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# Copyright 2017 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/config/sanitizers/sanitizers.gni")
import("//testing/libfuzzer/fuzzer_test.gni")
import("//third_party/libprotobuf-mutator/fuzzable_proto_library.gni")
config("public_config") {
include_dirs = [ "src/" ]
}
config("private_config") {
cflags = [ "-Wno-shadow" ]
}
source_set("libprotobuf-mutator") {
testonly = true
# Remove *San and coverage for a performance boost.
configs -= not_fuzzed_remove_configs
configs += [
"//build/config/sanitizers:not_fuzzed",
":private_config",
]
public_configs = [ ":public_config" ]
sources = [
"src/src/binary_format.cc",
"src/src/libfuzzer/libfuzzer_macro.cc",
"src/src/libfuzzer/libfuzzer_mutator.cc",
"src/src/mutator.cc",
"src/src/text_format.cc",
"src/src/utf8_fix.cc",
]
# Allow users of LPM to use protobuf reflection and other features from
# protobuf_full.
public_deps = [ "//third_party/protobuf:protobuf_full" ]
# Let ClusterFuzz builders know to not build targets that depend on
# libprotobuf-mutator for AFL or Chrome OS.
if (use_afl || current_toolchain == "//build/toolchain/cros:target") {
all_dependent_configs = [ "//testing/libfuzzer:no_clusterfuzz" ]
}
}
# The CQ will try building this target without "use_libfuzzer" if it is defined.
# That will cause the build to fail, so don't define it when "use_libfuzzer" is
# is false.
if (use_libfuzzer) {
# Test that fuzzable_proto_library works. This target contains files that are
# optimized for LITE_RUNTIME and which import other files that are also
# optimized for LITE_RUNTIME.
fuzzer_test("lpm_test_fuzzer") {
sources = [ "test_fuzzer/test_fuzzer.cc" ]
deps = [
":libprotobuf-mutator",
":lpm_test_fuzzer_proto",
]
# Don't actually run this on CF. It's only a test to ensure builds work.
additional_configs = [ "//testing/libfuzzer:no_clusterfuzz" ]
}
}
# Proto library for lpm_test_fuzzer
fuzzable_proto_library("lpm_test_fuzzer_proto") {
sources = [
"test_fuzzer/imported.proto",
"test_fuzzer/imported_publicly.proto",
"test_fuzzer/test_fuzzer_input.proto",
]
}
# Avoid CQ complaints on platforms we don't care about (ie: iOS).
# Also prevent people from using this to include protobuf_full into a production
# build of Chrome.
if (use_fuzzing_engine_with_lpm) {
# Component that can provide protobuf_full to non-testonly targets
static_library("protobuf_full") {
public_deps = [ "//third_party/protobuf:protobuf_full" ]
sources = [ "dummy.cc" ]
}
}
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