Accessing Wiggler from Linux GDB

Daris A Nevil dnevil@snmc.com
Thu Dec 23 12:29:00 GMT 1999


I would certainly be interested in using a PowerPC wiggler directly from Linux.
I am currently using the EST "wiggler" and Windows based debugger on a
custom MPC850 board running Linux.  The drawback is, however, that I
can only effectivly debug my boot code.  Once I hit the virtual memory
environment of Linux I loose the ability to control the different regions of
memory.

Daris Nevil
Simple Network Magic Corporation

Quality Quorum wrote:

> On Tue, 21 Dec 1999, Hans - Dulimarta wrote:
>
> >
> > I'd like to know whether anyone could share his/her success story
> > accessing Macraigor's wiggler from GDM running on Linux. I have tried the
> > following two methods without any good luck:
> >
> > 1. From gdb 4.18 by running "target ocd /dev/lp0; target ocd wiggler
> >    /dev/lp0". The debugger seemed to hang after printing the message
> >       "Remote target wiggler connected to /dev/lp0"
> >
> > 2. From Linux BDM-driver patched gdb mentioned in the Cross GCC FAQ.
> >    After running "target bdm /dev/bdm0" a kernel message
> >       "Device or resource busy" was displayed.
> >
> > Also, I'd like to hear from you who successfully accessed the Wiggler from
> > Cygwin GDB running on Win95/98 (not WinNT).
>
> I wrote extened gdbserver. It allows to attach various embedded targets
> to the remote machine. It is currently unix-only. Port to native WinNT
> and wiggler support is on the short list of stuff I was planned to do.
>
> It there is a real interest to provide linux/unix gdb connectivity to
> wiggler I can move this item up my priority list: I have everything to
> do the port: NT, wiggler, MPC860 target.
>
> You can get more information from.
>
> http://www.std.com/qqi/labslave/rproxy.html
>
> > Hans Dulimarta, Ph.D.        dulimart@[egr.msu.edu, computer.org]
>
> Thanks,
>
> Aleksey
>
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