Manages remote memory by making SPS-based EPC calls. More...

#include "llvm/ExecutionEngine/Orc/SimpleRemoteMemoryMapper.h"

Inheritance diagram for llvm::orc::SimpleRemoteMemoryMapper:

Classes
struct	SymbolAddrs

Public Member Functions
	SimpleRemoteMemoryMapper (ExecutorProcessControl &EPC, SymbolAddrs SAs)
unsigned int	getPageSize () override
void	reserve (size_t NumBytes, OnReservedFunction OnReserved) override
	Reserves memory in the remote process by calling a remote SPS-wrapper-function with signature.
char *	prepare (jitlink::LinkGraph &G, ExecutorAddr Addr, size_t ContentSize) override
	Provides working memory The LinkGraph parameter is included to allow implementations to allocate working memory from the LinkGraph's allocator, in which case it will be deallocated when the LinkGraph is destroyed.
void	initialize (AllocInfo &AI, OnInitializedFunction OnInitialized) override
	Initializes memory within a previously reserved region (applying protections and running any finalization actions) by calling a remote SPS-wrapper-function with signature.
void	deinitialize (ArrayRef< ExecutorAddr > Allocations, OnDeinitializedFunction OnDeInitialized) override
	Given a series of keys from previous initialize calls, deinitialize previously initialized memory regions (running dealloc actions, resetting permissions and decommitting if possible) by calling a remote SPS-wrapper-function with signature.
void	release (ArrayRef< ExecutorAddr > Reservations, OnReleasedFunction OnRelease) override
	Given a sequence of base addresses from previous reserve calls, release the underlying ranges (deinitializing any remaining regions within them) by calling a remote SPS-wrapper-function with signature.
Public Member Functions inherited from llvm::orc::MemoryMapper
virtual	~MemoryMapper ()

Static Public Member Functions
static Expected< std::unique_ptr< SimpleRemoteMemoryMapper > >	Create (ExecutorProcessControl &EPC, SymbolAddrs SAs)

Additional Inherited Members
Public Types inherited from llvm::orc::MemoryMapper
using	OnReservedFunction = unique_function<void(Expected<ExecutorAddrRange>)>
using	OnInitializedFunction = unique_function<void(Expected<ExecutorAddr>)>
using	OnDeinitializedFunction = unique_function<void(Error)>
using	OnReleasedFunction = unique_function<void(Error)>

Detailed Description

Manages remote memory by making SPS-based EPC calls.

Definition at line 22 of file SimpleRemoteMemoryMapper.h.

Constructor & Destructor Documentation

◆ SimpleRemoteMemoryMapper()

llvm::orc::SimpleRemoteMemoryMapper::SimpleRemoteMemoryMapper	(	ExecutorProcessControl &	EPC,
		SymbolAddrs	SAs )

Definition at line 16 of file SimpleRemoteMemoryMapper.cpp.

Member Function Documentation

◆ Create()

Expected< std::unique_ptr< SimpleRemoteMemoryMapper > > llvm::orc::SimpleRemoteMemoryMapper::Create	(	ExecutorProcessControl &	EPC,
		SymbolAddrs	SAs )

inlinestatic

Definition at line 35 of file SimpleRemoteMemoryMapper.h.

◆ deinitialize()

void llvm::orc::SimpleRemoteMemoryMapper::deinitialize	(	ArrayRef< ExecutorAddr >	Allocations,
		MemoryMapper::OnDeinitializedFunction	OnDeinitialized )

overridevirtual

Given a series of keys from previous initialize calls, deinitialize previously initialized memory regions (running dealloc actions, resetting permissions and decommitting if possible) by calling a remote SPS-wrapper-function with signature.

SPSError(SPSSequence<SPSExecutorAddr> Keys)

Implements llvm::orc::MemoryMapper.

Definition at line 71 of file SimpleRemoteMemoryMapper.cpp.

References llvm::cantFail(), and llvm::orc::Result.

◆ getPageSize()

unsigned int llvm::orc::SimpleRemoteMemoryMapper::getPageSize ( )

inlineoverridevirtual

Implements llvm::orc::MemoryMapper.

Definition at line 39 of file SimpleRemoteMemoryMapper.h.

◆ initialize()

void llvm::orc::SimpleRemoteMemoryMapper::initialize	(	MemoryMapper::AllocInfo &	AI,
		OnInitializedFunction	OnInitialized )

overridevirtual

Initializes memory within a previously reserved region (applying protections and running any finalization actions) by calling a remote SPS-wrapper-function with signature.

SPSExpected<SPSExecutorAddr>(SPSFinalizeRequest)

On success, returns a key that can be used to deinitialize the region.

Implements llvm::orc::MemoryMapper.

Definition at line 44 of file SimpleRemoteMemoryMapper.cpp.

References llvm::orc::MemoryMapper::AllocInfo::Actions, llvm::orc::tpctypes::FinalizeRequest::Actions, llvm::cantFail(), llvm::orc::MemoryMapper::AllocInfo::MappingBase, llvm::orc::Result, llvm::orc::MemoryMapper::AllocInfo::Segments, llvm::orc::tpctypes::FinalizeRequest::Segments, and std::swap().

◆ prepare()

char * llvm::orc::SimpleRemoteMemoryMapper::prepare	(	jitlink::LinkGraph &	G,
		ExecutorAddr	Addr,
		size_t	ContentSize )

overridevirtual

Provides working memory The LinkGraph parameter is included to allow implementations to allocate working memory from the LinkGraph's allocator, in which case it will be deallocated when the LinkGraph is destroyed.

Implements llvm::orc::MemoryMapper.

Definition at line 39 of file SimpleRemoteMemoryMapper.cpp.

References G.

◆ release()

void llvm::orc::SimpleRemoteMemoryMapper::release	(	ArrayRef< ExecutorAddr >	Reservations,
		OnReleasedFunction	OnRelease )

overridevirtual

Given a sequence of base addresses from previous reserve calls, release the underlying ranges (deinitializing any remaining regions within them) by calling a remote SPS-wrapper-function with signature.

SPSError(SPSSequence<SPSExecutorAddr> Bases)

Implements llvm::orc::MemoryMapper.

Definition at line 88 of file SimpleRemoteMemoryMapper.cpp.

References llvm::cantFail(), and llvm::orc::Result.