1 /*
2 * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "classfile/javaClasses.hpp"
26 #include "classfile/symbolTable.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "gc/shared/collectedHeap.inline.hpp"
29 #include "memory/oopFactory.hpp"
30 #include "memory/resourceArea.hpp"
31 #include "memory/universe.hpp"
32 #include "oops/instanceKlass.hpp"
33 #include "oops/instanceOop.hpp"
34 #include "oops/objArrayKlass.hpp"
35 #include "oops/objArrayOop.hpp"
36 #include "oops/oop.inline.hpp"
37 #include "oops/typeArrayKlass.hpp"
38 #include "oops/typeArrayOop.inline.hpp"
39 #include "runtime/handles.inline.hpp"
40 #include "utilities/utf8.hpp"
41
42 typeArrayOop oopFactory::new_boolArray(int length, TRAPS) {
43 return Universe::boolArrayKlass()->allocate_instance(length, THREAD);
44 }
45
46 typeArrayOop oopFactory::new_charArray(int length, TRAPS) {
47 return Universe::charArrayKlass()->allocate_instance(length, THREAD);
48 }
49
50 typeArrayOop oopFactory::new_floatArray(int length, TRAPS) {
51 return Universe::floatArrayKlass()->allocate_instance(length, THREAD);
52 }
53
54 typeArrayOop oopFactory::new_doubleArray(int length, TRAPS) {
55 return Universe::doubleArrayKlass()->allocate_instance(length, THREAD);
56 }
57
58 typeArrayOop oopFactory::new_byteArray(int length, TRAPS) {
59 return Universe::byteArrayKlass()->allocate_instance(length, THREAD);
60 }
61
62 typeArrayOop oopFactory::new_shortArray(int length, TRAPS) {
63 return Universe::shortArrayKlass()->allocate_instance(length, THREAD);
64 }
65
66 typeArrayOop oopFactory::new_intArray(int length, TRAPS) {
67 return Universe::intArrayKlass()->allocate_instance(length, THREAD);
68 }
69
70 typeArrayOop oopFactory::new_longArray(int length, TRAPS) {
71 return Universe::longArrayKlass()->allocate_instance(length, THREAD);
72 }
73
74 // create java.lang.Object[]
75 objArrayOop oopFactory::new_objectArray(int length, TRAPS) {
76 return Universe::objectArrayKlass()->allocate_instance(length, THREAD);
77 }
78
79 typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) {
80 int length = utf8_str == nullptr ? 0 : UTF8::unicode_length(utf8_str);
81 typeArrayOop result = new_charArray(length, CHECK_NULL);
82 if (length > 0) {
83 UTF8::convert_to_unicode(utf8_str, result->char_at_addr(0), length);
84 }
85 return result;
86 }
87
88 typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) {
89 TypeArrayKlass* klass = Universe::typeArrayKlass(type);
90 return klass->allocate_instance(length, THREAD);
91 }
92
93 // Create a Java array that points to Symbol.
94 // As far as Java code is concerned, a Symbol array is either an array of
95 // int or long depending on pointer size. Only stack trace elements in Throwable use
96 // this. They cast Symbol* into this type.
97 typeArrayOop oopFactory::new_symbolArray(int length, TRAPS) {
98 BasicType type = LP64_ONLY(T_LONG) NOT_LP64(T_INT);
99 return new_typeArray(type, length, THREAD);
100 }
101
102 typeArrayOop oopFactory::new_typeArray_nozero(BasicType type, int length, TRAPS) {
103 TypeArrayKlass* klass = Universe::typeArrayKlass(type);
104 return klass->allocate_common(length, false, THREAD);
105 }
106
107 objArrayOop oopFactory::new_objArray(Klass* klass, int length, TRAPS) {
108 ArrayKlass* ak = klass->array_klass(CHECK_NULL);
109 return ObjArrayKlass::cast(ak)->allocate_instance(length, THREAD);
110 }
111
112 objArrayHandle oopFactory::new_objArray_handle(Klass* klass, int length, TRAPS) {
113 objArrayOop obj = new_objArray(klass, length, CHECK_(objArrayHandle()));
114 return objArrayHandle(THREAD, obj);
115 }
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1 /*
2 * Copyright (c) 1997, 2026, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "classfile/javaClasses.hpp"
26 #include "classfile/symbolTable.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "gc/shared/collectedHeap.inline.hpp"
29 #include "memory/oopFactory.hpp"
30 #include "memory/resourceArea.hpp"
31 #include "memory/universe.hpp"
32 #include "oops/arrayKlass.hpp"
33 #include "oops/flatArrayKlass.hpp"
34 #include "oops/flatArrayOop.inline.hpp"
35 #include "oops/instanceKlass.hpp"
36 #include "oops/instanceOop.hpp"
37 #include "oops/objArrayKlass.hpp"
38 #include "oops/objArrayOop.inline.hpp"
39 #include "oops/oop.inline.hpp"
40 #include "oops/oopCast.inline.hpp"
41 #include "oops/refArrayKlass.hpp"
42 #include "oops/typeArrayKlass.hpp"
43 #include "oops/typeArrayOop.inline.hpp"
44 #include "runtime/handles.inline.hpp"
45 #include "utilities/utf8.hpp"
46
47 typeArrayOop oopFactory::new_boolArray(int length, TRAPS) {
48 return Universe::boolArrayKlass()->allocate_instance(length, THREAD);
49 }
50
51 typeArrayOop oopFactory::new_charArray(int length, TRAPS) {
52 return Universe::charArrayKlass()->allocate_instance(length, THREAD);
