An abstract base class for various kinds of location tables (.debug_loc, .debug_loclists, and their dwo variants). More...

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

Inheritance diagram for llvm::DWARFLocationTable:

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Collaboration diagram for llvm::DWARFLocationTable:

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Public Member Functions
	DWARFLocationTable (DWARFDataExtractor Data)

virtual	~DWARFLocationTable ()=default

virtual Error	visitLocationList (uint64_t *Offset, function_ref< bool(const DWARFLocationEntry &)> Callback) const =0
	Call the user-provided callback for each entry (including the end-of-list entry) in the location list starting at `Offset`. More...

bool	dumpLocationList (uint64_t Offset, raw_ostream &OS, Optional< object::SectionedAddress > BaseAddr, const MCRegisterInfo MRI, const DWARFObject &Obj, DWARFUnit *U, DIDumpOptions DumpOpts, unsigned Indent) const
	Dump the location list at the given `Offset`. More...

Error	visitAbsoluteLocationList (uint64_t Offset, Optional< object::SectionedAddress > BaseAddr, std::function< Optional< object::SectionedAddress >(uint32_t)> LookupAddr, function_ref< bool(Expected< DWARFLocationExpression >)> Callback) const

const DWARFDataExtractor &	getData ()

Protected Member Functions
virtual void	dumpRawEntry (const DWARFLocationEntry &Entry, raw_ostream &OS, unsigned Indent, DIDumpOptions DumpOpts, const DWARFObject &Obj) const =0

Protected Attributes
DWARFDataExtractor	Data

Detailed Description

An abstract base class for various kinds of location tables (.debug_loc, .debug_loclists, and their dwo variants).

Definition at line 46 of file DWARFDebugLoc.h.

Constructor & Destructor Documentation

◆ DWARFLocationTable()

llvm::DWARFLocationTable::DWARFLocationTable ( DWARFDataExtractor Data )

inline

Definition at line 48 of file DWARFDebugLoc.h.

◆ ~DWARFLocationTable()

virtual llvm::DWARFLocationTable::~DWARFLocationTable ( )

virtualdefault

Member Function Documentation

◆ dumpLocationList()

bool DWARFLocationTable::dumpLocationList	(	uint64_t *	Offset,
		raw_ostream &	OS,
		Optional< object::SectionedAddress >	BaseAddr,
		const MCRegisterInfo *	MRI,
		const DWARFObject &	Obj,
		DWARFUnit *	U,
		DIDumpOptions	DumpOpts,
		unsigned	Indent
	)		const

Dump the location list at the given Offset.

The function returns true iff it has successfully reched the end of the list. This means that one can attempt to parse another list after the current one (Offset will be updated to point past the end of the current list).

Definition at line 121 of file DWARFDebugLoc.cpp.

References llvm::consumeError(), Data, llvm::DIDumpOptions::DisplayRawContents, dumpRawEntry(), E, llvm::format(), llvm::Expected< T >::get(), llvm::DataExtractor::getAddressSize(), llvm::DWARFUnit::getAddrOffsetSectionItem(), if(), llvm::raw_ostream::indent(), Index, move, llvm::None, Offset, llvm::DIDumpOptions::RecoverableErrorHandler, llvm::Expected< T >::takeError(), and visitLocationList().

Referenced by llvm::DWARFDebugLoc::dump(), llvm::DWARFContext::dump(), dumpLocationList(), dumpLoclistsSection(), and llvm::DWARFDebugLoclists::dumpRange().

◆ dumpRawEntry()

virtual void llvm::DWARFLocationTable::dumpRawEntry	(	const DWARFLocationEntry &	Entry,
		raw_ostream &	OS,
		unsigned	Indent,
		DIDumpOptions	DumpOpts,
		const DWARFObject &	Obj
	)		const

protectedpure virtual

Implemented in llvm::DWARFDebugLoclists, and llvm::DWARFDebugLoc.

Referenced by dumpLocationList().

◆ getData()

const DWARFDataExtractor& llvm::DWARFLocationTable::getData ( )

inline

Definition at line 75 of file DWARFDebugLoc.h.

References Data.

◆ visitAbsoluteLocationList()

Error DWARFLocationTable::visitAbsoluteLocationList	(	uint64_t	Offset,
		Optional< object::SectionedAddress >	BaseAddr,
		std::function< Optional< object::SectionedAddress >(uint32_t)>	LookupAddr,
		function_ref< bool(Expected< DWARFLocationExpression >)>	Callback
	)		const

Definition at line 170 of file DWARFDebugLoc.cpp.

References E, if(), move, Offset, llvm::Expected< T >::takeError(), and visitLocationList().

Referenced by llvm::DWARFUnit::findLoclistFromOffset().

◆ visitLocationList()

virtual Error llvm::DWARFLocationTable::visitLocationList	(	uint64_t *	Offset,
		function_ref< bool(const DWARFLocationEntry &)>	Callback
	)		const

pure virtual

Call the user-provided callback for each entry (including the end-of-list entry) in the location list starting at Offset.

The callback can return false to terminate the iteration early. Returns an error if it was unable to parse the entire location list correctly. Upon successful termination Offset will be updated point past the end of the list.

Implemented in llvm::DWARFDebugLoclists, and llvm::DWARFDebugLoc.

Referenced by dumpLocationList(), and visitAbsoluteLocationList().