From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frank Rowand Subject: Re: [RFC v4 08/17] kunit: test: add support for test abort Date: Mon, 18 Feb 2019 11:52:37 -0800 Message-ID: References: <20190214213729.21702-1-brendanhiggins@google.com> <20190214213729.21702-9-brendanhiggins@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190214213729.21702-9-brendanhiggins-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-nvdimm-bounces-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org Sender: "Linux-nvdimm" To: Brendan Higgins , keescook-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, mcgrof-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, shuah-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, kieran.bingham-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org Cc: brakmo-b10kYP2dOMg@public.gmane.org, pmladek-IBi9RG/b67k@public.gmane.org, amir73il-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, Alexander.Levin-0li6OtcxBFHby3iVrkZq2A@public.gmane.org, linux-kselftest-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org, richard-/L3Ra7n9ekc@public.gmane.org, knut.omang-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, wfg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, joel-U3u1mxZcP9KHXe+LvDLADg@public.gmane.org, jdike-OPE4K8JWMJJBDgjK7y7TUQ@public.gmane.org, dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Tim.Bird-7U/KSKJipcs@public.gmane.org, linux-um-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org, julia.lawall-L2FTfq7BK8M@public.gmane.org, kunit-dev-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, daniel-/w4YWyX8dFk@public.gmane.org, mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org, joe-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org, khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org List-Id: linux-nvdimm@lists.01.org On 2/14/19 1:37 PM, Brendan Higgins wrote: > Add support for aborting/bailing out of test cases. Needed for > implementing assertions. > > Signed-off-by: Brendan Higgins > --- > Changes Since Last Version > - This patch is new introducing a new cross-architecture way to abort > out of a test case (needed for KUNIT_ASSERT_*, see next patch for > details). > - On a side note, this is not a complete replacement for the UML abort > mechanism, but covers the majority of necessary functionality. UML > architecture specific featurs have been dropped from the initial > patchset. > --- > include/kunit/test.h | 24 +++++ > kunit/Makefile | 3 +- > kunit/test-test.c | 127 ++++++++++++++++++++++++++ > kunit/test.c | 208 +++++++++++++++++++++++++++++++++++++++++-- > 4 files changed, 353 insertions(+), 9 deletions(-) > create mode 100644 kunit/test-test.c < snip > > diff --git a/kunit/test.c b/kunit/test.c > index d18c50d5ed671..6e5244642ab07 100644 > --- a/kunit/test.c > +++ b/kunit/test.c > @@ -6,9 +6,9 @@ > * Author: Brendan Higgins > */ > > -#include > #include > -#include > +#include > +#include > #include > > static bool kunit_get_success(struct kunit *test) > @@ -32,6 +32,27 @@ static void kunit_set_success(struct kunit *test, bool success) > spin_unlock_irqrestore(&test->lock, flags); > } > > +static bool kunit_get_death_test(struct kunit *test) > +{ > + unsigned long flags; > + bool death_test; > + > + spin_lock_irqsave(&test->lock, flags); > + death_test = test->death_test; > + spin_unlock_irqrestore(&test->lock, flags); > + > + return death_test; > +} > + > +static void kunit_set_death_test(struct kunit *test, bool death_test) > +{ > + unsigned long flags; > + > + spin_lock_irqsave(&test->lock, flags); > + test->death_test = death_test; > + spin_unlock_irqrestore(&test->lock, flags); > +} > + > static int kunit_vprintk_emit(const struct kunit *test, > int level, > const char *fmt, > @@ -70,13 +91,29 @@ static void kunit_fail(struct kunit *test, struct kunit_stream *stream) > stream->commit(stream); > } > > +static void __noreturn kunit_abort(struct kunit *test) > +{ > + kunit_set_death_test(test, true); > + > + test->try_catch.throw(&test->try_catch); > + > + /* > + * Throw could not abort from test. > + */ > + kunit_err(test, "Throw could not abort from test!"); > + show_stack(NULL, NULL); > + BUG(); kunit_abort() is what will be call as the result of an assert failure. BUG(), which is a panic, which is crashing the system is not acceptable in the Linux kernel. You will just annoy Linus if you submit this. -Frank < snip > From mboxrd@z Thu Jan 1 00:00:00 1970 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=-6.