|  | # Copyright 2022 The Dawn & Tint Authors | 
|  | # | 
|  | # Redistribution and use in source and binary forms, with or without | 
|  | # modification, are permitted provided that the following conditions are met: | 
|  | # | 
|  | # 1. Redistributions of source code must retain the above copyright notice, this | 
|  | #    list of conditions and the following disclaimer. | 
|  | # | 
|  | # 2. Redistributions in binary form must reproduce the above copyright notice, | 
|  | #    this list of conditions and the following disclaimer in the documentation | 
|  | #    and/or other materials provided with the distribution. | 
|  | # | 
|  | # 3. Neither the name of the copyright holder nor the names of its | 
|  | #    contributors may be used to endorse or promote products derived from | 
|  | #    this software without specific prior written permission. | 
|  | # | 
|  | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | 
|  | # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 
|  | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 
|  | # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | 
|  | # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | 
|  | # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | 
|  | # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | 
|  | # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | 
|  | # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 
|  | # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 
|  |  | 
|  | import("//build_overrides/build.gni") | 
|  | import("../../../scripts/tint_overrides_with_defaults.gni") | 
|  |  | 
|  | # Fuzzers - Libfuzzer based fuzzing targets for Chromium | 
|  | # To run the fuzzers outside of Chromium, use the CMake based builds. | 
|  |  | 
|  | if (tint_has_fuzzers) { | 
|  | import("//testing/libfuzzer/fuzzer_test.gni") | 
|  | import("../../../scripts/dawn_overrides_with_defaults.gni") | 
|  |  | 
|  | fuzzer_corpus_wgsl_dir = "${target_gen_dir}/fuzzer_corpus_wgsl" | 
|  | fuzzer_corpus_wgsl_stamp = "${fuzzer_corpus_wgsl_dir}.stamp" | 
|  | action("tint_generate_wgsl_corpus") { | 
|  | script = "generate_wgsl_corpus.py" | 
|  | sources = [ "generate_wgsl_corpus.py" ] | 
|  | args = [ | 
|  | "--stamp=" + rebase_path(fuzzer_corpus_wgsl_stamp, root_build_dir), | 
|  | rebase_path("${tint_root_dir}/test", root_build_dir), | 
|  | rebase_path(fuzzer_corpus_wgsl_dir, root_build_dir), | 
|  | ] | 
|  | outputs = [ fuzzer_corpus_wgsl_stamp ] | 
|  | } | 
|  |  | 
|  | tint_fuzzer_common_libfuzzer_options = [ | 
|  | "only_ascii=1", | 
|  | "max_len=10000", | 
|  | ] | 
|  |  | 
|  | if (build_with_chromium) { | 
|  | tint_ast_fuzzer_common_libfuzzer_options = | 
|  | tint_fuzzer_common_libfuzzer_options + [ | 
|  | "cross_over=0", | 
|  | "mutate_depth=1", | 
|  | "tint_enable_all_mutations=false", | 
|  | "tint_mutation_batch_size=5", | 
|  | ] | 
|  | } | 
|  |  | 
|  | tint_regex_fuzzer_common_libfuzzer_options = | 
|  | tint_fuzzer_common_libfuzzer_options + [ | 
|  | "cross_over=0", | 
|  | "mutate_depth=1", | 
|  | ] | 
|  |  | 
|  | # fuzzer_test doesn't have configs members, so need to define them in an empty | 
|  | # source_set. | 
|  |  | 
|  | source_set("tint_fuzzer_common_src") { | 
|  | public_configs = [ | 
|  | "${tint_src_dir}:tint_config", | 
|  | "${tint_src_dir}:tint_common_config", | 
|  | ] | 
|  |  | 
|  | public_deps = [ | 
|  | "${tint_spirv_tools_dir}/:spvtools_val", | 
|  | "${tint_src_dir}/api", | 
|  | "${tint_src_dir}/api/common", | 
|  | "${tint_src_dir}/lang/core/type", | 
|  | "${tint_src_dir}/lang/glsl/writer", | 
|  | "${tint_src_dir}/lang/hlsl/writer", | 
