Using __kuser_cmpxchg

[David Daney]

Andrew Haley wrote:
> David Daney writes:
>  > 
>  > Am I missing something here?
>  > 
>  > Is it really impossible to implement compare_and_swap on these ARM 
>  > platforms?
> 
> No, but it is exceedingly difficult to do it *efficiently*.
> 

Right, I think you told me that once before.

I forget, is the arm-linuxeabi port of libgcj currently sacrificing 
correctness for speed?

David Daney