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 6ED71C43381 for ; Mon, 18 Feb 2019 19:52:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 38BE3217D9 for ; Mon, 18 Feb 2019 19:52:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XsVB7dOp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726627AbfBRTwm (ORCPT ); Mon, 18 Feb 2019 14:52:42 -0500 Received: from mail-pl1-f193.google.com ([209.85.214.193]:42401 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725775AbfBRTwl (ORCPT ); Mon, 18 Feb 2019 14:52:41 -0500 Received: by mail-pl1-f193.google.com with SMTP id s1so9213428plp.9; Mon, 18 Feb 2019 11:52:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=JEPXci3KQI2klfVBfktqeKE5UjX27j54j5u/w1t6njM=; b=XsVB7dOp4modAKdRFW+7/ijHREnsb7qLP6ur6KOYfoGO682O8o5SodYK3WkuQa3fww bJekk3q0RSaGWhidOU7/8j2XOOazNhZ4PbPsdNwhLJ4XjaYakFqJ9seB9e9WswsS2ytd NaYQ4jh4DF7kPmfDf5DqlNa2CJ0V62nTBhHAvmHU/29b712dUIpdbz3usdoQnFlhF9HZ /2yp2yvO+QU55tIWC6JL5B/pHzE0Suxddb68wzK9FolUGrLhXcPsdyf760AQ/2mz9aAY Hh5Z+RWGSOk9F7y3cGPHXiAVWMfxfbf0V3bu5fVYf2ghdI79T8Lhm/Xy+FcXSST19yzI J0xQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=JEPXci3KQI2klfVBfktqeKE5UjX27j54j5u/w1t6njM=; b=e+fc369uw9hgCE/vG0HGJDgSlwLqJhV0WesfCs85Hj3I6isQlN7M08S9KMI2dIqxWq wiH1YI7eVxZJrshUQBLOq0g6g3/wANDPeYOS18mbSZSzVCqCd8ibsAFvmniqDWmcZ/Nt HdI4VJ1XTMlM7HdGVXHjYyrb1+yex1rEekvtsGqMcwu8O9DrF19U0HWrJD0uSVwqCpra 4Osn+nYAnGXiBjinAUGLulwyRWCP4A4XpbAYJrSOJx0256M81vxVOfh0DBA52vIzKT55 6eYgauDlIkKRqNLui5hk9EmBs4F5Sid56vZJt6/AZgAc/cuuV7ybxGDwjLfAOAgYYh6j f3Sg== X-Gm-Message-State: AHQUAub5PB+pi9jBgiGcQ0RgxVnn890hg9bKEV/Dzt1cwL1DdzxPgwpy y0ZcqxyKfvo1EBCDVdYRzvY= X-Google-Smtp-Source: AHgI3IaHfF0xeNU3nsTqBNbvRHMP45E49KKY4SxHMqIYceeKw2abxZ1zNqiFC7Vj9ZoK+9oIFQf+wQ== X-Received: by 2002:a17:902:e18c:: with SMTP id cd12mr25983536plb.279.1550519560714; Mon, 18 Feb 2019 11:52:40 -0800 (PST) Received: from [192.168.1.70] (c-24-6-192-50.hsd1.ca.comcast.net. [24.6.192.50]) by smtp.gmail.com with ESMTPSA id e123sm26852981pgc.14.2019.02.18.11.52.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Feb 2019 11:52:40 -0800 (PST) Subject: Re: [RFC v4 08/17] kunit: test: add support for test abort To: Brendan Higgins , keescook@google.com, mcgrof@kernel.org, shuah@kernel.org, robh@kernel.org, kieran.bingham@ideasonboard.com Cc: gregkh@linuxfoundation.org, joel@jms.id.au, mpe@ellerman.id.au, joe@perches.com, brakmo@fb.com, rostedt@goodmis.org, Tim.Bird@sony.com, khilman@baylibre.com, julia.lawall@lip6.fr, linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com, linux-kernel@vger.kernel.org, jdike@addtoit.com, richard@nod.at, linux-um@lists.infradead.org, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, dan.j.williams@intel.com, linux-nvdimm@lists.01.org, knut.omang@oracle.com, devicetree@vger.kernel.org, pmladek@suse.com, Alexander.Levin@microsoft.com, amir73il@gmail.com, dan.carpenter@oracle.com, wfg@linux.intel.com References: <20190214213729.21702-1-brendanhiggins@google.com> <20190214213729.21702-9-brendanhiggins@google.com> From: Frank Rowand Message-ID: Date: Mon, 18 Feb 2019 11:52:37 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <20190214213729.21702-9-brendanhiggins@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/14/19 1:37 PM, Brendan Higgins wrote: > Add support for aborting/bailing out of test cases. Needed for > implementing assertions. > > Signed-off-by: Brendan Higgins > --- > Changes Since Last Version > - This patch is new introducing a new cross-architecture way to abort > out of a test case (needed for KUNIT_ASSERT_*, see next patch for > details). > - On a side note, this is not a complete replacement