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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-02-17 13:35:19 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-06-15 10:42:11 -0300 |
| commit | 47f24c21ee38701ae275aa9e451f70fa3e77478c (patch) | |
| tree | b4cc52206173fb2ed427a1e797769d12369a89ad /rt/aio.h | |
| parent | 8af344feb5ae3e6e3374a6cf2175b44cc904a94e (diff) | |
| download | glibc-47f24c21ee38701ae275aa9e451f70fa3e77478c.tar glibc-47f24c21ee38701ae275aa9e451f70fa3e77478c.tar.gz glibc-47f24c21ee38701ae275aa9e451f70fa3e77478c.tar.bz2 glibc-47f24c21ee38701ae275aa9e451f70fa3e77478c.zip | |
y2038: Add support for 64-bit time on legacy ABIs
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>
Diffstat (limited to 'rt/aio.h')
| -rw-r--r-- | rt/aio.h | 15 |
1 files changed, 12 insertions, 3 deletions
@@ -193,12 +193,17 @@ extern __ssize_t __REDIRECT_NTH (aio_return, (struct aiocb *__aiocbp), extern int __REDIRECT_NTH (aio_cancel, (int __fildes, struct aiocb *__aiocbp), aio_cancel64); - +# ifdef __USE_TIME_BITS64 +extern int __REDIRECT_NTH (aio_suspend, + (const struct aiocb *const __list[], int __nent, + const struct timespec *__restrict __timeout), + __aio_suspend_time64) __nonnull ((1)); +# else extern int __REDIRECT_NTH (aio_suspend, (const struct aiocb *const __list[], int __nent, const struct timespec *__restrict __timeout), aio_suspend64) __nonnull ((1)); - +# endif extern int __REDIRECT_NTH (aio_fsync, (int __operation, struct aiocb *__aiocbp), aio_fsync64) __nonnull ((2)); @@ -210,7 +215,11 @@ extern int __REDIRECT_NTH (aio_fsync, # define aio_error aio_error64 # define aio_return aio_return64 # define aio_cancel aio_cancel64 -# define aio_suspend aio_suspend64 +# ifdef __USE_TIME_BITS64 +# define aio_suspend __aio_suspend_time64 +# else +# define aio_suspend aio_suspend64 +# endif # define aio_fsync aio_fsync64 # endif #endif |