This class creates clones of input DIE attributes. More...

#include "DWARFLinker/Parallel/DIEAttributeCloner.h"

Public Member Functions
	DIEAttributeCloner (DIE OutDIE, CompileUnit &InUnit, CompileUnit OutUnit, const DWARFDebugInfoEntry *InputDieEntry, DIEGenerator &Generator, std::optional< int64_t > FuncAddressAdjustment, std::optional< int64_t > VarAddressAdjustment, bool HasLocationExpressionAddress)
	DIEAttributeCloner (DIE OutDIE, CompileUnit &InUnit, TypeUnit OutUnit, const DWARFDebugInfoEntry *InputDieEntry, DIEGenerator &Generator, std::optional< int64_t > FuncAddressAdjustment, std::optional< int64_t > VarAddressAdjustment, bool HasLocationExpressionAddress)
void	clone ()
	Clone attributes of input DIE.
unsigned	finalizeAbbreviations (bool HasChildrenToClone)
	Create abbreviations for the output DIE after all attributes are cloned.
unsigned	getOutOffset ()

Public Attributes
AttributesInfo	AttrInfo
	Cannot be used concurrently.

Protected Member Functions
	DIEAttributeCloner (DIE OutDIE, CompileUnit &InUnit, CompileUnit::OutputUnitVariantPtr OutUnit, const DWARFDebugInfoEntry InputDieEntry, DIEGenerator &Generator, std::optional< int64_t > FuncAddressAdjustment, std::optional< int64_t > VarAddressAdjustment, bool HasLocationExpressionAddress)
size_t	cloneStringAttr (const DWARFFormValue &Val, const DWARFAbbreviationDeclaration::AttributeSpec &AttrSpec)
	Clone string attribute.
size_t	cloneDieRefAttr (const DWARFFormValue &Val, const DWARFAbbreviationDeclaration::AttributeSpec &AttrSpec)
	Clone attribute referencing another DIE.
size_t	cloneScalarAttr (const DWARFFormValue &Val, const DWARFAbbreviationDeclaration::AttributeSpec &AttrSpec)
	Clone scalar attribute.
size_t	cloneBlockAttr (const DWARFFormValue &Val, const DWARFAbbreviationDeclaration::AttributeSpec &AttrSpec)
	Clone block or exprloc attribute.
size_t	cloneAddressAttr (const DWARFFormValue &Val, const DWARFAbbreviationDeclaration::AttributeSpec &AttrSpec)
	Clone address attribute.
bool	shouldSkipAttribute (DWARFAbbreviationDeclaration::AttributeSpec AttrSpec)
	Returns true if attribute should be skipped.

Protected Attributes
DIE *	OutDIE = nullptr
	Output DIE.
CompileUnit &	InUnit
	Input compilation unit.
CompileUnit::OutputUnitVariantPtr	OutUnit
	Output unit(either "plain" compilation unit, either artificial type unit).
SectionDescriptor &	DebugInfoOutputSection
	.debug_info section descriptor.
const DWARFDebugInfoEntry *	InputDieEntry = nullptr
	Input DIE entry.
uint32_t	InputDIEIdx = 0
	Input DIE index.
DIEGenerator &	Generator
	Output DIE generator.
std::optional< int64_t >	FuncAddressAdjustment
	Relocation adjustment for the function address ranges.
std::optional< int64_t >	VarAddressAdjustment
	Relocation adjustment for the variable locations.
bool	HasLocationExpressionAddress = false
	Indicates whether InputDieEntry has an location attribute containg address expression.
unsigned	AttrOutOffset = 0
	Output offset after all attributes.
OffsetsPtrVector	PatchesOffsets
	Patches for the cloned attributes.
bool	Use_DW_FORM_strp = false
	This flag forces using DW_FORM_strp for string attributes.

Detailed Description

This class creates clones of input DIE attributes.

It enumerates attributes of input DIE, creates clone for each attribute, adds cloned attribute to the output DIE.

Definition at line 47 of file DIEAttributeCloner.h.

