Stuart,
I read a pres release indicating that the product was free for use for
acadamia and personal use... However, when I go to you web site is says that
I need to purchase a deom version on CD. I would like to try your product
on RT-Linux...
Is there a way to download a free version from your web-site?
Thanks for any info this...
the article is http://216.88.73.6/stories/3907_flat.html
Zentropix Launches First-Ever "In-the-Kernel" Symbolic Debugger at
LinuxWorld
Mar 9th, 15:37:39
The Zentropix Remote Run-time Debugger (R2D2) has just been dramatically
extended to encompass applications running in kernel space, as well as user
space. This capability has not existed for any Unix application until now.
This is an extremely significant event for developers for whom run-time
performance is important.
The new version of the debugger affords the developer non-intrusive symbolic
access to parameters within real-time threads and processes, while they are
actually executing within the kernel. It is undergoing beta testing and
should be available for general distribution in April.
The R2D2 Debugger is available at no charge for personal and academic use,
and $199 per seat license for commercial developers.
For kernel based applications, such as device drivers, a run-time debugger
has not been available at all until now. As any programmer is aware, code
development within the kernel space is a dangerous endeavor which can only
too easily lead to a system lock-up. One of the major benefits of the
Zentropix System Builder, which is scheduled for release in Q3 '99, is to
allow code to be developed and debugged in the protected environment of user
space and then pushed down into kernel space once it is error free. For
examining such code once it is running in kernel space, the new R2D2 kernel
debugger becomes invaluable, allowing the developer to non-intrusively:
navigate the data structures
access memory locations using the symbolic references used in the source
code
examine data values in specific memory locations
change the data value in specific memory locations
conduct post run analysis (planned)
log specified events and code sequences for static post run analysis
(planned)
Conventional software debugging tools require the developer to place the
control of the software under the debugger, rather than the native execution
environment. Typically, the normal interrupt process is usurped and the
software execution is controlled by the debugger. The developer examines the
software via insertion of break-points, or by single-stepping through the
code.
For many applications this is sufficient. But, where dynamic interactions
during the run-time may be significant, this procedure has limitations.
Since the code is not running in its intended execution environment, dynamic
effects and behavior of the code interaction with other processes is not
accurately represented.
For example, if the application code was intended to control a servo motor,
the developer would not be able to investigate the behavior of the code and
the variables while the program was actually controlling the servo motor.
The Zentropix non-intrusive run-time debugger allows the developer to
observe servo motor behavior while adjusting the servo-loop feedback
parameters.
For more information, visit the Zentropix website at
http://www.zentropix.com/.
Return to today's headlines.
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Comments from readers:
rodger
-----Original Message-----
From: Stuart Hughes [mailto:[EMAIL PROTECTED]]
Sent: Saturday, September 11, 1999 5:57 AM
To: david lindauer
Cc: [EMAIL PROTECTED]
Subject: Re: [rtl] Debugging RT tasks
david lindauer wrote:
>
> Hi,
> What is the method for debugging tasks in the RT portion of the
> kernel? Is
> there any way to use existing linux debuggers on it?
>
> Thanks,
>
> David
Zentropix has been working on a technique that will let you use ddd/gdb
to debug kernel modules including RT modules. This requires a host
target setup, with an ethernet connection (for initiation) and a serial
cable for the "actual" debug.
Stuart Hughes, Zentropix
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