class RuntimeDyldELF

Declaration

class RuntimeDyldELF : public RuntimeDyldImpl { /* full declaration omitted */ };

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:26

Inherits from: RuntimeDyldImpl

Member Variables

private unsigned int GOTSectionID

private unsigned int CurrentGOTIndex

protected DenseMap<llvm::RuntimeDyldImpl::SID, llvm::RuntimeDyldImpl::SID> SectionToGOTMap

private StringMap<uint64_t> GOTSymbolOffsets

private SmallVector<std::pair<RelocationValueRef, RelocationEntry>, 8> PendingRelocs

private SmallVector<llvm::RuntimeDyldImpl::SID, 2> UnregisteredEHFrameSections

private std::map<RelocationValueRef, uint64_t> GOTOffsetMap

Inherited from RuntimeDyldImpl:

protected MemMgr

protected Resolver

protected Sections

protected GlobalSymbolTable

protected Relocations

protected ExternalSymbolRelocations

protected Arch

protected IsTargetLittleEndian

protected IsMipsO32ABI

protected IsMipsN32ABI

protected IsMipsN64ABI

protected ProcessAllSections

protected lock

protected NotifyStubEmitted

protected HasError

protected ErrorStr

protected static AbsoluteSymbolSection = ~0U

Method Overview

• public RuntimeDyldELF(RuntimeDyld::MemoryManager & MemMgr, llvm::JITSymbolResolver & Resolver)
• private uint64_t allocateGOTEntries(unsigned int no)
• private llvm::RelocationEntry computeGOTOffsetRE(uint64_t GOTOffset, uint64_t SymbolOffset, unsigned int Type)
• private void * computePlaceholderAddress(unsigned int SectionID, uint64_t Offset) const
• public static std::unique_ptr<RuntimeDyldELF> create(Triple::ArchType Arch, RuntimeDyld::MemoryManager & MemMgr, llvm::JITSymbolResolver & Resolver)
• public llvm::Error finalizeLoad(const llvm::object::ObjectFile & Obj, llvm::RuntimeDyldImpl::ObjSectionToIDMap & SectionMap)
• private llvm::Error findOPDEntrySection(const object::ELFObjectFileBase & Obj, llvm::RuntimeDyldImpl::ObjSectionToIDMap & LocalSections, llvm::RelocationValueRef & Rel)
• private uint64_t findOrAllocGOTEntry(const llvm::RelocationValueRef & Value, unsigned int GOTRelType)
• private llvm::Error findPPC64TOCSection(const object::ELFObjectFileBase & Obj, llvm::RuntimeDyldImpl::ObjSectionToIDMap & LocalSections, llvm::RelocationValueRef & Rel)
• protected size_t getGOTEntrySize()
• private uint32_t getMatchingLoRelocation(uint32_t RelType, bool IsLocal = false) const
• private unsigned int getMaxStubSize() const
• private llvm::SectionEntry & getSection(unsigned int SectionID)
• private unsigned int getStubAlignment()
• public bool isCompatibleFile(const object::ObjectFile & Obj) const
• public std::unique_ptr<RuntimeDyld::LoadedObjectInfo> loadObject(const object::ObjectFile & O)
• public Expected<llvm::object::relocation_iterator> processRelocationRef(unsigned int SectionID, llvm::object::relocation_iterator RelI, const llvm::object::ObjectFile & Obj, llvm::RuntimeDyldImpl::ObjSectionToIDMap & ObjSectionToID, llvm::RuntimeDyldImpl::StubMap & Stubs)
• private void processSimpleRelocation(unsigned int SectionID, uint64_t Offset, unsigned int RelType, llvm::RelocationValueRef Value)
• private void processX86_64GOTTPOFFRelocation(unsigned int SectionID, uint64_t Offset, llvm::RelocationValueRef Value, int64_t Addend)
• private void processX86_64TLSRelocation(unsigned int SectionID, uint64_t Offset, uint64_t RelType, llvm::RelocationValueRef Value, int64_t Addend, const llvm::object::RelocationRef & GetAddrRelocation)
• public void registerEHFrames()
• private bool relocationNeedsGot(const llvm::object::RelocationRef & R) const
• private bool relocationNeedsStub(const llvm::object::RelocationRef & R) const
• private void resolveAArch64Branch(unsigned int SectionID, const llvm::RelocationValueRef & Value, llvm::object::relocation_iterator RelI, llvm::RuntimeDyldImpl::StubMap & Stubs)
• private void resolveAArch64Relocation(const llvm::SectionEntry & Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend)
• private bool resolveAArch64ShortBranch(unsigned int SectionID, llvm::object::relocation_iterator RelI, const llvm::RelocationValueRef & Value)
• private void resolveARMRelocation(const llvm::SectionEntry & Section, uint64_t Offset, uint32_t Value, uint32_t Type, int32_t Addend)
• private void resolveBPFRelocation(const llvm::SectionEntry & Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend)
• private void resolveGOTOffsetRelocation(unsigned int SectionID, uint64_t Offset, uint64_t GOTOffset, uint32_t Type)
• private void resolvePPC32Relocation(const llvm::SectionEntry & Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend)
• private void resolvePPC64Relocation(const llvm::SectionEntry & Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend)
• private void resolveRelocation(const llvm::SectionEntry & Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend, uint64_t SymOffset = 0, llvm::RuntimeDyldImpl::SID SectionID = 0)
• public void resolveRelocation(const llvm::RelocationEntry & RE, uint64_t Value)
• private void resolveSystemZRelocation(const llvm::SectionEntry & Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend)
• private void resolveX86Relocation(const llvm::SectionEntry & Section, uint64_t Offset, uint32_t Value, uint32_t Type, int32_t Addend)
• private void resolveX86_64Relocation(const llvm::SectionEntry & Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend, uint64_t SymOffset)
• private void setMipsABI(const llvm::object::ObjectFile & Obj)
• public ~RuntimeDyldELF()

