taglinefilesource code
usec256kernel/time.cint sec, usec;
usec259kernel/time.cusec = get_fs_long(((unsigned long *)tv)+1);
usec268kernel/time.cusec -= do_gettimeoffset();
usec270kernel/time.cif (usec < 0)
usec272kernel/time.cusec += 1000000;
usec276kernel/time.cxtime.tv_usec = usec;