y2038: Add test coverage

It is enabled through a new rule, tests-y2038, which is built only
when the ABI supports the comapt 64-bit time_t (defined by the
header time64-compat.h, which also enables the creation of the
symbol Version for Linux).  It means the tests are not built
for ABI which already provide default 64-bit time_t.

The new rule already adds the required LFS and 64-bit time_t
compiler flags.

The current coverage is:

  * libc:
    - adjtime                       tst-adjtime-time64
    - adjtimex                      tst-adjtimex-time64
    - clock_adjtime                 tst-clock_adjtime-time64
    - clock_getres                  tst-clock-time64, tst-cpuclock1-time64
    - clock_gettime                 tst-clock-time64, tst-clock2-time64,
				    tst-cpuclock1-time64
    - clock_nanosleep               tst-clock_nanosleep-time64,
				    tst-cpuclock1-time64
    - clock_settime                 tst-clock2-time64
    - cnd_timedwait                 tst-cnd-timedwait-time64
    - ctime                         tst-ctime-time64
    - ctime_r                       tst-ctime-time64
    - difftime                      tst-difftime-time64
    - fstat                         tst-stat-time64
    - fstatat                       tst-stat-time64
    - futimens                      tst-futimens-time64
    - futimes                       tst-futimes-time64
    - futimesat                     tst-futimesat-time64
    - fts_*                         tst-fts-time64
    - getitimer                     tst-itimer-timer64
    - getrusage
    - gettimeofday                  tst-clock_nanosleep-time64
    - glob / globfree               tst-gnuglob64-time64
    - gmtime                        tst-gmtime-time64
    - gmtime_r                      tst-gmtime-time64
    - lstat                         tst-stat-time64
    - localtime                     tst-y2039-time64
    - localtime_t                   tst-y2039-time64
    - lutimes                       tst-lutimes-time64
    - mktime                        tst-mktime4-time64
    - mq_timedreceive               tst-mqueue{1248}-time64
    - mq_timedsend                  tst-mqueue{1248}-time64
    - msgctl                        test-sysvmsg-time64
    - mtx_timedlock                 tst-mtx-timedlock-time64
    - nanosleep                     tst-cpuclock{12}-time64,
				    tst-mqueue8-time64, tst-clock-time64
    - nftw / ftw                    ftwtest-time64
    - ntp_adjtime                   tst-ntp_adjtime-time64
    - ntp_gettime                   tst-ntp_gettime-time64
    - ntp_gettimex                  tst-ntp_gettimex-time64
    - ppoll                         tst-ppoll-time64
    - pselect                       tst-pselect-time64
    - pthread_clockjoin_np          tst-join14-time64
    - pthread_cond_clockwait        tst-cond11-time64
    - pthread_cond_timedwait        tst-abstime-time64
    - pthread_mutex_clocklock       tst-abstime-time64
    - pthread_mutex_timedlock       tst-abstime-time64
    - pthread_rwlock_clockrdlock    tst-abstime-time64, tst-rwlock14-time64
    - pthread_rwlock_clockwrlock    tst-abstime-time64, tst-rwlock14-time64
    - pthread_rwlock_timedrdlock    tst-abstime-time64, tst-rwlock14-time64
    - pthread_rwlock_timedwrlock    tst-abstime-time64, tst-rwlock14-time64
    - pthread_timedjoin_np          tst-join14-time64
    - recvmmsg                      tst-cancel4_2-time64
    - sched_rr_get_interval         tst-sched_rr_get_interval-time64
    - select                        tst-select-time64
    - sem_clockwait                 tst-sem5-time64
    - sem_timedwait                 tst-sem5-time64
    - semctl                        test-sysvsem-time64
    - semtimedop                    test-sysvsem-time64
    - setitimer                     tst-mqueue2-time64, tst-itimer-timer64
    - settimeofday                  tst-settimeofday-time64
    - shmctl                        test-sysvshm-time64
    - sigtimedwait                  tst-sigtimedwait-time64
    - stat                          tst-stat-time64
    - thrd_sleep                    tst-thrd-sleep-time64
    - time                          tst-mqueue{1248}-time64
    - timegm                        tst-timegm-time64
    - timer_gettime                 tst-timer4-time64
    - timer_settime                 tst-timer4-time64
    - timerfd_gettime               tst-timerfd-time64
    - timerfd_settime               tst-timerfd-time64
    - timespec_get                  tst-timespec_get-time64
    - timespec_getres               tst-timespec_getres-time64
    - utime                         tst-utime-time64
    - utimensat                     tst-utimensat-time64
    - utimes                        tst-utimes-time64
    - wait3                         tst-wait3-time64
    - wait4                         tst-wait4-time64

