sysdeps/s390/nptl/bits/pthreadtypes-arch.h

   1 /* Copyright (C) 2003-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _BITS_PTHREADTYPES_ARCH_H
  19 #define _BITS_PTHREADTYPES_ARCH_H       1
  20
  21 #include <bits/wordsize.h>
  22
  23 #if __WORDSIZE == 64
  24 # define __SIZEOF_PTHREAD_ATTR_T 56
  25 # define __SIZEOF_PTHREAD_MUTEX_T 40
  26 # define __SIZEOF_PTHREAD_RWLOCK_T 56
  27 # define __SIZEOF_PTHREAD_BARRIER_T 32
  28 #else
  29 # define __SIZEOF_PTHREAD_ATTR_T 36
  30 # define __SIZEOF_PTHREAD_MUTEX_T 24
  31 # define __SIZEOF_PTHREAD_RWLOCK_T 32
  32 # define __SIZEOF_PTHREAD_BARRIER_T 20
  33 #endif
  34 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
  35 #define __SIZEOF_PTHREAD_CONDATTR_T 4
  36 #define __SIZEOF_PTHREAD_COND_T 48
  37 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
  38 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
  39
  40 /* Definitions for internal mutex struct.  */
  41 #define __PTHREAD_COMPAT_PADDING_MID
  42 #define __PTHREAD_COMPAT_PADDING_END
  43 #define __PTHREAD_MUTEX_LOCK_ELISION    1
  44 #define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  (__WORDSIZE != 64)
  45 #define __PTHREAD_MUTEX_USE_UNION          (__WORDSIZE != 64)
  46
  47 #define __LOCK_ALIGNMENT
  48 #define __ONCE_ALIGNMENT
  49
  50 struct __pthread_rwlock_arch_t
  51 {
  52   unsigned int __readers;
  53   unsigned int __writers;
  54   unsigned int __wrphase_futex;
  55   unsigned int __writers_futex;
  56   unsigned int __pad3;
  57   unsigned int __pad4;
  58 #if __WORDSIZE == 64
  59   int __cur_writer;
  60   int __shared;
  61   unsigned long int __pad1;
  62   unsigned long int __pad2;
  63   /* FLAGS must stay at this position in the structure to maintain
  64      binary compatibility.  */
  65   unsigned int __flags;
  66 # else
  67   unsigned char __pad1;
  68   unsigned char __pad2;
  69   unsigned char __shared;
  70   /* FLAGS must stay at this position in the structure to maintain
  71      binary compatibility.  */
  72   unsigned char __flags;
  73   int __cur_writer;
  74 #endif
  75 };
  76
  77 #define __PTHREAD_RWLOCK_ELISION_EXTRA 0
  78
  79 #endif  /* bits/pthreadtypes.h */