#include <RuntimeDyldImpl.h>

Inheritance diagram for llvm::RuntimeDyldImpl:

Collaboration diagram for llvm::RuntimeDyldImpl:

Public Member Functions
	RuntimeDyldImpl (RTDyldMemoryManager *mm)
virtual	~RuntimeDyldImpl ()
void	setProcessAllSections (bool ProcessAllSections)
void	setRuntimeDyldChecker (RuntimeDyldCheckerImpl *Checker)
std::unique_ptr< ObjectImage >	loadObject (std::unique_ptr< ObjectImage > InputObject)
uint8_t *	getSymbolAddress (StringRef Name) const
uint64_t	getSymbolLoadAddress (StringRef Name) const
void	resolveRelocations ()
void	reassignSectionAddress (unsigned SectionID, uint64_t Addr)
void	mapSectionAddress (const void *LocalAddress, uint64_t TargetAddress)
bool	hasError ()
void	clearError ()
StringRef	getErrorString ()
virtual bool	isCompatibleFormat (const ObjectBuffer *Buffer) const =0
virtual bool	isCompatibleFile (const ObjectFile *Obj) const =0
virtual void	registerEHFrames ()
virtual void	deregisterEHFrames ()
virtual void	finalizeLoad (ObjectImage &ObjImg, ObjSectionToIDMap &SectionMap)
Protected Types
typedef SmallVector < SectionEntry, 64 >	SectionList
typedef unsigned	SID
typedef std::map< SectionRef, unsigned >	ObjSectionToIDMap
typedef std::pair< unsigned, uintptr_t >	SymbolLoc
typedef StringMap< SymbolLoc >	SymbolTableMap
typedef std::pair< unsigned, unsigned >	CommonSymbolInfo
typedef std::map< SymbolRef, CommonSymbolInfo >	CommonSymbolMap
typedef SmallVector < RelocationEntry, 64 >	RelocationList
typedef std::map < RelocationValueRef, uintptr_t >	StubMap
Protected Member Functions
virtual unsigned	getMaxStubSize ()=0
virtual unsigned	getStubAlignment ()=0
bool	Error (const Twine &Msg)
uint64_t	getSectionLoadAddress (unsigned SectionID) const
uint8_t *	getSectionAddress (unsigned SectionID) const
void	writeInt16BE (uint8_t *Addr, uint16_t Value)
void	writeInt32BE (uint8_t *Addr, uint32_t Value)
void	writeInt64BE (uint8_t *Addr, uint64_t Value)
uint64_t	readBytesUnaligned (uint8_t *Src, unsigned Size) const
	Endian-aware read Read the least significant Size bytes from Src.
void	writeBytesUnaligned (uint64_t Value, uint8_t *Dst, unsigned Size) const
void	emitCommonSymbols (ObjectImage &Obj, const CommonSymbolMap &CommonSymbols, uint64_t TotalSize, SymbolTableMap &SymbolTable)
	Given the common symbols discovered in the object file, emit a new section for them and update the symbol mappings in the object and symbol table.
unsigned	emitSection (ObjectImage &Obj, const SectionRef &Section, bool IsCode)
	Emits section data from the object file to the MemoryManager.
unsigned	findOrEmitSection (ObjectImage &Obj, const SectionRef &Section, bool IsCode, ObjSectionToIDMap &LocalSections)
	Find Section in LocalSections. If the secton is not found - emit it and store in LocalSections.
void	addRelocationForSection (const RelocationEntry &RE, unsigned SectionID)
void	addRelocationForSymbol (const RelocationEntry &RE, StringRef SymbolName)
uint8_t *	createStubFunction (uint8_t *Addr, unsigned AbiVariant=0)
	Emits long jump instruction to Addr.
void	resolveRelocationList (const RelocationList &Relocs, uint64_t Value)
	Resolves relocations from Relocs list with address from Value.
virtual void	resolveRelocation (const RelocationEntry &RE, uint64_t Value)=0
	A object file specific relocation resolver.
virtual relocation_iterator	processRelocationRef (unsigned SectionID, relocation_iterator RelI, ObjectImage &Obj, ObjSectionToIDMap &ObjSectionToID, const SymbolTableMap &Symbols, StubMap &Stubs)=0
	Parses one or more object file relocations (some object files use relocation pairs) and stores it to Relocations or SymbolRelocations (this depends on the object file type).
void	resolveExternalSymbols ()
	Resolve relocations to external symbols.
virtual void	updateGOTEntries (StringRef Name, uint64_t Addr)
	Update GOT entries for external symbols.
void	computeTotalAllocSize (ObjectImage &Obj, uint64_t &CodeSize, uint64_t &DataSizeRO, uint64_t &DataSizeRW)
unsigned	computeSectionStubBufSize (ObjectImage &Obj, const SectionRef &Section)
Protected Attributes
RTDyldMemoryManager *	MemMgr
RuntimeDyldCheckerImpl *	Checker
SectionList	Sections
SymbolTableMap	GlobalSymbolTable
DenseMap< unsigned, RelocationList >	Relocations
StringMap< RelocationList >	ExternalSymbolRelocations
Triple::ArchType	Arch
bool	IsTargetLittleEndian
bool	ProcessAllSections
sys::Mutex	lock
bool	HasError
std::string	ErrorStr
Friends
class	RuntimeDyldCheckerImpl

