class RuntimeDyldMachO

Declaration

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

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

Inherits from: RuntimeDyldImpl

Member Variables

protected SmallVector<llvm::RuntimeDyldMachO:: EHFrameRelatedSections, 2> UnregisteredEHFrameSections

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

• protected RuntimeDyldMachO(RuntimeDyld::MemoryManager & MemMgr, llvm::JITSymbolResolver & Resolver)
• public static std::unique_ptr<RuntimeDyldMachO> create(Triple::ArchType Arch, RuntimeDyld::MemoryManager & MemMgr, llvm::JITSymbolResolver & Resolver)
• protected void dumpRelocationToResolve(const llvm::RelocationEntry & RE, uint64_t Value) const
• protected llvm::RelocationEntry getRelocationEntry(unsigned int SectionID, const llvm::object::ObjectFile & BaseTObj, const llvm::object::relocation_iterator & RI) const
• protected Expected<llvm::RelocationValueRef> getRelocationValueRef(const llvm::object::ObjectFile & BaseTObj, const llvm::object::relocation_iterator & RI, const llvm::RelocationEntry & RE, llvm::RuntimeDyldImpl::ObjSectionToIDMap & ObjSectionToID)
• public llvm::SectionEntry & getSection(unsigned int SectionID)
• protected static llvm::object::section_iterator getSectionByAddress(const llvm::object::MachOObjectFile & Obj, uint64_t Addr)
• public bool isCompatibleFile(const object::ObjectFile & Obj) const
• public std::unique_ptr<RuntimeDyld::LoadedObjectInfo> loadObject(const object::ObjectFile & O)
• protected void makeValueAddendPCRel(llvm::RelocationValueRef & Value, const llvm::object::relocation_iterator & RI, unsigned int OffsetToNextPC)
• protected int64_t memcpyAddend(const llvm::RelocationEntry & RE) const
• protected llvm::Error populateIndirectSymbolPointersSection(const llvm::object::MachOObjectFile & Obj, const llvm::object::SectionRef & PTSection, unsigned int PTSectionID)
• protected Expected<llvm::object::relocation_iterator> processScatteredVANILLA(unsigned int SectionID, llvm::object::relocation_iterator RelI, const llvm::object::ObjectFile & BaseObjT, RuntimeDyldMachO::ObjSectionToIDMap & ObjSectionToID, bool TargetIsLocalThumbFunc = false)

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

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

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

Parameters

RuntimeDyld::MemoryManager& MemMgr

llvm::JITSymbolResolver& Resolver

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

Description

Create a RuntimeDyldMachO instance for the given target architecture.

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:125

Parameters

Triple::ArchType Arch

RuntimeDyld::MemoryManager& MemMgr

llvm::JITSymbolResolver& Resolver

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

Description

Dump information about the relocation entry (RE) and resolved value.

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:109

Parameters

const llvm::RelocationEntry& RE

uint64_t Value

¶llvm::RelocationEntry getRelocationEntry(
    unsigned int SectionID,
    const llvm::object::ObjectFile& BaseTObj,
    const llvm::object::relocation_iterator& RI)
    const

Description

Given a relocation_iterator for a non-scattered relocation, construct a RelocationEntry and fill in the common fields. The 'Addend' field is *not* filled in, since immediate encodings are highly target/opcode specific. For targets/opcodes with simple, contiguous immediates (e.g. X86) the memcpyAddend method can be used to read the immediate.

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:64

Parameters

unsigned int SectionID

const llvm::object::ObjectFile& BaseTObj

const llvm::object::relocation_iterator& RI

¶Expected<llvm::RelocationValueRef>
getRelocationValueRef(
    const llvm::object::ObjectFile& BaseTObj,
    const llvm::object::relocation_iterator& RI,
    const llvm::RelocationEntry& RE,
    llvm::RuntimeDyldImpl::ObjSectionToIDMap&
        ObjSectionToID)

Description

Construct a RelocationValueRef representing the relocation target. For Symbols in known sections, this will return a RelocationValueRef representing a (SectionID, Offset) pair. For Symbols whose section is not known, this will return a (SymbolName, Offset) pair, where the Offset is taken from the instruction immediate (held in RE.Addend). In both cases the Addend field is *NOT* fixed up to be PC-relative. That should be done by the caller where appropriate by calling makePCRel on the RelocationValueRef.

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:98

Parameters

const llvm::object::ObjectFile& BaseTObj

const llvm::object::relocation_iterator& RI

const llvm::RelocationEntry& RE

llvm::RuntimeDyldImpl::ObjSectionToIDMap& ObjSectionToID

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

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:132

Parameters

unsigned int SectionID

¶static llvm::object::section_iterator
getSectionByAddress(
    const llvm::object::MachOObjectFile& Obj,
    uint64_t Addr)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:112

Parameters

const llvm::object::MachOObjectFile& Obj

uint64_t Addr

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

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:134

Parameters

const object::ObjectFile& Obj

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

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:130

Parameters

const object::ObjectFile& O

¶void makeValueAddendPCRel(
    llvm::RelocationValueRef& Value,
    const llvm::object::relocation_iterator& RI,
    unsigned int OffsetToNextPC)

Description

Make the RelocationValueRef addend PC-relative.

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:104

Parameters

llvm::RelocationValueRef& Value

const llvm::object::relocation_iterator& RI

unsigned int OffsetToNextPC

¶int64_t memcpyAddend(
    const llvm::RelocationEntry& RE) const

Description

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

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

Parameters

const llvm::RelocationEntry& RE

¶llvm::Error populateIndirectSymbolPointersSection(
    const llvm::object::MachOObjectFile& Obj,
    const llvm::object::SectionRef& PTSection,
    unsigned int PTSectionID)

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:117

Parameters

const llvm::object::MachOObjectFile& Obj

const llvm::object::SectionRef& PTSection

unsigned int PTSectionID

¶Expected<llvm::object::relocation_iterator>
processScatteredVANILLA(
    unsigned int SectionID,
    llvm::object::relocation_iterator RelI,
    const llvm::object::ObjectFile& BaseObjT,
    RuntimeDyldMachO::ObjSectionToIDMap&
        ObjSectionToID,
    bool TargetIsLocalThumbFunc = false)

Description

Process a scattered vanilla relocation.

Declared at: llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldMachO.h:83

Parameters

unsigned int SectionID

llvm::object::relocation_iterator RelI

const llvm::object::ObjectFile& BaseObjT

RuntimeDyldMachO::ObjSectionToIDMap& ObjSectionToID

bool TargetIsLocalThumbFunc = false