2021-07-03 13:08:25 +02:00
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#!/bin/sh
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#
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# Creates fuzzer builds of various kinds
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# - oss-fuzz emulated mode (makes sure a simulated invocation by oss-fuzz works)
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# - libFuzzer build (you will need clang)
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# - afl build (you will need afl)
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#
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#
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# Copyright (c) 2019 Paul Dreik
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#
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# For the license information refer to format.h.
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set -e
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me=$(basename $0)
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root=$(readlink -f "$(dirname "$0")/../..")
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echo $me: root=$root
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here=$(pwd)
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CXXFLAGSALL="-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION= -g"
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CMAKEFLAGSALL="$root -GNinja -DCMAKE_BUILD_TYPE=Debug -DFMT_DOC=Off -DFMT_TEST=Off -DFMT_FUZZ=On -DCMAKE_CXX_STANDARD=17"
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2022-03-16 21:36:44 +01:00
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CLANG=clang++-11
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2021-07-03 13:08:25 +02:00
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# For performance analysis of the fuzzers.
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builddir=$here/build-fuzzers-perfanalysis
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mkdir -p $builddir
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cd $builddir
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CXX="ccache g++" CXXFLAGS="$CXXFLAGSALL -g" cmake \
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$CMAKEFLAGSALL \
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-DFMT_FUZZ_LINKMAIN=On \
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-DCMAKE_BUILD_TYPE=Release
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cmake --build $builddir
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# Builds the fuzzers as oss-fuzz does.
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builddir=$here/build-fuzzers-ossfuzz
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mkdir -p $builddir
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cd $builddir
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2022-03-16 21:36:44 +01:00
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CXX=$CLANG \
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2021-07-03 13:08:25 +02:00
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CXXFLAGS="$CXXFLAGSALL -fsanitize=fuzzer-no-link" cmake \
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cmake $CMAKEFLAGSALL \
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-DFMT_FUZZ_LINKMAIN=Off \
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-DFMT_FUZZ_LDFLAGS="-fsanitize=fuzzer"
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cmake --build $builddir
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# Builds fuzzers for local fuzzing with libfuzzer with asan+usan.
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builddir=$here/build-fuzzers-libfuzzer
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mkdir -p $builddir
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cd $builddir
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2022-03-16 21:36:44 +01:00
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CXX=$CLANG \
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2021-07-03 13:08:25 +02:00
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CXXFLAGS="$CXXFLAGSALL -fsanitize=fuzzer-no-link,address,undefined" cmake \
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cmake $CMAKEFLAGSALL \
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-DFMT_FUZZ_LINKMAIN=Off \
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-DFMT_FUZZ_LDFLAGS="-fsanitize=fuzzer"
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cmake --build $builddir
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# Builds a fast fuzzer for making coverage fast.
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builddir=$here/build-fuzzers-fast
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mkdir -p $builddir
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cd $builddir
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2022-03-16 21:36:44 +01:00
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CXX=$CLANG \
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2021-07-03 13:08:25 +02:00
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CXXFLAGS="$CXXFLAGSALL -fsanitize=fuzzer-no-link -O3" cmake \
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cmake $CMAKEFLAGSALL \
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-DFMT_FUZZ_LINKMAIN=Off \
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-DFMT_FUZZ_LDFLAGS="-fsanitize=fuzzer" \
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-DCMAKE_BUILD_TYPE=Release
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cmake --build $builddir
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# Builds fuzzers for local fuzzing with afl.
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builddir=$here/build-fuzzers-afl
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mkdir -p $builddir
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cd $builddir
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CXX="afl-g++" \
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CXXFLAGS="$CXXFLAGSALL -fsanitize=address,undefined" \
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cmake $CMAKEFLAGSALL \
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-DFMT_FUZZ_LINKMAIN=On
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cmake --build $builddir
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echo $me: all good
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