From patchwork Mon Jul 1 11:10:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alessandro Zucchelli X-Patchwork-Id: 13717907 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A8F4EC2BD09 for ; Mon, 1 Jul 2024 11:11:22 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.751472.1159447 (Exim 4.92) (envelope-from ) id 1sOEwB-0002Yd-8X; Mon, 01 Jul 2024 11:11:11 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 751472.1159447; Mon, 01 Jul 2024 11:11:11 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sOEwB-0002YW-5l; Mon, 01 Jul 2024 11:11:11 +0000 Received: by outflank-mailman (input) for mailman id 751472; Mon, 01 Jul 2024 11:11:10 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sOEwA-0002K1-E4 for xen-devel@lists.xenproject.org; Mon, 01 Jul 2024 11:11:10 +0000 Received: from support.bugseng.com (mail.bugseng.com [162.55.131.47]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 9e1091ed-379a-11ef-b4bb-af5377834399; Mon, 01 Jul 2024 13:11:08 +0200 (CEST) Received: from delta.bugseng.com.homenet.telecomitalia.it (host-79-60-221-62.business.telecomitalia.it [79.60.221.62]) by support.bugseng.com (Postfix) with ESMTPSA id D8DF14EE0749; Mon, 1 Jul 2024 13:11:05 +0200 (CEST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 9e1091ed-379a-11ef-b4bb-af5377834399 From: Alessandro Zucchelli To: xen-devel@lists.xenproject.org Cc: consulting@bugseng.com, Simone Ballarin , Andrew Cooper , Jan Beulich , Julien Grall , Stefano Stabellini , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Nicola Vetrini , Alessandro Zucchelli Subject: [PATCH 01/17] misra: add deviation for headers that explicitly avoid guards Date: Mon, 1 Jul 2024 13:10:19 +0200 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 From: Simone Ballarin Some headers, under specific circumstances (documented in a comment at the beginning of the file), explicitly avoid inclusion guards: the caller is responsible for including them correctly. These files are not supposed to comply with Directive 4.10: "Precautions shall be taken in order to prevent the contents of a header file being included more than once" This patch adds deviation cooments for headers that avoid guards. Signed-off-by: Simone Ballarin Signed-off-by: Nicola Vetrini Signed-off-by: Alessandro Zucchelli --- Changes in v4: - rebased against current staging tree Changes in v3: - fix inconsistent deviation ID - change comment-based deviation text Changes in v2: - use the format introduced with doc/misra/safe.json instead of a generic text-based deviation --- docs/misra/safe.json | 8 ++++++++ xen/include/public/arch-x86/cpufeatureset.h | 1 + xen/include/public/errno.h | 1 + 3 files changed, 10 insertions(+) diff --git a/docs/misra/safe.json b/docs/misra/safe.json index 3f18ef401c..b865caac73 100644 --- a/docs/misra/safe.json +++ b/docs/misra/safe.json @@ -68,6 +68,14 @@ }, { "id": "SAF-8-safe", + "analyser": { + "eclair": "MC3R1.D4.10" + }, + "name": "Dir 4.10: headers that leave it up to the caller to include them correctly", + "text": "Headers that deliberatively avoid inclusion guards explicitly leaving responsibility to the caller are allowed." + }, + { + "id": "SAF-9-safe", "analyser": {}, "name": "Sentinel", "text": "Next ID to be used" diff --git a/xen/include/public/arch-x86/cpufeatureset.h b/xen/include/public/arch-x86/cpufeatureset.h index d9eba5e9a7..0d2adfdc3a 100644 --- a/xen/include/public/arch-x86/cpufeatureset.h +++ b/xen/include/public/arch-x86/cpufeatureset.h @@ -23,6 +23,7 @@ * their XEN_CPUFEATURE() being appropriate in the included context. */ +/* SAF-8-safe omitted inclusion guard */ #ifndef XEN_CPUFEATURE /* diff --git a/xen/include/public/errno.h b/xen/include/public/errno.h index 5a78a7607c..ccd5023c3a 100644 --- a/xen/include/public/errno.h +++ b/xen/include/public/errno.h @@ -17,6 +17,7 @@ * will unilaterally #undef XEN_ERRNO(). */ +/* SAF-8-safe omitted inclusion guard */ #ifndef XEN_ERRNO /*