tests/test-fuzz-targets.t
author Pierre-Yves David <pierre-yves.david@octobus.net>
Mon, 15 May 2023 08:59:38 +0200
changeset 50483 60e613f6a229
parent 47063 1d075b857c90
permissions -rw-r--r--
store: add a `target_id` attribute on RevlogStoreEntry This hold the "target" (file, directory, etc) of a revlog. Having this available will help a lot of code to avoid direct file path access.
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#require test-repo py3
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  $ cd $TESTDIR/../contrib/fuzz
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  $ OUT=$TESTTMP ; export OUT
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which(1) could exit nonzero, but that's fine because we'll still end
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up without a valid executable, so we don't need to check $? here.
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  $ if which gmake >/dev/null 2>&1; then
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  >     MAKE=gmake
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  > else
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  >     MAKE=make
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  > fi
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  $ havefuzz() {
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  >     cat > $TESTTMP/dummy.cc <<EOF
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  > #include <stdlib.h>
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  > #include <stdint.h>
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  > int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
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  > int main(int argc, char **argv) {
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  >     const char data[] = "asdf";
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  >     return LLVMFuzzerTestOneInput((const uint8_t *)data, 4);
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  > }
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  > EOF
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  >     $CXX $TESTTMP/dummy.cc -o $TESTTMP/dummy \
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  >        -fsanitize=fuzzer-no-link,address || return 1
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  > }
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Try to find a python3-config that's next to our sys.executable. If
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that doesn't work, fall back to looking for a global python3-config
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and hope that works out for the best.
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  $ PYBIN=`"$PYTHON" -c 'import sys, os; print(os.path.dirname(sys.executable))'`
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  $ if [ -x "$PYBIN/python3-config" ] ; then
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  >   PYTHON_CONFIG="$PYBIN/python3-config"
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  > else
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  >   PYTHON_CONFIG="`which python3-config`"
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  > fi
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#if clang-libfuzzer
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  $ CXX=clang++ havefuzz || exit 80
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  $ $MAKE -s clean all PYTHON_CONFIG="$PYTHON_CONFIG"
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#endif
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#if no-clang-libfuzzer clang-6.0
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  $ CXX=clang++-6.0 havefuzz || exit 80
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  $ $MAKE -s clean all CC=clang-6.0 CXX=clang++-6.0 PYTHON_CONFIG="$PYTHON_CONFIG"
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#endif
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#if no-clang-libfuzzer no-clang-6.0
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  $ exit 80
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#endif
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  $ cd $TESTTMP
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Run each fuzzer using dummy.cc as a fake input, to make sure it runs
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at all. In the future we should instead unpack the corpus for each
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fuzzer and use that instead.
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  $ for fuzzer in `ls *_fuzzer | sort` ; do
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  >   echo run $fuzzer...
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  >   ./$fuzzer dummy.cc > /dev/null 2>&1 
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  > done
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  run bdiff_fuzzer...
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  run dirs_fuzzer...
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  run dirstate_fuzzer...
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  run fm1readmarkers_fuzzer...
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  run fncache_fuzzer...
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  run jsonescapeu8fast_fuzzer...
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  run manifest_fuzzer...
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  run mpatch_fuzzer...
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  run revlog_fuzzer...
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  run xdiff_fuzzer...
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Clean up.
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  $ cd $TESTDIR/../contrib/fuzz
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  $ $MAKE -s clean