diff options
Diffstat (limited to 'libc/stdlib/exit.c')
-rw-r--r-- | libc/stdlib/exit.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/libc/stdlib/exit.c b/libc/stdlib/exit.c new file mode 100644 index 0000000..83fe3d2 --- /dev/null +++ b/libc/stdlib/exit.c @@ -0,0 +1,59 @@ +/* $OpenBSD: exit.c,v 1.12 2007/09/03 14:40:16 millert Exp $ */ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <sys/mman.h> +#include <stdlib.h> +#include <unistd.h> +#include "atexit.h" +#include "thread_private.h" + +/* + * This variable is zero until a process has created a thread. + * It is used to avoid calling locking functions in libc when they + * are not required. By default, libc is intended to be(come) + * thread-safe, but without a (significant) penalty to non-threaded + * processes. + */ +int __isthreaded = 0; + +/* + * Exit, flushing stdio buffers if necessary. + */ +void +exit(int status) +{ + /* + * Call functions registered by atexit() or _cxa_atexit() + * (including the stdio cleanup routine) and then _exit(). + */ + __cxa_finalize(NULL); + _exit(status); +} |