LLVM API Documentation

Classes | Defines | Typedefs | Enumerations | Functions
X86DisassemblerDecoder.h File Reference
#include "X86DisassemblerDecoderCommon.h"
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Classes

struct  InternalInstruction

Defines

#define INSTRUCTION_SPECIFIER_FIELDS   uint16_t operands;
#define INSTRUCTION_IDS   uint16_t instructionIDs;
#define modFromModRM(modRM)   (((modRM) & 0xc0) >> 6)
#define regFromModRM(modRM)   (((modRM) & 0x38) >> 3)
#define rmFromModRM(modRM)   ((modRM) & 0x7)
#define scaleFromSIB(sib)   (((sib) & 0xc0) >> 6)
#define indexFromSIB(sib)   (((sib) & 0x38) >> 3)
#define baseFromSIB(sib)   ((sib) & 0x7)
#define wFromREX(rex)   (((rex) & 0x8) >> 3)
#define rFromREX(rex)   (((rex) & 0x4) >> 2)
#define xFromREX(rex)   (((rex) & 0x2) >> 1)
#define bFromREX(rex)   ((rex) & 0x1)
#define rFromVEX2of3(vex)   (((~(vex)) & 0x80) >> 7)
#define xFromVEX2of3(vex)   (((~(vex)) & 0x40) >> 6)
#define bFromVEX2of3(vex)   (((~(vex)) & 0x20) >> 5)
#define mmmmmFromVEX2of3(vex)   ((vex) & 0x1f)
#define wFromVEX3of3(vex)   (((vex) & 0x80) >> 7)
#define vvvvFromVEX3of3(vex)   (((~(vex)) & 0x78) >> 3)
#define lFromVEX3of3(vex)   (((vex) & 0x4) >> 2)
#define ppFromVEX3of3(vex)   ((vex) & 0x3)
#define rFromVEX2of2(vex)   (((~(vex)) & 0x80) >> 7)
#define vvvvFromVEX2of2(vex)   (((~(vex)) & 0x78) >> 3)
#define lFromVEX2of2(vex)   (((vex) & 0x4) >> 2)
#define ppFromVEX2of2(vex)   ((vex) & 0x3)
#define REGS_8BIT
#define EA_BASES_16BIT
#define REGS_16BIT
#define EA_BASES_32BIT
#define REGS_32BIT
#define EA_BASES_64BIT
#define REGS_64BIT
#define REGS_MMX
#define REGS_XMM
#define REGS_YMM
#define REGS_SEGMENT
#define REGS_DEBUG
#define REGS_CONTROL
#define ALL_EA_BASES
#define ALL_SIB_BASES
#define ALL_REGS
#define ENTRY(x)   EA_BASE_##x,
#define ENTRY(x)   EA_REG_##x,
#define ENTRY(x)   SIB_INDEX_##x,
#define ENTRY(x)   SIB_BASE_##x,
#define ENTRY(x)   MODRM_REG_##x,

Typedefs

typedef uint8_t BOOL
typedef int(* byteReader_t )(const void *arg, uint8_t *byte, uint64_t address)
typedef void(* dlog_t )(void *arg, const char *log)

Enumerations

enum  EABase { EA_BASE_NONE }
enum  SIBIndex { SIB_INDEX_NONE }
enum  SIBBase { SIB_BASE_NONE }
enum  EADisplacement { EA_DISP_NONE, EA_DISP_8, EA_DISP_16, EA_DISP_32 }
enum  Reg
enum  SegmentOverride {
  SEG_OVERRIDE_NONE, SEG_OVERRIDE_CS, SEG_OVERRIDE_SS, SEG_OVERRIDE_DS,
  SEG_OVERRIDE_ES, SEG_OVERRIDE_FS, SEG_OVERRIDE_GS, SEG_OVERRIDE_max
}
enum  VEXLeadingOpcodeByte { VEX_LOB_0F = 0x1, VEX_LOB_0F38 = 0x2, VEX_LOB_0F3A = 0x3 }
enum  VEXPrefixCode { VEX_PREFIX_NONE = 0x0, VEX_PREFIX_66 = 0x1, VEX_PREFIX_F3 = 0x2, VEX_PREFIX_F2 = 0x3 }

Functions

int decodeInstruction (struct InternalInstruction *insn, byteReader_t reader, const void *readerArg, dlog_t logger, void *loggerArg, const void *miiArg, uint64_t startLoc, DisassemblerMode mode)
void x86DisassemblerDebug (const char *file, unsigned line, const char *s)
const char * x86DisassemblerGetInstrName (unsigned Opcode, const void *mii)

Define Documentation

#define ALL_EA_BASES
Value:
EA_BASES_16BIT      \
  EA_BASES_32BIT      \
  EA_BASES_64BIT

Definition at line 271 of file X86DisassemblerDecoder.h.

