From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM11-CO1-obe.outbound.protection.outlook.com (mail-co1nam11olkn2107.outbound.protection.outlook.com [40.92.18.107]) by sourceware.org (Postfix) with ESMTPS id 8FAF03858D1E for ; Tue, 8 Feb 2022 16:21:02 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 8FAF03858D1E ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=CPLNcHfvx4tqSO410+djAHdGMiSjp2s8B94Q1Ar/tS5WrmOoAVbMHqf0mLSqrErA1G9PHKOpFkO/jUp+DQUjgFL0W4E8cXMLw7JqmbAg+ai+AKB0SlngIc0Q2wuSea025273nu77op9fRwP0vVGmLZtwn1LCNaPgxja9LZ26Dq53cfXp9gmUkYeIIYJb9mxDlYVE5QJoNVk7OzBaJOAewVYtqlGdk8e1wP9KZEowAzikX1mTUW0ZPKoDZbxJBSd+Xp80j1tv1GC6pSOkM9qpwbgLRD9BEJd0gNH0N9pASkCtfOMVn9hck1XxEYesgZUTT2loiRU7u5BPUeJNtWrySw== 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=d53XOE2J+avMqSV1RwMlk+NdusRp+2LZ0nJakWpOhZY=; b=F5HtXeJXfmgvuJdJcWL600Ik9+OMyAKhVNRkOb5f04z51/vYQ7RQBYY/AGoZVVrAWXxqEdFHjbqUvwaP30cCG/Stv/M11a/nFDfaWNJy23rRfY8RYzKKRQ7nR0dNUqEzwic+B4dO+AMZyUrLiSe0jUbddjmEepkv50XI4GWlZbWkaz66tYUK/erwQvhE7Cp1gOs+OlCg86v/v10AHWmQ9hvQ/B3BL+o8PPa3V1WGTsYUAe6D80saCaLEm8CjkC9ZlWg1rCeXXYZ7CHF1ssWtOzqz/JaCanEhBvuEuJQEQniXhJ8a9AZnxX07dPsgwo/GqqnCF+Fn+f4KQvCotxmMhQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none; dmarc=none; dkim=none; arc=none Received: from DM6PR05MB4697.namprd05.prod.outlook.com (2603:10b6:5:18::13) by MN2PR05MB6624.namprd05.prod.outlook.com (2603:10b6:208:d8::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4975.11; Tue, 8 Feb 2022 16:21:00 +0000 Received: from DM6PR05MB4697.namprd05.prod.outlook.com ([fe80::8cf6:45d7:3839:6d8]) by DM6PR05MB4697.namprd05.prod.outlook.com ([fe80::8cf6:45d7:3839:6d8%4]) with mapi id 15.20.4975.011; Tue, 8 Feb 2022 16:20:59 +0000 From: unlvsur unlvsur To: "gcc-help@gcc.gnu.org" Subject: Why memcpy memmove memset are not weak symbol in libgcc? Thread-Topic: Why memcpy memmove memset are not weak symbol in libgcc? Thread-Index: AQHYHQeVHfRGLl0YK0Spu4Y7RZ22RA== Date: Tue, 8 Feb 2022 16:20:59 +0000 Message-ID: Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-tmn: [hxeRMhzwKeGFbjxYXTk+XMGr1mvoNPO6] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 4eb76de7-b02e-47e0-9f50-08d9eb1efe6f x-ms-traffictypediagnostic: MN2PR05MB6624:EE_ x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?us-ascii?Q?PuhJU2JeIWG+QswqcDqHrGKQdHwMZsa/qGeBxqW2LXuwnr/bpkN9S+4xMXc8?= =?us-ascii?Q?bvfDKWXQGFqAdqJO+zAFTFhMHAdfnB71O1kfFkZQoc2yjmlDZULf8WabX7rg?= =?us-ascii?Q?QJCsdmi8h9Q2MwqAPctEqxpIeYARz2x4tw47j905s1NEQuwtZc6QX4Bx0afw?= =?us-ascii?Q?gXCS2b8WMCuGaqmJEmCZwsLJhMHuXsu2iYRRkHyb4vRgv+PLwBdZVcAfjb79?= =?us-ascii?Q?gK/qhPlLWI5YDz9ulGQkPsDdHKeEHJhsocra0GB63a7fe0IfR1HawseqOyfX?= =?us-ascii?Q?a5ESYWcwx/zM7ebTrHjfX9CbUyTxFUeRp1xfrsdNv2+Y7z0A5XFqpM+9uwCV?= =?us-ascii?Q?ahFTHVv3NsJfNMi8LAB4wNcU7ZVS69iSdXHsJsMgHVh5ULgQw/QNXzagE2hV?= =?us-ascii?Q?9+ZWG2jGOuLcEd65TFlcaqj4gD2vA/JXY1y75Qh+FWURJ0POhxpaIjDRpnuB?= =?us-ascii?Q?NiP2h14wwHCNTzyWA/iGS+a7OdRFipDytfbxOiS9dGyn5ps5+hQN9qoFeUyN?= =?us-ascii?Q?r1Y8XHKEAng1TyXqGBYN963vuh81BUh651h/rr9ghbJP+cgEz11ivvNfWIot?= =?us-ascii?Q?lMfAB/hCt/mUPz3sLolH4+n0LO43JZwUQK9h8esgFwSeFNhDzetQ1cIeJBxS?= =?us-ascii?Q?2dWrnoWa77vIoTHjESd8i2sDtgEMo3+TPXPEtppslcSc0INkcNmwZFtymmeu?= =?us-ascii?Q?kXIDO5msdktjpVOtenEED4+YyQoDeAaRScHdUPH2iE8hPjIP4R78BDfL5wCP?= =?us-ascii?Q?wz8c1tW5g6NkST9G78RkPX3F+pETBdiC1EyvwpySNkShjinndMw4g/f2qaXw?= =?us-ascii?Q?Kj480wJSYNx23REV3V4LviB2BSpM/GfoGmbQSOjPODVVSaVa4J66PF/ZbIJJ?= =?us-ascii?Q?oD2mWHa6rx6SE+s/7yrUO7YrbgyVxOKlfniNbm3pVy4g9wqG1Tvfzs4kX+n2?= =?us-ascii?Q?qNX+fLkk0UER/GyXGC2AfXZlnPKTfOfJ+LVQJDSfjVY=3D?= MIME-Version: 1.0 X-OriginatorOrg: sct-15-20-4823-7-msonline-outlook-84f76.templateTenant X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM6PR05MB4697.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-Network-Message-Id: 4eb76de7-b02e-47e0-9f50-08d9eb1efe6f X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Feb 2022 16:20:59.9285 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR05MB6624 X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, HTML_MESSAGE, KAM_SHORT, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: gcc-help@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-help mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Feb 2022 16:21:06 -0000 I think they should be weak defined to allow implementation to override the= default implementation for a better implementation when it is impossible? Since copy data fast is highly environmental specific Get Outlook for Android