Detailed Description

Definition at line 161 of file RuntimeDyldImpl.h.

Member Typedef Documentation

typedef std::pair<unsigned, unsigned> llvm::RuntimeDyldImpl::CommonSymbolInfo [protected]

Definition at line 197 of file RuntimeDyldImpl.h.

typedef std::map<SymbolRef, CommonSymbolInfo> llvm::RuntimeDyldImpl::CommonSymbolMap [protected]

Definition at line 199 of file RuntimeDyldImpl.h.

typedef std::map<SectionRef, unsigned> llvm::RuntimeDyldImpl::ObjSectionToIDMap [protected]

Definition at line 188 of file RuntimeDyldImpl.h.

typedef SmallVector<RelocationEntry, 64> llvm::RuntimeDyldImpl::RelocationList [protected]

Definition at line 206 of file RuntimeDyldImpl.h.

typedef SmallVector<SectionEntry, 64> llvm::RuntimeDyldImpl::SectionList [protected]

Definition at line 180 of file RuntimeDyldImpl.h.

typedef unsigned llvm::RuntimeDyldImpl::SID [protected]

Definition at line 183 of file RuntimeDyldImpl.h.

typedef std::map<RelocationValueRef, uintptr_t> llvm::RuntimeDyldImpl::StubMap [protected]

Definition at line 218 of file RuntimeDyldImpl.h.

typedef std::pair<unsigned, uintptr_t> llvm::RuntimeDyldImpl::SymbolLoc [protected]

Definition at line 192 of file RuntimeDyldImpl.h.

typedef StringMap<SymbolLoc> llvm::RuntimeDyldImpl::SymbolTableMap [protected]

Definition at line 193 of file RuntimeDyldImpl.h.

Constructor & Destructor Documentation

llvm::RuntimeDyldImpl::RuntimeDyldImpl ( RTDyldMemoryManager * mm ) [inline]

Definition at line 362 of file RuntimeDyldImpl.h.

RuntimeDyldImpl::~RuntimeDyldImpl ( ) [virtual]

Definition at line 31 of file RuntimeDyld.cpp.

Member Function Documentation

void llvm::RuntimeDyldImpl::addRelocationForSection	(	const RelocationEntry &	RE,
		unsigned	SectionID
	)		`[protected]`

Definition at line 574 of file RuntimeDyld.cpp.

Referenced by llvm::RuntimeDyldMachOX86_64::processRelocationRef(), llvm::RuntimeDyldMachOI386::processRelocationRef(), llvm::RuntimeDyldMachOARM::processRelocationRef(), and llvm::RuntimeDyldMachOAArch64::processRelocationRef().

void llvm::RuntimeDyldImpl::addRelocationForSymbol	(	const RelocationEntry &	RE,
		StringRef	SymbolName
	)		`[protected]`

Definition at line 579 of file RuntimeDyld.cpp.

References llvm::RelocationEntry::Addend, and llvm::StringMapEntry< ValueTy >::second.

Referenced by llvm::RuntimeDyldMachOI386::processRelocationRef(), llvm::RuntimeDyldMachOX86_64::processRelocationRef(), llvm::RuntimeDyldMachOARM::processRelocationRef(), and llvm::RuntimeDyldMachOAArch64::processRelocationRef().

void llvm::RuntimeDyldImpl::clearError ( ) [inline]

Definition at line 409 of file RuntimeDyldImpl.h.

unsigned llvm::RuntimeDyldImpl::computeSectionStubBufSize	(	ObjectImage &	Obj,
		const SectionRef &	Section
	)		`[protected]`

Definition at line 361 of file RuntimeDyld.cpp.

