The Blackfin port

[Bernd Schmidt]

Analog Devices now has a blanket assignment for GCC, so I can contribute 
the Blackfin port.

This has a rather involved history: originally developed inside Analog, 
it was then worked on by various contractors, and now I've done what I 
could to clean it up and get it into shape for inclusion in the FSF 
mainline.

As far as I'm able to tell by comparing this to the original port 
written inside Analog, practically all code that was written by others 
has been removed to make sure the copyright situation is clear.  There 
are a couple of one-liners left, but these shouldn't be a problem.

We also have a port of binutils, but that hasn't yet been cleaned up 
sufficiently to be contributed.  It's available at 
http://blackfin.uclinux.org.

I would like to check this in on mainline, and on the 4.0 branch if 
that's ok with Mark.  I'll be away for a week or so which should give 
people ample time to object :)


Bernd
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