On Wednesday 09 August 2006 20:53, Rick Spillane wrote: > OK. So I figured out how to solve my problem. I will post my results > and method below: Can you put the below content on the UML Wiki for future users? You're likely the 3rd asking this question in these days. It's at: http://uml.harlowhill.com/
> 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. -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade http://www.user-mode-linux.org/~blaisorblade Chiacchiera con i tuoi amici in tempo reale! http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com ------------------------------------------------------------------------- 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
