Mercurial > hg > truffle
comparison src/share/vm/oops/instanceKlass.cpp @ 14521:29ccc4cbabca
Merge
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Wed, 12 Mar 2014 13:30:08 +0100 |
parents | d8041d695d19 |
children | 8762b6b8fbb6 |
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14520:f84115370178 | 14521:29ccc4cbabca |
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1 /* | 1 /* |
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 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 | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
47 #include "oops/oop.inline.hpp" | 47 #include "oops/oop.inline.hpp" |
48 #include "oops/symbol.hpp" | 48 #include "oops/symbol.hpp" |
49 #include "prims/jvmtiExport.hpp" | 49 #include "prims/jvmtiExport.hpp" |
50 #include "prims/jvmtiRedefineClassesTrace.hpp" | 50 #include "prims/jvmtiRedefineClassesTrace.hpp" |
51 #include "prims/jvmtiRedefineClasses.hpp" | 51 #include "prims/jvmtiRedefineClasses.hpp" |
52 #include "prims/jvmtiThreadState.hpp" | |
52 #include "prims/methodComparator.hpp" | 53 #include "prims/methodComparator.hpp" |
53 #include "runtime/fieldDescriptor.hpp" | 54 #include "runtime/fieldDescriptor.hpp" |
54 #include "runtime/handles.inline.hpp" | 55 #include "runtime/handles.inline.hpp" |
55 #include "runtime/javaCalls.hpp" | 56 #include "runtime/javaCalls.hpp" |
56 #include "runtime/mutexLocker.hpp" | 57 #include "runtime/mutexLocker.hpp" |
75 #include "c1/c1_Compiler.hpp" | 76 #include "c1/c1_Compiler.hpp" |
76 #endif | 77 #endif |
77 | 78 |
78 #ifdef DTRACE_ENABLED | 79 #ifdef DTRACE_ENABLED |
79 | 80 |
80 #ifndef USDT2 | |
81 | |
82 HS_DTRACE_PROBE_DECL4(hotspot, class__initialization__required, | |
83 char*, intptr_t, oop, intptr_t); | |
84 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__recursive, | |
85 char*, intptr_t, oop, intptr_t, int); | |
86 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__concurrent, | |
87 char*, intptr_t, oop, intptr_t, int); | |
88 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__erroneous, | |
89 char*, intptr_t, oop, intptr_t, int); | |
90 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__super__failed, | |
91 char*, intptr_t, oop, intptr_t, int); | |
92 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__clinit, | |
93 char*, intptr_t, oop, intptr_t, int); | |
94 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__error, | |
95 char*, intptr_t, oop, intptr_t, int); | |
96 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__end, | |
97 char*, intptr_t, oop, intptr_t, int); | |
98 | |
99 #define DTRACE_CLASSINIT_PROBE(type, clss, thread_type) \ | |
100 { \ | |
101 char* data = NULL; \ | |
102 int len = 0; \ | |
103 Symbol* name = (clss)->name(); \ | |
104 if (name != NULL) { \ | |
105 data = (char*)name->bytes(); \ | |
106 len = name->utf8_length(); \ | |
107 } \ | |
108 HS_DTRACE_PROBE4(hotspot, class__initialization__##type, \ | |
109 data, len, SOLARIS_ONLY((void *))(clss)->class_loader(), thread_type); \ | |
110 } | |
111 | |
112 #define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait) \ | |
113 { \ | |
114 char* data = NULL; \ | |
115 int len = 0; \ | |
116 Symbol* name = (clss)->name(); \ | |
117 if (name != NULL) { \ | |
118 data = (char*)name->bytes(); \ | |
119 len = name->utf8_length(); \ | |
120 } \ | |
121 HS_DTRACE_PROBE5(hotspot, class__initialization__##type, \ | |
122 data, len, SOLARIS_ONLY((void *))(clss)->class_loader(), thread_type, wait); \ | |
123 } | |
124 #else /* USDT2 */ | |
125 | 81 |
126 #define HOTSPOT_CLASS_INITIALIZATION_required HOTSPOT_CLASS_INITIALIZATION_REQUIRED | 82 #define HOTSPOT_CLASS_INITIALIZATION_required HOTSPOT_CLASS_INITIALIZATION_REQUIRED |
127 #define HOTSPOT_CLASS_INITIALIZATION_recursive HOTSPOT_CLASS_INITIALIZATION_RECURSIVE | 83 #define HOTSPOT_CLASS_INITIALIZATION_recursive HOTSPOT_CLASS_INITIALIZATION_RECURSIVE |
128 #define HOTSPOT_CLASS_INITIALIZATION_concurrent HOTSPOT_CLASS_INITIALIZATION_CONCURRENT | 84 #define HOTSPOT_CLASS_INITIALIZATION_concurrent HOTSPOT_CLASS_INITIALIZATION_CONCURRENT |
