Mercurial > hg > truffle
annotate src/share/vm/oops/oopsHierarchy.hpp @ 2376:c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
Reviewed-by: kvn, coleenp, twisti, stefank
| author | never |
|---|---|
| date | Fri, 18 Mar 2011 16:00:34 -0700 |
| parents | 3582bf76420e |
| children | da91efe96a93 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2177
diff
changeset
|
2 * Copyright (c) 1997, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
845
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
845
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
845
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_OOPS_OOPSHIERARCHY_HPP |
| 26 #define SHARE_VM_OOPS_OOPSHIERARCHY_HPP | |
| 27 | |
| 28 #include "runtime/globals.hpp" | |
| 29 #include "utilities/globalDefinitions.hpp" | |
| 30 | |
| 0 | 31 // OBJECT hierarchy |
| 32 // This hierarchy is a representation hierarchy, i.e. if A is a superclass | |
| 33 // of B, A's representation is a prefix of B's representation. | |
| 34 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
35 typedef juint narrowOop; // Offset instead of address for an oop within a java object |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
36 typedef class klassOopDesc* wideKlassOop; // to keep SA happy and unhandled oop |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
37 // detector happy. |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
579
diff
changeset
|
38 typedef void* OopOrNarrowOopStar; |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
39 |
| 0 | 40 #ifndef CHECK_UNHANDLED_OOPS |
| 41 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
42 typedef class oopDesc* oop; |
| 0 | 43 typedef class instanceOopDesc* instanceOop; |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
44 typedef class methodOopDesc* methodOop; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
45 typedef class constMethodOopDesc* constMethodOop; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
46 typedef class methodDataOopDesc* methodDataOop; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
47 typedef class arrayOopDesc* arrayOop; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
48 typedef class objArrayOopDesc* objArrayOop; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
49 typedef class typeArrayOopDesc* typeArrayOop; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
50 typedef class constantPoolOopDesc* constantPoolOop; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
51 typedef class constantPoolCacheOopDesc* constantPoolCacheOop; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
52 typedef class klassOopDesc* klassOop; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
53 typedef class markOopDesc* markOop; |
| 0 | 54 typedef class compiledICHolderOopDesc* compiledICHolderOop; |
| 55 | |
| 56 #else | |
| 57 | |
| 58 | |
| 59 // When CHECK_UNHANDLED_OOPS is defined, an "oop" is a class with a | |
| 60 // carefully chosen set of constructors and conversion operators to go | |
| 61 // to and from the underlying oopDesc pointer type. | |
| 62 // | |
| 63 // Because oop and its subclasses <type>Oop are class types, arbitrary | |
| 64 // conversions are not accepted by the compiler, and you may get a message | |
| 65 // about overloading ambiguity (between long and int is common when converting | |
| 66 // from a constant in 64 bit mode), or unable to convert from type to 'oop'. | |
| 67 // Applying a cast to one of these conversion operators first will get to the | |
| 68 // underlying oopDesc* type if appropriate. | |
| 69 // Converting NULL to oop to Handle implicit is no longer accepted by the | |
| 70 // compiler because there are too many steps in the conversion. Use Handle() | |
| 71 // instead, which generates less code anyway. | |
| 72 | |
| 73 class Thread; | |
| 74 typedef class markOopDesc* markOop; | |
| 75 class PromotedObject; | |
| 76 | |
| 77 | |
| 78 class oop { | |
| 79 oopDesc* _o; | |
| 80 | |
| 81 void register_oop(); | |
| 82 void unregister_oop(); | |
| 83 | |
| 84 // friend class markOop; | |
| 85 public: | |
| 86 void set_obj(const void* p) { | |
| 87 raw_set_obj(p); | |
| 88 if (CheckUnhandledOops) register_oop(); | |
| 89 } | |
| 90 void raw_set_obj(const void* p) { _o = (oopDesc*)p; } | |
| 91 | |
| 92 oop() { set_obj(NULL); } | |
| 93 oop(const volatile oop& o) { set_obj(o.obj()); } | |
| 94 oop(const void* p) { set_obj(p); } | |
| 95 oop(intptr_t i) { set_obj((void *)i); } | |
| 96 #ifdef _LP64 | |
| 97 oop(int i) { set_obj((void *)i); } | |
| 98 #endif | |
| 99 ~oop() { | |
| 100 if (CheckUnhandledOops) unregister_oop(); | |
| 101 } | |
| 102 | |
| 103 oopDesc* obj() const volatile { return _o; } | |
| 104 | |
| 105 // General access | |
| 106 oopDesc* operator->() const { return obj(); } | |
| 107 bool operator==(const oop o) const { return obj() == o.obj(); } | |
| 108 bool operator==(void *p) const { return obj() == p; } | |
| 109 bool operator!=(const oop o) const { return obj() != o.obj(); } | |
| 110 bool operator!=(void *p) const { return obj() != p; } | |
| 111 bool operator==(intptr_t p) const { return obj() == (oopDesc*)p; } | |
| 112 bool operator!=(intptr_t p) const { return obj() != (oopDesc*)p; } | |
| 113 | |
| 114 bool operator<(oop o) const { return obj() < o.obj(); } | |
| 115 bool operator>(oop o) const { return obj() > o.obj(); } | |
| 116 bool operator<=(oop o) const { return obj() <= o.obj(); } | |
| 117 bool operator>=(oop o) const { return obj() >= o.obj(); } | |
| 118 bool operator!() const { return !obj(); } | |
| 119 | |
| 120 // Cast | |
| 121 operator void* () const { return (void *)obj(); } | |
| 122 operator HeapWord* () const { return (HeapWord*)obj(); } | |
| 123 operator oopDesc* () const { return obj(); } | |
| 124 operator intptr_t* () const { return (intptr_t*)obj(); } | |
| 125 operator PromotedObject* () const { return (PromotedObject*)obj(); } | |
| 126 operator markOop () const { return markOop(obj()); } | |
| 127 | |
| 128 operator address () const { return (address)obj(); } | |
| 129 operator intptr_t () const { return (intptr_t)obj(); } | |
| 130 | |
| 131 // from javaCalls.cpp | |
| 132 operator jobject () const { return (jobject)obj(); } | |
| 133 // from javaClasses.cpp | |
| 134 operator JavaThread* () const { return (JavaThread*)obj(); } | |
|
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
196
diff
changeset
|
135 |
|
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
196
diff
changeset
|
136 #ifndef _LP64 |
| 0 | 137 // from jvm.cpp |
| 138 operator jlong* () const { return (jlong*)obj(); } | |
|
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
196
diff
changeset
|
139 #endif |
| 0 | 140 |
| 141 // from parNewGeneration and other things that want to get to the end of | |
| 142 // an oop for stuff (like constMethodKlass.cpp, objArrayKlass.cpp) | |
| 143 operator oop* () const { return (oop *)obj(); } | |
| 144 }; | |
| 145 | |
| 146 #define DEF_OOP(type) \ | |
| 147 class type##OopDesc; \ | |
| 148 class type##Oop : public oop { \ | |
| 149 public: \ | |
| 150 type##Oop() : oop() {} \ | |
| 151 type##Oop(const volatile oop& o) : oop(o) {} \ | |
| 152 type##Oop(const void* p) : oop(p) {} \ | |
| 153 operator type##OopDesc* () const { return (type##OopDesc*)obj(); } \ | |
| 154 type##OopDesc* operator->() const { \ | |
| 155 return (type##OopDesc*)obj(); \ | |
| 156 } \ | |
| 157 }; \ | |
| 158 | |
| 159 DEF_OOP(instance); | |
| 160 DEF_OOP(method); | |
| 161 DEF_OOP(methodData); | |
| 162 DEF_OOP(array); | |
| 163 DEF_OOP(constMethod); | |
| 164 DEF_OOP(constantPool); | |
| 165 DEF_OOP(constantPoolCache); | |
| 166 DEF_OOP(objArray); | |
| 167 DEF_OOP(typeArray); | |
| 168 DEF_OOP(klass); | |
| 169 DEF_OOP(compiledICHolder); | |
| 170 | |
| 171 #endif // CHECK_UNHANDLED_OOPS | |
| 172 | |
| 173 // The klass hierarchy is separate from the oop hierarchy. | |
| 174 | |
| 175 class Klass; | |
| 176 class instanceKlass; | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2177
diff
changeset
|
177 class instanceMirrorKlass; |
| 0 | 178 class instanceRefKlass; |
| 179 class methodKlass; | |
| 180 class constMethodKlass; | |
| 181 class methodDataKlass; | |
| 182 class klassKlass; | |
| 183 class instanceKlassKlass; | |
| 184 class arrayKlassKlass; | |
| 185 class objArrayKlassKlass; | |
| 186 class typeArrayKlassKlass; | |
| 187 class arrayKlass; | |
| 188 class objArrayKlass; | |
| 189 class typeArrayKlass; | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
190 class constantPoolKlass; |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
191 class constantPoolCacheKlass; |
| 0 | 192 class compiledICHolderKlass; |
| 1972 | 193 |
| 194 #endif // SHARE_VM_OOPS_OOPSHIERARCHY_HPP |