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 1.5 2003/11/21 22:46:14 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/time.h> 44 #include <sys/ktrace.h> 45 46 #include <stdio.h> 47 48 #include "ktrace.h" 49 50 getpoints(char *s) 51 { 52 int facs = 0; 53 54 while (*s) { 55 switch(*s) { 56 case 'c': 57 facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET; 58 break; 59 case 'n': 60 facs |= KTRFAC_NAMEI; 61 break; 62 case 'i': 63 facs |= KTRFAC_GENIO; 64 break; 65 case 's': 66 facs |= KTRFAC_PSIG; 67 break; 68 case 'u': 69 facs |= KTRFAC_USER; 70 break; 71 case 'w': 72 facs |= KTRFAC_CSW; 73 break; 74 case '+': 75 facs |= DEF_POINTS; 76 break; 77 default: 78 return (-1); 79 } 80 s++; 81 } 82 return (facs); 83 } 84 85 timevaladd(struct timeval *t1, struct timeval *t2) 86 { 87 t1->tv_sec += t2->tv_sec; 88 t1->tv_usec += t2->tv_usec; 89 timevalfix(t1); 90 } 91 92 timevalsub(struct timeval *t1, struct timeval *t2) 93 { 94 t1->tv_sec -= t2->tv_sec; 95 t1->tv_usec -= t2->tv_usec; 96 timevalfix(t1); 97 } 98 99 timevalfix(struct timeval *t1) 100 { 101 if (t1->tv_usec < 0) { 102 t1->tv_sec--; 103 t1->tv_usec += 1000000; 104 } 105 if (t1->tv_usec >= 1000000) { 106 t1->tv_sec++; 107 t1->tv_usec -= 1000000; 108 } 109 } 110