Mercurial > hg > truffle
annotate src/share/vm/memory/oopFactory.cpp @ 14517:3812c088b945
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author | lana |
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date | Thu, 06 Mar 2014 10:37:26 -0800 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 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_interface/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" | |
0 | 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 | |
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49 typeArrayOop oopFactory::new_tenured_charArray(int length, TRAPS) { |
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50 return TypeArrayKlass::cast(Universe::charArrayKlassObj())->allocate(length, THREAD); |
0 | 51 } |
52 | |
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53 typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) { |
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54 Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); |
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55 TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); |
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56 typeArrayOop result = type_asArrayKlass->allocate(length, THREAD); |
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57 return result; |
0 | 58 } |
59 | |
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60 // Create a Java array that points to metadata. |
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61 // As far as Java code is concerned, a metaData array is either an array of |
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62 // int or long depending on pointer size. Only a few things use this, like |
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63 // stack trace elements in Throwable. They cast Method* into this type. |
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64 // Note:can't point to symbols because there's no way to unreference count |
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65 // them when this object goes away. |
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66 typeArrayOop oopFactory::new_metaDataArray(int length, TRAPS) { |
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67 BasicType type = LP64_ONLY(T_LONG) NOT_LP64(T_INT); |
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68 Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); |
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69 TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); |
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70 typeArrayOop result = type_asArrayKlass->allocate_common(length, true, THREAD); |
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71 return result; |
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72 } |
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73 |
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74 typeArrayOop oopFactory::new_typeArray_nozero(BasicType type, int length, TRAPS) { |
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75 Klass* type_asKlassOop = Universe::typeArrayKlassObj(type); |
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76 TypeArrayKlass* type_asArrayKlass = TypeArrayKlass::cast(type_asKlassOop); |
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77 typeArrayOop result = type_asArrayKlass->allocate_common(length, false, THREAD); |
0 | 78 return result; |
79 } | |
80 | |
81 | |
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82 objArrayOop oopFactory::new_objArray(Klass* klass, int length, TRAPS) { |
0 | 83 assert(klass->is_klass(), "must be instance class"); |
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84 if (klass->oop_is_array()) { |
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85 return ((ArrayKlass*)klass)->allocate_arrayArray(1, length, THREAD); |
0 | 86 } else { |
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87 assert (klass->oop_is_instance(), "new object array with klass not an InstanceKlass"); |
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88 return ((InstanceKlass*)klass)->allocate_objArray(1, length, THREAD); |
0 | 89 } |
90 } |