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Date: Wed, 22 Sep 2010 23:48:00 -0000
From: Oleg Nesterov <oleg@redhat.com>
To: "Frank Ch. Eigler" <fche@redhat.com>
Cc: archer@sourceware.org, utrace-devel@redhat.com
Subject: Re: gdbstub initial code, v11
Message-ID: <20100922234442.GA13379@redhat.com>
References: <20100922022226.GA27400@redhat.com> <y0m1v8lbfhu.fsf@fche.csb> <20100922231451.GA11198@redhat.com> <20100922233909.GF2727@redhat.com>
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On 09/22, Frank Ch. Eigler wrote:
>
> On Thu, Sep 23, 2010 at 01:14:51AM +0200, Oleg Nesterov wrote:
> >
> > When I do 'watch', gdb sends '$Z2'. I am a bit confused, iirc it
> > was decided I shouldn't play with Z packets now. But I won't
> > argue.
>
> There are Z packets and then there are Z packets.  The ones Roland
> told you not to worry about are Z0/Z1 related to (code) breakpoints,
> which should be implemented via uprobes at some point.
>
> The ones I'm talking about are Z2/Z3 for (data) watchpoints.

Ah, OK, thanks. I'll try to understand how this works.

Oleg.