From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 69703 invoked by alias); 2 Sep 2016 16:32:10 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 69694 invoked by uid 89); 2 Sep 2016 16:32:09 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=0.9 required=5.0 tests=AWL,BAYES_50,KAM_LAZY_DOMAIN_SECURITY,RCVD_IN_DNSWL_LOW autolearn=no version=3.3.2 spammy=1756, 58ca, 942b, 4ED5 X-HELO: mail-out.m-online.net Received: from mail-out.m-online.net (HELO mail-out.m-online.net) (212.18.0.9) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 02 Sep 2016 16:31:59 +0000 Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 3sQl594zrPz3hjQP; Fri, 2 Sep 2016 18:31:57 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.68]) by mail.m-online.net (Postfix) with ESMTP id 3sQl593858zvxR6; Fri, 2 Sep 2016 18:31:57 +0200 (CEST) Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.68]) (amavisd-new, port 10024) with ESMTP id pNPnzi7Ye_sy; Fri, 2 Sep 2016 18:31:56 +0200 (CEST) X-Auth-Info: HCd5KeFD6/CBV19rbMB9CaygWLxpqXszyQ16f99arWd/QghVf3XMjh5g86+WwsZN Received: from igel.home (ppp-88-217-12-130.dynamic.mnet-online.de [88.217.12.130]) by mail.mnet-online.de (Postfix) with ESMTPA; Fri, 2 Sep 2016 18:31:56 +0200 (CEST) Received: by igel.home (Postfix, from userid 1000) id 3796F2C255A; Fri, 2 Sep 2016 18:31:56 +0200 (CEST) From: Andreas Schwab To: Ian Lance Taylor Cc: gcc-patches , "gofrontend-dev\@googlegroups.com" Subject: Re: Fwd: libgo patch committed: Use -fgo-c-header to share between Go and C References: <871t12xoqr.fsf@linux-m68k.org> <87wpiuw9km.fsf@linux-m68k.org> X-Yow: Someone is DROOLING on my collar!! Date: Fri, 02 Sep 2016 16:32:00 -0000 In-Reply-To: <87wpiuw9km.fsf@linux-m68k.org> (Andreas Schwab's message of "Fri, 02 Sep 2016 18:27:53 +0200") Message-ID: <87shtiw9dv.fsf@linux-m68k.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-SW-Source: 2016-09/txt/msg00102.txt.bz2 On Sep 02 2016, Andreas Schwab wrote: > On Sep 02 2016, Ian Lance Taylor wrote: > >> On Fri, Sep 2, 2016 at 9:14 AM, Andreas Schwab wrote: >>> >>> That breaks libgo on ia64. The problem is that _ucontext_t isn't >>> properly aligned. >> >> Interesting. Thanks for looking into it. What is the required >> alignment? This code should be aligning it to a pointer boundary. > > That is too small. It needs at least 16 byte alignment. And PowerPC has a similar requirement. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."