Referenced by translateRMMemory(), and translateRMRegister().

#define ALL_REGS
Value:
REGS_8BIT           \
  REGS_16BIT          \
  REGS_32BIT          \
  REGS_64BIT          \
  REGS_MMX            \
  REGS_XMM            \
  REGS_YMM            \
  REGS_SEGMENT        \
  REGS_DEBUG          \
  REGS_CONTROL        \
  ENTRY(RIP)

Definition at line 280 of file X86DisassemblerDecoder.h.

Referenced by translateRegister(), translateRMMemory(), and translateRMRegister().

#define ALL_SIB_BASES
Value:
REGS_32BIT          \
  REGS_64BIT

Definition at line 276 of file X86DisassemblerDecoder.h.

Referenced by translateRMMemory().

#define baseFromSIB (   sib)    ((sib) & 0x7)

Definition at line 42 of file X86DisassemblerDecoder.h.

Referenced by readSIB().

#define bFromREX (   rex)    ((rex) & 0x1)

Definition at line 46 of file X86DisassemblerDecoder.h.

Referenced by readModRM(), readOpcodeRegister(), and readSIB().

#define bFromVEX2of3 (   vex)    (((~(vex)) & 0x20) >> 5)

Definition at line 50 of file X86DisassemblerDecoder.h.

Referenced by readPrefixes().

#define EA_BASES_16BIT
Value:
ENTRY(BX_SI)          \
  ENTRY(BX_DI)          \
  ENTRY(BP_SI)          \
  ENTRY(BP_DI)          \
  ENTRY(SI)             \
  ENTRY(DI)             \
  ENTRY(BP)             \
  ENTRY(BX)             \
  ENTRY(R8W)            \
  ENTRY(R9W)            \
  ENTRY(R10W)           \
  ENTRY(R11W)           \
  ENTRY(R12W)           \
  ENTRY(R13W)           \
  ENTRY(R14W)           \
  ENTRY(R15W)

Definition at line 88 of file X86DisassemblerDecoder.h.

#define EA_BASES_32BIT
Value:
ENTRY(EAX)            \
  ENTRY(ECX)            \
  ENTRY(EDX)            \
  ENTRY(EBX)            \
  ENTRY(sib)            \
  ENTRY(EBP)            \
  ENTRY(ESI)            \
  ENTRY(EDI)            \
  ENTRY(R8D)            \
  ENTRY(R9D)            \
  ENTRY(R10D)           \
  ENTRY(R11D)           \
  ENTRY(R12D)           \
  ENTRY(R13D)           \
  ENTRY(R14D)           \
  ENTRY(R15D)

Definition at line 124 of file X86DisassemblerDecoder.h.

Referenced by translateRMMemory().

#define EA_BASES_64BIT
Value:
ENTRY(RAX)            \
  ENTRY(RCX)            \
  ENTRY(RDX)            \
  ENTRY(RBX)            \
  ENTRY(sib64)          \
  ENTRY(RBP)            \
  ENTRY(RSI)            \
  ENTRY(RDI)            \
  ENTRY(R8)             \
  ENTRY(R9)             \
  ENTRY(R10)            \
  ENTRY(R11)            \
  ENTRY(R12)            \
  ENTRY(R13)            \
  ENTRY(R14)            \
  ENTRY(R15)

Definition at line 160 of file X86DisassemblerDecoder.h.

Referenced by translateRMMemory().

#define ENTRY (   x)    EA_BASE_##x,

Definition at line 352 of file X86DisassemblerDecoder.h.

#define ENTRY (   x)    EA_REG_##x,

Definition at line 352 of file X86DisassemblerDecoder.h.

#define ENTRY (   x)    SIB_INDEX_##x,

Definition at line 352 of file X86DisassemblerDecoder.h.

#define ENTRY (   x)    SIB_BASE_##x,

Definition at line 352 of file X86DisassemblerDecoder.h.

