rtla/src/timerlat_aa.c

123  * It could be stored inside the trace context. But every access would
354 		 * which the event is placed in the buffer (the trace
477  * timerlat_aa_stack_handler - Handles timerlat IRQ stack trace
479  * Saves and parse the stack trace generated by the timerlat IRQ.
492 	trace_seq_printf(taa_data->stack_seq, "    Blocking thread stack trace\n");
496 			function = tep_find_function(taa_ctx->tool->trace.tep, caller[i]);
509  * Handles the sched:sched_switch event to trace the current thread running on the
510  * CPU. It is used to display the threads running on the other CPUs when the trace
579 	 * Expected IRQ arrival time using the trace clock as the base.
607 		 * If the trace stopped due to IRQ, the other events will not happen
608 		 * because... the trace stopped :-).
610 		 * That is all folks, the stack trace was printed before the stop,
641 	 * Print the stack trace!
708 	struct trace_instance *trace = &taa_ctx->tool->trace;
711 	retval = tracefs_iterate_raw_events(trace->tep,
712 					    trace->inst,
716 					    trace);
773 		tep = taa_ctx->tool->trace.tep;
901 	tep_unregister_event_handler(tool->trace.tep, -1, "ftrace", "timerlat",
904 	tracefs_event_disable(tool->trace.inst, "osnoise", NULL);
906 	tep_unregister_event_handler(tool->trace.tep, -1, "osnoise", "nmi_noise",
909 	tep_unregister_event_handler(tool->trace.tep, -1, "osnoise", "irq_noise",
912 	tep_unregister_event_handler(tool->trace.tep, -1, "osnoise", "softirq_noise",
915 	tep_unregister_event_handler(tool->trace.tep, -1, "osnoise", "thread_noise",
918 	tep_unregister_event_handler(tool->trace.tep, -1, "ftrace", "kernel_stack",
923 	tracefs_event_disable(tool->trace.inst, "sched", "sched_switch");
924 	tep_unregister_event_handler(tool->trace.tep, -1, "sched", "sched_switch",
927 	tracefs_event_disable(tool->trace.inst, "workqueue", "workqueue_execute_start");
928 	tep_unregister_event_handler(tool->trace.tep, -1, "workqueue", "workqueue_execute_start",
941 	tep_register_event_handler(tool->trace.tep, -1, "ftrace", "timerlat",
948 	retval = tracefs_event_enable(tool->trace.inst, "osnoise", NULL);
954 	tep_register_event_handler(tool->trace.tep, -1, "osnoise", "nmi_noise",
957 	tep_register_event_handler(tool->trace.tep, -1, "osnoise", "irq_noise",
960 	tep_register_event_handler(tool->trace.tep, -1, "osnoise", "softirq_noise",
963 	tep_register_event_handler(tool->trace.tep, -1, "osnoise", "thread_noise",
966 	tep_register_event_handler(tool->trace.tep, -1, "ftrace", "kernel_stack",
975 	retval = tracefs_event_enable(tool->trace.inst, "sched", "sched_switch");
981 	tep_register_event_handler(tool->trace.tep, -1, "sched", "sched_switch",
984 	retval = tracefs_event_enable(tool->trace.inst, "workqueue", "workqueue_execute_start");
990 	tep_register_event_handler(tool->trace.tep, -1, "workqueue", "workqueue_execute_start",