Fri, 10 Jul 2009 11:10:00 -0700
6857194: Add hotspot perf counters to aid class loading performance measurement
Summary: Add new jvmstat counters to measure detailed class loading time
Reviewed-by: acorn, kamg
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | # include "incls/_precompiled.incl" |
duke@435 | 26 | # include "incls/_jvmtiEventController.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | #ifdef JVMTI_TRACE |
duke@435 | 29 | #define EC_TRACE(out) if (JvmtiTrace::trace_event_controller()) { SafeResourceMark rm; tty->print_cr out; } while (0) |
duke@435 | 30 | #else |
duke@435 | 31 | #define EC_TRACE(out) |
duke@435 | 32 | #endif /*JVMTI_TRACE */ |
duke@435 | 33 | |
duke@435 | 34 | // bits for standard events |
duke@435 | 35 | |
duke@435 | 36 | static const jlong SINGLE_STEP_BIT = (((jlong)1) << (JVMTI_EVENT_SINGLE_STEP - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 37 | static const jlong FRAME_POP_BIT = (((jlong)1) << (JVMTI_EVENT_FRAME_POP - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 38 | static const jlong BREAKPOINT_BIT = (((jlong)1) << (JVMTI_EVENT_BREAKPOINT - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 39 | static const jlong FIELD_ACCESS_BIT = (((jlong)1) << (JVMTI_EVENT_FIELD_ACCESS - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 40 | static const jlong FIELD_MODIFICATION_BIT = (((jlong)1) << (JVMTI_EVENT_FIELD_MODIFICATION - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 41 | static const jlong METHOD_ENTRY_BIT = (((jlong)1) << (JVMTI_EVENT_METHOD_ENTRY - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 42 | static const jlong METHOD_EXIT_BIT = (((jlong)1) << (JVMTI_EVENT_METHOD_EXIT - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 43 | static const jlong CLASS_FILE_LOAD_HOOK_BIT = (((jlong)1) << (JVMTI_EVENT_CLASS_FILE_LOAD_HOOK - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 44 | static const jlong NATIVE_METHOD_BIND_BIT = (((jlong)1) << (JVMTI_EVENT_NATIVE_METHOD_BIND - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 45 | static const jlong VM_START_BIT = (((jlong)1) << (JVMTI_EVENT_VM_START - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 46 | static const jlong VM_INIT_BIT = (((jlong)1) << (JVMTI_EVENT_VM_INIT - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 47 | static const jlong VM_DEATH_BIT = (((jlong)1) << (JVMTI_EVENT_VM_DEATH - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 48 | static const jlong CLASS_LOAD_BIT = (((jlong)1) << (JVMTI_EVENT_CLASS_LOAD - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 49 | static const jlong CLASS_PREPARE_BIT = (((jlong)1) << (JVMTI_EVENT_CLASS_PREPARE - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 50 | static const jlong THREAD_START_BIT = (((jlong)1) << (JVMTI_EVENT_THREAD_START - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 51 | static const jlong THREAD_END_BIT = (((jlong)1) << (JVMTI_EVENT_THREAD_END - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 52 | static const jlong EXCEPTION_THROW_BIT = (((jlong)1) << (JVMTI_EVENT_EXCEPTION - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 53 | static const jlong EXCEPTION_CATCH_BIT = (((jlong)1) << (JVMTI_EVENT_EXCEPTION_CATCH - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 54 | static const jlong MONITOR_CONTENDED_ENTER_BIT = (((jlong)1) << (JVMTI_EVENT_MONITOR_CONTENDED_ENTER - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 55 | static const jlong MONITOR_CONTENDED_ENTERED_BIT = (((jlong)1) << (JVMTI_EVENT_MONITOR_CONTENDED_ENTERED - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 56 | static const jlong MONITOR_WAIT_BIT = (((jlong)1) << (JVMTI_EVENT_MONITOR_WAIT - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 57 | static const jlong MONITOR_WAITED_BIT = (((jlong)1) << (JVMTI_EVENT_MONITOR_WAITED - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 58 | static const jlong DYNAMIC_CODE_GENERATED_BIT = (((jlong)1) << (JVMTI_EVENT_DYNAMIC_CODE_GENERATED - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 59 | static const jlong DATA_DUMP_BIT = (((jlong)1) << (JVMTI_EVENT_DATA_DUMP_REQUEST - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 60 | static const jlong COMPILED_METHOD_LOAD_BIT = (((jlong)1) << (JVMTI_EVENT_COMPILED_METHOD_LOAD - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 61 | static const jlong COMPILED_METHOD_UNLOAD_BIT = (((jlong)1) << (JVMTI_EVENT_COMPILED_METHOD_UNLOAD - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 62 | static const jlong GARBAGE_COLLECTION_START_BIT = (((jlong)1) << (JVMTI_EVENT_GARBAGE_COLLECTION_START - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 63 | static const jlong GARBAGE_COLLECTION_FINISH_BIT = (((jlong)1) << (JVMTI_EVENT_GARBAGE_COLLECTION_FINISH - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 64 | static const jlong OBJECT_FREE_BIT = (((jlong)1) << (JVMTI_EVENT_OBJECT_FREE - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 65 | static const jlong RESOURCE_EXHAUSTED_BIT = (((jlong)1) << (JVMTI_EVENT_RESOURCE_EXHAUSTED - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 66 | static const jlong VM_OBJECT_ALLOC_BIT = (((jlong)1) << (JVMTI_EVENT_VM_OBJECT_ALLOC - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 67 | |
duke@435 | 68 | // bits for extension events |
duke@435 | 69 | static const jlong CLASS_UNLOAD_BIT = (((jlong)1) << (EXT_EVENT_CLASS_UNLOAD - TOTAL_MIN_EVENT_TYPE_VAL)); |
duke@435 | 70 | |
duke@435 | 71 | |
duke@435 | 72 | static const jlong MONITOR_BITS = MONITOR_CONTENDED_ENTER_BIT | MONITOR_CONTENDED_ENTERED_BIT | |
duke@435 | 73 | MONITOR_WAIT_BIT | MONITOR_WAITED_BIT; |
duke@435 | 74 | static const jlong EXCEPTION_BITS = EXCEPTION_THROW_BIT | EXCEPTION_CATCH_BIT; |
duke@435 | 75 | static const jlong INTERP_EVENT_BITS = SINGLE_STEP_BIT | METHOD_ENTRY_BIT | METHOD_EXIT_BIT | |
duke@435 | 76 | FRAME_POP_BIT | FIELD_ACCESS_BIT | FIELD_MODIFICATION_BIT; |
duke@435 | 77 | static const jlong THREAD_FILTERED_EVENT_BITS = INTERP_EVENT_BITS | EXCEPTION_BITS | MONITOR_BITS | |
duke@435 | 78 | BREAKPOINT_BIT | CLASS_LOAD_BIT | CLASS_PREPARE_BIT | THREAD_END_BIT; |
duke@435 | 79 | static const jlong NEED_THREAD_LIFE_EVENTS = THREAD_FILTERED_EVENT_BITS | THREAD_START_BIT; |
duke@435 | 80 | static const jlong EARLY_EVENT_BITS = CLASS_FILE_LOAD_HOOK_BIT | |
duke@435 | 81 | VM_START_BIT | VM_INIT_BIT | VM_DEATH_BIT | NATIVE_METHOD_BIND_BIT | |
duke@435 | 82 | THREAD_START_BIT | THREAD_END_BIT | |
duke@435 | 83 | DYNAMIC_CODE_GENERATED_BIT; |
duke@435 | 84 | static const jlong GLOBAL_EVENT_BITS = ~THREAD_FILTERED_EVENT_BITS; |
duke@435 | 85 | |
duke@435 | 86 | |
duke@435 | 87 | /////////////////////////////////////////////////////////////// |
duke@435 | 88 | // |
duke@435 | 89 | // JvmtiEventEnabled |
duke@435 | 90 | // |
duke@435 | 91 | |
duke@435 | 92 | JvmtiEventEnabled::JvmtiEventEnabled() { |
duke@435 | 93 | clear(); |
duke@435 | 94 | } |
duke@435 | 95 | |
duke@435 | 96 | |
duke@435 | 97 | void JvmtiEventEnabled::clear() { |
duke@435 | 98 | _enabled_bits = 0; |
duke@435 | 99 | #ifndef PRODUCT |
duke@435 | 100 | _init_guard = JEE_INIT_GUARD; |
duke@435 | 101 | #endif |
duke@435 | 102 | } |
duke@435 | 103 | |
duke@435 | 104 | void JvmtiEventEnabled::set_enabled(jvmtiEvent event_type, bool enabled) { |
duke@435 | 105 | jlong bits = get_bits(); |
duke@435 | 106 | jlong mask = bit_for(event_type); |
duke@435 | 107 | if (enabled) { |
duke@435 | 108 | bits |= mask; |
duke@435 | 109 | } else { |
duke@435 | 110 | bits &= ~mask; |
duke@435 | 111 | } |
duke@435 | 112 | set_bits(bits); |
duke@435 | 113 | } |
duke@435 | 114 | |
duke@435 | 115 | |
