WebKit/Source/JavaScriptCore/jit/JITDisassembler.h at main · WebKit/WebKit · GitHub

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* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. 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.

* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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

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#pragma once

#include <wtf/Platform.h>

#if ENABLE(JIT)

#include <JavaScriptCore/BytecodeIndex.h>

#include <JavaScriptCore/MacroAssembler.h>

#include <wtf/TZoneMalloc.h>

#include <wtf/Vector.h>

#include <wtf/text/CString.h>

namespace JSC {

class CodeBlock;

class LinkBuffer;

namespace Profiler {

class Compilation;

}

class JITDisassembler {

WTF_MAKE_TZONE_ALLOCATED(JITDisassembler);

public:

JITDisassembler(CodeBlock*);

~JITDisassembler();

void setStartOfCode(MacroAssembler::Label label) { m_startOfCode = label; }

void setForBytecodeMainPath(unsigned bytecodeIndex, MacroAssembler::Label label, const CString& string = CString())

{

m_labelForBytecodeIndexInMainPath[bytecodeIndex] = std::make_pair(label, string);

}

void setForBytecodeSlowPath(unsigned bytecodeIndex, MacroAssembler::Label label, const CString& string = CString())

{

m_labelForBytecodeIndexInSlowPath[bytecodeIndex] = std::make_pair(label, string);

}

void setEndOfSlowPath(MacroAssembler::Label label) { m_endOfSlowPath = label; }

void setEndOfCode(MacroAssembler::Label label) { m_endOfCode = label; }

void dump(LinkBuffer&);

void dump(PrintStream&, LinkBuffer&);

void reportToProfiler(Profiler::Compilation*, LinkBuffer&);

private:

void NODELETE setLinkedStartAndEnd(const LinkBuffer&);

void dumpHeader(PrintStream&, LinkBuffer&);

MacroAssembler::Label NODELETE firstSlowLabel();

struct DumpedOp {

BytecodeIndex bytecodeIndex;

CString disassembly;

};

Vector<DumpedOp> dumpVectorForInstructions(LinkBuffer&, const char* prefix, Vector<std::pair<MacroAssembler::Label, CString>>& labels, MacroAssembler::Label endLabel);

void dumpForInstructions(PrintStream&, LinkBuffer&, const char* prefix, Vector<std::pair<MacroAssembler::Label, CString>>& labels, MacroAssembler::Label endLabel);

void reportInstructions(Profiler::Compilation*, LinkBuffer&, const char* prefix, Vector<std::pair<MacroAssembler::Label, CString>>& labels, MacroAssembler::Label endLabel);

void dumpDisassembly(PrintStream&, LinkBuffer&, MacroAssembler::Label from, MacroAssembler::Label to);

CodeBlock* const m_codeBlock;

MacroAssembler::Label m_startOfCode;

Vector<std::pair<MacroAssembler::Label, CString>> m_labelForBytecodeIndexInMainPath;

Vector<std::pair<MacroAssembler::Label, CString>> m_labelForBytecodeIndexInSlowPath;

MacroAssembler::Label m_endOfSlowPath;

MacroAssembler::Label m_endOfCode;

void* m_codeStart { nullptr };

void* m_codeEnd { nullptr };

};

} // namespace JSC

#endif // ENABLE(JIT)

WebKit/Source/JavaScriptCore/jit/JITDisassembler.h at main · WebKit/WebKit · GitHub

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