diff options
Diffstat (limited to 'src/3rdparty/masm/disassembler/UDis86Disassembler.cpp')
| -rw-r--r-- | src/3rdparty/masm/disassembler/UDis86Disassembler.cpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/3rdparty/masm/disassembler/UDis86Disassembler.cpp b/src/3rdparty/masm/disassembler/UDis86Disassembler.cpp new file mode 100644 index 0000000000..63c235b920 --- /dev/null +++ b/src/3rdparty/masm/disassembler/UDis86Disassembler.cpp @@ -0,0 +1,63 @@ +/* + * 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) + |