53 }
54
55 typeArrayOop oopFactory::new_floatArray(int length, TRAPS) {
56 return Universe::floatArrayKlass()->allocate_instance(length, THREAD);
57 }
58
59 typeArrayOop oopFactory::new_doubleArray(int length, TRAPS) {
60 return Universe::doubleArrayKlass()->allocate_instance(length, THREAD);
61 }
62
63 typeArrayOop oopFactory::new_byteArray(int length, TRAPS) {
64 return Universe::byteArrayKlass()->allocate_instance(length, THREAD);
65 }
66
67 typeArrayOop oopFactory::new_shortArray(int length, TRAPS) {
68 return Universe::shortArrayKlass()->allocate_instance(length, THREAD);
69 }
70
71 typeArrayOop oopFactory::new_intArray(int length, TRAPS) {
72 return Universe::intArrayKlass()->allocate_instance(length, THREAD);
73 }
74
75 typeArrayOop oopFactory::new_longArray(int length, TRAPS) {
76 return Universe::longArrayKlass()->allocate_instance(length, THREAD);
77 }
78
79 // create java.lang.Object[]
80 objArrayOop oopFactory::new_objectArray(int length, TRAPS) {
81 return Universe::objectArrayKlass()->allocate_instance(length, ArrayProperties::Default(), THREAD);
82 }
83
84 typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) {
85 int length = utf8_str == nullptr ? 0 : UTF8::unicode_length(utf8_str);
86 typeArrayOop result = new_charArray(length, CHECK_NULL);
87 if (length > 0) {
88 UTF8::convert_to_unicode(utf8_str, result->char_at_addr(0), length);
89 }
90 return result;
91 }
92
93 typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) {
94 TypeArrayKlass* klass = Universe::typeArrayKlass(type);
95 return klass->allocate_instance(length, THREAD);
96 }
97
98 // Create a Java array that points to Symbol.
99 // As far as Java code is concerned, a Symbol array is either an array of
100 // int or long depending on pointer size. Only stack trace elements in Throwable use
101 // this. They cast Symbol* into this type.
102 typeArrayOop oopFactory::new_symbolArray(int length, TRAPS) {
103 BasicType type = LP64_ONLY(T_LONG) NOT_LP64(T_INT);
104 return new_typeArray(type, length, THREAD);
105 }
106
107 typeArrayOop oopFactory::new_typeArray_nozero(BasicType type, int length, TRAPS) {
108 TypeArrayKlass* klass = Universe::typeArrayKlass(type);
109 return klass->allocate_common(length, false, THREAD);
110 }
111
112 objArrayOop oopFactory::new_objArray(Klass* klass, int length, ArrayProperties properties, TRAPS) {
113 assert(!klass->is_array_klass() || properties == ArrayProperties::Default(), "properties only apply to single dimension arrays");
114 ArrayKlass* ak = klass->array_klass(CHECK_NULL);
115 return ObjArrayKlass::cast(ak)->allocate_instance(length, properties, THREAD);
116 }
117
118 objArrayOop oopFactory::new_objArray(Klass* klass, int length, TRAPS) {
119 return new_objArray(klass, length, ArrayProperties::Default(), THREAD);
120 }
121
122 refArrayOop oopFactory::new_refArray(Klass* klass, int length, ArrayProperties properties, TRAPS) {
123 ArrayKlass* array_type = klass->array_klass(CHECK_NULL);
124 ArrayDescription ad(Klass::RefArrayKlassKind, properties, LayoutKind::REFERENCE);
125 ObjArrayKlass* oak = ObjArrayKlass::cast(array_type)->klass_from_description(ad, CHECK_NULL);
126 // Cast below must pass because the array description required a RefArrayKlass
127 RefArrayKlass* rak = RefArrayKlass::cast(oak);
128 oop array = rak->RefArrayKlass::allocate_instance(length, properties, CHECK_NULL);
129 return oop_cast<refArrayOop>(array);
130 }
131
132 refArrayOop oopFactory::new_refArray(Klass* klass, int length, TRAPS) {
133 return new_refArray(klass, length, ArrayProperties::Default(), THREAD);
134 }
135
136 flatArrayOop oopFactory::new_flatArray(FlatArrayKlass* klass, int length, TRAPS) {
137 return flatArrayOop(klass->allocate_instance(length, klass->properties(), THREAD));
138 }
139
140 flatArrayOop oopFactory::new_flatArray(Klass* k, int length, ArrayProperties props, LayoutKind lk, TRAPS) {
141 InlineKlass* klass = InlineKlass::cast(k);
142
143 ArrayKlass* array_type = klass->array_klass(CHECK_NULL);
144 ObjArrayKlass* oak = ObjArrayKlass::cast(array_type)->klass_with_properties(props, CHECK_NULL);
145
146 assert(oak->is_flatArray_klass(), "Expected to be");
147 assert(FlatArrayKlass::cast(oak)->layout_kind() == lk, "Unexpected layout kind");
148
149 flatArrayOop oop = (flatArrayOop)FlatArrayKlass::cast(oak)->allocate_instance(length, props, CHECK_NULL);
150 assert(oop == nullptr || oop->is_flatArray(), "sanity");
151 assert(oop == nullptr || oop->klass()->is_flatArray_klass(), "sanity");
152
153 return oop;
154 }
155
156 objArrayHandle oopFactory::new_objArray_handle(Klass* klass, int length, TRAPS) {
157 objArrayOop obj = new_objArray(klass, length, CHECK_(objArrayHandle()));
158 return objArrayHandle(THREAD, obj);
159 }
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