obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 157 insertions, 0 deletions

diff --git a/gcc/gthr-rtems.h b/gcc/gthr-rtems.h
new file mode 100644
index 000000000..c5bd52292
--- /dev/null
+++ b/gcc/gthr-rtems.h
@@ -0,0 +1,157 @@
+/* RTEMS threads compatibility routines for libgcc2 and libobjc.
+   by: Rosimildo da Silva( rdasilva@connecttel.com ) */
+/* Compile this one with gcc.  */
+/* Copyright (C) 1997, 1999, 2000, 2002, 2003, 2005, 2008, 2009
+   Free Software Foundation, Inc.
+
+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_RTEMS_H
+#define GCC_GTHR_RTEMS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define __GTHREADS 1
+
+#define __GTHREAD_ONCE_INIT  0
+#define __GTHREAD_MUTEX_INIT_FUNCTION  rtems_gxx_mutex_init
+#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION  rtems_gxx_recursive_mutex_init
+
+/* Avoid dependency on rtems specific headers.  */
+typedef void *__gthread_key_t;
+typedef int   __gthread_once_t;
+typedef void *__gthread_mutex_t;
+typedef void *__gthread_recursive_mutex_t;
+
+/*
+ * External functions provided by RTEMS. They are very similar to their POSIX
+ * counterparts. A "Wrapper API" is being use to avoid dependency on any RTEMS
+ * header files.
+ */
+
+/* generic per task variables */
+extern int rtems_gxx_once (__gthread_once_t *__once, void (*__func) (void));
+extern int rtems_gxx_key_create (__gthread_key_t *__key, void (*__dtor) (void *));
+extern int rtems_gxx_key_delete (__gthread_key_t __key);
+extern void *rtems_gxx_getspecific (__gthread_key_t __key);
+extern int rtems_gxx_setspecific (__gthread_key_t __key, const void *__ptr);
+
+/* mutex support */
+extern void rtems_gxx_mutex_init (__gthread_mutex_t *__mutex);
+extern int rtems_gxx_mutex_destroy (__gthread_mutex_t *__mutex);
+extern int rtems_gxx_mutex_lock (__gthread_mutex_t *__mutex);
+extern int rtems_gxx_mutex_trylock (__gthread_mutex_t *__mutex);
+extern int rtems_gxx_mutex_unlock (__gthread_mutex_t *__mutex);
+
+/* recursive mutex support */
+extern void rtems_gxx_recursive_mutex_init (__gthread_recursive_mutex_t *__mutex);
+extern int rtems_gxx_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex);
+extern int rtems_gxx_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex);
+extern int rtems_gxx_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex);
+
+/* RTEMS threading is always active */
+static inline int
+__gthread_active_p (void)
+{
+  return 1;
+}
+
+/* Wrapper calls */
+static inline int
+__gthread_once (__gthread_once_t *__once, void (*__func) (void))
+{
+   return rtems_gxx_once( __once, __func );
+}
+
+static inline int
+__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
+{
+  return rtems_gxx_key_create( __key, __dtor );
+}
+
+static inline int
+__gthread_key_delete (__gthread_key_t __key)
+{
+  return rtems_gxx_key_delete (__key);
+}
+
+static inline void *
+__gthread_getspecific (__gthread_key_t __key)
+{
+  return rtems_gxx_getspecific (__key);
+}
+
+static inline int
+__gthread_setspecific (__gthread_key_t __key, const void *__ptr)
+{
+  return rtems_gxx_setspecific (__key, __ptr);
+}
+
+static inline int
+__gthread_mutex_destroy (__gthread_mutex_t *__mutex)
+{
+  return rtems_gxx_mutex_destroy (__mutex);
+}
+
+static inline int
+__gthread_mutex_lock (__gthread_mutex_t *__mutex)
+{
+    return rtems_gxx_mutex_lock (__mutex);
+}
+
+static inline int
+__gthread_mutex_trylock (__gthread_mutex_t *__mutex)
+{
+    return rtems_gxx_mutex_trylock (__mutex);
+}
+
+static inline int
+__gthread_mutex_unlock (__gthread_mutex_t *__mutex)
+{
+    return rtems_gxx_mutex_unlock( __mutex );
+}
+
+static inline int
+__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
+{
+    return rtems_gxx_recursive_mutex_lock (__mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
+{
+    return rtems_gxx_recursive_mutex_trylock (__mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
+{
+    return rtems_gxx_recursive_mutex_unlock( __mutex );
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ! GCC_GTHR_RTEMS_H */