From ae7bf0ad64470eecdd8b1015ad643497531a78e2 Mon Sep 17 00:00:00 2001 From: jhb Date: Fri, 5 Sep 2014 17:22:20 +0000 Subject: [PATCH] MFC 270674: Clarify that the -c argument clears the list of tracepoints specified by -t (it does not clear all tracepoints). Approved by: re (gjb for 10) git-svn-id: svn://svn.freebsd.org/base/stable/8@271176 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f --- usr.bin/ktrace/ktrace.1 | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/usr.bin/ktrace/ktrace.1 b/usr.bin/ktrace/ktrace.1 index 755597322..26f6015bf 100644 --- a/usr.bin/ktrace/ktrace.1 +++ b/usr.bin/ktrace/ktrace.1 @@ -32,7 +32,7 @@ .\" @(#)ktrace.1 8.1 (Berkeley) 6/6/93 .\" $FreeBSD$ .\" -.Dd May 31, 2012 +.Dd August 26, 2014 .Dt KTRACE 1 .Os .Sh NAME @@ -85,7 +85,7 @@ 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. @@ -106,8 +106,10 @@ 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 -- 2.45.0