1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 # description: event tracing - enable/disable with top level files
4 # requires: available_events set_event events/enable
5
6 do_reset() {
7 echo > set_event
8 clear_trace
9 }
10
11 fail() { #msg
12 echo $1
13 exit_fail
14 }
15
16 echo '*:*' > set_event
17
18 yield
19
20 echo 0 > tracing_on
21
22 count=`head -n 128 trace | grep -v ^# | wc -l`
23 if [ $count -eq 0 ]; then
24 fail "none of events are recorded"
25 fi
26
27 do_reset
28
29 echo 1 > events/enable
30 echo 1 > tracing_on
31
32 yield
33
34 echo 0 > tracing_on
35 count=`head -n 128 trace | grep -v ^# | wc -l`
36 if [ $count -eq 0 ]; then
37 fail "none of events are recorded"
38 fi
39
40 do_reset
41
42 echo 0 > events/enable
43
44 yield
45
46 count=`cat trace | grep -v ^# | wc -l`
47 if [ $count -ne 0 ]; then
48 fail "any of events should not be recorded"
49 fi
50
51 exit 0
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