I am trying to learn FTrace for Kernel Debugging in Android Platform using JBP ,Kernel 3.4.0 . I am facing a few challenges .
My question --
1) First of all if I checked the available_tracers folder and came to know that I have -
wakeup_rt wakeup nop
I want to use function tracer , but it is not available in available_tracers list. So how can I use function tracer.??
2) After I succeed in making current_tracer to function , How to use this ? How can I do actual debugging checking by referring trace file..