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[PATCH][v2] Clean pthread types namespace for all archs.


This patch sorts out pthread_mutex_t and pthread_cond_t in
new files, so new C11 types could be based on pthread types
without corrupting namespaces and exposing pthread symbols.

Common pthread types like pthread_mutex_t and pthread_cond_t are now
defined in bits/pthreadtypes-common.h, while the internal implementation
is moved to bits/thread-shared-types.h. File pthreadtypes.h has just
been cleaned up of those definitions and some related macros and
structures.

This is a second version of a patch that I submitted yesterday. Joseph
Myers found a few issue that I think I have solved for this version.
It consists in moving some code around some files, so it should work
in all architectures. However, I might have messed something and I
have only had the chance to test it in x86_64.

ChangeLog is attached to the email too, I haven't configured my email
client yet, sorry.

Cheers.

2015-06-24  Juan Manuel Torres Palma  <jmtorrespalma@gmail.com>

    * posix/Makefile (headers): Add files bits/pthreadtypes-common.h
    and bits/thread-shared-types.h to this variable.
    * bits/pthreadtypes-common.h: New file.
    (pthread_mutex_t): Move struct definition.
    (pthread_cond_t): Likewise.
    * bits/thread-shared-types.h: New file.
    * sysdeps/x86/bits/thread-shared-types.h: New file.
    (__SIZEOF_PTHREAD_MUTEX_T): Definition.
    (__SIZEOF_PTHREAD_COND_T): Likewise.
    (__pthread_list_t) [__x86_64__]: Likewise.
    (__pthread_slist_t) [!__x86_64__]: Likewise.
    (__pthread_mutex_s): Likewise.
    (__PTHREAD_MUTEX_T_CONTENT): Likewise.
    (__PTHREAD_COND_T_CONTENT): Likewise.
    (__PTHREAD_MUTEX_HAVE_PREV)[__x86_64__]: Likewise
    (__elision)[!__x86_64__]: Likewise
    (__spins)[!__x86_64__]: Likewise
    (__PTHREAD_SPINS): Likewise
    * sysdeps/aarch64/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/arm/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/hppa/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/ia64/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/m68k/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/microblaze/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/mips/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/nios2/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/s390/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/sh/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/sparc/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/tile/nptl/bits/thread-shared-types.h: Likewise.
    * sysdeps/unix/sysv/linux/alpha/bits/thread-shared-types.h: Likewise.
    * sysdeps/unix/sysv/linux/powerpc/bits/thread-shared-types.h: Likewise.
    * sysdeps/x86/bits/pthreadtypes.h: Include
    <bits/pthreadtypes-common.h>.
    (__SIZEOF_PTHREAD_MUTEX_T): Remove.
    (__SIZEOF_PTHREAD_COND_T): Likewise.
    (__pthread_list_t): Likewise.
    (__pthread_slist_t): Likewise.
    (__pthread_mutex_s): Likewise.
    (__PTHREAD_MUTEX_T_CONTENT): Likewise.
    (__PTHREAD_COND_T_CONTENT): Likewise.
    (__PTHREAD_MUTEX_HAVE_PREV): Likewise
    (__elision): Likewise
    (__spins): Likewise
    (__PTHREAD_SPINS): Likewise
    * sysdeps/aarch64/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/arm/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/hppa/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/ia64/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/m68k/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/microblaze/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/mips/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/nios2/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/s390/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/sh/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/sparc/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/tile/nptl/bits/pthreadtypes.h: Likewise.
    * sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h: Likewise.
    * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise.

-- 
Juan Manuel Torres Palma.
Computer Science Student at Universidad de Granada.

Attachment: ChangeLog-0001
Description: Binary data

commit b9e2fa0067ac2b8f4d31c0854bb75e4fcea3985b
Author: Juan Manuel Torres Palma <jmtorrespalma@gmail.com>
Date:   Wed Jun 24 21:14:58 2015 +0200

    Clean pthread types namespace for all archs.
    
    This patch sorts out pthread_mutex_t and pthread_cond_t in
    new files, so new C11 types could be based on pthread types
    without corrupting namespaces and exposing pthread symbols.
    
    Common pthread types like pthread_mutex_t and pthread_cond_t are now
    defined in bits/pthreadtypes-common.h, while the internal implementation
    is moved to bits/thread-shared-types.h. File pthreadtypes.h has just
    been cleaned up of those definitions and some related macros and
    structures.

diff --git a/bits/pthreadtypes-common.h b/bits/pthreadtypes-common.h
new file mode 100644
index 0000000..7276f84
--- /dev/null
+++ b/bits/pthreadtypes-common.h
@@ -0,0 +1,43 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+
+/* Declaration of common pthread types for all architectures.
+   Macros *_CONTENT are architecture dependent and defined in
+   bits/thread-shared-types.h */
+
+#ifndef _BITS_PTHREADTYPES_COMMON_H
+# define _BITS_PTHREADTYPES_COMMON_H	1
+
+# include <bits/thread-shared-types.h>
+
+/* Common definition of pthread_mutex_t. */
+
+typedef union
+{
+  __PTHREAD_MUTEX_T_CONTENT
+} pthread_mutex_t;
+
+
+/* Common definition of pthread_cond_t. */
+
+typedef union
+{
+  __PTHREAD_COND_T_CONTENT
+} pthread_cond_t;
+
+#endif /* bits/pthreadtypes-common.h */
diff --git a/bits/thread-shared-types.h b/bits/thread-shared-types.h
new file mode 100644
index 0000000..0e26952
--- /dev/null
+++ b/bits/thread-shared-types.h
@@ -0,0 +1 @@
+/* No thread support.  */
diff --git a/posix/Makefile b/posix/Makefile
index 15e8818..6de6f15 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -29,7 +29,8 @@ headers	:= sys/utsname.h sys/times.h sys/wait.h sys/types.h unistd.h	      \
 	   bits/local_lim.h tar.h bits/utsname.h bits/confname.h	      \
 	   bits/waitflags.h bits/waitstatus.h sys/unistd.h sched.h	      \
 	   bits/sched.h re_comp.h wait.h bits/environments.h cpio.h	      \
-	   sys/sysmacros.h spawn.h bits/unistd.h
+	   sys/sysmacros.h spawn.h bits/unistd.h	                      \
+	   bits/thread-shared-types.h bits/pthreadtypes-common.h 
 
 routines :=								      \
 	uname								      \
diff --git a/sysdeps/aarch64/nptl/bits/pthreadtypes.h b/sysdeps/aarch64/nptl/bits/pthreadtypes.h
index 0e4795e..4905274 100644
--- a/sysdeps/aarch64/nptl/bits/pthreadtypes.h
+++ b/sysdeps/aarch64/nptl/bits/pthreadtypes.h
@@ -20,11 +20,10 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <endian.h>
+#include <pthreadtypes-common.h>
 
