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, 89 insertions, 230 deletions

diff --git a/sysdeps/hppa/nptl/bits/pthreadtypes-arch.h b/sysdeps/hppa/nptl/bits/pthreadtypes-arch.h
new file mode 100644
index 0000000000..131e30e93d
--- /dev/null
+++ b/sysdeps/hppa/nptl/bits/pthreadtypes-arch.h
@@ -0,0 +1,89 @@
+/* Copyright (C) 2005-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _BITS_PTHREADTYPES_ARCH_H
+#define _BITS_PTHREADTYPES_ARCH_H	1
+
+/* Linuxthread type sizes (bytes):
+   sizeof(pthread_attr_t) = 0x24 (36)
+   sizeof(pthread_barrier_t) = 0x30 (48)
+   sizeof(pthread_barrierattr_t) = 0x4 (4)
+   sizeof(pthread_cond_t) = 0x30 (48)
+   sizeof(pthread_condattr_t) = 0x4 (4)
+   sizeof(pthread_mutex_t) = 0x30 (48)
+   sizeof(pthread_mutexattr_t) = 0x4 (4)
+   sizeof(pthread_rwlock_t) = 0x40 (64)
+   sizeof(pthread_rwlockattr_t) = 0x8 (8)
+   sizeof(pthread_spinlock_t) = 0x10 (16) */
+
+#define __SIZEOF_PTHREAD_ATTR_T 36
+#define __SIZEOF_PTHREAD_MUTEX_T 48
+#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_MUTEXATTR_T 4
+#define __SIZEOF_PTHREAD_RWLOCK_T 64
+#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+
+/* The old 4-word 16-byte aligned lock. This is initalized
+   to all ones by the Linuxthreads PTHREAD_MUTEX_INITIALIZER.
+   Unused in NPTL.  */
+#define __PTHREAD_COMPAT_PADDING_MID  int __compat_padding[4]
+/* Two more words are left before the NPTL
+   pthread_mutex_t is larger than Linuxthreads.  */
+#define __PTHREAD_COMPAT_PADDING_END  int __reserved[2]
+#define __PTHREAD_MUTEX_LOCK_ELISION    0
+
+#define __LOCK_ALIGNMENT __attribute__ ((__aligned__(16)))
+#define __ONCE_ALIGNMENT
+
+struct __pthread_rwlock_arch_t
+{
+  /* In the old Linuxthreads pthread_rwlock_t, this is the
+     start of the 4-word 16-byte aligned lock structure. The
+     next four words are all set to 1 by the Linuxthreads
+     PTHREAD_RWLOCK_INITIALIZER. We ignore them in NPTL.  */
+  int __compat_padding[4] __attribute__ ((__aligned__(16)));
+  unsigned int __readers;
+  unsigned int __writers;
+  unsigned int __wrphase_futex;
+  unsigned int __writers_futex;
+  unsigned int __pad3;
+  unsigned int __pad4;
+  int __cur_writer;
+  /* An unused word, reserved for future use. It was added
+     to maintain the location of the flags from the Linuxthreads
+     layout of this structure.  */
+  int __reserved1;
+  /* FLAGS must stay at this position in the structure to maintain
+     binary compatibility.  */
+  unsigned char __pad2;
+  unsigned char __pad1;
+  unsigned char __shared;
+  unsigned char __flags;
+  /* The NPTL pthread_rwlock_t is 4 words smaller than the
+     Linuxthreads version. One word is in the middle of the
+     structure, the other three are at the end.  */
+  int __reserved2;
+  int __reserved3;
+  int __reserved4;
+} __data;
+
+#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
+
+#endif	/* bits/pthreadtypes.h */
diff --git a/sysdeps/hppa/nptl/bits/pthreadtypes.h b/sysdeps/hppa/nptl/bits/pthreadtypes.h
deleted file mode 100644
index e37111a2f3..0000000000
--- a/sysdeps/hppa/nptl/bits/pthreadtypes.h
+++ /dev/null
@@ -1,230 +0,0 @@
-/* Copyright (C) 2005-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _BITS_PTHREADTYPES_H
-#define _BITS_PTHREADTYPES_H	1
-
-/* Linuxthread type sizes (bytes):
-   sizeof(pthread_attr_t) = 0x24 (36)
-   sizeof(pthread_barrier_t) = 0x30 (48)
-   sizeof(pthread_barrierattr_t) = 0x4 (4)
-   sizeof(pthread_cond_t) = 0x30 (48)
-   sizeof(pthread_condattr_t) = 0x4 (4)
-   sizeof(pthread_mutex_t) = 0x30 (48)
-   sizeof(pthread_mutexattr_t) = 0x4 (4)
-   sizeof(pthread_rwlock_t) = 0x40 (64)
-   sizeof(pthread_rwlockattr_t) = 0x8 (8)
-   sizeof(pthread_spinlock_t) = 0x10 (16) */
-
-#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
-
-/* Thread identifiers.  The structure of the attribute type is not
-   exposed on purpose.  */
-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 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 with static initializers.  */
-    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
-
-typedef union
-{
-  char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
-  long int __align;
-} pthread_mutexattr_t;
-
-
-/* Data structure for conditional variable handling.  The structure of
-   the attribute type is not exposed on purpose. However, this structure
-   is exposed via PTHREAD_COND_INITIALIZER, and because of this, the
-   Linuxthreads version sets the first four ints to one. In the NPTL
-   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
-{
-  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 not exposed on purpose.  */
-typedef union
-{
-  struct
-  {
-    /* In the old Linuxthreads pthread_rwlock_t, this is the
-       start of the 4-word 16-byte aligned lock structure. The
-       next four words are all set to 1 by the Linuxthreads
-       PTHREAD_RWLOCK_INITIALIZER. We ignore them in NPTL.  */
-    int __compat_padding[4] __attribute__ ((__aligned__(16)));
-    unsigned int __readers;
-    unsigned int __writers;
-    unsigned int __wrphase_futex;
-    unsigned int __writers_futex;
-    unsigned int __pad3;
-    unsigned int __pad4;
-    int __cur_writer;
-    /* An unused word, reserved for future use. It was added
-       to maintain the location of the flags from the Linuxthreads
-       layout of this structure.  */
-    int __reserved1;
-    /* FLAGS must stay at this position in the structure to maintain
-       binary compatibility.  */
-    unsigned char __pad2;
-    unsigned char __pad1;
-    unsigned char __shared;
-    unsigned char __flags;
-    /* The NPTL pthread_rwlock_t is 4 words smaller than the
-       Linuxthreads version. One word is in the middle of the
-       structure, the other three are at the end.  */
-    int __reserved2;
-    int __reserved3;
-    int __reserved4;
-  } __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 */