tag	line	file	source code
DAY	23	kernel/mktime.c	#define YEAR (365*DAY)
DAY	28	kernel/mktime.c	DAY*(31),
DAY	29	kernel/mktime.c	DAY*(31+29),
DAY	30	kernel/mktime.c	DAY*(31+29+31),
DAY	31	kernel/mktime.c	DAY*(31+29+31+30),
DAY	32	kernel/mktime.c	DAY*(31+29+31+30+31),
DAY	33	kernel/mktime.c	DAY*(31+29+31+30+31+30),
DAY	34	kernel/mktime.c	DAY*(31+29+31+30+31+30+31),
DAY	35	kernel/mktime.c	DAY*(31+29+31+30+31+30+31+31),
DAY	36	kernel/mktime.c	DAY*(31+29+31+30+31+30+31+31+30),
DAY	37	kernel/mktime.c	DAY*(31+29+31+30+31+30+31+31+30+31),
DAY	38	kernel/mktime.c	DAY*(31+29+31+30+31+30+31+31+30+31+30)
DAY	48	kernel/mktime.c	res = YEAR*year + DAY*((year+1)/4);
DAY	52	kernel/mktime.c	res -= DAY;
DAY	53	kernel/mktime.c	res += DAY*(time->day-1);