From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21862 invoked by alias); 25 Nov 2013 18:15:27 -0000 Mailing-List: contact libc-ports-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: libc-ports-owner@sourceware.org Received: (qmail 21851 invoked by uid 89); 25 Nov 2013 18:15:25 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.7 required=5.0 tests=AWL,BAYES_40,RDNS_NONE,URIBL_BLOCKED autolearn=no version=3.3.2 X-HELO: relay1.mentorg.com Received: from Unknown (HELO relay1.mentorg.com) (192.94.38.131) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 25 Nov 2013 18:15:24 +0000 Received: from svr-orw-exc-10.mgc.mentorg.com ([147.34.98.58]) by relay1.mentorg.com with esmtp id 1Vl0ge-0007Vr-Dz from joseph_myers@mentor.com ; Mon, 25 Nov 2013 10:15:08 -0800 Received: from SVR-IES-FEM-02.mgc.mentorg.com ([137.202.0.106]) by SVR-ORW-EXC-10.mgc.mentorg.com with Microsoft SMTPSVC(6.0.3790.4675); Mon, 25 Nov 2013 10:15:08 -0800 Received: from digraph.polyomino.org.uk (137.202.0.76) by SVR-IES-FEM-02.mgc.mentorg.com (137.202.0.106) with Microsoft SMTP Server id 14.2.247.3; Mon, 25 Nov 2013 18:15:06 +0000 Received: from jsm28 (helo=localhost) by digraph.polyomino.org.uk with local-esmtp (Exim 4.76) (envelope-from ) id 1Vl0gb-0004Me-KA; Mon, 25 Nov 2013 18:15:05 +0000 Date: Tue, 26 Nov 2013 08:58:00 -0000 From: "Joseph S. Myers" To: Siddhesh Poyarekar CC: , Subject: Re: ARM: non-NEON ARMv7 support broken? In-Reply-To: Message-ID: References: <529325AC.2020406@free.fr> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" X-SW-Source: 2013-11/txt/msg00051.txt.bz2 On Mon, 25 Nov 2013, Siddhesh Poyarekar wrote: > On 25 November 2013 15:55, Guillaume Gardet wrote: > > Hi, > > > > we (openSUSE ARM team) have problems with glibc 2.18 on ARMv7 boards (Mirabox and Tegra 2 tablet) which are not NEON capable. We have no problem on Beagleboard xM or pandaboard wich have NEON capable SoC. > > > > Apparently, NEON instructions are used in glibc and lead to invalid instruction errors. > > > > Reverting to glibc 2.17 from previous openSUSE version fixes the problems. > > > > Is there anything we missed between 2.17 and 2.18? > > > > Should glibc detect NEON capable CPU at run time? > > That sounds like: > > https://sourceware.org/bugzilla/show_bug.cgi?id=15905 I noted in that this fix seemed appropriate for 2.18 branch, but it looks like it didn't get pushed there. -- Joseph S. Myers joseph@codesourcery.com