Target-specific thread switching backend

[Daniel Jacobowitz]

On Wed, Dec 05, 2007 at 03:22:34PM +0000, Maciej W. Rozycki wrote:
>  It sounds worrying though, that the notion of the current thread within 
> GDB is changed freely somewhere when there is a dedicated call to switch 
> threads, hmm...

Yes, especially when all the thread IDs should be really be arguments
to these functions.  For instance, the global current_regcache is
silly; we should support more than one regcache live at a time.

-- 
Daniel Jacobowitz
CodeSourcery