specify linux kernel module dependency when using jprobe -

i building 2 linux kernel modules.

the second module (called debugging module hereafter) uses jprobe intercept calling of functions inside first module (called main module) , prints states debugging. work pretty well. got 1 question on dependency debugging module on main module.

apparently, debugging module depends on main module, when loading debugging module without main module loaded, got error

"unknown symbol in module, or unknown parameter" 

however, looks modules.dep not figure out. looking at

nm -u <debugging_module.ko> 

i did not find unresolved symbol related main module. jprobe needs function name main module intercept, , string assigned .kp.symbol_name in jprobe structure.

how can specify dependency in situation?