rt: Move generic implementation from sysdeps/pthread to rt

The pthread-based implementation is the generic one.  Replacing
the stubs makes it clear that they do not have to be adjusted for
the libpthread move.

Result of:

    git mv -f sysdeps/pthread/aio_misc.h sysdeps/generic/
    git mv sysdeps/pthread/timer_routines.c sysdeps/htl/
    git mv -f sysdeps/pthread/{aio,lio,timer}_*.c rt/

Followed by manual adjustment of the #include paths in
sysdeps/unix/sysv/linux/wordsize-64, and a move of the version
definitions formerly in sysdeps/pthread/Versions.

20 files changed, 0 insertions, 2968 deletions

diff --git a/sysdeps/pthread/Versions b/sysdeps/pthread/Versions
deleted file mode 100644
index a71cffbed4..0000000000
--- a/sysdeps/pthread/Versions
+++ /dev/null
@@ -1,5 +0,0 @@
-librt {
-  GLIBC_2.4 {
-    lio_listio; lio_listio64;
-  }
-}
diff --git a/sysdeps/pthread/aio_cancel.c b/sysdeps/pthread/aio_cancel.c
deleted file mode 100644
index 63fd88f36c..0000000000
--- a/sysdeps/pthread/aio_cancel.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/* Cancel requests associated with given file descriptor.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-
-/* We use an UGLY hack to prevent gcc from finding us cheating.  The
-   implementation of aio_cancel and aio_cancel64 are identical and so
-   we want to avoid code duplication by using aliases.  But gcc sees
-   the different parameter lists and prints a warning.  We define here
-   a function so that aio_cancel64 has no prototype.  */
-#ifndef aio_cancel
-#define aio_cancel64 XXX
-#include <aio.h>
-/* And undo the hack.  */
-#undef aio_cancel64
-#endif
-
-#include <assert.h>
-#include <errno.h>
-#include <fcntl.h>
-
-#include <aio_misc.h>
-
-
-int
-aio_cancel (int fildes, struct aiocb *aiocbp)
-{
-  struct requestlist *req = NULL;
-  int result = AIO_ALLDONE;
-
-  /* If fildes is invalid, error. */
-  if (fcntl (fildes, F_GETFL) < 0)
-    {
-      __set_errno (EBADF);
-      return -1;
-    }
-
-  /* Request the mutex.  */
-  pthread_mutex_lock (&__aio_requests_mutex);
-
-  /* We are asked to cancel a specific AIO request.  */
-  if (aiocbp != NULL)
-    {
-      /* If the AIO request is not for this descriptor it has no value
-	 to look for the request block.  */
-      if (aiocbp->aio_fildes != fildes)
-	{
-	  pthread_mutex_unlock (&__aio_requests_mutex);
-	  __set_errno (EINVAL);
-	  return -1;
-	}
-      else if (aiocbp->__error_code == EINPROGRESS)
-	{
-	  struct requestlist *last = NULL;
-
-	  req = __aio_find_req_fd (fildes);
-
-	  if (req == NULL)
-	    {
-	    not_found:
-	      pthread_mutex_unlock (&__aio_requests_mutex);
-	      __set_errno (EINVAL);
-	      return -1;
-	    }
-
-	  while (req->aiocbp != (aiocb_union *) aiocbp)
-	    {
-	      last = req;
-	      req = req->next_prio;
-	      if (req == NULL)
-		goto not_found;
-	    }
-
-	  /* Don't remove the entry if a thread is already working on it.  */
-	  if (req->running == allocated)
-	    {
-	      result = AIO_NOTCANCELED;
-	      req = NULL;
-	    }
-	  else
-	    {
-	      /* We can remove the entry.  */
-	      __aio_remove_request (last, req, 0);
-
-	      result = AIO_CANCELED;
-
-	      req->next_prio = NULL;
-	    }
-	}
-    }
-  else
-    {
-      /* Find the beginning of the list of all requests for this
-	 desriptor.  */
-      req = __aio_find_req_fd (fildes);
-
-      /* If any request is worked on by a thread it must be the first.
-	 So either we can delete all requests or all but the first.  */
-      if (req != NULL)
-	{
-	  if (req->running == allocated)
-	    {
-	      struct requestlist *old = req;
-	      req = req->next_prio;
-	      old->next_prio = NULL;
-
-	      result = AIO_NOTCANCELED;
-
-	      if (req != NULL)
-		__aio_remove_request (old, req, 1);
-	    }
-	  else
-	    {
-	      result = AIO_CANCELED;
-
-	      /* We can remove the entry.  */
-	      __aio_remove_request (NULL, req, 1);
-	    }
-	}
-    }
-
-  /* Mark requests as canceled and send signal.  */
-  while (req != NULL)
-    {
-      struct requestlist *old = req;
-      assert (req->running == yes || req->running == queued);
-      req->aiocbp->aiocb.__error_code = ECANCELED;
-      req->aiocbp->aiocb.__return_value = -1;
-      __aio_notify (req);
-      req = req->next_prio;
-      __aio_free_request (old);
-    }
-
-  /* Release the mutex.  */
-  pthread_mutex_unlock (&__aio_requests_mutex);
-
-  return result;
-}
-
-#ifndef aio_cancel
-weak_alias (aio_cancel, aio_cancel64)
-#endif
diff --git a/sysdeps/pthread/aio_error.c b/sysdeps/pthread/aio_error.c
deleted file mode 100644
index ed664ae0ef..0000000000
--- a/sysdeps/pthread/aio_error.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/* Return error status of asynchronous I/O request.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-
-/* We use an UGLY hack to prevent gcc from finding us cheating.  The
-   implementation of aio_error and aio_error64 are identical and so
-   we want to avoid code duplication by using aliases.  But gcc sees
-   the different parameter lists and prints a warning.  We define here
-   a function so that aio_error64 has no prototype.  */
-#define aio_error64 XXX
-#include <aio.h>
-/* And undo the hack.  */
-#undef aio_error64
-
-#include <aio_misc.h>
-
-
-int
-aio_error (const struct aiocb *aiocbp)
-{
-  int ret;
-
-  /* Acquire the mutex to make sure all operations for this request are
-     complete.  */
-  pthread_mutex_lock(&__aio_requests_mutex);
-  ret = aiocbp->__error_code;
-  pthread_mutex_unlock(&__aio_requests_mutex);
-
-  return ret;
-}
-
-weak_alias (aio_error, aio_error64)
diff --git a/sysdeps/pthread/aio_fsync.c b/sysdeps/pthread/aio_fsync.c
deleted file mode 100644
index 5a52e2fec0..0000000000
--- a/sysdeps/pthread/aio_fsync.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Synchronize I/O in given file descriptor.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-
-/* We use an UGLY hack to prevent gcc from finding us cheating.  The
-   implementation of aio_fsync and aio_fsync64 are identical and so
-   we want to avoid code duplication by using aliases.  But gcc sees
-   the different parameter lists and prints a warning.  We define here
-   a function so that aio_fsync64 has no prototype.  */
-#define aio_fsync64 XXX
-#include <aio.h>
-/* And undo the hack.  */
-#undef aio_fsync64
-#include <errno.h>
-#include <fcntl.h>
-
-#include <aio_misc.h>
-
-
-int
-aio_fsync (int op, struct aiocb *aiocbp)
-{
-  if (op != O_DSYNC && __builtin_expect (op != O_SYNC, 0))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  /* Verify that this is an open file descriptor.  */
-  if (__glibc_unlikely (fcntl (aiocbp->aio_fildes, F_GETFL) == -1))
-    {
-      __set_errno (EBADF);
-      return -1;
-    }
-
-  return (__aio_enqueue_request ((aiocb_union *) aiocbp,
-				 op == O_SYNC ? LIO_SYNC : LIO_DSYNC) == NULL
-	  ? -1 : 0);
-}
-
-weak_alias (aio_fsync, aio_fsync64)
diff --git a/sysdeps/pthread/aio_misc.c b/sysdeps/pthread/aio_misc.c
deleted file mode 100644
index b95f07d9d3..0000000000
--- a/sysdeps/pthread/aio_misc.c
+++ /dev/null
@@ -1,721 +0,0 @@
-/* Handle general operations.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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 <aio.h>
-#include <assert.h>
-#include <errno.h>
-#include <limits.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/param.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <aio_misc.h>
-
-#ifndef aio_create_helper_thread
-# define aio_create_helper_thread __aio_create_helper_thread
-
-extern inline int
-__aio_create_helper_thread (pthread_t *threadp, void *(*tf) (void *), void *arg)
-{
-  pthread_attr_t attr;
-
-  /* Make sure the thread is created detached.  */
-  pthread_attr_init (&attr);
-  pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
-
-  int ret = pthread_create (threadp, &attr, tf, arg);
-
-  (void) pthread_attr_destroy (&attr);
-  return ret;
-}
-#endif
-
-static void add_request_to_runlist (struct requestlist *newrequest);
-
-/* Pool of request list entries.  */
-static struct requestlist **pool;
-
-/* Number of total and allocated pool entries.  */
-static size_t pool_max_size;
-static size_t pool_size;
-
-/* We implement a two dimensional array but allocate each row separately.
-   The macro below determines how many entries should be used per row.
