From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752054AbeERTgY (ORCPT ); Fri, 18 May 2018 15:36:24 -0400 Received: from mail-dm3nam03on0045.outbound.protection.outlook.com ([104.47.41.45]:54511 "EHLO NAM03-DM3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751744AbeERTgX (ORCPT ); Fri, 18 May 2018 15:36:23 -0400 From: Nadav Amit To: "hpa@zytor.com" CC: Linus Torvalds , Peter Zijlstra , Linux Kernel Mailing List , the arch/x86 maintainers , Thomas Gleixner , Ingo Molnar , Josh Poimboeuf Subject: Re: [PATCH 2/6] x86: bug: prevent gcc distortions Thread-Topic: [PATCH 2/6] x86: bug: prevent gcc distortions Thread-Index: AQHT7jbL50o+w3m6PkeKHm2HX6GyP6Q1H7KAgACNMgCAABDSAIAAERIAgAACU4CAAASRAIAAAOaAgAACnwCAAAJMgIAAAfyAgAAAzgCAAACDAIAAA8QA Date: Fri, 18 May 2018 19:36:20 +0000 Message-ID: References: <20180517161402.78089-1-namit@vmware.com> <20180517161402.78089-3-namit@vmware.com> <20180518075853.GD12217@hirez.programming.kicks-ass.net> <6DB0E0C2-CCD2-4FCE-BD8B-5E340E308FF7@vmware.com> <2F760FAE-C19C-4BC3-A8CC-7D17CEF3B116@zytor.com> <6A3E90AA-7838-4C2A-B628-908F34902B75@vmware.com> <102B8072-91D5-4D28-82C9-64D5AA73802C@zytor.com> In-Reply-To: <102B8072-91D5-4D28-82C9-64D5AA73802C@zytor.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [208.91.2.2] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;SN2PR05MB2463;7:esISJjh0cHTb6jttOs0w/bwK3S/0cJ355DB784tUwrbZjhq3u6JKkzY2+ESTU0mVX+zeu9pAYymkx4SnXksAmbOPLTBQ9e9M6k1W1bOpzTj+gyi7TDHj+qlhLlM/MNac+CMQ0P9CV3a66uiAOQb0HZgX1iqQq7Bx/J3EbXjvBqsP0WJ2ebHv4nB69m0GB9MOxJaNeEjXz7JqrhGYe0QkTJZDqVzvstwY+qAGRqbp3uL8+dBxurFIQ28kHyvlsj6W;20:mJl71MA1FYWSdmlQIty2RrmxdiIApytZ05w0zRi/hVSxG6VEKIx5p2wOfTKDS3QSXiCh84D1R81Mqqx5wC9IEnVDx0kjT/om6GZXT9xnNty4mQmSOjMsK4bWF4wbNmps0gQ93YGaJ+w2KvngdIzrHLYfKgAE3L4H8MwWLR/0NiQ= x-ms-exchange-antispam-srfa-diagnostics: SOS; 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authentication-results: spf=none (sender IP is ) smtp.mailfrom=namit@vmware.com; x-microsoft-antispam-message-info: yzUEk5iTUHH/gOxFdFfM+SucNNsVBj4FtcJFSElmr0MwHn1RSGl8fee3bmGtF9XK7ufSXigNTnihJ1dqh+qELmcFSNssAeYI1+3YIZ8EjT9V8SdWF6qmfbcevGlxGTbTuRBY5Aj2xeVLV9x6DMjT6e6/9MsyqysZjpThzy39W9k53wIWCE4mgBSA6BscL6C9 spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: <232C48DD0B53A34097A9E6C7251A5189@namprd05.prod.outlook.com> MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: 6db1d538-0ac1-414d-1ce5-08d5bcf6a19b X-OriginatorOrg: vmware.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6db1d538-0ac1-414d-1ce5-08d5bcf6a19b X-MS-Exchange-CrossTenant-originalarrivaltime: 18 May 2018 19:36:20.0504 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b39138ca-3cee-4b4a-a4d6-cd83d9dd62f0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN2PR05MB2463 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id w4IJaU0R014711 hpa@zytor.com wrote: > On May 18, 2018 12:21:00 PM PDT, Linus Torvalds wrote: >> On Fri, May 18, 2018 at 12:18 PM Nadav Amit wrote: >> >>> Gnu ASM manual says: "Each time you run as it assembles exactly one >> source >>> program. The source program is made up of one or more files.” >> >> Ok, that counts as documentation, although it's confusing as hell. Is >> it >> one source program or multiple files again? I see what they are trying >> to >> say, but it really could be phrased more clearly ;) >> >> Linus > > At least we have a solution! Thanks for all your help. I will try to do it over over the weekend. Funny, I see that this “trick” (-Wa,[filename.s]) is already being used to include arch/x86/boot/code16gcc.h so I feel “safer” to use it. Regards, Nadav