From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 83087 invoked by alias); 29 Apr 2018 08:49:57 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 83056 invoked by uid 89); 29 Apr 2018 08:49:56 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.9 required=5.0 tests=BAYES_00,KAM_LAZY_DOMAIN_SECURITY,UNPARSEABLE_RELAY autolearn=no version=3.3.2 spammy=Hx-languages-length:553 X-HELO: smtp2200-217.mail.aliyun.com X-Alimail-AntiSpam:AC=CONTINUE;BC=0.2481537|-1;CH=green;FP=0|0|0|0|0|-1|-1|-1;HT=e01e04463;MF=ren_guo@c-sky.com;NM=1;PH=DS;RN=5;RT=5;SR=0;TI=SMTPD_---.Bsd4cpc_1524991784; Date: Sun, 29 Apr 2018 08:49:00 -0000 From: Guo Ren To: Joseph Myers Cc: Mao Han , c-sky_gcc_upstream@c-sky.com, gnu-csky@mentor.com, libc-alpha@sourceware.org Subject: Re: [RFC PATCH V2 02/10] C-SKY: TLS support Message-ID: <20180429084943.GA2966@guoren> References: <4b02034496617cddcca1a9443ac1a990d5b77710.1523169833.git.han_mao@c-sky.com> <20180426073346.GC15099@vmh-VirtualBox> <20180427015537.GA7006@guoren> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-SW-Source: 2018-04/txt/msg00598.txt.bz2 On Fri, Apr 27, 2018 at 12:10:19PM +0000, Joseph Myers wrote: > However, whatever the solution, I'd say the following principle applies to > userspace code: binaries that require execution of code on stack pages > should be distinguished from those that do not, and the latter should be > the default, so that if a future hardware version does support readable > but non-executable pages, existing binaries can automatically get > non-executable stacks when run on the new hardware. Ok, got it. Thx Guo Ren