Update.

2003-03-25  Ulrich Drepper  <drepper@redhat.com>

	* csu/tst-atomic.c: Adjust tests to what atomic_add_negative and
	atomic_add_zero were supposed to do.
	* include/atomic.h: Adjust atomic_add_negative and atomic_add_zero
	to x86 behavior.

	* sysdeps/generic/bits/typesizes.h (__TIMER_T_TYPE): Define as void*.
	This matches the new timer implementation.
	* sysdeps/unix/sysv/linux/bits/siginfo.h (struct siginfo): Adjust
	timer info for what the kernel provides these days.
	(struct sigevent): Add _tid field.
	Define SIGEV_THREAD_ID.

	* Versions.def (librt): Add GLIBC_2.3.3.

	* abilist/libpthread.abilist: Update for nptl.

35 files changed, 1039 insertions, 6 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/allocrtsig.c b/nptl/sysdeps/unix/sysv/linux/allocrtsig.c
index e3622c6076..265416999a 100644
--- a/nptl/sysdeps/unix/sysv/linux/allocrtsig.c
+++ b/nptl/sysdeps/unix/sysv/linux/allocrtsig.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -20,7 +20,7 @@
 #include <signal.h>
 
 
-static int current_rtmin = __SIGRTMIN + 1;
+static int current_rtmin = __SIGRTMIN + 2;
 static int current_rtmax = __SIGRTMAX;
 
 
diff --git a/nptl/sysdeps/unix/sysv/linux/bits/local_lim.h b/nptl/sysdeps/unix/sysv/linux/bits/local_lim.h
index 90564cbfe2..7f44549599 100644
--- a/nptl/sysdeps/unix/sysv/linux/bits/local_lim.h
+++ b/nptl/sysdeps/unix/sysv/linux/bits/local_lim.h
@@ -73,9 +73,6 @@
 /* Minimum size for a thread.  We are free to choose a reasonable value.  */
 #define PTHREAD_STACK_MIN	16384
 
-/* Maximum number of POSIX timers available.  */
-#define TIMER_MAX	256
-
 /* Maximum number of timer expiration overruns.  */
 #define DELAYTIMER_MAX	2147483647
 
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/Versions b/nptl/sysdeps/unix/sysv/linux/ia64/Versions
new file mode 100644
index 0000000000..3b111ddb51
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/Versions
@@ -0,0 +1,7 @@
+librt {
+  GLIBC_2.3.3 {
+    # Changed timer_t.
+    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_settime;
+  }
+}
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/timer_create.c b/nptl/sysdeps/unix/sysv/linux/ia64/timer_create.c
new file mode 100644
index 0000000000..172223af3f
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/timer_create.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_create.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/timer_delete.c b/nptl/sysdeps/unix/sysv/linux/ia64/timer_delete.c
new file mode 100644
index 0000000000..537516e0aa
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/timer_delete.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_delete.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/timer_getoverr.c b/nptl/sysdeps/unix/sysv/linux/ia64/timer_getoverr.c
new file mode 100644
index 0000000000..3f21a73c98
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/timer_getoverr.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_getoverr.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/timer_gettime.c b/nptl/sysdeps/unix/sysv/linux/ia64/timer_gettime.c
new file mode 100644
index 0000000000..a50143adc5
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/timer_gettime.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_gettime.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/timer_settime.c b/nptl/sysdeps/unix/sysv/linux/ia64/timer_settime.c
new file mode 100644
index 0000000000..37baeffacc
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/timer_settime.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_settime.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/kernel-posix-timers.h b/nptl/sysdeps/unix/sysv/linux/kernel-posix-timers.h
new file mode 100644
index 0000000000..6e7e029a2d
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/kernel-posix-timers.h
@@ -0,0 +1,62 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <pthread.h>
+#include <setjmp.h>
+#include <signal.h>
+
+
+/* Nonzero if the system calls are not available.  */
+extern int __no_posix_timers attribute_hidden;
+
+/* Helper function to implement SIGEV_THREAD.  */
+extern void *__timer_helper_thread (void *arg) attribute_hidden;
+
+
