cfccf7938e
Bringing the offending timer functions to the platform dependent files. BUG= R=yangguo@chromium.org Review URL: https://codereview.chromium.org/367033002 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22210 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
121 lines
4.2 KiB
C++
121 lines
4.2 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * 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.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
|
|
// OWNER 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.
|
|
|
|
#ifndef V8_PERF_JIT_H_
|
|
#define V8_PERF_JIT_H_
|
|
|
|
#include "src/v8.h"
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
|
|
// TODO(jarin) For now, we disable perf integration on Android because of a
|
|
// build problem - when building the snapshot with AOSP, librt is not
|
|
// available, so we cannot use the clock_gettime function. To fix this, we
|
|
// should thread through the V8_LIBRT_NOT_AVAILABLE flag here and only disable
|
|
// the perf integration when this flag is present (the perf integration is not
|
|
// needed when generating snapshot, so it is fine to ifdef it away).
|
|
|
|
#if V8_OS_LINUX
|
|
|
|
// Linux perf tool logging support
|
|
class PerfJitLogger : public CodeEventLogger {
|
|
public:
|
|
PerfJitLogger();
|
|
virtual ~PerfJitLogger();
|
|
|
|
virtual void CodeMoveEvent(Address from, Address to);
|
|
virtual void CodeDeleteEvent(Address from);
|
|
virtual void CodeDisableOptEvent(Code* code, SharedFunctionInfo* shared) {}
|
|
virtual void SnapshotPositionEvent(Address addr, int pos);
|
|
|
|
private:
|
|
uint64_t GetTimestamp();
|
|
virtual void LogRecordedBuffer(Code* code, SharedFunctionInfo* shared,
|
|
const char* name, int length);
|
|
|
|
// Extension added to V8 log file name to get the low-level log name.
|
|
static const char kFilenameFormatString[];
|
|
static const int kFilenameBufferPadding;
|
|
|
|
// File buffer size of the low-level log. We don't use the default to
|
|
// minimize the associated overhead.
|
|
static const int kLogBufferSize = 2 * MB;
|
|
|
|
void LogWriteBytes(const char* bytes, int size);
|
|
void LogWriteHeader();
|
|
|
|
static const uint32_t kElfMachIA32 = 3;
|
|
static const uint32_t kElfMachX64 = 62;
|
|
static const uint32_t kElfMachARM = 40;
|
|
static const uint32_t kElfMachMIPS = 10;
|
|
|
|
uint32_t GetElfMach() {
|
|
#if V8_TARGET_ARCH_IA32
|
|
return kElfMachIA32;
|
|
#elif V8_TARGET_ARCH_X64
|
|
return kElfMachX64;
|
|
#elif V8_TARGET_ARCH_ARM
|
|
return kElfMachARM;
|
|
#elif V8_TARGET_ARCH_MIPS
|
|
return kElfMachMIPS;
|
|
#else
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
FILE* perf_output_handle_;
|
|
uint64_t code_index_;
|
|
};
|
|
|
|
#else
|
|
|
|
// PerfJitLogger is only implemented on Linux
|
|
class PerfJitLogger : public CodeEventLogger {
|
|
public:
|
|
virtual void CodeMoveEvent(Address from, Address to) { UNIMPLEMENTED(); }
|
|
|
|
virtual void CodeDeleteEvent(Address from) { UNIMPLEMENTED(); }
|
|
|
|
virtual void CodeDisableOptEvent(Code* code, SharedFunctionInfo* shared) {
|
|
UNIMPLEMENTED();
|
|
}
|
|
|
|
virtual void SnapshotPositionEvent(Address addr, int pos) { UNIMPLEMENTED(); }
|
|
|
|
virtual void LogRecordedBuffer(Code* code, SharedFunctionInfo* shared,
|
|
const char* name, int length) {
|
|
UNIMPLEMENTED();
|
|
}
|
|
};
|
|
|
|
#endif // V8_OS_LINUX
|
|
}
|
|
} // namespace v8::internal
|
|
#endif
|