/* Attention:
   If you choose to run all the following probes, your system
   will become rather slow.
 
   the log_user_data() in each event probe is only a demo of
   the existance of this function. The data logged by it is
   rather meaningless.
*/
probe begin
{
	log("begin")
	/* to take a snapshot of all the processes */
	process_snapshot()
}

/* to trace system calls entry, hookID = 1 */
probe addevent.syscall.entry
{
	log_user_data("Prototype for syscall entry, Ver: 0.1")
}

/* to trace system calls exit, hookID = 2 */
probe addevent.syscall.return
{
	log_user_data("Prototype for syscall return, Ver: 0.1")
}

/* to trace process creation, include "fork" and "execve", 
  hookID: 3 for execve and 4 for fork */
probe addevent.process
{
	log_user_data("Prototype for process creation, Ver: 0.1")
}

/* to trace io scheduler activities, 
 hookID 5: a request is retrieved from request queue 
 hookID 6: a request is added to the request queue
 hookID 7: a request is removed from the request queue */
probe addevent.ioscheduler 
{
	log_user_data("Prototype for io scheduler, Ver: 0.1")
}

/* to trace tasks dispatching. 
  hookID: 8 for context switch and 9 when cpu is idle */
probe addevent.tskdispatch
{
	log_user_data("Prototype for tskdispatch, Ver: 0.1")
}

/* to trace backtrace, 
  hookID=10: for cpuidle
  hookID=11: when an io request is dispatched to scsi layer, 
      failed on PPC64, refer to backtrace.stp */
probe addevent.backtrace
{
	log_user_data("Prototype for backtrace, Ver: 0.1")
}

/* to trace scsi activities,
  failed to run on PPC64, refer to scsi.stp

  hookID = 13: mid-layer prepare a IO request
  hookID = 14: Dispatch a command to the low-level driver
  hookID = 15: I/O is done by low-level driver
  hookID = 16: mid-layer processes the completed IO 
*/
probe addevent.scsi
{
	log_user_data("Prototype for scsi, Ver: 0.1")
}

probe end
{
	log("end")
}