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From: Jonathan Wakely <jwakely@redhat.com>
To: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: libc-alpha@sourceware.org, Jan Henrik Weinstock <jan@mwa.re>,
	Florian Weimer <fweimer@redhat.com>
Subject: Re: [PATCH v3] Always define __USE_TIME_BITS64 when 64 bit time_t is used
Date: Wed, 31 Jan 2024 12:34:48 +0000	[thread overview]
Message-ID: <Zbo-aJ5V7NbCY907@zen.kayari.org> (raw)
In-Reply-To: <20240118131801.600373-1-adhemerval.zanella@linaro.org>

On 18/01/24 10:18 -0300, Adhemerval Zanella wrote:
>It was raised on libc-help [1] that some Linux kernel interfaces expect
>the libc to define __USE_TIME_BITS64 to indicate the time_t size for the
>kABI.  Different than defined by the initial y2038 design document [2],
>the __USE_TIME_BITS64 is only defined for ABIs that support more than
>one time_t size (by defining the _TIME_BITS for each module).

Libstdc++ needs a way to detect "the traditional ABI for this target
used 32-bit time_t but this translation unit is using the new 64-bit
ABI". Previously __USE_TIME_BITS64 served exactly that purpose. With
this patch it just seems to mean sizeof(time_t) == 64 which is not
useful, I can find that out for myself (and a __TIME_WIDTH__ macro or
similar would be better and more consistent with standard macros for
integer types like int32_t).

See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99832 for the
libstdc++ issue. I don't like relying on an internal glibc macro like
__USE_TIME_BITS64 but I need _some_ way at preprocessing time (not
when libstdc++ is configured) to detect that the current translation
unit is using new 64-bit APIs *which are different from the historical
APIs on that target*.

Is there some semi-stable / semi-public API I can use to detect that?
Is this appropriate?
#if __GLIBC_PREREQ(2, 34) && __TIMESIZE==32 && _TIME_BITS==64
I think this says "the traditional time_t size is 32 but the user has
requested 64 in this TU, and glibc is new enough to honour that
request".

Tangentially,
https://www.gnu.org/software/libc/manual/html_node/64_002dbit-time-symbol-handling.html
still says "In a later change, the public API will allow user code to
choose the time size for a given compilation unit." which should have
been updated by now.


>The 64 bit time_t redirects are now enabled using a different internal
>define (__USE_TIME64_REDIRECTS). There is no expected change in semantic
>or code generation.
>
>Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, and
>arm-linux-gnueabi
>
>[1] https://sourceware.org/pipermail/libc-help/2024-January/006557.html
>[2] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign
>--
>Changes from v2:
>* Only defined __USE_TIME_BITS64 when 64 bit time_t is used.
>
>Changes from v1:
>* Use __USE_TIME64_REDIRECTS to allow replace the current macro.
>---
> io/bits/poll2.h                               |  2 +-
> io/fcntl.h                                    |  2 +-
> io/fts.h                                      |  6 ++---
> io/ftw.h                                      | 12 +++++-----
> io/sys/poll.h                                 |  2 +-
> io/sys/stat.h                                 | 16 ++++++-------
> io/utime.h                                    |  4 ++--
> misc/sys/ioctl.h                              |  2 +-
> misc/sys/select.h                             |  4 ++--
> posix/glob.h                                  |  4 ++--
> posix/sched.h                                 |  2 +-
> posix/sys/wait.h                              |  4 ++--
> resolv/netdb.h                                |  2 +-
> resource/sys/resource.h                       |  2 +-
> rt/aio.h                                      |  4 ++--
> rt/mqueue.h                                   |  2 +-
> signal/signal.h                               |  2 +-
> socket/sys/socket.h                           | 14 +++++------
> support/timespec.h                            |  2 +-
> support/xtime.h                               |  2 +-
> support/xunistd.h                             |  2 +-
> sysdeps/generic/features-time64.h             |  2 ++
> sysdeps/nptl/pthread.h                        | 18 +++++++-------
> sysdeps/pthread/semaphore.h                   |  4 ++--
> sysdeps/pthread/threads.h                     |  6 ++---
> .../unix/sysv/linux/arm/bits/struct_stat.h    |  4 ++--
> .../unix/sysv/linux/bits/socket-constants.h   |  2 +-
> sysdeps/unix/sysv/linux/bits/time.h           |  2 +-
> sysdeps/unix/sysv/linux/bits/timex.h          |  2 +-
> .../sysv/linux/bits/types/struct_msqid_ds.h   |  2 +-
> .../sysv/linux/bits/types/struct_semid_ds.h   |  2 +-
> .../sysv/linux/bits/types/struct_shmid_ds.h   |  2 +-
> .../unix/sysv/linux/csky/bits/struct_stat.h   |  4 ++--
> sysdeps/unix/sysv/linux/features-time64.h     |  9 +++++--
> .../sysv/linux/hppa/bits/socket-constants.h   |  2 +-
> .../unix/sysv/linux/hppa/bits/struct_stat.h   |  4 ++--
> .../linux/hppa/bits/types/struct_msqid_ds.h   |  2 +-
> .../linux/hppa/bits/types/struct_semid_ds.h   |  2 +-
> .../linux/hppa/bits/types/struct_shmid_ds.h   |  2 +-
> .../unix/sysv/linux/m68k/bits/struct_stat.h   |  4 ++--
> .../sysv/linux/microblaze/bits/struct_stat.h  |  6 ++---
> .../sysv/linux/mips/bits/socket-constants.h   |  2 +-
> .../unix/sysv/linux/mips/bits/struct_stat.h   |  8 +++----
> .../linux/mips/bits/types/struct_msqid_ds.h   |  2 +-
> .../linux/mips/bits/types/struct_semid_ds.h   |  2 +-
> .../linux/mips/bits/types/struct_shmid_ds.h   |  2 +-
> .../unix/sysv/linux/nios2/bits/struct_stat.h  |  4 ++--
> .../linux/powerpc/bits/socket-constants.h     |  2 +-
> .../sysv/linux/powerpc/bits/struct_stat.h     |  4 ++--
> .../powerpc/bits/types/struct_msqid_ds.h      |  2 +-
> .../powerpc/bits/types/struct_semid_ds.h      |  2 +-
> .../powerpc/bits/types/struct_shmid_ds.h      |  2 +-
> .../unix/sysv/linux/s390/bits/struct_stat.h   |  4 ++--
> sysdeps/unix/sysv/linux/sh/bits/struct_stat.h |  4 ++--
> .../sysv/linux/sparc/bits/socket-constants.h  |  2 +-
> .../unix/sysv/linux/sparc/bits/struct_stat.h  |  4 ++--
> .../linux/sparc/bits/types/struct_msqid_ds.h  |  2 +-
> .../linux/sparc/bits/types/struct_semid_ds.h  |  2 +-
> .../linux/sparc/bits/types/struct_shmid_ds.h  |  2 +-
> sysdeps/unix/sysv/linux/sys/epoll.h           |  2 +-
> sysdeps/unix/sysv/linux/sys/prctl.h           |  2 +-
> sysdeps/unix/sysv/linux/sys/timerfd.h         |  4 ++--
> sysdeps/unix/sysv/linux/sys/timex.h           |  2 +-
> .../unix/sysv/linux/x86/bits/struct_stat.h    |  4 ++--
> .../linux/x86/bits/types/struct_semid_ds.h    |  2 +-
> sysvipc/sys/msg.h                             |  2 +-
> sysvipc/sys/sem.h                             |  4 ++--
> sysvipc/sys/shm.h                             |  2 +-
> time/bits/types/struct_timespec.h             |  4 ++--
> time/bits/types/struct_timeval.h              |  2 +-
> time/bits/types/time_t.h                      |  2 +-
> time/sys/time.h                               | 10 ++++----
> time/time.h                                   | 24 +++++++++----------
> 73 files changed, 149 insertions(+), 142 deletions(-)
>
>diff --git a/io/bits/poll2.h b/io/bits/poll2.h
>index 6152a8c5e4..efc8b85403 100644
>--- a/io/bits/poll2.h
>+++ b/io/bits/poll2.h
>@@ -43,7 +43,7 @@ poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
>
>
> #ifdef __USE_GNU
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> extern int __REDIRECT (__ppoll64_alias, (struct pollfd *__fds, nfds_t __nfds,
> 				       const struct timespec *__timeout,
> 				       const __sigset_t *__ss), __ppoll64);
>diff --git a/io/fcntl.h b/io/fcntl.h
