| 1 | //===- DLL.h ----------------------------------------------------*- C++ -*-===// |
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| 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 | #ifndef LLD_COFF_DLL_H |
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| 10 | #define LLD_COFF_DLL_H |
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| 11 | |
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| 12 | #include "Chunks.h" |
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| 13 | #include "Symbols.h" |
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| 14 | |
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| 15 | namespace lld::coff { |
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| 16 | |
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| 17 | // Windows-specific. |
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| 18 | // IdataContents creates all chunks for the DLL import table. |
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| 19 | // You are supposed to call add() to add symbols and then |
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| 20 | // call create() to populate the chunk vectors. |
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| 21 | class IdataContents { |
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| 22 | public: |
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| 23 | void add(DefinedImportData *sym) { imports.push_back(x: sym); } |
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| 24 | bool empty() { return imports.empty(); } |
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| 25 | |
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| 26 | void create(COFFLinkerContext &ctx); |
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| 27 | |
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| 28 | std::vector<DefinedImportData *> imports; |
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| 29 | std::vector<Chunk *> dirs; |
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| 30 | std::vector<Chunk *> lookups; |
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| 31 | std::vector<Chunk *> addresses; |
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| 32 | std::vector<Chunk *> hints; |
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| 33 | std::vector<Chunk *> dllNames; |
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| 34 | std::vector<Chunk *> auxIat; |
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| 35 | std::vector<Chunk *> auxIatCopy; |
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| 36 | }; |
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| 37 | |
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| 38 | // Windows-specific. |
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| 39 | // DelayLoadContents creates all chunks for the delay-load DLL import table. |
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| 40 | class DelayLoadContents { |
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| 41 | public: |
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| 42 | DelayLoadContents(COFFLinkerContext &ctx) : ctx(ctx) {} |
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| 43 | void add(DefinedImportData *sym) { imports.push_back(x: sym); } |
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| 44 | bool empty() { return imports.empty(); } |
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| 45 | void create(); |
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| 46 | std::vector<Chunk *> getChunks(); |
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| 47 | std::vector<Chunk *> getDataChunks(); |
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| 48 | ArrayRef<Chunk *> getCodeChunks() { return thunks; } |
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| 49 | ArrayRef<Chunk *> getCodePData() { return pdata; } |
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| 50 | ArrayRef<Chunk *> getCodeUnwindInfo() { return unwindinfo; } |
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| 51 | ArrayRef<Chunk *> getAuxIat() { return auxIat; } |
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| 52 | ArrayRef<Chunk *> getAuxIatCopy() { return auxIatCopy; } |
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| 53 | |
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| 54 | uint64_t getDirRVA() { return dirs[0]->getRVA(); } |
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| 55 | uint64_t getDirSize(); |
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| 56 | |
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| 57 | private: |
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| 58 | Chunk *newThunkChunk(DefinedImportData *s, Chunk *tailMerge); |
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| 59 | Chunk *newTailMergeChunk(SymbolTable &symtab, Chunk *dir); |
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| 60 | Chunk *newTailMergePDataChunk(SymbolTable &symtab, Chunk *tm); |
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| 61 | |
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| 62 | std::vector<DefinedImportData *> imports; |
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| 63 | std::vector<Chunk *> dirs; |
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| 64 | std::vector<Chunk *> moduleHandles; |
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| 65 | std::vector<Chunk *> addresses; |
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| 66 | std::vector<Chunk *> names; |
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| 67 | std::vector<Chunk *> hintNames; |
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| 68 | std::vector<Chunk *> thunks; |
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| 69 | std::vector<Chunk *> pdata; |
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| 70 | std::vector<Chunk *> unwindinfo; |
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| 71 | std::vector<Chunk *> dllNames; |
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| 72 | std::vector<Chunk *> auxIat; |
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| 73 | std::vector<Chunk *> auxIatCopy; |
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| 74 | |
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| 75 | COFFLinkerContext &ctx; |
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| 76 | }; |
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| 77 | |
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| 78 | // Create all chunks for the DLL export table. |
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| 79 | void createEdataChunks(SymbolTable &symtab, std::vector<Chunk *> &chunks); |
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| 80 | |
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| 81 | } // namespace lld::coff |
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| 82 | |
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| 83 | #endif |
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| 84 | |
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