From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from EUR03-DB5-obe.outbound.protection.outlook.com (mail-eopbgr40065.outbound.protection.outlook.com [40.107.4.65]) by sourceware.org (Postfix) with ESMTPS id 38B9A3846454 for ; Fri, 5 Mar 2021 19:01:54 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 38B9A3846454 Received: from DB6P18901CA0017.EURP189.PROD.OUTLOOK.COM (2603:10a6:4:16::27) by PAXPR08MB6527.eurprd08.prod.outlook.com (2603:10a6:102:156::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3912.17; Fri, 5 Mar 2021 19:01:50 +0000 Received: from DB5EUR03FT006.eop-EUR03.prod.protection.outlook.com (2603:10a6:4:16:cafe::4c) by DB6P18901CA0017.outlook.office365.com (2603:10a6:4:16::27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3912.17 via Frontend Transport; Fri, 5 Mar 2021 19:01:50 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 63.35.35.123) smtp.mailfrom=arm.com; sourceware.org; dkim=pass (signature was verified) header.d=armh.onmicrosoft.com;sourceware.org; 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 DB5EUR03FT006.mail.protection.outlook.com (10.152.20.106) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3912.17 via Frontend Transport; Fri, 5 Mar 2021 19:01:50 +0000 Received: ("Tessian outbound 155e15b2e217:v71"); Fri, 05 Mar 2021 19:01:50 +0000 X-CheckRecipientChecked: true X-CR-MTA-CID: 3d3c3056c1699c4e X-CR-MTA-TID: 64aa7808 Received: from 0243218a88a2.1 by 64aa7808-outbound-1.mta.getcheckrecipient.com id D4D7D542-2FFD-4FEE-A288-A4FE4EB38D06.1; Fri, 05 Mar 2021 19:01:44 +0000 Received: from EUR04-DB3-obe.outbound.protection.outlook.com by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id 0243218a88a2.1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384); Fri, 05 Mar 2021 19:01:44 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=TieHxe1r99/0YGfuNCHwXNJOZVztgBHG5beZ4SFvopc39PVAUuDt/53BxdVWrTG9mYDaKAPXnNE7s5/as889KvizNvyYPRis9sa8n1KrUbzjwECeZsoQeGALJsSqRf+bZcDf/qzociDu4YePOMAnFBTMVYfVZb7dMYsbwXXkc8ql27lqJqhSTLfFHKJ9rowERx7DwI1YSlGDHBuIXoKpEPN1jPKmtXzWnEbcnaGjdcQDhmWnMN7VX/mOvAhI+I3G3WezVxOaCXmI0IwvfIpKR42koXcTfDFAgVLkplBco1Hwdjg3hgrj5x4j8uoVKuh/462bTp3yFQezgGgJfpqJKg== 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-SenderADCheck; bh=LmPG3Z0HAq+9S6dBQZvO6HZrQt2hjrETVYXYOp8sFS0=; b=NiCdAarJx7jpD28I2g8wPN1Bg+bQxsMU6dQq952Bpqbwk6wF+JAYDgYc4PuaWyXoNeo1IZuQoaseSSSMfdgZnxyat3RbUUfrY121j5LoxNvcQLPJt5pCsHzsJRBCU2nT3p2U3bDV3zB+VK3A8XefdZxnRSTUdgpfrQOgsHoNyHeaztllbAByj18t8jPnhyFzUOiI64aXELr2mZgx9kMgG+ONd9qMdNFDbCneM+CdP68L5XWG0Fu5PnIfwZaVWYgM/Eorh23NHbG8idoQ8SBjBHwFmcGaWm1xGYzNa9wsQrsA3vs/6Z0QlSGkJGEdGuYphqbY7FNM9tE0hZsHS52SsQ== 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 