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https://github.com/c64scene-ar/llvm-6502.git
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8cd4c3e653
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33358 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
//===- lib/Support/Disassembler.cpp -----------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Anton Korobeynikov and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the necessary glue to call external disassembler
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// libraries.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Config/config.h"
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#include "llvm/Support/Disassembler.h"
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#include <cassert>
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#include <iomanip>
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#include <string>
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#include <sstream>
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#if USE_UDIS86
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#include <udis86.h>
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#endif
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using namespace llvm;
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std::string llvm::disassembleBuffer(uint8_t* start, size_t length,
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Disassembler::Type type, uint64_t pc) {
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std::stringstream res;
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if (type == Disassembler::X86_32 || type == Disassembler::X86_64) {
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#if USE_UDIS86
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ud_t ud_obj;
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ud_init(&ud_obj);
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ud_set_input_buffer(&ud_obj, start, length);
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ud_set_mode(&ud_obj, (type == Disassembler::X86_32 ? 32 : 64));
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ud_set_pc(&ud_obj, pc);
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ud_set_syntax(&ud_obj, UD_SYN_ATT);
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res << std::setbase(16)
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<< std::setw((type == Disassembler::X86_32 ? 8 : 16));
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while (ud_disassemble(&ud_obj)) {
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res << ud_insn_off(&ud_obj) << ":\t" << ud_insn_asm(&ud_obj) << "\n";
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}
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#endif
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}
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return res.str();
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}
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