llvm::Win64EH Namespace Reference

Classes
class	ARM64UnwindEmitter
class	ARMUnwindEmitter
struct	DecodedEpilogV3
	Decoded V3 epilog descriptor. More...
struct	DecodedUnwindInfoV3
	Decoded V3 UNWIND_INFO. More...
struct	DecodedWOD
	Decoded V3 Winding Operation Descriptor. More...
struct	Instruction
struct	RuntimeFunction
	RuntimeFunction - An entry in the table of functions with unwind info. More...
union	UnwindCode
	UnwindCode - This union describes a single operation in a function prolog, or part thereof. More...
class	UnwindEmitter
struct	UnwindInfo
	UnwindInfo - An entry in the exception table. More...

Enumerations
enum	UnwindOpcodes {   UOP_PushNonVol = 0 , UOP_AllocLarge , UOP_AllocSmall , UOP_SetFPReg ,   UOP_SaveNonVol , UOP_SaveNonVolBig , UOP_Epilog , UOP_SpareCode ,   UOP_SaveXMM128 , UOP_SaveXMM128Big , UOP_PushMachFrame , UOP_AllocMedium ,   UOP_SaveR19R20X , UOP_SaveFPLRX , UOP_SaveFPLR , UOP_SaveReg ,   UOP_SaveRegX , UOP_SaveRegP , UOP_SaveRegPX , UOP_SaveLRPair ,   UOP_SaveFReg , UOP_SaveFRegX , UOP_SaveFRegP , UOP_SaveFRegPX ,   UOP_SetFP , UOP_AddFP , UOP_Nop , UOP_End ,   UOP_SaveNext , UOP_TrapFrame , UOP_Context , UOP_ECContext ,   UOP_ClearUnwoundToCall , UOP_PACSignLR , UOP_SaveAnyRegI , UOP_SaveAnyRegIP ,   UOP_SaveAnyRegD , UOP_SaveAnyRegDP , UOP_SaveAnyRegQ , UOP_SaveAnyRegQP ,   UOP_SaveAnyRegIX , UOP_SaveAnyRegIPX , UOP_SaveAnyRegDX , UOP_SaveAnyRegDPX ,   UOP_SaveAnyRegQX , UOP_SaveAnyRegQPX , UOP_AllocZ , UOP_SaveZReg ,   UOP_SavePReg , UOP_AllocHuge , UOP_WideAllocMedium , UOP_WideAllocLarge ,   UOP_WideAllocHuge , UOP_WideSaveRegMask , UOP_SaveSP , UOP_SaveRegsR4R7LR ,   UOP_WideSaveRegsR4R11LR , UOP_SaveFRegD8D15 , UOP_SaveRegMask , UOP_SaveLR ,   UOP_SaveFRegD0D15 , UOP_SaveFRegD16D31 , UOP_WideNop , UOP_EndNop ,   UOP_WideEndNop , UOP_Custom , UOP_Push2 }
	UnwindOpcodes - Enumeration whose values specify a single operation in the prolog of a function. More...
enum	{ UNW_ExceptionHandler = 0x01 , UNW_TerminateHandler = 0x02 , UNW_ChainInfo = 0x04 , UNW_FlagLarge = 0x08 }
enum	WODOpcode : uint8_t {   WOD_SET_FPREG = 0 , WOD_ALLOC_HUGE = 1 , WOD_ALLOC_LARGE = 2 , WOD_PUSH_CANONICAL_FRAME = 3 ,   WOD_PUSH = 4 , WOD_SAVE_NONVOL_FAR = 5 , WOD_SAVE_NONVOL = 6 , WOD_PUSH_CONSECUTIVE_2 = 7 ,   WOD_ALLOC_SMALL = 8 , WOD_SAVE_XMM128_FAR = 9 , WOD_SAVE_XMM128 = 10 , WOD_PUSH2 = 32 }
	V3 Winding Operation Descriptor opcodes. More...
enum	EpilogInfoFlagsV3 : uint8_t { EPILOG_PARENT_FRAGMENT_TRANSFER = 0x01 , EPILOG_INFO_LARGE = 0x02 }
	V3 EPILOG_INFO flags. More...

Functions
StringRef	getRegisterNameV3 (unsigned Reg)
	Return the register name for a 5-bit AMD64 integer register number.
Expected< DecodedWOD >	decodeWOD (ArrayRef< uint8_t > Pool, unsigned Offset)
	Decode one WOD from the pool at the given byte offset.
Expected< DecodedUnwindInfoV3 >	decodeUnwindInfoV3 (ArrayRef< uint8_t > Data)
	Parse a V3 UNWIND_INFO from raw bytes.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
UNW_ExceptionHandler	UNW_ExceptionHandler - Specifies that this function has an exception handler.
UNW_TerminateHandler	UNW_TerminateHandler - Specifies that this function has a termination handler.
UNW_ChainInfo	UNW_ChainInfo - Specifies that this UnwindInfo structure is chained to another one.
UNW_FlagLarge	UNW_FlagLarge - V3 only. When set, the header is 5 bytes (an extra UNWIND_INFO_LARGE_V3 byte follows), SizeOfProlog extends to 16 bits, and prolog IP offset entries are 16-bit.

Definition at line 145 of file Win64EH.h.

EpilogInfoFlagsV3

enum llvm::Win64EH::EpilogInfoFlagsV3 : uint8_t

V3 EPILOG_INFO flags.

