Hi,

I'm trying to print "Hello" via system call.
Here is my code:

/* I don't know what header files I should add */
int
sys_hello(struct lwp *l, void *v, register_t *retval)
{
	struct sys_hello_args /* {
		syscallarg(int)	rval;
	} */ *uap = v;

	printf("Hello\n"); 
	return (0);
}

I'm not sure that using printf. In Linux, I can
use printk(), I don't know how to use in NetBSD.
Would anyone tell me? Thanks.

Regards,
Keichii.


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