#include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h"

Classes
struct	AttributeSpec

Public Types
enum class	ExtractState { Complete , MoreItems }

using	AttributeSpecVector = SmallVector< AttributeSpec, 8 >

using	attr_iterator_range = iterator_range< AttributeSpecVector::const_iterator >

Public Member Functions
	DWARFAbbreviationDeclaration ()

uint32_t	getCode () const

uint8_t	getCodeByteSize () const

dwarf::Tag	getTag () const

bool	hasChildren () const

attr_iterator_range	attributes () const

dwarf::Form	getFormByIndex (uint32_t idx) const

size_t	getNumAttributes () const

dwarf::Attribute	getAttrByIndex (uint32_t idx) const

bool	getAttrIsImplicitConstByIndex (uint32_t idx) const

int64_t	getAttrImplicitConstValueByIndex (uint32_t idx) const

std::optional< uint32_t >	findAttributeIndex (dwarf::Attribute attr) const
	Get the index of the specified attribute.

std::optional< DWARFFormValue >	getAttributeValue (const uint64_t DIEOffset, const dwarf::Attribute Attr, const DWARFUnit &U) const
	Extract a DWARF form value from a DIE specified by DIE offset.

uint64_t	getAttributeOffsetFromIndex (uint32_t AttrIndex, uint64_t DIEOffset, const DWARFUnit &U) const
	Compute an offset from a DIE specified by DIE offset and attribute index.

std::optional< DWARFFormValue >	getAttributeValueFromOffset (uint32_t AttrIndex, uint64_t Offset, const DWARFUnit &U) const
	Extract a DWARF form value from a DIE speccified by attribute index and its offset.

llvm::Expected< ExtractState >	extract (DataExtractor Data, uint64_t *OffsetPtr)

void	dump (raw_ostream &OS) const

std::optional< size_t >	getFixedAttributesByteSize (const DWARFUnit &U) const

Detailed Description

Definition at line 26 of file DWARFAbbreviationDeclaration.h.

Member Typedef Documentation

◆ attr_iterator_range

using llvm::DWARFAbbreviationDeclaration::attr_iterator_range = iterator_range<AttributeSpecVector::const_iterator>

Definition at line 101 of file DWARFAbbreviationDeclaration.h.

◆ AttributeSpecVector

using llvm::DWARFAbbreviationDeclaration::AttributeSpecVector = SmallVector<AttributeSpec, 8>

Definition at line 92 of file DWARFAbbreviationDeclaration.h.

Member Enumeration Documentation

◆ ExtractState

enum class llvm::DWARFAbbreviationDeclaration::ExtractState

strong

Enumerator
Complete
MoreItems

Definition at line 28 of file DWARFAbbreviationDeclaration.h.

Constructor & Destructor Documentation

◆ DWARFAbbreviationDeclaration()

DWARFAbbreviationDeclaration::DWARFAbbreviationDeclaration ( )

Definition at line 33 of file DWARFAbbreviationDeclaration.cpp.

Member Function Documentation

◆ attributes()

attr_iterator_range llvm::DWARFAbbreviationDeclaration::attributes ( ) const

inline

Definition at line 104 of file DWARFAbbreviationDeclaration.h.

References llvm::SmallVectorTemplateCommon< T, typename >::begin(), and llvm::SmallVectorTemplateCommon< T, typename >::end().

Referenced by llvm::DWARFDebugInfoEntry::extractFast().

◆ dump()

void DWARFAbbreviationDeclaration::dump ( raw_ostream & OS ) const

Definition at line 148 of file DWARFAbbreviationDeclaration.cpp.

References llvm::formatv(), getCode(), getTag(), hasChildren(), and OS.

◆ extract()

llvm::Expected< DWARFAbbreviationDeclaration::ExtractState > DWARFAbbreviationDeclaration::extract	(	DataExtractor	Data,
		uint64_t *	OffsetPtr
	)

Definition at line 38 of file DWARFAbbreviationDeclaration.cpp.

References A, Complete, llvm::Data, llvm::dwarf::DW_CHILDREN_yes, F, llvm::dwarf::getFixedFormByteSize(), MoreItems, llvm::Offset, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::Error::success().

Referenced by llvm::DWARFAbbreviationDeclarationSet::extract().

◆ findAttributeIndex()

std::optional< uint32_t > DWARFAbbreviationDeclaration::findAttributeIndex ( dwarf::Attribute attr ) const

Get the index of the specified attribute.

Searches the this abbreviation declaration for the index of the specified attribute.

Parameters

attr	DWARF attribute to search for.

Returns: Optional index of the attribute if found, std::nullopt otherwise.

Definition at line 162 of file DWARFAbbreviationDeclaration.cpp.

References llvm::SmallVectorBase< Size_T >::size().

Referenced by getAttributeValue().

◆ getAttrByIndex()

dwarf::Attribute llvm::DWARFAbbreviationDeclaration::getAttrByIndex ( uint32_t idx ) const

inline

Definition at line 117 of file DWARFAbbreviationDeclaration.h.

References assert(), and llvm::SmallVectorBase< Size_T >::size().

◆ getAttributeOffsetFromIndex()

uint64_t DWARFAbbreviationDeclaration::getAttributeOffsetFromIndex	(	uint32_t	AttrIndex,
		uint64_t	DIEOffset,
		const DWARFUnit &	U
	)		const

Compute an offset from a DIE specified by DIE offset and attribute index.

Parameters

AttrIndex	an index of DWARF attribute.
DIEOffset	the DIE offset that points to the ULEB128 abbreviation code in the .debug_info data.
U	the DWARFUnit the contains the DIE.

Returns: an offset of the attribute.

Definition at line 170 of file DWARFAbbreviationDeclaration.cpp.

References llvm::Offset, and llvm::DWARFFormValue::skipValue().

Referenced by getAttributeValue().

◆ getAttributeValue()

std::optional< DWARFFormValue > DWARFAbbreviationDeclaration::getAttributeValue	(	const uint64_t	DIEOffset,
		const dwarf::Attribute	Attr,
		const DWARFUnit &	U
	)		const

Extract a DWARF form value from a DIE specified by DIE offset.

Extract an attribute value for a DWARFUnit given the DIE offset and the attribute.

Parameters

DIEOffset	the DIE offset that points to the ULEB128 abbreviation code in the .debug_info data.
Attr	DWARF attribute to search for.
U	the DWARFUnit the contains the DIE.

Returns: Optional DWARF form value if the attribute was extracted.

Definition at line 207 of file DWARFAbbreviationDeclaration.cpp.

References findAttributeIndex(), getAttributeOffsetFromIndex(), getAttributeValueFromOffset(), and llvm::Offset.

◆ getAttributeValueFromOffset()

std::optional< DWARFFormValue > DWARFAbbreviationDeclaration::getAttributeValueFromOffset	(	uint32_t	AttrIndex,
		uint64_t	Offset,
		const DWARFUnit &	U
	)		const