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1 | /*- | |
2 | * Copyright (c) 1990, 1993 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 4. Neither the name of the University nor the names of its contributors | |
14 | * may be used to endorse or promote products derived from this software | |
15 | * without specific prior written permission. | |
16 | * | |
17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
27 | * SUCH DAMAGE. | |
28 | */ | |
29 | ||
30 | #if defined(LIBC_SCCS) && !defined(lint) | |
31 | static char sccsid[] = "@(#)exit.c 8.1 (Berkeley) 6/4/93"; | |
32 | #endif /* LIBC_SCCS and not lint */ | |
33 | #include <sys/cdefs.h> | |
34 | __FBSDID("$FreeBSD: src/lib/libc/stdlib/exit.c,v 1.9 2007/01/09 00:28:09 imp Exp $"); | |
35 | ||
36 | #include "namespace.h" | |
37 | #include <stdlib.h> | |
38 | #include <unistd.h> | |
39 | #include "un-namespace.h" | |
40 | ||
41 | #include "atexit.h" | |
42 | #include "libc_private.h" | |
43 | ||
44 | void (*__cleanup)(void); | |
45 | ||
46 | /* | |
47 | * This variable is zero until a process has created a thread. | |
48 | * It is used to avoid calling locking functions in libc when they | |
49 | * are not required. By default, libc is intended to be(come) | |
50 | * thread-safe, but without a (significant) penalty to non-threaded | |
51 | * processes. | |
52 | */ | |
53 | int __isthreaded = 0; | |
54 | ||
55 | /* | |
56 | * Exit, flushing stdio buffers if necessary. | |
57 | */ | |
58 | void | |
59 | exit(status) | |
60 | int status; | |
61 | { | |
62 | /* Ensure that the auto-initialization routine is linked in: */ | |
63 | extern int _thread_autoinit_dummy_decl; | |
64 | ||
65 | _thread_autoinit_dummy_decl = 1; | |
66 | ||
67 | __cxa_finalize(NULL); | |
68 | if (__cleanup) | |
69 | (*__cleanup)(); | |
70 | _exit(status); | |
71 | } |