-   It should better be a power of two.  */
-#define ENTRIES_PER_ROW	32
-
-/* How many rows we allocate at once.  */
-#define ROWS_STEP	8
-
-/* List of available entries.  */
-static struct requestlist *freelist;
-
-/* List of request waiting to be processed.  */
-static struct requestlist *runlist;
-
-/* Structure list of all currently processed requests.  */
-static struct requestlist *requests;
-
-/* Number of threads currently running.  */
-static int nthreads;
-
-/* Number of threads waiting for work to arrive. */
-static int idle_thread_count;
-
-
-/* These are the values used to optimize the use of AIO.  The user can
-   overwrite them by using the `aio_init' function.  */
-static struct aioinit optim =
-{
-  20,	/* int aio_threads;	Maximal number of threads.  */
-  64,	/* int aio_num;		Number of expected simultaneous requests. */
-  0,
-  0,
-  0,
-  0,
-  1,
-  0
-};
-
-
-/* Since the list is global we need a mutex protecting it.  */
-pthread_mutex_t __aio_requests_mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
-
-/* When you add a request to the list and there are idle threads present,
-   you signal this condition variable. When a thread finishes work, it waits
-   on this condition variable for a time before it actually exits. */
-pthread_cond_t __aio_new_request_notification = PTHREAD_COND_INITIALIZER;
-
-
-/* Functions to handle request list pool.  */
-static struct requestlist *
-get_elem (void)
-{
-  struct requestlist *result;
-
-  if (freelist == NULL)
-    {
-      struct requestlist *new_row;
-      int cnt;
-
-      assert (sizeof (struct aiocb) == sizeof (struct aiocb64));
-
-      if (pool_size + 1 >= pool_max_size)
-	{
-	  size_t new_max_size = pool_max_size + ROWS_STEP;
-	  struct requestlist **new_tab;
-
-	  new_tab = (struct requestlist **)
-	    realloc (pool, new_max_size * sizeof (struct requestlist *));
-
-	  if (new_tab == NULL)
-	    return NULL;
-
-	  pool_max_size = new_max_size;
-	  pool = new_tab;
-	}
-
-      /* Allocate the new row.  */
-      cnt = pool_size == 0 ? optim.aio_num : ENTRIES_PER_ROW;
-      new_row = (struct requestlist *) calloc (cnt,
-					       sizeof (struct requestlist));
-      if (new_row == NULL)
-	return NULL;
-
-      pool[pool_size++] = new_row;
-
-      /* Put all the new entries in the freelist.  */
-      do
-	{
-	  new_row->next_prio = freelist;
-	  freelist = new_row++;
-	}
-      while (--cnt > 0);
-    }
-
-  result = freelist;
-  freelist = freelist->next_prio;
-
-  return result;
-}
-
-
-void
-__aio_free_request (struct requestlist *elem)
-{
-  elem->running = no;
-  elem->next_prio = freelist;
-  freelist = elem;
-}
-
-
-struct requestlist *
-__aio_find_req (aiocb_union *elem)
-{
-  struct requestlist *runp = requests;
-  int fildes = elem->aiocb.aio_fildes;
-
-  while (runp != NULL && runp->aiocbp->aiocb.aio_fildes < fildes)
-    runp = runp->next_fd;
-
-  if (runp != NULL)
-    {
-      if (runp->aiocbp->aiocb.aio_fildes != fildes)
-	runp = NULL;
-      else
-	while (runp != NULL && runp->aiocbp != elem)
-	  runp = runp->next_prio;
-    }
-
-  return runp;
-}
-
-
-struct requestlist *
-__aio_find_req_fd (int fildes)
-{
-  struct requestlist *runp = requests;
-
-  while (runp != NULL && runp->aiocbp->aiocb.aio_fildes < fildes)
-    runp = runp->next_fd;
-
-  return (runp != NULL && runp->aiocbp->aiocb.aio_fildes == fildes
-	  ? runp : NULL);
-}
-
-
-void
-__aio_remove_request (struct requestlist *last, struct requestlist *req,
-		      int all)
-{
-  assert (req->running == yes || req->running == queued
-	  || req->running == done);
-
-  if (last != NULL)
-    last->next_prio = all ? NULL : req->next_prio;
-  else
-    {
-      if (all || req->next_prio == NULL)
-	{
-	  if (req->last_fd != NULL)
-	    req->last_fd->next_fd = req->next_fd;
-	  else
-	    requests = req->next_fd;
-	  if (req->next_fd != NULL)
-	    req->next_fd->last_fd = req->last_fd;
-	}
-      else
-	{
-	  if (req->last_fd != NULL)
-	    req->last_fd->next_fd = req->next_prio;
-	  else
-	    requests = req->next_prio;
-
-	  if (req->next_fd != NULL)
-	    req->next_fd->last_fd = req->next_prio;
-
-	  req->next_prio->last_fd = req->last_fd;
-	  req->next_prio->next_fd = req->next_fd;
-
-	  /* Mark this entry as runnable.  */
-	  req->next_prio->running = yes;
-	}
-
-      if (req->running == yes)
-	{
-	  struct requestlist *runp = runlist;
-
-	  last = NULL;
-	  while (runp != NULL)
-	    {
-	      if (runp == req)
-		{
-		  if (last == NULL)
-		    runlist = runp->next_run;
-		  else
-		    last->next_run = runp->next_run;
-		  break;
-		}
-	      last = runp;
-	      runp = runp->next_run;
-	    }
-	}
-    }
-}
-
-
-/* The thread handler.  */
-static void *handle_fildes_io (void *arg);
-
-
-/* User optimization.  */
-void
-__aio_init (const struct aioinit *init)
-{
-  /* Get the mutex.  */
-  pthread_mutex_lock (&__aio_requests_mutex);
-
-  /* Only allow writing new values if the table is not yet allocated.  */
-  if (pool == NULL)
-    {
-      optim.aio_threads = init->aio_threads < 1 ? 1 : init->aio_threads;
-      assert (powerof2 (ENTRIES_PER_ROW));
-      optim.aio_num = (init->aio_num < ENTRIES_PER_ROW
-		       ? ENTRIES_PER_ROW
-		       : init->aio_num & ~(ENTRIES_PER_ROW - 1));
-    }
-
-  if (init->aio_idle_time != 0)
-    optim.aio_idle_time = init->aio_idle_time;
-
-  /* Release the mutex.  */
-  pthread_mutex_unlock (&__aio_requests_mutex);
-}
-weak_alias (__aio_init, aio_init)
-
-
-/* The main function of the async I/O handling.  It enqueues requests
-   and if necessary starts and handles threads.  */
-struct requestlist *
-__aio_enqueue_request (aiocb_union *aiocbp, int operation)
-{
-  int result = 0;
-  int policy, prio;
-  struct sched_param param;
-  struct requestlist *last, *runp, *newp;
-  int running = no;
-
-  if (operation == LIO_SYNC || operation == LIO_DSYNC)
-    aiocbp->aiocb.aio_reqprio = 0;
-  else if (aiocbp->aiocb.aio_reqprio < 0
-#ifdef AIO_PRIO_DELTA_MAX
-	   || aiocbp->aiocb.aio_reqprio > AIO_PRIO_DELTA_MAX
-#endif
-	   )
-    {
-      /* Invalid priority value.  */
-      __set_errno (EINVAL);
-      aiocbp->aiocb.__error_code = EINVAL;
-      aiocbp->aiocb.__return_value = -1;
-      return NULL;
-    }
-
-  /* Compute priority for this request.  */
-  pthread_getschedparam (pthread_self (), &policy, &param);
-  prio = param.sched_priority - aiocbp->aiocb.aio_reqprio;
-
-  /* Get the mutex.  */
-  pthread_mutex_lock (&__aio_requests_mutex);
-
-  last = NULL;
-  runp = requests;
-  /* First look whether the current file descriptor is currently
-     worked with.  */
-  while (runp != NULL
-	 && runp->aiocbp->aiocb.aio_fildes < aiocbp->aiocb.aio_fildes)
-    {
-      last = runp;
-      runp = runp->next_fd;
-    }
-
-  /* Get a new element for the waiting list.  */
-  newp = get_elem ();
-  if (newp == NULL)
-    {
-      pthread_mutex_unlock (&__aio_requests_mutex);
-      __set_errno (EAGAIN);
-      return NULL;
-    }
-  newp->aiocbp = aiocbp;
-  newp->waiting = NULL;
-
-  aiocbp->aiocb.__abs_prio = prio;
-  aiocbp->aiocb.__policy = policy;
-  aiocbp->aiocb.aio_lio_opcode = operation;
-  aiocbp->aiocb.__error_code = EINPROGRESS;
-  aiocbp->aiocb.__return_value = 0;
-
-  if (runp != NULL
-      && runp->aiocbp->aiocb.aio_fildes == aiocbp->aiocb.aio_fildes)
-    {
-      /* The current file descriptor is worked on.  It makes no sense
-	 to start another thread since this new thread would fight
-	 with the running thread for the resources.  But we also cannot
-	 say that the thread processing this desriptor shall immediately
-	 after finishing the current job process this request if there
-	 are other threads in the running queue which have a higher
-	 priority.  */
-
-      /* Simply enqueue it after the running one according to the
-	 priority.  */
-      last = NULL;
-      while (runp->next_prio != NULL
-	     && runp->next_prio->aiocbp->aiocb.__abs_prio >= prio)
-	{
-	  last = runp;
-	  runp = runp->next_prio;
-	}
-
-      newp->next_prio = runp->next_prio;
-      runp->next_prio = newp;
-
-      running = queued;
-    }
-  else
-    {
-      running = yes;
-      /* Enqueue this request for a new descriptor.  */
-      if (last == NULL)
-	{
-	  newp->last_fd = NULL;
-	  newp->next_fd = requests;
-	  if (requests != NULL)
-	    requests->last_fd = newp;
-	  requests = newp;
-	}
-      else
-	{
-	  newp->next_fd = last->next_fd;
-	  newp->last_fd = last;
-	  last->next_fd = newp;
-	  if (newp->next_fd != NULL)
-	    newp->next_fd->last_fd = newp;
-	}
-
-      newp->next_prio = NULL;
-      last = NULL;
-    }
-
-  if (running == yes)
-    {
-      /* We try to create a new thread for this file descriptor.  The
-	 function which gets called will handle all available requests
-	 for this descriptor and when all are processed it will
-	 terminate.
