60e15db992
consists of the null-terminated name and the contents of any structure you wish to record. A new ktrstruct() function constructs and emits a KTR_STRUCT record. It is accompanied by convenience macros for struct stat and struct sockaddr. In kdump(1), KTR_STRUCT records are handled by a dispatcher function that runs stringent sanity checks on its contents before handing it over to individual decoding funtions for each type of structure. Currently supported structures are struct stat and struct sockaddr for the AF_INET, AF_INET6 and AF_UNIX families; support for AF_APPLETALK and AF_IPX is present but disabled, as I am unable to test it properly. Since 's' was already taken, the letter 't' is used by ktrace(1) to enable KTR_STRUCT trace points, and in kdump(1) to enable their decoding. Derived from patches by Andrew Li <andrew2.li@citi.com>. PR: kern/117836 MFC after: 3 weeks
125 lines
3.2 KiB
C
125 lines
3.2 KiB
C
/*-
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if 0
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#ifndef lint
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static char sccsid[] = "@(#)subr.c 8.1 (Berkeley) 6/6/93";
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/file.h>
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#include <sys/proc.h>
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#include <sys/time.h>
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#include <sys/uio.h>
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#include <sys/ktrace.h>
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#include <stdio.h>
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#include "ktrace.h"
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void timevaladd(struct timeval *, struct timeval *);
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void timevalsub(struct timeval *, struct timeval *);
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void timevalfix(struct timeval *);
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int
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getpoints(char *s)
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{
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int facs = 0;
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while (*s) {
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switch(*s) {
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case 'c':
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facs |= KTRFAC_SYSCALL | KTRFAC_SYSRET;
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break;
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case 'n':
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facs |= KTRFAC_NAMEI;
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break;
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case 'i':
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facs |= KTRFAC_GENIO;
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break;
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case 's':
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facs |= KTRFAC_PSIG;
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break;
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case 't':
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facs |= KTRFAC_STRUCT;
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break;
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case 'u':
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facs |= KTRFAC_USER;
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break;
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case 'w':
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facs |= KTRFAC_CSW;
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break;
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case '+':
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facs |= DEF_POINTS;
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break;
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default:
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return (-1);
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}
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s++;
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}
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return (facs);
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}
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void
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timevaladd(struct timeval *t1, struct timeval *t2)
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{
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t1->tv_sec += t2->tv_sec;
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t1->tv_usec += t2->tv_usec;
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timevalfix(t1);
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}
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void
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timevalsub(struct timeval *t1, struct timeval *t2)
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{
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t1->tv_sec -= t2->tv_sec;
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t1->tv_usec -= t2->tv_usec;
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timevalfix(t1);
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}
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void
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timevalfix(struct timeval *t1)
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{
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if (t1->tv_usec < 0) {
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t1->tv_sec--;
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t1->tv_usec += 1000000;
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}
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if (t1->tv_usec >= 1000000) {
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t1->tv_sec++;
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t1->tv_usec -= 1000000;
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}
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}
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