RISC-V glibc port v2

[Joseph Myers]

On Wed, 20 Dec 2017, Palmer Dabbelt wrote:

> > But you also define dynamic linker names for the "f" ABI variants (lp64f,
> > ilp32f), so, as per my previous comments, those should be built by
> > build-many-glibcs.py and included in at least some testing.
> 
> Oh, sorry -- lp64f and ilp32f aren't going to be supported in glibc/Linux,
> just to reduce the number of ABI combinations.  I'll remove them from the v3.

That's fine, just make sure configure or preconfigure fragments give an 
error if you try to build with such an ABI variant (and then any other 
support for those ABIs can be removed or turn into errors as well).

-- 
Joseph S. Myers
joseph@codesourcery.com