From patchwork Thu Aug 16 16:40:59 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Masami Hiramatsu (Google)" X-Patchwork-Id: 10567839 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 974EE139A for ; Thu, 16 Aug 2018 16:41:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 865852B47E for ; Thu, 16 Aug 2018 16:41:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 78DE72B4FF; Thu, 16 Aug 2018 16:41:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1881B2B47E for ; Thu, 16 Aug 2018 16:41:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392561AbeHPTk7 (ORCPT ); Thu, 16 Aug 2018 15:40:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:53722 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727949AbeHPTk5 (ORCPT ); Thu, 16 Aug 2018 15:40:57 -0400 Received: from localhost.localdomain (NE2965lan1.rev.em-net.ne.jp [210.141.244.193]) (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 09DCC208E9; Thu, 16 Aug 2018 16:41:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1534437682; bh=4kuI0v96YRXOvssBQpRgnZo6fwZ/LVIytRx1YTKoWhE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vxQRgqXY8h0FoKtvc8/sfUelIPqHRQnOukRFe1wQav29xd1CzesxVJSXL3yQsPcN7 nmiPL79qMLuzdu5d/Du5wxNFsvNPiz8SK1kWbv2KLDJWxQ7CCFCUrdZHMUlGHITJmd comnn7K8szqi+nvIG3lWA5by8V7vzygHGcijvad4= From: Masami Hiramatsu To: Shuah Khan , Steven Rostedt Cc: Ingo Molnar , Masami Hiramatsu , linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 25/32] selftests/ftrace: Add function filter on module testcase Date: Fri, 17 Aug 2018 01:40:59 +0900 Message-Id: <153443765894.23257.13622063956539869338.stgit@devbox> X-Mailer: git-send-email 2.13.6 In-Reply-To: <153443695002.23257.13628220023468200991.stgit@devbox> References: <153443695002.23257.13628220023468200991.stgit@devbox> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a testcase for function filter on module. Signed-off-by: Masami Hiramatsu --- .../ftrace/test.d/ftrace/func_mod_trace.tc | 24 ++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc new file mode 100644 index 000000000000..359380c3834f --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc @@ -0,0 +1,24 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: ftrace - function trace on module + +[ ! -f set_ftrace_filter ] && exit_unsupported + +: "mod: allows to filter a non exist function" +echo 'non_exist_func:mod:non_exist_module' > set_ftrace_filter +grep -q "non_exist_func" set_ftrace_filter + +: "mod: on exist module" +echo '*:mod:trace_printk' > set_ftrace_filter +if ! modprobe trace-printk.ko ; then + echo "No trace-printk sample module - please make CONFIG_SAMPLE_TRACE_PRINTK= +m" + exit_unresolved; +fi + +: "Wildcard should be resolved after loading module" +grep -q "trace_printk_irq_work" set_ftrace_filter + +: "After removing the filter becomes empty" +rmmod trace_printk +test `cat set_ftrace_filter | wc -l` -eq 0