forked from OSchip/llvm-project
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
//===-- xray_log_interface.cc ---------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of XRay, a function call tracing system.
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//
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//===----------------------------------------------------------------------===//
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#include "xray/xray_log_interface.h"
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#include "sanitizer_common/sanitizer_atomic.h"
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#include "sanitizer_common/sanitizer_mutex.h"
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#include "xray/xray_interface.h"
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#include "xray_defs.h"
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#include <memory>
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__sanitizer::SpinMutex XRayImplMutex;
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std::unique_ptr<XRayLogImpl> GlobalXRayImpl;
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void __xray_set_log_impl(XRayLogImpl Impl) XRAY_NEVER_INSTRUMENT {
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if (Impl.log_init == nullptr || Impl.log_finalize == nullptr ||
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Impl.handle_arg0 == nullptr || Impl.flush_log == nullptr) {
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__sanitizer::SpinMutexLock Guard(&XRayImplMutex);
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GlobalXRayImpl.reset();
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__xray_remove_handler();
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__xray_remove_handler_arg1();
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return;
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}
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__sanitizer::SpinMutexLock Guard(&XRayImplMutex);
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GlobalXRayImpl.reset(new XRayLogImpl);
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*GlobalXRayImpl = Impl;
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__xray_set_handler(Impl.handle_arg0);
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}
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void __xray_remove_log_impl() XRAY_NEVER_INSTRUMENT {
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__sanitizer::SpinMutexLock Guard(&XRayImplMutex);
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GlobalXRayImpl.reset();
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__xray_remove_handler();
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__xray_remove_handler_arg1();
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}
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XRayLogInitStatus __xray_log_init(size_t BufferSize, size_t MaxBuffers,
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void *Args,
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size_t ArgsSize) XRAY_NEVER_INSTRUMENT {
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__sanitizer::SpinMutexLock Guard(&XRayImplMutex);
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if (!GlobalXRayImpl)
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return XRayLogInitStatus::XRAY_LOG_UNINITIALIZED;
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return GlobalXRayImpl->log_init(BufferSize, MaxBuffers, Args, ArgsSize);
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}
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XRayLogInitStatus __xray_log_finalize() XRAY_NEVER_INSTRUMENT {
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__sanitizer::SpinMutexLock Guard(&XRayImplMutex);
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if (!GlobalXRayImpl)
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return XRayLogInitStatus::XRAY_LOG_UNINITIALIZED;
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return GlobalXRayImpl->log_finalize();
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}
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XRayLogFlushStatus __xray_log_flushLog() XRAY_NEVER_INSTRUMENT {
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__sanitizer::SpinMutexLock Guard(&XRayImplMutex);
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if (!GlobalXRayImpl)
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return XRayLogFlushStatus::XRAY_LOG_NOT_FLUSHING;
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return GlobalXRayImpl->flush_log();
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}
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