>index 9cee0b5900..0a493d1dd3 100644
>--- a/io/fcntl.h
>+++ b/io/fcntl.h
>@@ -172,7 +172,7 @@ typedef __pid_t pid_t;
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> # ifndef __USE_FILE_OFFSET64
> extern int fcntl (int __fd, int __cmd, ...);
> # else
>diff --git a/io/fts.h b/io/fts.h
>index 61f95bb441..97a031ebbd 100644
>--- a/io/fts.h
>+++ b/io/fts.h
>@@ -187,7 +187,7 @@ FTSENT	*fts_read (FTS *);
> int	 fts_set (FTS *, FTSENT *, int) __THROW;
> #else
> # ifdef __REDIRECT
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> FTSENT	*__REDIRECT (fts_children, (FTS *, int), fts64_children);
> int	 __REDIRECT (fts_close, (FTS *), fts64_close);
> FTS	*__REDIRECT (fts_open, (char * const *, int,
>@@ -206,7 +206,7 @@ int	 __REDIRECT_NTH (fts_set, (FTS *, FTSENT *, int),
> 			 __fts64_set_time64);
> #  endif
> # else
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> #   define fts_children fts64_children
> #   define fts_close fts64_close
> #   define fts_open fts64_open
>@@ -217,7 +217,7 @@ int	 __REDIRECT_NTH (fts_set, (FTS *, FTSENT *, int),
> # endif
> #endif
> #ifdef __USE_LARGEFILE64
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> FTSENT64 *fts64_children (FTS64 *, int);
> int	  fts64_close (FTS64 *);
> FTS64	 *fts64_open (char * const *, int,
>diff --git a/io/ftw.h b/io/ftw.h
>index e4d1b84d53..39cf595b27 100644
>--- a/io/ftw.h
>+++ b/io/ftw.h
>@@ -137,7 +137,7 @@ extern int ftw (const char *__dir, __ftw_func_t __func, int __descriptors)
>      __nonnull ((1, 2));
> #else
> # ifdef __REDIRECT
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int __REDIRECT (ftw, (const char *__dir, __ftw_func_t __func,
> 			     int __descriptors), ftw64) __nonnull ((1, 2));
> #  else
>@@ -146,7 +146,7 @@ extern int __REDIRECT (ftw, (const char *__dir, __ftw_func_t __func,
>      __nonnull ((1, 2));
> #  endif
> # else
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> #   define ftw ftw64
> #  else
> #   define ftw __ftw64_time64
>@@ -154,7 +154,7 @@ extern int __REDIRECT (ftw, (const char *__dir, __ftw_func_t __func,
> # endif
> #endif
> #ifdef __USE_LARGEFILE64
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int ftw64 (const char *__dir, __ftw64_func_t __func,
> 		  int __descriptors) __nonnull ((1, 2));
> # else
>@@ -180,7 +180,7 @@ extern int nftw (const char *__dir, __nftw_func_t __func, int __descriptors,
> 		 int __flag) __nonnull ((1, 2));
> # else
> #  ifdef __REDIRECT
>-#   ifndef __USE_TIME_BITS64
>+#   ifndef __USE_TIME64_REDIRECTS
> extern int __REDIRECT (nftw, (const char *__dir, __nftw_func_t __func,
> 			      int __descriptors, int __flag), nftw64)
>      __nonnull ((1, 2));
>@@ -190,7 +190,7 @@ extern int __REDIRECT (nftw, (const char *__dir, __nftw_func_t __func,
>      __nonnull ((1, 2));
> #   endif
> #  else
>-#   ifndef __USE_TIME_BITS64
>+#   ifndef __USE_TIME64_REDIRECTS
> #    define nftw nftw64
> #   else
> #    define nftw __nftw64_time64
>@@ -198,7 +198,7 @@ extern int __REDIRECT (nftw, (const char *__dir, __nftw_func_t __func,
> #  endif
> # endif
> # ifdef __USE_LARGEFILE64
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int nftw64 (const char *__dir, __nftw64_func_t __func,
> 		   int __descriptors, int __flag) __nonnull ((1, 2));
> #  else
>diff --git a/io/sys/poll.h b/io/sys/poll.h
>index 7858fad6b9..c324ff5dad 100644
>--- a/io/sys/poll.h
>+++ b/io/sys/poll.h
>@@ -66,7 +66,7 @@ extern int ppoll (struct pollfd *__fds, nfds_t __nfds,
> 		  const __sigset_t *__ss)
>     __fortified_attr_access (__write_only__, 1, 2);
>
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  ifdef __REDIRECT
> extern int __REDIRECT (ppoll, (struct pollfd *__fds, nfds_t __nfds,
>                                const struct timespec *__timeout,
>diff --git a/io/sys/stat.h b/io/sys/stat.h
>index 1fa6d6e62e..3b4ba80132 100644
>--- a/io/sys/stat.h
>+++ b/io/sys/stat.h
>@@ -209,7 +209,7 @@ extern int stat (const char *__restrict __file,
>    that file descriptor FD is open on and put them in BUF.  */
> extern int fstat (int __fd, struct stat *__buf) __THROW __nonnull ((2));
> #else
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  ifdef __REDIRECT_NTH
> extern int __REDIRECT_NTH (stat, (const char *__restrict __file,
> 				  struct stat *__restrict __buf),
>@@ -236,7 +236,7 @@ extern int __REDIRECT_NTH (fstat, (int __fd, struct stat *__buf), fstat64)
> # endif
> #endif
> #ifdef __USE_LARGEFILE64
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int stat64 (const char *__restrict __file,
> 		   struct stat64 *__restrict __buf) __THROW __nonnull ((1, 2));
> extern int fstat64 (int __fd, struct stat64 *__buf) __THROW __nonnull ((2));
>@@ -265,7 +265,7 @@ extern int fstatat (int __fd, const char *__restrict __file,
> 		    struct stat *__restrict __buf, int __flag)
>      __THROW __nonnull ((2, 3));
> # else
>-#  ifdef __USE_TIME_BITS64
>+#  ifdef __USE_TIME64_REDIRECTS
> #   ifdef __REDIRECT_NTH
> extern int __REDIRECT_NTH (fstatat, (int __fd, const char *__restrict __file,
> 				     struct stat *__restrict __buf,
>@@ -287,7 +287,7 @@ extern int __REDIRECT_NTH (fstatat, (int __fd, const char *__restrict __file,
> # endif
>
> # ifdef __USE_LARGEFILE64
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int fstatat64 (int __fd, const char *__restrict __file,
> 		      struct stat64 *__restrict __buf, int __flag)
>      __THROW __nonnull ((2, 3));
>@@ -313,7 +313,7 @@ extern int __REDIRECT_NTH (fstatat64, (int __fd,
> extern int lstat (const char *__restrict __file,
> 		  struct stat *__restrict __buf) __THROW __nonnull ((1, 2));
> # else
>-#  ifdef __USE_TIME_BITS64
>+#  ifdef __USE_TIME64_REDIRECTS
> #   ifdef __REDIRECT_NTH
> extern int __REDIRECT_NTH (lstat,
> 			   (const char *__restrict __file,
>@@ -334,7 +334,7 @@ extern int __REDIRECT_NTH (lstat,
> #  endif
> # endif
> # ifdef __USE_LARGEFILE64
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int lstat64 (const char *__restrict __file,
> 		    struct stat64 *__restrict __buf)
>      __THROW __nonnull ((1, 2));
>@@ -427,7 +427,7 @@ extern int mkfifoat (int __fd, const char *__path, __mode_t __mode)
> #endif
> \f
> #ifdef __USE_ATFILE
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Set file access and modification times relative to directory file
>    descriptor.  */
> extern int utimensat (int __fd, const char *__path,
>@@ -447,7 +447,7 @@ extern int __REDIRECT_NTH (utimensat, (int fd, const char *__path,
> #endif
>
> #ifdef __USE_XOPEN2K8
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Set file access and modification times of the file associated with FD.  */
> extern int futimens (int __fd, const struct timespec __times[2]) __THROW;
>
>diff --git a/io/utime.h b/io/utime.h
>index c5eacedd6a..1c7587d9c1 100644
>--- a/io/utime.h
>+++ b/io/utime.h
>@@ -35,7 +35,7 @@ __BEGIN_DECLS
> /* Structure describing file times.  */
> struct utimbuf
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
>     __time64_t actime;		/* Access time.  */
>     __time64_t modtime;		/* Modification time.  */
> #else
>@@ -46,7 +46,7 @@ struct utimbuf
>
> /* Set the access and modification times of FILE to those given in
>    *FILE_TIMES.  If FILE_TIMES is NULL, set them to the current time.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int utime (const char *__file,
> 		  const struct utimbuf *__file_times)
>      __THROW __nonnull ((1));
>diff --git a/misc/sys/ioctl.h b/misc/sys/ioctl.h
>index 3f2338ddd3..ea6583e122 100644
>--- a/misc/sys/ioctl.h
>+++ b/misc/sys/ioctl.h
>@@ -38,7 +38,7 @@ __BEGIN_DECLS
> /* Perform the I/O control operation specified by REQUEST on FD.
