membar_ops_nop.c revision 1.1.2.2 
1/*	$NetBSD: membar_ops_nop.c,v 1.1.2.2 2007/04/22 05:12:49 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 2007 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the NetBSD
21 *	Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#include "atomic_op_namespace.h"
40
41#include <sys/atomic.h>
42
43void
44membar_sync(void)
45{
46
47	/* nothing */
48}
49
50#undef membar_enter
51atomic_op_alias(membar_enter,_membar_sync)
52__strong_alias(_membar_enter,_membar_sync)
53#undef membar_exit
54atomic_op_alias(membar_exit,_membar_sync)
55__strong_alias(_membar_exit,_membar_sync)
56#undef membar_producer
57atomic_op_alias(membar_producer,_membar_sync)
58__strong_alias(_membar_producer,_membar_sync)
59#undef membar_consumer
60atomic_op_alias(membar_consumer,_membar_sync)
61__strong_alias(_membar_consumer,_membar_sync)
62#undef membar_sync
63atomic_op_alias(membar_sync,_membar_sync)
64__strong_alias(_membar_sync,_membar_sync)
65#undef membar_write
66atomic_op_alias(membar_write,_membar_sync)
67__strong_alias(_membar_write,_membar_sync)
68#undef membar_read
69atomic_op_alias(membar_read,_membar_sync)
70__strong_alias(_membar_read,_membar_sync)
71