1: /* Copyright (C) 2001 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3: 
    4:    The GNU C Library is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Lesser General Public
    6:    License as published by the Free Software Foundation; either
    7:    version 2.1 of the License, or (at your option) any later version.
    8: 
    9:    The GNU C Library is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Lesser General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Lesser General Public
   15:    License along with the GNU C Library; if not, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.  */
   18: 
   19: #include <stdio.h>
   20: #include <stdlib.h>
   21: 
   22: int global;
   23: int *ip;
   24: 
   25: extern void dummy (void);
   26: extern void foo (void *p);
   27: 
   28: void
   29: dummy (void)
   30: {
   31:   printf ("This is %s\n", __FUNCTION__);
   32:   *ip = global = 1;
   33: }
   34: 
   35: 
   36: void
   37: foo (void *p)
   38: {
   39:   extern void *__dso_handle __attribute__ ((__weak__));
   40:   printf ("This is %s\n", __FUNCTION__);
   41:   atexit (dummy);
   42:   if (&__dso_handle) puts ("have dso handle"); else puts ("no dso handle");
   43:   ip = p;
   44: }