How to link C-code ISRs to the project?
You can use adi_int_InstallHandler API to install an interrupt handler for a given processor interrupt.
It is a valid API for system interrupts, core interrupts, NMI, and hardware exceptions.
For more information about Interrupt Handler, please refer the below CCES path for installing the interrupt.
CCES help>contents>CrossCore Embedded Studio 2.x.x > System Runtime Documentation > Interrupt Support.