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#!/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
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