IBM405/Linux Cross compiler

IBM405/Linux Cross compiler

[Allen Curtis]

I have tried to build a cross compiler for the IBM405 processor under
Linux/x86. After much playing, I have decided that the problem is not a
compiler or linker problem but rather a configuration/installation issue.
The problem that I am having is that there are some 403/405 specific
pneumonics that are not recognized by the assembler. (as installed) The
problem appears to be that the option:

	-mcpu=403		->		-mppc
			should be		-m403

I solved this by modifying the "specs" file.

1. Is this the right solution?  I used the configuration options:

	--target=powerpc-linux --with-cpu=403

2. How do you change the configuration utility so that the correct "specs"
file is generated? This was built using 2.95.3. Inspecting the GCC files, it
appears that 3.0.4 has the same problem.

3. Where can I find documentation on the "specs" file?

TIA


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Re: IBM405/Linux Cross compiler

[Wolfgang Denk]

Dear Allen,

in message <NCBBIINEHIPFGJPLBEIFCEDLDJAA.acurtis@onz.com> you wrote:
>
> I have tried to build a cross compiler for the IBM405 processor under
> Linux/x86. After much playing, I have decided that the problem is not a
> compiler or linker problem but rather a configuration/installation issue.
> The problem that I am having is that there are some 403/405 specific
> pneumonics that are not recognized by the assembler. (as installed) The
> problem appears to be that the option:

You can download a complete and _working_ set  of  cross  and  native
tools  (our  ELDK = Embedded Linux Development Kit) for free; you can
also use our build scripts  and  patches  to  build  the  tools  from
scratch if you like - see the documentation at
http://www.denx.de/ELDK/

Hope this helps,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Business is like a wheelbarrow. Nothing ever happens until you  start
pushing.

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