Mercurial > hg > truffle
annotate src/share/vm/prims/jvmtiTagMap.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 | 9855b7e559ae |
| children | 8b46b0196eb0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 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 | |
| 25 // JvmtiTagMap | |
| 26 | |
| 1972 | 27 #ifndef SHARE_VM_PRIMS_JVMTITAGMAP_HPP |
| 28 #define SHARE_VM_PRIMS_JVMTITAGMAP_HPP | |
| 29 | |
| 30 #ifndef JVMTI_KERNEL | |
| 31 #include "gc_interface/collectedHeap.hpp" | |
| 32 #include "jvmtifiles/jvmti.h" | |
| 33 #include "jvmtifiles/jvmtiEnv.hpp" | |
| 34 #include "memory/allocation.hpp" | |
| 35 #include "memory/genCollectedHeap.hpp" | |
| 36 #include "memory/universe.hpp" | |
| 37 #endif | |
| 0 | 38 |
| 39 // forward references | |
| 40 class JvmtiTagHashmap; | |
| 41 class JvmtiTagHashmapEntry; | |
| 42 class JvmtiTagHashmapEntryClosure; | |
| 43 | |
| 6197 | 44 class JvmtiTagMap : public CHeapObj<mtInternal> { |
| 0 | 45 private: |
| 46 | |
| 47 enum{ | |
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48 max_free_entries = 4096 // maximum number of free entries per env |
| 0 | 49 }; |
| 50 | |
| 51 JvmtiEnv* _env; // the jvmti environment | |
| 52 Mutex _lock; // lock for this tag map | |
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53 JvmtiTagHashmap* _hashmap; // the hashmap |
| 0 | 54 |
| 55 JvmtiTagHashmapEntry* _free_entries; // free list for this environment | |
| 56 int _free_entries_count; // number of entries on the free list | |
| 57 | |
| 58 // create a tag map | |
| 59 JvmtiTagMap(JvmtiEnv* env); | |
| 60 | |
| 61 // accessors | |
| 62 inline Mutex* lock() { return &_lock; } | |
| 63 inline JvmtiEnv* env() const { return _env; } | |
| 64 | |
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65 void do_weak_oops(BoolObjectClosure* is_alive, OopClosure* f); |
| 0 | 66 |
| 67 // iterate over all entries in this tag map | |
| 68 void entry_iterate(JvmtiTagHashmapEntryClosure* closure); | |
| 69 | |
| 70 public: | |
| 71 | |
| 72 // indicates if this tag map is locked | |
| 73 bool is_locked() { return lock()->is_locked(); } | |
| 74 | |
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75 JvmtiTagHashmap* hashmap() { return _hashmap; } |
| 0 | 76 |
| 77 // create/destroy entries | |
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78 JvmtiTagHashmapEntry* create_entry(oop ref, jlong tag); |
| 0 | 79 void destroy_entry(JvmtiTagHashmapEntry* entry); |
| 80 | |
| 81 // returns true if the hashmaps are empty | |
| 82 bool is_empty(); | |
| 83 | |
| 84 // return tag for the given environment | |
| 85 static JvmtiTagMap* tag_map_for(JvmtiEnv* env); | |
| 86 | |
| 87 // destroy tag map | |
| 88 ~JvmtiTagMap(); | |
| 89 | |
| 90 // set/get tag | |
| 91 void set_tag(jobject obj, jlong tag); | |
| 92 jlong get_tag(jobject obj); | |
| 93 | |
| 94 // deprecated heap iteration functions | |
| 95 void iterate_over_heap(jvmtiHeapObjectFilter object_filter, | |
| 96 KlassHandle klass, | |
| 97 jvmtiHeapObjectCallback heap_object_callback, | |
| 98 const void* user_data); | |
| 99 | |
| 100 void iterate_over_reachable_objects(jvmtiHeapRootCallback heap_root_callback, | |
| 101 jvmtiStackReferenceCallback stack_ref_callback, | |
| 102 jvmtiObjectReferenceCallback object_ref_callback, | |
| 103 const void* user_data); | |
| 104 | |
| 105 void iterate_over_objects_reachable_from_object(jobject object, | |
| 106 jvmtiObjectReferenceCallback object_reference_callback, | |
| 107 const void* user_data); | |
| 108 | |
| 109 | |
| 110 // advanced (JVMTI 1.1) heap iteration functions | |
| 111 void iterate_through_heap(jint heap_filter, | |
| 112 KlassHandle klass, | |
| 113 const jvmtiHeapCallbacks* callbacks, | |
| 114 const void* user_data); | |
| 115 | |
| 116 void follow_references(jint heap_filter, | |
| 117 KlassHandle klass, | |
| 118 jobject initial_object, | |
| 119 const jvmtiHeapCallbacks* callbacks, | |
| 120 const void* user_data); | |
| 121 | |
| 122 // get tagged objects | |
| 123 jvmtiError get_objects_with_tags(const jlong* tags, jint count, | |
| 124 jint* count_ptr, jobject** object_result_ptr, | |
| 125 jlong** tag_result_ptr); | |
| 126 | |
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127 static void weak_oops_do( |
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128 BoolObjectClosure* is_alive, OopClosure* f) NOT_JVMTI_RETURN; |
| 0 | 129 }; |
| 130 | |
| 1972 | 131 #endif // SHARE_VM_PRIMS_JVMTITAGMAP_HPP |