|  | "${tint_src_dir}/lang/msl/writer", | 
|  | "${tint_src_dir}/lang/msl/writer/helpers", | 
|  | "${tint_src_dir}/lang/spirv/writer", | 
|  | "${tint_src_dir}/lang/spirv/writer/helpers", | 
|  | "${tint_src_dir}/lang/wgsl/ast", | 
|  | "${tint_src_dir}/lang/wgsl/ast/transform", | 
|  | "${tint_src_dir}/lang/wgsl/helpers", | 
|  | "${tint_src_dir}/lang/wgsl/inspector", | 
|  | "${tint_src_dir}/lang/wgsl/program", | 
|  | "${tint_src_dir}/lang/wgsl/reader", | 
|  | "${tint_src_dir}/lang/wgsl/resolver", | 
|  | "${tint_src_dir}/lang/wgsl/sem", | 
|  | "${tint_src_dir}/lang/wgsl/writer", | 
|  | "${tint_src_dir}/utils/diagnostic", | 
|  | "${tint_src_dir}/utils/math", | 
|  | ] | 
|  |  | 
|  | sources = [ | 
|  | "data_builder.h", | 
|  | "mersenne_twister_engine.cc", | 
|  | "mersenne_twister_engine.h", | 
|  | "random_generator.cc", | 
|  | "random_generator.h", | 
|  | "random_generator_engine.cc", | 
|  | "random_generator_engine.h", | 
|  | "shuffle_transform.cc", | 
|  | "shuffle_transform.h", | 
|  | "tint_common_fuzzer.cc", | 
|  | "tint_common_fuzzer.h", | 
|  | "tint_reader_writer_fuzzer.h", | 
|  | "transform_builder.h", | 
|  | ] | 
|  |  | 
|  | if (is_mac) { | 
|  | sources += [ "//testing/libfuzzer/libfuzzer_exports.h" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | source_set("tint_fuzzer_common_with_init_src") { | 
|  | public_deps = [ ":tint_fuzzer_common_src" ] | 
|  |  | 
|  | sources = [ | 
|  | "cli.cc", | 
|  | "cli.h", | 
|  | "fuzzer_init.cc", | 
|  | "fuzzer_init.h", | 
|  | ] | 
|  | } | 
|  |  | 
|  | if (tint_build_wgsl_reader && tint_build_wgsl_writer) { | 
|  | if (build_with_chromium) { | 
|  | fuzzer_test("tint_ast_wgsl_writer_fuzzer") { | 
|  | sources = [ "tint_ast_fuzzer/tint_ast_wgsl_writer_fuzzer.cc" ] | 
|  | deps = [ "tint_ast_fuzzer:tint_ast_fuzzer" ] | 
|  | libfuzzer_options = tint_ast_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_regex_wgsl_writer_fuzzer") { | 
|  | sources = [ "tint_regex_fuzzer/tint_regex_wgsl_writer_fuzzer.cc" ] | 
|  | deps = [ "tint_regex_fuzzer:tint_regex_fuzzer" ] | 
|  | libfuzzer_options = tint_regex_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | if (tint_build_wgsl_reader && tint_build_spv_writer) { | 
|  | fuzzer_test("tint_all_transforms_fuzzer") { | 
|  | sources = [ "tint_all_transforms_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | if (build_with_chromium) { | 
|  | fuzzer_test("tint_ast_spv_writer_fuzzer") { | 
|  | sources = [ "tint_ast_fuzzer/tint_ast_spv_writer_fuzzer.cc" ] | 
|  | deps = [ "tint_ast_fuzzer:tint_ast_fuzzer" ] | 
|  | libfuzzer_options = tint_ast_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_binding_remapper_fuzzer") { | 
|  | sources = [ "tint_binding_remapper_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | # Disable this fuzzer on windows + ASAN. See crbug.com/1357188. | 
|  | if (!(is_win && is_asan)) { | 
|  | fuzzer_test("tint_concurrency_fuzzer") { | 
|  | sources = [ "tint_concurrency_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_first_index_offset_fuzzer") { | 
|  | sources = [ "tint_first_index_offset_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_regex_spv_writer_fuzzer") { | 
|  | sources = [ "tint_regex_fuzzer/tint_regex_spv_writer_fuzzer.cc" ] | 
|  | deps = [ "tint_regex_fuzzer:tint_regex_fuzzer" ] | 
|  | libfuzzer_options = tint_regex_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_renamer_fuzzer") { | 
|  | sources = [ "tint_renamer_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_robustness_fuzzer") { | 
|  | sources = [ "tint_robustness_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_single_entry_point_fuzzer") { | 
