[libffi] Provide unwind info for Tru64 UNIX in osf.S

[Rainer Orth]

Richard Henderson <rth@redhat.com> writes:

>> 2011-04-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
>> 
>> 	* src/alpha/osf.S (UA_SI, FDE_ENCODING, FDE_ENCODE, FDE_ARANGE):
>> 	Define.
>> 	Use them to handle ELF vs. ECOFF differences.
>> 	[__osf__] (_GLOBAL__F_ffi_call_osf): Define.
>
> Looks good.  If there are any hidden Linux problems, we can
> fix them up with another patch.

I've installed it on mainline now.  Unless 4.5 and 4.6 testing over the
weekend shows any problems, I'll install there, too.  The 4.5 branch
shouldn't be affected by the bug Uros mentioned, so the Linux side could
be tested there.

Thanks.
	Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University