for the UML abort > mechanism, but covers the majority of necessary functionality. UML > architecture specific featurs have been dropped from the initial > patchset. > --- > include/kunit/test.h | 24 +++++ > kunit/Makefile | 3 +- > kunit/test-test.c | 127 ++++++++++++++++++++++++++ > kunit/test.c | 208 +++++++++++++++++++++++++++++++++++++++++-- > 4 files changed, 353 insertions(+), 9 deletions(-) > create mode 100644 kunit/test-test.c < snip > > diff --git a/kunit/test.c b/kunit/test.c > index d18c50d5ed671..6e5244642ab07 100644 > --- a/kunit/test.c > +++ b/kunit/test.c > @@ -6,9 +6,9 @@ > * Author: Brendan Higgins > */ > > -#include > #include > -#include > +#include > +#include > #include > > static bool kunit_get_success(struct kunit *test) > @@ -32,6 +32,27 @@ static void kunit_set_success(struct kunit *test, bool success) > spin_unlock_irqrestore(&test->lock, flags); > } > > +static bool kunit_get_death_test(struct kunit *test) > +{ > + unsigned long flags; > + bool death_test; > + > + spin_lock_irqsave(&test->lock, flags); > + death_test = test->death_test; > + spin_unlock_irqrestore(&test->lock, flags); > + > + return death_test; > +} > + > +static void kunit_set_death_test(struct kunit *test, bool death_test) > +{ > + unsigned long flags; > + > + spin_lock_irqsave(&test->lock, flags); > + test->death_test = death_test; > + spin_unlock_irqrestore(&test->lock, flags); > +} > + > static int kunit_vprintk_emit(const struct kunit *test, > int level, > const char *fmt, > @@ -70,13 +91,29 @@ static void kunit_fail(struct kunit *test, struct kunit_stream *stream) > stream->commit(stream); > } > > +static void __noreturn kunit_abort(struct kunit *test) > +{ > + kunit_set_death_test(test, true); > + > + test->try_catch.throw(&test->try_catch); > + > + /* > + * Throw could not abort from test. > + */ > + kunit_err(test, "Throw could not abort from test!"); > + show_stack(NULL, NULL); > + BUG(); kunit_abort() is what will be call as the result of an assert failure. BUG(), which is a panic, which is crashing the system is not acceptable in the Linux kernel. You will just annoy Linus if you submit this. -Frank < snip > From mboxrd@z Thu Jan 1 00:00:00 1970 From: frowand.list at gmail.com (Frank Rowand) Date: Mon, 18 Feb 2019 11:52:37 -0800 Subject: [RFC v4 08/17] kunit: test: add support for test abort In-Reply-To: <20190214213729.21702-9-brendanhiggins@google.com> References: <20190214213729.21702-1-brendanhiggins@google.com> <20190214213729.21702-9-brendanhiggins@google.com> Message-ID: On 2/14/19 1:37 PM, Brendan Higgins wrote: > Add support for aborting/bailing out of test cases. Needed for > implementing assertions. > > Signed-off-by: Brendan Higgins > --- > Changes Since Last Version > - This patch is new introducing a new cross-architecture way to abort > out of a test case (needed for KUNIT_ASSERT_*, see next patch for > details). > - On a side note, this is not a complete replacement for the UML abort > mechanism, but covers the majority of necessary functionality. UML > architecture specific featurs have been dropped from the initial > patchset. > --- > include/kunit/test.h | 24 +++++ > kunit/Makefile | 3 +- > kunit/test-test.c | 127 ++++++++++++++++++++++++++ > kunit/test.c | 208 +++++++++++++++++++++++++++++++++++++++++-- > 4 files changed, 353 insertions(+), 9 deletions(-) > create mode 100644 kunit/test-test.c < snip > > diff --git a/kunit/test.c b/kunit/test.c > index d18c50d5ed671..6e5244642ab07 100644 > --- a/kunit/test.c > +++ b/kunit/test.c > @@ -6,9 +6,9 @@ > * Author: Brendan Higgins > */ > > -#include > #include > -#include > +#include > +#include > #include > > static bool kunit_get_success(struct kunit *test) > @@ -32,6 +32,27 @@ static void kunit_set_success(struct kunit *test, bool success) > spin_unlock_irqrestore(&test->lock, flags); > } > > +static bool kunit_get_death_test(struct kunit *test) > +{ > + unsigned long flags; > + bool death_test; > + > + spin_lock_irqsave(&test->lock, flags); > + death_test = test->death_test; > + spin_unlock_irqrestore(&test->lock, flags); > + > + return