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From: sanchana <pradeep DOT sanchana AT gmail DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: GDB h/w support
Date: Mon, 10 Mar 2008 22:47:39 -0700 (PDT)
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On Jan 28, 12:49 pm, "Gerrit van Niekerk" <gerri DOT  DOT  DOT  AT gpvno DOT co DOT za>
wrote:
> Can anybody tell me in what module the low level GDB hardware support
> for DJGPP is implemented? I am talking about writing and reading the
> i386 debug registers. I have searched both the GDB and the DJGPP
> source code and just can't find it.
>
> The reason I want to know, is to implement h/w watchpoint support in
> a DJGPP GDB stub.
>
> BTW: I found and fixed a number of problems in gdbst01 (which does
> not work at all on current GDB versions) and got it working nicely
> using a TCP/IP connection between the DJGPP target and a specially
> configured Cygwin GDB on WinXP. The DJGPP target uses a proprietary
> TCP/IP product (Datalight Sockets).
>
> I would like to make the modified stub available to the DJGPP
> community for serial port use or TCP/IP use for Datalight customers.
> Perhaps someone can port it to an open source TCP/IP implementation.
> Thoughts?

the low level modules are written under gdb/ and sim/ subfolders i am
not sure about DJGPP but i can tel you u have to look into gdb folder..