LLVM API Documentation

Public Member Functions | Protected Types | Protected Member Functions | Protected Attributes | Friends
llvm::RuntimeDyldImpl Class Reference

#include <RuntimeDyldImpl.h>

Inheritance diagram for llvm::RuntimeDyldImpl:
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Collaboration diagram for llvm::RuntimeDyldImpl:
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List of all members.

Public Member Functions

 RuntimeDyldImpl (RTDyldMemoryManager *mm)
virtual ~RuntimeDyldImpl ()
void setProcessAllSections (bool ProcessAllSections)
void setRuntimeDyldChecker (RuntimeDyldCheckerImpl *Checker)
virtual std::unique_ptr
< RuntimeDyld::LoadedObjectInfo
loadObject (const object::ObjectFile &Obj)=0
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 isCompatibleFile (const ObjectFile &Obj) const =0
virtual void registerEHFrames ()
virtual void deregisterEHFrames ()
virtual void finalizeLoad (const ObjectFile &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< SymbolLocSymbolTableMap
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 (const ObjectFile &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 (const ObjectFile &Obj, const SectionRef &Section, bool IsCode)
 Emits section data from the object file to the MemoryManager.
unsigned findOrEmitSection (const ObjectFile &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, const ObjectFile &Obj, ObjSectionToIDMap &ObjSectionToID, 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 (const ObjectFile &Obj, uint64_t &CodeSize, uint64_t &DataSizeRO, uint64_t &DataSizeRW)
unsigned computeSectionStubBufSize (const ObjectFile &Obj, const SectionRef &Section)
std::pair< unsigned, unsignedloadObjectImpl (const object::ObjectFile &Obj)

Protected Attributes

RTDyldMemoryManagerMemMgr
RuntimeDyldCheckerImplChecker
SectionList Sections
SymbolTableMap GlobalSymbolTable
DenseMap< unsigned,
RelocationList
Relocations
StringMap< RelocationListExternalSymbolRelocations
Triple::ArchType Arch
bool IsTargetLittleEndian
bool ProcessAllSections
sys::Mutex lock
bool HasError
std::string ErrorStr

Friends

class RuntimeDyld::LoadedObjectInfo
class RuntimeDyldCheckerImpl

Detailed Description

Definition at line 159 of file RuntimeDyldImpl.h.


Member Typedef Documentation

Definition at line 188 of file RuntimeDyldImpl.h.

Definition at line 190 of file RuntimeDyldImpl.h.

Definition at line 179 of file RuntimeDyldImpl.h.

Definition at line 197 of file RuntimeDyldImpl.h.

Definition at line 171 of file RuntimeDyldImpl.h.

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

Definition at line 174 of file RuntimeDyldImpl.h.

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

Definition at line 209 of file RuntimeDyldImpl.h.

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

Definition at line 183 of file RuntimeDyldImpl.h.

Definition at line 184 of file RuntimeDyldImpl.h.


Constructor & Destructor Documentation

Definition at line 357 of file RuntimeDyldImpl.h.

Definition at line 29 of file RuntimeDyld.cpp.


Member Function Documentation

Definition at line 404 of file RuntimeDyldImpl.h.

void llvm::RuntimeDyldImpl::computeTotalAllocSize ( const ObjectFile Obj,
uint64_t &  CodeSize,
uint64_t &  DataSizeRO,
uint64_t &  DataSizeRW 
) [protected]
uint8_t * llvm::RuntimeDyldImpl::createStubFunction ( uint8_t *  Addr,
unsigned  AbiVariant = 0 
) [protected]

Reimplemented in llvm::RuntimeDyldELF.

Definition at line 38 of file RuntimeDyld.cpp.

void llvm::RuntimeDyldImpl::emitCommonSymbols ( const ObjectFile 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 416 of file RuntimeDyld.cpp.

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

unsigned llvm::RuntimeDyldImpl::emitSection ( const ObjectFile Obj,
const SectionRef Section,
bool  IsCode 
) [protected]
bool llvm::RuntimeDyldImpl::Error ( const Twine Msg) [inline, protected]
virtual void llvm::RuntimeDyldImpl::finalizeLoad ( const ObjectFile ObjImg,
ObjSectionToIDMap SectionMap 
) [inline, virtual]
unsigned llvm::RuntimeDyldImpl::findOrEmitSection ( const ObjectFile 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:
IsCodeif it's true then allocateCodeSection() will be used for emmits, else allocateDataSection() will be used.
Returns:
SectionID.

Definition at line 538 of file RuntimeDyld.cpp.

References llvm::ARMBuildAttrs::Section.

Referenced by llvm::RuntimeDyldELF::processRelocationRef().

Definition at line 407 of file RuntimeDyldImpl.h.

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

Definition at line 247 of file RuntimeDyldImpl.h.

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

Definition at line 243 of file RuntimeDyldImpl.h.

virtual unsigned llvm::RuntimeDyldImpl::getStubAlignment ( ) [protected, pure virtual]
uint8_t* llvm::RuntimeDyldImpl::getSymbolAddress ( StringRef  Name) const [inline]

Definition at line 374 of file RuntimeDyldImpl.h.

