tree-sitter/script/build-fuzzers
2017-09-14 11:04:19 -04:00

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Executable file

#!/bin/bash
set -e
if [[ "$(uname -s)" != Linux ]]; then
echo "Fuzzing is only supported on Linux"
exit 1
fi
if [[ -z "$LIB_FUZZER_PATH" ]]; then
echo "LIB_FUZZER_PATH not set"
exit 1
fi
CC=${CC:-clang}
CXX=${CXX:-clang++}
LINK=${LINK:-clang++}
default_fuzz_flags="-fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard"
CFLAGS=${CFLAGS:-"$default_fuzz_flags"}
CXXFLAGS=${CXXFLAGS:-"$default_fuzz_flags"}
CC=$CC CXX=$CXX LINK=$LINK CFLAGS=$CFLAGS CXXFLAGS=$CXXFLAGS ./script/configure
export BUILDTYPE=Fuzz
make runtime
if [ -z "$@" ]; then
languages=$(ls test/fixtures/grammars)
else
languages="$@"
fi
for lang in ${languages[@]}; do
echo "Building $lang fuzzer..."
lang_dir="test/fixtures/grammars/$lang"
# The following assumes each language is implemented as src/parser.c plus an
# optional scanner in src/scanner.{c,cc}
objects=()
lang_scanner="${lang_dir}/src/scanner"
if [ -e "${lang_scanner}.cc" ]; then
$CXX $CXXFLAGS -g -O1 "-I${lang_dir}/src" -c "${lang_scanner}.cc" -o "${lang_scanner}.o"
objects+=("${lang_scanner}.o")
elif [ -e "${lang_scanner}.c" ]; then
$CC $CFLAGS -std=c99 -g -O1 "-I${lang_dir}/src" -c "${lang_scanner}.c" -o "${lang_scanner}.o"
objects+=("${lang_scanner}.o")
fi
# Compiling with -O0 speeds up the build dramatically
$CC $CFLAGS -g -O0 "-I${lang_dir}/src" "${lang_dir}/src/parser.c" -c -o "${lang_dir}/src/parser.o"
objects+=("${lang_dir}/src/parser.o")
$CXX $CXXFLAGS -std=c++11 -Iinclude -D TSLANG="tree_sitter_$lang" \
"test/fuzz/fuzzer.cc" "${objects[@]}" \
out/Fuzz/obj.target/libruntime.a "$LIB_FUZZER_PATH" \
-o "out/${lang}_fuzzer"
python test/fuzz/gen-dict.py "${lang_dir}/src/grammar.json" > "out/$lang.dict"
done