xref: /titanic_44/usr/src/lib/libc/common/sys/gethrtime.s (revision cd3e933325e68e23516a196a8fea7f49b1e497c3)
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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26	.file	"gethrtime.s"
27
28#include "SYS.h"
29
30/*
31 * hrtime_t gethrtime(void)
32 *
33 * Returns the current hi-res real time.
34 */
35
36	ENTRY(gethrtime)
37	SYSFASTTRAP(GETHRTIME)
38#if defined(__sparcv9)
39	/*
40	 * Note that the fast trap actually assumes V8 parameter passing
41	 * conventions, so we have to reassemble a 64-bit value here.
42	 */
43	sllx	%o0, 32, %o0
44	or	%o1, %o0, %o0
45#endif
46	RET
47	SET_SIZE(gethrtime)
48
49/*
50 * hrtime_t gethrvtime(void)
51 *
52 * Returns the current hi-res LWP virtual time.
53 */
54
55	ENTRY(gethrvtime)
56	SYSFASTTRAP(GETHRVTIME)
57#if defined(__sparcv9)
58	/*
59	 * Note that the fast trap actually assumes V8 parameter passing
60	 * conventions, so we have to reassemble a 64-bit value here.
61	 */
62	sllx	%o0, 32, %o0
63	or	%o1, %o0, %o0
64#endif
65	RET
66	SET_SIZE(gethrvtime)
67