((c >> 6) & 7)); + cstr_ccat(cstr, '0' + ((c >> 3) & 7)); + cstr_ccat(cstr, '0' + (c & 7)); + } + } +} + +/* ------------------------------------------------------------------------- */ +/* allocate a new token */ +static TokenSym *tok_alloc_new(TokenSym **pts, const char *str, int len) +{ + TokenSym *ts, **ptable; + int i; + + if (tok_ident >= SYM_FIRST_ANOM) + tcc_error("memory full (symbols)"); + + /* expand token table if needed */ + i = tok_ident - TOK_IDENT; + if ((i % TOK_ALLOC_INCR) == 0) { + ptable = tcc_realloc(table_ident, (i + TOK_ALLOC_INCR) * sizeof(TokenSym *)); + table_ident = ptable; + } + + ts = tcc_malloc(sizeof(TokenSym) + len); + table_ident[i] = ts; + ts->tok = tok_ident++; + ts->sym_define = NULL; + ts->sym_label = NULL; + ts->sym_struct = NULL; + ts->sym_identifier = NULL; + ts->len = len; + ts->hash_next = NULL; + memcpy(ts->str, str, len); + ts->str[len] = '\0'; + *pts = ts; + return ts; +} + +#define TOK_HASH_INIT 1 +#define TOK_HASH_FUNC(h, c) ((h) * 263 + (c)) + +/* find a token and add it if not found */ +ST_FUNC TokenSym *tok_alloc(const char *str, int len) +{ + TokenSym *ts, **pts; + int i; + unsigned int h; + + h = TOK_HASH_INIT; + for(i=0;ilen == len && !memcmp(ts->str, str, len)) + return ts; + pts = &(ts->hash_next); + } + return tok_alloc_new(pts, str, len); +} + +/* XXX: buffer overflow */ +/* XXX: float tokens */ +ST_FUNC const char *get_tok_str(int v, CValue *cv) +{ + static CString cstr_buf; + char *p; + int i, len; + + /* first time preallocate static cstr_buf, next time only reset position to start */ + if (!cstr_buf.data_allocated) + cstr_realloc(&cstr_buf, STRING_MAX_SIZE); + else + cstr_buf.size = 0; + p = cstr_buf.data; + + switch(v) { + case TOK_CINT: + case TOK_CUINT: + /* XXX: not quite exact, but only useful for testing */ + sprintf(p, "%llu", (unsigned long long)cv->i); + break; + case TOK_CLLONG: + case TOK_CULLONG: + /* XXX: not quite exact, but only useful for testing */ +#ifdef _WIN32 + sprintf(p, "%u", (unsigned)cv->i); +#else + sprintf(p, "%llu", (unsigned long long)cv->i); +#endif + break; + case TOK_LCHAR: + cstr_ccat(&cstr_buf, 'L'); + case TOK_CCHAR: + cstr_ccat(&cstr_buf, '\''); + add_char(&cstr_buf, cv->i); + cstr_ccat(&cstr_buf, '\''); + cstr_ccat(&cstr_buf, '\0'); + break; + case TOK_PPNUM: + case TOK_PPSTR: + return (char*)cv->str.data; + case TOK_LSTR: + cstr_ccat(&cstr_buf, 'L'); + case TOK_STR: + cstr_ccat(&cstr_buf, '\"'); + if (v == TOK_STR) { + len = cv->str.size - 1; + for(i=0;istr.data)[i]); + } else { + len = (cv->str.size / sizeof(nwchar_t)) - 1; + for(i=0;istr.data)[i]); + } + cstr_ccat(&cstr_buf, '\"'); + cstr_ccat(&cstr_buf, '\0'); + break; + + case TOK_CFLOAT: + cstr_cat(&cstr_buf, ""); + cstr_ccat(&cstr_buf, '\0'); + break; + case TOK_CDOUBLE: + cstr_cat(&cstr_buf, ""); + cstr_ccat(&cstr_buf, '\0'); + break; + case TOK_CLDOUBLE: + cstr_cat(&cstr_buf, ""); + cstr_ccat(&cstr_buf, '\0'); + break; + case TOK_LINENUM: + cstr_cat(&cstr_buf, ""); + cstr_ccat(&cstr_buf, '\0'); + break; + + /* above tokens have value, the ones below don't */ + + case TOK_LT: + v = '<'; + goto addv; + case TOK_GT: + v = '>'; + goto addv; + case TOK_DOTS: + return strcpy(p, "..."); + case TOK_A_SHL: + return strcpy(p, "<<="); + case TOK_A_SAR: + return strcpy(p, ">>="); + default: + if (v < TOK_IDENT) { + /* search in two bytes table */ + const unsigned char *q = tok_two_chars; + while (*q) { + if (q[2] == v) { + *p++ = q[0]; + *p++ = q[1]; + *p = '\0'; + return cstr_buf.data; + } + q += 3; + } + if (v >= 127) { + sprintf(cstr_buf.data, "<%02x>", v); + return cstr_buf.data; + } + addv: + *p++ = v; + *p = '\0'; + } else if (v < tok_ident) { + return table_ident[v - TOK_IDENT]->str; + } else if (v >= SYM_FIRST_ANOM) { + /* special name for anonymous symbol */ + sprintf(p, "L.%u", v - SYM_FIRST_ANOM); + } else { + /* should never happen */ + return NULL; + } + break; + } + return cstr_buf.data; +} + +/* return the current character, handling end of block if necessary + (but not stray) */ +ST_FUNC int handle_eob(void) +{ + BufferedFile *bf = file; + int len; + + /* only tries to read if really end of buffer */ + if (bf->buf_ptr >= bf->buf_end) { + if (bf->fd != -1) { +#if defined(PARSE_DEBUG) + len = 1; +#else + len = IO_BUF_SIZE; +#endif + len = read(bf->fd, bf->buffer, len); + if (len < 0) + len = 0; + } else { + len = 0; + } + total_bytes += len; + bf->buf_ptr = bf->buffer; + bf->buf_end = bf->buffer + len; + *bf->buf_end = CH_EOB; + } + if (bf->buf_ptr < bf->buf_end) { + return bf->buf_ptr[0]; + } else { + bf->buf_ptr = bf->buf_end; + return CH_EOF; + } +} + +/* read next char from current input file and handle end of input buffer */ +ST_INLN void inp(void) +{ + ch = *(++(file->buf_ptr)); + /* end of buffer/file handling */ + if (ch == CH_EOB) + ch = handle_eob(); +} + +/* handle '\[\r]\n' */ +static int handle_stray_noerror(void) +{ + while (ch == '\\') { + inp(); + if (ch == '\n') { + file->line_num++; + inp(); + } else if (ch == '\r') { + inp(); + if (ch != '\n') + goto fail; + file->line_num++; + inp(); + } else { + fail: + return 1; + } + } + return 0; +} + +static void handle_stray(void) +{ + if (handle_stray_noerror()) + tcc_error("stray '\\' in program"); +} + +/* skip the stray and handle the \\n case. Output an error if + incorrect char after the stray */ +static int handle_stray1(uint8_t *p) +{ + int c; + + file->buf_ptr = p; + if (p >= file->buf_end) { + c = handle_eob(); + if (c != '\\') + return c; + p = file->buf_ptr; + } + ch = *p; + if (handle_stray_noerror()) { + if (!(parse_flags & PARSE_FLAG_ACCEPT_STRAYS)) + tcc_error("stray '\\' in program"); + *--file->buf_ptr = '\\'; + } + p = file->buf_ptr; + c = *p; + return c; +} + +/* handle just the EOB case, but not stray */ +#define PEEKC_EOB(c, p)\ +{\ + p++;\ + c = *p;\ + if (c == '\\') {\ + file->buf_ptr = p;\ + c = handle_eob();\ + p = file->buf_ptr;\ + }\ +} + +/* handle the complicated stray case */ +#define PEEKC(c, p)\ +{\ + p++;\ + c = *p;\ + if (c == '\\') {\ + c = handle_stray1(p);\ + p = file->buf_ptr;\ + }\ +} + +/* input with '\[\r]\n' handling. Note that this function cannot + handle other characters after '\', so you cannot call it inside + strings or comments */ +ST_FUNC void minp(void) +{ + inp(); + if (ch == '\\') + handle_stray(); +} + + +/* single line C++ comments */ +static uint8_t *parse_line_comment(uint8_t *p) +{ + int c; + + p++; + for(;;) { + c = *p; + redo: + if (c == '\n' || c == CH_EOF) { + break; + } else if (c == '\\') { + file->buf_ptr = p; + c = handle_eob(); + p = file->buf_ptr; + if (c == '\\') { + PEEKC_EOB(c, p); + if (c == '\n') { + file->line_num++; + PEEKC_EOB(c, p); + } else if (c == '\r') { + PEEKC_EOB(c, p); + if (c == '\n') { + file->line_num++; + PEEKC_EOB(c, p); + } + } + } else { + goto redo; + } + } else { + p++; + } + } + return p; +} + +/* C comments */ +ST_FUNC uint8_t *parse_comment(uint8_t *p) +{ + int c; + + p++; + for(;;) { + /* fast skip loop */ + for(;;) { + c = *p; + if (c == '\n' || c == '*' || c == '\\') + break; + p++; + c = *p; + if (c == '\n' || c == '*' || c == '\\') + break; + p++; + } + /* now we can handle all the cases */ + if (c == '\n') { + file->line_num++; + p++; + } else if (c == '*') { + p++; + for(;;) { + c = *p; + if (c == '*') { + p++; + } else if (c == '/') { + goto end_of_comment; + } else if (c == '\\') { + file->buf_ptr = p; + c = handle_eob(); + p = file->buf_ptr; + if (c == CH_EOF) + tcc_error("unexpected end of file in comment"); + if (c == '\\') { + /* skip '\[\r]\n', otherwise just skip the stray */ + while (c == '\\') { + PEEKC_EOB(c, p); + if (c == '\n') { + file->line_num++; + PEEKC_EOB(c, p); + } else if (c == '\r') { + PEEKC_EOB(c, p); + if (c == '\n') { + file->line_num++; + PEEKC_EOB(c, p); + } + } else { + goto after_star; + } + } + } + } else { + break; + } + } + after_star: ; + } else { + /* stray, eob or eof */ + file->buf_ptr = p; + c = handle_eob(); + p = file->buf_ptr; + if (c == CH_EOF) { + tcc_error("unexpected end of file in comment"); + } else if (c == '\\') { + p++; + } + } + } + end_of_comment: + p++; + return p; +} + +#define cinp minp + +static inline void skip_spaces(void) +{ + while (isidnum_table[ch - CH_EOF] & IS_SPC) + cinp(); +} + +static inline int check_space(int t, int *spc) +{ + if (t < 256 && (isidnum_table[t - CH_EOF] & IS_SPC)) { + if (*spc) + return 1; + *spc = 1; + } else + *spc = 0; + return 0; +} + +/* parse a string without interpreting escapes */ +static uint8_t *parse_pp_string(uint8_t *p, + int sep, CString *str) +{ + int c; + p++; + for(;;) { + c = *p; + if (c == sep) { + break; + } else if (c == '\\') { + file->buf_ptr = p; + c = handle_eob(); + p = file->buf_ptr; + if (c == CH_EOF) { + unterminated_string: + /* XXX: indicate line number of start of string */ + tcc_error("missing terminating %c character", sep); + } else if (c == '\\') { + /* escape : just skip \[\r]\n */ + PEEKC_EOB(c, p); + if (c == '\n') { + file->line_num++; + p++; + } else if (c == '\r') { + PEEKC_EOB(c, p); + if (c != '\n') + expect("'\n' after '\r'"); + file->line_num++; + p++; + } else if (c == CH_EOF) { + goto unterminated_string; + } else { + if (str) { + cstr_ccat(str, '\\'); + cstr_ccat(str, c); + } + p++; + } + } + } else if (c == '\n') { + file->line_num++; + goto add_char; + } else if (c == '\r') { + PEEKC_EOB(c, p); + if (c != '\n') { + if (str) + cstr_ccat(str, '\r'); + } else { + file->line_num++; + goto add_char; + } + } else { + add_char: + if (str) + cstr_ccat(str, c); + p++; + } + } + p++; + return p; +} + +/* skip block of text until #else, #elif or #endif. skip also pairs of + #if/#endif */ +static void preprocess_skip(void) +{ + int a, start_of_line, c, in_warn_or_error; + uint8_t *p; + + p = file->buf_ptr; + a = 0; +redo_start: + start_of_line = 1; + in_warn_or_error = 0; + for(;;) { + redo_no_start: + c = *p; + switch(c) { + case ' ': + case '\t': + case '\f': + case '\v': + case '\r': + p++; + goto redo_no_start; + case '\n': + file->line_num++; + p++; + goto redo_start; + case '\\': + file->buf_ptr = p; + c = handle_eob(); + if (c == CH_EOF) { + expect("#endif"); + } else if (c == '\\') { + ch = file->buf_ptr[0]; + handle_stray_noerror(); + } + p = file->buf_ptr; + goto redo_no_start; + /* skip strings */ + case '\"': + case '\'': + if (in_warn_or_error) + goto _default; + p = parse_pp_string(p, c, NULL); + break; + /* skip comments */ + case '/': + if (in_warn_or_error) + goto _default; + file->buf_ptr = p; + ch = *p; + minp(); + p = file->buf_ptr; + if (ch == '*') { + p = parse_comment(p); + } else if (ch == '/') { + p = parse_line_comment(p); + } + break; + case '#': + p++; + if (start_of_line) { + file->buf_ptr = p; + next_nomacro(); + p = file->buf_ptr; + if (a == 0 && + (tok == TOK_ELSE || tok == TOK_ELIF || tok == TOK_ENDIF)) + goto the_end; + if (tok == TOK_IF || tok == TOK_IFDEF || tok == TOK_IFNDEF) + a++; + else if (tok == TOK_ENDIF) + a--; + else if( tok == TOK_ERROR || tok == TOK_WARNING) + in_warn_or_error = 1; + else if (tok == TOK_LINEFEED) + goto redo_start; + } else if (parse_flags & PARSE_FLAG_ASM_FILE) + p = parse_line_comment(p); + break; +_default: + default: + p++; + break; + } + start_of_line = 0; + } + the_end: ; + file->buf_ptr = p; +} + +/* ParseState handling */ + +/* XXX: currently, no include file info is stored. Thus, we cannot display + accurate messages if the function or data definition spans multiple + files */ + +/* save current parse state in 's' */ +ST_FUNC void save_parse_state(ParseState *s) +{ + s->line_num = file->line_num; + s->macro_ptr = macro_ptr; + s->tok = tok; + s->tokc = tokc; +} + +/* restore parse state from 's' */ +ST_FUNC void restore_parse_state(ParseState *s) +{ + file->line_num = s->line_num; + macro_ptr = s->macro_ptr; + tok = s->tok; + tokc = s->tokc; +} + +/* return the number of additional 'ints' necessary to store the + token */ +static inline int tok_size(const int *p) +{ + switch(*p) { + /* 4 bytes */ + case TOK_CINT: + case TOK_CUINT: + case TOK_CCHAR: + case TOK_LCHAR: + case TOK_CFLOAT: + case TOK_LINENUM: + return 1 + 1; + case TOK_STR: + case TOK_LSTR: + case TOK_PPNUM: + case TOK_PPSTR: + return 1 + ((sizeof(CString) + ((CString *)(p+1))->size + 3) >> 2); + case TOK_CDOUBLE: + case TOK_CLLONG: + case TOK_CULLONG: + return 1 + 2; + case TOK_CLDOUBLE: + return 1 + LDOUBLE_SIZE / 4; + default: + return 1 + 0; + } +} + +/* token string handling */ + +ST_INLN void tok_str_new(TokenString *s) +{ + s->str = NULL; + s->len = 0; + s->allocated_len = 0; + s->last_line_num = -1; +} + +ST_FUNC void tok_str_free(int *str) +{ + tcc_free(str); +} + +static int *tok_str_realloc(TokenString *s) +{ + int *str, len; + + if (s->allocated_len == 0) { + len = 8; + } else { + len = s->allocated_len * 2; + } + str = tcc_realloc(s->str, len * sizeof(int)); + s->allocated_len = len; + s->str = str; + return str; +} + +ST_FUNC void tok_str_add(TokenString *s, int t) +{ + int len, *str; + + len = s->len; + str = s->str; + if (len >= s->allocated_len) + str = tok_str_realloc(s); + str[len++] = t; + s->len = len; +} + +static void tok_str_add2(TokenString *s, int t, CValue *cv) +{ + int len, *str; + + len = s->len; + str = s->str; + + /* allocate space for worst case */ + if (len + TOK_MAX_SIZE > s->allocated_len) + str = tok_str_realloc(s); + str[len++] = t; + switch(t) { + case TOK_CINT: + case TOK_CUINT: + case TOK_CCHAR: + case TOK_LCHAR: + case TOK_CFLOAT: + case TOK_LINENUM: + str[len++] = cv->tab[0]; + break; + case TOK_PPNUM: + case TOK_PPSTR: + case TOK_STR: + case TOK_LSTR: + { + /* Insert the string into the int array. */ + size_t nb_words = + 1 + (cv->str.size + sizeof(int) - 1) / sizeof(int); + while ((len + nb_words) > s->allocated_len) + str = tok_str_realloc(s); + str[len] = cv->str.size; + memcpy(&str[len + 1], cv->str.data, cv->str.size); + len += nb_words; + } + break; + case TOK_CDOUBLE: + case TOK_CLLONG: + case TOK_CULLONG: +#if LDOUBLE_SIZE == 8 + case TOK_CLDOUBLE: +#endif + str[len++] = cv->tab[0]; + str[len++] = cv->tab[1]; + break; +#if LDOUBLE_SIZE == 12 + case TOK_CLDOUBLE: + str[len++] = cv->tab[0]; + str[len++] = cv->tab[1]; + str[len++] = cv->tab[2]; +#elif LDOUBLE_SIZE == 16 + case TOK_CLDOUBLE: + str[len++] = cv->tab[0]; + str[len++] = cv->tab[1]; + str[len++] = cv->tab[2]; + str[len++] = cv->tab[3]; +#elif LDOUBLE_SIZE != 8 +#error add long double size support +#endif + break; + default: + break; + } + s->len = len; +} + +/* add the current parse token in token string 's' */ +ST_FUNC void tok_str_add_tok(TokenString *s) +{ + CValue cval; + + /* save line number info */ + if (file->line_num != s->last_line_num) { + s->last_line_num = file->line_num; + cval.i = s->last_line_num; + tok_str_add2(s, TOK_LINENUM, &cval); + } + tok_str_add2(s, tok, &tokc); +} + +/* get a token from an integer array and increment pointer + accordingly. we code it as a macro to avoid pointer aliasing. */ +static inline void TOK_GET(int *t, const int **pp, CValue *cv) +{ + const int *p = *pp; + int n, *tab; + + tab = cv->tab; + switch(*t = *p++) { + case TOK_CINT: + case TOK_CUINT: + case TOK_CCHAR: + case TOK_LCHAR: + case TOK_CFLOAT: + case TOK_LINENUM: + tab[0] = *p++; + break; + case TOK_STR: + case TOK_LSTR: + case TOK_PPNUM: + case TOK_PPSTR: + cv->str.size = *p++; + cv->str.data = p; + cv->str.data_allocated = 0; + p += (cv->str.size + sizeof(int) - 1) / sizeof(int); + break; + case TOK_CDOUBLE: + case TOK_CLLONG: + case TOK_CULLONG: + n = 2; + goto copy; + case TOK_CLDOUBLE: +#if LDOUBLE_SIZE == 16 + n = 4; +#elif LDOUBLE_SIZE == 12 + n = 3; +#elif LDOUBLE_SIZE == 8 + n = 2; +#else +# error add long double size support +#endif + copy: + do + *tab++ = *p++; + while (--n); + break; + default: + break; + } + *pp = p; +} + +/* Calling this function is expensive, but it is not possible + to read a token string backwards. */ +static int tok_last(const int *str0, const int *str1) +{ + const int *str = str0; + int tok = 0; + CValue cval; + + while (str < str1) + TOK_GET(&tok, &str, &cval); + return tok; +} + +static int macro_is_equal(const int *a, const int *b) +{ + static CString cstr_buf; + CValue cv; + int t; + while (*a && *b) { + /* first time preallocate static cstr_buf, next time only reset position to start */ + if (!cstr_buf.data_allocated) + cstr_realloc(&cstr_buf, STRING_MAX_SIZE); + else + cstr_buf.size = 0; + TOK_GET(&t, &a, &cv); + cstr_cat(&cstr_buf, get_tok_str(t, &cv)); + cstr_ccat(&cstr_buf, '\0'); + TOK_GET(&t, &b, &cv); + if (strcmp(cstr_buf.data, get_tok_str(t, &cv))) + return 0; + } + return !(*a || *b); +} + +static void pp_line(TCCState *s1, BufferedFile *f, int level) +{ + int d = f->line_num - f->line_ref; + if (s1->Pflag == LINE_MACRO_OUTPUT_FORMAT_NONE + || (level == 0 && f->line_ref && d < 8)) + { + while (d > 0) + fputs("\n", s1->ppfp), --d; + } + else + if (s1->Pflag == LINE_MACRO_OUTPUT_FORMAT_STD) { + fprintf(s1->ppfp, "#line %d \"%s\"\n", f->line_num, f->filename); + } + else { + fprintf(s1->ppfp, "# %d \"%s\"%s\n", f->line_num, f->filename, + level > 0 ? " 1" : level < 0 ? " 2" : ""); + } + f->line_ref = f->line_num; +} + +static void tok_print(const char *msg, const int *str) +{ + FILE *pr = tcc_state->ppfp; + int t; + CValue cval; + + fprintf(pr, "%s ", msg); + while (str) { + TOK_GET(&t, &str, &cval); + if (!t) + break; + fprintf(pr,"%s", get_tok_str(t, &cval)); + } + fprintf(pr, "\n"); +} + +static int define_print_prepared(Sym *s) +{ + if (!s || !tcc_state->ppfp || tcc_state->dflag == 0) + return 0; + + if (s->v < TOK_IDENT || s->v >= tok_ident) + return 0; + + if (file) { + file->line_num--; + pp_line(tcc_state, file, 0); + file->line_ref = ++file->line_num; + } + return 1; +} + +static void define_print(int v) +{ + FILE *pr = tcc_state->ppfp; + Sym *s, *a; + + s = define_find(v); + if (define_print_prepared(s) == 0) + return; + + fprintf(pr, "// #define %s", get_tok_str(v, NULL)); + if (s->type.t == MACRO_FUNC) { + a = s->next; + fprintf(pr,"("); + if (a) + for (;;) { + fprintf(pr,"%s", get_tok_str(a->v & ~SYM_FIELD, NULL)); + if (!(a = a->next)) + break; + fprintf(pr,","); + } + fprintf(pr,")"); + } + tok_print("", s->d); +} + +static void undef_print(int v) +{ + FILE *pr = tcc_state->ppfp; + Sym *s; + + s = define_find(v); + if (define_print_prepared(s) == 0) + return; + + fprintf(pr, "// #undef %s\n", get_tok_str(s->v, NULL)); +} + +ST_FUNC void print_defines(void) +{ + Sym *top = define_stack; + while (top) { + define_print(top->v); + top = top->prev; + } +} + +/* defines handling */ +ST_INLN void define_push(int v, int macro_type, int *str, Sym *first_arg) +{ + Sym *s; + + s = define_find(v); + if (s && !macro_is_equal(s->d, str)) + tcc_warning("%s redefined", get_tok_str(v, NULL)); + + s = sym_push2(&define_stack, v, macro_type, 0); + s->d = str; + s->next = first_arg; + table_ident[v - TOK_IDENT]->sym_define = s; +} + +/* undefined a define symbol. Its name is just set to zero */ +ST_FUNC void define_undef(Sym *s) +{ + int v = s->v; + undef_print(v); + if (v >= TOK_IDENT && v < tok_ident) + table_ident[v - TOK_IDENT]->sym_define = NULL; +} + +ST_INLN Sym *define_find(int v) +{ + v -= TOK_IDENT; + if ((unsigned)v >= (unsigned)(tok_ident - TOK_IDENT)) + return NULL; + return table_ident[v]->sym_define; +} + +/* free define stack until top reaches 'b' */ +ST_FUNC void free_defines(Sym *b) +{ + Sym *top, *top1; + int v; + + top = define_stack; + while (top != b) { + top1 = top->prev; + /* do not free args or predefined defines */ + if (top->d) + tok_str_free(top->d); + v = top->v; + if (v >= TOK_IDENT && v < tok_ident) + table_ident[v - TOK_IDENT]->sym_define = NULL; + sym_free(top); + top = top1; + } + define_stack = b; +} + +/* label lookup */ +ST_FUNC Sym *label_find(int v) +{ + v -= TOK_IDENT; + if ((unsigned)v >= (unsigned)(tok_ident - TOK_IDENT)) + return NULL; + return table_ident[v]->sym_label; +} + +ST_FUNC Sym *label_push(Sym **ptop, int v, int flags) +{ + Sym *s, **ps; + s = sym_push2(ptop, v, 0, 0); + s->r = flags; + ps = &table_ident[v - TOK_IDENT]->sym_label; + if (ptop == &global_label_stack) { + /* modify the top most local identifier, so that + sym_identifier will point to 's' when popped */ + while (*ps != NULL) + ps = &(*ps)->prev_tok; + } + s->prev_tok = *ps; + *ps = s; + return s; +} + +/* pop labels until element last is reached. Look if any labels are + undefined. Define symbols if '&&label' was used. */ +ST_FUNC void label_pop(Sym **ptop, Sym *slast) +{ + Sym *s, *s1; + for(s = *ptop; s != slast; s = s1) { + s1 = s->prev; + if (s->r == LABEL_DECLARED) { + tcc_warning("label '%s' declared but not used", get_tok_str(s->v, NULL)); + } else if (s->r == LABEL_FORWARD) { + tcc_error("label '%s' used but not defined", + get_tok_str(s->v, NULL)); + } else { + if (s->c) { + /* define corresponding symbol. A size of + 1 is put. */ + put_extern_sym(s, cur_text_section, s->jnext, 1); + } + } + /* remove label */ + table_ident[s->v - TOK_IDENT]->sym_label = s->prev_tok; + sym_free(s); + } + *ptop = slast; +} + +/* eval an expression for #if/#elif */ +static int expr_preprocess(void) +{ + int c, t; + TokenString str; + + tok_str_new(&str); + while (tok != TOK_LINEFEED && tok != TOK_EOF) { + next(); /* do macro subst */ + if (tok == TOK_DEFINED) { + next_nomacro(); + t = tok; + if (t == '(') + next_nomacro(); + c = define_find(tok) != 0; + if (t == '(') + next_nomacro(); + tok = TOK_CINT; + tokc.i = c; + } else if (tok >= TOK_IDENT) { + /* if undefined macro */ + tok = TOK_CINT; + tokc.i = 0; + } + tok_str_add_tok(&str); + } + tok_str_add(&str, -1); /* simulate end of file */ + tok_str_add(&str, 0); + /* now evaluate C constant expression */ + begin_macro(&str, 0); + next(); + c = expr_const(); + end_macro(); + return c != 0; +} + + +/* parse after #define */ +ST_FUNC void parse_define(void) +{ + Sym *s, *first, **ps; + int v, t, varg, is_vaargs, spc; + int saved_parse_flags = parse_flags; + TokenString str; + + v = tok; + if (v < TOK_IDENT) + tcc_error("invalid macro name '%s'", get_tok_str(tok, &tokc)); + /* XXX: should check if same macro (ANSI) */ + first = NULL; + t = MACRO_OBJ; + /* '(' must be just after macro definition for MACRO_FUNC */ + parse_flags |= PARSE_FLAG_SPACES; + next_nomacro_spc(); + if (tok == '(') { + next_nomacro(); + ps = &first; + if (tok != ')') for (;;) { + varg = tok; + next_nomacro(); + is_vaargs = 0; + if (varg == TOK_DOTS) { + varg = TOK___VA_ARGS__; + is_vaargs = 1; + } else if (tok == TOK_DOTS && gnu_ext) { + is_vaargs = 1; + next_nomacro(); + } + if (varg < TOK_IDENT) + bad_list: + tcc_error("bad macro parameter list"); + s = sym_push2(&define_stack, varg | SYM_FIELD, is_vaargs, 0); + *ps = s; + ps = &s->next; + if (tok == ')') + break; + if (tok != ',' || is_vaargs) + goto bad_list; + next_nomacro(); + } + next_nomacro_spc(); + t = MACRO_FUNC; + } + tok_str_new(&str); + spc = 2; + parse_flags |= PARSE_FLAG_ACCEPT_STRAYS | PARSE_FLAG_SPACES | PARSE_FLAG_LINEFEED; + while (tok != TOK_LINEFEED && tok != TOK_EOF) { + /* remove spaces around ## and after '#' */ + if (TOK_TWOSHARPS == tok) { + if (2 == spc) + goto bad_twosharp; + if (1 == spc) + --str.len; + spc = 3; + } else if ('#' == tok) { + spc = 4; + } else if (check_space(tok, &spc)) { + goto skip; + } + tok_str_add2(&str, tok, &tokc); + skip: + next_nomacro_spc(); + } + + parse_flags = saved_parse_flags; + if (spc == 1) + --str.len; /* remove trailing space */ + tok_str_add(&str, 0); + if (3 == spc) +bad_twosharp: + tcc_error("'##' cannot appear at either end of macro"); + define_push(v, t, str.str, first); + define_print(v); +} + +static inline int hash_cached_include(const char *filename) +{ + const unsigned char *s; + unsigned int h; + + h = TOK_HASH_INIT; + s = (unsigned char *) filename; + while (*s) { + h = TOK_HASH_FUNC(h, *s); + s++; + } + h &= (CACHED_INCLUDES_HASH_SIZE - 1); + return h; +} + +static CachedInclude *search_cached_include(TCCState *s1, const char *filename) +{ + CachedInclude *e; + int i, h; + h = hash_cached_include(filename); + i = s1->cached_includes_hash[h]; + for(;;) { + if (i == 0) + break; + e = s1->cached_includes[i - 1]; + if (0 == PATHCMP(e->filename, filename)) + return e; + i = e->hash_next; + } + return NULL; +} + +static inline void add_cached_include(TCCState *s1, const char *filename, int ifndef_macro) +{ + CachedInclude *e; + int h; + + if (search_cached_include(s1, filename)) + return; +#ifdef INC_DEBUG + printf("adding cached '%s' %s\n", filename, get_tok_str(ifndef_macro, NULL)); +#endif + e = tcc_malloc(sizeof(CachedInclude) + strlen(filename)); + strcpy(e->filename, filename); + e->ifndef_macro = ifndef_macro; + dynarray_add((void ***)&s1->cached_includes, &s1->nb_cached_includes, e); + /* add in hash table */ + h = hash_cached_include(filename); + e->hash_next = s1->cached_includes_hash[h]; + s1->cached_includes_hash[h] = s1->nb_cached_includes; +} + +static void pragma_parse(TCCState *s1) +{ + next_nomacro(); + if (tok == TOK_push_macro || tok == TOK_pop_macro) { + int t = tok, v; + Sym *s; + + if (next(), tok != '(') + goto pragma_err; + if (next(), tok != TOK_STR) + goto pragma_err; + v = tok_alloc(tokc.str.data, tokc.str.size - 1)->tok; + if (next(), tok != ')') + goto pragma_err; + if (t == TOK_push_macro) { + while (NULL == (s = define_find(v))) + define_push(v, 0, NULL, NULL); + s->type.ref = s; /* set push boundary */ + } else { + for (s = define_stack; s; s = s->prev) + if (s->v == v && s->type.ref == s) { + s->type.ref = NULL; + break; + } + } + if (s) + table_ident[v - TOK_IDENT]->sym_define = s->d ? s : NULL; + else + tcc_warning("unbalanced #pragma pop_macro"); + + } else if (tok == TOK_once) { + add_cached_include(s1, file->filename, TOK_once); + + } else if (s1->ppfp) { + /* tcc -E: keep pragmas below unchanged */ + unget_tok(' '); + unget_tok(TOK_PRAGMA); + unget_tok('#'); + unget_tok(TOK_LINEFEED); + + } else if (tok == TOK_pack) { + /* This may be: + #pragma pack(1) // set + #pragma pack() // reset to default + #pragma pack(push,1) // push & set + #pragma pack(pop) // restore previous */ + next(); + skip('('); + if (tok == TOK_ASM_pop) { + next(); + if (s1->pack_stack_ptr <= s1->pack_stack) { + stk_error: + tcc_error("out of pack stack"); + } + s1->pack_stack_ptr--; + } else { + int val = 0; + if (tok != ')') { + if (tok == TOK_ASM_push) { + next(); + if (s1->pack_stack_ptr >= s1->pack_stack + PACK_STACK_SIZE - 1) + goto stk_error; + s1->pack_stack_ptr++; + skip(','); + } + if (tok != TOK_CINT) + goto pragma_err; + val = tokc.i; + if (val < 1 || val > 16 || (val & (val - 1)) != 0) + goto pragma_err; + next(); + } + *s1->pack_stack_ptr = val; + } + if (tok != ')') + goto pragma_err; + + } else if (tok == TOK_comment) { + char *file; + next(); + skip('('); + if (tok != TOK_lib) + goto pragma_warn; + next(); + skip(','); + if (tok != TOK_STR) + goto pragma_err; + file = tcc_strdup((char *)tokc.str.data); + dynarray_add((void ***)&s1->pragma_libs, &s1->nb_pragma_libs, file); + next(); + if (tok != ')') + goto pragma_err; + } else { +pragma_warn: + if (s1->warn_unsupported) + tcc_warning("#pragma %s is ignored", get_tok_str(tok, &tokc)); + } + return; + +pragma_err: + tcc_error("malformed #pragma directive"); + return; +} + +/* is_bof is true if first non space token at beginning of file */ +ST_FUNC void preprocess(int is_bof) +{ + TCCState *s1 = tcc_state; + int i, c, n, saved_parse_flags; + char buf[1024], *q; + Sym *s; + + saved_parse_flags = parse_flags; + parse_flags = PARSE_FLAG_PREPROCESS + | PARSE_FLAG_TOK_NUM + | PARSE_FLAG_TOK_STR + | PARSE_FLAG_LINEFEED + | (parse_flags & PARSE_FLAG_ASM_FILE) + ; + + next_nomacro(); + redo: + switch(tok) { + case TOK_DEFINE: + next_nomacro(); + parse_define(); + break; + case TOK_UNDEF: + next_nomacro(); + s = define_find(tok); + /* undefine symbol by putting an invalid name */ + if (s) + define_undef(s); + break; + case TOK_INCLUDE: + case TOK_INCLUDE_NEXT: + ch = file->buf_ptr[0]; + /* XXX: incorrect if comments : use next_nomacro with a special mode */ + skip_spaces(); + if (ch == '<') { + c = '>'; + goto read_name; + } else if (ch == '\"') { + c = ch; + read_name: + inp(); + q = buf; + while (ch != c && ch != '\n' && ch != CH_EOF) { + if ((q - buf) < sizeof(buf) - 1) + *q++ = ch; + if (ch == '\\') { + if (handle_stray_noerror() == 0) + --q; + } else + inp(); + } + *q = '\0'; + minp(); +#if 0 + /* eat all spaces and comments after include */ + /* XXX: slightly incorrect */ + while (ch1 != '\n' && ch1 != CH_EOF) + inp(); +#endif + } else { + /* computed #include : either we have only strings or + we have anything enclosed in '<>' */ + next(); + buf[0] = '\0'; + if (tok == TOK_STR) { + while (tok != TOK_LINEFEED) { + if (tok != TOK_STR) { + include_syntax: + tcc_error("'#include' expects \"FILENAME\" or "); + } + pstrcat(buf, sizeof(buf), (char *)tokc.str.data); + next(); + } + c = '\"'; + } else { + int len; + while (tok != TOK_LINEFEED) { + pstrcat(buf, sizeof(buf), get_tok_str(tok, &tokc)); + next(); + } + len = strlen(buf); + /* check syntax and remove '<>' */ + if (len < 2 || buf[0] != '<' || buf[len - 1] != '>') + goto include_syntax; + memmove(buf, buf + 1, len - 2); + buf[len - 2] = '\0'; + c = '>'; + } + } + + if (s1->include_stack_ptr >= s1->include_stack + INCLUDE_STACK_SIZE) + tcc_error("#include recursion too deep"); + /* store current file in stack, but increment stack later below */ + *s1->include_stack_ptr = file; + i = tok == TOK_INCLUDE_NEXT ? file->include_next_index : 0; + n = 2 + s1->nb_include_paths + s1->nb_sysinclude_paths; + for (; i < n; ++i) { + char buf1[sizeof file->filename]; + CachedInclude *e; + const char *path; + + if (i == 0) { + /* check absolute include path */ + if (!IS_ABSPATH(buf)) + continue; + buf1[0] = 0; + + } else if (i == 1) { + /* search in current dir if "header.h" */ + if (c != '\"') + continue; + path = file->filename; + pstrncpy(buf1, path, tcc_basename(path) - path); + + } else { + /* search in all the include paths */ + int j = i - 2, k = j - s1->nb_include_paths; + path = k < 0 ? s1->include_paths[j] : s1->sysinclude_paths[k]; + pstrcpy(buf1, sizeof(buf1), path); + pstrcat(buf1, sizeof(buf1), "/"); + } + + pstrcat(buf1, sizeof(buf1), buf); + e = search_cached_include(s1, buf1); + if (e && (define_find(e->ifndef_macro) || e->ifndef_macro == TOK_once)) { + /* no need to parse the include because the 'ifndef macro' + is defined */ +#ifdef INC_DEBUG + printf("%s: skipping cached %s\n", file->filename, buf1); +#endif + goto include_done; + } + + if (tcc_open(s1, buf1) < 0) + continue; + + file->include_next_index = i + 1; +#ifdef INC_DEBUG + printf("%s: including %s\n", file->prev->filename, file->filename); +#endif + /* update target deps */ + dynarray_add((void ***)&s1->target_deps, &s1->nb_target_deps, + tcc_strdup(buf1)); + /* push current file in stack */ + ++s1->include_stack_ptr; + /* add include file debug info */ + if (s1->do_debug) + put_stabs(file->filename, N_BINCL, 0, 0, 0); + tok_flags |= TOK_FLAG_BOF | TOK_FLAG_BOL; + ch = file->buf_ptr[0]; + goto the_end; + } + tcc_error("include file '%s' not found", buf); +include_done: + break; + case TOK_IFNDEF: + c = 1; + goto do_ifdef; + case TOK_IF: + c = expr_preprocess(); + goto do_if; + case TOK_IFDEF: + c = 0; + do_ifdef: + next_nomacro(); + if (tok < TOK_IDENT) + tcc_error("invalid argument for '#if%sdef'", c ? "n" : ""); + if (is_bof) { + if (c) { +#ifdef INC_DEBUG + printf("#ifndef %s\n", get_tok_str(tok, NULL)); +#endif + file->ifndef_macro = tok; + } + } + c = (define_find(tok) != 0) ^ c; + do_if: + if (s1->ifdef_stack_ptr >= s1->ifdef_stack + IFDEF_STACK_SIZE) + tcc_error("memory full (ifdef)"); + *s1->ifdef_stack_ptr++ = c; + goto test_skip; + case TOK_ELSE: + if (s1->ifdef_stack_ptr == s1->ifdef_stack) + tcc_error("#else without matching #if"); + if (s1->ifdef_stack_ptr[-1] & 2) + tcc_error("#else after #else"); + c = (s1->ifdef_stack_ptr[-1] ^= 3); + goto test_else; + case TOK_ELIF: + if (s1->ifdef_stack_ptr == s1->ifdef_stack) + tcc_error("#elif without matching #if"); + c = s1->ifdef_stack_ptr[-1]; + if (c > 1) + tcc_error("#elif after #else"); + /* last #if/#elif expression was true: we skip */ + if (c == 1) + goto skip; + c = expr_preprocess(); + s1->ifdef_stack_ptr[-1] = c; + test_else: + if (s1->ifdef_stack_ptr == file->ifdef_stack_ptr + 1) + file->ifndef_macro = 0; + test_skip: + if (!(c & 1)) { + skip: + preprocess_skip(); + is_bof = 0; + goto redo; + } + break; + case TOK_ENDIF: + if (s1->ifdef_stack_ptr <= file->ifdef_stack_ptr) + tcc_error("#endif without matching #if"); + s1->ifdef_stack_ptr--; + /* '#ifndef macro' was at the start of file. Now we check if + an '#endif' is exactly at the end of file */ + if (file->ifndef_macro && + s1->ifdef_stack_ptr == file->ifdef_stack_ptr) { + file->ifndef_macro_saved = file->ifndef_macro; + /* need to set to zero to avoid false matches if another + #ifndef at middle of file */ + file->ifndef_macro = 0; + while (tok != TOK_LINEFEED) + next_nomacro(); + tok_flags |= TOK_FLAG_ENDIF; + goto the_end; + } + break; + case TOK_PPNUM: + n = strtoul((char*)tokc.str.data, &q, 10); + goto _line_num; + case TOK_LINE: + next(); + if (tok != TOK_CINT) +_line_err: + tcc_error("wrong #line format"); + n = tokc.i; +_line_num: + next(); + if (tok != TOK_LINEFEED) { + if (tok == TOK_STR) + pstrcpy(file->filename, sizeof(file->filename), (char *)tokc.str.data); + else if (parse_flags & PARSE_FLAG_ASM_FILE) + break; + else + goto _line_err; + --n; + } + if (file->fd > 0) + total_lines += file->line_num - n; + file->line_num = n; + if (s1->do_debug) + put_stabs(file->filename, N_BINCL, 0, 0, 0); + break; + case TOK_ERROR: + case TOK_WARNING: + c = tok; + ch = file->buf_ptr[0]; + skip_spaces(); + q = buf; + while (ch != '\n' && ch != CH_EOF) { + if ((q - buf) < sizeof(buf) - 1) + *q++ = ch; + if (ch == '\\') { + if (handle_stray_noerror() == 0) + --q; + } else + inp(); + } + *q = '\0'; + if (c == TOK_ERROR) + tcc_error("#error %s", buf); + else + tcc_warning("#warning %s", buf); + break; + case TOK_PRAGMA: + pragma_parse(s1); + break; + case TOK_LINEFEED: + goto the_end; + default: + /* ignore gas line comment in an 'S' file. */ + if (saved_parse_flags & PARSE_FLAG_ASM_FILE) + goto ignore; + if (tok == '!' && is_bof) + /* '!' is ignored at beginning to allow C scripts. */ + goto ignore; + tcc_warning("Ignoring unknown preprocessing directive #%s", get_tok_str(tok, &tokc)); + ignore: + file->buf_ptr = parse_line_comment(file->buf_ptr); + goto the_end; + } + /* ignore other preprocess commands or #! for C scripts */ + while (tok != TOK_LINEFEED) + next_nomacro(); + the_end: + parse_flags = saved_parse_flags; +} + +/* evaluate escape codes in a string. */ +static void parse_escape_string(CString *outstr, const uint8_t *buf, int is_long) +{ + int c, n; + const uint8_t *p; + + p = buf; + for(;;) { + c = *p; + if (c == '\0') + break; + if (c == '\\') { + p++; + /* escape */ + c = *p; + switch(c) { + case '0': case '1': case '2': case '3': + case '4': case '5': case '6': case '7': + /* at most three octal digits */ + n = c - '0'; + p++; + c = *p; + if (isoct(c)) { + n = n * 8 + c - '0'; + p++; + c = *p; + if (isoct(c)) { + n = n * 8 + c - '0'; + p++; + } + } + c = n; + goto add_char_nonext; + case 'x': + case 'u': + case 'U': + p++; + n = 0; + for(;;) { + c = *p; + if (c >= 'a' && c <= 'f') + c = c - 'a' + 10; + else if (c >= 'A' && c <= 'F') + c = c - 'A' + 10; + else if (isnum(c)) + c = c - '0'; + else + break; + n = n * 16 + c; + p++; + } + c = n; + goto add_char_nonext; + case 'a': + c = '\a'; + break; + case 'b': + c = '\b'; + break; + case 'f': + c = '\f'; + break; + case 'n': + c = '\n'; + break; + case 'r': + c = '\r'; + break; + case 't': + c = '\t'; + break; + case 'v': + c = '\v'; + break; + case 'e': + if (!gnu_ext) + goto invalid_escape; + c = 27; + break; + case '\'': + case '\"': + case '\\': + case '?': + break; + default: + invalid_escape: + if (c >= '!' && c <= '~') + tcc_warning("unknown escape sequence: \'\\%c\'", c); + else + tcc_warning("unknown escape sequence: \'\\x%x\'", c); + break; + } + } + p++; + add_char_nonext: + if (!is_long) + cstr_ccat(outstr, c); + else + cstr_wccat(outstr, c); + } + /* add a trailing '\0' */ + if (!is_long) + cstr_ccat(outstr, '\0'); + else + cstr_wccat(outstr, '\0'); +} + +void parse_string(const char *s, int len) +{ + uint8_t buf[1000], *p = buf; + int is_long, sep; + + if ((is_long = *s == 'L')) + ++s, --len; + sep = *s++; + len -= 2; + if (len >= sizeof buf) + p = tcc_malloc(len + 1); + memcpy(p, s, len); + p[len] = 0; + + cstr_reset(&tokcstr); + parse_escape_string(&tokcstr, p, is_long); + if (p != buf) + tcc_free(p); + + if (sep == '\'') { + int char_size; + /* XXX: make it portable */ + if (!is_long) + char_size = 1; + else + char_size = sizeof(nwchar_t); + if (tokcstr.size <= char_size) + tcc_error("empty character constant"); + if (tokcstr.size > 2 * char_size) + tcc_warning("multi-character character constant"); + if (!is_long) { + tokc.i = *(int8_t *)tokcstr.data; + tok = TOK_CCHAR; + } else { + tokc.i = *(nwchar_t *)tokcstr.data; + tok = TOK_LCHAR; + } + } else { + tokc.str.size = tokcstr.size; + tokc.str.data = tokcstr.data; + tokc.str.data_allocated = tokcstr.data_allocated; + if (!is_long) + tok = TOK_STR; + else + tok = TOK_LSTR; + } +} + +/* we use 64 bit numbers */ +#define BN_SIZE 2 + +/* bn = (bn << shift) | or_val */ +static void bn_lshift(unsigned int *bn, int shift, int or_val) +{ + int i; + unsigned int v; + for(i=0;i> (32 - shift); + } +} + +static void bn_zero(unsigned int *bn) +{ + int i; + for(i=0;i= 'a' && ch <= 'f') + t = ch - 'a' + 10; + else if (ch >= 'A' && ch <= 'F') + t = ch - 'A' + 10; + else if (isnum(ch)) + t = ch - '0'; + else + break; + if (t >= b) + break; + if (q >= token_buf + STRING_MAX_SIZE) { + num_too_long: + tcc_error("number too long"); + } + *q++ = ch; + ch = *p++; + } + if (ch == '.' || + ((ch == 'e' || ch == 'E') && b == 10) || + ((ch == 'p' || ch == 'P') && (b == 16 || b == 2))) { + if (b != 10) { + /* NOTE: strtox should support that for hexa numbers, but + non ISOC99 libcs do not support it, so we prefer to do + it by hand */ + /* hexadecimal or binary floats */ + /* XXX: handle overflows */ + *q = '\0'; + if (b == 16) + shift = 4; + else + shift = 1; + bn_zero(bn); + q = token_buf; + while (1) { + t = *q++; + if (t == '\0') { + break; + } else if (t >= 'a') { + t = t - 'a' + 10; + } else if (t >= 'A') { + t = t - 'A' + 10; + } else { + t = t - '0'; + } + bn_lshift(bn, shift, t); + } + frac_bits = 0; + if (ch == '.') { + ch = *p++; + while (1) { + t = ch; + if (t >= 'a' && t <= 'f') { + t = t - 'a' + 10; + } else if (t >= 'A' && t <= 'F') { + t = t - 'A' + 10; + } else if (t >= '0' && t <= '9') { + t = t - '0'; + } else { + break; + } + if (t >= b) + tcc_error("invalid digit"); + bn_lshift(bn, shift, t); + frac_bits += shift; + ch = *p++; + } + } + if (ch != 'p' && ch != 'P') + expect("exponent"); + ch = *p++; + s = 1; + exp_val = 0; + if (ch == '+') { + ch = *p++; + } else if (ch == '-') { + s = -1; + ch = *p++; + } + if (ch < '0' || ch > '9') + expect("exponent digits"); + while (ch >= '0' && ch <= '9') { + exp_val = exp_val * 10 + ch - '0'; + ch = *p++; + } + exp_val = exp_val * s; + + /* now we can generate the number */ + /* XXX: should patch directly float number */ + d = (double)bn[1] * 4294967296.0 + (double)bn[0]; + d = ldexp(d, exp_val - frac_bits); + t = toup(ch); + if (t == 'F') { + ch = *p++; + tok = TOK_CFLOAT; + /* float : should handle overflow */ + tokc.f = (float)d; + } else if (t == 'L') { + ch = *p++; +#ifdef TCC_TARGET_PE + tok = TOK_CDOUBLE; + tokc.d = d; +#else + tok = TOK_CLDOUBLE; + /* XXX: not large enough */ + tokc.ld = (long double)d; +#endif + } else { + tok = TOK_CDOUBLE; + tokc.d = d; + } + } else { + /* decimal floats */ + if (ch == '.') { + if (q >= token_buf + STRING_MAX_SIZE) + goto num_too_long; + *q++ = ch; + ch = *p++; + float_frac_parse: + while (ch >= '0' && ch <= '9') { + if (q >= token_buf + STRING_MAX_SIZE) + goto num_too_long; + *q++ = ch; + ch = *p++; + } + } + if (ch == 'e' || ch == 'E') { + if (q >= token_buf + STRING_MAX_SIZE) + goto num_too_long; + *q++ = ch; + ch = *p++; + if (ch == '-' || ch == '+') { + if (q >= token_buf + STRING_MAX_SIZE) + goto num_too_long; + *q++ = ch; + ch = *p++; + } + if (ch < '0' || ch > '9') + expect("exponent digits"); + while (ch >= '0' && ch <= '9') { + if (q >= token_buf + STRING_MAX_SIZE) + goto num_too_long; + *q++ = ch; + ch = *p++; + } + } + *q = '\0'; + t = toup(ch); + errno = 0; + if (t == 'F') { + ch = *p++; + tok = TOK_CFLOAT; + tokc.f = strtof(token_buf, NULL); + } else if (t == 'L') { + ch = *p++; +#ifdef TCC_TARGET_PE + tok = TOK_CDOUBLE; + tokc.d = strtod(token_buf, NULL); +#else + tok = TOK_CLDOUBLE; + tokc.ld = strtold(token_buf, NULL); +#endif + } else { + tok = TOK_CDOUBLE; + tokc.d = strtod(token_buf, NULL); + } + } + } else { + unsigned long long n, n1; + int lcount, ucount, must_64bit; + const char *p1; + + /* integer number */ + *q = '\0'; + q = token_buf; + if (b == 10 && *q == '0') { + b = 8; + q++; + } + n = 0; + while(1) { + t = *q++; + /* no need for checks except for base 10 / 8 errors */ + if (t == '\0') + break; + else if (t >= 'a') + t = t - 'a' + 10; + else if (t >= 'A') + t = t - 'A' + 10; + else + t = t - '0'; + if (t >= b) + tcc_error("invalid digit"); + n1 = n; + n = n * b + t; + /* detect overflow */ + /* XXX: this test is not reliable */ + if (n < n1) + tcc_error("integer constant overflow"); + } + + /* Determine the characteristics (unsigned and/or 64bit) the type of + the constant must have according to the constant suffix(es) */ + lcount = ucount = must_64bit = 0; + p1 = p; + for(;;) { + t = toup(ch); + if (t == 'L') { + if (lcount >= 2) + tcc_error("three 'l's in integer constant"); + if (lcount && *(p - 1) != ch) + tcc_error("incorrect integer suffix: %s", p1); + lcount++; +#if !defined TCC_TARGET_X86_64 || defined TCC_TARGET_PE + if (lcount == 2) +#endif + must_64bit = 1; + ch = *p++; + } else if (t == 'U') { + if (ucount >= 1) + tcc_error("two 'u's in integer constant"); + ucount++; + ch = *p++; + } else { + break; + } + } + + /* Whether 64 bits are needed to hold the constant's value */ + if (n & 0xffffffff00000000LL || must_64bit) { + tok = TOK_CLLONG; + n1 = n >> 32; + } else { + tok = TOK_CINT; + n1 = n; + } + + /* Whether type must be unsigned to hold the constant's value */ + if (ucount || ((n1 >> 31) && (b != 10))) { + if (tok == TOK_CLLONG) + tok = TOK_CULLONG; + else + tok = TOK_CUINT; + /* If decimal and no unsigned suffix, bump to 64 bits or throw error */ + } else if (n1 >> 31) { + if (tok == TOK_CINT) + tok = TOK_CLLONG; + else + tcc_error("integer constant overflow"); + } + + if (tok == TOK_CINT || tok == TOK_CUINT) + tokc.i = n; + else + tokc.i = n; + } + if (ch) + tcc_error("invalid number\n"); +} + + +#define PARSE2(c1, tok1, c2, tok2) \ + case c1: \ + PEEKC(c, p); \ + if (c == c2) { \ + p++; \ + tok = tok2; \ + } else { \ + tok = tok1; \ + } \ + break; + +/* return next token without macro substitution */ +static inline void next_nomacro1(void) +{ + int t, c, is_long; + TokenSym *ts; + uint8_t *p, *p1; + unsigned int h; + + p = file->buf_ptr; + redo_no_start: + c = *p; + switch(c) { + case ' ': + case '\t': + tok = c; + p++; + if (parse_flags & PARSE_FLAG_SPACES) + goto keep_tok_flags; + while (isidnum_table[*p - CH_EOF] & IS_SPC) + ++p; + goto redo_no_start; + case '\f': + case '\v': + case '\r': + p++; + goto redo_no_start; + case '\\': + /* first look if it is in fact an end of buffer */ + c = handle_stray1(p); + p = file->buf_ptr; + if (c == '\\') + goto parse_simple; + if (c != CH_EOF) + goto redo_no_start; + { + TCCState *s1 = tcc_state; + if ((parse_flags & PARSE_FLAG_LINEFEED) + && !(tok_flags & TOK_FLAG_EOF)) { + tok_flags |= TOK_FLAG_EOF; + tok = TOK_LINEFEED; + goto keep_tok_flags; + } else if (!(parse_flags & PARSE_FLAG_PREPROCESS)) { + tok = TOK_EOF; + } else if (s1->ifdef_stack_ptr != file->ifdef_stack_ptr) { + tcc_error("missing #endif"); + } else if (s1->include_stack_ptr == s1->include_stack) { + /* no include left : end of file. */ + tok = TOK_EOF; + } else { + tok_flags &= ~TOK_FLAG_EOF; + /* pop include file */ + + /* test if previous '#endif' was after a #ifdef at + start of file */ + if (tok_flags & TOK_FLAG_ENDIF) { +#ifdef INC_DEBUG + printf("#endif %s\n", get_tok_str(file->ifndef_macro_saved, NULL)); +#endif + add_cached_include(s1, file->filename, file->ifndef_macro_saved); + tok_flags &= ~TOK_FLAG_ENDIF; + } + + /* add end of include file debug info */ + if (tcc_state->do_debug) { + put_stabd(N_EINCL, 0, 0); + } + /* pop include stack */ + tcc_close(); + s1->include_stack_ptr--; + p = file->buf_ptr; + goto redo_no_start; + } + } + break; + + case '\n': + file->line_num++; + tok_flags |= TOK_FLAG_BOL; + p++; +maybe_newline: + if (0 == (parse_flags & PARSE_FLAG_LINEFEED)) + goto redo_no_start; + tok = TOK_LINEFEED; + goto keep_tok_flags; + + case '#': + /* XXX: simplify */ + PEEKC(c, p); + if ((tok_flags & TOK_FLAG_BOL) && + (parse_flags & PARSE_FLAG_PREPROCESS)) { + file->buf_ptr = p; + preprocess(tok_flags & TOK_FLAG_BOF); + p = file->buf_ptr; + goto maybe_newline; + } else { + if (c == '#') { + p++; + tok = TOK_TWOSHARPS; + } else { + if (parse_flags & PARSE_FLAG_ASM_FILE) { + p = parse_line_comment(p - 1); + goto redo_no_start; + } else { + tok = '#'; + } + } + } + break; + + /* dollar is allowed to start identifiers when not parsing asm */ + case '$': + if (!