Constructor & Destructor Documentation

◆ DIEAttributeCloner() [1/3]

llvm::dwarf_linker::parallel::DIEAttributeCloner::DIEAttributeCloner	(	DIE *	OutDIE,
		CompileUnit &	InUnit,
		CompileUnit *	OutUnit,
		const DWARFDebugInfoEntry *	InputDieEntry,
		DIEGenerator &	Generator,
		std::optional< int64_t >	FuncAddressAdjustment,
		std::optional< int64_t >	VarAddressAdjustment,
		bool	HasLocationExpressionAddress )

inline

Definition at line 49 of file DIEAttributeCloner.h.

References DIEAttributeCloner(), FuncAddressAdjustment, Generator, HasLocationExpressionAddress, InputDieEntry, InUnit, OutDIE, OutUnit, and VarAddressAdjustment.

Referenced by DIEAttributeCloner(), and DIEAttributeCloner().

◆ DIEAttributeCloner() [2/3]

llvm::dwarf_linker::parallel::DIEAttributeCloner::DIEAttributeCloner	(	DIE *	OutDIE,
		CompileUnit &	InUnit,
		TypeUnit *	OutUnit,
		const DWARFDebugInfoEntry *	InputDieEntry,
		DIEGenerator &	Generator,
		std::optional< int64_t >	FuncAddressAdjustment,
		std::optional< int64_t >	VarAddressAdjustment,
		bool	HasLocationExpressionAddress )

inline

Definition at line 61 of file DIEAttributeCloner.h.

References DIEAttributeCloner(), FuncAddressAdjustment, Generator, HasLocationExpressionAddress, InputDieEntry, InUnit, OutDIE, OutUnit, and VarAddressAdjustment.

◆ DIEAttributeCloner() [3/3]

llvm::dwarf_linker::parallel::DIEAttributeCloner::DIEAttributeCloner	(	DIE *	OutDIE,
		CompileUnit &	InUnit,
		CompileUnit::OutputUnitVariantPtr	OutUnit,
		const DWARFDebugInfoEntry *	InputDieEntry,
		DIEGenerator &	Generator,
		std::optional< int64_t >	FuncAddressAdjustment,
		std::optional< int64_t >	VarAddressAdjustment,
		bool	HasLocationExpressionAddress )

inlineprotected

Definition at line 85 of file DIEAttributeCloner.h.

References llvm::dwarf_linker::DebugInfo, DebugInfoOutputSection, FuncAddressAdjustment, Generator, HasLocationExpressionAddress, InputDieEntry, InputDIEIdx, InUnit, OutDIE, OutUnit, Use_DW_FORM_strp, and VarAddressAdjustment.

Member Function Documentation

◆ clone()

void DIEAttributeCloner::clone ( )

Clone attributes of input DIE.

Definition at line 16 of file DIEAttributeCloner.cpp.

References AttrInfo, AttrOutOffset, cloneAddressAttr(), cloneBlockAttr(), cloneDieRefAttr(), cloneScalarAttr(), cloneStringAttr(), llvm::Data, DebugInfoOutputSection, llvm::dwarf_linker::DebugStrOffsets, llvm::DWARFFormValue::extractValue(), llvm::dwarf::FormEncodingString(), Generator, llvm::getULEB128Size(), InputDieEntry, InputDIEIdx, InUnit, llvm::Offset, OutDIE, OutUnit, PatchesOffsets, shouldSkipAttribute(), and llvm::DWARFFormValue::skipValue().

◆ cloneAddressAttr()

size_t DIEAttributeCloner::cloneAddressAttr	(	const DWARFFormValue &	Val,
		const DWARFAbbreviationDeclaration::AttributeSpec &	AttrSpec )

protected

Clone address attribute.

Definition at line 580 of file DIEAttributeCloner.cpp.

References llvm::DWARFAbbreviationDeclaration::AttributeSpec::Attr, AttrInfo, llvm::DWARFAbbreviationDeclaration::AttributeSpec::Form, FuncAddressAdjustment, Generator, llvm::DWARFFormValue::getRawUValue(), InputDieEntry, InUnit, llvm_unreachable, OutUnit, and VarAddressAdjustment.

Referenced by clone().

