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Message
From: Jeremy Bennett<jeremy.bennett@e...>
Date: Wed Sep 24 14:30:17 CEST 2008
Subject: [openrisc] Problems building rtems toolchain
On Wed, 2008-09-24 at 12:09 +0200, ailia@l... wrote:
> Thank you very much for your help, Jeremy. The links you provided have
> proved to be immensely useful.
>
> I have successfully installed the ubuntu virtual image for vmware.
> However, upon running or1ksim, I get the following errors:
> /bin/sh: can't access tty; job control turned off
> serial8250: too much work for irq2
>
> I found out that I should replace the existing linux kernel 2.6.19
> with linux 2.6.22 but when I try to create a new folder in the opt
> folder where all the tools have been installed, i get a permission
> denied error. Is there any way I can get a write access to this folder?
Too much irq2 is known Linux problem. There is a patch for 2.6.19, which
partially fixes this problem. However I don't think that was available
when the VMWare image was created.
In fact there is linux 2.6.23 available for OpenRISC, which fixes this
problem under most circumstances. This is described in the new edition
of Embecosm Application note #2:
http://www.embecosm.com/download/ean2.html
The problem you have is with installation. I don't use the VMware image
myself, so I'm not familiar with how it works, but I presume you don't
have write permission to the /opt directory. If you have the super user
password, you could fix this with
su
chmod ugo+rwx /opt
Which will give everyone write permission to /opt. Otherwise you may be
able to just install it in your home folder.
You can certainly do this if you build the tool chain yourself (as
described in the application note). When you configure the tools, use
the --prefix option to configure to select a directory where the tools
should be installed. You can make this somewhere in your own file space.
For example if your home directory is /home/ailia, then you could use:
configure --target=/or32-uclinux --prefix=/home/ailia/or32
All the executables, libraries, info files etc will be stored
in /home/ailia/or32. You can add the binaries to your search path with:
export PATH=/home/ailia/or32/bin:$PATH (for sh or bash users)
setenv PATH /home/ailia/or32/bin:$PATH (for csh or tcsh users)
HTH,
Jeremy
--
Tel: +44 (1202) 416955
Cell: +44 (7970) 676050
SkypeID: jeremybennett
Email: jeremy.bennett@e...
Web: www.embecosm.com
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