f63193af5c
Add %c to raw profile filename pattern so coverage data won't lost at program crash. See: https://clang.llvm.org/docs/SourceBasedCodeCoverage.html#running-the-instrumented-program Bug: 1090188 Change-Id: I4eab6137a385701186f2c330ce4be35e2694b229 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2472920 Reviewed-by: Yuke Liao <liaoyuke@chromium.org> Reviewed-by: John Chen <johnchen@chromium.org> Commit-Queue: Zhaoyang Li <zhaoyangli@chromium.org> Cr-Commit-Position: refs/heads/master@{#817265}
50 lines
1.9 KiB
Plaintext
50 lines
1.9 KiB
Plaintext
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#import <Foundation/Foundation.h>
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#import "testing/gtest/ios_enable_coverage.h"
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#if !defined(NDEBUG) && BUILDFLAG(IOS_ENABLE_COVERAGE) && \
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TARGET_IPHONE_SIMULATOR
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extern "C" void __llvm_profile_set_filename(const char* name);
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#endif
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namespace coverage_util {
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void ConfigureCoverageReportPath() {
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// Targets won't build on real devices with BUILDFLAG(IOS_ENABLE_COVERAGE)
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// because of llvm library linking issue for arm64 architecture.
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#if !defined(NDEBUG) && BUILDFLAG(IOS_ENABLE_COVERAGE) && \
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TARGET_IPHONE_SIMULATOR
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static dispatch_once_t once_token;
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dispatch_once(&once_token, ^{
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// Writes the profraw file to the simulator shared resources directory,
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// where the app has write rights, and will be preserved after app is
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// killed.
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NSString* shared_resources_path =
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NSProcessInfo.processInfo
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.environment[@"SIMULATOR_SHARED_RESOURCES_DIRECTORY"];
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// UUID ensures that there won't be a conflict when multiple apps are
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// launched in one test suite in EG2. %m enables on-line profile merging.
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// %c helps preserve coverage data at crash.
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NSString* file_name = [NSString
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stringWithFormat:@"%@-%%m-%%c.profraw", NSUUID.UUID.UUIDString];
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NSString* file_path =
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[shared_resources_path stringByAppendingPathComponent:file_name];
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// For documentation, see:
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// http://clang.llvm.org/docs/SourceBasedCodeCoverage.html
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__llvm_profile_set_filename(
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[file_path cStringUsingEncoding:NSUTF8StringEncoding]);
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// Print the path for easier retrieval.
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NSLog(@"Coverage data at %@.", file_path);
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});
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#endif // !defined(NDEBUG) && BUILDFLAG(IOS_ENABLE_COVERAGE) &&
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// TARGET_IPHONE_SIMULATOR
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}
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} // namespace coverage_util
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