duke@435 | 116 | /////////////////////////////////////////////////////////////// |
duke@435 | 117 | // |
duke@435 | 118 | // JvmtiEnvThreadEventEnable |
duke@435 | 119 | // |
duke@435 | 120 | |
duke@435 | 121 | JvmtiEnvThreadEventEnable::JvmtiEnvThreadEventEnable() { |
duke@435 | 122 | _event_user_enabled.clear(); |
duke@435 | 123 | _event_enabled.clear(); |
duke@435 | 124 | } |
duke@435 | 125 | |
duke@435 | 126 | |
duke@435 | 127 | JvmtiEnvThreadEventEnable::~JvmtiEnvThreadEventEnable() { |
duke@435 | 128 | _event_user_enabled.clear(); |
duke@435 | 129 | _event_enabled.clear(); |
duke@435 | 130 | } |
duke@435 | 131 | |
duke@435 | 132 | |
duke@435 | 133 | /////////////////////////////////////////////////////////////// |
duke@435 | 134 | // |
duke@435 | 135 | // JvmtiThreadEventEnable |
duke@435 | 136 | // |
duke@435 | 137 | |
duke@435 | 138 | JvmtiThreadEventEnable::JvmtiThreadEventEnable() { |
duke@435 | 139 | _event_enabled.clear(); |
duke@435 | 140 | } |
duke@435 | 141 | |
duke@435 | 142 | |
duke@435 | 143 | JvmtiThreadEventEnable::~JvmtiThreadEventEnable() { |
duke@435 | 144 | _event_enabled.clear(); |
duke@435 | 145 | } |
duke@435 | 146 | |
duke@435 | 147 | |
duke@435 | 148 | /////////////////////////////////////////////////////////////// |
duke@435 | 149 | // |
duke@435 | 150 | // JvmtiEnvEventEnable |
duke@435 | 151 | // |
duke@435 | 152 | |
duke@435 | 153 | JvmtiEnvEventEnable::JvmtiEnvEventEnable() { |
duke@435 | 154 | _event_user_enabled.clear(); |
duke@435 | 155 | _event_callback_enabled.clear(); |
duke@435 | 156 | _event_enabled.clear(); |
duke@435 | 157 | } |
duke@435 | 158 | |
duke@435 | 159 | |
duke@435 | 160 | JvmtiEnvEventEnable::~JvmtiEnvEventEnable() { |
duke@435 | 161 | _event_user_enabled.clear(); |
duke@435 | 162 | _event_callback_enabled.clear(); |
duke@435 | 163 | _event_enabled.clear(); |
duke@435 | 164 | } |
duke@435 | 165 | |
duke@435 | 166 | |
duke@435 | 167 | /////////////////////////////////////////////////////////////// |
duke@435 | 168 | // |
duke@435 | 169 | // VM_EnterInterpOnlyMode |
duke@435 | 170 | // |
duke@435 | 171 | |
duke@435 | 172 | class VM_EnterInterpOnlyMode : public VM_Operation { |
duke@435 | 173 | private: |
duke@435 | 174 | JvmtiThreadState *_state; |
duke@435 | 175 | |
duke@435 | 176 | public: |
duke@435 | 177 | VM_EnterInterpOnlyMode(JvmtiThreadState *state); |
duke@435 | 178 | |
duke@435 | 179 | bool allow_nested_vm_operations() const { return true; } |
duke@435 | 180 | VMOp_Type type() const { return VMOp_EnterInterpOnlyMode; } |
duke@435 | 181 | void doit(); |
duke@435 | 182 | |
duke@435 | 183 | // to do: this same function is in jvmtiImpl - should be in one place |
duke@435 | 184 | bool can_be_deoptimized(vframe* vf) { |
duke@435 | 185 | return (vf->is_compiled_frame() && vf->fr().can_be_deoptimized()); |
duke@435 | 186 | } |
duke@435 | 187 | }; |
duke@435 | 188 | |
duke@435 | 189 | VM_EnterInterpOnlyMode::VM_EnterInterpOnlyMode(JvmtiThreadState *state) |
duke@435 | 190 | : _state(state) |
duke@435 | 191 | { |
duke@435 | 192 | } |
duke@435 | 193 | |
duke@435 | 194 | |
duke@435 | 195 | void VM_EnterInterpOnlyMode::doit() { |
duke@435 | 196 | // Set up the current stack depth for later tracking |
duke@435 | 197 | _state->invalidate_cur_stack_depth(); |
duke@435 | 198 | |
duke@435 | 199 | _state->enter_interp_only_mode(); |
duke@435 | 200 | |
duke@435 | 201 | JavaThread *thread = _state->get_thread(); |
duke@435 | 202 | if (thread->has_last_Java_frame()) { |
duke@435 | 203 | // If running in fullspeed mode, single stepping is implemented |
duke@435 | 204 | // as follows: first, the interpreter does not dispatch to |
duke@435 | 205 | // compiled code for threads that have single stepping enabled; |
duke@435 | 206 | // second, we deoptimize all methods on the thread's stack when |
duke@435 | 207 | // interpreted-only mode is enabled the first time for a given |