 #define __SIZEOF_PTHREAD_ATTR_T        64
-#define __SIZEOF_PTHREAD_MUTEX_T       48
 #define __SIZEOF_PTHREAD_MUTEXATTR_T    8
-#define __SIZEOF_PTHREAD_COND_T        48
 #define __SIZEOF_PTHREAD_COND_COMPAT_T 48
 #define __SIZEOF_PTHREAD_CONDATTR_T     8
 #define __SIZEOF_PTHREAD_RWLOCK_T      56
@@ -48,32 +47,11 @@ typedef union pthread_attr_t pthread_attr_t;
 # define __have_pthread_attr_t1
 #endif
 
-typedef struct __pthread_internal_list
-{
-  struct __pthread_internal_list *__prev;
-  struct __pthread_internal_list *__next;
-} __pthread_list_t;
-
 
 /* Data structures for mutex handling.  The structure of the attribute
    type is not exposed on purpose.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-    unsigned int __nusers;
-    int __kind;
-    int __spins;
-    __pthread_list_t __list;
-#define __PTHREAD_MUTEX_HAVE_PREV	1
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
+#define __PTHREAD_MUTEX_HAVE_PREV	1
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
 
@@ -86,22 +64,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/aarch64/nptl/bits/thread-shared-types.h b/sysdeps/aarch64/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..20990f7
--- /dev/null
+++ b/sysdeps/aarch64/nptl/bits/thread-shared-types.h
@@ -0,0 +1,75 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_PTHREAD_SHARED_TYPES_H
+#define _BITS_PTHREAD_SHARED_TYPES_H	1
+
+#define __SIZEOF_PTHREAD_MUTEX_T       48
+#define __SIZEOF_PTHREAD_COND_T        48
+
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+  unsigned int __nusers;
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+  short __spins;
+  __pthread_list_t __list;
+};
+
+
+#define __PTHREAD_MUTEX_T_CONTENT            \
+  struct __pthread_mutex_s __data;           \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];      \
+  long int __align;
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/pthread-shared-types.h */
diff --git a/sysdeps/arm/nptl/bits/pthreadtypes.h b/sysdeps/arm/nptl/bits/pthreadtypes.h
index 9f2efc2..1650ef1 100644
--- a/sysdeps/arm/nptl/bits/pthreadtypes.h
+++ b/sysdeps/arm/nptl/bits/pthreadtypes.h
@@ -19,11 +19,10 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <endian.h>
+#include <bits/pthreadtypes-common.h>
 
 #define __SIZEOF_PTHREAD_ATTR_T 36
-#define __SIZEOF_PTHREAD_MUTEX_T 24
 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-#define __SIZEOF_PTHREAD_COND_T 48
 #define __SIZEOF_PTHREAD_COND_COMPAT_T 12
 #define __SIZEOF_PTHREAD_CONDATTR_T 4
 #define __SIZEOF_PTHREAD_RWLOCK_T 32
@@ -48,34 +47,8 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is not exposed on purpose.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-    unsigned int __nusers;
-    __extension__ union
-    {
-      int __spins;
-      __pthread_slist_t __list;
-    };
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
@@ -89,22 +62,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/arm/nptl/bits/thread-shared-types.h b/sysdeps/arm/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..993576e
--- /dev/null
+++ b/sysdeps/arm/nptl/bits/thread-shared-types.h
@@ -0,0 +1,78 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#define __SIZEOF_PTHREAD_MUTEX_T 24
+#define __SIZEOF_PTHREAD_COND_T 48
+
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+  unsigned int __nusers;
+  __extension__ union
+  {
+    int __spins;
+    __pthread_slist_t __list;
+  };
+};
+
+
+#define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;        \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];  \
+  long int __align;
+
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/hppa/nptl/bits/pthreadtypes.h b/sysdeps/hppa/nptl/bits/pthreadtypes.h
index 845629d..4c4b0ed 100644
--- a/sysdeps/hppa/nptl/bits/pthreadtypes.h
+++ b/sysdeps/hppa/nptl/bits/pthreadtypes.h
@@ -18,6 +18,8 @@
 #ifndef _BITS_PTHREADTYPES_H
 #define _BITS_PTHREADTYPES_H	1
 
+#include <bits/pthreadtypes-common.h>
+
 /* Linuxthread type sizes (bytes):
    sizeof(pthread_attr_t) = 0x24 (36)
    sizeof(pthread_barrier_t) = 0x30 (48)
@@ -33,9 +35,7 @@
 #define __SIZEOF_PTHREAD_ATTR_T 36
 #define __SIZEOF_PTHREAD_BARRIER_T 48
 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
-#define __SIZEOF_PTHREAD_COND_T 48
 #define __SIZEOF_PTHREAD_CONDATTR_T 4
-#define __SIZEOF_PTHREAD_MUTEX_T 48
 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
 #define __SIZEOF_PTHREAD_RWLOCK_T 64
 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -55,44 +55,9 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is not exposed on purpose.  */
 typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock __attribute__ ((aligned(16)));
-    unsigned int __count;
-    int __owner;
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-    /* The old 4-word 16-byte aligned lock. This is initalized
-       to all ones by the Linuxthreads PTHREAD_MUTEX_INITIALIZER.
-       Unused in NPTL.  */
-    int __compat_padding[4];
-    /* In the old structure there are 4 words left due to alignment.
-       In NPTL two words are used.  */
-    unsigned int __nusers;
-    __extension__ union
-    {
-      int __spins;
-      __pthread_slist_t __list;
-    };
-    /* Two more words are left before the NPTL
-       pthread_mutex_t is larger than Linuxthreads.  */
-    int __reserved1;
-    int __reserved2;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
@@ -111,35 +76,6 @@ typedef union
    version we must check, in every function using pthread_cond_t,
    for the static Linuxthreads initializer and clear the appropriate
    words. */
-typedef union
-{
-  struct
-  {
-    /* In the old Linuxthreads pthread_cond_t, this is the
-       start of the 4-word lock structure, the next four words
-       are set all to 1 by the Linuxthreads
-       PTHREAD_COND_INITIALIZER.  */
-    int __lock __attribute__ ((aligned(16)));
-    /* Tracks the initialization of this structure:
-       0  initialized with NPTL PTHREAD_COND_INITIALIZER.
-       1  initialized with Linuxthreads PTHREAD_COND_INITIALIZER.
-       2  initialization in progress.  */
-    int __initializer;
-    unsigned int __futex;
-    void *__mutex;
-    /* In the old Linuxthreads this would have been the start
-       of the pthread_fastlock status word.  */
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-    /* The NPTL pthread_cond_t is exactly the same size as
-       the Linuxthreads version, there are no words to spare.  */
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/hppa/nptl/bits/thread-shared-types.h b/sysdeps/hppa/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..31e61e4
--- /dev/null
+++ b/sysdeps/hppa/nptl/bits/thread-shared-types.h
@@ -0,0 +1,98 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#define __SIZEOF_PTHREAD_MUTEX_T 48
+#define __SIZEOF_PTHREAD_COND_T 48
+
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock __attribute__ ((aligned(16)));
+  unsigned int __count;
+  int __owner;
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+  /* The old 4-word 16-byte aligned lock. This is initalized
+     to all ones by the Linuxthreads PTHREAD_MUTEX_INITIALIZER.
+     Unused in NPTL.  */
+  int __compat_padding[4];
+  /* In the old structure there are 4 words left due to alignment.
+     In NPTL two words are used.  */
+  unsigned int __nusers;
+  __extension__ union
+  {
+    int __spins;
+    __pthread_slist_t __list;
+  };
+  /* Two more words are left before the NPTL
+     pthread_mutex_t is larger than Linuxthreads.  */
+  int __reserved1;
+  int __reserved2;
+};
+
+#define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;        \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];  \
+  long int __align;
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT          \
+  struct                                  \
+  {                                       \
+    /* In the old Linuxthreads pthread_cond_t, this is the
+       start of the 4-word lock structure, the next four words
+       are set all to 1 by the Linuxthreads
+       PTHREAD_COND_INITIALIZER.  */      \
+    int __lock __attribute__ ((aligned(16)));  \
+    /* Tracks the initialization of this structure:
+       0  initialized with NPTL PTHREAD_COND_INITIALIZER.
+       1  initialized with Linuxthreads PTHREAD_COND_INITIALIZER.
+       2  initialization in progress.  */ \
+    int __initializer;                    \
+    unsigned int __futex;                 \
+    void *__mutex;                        \
+    /* In the old Linuxthreads this would have been the start
+       of the pthread_fastlock status word.  */ \
+    __extension__ unsigned long long int __total_seq; \
+    __extension__ unsigned long long int __wakeup_seq; \
+    __extension__ unsigned long long int __woken_seq; \
+    unsigned int __nwaiters;              \
+    unsigned int __broadcast_seq;         \
+    /* The NPTL pthread_cond_t is exactly the same size as
+       the Linuxthreads version, there are no words to spare.  */ \
+  } __data;                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];   \
+  __extension__ long long int __align;
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/ia64/nptl/bits/pthreadtypes.h b/sysdeps/ia64/nptl/bits/pthreadtypes.h
index e9762f5..74f5c60 100644
--- a/sysdeps/ia64/nptl/bits/pthreadtypes.h
+++ b/sysdeps/ia64/nptl/bits/pthreadtypes.h
@@ -19,10 +19,10 @@
 #ifndef _BITS_PTHREADTYPES_H
 #define _BITS_PTHREADTYPES_H	1
 
+#include <bits/pthreadtypes-common.h>
+
 #define __SIZEOF_PTHREAD_ATTR_T 56
-#define __SIZEOF_PTHREAD_MUTEX_T 40
 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-#define __SIZEOF_PTHREAD_COND_T 48
 #define __SIZEOF_PTHREAD_CONDATTR_T 4
 #define __SIZEOF_PTHREAD_RWLOCK_T 56
 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -46,33 +46,9 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-typedef struct __pthread_internal_list
-{
-  struct __pthread_internal_list *__prev;
-  struct __pthread_internal_list *__next;
-} __pthread_list_t;
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is not exposed on purpose.  */
 typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-    unsigned int __nusers;
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-    int __spins;
-    __pthread_list_t __list;
-#define __PTHREAD_MUTEX_HAVE_PREV	1
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
@@ -86,22 +62,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/ia64/nptl/bits/thread-shared-types.h b/sysdeps/ia64/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..d3ffa02
--- /dev/null
+++ b/sysdeps/ia64/nptl/bits/thread-shared-types.h
@@ -0,0 +1,73 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#define __SIZEOF_PTHREAD_MUTEX_T 40
+#define __SIZEOF_PTHREAD_COND_T 48
+
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+  unsigned int __nusers;
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+  int __spins;
+  __pthread_list_t __list;
+#define __PTHREAD_MUTEX_HAVE_PREV	1
+};
+
+#define __PTHREAD_MUTEX_T_CONTENT             \
+  struct __pthread_mutex_s __data;            \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];      \
+  long int __align;
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/m68k/nptl/bits/pthreadtypes.h b/sysdeps/m68k/nptl/bits/pthreadtypes.h
index 0e2bcdd..fbd704b 100644
--- a/sysdeps/m68k/nptl/bits/pthreadtypes.h
+++ b/sysdeps/m68k/nptl/bits/pthreadtypes.h
@@ -20,11 +20,10 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <endian.h>
+#include <bits/pthreadtypes-common.h>
 
