perf-jit.cc | Explore in Territory

// Copyright 2016 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
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//       notice, this list of conditions and the following disclaimer.
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//       with the distribution.
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//
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#include "src/diagnostics/perf-jit.h"

#include "src/common/assert-scope.h"
#include "src/flags/flags.h"

// Only compile the {LinuxPerfJitLogger} on Linux.
#if V8_OS_LINUX

#include <fcntl.h>
#include <sys/mman.h>
#include <unistd.h>

#include <memory>

#include "src/base/platform/wrappers.h"
#include "src/codegen/assembler.h"
#include "src/codegen/source-position-table.h"
#include "src/diagnostics/eh-frame.h"
#include "src/objects/code-kind.h"
#include "src/objects/objects-inl.h"
#include "src/objects/shared-function-info.h"
#include "src/snapshot/embedded/embedded-data.h"
#include "src/utils/ostreams.h"

#if V8_ENABLE_WEBASSEMBLY
#include "src/wasm/wasm-code-manager.h"
#endif  // V8_ENABLE_WEBASSEMBLY

namespace v8 {
namespace internal {

base::LazyRecursiveMutex& GetFileMutex() { … }

struct PerfJitHeader { … };

struct PerfJitBase { … };

struct PerfJitCodeLoad : PerfJitBase { … };

struct PerfJitDebugEntry { … };

struct PerfJitCodeDebugInfo : PerfJitBase { … };

struct PerfJitCodeUnwindingInfo : PerfJitBase { … };

const char LinuxPerfJitLogger::kFilenameFormatString[] = …;

// Extra padding for the PID in the filename
const int LinuxPerfJitLogger::kFilenameBufferPadding = …;

static const char kStringTerminator[] = …;

// The following static variables are protected by
// GetFileMutex().
int LinuxPerfJitLogger::process_id_ = …;
uint64_t LinuxPerfJitLogger::reference_count_ = …;
void* LinuxPerfJitLogger::marker_address_ = …;
uint64_t LinuxPerfJitLogger::code_index_ = …;
FILE* LinuxPerfJitLogger::perf_output_handle_ = …;

void LinuxPerfJitLogger::OpenJitDumpFile() { … }

void LinuxPerfJitLogger::CloseJitDumpFile() { … }

void* LinuxPerfJitLogger::OpenMarkerFile(int fd) { … }

void LinuxPerfJitLogger::CloseMarkerFile(void* marker_address) { … }

LinuxPerfJitLogger::LinuxPerfJitLogger(Isolate* isolate)
    : … { … }

LinuxPerfJitLogger::~LinuxPerfJitLogger() { … }

uint64_t LinuxPerfJitLogger::GetTimestamp() { … }

void LinuxPerfJitLogger::LogRecordedBuffer(
    Tagged<AbstractCode> abstract_code,
    MaybeHandle<SharedFunctionInfo> maybe_sfi, const char* name, int length) { … }

#if V8_ENABLE_WEBASSEMBLY
void LinuxPerfJitLogger::LogRecordedBuffer(const wasm::WasmCode* code,
                                           const char* name, int length) { … }
#endif  // V8_ENABLE_WEBASSEMBLY

void LinuxPerfJitLogger::WriteJitCodeLoadEntry(const uint8_t* code_pointer,
                                               uint32_t code_size,
                                               const char* name,
                                               int name_length) { … }

namespace {

constexpr char kUnknownScriptNameString[] = …;
constexpr size_t kUnknownScriptNameStringLen = …;

namespace {
base::Vector<const char> GetScriptName(Tagged<Object> maybeScript,
                                       std::unique_ptr<char[]>* storage,
                                       const DisallowGarbageCollection& no_gc) { … }

}  // namespace

SourcePositionInfo GetSourcePositionInfo(Isolate* isolate, Tagged<Code> code,
                                         Handle<SharedFunctionInfo> function,
                                         SourcePosition pos) { … }

}  // namespace

void LinuxPerfJitLogger::LogWriteDebugInfo(Tagged<Code> code,
                                           Handle<SharedFunctionInfo> shared) { … }

#if V8_ENABLE_WEBASSEMBLY
void LinuxPerfJitLogger::LogWriteDebugInfo(const wasm::WasmCode* code) { … }
#endif  // V8_ENABLE_WEBASSEMBLY

void LinuxPerfJitLogger::LogWriteUnwindingInfo(Tagged<Code> code) { … }

void LinuxPerfJitLogger::LogWriteBytes(const char* bytes, int size) { … }

void LinuxPerfJitLogger::LogWriteHeader() { … }

}  // namespace internal
}  // namespace v8

#endif  // V8_OS_LINUX
chromium/v8/src/diagnostics/perf-jit.cc
