#include "ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOARM.h"

Inheritance diagram for llvm::RuntimeDyldMachOARM:

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Collaboration diagram for llvm::RuntimeDyldMachOARM:

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Public Types
typedef uint32_t	TargetPtrT

Public Member Functions
	RuntimeDyldMachOARM (RuntimeDyld::MemoryManager &MM, JITSymbolResolver &Resolver)

unsigned	getMaxStubSize () override

unsigned	getStubAlignment () override

Expected< JITSymbolFlags >	getJITSymbolFlags (const SymbolRef &SR) override
	Generate JITSymbolFlags from a libObject symbol. More...

uint64_t	modifyAddressBasedOnFlags (uint64_t Addr, JITSymbolFlags Flags) const override
	Modify the given target address based on the given symbol flags. More...

bool	isAddrTargetThumb (unsigned SectionID, uint64_t Offset)

Expected< int64_t >	decodeAddend (const RelocationEntry &RE) const

Expected< relocation_iterator >	processRelocationRef (unsigned SectionID, relocation_iterator RelI, const ObjectFile &BaseObjT, ObjSectionToIDMap &ObjSectionToID, StubMap &Stubs) override
	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). More...

void	resolveRelocation (const RelocationEntry &RE, uint64_t Value) override
	A object file specific relocation resolver. More...

Error	finalizeSection (const ObjectFile &Obj, unsigned SectionID, const SectionRef &Section)

Public Member Functions inherited from llvm::RuntimeDyldMachOCRTPBase< RuntimeDyldMachOARM >
	RuntimeDyldMachOCRTPBase (RuntimeDyld::MemoryManager &MemMgr, JITSymbolResolver &Resolver)

Error	finalizeLoad (const ObjectFile &Obj, ObjSectionToIDMap &SectionMap) override

void	registerEHFrames () override

Public Member Functions inherited from llvm::RuntimeDyldMachO
std::unique_ptr< RuntimeDyld::LoadedObjectInfo >	loadObject (const object::ObjectFile &O) override

SectionEntry &	getSection (unsigned SectionID)

bool	isCompatibleFile (const object::ObjectFile &Obj) const override

Public Member Functions inherited from llvm::RuntimeDyldImpl
	RuntimeDyldImpl (RuntimeDyld::MemoryManager &MemMgr, JITSymbolResolver &Resolver)

virtual	~RuntimeDyldImpl ()

void	setProcessAllSections (bool ProcessAllSections)

void	setRuntimeDyldChecker (RuntimeDyldCheckerImpl *Checker)

uint8_t *	getSymbolLocalAddress (StringRef Name) const

JITEvaluatedSymbol	getSymbol (StringRef Name) const

std::map< StringRef, JITEvaluatedSymbol >	getSymbolTable () const

void	resolveRelocations ()

void	resolveLocalRelocations ()

void	reassignSectionAddress (unsigned SectionID, uint64_t Addr)

void	mapSectionAddress (const void *LocalAddress, uint64_t TargetAddress)

bool	hasError ()

void	clearError ()

StringRef	getErrorString ()

void	deregisterEHFrames ()

virtual Error	finalizeLoad (const ObjectFile &ObjImg, ObjSectionToIDMap &SectionMap)

Additional Inherited Members
Static Public Member Functions inherited from llvm::RuntimeDyldMachO
static std::unique_ptr< RuntimeDyldMachO >	create (Triple::ArchType Arch, RuntimeDyld::MemoryManager &MemMgr, JITSymbolResolver &Resolver)
	Create a RuntimeDyldMachO instance for the given target architecture. More...

Static Public Member Functions inherited from llvm::RuntimeDyldImpl
static void	finalizeAsync (std::unique_ptr< RuntimeDyldImpl > This, std::function< void(Error)> OnEmitted, std::unique_ptr< MemoryBuffer > UnderlyingBuffer)

Protected Types inherited from llvm::RuntimeDyldImpl
typedef SmallVector< SectionEntry, 64 >	SectionList

typedef unsigned	SID

typedef std::map< SectionRef, unsigned >	ObjSectionToIDMap

typedef std::vector< SymbolRef >	CommonSymbolList

typedef SmallVector< RelocationEntry, 64 >	RelocationList

typedef std::map< RelocationValueRef, uintptr_t >	StubMap

Protected Member Functions inherited from llvm::RuntimeDyldMachO
	RuntimeDyldMachO (RuntimeDyld::MemoryManager &MemMgr, JITSymbolResolver &Resolver)

int64_t	memcpyAddend (const RelocationEntry &RE) const
	This convenience method uses memcpy to extract a contiguous addend (the addend size and offset are taken from the corresponding fields of the RE). More...

