Disassembler.h revision 263508 
1228990Suqs//===------------- Disassembler.h - LLVM Disassembler -----------*- C++ -*-===//
2228990Suqs//
3228990Suqs//                     The LLVM Compiler Infrastructure
4422Sjkh//
5422Sjkh// This file is distributed under the University of Illinois Open Source
6422Sjkh// License. See LICENSE.TXT for details.
74996Sjkh//
84996Sjkh//===----------------------------------------------------------------------===//
97998Sjkh//
107998Sjkh// This file defines the interface for the Disassembly library's disassembler
11// context.  The disassembler is responsible for producing strings for
12// individual instructions according to a given architecture and disassembly
13// syntax.
14//
15//===----------------------------------------------------------------------===//
16
17#ifndef LLVM_MC_DISASSEMBLER_H
18#define LLVM_MC_DISASSEMBLER_H
19
20#include "llvm-c/Disassembler.h"
21#include "llvm/ADT/OwningPtr.h"
22#include "llvm/ADT/SmallString.h"
23#include "llvm/Support/raw_ostream.h"
24#include <string>
25
26namespace llvm {
27class MCContext;
28class MCAsmInfo;
29class MCDisassembler;
30class MCInstPrinter;
31class MCInstrInfo;
32class MCRegisterInfo;
33class MCSubtargetInfo;
34class Target;
35
36//
37// This is the disassembler context returned by LLVMCreateDisasm().
38//
39class LLVMDisasmContext {
40private:
41  //
42  // The passed parameters when the disassembler context is created.
43  //
44  // The TripleName for this disassembler.
45  std::string TripleName;
46  // The pointer to the caller's block of symbolic information.
47  void *DisInfo;
48  // The Triple specific symbolic information type returned by GetOpInfo.
49  int TagType;
50  // The function to get the symbolic information for operands.
51  LLVMOpInfoCallback GetOpInfo;
52  // The function to look up a symbol name.
53  LLVMSymbolLookupCallback SymbolLookUp;
54  //
55  // The objects created and saved by LLVMCreateDisasm() then used by
56  // LLVMDisasmInstruction().
57  //
58  // The LLVM target corresponding to the disassembler.
59  // FIXME: using llvm::OwningPtr<const llvm::Target> causes a malloc error
60  //        when this LLVMDisasmContext is deleted.
61  const Target *TheTarget;
62  // The assembly information for the target architecture.
63  llvm::OwningPtr<const llvm::MCAsmInfo> MAI;
64  // The register information for the target architecture.
65  llvm::OwningPtr<const llvm::MCRegisterInfo> MRI;
66  // The subtarget information for the target architecture.
67  llvm::OwningPtr<const llvm::MCSubtargetInfo> MSI;
68  // The instruction information for the target architecture.
69  llvm::OwningPtr<const llvm::MCInstrInfo> MII;
70  // The assembly context for creating symbols and MCExprs.
71  llvm::OwningPtr<const llvm::MCContext> Ctx;
72  // The disassembler for the target architecture.
73  llvm::OwningPtr<const llvm::MCDisassembler> DisAsm;
74  // The instruction printer for the target architecture.
75  llvm::OwningPtr<llvm::MCInstPrinter> IP;
76  // The options used to set up the disassembler.
77  uint64_t Options;
78  // The CPU string.
79  std::string CPU;
80
81public:
82  // Comment stream and backing vector.
83  SmallString<128> CommentsToEmit;
84  raw_svector_ostream CommentStream;
85
86  LLVMDisasmContext(std::string tripleName, void *disInfo, int tagType,
87                    LLVMOpInfoCallback getOpInfo,
88                    LLVMSymbolLookupCallback symbolLookUp,
89                    const Target *theTarget, const MCAsmInfo *mAI,
90                    const MCRegisterInfo *mRI,
91                    const MCSubtargetInfo *mSI,
92                    const MCInstrInfo *mII,
93                    llvm::MCContext *ctx, const MCDisassembler *disAsm,
94                    MCInstPrinter *iP) : TripleName(tripleName),
95                    DisInfo(disInfo), TagType(tagType), GetOpInfo(getOpInfo),
96                    SymbolLookUp(symbolLookUp), TheTarget(theTarget),
97                    Options(0),
98                    CommentStream(CommentsToEmit) {
99    MAI.reset(mAI);
100    MRI.reset(mRI);
101    MSI.reset(mSI);
102    MII.reset(mII);
103    Ctx.reset(ctx);
104    DisAsm.reset(disAsm);
105    IP.reset(iP);
106  }
107  const std::string &getTripleName() const { return TripleName; }
108  void *getDisInfo() const { return DisInfo; }
109  int getTagType() const { return TagType; }
110  LLVMOpInfoCallback getGetOpInfo() const { return GetOpInfo; }
111  LLVMSymbolLookupCallback getSymbolLookupCallback() const {
112    return SymbolLookUp;
113  }
114  const Target *getTarget() const { return TheTarget; }
115  const MCDisassembler *getDisAsm() const { return DisAsm.get(); }
116  const MCAsmInfo *getAsmInfo() const { return MAI.get(); }
117  const MCInstrInfo *getInstrInfo() const { return MII.get(); }
118  const MCRegisterInfo *getRegisterInfo() const { return MRI.get(); }
119  const MCSubtargetInfo *getSubtargetInfo() const { return MSI.get(); }
120  MCInstPrinter *getIP() { return IP.get(); }
121  void setIP(MCInstPrinter *NewIP) { IP.reset(NewIP); }
122  uint64_t getOptions() const { return Options; }
123  void addOptions(uint64_t Options) { this->Options |= Options; }
124  StringRef getCPU() const { return CPU; }
125  void setCPU(const char *CPU) { this->CPU = CPU; }
126};
127
128} // namespace llvm
129
130#endif
131