#include <MCMachObjectWriter.h>

Inheritance diagram for llvm::MachObjectWriter:

Collaboration diagram for llvm::MachObjectWriter:

Public Member Functions
	MachObjectWriter (MCMachObjectTargetWriter *MOTW, raw_ostream &_OS, bool _IsLittleEndian)

void	WriteHeader (unsigned NumLoadCommands, unsigned LoadCommandsSize, bool SubsectionsViaSymbols)

void	WriteSegmentLoadCommand (unsigned NumSections, uint64_t VMSize, uint64_t SectionDataStartOffset, uint64_t SectionDataSize)

void	WriteSection (const MCAssembler &Asm, const MCAsmLayout &Layout, const MCSectionData &SD, uint64_t FileOffset, uint64_t RelocationsStart, unsigned NumRelocations)

void	WriteSymtabLoadCommand (uint32_t SymbolOffset, uint32_t NumSymbols, uint32_t StringTableOffset, uint32_t StringTableSize)

void	WriteDysymtabLoadCommand (uint32_t FirstLocalSymbol, uint32_t NumLocalSymbols, uint32_t FirstExternalSymbol, uint32_t NumExternalSymbols, uint32_t FirstUndefinedSymbol, uint32_t NumUndefinedSymbols, uint32_t IndirectSymbolOffset, uint32_t NumIndirectSymbols)

void	WriteNlist (MachSymbolData &MSD, const MCAsmLayout &Layout)

void	WriteLinkeditLoadCommand (uint32_t Type, uint32_t DataOffset, uint32_t DataSize)

void	WriteLinkerOptionsLoadCommand (const std::vector< std::string > &Options)

void	addRelocation (const MCSectionData *SD, MachO::any_relocation_info &MRE)

void	RecordScatteredRelocation (const MCAssembler &Asm, const MCAsmLayout &Layout, const MCFragment *Fragment, const MCFixup &Fixup, MCValue Target, unsigned Log2Size, uint64_t &FixedValue)

void	RecordTLVPRelocation (const MCAssembler &Asm, const MCAsmLayout &Layout, const MCFragment *Fragment, const MCFixup &Fixup, MCValue Target, uint64_t &FixedValue)

void	RecordRelocation (const MCAssembler &Asm, const MCAsmLayout &Layout, const MCFragment *Fragment, const MCFixup &Fixup, MCValue Target, uint64_t &FixedValue)
	Record a relocation entry. More...

void	BindIndirectSymbols (MCAssembler &Asm)

void	ComputeSymbolTable (MCAssembler &Asm, SmallString< 256 > &StringTable, std::vector< MachSymbolData > &LocalSymbolData, std::vector< MachSymbolData > &ExternalSymbolData, std::vector< MachSymbolData > &UndefinedSymbolData)

void	computeSectionAddresses (const MCAssembler &Asm, const MCAsmLayout &Layout)

void	markAbsoluteVariableSymbols (MCAssembler &Asm, const MCAsmLayout &Layout)

void	ExecutePostLayoutBinding (MCAssembler &Asm, const MCAsmLayout &Layout)
	Perform any late binding of symbols (for example, to assign symbol indices for use when generating relocations). More...

virtual bool	IsSymbolRefDifferenceFullyResolvedImpl (const MCAssembler &Asm, const MCSymbolData &DataA, const MCFragment &FB, bool InSet, bool IsPCRel) const

void	WriteObject (MCAssembler &Asm, const MCAsmLayout &Layout)
	Write the object file. More...

Lifetime management Methods
virtual void	reset ()
	lifetime management More...

Target Writer Proxy Accessors
bool	is64Bit () const

bool	isARM () const

Public Member Functions inherited from llvm::MCObjectWriter
virtual	~MCObjectWriter ()

bool	isLittleEndian () const

raw_ostream &	getStream ()

bool	IsSymbolRefDifferenceFullyResolved (const MCAssembler &Asm, const MCSymbolRefExpr A, const MCSymbolRefExpr B, bool InSet) const
	Check whether the difference (A - B) between two symbol references is fully resolved. More...

void	Write8 (uint8_t Value)

void	WriteLE16 (uint16_t Value)

void	WriteLE32 (uint32_t Value)

void	WriteLE64 (uint64_t Value)

void	WriteBE16 (uint16_t Value)

void	WriteBE32 (uint32_t Value)

void	WriteBE64 (uint64_t Value)

void	Write16 (uint16_t Value)

void	Write32 (uint32_t Value)

void	Write64 (uint64_t Value)

void	WriteZeros (unsigned N)

void	WriteBytes (const SmallVectorImpl< char > &ByteVec, unsigned ZeroFillSize=0)

void	WriteBytes (StringRef Str, unsigned ZeroFillSize=0)