-
-	 If no new thread can be created or if the specified limit of
-	 threads for AIO is reached we queue the request.  */
-
-      /* See if we need to and are able to create a thread.  */
-      if (nthreads < optim.aio_threads && idle_thread_count == 0)
-	{
-	  pthread_t thid;
-
-	  running = newp->running = allocated;
-
-	  /* Now try to start a thread.  */
-	  result = aio_create_helper_thread (&thid, handle_fildes_io, newp);
-	  if (result == 0)
-	    /* We managed to enqueue the request.  All errors which can
-	       happen now can be recognized by calls to `aio_return' and
-	       `aio_error'.  */
-	    ++nthreads;
-	  else
-	    {
-	      /* Reset the running flag.  The new request is not running.  */
-	      running = newp->running = yes;
-
-	      if (nthreads == 0)
-		{
-		  /* We cannot create a thread in the moment and there is
-		     also no thread running.  This is a problem.  `errno' is
-		     set to EAGAIN if this is only a temporary problem.  */
-		  __aio_remove_request (last, newp, 0);
-		}
-	      else
-		result = 0;
-	    }
-	}
-    }
-
-  /* Enqueue the request in the run queue if it is not yet running.  */
-  if (running == yes && result == 0)
-    {
-      add_request_to_runlist (newp);
-
-      /* If there is a thread waiting for work, then let it know that we
-	 have just given it something to do. */
-      if (idle_thread_count > 0)
-	pthread_cond_signal (&__aio_new_request_notification);
-    }
-
-  if (result == 0)
-    newp->running = running;
-  else
-    {
-      /* Something went wrong.  */
-      __aio_free_request (newp);
-      aiocbp->aiocb.__error_code = result;
-      __set_errno (result);
-      newp = NULL;
-    }
-
-  /* Release the mutex.  */
-  pthread_mutex_unlock (&__aio_requests_mutex);
-
-  return newp;
-}
-
-
-static void *
-handle_fildes_io (void *arg)
-{
-  pthread_t self = pthread_self ();
-  struct sched_param param;
-  struct requestlist *runp = (struct requestlist *) arg;
-  aiocb_union *aiocbp;
-  int policy;
-  int fildes;
-
-  pthread_getschedparam (self, &policy, &param);
-
-  do
-    {
-      /* If runp is NULL, then we were created to service the work queue
-	 in general, not to handle any particular request. In that case we
-	 skip the "do work" stuff on the first pass, and go directly to the
-	 "get work off the work queue" part of this loop, which is near the
-	 end. */
-      if (runp == NULL)
-	pthread_mutex_lock (&__aio_requests_mutex);
-      else
-	{
-	  /* Hopefully this request is marked as running.  */
-	  assert (runp->running == allocated);
-
-	  /* Update our variables.  */
-	  aiocbp = runp->aiocbp;
-	  fildes = aiocbp->aiocb.aio_fildes;
-
-	  /* Change the priority to the requested value (if necessary).  */
-	  if (aiocbp->aiocb.__abs_prio != param.sched_priority
-	      || aiocbp->aiocb.__policy != policy)
-	    {
-	      param.sched_priority = aiocbp->aiocb.__abs_prio;
-	      policy = aiocbp->aiocb.__policy;
-	      pthread_setschedparam (self, policy, &param);
-	    }
-
-	  /* Process request pointed to by RUNP.  We must not be disturbed
-	     by signals.  */
-	  if ((aiocbp->aiocb.aio_lio_opcode & 127) == LIO_READ)
-	    {
-	      if (sizeof (off_t) != sizeof (off64_t)
-		  && aiocbp->aiocb.aio_lio_opcode & 128)
-		aiocbp->aiocb.__return_value =
-		  TEMP_FAILURE_RETRY (__pread64 (fildes, (void *)
-						 aiocbp->aiocb64.aio_buf,
-						 aiocbp->aiocb64.aio_nbytes,
-						 aiocbp->aiocb64.aio_offset));
-	      else
-		aiocbp->aiocb.__return_value =
-		  TEMP_FAILURE_RETRY (__libc_pread (fildes,
-						    (void *)
-						    aiocbp->aiocb.aio_buf,
-						    aiocbp->aiocb.aio_nbytes,
-						    aiocbp->aiocb.aio_offset));
-
-	      if (aiocbp->aiocb.__return_value == -1 && errno == ESPIPE)
-		/* The Linux kernel is different from others.  It returns
-		   ESPIPE if using pread on a socket.  Other platforms
-		   simply ignore the offset parameter and behave like
-		   read.  */
-		aiocbp->aiocb.__return_value =
-		  TEMP_FAILURE_RETRY (read (fildes,
-					    (void *) aiocbp->aiocb64.aio_buf,
-					    aiocbp->aiocb64.aio_nbytes));
-	    }
-	  else if ((aiocbp->aiocb.aio_lio_opcode & 127) == LIO_WRITE)
-	    {
-	      if (sizeof (off_t) != sizeof (off64_t)
-		  && aiocbp->aiocb.aio_lio_opcode & 128)
-		aiocbp->aiocb.__return_value =
-		  TEMP_FAILURE_RETRY (__pwrite64 (fildes, (const void *)
-						  aiocbp->aiocb64.aio_buf,
-						  aiocbp->aiocb64.aio_nbytes,
-						  aiocbp->aiocb64.aio_offset));
-	      else
-		aiocbp->aiocb.__return_value =
-		  TEMP_FAILURE_RETRY (__libc_pwrite (fildes, (const void *)
-					      aiocbp->aiocb.aio_buf,
-					      aiocbp->aiocb.aio_nbytes,
-					      aiocbp->aiocb.aio_offset));
-
-	      if (aiocbp->aiocb.__return_value == -1 && errno == ESPIPE)
-		/* The Linux kernel is different from others.  It returns
-		   ESPIPE if using pwrite on a socket.  Other platforms
-		   simply ignore the offset parameter and behave like
-		   write.  */
-		aiocbp->aiocb.__return_value =
-		  TEMP_FAILURE_RETRY (write (fildes,
-					     (void *) aiocbp->aiocb64.aio_buf,
-					     aiocbp->aiocb64.aio_nbytes));
-	    }
-	  else if (aiocbp->aiocb.aio_lio_opcode == LIO_DSYNC)
-	    aiocbp->aiocb.__return_value =
-	      TEMP_FAILURE_RETRY (fdatasync (fildes));
-	  else if (aiocbp->aiocb.aio_lio_opcode == LIO_SYNC)
-	    aiocbp->aiocb.__return_value =
-	      TEMP_FAILURE_RETRY (fsync (fildes));
-	  else
-	    {
-	      /* This is an invalid opcode.  */
-	      aiocbp->aiocb.__return_value = -1;
-	      __set_errno (EINVAL);
-	    }
-
-	  /* Get the mutex.  */
-	  pthread_mutex_lock (&__aio_requests_mutex);
-
-	  if (aiocbp->aiocb.__return_value == -1)
-	    aiocbp->aiocb.__error_code = errno;
-	  else
-	    aiocbp->aiocb.__error_code = 0;
-
-	  /* Send the signal to notify about finished processing of the
-	     request.  */
-	  __aio_notify (runp);
-
-	  /* For debugging purposes we reset the running flag of the
-	     finished request.  */
-	  assert (runp->running == allocated);
-	  runp->running = done;
-
-	  /* Now dequeue the current request.  */
-	  __aio_remove_request (NULL, runp, 0);
-	  if (runp->next_prio != NULL)
-	    add_request_to_runlist (runp->next_prio);
-
-	  /* Free the old element.  */
-	  __aio_free_request (runp);
-	}
-
-      runp = runlist;
-
-      /* If the runlist is empty, then we sleep for a while, waiting for
-	 something to arrive in it. */
-      if (runp == NULL && optim.aio_idle_time >= 0)
-	{
-	  struct timespec now;
-	  struct timespec wakeup_time;
-
-	  ++idle_thread_count;
-	  __clock_gettime (CLOCK_REALTIME, &now);
-	  wakeup_time.tv_sec = now.tv_sec + optim.aio_idle_time;
-	  wakeup_time.tv_nsec = now.tv_nsec;
-	  if (wakeup_time.tv_nsec >= 1000000000)
-	    {
-	      wakeup_time.tv_nsec -= 1000000000;
-	      ++wakeup_time.tv_sec;
-	    }
-	  pthread_cond_timedwait (&__aio_new_request_notification,
-				  &__aio_requests_mutex,
-				  &wakeup_time);
-	  --idle_thread_count;
-	  runp = runlist;
-	}
-
-      if (runp == NULL)
-	--nthreads;
-      else
-	{
-	  assert (runp->running == yes);
-	  runp->running = allocated;
-	  runlist = runp->next_run;
-
-	  /* If we have a request to process, and there's still another in
-	     the run list, then we need to either wake up or create a new
-	     thread to service the request that is still in the run list. */
-	  if (runlist != NULL)
-	    {
-	      /* There are at least two items in the work queue to work on.
-		 If there are other idle threads, then we should wake them
-		 up for these other work elements; otherwise, we should try
-		 to create a new thread. */
-	      if (idle_thread_count > 0)
-		pthread_cond_signal (&__aio_new_request_notification);
-	      else if (nthreads < optim.aio_threads)
-		{
-		  pthread_t thid;
-		  pthread_attr_t attr;
-
-		  /* Make sure the thread is created detached.  */
-		  pthread_attr_init (&attr);
-		  pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
-
-		  /* Now try to start a thread. If we fail, no big deal,
-		     because we know that there is at least one thread (us)
-		     that is working on AIO operations. */
-		  if (pthread_create (&thid, &attr, handle_fildes_io, NULL)
-		      == 0)
-		    ++nthreads;
-		}
-	    }
-	}
-
-      /* Release the mutex.  */
-      pthread_mutex_unlock (&__aio_requests_mutex);
-    }
-  while (runp != NULL);
-
-  return NULL;
-}
-
-
-/* Free allocated resources.  */
-libc_freeres_fn (free_res)
-{
-  size_t row;
-
-  for (row = 0; row < pool_max_size; ++row)
-    free (pool[row]);
-
-  free (pool);
-}
-
-
-/* Add newrequest to the runlist. The __abs_prio flag of newrequest must
-   be correctly set to do this. Also, you had better set newrequest's
-   "running" flag to "yes" before you release your lock or you'll throw an
-   assertion. */
-static void
-add_request_to_runlist (struct requestlist *newrequest)
-{
-  int prio = newrequest->aiocbp->aiocb.__abs_prio;
-  struct requestlist *runp;
-
-  if (runlist == NULL || runlist->aiocbp->aiocb.__abs_prio < prio)
-    {
-      newrequest->next_run = runlist;
-      runlist = newrequest;
-    }
-  else
-    {
-      runp = runlist;
-
-      while (runp->next_run != NULL
-	     && runp->next_run->aiocbp->aiocb.__abs_prio >= prio)
-	runp = runp->next_run;
-
-      newrequest->next_run = runp->next_run;
-      runp->next_run = newrequest;
-    }
-}
diff --git a/sysdeps/pthread/aio_misc.h b/sysdeps/pthread/aio_misc.h
deleted file mode 100644
index e23524cffe..0000000000
--- a/sysdeps/pthread/aio_misc.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/* Copyright (C) 1997-2021 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/>.  */
-
-#ifndef _AIO_MISC_H
-#define _AIO_MISC_H	1
-
-#include <aio.h>
-#include <pthread.h>
-
-
-/* Extend the operation enum.  */
-enum
-{
-  LIO_DSYNC = LIO_NOP + 1,
-  LIO_SYNC,
-  LIO_READ64 = LIO_READ | 128,
-  LIO_WRITE64 = LIO_WRITE | 128
-};
-
-
-/* Union of the two request types.  */
-typedef union
-  {
-    struct aiocb aiocb;
-    struct aiocb64 aiocb64;
-  } aiocb_union;
-
-
-/* Used to synchronize.  */
-struct waitlist
-  {
-    struct waitlist *next;
-
-    /* The next two fields is used in synchronous `lio_listio' operations.  */
-#ifndef DONT_NEED_AIO_MISC_COND
-    pthread_cond_t *cond;
-#endif
-    int *result;
-
-    volatile unsigned int *counterp;
-    /* The next field is used in asynchronous `lio_listio' operations.  */
-    struct sigevent *sigevp;
-  };
-
