Add RT_USED definition for IAR
@@ -110,7 +110,7 @@ typedef rt_base_t rt_off_t; /**< Type for offset */
#include <stdarg.h>
#define SECTION(x) @ x
#define RT_UNUSED
- #define RT_USED
+ #define RT_USED __root
#define PRAGMA(x) _Pragma(#x)
#define ALIGN(n) PRAGMA(data_alignment=n)
#define WEAK __weak
