Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/lld/COFF/DLL.h

@@ -0,0 +1,84 @@
+//===- DLL.h ----------------------------------------------------*- C++ -*-===//
+//
+//                             The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLD_COFF_DLL_H
+#define LLD_COFF_DLL_H
+
+#include "Chunks.h"
+#include "Symbols.h"
+
+namespace lld {
+namespace coff {
+
+// Windows-specific.
+// IdataContents creates all chunks for the DLL import table.
+// You are supposed to call add() to add symbols and then
+// call getChunks() to get a list of chunks.
+class IdataContents {
+public:
+  void add(DefinedImportData *Sym) { Imports.push_back(Sym); }
+  bool empty() { return Imports.empty(); }
+  std::vector<Chunk *> getChunks();
+
+  uint64_t getDirRVA() { return Dirs[0]->getRVA(); }
+  uint64_t getDirSize();
+  uint64_t getIATRVA() { return Addresses[0]->getRVA(); }
+  uint64_t getIATSize();
+
+private:
+  void create();
+
+  std::vector<DefinedImportData *> Imports;
+  std::vector<Chunk *> Dirs;
+  std::vector<Chunk *> Lookups;
+  std::vector<Chunk *> Addresses;
+  std::vector<Chunk *> Hints;
+  std::vector<Chunk *> DLLNames;
+};
+
+// Windows-specific.
+// DelayLoadContents creates all chunks for the delay-load DLL import table.
+class DelayLoadContents {
+public:
+  void add(DefinedImportData *Sym) { Imports.push_back(Sym); }
+  bool empty() { return Imports.empty(); }
+  void create(Defined *Helper);
+  std::vector<Chunk *> getChunks();
+  std::vector<Chunk *> getDataChunks();
+  ArrayRef<Chunk *> getCodeChunks() { return Thunks; }
+
+  uint64_t getDirRVA() { return Dirs[0]->getRVA(); }
+  uint64_t getDirSize();
+
+private:
+  Chunk *newThunkChunk(DefinedImportData *S, Chunk *Dir);
+
+  Defined *Helper;
+  std::vector<DefinedImportData *> Imports;
+  std::vector<Chunk *> Dirs;
+  std::vector<Chunk *> ModuleHandles;
+  std::vector<Chunk *> Addresses;
+  std::vector<Chunk *> Names;
+  std::vector<Chunk *> HintNames;
+  std::vector<Chunk *> Thunks;
+  std::vector<Chunk *> DLLNames;
+};
+
+// Windows-specific.
+// EdataContents creates all chunks for the DLL export table.
+class EdataContents {
+public:
+  EdataContents();
+  std::vector<Chunk *> Chunks;
+};
+
+} // namespace coff
+} // namespace lld
+
+#endif