PerfSpewer.h
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* 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 http://mozilla.org/MPL/2.0/. */
#ifndef jit_PerfSpewer_h
#define jit_PerfSpewer_h
#ifdef JS_ION_PERF
# include <stdio.h>
# include "jit/MacroAssembler.h"
#endif
namespace {
struct AutoLockPerfMap;
}
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();
}
#else
static inline void CheckPerf() {}
static inline bool PerfBlockEnabled() { return false; }
static inline bool PerfFuncEnabled() { return false; }
static inline bool PerfEnabled() { return false; }
#endif
#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 {
protected:
static uint32_t nextFunctionIndex;
public:
Label endInlineCode;
protected:
BasicBlocksVector basicBlocks_;
public:
virtual MOZ_MUST_USE bool startBasicBlock(MBasicBlock* blk,
MacroAssembler& masm);
virtual void endBasicBlock(MacroAssembler& masm);
void noteEndInlineCode(MacroAssembler& masm);
void writeProfile(JSScript* script, JitCode* code, MacroAssembler& masm);
static void WriteEntry(const AutoLockPerfMap&, uintptr_t address, size_t size,
const char* fmt, ...) MOZ_FORMAT_PRINTF(4, 5);
};
void writePerfSpewerBaselineProfile(JSScript* script, JitCode* code);
void writePerfSpewerJitCodeProfile(JitCode* code, const char* msg);
// wasm doesn't support block annotations.
class WasmPerfSpewer : public PerfSpewer {
public:
MOZ_MUST_USE bool startBasicBlock(MBasicBlock* blk, MacroAssembler& masm) {
return true;
}
void endBasicBlock(MacroAssembler& masm) {}
};
void writePerfSpewerWasmMap(uintptr_t base, uintptr_t size,
const char* filename, const char* annotation);
void writePerfSpewerWasmFunctionMap(uintptr_t base, uintptr_t size,
const char* filename, unsigned lineno,
const char* funcName);
#endif // JS_ION_PERF
} // namespace jit
} // namespace js
#endif /* jit_PerfSpewer_h */