From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from EUR03-AM5-obe.outbound.protection.outlook.com (mail-eopbgr30070.outbound.protection.outlook.com [40.107.3.70]) by sourceware.org (Postfix) with ESMTPS id 59E7D3856277 for ; Fri, 22 Apr 2022 08:13:01 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 59E7D3856277 Received: from AM7PR02CA0013.eurprd02.prod.outlook.com (2603:10a6:20b:100::23) by VI1PR08MB4286.eurprd08.prod.outlook.com (2603:10a6:803:f6::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5164.20; Fri, 22 Apr 2022 08:12:57 +0000 Received: from AM5EUR03FT054.eop-EUR03.prod.protection.outlook.com (2603:10a6:20b:100:cafe::4d) by AM7PR02CA0013.outlook.office365.com (2603:10a6:20b:100::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5186.15 via Frontend Transport; Fri, 22 Apr 2022 08:12:57 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 63.35.35.123) smtp.mailfrom=arm.com; dkim=pass (signature was verified) header.d=armh.onmicrosoft.com;dmarc=pass action=none header.from=arm.com; Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 63.35.35.123 as permitted sender) receiver=protection.outlook.com; client-ip=63.35.35.123; helo=64aa7808-outbound-1.mta.getcheckrecipient.com; Received: from 64aa7808-outbound-1.mta.getcheckrecipient.com (63.35.35.123) by AM5EUR03FT054.mail.protection.outlook.com (10.152.16.212) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5186.14 via Frontend Transport; Fri, 22 Apr 2022 08:12:57 +0000 Received: ("Tessian outbound ab7864ef57f2:v118"); Fri, 22 Apr 2022 08:12:57 +0000 X-CheckRecipientChecked: true X-CR-MTA-CID: cf96e5a833ff1cd1 X-CR-MTA-TID: 64aa7808 Received: from 20a1a1677c18.1 by 64aa7808-outbound-1.mta.getcheckrecipient.com id 86436C21-07E4-42FB-A0BF-777A68FB23A3.1; Fri, 22 Apr 2022 08:12:50 +0000 Received: from EUR05-VI1-obe.outbound.protection.outlook.com by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id 20a1a1677c18.1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384); Fri, 22 Apr 2022 08:12:50 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=nuDiPAlhGI1iaj6r8dX9+qYg//4+WFKKaqawf9XvHH0n0qVjY7i2jGbfY2WIqfk3vLLeTBTh3qFIZtmeSkgw64ZFO8wOnVwDESTcdrrEy+ZSQJixetDeb2umtMhR0GBTwsNB/oqtG9A7l42RO1snPYiMORrti8e6NjTVi7UF5bUbeKnvq5lLrLLw7azSXKm01IVNuyZq8j6GDUvRa4q1Mz3FOsOR5O5HW9yrjl4viSnlUcnZye4xwu2HpLjAGo27Kh0ir6RcJdbV40t+BQj91MPY5t/XIFTKxqqTSYwMIEhW0/zFB89Ylv6TzbR03rjZ1mImTZGc43g6VXj59fQD3A== 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=M78q1GWBUmaXw5FeONT7+b559dih682CYUd9X7GMp/E=; b=DEDAnmEG9gR7cdHUhqOnddLf81RVVY4ZIxBp9SwXlVwdjZtKB2r1tUZaG+e+lMEq7ewAQ88xU1iq/aBLTt7CMMtxVWoby//pMlNONYFxZgVokkrhmrt+b9AaVUd8RoPQc009qPc0ilvcAy/r6WbtuWyAeOZfRyw4KLkLPXjVNhZveGi1xsNggG2M48MzfoxMjz7qtRzjnZO1339bMoWn96/712xdQJr45UbjRDg8W5IDWLFY4KxasVxc2hupvMgf5k3CgOiEy84GhCvNV4VxYBqOmQ4aUqpUUa8jFg0T/qo1TA01var7Dtvoqa9qACvk3RKafotwjfOuoDXcxJM2hA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=arm.com; dmarc=pass action=none header.from=arm.com; dkim=pass header.d=arm.com; arc=none Authentication-Results-Original: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=arm.com; Received: from VI1PR08MB3919.eurprd08.prod.outlook.com (2603:10a6:803:c4::31) by AM0PR08MB5170.eurprd08.prod.outlook.com (2603:10a6:208:15c::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5186.14; Fri, 22 Apr 2022 08:12:48 +0000 Received: from VI1PR08MB3919.eurprd08.prod.outlook.com ([fe80::7080:6233:cf8f:a8a6]) by VI1PR08MB3919.eurprd08.prod.outlook.com ([fe80::7080:6233:cf8f:a8a6%7]) with mapi id 15.20.5186.015; Fri, 22 Apr 2022 08:12:47 +0000 Message-ID: Date: Fri, 22 Apr 2022 09:12:44 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH, v2] [AArch64] MTE corefile support Content-Language: en-US To: Eli Zaretskii Cc: gdb-patches@sourceware.org References: <20220331140343.9047-1-luis.machado@arm.com> <20220421152040.128278-1-luis.machado@arm.com> <83pmlaqvrl.fsf@gnu.org> From: Luis Machado In-Reply-To: <83pmlaqvrl.fsf@gnu.