llvm::RuntimeDyldCOFFAArch64 Class Reference

#include "ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldCOFFAArch64.h"

Inheritance diagram for llvm::RuntimeDyldCOFFAArch64:

Public Member Functions
	RuntimeDyldCOFFAArch64 (RuntimeDyld::MemoryManager &MM, JITSymbolResolver &Resolver)
Align	getStubAlignment () override
unsigned	getMaxStubSize () const override
uint64_t	getGOTEntryOffset (unsigned SectionID, StubMap &Stubs, StringRef Name, bool CreateIfMissing)
	GOT slot in this section's stub area holding the address of Name, so an ADRP can reach external symbols (e.g.
std::tuple< uint64_t, uint64_t, uint64_t >	generateRelocationStub (unsigned SectionID, StringRef TargetName, uint64_t Offset, uint64_t RelType, uint64_t Addend, StubMap &Stubs)
Expected< object::relocation_iterator >	processRelocationRef (unsigned SectionID, object::relocation_iterator RelI, const object::ObjectFile &Obj, 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).
void	resolveRelocation (const RelocationEntry &RE, uint64_t Value) override
	A object file specific relocation resolver.
void	registerEHFrames () override
Public Member Functions inherited from llvm::RuntimeDyldCOFF
std::unique_ptr< RuntimeDyld::LoadedObjectInfo >	loadObject (const object::ObjectFile &Obj) override
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)
uint64_t	getSectionLoadAddress (unsigned SectionID) const
uint8_t *	getSectionAddress (unsigned SectionID) const
StringRef	getSectionContent (unsigned SectionID) const
uint8_t *	getSymbolLocalAddress (StringRef Name) const
unsigned	getSymbolSectionID (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	setNotifyStubEmitted (NotifyStubEmittedFunction NotifyStubEmitted)
void	deregisterEHFrames ()
virtual Error	finalizeLoad (const ObjectFile &ObjImg, ObjSectionToIDMap &SectionMap)

Static Public Member Functions
static bool	isAddImmediate (uint32_t Inst)
	ADD (immediate, no shift): the second half of the ADRP+ADD idiom.
Static Public Member Functions inherited from llvm::RuntimeDyldCOFF
static std::unique_ptr< RuntimeDyldCOFF >	create (Triple::ArchType Arch, RuntimeDyld::MemoryManager &MemMgr, JITSymbolResolver &Resolver)
Static Public Member Functions inherited from llvm::RuntimeDyldImpl
static void	finalizeAsync (std::unique_ptr< RuntimeDyldImpl > This, unique_function< void(object::OwningBinary< object::ObjectFile >, std::unique_ptr< RuntimeDyld::LoadedObjectInfo >, Error)> OnEmitted, object::OwningBinary< object::ObjectFile > O, std::unique_ptr< RuntimeDyld::LoadedObjectInfo > Info)

Additional Inherited Members
Protected Types inherited from llvm::RuntimeDyldImpl
typedef std::deque< SectionEntry >	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
using	NotifyStubEmittedFunction
Protected Member Functions inherited from llvm::RuntimeDyldCOFF
	RuntimeDyldCOFF (RuntimeDyld::MemoryManager &MemMgr, JITSymbolResolver &Resolver, unsigned PointerSize, uint32_t PointerReloc)
uint64_t	getSymbolOffset (const SymbolRef &Sym)
uint64_t	getDLLImportOffset (unsigned SectionID, StubMap &Stubs, StringRef Name, bool SetSectionIDMinus1=false)
bool	relocationNeedsDLLImportStub (const RelocationRef &R) const override
unsigned	sizeAfterAddingDLLImportStub (unsigned Size) const override
Protected Member Functions inherited from llvm::RuntimeDyldImpl
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.
void	writeBytesUnaligned (uint64_t Value, uint8_t *Dst, unsigned Size) const
	Endian-aware write.
virtual Expected< JITSymbolFlags >	getJITSymbolFlags (const SymbolRef &Sym)
	Generate JITSymbolFlags from a libObject symbol.
virtual uint64_t	modifyAddressBasedOnFlags (uint64_t Addr, JITSymbolFlags Flags) const
	Modify the given target address based on the given symbol flags.
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.
Expected< unsigned >	emitSection (const ObjectFile &Obj, const SectionRef &Section, bool IsCode)
	Emits section data from the object file to the MemoryManager.
Expected< unsigned >	findOrEmitSection (const ObjectFile &Obj, const SectionRef &Section, bool IsCode, ObjSectionToIDMap &LocalSections)
	Find Section 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.
void	applyExternalSymbolRelocations (const StringMap< JITEvaluatedSymbol > ExternalSymbolMap)
Error	resolveExternalSymbols ()
	Resolve relocations to external symbols.
Error	computeTotalAllocSize (const ObjectFile &Obj, uint64_t &CodeSize, Align &CodeAlign, uint64_t &RODataSize, Align &RODataAlign, uint64_t &RWDataSize, Align &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 void	processNewSymbol (const SymbolRef &ObjSymbol, SymbolTableEntry &Entry)
virtual bool	relocationNeedsGot (const RelocationRef &R) const
virtual bool	relocationNeedsStub (const RelocationRef &R) const
Static Protected Member Functions inherited from llvm::RuntimeDyldCOFF
static constexpr StringRef	getImportSymbolPrefix ()
Protected Attributes inherited from llvm::RuntimeDyldImpl
RuntimeDyld::MemoryManager &	MemMgr
JITSymbolResolver &	Resolver
SectionList	Sections
RTDyldSymbolTable	GlobalSymbolTable
DenseMap< unsigned, RelocationList >	Relocations
StringMap< RelocationList >	ExternalSymbolRelocations
Triple::ArchType	Arch
bool	IsTargetLittleEndian
bool	IsMipsO32ABI
bool	IsMipsN32ABI
bool	IsMipsN64ABI
bool	ProcessAllSections
sys::Mutex	lock
NotifyStubEmittedFunction	NotifyStubEmitted
bool	HasError
std::string	ErrorStr
Static Protected Attributes inherited from llvm::RuntimeDyldImpl
static const unsigned	AbsoluteSymbolSection = ~0U