+/* Type of timers in the kernel.  */
+typedef int kernel_timer_t;
+
+
+/* Internal representation of timer.  */
+struct timer
+{
+  /* Notification mechanism.  */
+  int sigev_notify;
+
+  /* Timer ID returned by the kernel.  */
+  kernel_timer_t ktimerid;
+
+  /* All new elements must be added after ktimerid.  And if the thrfunc
+     element is not the third element anymore the memory allocation in
+     timer_create needs to be changed.  */
+
+  /* Parameters for the thread to be started for SIGEV_THREAD.  */
+  void (*thrfunc) (sigval_t);
+  sigval_t sival;
+  pthread_attr_t attr;
+
+  /* Id of the helper thread.  */
+  pthread_t th;
+
+  /* Barrier used for synchronization.  */
+  pthread_barrier_t bar;
+};
+
+/* This is the signal the kernel will send to the helper thread.  */
+#define TIMER_SIG 40 /* some RT signal */
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions
new file mode 100644
index 0000000000..3b111ddb51
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions
@@ -0,0 +1,7 @@
+librt {
+  GLIBC_2.3.3 {
+    # Changed timer_t.
+    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_settime;
+  }
+}
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_create.c b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_create.c
new file mode 100644
index 0000000000..172223af3f
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_create.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_create.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_delete.c b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_delete.c
new file mode 100644
index 0000000000..537516e0aa
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_delete.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_delete.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_getoverr.c b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_getoverr.c
new file mode 100644
index 0000000000..3f21a73c98
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_getoverr.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_getoverr.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_gettime.c b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_gettime.c
new file mode 100644
index 0000000000..a50143adc5
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_gettime.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_gettime.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_settime.c b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_settime.c
new file mode 100644
index 0000000000..37baeffacc
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/timer_settime.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_settime.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_kill.c b/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
index a35a3f025b..8da195aa0a 100644
--- a/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
+++ b/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
@@ -37,7 +37,7 @@ __pthread_kill (threadid, signo)
     return ESRCH;
 
   /* Disallow sending the signal we use for cancellation.  */
-  if (signo == SIGCANCEL)
+  if (signo == SIGCANCEL || signo == SIGTIMER)
     return EINVAL;
 
   /* We have a special syscall to do the work.  */
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/Versions b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/Versions
new file mode 100644
index 0000000000..3b111ddb51
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/Versions
@@ -0,0 +1,7 @@
+librt {
+  GLIBC_2.3.3 {
+    # Changed timer_t.
+    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_settime;
+  }
+}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c
new file mode 100644
index 0000000000..172223af3f
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_create.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c
new file mode 100644
index 0000000000..537516e0aa
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_delete.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_getoverr.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_getoverr.c
new file mode 100644
index 0000000000..3f21a73c98
