diff options
| author | Dmitry Chestnykh <dm.chestnykh@gmail.com> | 2024-02-21 19:08:28 +0300 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2024-02-22 19:50:09 +0100 |
| commit | 8ea0140d5ffd2dc4ec0e36de71b67e6c1955f3cb (patch) | |
| tree | bbb3b38f991f4e194a79610eef089feaca9451f9 /libc/sysdeps/linux/common/bits/sem.h | |
| parent | a908621a934643f51a58042abcf1d1e42e281943 (diff) | |
Introduce time64 support.
This patch introduces *time64 syscalls support for uClibc-ng.
Currently the redirection of syscalls to their *time64
analogs is fully supported for 32bit ARM (ARMv5, ARMv6, ARMv7).
The main changes that take effect when time64 feature is enabled are:
- sizeof(time_t) is 8.
- There is a possibility os setting date beyond year 2038.
- some syscalls are redirected:
clock_adjtime -> clock_adjtime64
clock_getres -> clock_getres_time64
clock_gettime -> clock_gettime64
clock_nanosleep -> clock_nanosleep_time64
clock_settime -> clock_settime64
futex -> futex_time64
mq_timedreceive -> mq_timedreceive_time64
mq_timedsend -> mq_timedsend_time64
ppoll -> ppoll_time64
pselect6 -> pselect6_time64
recvmmsg -> recvmmsg_time64
rt_sigtimedwait -> rt_sigtimedwait_time64
sched_rr_get_interval -> sched_rr_get_interval_time64
semtimedop -> semtimedop_time64
timer_gettime -> timer_gettime64
timer_settime -> timer_settime64
timerfd_gettime -> timerfd_gettime64
timerfd_settime -> timerfd_settime64
utimensat -> utimensat_time64.
- settimeofday uses clock_settime (like in glibc/musl).
- gettimeofday uses clock_gettime (like in glibc/musl).
- nanosleep uses clock_nanosleep (like in glibc/musl).
- There are some fixes in data structures used by libc and kernel
for correct data handling both with and without enabled time64 support.
Signed-off-by: Dmitry Chestnykh <dm.chestnykh@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/common/bits/sem.h')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/sem.h | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/libc/sysdeps/linux/common/bits/sem.h b/libc/sysdeps/linux/common/bits/sem.h index 910c4b714..06a256259 100644 --- a/libc/sysdeps/linux/common/bits/sem.h +++ b/libc/sysdeps/linux/common/bits/sem.h @@ -39,17 +39,22 @@ struct semid_ds { struct ipc_perm sem_perm; /* operation permission struct */ - __time_t sem_otime; /* last semop() time */ -#if __WORDSIZE == 32 - unsigned long int __uclibc_unused1; -#endif - __time_t sem_ctime; /* last time changed by semctl() */ -#if __WORDSIZE == 32 - unsigned long int __uclibc_unused2; + + unsigned long int __sem_otime_internal_1; + unsigned long int __sem_otime_internal_2; + unsigned long int __sem_ctime_internal_1; + unsigned long int __sem_ctime_internal_2; +#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + unsigned short int sem_nsems; /* number of semaphores in set */ + char __paddind[sizeof(long int) - sizeof(short int)]; +#else + char __padding[sizeof(long int) - sizeof(short int)]; + unsigned short int sem_nsems; /* number of semaphores in set */ #endif - unsigned long int sem_nsems; /* number of semaphores in set */ unsigned long int __uclibc_unused3; unsigned long int __uclibc_unused4; + __time_t sem_otime; /* last semop() time */ + __time_t sem_ctime; /* last time changed by semctl() */ }; /* The user should define a union like the following to use it for arguments |