From 8ea0140d5ffd2dc4ec0e36de71b67e6c1955f3cb Mon Sep 17 00:00:00 2001 From: Dmitry Chestnykh Date: Wed, 21 Feb 2024 19:08:28 +0300 Subject: 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 --- libc/sysdeps/linux/common/setitimer.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'libc/sysdeps/linux/common/setitimer.c') diff --git a/libc/sysdeps/linux/common/setitimer.c b/libc/sysdeps/linux/common/setitimer.c index 2febabbc8..eab541329 100644 --- a/libc/sysdeps/linux/common/setitimer.c +++ b/libc/sysdeps/linux/common/setitimer.c @@ -10,6 +10,38 @@ #include +#if defined(__UCLIBC_USE_TIME64__) + +struct itimerval32_struct { + __S32_TYPE __interval_sec; + __S32_TYPE __interval_usec; + __S32_TYPE __value_sec; + __S32_TYPE __value_usec; +}; + +int setitimer(__itimer_which_t which, const struct itimerval *restrict new, struct itimerval *restrict old) +{ + struct itimerval32_struct __itv32 = { + .__interval_sec = new->it_interval.tv_sec, + .__interval_usec = new->it_interval.tv_usec, + .__value_sec = new->it_value.tv_sec, + .__value_usec = new->it_value.tv_usec + }; + struct itimerval32_struct __itv32_old; + + int __ret = INLINE_SYSCALL(setitimer, 3, which, &__itv32, &__itv32_old); + if (__ret == 0 && old) { + old->it_interval.tv_sec = __itv32_old.__interval_sec; + old->it_interval.tv_usec = __itv32_old.__interval_usec; + old->it_value.tv_sec = __itv32_old.__value_sec; + old->it_value.tv_usec = __itv32_old.__value_usec; + } + + return __ret; +} +#else _syscall3(int, setitimer, __itimer_which_t, which, const struct itimerval *, new, struct itimerval *, old) + +#endif libc_hidden_def(setitimer) -- cgit v1.2.3