ftrace: add self-tests

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 13 insertions, 0 deletions

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index cad9db1dee02..3f73a1710242 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -105,3 +105,16 @@ config DYNAMIC_FTRACE
          wakes up once a second and checks to see if any ftrace calls
          were made. If so, it runs stop_machine (stops all CPUS)
          and modifies the code to jump over the call to ftrace.
+
+config FTRACE_SELFTEST
+        bool
+
+config FTRACE_STARTUP_TEST
+        bool "Perform a startup test on ftrace"
+        depends on TRACING
+        select FTRACE_SELFTEST
+        help
+          This option performs a series of startup tests on ftrace. On bootup
+          a series of tests are made to verify that the tracer is
+          functioning properly. It will do tests on all the configured
+          tracers of ftrace.