>    One argument may follow; its presence and type depend on REQUEST.
>    Return value depends on REQUEST.  Usually -1 indicates error.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int ioctl (int __fd, unsigned long int __request, ...) __THROW;
> #else
> # ifdef __REDIRECT
>diff --git a/misc/sys/select.h b/misc/sys/select.h
>index e6a0c1b8b2..2e45e94bc1 100644
>--- a/misc/sys/select.h
>+++ b/misc/sys/select.h
>@@ -98,7 +98,7 @@ __BEGIN_DECLS
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int select (int __nfds, fd_set *__restrict __readfds,
> 		   fd_set *__restrict __writefds,
> 		   fd_set *__restrict __exceptfds,
>@@ -123,7 +123,7 @@ extern int __REDIRECT (select,
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int pselect (int __nfds, fd_set *__restrict __readfds,
> 		    fd_set *__restrict __writefds,
> 		    fd_set *__restrict __exceptfds,
>diff --git a/posix/glob.h b/posix/glob.h
>index 3406662840..b6bba0fbcd 100644
>--- a/posix/glob.h
>+++ b/posix/glob.h
>@@ -150,7 +150,7 @@ extern int glob (const char *__restrict __pattern, int __flags,
> /* Free storage allocated in PGLOB by a previous `glob' call.  */
> extern void globfree (glob_t *__pglob) __THROW;
> #else
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> extern int __REDIRECT_NTHNL (glob, (const char *__restrict __pattern,
> 				    int __flags,
> 				    int (*__errfunc) (const char *, int),
>@@ -170,7 +170,7 @@ extern void __REDIRECT_NTH (globfree, (glob_t *__pglob), globfree64);
> #endif
>
> #ifdef __USE_LARGEFILE64
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> extern int __REDIRECT_NTHNL (glob64, (const char *__restrict __pattern,
> 				      int __flags,
> 				      int (*__errfunc) (const char *, int),
>diff --git a/posix/sched.h b/posix/sched.h
>index 3eac206f35..49f504a488 100644
>--- a/posix/sched.h
>+++ b/posix/sched.h
>@@ -74,7 +74,7 @@ extern int sched_get_priority_max (int __algorithm) __THROW;
> extern int sched_get_priority_min (int __algorithm) __THROW;
>
> /* Get the SCHED_RR interval for the named process.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int sched_rr_get_interval (__pid_t __pid, struct timespec *__t) __THROW;
> #else
> # ifdef __REDIRECT_NTH
>diff --git a/posix/sys/wait.h b/posix/sys/wait.h
>index edbb7b4392..1f44ee1145 100644
>--- a/posix/sys/wait.h
>+++ b/posix/sys/wait.h
>@@ -139,7 +139,7 @@ struct rusage;
>    nil, store information about the child's resource usage there.  If the
>    WUNTRACED bit is set in OPTIONS, return status for stopped children;
>    otherwise don't.  */
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern __pid_t wait3 (int *__stat_loc, int __options,
> 		      struct rusage * __usage) __THROWNL;
> # else
>@@ -154,7 +154,7 @@ extern __pid_t __REDIRECT_NTHNL (wait3, (int *__stat_loc, int __options,
> #endif
>
> #ifdef __USE_MISC
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* PID is like waitpid.  Other args are like wait3.  */
> extern __pid_t wait4 (__pid_t __pid, int *__stat_loc, int __options,
> 		      struct rusage *__usage) __THROWNL;
>diff --git a/resolv/netdb.h b/resolv/netdb.h
>index 14228b0d95..b7f473fafe 100644
>--- a/resolv/netdb.h
>+++ b/resolv/netdb.h
>@@ -701,7 +701,7 @@ extern int getaddrinfo_a (int __mode, struct gaicb *__list[__restrict_arr],
> extern int gai_suspend (const struct gaicb *const __list[], int __ent,
> 			const struct timespec *__timeout);
>
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  if defined(__REDIRECT)
> extern int __REDIRECT (gai_suspend, (const struct gaicb *const __list[],
>                                      int __ent,
>diff --git a/resource/sys/resource.h b/resource/sys/resource.h
>index a5634ba715..b0bf751e92 100644
>--- a/resource/sys/resource.h
>+++ b/resource/sys/resource.h
>@@ -88,7 +88,7 @@ extern int setrlimit64 (__rlimit_resource_t __resource,
>    and put it in *USAGE.  Returns 0 for success, -1 for failure.  */
> extern int getrusage (__rusage_who_t __who, struct rusage *__usage) __THROW;
>
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # if defined(__REDIRECT_NTH)
> extern int __REDIRECT_NTH (getrusage, (__rusage_who_t __who,
>                                        struct rusage *__usage),
>diff --git a/rt/aio.h b/rt/aio.h
>index 37d19abf16..e71435733f 100644
>--- a/rt/aio.h
>+++ b/rt/aio.h
>@@ -193,7 +193,7 @@ extern __ssize_t __REDIRECT_NTH (aio_return, (struct aiocb *__aiocbp),
> extern int __REDIRECT_NTH (aio_cancel,
> 			   (int __fildes, struct aiocb *__aiocbp),
> 			   aio_cancel64);
>-#  ifdef __USE_TIME_BITS64
>+#  ifdef __USE_TIME64_REDIRECTS
> extern int __REDIRECT_NTH (aio_suspend,
> 			   (const struct aiocb *const __list[], int __nent,
> 			    const struct timespec *__restrict __timeout),
>@@ -215,7 +215,7 @@ extern int __REDIRECT_NTH (aio_fsync,
> #  define aio_error aio_error64
> #  define aio_return aio_return64
> #  define aio_cancel aio_cancel64
>-#  ifdef __USE_TIME_BITS64
>+#  ifdef __USE_TIME64_REDIRECTS
> #   define aio_suspend __aio_suspend_time64
> #  else
> #   define aio_suspend aio_suspend64
>diff --git a/rt/mqueue.h b/rt/mqueue.h
>index 787cc36df2..fd6fff4bb2 100644
>--- a/rt/mqueue.h
>+++ b/rt/mqueue.h
>@@ -71,7 +71,7 @@ extern int mq_send (mqd_t __mqdes, const char *__msg_ptr, size_t __msg_len,
> 		    unsigned int __msg_prio) __nonnull ((2));
>
> #ifdef __USE_XOPEN2K
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Receive the oldest from highest priority messages in message queue
>    MQDES, stop waiting if ABS_TIMEOUT expires.  */
> extern ssize_t mq_timedreceive (mqd_t __mqdes, char *__restrict __msg_ptr,
>diff --git a/signal/signal.h b/signal/signal.h
>index f37499ce60..8e07b041b1 100644
>--- a/signal/signal.h
>+++ b/signal/signal.h
>@@ -269,7 +269,7 @@ extern int sigwaitinfo (const sigset_t *__restrict __set,
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int sigtimedwait (const sigset_t *__restrict __set,
> 			 siginfo_t *__restrict __info,
> 			 const struct timespec *__restrict __timeout)
>diff --git a/socket/sys/socket.h b/socket/sys/socket.h
>index 366eaab845..463cf3291b 100644
>--- a/socket/sys/socket.h
>+++ b/socket/sys/socket.h
>@@ -170,7 +170,7 @@ extern ssize_t recvfrom (int __fd, void *__restrict __buf, size_t __n,
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern ssize_t sendmsg (int __fd, const struct msghdr *__message,
> 			int __flags);
> #else
>@@ -191,7 +191,7 @@ extern ssize_t __sendmsg64 (int __fd, const struct msghdr *__message,
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int sendmmsg (int __fd, struct mmsghdr *__vmessages,
> 		     unsigned int __vlen, int __flags);
> # else
>@@ -204,7 +204,7 @@ extern int __sendmmsg64 (int __fd, struct mmsghdr *__vmessages,
> 			 unsigned int __vlen, int __flags);
> #   define sendmmsg __sendmmsg64
> #  endif
>-# endif	 /* __USE_TIME_BITS64 */
>+# endif	 /* __USE_TIME64_REDIRECTS */
> #endif /* __USE_GNU */
>
> /* Receive a message as described by MESSAGE from socket FD.
