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📄 Config.h(1.82 KB)
📄 Driver.cpp(13.5 KB)
📄 Driver.h(984 B)
📄 ExportTrie.cpp(8.59 KB)
📄 ExportTrie.h(1.23 KB)
📄 InputFiles.cpp(16.85 KB)
📄 InputFiles.h(3.69 KB)
📄 InputSection.cpp(1.34 KB)
📄 InputSection.h(1.81 KB)
📄 MachOStructs.h(1 KB)
📄 MergedOutputSection.cpp(2.37 KB)
📄 MergedOutputSection.h(1.68 KB)
📄 Options.td(53.33 KB)
📄 OutputSection.cpp(596 B)
📄 OutputSection.h(2.23 KB)
📄 OutputSegment.cpp(1.86 KB)
📄 OutputSegment.h(1.64 KB)
📄 SymbolTable.cpp(2.35 KB)
📄 SymbolTable.h(1.29 KB)
📄 Symbols.cpp(756 B)
📄 Symbols.h(3.44 KB)
📄 SyntheticSections.cpp(13.87 KB)
📄 SyntheticSections.h(9.23 KB)
📄 Target.cpp(478 B)
📄 Target.h(2.27 KB)
📄 Writer.cpp(16.29 KB)
📄 Writer.h(738 B)

Editing: SymbolTable.cpp

//===- SymbolTable.cpp ----------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

#include "SymbolTable.h"
#include "InputFiles.h"
#include "Symbols.h"
#include "lld/Common/ErrorHandler.h"
#include "lld/Common/Memory.h"

using namespace llvm;
using namespace lld;
using namespace lld::macho;

Symbol *SymbolTable::find(StringRef name) {
  auto it = symMap.find(llvm::CachedHashStringRef(name));
  if (it == symMap.end())
    return nullptr;
  return symVector[it->second];
}

std::pair<Symbol *, bool> SymbolTable::insert(StringRef name) {
  auto p = symMap.insert({CachedHashStringRef(name), (int)symVector.size()});

// Name already present in the symbol table.
  if (!p.second)
    return {symVector[p.first->second], false};

// Name is a new symbol.
  Symbol *sym = reinterpret_cast<Symbol *>(make<SymbolUnion>());
  symVector.push_back(sym);
  return {sym, true};
}

Symbol *SymbolTable::addDefined(StringRef name, InputSection *isec,
                                uint32_t value) {
  Symbol *s;
  bool wasInserted;
  std::tie(s, wasInserted) = insert(name);

if (!wasInserted && isa<Defined>(s))
    error("duplicate symbol: " + name);

replaceSymbol<Defined>(s, name, isec, value);
  return s;
}

Symbol *SymbolTable::addUndefined(StringRef name) {
  Symbol *s;
  bool wasInserted;
  std::tie(s, wasInserted) = insert(name);

if (wasInserted)
    replaceSymbol<Undefined>(s, name);
  else if (LazySymbol *lazy = dyn_cast<LazySymbol>(s))
    lazy->fetchArchiveMember();
  return s;
}

Symbol *SymbolTable::addDylib(StringRef name, DylibFile *file) {
  Symbol *s;
  bool wasInserted;
  std::tie(s, wasInserted) = insert(name);

if (wasInserted || isa<Undefined>(s))
    replaceSymbol<DylibSymbol>(s, file, name);
  return s;
}

Symbol *SymbolTable::addLazy(StringRef name, ArchiveFile *file,
                             const llvm::object::Archive::Symbol &sym) {
  Symbol *s;
  bool wasInserted;
  std::tie(s, wasInserted) = insert(name);

if (wasInserted)
    replaceSymbol<LazySymbol>(s, file, sym);
  else if (isa<Undefined>(s))
    file->fetch(sym);
  return s;
}

SymbolTable *macho::symtab;

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Editing: SymbolTable.cpp

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