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47f24c21ee
A new build flag, _TIME_BITS, enables the usage of the newer 64-bit
time symbols for legacy ABI (where 32-bit time_t is default). The 64
bit time support is only enabled if LFS (_FILE_OFFSET_BITS=64) is
also used.
Different than LFS support, the y2038 symbols are added only for the
required ABIs (armhf, csky, hppa, i386, m68k, microblaze, mips32,
mips64-n32, nios2, powerpc32, sparc32, s390-32, and sh). The ABIs with
64-bit time support are unchanged, both for symbol and types
redirection.
On Linux the full 64-bit time support requires a minimum of kernel
version v5.1. Otherwise, the 32-bit fallbacks are used and might
results in error with overflow return code (EOVERFLOW).
The i686-gnu does not yet support 64-bit time.
This patch exports following rediretions to support 64-bit time:
* libc:
adjtime
adjtimex
clock_adjtime
clock_getres
clock_gettime
clock_nanosleep
clock_settime
cnd_timedwait
ctime
ctime_r
difftime
fstat
fstatat
futimens
futimes
futimesat
getitimer
getrusage
gettimeofday
gmtime
gmtime_r
localtime
localtime_r
lstat_time
lutimes
mktime
msgctl
mtx_timedlock
nanosleep
nanosleep
ntp_gettime
ntp_gettimex
ppoll
pselec
pselect
pthread_clockjoin_np
pthread_cond_clockwait
pthread_cond_timedwait
pthread_mutex_clocklock
pthread_mutex_timedlock
pthread_rwlock_clockrdlock
pthread_rwlock_clockwrlock
pthread_rwlock_timedrdlock
pthread_rwlock_timedwrlock
pthread_timedjoin_np
recvmmsg
sched_rr_get_interval
select
sem_clockwait
semctl
semtimedop
sem_timedwait
setitimer
settimeofday
shmctl
sigtimedwait
stat
thrd_sleep
time
timegm
timerfd_gettime
timerfd_settime
timespec_get
utime
utimensat
utimes
utimes
wait3
wait4
* librt:
aio_suspend
mq_timedreceive
mq_timedsend
timer_gettime
timer_settime
* libanl:
gai_suspend
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
201 lines
6.2 KiB
C
201 lines
6.2 KiB
C
/* Internal declarations for sys/timex.h.
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Copyright (C) 2014-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _INCLUDE_SYS_TIMEX_H
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#define _INCLUDE_SYS_TIMEX_H 1
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#include_next <sys/timex.h>
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# ifndef _ISOMAC
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extern int __adjtimex (struct timex *__ntx);
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libc_hidden_proto (__adjtimex)
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# include <time.h>
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# include <struct___timeval64.h>
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/* Local definition of 64 bit time supporting timex struct */
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# if __TIMESIZE == 64
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# define __timex64 timex
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# define __clock_adjtime64 __clock_adjtime
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# define ___adjtimex64 ___adjtimex
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# define __ntptimeval64 ntptimeval
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# define __ntp_gettime64 __ntp_gettime
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# define __ntp_gettimex64 __ntp_gettimex
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# else
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struct __timex64
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{
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unsigned int modes; /* mode selector */
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int :32; /* pad */
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long long int offset; /* time offset (usec) */
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long long int freq; /* frequency offset (scaled ppm) */
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long long int maxerror; /* maximum error (usec) */
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long long int esterror; /* estimated error (usec) */
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int status; /* clock command/status */
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int :32; /* pad */
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long long int constant; /* pll time constant */
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long long int precision; /* clock precision (usec) (read only) */
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long long int tolerance; /* clock frequency tolerance (ppm) (ro) */
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struct __timeval64 time; /* (read only, except for ADJ_SETOFFSET) */
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long long int tick; /* (modified) usecs between clock ticks */
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long long int ppsfreq; /* pps frequency (scaled ppm) (ro) */
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long long int jitter; /* pps jitter (us) (ro) */
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int shift; /* interval duration (s) (shift) (ro) */
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int :32; /* pad */
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long long int stabil; /* pps stability (scaled ppm) (ro) */
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long long int jitcnt; /* jitter limit exceeded (ro) */
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long long int calcnt; /* calibration intervals (ro) */
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long long int errcnt; /* calibration errors (ro) */
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long long int stbcnt; /* stability limit exceeded (ro) */
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int tai; /* TAI offset (ro) */
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int :32;
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int :32;
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int :32;
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int :32;
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int :32;
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int :32;
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int :32;
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int :32;
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int :32;
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int :32;
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int :32;
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};
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extern int __clock_adjtime64 (const clockid_t clock_id, struct __timex64 *tx64);
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libc_hidden_proto (__clock_adjtime64);
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extern int ___adjtimex64 (struct __timex64 *tx64);
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libc_hidden_proto (___adjtimex64)
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struct __ntptimeval64
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{
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struct __timeval64 time; /* current time (ro) */
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long int maxerror; /* maximum error (us) (ro) */
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long int esterror; /* estimated error (us) (ro) */
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long int tai; /* TAI offset (ro) */
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long int __glibc_reserved1;
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long int __glibc_reserved2;
