[U-Boot-Users] Fixup entries

Kenneth Johansson
2008-04-14T19:08:41Z

On Thu, 2008-04-10 at 01:03 +0200, Joakim Tjernlund wrote:
> > -----Original Message-----
> > From: kenneth johansson [mailto:kenneth at southpole.se]
> > I had this misconception that the GOT was all that was needed for
> > relocation.
> > Could not find any useful information on what rules apply to gcc and
> > binutils for handling stuff in this fixup section.
> >
> > Anybody have any information on this?
>
> Nope, never found anything either. To see a working one in u-boot, look at
> mpc83xx start.S and its linker scripts.
>
> Jocke
>
>

Found some code from gcc that do the relocation in the same way we want
in u-boot.

http://gcc.gnu.org/viewcvs/trunk/gcc/config/rs6000/eabi.asm?revision=130805&view=markup

I tried to call __eabi and link with libgcc plus ecrti.o, ecrtn.o but
in the end I had one silly undefined symbol(.Lfini) that I could not get
past the linker.

But I think copying that code over into u-boot could not hurt. And
considering the age of that code I can't imagine that anybody has a tool
chain that can't handle using the -mrelocatable. It would be nice to
remove the manual relocation done when it's not needed it is just
confusing.