|  | # Copyright 2017 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. | 
|  |  | 
|  | import("//build/config/coverage/coverage.gni") | 
|  |  | 
|  | config("default_coverage") { | 
|  | if (use_clang_coverage) { | 
|  | cflags = [ | 
|  | "-fprofile-instr-generate", | 
|  | "-fcoverage-mapping", | 
|  | "-fno-use-cxa-atexit", | 
|  |  | 
|  | # Following experimental flags removes unused header functions from the | 
|  | # coverage mapping data embedded in the test binaries, and the reduction | 
|  | # of binary size enables building Chrome's large unit test targets on | 
|  | # MacOS. Please refer to crbug.com/796290 for more details. | 
|  | "-mllvm", | 
|  | "-limited-coverage-experimental=true", | 
|  | ] | 
|  | ldflags = [ "-fprofile-instr-generate" ] | 
|  | } | 
|  | } |