Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

80 files changed, 9027 insertions, 0 deletions

diff --git a/REORG.TODO/rt/Depend b/REORG.TODO/rt/Depend
new file mode 100644
index 0000000000..6c1aa44e6e
--- /dev/null
+++ b/REORG.TODO/rt/Depend
@@ -0,0 +1 @@
+nptl
diff --git a/REORG.TODO/rt/Makefile b/REORG.TODO/rt/Makefile
new file mode 100644
index 0000000000..9740dc2ad8
--- /dev/null
+++ b/REORG.TODO/rt/Makefile
@@ -0,0 +1,79 @@
+# Copyright (C) 1997-2017 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
+# <http://www.gnu.org/licenses/>.
+
+#
+#	Sub-makefile for real-time portion of the library.
+#
+subdir	:= rt
+
+include ../Makeconfig
+
+headers	:= aio.h mqueue.h bits/mqueue.h bits/mqueue2.h
+
+aio-routines   := aio_cancel aio_error aio_fsync aio_misc aio_read	\
+		  aio_read64 aio_return aio_suspend aio_write		\
+		  aio_write64 lio_listio lio_listio64 aio_sigqueue	\
+		  aio_notify
+clock-routines := get_clockfreq clock_getcpuclockid			\
+		  clock_getres clock_gettime clock_settime		\
+		  clock_nanosleep
+timer-routines := timer_create timer_delete timer_getoverr		\
+		  timer_gettime timer_settime
+shm-routines   := shm_open shm_unlink
+mq-routines    := mq_open mq_close mq_unlink mq_getattr mq_setattr	\
+		  mq_notify mq_send mq_receive mq_timedsend		\
+		  mq_timedreceive
+
+routines = $(clock-routines)
+
+librt-routines = $(aio-routines) \
+		 $(timer-routines) \
+		 $(shm-routines) $(mq-routines) \
+		 clock-compat
+
+tests := tst-shm tst-clock tst-clock_nanosleep tst-timer tst-timer2 \
+	 tst-aio tst-aio64 tst-aio2 tst-aio3 tst-aio4 tst-aio5 tst-aio6 \
+	 tst-aio7 tst-aio8 tst-aio9 tst-aio10 \
+	 tst-mqueue1 tst-mqueue2 tst-mqueue3 tst-mqueue4 \
+	 tst-mqueue5 tst-mqueue6 tst-mqueue7 tst-mqueue8 tst-mqueue9 \
+	 tst-timer3 tst-timer4 tst-timer5 \
+	 tst-cpuclock1 tst-cpuclock2 \
+	 tst-cputimer1 tst-cputimer2 tst-cputimer3 \
+	 tst-clock2 tst-shm-cancel
+
+extra-libs := librt
+extra-libs-others := $(extra-libs)
+
+include ../Rules
+
+CFLAGS-aio_suspend.c = -fexceptions
+CFLAGS-mq_timedreceive.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-mq_timedsend.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-clock_nanosleep.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-librt-cancellation.c = -fasynchronous-unwind-tables
+
+LDFLAGS-rt.so = -Wl,--enable-new-dtags,-z,nodelete
+
+$(objpfx)librt.so: $(shared-thread-library)
+
+ifeq (yes,$(build-shared))
+$(addprefix $(objpfx),$(tests)): $(objpfx)librt.so $(shared-thread-library)
+else
+$(addprefix $(objpfx),$(tests)): $(objpfx)librt.a $(static-thread-library)
+endif
+
+tst-mqueue7-ARGS = -- $(host-test-program-cmd)
diff --git a/REORG.TODO/rt/Versions b/REORG.TODO/rt/Versions
new file mode 100644
index 0000000000..91e3fd2a20
--- /dev/null
+++ b/REORG.TODO/rt/Versions
@@ -0,0 +1,40 @@
+libc {
+  GLIBC_2.17 {
+    # c*
+    clock_getres; clock_gettime; clock_settime; clock_getcpuclockid;
+    clock_nanosleep;
+  }
+  GLIBC_PRIVATE {
+    __clock_getres; __clock_gettime; __clock_settime; __clock_getcpuclockid;
+    __clock_nanosleep;
+  }
+}
+
+librt {
+  GLIBC_2.1 {
+    # AIO functions.
+    aio_cancel; aio_cancel64; aio_error; aio_error64; aio_fsync; aio_fsync64;
+    aio_init; aio_read; aio_read64; aio_return; aio_return64; aio_suspend;
+    aio_suspend64; aio_write; aio_write64; lio_listio; lio_listio64;
+  }
+  GLIBC_2.2 {
+    # These have moved to libc and are still here only for compatibility.
+    clock_getres; clock_gettime; clock_settime; clock_getcpuclockid;
+    clock_nanosleep;
+
+    # s*
+    shm_open; shm_unlink;
+
+    # t*
+    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_settime;
+  }
+  GLIBC_2.3.4 {
+    # m*
+    mq_open; mq_close; mq_unlink; mq_getattr; mq_setattr;
+    mq_notify; mq_send; mq_receive; mq_timedsend; mq_timedreceive;
+  }
+  GLIBC_2.7 {
+   __mq_open_2;
+  }
+}
diff --git a/REORG.TODO/rt/aio.h b/REORG.TODO/rt/aio.h
new file mode 100644
index 0000000000..d72ad5d97d
--- /dev/null
+++ b/REORG.TODO/rt/aio.h
@@ -0,0 +1,245 @@
+/* Copyright (C) 1996-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO/IEC 9945-1:1996 6.7: Asynchronous Input and Output
+ */
+
+#ifndef _AIO_H
+#define _AIO_H	1
+
+#include <features.h>
+#include <sys/types.h>
+#include <bits/types/sigevent_t.h>
+#include <bits/sigevent-consts.h>
+#include <bits/types/struct_timespec.h>
+
+__BEGIN_DECLS
+
+/* Asynchronous I/O control block.  */
+struct aiocb
+{
+  int aio_fildes;		/* File desriptor.  */
+  int aio_lio_opcode;		/* Operation to be performed.  */
+  int aio_reqprio;		/* Request priority offset.  */
+  volatile void *aio_buf;	/* Location of buffer.  */
+  size_t aio_nbytes;		/* Length of transfer.  */
+  struct sigevent aio_sigevent;	/* Signal number and value.  */
+
+  /* Internal members.  */
+  struct aiocb *__next_prio;
+  int __abs_prio;
+  int __policy;
+  int __error_code;
+  __ssize_t __return_value;
+
+#ifndef __USE_FILE_OFFSET64
+  __off_t aio_offset;		/* File offset.  */
+  char __pad[sizeof (__off64_t) - sizeof (__off_t)];
+#else
+  __off64_t aio_offset;		/* File offset.  */
+#endif
+  char __glibc_reserved[32];
+};
+
+/* The same for the 64bit offsets.  Please note that the members aio_fildes
+   to __return_value have to be the same in aiocb and aiocb64.  */
+#ifdef __USE_LARGEFILE64
+struct aiocb64
+{
+  int aio_fildes;		/* File desriptor.  */
+  int aio_lio_opcode;		/* Operation to be performed.  */
+  int aio_reqprio;		/* Request priority offset.  */
+  volatile void *aio_buf;	/* Location of buffer.  */
+  size_t aio_nbytes;		/* Length of transfer.  */
+  struct sigevent aio_sigevent;	/* Signal number and value.  */
+
+  /* Internal members.  */
+  struct aiocb *__next_prio;
+  int __abs_prio;
+  int __policy;
+  int __error_code;
+  __ssize_t __return_value;
+
+  __off64_t aio_offset;		/* File offset.  */
+  char __glibc_reserved[32];
+};
+#endif
+
+
+#ifdef __USE_GNU
+/* To customize the implementation one can use the following struct.
+   This implementation follows the one in Irix.  */
+struct aioinit
+  {
+    int aio_threads;		/* Maximal number of threads.  */
+    int aio_num;		/* Number of expected simultanious requests. */
+    int aio_locks;		/* Not used.  */
+    int aio_usedba;		/* Not used.  */
+    int aio_debug;		/* Not used.  */
+    int aio_numusers;		/* Not used.  */
+    int aio_idle_time;		/* Number of seconds before idle thread
+				   terminates.  */
+    int aio_reserved;
+  };
+#endif
+
+
+/* Return values of cancelation function.  */
+enum
+{
+  AIO_CANCELED,
+#define AIO_CANCELED AIO_CANCELED
+  AIO_NOTCANCELED,
+#define AIO_NOTCANCELED AIO_NOTCANCELED
+  AIO_ALLDONE
+#define AIO_ALLDONE AIO_ALLDONE
+};
+
+
+/* Operation codes for `aio_lio_opcode'.  */
+enum
+{
+  LIO_READ,
+#define LIO_READ LIO_READ
+  LIO_WRITE,
+#define LIO_WRITE LIO_WRITE
+  LIO_NOP
+#define LIO_NOP LIO_NOP
+};
+
+
+/* Synchronization options for `lio_listio' function.  */
+enum
+{
+  LIO_WAIT,
+#define LIO_WAIT LIO_WAIT
+  LIO_NOWAIT
+#define LIO_NOWAIT LIO_NOWAIT
+};
+
+
+/* Allow user to specify optimization.  */
+#ifdef __USE_GNU
+extern void aio_init (const struct aioinit *__init) __THROW __nonnull ((1));
+#endif
+
+
+#ifndef __USE_FILE_OFFSET64
+/* Enqueue read request for given number of bytes and the given priority.  */
+extern int aio_read (struct aiocb *__aiocbp) __THROW __nonnull ((1));
+/* Enqueue write request for given number of bytes and the given priority.  */
+extern int aio_write (struct aiocb *__aiocbp) __THROW __nonnull ((1));
+
+/* Initiate list of I/O requests.  */
+extern int lio_listio (int __mode,
+		       struct aiocb *const __list[__restrict_arr],
+		       int __nent, struct sigevent *__restrict __sig)
+  __THROW __nonnull ((2));
+
+/* Retrieve error status associated with AIOCBP.  */
+extern int aio_error (const struct aiocb *__aiocbp) __THROW __nonnull ((1));
+/* Return status associated with AIOCBP.  */
+extern __ssize_t aio_return (struct aiocb *__aiocbp) __THROW __nonnull ((1));
+
+/* Try to cancel asynchronous I/O requests outstanding against file
+   descriptor FILDES.  */
+extern int aio_cancel (int __fildes, struct aiocb *__aiocbp) __THROW;
+
+/* Suspend calling thread until at least one of the asynchronous I/O
+   operations referenced by LIST has completed.
+
+   This function is a cancellation point and therefore not marked with
+   __THROW.  */
+extern int aio_suspend (const struct aiocb *const __list[], int __nent,
+			const struct timespec *__restrict __timeout)
+  __nonnull ((1));
+
+/* Force all operations associated with file desriptor described by
+   `aio_fildes' member of AIOCBP.  */
+extern int aio_fsync (int __operation, struct aiocb *__aiocbp)
+  __THROW __nonnull ((2));
+#else
+# ifdef __REDIRECT_NTH
+extern int __REDIRECT_NTH (aio_read, (struct aiocb *__aiocbp), aio_read64)
+  __nonnull ((1));
+extern int __REDIRECT_NTH (aio_write, (struct aiocb *__aiocbp), aio_write64)
+  __nonnull ((1));
+
+extern int __REDIRECT_NTH (lio_listio,
+			   (int __mode,
+			    struct aiocb *const __list[__restrict_arr],
+			    int __nent, struct sigevent *__restrict __sig),
+			   lio_listio64) __nonnull ((2));
+
+extern int __REDIRECT_NTH (aio_error, (const struct aiocb *__aiocbp),
+			   aio_error64) __nonnull ((1));
+extern __ssize_t __REDIRECT_NTH (aio_return, (struct aiocb *__aiocbp),
+				 aio_return64) __nonnull ((1));
+
+extern int __REDIRECT_NTH (aio_cancel,
+			   (int __fildes, struct aiocb *__aiocbp),
+			   aio_cancel64);
+
+extern int __REDIRECT_NTH (aio_suspend,
+			   (const struct aiocb *const __list[], int __nent,
+			    const struct timespec *__restrict __timeout),
+			   aio_suspend64) __nonnull ((1));
+
+extern int __REDIRECT_NTH (aio_fsync,
+			   (int __operation, struct aiocb *__aiocbp),
+			   aio_fsync64) __nonnull ((2));
+
+# else
+#  define aio_read aio_read64
+#  define aio_write aio_write64
+#  define lio_listio lio_listio64
+#  define aio_error aio_error64
+#  define aio_return aio_return64
+#  define aio_cancel aio_cancel64
+#  define aio_suspend aio_suspend64
+#  define aio_fsync aio_fsync64
+# endif
+#endif
+
+#ifdef __USE_LARGEFILE64
+extern int aio_read64 (struct aiocb64 *__aiocbp) __THROW __nonnull ((1));
+extern int aio_write64 (struct aiocb64 *__aiocbp) __THROW __nonnull ((1));
+
+extern int lio_listio64 (int __mode,
+			 struct aiocb64 *const __list[__restrict_arr],
+			 int __nent, struct sigevent *__restrict __sig)
+  __THROW __nonnull ((2));
+
+extern int aio_error64 (const struct aiocb64 *__aiocbp)
+  __THROW __nonnull ((1));
+extern __ssize_t aio_return64 (struct aiocb64 *__aiocbp)
+  __THROW __nonnull ((1));
+
+extern int aio_cancel64 (int __fildes, struct aiocb64 *__aiocbp) __THROW;
+
+extern int aio_suspend64 (const struct aiocb64 *const __list[], int __nent,
+			  const struct timespec *__restrict __timeout)
+  __THROW __nonnull ((1));
+
+extern int aio_fsync64 (int __operation, struct aiocb64 *__aiocbp)
+  __THROW __nonnull ((2));
+#endif
+
+__END_DECLS
+
+#endif /* aio.h */
diff --git a/REORG.TODO/rt/aio_cancel.c b/REORG.TODO/rt/aio_cancel.c
new file mode 100644
index 0000000000..c50883e6df
--- /dev/null
+++ b/REORG.TODO/rt/aio_cancel.c
@@ -0,0 +1,42 @@
+/* Cancel requests associated with given file descriptor.  Stub version.
+   Copyright (C) 2001-2017 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
+   <http://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.  */
+#define aio_cancel64 XXX
+#include <aio.h>
+/* And undo the hack.  */
+#undef aio_cancel64
+
+#include <errno.h>
+
+int
+aio_cancel (int fildes, struct aiocb *aiocbp)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+weak_alias (aio_cancel, aio_cancel64)
+
+stub_warning (aio_cancel)
+stub_warning (aio_cancel64)
diff --git a/REORG.TODO/rt/aio_error.c b/REORG.TODO/rt/aio_error.c
new file mode 100644
index 0000000000..3e29cfcc8c
--- /dev/null
+++ b/REORG.TODO/rt/aio_error.c
@@ -0,0 +1,38 @@
+/* Return error status of asynchronous I/O request.
+   Copyright (C) 1997-2017 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
+   <http://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
+
+
+int
+aio_error (const struct aiocb *aiocbp)
+{
+  return aiocbp->__error_code;
+}
+
+weak_alias (aio_error, aio_error64)
diff --git a/REORG.TODO/rt/aio_fsync.c b/REORG.TODO/rt/aio_fsync.c
new file mode 100644
index 0000000000..2eb97ea5e0
--- /dev/null
+++ b/REORG.TODO/rt/aio_fsync.c
@@ -0,0 +1,49 @@
+/* Synchronize I/O in given file descriptor.  Stub version.
+   Copyright (C) 2001-2017 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
+   <http://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>
+
+int
+aio_fsync (int op, struct aiocb *aiocbp)
+{
+  if (op != O_SYNC && op != O_DSYNC)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+weak_alias (aio_fsync, aio_fsync64)
+
+stub_warning (aio_fsync)
+stub_warning (aio_fsync64)
diff --git a/REORG.TODO/rt/aio_misc.c b/REORG.TODO/rt/aio_misc.c
new file mode 100644
index 0000000000..f94b7a9d23
--- /dev/null
+++ b/REORG.TODO/rt/aio_misc.c
@@ -0,0 +1,28 @@
+/* Handle general operations.  Stub version.
+   Copyright (C) 2001-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <aio_misc.h>
+
+/* This file is for internal code needed by the aio_* implementation.  */
+
+void
+__aio_init (const struct aioinit *init)
+{
+}
+weak_alias (__aio_init, aio_init)
diff --git a/REORG.TODO/rt/aio_notify.c b/REORG.TODO/rt/aio_notify.c
new file mode 100644
index 0000000000..52256a6377
--- /dev/null
+++ b/REORG.TODO/rt/aio_notify.c
@@ -0,0 +1,23 @@
+/* Notify initiator of AIO request.  Stub version.
+   Copyright (C) 2001-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <aio_misc.h>
+
+/* This file contains only internal functions used by
+   the particular aio_* implementation code.  */
diff --git a/REORG.TODO/rt/aio_read.c b/REORG.TODO/rt/aio_read.c
new file mode 100644
index 0000000000..a1300d1eca
--- /dev/null
+++ b/REORG.TODO/rt/aio_read.c
@@ -0,0 +1,34 @@
+/* Asynchronous read.  Stub version.
+   Copyright (C) 2001-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <errno.h>
+
+#ifdef BE_AIO64
+#define aiocb		aiocb64
+#define aio_read	aio_read64
+#endif
+
+int
+aio_read (struct aiocb *aiocbp)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (aio_read)
diff --git a/REORG.TODO/rt/aio_read64.c b/REORG.TODO/rt/aio_read64.c
new file mode 100644
index 0000000000..e9994aefcb
--- /dev/null
+++ b/REORG.TODO/rt/aio_read64.c
@@ -0,0 +1,2 @@
+#define BE_AIO64
+#include <aio_read.c>
diff --git a/REORG.TODO/rt/aio_return.c b/REORG.TODO/rt/aio_return.c
new file mode 100644
index 0000000000..c322f25edd
--- /dev/null
+++ b/REORG.TODO/rt/aio_return.c
@@ -0,0 +1,38 @@
+/* Return exit value of asynchronous I/O request.
+   Copyright (C) 1997-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+
+/* We use an UGLY hack to prevent gcc from finding us cheating.  The
+   implementation of aio_return and aio_return64 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_return64 has no prototype.  */
+#define aio_return64 XXX
+#include <aio.h>
+/* And undo the hack.  */
+#undef aio_return64
+
+
+ssize_t
+aio_return (struct aiocb *aiocbp)
+{
+  return aiocbp->__return_value;
+}
+
+weak_alias (aio_return, aio_return64)
diff --git a/REORG.TODO/rt/aio_sigqueue.c b/REORG.TODO/rt/aio_sigqueue.c
new file mode 100644
index 0000000000..fd8a6b2387
--- /dev/null
+++ b/REORG.TODO/rt/aio_sigqueue.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1997-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <errno.h>
+#include <signal.h>
+
+#include <aio_misc.h>
+
+int
+attribute_hidden internal_function
+__aio_sigqueue (int sig, const union sigval val, pid_t caller_pid)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (__aio_sigqueue)
diff --git a/REORG.TODO/rt/aio_suspend.c b/REORG.TODO/rt/aio_suspend.c
new file mode 100644
index 0000000000..8920f9361a
--- /dev/null
+++ b/REORG.TODO/rt/aio_suspend.c
@@ -0,0 +1,44 @@
+/* Suspend until termination of a requests.  Stub version.
+   Copyright (C) 2001-2017 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
+   <http://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 <errno.h>
+#include <sys/time.h>
+
+
+int
+aio_suspend (const struct aiocb *const list[], int nent,
+	     const struct timespec *timeout)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (aio_suspend, aio_suspend64)
+
+stub_warning (aio_suspend)
+stub_warning (aio_suspend64)
diff --git a/REORG.TODO/rt/aio_write.c b/REORG.TODO/rt/aio_write.c
new file mode 100644
index 0000000000..a5b3b829d4
--- /dev/null
+++ b/REORG.TODO/rt/aio_write.c
@@ -0,0 +1,34 @@
+/* Asynchronous write.  Stub version.
+   Copyright (C) 2001-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <errno.h>
+
+#ifdef BE_AIO64
+#define aiocb		aiocb64
+#define aio_write	aio_write64
+#endif
+
+int
+aio_write (struct aiocb *aiocbp)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (aio_write)
diff --git a/REORG.TODO/rt/aio_write64.c b/REORG.TODO/rt/aio_write64.c
new file mode 100644
index 0000000000..88d5c001ce
--- /dev/null
+++ b/REORG.TODO/rt/aio_write64.c
@@ -0,0 +1,2 @@
+#define BE_AIO64
+#include <aio_write.c>
diff --git a/REORG.TODO/rt/bits/mqueue2.h b/REORG.TODO/rt/bits/mqueue2.h
new file mode 100644
index 0000000000..70ac65550e
--- /dev/null
+++ b/REORG.TODO/rt/bits/mqueue2.h
@@ -0,0 +1,57 @@
+/* Checking macros for mq functions.
+   Copyright (C) 2007-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef	_FCNTL_H
+# error "Never include <bits/mqueue2.h> directly; use <mqueue.h> instead."
+#endif
+
+/* Check that calls to mq_open with O_CREAT set have an appropriate third and fourth
+   parameter.  */
+extern mqd_t mq_open (const char *__name, int __oflag, ...)
+     __THROW __nonnull ((1));
+extern mqd_t __mq_open_2 (const char *__name, int __oflag)
+     __THROW __nonnull ((1));
+extern mqd_t __REDIRECT_NTH (__mq_open_alias, (const char *__name,
+					       int __oflag, ...), mq_open)
+     __nonnull ((1));
+__errordecl (__mq_open_wrong_number_of_args,
+	     "mq_open can be called either with 2 or 4 arguments");
+__errordecl (__mq_open_missing_mode_and_attr,
+	     "mq_open with O_CREAT in second argument needs 4 arguments");
+
+__fortify_function mqd_t
+__NTH (mq_open (const char *__name, int __oflag, ...))
+{
+  if (__va_arg_pack_len () != 0 && __va_arg_pack_len () != 2)
+    __mq_open_wrong_number_of_args ();
+
+  if (__builtin_constant_p (__oflag))
+    {
+      if ((__oflag & O_CREAT) != 0 && __va_arg_pack_len () == 0)
+	{
+	  __mq_open_missing_mode_and_attr ();
+	  return __mq_open_2 (__name, __oflag);
+	}
+      return __mq_open_alias (__name, __oflag, __va_arg_pack ());
+    }
+
+  if (__va_arg_pack_len () == 0)
+    return __mq_open_2 (__name, __oflag);
+
+  return __mq_open_alias (__name, __oflag, __va_arg_pack ());
+}
diff --git a/REORG.TODO/rt/clock-compat.c b/REORG.TODO/rt/clock-compat.c
new file mode 100644
index 0000000000..61ebecd5d6
--- /dev/null
+++ b/REORG.TODO/rt/clock-compat.c
@@ -0,0 +1,61 @@
+/* ABI compatibility redirects for clock_* symbols in librt.
+   Copyright (C) 2012-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <shlib-compat.h>
+
+/* The clock_* symbols were originally defined in librt and so
+   are part of its ABI.  As of 2.17, they have moved to libc.
+   So we supply definitions for librt that just redirect to
+   their libc counterparts.  */
+
+#if SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_17)
+
+#include <time.h>
+
+#if HAVE_IFUNC
+# undef INIT_ARCH
+# define INIT_ARCH()
+# define COMPAT_REDIRECT(name, proto, arglist) libc_ifunc (name, &__##name)
+#else
+# define COMPAT_REDIRECT(name, proto, arglist)				      \
+  int									      \
+  name proto								      \
+  {									      \
+    return __##name arglist;						      \
+  }
+#endif
+
+COMPAT_REDIRECT (clock_getres,
+		 (clockid_t clock_id, struct timespec *res),
+		 (clock_id, res))
+COMPAT_REDIRECT (clock_gettime,
+		 (clockid_t clock_id, struct timespec *tp),
+		 (clock_id, tp))
+COMPAT_REDIRECT (clock_settime,
+		 (clockid_t clock_id, const struct timespec *tp),
+		 (clock_id, tp))
+COMPAT_REDIRECT (clock_getcpuclockid,
+		 (pid_t pid, clockid_t *clock_id),
+		 (pid, clock_id))
+COMPAT_REDIRECT (clock_nanosleep,
+		 (clockid_t clock_id, int flags,
+		  const struct timespec *req,
+		  struct timespec *rem),
+		 (clock_id, flags, req, rem))
+
+#endif
diff --git a/REORG.TODO/rt/clock_getcpuclockid.c b/REORG.TODO/rt/clock_getcpuclockid.c
new file mode 100644
index 0000000000..37e6a328a1
--- /dev/null
+++ b/REORG.TODO/rt/clock_getcpuclockid.c
@@ -0,0 +1,40 @@
+/* Get a clockid_t for the process CPU clock of a given process.  Generic.
+   Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.h>
+#include <unistd.h>
+
+int
+__clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
+{
+  /* We don't allow any process ID but our own.  */
+  if (pid != 0 && pid != getpid ())
+    return EPERM;
+
+#ifdef CLOCK_PROCESS_CPUTIME_ID
+  /* Store the number.  */
+  *clock_id = CLOCK_PROCESS_CPUTIME_ID;
+
+  return 0;
+#else
+  /* We don't have a timer for that.  */
+  return ENOENT;
+#endif
+}
+weak_alias (__clock_getcpuclockid, clock_getcpuclockid)
diff --git a/REORG.TODO/rt/clock_getres.c b/REORG.TODO/rt/clock_getres.c
new file mode 100644
index 0000000000..e97af4d811
--- /dev/null
+++ b/REORG.TODO/rt/clock_getres.c
@@ -0,0 +1,30 @@
+/* Get the resolution of a clock.  Stub version.
+   Copyright (C) 1999-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.h>
+
+/* Get resolution of clock.  */
+int
+__clock_getres (clockid_t clock_id, struct timespec *res)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__clock_getres, clock_getres)
+stub_warning (clock_getres)
diff --git a/REORG.TODO/rt/clock_gettime.c b/REORG.TODO/rt/clock_gettime.c
new file mode 100644
index 0000000000..a9eafd66c0
--- /dev/null
+++ b/REORG.TODO/rt/clock_gettime.c
@@ -0,0 +1,31 @@
+/* Get the current value of a clock.  Stub version.
+   Copyright (C) 1999-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.h>
+
+/* Get current value of CLOCK and store it in TP.  */
+int
+__clock_gettime (clockid_t clock_id, struct timespec *tp)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__clock_gettime, clock_gettime)
+libc_hidden_def (__clock_gettime)
+stub_warning (clock_gettime)
diff --git a/REORG.TODO/rt/clock_nanosleep.c b/REORG.TODO/rt/clock_nanosleep.c
new file mode 100644
index 0000000000..d3147b316b
--- /dev/null
+++ b/REORG.TODO/rt/clock_nanosleep.c
@@ -0,0 +1,37 @@
+/* High-resolution sleep with the specified clock.  Stub version.
+   Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.h>
+
+int
+__clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
+		   struct timespec *rem)
+{
+  if (__builtin_expect (req->tv_nsec, 0) < 0
+      || __builtin_expect (req->tv_nsec, 0) >= 1000000000)
+    return EINVAL;
+
+  if (flags != TIMER_ABSTIME && flags != 0)
+    return EINVAL;
+
+  /* Not implemented.  */
+  return ENOSYS;
+}
+weak_alias (__clock_nanosleep, clock_nanosleep)
+stub_warning (clock_nanosleep)
diff --git a/REORG.TODO/rt/clock_settime.c b/REORG.TODO/rt/clock_settime.c
new file mode 100644
index 0000000000..51412f45c8
--- /dev/null
+++ b/REORG.TODO/rt/clock_settime.c
@@ -0,0 +1,30 @@
+/* Set a clock to a given value.  Stub version.
