Mercurial > hg > graal-jvmci-8
comparison src/share/vm/ci/ciKlass.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author | coleenp |
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date | Sat, 01 Sep 2012 13:25:18 -0400 |
parents | 1d1603768966 |
children | e522a00b91aa 6171eb9da4fd |
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6724:36d1d483d5d6 | 6725:da91efe96a93 |
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1 /* | 1 /* |
2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 1999, 2012, 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. |
28 #include "ci/ciUtilities.hpp" | 28 #include "ci/ciUtilities.hpp" |
29 #include "oops/oop.inline.hpp" | 29 #include "oops/oop.inline.hpp" |
30 | 30 |
31 // ciKlass | 31 // ciKlass |
32 // | 32 // |
33 // This class represents a klassOop in the HotSpot virtual | 33 // This class represents a Klass* in the HotSpot virtual |
34 // machine. | 34 // machine. |
35 | 35 |
36 // ------------------------------------------------------------------ | 36 // ------------------------------------------------------------------ |
37 // ciKlass::ciKlass | 37 // ciKlass::ciKlass |
38 ciKlass::ciKlass(KlassHandle h_k) : ciType(h_k) { | 38 ciKlass::ciKlass(KlassHandle h_k) : ciType(h_k) { |
39 assert(get_oop()->is_klass(), "wrong type"); | 39 assert(get_Klass()->is_klass(), "wrong type"); |
40 Klass* k = get_Klass(); | 40 Klass* k = get_Klass(); |
41 _layout_helper = k->layout_helper(); | 41 _layout_helper = k->layout_helper(); |
42 Symbol* klass_name = k->name(); | 42 Symbol* klass_name = k->name(); |
43 assert(klass_name != NULL, "wrong ciKlass constructor"); | 43 assert(klass_name != NULL, "wrong ciKlass constructor"); |
44 _name = CURRENT_ENV->get_symbol(klass_name); | 44 _name = CURRENT_ENV->get_symbol(klass_name); |
47 // ------------------------------------------------------------------ | 47 // ------------------------------------------------------------------ |
48 // ciKlass::ciKlass | 48 // ciKlass::ciKlass |
49 // | 49 // |
50 // Nameless klass variant. | 50 // Nameless klass variant. |
51 ciKlass::ciKlass(KlassHandle h_k, ciSymbol* name) : ciType(h_k) { | 51 ciKlass::ciKlass(KlassHandle h_k, ciSymbol* name) : ciType(h_k) { |
52 assert(get_oop()->is_klass(), "wrong type"); | 52 assert(get_Klass()->is_klass(), "wrong type"); |
53 _name = name; | 53 _name = name; |
54 _layout_helper = Klass::_lh_neutral_value; | 54 _layout_helper = Klass::_lh_neutral_value; |
55 } | 55 } |
56 | 56 |
57 // ------------------------------------------------------------------ | 57 // ------------------------------------------------------------------ |
58 // ciKlass::ciKlass | 58 // ciKlass::ciKlass |
59 // | 59 // |
60 // Unloaded klass variant. | 60 // Unloaded klass variant. |
61 ciKlass::ciKlass(ciSymbol* name, ciKlass* klass) : ciType(klass) { | 61 ciKlass::ciKlass(ciSymbol* name, BasicType bt) : ciType(bt) { |
62 _name = name; | 62 _name = name; |
63 _layout_helper = Klass::_lh_neutral_value; | 63 _layout_helper = Klass::_lh_neutral_value; |
64 } | 64 } |
65 | 65 |
66 // ------------------------------------------------------------------ | 66 // ------------------------------------------------------------------ |
67 // ciKlass::is_subtype_of | 67 // ciKlass::is_subtype_of |
68 bool ciKlass::is_subtype_of(ciKlass* that) { | 68 bool ciKlass::is_subtype_of(ciKlass* that) { |
69 assert(is_loaded() && that->is_loaded(), "must be loaded"); | 69 assert(is_loaded() && that->is_loaded(), "must be loaded"); |