Received: from VE1PR08MB5599.eurprd08.prod.outlook.com (2603:10a6:800:1a1::12) by VI1PR08MB3104.eurprd08.prod.outlook.com (2603:10a6:803:42::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3890.28; Fri, 5 Mar 2021 19:01:37 +0000 Received: from VE1PR08MB5599.eurprd08.prod.outlook.com ([fe80::385c:f8ff:ee16:3a4d]) by VE1PR08MB5599.eurprd08.prod.outlook.com ([fe80::385c:f8ff:ee16:3a4d%6]) with mapi id 15.20.3912.022; Fri, 5 Mar 2021 19:01:36 +0000 From: Wilco Dijkstra To: "dj@redhat.com" CC: 'GNU C Library' Subject: [PATCH 06/16] malloc: Ensure the generic mtag hooks are not used Thread-Topic: [PATCH 06/16] malloc: Ensure the generic mtag hooks are not used Thread-Index: AQHXEfE5USvqYzYOdE++PvK6ErtlxQ== Date: Fri, 5 Mar 2021 19:01:36 +0000 Message-ID: Accept-Language: en-GB, en-US Content-Language: en-GB X-MS-Has-Attach: X-MS-TNEF-Correlator: Authentication-Results-Original: redhat.com; dkim=none (message not signed) header.d=none;redhat.com; dmarc=none action=none header.from=arm.com; x-originating-ip: [82.24.249.100] x-ms-publictraffictype: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 236e0614-e3fb-404d-0e61-08d8e009221f x-ms-traffictypediagnostic: VI1PR08MB3104:|PAXPR08MB6527: X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true nodisclaimer: true x-ms-oob-tlc-oobclassifiers: OLM:3826;OLM:3826; X-MS-Exchange-SenderADCheck: 1 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:VE1PR08MB5599.eurprd08.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(396003)(39850400004)(366004)(376002)(136003)(346002)(7696005)(8936002)(2906002)(26005)(71200400001)(6506007)(76116006)(52536014)(66446008)(64756008)(66556008)(66476007)(5660300002)(4744005)(6916009)(66946007)(55016002)(33656002)(86362001)(478600001)(186003)(9686003)(316002)(4326008)(91956017)(8676002)(41533002); DIR:OUT; SFP:1101; x-ms-exchange-antispam-messagedata: =?iso-8859-1?Q?voCo+HZJAfZWmC9PDva5niwk/wyRXXY+22P+ULzmFFgkigfyffsz5xmpwx?= =?iso-8859-1?Q?tJP3vxmKrNQhPHKRSksS7kzamh23RRo8xnWFFzYQ7Jhbvt8/wsZBzI+0c0?= =?iso-8859-1?Q?AwXRTFTTvUppGfoUfwlJyGG8JbMD8G4181Mqd4HmL7GN6U2dQs9QDDdl4h?= =?iso-8859-1?Q?KfHoJXflGfXMjLpf2jUQFGkuA3CL6W9BARE4neaT2HDGwoU8iFHgjQ5wmY?= =?iso-8859-1?Q?wf84Bqke4hM30lNn0sFtCaM2fptGyr50pzfgCABctdPD7ionhxfmht4ZID?= =?iso-8859-1?Q?AyUUb5u8v2id7x2Yz/aqTDBYDgUxXvXvjGjTWwhrNsoHBe+MCuYMIfG/2Q?= =?iso-8859-1?Q?nJpASqQDAeQanYndWK2x8Uy4Hm/bU4T8vYdvkraa14GfJUtoVhHDXus7Ac?= =?iso-8859-1?Q?5xUANfNBvtXTirTAtNNMe6bAXlwvee6/HckyGZe205prE5e62z5l6keXuW?= =?iso-8859-1?Q?v7AMg6i7GTH/zfCHUU0sitUpzxpIZw+jXmT3PT64V4MZ3Gu2jIbyhOM1ZN?= =?iso-8859-1?Q?p2td8ktabcqs8spmMLWA578NZYivpy06ZaGg5V84uFDraBqwDSD6tLJoVg?