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Lu" , Richard Earnshaw , Richard Earnshaw Subject: Re: [PATCH v3 2/8] elf: Add a tunable to control use of tagged memory Message-ID: <20201127103403.GT20578@arm.com> References: <23a8ad00-a376-48ae-cc6a-2684261146a1@foss.arm.com> <6173c59d-ee67-9499-ac61-c2dd37b56c67@foss.arm.com> <3b69bc46-df40-f9ad-b76b-b69483b0934c@foss.arm.com> <20201126172056.GQ20578@arm.com> <20201126180612.GR20578@arm.com> <87a6v40ycf.fsf@igel.home> Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <87a6v40ycf.fsf@igel.home> User-Agent: Mutt/1.9.4 (2018-02-28) X-Originating-IP: [217.140.106.54] X-ClientProxiedBy: LO2P265CA0349.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:d::25) To PR3PR08MB5564.eurprd08.prod.outlook.com (2603:10a6:102:87::18) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from arm.com (217.140.106.54) by LO2P265CA0349.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:d::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3611.20 via Frontend Transport; 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PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com; CAT:NONE; SFS:(4636009)(396003)(136003)(376002)(346002)(39860400002)(46966005)(54906003)(16526019)(316002)(44832011)(55016002)(5660300002)(956004)(33656002)(8676002)(8936002)(478600001)(186003)(26005)(7696005)(336012)(966005)(2616005)(4326008)(6862004)(4744005)(47076004)(8886007)(86362001)(2906002)(82310400003)(81166007)(70586007)(82740400003)(70206006)(36756003)(1076003)(356005); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Nov 2020 10:34:18.9970 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bed1a6d8-f85c-4d13-3e1c-08d892bfff26 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: DB5EUR03FT019.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB7PR08MB3498 X-Spam-Status: No, score=-8.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, MSGID_FROM_MTA_HEADER, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS, TXREP, UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Nov 2020 10:34:23 -0000 The 11/26/2020 19:25, Andreas Schwab wrote: > On Nov 26 2020, Szabolcs Nagy via Libc-alpha wrote: > > > marked binaries will depend on a new glibc, we > > currently don't have a way to do an abi bump > > on a binary such that old glibc rejects it > > EI_ABIVERSION that does not work for the exe unless this bug got fixed: https://sourceware.org/legacy-ml/libc-alpha/2019-06/msg00731.html we want to abi bump kernel loaded binaries too.