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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event trigger - test snapshot-trigger
fail() { #msg
echo $1
exit_fail
}
if [ ! -f set_event -o ! -d events/sched ]; then
echo "event tracing is not supported"
exit_unsupported
fi
if [ ! -f events/sched/sched_process_fork/trigger ]; then
echo "event trigger is not supported"
exit_unsupported
fi
if [ ! -f snapshot ]; then
echo "snapshot is not supported"
exit_unsupported
fi
FEATURE=`grep snapshot events/sched/sched_process_fork/trigger`
if [ -z "$FEATURE" ]; then
echo "snapshot trigger is not supported"
exit_unsupported
fi
echo "Test snapshot trigger"
echo 0 > snapshot
echo 1 > events/sched/sched_process_fork/enable
( echo "forked")
echo 'snapshot:1' > events/sched/sched_process_fork/trigger
( echo "forked")
grep sched_process_fork snapshot > /dev/null || \
fail "snapshot trigger on sched_process_fork did not work"
reset_trigger
echo 0 > snapshot
echo 0 > events/sched/sched_process_fork/enable
echo "Test snapshot semantic errors"
! echo "snapshot+1" > events/sched/sched_process_fork/trigger
echo "snapshot" > events/sched/sched_process_fork/trigger
! echo "snapshot" > events/sched/sched_process_fork/trigger
exit 0
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