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Re: builtin_frame_address for stack pointer

From: skaller <skaller at users dot sourceforge dot net>
To: Andrew Pinski <pinskia at gmail dot com>
Cc: gcc at gcc dot gnu dot org
Date: Tue, 23 Oct 2007 16:10:17 +1000
Subject: Re: builtin_frame_address for stack pointer
References: <1193106487.6786.22.camel@rosella.wigram> <de8d50360710222258s460ad483pe0b3de964626f7c6@mail.gmail.com>

On Mon, 2007-10-22 at 22:58 -0700, Andrew Pinski wrote:
> On 10/22/07, skaller <skaller@users.sourceforge.net> wrote:
> > Unfortunately, this appears not to work if -fomit-frame-pointer
> > is used on an x86.
> 
> What version of GCC?  Since this was fixed for 4.1.0, see
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8335 .
> 
> Thanks,
> Andrew Pinski

Ah .. I do not know, it is not me that is having this problem
but another developer. I'll ask. Thanks for the info.

BTW: you say this is fixed, I read the bug info but am still
unclear of the resolution.. will __builtin_frame_pointer(0)
always return an approximation to the stack pointer now,
even if -fomit-frame-pointer is set?

-- 
John Skaller <skaller at users dot sf dot net>
Felix, successor to C++: http://felix.sf.net

References:
- builtin_frame_address for stack pointer
  - From: skaller
- Re: builtin_frame_address for stack pointer
  - From: Andrew Pinski

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