-
-/* Status of a request.  */
-enum
-{
-  no,
-  queued,
-  yes,
-  allocated,
-  done
-};
-
-
-/* Used to queue requests..  */
-struct requestlist
-  {
-    int running;
-
-    struct requestlist *last_fd;
-    struct requestlist *next_fd;
-    struct requestlist *next_prio;
-    struct requestlist *next_run;
-
-    /* Pointer to the actual data.  */
-    aiocb_union *aiocbp;
-
-    /* List of waiting processes.  */
-    struct waitlist *waiting;
-  };
-
-
-/* Lock for global I/O list of requests.  */
-extern pthread_mutex_t __aio_requests_mutex attribute_hidden;
-
-
-/* Enqueue request.  */
-extern struct requestlist *__aio_enqueue_request (aiocb_union *aiocbp,
-						  int operation)
-  attribute_hidden;
-
-/* Find request entry for given AIO control block.  */
-extern struct requestlist *__aio_find_req (aiocb_union *elem) attribute_hidden;
-
-/* Find request entry for given file descriptor.  */
-extern struct requestlist *__aio_find_req_fd (int fildes) attribute_hidden;
-
-/* Remove request from the list.  */
-extern void __aio_remove_request (struct requestlist *last,
-				  struct requestlist *req, int all)
-     attribute_hidden;
-
-/* Release the entry for the request.  */
-extern void __aio_free_request (struct requestlist *req) attribute_hidden;
-
-/* Notify initiator of request and tell this everybody listening.  */
-extern void __aio_notify (struct requestlist *req) attribute_hidden;
-
-/* Notify initiator of request.  */
-extern int __aio_notify_only (struct sigevent *sigev) attribute_hidden;
-
-/* Send the signal.  */
-extern int __aio_sigqueue (int sig, const union sigval val, pid_t caller_pid)
-     attribute_hidden;
-
-#endif /* aio_misc.h */
diff --git a/sysdeps/pthread/aio_notify.c b/sysdeps/pthread/aio_notify.c
deleted file mode 100644
index a8d61503d8..0000000000
--- a/sysdeps/pthread/aio_notify.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/* Notify initiator of AIO request.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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 <pthread.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <aio_misc.h>
-#include <signal.h>
-
-#ifndef aio_start_notify_thread
-# define aio_start_notify_thread() do { } while (0)
-#endif
-
-struct notify_func
-  {
-    void (*func) (sigval_t);
-    sigval_t value;
-  };
-
-static void *
-notify_func_wrapper (void *arg)
-{
-  aio_start_notify_thread ();
-  struct notify_func *const n = arg;
-  void (*func) (sigval_t) = n->func;
-  sigval_t value = n->value;
-  free (n);
-  (*func) (value);
-  return NULL;
-}
-
-
-int
-__aio_notify_only (struct sigevent *sigev)
-{
-  int result = 0;
-
-  /* Send the signal to notify about finished processing of the request.  */
-  if (__glibc_unlikely (sigev->sigev_notify == SIGEV_THREAD))
-    {
-      /* We have to start a thread.  */
-      pthread_t tid;
-      pthread_attr_t attr, *pattr;
-
-      pattr = (pthread_attr_t *) sigev->sigev_notify_attributes;
-      if (pattr == NULL)
-	{
-	  pthread_attr_init (&attr);
-	  pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
-	  pattr = &attr;
-	}
-
-      /* SIGEV may be freed as soon as we return, so we cannot let the
-	 notification thread use that pointer.  Even though a sigval_t is
-	 only one word and the same size as a void *, we cannot just pass
-	 the value through pthread_create as the argument and have the new
-	 thread run the user's function directly, because on some machines
-	 the calling convention for a union like sigval_t is different from
-	 that for a pointer type like void *.  */
-      struct notify_func *nf = malloc (sizeof *nf);
-      if (nf == NULL)
-	result = -1;
-      else
-	{
-	  nf->func = sigev->sigev_notify_function;
-	  nf->value = sigev->sigev_value;
-	  if (pthread_create (&tid, pattr, notify_func_wrapper, nf) < 0)
-	    {
-	      free (nf);
-	      result = -1;
-	    }
-	}
-    }
-  else if (sigev->sigev_notify == SIGEV_SIGNAL)
-    {
-      /* We have to send a signal.  */
-#if _POSIX_REALTIME_SIGNALS > 0
-      /* Note that the standard gives us the option of using a plain
-	 non-queuing signal here when SA_SIGINFO is not set for the signal.  */
-      if (__aio_sigqueue (sigev->sigev_signo, sigev->sigev_value, getpid ())
-	  < 0)
-	result = -1;
-#else
-      /* There are no queued signals on this system at all.  */
-      result = raise (sigev->sigev_signo);
-#endif
-    }
-
-  return result;
-}
-
-
-void
-__aio_notify (struct requestlist *req)
-{
-  struct waitlist *waitlist;
-  struct aiocb *aiocbp = &req->aiocbp->aiocb;
-
-  if (__aio_notify_only (&aiocbp->aio_sigevent) != 0)
-    {
-      /* XXX What shall we do if already an error is set by
-	 read/write/fsync?  */
-      aiocbp->__error_code = errno;
-      aiocbp->__return_value = -1;
-    }
-
-  /* Now also notify possibly waiting threads.  */
-  waitlist = req->waiting;
-  while (waitlist != NULL)
-    {
-      struct waitlist *next = waitlist->next;
-
-      if (waitlist->sigevp == NULL)
-	{
-	  if (waitlist->result != NULL && aiocbp->__return_value == -1)
-	    *waitlist->result = -1;
-
-#ifdef DONT_NEED_AIO_MISC_COND
-	  AIO_MISC_NOTIFY (waitlist);
-#else
-	  /* Decrement the counter.  */
-	  --*waitlist->counterp;
-
-	  pthread_cond_signal (waitlist->cond);
-#endif
-	}
-      else
-	/* This is part of an asynchronous `lio_listio' operation.  If
-	   this request is the last one, send the signal.  */
-	if (--*waitlist->counterp == 0)
-	  {
-	    __aio_notify_only (waitlist->sigevp);
-	    /* This is tricky.  See lio_listio.c for the reason why
-	       this works.  */
-	    free ((void *) waitlist->counterp);
-	  }
-
-      waitlist = next;
-    }
-}
diff --git a/sysdeps/pthread/aio_read.c b/sysdeps/pthread/aio_read.c
deleted file mode 100644
index 4698e48b1c..0000000000
--- a/sysdeps/pthread/aio_read.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Asynchronous read.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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 <aio.h>
-
-#include <aio_misc.h>
-
-
-int
-aio_read (struct aiocb *aiocbp)
-{
-  return (__aio_enqueue_request ((aiocb_union *) aiocbp, LIO_READ) == NULL
-	  ? -1 : 0);
-}
diff --git a/sysdeps/pthread/aio_read64.c b/sysdeps/pthread/aio_read64.c
deleted file mode 100644
index 26b9b0b380..0000000000
--- a/sysdeps/pthread/aio_read64.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Asynchronous read, 64bit offset version.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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 <aio.h>
-
-#include <aio_misc.h>
-
-
-int
-aio_read64 (struct aiocb64 *aiocbp)
-{
-  return (__aio_enqueue_request ((aiocb_union *) aiocbp, LIO_READ64) == NULL
-	  ? -1 : 0);
-}
diff --git a/sysdeps/pthread/aio_suspend.c b/sysdeps/pthread/aio_suspend.c
deleted file mode 100644
index 6fd5b1bee2..0000000000
--- a/sysdeps/pthread/aio_suspend.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/* Suspend until termination of a requests.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-
-/* We use an UGLY hack to prevent gcc from finding us cheating.  The
-   implementations of aio_suspend and aio_suspend64 are identical and so
-   we want to avoid code duplication by using aliases.  But gcc sees
-   the different parameter lists and prints a warning.  We define here
-   a function so that aio_suspend64 has no prototype.  */
-#define aio_suspend64 XXX
-#include <aio.h>
-/* And undo the hack.  */
-#undef aio_suspend64
-
-#include <assert.h>
-#include <errno.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <sys/time.h>
-
-#include <libc-lock.h>
-#include <aio_misc.h>
-
-
-struct clparam
-{
-  const struct aiocb *const *list;
-  struct waitlist *waitlist;
-  struct requestlist **requestlist;
-#ifndef DONT_NEED_AIO_MISC_COND
-  pthread_cond_t *cond;
-#endif
-  int nent;
-};
-
-
-static void
-cleanup (void *arg)
-{
-#ifdef DONT_NEED_AIO_MISC_COND
-  /* Acquire the mutex.  If pthread_cond_*wait is used this would
-     happen implicitly.  */
-  pthread_mutex_lock (&__aio_requests_mutex);
-#endif
-
-  const struct clparam *param = (const struct clparam *) arg;
-
-  /* Now remove the entry in the waiting list for all requests
-     which didn't terminate.  */
-  int cnt = param->nent;
-  while (cnt-- > 0)
-    if (param->list[cnt] != NULL
-	&& param->list[cnt]->__error_code == EINPROGRESS)
-      {
-	struct waitlist **listp;
-
-	assert (param->requestlist[cnt] != NULL);
-
-	/* There is the chance that we cannot find our entry anymore. This
-	   could happen if the request terminated and restarted again.  */
-	listp = &param->requestlist[cnt]->waiting;
-	while (*listp != NULL && *listp != &param->waitlist[cnt])
-	  listp = &(*listp)->next;
-
-	if (*listp != NULL)
-	  *listp = (*listp)->next;
-      }
-
-#ifndef DONT_NEED_AIO_MISC_COND
-  /* Release the conditional variable.  */
-  (void) pthread_cond_destroy (param->cond);
-#endif
-
-  /* Release the mutex.  */
-  pthread_mutex_unlock (&__aio_requests_mutex);
-}
-
-#ifdef DONT_NEED_AIO_MISC_COND
-static int
-__attribute__ ((noinline))
-do_aio_misc_wait (unsigned int *cntr, const struct __timespec64 *timeout)
-{
-  int result = 0;
-
-  AIO_MISC_WAIT (result, *cntr, timeout, 1);
-
-  return result;
-}
-#endif
-
-int
-__aio_suspend_time64 (const struct aiocb *const list[], int nent,
-		      const struct __timespec64 *timeout)
-{
-  if (__glibc_unlikely (nent < 0))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  struct waitlist waitlist[nent];
-  struct requestlist *requestlist[nent];
-#ifndef DONT_NEED_AIO_MISC_COND
-  pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
-#endif
-  int cnt;
-  bool any = false;
-  int result = 0;
-  unsigned int cntr = 1;
-
-  /* Request the mutex.  */
-  pthread_mutex_lock (&__aio_requests_mutex);
-
-  /* There is not yet a finished request.  Signal the request that
-     we are working for it.  */
-  for (cnt = 0; cnt < nent; ++cnt)
-    if (list[cnt] != NULL)
-      {
-	if (list[cnt]->__error_code == EINPROGRESS)
-	  {
-	    requestlist[cnt] = __aio_find_req ((aiocb_union *) list[cnt]);
-
-	    if (requestlist[cnt] != NULL)
-	      {
-#ifndef DONT_NEED_AIO_MISC_COND
-		waitlist[cnt].cond = &cond;
-#endif
-		waitlist[cnt].result = NULL;
-		waitlist[cnt].next = requestlist[cnt]->waiting;
-		waitlist[cnt].counterp = &cntr;
-		waitlist[cnt].sigevp = NULL;
-		requestlist[cnt]->waiting = &waitlist[cnt];
-		any = true;
-	      }
-	    else
-	      /* We will never suspend.  */
