Move shared pthread definitions to common headers

This patch removes all the replicated pthread definition accross the
architectures and consolidates it on shared headers.  The new
organization is as follow:

  * Architecture specific definition (such as pthread types sizes) are
    place in the new pthreadtypes-arch.h header in arch specific path.

  * All shared structure definition are moved to a common NPTL header
    at sysdeps/nptl/bits/pthreadtypes.h (with now includes the arch
    specific one for internal definitions).

  * Also, for C11 future thread support, both mutex and condition
    definition are placed in a common header at
    sysdeps/nptl/bits/thread-shared-types.h.

It is also a refactor patch without expected functional changes.
Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu,
arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu,
m68k-linux-gnu, microblaze-linux-gnu, mips{64}-linux-gnu, nios2-linux-gnu,
powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu,
tile{pro,gx}-linux-gnu, and x86_64-linux-gnu).

	* posix/Makefile (headers): Add pthreadtypes-arch.h and
	thread-shared-types.h.
	* sysdeps/aarch64/nptl/bits/pthreadtypes-arch.h: New file: arch
	specific thread definition.
	* sysdeps/alpha/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/arm/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/hppa/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/ia64/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/m68k/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/microblaze/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/mips/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/nios2/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/powerpc/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/s390/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/sh/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/sparc/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/tile/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/x86/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/nptl/bits/thread-shared-types.h: New file: shared
	thread definition between POSIX and C11.
	* sysdeps/aarch64/nptl/bits/pthreadtypes.h.: Remove file.
	* sysdeps/alpha/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/arm/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/hppa/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/ia64/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/powerpc/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/x86/nptl/bits/pthreadtypes.h: Likewise.
	* sysdeps/nptl/bits/pthreadtypes.h: New file: common thread
	definitions shared across all architectures.

