mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-20 18:48:13 +00:00
76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
//===- lib/System/Disassembler.cpp ------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the necessary glue to call external disassembler
|
|
// libraries.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Config/config.h"
|
|
#include "llvm/System/Disassembler.h"
|
|
|
|
#include <cassert>
|
|
#include <iomanip>
|
|
#include <string>
|
|
#include <sstream>
|
|
|
|
#if USE_UDIS86
|
|
#include <udis86.h>
|
|
#endif
|
|
|
|
using namespace llvm;
|
|
|
|
bool llvm::sys::hasDisassembler(void)
|
|
{
|
|
#if defined (__i386__) || defined (__amd64__) || defined (__x86_64__)
|
|
// We have option to enable udis86 library.
|
|
return true;
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
std::string llvm::sys::disassembleBuffer(uint8_t* start, size_t length,
|
|
uint64_t pc) {
|
|
std::stringstream res;
|
|
|
|
#if defined (__i386__) || defined (__amd64__) || defined (__x86_64__)
|
|
unsigned bits;
|
|
# if defined(__i386__)
|
|
bits = 32;
|
|
# else
|
|
bits = 64;
|
|
# endif
|
|
|
|
# if USE_UDIS86
|
|
ud_t ud_obj;
|
|
|
|
ud_init(&ud_obj);
|
|
ud_set_input_buffer(&ud_obj, start, length);
|
|
ud_set_mode(&ud_obj, bits);
|
|
ud_set_pc(&ud_obj, pc);
|
|
ud_set_syntax(&ud_obj, UD_SYN_ATT);
|
|
|
|
res << std::setbase(16)
|
|
<< std::setw(bits/4);
|
|
|
|
while (ud_disassemble(&ud_obj)) {
|
|
res << ud_insn_off(&ud_obj) << ":\t" << ud_insn_asm(&ud_obj) << "\n";
|
|
}
|
|
# else
|
|
res << "No disassembler available. See configure help for options.\n";
|
|
# endif
|
|
|
|
#else
|
|
res << "No disassembler available. See configure help for options.\n";
|
|
#endif
|
|
|
|
return res.str();
|
|
}
|