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From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: Unwind bug on out of line code called from leaf functions
Date: Thu, 27 Nov 2003 04:28:40 +0000	[thread overview]
Message-ID: <marc-linux-ia64-106990735800301@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106989195923088@msgid-missing>

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

  parent reply	other threads:[~2003-11-27  4:28 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-27  0:12 Unwind bug on out of line code called from leaf functions Keith Owens
2003-11-27  0:32 ` David Mosberger
2003-11-27  1:12 ` Keith Owens
2003-11-27  1:34 ` David Mosberger
2003-11-27  4:28 ` David Mosberger [this message]
2003-11-27  6:52 ` Jim Wilson
2003-12-11  1:21 ` David Mosberger

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