Re: gdb remote debugging, other than serial port?

["William A. Gatliff" <bgat at billgatliff dot com>]

Craig:


Well, I don't know about FreeBSD, but on my RH73 box, my USB-serial
adapter didn't work.  I'm not sure the problem is with gdb, however,
as I didn't get minicom reliably to work either.  :^(

Here's a snap from my kernel log:

Jul  1 11:55:36 mars kernel: hub.c: USB new device connect on bus2/1/3, assigned device number 4
Jul  1 11:55:36 mars kernel: usb.c: USB device 4 (vend/prod 0x711/0x230) is not claimed by any active driver.
Jul  1 11:55:39 mars /etc/hotplug/usb.agent: Setup mct_u232 for USB product 711/230/102
Jul  1 11:55:39 mars kernel: usb.c: registered new driver serial
Jul  1 11:55:39 mars kernel: usbserial.c: USB Serial support registered for Generic
Jul  1 11:55:39 mars kernel: usbserial.c: USB Serial Driver core v1.4
Jul  1 11:55:39 mars kernel: usbserial.c: USB Serial support registered for Magic Control Technology USB-RS232
Jul  1 11:55:39 mars kernel: usbserial.c: USB Serial support registered for MCT/Sitecom USB-RS232
Jul  1 11:55:39 mars kernel: usbserial.c: MCT/Sitecom USB-RS232 converter detected
Jul  1 11:55:39 mars kernel: usbserial.c: MCT/Sitecom USB-RS232 converter now attached to ttyUSB0 (or usb/tts/0 for devfs)
Jul  1 11:55:39 mars kernel: usbserial.c: USB Serial support registered for MCT/D-Link DU-H3SP USB BAY
Jul  1 11:55:39 mars kernel: mct_u232.c: v1.1:Magic Control Technology USB-RS232 converter driver

But if I connect it on a null cable to ttyS0, I can't reliably send
data bidirectionally.  I've seen this problem before with the
usbserial driver, I gave up before figuring out what the problem
was...

Now I'm disappointed too.  Any ideas?


b.g.


On Sun, Jun 30, 2002 at 09:42:55AM -0400, Craig Rodrigues wrote:
> Hi,
> 
> I have a laptop computer, a Winbook N3:
> 
> http://www.winbookcorp.com/support/n3/n3_support.html 
> 
> I have Windows XP pre-installed on it, and am interested
> in installing either FreeBSD or Linux on a separate hard drive,
> and using gdb to do remote debugging on another host, for 
> kernel/device driver development.
> 
> This computer does not have a DB-9 or DB-25 serial port, but
> it does have ports for USB, Firewire, parallel, and PS/2 port.
> 
> Would I be able to use gdb for remote debugging over any of these
> ports?  I don't think I would be able to do remote debugging over
> Ethernet, because I am interested in debugging network protocol
> stacks.
> 
> Thanks.
> -- 
> Craig Rodrigues        
> http://www.gis.net/~craigr    
> rodrigc@attbi.com
> 

-- 
Bill Gatliff
bgat@billgatliff.com