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Mail Archives: djgpp/1999/04/13/12:25:26

From: "Barry Marks" <barry AT fbtc DOT net>
Newsgroups: comp.os.msdos.djgpp
References: <199904072135 DOT RAA23952 AT delorie DOT com>
Subject: Re: Debugging
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Date: Tue, 13 Apr 1999 10:53:53 -0500
To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

The first 2 can be done with either rhide or rhgdb, rhide's stand alone
debugger.

Barry

John Drabik wrote in message <199904072135 DOT RAA23952 AT delorie DOT com>...
>Hello,
> I hope you don't mind that I've contacted you directly,
>concerning some of the same debugging problems that have been noted in
>the djgpp discussion lists.  I am not sure who may be best equipped to
>answer these questions, or offer alternatives.  However, if an
>acceptable debugging alternative can be defined, it is probable that
>the company that I work for, Caldera Thin Clients, would pay to
>implement the required changes, AND would allow the code to be put into
>the public domain too.
>
> Here are some of the problems facing us: not all of them have
>to be addressed at once, but at least the first two points must be
>covered:
>
> 1) Graphic app debug (i.e., graphical app, switch the debugger
>to text mode), using Allegro
> 2) Source-level debug (C, C++, and Asm).
> 3) Mixed-mode (16-bit and 32-bit) debug support if possible.
>The 16-bit code is in Borland 3.1.  Two issues:
> A) using Borland Symbol and Map files with GDB
> B) supporting 16-bit apps (background TSRs mostly, but
>also some 3rd party libraries)
> 4) Remote debug, or debug redirection to a monochrome monitor,
>is highly desirable.
> 5) A separate "monitor" for debugging embedded systems, is also
>desireable.
>
> We looked at Rawhide (it can't remotely debug, and Rawhide is
>unable to load this rather large (1.5 MB without debug info, 4 MB with
>debug info) application.  It also appears to have problems with
>monochrome redirection, and it is unlikely that it might (eventually)
>help with the Borland problem.  A 16-bit code generator for DJGPP would
>be helpful here, and we could then drop Borland (perhaps - it depends
>on 3rd party tools such as SSL secure sockets, LWPSOCK TCP/IP, and
>others).  We'd be willing to work with Rawhide developers, also
>probably "for hire" with the results going to the public domain, but as
>they seem to rely on DJGPP anyway, why not start here first?
>
> I have successfully run Turbo Debugger and TDRemote on the
>application, but it doesn't provide source-level support for GCC (and
>the -S output of GCC doesn't intersperse the C source code, so it is of
>very limited value).  We have looked at some other 3rd-party debuggers
>too, but none of them come close to the combined source-level,
>mixed-mode, large-app, and graphic-mode requirements of our projects.
>
> Reviewing the mail archives, it appears that debug support is a
>common, and significant, problem for all DJGPP programmers, especially
>remote debugging and graphical apps.  Our additional problems of
>mixed-mode and mixed-tool environment exacerbate the situation.
>However, we feel that some improvement in the DJGPP debugging situation
>would benefit many programmers besides ourselves.
>
> If you are interested in pursuing this work, or if you know of
>a solution to the problems I've mentioned, please contact me so that we
>can setup a phone conversation or further e-mails.  If you are not
>interested, or if you feel that you are not knowledgeable enough to
>contribute to the solution, please let me know and I will remove your
>name from this list.  If you know of other programmers who might be
>interested, please let me know that too.
>
> Thank you for any help you can provide.
>
>Sincerely,
>John Drabik
>Caldera Thin Clients
>
>


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