| # Copyright 2020 The Pigweed Authors |
| # |
| # 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 |
| # |
| # https://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. |
| |
| import("//build_overrides/pigweed.gni") |
| |
| import("$dir_pw_build/target_types.gni") |
| import("$dir_pw_docgen/docs.gni") |
| import("$dir_pw_fuzzer/fuzzer.gni") |
| import("$dir_pw_fuzzer/oss_fuzz.gni") |
| |
| config("public_include_path") { |
| include_dirs = [ "public" ] |
| visibility = [ ":*" ] |
| } |
| |
| # This is added automatically by the `pw_fuzzer` template. |
| config("fuzzing") { |
| common_flags = [ "-fsanitize=fuzzer" ] |
| cflags = common_flags |
| ldflags = common_flags |
| } |
| |
| # OSS-Fuzz needs to be able to specify its own compilers and add flags. |
| config("oss_fuzz") { |
| # OSS-Fuzz doesn't always link with -fsanitize=fuzzer, sometimes it uses |
| #-fsanitize=fuzzer-no-link and provides the fuzzing engine explicitly to be |
| # passed to the linker. |
| ldflags = [ getenv("LIB_FUZZING_ENGINE") ] |
| } |
| |
| config("oss_fuzz_extra") { |
| cflags_c = oss_fuzz_extra_cflags_c |
| cflags_cc = oss_fuzz_extra_cflags_cc |
| ldflags = oss_fuzz_extra_ldflags |
| } |
| |
| pw_source_set("pw_fuzzer") { |
| public_configs = [ ":public_include_path" ] |
| public = [ |
| "public/pw_fuzzer/asan_interface.h", |
| "public/pw_fuzzer/fuzzed_data_provider.h", |
| ] |
| public_deps = [ "$dir_pw_log" ] |
| } |
| |
| pw_source_set("run_as_unit_test") { |
| configs = [ ":public_include_path" ] |
| sources = [ "pw_fuzzer_disabled.cc" ] |
| deps = [ |
| dir_pw_log, |
| dir_pw_unit_test, |
| ] |
| } |
| |
| # See https://llvm.org/docs/LibFuzzer.html#fuzzer-friendly-build-mode |
| config("fuzzing_build_mode_unsafe_for_production") { |
| defines = [ "FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION" ] |
| } |
| |
| config("fuzzing_verbose_logging") { |
| defines = [ "FUZZING_VERBOSE_LOGGING" ] |
| } |
| |
| pw_doc_group("docs") { |
| inputs = [ "doc_resources/pw_fuzzer_coverage_guided.png" ] |
| sources = [ "docs.rst" ] |
| } |
| |
| # Sample fuzzer |
| pw_fuzzer("toy_fuzzer") { |
| sources = [ "examples/toy_fuzzer.cc" ] |
| deps = [ |
| dir_pw_result, |
| dir_pw_span, |
| dir_pw_string, |
| ] |
| } |
| |
| pw_test_group("tests") { |
| tests = [ ":toy_fuzzer" ] |
| } |