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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at */
#ifndef jit_PerfSpewer_h
#define jit_PerfSpewer_h
#ifdef JS_ION_PERF
# include <stdio.h>
# include "jit/MacroAssembler.h"
namespace js {
namespace jit {
class MBasicBlock;
class MacroAssembler;
#ifdef JS_ION_PERF
void CheckPerf();
bool PerfBlockEnabled();
bool PerfFuncEnabled();
static inline bool PerfEnabled() {
return PerfBlockEnabled() || PerfFuncEnabled();
static inline void CheckPerf() {}
static inline bool PerfBlockEnabled() { return false; }
static inline bool PerfFuncEnabled() { return false; }
static inline bool PerfEnabled() { return false; }
#ifdef JS_ION_PERF
struct Record {
const char* filename;
unsigned lineNumber;
unsigned columnNumber;
uint32_t id;
Label start, end;
size_t startOffset, endOffset;
Record(const char* filename,
unsigned lineNumber,
unsigned columnNumber,
uint32_t id)
: filename(filename), lineNumber(lineNumber),
columnNumber(columnNumber), id(id),
startOffset(0u), endOffset(0u)
typedef Vector<Record, 1, SystemAllocPolicy> BasicBlocksVector;
class PerfSpewer
static uint32_t nextFunctionIndex;
Label endInlineCode;
BasicBlocksVector basicBlocks_;
virtual bool startBasicBlock(MBasicBlock* blk, MacroAssembler& masm);
virtual bool endBasicBlock(MacroAssembler& masm);
bool noteEndInlineCode(MacroAssembler& masm);
void writeProfile(JSScript* script, JitCode* code, MacroAssembler& masm);
void writePerfSpewerBaselineProfile(JSScript* script, JitCode* code);
void writePerfSpewerJitCodeProfile(JitCode* code, const char* msg);
// AsmJS doesn't support block annotations.
class AsmJSPerfSpewer : public PerfSpewer
bool startBasicBlock(MBasicBlock* blk, MacroAssembler& masm) { return true; }
bool endBasicBlock(MacroAssembler& masm) { return true; }
void writePerfSpewerAsmJSFunctionMap(uintptr_t base, uintptr_t size, const char* filename,
unsigned lineno, unsigned colIndex, const char* funcName);
#endif // JS_ION_PERF
} // namespace jit
} // namespace js
#endif /* jit_PerfSpewer_h */