RelocationEntry	getRelocationEntry (unsigned SectionID, const ObjectFile &BaseTObj, const relocation_iterator &RI) const
	Given a relocation_iterator for a non-scattered relocation, construct a RelocationEntry and fill in the common fields. More...

Expected< relocation_iterator >	processScatteredVANILLA (unsigned SectionID, relocation_iterator RelI, const ObjectFile &BaseObjT, RuntimeDyldMachO::ObjSectionToIDMap &ObjSectionToID, bool TargetIsLocalThumbFunc=false)
	Process a scattered vanilla relocation. More...

Expected< RelocationValueRef >	getRelocationValueRef (const ObjectFile &BaseTObj, const relocation_iterator &RI, const RelocationEntry &RE, ObjSectionToIDMap &ObjSectionToID)
	Construct a RelocationValueRef representing the relocation target. More...

void	makeValueAddendPCRel (RelocationValueRef &Value, const relocation_iterator &RI, unsigned OffsetToNextPC)
	Make the RelocationValueRef addend PC-relative. More...

void	dumpRelocationToResolve (const RelocationEntry &RE, uint64_t Value) const
	Dump information about the relocation entry (RE) and resolved value. More...

Error	populateIndirectSymbolPointersSection (const MachOObjectFile &Obj, const SectionRef &PTSection, unsigned PTSectionID)

Protected Member Functions inherited from llvm::RuntimeDyldImpl
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)

virtual void	setMipsABI (const ObjectFile &Obj)

uint64_t	readBytesUnaligned (uint8_t *Src, unsigned Size) const
	Endian-aware read Read the least significant Size bytes from Src. More...

void	writeBytesUnaligned (uint64_t Value, uint8_t *Dst, unsigned Size) const
	Endian-aware write. More...

Error	emitCommonSymbols (const ObjectFile &Obj, CommonSymbolList &CommonSymbols, uint64_t CommonSize, uint32_t CommonAlign)
	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. More...

Expected< unsigned >	emitSection (const ObjectFile &Obj, const SectionRef &Section, bool IsCode)
	Emits section data from the object file to the MemoryManager. More...

Expected< unsigned >	findOrEmitSection (const ObjectFile &Obj, const SectionRef &Section, bool IsCode, ObjSectionToIDMap &LocalSections)
	Find Section in LocalSections. More...

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. More...

void	resolveRelocationList (const RelocationList &Relocs, uint64_t Value)
	Resolves relocations from Relocs list with address from Value. More...

void	applyExternalSymbolRelocations (const StringMap< JITEvaluatedSymbol > ExternalSymbolMap)

Error	resolveExternalSymbols ()
	Resolve relocations to external symbols. More...

Error	computeTotalAllocSize (const ObjectFile &Obj, uint64_t &CodeSize, uint32_t &CodeAlign, uint64_t &RODataSize, uint32_t &RODataAlign, uint64_t &RWDataSize, uint32_t &RWDataAlign)

unsigned	computeGOTSize (const ObjectFile &Obj)

unsigned	computeSectionStubBufSize (const ObjectFile &Obj, const SectionRef &Section)

Expected< ObjSectionToIDMap >	loadObjectImpl (const object::ObjectFile &Obj)

virtual size_t	getGOTEntrySize ()

virtual bool	relocationNeedsGot (const RelocationRef &R) const

virtual bool	relocationNeedsStub (const RelocationRef &R) const

Static Protected Member Functions inherited from llvm::RuntimeDyldMachO
static section_iterator	getSectionByAddress (const MachOObjectFile &Obj, uint64_t Addr)

Protected Attributes inherited from llvm::RuntimeDyldMachO
SmallVector< EHFrameRelatedSections, 2 >	UnregisteredEHFrameSections

Protected Attributes inherited from llvm::RuntimeDyldImpl
RuntimeDyld::MemoryManager &	MemMgr

JITSymbolResolver &	Resolver

RuntimeDyldCheckerImpl *	Checker

SectionList	Sections

RTDyldSymbolTable	GlobalSymbolTable

std::unordered_map< unsigned, RelocationList >	Relocations

StringMap< RelocationList >	ExternalSymbolRelocations

Triple::ArchType	Arch

bool	IsTargetLittleEndian

bool	IsMipsO32ABI

bool	IsMipsN32ABI

bool	IsMipsN64ABI

bool	ProcessAllSections

sys::Mutex	lock

bool	HasError

std::string	ErrorStr

Static Protected Attributes inherited from llvm::RuntimeDyldImpl
static const unsigned	AbsoluteSymbolSection = ~0U

Detailed Description

Definition at line 20 of file RuntimeDyldMachOARM.h.

Member Typedef Documentation

◆ TargetPtrT

typedef uint32_t llvm::RuntimeDyldMachOARM::TargetPtrT

Definition at line 27 of file RuntimeDyldMachOARM.h.