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long int __glibc_reserved3;
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long int __glibc_reserved4;
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};
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extern int __ntp_gettime64 (struct __ntptimeval64 *ntv);
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libc_hidden_proto (__ntp_gettime64)
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extern int __ntp_gettimex64 (struct __ntptimeval64 *ntv);
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libc_hidden_proto (__ntp_gettimex64)
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# endif
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/* Convert a known valid struct timex into a struct __timex64. */
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static inline struct __timex64
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valid_timex_to_timex64 (const struct timex tx)
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{
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struct __timex64 tx64;
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tx64.modes = tx.modes;
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tx64.offset = tx.offset;
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tx64.freq = tx.freq;
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tx64.maxerror = tx.maxerror;
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tx64.esterror = tx.esterror;
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tx64.status = tx.status;
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tx64.constant = tx.constant;
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tx64.precision = tx.precision;
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tx64.tolerance = tx.tolerance;
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tx64.time = valid_timeval_to_timeval64 (tx.time);
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tx64.tick = tx.tick;
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tx64.ppsfreq = tx.ppsfreq;
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tx64.jitter = tx.jitter;
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tx64.shift = tx.shift;
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tx64.stabil = tx.stabil;
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tx64.jitcnt = tx.jitcnt;
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tx64.calcnt = tx.calcnt;
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tx64.errcnt = tx.errcnt;
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tx64.stbcnt = tx.stbcnt;
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tx64.tai = tx.tai;
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return tx64;
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}
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/* Convert a known valid struct __timex64 into a struct timex. */
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static inline struct timex
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valid_timex64_to_timex (const struct __timex64 tx64)
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{
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struct timex tx;
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tx.modes = tx64.modes;
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tx.offset = tx64.offset;
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tx.freq = tx64.freq;
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tx.maxerror = tx64.maxerror;
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tx.esterror = tx64.esterror;
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tx.status = tx64.status;
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tx.constant = tx64.constant;
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tx.precision = tx64.precision;
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tx.tolerance = tx64.tolerance;
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tx.time = valid_timeval64_to_timeval (tx64.time);
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tx.tick = tx64.tick;
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tx.ppsfreq = tx64.ppsfreq;
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tx.jitter = tx64.jitter;
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tx.shift = tx64.shift;
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tx.stabil = tx64.stabil;
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tx.jitcnt = tx64.jitcnt;
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tx.calcnt = tx64.calcnt;
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tx.errcnt = tx64.errcnt;
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tx.stbcnt = tx64.stbcnt;
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tx.tai = tx64.tai;
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return tx;
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}
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/* Convert a known valid struct ntptimeval into a struct __ntptimeval64. */
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static inline struct __ntptimeval64
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valid_ntptimeval_to_ntptimeval64 (const struct ntptimeval ntv)
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{
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struct __ntptimeval64 ntv64;
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ntv64.time = valid_timeval_to_timeval64 (ntv.time);
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ntv64.maxerror = ntv.maxerror;
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ntv64.esterror = ntv.esterror;
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ntv64.tai = ntv.tai;
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ntv64.__glibc_reserved1 = 0;
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ntv64.__glibc_reserved2 = 0;
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ntv64.__glibc_reserved3 = 0;
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ntv64.__glibc_reserved4 = 0;
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return ntv64;
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}
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/* Convert a known valid struct __ntptimeval64 into a struct ntptimeval. */
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static inline struct ntptimeval
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valid_ntptimeval64_to_ntptimeval (const struct __ntptimeval64 ntp64)
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{
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struct ntptimeval ntp;
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ntp.time = valid_timeval64_to_timeval (ntp64.time);
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ntp.maxerror = ntp64.maxerror;
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ntp.esterror = ntp64.esterror;
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ntp.tai = ntp64.tai;
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ntp.__glibc_reserved1 = 0;
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ntp.__glibc_reserved2 = 0;
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ntp.__glibc_reserved3 = 0;
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ntp.__glibc_reserved4 = 0;
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return ntp;
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}
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# endif /* _ISOMAC */
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#endif /* sys/timex.h */
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