(isidnum_table[c - CH_EOF] & IS_ID) + || (parse_flags & PARSE_FLAG_ASM_FILE)) + goto parse_simple; + + case 'a': case 'b': case 'c': case 'd': + case 'e': case 'f': case 'g': case 'h': + case 'i': case 'j': case 'k': case 'l': + case 'm': case 'n': case 'o': case 'p': + case 'q': case 'r': case 's': case 't': + case 'u': case 'v': case 'w': case 'x': + case 'y': case 'z': + case 'A': case 'B': case 'C': case 'D': + case 'E': case 'F': case 'G': case 'H': + case 'I': case 'J': case 'K': + case 'M': case 'N': case 'O': case 'P': + case 'Q': case 'R': case 'S': case 'T': + case 'U': case 'V': case 'W': case 'X': + case 'Y': case 'Z': + case '_': + parse_ident_fast: + p1 = p; + h = TOK_HASH_INIT; + h = TOK_HASH_FUNC(h, c); + while (c = *++p, isidnum_table[c - CH_EOF] & (IS_ID|IS_NUM)) + h = TOK_HASH_FUNC(h, c); + if (c != '\\') { + TokenSym **pts; + int len; + + /* fast case : no stray found, so we have the full token + and we have already hashed it */ + len = p - p1; + h &= (TOK_HASH_SIZE - 1); + pts = &hash_ident[h]; + for(;;) { + ts = *pts; + if (!ts) + break; + if (ts->len == len && !memcmp(ts->str, p1, len)) + goto token_found; + pts = &(ts->hash_next); + } + ts = tok_alloc_new(pts, (char *) p1, len); + token_found: ; + } else { + /* slower case */ + cstr_reset(&tokcstr); + + while (p1 < p) { + cstr_ccat(&tokcstr, *p1); + p1++; + } + p--; + PEEKC(c, p); + parse_ident_slow: + while (isidnum_table[c - CH_EOF] & (IS_ID|IS_NUM)) { + cstr_ccat(&tokcstr, c); + PEEKC(c, p); + } + ts = tok_alloc(tokcstr.data, tokcstr.size); + } + tok = ts->tok; + break; + case 'L': + t = p[1]; + if (t != '\\' && t != '\'' && t != '\"') { + /* fast case */ + goto parse_ident_fast; + } else { + PEEKC(c, p); + if (c == '\'' || c == '\"') { + is_long = 1; + goto str_const; + } else { + cstr_reset(&tokcstr); + cstr_ccat(&tokcstr, 'L'); + goto parse_ident_slow; + } + } + break; + + case '0': case '1': case '2': case '3': + case '4': case '5': case '6': case '7': + case '8': case '9': + cstr_reset(&tokcstr); + /* after the first digit, accept digits, alpha, '.' or sign if + prefixed by 'eEpP' */ + parse_num: + for(;;) { + t = c; + cstr_ccat(&tokcstr, c); + PEEKC(c, p); + if (!((isidnum_table[c - CH_EOF] & (IS_ID|IS_NUM)) + || c == '.' + || ((c == '+' || c == '-') + && (t == 'e' || t == 'E' || t == 'p' || t == 'P') + ))) + break; + } + /* We add a trailing '\0' to ease parsing */ + cstr_ccat(&tokcstr, '\0'); + tokc.str.size = tokcstr.size; + tokc.str.data = tokcstr.data; + tokc.str.data_allocated = tokcstr.data_allocated; + tok = TOK_PPNUM; + break; + + case '.': + /* special dot handling because it can also start a number */ + PEEKC(c, p); + if (isnum(c)) { + cstr_reset(&tokcstr); + cstr_ccat(&tokcstr, '.'); + goto parse_num; + } else if ((isidnum_table['.' - CH_EOF] & IS_ID) != 0) { /* asm mode */ + *--p = c = '.'; + goto parse_ident_fast; + } else if (c == '.') { + PEEKC(c, p); + if (c == '.') { + p++; + tok = TOK_DOTS; + } else { + *--p = '.'; /* may underflow into file->unget[] */ + tok = '.'; + } + } else { + tok = '.'; + } + break; + case '\'': + case '\"': + is_long = 0; + str_const: + cstr_reset(&tokcstr); + if (is_long) + cstr_ccat(&tokcstr, 'L'); + cstr_ccat(&tokcstr, c); + p = parse_pp_string(p, c, &tokcstr); + cstr_ccat(&tokcstr, c); + cstr_ccat(&tokcstr, '\0'); + tokc.str.size = tokcstr.size; + tokc.str.data = tokcstr.data; + tokc.str.data_allocated = tokcstr.data_allocated; + tok = TOK_PPSTR; + break; + + case '<': + PEEKC(c, p); + if (c == '=') { + p++; + tok = TOK_LE; + } else if (c == '<') { + PEEKC(c, p); + if (c == '=') { + p++; + tok = TOK_A_SHL; + } else { + tok = TOK_SHL; + } + } else { + tok = TOK_LT; + } + break; + case '>': + PEEKC(c, p); + if (c == '=') { + p++; + tok = TOK_GE; + } else if (c == '>') { + PEEKC(c, p); + if (c == '=') { + p++; + tok = TOK_A_SAR; + } else { + tok = TOK_SAR; + } + } else { + tok = TOK_GT; + } + break; + + case '&': + PEEKC(c, p); + if (c == '&') { + p++; + tok = TOK_LAND; + } else if (c == '=') { + p++; + tok = TOK_A_AND; + } else { + tok = '&'; + } + break; + + case '|': + PEEKC(c, p); + if (c == '|') { + p++; + tok = TOK_LOR; + } else if (c == '=') { + p++; + tok = TOK_A_OR; + } else { + tok = '|'; + } + break; + + case '+': + PEEKC(c, p); + if (c == '+') { + p++; + tok = TOK_INC; + } else if (c == '=') { + p++; + tok = TOK_A_ADD; + } else { + tok = '+'; + } + break; + + case '-': + PEEKC(c, p); + if (c == '-') { + p++; + tok = TOK_DEC; + } else if (c == '=') { + p++; + tok = TOK_A_SUB; + } else if (c == '>') { + p++; + tok = TOK_ARROW; + } else { + tok = '-'; + } + break; + + PARSE2('!', '!', '=', TOK_NE) + PARSE2('=', '=', '=', TOK_EQ) + PARSE2('*', '*', '=', TOK_A_MUL) + PARSE2('%', '%', '=', TOK_A_MOD) + PARSE2('^', '^', '=', TOK_A_XOR) + + /* comments or operator */ + case '/': + PEEKC(c, p); + if (c == '*') { + p = parse_comment(p); + /* comments replaced by a blank */ + tok = ' '; + goto keep_tok_flags; + } else if (c == '/') { + p = parse_line_comment(p); + tok = ' '; + goto keep_tok_flags; + } else if (c == '=') { + p++; + tok = TOK_A_DIV; + } else { + tok = '/'; + } + break; + + /* simple tokens */ + case '(': + case ')': + case '[': + case ']': + case '{': + case '}': + case ',': + case ';': + case ':': + case '?': + case '~': + case '@': /* only used in assembler */ + parse_simple: + tok = c; + p++; + break; + default: + tcc_error("unrecognized character \\x%02x", c); + break; + } + tok_flags = 0; +keep_tok_flags: + file->buf_ptr = p; +#if defined(PARSE_DEBUG) + printf("token = %s\n", get_tok_str(tok, &tokc)); +#endif +} + +/* return next token without macro substitution. Can read input from + macro_ptr buffer */ +static void next_nomacro_spc(void) +{ + if (macro_ptr) { + redo: + tok = *macro_ptr; + if (tok) { + TOK_GET(&tok, ¯o_ptr, &tokc); + if (tok == TOK_LINENUM) { + file->line_num = tokc.i; + goto redo; + } + } + } else { + next_nomacro1(); + } +} + +ST_FUNC void next_nomacro(void) +{ + do { + next_nomacro_spc(); + } while (tok < 256 && (isidnum_table[tok - CH_EOF] & IS_SPC)); +} + + +static void macro_subst( + TokenString *tok_str, + Sym **nested_list, + const int *macro_str, + int can_read_stream + ); + +/* substitute arguments in replacement lists in macro_str by the values in + args (field d) and return allocated string */ +static int *macro_arg_subst(Sym **nested_list, const int *macro_str, Sym *args) +{ + int t, t0, t1, spc; + const int *st; + Sym *s; + CValue cval; + TokenString str; + CString cstr; + + tok_str_new(&str); + t0 = t1 = 0; + while(1) { + TOK_GET(&t, ¯o_str, &cval); + if (!t) + break; + if (t == '#') { + /* stringize */ + TOK_GET(&t, ¯o_str, &cval); + if (!t) + goto bad_stringy; + s = sym_find2(args, t); + if (s) { + cstr_new(&cstr); + cstr_ccat(&cstr, '\"'); + st = s->d; + spc = 0; + while (*st) { + TOK_GET(&t, &st, &cval); + if (t != TOK_PLCHLDR + && t != TOK_NOSUBST + && 0 == check_space(t, &spc)) { + const char *s = get_tok_str(t, &cval); + while (*s) { + if (t == TOK_PPSTR && *s != '\'') + add_char(&cstr, *s); + else + cstr_ccat(&cstr, *s); + ++s; + } + } + } + cstr.size -= spc; + cstr_ccat(&cstr, '\"'); + cstr_ccat(&cstr, '\0'); +#ifdef PP_DEBUG + printf("\nstringize: <%s>\n", (char *)cstr.data); +#endif + /* add string */ + cval.str.size = cstr.size; + cval.str.data = cstr.data; + cval.str.data_allocated = cstr.data_allocated; + tok_str_add2(&str, TOK_PPSTR, &cval); + tcc_free(cval.str.data_allocated); + } else { + bad_stringy: + expect("macro parameter after '#'"); + } + } else if (t >= TOK_IDENT) { + s = sym_find2(args, t); + if (s) { + int l0 = str.len; + st = s->d; + /* if '##' is present before or after, no arg substitution */ + if (*macro_str == TOK_TWOSHARPS || t1 == TOK_TWOSHARPS) { + /* special case for var arg macros : ## eats the ',' + if empty VA_ARGS variable. */ + if (t1 == TOK_TWOSHARPS && t0 == ',' && gnu_ext && s->type.t) { + if (*st == 0) { + /* suppress ',' '##' */ + str.len -= 2; + } else { + /* suppress '##' and add variable */ + str.len--; + goto add_var; + } + } else { + for(;;) { + int t1; + TOK_GET(&t1, &st, &cval); + if (!t1) + break; + tok_str_add2(&str, t1, &cval); + } + } + + } else { + add_var: + /* NOTE: the stream cannot be read when macro + substituing an argument */ + macro_subst(&str, nested_list, st, 0); + } + if (str.len == l0) /* exanded to empty string */ + tok_str_add(&str, TOK_PLCHLDR); + } else { + tok_str_add(&str, t); + } + } else { + tok_str_add2(&str, t, &cval); + } + t0 = t1, t1 = t; + } + tok_str_add(&str, 0); + return str.str; +} + +static char const ab_month_name[12][4] = +{ + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" +}; + +/* peek or read [ws_str == NULL] next token from function macro call, + walking up macro levels up to the file if necessary */ +static int next_argstream(Sym **nested_list, int can_read_stream, TokenString *ws_str) +{ + int t; + const int *p; + Sym *sa; + + for (;;) { + if (macro_ptr) { + p = macro_ptr, t = *p; + if (ws_str) { + while (is_space(t) || TOK_LINEFEED == t) + tok_str_add(ws_str, t), t = *++p; + } + if (t == 0 && can_read_stream) { + end_macro(); + /* also, end of scope for nested defined symbol */ + sa = *nested_list; + while (sa && sa->v == -1) + sa = sa->prev; + if (sa) + sa->v = -1; + continue; + } + } else { + ch = handle_eob(); + if (ws_str) { + while (is_space(ch) || ch == '\n' || ch == '/') { + if (ch == '/') { + int c; + uint8_t *p = file->buf_ptr; + PEEKC(c, p); + if (c == '*') { + p = parse_comment(p); + file->buf_ptr = p - 1; + } else if (c == '/') { + p = parse_line_comment(p); + file->buf_ptr = p - 1; + } else + break; + ch = ' '; + } + tok_str_add(ws_str, ch); + cinp(); + } + } + t = ch; + } + + if (ws_str) + return t; + next_nomacro_spc(); + return tok; + } +} + +/* do macro substitution of current token with macro 's' and add + result to (tok_str,tok_len). 'nested_list' is the list of all + macros we got inside to avoid recursing. Return non zero if no + substitution needs to be done */ +static int macro_subst_tok( + TokenString *tok_str, + Sym **nested_list, + Sym *s, + int can_read_stream) +{ + Sym *args, *sa, *sa1; + int parlevel, *mstr, t, t1, spc; + TokenString str; + char *cstrval; + CValue cval; + CString cstr; + char buf[32]; + + /* if symbol is a macro, prepare substitution */ + /* special macros */ + if (tok == TOK___LINE__) { + snprintf(buf, sizeof(buf), "%d", file->line_num); + cstrval = buf; + t1 = TOK_PPNUM; + goto add_cstr1; + } else if (tok == TOK___FILE__) { + cstrval = file->filename; + goto add_cstr; + } else if (tok == TOK___DATE__ || tok == TOK___TIME__) { + time_t ti; + struct tm *tm; + + time(&ti); + tm = localtime(&ti); + if (tok == TOK___DATE__) { + snprintf(buf, sizeof(buf), "%s %2d %d", + ab_month_name[tm->tm_mon], tm->tm_mday, tm->tm_year + 1900); + } else { + snprintf(buf, sizeof(buf), "%02d:%02d:%02d", + tm->tm_hour, tm->tm_min, tm->tm_sec); + } + cstrval = buf; + add_cstr: + t1 = TOK_STR; + add_cstr1: + cstr_new(&cstr); + cstr_cat(&cstr, cstrval); + cstr_ccat(&cstr, '\0'); + cval.str.size = cstr.size; + cval.str.data = cstr.data; + cval.str.data_allocated = cstr.data_allocated; + tok_str_add2(tok_str, t1, &cval); + cstr_free(&cstr); + } else { + int saved_parse_flags = parse_flags; + + mstr = s->d; + if (s->type.t == MACRO_FUNC) { + /* whitespace between macro name and argument list */ + TokenString ws_str; + tok_str_new(&ws_str); + + spc = 0; + parse_flags |= PARSE_FLAG_SPACES | PARSE_FLAG_LINEFEED + | PARSE_FLAG_ACCEPT_STRAYS; + + /* get next token from argument stream */ + t = next_argstream(nested_list, can_read_stream, &ws_str); + if (t != '(') { + /* not a macro substitution after all, restore the + * macro token plus all whitespace we've read. + * whitespace is intentionally not merged to preserve + * newlines. */ + parse_flags = saved_parse_flags; + tok_str_add(tok_str, tok); + if (parse_flags & PARSE_FLAG_SPACES) { + int i; + for (i = 0; i < ws_str.len; i++) + tok_str_add(tok_str, ws_str.str[i]); + } + tok_str_free(ws_str.str); + return 0; + } else { + tok_str_free(ws_str.str); + } + next_nomacro(); /* eat '(' */ + + /* argument macro */ + args = NULL; + sa = s->next; + /* NOTE: empty args are allowed, except if no args */ + for(;;) { + do { + next_argstream(nested_list, can_read_stream, NULL); + } while (is_space(tok) || TOK_LINEFEED == tok); + empty_arg: + /* handle '()' case */ + if (!args && !sa && tok == ')') + break; + if (!sa) + tcc_error("macro '%s' used with too many args", + get_tok_str(s->v, 0)); + tok_str_new(&str); + parlevel = spc = 0; + /* NOTE: non zero sa->t indicates VA_ARGS */ + while ((parlevel > 0 || + (tok != ')' && + (tok != ',' || sa->type.t)))) { + if (tok == TOK_EOF || tok == 0) + break; + if (tok == '(') + parlevel++; + else if (tok == ')') + parlevel--; + if (tok == TOK_LINEFEED) + tok = ' '; + if (!check_space(tok, &spc)) + tok_str_add2(&str, tok, &tokc); + next_argstream(nested_list, can_read_stream, NULL); + } + if (parlevel) + expect(")"); + str.len -= spc; + tok_str_add(&str, 0); + sa1 = sym_push2(&args, sa->v & ~SYM_FIELD, sa->type.t, 0); + sa1->d = str.str; + sa = sa->next; + if (tok == ')') { + /* special case for gcc var args: add an empty + var arg argument if it is omitted */ + if (sa && sa->type.t && gnu_ext) + goto empty_arg; + break; + } + if (tok != ',') + expect(","); + } + if (sa) { + tcc_error("macro '%s' used with too few args", + get_tok_str(s->v, 0)); + } + + parse_flags = saved_parse_flags; + + /* now subst each arg */ + mstr = macro_arg_subst(nested_list, mstr, args); + /* free memory */ + sa = args; + while (sa) { + sa1 = sa->prev; + tok_str_free(sa->d); + sym_free(sa); + sa = sa1; + } + } + + sym_push2(nested_list, s->v, 0, 0); + parse_flags = saved_parse_flags; + macro_subst(tok_str, nested_list, mstr, can_read_stream); + + /* pop nested defined symbol */ + sa1 = *nested_list; + *nested_list = sa1->prev; + sym_free(sa1); + if (mstr != s->d) + tok_str_free(mstr); + } + return 0; +} + +int paste_tokens(int t1, CValue *v1, int t2, CValue *v2) +{ + CString cstr; + int n; + + cstr_new(&cstr); + if (t1 != TOK_PLCHLDR) + cstr_cat(&cstr, get_tok_str(t1, v1)); + n = cstr.size; + if (t2 != TOK_PLCHLDR) + cstr_cat(&cstr, get_tok_str(t2, v2)); + cstr_ccat(&cstr, '\0'); + + tcc_open_bf(tcc_state, ":paste:", cstr.size); + memcpy(file->buffer, cstr.data, cstr.size); + for (;;) { + next_nomacro1(); + if (0 == *file->buf_ptr) + break; + if (is_space(tok)) + continue; + tcc_warning("pasting <%.*s> and <%s> does not give a valid preprocessing token", + n, cstr.data, (char*)cstr.data + n); + break; + } + tcc_close(); + + //printf("paste <%s>\n", (char*)cstr.data); + cstr_free(&cstr); + return 0; +} + +/* handle the '##' operator. Return NULL if no '##' seen. Otherwise + return the resulting string (which must be freed). */ +static inline int *macro_twosharps(const int *ptr0) +{ + int t; + CValue cval; + TokenString macro_str1; + int start_of_nosubsts = -1; + const int *ptr; + + /* we search the first '##' */ + for (ptr = ptr0;;) { + TOK_GET(&t, &ptr, &cval); + if (t == TOK_TWOSHARPS) + break; + if (t == 0) + return NULL; + } + + tok_str_new(¯o_str1); + + //tok_print(" $$$", ptr0); + for (ptr = ptr0;;) { + TOK_GET(&t, &ptr, &cval); + if (t == 0) + break; + if (t == TOK_TWOSHARPS) + continue; + while (*ptr == TOK_TWOSHARPS) { + int t1; CValue cv1; + /* given 'a##b', remove nosubsts preceding 'a' */ + if (start_of_nosubsts >= 0) + macro_str1.len = start_of_nosubsts; + /* given 'a##b', remove nosubsts preceding 'b' */ + while ((t1 = *++ptr) == TOK_NOSUBST) + ; + if (t1 && t1 != TOK_TWOSHARPS + && t1 != ':') /* 'a##:' don't build a new token */ + { + TOK_GET(&t1, &ptr, &cv1); + if (t != TOK_PLCHLDR || t1 != TOK_PLCHLDR) { + paste_tokens(t, &cval, t1, &cv1); + t = tok, cval = tokc; + } + } + } + if (t == TOK_NOSUBST) { + if (start_of_nosubsts < 0) + start_of_nosubsts = macro_str1.len; + } else { + start_of_nosubsts = -1; + } + tok_str_add2(¯o_str1, t, &cval); + } + tok_str_add(¯o_str1, 0); + //tok_print(" ###", macro_str1.str); + return macro_str1.str; +} + +/* do macro substitution of macro_str and add result to + (tok_str,tok_len). 'nested_list' is the list of all macros we got + inside to avoid recursing. */ +static void macro_subst( + TokenString *tok_str, + Sym **nested_list, + const int *macro_str, + int can_read_stream + ) +{ + Sym *s; + const int *ptr; + int t, spc, nosubst; + CValue cval; + int *macro_str1 = NULL; + + /* first scan for '##' operator handling */ + ptr = macro_str; + spc = nosubst = 0; + + /* first scan for '##' operator handling */ + if (can_read_stream) { + macro_str1 = macro_twosharps(ptr); + if (macro_str1) + ptr = macro_str1; + } + + while (1) { + TOK_GET(&t, &ptr, &cval); + if (t == 0) + break; + + if (t >= TOK_IDENT && 0 == nosubst) { + s = define_find(t); + if (s == NULL) + goto no_subst; + + /* if nested substitution, do nothing */ + if (sym_find2(*nested_list, t)) { + /* and mark it as TOK_NOSUBST, so it doesn't get subst'd again */ + tok_str_add2(tok_str, TOK_NOSUBST, NULL); + goto no_subst; + } + + { + TokenString str; + str.str = (int*)ptr; + begin_macro(&str, 2); + + tok = t; + macro_subst_tok(tok_str, nested_list, s, can_read_stream); + + if (str.alloc == 3) { + /* already finished by reading function macro arguments */ + break; + } + + ptr = macro_ptr; + end_macro (); + } + + spc = (tok_str->len && + is_space(tok_last(tok_str->str, + tok_str->str + tok_str->len))); + + } else { + + if (t == '\\' && !(parse_flags & PARSE_FLAG_ACCEPT_STRAYS)) + tcc_error("stray '\\' in program"); + +no_subst: + if (!check_space(t, &spc)) + tok_str_add2(tok_str, t, &cval); + nosubst = 0; + if (t == TOK_NOSUBST) + nosubst = 1; + } + } + if (macro_str1) + tok_str_free(macro_str1); + +} + +/* return next token with macro substitution */ +ST_FUNC void next(void) +{ + redo: + if (parse_flags & PARSE_FLAG_SPACES) + next_nomacro_spc(); + else + next_nomacro(); + + if (macro_ptr) { + if (tok == TOK_NOSUBST || tok == TOK_PLCHLDR) { + /* discard preprocessor markers */ + goto redo; + } else if (tok == 0) { + /* end of macro or unget token string */ + end_macro(); + goto redo; + } + } else if (tok >= TOK_IDENT && (parse_flags & PARSE_FLAG_PREPROCESS)) { + Sym *s; + /* if reading from file, try to substitute macros */ + s = define_find(tok); + if (s) { + static TokenString str; /* using static string for speed */ + Sym *nested_list = NULL; + tok_str_new(&str); + nested_list = NULL; + macro_subst_tok(&str, &nested_list, s, 1); + tok_str_add(&str, 0); + begin_macro(&str, 0); + goto redo; + } + } + /* convert preprocessor tokens into C tokens */ + if (tok == TOK_PPNUM) { + if (parse_flags & PARSE_FLAG_TOK_NUM) + parse_number((char *)tokc.str.data); + } else if (tok == TOK_PPSTR) { + if (parse_flags & PARSE_FLAG_TOK_STR) + parse_string((char *)tokc.str.data, tokc.str.size - 1); + } +} + +/* push back current token and set current token to 'last_tok'. Only + identifier case handled for labels. */ +ST_INLN void unget_tok(int last_tok) +{ + TokenString *str = tcc_malloc(sizeof *str); + tok_str_new(str); + tok_str_add2(str, tok, &tokc); + tok_str_add(str, 0); + begin_macro(str, 1); + tok = last_tok; +} + +/* better than nothing, but needs extension to handle '-E' option + correctly too */ +ST_FUNC void preprocess_init(TCCState *s1) +{ + s1->include_stack_ptr = s1->include_stack; + /* XXX: move that before to avoid having to initialize + file->ifdef_stack_ptr ? */ + s1->ifdef_stack_ptr = s1->ifdef_stack; + file->ifdef_stack_ptr = s1->ifdef_stack_ptr; + + pvtop = vtop = vstack - 1; + s1->pack_stack[0] = 0; + s1->pack_stack_ptr = s1->pack_stack; + + isidnum_table['$' - CH_EOF] = (parse_flags & PARSE_FLAG_ASM_FILE) || + tcc_state->dollars_in_identifiers ? IS_ID : 0; + isidnum_table['.' - CH_EOF] = (parse_flags & PARSE_FLAG_ASM_FILE) ? IS_ID : 0; +} + +ST_FUNC void preprocess_new(void) +{ + int i, c; + const char *p, *r; + + /* init isid table */ + for(i = CH_EOF; i<256; i++) + isidnum_table[i - CH_EOF] + = is_space(i) ? IS_SPC + : isid(i) ? IS_ID + : isnum(i) ? IS_NUM + : 0; + + memset(hash_ident, 0, TOK_HASH_SIZE * sizeof(TokenSym *)); + + tok_ident = TOK_IDENT; + p = tcc_keywords; + while (*p) { + r = p; + for(;;) { + c = *r++; + if (c == '\0') + break; + } + tok_alloc(p, r - p - 1); + p = r; + } +} + +ST_FUNC void preprocess_delete(void) +{ + int i, n; + + /* free -D and compiler defines */ + free_defines(NULL); + + /* cleanup from error/setjmp */ + while (macro_stack) + end_macro(); + macro_ptr = NULL; + + /* free tokens */ + n = tok_ident - TOK_IDENT; + for(i = 0; i < n; i++) + tcc_free(table_ident[i]); + tcc_free(table_ident); + table_ident = NULL; +} + +/* Preprocess the current file */ +ST_FUNC int tcc_preprocess(TCCState *s1) +{ + BufferedFile **iptr; + int token_seen, spcs, level; + + preprocess_init(s1); + ch = file->buf_ptr[0]; + tok_flags = TOK_FLAG_BOL | TOK_FLAG_BOF; + parse_flags = PARSE_FLAG_PREPROCESS + | (parse_flags & PARSE_FLAG_ASM_FILE) + | PARSE_FLAG_LINEFEED + | PARSE_FLAG_SPACES + | PARSE_FLAG_ACCEPT_STRAYS + ; + +#ifdef PP_BENCH + do next(); while (tok != TOK_EOF); return 0; +#endif + + token_seen = spcs = 0; + pp_line(s1, file, 0); + + for (;;) { + iptr = s1->include_stack_ptr; + next(); + if (tok == TOK_EOF) + break; + level = s1->include_stack_ptr - iptr; + if (level) { + if (level > 0) + pp_line(s1, *iptr, 0); + pp_line(s1, file, level); + } + + if (0 == token_seen) { + if (tok == ' ') { + ++spcs; + continue; + } + if (tok == TOK_LINEFEED) { + spcs = 0; + continue; + } + pp_line(s1, file, 0); + while (spcs) + fputs(" ", s1->ppfp), --spcs; + token_seen = 1; + + } else if (tok == TOK_LINEFEED) { + ++file->line_ref; + token_seen = 0; + } + + fputs(get_tok_str(tok, &tokc), s1->ppfp); + } + + return 0; +} diff --git a/external/TCC/tccrun.c b/external/TCC/tccrun.c new file mode 100644 index 00000000..25191053 --- /dev/null +++ b/external/TCC/tccrun.c @@ -0,0 +1,772 @@ +/* + * TCC - Tiny C Compiler - Support for -run switch + * + * Copyright (c) 2001-2004 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "tcc.h" + +/* only native compiler supports -run */ +#ifdef TCC_IS_NATIVE + +#ifdef CONFIG_TCC_BACKTRACE +ST_DATA int rt_num_callers = 6; +ST_DATA const char **rt_bound_error_msg; +ST_DATA void *rt_prog_main; +#endif + +#ifdef _WIN32 +#define ucontext_t CONTEXT +#endif + +static void set_pages_executable(void *ptr, unsigned long length); +static void set_exception_handler(void); +static int rt_get_caller_pc(addr_t *paddr, ucontext_t *uc, int level); +static void rt_error(ucontext_t *uc, const char *fmt, ...); +static int tcc_relocate_ex(TCCState *s1, void *ptr); + +#ifdef _WIN64 +static void win64_add_function_table(TCCState *s1); +#endif + +/* ------------------------------------------------------------- */ +/* Do all relocations (needed before using tcc_get_symbol()) + Returns -1 on error. */ + +LIBTCCAPI int tcc_relocate(TCCState *s1, void *ptr) +{ + int ret; + + if (TCC_RELOCATE_AUTO != ptr) + return tcc_relocate_ex(s1, ptr); + + ret = tcc_relocate_ex(s1, NULL); + if (ret < 0) + return ret; + +#ifdef HAVE_SELINUX + { /* Use mmap instead of malloc for Selinux. Ref: + http://www.gnu.org/s/libc/manual/html_node/File-Size.html */ + + char tmpfname[] = "/tmp/.tccrunXXXXXX"; + int fd = mkstemp (tmpfname); + + s1->mem_size = ret; + unlink (tmpfname); + ftruncate (fd, s1->mem_size); + + s1->write_mem = mmap (NULL, ret, PROT_READ|PROT_WRITE, + MAP_SHARED, fd, 0); + if (s1->write_mem == MAP_FAILED) + tcc_error("/tmp not writeable"); + + s1->runtime_mem = mmap (NULL, ret, PROT_READ|PROT_EXEC, + MAP_SHARED, fd, 0); + if (s1->runtime_mem == MAP_FAILED) + tcc_error("/tmp not executable"); + + ret = tcc_relocate_ex(s1, s1->write_mem); + } +#else + s1->runtime_mem = tcc_malloc(ret); + ret = tcc_relocate_ex(s1, s1->runtime_mem); +#endif + return ret; +} + +/* launch the compiled program with the given arguments */ +LIBTCCAPI int tcc_run(TCCState *s1, int argc, char **argv) +{ + int (*prog_main)(int, char **); + int ret; + + if (tcc_relocate(s1, TCC_RELOCATE_AUTO) < 0) + return -1; + + prog_main = tcc_get_symbol_err(s1, s1->runtime_main); + +#ifdef CONFIG_TCC_BACKTRACE + if (s1->do_debug) { + set_exception_handler(); + rt_prog_main = prog_main; + } +#endif + +#ifdef CONFIG_TCC_BCHECK + if (s1->do_bounds_check) { + void (*bound_init)(void); + void (*bound_exit)(void); + void (*bound_new_region)(void *p, addr_t size); + int (*bound_delete_region)(void *p); + int i; + + /* set error function */ + rt_bound_error_msg = tcc_get_symbol_err(s1, "__bound_error_msg"); + /* XXX: use .init section so that it also work in binary ? */ + bound_init = tcc_get_symbol_err(s1, "__bound_init"); + bound_exit = tcc_get_symbol_err(s1, "__bound_exit"); + bound_new_region = tcc_get_symbol_err(s1, "__bound_new_region"); + bound_delete_region = tcc_get_symbol_err(s1, "__bound_delete_region"); + bound_init(); + /* mark argv area as valid */ + bound_new_region(argv, argc*sizeof(argv[0])); + for (i=0; inb_errors = 0; +#ifdef TCC_TARGET_PE + pe_output_file(s1, NULL); +#else + tcc_add_runtime(s1); + relocate_common_syms(); + tcc_add_linker_symbols(s1); + build_got_entries(s1); +#endif + if (s1->nb_errors) + return -1; + } + + offset = 0, mem = (addr_t)ptr; + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + if (0 == (s->sh_flags & SHF_ALLOC)) + continue; + length = s->data_offset; + s->sh_addr = mem ? (mem + offset + 15) & ~15 : 0; + offset = (offset + length + 15) & ~15; + } + offset += 16; + + /* relocate symbols */ + relocate_syms(s1, 1); + if (s1->nb_errors) + return -1; + + if (0 == mem) + return offset; + + /* relocate each section */ + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + if (s->reloc) + relocate_section(s1, s); + } + relocate_plt(s1); + + for(i = 1; i < s1->nb_sections; i++) { + s = s1->sections[i]; + if (0 == (s->sh_flags & SHF_ALLOC)) + continue; + length = s->data_offset; + // printf("%-12s %08lx %04x\n", s->name, s->sh_addr, length); + ptr = (void*)s->sh_addr; + if (NULL == s->data || s->sh_type == SHT_NOBITS) + memset(ptr, 0, length); + else + memcpy(ptr, s->data, length); + /* mark executable sections as executable in memory */ + if (s->sh_flags & SHF_EXECINSTR) + set_pages_executable(ptr, length); + } + +#ifdef _WIN64 + win64_add_function_table(s1); +#endif + return 0; +} + +/* ------------------------------------------------------------- */ +/* allow to run code in memory */ + +static void set_pages_executable(void *ptr, unsigned long length) +{ +#ifdef _WIN32 + unsigned long old_protect; + VirtualProtect(ptr, length, PAGE_EXECUTE_READWRITE, &old_protect); +#else + extern void __clear_cache(void *beginning, void *end); +#ifndef PAGESIZE +# define PAGESIZE 4096 +#endif + addr_t start, end; + start = (addr_t)ptr & ~(PAGESIZE - 1); + end = (addr_t)ptr + length; + end = (end + PAGESIZE - 1) & ~(PAGESIZE - 1); + mprotect((void *)start, end - start, PROT_READ | PROT_WRITE | PROT_EXEC); + __clear_cache(ptr, (char *)ptr + length); +#endif +} + +/* ------------------------------------------------------------- */ +#ifdef CONFIG_TCC_BACKTRACE + +ST_FUNC void tcc_set_num_callers(int n) +{ + rt_num_callers = n; +} + +/* print the position in the source file of PC value 'pc' by reading + the stabs debug information */ +static addr_t rt_printline(addr_t wanted_pc, const char *msg) +{ + char func_name[128], last_func_name[128]; + addr_t func_addr, last_pc, pc; + const char *incl_files[INCLUDE_STACK_SIZE]; + int incl_index, len, last_line_num, i; + const char *str, *p; + + Stab_Sym *stab_sym = NULL, *stab_sym_end, *sym; + int stab_len = 0; + char *stab_str = NULL; + + if (stab_section) { + stab_len = stab_section->data_offset; + stab_sym = (Stab_Sym *)stab_section->data; + stab_str = (char *) stabstr_section->data; + } + + func_name[0] = '\0'; + func_addr = 0; + incl_index = 0; + last_func_name[0] = '\0'; + last_pc = (addr_t)-1; + last_line_num = 1; + + if (!stab_sym) + goto no_stabs; + + stab_sym_end = (Stab_Sym*)((char*)stab_sym + stab_len); + for (sym = stab_sym + 1; sym < stab_sym_end; ++sym) { + switch(sym->n_type) { + /* function start or end */ + case N_FUN: + if (sym->n_strx == 0) { + /* we test if between last line and end of function */ + pc = sym->n_value + func_addr; + if (wanted_pc >= last_pc && wanted_pc < pc) + goto found; + func_name[0] = '\0'; + func_addr = 0; + } else { + str = stab_str + sym->n_strx; + p = strchr(str, ':'); + if (!p) { + pstrcpy(func_name, sizeof(func_name), str); + } else { + len = p - str; + if (len > sizeof(func_name) - 1) + len = sizeof(func_name) - 1; + memcpy(func_name, str, len); + func_name[len] = '\0'; + } + func_addr = sym->n_value; + } + break; + /* line number info */ + case N_SLINE: + pc = sym->n_value + func_addr; + if (wanted_pc >= last_pc && wanted_pc < pc) + goto found; + last_pc = pc; + last_line_num = sym->n_desc; + /* XXX: slow! */ + strcpy(last_func_name, func_name); + break; + /* include files */ + case N_BINCL: + str = stab_str + sym->n_strx; + add_incl: + if (incl_index < INCLUDE_STACK_SIZE) { + incl_files[incl_index++] = str; + } + break; + case N_EINCL: + if (incl_index > 1) + incl_index--; + break; + case N_SO: + if (sym->n_strx == 0) { + incl_index = 0; /* end of translation unit */ + } else { + str = stab_str + sym->n_strx; + /* do not add path */ + len = strlen(str); + if (len > 0 && str[len - 1] != '/') + goto add_incl; + } + break; + } + } + +no_stabs: + /* second pass: we try symtab symbols (no line number info) */ + incl_index = 0; + if (symtab_section) + { + ElfW(Sym) *sym, *sym_end; + int type; + + sym_end = (ElfW(Sym) *)(symtab_section->data + symtab_section->data_offset); + for(sym = (ElfW(Sym) *)symtab_section->data + 1; + sym < sym_end; + sym++) { + type = ELFW(ST_TYPE)(sym->st_info); + if (type == STT_FUNC || type == STT_GNU_IFUNC) { + if (wanted_pc >= sym->st_value && + wanted_pc < sym->st_value + sym->st_size) { + pstrcpy(last_func_name, sizeof(last_func_name), + (char *) strtab_section->data + sym->st_name); + func_addr = sym->st_value; + goto found; + } + } + } + } + /* did not find any info: */ + fprintf(stderr, "%s %p ???\n", msg, (void*)wanted_pc); + fflush(stderr); + return 0; + found: + i = incl_index; + if (i > 0) + fprintf(stderr, "%s:%d: ", incl_files[--i], last_line_num); + fprintf(stderr, "%s %p", msg, (void*)wanted_pc); + if (last_func_name[0] != '\0') + fprintf(stderr, " %s()", last_func_name); + if (--i >= 0) { + fprintf(stderr, " (included from "); + for (;;) { + fprintf(stderr, "%s", incl_files[i]); + if (--i < 0) + break; + fprintf(stderr, ", "); + } + fprintf(stderr, ")"); + } + fprintf(stderr, "\n"); + fflush(stderr); + return func_addr; +} + +/* emit a run time error at position 'pc' */ +static void rt_error(ucontext_t *uc, const char *fmt, ...) +{ + va_list ap; + addr_t pc; + int i; + + fprintf(stderr, "Runtime error: "); + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + fprintf(stderr, "\n"); + + for(i=0;isi_code) { + case FPE_INTDIV: + case FPE_FLTDIV: + rt_error(uc, "division by zero"); + break; + default: + rt_error(uc, "floating point exception"); + break; + } + break; + case SIGBUS: + case SIGSEGV: + if (rt_bound_error_msg && *rt_bound_error_msg) + rt_error(uc, *rt_bound_error_msg); + else + rt_error(uc, "dereferencing invalid pointer"); + break; + case SIGILL: + rt_error(uc, "illegal instruction"); + break; + case SIGABRT: + rt_error(uc, "abort() called"); + break; + default: + rt_error(uc, "caught signal %d", signum); + break; + } + exit(255); +} + +#ifndef SA_SIGINFO +# define SA_SIGINFO 0x00000004u +#endif + +/* Generate a stack backtrace when a CPU exception occurs. */ +static void set_exception_handler(void) +{ + struct sigaction sigact; + /* install TCC signal handlers to print debug info on fatal + runtime errors */ + sigact.sa_flags = SA_SIGINFO | SA_RESETHAND; + sigact.sa_sigaction = sig_error; + sigemptyset(&sigact.sa_mask); + sigaction(SIGFPE, &sigact, NULL); + sigaction(SIGILL, &sigact, NULL); + sigaction(SIGSEGV, &sigact, NULL); + sigaction(SIGBUS, &sigact, NULL); + sigaction(SIGABRT, &sigact, NULL); +} + +/* ------------------------------------------------------------- */ +#ifdef __i386__ + +/* fix for glibc 2.1 */ +#ifndef REG_EIP +#define REG_EIP EIP +#define REG_EBP EBP +#endif + +/* return the PC at frame level 'level'. Return negative if not found */ +static int rt_get_caller_pc(addr_t *paddr, ucontext_t *uc, int level) +{ + addr_t fp; + int i; + + if (level == 0) { +#if defined(__APPLE__) + *paddr = uc->uc_mcontext->__ss.__eip; +#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) + *paddr = uc->uc_mcontext.mc_eip; +#elif defined(__dietlibc__) + *paddr = uc->uc_mcontext.eip; +#elif defined(__NetBSD__) + *paddr = uc->uc_mcontext.__gregs[_REG_EIP]; +#else + *paddr = uc->uc_mcontext.gregs[REG_EIP]; +#endif + return 0; + } else { +#if defined(__APPLE__) + fp = uc->uc_mcontext->__ss.__ebp; +#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) + fp = uc->uc_mcontext.mc_ebp; +#elif defined(__dietlibc__) + fp = uc->uc_mcontext.ebp; +#elif defined(__NetBSD__) + fp = uc->uc_mcontext.__gregs[_REG_EBP]; +#else + fp = uc->uc_mcontext.gregs[REG_EBP]; +#endif + for(i=1;i= 0xc0000000) + return -1; + fp = ((addr_t *)fp)[0]; + } + *paddr = ((addr_t *)fp)[1]; + return 0; + } +} + +/* ------------------------------------------------------------- */ +#elif defined(__x86_64__) + +/* return the PC at frame level 'level'. Return negative if not found */ +static int rt_get_caller_pc(addr_t *paddr, ucontext_t *uc, int level) +{ + addr_t fp; + int i; + + if (level == 0) { + /* XXX: only support linux */ +#if defined(__APPLE__) + *paddr = uc->uc_mcontext->__ss.__rip; +#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) + *paddr = uc->uc_mcontext.mc_rip; +#elif defined(__NetBSD__) + *paddr = uc->uc_mcontext.__gregs[_REG_RIP]; +#else + *paddr = uc->uc_mcontext.gregs[REG_RIP]; +#endif + return 0; + } else { +#if defined(__APPLE__) + fp = uc->uc_mcontext->__ss.__rbp; +#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) + fp = uc->uc_mcontext.mc_rbp; +#elif defined(__NetBSD__) + fp = uc->uc_mcontext.__gregs[_REG_RBP]; +#else + fp = uc->uc_mcontext.gregs[REG_RBP]; +#endif + for(i=1;iuc_mcontext.arm_pc; +#else + return -1; +#endif + return 0; + } else { +#if defined(__linux__) + fp = uc->uc_mcontext.arm_fp; + sp = uc->uc_mcontext.arm_sp; + if (sp < 0x1000) + sp = 0x1000; +#else + return -1; +#endif + /* XXX: specific to tinycc stack frames */ + if (fp < sp + 12 || fp & 3) + return -1; + for(i = 1; i < level; i++) { + sp = ((addr_t *)fp)[-2]; + if (sp < fp || sp - fp > 16 || sp & 3) + return -1; + fp = ((addr_t *)fp)[-3]; + if (fp <= sp || fp - sp < 12 || fp & 3) + return -1; + } + /* XXX: check address validity with program info */ + *paddr = ((addr_t *)fp)[-1]; + return 0; + } +} + +/* ------------------------------------------------------------- */ +#elif defined(__aarch64__) + +static int rt_get_caller_pc(addr_t *paddr, ucontext_t *uc, int level) +{ + if (level < 0) + return -1; + else if (level == 0) { + *paddr = uc->uc_mcontext.pc; + return 0; + } + else { + addr_t *fp = (addr_t *)uc->uc_mcontext.regs[29]; + int i; + for (i = 1; i < level; i++) + fp = (addr_t *)fp[0]; + *paddr = fp[1]; + return 0; + } +} + +/* ------------------------------------------------------------- */ +#else + +#warning add arch specific rt_get_caller_pc() +static int rt_get_caller_pc(addr_t *paddr, ucontext_t *uc, int level) +{ + return -1; +} + +#endif /* !__i386__ */ + +/* ------------------------------------------------------------- */ +#else /* WIN32 */ + +static long __stdcall cpu_exception_handler(EXCEPTION_POINTERS *ex_info) +{ + EXCEPTION_RECORD *er = ex_info->ExceptionRecord; + CONTEXT *uc = ex_info->ContextRecord; + switch (er->ExceptionCode) { + case EXCEPTION_ACCESS_VIOLATION: + if (rt_bound_error_msg && *rt_bound_error_msg) + rt_error(uc, *rt_bound_error_msg); + else + rt_error(uc, "access violation"); + break; + case EXCEPTION_STACK_OVERFLOW: + rt_error(uc, "stack overflow"); + break; + case EXCEPTION_INT_DIVIDE_BY_ZERO: + rt_error(uc, "division by zero"); + break; + default: + rt_error(uc, "exception caught"); + break; + } + return EXCEPTION_EXECUTE_HANDLER; +} + +/* Generate a stack backtrace when a CPU exception occurs. */ +static void set_exception_handler(void) +{ + SetUnhandledExceptionFilter(cpu_exception_handler); +} + +#ifdef _WIN64 +static void win64_add_function_table(TCCState *s1) +{ + RtlAddFunctionTable( + (RUNTIME_FUNCTION*)s1->uw_pdata->sh_addr, + s1->uw_pdata->data_offset / sizeof (RUNTIME_FUNCTION), + text_section->sh_addr + ); +} +#endif + +/* return the PC at frame level 'level'. Return non zero if not found */ +static int rt_get_caller_pc(addr_t *paddr, CONTEXT *uc, int level) +{ + addr_t fp, pc; + int i; +#ifdef _WIN64 + pc = uc->Rip; + fp = uc->Rbp; +#else + pc = uc->Eip; + fp = uc->Ebp; +#endif + if (level > 0) { + for(i=1;i= 0xc0000000) + return -1; + fp = ((addr_t*)fp)[0]; + } + pc = ((addr_t*)fp)[1]; + } + *paddr = pc; + return 0; +} + +#endif /* _WIN32 */ +#endif /* CONFIG_TCC_BACKTRACE */ +/* ------------------------------------------------------------- */ +#ifdef CONFIG_TCC_STATIC + +/* dummy function for profiling */ +ST_FUNC void *dlopen(const char *filename, int flag) +{ + return NULL; +} + +ST_FUNC void dlclose(void *p) +{ +} + +ST_FUNC const char *dlerror(void) +{ + return "error"; +} + +typedef struct TCCSyms { + char *str; + void *ptr; +} TCCSyms; + + +/* add the symbol you want here if no dynamic linking is done */ +static TCCSyms tcc_syms[] = { +#if !defined(CONFIG_TCCBOOT) +#define TCCSYM(a) { #a, &a, }, + TCCSYM(printf) + TCCSYM(fprintf) + TCCSYM(fopen) + TCCSYM(fclose) +#undef TCCSYM +#endif + { NULL, NULL }, +}; + +ST_FUNC void *resolve_sym(TCCState *s1, const char *symbol) +{ + TCCSyms *p; + p = tcc_syms; + while (p->str != NULL) { + if (!strcmp(p->str, symbol)) + return p->ptr; + p++; + } + return NULL; +} + +#elif !defined(_WIN32) + +ST_FUNC void *resolve_sym(TCCState *s1, const char *sym) +{ + return dlsym(RTLD_DEFAULT, sym); +} + +#endif /* CONFIG_TCC_STATIC */ +#endif /* TCC_IS_NATIVE */ +/* ------------------------------------------------------------- */ diff --git a/external/TCC/tcctok.h b/external/TCC/tcctok.h new file mode 100644 index 00000000..b2fbebf6 --- /dev/null +++ b/external/TCC/tcctok.h @@ -0,0 +1,341 @@ +/* keywords */ + DEF(TOK_INT, "int") + DEF(TOK_VOID, "void") + DEF(TOK_CHAR, "char") + DEF(TOK_IF, "if") + DEF(TOK_ELSE, "else") + DEF(TOK_WHILE, "while") + DEF(TOK_BREAK, "break") + DEF(TOK_RETURN, "return") + DEF(TOK_FOR, "for") + DEF(TOK_EXTERN, "extern") + DEF(TOK_STATIC, "static") + DEF(TOK_UNSIGNED, "unsigned") + DEF(TOK_GOTO, "goto") + DEF(TOK_DO, "do") + DEF(TOK_CONTINUE, "continue") + DEF(TOK_SWITCH, "switch") + DEF(TOK_CASE, "case") + + DEF(TOK_CONST1, "const") + DEF(TOK_CONST2, "__const") /* gcc keyword */ + DEF(TOK_CONST3, "__const__") /* gcc keyword */ + DEF(TOK_VOLATILE1, "volatile") + DEF(TOK_VOLATILE2, "__volatile") /* gcc keyword */ + DEF(TOK_VOLATILE3, "__volatile__") /* gcc keyword */ + DEF(TOK_LONG, "long") + DEF(TOK_REGISTER, "register") + DEF(TOK_SIGNED1, "signed") + DEF(TOK_SIGNED2, "__signed") /* gcc keyword */ + DEF(TOK_SIGNED3, "__signed__") /* gcc keyword */ + DEF(TOK_AUTO, "auto") + DEF(TOK_INLINE1, "inline") + DEF(TOK_INLINE2, "__inline") /* gcc keyword */ + DEF(TOK_INLINE3, "__inline__") /* gcc keyword */ + DEF(TOK_RESTRICT1, "restrict") + DEF(TOK_RESTRICT2, "__restrict") + DEF(TOK_RESTRICT3, "__restrict__") + DEF(TOK_EXTENSION, "__extension__") /* gcc keyword */ + + DEF(TOK_FLOAT, "float") + DEF(TOK_DOUBLE, "double") + DEF(TOK_BOOL, "_Bool") + DEF(TOK_SHORT, "short") + DEF(TOK_STRUCT, "struct") + DEF(TOK_UNION, "union") + DEF(TOK_TYPEDEF, "typedef") + DEF(TOK_DEFAULT, "default") + DEF(TOK_ENUM, "enum") + DEF(TOK_SIZEOF, "sizeof") + DEF(TOK_ATTRIBUTE1, "__attribute") + DEF(TOK_ATTRIBUTE2, "__attribute__") + DEF(TOK_ALIGNOF1, "__alignof") + DEF(TOK_ALIGNOF2, "__alignof__") + DEF(TOK_TYPEOF1, "typeof") + DEF(TOK_TYPEOF2, "__typeof") + DEF(TOK_TYPEOF3, "__typeof__") + DEF(TOK_LABEL, "__label__") + DEF(TOK_ASM1, "asm") + DEF(TOK_ASM2, "__asm") + DEF(TOK_ASM3, "__asm__") + +#ifdef TCC_TARGET_ARM64 + DEF(TOK_UINT128, "__uint128_t") +#endif + +/*********************************************************************/ +/* the following are not keywords. They are included to ease parsing */ +/* preprocessor only */ + DEF(TOK_DEFINE, "define") + DEF(TOK_INCLUDE, "include") + DEF(TOK_INCLUDE_NEXT, "include_next") + DEF(TOK_IFDEF, "ifdef") + DEF(TOK_IFNDEF, "ifndef") + DEF(TOK_ELIF, "elif") + DEF(TOK_ENDIF, "endif") + DEF(TOK_DEFINED, "defined") + DEF(TOK_UNDEF, "undef") + DEF(TOK_ERROR, "error") + DEF(TOK_WARNING, "warning") + DEF(TOK_LINE, "line") + DEF(TOK_PRAGMA, "pragma") + DEF(TOK___LINE__, "__LINE__") + DEF(TOK___FILE__, "__FILE__") + DEF(TOK___DATE__, "__DATE__") + DEF(TOK___TIME__, "__TIME__") + DEF(TOK___FUNCTION__, "__FUNCTION__") + DEF(TOK___VA_ARGS__, "__VA_ARGS__") + +/* special identifiers */ + DEF(TOK___FUNC__, "__func__") + +/* special floating point values */ + DEF(TOK___NAN__, "__nan__") + DEF(TOK___SNAN__, "__snan__") + DEF(TOK___INF__, "__inf__") + +/* attribute identifiers */ +/* XXX: handle all tokens generically since speed is not critical */ + DEF(TOK_SECTION1, "section") + DEF(TOK_SECTION2, "__section__") + DEF(TOK_ALIGNED1, "aligned") + DEF(TOK_ALIGNED2, "__aligned__") + DEF(TOK_PACKED1, "packed") + DEF(TOK_PACKED2, "__packed__") + DEF(TOK_WEAK1, "weak") + DEF(TOK_WEAK2, "__weak__") + DEF(TOK_ALIAS1, "alias") + DEF(TOK_ALIAS2, "__alias__") + DEF(TOK_UNUSED1, "unused") + DEF(TOK_UNUSED2, "__unused__") + DEF(TOK_CDECL1, "cdecl") + DEF(TOK_CDECL2, "__cdecl") + DEF(TOK_CDECL3, "__cdecl__") + DEF(TOK_STDCALL1, "stdcall") + DEF(TOK_STDCALL2, "__stdcall") + DEF(TOK_STDCALL3, "__stdcall__") + DEF(TOK_FASTCALL1, "fastcall") + DEF(TOK_FASTCALL2, "__fastcall") + DEF(TOK_FASTCALL3, "__fastcall__") + DEF(TOK_MODE, "__mode__") + DEF(TOK_MODE_DI, "__DI__") + DEF(TOK_MODE_HI, "__HI__") + DEF(TOK_MODE_SI, "__SI__") + DEF(TOK_DLLEXPORT, "dllexport") + DEF(TOK_DLLIMPORT, "dllimport") + DEF(TOK_NORETURN1, "noreturn") + DEF(TOK_NORETURN2, "__noreturn__") + DEF(TOK_VISIBILITY1, "visibility") + DEF(TOK_VISIBILITY2, "__visibility__") + DEF(TOK_builtin_types_compatible_p, "__builtin_types_compatible_p") + DEF(TOK_builtin_constant_p, "__builtin_constant_p") + DEF(TOK_builtin_frame_address, "__builtin_frame_address") + DEF(TOK_builtin_return_address, "__builtin_return_address") +#ifdef TCC_TARGET_X86_64 +#ifdef TCC_TARGET_PE + DEF(TOK_builtin_va_start, "__builtin_va_start") +#else + DEF(TOK_builtin_va_arg_types, "__builtin_va_arg_types") +#endif +#endif + DEF(TOK_REGPARM1, "regparm") + DEF(TOK_REGPARM2, "__regparm__") + +#ifdef TCC_TARGET_ARM64 + DEF(TOK___va_start, "__va_start") + DEF(TOK___va_arg, "__va_arg") +#endif + +/* pragma */ + DEF(TOK_pack, "pack") +#if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_X86_64) + /* already defined for assembler */ + DEF(TOK_ASM_push, "push") + DEF(TOK_ASM_pop, "pop") +#endif + DEF(TOK_comment, "comment") + DEF(TOK_lib, "lib") + DEF(TOK_push_macro, "push_macro") + DEF(TOK_pop_macro, "pop_macro") + DEF(TOK_once, "once") + +/* builtin functions or variables */ +#ifndef TCC_ARM_EABI + DEF(TOK_memcpy, "memcpy") + DEF(TOK_memmove, "memmove") + DEF(TOK_memset, "memset") + DEF(TOK___divdi3, "__divdi3") + DEF(TOK___moddi3, "__moddi3") + DEF(TOK___udivdi3, "__udivdi3") + DEF(TOK___umoddi3, "__umoddi3") + DEF(TOK___ashrdi3, "__ashrdi3") + DEF(TOK___lshrdi3, "__lshrdi3") + DEF(TOK___ashldi3, "__ashldi3") + DEF(TOK___floatundisf, "__floatundisf") + DEF(TOK___floatundidf, "__floatundidf") +# ifndef TCC_ARM_VFP + DEF(TOK___floatundixf, "__floatundixf") + DEF(TOK___fixunsxfdi, "__fixunsxfdi") +# endif + DEF(TOK___fixunssfdi, "__fixunssfdi") + DEF(TOK___fixunsdfdi, "__fixunsdfdi") +#endif + +#if defined TCC_TARGET_ARM +# ifdef TCC_ARM_EABI + DEF(TOK_memcpy, "__aeabi_memcpy") + DEF(TOK_memcpy4, "__aeabi_memcpy4") + DEF(TOK_memcpy8, "__aeabi_memcpy8") + DEF(TOK_memmove, "__aeabi_memmove") + DEF(TOK_memset, "__aeabi_memset") + DEF(TOK___aeabi_ldivmod, "__aeabi_ldivmod") + DEF(TOK___aeabi_uldivmod, "__aeabi_uldivmod") + DEF(TOK___aeabi_idivmod, "__aeabi_idivmod") + DEF(TOK___aeabi_uidivmod, "__aeabi_uidivmod") + DEF(TOK___divsi3, "__aeabi_idiv") + DEF(TOK___udivsi3, "__aeabi_uidiv") + DEF(TOK___floatdisf, "__aeabi_l2f") + DEF(TOK___floatdidf, "__aeabi_l2d") + DEF(TOK___fixsfdi, "__aeabi_f2lz") + DEF(TOK___fixdfdi, "__aeabi_d2lz") + DEF(TOK___ashrdi3, "__aeabi_lasr") + DEF(TOK___lshrdi3, "__aeabi_llsr") + DEF(TOK___ashldi3, "__aeabi_llsl") + DEF(TOK___floatundisf, "__aeabi_ul2f") + DEF(TOK___floatundidf, "__aeabi_ul2d") + DEF(TOK___fixunssfdi, "__aeabi_f2ulz") + DEF(TOK___fixunsdfdi, "__aeabi_d2ulz") +# else + DEF(TOK___modsi3, "__modsi3") + DEF(TOK___umodsi3, "__umodsi3") + DEF(TOK___divsi3, "__divsi3") + DEF(TOK___udivsi3, "__udivsi3") + DEF(TOK___floatdisf, "__floatdisf") + DEF(TOK___floatdidf, "__floatdidf") +# ifndef TCC_ARM_VFP + DEF(TOK___floatdixf, "__floatdixf") + DEF(TOK___fixunssfsi, "__fixunssfsi") + DEF(TOK___fixunsdfsi, "__fixunsdfsi") + DEF(TOK___fixunsxfsi, "__fixunsxfsi") + DEF(TOK___fixxfdi, "__fixxfdi") +# endif + DEF(TOK___fixsfdi, "__fixsfdi") + DEF(TOK___fixdfdi, "__fixdfdi") +# endif +#endif + +#if defined TCC_TARGET_C67 + DEF(TOK__divi, "_divi") + DEF(TOK__divu, "_divu") + DEF(TOK__divf, "_divf") + DEF(TOK__divd, "_divd") + DEF(TOK__remi, "_remi") + DEF(TOK__remu, "_remu") +#endif + +#if defined TCC_TARGET_I386 + DEF(TOK___fixsfdi, "__fixsfdi") + DEF(TOK___fixdfdi, "__fixdfdi") + DEF(TOK___fixxfdi, "__fixxfdi") + + #ifndef COMMIT_4ad186c5ef61_IS_FIXED + DEF(TOK___tcc_cvt_ftol, "__tcc_cvt_ftol") + #endif +#endif + +#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 + DEF(TOK_alloca, "alloca") +#endif + +#if defined TCC_TARGET_PE + DEF(TOK___chkstk, "__chkstk") +#endif +#ifdef TCC_TARGET_ARM64 + DEF(TOK___arm64_clear_cache, "__arm64_clear_cache") + DEF(TOK___addtf3, "__addtf3") + DEF(TOK___subtf3, "__subtf3") + DEF(TOK___multf3, "__multf3") + DEF(TOK___divtf3, "__divtf3") + DEF(TOK___extendsftf2, "__extendsftf2") + DEF(TOK___extenddftf2, "__extenddftf2") + DEF(TOK___trunctfsf2, "__trunctfsf2") + DEF(TOK___trunctfdf2, "__trunctfdf2") + DEF(TOK___fixtfsi, "__fixtfsi") + DEF(TOK___fixtfdi, "__fixtfdi") + DEF(TOK___fixunstfsi, "__fixunstfsi") + DEF(TOK___fixunstfdi, "__fixunstfdi") + DEF(TOK___floatsitf, "__floatsitf") + DEF(TOK___floatditf, "__floatditf") + DEF(TOK___floatunsitf, "__floatunsitf") + DEF(TOK___floatunditf, "__floatunditf") + DEF(TOK___eqtf2, "__eqtf2") + DEF(TOK___netf2, "__netf2") + DEF(TOK___lttf2, "__lttf2") + DEF(TOK___letf2, "__letf2") + DEF(TOK___gttf2, "__gttf2") + DEF(TOK___getf2, "__getf2") +#endif + +/* bound checking symbols */ +#ifdef CONFIG_TCC_BCHECK + DEF(TOK___bound_ptr_add, "__bound_ptr_add") + DEF(TOK___bound_ptr_indir1, "__bound_ptr_indir1") + DEF(TOK___bound_ptr_indir2, "__bound_ptr_indir2") + DEF(TOK___bound_ptr_indir4, "__bound_ptr_indir4") + DEF(TOK___bound_ptr_indir8, "__bound_ptr_indir8") + DEF(TOK___bound_ptr_indir12, "__bound_ptr_indir12") + DEF(TOK___bound_ptr_indir16, "__bound_ptr_indir16") + DEF(TOK___bound_main_arg, "__bound_main_arg") + DEF(TOK___bound_local_new, "__bound_local_new") + DEF(TOK___bound_local_delete, "__bound_local_delete") + DEF(TOK___bound_init, "__bound_init") +# ifdef TCC_TARGET_PE + DEF(TOK_malloc, "malloc") + DEF(TOK_free, "free") + DEF(TOK_realloc, "realloc") + DEF(TOK_memalign, "memalign") + DEF(TOK_calloc, "calloc") +# endif + DEF(TOK_strlen, "strlen") + DEF(TOK_strcpy, "strcpy") +#endif + +/* Tiny Assembler */ + DEF_ASMDIR(byte) /* must be first directive */ + DEF_ASMDIR(word) + DEF_ASMDIR(align) + DEF_ASMDIR(p2align) + DEF_ASMDIR(skip) + DEF_ASMDIR(space) + DEF_ASMDIR(string) + DEF_ASMDIR(asciz) + DEF_ASMDIR(ascii) + DEF_ASMDIR(file) + DEF_ASMDIR(globl) + DEF_ASMDIR(global) + DEF_ASMDIR(weak) + DEF_ASMDIR(hidden) + DEF_ASMDIR(ident) + DEF_ASMDIR(size) + DEF_ASMDIR(type) + DEF_ASMDIR(text) + DEF_ASMDIR(data) + DEF_ASMDIR(bss) + DEF_ASMDIR(previous) + DEF_ASMDIR(fill) + DEF_ASMDIR(org) + DEF_ASMDIR(quad) +#if defined(TCC_TARGET_I386) + DEF_ASMDIR(code16) + DEF_ASMDIR(code32) +#elif defined(TCC_TARGET_X86_64) + DEF_ASMDIR(code64) +#endif + DEF_ASMDIR(short) + DEF_ASMDIR(long) + DEF_ASMDIR(int) + DEF_ASMDIR(section) /* must be last directive */ + +#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 +#include "i386-tok.h" +#endif diff --git a/external/TCC/win32/tools/tiny_impdef.c b/external/TCC/win32/tools/tiny_impdef.c new file mode 100644 index 00000000..48de44f3 --- /dev/null +++ b/external/TCC/win32/tools/tiny_impdef.c @@ -0,0 +1,249 @@ +/* -------------------------------------------------------------- */ +/* + * tiny_impdef creates an export definition file (.def) from a dll + * on MS-Windows. Usage: tiny_impdef library.dll [-o outputfile]" + * + * Copyright (c) 2005,2007 grischka + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef TINY_IMPDEF_GET_EXPORT_NAMES_ONLY + +#define WIN32_LEAN_AND_MEAN +#include +#include +#include +#include + +char *get_export_names(int fd); +#define tcc_free free +#define tcc_realloc realloc + +/* extract the basename of a file */ +static char *file_basename(const char *name) +{ + const char *p = strchr(name, 0); + while (p > name + && p[-1] != '/' + && p[-1] != '\\' + ) + --p; + return (char*)p; +} + +int main(int argc, char **argv) +{ + int ret, v, i; + char infile[MAX_PATH]; + char outfile[MAX_PATH]; + + static const char *ext[] = { ".dll", ".exe", NULL }; + const char *file, **pp; + char path[MAX_PATH], *p, *q; + FILE *fp, *op; + + infile[0] = 0; + outfile[0] = 0; + fp = op = NULL; + v = 0; + ret = 1; + p = NULL; + + for (i = 1; i < argc; ++i) { + const char *a = argv[i]; + if ('-' == a[0]) { + if (0 == strcmp(a, "-v")) { + v = 1; + } else if (0 == strcmp(a, "-o")) { + if (++i == argc) + goto usage; + strcpy(outfile, argv[i]); + } else + goto usage; + } else if (0 == infile[0]) + strcpy(infile, a); + else + goto usage; + } + + if (0 == infile[0]) { +usage: + fprintf(stderr, + "tiny_impdef: create export definition file (.def) from a dll\n" + "Usage: tiny_impdef library.dll [-o outputfile]\n" + ); + goto the_end; + } + + if (0 == outfile[0]) + { + strcpy(outfile, file_basename(infile)); + q = strrchr(outfile, '.'); + if (NULL == q) + q = strchr(outfile, 0); + strcpy(q, ".def"); + } + + file = infile; + +#ifdef _WIN32 + pp = ext; + do if (SearchPath(NULL, file, *pp, sizeof path, path, NULL)) { + file = path; + break; + } while (*pp++); +#endif + + fp = fopen(file, "rb"); + if (NULL == fp) { + fprintf(stderr, "tiny_impdef: no such file: %s\n", infile); + goto the_end; + } + if (v) + printf("--> %s\n", file); + + p = get_export_names(fileno(fp)); + if (NULL == p) { + fprintf(stderr, "tiny_impdef: could not get exported function names.\n"); + goto the_end; + } + + op = fopen(outfile, "w"); + if (NULL == op) { + fprintf(stderr, "tiny_impdef: could not create output file: %s\n", outfile); + goto the_end; + } + + fprintf(op, "LIBRARY %s\n\nEXPORTS\n", file_basename(file)); + for (q = p, i = 0; *q; ++i) { + fprintf(op, "%s\n", q); + q += strlen(q) + 1; + } + + if (v) { + printf("<-- %s\n", outfile); + printf("%d symbol(s) found\n", i); + } + + ret = 0; + +the_end: + if (p) + free(p); + if (fp) + fclose(fp); + if (op) + fclose(op); + return ret; +} + +int read_mem(int fd, unsigned offset, void *buffer, unsigned len) +{ + lseek(fd, offset, SEEK_SET); + return len == read(fd, buffer, len); +} + +/* -------------------------------------------------------------- */ + +#if defined TCC_TARGET_X86_64 +# define IMAGE_FILE_MACHINE 0x8664 +#elif defined TCC_TARGET_ARM +# define IMAGE_FILE_MACHINE 0x01C0 +#elif 1 /* defined TCC_TARGET_I386 */ +# define IMAGE_FILE_MACHINE 0x014C +#endif + +/* -------------------------------------------------------------- */ +#endif + +char *get_export_names(int fd) +{ + int l, i, n, n0; + char *p; + + IMAGE_SECTION_HEADER ish; + IMAGE_EXPORT_DIRECTORY ied; + IMAGE_DOS_HEADER dh; + IMAGE_FILE_HEADER ih; + DWORD sig, ref, addr, ptr, namep; +#ifdef TCC_TARGET_X86_64 + IMAGE_OPTIONAL_HEADER64 oh; +#else + IMAGE_OPTIONAL_HEADER32 oh; +#endif + int pef_hdroffset, opt_hdroffset, sec_hdroffset; + + n = n0 = 0; + p = NULL; + + if (!read_mem(fd, 0, &dh, sizeof dh)) + goto the_end; + if (!read_mem(fd, dh.e_lfanew, &sig, sizeof sig)) + goto the_end; + if (sig != 0x00004550) + goto the_end; + pef_hdroffset = dh.e_lfanew + sizeof sig; + if (!read_mem(fd, pef_hdroffset, &ih, sizeof ih)) + goto the_end; + if (IMAGE_FILE_MACHINE != ih.Machine) + goto the_end; + opt_hdroffset = pef_hdroffset + sizeof ih; + sec_hdroffset = opt_hdroffset + sizeof oh; + if (!read_mem(fd, opt_hdroffset, &oh, sizeof oh)) + goto the_end; + + if (IMAGE_DIRECTORY_ENTRY_EXPORT >= oh.NumberOfRvaAndSizes) + goto the_end; + + addr = oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress; + //printf("addr: %08x\n", addr); + for (i = 0; i < ih.NumberOfSections; ++i) { + if (!read_mem(fd, sec_hdroffset + i * sizeof ish, &ish, sizeof ish)) + goto the_end; + //printf("vaddr: %08x\n", ish.VirtualAddress); + if (addr >= ish.VirtualAddress && addr < ish.VirtualAddress + ish.SizeOfRawData) + goto found; + } + goto the_end; + +found: + ref = ish.VirtualAddress - ish.PointerToRawData; + if (!read_mem(fd, addr - ref, &ied, sizeof ied)) + goto the_end; + + namep = ied.AddressOfNames - ref; + for (i = 0; i < ied.NumberOfNames; ++i) { + if (!read_mem(fd, namep, &ptr, sizeof ptr)) + goto the_end; + namep += sizeof ptr; + for (l = 0;;) { + if (n+1 >= n0) + p = tcc_realloc(p, n0 = n0 ? n0 * 2 : 256); + if (!read_mem(fd, ptr - ref + l++, p + n, 1)) { + tcc_free(p), p = NULL; + goto the_end; + } + if (p[n++] == 0) + break; + } + } + if (p) + p[n] = 0; +the_end: + return p; +} + +/* -------------------------------------------------------------- */ diff --git a/external/TCC/win32/tools/tiny_libmaker.c b/external/TCC/win32/tools/tiny_libmaker.c new file mode 100644 index 00000000..62d2a2e0 --- /dev/null +++ b/external/TCC/win32/tools/tiny_libmaker.c @@ -0,0 +1,258 @@ +/* + * This program is for making libtcc1.a without ar + * tiny_libmaker - tiny elf lib maker + * usage: tiny_libmaker [lib] files... + * Copyright (c) 2007 Timppa + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include +#include +#include +#include "../../elf.h" + +#ifdef TCC_TARGET_X86_64 +# define ELFCLASSW ELFCLASS64 +# define ElfW(type) Elf##64##_##type +# define ELFW(type) ELF##64##_##type +#else +# define ELFCLASSW ELFCLASS32 +# define ElfW(type) Elf##32##_##type +# define ELFW(type) ELF##32##_##type +#endif + +#define ARMAG "!\n" +#define ARFMAG "`\n" + +typedef struct ArHdr { + char ar_name[16]; + char ar_date[12]; + char ar_uid[6]; + char ar_gid[6]; + char ar_mode[8]; + char ar_size[10]; + char ar_fmag[2]; +} ArHdr; + +unsigned long le2belong(unsigned long ul) { + return ((ul & 0xFF0000)>>8)+((ul & 0xFF000000)>>24) + + ((ul & 0xFF)<<24)+((ul & 0xFF00)<<8); +} + +ArHdr arhdr = { + "/ ", + " ", + "0 ", + "0 ", + "0 ", + " ", + ARFMAG + }; + +ArHdr arhdro = { + " ", + " ", + "0 ", + "0 ", + "0 ", + " ", + ARFMAG + }; + +int main(int argc, char **argv) +{ + FILE *fi, *fh = NULL, *fo = NULL; + ElfW(Ehdr) *ehdr; + ElfW(Shdr) *shdr; + ElfW(Sym) *sym; + int i, fsize, iarg; + char *buf, *shstr, *symtab = NULL, *strtab = NULL; + int symtabsize = 0;//, strtabsize = 0; + char *anames = NULL; + int *afpos = NULL; + int istrlen, strpos = 0, fpos = 0, funccnt = 0, funcmax, hofs; + char afile[260], tfile[260], stmp[20]; + char *file, *name; + int ret = 2; + + + strcpy(afile, "ar_test.a"); + iarg = 1; + + if (argc < 2) + { + printf("usage: tiny_libmaker [lib] file...\n"); + return 1; + } + for (i=1; ie_ident[4] != ELFCLASSW) + { + fprintf(stderr, "Unsupported Elf Class: %s\n", argv[iarg]); + goto the_end; + } + + shdr = (ElfW(Shdr) *) (buf + ehdr->e_shoff + ehdr->e_shstrndx * ehdr->e_shentsize); + shstr = (char *)(buf + shdr->sh_offset); + for (i = 0; i < ehdr->e_shnum; i++) + { + shdr = (ElfW(Shdr) *) (buf + ehdr->e_shoff + i * ehdr->e_shentsize); + if (!shdr->sh_offset) + continue; + if (shdr->sh_type == SHT_SYMTAB) + { + symtab = (char *)(buf + shdr->sh_offset); + symtabsize = shdr->sh_size; + } + if (shdr->sh_type == SHT_STRTAB) + { + if (!strcmp(shstr + shdr->sh_name, ".strtab")) + { + strtab = (char *)(buf + shdr->sh_offset); + //strtabsize = shdr->sh_size; + } + } + } + + if (symtab && symtabsize) + { + int nsym = symtabsize / sizeof(ElfW(Sym)); + //printf("symtab: info size shndx name\n"); + for (i = 1; i < nsym; i++) + { + sym = (ElfW(Sym) *) (symtab + i * sizeof(ElfW(Sym))); + if (sym->st_shndx && + (sym->st_info == 0x10 + || sym->st_info == 0x11 + || sym->st_info == 0x12 + )) { + //printf("symtab: %2Xh %4Xh %2Xh %s\n", sym->st_info, sym->st_size, sym->st_shndx, strtab + sym->st_name); + istrlen = strlen(strtab + sym->st_name)+1; + anames = realloc(anames, strpos+istrlen); + strcpy(anames + strpos, strtab + sym->st_name); + strpos += istrlen; + if (++funccnt >= funcmax) { + funcmax += 250; + afpos = realloc(afpos, funcmax * sizeof *afpos); // 250 func more + } + afpos[funccnt] = fpos; + } + } + } + + file = argv[iarg]; + for (name = strchr(file, 0); + name > file && name[-1] != '/' && name[-1] != '\\'; + --name); + istrlen = strlen(name); + if (istrlen >= sizeof(arhdro.ar_name)) + istrlen = sizeof(arhdro.ar_name) - 1; + memset(arhdro.ar_name, ' ', sizeof(arhdro.ar_name)); + memcpy(arhdro.ar_name, name, istrlen); + arhdro.ar_name[istrlen] = '/'; + sprintf(stmp, "%-10d", fsize); + memcpy(&arhdro.ar_size, stmp, 10); + fwrite(&arhdro, sizeof(arhdro), 1, fo); + fwrite(buf, fsize, 1, fo); + free(buf); + iarg++; + fpos += (fsize + sizeof(arhdro)); + } + hofs = 8 + sizeof(arhdr) + strpos + (funccnt+1) * sizeof(int); + fpos = 0; + if ((hofs & 1)) // align + hofs++, fpos = 1; + // write header + fwrite("!\n", 8, 1, fh); + sprintf(stmp, "%-10d", (int)(strpos + (funccnt+1) * sizeof(int))); + memcpy(&arhdr.ar_size, stmp, 10); + fwrite(&arhdr, sizeof(arhdr), 1, fh); + afpos[0] = le2belong(funccnt); + for (i=1; i<=funccnt; i++) + afpos[i] = le2belong(afpos[i] + hofs); + fwrite(afpos, (funccnt+1) * sizeof(int), 1, fh); + fwrite(anames, strpos, 1, fh); + if (fpos) + fwrite("", 1, 1, fh); + // write objects + fseek(fo, 0, SEEK_END); + fsize = ftell(fo); + fseek(fo, 0, SEEK_SET); + buf = malloc(fsize + 1); + fread(buf, fsize, 1, fo); + fwrite(buf, fsize, 1, fh); + free(buf); + ret = 0; +the_end: + if (anames) + free(anames); + if (afpos) + free(afpos); + if (fh) + fclose(fh); + if (fo) + fclose(fo), remove(tfile); + return ret; +} diff --git a/external/TCC/x86_64-asm.h b/external/TCC/x86_64-asm.h new file mode 100644 index 00000000..df76bf0f --- /dev/null +++ b/external/TCC/x86_64-asm.h @@ -0,0 +1,475 @@ + DEF_ASM_OP0(clc, 0xf8) /* must be first OP0 */ + DEF_ASM_OP0(cld, 0xfc) + DEF_ASM_OP0(cli, 0xfa) + DEF_ASM_OP0(clts, 0x0f06) + DEF_ASM_OP0(cmc, 0xf5) + DEF_ASM_OP0(lahf, 0x9f) + DEF_ASM_OP0(sahf, 0x9e) + DEF_ASM_OP0(pushfl, 0x9c) + DEF_ASM_OP0(popfl, 0x9d) + DEF_ASM_OP0(pushf, 0x9c) + DEF_ASM_OP0(popf, 0x9d) + DEF_ASM_OP0(stc, 0xf9) + DEF_ASM_OP0(std, 0xfd) + DEF_ASM_OP0(sti, 0xfb) + DEF_ASM_OP0(aaa, 0x37) + DEF_ASM_OP0(aas, 0x3f) + DEF_ASM_OP0(daa, 0x27) + DEF_ASM_OP0(das, 0x2f) + DEF_ASM_OP0(aad, 0xd50a) + DEF_ASM_OP0(aam, 0xd40a) + DEF_ASM_OP0(cbw, 0x6698) + DEF_ASM_OP0(cwd, 0x6699) + DEF_ASM_OP0(cwde, 0x98) + DEF_ASM_OP0(cdq, 0x99) + DEF_ASM_OP0(cbtw, 0x6698) + DEF_ASM_OP0(cwtl, 0x98) + DEF_ASM_OP0(cwtd, 0x6699) + DEF_ASM_OP0(cltd, 0x99) + DEF_ASM_OP0(cqto, 0x4899) + DEF_ASM_OP0(int3, 0xcc) + DEF_ASM_OP0(into, 0xce) + DEF_ASM_OP0(iret, 0xcf) + DEF_ASM_OP0(rsm, 0x0faa) + DEF_ASM_OP0(hlt, 0xf4) + DEF_ASM_OP0(wait, 0x9b) + DEF_ASM_OP0(nop, 0x90) + DEF_ASM_OP0(xlat, 0xd7) + + /* strings */ +ALT(DEF_ASM_OP0L(cmpsb, 0xa6, 0, OPC_BWLQ)) +ALT(DEF_ASM_OP0L(scmpb, 0xa6, 0, OPC_BWLQ)) + +ALT(DEF_ASM_OP0L(insb, 0x6c, 0, OPC_BWLQ)) +ALT(DEF_ASM_OP0L(outsb, 0x6e, 0, OPC_BWLQ)) + +ALT(DEF_ASM_OP0L(lodsb, 0xac, 0, OPC_BWLQ)) +ALT(DEF_ASM_OP0L(slodb, 0xac, 0, OPC_BWLQ)) + +ALT(DEF_ASM_OP0L(movsb, 0xa4, 0, OPC_BWLQ)) +ALT(DEF_ASM_OP0L(smovb, 0xa4, 0, OPC_BWLQ)) + +ALT(DEF_ASM_OP0L(scasb, 0xae, 0, OPC_BWLQ)) +ALT(DEF_ASM_OP0L(sscab, 0xae, 0, OPC_BWLQ)) + +ALT(DEF_ASM_OP0L(stosb, 0xaa, 0, OPC_BWLQ)) +ALT(DEF_ASM_OP0L(sstob, 0xaa, 0, OPC_BWLQ)) + + /* bits */ + +ALT(DEF_ASM_OP2(bsfw, 0x0fbc, 0, OPC_MODRM | OPC_WLQ, OPT_REGW | OPT_EA, OPT_REGW)) +ALT(DEF_ASM_OP2(bsrw, 0x0fbd, 0, OPC_MODRM | OPC_WLQ, OPT_REGW | OPT_EA, OPT_REGW)) + +ALT(DEF_ASM_OP2(btw, 0x0fa3, 0, OPC_MODRM | OPC_WLQ, OPT_REGW, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP2(btw, 0x0fba, 4, OPC_MODRM | OPC_WLQ, OPT_IM8, OPT_REGW | OPT_EA)) + +ALT(DEF_ASM_OP2(btsw, 0x0fab, 0, OPC_MODRM | OPC_WLQ, OPT_REGW, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP2(btsw, 0x0fba, 5, OPC_MODRM | OPC_WLQ, OPT_IM8, OPT_REGW | OPT_EA)) + +ALT(DEF_ASM_OP2(btrw, 0x0fb3, 0, OPC_MODRM | OPC_WLQ, OPT_REGW, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP2(btrw, 0x0fba, 6, OPC_MODRM | OPC_WLQ, OPT_IM8, OPT_REGW | OPT_EA)) + +ALT(DEF_ASM_OP2(btcw, 0x0fbb, 0, OPC_MODRM | OPC_WLQ, OPT_REGW, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP2(btcw, 0x0fba, 7, OPC_MODRM | OPC_WLQ, OPT_IM8, OPT_REGW | OPT_EA)) + + /* prefixes */ + DEF_ASM_OP0(lock, 0xf0) + DEF_ASM_OP0(rep, 0xf3) + DEF_ASM_OP0(repe, 0xf3) + DEF_ASM_OP0(repz, 0xf3) + DEF_ASM_OP0(repne, 0xf2) + DEF_ASM_OP0(repnz, 0xf2) + + DEF_ASM_OP0(invd, 0x0f08) + DEF_ASM_OP0(wbinvd, 0x0f09) + DEF_ASM_OP0(cpuid, 0x0fa2) + DEF_ASM_OP0(wrmsr, 0x0f30) + DEF_ASM_OP0(rdtsc, 0x0f31) + DEF_ASM_OP0(rdmsr, 0x0f32) + DEF_ASM_OP0(rdpmc, 0x0f33) + DEF_ASM_OP0(ud2, 0x0f0b) + + /* NOTE: we took the same order as gas opcode definition order */ +ALT(DEF_ASM_OP2(movb, 0xa0, 0, OPC_BWLQ, OPT_ADDR, OPT_EAX)) +ALT(DEF_ASM_OP2(movb, 0xa2, 0, OPC_BWLQ, OPT_EAX, OPT_ADDR)) +ALT(DEF_ASM_OP2(movb, 0x88, 0, OPC_MODRM | OPC_BWLQ, OPT_REG, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(movb, 0x8a, 0, OPC_MODRM | OPC_BWLQ, OPT_EA | OPT_REG, OPT_REG)) +ALT(DEF_ASM_OP2(movb, 0xb0, 0, OPC_REG | OPC_BWLQ, OPT_IM, OPT_REG)) +ALT(DEF_ASM_OP2(movb, 0xc6, 0, OPC_MODRM | OPC_BWLQ, OPT_IM, OPT_REG | OPT_EA)) + +ALT(DEF_ASM_OP2(movw, 0x8c, 0, OPC_MODRM | OPC_WLQ, OPT_SEG, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(movw, 0x8e, 0, OPC_MODRM | OPC_WLQ, OPT_EA | OPT_REG, OPT_SEG)) + +ALT(DEF_ASM_OP2(movw, 0x0f20, 0, OPC_MODRM | OPC_WLQ, OPT_CR, OPT_REG64)) +ALT(DEF_ASM_OP2(movw, 0x0f21, 0, OPC_MODRM | OPC_WLQ, OPT_DB, OPT_REG64)) +ALT(DEF_ASM_OP2(movw, 0x0f24, 0, OPC_MODRM | OPC_WLQ, OPT_TR, OPT_REG64)) +ALT(DEF_ASM_OP2(movw, 0x0f22, 0, OPC_MODRM | OPC_WLQ, OPT_REG64, OPT_CR)) +ALT(DEF_ASM_OP2(movw, 0x0f23, 0, OPC_MODRM | OPC_WLQ, OPT_REG64, OPT_DB)) +ALT(DEF_ASM_OP2(movw, 0x0f26, 0, OPC_MODRM | OPC_WLQ, OPT_REG64, OPT_TR)) + +ALT(DEF_ASM_OP2(movsbl, 0x0fbe, 0, OPC_MODRM, OPT_REG8 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(movsbw, 0x0fbe, 0, OPC_MODRM | OPC_D16, OPT_REG8 | OPT_EA, OPT_REG16)) +ALT(DEF_ASM_OP2(movswl, 0x0fbf, 0, OPC_MODRM, OPT_REG16 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(movslq, 0x4863, 0, OPC_MODRM, OPT_REG32 | OPT_EA, OPT_REG)) +ALT(DEF_ASM_OP2(movzbw, 0x0fb6, 0, OPC_MODRM | OPC_WL, OPT_REG8 | OPT_EA, OPT_REGW)) +ALT(DEF_ASM_OP2(movzwl, 0x0fb7, 0, OPC_MODRM, OPT_REG16 | OPT_EA, OPT_REG32)) + +ALT(DEF_ASM_OP1(pushw, 0x50, 0, OPC_REG | OPC_WLQ, OPT_REG64)) +ALT(DEF_ASM_OP1(pushw, 0xff, 6, OPC_MODRM | OPC_WLQ, OPT_REG64 | OPT_EA)) +ALT(DEF_ASM_OP1(pushw, 0x68, 0, OPC_WLQ, OPT_IM32)) +ALT(DEF_ASM_OP1(pushw, 0x06, 0, OPC_WLQ, OPT_SEG)) + DEF_ASM_OP1(pushb, 0x6a, 0, OPC_B, OPT_IM8S) + +ALT(DEF_ASM_OP1(popw, 0x58, 0, OPC_REG | OPC_WLQ, OPT_REGW)) +ALT(DEF_ASM_OP1(popw, 0x8f, 0, OPC_MODRM | OPC_WLQ, OPT_REGW | OPT_EA)) +ALT(DEF_ASM_OP1(popw, 0x07, 0, OPC_WLQ, OPT_SEG)) + +ALT(DEF_ASM_OP2(xchgw, 0x90, 0, OPC_REG | OPC_WLQ, OPT_REG, OPT_EAX)) +ALT(DEF_ASM_OP2(xchgw, 0x90, 0, OPC_REG | OPC_WLQ, OPT_EAX, OPT_REG)) +ALT(DEF_ASM_OP2(xchgb, 0x86, 0, OPC_MODRM | OPC_BWLQ, OPT_REG, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(xchgb, 0x86, 0, OPC_MODRM | OPC_BWLQ, OPT_EA | OPT_REG, OPT_REG)) + +ALT(DEF_ASM_OP2(inb, 0xe4, 0, OPC_BWL, OPT_IM8, OPT_EAX)) +ALT(DEF_ASM_OP1(inb, 0xe4, 0, OPC_BWL, OPT_IM8)) +ALT(DEF_ASM_OP2(inb, 0xec, 0, OPC_BWL, OPT_DX, OPT_EAX)) +ALT(DEF_ASM_OP1(inb, 0xec, 0, OPC_BWL, OPT_DX)) + +ALT(DEF_ASM_OP2(outb, 0xe6, 0, OPC_BWL, OPT_EAX, OPT_IM8)) +ALT(DEF_ASM_OP1(outb, 0xe6, 0, OPC_BWL, OPT_IM8)) +ALT(DEF_ASM_OP2(outb, 0xee, 0, OPC_BWL, OPT_EAX, OPT_DX)) +ALT(DEF_ASM_OP1(outb, 0xee, 0, OPC_BWL, OPT_DX)) + +ALT(DEF_ASM_OP2(leaw, 0x8d, 0, OPC_MODRM | OPC_WLQ, OPT_EA, OPT_REG)) + +ALT(DEF_ASM_OP2(les, 0xc4, 0, OPC_MODRM, OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(lds, 0xc5, 0, OPC_MODRM, OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(lss, 0x0fb2, 0, OPC_MODRM, OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(lfs, 0x0fb4, 0, OPC_MODRM, OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(lgs, 0x0fb5, 0, OPC_MODRM, OPT_EA, OPT_REG32)) + + /* arith */ +ALT(DEF_ASM_OP2(addb, 0x00, 0, OPC_ARITH | OPC_MODRM | OPC_BWLQ, OPT_REG, OPT_EA | OPT_REG)) /* XXX: use D bit ? */ +ALT(DEF_ASM_OP2(addb, 0x02, 0, OPC_ARITH | OPC_MODRM | OPC_BWLQ, OPT_EA | OPT_REG, OPT_REG)) +ALT(DEF_ASM_OP2(addb, 0x04, 0, OPC_ARITH | OPC_BWLQ, OPT_IMNO64, OPT_EAX)) +ALT(DEF_ASM_OP2(addb, 0x80, 0, OPC_ARITH | OPC_MODRM | OPC_BWLQ, OPT_IMNO64, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(addw, 0x83, 0, OPC_ARITH | OPC_MODRM | OPC_WLQ, OPT_IM8S, OPT_EA | OPT_REG)) + +ALT(DEF_ASM_OP2(testb, 0x84, 0, OPC_MODRM | OPC_BWLQ, OPT_EA | OPT_REG, OPT_REG)) +ALT(DEF_ASM_OP2(testb, 0x84, 0, OPC_MODRM | OPC_BWLQ, OPT_REG, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(testb, 0xa8, 0, OPC_BWLQ, OPT_IMNO64, OPT_EAX)) +ALT(DEF_ASM_OP2(testb, 0xf6, 0, OPC_MODRM | OPC_BWLQ, OPT_IMNO64, OPT_EA | OPT_REG)) + +ALT(DEF_ASM_OP1(incw, 0x40, 0, OPC_REG | OPC_WLQ, OPT_REGW)) +ALT(DEF_ASM_OP1(incb, 0xfe, 0, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP1(decw, 0x48, 0, OPC_REG | OPC_WLQ, OPT_REGW)) +ALT(DEF_ASM_OP1(decb, 0xfe, 1, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA)) + +ALT(DEF_ASM_OP1(notb, 0xf6, 2, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP1(negb, 0xf6, 3, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA)) + +ALT(DEF_ASM_OP1(mulb, 0xf6, 4, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP1(imulb, 0xf6, 5, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA)) + +ALT(DEF_ASM_OP2(imulw, 0x0faf, 0, OPC_MODRM | OPC_WLQ, OPT_REG | OPT_EA, OPT_REG)) +ALT(DEF_ASM_OP3(imulw, 0x6b, 0, OPC_MODRM | OPC_WLQ, OPT_IM8S, OPT_REGW | OPT_EA, OPT_REGW)) +ALT(DEF_ASM_OP2(imulw, 0x6b, 0, OPC_MODRM | OPC_WLQ, OPT_IM8S, OPT_REGW)) +ALT(DEF_ASM_OP3(imulw, 0x69, 0, OPC_MODRM | OPC_WLQ, OPT_IMW, OPT_REGW | OPT_EA, OPT_REGW)) +ALT(DEF_ASM_OP2(imulw, 0x69, 0, OPC_MODRM | OPC_WLQ, OPT_IMW, OPT_REGW)) + +ALT(DEF_ASM_OP1(divb, 0xf6, 6, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP2(divb, 0xf6, 6, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA, OPT_EAX)) +ALT(DEF_ASM_OP1(idivb, 0xf6, 7, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA)) +ALT(DEF_ASM_OP2(idivb, 0xf6, 7, OPC_MODRM | OPC_BWLQ, OPT_REG | OPT_EA, OPT_EAX)) + + /* shifts */ +ALT(DEF_ASM_OP2(rolb, 0xc0, 0, OPC_MODRM | OPC_BWLQ | OPC_SHIFT, OPT_IM8, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP2(rolb, 0xd2, 0, OPC_MODRM | OPC_BWLQ | OPC_SHIFT, OPT_CL, OPT_EA | OPT_REG)) +ALT(DEF_ASM_OP1(rolb, 0xd0, 0, OPC_MODRM | OPC_BWLQ | OPC_SHIFT, OPT_EA | OPT_REG)) + +ALT(DEF_ASM_OP3(shldw, 0x0fa4, 0, OPC_MODRM | OPC_WLQ, OPT_IM8, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP3(shldw, 