[PATCH 0/4]: Assembler unification...

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This is just an FYI patch posting, I won't push this out to the
sparc-next-2.6 GIT tree until I go over it some more and do some
testing.

This series starts unifying assembler code that is essentially the
same on 32-bit and 64-bit.

The differences are mostly in the branch instructions, since sparc
64-bit has prediction, and branch-on-register instructions.

We fabricate this using some helper macros in a new asm/asm.h header
file.  We'll add new stuff there, as needed.

I also took the opportunity to get these files using the proper
linux/linkage.h macros to define function boundaries.
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