Don't mark memory synchronisation functions as leaf

7 files changed, 45 insertions, 26 deletions

diff --git a/ChangeLog b/ChangeLog
index cd1f9ade1d..8526a41ca7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2011-10-27  Andreas Schwab  <schwab@redhat.com>
+
+	[BZ #13344]
+	* misc/sys/cdefs.h (__THROWNL): Define.
+	* posix/unistd.h: Use __THREADNL instead of __THREAD
+	for memory synchronization functions.
+
 2011-10-26  Roland McGrath  <roland@hack.frob.com>
 
 	[BZ #13349]
diff --git a/NEWS b/NEWS
index e0bb0eff24..6063060352 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,4 @@
-GNU C Library NEWS -- history of user-visible changes.  2011-10-20
+GNU C Library NEWS -- history of user-visible changes.  2011-10-27
 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
 See the end for copying conditions.
 
@@ -11,7 +11,7 @@ Version 2.15
 
   6779, 6783, 9696, 11589, 12403, 12847, 12868, 12852, 12874, 12885, 12892,
   12907, 12922, 12935, 13007, 13021, 13067, 13068, 13090, 13092, 13114,
-  13118, 13123, 13134, 13138, 13150, 13179, 13192, 13268, 13291
+  13118, 13123, 13134, 13138, 13150, 13179, 13192, 13268, 13291, 13344
 
 * New program pldd to list loaded object of a process
   Implemented by Ulrich Drepper.
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index 72073e8557..16cf557b39 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -38,7 +38,8 @@
 
 #ifdef __GNUC__
 
-/* All functions, except those with callbacks, are leaf functions.  */
+/* All functions, except those with callbacks or those that
+   synchronize memory, are leaf functions.  */
 # if __GNUC_PREREQ (4, 6) && !defined _LIBC
 #  define __LEAF , __leaf__
 #  define __LEAF_ATTR __attribute__ ((__leaf__))
@@ -54,13 +55,16 @@
    the -fexceptions options for C code as well.  */
 # if !defined __cplusplus && __GNUC_PREREQ (3, 3)
 #  define __THROW	__attribute__ ((__nothrow__ __LEAF))
+#  define __THROWNL	__attribute__ ((__nothrow__))
 #  define __NTH(fct)	__attribute__ ((__nothrow__ __LEAF)) fct
 # else
 #  if defined __cplusplus && __GNUC_PREREQ (2,8)
 #   define __THROW	throw ()
+#   define __THROWNL	throw ()
 #   define __NTH(fct)	__LEAF_ATTR fct throw ()
 #  else
 #   define __THROW
+#   define __THROWNL
 #   define __NTH(fct)	fct
 #  endif
 # endif
@@ -70,6 +74,7 @@
 # define __inline		/* No inline functions.  */
 
 # define __THROW
+# define __THROWNL
 # define __NTH(fct)	fct
 
 # define __const	const
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index f4b2f04c0c..6b483d6c74 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,10 @@
+2011-10-27  Andreas Schwab  <schwab@redhat.com>
+
+	[BZ #13344]
+	* sysdeps/pthread/pthread.h: Use __THREADNL instead of __THREAD
+	for memory synchronization functions.
+	* semaphore.h: Likewise.
+
 2011-10-24  Ulrich Drepper  <drepper@gmail.com>
 
 	* tst-cancel7.c: Avoid warning.
diff --git a/nptl/semaphore.h b/nptl/semaphore.h
index 4f13725b32..11caf664ab 100644
--- a/nptl/semaphore.h
+++ b/nptl/semaphore.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2011 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
@@ -64,10 +64,10 @@ extern int sem_timedwait (sem_t *__restrict __sem,
 #endif
 
 /* Test whether SEM is posted.  */
-extern int sem_trywait (sem_t *__sem) __THROW;
+extern int sem_trywait (sem_t *__sem) __THROWNL;
 
 /* Post SEM.  */
-extern int sem_post (sem_t *__sem) __THROW;
+extern int sem_post (sem_t *__sem) __THROWNL;
 
 /* Get current value of SEM and store it in *SVAL.  */
 extern int sem_getvalue (sem_t *__restrict __sem, int *__restrict __sval)
diff --git a/nptl/sysdeps/pthread/pthread.h b/nptl/sysdeps/pthread/pthread.h
index 4c83665452..a92428162d 100644
--- a/nptl/sysdeps/pthread/pthread.h
+++ b/nptl/sysdeps/pthread/pthread.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -225,7 +225,7 @@ __BEGIN_DECLS
 extern int pthread_create (pthread_t *__restrict __newthread,
 			   __const pthread_attr_t *__restrict __attr,
 			   void *(*__start_routine) (void *),
-			   void *__restrict __arg) __THROW __nonnull ((1, 3));
+			   void *__restrict __arg) __THROWNL __nonnull ((1, 3));
 
 /* Terminate calling thread.
 
