1 //===- lib/Support/Disassembler.cpp -----------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the necessary glue to call external disassembler
13 //===----------------------------------------------------------------------===//
15 #include "llvm/Support/Disassembler.h"
16 #include "llvm/Config/config.h"
28 bool llvm::sys::hasDisassembler()
30 #if defined (__i386__) || defined (__amd64__) || defined (__x86_64__)
31 // We have option to enable udis86 library.
42 std::string llvm::sys::disassembleBuffer(uint8_t* start, size_t length,
44 std::stringstream res;
46 #if (defined (__i386__) || defined (__amd64__) || defined (__x86_64__)) \
49 # if defined(__i386__)
58 ud_set_input_buffer(&ud_obj, start, length);
59 ud_set_mode(&ud_obj, bits);
60 ud_set_pc(&ud_obj, pc);
61 ud_set_syntax(&ud_obj, UD_SYN_ATT);
63 res << std::setbase(16)
66 while (ud_disassemble(&ud_obj)) {
67 res << ud_insn_off(&ud_obj) << ":\t" << ud_insn_asm(&ud_obj) << "\n";
70 res << "No disassembler available. See configure help for options.\n";