question about 'r2' !!!

[Frank Rowand]

Michael Schmitz wrote:
>
> > > I am currently engaged in compiling Linux-ppc source tree using a CC other
> > > than GCC.
> >
> > May I ask you _why_ you want to do that?!?
>
> The mind fairly boggles. Anyway, once upon a time, current wasn't kept in
> a register but in memory. And if r2 won't do, just pick another register
> and tell the compiler not to touch it. Hope your compiler of choice has
> such a thing as --fixed-r2 ...
>
>         Michael
>

And if you want to use kgdb to debug your kernel, gdb knows that current is r2...

-Frank
--
Frank Rowand <frank_rowand at mvista.com>
MontaVista Software, Inc

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