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Re: function arguments offset computation with -fomit-frame-pointer

From: Andrew Pinski <pinskia at physics dot uc dot edu>
To: Hans-Peter Nilsson <hp at bitrange dot com>
Cc: Andrew Pinski <pinskia at physics dot uc dot edu>, Bernardo Innocenti <bernie at develer dot com>, gcc at gcc dot gnu dot org
Date: Wed, 9 Jul 2003 08:59:06 -0400
Subject: Re: function arguments offset computation with -fomit-frame-pointer

On Wednesday, Jul 9, 2003, at 08:26 US/Eastern, Hans-Peter Nilsson wrote:

On Wed, 9 Jul 2003, Bernardo Innocenti wrote:

 However, there must be still a bug somewhere because a Linux kernel
compiled with -fomit-frame-pointer crashes with bus errors in a place
I cannot reach with the debugger.


Please arrange to run the GCC test-suite instead.  It's usually
simpler than debugging crashed kernels.

I think the crash is because Linux depends on __builtin_frame_pointer which gives the wrong value if you use -fomit-frame-pointer; there is already a bug filed against gcc for that.

Thanks,
Andrew Pinski

Follow-Ups:
- Re: function arguments offset computation with -fomit-frame-pointer
  - From: Richard Earnshaw

References:
- Re: function arguments offset computation with -fomit-frame-pointer
  - From: Hans-Peter Nilsson

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