Re: [Xen-devel] [PATCH 11/34] xen/arm: Introduce __builtin_stack_pointer

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2014-03-25 at 16:55 +0000, Julien Grall wrote:
> Clang doesn't support named register. Introduce __builtin_stack_pointer
> to be able to use named register with gcc.

I think gcc considers the __builtin namespace to be its own, not sure
about clang.

I think get_stack_pointer() would be a fine name for this macro. It
seems like the clang version should work for both gcc and clang.

Google seems to suggest that __builtin_stack_pointer might become a real
compiler builtin at some point.



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