/* Completion function for "frame function", "info frame function", and
"select-frame function" commands. */
-void
+static void
frame_selection_by_function_completer (struct cmd_list_element *ignore,
completion_tracker &tracker,
const char *text, const char *word)
static void
faas_command (const char *cmd, int from_tty)
{
+ if (cmd == NULL || *cmd == '\0')
+ error (_("Please specify a command to apply on all frames"));
std::string expanded = std::string ("frame apply all -s ") + cmd;
execute_command (expanded.c_str (), from_tty);
}