From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Snyder <msnyder@cygnus.com>
To: John Hughes <john@Calva.COM>
Cc: Eli Zaretskii <eliz@is.elta.co.il>, gdb-patches@sourceware.cygnus.com
Subject: Re: Hardware watchpoints for UnixWare; based on snapshot 20010627
Date: Fri, 29 Jun 2001 14:15:00 -0000
Message-id: <3B3CEFD9.9E9221C1@cygnus.com>
References: <CDENKKMHIFMALMCCKPCFGEEGCAAA.john@Calva.COM>
X-SW-Source: 2001-06/msg00544.html

John Hughes wrote:
> 
> Eli Zaretskii writes:
> > From: "John Hughes" <john@Calva.COM>
> >> Interface between procfs.c and i386v42-nat.c is unclean,
> >> but I don't see how to do it better.
> >
> > Is there something that i386-nat.c could do to help?
> 
> I don't realy see how.  The problem is that
> 
> 1. the "i386v42mp-nat.c" (what a foul name!) code needs access to
>    the debug registers stored in the "pr_family" part of the
>    prstatus.pr_lwp structure, which is only known to procfs.c
> 
> 2. It also needs to issue a PCSDBREG command via procfs.
> 
> So it needs some horrid special access to stuff only procfs knows.

How about adding access methods to procfs.c explicitly
to export this functionality to i386*-nat.c?  I seem to 
recall we already have a few like that, and IMO it is 
better than many alternatives.