From owner-freebsd-arm@FreeBSD.ORG  Mon Aug 16 10:32:02 2010
Return-Path: <owner-freebsd-arm@FreeBSD.ORG>
Delivered-To: freebsd-arm@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 369B01065696
	for <freebsd-arm@freebsd.org>; Mon, 16 Aug 2010 10:32:02 +0000 (UTC)
	(envelope-from andrew@fubar.geek.nz)
Received: from out1.smtp.messagingengine.com (out1.smtp.messagingengine.com
	[66.111.4.25]) by mx1.freebsd.org (Postfix) with ESMTP id 087E98FC13
	for <freebsd-arm@freebsd.org>; Mon, 16 Aug 2010 10:32:01 +0000 (UTC)
Received: from compute3.internal (compute3.internal [10.202.2.43])
	by gateway1.messagingengine.com (Postfix) with ESMTP id 5B30C338
	for <freebsd-arm@freebsd.org>; Mon, 16 Aug 2010 06:32:01 -0400 (EDT)
Received: from frontend1.messagingengine.com ([10.202.2.160])
	by compute3.internal (MEProxy); Mon, 16 Aug 2010 06:32:01 -0400
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=messagingengine.com;
	h=date:from:to:subject:message-id:mime-version:content-type:content-transfer-encoding;
	s=smtpout; bh=w2fx5PsQt8WFBcPS9QOyKcO2MRs=;
	b=q6Kx8cbiS+Ql6eOEBiR2vL8/KmI1fuxcQYHu7sYW5U1IItL3vgcvYoiNMbRx7dTPtgr1stpbRtU5kW8CZN+j1tj3PHw6Rpi/yEdKfxkg5Ut+Mo5tUxq4BdVL841/opjGVxUaWNbY1x586MCMY/ircLrUAttzCNtXpQaIVEBtYHg=
X-Sasl-enc: PbNmw7fKtnMug0Oawat1L9q0YZ0s8Zxr+gO+luNski1I 1281954720
Received: from localhost (8.241.69.111.dynamic.snap.net.nz [111.69.241.8])
	by mail.messagingengine.com (Postfix) with ESMTPA id 638354056D5
	for <freebsd-arm@freebsd.org>; Mon, 16 Aug 2010 06:32:00 -0400 (EDT)
Date: Mon, 16 Aug 2010 22:31:53 +1200
From: Andrew Turner <andrew@fubar.geek.nz>
To: freebsd-arm@freebsd.org
Message-ID: <20100816223153.31b36dba@fubar.geek.nz>
X-Mailer: Claws Mail 3.7.6 (GTK+ 2.20.1; i386-portbld-freebsd8.0)
X-Pirate: Arrrr
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Subject: Update syscall handling
X-BeenThere: freebsd-arm@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Porting FreeBSD to the StrongARM Processor <freebsd-arm.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/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: <http://lists.freebsd.org/mailman/listinfo/freebsd-arm>,
	<mailto:freebsd-arm-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 16 Aug 2010 10:32:02 -0000

As part of my work on getting the kernel running with the EABI I
updated how syscalls are handled to use the common
syscallenter/syscallret functions. I moved the arg parsing code to
cpu_fetch_syscall_args where it belongs and removed the duplicate code
from syscall to be replaced with syscallenter and syscallret.

I've tested on my LN2410SBC but would like a review before committing.

The td->td_ar == NULL check is from the original function. Do we still
need it? ARM appears to be the only arch with this check.

Andrew

[1] http://fubar.geek.nz/files/freebsd/freebsd-arm-syscall.diff