Upgrade V8 to 5.1.281.57 DO NOT MERGE
FPIIM-449
Change-Id: Id981b686b4d587ac31697662eb98bb34be42ad90
(cherry picked from commit 3b9bc31999c9787eb726ecdbfd5796bfdec32a18)
diff --git a/src/perf-jit.h b/src/perf-jit.h
new file mode 100644
index 0000000..25cc3b3
--- /dev/null
+++ b/src/perf-jit.h
@@ -0,0 +1,122 @@
+// Copyright 2016 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/log.h"
+
+namespace v8 {
+namespace internal {
+
+#if V8_OS_LINUX
+
+// Linux perf tool logging support
+class PerfJitLogger : public CodeEventLogger {
+ public:
+ PerfJitLogger();
+ virtual ~PerfJitLogger();
+
+ void CodeMoveEvent(AbstractCode* from, Address to) override;
+ void CodeDisableOptEvent(AbstractCode* code,
+ SharedFunctionInfo* shared) override {}
+
+ private:
+ void OpenJitDumpFile();
+ void CloseJitDumpFile();
+ void* OpenMarkerFile(int fd);
+ void CloseMarkerFile(void* marker_address);
+
+ uint64_t GetTimestamp();
+ void LogRecordedBuffer(AbstractCode* code, SharedFunctionInfo* shared,
+ const char* name, int length) override;
+
+ // 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();
+ void LogWriteDebugInfo(Code* code, SharedFunctionInfo* shared);
+
+ 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
+ }
+
+ // Per-process singleton file. We assume that there is one main isolate;
+ // to determine when it goes away, we keep reference count.
+ static base::LazyRecursiveMutex file_mutex_;
+ static FILE* perf_output_handle_;
+ static uint64_t reference_count_;
+ static void* marker_address_;
+ static uint64_t code_index_;
+};
+
+#else
+
+// PerfJitLogger is only implemented on Linux
+class PerfJitLogger : public CodeEventLogger {
+ public:
+ void CodeMoveEvent(AbstractCode* from, Address to) override {
+ UNIMPLEMENTED();
+ }
+
+ void CodeDisableOptEvent(AbstractCode* code,
+ SharedFunctionInfo* shared) override {
+ UNIMPLEMENTED();
+ }
+
+ void LogRecordedBuffer(AbstractCode* code, SharedFunctionInfo* shared,
+ const char* name, int length) override {
+ UNIMPLEMENTED();
+ }
+};
+
+#endif // V8_OS_LINUX
+} // namespace internal
+} // namespace v8
+#endif