1  /* Bug 11941: Improper assert map->l_init_called in dlclose.
       2     Copyright (C) 2016-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  /* This DSO simulates a plugin with a dependency on the
      20     primary DSO loaded by the application.  */
      21  #include <stdio.h>
      22  
      23  extern void primary_reference (void);
      24  
      25  void
      26  plugin_func (void)
      27  {
      28    printf ("INFO: Calling plugin function.\n");
      29    /* Need a reference to the DSO to ensure that a potential --as-needed
      30       doesn't remove the DT_NEEDED entry which we rely upon to ensure
      31       destruction ordering.  */
      32    primary_reference ();
      33  }
      34  
      35  __attribute__ ((destructor))
      36  static void
      37  plugin_dtor (void)
      38  {
      39    printf ("INFO: Calling plugin destructor.\n");
      40  }