llvm::MCAssembler Class Reference

#include <MCAssembler.h>

Public Types
typedef iplist< MCSectionData >	SectionDataListType
typedef iplist< MCSymbolData >	SymbolDataListType
typedef SectionDataListType::const_iterator	const_iterator
typedef SectionDataListType::iterator	iterator
typedef SymbolDataListType::const_iterator	const_symbol_iterator
typedef SymbolDataListType::iterator	symbol_iterator
typedef std::vector< std::string >	FileNameVectorType
typedef FileNameVectorType::const_iterator	const_file_name_iterator
typedef std::vector < IndirectSymbolData > ::const_iterator	const_indirect_symbol_iterator
typedef std::vector < IndirectSymbolData > ::iterator	indirect_symbol_iterator
typedef std::vector < DataRegionData > ::const_iterator	const_data_region_iterator
typedef std::vector < DataRegionData >::iterator	data_region_iterator

Public Member Functions
uint64_t	computeFragmentSize (const MCAsmLayout &Layout, const MCFragment &F) const
const MCSymbolData *	getAtom (const MCSymbolData *Symbol) const
bool	isSymbolLinkerVisible (const MCSymbol &SD) const
void	writeSectionData (const MCSectionData *Section, const MCAsmLayout &Layout) const
	Emit the section contents using the given object writer. More...
bool	isThumbFunc (const MCSymbol *Func) const
	Check whether a given symbol has been flagged with .thumb_func. More...
void	setIsThumbFunc (const MCSymbol *Func)
	Flag a function symbol as the target of a .thumb_func directive. More...
unsigned	getELFHeaderEFlags () const
	ELF e_header flags. More...
void	setELFHeaderEFlags (unsigned Flags)
	MCAssembler (MCContext &Context_, MCAsmBackend &Backend_, MCCodeEmitter &Emitter_, MCObjectWriter &Writer_, raw_ostream &OS)
	~MCAssembler ()
void	reset ()
MCContext &	getContext () const
MCAsmBackend &	getBackend () const
MCCodeEmitter &	getEmitter () const
MCObjectWriter &	getWriter () const
void	Finish ()
bool	getSubsectionsViaSymbols () const
void	setSubsectionsViaSymbols (bool Value)
bool	getRelaxAll () const
void	setRelaxAll (bool Value)
bool	getNoExecStack () const
void	setNoExecStack (bool Value)
bool	isBundlingEnabled () const
unsigned	getBundleAlignSize () const
void	setBundleAlignSize (unsigned Size)
void	dump ()
Section List Access
const SectionDataListType &	getSectionList () const
SectionDataListType &	getSectionList ()
iterator	begin ()
const_iterator	begin () const
iterator	end ()
const_iterator	end () const
size_t	size () const
Symbol List Access
const SymbolDataListType &	getSymbolList () const
SymbolDataListType &	getSymbolList ()
symbol_iterator	symbol_begin ()
const_symbol_iterator	symbol_begin () const
symbol_iterator	symbol_end ()
const_symbol_iterator	symbol_end () const
size_t	symbol_size () const
Indirect Symbol List Access
std::vector< IndirectSymbolData > &	getIndirectSymbols ()
indirect_symbol_iterator	indirect_symbol_begin ()
const_indirect_symbol_iterator	indirect_symbol_begin () const
indirect_symbol_iterator	indirect_symbol_end ()
const_indirect_symbol_iterator	indirect_symbol_end () const
size_t	indirect_symbol_size () const
Linker Option List Access
std::vector< std::vector < std::string > > &	getLinkerOptions ()
Data Region List Access
std::vector< DataRegionData > &	getDataRegions ()
data_region_iterator	data_region_begin ()
const_data_region_iterator	data_region_begin () const
data_region_iterator	data_region_end ()
const_data_region_iterator	data_region_end () const
size_t	data_region_size () const
Backend Data Access
MCSectionData &	getSectionData (const MCSection &Section) const
MCSectionData &	getOrCreateSectionData (const MCSection &Section, bool *Created=0)
MCSymbolData &	getSymbolData (const MCSymbol &Symbol) const
MCSymbolData &	getOrCreateSymbolData (const MCSymbol &Symbol, bool *Created=0)
const_file_name_iterator	file_names_begin () const
const_file_name_iterator	file_names_end () const
void	addFileName (StringRef FileName)

Friends
class	MCAsmLayout

Detailed Description

Definition at line 807 of file MCAssembler.h.

