Add __PTHREAD_RWLOCK_INT_FLAGS_SHARED

This commit is contained in:
H.J. Lu 2012-05-14 16:48:59 -07:00
parent 0b254d8f3d
commit 245a11d7bd
2 changed files with 17 additions and 1 deletions

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@ -1,3 +1,10 @@
2012-05-14 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/pthread/pthread.h (__PTHREAD_RWLOCK_INT_FLAGS_SHARED):
New.
(PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP): Check
__PTHREAD_RWLOCK_INT_FLAGS_SHARED instead of __WORDSIZE.
2012-05-14 H.J. Lu <hongjiu.lu@intel.com>
* shlib-versions: Move x86_64-.*-linux.* entry to ...

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@ -118,11 +118,20 @@ enum
PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_READER_NP
};
/* Define __PTHREAD_RWLOCK_INT_FLAGS_SHARED to 1 if pthread_rwlock_t
has the shared field. All 64-bit architectures have the shared field
in pthread_rwlock_t. */
#ifndef __PTHREAD_RWLOCK_INT_FLAGS_SHARED
# if __WORDSIZE == 64
# define __PTHREAD_RWLOCK_INT_FLAGS_SHARED 1
# endif
#endif
/* Read-write lock initializers. */
# define PTHREAD_RWLOCK_INITIALIZER \
{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }
# ifdef __USE_GNU
# if __WORDSIZE == 64
# ifdef __PTHREAD_RWLOCK_INT_FLAGS_SHARED
# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP } }