1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0
3# description: event trigger - test field variable support
4
5fail() { #msg
6    echo $1
7    exit_fail
8}
9
10if [ ! -f set_event ]; then
11    echo "event tracing is not supported"
12    exit_unsupported
13fi
14
15if [ ! -f synthetic_events ]; then
16    echo "synthetic event is not supported"
17    exit_unsupported
18fi
19
20echo "Test field variable support"
21
22echo 'wakeup_latency u64 lat; pid_t pid; int prio; char comm[16]' > synthetic_events
23echo 'hist:keys=comm:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
24echo 'hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$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
25echo 'hist:keys=pid,prio,comm:vals=lat:sort=pid,prio' > events/synthetic/wakeup_latency/trigger
26
27ping $LOCALHOST -c 3
28if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then
29    fail "Failed to create inter-event histogram"
30fi
31
32if ! grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then
33    fail "Failed to create histogram with field variable"
34fi
35
36echo '!hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$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
37
38if grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then
39    fail "Failed to remove histogram with field variable"
40fi
41
42exit 0
43