>@@ -212,7 +212,7 @@ extern int __sendmmsg64 (int __fd, struct mmsghdr *__vmessages,
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern ssize_t recvmsg (int __fd, struct msghdr *__message, int __flags);
> #else
> # ifdef __REDIRECT
>@@ -231,7 +231,7 @@ extern ssize_t __recvmsg64 (int __fd, struct msghdr *__message, int __flags);
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int recvmmsg (int __fd, struct mmsghdr *__vmessages,
> 		     unsigned int __vlen, int __flags,
> 		     struct timespec *__tmo);
>@@ -251,7 +251,7 @@ extern int __REDIRECT (recvmmsg, (int __fd, struct mmsghdr *__vmessages,
> /* Put the current value for socket FD's option OPTNAME at protocol level LEVEL
>    into OPTVAL (which is *OPTLEN bytes long), and set *OPTLEN to the value's
>    actual length.  Returns 0 on success, -1 for errors.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int getsockopt (int __fd, int __level, int __optname,
> 		       void *__restrict __optval,
> 		       socklen_t *__restrict __optlen) __THROW;
>@@ -273,7 +273,7 @@ extern int __getsockopt64 (int __fd, int __level, int __optname,
> /* Set socket FD's option OPTNAME at protocol level LEVEL
>    to *OPTVAL (which is OPTLEN bytes long).
>    Returns 0 on success, -1 for errors.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int setsockopt (int __fd, int __level, int __optname,
> 		       const void *__optval, socklen_t __optlen) __THROW;
> #else
>diff --git a/support/timespec.h b/support/timespec.h
>index 42f32bcc2c..5ccc7163a5 100644
>--- a/support/timespec.h
>+++ b/support/timespec.h
>@@ -35,7 +35,7 @@ make_timespec (time_t s, long int ns)
>
> enum { TIMESPEC_HZ = 1000000000 };
>
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> struct timespec timespec_add (struct timespec, struct timespec)
>   __attribute__((const));
> struct timespec timespec_sub (struct timespec, struct timespec)
>diff --git a/support/xtime.h b/support/xtime.h
>index 5200eef2e0..9961899634 100644
>--- a/support/xtime.h
>+++ b/support/xtime.h
>@@ -30,7 +30,7 @@ __BEGIN_DECLS
> /* The following functions call the corresponding libc functions and
>    terminate the process on error.  */
>
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> void xclock_gettime (clockid_t clock, struct timespec *ts);
> void xclock_settime (clockid_t clock, const struct timespec *ts);
> #else
>diff --git a/support/xunistd.h b/support/xunistd.h
>index b5e8c2f420..13be9a46a3 100644
>--- a/support/xunistd.h
>+++ b/support/xunistd.h
>@@ -36,7 +36,7 @@ pid_t xwaitpid (pid_t, int *status, int flags);
> void xpipe (int[2]);
> void xdup2 (int, int);
> int xopen (const char *path, int flags, mode_t);
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> # ifdef __USE_FILE_OFFSET64
> void xstat (const char *path, struct stat *);
> void xlstat (const char *path, struct stat *);
>diff --git a/sysdeps/generic/features-time64.h b/sysdeps/generic/features-time64.h
>index 4d38b8ba76..4d1c8319d4 100644
>--- a/sysdeps/generic/features-time64.h
>+++ b/sysdeps/generic/features-time64.h
>@@ -17,3 +17,5 @@
>    <https://www.gnu.org/licenses/>.  */
>
> /* The generic configuration only support _TIME_BITS=32.  */
>+#define __USE_TIME_BITS64       0
>+#define __USE_TIME64_REDIRECTS  0
>diff --git a/sysdeps/nptl/pthread.h b/sysdeps/nptl/pthread.h
>index 1607fdf29a..3d4f4a756c 100644
>--- a/sysdeps/nptl/pthread.h
>+++ b/sysdeps/nptl/pthread.h
>@@ -223,7 +223,7 @@ extern int pthread_join (pthread_t __th, void **__thread_return);
>    the thread in *THREAD_RETURN, if THREAD_RETURN is not NULL.  */
> extern int pthread_tryjoin_np (pthread_t __th, void **__thread_return) __THROW;
>
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Make calling thread wait for termination of the thread TH, but only
>    until TIMEOUT.  The exit status of the thread is stored in
>    *THREAD_RETURN, if THREAD_RETURN is not NULL.
>@@ -796,7 +796,7 @@ extern int pthread_mutex_lock (pthread_mutex_t *__mutex)
>
> #ifdef __USE_XOPEN2K
> /* Wait until lock becomes available, or specified time passes. */
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex,
> 				    const struct timespec *__restrict
> 				    __abstime) __THROWNL __nonnull ((1, 2));
>@@ -813,7 +813,7 @@ extern int __REDIRECT_NTHNL (pthread_mutex_timedlock,
> #endif
>
> #ifdef __USE_GNU
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int pthread_mutex_clocklock (pthread_mutex_t *__restrict __mutex,
> 				    clockid_t __clockid,
> 				    const struct timespec *__restrict
>@@ -982,7 +982,7 @@ extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock)
>
> # ifdef __USE_XOPEN2K
> /* Try to acquire read lock for RWLOCK or return after specified time.  */
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
> 				       const struct timespec *__restrict
> 				       __abstime) __THROWNL __nonnull ((1, 2));
>@@ -1000,7 +1000,7 @@ extern int __REDIRECT_NTHNL (pthread_rwlock_timedrdlock,
> # endif
>
> # ifdef __USE_GNU
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int pthread_rwlock_clockrdlock (pthread_rwlock_t *__restrict __rwlock,
> 				       clockid_t __clockid,
> 				       const struct timespec *__restrict
>@@ -1029,7 +1029,7 @@ extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock)
>
> # ifdef __USE_XOPEN2K
> /* Try to acquire write lock for RWLOCK or return after specified time.  */
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
> 				       const struct timespec *__restrict
> 				       __abstime) __THROWNL __nonnull ((1, 2));
>@@ -1047,7 +1047,7 @@ extern int __REDIRECT_NTHNL (pthread_rwlock_timedwrlock,
> # endif
>
> # ifdef __USE_GNU
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int pthread_rwlock_clockwrlock (pthread_rwlock_t *__restrict __rwlock,
> 				       clockid_t __clockid,
> 				       const struct timespec *__restrict
>@@ -1141,7 +1141,7 @@ extern int pthread_cond_wait (pthread_cond_t *__restrict __cond,
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond,
> 				   pthread_mutex_t *__restrict __mutex,
> 				   const struct timespec *__restrict __abstime)
>@@ -1167,7 +1167,7 @@ extern int __REDIRECT (pthread_cond_timedwait,
>
>    This function is a cancellation point and therefore not marked with
>    __THROW. */
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int pthread_cond_clockwait (pthread_cond_t *__restrict __cond,
> 				   pthread_mutex_t *__restrict __mutex,
> 				   __clockid_t __clock_id,
>diff --git a/sysdeps/pthread/semaphore.h b/sysdeps/pthread/semaphore.h
>index c75ca4ce6d..8a09633699 100644
>--- a/sysdeps/pthread/semaphore.h
>+++ b/sysdeps/pthread/semaphore.h
>@@ -59,7 +59,7 @@ extern int sem_wait (sem_t *__sem) __nonnull ((1));
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int sem_timedwait (sem_t *__restrict __sem,
> 			  const struct timespec *__restrict __abstime)
>   __nonnull ((1, 2));
>@@ -77,7 +77,7 @@ extern int __REDIRECT (sem_timedwait,
> #endif
>
> #ifdef __USE_GNU
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int sem_clockwait (sem_t *__restrict __sem,
> 			  clockid_t clock,
> 			  const struct timespec *__restrict __abstime)
>diff --git a/sysdeps/pthread/threads.h b/sysdeps/pthread/threads.h
>index c5410b5c3a..7cade24e1f 100644
>--- a/sysdeps/pthread/threads.h
>+++ b/sysdeps/pthread/threads.h
>@@ -90,7 +90,7 @@ extern thrd_t thrd_current (void);
>    __TIME_POINT.  The current thread may resume if receives a signal.  In
>    that case, if __REMAINING is not NULL, the remaining time is stored in
>    the object pointed by it.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int thrd_sleep (const struct timespec *__time_point,
> 		       struct timespec *__remaining);
> #else
>@@ -143,7 +143,7 @@ extern int mtx_lock (mtx_t *__mutex);
> /* Block the current thread until the mutex pointed by __MUTEX is unlocked
>    or time pointed by __TIME_POINT is reached.  In case the mutex is unlock,
>    the current thread will not be blocked.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int mtx_timedlock (mtx_t *__restrict __mutex,
> 			  const struct timespec *__restrict __time_point);
> #else
>@@ -194,7 +194,7 @@ extern int cnd_wait (cnd_t *__cond, mtx_t *__mutex);
> /* Block current thread on the condition variable until condition variable
>    pointed by __COND is signaled or time pointed by __TIME_POINT is
>    reached.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int cnd_timedwait (cnd_t *__restrict __cond,
