static char getSymbolNMTypeChar(MachOObjectFile &Obj, basic_symbol_iterator I) {
  DataRefImpl Symb = I->getRawDataRefImpl();
  uint8_t NType = getNType(Obj, Symb);

  switch (NType & MachO::N_TYPE) {
  case MachO::N_ABS:
    return 's';
  case MachO::N_INDR:
    return 'i';
  case MachO::N_SECT: {
    section_iterator Sec = Obj.section_end();
    Obj.getSymbolSection(Symb, Sec);
    DataRefImpl Ref = Sec->getRawDataRefImpl();
    StringRef SectionName;
    Obj.getSectionName(Ref, SectionName);
    StringRef SegmentName = Obj.getSectionFinalSegmentName(Ref);
    if (SegmentName == "__TEXT" && SectionName == "__text")
      return 't';
    else if (SegmentName == "__DATA" && SectionName == "__data")
      return 'd';
    else if (SegmentName == "__DATA" && SectionName == "__bss")
      return 'b';
    else
      return 's';
  }
  }

  return '?';
}

static char getNMTypeChar(SymbolicFile &Obj, basic_symbol_iterator I) {
  uint32_t Symflags = I->getFlags();
  if ((Symflags & object::SymbolRef::SF_Weak) && !isa<MachOObjectFile>(Obj)) {
    char Ret = isObject(Obj, I) ? 'v' : 'w';
    if (!(Symflags & object::SymbolRef::SF_Undefined))
      Ret = toupper(Ret);
    return Ret;
  }

  if (Symflags & object::SymbolRef::SF_Undefined)
    return 'U';

  if (Symflags & object::SymbolRef::SF_Common)
    return 'C';

  char Ret = '?';
  if (Symflags & object::SymbolRef::SF_Absolute)
    Ret = 'a';
  else if (IRObjectFile *IR = dyn_cast<IRObjectFile>(&Obj))
    Ret = getSymbolNMTypeChar(*IR, I);
  else if (COFFObjectFile *COFF = dyn_cast<COFFObjectFile>(&Obj))
    Ret = getSymbolNMTypeChar(*COFF, I);
  else if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(&Obj))
    Ret = getSymbolNMTypeChar(*MachO, I);
  else
    Ret = getSymbolNMTypeChar(cast<ELFObjectFileBase>(Obj), I);

  if (Symflags & object::SymbolRef::SF_Global)
    Ret = toupper(Ret);

  return Ret;
}

// getNsectInMachO() is used to implement the Mach-O "-s segname sectname"
// option to dump only those symbols from that section in a Mach-O file.
// It is called once for each symbol in a Mach-O file from
// dumpSymbolNamesFromObject() and returns the section number for that symbol
// if it is in a section, else it returns 0.
static unsigned getNsectInMachO(MachOObjectFile &Obj, basic_symbol_iterator I) {
  DataRefImpl Symb = I->getRawDataRefImpl();
  if (Obj.is64Bit()) {
    MachO::nlist_64 STE = Obj.getSymbol64TableEntry(Symb);
    if ((STE.n_type & MachO::N_TYPE) == MachO::N_SECT)
      return STE.n_sect;
    return 0;
  }
  MachO::nlist STE = Obj.getSymbolTableEntry(Symb);
  if ((STE.n_type & MachO::N_TYPE) == MachO::N_SECT)
    return STE.n_sect;
  return 0;
}