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Commit	Line	Data
	1	/*
	2	* Copyright (C) 2012 Apple Inc. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
	14	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
	17	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	18	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	19	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	20	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
	21	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	23	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#ifndef JITDisassembler_h
	27	#define JITDisassembler_h
	28
	29	#if ENABLE(JIT)
	30
	31	#include "MacroAssembler.h"
	32	#include <wtf/Vector.h>
	33	#include <wtf/text/CString.h>
	34
	35	namespace JSC {
	36
	37	class CodeBlock;
	38	class LinkBuffer;
	39
	40	namespace Profiler {
	41	class Compilation;
	42	}
	43
	44	class JITDisassembler {
	45	WTF_MAKE_FAST_ALLOCATED;
	46	public:
	47	JITDisassembler(CodeBlock*);
	48	~JITDisassembler();
	49
	50	void setStartOfCode(MacroAssembler::Label label) { m_startOfCode = label; }
	51	void setForBytecodeMainPath(unsigned bytecodeIndex, MacroAssembler::Label label)
	52	{
	53	m_labelForBytecodeIndexInMainPath[bytecodeIndex] = label;
	54	}
	55	void setForBytecodeSlowPath(unsigned bytecodeIndex, MacroAssembler::Label label)
	56	{
	57	m_labelForBytecodeIndexInSlowPath[bytecodeIndex] = label;
	58	}
	59	void setEndOfSlowPath(MacroAssembler::Label label) { m_endOfSlowPath = label; }
	60	void setEndOfCode(MacroAssembler::Label label) { m_endOfCode = label; }
	61
	62	void dump(LinkBuffer&);
	63	void dump(PrintStream&, LinkBuffer&);
	64	void reportToProfiler(Profiler::Compilation*, LinkBuffer&);
	65
	66	private:
	67	void dumpHeader(PrintStream&, LinkBuffer&);
	68	MacroAssembler::Label firstSlowLabel();
	69
	70	struct DumpedOp {
	71	unsigned index;
	72	CString disassembly;
	73	};
	74	Vector<DumpedOp> dumpVectorForInstructions(LinkBuffer&, const char* prefix, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel);
	75
	76	void dumpForInstructions(PrintStream&, LinkBuffer&, const char* prefix, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel);
	77	void reportInstructions(Profiler::Compilation, LinkBuffer&, const char prefix, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel);
	78
	79	void dumpDisassembly(PrintStream&, LinkBuffer&, MacroAssembler::Label from, MacroAssembler::Label to);
	80
	81	CodeBlock* m_codeBlock;
	82	MacroAssembler::Label m_startOfCode;
	83	Vector<MacroAssembler::Label> m_labelForBytecodeIndexInMainPath;
	84	Vector<MacroAssembler::Label> m_labelForBytecodeIndexInSlowPath;
	85	MacroAssembler::Label m_endOfSlowPath;
	86	MacroAssembler::Label m_endOfCode;
	87	};
	88
	89	} // namespace JSC
	90
	91	#endif // ENABLE(JIT)
	92
	93	#endif // JITDisassembler_h
	94