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Re: linux kernel building for mips malta target board

To: David Daney <ddaney@avtrex.com>
Subject: Re: linux kernel building for mips malta target board
From: Stuart Anderson <anderson@netsweng.com>
Date: Wed, 2 Nov 2005 21:20:35 -0500 (EST)
Cc: crossgcc@sources.redhat.com, MIPS Linux List <linux-mips@linux-mips.org>
In-reply-to: <436965B7.3000606@avtrex.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <E1EXLJV-0005R4-K3@real.realitydiluted.com> <43695DB4.7060708@avtrex.com> <Pine.LNX.4.61.0511022000410.3511@trantor.stuart.netsweng.com> <436965B7.3000606@avtrex.com>
Sender: linux-mips-bounce@linux-mips.org
On Wed, 2 Nov 2005, David Daney wrote:

__get_user() is unhappy, with tpyes that are "const". It uses __typeof()
to create a local variable that it wants to write to. I've intended to
have offer up a patch by now, but, too many unexpected thing have happened in the firs thalf of this week.

I shamed myself into sitting down and doing this. 8-)

The attached patch seems to work, or at least doesn't seem to cause
things to blow up. An o32 userspace on a 64-bit kernel comes up
multi-user and can build a kernel, and run a quick subset of LTP.

There was a comment on IRC that there was a register allocation issue which
lead to the current code. I'm not sure of the exact details, but I _think_
this change ends up being equivilent to the code it replaces.



                                Stuart

Stuart R. Anderson                               anderson@netsweng.com
Network & Software Engineering                   http://www.netsweng.com/
1024D/37A79149:                                  0791 D3B8 9A4C 2CDC A31F
                                                 BD03 0A62 E534 37A7 9149

Attachment: diff
Description: uaccess.h.patch

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