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

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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

Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Adhemerval Zanella
2021-02-17 13:35:19 -03:00
parent 8af344feb5
commit 47f24c21ee
118 changed files with 2387 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
sysdeps/unix/sysv/linux/sparc/sparc32/libanl.abilist
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@ -2,3 +2,4 @@ GLIBC_2.2.3 gai_cancel F
GLIBC_2.2.3 gai_error F
GLIBC_2.2.3 gai_suspend F
GLIBC_2.2.3 getaddrinfo_a F
GLIBC_2.34 __gai_suspend_time64 F

67
sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
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@ -2376,16 +2376,83 @@ GLIBC_2.33 mknod F
GLIBC_2.33 mknodat F
GLIBC_2.33 stat F
GLIBC_2.33 stat64 F
GLIBC_2.34 ___adjtimex64 F
GLIBC_2.34 __adjtime64 F
GLIBC_2.34 __clock_adjtime64 F
GLIBC_2.34 __clock_getres64 F
GLIBC_2.34 __clock_gettime64 F
GLIBC_2.34 __clock_nanosleep_time64 F
GLIBC_2.34 __clock_settime64 F
GLIBC_2.34 __cnd_timedwait64 F
GLIBC_2.34 __ctime64 F
GLIBC_2.34 __ctime64_r F
GLIBC_2.34 __difftime64 F
GLIBC_2.34 __fstat64_time64 F
GLIBC_2.34 __fstatat64_time64 F
GLIBC_2.34 __futimens64 F
GLIBC_2.34 __futimes64 F
GLIBC_2.34 __futimesat64 F
GLIBC_2.34 __getitimer64 F
GLIBC_2.34 __getrusage64 F
GLIBC_2.34 __gettimeofday64 F
GLIBC_2.34 __gmtime64 F
GLIBC_2.34 __gmtime64_r F
GLIBC_2.34 __libc_start_main F
GLIBC_2.34 __localtime64 F
GLIBC_2.34 __localtime64_r F
GLIBC_2.34 __lstat64_time64 F
GLIBC_2.34 __lutimes64 F
GLIBC_2.34 __mktime64 F
GLIBC_2.34 __msgctl64 F
GLIBC_2.34 __mtx_timedlock64 F
GLIBC_2.34 __nanosleep64 F
GLIBC_2.34 __ntp_gettime64 F
GLIBC_2.34 __ntp_gettimex64 F
GLIBC_2.34 __ppoll64 F
GLIBC_2.34 __pselect64 F
GLIBC_2.34 __pthread_cleanup_routine F
GLIBC_2.34 __pthread_clockjoin_np64 F
GLIBC_2.34 __pthread_cond_clockwait64 F
GLIBC_2.34 __pthread_cond_timedwait64 F
GLIBC_2.34 __pthread_key_create F
GLIBC_2.34 __pthread_mutex_clocklock64 F
GLIBC_2.34 __pthread_mutex_lock F
GLIBC_2.34 __pthread_mutex_timedlock64 F
GLIBC_2.34 __pthread_mutex_unlock F
GLIBC_2.34 __pthread_register_cancel F
GLIBC_2.34 __pthread_register_cancel_defer F
GLIBC_2.34 __pthread_rwlock_clockrdlock64 F
GLIBC_2.34 __pthread_rwlock_clockwrlock64 F
GLIBC_2.34 __pthread_rwlock_timedrdlock64 F
GLIBC_2.34 __pthread_rwlock_timedwrlock64 F
GLIBC_2.34 __pthread_timedjoin_np64 F
GLIBC_2.34 __pthread_unregister_cancel F
GLIBC_2.34 __pthread_unregister_cancel_restore F
GLIBC_2.34 __pthread_unwind_next F
GLIBC_2.34 __recvmmsg64 F
GLIBC_2.34 __sched_rr_get_interval64 F
GLIBC_2.34 __select64 F
GLIBC_2.34 __sem_clockwait64 F
GLIBC_2.34 __sem_timedwait64 F
GLIBC_2.34 __semctl64 F
GLIBC_2.34 __semtimedop64 F
GLIBC_2.34 __setitimer64 F
GLIBC_2.34 __settimeofday64 F
GLIBC_2.34 __shmctl64 F
GLIBC_2.34 __sigtimedwait64 F
GLIBC_2.34 __stat64_time64 F
GLIBC_2.34 __thrd_sleep64 F
GLIBC_2.34 __time64 F
GLIBC_2.34 __timegm64 F
GLIBC_2.34 __timerfd_gettime64 F
GLIBC_2.34 __timerfd_settime64 F
GLIBC_2.34 __timespec_get64 F
GLIBC_2.34 __timespec_getres64 F
GLIBC_2.34 __utime64 F
GLIBC_2.34 __utimensat64 F
GLIBC_2.34 __utimes64 F
GLIBC_2.34 __wait3_time64 F
GLIBC_2.34 __wait4_time64 F
GLIBC_2.34 call_once F
GLIBC_2.34 cnd_broadcast F
GLIBC_2.34 cnd_destroy F

5
sysdeps/unix/sysv/linux/sparc/sparc32/librt.abilist
View File

@ -34,6 +34,11 @@ GLIBC_2.3.4 mq_setattr F
GLIBC_2.3.4 mq_timedreceive F
GLIBC_2.3.4 mq_timedsend F
GLIBC_2.3.4 mq_unlink F
GLIBC_2.34 __aio_suspend_time64 F
GLIBC_2.34 __mq_timedreceive_time64 F
GLIBC_2.34 __mq_timedsend_time64 F
GLIBC_2.34 __timer_gettime64 F
GLIBC_2.34 __timer_settime64 F
GLIBC_2.4 lio_listio F
GLIBC_2.4 lio_listio64 F
GLIBC_2.7 __mq_open_2 F

2
sysdeps/unix/sysv/linux/sparc/sparc32/time64-compat.h Normal file
View File

@ -0,0 +1,2 @@
/* ABI support 64-bit in non-default mode. */
#define TIME64_NON_DEFAULT