Utility Methods
SectionAddrMap	SectionAddress

bool	isFixupKindPCRel (const MCAssembler &Asm, unsigned Kind)

SectionAddrMap &	getSectionAddressMap ()

uint64_t	getSectionAddress (const MCSectionData *SD) const

uint64_t	getSymbolAddress (const MCSymbolData *SD, const MCAsmLayout &Layout) const

uint64_t	getFragmentAddress (const MCFragment *Fragment, const MCAsmLayout &Layout) const

uint64_t	getPaddingSize (const MCSectionData *SD, const MCAsmLayout &Layout) const

bool	doesSymbolRequireExternRelocation (const MCSymbolData *SD)

Additional Inherited Members
Protected Member Functions inherited from llvm::MCObjectWriter
	MCObjectWriter (raw_ostream &_OS, bool _IsLittleEndian)

Protected Attributes inherited from llvm::MCObjectWriter
raw_ostream &	OS

unsigned	IsLittleEndian: 1

Detailed Description

Definition at line 82 of file MCMachObjectWriter.h.

Constructor & Destructor Documentation

llvm::MachObjectWriter::MachObjectWriter	(	MCMachObjectTargetWriter *	MOTW,
		raw_ostream &	_OS,
		bool	_IsLittleEndian
	)

inline

Definition at line 116 of file MCMachObjectWriter.h.

Member Function Documentation

void llvm::MachObjectWriter::addRelocation	(	const MCSectionData *	SD,
		MachO::any_relocation_info &	MRE
	)

inline

Definition at line 214 of file MCMachObjectWriter.h.

void MachObjectWriter::BindIndirectSymbols ( MCAssembler & Asm )

Definition at line 425 of file MachObjectWriter.cpp.

References llvm::MCSymbolData::getFlags(), llvm::MCSymbol::getName(), llvm::MCAssembler::getOrCreateSymbolData(), llvm::MCSectionMachO::getType(), llvm::MCAssembler::indirect_symbol_begin(), llvm::MCAssembler::indirect_symbol_end(), llvm::report_fatal_error(), llvm::MachO::S_LAZY_SYMBOL_POINTERS, llvm::MachO::S_NON_LAZY_SYMBOL_POINTERS, llvm::MachO::S_SYMBOL_STUBS, llvm::ARMBuildAttrs::Section, llvm::MCSymbolData::setFlags(), and llvm::ARMBuildAttrs::Symbol.

Referenced by ExecutePostLayoutBinding().

void MachObjectWriter::computeSectionAddresses	(	const MCAssembler &	Asm,
		const MCAsmLayout &	Layout
	)

strictly be necessary.

Definition at line 604 of file MachObjectWriter.cpp.

References llvm::MCSectionData::getAlignment(), getPaddingSize(), llvm::MCAsmLayout::getSectionAddressSize(), llvm::MCAsmLayout::getSectionOrder(), llvm::RoundUpToAlignment(), SectionAddress, and llvm::SmallVectorTemplateCommon< T >::size().

Referenced by ExecutePostLayoutBinding().

void MachObjectWriter::ComputeSymbolTable	(	MCAssembler &	Asm,
		SmallString< 256 > &	StringTable,
		std::vector< MachSymbolData > &	LocalSymbolData,
		std::vector< MachSymbolData > &	ExternalSymbolData,
		std::vector< MachSymbolData > &	UndefinedSymbolData
	)

ComputeSymbolTable - Compute the symbol table data

Parameters

StringTable [out] - The string table data.

ComputeSymbolTable - Compute the symbol table data

Parameters

StringTable	[out] - The string table data.
StringIndexMap	[out] - Map from symbol names to offsets in the string table.

Definition at line 495 of file MachObjectWriter.cpp.

References llvm::MCAssembler::begin(), llvm::MCAssembler::end(), llvm::MCSymbol::getName(), llvm::MCSymbol::getSection(), llvm::MCSymbol::isAbsolute(), llvm::MCAssembler::isSymbolLinkerVisible(), llvm::MCSymbol::isUndefined(), llvm::DenseMapBase< DenseMap< KeyT, ValueT, KeyInfoT >, KeyT, ValueT, KeyInfoT >::lookup(), llvm::SmallVectorTemplateBase< T, isPodLike >::push_back(), llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::ARMBuildAttrs::Symbol, llvm::MCAssembler::symbol_begin(), and llvm::MCAssembler::symbol_end().

Referenced by ExecutePostLayoutBinding().

bool MachObjectWriter::doesSymbolRequireExternRelocation ( const MCSymbolData * SD )

Definition at line 40 of file MachObjectWriter.cpp.