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

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

Definition at line 384 of file RuntimeDyldImpl.h.

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

Definition at line 401 of file RuntimeDyldImpl.h.

virtual bool llvm::RuntimeDyldImpl::isCompatibleFile ( const ObjectFile Obj) const [pure virtual]
void llvm::RuntimeDyldImpl::mapSectionAddress ( const void *  LocalAddress,
uint64_t  TargetAddress 
)

Definition at line 101 of file RuntimeDyld.cpp.

References llvm_unreachable.

virtual relocation_iterator llvm::RuntimeDyldImpl::processRelocationRef ( unsigned  SectionID,
relocation_iterator  RelI,
const ObjectFile Obj,
ObjSectionToIDMap ObjSectionToID,
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).

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

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

uint64_t llvm::RuntimeDyldImpl::readBytesUnaligned ( uint8_t *  Src,
unsigned  Size 
) const [protected]

Endian-aware read Read the least significant Size bytes from Src.

Definition at line 386 of file RuntimeDyld.cpp.

Referenced by llvm::RuntimeDyldMachOARM::decodeAddend(), and llvm::RuntimeDyldMachOARM::resolveRelocation().

void llvm::RuntimeDyldImpl::reassignSectionAddress ( unsigned  SectionID,
uint64_t  Addr 
)

Definition at line 653 of file RuntimeDyld.cpp.

References llvm::dbgs(), DEBUG, llvm::format(), and Name.

virtual void llvm::RuntimeDyldImpl::resolveRelocation ( const RelocationEntry RE,
uint64_t  Value 
) [protected, pure virtual]

A object file specific relocation resolver.

Parameters:
REThe relocation to be resolved
ValueTarget symbol address to apply the relocation action

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

void llvm::RuntimeDyldImpl::resolveRelocationList ( const RelocationList Relocs,
uint64_t  Value 
) [protected]

Resolves relocations from Relocs list with address from Value.

Definition at line 672 of file RuntimeDyld.cpp.

References llvm::RelocationEntry::SectionID, and llvm::SmallVectorTemplateCommon< T, typename >::size().

Definition at line 79 of file RuntimeDyld.cpp.

References llvm::dbgs(), DEBUG, llvm::dumpSectionMemory(), and llvm::format().

void llvm::RuntimeDyldImpl::setProcessAllSections ( bool  ProcessAllSections) [inline]

Definition at line 363 of file RuntimeDyldImpl.h.

Definition at line 367 of file RuntimeDyldImpl.h.

virtual void llvm::RuntimeDyldImpl::updateGOTEntries ( StringRef  Name,
uint64_t  Addr 
) [inline, protected, virtual]

Update GOT entries for external symbols.

Definition at line 342 of file RuntimeDyldImpl.h.

void llvm::RuntimeDyldImpl::writeBytesUnaligned ( uint64_t  Value,
uint8_t *  Dst,
unsigned  Size 
) const [protected]

Endian-aware write. Write the least significant Size bytes from Value to Dst.

Definition at line 400 of file RuntimeDyld.cpp.

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

void llvm::RuntimeDyldImpl::writeInt16BE ( uint8_t *  Addr,
uint16_t  Value 
) [inline, protected]

Definition at line 251 of file RuntimeDyldImpl.h.

References llvm::sys::swapByteOrder().

void llvm::RuntimeDyldImpl::writeInt32BE ( uint8_t *  Addr,
uint32_t  Value 
) [inline, protected]

Definition at line 258 of file RuntimeDyldImpl.h.

References llvm::sys::swapByteOrder().

Referenced by llvm::RuntimeDyldELF::processRelocationRef().

void llvm::RuntimeDyldImpl::writeInt64BE ( uint8_t *  Addr,
uint64_t  Value 
) [inline, protected]

Definition at line 267 of file RuntimeDyldImpl.h.

References llvm::sys::swapByteOrder().


Friends And Related Function Documentation

friend class RuntimeDyld::LoadedObjectInfo [friend]

Definition at line 160 of file RuntimeDyldImpl.h.

friend class RuntimeDyldCheckerImpl [friend]

Definition at line 161 of file RuntimeDyldImpl.h.


Member Data Documentation

Definition at line 211 of file RuntimeDyldImpl.h.

Referenced by llvm::RuntimeDyldELF::processRelocationRef().

Definition at line 167 of file RuntimeDyldImpl.h.

std::string llvm::RuntimeDyldImpl::ErrorStr [protected]

Definition at line 234 of file RuntimeDyldImpl.h.

Definition at line 206 of file RuntimeDyldImpl.h.

Definition at line 185 of file RuntimeDyldImpl.h.

Referenced by llvm::RuntimeDyldELF::processRelocationRef().

Definition at line 233 of file RuntimeDyldImpl.h.

Definition at line 212 of file RuntimeDyldImpl.h.

Referenced by llvm::RuntimeDyldELF::processRelocationRef().

Definition at line 228 of file RuntimeDyldImpl.h.

Definition at line 216 of file RuntimeDyldImpl.h.

Definition at line 201 of file RuntimeDyldImpl.h.


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