-	      break;
-	  }
-	else
-	  /* We will never suspend.  */
-	  break;
-      }
-
-  struct __timespec64 ts;
-  if (timeout != NULL)
-    {
-      __clock_gettime64 (CLOCK_MONOTONIC, &ts);
-      ts.tv_sec += timeout->tv_sec;
-      ts.tv_nsec += timeout->tv_nsec;
-      if (ts.tv_nsec >= 1000000000)
-	{
-	  ts.tv_nsec -= 1000000000;
-	  ts.tv_sec++;
-	}
-    }
-
-  /* Only if none of the entries is NULL or finished to be wait.  */
-  if (cnt == nent && any)
-    {
-      struct clparam clparam =
-	{
-	  .list = list,
-	  .waitlist = waitlist,
-	  .requestlist = requestlist,
-#ifndef DONT_NEED_AIO_MISC_COND
-	  .cond = &cond,
-#endif
-	  .nent = nent
-	};
-
-      pthread_cleanup_push (cleanup, &clparam);
-
-#ifdef DONT_NEED_AIO_MISC_COND
-      result = do_aio_misc_wait (&cntr, timeout == NULL ? NULL : &ts);
-#else
-      struct timespec ts32 = valid_timespec64_to_timespec (ts);
-      result = pthread_cond_timedwait (&cond, &__aio_requests_mutex,
-				       timeout == NULL ? NULL : &ts32);
-#endif
-
-      pthread_cleanup_pop (0);
-    }
-
-  /* Now remove the entry in the waiting list for all requests
-     which didn't terminate.  */
-  while (cnt-- > 0)
-    if (list[cnt] != NULL && list[cnt]->__error_code == EINPROGRESS)
-      {
-	struct waitlist **listp;
-
-	assert (requestlist[cnt] != NULL);
-
-	/* There is the chance that we cannot find our entry anymore. This
-	   could happen if the request terminated and restarted again.  */
-	listp = &requestlist[cnt]->waiting;
-	while (*listp != NULL && *listp != &waitlist[cnt])
-	  listp = &(*listp)->next;
-
-	if (*listp != NULL)
-	  *listp = (*listp)->next;
-      }
-
-#ifndef DONT_NEED_AIO_MISC_COND
-  /* Release the conditional variable.  */
-  if (__glibc_unlikely (pthread_cond_destroy (&cond) != 0))
-    /* This must never happen.  */
-    abort ();
-#endif
-
-  if (result != 0)
-    {
-#ifndef DONT_NEED_AIO_MISC_COND
-      /* An error occurred.  Possibly it's ETIMEDOUT.  We have to translate
-	 the timeout error report of `pthread_cond_timedwait' to the
-	 form expected from `aio_suspend'.  */
-      if (result == ETIMEDOUT)
-	__set_errno (EAGAIN);
-      else
-#endif
-	__set_errno (result);
-
-      result = -1;
-    }
-
-  /* Release the mutex.  */
-  pthread_mutex_unlock (&__aio_requests_mutex);
-
-  return result;
-}
-
-#if __TIMESIZE != 64
-librt_hidden_def (__aio_suspend_time64)
-
-int
-__aio_suspend (const struct aiocb *const list[], int nent,
-               const struct timespec *timeout)
-{
-  struct __timespec64 ts64;
-
-  if (timeout != NULL)
-    ts64 = valid_timespec_to_timespec64 (*timeout);
-
-  return __aio_suspend_time64 (list, nent, timeout != NULL ? &ts64 : NULL);
-}
-#endif
-weak_alias (__aio_suspend, aio_suspend)
-weak_alias (aio_suspend, aio_suspend64)
diff --git a/sysdeps/pthread/aio_write.c b/sysdeps/pthread/aio_write.c
deleted file mode 100644
index ea55f0dbbc..0000000000
--- a/sysdeps/pthread/aio_write.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Asynchronous write.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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 <aio.h>
-
-#include <aio_misc.h>
-
-
-int
-aio_write (struct aiocb *aiocbp)
-{
-  return (__aio_enqueue_request ((aiocb_union *) aiocbp, LIO_WRITE) == NULL
-	  ? -1 : 0);
-}
diff --git a/sysdeps/pthread/aio_write64.c b/sysdeps/pthread/aio_write64.c
deleted file mode 100644
index bd6dd316be..0000000000
--- a/sysdeps/pthread/aio_write64.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Asynchronous write, 64bit offset version.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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 <aio.h>
-
-#include <aio_misc.h>
-
-
-int
-aio_write64 (struct aiocb64 *aiocbp)
-{
-  return (__aio_enqueue_request ((aiocb_union *) aiocbp, LIO_WRITE64) == NULL
-	  ? -1 : 0);
-}
diff --git a/sysdeps/pthread/lio_listio.c b/sysdeps/pthread/lio_listio.c
deleted file mode 100644
index 2cab3c2254..0000000000
--- a/sysdeps/pthread/lio_listio.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/* Enqueue and list of read or write requests.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#ifndef lio_listio
-#include <aio.h>
-#include <assert.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <aio_misc.h>
-
-#define LIO_OPCODE_BASE 0
-#endif
-
-#include <shlib-compat.h>
-
-
-/* We need this special structure to handle asynchronous I/O.  */
-struct async_waitlist
-  {
-    unsigned int counter;
-    struct sigevent sigev;
-    struct waitlist list[0];
-  };
-
-
-/* The code in glibc 2.1 to glibc 2.4 issued only one event when all
-   requests submitted with lio_listio finished.  The existing practice
-   is to issue events for the individual requests as well.  This is
-   what the new code does.  */
-#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_4)
-# define LIO_MODE(mode) ((mode) & 127)
-# define NO_INDIVIDUAL_EVENT_P(mode) ((mode) & 128)
-#else
-# define LIO_MODE(mode) mode
-# define NO_INDIVIDUAL_EVENT_P(mode) 0
-#endif
-
-
-static int
-lio_listio_internal (int mode, struct aiocb *const list[], int nent,
-		     struct sigevent *sig)
-{
-  struct sigevent defsigev;
-  struct requestlist *requests[nent];
-  int cnt;
-  volatile unsigned int total = 0;
-  int result = 0;
-
-  if (sig == NULL)
-    {
-      defsigev.sigev_notify = SIGEV_NONE;
-      sig = &defsigev;
-    }
-
-  /* Request the mutex.  */
-  pthread_mutex_lock (&__aio_requests_mutex);
-
-  /* Now we can enqueue all requests.  Since we already acquired the
-     mutex the enqueue function need not do this.  */
-  for (cnt = 0; cnt < nent; ++cnt)
-    if (list[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP)
-      {
-	if (NO_INDIVIDUAL_EVENT_P (mode))
-	  list[cnt]->aio_sigevent.sigev_notify = SIGEV_NONE;
-
-	requests[cnt] = __aio_enqueue_request ((aiocb_union *) list[cnt],
-					       (list[cnt]->aio_lio_opcode
-						| LIO_OPCODE_BASE));
-
-	if (requests[cnt] != NULL)
-	  /* Successfully enqueued.  */
-	  ++total;
-	else
-	  /* Signal that we've seen an error.  `errno' and the error code
-	     of the aiocb will tell more.  */
-	  result = -1;
-      }
-    else
-      requests[cnt] = NULL;
-
-  if (total == 0)
-    {
-      /* We don't have anything to do except signalling if we work
-	 asynchronously.  */
-
-      /* Release the mutex.  We do this before raising a signal since the
-	 signal handler might do a `siglongjmp' and then the mutex is
-	 locked forever.  */
-      pthread_mutex_unlock (&__aio_requests_mutex);
-
-      if (LIO_MODE (mode) == LIO_NOWAIT)
-	__aio_notify_only (sig);
-
-      return result;
-    }
-  else if (LIO_MODE (mode) == LIO_WAIT)
-    {
-#ifndef DONT_NEED_AIO_MISC_COND
-      pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
-      int oldstate;
-#endif
-      struct waitlist waitlist[nent];
-
-      total = 0;
-      for (cnt = 0; cnt < nent; ++cnt)
-	{
-	  assert (requests[cnt] == NULL || list[cnt] != NULL);
-
-	  if (requests[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP)
-	    {
-#ifndef DONT_NEED_AIO_MISC_COND
-	      waitlist[cnt].cond = &cond;
-#endif
-	      waitlist[cnt].result = &result;
-	      waitlist[cnt].next = requests[cnt]->waiting;
-	      waitlist[cnt].counterp = &total;
-	      waitlist[cnt].sigevp = NULL;
-	      requests[cnt]->waiting = &waitlist[cnt];
-	      ++total;
-	    }
-	}
-
-#ifdef DONT_NEED_AIO_MISC_COND
-      AIO_MISC_WAIT (result, total, NULL, 0);
-#else
-      /* Since `pthread_cond_wait'/`pthread_cond_timedwait' are cancellation
-	 points we must be careful.  We added entries to the waiting lists
-	 which we must remove.  So defer cancellation for now.  */
-      pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &oldstate);
-
-      while (total > 0)
-	pthread_cond_wait (&cond, &__aio_requests_mutex);
-
-      /* Now it's time to restore the cancellation state.  */
-      pthread_setcancelstate (oldstate, NULL);
-
-      /* Release the conditional variable.  */
-      if (pthread_cond_destroy (&cond) != 0)
-	/* This must never happen.  */
-	abort ();
-#endif
-
-      /* If any of the I/O requests failed, return -1 and set errno.  */
-      if (result != 0)
-	{
-	  __set_errno (result == EINTR ? EINTR : EIO);
-	  result = -1;
-	}
-    }
-  else
-    {
-      struct async_waitlist *waitlist;
-
-      waitlist = (struct async_waitlist *)
-	malloc (sizeof (struct async_waitlist)
-		+ (nent * sizeof (struct waitlist)));
-
-      if (waitlist == NULL)
-	{
-	  __set_errno (EAGAIN);
-	  result = -1;
-	}
-      else
-	{
-	  total = 0;
-
-	  for (cnt = 0; cnt < nent; ++cnt)
-	    {
-	      assert (requests[cnt] == NULL || list[cnt] != NULL);
-
-	      if (requests[cnt] != NULL
-		  && list[cnt]->aio_lio_opcode != LIO_NOP)
-		{
-#ifndef DONT_NEED_AIO_MISC_COND
-		  waitlist->list[cnt].cond = NULL;
-#endif
-		  waitlist->list[cnt].result = NULL;
-		  waitlist->list[cnt].next = requests[cnt]->waiting;
-		  waitlist->list[cnt].counterp = &waitlist->counter;
-		  waitlist->list[cnt].sigevp = &waitlist->sigev;
-		  requests[cnt]->waiting = &waitlist->list[cnt];
-		  ++total;
-		}
-	    }
-
-	  waitlist->counter = total;
-	  waitlist->sigev = *sig;
-	}
-    }
-
-  /* Release the mutex.  */
-  pthread_mutex_unlock (&__aio_requests_mutex);
-
-  return result;
-}
-
-
-#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_4)
-int
-attribute_compat_text_section
-__lio_listio_21 (int mode, struct aiocb *const list[], int nent,
-		 struct sigevent *sig)
-{
-  /* Check arguments.  */
-  if (mode != LIO_WAIT && mode != LIO_NOWAIT)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  return lio_listio_internal (mode | LIO_NO_INDIVIDUAL_EVENT, list, nent, sig);
-}
-compat_symbol (librt, __lio_listio_21, lio_listio, GLIBC_2_1);
-#endif
-
-
-int
-__lio_listio_item_notify (int mode, struct aiocb *const list[], int nent,
-			  struct sigevent *sig)
-{
-    /* Check arguments.  */
-  if (mode != LIO_WAIT && mode != LIO_NOWAIT)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  return lio_listio_internal (mode, list, nent, sig);
-}
-versioned_symbol (librt, __lio_listio_item_notify, lio_listio, GLIBC_2_4);
diff --git a/sysdeps/pthread/lio_listio64.c b/sysdeps/pthread/lio_listio64.c
deleted file mode 100644
index 111c883a2f..0000000000
--- a/sysdeps/pthread/lio_listio64.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/* Enqueue and list of read or write requests, 64bit offset version.
