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tracing/selftests: Update synthetic event selftest to use common_stacktrace

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With the rename of the stacktrace field to common_stacktrace, update the
selftests to reflect this change. Copy the current selftest to test the
backward compatibility "stacktrace" keyword. Also the "requires" of that
test was incorrect, so it would never actually ran before. That is fixed
now.

Link: https://lore.kernel.org/linux-trace-kernel/20230523225402.55951f2f@rorschach.local.home

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Google) 2023-05-23 22:54:29 -04:00
parent 4b512860bd
commit f1aab36343
2 changed files with 26 additions and 3 deletions
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24
tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-stack-legacy.tc Normal file
View File

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

5
tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-stack.tc
View File

@ -1,7 +1,7 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event trigger - test inter-event histogram trigger trace action with dynamic string param
# requires: set_event synthetic_events events/sched/sched_process_exec/hist "long[]' >> synthetic_events":README
# requires: set_event synthetic_events events/sched/sched_process_exec/hist "can be any field, or the special string 'common_stacktrace'":README
fail() { #msg
echo $1
@ -10,9 +10,8 @@ fail() { #msg
echo "Test create synthetic event with stack"
echo 's:wake_lat pid_t pid; u64 delta; unsigned long[] stack;' > dynamic_events
echo 'hist:keys=next_pid:ts=common_timestamp.usecs,st=stacktrace if prev_state == 1||prev_state == 2' >> events/sched/sched_switch/trigger
echo 'hist:keys=next_pid:ts=common_timestamp.usecs,st=common_stacktrace if prev_state == 1||prev_state == 2' >> events/sched/sched_switch/trigger
echo 'hist:keys=prev_pid:delta=common_timestamp.usecs-$ts,s=$st:onmax($delta).trace(wake_lat,prev_pid,$delta,$s)' >> events/sched/sched_switch/trigger
echo 1 > events/synthetic/wake_lat/enable
sleep 1