Re: README: ports switching to GCC 8.

["Michael L. Hitch" <mhitch%NetBSD.org@localhost>]

On Sun, 17 Nov 2019, matthew green wrote:

> hi folks.
>
>
> i've recently switched sparc* to GCC 8 and will be soon
> switching powerpc.  just running a few more tests to
> ensure builds should work.
>
> you'll probably need to do a clean build, though at least
> tools/gcc itself will be OK.
>
> as always, please send-pr or email me with issues related
> to this.

  I tried to boot a sparc64 kernel that I think was built after the switch 
on an Ultra 45, and it fails to find any disks.  I see the same problem 
with a netbsd-9 branch kernel.  This looks very similar to PR 
port-sparc64/54211, except that mine is an mtp controller.  That PR was 
after sparc64 was switched to GCC 7, so my first instinct is the problem 
may be due to GCC 7 and GCC 8.  I haven't had any time to do any debugging 
yet, but hope to work on it soon.

  One thing I did note is that both the netbsd-9 kernel and the current 
kernel boot on my Ultra 45 without crashing in the audio driver that 
started when sparc64 was switched to GCC 6.

Miken


---
Michael L. Hitch                        mhitch%NetBSD.org@localhost
Operations Consulting,  University Information Technology
Montana State University, Bozeman, MT     USA