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Unified Diff: src/perf-jit.cc

Issue 367633003: Revert "Linux perf tool support update + refactoring." (r22118). (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 6 months ago
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Index: src/perf-jit.cc
diff --git a/src/perf-jit.cc b/src/perf-jit.cc
deleted file mode 100644
index 4ed36d17e9f79e80dde8c523669e87154f5a2fb1..0000000000000000000000000000000000000000
--- a/src/perf-jit.cc
+++ /dev/null
@@ -1,169 +0,0 @@
-// 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.
-
-#ifdef __linux__
-#include <fcntl.h>
-#include "src/third_party/kernel/tools/perf/util/jitdump.h"
-#endif
-
-#include "src/perf-jit.h"
-
-
-namespace v8 {
-namespace internal {
-
-#ifdef __linux__
-
-const char PerfJitLogger::kFilenameFormatString[] = "perfjit-%d.dump";
-
-// Timestamp module name
-const char PerfJitLogger::kTraceClockDevice[] = "/dev/trace_clock";
-
-// Extra padding for the PID in the filename
-const int PerfJitLogger::kFilenameBufferPadding = 16;
-
-
-static clockid_t get_clockid(int fd) {
- return ((~(clockid_t) (fd) << 3) | 3);
-}
-
-
-PerfJitLogger::PerfJitLogger()
- : perf_output_handle_(NULL),
- code_index_(0) {
- // Open the perf JIT dump file.
- int bufferSize = sizeof(kFilenameFormatString) + kFilenameBufferPadding;
- ScopedVector<char> perf_dump_name(bufferSize);
- int size = SNPrintF(
- perf_dump_name,
- kFilenameFormatString,
- base::OS::GetCurrentProcessId());
- CHECK_NE(size, -1);
- perf_output_handle_ = base::OS::FOpen(perf_dump_name.start(),
- base::OS::LogFileOpenMode);
- CHECK_NE(perf_output_handle_, NULL);
- setvbuf(perf_output_handle_, NULL, _IOFBF, kLogBufferSize);
- clock_fd_ = open(kTraceClockDevice, O_RDONLY);
- if (clock_fd_ == -1) {
- FATAL("Could not get perf timestamp clock");
- }
- clock_id_ = get_clockid(clock_fd_);
- if (kClockInvalid == clock_id_) {
- FATAL("Could not get perf timestamp clock");
- }
-
- LogWriteHeader();
-}
-
-
-PerfJitLogger::~PerfJitLogger() {
- fclose(perf_output_handle_);
- close(clock_fd_);
- perf_output_handle_ = NULL;
-}
-
-
-uint64_t PerfJitLogger::GetTimestamp() {
- struct timespec ts;
-
- clock_gettime(clock_id_, &ts);
- return ((uint64_t) ts.tv_sec * kNsecPerSec) + ts.tv_nsec;
-}
-
-
-void PerfJitLogger::LogRecordedBuffer(Code* code,
- SharedFunctionInfo*,
- const char* name,
- int length) {
- ASSERT(code->instruction_start() == code->address() + Code::kHeaderSize);
- ASSERT(perf_output_handle_ != NULL);
-
- const char* code_name = name;
- uint8_t* code_pointer = reinterpret_cast<uint8_t*>(code->instruction_start());
- uint32_t code_size = code->instruction_size();
-
- static const char string_terminator[] = "\0";
-
- jr_code_load code_load;
- code_load.p.id = JIT_CODE_LOAD;
- code_load.p.total_size = sizeof(code_load) + length + 1 + code_size;
- code_load.p.timestamp = GetTimestamp();
- code_load.pid = static_cast<uint32_t>(base::OS::GetCurrentProcessId());
- code_load.tid = static_cast<uint32_t>(base::OS::GetCurrentThreadId());
- code_load.vma = 0x0; // Our addresses are absolute.
- code_load.code_addr = reinterpret_cast<uint64_t>(code_pointer);
- code_load.code_size = code_size;
- code_load.code_index = code_index_;
-
- code_index_++;
-
- LogWriteBytes(reinterpret_cast<const char*>(&code_load), sizeof(code_load));
- LogWriteBytes(code_name, length);
- LogWriteBytes(string_terminator, 1);
- LogWriteBytes(reinterpret_cast<const char*>(code_pointer), code_size);
-}
-
-
-void PerfJitLogger::CodeMoveEvent(Address from, Address to) {
- // Code relocation not supported.
- UNREACHABLE();
-}
-
-
-void PerfJitLogger::CodeDeleteEvent(Address from) {
- // V8 does not send notification on code unload
-}
-
-
-void PerfJitLogger::SnapshotPositionEvent(Address addr, int pos) {
-}
-
-
-void PerfJitLogger::LogWriteBytes(const char* bytes, int size) {
- size_t rv = fwrite(bytes, 1, size, perf_output_handle_);
- ASSERT(static_cast<size_t>(size) == rv);
- USE(rv);
-}
-
-
-void PerfJitLogger::LogWriteHeader() {
- ASSERT(perf_output_handle_ != NULL);
- jitheader header;
- header.magic = JITHEADER_MAGIC;
- header.version = JITHEADER_VERSION;
- header.total_size = sizeof(jitheader);
- header.pad1 = 0xdeadbeef;
- header.elf_mach = GetElfMach();
- header.pid = base::OS::GetCurrentProcessId();
- header.timestamp =
- static_cast<uint64_t>(base::OS::TimeCurrentMillis() * 1000.0);
- LogWriteBytes(reinterpret_cast<const char*>(&header), sizeof(header));
-}
-
-#endif // defined(__linux__)
-
-} } // namespace v8::internal
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