-   Copyright (C) 1997-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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 <aio.h>
-#include <assert.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <aio_misc.h>
-
-#define lio_listio lio_listio64
-#define __lio_listio_21 __lio_listio64_21
-#define __lio_listio_item_notify __lio_listio64_item_notify
-#define aiocb aiocb64
-#define LIO_OPCODE_BASE 128
-#include <lio_listio.c>
diff --git a/sysdeps/pthread/timer_create.c b/sysdeps/pthread/timer_create.c
deleted file mode 100644
index 2808f5b32b..0000000000
--- a/sysdeps/pthread/timer_create.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
-
-   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 <signal.h>
-#include <pthread.h>
-#include <time.h>
-#include <unistd.h>
-
-#include "posix-timer.h"
-
-
-/* Create new per-process timer using CLOCK.  */
-int
-timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
-{
-  int retval = -1;
-  struct timer_node *newtimer = NULL;
-  struct thread_node *thread = NULL;
-
-  if (0
-#if defined _POSIX_CPUTIME && _POSIX_CPUTIME >= 0
-      || clock_id == CLOCK_PROCESS_CPUTIME_ID
-#endif
-#if defined _POSIX_THREAD_CPUTIME && _POSIX_THREAD_CPUTIME >= 0
-      || clock_id == CLOCK_THREAD_CPUTIME_ID
-#endif
-      )
-    {
-      /* We don't allow timers for CPU clocks.  At least not in the
-	 moment.  */
-      __set_errno (ENOTSUP);
-      return -1;
-    }
-
-  if (clock_id != CLOCK_REALTIME)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  pthread_once (&__timer_init_once_control, __timer_init_once);
-
-  if (__timer_init_failed)
-    {
-      __set_errno (ENOMEM);
-      return -1;
-    }
-
-  pthread_mutex_lock (&__timer_mutex);
-
-  newtimer = __timer_alloc ();
-  if (__glibc_unlikely (newtimer == NULL))
-    {
-      __set_errno (EAGAIN);
-      goto unlock_bail;
-    }
-
-  if (evp != NULL)
-    newtimer->event = *evp;
-  else
-    {
-      newtimer->event.sigev_notify = SIGEV_SIGNAL;
-      newtimer->event.sigev_signo = SIGALRM;
-      newtimer->event.sigev_value.sival_ptr = newtimer;
-      newtimer->event.sigev_notify_function = 0;
-    }
-
-  newtimer->event.sigev_notify_attributes = &newtimer->attr;
-  newtimer->creator_pid = getpid ();
-
-  switch (__builtin_expect (newtimer->event.sigev_notify, SIGEV_SIGNAL))
-    {
-    case SIGEV_NONE:
-    case SIGEV_SIGNAL:
-      /* We have a global thread for delivering timed signals.
-	 If it is not running, try to start it up.  */
-      thread = &__timer_signal_thread_rclk;
-      if (! thread->exists)
-	{
-	  if (__builtin_expect (__timer_thread_start (thread),
-				1) < 0)
-	    {
-	      __set_errno (EAGAIN);
-	      goto unlock_bail;
-            }
-        }
-      break;
-
-    case SIGEV_THREAD:
-      /* Copy over thread attributes or set up default ones.  */
-      if (evp->sigev_notify_attributes)
-	newtimer->attr = *(pthread_attr_t *) evp->sigev_notify_attributes;
-      else
-	pthread_attr_init (&newtimer->attr);
-
-      /* Ensure thread attributes call for deatched thread.  */
-      pthread_attr_setdetachstate (&newtimer->attr, PTHREAD_CREATE_DETACHED);
-
-      /* Try to find existing thread having the right attributes.  */
-      thread = __timer_thread_find_matching (&newtimer->attr, clock_id);
-
-      /* If no existing thread has these attributes, try to allocate one.  */
-      if (thread == NULL)
-	thread = __timer_thread_alloc (&newtimer->attr, clock_id);
-
-      /* Out of luck; no threads are available.  */
-      if (__glibc_unlikely (thread == NULL))
-	{
-	  __set_errno (EAGAIN);
-	  goto unlock_bail;
-	}
-
-      /* If the thread is not running already, try to start it.  */
-      if (! thread->exists
-	  && __builtin_expect (! __timer_thread_start (thread), 0))
-	{
-	  __set_errno (EAGAIN);
-	  goto unlock_bail;
-	}
-      break;
-
-    default:
-      __set_errno (EINVAL);
-      goto unlock_bail;
-    }
-
-  newtimer->clock = clock_id;
-  newtimer->abstime = 0;
-  newtimer->armed = 0;
-  newtimer->thread = thread;
-
-  *timerid = timer_ptr2id (newtimer);
-  retval = 0;
-
-  if (__builtin_expect (retval, 0) == -1)
-    {
-    unlock_bail:
-      if (thread != NULL)
-	__timer_thread_dealloc (thread);
-      if (newtimer != NULL)
-	{
-	  timer_delref (newtimer);
-	  __timer_dealloc (newtimer);
-	}
-    }
-
-  pthread_mutex_unlock (&__timer_mutex);
-
-  return retval;
-}
diff --git a/sysdeps/pthread/timer_delete.c b/sysdeps/pthread/timer_delete.c
deleted file mode 100644
index c6f6d9743d..0000000000
--- a/sysdeps/pthread/timer_delete.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
-
-   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 <assert.h>
-#include <errno.h>
-#include <pthread.h>
-#include <time.h>
-
-#include "posix-timer.h"
-
-
-/* Delete timer TIMERID.  */
-int
-timer_delete (timer_t timerid)
-{
-  struct timer_node *timer;
-  int retval = -1;
-
-  pthread_mutex_lock (&__timer_mutex);
-
-  timer = timer_id2ptr (timerid);
-  if (! timer_valid (timer))
-    /* Invalid timer ID or the timer is not in use.  */
-    __set_errno (EINVAL);
-  else
-    {
-      if (timer->armed && timer->thread != NULL)
-	{
-	  struct thread_node *thread = timer->thread;
-	  assert (thread != NULL);
-
-	  /* If thread is cancelled while waiting for handler to terminate,
-	     the mutex is unlocked and timer_delete is aborted.  */
-	  pthread_cleanup_push (__timer_mutex_cancel_handler, &__timer_mutex);
-
-	  /* If timer is currently being serviced, wait for it to finish.  */
-	  while (thread->current_timer == timer)
-	    pthread_cond_wait (&thread->cond, &__timer_mutex);
-
-	  pthread_cleanup_pop (0);
-        }
-
-      /* Remove timer from whatever queue it may be on and deallocate it.  */
-      timer->inuse = TIMER_DELETED;
-      list_unlink_ip (&timer->links);
-      timer_delref (timer);
-      retval = 0;
-    }
-
-  pthread_mutex_unlock (&__timer_mutex);
-
-  return retval;
-}
diff --git a/sysdeps/pthread/timer_getoverr.c b/sysdeps/pthread/timer_getoverr.c
deleted file mode 100644
index c1952f80c6..0000000000
--- a/sysdeps/pthread/timer_getoverr.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
-
-   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 <pthread.h>
-#include <time.h>
-
-#include "posix-timer.h"
-
-
-/* Get expiration overrun for timer TIMERID.  */
-int
-timer_getoverrun (timer_t timerid)
-{
-  struct timer_node *timer;
-  int retval = -1;
-
-  pthread_mutex_lock (&__timer_mutex);
-
-  if (! timer_valid (timer = timer_id2ptr (timerid)))
-    __set_errno (EINVAL);
-  else
-    retval = timer->overrun_count;
-
-  pthread_mutex_unlock (&__timer_mutex);
-
-  return retval;
-}
diff --git a/sysdeps/pthread/timer_gettime.c b/sysdeps/pthread/timer_gettime.c
deleted file mode 100644
index dd3b4a6281..0000000000
--- a/sysdeps/pthread/timer_gettime.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
-
-   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 <pthread.h>
-#include <time.h>
-
-#include "posix-timer.h"
-
-
-/* Get current value of timer TIMERID and store it in VLAUE.  */
-int
-timer_gettime (timer_t timerid, struct itimerspec *value)
-{
-  struct timer_node *timer;
-  struct timespec now, expiry;
-  int retval = -1, armed = 0, valid;
-  clock_t clock = 0;
-
-  pthread_mutex_lock (&__timer_mutex);
-
-  timer = timer_id2ptr (timerid);
-  valid = timer_valid (timer);
-
-  if (valid) {
-    armed = timer->armed;
-    expiry = timer->expirytime;
-    clock = timer->clock;
-    value->it_interval = timer->value.it_interval;
-  }
-
-  pthread_mutex_unlock (&__timer_mutex);
-
-  if (valid)
-    {
-      if (armed)
-	{
-	  __clock_gettime (clock, &now);
-	  if (timespec_compare (&now, &expiry) < 0)
-	    timespec_sub (&value->it_value, &expiry, &now);
-	  else
-	    {
-	      value->it_value.tv_sec = 0;
-	      value->it_value.tv_nsec = 0;
-	    }
-	}
-      else
-	{
-	  value->it_value.tv_sec = 0;
-	  value->it_value.tv_nsec = 0;
-	}
-
-      retval = 0;
-    }
-  else
-    __set_errno (EINVAL);
-
-  return retval;
-}
diff --git a/sysdeps/pthread/timer_routines.c b/sysdeps/pthread/timer_routines.c
deleted file mode 100644
index 059ebef265..0000000000
--- a/sysdeps/pthread/timer_routines.c
+++ /dev/null
@@ -1,555 +0,0 @@
-/* Helper code for POSIX timer implementation on NPTL.
