While booting from SD Card i am getting following error.

Can you please explain which procedure followed?

please follow below link to compile the uboot image

when i am doing make rugged_board_a5d2x_mmc1_defconfig

I am getting following error

cripts/kconfig/confdata.c: In function ‘conf_write’:

scripts/kconfig/confdata.c:771:22: warning: ‘%s’ directive writing likely 7 or more bytes into a region of size between 1 and 4097 [-Wformat-overflow=]

771 | sprintf(newname, "%s%s", dirname, basename);

| ^~

scripts/kconfig/confdata.c:771:19: note: assuming directive output of 7 bytes

771 | sprintf(newname, "%s%s", dirname, basename);

| ^~~~~~

In file included from /usr/include/stdio.h:867,

from scripts/kconfig/zconf.tab.c:77:

/usr/include/x86_64-linux-gnu/bits/stdio2.h:36:10: note: ‘__builtin___sprintf_chk’ output 1 or more bytes (assuming 4104) into a destination of size 4097

36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,

| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

37 | __bos (__s), __fmt, __va_arg_pack ());

| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In file included from scripts/kconfig/zconf.tab.c:2455:

scripts/kconfig/confdata.c:774:23: warning: ‘.tmpconfig.’ directive writing 11 bytes into a region of size between 1 and 4097 [-Wformat-overflow=]

774 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());

| ^~~~~~~~~~~

In file included from /usr/include/stdio.h:867,

from scripts/kconfig/zconf.tab.c:77:

/usr/include/x86_64-linux-gnu/bits/stdio2.h:36:10: note: ‘__builtin___sprintf_chk’ output between 13 and 4119 bytes into a destination of size 4097

36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,

| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

37 | __bos (__s), __fmt, __va_arg_pack ());

| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

HOSTLD scripts/kconfig/conf

#

# configuration written to .config

#

and then i am doing make

it generate boot.bin

but it is getting success.

Is it because of above warning

Please run the toolchain and follow below commands and try make mrproper make rugged_board_a5d2x_mmc1_defconfig make