Commit ee3988c7 authored Nov 03, 2014 by Steven Rostedt (Red Hat) Committed by Steven Rostedt Nov 06, 2014

ftracetest: Add functions file that holds helper functions

Created the file tools/testing/ftrace/test.d/functions that will
hold helper functions.

Current helper functions include:

 Add clear_trace() helper to reset the trace file

   Used as a descriptive name to show that "echo > trace" is clearing
   the trace file.

 Add disable/enable_tracing() helper calls

   Add calls that disable and enable tracing respectively by echoing
   0 or 1 into tracing_on.

 Add helper reset_tracer() function

    Add a helper function reset_tracer() that will clear the current_tracer
    (echo nop > current_tracer).

Link: http://lkml.kernel.org/r/20141103212737.696365174@goodmis.org
Link: http://lkml.kernel.org/r/20141104153028.465517119@goodmis.org



Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

parent 52100d7f

tools/testing/selftests/ftrace/ftracetest

+3 −0

Original line number	Diff line number	Diff line
		@@ -235,6 +235,9 @@ run_test() { # testfile
		fi
		}

		# load in the helper functions
		. $TEST_DIR/functions

		# Main loop
		for t in $TEST_CASES; do
		run_test $t

tools/testing/selftests/ftrace/test.d/functions

0 → 100644

+16 −0

Original line number	Diff line number	Diff line

		clear_trace() { # reset trace output
		echo > trace
		}

		disable_tracing() { # stop trace recording
		echo 0 > tracing_on
		}

		enable_tracing() { # start trace recording
		echo 1 > tracing_on
		}

		reset_tracer() { # reset the current tracer
		echo nop > current_tracer
		}