1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 # description: event trigger - test inter-event histogram trigger trace action with dynamic string param (legacy stack)
4 # requires: set_event synthetic_events events/sched/sched_process_exec/hist "long[] stack' >> synthetic_events":README
5
6 fail() { #msg
7 echo $1
8 exit_fail
9 }
10
11 echo "Test create synthetic event with stack"
12
13 # Test the old stacktrace keyword (for backward compatibility)
14 echo 's:wake_lat pid_t pid; u64 delta; unsigned long[] stack;' > dynamic_events
15 echo 'hist:keys=next_pid:ts=common_timestamp.usecs,st=stacktrace if prev_state == 1||prev_state == 2' >> events/sched/sched_switch/trigger
16 echo 'hist:keys=prev_pid:delta=common_timestamp.usecs-$ts,s=$st:onmax($delta).trace(wake_lat,prev_pid,$delta,$s)' >> events/sched/sched_switch/trigger
17 echo 1 > events/synthetic/wake_lat/enable
18 sleep 1
19
20 if ! grep -q "=>.*sched" trace; then
21 fail "Failed to create synthetic event with stack"
22 fi
23
24 exit 0
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