-   Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
-
-   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 <assert.h>
-#include <errno.h>
-#include <pthread.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sysdep.h>
-#include <time.h>
-#include <unistd.h>
-#include <sys/syscall.h>
-
-#include "posix-timer.h"
-#include <timer_routines.h>
-
-#ifndef DELAYTIMER_MAX
-# define DELAYTIMER_MAX INT_MAX
-#endif
-
-/* Number of threads used.  */
-#define THREAD_MAXNODES	16
-
-/* Array containing the descriptors for the used threads.  */
-static struct thread_node thread_array[THREAD_MAXNODES];
-
-/* Static array with the structures for all the timers.  */
-struct timer_node __timer_array[TIMER_MAX];
-
-/* Global lock to protect operation on the lists.  */
-pthread_mutex_t __timer_mutex = PTHREAD_MUTEX_INITIALIZER;
-
-/* Variable to protext initialization.  */
-pthread_once_t __timer_init_once_control = PTHREAD_ONCE_INIT;
-
-/* Nonzero if initialization of timer implementation failed.  */
-int __timer_init_failed;
-
-/* Node for the thread used to deliver signals.  */
-struct thread_node __timer_signal_thread_rclk;
-
-/* Lists to keep free and used timers and threads.  */
-static struct list_head timer_free_list;
-static struct list_head thread_free_list;
-static struct list_head thread_active_list;
-
-
-#ifdef __NR_rt_sigqueueinfo
-extern int __syscall_rt_sigqueueinfo (int, int, siginfo_t *);
-#endif
-
-
-/* List handling functions.  */
-static inline void
-list_append (struct list_head *list, struct list_head *newp)
-{
-  newp->prev = list->prev;
-  newp->next = list;
-  list->prev->next = newp;
-  list->prev = newp;
-}
-
-static inline void
-list_insbefore (struct list_head *list, struct list_head *newp)
-{
-  list_append (list, newp);
-}
-
-/*
- * Like list_unlink_ip, except that calling it on a node that
- * is already unlinked is disastrous rather than a noop.
- */
-
-static inline void
-list_unlink (struct list_head *list)
-{
-  struct list_head *lnext = list->next, *lprev = list->prev;
-
-  lnext->prev = lprev;
-  lprev->next = lnext;
-}
-
-static inline struct list_head *
-list_first (struct list_head *list)
-{
-  return list->next;
-}
-
-static inline struct list_head *
-list_null (struct list_head *list)
-{
-  return list;
-}
-
-static inline struct list_head *
-list_next (struct list_head *list)
-{
-  return list->next;
-}
-
-static inline int
-list_isempty (struct list_head *list)
-{
-  return list->next == list;
-}
-
-
-/* Functions build on top of the list functions.  */
-static inline struct thread_node *
-thread_links2ptr (struct list_head *list)
-{
-  return (struct thread_node *) ((char *) list
-				 - offsetof (struct thread_node, links));
-}
-
-static inline struct timer_node *
-timer_links2ptr (struct list_head *list)
-{
-  return (struct timer_node *) ((char *) list
-				- offsetof (struct timer_node, links));
-}
-
-
-/* Initialize a newly allocated thread structure.  */
-static void
-thread_init (struct thread_node *thread, const pthread_attr_t *attr, clockid_t clock_id)
-{
-  if (attr != NULL)
-    thread->attr = *attr;
-  else
-    {
-      pthread_attr_init (&thread->attr);
-      pthread_attr_setdetachstate (&thread->attr, PTHREAD_CREATE_DETACHED);
-    }
-
-  thread->exists = 0;
-  INIT_LIST_HEAD (&thread->timer_queue);
-  pthread_cond_init (&thread->cond, 0);
-  thread->current_timer = 0;
-  thread->captured = pthread_self ();
-  thread->clock_id = clock_id;
-}
-
-
-/* Initialize the global lists, and acquire global resources.  Error
-   reporting is done by storing a non-zero value to the global variable
-   timer_init_failed.  */
-static void
-init_module (void)
-{
-  int i;
-
-  INIT_LIST_HEAD (&timer_free_list);
-  INIT_LIST_HEAD (&thread_free_list);
-  INIT_LIST_HEAD (&thread_active_list);
-
-  for (i = 0; i < TIMER_MAX; ++i)
-    {
-      list_append (&timer_free_list, &__timer_array[i].links);
-      __timer_array[i].inuse = TIMER_FREE;
-    }
-
-  for (i = 0; i < THREAD_MAXNODES; ++i)
-    list_append (&thread_free_list, &thread_array[i].links);
-
-  thread_init (&__timer_signal_thread_rclk, 0, CLOCK_REALTIME);
-}
-
-
-/* This is a handler executed in a child process after a fork()
-   occurs.  It reinitializes the module, resetting all of the data
-   structures to their initial state.  The mutex is initialized in
-   case it was locked in the parent process.  */
-static void
-reinit_after_fork (void)
-{
-  init_module ();
-  pthread_mutex_init (&__timer_mutex, 0);
-}
-
-
-/* Called once form pthread_once in timer_init. This initializes the
-   module and ensures that reinit_after_fork will be executed in any
-   child process.  */
-void
-__timer_init_once (void)
-{
-  init_module ();
-  pthread_atfork (0, 0, reinit_after_fork);
-}
-
-
-/* Deinitialize a thread that is about to be deallocated.  */
-static void
-thread_deinit (struct thread_node *thread)
-{
-  assert (list_isempty (&thread->timer_queue));
-  pthread_cond_destroy (&thread->cond);
-}
-
-
-/* Allocate a thread structure from the global free list.  Global
-   mutex lock must be held by caller.  The thread is moved to
-   the active list. */
-struct thread_node *
-__timer_thread_alloc (const pthread_attr_t *desired_attr, clockid_t clock_id)
-{
-  struct list_head *node = list_first (&thread_free_list);
-
-  if (node != list_null (&thread_free_list))
-    {
-      struct thread_node *thread = thread_links2ptr (node);
-      list_unlink (node);
-      thread_init (thread, desired_attr, clock_id);
-      list_append (&thread_active_list, node);
-      return thread;
-    }
-
-  return 0;
-}
-
-
-/* Return a thread structure to the global free list.  Global lock
-   must be held by caller.  */
-void
-__timer_thread_dealloc (struct thread_node *thread)
-{
-  thread_deinit (thread);
-  list_unlink (&thread->links);
-  list_append (&thread_free_list, &thread->links);
-}
-
-
-/* Each of our threads which terminates executes this cleanup
-   handler. We never terminate threads ourselves; if a thread gets here
-   it means that the evil application has killed it.  If the thread has
-   timers, these require servicing and so we must hire a replacement
-   thread right away.  We must also unblock another thread that may
-   have been waiting for this thread to finish servicing a timer (see
-   timer_delete()).  */
-
-static void
-thread_cleanup (void *val)
-{
-  if (val != NULL)
-    {
-      struct thread_node *thread = val;
-
-      /* How did the signal thread get killed?  */
-      assert (thread != &__timer_signal_thread_rclk);
-
-      pthread_mutex_lock (&__timer_mutex);
-
-      thread->exists = 0;
-
-      /* We are no longer processing a timer event.  */
-      thread->current_timer = 0;
-
-      if (list_isempty (&thread->timer_queue))
-	__timer_thread_dealloc (thread);
-      else
-	(void) __timer_thread_start (thread);
-
-      pthread_mutex_unlock (&__timer_mutex);
-
-      /* Unblock potentially blocked timer_delete().  */
-      pthread_cond_broadcast (&thread->cond);
-    }
-}
-
-
-/* Handle a timer which is supposed to go off now.  */
-static void
-thread_expire_timer (struct thread_node *self, struct timer_node *timer)
-{
-  self->current_timer = timer; /* Lets timer_delete know timer is running. */
-
-  pthread_mutex_unlock (&__timer_mutex);
-
-  switch (__builtin_expect (timer->event.sigev_notify, SIGEV_SIGNAL))
-    {
-    case SIGEV_NONE:
-      break;
-
-    case SIGEV_SIGNAL:
-#ifdef __NR_rt_sigqueueinfo
-      {
-	siginfo_t info;
-
-	/* First, clear the siginfo_t structure, so that we don't pass our
-	   stack content to other tasks.  */
-	memset (&info, 0, sizeof (siginfo_t));
-	/* We must pass the information about the data in a siginfo_t
-           value.  */
-	info.si_signo = timer->event.sigev_signo;
-	info.si_code = SI_TIMER;
-	info.si_pid = timer->creator_pid;
-	info.si_uid = getuid ();
-	info.si_value = timer->event.sigev_value;
-
-	INLINE_SYSCALL (rt_sigqueueinfo, 3, info.si_pid, info.si_signo, &info);
-      }
-#else
-      if (pthread_kill (self->captured, timer->event.sigev_signo) != 0)
-	{
-	  if (pthread_kill (self->id, timer->event.sigev_signo) != 0)
-	    abort ();
-        }
-#endif
-      break;
-
-    case SIGEV_THREAD:
-      timer->event.sigev_notify_function (timer->event.sigev_value);
-      break;
-
-    default:
-      assert (! "unknown event");
-      break;
-    }
-
-  pthread_mutex_lock (&__timer_mutex);
-
-  self->current_timer = 0;
-
-  pthread_cond_broadcast (&self->cond);
-}
-
-
-/* Thread function; executed by each timer thread. The job of this
-   function is to wait on the thread's timer queue and expire the
-   timers in chronological order as close to their scheduled time as
-   possible.  */
-static void
-__attribute__ ((noreturn))
-thread_func (void *arg)
-{
-  struct thread_node *self = arg;
-
-  /* Register cleanup handler, in case rogue application terminates
-     this thread.  (This cannot happen to __timer_signal_thread, which
-     doesn't invoke application callbacks). */
-
-  pthread_cleanup_push (thread_cleanup, self);
-
-  pthread_mutex_lock (&__timer_mutex);
-
-  while (1)
-    {
-      struct list_head *first;
-      struct timer_node *timer = NULL;
-
-      /* While the timer queue is not empty, inspect the first node.  */
-      first = list_first (&self->timer_queue);
-      if (first != list_null (&self->timer_queue))
-	{
-	  struct timespec now;
-
-	  timer = timer_links2ptr (first);
-
-	  /* This assumes that the elements of the list of one thread
-	     are all for the same clock.  */
-	  __clock_gettime (timer->clock, &now);
-
-	  while (1)
-	    {
-	      /* If the timer is due or overdue, remove it from the queue.
