--- /dev/null	Wed Sep 21 11:42:21 2011
+++ new/src/os_cpu/bsd_x86/vm/threadLS_bsd_x86.hpp	Wed Sep 21 11:42:50 2011
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 1999, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_CPU_BSD_X86_VM_THREADLS_BSD_X86_HPP
+#define OS_CPU_BSD_X86_VM_THREADLS_BSD_X86_HPP
+
+  // Processor dependent parts of ThreadLocalStorage
+
+#ifndef AMD64
+  // map stack pointer to thread pointer - see notes in threadLS_bsd_x86.cpp
+  #define SP_BITLENGTH  32
+#ifndef PAGE_SHIFT
+  #define PAGE_SHIFT    12
+  #define PAGE_SIZE     (1UL << PAGE_SHIFT)
+#endif
+  static Thread* _sp_map[1UL << (SP_BITLENGTH - PAGE_SHIFT)];
+#endif // !AMD64
+
+public:
+
+#ifndef AMD64
+  static Thread** sp_map_addr() { return _sp_map; }
+#endif // !AMD64
+
+  static Thread* thread() {
+#ifdef AMD64
+    return (Thread*) os::thread_local_storage_at(thread_index());
+#else
+    uintptr_t sp;
+    __asm__ volatile ("movl %%esp, %0" : "=r" (sp));
+    return _sp_map[sp >> PAGE_SHIFT];
+#endif // AMD64
+  }
+
+#endif // OS_CPU_BSD_X86_VM_THREADLS_BSD_X86_HPP