25ee6d666c
R=yangguo@chromium.org Review URL: https://codereview.chromium.org/1299563003 Cr-Commit-Position: refs/heads/master@{#30187}
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
// Copyright 2007-2008 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_DISASM_H_
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#define V8_DISASM_H_
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#include "src/utils.h"
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namespace disasm {
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typedef unsigned char byte;
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// Interface and default implementation for converting addresses and
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// register-numbers to text. The default implementation is machine
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// specific.
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class NameConverter {
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public:
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virtual ~NameConverter() {}
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virtual const char* NameOfCPURegister(int reg) const;
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virtual const char* NameOfByteCPURegister(int reg) const;
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virtual const char* NameOfXMMRegister(int reg) const;
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virtual const char* NameOfAddress(byte* addr) const;
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virtual const char* NameOfConstant(byte* addr) const;
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virtual const char* NameInCode(byte* addr) const;
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protected:
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v8::internal::EmbeddedVector<char, 128> tmp_buffer_;
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};
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// A generic Disassembler interface
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class Disassembler {
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public:
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// Caller deallocates converter.
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explicit Disassembler(const NameConverter& converter);
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virtual ~Disassembler();
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// Writes one disassembled instruction into 'buffer' (0-terminated).
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// Returns the length of the disassembled machine instruction in bytes.
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int InstructionDecode(v8::internal::Vector<char> buffer, byte* instruction);
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// Returns -1 if instruction does not mark the beginning of a constant pool,
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// or the number of entries in the constant pool beginning here.
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int ConstantPoolSizeAt(byte* instruction);
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// Write disassembly into specified file 'f' using specified NameConverter
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// (see constructor).
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static void Disassemble(FILE* f, byte* begin, byte* end);
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private:
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const NameConverter& converter_;
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DISALLOW_IMPLICIT_CONSTRUCTORS(Disassembler);
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};
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} // namespace disasm
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#endif // V8_DISASM_H_
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