From patchwork Fri Aug 20 20:46:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 12450419 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02DEBC19F34 for ; Fri, 20 Aug 2021 20:47:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D5C2D61164 for ; Fri, 20 Aug 2021 20:47:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230465AbhHTUsY (ORCPT ); Fri, 20 Aug 2021 16:48:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:36106 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231161AbhHTUsV (ORCPT ); Fri, 20 Aug 2021 16:48:21 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 68C4061181; Fri, 20 Aug 2021 20:47:43 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.94.2) (envelope-from ) id 1mHBQU-004qPl-E5; Fri, 20 Aug 2021 16:47:42 -0400 Message-ID: <20210820204742.274591200@goodmis.org> User-Agent: quilt/0.66 Date: Fri, 20 Aug 2021 16:46:48 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-devel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Masami Hiramatsu , "Tzvetomir Stoyanov" , Tom Zanussi , Shuah Khan , Shuah Khan , linux-kselftest@vger.kernel.org Subject: [PATCH v9 4/6] selftests/ftrace: Add test case to test adding and removing of event probe References: <20210820204644.546662591@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org From: "Steven Rostedt (VMware)" Add a test case that adds an event probe, makes sure that it works, and then removes it. Link: https://lore.kernel.org/linux-kselftest/20210819152825.526931866@goodmis.org/ Cc: Shuah Khan Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Signed-off-by: Steven Rostedt (VMware) Acked-by: Masami Hiramatsu --- .../test.d/dynevent/add_remove_eprobe.tc | 40 +++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc new file mode 100644 index 000000000000..25a3da4eaa44 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc @@ -0,0 +1,40 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - add/remove eprobe events +# requires: dynamic_events events/syscalls/sys_enter_openat "e[:[/]] . []":README + +echo 0 > events/enable + +clear_dynamic_events + +SYSTEM="syscalls" +EVENT="sys_enter_openat" +FIELD="filename" +EPROBE="eprobe_open" + +echo "e:$EPROBE $SYSTEM/$EVENT file=+0(\$filename):ustring" >> dynamic_events + +grep -q "$EPROBE" dynamic_events +test -d events/eprobes/$EPROBE + +echo 1 > events/eprobes/$EPROBE/enable +ls +echo 0 > events/eprobes/$EPROBE/enable + +content=`grep '^ *ls-' trace | grep 'file='` +nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true + +if [ -z "$content" ]; then + exit_fail +fi + +if [ ! -z "$nocontent" ]; then + exit_fail +fi + +echo "-:$EPROBE" >> dynamic_events + +! grep -q "$EPROBE" dynamic_events +! test -d events/eprobes/$EPROBE + +clear_trace