tree-sitter/script/build-fuzzers
2020-05-12 16:28:26 -07:00

72 lines
2.1 KiB
Bash
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=${LINK:-clang++}
default_fuzz_flags="-fsanitize=fuzzer,address,undefined"
CFLAGS=${CFLAGS:-"$default_fuzz_flags"}
CXXFLAGS=${CXXFLAGS:-"$default_fuzz_flags"}
export CFLAGS
make
if [ -z "$@" ]; 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+=("${lang_dir}/src/parser.o")
highlights_filename="${lang_dir}/queries/highlights.scm"
if [ -e "${highlights_filename}" ]; then
ts_lang_query_filename="${lang}.scm"
cp "${highlights_filename}" "out/${ts_lang_query_filename}"
else
ts_lang_query_filename=""
fi
# FIXME: We should extract the grammar name from grammar.js. Use the name of
# the directory instead. Also, the grammar name needs to be a valid C
# identifier so replace any '-' characters
ts_lang="tree_sitter_$(echo $lang | tr -- - _)"
$CXX $CXXFLAGS -std=c++11 -I lib/include -D TS_LANG="$ts_lang" -D TS_LANG_QUERY_FILENAME="\"${ts_lang_query_filename}\"" \
"test/fuzz/fuzzer.cc" "${objects[@]}" \
libtree-sitter.a "$LIB_FUZZER_PATH" \
-o "out/${lang}_fuzzer"
python test/fuzz/gen-dict.py "${lang_dir}/src/grammar.json" > "out/$lang.dict"
done