RE: alpha -> ppc cross compiler

[David Korn <dkorn at pixelpower dot com>]

>-----Original Message-----
>From: Simon A Watts [mailto:simon.watts@marconi.com]
>Sent: 25 May 2001 10:33

>dkorn@pixelpower.com wrote:
>
>>> I have been trying to build a GCC 2.95.3 cross compiler, with
>>>   host=alpha-unknown-linux-gnu
>>>   target=powerpc-wrs-vxworks5.4.
>> 
>>> Minor SYNTAX BUG found in
>>> /gcc-2.65.3/gcc/config/rs6000/rs6000.c due to
>>> HOST_BITS_PER_WIDE_INT != 32
>> 
>> Ah, hang on a minute there.. are you trying to build 64 bit code
>> for your alpha, by any chance?
>
>
>AFAIK, it should be a cross-compiler for the alpha host, so 
>HOST_BITS_PER_WIDE_INT is 64 (?).  The compiler target is 
>powerpc.  So, 
>this is part of the xgcc and should be 64bit, but the xgcc produces 
>32bit for PPC?

  What I'm getting at is, isn't alpha one of those platforms that
has a 32-bit coding model and a 64-bit coding model, and there are
known codegen bugs with 2.95.x in generating code for the 64-bit model,
but the 32-bit model is OK, and everyone always gets told 'oh, you've
got to use V3 from CVS to make 64-bit work' ?

  Or was that some other CPU I'm thinking of ?

>Has anyone built a xgcc from alpha to powerpc?

  Not me guv :~O  I'm way outta my depth here...

       DaveK
-- 
*** RIP: Douglas Adams. So long, and thanks for all the books. ***


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