y2038: Add support for 64-bit time on legacy ABIs

System Internals / glibc - Adhemerval Zanella [linaro.org] - 15 June 2021 13:42 UTC

A new build flag, _TIME_BITS, enables the usage of the newer 64-bit time symbols for legacy ABI (where 32-bit time_t is default). The 64 bit time support is only enabled if LFS (_FILE_OFFSET_BITS=64) is also used.

Different than LFS support, the y2038 symbols are added only for the required ABIs (armhf, csky, hppa, i386, m68k, microblaze, mips32, mips64-n32, nios2, powerpc32, sparc32, s390-32, and sh). The ABIs with 64-bit time support are unchanged, both for symbol and types redirection.

On Linux the full 64-bit time support requires a minimum of kernel
version v5.1. Otherwise, the 32-bit fallbacks are used and might results in error with overflow return code (EOVERFLOW).

The i686-gnu does not yet support 64-bit time.

This patch exports following rediretions to support 64-bit time:

- libc: adjtime adjtimex clock_adjtime clock_getres clock_gettime clock_nanosleep clock_settime cnd_timedwait ctime ctime_r difftime fstat fstatat futimens futimes futimesat getitimer getrusage gettimeofday gmtime gmtime_r localtime localtime_r lstat_time lutimes mktime msgctl mtx_timedlock nanosleep nanosleep ntp_gettime ntp_gettimex ppoll pselec pselect pthread_clockjoin_np pthread_cond_clockwait pthread_cond_timedwait pthread_mutex_clocklock pthread_mutex_timedlock pthread_rwlock_clockrdlock pthread_rwlock_clockwrlock pthread_rwlock_timedrdlock pthread_rwlock_timedwrlock pthread_timedjoin_np recvmmsg sched_rr_get_interval select sem_clockwait semctl semtimedop sem_timedwait setitimer settimeofday shmctl sigtimedwait stat thrd_sleep time timegm timerfd_gettime timerfd_settime timespec_get utime utimensat utimes utimes wait3 wait4

