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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 C6C5FC04ABB for ; Thu, 13 Sep 2018 04:03:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 63CE92133F for ; Thu, 13 Sep 2018 04:03:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ECDJCXVA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 63CE92133F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726866AbeIMJKz (ORCPT ); Thu, 13 Sep 2018 05:10:55 -0400 Received: from mail-qt0-f193.google.com ([209.85.216.193]:37164 "EHLO mail-qt0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726364AbeIMJKy (ORCPT ); Thu, 13 Sep 2018 05:10:54 -0400 Received: by mail-qt0-f193.google.com with SMTP id n6-v6so4175267qtl.4 for ; Wed, 12 Sep 2018 21:03:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=1uxQgYYR4yWpo1Urd72WH8XQcH+dHq+7GUlHe/gmg4c=; b=ECDJCXVAnydnhwWpU/OJNaj3h8a0fQbsWLdANjcsHtwIddDJ7q48s31GJRElIeNunP U1V6SINbe2br/43+pC1ynKuTZC1UWzXo31gKtxQJu3EeD+kFh1uFD2Xqh4Kao0UZWnJb 8xlliEtRyVB/qraz2q6yLh75Vkwf5OA26DR2brb45UUCGh8owudVs7Xzat9U3iIp2gWI oLd5PxK/vrIDv/1f9aD9OjAzDMZIdOEI76cliEBKRFsKx6NMevVihyYoq24IlRmePuiB iuLO04WXrsmlhBf3W53jbocf+uf1SFN9BiAccMA4A48/eGsG4Z7MCr/QfolfdYzdKfBj v3kg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=1uxQgYYR4yWpo1Urd72WH8XQcH+dHq+7GUlHe/gmg4c=; b=JbwfkqUndHn2mXduKcHgt6sI4+V5sHMptLsh+K1XBjuoiLP/K9x7fCsgP+i1lb6GLH kMXz+5qACbT3x3O04ciuV60Bvg9rmRwmCveXCoDL/V9mfsO6OuaBW/f/Cdw+pPq47hR3 IKxLJyle/dSqMIyurEGgyUdaC6X5Zha8vvJfokLgorp0dqqqYB3GDphT10n6VHxirhzT bUuhw7vLdj6Umhlb5UPP/Ih9e1WNYb4WY1aOHg7TcNzimk/7VAzwcDDbVW1O5oYVHtu1 E78vZseJ3c11JCyXAxCw0XlaKHlJTZoReUVsvG6AxqfqJwEYwf8qBvVrXxfZzf/3Si/p sdhg== X-Gm-Message-State: APzg51DRva0NaQBzcE7IjzhyRzX9dEdwYjsHWPu5P33zW+VEZwZBYMlw n0OhiNio6lZKXPWwB32+wxcoOvKuOEyBwziyLeA= X-Google-Smtp-Source: ANB0VdZqp++KB5nIVuG4IvmhKkAA4LPwelOg83uMxbPX1XsTkc+MCLQ8dhwPPBJsiuALkfNH+DyO5g24rPU85/T7zHY= X-Received: by 2002:ac8:304a:: with SMTP id g10-v6mr3947036qte.136.1536811395314; Wed, 12 Sep 2018 21:03:15 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ac8:7494:0:0:0:0:0 with HTTP; Wed, 12 Sep 2018 21:02:54 -0700 (PDT) In-Reply-To: References: <20180910060455.20409-1-stefan@agner.ch> From: Miguel Ojeda Date: Thu, 13 Sep 2018 06:02:54 +0200 Message-ID: Subject: Re: [PATCH] include/linux/compiler-clang.h: define __naked To: Arnd Bergmann Cc: Stefan Agner , Linus Torvalds , Nick Desaulniers , Andrew Morton , Kees Cook , Thomas Gleixner , Ingo Molnar , Andrey Ryabinin , Will Deacon , Rasmus Villemoes , David Woodhouse , Paul Lawrence , Linux ARM , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi again, On Wed, Sep 12, 2018 at 6:19 AM, Miguel Ojeda wrote: > > I will do a bigger one tomorrow or so and see if there are any > important differences. Regardless of what we do, I will send the > __naked patches separately as well (requested by Nick on GitHub). So I did a comparison with a full allyesconfig between -rc2 and -rc2 + v4. I find quite a lot binary differences, but not a single objdump -d difference (object file by object file) just by fixing UTS_RELEASE to the same value, so I guess that is a very good sign in case someone wants to pick the entire series sooner than expected. Regardless, I will send the separate __naked patches. I should note that, at some point in one of my allyesconfig builds I got this: UPD include/generated/compile.h CC init/version.o AR init/built-in.a AR built-in.a LD vmlinux.o MODPOST vmlinux.o ld: drivers/edac/amd64_edac.o(.text+0x200031d2): reloc against `__asan_load4_noabort': error 4 ld: final link failed: Nonrepresentable section on output Makefile:1035: recipe for target 'vmlinux' failed make: *** [vmlinux] Error 1 Running make (without cleaning) didn't reproduce it, and the other allyesconfig builds didn't suffer any problem either. Maybe my hardware is failing, but I wanted to let you know nevertheless. Cheers, Miguel