Mercurial > hg > truffle
annotate src/share/vm/prims/jvmtiEnvThreadState.hpp @ 12355:cefad50507d8
Merge with hs25-b53
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Fri, 11 Oct 2013 10:38:03 +0200 |
| parents | da91efe96a93 |
| children |
| rev | line source |
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| 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 */ | |
| 1972 | 24 |
| 25 #ifndef SHARE_VM_PRIMS_JVMTIENVTHREADSTATE_HPP | |
| 26 #define SHARE_VM_PRIMS_JVMTIENVTHREADSTATE_HPP | |
| 27 | |
| 28 #include "jvmtifiles/jvmti.h" | |
| 29 #include "memory/allocation.hpp" | |
| 30 #include "memory/allocation.inline.hpp" | |
| 31 #include "oops/instanceKlass.hpp" | |
| 32 #include "prims/jvmtiEventController.hpp" | |
| 33 #include "utilities/globalDefinitions.hpp" | |
| 34 #include "utilities/growableArray.hpp" | |
| 0 | 35 |
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36 class JvmtiEnv; |
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37 |
| 0 | 38 /////////////////////////////////////////////////////////////// |
| 39 // | |
| 40 // class JvmtiFramePop | |
| 41 // Used by : JvmtiFramePops | |
| 42 // Used by JVMTI methods: none directly. | |
| 43 // | |
| 44 // Wrapper class for FramePop, used in the JvmtiFramePops class. | |
| 45 // | |
| 46 // Two problems: 1) this isn't being used as a ValueObj class, in | |
| 47 // several places there are constructors for it. 2) It seems like | |
| 48 // overkill as a means to get an assert and name the geater than | |
| 49 // operator. I'm trying to to rewrite everything. | |
| 50 | |
| 51 class JvmtiFramePop VALUE_OBJ_CLASS_SPEC { | |
| 52 private: | |
| 53 // Frame number counting from BOTTOM (oldest) frame; | |
| 54 // bottom frame == #0 | |
| 55 int _frame_number; | |
| 56 public: | |
| 57 JvmtiFramePop() {} | |
| 58 JvmtiFramePop(int frame_number) { | |
| 59 assert(frame_number >= 0, "invalid frame number"); | |
| 60 _frame_number = frame_number; | |
| 61 } | |
| 62 | |
| 63 int frame_number() { return _frame_number; } | |
| 64 int above_on_stack(JvmtiFramePop& other) { return _frame_number > other._frame_number; } | |
| 65 void print() PRODUCT_RETURN; | |
| 66 }; | |
| 67 | |
| 68 | |
| 69 /////////////////////////////////////////////////////////////// | |
| 70 // | |
| 71 // class JvmtiFramePops | |
| 72 // Used by : JvmtiThreadState | |
| 73 // Used by JVMTI methods: none directly. | |
| 74 // | |
| 75 // A collection of JvmtiFramePop. | |
| 76 // It records what frames on a threads stack should post frame_pop events when they're exited. | |
| 77 // | |
| 78 | |
| 6197 | 79 class JvmtiFramePops : public CHeapObj<mtInternal> { |
| 0 | 80 private: |
| 81 GrowableArray<int>* _pops; | |
| 82 | |
| 83 // should only be used by JvmtiEventControllerPrivate | |
| 84 // to insure they only occur at safepoints. | |
| 85 // Todo: add checks for safepoint | |
| 86 friend class JvmtiEventControllerPrivate; | |
| 87 void set(JvmtiFramePop& fp); | |
| 88 void clear(JvmtiFramePop& fp); | |
| 89 int clear_to(JvmtiFramePop& fp); | |
| 90 | |
| 91 public: | |
| 92 JvmtiFramePops(); | |
| 93 ~JvmtiFramePops(); | |
| 94 | |
| 95 bool contains(JvmtiFramePop& fp) { return _pops->contains(fp.frame_number()); } | |
| 96 int length() { return _pops->length(); } | |
| 97 void print() PRODUCT_RETURN; | |
| 98 }; | |
| 99 | |
| 100 | |
| 101 /////////////////////////////////////////////////////////////// | |
| 102 // | |
| 103 // class JvmtiEnvThreadState | |
| 104 // | |
| 105 // 2. Cache of pending frame_pop_events, created by NotifyFramePop | |