◆ cloneBlockAttr()

size_t DIEAttributeCloner::cloneBlockAttr	(	const DWARFFormValue &	Val,
		const DWARFAbbreviationDeclaration::AttributeSpec &	AttrSpec )

protected

Clone block or exprloc attribute.

Definition at line 521 of file DIEAttributeCloner.cpp.

References assert(), llvm::DWARFAbbreviationDeclaration::AttributeSpec::Attr, AttrInfo, AttrOutOffset, llvm::Data, llvm::ArrayRef< T >::data(), DebugInfoOutputSection, llvm::DWARFFormValue::FC_Block, llvm::DWARFFormValue::FC_Exprloc, llvm::DWARFAbbreviationDeclaration::AttributeSpec::Form, Generator, llvm::DWARFFormValue::getAsBlock(), HasLocationExpressionAddress, InUnit, llvm::DWARFFormValue::isFormClass(), llvm::DWARFAttribute::mayHaveLocationExpr(), OutUnit, PatchesOffsets, llvm::ArrayRef< T >::size(), and VarAddressAdjustment.

Referenced by clone().

◆ cloneDieRefAttr()

size_t DIEAttributeCloner::cloneDieRefAttr	(	const DWARFFormValue &	Val,
		const DWARFAbbreviationDeclaration::AttributeSpec &	AttrSpec )

protected

Clone attribute referencing another DIE.

Definition at line 236 of file DIEAttributeCloner.cpp.

References assert(), llvm::DWARFAbbreviationDeclaration::AttributeSpec::Attr, AttrOutOffset, DebugInfoOutputSection, Generator, InputDieEntry, InputDIEIdx, InUnit, llvm::dwarf_linker::parallel::CompileUnit::DIEInfo::needToPlaceInTypeTable(), OutDIE, OutUnit, PatchesOffsets, and llvm::dwarf_linker::parallel::Resolve.

Referenced by clone().

◆ cloneScalarAttr()

size_t DIEAttributeCloner::cloneScalarAttr	(	const DWARFFormValue &	Val,
		const DWARFAbbreviationDeclaration::AttributeSpec &	AttrSpec )

protected

Clone scalar attribute.

Definition at line 304 of file DIEAttributeCloner.cpp.

References llvm::DWARFAbbreviationDeclaration::AttributeSpec::Attr, AttrInfo, AttrOutOffset, llvm::dwarf_linker::DebugAddr, DebugInfoOutputSection, llvm::dwarf_linker::DebugLine, llvm::dwarf_linker::DebugMacinfo, llvm::dwarf_linker::DebugMacro, llvm::dwarf_linker::DebugStrOffsets, llvm::dwarf::doesFormBelongToClass(), llvm::DWARFFormValue::FC_SectionOffset, llvm::DWARFAbbreviationDeclaration::AttributeSpec::Form, FuncAddressAdjustment, Generator, llvm::DWARFFormValue::getAsSectionOffset(), llvm::DWARFFormValue::getAsSignedConstant(), llvm::DWARFFormValue::getAsUnsignedConstant(), InputDieEntry, InputDIEIdx, InUnit, llvm::Macro, llvm::DWARFAttribute::mayHaveLocationList(), llvm::Offset, OutDIE, OutUnit, PatchesOffsets, and VarAddressAdjustment.

Referenced by clone().

◆ cloneStringAttr()

size_t DIEAttributeCloner::cloneStringAttr	(	const DWARFFormValue &	Val,
		const DWARFAbbreviationDeclaration::AttributeSpec &	AttrSpec )

protected

Clone string attribute.

Definition at line 182 of file DIEAttributeCloner.cpp.

References llvm::DWARFAbbreviationDeclaration::AttributeSpec::Attr, AttrInfo, AttrOutOffset, DebugInfoOutputSection, llvm::DWARFAbbreviationDeclaration::AttributeSpec::Form, Generator, InputDIEIdx, InUnit, OutDIE, OutUnit, PatchesOffsets, llvm::String, llvm::dwarf::toString(), and Use_DW_FORM_strp.

Referenced by clone().

