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Old 08-06-2007, 09:58 PM   #1
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Assembly, "bash: ./exit: cannot execute binary file"


I am learning assembly from the book Programming from the ground up. I typed together the first program they listed, exit.s:
Code:
 .section .data

 .section .txt
 .globl _start
_start:
 movl $1, %eax	# this is the linux kernel command number (system call) for
		#  exiting a program
 movl $0, %ebx	# this is the status number we will return to the operating
		#  system. change this around and it will return different
		#  different things to "echo $?"
 int $0x80	# this wakes up the kernel to run the exit command
I assemble, and link it:
Code:
bash-3.1$ as exit.s -o exit.o
bash-3.1$ ld exit.o -o exit
Then I try to execute it:
Code:
bash-3.1$ ./exit 
bash: ./exit: cannot execute binary file
I was searching on google for this error, but no luck.

I am running slackware 12, have an HP laptop with an intel processor, if that helps.

So, does anyone have any ideas on how to solve this?
 
Old 08-06-2007, 11:01 PM   #2
thloh85
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Have you checked the permission?
ls -l
 
Old 08-07-2007, 01:34 AM   #3
colucix
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Just a far reminiscence, but I'd put
Code:
 .section .text
instead of .txt.
 
Old 08-07-2007, 08:18 AM   #4
Dox Systems - Brian
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Works fine for me, but I used ".section .text" as listed above...
 
Old 08-07-2007, 09:09 AM   #5
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Quote:
Originally Posted by colucix
Just a far reminiscence, but I'd put
Code:
 .section .text
instead of .txt.
Opps. I am so used to .txt, as in text files.

Thanks for that help.
 
  


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