Sparc64 doesn't care about you, and you shouldn't care about Sparc64

[Adrian Chadd]

hiya,

We can build sparc64 using gcc-4.9 and gcc-5 right now. It may
actually even boot.

Is anyone willing to compile up a world/kernel and try booting them?

As bapt has said, the main shortcoming is a lack of compiler that
works as shipped in /usr/bin, so you need to build/install a package
for that to happen. But it'd be nice to verify that a gcc-5 world and
kernel do work.

Thanks,



-adrian


On 8 November 2015 at 18:18, Craig Butler <craig001 at lerwick.hopto.org> wrote:
> On Sun, 8 Nov 2015 18:43:39 -0700
> Warner Losh <imp at bsdimp.com> wrote:
>
>> On Sun, Nov 8, 2015 at 2:45 PM, Ed Maste <emaste at freebsd.org> wrote:
>>
>> > On 8 November 2015 at 20:46, Justin Hibbits <jrh29 at alumni.cwru.edu>
>> > wrote:
>> > >
>> > > I 100% agree with you on this.  If we can update binutils to the
>> > > latest and greatest, I believe powerpc64 would be able to work
>> > > with clang.  I've backported several patches, with IBM's
>> > > permission, to binutils for handling new relocations, etc.
>> > > However, not all patches are straight forward, and currently
>> > > we're missing something, which is causing odd segfaults in ld(1),
>> > > when linking as(1).  No other binary, only as(1).  I've tried
>> > > looking through it, but the binutils code is a mess.  I'm sure
>> > > the bug that's getting hit was fixed with newer binutils, but
>> > > have had a very hard time trying to test with it.
>> >
>> > We have support in the tree to use an external binutils
>> > automatically
>> > - we use this on arm64, which is completely unsupported by the
>> > in-tree binutils. External binutils is enabled by setting
>> > CROSS_BINUTILS_PREFIX=/usr/local/${TARGET_ARCH}-freebsd/bin/
>> >
>> > This happens automatically if the target specifies
>> > BINUTILS_BOOTSTRAP in BROKEN_OPTIONS -- for example, arm64 sets
>> > BROKEN_OPTIONS+=BINUTILS BINUTILS_BOOTSTRAP GCC GCC_BOOTSTRAP GDB
>> >
>> > I'd suggest that the first step in any of these discussions is to
>> > use this to test building with the binutils port. We know it won't
>> > work for mips today because upstream bintuils lacks FreeBSD/mips
>> > support. It may work for other targets though. Even if it doesn't
>> > the same work needs to be done regardless of whether the target
>> > uses an up-to-date binutils from ports or from the src tree.
>>
>>
>> Speaking of CROSS_BINUTILS_PREFIX, we need to unify CROSS*PREFIX stuff
>> with the CROSS_TOOLCHAIN stuff. Two different ways to specify thing.
>>
>> Warner
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>
> Hi Folks
>
> I am available to do the dogs work... test patches, compile etc etc.
> The last clang venture did not end well.
>
> Would like to help get a modern binutils and co going for sparc64.
>
> Kind Regards
>
> Craig Butler
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