Re: [PATCH] selftests/ftrace: avoid failure when trying to probe a notrace function

Steven Rostedt
2019-07-08T18:56:23Z

On Mon, 8 Jul 2019 15:19:33 -0300
Thadeu Lima de Souza Cascardo <cascardo@canonical.com> wrote:

> Check that the function is on available_filter_functions. If it's not,
> mark the test as unresolved, instead of failing it.
>

Actually, I sent this out a while ago:

http://lkml.kernel.org/r/20190322150923.1b58eca5@gandalf.local.home

Does that fix it for you?

-- Steve

> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
> ---
> tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
> index 3fb70e01b1fe..e4dff034da12 100644
> --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
> +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
> @@ -26,6 +26,7 @@ test -d events/kprobes2/event2 || exit_failure
>
> FUNC=`grep -m 10 " [tT] .*\.isra\..*$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "`
> [ "x" != "x$FUNC" ] || exit_unresolved
> +grep -n "$FUNC" available_filter_functions || exit_unresolved
> echo "p $FUNC" > kprobe_events
> EVENT=`grep $FUNC kprobe_events | cut -f 1 -d " " | cut -f 2 -d:`
> [ "x" != "x$EVENT" ] || exit_failure