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authorDmitry Chestnykh <dm.chestnykh@gmail.com>2024-02-21 19:08:28 +0300
committerWaldemar Brodkorb <wbx@openadk.org>2024-02-22 19:50:09 +0100
commit8ea0140d5ffd2dc4ec0e36de71b67e6c1955f3cb (patch)
treebbb3b38f991f4e194a79610eef089feaca9451f9 /libc/sysdeps/linux/common/bits/sem.h
parenta908621a934643f51a58042abcf1d1e42e281943 (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.h21
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