#!/bin/bash -eu
# Copyright 2016 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.
#
################################################################################

echo -n "Compiling libFuzzer to $LIB_FUZZING_ENGINE... "
mkdir -p $WORK/libfuzzer
pushd $WORK/libfuzzer > /dev/null

# Use -fPIC to allow preloading (LD_PRELOAD).
$CXX $CXXFLAGS -std=c++11 -O2 -fPIC $SANITIZER_FLAGS -fno-sanitize=vptr \
    -c $SRC/libfuzzer/*.cpp -I$SRC/libfuzzer
ar r $LIB_FUZZING_ENGINE_DEPRECATED $WORK/libfuzzer/*.o
popd > /dev/null
rm -rf $WORK/libfuzzer
# Override variable as libFuzzer builds do not link directly against an
# engine library, but use -fsanitize=fuzzer to instruct clang to do so.
export LIB_FUZZING_ENGINE="-fsanitize=fuzzer"
echo " done."