From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24D36C433DF for ; Tue, 7 Jul 2020 13:56:26 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F41222073E for ; Tue, 7 Jul 2020 13:56:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F41222073E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jso4n-0001Ei-MH; Tue, 07 Jul 2020 13:56:01 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jso4m-0001Ea-Pp for xen-devel@lists.xenproject.org; Tue, 07 Jul 2020 13:56:00 +0000 X-Inumbo-ID: 9670a368-c059-11ea-8d75-12813bfff9fa Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 9670a368-c059-11ea-8d75-12813bfff9fa; Tue, 07 Jul 2020 13:56:00 +0000 (UTC) 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 B7CFAAE2C; Tue, 7 Jul 2020 13:55:59 +0000 (UTC) Subject: Re: [PATCH] x86emul: avoid assembler warning about .type not taking effect in test harness From: Jan Beulich To: "xen-devel@lists.xenproject.org" References: <4a0f9e7d-53f1-b77f-e8a9-a75483884a6f@suse.com> Message-ID: <7f59e378-1996-7fd7-9c2b-e8dc36c7f992@suse.com> Date: Tue, 7 Jul 2020 15:55:58 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <4a0f9e7d-53f1-b77f-e8a9-a75483884a6f@suse.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Andrew Cooper , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , Wei Liu , Paul Durrant Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" On 07.07.2020 11:35, Jan Beulich wrote: > gcc 9.3 started to re-order top level blocks by default when optimizing. > This re-ordering results in all our .type directives to get emitted to > the assembly file first, followed by gcc's. The assembler warns about > attempts to change the type of a symbol when it was already set (and > when there's no intervening setting to "notype"). Turns out this wasn't a gcc change - the problem had been there all the time, it just went through silently. It was the newer gas that I built gcc 9.3 with that caused to issue to become visible. I've slightly updated the description to account for this. Jan