144 lines
5.5 KiB
Bash
Executable File
144 lines
5.5 KiB
Bash
Executable File
#!/bin/bash -eu
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# Copyright 2020 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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## Copied from envoy
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export CFLAGS="$CFLAGS"
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export CXXFLAGS="$CXXFLAGS"
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FUZZER_DICTIONARIES="\
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"
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# Copy $CFLAGS and $CXXFLAGS into Bazel command-line flags, for both
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# compilation and linking.
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#
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# Some flags, such as `-stdlib=libc++`, generate warnings if used on a C source
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# file. Since the build runs with `-Werror` this will cause it to break, so we
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# use `--conlyopt` and `--cxxopt` instead of `--copt`.
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#
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declare -r EXTRA_BAZEL_FLAGS="$(
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for f in ${CFLAGS}; do
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echo "--conlyopt=${f}" "--linkopt=${f}"
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done
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for f in ${CXXFLAGS}; do
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echo "--cxxopt=${f}" "--linkopt=${f}"
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done
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if [ "$SANITIZER" = "undefined" ]
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then
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# Bazel uses clang to link binary, which does not link clang_rt ubsan library for C++ automatically.
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# See issue: https://github.com/bazelbuild/bazel/issues/8777
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echo "--linkopt=\"$(find $(llvm-config --libdir) -name libclang_rt.ubsan_standalone_cxx-x86_64.a | head -1)\""
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elif [ "$SANITIZER" = "address" ]
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then
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echo "--copt -D__SANITIZE_ADDRESS__" "--copt -DADDRESS_SANITIZER=1"
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fi
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)"
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declare BAZEL_BUILD_TARGETS=""
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declare BAZEL_CORPUS_TARGETS=""
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declare FILTERED_FUZZER_TARGETS=""
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for t in $(bazel query 'src/...' --output label | grep '_fuzz_test$')
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do
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declare TAGGED=$(bazel query "attr('tags', 'no_fuzz', ${t})")
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if [ -z "${TAGGED}" ]
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then
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BASE_PATH=${t//://}
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BASE_PATH=${BASE_PATH#"//"}
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FILTERED_FUZZER_TARGETS+="${BASE_PATH} "
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BAZEL_BUILD_TARGETS+="${t}_driverless "
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BAZEL_CORPUS_TARGETS+="${t}_corpus_tar "
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fi
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done
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# Build driverless libraries.
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# Benchmark about 3 GB per CPU (10 threads for 28.8 GB RAM)
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# TODO(nareddyt): Remove deprecation warnings when Envoy and deps moves to C++17
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bazel build --verbose_failures --dynamic_mode=off --spawn_strategy=sandboxed \
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--local_cpu_resources=HOST_CPUS*0.32 \
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--genrule_strategy=standalone --strip=never \
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--copt=-fno-sanitize=vptr --linkopt=-fno-sanitize=vptr \
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--define tcmalloc=disabled --define signal_trace=disabled \
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--define ENVOY_CONFIG_ASAN=1 \
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--define force_libcpp=enabled --build_tag_filters=-no_asan \
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--linkopt=-lc++ --linkopt=-pthread ${EXTRA_BAZEL_FLAGS} \
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${BAZEL_BUILD_TARGETS[*]} ${BAZEL_CORPUS_TARGETS[*]}
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# Profiling with coverage requires that we resolve+copy all Bazel symlinks and
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# also remap everything under proc/self/cwd to correspond to Bazel build paths.
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if [ "$SANITIZER" = "coverage" ]
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then
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# The build invoker looks for sources in $SRC, but it turns out that we need
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# to not be buried under src/, paths are expected at out/proc/self/cwd by
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# the profiler.
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declare -r REMAP_PATH="${OUT}/proc/self/cwd"
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mkdir -p "${REMAP_PATH}"
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rsync -av "${SRC}"/esp-v2/src "${REMAP_PATH}"
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# Remove filesystem loop manually.
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rm -rf "${SRC}"/esp-v2/bazel-esp-v2/external/esp-v2
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# Clean up symlinks with a missing referrant.
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find "${SRC}"/esp-v2/bazel-esp-v2/external -follow -type l -ls -delete || echo "Symlink cleanup soft fail"
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rsync -avLk "${SRC}"/esp-v2/bazel-esp-v2/external "${REMAP_PATH}"
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# For .h, and some generated artifacts, we need bazel-out/. Need to heavily
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# filter out the build objects from bazel-out/. Also need to resolve symlinks,
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# since they don't make sense outside the build container.
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declare -r RSYNC_FILTER_ARGS=("--include" "*.h" "--include" "*.cc" "--include" \
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"*.hpp" "--include" "*.cpp" "--include" "*.c" "--include" "*/" "--exclude" "*")
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rsync -avLk "${RSYNC_FILTER_ARGS[@]}" "${SRC}"/esp-v2/bazel-out "${REMAP_PATH}"
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rsync -avLkR "${RSYNC_FILTER_ARGS[@]}" "${HOME}" "${OUT}"
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# Some low-level libraries are built located /tmp.
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# But ESPv2 engineeers don't really look at them.
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# rsync -avLkR "${RSYNC_FILTER_ARGS[@]}" /tmp "${OUT}"
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fi
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# Copy out test driverless binaries from bazel-bin/.
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for t in ${FILTERED_FUZZER_TARGETS}
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do
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TARGET_BASE="$(expr "$t" : '.*/\(.*\)_fuzz_test')"
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TARGET_DRIVERLESS=bazel-bin/"${t}"_driverless
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echo "Copying fuzzer $t"
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cp "${TARGET_DRIVERLESS}" "${OUT}"/"${TARGET_BASE}"_fuzz_test
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done
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# Zip up related test corpuses.
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# TODO(nareddyt): just use the .tar directly when
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# https://github.com/google/oss-fuzz/issues/1918 is fixed.
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CORPUS_UNTAR_PATH="${PWD}"/_tmp_corpus
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for t in ${FILTERED_FUZZER_TARGETS}
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do
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echo "Extracting and zipping fuzzer $t corpus"
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rm -rf "${CORPUS_UNTAR_PATH}"
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mkdir -p "${CORPUS_UNTAR_PATH}"
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tar -C "${CORPUS_UNTAR_PATH}" -xvf bazel-bin/"${t}"_corpus_tar.tar
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TARGET_BASE="$(expr "$t" : '.*/\(.*\)_fuzz_test')"
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# There may be *.dict files in this folder that need to be moved into the OUT dir.
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find "${CORPUS_UNTAR_PATH}" -type f -name *.dict -exec mv -n {} "${OUT}"/ \;
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zip "${OUT}/${TARGET_BASE}"_fuzz_test_seed_corpus.zip \
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"${CORPUS_UNTAR_PATH}"/*
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done
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rm -rf "${CORPUS_UNTAR_PATH}"
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# Copy dictionaries and options files to $OUT/
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for d in $FUZZER_DICTIONARIES; do
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cp "$d" "${OUT}"/
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done
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# Cleanup bazel- symlinks to avoid oss-fuzz trying to copy out of the build
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# cache.
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rm -f bazel-*
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