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annotate src/share/vm/ci/ciObjectFactory.hpp @ 3756:c8f2186acf6d
7053520: JSR292: crash in invokedynamic with C1 using tiered and compressed oops
Reviewed-by: iveresov, never
author | twisti |
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date | Tue, 14 Jun 2011 12:25:05 -0700 |
parents | 1d1603768966 |
children | 0654ee04b214 f6f3bb0ee072 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_CI_CIOBJECTFACTORY_HPP |
26 #define SHARE_VM_CI_CIOBJECTFACTORY_HPP | |
27 | |
28 #include "ci/ciClassList.hpp" | |
29 #include "ci/ciObject.hpp" | |
30 #include "utilities/growableArray.hpp" | |
31 | |
0 | 32 // ciObjectFactory |
33 // | |
34 // This class handles requests for the creation of new instances | |
35 // of ciObject and its subclasses. It contains a caching mechanism | |
36 // which ensures that for each oop, at most one ciObject is created. | |
37 // This invariant allows efficient implementation of ciObject. | |
38 class ciObjectFactory : public ResourceObj { | |
39 private: | |
40 static volatile bool _initialized; | |
41 static GrowableArray<ciObject*>* _shared_ci_objects; | |
42 static ciSymbol* _shared_ci_symbols[]; | |
43 static int _shared_ident_limit; | |
44 | |
45 Arena* _arena; | |
46 GrowableArray<ciObject*>* _ci_objects; | |
47 GrowableArray<ciMethod*>* _unloaded_methods; | |
48 GrowableArray<ciKlass*>* _unloaded_klasses; | |
1602 | 49 GrowableArray<ciInstance*>* _unloaded_instances; |
0 | 50 GrowableArray<ciReturnAddress*>* _return_addresses; |
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51 GrowableArray<ciSymbol*>* _symbols; // keep list of symbols created |
0 | 52 int _next_ident; |
53 | |
54 public: | |
55 struct NonPermObject : public ResourceObj { | |
56 ciObject* _object; | |
57 NonPermObject* _next; | |
58 | |
59 inline NonPermObject(NonPermObject* &bucket, oop key, ciObject* object); | |
60 ciObject* object() { return _object; } | |
61 NonPermObject* &next() { return _next; } | |
62 }; | |
63 private: | |
64 enum { NON_PERM_BUCKETS = 61 }; | |
65 NonPermObject* _non_perm_bucket[NON_PERM_BUCKETS]; | |
66 int _non_perm_count; | |
67 | |
68 int find(oop key, GrowableArray<ciObject*>* objects); | |
69 bool is_found_at(int index, oop key, GrowableArray<ciObject*>* objects); | |
70 void insert(int index, ciObject* obj, GrowableArray<ciObject*>* objects); | |
71 ciObject* create_new_object(oop o); | |
72 static bool is_equal(NonPermObject* p, oop key) { | |
73 return p->object()->get_oop() == key; | |
74 } | |
75 | |
76 NonPermObject* &find_non_perm(oop key); | |
77 void insert_non_perm(NonPermObject* &where, oop key, ciObject* obj); | |
78 | |
79 void init_ident_of(ciObject* obj); | |
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80 void init_ident_of(ciSymbol* obj); |
0 | 81 |
82 Arena* arena() { return _arena; } | |
83 | |
84 void print_contents_impl(); | |
85 | |
1602 | 86 ciInstance* get_unloaded_instance(ciInstanceKlass* klass); |
87 | |
0 | 88 public: |
89 static bool is_initialized() { return _initialized; } | |
90 | |
91 static void initialize(); | |
92 void init_shared_objects(); | |
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93 void remove_symbols(); |
0 | 94 |
95 ciObjectFactory(Arena* arena, int expected_size); | |
96 | |
97 // Get the ciObject corresponding to some oop. | |
98 ciObject* get(oop key); | |
99 | |
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100 ciSymbol* get_symbol(Symbol* key); |
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101 |
0 | 102 // Get the ciSymbol corresponding to one of the vmSymbols. |
103 static ciSymbol* vm_symbol_at(int index); | |
104 | |
105 // Get the ciMethod representing an unloaded/unfound method. | |
106 ciMethod* get_unloaded_method(ciInstanceKlass* holder, | |
107 ciSymbol* name, | |
108 ciSymbol* signature); | |
109 | |
110 // Get a ciKlass representing an unloaded klass. | |
111 ciKlass* get_unloaded_klass(ciKlass* accessing_klass, | |
112 ciSymbol* name, | |
113 bool create_if_not_found); | |
114 | |
1602 | 115 // Get a ciInstance representing an unresolved klass mirror. |
116 ciInstance* get_unloaded_klass_mirror(ciKlass* type); | |
117 | |
118 // Get a ciInstance representing an unresolved method handle constant. | |
119 ciInstance* get_unloaded_method_handle_constant(ciKlass* holder, | |
120 ciSymbol* name, | |
121 ciSymbol* signature, | |
122 int ref_kind); | |
123 | |
124 // Get a ciInstance representing an unresolved method type constant. | |
125 ciInstance* get_unloaded_method_type_constant(ciSymbol* signature); | |
126 | |
0 | 127 |
128 // Get the ciMethodData representing the methodData for a method | |
129 // with none. | |
130 ciMethodData* get_empty_methodData(); | |
131 | |
132 ciReturnAddress* get_return_address(int bci); | |
133 | |
134 void print_contents(); | |
135 void print(); | |
136 }; | |
1972 | 137 |
138 #endif // SHARE_VM_CI_CIOBJECTFACTORY_HPP |