From owner-freebsd-arm@freebsd.org  Fri Apr 20 21:24:40 2018
Return-Path: <owner-freebsd-arm@freebsd.org>
Delivered-To: freebsd-arm@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id BD220FA35F3
 for <freebsd-arm@mailman.ysv.freebsd.org>;
 Fri, 20 Apr 2018 21:24:40 +0000 (UTC) (envelope-from jhb@freebsd.org)
Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org
 [IPv6:2001:1900:2254:206a::50:5])
 by mx1.freebsd.org (Postfix) with ESMTP id 5EA9A7F3BF
 for <freebsd-arm@freebsd.org>; Fri, 20 Apr 2018 21:24:40 +0000 (UTC)
 (envelope-from jhb@freebsd.org)
Received: by mailman.ysv.freebsd.org (Postfix)
 id 1AAFAFA35EF; Fri, 20 Apr 2018 21:24:40 +0000 (UTC)
Delivered-To: arm@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 086B1FA35ED
 for <arm@mailman.ysv.freebsd.org>; Fri, 20 Apr 2018 21:24:40 +0000 (UTC)
 (envelope-from jhb@freebsd.org)
Received: from mail.baldwin.cx (bigwig.baldwin.cx [IPv6:2001:470:1f11:75::1])
 (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id A5A0B7F3BC
 for <arm@freebsd.org>; Fri, 20 Apr 2018 21:24:39 +0000 (UTC)
 (envelope-from jhb@freebsd.org)
Received: from ralph.baldwin.cx (ralph.baldwin.cx [66.234.199.215])
 by mail.baldwin.cx (Postfix) with ESMTPSA id C8C9810A87D
 for <arm@freebsd.org>; Fri, 20 Apr 2018 17:24:38 -0400 (EDT)
From: John Baldwin <jhb@freebsd.org>
To: arm@freebsd.org
Subject: CFT: Userland atomic_fcmpset for armv4/v5
Date: Fri, 20 Apr 2018 14:24:32 -0700
Message-ID: <1886025.zXDUE1dX6p@ralph.baldwin.cx>
User-Agent: KMail/4.14.10 (FreeBSD/11.1-STABLE; KDE/4.14.30; amd64; ; )
MIME-Version: 1.0
Content-Transfer-Encoding: 7Bit
Content-Type: text/plain; charset="us-ascii"
X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3
 (mail.baldwin.cx); Fri, 20 Apr 2018 17:24:38 -0400 (EDT)
X-Virus-Scanned: clamav-milter 0.99.2 at mail.baldwin.cx
X-Virus-Status: Clean
X-BeenThere: freebsd-arm@freebsd.org
X-Mailman-Version: 2.1.25
Precedence: list
List-Id: "Porting FreeBSD to ARM processors." <freebsd-arm.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arm/>
List-Post: <mailto:freebsd-arm@freebsd.org>
List-Help: <mailto:freebsd-arm-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 20 Apr 2018 21:24:40 -0000

The arm and armeb buildworlds have been broken on HEAD for a while now due to
the lack of atomic_fcmpset_32() in userland.  I have a patch that adds an
implementation.  It compiles, but I have no way to test it.  I've also never
done ARM assembly before, so I'd rather not commit it without some qualified
review and/or testing.

https://reviews.freebsd.org/D15147

-- 
John Baldwin