stdlib/FreeBSD/exit.c

   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 #pragma clang diagnostic push
  31 #pragma clang diagnostic ignored "-Wstrict-prototypes"
  32
  33 #if defined(LIBC_SCCS) && !defined(lint)
  34 static char sccsid[] = "@(#)exit.c      8.1 (Berkeley) 6/4/93";
  35 #endif /* LIBC_SCCS and not lint */
  36 #include <sys/cdefs.h>
  37 __FBSDID("$FreeBSD: src/lib/libc/stdlib/exit.c,v 1.9 2007/01/09 00:28:09 imp Exp $");
  38
  39 #include "namespace.h"
  40 #include <stdlib.h>
  41 #include <unistd.h>
  42 #include "un-namespace.h"
  43
  44 #include "atexit.h"
  45 #include "libc_private.h"
  46
  47 #include <TargetConditionals.h>
  48
  49 void (*__cleanup)(void);
  50 extern void __exit(int) __attribute__((noreturn));
  51 #if !TARGET_IPHONE_SIMULATOR && (__i386__ || __x86_64__)
  52 extern void _tlv_exit();
  53 #endif
  54
  55 /*
  56  * Exit, flushing stdio buffers if necessary.
  57  */
  58 void
  59 exit(int status)
  60 {
  61 #if !TARGET_IPHONE_SIMULATOR && (__i386__ || __x86_64__)
  62         _tlv_exit(); // C++11 requires thread_local objects to be destroyed before global objects
  63 #endif
  64         __cxa_finalize(NULL);
  65         if (__cleanup)
  66                 (*__cleanup)();
  67         __exit(status);
  68 }
  69 #pragma clang diagnostic pop