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/* -*- 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
#ifndef jit_PerfSpewer_h
#define jit_PerfSpewer_h
#ifdef JS_ION_PERF
# include <stdio.h>
#endif
#include "js/AllocPolicy.h"
#include "js/Vector.h"
class JSScript;
enum class JSOp : uint8_t;
namespace js {
namespace wasm {
struct OpBytes;
}
namespace jit {
class JitCode;
class CompilerFrameInfo;
class MacroAssembler;
class MBasicBlock;
class LInstruction;
enum class CacheOp : uint16_t;
struct AutoLockPerfSpewer {
AutoLockPerfSpewer();
~AutoLockPerfSpewer();
};
bool PerfEnabled();
class PerfSpewer {
protected:
struct OpcodeEntry {
uint32_t offset = 0;
uint32_t opcode = 0;
jsbytecode* bytecodepc = nullptr;
// This string is used to replace the opcode, to define things like
// Prologue/Epilogue, or to add operand info.
JS::UniqueChars str;
explicit OpcodeEntry(uint32_t offset_, uint32_t opcode_,
JS::UniqueChars& str_, jsbytecode* pc)
: offset(offset_), opcode(opcode_), bytecodepc(pc) {
str = std::move(str_);
}
explicit OpcodeEntry(uint32_t offset_, uint32_t opcode_,
JS::UniqueChars& str_)
: offset(offset_), opcode(opcode_) {
str = std::move(str_);
}
explicit OpcodeEntry(uint32_t offset_, JS::UniqueChars& str_)
: offset(offset_) {
str = std::move(str_);
}
explicit OpcodeEntry(uint32_t offset_, uint32_t opcode_)
: offset(offset_), opcode(opcode_) {}
explicit OpcodeEntry(jsbytecode* pc) : bytecodepc(pc) {}
OpcodeEntry(OpcodeEntry&& copy) {
offset = copy.offset;
opcode = copy.opcode;
bytecodepc = copy.bytecodepc;
str = std::move(copy.str);
}
// Do not copy the UniqueChars member.
OpcodeEntry(OpcodeEntry& copy) = delete;
};
Vector<OpcodeEntry, 0, SystemAllocPolicy> opcodes_;
uint32_t startOffset_ = 0;
virtual const char* CodeName(uint32_t op) = 0;
virtual void saveJitCodeSourceInfo(JSScript* script, JitCode* code,
AutoLockPerfSpewer& lock);
void saveJitCodeDebugInfo(JSScript* script, JitCode* code,
AutoLockPerfSpewer& lock);
void saveWasmCodeDebugInfo(uintptr_t codeBase, AutoLockPerfSpewer& lock);
void saveJSProfile(JitCode* code, JS::UniqueChars& desc, JSScript* script);
void saveWasmProfile(uintptr_t codeBase, size_t codeSize,
JS::UniqueChars& desc);
void saveIRInfo(uintptr_t codeBase, AutoLockPerfSpewer& lock);
public:
PerfSpewer() = default;
PerfSpewer(PerfSpewer&&) = default;
PerfSpewer& operator=(PerfSpewer&&) = default;
void markStartOffset(uint32_t offset) { startOffset_ = offset; }
void recordOffset(MacroAssembler& masm, const char*);
static void Init();
static void CollectJitCodeInfo(JS::UniqueChars& function_name, JitCode* code,
AutoLockPerfSpewer& lock);
static void CollectJitCodeInfo(JS::UniqueChars& function_name,
void* code_addr, uint64_t code_size,
AutoLockPerfSpewer& lock);
};
void CollectPerfSpewerJitCodeProfile(JitCode* code, const char* msg);
void CollectPerfSpewerJitCodeProfile(uintptr_t base, uint64_t size,
const char* msg);
void CollectPerfSpewerWasmMap(uintptr_t base, uintptr_t size,
JS::UniqueChars&& desc);
class IonPerfSpewer : public PerfSpewer {
const char* CodeName(uint32_t op) override;
public:
IonPerfSpewer() = default;
IonPerfSpewer(IonPerfSpewer&&) = default;
IonPerfSpewer& operator=(IonPerfSpewer&&) = default;
void recordInstruction(MacroAssembler& masm, LInstruction* ins);
void saveJSProfile(JSContext* cx, JSScript* script, JitCode* code);
void saveWasmProfile(uintptr_t codeBase, size_t codeSize,
JS::UniqueChars& desc);
};
class WasmBaselinePerfSpewer : public PerfSpewer {
const char* CodeName(uint32_t op) override;
public:
WasmBaselinePerfSpewer() = default;
WasmBaselinePerfSpewer(WasmBaselinePerfSpewer&&) = default;
WasmBaselinePerfSpewer& operator=(WasmBaselinePerfSpewer&&) = default;
[[nodiscard]] bool needsToRecordInstruction() const;
void recordInstruction(MacroAssembler& masm, const wasm::OpBytes& op);
void saveProfile(uintptr_t codeBase, size_t codeSize, JS::UniqueChars& desc);
};
class BaselineInterpreterPerfSpewer : public PerfSpewer {
const char* CodeName(uint32_t op) override;
// Do nothing, BaselineInterpreter has no source to reference.
void saveJitCodeSourceInfo(JSScript* script, JitCode* code,
AutoLockPerfSpewer& lock) override {}
public:
void recordOffset(MacroAssembler& masm, const JSOp& op);
void recordOffset(MacroAssembler& masm, const char* name);
void saveProfile(JitCode* code);
};
class BaselinePerfSpewer : public PerfSpewer {
const char* CodeName(uint32_t op) override;
public:
void recordInstruction(MacroAssembler& masm, jsbytecode* pc,
CompilerFrameInfo& frame);
void saveProfile(JSContext* cx, JSScript* script, JitCode* code);
};
class InlineCachePerfSpewer : public PerfSpewer {
const char* CodeName(uint32_t op) override;
public:
void recordInstruction(MacroAssembler& masm, const CacheOp& op);
};
class BaselineICPerfSpewer : public InlineCachePerfSpewer {
void saveJitCodeSourceInfo(JSScript* script, JitCode* code,
AutoLockPerfSpewer& lock) override {
// Baseline IC stubs are shared and have no source code to reference.
return;
}
public:
void saveProfile(JitCode* code, const char* stubName);
};
class IonICPerfSpewer : public InlineCachePerfSpewer {
public:
explicit IonICPerfSpewer(jsbytecode* pc);
void saveJitCodeSourceInfo(JSScript* script, JitCode* code,
AutoLockPerfSpewer& lock) override;
void saveProfile(JSContext* cx, JSScript* script, JitCode* code,
const char* stubName);
};
class PerfSpewerRangeRecorder {
using OffsetPair = std::tuple<uint32_t, JS::UniqueChars>;
Vector<OffsetPair, 0, js::SystemAllocPolicy> ranges;
MacroAssembler& masm;
void appendEntry(JS::UniqueChars& desc);
public:
explicit PerfSpewerRangeRecorder(MacroAssembler& masm_) : masm(masm_) {};
void recordOffset(const char* name);
void recordOffset(const char* name, JSContext* cx, JSScript* script);
void recordVMWrapperOffset(const char* name);
void collectRangesForJitCode(JitCode* code);
};
} // namespace jit
} // namespace js
#endif /* jit_PerfSpewer_h */