|  | sources = [ "tint_single_entry_point_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_vertex_pulling_fuzzer") { | 
|  | sources = [ "tint_vertex_pulling_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_wgsl_reader_spv_writer_fuzzer") { | 
|  | sources = [ "tint_wgsl_reader_spv_writer_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | if (tint_build_wgsl_reader && tint_build_hlsl_writer) { | 
|  | if (build_with_chromium) { | 
|  | fuzzer_test("tint_ast_hlsl_writer_fuzzer") { | 
|  | sources = [ "tint_ast_fuzzer/tint_ast_hlsl_writer_fuzzer.cc" ] | 
|  | deps = [ "tint_ast_fuzzer:tint_ast_fuzzer" ] | 
|  | libfuzzer_options = tint_ast_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_regex_hlsl_writer_fuzzer") { | 
|  | sources = [ "tint_regex_fuzzer/tint_regex_hlsl_writer_fuzzer.cc" ] | 
|  | deps = [ "tint_regex_fuzzer:tint_regex_fuzzer" ] | 
|  | libfuzzer_options = tint_regex_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_wgsl_reader_hlsl_writer_fuzzer") { | 
|  | sources = [ "tint_wgsl_reader_hlsl_writer_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | if (tint_build_wgsl_reader && tint_build_msl_writer) { | 
|  | if (build_with_chromium) { | 
|  | fuzzer_test("tint_ast_msl_writer_fuzzer") { | 
|  | sources = [ "tint_ast_fuzzer/tint_ast_msl_writer_fuzzer.cc" ] | 
|  | deps = [ "tint_ast_fuzzer:tint_ast_fuzzer" ] | 
|  | libfuzzer_options = tint_ast_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_regex_msl_writer_fuzzer") { | 
|  | sources = [ "tint_regex_fuzzer/tint_regex_msl_writer_fuzzer.cc" ] | 
|  | deps = [ "tint_regex_fuzzer:tint_regex_fuzzer" ] | 
|  | libfuzzer_options = tint_regex_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  |  | 
|  | fuzzer_test("tint_wgsl_reader_msl_writer_fuzzer") { | 
|  | sources = [ "tint_wgsl_reader_msl_writer_fuzzer.cc" ] | 
|  | deps = [ ":tint_fuzzer_common_with_init_src" ] | 
|  | dict = "dictionary.txt" | 
|  | libfuzzer_options = tint_fuzzer_common_libfuzzer_options | 
|  | seed_corpus = fuzzer_corpus_wgsl_dir | 
|  | seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] | 
|  | } | 
|  | } | 
|  |  | 
|  | group("fuzzers") { | 
|  | testonly = true | 
|  | deps = [] | 
|  |  | 
|  | if (tint_build_wgsl_reader && tint_build_wgsl_writer) { | 
|  | deps += [ ":tint_regex_wgsl_writer_fuzzer" ] | 
|  | if (build_with_chromium) { | 
|  | deps += [ ":tint_ast_wgsl_writer_fuzzer" ] | 
|  | } | 
|  | } | 
|  | if (tint_build_wgsl_reader && tint_build_spv_writer) { | 
|  | deps += [ | 
|  | ":tint_all_transforms_fuzzer", | 
|  | ":tint_binding_remapper_fuzzer", | 
|  | ":tint_first_index_offset_fuzzer", | 
|  | ":tint_regex_spv_writer_fuzzer", | 
|  | ":tint_renamer_fuzzer", | 
|  | ":tint_robustness_fuzzer", | 
|  | ":tint_single_entry_point_fuzzer", | 
|  | ":tint_vertex_pulling_fuzzer", | 
|  | ":tint_wgsl_reader_spv_writer_fuzzer", | 
|  | ] | 
|  | if (build_with_chromium) { | 
|  | deps += [ ":tint_ast_spv_writer_fuzzer" ] | 
|  | } | 
|  | } | 
|  | if (tint_build_wgsl_reader && tint_build_hlsl_writer) { | 
|  | deps += [ | 
|  | ":tint_regex_hlsl_writer_fuzzer", | 
|  | ":tint_wgsl_reader_hlsl_writer_fuzzer", | 
|  | ] | 
|  | if (build_with_chromium) { | 
|  | deps += [ ":tint_ast_hlsl_writer_fuzzer" ] | 
|  | } | 
|  | } | 
|  | if (tint_build_wgsl_reader && tint_build_msl_writer) { | 
|  | deps += [ | 
|  | ":tint_regex_msl_writer_fuzzer", | 
|  | ":tint_wgsl_reader_msl_writer_fuzzer", | 
|  | ] | 
|  | if (build_with_chromium) { | 
|  | deps += [ ":tint_ast_msl_writer_fuzzer" ] | 
|  | } | 
|  | } | 
|  | } | 
|  | } else { | 
|  | group("fuzzers") { | 
|  | } | 
|  | } |