exit.c revision 251069
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. 13251069Semaste * 3. Neither the name of the University nor the names of its contributors 141573Srgrimes * may be used to endorse or promote products derived from this software 151573Srgrimes * without specific prior written permission. 161573Srgrimes * 171573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271573Srgrimes * SUCH DAMAGE. 281573Srgrimes */ 291573Srgrimes 301573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 311573Srgrimesstatic char sccsid[] = "@(#)exit.c 8.1 (Berkeley) 6/4/93"; 321573Srgrimes#endif /* LIBC_SCCS and not lint */ 3392986Sobrien#include <sys/cdefs.h> 3492986Sobrien__FBSDID("$FreeBSD: head/lib/libc/stdlib/exit.c 251069 2013-05-28 20:57:40Z emaste $"); 351573Srgrimes 3671579Sdeischen#include "namespace.h" 371573Srgrimes#include <stdlib.h> 381573Srgrimes#include <unistd.h> 3971579Sdeischen#include "un-namespace.h" 40150040Sstefanf 411573Srgrimes#include "atexit.h" 42150040Sstefanf#include "libc_private.h" 431573Srgrimes 44150040Sstefanfvoid (*__cleanup)(void); 451573Srgrimes 461573Srgrimes/* 4735125Sjb * This variable is zero until a process has created a thread. 4835125Sjb * It is used to avoid calling locking functions in libc when they 4935125Sjb * are not required. By default, libc is intended to be(come) 5035125Sjb * thread-safe, but without a (significant) penalty to non-threaded 5135125Sjb * processes. 5235125Sjb */ 5335125Sjbint __isthreaded = 0; 5435125Sjb 5535125Sjb/* 561573Srgrimes * Exit, flushing stdio buffers if necessary. 571573Srgrimes */ 581573Srgrimesvoid 591573Srgrimesexit(status) 601573Srgrimes int status; 611573Srgrimes{ 6271579Sdeischen /* Ensure that the auto-initialization routine is linked in: */ 6335502Sjb extern int _thread_autoinit_dummy_decl; 6471579Sdeischen 6535502Sjb _thread_autoinit_dummy_decl = 1; 6635502Sjb 67123674Skan __cxa_finalize(NULL); 681573Srgrimes if (__cleanup) 691573Srgrimes (*__cleanup)(); 701573Srgrimes _exit(status); 711573Srgrimes} 72