From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28478 invoked by alias); 23 Jun 2017 15:03:29 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 28428 invoked by uid 89); 23 Jun 2017 15:03:28 -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,SPF_HELO_PASS,T_RP_MATCHES_RCVD autolearn=no version=3.3.2 spammy=Hx-languages-length:818 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 23 Jun 2017 15:03:27 +0000 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 95B1E2FE557; Fri, 23 Jun 2017 15:03:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 95B1E2FE557 Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=law@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 95B1E2FE557 Received: from localhost.localdomain (ovpn-117-16.phx2.redhat.com [10.3.117.16]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5CDF853C26; Fri, 23 Jun 2017 15:03:25 +0000 (UTC) Subject: Re: [committed] Fix -fstack-check with really big frames on aarch64 To: Christophe Lyon Cc: gcc-patches References: From: Jeff Law Message-ID: <4735bf8d-c6a9-2752-99d4-68aa3fa3993f@redhat.com> Date: Fri, 23 Jun 2017 15:03:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2017-06/txt/msg01791.txt.bz2 On 06/23/2017 05:15 AM, Christophe Lyon wrote: > Hi, > > A minor comment at this stage: this new test fails to compile for > thumb-1 targets: > testsuite/gcc.c-torture/compile/20031023-1.c:27:1: sorry, > unimplemented: -fstack-check=specific for Thumb-1 > > for instance on arm-none-linux-gnueabi --with-mode=thumb --with-cpu=cortex-a9 > and forcing -march=armv5t in runtest flags. > > Is there a clean way to make it unsupported?Presumably we could create an effective-target test. That would seem to me to be the most reliable way. We're going to want the ability to check for -fstack-check=specific and -fstack-check=. Do you mind waiting a few days as I start to pull the larger stack checking issues together for submission? Jeff