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Clarify that the -c argument clears the list of tracepoints specified by

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-t (it does not clear all tracepoints).

Submitted by:	jmg, Eric van Gyzen <eric@vangyzen.net>
MFC after:	1 week
This commit is contained in:
John Baldwin 2014-08-26 21:21:57 +00:00
parent 76031b19ef
commit 0b976534de
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=270674
1 changed files with 6 additions and 4 deletions
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10
usr.bin/ktrace/ktrace.1
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@ -28,7 +28,7 @@
.\" @(#)ktrace.1 8.1 (Berkeley) 6/6/93
.\" $FreeBSD$
.\"
.Dd May 31, 2012
.Dd August 26, 2014
.Dt KTRACE 1
.Os
.Sh NAME
@ -81,7 +81,7 @@ Append to the trace file instead of recreating it.
Disable tracing on all user-owned processes, and, if executed by root, all
processes in the system.
.It Fl c
Clear the trace points associated with the specified file or processes.
Clear the specified trace points associated with the given file or processes.
.It Fl d
Descendants; perform the operation for all current children of the
designated processes.
@ -102,8 +102,10 @@ Enable (disable) tracing on the indicated process id (only one
.Fl p
flag is permitted).
.It Fl t Ar trstr
The string argument represents the kernel trace points, one per letter.
The following table equates the letters with the tracepoints:
Specify the list of trace points to enable or disable, one per letter.
If an explicit list is not specified, the default set of trace points is used.
.Pp
The following trace points are supported:
.Pp
.Bl -tag -width flag -compact
.It Cm c