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 <string> 22 #include "llvm/ADT/OwningPtr.h" 23 #include "llvm/ADT/SmallString.h" 24 #include "llvm/Support/raw_ostream.h" 25 26 namespace llvm { 27 class MCContext; 28 class MCAsmInfo; 29 class MCDisassembler; 30 class MCInstPrinter; 31 class MCRegisterInfo; 32 class Target; 33 34 // 35 // This is the disassembler context returned by LLVMCreateDisasm(). 36 // 37 class LLVMDisasmContext { 38 private: 39 // 40 // The passed parameters when the disassembler context is created. 41 // 42 // The TripleName for this disassembler. 43 std::string TripleName; 44 // The pointer to the caller's block of symbolic information. 45 void *DisInfo; 46 // The Triple specific symbolic information type returned by GetOpInfo. 47 int TagType; 48 // The function to get the symbolic information for operands. 49 LLVMOpInfoCallback GetOpInfo; 50 // The function to look up a symbol name. 51 LLVMSymbolLookupCallback SymbolLookUp; 52 // 53 // The objects created and saved by LLVMCreateDisasm() then used by 54 // LLVMDisasmInstruction(). 55 // 56 // The LLVM target corresponding to the disassembler. 57 // FIXME: using llvm::OwningPtr<const llvm::Target> causes a malloc error 58 // when this LLVMDisasmContext is deleted. 59 const Target *TheTarget; 60 // The assembly information for the target architecture. 61 llvm::OwningPtr<const llvm::MCAsmInfo> MAI; 62 // The register information for the target architecture. 63 llvm::OwningPtr<const llvm::MCRegisterInfo> MRI; 64 // The assembly context for creating symbols and MCExprs. 65 llvm::OwningPtr<const llvm::MCContext> Ctx; 66 // The disassembler for the target architecture. 67 llvm::OwningPtr<const llvm::MCDisassembler> DisAsm; 68 // The instruction printer for the target architecture. 69 llvm::OwningPtr<llvm::MCInstPrinter> IP; 70 71 public: 72 // Comment stream and backing vector. 73 SmallString<128> CommentsToEmit; 74 raw_svector_ostream CommentStream; 75 76 LLVMDisasmContext(std::string tripleName, void *disInfo, int tagType, 77 LLVMOpInfoCallback getOpInfo, 78 LLVMSymbolLookupCallback symbolLookUp, 79 const Target *theTarget, const MCAsmInfo *mAI, 80 const MCRegisterInfo *mRI, 81 llvm::MCContext *ctx, const MCDisassembler *disAsm, 82 MCInstPrinter *iP) : TripleName(tripleName), 83 DisInfo(disInfo), TagType(tagType), GetOpInfo(getOpInfo), 84 SymbolLookUp(symbolLookUp), TheTarget(theTarget), 85 CommentStream(CommentsToEmit) { 86 MAI.reset(mAI); 87 MRI.reset(mRI); 88 Ctx.reset(ctx); 89 DisAsm.reset(disAsm); 90 IP.reset(iP); 91 } 92 const MCDisassembler *getDisAsm() const { return DisAsm.get(); } 93 const MCAsmInfo *getAsmInfo() const { return MAI.get(); } 94 MCInstPrinter *getIP() { return IP.get(); } 95 }; 96 97 } // namespace llvm 98 99 #endif 100
