;=================================================================================
; sys_execve demonstration. 
;
; Simply executes "./waitpid" while passing "foo" as argument.
;
; The LSCR Project. 
;=================================================================================

format ELF

include '../macros.inc'
include '../../include/symbols.inc'
include '../../include/structs.inc'

extrn error_chk

section '.text' executable 

public _start
_start:
        mov     eax, SYS_EXECVE
        mov     ebx, filename
        mov     ecx, argument_ptrs
        xor     edx, edx
        int     0x80
                                                		; if sys_execve succeeds it doesn't return
	ccall	error_chk, <"SYS_EXECVE has failed: ">, exit	; so if we came here, it has failed.

exit:   mov	eax, SYS_EXIT
	xor	ebx, ebx
	int	0x80


section '.data' writeable

filename        db "./waitpid",0

argument_ptrs   dd argument0, argument1, 0

argument0       db "./execve",0
argument1       db "foo",0