From 82581195191af6fba11af6397b7ec55bb992cfc7 Mon Sep 17 00:00:00 2001 From: John Birrell Date: Mon, 9 Mar 1998 07:09:55 +0000 Subject: Function to return a pointer to the non-threaded errno. This is declared with a weak symbol so that it won't be linked when linking against libc_r or libpthread. --- lib/libc/sys/__error.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 lib/libc/sys/__error.c (limited to 'lib') diff --git a/lib/libc/sys/__error.c b/lib/libc/sys/__error.c new file mode 100644 index 000000000000..9b0c25f2fae3 --- /dev/null +++ b/lib/libc/sys/__error.c @@ -0,0 +1,47 @@ +/* + * Copyright (c) 1997 John Birrell . + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by John Birrell. + * 4. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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 + +extern int errno; + +/* + * Declare a weak reference in case the application is not linked + * with libpthread. + */ +#pragma weak __error=__error_unthreaded + +int * __error_unthreaded() +{ + return(&errno); +} -- cgit v1.3