equal
deleted
inserted
replaced
1 /* |
1 /* |
2 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
25 #ifndef SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP |
25 #ifndef SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP |
26 #define SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP |
26 #define SHARE_VM_OOPS_COMPILEDICHOLDEROOP_HPP |
27 |
27 |
28 #include "oops/oop.hpp" |
28 #include "oops/oop.hpp" |
29 #include "utilities/macros.hpp" |
29 #include "utilities/macros.hpp" |
|
30 #include "oops/klass.hpp" |
|
31 #include "oops/method.hpp" |
30 |
32 |
31 // A CompiledICHolder* is a helper object for the inline cache implementation. |
33 // A CompiledICHolder* is a helper object for the inline cache implementation. |
32 // It holds: |
34 // It holds: |
33 // (1) (method+klass pair) when converting from compiled to an interpreted call |
35 // (1) (method+klass pair) when converting from compiled to an interpreted call |
34 // (2) (klass+klass pair) when calling itable stub from megamorphic compiled call |
36 // (2) (klass+klass pair) when calling itable stub from megamorphic compiled call |
47 // reachable by iterating over nmethods |
49 // reachable by iterating over nmethods |
48 |
50 |
49 Metadata* _holder_metadata; |
51 Metadata* _holder_metadata; |
50 Klass* _holder_klass; // to avoid name conflict with oopDesc::_klass |
52 Klass* _holder_klass; // to avoid name conflict with oopDesc::_klass |
51 CompiledICHolder* _next; |
53 CompiledICHolder* _next; |
|
54 bool _is_metadata_method; |
52 |
55 |
53 public: |
56 public: |
54 // Constructor |
57 // Constructor |
55 CompiledICHolder(Metadata* metadata, Klass* klass); |
58 CompiledICHolder(Metadata* metadata, Klass* klass, bool is_method = true); |
56 ~CompiledICHolder() NOT_DEBUG_RETURN; |
59 ~CompiledICHolder() NOT_DEBUG_RETURN; |
57 |
60 |
58 static int live_count() { return _live_count; } |
61 static int live_count() { return _live_count; } |
59 static int live_not_claimed_count() { return _live_not_claimed_count; } |
62 static int live_not_claimed_count() { return _live_not_claimed_count; } |
60 |
63 |
69 static int holder_klass_offset() { return offset_of(CompiledICHolder, _holder_klass); } |
72 static int holder_klass_offset() { return offset_of(CompiledICHolder, _holder_klass); } |
70 |
73 |
71 CompiledICHolder* next() { return _next; } |
74 CompiledICHolder* next() { return _next; } |
72 void set_next(CompiledICHolder* n) { _next = n; } |
75 void set_next(CompiledICHolder* n) { _next = n; } |
73 |
76 |
74 bool is_loader_alive(BoolObjectClosure* is_alive); |
77 inline bool is_loader_alive(BoolObjectClosure* is_alive) { |
|
78 Klass* k = _is_metadata_method ? ((Method*)_holder_metadata)->method_holder() : (Klass*)_holder_metadata; |
|
79 if (!k->is_loader_alive(is_alive)) { |
|
80 return false; |
|
81 } |
|
82 if (!_holder_klass->is_loader_alive(is_alive)) { |
|
83 return false; |
|
84 } |
|
85 return true; |
|
86 } |
75 |
87 |
76 // Verify |
88 // Verify |
77 void verify_on(outputStream* st); |
89 void verify_on(outputStream* st); |
78 |
90 |
79 // Printing |
91 // Printing |