LLVM: llvm::orc::EPCGenericRTDyldMemoryManager Class Reference (original) (raw)

Remote-mapped RuntimeDyld-compatible memory manager. More...

#include "[llvm/ExecutionEngine/Orc/EPCGenericRTDyldMemoryManager.h](EPCGenericRTDyldMemoryManager%5F8h%5Fsource.html)"

Public Member Functions
EPCGenericRTDyldMemoryManager (ExecutorProcessControl &EPC, SymbolAddrs SAs)
Create an EPCGenericRTDyldMemoryManager using the given EPC and symbol addrs.
EPCGenericRTDyldMemoryManager (const EPCGenericRTDyldMemoryManager &)=delete
EPCGenericRTDyldMemoryManager & operator= (const EPCGenericRTDyldMemoryManager &)=delete
EPCGenericRTDyldMemoryManager (EPCGenericRTDyldMemoryManager &&)=delete
EPCGenericRTDyldMemoryManager & operator= (EPCGenericRTDyldMemoryManager &&)=delete
~EPCGenericRTDyldMemoryManager () override
uint8_t * allocateCodeSection (uintptr_t Size, unsigned Alignment, unsigned SectionID, StringRef SectionName) override
Allocate a memory block of (at least) the given size suitable for executable code.
uint8_t * allocateDataSection (uintptr_t Size, unsigned Alignment, unsigned SectionID, StringRef SectionName, bool IsReadOnly) override
Allocate a memory block of (at least) the given size suitable for data.
void reserveAllocationSpace (uintptr_t CodeSize, Align CodeAlign, uintptr_t RODataSize, Align RODataAlign, uintptr_t RWDataSize, Align RWDataAlign) override
Inform the memory manager about the total amount of memory required to allocate all sections to be loaded: CodeSize - the total size of all code sections DataSizeRO - the total size of all read-only data sections DataSizeRW - the total size of all read-write data sections.
bool needsToReserveAllocationSpace () override
Override to return true to enable the reserveAllocationSpace callback.
void registerEHFrames (uint8_t *Addr, uint64_t LoadAddr, size_t Size) override
Register the EH frames with the runtime so that c++ exceptions work.
void deregisterEHFrames () override
void notifyObjectLoaded (RuntimeDyld &Dyld, const object::ObjectFile &Obj) override
This method is called after an object has been loaded into memory but before relocations are applied to the loaded sections.
bool finalizeMemory (std::string *ErrMsg=nullptr) override
This method is called when object loading is complete and section page permissions can be applied.
Public Member Functions inherited from llvm::RuntimeDyld::MemoryManager
MemoryManager ()=default
virtual ~MemoryManager ()=default
virtual TLSSection allocateTLSSection (uintptr_t Size, unsigned Alignment, unsigned SectionID, StringRef SectionName)
Allocate a memory block of (at least) the given size to be used for thread-local storage (TLS).
virtual bool allowStubAllocation () const
Override to return false to tell LLVM no stub space will be needed.

Remote-mapped RuntimeDyld-compatible memory manager.

Definition at line 27 of file EPCGenericRTDyldMemoryManager.h.

◆ EPCGenericRTDyldMemoryManager() [2/3]

◆ EPCGenericRTDyldMemoryManager() [3/3]

◆ ~EPCGenericRTDyldMemoryManager()

llvm::orc::EPCGenericRTDyldMemoryManager::~EPCGenericRTDyldMemoryManager ( ) override

◆ allocateCodeSection()

uint8_t * llvm::orc::EPCGenericRTDyldMemoryManager::allocateCodeSection ( uintptr_t Size, unsigned Alignment, unsigned SectionID, StringRef SectionName ) overridevirtual

◆ allocateDataSection()

uint8_t * llvm::orc::EPCGenericRTDyldMemoryManager::allocateDataSection ( uintptr_t Size, unsigned Alignment, unsigned SectionID, StringRef SectionName, bool IsReadOnly ) overridevirtual

◆ CreateWithDefaultBootstrapSymbols()

◆ deregisterEHFrames()

void llvm::orc::EPCGenericRTDyldMemoryManager::deregisterEHFrames ( ) overridevirtual

◆ finalizeMemory()

bool llvm::orc::EPCGenericRTDyldMemoryManager::finalizeMemory ( std::string * ErrMsg = nullptr) overridevirtual

This method is called when object loading is complete and section page permissions can be applied.

It is up to the memory manager implementation to decide whether or not to act on this method. The memory manager will typically allocate all sections as read-write and then apply specific permissions when this method is called. Code sections cannot be executed until this function has been called. In addition, any cache coherency operations needed to reliably use the memory are also performed.

Returns true if an error occurred, false otherwise.

Implements llvm::RuntimeDyld::MemoryManager.

Definition at line 204 of file EPCGenericRTDyldMemoryManager.cpp.

References llvm::orc::tpctypes::FinalizeRequest::Actions, llvm::alignAddr(), llvm::alignTo(), llvm::cantFail(), llvm::orc::shared::WrapperFunctionCall::Create(), llvm::dbgs(), llvm::orc::Exec, I, LLVM_DEBUG, llvm::orc::Read, llvm::orc::tpctypes::FinalizeRequest::Segments, llvm::orc::ExecutorAddrRange::Start, std::swap(), llvm::Expected< T >::takeError(), llvm::toString(), and llvm::orc::Write.

Referenced by operator=().

◆ needsToReserveAllocationSpace()

bool llvm::orc::EPCGenericRTDyldMemoryManager::needsToReserveAllocationSpace ( ) overridevirtual

◆ notifyObjectLoaded()

◆ operator=() [1/2]

◆ operator=() [2/2]

References allocateCodeSection(), allocateDataSection(), CodeSize, deregisterEHFrames(), EPCGenericRTDyldMemoryManager(), finalizeMemory(), needsToReserveAllocationSpace(), notifyObjectLoaded(), registerEHFrames(), reserveAllocationSpace(), llvm::RuntimeDyld::MemoryManager::RuntimeDyld, and Size.

◆ registerEHFrames()

void llvm::orc::EPCGenericRTDyldMemoryManager::registerEHFrames ( uint8_t * Addr, uint64_t LoadAddr, size_t Size ) overridevirtual

◆ reserveAllocationSpace()

void llvm::orc::EPCGenericRTDyldMemoryManager::reserveAllocationSpace ( uintptr_t CodeSize, Align CodeAlign, uintptr_t RODataSize, Align RODataAlign, uintptr_t RWDataSize, Align RWDataAlign ) overridevirtual

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