llvm::FrameEntry Class Reference

Abstract frame entry defining the common interface concrete entries implement. More...

Collaboration diagram for llvm::FrameEntry:

List of all members.

Classes
struct	Instruction
Public Types
enum	FrameKind { FK_CIE, FK_FDE }
Public Member Functions
	FrameEntry (FrameKind K, uint64_t Offset, uint64_t Length)
virtual	~FrameEntry ()
FrameKind	getKind () const
virtual uint64_t	getOffset () const
virtual void	parseInstructions (DataExtractor Data, uint32_t *Offset, uint32_t EndOffset)
	Parse and store a sequence of CFI instructions from Data, starting at *Offset and ending at EndOffset. If everything goes well, *Offset should be equal to EndOffset when this method returns. Otherwise, an error occurred.
virtual void	dumpHeader (raw_ostream &OS) const =0
	Dump the entry header to the given output stream.
virtual void	dumpInstructions (raw_ostream &OS) const
	Dump the entry's instructions to the given output stream.
Protected Types
typedef std::vector< uint64_t >	Operands
Protected Member Functions
void	addInstruction (uint8_t Opcode)
void	addInstruction (uint8_t Opcode, uint64_t Operand1)
void	addInstruction (uint8_t Opcode, uint64_t Operand1, uint64_t Operand2)
Protected Attributes
const FrameKind	Kind
uint64_t	Offset
	Offset of this entry in the section.
uint64_t	Length
	Entry length as specified in DWARF.
std::vector< Instruction >	Instructions

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Detailed Description

Abstract frame entry defining the common interface concrete entries implement.

Definition at line 26 of file DWARFDebugFrame.cpp.

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Member Typedef Documentation

typedef std::vector<uint64_t> llvm::FrameEntry::Operands [protected]

An entry may contain CFI instructions. An instruction consists of an opcode and an optional sequence of operands.

Definition at line 62 of file DWARFDebugFrame.cpp.

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Member Enumeration Documentation

enum llvm::FrameEntry::FrameKind

Enumerator:

FK_CIE
FK_FDE

Definition at line 28 of file DWARFDebugFrame.cpp.

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Constructor & Destructor Documentation

llvm::FrameEntry::FrameEntry	(	FrameKind	K,
		uint64_t	Offset,
		uint64_t	Length
	)		[inline]

Definition at line 29 of file DWARFDebugFrame.cpp.

virtual llvm::FrameEntry::~FrameEntry

(

)

[inline, virtual]

Definition at line 32 of file DWARFDebugFrame.cpp.

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Member Function Documentation

void llvm::FrameEntry::addInstruction

(

uint8_t

Opcode

)

[inline, protected]

Convenience methods to add a new instruction with the given opcode and operands to the Instructions vector.

Definition at line 76 of file DWARFDebugFrame.cpp.

void llvm::FrameEntry::addInstruction	(	uint8_t	Opcode,
		uint64_t	Operand1
	)		[inline, protected]

Definition at line 80 of file DWARFDebugFrame.cpp.

void llvm::FrameEntry::addInstruction	(	uint8_t	Opcode,
		uint64_t	Operand1,
		uint64_t	Operand2
	)		[inline, protected]

Definition at line 85 of file DWARFDebugFrame.cpp.

virtual void llvm::FrameEntry::dumpHeader

(

raw_ostream &

OS

)

const [pure virtual]

Dump the entry header to the given output stream.

void FrameEntry::dumpInstructions

(

raw_ostream &

OS

)

const [virtual]

Dump the entry's instructions to the given output stream.

Definition at line 183 of file DWARFDebugFrame.cpp.

References llvm::dwarf::CallFrameString(), and DWARF_CFI_PRIMARY_OPCODE_MASK.

FrameKind llvm::FrameEntry::getKind

(

)

const [inline]

Definition at line 35 of file DWARFDebugFrame.cpp.

virtual uint64_t llvm::FrameEntry::getOffset

(

)

const [inline, virtual]

Definition at line 36 of file DWARFDebugFrame.cpp.

void FrameEntry::parseInstructions	(	DataExtractor	Data,
		uint32_t *	Offset,
		uint32_t	EndOffset
	)		[virtual]

Parse and store a sequence of CFI instructions from Data, starting at *Offset and ending at EndOffset. If everything goes well, *Offset should be equal to EndOffset when this method returns. Otherwise, an error occurred.

Definition at line 97 of file DWARFDebugFrame.cpp.

References llvm::dwarf::DW_CFA_advance_loc, llvm::dwarf::DW_CFA_advance_loc1, llvm::dwarf::DW_CFA_advance_loc2, llvm::dwarf::DW_CFA_advance_loc4, llvm::dwarf::DW_CFA_def_cfa, llvm::dwarf::DW_CFA_def_cfa_expression, llvm::dwarf::DW_CFA_def_cfa_offset, llvm::dwarf::DW_CFA_def_cfa_offset_sf, llvm::dwarf::DW_CFA_def_cfa_register, llvm::dwarf::DW_CFA_def_cfa_sf, llvm::dwarf::DW_CFA_expression, llvm::dwarf::DW_CFA_GNU_window_save, llvm::dwarf::DW_CFA_nop, llvm::dwarf::DW_CFA_offset, llvm::dwarf::DW_CFA_offset_extended, llvm::dwarf::DW_CFA_offset_extended_sf, llvm::dwarf::DW_CFA_register, llvm::dwarf::DW_CFA_remember_state, llvm::dwarf::DW_CFA_restore, llvm::dwarf::DW_CFA_restore_extended, llvm::dwarf::DW_CFA_restore_state, llvm::dwarf::DW_CFA_same_value, llvm::dwarf::DW_CFA_set_loc, llvm::dwarf::DW_CFA_undefined, llvm::dwarf::DW_CFA_val_expression, llvm::dwarf::DW_CFA_val_offset, llvm::dwarf::DW_CFA_val_offset_sf, DWARF_CFI_PRIMARY_OPCODE_MASK, DWARF_CFI_PRIMARY_OPERAND_MASK, llvm::DataExtractor::getAddress(), llvm::DataExtractor::getSLEB128(), llvm::DataExtractor::getU16(), llvm::DataExtractor::getU32(), llvm::DataExtractor::getU8(), llvm::DataExtractor::getULEB128(), llvm_unreachable, and llvm::report_fatal_error().

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Member Data Documentation

std::vector<Instruction> llvm::FrameEntry::Instructions [protected]

Definition at line 72 of file DWARFDebugFrame.cpp.

const FrameKind llvm::FrameEntry::Kind [protected]

Definition at line 52 of file DWARFDebugFrame.cpp.

uint64_t llvm::FrameEntry::Length [protected]

Entry length as specified in DWARF.

Definition at line 58 of file DWARFDebugFrame.cpp.

uint64_t llvm::FrameEntry::Offset [protected]

Offset of this entry in the section.

Definition at line 55 of file DWARFDebugFrame.cpp.

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

• DWARFDebugFrame.cpp