Constructor & Destructor Documentation

◆ RuntimeDyldMachOARM()

llvm::RuntimeDyldMachOARM::RuntimeDyldMachOARM	(	RuntimeDyld::MemoryManager &	MM,
		JITSymbolResolver &	Resolver
	)

inline

Definition at line 29 of file RuntimeDyldMachOARM.h.

Member Function Documentation

◆ decodeAddend()

Expected<int64_t> llvm::RuntimeDyldMachOARM::decodeAddend ( const RelocationEntry & RE ) const

inline

Definition at line 64 of file RuntimeDyldMachOARM.h.

References llvm::MachO::ARM_RELOC_BR24, llvm::MachO::ARM_THUMB_RELOC_BR22, llvm::SectionEntry::getAddressWithOffset(), llvm::inconvertibleErrorCode(), llvm::RuntimeDyldMachO::memcpyAddend(), llvm::RelocationEntry::Offset, llvm::RuntimeDyldImpl::readBytesUnaligned(), llvm::RelocationEntry::RelType, llvm::ARMBuildAttrs::Section, llvm::RelocationEntry::SectionID, and llvm::RuntimeDyldImpl::Sections.

Referenced by processRelocationRef().

◆ finalizeSection()

Error llvm::RuntimeDyldMachOARM::finalizeSection	(	const ObjectFile &	Obj,
		unsigned	SectionID,
		const SectionRef &	Section
	)

inline

Definition at line 290 of file RuntimeDyldMachOARM.h.

References llvm::RuntimeDyldImpl::addRelocationForSection(), llvm::RuntimeDyldImpl::addRelocationForSymbol(), llvm::SectionEntry::advanceStubOffset(), llvm::MachO::ARM_RELOC_BR24, llvm::MachO::ARM_THUMB_RELOC_BR22, assert(), llvm::dbgs(), llvm::RuntimeDyldImpl::findOrEmitSection(), llvm::MachO::GENERIC_RELOC_VANILLA, llvm::SectionEntry::getAddress(), llvm::SectionEntry::getAddressWithOffset(), llvm::object::MachOObjectFile::getAnyRelocationAddress(), llvm::object::MachOObjectFile::getAnyRelocationLength(), llvm::object::MachOObjectFile::getAnyRelocationPCRel(), llvm::object::MachOObjectFile::getAnyRelocationType(), getMaxStubSize(), llvm::object::SectionRef::getName(), llvm::object::MachOObjectFile::getRelocation(), llvm::object::MachOObjectFile::getScatteredRelocationValue(), llvm::RuntimeDyldMachO::getSectionByAddress(), llvm::SectionEntry::getStubOffset(), llvm::RelocationEntry::IsPCRel, llvm::RelocationEntry::IsTargetThumbFunc, llvm::object::SectionRef::isText(), LLVM_DEBUG, llvm_unreachable, Name, llvm::RelocationEntry::Offset, llvm::RelocationValueRef::Offset, llvm::RuntimeDyldMachO::populateIndirectSymbolPointersSection(), llvm::RuntimeDyldImpl::readBytesUnaligned(), llvm::RelocationEntry::RelType, resolveRelocation(), llvm::ARMBuildAttrs::Section, llvm::object::MachOObjectFile::section_end(), llvm::RelocationEntry::SectionID, llvm::RelocationValueRef::SectionID, llvm::RuntimeDyldImpl::Sections, llvm::RelocationEntry::Size, llvm::Error::success(), llvm::RelocationValueRef::SymbolName, and llvm::RuntimeDyldImpl::writeBytesUnaligned().

◆ getJITSymbolFlags()

Expected<JITSymbolFlags> llvm::RuntimeDyldMachOARM::getJITSymbolFlags ( const SymbolRef & Sym )

inlineoverridevirtual

Generate JITSymbolFlags from a libObject symbol.

Reimplemented from llvm::RuntimeDyldImpl.

Definition at line 37 of file RuntimeDyldMachOARM.h.

References llvm::ARMJITSymbolFlags::fromObjectSymbol(), and llvm::RuntimeDyldImpl::getJITSymbolFlags().

◆ getMaxStubSize()

unsigned llvm::RuntimeDyldMachOARM::getMaxStubSize ( )

inlineoverridevirtual

Implements llvm::RuntimeDyldImpl.

Definition at line 33 of file RuntimeDyldMachOARM.h.

Referenced by finalizeSection().

◆ getStubAlignment()

unsigned llvm::RuntimeDyldMachOARM::getStubAlignment ( )

inlineoverridevirtual

Implements llvm::RuntimeDyldImpl.

Definition at line 35 of file RuntimeDyldMachOARM.h.

