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"

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

Public Attributes
uint16_t	Version
uint8_t	AddrSize
DwarfFormat	Format
bool	DwarfUsesRelocationsAcrossSections = false
	True if DWARF v2 output generally uses relocations for references to other .debug_* sections.

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 1077 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 1095 of file Dwarf.h.

References Format, and llvm::dwarf::getDwarfOffsetByteSize().

Referenced by llvm::dwarf_linker::parallel::SectionDescriptor::apply(), llvm::dwarf_linker::parallel::OutputSections::applyPatches(), llvm::dwarf_linker::parallel::SectionDescriptor::applySLEB128(), llvm::dwarf_linker::parallel::SectionDescriptor::applyULEB128(), llvm::dwarf_linker::parallel::CompileUnit::cloneDieAttrExpression(), llvm::dwarf_linker::parallel::DebugLineSectionEmitter::emit(), llvm::DWARFYAML::emitDebugInfo(), llvm::dwarf_linker::parallel::DwarfUnit::emitDebugStringOffsetSection(), llvm::DWARFUnitHeader::extract(), llvm::DWARFUnitHeader::getDwarfOffsetByteSize(), llvm::StrOffsetsContributionDescriptor::getDwarfOffsetByteSize(), llvm::dwarf::getFixedFormByteSize(), getRefAddrByteSize(), llvm::DIEExpr::sizeOf(), llvm::DIELabel::sizeOf(), llvm::DIEDelta::sizeOf(), llvm::DIELocList::sizeOf(), and writeDIE().

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 1088 of file Dwarf.h.

References AddrSize, getDwarfOffsetByteSize(), and Version.

Referenced by llvm::dwarf_linker::parallel::SectionDescriptor::apply(), llvm::dwarf::getFixedFormByteSize(), llvm::DWARFUnitHeader::getRefAddrByteSize(), llvm::DIEEntry::sizeOf(), and writeDIE().

operator bool()

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

inlineexplicit

Definition at line 1099 of file Dwarf.h.

References AddrSize, and Version.

Member Data Documentation

AddrSize

uint8_t llvm::dwarf::FormParams::AddrSize

Definition at line 1079 of file Dwarf.h.

Referenced by llvm::dwarf_linker::parallel::CompileUnit::cloneAndEmitLineTable(), llvm::DWARFUnitHeader::extract(), llvm::DWARFUnitHeader::getAddressByteSize(), llvm::DWARFDebugLine::Prologue::getAddressSize(), llvm::dwarf::getFixedFormByteSize(), getRefAddrByteSize(), llvm::dwarf_linker::parallel::DWARFLinkerImpl::link(), llvm::dwarf_linker::parallel::DWARFLinkerImpl::LinkContext::LinkContext(), operator bool(), llvm::DWARFDebugLine::Prologue::parse(), llvm::DIELabel::sizeOf(), and writeDIE().

DwarfUsesRelocationsAcrossSections

bool llvm::dwarf::FormParams::DwarfUsesRelocationsAcrossSections = false

True if DWARF v2 output generally uses relocations for references to other .debug_* sections.

Definition at line 1083 of file Dwarf.h.

Referenced by llvm::DIEString::sizeOf().

Format

DwarfFormat llvm::dwarf::FormParams::Format

Definition at line 1080 of file Dwarf.h.

Referenced by llvm::dwarf_linker::parallel::DIEAttributeCloner::cloneBlockAttr(), llvm::DWARFDebugLine::Prologue::dump(), llvm::dwarf_linker::classic::DwarfStreamer::emitLineTableForUnit(), llvm::DWARFUnitHeader::extract(), llvm::dwarf_linker::parallel::OutputSections::getDebugAddrHeaderSize(), llvm::dwarf_linker::parallel::OutputSections::getDebugStrOffsetsHeaderSize(), getDwarfOffsetByteSize(), llvm::DWARFUnitHeader::getFormat(), llvm::StrOffsetsContributionDescriptor::getFormat(), llvm::DWARFUnitHeader::getUnitLengthFieldByteSize(), llvm::DWARFDebugLine::Prologue::isDWARF64(), llvm::DWARFDebugLine::Prologue::parse(), and llvm::DIELocList::sizeOf().

Version

uint16_t llvm::dwarf::FormParams::Version

Definition at line 1078 of file Dwarf.h.

Referenced by llvm::dwarf_linker::parallel::OutputSections::applyPatches(), llvm::DWARFUnitHeader::extract(), llvm::dwarf_linker::parallel::OutputSections::getDebugAddrHeaderSize(), llvm::dwarf_linker::parallel::OutputSections::getDebugInfoHeaderSize(), llvm::dwarf_linker::parallel::OutputSections::getDebugStrOffsetsHeaderSize(), llvm::DWARFDebugNames::NameIndex::getEntry(), getRefAddrByteSize(), llvm::DWARFDebugLine::Prologue::getVersion(), llvm::DWARFUnitHeader::getVersion(), llvm::StrOffsetsContributionDescriptor::getVersion(), llvm::dwarf_linker::parallel::OutputSections::getVersion(), llvm::dwarf_linker::parallel::DWARFLinkerImpl::LinkContext::LinkContext(), operator bool(), and llvm::DWARFDebugLine::Prologue::parse().

---

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

• include/llvm/BinaryFormat/Dwarf.h