HUP               134 include/linux/poll.h 		M(HUP) | M(RDHUP) | M(MSG);
HUP               143 include/linux/poll.h 		M(HUP) | M(RDHUP) | M(MSG);
HUP                12 tools/perf/trace/beauty/signum.c 	P_SIGNUM(HUP);