elf/tst-nodelete-dlclose-plugin.c

   1 /* Bug 11941: Improper assert map->l_init_called in dlclose.
   2    Copyright (C) 2016-2017 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    <http://www.gnu.org/licenses/>.  */
  18
  19 /* This DSO simulates a plugin with a dependency on the
  20    primary DSO loaded by the appliation.  */
  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 }