Date: Sun, 12 Jul 1998 19:23:36 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Martin Str|mberg <ams AT ludd DOT luth DOT se>
cc: DJGPP-WORKERS <djgpp-workers AT delorie DOT com>
Subject: Re: info core dumps
In-Reply-To: <199807102026.WAA04313@father.ludd.luth.se>
Message-ID: <Pine.SUN.3.91.980712192306.27114P-100000@is>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Precedence: bulk


On Fri, 10 Jul 1998, Martin Str|mberg wrote:

> > If you mean to access data in segment other than DS, then you can't do
> > that in GDB directly.  You need to call a C function like dosmemget
> > for that, assuming that it's linked into the debugged program.
> > 
> > The same goes for selector data: call the appropriate C function from
> > the GDB prompt.
> 
> Hmm. But how do I get the base address as that function expects an
> argument of type 'int *'?

The easiest way is to write a wrapper that returns the value pointed
by the int *, and link it into your program.

> Another question, suppose ds's base address is 0x1000 and edx is
> 0x100, is the address edx points to 0x100 or 0x1100?

AFAIK, the linear address is 0x100, the logical address is 0x1100.