/* * Copyright (C) 2012 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "Disassembler.h" #if USE(UDIS86) #include "MacroAssemblerCodeRef.h" #include "udis86.h" namespace JSC { bool tryToDisassemble(const MacroAssemblerCodePtr& codePtr, size_t size, const char* prefix, PrintStream& out) { ud_t disassembler; ud_init(&disassembler); ud_set_input_buffer(&disassembler, static_cast<unsigned char*>(codePtr.executableAddress()), size); #if CPU(X86_64) ud_set_mode(&disassembler, 64); #else ud_set_mode(&disassembler, 32); #endif ud_set_pc(&disassembler, bitwise_cast<uintptr_t>(codePtr.executableAddress())); ud_set_syntax(&disassembler, UD_SYN_ATT); uint64_t currentPC = disassembler.pc; while (ud_disassemble(&disassembler)) { char pcString[20]; snprintf(pcString, sizeof(pcString), "0x%lx", static_cast<unsigned long>(currentPC)); out.printf("%s%16s: %s\n", prefix, pcString, ud_insn_asm(&disassembler)); currentPC = disassembler.pc; } return true; } } // namespace JSC #endif // USE(UDIS86)