2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 static char sccsid[] = "@(#)subr.c 8.1 (Berkeley) 6/6/93";
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
39 #include <sys/param.h>
44 #include <sys/ktrace.h>
50 void timevaladd(struct timeval *, struct timeval *);
51 void timevalsub(struct timeval *, struct timeval *);
52 void timevalfix(struct timeval *);
62 facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
68 facs |= KTRFAC_FAULT | KTRFAC_FAULTEND;
74 facs |= KTRFAC_CAPFAIL;
80 facs |= KTRFAC_STRUCT;
89 facs |= KTRFAC_SYSCTL;
103 timevaladd(struct timeval *t1, struct timeval *t2)
105 t1->tv_sec += t2->tv_sec;
106 t1->tv_usec += t2->tv_usec;
111 timevalsub(struct timeval *t1, struct timeval *t2)
113 t1->tv_sec -= t2->tv_sec;
114 t1->tv_usec -= t2->tv_usec;
119 timevalfix(struct timeval *t1)
121 if (t1->tv_usec < 0) {
123 t1->tv_usec += 1000000;
125 if (t1->tv_usec >= 1000000) {
127 t1->tv_usec -= 1000000;