1// Copyright 2017 The Chromium Authors 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#import <Foundation/Foundation.h> 6 7#import "testing/gtest/ios_enable_coverage.h" 8 9#if !defined(NDEBUG) && BUILDFLAG(IOS_ENABLE_COVERAGE) && \ 10 TARGET_IPHONE_SIMULATOR 11extern "C" void __llvm_profile_set_filename(const char* name); 12#endif 13 14namespace coverage_util { 15 16void ConfigureCoverageReportPath() { 17// Targets won't build on real devices with BUILDFLAG(IOS_ENABLE_COVERAGE) 18// because of llvm library linking issue for arm64 architecture. 19#if !defined(NDEBUG) && BUILDFLAG(IOS_ENABLE_COVERAGE) && \ 20 TARGET_IPHONE_SIMULATOR 21 static dispatch_once_t once_token; 22 dispatch_once(&once_token, ^{ 23 // Writes the profraw file to the simulator shared resources directory, 24 // where the app has write rights, and will be preserved after app is 25 // killed. 26 NSString* shared_resources_path = 27 NSProcessInfo.processInfo 28 .environment[@"SIMULATOR_SHARED_RESOURCES_DIRECTORY"]; 29 // UUID ensures that there won't be a conflict when multiple apps are 30 // launched in one test suite in EG2. %m enables on-line profile merging. 31 // %c helps preserve coverage data at crash. 32 NSString* file_name = [NSString 33 stringWithFormat:@"%@-%%m-%%c.profraw", NSUUID.UUID.UUIDString]; 34 NSString* file_path = 35 [shared_resources_path stringByAppendingPathComponent:file_name]; 36 37 // For documentation, see: 38 // http://clang.llvm.org/docs/SourceBasedCodeCoverage.html 39 __llvm_profile_set_filename( 40 [file_path cStringUsingEncoding:NSUTF8StringEncoding]); 41 42 // Print the path for easier retrieval. 43 NSLog(@"Coverage data at %@.", file_path); 44 }); 45#endif // !defined(NDEBUG) && BUILDFLAG(IOS_ENABLE_COVERAGE) && 46 // TARGET_IPHONE_SIMULATOR 47} 48 49} // namespace coverage_util 50