/* Copyright (C) 2003-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , 2003. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include #include #include extern int val; static void prepare (void) { ++val; } static void parent (void) { val *= 4; } static void child (void) { val *= 8; } static void __attribute__ ((constructor)) init (void) { extern void *__dso_handle; printf ("dsohandle = %p\n", __dso_handle); if (pthread_atfork (prepare, parent, child) != 0) { puts ("init: atfork failed"); exit (1); } }