| 106 // and lazily initialized. | |
| 107 // 3: Location of last executed instruction, used to filter out duplicate | |
| 108 // events due to instruction rewriting. | |
| 109 | |
| 6197 | 110 class JvmtiEnvThreadState : public CHeapObj<mtInternal> { |
| 0 | 111 private: |
| 112 friend class JvmtiEnv; | |
| 113 JavaThread *_thread; | |
| 114 JvmtiEnv *_env; | |
| 115 JvmtiEnvThreadState *_next; | |
| 116 jmethodID _current_method_id; | |
| 117 int _current_bci; | |
| 118 bool _breakpoint_posted; | |
| 119 bool _single_stepping_posted; | |
| 120 JvmtiEnvThreadEventEnable _event_enable; | |
| 121 void *_agent_thread_local_storage_data; // per env and per thread agent allocated data. | |
| 122 | |
| 123 // Class used to store pending framepops. | |
| 124 // lazily initialized by get_frame_pops(); | |
| 125 JvmtiFramePops *_frame_pops; | |
| 126 | |
| 127 inline void set_current_location(jmethodID method_id, int bci) { | |
| 128 _current_method_id = method_id; | |
| 129 _current_bci = bci; | |
| 130 } | |
| 131 | |
| 132 friend class JvmtiEnvThreadStateIterator; | |
| 133 JvmtiEnvThreadState* next() { return _next; } | |
| 134 | |
| 135 friend class JvmtiThreadState; | |
| 136 void set_next(JvmtiEnvThreadState* link) { _next = link; } | |
| 137 | |
| 138 public: | |
| 139 JvmtiEnvThreadState(JavaThread *thread, JvmtiEnvBase *env); | |
| 140 ~JvmtiEnvThreadState(); | |
| 141 | |
| 142 bool is_enabled(jvmtiEvent event_type) { return _event_enable.is_enabled(event_type); } | |
| 143 | |
| 144 JvmtiEnvThreadEventEnable *event_enable() { return &_event_enable; } | |
| 145 void *get_agent_thread_local_storage_data() { return _agent_thread_local_storage_data; } | |
| 146 void set_agent_thread_local_storage_data (void *data) { _agent_thread_local_storage_data = data; } | |
| 147 | |
| 148 | |
| 149 // If the thread is in the given method at the given | |
| 150 // location just return. Otherwise, reset the current location | |
| 151 // and reset _breakpoint_posted and _single_stepping_posted. | |
| 152 // _breakpoint_posted and _single_stepping_posted are only cleared | |
| 153 // here. | |
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154 void compare_and_set_current_location(Method* method, address location, jvmtiEvent event); |
| 0 | 155 |
| 156 void clear_current_location() { set_current_location((jmethodID)NULL, 0); } | |
| 157 | |
| 158 void reset_current_location(jvmtiEvent event, bool enabled); | |
| 159 | |
| 160 inline void set_breakpoint_posted() { _breakpoint_posted = true; } | |
| 161 inline void set_single_stepping_posted() { | |
| 162 _single_stepping_posted = true; | |
| 163 } | |
| 164 inline bool breakpoint_posted() { return _breakpoint_posted; } | |
| 165 inline bool single_stepping_posted() { | |
| 166 return _single_stepping_posted; | |
| 167 } | |
| 168 | |
| 169 inline JavaThread *get_thread() { return _thread; } | |
| 170 inline JvmtiEnv *get_env() { return _env; } | |
| 171 | |
| 172 // lazily initialize _frame_pops | |
| 173 JvmtiFramePops* get_frame_pops(); | |
| 174 | |
| 175 bool has_frame_pops(); | |
| 176 | |
| 177 // quickly test whether we should deliver a frame pop event on return from sp | |
| 178 bool is_frame_pop(int cur_stack_depth); | |
| 179 | |
| 180 void set_frame_pop(int frame_number); | |
| 181 void clear_frame_pop(int frame_number); | |
| 182 void clear_to_frame_pop(int frame_number); | |
| 183 | |
| 184 }; | |
| 185 | |
| 1972 | 186 #endif // SHARE_VM_PRIMS_JVMTIENVTHREADSTATE_HPP |