@@ -740,22 +740,22 @@ extern int pthread_mutex_destroy (pthread_mutex_t *__mutex)
 
 /* Try locking a mutex.  */
 extern int pthread_mutex_trylock (pthread_mutex_t *__mutex)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 /* Lock a mutex.  */
 extern int pthread_mutex_lock (pthread_mutex_t *__mutex)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 #ifdef __USE_XOPEN2K
 /* Wait until lock becomes available, or specified time passes. */
 extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex,
 				    __const struct timespec *__restrict
-				    __abstime) __THROW __nonnull ((1, 2));
+				    __abstime) __THROWNL __nonnull ((1, 2));
 #endif
 
 /* Unlock a mutex.  */
 extern int pthread_mutex_unlock (pthread_mutex_t *__mutex)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 
 /* Get the priority ceiling of MUTEX.  */
@@ -879,37 +879,37 @@ extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock)
 
 /* Acquire read lock for RWLOCK.  */
 extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 /* Try to acquire read lock for RWLOCK.  */
 extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock)
-  __THROW __nonnull ((1));
+  __THROWNL __nonnull ((1));
 
 # ifdef __USE_XOPEN2K
 /* Try to acquire read lock for RWLOCK or return after specfied time.  */
 extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
 				       __const struct timespec *__restrict
-				       __abstime) __THROW __nonnull ((1, 2));
+				       __abstime) __THROWNL __nonnull ((1, 2));
 # endif
 
 /* Acquire write lock for RWLOCK.  */
 extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 /* Try to acquire write lock for RWLOCK.  */
 extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 # ifdef __USE_XOPEN2K
 /* Try to acquire write lock for RWLOCK or return after specfied time.  */
 extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
 				       __const struct timespec *__restrict
-				       __abstime) __THROW __nonnull ((1, 2));
+				       __abstime) __THROWNL __nonnull ((1, 2));
 # endif
 
 /* Unlock RWLOCK.  */
 extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 
 /* Functions for handling read-write lock attributes.  */
@@ -959,11 +959,11 @@ extern int pthread_cond_destroy (pthread_cond_t *__cond)
 
 /* Wake up one thread waiting for condition variable COND.  */
 extern int pthread_cond_signal (pthread_cond_t *__cond)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 /* Wake up all threads waiting for condition variables COND.  */
 extern int pthread_cond_broadcast (pthread_cond_t *__cond)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 /* Wait for condition variable COND to be signaled or broadcast.
    MUTEX is assumed to be locked before.
@@ -1034,15 +1034,15 @@ extern int pthread_spin_destroy (pthread_spinlock_t *__lock)
 
 /* Wait until spinlock LOCK is retrieved.  */
 extern int pthread_spin_lock (pthread_spinlock_t *__lock)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 /* Try to lock spinlock LOCK.  */
 extern int pthread_spin_trylock (pthread_spinlock_t *__lock)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 /* Release spinlock LOCK.  */
 extern int pthread_spin_unlock (pthread_spinlock_t *__lock)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 
 /* Functions to handle barriers.  */
@@ -1060,7 +1060,7 @@ extern int pthread_barrier_destroy (pthread_barrier_t *__barrier)
 
 /* Wait on barrier BARRIER.  */
 extern int pthread_barrier_wait (pthread_barrier_t *__barrier)
-     __THROW __nonnull ((1));
+     __THROWNL __nonnull ((1));
 
 
 /* Initialize barrier attribute ATTR.  */
diff --git a/posix/unistd.h b/posix/unistd.h
index 9b416979c4..01fb64a4dc 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -776,7 +776,7 @@ extern int setresgid (__gid_t __rgid, __gid_t __egid, __gid_t __sgid)
 /* Clone the calling process, creating an exact copy.
    Return -1 for errors, 0 to the new process,
    and the process ID of the new process to the old process.  */
-extern __pid_t fork (void) __THROW;
+extern __pid_t fork (void) __THROWNL;
 
 #if (defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K8) \
     || defined __USE_BSD