From patchwork Thu Aug 30 14:20:28 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: 10581787 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 A421214E1 for ; Thu, 30 Aug 2018 14:20:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 94D692BFE6 for ; Thu, 30 Aug 2018 14:20:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 930FE2BFF9; Thu, 30 Aug 2018 14:20:52 +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 459D52C017 for ; Thu, 30 Aug 2018 14:20:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729117AbeH3SXN (ORCPT ); Thu, 30 Aug 2018 14:23:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:43886 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729080AbeH3SXN (ORCPT ); Thu, 30 Aug 2018 14:23:13 -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 4B92A205C9; Thu, 30 Aug 2018 14:20:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1535638851; bh=odrEvC5ZlRwgUG+Eg9lRIpdQ5GsduICihXcxMsnb5HM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eDHn5Git51MmCAuE1dJWKO4k2+ohT2nl5tXA3XILMCY8iaFN7yyH+C/Wctnnf8ExN 5rLn13BOMmKpEUJb4+aAE/jIH7vu+AS3QPHzA0Gn3oPRfAa8bde2dHkDFFrC1FH+97 vs7PaF04oD+3yW620gZkLjL8uvWzsXpfcv7YzlK0= 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 v3 17/28] selftests/ftrace: Add kprobe profile testcase Date: Thu, 30 Aug 2018 23:20:28 +0900 Message-Id: <153563882827.29700.10174083050862372644.stgit@devbox> X-Mailer: git-send-email 2.13.6 In-Reply-To: <153563834333.29700.11242968505215651399.stgit@devbox> References: <153563834333.29700.11242968505215651399.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 testing kprobe_profile interface which provides per-kprobe event hit/misshit counts. Signed-off-by: Masami Hiramatsu --- .../selftests/ftrace/test.d/kprobe/profile.tc | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/profile.tc diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc new file mode 100644 index 000000000000..0384b525cdee --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc @@ -0,0 +1,15 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Kprobe dynamic event - adding and removing + +[ -f kprobe_events ] || exit_unsupported # this is configurable + +! grep -q 'myevent' kprobe_profile +echo p:myevent _do_fork > kprobe_events +grep -q 'myevent[[:space:]]*0[[:space:]]*0$' kprobe_profile +echo 1 > events/kprobes/myevent/enable +( echo "forked" ) +grep -q 'myevent[[:space:]]*[[:digit:]]*[[:space:]]*0$' kprobe_profile +echo 0 > events/kprobes/myevent/enable +echo > kprobe_events +! grep -q 'myevent' kprobe_profile