From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by sourceware.org (Postfix) with ESMTPS id 19F973858D1E for ; Sat, 1 Oct 2022 00:29:12 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 19F973858D1E Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=oracle.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=oracle.com Received: from pps.filterd (m0246627.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 28UM4WKZ001760; Sat, 1 Oct 2022 00:29:09 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=message-id : date : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding : mime-version; s=corp-2022-7-12; bh=8a4SG+lou0Y3NUrXlkXfocjj3RrlmiOiDeTfdlBRWOk=; b=sVPdFNSU4m+VvSIqcsGHRwqlUk2TftNMPf91/jP0GUhlPYltimRWnyCvMHtTUgj0CZK3 x4xbUuGkB0cU7u9qYkP3Ufp/ydbzmYzo7UG8puX7QL92KD3H6MA2G0LXAKPd1XXdO5OU dGTfEDM6fnAopL5NmjZLGMeeLBBIt+w4FJAxo/d8LcjsKXCzP3JMnhc2ou/+KdtE6AR0 aLBUk8+M7vFoppjJ1jVL0gurdy8iwOifhmrKQWaylmkbumirCv6taGuuSpY6MmmvC9OL DP+sH15ssuE91di3rJWIzQYGVsLm29xkigzif2YrMh2U8rZbw9/p6HVIpMLwyVPEwvsq Cg== Received: from iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta01.appoci.oracle.com [130.35.100.223]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3jssubs59v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 01 Oct 2022 00:29:09 +0000 Received: from pps.filterd (iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (8.17.1.5/8.17.1.5) with ESMTP id 28UNJ84b022361; Sat, 1 Oct 2022 00:29:07 GMT Received: from nam10-bn7-obe.outbound.protection.outlook.com (mail-bn7nam10lp2105.outbound.protection.outlook.com [104.47.70.105]) by iadpaimrmta01.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 3jtpvjkscj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 01 Oct 2022 00:29:07 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=FCmOtU4xE/96IJdAsoxAvPe+lN5l6UdyOohhOyxLE+1IeHCUDvmUa0MhZGt+kGvAUGR1eLAtpmUD45FwZT1sAEvVrk6jcV9dnnAoSgnx6cVb4/vGJn9OD3kEyCgrln6zXQOnQgWZq/u3svl92p+mtLLVl25bM/PJ1hvI1BiMj4QbERUtGo/hPI/S8A2kCs56OsQ8hc1QQ7F0xXcFpvQwwfYoOknNISRZInk3939aJs215aDcNCoMJnuXfQfpdwt54/Rw568kGlZm6SadORqTcTS51FTxzSN/8AVt5/lrXdZ66xULeXchAnJTRMSDAm8tQsQP5TmOdibQRXmEmFkA0g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=8a4SG+lou0Y3NUrXlkXfocjj3RrlmiOiDeTfdlBRWOk=; b=VKr1ZLm/xHw+95e2AD9WecUF1V5r4AVRxkTHsBokFVILjF8ouRwfqgCYZ5CaCiuB5IGnzn7OyvBE4gieVswKqK1R1XyfNYjzRmsX8Y4V/Z2Uia6OjjHrWP1FqzABk4Dh7tLEkoEpLci944uf1yPwXpOdkbDWwuCdEfqMDLP5e9NcrkxYDMb31Ng8MOgnaSclapNcZ6dvLQWSgxHSBsGF33jQSs5b//HiC11FhEqF2qbx/jZANLc24Jd1Zd45juW2Z1pu8FwX0yyFwkragcnkyiXHH7lT2krwiWJyyFAA9E2Q5Ud/sp9MpnxaHmy/19PA+npPZ7+d0S8VZHF3fspRiQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=8a4SG+lou0Y3NUrXlkXfocjj3RrlmiOiDeTfdlBRWOk=; b=mWQI5R60tShkpmzTxvrYUpYGrbnwQrLY8rgNb1YZ0ma67KBbCZQ4NNDB+eRkz7FOocCgOt/co6miXg0MVOPn7e/d/gYN8USaEVY6YKMxejKYV6s5NuS0EIbguc4PhkENU7Ymf8iLghXaxA8wR/gpEO1RvgF8WI+Ct6tgZQxMuzs= Received: from MWHPR1001MB2158.namprd10.prod.outlook.com (2603:10b6:301:2d::17) by SN7PR10MB6306.namprd10.prod.outlook.com (2603:10b6:806:272::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5654.25; Sat, 1 Oct 2022 00:29:06 +0000 