All symbols starting with `u' in kern

• UDP_HOST_COMM_BASE kern/kdp_protocol.h:72
• UDP_HOST_EXCEP_BASE kern/kdp_protocol.h:73
• UDP_TTL kern/kdp_udp.c:81
• unix_master kern/parallel.c:45
• unix_release kern/parallel.c:61
• unix_reset kern/parallel.c:76
• UNLOCK_BUCKET kern/mach_net.c:311
• unlock_zone kern/zalloc.c:151
• unmap_vnode kern/mapfs.c:447
• UPDATE_MAPPED_TVALSPEC kern/clock.h:65
• update_priority kern/sched_prim.c:1181
• USAGE_THRESHOLD kern/priority.c:80
• u_task_zone kern/task.c:83
• u_thread_zone kern/thread.c:92