diff options
Diffstat (limited to 'stdlib/exit.c')
| -rw-r--r-- | stdlib/exit.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/stdlib/exit.c b/stdlib/exit.c new file mode 100644 index 0000000000..4f33a25cc4 --- /dev/null +++ b/stdlib/exit.c @@ -0,0 +1,70 @@ +/* Copyright (C) 1991, 1995 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include "exit.h" + +#ifdef HAVE_GNU_LD +#include "set-hooks.h" +DEFINE_HOOK (__libc_atexit, (void)) +#endif + + +/* Call all functions registered with `atexit' and `on_exit', + in the reverse of the order in which they were registered + perform stdio cleanup, and terminate program execution with STATUS. */ +void +DEFUN(exit, (status), int status) +{ + register CONST struct exit_function_list *l; + + for (l = __exit_funcs; l != NULL; l = l->next) + { + register size_t i = l->idx; + while (i-- > 0) + { + CONST struct exit_function *CONST f = &l->fns[i]; + switch (f->flavor) + { + case ef_free: + break; + case ef_on: + (*f->func.on.fn)(status, f->func.on.arg); + break; + case ef_at: + (*f->func.at)(); + break; + } + } + } + +#ifdef HAVE_GNU_LD + RUN_HOOK (__libc_atexit, ()); +#else + { + extern void EXFUN(_cleanup, (NOARGS)); + _cleanup(); + } +#endif + + _exit(status); +} + |