+   Copyright (C) 1999-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.h>
+
+/* Set CLOCK to value TP.  */
+int
+__clock_settime (clockid_t clock_id, const struct timespec *tp)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+weak_alias (__clock_settime, clock_settime)
+stub_warning (clock_settime)
diff --git a/REORG.TODO/rt/get_clockfreq.c b/REORG.TODO/rt/get_clockfreq.c
new file mode 100644
index 0000000000..474534940d
--- /dev/null
+++ b/REORG.TODO/rt/get_clockfreq.c
@@ -0,0 +1,27 @@
+/* Get frequency of the system processor.
+   Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <libc-internal.h>
+
+hp_timing_t
+__get_clockfreq (void)
+{
+  /* There is no generic way to find this out since we have in general
+     no counter register either.  */
+  return 0;
+}
diff --git a/REORG.TODO/rt/lio_listio.c b/REORG.TODO/rt/lio_listio.c
new file mode 100644
index 0000000000..e6a92002e8
--- /dev/null
+++ b/REORG.TODO/rt/lio_listio.c
@@ -0,0 +1,40 @@
+/* Enqueue a list of read or write requests.  Stub version.
+   Copyright (C) 2001-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <errno.h>
+
+#ifdef BE_AIO64
+#define lio_listio	lio_listio64
+#define aiocb		aiocb64
+#define aio_read	aio_read64
+#define aio_write	aio_write64
+#define aio_suspend	aio_suspend64
+#endif
+
+
+int
+lio_listio (int mode,
+	    struct aiocb *const list[], int nent,
+	    struct sigevent *sig)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (lio_listio)
diff --git a/REORG.TODO/rt/lio_listio64.c b/REORG.TODO/rt/lio_listio64.c
new file mode 100644
index 0000000000..35a571c685
--- /dev/null
+++ b/REORG.TODO/rt/lio_listio64.c
@@ -0,0 +1,2 @@
+#define BE_AIO64
+#include <lio_listio.c>
diff --git a/REORG.TODO/rt/mq_close.c b/REORG.TODO/rt/mq_close.c
new file mode 100644
index 0000000000..1bec8c5852
--- /dev/null
+++ b/REORG.TODO/rt/mq_close.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Removes the association between message queue descriptor MQDES and its
+   message queue.  */
+int
+mq_close (mqd_t mqdes)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (mq_close)
diff --git a/REORG.TODO/rt/mq_getattr.c b/REORG.TODO/rt/mq_getattr.c
new file mode 100644
index 0000000000..0a26b0ebca
--- /dev/null
+++ b/REORG.TODO/rt/mq_getattr.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Query status and attributes of message queue MQDES.  */
+int
+mq_getattr (mqd_t mqdes, struct mq_attr *mqstat)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (mq_getattr)
diff --git a/REORG.TODO/rt/mq_notify.c b/REORG.TODO/rt/mq_notify.c
new file mode 100644
index 0000000000..a2d0ecf48d
--- /dev/null
+++ b/REORG.TODO/rt/mq_notify.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Register notification upon message arrival to an empty message queue
+   MQDES.  */
+int
+mq_notify (mqd_t mqdes, const struct sigevent *notification)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (mq_notify)
diff --git a/REORG.TODO/rt/mq_open.c b/REORG.TODO/rt/mq_open.c
new file mode 100644
index 0000000000..c584375a5a
--- /dev/null
+++ b/REORG.TODO/rt/mq_open.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <stdio.h>
+
+/* Establish connection between a process and a message queue NAME and
+   return message queue descriptor or (mqd_t) -1 on error.  OFLAG determines
+   the type of access used.  If O_CREAT is on OFLAG, the third argument is
+   taken as a `mode_t', the mode of the created message queue, and the fourth
+   argument is taken as `struct mq_attr *', pointer to message queue
+   attributes.  If the fourth argument is NULL, default attributes are
+   used.  */
+mqd_t
+__mq_open (const char *name, int oflag, ...)
+{
+  __set_errno (ENOSYS);
+  return (mqd_t) -1;
+}
+strong_alias (__mq_open, mq_open);
+stub_warning (mq_open)
+
+mqd_t
+__mq_open_2 (const char *name, int oflag)
+{
+  if (oflag & O_CREAT)
+    __fortify_fail ("invalid mq_open call: O_CREAT without mode and attr");
+
+  return __mq_open (name, oflag);
+}
+stub_warning (__mq_open_2)
diff --git a/REORG.TODO/rt/mq_receive.c b/REORG.TODO/rt/mq_receive.c
new file mode 100644
index 0000000000..8c47bcbbe3
--- /dev/null
+++ b/REORG.TODO/rt/mq_receive.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Receive the oldest from highest priority messages in message queue
+   MQDES.  */
+ssize_t
+mq_receive (mqd_t mqdes, char *msg_ptr, size_t msg_len,
+	    unsigned int *msg_prio)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (mq_receive)
diff --git a/REORG.TODO/rt/mq_send.c b/REORG.TODO/rt/mq_send.c
new file mode 100644
index 0000000000..e9ca06cfd7
--- /dev/null
+++ b/REORG.TODO/rt/mq_send.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Add message pointed by MSG_PTR to message queue MQDES.  */
+int
+mq_send (mqd_t mqdes, const char *msg_ptr, size_t msg_len,
+	 unsigned int msg_prio)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (mq_send)
diff --git a/REORG.TODO/rt/mq_setattr.c b/REORG.TODO/rt/mq_setattr.c
new file mode 100644
index 0000000000..6678198139
--- /dev/null
+++ b/REORG.TODO/rt/mq_setattr.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Set attributes associated with message queue MQDES and if OMQSTAT is
+   not NULL also query its old attributes.  */
+int
+mq_setattr (mqd_t mqdes, const struct mq_attr *__restrict mqstat,
+	    struct mq_attr *__restrict omqstat)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+hidden_def (mq_setattr)
+stub_warning (mq_setattr)
diff --git a/REORG.TODO/rt/mq_timedreceive.c b/REORG.TODO/rt/mq_timedreceive.c
new file mode 100644
index 0000000000..e6786ebc65
--- /dev/null
+++ b/REORG.TODO/rt/mq_timedreceive.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Receive the oldest from highest priority messages in message queue
+   MQDES, stop waiting if ABS_TIMEOUT expires.  */
+ssize_t
+__mq_timedreceive (mqd_t mqdes, char *__restrict msg_ptr, size_t msg_len,
+		 unsigned int *__restrict msg_prio,
+		 const struct timespec *__restrict abs_timeout)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+hidden_def (__mq_timedreceive)
+weak_alias (__mq_timedreceive, mq_timedreceive)
+hidden_weak (mq_timedreceive)
+stub_warning (mq_timedreceive)
diff --git a/REORG.TODO/rt/mq_timedsend.c b/REORG.TODO/rt/mq_timedsend.c
new file mode 100644
index 0000000000..c48c9f7b13
--- /dev/null
+++ b/REORG.TODO/rt/mq_timedsend.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Add message pointed by MSG_PTR to message queue MQDES, stop blocking
+   on full message queue if ABS_TIMEOUT expires.  */
+int
+__mq_timedsend (mqd_t mqdes, const char *msg_ptr, size_t msg_len,
+	      unsigned int msg_prio, const struct timespec *abs_timeout)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+hidden_def (__mq_timedsend)
+weak_alias (__mq_timedsend, mq_timedsend)
+hidden_weak (mq_timedsend)
+stub_warning (mq_timedsend)
diff --git a/REORG.TODO/rt/mq_unlink.c b/REORG.TODO/rt/mq_unlink.c
new file mode 100644
index 0000000000..7139f8e1be
--- /dev/null
+++ b/REORG.TODO/rt/mq_unlink.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Remove message queue named NAME.  */
+int
+mq_unlink (const char *name)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (mq_unlink)
diff --git a/REORG.TODO/rt/mqueue.h b/REORG.TODO/rt/mqueue.h
new file mode 100644
index 0000000000..c79aa53b94
--- /dev/null
+++ b/REORG.TODO/rt/mqueue.h
@@ -0,0 +1,98 @@
+/* Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _MQUEUE_H
+#define _MQUEUE_H	1
+
+#include <features.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <bits/types/sigevent_t.h>
+#include <bits/types/struct_timespec.h>
+/* Get the definition of mqd_t and struct mq_attr.  */
+#include <bits/mqueue.h>
+
+__BEGIN_DECLS
+
+/* Establish connection between a process and a message queue NAME and
+   return message queue descriptor or (mqd_t) -1 on error.  OFLAG determines
+   the type of access used.  If O_CREAT is on OFLAG, the third argument is
+   taken as a `mode_t', the mode of the created message queue, and the fourth
+   argument is taken as `struct mq_attr *', pointer to message queue
+   attributes.  If the fourth argument is NULL, default attributes are
+   used.  */
+extern mqd_t mq_open (const char *__name, int __oflag, ...)
+  __THROW __nonnull ((1));
+
+/* Removes the association between message queue descriptor MQDES and its
+   message queue.  */
+extern int mq_close (mqd_t __mqdes) __THROW;
+
+/* Query status and attributes of message queue MQDES.  */
+extern int mq_getattr (mqd_t __mqdes, struct mq_attr *__mqstat)
+  __THROW __nonnull ((2));
+
+/* Set attributes associated with message queue MQDES and if OMQSTAT is
+   not NULL also query its old attributes.  */
+extern int mq_setattr (mqd_t __mqdes,
+		       const struct mq_attr *__restrict __mqstat,
+		       struct mq_attr *__restrict __omqstat)
+  __THROW __nonnull ((2));
+
+/* Remove message queue named NAME.  */
+extern int mq_unlink (const char *__name) __THROW __nonnull ((1));
+
+/* Register notification issued upon message arrival to an empty
+   message queue MQDES.  */
+extern int mq_notify (mqd_t __mqdes, const struct sigevent *__notification)
+     __THROW;
+
+/* Receive the oldest from highest priority messages in message queue
+   MQDES.  */
+extern ssize_t mq_receive (mqd_t __mqdes, char *__msg_ptr, size_t __msg_len,
+			   unsigned int *__msg_prio) __nonnull ((2));
+
+/* Add message pointed by MSG_PTR to message queue MQDES.  */
+extern int mq_send (mqd_t __mqdes, const char *__msg_ptr, size_t __msg_len,
+		    unsigned int __msg_prio) __nonnull ((2));
+
+#ifdef __USE_XOPEN2K
+/* Receive the oldest from highest priority messages in message queue
+   MQDES, stop waiting if ABS_TIMEOUT expires.  */
+extern ssize_t mq_timedreceive (mqd_t __mqdes, char *__restrict __msg_ptr,
+				size_t __msg_len,
+				unsigned int *__restrict __msg_prio,
+				const struct timespec *__restrict __abs_timeout)
+  __nonnull ((2, 5));
+
+/* Add message pointed by MSG_PTR to message queue MQDES, stop blocking
+   on full message queue if ABS_TIMEOUT expires.  */
+extern int mq_timedsend (mqd_t __mqdes, const char *__msg_ptr,
+			 size_t __msg_len, unsigned int __msg_prio,
+			 const struct timespec *__abs_timeout)
+  __nonnull ((2, 5));
+#endif
+
+/* Define some inlines helping to catch common problems.  */
+#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function \
+    && defined __va_arg_pack_len
+# include <bits/mqueue2.h>
+#endif
+
+__END_DECLS
+
+#endif /* mqueue.h */
diff --git a/REORG.TODO/rt/shm_open.c b/REORG.TODO/rt/shm_open.c
new file mode 100644
index 0000000000..4bd1e51568
--- /dev/null
+++ b/REORG.TODO/rt/shm_open.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <sys/mman.h>
+
+/* Open shared memory object.  */
+int
+shm_open (const char *name, int oflag, mode_t mode)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (shm_open)
diff --git a/REORG.TODO/rt/shm_unlink.c b/REORG.TODO/rt/shm_unlink.c
new file mode 100644
index 0000000000..1a55867066
--- /dev/null
+++ b/REORG.TODO/rt/shm_unlink.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <sys/mman.h>
+
+/* Remove shared memory object.  */
+int
+shm_unlink (const char *name)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (shm_unlink)
diff --git a/REORG.TODO/rt/timer_create.c b/REORG.TODO/rt/timer_create.c
new file mode 100644
index 0000000000..0579154ba6
--- /dev/null
+++ b/REORG.TODO/rt/timer_create.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.h>
+
+/* Create new per-process timer using CLOCK.  */
+int
+timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (timer_create)
diff --git a/REORG.TODO/rt/timer_delete.c b/REORG.TODO/rt/timer_delete.c
new file mode 100644
index 0000000000..b1dd1ad5c5
--- /dev/null
+++ b/REORG.TODO/rt/timer_delete.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.h>
+
+/* Delete timer TIMERID.  */
+int
+timer_delete (timer_t timerid)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (timer_delete)
diff --git a/REORG.TODO/rt/timer_getoverr.c b/REORG.TODO/rt/timer_getoverr.c
new file mode 100644
index 0000000000..f543202159
--- /dev/null
+++ b/REORG.TODO/rt/timer_getoverr.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.h>
+
+/* Get expiration overrun for timer TIMERID.  */
+int
+timer_getoverrun (timer_t timerid)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (timer_getoverrun)
diff --git a/REORG.TODO/rt/timer_gettime.c b/REORG.TODO/rt/timer_gettime.c
new file mode 100644
index 0000000000..ee8e214fe1
--- /dev/null
+++ b/REORG.TODO/rt/timer_gettime.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.h>
+
+/* Get current value of timer TIMERID and store it in VLAUE.  */
+int
+timer_gettime (timer_t timerid, struct itimerspec *value)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (timer_gettime)
diff --git a/REORG.TODO/rt/timer_settime.c b/REORG.TODO/rt/timer_settime.c
new file mode 100644
index 0000000000..1e70c89bc0
--- /dev/null
+++ b/REORG.TODO/rt/timer_settime.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 1999-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <time.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)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+stub_warning (timer_settime)
diff --git a/REORG.TODO/rt/tst-aio.c b/REORG.TODO/rt/tst-aio.c
new file mode 100644
index 0000000000..27035e19aa
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio.c
@@ -0,0 +1,289 @@
+/* Tests for AIO in librt.
+   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+
+/* Prototype for our test function.  */
+extern void do_prepare (int argc, char *argv[]);
+extern int do_test (int argc, char *argv[]);
+
+/* We have a preparation function.  */
+#define PREPARE do_prepare
+
+/* We might need a bit longer timeout.  */
+#define TIMEOUT 20 /* sec */
+
+/* This defines the `main' function and some more.  */
+#include <test-skeleton.c>
+
+
+/* These are for the temporary file we generate.  */
+char *name;
+int fd;
+
+void
+do_prepare (int argc, char *argv[])
+{
+  size_t name_len;
+
+  name_len = strlen (test_dir);
+  name = xmalloc (name_len + sizeof ("/aioXXXXXX"));
+  mempcpy (mempcpy (name, test_dir, name_len),
+	   "/aioXXXXXX", sizeof ("/aioXXXXXX"));
+
+  /* Open our test file.   */
+  fd = mkstemp (name);
+  if (fd == -1)
+    error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
+  add_temp_file (name);
+}
+
+
+static int
+test_file (const void *buf, size_t size, int fd, const char *msg)
+{
+  struct stat st;
+  char tmp[size];
+
+  errno = 0;
+  if (fstat (fd, &st) < 0)
+    {
+      error (0, errno, "%s: failed stat", msg);
+      return 1;
+    }
+
+  if (st.st_size != (off_t) size)
+    {
+      error (0, errno, "%s: wrong size: %lu, should be %lu",
+	     msg, (unsigned long int) st.st_size, (unsigned long int) size);
+      return 1;
+    }
+
+  if (pread (fd, tmp, size, 0) != (ssize_t) size)
+    {
+      error (0, errno, "%s: failed pread", msg);
+      return 1;
+    }
+
+  if (memcmp (buf, tmp, size) != 0)
+    {
+      error (0, errno, "%s: failed comparison", msg);
+      return 1;
+    }
+
+  printf ("%s test ok\n", msg);
+
+  return 0;
+}
+
+
+static int
+do_wait (struct aiocb **cbp, size_t nent, int allowed_err)
+{
+  int go_on;
+  size_t cnt;
+  int result = 0;
+
+  do
+    {
+      aio_suspend ((const struct aiocb *const *) cbp, nent, NULL);
+      go_on = 0;
+      for (cnt = 0; cnt < nent; ++cnt)
+	if (cbp[cnt] != NULL)
+	  {
+	    if (aio_error (cbp[cnt]) == EINPROGRESS)
+	      go_on = 1;
+	    else
+	      {
+		if (aio_return (cbp[cnt]) == -1
+		    && (allowed_err == 0
+			|| aio_error (cbp[cnt]) != allowed_err))
+		  {
+		    error (0, aio_error (cbp[cnt]), "Operation failed\n");
+		    result = 1;
+		  }
+		cbp[cnt] = NULL;
+	      }
+	  }
+    }
+  while (go_on);
+
+  return result;
+}
+
+
+int
+do_test (int argc, char *argv[])
+{
+  struct aiocb cbs[10];
+  struct aiocb cbs_fsync;
+  struct aiocb *cbp[10];
+  struct aiocb *cbp_fsync[1];
+  char buf[1000];
+  size_t cnt;
+  int result = 0;
+
+  /* Preparation.  */
+  for (cnt = 0; cnt < 10; ++cnt)
+    {
+      cbs[cnt].aio_fildes = fd;
+      cbs[cnt].aio_reqprio = 0;
+      cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100);
+      cbs[cnt].aio_nbytes = 100;
+      cbs[cnt].aio_offset = cnt * 100;
+      cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE;
+
+      cbp[cnt] = &cbs[cnt];
+    }
+
+  /* First a simple test.  */
+  for (cnt = 10; cnt > 0; )
+    if (aio_write (cbp[--cnt]) < 0 && errno == ENOSYS)
+      {
+	error (0, 0, "no aio support in this configuration");
+	return 0;
+      }
+  /* Wait 'til the results are there.  */
+  result |= do_wait (cbp, 10, 0);
+  /* Test this.  */
+  result |= test_file (buf, sizeof (buf), fd, "aio_write");
+
+  /* Read now as we've written it.  */
+  memset (buf, '\0', sizeof (buf));
+  /* Issue the commands.  */
+  for (cnt = 10; cnt > 0; )
+    {
+      --cnt;
+      cbp[cnt] = &cbs[cnt];
+      aio_read (cbp[cnt]);
+    }
+  /* Wait 'til the results are there.  */
+  result |= do_wait (cbp, 10, 0);
+  /* Test this.  */
+  for (cnt = 0; cnt < 1000; ++cnt)
+    if (buf[cnt] != '0' + (cnt / 100))
+      {
+	result = 1;
+	error (0, 0, "comparison failed for aio_read test");
+	break;
+      }
+
+  if (cnt == 1000)
+    puts ("aio_read test ok");
+
+  /* Remove the test file contents.  */
+  if (ftruncate (fd, 0) < 0)
+    {
+      error (0, errno, "ftruncate failed\n");
+      result = 1;
+    }
+
+  /* Test lio_listio.  */
+  for (cnt = 0; cnt < 10; ++cnt)
+    {
+      cbs[cnt].aio_lio_opcode = LIO_WRITE;
+      cbp[cnt] = &cbs[cnt];
+    }
+  /* Issue the command.  */
+  lio_listio (LIO_WAIT, cbp, 10, NULL);
+  /* ...and immediately test it since we started it in wait mode.  */
+  result |= test_file (buf, sizeof (buf), fd, "lio_listio (write)");
+
+  /* Test aio_fsync.  */
+  cbs_fsync.aio_fildes = fd;
+  cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE;
+  cbp_fsync[0] = &cbs_fsync;
+
+  /* Remove the test file contents first.  */
+  if (ftruncate (fd, 0) < 0)
+    {
+      error (0, errno, "ftruncate failed\n");
+      result = 1;
+    }
+
+  /* Write again.  */
+  for (cnt = 10; cnt > 0; )
+    aio_write (cbp[--cnt]);
+
+  if (aio_fsync (O_SYNC, &cbs_fsync) < 0)
+    {
+      error (0, errno, "aio_fsync failed\n");
+      result = 1;
+    }
+  result |= do_wait (cbp_fsync, 1, 0);
+
+  /* ...and test since all data should be on disk now.  */
+  result |= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)");
+
+  /* Test aio_cancel.  */
+  /* Remove the test file contents first.  */
+  if (ftruncate (fd, 0) < 0)
+    {
+      error (0, errno, "ftruncate failed\n");
+      result = 1;
+    }
+
+  /* Write again.  */
+  for (cnt = 10; cnt > 0; )
+    aio_write (cbp[--cnt]);
+
+  /* Cancel all requests.  */
+  if (aio_cancel (fd, NULL) == -1)
+    printf ("aio_cancel (fd, NULL) cannot cancel anything\n");
+
+  result |= do_wait (cbp, 10, ECANCELED);
+
+  /* Another test for aio_cancel.  */
+  /* Remove the test file contents first.  */
+  if (ftruncate (fd, 0) < 0)
+    {
+      error (0, errno, "ftruncate failed\n");
+      result = 1;
+    }
+
+  /* Write again.  */
+  for (cnt = 10; cnt > 0; )
+    {
+      --cnt;
+      cbp[cnt] = &cbs[cnt];
+      aio_write (cbp[cnt]);
+    }
+  puts ("finished3");
+
+  /* Cancel all requests.  */
+  for (cnt = 10; cnt > 0; )
+    if (aio_cancel (fd, cbp[--cnt]) == -1)
+      /* This is not an error.  The request can simply be finished.  */
+      printf ("aio_cancel (fd, cbp[%Zd]) cannot be canceled\n", cnt);
+  puts ("finished2");
+
+  result |= do_wait (cbp, 10, ECANCELED);
+
+  puts ("finished");
+
+  return result;
+}
diff --git a/REORG.TODO/rt/tst-aio10.c b/REORG.TODO/rt/tst-aio10.c
new file mode 100644
index 0000000000..6e8f7b78c0
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio10.c
@@ -0,0 +1,119 @@
+#include <aio.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <unistd.h>
+
+static pthread_barrier_t b;
+static pthread_t main_thread;
+static int flag;
+
+
+static void *
+tf (void *arg)
+{
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("child: barrier_wait failed");
+      exit (1);
+    }
+
+  /* There is unfortunately no other way to try to make sure the other
+     thread reached the aio_suspend call.  This test could fail on
+     highly loaded machines.  */
+  sleep (2);
+
+  pthread_kill (main_thread, SIGUSR1);
+
+  while (1)
+    sleep (1000);
+
+  return NULL;
+}
+
+
+static void
+sh (int sig)
+{
+  flag = 1;
+}
+
+
+static int
+do_test (void)
+{
+  main_thread = pthread_self ();
+
+  struct sigaction sa;
+
+  sa.sa_handler = sh;
+  sa.sa_flags = 0;
+  sigemptyset (&sa.sa_mask);
+
+  if (sigaction (SIGUSR1, &sa, NULL) != 0)
+    {
+      puts ("sigaction failed");
+      return 1;
+    }
+
+  if (pthread_barrier_init (&b, NULL, 2) != 0)
+    {
+      puts ("barrier_init");
+      return 1;
+    }
+
+  int fds[2];
+  if (pipe (fds) != 0)
+    {
+      puts ("pipe failed");
+      return 1;
+    }
+
+  char buf[42];
+  struct aiocb req;
+  req.aio_fildes = fds[0];
+  req.aio_lio_opcode = LIO_READ;
+  req.aio_reqprio = 0;
+  req.aio_offset = 0;
+  req.aio_buf = buf;
+  req.aio_nbytes = sizeof (buf);
+  req.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+  pthread_t th;
+  if (pthread_create (&th, NULL, tf, NULL) != 0)
+    {
+      puts ("create failed");
+      return 1;
+    }
+
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("parent: barrier_wait failed");
+      exit (1);
+    }
+
+  struct aiocb *list[1];
+  list[0] = &req;
+
+  e = lio_listio (LIO_WAIT, list, 1, NULL);
+  if (e != -1)
+    {
+      puts ("lio_listio succeeded");
+      return 1;
+    }
+  if (errno != EINTR)
+    {
+      printf ("lio_listio did not return EINTR: %d (%d = %m)\n", e, errno);
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#define TIMEOUT 5
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-aio2.c b/REORG.TODO/rt/tst-aio2.c
new file mode 100644
index 0000000000..27cf78e984
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio2.c
@@ -0,0 +1,106 @@
+/* Test for notification mechanism in lio_listio.
+   Copyright (C) 2000-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <pthread.h>
+
+
+static pthread_barrier_t b;
+
+
+static void
+thrfct (sigval_t arg)
+{
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("thread: barrier_wait failed");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (int argc, char *argv[])
+{
+  char name[] = "/tmp/aio2.XXXXXX";
+  int fd;
+  struct aiocb *arr[1];
+  struct aiocb cb;
+  static const char buf[] = "Hello World\n";
+
+  fd = mkstemp (name);
+  if (fd == -1)
+    {
+      printf ("cannot open temp name: %m\n");
+      return 1;
+    }
+
+  unlink (name);
+
+  if (pthread_barrier_init (&b, NULL, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  arr[0] = &cb;
+
+  cb.aio_fildes = fd;
+  cb.aio_lio_opcode = LIO_WRITE;
+  cb.aio_reqprio = 0;
+  cb.aio_buf = (void *) buf;
+  cb.aio_nbytes = sizeof (buf) - 1;
+  cb.aio_offset = 0;
+  cb.aio_sigevent.sigev_notify = SIGEV_THREAD;
+  cb.aio_sigevent.sigev_notify_function = thrfct;
+  cb.aio_sigevent.sigev_notify_attributes = NULL;
+  cb.aio_sigevent.sigev_value.sival_ptr = NULL;
+
+  if (lio_listio (LIO_WAIT, arr, 1, NULL) < 0)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("no aio support in this configuration");
+	  return 0;
+	}
+      printf ("lio_listio failed: %m\n");
+      return 1;
+    }
+
+  puts ("lio_listio returned");
+
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("barrier_wait failed");
+      return 1;
+    }
+
+  puts ("all OK");
+
+  return 0;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-aio3.c b/REORG.TODO/rt/tst-aio3.c
new file mode 100644
index 0000000000..fbe18af374
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio3.c
@@ -0,0 +1,108 @@
+/* Test for notification mechanism in lio_listio.
+   Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <pthread.h>
+
+static pthread_barrier_t b;
+
+
+static void
+thrfct (sigval_t arg)
+{
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("child: barrier_wait failed");
+      exit (1);
+    }
+}
+
+
+static int
+do_test (int argc, char *argv[])
+{
+  char name[] = "/tmp/aio3.XXXXXX";
+  int fd;
+  struct aiocb *arr[1];
+  struct aiocb cb;
+  static const char buf[] = "Hello World\n";
+
+  fd = mkstemp (name);
+  if (fd == -1)
+    {
+      printf ("cannot open temp name: %m\n");
+      return 1;
+    }
+
+  unlink (name);
+
+  if (pthread_barrier_init (&b, NULL, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  arr[0] = &cb;
+
+  cb.aio_fildes = fd;
+  cb.aio_lio_opcode = LIO_WRITE;
+  cb.aio_reqprio = 0;
+  cb.aio_buf = (void *) buf;
+  cb.aio_nbytes = sizeof (buf) - 1;
+  cb.aio_offset = 0;
+  cb.aio_sigevent.sigev_notify = SIGEV_THREAD;
+  cb.aio_sigevent.sigev_notify_function = thrfct;
+  cb.aio_sigevent.sigev_notify_attributes = NULL;
+  cb.aio_sigevent.sigev_value.sival_ptr = NULL;
+
+  if (lio_listio (LIO_NOWAIT, arr, 1, NULL) < 0)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("no aio support in this configuration");
+	  return 0;
+	}
+      printf ("lio_listio failed: %m\n");
+      return 1;
+    }
+
+  if (aio_suspend ((const struct aiocb *const *) arr, 1, NULL) < 0)
+    {
+      printf ("aio_suspend failed: %m\n");
+      return 1;
+    }
+
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("parent: barrier_wait failed");
+      return 1;
+    }
+
+  puts ("all OK");
+
+  return 0;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-aio4.c b/REORG.TODO/rt/tst-aio4.c
new file mode 100644
index 0000000000..01ed485d52
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio4.c
@@ -0,0 +1,159 @@
+/* Test for completion signal handling.
