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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 /libpthread/nptl/pthread_mutex_trylock.c
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 'libpthread/nptl/pthread_mutex_trylock.c')
-rw-r--r--libpthread/nptl/pthread_mutex_trylock.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/libpthread/nptl/pthread_mutex_trylock.c b/libpthread/nptl/pthread_mutex_trylock.c
index e0d54bda7..ca02109ee 100644
--- a/libpthread/nptl/pthread_mutex_trylock.c
+++ b/libpthread/nptl/pthread_mutex_trylock.c
@@ -234,9 +234,15 @@ __pthread_mutex_trylock (
? PTHREAD_ROBUST_MUTEX_PSHARED (mutex)
: PTHREAD_MUTEX_PSHARED (mutex));
INTERNAL_SYSCALL_DECL (__err);
+#if defined(__UCLIBC_USE_TIME64__) && defined(__NR_futex_time64)
+ int e = INTERNAL_SYSCALL (futex_time64, __err, 4, &mutex->__data.__lock,
+ __lll_private_flag (FUTEX_TRYLOCK_PI,
+ private), 0, 0);
+#else
int e = INTERNAL_SYSCALL (futex, __err, 4, &mutex->__data.__lock,
__lll_private_flag (FUTEX_TRYLOCK_PI,
private), 0, 0);
+#endif
if (INTERNAL_SYSCALL_ERROR_P (e, __err)
&& INTERNAL_SYSCALL_ERRNO (e, __err) == EWOULDBLOCK)
@@ -276,10 +282,17 @@ __pthread_mutex_trylock (
mutex->__data.__count = 0;
INTERNAL_SYSCALL_DECL (__err);
+#if defined(__UCLIBC_USE_TIME64__) && defined(__NR_futex_time64)
+ INTERNAL_SYSCALL (futex_time64, __err, 4, &mutex->__data.__lock,
+ __lll_private_flag (FUTEX_UNLOCK_PI,
+ PTHREAD_ROBUST_MUTEX_PSHARED (mutex)),
+ 0, 0);
+#else
INTERNAL_SYSCALL (futex, __err, 4, &mutex->__data.__lock,
__lll_private_flag (FUTEX_UNLOCK_PI,
PTHREAD_ROBUST_MUTEX_PSHARED (mutex)),
0, 0);
+#endif
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
return ENOTRECOVERABLE;