LLVM  8.0.0svn
Public Types | Public Member Functions | List of all members
llvm::JITSymbolResolver Class Referenceabstract

Symbol resolution interface. More...

#include "llvm/ExecutionEngine/JITSymbol.h"

Inheritance diagram for llvm::JITSymbolResolver:
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Public Types

using LookupSet = std::set< StringRef >
 
using LookupResult = std::map< StringRef, JITEvaluatedSymbol >
 
using OnResolvedFunction = std::function< void(Expected< LookupResult >)>
 

Public Member Functions

virtual ~JITSymbolResolver ()=default
 
virtual void lookup (const LookupSet &Symbols, OnResolvedFunction OnResolved)=0
 Returns the fully resolved address and flags for each of the given symbols. More...
 
virtual Expected< LookupSetgetResponsibilitySet (const LookupSet &Symbols)=0
 Returns the subset of the given symbols that should be materialized by the caller. More...
 

Detailed Description

Symbol resolution interface.

Allows symbol flags and addresses to be looked up by name. Symbol queries are done in bulk (i.e. you request resolution of a set of symbols, rather than a single one) to reduce IPC overhead in the case of remote JITing, and expose opportunities for parallel compilation.

Definition at line 344 of file JITSymbol.h.

Member Typedef Documentation

◆ LookupResult

Definition at line 347 of file JITSymbol.h.

◆ LookupSet

Definition at line 346 of file JITSymbol.h.

◆ OnResolvedFunction

Definition at line 348 of file JITSymbol.h.

Constructor & Destructor Documentation

◆ ~JITSymbolResolver()

virtual llvm::JITSymbolResolver::~JITSymbolResolver ( )
virtualdefault

Member Function Documentation

◆ getResponsibilitySet()

virtual Expected<LookupSet> llvm::JITSymbolResolver::getResponsibilitySet ( const LookupSet Symbols)
pure virtual

Returns the subset of the given symbols that should be materialized by the caller.

Only weak/common symbols should be looked up, as strong definitions are implicitly always part of the caller's responsibility.

Implemented in llvm::LegacyJITSymbolResolver, and llvm::orc::JITSymbolResolverAdapter.

◆ lookup()

virtual void llvm::JITSymbolResolver::lookup ( const LookupSet Symbols,
OnResolvedFunction  OnResolved 
)
pure virtual

Returns the fully resolved address and flags for each of the given symbols.

This method will return an error if any of the given symbols can not be resolved, or if the resolution process itself triggers an error.

Implemented in llvm::LegacyJITSymbolResolver, and llvm::orc::JITSymbolResolverAdapter.

Referenced by llvm::RuntimeDyldCheckerImpl::checkAllRulesInBuffer().


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