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 #ifndef SHARE_MEMORY_OOPFACTORY_HPP 26 #define SHARE_MEMORY_OOPFACTORY_HPP 27 28 #include "memory/referenceType.hpp" 29 #include "oops/arrayKlass.hpp" 30 #include "oops/oopsHierarchy.hpp" 31 #include "runtime/handles.hpp" 32 #include "utilities/exceptions.hpp" 33 34 // oopFactory is a class used for creating new objects. 35 36 class oopFactory: AllStatic { 37 public: 38 // Basic type leaf array allocation 39 static typeArrayOop new_boolArray (int length, TRAPS); 40 static typeArrayOop new_charArray (int length, TRAPS); 41 static typeArrayOop new_floatArray (int length, TRAPS); 42 static typeArrayOop new_doubleArray(int length, TRAPS); 43 static typeArrayOop new_byteArray (int length, TRAPS); 44 static typeArrayOop new_shortArray (int length, TRAPS); 45 static typeArrayOop new_intArray (int length, TRAPS); 46 static typeArrayOop new_longArray (int length, TRAPS); 47 48 // create java.lang.Object[] 49 static objArrayOop new_objectArray(int length, TRAPS); 50 51 static typeArrayOop new_charArray(const char* utf8_str, TRAPS); 52 53 static typeArrayOop new_typeArray(BasicType type, int length, TRAPS); 54 static typeArrayOop new_typeArray_nozero(BasicType type, int length, TRAPS); 55 static typeArrayOop new_symbolArray(int length, TRAPS); 56 57 // Regular object arrays 58 static objArrayOop new_objArray(Klass* klass, int length, TRAPS); 59 static objArrayOop new_objArray(Klass* klass, int length, ArrayKlass::ArrayProperties properties, TRAPS); 60 61 // Allocate refArray instance given a refArrayKlass. 62 static objArrayOop new_refArray(Klass* array_klass, int length, TRAPS); 63 64 // Value arrays... 65 // LWorld: 66 // - Q-type signature allocation should use this path. 67 // - L-type signature allocation should use new_objArray 68 // 69 // Method specifically null free and possibly flat if possible 70 // i.e. flatArrayOop if flattening can be done, else "null free" objArrayOop 71 static flatArrayOop new_flatArray(Klass* klass, int length, ArrayKlass::ArrayProperties props, LayoutKind lk, TRAPS); 72 73 // Helper that returns a Handle 74 static objArrayHandle new_objArray_handle(Klass* klass, int length, TRAPS); 75 }; 76 77 #endif // SHARE_MEMORY_OOPFACTORY_HPP