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=-4.0 required=3.0 tests=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 AF830C433DF for ; Wed, 24 Jun 2020 14:02:17 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 12CA920724 for ; Wed, 24 Jun 2020 14:02:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 12CA920724 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-19099-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 24450 invoked by uid 550); 24 Jun 2020 14:02:10 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 22234 invoked from network); 24 Jun 2020 12:52:50 -0000 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=rp63CXNNmJdvi7EOVw0W1SXMcaY8vfg8HjVrKLrYU/ZL/9ZzGzFZbZoPvKv7RH0OLA +n5w5IxJHUGqe4rStlPTTvwGWxZiykxAxp3KzvdFv/FKPaGB/wN21dSqCcFENC69ph/x rRMncFE30RREd2Qhg0zf8qkeS3FGYNStdjcUeIYJc1vD4ScaLo+siZSNnlGnyz7XF5II YyndAjAwxq/FI38Dl1iOngRMZ3BjXUz5c419ueTYAbkTQdL0+Md1UNrU5hKrGno7UxYV vS25NqcHdAbWbj0Ikwrke6OZQ2BTupDNJV8vvwZ4Qhz6RJrflS/8jcCcqrwymXqsD2sk APjQ== X-Gm-Message-State: AOAM532lhE9x/ENXW+mxkgSlbH0BvG3mRAexMEHvzpleVOOaFLSpmxE5 yrTNZdDPbH7HjYNoa5LdYjk= 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) 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> 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