New src/share/vm/oops/instanceMirrorKlass.inline.hpp (original) (raw)

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/oop.inline.hpp" 31 #include "utilities/debug.hpp" 32 #include "utilities/globalDefinitions.hpp" 33 #include "utilities/macros.hpp" 34 35 template <bool nv, typename T, class OopClosureType> 36 void InstanceMirrorKlass::oop_oop_iterate_statics_specialized(oop obj, OopClosureType closure) { 37 T* p = (T*)start_of_static_fields(obj); 38 T* const end = p + java_lang_Class::static_oop_field_count(obj); 39 40 for (; p < end; ++p) { 41 Devirtualizer::do_oop(closure, p); 42 } 43 } 44 45 template <bool nv, class OopClosureType> 46 void InstanceMirrorKlass::oop_oop_iterate_statics(oop obj, OopClosureType* closure) { 47 if (UseCompressedOops) { 48 oop_oop_iterate_statics_specialized<nv, narrowOop>(obj, closure); 49 } else { 50 oop_oop_iterate_statics_specialized<nv, oop>(obj, closure); 51 } 52 } 53 54 template <bool nv, class OopClosureType> 55 int InstanceMirrorKlass::oop_oop_iterate(oop obj, OopClosureType* closure) { 56 InstanceKlass::oop_oop_iterate(obj, closure); 57 58 if (Devirtualizer::do_metadata(closure)) { 59 Klass* klass = java_lang_Class::as_Klass(obj); 60 // We'll get NULL for primitive mirrors. 61 if (klass != NULL) { 62 Devirtualizer::do_klass(closure, klass); 63 } 64 } 65 66 oop_oop_iterate_statics(obj, closure); 67 68 return oop_size(obj); 69 } 70 71 #if INCLUDE_ALL_GCS 72 template <bool nv, class OopClosureType> 73 int InstanceMirrorKlass::oop_oop_iterate_reverse(oop obj, OopClosureType* closure) { 74 InstanceKlass::oop_oop_iterate_reverse(obj, closure); 75 76 InstanceMirrorKlass::oop_oop_iterate_statics(obj, closure); 77 78 return oop_size(obj); 79 } 80 #endif 81 82 template <bool nv, typename T, class OopClosureType> 83 void InstanceMirrorKlass::oop_oop_iterate_statics_specialized_bounded(oop obj, 84 OopClosureType* closure, 85 MemRegion mr) { 86 T* p = (T*)start_of_static_fields(obj); 87 T* end = p + java_lang_Class::static_oop_field_count(obj); 88 89 T* const l = (T*)mr.start(); 90 T* const h = (T*)mr.end(); 91 assert(mask_bits((intptr_t)l, sizeof(T)-1) == 0 && 92 mask_bits((intptr_t)h, sizeof(T)-1) == 0, 93 "bounded region must be properly aligned"); 94 95 if (p < l) { 96 p = l; 97 } 98 if (end > h) { 99 end = h; 100 } 101 102 for (;p < end; ++p) { 103 Devirtualizer::do_oop(closure, p); 104 } 105 } 106 107 template <bool nv, class OopClosureType> 108 void InstanceMirrorKlass::oop_oop_iterate_statics_bounded(oop obj, OopClosureType* closure, MemRegion mr) { 109 if (UseCompressedOops) { 110 oop_oop_iterate_statics_specialized_bounded<nv, narrowOop>(obj, closure, mr); 111 } else { 112 oop_oop_iterate_statics_specialized_bounded<nv, oop>(obj, closure, mr); 113 } 114 } 115 116 template <bool nv, class OopClosureType> 117 int InstanceMirrorKlass::oop_oop_iterate_bounded(oop obj, OopClosureType* closure, MemRegion mr) { 118 InstanceKlass::oop_oop_iterate_bounded(obj, closure, mr); 119 120 if (Devirtualizer::do_metadata(closure)) { 121 if (mr.contains(obj)) { 122 Klass* klass = java_lang_Class::as_Klass(obj); 123 // We'll get NULL for primitive mirrors. 124 if (klass != NULL) { 125 Devirtualizer::do_klass(closure, klass); 126 } 127 } 128 } 129 130 oop_oop_iterate_statics_bounded(obj, closure, mr); 131 132 return oop_size(obj); 133 } 134 135 136 #define InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix)
137
138 int InstanceMirrorKlass::oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) {
139 return oop_oop_iterate<nvs_to_bool(nv_suffix)>(obj, closure);
140 } 141 142 #if INCLUDE_ALL_GCS 143 #define InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix)
144
145 int InstanceMirrorKlass::oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) {
146 return oop_oop_iterate_reverse<nvs_to_bool(nv_suffix)>(obj, closure);
147 } 148 #else 149 #define InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) 150 #endif 151 152 153 #define InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix)
154
155 int InstanceMirrorKlass::oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* closure, MemRegion mr) {
156 return oop_oop_iterate_bounded<nvs_to_bool(nv_suffix)>(obj, closure, mr);
157 } 158 159 #define ALL_INSTANCE_MIRROR_KLASS_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix)
160 InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN( OopClosureType, nv_suffix)
161 InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m( OopClosureType, nv_suffix)
162 InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) 163 164 #endif // SHARE_VM_OOPS_INSTANCEMIRRORKLASS_INLINE_HPP