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Re: powerpc-rtems-4.7-gcc-4.0 patch commited



On Thu, 2005-02-17 at 21:00 +0300, Sergei Organov wrote:
> Ralf Corsepius <ralf.corsepius@rtems.org> writes:
> [...]
> > m505;@mcpu=505@mrelocatable-lib@mno-eabi@mstrict-align
> 
> To further qualify the current situation. There is mpc5xx CPU support in
> the tree that has nothing to do with mpc505/mpc509. Instead it targets
> mpc555 (and maybe mpc565 and mpc566) that are quite different from
> 505/509. If this multilib variant is supposed to support this mpc5xx
> port, I think it should use another name and mcpu= target.
You can not invent -mcpu=NAME's at free will. 

These names are hard-coded into GCC and you will have to choose one from
the set of NAMEs GCC offers to you.

> Well, in fact I don't think there will be any difference in compiled
> code if you change mcpu=505 to mcpu=555 as both seem to share the same
> core.

There is no mcpu=555 in GCC.

All I do now, is to offer an m505 multilib variant, because this variant
has been what mpc5xx users seem to have preferred to use for their BSPs.

Ralf