0x0fa5, 0, OPC_MODRM | OPC_WLQ, OPT_CL, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP2(shldw, 0x0fa5, 0, OPC_MODRM | OPC_WLQ, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP3(shrdw, 0x0fac, 0, OPC_MODRM | OPC_WLQ, OPT_IM8, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP3(shrdw, 0x0fad, 0, OPC_MODRM | OPC_WLQ, OPT_CL, OPT_REGW, OPT_EA | OPT_REGW)) +ALT(DEF_ASM_OP2(shrdw, 0x0fad, 0, OPC_MODRM | OPC_WLQ, OPT_REGW, OPT_EA | OPT_REGW)) + +ALT(DEF_ASM_OP1(call, 0xff, 2, OPC_MODRM, OPT_INDIR)) +ALT(DEF_ASM_OP1(call, 0xe8, 0, OPC_JMP, OPT_ADDR)) +ALT(DEF_ASM_OP1(jmp, 0xff, 4, OPC_MODRM, OPT_INDIR)) +ALT(DEF_ASM_OP1(jmp, 0xff, 0, OPC_JMP | OPC_WL, OPT_REGW)) +ALT(DEF_ASM_OP1(jmp, 0xeb, 0, OPC_SHORTJMP | OPC_JMP, OPT_ADDR)) + +ALT(DEF_ASM_OP1(lcall, 0xff, 3, 0, OPT_EA)) +ALT(DEF_ASM_OP1(ljmp, 0xff, 5, 0, OPT_EA)) + +ALT(DEF_ASM_OP1(int, 0xcd, 0, 0, OPT_IM8)) +ALT(DEF_ASM_OP1(seto, 0x0f90, 0, OPC_MODRM | OPC_TEST, OPT_REG8 | OPT_EA)) +ALT(DEF_ASM_OP1(setob, 0x0f90, 0, OPC_MODRM | OPC_TEST, OPT_REG8 | OPT_EA)) + DEF_ASM_OP2(enter, 0xc8, 0, 0, OPT_IM16, OPT_IM8) + DEF_ASM_OP0(leave, 0xc9) + DEF_ASM_OP0(ret, 0xc3) +ALT(DEF_ASM_OP1(ret, 0xc2, 0, 0, OPT_IM16)) + DEF_ASM_OP0(lret, 0xcb) +ALT(DEF_ASM_OP1(lret, 0xca, 0, 0, OPT_IM16)) + +ALT(DEF_ASM_OP1(jo, 0x70, 0, OPC_SHORTJMP | OPC_JMP | OPC_TEST, OPT_ADDR)) + DEF_ASM_OP1(loopne, 0xe0, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(loopnz, 0xe0, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(loope, 0xe1, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(loopz, 0xe1, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(loop, 0xe2, 0, OPC_SHORTJMP, OPT_ADDR) + DEF_ASM_OP1(jecxz, 0xe3, 0, OPC_SHORTJMP, OPT_ADDR) + + /* float */ + /* specific fcomp handling */ +ALT(DEF_ASM_OP0L(fcomp, 0xd8d9, 0, 0)) + +ALT(DEF_ASM_OP1(fadd, 0xd8c0, 0, OPC_FARITH | OPC_REG, OPT_ST)) +ALT(DEF_ASM_OP2(fadd, 0xd8c0, 0, OPC_FARITH | OPC_REG, OPT_ST, OPT_ST0)) +ALT(DEF_ASM_OP0L(fadd, 0xdec1, 0, OPC_FARITH)) +ALT(DEF_ASM_OP1(faddp, 0xdec0, 0, OPC_FARITH | OPC_REG, OPT_ST)) +ALT(DEF_ASM_OP2(faddp, 0xdec0, 0, OPC_FARITH | OPC_REG, OPT_ST, OPT_ST0)) +ALT(DEF_ASM_OP2(faddp, 0xdec0, 0, OPC_FARITH | OPC_REG, OPT_ST0, OPT_ST)) +ALT(DEF_ASM_OP0L(faddp, 0xdec1, 0, OPC_FARITH)) +ALT(DEF_ASM_OP1(fadds, 0xd8, 0, OPC_FARITH | OPC_MODRM, OPT_EA)) +ALT(DEF_ASM_OP1(fiaddl, 0xda, 0, OPC_FARITH | OPC_MODRM, OPT_EA)) +ALT(DEF_ASM_OP1(faddl, 0xdc, 0, OPC_FARITH | OPC_MODRM, OPT_EA)) +ALT(DEF_ASM_OP1(fiadds, 0xde, 0, OPC_FARITH | OPC_MODRM, OPT_EA)) + + DEF_ASM_OP0(fucompp, 0xdae9) + DEF_ASM_OP0(ftst, 0xd9e4) + DEF_ASM_OP0(fxam, 0xd9e5) + DEF_ASM_OP0(fld1, 0xd9e8) + DEF_ASM_OP0(fldl2t, 0xd9e9) + DEF_ASM_OP0(fldl2e, 0xd9ea) + DEF_ASM_OP0(fldpi, 0xd9eb) + DEF_ASM_OP0(fldlg2, 0xd9ec) + DEF_ASM_OP0(fldln2, 0xd9ed) + DEF_ASM_OP0(fldz, 0xd9ee) + + DEF_ASM_OP0(f2xm1, 0xd9f0) + DEF_ASM_OP0(fyl2x, 0xd9f1) + DEF_ASM_OP0(fptan, 0xd9f2) + DEF_ASM_OP0(fpatan, 0xd9f3) + DEF_ASM_OP0(fxtract, 0xd9f4) + DEF_ASM_OP0(fprem1, 0xd9f5) + DEF_ASM_OP0(fdecstp, 0xd9f6) + DEF_ASM_OP0(fincstp, 0xd9f7) + DEF_ASM_OP0(fprem, 0xd9f8) + DEF_ASM_OP0(fyl2xp1, 0xd9f9) + DEF_ASM_OP0(fsqrt, 0xd9fa) + DEF_ASM_OP0(fsincos, 0xd9fb) + DEF_ASM_OP0(frndint, 0xd9fc) + DEF_ASM_OP0(fscale, 0xd9fd) + DEF_ASM_OP0(fsin, 0xd9fe) + DEF_ASM_OP0(fcos, 0xd9ff) + DEF_ASM_OP0(fchs, 0xd9e0) + DEF_ASM_OP0(fabs, 0xd9e1) + DEF_ASM_OP0(fninit, 0xdbe3) + DEF_ASM_OP0(fnclex, 0xdbe2) + DEF_ASM_OP0(fnop, 0xd9d0) + DEF_ASM_OP0(fwait, 0x9b) + + /* fp load */ + DEF_ASM_OP1(fld, 0xd9c0, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(fldl, 0xd9c0, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(flds, 0xd9, 0, OPC_MODRM, OPT_EA) +ALT(DEF_ASM_OP1(fldl, 0xdd, 0, OPC_MODRM, OPT_EA)) + DEF_ASM_OP1(fildl, 0xdb, 0, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fildq, 0xdf, 5, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fildll, 0xdf, 5, OPC_MODRM,OPT_EA) + DEF_ASM_OP1(fldt, 0xdb, 5, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fbld, 0xdf, 4, OPC_MODRM, OPT_EA) + + /* fp store */ + DEF_ASM_OP1(fst, 0xddd0, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(fstl, 0xddd0, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(fsts, 0xd9, 2, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fstps, 0xd9, 3, OPC_MODRM, OPT_EA) +ALT(DEF_ASM_OP1(fstl, 0xdd, 2, OPC_MODRM, OPT_EA)) + DEF_ASM_OP1(fstpl, 0xdd, 3, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fist, 0xdf, 2, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fistp, 0xdf, 3, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fistl, 0xdb, 2, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fistpl, 0xdb, 3, OPC_MODRM, OPT_EA) + + DEF_ASM_OP1(fstp, 0xddd8, 0, OPC_REG, OPT_ST) + DEF_ASM_OP1(fistpq, 0xdf, 7, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fistpll, 0xdf, 7, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fstpt, 0xdb, 7, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(fbstp, 0xdf, 6, OPC_MODRM, OPT_EA) + + /* exchange */ + DEF_ASM_OP0(fxch, 0xd9c9) +ALT(DEF_ASM_OP1(fxch, 0xd9c8, 0, OPC_REG, OPT_ST)) + + /* misc FPU */ + DEF_ASM_OP1(fucom, 0xdde0, 0, OPC_REG, OPT_ST ) + DEF_ASM_OP1(fucomp, 0xdde8, 0, OPC_REG, OPT_ST ) + + DEF_ASM_OP0L(finit, 0xdbe3, 0, OPC_FWAIT) + DEF_ASM_OP1(fldcw, 0xd9, 5, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fnstcw, 0xd9, 7, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fstcw, 0xd9, 7, OPC_MODRM | OPC_FWAIT, OPT_EA ) + DEF_ASM_OP0(fnstsw, 0xdfe0) +ALT(DEF_ASM_OP1(fnstsw, 0xdfe0, 0, 0, OPT_EAX )) +ALT(DEF_ASM_OP1(fnstsw, 0xdd, 7, OPC_MODRM, OPT_EA )) + DEF_ASM_OP1(fstsw, 0xdfe0, 0, OPC_FWAIT, OPT_EAX ) +ALT(DEF_ASM_OP0L(fstsw, 0xdfe0, 0, OPC_FWAIT)) +ALT(DEF_ASM_OP1(fstsw, 0xdd, 7, OPC_MODRM | OPC_FWAIT, OPT_EA )) + DEF_ASM_OP0L(fclex, 0xdbe2, 0, OPC_FWAIT) + DEF_ASM_OP1(fnstenv, 0xd9, 6, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fstenv, 0xd9, 6, OPC_MODRM | OPC_FWAIT, OPT_EA ) + DEF_ASM_OP1(fldenv, 0xd9, 4, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fnsave, 0xdd, 6, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fsave, 0xdd, 6, OPC_MODRM | OPC_FWAIT, OPT_EA ) + DEF_ASM_OP1(frstor, 0xdd, 4, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(ffree, 0xddc0, 4, OPC_REG, OPT_ST ) + DEF_ASM_OP1(ffreep, 0xdfc0, 4, OPC_REG, OPT_ST ) + DEF_ASM_OP1(fxsave, 0x0fae, 0, OPC_MODRM, OPT_EA ) + DEF_ASM_OP1(fxrstor, 0x0fae, 1, OPC_MODRM, OPT_EA ) + + /* segments */ + DEF_ASM_OP2(arpl, 0x63, 0, OPC_MODRM, OPT_REG16, OPT_REG16 | OPT_EA) + DEF_ASM_OP2(lar, 0x0f02, 0, OPC_MODRM, OPT_REG32 | OPT_EA, OPT_REG32) + DEF_ASM_OP1(lgdt, 0x0f01, 2, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(lidt, 0x0f01, 3, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(lldt, 0x0f00, 2, OPC_MODRM, OPT_EA | OPT_REG) + DEF_ASM_OP1(lmsw, 0x0f01, 6, OPC_MODRM, OPT_EA | OPT_REG) +ALT(DEF_ASM_OP2(lslw, 0x0f03, 0, OPC_MODRM | OPC_WL, OPT_EA | OPT_REG, OPT_REG)) + DEF_ASM_OP1(ltr, 0x0f00, 3, OPC_MODRM, OPT_EA | OPT_REG) + DEF_ASM_OP1(sgdt, 0x0f01, 0, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(sidt, 0x0f01, 1, OPC_MODRM, OPT_EA) + DEF_ASM_OP1(sldt, 0x0f00, 0, OPC_MODRM, OPT_REG | OPT_EA) + DEF_ASM_OP1(smsw, 0x0f01, 4, OPC_MODRM, OPT_REG | OPT_EA) + DEF_ASM_OP1(str, 0x0f00, 1, OPC_MODRM, OPT_REG16| OPT_EA) + DEF_ASM_OP1(verr, 0x0f00, 4, OPC_MODRM, OPT_REG | OPT_EA) + DEF_ASM_OP1(verw, 0x0f00, 5, OPC_MODRM, OPT_REG | OPT_EA) + + /* 486 */ + DEF_ASM_OP1(bswap, 0x0fc8, 0, OPC_REG, OPT_REG32 ) +ALT(DEF_ASM_OP2(xaddb, 0x0fc0, 0, OPC_MODRM | OPC_BWL, OPT_REG, OPT_REG | OPT_EA )) +ALT(DEF_ASM_OP2(cmpxchgb, 0x0fb0, 0, OPC_MODRM | OPC_BWL, OPT_REG, OPT_REG | OPT_EA )) + DEF_ASM_OP1(invlpg, 0x0f01, 7, OPC_MODRM, OPT_EA ) + + DEF_ASM_OP2(boundl, 0x62, 0, OPC_MODRM, OPT_REG32, OPT_EA) + DEF_ASM_OP2(boundw, 0x62, 0, OPC_MODRM | OPC_D16, OPT_REG16, OPT_EA) + + /* pentium */ + DEF_ASM_OP1(cmpxchg8b, 0x0fc7, 1, OPC_MODRM, OPT_EA ) + + /* pentium pro */ +ALT(DEF_ASM_OP2(cmovo, 0x0f40, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovno, 0x0f41, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovc, 0x0f42, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovnc, 0x0f43, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovz, 0x0f44, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovnz, 0x0f45, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmovna, 0x0f46, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) +ALT(DEF_ASM_OP2(cmova, 0x0f47, 0, OPC_MODRM | OPC_TEST, OPT_REG32 | OPT_EA, OPT_REG32)) + + DEF_ASM_OP2(fcmovb, 0xdac0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmove, 0xdac8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovbe, 0xdad0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovu, 0xdad8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovnb, 0xdbc0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovne, 0xdbc8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovnbe, 0xdbd0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcmovnu, 0xdbd8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + + DEF_ASM_OP2(fucomi, 0xdbe8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcomi, 0xdbf0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fucomip, 0xdfe8, 0, OPC_REG, OPT_ST, OPT_ST0 ) + DEF_ASM_OP2(fcomip, 0xdff0, 0, OPC_REG, OPT_ST, OPT_ST0 ) + + /* mmx */ + DEF_ASM_OP0(emms, 0x0f77) /* must be last OP0 */ + DEF_ASM_OP2(movd, 0x0f6e, 0, OPC_MODRM, OPT_EA | OPT_REG32, OPT_MMX ) +ALT(DEF_ASM_OP2(movd, 0x0f7e, 0, OPC_MODRM, OPT_MMX, OPT_EA | OPT_REG32 )) +ALT(DEF_ASM_OP2(movq, 0x0f6f, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX )) +ALT(DEF_ASM_OP2(movq, 0x0f7f, 0, OPC_MODRM, OPT_MMX, OPT_EA | OPT_MMX )) + DEF_ASM_OP2(packssdw, 0x0f6b, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(packsswb, 0x0f63, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(packuswb, 0x0f67, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddb, 0x0ffc, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddw, 0x0ffd, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddd, 0x0ffe, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddsb, 0x0fec, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddsw, 0x0fed, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddusb, 0x0fdc, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(paddusw, 0x0fdd, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pand, 0x0fdb, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pandn, 0x0fdf, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpeqb, 0x0f74, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpeqw, 0x0f75, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpeqd, 0x0f76, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpgtb, 0x0f64, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpgtw, 0x0f65, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pcmpgtd, 0x0f66, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pmaddwd, 0x0ff5, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pmulhw, 0x0fe5, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pmullw, 0x0fd5, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(por, 0x0feb, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psllw, 0x0ff1, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psllw, 0x0f71, 6, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(pslld, 0x0ff2, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(pslld, 0x0f72, 6, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psllq, 0x0ff3, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psllq, 0x0f73, 6, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psraw, 0x0fe1, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psraw, 0x0f71, 4, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psrad, 0x0fe2, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psrad, 0x0f72, 4, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psrlw, 0x0fd1, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psrlw, 0x0f71, 2, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psrld, 0x0fd2, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psrld, 0x0f72, 2, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psrlq, 0x0fd3, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) +ALT(DEF_ASM_OP2(psrlq, 0x0f73, 2, OPC_MODRM, OPT_IM8, OPT_MMX )) + DEF_ASM_OP2(psubb, 0x0ff8, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubw, 0x0ff9, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubd, 0x0ffa, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubsb, 0x0fe8, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubsw, 0x0fe9, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubusb, 0x0fd8, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(psubusw, 0x0fd9, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpckhbw, 0x0f68, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpckhwd, 0x0f69, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpckhdq, 0x0f6a, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpcklbw, 0x0f60, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpcklwd, 0x0f61, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(punpckldq, 0x0f62, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pxor, 0x0fef, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + + /* sse */ + DEF_ASM_OP2(movups, 0x0f10, 0, OPC_MODRM, OPT_EA | OPT_REG32, OPT_SSE ) +ALT(DEF_ASM_OP2(movups, 0x0f11, 0, OPC_MODRM, OPT_SSE, OPT_EA | OPT_REG32 )) + DEF_ASM_OP2(movaps, 0x0f28, 0, OPC_MODRM, OPT_EA | OPT_REG32, OPT_SSE ) +ALT(DEF_ASM_OP2(movaps, 0x0f29, 0, OPC_MODRM, OPT_SSE, OPT_EA | OPT_REG32 )) + DEF_ASM_OP2(movhps, 0x0f16, 0, OPC_MODRM, OPT_EA | OPT_REG32, OPT_SSE ) +ALT(DEF_ASM_OP2(movhps, 0x0f17, 0, OPC_MODRM, OPT_SSE, OPT_EA | OPT_REG32 )) + DEF_ASM_OP2(addps, 0x0f58, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(cvtpi2ps, 0x0f2a, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_SSE ) + DEF_ASM_OP2(cvtps2pi, 0x0f2d, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_MMX ) + DEF_ASM_OP2(cvttps2pi, 0x0f2c, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_MMX ) + DEF_ASM_OP2(divps, 0x0f5e, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(maxps, 0x0f5f, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(minps, 0x0f5d, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(mulps, 0x0f59, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(pavgb, 0x0fe0, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(pavgw, 0x0fe3, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(pmaxsw, 0x0fee, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pmaxub, 0x0fde, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pminsw, 0x0fea, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(pminub, 0x0fda, 0, OPC_MODRM, OPT_EA | OPT_MMX, OPT_MMX ) + DEF_ASM_OP2(rcpss, 0x0f53, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(rsqrtps, 0x0f52, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(sqrtps, 0x0f51, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + DEF_ASM_OP2(subps, 0x0f5c, 0, OPC_MODRM, OPT_EA | OPT_SSE, OPT_SSE ) + +#undef ALT +#undef DEF_ASM_OP0 +#undef DEF_ASM_OP0L +#undef DEF_ASM_OP1 +#undef DEF_ASM_OP2 +#undef DEF_ASM_OP3 diff --git a/external/TCC/x86_64-gen.c b/external/TCC/x86_64-gen.c new file mode 100644 index 00000000..692b420f --- /dev/null +++ b/external/TCC/x86_64-gen.c @@ -0,0 +1,2251 @@ +/* + * x86-64 code generator for TCC + * + * Copyright (c) 2008 Shinichiro Hamaji + * + * Based on i386-gen.c by Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifdef TARGET_DEFS_ONLY + +/* number of available registers */ +#define NB_REGS 25 +#define NB_ASM_REGS 8 + +/* a register can belong to several classes. The classes must be + sorted from more general to more precise (see gv2() code which does + assumptions on it). */ +#define RC_INT 0x0001 /* generic integer register */ +#define RC_FLOAT 0x0002 /* generic float register */ +#define RC_RAX 0x0004 +#define RC_RCX 0x0008 +#define RC_RDX 0x0010 +#define RC_ST0 0x0080 /* only for long double */ +#define RC_R8 0x0100 +#define RC_R9 0x0200 +#define RC_R10 0x0400 +#define RC_R11 0x0800 +#define RC_XMM0 0x1000 +#define RC_XMM1 0x2000 +#define RC_XMM2 0x4000 +#define RC_XMM3 0x8000 +#define RC_XMM4 0x10000 +#define RC_XMM5 0x20000 +#define RC_XMM6 0x40000 +#define RC_XMM7 0x80000 +#define RC_IRET RC_RAX /* function return: integer register */ +#define RC_LRET RC_RDX /* function return: second integer register */ +#define RC_FRET RC_XMM0 /* function return: float register */ +#define RC_QRET RC_XMM1 /* function return: second float register */ + +/* pretty names for the registers */ +enum { + TREG_RAX = 0, + TREG_RCX = 1, + TREG_RDX = 2, + TREG_RSP = 4, + TREG_RSI = 6, + TREG_RDI = 7, + + TREG_R8 = 8, + TREG_R9 = 9, + TREG_R10 = 10, + TREG_R11 = 11, + + TREG_XMM0 = 16, + TREG_XMM1 = 17, + TREG_XMM2 = 18, + TREG_XMM3 = 19, + TREG_XMM4 = 20, + TREG_XMM5 = 21, + TREG_XMM6 = 22, + TREG_XMM7 = 23, + + TREG_ST0 = 24, + + TREG_MEM = 0x20 +}; + +#define REX_BASE(reg) (((reg) >> 3) & 1) +#define REG_VALUE(reg) ((reg) & 7) + +/* return registers for function */ +#define REG_IRET TREG_RAX /* single word int return register */ +#define REG_LRET TREG_RDX /* second word return register (for long long) */ +#define REG_FRET TREG_XMM0 /* float return register */ +#define REG_QRET TREG_XMM1 /* second float return register */ + +/* defined if function parameters must be evaluated in reverse order */ +#define INVERT_FUNC_PARAMS + +/* pointer size, in bytes */ +#define PTR_SIZE 8 + +/* long double size and alignment, in bytes */ +#define LDOUBLE_SIZE 16 +#define LDOUBLE_ALIGN 16 +/* maximum alignment (for aligned attribute support) */ +#define MAX_ALIGN 16 + +/******************************************************/ +/* ELF defines */ + +#define EM_TCC_TARGET EM_X86_64 + +/* relocation type for 32 bit data relocation */ +#define R_DATA_32 R_X86_64_32 +#define R_DATA_PTR R_X86_64_64 +#define R_JMP_SLOT R_X86_64_JUMP_SLOT +#define R_COPY R_X86_64_COPY + +#define ELF_START_ADDR 0x400000 +#define ELF_PAGE_SIZE 0x200000 + +/******************************************************/ +#else /* ! TARGET_DEFS_ONLY */ +/******************************************************/ +#include "tcc.h" +#include + +ST_DATA const int reg_classes[NB_REGS] = { + /* eax */ RC_INT | RC_RAX, + /* ecx */ RC_INT | RC_RCX, + /* edx */ RC_INT | RC_RDX, + 0, + 0, + 0, + 0, + 0, + RC_R8, + RC_R9, + RC_R10, + RC_R11, + 0, + 0, + 0, + 0, + /* xmm0 */ RC_FLOAT | RC_XMM0, + /* xmm1 */ RC_FLOAT | RC_XMM1, + /* xmm2 */ RC_FLOAT | RC_XMM2, + /* xmm3 */ RC_FLOAT | RC_XMM3, + /* xmm4 */ RC_FLOAT | RC_XMM4, + /* xmm5 */ RC_FLOAT | RC_XMM5, + /* xmm6 an xmm7 are included so gv() can be used on them, + but they are not tagged with RC_FLOAT because they are + callee saved on Windows */ + RC_XMM6, + RC_XMM7, + /* st0 */ RC_ST0 +}; + +static unsigned long func_sub_sp_offset; +static int func_ret_sub; + +/* XXX: make it faster ? */ +void g(int c) +{ + int ind1; + ind1 = ind + 1; + if (ind1 > cur_text_section->data_allocated) + section_realloc(cur_text_section, ind1); + cur_text_section->data[ind] = c; + ind = ind1; +} + +void o(unsigned int c) +{ + while (c) { + g(c); + c = c >> 8; + } +} + +void gen_le16(int v) +{ + g(v); + g(v >> 8); +} + +void gen_le32(int c) +{ + g(c); + g(c >> 8); + g(c >> 16); + g(c >> 24); +} + +void gen_le64(int64_t c) +{ + g(c); + g(c >> 8); + g(c >> 16); + g(c >> 24); + g(c >> 32); + g(c >> 40); + g(c >> 48); + g(c >> 56); +} + +void orex(int ll, int r, int r2, int b) +{ + if ((r & VT_VALMASK) >= VT_CONST) + r = 0; + if ((r2 & VT_VALMASK) >= VT_CONST) + r2 = 0; + if (ll || REX_BASE(r) || REX_BASE(r2)) + o(0x40 | REX_BASE(r) | (REX_BASE(r2) << 2) | (ll << 3)); + o(b); +} + +/* output a symbol and patch all calls to it */ +void gsym_addr(int t, int a) +{ + while (t) { + unsigned char *ptr = cur_text_section->data + t; + uint32_t n = read32le(ptr); /* next value */ + write32le(ptr, a - t - 4); + t = n; + } +} + +void gsym(int t) +{ + gsym_addr(t, ind); +} + +/* psym is used to put an instruction with a data field which is a + reference to a symbol. It is in fact the same as oad ! */ +#define psym oad + +static int is64_type(int t) +{ + return ((t & VT_BTYPE) == VT_PTR || + (t & VT_BTYPE) == VT_FUNC || + (t & VT_BTYPE) == VT_LLONG); +} + +/* instruction + 4 bytes data. Return the address of the data */ +ST_FUNC int oad(int c, int s) +{ + int ind1; + + o(c); + ind1 = ind + 4; + if (ind1 > cur_text_section->data_allocated) + section_realloc(cur_text_section, ind1); + write32le(cur_text_section->data + ind, s); + s = ind; + ind = ind1; + return s; +} + +ST_FUNC void gen_addr32(int r, Sym *sym, int c) +{ + if (r & VT_SYM) + greloc(cur_text_section, sym, ind, R_X86_64_32); + gen_le32(c); +} + +/* output constant with relocation if 'r & VT_SYM' is true */ +ST_FUNC void gen_addr64(int r, Sym *sym, int64_t c) +{ + if (r & VT_SYM) + greloc(cur_text_section, sym, ind, R_X86_64_64); + gen_le64(c); +} + +/* output constant with relocation if 'r & VT_SYM' is true */ +ST_FUNC void gen_addrpc32(int r, Sym *sym, int c) +{ + if (r & VT_SYM) + greloc(cur_text_section, sym, ind, R_X86_64_PC32); + gen_le32(c-4); +} + +/* output got address with relocation */ +static void gen_gotpcrel(int r, Sym *sym, int c) +{ +#ifndef TCC_TARGET_PE + Section *sr; + ElfW(Rela) *rel; + greloc(cur_text_section, sym, ind, R_X86_64_GOTPCREL); + sr = cur_text_section->reloc; + rel = (ElfW(Rela) *)(sr->data + sr->data_offset - sizeof(ElfW(Rela))); + rel->r_addend = -4; +#else + tcc_error("internal error: no GOT on PE: %s %x %x | %02x %02x %02x\n", + get_tok_str(sym->v, NULL), c, r, + cur_text_section->data[ind-3], + cur_text_section->data[ind-2], + cur_text_section->data[ind-1] + ); + greloc(cur_text_section, sym, ind, R_X86_64_PC32); +#endif + gen_le32(0); + if (c) { + /* we use add c, %xxx for displacement */ + orex(1, r, 0, 0x81); + o(0xc0 + REG_VALUE(r)); + gen_le32(c); + } +} + +static void gen_modrm_impl(int op_reg, int r, Sym *sym, int c, int is_got) +{ + op_reg = REG_VALUE(op_reg) << 3; + if ((r & VT_VALMASK) == VT_CONST) { + /* constant memory reference */ + o(0x05 | op_reg); + if (is_got) { + gen_gotpcrel(r, sym, c); + } else { + gen_addrpc32(r, sym, c); + } + } else if ((r & VT_VALMASK) == VT_LOCAL) { + /* currently, we use only ebp as base */ + if (c == (char)c) { + /* short reference */ + o(0x45 | op_reg); + g(c); + } else { + oad(0x85 | op_reg, c); + } + } else if ((r & VT_VALMASK) >= TREG_MEM) { + if (c) { + g(0x80 | op_reg | REG_VALUE(r)); + gen_le32(c); + } else { + g(0x00 | op_reg | REG_VALUE(r)); + } + } else { + g(0x00 | op_reg | REG_VALUE(r)); + } +} + +/* generate a modrm reference. 