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SubjectRe: Split kgdb into "lite" and "normal" parts
On Wed, Feb 25, 2004 at 12:27:03AM +0100, Pavel Machek wrote:

> Hi!
>
> > > > > Tested (core-lite.patch + i386-lite.patch + 8250.patch) combination.
> > > > > Looks good.
> > > > >
> > > > > Let's first check this in and then do more cleanups.
> > > > > Tom, does it sound ok?
> > > >
> > > > This sounds fine to me. Pavel, I'm guessing you did this with quilt,
> > > > could you provide some pointers on how to replicate this in the future?
> > >
> > > Unfortunately, I done it by hand :-(. But if -lite parts are not
> > > merged, soon, I'll be forced to start using quilt. Doing stuff by hand
> > > is quite painfull...
> >
> > There's still a whole bunch of bogons in the -lite patch still, so I
> > don't think it should be merged yet.
>
> Well, it seems to contains a *lot* less bogons than what currently is
> in -mm series.
>
> What big problems do you see? It does not yet use weak symbols, but I
> do not think that's a serious problem. What else?

The first two big ones are:
- Doesn't like gdb 6.0 (You cannot assume the first packet is Hc...)
- Wierdities with kgdb_killed_or_detached / kgdb_might_be_resumed
(both can die).
- All of the function pointer games (of which the weak symbols, but not
all of them) are a part of.
- Issues w/ handling 'D' and 'k' packets cleaner (and I think there was
a correctness fix in there, too, but it was a while ago).
- Don't ACK packets sitting on the line
- kgdb_schedule/process_breakpoint, required for kgdboe, harmless to use
on serial.

There's still a lot of stuff I checked into linux-2.6-kgdb that's
non-trivially important
(http://ppc.bkbits.net:8080/linux-2.6-kgdb/ChangeSet@-4w?nav=index.html)

--
Tom Rini
http://gate.crashing.org/~trini/
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