◆ isAddrTargetThumb()

bool llvm::RuntimeDyldMachOARM::isAddrTargetThumb	(	unsigned	SectionID,
		uint64_t	Offset
	)

inline

Definition at line 52 of file RuntimeDyldMachOARM.h.

References llvm::RuntimeDyldImpl::GlobalSymbolTable, llvm::RuntimeDyldImpl::Sections, and llvm::ARMJITSymbolFlags::Thumb.

Referenced by processRelocationRef().

◆ modifyAddressBasedOnFlags()

uint64_t llvm::RuntimeDyldMachOARM::modifyAddressBasedOnFlags	(	uint64_t	Addr,
		JITSymbolFlags	Flags
	)		const

inlineoverridevirtual

Modify the given target address based on the given symbol flags.

This can be used by subclasses to tweak addresses based on symbol flags, For example: the MachO/ARM target uses it to set the low bit if the target is a thumb symbol.

Reimplemented from llvm::RuntimeDyldImpl.

Definition at line 45 of file RuntimeDyldMachOARM.h.

References llvm::JITSymbolFlags::getTargetFlags(), and llvm::ARMJITSymbolFlags::Thumb.

◆ processRelocationRef()

Expected<relocation_iterator> llvm::RuntimeDyldMachOARM::processRelocationRef	(	unsigned	SectionID,
		relocation_iterator	RelI,
		const ObjectFile &	Obj,
		ObjSectionToIDMap &	ObjSectionToID,
		StubMap &	Stubs
	)

inlineoverridevirtual

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).

Returns: Iterator to the next relocation that needs to be parsed.

Implements llvm::RuntimeDyldImpl.

Definition at line 102 of file RuntimeDyldMachOARM.h.

References llvm::RelocationEntry::Addend, llvm::RuntimeDyldImpl::addRelocationForSection(), llvm::RuntimeDyldImpl::addRelocationForSymbol(), llvm::MachO::ARM_RELOC_BR24, llvm::MachO::ARM_RELOC_HALF, llvm::MachO::ARM_RELOC_HALF_SECTDIFF, llvm::MachO::ARM_RELOC_LOCAL_SECTDIFF, llvm::MachO::ARM_RELOC_PAIR, llvm::MachO::ARM_RELOC_PB_LA_PTR, llvm::MachO::ARM_RELOC_SECTDIFF, llvm::MachO::ARM_THUMB_32BIT_BRANCH, llvm::MachO::ARM_THUMB_RELOC_BR22, decodeAddend(), llvm::StringMap< ValueTy, AllocatorTy >::end(), llvm::StringMap< ValueTy, AllocatorTy >::find(), llvm::MachO::GENERIC_RELOC_VANILLA, llvm::object::MachOObjectFile::getAnyRelocationType(), llvm::object::MachOObjectFile::getPlainRelocationExternal(), llvm::object::MachOObjectFile::getRelocation(), llvm::RuntimeDyldMachO::getRelocationEntry(), llvm::RuntimeDyldMachO::getRelocationValueRef(), llvm::RuntimeDyldImpl::GlobalSymbolTable, isAddrTargetThumb(), llvm::RelocationEntry::IsPCRel, llvm::object::MachOObjectFile::isRelocationScattered(), llvm::RelocationValueRef::IsStubThumb, llvm::RelocationEntry::IsTargetThumbFunc, llvm::RuntimeDyldMachO::makeValueAddendPCRel(), llvm::RelocationValueRef::Offset, llvm::RuntimeDyldMachO::processScatteredVANILLA(), llvm::RelocationEntry::RelType, llvm::RelocationValueRef::SectionID, llvm::ARMBuildAttrs::Symbol, llvm::RelocationValueRef::SymbolName, llvm::ARMJITSymbolFlags::Thumb, and UNIMPLEMENTED_RELOC.

◆ resolveRelocation()

void llvm::RuntimeDyldMachOARM::resolveRelocation	(	const RelocationEntry &	RE,
		uint64_t	Value
	)

inlineoverridevirtual

A object file specific relocation resolver.

Parameters

RE	The relocation to be resolved
Value	Target symbol address to apply the relocation action

Implements llvm::RuntimeDyldImpl.

Definition at line 204 of file RuntimeDyldMachOARM.h.

Referenced by finalizeSection().

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

lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOARM.h

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ TargetPtrT

Constructor & Destructor Documentation

◆ RuntimeDyldMachOARM()

Member Function Documentation

◆ decodeAddend()

◆ finalizeSection()

◆ getJITSymbolFlags()

◆ getMaxStubSize()

◆ getStubAlignment()

◆ isAddrTargetThumb()

◆ modifyAddressBasedOnFlags()

◆ processRelocationRef()

◆ resolveRelocation()