From nobody Mon Feb 9 19:54:14 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=fail(p=none dis=none) header.from=arm.com Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1670254893170974.073601429959; Mon, 5 Dec 2022 07:41:33 -0800 (PST) Received: from list by lists.xenproject.org with outflank-mailman.453954.711633 (Exim 4.92) (envelope-from ) id 1p2Dal-0004bk-J2; Mon, 05 Dec 2022 15:41:15 +0000 Received: by outflank-mailman (output) from mailman id 453954.711633; Mon, 05 Dec 2022 15:41:15 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1p2Dal-0004bL-ED; Mon, 05 Dec 2022 15:41:15 +0000 Received: by outflank-mailman (input) for mailman id 453954; Mon, 05 Dec 2022 15:41:13 +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 1p2Daj-0003Gt-9q for xen-devel@lists.xenproject.org; Mon, 05 Dec 2022 15:41:13 +0000 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by se1-gles-flk1.inumbo.com (Halon) with ESMTP id 3e23b94c-74b3-11ed-8fd2-01056ac49cbb; Mon, 05 Dec 2022 16:41:11 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5231B1515; Mon, 5 Dec 2022 07:41:17 -0800 (PST) Received: from e125770.cambridge.arm.com (e125770.cambridge.arm.com [10.1.195.16]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 67C233F73D; Mon, 5 Dec 2022 07:41:09 -0800 (PST) X-Outflank-Mailman: Message body and most headers restored to incoming version 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: 3e23b94c-74b3-11ed-8fd2-01056ac49cbb From: Luca Fancellu To: xen-devel@lists.xenproject.org Cc: bertrand.marquis@arm.com, wei.chen@arm.com, Andrew Cooper , George Dunlap , Jan Beulich , Julien Grall , Stefano Stabellini , Wei Liu Subject: [PATCH v2 5/5] xen: Justify linker script defined symbols in include/xen/kernel.h Date: Mon, 5 Dec 2022 15:40:52 +0000 Message-Id: <20221205154052.14191-6-luca.fancellu@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221205154052.14191-1-luca.fancellu@arm.com> References: <20221205154052.14191-1-luca.fancellu@arm.com> X-ZM-MESSAGEID: 1670254893957100005 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Eclair and Coverity found violation of the MISRA rule 8.6 for the symbols _start, _end, start, _stext, _etext, _srodata, _erodata, _sinittext, _einittext which are declared in xen/include/xen/kernel.h. All those symbols are defined by the liker script so we can deviate from the rule 8.6 for these cases. Signed-off-by: Luca Fancellu Reviewed-by: Stefano Stabellini Acked-by: Jan Beulich --- v2 changes: - add R-by and Ack-by (Stefano, Jan) --- --- docs/misra/safe.json | 9 +++++++++ xen/include/xen/kernel.h | 4 ++++ 2 files changed, 13 insertions(+) diff --git a/docs/misra/safe.json b/docs/misra/safe.json index e079d3038120..e3c8a1d8eb36 100644 --- a/docs/misra/safe.json +++ b/docs/misra/safe.json @@ -3,6 +3,15 @@ "content": [ { "id": "SAF-0-safe", + "analyser": { + "eclair": "MC3R1.R8.6", + "coverity": "misra_c_2012_rule_8_6_violation" + }, + "name": "Rule 8.6: linker script defined symbols", + "text": "It is safe to declare this symbol because it is defin= ed in the linker script." + }, + { + "id": "SAF-1-safe", "analyser": {}, "name": "Sentinel", "text": "Next ID to be used" diff --git a/xen/include/xen/kernel.h b/xen/include/xen/kernel.h index 8cd142032d3b..f1a7713784fc 100644 --- a/xen/include/xen/kernel.h +++ b/xen/include/xen/kernel.h @@ -65,24 +65,28 @@ 1; \ }) =20 +/* SAF-0-safe */ extern char _start[], _end[], start[]; #define is_kernel(p) ({ \ char *__p =3D (char *)(unsigned long)(p); \ (__p >=3D _start) && (__p < _end); \ }) =20 +/* SAF-0-safe */ extern char _stext[], _etext[]; #define is_kernel_text(p) ({ \ char *__p =3D (char *)(unsigned long)(p); \ (__p >=3D _stext) && (__p < _etext); \ }) =20 +/* SAF-0-safe */ extern const char _srodata[], _erodata[]; #define is_kernel_rodata(p) ({ \ const char *__p =3D (const char *)(unsigned long)(p); \ (__p >=3D _srodata) && (__p < _erodata); \ }) =20 +/* SAF-0-safe */ extern char _sinittext[], _einittext[]; #define is_kernel_inittext(p) ({ \ char *__p =3D (char *)(unsigned long)(p); \ --=20 2.17.1