add vtable relocs for Alpha

[Ian Lance Taylor]

Andreas Jaeger <aj@suse.de> writes:

> > It should be rewritten to not use relocation entries.  Using
> > relocation entries requires changes to every single ELF target file.
> > 
> > Instead, the vtable information should be stored in special sections.
> > The linker should read the information out of those sections.  This
> > can be done in generic code in elflink.[ch].
> 
> Is any architecture doing it this way already?

No.  This should be written in a manner which causes all architectures
to start using it automatically.

> Or is this approach
> documented anywhere?

No.

Ian