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| author | Arnd Bergmann <arnd@arndb.de> | 2019-01-10 12:45:11 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2019-02-07 00:13:28 +0100 |
| commit | 48166e6ea47d23984f0b481ca199250e1ce0730a (patch) | |
| tree | 1af2bed895bab4bd048a389dd7d63c68e5d5a7c6 /arch/arm | |
| parent | d33c577cccd0b3e5bb2425f85037f26714a59363 (diff) | |
| download | linux-48166e6ea47d23984f0b481ca199250e1ce0730a.tar.bz2 | |
y2038: add 64-bit time_t syscalls to all 32-bit architectures
This adds 21 new system calls on each ABI that has 32-bit time_t
today. All of these have the exact same semantics as their existing
counterparts, and the new ones all have macro names that end in 'time64'
for clarification.
This gets us to the point of being able to safely use a C library
that has 64-bit time_t in user space. There are still a couple of
loose ends to tie up in various areas of the code, but this is the
big one, and should be entirely uncontroversial at this point.
In particular, there are four system calls (getitimer, setitimer,
waitid, and getrusage) that don't have a 64-bit counterpart yet,
but these can all be safely implemented in the C library by wrapping
around the existing system calls because the 32-bit time_t they
pass only counts elapsed time, not time since the epoch. They
will be dealt with later.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/tools/syscall.tbl | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl index a96d9b5ee04e..9016f4081bb9 100644 --- a/arch/arm/tools/syscall.tbl +++ b/arch/arm/tools/syscall.tbl @@ -416,3 +416,24 @@ 399 common io_pgetevents sys_io_pgetevents_time32 400 common migrate_pages sys_migrate_pages 401 common kexec_file_load sys_kexec_file_load +# 402 is unused +403 common clock_gettime64 sys_clock_gettime +404 common clock_settime64 sys_clock_settime +405 common clock_adjtime64 sys_clock_adjtime +406 common clock_getres_time64 sys_clock_getres +407 common clock_nanosleep_time64 sys_clock_nanosleep +408 common timer_gettime64 sys_timer_gettime +409 common timer_settime64 sys_timer_settime +410 common timerfd_gettime64 sys_timerfd_gettime +411 common timerfd_settime64 sys_timerfd_settime +412 common utimensat_time64 sys_utimensat +413 common pselect6_time64 sys_pselect6 +414 common ppoll_time64 sys_ppoll +416 common io_pgetevents_time64 sys_io_pgetevents +417 common recvmmsg_time64 sys_recvmmsg +418 common mq_timedsend_time64 sys_mq_timedsend +419 common mq_timedreceive_time64 sys_mq_timedreceive +420 common semtimedop_time64 sys_semtimedop +421 common rt_sigtimedwait_time64 sys_rt_sigtimedwait +422 common futex_time64 sys_futex +423 common sched_rr_get_interval_time64 sys_sched_rr_get_interval |