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: LO2P123CA0010.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:a6::22) To VI1PR08MB3919.eurprd08.prod.outlook.com (2603:10a6:803:c4::31) MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: d37dc86e-c17b-4199-f46d-08da2437e903 X-MS-TrafficTypeDiagnostic: AM0PR08MB5170:EE_|AM5EUR03FT054:EE_|VI1PR08MB4286:EE_ X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:VI1PR08MB3919.eurprd08.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230001)(4636009)(366004)(66946007)(8676002)(83380400001)(53546011)(86362001)(66476007)(66556008)(508600001)(2906002)(4326008)(8936002)(5660300002)(31696002)(186003)(2616005)(44832011)(6486002)(36756003)(38100700002)(31686004)(6512007)(6506007)(6666004)(316002)(26005)(6916009)(45980500001)(43740500002); DIR:OUT; SFP:1101; X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR08MB5170 Original-Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=arm.com; X-EOPAttributedMessage: 0 X-MS-Exchange-Transport-CrossTenantHeadersStripped: AM5EUR03FT054.eop-EUR03.prod.protection.outlook.com X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id-Prvs: f788c9cc-c351-4223-b722-08da2437e2b1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:63.35.35.123; CTRY:IE; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:64aa7808-outbound-1.mta.getcheckrecipient.com; PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com; CAT:NONE; SFS:(13230001)(4636009)(36840700001)(40470700004)(46966006)(36860700001)(6506007)(53546011)(26005)(47076005)(336012)(186003)(31686004)(316002)(8936002)(82310400005)(6862004)(8676002)(4326008)(5660300002)(6512007)(70206006)(70586007)(6666004)(2906002)(81166007)(86362001)(36756003)(356005)(83380400001)(2616005)(40460700003)(6486002)(508600001)(44832011)(31696002)(43740500002); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Apr 2022 08:12:57.7029 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d37dc86e-c17b-4199-f46d-08da2437e903 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: AM5EUR03FT054.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB4286 X-Spam-Status: No, score=-13.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, NICE_REPLY_A, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS, TXREP, UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Apr 2022 08:13:03 -0000 Hi Eli, On 4/21/22 16:52, Eli Zaretskii wrote: >> Date: Thu, 21 Apr 2022 16:20:40 +0100 >> NoDisclaimer: true >> From: Luis Machado via Gdb-patches >> >> diff --git a/gdb/NEWS b/gdb/NEWS >> index 760cb2b7abc..885b3929d84 100644 >> --- a/gdb/NEWS >> +++ b/gdb/NEWS >> @@ -3,6 +3,10 @@ >> >> *** Changes since GDB 12 >> >> +* GDB now supports dumping memory tag data for AArch64 MTE. It also supports >> + reading memory tag data for AArch64 MTE from core files generated by >> + the gcore command or the Linux kernel. >> + > > I think this should say something about the significance of this > feature. Otherwise it is completely unclear why would GDB want to > support that. > > Same comment for the addition to the manual. > > Thanks. It is a bit short. How about the following additional paragraph? "When a process uses memory-mapped pages protected by memory tags (for example, AArch64 MTE), this additional information will be recorded in the core file in the event of a crash or if GDB generates a core file from the current process state. The memory tag data will be used so developers can display the memory tags from a particular memory region, and will also be used to show a detailed message about a crash that happened due to a memory tag violation."