exit.c revision 150040
11573Srgrimes/*- 21573Srgrimes * Copyright (c) 1990, 1993 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * Redistribution and use in source and binary forms, with or without 61573Srgrimes * modification, are permitted provided that the following conditions 71573Srgrimes * are met: 81573Srgrimes * 1. Redistributions of source code must retain the above copyright 91573Srgrimes * notice, this list of conditions and the following disclaimer. 101573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111573Srgrimes * notice, this list of conditions and the following disclaimer in the 121573Srgrimes * documentation and/or other materials provided with the distribution. 131573Srgrimes * 3. All advertising materials mentioning features or use of this software 141573Srgrimes * must display the following acknowledgement: 151573Srgrimes * This product includes software developed by the University of 161573Srgrimes * California, Berkeley and its contributors. 171573Srgrimes * 4. Neither the name of the University nor the names of its contributors 181573Srgrimes * may be used to endorse or promote products derived from this software 191573Srgrimes * without specific prior written permission. 201573Srgrimes * 211573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311573Srgrimes * SUCH DAMAGE. 321573Srgrimes */ 331573Srgrimes 341573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 351573Srgrimesstatic char sccsid[] = "@(#)exit.c 8.1 (Berkeley) 6/4/93"; 361573Srgrimes#endif /* LIBC_SCCS and not lint */ 3792986Sobrien#include <sys/cdefs.h> 3892986Sobrien__FBSDID("$FreeBSD: head/lib/libc/stdlib/exit.c 150040 2005-09-12 13:46:32Z stefanf $"); 391573Srgrimes 4071579Sdeischen#include "namespace.h" 411573Srgrimes#include <stdlib.h> 421573Srgrimes#include <unistd.h> 4371579Sdeischen#include "un-namespace.h" 44150040Sstefanf 451573Srgrimes#include "atexit.h" 46150040Sstefanf#include "libc_private.h" 471573Srgrimes 48150040Sstefanfvoid (*__cleanup)(void); 491573Srgrimes 501573Srgrimes/* 5135125Sjb * This variable is zero until a process has created a thread. 5235125Sjb * It is used to avoid calling locking functions in libc when they 5335125Sjb * are not required. By default, libc is intended to be(come) 5435125Sjb * thread-safe, but without a (significant) penalty to non-threaded 5535125Sjb * processes. 5635125Sjb */ 5735125Sjbint __isthreaded = 0; 5835125Sjb 5935125Sjb/* 601573Srgrimes * Exit, flushing stdio buffers if necessary. 611573Srgrimes */ 621573Srgrimesvoid 631573Srgrimesexit(status) 641573Srgrimes int status; 651573Srgrimes{ 6671579Sdeischen /* Ensure that the auto-initialization routine is linked in: */ 6735502Sjb extern int _thread_autoinit_dummy_decl; 6871579Sdeischen 6935502Sjb _thread_autoinit_dummy_decl = 1; 7035502Sjb 71123674Skan __cxa_finalize(NULL); 721573Srgrimes if (__cleanup) 731573Srgrimes (*__cleanup)(); 741573Srgrimes _exit(status); 751573Srgrimes} 76