linux/tools/testing
Steven Rostedt (VMware) 43bb45da82 selftests: ftrace: Add a selftest to test event enable/disable func trigger
This adds a test to enable and disable trace events via the function
triggers. It tests enabling and disabling the sched:sched_switch event via
the the event_enable and event_disable function triggers attached to the
schedule() kernel function.

The test does the following:

 o disable all events

 o disables or enables the sched_switch event

 o writes schedule:event_enable/disable:sched:sched_switch into set_ftrace_filter

 o 5 times it checks to make sure:

    . Writes 0/1 into the sched_switch/enable

    . Checks that the sched_switch/enable goes back to 1/0

 o Resets the events

 o writes schedule:event_enable/disable:sched:sched_switch:3 into set_ftrace_filter

 o Does a loop of 3 to see that sched_switch/enable file gets updated

 o Makes sure the sched_switch/enable stops getting updated

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-04-18 13:48:26 -04:00
..
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selftests selftests: ftrace: Add a selftest to test event enable/disable func trigger 2017-04-18 13:48:26 -04:00