Mercurial > hg > truffle
annotate src/share/vm/ci/ciObjectFactory.hpp @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Mon, 12 Nov 2012 14:03:53 -0800 |
| parents | da91efe96a93 |
| children | 2cb439954abf f98f5d48f511 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 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 #ifndef SHARE_VM_CI_CIOBJECTFACTORY_HPP |
| 26 #define SHARE_VM_CI_CIOBJECTFACTORY_HPP | |
| 27 | |
| 28 #include "ci/ciClassList.hpp" | |
| 29 #include "ci/ciObject.hpp" | |
| 30 #include "utilities/growableArray.hpp" | |
| 31 | |
| 0 | 32 // ciObjectFactory |
| 33 // | |
| 34 // This class handles requests for the creation of new instances | |
| 35 // of ciObject and its subclasses. It contains a caching mechanism | |
| 36 // which ensures that for each oop, at most one ciObject is created. | |
| 37 // This invariant allows efficient implementation of ciObject. | |
| 38 class ciObjectFactory : public ResourceObj { | |
| 3939 | 39 friend class VMStructs; |
| 40 friend class ciEnv; | |
| 41 | |
| 0 | 42 private: |
| 43 static volatile bool _initialized; | |
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44 static GrowableArray<ciMetadata*>* _shared_ci_metadata; |
| 0 | 45 static ciSymbol* _shared_ci_symbols[]; |
| 46 static int _shared_ident_limit; | |
| 47 | |
| 48 Arena* _arena; | |
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49 GrowableArray<ciMetadata*>* _ci_metadata; |
| 0 | 50 GrowableArray<ciMethod*>* _unloaded_methods; |
| 51 GrowableArray<ciKlass*>* _unloaded_klasses; | |
| 1602 | 52 GrowableArray<ciInstance*>* _unloaded_instances; |
| 0 | 53 GrowableArray<ciReturnAddress*>* _return_addresses; |
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54 GrowableArray<ciSymbol*>* _symbols; // keep list of symbols created |
| 0 | 55 int _next_ident; |
| 56 | |
| 57 public: | |
| 58 struct NonPermObject : public ResourceObj { | |
| 59 ciObject* _object; | |
| 60 NonPermObject* _next; | |
| 61 | |
| 62 inline NonPermObject(NonPermObject* &bucket, oop key, ciObject* object); | |
| 63 ciObject* object() { return _object; } | |
| 64 NonPermObject* &next() { return _next; } | |
| 65 }; | |
| 66 private: | |
| 67 enum { NON_PERM_BUCKETS = 61 }; | |
| 68 NonPermObject* _non_perm_bucket[NON_PERM_BUCKETS]; | |
| 69 int _non_perm_count; | |
| 70 | |
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71 int find(Metadata* key, GrowableArray<ciMetadata*>* objects); |
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72 bool is_found_at(int index, Metadata* key, GrowableArray<ciMetadata*>* objects); |
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73 void insert(int index, ciMetadata* obj, GrowableArray<ciMetadata*>* objects); |
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74 |
| 0 | 75 ciObject* create_new_object(oop o); |
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76 ciMetadata* create_new_object(Metadata* o); |
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77 |
| 0 | 78 static bool is_equal(NonPermObject* p, oop key) { |
| 79 return p->object()->get_oop() == key; | |
| 80 } | |
| 81 | |
| 82 NonPermObject* &find_non_perm(oop key); | |
| 83 void insert_non_perm(NonPermObject* &where, oop key, ciObject* obj); | |
| 84 | |
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85 void init_ident_of(ciBaseObject* obj); |
| 0 | 86 |
| 87 Arena* arena() { return _arena; } | |
| 88 | |
| 89 void print_contents_impl(); | |
| 90 | |
| 1602 | 91 ciInstance* get_unloaded_instance(ciInstanceKlass* klass); |
| 92 | |
| 0 | 93 public: |
| 94 static bool is_initialized() { return _initialized; } | |
| 95 | |
| 96 static void initialize(); | |
| 97 void init_shared_objects(); | |
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98 void remove_symbols(); |
| 0 | 99 |
| 100 ciObjectFactory(Arena* arena, int expected_size); | |
| 101 | |
| 102 // Get the ciObject corresponding to some oop. | |
| 103 ciObject* get(oop key); | |
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104 ciMetadata* get_metadata(Metadata* key); |
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105 ciSymbol* get_symbol(Symbol* key); |
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106 |
| 0 | 107 // Get the ciSymbol corresponding to one of the vmSymbols. |
| 108 static ciSymbol* vm_symbol_at(int index); | |
| 109 | |
| 110 // Get the ciMethod representing an unloaded/unfound method. | |
| 111 ciMethod* get_unloaded_method(ciInstanceKlass* holder, | |
| 112 ciSymbol* name, | |
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113 ciSymbol* signature, |
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114 ciInstanceKlass* accessor); |
| 0 | 115 |
| 116 // Get a ciKlass representing an unloaded klass. | |
| 117 ciKlass* get_unloaded_klass(ciKlass* accessing_klass, | |
| 118 ciSymbol* name, | |
| 119 bool create_if_not_found); | |
| 120 | |
| 1602 | 121 // Get a ciInstance representing an unresolved klass mirror. |
| 122 ciInstance* get_unloaded_klass_mirror(ciKlass* type); | |
| 123 | |
| 124 // Get a ciInstance representing an unresolved method handle constant. | |
| 125 ciInstance* get_unloaded_method_handle_constant(ciKlass* holder, | |
| 126 ciSymbol* name, | |
| 127 ciSymbol* signature, | |
| 128 int ref_kind); | |
| 129 | |
| 130 // Get a ciInstance representing an unresolved method type constant. | |
| 131 ciInstance* get_unloaded_method_type_constant(ciSymbol* signature); | |
| 132 | |
| 0 | 133 |
| 134 // Get the ciMethodData representing the methodData for a method | |
| 135 // with none. | |
| 136 ciMethodData* get_empty_methodData(); | |
| 137 | |
| 138 ciReturnAddress* get_return_address(int bci); | |
| 139 | |
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140 GrowableArray<ciMetadata*>* get_ci_metadata() const { return _ci_metadata; } |
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141 // RedefineClasses support |
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142 void metadata_do(void f(Metadata*)); |
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143 |
| 0 | 144 void print_contents(); |
| 145 void print(); | |
| 146 }; | |
| 1972 | 147 |
| 148 #endif // SHARE_VM_CI_CIOBJECTFACTORY_HPP |