Re: [PATCH] Unify watch.S and remove arch/mips/lib-{32,64}

[Sergei Shtylyov <sshtylyov@ru.mvista.com>]

Hello.

Ralf Baechle wrote:

> > Unify lib-{32,64}/watch.S into lib/watch.S and remove lib-{32,64}
> > completely.
> > The old 64-bit __watch_set() expected an physical address and the old
> > 32-bit __watch_set() expected a KSEG0 virtual address.  The new
> > unified __watch_set() is based on the 64-bit one.  Since there is no
> > real user of the __watch_set(), this incompatibility would not cause
> > any problem.
> I think we can simply drop the entire watchpoint support.  This was
> only ever working on R4000/R4400 and even there only somewhat useful
> for kernel debugging.  So if we ever use watchpoint support I think
> something needs to be developed from scratch.
   Watchpoints *could* be supported as part of KGDB, BTW.

>   Ralf
WBR, Sergei