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_getoverr.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_getoverr.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_gettime.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_gettime.c
new file mode 100644
index 0000000000..a50143adc5
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_gettime.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_gettime.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c
new file mode 100644
index 0000000000..37baeffacc
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c
@@ -0,0 +1 @@
+#include "../x86_64/timer_settime.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_create.c b/nptl/sysdeps/unix/sysv/linux/timer_create.c
new file mode 100644
index 0000000000..637d925168
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/timer_create.c
@@ -0,0 +1,235 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <sysdep.h>
+#include <kernel-features.h>
+#include <internaltypes.h>
+#include "kernel-posix-timers.h"
+
+
+#ifdef __NR_timer_create
+# ifndef __ASSUME_POSIX_TIMERS
+#  define timer_create static compat_timer_create
+#  include <nptl/sysdeps/pthread/timer_create.c>
+#  undef timer_create
+
+/* Nonzero if the system calls are not available.  */
+int __no_posix_timers attribute_hidden;
+# endif
+
+# ifdef timer_create_alias
+#  define timer_create timer_create_alias
+# endif
+
+
+int
+timer_create (clock_id, evp, timerid)
+     clockid_t clock_id;
+     struct sigevent *evp;
+     timer_t *timerid;
+{
+# undef timer_create
+# ifndef __ASSUME_POSIX_TIMERS
+  if  (__no_posix_timers >= 0)
+# endif
+    {
+      /* If the user wants notification via a thread we need to handle
+	 this special.  */
+      if (evp == NULL
+	  || __builtin_expect (evp->sigev_notify != SIGEV_THREAD, 1))
+	{
+	  kernel_timer_t ktimerid;
+	  int retval = INLINE_SYSCALL (timer_create, 3, clock_id, evp,
+				       &ktimerid);
+
+# ifndef __ASSUME_POSIX_TIMERS
+	  if (retval != -1 || errno != ENOSYS)
+# endif
+	    {
+# ifndef __ASSUME_POSIX_TIMERS
+	      __no_posix_timers = 1;
+#endif
+
+	      if (retval != -1)
+		{
+		  struct timer *newp;
+
+		  /* We avoid allocating too much memory by basically
+		     using struct timer as a derived class with the
+		     first two elements being in the superclass.  We only
+		     need these two elements here.  */
+		  newp = (struct timer *) malloc (offsetof (struct timer,
+							    thrfunc));
+		  if (newp != NULL)
+		    {
+		      newp->sigev_notify = (evp != NULL
+					    ? evp->sigev_notify
+					    : SIGEV_SIGNAL);
+		      newp->ktimerid = ktimerid;
+
+		      *timerid = (timer_t) newp;
+		    }
+		  else
+		    {
+		      /* No memory.  Free the kernel timer.  */
+		      INTERNAL_SYSCALL_DECL (err);
+		      (void) INTERNAL_SYSCALL (timer_delete, err, 1, ktimerid);
+
+		      retval = -1;
+		    }
+		}
+
+	      return retval;
+	    }
+	}
+      else
+	{
+#ifndef __ASSUME_POSIX_TIMERS
+	  /* Make sure we have the necessary kernel support.  */
+	  if (__no_posix_timers == 0)
+	    {
+	      INTERNAL_SYSCALL_DECL (err);
+	      struct timespec ts;
+	      int res = INTERNAL_SYSCALL (clock_getres, err, 1, &ts);
+	      __no_posix_timers = (INTERNAL_SYSCALL_ERROR_P (res, err)
+				   ? -1 : 1);
+	    }
+
+	  if (__no_posix_timers > 0)
+#endif
+	    {
+		  sigset_t ss;
+		  sigemptyset (&ss);
+		  sigaddset (&ss, TIMER_SIG);
+		  pthread_sigmask (SIG_BLOCK, &ss, NULL);
+	      struct timer *newp;
+
+	      newp = (struct timer *) malloc (sizeof (struct timer));
+	      if (newp == NULL)
+		return -1;
+
+	      /* Copy the thread parameters the user provided.  */
+	      newp->sival = evp->sigev_value;
+	      newp->thrfunc = evp->sigev_notify_function;
+
+	      /* We cannot simply copy the thread attributes since the
+		 implementation might keep internal information for
+		 each instance.  */
+	      (void) pthread_attr_init (&newp->attr);
+	      if (evp->sigev_notify_attributes != NULL)
+		{
+		  struct pthread_attr *nattr;
+		  struct pthread_attr *oattr;
+
+		  nattr = (struct pthread_attr *) &newp->attr;
+		  oattr = (struct pthread_attr *) evp->sigev_notify_attributes;
+
+		  nattr->schedparam = oattr->schedparam;
