ld {
  GLIBC_2.2 {
    # ia64 specific functions in the dynamic linker, but used by libc.so.
    _dl_symbol_address; _dl_unmap; _dl_lookup_address;
    _dl_function_address;
  }
  GLIBC_2.2.3 {
    _dl_cpuclock_offset;
  }
}