 #define __SIZEOF_PTHREAD_ATTR_T 36
-#define __SIZEOF_PTHREAD_MUTEX_T 24
 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-#define __SIZEOF_PTHREAD_COND_T 48
 #define __SIZEOF_PTHREAD_CONDATTR_T 4
 #define __SIZEOF_PTHREAD_RWLOCK_T 32
 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -48,34 +47,8 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is deliberately not exposed.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock __attribute__ ((__aligned__ (4)));
-    unsigned int __count;
-    int __owner;
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-    unsigned int __nusers;
-    __extension__ union
-    {
-      int __spins;
-      __pthread_slist_t __list;
-    };
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
@@ -89,22 +62,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is deliberately not exposed.  */
-typedef union
-{
-  struct
-  {
-    int __lock __attribute__ ((__aligned__ (4)));
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/m68k/nptl/bits/thread-shared-types.h b/sysdeps/m68k/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..2f16125
--- /dev/null
+++ b/sysdeps/m68k/nptl/bits/thread-shared-types.h
@@ -0,0 +1,80 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#define __SIZEOF_PTHREAD_MUTEX_T 24
+#define __SIZEOF_PTHREAD_COND_T 48
+
+
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock __attribute__ ((__aligned__ (4)));
+  unsigned int __count;
+  int __owner;
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+  unsigned int __nusers;
+  __extension__ union
+  {
+    int __spins;
+    __pthread_slist_t __list;
+  };
+};
+
+
+#define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;        \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];  \
+  long int __align;
+
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock __attribute__ ((__aligned__ (4)));         \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;                    \
+
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/microblaze/nptl/bits/pthreadtypes.h b/sysdeps/microblaze/nptl/bits/pthreadtypes.h
index b8bd828..66baf1a 100644
--- a/sysdeps/microblaze/nptl/bits/pthreadtypes.h
+++ b/sysdeps/microblaze/nptl/bits/pthreadtypes.h
@@ -20,11 +20,10 @@
 # define _BITS_PTHREADTYPES_H	1
 
 # include <endian.h>
+#include <bits/pthreadtypes-common.h>
 
 # define __SIZEOF_PTHREAD_ATTR_T         36
-# define __SIZEOF_PTHREAD_MUTEX_T        24
 # define __SIZEOF_PTHREAD_MUTEXATTR_T     4
-# define __SIZEOF_PTHREAD_COND_T         48
 # define __SIZEOF_PTHREAD_COND_COMPAT_T  12
 # define __SIZEOF_PTHREAD_CONDATTR_T      4
 # define __SIZEOF_PTHREAD_RWLOCK_T       32
@@ -48,33 +47,9 @@ typedef union pthread_attr_t pthread_attr_t;
 #  define __have_pthread_attr_t	1
 # endif
 
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
 
 /* Data structures for mutex handling.  The structure of the attribute
    type is not exposed on purpose.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-    unsigned int __nusers;
-    __extension__ union
-    {
-      int __spins;
-      __pthread_slist_t __list;
-    };
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
@@ -87,22 +62,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/microblaze/nptl/bits/thread-shared-types.h b/sysdeps/microblaze/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..2fce0f5
--- /dev/null
+++ b/sysdeps/microblaze/nptl/bits/thread-shared-types.h
@@ -0,0 +1,76 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#define __SIZEOF_PTHREAD_MUTEX_T        24
+#define __SIZEOF_PTHREAD_COND_T         48
+
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+  unsigned int __nusers;
+  __extension__ union
+  {
+    int __spins;
+    __pthread_slist_t __list;
+  };
+};
+
+
+#define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;        \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];  \
+  long int __align;
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/mips/nptl/bits/pthreadtypes.h b/sysdeps/mips/nptl/bits/pthreadtypes.h
index 8cf4547..ea05100 100644
--- a/sysdeps/mips/nptl/bits/pthreadtypes.h
+++ b/sysdeps/mips/nptl/bits/pthreadtypes.h
@@ -20,12 +20,11 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <endian.h>
+#include <bits/pthreadtypes-common.h>
 
 #if _MIPS_SIM == _ABI64
 # define __SIZEOF_PTHREAD_ATTR_T 56
-# define __SIZEOF_PTHREAD_MUTEX_T 40
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 56
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -33,9 +32,7 @@
 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
 #else
 # define __SIZEOF_PTHREAD_ATTR_T 36
-# define __SIZEOF_PTHREAD_MUTEX_T 24
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 32
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -60,51 +57,8 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-#if _MIPS_SIM == _ABI64
-typedef struct __pthread_internal_list
-{
-  struct __pthread_internal_list *__prev;
-  struct __pthread_internal_list *__next;
-} __pthread_list_t;
-#else
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-#endif
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is deliberately not exposed.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-#if _MIPS_SIM == _ABI64
-    unsigned int __nusers;
-#endif
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-#if _MIPS_SIM == _ABI64
-    int __spins;
-    __pthread_list_t __list;
-# define __PTHREAD_MUTEX_HAVE_PREV	1
-#else
-    unsigned int __nusers;
-    __extension__ union
-    {
-      int __spins;
-      __pthread_slist_t __list;
-    };
-#endif
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
@@ -118,22 +72,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is deliberately not exposed.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/mips/nptl/bits/thread-shared-types.h b/sysdeps/mips/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..b7a254e
--- /dev/null
+++ b/sysdeps/mips/nptl/bits/thread-shared-types.h
@@ -0,0 +1,99 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#if _MIPS_SIM == _ABI64
+# define __SIZEOF_PTHREAD_MUTEX_T 40
+# define __SIZEOF_PTHREAD_COND_T 48
+#else
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_COND_T 48
+#endif
+
+#if _MIPS_SIM == _ABI64
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+#else
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+#endif
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+#if _MIPS_SIM == _ABI64
+  unsigned int __nusers;
+#endif
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+#if _MIPS_SIM == _ABI64
+  int __spins;
+  __pthread_list_t __list;
+# define __PTHREAD_MUTEX_HAVE_PREV	1
+#else
+  unsigned int __nusers;
+  __extension__ union
+  {
+    int __spins;
+    __pthread_slist_t __list;
+  };
+#endif
+};
+
+
+# define __PTHREAD_MUTEX_T_CONTENT         \
+  struct pthread_mutex_s __data;           \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];   \
+  long int __align;
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/nios2/nptl/bits/pthreadtypes.h b/sysdeps/nios2/nptl/bits/pthreadtypes.h
index 4a20803..cf689bc 100644
--- a/sysdeps/nios2/nptl/bits/pthreadtypes.h
+++ b/sysdeps/nios2/nptl/bits/pthreadtypes.h
@@ -20,11 +20,10 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <endian.h>
+#include <bits/pthreadtypes-common.h>
 
