1/*
2 * Copyright (C) 2012-2018 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 "A64DOpcode.h"
32#include "MacroAssemblerCodeRef.h"
33
34namespace JSC {
35
36bool tryToDisassemble(const MacroAssemblerCodePtr<DisassemblyPtrTag>& codePtr, size_t size, const char* prefix, PrintStream& out)
37{
38 A64DOpcode arm64Opcode;
39
40 uint32_t* currentPC = codePtr.untaggedExecutableAddress<uint32_t*>();
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