From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 103277 invoked by alias); 19 May 2015 15:54:11 -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 103257 invoked by uid 89); 19 May 2015 15:54:10 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.8 required=5.0 tests=AWL,BAYES_50,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-Spam-User: qpsmtpd, 2 recipients X-HELO: mail-pa0-f45.google.com Received: from mail-pa0-f45.google.com (HELO mail-pa0-f45.google.com) (209.85.220.45) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-GCM-SHA256 encrypted) ESMTPS; Tue, 19 May 2015 15:54:10 +0000 Received: by pabts4 with SMTP id ts4so29930589pab.3; Tue, 19 May 2015 08:54:08 -0700 (PDT) X-Received: by 10.66.66.197 with SMTP id h5mr56631552pat.29.1432050846652; Tue, 19 May 2015 08:54:06 -0700 (PDT) Received: from [192.168.1.35] (76-253-1-90.lightspeed.sntcca.sbcglobal.net. [76.253.1.90]) by mx.google.com with ESMTPSA id m8sm13509296pdn.5.2015.05.19.08.54.04 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 19 May 2015 08:54:05 -0700 (PDT) References: <555B327F.3090107@foss.arm.com> Mime-Version: 1.0 (1.0) In-Reply-To: <555B327F.3090107@foss.arm.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Message-Id: <4075D774-3A43-4507-B34E-DB505371E57D@gmail.com> Cc: "gcc-patches@gcc.gnu.org" , "libstdc++@gcc.gnu.org" From: pinskia@gmail.com Subject: Re: [Patch AArch64] Add cpu_defines.h for AArch64. Date: Tue, 19 May 2015 16:00:00 -0000 To: Ramana Radhakrishnan X-IsSubscribed: yes X-SW-Source: 2015-05/txt/msg01717.txt.bz2 > On May 19, 2015, at 5:54 AM, Ramana Radhakrishnan wrote: >=20 > Hi, >=20 > Like the ARM port, the AArch64 ports needs to set glibc_integral_traps to= false as integer divide instructions do not trap. >=20 > Bootstrapped and regression tested on aarch64-none-linux-gnu >=20 > Ok to apply ? Not really questioning your patch but questioning libstdc++'s defaults. I w= onder if this should be the default as most targets don't trap, only a few = that does. And it should be safer default to say they don't trap too? Thanks, Andrew >=20 > regards > Ramana >=20 >=20 > 2015-05-17 Ramana Radhakrishnan >=20 > * configure.host: Define cpu_defines_dir for AArch64 > * config/cpu/aarch64/cpu_defines.h: New file. > <0002-Do-the-same-for-AArch64.patch>