 #define __SIZEOF_PTHREAD_ATTR_T 36
-#define __SIZEOF_PTHREAD_MUTEX_T 24
 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-#define __SIZEOF_PTHREAD_COND_T 48
 #define __SIZEOF_PTHREAD_CONDATTR_T 4
 #define __SIZEOF_PTHREAD_RWLOCK_T 32
 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -48,34 +47,8 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is deliberately not exposed.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-    unsigned int __nusers;
-    __extension__ union
-    {
-      int __spins;
-      __pthread_slist_t __list;
-    };
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 typedef union
 {
@@ -89,22 +62,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is deliberately not exposed.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/nios2/nptl/bits/thread-shared-types.h b/sysdeps/nios2/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..586de33
--- /dev/null
+++ b/sysdeps/nios2/nptl/bits/thread-shared-types.h
@@ -0,0 +1,77 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#define __SIZEOF_PTHREAD_MUTEX_T 24
+#define __SIZEOF_PTHREAD_COND_T 48
+
+
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+  unsigned int __nusers;
+  __extension__ union
+  {
+    int __spins;
+    __pthread_slist_t __list;
+  };
+};
+
+
+#define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;        \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];  \
+  long int __align;
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/s390/nptl/bits/pthreadtypes.h b/sysdeps/s390/nptl/bits/pthreadtypes.h
index 1f3bb14..ab52671 100644
--- a/sysdeps/s390/nptl/bits/pthreadtypes.h
+++ b/sysdeps/s390/nptl/bits/pthreadtypes.h
@@ -19,12 +19,11 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <bits/wordsize.h>
+#include <bits/pthreadtypes-common.h>
 
 #if __WORDSIZE == 64
 # define __SIZEOF_PTHREAD_ATTR_T 56
-# define __SIZEOF_PTHREAD_MUTEX_T 40
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 56
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -32,9 +31,7 @@
 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
 #else
 # define __SIZEOF_PTHREAD_ATTR_T 36
-# define __SIZEOF_PTHREAD_MUTEX_T 24
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 32
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -59,75 +56,8 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-#if __WORDSIZE == 64
-typedef struct __pthread_internal_list
-{
-  struct __pthread_internal_list *__prev;
-  struct __pthread_internal_list *__next;
-} __pthread_list_t;
-#else
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-#endif
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is not exposed on purpose.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-#if __WORDSIZE == 64
-    unsigned int __nusers;
-#endif
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-#if __WORDSIZE == 64
-# ifdef ENABLE_LOCK_ELISION
-    short __spins;
-    short __elision;
-    /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
-#  define __PTHREAD_SPINS               0, 0
-# else
-    int __spins;
-    /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
-#  define __PTHREAD_SPINS               0
-# endif
-    __pthread_list_t __list;
-# define __PTHREAD_MUTEX_HAVE_PREV	1
-#else
-    unsigned int __nusers;
-    __extension__ union
-    {
-# ifdef ENABLE_LOCK_ELISION
-      struct
-      {
-	short __espins;
-	short __elision;
-      } _d;
-#  define __spins _d.__espins
-#  define __elision _d.__elision
-    /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
-#  define __PTHREAD_SPINS               { 0, 0 }
-# else
-      int __spins;
-    /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
-#  define __PTHREAD_SPINS               0
-# endif
-      __pthread_slist_t __list;
-    };
-#endif
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
-
 
 typedef union
 {
@@ -138,22 +68,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
@@ -244,5 +158,4 @@ typedef union
 } pthread_barrierattr_t;
 #endif
 
-
 #endif	/* bits/pthreadtypes.h */
diff --git a/sysdeps/s390/nptl/bits/thread-shared-types.h b/sysdeps/s390/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..36dd0af
--- /dev/null
+++ b/sysdeps/s390/nptl/bits/thread-shared-types.h
@@ -0,0 +1,123 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+# define __SIZEOF_PTHREAD_MUTEX_T 40
+# define __SIZEOF_PTHREAD_COND_T 48
+#else
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_COND_T 48
+#endif
+
+#if __WORDSIZE == 64
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+#else
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+#endif
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+#if __WORDSIZE == 64
+  unsigned int __nusers;
+#endif
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+#if __WORDSIZE == 64
+# ifdef ENABLE_LOCK_ELISION
+  short __spins;
+  short __elision;
+  /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
+#  define __PTHREAD_SPINS               0, 0
+# else
+  int __spins;
+  /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
+#  define __PTHREAD_SPINS               0
+# endif
+  __pthread_list_t __list;
+# define __PTHREAD_MUTEX_HAVE_PREV	1
+#else
+  unsigned int __nusers;
+  __extension__ union
+  {
+# ifdef ENABLE_LOCK_ELISION
+    struct
+    {
+      short __espins;
+      short __elision;
+    } _d;
+#  define __spins _d.__espins
+#  define __elision _d.__elision
+  /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
+#  define __PTHREAD_SPINS               { 0, 0 }
+# else
+    int __spins;
+  /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
+#  define __PTHREAD_SPINS               0
+# endif
+    __pthread_slist_t __list;
+  };
+#endif
+};
+
+#define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;        \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];  \
+  long int __align;
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/sh/nptl/bits/pthreadtypes.h b/sysdeps/sh/nptl/bits/pthreadtypes.h
index 5940232..f6df351 100644
--- a/sysdeps/sh/nptl/bits/pthreadtypes.h
+++ b/sysdeps/sh/nptl/bits/pthreadtypes.h
@@ -19,11 +19,10 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <endian.h>
+#include <bits/pthreadtypes-common.h>
 
