Re: PPC64

[Manoel]

I was able to solve this thanks to  Hollis and Segher.

What was need was a flag to gcc ( -mlong-call) so that gcc puts indirect
branches instead of direct branches when needed to prevent the 32mb
limitation (as stated at gcc manpages).

My doubt is where is the best place to put this flag so that it will be
passed to all gcc calls by default?

On Mon, 2008-10-27 at 13:19 -0400, Pavel Roskin wrote:
> On Fri, 2008-10-24 at 19:53 -0200, Manoel wrote:
> > Changing the load-base worked in the P5 machine but when I tested in the
> > P6 machine I got the following message:
> >     Relocation overflow
> > In function  grub_arch_dl_relocate_symbols.
> > It means that I'm lacking memory?
> 
> No.  Look at the code.  For R_PPC_REL24, delta is shifted by 6 bits left
> and right and should stay the same.  It's a 32-bit signed integer.  The
> overflow would happen for positive numbers that exceed (0x7fffffff>>6)
> or 0x01ffffff.  A similar limit exists for negative numbers.  I suggest
> that you add some print statements to find out what's happening.
>