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