+   Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+
+/* We might need a bit longer timeout.  */
+#define TIMEOUT 10 /* sec */
+
+int my_signo;
+
+volatile sig_atomic_t flag;
+
+
+static void
+sighandler (const int signo)
+{
+  flag = signo;
+}
+
+static int
+wait_flag (void)
+{
+  while (flag == 0)
+    {
+      puts ("Sleeping...");
+      sleep (1);
+    }
+
+  if (flag != my_signo)
+    {
+      printf ("signal handler received wrong signal, flag is %d\n", flag);
+      return 1;
+    }
+
+  return 0;
+}
+
+#ifndef SIGRTMIN
+# define SIGRTMIN -1
+# define SIGRTMAX -1
+#endif
+
+static int
+do_test (int argc, char *argv[])
+{
+  char name[] = "/tmp/aio4.XXXXXX";
+  int fd;
+  struct aiocb *arr[1];
+  struct aiocb cb;
+  static const char buf[] = "Hello World\n";
+  struct aioinit init = {10, 20, 0};
+  struct sigaction sa;
+  struct sigevent ev;
+
+  if (SIGRTMIN == -1)
+  {
+      printf ("RT signals not supported.\n");
+      return 0;
+  }
+
+  /* Select a signal from the middle of the available choices... */
+  my_signo = (SIGRTMAX + SIGRTMIN) / 2;
+
+  fd = mkstemp (name);
+  if (fd == -1)
+    {
+      printf ("cannot open temp name: %m\n");
+      return 1;
+    }
+
+  unlink (name);
+
+  /* Test also aio_init.  */
+  aio_init (&init);
+
+  arr[0] = &cb;
+
+  cb.aio_fildes = fd;
+  cb.aio_lio_opcode = LIO_WRITE;
+  cb.aio_reqprio = 0;
+  cb.aio_buf = (void *) buf;
+  cb.aio_nbytes = sizeof (buf) - 1;
+  cb.aio_offset = 0;
+  cb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
+  cb.aio_sigevent.sigev_notify_function = NULL;
+  cb.aio_sigevent.sigev_notify_attributes = NULL;
+  cb.aio_sigevent.sigev_signo = my_signo;
+  cb.aio_sigevent.sigev_value.sival_ptr = NULL;
+
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_notify_function = NULL;
+  ev.sigev_notify_attributes = NULL;
+  ev.sigev_signo = my_signo;
+
+  sa.sa_handler = sighandler;
+  sigemptyset (&sa.sa_mask);
+  sa.sa_flags = SA_RESTART;
+
+  if (sigaction (my_signo, &sa, NULL) < 0)
+    {
+      printf ("sigaction failed: %m\n");
+      return 1;
+    }
+
+  flag = 0;
+  /* First use aio_write.  */
+  if (aio_write (arr[0]) < 0)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("no aio support in this configuration");
+	  return 0;
+	}
+      printf ("aio_write failed: %m\n");
+      return 1;
+    }
+
+  if (wait_flag ())
+    return 1;
+
+  puts ("aio_write OK");
+
+  flag = 0;
+  /* Again with lio_listio.  */
+  if (lio_listio (LIO_NOWAIT, arr, 1, &ev) < 0)
+    {
+      printf ("lio_listio failed: %m\n");
+      return 1;
+    }
+
+  if (wait_flag ())
+    return 1;
+
+  puts ("all OK");
+
+  return 0;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-aio5.c b/REORG.TODO/rt/tst-aio5.c
new file mode 100644
index 0000000000..6097f1a8cc
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio5.c
@@ -0,0 +1,129 @@
+/* Test for completion thread handling.
+   Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+
+/* We might need a bit longer timeout.  */
+#define TIMEOUT 10 /* sec */
+
+#define MY_SIVAL 27
+
+volatile sig_atomic_t flag;
+
+
+static void
+callback (sigval_t s)
+{
+  flag = s.sival_int;
+}
+
+static int
+wait_flag (void)
+{
+  while (flag == 0)
+    {
+      puts ("Sleeping...");
+      sleep (1);
+    }
+
+  if (flag != MY_SIVAL)
+    {
+      printf ("signal handler received wrong signal, flag is %d\n", flag);
+      return 1;
+    }
+
+  return 0;
+}
+
+
+static int
+do_test (int argc, char *argv[])
+{
+  char name[] = "/tmp/aio5.XXXXXX";
+  int fd;
+  struct aiocb *arr[1];
+  struct aiocb cb;
+  static const char buf[] = "Hello World\n";
+  struct sigevent ev;
+
+  fd = mkstemp (name);
+  if (fd == -1)
+    {
+      printf ("cannot open temp name: %m\n");
+      return 1;
+    }
+
+  unlink (name);
+
+  arr[0] = &cb;
+
+  cb.aio_fildes = fd;
+  cb.aio_lio_opcode = LIO_WRITE;
+  cb.aio_reqprio = 0;
+  cb.aio_buf = (void *) buf;
+  cb.aio_nbytes = sizeof (buf) - 1;
+  cb.aio_offset = 0;
+  cb.aio_sigevent.sigev_notify = SIGEV_THREAD;
+  cb.aio_sigevent.sigev_notify_function = callback;
+  cb.aio_sigevent.sigev_notify_attributes = NULL;
+  cb.aio_sigevent.sigev_value.sival_int = MY_SIVAL;
+
+  ev.sigev_notify = SIGEV_THREAD;
+  ev.sigev_notify_function = callback;
+  ev.sigev_notify_attributes = NULL;
+  ev.sigev_value.sival_int = MY_SIVAL;
+
+  /* First use aio_write.  */
+  if (aio_write (arr[0]) < 0)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("no aio support in this configuration");
+	  return 0;
+	}
+      printf ("aio_write failed: %m\n");
+      return 1;
+    }
+
+  if (wait_flag ())
+    return 1;
+
+  puts ("aio_write OK");
+
+  flag = 0;
+  /* Again with lio_listio.  */
+  if (lio_listio (LIO_NOWAIT, arr, 1, &ev) < 0)
+    {
+      printf ("lio_listio failed: %m\n");
+      return 1;
+    }
+
+  if (wait_flag ())
+    return 1;
+
+  puts ("all OK");
+
+  return 0;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-aio6.c b/REORG.TODO/rt/tst-aio6.c
new file mode 100644
index 0000000000..7adbb3dede
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio6.c
@@ -0,0 +1,101 @@
+/* Test for timeout handling.
+   Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+
+/* We expect to wait for 3 seconds so we have to increase the timeout.  */
+#define TIMEOUT 10 /* sec */
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  struct aiocb *arr[1];
+  struct aiocb cb;
+  char buf[100];
+  struct timeval before;
+  struct timeval after;
+  struct timespec timeout;
+  int fd[2];
+  int result = 0;
+
+  if (pipe (fd) != 0)
+    {
+      printf ("cannot create pipe: %m\n");
+      return 1;
+    }
+
+  arr[0] = &cb;
+
+  cb.aio_fildes = fd[0];
+  cb.aio_lio_opcode = LIO_WRITE;
+  cb.aio_reqprio = 0;
+  cb.aio_buf = (void *) buf;
+  cb.aio_nbytes = sizeof (buf) - 1;
+  cb.aio_offset = 0;
+  cb.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+  /* Try to read from stdin where nothing will be available.  */
+  if (aio_read (arr[0]) < 0)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("no aio support in this configuration");
+	  return 0;
+	}
+      printf ("aio_read failed: %m\n");
+      return 1;
+    }
+
+  /* Get the current time.  */
+  gettimeofday (&before, NULL);
+
+  /* Wait for input which is unsuccessful and therefore the function will
+     time out.  */
+  timeout.tv_sec = 3;
+  timeout.tv_nsec = 0;
+  if (aio_suspend ((const struct aiocb *const*) arr, 1, &timeout) != -1)
+    {
+      puts ("aio_suspend() didn't return -1");
+      result = 1;
+    }
+  else if (errno != EAGAIN)
+    {
+      puts ("error not set to EAGAIN");
+      result = 1;
+    }
+  else
+    {
+      gettimeofday (&after, NULL);
+      if (after.tv_sec < before.tv_sec + 1)
+	{
+	  puts ("timeout came too early");
+	  result = 1;
+	}
+    }
+
+  return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-aio64.c b/REORG.TODO/rt/tst-aio64.c
new file mode 100644
index 0000000000..c05aa48238
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio64.c
@@ -0,0 +1,290 @@
+/* Tests for 64bit AIO in librt.
+   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#define _LARGEFILE_SOURCE 1
+#include <aio.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+
+/* Prototype for our test function.  */
+extern void do_prepare (int argc, char *argv[]);
+extern int do_test (int argc, char *argv[]);
+
+/* We have a preparation function.  */
+#define PREPARE do_prepare
+
+/* We might need a bit longer timeout.  */
+#define TIMEOUT 20 /* sec */
+
+/* This defines the `main' function and some more.  */
+#include <test-skeleton.c>
+
+
+/* These are for the temporary file we generate.  */
+char *name;
+int fd;
+
+void
+do_prepare (int argc, char *argv[])
+{
+  size_t name_len;
+
+  name_len = strlen (test_dir);
+  name = xmalloc (name_len + sizeof ("/aioXXXXXX"));
+  mempcpy (mempcpy (name, test_dir, name_len),
+	   "/aioXXXXXX", sizeof ("/aioXXXXXX"));
+
+  /* Open our test file.   */
+  fd = mkstemp (name);
+  if (fd == -1)
+    error (EXIT_FAILURE, errno, "cannot open test file `%s'", name);
+  add_temp_file (name);
+}
+
+
+static int
+test_file (const void *buf, size_t size, int fd, const char *msg)
+{
+  struct stat st;
+  char tmp[size];
+
+  errno = 0;
+  if (fstat (fd, &st) < 0)
+    {
+      error (0, errno, "%s: failed stat", msg);
+      return 1;
+    }
+
+  if (st.st_size != (off_t) size)
+    {
+      error (0, errno, "%s: wrong size: %lu, should be %lu",
+	     msg, (unsigned long int) st.st_size, (unsigned long int) size);
+      return 1;
+    }
+
+  if (pread (fd, tmp, size, 0) != (ssize_t) size)
+    {
+      error (0, errno, "%s: failed pread", msg);
+      return 1;
+    }
+
+  if (memcmp (buf, tmp, size) != 0)
+    {
+      error (0, errno, "%s: failed comparison", msg);
+      return 1;
+    }
+
+  printf ("%s test ok\n", msg);
+
+  return 0;
+}
+
+
+static int
+do_wait (struct aiocb64 **cbp, size_t nent, int allowed_err)
+{
+  int go_on;
+  size_t cnt;
+  int result = 0;
+
+  do
+    {
+      aio_suspend64 ((const struct aiocb64 *const *) cbp, nent, NULL);
+      go_on = 0;
+      for (cnt = 0; cnt < nent; ++cnt)
+	if (cbp[cnt] != NULL)
+	  {
+	    if (aio_error64 (cbp[cnt]) == EINPROGRESS)
+	      go_on = 1;
+	    else
+	      {
+		if (aio_return64 (cbp[cnt]) == -1
+		    && (allowed_err == 0
+			|| aio_error64 (cbp[cnt]) != allowed_err))
+		  {
+		    error (0, aio_error64 (cbp[cnt]), "Operation failed\n");
+		    result = 1;
+		  }
+		cbp[cnt] = NULL;
+	      }
+	  }
+    }
+  while (go_on);
+
+  return result;
+}
+
+
+int
+do_test (int argc, char *argv[])
+{
+  struct aiocb64 cbs[10];
+  struct aiocb64 cbs_fsync;
+  struct aiocb64 *cbp[10];
+  struct aiocb64 *cbp_fsync[1];
+  char buf[1000];
+  size_t cnt;
+  int result = 0;
+
+  /* Preparation.  */
+  for (cnt = 0; cnt < 10; ++cnt)
+    {
+      cbs[cnt].aio_fildes = fd;
+      cbs[cnt].aio_reqprio = 0;
+      cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100);
+      cbs[cnt].aio_nbytes = 100;
+      cbs[cnt].aio_offset = cnt * 100;
+      cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE;
+
+      cbp[cnt] = &cbs[cnt];
+    }
+
+  /* First a simple test.  */
+  for (cnt = 10; cnt > 0; )
+    if (aio_write64 (cbp[--cnt]) < 0 && errno == ENOSYS)
+      {
+	error (0, 0, "no aio support in this configuration");
+	return 0;
+      }
+  /* Wait 'til the results are there.  */
+  result |= do_wait (cbp, 10, 0);
+  /* Test this.  */
+  result |= test_file (buf, sizeof (buf), fd, "aio_write");
+
+  /* Read now as we've written it.  */
+  memset (buf, '\0', sizeof (buf));
+  /* Issue the commands.  */
+  for (cnt = 10; cnt > 0; )
+    {
+      --cnt;
+      cbp[cnt] = &cbs[cnt];
+      aio_read64 (cbp[cnt]);
+    }
+  /* Wait 'til the results are there.  */
+  result |= do_wait (cbp, 10, 0);
+  /* Test this.  */
+  for (cnt = 0; cnt < 1000; ++cnt)
+    if (buf[cnt] != '0' + (cnt / 100))
+      {
+	result = 1;
+	error (0, 0, "comparison failed for aio_read test");
+	break;
+      }
+
+  if (cnt == 1000)
+    puts ("aio_read test ok");
+
+  /* Remove the test file contents.  */
+  if (ftruncate64 (fd, 0) < 0)
+    {
+      error (0, errno, "ftruncate failed\n");
+      result = 1;
+    }
+
+  /* Test lio_listio.  */
+  for (cnt = 0; cnt < 10; ++cnt)
+    {
+      cbs[cnt].aio_lio_opcode = LIO_WRITE;
+      cbp[cnt] = &cbs[cnt];
+    }
+  /* Issue the command.  */
+  lio_listio64 (LIO_WAIT, cbp, 10, NULL);
+  /* ...and immediately test it since we started it in wait mode.  */
+  result |= test_file (buf, sizeof (buf), fd, "lio_listio (write)");
+
+  /* Test aio_fsync.  */
+  cbs_fsync.aio_fildes = fd;
+  cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE;
+  cbp_fsync[0] = &cbs_fsync;
+
+  /* Remove the test file contents first.  */
+  if (ftruncate64 (fd, 0) < 0)
+    {
+      error (0, errno, "ftruncate failed\n");
+      result = 1;
+    }
+
+  /* Write again.  */
+  for (cnt = 10; cnt > 0; )
+    aio_write64 (cbp[--cnt]);
+
+  if (aio_fsync64 (O_SYNC, &cbs_fsync) < 0)
+    {
+      error (0, errno, "aio_fsync failed\n");
+      result = 1;
+    }
+  result |= do_wait (cbp_fsync, 1, 0);
+
+  /* ...and test since all data should be on disk now.  */
+  result |= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)");
+
+  /* Test aio_cancel.  */
+  /* Remove the test file contents first.  */
+  if (ftruncate64 (fd, 0) < 0)
+    {
+      error (0, errno, "ftruncate failed\n");
+      result = 1;
+    }
+
+  /* Write again.  */
+  for (cnt = 10; cnt > 0; )
+    aio_write64 (cbp[--cnt]);
+
+  /* Cancel all requests.  */
+  if (aio_cancel64 (fd, NULL) == -1)
+    printf ("aio_cancel64 (fd, NULL) cannot cancel anything\n");
+
+  result |= do_wait (cbp, 10, ECANCELED);
+
+  /* Another test for aio_cancel.  */
+  /* Remove the test file contents first.  */
+  if (ftruncate64 (fd, 0) < 0)
+    {
+      error (0, errno, "ftruncate failed\n");
+      result = 1;
+    }
+
+  /* Write again.  */
+  for (cnt = 10; cnt > 0; )
+    {
+      --cnt;
+      cbp[cnt] = &cbs[cnt];
+      aio_write64 (cbp[cnt]);
+    }
+  puts ("finished3");
+
+  /* Cancel all requests.  */
+  for (cnt = 10; cnt > 0; )
+    if (aio_cancel64 (fd, cbp[--cnt]) == -1)
+      /* This is not an error.  The request can simply be finished.  */
+      printf ("aio_cancel64 (fd, cbp[%Zd]) cannot be canceled\n", cnt);
+  puts ("finished2");
+
+  result |= do_wait (cbp, 10, ECANCELED);
+
+  puts ("finished");
+
+  return result;
+}
diff --git a/REORG.TODO/rt/tst-aio7.c b/REORG.TODO/rt/tst-aio7.c
new file mode 100644
index 0000000000..c8b094606b
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio7.c
@@ -0,0 +1,177 @@
+/* Test for AIO POSIX compliance.
+   Copyright (C) 2001-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <aio.h>
+#include <error.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+
+/* We might wait for 3 seconds, so increase timeout to 10 seconds.  */
+#define TIMEOUT 10
+
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  int result = 0;
+  int piped[2];
+
+  /* Make a pipe that we will never write to, so we can block reading it.  */
+  if (pipe (piped) < 0)
+    {
+      perror ("pipe");
+      return 1;
+    }
+
+  /* Test for aio_cancel() detecting invalid file descriptor.  */
+  {
+    struct aiocb cb;
+    int fd = -1;
+
+    cb.aio_fildes = fd;
+    cb.aio_offset = 0;
+    cb.aio_buf = NULL;
+    cb.aio_nbytes = 0;
+    cb.aio_reqprio = 0;
+    cb.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+    errno = 0;
+
+    /* Case one: invalid fds that match.  */
+    if (aio_cancel (fd, &cb) != -1 || errno != EBADF)
+      {
+	if (errno == ENOSYS)
+	  {
+	    puts ("no aio support in this configuration");
+	    return 0;
+	  }
+
+	puts ("aio_cancel( -1, {-1..} ) did not return -1 or errno != EBADF");
+	++result;
+      }
+
+    cb.aio_fildes = -2;
+    errno = 0;
+
+    /* Case two: invalid fds that do not match; just print warning.  */
+    if (aio_cancel (fd, &cb) != -1 || errno != EBADF)
+      puts ("aio_cancel( -1, {-2..} ) did not return -1 or errno != EBADF");
+  }
+
+  /* Test for aio_fsync() detecting bad fd.  */
+  {
+    struct aiocb cb;
+    int fd = -1;
+
+    cb.aio_fildes = fd;
+    cb.aio_offset = 0;
+    cb.aio_buf = NULL;
+    cb.aio_nbytes = 0;
+    cb.aio_reqprio = 0;
+    cb.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+    errno = 0;
+
+    /* Case one: invalid fd.  */
+    if (aio_fsync (O_SYNC, &cb) != -1 || errno != EBADF)
+      {
+	puts ("aio_fsync( op, {-1..} ) did not return -1 or errno != EBADF");
+	++result;
+      }
+  }
+
+  /* Test for aio_suspend() suspending even if completed elements in list.  */
+  {
+#define BYTES 8
+    const int ELEMS = 2;
+    int i, r, fd;
+    static char buff[BYTES];
+    char name[] = "/tmp/aio7.XXXXXX";
+    struct timespec timeout;
+    static struct aiocb cb0, cb1;
+    struct aiocb *list[ELEMS];
+
+    fd = mkstemp (name);
+    if (fd < 0)
+      error (1, errno, "creating temp file");
+
+    if (unlink (name))
+      error (1, errno, "unlinking temp file");
+
+    if (write (fd, "01234567", BYTES) != BYTES)
+      error (1, errno, "writing to temp file");
+
+    cb0.aio_fildes = fd;
+    cb0.aio_offset = 0;
+    cb0.aio_buf = buff;
+    cb0.aio_nbytes = BYTES;
+    cb0.aio_reqprio = 0;
+    cb0.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+    r = aio_read (&cb0);
+    if (r != 0)
+      error (1, errno, "reading from file");
+
+    while (aio_error (&(cb0)) == EINPROGRESS)
+      usleep (10);
+
+    for (i = 0; i < BYTES; i++)
+      printf ("%c ", buff[i]);
+    printf ("\n");
+
+    /* At this point, the first read is completed, so start another one on
+       the read half of a pipe on which nothing will be written.  */
+    cb1.aio_fildes = piped[0];
+    cb1.aio_offset = 0;
+    cb1.aio_buf = buff;
+    cb1.aio_nbytes = BYTES;
+    cb1.aio_reqprio = 0;
+    cb1.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+    r = aio_read (&cb1);
+    if (r != 0)
+      error (1, errno, "reading from file");
+
+    /* Now call aio_suspend() with the two reads.  It should return
+     * immediately according to the POSIX spec.
+     */
+    list[0] = &cb0;
+    list[1] = &cb1;
+    timeout.tv_sec = 3;
+    timeout.tv_nsec = 0;
+    r = aio_suspend ((const struct aiocb * const *) list, ELEMS, &timeout);
+
+    if (r == -1 && errno == EAGAIN)
+      {
+	puts ("aio_suspend([done,blocked],2,3) suspended thread");
+	++result;
+      }
+
+    /* Note that CB1 is still pending, and so cannot be an auto variable.
+       Thus we also test that exiting with an outstanding request works.  */
+  }
+
+  return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-aio8.c b/REORG.TODO/rt/tst-aio8.c
new file mode 100644
index 0000000000..b03639dabd
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio8.c
@@ -0,0 +1,39 @@
+#include <aio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+static int
+do_test (void)
+{
+  int fd = open ("/dev/full", O_RDWR);
+  if (fd == -1)
+    {
+      puts ("could not open /dev/full");
+      return 0;
+    }
+
+  struct aiocb req;
+  req.aio_fildes = fd;
+  req.aio_lio_opcode = LIO_WRITE;
+  req.aio_reqprio = 0;
+  req.aio_buf = (void *) "hello";
+  req.aio_nbytes = 5;
+  req.aio_offset = 0;
+  req.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+  struct aiocb *list[1];
+  list[0] = &req;
+
+  int r = lio_listio (LIO_WAIT, list, 1, NULL);
+  int e = errno;
+
+  printf ("r = %d, e = %d (%s)\n", r, e, strerror (e));
+
+  return r != -1 || e != EIO;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-aio9.c b/REORG.TODO/rt/tst-aio9.c
new file mode 100644
index 0000000000..eab4f6859a
--- /dev/null
+++ b/REORG.TODO/rt/tst-aio9.c
@@ -0,0 +1,124 @@
+#include <aio.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <unistd.h>
+
+static pthread_barrier_t b;
+static pthread_t main_thread;
+static int flag;
+
+
+static void *
+tf (void *arg)
+{
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("child: barrier_wait failed");
+      exit (1);
+    }
+
+  /* There is unfortunately no other way to try to make sure the other
+     thread reached the aio_suspend call.  This test could fail on
+     highly loaded machines.  */
+  sleep (2);
+
+  pthread_kill (main_thread, SIGUSR1);
+
+  while (1)
+    sleep (1000);
+
+  return NULL;
+}
+
+
+static void
+sh (int sig)
+{
+  flag = 1;
+}
+
+
+static int
+do_test (void)
+{
+  main_thread = pthread_self ();
+
+  struct sigaction sa;
+
+  sa.sa_handler = sh;
+  sa.sa_flags = 0;
+  sigemptyset (&sa.sa_mask);
+
+  if (sigaction (SIGUSR1, &sa, NULL) != 0)
+    {
+      puts ("sigaction failed");
+      return 1;
+    }
+
+  if (pthread_barrier_init (&b, NULL, 2) != 0)
+    {
+      puts ("barrier_init");
+      return 1;
+    }
+
+  int fds[2];
+  if (pipe (fds) != 0)
+    {
+      puts ("pipe failed");
+      return 1;
+    }
+
+  char buf[42];
+  struct aiocb req;
+  req.aio_fildes = fds[0];
+  req.aio_reqprio = 0;
+  req.aio_offset = 0;
+  req.aio_buf = buf;
+  req.aio_nbytes = sizeof (buf);
+  req.aio_sigevent.sigev_notify = SIGEV_NONE;
+
+  if (aio_read (&req) != 0)
+    {
+      puts ("aio_read failed");
+      return 1;
+    }
+
+  pthread_t th;
+  if (pthread_create (&th, NULL, tf, NULL) != 0)
+    {
+      puts ("create failed");
+      return 1;
+    }
+
+  int e = pthread_barrier_wait (&b);
+  if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("parent: barrier_wait failed");
+      exit (1);
+    }
+
+  const struct aiocb *list[1];
+  list[0] = &req;
+
+  e = aio_suspend (list, 1, NULL);
+  if (e != -1)
+    {
+      puts ("aio_suspend succeeded");
+      return 1;
+    }
+  if (errno != EINTR)
+    {
+      puts ("aio_suspend did not return EINTR");
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#define TIMEOUT 5
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-clock.c b/REORG.TODO/rt/tst-clock.c
new file mode 100644
index 0000000000..05d9bb8c89
--- /dev/null
+++ b/REORG.TODO/rt/tst-clock.c
@@ -0,0 +1,124 @@
+/* Test program for POSIX clock_* functions.
+   Copyright (C) 2000-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <stdint.h>
+
+
+/* We want to see output immediately.  */
+#define STDOUT_UNBUFFERED
+
+/* We expect to run at least 10 seconds.  */
+#define TIMEOUT 15
+
+static int
+clock_test (clockid_t cl)
+{
+  struct timespec old_ts;
+  struct timespec ts;
+  struct timespec waitit;
+  int result = 0;
+  int i;
+
+  memset (&ts, '\0', sizeof ts);
+
+  waitit.tv_sec = 0;
+  waitit.tv_nsec = 500000000;
+
+  /* Get and print resolution of the clock.  */
+  if (clock_getres (cl, &ts) == 0)
+    {
+      if (ts.tv_nsec < 0 || ts.tv_nsec >= 1000000000)
+	{
+	  printf ("clock %d: nanosecond value of resolution wrong\n", cl);
+	  result = 1;
+	}
+      else
+	printf ("clock %d: resolution = %jd.%09jd secs\n",
+		cl, (intmax_t) ts.tv_sec, (intmax_t) ts.tv_nsec);
+    }
+  else
+    {
+      printf ("clock %d: cannot get resolution\n", cl);
+      result = 1;
+    }
+
+  memset (&ts, '\0', sizeof ts);
+  memset (&old_ts, '\0', sizeof old_ts);
+
+  /* Next get the current time value a few times.  */
+  for (i = 0; i < 10; ++i)
+    {
+      if (clock_gettime (cl, &ts) == 0)
+	{
+	  if (ts.tv_nsec < 0 || ts.tv_nsec >= 1000000000)
+	    {
+	      printf ("clock %d: nanosecond value of time wrong (try %d)\n",
+		      cl, i);
+	      result = 1;
+	    }
+	  else
+	    {
+	      printf ("clock %d: time = %jd.%09jd secs\n",
+		      cl, (intmax_t) ts.tv_sec, (intmax_t) ts.tv_nsec);
+
+	      if (memcmp (&ts, &old_ts, sizeof ts) == 0)
+		{
+		  printf ("clock %d: time hasn't changed (try %d)\n", cl, i);
+		  result = 1;
+
+		  old_ts = ts;
+		}
+	    }
+	}
+      else
+	{
+	  printf ("clock %d: cannot get time (try %d)\n", cl, i);
+	  result = 1;
+	}
+
+      /* Wait a bit before the next iteration.  */
+      nanosleep (&waitit, NULL);
+    }
+
+  return result;
+}
+
+static int
+do_test (void)
+{
+  clockid_t cl;
+  int result;
+
+  result = clock_test (CLOCK_REALTIME);
+
+  if (clock_getcpuclockid (0, &cl) == 0)
+    /* XXX It's not yet a bug when this fails.  */
+    clock_test (cl);
+  else
+	  printf("CPU clock unavailble, skipping test\n");
+
+  return result;
+}
+#define TEST_FUNCTION do_test ()
+
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-clock2.c b/REORG.TODO/rt/tst-clock2.c
new file mode 100644
index 0000000000..4c8fb9f247
--- /dev/null
+++ b/REORG.TODO/rt/tst-clock2.c
@@ -0,0 +1,43 @@
+/* Test setting the monotonic clock.  */
+
+#include <time.h>
+#include <unistd.h>
+
+#if defined CLOCK_MONOTONIC && defined _POSIX_MONOTONIC_CLOCK
+
+# include <errno.h>
+# include <stdio.h>
+
+static int
+do_test (void)
+{
+  if (sysconf (_SC_MONOTONIC_CLOCK) <= 0)
+    return 0;
+
+  struct timespec ts;
+  if (clock_gettime (CLOCK_MONOTONIC, &ts) != 0)
+    {
+      puts ("clock_gettime(CLOCK_MONOTONIC) failed");
+      return 1;
+    }
+
+  /* Setting the monotonic clock must fail.  */
+  if (clock_settime (CLOCK_MONOTONIC, &ts) != -1)
+    {
+      puts ("clock_settime(CLOCK_MONOTONIC) did not fail");
+      return 1;
+    }
+  if (errno != EINVAL)
+    {
+      printf ("clock_settime(CLOCK_MONOTONIC) set errno to %d, expected %d\n",
+	      errno, EINVAL);
+      return 1;
+    }
+  return 0;
+}
+# define TEST_FUNCTION do_test ()
+
+#else
+# define TEST_FUNCTION	0
+#endif
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-clock_nanosleep.c b/REORG.TODO/rt/tst-clock_nanosleep.c
new file mode 100644
index 0000000000..dba6f53ec3
--- /dev/null
+++ b/REORG.TODO/rt/tst-clock_nanosleep.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 2003-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <time.h>
+
+
+/* Test that clock_nanosleep() does sleep.  */
+static int
+do_test (void)
+{
+  /* Current time.  */
+  struct timeval tv1;
+  (void) gettimeofday (&tv1, NULL);
+
+  struct timespec ts;
+  ts.tv_sec = 1;
+  ts.tv_nsec = 0;
+  TEMP_FAILURE_RETRY (clock_nanosleep (CLOCK_REALTIME, 0, &ts, &ts));
+
+  /* At least one second must have passed.  */
+  struct timeval tv2;
+  (void) gettimeofday (&tv2, NULL);
+
+  tv2.tv_sec -= tv1.tv_sec;
+  tv2.tv_usec -= tv1.tv_usec;
+  if (tv2.tv_usec < 0)
+    --tv2.tv_sec;
+
+  if (tv2.tv_sec < 1)
+    {
+      puts ("clock_nanosleep didn't sleep long enough");
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-cpuclock1.c b/REORG.TODO/rt/tst-cpuclock1.c
new file mode 100644
index 0000000000..71bd695253
--- /dev/null
+++ b/REORG.TODO/rt/tst-cpuclock1.c
@@ -0,0 +1,321 @@
+/* Test program for process CPU clocks.
