#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: Generic dynamic event - enable/disable tracepoint probe events
# requires: dynamic_events "t[:[<group>/][<event>]] <tracepoint> [<args>]":README

echo 0 > events/enable
echo > dynamic_events

TRACEPOINT=sched_switch
ENABLEFILE=events/tracepoints/myprobe/enable

:;: "Add tracepoint event on $TRACEPOINT" ;:

echo "t:myprobe ${TRACEPOINT}" >> dynamic_events

:;: "Check enable/disable to ensure it works" ;:

echo 1 > $ENABLEFILE

grep -q $TRACEPOINT trace

echo 0 > $ENABLEFILE

echo > trace

! grep -q $TRACEPOINT trace

:;: "Repeat enable/disable to ensure it works" ;:

echo 1 > $ENABLEFILE

grep -q $TRACEPOINT trace

echo 0 > $ENABLEFILE

echo > trace

! grep -q $TRACEPOINT trace

exit 0