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/gettimeofday.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'libc/sysdeps/linux/common/gettimeofday.c') diff --git a/libc/sysdeps/linux/common/gettimeofday.c b/libc/sysdeps/linux/common/gettimeofday.c index d9cf3bb84..ed18b2be5 100755 --- a/libc/sysdeps/linux/common/gettimeofday.c +++ b/libc/sysdeps/linux/common/gettimeofday.c @@ -8,12 +8,12 @@ #include #include +#include #ifdef __VDSO_SUPPORT__ #include "ldso.h" #endif - #ifdef __VDSO_SUPPORT__ typedef int (*gettimeofday_func)(struct timeval * tv, __timezone_ptr_t tz); #endif @@ -29,7 +29,14 @@ int gettimeofday(struct timeval * tv, __timezone_ptr_t tz) { _syscall2_body(int, gettimeofday, struct timeval *, tv, __timezone_ptr_t, tz) } #else - _syscall2_body(int, gettimeofday, struct timeval *, tv, __timezone_ptr_t, tz) + if (!tv) + return 0; + + struct timespec __ts; + int __ret = clock_gettime(CLOCK_REALTIME, &__ts); + tv->tv_sec = __ts.tv_sec; + tv->tv_usec = (suseconds_t)__ts.tv_nsec / 1000; + return __ret; #endif } -- cgit v1.2.3