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Re: patch to fix unwind info for ia64

From: David Mosberger <davidm at napali dot hpl dot hp dot com>
To: Roland McGrath <roland at redhat dot com>
Cc: davidm at hpl dot hp dot com, Ulrich Drepper <drepper at redhat dot com>,libc-hacker at sources dot redhat dot com
Date: Fri, 14 Nov 2003 13:12:47 -0800
Subject: Re: patch to fix unwind info for ia64
References: <16309.14674.769193.702247@napali.hpl.hp.com><200311142024.hAEKOLfT021792@magilla.sf.frob.com>
Reply-to: davidm at hpl dot hp dot com

>>>>> On Fri, 14 Nov 2003 12:24:21 -0800, Roland McGrath <roland@redhat.com> said:

  >> * sysdeps/unix/sysv/linux/ia64/sysdep.h
  >> (GAS_ALIGN_BREAKS_UNWIND_INFO): Define this macro to indicate
  >> that all existing GAS versions have a problem with .align inside
  >> a function.

  Roland> Is this fixed in mainline binutils?

No.

  Roland> Can you write a configure test to check for the bug rather
  Roland> than assuming it?

If you don't mind relying on readelf being installed, an automated
test would be possible.  But I'm not sure this issue will ever get
fixed.  Perhaps the "fix" will be just to issue an error when someone
uses .align inside .proc/.endp, so I'm not sure going to great lengths
with an automated test makes much sense at this point.

	--david

References:
- patch to fix unwind info for ia64
  - From: David Mosberger
- Re: patch to fix unwind info for ia64
  - From: Roland McGrath

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