1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 2
3 clear_trace() { # reset trace output 3 clear_trace() { # reset trace output
4 echo > trace 4 echo > trace
5 } 5 }
6 6
7 disable_tracing() { # stop trace recording 7 disable_tracing() { # stop trace recording
8 echo 0 > tracing_on 8 echo 0 > tracing_on
9 } 9 }
10 10
11 enable_tracing() { # start trace recording 11 enable_tracing() { # start trace recording
12 echo 1 > tracing_on 12 echo 1 > tracing_on
13 } 13 }
14 14
15 reset_tracer() { # reset the current tracer 15 reset_tracer() { # reset the current tracer
16 echo nop > current_tracer 16 echo nop > current_tracer
17 } 17 }
18 18
19 reset_trigger_file() { 19 reset_trigger_file() {
20 # remove action triggers first 20 # remove action triggers first
21 grep -H ':on[^:]*(' $@ | 21 grep -H ':on[^:]*(' $@ |
22 while read line; do 22 while read line; do
23 cmd=`echo $line | cut -f2- -d: | cut - 23 cmd=`echo $line | cut -f2- -d: | cut -f1 -d"["`
24 file=`echo $line | cut -f1 -d:` 24 file=`echo $line | cut -f1 -d:`
25 echo "!$cmd" >> $file 25 echo "!$cmd" >> $file
26 done 26 done
27 grep -Hv ^# $@ | 27 grep -Hv ^# $@ |
28 while read line; do 28 while read line; do
29 cmd=`echo $line | cut -f2- -d: | cut - 29 cmd=`echo $line | cut -f2- -d: | cut -f1 -d"["`
30 file=`echo $line | cut -f1 -d:` 30 file=`echo $line | cut -f1 -d:`
31 echo "!$cmd" > $file 31 echo "!$cmd" > $file
32 done 32 done
33 } 33 }
34 34
35 reset_trigger() { # reset all current setting 35 reset_trigger() { # reset all current setting triggers
36 if [ -d events/synthetic ]; then 36 if [ -d events/synthetic ]; then
37 reset_trigger_file events/synthetic/*/ 37 reset_trigger_file events/synthetic/*/trigger
38 fi 38 fi
39 reset_trigger_file events/*/*/trigger 39 reset_trigger_file events/*/*/trigger
40 } 40 }
41 41
42 reset_events_filter() { # reset all current se 42 reset_events_filter() { # reset all current setting filters
43 grep -v ^none events/*/*/filter | 43 grep -v ^none events/*/*/filter |
44 while read line; do 44 while read line; do
45 echo 0 > `echo $line | cut -f1 -d:` 45 echo 0 > `echo $line | cut -f1 -d:`
46 done 46 done
47 } 47 }
48 48
49 reset_ftrace_filter() { # reset all triggers i 49 reset_ftrace_filter() { # reset all triggers in set_ftrace_filter
50 if [ ! -f set_ftrace_filter ]; then 50 if [ ! -f set_ftrace_filter ]; then
51 return 0 51 return 0
52 fi 52 fi
53 echo > set_ftrace_filter 53 echo > set_ftrace_filter
54 grep -v '^#' set_ftrace_filter | while rea 54 grep -v '^#' set_ftrace_filter | while read t; do
55 tr=`echo $t | cut -d: -f2` 55 tr=`echo $t | cut -d: -f2`
56 if [ "$tr" = "" ]; then 56 if [ "$tr" = "" ]; then
57 continue 57 continue
58 fi 58 fi
59 if ! grep -q "$t" set_ftrace_filter; t 59 if ! grep -q "$t" set_ftrace_filter; then
60 continue; 60 continue;
61 fi 61 fi
62 name=`echo $t | cut -d: -f1 | cut -d' 62 name=`echo $t | cut -d: -f1 | cut -d' ' -f1`
63 if [ $tr = "enable_event" -o $tr = "di 63 if [ $tr = "enable_event" -o $tr = "disable_event" ]; then
64 tr=`echo $t | cut -d: -f2-4` 64 tr=`echo $t | cut -d: -f2-4`
65 limit=`echo $t | cut -d: -f5` 65 limit=`echo $t | cut -d: -f5`
66 else 66 else
67 tr=`echo $t | cut -d: -f2` 67 tr=`echo $t | cut -d: -f2`
68 limit=`echo $t | cut -d: -f3` 68 limit=`echo $t | cut -d: -f3`
69 fi 69 fi
70 if [ "$limit" != "unlimited" ]; then 70 if [ "$limit" != "unlimited" ]; then
71 tr="$tr:$limit" 71 tr="$tr:$limit"
72 fi 72 fi
73 echo "!$name:$tr" > set_ftrace_filter 73 echo "!$name:$tr" > set_ftrace_filter
74 done 74 done
75 } 75 }
76 76
77 disable_events() { 77 disable_events() {
78 echo 0 > events/enable 78 echo 0 > events/enable
79 } 79 }
80 80
81 clear_synthetic_events() { # reset all current 81 clear_synthetic_events() { # reset all current synthetic events
82 grep -v ^# synthetic_events | 82 grep -v ^# synthetic_events |
83 while read line; do 83 while read line; do
84 echo "!$line" >> synthetic_events 84 echo "!$line" >> synthetic_events
85 done 85 done
86 } 86 }
87 87
88 initialize_ftrace() { # Reset ftrace to initia 88 initialize_ftrace() { # Reset ftrace to initial-state
89 # As the initial state, ftrace will be set to 89 # As the initial state, ftrace will be set to nop tracer,
90 # no events, no triggers, no filters, no funct 90 # no events, no triggers, no filters, no function filters,
91 # no probes, and tracing on. 91 # no probes, and tracing on.
92 disable_tracing 92 disable_tracing
93 reset_tracer 93 reset_tracer
94 reset_trigger 94 reset_trigger
95 reset_events_filter 95 reset_events_filter
96 reset_ftrace_filter 96 reset_ftrace_filter
97 disable_events 97 disable_events
98 [ -f set_event_pid ] && echo > set_event_p 98 [ -f set_event_pid ] && echo > set_event_pid
99 [ -f set_ftrace_pid ] && echo > set_ftrace 99 [ -f set_ftrace_pid ] && echo > set_ftrace_pid
100 [ -f set_ftrace_notrace ] && echo > set_ft 100 [ -f set_ftrace_notrace ] && echo > set_ftrace_notrace
101 [ -f set_graph_function ] && echo | tee se 101 [ -f set_graph_function ] && echo | tee set_graph_*
102 [ -f stack_trace_filter ] && echo > stack_ 102 [ -f stack_trace_filter ] && echo > stack_trace_filter
103 [ -f kprobe_events ] && echo > kprobe_even 103 [ -f kprobe_events ] && echo > kprobe_events
104 [ -f uprobe_events ] && echo > uprobe_even 104 [ -f uprobe_events ] && echo > uprobe_events
105 [ -f synthetic_events ] && echo > syntheti 105 [ -f synthetic_events ] && echo > synthetic_events
106 [ -f snapshot ] && echo 0 > snapshot 106 [ -f snapshot ] && echo 0 > snapshot
107 clear_trace 107 clear_trace
108 enable_tracing 108 enable_tracing
109 } 109 }
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