annotate src/share/vm/oops/arrayKlass.hpp @ 13212:eb03a7335eb0

Use fixed instead of virtual register for target in far foreign call, since the register allocator does not support virtual registers to be used at call sites.
author Christian Wimmer <christian.wimmer@oracle.com>
date Mon, 02 Dec 2013 14:20:32 -0800
parents 71180a6e5080
children 48314d596a04 096a7e12d63f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
7956
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 6831
diff changeset
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1142
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1142
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: 1142
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1681
diff changeset
25 #ifndef SHARE_VM_OOPS_ARRAYKLASS_HPP
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1681
diff changeset
26 #define SHARE_VM_OOPS_ARRAYKLASS_HPP
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1681
diff changeset
27
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1681
diff changeset
28 #include "memory/universe.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1681
diff changeset
29 #include "oops/klass.hpp"
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
30
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
31 class klassVtable;
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1681
diff changeset
32
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
33 // ArrayKlass is the abstract baseclass for all array classes
0
a61af66fc99e Initial load
duke
parents:
diff changeset
34
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
35 class ArrayKlass: public Klass {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
36 friend class VMStructs;
a61af66fc99e Initial load
duke
parents:
diff changeset
37 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
38 int _dimension; // This is n'th-dimensional array.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
39 Klass* volatile _higher_dimension; // Refers the (n+1)'th-dimensional array (if present).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
40 Klass* volatile _lower_dimension; // Refers the (n-1)'th-dimensional array (if present).
0
a61af66fc99e Initial load
duke
parents:
diff changeset
41 int _vtable_len; // size of vtable for this klass
a61af66fc99e Initial load
duke
parents:
diff changeset
42 oop _component_mirror; // component type, as a java/lang/Class
a61af66fc99e Initial load
duke
parents:
diff changeset
43
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
44 protected:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
45 // Constructors
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
46 // The constructor with the Symbol argument does the real array
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
47 // initialization, the other is a dummy
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
48 ArrayKlass(Symbol* name);
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
49 ArrayKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for cds"); }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
50
0
a61af66fc99e Initial load
duke
parents:
diff changeset
51 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
52 // Testing operation
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
53 bool oop_is_array_slow() const { return true; }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
54
a61af66fc99e Initial load
duke
parents:
diff changeset
55 // Instance variables
a61af66fc99e Initial load
duke
parents:
diff changeset
56 int dimension() const { return _dimension; }
a61af66fc99e Initial load
duke
parents:
diff changeset
57 void set_dimension(int dimension) { _dimension = dimension; }
a61af66fc99e Initial load
duke
parents:
diff changeset
58
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
59 Klass* higher_dimension() const { return _higher_dimension; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
60 void set_higher_dimension(Klass* k) { _higher_dimension = k; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
61 Klass** adr_higher_dimension() { return (Klass**)&this->_higher_dimension;}
0
a61af66fc99e Initial load
duke
parents:
diff changeset
62
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
63 Klass* lower_dimension() const { return _lower_dimension; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
64 void set_lower_dimension(Klass* k) { _lower_dimension = k; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
65 Klass** adr_lower_dimension() { return (Klass**)&this->_lower_dimension;}
0
a61af66fc99e Initial load
duke
parents:
diff changeset
66
a61af66fc99e Initial load
duke
parents:
diff changeset
67 // offset of first element, including any padding for the sake of alignment
a61af66fc99e Initial load
duke
parents:
diff changeset
68 int array_header_in_bytes() const { return layout_helper_header_size(layout_helper()); }
a61af66fc99e Initial load
duke
parents:
diff changeset
69 int log2_element_size() const { return layout_helper_log2_element_size(layout_helper()); }
a61af66fc99e Initial load
duke
parents:
diff changeset
70 // type of elements (T_OBJECT for both oop arrays and array-arrays)
a61af66fc99e Initial load
duke
parents:
diff changeset
71 BasicType element_type() const { return layout_helper_element_type(layout_helper()); }
a61af66fc99e Initial load
duke
parents:
diff changeset
72
a61af66fc99e Initial load
duke
parents:
diff changeset
73 oop component_mirror() const { return _component_mirror; }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
74 void set_component_mirror(oop m) { klass_oop_store(&_component_mirror, m); }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
75 oop* adr_component_mirror() { return (oop*)&this->_component_mirror;}
a61af66fc99e Initial load
duke
parents:
diff changeset
76
a61af66fc99e Initial load
duke
parents:
diff changeset
77 // Compiler/Interpreter offset
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
78 static ByteSize component_mirror_offset() { return in_ByteSize(offset_of(ArrayKlass, _component_mirror)); }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
79
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
80 virtual Klass* java_super() const;//{ return SystemDictionary::Object_klass(); }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
81
a61af66fc99e Initial load
duke
parents:
diff changeset
82 // Allocation
a61af66fc99e Initial load
duke
parents:
diff changeset
83 // Sizes points to the first dimension of the array, subsequent dimensions
a61af66fc99e Initial load
duke
parents:
diff changeset
84 // are always in higher memory. The callers of these set that up.
