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 }