| /* Copyright (C) 2005-2018 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 __PTHREAD_MUTEX_NUSERS_AFTER_KIND 1 |
| #define __PTHREAD_MUTEX_USE_UNION 1 |
| |
| #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; |
| }; |
| |
| #define __PTHREAD_RWLOCK_ELISION_EXTRA 0 |
| |
| #endif /* bits/pthreadtypes.h */ |
