From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 107747 invoked by alias); 20 Jun 2018 16:42:41 -0000 Mailing-List: contact cygwin-developers-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-developers-owner@cygwin.com Mail-Followup-To: cygwin-developers@cygwin.com Received: (qmail 107711 invoked by uid 89); 20 Jun 2018 16:42:39 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy=HTo:U*cygwin-developers, H*r:TLS1, H*f:sk:2018053, answers X-HELO: mail-wm0-f46.google.com Received: from mail-wm0-f46.google.com (HELO mail-wm0-f46.google.com) (74.125.82.46) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 20 Jun 2018 16:42:37 +0000 Received: by mail-wm0-f46.google.com with SMTP id p11-v6so664926wmc.4 for ; Wed, 20 Jun 2018 09:42:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date :content-transfer-encoding:message-id:references:to; bh=ju00JsS3xNiYHY6NjY/gTj47sBZtKmk8UUvzOb513ek=; b=Vwp3NuCXNgS96JDl3fawKHo8Inie6vnJGcOhUVdIBVf9hCoymgb9o1fAw8w/H7iShU yADrNJ4mvrQIxHffM7DLXj+H9Pnopa3jb9iHKyrXZha06Tw41TjitmiqwgQdTNsBwG2B uWKg1XXRRw5fDBe4RHnAsDwi6UXwi8lT+wLgWpwi5R1eU3wWXv0zOcQuOuW2ehCiBSfV AVrRWd/vVyO+R+3UQ3hhzgGuVW7+BMHMCdR6vp99IAflZff74BPXituchDOvMjYW7H/d fH+Xu6APXl8meVj700xLN3SDD9UbWp2urCxh0vTWSNU2nBkt/fgYTzD6NIHflbSJShns 9/OQ== X-Gm-Message-State: APt69E3xyalRpgY+ek1vx/P8PvghqeTxJVMF68RnsevgEOnkronbidod tZWBaG+eoW1P6V5GV0r4tuM= X-Google-Smtp-Source: ADUXVKIs8wbyT+0ka4/I7rG9/oVqZ0AwpnR/ER8FniK61y9XPDtk9pBQp3RjSGBnhJoRLrpMWSb65g== X-Received: by 2002:a1c:688:: with SMTP id 130-v6mr2472181wmg.82.1529512955135; Wed, 20 Jun 2018 09:42:35 -0700 (PDT) Received: from bens-mac.home (LFbn-NIC-1-162-72.w2-15.abo.wanadoo.fr. [2.15.243.72]) by smtp.gmail.com with ESMTPSA id q70-v6sm3798582wmd.45.2018.06.20.09.42.34 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 20 Jun 2018 09:42:34 -0700 (PDT) Content-Type: text/plain; charset=us-ascii; delsp=yes; format=flowed Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: Cyg32 on Win64 fails with stack-protector From: Ben RUBSON In-Reply-To: Date: Wed, 20 Jun 2018 16:42:00 -0000 Content-Transfer-Encoding: 7bit Message-Id: <4E1266E8-D035-43E3-9EBA-A97FAE0D7C5D@gmail.com> References: <8A9D918F-F233-48DA-9B98-B87D7B188C21@gmail.com> <20180529165958.GK3501@calimero.vinschen.de> <20180531081835.GA14289@calimero.vinschen.de> <1eafb042-ec51-cf01-78f3-445db62dd015@cornell.edu> <20180601100644.GA6322@calimero.vinschen.de> To: JonY <10walls@gmail.com>, cygwin-developers@cygwin.com X-IsSubscribed: yes X-SW-Source: 2018-06/txt/msg00004.txt.bz2 Bill, Corinna, Jony, thank you very much for your answers and details on this topic. And sorry for my late answer, I was totally stuck on some critical subjects last days... On 01 Jun 2018 12:49, JonY wrote: > On 06/01/2018 10:06 AM, Corinna Vinschen wrote: >>>>> There appear to be some SSP related commits in the discussed time >>>>> frame. >>>>> For example: >>>>> >>>>> https://sourceware.org/git/?p=newlib-cygwin.git;a=commitdiff;h=0a5dfdbd1ba3 >>>>> 663a54fa1a7de1a6c4a0a3316a6e >>>>> >>>>> Another possibility would be a change in the gcc default options >>>>> between >>>>> Cygwin 2.9 and Cygwin 2.10. I do not know if this is possible, but >>>>> perhaps >>>>> gcc in 2.9 compiles with -fstack-protector disabled by default and >>>>> gcc in >>>>> 2.10 compiles with it enabled by default? > > libssp in gcc was disabled in favor of newlib's, not sure if that has > something to do with it too. Jony, do you mean that compilation options have changed, which could lead to our issue ? Would you manage to find out which change provided this ? By any chance, between 2017-11-14 and 2017-12-01 ? Thank you again, Best regards, Ben