Detailed Description

Definition at line 95 of file RuntimeDyldCOFFAArch64.h.

Constructor & Destructor Documentation

RuntimeDyldCOFFAArch64()

llvm::RuntimeDyldCOFFAArch64::RuntimeDyldCOFFAArch64 ( RuntimeDyld::MemoryManager & MM, JITSymbolResolver & Resolver )

inline

Definition at line 122 of file RuntimeDyldCOFFAArch64.h.

References llvm::RuntimeDyldCOFF::RuntimeDyldCOFF().

Member Function Documentation

generateRelocationStub()

std::tuple< uint64_t, uint64_t, uint64_t > llvm::RuntimeDyldCOFFAArch64::generateRelocationStub ( unsigned SectionID, StringRef TargetName, uint64_t Offset, uint64_t RelType, uint64_t Addend, StubMap & Stubs )

inline

Definition at line 174 of file RuntimeDyldCOFFAArch64.h.

References llvm::RelocationValueRef::Addend, llvm::RuntimeDyldImpl::createStubFunction(), llvm::StringRef::data(), llvm::dbgs(), getMaxStubSize(), llvm::INTERNAL_REL_ARM64_LONG_BRANCH26, LLVM_DEBUG, llvm::Offset, llvm::RelocationValueRef::Offset, resolveRelocation(), llvm::RelocationValueRef::SectionID, llvm::RuntimeDyldImpl::Sections, and llvm::RelocationValueRef::SymbolName.

Referenced by processRelocationRef().

getGOTEntryOffset()

uint64_t llvm::RuntimeDyldCOFFAArch64::getGOTEntryOffset ( unsigned SectionID, StubMap & Stubs, StringRef Name, bool CreateIfMissing )

inline

GOT slot in this section's stub area holding the address of Name, so an ADRP can reach external symbols (e.g.

DLL exports) beyond +/-4 GiB. computeSectionStubBufSize reserves getMaxStubSize() per relocation, which covers the 8 bytes.

Definition at line 135 of file RuntimeDyldCOFFAArch64.h.

References llvm::RuntimeDyldImpl::addRelocationForSymbol(), llvm::SectionEntry::advanceStubOffset(), llvm::alignTo(), llvm::dbgs(), llvm::SectionEntry::getStubOffset(), llvm::COFF::IMAGE_REL_ARM64_ADDR64, llvm::InnerAnalysisManagerProxy< AnalysisManagerT, IRUnitT, ExtraArgTs... >::Key, LLVM_DEBUG, llvm::Log2_64(), and llvm::RuntimeDyldImpl::Sections.

Referenced by processRelocationRef().

getMaxStubSize()

unsigned llvm::RuntimeDyldCOFFAArch64::getMaxStubSize ( ) const

inlineoverridevirtual

Implements llvm::RuntimeDyldImpl.

Definition at line 129 of file RuntimeDyldCOFFAArch64.h.

Referenced by generateRelocationStub().

getStubAlignment()

Align llvm::RuntimeDyldCOFFAArch64::getStubAlignment ( )

inlineoverridevirtual

Implements llvm::RuntimeDyldImpl.