#define ENTRY (   x)    MODRM_REG_##x,

Definition at line 352 of file X86DisassemblerDecoder.h.

#define indexFromSIB (   sib)    (((sib) & 0x38) >> 3)

Definition at line 41 of file X86DisassemblerDecoder.h.

Referenced by readSIB().

#define INSTRUCTION_IDS   uint16_t instructionIDs;

Definition at line 26 of file X86DisassemblerDecoder.h.

#define INSTRUCTION_SPECIFIER_FIELDS   uint16_t operands;

Definition at line 23 of file X86DisassemblerDecoder.h.

#define lFromVEX2of2 (   vex)    (((vex) & 0x4) >> 2)

Definition at line 59 of file X86DisassemblerDecoder.h.

Referenced by getID().

#define lFromVEX3of3 (   vex)    (((vex) & 0x4) >> 2)

Definition at line 54 of file X86DisassemblerDecoder.h.

Referenced by getID().

#define mmmmmFromVEX2of3 (   vex)    ((vex) & 0x1f)

Definition at line 51 of file X86DisassemblerDecoder.h.

Referenced by readOpcode().

#define modFromModRM (   modRM)    (((modRM) & 0xc0) >> 6)

Definition at line 37 of file X86DisassemblerDecoder.h.

Referenced by decode(), readModRM(), and readSIB().

#define ppFromVEX2of2 (   vex)    ((vex) & 0x3)

Definition at line 60 of file X86DisassemblerDecoder.h.

Referenced by getID(), and readPrefixes().

#define ppFromVEX3of3 (   vex)    ((vex) & 0x3)

Definition at line 55 of file X86DisassemblerDecoder.h.

Referenced by getID(), and readPrefixes().

#define regFromModRM (   modRM)    (((modRM) & 0x38) >> 3)

Definition at line 38 of file X86DisassemblerDecoder.h.

Referenced by readModRM().

#define REGS_16BIT
Value:
ENTRY(AX)           \
  ENTRY(CX)           \
  ENTRY(DX)           \
  ENTRY(BX)           \
  ENTRY(SP)           \
  ENTRY(BP)           \
  ENTRY(SI)           \
  ENTRY(DI)           \
  ENTRY(R8W)          \
  ENTRY(R9W)          \
  ENTRY(R10W)         \
  ENTRY(R11W)         \
  ENTRY(R12W)         \
  ENTRY(R13W)         \
  ENTRY(R14W)         \
  ENTRY(R15W)

Definition at line 106 of file X86DisassemblerDecoder.h.

#define REGS_32BIT
Value:
ENTRY(EAX)        \
  ENTRY(ECX)        \
  ENTRY(EDX)        \
  ENTRY(EBX)        \
  ENTRY(ESP)        \
  ENTRY(EBP)        \
  ENTRY(ESI)        \
  ENTRY(EDI)        \
  ENTRY(R8D)        \
  ENTRY(R9D)        \
  ENTRY(R10D)       \
  ENTRY(R11D)       \
  ENTRY(R12D)       \
  ENTRY(R13D)       \
  ENTRY(R14D)       \
  ENTRY(R15D)

Definition at line 142 of file X86DisassemblerDecoder.h.

#define REGS_64BIT
Value:
ENTRY(RAX)        \
  ENTRY(RCX)        \
  ENTRY(RDX)        \
  ENTRY(RBX)        \
  ENTRY(RSP)        \
  ENTRY(RBP)        \
  ENTRY(RSI)        \
  ENTRY(RDI)        \
  ENTRY(R8)         \
  ENTRY(R9)         \
  ENTRY(R10)        \
  ENTRY(R11)        \
  ENTRY(R12)        \
  ENTRY(R13)        \
  ENTRY(R14)        \
  ENTRY(R15)

Definition at line 178 of file X86DisassemblerDecoder.h.

#define REGS_8BIT
Value:
ENTRY(AL)           \
  ENTRY(CL)           \
  ENTRY(DL)           \
  ENTRY(BL)           \
  ENTRY(AH)           \
  ENTRY(CH)           \
  ENTRY(DH)           \
  ENTRY(BH)           \
  ENTRY(R8B)          \
  ENTRY(R9B)          \
  ENTRY(R10B)         \
  ENTRY(R11B)         \
  ENTRY(R12B)         \
  ENTRY(R13B)         \
  ENTRY(R14B)         \
  ENTRY(R15B)         \
  ENTRY(SPL)          \
  ENTRY(BPL)          \
  ENTRY(SIL)          \
  ENTRY(DIL)

Definition at line 66 of file X86DisassemblerDecoder.h.