Inherited from RuntimeDyldImpl:

• protected addRelocationForSection
• protected addRelocationForSymbol
• protected applyExternalSymbolRelocations
• public clearError
• protected computeGOTSize
• protected computeSectionStubBufSize
• protected computeTotalAllocSize
• protected createStubFunction
• public deregisterEHFrames
• protected emitCommonSymbols
• protected emitSection
• public finalizeAsync
• public finalizeLoad
• protected findOrEmitSection
• public getErrorString
• protected getGOTEntrySize
• protected getJITSymbolFlags
• protected getMaxStubSize
• public getSectionAddress
• public getSectionContent
• public getSectionLoadAddress
• protected getStubAlignment
• public getSymbol
• public getSymbolLocalAddress
• public getSymbolSectionID
• public getSymbolTable
• public hasError
• public isCompatibleFile
• public loadObject
• protected loadObjectImpl
• public mapSectionAddress
• protected modifyAddressBasedOnFlags
• protected processRelocationRef
• protected readBytesUnaligned
• public reassignSectionAddress
• public registerEHFrames
• protected relocationNeedsGot
• protected relocationNeedsStub
• protected resolveExternalSymbols
• public resolveLocalRelocations
• protected resolveRelocation
• protected resolveRelocationList
• public resolveRelocations
• protected setMipsABI
• public setNotifyStubEmitted
• public setProcessAllSections
• protected writeBytesUnaligned
• protected writeInt16BE
• protected writeInt32BE
• protected writeInt64BE

Methods

¶RuntimeDyldELF(RuntimeDyld::MemoryManager& MemMgr,
               llvm::JITSymbolResolver& Resolver)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:177

Parameters

RuntimeDyld::MemoryManager& MemMgr

llvm::JITSymbolResolver& Resolver

¶uint64_t allocateGOTEntries(unsigned int no)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:105

Parameters

unsigned int no

¶llvm::RelocationEntry computeGOTOffsetRE(
    uint64_t GOTOffset,
    uint64_t SymbolOffset,
    unsigned int Type)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:118

Parameters

uint64_t GOTOffset

uint64_t SymbolOffset

unsigned int Type

¶void* computePlaceholderAddress(
    unsigned int SectionID,
    uint64_t Offset) const

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:122

Parameters

unsigned int SectionID

uint64_t Offset

¶static std::unique_ptr<RuntimeDyldELF> create(
    Triple::ArchType Arch,
    RuntimeDyld::MemoryManager& MemMgr,
    llvm::JITSymbolResolver& Resolver)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:182