  * librt:
    - aio_suspend                   tst-aio6-time64
    - mq_timedreceive               tst-mqueue{1248}-time64
    - mq_timedsend                  tst-mqueue{1248}-time64
    - timer_gettime                 tst-timer4-time64
    - timer_settime                 tst-timer4-time64

  * 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>

1 files changed, 102 insertions, 0 deletions

diff --git a/io/tst-stat-time64.c b/io/tst-stat-time64.c
new file mode 100644
index 0000000000..8feded56d5
--- /dev/null
+++ b/io/tst-stat-time64.c
@@ -0,0 +1,102 @@
+/* Basic test of stat with 64-bit time_t interfaces.
+   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 <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <support/check.h>
+#include <support/support.h>
+#include <support/temp_file.h>
+#include <support/xunistd.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+
+/* The idea of the test is check whether the 64-bit time_t stat implementation
+   returns the expected value for comparable fields, so it does not really
+   matter whether statx uses a fallback implementation or not.  */
+
+static void
+stat_check (int fd, const char *path, struct stat *st)
+{
+  TEST_COMPARE (stat (path, st), 0);
+}
+
+static void
+lstat_check (int fd, const char *path, struct stat *st)
+{
+  TEST_COMPARE (lstat (path, st), 0);
+}
+
+static void
+fstat_check (int fd, const char *path, struct stat *st)
+{
+  TEST_COMPARE (fstat (fd, st), 0);
+}
+
+static void
+fstatat_check (int fd, const char *path, struct stat *st)
+{
+  TEST_COMPARE (fstatat (fd, path, st, 0), 0);
+}
+
+typedef void (*test_t)(int, const char *path, struct stat *);
+
+static int
+do_test (void)
+{
+  char *path;
+  int fd = create_temp_file ("tst-statx-", &path);
+  TEST_VERIFY_EXIT (fd >= 0);
+  support_write_file_string (path, "abc");
+
+  struct statx stx;
+  TEST_COMPARE (statx (fd, path, 0, STATX_BASIC_STATS, &stx), 0);
+
+  for (test_t *test = (test_t[]) { stat_check, lstat_check, fstat_check,
+				   fstatat_check, NULL };
+       *test != NULL; test++)
+  {
+    struct stat st;
+    (*test) (fd, path, &st);
+
+    TEST_COMPARE (stx.stx_dev_major, major (st.st_dev));
+    TEST_COMPARE (stx.stx_dev_minor, minor (st.st_dev));
+    TEST_COMPARE (stx.stx_ino, st.st_ino);
+    TEST_COMPARE (stx.stx_mode, st.st_mode);
+    TEST_COMPARE (stx.stx_nlink, st.st_nlink);
+    TEST_COMPARE (stx.stx_uid, st.st_uid);
+    TEST_COMPARE (stx.stx_gid, st.st_gid);
+    TEST_COMPARE (stx.stx_rdev_major, major (st.st_rdev));
+    TEST_COMPARE (stx.stx_rdev_minor, minor (st.st_rdev));
+    TEST_COMPARE (stx.stx_blksize, st.st_blksize);
+    TEST_COMPARE (stx.stx_blocks, st.st_blocks);
+
+    TEST_COMPARE (stx.stx_ctime.tv_sec, st.st_ctim.tv_sec);
+    TEST_COMPARE (stx.stx_ctime.tv_nsec, st.st_ctim.tv_nsec);
+    TEST_COMPARE (stx.stx_mtime.tv_sec, st.st_mtim.tv_sec);
+    TEST_COMPARE (stx.stx_mtime.tv_nsec, st.st_mtim.tv_nsec);
+  }
+
+  xclose (fd);
+  free (path);
+
+  return 0;
+}
+
+#include <support/test-driver.c>