Hello, I am trying to implement a custom irq session, using the RPC call functions from genode irq_session header files. The code is here : https://gist.github.com/hs256/e6a72788b7471316e04e242fbf4e82e4 Can anyone, please suggest what can be the reasons for this kind of error : "undefined reference to vtable and typeinfo" ? Thank you very much.

Regards, Harsha Sharma