eCos ships with a CygMon ROM monitor for the MN10300 and TX39 evaluation boards. This includes a GDB stub, thus allowing GDB to be used to debug eCos applications on these evaluation boards. In addition to shipping the actual ROM, we also provide the image of that ROM in case you need to burn identical copies for additional boards (see Chapter 12).
For the PowerPC Cogent board we provide a ROM image with a GDB stub. This allows GDB to connect to the board and download eCos programs. When an eCos program is run, the GDB stub in ROM loses control. This means that if you require debugging capabilities, you must include GDB stub support when configuring eCos.
The source code to CygMon is included as part of the GNUPro package, so that you may recompile it as described in the GNUPro documentation.
Please note that previous releases of CygMon are incompatible with eCos. You must use the version of CygMon that is provided with eCos rather than an older version of CygMon.