to get/set values of of `struct s_smx_simcall`;
* a simulation-kernel-side [big switch](https://github.com/simgrid/simgrid/blob/4ae2fd01d8cc55bf83654e29f294335e3cb1f022/src/simix/popping_generated.cpp#L106)
to get/set values of of `struct s_smx_simcall`;
* a simulation-kernel-side [big switch](https://github.com/simgrid/simgrid/blob/4ae2fd01d8cc55bf83654e29f294335e3cb1f022/src/simix/popping_generated.cpp#L106)