References llvm::ObjectImage::begin_sections(), Check(), llvm::ObjectImage::end_sections(), llvm::object::SectionRef::getAlignment(), and llvm::object::SectionRef::getSize().

void llvm::RuntimeDyldImpl::computeTotalAllocSize	(	ObjectImage &	Obj,
		uint64_t &	CodeSize,
		uint64_t &	DataSizeRO,
		uint64_t &	DataSizeRW
	)		`[protected]`

Definition at line 273 of file RuntimeDyld.cpp.

References llvm::ObjectImage::begin_sections(), llvm::ObjectImage::begin_symbols(), Check(), llvm::computeAllocationSizeForSections(), llvm::ObjectImage::end_sections(), llvm::ObjectImage::end_symbols(), llvm::object::SectionRef::getAlignment(), llvm::object::SectionRef::getName(), llvm::object::SectionRef::getSize(), I, llvm::object::SectionRef::isReadOnlyData(), llvm::object::SectionRef::isRequiredForExecution(), llvm::object::SectionRef::isText(), Name, llvm::ARMBuildAttrs::Section, llvm::COFF::SectionSize, and llvm::object::BasicSymbolRef::SF_Common.

uint8_t * llvm::RuntimeDyldImpl::createStubFunction	(	uint8_t *	Addr,
		unsigned	AbiVariant = `0`
	)		`[protected]`

Emits long jump instruction to Addr.

Returns:: Pointer to the memory area for emitting target address.

Definition at line 595 of file RuntimeDyld.cpp.

References llvm::Triple::aarch64, llvm::Triple::aarch64_be, llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, llvm::Triple::mipsel, llvm::Triple::ppc64, llvm::Triple::ppc64le, llvm::Triple::systemz, llvm::Triple::x86, and llvm::Triple::x86_64.

void llvm::RuntimeDyldImpl::deregisterEHFrames ( ) [virtual]

Reimplemented in llvm::RuntimeDyldELF.

Definition at line 42 of file RuntimeDyld.cpp.

void llvm::RuntimeDyldImpl::emitCommonSymbols	(	ObjectImage &	Obj,
		const CommonSymbolMap &	CommonSymbols,
		uint64_t	TotalSize,
		SymbolTableMap &	SymbolTable
	)		`[protected]`

Given the common symbols discovered in the object file, emit a new section for them and update the symbol mappings in the object and symbol table.

Definition at line 428 of file RuntimeDyld.cpp.

References Align(), llvm::StringRef::data(), llvm::dbgs(), DEBUG, llvm::format(), llvm::LibFunc::memset, Name, llvm::OffsetToAlignment(), llvm::report_fatal_error(), and llvm::ObjectImage::updateSymbolAddress().

unsigned llvm::RuntimeDyldImpl::emitSection	(	ObjectImage &	Obj,
		const SectionRef &	Section,
		bool	IsCode
	)		`[protected]`

Emits section data from the object file to the MemoryManager.

Parameters:

IsCode if it's true then allocateCodeSection() will be used for emits, else allocateDataSection() will be used.

Returns:: SectionID.

Definition at line 467 of file RuntimeDyld.cpp.

bool llvm::RuntimeDyldImpl::Error ( const Twine & Msg ) [inline, protected]

Definition at line 246 of file RuntimeDyldImpl.h.

References llvm::Twine::str().

Referenced by llvm::RuntimeDyldMachOX86_64::resolveRelocation(), llvm::RuntimeDyldMachOI386::resolveRelocation(), and llvm::RuntimeDyldMachOARM::resolveRelocation().

virtual void llvm::RuntimeDyldImpl::finalizeLoad	(	ObjectImage &	ObjImg,
		ObjSectionToIDMap &	SectionMap
	)		`[inline, virtual]`

Reimplemented in llvm::RuntimeDyldMachOCRTPBase< Impl >, llvm::RuntimeDyldMachOCRTPBase< RuntimeDyldMachOI386 >, llvm::RuntimeDyldMachOCRTPBase< RuntimeDyldMachOAArch64 >, llvm::RuntimeDyldMachOCRTPBase< RuntimeDyldMachOARM >, llvm::RuntimeDyldMachOCRTPBase< RuntimeDyldMachOX86_64 >, and llvm::RuntimeDyldELF.

