disassembler/ARM64Disassembler.cpp

   1 /*
   2  * Copyright (C) 2012, 2014 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(ARM64_DISASSEMBLER)
  30
  31 #include "ARM64/A64DOpcode.h"
  32 #include "MacroAssemblerCodeRef.h"
  33
  34 namespace JSC {
  35
  36 bool tryToDisassemble(const MacroAssemblerCodePtr& codePtr, size_t size, const char* prefix, PrintStream& out, InstructionSubsetHint)
  37 {
  38     A64DOpcode arm64Opcode;
  39
  40     uint32_t* currentPC = reinterpret_cast<uint32_t*>(codePtr.executableAddress());
  41     size_t byteCount = size;
  42
  43     while (byteCount) {
  44         char pcString[20];
  45         snprintf(pcString, sizeof(pcString), "0x%lx", reinterpret_cast<unsigned long>(currentPC));
  46         out.printf("%s%16s: %s\n", prefix, pcString, arm64Opcode.disassemble(currentPC));
  47         currentPC++;
  48         byteCount -= sizeof(uint32_t);
  49     }
  50
  51     return true;
  52 }
  53
  54 } // namespace JSC
  55
  56 #endif // USE(ARM64_DISASSEMBLER)
  57
  58 #if USE(LLVM_DISASSEMBLER) && CPU(ARM64)
  59
  60 #include "LLVMDisassembler.h"
  61
  62 namespace JSC {
  63
  64 bool tryToDisassemble(const MacroAssemblerCodePtr& codePtr, size_t size, const char* prefix, PrintStream& out, InstructionSubsetHint hint)
  65 {
  66     return tryToDisassembleWithLLVM(codePtr, size, prefix, out, hint);
  67 }
  68
  69 } // namespace JSC
  70
  71 #endif // USE(LLVM_DISASSEMBLER) && CPU(ARM64)