OK. So I figured out how to solve my problem. I will post my results and method below:
The module was compiled using ARCH=um of course, so it has debugging information right in the .ko file. I put a break point at __link_module (kernel/module.c:1775). I boot UML, and tell it to load my module. gdb breaks at the designated location. This is where UML has just loaded the module, and its about to add it to its list of modules. The actual module data (text+data) are stored in the module's 'module_core' member, since I need the address, I do: print ((struct mod *)mod)->module_core Then I take this address, and the name of my module from where I started gdb (the current working directory), and use the 'add-symbol-file' command, as indicated in the old module debugging HOWTO. add-symbol-file project/db-4.4.20.NC/build_unix/kbdbmodule.ko 0x11646000 gdb asks me if I want to add symbol table from the file, I say 'y' (yes). To test it out, I set a break point in the module: b kbdb.c:19 gdb now recognizes the file, and sets the breakpoint without complaining, Now to see if it stops in the right place: c gdb hits the breakpoint, and prints out the correct line of code corresponding to the line of code that is actually on line 19 of the kbdb.c file, so I know its working now. Thank you Blaiserblade for pointing me to the right function (sys_init_module), and thanks to the guy who wrote the old UML HOWTO for 2.4 so that I knew to use add-symbol-file. -- Rick [EMAIL PROTECTED] ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