 #define __SIZEOF_PTHREAD_ATTR_T 36
-#define __SIZEOF_PTHREAD_MUTEX_T 24
 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-#define __SIZEOF_PTHREAD_COND_T 48
 #define __SIZEOF_PTHREAD_COND_COMPAT_T 12
 #define __SIZEOF_PTHREAD_CONDATTR_T 4
 #define __SIZEOF_PTHREAD_RWLOCK_T 32
@@ -48,34 +47,8 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is not exposed on purpose.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-    unsigned int __nusers;
-    __extension__ union
-    {
-      int __spins;
-      __pthread_slist_t __list;
-    };
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
@@ -89,22 +62,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/sh/nptl/bits/thread-shared-types.h b/sysdeps/sh/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..3f4cf8e
--- /dev/null
+++ b/sysdeps/sh/nptl/bits/thread-shared-types.h
@@ -0,0 +1,78 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#include <bits/wordsize.h>
+
+#define __SIZEOF_PTHREAD_MUTEX_T 24
+#define __SIZEOF_PTHREAD_COND_T 48
+
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+  unsigned int __nusers;
+  __extension__ union
+  {
+    int __spins;
+    __pthread_slist_t __list;
+  };
+};
+
+#define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;         \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];   \
+  long int __align;                       
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/sparc/nptl/bits/pthreadtypes.h b/sysdeps/sparc/nptl/bits/pthreadtypes.h
index 6faf8b2..f787256 100644
--- a/sysdeps/sparc/nptl/bits/pthreadtypes.h
+++ b/sysdeps/sparc/nptl/bits/pthreadtypes.h
@@ -20,12 +20,11 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <bits/wordsize.h>
+#include <bits/pthreadtypes-common.h>
 
 #if __WORDSIZE == 64
 # define __SIZEOF_PTHREAD_ATTR_T 56
-# define __SIZEOF_PTHREAD_MUTEX_T 40
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 56
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -33,9 +32,7 @@
 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
 #else
 # define __SIZEOF_PTHREAD_ATTR_T 36
-# define __SIZEOF_PTHREAD_MUTEX_T 24
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 32
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -60,51 +57,8 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-#if __WORDSIZE == 64
-typedef struct __pthread_internal_list
-{
-  struct __pthread_internal_list *__prev;
-  struct __pthread_internal_list *__next;
-} __pthread_list_t;
-#else
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-#endif
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is deliberately not exposed.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-#if __WORDSIZE == 64
-    unsigned int __nusers;
-#endif
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-#if __WORDSIZE == 64
-    int __spins;
-    __pthread_list_t __list;
-# define __PTHREAD_MUTEX_HAVE_PREV	1
-#else
-    unsigned int __nusers;
-    __extension__ union
-    {
-      int __spins;
-      __pthread_slist_t __list;
-    };
-#endif
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
@@ -118,22 +72,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is deliberately not exposed.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/sparc/nptl/bits/thread-shared-types.h b/sysdeps/sparc/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..828770d
--- /dev/null
+++ b/sysdeps/sparc/nptl/bits/thread-shared-types.h
@@ -0,0 +1,103 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#include <bits/wordsize.h>
+
+
+#if __WORDSIZE == 64
+# define __SIZEOF_PTHREAD_MUTEX_T 40
+# define __SIZEOF_PTHREAD_COND_T 48
+#else
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_COND_T 48
+#endif
+
+#if __WORDSIZE == 64
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+#else
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+#endif
+
+
+/* Data structure for mutex handling. */
+
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+#if __WORDSIZE == 64
+  unsigned int __nusers;
+#endif
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+#if __WORDSIZE == 64
+  int __spins;
+  __pthread_list_t __list;
+# define __PTHREAD_MUTEX_HAVE_PREV	1
+#else
+  unsigned int __nusers;
+  __extension__ union
+  {
+    int __spins;
+    __pthread_slist_t __list;
+  };
+#endif
+};
+
+# define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;           \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];   \
+  long int __align;                       
+
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/tile/nptl/bits/pthreadtypes.h b/sysdeps/tile/nptl/bits/pthreadtypes.h
index 1f6553d..2c102e7 100644
--- a/sysdeps/tile/nptl/bits/pthreadtypes.h
+++ b/sysdeps/tile/nptl/bits/pthreadtypes.h
@@ -21,12 +21,11 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <bits/wordsize.h>
+#include <bits/pthreadtypes-common.h>
 
 #if __WORDSIZE == 64
 # define __SIZEOF_PTHREAD_ATTR_T 56
-# define __SIZEOF_PTHREAD_MUTEX_T 40
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 56
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -34,9 +33,7 @@
 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
 #else
 # define __SIZEOF_PTHREAD_ATTR_T 36
-# define __SIZEOF_PTHREAD_MUTEX_T 24
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 32
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -60,51 +57,9 @@ typedef union pthread_attr_t pthread_attr_t;
 # define __have_pthread_attr_t	1
 #endif
 
-#if __WORDSIZE == 64
-typedef struct __pthread_internal_list
-{
-  struct __pthread_internal_list *__prev;
-  struct __pthread_internal_list *__next;
-} __pthread_list_t;
-#else
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-#endif
-
 
 /* Data structures for mutex handling.  The structure of the attribute
    type is not exposed on purpose.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-#if __WORDSIZE == 64
-    unsigned int __nusers;
-#endif
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-#if __WORDSIZE == 64
-    int __spins;
-    __pthread_list_t __list;
-# define __PTHREAD_MUTEX_HAVE_PREV	1
-#else
-    unsigned int __nusers;
-    __extension__ union
-    {
-      int __spins;
-      __pthread_slist_t __list;
-    };
-#endif
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 typedef union
 {
@@ -118,22 +73,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/tile/nptl/bits/thread-shared-types.h b/sysdeps/tile/nptl/bits/thread-shared-types.h
new file mode 100644
index 0000000..494e374
--- /dev/null
+++ b/sysdeps/tile/nptl/bits/thread-shared-types.h
@@ -0,0 +1,101 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#include <bits/wordsize.h>
+
+
+#if __WORDSIZE == 64
+# define __SIZEOF_PTHREAD_MUTEX_T 40
+# define __SIZEOF_PTHREAD_COND_T 48
+#else
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_COND_T 48
+#endif
+
+#if __WORDSIZE == 64
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+#else
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+#endif
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+#if __WORDSIZE == 64
+  unsigned int __nusers;
+#endif
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+#if __WORDSIZE == 64
+  int __spins;
+  __pthread_list_t __list;
+# define __PTHREAD_MUTEX_HAVE_PREV	1
+#else
+  unsigned int __nusers;
+  __extension__ union
+  {
+    int __spins;
+    __pthread_slist_t __list;
+  };
+#endif
+};
+
+#define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;        \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];  \
+  long int __align;
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h b/sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h
index 7121d0b..41dc525 100644
--- a/sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h
+++ b/sysdeps/unix/sysv/linux/alpha/bits/pthreadtypes.h
@@ -19,10 +19,10 @@
 #ifndef _BITS_PTHREADTYPES_H
 #define _BITS_PTHREADTYPES_H	1
 
