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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event trigger - test field variable support
fail() { #msg
echo $1
exit_fail
}
if [ ! -f set_event ]; then
echo "event tracing is not supported"
exit_unsupported
fi
if [ ! -f synthetic_events ]; then
echo "synthetic event is not supported"
exit_unsupported
fi
echo "Test field variable support"
echo 'wakeup_latency u64 lat; pid_t pid; int prio; char comm[16]' > synthetic_events
echo 'hist:keys=comm:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
echo 'hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).wakeup_latency($wakeup_lat,next_pid,sched.sched_waking.prio,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger
echo 'hist:keys=pid,prio,comm:vals=lat:sort=pid,prio' > events/synthetic/wakeup_latency/trigger
ping $LOCALHOST -c 3
if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then
fail "Failed to create inter-event histogram"
fi
if ! grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then
fail "Failed to create histogram with field variable"
fi
echo '!hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).wakeup_latency($wakeup_lat,next_pid,sched.sched_waking.prio,next_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger
if grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then
fail "Failed to remove histogram with field variable"
fi
exit 0
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