typename ELFT::SymRange ELFFileBase<ELFT>::getElfSymbols(bool OnlyGlobals) {
if (!Symtab)
return Elf_Sym_Range(nullptr, nullptr);
Elf_Sym_Range Syms = ELFObj.symbols(Symtab);
uint32_t NumSymbols = std::distance(Syms.begin(), Syms.end());
uint32_t FirstNonLocal = Symtab->sh_info;
if (FirstNonLocal > NumSymbols)
fatal("invalid sh_info in symbol table");
if (OnlyGlobals)
return makeArrayRef(Syms.begin() + FirstNonLocal, Syms.end());
return makeArrayRef(Syms.begin(), Syms.end());
}
template <class ELFT> void elf::ObjectFile<ELFT>::initializeSymbols() {
this->initStringTable();
Elf_Sym_Range Syms = this->getElfSymbols(false);
uint32_t NumSymbols = std::distance(Syms.begin(), Syms.end());
SymbolBodies.reserve(NumSymbols);
for (const Elf_Sym &Sym : Syms)
SymbolBodies.push_back(createSymbolBody(&Sym));
}
// Fully parse the shared object file. This must be called after parseSoName().
template <class ELFT> void SharedFile<ELFT>::parseRest() {
Elf_Sym_Range Syms = this->getElfSymbols(true);
uint32_t NumSymbols = std::distance(Syms.begin(), Syms.end());
SymbolBodies.reserve(NumSymbols);
for (const Elf_Sym &Sym : Syms) {
StringRef Name = check(Sym.getName(this->StringTable));
if (Sym.isUndefined())
Undefs.push_back(Name);
else
SymbolBodies.emplace_back(this, Name, Sym);
}
}
static void reportUndefined(const SymbolTable<ELFT> &S, const SymbolBody &Sym) {
typedef typename ELFFile<ELFT>::Elf_Sym Elf_Sym;
typedef typename ELFFile<ELFT>::Elf_Sym_Range Elf_Sym_Range;
if (Config->Shared && !Config->NoUndefined)
return;
const Elf_Sym &SymE = cast<ELFSymbolBody<ELFT>>(Sym).Sym;
ELFFileBase<ELFT> *SymFile = nullptr;
for (const std::unique_ptr<ObjectFile<ELFT>> &File : S.getObjectFiles()) {
Elf_Sym_Range Syms = File->getObj().symbols(File->getSymbolTable());
if (&SymE > Syms.begin() && &SymE < Syms.end())
SymFile = File.get();
}
std::string Message = "undefined symbol: " + Sym.getName().str();
if (SymFile)
Message += " in " + SymFile->getName().str();
if (Config->NoInhibitExec)
warning(Message);
else
error(Message);
}