Legacy symbol resolution interface. More...
#include "llvm/ExecutionEngine/JITSymbol.h"
Public Member Functions | |
| void | lookup (const LookupSet &Symbols, OnResolvedFunction OnResolved) final |
| Performs lookup by, for each symbol, first calling findSymbolInLogicalDylib and if that fails calling findSymbol. | |
| Expected< LookupSet > | getResponsibilitySet (const LookupSet &Symbols) final |
| Performs flags lookup by calling findSymbolInLogicalDylib and returning the flags value for that symbol. | |
| virtual JITSymbol | findSymbolInLogicalDylib (const std::string &Name)=0 |
| This method returns the address of the specified symbol if it exists within the logical dynamic library represented by this JITSymbolResolver. | |
| virtual JITSymbol | findSymbol (const std::string &Name)=0 |
| This method returns the address of the specified function or variable. | |
 Public Member Functions inherited from llvm::JITSymbolResolver | |
| 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. | |
| virtual Expected< LookupSet > | getResponsibilitySet (const LookupSet &Symbols)=0 |
| Returns the subset of the given symbols that should be materialized by the caller. | |
| virtual bool | allowsZeroSymbols () |
| Specify if this resolver can return valid symbols with zero value. | |
Additional Inherited Members | |
| Public Types inherited from llvm::JITSymbolResolver | |
| using | LookupSet = std::set< StringRef > |
| using | LookupResult = std::map< StringRef, JITEvaluatedSymbol > |
| using | OnResolvedFunction = unique_function< void(Expected< LookupResult >)> |
Detailed Description
Legacy symbol resolution interface.
Definition at line 401 of file JITSymbol.h.
Member Function Documentation
◆ findSymbol()
|
pure virtual |
This method returns the address of the specified function or variable.
It is used to resolve symbols during module linking.
If the returned symbol's address is equal to ~0ULL then RuntimeDyld will skip all relocations for that symbol, and the client will be responsible for handling them manually.
Implemented in llvm::RTDyldMemoryManager, and llvm::LinkingSymbolResolver.
Referenced by lookup().
◆ findSymbolInLogicalDylib()
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pure virtual |
This method returns the address of the specified symbol if it exists within the logical dynamic library represented by this JITSymbolResolver.
Unlike findSymbol, queries through this interface should return addresses for hidden symbols.
This is of particular importance for the Orc JIT APIs, which support lazy compilation by breaking up modules: Each of those broken out modules must be able to resolve hidden symbols provided by the others. Clients writing memory managers for MCJIT can usually ignore this method.
This method will be queried by RuntimeDyld when checking for previous definitions of common symbols.
Implemented in llvm::RTDyldMemoryManager, and llvm::LinkingSymbolResolver.
Referenced by getResponsibilitySet(), and lookup().
◆ getResponsibilitySet()
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finalvirtual |
Performs flags lookup by calling findSymbolInLogicalDylib and returning the flags value for that symbol.
Implements llvm::JITSymbolResolver.
Definition at line 149 of file JITSymbol.cpp.
References findSymbolInLogicalDylib(), and Sym.
◆ lookup()
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finalvirtual |
Performs lookup by, for each symbol, first calling findSymbolInLogicalDylib and if that fails calling findSymbol.
Implements llvm::JITSymbolResolver.
Definition at line 108 of file JITSymbol.cpp.
References findSymbol(), findSymbolInLogicalDylib(), llvm::inconvertibleErrorCode(), and Sym.
The documentation for this class was generated from the following files:
- include/llvm/ExecutionEngine/JITSymbol.h
- lib/ExecutionEngine/RuntimeDyld/JITSymbol.cpp
- lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
