/* Copyright (C) 1991-2015 Free Software Foundation, Inc. This file is part of the GNU C Library. 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 <http://www.gnu.org/licenses/>. */ #include <stdlib.h> #include "exit.h" #include <atomic.h> #include <sysdep.h> /* Register a function to be called by exit. */ int __on_exit (void (*func) (int status, void *arg), void *arg) { struct exit_function *new = __new_exitfn (&__exit_funcs); if (new == NULL) return -1; #ifdef PTR_MANGLE PTR_MANGLE (func); #endif new->func.on.fn = func; new->func.on.arg = arg; atomic_write_barrier (); new->flavor = ef_on; return 0; } weak_alias (__on_exit, on_exit)