BPFDisassembler.cpp File Reference

#include "MCTargetDesc/BPFMCTargetDesc.h"
#include "TargetInfo/BPFTargetInfo.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDecoder.h"
#include "llvm/MC/MCDecoderOps.h"
#include "llvm/MC/MCDisassembler/MCDisassembler.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/TargetParser/SubtargetFeature.h"
#include <cstdint>
#include "BPFGenDisassemblerTables.inc"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "bpf-disassembler"

Typedefs
typedef DecodeStatus(*	DecodeFunc) (MCInst &MI, unsigned insn, uint64_t Address, const MCDisassembler *Decoder)

Functions
static MCDisassembler *	createBPFDisassembler (const Target &T, const MCSubtargetInfo &STI, MCContext &Ctx)
LLVM_ABI LLVM_EXTERNAL_VISIBILITY void	LLVMInitializeBPFDisassembler ()
static DecodeStatus	DecodeGPRRegisterClass (MCInst &Inst, unsigned RegNo, uint64_t, const MCDisassembler *)
static DecodeStatus	DecodeGPR32RegisterClass (MCInst &Inst, unsigned RegNo, uint64_t, const MCDisassembler *)
static DecodeStatus	decodeMemoryOpValue (MCInst &Inst, unsigned Insn, uint64_t Address, const MCDisassembler *Decoder)
static DecodeStatus	readInstruction64 (ArrayRef< uint8_t > Bytes, uint64_t Address, uint64_t &Size, uint64_t &Insn, bool IsLittleEndian)

Variables
static const unsigned	GPRDecoderTable []
static const unsigned	GPR32DecoderTable []

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "bpf-disassembler"

Definition at line 31 of file BPFDisassembler.cpp.

Typedef Documentation

DecodeFunc

typedef DecodeStatus(* DecodeFunc) (MCInst &MI, unsigned insn, uint64_t Address, const MCDisassembler *Decoder)

Definition at line 214 of file BPFDisassembler.cpp.

Function Documentation

createBPFDisassembler()

MCDisassembler * createBPFDisassembler ( const Target & T, const MCSubtargetInfo & STI, MCContext & Ctx )

static

Definition at line 82 of file BPFDisassembler.cpp.

References T.

Referenced by LLVMInitializeBPFDisassembler().

DecodeGPR32RegisterClass()

DecodeStatus DecodeGPR32RegisterClass ( MCInst & Inst, unsigned RegNo, uint64_t , const MCDisassembler *  )

static

Definition at line 119 of file BPFDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, GPR32DecoderTable, Reg, and llvm::MCDisassembler::Success.

DecodeGPRRegisterClass()

DecodeStatus DecodeGPRRegisterClass ( MCInst & Inst, unsigned RegNo, uint64_t , const MCDisassembler *  )

static

Definition at line 103 of file BPFDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, GPRDecoderTable, Reg, and llvm::MCDisassembler::Success.

decodeMemoryOpValue()

DecodeStatus decodeMemoryOpValue ( MCInst & Inst, unsigned Insn, uint64_t Address, const MCDisassembler * Decoder )

static

Definition at line 129 of file BPFDisassembler.cpp.

References llvm::MCInst::addOperand(), llvm::MCOperand::createImm(), llvm::MCOperand::createReg(), llvm::MCDisassembler::Fail, GPRDecoderTable, llvm::Offset, llvm::SignExtend32(), and llvm::MCDisassembler::Success.

LLVMInitializeBPFDisassembler()

LLVM_ABI LLVM_EXTERNAL_VISIBILITY void LLVMInitializeBPFDisassembler

(

)

Definition at line 89 of file BPFDisassembler.cpp.

References createBPFDisassembler(), llvm::getTheBPFbeTarget(), llvm::getTheBPFleTarget(), llvm::getTheBPFTarget(), and llvm::TargetRegistry::RegisterMCDisassembler().

readInstruction64()

DecodeStatus readInstruction64 ( ArrayRef< uint8_t > Bytes, uint64_t Address, uint64_t & Size, uint64_t & Insn, bool IsLittleEndian )

static

Definition at line 144 of file BPFDisassembler.cpp.

References llvm::MCDisassembler::Fail, llvm::Hi, llvm::Lo, llvm::Make_64(), Size, llvm::ArrayRef< T >::size(), and llvm::MCDisassembler::Success.

Variable Documentation

GPR32DecoderTable

const unsigned GPR32DecoderTable[]

static

Initial value:

= {
    BPF::W0,  BPF::W1,  BPF::W2,  BPF::W3,  BPF::W4,  BPF::W5,
    BPF::W6,  BPF::W7,  BPF::W8,  BPF::W9,  BPF::W10, BPF::W11}

Definition at line 114 of file BPFDisassembler.cpp.

GPRDecoderTable

const unsigned GPRDecoderTable[]

static

Initial value:

= {
    BPF::R0,  BPF::R1,  BPF::R2,  BPF::R3,  BPF::R4,  BPF::R5,
    BPF::R6,  BPF::R7,  BPF::R8,  BPF::R9,  BPF::R10, BPF::R11}

Definition at line 99 of file BPFDisassembler.cpp.