sigqueue_args
{ .sy_narg = AS(sigqueue_args), .sy_call = (sy_call_t *)sys_sigqueue, .sy_auevent = AUE_NULL, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC }, /* 456 = sigqueue */
sys_sigqueue(struct thread *td, struct sigqueue_args *uap)
struct sigqueue_args *p = params;
int sys_sigqueue(struct thread *, struct sigqueue_args *);