Member Typedef Documentation

typedef std::vector<DataRegionData>::const_iterator llvm::MCAssembler::const_data_region_iterator

Definition at line 828 of file MCAssembler.h.

typedef FileNameVectorType::const_iterator llvm::MCAssembler::const_file_name_iterator

Definition at line 821 of file MCAssembler.h.

typedef std::vector<IndirectSymbolData>::const_iterator llvm::MCAssembler::const_indirect_symbol_iterator

Definition at line 824 of file MCAssembler.h.

typedef SectionDataListType::const_iterator llvm::MCAssembler::const_iterator

Definition at line 814 of file MCAssembler.h.

typedef SymbolDataListType::const_iterator llvm::MCAssembler::const_symbol_iterator

Definition at line 817 of file MCAssembler.h.

typedef std::vector<DataRegionData>::iterator llvm::MCAssembler::data_region_iterator

Definition at line 829 of file MCAssembler.h.

typedef std::vector<std::string> llvm::MCAssembler::FileNameVectorType

Definition at line 820 of file MCAssembler.h.

typedef std::vector<IndirectSymbolData>::iterator llvm::MCAssembler::indirect_symbol_iterator

Definition at line 825 of file MCAssembler.h.

typedef SectionDataListType::iterator llvm::MCAssembler::iterator

Definition at line 815 of file MCAssembler.h.

typedef iplist<MCSectionData> llvm::MCAssembler::SectionDataListType

Definition at line 811 of file MCAssembler.h.

typedef SymbolDataListType::iterator llvm::MCAssembler::symbol_iterator

Definition at line 818 of file MCAssembler.h.

typedef iplist<MCSymbolData> llvm::MCAssembler::SymbolDataListType

Definition at line 812 of file MCAssembler.h.

Constructor & Destructor Documentation

MCAssembler::MCAssembler	(	MCContext &	Context_,
		MCAsmBackend &	Backend_,
		MCCodeEmitter &	Emitter_,
		MCObjectWriter &	Writer_,
		raw_ostream &	OS
	)

Construct a new assembler instance.

Parameters

OS	The stream to output to.

Definition at line 293 of file MCAssembler.cpp.

MCAssembler::~MCAssembler

(

)

Definition at line 301 of file MCAssembler.cpp.

Member Function Documentation

void llvm::MCAssembler::addFileName ( StringRef  FileName )

inline

Definition at line 1170 of file MCAssembler.h.

References file_names_begin(), and file_names_end().

Referenced by llvm::MCELFStreamer::EmitFileDirective().

iterator llvm::MCAssembler::begin ( )

inline

Definition at line 1039 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::ComputeSymbolTable(), dump(), Finish(), llvm::MCAsmLayout::MCAsmLayout(), and llvm::MachObjectWriter::WriteObject().

const_iterator llvm::MCAssembler::begin ( ) const

inline

Definition at line 1040 of file MCAssembler.h.

uint64_t MCAssembler::computeFragmentSize	(	const MCAsmLayout &	Layout,
		const MCFragment &	F
	)		const

Compute the effective fragment size assuming it is laid out at the given SectionAddress and FragmentOffset.

Definition at line 425 of file MCAssembler.cpp.