+		  nattr->schedpolicy = oattr->schedpolicy;
+		  nattr->flags = oattr->flags;
+		  nattr->guardsize = oattr->guardsize;
+		  nattr->stackaddr = oattr->stackaddr;
+		  nattr->stacksize = oattr->stacksize;
+		}
+
+	      /* In any case set the detach flag.  */
+	      (void) pthread_attr_setdetachstate (&newp->attr,
+						  PTHREAD_CREATE_DETACHED);
+
+	      /* Set up the barrier for sychronization.  */
+	      (void) pthread_barrier_init (&newp->bar, NULL, 2);
+
+	      /* The helper thread needs only very little resources
+		 and should go away automatically when canceled.  */
+	      pthread_attr_t attr;
+	      (void) pthread_attr_init (&attr);
+	      (void) pthread_attr_setdetachstate (&attr,
+						  PTHREAD_CREATE_DETACHED);
+	      (void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
+
+	      /* Create the helper thread for this timer.  */
+	      int res = pthread_create (&newp->th, &attr,
+					__timer_helper_thread, newp);
+	      if (res != 0)
+		goto err_out;
+
+	      /* No need for the attribute anymore.  */
+	      (void) pthread_attr_destroy (&attr);
+
+	      /* Create the event structure for the kernel timer.  */
+	      struct sigevent sev;
+	      sev.sigev_value.sival_ptr = newp;
+	      sev.sigev_signo = TIMER_SIG;
+	      sev.sigev_notify = SIGEV_SIGNAL | SIGEV_THREAD_ID;
+	      /* This is the thread ID of the helper thread.  */
+	      sev._sigev_un._pad[0] = ((struct pthread *) newp->th)->tid;
+
+	      /* Wait until the helper thread is set up.  */
+	      (void) pthread_barrier_wait (&newp->bar);
+
+	      /* No need for the barrier anymore.  */
+	      (void) pthread_barrier_destroy (&newp->bar);
+
+	      /* Create the timer.  */
+	      INTERNAL_SYSCALL_DECL (err);
+	      res = INTERNAL_SYSCALL (timer_create, err, 3, clock_id, &sev,
+				      &newp->ktimerid);
+	      if (! INTERNAL_SYSCALL_ERROR_P (res, err))
+		{
+		  *timerid = (timer_t) newp;
+		  return 0;
+		}
+
+	      /* Something went wrong.  Kill the thread.  */
+	      pthread_cancel (newp->th);
+	      /* Free the resources.  */
+	      res = INTERNAL_SYSCALL_ERRNO (res, err);
+	    err_out:
+	      free (newp);
+	      __set_errno (res);
+	      return -1;
+	    }
+	}
+
+# ifndef __ASSUME_POSIX_TIMERS
+      /* When we come here the syscall does not exist.  Make sure we
+	 do not try to use it again.  */
+      __no_posix_timers = -1;
+# endif
+    }
+
+# ifndef __ASSUME_POSIX_TIMERS
+  /* Compatibility code.  */
+  return compat_timer_create (clock_id, evp, timerid);
+# endif
+}
+#else
+# ifdef timer_create_alias
+#  define timer_create timer_create_alias
+# endif
+/* The new system calls are not available.  Use the userlevel
+   implementation.  */
+# include <nptl/sysdeps/pthread/timer_create.c>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_delete.c b/nptl/sysdeps/unix/sysv/linux/timer_delete.c
new file mode 100644
index 0000000000..cf63364253
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/timer_delete.c
@@ -0,0 +1,94 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sysdep.h>
+#include <kernel-features.h>
+#include "kernel-posix-timers.h"
+
+
+#ifdef __NR_timer_delete
+# ifndef __ASSUME_POSIX_TIMERS
+#  define timer_delete static compat_timer_delete
+#  include <nptl/sysdeps/pthread/timer_delete.c>
+#  undef timer_delete
+# endif
+
+# ifdef timer_delete_alias
+#  define timer_delete timer_delete_alias
+# endif
+
+
+int
+timer_delete (timerid)
+     timer_t timerid;
+{
+# undef timer_delete
+# ifndef __ASSUME_POSIX_TIMERS
+  if (__no_posix_timers >= 0)
+# endif
+    {
+      struct timer *kt = (struct timer *) timerid;
+
+      /* Delete the kernel timer object.  */
+      int res = INLINE_SYSCALL (timer_delete, 1, kt->ktimerid);
+
+      if (res == 0)
+	{
+# ifndef __ASSUME_POSIX_TIMERS
+	  /* We know the syscall support is available.  */
+	  __no_posix_timers = 1;
+# endif
+
+	  /* We have to get rid of the helper thread if we created one.  */
+	  if (kt->sigev_notify == SIGEV_THREAD)
+	    (void) pthread_cancel (kt->th);
+
+	  /* Free the memory.  */
+	  (void) free (kt);
+
+	  return 0;
+	}
+
+      /* The kernel timer is not known or something else bad happened.
