diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-05-12 21:20:47 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-23 23:39:38 +0200 |
| commit | a6dd24f8d00cbccb560b19a723e6fb9bdfb20799 (patch) | |
| tree | 8170d270a55b3d5856eef54a16e76b24d5a62c38 /kernel/trace/trace_selftest.c | |
| parent | ftrace: extend sysprof plugin some more (diff) | |
| download | linux-a6dd24f8d00cbccb560b19a723e6fb9bdfb20799.tar.xz linux-a6dd24f8d00cbccb560b19a723e6fb9bdfb20799.zip | |
ftrace: sysprof-plugin, add self-tests
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/trace/trace_selftest.c')
| -rw-r--r-- | kernel/trace/trace_selftest.c | 28 |
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 return ret; } #endif /* CONFIG_CONTEXT_SWITCH_TRACER */ + +#ifdef CONFIG_SYSPROF_TRACER +int +trace_selftest_startup_sysprof(struct tracer *trace, struct trace_array *tr) +{ + unsigned long count; + int ret; + + /* start the tracing */ + tr->ctrl = 1; + trace->init(tr); + /* Sleep for a 1/10 of a second */ + msleep(100); + /* stop the tracing. */ + tr->ctrl = 0; + trace->ctrl_update(tr); + /* check the trace buffer */ + ret = trace_test_buffer(tr, &count); + trace->reset(tr); + + if (!ret && !count) { + printk(KERN_CONT ".. no entries found .."); + ret = -1; + } + + return ret; +} +#endif /* CONFIG_SYSPROF_TRACER */ |