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

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Date:   Wed, 13 Jan 2021 18:11:58 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tools/bootconfig: Add tracing_on support to helper
 scripts


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

-- 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