+#include <bits/pthreadtypes-common.h>
+
 #define __SIZEOF_PTHREAD_ATTR_T		56
-#define __SIZEOF_PTHREAD_MUTEX_T	40
 #define __SIZEOF_PTHREAD_MUTEXATTR_T	4
-#define __SIZEOF_PTHREAD_COND_T		48
 #define __SIZEOF_PTHREAD_CONDATTR_T	4
 #define __SIZEOF_PTHREAD_RWLOCK_T	56
 #define __SIZEOF_PTHREAD_RWLOCKATTR_T	8
@@ -45,33 +45,9 @@ typedef union pthread_attr_t pthread_attr_t;
 # define __have_pthread_attr_t	1
 #endif
 
-typedef struct __pthread_internal_list
-{
-  struct __pthread_internal_list *__prev;
-  struct __pthread_internal_list *__next;
-} __pthread_list_t;
-
 
 /* Data structures for mutex handling.  The structure of the attribute
    type is deliberately not exposed.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-    unsigned int __nusers;
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-    int __spins;
-    __pthread_list_t __list;
-#define __PTHREAD_MUTEX_HAVE_PREV	1
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 /* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
 #define __PTHREAD_SPINS 0
@@ -85,22 +61,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is deliberately not exposed.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/thread-shared-types.h b/sysdeps/unix/sysv/linux/alpha/bits/thread-shared-types.h
new file mode 100644
index 0000000..0ee49ca
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/bits/thread-shared-types.h
@@ -0,0 +1,77 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+
+#define __SIZEOF_PTHREAD_MUTEX_T 40
+#define __SIZEOF_PTHREAD_COND_T 48
+
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+  unsigned int __nusers;
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+  int __spins;
+  __pthread_list_t __list;
+#define __PTHREAD_MUTEX_HAVE_PREV	1
+} __data;
+
+
+#define __PTHREAD_MUTEX_T_CONTENT            \
+  struct __pthread_mutex_s __data;            \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];      \
+  long int __align;
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h b/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h
index 7cbdb2c..fb6e145 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h
@@ -20,12 +20,11 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <bits/wordsize.h>
+#include <bits/pthreadtypes-common.h>
 
 #if __WORDSIZE == 64
 # define __SIZEOF_PTHREAD_ATTR_T 56
-# define __SIZEOF_PTHREAD_MUTEX_T 40
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 56
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -33,9 +32,7 @@
 # define __SIZEOF_PTHREAD_BARRIERATTR_T 4
 #else
 # define __SIZEOF_PTHREAD_ATTR_T 36
-# define __SIZEOF_PTHREAD_MUTEX_T 24
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 32
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -76,44 +73,6 @@ typedef struct __pthread_internal_slist
 
 /* Data structures for mutex handling.  The structure of the attribute
    type is deliberately not exposed.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-#if __WORDSIZE == 64
-    unsigned int __nusers;
-#endif
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-#if __WORDSIZE == 64
-    short __spins;
-    short __elision;
-    __pthread_list_t __list;
-# define __PTHREAD_MUTEX_HAVE_PREV	1
-# define __PTHREAD_SPINS             0, 0
-#else
-    unsigned int __nusers;
-    __extension__ union
-    {
-      struct
-      {
-	short __espins;
-	short __elision;
-# define __spins __elision_data.__espins
-# define __elision __elision_data.__elision
-# define __PTHREAD_SPINS         { 0, 0 }
-      } __elision_data;
-      __pthread_slist_t __list;
-    };
-#endif
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 typedef union
 {
@@ -124,22 +83,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is deliberately not exposed.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/thread-shared-types.h b/sysdeps/unix/sysv/linux/powerpc/bits/thread-shared-types.h
new file mode 100644
index 0000000..ed93e90
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/thread-shared-types.h
@@ -0,0 +1,110 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	1
+
+#include <bits/wordsize.h>
+
+
+#if __WORDSIZE == 64
+# define __SIZEOF_PTHREAD_MUTEX_T 40
+# define __SIZEOF_PTHREAD_COND_T 48
+#else
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_COND_T 48
+#endif
+
+#if __WORDSIZE == 64
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+#else
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+#endif
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+#if __WORDSIZE == 64
+  unsigned int __nusers;
+#endif
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+#if __WORDSIZE == 64
+  short __spins;
+  short __elision;
+  __pthread_list_t __list;
+# define __PTHREAD_MUTEX_HAVE_PREV	1
+# define __PTHREAD_SPINS             0, 0
+#else
+  unsigned int __nusers;
+  __extension__ union
+  {
+    struct
+    {
+      short __espins;
+      short __elision;
+# define __spins __elision_data.__espins
+# define __elision __elision_data.__elision
+# define __PTHREAD_SPINS         { 0, 0 }
+    } __elision_data;
+    __pthread_slist_t __list;
+  };
+#endif
+};
+
+# define __PTHREAD_MUTEX_T_CONTENT         \
+  struct __pthread_mutex_s __data;           \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];   \
+  long int __align;                       
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */
diff --git a/sysdeps/x86/bits/pthreadtypes.h b/sysdeps/x86/bits/pthreadtypes.h
index 4460615..1b7d567 100644
--- a/sysdeps/x86/bits/pthreadtypes.h
+++ b/sysdeps/x86/bits/pthreadtypes.h
@@ -19,13 +19,12 @@
 #define _BITS_PTHREADTYPES_H	1
 
