1 /* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 #ifndef SHARE_VM_OOPS_INSTANCEMIRRORKLASS_INLINE_HPP
25 #define SHARE_VM_OOPS_INSTANCEMIRRORKLASS_INLINE_HPP
26
27 #include "classfile/javaClasses.hpp"
28 #include "oops/instanceKlass.inline.hpp"
29 #include "oops/instanceMirrorKlass.hpp"
30 #include "oops/klass.hpp"
31 #include "oops/oop.inline.hpp"
32 #include "utilities/debug.hpp"
33 #include "utilities/globalDefinitions.hpp"
34 #include "utilities/macros.hpp"
35
36 template <bool nv, typename T, class OopClosureType>
37 void InstanceMirrorKlass::oop_oop_iterate_statics_specialized(oop obj, OopClosureType* closure) {
38 T* p = (T*)start_of_static_fields(obj);
39 T* const end = p + java_lang_Class::static_oop_field_count(obj);
40
41 for (; p < end; ++p) {
42 Devirtualizer<nv>::do_oop(closure, p);
43 }
44 }
45
46 template <bool nv, class OopClosureType>
47 void InstanceMirrorKlass::oop_oop_iterate_statics(oop obj, OopClosureType* closure) {
48 if (UseCompressedOops) {
49 oop_oop_iterate_statics_specialized<nv, narrowOop>(obj, closure);
50 } else {
51 oop_oop_iterate_statics_specialized<nv, oop>(obj, closure);
52 }
53 }
54
55 template <bool nv, class OopClosureType>
56 int InstanceMirrorKlass::oop_oop_iterate(oop obj, OopClosureType* closure) {
57 InstanceKlass::oop_oop_iterate<nv>(obj, closure);
58
59 if (Devirtualizer<nv>::do_metadata(closure)) {
60 Klass* klass = java_lang_Class::as_Klass(obj);
61 // We'll get NULL for primitive mirrors.
62 if (klass != NULL) {
63 Devirtualizer<nv>::do_klass(closure, klass);
64 }
65 }
66
67 oop_oop_iterate_statics<nv>(obj, closure);
68
69 return oop_size(obj);
70 }
71
72 #if INCLUDE_ALL_GCS
73 template <bool nv, class OopClosureType>
74 int InstanceMirrorKlass::oop_oop_iterate_reverse(oop obj, OopClosureType* closure) {
75 InstanceKlass::oop_oop_iterate_reverse<nv>(obj, closure);
76
77 InstanceMirrorKlass::oop_oop_iterate_statics<nv>(obj, closure);
78
79 return oop_size(obj);
80 }
81 #endif
82
83 template <bool nv, typename T, class OopClosureType>
84 void InstanceMirrorKlass::oop_oop_iterate_statics_specialized_bounded(oop obj,
85 OopClosureType* closure,
86 MemRegion mr) {
87 T* p = (T*)start_of_static_fields(obj);
88 T* end = p + java_lang_Class::static_oop_field_count(obj);
89
90 T* const l = (T*)mr.start();
91 T* const h = (T*)mr.end();
92 assert(mask_bits((intptr_t)l, sizeof(T)-1) == 0 &&
93 mask_bits((intptr_t)h, sizeof(T)-1) == 0,
94 "bounded region must be properly aligned");
95
96 if (p < l) {
97 p = l;
98 }
99 if (end > h) {
100 end = h;
101 }
102
103 for (;p < end; ++p) {
104 Devirtualizer<nv>::do_oop(closure, p);
105 }
106 }
107
108 template <bool nv, class OopClosureType>
109 void InstanceMirrorKlass::oop_oop_iterate_statics_bounded(oop obj, OopClosureType* closure, MemRegion mr) {
110 if (UseCompressedOops) {
111 oop_oop_iterate_statics_specialized_bounded<nv, narrowOop>(obj, closure, mr);
112 } else {
113 oop_oop_iterate_statics_specialized_bounded<nv, oop>(obj, closure, mr);
114 }
115 }
116
117 template <bool nv, class OopClosureType>
118 int InstanceMirrorKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) {
119 InstanceKlass::oop_oop_iterate_bounded<nv>(obj, closure, mr);
120
121 if (Devirtualizer<nv>::do_metadata(closure)) {
122 if (mr.contains(obj)) {
123 Klass* klass = java_lang_Class::as_Klass(obj);
124 // We'll get NULL for primitive mirrors.
125 if (klass != NULL) {
126 Devirtualizer<nv>::do_klass(closure, klass);
127 }
128 }
129 }
130
131 oop_oop_iterate_statics_bounded<nv>(obj, closure, mr);
132
133 return oop_size(obj);
134 }
135
136 #define ALL_INSTANCE_MIRROR_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
137 OOP_OOP_ITERATE_DEFN( InstanceMirrorKlass, OopClosureType, nv_suffix) \
138 OOP_OOP_ITERATE_DEFN_m( InstanceMirrorKlass, OopClosureType, nv_suffix) \
139 OOP_OOP_ITERATE_BACKWARDS_DEFN(InstanceMirrorKlass, OopClosureType, nv_suffix)
140
141 #endif // SHARE_VM_OOPS_INSTANCEMIRRORKLASS_INLINE_HPP