Patch to correct 64-bit DWARF info

[Joseph S. Myers]

Ping.  This patch 
<http://gcc.gnu.org/ml/gcc-patches/2006-03/msg01152.html> is still pending 
review.

> 2006-03-18  Joseph S. Myers  <joseph@codesourcery.com>
> 
> 	* dwarf2.h (DW64_CIE_ID): Define.
> 	* dwarf2out.c (DWARF_CIE_ID): Define.
> 	(output_call_frame_info): Output 0xffffffff before standard 8-byte
> 	length header.  Use DWARF_CIE_ID.
> 	(value_format): Use DW_FORM_data4 or DW_FORM_data8 for
> 	dw_val_class_loc_list depending on DWARF_OFFSET_SIZE.

-- 
Joseph S. Myers               http://www.srcf.ucam.org/~jsm28/gcc/
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