specify linux kernel module dependency when using jprobe

Question

I am building two linux kernel modules.

The second module (called debugging module hereafter) basically uses jprobe to intercept calling of functions inside the first module (called main module) and prints some states for debugging. They work pretty well. But I got one question on dependency for the debugging module on the main module.

Apparently, the debugging module depends on the main module, as when loading the debugging module without the main module loaded, I got error

"Unknown symbol in module, or unknown parameter"

However, it looks like that modules.dep could not figure it out. By looking at

nm -u <debugging_module.ko>

I did not find any unresolved symbol related to the main module. But jprobe needs function name from main module to intercept, and that is as string assigned for .kp.symbol_name in jprobe structure.

How can we specify dependency in this situation?