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=-12.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 86E40C43381 for ; Fri, 15 Jan 2021 00:32:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B14E23AFD for ; Fri, 15 Jan 2021 00:32:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731343AbhAOAcS (ORCPT ); Thu, 14 Jan 2021 19:32:18 -0500 Received: from aserp2120.oracle.com ([141.146.126.78]:51304 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731328AbhAOAcO (ORCPT ); Thu, 14 Jan 2021 19:32:14 -0500 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 10F0FAJn024525; Fri, 15 Jan 2021 00:31:07 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=tpp23TTcS905xSBNUJ3I3+T2xpc999AWSyIQrUjVakI=; b=ttbobd2Rnzmgau77uQx5N4KO/UZKityrdKagicxXLHvE43cjOsh0BENxPOexSFUoALBe 7OIqV7F81qFz1XOoUy1tzOVlMo2LS8jWk5as2bWomMLzQB+H0OeCnFU39xA79qT0Ay+q VtVfu2+0PanU7Wo7BSlgotKwZZFEvoJUkFvplzVfYlMs2/DH3HxpG5Ti7rkjorlQus8U RBmbZxaaqbAB31MKxksdvt5R5l/AuNH9qXDQyTj/mbq1rQTUI/CLy8uLt22WKVxwFj0Q Bw5sUTmzUK9Cd4g+Dw2LNgaX0oQDlTU5zBjrQs+Q+EuBpQq7DdaCnI2mllBjQFZlWU5X aQ== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by aserp2120.oracle.com with ESMTP id 360kd02u5v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Jan 2021 00:31:07 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 10F0GGro137727; Fri, 15 Jan 2021 00:31:07 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserp3030.oracle.com with ESMTP id 360kf2tkfp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Jan 2021 00:31:07 +0000 Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 10F0V5St004164; Fri, 15 Jan 2021 00:31:05 GMT Received: from [10.39.240.226] (/10.39.240.226) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 14 Jan 2021 16:31:05 -0800 Subject: Re: [PATCH 13/21] x86/xen: Support objtool validation in xen-asm.S To: Josh Poimboeuf , x86@kernel.org Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , Sami Tolvanen , Sedat Dilek , Kees Cook , Nick Desaulniers , clang-built-linux@googlegroups.com, Miroslav Benes , Juergen Gross References: <77629463ea258e47d8d53bc8947da24dd2923931.1610652862.git.jpoimboe@redhat.com> From: boris.ostrovsky@oracle.com Organization: Oracle Corporation Message-ID: <46bd6b10-6d8a-1065-069e-565c45af7128@oracle.com> Date: Thu, 14 Jan 2021 19:31:03 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.6.1 MIME-Version: 1.0 In-Reply-To: <77629463ea258e47d8d53bc8947da24dd2923931.1610652862.git.jpoimboe@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9864 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 bulkscore=0 malwarescore=0 suspectscore=0 adultscore=0 spamscore=0 mlxlogscore=999 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101150000 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9864 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 phishscore=0 impostorscore=0 bulkscore=0 adultscore=0 suspectscore=0 malwarescore=0 lowpriorityscore=0 clxscore=1011 mlxlogscore=999 mlxscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101150000 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/14/21 2:40 PM, Josh Poimboeuf wrote: > The OBJECT_FILES_NON_STANDARD annotation is used to tell objtool to > ignore a file. File-level ignores won't work when validating vmlinux.o. > > Tweak the ELF metadata and unwind hints to allow objtool to follow the > code. > > Cc: Boris Ostrovsky > Cc: Juergen Gross > Signed-off-by: Josh Poimboeuf Reviewed-by: Boris Ostrovsky