+   Copyright (C) 2004-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdint.h>
+#include <sys/wait.h>
+
+/* This function is intended to rack up both user and system time.  */
+static void
+chew_cpu (void)
+{
+  while (1)
+    {
+      static volatile char buf[4096];
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xaa;
+      int nullfd = open ("/dev/null", O_WRONLY);
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xbb;
+      write (nullfd, (char *) buf, sizeof buf);
+      close (nullfd);
+      if (getppid () == 1)
+	_exit (2);
+    }
+}
+
+static int
+do_test (void)
+{
+  int result = 0;
+  clockid_t cl;
+  int e;
+  pid_t dead_child, child;
+
+  /* Fork a child and let it die, to give us a PID known not be valid
+     (assuming PIDs don't wrap around during the test).  */
+  {
+    dead_child = fork ();
+    if (dead_child == 0)
+      _exit (0);
+    if (dead_child < 0)
+      {
+	perror ("fork");
+	return 1;
+      }
+    int x;
+    if (wait (&x) != dead_child)
+      {
+	perror ("wait");
+	return 2;
+      }
+  }
+
+  /* POSIX says we should get ESRCH for this.  */
+  e = clock_getcpuclockid (dead_child, &cl);
+  if (e != ENOSYS && e != ESRCH && e != EPERM)
+    {
+      printf ("clock_getcpuclockid on dead PID %d => %s\n",
+	      dead_child, strerror (e));
+      result = 1;
+    }
+
+  /* Now give us a live child eating up CPU time.  */
+  child = fork ();
+  if (child == 0)
+    {
+      chew_cpu ();
+      _exit (1);
+    }
+  if (child < 0)
+    {
+      perror ("fork");
+      return 1;
+    }
+
+  e = clock_getcpuclockid (child, &cl);
+  if (e == EPERM)
+    {
+      puts ("clock_getcpuclockid does not support other processes");
+      goto done;
+    }
+  if (e != 0)
+    {
+      printf ("clock_getcpuclockid on live PID %d => %s\n",
+	      child, strerror (e));
+      result = 1;
+      goto done;
+    }
+
+  const clockid_t child_clock = cl;
+  struct timespec res;
+  if (clock_getres (child_clock, &res) < 0)
+    {
+      printf ("clock_getres on live PID %d clock %lx => %s\n",
+	      child, (unsigned long int) child_clock, strerror (errno));
+      result = 1;
+      goto done;
+    }
+  printf ("live PID %d clock %lx resolution %ju.%.9ju\n",
+	  child, (unsigned long int) child_clock,
+	  (uintmax_t) res.tv_sec, (uintmax_t) res.tv_nsec);
+
+  struct timespec before, after;
+  if (clock_gettime (child_clock, &before) < 0)
+    {
+      printf ("clock_gettime on live PID %d clock %lx => %s\n",
+	      child, (unsigned long int) child_clock, strerror (errno));
+      result = 1;
+      goto done;
+    }
+  /* Should be close to 0.0.  */
+  printf ("live PID %d before sleep => %ju.%.9ju\n",
+	  child, (uintmax_t) before.tv_sec, (uintmax_t) before.tv_nsec);
+
+  struct timespec sleeptime = { .tv_nsec = 500000000 };
+  if (nanosleep (&sleeptime, NULL) != 0)
+    {
+      perror ("nanosleep");
+      result = 1;
+      goto done;
+    }
+
+  if (clock_gettime (child_clock, &after) < 0)
+    {
+      printf ("clock_gettime on live PID %d clock %lx => %s\n",
+	      child, (unsigned long int) child_clock, strerror (errno));
+      result = 1;
+      goto done;
+    }
+  /* Should be close to 0.5.  */
+  printf ("live PID %d after sleep => %ju.%.9ju\n",
+	  child, (uintmax_t) after.tv_sec, (uintmax_t) after.tv_nsec);
+
+  struct timespec diff = { .tv_sec = after.tv_sec - before.tv_sec,
+			   .tv_nsec = after.tv_nsec - before.tv_nsec };
+  if (diff.tv_nsec < 0)
+    {
+      --diff.tv_sec;
+      diff.tv_nsec += 1000000000;
+    }
+  if (diff.tv_sec != 0
+      || diff.tv_nsec > 600000000
+      || diff.tv_nsec < 100000000)
+    {
+      printf ("before - after %ju.%.9ju outside reasonable range\n",
+	      (uintmax_t) diff.tv_sec, (uintmax_t) diff.tv_nsec);
+      result = 1;
+    }
+
+  sleeptime.tv_nsec = 100000000;
+  e = clock_nanosleep (child_clock, 0, &sleeptime, NULL);
+  if (e == EINVAL || e == ENOTSUP || e == ENOSYS)
+    {
+      printf ("clock_nanosleep not supported for other process clock: %s\n",
+	      strerror (e));
+    }
+  else if (e != 0)
+    {
+      printf ("clock_nanosleep on other process clock: %s\n", strerror (e));
+      result = 1;
+    }
+  else
+    {
+      struct timespec afterns;
+      if (clock_gettime (child_clock, &afterns) < 0)
+	{
+	  printf ("clock_gettime on live PID %d clock %lx => %s\n",
+		  child, (unsigned long int) child_clock, strerror (errno));
+	  result = 1;
+	}
+      else
+	{
+	  struct timespec d = { .tv_sec = afterns.tv_sec - after.tv_sec,
+				.tv_nsec = afterns.tv_nsec - after.tv_nsec };
+	  if (d.tv_nsec < 0)
+	    {
+	      --d.tv_sec;
+	      d.tv_nsec += 1000000000;
+	    }
+	  if (d.tv_sec > 0
+	      || d.tv_nsec < sleeptime.tv_nsec
+	      || d.tv_nsec > sleeptime.tv_nsec * 2)
+	    {
+	      printf ("nanosleep time %ju.%.9ju outside reasonable range\n",
+		      (uintmax_t) d.tv_sec, (uintmax_t) d.tv_nsec);
+	      result = 1;
+	    }
+	}
+    }
+
+  if (kill (child, SIGKILL) != 0)
+    {
+      perror ("kill");
+      result = 2;
+      goto done;
+    }
+
+  /* Wait long enough to let the child finish dying.  */
+
+  sleeptime.tv_nsec = 200000000;
+  if (nanosleep (&sleeptime, NULL) != 0)
+    {
+      perror ("nanosleep");
+      result = 1;
+      goto done;
+    }
+
+  struct timespec dead;
+  if (clock_gettime (child_clock, &dead) < 0)
+    {
+      printf ("clock_gettime on dead PID %d clock %lx => %s\n",
+	      child, (unsigned long int) child_clock, strerror (errno));
+      result = 1;
+      goto done;
+    }
+  /* Should be close to 0.6.  */
+  printf ("dead PID %d => %ju.%.9ju\n",
+	  child, (uintmax_t) dead.tv_sec, (uintmax_t) dead.tv_nsec);
+
+  diff.tv_sec = dead.tv_sec - after.tv_sec;
+  diff.tv_nsec = dead.tv_nsec - after.tv_nsec;
+  if (diff.tv_nsec < 0)
+    {
+      --diff.tv_sec;
+      diff.tv_nsec += 1000000000;
+    }
+  if (diff.tv_sec != 0 || diff.tv_nsec > 200000000)
+    {
+      printf ("dead - after %ju.%.9ju outside reasonable range\n",
+	      (uintmax_t) diff.tv_sec, (uintmax_t) diff.tv_nsec);
+      result = 1;
+    }
+
+  /* Now reap the child and verify that its clock is no longer valid.  */
+  {
+    int x;
+    if (waitpid (child, &x, 0) != child)
+      {
+	perror ("waitpid");
+	result = 1;
+      }
+  }
+
+  if (clock_gettime (child_clock, &dead) == 0)
+    {
+      printf ("clock_gettime on reaped PID %d clock %lx => %ju%.9ju\n",
+	      child, (unsigned long int) child_clock,
+	      (uintmax_t) dead.tv_sec, (uintmax_t) dead.tv_nsec);
+      result = 1;
+    }
+  else
+    {
+      if (errno != EINVAL)
+	result = 1;
+      printf ("clock_gettime on reaped PID %d clock %lx => %s\n",
+	      child, (unsigned long int) child_clock, strerror (errno));
+    }
+
+  if (clock_getres (child_clock, &dead) == 0)
+    {
+      printf ("clock_getres on reaped PID %d clock %lx => %ju%.9ju\n",
+	      child, (unsigned long int) child_clock,
+	      (uintmax_t) dead.tv_sec, (uintmax_t) dead.tv_nsec);
+      result = 1;
+    }
+  else
+    {
+      if (errno != EINVAL)
+	result = 1;
+      printf ("clock_getres on reaped PID %d clock %lx => %s\n",
+	      child, (unsigned long int) child_clock, strerror (errno));
+    }
+
+  return result;
+
+ done:
+  {
+    if (kill (child, SIGKILL) != 0 && errno != ESRCH)
+      {
+	perror ("kill");
+	return 2;
+      }
+    int x;
+    if (waitpid (child, &x, 0) != child && errno != ECHILD)
+      {
+	perror ("waitpid");
+	return 2;
+      }
+  }
+
+  return result;
+}
+
+
+#define TIMEOUT 5
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-cpuclock2.c b/REORG.TODO/rt/tst-cpuclock2.c
new file mode 100644
index 0000000000..cf58a3f1dd
--- /dev/null
+++ b/REORG.TODO/rt/tst-cpuclock2.c
@@ -0,0 +1,337 @@
+/* Test program for process and thread CPU clocks.
+   Copyright (C) 2005-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <unistd.h>
+#include <stdint.h>
+
+#if (_POSIX_THREADS - 0) <= 0
+
+# define TEST_FUNCTION 0
+
+#else
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <fcntl.h>
+#include <string.h>
+#include <errno.h>
+#include <pthread.h>
+
+static pthread_barrier_t barrier;
+
+/* This function is intended to rack up both user and system time.  */
+static void *
+chew_cpu (void *arg)
+{
+  pthread_barrier_wait (&barrier);
+
+  while (1)
+    {
+      static volatile char buf[4096];
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xaa;
+      int nullfd = open ("/dev/null", O_WRONLY);
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xbb;
+      write (nullfd, (char *) buf, sizeof buf);
+      close (nullfd);
+    }
+
+  return NULL;
+}
+
+static unsigned long long int
+tsdiff (const struct timespec *before, const struct timespec *after)
+{
+  struct timespec diff = { .tv_sec = after->tv_sec - before->tv_sec,
+			   .tv_nsec = after->tv_nsec - before->tv_nsec };
+  while (diff.tv_nsec < 0)
+    {
+      --diff.tv_sec;
+      diff.tv_nsec += 1000000000;
+    }
+  return diff.tv_sec * 1000000000ULL + diff.tv_nsec;
+}
+
+static unsigned long long int
+test_nanosleep (clockid_t clock, const char *which,
+		const struct timespec *before, int *bad)
+{
+  const struct timespec sleeptime = { .tv_nsec = 100000000 };
+  int e = clock_nanosleep (clock, 0, &sleeptime, NULL);
+  if (e == EINVAL || e == ENOTSUP || e == ENOSYS)
+    {
+      printf ("clock_nanosleep not supported for %s CPU clock: %s\n",
+	      which, strerror (e));
+      return 0;
+    }
+  if (e != 0)
+    {
+      printf ("clock_nanosleep on %s CPU clock: %s\n", which, strerror (e));
+      *bad = 1;
+      return 0;
+    }
+
+  struct timespec after;
+  if (clock_gettime (clock, &after) < 0)
+    {
+      printf ("clock_gettime on %s CPU clock %lx => %s\n",
+	      which, (unsigned long int) clock, strerror (errno));
+      *bad = 1;
+      return 0;
+    }
+
+  unsigned long long int diff = tsdiff (before, &after);
+  if (diff < sleeptime.tv_nsec || diff > sleeptime.tv_nsec * 2)
+    {
+      printf ("clock_nanosleep on %s slept %llu (outside reasonable range)\n",
+	      which, diff);
+      *bad = 1;
+      return diff;
+    }
+
+  struct timespec sleeptimeabs = sleeptime;
+  sleeptimeabs.tv_sec += after.tv_sec;
+  sleeptimeabs.tv_nsec += after.tv_nsec;
+  while (sleeptimeabs.tv_nsec >= 1000000000)
+    {
+      ++sleeptimeabs.tv_sec;
+      sleeptimeabs.tv_nsec -= 1000000000;
+    }
+  e = clock_nanosleep (clock, TIMER_ABSTIME, &sleeptimeabs, NULL);
+  if (e != 0)
+    {
+      printf ("absolute clock_nanosleep on %s CPU clock: %s\n",
+	      which, strerror (e));
+      *bad = 1;
+      return diff;
+    }
+
+  struct timespec afterabs;
+  if (clock_gettime (clock, &afterabs) < 0)
+    {
+      printf ("clock_gettime on %s CPU clock %lx => %s\n",
+	      which, (unsigned long int) clock, strerror (errno));
+      *bad = 1;
+      return diff;
+    }
+
+  unsigned long long int sleepdiff = tsdiff (&sleeptimeabs, &afterabs);
+  if (sleepdiff > sleeptime.tv_nsec)
+    {
+      printf ("\
+absolute clock_nanosleep on %s %llu past target (outside reasonable range)\n",
+	      which, sleepdiff);
+      *bad = 1;
+    }
+
+  unsigned long long int diffabs = tsdiff (&after, &afterabs);
+  if (diffabs < sleeptime.tv_nsec || diffabs > sleeptime.tv_nsec * 2)
+    {
+      printf ("\
+absolute clock_nanosleep on %s slept %llu (outside reasonable range)\n",
+	      which, diffabs);
+      *bad = 1;
+    }
+
+  return diff + diffabs;
+}
+
+
+
+static int
+do_test (void)
+{
+  int result = 0;
+  clockid_t process_clock, th_clock, my_thread_clock;
+  int e;
+  pthread_t th;
+
+  e = clock_getcpuclockid (0, &process_clock);
+  if (e != 0)
+    {
+      printf ("clock_getcpuclockid on self => %s\n", strerror (e));
+      return 1;
+    }
+
+  e = pthread_getcpuclockid (pthread_self (), &my_thread_clock);
+  if (e != 0)
+    {
+      printf ("pthread_getcpuclockid on self => %s\n", strerror (e));
+      return 1;
+    }
+
+  /* This is a kludge.  This test fails if the semantics of thread and
+     process clocks are wrong.  The old code using hp-timing without kernel
+     support has bogus semantics if there are context switches.  We don't
+     fail to report failure when the proper functionality is not available
+     in the kernel.  It so happens that Linux kernels without correct CPU
+     clock support also lack CPU timer support, so we use use that to guess
+     that we are using the bogus code and not test it.  */
+  timer_t t;
+  if (timer_create (my_thread_clock, NULL, &t) != 0)
+    {
+      printf ("timer_create: %m\n");
+      puts ("No support for CPU clocks with good semantics, skipping test");
+      return 0;
+    }
+  timer_delete (t);
+
+
+  pthread_barrier_init (&barrier, NULL, 2);
+
+  e = pthread_create (&th, NULL, chew_cpu, NULL);
+  if (e != 0)
+    {
+      printf ("pthread_create: %s\n", strerror (e));
+      return 1;
+    }
+
+  e = pthread_getcpuclockid (th, &th_clock);
+  if (e == ENOENT || e == ENOSYS || e == ENOTSUP)
+    {
+      puts ("pthread_getcpuclockid does not support other threads");
+      return 1;
+    }
+
+  pthread_barrier_wait (&barrier);
+
+  struct timespec res;
+  if (clock_getres (th_clock, &res) < 0)
+    {
+      printf ("clock_getres on live thread clock %lx => %s\n",
+	      (unsigned long int) th_clock, strerror (errno));
+      result = 1;
+      return 1;
+    }
+  printf ("live thread clock %lx resolution %ju.%.9ju\n",
+	  (unsigned long int) th_clock,
+	  (uintmax_t) res.tv_sec, (uintmax_t) res.tv_nsec);
+
+  struct timespec process_before, process_after;
+  if (clock_gettime (process_clock, &process_before) < 0)
+    {
+      printf ("clock_gettime on process clock %lx => %s\n",
+	      (unsigned long int) process_clock, strerror (errno));
+      return 1;
+    }
+
+  struct timespec before, after;
+  if (clock_gettime (th_clock, &before) < 0)
+    {
+      printf ("clock_gettime on live thread clock %lx => %s\n",
+	      (unsigned long int) th_clock, strerror (errno));
+      return 1;
+    }
+  printf ("live thread before sleep => %ju.%.9ju\n",
+	  (uintmax_t) before.tv_sec, (uintmax_t) before.tv_nsec);
+
+  struct timespec me_before, me_after;
+  if (clock_gettime (my_thread_clock, &me_before) < 0)
+    {
+      printf ("clock_gettime on self thread clock %lx => %s\n",
+	      (unsigned long int) my_thread_clock, strerror (errno));
+      return 1;
+    }
+  printf ("self thread before sleep => %ju.%.9ju\n",
+	  (uintmax_t) me_before.tv_sec, (uintmax_t) me_before.tv_nsec);
+
+  struct timespec sleeptime = { .tv_nsec = 500000000 };
+  if (nanosleep (&sleeptime, NULL) != 0)
+    {
+      perror ("nanosleep");
+      return 1;
+    }
+
+  if (clock_gettime (th_clock, &after) < 0)
+    {
+      printf ("clock_gettime on live thread clock %lx => %s\n",
+	      (unsigned long int) th_clock, strerror (errno));
+      return 1;
+    }
+  printf ("live thread after sleep => %ju.%.9ju\n",
+	  (uintmax_t) after.tv_sec, (uintmax_t) after.tv_nsec);
+
+  if (clock_gettime (process_clock, &process_after) < 0)
+    {
+      printf ("clock_gettime on process clock %lx => %s\n",
+	      (unsigned long int) process_clock, strerror (errno));
+      return 1;
+    }
+
+  if (clock_gettime (my_thread_clock, &me_after) < 0)
+    {
+      printf ("clock_gettime on self thread clock %lx => %s\n",
+	      (unsigned long int) my_thread_clock, strerror (errno));
+      return 1;
+    }
+  printf ("self thread after sleep => %ju.%.9ju\n",
+	  (uintmax_t) me_after.tv_sec, (uintmax_t) me_after.tv_nsec);
+
+  unsigned long long int th_diff = tsdiff (&before, &after);
+  unsigned long long int pdiff = tsdiff (&process_before, &process_after);
+  unsigned long long int my_diff = tsdiff (&me_before, &me_after);
+
+  if (th_diff < 100000000 || th_diff > 600000000)
+    {
+      printf ("live thread before - after %llu outside reasonable range\n",
+	      th_diff);
+      result = 1;
+    }
+
+  if (my_diff > 100000000)
+    {
+      printf ("self thread before - after %llu outside reasonable range\n",
+	      my_diff);
+      result = 1;
+    }
+
+  if (pdiff < th_diff)
+    {
+      printf ("process before - after %llu outside reasonable range (%llu)\n",
+	      pdiff, th_diff);
+      result = 1;
+    }
+
+  process_after.tv_nsec += test_nanosleep (th_clock, "live thread",
+					   &after, &result);
+  process_after.tv_nsec += test_nanosleep (process_clock, "process",
+					   &process_after, &result);
+  test_nanosleep (CLOCK_PROCESS_CPUTIME_ID,
+		  "PROCESS_CPUTIME_ID", &process_after, &result);
+
+  pthread_cancel (th);
+
+  e = clock_nanosleep (CLOCK_THREAD_CPUTIME_ID, 0, &sleeptime, NULL);
+  if (e != EINVAL)
+    {
+      printf ("clock_nanosleep CLOCK_THREAD_CPUTIME_ID: %s\n",
+	      strerror (e));
+      result = 1;
+    }
+
+  return result;
+}
+# define TIMEOUT 8
+# define TEST_FUNCTION do_test ()
+#endif
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-cputimer1.c b/REORG.TODO/rt/tst-cputimer1.c
new file mode 100644
index 0000000000..8f5dd76cf2
--- /dev/null
+++ b/REORG.TODO/rt/tst-cputimer1.c
@@ -0,0 +1,68 @@
+/* Tests for POSIX timer implementation using process CPU clock.  */
+
+#include <unistd.h>
+
+#if _POSIX_THREADS && defined _POSIX_CPUTIME
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <time.h>
+#include <pthread.h>
+
+#define TEST_CLOCK CLOCK_PROCESS_CPUTIME_ID
+#define TEST_CLOCK_MISSING(clock) \
+  (setup_test () ? "process CPU clock timer support" : NULL)
+
+/* This function is intended to rack up both user and system time.  */
+static void *
+chew_cpu (void *arg)
+{
+  while (1)
+    {
+      static volatile char buf[4096];
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xaa;
+      int nullfd = open ("/dev/null", O_WRONLY);
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xbb;
+      write (nullfd, (char *) buf, sizeof buf);
+      close (nullfd);
+    }
+
+  return NULL;
+}
+
+static int
+setup_test (void)
+{
+  /* Test timers on our own process CPU clock by having a worker thread
+     eating CPU.  First make sure we can make such timers at all.  */
+
+  timer_t t;
+  if (timer_create (TEST_CLOCK, NULL, &t) != 0)
+    {
+      printf ("timer_create: %m\n");
+      return 1;
+    }
+  timer_delete (t);
+
+  pthread_t th;
+  int e = pthread_create (&th, NULL, chew_cpu, NULL);
+  if (e != 0)
+    {
+      printf ("pthread_create: %s\n", strerror (e));
+      exit (1);
+    }
+
+  return 0;
+}
+
+#else
+# define TEST_CLOCK_MISSING(clock) "process clocks"
+#endif
+
+#include "tst-timer4.c"
diff --git a/REORG.TODO/rt/tst-cputimer2.c b/REORG.TODO/rt/tst-cputimer2.c
new file mode 100644
index 0000000000..397d7998c0
--- /dev/null
+++ b/REORG.TODO/rt/tst-cputimer2.c
@@ -0,0 +1,83 @@
+/* Tests for POSIX timer implementation using thread CPU clock.  */
+
+#include <unistd.h>
+
+#if _POSIX_THREADS && defined _POSIX_CPUTIME
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <time.h>
+#include <pthread.h>
+
+static clockid_t worker_thread_clock;
+
+#define TEST_CLOCK worker_thread_clock
+#define TEST_CLOCK_MISSING(clock) \
+  (setup_test () ? "thread CPU clock timer support" : NULL)
+
+/* This function is intended to rack up both user and system time.  */
+static void *
+chew_cpu (void *arg)
+{
+  while (1)
+    {
+      static volatile char buf[4096];
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xaa;
+      int nullfd = open ("/dev/null", O_WRONLY);
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xbb;
+      write (nullfd, (char *) buf, sizeof buf);
+      close (nullfd);
+    }
+
+  return NULL;
+}
+
+static int
+setup_test (void)
+{
+  /* Test timers on a thread CPU clock by having a worker thread eating
+     CPU.  First make sure we can make such timers at all.  */
+
+  pthread_t th;
+  int e = pthread_create (&th, NULL, chew_cpu, NULL);
+  if (e != 0)
+    {
+      printf ("pthread_create: %s\n", strerror (e));
+      exit (1);
+    }
+
+  e = pthread_getcpuclockid (th, &worker_thread_clock);
+  if (e == EPERM || e == ENOENT || e == ENOTSUP)
+    {
+      puts ("pthread_getcpuclockid does not support other threads");
+      return 1;
+    }
+  if (e != 0)
+    {
+      printf ("pthread_getcpuclockid: %s\n", strerror (e));
+      exit (1);
+    }
+
+  timer_t t;
+  if (timer_create (TEST_CLOCK, NULL, &t) != 0)
+    {
+      printf ("timer_create: %m\n");
+      return 1;
+    }
+  timer_delete (t);
+
+  return 0;
+}
+
+#else
+# define TEST_CLOCK_MISSING(clock) "process clocks"
+#endif
+
+#include "tst-timer4.c"
diff --git a/REORG.TODO/rt/tst-cputimer3.c b/REORG.TODO/rt/tst-cputimer3.c
new file mode 100644
index 0000000000..056766a377
--- /dev/null
+++ b/REORG.TODO/rt/tst-cputimer3.c
@@ -0,0 +1,130 @@
+/* Tests for POSIX timer implementation using another process's CPU clock.  */
+
+#include <unistd.h>
+
+#if _POSIX_THREADS && defined _POSIX_CPUTIME
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <time.h>
+#include <signal.h>
+#include <sys/wait.h>
+
+static clockid_t child_clock;
+
+#define TEST_CLOCK child_clock
+#define TEST_CLOCK_MISSING(clock) \
+  (setup_test () ? "other-process CPU clock timer support" : NULL)
+
+/* This function is intended to rack up both user and system time.  */
+static void
+chew_cpu (void)
+{
+  while (1)
+    {
+      static volatile char buf[4096];
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xaa;
+      int nullfd = open ("/dev/null", O_WRONLY);
+      for (int i = 0; i < 100; ++i)
+	for (size_t j = 0; j < sizeof buf; ++j)
+	  buf[j] = 0xbb;
+      write (nullfd, (char *) buf, sizeof buf);
+      close (nullfd);
+      if (getppid () == 1)
+	_exit (2);
+    }
+}
+
+static pid_t child;
+static void
+cleanup_child (void)
+{
+  if (child <= 0)
+    return;
+  if (kill (child, SIGKILL) < 0 && errno != ESRCH)
+    printf ("cannot kill child %d: %m\n", child);
+  else
+    {
+      int status;
+      errno = 0;
+      if (waitpid (child, &status, 0) != child)
+	printf ("waitpid %d: %m\n", child);
+    }
+}
+#define CLEANUP_HANDLER cleanup_child ()
+
+static int
+setup_test (void)
+{
+  /* Test timers on a process CPU clock by having a child process eating
+     CPU.  First make sure we can make such timers at all.  */
+
+  int pipefd[2];
+  if (pipe (pipefd) < 0)
+    {
+      printf ("pipe: %m\n");
+      exit (1);
+    }
+
+  child = fork ();
+
+  if (child == 0)
+    {
+      char c;
+      close (pipefd[1]);
+      if (read (pipefd[0], &c, 1) == 1)
+	chew_cpu ();
+      _exit (1);
+    }
+
+  if (child < 0)
+    {
+      printf ("fork: %m\n");
+      exit (1);
+    }
+
+  atexit (&cleanup_child);
+
+  close (pipefd[0]);
+
+  int e = clock_getcpuclockid (child, &child_clock);
+  if (e == EPERM)
+    {
+      puts ("clock_getcpuclockid does not support other processes");
+      return 1;
+    }
+  if (e != 0)
+    {
+      printf ("clock_getcpuclockid: %s\n", strerror (e));
+      exit (1);
+    }
+
+  timer_t t;
+  if (timer_create (TEST_CLOCK, NULL, &t) != 0)
+    {
+      printf ("timer_create: %m\n");
+      return 1;
+    }
+  timer_delete (t);
+
+  /* Get the child started chewing.  */
+  if (write (pipefd[1], "x", 1) != 1)
+    {
+      printf ("write to pipe: %m\n");
+      return 1;
+    }
+  close (pipefd[1]);
+
+  return 0;
+}
+
+#else
+# define TEST_CLOCK_MISSING(clock) "process clocks"
+#endif
+
+#include "tst-timer4.c"
diff --git a/REORG.TODO/rt/tst-mqueue.h b/REORG.TODO/rt/tst-mqueue.h
new file mode 100644
index 0000000000..7bf446b546
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue.h
@@ -0,0 +1,83 @@
+/* Common code for message queue passing tests.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <mqueue.h>
+#include <search.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/uio.h>
+#include <unistd.h>
+
+static int temp_mq_fd;
+
+/* Add temporary files in list.  */
+static void
+__attribute__ ((unused))
+add_temp_mq (const char *name)
+{
+  struct iovec iov[2];
+  iov[0].iov_base = (char *) name;
+  iov[0].iov_len = strlen (name);
+  iov[1].iov_base = (char *) "\n";
+  iov[1].iov_len = 1;
+  if (writev (temp_mq_fd, iov, 2) != iov[0].iov_len + 1)
+    printf ("Could not record temp mq filename %s\n", name);
+}
+
+/* Delete all temporary message queues.  */
+static void
+do_cleanup (void)
+{
+  if (lseek (temp_mq_fd, 0, SEEK_SET) != 0)
+    return;
+
+  FILE *f = fdopen (temp_mq_fd, "r");
+  if (f == NULL)
+    return;
+
+  char *line = NULL;
+  size_t n = 0;
+  ssize_t rets;
+  while ((rets = getline (&line, &n, f)) > 0)
+    {
+      if (line[rets - 1] != '\n')
+        continue;
+
+      line[rets - 1] = '\0';
+      mq_unlink (line);
+    }
+  fclose (f);
+}
+
+static void
+do_prepare (void)
+{
+  char name [] = "/tmp/tst-mqueueN.XXXXXX";
+  temp_mq_fd = mkstemp (name);
+  if (temp_mq_fd == -1)
+    {
+      printf ("Could not create temporary file %s: %m\n", name);
+      exit (1);
+    }
+  unlink (name);
+}
+
+#define PREPARE(argc, argv) do_prepare ()
+#define CLEANUP_HANDLER	do_cleanup ()
diff --git a/REORG.TODO/rt/tst-mqueue1.c b/REORG.TODO/rt/tst-mqueue1.c
new file mode 100644
index 0000000000..feb88c8350
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue1.c
@@ -0,0 +1,418 @@
+/* Test message queue passing.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include <stdint.h>
