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Reland "Linux perf tool support update + refactoring."

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This relands r22098.

BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/368433006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22118 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
jarin@chromium.org 2014-07-01 12:20:21 +00:00
parent 26eae0c429
commit 2b7580c2d4
12 changed files with 410 additions and 173 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
BUILD.gn
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@ -678,6 +678,8 @@ source_set("v8_base") {
"src/ostreams.h",
"src/parser.cc",
"src/parser.h",
"src/perf-jit.cc",
"src/perf-jit.h",
"src/preparse-data-format.h",
"src/preparse-data.cc",
"src/preparse-data.h",

3
build/android.gypi
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@ -280,6 +280,9 @@
'-Wl,-O1',
'-Wl,--as-needed',
],
'libraries': [
'-lrt',
],
}],
], # target_conditions
}, # target_defaults

11
src/base/platform/platform-posix.cc
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@ -20,9 +20,9 @@
#include <sys/mman.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#if defined(__linux__)
#include <sys/prctl.h> // NOLINT, for prctl
#endif
@ -318,6 +318,15 @@ int OS::GetCurrentProcessId() {
}
int OS::GetCurrentThreadId() {
#if defined(ANDROID)
return static_cast<int>(syscall(__NR_gettid));
#else
return static_cast<int>(syscall(SYS_gettid));
#endif // defined(ANDROID)
}
// ----------------------------------------------------------------------------
// POSIX date/time support.
//

5
src/base/platform/platform-win32.cc
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@ -517,6 +517,11 @@ int OS::GetCurrentProcessId() {
}
int OS::GetCurrentThreadId() {
return static_cast<int>(::GetCurrentThreadId());
}
// ----------------------------------------------------------------------------
// Win32 console output.
//

2
src/base/platform/platform.h
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@ -307,6 +307,8 @@ class OS {
static int GetCurrentProcessId();
static int GetCurrentThreadId();
private:
static const int msPerSecond = 1000;

2
src/flag-definitions.h
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@ -786,8 +786,10 @@ DEFINE_bool(logfile_per_isolate, true, "Separate log files for each isolate.")
DEFINE_bool(ll_prof, false, "Enable low-level linux profiler.")
DEFINE_bool(perf_basic_prof, false,
"Enable perf linux profiler (basic support).")
DEFINE_neg_implication(perf_basic_prof, compact_code_space)
DEFINE_bool(perf_jit_prof, false,
"Enable perf linux profiler (experimental annotate support).")
DEFINE_neg_implication(perf_jit_prof, compact_code_space)
DEFINE_string(gc_fake_mmap, "/tmp/__v8_gc__",
"Specify the name of the file for fake gc mmap used in ll_prof")
DEFINE_bool(log_internal_timer_events, false, "Time internal events.")

6
src/isolate.cc
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@ -1954,12 +1954,6 @@ bool Isolate::Init(Deserializer* des) {
LOG(this, LogCompiledFunctions());
}
// If we are profiling with the Linux perf tool, we need to disable
// code relocation.
if (FLAG_perf_jit_prof || FLAG_perf_basic_prof) {
FLAG_compact_code_space = false;
}
CHECK_EQ(static_cast<int>(OFFSET_OF(Isolate, embedder_data_)),
Internals::kIsolateEmbedderDataOffset);
CHECK_EQ(static_cast<int>(OFFSET_OF(Isolate, heap_.roots_)),