- librt: aio_suspend mq_timedreceive mq_timedsend timer_gettime timer_settime

- libanl: gai_suspend

47f24c21ee y2038: Add support for 64-bit time on legacy ABIs
Makefile | 2 +-
NEWS | 5 +
include/features-time64.h | 1 +
include/features.h | 2 +
io/sys/poll.h | 11 ++
io/sys/stat.h | 113 +++++++++++++++--
io/utime.h | 11 ++
manual/creature.texi | 44 +++++++
misc/sys/select.h | 27 ++++
nptl/pthread_clockjoin.c | 3 +-
nptl/pthread_cond_wait.c | 9 +-
nptl/pthread_mutex_timedlock.c | 8 +-
nptl/pthread_rwlock_clockrdlock.c | 4 +-
nptl/pthread_rwlock_clockwrlock.c | 4 +-
nptl/pthread_rwlock_timedrdlock.c | 4 +-
nptl/pthread_rwlock_timedwrlock.c | 4 +-
nptl/pthread_timedjoin.c | 3 +-
nptl/sem_clockwait.c | 3 +-
nptl/sem_timedwait.c | 4 +-
posix/sched.h | 11 +-
posix/sys/wait.h | 20 +++
resolv/netdb.h | 11 ++
resource/sys/resource.h | 10 ++
rt/aio.h | 15 ++-
rt/mqueue.h | 22 ++++
signal/signal.h | 13 ++
socket/sys/socket.h | 11 ++
sysdeps/generic/features-time64.h | 19 +++
sysdeps/generic/time64-compat.h | 3 +
sysdeps/nptl/pthread.h | 119 ++++++++++++++++++
sysdeps/pthread/semaphore.h | 25 ++++
sysdeps/pthread/threads.h | 33 +++++
sysdeps/unix/sysv/linux/Makefile | 3 +
sysdeps/unix/sysv/linux/Versions | 97 +++++++++++++++
sysdeps/unix/sysv/linux/arm/be/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/arm/be/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/arm/be/librt.abilist | 5 +
sysdeps/unix/sysv/linux/arm/le/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/arm/le/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/arm/le/librt.abilist | 5 +
sysdeps/unix/sysv/linux/arm/time64-compat.h | 2 +
sysdeps/unix/sysv/linux/bits/msq.h | 1 +
sysdeps/unix/sysv/linux/bits/sem.h | 1 +
sysdeps/unix/sysv/linux/bits/shm.h | 1 +
sysdeps/unix/sysv/linux/bits/time.h | 10 ++
sysdeps/unix/sysv/linux/cnd_timedwait.c | 8 +-
sysdeps/unix/sysv/linux/csky/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/csky/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/csky/librt.abilist | 5 +
sysdeps/unix/sysv/linux/csky/time64-compat.h | 2 +
sysdeps/unix/sysv/linux/features-time64.h | 37 ++++++
sysdeps/unix/sysv/linux/hppa/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/hppa/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/hppa/librt.abilist | 5 +
sysdeps/unix/sysv/linux/hppa/time64-compat.h | 2 +
sysdeps/unix/sysv/linux/i386/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/i386/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/i386/librt.abilist | 5 +
sysdeps/unix/sysv/linux/i386/time64-compat.h | 2 +
sysdeps/unix/sysv/linux/include/sys/msg.h | 2 -
sysdeps/unix/sysv/linux/include/sys/shm.h | 2 -
sysdeps/unix/sysv/linux/include/sys/timex.h | 1 +
.../unix/sysv/linux/m68k/coldfire/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist | 67 ++++++++++
.../unix/sysv/linux/m68k/coldfire/librt.abilist | 5 +
sysdeps/unix/sysv/linux/m68k/m680x0/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/m68k/m680x0/librt.abilist | 5 +
sysdeps/unix/sysv/linux/m68k/time64-compat.h | 2 +
.../unix/sysv/linux/microblaze/be/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/microblaze/be/libc.abilist | 67 ++++++++++
.../unix/sysv/linux/microblaze/be/librt.abilist | 5 +
.../unix/sysv/linux/microblaze/le/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/microblaze/le/libc.abilist | 67 ++++++++++
.../unix/sysv/linux/microblaze/le/librt.abilist | 5 +
sysdeps/unix/sysv/linux/microblaze/time64-compat.h | 2 +
.../unix/sysv/linux/mips/mips32/fpu/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/mips/mips32/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/mips/mips32/librt.abilist | 5 +
.../unix/sysv/linux/mips/mips32/nofpu/libc.abilist | 67 ++++++++++
.../unix/sysv/linux/mips/mips32/time64-compat.h | 2 +
.../unix/sysv/linux/mips/mips64/n32/libanl.abilist | 1 +
.../unix/sysv/linux/mips/mips64/n32/libc.abilist | 67 ++++++++++
.../unix/sysv/linux/mips/mips64/n32/librt.abilist | 5 +
.../sysv/linux/mips/mips64/n32/time64-compat.h | 2 +
sysdeps/unix/sysv/linux/mtx_timedlock.c | 8 +-
sysdeps/unix/sysv/linux/nios2/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/nios2/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/nios2/librt.abilist | 5 +
sysdeps/unix/sysv/linux/nios2/time64-compat.h | 2 +
.../sysv/linux/powerpc/powerpc32/fpu/libc.abilist | 67 ++++++++++
.../sysv/linux/powerpc/powerpc32/libanl.abilist | 1 +
.../sysv/linux/powerpc/powerpc32/librt.abilist | 5 +
.../linux/powerpc/powerpc32/nofpu/libc.abilist | 67 ++++++++++
.../sysv/linux/powerpc/powerpc32/time64-compat.h | 2 +
.../unix/sysv/linux/s390/s390-32/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/s390/s390-32/librt.abilist | 5 +
.../unix/sysv/linux/s390/s390-32/time64-compat.h | 2 +
sysdeps/unix/sysv/linux/semctl.c | 1 -
sysdeps/unix/sysv/linux/sh/be/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/sh/be/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/sh/be/librt.abilist | 5 +
sysdeps/unix/sysv/linux/sh/le/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/sh/le/libc.abilist | 67 ++++++++++
sysdeps/unix/sysv/linux/sh/le/librt.abilist | 5 +
sysdeps/unix/sysv/linux/sh/time64-compat.h | 2 +
.../unix/sysv/linux/sparc/sparc32/libanl.abilist | 1 +
sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist | 67 ++++++++++
.../unix/sysv/linux/sparc/sparc32/librt.abilist | 5 +
.../unix/sysv/linux/sparc/sparc32/time64-compat.h | 2 +
sysdeps/unix/sysv/linux/sys/timerfd.h | 22 ++++
sysdeps/unix/sysv/linux/sys/timex.h | 27 +++-
sysvipc/sys/msg.h | 10 ++
sysvipc/sys/sem.h | 21 ++++
sysvipc/sys/shm.h | 10 ++
time/sys/time.h | 71 +++++++++++
time/time.h | 138 ++++++++++++++++++++-
118 files changed, 2386 insertions(+), 60 deletions(-)

Upstream: sourceware.org


  • Share