My Linux runes on x86 based SBC with custom build frame grabber and
data acquisition on PCI.
I am debugging undocumented codes which have been messed with from 10
persons in past 8 years. 
I can not set breakpoint and debug it on my machine as application
needs frame grabber, I/O and few more things.
I know remote debugging is possible on Ethernet. Can some one please
suggest how I can debug my application on my original hardware from
development machine on Ethernet?
Thanks in advance