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author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-04-17 17:30:08 -0400 |
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committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-04-18 13:48:25 -0400 |
commit | 8e5e19c1b98394c2cdc186a4b0be422fe6e7217a (patch) | |
tree | 4b90d89dd7cba4e8d1d1ff136a73a67c2ec76da5 /tools/testing/selftests/ftrace | |
parent | 560642d9ab5c37451ee43989dd9a35037ab5ab8d (diff) | |
download | linux-8e5e19c1b98394c2cdc186a4b0be422fe6e7217a.tar.bz2 |
selftests: ftrace: Add a way to reset triggers in the set_ftrace_filter file
Just writing into the set_ftrace_filter file does not reset triggers, even
though it can reset the function list. Triggers require writing the trigger
name with a "!" prepended. It's worse that it requires the number if the
trigger has a count associated to it.
Add a reset_ftrace_filter function to the ftrace self tests to allow for the
tests to have a generic way to clear them. It also resets any functions that
are listed in that file as well.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools/testing/selftests/ftrace')
-rw-r--r-- | tools/testing/selftests/ftrace/test.d/functions | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions index 91de1a8e4f19..9aec6fcb7729 100644 --- a/tools/testing/selftests/ftrace/test.d/functions +++ b/tools/testing/selftests/ftrace/test.d/functions @@ -30,6 +30,27 @@ reset_events_filter() { # reset all current setting filters done } +reset_ftrace_filter() { # reset all triggers in set_ftrace_filter + echo > set_ftrace_filter + grep -v '^#' set_ftrace_filter | while read t; do + tr=`echo $t | cut -d: -f2` + if [ "$tr" == "" ]; then + continue + fi + if [ $tr == "enable_event" -o $tr == "disable_event" ]; then + tr=`echo $t | cut -d: -f1-4` + limit=`echo $t | cut -d: -f5` + else + tr=`echo $t | cut -d: -f1-2` + limit=`echo $t | cut -d: -f3` + fi + if [ "$limit" != "unlimited" ]; then + tr="$tr:$limit" + fi + echo "!$tr" > set_ftrace_filter + done +} + disable_events() { echo 0 > events/enable } |