RISC-V glibc port v2

[Palmer Dabbelt]

On Wed, 20 Dec 2017 09:40:43 PST (-0800), joseph@codesourcery.com wrote:
> On Tue, 19 Dec 2017, Palmer Dabbelt wrote:
>
>> Thanks to everyone who has helped review the patch set!  I believe we've gone
>> through all the feedback from the first patch set.  Sorry if we've missed
>> anything, but at this point I think it'd be best to re-submit it -- it's been a
>> long time since the previous patch set.
>
> Apart from the points I've mentioned in comments on individual patches, as
> previously noted you need a c++-types.data ABI baseline or baselines.  And
> as previously noted a bits/environments.h header may be appropriate though
> not required.  And you're missing libm-test-ulps / libm-test-ulps-name
> files.

I don't think we need a bits/environments.h right now, but I think we will need 
one if we're going to support ILP32 on RV64I-based systems.  If I understand 
correctly, it's OK to add this file when we add the new ABI?

I'll add the libm-test-ulps* files, I just need to get the native test suite 
running to generate them.

Thanks for all the help!  My plan is to go through the remaining feedback on 
the v2 and then submit a v3 when build-many-glibcs.py passes all the tests, 
which I think I'm pretty close to having done.