Definition at line 127 of file RuntimeDyldCOFFAArch64.h.

isAddImmediate()

bool llvm::RuntimeDyldCOFFAArch64::isAddImmediate ( uint32_t Inst )

inlinestatic

ADD (immediate, no shift): the second half of the ADRP+ADD idiom.

Definition at line 168 of file RuntimeDyldCOFFAArch64.h.

Referenced by processRelocationRef().

processRelocationRef()

Expected< object::relocation_iterator > llvm::RuntimeDyldCOFFAArch64::processRelocationRef ( unsigned SectionID, object::relocation_iterator RelI, const object::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 216 of file RuntimeDyldCOFFAArch64.h.

References llvm::RuntimeDyldImpl::addRelocationForSection(), llvm::RuntimeDyldImpl::addRelocationForSymbol(), llvm::dbgs(), llvm::RuntimeDyldImpl::findOrEmitSection(), generateRelocationStub(), llvm::SectionEntry::getAddressWithOffset(), llvm::RuntimeDyldCOFF::getDLLImportOffset(), getGOTEntryOffset(), llvm::RuntimeDyldCOFF::getImportSymbolPrefix(), llvm::SectionEntry::getObjAddress(), llvm::object::RelocationRef::getOffset(), llvm::object::RelocationRef::getSymbol(), llvm::RuntimeDyldCOFF::getSymbolOffset(), llvm::object::RelocationRef::getType(), llvm::object::RelocationRef::getTypeName(), llvm::COFF::IMAGE_REL_ARM64_ADDR32, llvm::COFF::IMAGE_REL_ARM64_ADDR32NB, llvm::COFF::IMAGE_REL_ARM64_ADDR64, llvm::COFF::IMAGE_REL_ARM64_BRANCH14, llvm::COFF::IMAGE_REL_ARM64_BRANCH19, llvm::COFF::IMAGE_REL_ARM64_BRANCH26, llvm::COFF::IMAGE_REL_ARM64_PAGEBASE_REL21, llvm::COFF::IMAGE_REL_ARM64_PAGEOFFSET_12A, llvm::COFF::IMAGE_REL_ARM64_PAGEOFFSET_12L, llvm::COFF::IMAGE_REL_ARM64_REL21, llvm::COFF::IMAGE_REL_ARM64_REL32, llvm::COFF::IMAGE_REL_ARM64_SECREL, isAddImmediate(), LLVM_DEBUG, llvm::Offset, llvm::read32AArch64LdrAddend(), llvm::support::endian::read32le(), llvm::support::endian::read64le(), llvm::report_fatal_error(), llvm::RuntimeDyldImpl::Sections, llvm::StringRef::starts_with(), llvm::Expected< T >::takeError(), uint64_t, and write32le().

registerEHFrames()

void llvm::RuntimeDyldCOFFAArch64::registerEHFrames ( )

inlineoverridevirtual

Reimplemented from llvm::RuntimeDyldImpl.

Definition at line 493 of file RuntimeDyldCOFFAArch64.h.

resolveRelocation()

void llvm::RuntimeDyldCOFFAArch64::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 376 of file RuntimeDyldCOFFAArch64.h.

References llvm::add16(), llvm::RelocationEntry::Addend, assert(), llvm::COFF::IMAGE_REL_ARM64_ABSOLUTE, llvm::COFF::IMAGE_REL_ARM64_ADDR32, llvm::COFF::IMAGE_REL_ARM64_ADDR32NB, llvm::COFF::IMAGE_REL_ARM64_ADDR64, llvm::COFF::IMAGE_REL_ARM64_BRANCH14, llvm::COFF::IMAGE_REL_ARM64_BRANCH19, llvm::COFF::IMAGE_REL_ARM64_BRANCH26, llvm::COFF::IMAGE_REL_ARM64_PAGEBASE_REL21, llvm::COFF::IMAGE_REL_ARM64_PAGEOFFSET_12A, llvm::COFF::IMAGE_REL_ARM64_PAGEOFFSET_12L, llvm::COFF::IMAGE_REL_ARM64_REL21, llvm::COFF::IMAGE_REL_ARM64_REL32, llvm::COFF::IMAGE_REL_ARM64_SECREL, llvm::COFF::IMAGE_REL_ARM64_SECTION, llvm::INTERNAL_REL_ARM64_LONG_BRANCH26, llvm::isInt(), llvm_unreachable, llvm::RelocationEntry::Offset, llvm::or32le(), llvm::support::endian::read32le(), llvm::RelocationEntry::RelType, llvm::RelocationEntry::SectionID, llvm::RuntimeDyldImpl::Sections, llvm::write32AArch64Addr(), llvm::write32AArch64Imm(), llvm::write32AArch64Ldr(), write32le(), and llvm::support::endian::write64le().

Referenced by generateRelocationStub().

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

• lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldCOFFAArch64.h