glibc/support/support_stat_nanoseconds.c
Stefan Liebler 1966f47a1e S390: Don't test nanoseconds in io/tst-stat.c
Both new tests io/tst-stat and io/tst-stat-lfs (_FILE_OFFSET_BITS=64)
are comparing the nanosecond fields with the statx result.  Unfortunately
on s390(31bit) those fields are always zero if old KABI with non-LFS
support is used.  With _FILE_OFFSET_BITS=64 stat is using statx internally.

As suggested by Adhemerval this patch disables the nanosecond check for
s390(31bit).
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-03-26 10:21:13 +01:00

32 lines
1.1 KiB
C

/* Check if stat supports nanosecond resolution.
Copyright (C) 2021 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; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdbool.h>
bool
support_stat_nanoseconds (void)
{
/* s390 stat64 compat symbol does not support nanoseconds resolution
and it used on non-LFS [f,l]stat[at] implementations. */
#if defined __linux__ && !defined __s390x__ && defined __s390__
return false;
#else
return true;
#endif
}