1. 07 Feb, 2021 1 commit
    • Philippe Gerum's avatar
      utils: evl-trace: add support for trace groups · 969ec9c1
      Philippe Gerum authored
      
      
      It comes in handy to be able to enable a set of related tracepoints
      for specific tracing purposes.
      
      The -e option can now take an optional parameter specifying a
      pre-defined group of related tracepoints to enable, so far:
      
      irq = pipeline_entry, pipeline_exit, handler_entry, handler_exit
      timer = tracepoints related to timer event handling with latmus (used in
      chasing latency in the timer handling path)
      evl = all core tracepoints
      all = all tracepoints ftrace knows about
      
      -eall is identical to -f.
      
      -E<tracepoint_file> enables the tracepoints mentioned in the
       user-provided <file>.
      
      -t can be passed to dry-run the enable command, getting the list of
       ftrace settings which would have been set without this option when
       enabling the trace.
      Signed-off-by: default avatarPhilippe Gerum <rpm@xenomai.org>
      969ec9c1
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