death_test; > +} > + > +static void kunit_set_death_test(struct kunit *test, bool death_test) > +{ > + unsigned long flags; > + > + spin_lock_irqsave(&test->lock, flags); > + test->death_test = death_test; > + spin_unlock_irqrestore(&test->lock, flags); > +} > + > static int kunit_vprintk_emit(const struct kunit *test, > int level, > const char *fmt, > @@ -70,13 +91,29 @@ static void kunit_fail(struct kunit *test, struct kunit_stream *stream) > stream->commit(stream); > } > > +static void __noreturn kunit_abort(struct kunit *test) > +{ > + kunit_set_death_test(test, true); > + > + test->try_catch.throw(&test->try_catch); > + > + /* > + * Throw could not abort from test. > + */ > + kunit_err(test, "Throw could not abort from test!"); > + show_stack(NULL, NULL); > + BUG(); kunit_abort() is what will be call as the result of an assert failure. BUG(), which is a panic, which is crashing the system is not acceptable in the Linux kernel. You will just annoy Linus if you submit this. -Frank < snip > From mboxrd@z Thu Jan 1 00:00:00 1970 From: frowand.list@gmail.com (Frank Rowand) Date: Mon, 18 Feb 2019 11:52:37 -0800 Subject: [RFC v4 08/17] kunit: test: add support for test abort In-Reply-To: <20190214213729.21702-9-brendanhiggins@google.com> References: <20190214213729.21702-1-brendanhiggins@google.com> <20190214213729.21702-9-brendanhiggins@google.com> Message-ID: Content-Type: text/plain; charset="UTF-8" Message-ID: <20190218195237.X-thTMrkI8aNHbNBLgd1126j3hoO-SvCRl905Uc8wgs@z> On 2/14/19 1:37 PM, Brendan Higgins wrote: > Add support for aborting/bailing out of test cases. Needed for > implementing assertions. > > Signed-off-by: Brendan Higgins > --- > Changes Since Last Version > - This patch is new introducing a new cross-architecture way to abort > out of a test case (needed for KUNIT_ASSERT_*, see next patch for > details). > - On a side note, this is not a complete replacement for the UML abort > mechanism, but covers the majority of necessary functionality. UML > architecture specific featurs have been dropped from the initial > patchset. > --- > include/kunit/test.h | 24 +++++ > kunit/Makefile | 3 +- > kunit/test-test.c | 127 ++++++++++++++++++++++++++ > kunit/test.c | 208 +++++++++++++++++++++++++++++++++++++++++-- > 4 files changed, 353 insertions(+), 9 deletions(-) > create mode 100644 kunit/test-test.c < snip > > diff --git a/kunit/test.c b/kunit/test.c > index d18c50d5ed671..6e5244642ab07 100644 > --- a/kunit/test.c > +++ b/kunit/test.c > @@ -6,9 +6,9 @@ > * Author: Brendan Higgins > */ > > -#include > #include > -#include > +#include > +#include > #include > > static bool kunit_get_success(struct kunit *test) > @@ -32,6 +32,27 @@ static void kunit_set_success(struct kunit *test, bool success) > spin_unlock_irqrestore(&test->lock, flags); > } > > +static bool kunit_get_death_test(struct kunit *test) > +{ > + unsigned long flags; > + bool death_test; > + > + spin_lock_irqsave(&test->lock, flags); > + death_test = test->death_test; > + spin_unlock_irqrestore(&test->lock, flags); > + > + return death_test; > +} > + > +static void kunit_set_death_test(struct kunit *test, bool death_test) > +{ > + unsigned long flags; > + > + spin_lock_irqsave(&test->lock, flags); > + test->death_test = death_test; > + spin_unlock_irqrestore(&test->lock, flags); > +} > + > static int kunit_vprintk_emit(const struct kunit *test, > int level, > const char *fmt, > @@ -70,13 +91,29 @@ static void kunit_fail(struct kunit *test, struct kunit_stream *stream) > stream->commit(stream); > } > > +static void __noreturn kunit_abort(struct kunit *test) > +{ > + kunit_set_death_test(test, true); > + > + test->try_catch.throw(&test->try_catch); > + > + /* > + * Throw could not abort from test. > + */ > + kunit_err(test, "Throw could not abort from test!"); > + show_stack(NULL, NULL); > + BUG(); kunit_abort() is what will be call as the result of an assert failure. BUG(), which is a panic, which is crashing the system is not acceptable in the Linux kernel. You will just annoy Linus if you submit this. -Frank < snip >