Set the default calling convention used for this library under a given architecture

        :param arch_name:   The string name of the architecture, i.e. the ``.name`` field from archinfo.
        :parm cc_cls:       The SimCC class (not an instance!) to use

def set_default_cc(self, arch_name, cc_cls):
        """
        Set the default calling convention used for this library under a given architecture

        :param arch_name:   The string name of the architecture, i.e. the ``.name`` field from archinfo.
        :parm cc_cls:       The SimCC class (not an instance!) to use
        """
        arch_name = archinfo.arch_from_id(arch_name).name
        self.default_ccs[arch_name] = cc_cls