linux-kernel - Re: [PATCH] tools/bootconfig: Add tracing

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Message-Id: <20210114155034.1132dc7d1c80a3da6a26d554@kernel.org>
Date:   Thu, 14 Jan 2021 15:50:34 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tools/bootconfig: Add tracing_on support to helper
 scripts

On Wed, 13 Jan 2021 18:11:58 -0500
Steven Rostedt <rostedt@...dmis.org> wrote:

> 
> Just noticed this patch. I'm adding it into my queue for the next merge
> window, as it doesn't look too urgent.

Yes, it is not urgent, but it might be better to backport to 5.10.

Thank you,


> 
> -- Steve
> 
> 
> On Wed,  9 Dec 2020 14:27:44 +0900
> Masami Hiramatsu <mhiramat@...nel.org> wrote:
> 
> > Add ftrace.instance.INSTANCE.tracing_on support to ftrace2bconf.sh
> > and bconf2ftrace.sh.
> > 
> > commit 8490db06f914 ("tracing/boot: Add per-instance tracing_on
> > option support") added the per-instance tracing_on option,
> > but forgot to update the helper scripts.
> > 
> > Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
> > ---
> >  tools/bootconfig/scripts/bconf2ftrace.sh |    1 +
> >  tools/bootconfig/scripts/ftrace2bconf.sh |    4 ++++
> >  2 files changed, 5 insertions(+)
> > 
> > diff --git a/tools/bootconfig/scripts/bconf2ftrace.sh b/tools/bootconfig/scripts/bconf2ftrace.sh
> > index 595e164dc352..feb30c2c7881 100755
> > --- a/tools/bootconfig/scripts/bconf2ftrace.sh
> > +++ b/tools/bootconfig/scripts/bconf2ftrace.sh
> > @@ -152,6 +152,7 @@ setup_instance() { # [instance]
> >  	set_array_of ${instance}.options ${instancedir}/trace_options
> >  	set_value_of ${instance}.trace_clock ${instancedir}/trace_clock
> >  	set_value_of ${instance}.cpumask ${instancedir}/tracing_cpumask
> > +	set_value_of ${instance}.tracing_on ${instancedir}/tracing_on
> >  	set_value_of ${instance}.tracer ${instancedir}/current_tracer
> >  	set_array_of ${instance}.ftrace.filters \
> >  		${instancedir}/set_ftrace_filter
> > diff --git a/tools/bootconfig/scripts/ftrace2bconf.sh b/tools/bootconfig/scripts/ftrace2bconf.sh
> > index 6c0d4b61e0c2..a0c3bcc6da4f 100755
> > --- a/tools/bootconfig/scripts/ftrace2bconf.sh
> > +++ b/tools/bootconfig/scripts/ftrace2bconf.sh
> > @@ -221,6 +221,10 @@ instance_options() { # [instance-name]
> >  	if [ `echo $val | sed -e s/f//g`x != x ]; then
> >  		emit_kv $PREFIX.cpumask = $val
> >  	fi
> > +	val=`cat $INSTANCE/tracing_on`
> > +	if [ `echo $val | sed -e s/f//g`x != x ]; then
> > +		emit_kv $PREFIX.tracing_on = $val
> > +	fi
> >  
> >  	val=
> >  	for i in `cat $INSTANCE/set_event`; do
> 


-- 
Masami Hiramatsu <mhiramat@...nel.org>