+	 Return the error.  */
+# ifndef __ASSUME_POSIX_TIMERS
+      if (errno != ENOSYS)
+# endif
+	return -1;
+
+# ifndef __ASSUME_POSIX_TIMERS
+      __no_posix_timers = -1;
+# endif
+    }
+
+# ifndef __ASSUME_POSIX_TIMERS
+  return compat_timer_delete (timerid);
+# endif
+}
+#else
+# ifdef timer_delete_alias
+#  define timer_delete timer_delete_alias
+# endif
+/* The new system calls are not available.  Use the userlevel
+   implementation.  */
+# include <nptl/sysdeps/pthread/timer_delete.c>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c b/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c
new file mode 100644
index 0000000000..40b485f560
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c
@@ -0,0 +1,80 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <time.h>
+#include <sysdep.h>
+#include <kernel-features.h>
+#include "kernel-posix-timers.h"
+
+
+#ifdef __NR_timer_getoverrun
+# ifndef __ASSUME_POSIX_TIMERS
+#  define timer_getoverrun static compat_timer_getoverrun
+#  include <nptl/sysdeps/pthread/timer_getoverrun.c>
+#  undef timer_getoverrun
+# endif
+
+# ifdef timer_getoverrun_alias
+#  define timer_getoverrun timer_getoverrun_alias
+# endif
+
+
+int
+timer_getoverrun (timerid)
+     timer_t timerid;
+{
+# undef timer_getoverrun
+# ifndef __ASSUME_POSIX_TIMERS
+  if (__no_posix_timers == 0)
+# endif
+    {
+      struct timer *kt = (struct timer *) timerid;
+
+      /* Get the information from the kernel.  */
+      int res = INLINE_SYSCALL (timer_getoverrun, 1, kt->ktimerid);
+
+# ifndef __ASSUME_POSIX_TIMERS
+      if (res != -1 || errno != ENOSYS)
+	{
+	  /* We know the syscall support is available.  */
+	  __no_posix_timers = 1;
+# endif
+	  return res;
+# ifndef __ASSUME_POSIX_TIMERS
+	}
+# endif
+
+# ifndef __ASSUME_POSIX_TIMERS
+      __no_posix_timers = -1;
+# endif
+    }
+
+# ifndef __ASSUME_POSIX_TIMERS
+  return compat_timer_getoverrun (timerid);
+# endif
+}
+#else
+# ifdef timer_getoverrun_alias
+#  define timer_getoverrun timer_getoverrun_alias
+# endif
+/* The new system calls are not available.  Use the userlevel
+   implementation.  */
+# include <nptl/sysdeps/pthread/timer_getoverr.c>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_gettime.c b/nptl/sysdeps/unix/sysv/linux/timer_gettime.c
new file mode 100644
index 0000000000..6da15718ed
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/timer_gettime.c
@@ -0,0 +1,82 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sysdep.h>
+#include <kernel-features.h>
+#include "kernel-posix-timers.h"
+
+
+#ifdef __NR_timer_gettime
+# ifndef __ASSUME_POSIX_TIMERS
+#  define timer_gettime static compat_timer_gettime
+#  include <nptl/sysdeps/pthread/timer_gettime.c>
+#  undef timer_gettime
+# endif
+
+# ifdef timer_gettime_alias
+#  define timer_gettime timer_gettime_alias
+# endif
+
+
+int
+timer_gettime (timerid, value)
+     timer_t timerid;
+     struct itimerspec *value;
+{
+# undef timer_gettime
+# ifndef __ASSUME_POSIX_TIMERS
+  if (__no_posix_timers == 0)
+# endif
+    {
+      struct timer *kt = (struct timer *) timerid;
+
+      /* Delete the kernel timer object.  */
+      int res = INLINE_SYSCALL (timer_gettime, 2, kt->ktimerid, value);
+
+# ifndef __ASSUME_POSIX_TIMERS
+      if (res != -1 || errno != ENOSYS)
+	{
+	  /* We know the syscall support is available.  */
+	  __no_posix_timers = 1;
+# endif
+	  return res;
+# ifndef __ASSUME_POSIX_TIMERS
+	}
+# endif
+
+# ifndef __ASSUME_POSIX_TIMERS
