[U-Boot-Users] warning:cannot find entry symbol _start

[Jhavk]

Hello, i want to make a standalone application which
is separate from the address space of uboot.

Its a simple hello_world application.For this to run i
needed the serial driver which i got from uboot/
cpu/arm920t/serial.c

For division i have got _udivsi3.S and div0.c files
from uboot.

I call serial_init in my main. 
I make hello_world.bin in a way similar to that in
uboot.

The only diifernece is that i compile with nostdlib
and static option.

This is my makefile :

CC              = arm-linux-gcc

OBJCOPY         = arm-linux-objcopy

CURDIR          = /home/pigfire/serial

INCS            = $(CURDIR)

CFLAGS          = -Wall -static -nostdlib -I$(INCS)

DEPS            = s3c2440.h speed.h

#########################################################################

All:            hello_world hello_world.srec
hello_world.bin

all:            $(ALL)

%.o:            %.c $(DEPS)
                $(CC) -c -o $@ $< $(CFLAGS)

hello_world:    hello_world.o _udivsi3.o div0.o
                $(CC) -o hello_world hello_world.o
_udivsi3.o div0.o $(CFLAGS) -I.

hello_world.srec:
                $(OBJCOPY) -O srec hello_world
hello_world.srec

hello_world.bin:
                $(OBJCOPY) -O binary hello_world
hello_world.bin 2>/dev/null

#########################################################################

clean:
                rm -f *.o hello_world *.a *.bin *.srec



But the problem is when i compile i get:

/usr/local/arm/2.95.3/arm-linux/bin/ld: warning:
cannot find entry symbol _start; defaulting to
00008074

And i get all three binaries.

But when i run hello_world.bin it hangs.

Why do i get this problem and why this problem does
not occur in hello_world example of uboot?

Regards,
Jhavk





		
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