1/* 2 * Copyright (C) 2013 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#include "config.h" 27#include "Disassembler.h" 28 29#if USE(ARMV7_DISASSEMBLER) 30 31#include "ARMv7/ARMv7DOpcode.h" 32#include "MacroAssemblerCodeRef.h" 33 34namespace JSC { 35 36bool tryToDisassemble(const MacroAssemblerCodePtr& codePtr, size_t size, const char* prefix, PrintStream& out, InstructionSubsetHint) 37{ 38 ARMv7DOpcode armOpcode; 39 40 uint16_t* currentPC = reinterpret_cast<uint16_t*>(reinterpret_cast<uintptr_t>(codePtr.executableAddress())&~1); 41 uint16_t* endPC = currentPC + (size / sizeof(uint16_t)); 42 43 while (currentPC < endPC) { 44 char pcString[12]; 45 snprintf(pcString, sizeof(pcString), "0x%x", reinterpret_cast<unsigned>(currentPC)); 46 out.printf("%s%10s: %s\n", prefix, pcString, armOpcode.disassemble(currentPC)); 47 } 48 49 return true; 50} 51 52} // namespace JSC 53 54#endif // USE(ARMV7_DISASSEMBLER) 55 56