--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/runtime/threadLocalStorage.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,49 @@
+/*
+ * Copyright 1997-2003 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+# include "incls/_precompiled.incl"
+# include "incls/_threadLocalStorage.cpp.incl"
+
+// static member initialization
+int ThreadLocalStorage::_thread_index = -1;
+
+Thread* ThreadLocalStorage::get_thread_slow() {
+  return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index());
+}
+
+void ThreadLocalStorage::set_thread(Thread* thread) {
+  pd_set_thread(thread);
+
+  // The following ensure that any optimization tricks we have tried
+  // did not backfire on us:
+  guarantee(get_thread()      == thread, "must be the same thread, quickly");
+  guarantee(get_thread_slow() == thread, "must be the same thread, slowly");
+}
+
+void ThreadLocalStorage::init() {
+  assert(ThreadLocalStorage::thread_index() == -1, "More than one attempt to initialize threadLocalStorage");
+  pd_init();
+  set_thread_index(os::allocate_thread_local_storage());
+  generate_code_for_get_thread();
+}