sysdeps/x86/nptl/bits/pthreadtypes-arch.h

   1 /* Copyright (C) 2002-2018 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 #ifdef __x86_64__
  24 # if __WORDSIZE == 64
  25 #  define __SIZEOF_PTHREAD_MUTEX_T 40
  26 #  define __SIZEOF_PTHREAD_ATTR_T 56
  27 #  define __SIZEOF_PTHREAD_MUTEX_T 40
  28 #  define __SIZEOF_PTHREAD_RWLOCK_T 56
  29 #  define __SIZEOF_PTHREAD_BARRIER_T 32
  30 # else
  31 #  define __SIZEOF_PTHREAD_MUTEX_T 32
  32 #  define __SIZEOF_PTHREAD_ATTR_T 32
  33 #  define __SIZEOF_PTHREAD_MUTEX_T 32
  34 #  define __SIZEOF_PTHREAD_RWLOCK_T 44
  35 #  define __SIZEOF_PTHREAD_BARRIER_T 20
  36 # endif
  37 #else
  38 # define __SIZEOF_PTHREAD_MUTEX_T 24
  39 # define __SIZEOF_PTHREAD_ATTR_T 36
  40 # define __SIZEOF_PTHREAD_MUTEX_T 24
  41 # define __SIZEOF_PTHREAD_RWLOCK_T 32
  42 # define __SIZEOF_PTHREAD_BARRIER_T 20
  43 #endif
  44 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4
  45 #define __SIZEOF_PTHREAD_COND_T 48
  46 #define __SIZEOF_PTHREAD_CONDATTR_T 4
  47 #define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
  48 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4
  49
  50 /* Definitions for internal mutex struct.  */
  51 #define __PTHREAD_COMPAT_PADDING_MID
  52 #define __PTHREAD_COMPAT_PADDING_END
  53 #define __PTHREAD_MUTEX_LOCK_ELISION    1
  54 #ifdef __x86_64__
  55 # define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  0
  56 # define __PTHREAD_MUTEX_USE_UNION          0
  57 #else
  58 # define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  1
  59 # define __PTHREAD_MUTEX_USE_UNION          1
  60 #endif
  61
  62 #define __LOCK_ALIGNMENT
  63 #define __ONCE_ALIGNMENT
  64
  65 struct __pthread_rwlock_arch_t
  66 {
  67   unsigned int __readers;
  68   unsigned int __writers;
  69   unsigned int __wrphase_futex;
  70   unsigned int __writers_futex;
  71   unsigned int __pad3;
  72   unsigned int __pad4;
  73 #ifdef __x86_64__
  74   int __cur_writer;
  75   int __shared;
  76   signed char __rwelision;
  77 # ifdef  __ILP32__
  78   unsigned char __pad1[3];
  79 #  define __PTHREAD_RWLOCK_ELISION_EXTRA 0, { 0, 0, 0 }
  80 # else
  81   unsigned char __pad1[7];
  82 #  define __PTHREAD_RWLOCK_ELISION_EXTRA 0, { 0, 0, 0, 0, 0, 0, 0 }
  83 # endif
  84   unsigned long int __pad2;
  85   /* FLAGS must stay at this position in the structure to maintain
  86      binary compatibility.  */
  87   unsigned int __flags;
  88 # define __PTHREAD_RWLOCK_INT_FLAGS_SHARED      1
  89 #else
  90   /* FLAGS must stay at this position in the structure to maintain
  91      binary compatibility.  */
  92   unsigned char __flags;
  93   unsigned char __shared;
  94   signed char __rwelision;
  95 # define __PTHREAD_RWLOCK_ELISION_EXTRA 0
  96   unsigned char __pad2;
  97   int __cur_writer;
  98 #endif
  99 };
 100
 101 #ifndef __x86_64__
 102 /* Extra attributes for the cleanup functions.  */
 103 # define __cleanup_fct_attribute __attribute__ ((__regparm__ (1)))
 104 #endif
 105
 106 #endif  /* bits/pthreadtypes.h */