binutils 2.27 [not working for powerpc64 (and powerpc?)]

[Mark Millard]

On 2016-Sep-20, at 1:59 PM, Dimitry Andric <dim at FreeBSD.org> wrote:

> Has anyone succeeded in bisecting upstream binutils, to see where this problem was introduced?
> 
> -Dimitry

Apparently not from what I've seen in the lists. It will be a couple/few weeks before I again have powerpc64 or powerpc access. I've just been monitoring powerpc64 & powerpc things in hopes of things working once I have access again --or at least my knowing what to do to sidestep issues and what sequence to progress in from what I had in very early 2016-June when I lost access temporarily.

May be someone will have the time & knowledge to bisect the upstream binutils materials. I may figure how to sometime after I get access again. But it is not the only FreeBSD powerpc64 (PowerMac) thing that I'd likely be investigating. (Example: because of problems with sprg0-value handling for FreeBSD vs. OpenFirmware on PowerMac powerpc64's: testing usefdt=1 mode for Nathan Whitehorn in hopes of future changes avoiding OpenFirmware use from FreeBSD. Nathan put the hooks in place for testing somewhat after I'd already lost access.)

I wonder if the various(?) binutil port(s) that are 2.27 based now and can be built to target powerpc64/powerpc should be marked broken for powerpc64/powerpc until this is figured out. Any ports that are only for targeting powerpc64 or powerpc probably should not be at 2.27 at this point.

I've submited a bugzilla report 212868 for devel/binutils with the text of the list reports that I've quoted.


> On 20 Sep 2016, at 22:56, Mark Millard <markmi at dsl-only.net> wrote:
>> 
>> The below forward from freebsd-pcc's list confirms that binutils 2.27 not working for powerpc64 (& powerpc?) contexts.
>> 
>> Note: Krzysztof Parzyszek is one of the two people that have recently been working on updating clang/llvm for fixing some of the issues that block FreeBSD from using clang for powerpc and powerpc64 for buildworld and buildkernel.
>> 
>> ===
>> Mark Millard
>> markmi at dsl-only.net
>> 
>> On 2016-Sep-20, at 11:19 AM, Krzysztof Parzyszek <kristof at swissmail.org> wrote:
>> 
>>> I've had similar problems after building gcc-4.8.  After reverting back to binutils 2.25 and rebuilding, it worked fine.
>>> 
>>> -Krzysztof
>>> 
>>> On 9/9/2016 11:32 AM, Bill Sorenson wrote:
>>>> Everything I've built with the new binutils using either GCC 4.9, 5.4 or
>>>> 6.2 instantly dumps when run. This is on an Xserve G5. Is this just me or
>>>> is there something genuinely broken here?
>>>> 
>>>> Thanks,
>>>> Bill


===
Mark Millard
markmi at dsl-only.net