| /* Copyright (C) 1991-2014 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) |
