lib/MC/MCDisassembler.cpp

   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
  14 using namespace llvm;
  15
  16 MCDisassembler::~MCDisassembler() {
  17 }
  18
  19 void
  20 MCDisassembler::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
  36 void
  37 MCDisassembler::setupForSymbolicDisassembly(
  38     LLVMOpInfoCallback GetOpInfo,
  39     LLVMSymbolLookupCallback SymbolLookUp,
  40     void *DisInfo,
  41     MCContext *Ctx,
  42     std::unique_ptr<MCRelocationInfo> &RelInfo) {
  43   OwningPtr<MCRelocationInfo> MCRI;
  44   setupForSymbolicDisassembly(GetOpInfo, SymbolLookUp, DisInfo, Ctx, MCRI);
  45   RelInfo = MCRI.take_unique();
  46 }
  47
  48 bool MCDisassembler::tryAddingSymbolicOperand(MCInst &Inst, int64_t Value,
  49                                               uint64_t Address, bool IsBranch,
  50                                               uint64_t Offset,
  51                                               uint64_t InstSize) const {
  52   raw_ostream &cStream = CommentStream ? *CommentStream : nulls();
  53   if (Symbolizer)
  54     return Symbolizer->tryAddingSymbolicOperand(Inst, cStream, Value, Address,
  55                                                 IsBranch, Offset, InstSize);
  56   return false;
  57 }
  58
  59 void MCDisassembler::tryAddingPcLoadReferenceComment(int64_t Value,
  60                                                      uint64_t Address) const {
  61   raw_ostream &cStream = CommentStream ? *CommentStream : nulls();
  62   if (Symbolizer)
  63     Symbolizer->tryAddingPcLoadReferenceComment(cStream, Value, Address);
  64 }
  65
  66 void MCDisassembler::setSymbolizer(OwningPtr<MCSymbolizer> &Symzer) {
  67   Symbolizer.reset(Symzer.release());
  68 }