从ccs3.3移植到ccs5.5后，使用boot_c671x_2.s62时编译出错

        .title  "Flash bootup utility"
            .option D,T
            .length 102
            .width  140 

; global EMIF symbols defined for the c671x family
            .include        boot_c671x.h62

            .sect ".boot_load"
            .global _boot
           
            .global _text_size
            .global _text_ld_start
            .global _text_rn_start
      
            
            .ref _c_int00