From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by sourceware.org (Postfix) with ESMTPS id B13463851C34 for ; Tue, 7 Jul 2020 13:08:00 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org B13463851C34 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=mliska@suse.cz X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 2D132AF19; Tue, 7 Jul 2020 13:08:00 +0000 (UTC) Subject: Re: [PATCH] Use size_t for mallinfo fields. To: Andreas Schwab Cc: libc-alpha@sourceware.org References: <87tuyja59i.fsf@igel.home> From: =?UTF-8?Q?Martin_Li=c5=a1ka?= Message-ID: Date: Tue, 7 Jul 2020 15:07:59 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <87tuyja59i.fsf@igel.home> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP 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: Tue, 07 Jul 2020 13:08:01 -0000 On 7/7/20 2:17 PM, Andreas Schwab wrote: > On Jul 07 2020, Martin Liška wrote: > >> The current int type can easily overflow for allocation of more >> than 4GB. >> >> The following patch changes that to size_t. I guess I need to adjust >> the API version of the function, right? > > Not only that, it breaks the ABI of mallinfo. Sure, so what options do I have? I'm new to glibc so a hint would be appreciated. Thanks, Martin > > Andreas. >