◆ finalizeAbbreviations()

unsigned DIEAttributeCloner::finalizeAbbreviations ( bool HasChildrenToClone )

Create abbreviations for the output DIE after all attributes are cloned.

Definition at line 647 of file DIEAttributeCloner.cpp.

References AttrOutOffset, Generator, and PatchesOffsets.

◆ getOutOffset()

unsigned llvm::dwarf_linker::parallel::DIEAttributeCloner::getOutOffset ( )

inline

Definition at line 82 of file DIEAttributeCloner.h.

References AttrOutOffset.

◆ shouldSkipAttribute()

bool DIEAttributeCloner::shouldSkipAttribute ( DWARFAbbreviationDeclaration::AttributeSpec AttrSpec )

protected

Returns true if attribute should be skipped.

Definition at line 138 of file DIEAttributeCloner.cpp.

References llvm::DWARFAbbreviationDeclaration::AttributeSpec::Attr, FuncAddressAdjustment, HasLocationExpressionAddress, InputDIEIdx, InUnit, and VarAddressAdjustment.

Referenced by clone().

Member Data Documentation

◆ AttrInfo

AttributesInfo llvm::dwarf_linker::parallel::DIEAttributeCloner::AttrInfo

Cannot be used concurrently.

Definition at line 80 of file DIEAttributeCloner.h.

Referenced by clone(), cloneAddressAttr(), cloneBlockAttr(), cloneScalarAttr(), and cloneStringAttr().

◆ AttrOutOffset

unsigned llvm::dwarf_linker::parallel::DIEAttributeCloner::AttrOutOffset = 0

protected

Output offset after all attributes.

Definition at line 173 of file DIEAttributeCloner.h.

Referenced by clone(), cloneBlockAttr(), cloneDieRefAttr(), cloneScalarAttr(), cloneStringAttr(), finalizeAbbreviations(), and getOutOffset().

◆ DebugInfoOutputSection

SectionDescriptor& llvm::dwarf_linker::parallel::DIEAttributeCloner::DebugInfoOutputSection

protected

.debug_info section descriptor.

Definition at line 151 of file DIEAttributeCloner.h.

Referenced by clone(), cloneBlockAttr(), cloneDieRefAttr(), cloneScalarAttr(), cloneStringAttr(), and DIEAttributeCloner().

◆ FuncAddressAdjustment

std::optional<int64_t> llvm::dwarf_linker::parallel::DIEAttributeCloner::FuncAddressAdjustment

protected

Relocation adjustment for the function address ranges.

Definition at line 163 of file DIEAttributeCloner.h.

Referenced by cloneAddressAttr(), cloneScalarAttr(), DIEAttributeCloner(), DIEAttributeCloner(), DIEAttributeCloner(), and shouldSkipAttribute().

◆ Generator

DIEGenerator& llvm::dwarf_linker::parallel::DIEAttributeCloner::Generator

protected

Output DIE generator.

Definition at line 160 of file DIEAttributeCloner.h.

Referenced by clone(), cloneAddressAttr(), cloneBlockAttr(), cloneDieRefAttr(), cloneScalarAttr(), cloneStringAttr(), DIEAttributeCloner(), DIEAttributeCloner(), DIEAttributeCloner(), and finalizeAbbreviations().

◆ HasLocationExpressionAddress

bool llvm::dwarf_linker::parallel::DIEAttributeCloner::HasLocationExpressionAddress = false

protected

Indicates whether InputDieEntry has an location attribute containg address expression.

Definition at line 170 of file DIEAttributeCloner.h.

Referenced by cloneBlockAttr(), DIEAttributeCloner(), DIEAttributeCloner(), DIEAttributeCloner(), and shouldSkipAttribute().

◆ InputDieEntry

const DWARFDebugInfoEntry* llvm::dwarf_linker::parallel::DIEAttributeCloner::InputDieEntry = nullptr

protected

Input DIE entry.

Definition at line 154 of file DIEAttributeCloner.h.

Referenced by clone(), cloneAddressAttr(), cloneDieRefAttr(), cloneScalarAttr(), DIEAttributeCloner(), DIEAttributeCloner(), and DIEAttributeCloner().

