Single-stepping

[Stan Sieler]

Re:

> handlers you mention below.  Maybe using the recovery counter isn't such a

quite true.

> bad idea after all, especially since the added syscall and task switch
> overhead can be quite small if the kernel only supports single-step by
> one instruction.

why the limit?  We've used multi-instruction "single step" (oxymoron :)
for about 15 years on PA-RISC...no problems, efficient, and *very*
useful!
 
-- 
Stan Sieler                                           sieler@allegro.com
www.allegro.com/sieler/wanted/index.html                  www.sieler.com