:param abi: The abi to evaluate
        :return:    The largest syscall number known for the given abi

def maximum_syscall_number(self, abi):
        """
        :param abi: The abi to evaluate
        :return:    The largest syscall number known for the given abi
        """
        if abi not in self.syscall_number_mapping or \
                not self.syscall_number_mapping[abi]:
            return 0
        return max(self.syscall_number_mapping[abi])