dwarf2 EH unwinding

[Jeffrey A Law]

  In message < vyzhgbdoil4.fsf@issan.informatik.uni-dortmund.de >you write:
  > Ah yes, i see.  Here is an updated patch that also fixes a bug with
  > DWARF_FRAME_REGNUM.  It seems to work quite well now, except for the
  > problem with the register sizes.
  > 
  > 
  > 1997-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>
  > 
  > 	* config/m68k/m68k.c (output_function_prologue): Add dwarf2 support.
  > 
  > 	* config/m68k/m68k.h (INCOMING_RETURN_ADDR_RTX,
  > 	DWARF_FRAME_REGNUM, INCOMING_FRAME_SP_OFFSET): New definitions.
Thanks.  I've installed this patch.  A couple minor nits though:

First, it looks like this patch was hand edited -- the line #s in
the last hunk for m68k.c were wrong (specified too many lines,
which caused patch to choke).

Second, there were some changes in here which just fix indention
problems -- in the future, send those as separate patches so that
it's easier to distinguish between real changes and just formatting
changes.

Thanks!
Jeff