References F(), llvm::MCFragment::FT_Align, llvm::MCFragment::FT_CompactEncodedInst, llvm::MCFragment::FT_Data, llvm::MCFragment::FT_Dwarf, llvm::MCFragment::FT_DwarfFrame, llvm::MCFragment::FT_Fill, llvm::MCFragment::FT_LEB, llvm::MCFragment::FT_Org, llvm::MCFragment::FT_Relaxable, llvm::MCAlignFragment::getAlignment(), getBackend(), llvm::MCAsmLayout::getFragmentOffset(), llvm::MCFragment::getKind(), llvm::MCAlignFragment::getMaxBytesToEmit(), llvm::MCAsmBackend::getMinimumNopSize(), llvm::MCOrgFragment::getOffset(), llvm::MCAlignFragment::hasEmitNops(), llvm_unreachable, llvm::OffsetToAlignment(), and llvm::report_fatal_error().

Referenced by llvm::MCAsmLayout::getSectionAddressSize(), llvm::MCAsmLayout::layoutFragment(), and writeFragment().

data_region_iterator llvm::MCAssembler::data_region_begin ( )

inline

Definition at line 1108 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::WriteObject().

const_data_region_iterator llvm::MCAssembler::data_region_begin ( ) const

inline

Definition at line 1111 of file MCAssembler.h.

data_region_iterator llvm::MCAssembler::data_region_end ( )

inline

Definition at line 1115 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::WriteObject().

const_data_region_iterator llvm::MCAssembler::data_region_end ( ) const

inline

Definition at line 1118 of file MCAssembler.h.

size_t llvm::MCAssembler::data_region_size ( ) const

inline

Definition at line 1122 of file MCAssembler.h.

void MCAssembler::dump

(

)

Definition at line 1156 of file MCAssembler.cpp.

References begin(), end(), llvm::errs(), symbol_begin(), and symbol_end().

Referenced by Finish().

iterator llvm::MCAssembler::end ( )

inline

Definition at line 1042 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::ComputeSymbolTable(), dump(), Finish(), llvm::MCAsmLayout::MCAsmLayout(), and llvm::MachObjectWriter::WriteObject().

const_iterator llvm::MCAssembler::end ( ) const

inline

Definition at line 1043 of file MCAssembler.h.

const_file_name_iterator llvm::MCAssembler::file_names_begin ( ) const

inline

Definition at line 1162 of file MCAssembler.h.

Referenced by addFileName().

const_file_name_iterator llvm::MCAssembler::file_names_end ( ) const

inline

Definition at line 1166 of file MCAssembler.h.

Referenced by addFileName().

void MCAssembler::Finish

(

)

Finish - Do final processing and write the object to the output stream. Writer is used for custom object writer (as the MCJIT does), if not specified it is automatically created from backend.

Definition at line 753 of file MCAssembler.cpp.

References llvm::MCAsmBackend::applyFixup(), llvm::MCSectionData::begin(), begin(), llvm::SmallVectorTemplateCommon< T, typename >::data(), DEBUG_WITH_TYPE, dump(), llvm::dyn_cast(), llvm::MCSectionData::end(), end(), llvm::errs(), llvm::MCObjectWriter::ExecutePostLayoutBinding(), llvm::MCEncodedFragmentWithFixups::fixup_begin(), llvm::MCEncodedFragmentWithFixups::fixup_end(), getBackend(), llvm::MCEncodedFragment::getContents(), getWriter(), llvm::MCSectionData::setLayoutOrder(), llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::raw_ostream::tell(), and llvm::MCObjectWriter::WriteObject().

Referenced by llvm::MCObjectStreamer::FinishImpl().

const MCSymbolData * MCAssembler::getAtom

(

const MCSymbolData *

Symbol

)

const

Find the symbol which defines the atom containing the given symbol, or null if there is no such symbol.

Definition at line 336 of file MCAssembler.cpp.

References llvm::MCFragment::getAtom(), getBackend(), llvm::MCSymbolData::getFragment(), llvm::MCFragment::getParent(), llvm::MCSectionData::getSection(), llvm::MCSymbolData::getSymbol(), llvm::MCAsmBackend::isSectionAtomizable(), and isSymbolLinkerVisible().