-		 If it's a periodic timer, re-compute its new time and
-		 requeue it.  Either way, perform the timer expiry. */
-	      if (timespec_compare (&now, &timer->expirytime) < 0)
-		break;
-
-	      list_unlink_ip (first);
-
-	      if (__builtin_expect (timer->value.it_interval.tv_sec, 0) != 0
-		  || timer->value.it_interval.tv_nsec != 0)
-		{
-		  timer->overrun_count = 0;
-		  timespec_add (&timer->expirytime, &timer->expirytime,
-				&timer->value.it_interval);
-		  while (timespec_compare (&timer->expirytime, &now) < 0)
-		    {
-		      timespec_add (&timer->expirytime, &timer->expirytime,
-				    &timer->value.it_interval);
-		      if (timer->overrun_count < DELAYTIMER_MAX)
-			++timer->overrun_count;
-		    }
-		  __timer_thread_queue_timer (self, timer);
-		}
-
-	      thread_expire_timer (self, timer);
-
-	      first = list_first (&self->timer_queue);
-	      if (first == list_null (&self->timer_queue))
-		break;
-
-	      timer = timer_links2ptr (first);
-	    }
-	}
-
-      /* If the queue is not empty, wait until the expiry time of the
-	 first node.  Otherwise wait indefinitely.  Insertions at the
-	 head of the queue must wake up the thread by broadcasting
-	 this condition variable.  */
-      if (timer != NULL)
-	pthread_cond_timedwait (&self->cond, &__timer_mutex,
-				&timer->expirytime);
-      else
-	pthread_cond_wait (&self->cond, &__timer_mutex);
-    }
-  /* This macro will never be executed since the while loop loops
-     forever - but we have to add it for proper nesting.  */
-  pthread_cleanup_pop (1);
-}
-
-
-/* Enqueue a timer in wakeup order in the thread's timer queue.
-   Returns 1 if the timer was inserted at the head of the queue,
-   causing the queue's next wakeup time to change. */
-
-int
-__timer_thread_queue_timer (struct thread_node *thread,
-			    struct timer_node *insert)
-{
-  struct list_head *iter;
-  int athead = 1;
-
-  for (iter = list_first (&thread->timer_queue);
-       iter != list_null (&thread->timer_queue);
-        iter = list_next (iter))
-    {
-      struct timer_node *timer = timer_links2ptr (iter);
-
-      if (timespec_compare (&insert->expirytime, &timer->expirytime) < 0)
-	  break;
-      athead = 0;
-    }
-
-  list_insbefore (iter, &insert->links);
-  return athead;
-}
-
-
-/* Start a thread and associate it with the given thread node.  Global
-   lock must be held by caller.  */
-int
-__timer_thread_start (struct thread_node *thread)
-{
-  int retval = 1;
-  sigset_t set, oset;
-
-  assert (!thread->exists);
-  thread->exists = 1;
-
-  sigfillset (&set);
-  pthread_sigmask (SIG_SETMASK, &set, &oset);
-
-  if (pthread_create (&thread->id, &thread->attr,
-		      (void *(*) (void *)) thread_func, thread) != 0)
-    {
-      thread->exists = 0;
-      retval = -1;
-    }
-
-  pthread_sigmask (SIG_SETMASK, &oset, NULL);
-
-  return retval;
-}
-
-
-void
-__timer_thread_wakeup (struct thread_node *thread)
-{
-  pthread_cond_broadcast (&thread->cond);
-}
-
-
-
-/* Search the list of active threads and find one which has matching
-   attributes.  Global mutex lock must be held by caller.  */
-struct thread_node *
-__timer_thread_find_matching (const pthread_attr_t *desired_attr,
-			      clockid_t desired_clock_id)
-{
-  struct list_head *iter = list_first (&thread_active_list);
-
-  while (iter != list_null (&thread_active_list))
-    {
-      struct thread_node *candidate = thread_links2ptr (iter);
-
-      if (thread_attr_compare (desired_attr, &candidate->attr)
-	  && desired_clock_id == candidate->clock_id)
-	return candidate;
-
-      iter = list_next (iter);
-    }
-
-  return NULL;
-}
-
-
-/* Grab a free timer structure from the global free list.  The global
-   lock must be held by the caller.  */
-struct timer_node *
-__timer_alloc (void)
-{
-  struct list_head *node = list_first (&timer_free_list);
-
-  if (node != list_null (&timer_free_list))
-    {
-      struct timer_node *timer = timer_links2ptr (node);
-      list_unlink_ip (node);
-      timer->inuse = TIMER_INUSE;
-      timer->refcount = 1;
-      return timer;
-    }
-
-  return NULL;
-}
-
-
-/* Return a timer structure to the global free list.  The global lock
-   must be held by the caller.  */
-void
-__timer_dealloc (struct timer_node *timer)
-{
-  assert (timer->refcount == 0);
-  timer->thread = NULL;	/* Break association between timer and thread.  */
-  timer->inuse = TIMER_FREE;
-  list_append (&timer_free_list, &timer->links);
-}
-
-
-/* Thread cancellation handler which unlocks a mutex.  */
-void
-__timer_mutex_cancel_handler (void *arg)
-{
-  pthread_mutex_unlock (arg);
-}
diff --git a/sysdeps/pthread/timer_settime.c b/sysdeps/pthread/timer_settime.c
deleted file mode 100644
index c05adf166f..0000000000
--- a/sysdeps/pthread/timer_settime.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
-
-   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 <pthread.h>
-#include <time.h>
-
-#include "posix-timer.h"
-
-
-/* Set timer TIMERID to VALUE, returning old value in OVLAUE.  */
-int
-timer_settime (timer_t timerid, int flags, const struct itimerspec *value,
-	       struct itimerspec *ovalue)
-{
-  struct timer_node *timer;
-  struct thread_node *thread = NULL;
-  struct timespec now;
-  int have_now = 0, need_wakeup = 0;
-  int retval = -1;
-
-  timer = timer_id2ptr (timerid);
-  if (timer == NULL)
-    {
-      __set_errno (EINVAL);
-      goto bail;
-    }
-
-  if (! valid_nanoseconds (value->it_interval.tv_nsec)
-      || ! valid_nanoseconds (value->it_value.tv_nsec))
-    {
-      __set_errno (EINVAL);
-      goto bail;
-    }
-
-  /* Will need to know current time since this is a relative timer;
-     might as well make the system call outside of the lock now! */
-
-  if ((flags & TIMER_ABSTIME) == 0)
-    {
-      __clock_gettime (timer->clock, &now);
-      have_now = 1;
-    }
-
-  pthread_mutex_lock (&__timer_mutex);
-  timer_addref (timer);
-
-  /* One final check of timer validity; this one is possible only
-     until we have the mutex, because it accesses the inuse flag. */
-
-  if (! timer_valid(timer))
-    {
-      __set_errno (EINVAL);
-      goto unlock_bail;
-    }
-
-  if (ovalue != NULL)
-    {
-      ovalue->it_interval = timer->value.it_interval;
-
-      if (timer->armed)
-	{
-	  if (! have_now)
-	    {
-	      pthread_mutex_unlock (&__timer_mutex);
-	      __clock_gettime (timer->clock, &now);
-	      have_now = 1;
-	      pthread_mutex_lock (&__timer_mutex);
-	      timer_addref (timer);
-	    }
-
-	  timespec_sub (&ovalue->it_value, &timer->expirytime, &now);
-	}
-      else
-	{
-	  ovalue->it_value.tv_sec = 0;
-	  ovalue->it_value.tv_nsec = 0;
-	}
-    }
-
-  timer->value = *value;
-
-  list_unlink_ip (&timer->links);
-  timer->armed = 0;
-
-  thread = timer->thread;
-
-  /* A value of { 0, 0 } causes the timer to be stopped. */
-  if (value->it_value.tv_sec != 0
-      || __builtin_expect (value->it_value.tv_nsec != 0, 1))
-    {
-      if ((flags & TIMER_ABSTIME) != 0)
-	/* The user specified the expiration time.  */
-	timer->expirytime = value->it_value;
-      else
-	timespec_add (&timer->expirytime, &now, &value->it_value);
-
-      /* Only need to wake up the thread if timer is inserted
-	 at the head of the queue. */
-      if (thread != NULL)
-	need_wakeup = __timer_thread_queue_timer (thread, timer);
-      timer->armed = 1;
-    }
-
-  retval = 0;
-
-unlock_bail:
-  timer_delref (timer);
-  pthread_mutex_unlock (&__timer_mutex);
-
-bail:
-  if (thread != NULL && need_wakeup)
-    __timer_thread_wakeup (thread);
-
-  return retval;
-}