2 # SPDX-License-Identifier: GPL-2.0
3 # description: ftrace - function glob filters
5 # Make sure that function glob matching filter works.
7 if ! grep -q function available_tracers
; then
8 echo "no function tracer configured"
15 ftrace_filter_check
() { # glob grep
16 echo "$1" > set_ftrace_filter
17 cut
-f1 -d" " set_ftrace_filter
> $TMPDIR/actual
18 cut
-f1 -d" " available_filter_functions |
grep "$2" > $TMPDIR/expected
19 DIFF
=`diff $TMPDIR/actual $TMPDIR/expected`
23 # filter by *, front match
24 ftrace_filter_check
'*schedule' '^.*schedule$'
26 # filter by *, middle match
27 ftrace_filter_check
'*schedule*' '^.*schedule.*$'
29 # filter by *, end match
30 ftrace_filter_check
'schedule*' '^schedule.*$'
32 # Advanced full-glob matching feature is recently supported.
33 # Skip the tests if we are sure the kernel does not support it.
34 if grep -q 'accepts: .* glob-matching-pattern' README
; then
36 # filter by *, both side match
37 ftrace_filter_check
'sch*ule' '^sch.*ule$'
39 # filter by char class.
40 ftrace_filter_check
'[Ss]y[Ss]_*' '^[Ss]y[Ss]_.*$'
42 # filter by ?, schedule is always good
43 if ! echo "sch?dule" > set_ftrace_filter
; then
45 if ! echo ".sch?dule" > set_ftrace_filter
; then
46 fail
"can not enable schedule filter"
48 cat set_ftrace_filter |
grep '^.schedule$'
50 cat set_ftrace_filter |
grep '^schedule$'
55 echo > set_ftrace_filter