From owner-freebsd-arm@FreeBSD.ORG Tue Sep 17 19:45:46 2013 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 6AC7F679 for ; Tue, 17 Sep 2013 19:45:46 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from mail-vb0-f43.google.com (mail-vb0-f43.google.com [209.85.212.43]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 22E582E0F for ; Tue, 17 Sep 2013 19:45:45 +0000 (UTC) Received: by mail-vb0-f43.google.com with SMTP id h11so4364876vbh.2 for ; Tue, 17 Sep 2013 12:45:39 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:subject:mime-version:content-type:from :in-reply-to:date:cc:content-transfer-encoding:message-id:references :to; bh=B9mgcGzEfdU2GZZ0p9xe4IzuXLULpSIQWHhmp8HMWzg=; b=J4OzNOLaWxcaz1kz8YNqEsNJHhcDlWnZa9hiRu+STmmy581Ii4t1j6ondzymzJyfXy DAWRTmtDMShj/pJ3/dpCUz9cHA1VhKyV8gyQpTcdK1Wc5MF4fNgIlEr87wnsejrDI5m2 SbEBmR0ZXWwATABXO/Ysj67HdvB0zWGAMNpYR7SF7TaQch69LEHSkK2uUzV/gmuoCFCh bR5aJMlZqAZKfrHi1DHG92+A/1dPzsfjmAOcgrlapmnptq1ZxJ/SLdCdHVieGQVQ1OSd YfOtbuTPaO0cEVIpjEMtPmQvfmiAtpmV43ckcyZVmanVFgM5TN5fZ8Kkrw41aPfQXqiz R4/w== X-Gm-Message-State: ALoCoQlF/ZZd4J3wOqrCcLCcR1nbT/34sRIKwNnmuxTlrZQSLgwSR7sT45QxmtMyMxCjZh9MxCjF X-Received: by 10.58.75.18 with SMTP id y18mr1743138vev.33.1379446723275; Tue, 17 Sep 2013 12:38:43 -0700 (PDT) Received: from fusionlt2834a.int.fusionio.com ([209.117.142.2]) by mx.google.com with ESMTPSA id eu2sm20338887vdc.2.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 17 Sep 2013 12:38:42 -0700 (PDT) Sender: Warner Losh Subject: Re: svn on armv5 with clang? (Fwd: svn commit: r254539 - head/usr.bin) Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: text/plain; charset=us-ascii From: Warner Losh In-Reply-To: <1379442285.1197.49.camel@revolution.hippie.lan> Date: Tue, 17 Sep 2013 13:38:40 -0600 Content-Transfer-Encoding: quoted-printable Message-Id: References: <201308191744.r7JHiJ00063824@svn.freebsd.org> <20130917190215.7093f261@bender.Home> <1379442285.1197.49.camel@revolution.hippie.lan> To: Ian Lepore X-Mailer: Apple Mail (2.1085) Cc: "freebsd-arm@freebsd.org" , Ronald Klop X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Sep 2013 19:45:46 -0000 On Sep 17, 2013, at 12:24 PM, Ian Lepore wrote: > On Tue, 2013-09-17 at 19:02 +0100, Andrew Turner wrote: >> On Tue, 17 Sep 2013 16:13:22 +0200 >> "Ronald Klop" wrote: >>=20 >>> Hi, >>>=20 >>> I am reading up on commits and found this one. Is ARMv5 capable of =20= >>> building the in-tree svn also? >>>=20 >> It is unlikely, I don't think we provide the required atomic = functions >> for ARMv5. On armv6 clang provides them, however I don't thing it = knows >> how to set up ARM_RAS_START. Without this we have to implement more = of >> the __sync_* functions for svn to work on ARMv5. I don't know of any >> plans to add them. >>=20 >=20 > I don't remember ever hearing about plans to *drop* support for armv4 > and v5, but with responses like that, that seems to be what's = underway. There were *NO* such plans, and if there are it is taking me by = surprise. ARM_RAS_START is critical to support armv4/5. I thought it was a = #define... no? Warner