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125 lines
5.1 KiB
C++
125 lines
5.1 KiB
C++
//===------------- Disassembler.h - LLVM Disassembler -----------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the interface for the Disassembly library's disassembler
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// context. The disassembler is responsible for producing strings for
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// individual instructions according to a given architecture and disassembly
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// syntax.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_MC_MCDISASSEMBLER_DISASSEMBLER_H
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#define LLVM_LIB_MC_MCDISASSEMBLER_DISASSEMBLER_H
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#include "llvm-c/Disassembler.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCDisassembler/MCDisassembler.h"
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#include "llvm/MC/MCInstPrinter.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCRegisterInfo.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/Support/raw_ostream.h"
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#include <string>
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#include <utility>
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namespace llvm {
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class Target;
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//
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// This is the disassembler context returned by LLVMCreateDisasm().
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//
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class LLVMDisasmContext {
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private:
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//
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// The passed parameters when the disassembler context is created.
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//
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// The TripleName for this disassembler.
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std::string TripleName;
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// The pointer to the caller's block of symbolic information.
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void *DisInfo;
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// The Triple specific symbolic information type returned by GetOpInfo.
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int TagType;
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// The function to get the symbolic information for operands.
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LLVMOpInfoCallback GetOpInfo;
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// The function to look up a symbol name.
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LLVMSymbolLookupCallback SymbolLookUp;
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//
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// The objects created and saved by LLVMCreateDisasm() then used by
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// LLVMDisasmInstruction().
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//
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// The LLVM target corresponding to the disassembler.
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// FIXME: using std::unique_ptr<const llvm::Target> causes a malloc error
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// when this LLVMDisasmContext is deleted.
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const Target *TheTarget;
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// The assembly information for the target architecture.
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std::unique_ptr<const llvm::MCAsmInfo> MAI;
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// The register information for the target architecture.
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std::unique_ptr<const llvm::MCRegisterInfo> MRI;
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// The subtarget information for the target architecture.
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std::unique_ptr<const llvm::MCSubtargetInfo> MSI;
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// The instruction information for the target architecture.
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std::unique_ptr<const llvm::MCInstrInfo> MII;
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// The assembly context for creating symbols and MCExprs.
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std::unique_ptr<const llvm::MCContext> Ctx;
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// The disassembler for the target architecture.
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std::unique_ptr<const llvm::MCDisassembler> DisAsm;
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// The instruction printer for the target architecture.
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std::unique_ptr<llvm::MCInstPrinter> IP;
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// The options used to set up the disassembler.
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uint64_t Options;
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// The CPU string.
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std::string CPU;
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public:
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// Comment stream and backing vector.
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SmallString<128> CommentsToEmit;
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raw_svector_ostream CommentStream;
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LLVMDisasmContext(std::string TripleName, void *DisInfo, int TagType,
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LLVMOpInfoCallback GetOpInfo,
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LLVMSymbolLookupCallback SymbolLookUp,
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const Target *TheTarget,
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std::unique_ptr<const MCAsmInfo> &&MAI,
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std::unique_ptr<const MCRegisterInfo> &&MRI,
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std::unique_ptr<const MCSubtargetInfo> &&MSI,
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std::unique_ptr<const MCInstrInfo> &&MII,
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std::unique_ptr<const llvm::MCContext> &&Ctx,
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std::unique_ptr<const MCDisassembler> &&DisAsm,
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std::unique_ptr<MCInstPrinter> &&IP)
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: TripleName(std::move(TripleName)), DisInfo(DisInfo), TagType(TagType),
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GetOpInfo(GetOpInfo), SymbolLookUp(SymbolLookUp), TheTarget(TheTarget),
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MAI(std::move(MAI)), MRI(std::move(MRI)), MSI(std::move(MSI)),
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MII(std::move(MII)), Ctx(std::move(Ctx)), DisAsm(std::move(DisAsm)),
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IP(std::move(IP)), Options(0), CommentStream(CommentsToEmit) {}
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const std::string &getTripleName() const { return TripleName; }
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void *getDisInfo() const { return DisInfo; }
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int getTagType() const { return TagType; }
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LLVMOpInfoCallback getGetOpInfo() const { return GetOpInfo; }
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LLVMSymbolLookupCallback getSymbolLookupCallback() const {
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return SymbolLookUp;
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}
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const Target *getTarget() const { return TheTarget; }
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const MCDisassembler *getDisAsm() const { return DisAsm.get(); }
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const MCAsmInfo *getAsmInfo() const { return MAI.get(); }
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const MCInstrInfo *getInstrInfo() const { return MII.get(); }
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const MCRegisterInfo *getRegisterInfo() const { return MRI.get(); }
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const MCSubtargetInfo *getSubtargetInfo() const { return MSI.get(); }
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MCInstPrinter *getIP() { return IP.get(); }
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void setIP(MCInstPrinter *NewIP) { IP.reset(NewIP); }
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uint64_t getOptions() const { return Options; }
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void addOptions(uint64_t Options) { this->Options |= Options; }
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StringRef getCPU() const { return CPU; }
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void setCPU(const char *CPU) { this->CPU = CPU; }
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};
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} // namespace llvm
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#endif
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