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//===- DLL.h ----------------------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
#ifndef LLD_COFF_DLL_H
#define LLD_COFF_DLL_H
#include "Chunks.h"
#include "Symbols.h"
namespace lld::coff {
// Windows-specific.
// IdataContents creates all chunks for the DLL import table.
// You are supposed to call add() to add symbols and then
// call create() to populate the chunk vectors.
class IdataContents {
public:
void add(DefinedImportData *sym) { imports.push_back(sym); }
bool empty() { return imports.empty(); }
void create(COFFLinkerContext &ctx);
std::vector<DefinedImportData *> imports;
std::vector<Chunk *> dirs;
std::vector<Chunk *> lookups;
std::vector<Chunk *> addresses;
std::vector<Chunk *> hints;
std::vector<Chunk *> dllNames;
std::vector<Chunk *> auxIat;
std::vector<Chunk *> auxIatCopy;
};
// Windows-specific.
// DelayLoadContents creates all chunks for the delay-load DLL import table.
class DelayLoadContents {
public:
DelayLoadContents(COFFLinkerContext &ctx) : ctx(ctx) {}
void add(DefinedImportData *sym) { imports.push_back(sym); }
bool empty() { return imports.empty(); }
void create();
std::vector<Chunk *> getChunks();
std::vector<Chunk *> getDataChunks();
ArrayRef<Chunk *> getCodeChunks() { return thunks; }
ArrayRef<Chunk *> getCodePData() { return pdata; }
ArrayRef<Chunk *> getCodeUnwindInfo() { return unwindinfo; }
ArrayRef<Chunk *> getAuxIat() { return auxIat; }
ArrayRef<Chunk *> getAuxIatCopy() { return auxIatCopy; }
uint64_t getDirRVA() { return dirs[0]->getRVA(); }
uint64_t getDirSize();
private:
Chunk *newThunkChunk(DefinedImportData *s, Chunk *tailMerge);
Chunk *newTailMergeChunk(SymbolTable &symtab, Chunk *dir);
Chunk *newTailMergePDataChunk(SymbolTable &symtab, Chunk *tm);
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 *> pdata;
std::vector<Chunk *> unwindinfo;
std::vector<Chunk *> dllNames;
std::vector<Chunk *> auxIat;
std::vector<Chunk *> auxIatCopy;
COFFLinkerContext &ctx;
};
// Create all chunks for the DLL export table.
void createEdataChunks(SymbolTable &symtab, std::vector<Chunk *> &chunks);
} // namespace lld::coff
#endif
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