| //===------ Mangling.h -- Name Mangling Utilities for ORC -------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Name mangling utilities for ORC. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_EXECUTIONENGINE_ORC_MANGLING_H |
| #define LLVM_EXECUTIONENGINE_ORC_MANGLING_H |
| |
| #include "llvm/ExecutionEngine/Orc/Core.h" |
| #include "llvm/ExecutionEngine/Orc/ThreadSafeModule.h" |
| #include "llvm/IR/Module.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| |
| namespace llvm { |
| namespace orc { |
| |
| /// Mangles symbol names then uniques them in the context of an |
| /// ExecutionSession. |
| class MangleAndInterner { |
| public: |
| MangleAndInterner(ExecutionSession &ES, const DataLayout &DL); |
| SymbolStringPtr operator()(StringRef Name); |
| |
| private: |
| ExecutionSession &ES; |
| const DataLayout &DL; |
| }; |
| |
| /// Maps IR global values to their linker symbol names / flags. |
| /// |
| /// This utility can be used when adding new IR globals in the JIT. |
| class IRSymbolMapper { |
| public: |
| struct ManglingOptions { |
| bool EmulatedTLS = false; |
| }; |
| |
| using SymbolNameToDefinitionMap = std::map<SymbolStringPtr, GlobalValue *>; |
| |
| /// Add mangled symbols for the given GlobalValues to SymbolFlags. |
| /// If a SymbolToDefinitionMap pointer is supplied then it will be populated |
| /// with Name-to-GlobalValue* mappings. Note that this mapping is not |
| /// necessarily one-to-one: thread-local GlobalValues, for example, may |
| /// produce more than one symbol, in which case the map will contain duplicate |
| /// values. |
| static void add(ExecutionSession &ES, const ManglingOptions &MO, |
| ArrayRef<GlobalValue *> GVs, SymbolFlagsMap &SymbolFlags, |
| SymbolNameToDefinitionMap *SymbolToDefinition = nullptr); |
| }; |
| |
| /// Returns a SymbolFlagsMap for the object file represented by the given |
| /// buffer, or an error if the buffer does not contain a valid object file. |
| Expected<std::pair<SymbolFlagsMap, SymbolStringPtr>> |
| getObjectSymbolInfo(ExecutionSession &ES, MemoryBufferRef ObjBuffer); |
| |
| } // End namespace orc |
| } // End namespace llvm |
| |
| #endif // LLVM_EXECUTIONENGINE_ORC_MANGLING_H |