1// Copyright 2006-2008 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28#ifndef V8_DISASSEMBLER_H_ 29#define V8_DISASSEMBLER_H_ 30 31#include "allocation.h" 32 33namespace v8 { 34namespace internal { 35 36class Disassembler : public AllStatic { 37 public: 38 // Print the bytes in the interval [begin, end) into f. 39 static void Dump(FILE* f, byte* begin, byte* end); 40 41 // Decode instructions in the the interval [begin, end) and print the 42 // code into f. Returns the number of bytes disassembled or 1 if no 43 // instruction could be decoded. 44 static int Decode(FILE* f, byte* begin, byte* end); 45 46 // Decode instructions in code. 47 static void Decode(FILE* f, Code* code); 48 private: 49 // Decode instruction at pc and print disassembled instruction into f. 50 // Returns the instruction length in bytes, or 1 if the instruction could 51 // not be decoded. The number of characters written is written into 52 // the out parameter char_count. 53 static int Decode(FILE* f, byte* pc, int* char_count); 54}; 55 56} } // namespace v8::internal 57 58#endif // V8_DISASSEMBLER_H_ 59