MCDisassembler.cpp revision 263508 
1//===-- lib/MC/MCDisassembler.cpp - Disassembler interface ------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/MC/MCDisassembler.h"
11#include "llvm/MC/MCExternalSymbolizer.h"
12#include "llvm/Support/raw_ostream.h"
13
14using namespace llvm;
15
16MCDisassembler::~MCDisassembler() {
17}
18
19void
20MCDisassembler::setupForSymbolicDisassembly(
21    LLVMOpInfoCallback GetOpInfo,
22    LLVMSymbolLookupCallback SymbolLookUp,
23    void *DisInfo,
24    MCContext *Ctx,
25    OwningPtr<MCRelocationInfo> &RelInfo) {
26  this->GetOpInfo = GetOpInfo;
27  this->SymbolLookUp = SymbolLookUp;
28  this->DisInfo = DisInfo;
29  this->Ctx = Ctx;
30  assert(Ctx != 0 && "No MCContext given for symbolic disassembly");
31  if (!Symbolizer)
32    Symbolizer.reset(new MCExternalSymbolizer(*Ctx, RelInfo, GetOpInfo,
33                                              SymbolLookUp, DisInfo));
34}
35
36bool MCDisassembler::tryAddingSymbolicOperand(MCInst &Inst, int64_t Value,
37                                              uint64_t Address, bool IsBranch,
38                                              uint64_t Offset,
39                                              uint64_t InstSize) const {
40  raw_ostream &cStream = CommentStream ? *CommentStream : nulls();
41  if (Symbolizer)
42    return Symbolizer->tryAddingSymbolicOperand(Inst, cStream, Value, Address,
43                                                IsBranch, Offset, InstSize);
44  return false;
45}
46
47void MCDisassembler::tryAddingPcLoadReferenceComment(int64_t Value,
48                                                     uint64_t Address) const {
49  raw_ostream &cStream = CommentStream ? *CommentStream : nulls();
50  if (Symbolizer)
51    Symbolizer->tryAddingPcLoadReferenceComment(cStream, Value, Address);
52}
53
54void MCDisassembler::setSymbolizer(OwningPtr<MCSymbolizer> &Symzer) {
55  Symbolizer.reset(Symzer.take());
56}
57