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=-4.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 03B54C433DF for ; Wed, 24 Jun 2020 12:52:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CD4A520663 for ; Wed, 24 Jun 2020 12:52:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593003160; bh=bGKLOzXs0g6SkMcsLecR7cl0qPhgg12HGv1cwNX6TYQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=NigBjq4ggS/fxrfSRD7oLBeTj1hiXTDEtNXkDu+QgLS4tzuxLRoYmsRcPgfEdZ68B gWkijWTIxFxZmTSalqH1h9NqGYPbs+2y0LsPL2S8JT49Zxop4miD0rESCycyrWN9RN u4c4n2fW5GG1RQoXRNNYyEwZDRrIwe2t0n/q6ncI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390913AbgFXMwk (ORCPT ); Wed, 24 Jun 2020 08:52:40 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:37541 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388942AbgFXMwj (ORCPT ); Wed, 24 Jun 2020 08:52:39 -0400 Received: by mail-pf1-f195.google.com with SMTP id j1so1135725pfe.4; Wed, 24 Jun 2020 05:52:39 -0700 (PDT) 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=ImZMVmJ6KLEqHAgKJ4c32f0nuRv6OUnQsFfctRSAXJo=; b=aq9B/Xquq7abP5W46czT/Y6R0AfQt6SMY2t56fsDVPTTUuHqh3n8759IC7LiWzKPjk 9pDrbuCKE43BMY5yyu/DY1+aaThShdSqVPXLqw9Ej/9nAZXswXwjlsCFApCp9A5wk4Ia 56S2A65e3tXtjajxVqXh62RTMBac/9gncxFJ+VeC1QzS3MKKKEeSJ7To01F2bX0iUe/Z ZjYqnXEb2hJico4bcPuA2YtGDQHBafYVX8ZC91dStxzivDf+BFItv5QlwXG2hS+3aJig A9F2IjgU/b0SspwnpAkV9fHvG8IFGKRTBhwmO+t3FT6J7dl+E+QTt7XxhpLXperTQb3I zmyA== X-Gm-Message-State: AOAM533kBqFXjfTD7+5zoUuwN2YIhwPhXX7YRzOpUOgpr6Bow1FnP1sW IzZhNl7SxijYa+6z7KnLn2A= X-Google-Smtp-Source: ABdhPJzddnf/uaOk9Rgp8vbxcf8lUTdU8rjuvn4Wiik8YZvkhsAy30AnlKe/2Lxzs/SCBU/Spfu6GQ== X-Received: by 2002:a63:2a8a:: with SMTP id q132mr21027891pgq.279.1593003158753; Wed, 24 Jun 2020 05:52:38 -0700 (PDT) Received: from 42.do-not-panic.com (42.do-not-panic.com. [157.230.128.187]) by smtp.gmail.com with ESMTPSA id z11sm20679101pfk.141.2020.06.24.05.52.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Jun 2020 05:52:37 -0700 (PDT) Received: by 42.do-not-panic.com (Postfix, from userid 1000) id BAA8F40430; Wed, 24 Jun 2020 12:52:36 +0000 (UTC) Date: Wed, 24 Jun 2020 12:52:36 +0000 From: Luis Chamberlain To: Alexander Popov Cc: Kees Cook , Jann Horn , Emese Revfy , Miguel Ojeda , Masahiro Yamada , Michal Marek , Andrew Morton , Masahiro Yamada , Thiago Jung Bauermann , Jessica Yu , Sven Schnelle , Iurii Zaikin , Catalin Marinas , Will Deacon , Vincenzo Frascino , Thomas Gleixner , Peter Collingbourne , Naohiro Aota , Alexander Monakov , Mathias Krause , PaX Team , Brad Spengler , Laura Abbott , Florian Weimer , kernel-hardening@lists.openwall.com, linux-kbuild@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, gcc@gcc.gnu.org, notify@kernel.org Subject: Re: [PATCH v2 2/5] ARM: vdso: Don't use gcc plugins for building vgettimeofday.c Message-ID: <20200624125236.GF4332@42.do-not-panic.com> References: <20200624123330.83226-1-alex.popov@linux.com> <20200624123330.83226-3-alex.popov@linux.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200624123330.83226-3-alex.popov@linux.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 24, 2020 at 03:33:27PM +0300, Alexander Popov wrote: > Don't use gcc plugins for building arch/arm/vdso/vgettimeofday.c to > avoid unneeded instrumentation. > > Signed-off-by: Alexander Popov But why is skipping it safe? Luis