1#!/bin/bash -eu 2# Copyright 2018 Google Inc. 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15# 16################################################################################ 17 18# Build libvpx 19build_dir=$WORK/build 20rm -rf ${build_dir} 21mkdir -p ${build_dir} 22pushd ${build_dir} 23 24# oss-fuzz has 2 GB total memory allocation limit. So, we limit per-allocation 25# limit in libvpx to 1 GB to avoid OOM errors. A smaller per-allocation is 26# needed for MemorySanitizer (see bug oss-fuzz:9497 and bug oss-fuzz:9499). 27if [[ $CFLAGS = *sanitize=memory* ]]; then 28 extra_c_flags='-DVPX_MAX_ALLOCABLE_MEMORY=536870912' 29else 30 extra_c_flags='-DVPX_MAX_ALLOCABLE_MEMORY=1073741824' 31fi 32 33LDFLAGS="$CXXFLAGS" LD=$CXX $SRC/libvpx/configure \ 34 --enable-vp9-highbitdepth \ 35 --disable-unit-tests \ 36 --disable-examples \ 37 --size-limit=12288x12288 \ 38 --extra-cflags="${extra_c_flags}" \ 39 --disable-webm-io \ 40 --enable-debug \ 41 --disable-vp8-encoder \ 42 --disable-vp9-encoder 43make -j$(nproc) all 44popd 45 46# build fuzzers 47fuzzer_src_name=vpx_dec_fuzzer 48fuzzer_decoders=( 'vp9' 'vp8' ) 49for decoder in "${fuzzer_decoders[@]}"; do 50 fuzzer_name=${fuzzer_src_name}"_"${decoder} 51 52 $CXX $CXXFLAGS -std=c++11 \ 53 -DDECODER=${decoder} \ 54 -I$SRC/libvpx \ 55 -I${build_dir} \ 56 -Wl,--start-group \ 57 $LIB_FUZZING_ENGINE \ 58 $SRC/libvpx/examples/${fuzzer_src_name}.cc -o $OUT/${fuzzer_name} \ 59 ${build_dir}/libvpx.a \ 60 -Wl,--end-group 61 cp $SRC/vpx_fuzzer_seed_corpus.zip $OUT/${fuzzer_name}_seed_corpus.zip 62 cp $SRC/vpx_dec_fuzzer.dict $OUT/${fuzzer_name}.dict 63done 64