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Use uninstrumented spirv-as for corpus prep (#6467) 

To avoid sanitizer errors during corpus prepraration (and also to speed
it up) this change build an uninstrumented version of spirv-as.
This commit is contained in:
Alastair Donaldson 2021-09-17 13:22:09 +01:00 committed by GitHub
parent 708f78b2dc
commit a392b977f8
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1 changed files with 23 additions and 2 deletions
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projects/tint/build.sh
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@ -36,16 +36,37 @@ SPIRV_FUZZERS="tint_spv_reader_fuzzer\
# TODO(afd): add tint_spirv_tools_fuzzer
# The spirv-as tool is used to build seed corpora
ninja ${SPIRV_FUZZERS} spirv-as
ninja ${SPIRV_FUZZERS}
cp ${SPIRV_FUZZERS} $OUT
popd
# An un-instrumented build of spirv-as is used to generate a corpus of SPIR-V binaries.
mkdir -p out/Standard
pushd out/Standard
# Back-up instrumentation options
CFLAGS_SAVE="$CFLAGS"
CXXFLAGS_SAVE="$CXXFLAGS"
unset CFLAGS
unset CXXFLAGS
export AFL_NOOPT=1
cmake -GNinja ../..
ninja spirv-as
# Restore instrumentation options
export CFLAGS="${CFLAGS_SAVE}"
export CXXFLAGS="${CXXFLAGS_SAVE}"
unset AFL_NOOPT
popd
# Generate a corpus of SPIR-V binaries from the SPIR-V assembly files in the
# tint repository.
mkdir $WORK/spirv-corpus
python3 fuzzers/generate_spirv_corpus.py test $WORK/spirv-corpus out/Debug/spirv-as
python3 fuzzers/generate_spirv_corpus.py test $WORK/spirv-corpus out/Standard/spirv-as
mkdir $WORK/spirv-corpus-hashed-names
for f in `ls $WORK/spirv-corpus/*.spv`