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-rw-r--r--kernel/trace/trace_selftest.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 3877dd9102f1..033a6fb2e5ff 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -537,3 +537,31 @@ trace_selftest_startup_sched_switch(struct tracer *trace, struct trace_array *tr
537 return ret; 537 return ret;
538} 538}
539#endif /* CONFIG_CONTEXT_SWITCH_TRACER */ 539#endif /* CONFIG_CONTEXT_SWITCH_TRACER */
540
541#ifdef CONFIG_SYSPROF_TRACER
542int
543trace_selftest_startup_sysprof(struct tracer *trace, struct trace_array *tr)
544{
545 unsigned long count;
546 int ret;
547
548 /* start the tracing */
549 tr->ctrl = 1;
550 trace->init(tr);
551 /* Sleep for a 1/10 of a second */
552 msleep(100);
553 /* stop the tracing. */
554 tr->ctrl = 0;
555 trace->ctrl_update(tr);
556 /* check the trace buffer */
557 ret = trace_test_buffer(tr, &count);
558 trace->reset(tr);
559
560 if (!ret && !count) {
561 printk(KERN_CONT ".. no entries found ..");
562 ret = -1;
563 }
564
565 return ret;
566}
567#endif /* CONFIG_SYSPROF_TRACER */