llvm::dwarf::FormParams Struct Reference

A helper struct providing information about the byte size of DW_FORM values that vary in size depending on the DWARF version, address byte size, or DWARF32/DWARF64. More...

#include "llvm/BinaryFormat/Dwarf.h"

Collaboration diagram for llvm::dwarf::FormParams:

Public Member Functions
uint8_t	getRefAddrByteSize () const
	The definition of the size of form DW_FORM_ref_addr depends on the version. More...
uint8_t	getDwarfOffsetByteSize () const
	The size of a reference is determined by the DWARF 32/64-bit format. More...
	operator bool () const

Public Attributes
uint16_t	Version
uint8_t	AddrSize
DwarfFormat	Format

Detailed Description

A helper struct providing information about the byte size of DW_FORM values that vary in size depending on the DWARF version, address byte size, or DWARF32/DWARF64.

Definition at line 499 of file Dwarf.h.

Member Function Documentation

getDwarfOffsetByteSize()

uint8_t llvm::dwarf::FormParams::getDwarfOffsetByteSize ( ) const

inline

The size of a reference is determined by the DWARF 32/64-bit format.

Definition at line 514 of file Dwarf.h.

References llvm::dwarf::DWARF32, llvm::dwarf::DWARF64, and llvm_unreachable.

Referenced by llvm::DWARFFormValue::extractValue(), llvm::DWARFUnitHeader::getDwarfOffsetByteSize(), llvm::StrOffsetsContributionDescriptor::getDwarfOffsetByteSize(), llvm::dwarf::getFixedFormByteSize(), and getRefAddrByteSize().

getRefAddrByteSize()

uint8_t llvm::dwarf::FormParams::getRefAddrByteSize ( ) const

inline

The definition of the size of form DW_FORM_ref_addr depends on the version.

In DWARF v2 it's the size of an address; after that, it's the size of a reference.

Definition at line 507 of file Dwarf.h.

References AddrSize, and getDwarfOffsetByteSize().

Referenced by llvm::DWARFFormValue::extractValue(), llvm::dwarf::getFixedFormByteSize(), and llvm::DWARFUnitHeader::getRefAddrByteSize().

operator bool()

llvm::dwarf::FormParams::operator bool ( ) const

inlineexplicit

Definition at line 524 of file Dwarf.h.

References AddrSize, llvm::dwarf::AtomValueString(), llvm::dwarf::AttributeValueString(), llvm::dwarf::getFixedFormByteSize(), llvm::dwarf::isValidFormForVersion(), and Version.

Member Data Documentation

AddrSize

uint8_t llvm::dwarf::FormParams::AddrSize

Definition at line 501 of file Dwarf.h.

Referenced by llvm::DWARFUnitHeader::extract(), llvm::DWARFFormValue::extractValue(), llvm::DWARFUnitHeader::getAddressByteSize(), llvm::DWARFDebugLine::Prologue::getAddressSize(), llvm::dwarf::getFixedFormByteSize(), getRefAddrByteSize(), operator bool(), and llvm::DWARFDebugLine::Prologue::parse().

Format

DwarfFormat llvm::dwarf::FormParams::Format

Definition at line 502 of file Dwarf.h.

Referenced by llvm::DWARFUnitHeader::extract(), llvm::DWARFUnitHeader::getFormat(), llvm::StrOffsetsContributionDescriptor::getFormat(), llvm::DWARFDebugLine::Prologue::isDWARF64(), and llvm::DWARFDebugLine::Prologue::parse().

Version

uint16_t llvm::dwarf::FormParams::Version

Definition at line 500 of file Dwarf.h.

Referenced by llvm::DWARFUnitHeader::extract(), llvm::DWARFDebugNames::NameIndex::getEntry(), llvm::DWARFUnitHeader::getVersion(), llvm::DWARFDebugLine::Prologue::getVersion(), llvm::StrOffsetsContributionDescriptor::getVersion(), operator bool(), llvm::DWARFDebugLine::Prologue::parse(), and llvm::AppleAcceleratorTable::readAtoms().

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

• include/llvm/BinaryFormat/Dwarf.h