file(1) broken on sparc64

[Kris Kennaway]

On Tue, Feb 15, 2005 at 08:58:53AM -0800, David O'Brien wrote:
> On Tue, Feb 15, 2005 at 07:28:04AM -0800, Kris Kennaway wrote:
> > On Tue, Feb 15, 2005 at 03:37:28PM +0100, Koop Mast wrote:
> > > >I wonder if the problem is with worlds cross-built from i386.
> > > >Can you try a buildworld on i386 with TARGET_ARCH=sparc64 and see if
> > > >it still works?
> > > 
> > > I did a cross buildworld on a i386 machine, and copied the resulting
> > > file binary over to my sparc box. It works just like the native file
> > > binary. I even replaced libc.so.6 with the one from the cross build. But
> > > that also didn't change anything.
> > 
> > The problem turns out to be a mis-compiled /usr/share/misc/magic.mgc.
> > If you remove it (it is only used for runtime optimization), file(1)
> > works fine.  If you recreate it natively using file -C, it also works.
> 
> A-HA!
> Are all the file(1) problems you've mentioned only occurring for
> cross-arch builds?

Yes, as mentioned above.

> If this is the case, we can disable building magic.mgc if
> TARGET_ARCH != MACHINE_ARCH.

Or figure out what changed with the last import to break it.

> > AFAIK, the underlying reason hasn't been tracked down.
> 
> To date we've never guaranteed that a cross-arch built world is usable.
> We only officially support cross-arch compiles for compile testing.  There
> are other things in the tree that aren't size & endian-clean that prevent
> usable cross-arch release builds.

Release builds, yes.  Cross-built worlds have previously worked, and I
use them exclusively for non-i386 package builds.

Kris
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-sparc64/attachments/20050215/ba4c9dc9/attachment.bin