Re: Unwind bug on out of line code called from leaf functions

From: David Mosberger <davidm_at_napali.hpl.hp.com>
Date: 2003-11-27 15:28:40
I forgot to mention this:

>>>>> On Thu, 27 Nov 2003 11:12:18 +1100, Keith Owens <kaos@sgi.com> said:

  Keith> I know that gcc 3.4 overcomes this problem by saving ar.pfs
  Keith> in leaf functions and using br.call.

gcc-3.3.2 also can handle ar.pfs clobbers, so we may just want to
update the kernel code to be a bit more premissive and not insist on
>= gcc-3.4.  I'm not exactly sure though when this got fixed, so
somebody would have to look into that first.

	--david
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Received on Wed Nov 26 23:29:18 2003

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