| # Copyright 2018 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # A fuzzable_proto_library is a proto_library that is the same as any other in |
| # non-fuzzer builds (ie: use_libfuzzer=false). However, in fuzzer builds, the |
| # proto_library is built with the full protobuf runtime and any "optimize_for = |
| # LITE_RUNTIME" options are ignored. This is done because libprotobuf-mutator |
| # needs the full protobuf runtime, but proto_libraries shipped in chrome must |
| # use the optimize for LITE_RUNTIME option which is incompatible with the full |
| # protobuf runtime. tl;dr: A fuzzable_proto_library is a proto_library that can |
| # be fuzzed with libprotobuf-mutator and shipped in Chrome. |
| |
| import("//testing/libfuzzer/fuzzer_test.gni") |
| import("//third_party/protobuf/proto_library.gni") |
| |
| template("fuzzable_proto_library") { |
| if (use_libfuzzer) { |
| proto_library("proto_library_" + target_name) { |
| forward_variables_from(invoker, "*") |
| assert(current_toolchain == host_toolchain) |
| if (!defined(deps)) { |
| deps = [] |
| } |
| deps += |
| [ "//third_party/libprotobuf-mutator:override_lite_runtime_plugin" ] |
| generator_plugin_label = |
| "//third_party/libprotobuf-mutator:override_lite_runtime_plugin" |
| generator_plugin_suffix = ".pb" |
| |
| # The plugin will generate cc, so don't ask for it to be done by protoc. |
| generate_cc = false |
| generate_python = false |
| } |
| |
| # Inspired by proto_library.gni's handling of |
| # component_build_force_source_set. |
| if (defined(component_build_force_source_set) && |
| component_build_force_source_set && is_component_build) { |
| link_target_type = "source_set" |
| } else { |
| link_target_type = "static_library" |
| } |
| |
| # By making target a static_library or source_set, we can add protobuf_full |
| # to public_deps. |
| target(link_target_type, target_name) { |
| sources = [ |
| "//third_party/libprotobuf-mutator/dummy.cc", |
| ] |
| public_deps = [ |
| ":proto_library_" + target_name, |
| "//third_party/libprotobuf-mutator:protobuf_full", |
| ] |
| } |
| } else { |
| # fuzzable_proto_library should behave like a proto_library when |
| # !use_libfuzzer. |
| proto_library(target_name) { |
| forward_variables_from(invoker, "*") |
| } |
| } |
| } |