[PATCH 1/2 v3] ftracetest: Add functions file that holds helper functions

From: Steven Rostedt
Date: Tue Nov 04 2014 - 10:31:03 EST


From: "Steven Rostedt (Red Hat)" <rostedt@xxxxxxxxxxx>

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@xxxxxxxxxxx

Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
tools/testing/selftests/ftrace/ftracetest | 3 +++
tools/testing/selftests/ftrace/test.d/functions | 16 ++++++++++++++++
2 files changed, 19 insertions(+)
create mode 100644 tools/testing/selftests/ftrace/test.d/functions

diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
index f15c0da07aca..c6381a9faf83 100755
--- a/tools/testing/selftests/ftrace/ftracetest
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -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
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions
new file mode 100644
index 000000000000..5d8cd06d920f
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/functions
@@ -0,0 +1,16 @@
+
+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
+}
--
2.1.1


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/