> 			  mtx_t *__restrict __mutex,
> 			  const struct timespec *__restrict __time_point);
>diff --git a/sysdeps/unix/sysv/linux/arm/bits/struct_stat.h b/sysdeps/unix/sysv/linux/arm/bits/struct_stat.h
>index 255feaa8cb..1fc5917b8e 100644
>--- a/sysdeps/unix/sysv/linux/arm/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/arm/bits/struct_stat.h
>@@ -28,7 +28,7 @@
>
> struct stat
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>     __dev_t st_dev;			/* Device.  */
>@@ -89,7 +89,7 @@ struct stat
> #ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;			/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/bits/socket-constants.h b/sysdeps/unix/sysv/linux/bits/socket-constants.h
>index d997dbf594..b2102d3abf 100644
>--- a/sysdeps/unix/sysv/linux/bits/socket-constants.h
>+++ b/sysdeps/unix/sysv/linux/bits/socket-constants.h
>@@ -64,7 +64,7 @@
> #  define SO_TIMESTAMPNS_NEW 64
> #  define SO_TIMESTAMPING_NEW 65
>
>-#  ifdef __USE_TIME_BITS64
>+#  ifdef __USE_TIME64_REDIRECTS
> #   define SO_RCVTIMEO SO_RCVTIMEO_NEW
> #   define SO_SNDTIMEO SO_SNDTIMEO_NEW
> #   define SO_TIMESTAMP SO_TIMESTAMP_NEW
>diff --git a/sysdeps/unix/sysv/linux/bits/time.h b/sysdeps/unix/sysv/linux/bits/time.h
>index b70ba58a7d..cab4057971 100644
>--- a/sysdeps/unix/sysv/linux/bits/time.h
>+++ b/sysdeps/unix/sysv/linux/bits/time.h
>@@ -77,7 +77,7 @@ __BEGIN_DECLS
> /* Tune a POSIX clock.  */
> extern int clock_adjtime (__clockid_t __clock_id, struct timex *__utx) __THROW __nonnull((2));
>
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # if defined(__REDIRECT_NTH)
> extern int __REDIRECT_NTH (clock_adjtime, (__clockid_t __clock_id,
>                                            struct timex *__utx),
>diff --git a/sysdeps/unix/sysv/linux/bits/timex.h b/sysdeps/unix/sysv/linux/bits/timex.h
>index 398d8094f2..03ccde6d0a 100644
>--- a/sysdeps/unix/sysv/linux/bits/timex.h
>+++ b/sysdeps/unix/sysv/linux/bits/timex.h
>@@ -25,7 +25,7 @@
>
> struct timex
> {
>-# if defined __USE_TIME_BITS64 || (__TIMESIZE == 64 && __WORDSIZE == 32)
>+# if defined __USE_TIME64_REDIRECTS || (__TIMESIZE == 64 && __WORDSIZE == 32)
>   unsigned int modes;          /* mode selector */
>   int :32;                     /* pad */
>   long long offset;            /* time offset (usec) */
>diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h b/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h
>index fae50281c7..86296ca922 100644
>--- a/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h
>+++ b/sysdeps/unix/sysv/linux/bits/types/struct_msqid_ds.h
>@@ -26,7 +26,7 @@
>    The type `struct msg' is opaque.  */
> struct msqid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_msqid64_ds_helper.h>
> #else
>   struct ipc_perm msg_perm;	/* structure describing operation permission */
>diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_semid_ds.h b/sysdeps/unix/sysv/linux/bits/types/struct_semid_ds.h
>index 3c277ed1d8..2ac89b3ce4 100644
>--- a/sysdeps/unix/sysv/linux/bits/types/struct_semid_ds.h
>+++ b/sysdeps/unix/sysv/linux/bits/types/struct_semid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a set of semaphores.  */
> struct semid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_semid64_ds_helper.h>
> #else
>   struct ipc_perm sem_perm;        /* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h
>index 09de0b4e3a..1012ed0317 100644
>--- a/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h
>+++ b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a shared memory segment.  */
> struct shmid_ds
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_shmid64_ds_helper.h>
> #else
>     struct ipc_perm shm_perm;		/* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h b/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h
>index 4b4822d6d0..47a9f0aaff 100644
>--- a/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h
>@@ -43,7 +43,7 @@
>
> struct stat
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>     __dev_t st_dev;		/* Device.  */
>@@ -88,7 +88,7 @@ struct stat
> #ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;		/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/features-time64.h b/sysdeps/unix/sysv/linux/features-time64.h
>index dd3442c2ea..8d573cd23e 100644
>--- a/sysdeps/unix/sysv/linux/features-time64.h
>+++ b/sysdeps/unix/sysv/linux/features-time64.h
>@@ -24,9 +24,8 @@
> # if _TIME_BITS == 64
> #  if ! defined (_FILE_OFFSET_BITS) || _FILE_OFFSET_BITS != 64
> #   error "_TIME_BITS=64 is allowed only with _FILE_OFFSET_BITS=64"
>-#  elif __TIMESIZE == 32
>-#   define __USE_TIME_BITS64	1
> #  endif
>+#  define __USE_TIME_BITS64	1
> # elif _TIME_BITS == 32
> #  if __TIMESIZE > 32
> #   error "_TIME_BITS=32 is not compatible with __TIMESIZE > 32"
>@@ -34,4 +33,10 @@
> # else
> #  error Invalid _TIME_BITS value (can only be 32 or 64-bit)
> # endif
>+#elif __TIMESIZE == 64
>+# define __USE_TIME_BITS64      1
>+#endif
>+
>+#if defined __USE_TIME_BITS64 && __TIMESIZE == 32
>+# define __USE_TIME64_REDIRECTS 1
> #endif
>diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
>index 58b523d03a..80a76a17dc 100644
>--- a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
>+++ b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
>@@ -54,7 +54,7 @@
> # define SO_TIMESTAMPNS_NEW 0x4039
> # define SO_TIMESTAMPING_NEW 0x403A
>
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  define SO_RCVTIMEO SO_RCVTIMEO_NEW
> #  define SO_SNDTIMEO SO_SNDTIMEO_NEW
> #  define SO_TIMESTAMP SO_TIMESTAMP_NEW
>diff --git a/sysdeps/unix/sysv/linux/hppa/bits/struct_stat.h b/sysdeps/unix/sysv/linux/hppa/bits/struct_stat.h
>index 069efdbc55..67f7c110cd 100644
>--- a/sysdeps/unix/sysv/linux/hppa/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/hppa/bits/struct_stat.h
>@@ -28,7 +28,7 @@
>
> struct stat
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>     __dev_t st_dev;			/* Device.  */
>@@ -89,7 +89,7 @@ struct stat
> #ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;			/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_msqid_ds.h b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_msqid_ds.h
>index 2bc7cac06d..4995e0a4a5 100644
>--- a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_msqid_ds.h
>+++ b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_msqid_ds.h
>@@ -26,7 +26,7 @@
>    The type `struct msg' is opaque.  */
> struct msqid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_msqid64_ds_helper.h>
> #else
>   struct ipc_perm msg_perm;	/* structure describing operation permission */
>diff --git a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_semid_ds.h b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_semid_ds.h
>index dd8fbebcf4..df88949dc2 100644
>--- a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_semid_ds.h
>+++ b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_semid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a set of semaphores.  */
> struct semid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_semid64_ds_helper.h>
> #else
>   struct ipc_perm sem_perm;   /* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h
>index 58ac572b6e..cb3b0303aa 100644
>--- a/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h
>+++ b/sysdeps/unix/sysv/linux/hppa/bits/types/struct_shmid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a shared memory segment.  */
> struct shmid_ds
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_shmid64_ds_helper.h>
> #else
>     struct ipc_perm shm_perm;		/* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/m68k/bits/struct_stat.h b/sysdeps/unix/sysv/linux/m68k/bits/struct_stat.h
>index 3b1db157bc..2b662668e8 100644
>--- a/sysdeps/unix/sysv/linux/m68k/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/m68k/bits/struct_stat.h
>@@ -25,7 +25,7 @@
>
> struct stat
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>     __dev_t st_dev;			/* Device.  */
>@@ -86,7 +86,7 @@ struct stat
> #ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;			/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/microblaze/bits/struct_stat.h b/sysdeps/unix/sysv/linux/microblaze/bits/struct_stat.h
>index 0f4693fb1f..04686f30ec 100644
>--- a/sysdeps/unix/sysv/linux/microblaze/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/microblaze/bits/struct_stat.h
>@@ -26,7 +26,7 @@
> #ifndef __USE_FILE_OFFSET64
> struct stat
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>         __dev_t         st_dev;     /* Device.  */
