When cat /sys/module/hellotest/sections/.text = 0x00000000
Try this way
gedit /root/project_board/free_imx/myandroid/kernel_imx/kernel/module.c
//in function module_sect_show
return sprintf(buf, "0x%pK\n", (void *)sattr->address);
//change to
return sprintf(buf, "0x%p\n", (void *)sattr->address);