Mercurial > hg > graal-compiler
annotate src/share/vm/memory/oopFactory.hpp @ 3992:d1bdeef3e3e2
7098282: G1: assert(interval >= 0) failed: Sanity check, referencePolicy.cpp: 76
Summary: There is a race between one thread successfully forwarding and copying the klass mirror for the SoftReference class (including the static master clock) and another thread attempting to use the master clock while attempting to discover a soft reference object. Maintain a shadow copy of the soft reference master clock and use the shadow during reference discovery and reference processing.
Reviewed-by: tonyp, brutisso, ysr
| author | johnc |
|---|---|
| date | Wed, 12 Oct 2011 10:25:51 -0700 |
| parents | a92cdbac8b9e |
| children | 49036505ab5f |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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 #ifndef SHARE_VM_MEMORY_OOPFACTORY_HPP |
| 26 #define SHARE_VM_MEMORY_OOPFACTORY_HPP | |
| 27 | |
| 28 #include "classfile/symbolTable.hpp" | |
| 29 #include "classfile/systemDictionary.hpp" | |
| 30 #include "memory/universe.hpp" | |
| 31 #include "oops/klassOop.hpp" | |
| 32 #include "oops/objArrayKlass.hpp" | |
| 33 #include "oops/oop.hpp" | |
| 34 #include "oops/typeArrayKlass.hpp" | |
| 35 #include "utilities/growableArray.hpp" | |
| 36 | |
| 0 | 37 // oopFactory is a class used for creating new objects. |
| 38 | |
| 39 class vframeArray; | |
| 40 | |
| 41 class oopFactory: AllStatic { | |
| 42 public: | |
| 43 // Basic type leaf array allocation | |
| 44 static typeArrayOop new_boolArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::boolArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
| 45 static typeArrayOop new_charArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::charArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
| 46 static typeArrayOop new_singleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::singleArrayKlassObj())->allocate(length, CHECK_NULL); } | |
| 47 static typeArrayOop new_doubleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::doubleArrayKlassObj())->allocate(length, CHECK_NULL); } | |
| 48 static typeArrayOop new_byteArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::byteArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
| 49 static typeArrayOop new_shortArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::shortArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
| 50 static typeArrayOop new_intArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::intArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
| 51 static typeArrayOop new_longArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::longArrayKlassObj ())->allocate(length, CHECK_NULL); } | |
| 52 | |
| 53 // create java.lang.Object[] | |
| 54 static objArrayOop new_objectArray(int length, TRAPS) { | |
| 55 return objArrayKlass:: | |
| 56 cast(Universe::objectArrayKlassObj())->allocate(length, CHECK_NULL); | |
| 57 } | |
| 58 | |
| 59 static typeArrayOop new_charArray (const char* utf8_str, TRAPS); | |
| 60 static typeArrayOop new_permanent_charArray (int length, TRAPS); | |
| 61 static typeArrayOop new_permanent_byteArray (int length, TRAPS); // used for class file structures | |
| 62 static typeArrayOop new_permanent_shortArray(int length, TRAPS); // used for class file structures | |
| 63 static typeArrayOop new_permanent_intArray (int length, TRAPS); // used for class file structures | |
| 64 | |
| 65 static typeArrayOop new_typeArray(BasicType type, int length, TRAPS); | |
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66 static typeArrayOop new_typeArray_nozero(BasicType type, int length, TRAPS); |
| 0 | 67 |
| 68 // Constant pools | |
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69 static constantPoolOop new_constantPool (int length, |
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70 bool is_conc_safe, |
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71 TRAPS); |
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72 static constantPoolCacheOop new_constantPoolCache(int length, |
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73 TRAPS); |
| 0 | 74 |
| 75 // Instance classes | |
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76 static klassOop new_instanceKlass(Symbol* name, |
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77 int vtable_len, int itable_len, |
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78 int static_field_size, |
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79 unsigned int nonstatic_oop_map_count, |
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80 ReferenceType rt, TRAPS); |
| 0 | 81 |
| 82 // Methods | |
| 83 private: | |
| 84 static constMethodOop new_constMethod(int byte_code_size, | |
| 85 int compressed_line_number_size, | |
| 86 int localvariable_table_length, | |
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87 int checked_exceptions_length, |
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88 bool is_conc_safe, |
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89 TRAPS); |
| 0 | 90 public: |
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91 // Set is_conc_safe for methods which cannot safely be |
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92 // processed by concurrent GC even after the return of |
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93 // the method. |
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94 static methodOop new_method(int byte_code_size, |
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95 AccessFlags access_flags, |
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96 int compressed_line_number_size, |
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97 int localvariable_table_length, |
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98 int checked_exceptions_length, |
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99 bool is_conc_safe, |
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100 TRAPS); |
| 0 | 101 |
| 102 // Method Data containers | |
| 103 static methodDataOop new_methodData(methodHandle method, TRAPS); | |
| 104 | |
| 105 // System object arrays | |
| 106 static objArrayOop new_system_objArray(int length, TRAPS); | |
| 107 | |
| 108 // Regular object arrays | |
| 109 static objArrayOop new_objArray(klassOop klass, int length, TRAPS); | |
| 110 | |
| 111 // For compiled ICs | |
| 112 static compiledICHolderOop new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS); | |
| 113 }; | |
| 1972 | 114 |
| 115 #endif // SHARE_VM_MEMORY_OOPFACTORY_HPP |