dlfcn/modcxaatexit.c

   1 /* Copyright (C) 2001-2016 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, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20
  21 extern void fluffy (void *p);
  22 extern void bar (void *p);
  23
  24 int global;
  25
  26 void
  27 fluffy (void *p)
  28 {
  29   printf ("This is %s\n", __FUNCTION__);
  30   *(int *) p = global = 1;
  31 }
  32
  33
  34 void
  35 bar (void *p)
  36 {
  37   extern void *__dso_handle;
  38   printf ("This is %s\n", __FUNCTION__);
  39   __cxa_atexit (fluffy, p, __dso_handle);
  40 }