129 #define HOTSPOT_CLASS_INITIALIZATION_erroneous HOTSPOT_CLASS_INITIALIZATION_ERRONEOUS | 85 #define HOTSPOT_CLASS_INITIALIZATION_erroneous HOTSPOT_CLASS_INITIALIZATION_ERRONEOUS |
154 len = name->utf8_length(); \ | 110 len = name->utf8_length(); \ |
155 } \ | 111 } \ |
156 HOTSPOT_CLASS_INITIALIZATION_##type( \ | 112 HOTSPOT_CLASS_INITIALIZATION_##type( \ |
157 data, len, (clss)->class_loader(), thread_type, wait); \ | 113 data, len, (clss)->class_loader(), thread_type, wait); \ |
158 } | 114 } |
159 #endif /* USDT2 */ | |
160 | 115 |
161 #else // ndef DTRACE_ENABLED | 116 #else // ndef DTRACE_ENABLED |
162 | 117 |
163 #define DTRACE_CLASSINIT_PROBE(type, clss, thread_type) | 118 #define DTRACE_CLASSINIT_PROBE(type, clss, thread_type) |
164 #define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait) | 119 #define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait) |
906 } | 861 } |
907 else { | 862 else { |
908 // Step 10 and 11 | 863 // Step 10 and 11 |
909 Handle e(THREAD, PENDING_EXCEPTION); | 864 Handle e(THREAD, PENDING_EXCEPTION); |
910 CLEAR_PENDING_EXCEPTION; | 865 CLEAR_PENDING_EXCEPTION; |
866 // JVMTI has already reported the pending exception | |
867 // JVMTI internal flag reset is needed in order to report ExceptionInInitializerError | |
868 JvmtiExport::clear_detected_exception((JavaThread*)THREAD); | |
911 { | 869 { |
912 EXCEPTION_MARK; | 870 EXCEPTION_MARK; |
913 this_oop->set_initialization_state_and_notify(initialization_error, THREAD); | 871 this_oop->set_initialization_state_and_notify(initialization_error, THREAD); |
914 CLEAR_PENDING_EXCEPTION; // ignore any exception thrown, class initialization error is thrown below | 872 CLEAR_PENDING_EXCEPTION; // ignore any exception thrown, class initialization error is thrown below |
873 // JVMTI has already reported the pending exception | |
874 // JVMTI internal flag reset is needed in order to report ExceptionInInitializerError | |
875 JvmtiExport::clear_detected_exception((JavaThread*)THREAD); | |
915 } | 876 } |
916 DTRACE_CLASSINIT_PROBE_WAIT(error, InstanceKlass::cast(this_oop()), -1,wait); | 877 DTRACE_CLASSINIT_PROBE_WAIT(error, InstanceKlass::cast(this_oop()), -1,wait); |
917 if (e->is_a(SystemDictionary::Error_klass())) { | 878 if (e->is_a(SystemDictionary::Error_klass())) { |
918 THROW_OOP(e()); | 879 THROW_OOP(e()); |
919 } else { | 880 } else { |
1201 if (_oop_map_cache == NULL) { | 1162 if (_oop_map_cache == NULL) { |
1202 // Otherwise, allocate a new one. | 1163 // Otherwise, allocate a new one. |
1203 MutexLocker x(OopMapCacheAlloc_lock); | 1164 MutexLocker x(OopMapCacheAlloc_lock); |
1204 // First time use. Allocate a cache in C heap | 1165 // First time use. Allocate a cache in C heap |
1205 if (_oop_map_cache == NULL) { | 1166 if (_oop_map_cache == NULL) { |
1206 _oop_map_cache = new OopMapCache(); | 1167 // Release stores from OopMapCache constructor before assignment |
1168 // to _oop_map_cache. C++ compilers on ppc do not emit the | |
1169 // required memory barrier only because of the volatile | |
1170 // qualifier of _oop_map_cache. | |
1171 OrderAccess::release_store_ptr(&_oop_map_cache, new OopMapCache()); | |
1207 } | 1172 } |
1208 } | 1173 } |
1209 // _oop_map_cache is constant after init; lookup below does is own locking. | 1174 // _oop_map_cache is constant after init; lookup below does is own locking. |
1210 _oop_map_cache->lookup(method, bci, entry_for); | 1175 _oop_map_cache->lookup(method, bci, entry_for); |
1211 } | 1176 } |
1496 return start; | 1461 return start; |
1497 } | 1462 } |
1498 return -1; | 1463 return -1; |
1499 } | 1464 } |
1500 | 1465 |
1501 // lookup_method searches both the local methods array and all superclasses methods arrays | 1466 // uncached_lookup_method searches both the local class methods array and all |
1467 // superclasses methods arrays, skipping any overpass methods in superclasses. | |
1502 Method* InstanceKlass::uncached_lookup_method(Symbol* name, Symbol* signature) const { | 1468 Method* InstanceKlass::uncached_lookup_method(Symbol* name, Symbol* signature) const { |
