Re: [OpenBIOS] ppc64 MMU issues

[Andreas Färber]

Am 16.11.2010 um 00:02 schrieb Segher Boessenkool:
> > > Who's responsible for r2 setup - GCC-generated code or QEMU?
> >
> > r2 contains the GOT IIRC. But for ABI questions, it's probably best  
> > to
> > consult Segher :). Unless I'm completely mistaken, usually the loader
> > initializes r2, so in this case the asm code needs to set it up  
> > properly.
>
> Depends what you call "loader".  Usually your crt1 equivalent sets  
> GPR2.
> It is probably a good idea to set it in all exception handlers as well
> (if they want to call C code, or need it otherwise).

But set it to what value? :)

Andreas