diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2003-02-19 19:30:14 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2003-02-19 19:30:14 +0000 |
| commit | 194ec2ac183e92677470f2f7e488b0327aac167d (patch) | |
| tree | 601b04065d8ab6f6439589d65cc4ef30a18f3af6 /usr.bin/ktrace | |
| parent | c0bce137d1afa7f549e4d17d27323fd8c81870cb (diff) | |
improve docs; raj@cerias.purdue.edu
Diffstat (limited to 'usr.bin/ktrace')
| -rw-r--r-- | usr.bin/ktrace/ktrace.1 | 15 | ||||
| -rw-r--r-- | usr.bin/ktrace/ktrace.c | 10 |
2 files changed, 17 insertions, 8 deletions
diff --git a/usr.bin/ktrace/ktrace.1 b/usr.bin/ktrace/ktrace.1 index ac0bd976df0..bc83ad156df 100644 --- a/usr.bin/ktrace/ktrace.1 +++ b/usr.bin/ktrace/ktrace.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ktrace.1,v 1.10 2000/11/09 17:52:15 aaron Exp $ +.\" $OpenBSD: ktrace.1,v 1.11 2003/02/19 19:30:13 deraadt Exp $ .\" .\" Copyright (c) 1990, 1993 .\" The Regents of the University of California. All rights reserved. @@ -107,6 +107,13 @@ Enable (disable) tracing on the indicated process ID (only one flag is permitted). .It Fl t Ar trstr The string argument represents the kernel trace points, one per letter. +The default flags are +.Cm c Ns , +.Cm e Ns , +.Cm i Ns , +.Cm n Ns , +and +.Cm s Ns . The following table equates the letters with the tracepoints: .Pp .Bl -tag -width flag -compact @@ -114,13 +121,15 @@ The following table equates the letters with the tracepoints: trace system calls .It Cm e trace emulation changes -.It Cm n -trace namei translations .It Cm i trace .Tn I/O +.It Cm n +trace namei translations .It Cm s trace signal processing +.It Cm w +trace context switch points .El .It Ar command Execute diff --git a/usr.bin/ktrace/ktrace.c b/usr.bin/ktrace/ktrace.c index 3c953357acc..5a2f3aa1c60 100644 --- a/usr.bin/ktrace/ktrace.c +++ b/usr.bin/ktrace/ktrace.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ktrace.c,v 1.14 2002/03/25 16:46:28 deraadt Exp $ */ +/* $OpenBSD: ktrace.c,v 1.15 2003/02/19 19:30:13 deraadt Exp $ */ /* $NetBSD: ktrace.c,v 1.4 1995/08/31 23:01:44 jtc Exp $ */ /*- @@ -44,7 +44,7 @@ static char copyright[] = #if 0 static char sccsid[] = "@(#)ktrace.c 8.2 (Berkeley) 4/28/95"; #endif -static char *rcsid = "$OpenBSD: ktrace.c,v 1.14 2002/03/25 16:46:28 deraadt Exp $"; +static char *rcsid = "$OpenBSD: ktrace.c,v 1.15 2003/02/19 19:30:13 deraadt Exp $"; #endif /* not lint */ #include <sys/param.h> @@ -126,7 +126,7 @@ main(argc, argv) argv += optind; argc -= optind; - if ((pidset && *argv) || (!pidset && !*argv)) + if ((pidset && *argv) || (!pidset && !*argv && clear != CLEAR)) usage(); if (inherit) @@ -195,7 +195,7 @@ static void usage() { (void)fprintf(stderr, -"usage:\tktrace [-aCcid] [-f trfile] [-g pgid] [-p pid] [-t [cenis]\n\tktrace [-aCcid] [-f trfile] [-t [cenis] command\n"); +"usage:\tktrace [-aCcdi] [-f trfile] [-g pgid] [-p pid] [-t [ceinsw]]\n\tktrace [-adi] [-f trfile] [-t [ceinsw]] command\n"); exit(1); } @@ -206,7 +206,7 @@ no_ktrace(sig) char buf[8192]; snprintf(buf, sizeof(buf), -"error:\tktrace() system call not supported in the running kernel\n\tre-compile kernel with 'options KTRACE'\n"); +"error:\tktrace() system call not supported in the running kernel\n\tre-compile kernel with 'option KTRACE'\n"); write(STDERR_FILENO, buf, strlen(buf)); _exit(1); } |