crtstuff sentinels

[DJ Delorie]

> > The "-1" sentinal used for CTOR_LIST is not a representable address,
> > and the code gcc ends up using compares 0xffffffff (the -1) with
> > 0x00ffffff (what ends up in $a0) and it doesn't match.
> >
> > Suggestions?
> 
> Use ELF .init_array/.fini_array

I got distracted trying to support this (binutils fixes), but in the
end discovered that it won't (or doesn't seem to) work.  GCC still
builds the ctor/dtor array, but now it doesn't call it nor make it
available (the symbols are still in crtstuff, but they're not global).

Any other ideas?