#define REGS_CONTROL
Value:
ENTRY(CR0)          \
  ENTRY(CR1)          \
  ENTRY(CR2)          \
  ENTRY(CR3)          \
  ENTRY(CR4)          \
  ENTRY(CR5)          \
  ENTRY(CR6)          \
  ENTRY(CR7)          \
  ENTRY(CR8)

Definition at line 260 of file X86DisassemblerDecoder.h.

#define REGS_DEBUG
Value:
ENTRY(DR0)        \
  ENTRY(DR1)        \
  ENTRY(DR2)        \
  ENTRY(DR3)        \
  ENTRY(DR4)        \
  ENTRY(DR5)        \
  ENTRY(DR6)        \
  ENTRY(DR7)

Definition at line 250 of file X86DisassemblerDecoder.h.

#define REGS_MMX
Value:
ENTRY(MM0)      \
  ENTRY(MM1)      \
  ENTRY(MM2)      \
  ENTRY(MM3)      \
  ENTRY(MM4)      \
  ENTRY(MM5)      \
  ENTRY(MM6)      \
  ENTRY(MM7)

Definition at line 196 of file X86DisassemblerDecoder.h.

#define REGS_SEGMENT
Value:
ENTRY(ES)          \
  ENTRY(CS)          \
  ENTRY(SS)          \
  ENTRY(DS)          \
  ENTRY(FS)          \
  ENTRY(GS)

Definition at line 242 of file X86DisassemblerDecoder.h.

#define REGS_XMM
Value:
ENTRY(XMM0)     \
  ENTRY(XMM1)     \
  ENTRY(XMM2)     \
  ENTRY(XMM3)     \
  ENTRY(XMM4)     \
  ENTRY(XMM5)     \
  ENTRY(XMM6)     \
  ENTRY(XMM7)     \
  ENTRY(XMM8)     \
  ENTRY(XMM9)     \
  ENTRY(XMM10)    \
  ENTRY(XMM11)    \
  ENTRY(XMM12)    \
  ENTRY(XMM13)    \
  ENTRY(XMM14)    \
  ENTRY(XMM15)

Definition at line 206 of file X86DisassemblerDecoder.h.

Referenced by translateRMMemory().

#define REGS_YMM
Value:
ENTRY(YMM0)     \
  ENTRY(YMM1)     \
  ENTRY(YMM2)     \
  ENTRY(YMM3)     \
  ENTRY(YMM4)     \
  ENTRY(YMM5)     \
  ENTRY(YMM6)     \
  ENTRY(YMM7)     \
  ENTRY(YMM8)     \
  ENTRY(YMM9)     \
  ENTRY(YMM10)    \
  ENTRY(YMM11)    \
  ENTRY(YMM12)    \
  ENTRY(YMM13)    \
  ENTRY(YMM14)    \
  ENTRY(YMM15)

Definition at line 224 of file X86DisassemblerDecoder.h.

Referenced by translateRMMemory().

#define rFromREX (   rex)    (((rex) & 0x4) >> 2)

Definition at line 44 of file X86DisassemblerDecoder.h.

Referenced by readModRM().

#define rFromVEX2of2 (   vex)    (((~(vex)) & 0x80) >> 7)

Definition at line 57 of file X86DisassemblerDecoder.h.

Referenced by readPrefixes().

#define rFromVEX2of3 (   vex)    (((~(vex)) & 0x80) >> 7)

Definition at line 48 of file X86DisassemblerDecoder.h.

Referenced by readPrefixes().

#define rmFromModRM (   modRM)    ((modRM) & 0x7)

Definition at line 39 of file X86DisassemblerDecoder.h.

Referenced by readModRM().

#define scaleFromSIB (   sib)    (((sib) & 0xc0) >> 6)

Definition at line 40 of file X86DisassemblerDecoder.h.

Referenced by readSIB().

#define vvvvFromVEX2of2 (   vex)    (((~(vex)) & 0x78) >> 3)

Definition at line 58 of file X86DisassemblerDecoder.h.

Referenced by readVVVV().

