For certain? No, but I wouldn't expect it. Not sure what that function pointer in rdx is intended for, but Linux doesn't use it. (Note for pedants: rsp is tech

For certain? No, but I wouldn't expect it. Not sure what that function pointer in rdx is intended for, but Linux doesn't use it. (Note for pedants: rsp is technically a "general purpose register", but of course it is initialized to point to the userspace stack instead of zero.)