1 /* 2 * Copyright (c) 1997, 2023, 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 "precompiled.hpp" 26 #include "classfile/javaClasses.hpp" 27 #include "classfile/symbolTable.hpp" 28 #include "classfile/vmSymbols.hpp" 29 #include "gc/shared/collectedHeap.inline.hpp" 30 #include "memory/oopFactory.hpp" 31 #include "memory/resourceArea.hpp" 32 #include "memory/universe.hpp" 33 #include "oops/instanceKlass.hpp" 34 #include "oops/instanceOop.hpp" 35 #include "oops/objArrayKlass.hpp" 36 #include "oops/objArrayOop.hpp" 37 #include "oops/oop.inline.hpp" 38 #include "oops/typeArrayKlass.hpp" 39 #include "oops/typeArrayOop.inline.hpp" 40 #include "runtime/handles.inline.hpp" 41 #include "utilities/utf8.hpp" 42 43 typeArrayOop oopFactory::new_boolArray(int length, TRAPS) { 44 return TypeArrayKlass::cast(Universe::boolArrayKlassObj())->allocate(length, THREAD); 45 } 46 47 typeArrayOop oopFactory::new_charArray(int length, TRAPS) { 48 return TypeArrayKlass::cast(Universe::charArrayKlassObj())->allocate(length, THREAD); 49 } 50 51 typeArrayOop oopFactory::new_floatArray(int length, TRAPS) { 52 return TypeArrayKlass::cast(Universe::floatArrayKlassObj())->allocate(length, THREAD); 53 } 54 55 typeArrayOop oopFactory::new_doubleArray(int length, TRAPS) { 56 return TypeArrayKlass::cast(Universe::doubleArrayKlassObj())->allocate(length, THREAD); 57 } 58 59 typeArrayOop oopFactory::new_byteArray(int length, TRAPS) { 60 return TypeArrayKlass::cast(Universe::byteArrayKlassObj())->allocate(length, THREAD); 61 } 62 63 typeArrayOop oopFactory::new_shortArray(int length, TRAPS) { 64 return TypeArrayKlass::cast(Universe::shortArrayKlassObj())->allocate(length, THREAD); 65 } 66 67 typeArrayOop oopFactory::new_intArray(int length, TRAPS) { 68 return TypeArrayKlass::cast(Universe::intArrayKlassObj())->allocate(length, THREAD); 69 } 70 71 typeArrayOop oopFactory::new_longArray(int length, TRAPS) { 72 return TypeArrayKlass::cast(Universe::longArrayKlassObj())->allocate(length, THREAD); 73 } 74 75 // create java.lang.Object[] 76 objArrayOop oopFactory::new_objectArray(int length, TRAPS) { 77 assert(Universe::objectArrayKlassObj() != nullptr, "Too early?"); 78 return ObjArrayKlass::cast(Universe::objectArrayKlassObj())->allocate(length, THREAD); 79 } 80 81 typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) { 82 int length = utf8_str == nullptr ? 0 : UTF8::unicode_length(utf8_str); 83 typeArrayOop result = new_charArray(length, CHECK_NULL); 84 if (length > 0) { 85 UTF8::convert_to_unicode(utf8_str, result->char_at_addr(0), length); 86 } 87 return result; 88 } 89 90 typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) { 91 Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); 92 TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); 93 typeArrayOop result = type_asArrayKlass->allocate(length, THREAD); 94 return result; 95 } 96 97 // Create a Java array that points to Symbol. 98 // As far as Java code is concerned, a Symbol array is either an array of 99 // int or long depending on pointer size. Only stack trace elements in Throwable use 100 // this. They cast Symbol* into this type. 101 typeArrayOop oopFactory::new_symbolArray(int length, TRAPS) { 102 BasicType type = LP64_ONLY(T_LONG) NOT_LP64(T_INT); 103 Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); 104 TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); 105 typeArrayOop result = type_asArrayKlass->allocate(length, THREAD); 106 return result; 107 } 108 109 typeArrayOop oopFactory::new_typeArray_nozero(BasicType type, int length, TRAPS) { 110 Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); 111 TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); 112 typeArrayOop result = type_asArrayKlass->allocate_common(length, false, THREAD); 113 return result; 114 } 115 116 117 objArrayOop oopFactory::new_objArray(Klass* klass, int length, TRAPS) { 118 assert(klass->is_klass(), "must be instance class"); 119 if (klass->is_array_klass()) { 120 return ArrayKlass::cast(klass)->allocate_arrayArray(1, length, THREAD); 121 } else { 122 return InstanceKlass::cast(klass)->allocate_objArray(1, length, THREAD); 123 } 124 } 125 126 objArrayHandle oopFactory::new_objArray_handle(Klass* klass, int length, TRAPS) { 127 objArrayOop obj = new_objArray(klass, length, CHECK_(objArrayHandle())); 128 return objArrayHandle(THREAD, obj); 129 }