+#include "tst-mqueue.h"
+
+static int
+intcmp (const void *a, const void *b)
+{
+  if (*(unsigned char *)a < *(unsigned char *)b)
+    return 1;
+  if (*(unsigned char *)a > *(unsigned char *)b)
+    return -1;
+  return 0;
+}
+
+static int
+check_attrs (struct mq_attr *attr, int nonblock, long cnt)
+{
+  int result = 0;
+
+  if (attr->mq_maxmsg != 10 || attr->mq_msgsize != 1)
+    {
+      printf ("attributes don't match those passed to mq_open\n"
+	      "mq_maxmsg %jd, mq_msgsize %jd\n",
+	      (intmax_t) attr->mq_maxmsg, (intmax_t) attr->mq_msgsize);
+      result = 1;
+    }
+
+  if ((attr->mq_flags & O_NONBLOCK) != nonblock)
+    {
+      printf ("mq_flags %jx != %x\n",
+	      (intmax_t) (attr->mq_flags & O_NONBLOCK), nonblock);
+      result = 1;
+    }
+
+  if (attr->mq_curmsgs != cnt)
+    {
+      printf ("mq_curmsgs %jd != %ld\n", (intmax_t) attr->mq_curmsgs, cnt);
+      result = 1;
+    }
+
+  return result;
+}
+
+static int
+do_one_test (mqd_t q, const char *name, int nonblock)
+{
+  int result = 0;
+
+  unsigned char v []
+    = { 0x32, 0x62, 0x22, 0x31, 0x11, 0x73, 0x61, 0x21, 0x72, 0x71, 0x81 };
+
+  struct mq_attr attr;
+  memset (&attr, 0xaa, sizeof (attr));
+  if (mq_getattr (q, &attr) != 0)
+    {
+      printf ("mq_getattr failed: %m\n");
+      result = 1;
+    }
+  else
+    result |= check_attrs (&attr, nonblock, 0);
+
+  if (mq_receive (q, (char *) &v[0], 1, NULL) != -1)
+    {
+      puts ("mq_receive on O_WRONLY mqd_t unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("mq_receive on O_WRONLY mqd_t did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  struct timespec ts;
+  if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
+    --ts.tv_sec;
+  else
+    {
+      ts.tv_sec = time (NULL) - 1;
+      ts.tv_nsec = 0;
+    }
+
+  int ret;
+  for (int i = 0; i < 10; ++i)
+    {
+      if (i & 1)
+	ret = mq_send (q, (char *) &v[i], 1, v[i] >> 4);
+      else
+	ret = mq_timedsend (q, (char *) &v[i], 1, v[i] >> 4, &ts);
+
+      if (ret)
+	{
+	  printf ("mq_%ssend failed: %m\n", (i & 1) ? "" : "timed");
+	  result = 1;
+	}
+    }
+
+  ret = mq_timedsend (q, (char *) &v[10], 1, 8, &ts);
+  if (ret != -1)
+    {
+      puts ("mq_timedsend on full queue did not fail");
+      result = 1;
+    }
+  else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
+    {
+      printf ("mq_timedsend on full queue did not fail with %s: %m\n",
+	      nonblock ? "EAGAIN" : "ETIMEDOUT");
+      result = 1;
+    }
+
+  if (nonblock)
+    {
+      ret = mq_send (q, (char *) &v[10], 1, 8);
+      if (ret != -1)
+	{
+	  puts ("mq_send on full non-blocking queue did not fail");
+	  result = 1;
+	}
+      else if (errno != EAGAIN)
+	{
+	  printf ("mq_send on full non-blocking queue did not fail"
+		  "with EAGAIN: %m\n");
+	  result = 1;
+	}
+    }
+
+  memset (&attr, 0xaa, sizeof (attr));
+  if (mq_getattr (q, &attr) != 0)
+    {
+      printf ("mq_getattr failed: %m\n");
+      result = 1;
+    }
+  else
+    result |= check_attrs (&attr, nonblock, 10);
+
+  pid_t pid = fork ();
+  if (pid == -1)
+    {
+      printf ("fork failed: %m\n");
+      result = 1;
+    }
+  else if (pid == 0)
+    {
+      result = 0;
+
+      if (mq_close (q) != 0)
+	{
+	  printf ("mq_close in child failed: %m\n");
+	  result = 1;
+	}
+
+      q = mq_open (name, O_RDONLY | nonblock);
+      if (q == (mqd_t) -1)
+        {
+	  printf ("mq_open in child failed: %m\n");
+	  exit (1);
+        }
+
+      memset (&attr, 0xaa, sizeof (attr));
+      if (mq_getattr (q, &attr) != 0)
+	{
+	  printf ("mq_getattr failed: %m\n");
+	  result = 1;
+	}
+      else
+	result |= check_attrs (&attr, nonblock, 10);
+
+      unsigned char vr[11] = { };
+      unsigned int prio;
+      ssize_t rets;
+
+      if (mq_send (q, (char *) &v[0], 1, 1) != -1)
+	{
+	  puts ("mq_send on O_RDONLY mqd_t unexpectedly succeeded");
+	  result = 1;
+	}
+      else if (errno != EBADF)
+	{
+	  printf ("mq_send on O_WRONLY mqd_t did not fail with EBADF: %m\n");
+	  result = 1;
+	}
+
+      for (int i = 0; i < 10; ++i)
+	{
+	  if (i & 1)
+	    rets = mq_receive (q, (char *) &vr[i], 1, &prio);
+	  else
+	    rets = mq_timedreceive (q, (char *) &vr[i], 1, &prio, &ts);
+
+	  if (rets != 1)
+	    {
+	      if (rets == -1)
+		printf ("mq_%sreceive failed: %m\n", (i & 1) ? "" : "timed");
+	      else
+		printf ("mq_%sreceive returned %zd != 1\n",
+			(i & 1) ? "" : "timed", rets);
+	      result = 1;
+	    }
+	  else if (prio != (unsigned int) vr[i] >> 4)
+	    {
+	      printf ("unexpected priority %x for value %02x\n", prio,
+		      vr[i]);
+	      result = 1;
+	    }
+	}
+
+      qsort (v, 10, 1, intcmp);
+      if (memcmp (v, vr, 10) != 0)
+	{
+	  puts ("messages not received in expected order");
+	  result = 1;
+	}
+
+      rets = mq_timedreceive (q, (char *) &vr[10], 1, &prio, &ts);
+      if (rets != -1)
+	{
+	  puts ("mq_timedreceive on empty queue did not fail");
+	  result = 1;
+	}
+      else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
+	{
+	  printf ("mq_timedreceive on empty queue did not fail with %s: %m\n",
+		  nonblock ? "EAGAIN" : "ETIMEDOUT");
+	  result = 1;
+	}
+
+      if (nonblock)
+	{
+	  ret = mq_receive (q, (char *) &vr[10], 1, &prio);
+	  if (ret != -1)
+	    {
+	      puts ("mq_receive on empty non-blocking queue did not fail");
+	      result = 1;
+	    }
+	  else if (errno != EAGAIN)
+	    {
+	      printf ("mq_receive on empty non-blocking queue did not fail"
+		      "with EAGAIN: %m\n");
+	      result = 1;
+	    }
+	}
+
+      memset (&attr, 0xaa, sizeof (attr));
+      if (mq_getattr (q, &attr) != 0)
+	{
+	  printf ("mq_getattr failed: %m\n");
+	  result = 1;
+	}
+      else
+	result |= check_attrs (&attr, nonblock, 0);
+
+      if (mq_close (q) != 0)
+	{
+	  printf ("mq_close in child failed: %m\n");
+	  result = 1;
+	}
+
+      exit (result);
+    }
+
+  int status;
+  if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
+    {
+      printf ("waitpid failed: %m\n");
+      kill (pid, SIGKILL);
+      result = 1;
+    }
+  else if (!WIFEXITED (status) || WEXITSTATUS (status))
+    {
+      printf ("child failed: %d\n", status);
+      result = 1;
+    }
+
+  memset (&attr, 0xaa, sizeof (attr));
+  if (mq_getattr (q, &attr) != 0)
+    {
+      printf ("mq_getattr failed: %m\n");
+      result = 1;
+    }
+  else
+    result |= check_attrs (&attr, nonblock, 0);
+
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  int result = 0;
+
+  char name[sizeof "/tst-mqueue1-" + sizeof (pid_t) * 3];
+  snprintf (name, sizeof (name), "/tst-mqueue1-%u", getpid ());
+
+  struct mq_attr attr = { .mq_maxmsg = 10, .mq_msgsize = 1 };
+  mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_WRONLY, 0600, &attr);
+
+  if (q == (mqd_t) -1)
+    {
+      printf ("mq_open failed with: %m\n");
+      return result;
+    }
+  else
+    add_temp_mq (name);
+
+  result |= do_one_test (q, name, 0);
+
+  mqd_t q2 = mq_open (name, O_WRONLY | O_NONBLOCK);
+  if (q2 == (mqd_t) -1)
+    {
+      printf ("mq_open failed with: %m\n");
+      q2 = q;
+      result = 1;
+    }
+  else
+    {
+      if (mq_close (q) != 0)
+	{
+	  printf ("mq_close in parent failed: %m\n");
+	  result = 1;
+	}
+
+      q = q2;
+      result |= do_one_test (q, name, O_NONBLOCK);
+
+      if (mq_getattr (q, &attr) != 0)
+	{
+	  printf ("mq_getattr failed: %m\n");
+	  result = 1;
+	}
+      else
+	{
+	  attr.mq_flags ^= O_NONBLOCK;
+
+	  struct mq_attr attr2;
+	  memset (&attr2, 0x55, sizeof (attr2));
+	  if (mq_setattr (q, &attr, &attr2) != 0)
+	    {
+	      printf ("mq_setattr failed: %m\n");
+	      result = 1;
+	    }
+	  else if (attr.mq_flags != (attr2.mq_flags ^ O_NONBLOCK)
+		   || attr.mq_maxmsg != attr2.mq_maxmsg
+		   || attr.mq_msgsize != attr2.mq_msgsize
+		   || attr.mq_curmsgs != 0
+		   || attr2.mq_curmsgs != 0)
+	    {
+	      puts ("mq_setattr returned unexpected values in *omqstat");
+	      result = 1;
+	    }
+	  else
+	    {
+	      result |= do_one_test (q, name, 0);
+
+	      if (mq_setattr (q, &attr2, NULL) != 0)
+		{
+		  printf ("mq_setattr failed: %m\n");
+		  result = 1;
+		}
+	      else
+		result |= do_one_test (q, name, O_NONBLOCK);
+	    }
+	}
+    }
+
+  if (mq_unlink (name) != 0)
+    {
+      printf ("mq_unlink failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q) != 0)
+    {
+      printf ("mq_close in parent failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q) != -1)
+    {
+      puts ("second mq_close did not fail");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("second mq_close did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-mqueue2.c b/REORG.TODO/rt/tst-mqueue2.c
new file mode 100644
index 0000000000..357dcdffef
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue2.c
@@ -0,0 +1,476 @@
+/* Test message queue passing.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include "tst-mqueue.h"
+
+static void
+alrm_handler (int sig)
+{
+}
+
+#define TIMEOUT 10
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  int result = 0;
+
+  char name[sizeof "/tst-mqueue2-" + sizeof (pid_t) * 3];
+  snprintf (name, sizeof (name), "/tst-mqueue2-%u", getpid ());
+
+  struct mq_attr attr = { .mq_maxmsg = 2, .mq_msgsize = 2 };
+  mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+
+  if (q == (mqd_t) -1)
+    {
+      printf ("mq_open failed with: %m\n");
+      return result;
+    }
+  else
+    add_temp_mq (name);
+
+  mqd_t q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+  if (q2 != (mqd_t) -1)
+    {
+      puts ("mq_open with O_EXCL unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EEXIST)
+    {
+      printf ("mq_open did not fail with EEXIST: %m\n");
+      result = 1;
+    }
+
+  char name2[sizeof "/tst-mqueue2-2-" + sizeof (pid_t) * 3];
+  snprintf (name2, sizeof (name2), "/tst-mqueue2-2-%u", getpid ());
+
+  attr.mq_maxmsg = -2;
+  q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+  if (q2 != (mqd_t) -1)
+    {
+      puts ("mq_open with invalid mq_maxmsg unexpectedly succeeded");
+      add_temp_mq (name2);
+      result = 1;
+    }
+  else if (errno != EINVAL)
+    {
+      printf ("mq_open with invalid mq_maxmsg did not fail with "
+	      "EINVAL: %m\n");
+      result = 1;
+    }
+
+  attr.mq_maxmsg = 2;
+  attr.mq_msgsize = -56;
+  q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+  if (q2 != (mqd_t) -1)
+    {
+      puts ("mq_open with invalid mq_msgsize unexpectedly succeeded");
+      add_temp_mq (name2);
+      result = 1;
+    }
+  else if (errno != EINVAL)
+    {
+      printf ("mq_open with invalid mq_msgsize did not fail with "
+	      "EINVAL: %m\n");
+      result = 1;
+    }
+
+  char buf[3];
+  struct timespec ts;
+  if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
+    ts.tv_sec += 10;
+  else
+    {
+      ts.tv_sec = time (NULL) + 10;
+      ts.tv_nsec = 0;
+    }
+
+  if (mq_timedreceive (q, buf, 1, NULL, &ts) == 0)
+    {
+      puts ("mq_timedreceive with too small msg_len did not fail");
+      result = 1;
+    }
+  else if (errno != EMSGSIZE)
+    {
+      printf ("mq_timedreceive with too small msg_len did not fail with "
+	      "EMSGSIZE: %m\n");
+      result = 1;
+    }
+
+  ts.tv_nsec = -1;
+  if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
+    {
+      puts ("mq_timedreceive with negative tv_nsec did not fail");
+      result = 1;
+    }
+  else if (errno != EINVAL)
+    {
+      printf ("mq_timedreceive with negative tv_nsec did not fail with "
+	      "EINVAL: %m\n");
+      result = 1;
+    }
+
+  ts.tv_nsec = 1000000000;
+  if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
+    {
+      puts ("mq_timedreceive with tv_nsec >= 1000000000 did not fail");
+      result = 1;
+    }
+  else if (errno != EINVAL)
+    {
+      printf ("mq_timedreceive with tv_nsec >= 1000000000 did not fail with "
+	      "EINVAL: %m\n");
+      result = 1;
+    }
+
+  struct sigaction sa = { .sa_handler = alrm_handler, .sa_flags = 0 };
+  sigemptyset (&sa.sa_mask);
+  sigaction (SIGALRM, &sa, NULL);
+
+  struct itimerval it = { .it_value = { .tv_sec = 1 } };
+  setitimer (ITIMER_REAL, &it, NULL);
+
+  if (mq_receive (q, buf, 2, NULL) == 0)
+    {
+      puts ("mq_receive on empty queue did not block");
+      result = 1;
+    }
+  else if (errno != EINTR)
+    {
+      printf ("mq_receive on empty queue did not fail with EINTR: %m\n");
+      result = 1;
+    }
+
+  setitimer (ITIMER_REAL, &it, NULL);
+
+  ts.tv_nsec = 0;
+  if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
+    {
+      puts ("mq_timedreceive on empty queue did not block");
+      result = 1;
+    }
+  else if (errno != EINTR)
+    {
+      printf ("mq_timedreceive on empty queue did not fail with EINTR: %m\n");
+      result = 1;
+    }
+
+  buf[0] = '6';
+  buf[1] = '7';
+  if (mq_send (q, buf, 2, 3) != 0
+      || (buf[0] = '8', mq_send (q, buf, 1, 4) != 0))
+    {
+      printf ("mq_send failed: %m\n");
+      result = 1;
+    }
+
+  memset (buf, ' ', sizeof (buf));
+
+  unsigned int prio;
+  ssize_t rets = mq_receive (q, buf, 3, &prio);
+  if (rets != 1)
+    {
+      if (rets == -1)
+	printf ("mq_receive failed: %m\n");
+      else
+	printf ("mq_receive returned %zd != 1\n", rets);
+      result = 1;
+    }
+  else if (prio != 4 || memcmp (buf, "8  ", 3) != 0)
+    {
+      printf ("mq_receive prio %u (4) buf \"%c%c%c\" (\"8  \")\n",
+	      prio, buf[0], buf[1], buf[2]);
+      result = 1;
+    }
+
+  rets = mq_receive (q, buf, 2, NULL);
+  if (rets != 2)
+    {
+      if (rets == -1)
+	printf ("mq_receive failed: %m\n");
+      else
+	printf ("mq_receive returned %zd != 2\n", rets);
+      result = 1;
+    }
+  else if (memcmp (buf, "67 ", 3) != 0)
+    {
+      printf ("mq_receive buf \"%c%c%c\" != \"67 \"\n",
+	      buf[0], buf[1], buf[2]);
+      result = 1;
+    }
+
+  buf[0] = '2';
+  buf[1] = '1';
+  if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
+    ts.tv_sec = time (NULL);
+  ts.tv_nsec = -1000000001;
+  if ((mq_timedsend (q, buf, 2, 5, &ts) != 0
+       && (errno != EINVAL || mq_send (q, buf, 2, 5) != 0))
+      || (buf[0] = '3', ts.tv_nsec = -ts.tv_nsec,
+	  (mq_timedsend (q, buf, 1, 4, &ts) != 0
+	   && (errno != EINVAL || mq_send (q, buf, 1, 4) != 0))))
+    {
+      printf ("mq_timedsend failed: %m\n");
+      result = 1;
+    }
+
+  buf[0] = '-';
+  ts.tv_nsec = 1000000001;
+  if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
+    {
+      puts ("mq_timedsend with tv_nsec >= 1000000000 did not fail");
+      result = 1;
+    }
+  else if (errno != EINVAL)
+    {
+      printf ("mq_timedsend with tv_nsec >= 1000000000 did not fail with "
+	      "EINVAL: %m\n");
+      result = 1;
+    }
+
+  ts.tv_nsec = -2;
+  if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
+    {
+      puts ("mq_timedsend with negative tv_nsec did not fail");
+      result = 1;
+    }
+  else if (errno != EINVAL)
+    {
+      printf ("mq_timedsend with megatove tv_nsec did not fail with "
+	      "EINVAL: %m\n");
+      result = 1;
+    }
+
+  setitimer (ITIMER_REAL, &it, NULL);
+
+  if (mq_send (q, buf, 2, 8) == 0)
+    {
+      puts ("mq_send on full queue did not block");
+      result = 1;
+    }
+  else if (errno != EINTR)
+    {
+      printf ("mq_send on full queue did not fail with EINTR: %m\n");
+      result = 1;
+    }
+
+  setitimer (ITIMER_REAL, &it, NULL);
+
+  ts.tv_sec += 10;
+  ts.tv_nsec = 0;
+  if (mq_timedsend (q, buf, 2, 7, &ts) == 0)
+    {
+      puts ("mq_timedsend on full queue did not block");
+      result = 1;
+    }
+  else if (errno != EINTR)
+    {
+      printf ("mq_timedsend on full queue did not fail with EINTR: %m\n");
+      result = 1;
+    }
+
+  memset (buf, ' ', sizeof (buf));
+
+  if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
+    ts.tv_sec = time (NULL);
+  ts.tv_nsec = -1000000001;
+  rets = mq_timedreceive (q, buf, 2, &prio, &ts);
+  if (rets == -1 && errno == EINVAL)
+    rets = mq_receive (q, buf, 2, &prio);
+  if (rets != 2)
+    {
+      if (rets == -1)
+	printf ("mq_timedreceive failed: %m\n");
+      else
+	printf ("mq_timedreceive returned %zd != 2\n", rets);
+      result = 1;
+    }
+  else if (prio != 5 || memcmp (buf, "21 ", 3) != 0)
+    {
+      printf ("mq_timedreceive prio %u (5) buf \"%c%c%c\" (\"21 \")\n",
+	      prio, buf[0], buf[1], buf[2]);
+      result = 1;
+    }
+
+  if (mq_receive (q, buf, 1, NULL) == 0)
+    {
+      puts ("mq_receive with too small msg_len did not fail");
+      result = 1;
+    }
+  else if (errno != EMSGSIZE)
+    {
+      printf ("mq_receive with too small msg_len did not fail with "
+	      "EMSGSIZE: %m\n");
+      result = 1;
+    }
+
+  ts.tv_nsec = -ts.tv_nsec;
+  rets = mq_timedreceive (q, buf, 2, NULL, &ts);
+  if (rets == -1 && errno == EINVAL)
+    rets = mq_receive (q, buf, 2, NULL);
+  if (rets != 1)
+    {
+      if (rets == -1)
+	printf ("mq_timedreceive failed: %m\n");
+      else
+	printf ("mq_timedreceive returned %zd != 1\n", rets);
+      result = 1;
+    }
+  else if (memcmp (buf, "31 ", 3) != 0)
+    {
+      printf ("mq_timedreceive buf \"%c%c%c\" != \"31 \"\n",
+	      buf[0], buf[1], buf[2]);
+      result = 1;
+    }
+
+  if (mq_send (q, "", 0, 2) != 0)
+    {
+      printf ("mq_send with msg_len 0 failed: %m\n");
+      result = 1;
+    }
+
+  rets = mq_receive (q, buf, 2, &prio);
+  if (rets)
+    {
+      if (rets == -1)
+	printf ("mq_receive failed: %m\n");
+      else
+	printf ("mq_receive returned %zd != 0\n", rets);
+      result = 1;
+    }
+
+  long mq_prio_max = sysconf (_SC_MQ_PRIO_MAX);
+  if (mq_prio_max > 0 && (unsigned int) mq_prio_max == mq_prio_max)
+    {
+      if (mq_send (q, buf, 1, mq_prio_max) == 0)
+	{
+	  puts ("mq_send with MQ_PRIO_MAX priority unpexpectedly succeeded");
+	  result = 1;
+	}
+      else if (errno != EINVAL)
+	{
+	  printf ("mq_send with MQ_PRIO_MAX priority did not fail with "
+		  "EINVAL: %m\n");
+	  result = 1;
+	}
+
+      if (mq_send (q, buf, 1, mq_prio_max - 1) != 0)
+	{
+	  printf ("mq_send with MQ_PRIO_MAX-1 priority failed: %m\n");
+	  result = 1;
+	}
+    }
+
+  if (mq_unlink (name) != 0)
+    {
+      printf ("mq_unlink failed: %m\n");
+      result = 1;
+    }
+
+  q2 = mq_open (name, O_RDWR);
+  if (q2 != (mqd_t) -1)
+    {
+      printf ("mq_open of unlinked %s without O_CREAT unexpectedly"
+	      "succeeded\n", name);
+      result = 1;
+    }
+  else if (errno != ENOENT)
+    {
+      printf ("mq_open of unlinked %s without O_CREAT did not fail with "
+	      "ENOENT: %m\n", name);
+      result = 1;
+    }
+
+  if (mq_close (q) != 0)
+    {
+      printf ("mq_close in parent failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_receive (q, buf, 2, NULL) == 0)
+    {
+      puts ("mq_receive on invalid mqd_t did not fail");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("mq_receive on invalid mqd_t did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  if (mq_send (q, buf, 1, 2) == 0)
+    {
+      puts ("mq_send on invalid mqd_t did not fail");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("mq_send on invalid mqd_t did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  if (mq_getattr (q, &attr) == 0)
+    {
+      puts ("mq_getattr on invalid mqd_t did not fail");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("mq_getattr on invalid mqd_t did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  memset (&attr, 0, sizeof (attr));
+  if (mq_setattr (q, &attr, NULL) == 0)
+    {
+      puts ("mq_setattr on invalid mqd_t did not fail");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("mq_setattr on invalid mqd_t did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  if (mq_unlink ("/tst-mqueue2-which-should-never-exist") != -1)
+    {
+      puts ("mq_unlink of non-existant message queue unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != ENOENT)
+    {
+      printf ("mq_unlink of non-existant message queue did not fail with "
+	      "ENOENT: %m\n");
+      result = 1;
+    }
+  return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-mqueue3.c b/REORG.TODO/rt/tst-mqueue3.c
new file mode 100644
index 0000000000..55f9fc0dce
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue3.c
@@ -0,0 +1,243 @@
+/* Test SIGEV_THREAD handling for POSIX message queues.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <signal.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#if _POSIX_THREADS
+# include <pthread.h>
+
+static pid_t pid;
+static mqd_t m;
+static const char message[] = "hello";
+
+# define MAXMSG 10
+# define MSGSIZE 10
+# define UNIQUE 42
+
+
+static void
+fct (union sigval s)
+{
+  /* Put the mq in non-blocking mode.  */
+  struct mq_attr attr;
+  if (mq_getattr (m, &attr) != 0)
+    {
+      printf ("%s: mq_getattr failed: %m\n", __FUNCTION__);
+      exit (1);
+    }
+  attr.mq_flags |= O_NONBLOCK;
+  if (mq_setattr (m, &attr, NULL) != 0)
+    {
+      printf ("%s: mq_setattr failed: %m\n", __FUNCTION__);
+      exit (1);
+    }
+
+  /* Check the values.  */
+  if (attr.mq_maxmsg != MAXMSG)
+    {
+      printf ("%s: mq_maxmsg wrong: is %jd, expecte %d\n",
+	      __FUNCTION__, (intmax_t) attr.mq_maxmsg, MAXMSG);
+      exit (1);
+    }
+  if (attr.mq_msgsize != MAXMSG)
+    {
+      printf ("%s: mq_msgsize wrong: is %jd, expecte %d\n",
+	      __FUNCTION__, (intmax_t) attr.mq_msgsize, MSGSIZE);
+      exit (1);
+    }
+
+  /* Read the message.  */
+  char buf[attr.mq_msgsize];
+  ssize_t n = TEMP_FAILURE_RETRY (mq_receive (m, buf, attr.mq_msgsize, NULL));
+  if (n != sizeof (message))
+    {
+      printf ("%s: length of message wrong: is %zd, expected %zu\n",
+	      __FUNCTION__, n, sizeof (message));
+      exit (1);
+    }
+  if (memcmp (buf, message, sizeof (message)) != 0)
+    {
+      printf ("%s: message wrong: is \"%s\", expected \"%s\"\n",
+	      __FUNCTION__, buf, message);
+      exit (1);
+    }
+
+  exit (UNIQUE);
+}
+
+
+int
+do_test (void)
+{
+  char tmpfname[] = "/tmp/tst-mqueue3-barrier.XXXXXX";
+  int fd = mkstemp (tmpfname);
+  if (fd == -1)
+    {
+      printf ("cannot open temporary file: %m\n");
+      return 1;
+    }
+
+  /* Make sure it is always removed.  */
+  unlink (tmpfname);
+
+  /* Create one page of data.  */
+  size_t ps = sysconf (_SC_PAGESIZE);
+  char data[ps];
+  memset (data, '\0', ps);
+
+  /* Write the data to the file.  */
+  if (write (fd, data, ps) != (ssize_t) ps)
+    {
+      puts ("short write");
+      return 1;
+    }
+
+  void *mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+  if (mem == MAP_FAILED)
+    {
+      printf ("mmap failed: %m\n");
+      return 1;
+    }
+
+  pthread_barrier_t *b;
+  b = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t))
+                             & ~(__alignof (pthread_barrier_t) - 1));
+
+  pthread_barrierattr_t a;
+  if (pthread_barrierattr_init (&a) != 0)
+    {
+      puts ("barrierattr_init failed");
+      return 1;
+    }
+
+  if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
+    {
+      puts ("barrierattr_setpshared failed, could not test");
+      return 0;
+    }
+
+  if (pthread_barrier_init (b, &a, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  if (pthread_barrierattr_destroy (&a) != 0)
+    {
+      puts ("barrierattr_destroy failed");
+      return 1;
+    }
+
+  /* Name for the message queue.  */
+  char mqname[sizeof ("/tst-mqueue3-") + 3 * sizeof (pid_t)];
+  snprintf (mqname, sizeof (mqname) - 1, "/tst-mqueue3-%ld",
+	    (long int) getpid ());
+
+  /* Create the message queue.  */
+  struct mq_attr attr = { .mq_maxmsg = MAXMSG, .mq_msgsize = MSGSIZE };
+  m = mq_open (mqname, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+  if (m == -1)
+    {
+      if (errno == ENOSYS)
+	{
+	  puts ("not implemented");
+	  return 0;
+	}
+
+      puts ("mq_open failed");
+      return 1;
+    }
+
+  /* Unlink the message queue right away.  */
+  if (mq_unlink (mqname) != 0)
+    {
+      puts ("mq_unlink failed");
+      return 1;
+    }
+
+  pid = fork ();
+  if (pid == -1)
+    {
+      puts ("fork failed");
+      return 1;
+    }
+  if (pid == 0)
+    {
+      /* Request notification via thread.  */
+      struct sigevent ev;
+      ev.sigev_notify = SIGEV_THREAD;
+      ev.sigev_notify_function = fct;
+      ev.sigev_value.sival_ptr = NULL;
+      ev.sigev_notify_attributes = NULL;
+
+      /* Tell the kernel.  */
+      if (mq_notify (m,&ev) != 0)
+	{
+	  puts ("mq_notify failed");
+	  exit (1);
+	}
+
+      /* Tell the parent we are ready.  */
+      (void) pthread_barrier_wait (b);
+
+      /* Make sure the process goes away eventually.  */
+      alarm (10);
+
+      /* Do nothing forever.  */
+      while (1)
+	pause ();
+    }
+
+  /* Wait for the child process to register to notification method.  */
+  (void) pthread_barrier_wait (b);
+
+  /* Send the message.  */
+  if (mq_send (m, message, sizeof (message), 1) != 0)
+    {
+      kill (pid, SIGKILL);
+      puts ("mq_send failed");
+      return 1;
+    }
+
+  int r;
+  if (TEMP_FAILURE_RETRY (waitpid (pid, &r, 0)) != pid)
+    {
+      kill (pid, SIGKILL);
+      puts ("waitpid failed");
+      return 1;
+    }
+
+  return WIFEXITED (r) && WEXITSTATUS (r) == UNIQUE ? 0 : 1;
+}