+      __no_posix_timers = -1;
+# endif
+    }
+
+# ifndef __ASSUME_POSIX_TIMERS
+  return compat_timer_gettime (timerid, value);
+# endif
+}
+#else
+# ifdef timer_gettime_alias
+#  define timer_gettime timer_gettime_alias
+# endif
+/* The new system calls are not available.  Use the userlevel
+   implementation.  */
+# include <nptl/sysdeps/pthread/timer_gettime.c>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_routines.c b/nptl/sysdeps/unix/sysv/linux/timer_routines.c
new file mode 100644
index 0000000000..3f69aa64fd
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/timer_routines.c
@@ -0,0 +1,81 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <setjmp.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <sysdep.h>
+#include <kernel-features.h>
+#include "kernel-posix-timers.h"
+
+
+#ifdef __NR_timer_create
+/* Helper thread to call the user-provided function.  */
+static void *
+timer_sigev_thread (void *arg)
+{
+  struct timer *tk = (struct timer *) arg;
+
+  /* Call the user-provided function.  */
+  tk->thrfunc (tk->sival);
+
+  return NULL;
+}
+
+
+/* Helper function to support starting threads for SIGEV_THREAD.  */
+void *
+attribute_hidden
+__timer_helper_thread (void *arg)
+{
+  /* Block all signals.  */
+  sigset_t ss;
+
+  sigfillset (&ss);
+  (void) pthread_sigmask (SIG_BLOCK, &ss, NULL);
+
+  struct timer *tk = (struct timer *) arg;
+
+  /* Synchronize with the parent.  */
+  (void) pthread_barrier_wait (&tk->bar);
+
+  /* We will only wait for the signal the kernel will send.  */
+  sigemptyset (&ss);
+  sigaddset (&ss, TIMER_SIG);
+
+  /* Endless loop of waiting for signals.  The loop is only ended when
+     the thread is canceled.  */
+  while (1)
+    {
+      siginfo_t si;
+
+      if (sigwaitinfo (&ss, &si) > 0 && si.si_timerid == tk->ktimerid)
+	{
+	  /* That the signal we are waiting for.  */
+	  pthread_t th;
+	  (void) pthread_create (&th, &tk->attr, timer_sigev_thread, arg);
+	}
+    }
+}
+
+#endif
+
+#ifndef __ASSUME_POSIX_TIMERS
+# include <nptl/sysdeps/pthread/timer_routines.c>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_settime.c b/nptl/sysdeps/unix/sysv/linux/timer_settime.c
new file mode 100644
index 0000000000..7fc837cb5d
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/timer_settime.c
@@ -0,0 +1,85 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sysdep.h>
+#include <kernel-features.h>
+#include "kernel-posix-timers.h"
+
+
+#ifdef __NR_timer_settime
+# ifndef __ASSUME_POSIX_TIMERS
+#  define timer_settime static compat_timer_settime
+#  include <nptl/sysdeps/pthread/timer_settime.c>
+#  undef timer_settime
+# endif
+
+# ifdef timer_settime_alias
+#  define timer_settime timer_settime_alias
+# endif
+
+
+int
+timer_settime (timerid, flags, value, ovalue)
+     timer_t timerid;
+     int flags;
+     const struct itimerspec *value;
+     struct itimerspec *ovalue;
+{
+# undef timer_settime
+# ifndef __ASSUME_POSIX_TIMERS
+  if (__no_posix_timers == 0)
+# endif
+    {
+      struct timer *kt = (struct timer *) timerid;
+
+      /* Delete the kernel timer object.  */
+      int res = INLINE_SYSCALL (timer_settime, 4, kt->ktimerid, flags,
+				value, ovalue);
+
+# ifndef __ASSUME_POSIX_TIMERS
+      if (res != -1 || errno != ENOSYS)
+	{
+	  /* We know the syscall support is available.  */
+	  __no_posix_timers = 1;
+# endif
+	  return res;
+# ifndef __ASSUME_POSIX_TIMERS
+	}
+# endif
+
+# ifndef __ASSUME_POSIX_TIMERS
