You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
1.8 KiB
64 lines
1.8 KiB
//===- SymbolTable.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_MACHO_SYMBOL_TABLE_H
|
|
#define LLD_MACHO_SYMBOL_TABLE_H
|
|
|
|
#include "lld/Common/LLVM.h"
|
|
#include "llvm/ADT/CachedHashString.h"
|
|
#include "llvm/ADT/DenseMap.h"
|
|
#include "llvm/Object/Archive.h"
|
|
|
|
namespace lld {
|
|
namespace macho {
|
|
|
|
class ArchiveFile;
|
|
class DylibFile;
|
|
class InputFile;
|
|
class InputSection;
|
|
class MachHeaderSection;
|
|
class Symbol;
|
|
|
|
/*
|
|
* Note that the SymbolTable handles name collisions by calling
|
|
* replaceSymbol(), which does an in-place update of the Symbol via `placement
|
|
* new`. Therefore, there is no need to update any relocations that hold
|
|
* pointers the "old" Symbol -- they will automatically point to the new one.
|
|
*/
|
|
class SymbolTable {
|
|
public:
|
|
Symbol *addDefined(StringRef name, InputSection *isec, uint32_t value,
|
|
bool isWeakDef);
|
|
|
|
Symbol *addUndefined(StringRef name);
|
|
|
|
Symbol *addCommon(StringRef name, InputFile *, uint64_t size, uint32_t align);
|
|
|
|
Symbol *addDylib(StringRef name, DylibFile *file, bool isWeakDef, bool isTlv);
|
|
|
|
Symbol *addLazy(StringRef name, ArchiveFile *file,
|
|
const llvm::object::Archive::Symbol &sym);
|
|
|
|
Symbol *addDSOHandle(const MachHeaderSection *);
|
|
|
|
ArrayRef<Symbol *> getSymbols() const { return symVector; }
|
|
Symbol *find(StringRef name);
|
|
|
|
private:
|
|
std::pair<Symbol *, bool> insert(StringRef name);
|
|
llvm::DenseMap<llvm::CachedHashStringRef, int> symMap;
|
|
std::vector<Symbol *> symVector;
|
|
};
|
|
|
|
extern SymbolTable *symtab;
|
|
|
|
} // namespace macho
|
|
} // namespace lld
|
|
|
|
#endif
|