glibc/sysdeps/unix/sysv/linux/clock_adjtime.c
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

71 lines
2.0 KiB
C

/* clock_adjtime -- tune kernel clock.
Copyright (C) 2020-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, see <https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <stdlib.h>
#include <time.h>
#include <sysdep.h>
#include <sys/timex.h>
#include <kernel-features.h>
int
__clock_adjtime64 (const clockid_t clock_id, struct __timex64 *tx64)
{
#ifndef __NR_clock_adjtime64
# define __NR_clock_adjtime64 __NR_clock_adjtime
#endif
int r = INLINE_SYSCALL_CALL (clock_adjtime64, clock_id, tx64);
#ifndef __ASSUME_TIME64_SYSCALLS
if (r >= 0 || errno != ENOSYS)
return r;
if (tx64->modes & ADJ_SETOFFSET
&& ! in_time_t_range (tx64->time.tv_sec))
{
__set_errno (EOVERFLOW);
return -1;
}
struct timex tx32 = valid_timex64_to_timex (*tx64);
r = INLINE_SYSCALL_CALL (clock_adjtime, clock_id, &tx32);
if (r >= 0)
*tx64 = valid_timex_to_timex64 (tx32);
#endif
return r;
}
#if __TIMESIZE != 64
libc_hidden_def (__clock_adjtime64)
int
__clock_adjtime (const clockid_t clock_id, struct timex *tx)
{
struct __timex64 tx64;
int retval;
tx64 = valid_timex_to_timex64 (*tx);
retval = __clock_adjtime64 (clock_id, &tx64);
if (retval >= 0)
*tx = valid_timex64_to_timex (tx64);
return retval;
}
#endif
libc_hidden_def (__clock_adjtime);
strong_alias (__clock_adjtime, clock_adjtime)