1503 Klass* klass = const_cast<InstanceKlass*>(this); | 1469 Klass* klass = const_cast<InstanceKlass*>(this); |
1470 bool dont_ignore_overpasses = true; // For the class being searched, find its overpasses. | |
1504 while (klass != NULL) { | 1471 while (klass != NULL) { |
1505 Method* method = InstanceKlass::cast(klass)->find_method(name, signature); | 1472 Method* method = InstanceKlass::cast(klass)->find_method(name, signature); |
1506 if (method != NULL) return method; | 1473 if ((method != NULL) && (dont_ignore_overpasses || !method->is_overpass())) { |
1474 return method; | |
1475 } | |
1507 klass = InstanceKlass::cast(klass)->super(); | 1476 klass = InstanceKlass::cast(klass)->super(); |
1477 dont_ignore_overpasses = false; // Ignore overpass methods in all superclasses. | |
1508 } | 1478 } |
1509 return NULL; | 1479 return NULL; |
1510 } | 1480 } |
1511 | 1481 |
1512 // lookup a method in the default methods list then in all transitive interfaces | 1482 // lookup a method in the default methods list then in all transitive interfaces |
1517 if (default_methods() != NULL) { | 1487 if (default_methods() != NULL) { |
1518 m = find_method(default_methods(), name, signature); | 1488 m = find_method(default_methods(), name, signature); |
1519 } | 1489 } |
1520 // Look up interfaces | 1490 // Look up interfaces |
1521 if (m == NULL) { | 1491 if (m == NULL) { |
1522 m = lookup_method_in_all_interfaces(name, signature); | 1492 m = lookup_method_in_all_interfaces(name, signature, false); |
1523 } | 1493 } |
1524 return m; | 1494 return m; |
1525 } | 1495 } |
1526 | 1496 |
1527 // lookup a method in all the interfaces that this class implements | 1497 // lookup a method in all the interfaces that this class implements |
1528 // Do NOT return private or static methods, new in JDK8 which are not externally visible | 1498 // Do NOT return private or static methods, new in JDK8 which are not externally visible |
1529 // They should only be found in the initial InterfaceMethodRef | 1499 // They should only be found in the initial InterfaceMethodRef |
1530 Method* InstanceKlass::lookup_method_in_all_interfaces(Symbol* name, | 1500 Method* InstanceKlass::lookup_method_in_all_interfaces(Symbol* name, |
1531 Symbol* signature) const { | 1501 Symbol* signature, |
1502 bool skip_default_methods) const { | |
1532 Array<Klass*>* all_ifs = transitive_interfaces(); | 1503 Array<Klass*>* all_ifs = transitive_interfaces(); |
1533 int num_ifs = all_ifs->length(); | 1504 int num_ifs = all_ifs->length(); |
1534 InstanceKlass *ik = NULL; | 1505 InstanceKlass *ik = NULL; |
1535 for (int i = 0; i < num_ifs; i++) { | 1506 for (int i = 0; i < num_ifs; i++) { |
1536 ik = InstanceKlass::cast(all_ifs->at(i)); | 1507 ik = InstanceKlass::cast(all_ifs->at(i)); |
1537 Method* m = ik->lookup_method(name, signature); | 1508 Method* m = ik->lookup_method(name, signature); |
1538 if (m != NULL && m->is_public() && !m->is_static()) { | 1509 if (m != NULL && m->is_public() && !m->is_static() && |
1510 (!skip_default_methods || !m->is_default_method())) { | |
1539 return m; | 1511 return m; |
1540 } | 1512 } |
1541 } | 1513 } |
1542 return NULL; | 1514 return NULL; |
1543 } | 1515 } |
2225 | 2197 |
2226 void InstanceKlass::clean_method_data(BoolObjectClosure* is_alive) { | 2198 void InstanceKlass::clean_method_data(BoolObjectClosure* is_alive) { |
2227 for (int m = 0; m < methods()->length(); m++) { | 2199 for (int m = 0; m < methods()->length(); m++) { |
2228 MethodData* mdo = methods()->at(m)->method_data(); | 2200 MethodData* mdo = methods()->at(m)->method_data(); |
2229 if (mdo != NULL) { | 2201 if (mdo != NULL) { |
2230 for (ProfileData* data = mdo->first_data(); | 2202 mdo->clean_method_data(is_alive); |
2231 mdo->is_valid(data); | |
2232 data = mdo->next_data(data)) { | |
2233 data->clean_weak_klass_links(is_alive); | |
2234 } | |
2235 ParametersTypeData* parameters = mdo->parameters_type_data(); | |
2236 if (parameters != NULL) { | |
2237 parameters->clean_weak_klass_links(is_alive); | |
2238 } | |
2239 } | 2203 } |
2240 } | 2204 } |
2241 } | 2205 } |
2242 | 2206 |
2243 | 2207 |
