/* * Copyright (C) 2018 Yusuke Suzuki <yusukesuzuki@slowstart.org>. * * 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. ``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 * 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(ASSEMBLER) && OS(LINUX) #include <stdio.h> #include <wtf/Lock.h> #include <wtf/text/CString.h> namespace JSC { class PerfLog { WTF_MAKE_FAST_ALLOCATED; WTF_MAKE_NONCOPYABLE(PerfLog); public: static void log(CString&&, const uint8_t* executableAddress, size_t); private: PerfLog(); static PerfLog& singleton(); void write(const AbstractLocker&, const void*, size_t); void flush(const AbstractLocker&); FILE* m_file { nullptr }; void* m_marker { nullptr }; uint64_t m_codeIndex { 0 }; int m_fd { -1 }; Lock m_lock; }; } // namespace JSC #endif // ENABLE(ASSEMBLER) && OS(LINUX)