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

Inheritance diagram for llvm::orc::InProcessMemoryMapper:

Public Member Functions
	InProcessMemoryMapper (size_t PageSize)

unsigned int	getPageSize () override

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

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.

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

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()

	~InProcessMemoryMapper () 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< InProcessMemoryMapper > >	Create ()

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 82 of file MemoryMapper.h.

Constructor & Destructor Documentation

◆ InProcessMemoryMapper()

llvm::orc::InProcessMemoryMapper::InProcessMemoryMapper ( size_t PageSize )

Definition at line 29 of file MemoryMapper.cpp.

◆ ~InProcessMemoryMapper()

llvm::orc::InProcessMemoryMapper::~InProcessMemoryMapper ( )

override

Definition at line 174 of file MemoryMapper.cpp.

References llvm::cantFail(), F, llvm::orc::ExecutorAddr::fromPtr(), P, llvm::release, and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::size().

Member Function Documentation

◆ Create()

Expected< std::unique_ptr< InProcessMemoryMapper > > llvm::orc::InProcessMemoryMapper::Create ( )

static

Definition at line 33 of file MemoryMapper.cpp.

References llvm::sys::Process::getPageSize().

◆ deinitialize()

void llvm::orc::InProcessMemoryMapper::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 107 of file MemoryMapper.cpp.

References llvm::sampleprof::Base, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::erase(), llvm::errorCodeToError(), llvm::joinErrors(), llvm::sys::Memory::MF_READ, llvm::sys::Memory::MF_WRITE, llvm::sys::Memory::protectMappedMemory(), llvm::reverse(), llvm::orc::shared::runDeallocActions(), Size, and llvm::Error::success().

Referenced by release().

◆ getPageSize()

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

inlineoverridevirtual

Implements llvm::orc::MemoryMapper.

Definition at line 88 of file MemoryMapper.h.

◆ initialize()

void llvm::orc::InProcessMemoryMapper::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 62 of file MemoryMapper.cpp.

References llvm::orc::MemoryMapper::AllocInfo::Actions, llvm::sampleprof::Base, llvm::errorCodeToError(), llvm::orc::Exec, llvm::sys::Memory::InvalidateInstructionCache(), llvm::orc::MemoryMapper::AllocInfo::MappingBase, llvm::sys::Memory::protectMappedMemory(), llvm::orc::shared::runFinalizeActions(), llvm::orc::MemoryMapper::AllocInfo::Segments, Size, llvm::orc::ExecutorAddr::toPtr(), and llvm::orc::toSysMemoryProtectionFlags().