llvm::orc::LazyCallThroughManager Class Reference

Manages a set of 'lazy call-through' trampolines. More...

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

Inheritance diagram for llvm::orc::LazyCallThroughManager:

Classes
struct	ReexportsEntry

Public Types
using	NotifyResolvedFunction = unique_function< Error(ExecutorAddr ResolvedAddr)>

Public Member Functions
	LazyCallThroughManager (ExecutionSession &ES, ExecutorAddr ErrorHandlerAddr, TrampolinePool *TP)
Expected< ExecutorAddr >	getCallThroughTrampoline (JITDylib &SourceJD, SymbolStringPtr SymbolName, NotifyResolvedFunction NotifyResolved)
void	resolveTrampolineLandingAddress (ExecutorAddr TrampolineAddr, TrampolinePool::NotifyLandingResolvedFunction NotifyLandingResolved)
virtual	~LazyCallThroughManager ()=default

Protected Types
using	NotifyLandingResolvedFunction = TrampolinePool::NotifyLandingResolvedFunction

Protected Member Functions
ExecutorAddr	reportCallThroughError (Error Err)
Expected< ReexportsEntry >	findReexport (ExecutorAddr TrampolineAddr)
Error	notifyResolved (ExecutorAddr TrampolineAddr, ExecutorAddr ResolvedAddr)
void	setTrampolinePool (TrampolinePool &TP)

Detailed Description

Manages a set of 'lazy call-through' trampolines.

These are compiler re-entry trampolines that are pre-bound to look up a given symbol in a given JITDylib, then jump to that address. Since compilation of symbols is triggered on first lookup, these call-through trampolines can be used to implement lazy compilation.

The easiest way to construct these call-throughs is using the lazyReexport function.

Definition at line 39 of file LazyReexports.h.

Member Typedef Documentation

NotifyLandingResolvedFunction

using llvm::orc::LazyCallThroughManager::NotifyLandingResolvedFunction = TrampolinePool::NotifyLandingResolvedFunction

protected

Definition at line 60 of file LazyReexports.h.

NotifyResolvedFunction

using llvm::orc::LazyCallThroughManager::NotifyResolvedFunction = unique_function<Error(ExecutorAddr ResolvedAddr)>

Definition at line 41 of file LazyReexports.h.

Constructor & Destructor Documentation

LazyCallThroughManager()

llvm::orc::LazyCallThroughManager::LazyCallThroughManager	(	ExecutionSession &	ES,
		ExecutorAddr	ErrorHandlerAddr,
		TrampolinePool *	TP
	)

Definition at line 21 of file LazyReexports.cpp.

~LazyCallThroughManager()

virtual llvm::orc::LazyCallThroughManager::~LazyCallThroughManager ( )

virtualdefault

Member Function Documentation

findReexport()

Expected< LazyCallThroughManager::ReexportsEntry > llvm::orc::LazyCallThroughManager::findReexport ( ExecutorAddr  TrampolineAddr )

protected

Definition at line 48 of file LazyReexports.cpp.

References llvm::createStringError(), llvm::formatv(), I, and llvm::inconvertibleErrorCode().

Referenced by resolveTrampolineLandingAddress().

getCallThroughTrampoline()

Expected< ExecutorAddr > llvm::orc::LazyCallThroughManager::getCallThroughTrampoline	(	JITDylib &	SourceJD,
		SymbolStringPtr	SymbolName,
		NotifyResolvedFunction	NotifyResolved
	)

Definition at line 26 of file LazyReexports.cpp.

References assert(), and llvm::orc::TrampolinePool::getTrampoline().

notifyResolved()

Error llvm::orc::LazyCallThroughManager::notifyResolved ( ExecutorAddr  TrampolineAddr, ExecutorAddr  ResolvedAddr  )

protected

Definition at line 58 of file LazyReexports.cpp.

References I, and llvm::Error::success().

Referenced by resolveTrampolineLandingAddress().

reportCallThroughError()

ExecutorAddr llvm::orc::LazyCallThroughManager::reportCallThroughError ( Error  Err )

protected

Definition at line 42 of file LazyReexports.cpp.

References llvm::orc::ExecutionSession::reportError().

Referenced by resolveTrampolineLandingAddress().

resolveTrampolineLandingAddress()

void llvm::orc::LazyCallThroughManager::resolveTrampolineLandingAddress	(	ExecutorAddr	TrampolineAddr,
		TrampolinePool::NotifyLandingResolvedFunction	NotifyLandingResolved
	)

Definition at line 73 of file LazyReexports.cpp.

References assert(), findReexport(), llvm::orc::ExecutionSession::lookup(), llvm::orc::makeJITDylibSearchOrder(), llvm::orc::MatchAllSymbols, llvm::orc::NoDependenciesToRegister, notifyResolved(), llvm::orc::Ready, reportCallThroughError(), llvm::orc::Result, and llvm::orc::Static.

setTrampolinePool()

void llvm::orc::LazyCallThroughManager::setTrampolinePool ( TrampolinePool &  TP )

inlineprotected

Definition at line 71 of file LazyReexports.h.

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

• include/llvm/ExecutionEngine/Orc/LazyReexports.h
• lib/ExecutionEngine/Orc/LazyReexports.cpp