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