gcc/libobjc/linking.m

/* Force linking of classes required by Objective C runtime.
   Copyright (C) 1997-2018 Free Software Foundation, Inc.
   Contributed by Ovidiu Predescu (ovidiu@net-community.com).

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.

GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
<http://www.gnu.org/licenses/>.  */

#include "objc-private/common.h"
#include <objc/Object.h>

/* Generate references to Object class since it is needed by the
   runtime system to run correctly.  */

void __objc_linking (void)
{
  [Object class];
}