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/xstatconv.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'libc/sysdeps/linux/common/xstatconv.c') diff --git a/libc/sysdeps/linux/common/xstatconv.c b/libc/sysdeps/linux/common/xstatconv.c index d50fbf9c3..4b0a7424e 100644 --- a/libc/sysdeps/linux/common/xstatconv.c +++ b/libc/sysdeps/linux/common/xstatconv.c @@ -37,12 +37,21 @@ void __xstat_conv(struct kernel_stat *kbuf, struct stat *buf) buf->st_size = kbuf->st_size; buf->st_blksize = kbuf->st_blksize; buf->st_blocks = kbuf->st_blocks; +#if defined(__UCLIBC_USE_TIME64__) + buf->st_atim.tv_sec = kbuf->__st_atim32.tv_sec; + buf->st_atim.tv_nsec = kbuf->__st_atim32.tv_nsec; + buf->st_mtim.tv_sec = kbuf->__st_mtim32.tv_sec; + buf->st_mtim.tv_nsec = kbuf->__st_mtim32.tv_nsec; + buf->st_ctim.tv_sec = kbuf->__st_ctim32.tv_sec; + buf->st_ctim.tv_nsec = kbuf->__st_ctim32.tv_nsec; +#else buf->st_atim.tv_sec = kbuf->st_atim.tv_sec; buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec; buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec; buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec; buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec; buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec; +#endif } void __xstat32_conv(struct kernel_stat64 *kbuf, struct stat *buf) @@ -59,12 +68,21 @@ void __xstat32_conv(struct kernel_stat64 *kbuf, struct stat *buf) buf->st_size = kbuf->st_size; buf->st_blksize = kbuf->st_blksize; buf->st_blocks = kbuf->st_blocks; +#if defined(__UCLIBC_USE_TIME64__) + buf->st_atim.tv_sec = kbuf->__st_atim32.tv_sec; + buf->st_atim.tv_nsec = kbuf->__st_atim32.tv_nsec; + buf->st_mtim.tv_sec = kbuf->__st_mtim32.tv_sec; + buf->st_mtim.tv_nsec = kbuf->__st_mtim32.tv_nsec; + buf->st_ctim.tv_sec = kbuf->__st_ctim32.tv_sec; + buf->st_ctim.tv_nsec = kbuf->__st_ctim32.tv_nsec; +#else buf->st_atim.tv_sec = kbuf->st_atim.tv_sec; buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec; buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec; buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec; buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec; buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec; +#endif } void __xstat64_conv(struct kernel_stat64 *kbuf, struct stat64 *buf) @@ -84,10 +102,19 @@ void __xstat64_conv(struct kernel_stat64 *kbuf, struct stat64 *buf) buf->st_size = kbuf->st_size; buf->st_blksize = kbuf->st_blksize; buf->st_blocks = kbuf->st_blocks; +#if defined(__UCLIBC_USE_TIME64__) + buf->st_atim.tv_sec = kbuf->__st_atim32.tv_sec; + buf->st_atim.tv_nsec = kbuf->__st_atim32.tv_nsec; + buf->st_mtim.tv_sec = kbuf->__st_mtim32.tv_sec; + buf->st_mtim.tv_nsec = kbuf->__st_mtim32.tv_nsec; + buf->st_ctim.tv_sec = kbuf->__st_ctim32.tv_sec; + buf->st_ctim.tv_nsec = kbuf->__st_ctim32.tv_nsec; +#else buf->st_atim.tv_sec = kbuf->st_atim.tv_sec; buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec; buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec; buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec; buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec; buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec; +#endif } -- cgit v1.2.3