new syscall stub support for ia64 libc

[David Mosberger]

>>>>> On Wed, 12 Nov 2003 14:53:32 -0800, David Mosberger <davidm@linux.hpl.hp.com> said:


  David> - with nptl, make check shows failures in tst-cancel{6,9,17};
  David> I'll need to look into these as it's likely that I botched
  David> something in sysdep-cancel.h.

OK, I believe tst-cancel6 may be failing because cancellating the
victim thread fails to release the lock on the file that it's trying
to read from.  Is this test known to work for ia64 at all?  Is there a
good way to trace what's going on during cancellation?

	--david