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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFEE5C433EF for ; Fri, 3 Dec 2021 09:55:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1379550AbhLCJ6c (ORCPT ); Fri, 3 Dec 2021 04:58:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46438 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232991AbhLCJ6b (ORCPT ); Fri, 3 Dec 2021 04:58:31 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B107C06173E; Fri, 3 Dec 2021 01:55:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.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=KuDYRRXIU8uwGVnlVILD3XbuYJoxfOWwY4s5Uu98bYc=; b=RLPAF9o1UFaj2OysnGq6t8bq05 zhY9Ouqf05ano45hk2S9wDCd1l3VSirW2+ABM6hdlTHNarLsaIYylu0V/avfnYLD7UJ52VOax60TE tIe9CwqODH/HBfFRYpr/HAENvEcsUB1bPGFBPTsl2nkMoHj3kGqtBByNfeY7E1PHYopreWwgPWoNY 7MDVXLcfpB7YetaZMXNTUW+ZRRLkL55A878GvAzQ2EKH2xTz/CWxj7v/p7MNcXfrcWF5plCDSLk1M HqgPbUCFawjcG+b/du5eMf64uxDRkVd5J6/hP4qeDJuvOJbFImDuviq7L92IWJI1AUKF2Sc8IGouV iQG5PaVw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mt5HE-0085k1-Ej; Fri, 03 Dec 2021 09:54:49 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 41EC230001C; Fri, 3 Dec 2021 10:54:48 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 2BC542B36B3A8; Fri, 3 Dec 2021 10:54:48 +0100 (CET) Date: Fri, 3 Dec 2021 10:54:48 +0100 From: Peter Zijlstra To: Alexander Lobakin Cc: linux-hardening@vger.kernel.org, x86@kernel.org, Jesse Brandeburg , Kristen Carlson Accardi , Kees Cook , Miklos Szeredi , Ard Biesheuvel , Tony Luck , Bruce Schlobohm , Jessica Yu , kernel test robot , Miroslav Benes , Evgenii Shatokhin , Jonathan Corbet , Masahiro Yamada , Michal Marek , Nick Desaulniers , Herbert Xu , "David S. Miller" , Thomas Gleixner , Will Deacon , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Andy Lutomirski , Arnd Bergmann , Josh Poimboeuf , Nathan Chancellor , Masami Hiramatsu , Marios Pomonis , Sami Tolvanen , linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-arch@vger.kernel.org, live-patching@vger.kernel.org, llvm@lists.linux.dev Subject: Re: [PATCH v8 06/14] FG-KASLR: use a scripted approach to handle .text.* sections Message-ID: References: <20211202223214.72888-1-alexandr.lobakin@intel.com> <20211202223214.72888-7-alexandr.lobakin@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211202223214.72888-7-alexandr.lobakin@intel.com> Precedence: bulk List-ID: X-Mailing-List: live-patching@vger.kernel.org On Thu, Dec 02, 2021 at 11:32:06PM +0100, Alexander Lobakin wrote: > +#!/usr/bin/env perl > + ($name, $align) = $_ =~ /^\s*\[[\s0-9]*\]\s*(\.\S*)\s*[A-Z]*\s*[0-9a-f]{16}\s*[0-9a-f]*\s*[0-9a-f]*\s*[0-9a-f]*\s*[0-9a-f]{2}\s*[A-Z]{2}\s*[0-9]\s*[0-9]\s*([0-9]*)$/; > + if (!($name =~ /^\.text\.[0-9a-zA-Z_]*((\.constprop|\.isra|\.part)\.[0-9])*(|\.[0-9cfi]*)$/)) { :-(