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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30 #include <sys/param.h>
31 #include <sys/types.h>
32 #include <sys/sysmacros.h>
33 #include <sys/systm.h>
34 #include <sys/errno.h>
35 #include <sys/proc.h>
36 #include <sys/time.h>
37 #include <sys/debug.h>
38 #include <sys/model.h>
39 #include <sys/msacct.h>
40
41 /*
42 * Get the time accounting information for the calling LWP.
43 */
44 int
lwp_info(timestruc_t * tvp)45 lwp_info(timestruc_t *tvp)
46 {
47 timestruc_t tv[2];
48 hrtime_t hrutime, hrstime;
49 klwp_t *lwp = ttolwp(curthread);
50
51 hrutime = lwp->lwp_mstate.ms_acct[LMS_USER];
52 hrstime = lwp->lwp_mstate.ms_acct[LMS_SYSTEM] +
53 lwp->lwp_mstate.ms_acct[LMS_TRAP];
54 scalehrtime(&hrutime);
55 scalehrtime(&hrstime);
56
57 hrt2ts(hrutime, &tv[0]);
58 hrt2ts(hrstime, &tv[1]);
59
60 if (get_udatamodel() == DATAMODEL_NATIVE) {
61 if (copyout(tv, tvp, sizeof (tv)))
62 return (set_errno(EFAULT));
63 } else {
64 timestruc32_t tv32[2];
65
66 if (TIMESPEC_OVERFLOW(&tv[0]) ||
67 TIMESPEC_OVERFLOW(&tv[1]))
68 return (set_errno(EOVERFLOW)); /* unlikely */
69
70 TIMESPEC_TO_TIMESPEC32(&tv32[0], &tv[0]);
71 TIMESPEC_TO_TIMESPEC32(&tv32[1], &tv[1]);
72
73 if (copyout(tv32, tvp, sizeof (tv32)))
74 return (set_errno(EFAULT));
75 }
76 return (0);
77 }
78