xref: /titanic_41/usr/src/lib/libc/common/sys/gethrtime.s (revision 2eeaed14a5e2ed9bd811643ad5bffc3510ca0310)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma	ident	"%Z%%M%	%I%	%E% SMI"
28
29	.file	"%M%"
30
31#include "SYS.h"
32
33/*
34 * hrtime_t gethrtime(void)
35 *
36 * Returns the current hi-res real time.
37 */
38
39	ENTRY(gethrtime)
40	SYSFASTTRAP(GETHRTIME)
41#if defined(__sparcv9)
42	/*
43	 * Note that the fast trap actually assumes V8 parameter passing
44	 * conventions, so we have to reassemble a 64-bit value here.
45	 */
46	sllx	%o0, 32, %o0
47	or	%o1, %o0, %o0
48#endif
49	RET
50	SET_SIZE(gethrtime)
51
52/*
53 * hrtime_t gethrvtime(void)
54 *
55 * Returns the current hi-res LWP virtual time.
56 */
57
58	ENTRY(gethrvtime)
59	SYSFASTTRAP(GETHRVTIME)
60#if defined(__sparcv9)
61	/*
62	 * Note that the fast trap actually assumes V8 parameter passing
63	 * conventions, so we have to reassemble a 64-bit value here.
64	 */
65	sllx	%o0, 32, %o0
66	or	%o1, %o0, %o0
67#endif
68	RET
69	SET_SIZE(gethrvtime)
70