2 files changed, 70 insertions, 202 deletions

diff --git a/sysdeps/nios2/nptl/bits/pthreadtypes-arch.h b/sysdeps/nios2/nptl/bits/pthreadtypes-arch.h
new file mode 100644
index 0000000000..e2732f9771
--- /dev/null
+++ b/sysdeps/nios2/nptl/bits/pthreadtypes-arch.h
@@ -0,0 +1,70 @@
+/* Machine-specific pthread type layouts.  Nios II version.
+   Copyright (C) 2012-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _BITS_PTHREADTYPES_ARCH_H
+#define _BITS_PTHREADTYPES_ARCH_H	1
+
+#include <endian.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
+#define __SIZEOF_PTHREAD_BARRIER_T 20
+#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+
+/* Data structure for mutex handling. */
+#define __PTHREAD_COMPAT_PADDING_MID
+#define __PTHREAD_COMPAT_PADDING_END
+#define __PTHREAD_MUTEX_LOCK_ELISION    0
+
+#define __LOCK_ALIGNMENT
+#define __ONCE_ALIGNMENT
+
+struct __pthread_rwlock_arch_t
+{
+  unsigned int __readers;
+  unsigned int __writers;
+  unsigned int __wrphase_futex;
+  unsigned int __writers_futex;
+  unsigned int __pad3;
+  unsigned int __pad4;
+#if __BYTE_ORDER == __BIG_ENDIAN
+  unsigned char __pad1;
+  unsigned char __pad2;
+  unsigned char __shared;
+  /* FLAGS must stay at this position in the structure to maintain
+     binary compatibility.  */
+  unsigned char __flags;
+#else
+  /* FLAGS must stay at this position in the structure to maintain
+     binary compatibility.  */
+  unsigned char __flags;
+  unsigned char __shared;
+  unsigned char __pad1;
+  unsigned char __pad2;
+#endif
+  int __cur_writer;
+};
+
+#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
+
+#endif	/* bits/pthreadtypes.h */
diff --git a/sysdeps/nios2/nptl/bits/pthreadtypes.h b/sysdeps/nios2/nptl/bits/pthreadtypes.h
deleted file mode 100644
index 8247013b9e..0000000000
--- a/sysdeps/nios2/nptl/bits/pthreadtypes.h
+++ /dev/null
@@ -1,202 +0,0 @@
-/* Machine-specific pthread type layouts.  Nios II version.
-   Copyright (C) 2012-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _BITS_PTHREADTYPES_H
-#define _BITS_PTHREADTYPES_H	1
-
-#include <endian.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
-#define __SIZEOF_PTHREAD_BARRIER_T 20
-#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
-
-
-/* Thread identifiers.  The structure of the attribute type is
-   deliberately not exposed.  */
-typedef unsigned long int pthread_t;
-
-
-union pthread_attr_t
-{
-  char __size[__SIZEOF_PTHREAD_ATTR_T];
-  long int __align;
-};
-#ifndef __have_pthread_attr_t
-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 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 with static initializers.  */
-    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
-{
-  char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
-  long int __align;
-} pthread_mutexattr_t;
-
-/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
-#define __PTHREAD_SPINS 0
-
-
-/* Data structure for conditional variable handling.  The structure of
-   the attribute type is not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    __extension__ union
-    {
-      __extension__ unsigned long long int __wseq;
-      struct {
-	unsigned int __low;
-	unsigned int __high;
-      } __wseq32;
-    };
-    __extension__ union
-    {
-      __extension__ unsigned long long int __g1_start;
-      struct {
-	unsigned int __low;
-	unsigned int __high;
-      } __g1_start32;
-    };
-    unsigned int __g_refs[2];
-    unsigned int __g_size[2];
-    unsigned int __g1_orig_size;
-    unsigned int __wrefs;
-    unsigned int __g_signals[2];
-  } __data;
-  char __size[__SIZEOF_PTHREAD_COND_T];
-  __extension__ long long int __align;
-} pthread_cond_t;
-
-typedef union
-{
-  char __size[__SIZEOF_PTHREAD_CONDATTR_T];
-  long int __align;
-} pthread_condattr_t;
-
-
-/* Keys for thread-specific data */
-typedef unsigned int pthread_key_t;
-
-
-/* Once-only execution */
-typedef int pthread_once_t;
-
-
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K
-/* Data structure for read-write lock variable handling.  The
-   structure of the attribute type is deliberately not exposed.  */
-typedef union
-{
-  struct
-  {
-    unsigned int __readers;
-    unsigned int __writers;
-    unsigned int __wrphase_futex;
-    unsigned int __writers_futex;
-    unsigned int __pad3;
-    unsigned int __pad4;
-#if __BYTE_ORDER == __BIG_ENDIAN
-    unsigned char __pad1;
-    unsigned char __pad2;
-    unsigned char __shared;
-    /* FLAGS must stay at this position in the structure to maintain
-       binary compatibility.  */
-    unsigned char __flags;
-#else
-    /* FLAGS must stay at this position in the structure to maintain
-       binary compatibility.  */
-    unsigned char __flags;
-    unsigned char __shared;
-    unsigned char __pad1;
-    unsigned char __pad2;
-#endif
-    int __cur_writer;
-  } __data;
-  char __size[__SIZEOF_PTHREAD_RWLOCK_T];
-  long int __align;
-} pthread_rwlock_t;
-
-#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
-
-typedef union
-{
-  char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
-  long int __align;
-} pthread_rwlockattr_t;
-#endif
-
-
-#ifdef __USE_XOPEN2K
-/* POSIX spinlock data type.  */
-typedef volatile int pthread_spinlock_t;
-
-
-/* POSIX barriers data type.  The structure of the type is
-   deliberately not exposed.  */
-typedef union
-{
-  char __size[__SIZEOF_PTHREAD_BARRIER_T];
-  long int __align;
-} pthread_barrier_t;
-
-typedef union
-{
-  char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
-  int __align;
-} pthread_barrierattr_t;
-#endif
-
-
-#endif	/* bits/pthreadtypes.h */