Received: from MWHPR1001MB2158.namprd10.prod.outlook.com ([fe80::80a7:f7f3:4303:54e4]) by MWHPR1001MB2158.namprd10.prod.outlook.com ([fe80::80a7:f7f3:4303:54e4%5]) with mapi id 15.20.5676.017; Sat, 1 Oct 2022 00:29:06 +0000 Message-ID: <2095ab85-763b-ab7d-b7a9-e69af32a2f07@oracle.com> Date: Fri, 30 Sep 2022 17:29:04 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.1 Subject: Re: [PATCH,V1 00/14] Definition and support for SFrame unwind format Content-Language: en-US To: Nick Clifton , binutils@sourceware.org Cc: weimin.pan@oracle.com References: <20220930000440.1672106-1-indu.bhagat@oracle.com> <735c9acd-7ccb-2b84-8952-8ef106aa9057@redhat.com> From: Indu Bhagat In-Reply-To: <735c9acd-7ccb-2b84-8952-8ef106aa9057@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-ClientProxiedBy: MW4PR04CA0310.namprd04.prod.outlook.com (2603:10b6:303:82::15) To MWHPR1001MB2158.namprd10.prod.outlook.com (2603:10b6:301:2d::17) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWHPR1001MB2158:EE_|SN7PR10MB6306:EE_ X-MS-Office365-Filtering-Correlation-Id: 893cce8d-37e9-4a21-28cc-08daa343f301 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:MWHPR1001MB2158.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(136003)(346002)(39860400002)(366004)(396003)(376002)(451199015)(44832011)(6506007)(478600001)(107886003)(6486002)(53546011)(6512007)(5660300002)(26005)(41300700001)(186003)(66946007)(2906002)(2616005)(8676002)(66556008)(66476007)(316002)(8936002)(86362001)(38100700002)(31696002)(4326008)(36756003)(31686004)(43740500002)(45980500001);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?WjFrMWxJNis5a3RCV21OS0VWdEhRZXZJOTJja3dzTlU1RzBEV0tuQUpNM1h5?= =?utf-8?B?Ti9Ga0VKYWJZc1pkdFRodlFnUXFEWE5hY2xUaGZTU3NybWxoQktubHI2RjUx?= =?utf-8?B?QnhPU0hmR2YrbkN5ank2OC9Xd1JpTHFXYllpeUw1SS92NUpOWmtRT3lkblFK?= =?utf-8?B?ZTBrSy9LMm5Ka3VRd0RhT3FTZE90RDFyVlN0Y2ZhTDZJUEg4N0dpQTJJUkVK?= =?utf-8?B?Q3Y0T0FYT3BCam15SzEyMElrOFNZRXhZZXl4YnlQaXQvMUtjbzlIaS9LSEd6?= =?utf-8?B?Z1pOMFFNTjlhYkhSNDA1MUxsY2RWZ2xnOXpITy9xTGhsMWFGSTVPNFNIc2Jo?= =?utf-8?B?WVdFT2ZLTExwa2JndVY0bEkyNWttUGNrbFRrcmc5eFJ1ZzUrYSs3Sk1MZFlt?= =?utf-8?B?V2RMaFB5ZFNxUG9xWWkxNXVWZW9ZaXd6eW5vckdJOGk2MFFSdzZuZ3U1QnFT?= =?utf-8?B?c1poanl5MGZLT0JSMm1ZdVBkYnNiQ29pNEt6b0pxYW9nSEx1VDMyY2w1dExC?= =?utf-8?B?Ni9WV0dWZWtxQ2x5WGRtY2g2TXNwU1k3UG0vV3dPdmliSTJQNGlwQUovenVk?= =?utf-8?B?bzdvb1RYWlZWWDdyMzdETmVrT1ppUHp5OHFYRDlOL2c4RVlXbXE5dXJWQlZM?= =?utf-8?B?OFdpVytZYXhtczYwcEJrSExUaGx4ekpJMTgrZnY0YjZESFRDYkhHanpXVHhk?= =?utf-8?B?aEVCUk0yVTB5c04zbDlUd2IzdHdidlY2Yk8xSnFaYTYvOVY0RzFnNDNSL0dU?= =?utf-8?B?VFFkNDlTVXVybGVEUzUyNUY1eXFkNENEaVhsK3AyaDErZS9hRGVyQmVQMzhP?= =?utf-8?B?N0lTcnZoa0VGaTYrVjIySlRncDdhRjZMbWc4S0JHdWZvb2h3bkp4Vkl2OHN0?= =?utf-8?B?V24xbTZNMTlCUEFtVlBCeGlVT1ArbHorTCsxemo3VGhoSWJuMWJaOUNIQnQ4?= =?utf-8?B?OEhuM21DTXU3S2VNMWVuTXlXRFFDSHQ4eXJ6VTdkYVUrTU1RamhMeFVOTlp0?= =?utf-8?B?TVFncXd4VE05ZkVpVWErZnhDMHRnZXlOZnd1Uk1YYit1enRjT0pIU1lINnc5?= =?utf-8?B?OExkZHRLMnpGRzBvNlMrTTNtUm85aWpFcHR4b0RvQVRHUGo2OGtRNHcxL3BE?= =?utf-8?B?d1JET0xCdjNRNWtlVVRoNXphYld6OWNPZHlHUmwxZlFuSndIUTU2aFhsU0kz?