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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD: src/lib/libc/stdlib/exit.c,v 1.3.6.1 2001/03/05 11:33:57 obrien Exp $ 34 * $DragonFly: src/lib/libc/stdlib/exit.c,v 1.8 2005/11/20 12:37:48 swildner Exp $ 35 * 36 * @(#)exit.c 8.1 (Berkeley) 6/4/93 37 */ 38 39 #include "namespace.h" 40 #include <stdlib.h> 41 #include <unistd.h> 42 #include "un-namespace.h" 43 #include "atexit.h" 44 45 void (*__cleanup)(); 46 47 /* 48 * This variable is zero until a process has created a thread. 49 * It is used to avoid calling locking functions in libc when they 50 * are not required. By default, libc is intended to be(come) 51 * thread-safe, but without a (significant) penalty to non-threaded 52 * processes. 53 */ 54 int __isthreaded = 0; 55 56 /* 57 * Exit, flushing stdio buffers if necessary. 58 */ 59 void 60 exit(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 69 if (__cleanup) 70 (*__cleanup)(); 71 _exit(status); 72 } 73 74 void 75 _Exit(int status) 76 { 77 _exit(status); 78 } 79