Date: Wed, 4 Oct 2017 11:59:53 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r324269 - stable/11/usr.bin/ktrace Message-ID: <201710041159.v94Bxrf6012410@repo.freebsd.org>
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Author: trasz Date: Wed Oct 4 11:59:53 2017 New Revision: 324269 URL: https://svnweb.freebsd.org/changeset/base/324269 Log: MFC r321422: Improve the ktrace(1) man page to make it slightly more obvious that there are _two_ options that control its behaviour wrt child processes; slightly improve the example[1], and add Xrefs. Modified: stable/11/usr.bin/ktrace/ktrace.1 Directory Properties: stable/11/ (props changed) Modified: stable/11/usr.bin/ktrace/ktrace.1 ============================================================================== --- stable/11/usr.bin/ktrace/ktrace.1 Wed Oct 4 11:58:52 2017 (r324268) +++ stable/11/usr.bin/ktrace/ktrace.1 Wed Oct 4 11:59:53 2017 (r324269) @@ -85,6 +85,9 @@ Clear the specified trace points associated with the g .It Fl d Descendants; perform the operation for all current children of the designated processes. +See also the +.Fl i +option. .It Fl f Ar trfile Log trace records to .Ar trfile @@ -97,6 +100,9 @@ flag is permitted). .It Fl i Inherit; pass the trace flags to all future children of the designated processes. +See also the +.Fl d +option. .It Fl p Ar pid Enable (disable) tracing on the indicated process id (only one .Fl p @@ -148,6 +154,9 @@ and .Ar command options are mutually exclusive. .Sh EXAMPLES +Run "make", then trace it and any child processes: +.Dl $ ktrace -i make +.Pp Trace all kernel operations of process id 34: .Dl $ ktrace -p 34 .Pp @@ -166,16 +175,15 @@ Enable tracing of on process 67: .Dl $ ktrace -ti -p 67 .Pp -Run the command "w", tracing only system calls: -.Dl $ ktrace -tc w -.Pp Disable all tracing to the file "tracedata": .Dl $ ktrace -c -f tracedata .Pp Disable tracing of all user-owned processes: .Dl $ ktrace -C .Sh SEE ALSO +.Xr dtrace 1 , .Xr kdump 1 , +.Xr truss 1 , .Xr ktrace 2 .Sh HISTORY The
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