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

Inheritance diagram for llvm::orc::SharedMemoryMapper:

Classes
struct	SymbolAddrs

Public Member Functions
	SharedMemoryMapper (ExecutorProcessControl &EPC, SymbolAddrs SAs, size_t PageSize)

unsigned int	getPageSize () override

void	reserve (size_t NumBytes, OnReservedFunction OnReserved) override
	Reserves address space in executor process.

char *	prepare (ExecutorAddr Addr, size_t ContentSize) override
	Provides working memory.

void	initialize (AllocInfo &AI, OnInitializedFunction OnInitialized) override
	Ensures executor memory is synchronized with working copy memory, sends functions to be called after initilization and before deinitialization and applies memory protections Returns a unique address identifying the allocation.

void	deinitialize (ArrayRef< ExecutorAddr > Allocations, OnDeinitializedFunction OnDeInitialized) override
	Runs previously specified deinitialization actions Executor addresses returned by initialize should be passed.

void	release (ArrayRef< ExecutorAddr > Reservations, OnReleasedFunction OnRelease) override
	Release address space acquired through reserve()

	~SharedMemoryMapper () override

Public Member Functions inherited from llvm::orc::MemoryMapper
virtual unsigned int	getPageSize ()=0

virtual void	reserve (size_t NumBytes, OnReservedFunction OnReserved)=0
	Reserves address space in executor process.

virtual char *	prepare (ExecutorAddr Addr, size_t ContentSize)=0
	Provides working memory.

virtual void	initialize (AllocInfo &AI, OnInitializedFunction OnInitialized)=0
	Ensures executor memory is synchronized with working copy memory, sends functions to be called after initilization and before deinitialization and applies memory protections Returns a unique address identifying the allocation.

virtual void	deinitialize (ArrayRef< ExecutorAddr > Allocations, OnDeinitializedFunction OnDeInitialized)=0
	Runs previously specified deinitialization actions Executor addresses returned by initialize should be passed.

virtual void	release (ArrayRef< ExecutorAddr > Reservations, OnReleasedFunction OnRelease)=0
	Release address space acquired through reserve()

virtual	~MemoryMapper ()

Static Public Member Functions
static Expected< std::unique_ptr< SharedMemoryMapper > >	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

Definition at line 124 of file MemoryMapper.h.

Constructor & Destructor Documentation

◆ SharedMemoryMapper()

llvm::orc::SharedMemoryMapper::SharedMemoryMapper	(	ExecutorProcessControl &	EPC,
		SymbolAddrs	SAs,
		size_t	PageSize
	)

Definition at line 197 of file MemoryMapper.cpp.

References llvm_unreachable.

◆ ~SharedMemoryMapper()

llvm::orc::SharedMemoryMapper::~SharedMemoryMapper ( )

override

Definition at line 440 of file MemoryMapper.cpp.

Member Function Documentation

◆ Create()

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

static

Definition at line 206 of file MemoryMapper.cpp.

References llvm::sys::Process::getPageSize(), and llvm::inconvertibleErrorCode().

◆ deinitialize()

void llvm::orc::SharedMemoryMapper::deinitialize	(	ArrayRef< ExecutorAddr >	Allocations,
		OnDeinitializedFunction	OnDeInitialized
	)

overridevirtual

Runs previously specified deinitialization actions Executor addresses returned by initialize should be passed.

Implements llvm::orc::MemoryMapper.

Definition at line 369 of file MemoryMapper.cpp.

References llvm::orc::ExecutorProcessControl::callSPSWrapperAsync(), llvm::cantFail(), llvm::orc::SharedMemoryMapper::SymbolAddrs::Deinitialize, llvm::orc::SharedMemoryMapper::SymbolAddrs::Instance, and llvm::orc::Result.

◆ getPageSize()

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

inlineoverridevirtual

Implements llvm::orc::MemoryMapper.

Definition at line 140 of file MemoryMapper.h.

◆ initialize()

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

overridevirtual

Ensures executor memory is synchronized with working copy memory, sends functions to be called after initilization and before deinitialization and applies memory protections Returns a unique address identifying the allocation.

This address should be passed to deinitialize to run deallocation actions (and reset permissions where possible).

Implements llvm::orc::MemoryMapper.

Definition at line 326 of file MemoryMapper.cpp.

References llvm::orc::MemoryMapper::AllocInfo::Actions, llvm::orc::tpctypes::SharedMemoryFinalizeRequest::Actions, llvm::orc::tpctypes::SharedMemorySegFinalizeRequest::Addr, assert(), llvm::sampleprof::Base, llvm::orc::ExecutorProcessControl::callSPSWrapperAsync(), llvm::cantFail(), llvm::orc::Finalize, llvm::orc::SharedMemoryMapper::SymbolAddrs::Initialize, llvm::orc::SharedMemoryMapper::SymbolAddrs::Instance, llvm::orc::MemoryMapper::AllocInfo::MappingBase, llvm::orc::tpctypes::SharedMemorySegFinalizeRequest::RAG, llvm::orc::Result, llvm::orc::MemoryMapper::AllocInfo::Segments, llvm::orc::tpctypes::SharedMemoryFinalizeRequest::Segments, and llvm::orc::tpctypes::SharedMemorySegFinalizeRequest::Size.