file(1) broken on sparc64
obrien at FreeBSD.org
Tue Feb 15 16:58:59 GMT 2005
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.
Are all the file(1) problems you've mentioned only occurring for
cross-arch builds? If this is the case, we can disable building
magic.mgc if TARGET_ARCH != MACHINE_ARCH.
> 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.
-- David (obrien at FreeBSD.org)
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