>@@ -74,7 +74,7 @@ struct stat
>  * create one ifdef to separate stats structures.  */
> struct stat
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>         unsigned long long      st_dev;     /* Device.  */
>@@ -119,7 +119,7 @@ struct stat
> #ifdef __USE_LARGEFILE64
> struct stat64
> {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>         unsigned long long      st_dev;     /* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
>index c6908a2793..77ffc8b890 100644
>--- a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
>+++ b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
>@@ -54,7 +54,7 @@
> # define SO_TIMESTAMPNS_NEW 64
> # define SO_TIMESTAMPING_NEW 65
>
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  define SO_RCVTIMEO SO_RCVTIMEO_NEW
> #  define SO_SNDTIMEO SO_SNDTIMEO_NEW
> #  define SO_TIMESTAMP SO_TIMESTAMP_NEW
>diff --git a/sysdeps/unix/sysv/linux/mips/bits/struct_stat.h b/sysdeps/unix/sysv/linux/mips/bits/struct_stat.h
>index 277ebad9b6..26682f8d4f 100644
>--- a/sysdeps/unix/sysv/linux/mips/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/mips/bits/struct_stat.h
>@@ -29,7 +29,7 @@
> /* Structure describing file characteristics.  */
> struct stat
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     unsigned long int st_dev;
>@@ -88,7 +88,7 @@ struct stat
> # ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-#  ifdef __USE_TIME_BITS64
>+#  ifdef __USE_TIME64_REDIRECTS
> #   include <bits/struct_stat_time64_helper.h>
> #  else
>     unsigned long int st_dev;
>@@ -131,7 +131,7 @@ struct stat64
>
> struct stat
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;
>@@ -189,7 +189,7 @@ struct stat
> #ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;
>diff --git a/sysdeps/unix/sysv/linux/mips/bits/types/struct_msqid_ds.h b/sysdeps/unix/sysv/linux/mips/bits/types/struct_msqid_ds.h
>index 4e8bd51b0a..09c53648b7 100644
>--- a/sysdeps/unix/sysv/linux/mips/bits/types/struct_msqid_ds.h
>+++ b/sysdeps/unix/sysv/linux/mips/bits/types/struct_msqid_ds.h
>@@ -26,7 +26,7 @@
>    The type `struct msg' is opaque.  */
> struct msqid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_msqid64_ds_helper.h>
> #else
>   struct ipc_perm msg_perm;	/* structure describing operation permission */
>diff --git a/sysdeps/unix/sysv/linux/mips/bits/types/struct_semid_ds.h b/sysdeps/unix/sysv/linux/mips/bits/types/struct_semid_ds.h
>index d1a30e3164..0746684a7d 100644
>--- a/sysdeps/unix/sysv/linux/mips/bits/types/struct_semid_ds.h
>+++ b/sysdeps/unix/sysv/linux/mips/bits/types/struct_semid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a set of semaphores.  */
> struct semid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_semid64_ds_helper.h>
> #else
>   struct ipc_perm sem_perm;		/* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h
>index 8771164b57..c665af1874 100644
>--- a/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h
>+++ b/sysdeps/unix/sysv/linux/mips/bits/types/struct_shmid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a shared memory segment.  */
> struct shmid_ds
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_shmid64_ds_helper.h>
> #else
>     struct ipc_perm shm_perm;		/* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/nios2/bits/struct_stat.h b/sysdeps/unix/sysv/linux/nios2/bits/struct_stat.h
>index 672c7c6bb8..dab466d881 100644
>--- a/sysdeps/unix/sysv/linux/nios2/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/nios2/bits/struct_stat.h
>@@ -43,7 +43,7 @@
>
> struct stat
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>     __dev_t st_dev;		/* Device.  */
>@@ -88,7 +88,7 @@ struct stat
> #ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;		/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
>index 6be5055e65..0d3e095c5d 100644
>--- a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
>+++ b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
>@@ -54,7 +54,7 @@
> # define SO_TIMESTAMPNS_NEW 64
> # define SO_TIMESTAMPING_NEW 65
>
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  define SO_RCVTIMEO SO_RCVTIMEO_NEW
> #  define SO_SNDTIMEO SO_SNDTIMEO_NEW
> #  define SO_TIMESTAMP SO_TIMESTAMP_NEW
>diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/struct_stat.h b/sysdeps/unix/sysv/linux/powerpc/bits/struct_stat.h
>index f6328399cd..20ed8dd9b8 100644
>--- a/sysdeps/unix/sysv/linux/powerpc/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/powerpc/bits/struct_stat.h
>@@ -28,7 +28,7 @@
> #if __WORDSIZE == 32
> struct stat
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;			/* Device.  */
>@@ -85,7 +85,7 @@ struct stat
> # ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-#  ifdef __USE_TIME_BITS64
>+#  ifdef __USE_TIME64_REDIRECTS
> #   include <bits/struct_stat_time64_helper.h>
> #  else
>     __dev_t st_dev;			/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_msqid_ds.h b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_msqid_ds.h
>index 830629cd37..44ae08265d 100644
>--- a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_msqid_ds.h
>+++ b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_msqid_ds.h
>@@ -26,7 +26,7 @@
>    The type `struct msg' is opaque.  */
> struct msqid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_msqid64_ds_helper.h>
> #else
>   struct ipc_perm msg_perm;	/* structure describing operation permission */
>diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_semid_ds.h b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_semid_ds.h
>index 4370257557..ccee57c28b 100644
>--- a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_semid_ds.h
>+++ b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_semid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a set of semaphores.  */
> struct semid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_semid64_ds_helper.h>
> #else
>   struct ipc_perm sem_perm;   /* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h
>index da1b4b3c56..58145d0a5d 100644
>--- a/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h
>+++ b/sysdeps/unix/sysv/linux/powerpc/bits/types/struct_shmid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a shared memory segment.  */
> struct shmid_ds
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_shmid64_ds_helper.h>
> #else
>     struct ipc_perm shm_perm;		/* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/s390/bits/struct_stat.h b/sysdeps/unix/sysv/linux/s390/bits/struct_stat.h
>index 9911c47bb2..e5c9024fb2 100644
>--- a/sysdeps/unix/sysv/linux/s390/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/s390/bits/struct_stat.h
>@@ -65,7 +65,7 @@ struct stat
> #else
> struct stat
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;			/* Device.  */
>@@ -166,7 +166,7 @@ struct stat64
> # else
> struct stat64
>   {
>-#  ifdef __USE_TIME_BITS64
>+#  ifdef __USE_TIME64_REDIRECTS
> #   include <bits/struct_stat_time64_helper.h>
> #  else
>     __dev_t st_dev;			/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/sh/bits/struct_stat.h b/sysdeps/unix/sysv/linux/sh/bits/struct_stat.h
>index cbd4bc0f31..9ad0943982 100644
>--- a/sysdeps/unix/sysv/linux/sh/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/sh/bits/struct_stat.h
>@@ -28,7 +28,7 @@
>
> struct stat
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>     __dev_t st_dev;			/* Device.  */
>@@ -89,7 +89,7 @@ struct stat
> #ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;			/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
>index 59958611c4..e7a6b684cc 100644
>--- a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
>+++ b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
>@@ -54,7 +54,7 @@
> # define SO_TIMESTAMPNS_NEW 0x0042
> # define SO_TIMESTAMPING_NEW 0x0043
>
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  define SO_RCVTIMEO SO_RCVTIMEO_NEW
> #  define SO_SNDTIMEO SO_SNDTIMEO_NEW
> #  define SO_TIMESTAMP SO_TIMESTAMP_NEW
>diff --git a/sysdeps/unix/sysv/linux/sparc/bits/struct_stat.h b/sysdeps/unix/sysv/linux/sparc/bits/struct_stat.h
>index 4e48634edc..9ce67b289d 100644
>--- a/sysdeps/unix/sysv/linux/sparc/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/sparc/bits/struct_stat.h
>@@ -28,7 +28,7 @@
>
> struct stat
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>     __dev_t st_dev;			/* Device.  */
>@@ -85,7 +85,7 @@ struct stat
> #ifdef __USE_LARGEFILE64
