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=-9.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 6F032C2BC11 for ; Thu, 3 Sep 2020 23:38:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 424272087C for ; Thu, 3 Sep 2020 23:38:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="gvG6wFPN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728288AbgICXiZ (ORCPT ); Thu, 3 Sep 2020 19:38:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36302 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728134AbgICXiX (ORCPT ); Thu, 3 Sep 2020 19:38:23 -0400 Received: from mail-pl1-x642.google.com (mail-pl1-x642.google.com [IPv6:2607:f8b0:4864:20::642]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3038AC061247 for ; Thu, 3 Sep 2020 16:38:22 -0700 (PDT) Received: by mail-pl1-x642.google.com with SMTP id h2so287907plr.0 for ; Thu, 03 Sep 2020 16:38:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=vpMIvEwuRSqC+Z+zTJmdoPgPG+oL4Eop2jtb25EWWgk=; b=gvG6wFPNF0Tcin4Ap2mhko2aiVRBSXzp1p2mlklenZECv4SocSBp+jn3VNJMansFKr OiZX2u7WDwqU4iPvPk8YmYriiePKsJQyUZuud8Bhv0KORwFRgLPlXNkRLZ2trFWXd5Y/ oOBfwOcv/SeeoHkG8Ef4WwrqpQReE8/Tx8zcg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=vpMIvEwuRSqC+Z+zTJmdoPgPG+oL4Eop2jtb25EWWgk=; b=FsANEwz8y19PcqjJ+QQjt/JCWWg5BH49ebhXW30vK0Ux8QPeE2vExHfcJm1kyioxSk FDPlBXusN83F3EzNv1LJesbKpmzxsvuREXl1l7IKdefB61JwkSdgiQ3sBYYeF12XXp0i ppoljsL8JM1HVRIxJFN5PG1LNE/HAxuf5pIob/IjA3hW6bnOo+QjrAbb4gfwE9Baxjil gPvtMrci2mye9KdFI8S0nYxDCOv9oY7/tYPQq7EQltktX/R5eP9F837vdkq8+FWzeJL7 s1WiaO8J5cJB+u9NcqPmrpg+oAKfxLFiWu5n2jG1IxUHOVtZKzrSofXZRne6RzyVKLf/ wkMQ== X-Gm-Message-State: AOAM530D5kmxga1chJ2+8PEI06JFaMkXY5lOaaAsPBjn5kB5d9Dv9sxu JvHjhhhnhu5kYZgXR2teqzqr5Q== X-Google-Smtp-Source: ABdhPJyiZpxHVqfKKsHge2peFlT0tOhsV4ucarLlAr1ffPxhOv0TOSI8XtiKBiFflmROB6YHqiVGkg== X-Received: by 2002:a17:90a:d514:: with SMTP id t20mr5116667pju.134.1599176301506; Thu, 03 Sep 2020 16:38:21 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id z66sm4420212pfb.53.2020.09.03.16.38.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Sep 2020 16:38:20 -0700 (PDT) Date: Thu, 3 Sep 2020 16:38:19 -0700 From: Kees Cook To: Sami Tolvanen Cc: Masahiro Yamada , Will Deacon , Peter Zijlstra , Steven Rostedt , Greg Kroah-Hartman , "Paul E. McKenney" , Nick Desaulniers , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, x86@kernel.org Subject: Re: [PATCH v2 00/28] Add support for Clang LTO Message-ID: <202009031634.876182D@keescook> References: <20200624203200.78870-1-samitolvanen@google.com> <20200903203053.3411268-1-samitolvanen@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200903203053.3411268-1-samitolvanen@google.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Thu, Sep 03, 2020 at 01:30:25PM -0700, Sami Tolvanen wrote: > This patch series adds support for building x86_64 and arm64 kernels > with Clang's Link Time Optimization (LTO). > [...] > base-commit: e28f0104343d0c132fa37f479870c9e43355fee4 And if you're not a b4 user, this tree can be found at either of these places: https://github.com/samitolvanen/linux/commits/clang-lto git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git kspp/sami/lto/v2 -- Kees Cook