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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 EDFC4C4BA00 for ; Tue, 25 Feb 2020 22:21:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CB1022176D for ; Tue, 25 Feb 2020 22:21:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729042AbgBYWV4 (ORCPT ); Tue, 25 Feb 2020 17:21:56 -0500 Received: from smtprelay0238.hostedemail.com ([216.40.44.238]:33935 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726421AbgBYWVz (ORCPT ); Tue, 25 Feb 2020 17:21:55 -0500 Received: from filter.hostedemail.com (clb03-v110.bra.tucows.net [216.40.38.60]) by smtprelay07.hostedemail.com (Postfix) with ESMTP id 9970A181D3417; Tue, 25 Feb 2020 22:21:54 +0000 (UTC) X-Session-Marker: 6A6F6540706572636865732E636F6D X-HE-Tag: mass36_2d532f68ee916 X-Filterd-Recvd-Size: 1751 Received: from XPS-9350 (unknown [172.58.27.58]) (Authenticated sender: joe@perches.com) by omf08.hostedemail.com (Postfix) with ESMTPA; Tue, 25 Feb 2020 22:21:50 +0000 (UTC) Message-ID: <3b7b2b366220c9ba39ebc241ba22c0304f0d61b0.camel@perches.com> Subject: Re: [PATCH] Documentation/llvm: add documentation on building w/ Clang/LLVM From: Joe Perches To: Kees Cook , Nick Desaulniers Cc: Nathan Chancellor , Jonathan Corbet , Masahiro Yamada , Michal Marek , Linux Kbuild mailing list , Linux Doc Mailing List , LKML , clang-built-linux Date: Tue, 25 Feb 2020 14:20:19 -0800 In-Reply-To: <202002251353.25A016CD@keescook> References: <20200224174129.2664-1-ndesaulniers@google.com> <202002242003.870E5F80@keescook> <20200225041643.GA17425@ubuntu-m2-xlarge-x86> <202002251353.25A016CD@keescook> Content-Type: text/plain; charset="ISO-8859-1" User-Agent: Evolution 3.34.1-2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2020-02-25 at 13:56 -0800, Kees Cook wrote: > I think we should take a specific version stand as the > "minimum" version. Being able to build x86 defconfig is a good minimum > IMO. Agree. It's odd to say that clang 4 is fine for arm when it's not fine for x86. It's also reasonable to expect arm users to upgrade their compiler to a more recent version when the only cost is a very small bit of time.