| #!/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 "---------------------------------------------------------------" |
| |
| if [ "$SANITIZER" = "dataflow" ] && [ "$FUZZING_ENGINE" != "dataflow" ]; then |
| echo "ERROR: 'dataflow' sanitizer can be used with 'dataflow' engine only." |
| exit 1 |
| fi |
| |
| if [ -z "${SANITIZER_FLAGS-}" ]; then |
| FLAGS_VAR="SANITIZER_FLAGS_${SANITIZER}" |
| export SANITIZER_FLAGS=${!FLAGS_VAR-} |
| fi |
| |
| if [[ $ARCHITECTURE == "i386" ]]; then |
| export CFLAGS="-m32 $CFLAGS" |
| cp -R /usr/i386/lib/* /usr/lib |
| fi |
| if [[ $FUZZING_ENGINE != "none" ]]; then |
| # compile script might override environment, use . to call it. |
| . compile_${FUZZING_ENGINE} |
| fi |
| |
| if [[ $SANITIZER_FLAGS = *sanitize=memory* ]] |
| then |
| # Take all libraries from lib/msan and MSAN_LIBS_PATH |
| # export CXXFLAGS_EXTRA="-L/usr/msan/lib $CXXFLAGS_EXTRA" |
| cp -R /usr/msan/lib/* /usr/lib/ |
| |
| if [[ -z "${MSAN_LIBS_PATH-}" ]]; then |
| echo 'WARNING: Building without MSan instrumented libraries.' |
| else |
| # Copy all static libraries only. Don't include .so files because they can |
| # break non MSan compiled programs. |
| (cd "$MSAN_LIBS_PATH" && find . -name '*.a' -exec cp --parents '{}' / ';') |
| fi |
| fi |
| |
| # Coverage flag overrides. |
| COVERAGE_FLAGS_VAR="COVERAGE_FLAGS_${SANITIZER}" |
| if [[ -n ${!COVERAGE_FLAGS_VAR+x} ]] |
| then |
| export COVERAGE_FLAGS="${!COVERAGE_FLAGS_VAR}" |
| fi |
| |
| # Don't need coverage instrumentation for engine-less builds. |
| if [ $FUZZING_ENGINE = "none" ]; then |
| export COVERAGE_FLAGS= |
| fi |
| |
| export CFLAGS="$CFLAGS $SANITIZER_FLAGS $COVERAGE_FLAGS" |
| export CXXFLAGS="$CFLAGS $CXXFLAGS_EXTRA" |
| |
| echo "CC=$CC" |
| echo "CXX=$CXX" |
| echo "CFLAGS=$CFLAGS" |
| echo "CXXFLAGS=$CXXFLAGS" |
| |
| echo "---------------------------------------------------------------" |
| |
| BUILD_CMD="bash -eux $SRC/build.sh" |
| |
| # We need to preserve source code files for generating a code coverage report. |
| # We need exact files that were compiled, so copy both $SRC and $WORK dirs. |
| COPY_SOURCES_CMD="cp -rL --parents $SRC $WORK /usr/include /usr/local/include $OUT" |
| |
| if [ "${BUILD_UID-0}" -ne "0" ]; then |
| adduser -u $BUILD_UID --disabled-password --gecos '' builder |
| chown -R builder $SRC $OUT $WORK |
| su -c "$BUILD_CMD" builder |
| if [ "$SANITIZER" = "coverage" ]; then |
| # Some directories have broken symlinks (e.g. honggfuzz), ignore the errors. |
| su -c "$COPY_SOURCES_CMD" builder 2>/dev/null || true |
| fi |
| else |
| $BUILD_CMD |
| if [ "$SANITIZER" = "coverage" ]; then |
| # Some directories have broken symlinks (e.g. honggfuzz), ignore the errors. |
| $COPY_SOURCES_CMD 2>/dev/null || true |
| fi |
| fi |
| |
| if [[ "$FUZZING_ENGINE" = "dataflow" ]]; then |
| # Remove seed corpus as it can be huge but is not needed for a dataflow build. |
| rm -f $OUT/*.zip |
| fi |