70 assert(is_java_klass() && that->is_java_klass(), "must be java klasses"); | |
71 // Check to see if the klasses are identical. | 70 // Check to see if the klasses are identical. |
72 if (this == that) { | 71 if (this == that) { |
73 return true; | 72 return true; |
74 } | 73 } |
75 | 74 |
76 VM_ENTRY_MARK; | 75 VM_ENTRY_MARK; |
77 Klass* this_klass = get_Klass(); | 76 Klass* this_klass = get_Klass(); |
78 klassOop that_klass = that->get_klassOop(); | 77 Klass* that_klass = that->get_Klass(); |
79 bool result = this_klass->is_subtype_of(that_klass); | 78 bool result = this_klass->is_subtype_of(that_klass); |
80 | 79 |
81 return result; | 80 return result; |
82 } | 81 } |
83 | 82 |
84 // ------------------------------------------------------------------ | 83 // ------------------------------------------------------------------ |
85 // ciKlass::is_subclass_of | 84 // ciKlass::is_subclass_of |
86 bool ciKlass::is_subclass_of(ciKlass* that) { | 85 bool ciKlass::is_subclass_of(ciKlass* that) { |
87 assert(is_loaded() && that->is_loaded(), "must be loaded"); | 86 assert(is_loaded() && that->is_loaded(), "must be loaded"); |
88 assert(is_java_klass() && that->is_java_klass(), "must be java klasses"); | |
89 // Check to see if the klasses are identical. | 87 // Check to see if the klasses are identical. |
90 | 88 |
91 VM_ENTRY_MARK; | 89 VM_ENTRY_MARK; |
92 Klass* this_klass = get_Klass(); | 90 Klass* this_klass = get_Klass(); |
93 klassOop that_klass = that->get_klassOop(); | 91 Klass* that_klass = that->get_Klass(); |
94 bool result = this_klass->is_subclass_of(that_klass); | 92 bool result = this_klass->is_subclass_of(that_klass); |
95 | 93 |
96 return result; | 94 return result; |
97 } | 95 } |
98 | 96 |
99 // ------------------------------------------------------------------ | 97 // ------------------------------------------------------------------ |
100 // ciKlass::super_depth | 98 // ciKlass::super_depth |
101 juint ciKlass::super_depth() { | 99 juint ciKlass::super_depth() { |
102 assert(is_loaded(), "must be loaded"); | 100 assert(is_loaded(), "must be loaded"); |
103 assert(is_java_klass(), "must be java klasses"); | |
104 | 101 |
105 VM_ENTRY_MARK; | 102 VM_ENTRY_MARK; |
106 Klass* this_klass = get_Klass(); | 103 Klass* this_klass = get_Klass(); |
107 return this_klass->super_depth(); | 104 return this_klass->super_depth(); |
108 } | 105 } |
109 | 106 |
110 // ------------------------------------------------------------------ | 107 // ------------------------------------------------------------------ |
111 // ciKlass::super_check_offset | 108 // ciKlass::super_check_offset |
112 juint ciKlass::super_check_offset() { | 109 juint ciKlass::super_check_offset() { |
113 assert(is_loaded(), "must be loaded"); | 110 assert(is_loaded(), "must be loaded"); |
114 assert(is_java_klass(), "must be java klasses"); | |
115 | 111 |
116 VM_ENTRY_MARK; | 112 VM_ENTRY_MARK; |
117 Klass* this_klass = get_Klass(); | 113 Klass* this_klass = get_Klass(); |
118 return this_klass->super_check_offset(); | 114 return this_klass->super_check_offset(); |
119 } | 115 } |
120 | 116 |
121 // ------------------------------------------------------------------ | 117 // ------------------------------------------------------------------ |
122 // ciKlass::super_of_depth | 118 // ciKlass::super_of_depth |
123 ciKlass* ciKlass::super_of_depth(juint i) { | 119 ciKlass* ciKlass::super_of_depth(juint i) { |
