138 void bt_info(const char *format, ...)  in bt_info()  argument
143 	va_start(args, format);  in bt_info()
145 	vaf.fmt = format;  in bt_info()
154 void bt_warn(const char *format, ...)  in bt_warn()  argument
159 	va_start(args, format);  in bt_warn()
161 	vaf.fmt = format;  in bt_warn()
170 void bt_err(const char *format, ...)  in bt_err()  argument
175 	va_start(args, format);  in bt_err()
177 	vaf.fmt = format;  in bt_err()
186 void bt_err_ratelimited(const char *format, ...)  in bt_err_ratelimited()  argument
191 	va_start(args, format);  in bt_err_ratelimited()
193 	vaf.fmt = format;  in bt_err_ratelimited()