a61af66fc99e Initial load
duke
parents:
diff changeset
85 virtual oop multi_allocate(int rank, jint* sizes, TRAPS);
a61af66fc99e Initial load
duke
parents:
diff changeset
86 objArrayOop allocate_arrayArray(int n, int length, TRAPS);
a61af66fc99e Initial load
duke
parents:
diff changeset
87
a61af66fc99e Initial load
duke
parents:
diff changeset
88 // Lookup operations
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
89 Method* uncached_lookup_method(Symbol* name, Symbol* signature) const;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
90
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
91 // Casting from Klass*
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
92 static ArrayKlass* cast(Klass* k) {
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
93 assert(k->oop_is_array(), "cast to ArrayKlass");
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
94 return (ArrayKlass*) k;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
95 }
a61af66fc99e Initial load
duke
parents:
diff changeset
96
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
97 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
98 bool compute_is_subtype_of(Klass* k);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
99
a61af66fc99e Initial load
duke
parents:
diff changeset
100 // Sizing
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
101 static int header_size() { return sizeof(ArrayKlass)/HeapWordSize; }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
102 static int static_size(int header_size);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
103
7956
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 6831
diff changeset
104 #if INCLUDE_SERVICES
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 6831
diff changeset
105 virtual void collect_statistics(KlassSizeStats *sz) const {
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 6831
diff changeset
106 Klass::collect_statistics(sz);
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 6831
diff changeset
107 // Do nothing for now, but remember to modify if you add new
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 6831
diff changeset
108 // stuff to ArrayKlass.
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 6831
diff changeset
109 }
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 6831
diff changeset
110 #endif
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 6831
diff changeset
111
0
a61af66fc99e Initial load
duke
parents:
diff changeset
112 // Java vtable
a61af66fc99e Initial load
duke
parents:
diff changeset
113 klassVtable* vtable() const; // return new klassVtable
a61af66fc99e Initial load
duke
parents:
diff changeset
114 int vtable_length() const { return _vtable_len; }
a61af66fc99e Initial load
duke
parents:
diff changeset
115 static int base_vtable_length() { return Universe::base_vtable_size(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
116 void set_vtable_length(int len) { assert(len == base_vtable_length(), "bad length"); _vtable_len = len; }
a61af66fc99e Initial load
duke
parents:
diff changeset
117 protected:
a61af66fc99e Initial load
duke
parents:
diff changeset
118 inline intptr_t* start_of_vtable() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
119
a61af66fc99e Initial load
duke
parents:
diff changeset
120 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
121 // Iterators
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
122 void array_klasses_do(void f(Klass* k));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
123 void array_klasses_do(void f(Klass* k, TRAPS), TRAPS);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
124
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
125 // GC support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
126 virtual void oops_do(OopClosure* cl);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
127
0
a61af66fc99e Initial load
duke
parents:
diff changeset
128 // Return a handle.
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
129 static void complete_create_array_klass(ArrayKlass* k, KlassHandle super_klass, TRAPS);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
130
0
a61af66fc99e Initial load
duke
parents:
diff changeset
131
1681
126ea7725993 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 1552
diff changeset
132 // jvm support
126ea7725993 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 1552
diff changeset
133 jint compute_modifier_flags(TRAPS) const;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
134
1681
126ea7725993 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 1552
diff changeset
135 // JVMTI support
126ea7725993 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 1552
diff changeset
136 jint jvmti_class_status() const;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
137
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
138 // CDS support - remove and restore oops from metadata. Oops are not shared.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
139 virtual void remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
140 virtual void restore_unshareable_info(TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
141
0
a61af66fc99e Initial load
duke
parents:
diff changeset
142 // Printing
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
143 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
144 void print_value_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
145
0
a61af66fc99e Initial load
duke
parents:
diff changeset
146 void oop_print_on(oop obj, outputStream* st);
1681
126ea7725993 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 1552
diff changeset
147
0
a61af66fc99e Initial load
duke
parents:
diff changeset
148 // Verification
11034
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 7956
diff changeset
149 void verify_on(outputStream* st, bool check_dictionary);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 4762
diff changeset
150
0
a61af66fc99e Initial load
duke
parents:
diff changeset
151 void oop_verify_on(oop obj, outputStream* st);
a61af66fc99e Initial load
duke
parents:
diff changeset
152 };
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1681
diff changeset
153
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1681
diff changeset
154 #endif // SHARE_VM_OOPS_ARRAYKLASS_HPP