2752 nmethod* cur = osr_nmethods_head(); | 2716 nmethod* cur = osr_nmethods_head(); |
2753 int max_level = CompLevel_none; // Find the max comp level excluding n | 2717 int max_level = CompLevel_none; // Find the max comp level excluding n |
2754 Method* m = n->method(); | 2718 Method* m = n->method(); |
2755 // Search for match | 2719 // Search for match |
2756 while(cur != NULL && cur != n) { | 2720 while(cur != NULL && cur != n) { |
2757 if (TieredCompilation) { | 2721 if (TieredCompilation && m == cur->method()) { |
2758 // Find max level before n | 2722 // Find max level before n |
2759 max_level = MAX2(max_level, cur->comp_level()); | 2723 max_level = MAX2(max_level, cur->comp_level()); |
2760 } | 2724 } |
2761 last = cur; | 2725 last = cur; |
2762 cur = cur->osr_link(); | 2726 cur = cur->osr_link(); |
2774 n->set_osr_link(NULL); | 2738 n->set_osr_link(NULL); |
2775 if (TieredCompilation) { | 2739 if (TieredCompilation) { |
2776 cur = next; | 2740 cur = next; |
2777 while (cur != NULL) { | 2741 while (cur != NULL) { |
2778 // Find max level after n | 2742 // Find max level after n |
2779 max_level = MAX2(max_level, cur->comp_level()); | 2743 if (m == cur->method()) { |
2744 max_level = MAX2(max_level, cur->comp_level()); | |
2745 } | |
2780 cur = cur->osr_link(); | 2746 cur = cur->osr_link(); |
2781 } | 2747 } |
2782 m->set_highest_osr_comp_level(max_level); | 2748 m->set_highest_osr_comp_level(max_level); |
2783 } | 2749 } |
2784 // Remember to unlock again | 2750 // Remember to unlock again |
3020 juint length = java_lang_String::length(obj); | 2986 juint length = java_lang_String::length(obj); |
3021 if (value->is_typeArray() && | 2987 if (value->is_typeArray() && |
3022 offset <= (juint) value->length() && | 2988 offset <= (juint) value->length() && |
3023 offset + length <= (juint) value->length()) { | 2989 offset + length <= (juint) value->length()) { |
3024 st->print(BULLET"string: "); | 2990 st->print(BULLET"string: "); |
3025 Handle h_obj(obj); | 2991 java_lang_String::print(obj, st); |
3026 java_lang_String::print(h_obj, st); | |
3027 st->cr(); | 2992 st->cr(); |
3028 if (!WizardMode) return; // that is enough | 2993 if (!WizardMode) return; // that is enough |
3029 } | 2994 } |
3030 } | 2995 } |
3031 } | 2996 } |
3172 public: | 3137 public: |
3173 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); } | 3138 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); } |
3174 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); } | 3139 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); } |
3175 }; | 3140 }; |
3176 | 3141 |
3177 void InstanceKlass::verify_on(outputStream* st, bool check_dictionary) { | 3142 void InstanceKlass::verify_on(outputStream* st) { |
3178 #ifndef PRODUCT | 3143 #ifndef PRODUCT |
3179 // Avoid redundant verifies, this really should be in product. | 3144 // Avoid redundant verifies, this really should be in product. |
3180 if (_verify_count == Universe::verify_count()) return; | 3145 if (_verify_count == Universe::verify_count()) return; |
3181 _verify_count = Universe::verify_count(); | 3146 _verify_count = Universe::verify_count(); |
3182 #endif | 3147 #endif |
3183 | 3148 |
3184 // Verify Klass | 3149 // Verify Klass |
3185 Klass::verify_on(st, check_dictionary); | 3150 Klass::verify_on(st); |
3186 | 3151 |
3187 // Verify that klass is present in SystemDictionary if not already | 3152 // Verify that klass is present in ClassLoaderData |
3188 // verifying the SystemDictionary. | 3153 guarantee(class_loader_data()->contains_klass(this), |
3189 if (is_loaded() && !is_anonymous() && check_dictionary) { | 3154 "this class isn't found in class loader data"); |
3190 Symbol* h_name = name(); | |
3191 SystemDictionary::verify_obj_klass_present(h_name, class_loader_data()); | |
3192 } | |
3193 | 3155 |
3194 // Verify vtables | 3156 // Verify vtables |
3195 if (is_linked()) { | 3157 if (is_linked()) { |
3196 ResourceMark rm; | 3158 ResourceMark rm; |
3197 // $$$ This used to be done only for m/s collections. Doing it | 3159 // $$$ This used to be done only for m/s collections. Doing it |