= =?iso-8859-1?Q?WzfVzmfm6XNbI10PGg4mj1b0rBOiLAoyVY6vCcbdKiL1SvLUuNAIHJJpxf?= =?iso-8859-1?Q?3LlZfJkapxppx9RD+zp6lztflCUCsC2UdHPEaKUIx/f9Otvyo+hm6RXQml?= =?iso-8859-1?Q?vRqv79UCFxQA3c31K6NHWr3Wxs7unGBL4dLx9aozz/vFO8ZCe3d1+/lFdf?= =?iso-8859-1?Q?2MbGlHTbd+vvL5jpT6o1Vig4zi6Q/iOYKOXiCUpz3mJ3u+nLbxtxTYyvzn?= =?iso-8859-1?Q?o9aATCwmDWSZNm7fnIOhdDlQ91GRV/rn2Lt3QK71TwLkQ6bM2uyGlUe97Z?= =?iso-8859-1?Q?N9ZcWJozUJiEWZA+wkZSPf5vl/l91DWWAUu1sucEUvTQQXzMZU3IFmibnt?= =?iso-8859-1?Q?NhzeMejWjnChNClPOzBXJ+EUoXZnd+2DeecDcXvra2Obfc+eclAOqhZtTP?= =?iso-8859-1?Q?92UoKaOiX4Hnaey0i5yKSiVQwCs5oFo7MlCVbmwaoz/iF1aM2bU4b9X+EY?= =?iso-8859-1?Q?zJS7YyciwygmF3uK1MKxXWYF1HvpEuGbS/osrUaChobQgralvnvyoZiDJ6?= =?iso-8859-1?Q?amH7YGnU/oUfPJ+xNFrdg/knPWAWqHPjXy/mzsz12+bhNA14bdDt4vHhpT?= =?iso-8859-1?Q?MGZM+GDlQAuL5YXjFcsUGwsbtpqebHRhbny8VJcDVKLzV1ZacYvo3ow35n?= =?iso-8859-1?Q?vVTttxNcN1mHpzmAWihBVeS/aevOrwA9v5d3vpe2xy9MbxmOwoGETYq2ks?= =?iso-8859-1?Q?3mmRDRM+qAVWy+yvlzSV3/7IF+eHm1RCuyk7l9IURNV80RY=3D?= x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB3104 Original-Authentication-Results: redhat.com; dkim=none (message not signed) header.d=none;redhat.com; dmarc=none action=none header.from=arm.com; X-EOPAttributedMessage: 0 X-MS-Exchange-Transport-CrossTenantHeadersStripped: DB5EUR03FT006.eop-EUR03.prod.protection.outlook.com X-MS-Office365-Filtering-Correlation-Id-Prvs: 80de107f-720b-4f7b-fb0e-08d8e00919cb 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:(4636009)(376002)(396003)(39850400004)(346002)(136003)(36840700001)(46966006)(82310400003)(8936002)(47076005)(5660300002)(316002)(336012)(33656002)(36860700001)(52536014)(2906002)(81166007)(82740400003)(55016002)(86362001)(9686003)(26005)(478600001)(4744005)(8676002)(4326008)(7696005)(6862004)(186003)(70206006)(6506007)(356005)(70586007)(41533002); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Mar 2021 19:01:50.4633 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 236e0614-e3fb-404d-0e61-08d8e009221f 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: DB5EUR03FT006.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAXPR08MB6527 X-Spam-Status: No, score=-6.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, RCVD_IN_DNSWL_NONE, 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, 05 Mar 2021 19:01:57 -0000 Hi DJ,=0A= =0A= >>=A0No this works fine. -O0 optimizes if (0) like you'd expect. You do nee= d a bit=0A= >>=A0of hacking to do it, I tried:=0A= >=0A= > Did you try it on the oldest version of gcc that glibc still supports?=0A= =0A= No, but since this is not an officially supported option (-O0 always gives = an error),=0A= I don't see how that matters until -O0 becomes officially supported.=0A= =0A= Cheers,=0A= Wilco=