while compiling for my lsi(arm7tdmi based) board i am getting some undefined references in cmd_flash.c like flash_print_info, flash_erase. i have included common.h(which includes flash.h) in the cmd_flash.c and in the flash.c also.

in flash.c i have given the definition for flash_print_info and flash_erase. Here in the following i am giving the snippets of the code where i am getting the error.

in cmd_flash.c - #include <common.h> .... flash_print_info (&flash_info[bank]); //here at this point i am getting undefined reference error

.......

in flash.h - ..... extern void flash_print_info (flash_info_t *);

in /board/flash.c -

void flash_print_info (flash_info_t *info) { int i; ...... }

can anybody please solve this problem