1 /*
 2  * Copyright (c) 1997, 2022, 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 #ifndef SHARE_INTERPRETER_CPPINTERPRETERGENERATOR_HPP
26 #define SHARE_INTERPRETER_CPPINTERPRETERGENERATOR_HPP
27 
28 // This file contains the platform-independent parts
29 // of the Zero interpreter generator.
30 
31 # include "entry_zero.hpp"
32 
33 class ZeroInterpreterGenerator: public AbstractInterpreterGenerator {
34 
35  private:
36   void generate_all();
37 
38   address generate_slow_signature_handler();
39 
40   address generate_method_entry(AbstractInterpreter::MethodKind kind);
41   address generate_normal_entry(bool synchronized, bool runtime_upcalls);
42   address generate_native_entry(bool synchronized, bool runtime_upcalls);
43   address generate_abstract_entry();
44   address generate_math_entry(AbstractInterpreter::MethodKind kind);
45   address generate_empty_entry();
46   address generate_getter_entry();
47   address generate_setter_entry();
48   address generate_Reference_get_entry();
49 
50  public:
51   ZeroInterpreterGenerator();
52 
53  protected:
54   MacroAssembler* assembler() const {
55     return _masm;
56   }
57 
58  public:
59   static address generate_entry_impl(MacroAssembler* masm, address entry_point) {
60     ZeroEntry *entry = (ZeroEntry *) masm->pc();
61     masm->advance(sizeof(ZeroEntry));
62     entry->set_entry_point(entry_point);
63     return (address) entry;
64   }
65 
66  protected:
67   address generate_entry(address entry_point) {
68     return generate_entry_impl(assembler(), entry_point);
69   }
70 };
71 
72 #endif // SHARE_INTERPRETER_CPPINTERPRETERGENERATOR_HPP