From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-Status: No, score=-5.2 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS, SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 8F5551F4B4 for ; Sat, 2 Jan 2021 02:30:58 +0000 (UTC) Received: from localhost ([::1]:45934 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kvWgz-0002RI-7d for normalperson@yhbt.net; Fri, 01 Jan 2021 21:30:57 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39046) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kvWgt-0002QF-M4 for bug-gnulib@gnu.org; Fri, 01 Jan 2021 21:30:51 -0500 Received: from mout.kundenserver.de ([212.227.126.187]:40575) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kvWgq-0002vO-Ak for bug-gnulib@gnu.org; Fri, 01 Jan 2021 21:30:51 -0500 Received: from [192.168.101.10] ([91.12.160.30]) by mrelayeu.kundenserver.de (mreue012 [212.227.15.167]) with ESMTPSA (Nemesis) id 1M8k65-1kzdQ4274D-004hgY; Sat, 02 Jan 2021 03:30:45 +0100 Subject: Re: test-getgroups.c:stringop-overflow warning on newer GCC To: Bruno Haible References: <2887419.1QkhuepXuh@omega> <1825823.qd5lRurjMP@omega> From: Bernhard Voelker Message-ID: <1918dba0-3f35-795d-df2c-48e107f725ea@bernhard-voelker.de> Date: Sat, 2 Jan 2021 03:30:44 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <1825823.qd5lRurjMP@omega> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:Qey1nekoX2ZlkkIYvPUlKeWH47o/r2oy3oHlAman0swcqIa6X6W LB4RRhOOK9ySyA+WjR0822gnYbOHB8SIzObqjAqjUmn/BEO97fDAnMsB1/JV4rXcue4o0C7 TuZNcYvV9rHyy0mwjZKUunenzq79M0v5Mqt/jrwYYd4y49gPBQ8UG9ffL9jRf18bCFxWJ14 28O3MBEd8PeJ8qKzRVp8w== X-UI-Out-Filterresults: notjunk:1;V03:K0:JuWZGLIwpF0=:GXSofW5svL5tazVf/zs/Ki WF8nhgvHV8Q1Nzi0Jvw+v35MAkXAw3I804mkicZP728cE7ByYlB/Yrg25QOnIQc1kbbpFL3zg 3HX3qbLXdcqirpTP4z4ghMs/kLcqPaZ4X3g6GJYHh9eqOc3jJilnjG8zLWDBERaFGO/nDdzpy J8//BDbKRoWyivN/pg0iQbi9S8GLNNC7z+QKaccPhdAwZhTeUyJ/7m6vDp0K38beemtEvayvk MOf8wjDClZdCiKq3/IJaCU1WrKUIidU2Z+wyzYPzB0WpG5KctlIXme3vlZZUHparWjmA+pebs cmcDghiHkmz2pycSMKrW5mBamE6ye+bLJbv/qplCeJ0CEQiyeKwAXHvVJkOuZkfh1ovJB8Puh 2QPGONkIWwkv6Wm1+4bA7/9wKv3xqPWjY5OxNbQUCyJeOnp69fsUSZIhjkGFTBMi+m1av76ZI KLU+d4pCoQ== Received-SPF: none client-ip=212.227.126.187; envelope-from=mail@bernhard-voelker.de; helo=mout.kundenserver.de X-Spam_score_int: -45 X-Spam_score: -4.6 X-Spam_bar: ---- X-Spam_report: (-4.6 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-2.749, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: bug-gnulib@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Gnulib discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: bug-gnulib@gnu.org Errors-To: bug-gnulib-bounces+normalperson=yhbt.net@gnu.org Sender: "bug-gnulib" Hi Bruno, On 1/2/21 2:59 AM, Bruno Haible wrote: > Hi Berny, > >> So it may be an issue with the 10.2.1 version >> ... >> I'm not sure how to proceed from here. > > The most interesting piece of information is the rationale of this > warning (i.e. more precisely why the warning is enabled by default). > Maybe it can be found in the set of patches of this GCC version and/or > its Changelog? > > Bruno > I can't find a trace about it. The GCC on my Tumbleweed is based on https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=e563687cf9d3d1278f45aaebd with only a handful of unrelated patches. As I see the same on Fedora, the issue seems to be upstream, doesn't it? Cloning 'gcc.git' with my slow connection takes a while. But I'm not sure whether I'll be able to find something in the GCC sources after the tag 'releases/gcc-10.2.0' (your version). Have a nice day, Berny