From patchwork Thu Dec 19 16:17:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alan Maguire X-Patchwork-Id: 1213537 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-ext4-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=oracle.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=oracle.com header.i=@oracle.com header.b="BwMuhclq"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47dxsK5dY0z9sR4 for ; Fri, 20 Dec 2019 03:19:17 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727167AbfLSQTQ (ORCPT ); Thu, 19 Dec 2019 11:19:16 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:49928 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726760AbfLSQTP (ORCPT ); Thu, 19 Dec 2019 11:19:15 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id xBJGETXG144130; Thu, 19 Dec 2019 16:18:47 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2019-08-05; bh=UtF7imOhmPSAXDklZ55E8gWyotvBGV1fxPBlvWgNXg4=; b=BwMuhclqCDRk/5p5+uSr1dgeBFeUMHqNZJZEgt6NDMAFdZDSU9YvfQCndcso1xY/tvEM b1c7SGbeZOfqsicbnwWD7Mhw6ifyFuxI9pkmFeQ5W9tsexpv8GZjtkQ3a6jNAOGMO5uU plvrVCzA8ubGr5DLLEdYbNM/It4ScnW1zd/QVi/VfsUYdjf6HX2Rlmw1aEEKO7r4t6cC QpYWhoJx0im7XtIyQP1/NZ+bEeLQpeLf8t2q7JgWm+NQ/SWbX6e7m6yea7RelGf+b32f wNrUxJ3jwCS25iHM1iuQQWnm1JlZNHmfiER/F8t6hU/9C3++mKoEfKPfE5inq4n8F7Yn Yg== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2130.oracle.com with ESMTP id 2x01jabu2v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 19 Dec 2019 16:18:46 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id xBJGENdo192678; Thu, 19 Dec 2019 16:18:46 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userp3020.oracle.com with ESMTP id 2x0bgm3770-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 19 Dec 2019 16:18:46 +0000 Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id xBJGIir0019985; Thu, 19 Dec 2019 16:18:44 GMT Received: from dhcp-10-175-212-35.vpn.oracle.com (/10.175.212.35) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 19 Dec 2019 08:18:44 -0800 From: Alan Maguire To: brendanhiggins@google.com, linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kunit-dev@googlegroups.com, keescook@chromium.org, yzaikin@google.com, akpm@linux-foundation.org, yamada.masahiro@socionext.com, catalin.marinas@arm.com, joe.lawrence@redhat.com, penguin-kernel@i-love.sakura.ne.jp, urezki@gmail.com, andriy.shevchenko@linux.intel.com, corbet@lwn.net, davidgow@google.com, adilger.kernel@dilger.ca, tytso@mit.edu, mcgrof@kernel.org, linux-doc@vger.kernel.org, rjw@rjwysocki.net, pavel@ucw.cz, len.brown@intel.com, gregkh@linuxfoundation.org, krzk@kernel.org, linux-pm@vger.kernel.org, linux-ext4@vger.kernel.org, Alan Maguire , Knut Omang Subject: [PATCH v7 linux-kselftest-test 6/6] kunit: update documentation to describe module-based build Date: Thu, 19 Dec 2019 16:17:39 +0000 Message-Id: <1576772259-31382-7-git-send-email-alan.maguire@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1576772259-31382-1-git-send-email-alan.maguire@oracle.com> References: <1576772259-31382-1-git-send-email-alan.maguire@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9476 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=4 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-1912190135 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9476 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=4 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-1912190135 Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Documentation should describe how to build kunit and tests as modules. Co-developed-by: Knut Omang Signed-off-by: Knut Omang Signed-off-by: Alan Maguire Reviewed-by: Stephen Boyd Reviewed-by: Brendan Higgins --- Documentation/dev-tools/kunit/faq.rst | 3 ++- Documentation/dev-tools/kunit/index.rst | 3 +++ Documentation/dev-tools/kunit/usage.rst | 16 ++++++++++++++++ 3 files changed, 21 insertions(+), 1 deletion(-) diff --git a/Documentation/dev-tools/kunit/faq.rst b/Documentation/dev-tools/kunit/faq.rst index bf20951..ea55b24 100644 --- a/Documentation/dev-tools/kunit/faq.rst +++ b/Documentation/dev-tools/kunit/faq.rst @@ -29,7 +29,8 @@ Yes, well, mostly. For the most part, the KUnit core framework (what you use to write the tests) can compile to any architecture; it compiles like just another part of the -kernel and runs when the kernel boots. However, there is some infrastructure, +kernel and runs when the kernel boots, or when built as a module, when the +module is loaded. However, there is some infrastructure, like the KUnit Wrapper (``tools/testing/kunit/kunit.py``) that does not support other architectures. diff --git a/Documentation/dev-tools/kunit/index.rst b/Documentation/dev-tools/kunit/index.rst index 26ffb46..7ddc385 100644 --- a/Documentation/dev-tools/kunit/index.rst +++ b/Documentation/dev-tools/kunit/index.rst @@ -48,6 +48,9 @@ to a standalone program that can be run like any other program directly inside of a host operating system; to be clear, it does not require any virtualization support; it is just a regular program. +Alternatively, kunit and kunit tests can be built as modules and tests will +run when the test module is loaded. + KUnit is fast. Excluding build time, from invocation to completion KUnit can run several dozen tests in only 10 to 20 seconds; this might not sound like a big deal to some people, but having such fast and easy to run tests fundamentally diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst index c6e6963..82f9213 100644 --- a/Documentation/dev-tools/kunit/usage.rst +++ b/Documentation/dev-tools/kunit/usage.rst @@ -539,6 +539,22 @@ Interspersed in the kernel logs you might see the following: Congratulations, you just ran a KUnit test on the x86 architecture! +In a similar manner, kunit and kunit tests can also be built as modules, +so if you wanted to run tests in this way you might add the following config +options to your ``.config``: + +.. code-block:: none + + CONFIG_KUNIT=m + CONFIG_KUNIT_EXAMPLE_TEST=m + +Once the kernel is built and installed, a simple + +.. code-block:: bash + modprobe example-test + +...will run the tests. + Writing new tests for other architectures -----------------------------------------