References llvm::MCSymbolData::getFlags(), llvm::MCSymbol::isUndefined(), llvm::SF_WeakDefinition, and llvm::MCSymbolData::Symbol.

void MachObjectWriter::ExecutePostLayoutBinding	(	MCAssembler &	Asm,
		const MCAsmLayout &	Layout
	)

virtual

Perform any late binding of symbols (for example, to assign symbol indices for use when generating relocations).

This routine is called by the assembler after layout and relaxation is complete.

Implements llvm::MCObjectWriter.

Definition at line 641 of file MachObjectWriter.cpp.

References BindIndirectSymbols(), computeSectionAddresses(), ComputeSymbolTable(), and markAbsoluteVariableSymbols().

uint64_t MachObjectWriter::getFragmentAddress	(	const MCFragment *	Fragment,
		const MCAsmLayout &	Layout
	)		const

Definition at line 67 of file MachObjectWriter.cpp.

References llvm::MCAsmLayout::getFragmentOffset(), llvm::MCFragment::getParent(), and getSectionAddress().

uint64_t MachObjectWriter::getPaddingSize	(	const MCSectionData *	SD,
		const MCAsmLayout &	Layout
	)		const

Definition at line 111 of file MachObjectWriter.cpp.

References llvm::MCSectionData::getAlignment(), llvm::MCSectionData::getLayoutOrder(), llvm::MCSectionData::getSection(), getSectionAddress(), llvm::MCAsmLayout::getSectionAddressSize(), llvm::MCAsmLayout::getSectionOrder(), llvm::MCSection::isVirtualSection(), and llvm::OffsetToAlignment().

Referenced by computeSectionAddresses(), and WriteObject().

uint64_t llvm::MachObjectWriter::getSectionAddress ( const MCSectionData * SD ) const

inline

Definition at line 137 of file MCMachObjectWriter.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::lookup(), and SectionAddress.

Referenced by getFragmentAddress(), getPaddingSize(), getSymbolAddress(), WriteObject(), and WriteSection().

SectionAddrMap& llvm::MachObjectWriter::getSectionAddressMap ( )

inline

Definition at line 135 of file MCMachObjectWriter.h.

References SectionAddress.

uint64_t MachObjectWriter::getSymbolAddress	(	const MCSymbolData *	SD,
		const MCAsmLayout &	Layout
	)		const

bool llvm::MachObjectWriter::is64Bit ( ) const

inline

Definition at line 156 of file MCMachObjectWriter.h.

Referenced by WriteHeader(), WriteLinkerOptionsLoadCommand(), WriteNlist(), WriteObject(), WriteSection(), and WriteSegmentLoadCommand().

bool llvm::MachObjectWriter::isARM ( ) const

inline

Definition at line 157 of file MCMachObjectWriter.h.

References llvm::MachO::CPU_TYPE_ARM.

bool MachObjectWriter::isFixupKindPCRel	(	const MCAssembler &	Asm,
		unsigned	Kind
	)

Definition at line 60 of file MachObjectWriter.cpp.

References llvm::MCFixupKindInfo::FKF_IsPCRel, llvm::MCFixupKindInfo::Flags, llvm::MCAssembler::getBackend(), and llvm::MCAsmBackend::getFixupKindInfo().

bool MachObjectWriter::IsSymbolRefDifferenceFullyResolvedImpl	(	const MCAssembler &	Asm,
		const MCSymbolData &	DataA,
		const MCFragment &	FB,
		bool	InSet,
		bool	IsPCRel
	)		const

virtual

Reimplemented from llvm::MCObjectWriter.

Definition at line 658 of file MachObjectWriter.cpp.

References llvm::MCSymbol::AliasedSymbol(), llvm::MCFragment::getAtom(), llvm::MCAssembler::getBackend(), llvm::MCSymbolData::getFragment(), llvm::MCFragment::getParent(), llvm::MCSymbol::getSection(), llvm::MCSectionData::getSection(), llvm::MCAssembler::getSubsectionsViaSymbols(), llvm::MCSymbolData::getSymbol(), llvm::MCAssembler::getSymbolData(), llvm::MCAsmBackend::hasReliableSymbolDifference(), llvm::MCSymbol::isInSection(), and llvm::MCSymbol::isTemporary().

void MachObjectWriter::markAbsoluteVariableSymbols	(	MCAssembler &	Asm,
		const MCAsmLayout &	Layout
	)

Definition at line 621 of file MachObjectWriter.cpp.

