sys_recvmsg
{ .sy_narg = AS(recvmsg_args), .sy_call = (sy_call_t *)sys_recvmsg, .sy_auevent = AUE_RECVMSG, .sy_flags = SYF_CAPENABLED, .sy_thrcnt = SY_THR_STATIC }, /* 27 = recvmsg */
int sys_recvmsg(struct thread *, struct recvmsg_args *);