Enumerator
EPILOG_PARENT_FRAGMENT_TRANSFER
EPILOG_INFO_LARGE	When set, the extended descriptor uses EPILOG_INFO_LARGE_EX_V3 (16-bit IpOffsetOfLastInstruction) and the IP offset array uses 16-bit entries.

Definition at line 257 of file Win64EH.h.

UnwindOpcodes

enum llvm::Win64EH::UnwindOpcodes

UnwindOpcodes - Enumeration whose values specify a single operation in the prolog of a function.

Enumerator
UOP_PushNonVol
UOP_AllocLarge
UOP_AllocSmall
UOP_SetFPReg
UOP_SaveNonVol
UOP_SaveNonVolBig
UOP_Epilog
UOP_SpareCode
UOP_SaveXMM128
UOP_SaveXMM128Big
UOP_PushMachFrame
UOP_AllocMedium
UOP_SaveR19R20X
UOP_SaveFPLRX
UOP_SaveFPLR
UOP_SaveReg
UOP_SaveRegX
UOP_SaveRegP
UOP_SaveRegPX
UOP_SaveLRPair
UOP_SaveFReg
UOP_SaveFRegX
UOP_SaveFRegP
UOP_SaveFRegPX
UOP_SetFP
UOP_AddFP
UOP_Nop
UOP_End
UOP_SaveNext
UOP_TrapFrame
UOP_Context
UOP_ECContext
UOP_ClearUnwoundToCall
UOP_PACSignLR
UOP_SaveAnyRegI
UOP_SaveAnyRegIP
UOP_SaveAnyRegD
UOP_SaveAnyRegDP
UOP_SaveAnyRegQ
UOP_SaveAnyRegQP
UOP_SaveAnyRegIX
UOP_SaveAnyRegIPX
UOP_SaveAnyRegDX
UOP_SaveAnyRegDPX
UOP_SaveAnyRegQX
UOP_SaveAnyRegQPX
UOP_AllocZ
UOP_SaveZReg
UOP_SavePReg
UOP_AllocHuge
UOP_WideAllocMedium
UOP_WideAllocLarge
UOP_WideAllocHuge
UOP_WideSaveRegMask
UOP_SaveSP
UOP_SaveRegsR4R7LR
UOP_WideSaveRegsR4R11LR
UOP_SaveFRegD8D15
UOP_SaveRegMask
UOP_SaveLR
UOP_SaveFRegD0D15
UOP_SaveFRegD16D31
UOP_WideNop
UOP_EndNop
UOP_WideEndNop
UOP_Custom
UOP_Push2

Definition at line 30 of file Win64EH.h.

WODOpcode

enum llvm::Win64EH::WODOpcode : uint8_t

V3 Winding Operation Descriptor opcodes.

Enumerator
WOD_SET_FPREG
WOD_ALLOC_HUGE
WOD_ALLOC_LARGE
WOD_PUSH_CANONICAL_FRAME
WOD_PUSH
WOD_SAVE_NONVOL_FAR
WOD_SAVE_NONVOL
WOD_PUSH_CONSECUTIVE_2
WOD_ALLOC_SMALL
WOD_SAVE_XMM128_FAR
WOD_SAVE_XMM128
WOD_PUSH2

Definition at line 241 of file Win64EH.h.

Function Documentation

decodeUnwindInfoV3()

Expected< DecodedUnwindInfoV3 > llvm::Win64EH::decodeUnwindInfoV3

(

ArrayRef< uint8_t >

Data

)

Parse a V3 UNWIND_INFO from raw bytes.

Returns an error on malformed data.

Definition at line 194 of file Win64EH.cpp.

References llvm::alignTo(), llvm::createStringError(), llvm::Data, llvm::Win64EH::DecodedEpilogV3::EpilogOffset, llvm::Win64EH::DecodedEpilogV3::FirstOp, llvm::Win64EH::DecodedEpilogV3::Flags, I, llvm::Win64EH::DecodedEpilogV3::IpOffsetOfLastInstruction, llvm::Win64EH::DecodedEpilogV3::IpOffsets, llvm::Win64EH::DecodedEpilogV3::isLarge(), llvm::Win64EH::DecodedEpilogV3::NumberOfOps, llvm::Offset, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::support::endian::read16le(), and llvm::Win64EH::DecodedUnwindInfoV3::Version.

decodeWOD()

Expected< DecodedWOD > llvm::Win64EH::decodeWOD	(	ArrayRef< uint8_t >	Pool,
		unsigned	Offset )

Decode one WOD from the pool at the given byte offset.

Returns an error on malformed data.

Definition at line 33 of file Win64EH.cpp.

References llvm::createStringError(), llvm::Offset, llvm::support::endian::read16le(), llvm::support::endian::read32le(), llvm::ArrayRef< T >::size(), WOD_ALLOC_HUGE, WOD_ALLOC_LARGE, WOD_ALLOC_SMALL, WOD_PUSH, WOD_PUSH2, WOD_PUSH_CANONICAL_FRAME, WOD_PUSH_CONSECUTIVE_2, WOD_SAVE_NONVOL, WOD_SAVE_NONVOL_FAR, WOD_SAVE_XMM128, WOD_SAVE_XMM128_FAR, and WOD_SET_FPREG.

getRegisterNameV3()

StringRef llvm::Win64EH::getRegisterNameV3

(

unsigned

Reg

)

Return the register name for a 5-bit AMD64 integer register number.

Covers 0-15 (RAX-R15) and 16-31 (R16-R31 for APX).

Definition at line 21 of file Win64EH.cpp.