[PATCH v4 09/10] tools/bootconfig: Use per-group/all enable option in ftrace2bconf script

Masami Hiramatsu
2021-08-10T02:08:22Z

Use per-group/all enable option instead of ftrace.events option.
This will make the bootconfig file more readable.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
tools/bootconfig/scripts/ftrace2bconf.sh | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/tools/bootconfig/scripts/ftrace2bconf.sh b/tools/bootconfig/scripts/ftrace2bconf.sh
index a0c3bcc6da4f..fbaf07dc91bf 100755
--- a/tools/bootconfig/scripts/ftrace2bconf.sh
+++ b/tools/bootconfig/scripts/ftrace2bconf.sh
@@ -92,6 +92,10 @@ referred_vars() {
grep "^hist" $1/trigger | grep -o '$[a-zA-Z0-9]*'
}

+event_is_enabled() { # enable-file
+ test -f $1 & grep -q "1" $1
+}
+
per_event_options() { # event-dir
evdir=$1
# Check the special event which has no filter and no trigger
@@ -113,7 +117,9 @@ per_event_options() { # event-dir
emit_kv $PREFIX.event.$group.$event.actions += \'$action\'
done

- # enable is not checked; this is done by set_event in the instance.
+ if [ $GROUP_ENABLED -eq 0 ] && event_is_enabled $evdir/enable; then
+ emit_kv $PREFIX.event.$group.$event.enable
+ fi
val=`cat $evdir/filter`
if [ "$val" != "none" ]; then
emit_kv $PREFIX.event.$group.$event.filter = "$val"
@@ -137,8 +143,19 @@ event_options() {
kprobe_event_options
synth_event_options
fi
+ ALL_ENABLED=0
+ if event_is_enabled $INSTANCE/events/enable; then
+ emit_kv $PREFIX.event.enable
+ ALL_ENABLED=1
+ fi
for group in `ls $INSTANCE/events/` ; do
[ ! -d $INSTANCE/events/$group ] && continue
+ GROUP_ENABLED=$ALL_ENABLED
+ if [ $ALL_ENABLED -eq 0 ] && \
+ event_is_enabled $INSTANCE/events/$group/enable ;then
+ emit_kv $PREFIX.event.$group.enable
+ GROUP_ENABLED=1
+ fi
for event in `ls $INSTANCE/events/$group/` ;do
[ ! -d $INSTANCE/events/$group/$event ] && continue
per_event_options $INSTANCE/events/$group/$event
@@ -226,11 +243,6 @@ instance_options() { # [instance-name]
emit_kv $PREFIX.tracing_on = $val
fi

- val=
- for i in `cat $INSTANCE/set_event`; do
- val="$val, $i"
- done
- [ "$val" ] && emit_kv $PREFIX.events = "${val#,}"
val=`cat $INSTANCE/current_tracer`
[ $val != nop ] && emit_kv $PREFIX.tracer = $val
if grep -qv "^#" $INSTANCE/set_ftrace_filter $INSTANCE/set_ftrace_notrace; then