LLVM 17.0.0git
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1//===------------- Disassembler.h - LLVM Disassembler -----------*- C++ -*-===//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
9// This file defines the interface for the Disassembly library's disassembler
10// context. The disassembler is responsible for producing strings for
11// individual instructions according to a given architecture and disassembly
12// syntax.
21#include "llvm/MC/MCAsmInfo.h"
22#include "llvm/MC/MCContext.h"
25#include "llvm/MC/MCInstrInfo.h"
29#include <string>
30#include <utility>
32namespace llvm {
33class Target;
36// This is the disassembler context returned by LLVMCreateDisasm().
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;
81 // Comment stream and backing vector.
85 LLVMDisasmContext(std::string TripleName, void *DisInfo, int TagType,
86 LLVMOpInfoCallback GetOpInfo,
87 LLVMSymbolLookupCallback SymbolLookUp,
88 const Target *TheTarget,
89 std::unique_ptr<const MCAsmInfo> &&MAI,
90 std::unique_ptr<const MCRegisterInfo> &&MRI,
91 std::unique_ptr<const MCSubtargetInfo> &&MSI,
92 std::unique_ptr<const MCInstrInfo> &&MII,
93 std::unique_ptr<const llvm::MCContext> &&Ctx,
94 std::unique_ptr<const MCDisassembler> &&DisAsm,
95 std::unique_ptr<MCInstPrinter> &&IP)
96 : TripleName(std::move(TripleName)), DisInfo(DisInfo), TagType(TagType),
97 GetOpInfo(GetOpInfo), SymbolLookUp(SymbolLookUp), TheTarget(TheTarget),
98 MAI(std::move(MAI)), MRI(std::move(MRI)), MSI(std::move(MSI)),
99 MII(std::move(MII)), Ctx(std::move(Ctx)), DisAsm(std::move(DisAsm)),
101 const std::string &getTripleName() const { return TripleName; }
102 void *getDisInfo() const { return DisInfo; }
103 int getTagType() const { return TagType; }
104 LLVMOpInfoCallback getGetOpInfo() const { return GetOpInfo; }
106 return SymbolLookUp;
107 }
108 const Target *getTarget() const { return TheTarget; }
109 const MCDisassembler *getDisAsm() const { return DisAsm.get(); }
110 const MCAsmInfo *getAsmInfo() const { return MAI.get(); }
111 const MCInstrInfo *getInstrInfo() const { return MII.get(); }
112 const MCRegisterInfo *getRegisterInfo() const { return MRI.get(); }
113 const MCSubtargetInfo *getSubtargetInfo() const { return MSI.get(); }
114 MCInstPrinter *getIP() { return IP.get(); }
115 void setIP(MCInstPrinter *NewIP) { IP.reset(NewIP); }
116 uint64_t getOptions() const { return Options; }
117 void addOptions(uint64_t Options) { this->Options |= Options; }
118 StringRef getCPU() const { return CPU; }
119 void setCPU(const char *CPU) { this->CPU = CPU; }
122} // namespace llvm
unsigned const MachineRegisterInfo * MRI
const char LLVMTargetMachineRef LLVMPassBuilderOptionsRef Options
This file defines the SmallString class.
@ Target
Definition: TextStubV5.cpp:91
const MCDisassembler * getDisAsm() const
Definition: Disassembler.h:109
void setCPU(const char *CPU)
Definition: Disassembler.h:119
void addOptions(uint64_t Options)
Definition: Disassembler.h:117
raw_svector_ostream CommentStream
Definition: Disassembler.h:83
void setIP(MCInstPrinter *NewIP)
Definition: Disassembler.h:115
LLVMSymbolLookupCallback getSymbolLookupCallback() const
Definition: Disassembler.h:105
const MCSubtargetInfo * getSubtargetInfo() const
Definition: Disassembler.h:113
const MCAsmInfo * getAsmInfo() const
Definition: Disassembler.h:110
LLVMOpInfoCallback getGetOpInfo() const
Definition: Disassembler.h:104
uint64_t getOptions() const
Definition: Disassembler.h:116
const MCRegisterInfo * getRegisterInfo() const
Definition: Disassembler.h:112
void * getDisInfo() const
Definition: Disassembler.h:102
SmallString< 128 > CommentsToEmit
Definition: Disassembler.h:82
MCInstPrinter * getIP()
Definition: Disassembler.h:114
StringRef getCPU() const
Definition: Disassembler.h:118
const MCInstrInfo * getInstrInfo() const
Definition: Disassembler.h:111
const Target * getTarget() const
Definition: Disassembler.h:108
LLVMDisasmContext(std::string TripleName, void *DisInfo, int TagType, LLVMOpInfoCallback GetOpInfo, LLVMSymbolLookupCallback SymbolLookUp, const Target *TheTarget, std::unique_ptr< const MCAsmInfo > &&MAI, std::unique_ptr< const MCRegisterInfo > &&MRI, std::unique_ptr< const MCSubtargetInfo > &&MSI, std::unique_ptr< const MCInstrInfo > &&MII, std::unique_ptr< const llvm::MCContext > &&Ctx, std::unique_ptr< const MCDisassembler > &&DisAsm, std::unique_ptr< MCInstPrinter > &&IP)
Definition: Disassembler.h:85
const std::string & getTripleName() const
Definition: Disassembler.h:101
This class is intended to be used as a base class for asm properties and features specific to the tar...
Definition: MCAsmInfo.h:56
Superclass for all disassemblers.
This is an instance of a target assembly language printer that converts an MCInst to valid target ass...
Definition: MCInstPrinter.h:44
Interface to description of machine instruction set.
Definition: MCInstrInfo.h:26
const MCInstrDesc & get(unsigned Opcode) const
Return the machine instruction descriptor that corresponds to the specified instruction opcode.
Definition: MCInstrInfo.h:63
MCRegisterInfo base class - We assume that the target defines a static array of MCRegisterDesc object...
Generic base class for all target subtargets.
SmallString - A SmallString is just a SmallVector with methods and accessors that make it work better...
Definition: SmallString.h:26
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
Target - Wrapper for Target specific information.
A raw_ostream that writes to an SmallVector or SmallString.
Definition: raw_ostream.h:672
const char *(* LLVMSymbolLookupCallback)(void *DisInfo, uint64_t ReferenceValue, uint64_t *ReferenceType, uint64_t ReferencePC, const char **ReferenceName)
The type for the symbol lookup function.
int(* LLVMOpInfoCallback)(void *DisInfo, uint64_t PC, uint64_t Offset, uint64_t OpSize, uint64_t InstSize, int TagType, void *TagBuf)
The type for the operand information call back function.
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
OutputIt move(R &&Range, OutputIt Out)
Provide wrappers to std::move which take ranges instead of having to pass begin/end explicitly.
Definition: STLExtras.h:1946
Definition: BitVector.h:858