2007-11-20 Neal H. Walfield <neal@gnu.org>

	Merge changes from mainline Hurd.  Update L4 bits to compile with
	those changes.

	* sysdeps/l4/pt-block.c (__pthread_block): Call l4_receive, not
	L4_Receive.
	* sysdeps/l4/pt-create-np.c (pthread_create_from_l4_tid_np): Don't
	pass TID to __pthread_create_internal.  Emit a warning.
	* sysdeps/l4/pt-stack-alloc.c (allocate_page): Remove function.
	(__pthread_stack_alloc): Don't require that STACKSIZE is equal to
	__pthread_stacksize.  Call mmap.
	* sysdeps/l4/pt-thread-halt.c (__pthread_thread_halt): Take
	additional argument, need_dealloc.  Call __pthread_dealloc.  Stop
	the thread.
	* sysdeps/l4/hurd/pt-sysdep.c (init_routine): When calling
	__pthread_create_internal, don't pass the tid.
	* tests/test-1.c (main): Use pthread_mutex_init, not
	PTHREAD_MUTEX_INITIALIZER.

	* pthread/pt-alloc.c: Don't include <bits/atomic.h>.  Include
	<atomic.h>.
	(__pthread_free_threads): Make it an atomicptr_t, not an
	__atomicptr_t.
	(__pthread_alloc): Don't use __atomicptr_compare_and_swap, use
	atomic_compare_and_exchange_val_acq.
	* pthread/pt-create.c: Don't include <bits/atomic.h>.  Include
	<atomic.h>.
	(__pthread_total): Make it an atomic_fast32_t, not an __atomic_t.
	(__pthread_create_internal): Use atomic_increment and
	atomic_decrement, not __atomic_inc and __atomic_dec.
	* pthread/pt-dealloc.c: Don't include <bits/atomic.h>.  Include
	<atomic.h>.
	(__pthread_free_threads): Make it an atomicptr_t, not an
	__atomicptr_t.
	(__pthread_dealloc): Use atomic_compare_and_exchange_val_acq, not
	__atomicptr_compare_and_swap.
	* pthread/pt-exit.c: Don't include <bits/atomic.h>.  Include
	<atomic.h>.
	(pthread_exit): Use atomic_decrement_and_test, not
	__atomic_dec_and_test.
	* pthread/pt-internal.h: Don't include <bits/atomic.h>.  Include
	<atomic.h>.
	(__pthread_total): Make it an atomic_fast32_t, not an __atomic_t.
	* sysdeps/powerpc/bits/atomic.h: Remove file.
	* sysdeps/ia32/bits/atomic.h: Likewise.

1 files changed, 69 insertions, 0 deletions

diff --git a/include/semaphore.h b/include/semaphore.h
new file mode 100644
index 0000000..06c9e73
--- /dev/null
+++ b/include/semaphore.h
@@ -0,0 +1,69 @@
+/* Copyright (C) 2005 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SEMAPHORE_H
+#define _SEMAPHORE_H	1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+#include <bits/semaphore.h>
+
+#define SEM_FAILED ((void *) 0)
+
+typedef struct __semaphore sem_t;
+
+/* Initialize semaphore *SEM with value VALUE.  */
+extern int sem_init (sem_t *sem, int pshared, unsigned value);
+
+/* Destroy semaphore *SEM created with sem_init.  */
+extern int sem_destroy (sem_t *sem);
+
+/* Store the value of semaphore *SEM in *VALUE.  */
+extern int sem_getvalue (sem_t *__restrict sem, int *__restrict value);
+
+/* Perform a down operation on semaphore *SEM.  */
+extern int sem_wait (sem_t *sem);
+
+/* Perform a down operation on semaphore *SEM if it can be done so
+   without blocking.  */
+extern int sem_trywait (sem_t *sem);
+
+#ifdef __USE_XOPEN2K
+/* Perform a down operation on semaphore *SEM but don't wait longer
+   than TIMEOUT.  */
+extern int sem_timedwait (sem_t *__restrict sem,
+			  const struct timespec *__restrict timeout);
+#endif
+
+/* Perform an up operation on semaphore *SEM.  */
+extern int sem_post (sem_t *sem);
+
+/* Open a named semaphore.  */
+extern sem_t *sem_open (const char *name, int open_flags, ...);
+
+/* Close a semaphore returned by sem_open.  */
+extern int sem_close (sem_t *sem);
+
+/* Unlink a named semaphore.  */
+extern int sem_unlink (const char *name);
+
+__END_DECLS
+
+#endif /* semaphore.h */