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Mail Archives: djgpp/2001/06/02/01:30:21

Date: Sat, 02 Jun 2001 08:28:00 +0300
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: Nate Eldredge <neldredge AT hmc DOT edu>
Message-Id: <3405-Sat02Jun2001082759+0300-eliz@is.elta.co.il>
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In-reply-to: <83y9rcc8hc.fsf@mercury.bitbucket> (message from Nate Eldredge on
01 Jun 2001 12:20:47 -0700)
Subject: Re: GDB and FSDB - getting x86 specific info (page tables, ldt, gdt)
References: <000b01c0ea24$55501dd0$e70610ac AT speakeasy DOT net> <2593-Fri01Jun2001085054+0300-eliz AT is DOT elta DOT co DOT il> <831yp4wusv DOT fsf AT mercury DOT bitbucket> <3405-Fri01Jun2001112310+0300-eliz AT is DOT elta DOT co DOT il> <83y9rcc8hc DOT fsf AT mercury DOT bitbucket>
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> From: Nate Eldredge <neldredge AT hmc DOT edu>
> Newsgroups: comp.os.msdos.djgpp
> Date: 01 Jun 2001 12:20:47 -0700
> > > > 
> > > > Please define ``dump memory''.  GDB generally displays memory
> > > > addresses as variables; if you mean ``dump memory'' the DEBUG.COM
> > > > style, then it cannot do that, even for memory that is part of the
> > > > normal DS selector addressable range.  
> > > 
> > > What about the `x' command?  That certainly can dump memory in a
> > > format rather like debug's.
> > 
> > Not without some tricky use of GDB advanced features, such as
> > ``artifical arrays''.
> 
> Huh?  A command like
> 
> x/32x 0xaddress
> 
> doesn't seem especially tricky or advanced to me.

This is not ``dumping memory'' in my book.  That's why I said (see
above) that GDB displays memory addresses as variables, meaning that
you can easily display the contents of an address interpreted as a
single int, or short, or double.  But ``dumping memory'' normally
means displaying a relatively large portion of memory between two
addresses.

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