+      __no_posix_timers = 1;
+# endif
+    }
+
+# ifndef __ASSUME_POSIX_TIMERS
+  return compat_timer_settime (timerid, flags, value, ovalue);
+# endif
+}
+#else
+# ifdef timer_settime_alias
+#  define timer_settime timer_settime_alias
+# endif
+/* The new system calls are not available.  Use the userlevel
+   implementation.  */
+# include <nptl/sysdeps/pthread/timer_settime.c>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/Versions b/nptl/sysdeps/unix/sysv/linux/x86_64/Versions
new file mode 100644
index 0000000000..3b111ddb51
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/Versions
@@ -0,0 +1,7 @@
+librt {
+  GLIBC_2.3.3 {
+    # Changed timer_t.
+    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_settime;
+  }
+}
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/compat-timer.h b/nptl/sysdeps/unix/sysv/linux/x86_64/compat-timer.h
new file mode 100644
index 0000000000..02485daa50
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/compat-timer.h
@@ -0,0 +1,46 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <signal.h>
+#include <time.h>
+#include <sys/types.h>
+
+#define OLD_TIMER_MAX	256
+
+extern timer_t __compat_timer_list[OLD_TIMER_MAX] attribute_hidden;
+
+
+extern int __timer_create_new (clockid_t clock_id, struct sigevent *evp,
+			       timer_t *timerid);
+extern int __timer_delete_new (timer_t timerid);
+extern int __timer_getoverrun_new (timer_t timerid);
+extern int __timer_gettime_new (timer_t timerid, struct itimerspec *value);
+extern int __timer_settime_new (timer_t timerid, int flags,
+				const struct itimerspec *value,
+				struct itimerspec *ovalue);
+
+
+extern int __timer_create_old (clockid_t clock_id, struct sigevent *evp,
+			       int *timerid);
+extern int __timer_delete_old (int timerid);
+extern int __timer_getoverrun_old (int timerid);
+extern int __timer_gettime_old (int timerid, struct itimerspec *value);
+extern int __timer_settime_old (int timerid, int flags,
+				const struct itimerspec *value,
+				struct itimerspec *ovalue);
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/timer_create.c b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_create.c
new file mode 100644
index 0000000000..1849f72a48
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_create.c
@@ -0,0 +1,66 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <shlib-compat.h>
+#include "compat-timer.h"
+#include <atomic.h>
+
+
+#define timer_create_alias __timer_create_new
+#include "../timer_create.c"
+
+#undef timer_create
+versioned_symbol (librt, __timer_create_new, timer_create, GLIBC_2_3_3);
+
+
+#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
+timer_t __compat_timer_list[OLD_TIMER_MAX] attribute_hidden;
+
+
+int
+__timer_create_old (clockid_t clock_id, struct sigevent *evp, int *timerid)
+{
+  timer_t newp;
+
+  int res = __timer_create_new (clock_id, evp, &newp);
+  if (res == 0)
+    {
+      int i;
+      for (i = 0; i < OLD_TIMER_MAX; ++i)
+	if (__compat_timer_list[i] == NULL
+	    && ! atomic_compare_and_exchange_bool_acq (&__compat_timer_list[i],
+						       newp, NULL))
+	  {
+	    *timerid = i;
+	    break;
+	  }
+
+      if (__builtin_expect (i == OLD_TIMER_MAX, 0))
+	{
+	  /* No free slot.  */
+	  (void) __timer_delete_new (newp);
+	  __set_errno (EINVAL);
+	  res = -1;
+	}
+    }
+
+  return res;
+}
+compat_symbol (librt, __timer_create_old, timer_create, GLIBC_2_2);
