Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 25 Dec 2009 23:04:25 -0500 | From | Masami Hiramatsu <> | Subject | Re: [PATCH] kprobetrace: documentation fix |
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KOSAKI Motohiro wrote: > > shell interpret $val is as shell variable. thus we need quote if > we use echo command.
Right. Thank you for fixing!
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
> --- > Documentation/trace/kprobetrace.txt | 4 ++-- > 1 files changed, 2 insertions(+), 2 deletions(-) > > diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt > index 47aabee..2be6e19 100644 > --- a/Documentation/trace/kprobetrace.txt > +++ b/Documentation/trace/kprobetrace.txt > @@ -82,13 +82,13 @@ Usage examples > To add a probe as a new event, write a new definition to kprobe_events > as below. > > - echo p:myprobe do_sys_open dfd=$arg0 filename=$arg1 flags=$arg2 mode=$arg3 > /sys/kernel/debug/tracing/kprobe_events > + echo 'p:myprobe do_sys_open dfd=$arg0 filename=$arg1 flags=$arg2 mode=$arg3' > /sys/kernel/debug/tracing/kprobe_events > > This sets a kprobe on the top of do_sys_open() function with recording > 1st to 4th arguments as "myprobe" event. As this example shows, users can > choose more familiar names for each arguments. > > - echo r:myretprobe do_sys_open $retval >> /sys/kernel/debug/tracing/kprobe_events > + echo 'r:myretprobe do_sys_open $retval' >> /sys/kernel/debug/tracing/kprobe_events > > This sets a kretprobe on the return point of do_sys_open() function with > recording return value as "myretprobe" event.
-- Masami Hiramatsu
Software Engineer Hitachi Computer Products (America), Inc. Software Solutions Division
e-mail: mhiramat@redhat.com
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