root@ubuntu:/mnt/hgfs/ubuntuShare/006_uart_printf_011_005# make

arm-linux-gcc -c -o led.o led.c

arm-linux-gcc -c -o uart.o uart.c

arm-linux-gcc -c -o lib1funcs.o lib1funcs.S

arm-linux-gcc -c -o my_printf.o my_printf.c

arm-linux-gcc -c -o main.o main.c

arm-linux-gcc -c -o start.o start.S

arm-linux-ld -Ttext 0  -Tdata 0xe80 start.o led.o uart.o lib1funcs.o my_printf.o main.o -o uart.elf

my_printf.o: In function `out_num':

my_printf.c:(.text+0x11c): undefined reference to `__aeabi_uidivmod'

my_printf.c:(.text+0x14c): undefined reference to `__aeabi_uidiv'

Makefile:2: recipe for target 'all' failed

make: *** [all] Error 1

root@ubuntu:/mnt/hgfs/ubuntuShare/006_uart_printf_011_005#