patch for PR 2632

[Ulrich Drepper]

On Fri, 2002-07-12 at 15:34, Philip Blundell wrote:
> 2002-07-12  Philip Blundell  <philb@gnu.org>
> 
> 	* sysdeps/generic/backtrace.c (FIRST_FRAME_POINTER): New macro.
> 	(__backtrace): Use it.
> 	* sysdeps/arm/frame.h (FIRST_FRAME_POINTER): Define.  [PR libc/2632]

Looks reasonable, I've applied it.  I wonder, though, why there is this
difference in gcc.  Is the value returned by __builtin_frame_address
useful for anything?

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