쉘 코드 생성하기 질문입니다.

int main()
{
	char *name[2];
	name[0] = "/bin/sh";
	name[1] = 0;
	execve(name[0],name,NULL);
}

void main()
{
	__asm__("
 
		jmp	call
 
		shell:
		popl	%esi
		movl	%esi, 0x8(%esi)
		movb	$0x0, 0x7(%esi)
		movl	$0x0, 0xc(%esi)
		movl	$0xb, %eax
		movl	%esi, %ebx
		leal	0x8(%esi), %ecx
		leal	0xc(%esi), %ebx
		int	$0x80
		movl	$0x1, %eax
		movl	$0x0, %ebx
		int	$0x80
 
		call:
		call	shell
 
		.string	\"/bin/sh\"
		");
}