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#!/bin/bash -eux
#
# Copyright 2017 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
# Dont check Coverage in CI as it gets killed
if [[ -n "${OSS_FUZZ_CI-}" && "$SANITIZER" = coverage ]]; then
touch $OUT/exit
exit 0
fi
if [ -n "${OSS_FUZZ_CI-}" ]; then
readonly FUZZERS=(\
clang-fuzzer\
llvm-itanium-demangle-fuzzer\
)
else
readonly FUZZERS=( \
clang-fuzzer \
clang-format-fuzzer \
clang-objc-fuzzer \
clangd-fuzzer \
clang-pseudo-fuzzer \
llvm-itanium-demangle-fuzzer \
llvm-microsoft-demangle-fuzzer \
llvm-dwarfdump-fuzzer \
llvm-special-case-list-fuzzer \
)
fi
# Fuzzers whose inputs are C-family source can use clang-fuzzer-dictionary.
readonly CLANG_DICT_FUZZERS=( \
clang-fuzzer \
clang-format-fuzzer \
clang-objc-fuzzer \
clang-pseudo-fuzzer \
)
case $SANITIZER in
address) LLVM_SANITIZER="Address" ;;
undefined) LLVM_SANITIZER="Undefined" ;;
memory) LLVM_SANITIZER="MemoryWithOrigins" ;;
*) LLVM_SANITIZER="" ;;
esac
case "${LIB_FUZZING_ENGINE}" in
-fsanitize=fuzzer) CMAKE_FUZZING_CONFIG="-DLLVM_USE_SANITIZE_COVERAGE=ON" ;;
*) CMAKE_FUZZING_CONFIG="-DLLVM_LIB_FUZZING_ENGINE=${LIB_FUZZING_ENGINE}" ;;
esac
LLVM=llvm-project/llvm
mkdir build
cd build
cmake -GNinja -DCMAKE_BUILD_TYPE=Release ../$LLVM \
-DLLVM_ENABLE_PROJECTS="clang;libcxx;libcxxabi;compiler-rt;lld;clang-tools-extra" \
-DLLVM_ENABLE_ASSERTIONS=ON \
-DCMAKE_C_COMPILER="${CC}" \
-DCMAKE_CXX_COMPILER="${CXX}" \
-DCMAKE_C_FLAGS="${CFLAGS}" \
-DCMAKE_CXX_FLAGS="${CXXFLAGS}" \
"${CMAKE_FUZZING_CONFIG}" \
-DLLVM_NO_DEAD_STRIP=ON \
-DLLVM_USE_SANITIZER="${LLVM_SANITIZER}" \
-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=WebAssembly \
-DCOMPILER_RT_INCLUDE_TESTS=OFF
for fuzzer in "${FUZZERS[@]}"; do
ninja $fuzzer
cp bin/$fuzzer $OUT
done
ninja clang-fuzzer-dictionary
for fuzzer in "${CLANG_DICT_FUZZERS[@]}"; do
bin/clang-fuzzer-dictionary > $OUT/$fuzzer.dict
done
zip -j "${OUT}/clang-objc-fuzzer_seed_corpus.zip" $SRC/$LLVM/../clang/tools/clang-fuzzer/corpus_examples/objc/*
zip -j "${OUT}/clangd-fuzzer_seed_corpus.zip" $SRC/$LLVM/../clang-tools-extra/clangd/test/*
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