[SOLVED] elf linking the plain stupid way

**heh** · 12-01-2008

main.c is exactly:

Code:

_start{}

compiled it with:

Code:

cc -c main.c
ld main.o -lc

problem when running:

Code:

./a.out

output to stderr:

Code:

bash: ./a.out: No such file or directory

What do I do to make it without crt objects?

Heh

**wje_lf** · 12-01-2008

When I created a file main.c that contained exactly this:

Code:

_start{}

and did this:

Code:

cc -c main.c

I got this stderr output:

Code:

main.c:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token

You won't get anywhere until you fix that.

Hope this helps.

**heh** · 12-01-2008

try using this:
main.s content:

Code:

	.text
.globl _start
_start:
	movl	$1, &#37;eax
	movl	$0, %ebx
	int		$0x80

make with:

Code:

as main.s -o main.o
ld main.o -lc

run:

Code:

./a.out

Still produces this stderr output

Code:

bash: ./a.out: No such file or directory

Heh

**heh** · 12-01-2008

SOLUTION:

People, don't link libc without ctr0.o. It bad for you.