| 1 | //===- DLL.h ----------------------------------------------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef LLD_COFF_DLL_H |
| 10 | #define LLD_COFF_DLL_H |
| 11 | |
| 12 | #include "Chunks.h" |
| 13 | #include "Symbols.h" |
| 14 | |
| 15 | namespace lld::coff { |
| 16 | |
| 17 | // Windows-specific. |
| 18 | // IdataContents creates all chunks for the DLL import table. |
| 19 | // You are supposed to call add() to add symbols and then |
| 20 | // call create() to populate the chunk vectors. |
| 21 | class IdataContents { |
| 22 | public: |
| 23 | void add(DefinedImportData *sym) { imports.push_back(x: sym); } |
| 24 | bool empty() { return imports.empty(); } |
| 25 | |
| 26 | void create(COFFLinkerContext &ctx); |
| 27 | |
| 28 | std::vector<DefinedImportData *> imports; |
| 29 | std::vector<Chunk *> dirs; |
| 30 | std::vector<Chunk *> lookups; |
| 31 | std::vector<Chunk *> addresses; |
| 32 | std::vector<Chunk *> hints; |
| 33 | std::vector<Chunk *> dllNames; |
| 34 | }; |
| 35 | |
| 36 | // Windows-specific. |
| 37 | // DelayLoadContents creates all chunks for the delay-load DLL import table. |
| 38 | class DelayLoadContents { |
| 39 | public: |
| 40 | DelayLoadContents(COFFLinkerContext &ctx) : ctx(ctx) {} |
| 41 | void add(DefinedImportData *sym) { imports.push_back(x: sym); } |
| 42 | bool empty() { return imports.empty(); } |
| 43 | void create(Defined *helper); |
| 44 | std::vector<Chunk *> getChunks(); |
| 45 | std::vector<Chunk *> getDataChunks(); |
| 46 | ArrayRef<Chunk *> getCodeChunks() { return thunks; } |
| 47 | ArrayRef<Chunk *> getCodePData() { return pdata; } |
| 48 | ArrayRef<Chunk *> getCodeUnwindInfo() { return unwindinfo; } |
| 49 | |
| 50 | uint64_t getDirRVA() { return dirs[0]->getRVA(); } |
| 51 | uint64_t getDirSize(); |
| 52 | |
| 53 | private: |
| 54 | Chunk *newThunkChunk(DefinedImportData *s, Chunk *tailMerge); |
| 55 | Chunk *newTailMergeChunk(Chunk *dir); |
| 56 | Chunk *newTailMergePDataChunk(Chunk *tm, Chunk *unwind); |
| 57 | Chunk *newTailMergeUnwindInfoChunk(); |
| 58 | |
| 59 | Defined *helper; |
| 60 | std::vector<DefinedImportData *> imports; |
| 61 | std::vector<Chunk *> dirs; |
| 62 | std::vector<Chunk *> moduleHandles; |
| 63 | std::vector<Chunk *> addresses; |
| 64 | std::vector<Chunk *> names; |
| 65 | std::vector<Chunk *> hintNames; |
| 66 | std::vector<Chunk *> thunks; |
| 67 | std::vector<Chunk *> pdata; |
| 68 | std::vector<Chunk *> unwindinfo; |
| 69 | std::vector<Chunk *> dllNames; |
| 70 | |
| 71 | COFFLinkerContext &ctx; |
| 72 | }; |
| 73 | |
| 74 | // Windows-specific. |
| 75 | // EdataContents creates all chunks for the DLL export table. |
| 76 | class EdataContents { |
| 77 | public: |
| 78 | EdataContents(COFFLinkerContext &ctx); |
| 79 | std::vector<Chunk *> chunks; |
| 80 | |
| 81 | uint64_t getRVA() { return chunks[0]->getRVA(); } |
| 82 | uint64_t getSize() { |
| 83 | return chunks.back()->getRVA() + chunks.back()->getSize() - getRVA(); |
| 84 | } |
| 85 | |
| 86 | COFFLinkerContext &ctx; |
| 87 | }; |
| 88 | |
| 89 | } // namespace lld::coff |
| 90 | |
| 91 | #endif |
| 92 |