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

[Craig Butler]

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