MCAsmBackend& llvm::MCAssembler::getBackend ( ) const

inline

Definition at line 994 of file MCAssembler.h.

Referenced by computeFragmentSize(), llvm::MCObjectStreamer::EmitInstruction(), Finish(), getAtom(), llvm::MachObjectWriter::isFixupKindPCRel(), isSymbolLinkerVisible(), llvm::MachObjectWriter::IsSymbolRefDifferenceFullyResolvedImpl(), reset(), writeFragment(), and llvm::MCObjectStreamer::~MCObjectStreamer().

unsigned llvm::MCAssembler::getBundleAlignSize ( ) const

inline

Definition at line 1023 of file MCAssembler.h.

Referenced by llvm::MCAsmLayout::layoutFragment(), and writeFragment().

MCContext& llvm::MCAssembler::getContext ( ) const

inline

Definition at line 992 of file MCAssembler.h.

Referenced by llvm::MCELFStreamer::EmitCommonSymbol(), llvm::MCELFStreamer::EmitIdent(), and llvm::PPCMCExpr::EvaluateAsRelocatableImpl().

std::vector<DataRegionData>& llvm::MCAssembler::getDataRegions ( )

inline

Definition at line 1104 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::WriteObject().

unsigned llvm::MCAssembler::getELFHeaderEFlags ( ) const

inline

ELF e_header flags.

Definition at line 971 of file MCAssembler.h.

MCCodeEmitter& llvm::MCAssembler::getEmitter ( ) const

inline

Definition at line 996 of file MCAssembler.h.

Referenced by llvm::AMDGPUAsmPrinter::EmitInstruction(), llvm::MCObjectStreamer::EmitInstToFragment(), reset(), and llvm::MCObjectStreamer::~MCObjectStreamer().

std::vector<IndirectSymbolData>& llvm::MCAssembler::getIndirectSymbols ( )

inline

Definition at line 1069 of file MCAssembler.h.

Referenced by llvm::MCELFStreamer::EmitSymbolAttribute().

std::vector<std::vector<std::string> >& llvm::MCAssembler::getLinkerOptions ( )

inline

Definition at line 1093 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::WriteObject().

bool llvm::MCAssembler::getNoExecStack ( ) const

inline

Definition at line 1016 of file MCAssembler.h.

MCSectionData& llvm::MCAssembler::getOrCreateSectionData ( const MCSection &  Section, bool *  Created = 0  )

inline

Definition at line 1134 of file MCAssembler.h.

References llvm::ARMBuildAttrs::Section.

Referenced by llvm::MCObjectStreamer::ChangeSection(), and llvm::MCELFStreamer::Flush().

MCSymbolData& llvm::MCAssembler::getOrCreateSymbolData ( const MCSymbol &  Symbol, bool *  Created = 0  )

inline

Definition at line 1151 of file MCAssembler.h.

References llvm::ARMBuildAttrs::Symbol.

Referenced by llvm::MCObjectStreamer::AddValueSymbols(), AddValueSymbols_(), AddValueSymbolsImpl(), llvm::MachObjectWriter::BindIndirectSymbols(), llvm::MCELFStreamer::ChangeSection(), llvm::MCObjectStreamer::EmitAssignment(), llvm::MCELFStreamer::EmitCommonSymbol(), llvm::MCELFStreamer::EmitELFSize(), llvm::MCObjectStreamer::EmitLabel(), llvm::MCELFStreamer::EmitLocalCommonSymbol(), llvm::MCELFStreamer::EmitSymbolAttribute(), llvm::MCELFStreamer::EmitWeakReference(), fixELFSymbolsInTLSFixupsImpl(), and llvm::MCELFStreamer::getOrCreateSymbolData().

bool llvm::MCAssembler::getRelaxAll ( ) const

inline

Definition at line 1013 of file MCAssembler.h.

References RelaxAll().

