libgfortran.so SONAME and powerpc64le-linux ABI changes

[Joseph Myers]

On Wed, 6 Oct 2021, Segher Boessenkool wrote:

> > There's still some code in the compiler for a very old soft-float ABI for 
> > binary128 long double (passing by reference, using _q_* libcall names).  I 
> > don't really think it makes much sense to use that for future _Float128 
> > support for soft-float (certainly not the _q_* libcalls), rather than 
> > passing in four consecutive GPRs as is done for IBM long double for soft 
> > float, but we could.
> 
> Maybe this harks back to POWER2 days?  If so, we probably should just
> remove that code, we do not support anything else POWER2 anymore.

The _q_* names and associated ABI are in the 1995 SunSoft PowerPC ABI 
(which I suppose was the ABI for PowerPC Solaris).

-- 
Joseph S. Myers
joseph@codesourcery.com