124 assert(is_loaded(), "must be loaded"); | 120 assert(is_loaded(), "must be loaded"); |
125 assert(is_java_klass(), "must be java klasses"); | 121 |
126 | 122 VM_ENTRY_MARK; |
127 VM_ENTRY_MARK; | 123 Klass* this_klass = get_Klass(); |
128 Klass* this_klass = get_Klass(); | 124 Klass* super = this_klass->primary_super_of_depth(i); |
129 klassOop super = this_klass->primary_super_of_depth(i); | 125 return (super != NULL) ? CURRENT_THREAD_ENV->get_klass(super) : NULL; |
130 return (super != NULL) ? CURRENT_THREAD_ENV->get_object(super)->as_klass() : NULL; | |
131 } | 126 } |
132 | 127 |
133 // ------------------------------------------------------------------ | 128 // ------------------------------------------------------------------ |
134 // ciKlass::can_be_primary_super | 129 // ciKlass::can_be_primary_super |
135 bool ciKlass::can_be_primary_super() { | 130 bool ciKlass::can_be_primary_super() { |
136 assert(is_loaded(), "must be loaded"); | 131 assert(is_loaded(), "must be loaded"); |
137 assert(is_java_klass(), "must be java klasses"); | |
138 | 132 |
139 VM_ENTRY_MARK; | 133 VM_ENTRY_MARK; |
140 Klass* this_klass = get_Klass(); | 134 Klass* this_klass = get_Klass(); |
141 return this_klass->can_be_primary_super(); | 135 return this_klass->can_be_primary_super(); |
142 } | 136 } |
154 // computation or possibly if most of the superklasses have already | 148 // computation or possibly if most of the superklasses have already |
155 // been created as ciObjects anyway. Something to think about... | 149 // been created as ciObjects anyway. Something to think about... |
156 ciKlass* | 150 ciKlass* |
157 ciKlass::least_common_ancestor(ciKlass* that) { | 151 ciKlass::least_common_ancestor(ciKlass* that) { |
158 assert(is_loaded() && that->is_loaded(), "must be loaded"); | 152 assert(is_loaded() && that->is_loaded(), "must be loaded"); |
159 assert(is_java_klass() && that->is_java_klass(), "must be java klasses"); | |
160 // Check to see if the klasses are identical. | 153 // Check to see if the klasses are identical. |
161 if (this == that) { | 154 if (this == that) { |
162 return this; | 155 return this; |
163 } | 156 } |
164 | 157 |
176 return this; | 169 return this; |
177 } | 170 } |
178 | 171 |
179 // Create the ciInstanceKlass for the lca. | 172 // Create the ciInstanceKlass for the lca. |
180 ciKlass* result = | 173 ciKlass* result = |
181 CURRENT_THREAD_ENV->get_object(lca->as_klassOop())->as_klass(); | 174 CURRENT_THREAD_ENV->get_klass(lca); |
182 | 175 |
183 return result; | 176 return result; |
184 } | 177 } |
185 | 178 |
186 // ------------------------------------------------------------------ | 179 // ------------------------------------------------------------------ |
202 ciInstance* ciKlass::java_mirror() { | 195 ciInstance* ciKlass::java_mirror() { |
203 GUARDED_VM_ENTRY( | 196 GUARDED_VM_ENTRY( |
204 if (!is_loaded()) | 197 if (!is_loaded()) |
205 return ciEnv::current()->get_unloaded_klass_mirror(this); | 198 return ciEnv::current()->get_unloaded_klass_mirror(this); |
206 oop java_mirror = get_Klass()->java_mirror(); | 199 oop java_mirror = get_Klass()->java_mirror(); |
207 return CURRENT_ENV->get_object(java_mirror)->as_instance(); | 200 return CURRENT_ENV->get_instance(java_mirror); |
208 ) | 201 ) |
209 } | 202 } |
210 | 203 |
211 // ------------------------------------------------------------------ | 204 // ------------------------------------------------------------------ |
212 // ciKlass::modifier_flags | 205 // ciKlass::modifier_flags |