Parameters

Triple::ArchType Arch

RuntimeDyld::MemoryManager& MemMgr

llvm::JITSymbolResolver& Resolver

¶llvm::Error finalizeLoad(
    const llvm::object::ObjectFile& Obj,
    llvm::RuntimeDyldImpl::ObjSectionToIDMap&
        SectionMap)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:196

Parameters

const llvm::object::ObjectFile& Obj

llvm::RuntimeDyldImpl::ObjSectionToIDMap& SectionMap

¶llvm::Error findOPDEntrySection(
    const object::ELFObjectFileBase& Obj,
    llvm::RuntimeDyldImpl::ObjSectionToIDMap&
        LocalSections,
    llvm::RelocationValueRef& Rel)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:94

Parameters

const object::ELFObjectFileBase& Obj

llvm::RuntimeDyldImpl::ObjSectionToIDMap& LocalSections

llvm::RelocationValueRef& Rel

¶uint64_t findOrAllocGOTEntry(
    const llvm::RelocationValueRef& Value,
    unsigned int GOTRelType)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:108

Parameters

const llvm::RelocationValueRef& Value

unsigned int GOTRelType

¶llvm::Error findPPC64TOCSection(
    const object::ELFObjectFileBase& Obj,
    llvm::RuntimeDyldImpl::ObjSectionToIDMap&
        LocalSections,
    llvm::RelocationValueRef& Rel)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:91

Parameters

const object::ELFObjectFileBase& Obj

llvm::RuntimeDyldImpl::ObjSectionToIDMap& LocalSections

llvm::RelocationValueRef& Rel

¶size_t getGOTEntrySize()

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:99

¶uint32_t getMatchingLoRelocation(
    uint32_t RelType,
    bool IsLocal = false) const

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:129

Parameters

uint32_t RelType

bool IsLocal = false

¶unsigned int getMaxStubSize() const

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:63

¶llvm::SectionEntry& getSection(
    unsigned int SectionID)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:102

Parameters

unsigned int SectionID

¶unsigned int getStubAlignment()

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:82

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

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:194

Parameters

const object::ObjectFile& Obj

¶std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
loadObject(const object::ObjectFile& O)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:186

Parameters

const object::ObjectFile& O

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

Description

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).

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:190

Parameters

unsigned int SectionID

llvm::object::relocation_iterator RelI

const llvm::object::ObjectFile& Obj

llvm::RuntimeDyldImpl::ObjSectionToIDMap& ObjSectionToID

llvm::RuntimeDyldImpl::StubMap& Stubs

Returns

Iterator to the next relocation that needs to be parsed.

¶void processSimpleRelocation(
    unsigned int SectionID,
    uint64_t Offset,
    unsigned int RelType,
    llvm::RelocationValueRef Value)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:126

Parameters

unsigned int SectionID

uint64_t Offset

unsigned int RelType

llvm::RelocationValueRef Value

¶void processX86_64GOTTPOFFRelocation(
    unsigned int SectionID,
    uint64_t Offset,
    llvm::RelocationValueRef Value,
    int64_t Addend)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:166

Parameters

unsigned int SectionID

uint64_t Offset

llvm::RelocationValueRef Value

int64_t Addend

¶void processX86_64TLSRelocation(
    unsigned int SectionID,
    uint64_t Offset,
    uint64_t RelType,
    llvm::RelocationValueRef Value,
    int64_t Addend,
    const llvm::object::RelocationRef&
        GetAddrRelocation)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:171

Parameters

unsigned int SectionID

uint64_t Offset

uint64_t RelType

llvm::RelocationValueRef Value

int64_t Addend

const llvm::object::RelocationRef& GetAddrRelocation

¶void registerEHFrames()

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:195

¶bool relocationNeedsGot(
    const llvm::object::RelocationRef& R) const

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:161

Parameters

const llvm::object::RelocationRef& R

¶bool relocationNeedsStub(
    const llvm::object::RelocationRef& R) const

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:162

Parameters

const llvm::object::RelocationRef& R

¶void resolveAArch64Branch(
    unsigned int SectionID,
    const llvm::RelocationValueRef& Value,
    llvm::object::relocation_iterator RelI,
    llvm::RuntimeDyldImpl::StubMap& Stubs)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:45

