Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/memory/oopFactory.cpp@8c95980d0b66 (annotated)
src/share/vm/memory/oopFactory.cpp
Sat, 07 Nov 2020 10:30:02 +0800
- author
- aoqi
- date
- Sat, 07 Nov 2020 10:30:02 +0800
- changeset 10026
- 8c95980d0b66
- parent 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
Added tag mips-jdk8u275-b01 for changeset d3b4d62f391f
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #include "precompiled.hpp" |
| aoqi@0 | 26 | #include "classfile/javaClasses.hpp" |
| aoqi@0 | 27 | #include "classfile/symbolTable.hpp" |
| aoqi@0 | 28 | #include "classfile/systemDictionary.hpp" |
| aoqi@0 | 29 | #include "classfile/vmSymbols.hpp" |
| aoqi@0 | 30 | #include "gc_interface/collectedHeap.inline.hpp" |
| aoqi@0 | 31 | #include "memory/oopFactory.hpp" |
| aoqi@0 | 32 | #include "memory/resourceArea.hpp" |
| aoqi@0 | 33 | #include "memory/universe.inline.hpp" |
| aoqi@0 | 34 | #include "oops/instanceKlass.hpp" |
| aoqi@0 | 35 | #include "oops/instanceOop.hpp" |
| aoqi@0 | 36 | #include "oops/objArrayOop.hpp" |
| aoqi@0 | 37 | #include "oops/oop.inline.hpp" |
| aoqi@0 | 38 | |
| aoqi@0 | 39 | |
| aoqi@0 | 40 | typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) { |
| aoqi@0 | 41 | int length = utf8_str == NULL ? 0 : UTF8::unicode_length(utf8_str); |
| aoqi@0 | 42 | typeArrayOop result = new_charArray(length, CHECK_NULL); |
| aoqi@0 | 43 | if (length > 0) { |
| aoqi@0 | 44 | UTF8::convert_to_unicode(utf8_str, result->char_at_addr(0), length); |
| aoqi@0 | 45 | } |
| aoqi@0 | 46 | return result; |
| aoqi@0 | 47 | } |
| aoqi@0 | 48 | |
| aoqi@0 | 49 | typeArrayOop oopFactory::new_tenured_charArray(int length, TRAPS) { |
| aoqi@0 | 50 | return TypeArrayKlass::cast(Universe::charArrayKlassObj())->allocate(length, THREAD); |
| aoqi@0 | 51 | } |
| aoqi@0 | 52 | |
| aoqi@0 | 53 | typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) { |
| aoqi@0 | 54 | Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); |
| aoqi@0 | 55 | TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); |
| aoqi@0 | 56 | typeArrayOop result = type_asArrayKlass->allocate(length, THREAD); |
| aoqi@0 | 57 | return result; |
| aoqi@0 | 58 | } |
| aoqi@0 | 59 | |
| aoqi@0 | 60 | // Create a Java array that points to metadata. |
| aoqi@0 | 61 | // As far as Java code is concerned, a metaData array is either an array of |
| aoqi@0 | 62 | // int or long depending on pointer size. Only a few things use this, like |
| aoqi@0 | 63 | // stack trace elements in Throwable. They cast Method* into this type. |
| aoqi@0 | 64 | // Note:can't point to symbols because there's no way to unreference count |
| aoqi@0 | 65 | // them when this object goes away. |
| aoqi@0 | 66 | typeArrayOop oopFactory::new_metaDataArray(int length, TRAPS) { |
| aoqi@0 | 67 | BasicType type = LP64_ONLY(T_LONG) NOT_LP64(T_INT); |
| aoqi@0 | 68 | Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); |
| aoqi@0 | 69 | TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); |
| aoqi@0 | 70 | typeArrayOop result = type_asArrayKlass->allocate_common(length, true, THREAD); |
| aoqi@0 | 71 | return result; |
| aoqi@0 | 72 | } |
| aoqi@0 | 73 | |
| aoqi@0 | 74 | typeArrayOop oopFactory::new_typeArray_nozero(BasicType type, int length, TRAPS) { |
| aoqi@0 | 75 | Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); |
| aoqi@0 | 76 | TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); |
| aoqi@0 | 77 | typeArrayOop result = type_asArrayKlass->allocate_common(length, false, THREAD); |
| aoqi@0 | 78 | return result; |
| aoqi@0 | 79 | } |
| aoqi@0 | 80 | |
| aoqi@0 | 81 | |
| aoqi@0 | 82 | objArrayOop oopFactory::new_objArray(Klass* klass, int length, TRAPS) { |
| aoqi@0 | 83 | assert(klass->is_klass(), "must be instance class"); |
| aoqi@0 | 84 | if (klass->oop_is_array()) { |
| aoqi@0 | 85 | return ((ArrayKlass*)klass)->allocate_arrayArray(1, length, THREAD); |
| aoqi@0 | 86 | } else { |
| aoqi@0 | 87 | assert (klass->oop_is_instance(), "new object array with klass not an InstanceKlass"); |
| aoqi@0 | 88 | return ((InstanceKlass*)klass)->allocate_objArray(1, length, THREAD); |
| aoqi@0 | 89 | } |
| aoqi@0 | 90 | } |
