--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/compiler/disassembler.hpp	Wed Apr 02 12:09:59 2008 -0700
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2008 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.
+ *
+ */
+
+class decode_env;
+
+// The disassembler prints out assembly code annotated
+// with Java specific information.
+
+class Disassembler {
+  friend class decode_env;
+ private:
+  // this is the type of the dll entry point:
+  typedef void* (*decode_func)(void* start, void* end,
+                               void* (*event_callback)(void*, const char*, void*),
+                               void* event_stream,
+                               int (*printf_callback)(void*, const char*, ...),
+                               void* printf_stream,
+                               const char* options);
+  // points to the library.
+  static void*    _library;
+  // bailout
+  static bool     _tried_to_load_library;
+  // points to the decode function.
+  static decode_func _decode_instructions;
+  // tries to load library and return whether it succedded.
+  static bool load_library();
+
+  // Machine dependent stuff
+  #include "incls/_disassembler_pd.hpp.incl"
+
+ public:
+  static bool can_decode() {
+    return (_decode_instructions != NULL) || load_library();
+  }
+  static void decode(CodeBlob *cb,               outputStream* st = NULL);
+  static void decode(nmethod* nm,                outputStream* st = NULL);
+  static void decode(address begin, address end, outputStream* st = NULL);
+};