Parameters

unsigned int SectionID

const llvm::RelocationValueRef& Value

llvm::object::relocation_iterator RelI

llvm::RuntimeDyldImpl::StubMap& Stubs

¶void resolveAArch64Relocation(
    const llvm::SectionEntry& Section,
    uint64_t Offset,
    uint64_t Value,
    uint32_t Type,
    int64_t Addend)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:39

Parameters

const llvm::SectionEntry& Section

uint64_t Offset

uint64_t Value

uint32_t Type

int64_t Addend

¶bool resolveAArch64ShortBranch(
    unsigned int SectionID,
    llvm::object::relocation_iterator RelI,
    const llvm::RelocationValueRef& Value)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:42

Parameters

unsigned int SectionID

llvm::object::relocation_iterator RelI

const llvm::RelocationValueRef& Value

¶void resolveARMRelocation(
    const llvm::SectionEntry& Section,
    uint64_t Offset,
    uint32_t Value,
    uint32_t Type,
    int32_t Addend)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:48

Parameters

const llvm::SectionEntry& Section

uint64_t Offset

uint32_t Value

uint32_t Type

int32_t Addend

¶void resolveBPFRelocation(
    const llvm::SectionEntry& Section,
    uint64_t Offset,
    uint64_t Value,
    uint32_t Type,
    int64_t Addend)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:60

Parameters

const llvm::SectionEntry& Section

uint64_t Offset

uint64_t Value

uint32_t Type

int64_t Addend

¶void resolveGOTOffsetRelocation(
    unsigned int SectionID,
    uint64_t Offset,
    uint64_t GOTOffset,
    uint32_t Type)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:113

Parameters

unsigned int SectionID

uint64_t Offset

uint64_t GOTOffset

uint32_t Type

¶void resolvePPC32Relocation(
    const llvm::SectionEntry& Section,
    uint64_t Offset,
    uint64_t Value,
    uint32_t Type,
    int64_t Addend)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:51

Parameters

const llvm::SectionEntry& Section

uint64_t Offset

uint64_t Value

uint32_t Type

int64_t Addend

¶void resolvePPC64Relocation(
    const llvm::SectionEntry& Section,
    uint64_t Offset,
    uint64_t Value,
    uint32_t Type,
    int64_t Addend)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:54

Parameters

const llvm::SectionEntry& Section

uint64_t Offset

uint64_t Value

uint32_t Type

int64_t Addend

¶void resolveRelocation(
    const llvm::SectionEntry& Section,
    uint64_t Offset,
    uint64_t Value,
    uint32_t Type,
    int64_t Addend,
    uint64_t SymOffset = 0,
    llvm::RuntimeDyldImpl::SID SectionID = 0)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:28

Parameters

const llvm::SectionEntry& Section

uint64_t Offset

uint64_t Value

uint32_t Type

int64_t Addend

uint64_t SymOffset = 0

llvm::RuntimeDyldImpl::SID SectionID = 0

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

Description

A object file specific relocation resolver

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:188

Parameters

const llvm::RelocationEntry& RE

The relocation to be resolved

uint64_t Value

Target symbol address to apply the relocation action

¶void resolveSystemZRelocation(
    const llvm::SectionEntry& Section,
    uint64_t Offset,
    uint64_t Value,
    uint32_t Type,
    int64_t Addend)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:57

Parameters

const llvm::SectionEntry& Section

uint64_t Offset

uint64_t Value

uint32_t Type

int64_t Addend

¶void resolveX86Relocation(
    const llvm::SectionEntry& Section,
    uint64_t Offset,
    uint32_t Value,
    uint32_t Type,
    int32_t Addend)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:36

Parameters

const llvm::SectionEntry& Section

uint64_t Offset

uint32_t Value

uint32_t Type

int32_t Addend

¶void resolveX86_64Relocation(
    const llvm::SectionEntry& Section,
    uint64_t Offset,
    uint64_t Value,
    uint32_t Type,
    int64_t Addend,
    uint64_t SymOffset)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:32

Parameters

const llvm::SectionEntry& Section

uint64_t Offset

uint64_t Value

uint32_t Type

int64_t Addend

uint64_t SymOffset

¶void setMipsABI(
    const llvm::object::ObjectFile& Obj)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:89

Parameters

const llvm::object::ObjectFile& Obj

¶~RuntimeDyldELF()

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h:179