'op_reg' contains the addtionnal 3 + opcode bits */ +static void gen_modrm(int op_reg, int r, Sym *sym, int c) +{ + gen_modrm_impl(op_reg, r, sym, c, 0); +} + +/* generate a modrm reference. 'op_reg' contains the addtionnal 3 + opcode bits */ +static void gen_modrm64(int opcode, int op_reg, int r, Sym *sym, int c) +{ + int is_got; + is_got = (op_reg & TREG_MEM) && !(sym->type.t & VT_STATIC); + orex(1, r, op_reg, opcode); + gen_modrm_impl(op_reg, r, sym, c, is_got); +} + + +/* load 'r' from value 'sv' */ +void load(int r, SValue *sv) +{ + int v, t, ft, fc, fr; + SValue v1; + +#ifdef TCC_TARGET_PE + SValue v2; + sv = pe_getimport(sv, &v2); +#endif + + fr = sv->r; + ft = sv->type.t & ~VT_DEFSIGN; + fc = sv->c.i; + +#ifndef TCC_TARGET_PE + /* we use indirect access via got */ + if ((fr & VT_VALMASK) == VT_CONST && (fr & VT_SYM) && + (fr & VT_LVAL) && !(sv->sym->type.t & VT_STATIC)) { + /* use the result register as a temporal register */ + int tr = r | TREG_MEM; + if (is_float(ft)) { + /* we cannot use float registers as a temporal register */ + tr = get_reg(RC_INT) | TREG_MEM; + } + gen_modrm64(0x8b, tr, fr, sv->sym, 0); + + /* load from the temporal register */ + fr = tr | VT_LVAL; + } +#endif + + v = fr & VT_VALMASK; + if (fr & VT_LVAL) { + int b, ll; + if (v == VT_LLOCAL) { + v1.type.t = VT_PTR; + v1.r = VT_LOCAL | VT_LVAL; + v1.c.i = fc; + fr = r; + if (!(reg_classes[fr] & (RC_INT|RC_R11))) + fr = get_reg(RC_INT); + load(fr, &v1); + } + ll = 0; + if ((ft & VT_BTYPE) == VT_FLOAT) { + b = 0x6e0f66; + r = REG_VALUE(r); /* movd */ + } else if ((ft & VT_BTYPE) == VT_DOUBLE) { + b = 0x7e0ff3; /* movq */ + r = REG_VALUE(r); + } else if ((ft & VT_BTYPE) == VT_LDOUBLE) { + b = 0xdb, r = 5; /* fldt */ + } else if ((ft & VT_TYPE) == VT_BYTE || (ft & VT_TYPE) == VT_BOOL) { + b = 0xbe0f; /* movsbl */ + } else if ((ft & VT_TYPE) == (VT_BYTE | VT_UNSIGNED)) { + b = 0xb60f; /* movzbl */ + } else if ((ft & VT_TYPE) == VT_SHORT) { + b = 0xbf0f; /* movswl */ + } else if ((ft & VT_TYPE) == (VT_SHORT | VT_UNSIGNED)) { + b = 0xb70f; /* movzwl */ + } else { + assert(((ft & VT_BTYPE) == VT_INT) || ((ft & VT_BTYPE) == VT_LLONG) + || ((ft & VT_BTYPE) == VT_PTR) || ((ft & VT_BTYPE) == VT_ENUM) + || ((ft & VT_BTYPE) == VT_FUNC)); + ll = is64_type(ft); + b = 0x8b; + } + if (ll) { + gen_modrm64(b, r, fr, sv->sym, fc); + } else { + orex(ll, fr, r, b); + gen_modrm(r, fr, sv->sym, fc); + } + } else { + if (v == VT_CONST) { + if (fr & VT_SYM) { +#ifdef TCC_TARGET_PE + orex(1,0,r,0x8d); + o(0x05 + REG_VALUE(r) * 8); /* lea xx(%rip), r */ + gen_addrpc32(fr, sv->sym, fc); +#else + if (sv->sym->type.t & VT_STATIC) { + orex(1,0,r,0x8d); + o(0x05 + REG_VALUE(r) * 8); /* lea xx(%rip), r */ + gen_addrpc32(fr, sv->sym, fc); + } else { + orex(1,0,r,0x8b); + o(0x05 + REG_VALUE(r) * 8); /* mov xx(%rip), r */ + gen_gotpcrel(r, sv->sym, fc); + } +#endif + } else if (is64_type(ft)) { + orex(1,r,0, 0xb8 + REG_VALUE(r)); /* mov $xx, r */ + gen_le64(sv->c.i); + } else { + orex(0,r,0, 0xb8 + REG_VALUE(r)); /* mov $xx, r */ + gen_le32(fc); + } + } else if (v == VT_LOCAL) { + orex(1,0,r,0x8d); /* lea xxx(%ebp), r */ + gen_modrm(r, VT_LOCAL, sv->sym, fc); + } else if (v == VT_CMP) { + orex(0,r,0,0); + if ((fc & ~0x100) != TOK_NE) + oad(0xb8 + REG_VALUE(r), 0); /* mov $0, r */ + else + oad(0xb8 + REG_VALUE(r), 1); /* mov $1, r */ + if (fc & 0x100) + { + /* This was a float compare. If the parity bit is + set the result was unordered, meaning false for everything + except TOK_NE, and true for TOK_NE. */ + fc &= ~0x100; + o(0x037a + (REX_BASE(r) << 8)); + } + orex(0,r,0, 0x0f); /* setxx %br */ + o(fc); + o(0xc0 + REG_VALUE(r)); + } else if (v == VT_JMP || v == VT_JMPI) { + t = v & 1; + orex(0,r,0,0); + oad(0xb8 + REG_VALUE(r), t); /* mov $1, r */ + o(0x05eb + (REX_BASE(r) << 8)); /* jmp after */ + gsym(fc); + orex(0,r,0,0); + oad(0xb8 + REG_VALUE(r), t ^ 1); /* mov $0, r */ + } else if (v != r) { + if ((r >= TREG_XMM0) && (r <= TREG_XMM7)) { + if (v == TREG_ST0) { + /* gen_cvt_ftof(VT_DOUBLE); */ + o(0xf0245cdd); /* fstpl -0x10(%rsp) */ + /* movsd -0x10(%rsp),%xmmN */ + o(0x100ff2); + o(0x44 + REG_VALUE(r)*8); /* %xmmN */ + o(0xf024); + } else { + assert((v >= TREG_XMM0) && (v <= TREG_XMM7)); + if ((ft & VT_BTYPE) == VT_FLOAT) { + o(0x100ff3); + } else { + assert((ft & VT_BTYPE) == VT_DOUBLE); + o(0x100ff2); + } + o(0xc0 + REG_VALUE(v) + REG_VALUE(r)*8); + } + } else if (r == TREG_ST0) { + assert((v >= TREG_XMM0) && (v <= TREG_XMM7)); + /* gen_cvt_ftof(VT_LDOUBLE); */ + /* movsd %xmmN,-0x10(%rsp) */ + o(0x110ff2); + o(0x44 + REG_VALUE(r)*8); /* %xmmN */ + o(0xf024); + o(0xf02444dd); /* fldl -0x10(%rsp) */ + } else { + orex(1,r,v, 0x89); + o(0xc0 + REG_VALUE(r) + REG_VALUE(v) * 8); /* mov v, r */ + } + } + } +} + +/* store register 'r' in lvalue 'v' */ +void store(int r, SValue *v) +{ + int fr, bt, ft, fc; + int op64 = 0; + /* store the REX prefix in this variable when PIC is enabled */ + int pic = 0; + +#ifdef TCC_TARGET_PE + SValue v2; + v = pe_getimport(v, &v2); +#endif + + ft = v->type.t; + fc = v->c.i; + fr = v->r & VT_VALMASK; + bt = ft & VT_BTYPE; + +#ifndef TCC_TARGET_PE + /* we need to access the variable via got */ + if (fr == VT_CONST && (v->r & VT_SYM)) { + /* mov xx(%rip), %r11 */ + o(0x1d8b4c); + gen_gotpcrel(TREG_R11, v->sym, v->c.i); + pic = is64_type(bt) ? 0x49 : 0x41; + } +#endif + + /* XXX: incorrect if float reg to reg */ + if (bt == VT_FLOAT) { + o(0x66); + o(pic); + o(0x7e0f); /* movd */ + r = REG_VALUE(r); + } else if (bt == VT_DOUBLE) { + o(0x66); + o(pic); + o(0xd60f); /* movq */ + r = REG_VALUE(r); + } else if (bt == VT_LDOUBLE) { + o(0xc0d9); /* fld %st(0) */ + o(pic); + o(0xdb); /* fstpt */ + r = 7; + } else { + if (bt == VT_SHORT) + o(0x66); + o(pic); + if (bt == VT_BYTE || bt == VT_BOOL) + orex(0, 0, r, 0x88); + else if (is64_type(bt)) + op64 = 0x89; + else + orex(0, 0, r, 0x89); + } + if (pic) { + /* xxx r, (%r11) where xxx is mov, movq, fld, or etc */ + if (op64) + o(op64); + o(3 + (r << 3)); + } else if (op64) { + if (fr == VT_CONST || fr == VT_LOCAL || (v->r & VT_LVAL)) { + gen_modrm64(op64, r, v->r, v->sym, fc); + } else if (fr != r) { + /* XXX: don't we really come here? */ + abort(); + o(0xc0 + fr + r * 8); /* mov r, fr */ + } + } else { + if (fr == VT_CONST || fr == VT_LOCAL || (v->r & VT_LVAL)) { + gen_modrm(r, v->r, v->sym, fc); + } else if (fr != r) { + /* XXX: don't we really come here? */ + abort(); + o(0xc0 + fr + r * 8); /* mov r, fr */ + } + } +} + +/* 'is_jmp' is '1' if it is a jump */ +static void gcall_or_jmp(int is_jmp) +{ + int r; + if ((vtop->r & (VT_VALMASK | VT_LVAL)) == VT_CONST && + ((vtop->r & VT_SYM) || (vtop->c.i-4) == (int)(vtop->c.i-4))) { + /* constant case */ + if (vtop->r & VT_SYM) { + /* relocation case */ +#ifdef TCC_TARGET_PE + greloc(cur_text_section, vtop->sym, ind + 1, R_X86_64_PC32); +#else + greloc(cur_text_section, vtop->sym, ind + 1, R_X86_64_PLT32); +#endif + } else { + /* put an empty PC32 relocation */ + put_elf_reloc(symtab_section, cur_text_section, + ind + 1, R_X86_64_PC32, 0); + } + oad(0xe8 + is_jmp, vtop->c.i - 4); /* call/jmp im */ + } else { + /* otherwise, indirect call */ + r = TREG_R11; + load(r, vtop); + o(0x41); /* REX */ + o(0xff); /* call/jmp *r */ + o(0xd0 + REG_VALUE(r) + (is_jmp << 4)); + } +} + +#if defined(CONFIG_TCC_BCHECK) +#ifndef TCC_TARGET_PE +static addr_t func_bound_offset; +static unsigned long func_bound_ind; +#endif + +static void gen_static_call(int v) +{ + Sym *sym = external_global_sym(v, &func_old_type, 0); + oad(0xe8, -4); + greloc(cur_text_section, sym, ind-4, R_X86_64_PC32); +} + +/* generate a bounded pointer addition */ +ST_FUNC void gen_bounded_ptr_add(void) +{ + /* save all temporary registers */ + save_regs(0); + + /* prepare fast x86_64 function call */ + gv(RC_RAX); + o(0xc68948); // mov %rax,%rsi ## second arg in %rsi, this must be size + vtop--; + + gv(RC_RAX); + o(0xc78948); // mov %rax,%rdi ## first arg in %rdi, this must be ptr + vtop--; + + /* do a fast function call */ + gen_static_call(TOK___bound_ptr_add); + + /* returned pointer is in rax */ + vtop++; + vtop->r = TREG_RAX | VT_BOUNDED; + + + /* relocation offset of the bounding function call point */ + vtop->c.i = (cur_text_section->reloc->data_offset - sizeof(ElfW(Rela))); +} + +/* patch pointer addition in vtop so that pointer dereferencing is + also tested */ +ST_FUNC void gen_bounded_ptr_deref(void) +{ + addr_t func; + int size, align; + ElfW(Rela) *rel; + Sym *sym; + + size = 0; + /* XXX: put that code in generic part of tcc */ + if (!is_float(vtop->type.t)) { + if (vtop->r & VT_LVAL_BYTE) + size = 1; + else if (vtop->r & VT_LVAL_SHORT) + size = 2; + } + if (!size) + size = type_size(&vtop->type, &align); + switch(size) { + case 1: func = TOK___bound_ptr_indir1; break; + case 2: func = TOK___bound_ptr_indir2; break; + case 4: func = TOK___bound_ptr_indir4; break; + case 8: func = TOK___bound_ptr_indir8; break; + case 12: func = TOK___bound_ptr_indir12; break; + case 16: func = TOK___bound_ptr_indir16; break; + default: + tcc_error("unhandled size when dereferencing bounded pointer"); + func = 0; + break; + } + + sym = external_global_sym(func, &func_old_type, 0); + if (!sym->c) + put_extern_sym(sym, NULL, 0, 0); + + /* patch relocation */ + /* XXX: find a better solution ? */ + + rel = (ElfW(Rela) *)(cur_text_section->reloc->data + vtop->c.i); + rel->r_info = ELF64_R_INFO(sym->c, ELF64_R_TYPE(rel->r_info)); +} +#endif + +#ifdef TCC_TARGET_PE + +#define REGN 4 +static const uint8_t arg_regs[REGN] = { + TREG_RCX, TREG_RDX, TREG_R8, TREG_R9 +}; + +/* Prepare arguments in R10 and R11 rather than RCX and RDX + because gv() will not ever use these */ +static int arg_prepare_reg(int idx) { + if (idx == 0 || idx == 1) + /* idx=0: r10, idx=1: r11 */ + return idx + 10; + else + return arg_regs[idx]; +} + +static int func_scratch; + +/* Generate function call. The function address is pushed first, then + all the parameters in call order. This functions pops all the + parameters and the function address. */ + +void gen_offs_sp(int b, int r, int d) +{ + orex(1,0,r & 0x100 ? 0 : r, b); + if (d == (char)d) { + o(0x2444 | (REG_VALUE(r) << 3)); + g(d); + } else { + o(0x2484 | (REG_VALUE(r) << 3)); + gen_le32(d); + } +} + +/* Return the number of registers needed to return the struct, or 0 if + returning via struct pointer. */ +ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *ret_align, int *regsize) +{ + int size, align; + *regsize = 8; + *ret_align = 1; // Never have to re-align return values for x86-64 + size = type_size(vt, &align); + ret->ref = NULL; + if (size > 8) { + return 0; + } else if (size > 4) { + ret->t = VT_LLONG; + return 1; + } else if (size > 2) { + ret->t = VT_INT; + return 1; + } else if (size > 1) { + ret->t = VT_SHORT; + return 1; + } else { + ret->t = VT_BYTE; + return 1; + } +} + +static int is_sse_float(int t) { + int bt; + bt = t & VT_BTYPE; + return bt == VT_DOUBLE || bt == VT_FLOAT; +} + +int gfunc_arg_size(CType *type) { + int align; + if (type->t & (VT_ARRAY|VT_BITFIELD)) + return 8; + return type_size(type, &align); +} + +void gfunc_call(int nb_args) +{ + int size, r, args_size, i, d, bt, struct_size; + int arg; + + args_size = (nb_args < REGN ? REGN : nb_args) * PTR_SIZE; + arg = nb_args; + + /* for struct arguments, we need to call memcpy and the function + call breaks register passing arguments we are preparing. + So, we process arguments which will be passed by stack first. */ + struct_size = args_size; + for(i = 0; i < nb_args; i++) { + SValue *sv; + + --arg; + sv = &vtop[-i]; + bt = (sv->type.t & VT_BTYPE); + size = gfunc_arg_size(&sv->type); + + if (size <= 8) + continue; /* arguments smaller than 8 bytes passed in registers or on stack */ + + if (bt == VT_STRUCT) { + /* align to stack align size */ + size = (size + 15) & ~15; + /* generate structure store */ + r = get_reg(RC_INT); + gen_offs_sp(0x8d, r, struct_size); + struct_size += size; + + /* generate memcpy call */ + vset(&sv->type, r | VT_LVAL, 0); + vpushv(sv); + vstore(); + --vtop; + } else if (bt == VT_LDOUBLE) { + gv(RC_ST0); + gen_offs_sp(0xdb, 0x107, struct_size); + struct_size += 16; + } + } + + if (func_scratch < struct_size) + func_scratch = struct_size; + + arg = nb_args; + struct_size = args_size; + + for(i = 0; i < nb_args; i++) { + --arg; + bt = (vtop->type.t & VT_BTYPE); + + size = gfunc_arg_size(&vtop->type); + if (size > 8) { + /* align to stack align size */ + size = (size + 15) & ~15; + if (arg >= REGN) { + d = get_reg(RC_INT); + gen_offs_sp(0x8d, d, struct_size); + gen_offs_sp(0x89, d, arg*8); + } else { + d = arg_prepare_reg(arg); + gen_offs_sp(0x8d, d, struct_size); + } + struct_size += size; + } else { + if (is_sse_float(vtop->type.t)) { + gv(RC_XMM0); /* only use one float register */ + if (arg >= REGN) { + /* movq %xmm0, j*8(%rsp) */ + gen_offs_sp(0xd60f66, 0x100, arg*8); + } else { + /* movaps %xmm0, %xmmN */ + o(0x280f); + o(0xc0 + (arg << 3)); + d = arg_prepare_reg(arg); + /* mov %xmm0, %rxx */ + o(0x66); + orex(1,d,0, 0x7e0f); + o(0xc0 + REG_VALUE(d)); + } + } else { + if (bt == VT_STRUCT) { + vtop->type.ref = NULL; + vtop->type.t = size > 4 ? VT_LLONG : size > 2 ? VT_INT + : size > 1 ? VT_SHORT : VT_BYTE; + } + + r = gv(RC_INT); + if (arg >= REGN) { + gen_offs_sp(0x89, r, arg*8); + } else { + d = arg_prepare_reg(arg); + orex(1,d,r,0x89); /* mov */ + o(0xc0 + REG_VALUE(r) * 8 + REG_VALUE(d)); + } + } + } + vtop--; + } + save_regs(0); + + /* Copy R10 and R11 into RCX and RDX, respectively */ + if (nb_args > 0) { + o(0xd1894c); /* mov %r10, %rcx */ + if (nb_args > 1) { + o(0xda894c); /* mov %r11, %rdx */ + } + } + + gcall_or_jmp(0); + vtop--; +} + + +#define FUNC_PROLOG_SIZE 11 + +/* generate function prolog of type 't' */ +void gfunc_prolog(CType *func_type) +{ + int addr, reg_param_index, bt, size; + Sym *sym; + CType *type; + + func_ret_sub = 0; + func_scratch = 0; + loc = 0; + + addr = PTR_SIZE * 2; + ind += FUNC_PROLOG_SIZE; + func_sub_sp_offset = ind; + reg_param_index = 0; + + sym = func_type->ref; + + /* if the function returns a structure, then add an + implicit pointer parameter */ + func_vt = sym->type; + func_var = (sym->c == FUNC_ELLIPSIS); + size = gfunc_arg_size(&func_vt); + if (size > 8) { + gen_modrm64(0x89, arg_regs[reg_param_index], VT_LOCAL, NULL, addr); + func_vc = addr; + reg_param_index++; + addr += 8; + } + + /* define parameters */ + while ((sym = sym->next) != NULL) { + type = &sym->type; + bt = type->t & VT_BTYPE; + size = gfunc_arg_size(type); + if (size > 8) { + if (reg_param_index < REGN) { + gen_modrm64(0x89, arg_regs[reg_param_index], VT_LOCAL, NULL, addr); + } + sym_push(sym->v & ~SYM_FIELD, type, VT_LOCAL | VT_LVAL | VT_REF, addr); + } else { + if (reg_param_index < REGN) { + /* save arguments passed by register */ + if ((bt == VT_FLOAT) || (bt == VT_DOUBLE)) { + o(0xd60f66); /* movq */ + gen_modrm(reg_param_index, VT_LOCAL, NULL, addr); + } else { + gen_modrm64(0x89, arg_regs[reg_param_index], VT_LOCAL, NULL, addr); + } + } + sym_push(sym->v & ~SYM_FIELD, type, VT_LOCAL | VT_LVAL, addr); + } + addr += 8; + reg_param_index++; + } + + while (reg_param_index < REGN) { + if (func_type->ref->c == FUNC_ELLIPSIS) { + gen_modrm64(0x89, arg_regs[reg_param_index], VT_LOCAL, NULL, addr); + addr += 8; + } + reg_param_index++; + } +} + +/* generate function epilog */ +void gfunc_epilog(void) +{ + int v, saved_ind; + + o(0xc9); /* leave */ + if (func_ret_sub == 0) { + o(0xc3); /* ret */ + } else { + o(0xc2); /* ret n */ + g(func_ret_sub); + g(func_ret_sub >> 8); + } + + saved_ind = ind; + ind = func_sub_sp_offset - FUNC_PROLOG_SIZE; + /* align local size to word & save local variables */ + v = (func_scratch + -loc + 15) & -16; + + if (v >= 4096) { + Sym *sym = external_global_sym(TOK___chkstk, &func_old_type, 0); + oad(0xb8, v); /* mov stacksize, %eax */ + oad(0xe8, -4); /* call __chkstk, (does the stackframe too) */ + greloc(cur_text_section, sym, ind-4, R_X86_64_PC32); + o(0x90); /* fill for FUNC_PROLOG_SIZE = 11 bytes */ + } else { + o(0xe5894855); /* push %rbp, mov %rsp, %rbp */ + o(0xec8148); /* sub rsp, stacksize */ + gen_le32(v); + } + + cur_text_section->data_offset = saved_ind; + pe_add_unwind_data(ind, saved_ind, v); + ind = cur_text_section->data_offset; +} + +#else + +static void gadd_sp(int val) +{ + if (val == (char)val) { + o(0xc48348); + g(val); + } else { + oad(0xc48148, val); /* add $xxx, %rsp */ + } +} + +typedef enum X86_64_Mode { + x86_64_mode_none, + x86_64_mode_memory, + x86_64_mode_integer, + x86_64_mode_sse, + x86_64_mode_x87 +} X86_64_Mode; + +static X86_64_Mode classify_x86_64_merge(X86_64_Mode a, X86_64_Mode b) +{ + if (a == b) + return a; + else if (a == x86_64_mode_none) + return b; + else if (b == x86_64_mode_none) + return a; + else if ((a == x86_64_mode_memory) || (b == x86_64_mode_memory)) + return x86_64_mode_memory; + else if ((a == x86_64_mode_integer) || (b == x86_64_mode_integer)) + return x86_64_mode_integer; + else if ((a == x86_64_mode_x87) || (b == x86_64_mode_x87)) + return x86_64_mode_memory; + else + return x86_64_mode_sse; +} + +static X86_64_Mode classify_x86_64_inner(CType *ty) +{ + X86_64_Mode mode; + Sym *f; + + switch (ty->t & VT_BTYPE) { + case VT_VOID: return x86_64_mode_none; + + case VT_INT: + case VT_BYTE: + case VT_SHORT: + case VT_LLONG: + case VT_BOOL: + case VT_PTR: + case VT_FUNC: + case VT_ENUM: return x86_64_mode_integer; + + case VT_FLOAT: + case VT_DOUBLE: return x86_64_mode_sse; + + case VT_LDOUBLE: return x86_64_mode_x87; + + case VT_STRUCT: + f = ty->ref; + + mode = x86_64_mode_none; + for (f = f->next; f; f = f->next) + mode = classify_x86_64_merge(mode, classify_x86_64_inner(&f->type)); + + return mode; + } + + assert(0); +} + +static X86_64_Mode classify_x86_64_arg(CType *ty, CType *ret, int *psize, int *palign, int *reg_count) +{ + X86_64_Mode mode; + int size, align, ret_t = 0; + + if (ty->t & (VT_BITFIELD|VT_ARRAY)) { + *psize = 8; + *palign = 8; + *reg_count = 1; + ret_t = ty->t; + mode = x86_64_mode_integer; + } else { + size = type_size(ty, &align); + *psize = (size + 7) & ~7; + *palign = (align + 7) & ~7; + + if (size > 16) { + mode = x86_64_mode_memory; + } else { + mode = classify_x86_64_inner(ty); + switch (mode) { + case x86_64_mode_integer: + if (size > 8) { + *reg_count = 2; + ret_t = VT_QLONG; + } else { + *reg_count = 1; + ret_t = (size > 4) ? VT_LLONG : VT_INT; + } + break; + + case x86_64_mode_x87: + *reg_count = 1; + ret_t = VT_LDOUBLE; + break; + + case x86_64_mode_sse: + if (size > 8) { + *reg_count = 2; + ret_t = VT_QFLOAT; + } else { + *reg_count = 1; + ret_t = (size > 4) ? VT_DOUBLE : VT_FLOAT; + } + break; + default: break; /* nothing to be done for x86_64_mode_memory and x86_64_mode_none*/ + } + } + } + + if (ret) { + ret->ref = NULL; + ret->t = ret_t; + } + + return mode; +} + +ST_FUNC int classify_x86_64_va_arg(CType *ty) +{ + /* This definition must be synced with stdarg.h */ + enum __va_arg_type { + __va_gen_reg, __va_float_reg, __va_stack + }; + int size, align, reg_count; + X86_64_Mode mode = classify_x86_64_arg(ty, NULL, &size, &align, ®_count); + switch (mode) { + default: return __va_stack; + case x86_64_mode_integer: return __va_gen_reg; + case x86_64_mode_sse: return __va_float_reg; + } +} + +/* Return the number of registers needed to return the struct, or 0 if + returning via struct pointer. */ +ST_FUNC int gfunc_sret(CType *vt, int variadic, CType *ret, int *ret_align, int *regsize) +{ + int size, align, reg_count; + *ret_align = 1; // Never have to re-align return values for x86-64 + *regsize = 8; + return (classify_x86_64_arg(vt, ret, &size, &align, ®_count) != x86_64_mode_memory); +} + +#define REGN 6 +static const uint8_t arg_regs[REGN] = { + TREG_RDI, TREG_RSI, TREG_RDX, TREG_RCX, TREG_R8, TREG_R9 +}; + +static int arg_prepare_reg(int idx) { + if (idx == 2 || idx == 3) + /* idx=2: r10, idx=3: r11 */ + return idx + 8; + else + return arg_regs[idx]; +} + +/* Generate function call. The function address is pushed first, then + all the parameters in call order. This functions pops all the + parameters and the function address. */ +void gfunc_call(int nb_args) +{ + X86_64_Mode mode; + CType type; + int size, align, r, args_size, stack_adjust, run_start, run_end, i, reg_count; + int nb_reg_args = 0; + int nb_sse_args = 0; + int sse_reg, gen_reg; + + /* calculate the number of integer/float register arguments */ + for(i = 0; i < nb_args; i++) { + mode = classify_x86_64_arg(&vtop[-i].type, NULL, &size, &align, ®_count); + if (mode == x86_64_mode_sse) + nb_sse_args += reg_count; + else if (mode == x86_64_mode_integer) + nb_reg_args += reg_count; + } + + /* arguments are collected in runs. Each run is a collection of 8-byte aligned arguments + and ended by a 16-byte aligned argument. This is because, from the point of view of + the callee, argument alignment is computed from the bottom up. */ + /* for struct arguments, we need to call memcpy and the function + call breaks register passing arguments we are preparing. + So, we process arguments which will be passed by stack first. */ + gen_reg = nb_reg_args; + sse_reg = nb_sse_args; + run_start = 0; + args_size = 0; + while (run_start != nb_args) { + int run_gen_reg = gen_reg, run_sse_reg = sse_reg; + + run_end = nb_args; + stack_adjust = 0; + for(i = run_start; (i < nb_args) && (run_end == nb_args); i++) { + mode = classify_x86_64_arg(&vtop[-i].type, NULL, &size, &align, ®_count); + switch (mode) { + case x86_64_mode_memory: + case x86_64_mode_x87: + stack_arg: + if (align == 16) + run_end = i; + else + stack_adjust += size; + break; + + case x86_64_mode_sse: + sse_reg -= reg_count; + if (sse_reg + reg_count > 8) goto stack_arg; + break; + + case x86_64_mode_integer: + gen_reg -= reg_count; + if (gen_reg + reg_count > REGN) goto stack_arg; + break; + default: break; /* nothing to be done for x86_64_mode_none */ + } + } + + gen_reg = run_gen_reg; + sse_reg = run_sse_reg; + + /* adjust stack to align SSE boundary */ + if (stack_adjust &= 15) { + /* fetch cpu flag before the following sub will change the value */ + if (vtop >= vstack && (vtop->r & VT_VALMASK) == VT_CMP) + gv(RC_INT); + + stack_adjust = 16 - stack_adjust; + o(0x48); + oad(0xec81, stack_adjust); /* sub $xxx, %rsp */ + args_size += stack_adjust; + } + + for(i = run_start; i < run_end;) { + /* Swap argument to top, it will possibly be changed here, + and might use more temps. At the end of the loop we keep + in on the stack and swap it back to its original position + if it is a register. */ + SValue tmp = vtop[0]; + int arg_stored = 1; + + vtop[0] = vtop[-i]; + vtop[-i] = tmp; + mode = classify_x86_64_arg(&vtop->type, NULL, &size, &align, ®_count); + + switch (vtop->type.t & VT_BTYPE) { + case VT_STRUCT: + if (mode == x86_64_mode_sse) { + if (sse_reg > 8) + sse_reg -= reg_count; + else + arg_stored = 0; + } else if (mode == x86_64_mode_integer) { + if (gen_reg > REGN) + gen_reg -= reg_count; + else + arg_stored = 0; + } + + if (arg_stored) { + /* allocate the necessary size on stack */ + o(0x48); + oad(0xec81, size); /* sub $xxx, %rsp */ + /* generate structure store */ + r = get_reg(RC_INT); + orex(1, r, 0, 0x89); /* mov %rsp, r */ + o(0xe0 + REG_VALUE(r)); + vset(&vtop->type, r | VT_LVAL, 0); + vswap(); + vstore(); + args_size += size; + } + break; + + case VT_LDOUBLE: + assert(0); + break; + + case VT_FLOAT: + case VT_DOUBLE: + assert(mode == x86_64_mode_sse); + if (sse_reg > 8) { + --sse_reg; + r = gv(RC_FLOAT); + o(0x50); /* push $rax */ + /* movq %xmmN, (%rsp) */ + o(0xd60f66); + o(0x04 + REG_VALUE(r)*8); + o(0x24); + args_size += size; + } else { + arg_stored = 0; + } + break; + + default: + assert(mode == x86_64_mode_integer); + /* simple type */ + /* XXX: implicit cast ? */ + if (gen_reg > REGN) { + --gen_reg; + r = gv(RC_INT); + orex(0,r,0,0x50 + REG_VALUE(r)); /* push r */ + args_size += size; + } else { + arg_stored = 0; + } + break; + } + + /* And swap the argument back to it's original position. */ + tmp = vtop[0]; + vtop[0] = vtop[-i]; + vtop[-i] = tmp; + + if (arg_stored) { + vrotb(i+1); + assert((vtop->type.t == tmp.type.t) && (vtop->r == tmp.r)); + vpop(); + --nb_args; + --run_end; + } else { + ++i; + } + } + + /* handle 16 byte aligned arguments at end of run */ + run_start = i = run_end; + while (i < nb_args) { + /* Rotate argument to top since it will always be popped */ + mode = classify_x86_64_arg(&vtop[-i].type, NULL, &size, &align, ®_count); + if (align != 16) + break; + + vrotb(i+1); + + if ((vtop->type.t & VT_BTYPE) == VT_LDOUBLE) { + gv(RC_ST0); + oad(0xec8148, size); /* sub $xxx, %rsp */ + o(0x7cdb); /* fstpt 0(%rsp) */ + g(0x24); + g(0x00); + args_size += size; + } else { + assert(mode == x86_64_mode_memory); + + /* allocate the necessary size on stack */ + o(0x48); + oad(0xec81, size); /* sub $xxx, %rsp */ + /* generate structure store */ + r = get_reg(RC_INT); + orex(1, r, 0, 0x89); /* mov %rsp, r */ + o(0xe0 + REG_VALUE(r)); + vset(&vtop->type, r | VT_LVAL, 0); + vswap(); + vstore(); + args_size += size; + } + + vpop(); + --nb_args; + } + } + + /* XXX This should be superfluous. */ + save_regs(0); /* save used temporary registers */ + + /* then, we prepare register passing arguments. + Note that we cannot set RDX and RCX in this loop because gv() + may break these temporary registers. Let's use R10 and R11 + instead of them */ + assert(gen_reg <= REGN); + assert(sse_reg <= 8); + for(i = 0; i < nb_args; i++) { + mode = classify_x86_64_arg(&vtop->type, &type, &size, &align, ®_count); + /* Alter stack entry type so that gv() knows how to treat it */ + vtop->type = type; + if (mode == x86_64_mode_sse) { + if (reg_count == 2) { + sse_reg -= 2; + gv(RC_FRET); /* Use pair load into xmm0 & xmm1 */ + if (sse_reg) { /* avoid redundant movaps %xmm0, %xmm0 */ + /* movaps %xmm0, %xmmN */ + o(0x280f); + o(0xc0 + (sse_reg << 3)); + /* movaps %xmm1, %xmmN */ + o(0x280f); + o(0xc1 + ((sse_reg+1) << 3)); + } + } else { + assert(reg_count == 1); + --sse_reg; + /* Load directly to register */ + gv(RC_XMM0 << sse_reg); + } + } else if (mode == x86_64_mode_integer) { + /* simple type */ + /* XXX: implicit cast ? */ + int d; + gen_reg -= reg_count; + r = gv(RC_INT); + d = arg_prepare_reg(gen_reg); + orex(1,d,r,0x89); /* mov */ + o(0xc0 + REG_VALUE(r) * 8 + REG_VALUE(d)); + if (reg_count == 2) { + d = arg_prepare_reg(gen_reg+1); + orex(1,d,vtop->r2,0x89); /* mov */ + o(0xc0 + REG_VALUE(vtop->r2) * 8 + REG_VALUE(d)); + } + } + vtop--; + } + assert(gen_reg == 0); + assert(sse_reg == 0); + + /* We shouldn't have many operands on the stack anymore, but the + call address itself is still there, and it might be in %eax + (or edx/ecx) currently, which the below writes would clobber. + So evict all remaining operands here. */ + save_regs(0); + + /* Copy R10 and R11 into RDX and RCX, respectively */ + if (nb_reg_args > 2) { + o(0xd2894c); /* mov %r10, %rdx */ + if (nb_reg_args > 3) { + o(0xd9894c); /* mov %r11, %rcx */ + } + } + + oad(0xb8, nb_sse_args < 8 ? nb_sse_args : 8); /* mov nb_sse_args, %eax */ + gcall_or_jmp(0); + if (args_size) + gadd_sp(args_size); + vtop--; +} + + +#define FUNC_PROLOG_SIZE 11 + +static void push_arg_reg(int i) { + loc -= 8; + gen_modrm64(0x89, arg_regs[i], VT_LOCAL, NULL, loc); +} + +/* generate function prolog of type 't' */ +void gfunc_prolog(CType *func_type) +{ + X86_64_Mode mode; + int i, addr, align, size, reg_count; + int param_addr = 0, reg_param_index, sse_param_index; + Sym *sym; + CType *type; + + sym = func_type->ref; + addr = PTR_SIZE * 2; + loc = 0; + ind += FUNC_PROLOG_SIZE; + func_sub_sp_offset = ind; + func_ret_sub = 0; + + if (func_type->ref->c == FUNC_ELLIPSIS) { + int seen_reg_num, seen_sse_num, seen_stack_size; + seen_reg_num = seen_sse_num = 0; + /* frame pointer and return address */ + seen_stack_size = PTR_SIZE * 2; + /* count the number of seen parameters */ + sym = func_type->ref; + while ((sym = sym->next) != NULL) { + type = &sym->type; + mode = classify_x86_64_arg(type, NULL, &size, &align, ®_count); + switch (mode) { + default: + stack_arg: + seen_stack_size = ((seen_stack_size + align - 1) & -align) + size; + break; + + case x86_64_mode_integer: + if (seen_reg_num + reg_count <= 8) { + seen_reg_num += reg_count; + } else { + seen_reg_num = 8; + goto stack_arg; + } + break; + + case x86_64_mode_sse: + if (seen_sse_num + reg_count <= 8) { + seen_sse_num += reg_count; + } else { + seen_sse_num = 8; + goto stack_arg; + } + break; + } + } + + loc -= 16; + /* movl $0x????????, -0x10(%rbp) */ + o(0xf045c7); + gen_le32(seen_reg_num * 8); + /* movl $0x????????, -0xc(%rbp) */ + o(0xf445c7); + gen_le32(seen_sse_num * 16 + 48); + /* movl $0x????????, -0x8(%rbp) */ + o(0xf845c7); + gen_le32(seen_stack_size); + + /* save all register passing arguments */ + for (i = 0; i < 8; i++) { + loc -= 16; + o(0xd60f66); /* movq */ + gen_modrm(7 - i, VT_LOCAL, NULL, loc); + /* movq $0, loc+8(%rbp) */ + o(0x85c748); + gen_le32(loc + 8); + gen_le32(0); + } + for (i = 0; i < REGN; i++) { + push_arg_reg(REGN-1-i); + } + } + + sym = func_type->ref; + reg_param_index = 0; + sse_param_index = 0; + + /* if the function returns a structure, then add an + implicit pointer parameter */ + func_vt = sym->type; + mode = classify_x86_64_arg(&func_vt, NULL, &size, &align, ®_count); + if (mode == x86_64_mode_memory) { + push_arg_reg(reg_param_index); + func_vc = loc; + reg_param_index++; + } + /* define parameters */ + while ((sym = sym->next) != NULL) { + type = &sym->type; + mode = classify_x86_64_arg(type, NULL, &size, &align, ®_count); + switch (mode) { + case x86_64_mode_sse: + if (sse_param_index + reg_count <= 8) { + /* save arguments passed by register */ + loc -= reg_count * 8; + param_addr = loc; + for (i = 0; i < reg_count; ++i) { + o(0xd60f66); /* movq */ + gen_modrm(sse_param_index, VT_LOCAL, NULL, param_addr + i*8); + ++sse_param_index; + } + } else { + addr = (addr + align - 1) & -align; + param_addr = addr; + addr += size; + } + break; + + case x86_64_mode_memory: + case x86_64_mode_x87: + addr = (addr + align - 1) & -align; + param_addr = addr; + addr += size; + break; + + case x86_64_mode_integer: { + if (reg_param_index + reg_count <= REGN) { + /* save arguments passed by register */ + loc -= reg_count * 8; + param_addr = loc; + for (i = 0; i < reg_count; ++i) { + gen_modrm64(0x89, arg_regs[reg_param_index], VT_LOCAL, NULL, param_addr + i*8); + ++reg_param_index; + } + } else { + addr = (addr + align - 1) & -align; + param_addr = addr; + addr += size; + } + break; + } + default: break; /* nothing to be done for x86_64_mode_none */ + } + sym_push(sym->v & ~SYM_FIELD, type, + VT_LOCAL | VT_LVAL, param_addr); + } + +#ifdef CONFIG_TCC_BCHECK + /* leave some room for bound checking code */ + if (tcc_state->do_bounds_check) { + func_bound_offset = lbounds_section->data_offset; + func_bound_ind = ind; + oad(0xb8, 0); /* lbound section pointer */ + o(0xc78948); /* mov %rax,%rdi ## first arg in %rdi, this must be ptr */ + oad(0xb8, 0); /* call to function */ + } +#endif +} + +/* generate function epilog */ +void gfunc_epilog(void) +{ + int v, saved_ind; + +#ifdef CONFIG_TCC_BCHECK + if (tcc_state->do_bounds_check + && func_bound_offset != lbounds_section->data_offset) + { + addr_t saved_ind; + addr_t *bounds_ptr; + Sym *sym_data; + + /* add end of table info */ + bounds_ptr = section_ptr_add(lbounds_section, sizeof(addr_t)); + *bounds_ptr = 0; + + /* generate bound local allocation */ + sym_data = get_sym_ref(&char_pointer_type, lbounds_section, + func_bound_offset, lbounds_section->data_offset); + saved_ind = ind; + ind = func_bound_ind; + greloc(cur_text_section, sym_data, ind + 1, R_386_32); + ind = ind + 5 + 3; + gen_static_call(TOK___bound_local_new); + ind = saved_ind; + + /* generate bound check local freeing */ + o(0x5250); /* save returned value, if any */ + greloc(cur_text_section, sym_data, ind + 1, R_386_32); + oad(0xb8, 0); /* mov xxx, %rax */ + o(0xc78948); /* mov %rax,%rdi ## first arg in %rdi, this must be ptr */ + gen_static_call(TOK___bound_local_delete); + o(0x585a); /* restore returned value, if any */ + } +#endif + o(0xc9); /* leave */ + if (func_ret_sub == 0) { + o(0xc3); /* ret */ + } else { + o(0xc2); /* ret n */ + g(func_ret_sub); + g(func_ret_sub >> 8); + } + /* align local size to word & save local variables */ + v = (-loc + 15) & -16; + saved_ind = ind; + ind = func_sub_sp_offset - FUNC_PROLOG_SIZE; + o(0xe5894855); /* push %rbp, mov %rsp, %rbp */ + o(0xec8148); /* sub rsp, stacksize */ + gen_le32(v); + ind = saved_ind; +} + +#endif /* not PE */ + +/* generate a jump to a label */ +int gjmp(int t) +{ + return psym(0xe9, t); +} + +/* generate a jump to a fixed address */ +void gjmp_addr(int a) +{ + int r; + r = a - ind - 2; + if (r == (char)r) { + g(0xeb); + g(r); + } else { + oad(0xe9, a - ind - 5); + } +} + +/* generate a test. set 'inv' to invert test. Stack entry is popped */ +int gtst(int inv, int t) +{ + int v = vtop->r & VT_VALMASK; + if (v == VT_CMP) { + /* fast case : can jump directly since flags are set */ + if (vtop->c.i & 0x100) + { + /* This was a float compare. If the parity flag is set + the result was unordered. For anything except != this + means false and we don't jump (anding both conditions). + For != this means true (oring both). + Take care about inverting the test. We need to jump + to our target if the result was unordered and test wasn't NE, + otherwise if unordered we don't want to jump. */ + vtop->c.i &= ~0x100; + if (inv == (vtop->c.i == TOK_NE)) + o(0x067a); /* jp +6 */ + else + { + g(0x0f); + t = psym(0x8a, t); /* jp t */ + } + } + g(0x0f); + t = psym((vtop->c.i - 16) ^ inv, t); + } else if (v == VT_JMP || v == VT_JMPI) { + /* && or || optimization */ + if ((v & 1) == inv) { + /* insert vtop->c jump list in t */ + uint32_t n1, n = vtop->c.i; + if (n) { + while ((n1 = read32le(cur_text_section->data + n))) + n = n1; + write32le(cur_text_section->data + n, t); + t = vtop->c.i; + } + } else { + t = gjmp(t); + gsym(vtop->c.i); + } + } + vtop--; + return t; +} + +/* generate an integer binary operation */ +void gen_opi(int op) +{ + int r, fr, opc, c; + int ll, uu, cc; + + ll = is64_type(vtop[-1].type.t); + uu = (vtop[-1].type.t & VT_UNSIGNED) != 0; + cc = (vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST; + + switch(op) { + case '+': + case TOK_ADDC1: /* add with carry generation */ + opc = 0; + gen_op8: + if (cc && (!ll || (int)vtop->c.i == vtop->c.i)) { + /* constant case */ + vswap(); + r = gv(RC_INT); + vswap(); + c = vtop->c.i; + if (c == (char)c) { + /* XXX: generate inc and dec for smaller code ? */ + orex(ll, r, 0, 0x83); + o(0xc0 | (opc << 3) | REG_VALUE(r)); + g(c); + } else { + orex(ll, r, 0, 0x81); + oad(0xc0 | (opc << 3) | REG_VALUE(r), c); + } + } else { + gv2(RC_INT, RC_INT); + r = vtop[-1].r; + fr = vtop[0].r; + orex(ll, r, fr, (opc << 3) | 0x01); + o(0xc0 + REG_VALUE(r) + REG_VALUE(fr) * 8); + } + vtop--; + if (op >= TOK_ULT && op <= TOK_GT) { + vtop->r = VT_CMP; + vtop->c.i = op; + } + break; + case '-': + case TOK_SUBC1: /* sub with carry generation */ + opc = 5; + goto gen_op8; + case TOK_ADDC2: /* add with carry use */ + opc = 2; + goto gen_op8; + case TOK_SUBC2: /* sub with carry use */ + opc = 3; + goto gen_op8; + case '&': + opc = 4; + goto gen_op8; + case '^': + opc = 6; + goto gen_op8; + case '|': + opc = 1; + goto gen_op8; + case '*': + gv2(RC_INT, RC_INT); + r = vtop[-1].r; + fr = vtop[0].r; + orex(ll, fr, r, 0xaf0f); /* imul fr, r */ + o(0xc0 + REG_VALUE(fr) + REG_VALUE(r) * 8); + vtop--; + break; + case TOK_SHL: + opc = 4; + goto gen_shift; + case TOK_SHR: + opc = 5; + goto gen_shift; + case TOK_SAR: + opc = 7; + gen_shift: + opc = 0xc0 | (opc << 3); + if (cc) { + /* constant case */ + vswap(); + r = gv(RC_INT); + vswap(); + orex(ll, r, 0, 0xc1); /* shl/shr/sar $xxx, r */ + o(opc | REG_VALUE(r)); + g(vtop->c.i & (ll ? 63 : 31)); + } else { + /* we generate the shift in ecx */ + gv2(RC_INT, RC_RCX); + r = vtop[-1].r; + orex(ll, r, 0, 0xd3); /* shl/shr/sar %cl, r */ + o(opc | REG_VALUE(r)); + } + vtop--; + break; + case TOK_UDIV: + case TOK_UMOD: + uu = 1; + goto divmod; + case '/': + case '%': + case TOK_PDIV: + uu = 0; + divmod: + /* first operand must be in eax */ + /* XXX: need better constraint for second operand */ + gv2(RC_RAX, RC_RCX); + r = vtop[-1].r; + fr = vtop[0].r; + vtop--; + save_reg(TREG_RDX); + orex(ll, 0, 0, uu ? 0xd231 : 0x99); /* xor %edx,%edx : cqto */ + orex(ll, fr, 0, 0xf7); /* div fr, %eax */ + o((uu ? 0xf0 : 0xf8) + REG_VALUE(fr)); + if (op == '%' || op == TOK_UMOD) + r = TREG_RDX; + else + r = TREG_RAX; + vtop->r = r; + break; + default: + opc = 7; + goto gen_op8; + } +} + +void gen_opl(int op) +{ + gen_opi(op); +} + +/* generate a floating point operation 'v = t1 op t2' instruction. The + two operands are guaranted to have the same floating point type */ +/* XXX: need to use ST1 too */ +void gen_opf(int op) +{ + int a, ft, fc, swapped, r; + int float_type = + (vtop->type.t & VT_BTYPE) == VT_LDOUBLE ? RC_ST0 : RC_FLOAT; + + /* convert constants to memory references */ + if ((vtop[-1].r & (VT_VALMASK | VT_LVAL)) == VT_CONST) { + vswap(); + gv(float_type); + vswap(); + } + if ((vtop[0].r & (VT_VALMASK | VT_LVAL)) == VT_CONST) + gv(float_type); + + /* must put at least one value in the floating point register */ + if ((vtop[-1].r & VT_LVAL) && + (vtop[0].r & VT_LVAL)) { + vswap(); + gv(float_type); + vswap(); + } + swapped = 0; + /* swap the stack if needed so that t1 is the register and t2 is + the memory reference */ + if (vtop[-1].r & VT_LVAL) { + vswap(); + swapped = 1; + } + if ((vtop->type.t & VT_BTYPE) == VT_LDOUBLE) { + if (op >= TOK_ULT && op <= TOK_GT) { + /* load on stack second operand */ + load(TREG_ST0, vtop); + save_reg(TREG_RAX); /* eax is used by FP comparison code */ + if (op == TOK_GE || op == TOK_GT) + swapped = !swapped; + else if (op == TOK_EQ || op == TOK_NE) + swapped = 0; + if (swapped) + o(0xc9d9); /* fxch %st(1) */ + if (op == TOK_EQ || op == TOK_NE) + o(0xe9da); /* fucompp */ + else + o(0xd9de); /* fcompp */ + o(0xe0df); /* fnstsw %ax */ + if (op == TOK_EQ) { + o(0x45e480); /* and $0x45, %ah */ + o(0x40fC80); /* cmp $0x40, %ah */ + } else if (op == TOK_NE) { + o(0x45e480); /* and $0x45, %ah */ + o(0x40f480); /* xor $0x40, %ah */ + op = TOK_NE; + } else if (op == TOK_GE || op == TOK_LE) { + o(0x05c4f6); /* test $0x05, %ah */ + op = TOK_EQ; + } else { + o(0x45c4f6); /* test $0x45, %ah */ + op = TOK_EQ; + } + vtop--; + vtop->r = VT_CMP; + vtop->c.i = op; + } else { + /* no memory reference possible for long double operations */ + load(TREG_ST0, vtop); + swapped = !swapped; + + switch(op) { + default: + case '+': + a = 0; + break; + case '-': + a = 4; + if (swapped) + a++; + break; + case '*': + a = 1; + break; + case '/': + a = 6; + if (swapped) + a++; + break; + } + ft = vtop->type.t; + fc = vtop->c.i; + o(0xde); /* fxxxp %st, %st(1) */ + o(0xc1 + (a << 3)); + vtop--; + } + } else { + if (op >= TOK_ULT && op <= TOK_GT) { + /* if saved lvalue, then we must reload it */ + r = vtop->r; + fc = vtop->c.i; + if ((r & VT_VALMASK) == VT_LLOCAL) { + SValue v1; + r = get_reg(RC_INT); + v1.type.t = VT_PTR; + v1.r = VT_LOCAL | VT_LVAL; + v1.c.i = fc; + load(r, &v1); + fc = 0; + } + + if (op == TOK_EQ || op == TOK_NE) { + swapped = 0; + } else { + if (op == TOK_LE || op == TOK_LT) + swapped = !swapped; + if (op == TOK_LE || op == TOK_GE) { + op = 0x93; /* setae */ + } else { + op = 0x97; /* seta */ + } + } + + if (swapped) { + gv(RC_FLOAT); + vswap(); + } + assert(!(vtop[-1].r & VT_LVAL)); + + if ((vtop->type.t & VT_BTYPE) == VT_DOUBLE) + o(0x66); + if (op == TOK_EQ || op == TOK_NE) + o(0x2e0f); /* ucomisd */ + else + o(0x2f0f); /* comisd */ + + if (vtop->r & VT_LVAL) { + gen_modrm(vtop[-1].r, r, vtop->sym, fc); + } else { + o(0xc0 + REG_VALUE(vtop[0].r) + REG_VALUE(vtop[-1].r)*8); + } + + vtop--; + vtop->r = VT_CMP; + vtop->c.i = op | 0x100; + } else { + assert((vtop->type.t & VT_BTYPE) != VT_LDOUBLE); + switch(op) { + default: + case '+': + a = 0; + break; + case '-': + a = 4; + break; + case '*': + a = 1; + break; + case '/': + a = 6; + break; + } + ft = vtop->type.t; + fc = vtop->c.i; + assert((ft & VT_BTYPE) != VT_LDOUBLE); + + r = vtop->r; + /* if saved lvalue, then we must reload it */ + if ((vtop->r & VT_VALMASK) == VT_LLOCAL) { + SValue v1; + r = get_reg(RC_INT); + v1.type.t = VT_PTR; + v1.r = VT_LOCAL | VT_LVAL; + v1.c.i = fc; + load(r, &v1); + fc = 0; + } + + assert(!(vtop[-1].r & VT_LVAL)); + if (swapped) { + assert(vtop->r & VT_LVAL); + gv(RC_FLOAT); + vswap(); + } + + if ((ft & VT_BTYPE) == VT_DOUBLE) { + o(0xf2); + } else { + o(0xf3); + } + o(0x0f); + o(0x58 + a); + + if (vtop->r & VT_LVAL) { + gen_modrm(vtop[-1].r, r, vtop->sym, fc); + } else { + o(0xc0 + REG_VALUE(vtop[0].r) + REG_VALUE(vtop[-1].r)*8); + } + + vtop--; + } + } +} + +/* convert integers to fp 't' type. Must handle 'int', 'unsigned int' + and 'long long' cases. */ +void gen_cvt_itof(int t) +{ + if ((t & VT_BTYPE) == VT_LDOUBLE) { + save_reg(TREG_ST0); + gv(RC_INT); + if ((vtop->type.t & VT_BTYPE) == VT_LLONG) { + /* signed long long to float/double/long double (unsigned case + is handled generically) */ + o(0x50 + (vtop->r & VT_VALMASK)); /* push r */ + o(0x242cdf); /* fildll (%rsp) */ + o(0x08c48348); /* add $8, %rsp */ + } else if ((vtop->type.t & (VT_BTYPE | VT_UNSIGNED)) == + (VT_INT | VT_UNSIGNED)) { + /* unsigned int to float/double/long double */ + o(0x6a); /* push $0 */ + g(0x00); + o(0x50 + (vtop->r & VT_VALMASK)); /* push r */ + o(0x242cdf); /* fildll (%rsp) */ + o(0x10c48348); /* add $16, %rsp */ + } else { + /* int to float/double/long double */ + o(0x50 + (vtop->r & VT_VALMASK)); /* push r */ + o(0x2404db); /* fildl (%rsp) */ + o(0x08c48348); /* add $8, %rsp */ + } + vtop->r = TREG_ST0; + } else { + int r = get_reg(RC_FLOAT); + gv(RC_INT); + o(0xf2 + ((t & VT_BTYPE) == VT_FLOAT?1:0)); + if ((vtop->type.t & (VT_BTYPE | VT_UNSIGNED)) == + (VT_INT | VT_UNSIGNED) || + (vtop->type.t & VT_BTYPE) == VT_LLONG) { + o(0x48); /* REX */ + } + o(0x2a0f); + o(0xc0 + (vtop->r & VT_VALMASK) + REG_VALUE(r)*8); /* cvtsi2sd */ + vtop->r = r; + } +} + +/* convert from one floating point type to another */ +void gen_cvt_ftof(int t) +{ + int ft, bt, tbt; + + ft = vtop->type.t; + bt = ft & VT_BTYPE; + tbt = t & VT_BTYPE; + + if (bt == VT_FLOAT) { + gv(RC_FLOAT); + if (tbt == VT_DOUBLE) { + o(0x140f); /* unpcklps */ + o(0xc0 + REG_VALUE(vtop->r)*9); + o(0x5a0f); /* cvtps2pd */ + o(0xc0 + REG_VALUE(vtop->r)*9); + } else if (tbt == VT_LDOUBLE) { + save_reg(RC_ST0); + /* movss %xmm0,-0x10(%rsp) */ + o(0x110ff3); + o(0x44 + REG_VALUE(vtop->r)*8); + o(0xf024); + o(0xf02444d9); /* flds -0x10(%rsp) */ + vtop->r = TREG_ST0; + } + } else if (bt == VT_DOUBLE) { + gv(RC_FLOAT); + if (tbt == VT_FLOAT) { + o(0x140f66); /* unpcklpd */ + o(0xc0 + REG_VALUE(vtop->r)*9); + o(0x5a0f66); /* cvtpd2ps */ + o(0xc0 + REG_VALUE(vtop->r)*9); + } else if (tbt == VT_LDOUBLE) { + save_reg(RC_ST0); + /* movsd %xmm0,-0x10(%rsp) */ + o(0x110ff2); + o(0x44 + REG_VALUE(vtop->r)*8); + o(0xf024); + o(0xf02444dd); /* fldl -0x10(%rsp) */ + vtop->r = TREG_ST0; + } + } else { + int r; + gv(RC_ST0); + r = get_reg(RC_FLOAT); + if (tbt == VT_DOUBLE) { + o(0xf0245cdd); /* fstpl -0x10(%rsp) */ + /* movsd -0x10(%rsp),%xmm0 */ + o(0x100ff2); + o(0x44 + REG_VALUE(r)*8); + o(0xf024); + vtop->r = r; + } else if (tbt == VT_FLOAT) { + o(0xf0245cd9); /* fstps -0x10(%rsp) */ + /* movss -0x10(%rsp),%xmm0 */ + o(0x100ff3); + o(0x44 + REG_VALUE(r)*8); + o(0xf024); + vtop->r = r; + } + } +} + +/* convert fp to int 't' type */ +void gen_cvt_ftoi(int t) +{ + int ft, bt, size, r; + ft = vtop->type.t; + bt = ft & VT_BTYPE; + if (bt == VT_LDOUBLE) { + gen_cvt_ftof(VT_DOUBLE); + bt = VT_DOUBLE; + } + + gv(RC_FLOAT); + if (t != VT_INT) + size = 8; + else + size = 4; + + r = get_reg(RC_INT); + if (bt == VT_FLOAT) { + o(0xf3); + } else if (bt == VT_DOUBLE) { + o(0xf2); + } else { + assert(0); + } + orex(size == 8, r, 0, 0x2c0f); /* cvttss2si or cvttsd2si */ + o(0xc0 + REG_VALUE(vtop->r) + REG_VALUE(r)*8); + vtop->r = r; +} + +/* computed goto support */ +void ggoto(void) +{ + gcall_or_jmp(1); + vtop--; +} + +/* Save the stack pointer onto the stack and return the location of its address */ +ST_FUNC void gen_vla_sp_save(int addr) { + /* mov %rsp,addr(%rbp)*/ + gen_modrm64(0x89, TREG_RSP, VT_LOCAL, NULL, addr); +} + +/* Restore the SP from a location on the stack */ +ST_FUNC void gen_vla_sp_restore(int addr) { + gen_modrm64(0x8b, TREG_RSP, VT_LOCAL, NULL, addr); +} + +/* Subtract from the stack pointer, and push the resulting value onto the stack */ +ST_FUNC void gen_vla_alloc(CType *type, int align) { +#ifdef TCC_TARGET_PE + /* alloca does more than just adjust %rsp on Windows */ + vpush_global_sym(&func_old_type, TOK_alloca); + vswap(); /* Move alloca ref past allocation size */ + gfunc_call(1); + vset(type, REG_IRET, 0); +#else + int r; + r = gv(RC_INT); /* allocation size */ + /* sub r,%rsp */ + o(0x2b48); + o(0xe0 | REG_VALUE(r)); + /* We align to 16 bytes rather than align */ + /* and ~15, %rsp */ + o(0xf0e48348); + vpop(); +#endif +} + + +/* end of x86-64 code generator */ +/*************************************************************/ +#endif /* ! TARGET_DEFS_ONLY */ +/******************************************************/