1 /*- 2 * Copyright (c) 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)subr.c 8.1 (Berkeley) 6/6/93 34 * $FreeBSD: src/usr.bin/ktrace/subr.c,v 1.6 1999/08/28 01:02:34 peter Exp $ 35 * $DragonFly: src/usr.bin/ktrace/subr.c,v 1.3 2003/08/27 03:21:50 dillon Exp $ 36 */ 37 38 #define _KERNEL_STRUCTURES 39 40 #include <sys/param.h> 41 #include <sys/file.h> 42 #include <sys/user.h> 43 #include <sys/proc.h> 44 #include <sys/time.h> 45 #include <sys/ktrace.h> 46 47 #include <stdio.h> 48 49 #include "ktrace.h" 50 51 getpoints(s) 52 char *s; 53 { 54 int facs = 0; 55 56 while (*s) { 57 switch(*s) { 58 case 'c': 59 facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET; 60 break; 61 case 'n': 62 facs |= KTRFAC_NAMEI; 63 break; 64 case 'i': 65 facs |= KTRFAC_GENIO; 66 break; 67 case 's': 68 facs |= KTRFAC_PSIG; 69 break; 70 case 'u': 71 facs |= KTRFAC_USER; 72 break; 73 case 'w': 74 facs |= KTRFAC_CSW; 75 break; 76 case '+': 77 facs |= DEF_POINTS; 78 break; 79 default: 80 return (-1); 81 } 82 s++; 83 } 84 return (facs); 85 } 86 87 timevaladd(t1, t2) 88 struct timeval *t1, *t2; 89 { 90 t1->tv_sec += t2->tv_sec; 91 t1->tv_usec += t2->tv_usec; 92 timevalfix(t1); 93 } 94 95 timevalsub(t1, t2) 96 struct timeval *t1, *t2; 97 { 98 t1->tv_sec -= t2->tv_sec; 99 t1->tv_usec -= t2->tv_usec; 100 timevalfix(t1); 101 } 102 103 timevalfix(t1) 104 struct timeval *t1; 105 { 106 if (t1->tv_usec < 0) { 107 t1->tv_sec--; 108 t1->tv_usec += 1000000; 109 } 110 if (t1->tv_usec >= 1000000) { 111 t1->tv_sec++; 112 t1->tv_usec -= 1000000; 113 } 114 } 115