1 /*
 2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  *
23  */
24 
25 // Old code. Might be deleted later if no uses appear.
26 #if 0
27 
28 #ifndef SHARE_COMPILER_OOPMAPSTUBGENERATOR_HPP
29 #define SHARE_COMPILER_OOPMAPSTUBGENERATOR_HPP
30 
31 #include "asm/assembler.hpp"
32 #include "memory/allocation.hpp"
33 
34 class ImmutableOopMap;
35 class BufferBlob;
36 
37 class OopMapStubGenerator {
38   const CodeBlob* _cb;
39   const ImmutableOopMap& _oopmap;
40   BufferBlob* _blob;
41   address _freeze_stub;
42   address _thaw_stub;
43 
44 public:
45   OopMapStubGenerator(const CodeBlob* cb, const ImmutableOopMap& oopmap) : _cb(cb), _oopmap(oopmap), _blob(NULL), _freeze_stub(NULL), _thaw_stub(NULL) {}
46 
47   address freeze_stub() { return _freeze_stub; }
48   address thaw_stub() { return _thaw_stub; }
49   bool generate();
50   void free();
51   
52   static address thaw_stub(address freeze_stub_address);
53   static CodeBlob* code_blob(address thaw_stub_address);
54 };
55 
56 #endif
57 
58 #else
59 #error This code is not used
60 #endif