1 /*

     2  * Copyright (c) 1997, 2017, 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/systemDictionary.hpp"

    29 #include "classfile/vmSymbols.hpp"

    30 #include "gc/shared/collectedHeap.inline.hpp"

    31 #include "memory/oopFactory.hpp"

    32 #include "memory/resourceArea.hpp"

    33 #include "memory/universe.inline.hpp"

    34 #include "oops/instanceKlass.hpp"

    35 #include "oops/instanceOop.hpp"

    36 #include "oops/objArrayOop.hpp"

    37 #include "oops/oop.inline.hpp"

    38 

    39 

    40 typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) {

    41   int length = utf8_str == NULL ? 0 : UTF8::unicode_length(utf8_str);

    42   typeArrayOop result = new_charArray(length, CHECK_NULL);

    43   if (length > 0) {

    44     UTF8::convert_to_unicode(utf8_str, result->char_at_addr(0), length);

    45   }

    46   return result;

    47 }

    48 

    49 typeArrayOop oopFactory::new_tenured_charArray(int length, TRAPS) {

    50   return TypeArrayKlass::cast(Universe::charArrayKlassObj())->allocate(length, THREAD);

    51 }

    52 

    53 typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) {

    54   Klass* type_asKlassOop = Universe::typeArrayKlassObj(type);

    55   TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop);

    56   typeArrayOop result = type_asArrayKlass->allocate(length, THREAD);

    57   return result;

    58 }

    59 

    60 // Create a Java array that points to Symbol.

    61 // As far as Java code is concerned, a Symbol array is either an array of

    62 // int or long depending on pointer size.  Only stack trace elements in Throwable use

    63 // this.  They cast Symbol* into this type.

    64 typeArrayOop oopFactory::new_symbolArray(int length, TRAPS) {

    65   BasicType type = LP64_ONLY(T_LONG) NOT_LP64(T_INT);

    66   Klass* type_asKlassOop = Universe::typeArrayKlassObj(type);

    67   TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop);

    68   typeArrayOop result = type_asArrayKlass->allocate(length, THREAD);

    69   return result;

    70 }

    71 

    72 typeArrayOop oopFactory::new_typeArray_nozero(BasicType type, int length, TRAPS) {

    73   Klass* type_asKlassOop = Universe::typeArrayKlassObj(type);

    74   TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop);

    75   typeArrayOop result = type_asArrayKlass->allocate_common(length, false, THREAD);

    76   return result;

    77 }

    78 

    79 

    80 objArrayOop oopFactory::new_objArray(Klass* klass, int length, TRAPS) {

    81   assert(klass->is_klass(), "must be instance class");

    82   if (klass->is_array_klass()) {

    83     return ArrayKlass::cast(klass)->allocate_arrayArray(1, length, THREAD);

    84   } else {

    85     return InstanceKlass::cast(klass)->allocate_objArray(1, length, THREAD);

    86   }

    87 }

    88 

    89 objArrayHandle oopFactory::new_objArray_handle(Klass* klass, int length, TRAPS) {

    90   objArrayOop obj = new_objArray(klass, length, CHECK_(objArrayHandle()));

    91   return objArrayHandle(THREAD, obj);

    92 }

    93 

    94 typeArrayHandle oopFactory::new_byteArray_handle(int length, TRAPS) {

    95   typeArrayOop obj = new_byteArray(length, CHECK_(typeArrayHandle()));

    96   return typeArrayHandle(THREAD, obj);

    97 }