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=-7.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 A0773C433E0 for ; Fri, 19 Jun 2020 03:25:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71A0320888 for ; Fri, 19 Jun 2020 03:25:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592537134; bh=7SuqrjPlw/2UBkZukKDeX1/d8o+4qmUc8Lmo2GQh0ow=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:List-ID: From; b=bXMcmWlqrcXR1tVFFQ/f3uIzTvqwTRGUc4gk98cYoizJBl+DjTfk5DQXafic3QAjM WoUNEgDYZrE/rAUbG5BJLMXAZcWOfbm7DWH/KAf/v2aXqLr00MdVgQUKWBmgRlqWLZ 0JLiD5eF/vySXqV8pql6LCs3B3ctgzPtwnKfJkQA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730277AbgFSDZd (ORCPT ); Thu, 18 Jun 2020 23:25:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:46920 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729578AbgFSDZa (ORCPT ); Thu, 18 Jun 2020 23:25:30 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-105-78.bvtn.or.frontiernet.net [50.39.105.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8E7312080D; Fri, 19 Jun 2020 03:25:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592537130; bh=7SuqrjPlw/2UBkZukKDeX1/d8o+4qmUc8Lmo2GQh0ow=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=TwCCwEYAhoJYQQTUxGrRpZR20rmzVTRefLNdOgorJgMxDuBtlQwkUAkx1CbMDfPz+ nEgOO50PyIWRQXI0z2PhvvH9ciNjc9ORQ9iQAWCPUNAukliWJB262xJU0n8m+5n1Uw qPX5wv1MZm5PXwBDp5TFNLWUMmT/kBiWdXi2elQU= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 73A58352264E; Thu, 18 Jun 2020 20:25:30 -0700 (PDT) Date: Thu, 18 Jun 2020 20:25:30 -0700 From: "Paul E. McKenney" To: Marco Elver Cc: will@kernel.org, peterz@infradead.org, bp@alien8.de, tglx@linutronix.de, mingo@kernel.org, dvyukov@google.com, cai@lca.pw, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] kcsan: Re-add GCC support, and compiler flags improvements Message-ID: <20200619032530.GI2723@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org References: <20200618093118.247375-1-elver@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200618093118.247375-1-elver@google.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 18, 2020 at 11:31:15AM +0200, Marco Elver wrote: > Re-add GCC as a supported compiler and clean up compiler flags. > > To use KCSAN with GCC before GCC 11 is released, the following will get > a stable GCC 10 and cherry-pick the patches required for KCSAN support: > > git clone git://gcc.gnu.org/git/gcc.git && cd gcc > git checkout -b gcc-10-for-kcsan releases/gcc-10.1.0 > git cherry-pick \ > 4089df8ef4a63126b0774c39b6638845244c20d2 \ > ab2789ec507a94f1a75a6534bca51c7b39037ce0 \ > 06712fc68dc9843d9af7c7ac10047f49d305ad76 > ./configure --prefix --enable-languages=c,c++ > make -j$(nproc) && make install Unless there are objections, I will pull this in Friday (tomorrow) afternoon, Pacific Time. Thanx, Paul > Marco Elver (3): > kcsan: Re-add GCC as a supported compiler > kcsan: Simplify compiler flags > kcsan: Disable branch tracing in core runtime > > Documentation/dev-tools/kcsan.rst | 3 ++- > kernel/kcsan/Makefile | 4 ++-- > lib/Kconfig.kcsan | 3 ++- > scripts/Makefile.kcsan | 2 +- > 4 files changed, 7 insertions(+), 5 deletions(-) > > -- > 2.27.0.290.gba653c62da-goog >