From: "Steven Rostedt (VMware)" <rost...@goodmis.org>
Add a test that tests a trigger that is initiated by a kernel event
(sched_waking) and compared to a write to the trace_marker.
Acked-by: Masami Hiramatsu <mhira...@kernel.org>
Reviewed-by: Namhyung Kim <namhy...@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rost...@goodmis.org>
---
.../trigger-trace-marker-synthetic-kernel.tc | 68 +++++++++++++++++++
1 file changed, 68 insertions(+)
create mode 100644
tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc
diff --git
a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc
b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc
new file mode 100644
index 000000000000..0a69c5d1cda8
--- /dev/null
+++
b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc
@@ -0,0 +1,68 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: trace_marker trigger - test histogram with synthetic event
against kernel event
+# flags:
+
+do_reset() {
+ reset_trigger
+ echo > set_event
+ echo > synthetic_events
+ clear_trace
+}
+
+fail() { #msg
+ do_reset
+ echo $1
+ exit_fail
+}
+
+if [ ! -f set_event ]; then
+ echo "event tracing is not supported"
+ exit_unsupported
+fi
+
+if [ ! -f synthetic_events ]; then
+ echo "synthetic events not supported"
+ exit_unsupported
+fi
+
+if [ ! -d events/ftrace/print ]; then
+ echo "event trace_marker is not supported"
+ exit_unsupported
+fi
+
+if [ ! -d events/sched/sched_waking ]; then
+ echo "event sched_waking is not supported"
+ exit_unsupported
+fi
+
+if [ ! -f events/ftrace/print/trigger ]; then
+ echo "event trigger is not supported"
+ exit_unsupported
+fi
+
+if [ ! -f events/ftrace/print/hist ]; then
+ echo "hist trigger is not supported"
+ exit_unsupported
+fi
+
+do_reset
+
+echo "Test histogram kernel event to trace_marker latency histogram trigger"
+
+echo 'latency u64 lat' > synthetic_events
+echo 'hist:keys=pid:ts0=common_timestamp.usecs' >
events/sched/sched_waking/trigger
+echo
'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).latency($lat)'
> events/ftrace/print/trigger
+echo 'hist:keys=common_pid,lat:sort=lat' > events/synthetic/latency/trigger
+sleep 1
+echo "hello" > trace_marker
+
+grep 'hitcount: *1$' events/ftrace/print/hist > /dev/null || \
+ fail "hist trigger did not trigger correct times on trace_marker"
+
+grep 'hitcount: *1$' events/synthetic/latency/hist > /dev/null || \
+ fail "hist trigger did not trigger "
+
+do_reset
+
+exit 0
--
2.17.0
