#include "Target/AArch64/Disassembler/AArch64Disassembler.h"

Inheritance diagram for llvm::AArch64Disassembler:

Public Member Functions
	AArch64Disassembler (const MCSubtargetInfo &STI, MCContext &Ctx, MCInstrInfo const *MCII)

	~AArch64Disassembler () override=default

MCDisassembler::DecodeStatus	getInstruction (MCInst &Instr, uint64_t &Size, ArrayRef< uint8_t > Bytes, uint64_t Address, raw_ostream &CStream) const override
	Returns the disassembly of a single instruction.

uint64_t	suggestBytesToSkip (ArrayRef< uint8_t > Bytes, uint64_t Address) const override
	Suggest a distance to skip in a buffer of data to find the next place to look for the start of an instruction.

Public Member Functions inherited from llvm::MCDisassembler
	MCDisassembler (const MCSubtargetInfo &STI, MCContext &Ctx)

virtual	~MCDisassembler ()

virtual DecodeStatus	getInstruction (MCInst &Instr, uint64_t &Size, ArrayRef< uint8_t > Bytes, uint64_t Address, raw_ostream &CStream) const =0
	Returns the disassembly of a single instruction.

virtual Expected< bool >	onSymbolStart (SymbolInfoTy &Symbol, uint64_t &Size, ArrayRef< uint8_t > Bytes, uint64_t Address) const
	Used to perform separate target specific disassembly for a particular symbol.

virtual uint64_t	suggestBytesToSkip (ArrayRef< uint8_t > Bytes, uint64_t Address) const
	Suggest a distance to skip in a buffer of data to find the next place to look for the start of an instruction.

bool	tryAddingSymbolicOperand (MCInst &Inst, int64_t Value, uint64_t Address, bool IsBranch, uint64_t Offset, uint64_t OpSize, uint64_t InstSize) const

void	tryAddingPcLoadReferenceComment (int64_t Value, uint64_t Address) const

void	setSymbolizer (std::unique_ptr< MCSymbolizer > Symzer)
	Set `Symzer` as the current symbolizer.

MCContext &	getContext () const

const MCSubtargetInfo &	getSubtargetInfo () const

virtual void	setABIVersion (unsigned Version)
	ELF-specific, set the ABI version from the object header.

Additional Inherited Members
Public Types inherited from llvm::MCDisassembler
enum	DecodeStatus { Fail = 0 , SoftFail = 1 , Success = 3 }
	Ternary decode status. More...

Public Attributes inherited from llvm::MCDisassembler
raw_ostream *	CommentStream = nullptr

Protected Attributes inherited from llvm::MCDisassembler
const MCSubtargetInfo &	STI

std::unique_ptr< MCSymbolizer >	Symbolizer

Detailed Description

Definition at line 20 of file AArch64Disassembler.h.

Constructor & Destructor Documentation

◆ AArch64Disassembler()

llvm::AArch64Disassembler::AArch64Disassembler	(	const MCSubtargetInfo &	STI,
		MCContext &	Ctx,
		MCInstrInfo const *	MCII
	)

inline

Definition at line 24 of file AArch64Disassembler.h.

◆ ~AArch64Disassembler()

llvm::AArch64Disassembler::~AArch64Disassembler ( )

overridedefault

Member Function Documentation

◆ getInstruction()

DecodeStatus AArch64Disassembler::getInstruction	(	MCInst &	Instr,
		uint64_t &	Size,
		ArrayRef< uint8_t >	Bytes,
		uint64_t	Address,
		raw_ostream &	CStream
	)		const

overridevirtual

Returns the disassembly of a single instruction.

Parameters

Instr	- An MCInst to populate with the contents of the instruction.
Size	- A value to populate with the size of the instruction, or the number of bytes consumed while attempting to decode an invalid instruction.
Address	- The address, in the memory space of region, of the first byte of the instruction.
Bytes	- A reference to the actual bytes of the instruction.
CStream	- The stream to print comments and annotations on.

Returns: - MCDisassembler::Success if the instruction is valid, MCDisassembler::SoftFail if the instruction was disassemblable but invalid, MCDisassembler::Fail if the instruction was invalid.

Implements llvm::MCDisassembler.

Definition at line 231 of file AArch64Disassembler.cpp.

References llvm::Address, assert(), llvm::MCDisassembler::CommentStream, llvm::MCOperand::createImm(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, Insn, llvm::MCOperand::isImm(), MI, llvm::AArch64::OPERAND_IMPLICIT_IMM_0, llvm::MCOI::OPERAND_REGISTER, llvm::ArrayRef< T >::size(), Size, and llvm::MCDisassembler::STI.

◆ suggestBytesToSkip()

uint64_t AArch64Disassembler::suggestBytesToSkip	(	ArrayRef< uint8_t >	Bytes,
		uint64_t	Address
	)		const

overridevirtual

Suggest a distance to skip in a buffer of data to find the next place to look for the start of an instruction.

For example, if all instructions have a fixed alignment, this might advance to the next multiple of that alignment.

If not overridden, the default is 1.

Parameters

Address - The address, in the memory space of region, of the starting point (typically the first byte of something that did not decode as a valid instruction at all).

Bytes - A reference to the actual bytes at Address. May be needed in order to determine the width of an unrecognized instruction (e.g. in Thumb this is a simple consistent criterion that doesn't require knowing the specific instruction). The caller can pass as much data as they have available, and the function is required to make a reasonable default choice if not enough data is available to make a better one.

Returns: - A number of bytes to skip. Must always be greater than zero. May be greater than the size of Bytes.

Reimplemented from llvm::MCDisassembler.

Definition at line 296 of file AArch64Disassembler.cpp.

The documentation for this class was generated from the following files:

lib/Target/AArch64/Disassembler/AArch64Disassembler.h
lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp

Public Member Functions