From patchwork Thu Aug 19 15:26:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Rostedt X-Patchwork-Id: 12447411 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 autolearn=ham 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 66424C43214 for ; Thu, 19 Aug 2021 15:28:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4E13961029 for ; Thu, 19 Aug 2021 15:28:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240051AbhHSP3E (ORCPT ); Thu, 19 Aug 2021 11:29:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:60302 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239990AbhHSP3D (ORCPT ); Thu, 19 Aug 2021 11:29:03 -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 3727A60FE8; Thu, 19 Aug 2021 15:28:27 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.94.2) (envelope-from ) id 1mGjxx-004hgw-SJ; Thu, 19 Aug 2021 11:28:25 -0400 Message-ID: <20210819152825.715290342@goodmis.org> User-Agent: quilt/0.66 Date: Thu, 19 Aug 2021 11:26:09 -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 v8 5/5] selftests/ftrace: Add selftest for testing duplicate eprobes and kprobes References: <20210819152604.704335282@goodmis.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: "Steven Rostedt (VMware)" Add a selftest that makes sure that eprobes and kprobes can not be created with the same group and name as existing events. Cc: Shuah Khan Cc: Shuah Khan Cc: linux-kselftest@vger.kernel.org Signed-off-by: Steven Rostedt (VMware) --- .../ftrace/test.d/dynevent/test_duplicates.tc | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc new file mode 100644 index 000000000000..022b569267ed --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc @@ -0,0 +1,28 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Generic dynamic event - check if duplicate events are caught +# requires: dynamic_events "e[:[/]] .o []":README + +echo 0 > events/enable + +clear_dynamic_events + +# first create dynamic events for eprobes and kprobes. + +echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events +echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events + +# Test eprobe for same eprobe, existing kprobe and existing event +! echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events +! echo 'e:kgroup/kevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events +! echo 'e:syscalls/sys_enter_open syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events + +# Test kprobe for same kprobe, existing eprobe and existing event +! echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events +! echo 'p:egroup/eevent vfs_open file=+0($arg2)' >> dynamic_events +! echo 'p:syscalls/sys_enter_open vfs_open file=+0($arg2)' >> dynamic_events + +echo '-:egroup/eevent' >> dynamic_events +echo '-:kgroup/kevent' >> dynamic_events + +clear_trace