glibc/include/sys
Lukasz Majewski 0308077e3a y2038: linux: Provide __adjtime64 implementation
This patch provides new __adjtime64 explicit 64 bit function for adjusting
Linux kernel clock.

Internally, the __clock_adjtime64 syscall is used instead of __adjtimex. This
patch is necessary for having architectures with __WORDSIZE == 32 Y2038 safe.

Moreover, a 32 bit version - __adjtime has been refactored to internally use
__adjtime64.

The __adjtime is now supposed to be used on systems still supporting 32
bit time (__TIMESIZE != 64) - hence the necessary conversions between struct
timeval and 64 bit struct __timeval64.

Build tests:
./src/scripts/build-many-glibcs.py glibcs

Run-time tests:
- Run specific tests on ARM/x86 32bit systems (qemu):
  https://github.com/lmajewski/meta-y2038 and run tests:
  https://github.com/lmajewski/y2038-tests/commits/master

Above tests were performed with Y2038 redirection applied as well as without to
test the proper usage of both __adjtime64 and __adjtime.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2020-05-20 01:03:26 +02:00
..
auxv.h
bitypes.h
cdefs.h Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI 2020-04-30 08:52:08 -05:00
dir.h
epoll.h
errno.h
fcntl.h
file.h
gmon.h
gmon_out.h
ioctl.h
ipc.h
mman.h
msg.h
param.h
poll.h
prctl.h Add a C wrapper for prctl [BZ #25896] 2020-04-30 10:42:43 -07:00
profil.h
queue.h
random.h
resource.h
select.h
sem.h
sendfile.h
shm.h
signal.h
socket.h
stat.h
statfs.h
statvfs.h
sysinfo.h
syslog.h
sysmacros.h
termios.h
time.h y2038: linux: Provide __adjtime64 implementation 2020-05-20 01:03:26 +02:00
timeb.h
times.h
ttychars.h
types.h
uio.h
un.h
unistd.h
utsname.h
vfs.h
vlimit.h
vtimes.h
wait.h
xattr.h