author | roland |
Thu, 10 Jul 2014 15:12:48 +0200 | |
changeset 25635 | d2f8ae0c908b |
parent 15430 | 7c35f12cf1e5 |
child 26558 | b7df27df6384 |
permissions | -rw-r--r-- |
15430
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
1 |
/* |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
2 |
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
4 |
* |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
5 |
* This code is free software; you can redistribute it and/or modify it |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
6 |
* under the terms of the GNU General Public License version 2 only, as |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
7 |
* published by the Free Software Foundation. |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
8 |
* |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
9 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
10 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
11 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
12 |
* version 2 for more details (a copy is included in the LICENSE file that |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
13 |
* accompanied this code). |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
14 |
* |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
15 |
* You should have received a copy of the GNU General Public License version |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
16 |
* 2 along with this work; if not, write to the Free Software Foundation, |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
17 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
18 |
* |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
20 |
* or visit www.oracle.com if you need additional information or have any |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
21 |
* questions. |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
22 |
* |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
23 |
*/ |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
24 |
|
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
25 |
#ifndef SHARE_VM_CLASSFILE_METADATAONSTACKMARK_HPP |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
26 |
#define SHARE_VM_CLASSFILE_METADATAONSTACKMARK_HPP |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
27 |
|
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
28 |
#include "memory/allocation.hpp" |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
29 |
|
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
30 |
class Metadata; |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
31 |
|
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
32 |
// Helper class to mark and unmark metadata used on the stack as either handles |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
33 |
// or executing methods, so that it can't be deleted during class redefinition |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
34 |
// and class unloading. |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
35 |
// This is also used for other things that can be deallocated, like class |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
36 |
// metadata during parsing, relocated methods, and methods in backtraces. |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
37 |
class MetadataOnStackMark : public StackObj { |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
38 |
NOT_PRODUCT(static bool _is_active;) |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
39 |
public: |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
40 |
MetadataOnStackMark(); |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
41 |
~MetadataOnStackMark(); |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
42 |
static void record(Metadata* m); |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
43 |
}; |
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
44 |
|
7c35f12cf1e5
8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents:
diff
changeset
|
45 |
#endif // SHARE_VM_CLASSFILE_METADATAONSTACKMARK_HPP |