Definition at line 421 of file RuntimeDyldImpl.h.

unsigned llvm::RuntimeDyldImpl::findOrEmitSection	(	ObjectImage &	Obj,
		const SectionRef &	Section,
		bool	IsCode,
		ObjSectionToIDMap &	LocalSections
	)		`[protected]`

Find Section in LocalSections. If the secton is not found - emit it and store in LocalSections.

Parameters:

IsCode if it's true then allocateCodeSection() will be used for emmits, else allocateDataSection() will be used.

Returns:: SectionID.

Definition at line 558 of file RuntimeDyld.cpp.

References llvm::ARMBuildAttrs::Section.

StringRef llvm::RuntimeDyldImpl::getErrorString ( ) [inline]

Definition at line 412 of file RuntimeDyldImpl.h.

virtual unsigned llvm::RuntimeDyldImpl::getMaxStubSize ( ) [protected, pure virtual]

Implemented in llvm::RuntimeDyldMachOARM, llvm::RuntimeDyldMachOAArch64, llvm::RuntimeDyldMachOI386, and llvm::RuntimeDyldMachOX86_64.

uint8_t* llvm::RuntimeDyldImpl::getSectionAddress ( unsigned SectionID ) const [inline, protected]

Definition at line 256 of file RuntimeDyldImpl.h.

uint64_t llvm::RuntimeDyldImpl::getSectionLoadAddress ( unsigned SectionID ) const [inline, protected]

Definition at line 252 of file RuntimeDyldImpl.h.

virtual unsigned llvm::RuntimeDyldImpl::getStubAlignment ( ) [protected, pure virtual]

Implemented in llvm::RuntimeDyldMachOARM, llvm::RuntimeDyldMachOAArch64, llvm::RuntimeDyldMachOI386, and llvm::RuntimeDyldMachOX86_64.

uint8_t* llvm::RuntimeDyldImpl::getSymbolAddress ( StringRef Name ) const [inline]

Definition at line 379 of file RuntimeDyldImpl.h.

References llvm::StringMapEntry< ValueTy >::second.

uint64_t llvm::RuntimeDyldImpl::getSymbolLoadAddress ( StringRef Name ) const [inline]

Definition at line 389 of file RuntimeDyldImpl.h.

References llvm::StringMapEntry< ValueTy >::second.

bool llvm::RuntimeDyldImpl::hasError ( ) [inline]

Definition at line 406 of file RuntimeDyldImpl.h.

virtual bool llvm::RuntimeDyldImpl::isCompatibleFile ( const ObjectFile * Obj ) const [pure virtual]

Implemented in llvm::RuntimeDyldMachO, and llvm::RuntimeDyldELF.

virtual bool llvm::RuntimeDyldImpl::isCompatibleFormat ( const ObjectBuffer * Buffer ) const [pure virtual]

Implemented in llvm::RuntimeDyldMachO, and llvm::RuntimeDyldELF.

std::unique_ptr< ObjectImage > llvm::RuntimeDyldImpl::loadObject ( std::unique_ptr< ObjectImage > InputObject )

Definition at line 141 of file RuntimeDyld.cpp.

References Align(), Check(), llvm::StringRef::data(), llvm::dbgs(), DEBUG, llvm::format(), llvm::getOffset(), I, Name, llvm::object::BasicSymbolRef::SF_Common, llvm::object::SymbolRef::ST_Data, llvm::object::SymbolRef::ST_Function, and llvm::object::SymbolRef::ST_Unknown.

void llvm::RuntimeDyldImpl::mapSectionAddress	(	const void *	LocalAddress,
		uint64_t	TargetAddress
	)

Definition at line 100 of file RuntimeDyld.cpp.

References llvm_unreachable.

virtual relocation_iterator llvm::RuntimeDyldImpl::processRelocationRef	(	unsigned	SectionID,
		relocation_iterator	RelI,
		ObjectImage &	Obj,
		ObjSectionToIDMap &	ObjSectionToID,
		const SymbolTableMap &	Symbols,
		StubMap &	Stubs
	)		`[protected, pure virtual]`

Parses one or more object file relocations (some object files use relocation pairs) and stores it to Relocations or SymbolRelocations (this depends on the object file type).