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Re: Support Xilinx PowerPC target boards


On Tue, Nov 18, 2008 at 08:56:20AM -0800, Michael Eager wrote:
> The attached patch adds default board configuration for
> --target=powerpc-xilinx-eabi.
> 
> -- 
> Michael Eager	 eager@eagercon.com
> 1960 Park Blvd., Palo Alto, CA 94306  650-325-8077


> 2008-11-18  Michael Eager <eager@eagercon.com>
> 
> 	* config/rs6000/xilinx.h: New, options for
> 	--target=powerpc-xilinx-eabi
> 	* config.gcc: Include xilinx.h

Rather than defining the defines in CPP_OS_DEFAULT_SPEC, it would be better to
define these in TARGET_OS_CPP_BUILTINS or TARGET_OS_SYSV_CPP_BUILTINS.  This
way, if the user uses the -std=<xxx> call, it will only define __FOO__, and if
the user doesn't use -std=<xxx>, it will define FOO and __FOO__.  Hopefully
Xilinx can change their header files to use either FOO or __FOO__ being
defined.

-- 
Michael Meissner, IBM
4 Technology Place Drive, MS 2203A, Westford, MA, 01886, USA
meissner@linux.vnet.ibm.com


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