+# define TEST_FUNCTION do_test ()
+#else
+# define TEST_FUNCTION 0
+#endif
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-mqueue4.c b/REORG.TODO/rt/tst-mqueue4.c
new file mode 100644
index 0000000000..8992193cac
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue4.c
@@ -0,0 +1,290 @@
+/* Test message queue passing.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include "tst-mqueue.h"
+
+#define TIMEOUT 4
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  int result = 0;
+
+  char name[sizeof "/tst-mqueue4-" + sizeof (pid_t) * 3 + NAME_MAX];
+  char *p;
+  p = name + snprintf (name, sizeof (name), "/tst-mqueue4-%u", getpid ());
+  struct mq_attr attr = { .mq_maxmsg = 2, .mq_msgsize = 2 };
+  mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+
+  if (q == (mqd_t) -1)
+    {
+      printf ("mq_open failed with: %m\n");
+      return result;
+    }
+  else
+    add_temp_mq (name);
+
+  *p = '.';
+  memset (p + 1, 'x', NAME_MAX + 1 - (p - name));
+  name[NAME_MAX + 1] = '\0';
+
+  mqd_t q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+  if (q2 == (mqd_t) -1)
+    {
+      printf ("mq_open with NAME_MAX long name compoment failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_unlink (name) != 0)
+    {
+      printf ("mq_unlink failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q2) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  name[NAME_MAX + 1] = 'x';
+  name[NAME_MAX + 2] = '\0';
+  q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+  if (q2 != (mqd_t) -1)
+    {
+      puts ("mq_open with too long name component unexpectedly succeeded");
+      mq_unlink (name);
+      mq_close (q2);
+      result = 1;
+    }
+  else if (errno != ENAMETOOLONG)
+    {
+      printf ("mq_open with too long name component did not fail with "
+	      "ENAMETOOLONG: %m\n");
+      result = 1;
+    }
+
+  if (mq_unlink (name) == 0)
+    {
+      puts ("mq_unlink with too long name component unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != ENAMETOOLONG)
+    {
+      printf ("mq_unlink with too long name component did not fail with "
+	      "ENAMETOOLONG: %m\n");
+      result = 1;
+    }
+
+  *p = '\0';
+  attr.mq_maxmsg = 1;
+  attr.mq_msgsize = 3;
+  q2 = mq_open (name, O_CREAT | O_RDWR, 0600, &attr);
+  if (q2 == (mqd_t) -1)
+    {
+      printf ("mq_open without O_EXCL failed with %m\n");
+      result = 1;
+    }
+
+  char buf[3];
+  strcpy (buf, "jk");
+  if (mq_send (q, buf, 2, 4) != 0)
+    {
+      printf ("mq_send failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_send (q, buf + 1, 1, 5) != 0)
+    {
+      printf ("mq_send failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_getattr (q2, &attr) != 0)
+    {
+      printf ("mq_getattr failed: %m\n");
+      result = 1;
+    }
+
+  if ((attr.mq_flags & O_NONBLOCK)
+      || attr.mq_maxmsg != 2
+      || attr.mq_msgsize != 2
+      || attr.mq_curmsgs != 2)
+    {
+      printf ("mq_getattr returned unexpected { .mq_flags = %jd,\n"
+	      ".mq_maxmsg = %jd, .mq_msgsize = %jd, .mq_curmsgs = %jd }\n",
+	      (intmax_t) attr.mq_flags, (intmax_t) attr.mq_maxmsg,
+	      (intmax_t) attr.mq_msgsize, (intmax_t) attr.mq_curmsgs);
+      result = 1;
+    }
+
+  struct timespec ts;
+  if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
+    ++ts.tv_sec;
+  else
+    {
+      ts.tv_sec = time (NULL) + 1;
+      ts.tv_nsec = 0;
+    }
+
+  if (mq_timedsend (q2, buf, 1, 1, &ts) == 0)
+    {
+      puts ("mq_timedsend unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != ETIMEDOUT)
+    {
+      printf ("mq_timedsend did not fail with ETIMEDOUT: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q2) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  q2 = mq_open (name, O_RDONLY, 0600);
+  if (q2 == (mqd_t) -1)
+    {
+      printf ("mq_open without O_CREAT failed with %m\n");
+      result = 1;
+    }
+
+  mqd_t q3 = mq_open (name, O_RDONLY, 0600);
+  if (q3 == (mqd_t) -1)
+    {
+      printf ("mq_open without O_CREAT failed with %m\n");
+      result = 1;
+    }
+
+  memset (buf, ' ', sizeof (buf));
+
+  unsigned int prio;
+  ssize_t rets = mq_receive (q2, buf, 2, &prio);
+  if (rets != 1)
+    {
+      if (rets == -1)
+	printf ("mq_receive failed with: %m\n");
+      else
+	printf ("mq_receive returned %zd != 1\n", rets);
+      result = 1;
+    }
+  else if (prio != 5 || memcmp (buf, "k  ", 3) != 0)
+    {
+      printf ("mq_receive returned prio %u (2) buf \"%c%c%c\" (\"k  \")\n",
+	      prio, buf[0], buf[1], buf[2]);
+      result = 1;
+    }
+
+  if (mq_getattr (q3, &attr) != 0)
+    {
+      printf ("mq_getattr failed: %m\n");
+      result = 1;
+    }
+
+  if ((attr.mq_flags & O_NONBLOCK)
+      || attr.mq_maxmsg != 2
+      || attr.mq_msgsize != 2
+      || attr.mq_curmsgs != 1)
+    {
+      printf ("mq_getattr returned unexpected { .mq_flags = %jd,\n"
+	      ".mq_maxmsg = %jd, .mq_msgsize = %jd, .mq_curmsgs = %jd }\n",
+	      (intmax_t) attr.mq_flags, (intmax_t) attr.mq_maxmsg,
+	      (intmax_t) attr.mq_msgsize, (intmax_t) attr.mq_curmsgs);
+      result = 1;
+    }
+
+  rets = mq_receive (q3, buf, 2, NULL);
+  if (rets != 2)
+    {
+      if (rets == -1)
+	printf ("mq_receive failed with: %m\n");
+      else
+	printf ("mq_receive returned %zd != 2\n", rets);
+      result = 1;
+    }
+  else if (memcmp (buf, "jk ", 3) != 0)
+    {
+      printf ("mq_receive returned buf \"%c%c%c\" != \"jk \"\n",
+	      buf[0], buf[1], buf[2]);
+      result = 1;
+    }
+
+  if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
+    ++ts.tv_sec;
+  else
+    {
+      ts.tv_sec = time (NULL) + 1;
+      ts.tv_nsec = 0;
+    }
+
+  if (mq_timedreceive (q2, buf, 2, NULL, &ts) != -1)
+    {
+      puts ("mq_timedreceive on empty queue unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != ETIMEDOUT)
+    {
+      printf ("mq_timedreceive on empty queue did not fail with "
+	      "ETIMEDOUT: %m\n");
+      result = 1;
+    }
+
+  if (mq_unlink (name) != 0)
+    {
+      printf ("mq_unlink failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q2) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q3) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-mqueue5.c b/REORG.TODO/rt/tst-mqueue5.c
new file mode 100644
index 0000000000..814b0081c3
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue5.c
@@ -0,0 +1,1030 @@
+/* Test mq_notify.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include "tst-mqueue.h"
+
+#define TIMEOUT 3
+
+#if _POSIX_THREADS && defined SIGRTMIN && defined SA_SIGINFO
+# include <pthread.h>
+
+volatile int rtmin_cnt;
+volatile pid_t rtmin_pid;
+volatile uid_t rtmin_uid;
+volatile int rtmin_code;
+volatile union sigval rtmin_sigval;
+
+static void
+rtmin_handler (int sig, siginfo_t *info, void *ctx)
+{
+  if (sig != SIGRTMIN)
+    abort ();
+  ++rtmin_cnt;
+  rtmin_pid = info->si_pid;
+  rtmin_uid = info->si_uid;
+  rtmin_code = info->si_code;
+  rtmin_sigval = info->si_value;
+}
+
+#define mqsend(q) (mqsend) (q, __LINE__)
+static int
+(mqsend) (mqd_t q, int line)
+{
+  char c;
+  if (mq_send (q, &c, 1, 1) != 0)
+    {
+      printf ("mq_send on line %d failed with: %m\n", line);
+      return 1;
+    }
+  return 0;
+}
+
+#define mqrecv(q) (mqrecv) (q, __LINE__)
+static int
+(mqrecv) (mqd_t q, int line)
+{
+  char c;
+  ssize_t rets = TEMP_FAILURE_RETRY (mq_receive (q, &c, 1, NULL));
+  if (rets != 1)
+    {
+      if (rets == -1)
+	printf ("mq_receive on line %d failed with: %m\n", line);
+      else
+	printf ("mq_receive on line %d returned %zd != 1\n",
+		line, rets);
+      return 1;
+    }
+  return 0;
+}
+
+struct thr_data
+{
+  const char *name;
+  pthread_barrier_t *b3;
+  mqd_t q;
+};
+
+static void *
+thr (void *arg)
+{
+  pthread_barrier_t *b3 = ((struct thr_data *)arg)->b3;
+  mqd_t q = ((struct thr_data *)arg)->q;
+  const char *name = ((struct thr_data *)arg)->name;
+  int result = 0;
+
+  result |= mqrecv (q);
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child verifies SIGRTMIN has not been sent.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Parent calls mqsend (q), which should trigger notification.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  if (rtmin_cnt != 2)
+    {
+      puts ("SIGRTMIN signal in thread did not arrive");
+      result = 1;
+    }
+  else if (rtmin_pid != getppid ()
+	   || rtmin_uid != getuid ()
+	   || rtmin_code != SI_MESGQ
+	   || rtmin_sigval.sival_int != 0xdeadbeef)
+    {
+      printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_int %d (%d)\n",
+	      rtmin_pid, getppid (), rtmin_uid, getuid (),
+	      rtmin_code, SI_MESGQ, rtmin_sigval.sival_int, 0xdeadbeef);
+      result = 1;
+    }
+
+  struct sigevent ev;
+  memset (&ev, 0x82, sizeof (ev));
+  ev.sigev_notify = SIGEV_NONE;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("mq_notify in thread (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_notify (q, NULL) != 0)
+    {
+      printf ("mq_notify in thread (q, NULL) failed with: %m\n");
+      result = 1;
+    }
+
+  result |= mqrecv (q);
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child calls mq_notify (q, { SIGEV_SIGNAL }).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  if (mq_notify (q, NULL) != 0)
+    {
+      printf ("second mq_notify in thread (q, NULL) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Parent calls mqsend (q), which should not trigger notification.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child verifies SIGRTMIN has not been received.  */
+  /* Child calls mq_notify (q, { SIGEV_SIGNAL }).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  mqd_t q4 = mq_open (name, O_RDONLY);
+  if (q4 == (mqd_t) -1)
+    {
+      printf ("mq_open in thread failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_notify (q4, NULL) != 0)
+    {
+      printf ("mq_notify in thread (q4, NULL) failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q4) != 0)
+    {
+      printf ("mq_close in thread failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Parent calls mqsend (q), which should not trigger notification.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child verifies SIGRTMIN has not been received.  */
+  /* Child calls mq_notify (q, { SIGEV_SIGNAL }).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  mqd_t q5 = mq_open (name, O_WRONLY);
+  if (q5 == (mqd_t) -1)
+    {
+      printf ("mq_open O_WRONLY in thread failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_notify (q5, NULL) != 0)
+    {
+      printf ("mq_notify in thread (q5, NULL) failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q5) != 0)
+    {
+      printf ("mq_close in thread failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Parent calls mqsend (q), which should not trigger notification.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child verifies SIGRTMIN has not been received.  */
+
+  return (void *) (long) result;
+}
+
+static void
+do_child (const char *name, pthread_barrier_t *b2, pthread_barrier_t *b3,
+	  mqd_t q)
+{
+  int result = 0;
+
+  struct sigevent ev;
+  memset (&ev, 0x55, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_ptr = &ev;
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("first mq_notify in child (q, { SIGEV_SIGNAL }) unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBUSY)
+    {
+      printf ("first mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Parent calls mqsend (q), which makes notification available.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  rtmin_cnt = 0;
+
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("second mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (rtmin_cnt != 0)
+    {
+      puts ("SIGRTMIN signal in child caught too early");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Parent unsuccessfully attempts to mq_notify.  */
+  /* Parent calls mqsend (q), which makes notification available
+     and triggers a signal in the child.  */
+  /* Parent successfully calls mq_notify SIGEV_SIGNAL.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  if (rtmin_cnt != 1)
+    {
+      puts ("SIGRTMIN signal in child did not arrive");
+      result = 1;
+    }
+  else if (rtmin_pid != getppid ()
+	   || rtmin_uid != getuid ()
+	   || rtmin_code != SI_MESGQ
+	   || rtmin_sigval.sival_ptr != &ev)
+    {
+      printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_ptr %p (%p)\n",
+	      rtmin_pid, getppid (), rtmin_uid, getuid (),
+	      rtmin_code, SI_MESGQ, rtmin_sigval.sival_ptr, &ev);
+      result = 1;
+    }
+
+  result |= mqsend (q);
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Parent verifies caught SIGRTMIN.  */
+
+  mqd_t q2 = mq_open (name, O_RDWR);
+  if (q2 == (mqd_t) -1)
+    {
+      printf ("mq_open in child failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Parent mq_open's another mqd_t for the same queue (q3).  */
+
+  memset (&ev, 0x11, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_ptr = &ev;
+  if (mq_notify (q2, &ev) != 0)
+    {
+      printf ("mq_notify in child (q2, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Parent unsuccessfully attempts to mq_notify { SIGEV_NONE } on q.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  if (mq_close (q2) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Parent successfully calls mq_notify { SIGEV_NONE } on q3.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  memset (&ev, 0xbb, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_ptr = &b2;
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("third mq_notify in child (q, { SIGEV_SIGNAL }) unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBUSY)
+    {
+      printf ("third mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Parent calls mq_close on q3, which makes the queue available again for
+     notification.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  memset (&ev, 0x13, sizeof (ev));
+  ev.sigev_notify = SIGEV_NONE;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("mq_notify in child (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_notify (q, NULL) != 0)
+    {
+      printf ("mq_notify in child (q, NULL) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  struct thr_data thr_data = { .name = name, .b3 = b3, .q = q };
+  pthread_t th;
+  int ret = pthread_create (&th, NULL, thr, &thr_data);
+  if (ret)
+    {
+      errno = ret;
+      printf ("pthread_created failed with: %m\n");
+      result = 1;
+    }
+
+  /* Wait till thr calls mq_receive on the empty queue q and blocks on it.  */
+  sleep (1);
+
+  memset (&ev, 0x5f, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_int = 0xdeadbeef;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("fourth mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  /* Ensure the thr thread gets the signal, not us.  */
+  sigset_t set;
+  sigemptyset (&set);
+  sigaddset (&set, SIGRTMIN);
+  if (pthread_sigmask (SIG_BLOCK, &set, NULL))
+    {
+      printf ("Failed to block SIGRTMIN in child: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Parent calls mqsend (q), which should wake up mqrecv (q)
+     in the thread but no notification should be sent.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  if (rtmin_cnt != 1)
+    {
+      puts ("SIGRTMIN signal caught while thr was blocked on mq_receive");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Parent calls mqsend (q), which should trigger notification.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Thread verifies SIGRTMIN has been received.  */
+  /* Thread calls mq_notify (q, { SIGEV_NONE }) to verify notification is now
+     available for registration.  */
+  /* Thread calls mq_notify (q, NULL).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  memset (&ev, 0x6a, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_ptr = do_child;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("fifth mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Thread calls mq_notify (q, NULL), which should unregister the above
+     notification.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Parent calls mqsend (q), which should not trigger notification.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  if (rtmin_cnt != 2)
+    {
+      puts ("SIGRTMIN signal caught while notification has been disabled");
+      result = 1;
+    }
+
+  memset (&ev, 0x7b, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_ptr = thr;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("sixth mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Thread opens a new O_RDONLY mqd_t (q4).  */
+  /* Thread calls mq_notify (q4, NULL), which should unregister the above
+     notification.  */
+  /* Thread calls mq_close (q4).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Parent calls mqsend (q), which should not trigger notification.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  if (rtmin_cnt != 2)
+    {
+      puts ("SIGRTMIN signal caught while notification has been disabled");
+      result = 1;
+    }
+
+  memset (&ev, 0xe1, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_int = 127;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("seventh mq_notify in child (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Thread opens a new O_WRONLY mqd_t (q5).  */
+  /* Thread calls mq_notify (q5, NULL), which should unregister the above
+     notification.  */
+  /* Thread calls mq_close (q5).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Parent calls mqsend (q), which should not trigger notification.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  if (rtmin_cnt != 2)
+    {
+      puts ("SIGRTMIN signal caught while notification has been disabled");
+      result = 1;
+    }
+
+  /* Reenable test signals before cleaning up the thread.  */
+  if (pthread_sigmask (SIG_UNBLOCK, &set, NULL))
+    {
+      printf ("Failed to unblock SIGRTMIN in child: %m\n");
+      result = 1;
+    }
+
+  void *thr_ret;
+  ret = pthread_join (th, &thr_ret);
+  if (ret)
+    {
+      errno = ret;
+      printf ("pthread_join failed: %m\n");
+      result = 1;
+    }
+  else if (thr_ret)
+    result = 1;
+
+  if (mq_close (q) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  exit (result);
+}
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  int result = 0;
+
+  char tmpfname[] = "/tmp/tst-mqueue5-barrier.XXXXXX";
+  int fd = mkstemp (tmpfname);
+  if (fd == -1)
+    {
+      printf ("cannot open temporary file: %m\n");
+      return 1;
+    }
+
+  /* Make sure it is always removed.  */
+  unlink (tmpfname);
+
+  /* Create one page of data.  */
+  size_t ps = sysconf (_SC_PAGESIZE);
+  char data[ps];
+  memset (data, '\0', ps);
+
+  /* Write the data to the file.  */
+  if (write (fd, data, ps) != (ssize_t) ps)
+    {
+      puts ("short write");
+      return 1;
+    }
+
+  void *mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+  if (mem == MAP_FAILED)
+    {
+      printf ("mmap failed: %m\n");
+      return 1;
+    }
+
+  pthread_barrier_t *b2;
+  b2 = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t))
+			      & ~(__alignof (pthread_barrier_t) - 1));
+
+  pthread_barrier_t *b3;
+  b3 = b2 + 1;
+
+  pthread_barrierattr_t a;
+  if (pthread_barrierattr_init (&a) != 0)
+    {
+      puts ("barrierattr_init failed");
+      return 1;
+    }
+
+  if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
+    {
+      puts ("barrierattr_setpshared failed, could not test");
+      return 0;
+    }
+
+  if (pthread_barrier_init (b2, &a, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  if (pthread_barrier_init (b3, &a, 3) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  if (pthread_barrierattr_destroy (&a) != 0)
+    {
+      puts ("barrierattr_destroy failed");
+      return 1;
+    }
+
+  char name[sizeof "/tst-mqueue5-" + sizeof (pid_t) * 3];
+  snprintf (name, sizeof (name), "/tst-mqueue5-%u", getpid ());
+
+  struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 };
+  mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+
+  if (q == (mqd_t) -1)
+    {
+      printf ("mq_open failed with: %m\n");
+      return result;
+    }
+  else
+    add_temp_mq (name);
+
+  struct sigevent ev;
+  memset (&ev, 0xaa, sizeof (ev));
+  ev.sigev_notify = SIGEV_NONE;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBUSY)
+    {
+      printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  result |= mqsend (q);
+
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  result |= mqrecv (q);
+
+  if (mq_notify (q, NULL) != 0)
+    {
+      printf ("mq_notify (q, NULL) failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_notify (q, NULL) != 0)
+    {
+      /* Implementation-defined behaviour, so don't fail,
+	 just inform.  */
+      printf ("second mq_notify (q, NULL) failed with: %m\n");
+    }
+
+  struct sigaction sa = { .sa_sigaction = rtmin_handler,
+			  .sa_flags = SA_SIGINFO };
+  sigemptyset (&sa.sa_mask);
+  sigaction (SIGRTMIN, &sa, NULL);
+
+  memset (&ev, 0x55, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_int = 26;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  ev.sigev_value.sival_ptr = &ev;
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("second mq_notify (q, { SIGEV_SIGNAL }) unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBUSY)
+    {
+      printf ("second mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (rtmin_cnt != 0)
+    {
+      puts ("SIGRTMIN signal caught too early");
+      result = 1;
+    }
+
+  result |= mqsend (q);
+
+  if (rtmin_cnt != 1)
+    {
+      puts ("SIGRTMIN signal did not arrive");
+      result = 1;
+    }
+  else if (rtmin_pid != getpid ()
+	   || rtmin_uid != getuid ()
+	   || rtmin_code != SI_MESGQ
+	   || rtmin_sigval.sival_int != 26)
+    {
+      printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_int %d (26)\n",
+	      rtmin_pid, getpid (), rtmin_uid, getuid (),
+	      rtmin_code, SI_MESGQ, rtmin_sigval.sival_int);
+      result = 1;
+    }
+
+  ev.sigev_value.sival_int = 75;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("third mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  result |= mqrecv (q);
+
+  if (mq_notify (q, NULL) != 0)
+    {
+      printf ("mq_notify (q, NULL) failed with: %m\n");
+      result = 1;
+    }
+
+  memset (&ev, 0x33, sizeof (ev));
+  ev.sigev_notify = SIGEV_NONE;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("fourth mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  pid_t pid = fork ();
+  if (pid == -1)
+    {
+      printf ("fork () failed: %m\n");
+      mq_unlink (name);
+      return 1;
+    }
+
+  if (pid == 0)
+    do_child (name, b2, b3, q);
+
+  /* Child unsuccessfully attempts to mq_notify.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  result |= mqsend (q);
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Child successfully calls mq_notify SIGEV_SIGNAL now.  */
+
+  result |= mqrecv (q);
+
+  (void) pthread_barrier_wait (b2);
+
+  memset (&ev, 0xbb, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_int = 15;
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("fourth mq_notify (q, { SIGEV_SIGNAL }) unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBUSY)
+    {
+      printf ("fourth mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  result |= mqsend (q);
+
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("fifth mq_notify (q, { SIGEV_SIGNAL }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (rtmin_cnt != 1)
+    {
+      puts ("SIGRTMIN signal caught too early");
+      result = 1;
+    }
+
+  result |= mqrecv (q);
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Child verifies caught SIGRTMIN signal.  */
+  /* Child calls mq_send (q) which triggers SIGRTMIN signal here.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Child mq_open's another mqd_t for the same queue (q2).  */
+
+  if (rtmin_cnt != 2)
+    {
+      puts ("SIGRTMIN signal did not arrive");
+      result = 1;
+    }
+  else if (rtmin_pid != pid
+	   || rtmin_uid != getuid ()
+	   || rtmin_code != SI_MESGQ
+	   || rtmin_sigval.sival_int != 15)
+    {
+      printf ("unexpected siginfo_t fields: pid %u (%u), uid %u (%u), code %d (%d), si_int %d (15)\n",
+	      rtmin_pid, pid, rtmin_uid, getuid (),
+	      rtmin_code, SI_MESGQ, rtmin_sigval.sival_int);
+      result = 1;
+    }
+
+  result |= mqrecv (q);
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Child successfully calls mq_notify { SIGEV_SIGNAL } on q2.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  memset (&ev, 0xbb, sizeof (ev));
+  ev.sigev_notify = SIGEV_NONE;
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("fifth mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBUSY)
+    {
+      printf ("fifth mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Child calls mq_close on q2, which makes the queue available again for
+     notification.  */
+
+  mqd_t q3 = mq_open (name, O_RDWR);
+  if (q3 == (mqd_t) -1)
+    {
+      printf ("mq_open q3 in parent failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  memset (&ev, 0x12, sizeof (ev));
+  ev.sigev_notify = SIGEV_NONE;
+  if (mq_notify (q3, &ev) != 0)
+    {
