ksem_open_args
{ .sy_narg = AS(ksem_open_args), .sy_call = (sy_call_t *)lkmressys, .sy_auevent = AUE_NULL, .sy_flags = 0, .sy_thrcnt = SY_THR_ABSENT }, /* 405 = ksem_open */
struct ksem_open_args *p = params;
sys_ksem_open(struct thread *td, struct ksem_open_args *uap)
int sys_ksem_open(struct thread *, struct ksem_open_args *);