Checking patch elf/dl-lookup.c...
error: while searching for:
      return 0;
    }

  int protected = (*ref
		   && ELFW(ST_VISIBILITY) ((*ref)->st_other) == STV_PROTECTED);
  if (__glibc_unlikely (protected != 0))
    {
      /* It is very tricky.  We need to figure out what value to
	 return for the protected symbol.  */
      if (type_class == ELF_RTYPE_CLASS_PLT)
	{
	  if (current_value.s != NULL && current_value.m != undef_map)
	    {
	      current_value.s = *ref;
	      current_value.m = undef_map;
	    }
	}
      else
	{
	  struct sym_val protected_value = { NULL, NULL };

	  for (scope = symbol_scope; *scope != NULL; i = 0, ++scope)
	    if (do_lookup_x (undef_name, new_hash, &old_hash, *ref,
			     &protected_value, *scope, i, version, flags,
			     skip_map,
			     (ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA
			      && ELFW(ST_TYPE) ((*ref)->st_info) == STT_OBJECT
			      && type_class == ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA)
			     ? ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA
			     : ELF_RTYPE_CLASS_PLT, NULL) != 0)
	      break;

	  if (protected_value.s != NULL && protected_value.m != undef_map)
	    {
	      current_value.s = *ref;
	      current_value.m = undef_map;
	    }
	}
    }


error: patch failed: elf/dl-lookup.c:863
error: elf/dl-lookup.c: patch does not apply