blob: 871687f75eb7ca050c1b18340d6365a0195c87d6 [file] [log] [blame]
//===- SymbolTable.h --------------------------------------------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#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 {
Symbol *addDefined(StringRef name, InputSection *isec, uint32_t value,
bool isWeakDef, bool isPrivateExtern);
Symbol *addUndefined(StringRef name, bool isWeakRef);
Symbol *addCommon(StringRef name, InputFile *, uint64_t size, uint32_t align,
bool isPrivateExtern);
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);
std::pair<Symbol *, bool> insert(StringRef name);
llvm::DenseMap<llvm::CachedHashStringRef, int> symMap;
std::vector<Symbol *> symVector;
extern void treatUndefinedSymbol(StringRef symbolName, StringRef fileName);
extern SymbolTable *symtab;
} // namespace macho
} // namespace lld