1 /* $OpenBSD: exit.c,v 1.12 2007/09/03 14:40:16 millert Exp $ */ 2 /*- 3 * Copyright (c) 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/types.h> 32 #include <sys/mman.h> 33 #include <stdlib.h> 34 #include <unistd.h> 35 36 /* 37 * This variable is zero until a process has created a thread. 38 * It is used to avoid calling locking functions in libc when they 39 * are not required. By default, libc is intended to be(come) 40 * thread-safe, but without a (significant) penalty to non-threaded 41 * processes. 42 */ 43 int __isthreaded = 0; 44 45 /* BEGIN android-added: using __cxa_finalize and __cxa_thread_finalize */ 46 extern void __cxa_finalize(void* dso_handle); 47 extern void __cxa_thread_finalize(); 48 /* END android-added */ 49 50 /* 51 * Exit, flushing stdio buffers if necessary. 52 */ 53 void 54 exit(int status) 55 { 56 /* BEGIN android-added: call thread_local d-tors */ 57 __cxa_thread_finalize(); 58 /* END android-added */ 59 60 /* 61 * Call functions registered by atexit() or _cxa_atexit() 62 * (including the stdio cleanup routine) and then _exit(). 63 */ 64 __cxa_finalize(NULL); 65 _exit(status); 66 } 67
