This implements the Apple accelerator table format, a precursor of the DWARF 5 accelerator table format. More...

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

Inheritance diagram for llvm::AppleAcceleratorTable:

Collaboration diagram for llvm::AppleAcceleratorTable:

Classes
class	Entry
	Apple-specific implementation of an Accelerator Entry. More...

class	ValueIterator

Public Member Functions
	AppleAcceleratorTable (const DWARFDataExtractor &AccelSection, DataExtractor StringSection)

llvm::Error	extract () override

uint32_t	getNumBuckets ()

uint32_t	getNumHashes ()

uint32_t	getSizeHdr ()

uint32_t	getHeaderDataLength ()

ArrayRef< std::pair< HeaderData::AtomType, HeaderData::Form > >	getAtomsDesc ()
	Return the Atom description, which can be used to interpret the raw values of the Accelerator Entries in this table. More...

bool	validateForms ()

std::pair< uint32_t, dwarf::Tag >	readAtoms (uint32_t &HashDataOffset)
	Return information related to the DWARF DIE we're looking for when performing a lookup by name. More...

void	dump (raw_ostream &OS) const override

iterator_range< ValueIterator >	equal_range (StringRef Key) const
	Look up all entries in the accelerator table matching `Key`. More...

Public Member Functions inherited from llvm::DWARFAcceleratorTable
	DWARFAcceleratorTable (const DWARFDataExtractor &AccelSection, DataExtractor StringSection)

virtual	~DWARFAcceleratorTable ()

	DWARFAcceleratorTable (const DWARFAcceleratorTable &)=delete

void	operator= (const DWARFAcceleratorTable &)=delete

Additional Inherited Members
Protected Attributes inherited from llvm::DWARFAcceleratorTable
DWARFDataExtractor	AccelSection

DataExtractor	StringSection

Detailed Description

This implements the Apple accelerator table format, a precursor of the DWARF 5 accelerator table format.

Definition at line 84 of file DWARFAcceleratorTable.h.

Constructor & Destructor Documentation

◆ AppleAcceleratorTable()

llvm::AppleAcceleratorTable::AppleAcceleratorTable	(	const DWARFDataExtractor &	AccelSection,
		DataExtractor	StringSection
	)

inline

Definition at line 174 of file DWARFAcceleratorTable.h.

References llvm::DWARFAcceleratorTable::dump(), and llvm::DWARFAcceleratorTable::extract().

Member Function Documentation

◆ dump()

LLVM_DUMP_METHOD void AppleAcceleratorTable::dump ( raw_ostream & OS ) const

overridevirtual

Implements llvm::DWARFAcceleratorTable.

Definition at line 204 of file DWARFAcceleratorTable.cpp.

References llvm::DWARFAcceleratorTable::AccelSection, llvm::dwarf::DWARF32, for(), formatAtom(), llvm::formatv(), llvm::ScopedPrinter::printNumber(), llvm::ScopedPrinter::printString(), llvm::SmallVectorTemplateBase< T >::push_back(), llvm::ScopedPrinter::startLine(), llvm::Twine::utohexstr(), and llvm::RISCVFenceField::W.

Referenced by llvm::DWARFContext::dump(), and llvm::DWARFDebugNames::Entry::dump().

◆ equal_range()

iterator_range< AppleAcceleratorTable::ValueIterator > AppleAcceleratorTable::equal_range ( StringRef Key ) const

Look up all entries in the accelerator table matching Key.

Definition at line 330 of file DWARFAcceleratorTable.cpp.

References llvm::DWARFAcceleratorTable::AccelSection, llvm::djbHash(), llvm::DataExtractor::getCStr(), llvm::DWARFDataExtractor::getRelocatedValue(), llvm::DataExtractor::getU32(), llvm::make_range(), llvm::DWARFAcceleratorTable::StringSection, and llvm::AppleAcceleratorTable::ValueIterator::ValueIterator().

◆ extract()

llvm::Error AppleAcceleratorTable::extract ( )

overridevirtual

Implements llvm::DWARFAcceleratorTable.

Definition at line 45 of file DWARFAcceleratorTable.cpp.

References llvm::createStringError(), llvm::illegal_byte_sequence, offsetof, and llvm::Error::success().

◆ getAtomsDesc()

ArrayRef< std::pair< AppleAcceleratorTable::HeaderData::AtomType, AppleAcceleratorTable::HeaderData::Form > > AppleAcceleratorTable::getAtomsDesc ( )

Return the Atom description, which can be used to interpret the raw values of the Accelerator Entries in this table.

Definition at line 92 of file DWARFAcceleratorTable.cpp.

◆ getHeaderDataLength()

uint32_t AppleAcceleratorTable::getHeaderDataLength ( )

Definition at line 86 of file DWARFAcceleratorTable.cpp.

◆ getNumBuckets()

uint32_t AppleAcceleratorTable::getNumBuckets ( )

Definition at line 83 of file DWARFAcceleratorTable.cpp.

◆ getNumHashes()

uint32_t AppleAcceleratorTable::getNumHashes ( )

Definition at line 84 of file DWARFAcceleratorTable.cpp.

◆ getSizeHdr()

uint32_t AppleAcceleratorTable::getSizeHdr ( )

Definition at line 85 of file DWARFAcceleratorTable.cpp.

◆ readAtoms()

std::pair< uint32_t, dwarf::Tag > AppleAcceleratorTable::readAtoms ( uint32_t & HashDataOffset )

Return information related to the DWARF DIE we're looking for when performing a lookup by name.

Parameters

HashDataOffset an offset into the hash data table

Returns: <DieOffset, DieTag> DieOffset is the offset into the .debug_info section for the DIE related to the input hash data offset. DieTag is the tag of the DIE

Definition at line 116 of file DWARFAcceleratorTable.cpp.

References llvm::dwarf::AtomValueString(), llvm::Data, dump(), llvm::dwarf::DW_ATOM_die_offset, llvm::dwarf::DW_ATOM_die_tag, llvm::dwarf::DW_INVALID_OFFSET, llvm::dwarf::DWARF32, llvm::StringRef::empty(), llvm::DWARFFormValue::extractValue(), llvm::format(), llvm::DWARFFormValue::getAsSectionOffset(), llvm::DWARFFormValue::getAsUnsignedConstant(), llvm::DWARFFormValue::getForm(), llvm::ScopedPrinter::getOStream(), llvm::DWARFFormValue::getRawUValue(), Magic, llvm::None, llvm::ScopedPrinter::printHex(), llvm::ScopedPrinter::printNumber(), llvm::ScopedPrinter::printString(), llvm::ScopedPrinter::startLine(), llvm::Twine::utohexstr(), llvm::dwarf::FormParams::Version, llvm::IndexedInstrProf::Version, and llvm::RISCVFenceField::W.

◆ validateForms()

bool AppleAcceleratorTable::validateForms ( )

Definition at line 96 of file DWARFAcceleratorTable.cpp.

References llvm::dwarf::DW_ATOM_die_offset, llvm::dwarf::DW_ATOM_die_tag, llvm::dwarf::DW_ATOM_type_flags, llvm::DWARFFormValue::FC_Constant, llvm::DWARFFormValue::FC_Flag, llvm::DWARFFormValue::getForm(), and llvm::DWARFFormValue::isFormClass().

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

include/llvm/DebugInfo/DWARF/DWARFAcceleratorTable.h
lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp

Classes

Public Member Functions

Additional Inherited Members