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=-9.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 CA836C433E2 for ; Tue, 21 Jul 2020 14:04:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A07A12064B for ; Tue, 21 Jul 2020 14:04:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="0vFJ01JM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728772AbgGUOE4 (ORCPT ); Tue, 21 Jul 2020 10:04:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50462 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728426AbgGUOE4 (ORCPT ); Tue, 21 Jul 2020 10:04:56 -0400 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED1DEC061794; Tue, 21 Jul 2020 07:04:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=35SbtfWGz45hL6nU4tFXWLRurwYHBqmeuQ1Pfog9lBE=; b=0vFJ01JML6wAxqx0pgoErHwFWm qgYuA1U50+QuNkCwa4AAwpV95tjuDr4qpsWJTXWQgdrh2sg3jeCzWLEri5cWOm0pdYjjBVdOLNkWU W71JJO0GypwD9MgwhTFgGGTvtW87X5kKZ2pPqc998yJkhTfzsqXJtkOSk4v+XnDqeS+F3v5zQPWMM kA9oc3/BmPxl+U81YAt+TcQrP8352Pt3dTI32jB+evjClILufPhW9gV0QEd/H/WroCoqIJh48OLPh uxqV4uWPVIfETObbKHS8nHPPnfcWL/VKLoKXszfRorLG33+LEZ2LP9v3vtqV8s4btah6+p23tnc2R ECB9q1WQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jxssz-0007zy-LP; Tue, 21 Jul 2020 14:04:49 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 3E0A6304D28; Tue, 21 Jul 2020 16:04:48 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 1603B20DCCA0B; Tue, 21 Jul 2020 16:04:48 +0200 (CEST) Date: Tue, 21 Jul 2020 16:04:48 +0200 From: Peter Zijlstra To: Marco Elver Cc: paulmck@kernel.org, will@kernel.org, arnd@arndb.de, mark.rutland@arm.com, dvyukov@google.com, glider@google.com, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: Re: [PATCH 2/8] objtool, kcsan: Add __tsan_read_write to uaccess whitelist Message-ID: <20200721140448.GZ10769@hirez.programming.kicks-ass.net> References: <20200721103016.3287832-1-elver@google.com> <20200721103016.3287832-3-elver@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200721103016.3287832-3-elver@google.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 21, 2020 at 12:30:10PM +0200, Marco Elver wrote: > Adds the new __tsan_read_write compound instrumentation to objtool's > uaccess whitelist. > > Signed-off-by: Marco Elver Acked-by: Peter Zijlstra (Intel) > --- > tools/objtool/check.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/tools/objtool/check.c b/tools/objtool/check.c > index 63d8b630c67a..38d82e705c93 100644 > --- a/tools/objtool/check.c > +++ b/tools/objtool/check.c > @@ -528,6 +528,11 @@ static const char *uaccess_safe_builtin[] = { > "__tsan_write4", > "__tsan_write8", > "__tsan_write16", > + "__tsan_read_write1", > + "__tsan_read_write2", > + "__tsan_read_write4", > + "__tsan_read_write8", > + "__tsan_read_write16", > "__tsan_atomic8_load", > "__tsan_atomic16_load", > "__tsan_atomic32_load", > -- > 2.28.0.rc0.105.gf9edc3c819-goog >