getsid_args
{ AS(getsid_args), 4, (sy_call_t *)sys_getsid }, /* 310 = getsid */
sys_getsid(struct sysmsg *sysmsg, const struct getsid_args *uap)
int sys_getsid (struct sysmsg *sysmsg, const struct getsid_args *);
struct getsid_args getsid;