+      printf ("mq_notify (q3, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Child unsuccessfully attempts to mq_notify { SIGEV_SIGNAL } on q.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  if (mq_close (q3) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Child successfully calls mq_notify { SIGEV_NONE } on q.  */
+  /* Child successfully calls mq_notify NULL on q.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  /* Child creates new thread.  */
+  /* Thread blocks on mqrecv (q).  */
+  /* Child sleeps for 1sec so that thread has time to reach that point.  */
+  /* Child successfully calls mq_notify { SIGEV_SIGNAL } on q.  */
+
+  (void) pthread_barrier_wait (b2);
+
+  result |= mqsend (q);
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child verifies SIGRTMIN has not been sent.  */
+
+  (void) pthread_barrier_wait (b3);
+
+  result |= mqsend (q);
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Thread verifies SIGRTMIN has been caught.  */
+  /* Thread calls mq_notify (q, { SIGEV_NONE }) to verify notification is now
+     available for registration.  */
+  /* Thread calls mq_notify (q, NULL).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child calls mq_notify (q, { SIGEV_SIGNAL }).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Thread calls mq_notify (q, NULL). */
+
+  (void) pthread_barrier_wait (b3);
+
+  result |= mqsend (q);
+  result |= mqrecv (q);
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child verifies SIGRTMIN has not been sent.  */
+  /* Child calls mq_notify (q, { SIGEV_SIGNAL }).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Thread opens a new O_RDONLY mqd_t (q4).  */
+  /* Thread calls mq_notify (q4, NULL). */
+  /* Thread calls mq_close (q4).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  result |= mqsend (q);
+  result |= mqrecv (q);
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child verifies SIGRTMIN has not been sent.  */
+  /* Child calls mq_notify (q, { SIGEV_SIGNAL }).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Thread opens a new O_WRONLY mqd_t (q5).  */
+  /* Thread calls mq_notify (q5, NULL). */
+  /* Thread calls mq_close (q5).  */
+
+  (void) pthread_barrier_wait (b3);
+
+  result |= mqsend (q);
+  result |= mqrecv (q);
+
+  (void) pthread_barrier_wait (b3);
+
+  /* Child verifies SIGRTMIN has not been sent.  */
+
+  int status;
+  if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
+    {
+      puts ("waitpid failed");
+      kill (pid, SIGKILL);
+      result = 1;
+    }
+  else if (!WIFEXITED (status) || WEXITSTATUS (status))
+    {
+      printf ("child failed with status %d\n", status);
+      result = 1;
+    }
+
+  if (mq_unlink (name) != 0)
+    {
+      printf ("mq_unlink failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_notify (q, NULL) == 0)
+    {
+      puts ("mq_notify on closed mqd_t unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  memset (&ev, 0x55, sizeof (ev));
+  ev.sigev_notify = SIGEV_NONE;
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("mq_notify on closed mqd_t unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  return result;
+}
+#else
+# define TEST_FUNCTION 0
+#endif
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-mqueue6.c b/REORG.TODO/rt/tst-mqueue6.c
new file mode 100644
index 0000000000..e6dc54f9e3
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue6.c
@@ -0,0 +1,304 @@
+/* Test mq_notify.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include "tst-mqueue.h"
+
+#if _POSIX_THREADS
+# include <pthread.h>
+
+# define mqsend(q) (mqsend) (q, __LINE__)
+static int
+(mqsend) (mqd_t q, int line)
+{
+  char c;
+  if (mq_send (q, &c, 1, 1) != 0)
+    {
+      printf ("mq_send on line %d failed with: %m\n", line);
+      return 1;
+    }
+  return 0;
+}
+
+# define mqrecv(q) (mqrecv) (q, __LINE__)
+static int
+(mqrecv) (mqd_t q, int line)
+{
+  char c;
+  ssize_t rets = TEMP_FAILURE_RETRY (mq_receive (q, &c, 1, NULL));
+  if (rets != 1)
+    {
+      if (rets == -1)
+	printf ("mq_receive on line %d failed with: %m\n", line);
+      else
+	printf ("mq_receive on line %d returned %zd != 1\n",
+		line, rets);
+      return 1;
+    }
+  return 0;
+}
+
+volatile int fct_cnt, fct_err;
+size_t fct_guardsize;
+
+static void
+fct (union sigval s)
+{
+  mqd_t q = *(mqd_t *) s.sival_ptr;
+
+  pthread_attr_t nattr;
+  int ret = pthread_getattr_np (pthread_self (), &nattr);
+  if (ret)
+    {
+      errno = ret;
+      printf ("pthread_getattr_np failed: %m\n");
+      fct_err = 1;
+    }
+  else
+    {
+      ret = pthread_attr_getguardsize (&nattr, &fct_guardsize);
+      if (ret)
+	{
+	  errno = ret;
+	  printf ("pthread_attr_getguardsize failed: %m\n");
+	  fct_err = 1;
+	}
+      if (pthread_attr_destroy (&nattr) != 0)
+	{
+	  puts ("pthread_attr_destroy failed");
+	  fct_err = 1;
+	}
+    }
+
+  ++fct_cnt;
+  fct_err |= mqsend (q);
+}
+
+# define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  int result = 0;
+
+  char name[sizeof "/tst-mqueue6-" + sizeof (pid_t) * 3];
+  snprintf (name, sizeof (name), "/tst-mqueue6-%u", getpid ());
+
+  struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 };
+  mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+
+  if (q == (mqd_t) -1)
+    {
+      printf ("mq_open failed with: %m\n");
+      return result;
+    }
+  else
+    add_temp_mq (name);
+
+  pthread_attr_t nattr;
+  if (pthread_attr_init (&nattr)
+      || pthread_attr_setguardsize (&nattr, 0))
+    {
+      puts ("pthread_attr_t setup failed");
+      result = 1;
+    }
+
+  fct_guardsize = 1;
+
+  struct sigevent ev;
+  memset (&ev, 0xaa, sizeof (ev));
+  ev.sigev_notify = SIGEV_THREAD;
+  ev.sigev_notify_function = fct;
+  ev.sigev_notify_attributes = &nattr;
+  ev.sigev_value.sival_ptr = &q;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("mq_notify (q, { SIGEV_THREAD }) failed with: %m\n");
+      result = 1;
+    }
+
+  size_t ps = sysconf (_SC_PAGESIZE);
+  if (pthread_attr_setguardsize (&nattr, 32 * ps))
+    {
+      puts ("pthread_attr_t setup failed");
+      result = 1;
+    }
+
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBUSY)
+    {
+      printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (fct_cnt != 0)
+    {
+      printf ("fct called too early (%d on %d)\n", fct_cnt, __LINE__);
+      result = 1;
+    }
+
+  result |= mqsend (q);
+
+  result |= mqrecv (q);
+  result |= mqrecv (q);
+
+  if (fct_cnt != 1)
+    {
+      printf ("fct not called (%d on %d)\n", fct_cnt, __LINE__);
+      result = 1;
+    }
+  else if (fct_guardsize != 0)
+    {
+      printf ("fct_guardsize %zd != 0\n", fct_guardsize);
+      result = 1;
+    }
+
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_notify (q, NULL) != 0)
+    {
+      printf ("mq_notify (q, NULL) failed with: %m\n");
+      result = 1;
+    }
+
+  memset (&ev, 0x11, sizeof (ev));
+  ev.sigev_notify = SIGEV_THREAD;
+  ev.sigev_notify_function = fct;
+  ev.sigev_notify_attributes = &nattr;
+  ev.sigev_value.sival_ptr = &q;
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("mq_notify (q, { SIGEV_THREAD }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (pthread_attr_setguardsize (&nattr, 0))
+    {
+      puts ("pthread_attr_t setup failed");
+      result = 1;
+    }
+
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("second mq_notify (q, { SIGEV_NONE }) unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBUSY)
+    {
+      printf ("second mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (fct_cnt != 1)
+    {
+      printf ("fct called too early (%d on %d)\n", fct_cnt, __LINE__);
+      result = 1;
+    }
+
+  result |= mqsend (q);
+
+  result |= mqrecv (q);
+  result |= mqrecv (q);
+
+  if (fct_cnt != 2)
+    {
+      printf ("fct not called (%d on %d)\n", fct_cnt, __LINE__);
+      result = 1;
+    }
+  else if (fct_guardsize != 32 * ps)
+    {
+      printf ("fct_guardsize %zd != %zd\n", fct_guardsize, 32 * ps);
+      result = 1;
+    }
+
+  if (mq_notify (q, &ev) != 0)
+    {
+      printf ("third mq_notify (q, { SIGEV_NONE }) failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_notify (q, NULL) != 0)
+    {
+      printf ("mq_notify (q, NULL) failed with: %m\n");
+      result = 1;
+    }
+
+  if (pthread_attr_destroy (&nattr) != 0)
+    {
+      puts ("pthread_attr_destroy failed");
+      result = 1;
+    }
+
+  if (mq_unlink (name) != 0)
+    {
+      printf ("mq_unlink failed: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  memset (&ev, 0x55, sizeof (ev));
+  ev.sigev_notify = SIGEV_THREAD;
+  ev.sigev_notify_function = fct;
+  ev.sigev_notify_attributes = NULL;
+  ev.sigev_value.sival_int = 0;
+  if (mq_notify (q, &ev) == 0)
+    {
+      puts ("mq_notify on closed mqd_t unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("mq_notify on closed mqd_t did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  if (fct_err)
+    result = 1;
+  return result;
+}
+#else
+# define TEST_FUNCTION 0
+#endif
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-mqueue7.c b/REORG.TODO/rt/tst-mqueue7.c
new file mode 100644
index 0000000000..3680005ee2
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue7.c
@@ -0,0 +1,108 @@
+/* Test all open message queues descriptors are closed during exec*.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+
+#define OPT_AFTEREXEC 20000
+
+static mqd_t after_exec = (mqd_t) -1;
+
+#define CMDLINE_OPTIONS \
+  { "after-exec", required_argument, NULL, OPT_AFTEREXEC },
+
+#define CMDLINE_PROCESS \
+  case OPT_AFTEREXEC:					\
+    after_exec = (mqd_t) strtoul (optarg, NULL, 0);	\
+    break;
+
+static int
+do_after_exec (void)
+{
+  int result = 0;
+
+  struct mq_attr attr;
+  if (mq_getattr (after_exec, &attr) == 0)
+    {
+      puts ("mq_getattr after exec unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EBADF)
+    {
+      printf ("mq_getattr after exec did not fail with EBADF: %m\n");
+      result = 1;
+    }
+
+  return result;
+}
+
+static int
+do_test (int argc, char **argv)
+{
+  if (after_exec != (mqd_t) -1)
+    return do_after_exec ();
+
+  char name[sizeof "/tst-mqueue7-" + sizeof (pid_t) * 3];
+  snprintf (name, sizeof (name), "/tst-mqueue7-%u", getpid ());
+
+  struct mq_attr attr = { .mq_maxmsg = 10, .mq_msgsize = 1 };
+  mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_WRONLY, 0600, &attr);
+
+  if (q == (mqd_t) -1)
+    {
+      printf ("mq_open failed with: %m\n");
+      return 0;
+    }
+  else if (mq_unlink (name) != 0)
+    {
+      printf ("mq_unlink failed with: %m\n");
+      return 1;
+    }
+
+  if (mq_getattr (q, &attr) != 0)
+    {
+      printf ("mq_getattr failed: %m\n");
+      return 1;
+    }
+
+  char after_exec_arg[sizeof "--after-exec=0x" + sizeof (long) * 3];
+  snprintf (after_exec_arg, sizeof (after_exec_arg),
+	    "--after-exec=0x%lx", (long) q);
+
+  const char *newargv[argc + 2];
+  for (int i = 1; i < argc; ++i)
+    newargv[i - 1] = argv[i];
+  newargv[argc - 1] = "--direct";
+  newargv[argc] = after_exec_arg;
+  newargv[argc + 1] = NULL;
+
+  /* Verify that exec* has the effect of mq_close (q).  */
+  execv (newargv[0], (char * const *) newargv);
+  printf ("execv failed: %m\n");
+  return 1;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-mqueue8.c b/REORG.TODO/rt/tst-mqueue8.c
new file mode 100644
index 0000000000..70a0e87add
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue8.c
@@ -0,0 +1,265 @@
+/* Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#if _POSIX_THREADS
+# include <pthread.h>
+
+static pthread_barrier_t b;
+
+/* Cleanup handling test.  */
+static int cl_called;
+
+static void
+cl (void *arg)
+{
+  ++cl_called;
+}
+
+#define TF_MQ_RECEIVE		0L
+#define TF_MQ_TIMEDRECEIVE	1L
+#define TF_MQ_SEND		2L
+#define TF_MQ_TIMEDSEND		3L
+
+static const char *names[]
+  = { "mq_receive", "mq_timedreceive", "mq_send", "mq_timedsend" };
+
+static mqd_t q;
+static struct timespec never;
+
+static void *
+tf (void *arg)
+{
+  int r = pthread_barrier_wait (&b);
+  if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
+    {
+      puts ("tf: barrier_wait failed");
+      exit (1);
+    }
+
+  pthread_cleanup_push (cl, NULL);
+
+  char c = ' ';
+
+  switch ((long) arg)
+    {
+    case TF_MQ_SEND:
+      TEMP_FAILURE_RETRY (mq_send (q, &c, 1, 1));
+      break;
+    case TF_MQ_TIMEDSEND:
+      TEMP_FAILURE_RETRY (mq_timedsend (q, &c, 1, 1, &never));
+      break;
+    case TF_MQ_RECEIVE:
+      TEMP_FAILURE_RETRY (mq_receive (q, &c, 1, NULL));
+      break;
+    case TF_MQ_TIMEDRECEIVE:
+      TEMP_FAILURE_RETRY (mq_timedreceive (q, &c, 1, NULL, &never));
+      break;
+    }
+
+  pthread_cleanup_pop (0);
+
+  printf ("tf: %s returned\n", names[(long) arg]);
+
+  exit (1);
+}
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  char name[sizeof "/tst-mqueue8-" + sizeof (pid_t) * 3];
+  snprintf (name, sizeof (name), "/tst-mqueue8-%u", getpid ());
+
+  struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 };
+  q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+
+  if (q == (mqd_t) -1)
+    {
+      printf ("mq_open failed with: %m\n");
+      return 0;
+    }
+
+  if (mq_unlink (name) != 0)
+    {
+      printf ("mq_unlink failed with: %m\n");
+      return 1;
+    }
+
+  if (pthread_barrier_init (&b, NULL, 2) != 0)
+    {
+      puts ("barrier_init failed");
+      return 1;
+    }
+
+  if (clock_gettime (CLOCK_REALTIME, &never) == 0)
+    never.tv_sec += 100;
+  else
+    {
+      never.tv_sec = time (NULL) + 100;
+      never.tv_nsec = 0;
+    }
+
+  int result = 0;
+  for (long l = TF_MQ_RECEIVE; l <= TF_MQ_TIMEDSEND; ++l)
+    {
+      cl_called = 0;
+
+      pthread_t th;
+      if (pthread_create (&th, NULL, tf, (void *) l) != 0)
+	{
+	  printf ("1st %s create failed\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+
+      int r = pthread_barrier_wait (&b);
+      if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
+	{
+	  puts ("barrier_wait failed");
+	  result = 1;
+	  continue;
+	}
+
+      struct timespec ts = { .tv_sec = 0, .tv_nsec = 100000000 };
+      while (nanosleep (&ts, &ts) != 0)
+	continue;
+
+      printf ("going to cancel %s in-time\n", names[l]);
+      if (pthread_cancel (th) != 0)
+	{
+	  printf ("1st cancel of %s failed\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+
+      void *status;
+      if (pthread_join (th, &status) != 0)
+	{
+	  printf ("1st join of %s failed\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+      if (status != PTHREAD_CANCELED)
+	{
+	  printf ("1st %s thread not canceled\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+
+      if (cl_called == 0)
+	{
+	  printf ("%s cleanup handler not called\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+      if (cl_called > 1)
+	{
+	  printf ("%s cleanup handler called more than once\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+
+      printf ("in-time %s cancellation succeeded\n", names[l]);
+
+      cl_called = 0;
+
+      if (pthread_create (&th, NULL, tf, (void *) l) != 0)
+	{
+	  printf ("2nd %s create failed\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+
+      printf ("going to cancel %s early\n", names[l]);
+      if (pthread_cancel (th) != 0)
+	{
+	  printf ("2nd cancel of %s failed\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+
+      r = pthread_barrier_wait (&b);
+      if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
+	{
+	  puts ("barrier_wait failed");
+	  result = 1;
+	  continue;
+	}
+
+      if (pthread_join (th, &status) != 0)
+	{
+	  printf ("2nd join of %s failed\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+      if (status != PTHREAD_CANCELED)
+	{
+	  printf ("2nd %s thread not canceled\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+
+      if (cl_called == 0)
+	{
+	  printf ("%s cleanup handler not called\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+      if (cl_called > 1)
+	{
+	  printf ("%s cleanup handler called more than once\n", names[l]);
+	  result = 1;
+	  continue;
+	}
+
+      printf ("early %s cancellation succeeded\n", names[l]);
+
+      if (l == TF_MQ_TIMEDRECEIVE)
+	{
+	  /* mq_receive and mq_timedreceive are tested on empty mq.
+	     For mq_send and mq_timedsend we need to make it full.
+	     If this fails, there is no point in doing further testing.  */
+	  char c = ' ';
+	  if (mq_send (q, &c, 1, 1) != 0)
+	    {
+	      printf ("mq_send failed: %m\n");
+	      result = 1;
+	      break;
+	    }
+	}
+    }
+
+  if (mq_close (q) != 0)
+    {
+      printf ("mq_close failed: %m\n");
+      result = 1;
+    }
+
+  return result;
+}
+#else
+# define TEST_FUNCTION 0
+#endif
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-mqueue9.c b/REORG.TODO/rt/tst-mqueue9.c
new file mode 100644
index 0000000000..fdafca7a0e
--- /dev/null
+++ b/REORG.TODO/rt/tst-mqueue9.c
@@ -0,0 +1,91 @@
+/* Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "tst-mqueue.h"
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  if (geteuid () != 0)
+    {
+      puts ("this test requires root");
+      return 0;
+    }
+
+  char name[sizeof "/tst-mqueue9-" + sizeof (pid_t) * 3];
+  snprintf (name, sizeof (name), "/tst-mqueue9-%u", getpid ());
+
+  struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = 1 };
+  mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+
+  if (q == (mqd_t) -1)
+    {
+      printf ("mq_open failed with: %m\n");
+      return 0;
+    }
+  else
+    add_temp_mq (name);
+
+  if (seteuid (1) != 0)
+    {
+      printf ("failed to seteuid (1): %m\n");
+      mq_unlink (name);
+      return 0;
+    }
+
+  int result = 0;
+  if (mq_unlink (name) == 0)
+    {
+      puts ("mq_unlink unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EACCES)
+    {
+      printf ("mq_unlink did not fail with EACCES: %m\n");
+      result = 1;;
+    }
+
+  if (seteuid (0) != 0)
+    {
+      printf ("failed to seteuid (0): %m\n");
+      result = 1;
+    }
+
+  if (mq_unlink (name) != 0)
+    {
+      printf ("mq_unlink failed with: %m\n");
+      result = 1;
+    }
+
+  if (mq_close (q) != 0)
+    {
+      printf ("mq_close failed with: %m\n");
+      result = 1;
+    }
+
+  return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-shm-cancel.c b/REORG.TODO/rt/tst-shm-cancel.c
new file mode 100644
index 0000000000..ed1d7b8b37
--- /dev/null
+++ b/REORG.TODO/rt/tst-shm-cancel.c
@@ -0,0 +1,130 @@
+/* Test for shm_open cancellation handling: BZ #18243.
+   Copyright (C) 2016-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <pthread.h>
+#include <sys/mman.h>
+#include <semaphore.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdlib.h>
+
+static sem_t sem;	/* Use to sync with thread start.  */
+static const char shm_name[] = "/glibc-shm_open-cancel";
+
+static void
+remove_shm (int status, void *arg)
+{
+  shm_unlink (shm_name);
+}
+
+static void *
+tf (void *arg)
+{
+  pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, 0);
+
+  if (sem_wait (&sem) != 0)
+    {
+      printf ("error: sem_wait failed: %m");
+      exit (1);
+    }
+
+  if (pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, 0) != 0)
+    {
+      printf ("error: pthread_setcancelstate failed: %m");
+      exit (1);
+    }
+
+  /* Neither sem_unlink or sem_open should act on thread cancellation.  */
+  shm_unlink (shm_name);
+  on_exit (remove_shm, NULL);
+
+  int fd = shm_open (shm_name, O_CREAT, 0600);
+  if (fd == -1)
+    {
+      int exit_code;
+      if (errno == ENOSYS || errno == EACCES)
+	exit_code = 77;
+      else
+	exit_code = 1;
+      exit (exit_code);
+    }
+
+  if (pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, 0) != 0)
+    {
+      printf ("error: pthread_setcancelstate failed: %m");
+      exit (1);
+    }
+
+  if (close (fd) != 0)
+    {
+      printf ("error: pthread_setcancelstate failed: %m");
+      exit (1);
+    }
+
+  return NULL;
+}
+
+static int
+do_test (void)
+{
+  pthread_t td;
+
+  if (sem_init (&sem, 0, 0))
+    {
+      printf ("error: sem_init failed: %m\n");
+      exit (1);
+    }
+
+  if (pthread_create (&td, NULL, tf, NULL) != 0)
+    {
+      printf ("error: pthread_create failed: %m\n");
+      exit (1);
+    }
+
+  if (pthread_cancel (td) != 0)
+    {
+      printf ("error: pthread_cancel failed: %m\n");
+      exit (1);
+    }
+
+  if (sem_post (&sem) != 0)
+    {
+      printf ("error: sem_post failed: %m\n");
+      exit (1);
+    }
+
+  void *r;
+  if (pthread_join (td, &r) != 0)
+    {
+      printf ("error: pthread_join failed: %m\n");
+      exit (1);
+    }
+
+  if (r == PTHREAD_CANCELED)
+    {
+      puts ("error: pthread_join returned PTHREAD_CANCELED");
+      exit (1);
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include <test-skeleton.c>
diff --git a/REORG.TODO/rt/tst-shm.c b/REORG.TODO/rt/tst-shm.c
new file mode 100644
index 0000000000..978674837c
--- /dev/null
+++ b/REORG.TODO/rt/tst-shm.c
@@ -0,0 +1,211 @@
+/* Test program for POSIX shm_* functions.
+   Copyright (C) 2000-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+
+/* We want to see output immediately.  */
+#define STDOUT_UNBUFFERED
+
+static void
+worker (int write_now)
+{
+  struct timespec ts;
+  struct stat64 st;
+  int i;
+  int fd = shm_open ("/glibc-shm-test", O_RDWR, 0600);
+
+  if (fd == -1)
+    error (EXIT_FAILURE, 0, "failed to open shared memory object: shm_open");
+
+  char *mem;
+
+  if (fd == -1)
+    exit (fd);
+
+  if (fstat64 (fd, &st) == -1)
+    error (EXIT_FAILURE, 0, "stat failed");
+  if (st.st_size != 4000)
+    error (EXIT_FAILURE, 0, "size incorrect");
+
+  mem = mmap (NULL, 4000, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+  if (mem == MAP_FAILED)
+    error (EXIT_FAILURE, 0, "mmap failed");
+
+  ts.tv_sec = 0;
+  ts.tv_nsec = 500000000;
+
+  if (write_now)
+    for (i = 0; i <= 4; ++i)
+      mem[i] = i;
+  else
+    /* Wait until the first bytes of the memory region are 0, 1, 2, 3, 4.  */
+    while (1)
+      {
+	for (i = 0; i <= 4; ++i)
+	  if (mem[i] != i)
+	    break;
+
+	if (i > 4)
+	  /* OK, that's done.  */
+	  break;
+
+	nanosleep (&ts, NULL);
+      }
+
+  if (!write_now)
+    for (i = 0; i <= 4; ++i)
+      mem[i] = 4 + i;
+  else
+    /* Wait until the first bytes of the memory region are 4, 5, 6, 7, 8.  */
+    while (1)
+      {
+	for (i = 0; i <= 4; ++i)
+	  if (mem[i] != 4 + i)
+	    break;
+
+	if (i > 4)
+	  /* OK, that's done.  */
+	  break;
+
+	nanosleep (&ts, NULL);
+      }
+
+  if (munmap (mem, 4000) == -1)
+    error (EXIT_FAILURE, errno, "munmap");
+
+  close (fd);
+
+  exit (0);
+}
+
+
+static int
+do_test (void)
+{
+  int fd;
+  pid_t pid1;
+  pid_t pid2;
+  int status1;
+  int status2;
+  struct stat64 st;
+
+  fd = shm_open ("/../escaped", O_RDWR | O_CREAT | O_TRUNC | O_EXCL, 0600);
+  if (fd != -1)
+    {
+      perror ("read file outside of SHMDIR directory");
+      return 1;
+    }
+
+
+  /* Create the shared memory object.  */
+  fd = shm_open ("/glibc-shm-test", O_RDWR | O_CREAT | O_TRUNC | O_EXCL, 0600);
+  if (fd == -1)
+    {
+      /* If shm_open is unimplemented we skip the test.  */
+      if (errno == ENOSYS)
+        {
+	  perror ("shm_open unimplemented.  Test skipped.");
+          return 0;
+        }
+      else
+        error (EXIT_FAILURE, 0, "failed to create shared memory object: shm_open");
+    }
+
+  /* Size the object.  We make it 4000 bytes long.  */
+  if (ftruncate (fd, 4000) == -1)
+    {
+      /* This failed.  Must be a bug in the implementation of the
+         shared memory itself.  */
+      perror ("failed to size of shared memory object: ftruncate");
+      close (fd);
+      shm_unlink ("/glibc-shm-test");
+      return 0;
+    }
+
+  if (fstat64 (fd, &st) == -1)
+    {
+      shm_unlink ("/glibc-shm-test");
+      error (EXIT_FAILURE, 0, "initial stat failed");
+    }
+  if (st.st_size != 4000)
+    {
+      shm_unlink ("/glibc-shm-test");
+      error (EXIT_FAILURE, 0, "initial size not correct");
+    }
+
+  /* Spawn to processes which will do the work.  */
+  pid1 = fork ();
+  if (pid1 == 0)
+    worker (0);
+  else if (pid1 == -1)
+    {
+      /* Couldn't create a second process.  */
+      perror ("fork");
+      close (fd);
+      shm_unlink ("/glibc-shm-test");
+      return 0;
+    }
+
+  pid2 = fork ();
+  if (pid2 == 0)
+    worker (1);
+  else if (pid2 == -1)
+    {
+      /* Couldn't create a second process.  */
+      int ignore;
+      perror ("fork");
+      kill (pid1, SIGTERM);
+      waitpid (pid1, &ignore, 0);
+      close (fd);
+      shm_unlink ("/glibc-shm-test");
+      return 0;
+    }
+
+  /* Wait until the two processes are finished.  */
+  waitpid (pid1, &status1, 0);
+  waitpid (pid2, &status2, 0);
+
+  /* Now we can unlink the shared object.  */
+  shm_unlink ("/glibc-shm-test");
+
+  return (!WIFEXITED (status1) || WEXITSTATUS (status1) != 0
+	  || !WIFEXITED (status2) || WEXITSTATUS (status2) != 0);
+}
+
+static void
+cleanup_handler (void)
+{
+  shm_unlink ("/glibc-shm-test");
+}
+
+#define CLEANUP_HANDLER cleanup_handler
+
+#include <support/test-driver.c>
diff --git a/REORG.TODO/rt/tst-timer.c b/REORG.TODO/rt/tst-timer.c
new file mode 100644
index 0000000000..ee72474f8b
--- /dev/null
+++ b/REORG.TODO/rt/tst-timer.c
@@ -0,0 +1,35 @@
+/* Tests for POSIX timer implementation.  Dummy version.
