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| 14 | pmbaty | 1 | //===------ Mangling.h -- Name Mangling Utilities for ORC -------*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // Name mangling utilities for ORC. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |||
| 13 | #ifndef LLVM_EXECUTIONENGINE_ORC_MANGLING_H |
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| 14 | #define LLVM_EXECUTIONENGINE_ORC_MANGLING_H |
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| 15 | |||
| 16 | #include "llvm/ExecutionEngine/Orc/Core.h" |
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| 17 | #include "llvm/ExecutionEngine/Orc/ThreadSafeModule.h" |
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| 18 | #include "llvm/IR/Module.h" |
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| 19 | #include "llvm/Support/MemoryBuffer.h" |
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| 20 | |||
| 21 | namespace llvm { |
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| 22 | namespace orc { |
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| 23 | |||
| 24 | /// Mangles symbol names then uniques them in the context of an |
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| 25 | /// ExecutionSession. |
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| 26 | class MangleAndInterner { |
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| 27 | public: |
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| 28 | MangleAndInterner(ExecutionSession &ES, const DataLayout &DL); |
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| 29 | SymbolStringPtr operator()(StringRef Name); |
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| 30 | |||
| 31 | private: |
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| 32 | ExecutionSession &ES; |
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| 33 | const DataLayout &DL; |
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| 34 | }; |
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| 35 | |||
| 36 | /// Maps IR global values to their linker symbol names / flags. |
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| 37 | /// |
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| 38 | /// This utility can be used when adding new IR globals in the JIT. |
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| 39 | class IRSymbolMapper { |
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| 40 | public: |
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| 41 | struct ManglingOptions { |
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| 42 | bool EmulatedTLS = false; |
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| 43 | }; |
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| 44 | |||
| 45 | using SymbolNameToDefinitionMap = std::map<SymbolStringPtr, GlobalValue *>; |
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| 46 | |||
| 47 | /// Add mangled symbols for the given GlobalValues to SymbolFlags. |
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| 48 | /// If a SymbolToDefinitionMap pointer is supplied then it will be populated |
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| 49 | /// with Name-to-GlobalValue* mappings. Note that this mapping is not |
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| 50 | /// necessarily one-to-one: thread-local GlobalValues, for example, may |
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| 51 | /// produce more than one symbol, in which case the map will contain duplicate |
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| 52 | /// values. |
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| 53 | static void add(ExecutionSession &ES, const ManglingOptions &MO, |
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| 54 | ArrayRef<GlobalValue *> GVs, SymbolFlagsMap &SymbolFlags, |
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| 55 | SymbolNameToDefinitionMap *SymbolToDefinition = nullptr); |
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| 56 | }; |
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| 57 | |||
| 58 | } // End namespace orc |
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| 59 | } // End namespace llvm |
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| 60 | |||
| 61 | #endif // LLVM_EXECUTIONENGINE_ORC_MANGLING_H |