extern int SHT$$INIT_ARRAY$$Limit;如何移植

#define STM32_FLASH   128
#define MCU_FLASH_SIZE        STM32_FLASH*1024
#ifdef __CC_ARM
extern int SHT$$INIT_ARRAY$$Limit;
#define MCU_FLASH_PRG_END     ((uint32_t)&SHT$$INIT_ARRAY$$Limit)
#endif
#define MCU_FLASH_BEGIN         0x8000000
#define MCU_FLASH_END           (0x8000000+MCU_FLASH_SIZE)
#define MCU_FLASH_USED          (MCU_FLASH_PRG_END - MCU_FLASH_BEGIN)
#define MCU_FLASH_REMAIND       (MCU_FLASH_END - MCU_FLASH_PRG_END)

Warning: L6330W: Undefined symbol SHT$$INIT_ARRAY$$Limit (referred from main.o). Unused section has been removed.