References llvm::MCExpr::EvaluateAsRelocatable(), llvm::MCValue::getSymA(), llvm::MCValue::getSymB(), llvm::MCSymbolData::getSymbol(), llvm::MCSymbol::getVariableValue(), llvm::MCSymbol::isVariable(), llvm::MCAssembler::symbol_begin(), and llvm::MCAssembler::symbol_end().

Referenced by ExecutePostLayoutBinding().

void MachObjectWriter::RecordRelocation	(	const MCAssembler &	Asm,
		const MCAsmLayout &	Layout,
		const MCFragment *	Fragment,
		const MCFixup &	Fixup,
		MCValue	Target,
		uint64_t &	FixedValue
	)

virtual

Record a relocation entry.

This routine is called by the assembler after layout and relaxation, and post layout binding. The implementation is responsible for storing information about the relocation so that it can be emitted during WriteObject().

Implements llvm::MCObjectWriter.

Definition at line 415 of file MachObjectWriter.cpp.

void llvm::MachObjectWriter::RecordScatteredRelocation	(	const MCAssembler &	Asm,
		const MCAsmLayout &	Layout,
		const MCFragment *	Fragment,
		const MCFixup &	Fixup,
		MCValue	Target,
		unsigned	Log2Size,
		uint64_t &	FixedValue
	)

void llvm::MachObjectWriter::RecordTLVPRelocation	(	const MCAssembler &	Asm,
		const MCAsmLayout &	Layout,
		const MCFragment *	Fragment,
		const MCFixup &	Fixup,
		MCValue	Target,
		uint64_t &	FixedValue
	)

void MachObjectWriter::reset ( )

virtual

lifetime management

Reimplemented from llvm::MCObjectWriter.

Definition at line 29 of file MachObjectWriter.cpp.

References llvm::SmallVectorImpl< T >::clear(), and llvm::MCObjectWriter::reset().

void MachObjectWriter::WriteDysymtabLoadCommand	(	uint32_t	FirstLocalSymbol,
		uint32_t	NumLocalSymbols,
		uint32_t	FirstExternalSymbol,
		uint32_t	NumExternalSymbols,
		uint32_t	FirstUndefinedSymbol,
		uint32_t	NumUndefinedSymbols,
		uint32_t	IndirectSymbolOffset,
		uint32_t	NumIndirectSymbols
	)

Definition at line 267 of file MachObjectWriter.cpp.

References llvm::MCObjectWriter::OS, llvm::raw_ostream::tell(), and llvm::MCObjectWriter::Write32().

Referenced by WriteObject().

void MachObjectWriter::WriteHeader	(	unsigned	NumLoadCommands,
		unsigned	LoadCommandsSize,
		bool	SubsectionsViaSymbols
	)

Definition at line 124 of file MachObjectWriter.cpp.

References is64Bit(), llvm::MachO::MH_OBJECT, llvm::MachO::MH_SUBSECTIONS_VIA_SYMBOLS, llvm::MCObjectWriter::OS, llvm::raw_ostream::tell(), and llvm::MCObjectWriter::Write32().

Referenced by WriteObject().

void MachObjectWriter::WriteLinkeditLoadCommand	(	uint32_t	Type,
		uint32_t	DataOffset,
		uint32_t	DataSize
	)

Definition at line 367 of file MachObjectWriter.cpp.

References llvm::MCObjectWriter::OS, llvm::raw_ostream::tell(), and llvm::MCObjectWriter::Write32().

Referenced by WriteObject().

void MachObjectWriter::WriteLinkerOptionsLoadCommand ( const std::vector< std::string > & Options )

Definition at line 390 of file MachObjectWriter.cpp.

References ComputeLinkerOptionsLoadCommandSize(), is64Bit(), llvm::OffsetToAlignment(), llvm::MCObjectWriter::OS, llvm::raw_ostream::tell(), llvm::MCObjectWriter::Write32(), and llvm::MCObjectWriter::WriteBytes().

Referenced by WriteObject().

void MachObjectWriter::WriteNlist	(	MachSymbolData &	MSD,
		const MCAsmLayout &	Layout
	)

void MachObjectWriter::WriteObject	(	MCAssembler &	Asm,
		const MCAsmLayout &	Layout
	)

virtual

Write the object file.

This routine is called by the assembler after layout and relaxation is complete, fixups have been evaluated and applied, and relocations generated.

Implements llvm::MCObjectWriter.

Definition at line 736 of file MachObjectWriter.cpp.

void MachObjectWriter::WriteSection	(	const MCAssembler &	Asm,
		const MCAsmLayout &	Layout,
		const MCSectionData &	SD,
		uint64_t	FileOffset,
		uint64_t	RelocationsStart,
		unsigned	NumRelocations
	)