Referenced by llvm::MCObjectStreamer::EmitInstruction().

MCSectionData& llvm::MCAssembler::getSectionData ( const MCSection &  Section ) const

inline

Definition at line 1128 of file MCAssembler.h.

const SectionDataListType& llvm::MCAssembler::getSectionList ( ) const

inline

Definition at line 1036 of file MCAssembler.h.

Referenced by llvm::MCSectionData::MCSectionData().

SectionDataListType& llvm::MCAssembler::getSectionList ( )

inline

Definition at line 1037 of file MCAssembler.h.

bool llvm::MCAssembler::getSubsectionsViaSymbols ( ) const

inline

Definition at line 1006 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::IsSymbolRefDifferenceFullyResolvedImpl(), and llvm::MachObjectWriter::WriteObject().

MCSymbolData& llvm::MCAssembler::getSymbolData ( const MCSymbol &  Symbol ) const

inline

Definition at line 1145 of file MCAssembler.h.

Referenced by llvm::MCELFStreamer::EmitLabel(), llvm::MachObjectWriter::getSymbolAddress(), llvm::MCAsmLayout::getSymbolOffset(), llvm::MCObjectWriter::IsSymbolRefDifferenceFullyResolved(), llvm::MachObjectWriter::IsSymbolRefDifferenceFullyResolvedImpl(), NeedsMatchingLo(), and llvm::MachObjectWriter::WriteObject().

const SymbolDataListType& llvm::MCAssembler::getSymbolList ( ) const

inline

Definition at line 1051 of file MCAssembler.h.

Referenced by llvm::MCSymbolData::MCSymbolData().

SymbolDataListType& llvm::MCAssembler::getSymbolList ( )

inline

Definition at line 1052 of file MCAssembler.h.

MCObjectWriter& llvm::MCAssembler::getWriter ( ) const

inline

Definition at line 998 of file MCAssembler.h.

Referenced by Finish(), reset(), writeFragment(), writeSectionData(), and llvm::MCObjectStreamer::~MCObjectStreamer().

indirect_symbol_iterator llvm::MCAssembler::indirect_symbol_begin ( )

inline

Definition at line 1073 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::BindIndirectSymbols(), and llvm::MachObjectWriter::WriteObject().

const_indirect_symbol_iterator llvm::MCAssembler::indirect_symbol_begin ( ) const

inline

Definition at line 1076 of file MCAssembler.h.

indirect_symbol_iterator llvm::MCAssembler::indirect_symbol_end ( )

inline

Definition at line 1080 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::BindIndirectSymbols(), and llvm::MachObjectWriter::WriteObject().

const_indirect_symbol_iterator llvm::MCAssembler::indirect_symbol_end ( ) const

inline

Definition at line 1083 of file MCAssembler.h.

size_t llvm::MCAssembler::indirect_symbol_size ( ) const

inline

Definition at line 1087 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::WriteObject().

bool llvm::MCAssembler::isBundlingEnabled ( ) const

inline

Definition at line 1019 of file MCAssembler.h.

Referenced by llvm::MCObjectStreamer::EmitInstruction(), llvm::MCObjectStreamer::getOrCreateDataFragment(), llvm::MCAsmLayout::layoutFragment(), and writeFragment().

bool MCAssembler::isSymbolLinkerVisible

(

const MCSymbol &

SD

)

const

Check whether a particular symbol is visible to the linker and is required in the symbol table, or whether it can be discarded by the assembler. This also effects whether the assembler treats the label as potentially defining a separate atom.

Definition at line 323 of file MCAssembler.cpp.

References llvm::MCAsmBackend::doesSectionRequireSymbols(), getBackend(), llvm::MCSymbol::getSection(), llvm::MCSymbol::isInSection(), and llvm::MCSymbol::isTemporary().

Referenced by llvm::MachObjectWriter::ComputeSymbolTable(), and getAtom().

bool llvm::MCAssembler::isThumbFunc ( const MCSymbol *  Func ) const

inline

Check whether a given symbol has been flagged with .thumb_func.

