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/*
* Copyright (C) 2025 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(LLVM_PROFILE_GENERATION) && PLATFORM(IOS_FAMILY)
#include <unistd.h>
#include <wtf/Assertions.h>
extern "C" int __llvm_profile_runtime = 0;
extern "C" void __llvm_profile_initialize_file(void);
extern "C" const char *__llvm_profile_get_filename(void);
namespace WTF {
ALWAYS_INLINE void initializeLLVMProfiling()
{
static std::once_flag registerFlag;
std::call_once(registerFlag, [] {
__llvm_profile_initialize_file();
const char *profilePath = __llvm_profile_get_filename();
int pid = getpid();
if (access(profilePath, F_OK))
WTFLogAlways("Process(%d) failed to create LLVM profile at %s.", pid, profilePath);
else
WTFLogAlways("Process(%d) created LLVM profile at %s.", pid, profilePath);
});
}
} // namespace WTF
#endif // ENABLE(LLVM_PROFILE_GENERATION) && PLATFORM(IOS_FAMILY)
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