+   Copyright (C) 2000-2017 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include <unistd.h>
+
+/* This file is only used if there is no other implementation and it should
+   means that there is no implementation of POSIX timers.  */
+static int
+do_test (void)
+{
+#ifdef _POSIX_TIMERS
+  /* There should be a test.  */
+  return 1;
+#else
+  return 0;
+#endif
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-timer2.c b/REORG.TODO/rt/tst-timer2.c
new file mode 100644
index 0000000000..b2ce9879ec
--- /dev/null
+++ b/REORG.TODO/rt/tst-timer2.c
@@ -0,0 +1,64 @@
+/* Test for crashing bugs when trying to create too many timers.  */
+
+#include <stdio.h>
+#include <time.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <unistd.h>
+
+#if _POSIX_THREADS
+# include <pthread.h>
+
+void
+thread (union sigval arg)
+{
+  puts ("Timeout");
+}
+
+int
+do_test (void)
+{
+  int i, res;
+  timer_t timerId;
+  struct itimerspec itval;
+  struct sigevent sigev;
+
+  itval.it_interval.tv_sec = 2;
+  itval.it_interval.tv_nsec = 0;
+  itval.it_value.tv_sec = 2;
+  itval.it_value.tv_nsec = 0;
+
+  sigev.sigev_notify = SIGEV_THREAD;
+  sigev.sigev_notify_function = thread;
+  sigev.sigev_notify_attributes = NULL;
+  sigev.sigev_value.sival_ptr = (void *) &timerId;
+
+  for (i = 0; i < 100; i++)
+    {
+      printf ("cnt = %d\n", i);
+
+      if (timer_create (CLOCK_REALTIME, &sigev, &timerId) < 0)
+	{
+	  perror ("timer_create");
+	  continue;
+	}
+
+      res = timer_settime (timerId, 0, &itval, NULL);
+      if (res < 0)
+	perror ("timer_settime");
+
+      res = timer_delete (timerId);
+      if (res < 0)
+	perror ("timer_delete");
+    }
+
+  return 0;
+}
+
+# define TEST_FUNCTION do_test ()
+#else
+# define TEST_FUNCTION 0
+#endif
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-timer3.c b/REORG.TODO/rt/tst-timer3.c
new file mode 100644
index 0000000000..8113f66903
--- /dev/null
+++ b/REORG.TODO/rt/tst-timer3.c
@@ -0,0 +1,86 @@
+/* Test for bogus per-thread deletion of timers.  */
+
+#include <stdio.h>
+#include <error.h>
+#include <time.h>
+#include <signal.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <unistd.h>
+#if _POSIX_THREADS
+# include <pthread.h>
+
+
+/* Creating timers in another thread should work too.  */
+static void *
+do_timer_create (void *arg)
+{
+  struct sigevent *const sigev = arg;
+  timer_t *const timerId = sigev->sigev_value.sival_ptr;
+  if (timer_create (CLOCK_REALTIME, sigev, timerId) < 0)
+    {
+      printf ("timer_create: %m\n");
+      return NULL;
+    }
+  return timerId;
+}
+
+
+static int
+do_test (void)
+{
+  int i, res;
+  timer_t timerId;
+  struct itimerspec itval;
+  struct sigevent sigev;
+
+  itval.it_interval.tv_sec = 2;
+  itval.it_interval.tv_nsec = 0;
+  itval.it_value.tv_sec = 2;
+  itval.it_value.tv_nsec = 0;
+
+  sigev.sigev_notify = SIGEV_SIGNAL;
+  sigev.sigev_signo = SIGALRM;
+  sigev.sigev_value.sival_ptr = (void *) &timerId;
+
+  for (i = 0; i < 100; i++)
+    {
+      printf ("cnt = %d\n", i);
+
+      pthread_t thr;
+      res = pthread_create (&thr, NULL, &do_timer_create, &sigev);
+      if (res)
+	{
+	  printf ("pthread_create: %s\n", strerror (res));
+	  continue;
+	}
+      void *val;
+      res = pthread_join (thr, &val);
+      if (res)
+	{
+	  printf ("pthread_join: %s\n", strerror (res));
+	  continue;
+	}
+      if (val == NULL)
+	continue;
+
+      res = timer_settime (timerId, 0, &itval, NULL);
+      if (res < 0)
+	printf ("timer_settime: %m\n");
+
+      res = timer_delete (timerId);
+      if (res < 0)
+	printf ("timer_delete: %m\n");
+    }
+
+  return 0;
+}
+
+# define TEST_FUNCTION do_test ()
+#else
+# define TEST_FUNCTION 0
+#endif
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-timer4.c b/REORG.TODO/rt/tst-timer4.c
new file mode 100644
index 0000000000..55620d6f2b
--- /dev/null
+++ b/REORG.TODO/rt/tst-timer4.c
@@ -0,0 +1,653 @@
+/* Tests for POSIX timer implementation.
+   Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004
+
+   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 <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <stdint.h>
+#if _POSIX_THREADS && defined SA_SIGINFO
+# include <pthread.h>
+
+# ifndef TEST_CLOCK
+#  define TEST_CLOCK		CLOCK_REALTIME
+# endif
+
+pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+
+timer_t timer_none, timer_sig1, timer_sig2, timer_thr1, timer_thr2;
+
+int thr1_cnt, thr1_err;
+union sigval thr1_sigval;
+struct timespec thr1_ts;
+
+static void
+thr1 (union sigval sigval)
+{
+  pthread_mutex_lock (&lock);
+  thr1_err = clock_gettime (TEST_CLOCK, &thr1_ts);
+  if (thr1_cnt >= 5)
+    {
+      struct itimerspec it = { };
+      thr1_err |= timer_settime (timer_thr1, 0, &it, NULL);
+    }
+  thr1_sigval = sigval;
+  ++thr1_cnt;
+  pthread_cond_signal (&cond);
+  pthread_mutex_unlock (&lock);
+}
+
+int thr2_cnt, thr2_err;
+union sigval thr2_sigval;
+size_t thr2_guardsize;
+struct timespec thr2_ts;
+
+static void
+thr2 (union sigval sigval)
+{
+  pthread_attr_t nattr;
+  int err = 0;
+  size_t guardsize = -1;
+  int ret = pthread_getattr_np (pthread_self (), &nattr);
+  if (ret)
+    {
+      errno = ret;
+      printf ("*** pthread_getattr_np failed: %m\n");
+      err = 1;
+    }
+  else
+    {
+      ret = pthread_attr_getguardsize (&nattr, &guardsize);
+      if (ret)
+        {
+          errno = ret;
+          printf ("*** pthread_attr_getguardsize failed: %m\n");
+          err = 1;
+        }
+      if (pthread_attr_destroy (&nattr) != 0)
+        {
+          puts ("*** pthread_attr_destroy failed");
+          err = 1;
+        }
+    }
+  pthread_mutex_lock (&lock);
+  thr2_err = clock_gettime (TEST_CLOCK, &thr2_ts) | err;
+  if (thr2_cnt >= 5)
+    {
+      struct itimerspec it = { };
+      thr2_err |= timer_settime (timer_thr2, 0, &it, NULL);
+    }
+  thr2_sigval = sigval;
+  ++thr2_cnt;
+  thr2_guardsize = guardsize;
+  pthread_cond_signal (&cond);
+  pthread_mutex_unlock (&lock);
+}
+
+volatile int sig1_cnt, sig1_err;
+volatile union sigval sig1_sigval;
+struct timespec sig1_ts;
+
+static void
+sig1_handler (int sig, siginfo_t *info, void *ctx)
+{
+  int err = 0;
+  if (sig != SIGRTMIN) err |= 1 << 0;
+  if (info->si_signo != SIGRTMIN) err |= 1 << 1;
+  if (info->si_code != SI_TIMER) err |= 1 << 2;
+  if (clock_gettime (TEST_CLOCK, &sig1_ts) != 0)
+    err |= 1 << 3;
+  if (sig1_cnt >= 5)
+    {
+      struct itimerspec it = { };
+      if (timer_settime (timer_sig1, 0, &it, NULL))
+	err |= 1 << 4;
+    }
+  sig1_err |= err;
+  sig1_sigval = info->si_value;
+  ++sig1_cnt;
+}
+
+volatile int sig2_cnt, sig2_err;
+volatile union sigval sig2_sigval;
+struct timespec sig2_ts;
+
+static void
+sig2_handler (int sig, siginfo_t *info, void *ctx)
+{
+  int err = 0;
+  if (sig != SIGRTMIN + 1) err |= 1 << 0;
+  if (info->si_signo != SIGRTMIN + 1) err |= 1 << 1;
+  if (info->si_code != SI_TIMER) err |= 1 << 2;
+  if (clock_gettime (TEST_CLOCK, &sig2_ts) != 0)
+    err |= 1 << 3;
+  if (sig2_cnt >= 5)
+    {
+      struct itimerspec it = { };
+      if (timer_settime (timer_sig2, 0, &it, NULL))
+	err |= 1 << 4;
+    }
+  sig2_err |= err;
+  sig2_sigval = info->si_value;
+  ++sig2_cnt;
+}
+
+/* Check if end is later or equal to start + nsec.  */
+static int
+check_ts (const char *name, const struct timespec *start,
+	  const struct timespec *end, long msec)
+{
+  struct timespec ts = *start;
+
+  ts.tv_sec += msec / 1000000;
+  ts.tv_nsec += (msec % 1000000) * 1000;
+  if (ts.tv_nsec >= 1000000000)
+    {
+      ++ts.tv_sec;
+      ts.tv_nsec -= 1000000000;
+    }
+  if (end->tv_sec < ts.tv_sec
+      || (end->tv_sec == ts.tv_sec && end->tv_nsec < ts.tv_nsec))
+    {
+      printf ("\
+*** timer %s invoked too soon: %ld.%09jd instead of expected %ld.%09jd\n",
+	      name, (long) end->tv_sec, (intmax_t) end->tv_nsec,
+	      (long) ts.tv_sec, (intmax_t) ts.tv_nsec);
+      return 1;
+    }
+  else
+    return 0;
+}
+
+#define TIMEOUT 15
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+  int result = 0;
+
+#ifdef TEST_CLOCK_MISSING
+  const char *missing = TEST_CLOCK_MISSING (TEST_CLOCK);
+  if (missing != NULL)
+    {
+      printf ("%s missing, skipping test\n", missing);
+      return 0;
+    }
+#endif
+
+  struct timespec ts;
+  if (clock_gettime (TEST_CLOCK, &ts) != 0)
+    {
+      printf ("*** clock_gettime failed: %m\n");
+      result = 1;
+    }
+  else
+    printf ("clock_gettime returned timespec = { %ld, %jd }\n",
+	    (long) ts.tv_sec, (intmax_t) ts.tv_nsec);
+
+  if (clock_getres (TEST_CLOCK, &ts) != 0)
+    {
+      printf ("*** clock_getres failed: %m\n");
+      result = 1;
+    }
+  else
+    printf ("clock_getres returned timespec = { %ld, %jd }\n",
+	    (long) ts.tv_sec, (intmax_t) ts.tv_nsec);
+
+  struct sigevent ev;
+  memset (&ev, 0x11, sizeof (ev));
+  ev.sigev_notify = SIGEV_NONE;
+  if (timer_create (TEST_CLOCK, &ev, &timer_none) != 0)
+    {
+      printf ("*** timer_create for timer_none failed: %m\n");
+      return 1;
+    }
+
+  struct sigaction sa = { .sa_sigaction = sig1_handler,
+			  .sa_flags = SA_SIGINFO };
+  sigemptyset (&sa.sa_mask);
+  sigaction (SIGRTMIN, &sa, NULL);
+  sa.sa_sigaction = sig2_handler;
+  sigaction (SIGRTMIN + 1, &sa, NULL);
+
+  memset (&ev, 0x22, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN;
+  ev.sigev_value.sival_ptr = &ev;
+  if (timer_create (TEST_CLOCK, &ev, &timer_sig1) != 0)
+    {
+      printf ("*** timer_create for timer_sig1 failed: %m\n");
+      return 1;
+    }
+
+  memset (&ev, 0x33, sizeof (ev));
+  ev.sigev_notify = SIGEV_SIGNAL;
+  ev.sigev_signo = SIGRTMIN + 1;
+  ev.sigev_value.sival_int = 163;
+  if (timer_create (TEST_CLOCK, &ev, &timer_sig2) != 0)
+    {
+      printf ("*** timer_create for timer_sig2 failed: %m\n");
+      return 1;
+    }
+
+  memset (&ev, 0x44, sizeof (ev));
+  ev.sigev_notify = SIGEV_THREAD;
+  ev.sigev_notify_function = thr1;
+  ev.sigev_notify_attributes = NULL;
+  ev.sigev_value.sival_ptr = &ev;
+  if (timer_create (TEST_CLOCK, &ev, &timer_thr1) != 0)
+    {
+      printf ("*** timer_create for timer_thr1 failed: %m\n");
+      return 1;
+    }
+
+  pthread_attr_t nattr;
+  if (pthread_attr_init (&nattr)
+      || pthread_attr_setguardsize (&nattr, 0))
+    {
+      puts ("*** pthread_attr_t setup failed");
+      result = 1;
+    }
+
+  memset (&ev, 0x55, sizeof (ev));
+  ev.sigev_notify = SIGEV_THREAD;
+  ev.sigev_notify_function = thr2;
+  ev.sigev_notify_attributes = &nattr;
+  ev.sigev_value.sival_int = 111;
+  if (timer_create (TEST_CLOCK, &ev, &timer_thr2) != 0)
+    {
+      printf ("*** timer_create for timer_thr2 failed: %m\n");
+      return 1;
+    }
+
+  int ret = timer_getoverrun (timer_thr1);
+  if (ret != 0)
+    {
+      if (ret == -1)
+	printf ("*** timer_getoverrun failed: %m\n");
+      else
+	printf ("*** timer_getoverrun returned %d != 0\n", ret);
+      result = 1;
+    }
+
+  struct itimerspec it;
+  it.it_value.tv_sec = 0;
+  it.it_value.tv_nsec = -26;
+  it.it_interval.tv_sec = 0;
+  it.it_interval.tv_nsec = 0;
+  if (timer_settime (timer_sig1, 0, &it, NULL) == 0)
+    {
+      puts ("*** timer_settime with negative tv_nsec unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EINVAL)
+    {
+      printf ("*** timer_settime with negative tv_nsec did not fail with "
+	      "EINVAL: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 100000;
+  it.it_interval.tv_nsec = 1000000000;
+  if (timer_settime (timer_sig2, 0, &it, NULL) == 0)
+    {
+      puts ("\
+*** timer_settime with tv_nsec 1000000000 unexpectedly succeeded");
+      result = 1;
+    }
+  else if (errno != EINVAL)
+    {
+      printf ("*** timer_settime with tv_nsec 1000000000 did not fail with "
+	      "EINVAL: %m\n");
+      result = 1;
+    }
+
+#if 0
+  it.it_value.tv_nsec = 0;
+  it.it_interval.tv_nsec = -26;
+  if (timer_settime (timer_thr1, 0, &it, NULL) != 0)
+    {
+      printf ("\
+!!! timer_settime with it_value 0 it_interval invalid failed: %m\n");
+      /* FIXME: is this mandated by POSIX?
+      result = 1; */
+    }
+
+  it.it_interval.tv_nsec = 3000000000;
+  if (timer_settime (timer_thr2, 0, &it, NULL) != 0)
+    {
+      printf ("\
+!!! timer_settime with it_value 0 it_interval invalid failed: %m\n");
+      /* FIXME: is this mandated by POSIX?
+      result = 1; */
+    }
+#endif
+
+  struct timespec startts;
+  if (clock_gettime (TEST_CLOCK, &startts) != 0)
+    {
+      printf ("*** clock_gettime failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 100000000;
+  it.it_interval.tv_nsec = 0;
+  if (timer_settime (timer_none, 0, &it, NULL) != 0)
+    {
+      printf ("*** timer_settime timer_none failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 200000000;
+  if (timer_settime (timer_thr1, 0, &it, NULL) != 0)
+    {
+      printf ("*** timer_settime timer_thr1 failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 300000000;
+  if (timer_settime (timer_thr2, 0, &it, NULL) != 0)
+    {
+      printf ("*** timer_settime timer_thr2 failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 400000000;
+  if (timer_settime (timer_sig1, 0, &it, NULL) != 0)
+    {
+      printf ("*** timer_settime timer_sig1 failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 500000000;
+  if (TEMP_FAILURE_RETRY (timer_settime (timer_sig2, 0, &it, NULL)) != 0)
+    {
+      printf ("*** timer_settime timer_sig2 failed: %m\n");
+      result = 1;
+    }
+
+  pthread_mutex_lock (&lock);
+  while (thr1_cnt == 0 || thr2_cnt == 0)
+    pthread_cond_wait (&cond, &lock);
+  pthread_mutex_unlock (&lock);
+
+  while (sig1_cnt == 0 || sig2_cnt == 0)
+    {
+      ts.tv_sec = 0;
+      ts.tv_nsec = 100000000;
+      nanosleep (&ts, NULL);
+    }
+
+  pthread_mutex_lock (&lock);
+
+  if (thr1_cnt != 1)
+    {
+      printf ("*** thr1 not called exactly once, but %d times\n", thr1_cnt);
+      result = 1;
+    }
+  else if (thr1_err)
+    {
+      puts ("*** an error occurred in thr1");
+      result = 1;
+    }
+  else if (thr1_sigval.sival_ptr != &ev)
+    {
+      printf ("*** thr1_sigval.sival_ptr %p != %p\n",
+	      thr1_sigval.sival_ptr, &ev);
+      result = 1;
+    }
+  else if (check_ts ("thr1", &startts, &thr1_ts, 200000))
+    result = 1;
+
+  if (thr2_cnt != 1)
+    {
+      printf ("*** thr2 not called exactly once, but %d times\n", thr2_cnt);
+      result = 1;
+    }
+  else if (thr2_err)
+    {
+      puts ("*** an error occurred in thr2");
+      result = 1;
+    }
+  else if (thr2_sigval.sival_int != 111)
+    {
+      printf ("*** thr2_sigval.sival_ptr %d != 111\n", thr2_sigval.sival_int);
+      result = 1;
+    }
+  else if (check_ts ("thr2", &startts, &thr2_ts, 300000))
+    result = 1;
+  else if (thr2_guardsize != 0)
+    {
+      printf ("*** thr2 guardsize %zd != 0\n", thr2_guardsize);
+      result = 1;
+    }
+
+  pthread_mutex_unlock (&lock);
+
+  if (sig1_cnt != 1)
+    {
+      printf ("*** sig1 not called exactly once, but %d times\n", sig1_cnt);
+      result = 1;
+    }
+  else if (sig1_err)
+    {
+      printf ("*** errors occurred in sig1 handler %x\n", sig1_err);
+      result = 1;
+    }
+  else if (sig1_sigval.sival_ptr != &ev)
+    {
+      printf ("*** sig1_sigval.sival_ptr %p != %p\n",
+	      sig1_sigval.sival_ptr, &ev);
+      result = 1;
+    }
+  else if (check_ts ("sig1", &startts, &sig1_ts, 400000))
+    result = 1;
+
+  if (sig2_cnt != 1)
+    {
+      printf ("*** sig2 not called exactly once, but %d times\n", sig2_cnt);
+      result = 1;
+    }
+  else if (sig2_err)
+    {
+      printf ("*** errors occurred in sig2 handler %x\n", sig2_err);
+      result = 1;
+    }
+  else if (sig2_sigval.sival_int != 163)
+    {
+      printf ("*** sig2_sigval.sival_ptr %d != 163\n", sig2_sigval.sival_int);
+      result = 1;
+    }
+  else if (check_ts ("sig2", &startts, &sig2_ts, 500000))
+    result = 1;
+
+  if (timer_gettime (timer_none, &it) != 0)
+    {
+      printf ("*** timer_gettime timer_none failed: %m\n");
+      result = 1;
+    }
+  else if (it.it_value.tv_sec || it.it_value.tv_nsec
+	   || it.it_interval.tv_sec || it.it_interval.tv_nsec)
+    {
+      printf ("\
+*** timer_gettime timer_none returned { %ld.%09jd, %ld.%09jd }\n",
+	      (long) it.it_value.tv_sec, (intmax_t) it.it_value.tv_nsec,
+	      (long) it.it_interval.tv_sec, (intmax_t) it.it_interval.tv_nsec);
+      result = 1;
+    }
+
+  if (clock_gettime (TEST_CLOCK, &startts) != 0)
+    {
+      printf ("*** clock_gettime failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_sec = 1;
+  it.it_value.tv_nsec = 0;
+  it.it_interval.tv_sec = 0;
+  it.it_interval.tv_nsec = 100000000;
+  if (timer_settime (timer_none, 0, &it, NULL) != 0)
+    {
+      printf ("*** timer_settime timer_none failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 100000000;
+  it.it_interval.tv_nsec = 200000000;
+  if (timer_settime (timer_thr1, 0, &it, NULL) != 0)
+    {
+      printf ("*** timer_settime timer_thr1 failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 200000000;
+  it.it_interval.tv_nsec = 300000000;
+  if (timer_settime (timer_thr2, 0, &it, NULL) != 0)
+    {
+      printf ("*** timer_settime timer_thr2 failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 300000000;
+  it.it_interval.tv_nsec = 400000000;
+  if (timer_settime (timer_sig1, 0, &it, NULL) != 0)
+    {
+      printf ("*** timer_settime timer_sig1 failed: %m\n");
+      result = 1;
+    }
+
+  it.it_value.tv_nsec = 400000000;
+  it.it_interval.tv_nsec = 500000000;
+  if (TEMP_FAILURE_RETRY (timer_settime (timer_sig2, 0, &it, NULL)) != 0)
+    {
+      printf ("*** timer_settime timer_sig2 failed: %m\n");
+      result = 1;
+    }
+
+  pthread_mutex_lock (&lock);
+  while (thr1_cnt < 6 || thr2_cnt < 6)
+    pthread_cond_wait (&cond, &lock);
+  pthread_mutex_unlock (&lock);
+
+  while (sig1_cnt < 6 || sig2_cnt < 6)
+    {
+      ts.tv_sec = 0;
+      ts.tv_nsec = 100000000;
+      nanosleep (&ts, NULL);
+    }
+
+  pthread_mutex_lock (&lock);
+
+  if (thr1_err)
+    {
+      puts ("*** an error occurred in thr1");
+      result = 1;
+    }
+  else if (check_ts ("thr1", &startts, &thr1_ts, 1100000 + 4 * 200000))
+    result = 1;
+
+  if (thr2_err)
+    {
+      puts ("*** an error occurred in thr2");
+      result = 1;
+    }
+  else if (check_ts ("thr2", &startts, &thr2_ts, 1200000 + 4 * 300000))
+    result = 1;
+  else if (thr2_guardsize != 0)
+    {
+      printf ("*** thr2 guardsize %zd != 0\n", thr2_guardsize);
+      result = 1;
+    }
+
+  pthread_mutex_unlock (&lock);
+
+  if (sig1_err)
+    {
+      printf ("*** errors occurred in sig1 handler %x\n", sig1_err);
+      result = 1;
+    }
+  else if (check_ts ("sig1", &startts, &sig1_ts, 1300000 + 4 * 400000))
+    result = 1;
+
+  if (sig2_err)
+    {
+      printf ("*** errors occurred in sig2 handler %x\n", sig2_err);
+      result = 1;
+    }
+  else if (check_ts ("sig2", &startts, &sig2_ts, 1400000 + 4 * 500000))
+    result = 1;
+
+  if (timer_gettime (timer_none, &it) != 0)
+    {
+      printf ("*** timer_gettime timer_none failed: %m\n");
+      result = 1;
+    }
+  else if (it.it_interval.tv_sec || it.it_interval.tv_nsec != 100000000)
+    {
+      printf ("\
+!!! second timer_gettime timer_none returned it_interval %ld.%09jd\n",
+	      (long) it.it_interval.tv_sec, (intmax_t) it.it_interval.tv_nsec);
+      /* FIXME: For now disabled.
+      result = 1; */
+    }
+
+  if (timer_delete (timer_none) != 0)
+    {
+      printf ("*** timer_delete for timer_none failed: %m\n");
+      result = 1;
+    }
+
+  if (timer_delete (timer_sig1) != 0)
+    {
+      printf ("*** timer_delete for timer_sig1 failed: %m\n");
+      result = 1;
+    }
+
+  if (timer_delete (timer_sig2) != 0)
+    {
+      printf ("*** timer_delete for timer_sig2 failed: %m\n");
+      result = 1;
+    }
+
+  if (timer_delete (timer_thr1) != 0)
+    {
+      printf ("*** timer_delete for timer_thr1 failed: %m\n");
+      result = 1;
+    }
+
+  if (timer_delete (timer_thr2) != 0)
+    {
+      printf ("*** timer_delete for timer_thr2 failed: %m\n");
+      result = 1;
+    }
+  return result;
+}
+
+#elif defined TEST_CLOCK_MISSING
+/* This just ensures that any functions called in TEST_CLOCK_MISSING
+   are not diagnosed as unused.  */
+# define TEST_FUNCTION (TEST_CLOCK_MISSING (TEST_CLOCK), 0)
+#else
+# define TEST_FUNCTION 0
+#endif
+
+#include "../test-skeleton.c"
diff --git a/REORG.TODO/rt/tst-timer5.c b/REORG.TODO/rt/tst-timer5.c
new file mode 100644
index 0000000000..6466c8efc1
--- /dev/null
+++ b/REORG.TODO/rt/tst-timer5.c
@@ -0,0 +1,38 @@
+/* Timer test using the monotonic clock.  */
+
+#include <time.h>
+#include <unistd.h>
+
+#if defined CLOCK_MONOTONIC && defined _POSIX_MONOTONIC_CLOCK
+
+# define TEST_CLOCK	CLOCK_MONOTONIC
+# define TEST_CLOCK_MISSING(clock) \
+  (setup_test () ? "CLOCK_MONOTONIC" : NULL)
+
+# include <stdio.h>
+
+static int
+setup_test (void)
+{
+  if (sysconf (_SC_MONOTONIC_CLOCK) <= 0)
+    return 1;
+
+  /* The user-level timers implementation doesn't support CLOCK_MONOTONIC,
+     even though sysconf claims it will.  */
+  timer_t t;
+  if (timer_create (TEST_CLOCK, NULL, &t) != 0)
+    {
+      printf ("timer_create: %m\n");
+      return 1;
+    }
+  timer_delete (t);
+
+  return 0;
+}
+
+# include "tst-timer4.c"
+
+#else
+# define TEST_FUNCTION	0
+# include "../test-skeleton.c"
+#endif