1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# description: event trigger - test fully-qualified variable reference support 4# requires: set_event synthetic_events events/sched/sched_process_fork/hist ping:program 5 6fail() { #msg 7 echo $1 8 exit_fail 9} 10 11echo "Test fully-qualified variable reference support" 12 13echo 'wakeup_latency u64 lat; pid_t pid; int prio; char comm[16]' > synthetic_events 14echo 'hist:keys=comm:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger 15echo 'hist:keys=comm:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger 16echo 'hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-sched.sched_wakeup.$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 17echo 'hist:keys=pid,prio,comm:vals=lat:sort=pid,prio' > events/synthetic/wakeup_latency/trigger 18 19ping $LOCALHOST -c 3 20if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then 21 fail "Failed to create inter-event histogram" 22fi 23 24if ! grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then 25 fail "Failed to create histogram with fully-qualified variable reference" 26fi 27 28echo '!hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-sched.sched_wakeup.$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 29 30if grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then 31 fail "Failed to remove histogram with fully-qualified variable reference" 32fi 33 34exit 0 35