Definition at line 963 of file MCAssembler.h.

References llvm::SmallPtrSet< PtrType, SmallSize >::count().

void MCAssembler::reset

(

)

Reuse an assembler instance

Definition at line 304 of file MCAssembler.cpp.

References getBackend(), getEmitter(), getWriter(), llvm::MCCodeEmitter::reset(), llvm::MCAsmBackend::reset(), and llvm::MCObjectWriter::reset().

Referenced by llvm::MCObjectStreamer::reset().

void llvm::MCAssembler::setBundleAlignSize ( unsigned  Size )

inline

Definition at line 1027 of file MCAssembler.h.

void llvm::MCAssembler::setELFHeaderEFlags ( unsigned  Flags )

inline

Definition at line 972 of file MCAssembler.h.

Referenced by llvm::MipsTargetELFStreamer::emitMipsHackELFFlags().

void llvm::MCAssembler::setIsThumbFunc ( const MCSymbol *  Func )

inline

Flag a function symbol as the target of a .thumb_func directive.

Definition at line 968 of file MCAssembler.h.

void llvm::MCAssembler::setNoExecStack ( bool  Value )

inline

Definition at line 1017 of file MCAssembler.h.

Referenced by llvm::createELFStreamer().

void llvm::MCAssembler::setRelaxAll ( bool  Value )

inline

Definition at line 1014 of file MCAssembler.h.

References RelaxAll().

Referenced by llvm::createELFStreamer().

void llvm::MCAssembler::setSubsectionsViaSymbols ( bool  Value )

inline

Definition at line 1009 of file MCAssembler.h.

Referenced by llvm::MCELFStreamer::EmitAssemblerFlag().

size_t llvm::MCAssembler::size ( ) const

inline

Definition at line 1045 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::WriteObject().

symbol_iterator llvm::MCAssembler::symbol_begin ( )

inline

Definition at line 1054 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::ComputeSymbolTable(), dump(), and llvm::MachObjectWriter::markAbsoluteVariableSymbols().

const_symbol_iterator llvm::MCAssembler::symbol_begin ( ) const

inline

Definition at line 1055 of file MCAssembler.h.

symbol_iterator llvm::MCAssembler::symbol_end ( )

inline

Definition at line 1057 of file MCAssembler.h.

Referenced by llvm::MachObjectWriter::ComputeSymbolTable(), dump(), and llvm::MachObjectWriter::markAbsoluteVariableSymbols().

const_symbol_iterator llvm::MCAssembler::symbol_end ( ) const

inline

Definition at line 1058 of file MCAssembler.h.

size_t llvm::MCAssembler::symbol_size ( ) const

inline

Definition at line 1060 of file MCAssembler.h.

void MCAssembler::writeSectionData	(	const MCSectionData *	Section,
		const MCAsmLayout &	Layout
	)		const

Emit the section contents using the given object writer.

Definition at line 685 of file MCAssembler.cpp.

References llvm::MCSectionData::begin(), llvm::MCSectionData::end(), llvm::MCDataFragment::fixup_begin(), llvm::MCDataFragment::fixup_end(), llvm::MCFragment::FT_Align, llvm::MCFragment::FT_Data, llvm::MCFragment::FT_Fill, llvm::MCDataFragment::getContents(), llvm::MCSectionData::getSection(), llvm::MCAsmLayout::getSectionAddressSize(), llvm::MCAsmLayout::getSectionFileSize(), llvm::MCObjectWriter::getStream(), getWriter(), llvm::MCSection::isVirtualSection(), llvm_unreachable, llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::raw_ostream::tell(), and writeFragment().

Referenced by llvm::MachObjectWriter::WriteObject().

Friends And Related Function Documentation

friend class MCAsmLayout

friend

Definition at line 808 of file MCAssembler.h.

---

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

• MCAssembler.h
• MCAssembler.cpp