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/timer_delete.c b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_delete.c
new file mode 100644
index 0000000000..6e0d9d0334
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_delete.c
@@ -0,0 +1,45 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <shlib-compat.h>
+#include "compat-timer.h"
+
+
+#define timer_delete_alias __timer_delete_new
+#include "../timer_delete.c"
+
+#undef timer_delete
+versioned_symbol (librt, __timer_delete_new, timer_delete, GLIBC_2_3_3);
+
+
+#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
+int
+__timer_delete_old (int timerid)
+{
+  int res = __timer_delete_new (__compat_timer_list[timerid]);
+
+  if (res == 0)
+    /* Successful timer deletion, now free the index.  We only need to
+       store a word and that better be atomic.  */
+    __compat_timer_list[timerid] = NULL;
+
+  return res;
+}
+compat_symbol (librt, __timer_delete_old, timer_delete, GLIBC_2_2);
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/timer_getoverr.c b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_getoverr.c
new file mode 100644
index 0000000000..d75636c99a
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_getoverr.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <shlib-compat.h>
+#include "compat-timer.h"
+
+
+#define timer_getoverrun_alias __timer_getoverrun_new
+#include "../timer_getoverr.c"
+
+#undef timer_getoverrun
+versioned_symbol (librt, __timer_getoverrun_new, timer_getoverrun,
+		  GLIBC_2_3_3);
+
+
+#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
+int
+__timer_getoverrun_old (int timerid)
+{
+  return __timer_getoverrun_new (__compat_timer_list[timerid]);
+}
+compat_symbol (librt, __timer_getoverrun_old, timer_getoverrun, GLIBC_2_2);
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/timer_gettime.c b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_gettime.c
new file mode 100644
index 0000000000..1f1253af2f
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_gettime.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <shlib-compat.h>
+#include "compat-timer.h"
+
+
+#define timer_gettime_alias __timer_gettime_new
+#include "../timer_gettime.c"
+
+#undef timer_gettime
+versioned_symbol (librt, __timer_gettime_new, timer_gettime, GLIBC_2_3_3);
+
+
+#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
+int
+__timer_gettime_old (int timerid, struct itimerspec *value)
+{
+  return __timer_gettime_new (__compat_timer_list[timerid], value);
+}
+compat_symbol (librt, __timer_gettime_old, timer_gettime, GLIBC_2_2);
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/timer_settime.c b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_settime.c
new file mode 100644
index 0000000000..4c945ec514
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/timer_settime.c
@@ -0,0 +1,40 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <shlib-compat.h>
+#include "compat-timer.h"
+
+
+#define timer_settime_alias __timer_settime_new
+#include "../timer_settime.c"
+
+#undef timer_settime
+versioned_symbol (librt, __timer_settime_new, timer_settime, GLIBC_2_3_3);
+
+
+#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
+int
+__timer_settime_old (int timerid, int flags, const struct itimerspec *value,
+		     struct itimerspec *ovalue)
+{
+  return __timer_settime_new (__compat_timer_list[timerid], flags,
+			      value, ovalue);
+}
+compat_symbol (librt, __timer_settime_old, timer_settime, GLIBC_2_2);
+#endif