◆ InputDIEIdx

uint32_t llvm::dwarf_linker::parallel::DIEAttributeCloner::InputDIEIdx = 0

protected

Input DIE index.

Definition at line 157 of file DIEAttributeCloner.h.

Referenced by clone(), cloneDieRefAttr(), cloneScalarAttr(), cloneStringAttr(), DIEAttributeCloner(), and shouldSkipAttribute().

◆ InUnit

CompileUnit& llvm::dwarf_linker::parallel::DIEAttributeCloner::InUnit

protected

Input compilation unit.

Definition at line 145 of file DIEAttributeCloner.h.

Referenced by clone(), cloneAddressAttr(), cloneBlockAttr(), cloneDieRefAttr(), cloneScalarAttr(), cloneStringAttr(), DIEAttributeCloner(), DIEAttributeCloner(), DIEAttributeCloner(), and shouldSkipAttribute().

◆ OutDIE

DIE* llvm::dwarf_linker::parallel::DIEAttributeCloner::OutDIE = nullptr

protected

Output DIE.

Definition at line 142 of file DIEAttributeCloner.h.

Referenced by clone(), cloneDieRefAttr(), cloneScalarAttr(), cloneStringAttr(), DIEAttributeCloner(), DIEAttributeCloner(), and DIEAttributeCloner().

◆ OutUnit

CompileUnit::OutputUnitVariantPtr llvm::dwarf_linker::parallel::DIEAttributeCloner::OutUnit

protected

Output unit(either "plain" compilation unit, either artificial type unit).

Definition at line 148 of file DIEAttributeCloner.h.

Referenced by clone(), cloneAddressAttr(), cloneBlockAttr(), cloneDieRefAttr(), cloneScalarAttr(), cloneStringAttr(), DIEAttributeCloner(), DIEAttributeCloner(), and DIEAttributeCloner().

◆ PatchesOffsets

OffsetsPtrVector llvm::dwarf_linker::parallel::DIEAttributeCloner::PatchesOffsets

protected

Patches for the cloned attributes.

Definition at line 176 of file DIEAttributeCloner.h.

Referenced by clone(), cloneBlockAttr(), cloneDieRefAttr(), cloneScalarAttr(), cloneStringAttr(), and finalizeAbbreviations().

◆ Use_DW_FORM_strp

bool llvm::dwarf_linker::parallel::DIEAttributeCloner::Use_DW_FORM_strp = false

protected

This flag forces using DW_FORM_strp for string attributes.

Definition at line 179 of file DIEAttributeCloner.h.

Referenced by cloneStringAttr(), and DIEAttributeCloner().

◆ VarAddressAdjustment

std::optional<int64_t> llvm::dwarf_linker::parallel::DIEAttributeCloner::VarAddressAdjustment

protected

Relocation adjustment for the variable locations.

Definition at line 166 of file DIEAttributeCloner.h.

Referenced by cloneAddressAttr(), cloneBlockAttr(), cloneScalarAttr(), DIEAttributeCloner(), DIEAttributeCloner(), DIEAttributeCloner(), and shouldSkipAttribute().

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

lib/DWARFLinker/Parallel/DIEAttributeCloner.h
lib/DWARFLinker/Parallel/DIEAttributeCloner.cpp

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ DIEAttributeCloner() [1/3]

◆ DIEAttributeCloner() [2/3]

◆ DIEAttributeCloner() [3/3]

Member Function Documentation

◆ clone()

◆ cloneAddressAttr()

◆ cloneBlockAttr()

◆ cloneDieRefAttr()

◆ cloneScalarAttr()

◆ cloneStringAttr()

◆ finalizeAbbreviations()

◆ getOutOffset()

◆ shouldSkipAttribute()

Member Data Documentation

◆ AttrInfo

◆ AttrOutOffset

◆ DebugInfoOutputSection

◆ FuncAddressAdjustment

◆ Generator

◆ HasLocationExpressionAddress

◆ InputDieEntry

◆ InputDIEIdx

◆ InUnit

◆ OutDIE

◆ OutUnit

◆ PatchesOffsets

◆ Use_DW_FORM_strp

◆ VarAddressAdjustment