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Re: README: ports switching to GCC 8.
On Sun, 17 Nov 2019, Michael L. Hitch wrote:
On Sun, 17 Nov 2019, matthew green wrote:
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
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.
OK, I was able to track down the commit that causes this failure, and it
was not obvious. The commit was revision 1.69 of sys/dev/i2c/i2c.c. This
resulted in attempting to configure amdtemp0 instead of gpio0. Reverting
this change results in a working kernel - both netbsd-9 (gcc7) and
So far, I've only booted a new kernel. I plan to install th whole
release on a disk to see that other things work.
Michael L. Hitch mhitch%montana.edu@localhost
Operations Consulting, University Information Technology
Montana State University, Bozeman, MT USA
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