[PATCH] Fix bugs in sparc PLT profiling register management, and add sparc sotruss support.

[Roland McGrath]

> Along the way I noticed that sotruss's plt exit handler was printing
> the return value using the wrong format string.  It was using "0x%lu"
> instead of "0x%lx".  So that's fixed here too.

I always prefer %#lx instead.  That prints 0 instead of 0x0, and just seems
classier.


Thanks,
Roland