= =?utf-8?B?RXlOSkFDMytZcHlQaUhWUU9XejhWbVp5VnVaMXdqWnFqNEFwR25xaGlQZXFB?= =?utf-8?B?eXV1bGgvSWxybElaZnhhejBxSU9zMjZTZHEySmFWTndOK1VPYjhNdGEyQ2dV?= =?utf-8?B?c1NsV2RBV2QwS1R1bEQzdHNtZi9LUndVNkp6NGJkQU1nRHJjRkZvdlRQb0h1?= =?utf-8?B?VmU5S1IyRFVsVHl0aFdSYmRPdGRld0Jkc0M2NHRIYktTa21Ic2tXbDhuUHRn?= =?utf-8?B?WTdUV2t3WC9ZY3VDRng5SkN3OEE4TjczNFhyK3hUM216S2VTMUtTd2pBYkR4?= =?utf-8?B?eWVoVVhPTTlkTTFBdEthV3cyWkxYVUViRkFNZFVWZy8vcXNZeklwVVlleXN6?= =?utf-8?B?MjlkbWlvc0padTYrQlBnbzRpcjliNnl2UmVKaEFpSlE3TWpFZVhYN3lhbDV3?= =?utf-8?B?UHFFQUFWMGVRL0xXbXpCTTRRaG8rU29IdGNRc2NodTgxUzlHWDNoa0hBK1lO?= =?utf-8?B?QlF4K2VaNWhybWN4QjBqVDVheEJJNWY0K0pQNk1yVUdDdHZ6QW5pY0hEclJZ?= =?utf-8?B?ank4Mm5jUFpkcWI3WFR0SUY4d1hVN3l1azlnek9wUlhUdlB2Ui9sbkFwRFVQ?= =?utf-8?B?NmZaRi91cTdzL0hDSG85VG9Dd3RndHNUK0VqMk1MbnV3eWNReVlvNkZYdmFM?= =?utf-8?B?cnJTRWorSWdLRkp2Z0psTFNhQjh6a0d4d1VUOUU5RzhWSmU3NWFrL3FNaytw?= =?utf-8?B?Uy9udk4za2dSK3pIOGZzVy96NVNia0NkZjBpdktTckxDN0N0Nm9oWXNVb2VE?= =?utf-8?B?d3BCQ0cxei8ycUFIZzlyVEJFd0J6V1lmcDI2cEtBMFpHRzNnSFBtdGRQOFcz?= =?utf-8?B?ZFVFcDVNS3RRQzJrb0ptazVEczNuVHpRenA0eFI2czRNdFR2cWJQZWtCWm1l?= =?utf-8?Q?kiz7G5QnH7sUG31V1xA+jSESA?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 893cce8d-37e9-4a21-28cc-08daa343f301 X-MS-Exchange-CrossTenant-AuthSource: MWHPR1001MB2158.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Oct 2022 00:29:06.2672 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: +mNoshqKVCRhLf7vwEu6XGBsRBFUdENhP/Qa0ohwNwXLA0+z2xG5jvTZW+Eiwdql+7z/4wyyqOFn+lhLx/j5Rg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR10MB6306 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.528,FMLib:17.11.122.1 definitions=2022-09-30_05,2022-09-29_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 malwarescore=0 suspectscore=0 adultscore=0 mlxscore=0 spamscore=0 bulkscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210010000 X-Proofpoint-GUID: 9idMTcPcD_VkgAGYgpkmfXViLVrYGSBu X-Proofpoint-ORIG-GUID: 9idMTcPcD_VkgAGYgpkmfXViLVrYGSBu X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 9/30/22 02:12, Nick Clifton wrote: > Hi Indu, > >> The format specification document still mains a TODO at this time. I >> plan to >> resume working on this after I have tackled the task of SFrame >> generation for >> PLT/veneers in aarch64. > > I am concerned about this.  If you do not have a specification then it > is going > to be hard to get the format adopted by third parties.  I assume that > you would > like tools such as LLVM to support the format, as well as projects like the > Linux kernel.  Maybe other commercial interests or academic endeavours. > None of > them are going to take the format seriously if there isn't a specification. > Noted. Let me see how I can get this done sooner. > >> The information stored >> in the .sframe section is a subset of what .eh_frame can convey: >> .eh_frame can >> convey how to resurrect all callee-saved registers, if need be; but >> .sframe >> does not. > > Is it possible to convert existing .eh_frame sections into equivalent > .sframe > sections ? > It should be possible with additional tooling, yes. Thanks > Cheers >   Nick >