#define vvvvFromVEX3of3 (   vex)    (((~(vex)) & 0x78) >> 3)

Definition at line 53 of file X86DisassemblerDecoder.h.

Referenced by readVVVV().

#define wFromREX (   rex)    (((rex) & 0x8) >> 3)

Definition at line 43 of file X86DisassemblerDecoder.h.

Referenced by readPrefixes().

#define wFromVEX3of3 (   vex)    (((vex) & 0x80) >> 7)

Definition at line 52 of file X86DisassemblerDecoder.h.

Referenced by readPrefixes().

#define xFromREX (   rex)    (((rex) & 0x2) >> 1)

Definition at line 45 of file X86DisassemblerDecoder.h.

Referenced by readSIB().

#define xFromVEX2of3 (   vex)    (((~(vex)) & 0x40) >> 6)

Definition at line 49 of file X86DisassemblerDecoder.h.

Referenced by readPrefixes().

Typedef Documentation

typedef uint8_t BOOL

Definition at line 393 of file X86DisassemblerDecoder.h.

typedef int(* byteReader_t)(const void *arg, uint8_t *byte, uint64_t address)

Definition at line 406 of file X86DisassemblerDecoder.h.

typedef void(* dlog_t)(void *arg, const char *log)

Definition at line 416 of file X86DisassemblerDecoder.h.

Enumeration Type Documentation

enum EABase
Enumerator:
EA_BASE_NONE 

Definition at line 299 of file X86DisassemblerDecoder.h.

enum EADisplacement
Enumerator:
EA_DISP_NONE 
EA_DISP_8 
EA_DISP_16 
EA_DISP_32 

Definition at line 341 of file X86DisassemblerDecoder.h.

enum Reg

Definition at line 351 of file X86DisassemblerDecoder.h.

enum SegmentOverride
Enumerator:
SEG_OVERRIDE_NONE 
SEG_OVERRIDE_CS 
SEG_OVERRIDE_SS 
SEG_OVERRIDE_DS 
SEG_OVERRIDE_ES 
SEG_OVERRIDE_FS 
SEG_OVERRIDE_GS 
SEG_OVERRIDE_max 

Definition at line 361 of file X86DisassemblerDecoder.h.

enum SIBBase
Enumerator:
SIB_BASE_NONE 

Definition at line 329 of file X86DisassemblerDecoder.h.

enum SIBIndex
Enumerator:
SIB_INDEX_NONE 

Definition at line 316 of file X86DisassemblerDecoder.h.

enum VEXLeadingOpcodeByte
Enumerator:
VEX_LOB_0F 
VEX_LOB_0F38 
VEX_LOB_0F3A 

Definition at line 376 of file X86DisassemblerDecoder.h.

enum VEXPrefixCode
Enumerator:
VEX_PREFIX_NONE 
VEX_PREFIX_66 
VEX_PREFIX_F3 
VEX_PREFIX_F2 

Definition at line 386 of file X86DisassemblerDecoder.h.

Function Documentation

int decodeInstruction ( struct InternalInstruction *  insn,
byteReader_t  reader,
const void *  readerArg,
dlog_t  logger,
void *  loggerArg,
const void *  miiArg,
uint64_t  startLoc,
DisassemblerMode  mode 
)

Definition at line 1639 of file X86DisassemblerDecoder.c.

References dbgprintf(), InternalInstruction::dlog, InternalInstruction::dlogArg, getID(), InternalInstruction::instructionID, InternalInstruction::length, logger(), llvm::LibFunc::memset, InternalInstruction::mode, InternalInstruction::numImmediatesConsumed, InternalInstruction::operands, InternalInstruction::reader, InternalInstruction::readerArg, InternalInstruction::readerCursor, readOpcode(), readOperands(), readPrefixes(), InternalInstruction::spec, and InternalInstruction::startLocation.

Referenced by llvm::X86Disassembler::X86GenericDisassembler::getInstruction().

void x86DisassemblerDebug ( const char *  file,
unsigned  line,
const char *  s 
)

Definition at line 38 of file X86Disassembler.cpp.

References llvm::dbgs().

const char* x86DisassemblerGetInstrName ( unsigned  Opcode,
const void *  mii 
)

Definition at line 44 of file X86Disassembler.cpp.

References llvm::MCInstrInfo::getName().

Referenced by getID().

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