debug lk

hc

2024-02-20 e636c8d336489bf3eed5878299e6cc045bbad077

 kernel/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
..
..
@@ -3,18 +3,14 @@
3
3
 # description: ftrace - test for function event triggers
4
4
 # flags: instance
5
5
 #
6
+# The triggers are set within the set_ftrace_filter file
7
+# requires: set_ftrace_filter
8
+#
6
9
 # Ftrace allows to add triggers to functions, such as enabling or disabling
7
10
 # tracing, enabling or disabling trace events, or recording a stack trace
8
11
 # within the ring buffer.
9
12
 #
10
13
 # This test is designed to test event triggers
11
-#
12
-
13
-# The triggers are set within the set_ftrace_filter file
14
-if [ ! -f set_ftrace_filter ]; then
15
-    echo "set_ftrace_filter not found? Is dynamic ftrace not set?"
16
-    exit_unsupported
17
-fi
18
14
 
19
15
 do_reset() {
20
16
     reset_ftrace_filter
..
..
@@ -25,14 +21,11 @@
25
21
 }
26
22
 
27
23
 fail() { # mesg
28
-    do_reset
29
24
     echo $1
30
25
     exit_fail
31
26
 }
32
27
 
33
28
 SLEEP_TIME=".1"
34
-
35
-do_reset
36
29
 
37
30
 echo "Testing function probes with events:"
38
31
 
..
..
@@ -45,11 +38,18 @@
45
38
 
46
39
 test_event_enabled() {
47
40
     val=$1
41
+    check_times=10		# wait for 10 * SLEEP_TIME at most
48
42
 
49
-    e=`cat $EVENT_ENABLE`
50
-    if [ "$e" != $val ]; then
51
-	fail "Expected $val but found $e"
52
-    fi
43
+    while [ $check_times -ne 0 ]; do
44
+	e=`cat $EVENT_ENABLE`
45
+	if [ "$e" = $val ]; then
46
+	    return 0
47
+	fi
48
+	sleep $SLEEP_TIME
49
+	check_times=$((check_times - 1))
50
+    done
51
+
52
+    fail "Expected $val but found $e"
53
53
 }
54
54
 
55
55
 run_enable_disable() {