From 245a11d7bd3bc44cd2b9f8598516287393705f76 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Mon, 14 May 2012 16:48:59 -0700 Subject: Add __PTHREAD_RWLOCK_INT_FLAGS_SHARED --- nptl/sysdeps/pthread/pthread.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'nptl/sysdeps/pthread') diff --git a/nptl/sysdeps/pthread/pthread.h b/nptl/sysdeps/pthread/pthread.h index fcc0ce846b..88c7c257ae 100644 --- a/nptl/sysdeps/pthread/pthread.h +++ b/nptl/sysdeps/pthread/pthread.h @@ -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 } } -- cgit v1.2.3