> struct stat64
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;			/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_msqid_ds.h b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_msqid_ds.h
>index db783c28d4..ed8d47c9b6 100644
>--- a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_msqid_ds.h
>+++ b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_msqid_ds.h
>@@ -26,7 +26,7 @@
>    The type `struct msg' is opaque.  */
> struct msqid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_msqid64_ds_helper.h>
> #else
>   struct ipc_perm msg_perm;	/* structure describing operation permission */
>diff --git a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_semid_ds.h b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_semid_ds.h
>index 1c8a3693db..b9e729b8b4 100644
>--- a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_semid_ds.h
>+++ b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_semid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a set of semaphores.  */
> struct semid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_semid64_ds_helper.h>
> #else
>   struct ipc_perm sem_perm;   /* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h
>index 35a0cc36ab..7885d2ab25 100644
>--- a/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h
>+++ b/sysdeps/unix/sysv/linux/sparc/bits/types/struct_shmid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a shared memory segment.  */
> struct shmid_ds
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_shmid64_ds_helper.h>
> #else
>     struct ipc_perm shm_perm;		/* operation permission struct */
>diff --git a/sysdeps/unix/sysv/linux/sys/epoll.h b/sysdeps/unix/sysv/linux/sys/epoll.h
>index 9b51e3bd14..fc8dce45c8 100644
>--- a/sysdeps/unix/sysv/linux/sys/epoll.h
>+++ b/sysdeps/unix/sysv/linux/sys/epoll.h
>@@ -140,7 +140,7 @@ extern int epoll_pwait (int __epfd, struct epoll_event *__events,
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int epoll_pwait2 (int __epfd, struct epoll_event *__events,
> 			 int __maxevents, const struct timespec *__timeout,
> 			 const __sigset_t *__ss)
>diff --git a/sysdeps/unix/sysv/linux/sys/prctl.h b/sysdeps/unix/sysv/linux/sys/prctl.h
>index b13b846261..79a9b31273 100644
>--- a/sysdeps/unix/sysv/linux/sys/prctl.h
>+++ b/sysdeps/unix/sysv/linux/sys/prctl.h
>@@ -38,7 +38,7 @@
> __BEGIN_DECLS
>
> /* Control process execution.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int prctl (int __option, ...) __THROW;
> #else
> # ifdef __REDIRECT
>diff --git a/sysdeps/unix/sysv/linux/sys/timerfd.h b/sysdeps/unix/sysv/linux/sys/timerfd.h
>index 19d0cbfae0..f66ece306a 100644
>--- a/sysdeps/unix/sysv/linux/sys/timerfd.h
>+++ b/sysdeps/unix/sysv/linux/sys/timerfd.h
>@@ -47,7 +47,7 @@ extern int timerfd_settime (int __ufd, int __flags,
> 			    const struct itimerspec *__utmr,
> 			    struct itimerspec *__otmr) __THROW;
>
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # if defined(__REDIRECT_NTH)
> extern int __REDIRECT_NTH (timerfd_settime,
>                            (int __ufd, int __flags,
>@@ -62,7 +62,7 @@ extern int __REDIRECT_NTH (timerfd_settime,
> /* Return the next expiration time of UFD.  */
> extern int timerfd_gettime (int __ufd, struct itimerspec *__otmr) __THROW;
>
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # if defined(__REDIRECT_NTH)
> extern int __REDIRECT_NTH (timerfd_gettime, (int __ufd,
>                                              struct itimerspec *__otmr),
>diff --git a/sysdeps/unix/sysv/linux/sys/timex.h b/sysdeps/unix/sysv/linux/sys/timex.h
>index 28ce022253..568748d767 100644
>--- a/sysdeps/unix/sysv/linux/sys/timex.h
>+++ b/sysdeps/unix/sysv/linux/sys/timex.h
>@@ -54,7 +54,7 @@ struct ntptimeval
>
> __BEGIN_DECLS
>
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int adjtimex (struct timex *__ntx) __THROW __nonnull ((1));
> extern int ntp_gettimex (struct ntptimeval *__ntv) __THROW __nonnull ((1));
>
>diff --git a/sysdeps/unix/sysv/linux/x86/bits/struct_stat.h b/sysdeps/unix/sysv/linux/x86/bits/struct_stat.h
>index 21aa315d8d..b8b580fbde 100644
>--- a/sysdeps/unix/sysv/linux/x86/bits/struct_stat.h
>+++ b/sysdeps/unix/sysv/linux/x86/bits/struct_stat.h
>@@ -25,7 +25,7 @@
>
> struct stat
>   {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/struct_stat_time64_helper.h>
> #else
>     __dev_t st_dev;		/* Device.  */
>@@ -102,7 +102,7 @@ struct stat
> /* Note stat64 has the same shape as stat for x86-64.  */
> struct stat64
>   {
>-# ifdef __USE_TIME_BITS64
>+# ifdef __USE_TIME64_REDIRECTS
> #  include <bits/struct_stat_time64_helper.h>
> # else
>     __dev_t st_dev;		/* Device.  */
>diff --git a/sysdeps/unix/sysv/linux/x86/bits/types/struct_semid_ds.h b/sysdeps/unix/sysv/linux/x86/bits/types/struct_semid_ds.h
>index 9f3d170b65..81867c0316 100644
>--- a/sysdeps/unix/sysv/linux/x86/bits/types/struct_semid_ds.h
>+++ b/sysdeps/unix/sysv/linux/x86/bits/types/struct_semid_ds.h
>@@ -23,7 +23,7 @@
> /* Data structure describing a set of semaphores.  */
> struct semid_ds
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> # include <bits/types/struct_semid64_ds_helper.h>
> #else
>   struct ipc_perm sem_perm;   /* operation permission struct */
>diff --git a/sysvipc/sys/msg.h b/sysvipc/sys/msg.h
>index d0388b0522..4178ad9955 100644
>--- a/sysvipc/sys/msg.h
>+++ b/sysvipc/sys/msg.h
>@@ -58,7 +58,7 @@ struct msgbuf
> __BEGIN_DECLS
>
> /* Message queue control operation.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int msgctl (int __msqid, int __cmd, struct msqid_ds *__buf) __THROW;
> #else
> # ifdef __REDIRECT_NTH
>diff --git a/sysvipc/sys/sem.h b/sysvipc/sys/sem.h
>index 5d9ec39296..812f1303b3 100644
>--- a/sysvipc/sys/sem.h
>+++ b/sysvipc/sys/sem.h
>@@ -48,7 +48,7 @@ struct sembuf
> __BEGIN_DECLS
>
> /* Semaphore control operation.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int semctl (int __semid, int __semnum, int __cmd, ...) __THROW;
> #else
> # ifdef __REDIRECT_NTH
>@@ -68,7 +68,7 @@ extern int semop (int __semid, struct sembuf *__sops, size_t __nsops) __THROW;
>
> #ifdef __USE_GNU
> /* Operate on semaphore with timeout.  */
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int semtimedop (int __semid, struct sembuf *__sops, size_t __nsops,
> 		       const struct timespec *__timeout) __THROW;
> # else
>diff --git a/sysvipc/sys/shm.h b/sysvipc/sys/shm.h
>index 04191656d5..496e57ef45 100644
>--- a/sysvipc/sys/shm.h
>+++ b/sysvipc/sys/shm.h
>@@ -46,7 +46,7 @@ __BEGIN_DECLS
>    facility.  The definition is found in XPG4.2.  */
>
> /* Shared memory control operation.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf) __THROW;
> #else
> # ifdef __REDIRECT_NTH
>diff --git a/time/bits/types/struct_timespec.h b/time/bits/types/struct_timespec.h
>index 489e81136d..1141015f27 100644
>--- a/time/bits/types/struct_timespec.h
>+++ b/time/bits/types/struct_timespec.h
>@@ -10,14 +10,14 @@
>    has nanoseconds instead of microseconds.  */
> struct timespec
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
>   __time64_t tv_sec;		/* Seconds.  */
> #else
>   __time_t tv_sec;		/* Seconds.  */
> #endif
> #if __WORDSIZE == 64 \
>   || (defined __SYSCALL_WORDSIZE && __SYSCALL_WORDSIZE == 64) \
>-  || (__TIMESIZE == 32 && !defined __USE_TIME_BITS64)
>+  || (__TIMESIZE == 32 && !defined __USE_TIME64_REDIRECTS)
>   __syscall_slong_t tv_nsec;	/* Nanoseconds.  */
> #else
> # if __BYTE_ORDER == __BIG_ENDIAN
>diff --git a/time/bits/types/struct_timeval.h b/time/bits/types/struct_timeval.h
>index 3466137c35..0c8e88c82c 100644
>--- a/time/bits/types/struct_timeval.h
>+++ b/time/bits/types/struct_timeval.h
>@@ -7,7 +7,7 @@
>    microsecond but also has a range of years.  */
> struct timeval
> {
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
>   __time64_t tv_sec;		/* Seconds.  */
>   __suseconds64_t tv_usec;	/* Microseconds.  */
> #else
>diff --git a/time/bits/types/time_t.h b/time/bits/types/time_t.h
>index 84d67f6ac3..00cde92c62 100644
>--- a/time/bits/types/time_t.h
>+++ b/time/bits/types/time_t.h
>@@ -4,7 +4,7 @@
> #include <bits/types.h>
>
> /* Returned by `time'.  */
>-#ifdef __USE_TIME_BITS64
>+#ifdef __USE_TIME64_REDIRECTS
> typedef __time64_t time_t;
> #else
> typedef __time_t time_t;
>diff --git a/time/sys/time.h b/time/sys/time.h
>index c8708198a5..8c3d0c3022 100644
>--- a/time/sys/time.h
>+++ b/time/sys/time.h
>@@ -63,7 +63,7 @@ struct timezone
>    use localtime etc. instead.
>    This function itself is semi-obsolete;
>    most callers should use time or clock_gettime instead. */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern int gettimeofday (struct timeval *__restrict __tv,
> 			 void *__restrict __tz) __THROW __nonnull ((1));
> #else
>@@ -77,7 +77,7 @@ extern int __REDIRECT_NTH (gettimeofday, (struct timeval *__restrict __tv,
> #endif
>
> #ifdef __USE_MISC
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Set the current time of day and timezone information.
>    This call is restricted to the super-user.
>    Setting the timezone in this way is obsolete, but we don't yet
>@@ -143,7 +143,7 @@ typedef enum __itimer_which __itimer_which_t;
> typedef int __itimer_which_t;
> #endif
>
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> /* Set *VALUE to the current setting of timer WHICH.
>    Return 0 on success, -1 on errors.  */
> extern int getitimer (__itimer_which_t __which,
>@@ -184,7 +184,7 @@ extern int __REDIRECT_NTH (utimes, (const char *__file,
> #endif
>
> #ifdef __USE_MISC
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Same as `utimes', but does not follow symbolic links.  */
> extern int lutimes (const char *__file, const struct timeval __tvp[2])
>      __THROW __nonnull ((1));
>@@ -207,7 +207,7 @@ extern int __REDIRECT_NTH (futimes, (int __fd, const struct timeval __tvp[2]),
> #endif
>
> #ifdef __USE_GNU
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Change the access time of FILE relative to FD to TVP[0] and the
>    modification time of FILE to TVP[1].  If TVP is a null pointer, use
>    the current time instead.  Returns 0 on success, -1 on errors.  */
>diff --git a/time/time.h b/time/time.h
>index 1609aaeffa..3785dc608f 100644
>--- a/time/time.h
>+++ b/time/time.h
>@@ -71,7 +71,7 @@ __BEGIN_DECLS
>    The result / CLOCKS_PER_SEC is program time in seconds.  */
> extern clock_t clock (void) __THROW;
>
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> /* Return the current time and put it in *TIMER if TIMER is not NULL.  */
> extern time_t time (time_t *__timer) __THROW;
>
>@@ -127,7 +127,7 @@ extern char *strptime_l (const char *__restrict __s,
> #endif
>
>
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> /* Return the `struct tm' representation of *TIMER
>    in Universal Coordinated Time (aka Greenwich Mean Time).  */
> extern struct tm *gmtime (const time_t *__timer) __THROW;
>@@ -149,7 +149,7 @@ extern struct tm *__REDIRECT_NTH (localtime, (const time_t *__timer),
>
>
> #if defined __USE_POSIX || __GLIBC_USE (ISOC2X)
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Return the `struct tm' representation of *TIMER in UTC,
>    using *TP to store the result.  */
> extern struct tm *gmtime_r (const time_t *__restrict __timer,
>@@ -180,7 +180,7 @@ extern struct tm*__REDIRECT_NTH (localtime_r, (const time_t *__restrict __t,
> extern char *asctime (const struct tm *__tp) __THROW;
>
> /* Equivalent to `asctime (localtime (timer))'.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern char *ctime (const time_t *__timer) __THROW;
> #else
> # ifdef __REDIRECT_NTH
>@@ -199,7 +199,7 @@ extern char *asctime_r (const struct tm *__restrict __tp,
> 			char *__restrict __buf) __THROW;
>
> /* Equivalent to `asctime_r (localtime_r (timer, *TMP*), buf)'.  */
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> extern char *ctime_r (const time_t *__restrict __timer,
> 		      char *__restrict __buf) __THROW;
> #else
>@@ -242,7 +242,7 @@ extern long int timezone;
>
>
> #if defined __USE_MISC || __GLIBC_USE (ISOC2X)
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Like `mktime', but for TP represents Universal Time, not local time.  */
> extern time_t timegm (struct tm *__tp) __THROW;
> # else
>@@ -259,7 +259,7 @@ extern time_t __REDIRECT_NTH (timegm, (struct tm *__tp), __timegm64);
> /* Miscellaneous functions many Unices inherited from the public domain
>    localtime package.  These are included only for compatibility.  */
>
>-#ifndef __USE_TIME_BITS64
>+#ifndef __USE_TIME64_REDIRECTS
> /* Another name for `mktime'.  */
> extern time_t timelocal (struct tm *__tp) __THROW;
> #else
>@@ -274,7 +274,7 @@ extern int dysize (int __year) __THROW  __attribute__ ((__const__));
>
>
> #ifdef __USE_POSIX199309
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Pause execution for a number of nanoseconds.
>
>    This function is a cancellation point and therefore not marked with
>@@ -320,7 +320,7 @@ extern int __REDIRECT_NTH (clock_settime, (clockid_t __clock_id, const struct
>
>    This function is a cancellation point and therefore not marked with
>    __THROW.  */
>-#  ifndef __USE_TIME_BITS64
>+#  ifndef __USE_TIME64_REDIRECTS
> extern int clock_nanosleep (clockid_t __clock_id, int __flags,
> 			    const struct timespec *__req,
> 			    struct timespec *__rem);
>@@ -349,7 +349,7 @@ extern int timer_create (clockid_t __clock_id,
> extern int timer_delete (timer_t __timerid) __THROW;
>
> /* Set timer TIMERID to VALUE, returning old value in OVALUE.  */
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> extern int timer_settime (timer_t __timerid, int __flags,
> 			  const struct itimerspec *__restrict __value,
> 			  struct itimerspec *__restrict __ovalue) __THROW;
>@@ -379,7 +379,7 @@ extern int timer_getoverrun (timer_t __timerid) __THROW;
>
>
> #ifdef __USE_ISOC11
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Set TS to calendar time based in time base BASE.  */
> extern int timespec_get (struct timespec *__ts, int __base)
>      __THROW __nonnull ((1));
>@@ -395,7 +395,7 @@ extern int __REDIRECT_NTH (timespec_get, (struct timespec *__ts, int __base),
>
>
> #if __GLIBC_USE (ISOC2X)
>-# ifndef __USE_TIME_BITS64
>+# ifndef __USE_TIME64_REDIRECTS
> /* Set TS to resolution of time base BASE.  */
> extern int timespec_getres (struct timespec *__ts, int __base)
>      __THROW;
>-- 
>2.34.1
>


  parent reply	other threads:[~2024-01-31 12:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-18 13:18 [PATCH v3] Always define __USE_TIME_BITS64 when 64 bit time_t is used Adhemerval Zanella
2024-01-27 13:54 ` Andreas K. Huettel
2024-01-29 16:29   ` Adhemerval Zanella Netto
2024-01-29 16:37     ` Andreas K. Huettel
2024-01-29 16:40   ` Florian Weimer
2024-01-31 12:34 ` Jonathan Wakely [this message]
2024-01-31 17:48   ` Adhemerval Zanella Netto
2024-03-15  2:23 ` DJ Delorie

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