167
src/log.cc
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@ -15,6 +15,7 @@
#include "src/log.h"
#include "src/log-utils.h"
#include "src/macro-assembler.h"
#include "src/perf-jit.h"
#include "src/runtime-profiler.h"
#include "src/serialize.h"
#include "src/string-stream.h"
@ -289,172 +290,6 @@ void PerfBasicLogger::LogRecordedBuffer(Code* code,
}
// Linux perf tool logging support
class PerfJitLogger : public CodeEventLogger {
public:
PerfJitLogger();
virtual ~PerfJitLogger();
virtual void CodeMoveEvent(Address from, Address to) { }
virtual void CodeDisableOptEvent(Code* code, SharedFunctionInfo* shared) { }
virtual void CodeDeleteEvent(Address from) { }
private:
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 kJitHeaderMagic = 0x4F74496A;
static const uint32_t kJitHeaderVersion = 0x2;
static const uint32_t kElfMachIA32 = 3;
static const uint32_t kElfMachX64 = 62;
static const uint32_t kElfMachARM = 40;
static const uint32_t kElfMachMIPS = 10;
static const uint32_t kElfMachX87 = 3;
struct jitheader {
uint32_t magic;
uint32_t version;
uint32_t total_size;
uint32_t elf_mach;
uint32_t pad1;
uint32_t pid;
uint64_t timestamp;
};
enum jit_record_type {
JIT_CODE_LOAD = 0
// JIT_CODE_UNLOAD = 1,
// JIT_CODE_CLOSE = 2,
// JIT_CODE_DEBUG_INFO = 3,
// JIT_CODE_PAGE_MAP = 4,
// JIT_CODE_MAX = 5
};
struct jr_code_load {
uint32_t id;
uint32_t total_size;
uint64_t timestamp;
uint64_t vma;
uint64_t code_addr;
uint32_t code_size;
uint32_t align;
};
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;
#elif V8_TARGET_ARCH_X87
return kElfMachX87;
#else
UNIMPLEMENTED();
return 0;
#endif
}
FILE* perf_output_handle_;
};
const char PerfJitLogger::kFilenameFormatString[] = "/tmp/jit-%d.dump";
// Extra padding for the PID in the filename
const int PerfJitLogger::kFilenameBufferPadding = 16;
PerfJitLogger::PerfJitLogger()
: perf_output_handle_(NULL) {
// 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);
LogWriteHeader();
}
PerfJitLogger::~PerfJitLogger() {
fclose(perf_output_handle_);
perf_output_handle_ = NULL;
}
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.id = JIT_CODE_LOAD;
code_load.total_size = sizeof(code_load) + length + 1 + code_size;
code_load.timestamp =
static_cast<uint64_t>(base::OS::TimeCurrentMillis() * 1000.0);
code_load.vma = 0x0; // Our addresses are absolute.
code_load.code_addr = reinterpret_cast<uint64_t>(code->instruction_start());
code_load.code_size = code_size;
code_load.align = 0;
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::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 = kJitHeaderMagic;
header.version = kJitHeaderVersion;
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));
}
// Low-level logging support.
#define LL_LOG(Call) if (ll_logger_) ll_logger_->Call;

169
src/perf-jit.cc Normal file
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@ -0,0 +1,169 @@
// 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

129
src/perf-jit.h Normal file
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@ -0,0 +1,129 @@
// 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 {
#ifdef __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;
static const char kTraceClockDevice[];
static const int kClockInvalid = -1;
static const uint64_t kNsecPerSec = 1000000000;
// 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_;
int clock_fd_;
int clock_id_;
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 // defined(__linux__)
} } // namespace v8::internal
#endif

85
src/third_party/kernel/tools/perf/util/jitdump.h vendored Normal file
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@ -0,0 +1,85 @@
#ifndef JITDUMP_H
#define JITDUMP_H
#include <sys/time.h>
#include <time.h>
#include <stdint.h>
/* JiTD */
#define JITHEADER_MAGIC 0x4A695444
#define JITHEADER_MAGIC_SW 0x4454694A
#define PADDING_8ALIGNED(x) ((((x) + 7) & 7) ^ 7)
#define JITHEADER_VERSION 1
struct jitheader {
uint32_t magic; /* characters "jItD" */
uint32_t version; /* header version */
uint32_t total_size; /* total size of header */
uint32_t elf_mach; /* elf mach target */
uint32_t pad1; /* reserved */
uint32_t pid; /* JIT process id */
uint64_t timestamp; /* timestamp */
};
enum jit_record_type {
JIT_CODE_LOAD = 0,
JIT_CODE_MOVE = 1,
JIT_CODE_DEBUG_INFO = 2,
JIT_CODE_CLOSE = 3,
JIT_CODE_MAX
};
/* record prefix (mandatory in each record) */
struct jr_prefix {
uint32_t id;
uint32_t total_size;
uint64_t timestamp;
};
struct jr_code_load {
struct jr_prefix p;
uint32_t pid;
uint32_t tid;
uint64_t vma;
uint64_t code_addr;
uint64_t code_size;
uint64_t code_index;
};
struct jr_code_close {
struct jr_prefix p;
};
struct jr_code_move {
struct jr_prefix p;
uint32_t pid;
uint32_t tid;
uint64_t vma;
uint64_t old_code_addr;
uint64_t new_code_addr;
uint64_t code_size;
uint64_t code_index;
};
struct jr_code_debug_info {
struct jr_prefix p;
uint64_t code_addr;
uint64_t nr_entry;
};
union jr_entry {
struct jr_code_debug_info info;
struct jr_code_close close;
struct jr_code_load load;
struct jr_code_move move;
struct jr_prefix prefix;
};
#endif /* !JITDUMP_H */

2
tools/gyp/v8.gyp
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@ -577,6 +577,8 @@
'../../src/ostreams.h',
'../../src/parser.cc',
'../../src/parser.h',
'../../src/perf-jit.cc',
'../../src/perf-jit.h',
'../../src/preparse-data-format.h',
'../../src/preparse-data.cc',
'../../src/preparse-data.h',