--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/gthr-vxworks.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,154 @@
+/* Threads compatibility routines for libgcc2 and libobjc for VxWorks.  */
+/* Compile this one with gcc.  */
+/* Copyright (C) 1997, 1999, 2000, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Mike Stump <mrs@wrs.com>.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC 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 General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_GTHR_VXWORKS_H
+#define GCC_GTHR_VXWORKS_H
+
+#ifdef _LIBOBJC
+
+/* libobjc requires the optional pthreads component.  */
+#include "gthr-posix.h"
+
+#else
+#ifdef __cplusplus
+#define UNUSED(x)
+#else
+#define UNUSED(x) x __attribute__((unused))
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define __GTHREADS 1
+#define __gthread_active_p() 1
+
+/* Mutexes are easy, except that they need to be initialized at runtime.  */
+
+#include <semLib.h>
+
+typedef SEM_ID __gthread_mutex_t;
+/* All VxWorks mutexes are recursive.  */
+typedef SEM_ID __gthread_recursive_mutex_t;
+#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
+#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
+
+static inline void
+__gthread_mutex_init_function (__gthread_mutex_t *mutex)
+{
+  *mutex = semMCreate (SEM_Q_PRIORITY | SEM_INVERSION_SAFE | SEM_DELETE_SAFE);
+}
+
+static inline int
+__gthread_mutex_destroy (__gthread_mutex_t * UNUSED(mutex))
+{
+  return 0;
+}
+
+static inline int
+__gthread_mutex_lock (__gthread_mutex_t *mutex)
+{
+  return semTake (*mutex, WAIT_FOREVER);
+}
+
+static inline int
+__gthread_mutex_trylock (__gthread_mutex_t *mutex)
+{
+  return semTake (*mutex, NO_WAIT);
+}
+
+static inline int
+__gthread_mutex_unlock (__gthread_mutex_t *mutex)
+{
+  return semGive (*mutex);
+}
+
+static inline void
+__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *mutex)
+{
+  __gthread_mutex_init_function (mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex)
+{
+  return __gthread_mutex_lock (mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex)
+{
+  return __gthread_mutex_trylock (mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex)
+{
+  return __gthread_mutex_unlock (mutex);
+}
+
+/* pthread_once is complicated enough that it's implemented
+   out-of-line.  See config/vxlib.c.  */
+
+typedef struct
+{
+#ifndef __RTP__
+  volatile unsigned char busy;
+#endif
+  volatile unsigned char done;
+}
+__gthread_once_t;
+
+#ifndef __RTP__
+# define __GTHREAD_ONCE_INIT { 0, 0 }
+#else
+# define __GTHREAD_ONCE_INIT { 0 }
+#endif
+
+extern int __gthread_once (__gthread_once_t *__once, void (*__func)(void));
+
+/* Thread-specific data requires a great deal of effort, since VxWorks
+   is not really set up for it.  See config/vxlib.c for the gory
+   details.  All the TSD routines are sufficiently complex that they
+   need to be implemented out of line.  */
+
+typedef unsigned int __gthread_key_t;
+
+extern int __gthread_key_create (__gthread_key_t *__keyp, void (*__dtor)(void *));
+extern int __gthread_key_delete (__gthread_key_t __key);
+
+extern void *__gthread_getspecific (__gthread_key_t __key);
+extern int __gthread_setspecific (__gthread_key_t __key, void *__ptr);
+
+#undef UNUSED
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* not _LIBOBJC */
+
+#endif /* gthr-vxworks.h */