 #include <bits/wordsize.h>
+#include <bits/pthreadtypes-common.h>
 
 #ifdef __x86_64__
 # if __WORDSIZE == 64
 #  define __SIZEOF_PTHREAD_ATTR_T 56
-#  define __SIZEOF_PTHREAD_MUTEX_T 40
 #  define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-#  define __SIZEOF_PTHREAD_COND_T 48
 #  define __SIZEOF_PTHREAD_CONDATTR_T 4
 #  define __SIZEOF_PTHREAD_RWLOCK_T 56
 #  define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -33,9 +32,7 @@
 #  define __SIZEOF_PTHREAD_BARRIERATTR_T 4
 # else
 #  define __SIZEOF_PTHREAD_ATTR_T 32
-#  define __SIZEOF_PTHREAD_MUTEX_T 32
 #  define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-#  define __SIZEOF_PTHREAD_COND_T 48
 #  define __SIZEOF_PTHREAD_CONDATTR_T 4
 #  define __SIZEOF_PTHREAD_RWLOCK_T 44
 #  define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -44,9 +41,7 @@
 # endif
 #else
 # define __SIZEOF_PTHREAD_ATTR_T 36
-# define __SIZEOF_PTHREAD_MUTEX_T 24
 # define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-# define __SIZEOF_PTHREAD_COND_T 48
 # define __SIZEOF_PTHREAD_CONDATTR_T 4
 # define __SIZEOF_PTHREAD_RWLOCK_T 32
 # define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
@@ -71,61 +66,8 @@ typedef union pthread_attr_t pthread_attr_t;
 #endif
 
 
-#ifdef __x86_64__
-typedef struct __pthread_internal_list
-{
-  struct __pthread_internal_list *__prev;
-  struct __pthread_internal_list *__next;
-} __pthread_list_t;
-#else
-typedef struct __pthread_internal_slist
-{
-  struct __pthread_internal_slist *__next;
-} __pthread_slist_t;
-#endif
-
-
 /* Data structures for mutex handling.  The structure of the attribute
    type is not exposed on purpose.  */
-typedef union
-{
-  struct __pthread_mutex_s
-  {
-    int __lock;
-    unsigned int __count;
-    int __owner;
-#ifdef __x86_64__
-    unsigned int __nusers;
-#endif
-    /* KIND must stay at this position in the structure to maintain
-       binary compatibility.  */
-    int __kind;
-#ifdef __x86_64__
-    short __spins;
-    short __elision;
-    __pthread_list_t __list;
-# define __PTHREAD_MUTEX_HAVE_PREV	1
-/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
-# define __PTHREAD_SPINS             0, 0
-#else
-    unsigned int __nusers;
-    __extension__ union
-    {
-      struct
-      {
-	short __espins;
-	short __elision;
-# define __spins __elision_data.__espins
-# define __elision __elision_data.__elision
-# define __PTHREAD_SPINS         { 0, 0 }
-      } __elision_data;
-      __pthread_slist_t __list;
-    };
-#endif
-  } __data;
-  char __size[__SIZEOF_PTHREAD_MUTEX_T];
-  long int __align;
-} pthread_mutex_t;
 
 typedef union
 {
@@ -136,22 +78,6 @@ typedef union
 
 /* Data structure for conditional variable handling.  The structure of
    the attribute type is not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    int __lock;
-    unsigned int __futex;
-    __extension__ unsigned long long int __total_seq;
-    __extension__ unsigned long long int __wakeup_seq;
-    __extension__ unsigned long long int __woken_seq;
-    void *__mutex;
-    unsigned int __nwaiters;
-    unsigned int __broadcast_seq;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
 
 typedef union
 {
diff --git a/sysdeps/x86/bits/thread-shared-types.h b/sysdeps/x86/bits/thread-shared-types.h
new file mode 100644
index 0000000..dba6563
--- /dev/null
+++ b/sysdeps/x86/bits/thread-shared-types.h
@@ -0,0 +1,116 @@
+/* Copyright (C) 2002-2015 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/>.  */
+
+/* This header contains macros definition required for 
+   the declaration of pthread_mutex_t and pthread_cond_t, 
+   both needed by C11 types mtx_t and cnd_t. */
+
+#ifndef _BITS_THREAD_SHARED_TYPES_H
+#define _BITS_THREAD_SHARED_TYPES_H	  1
+
+#include <bits/wordsize.h>
+
+#ifdef __x86_64__
+# if __WORDSIZE == 64
+#  define __SIZEOF_PTHREAD_MUTEX_T 40
+#  define __SIZEOF_PTHREAD_COND_T 48
+# else
+#  define __SIZEOF_PTHREAD_MUTEX_T 32
+#  define __SIZEOF_PTHREAD_COND_T 48
+# endif
+#else
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_COND_T 48
+#endif
+
+#ifdef __x86_64__
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+#else
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+#endif
+
+
+/* Data structure for mutex handling. */
+
+struct __pthread_mutex_s
+{
+  int __lock;
+  unsigned int __count;
+  int __owner;
+#ifdef __x86_64__
+  unsigned int __nusers;
+#endif
+  /* KIND must stay at this position in the structure to maintain
+     binary compatibility.  */
+  int __kind;
+#ifdef __x86_64__
+  short __spins;
+  short __elision;
+  __pthread_list_t __list;
+# define __PTHREAD_MUTEX_HAVE_PREV	1
+/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
+# define __PTHREAD_SPINS             0, 0
+#else
+  unsigned int __nusers;
+  __extension__ union
+  {
+    struct
+    {
+      short __espins;
+      short __elision;
+# define __spins __elision_data.__espins
+# define __elision __elision_data.__elision
+# define __PTHREAD_SPINS         { 0, 0 }
+    } __elision_data;
+    __pthread_slist_t __list;
+  };
+#endif
+};
+
+
+# define __PTHREAD_MUTEX_T_CONTENT            \
+  struct __pthread_mutex_s __data;            \
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];      \
+  long int __align;
+
+
+/* Data structure for conditional variable handling */
+
+#define __PTHREAD_COND_T_CONTENT                          \
+  struct                                                  \
+  {                                                       \
+    int __lock;                                           \
+    unsigned int __futex;                                 \
+    __extension__ unsigned long long int __total_seq;     \
+    __extension__ unsigned long long int __wakeup_seq;    \
+    __extension__ unsigned long long int __woken_seq;     \
+    void *__mutex;                                        \
+    unsigned int __nwaiters;                              \
+    unsigned int __broadcast_seq;                         \
+  } __data;                                               \
+  char __size[__SIZEOF_PTHREAD_COND_T];                   \
+  __extension__ long long int __align;
+
+
+#endif	/* bits/thread-shared-types.h */

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