Re: [PATCH 0/5] tracing: Synthetic event dynamic string fixes
From: Tom Zanussi
Date: Mon Oct 12 2020 - 11:38:28 EST
Hi Steve,
On Mon, 2020-10-12 at 11:13 -0400, Steven Rostedt wrote:
> On Fri, 9 Oct 2020 10:17:06 -0500
> Tom Zanussi <zanussi@xxxxxxxxxx> wrote:
>
> > These patches provide fixes for the problems observed by Masami in
> > the
> > new synthetic event dynamic string patchset.
> >
> > The first patch (tracing: Don't show dynamic string internals in
> > synthetic event description) removes the __data_loc from the event
> > description but leaves it in the format.
> >
> > The patch (tracing: Add synthetic event error logging) addresses
> > the
> > lack of error messages when parse errors occur.
> >
> > The remaining three patches address the other problems Masami noted
> > which result from allowing illegal characters in synthetic event
> > and
> > field names when defining an event. The is_good_name() function is
> > used to check that's not possible for the probe events, but should
> > also be used for the synthetic events as well.
> >
> > (tracing: Move is_good_name() from trace_probe.h to trace.h) makes
> > that function available to other trace subsystems by putting it in
> > trace.h. (tracing: Check that the synthetic event and field names
> > are
> > legal) applies it to the synthetic events, and (selftests/ftrace:
> > Change synthetic event name for inter-event-combined test) changes
> > a
> > testcase that now fails because it uses an illegal name.
> >
>
>
> Hi Tom,
>
> Would you be able to address Masami's concerns on patches 1 and 4?
Yes, I'll submit a v2 fixing those soon (today).
Thanks,
Tom
>
> -- Steve