Cross compiling kernels.

Cross compiling kernels.

[Mark S. Mathews]

Hello,

I'm currently trying to build a cross compiler (hosted on x86) for
building PPC kernels to run on a single board computer with an MPC850
processor.  I've read a bunch of docs, built the cross compiler from
3 different source trees, and looked at a _bunch_ of kernel stuff (docs
and code). I still have a few unanswered questions:

1) What kernel version is recommended to run the MPC8xx processors?  I've
seen references to 2.1.129, but I'm not sure.

2) What compiler/binutils packages are considered 'best' for this?
The latest I've tried is binutils-2.9.1 and egcs 1.1b

3) Is there a recommended kernel release for running with the MPC8xx
processors?  i.e. on the Moto MBX boards?

TIA,
Mark


Mark S. Mathews

AbsoluteValue Software     Web:    http://www.absoval.com
P.O. Box 941149            e-mail: mark@absoval.com
Maitland, FL 32794-1149    Phone:  407.644.8582
USA                        Fax:    407.539.1294


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Re: Cross compiling kernels.

[Matt Porter]

On Wed, 9 Dec 1998, Mark S. Mathews wrote:

> I'm currently trying to build a cross compiler (hosted on x86) for
> building PPC kernels to run on a single board computer with an MPC850
> processor.  I've read a bunch of docs, built the cross compiler from
> 3 different source trees, and looked at a _bunch_ of kernel stuff (docs
> and code). I still have a few unanswered questions:

[snip]

> 2) What compiler/binutils packages are considered 'best' for this?
> The latest I've tried is binutils-2.9.1 and egcs 1.1b

See http://members.home.net/mmporter/cross.html

--
Matt Porter
mmporter@home.com
Unix is a Linux-like operating system.


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Re: Cross compiling kernels.

[Dan Malek]

Mark S. Mathews wrote:

> I'm currently trying to build a cross compiler (hosted on x86) for
> building PPC kernels.....

Has anyone been successful doing this?  I get personal
e-mail almost weekly from people either using gcc 2.x.x.x,
which we all know is incorrect, or having problems building
a cross egcs.  I use only egcs tools natively on LinuxPPC
machines, so I have no suggestions other than that.


> 1) What kernel version is recommended to run the MPC8xx processors?  I've
> seen references to 2.1.129, but I'm not sure.

I found a couple of minor bugs in 2.1.129 when I build it
for the MPC8xx.  Cort said he fixed them in 2.1.130, so
I would start with the latest vger CVS sources.


> 2) What compiler/binutils packages are considered 'best' for this?
> The latest I've tried is binutils-2.9.1 and egcs 1.1b

That's it.


> 3) Is there a recommended kernel release for running with the MPC8xx
> processors?  i.e. on the Moto MBX boards?

The original port was done on the MBX860 board, so that
always seems to work.   I have recently finished some 823/850
stuff and realized the configuration needs lots of work, so
I am doing that right now.  The major changes include
moving most of the CONFIG_MBX to generic CONFIG_8xx,
uart/serial driver configuration, the Ethernet configurable
on any SCC, and boot code changes.  I have one more board
to port next week, and I will dump the changes on Cort :-).

In my spare time I am trying to port the latest USB software
to the 850.  Anyone else interested, let me know.


    -- Dan



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Re: Cross compiling kernels.

[Matt Porter]

On Fri, 11 Dec 1998, Dan Malek wrote:

> Mark S. Mathews wrote:
> 
> > I'm currently trying to build a cross compiler (hosted on x86) for
> > building PPC kernels.....
> 
> Has anyone been successful doing this?  I get personal
> e-mail almost weekly from people either using gcc 2.x.x.x,
> which we all know is incorrect, or having problems building
> a cross egcs.  I use only egcs tools natively on LinuxPPC
> machines, so I have no suggestions other than that.

Don't use gcc!  See my web page at
http://members.home.net/mmporter/cross.html for instructions on building
cross development tools and the latest version to use.

--
Matt Porter
mmporter@home.com
Unix is a Linux-like operating system.


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