duke@435 | 208 | // thread (nothing to do if no Java frames yet). |
duke@435 | 209 | int num_marked = 0; |
duke@435 | 210 | ResourceMark resMark; |
duke@435 | 211 | RegisterMap rm(thread, false); |
duke@435 | 212 | for (vframe* vf = thread->last_java_vframe(&rm); vf; vf = vf->sender()) { |
duke@435 | 213 | if (can_be_deoptimized(vf)) { |
duke@435 | 214 | ((compiledVFrame*) vf)->code()->mark_for_deoptimization(); |
duke@435 | 215 | ++num_marked; |
duke@435 | 216 | } |
duke@435 | 217 | } |
duke@435 | 218 | if (num_marked > 0) { |
duke@435 | 219 | VM_Deoptimize op; |
duke@435 | 220 | VMThread::execute(&op); |
duke@435 | 221 | } |
duke@435 | 222 | } |
duke@435 | 223 | } |
duke@435 | 224 | |
duke@435 | 225 | |
duke@435 | 226 | /////////////////////////////////////////////////////////////// |
duke@435 | 227 | // |
duke@435 | 228 | // VM_ChangeSingleStep |
duke@435 | 229 | // |
duke@435 | 230 | |
duke@435 | 231 | class VM_ChangeSingleStep : public VM_Operation { |
duke@435 | 232 | private: |
duke@435 | 233 | bool _on; |
duke@435 | 234 | |
duke@435 | 235 | public: |
duke@435 | 236 | VM_ChangeSingleStep(bool on); |
duke@435 | 237 | VMOp_Type type() const { return VMOp_ChangeSingleStep; } |
duke@435 | 238 | bool allow_nested_vm_operations() const { return true; } |
duke@435 | 239 | void doit(); // method definition is after definition of JvmtiEventControllerPrivate because of scoping |
duke@435 | 240 | }; |
duke@435 | 241 | |
duke@435 | 242 | |
duke@435 | 243 | VM_ChangeSingleStep::VM_ChangeSingleStep(bool on) |
duke@435 | 244 | : _on(on != 0) |
duke@435 | 245 | { |
duke@435 | 246 | } |
duke@435 | 247 | |
duke@435 | 248 | |
duke@435 | 249 | |
duke@435 | 250 | |
duke@435 | 251 | /////////////////////////////////////////////////////////////// |
duke@435 | 252 | // |
duke@435 | 253 | // JvmtiEventControllerPrivate |
duke@435 | 254 | // |
duke@435 | 255 | // Private internal implementation methods for JvmtiEventController. |
duke@435 | 256 | // |
duke@435 | 257 | // These methods are thread safe either because they are called |
duke@435 | 258 | // in early VM initialization which is single threaded, or they |
duke@435 | 259 | // hold the JvmtiThreadState_lock. |
duke@435 | 260 | // |
duke@435 | 261 | |
duke@435 | 262 | class JvmtiEventControllerPrivate : public AllStatic { |
duke@435 | 263 | static bool _initialized; |
duke@435 | 264 | public: |
duke@435 | 265 | static void set_should_post_single_step(bool on); |
duke@435 | 266 | static void enter_interp_only_mode(JvmtiThreadState *state); |
duke@435 | 267 | static void leave_interp_only_mode(JvmtiThreadState *state); |
duke@435 | 268 | static void recompute_enabled(); |
duke@435 | 269 | static jlong recompute_env_enabled(JvmtiEnvBase* env); |
duke@435 | 270 | static jlong recompute_env_thread_enabled(JvmtiEnvThreadState* ets, JvmtiThreadState* state); |
duke@435 | 271 | static jlong recompute_thread_enabled(JvmtiThreadState *state); |
duke@435 | 272 | static void event_init(); |
duke@435 | 273 | |
duke@435 | 274 | static void set_user_enabled(JvmtiEnvBase *env, JavaThread *thread, |
duke@435 | 275 | jvmtiEvent event_type, bool enabled); |
duke@435 | 276 | static void set_event_callbacks(JvmtiEnvBase *env, |
duke@435 | 277 | const jvmtiEventCallbacks* callbacks, |
duke@435 | 278 | jint size_of_callbacks); |
duke@435 | 279 | |
duke@435 | 280 | static void set_extension_event_callback(JvmtiEnvBase *env, |
duke@435 | 281 | jint extension_event_index, |
duke@435 | 282 | jvmtiExtensionEvent callback); |
duke@435 | 283 | |
duke@435 | 284 | static void set_frame_pop(JvmtiEnvThreadState *env_thread, JvmtiFramePop fpop); |
duke@435 | 285 | static void clear_frame_pop(JvmtiEnvThreadState *env_thread, JvmtiFramePop fpop); |
duke@435 | 286 | static void clear_to_frame_pop(JvmtiEnvThreadState *env_thread, JvmtiFramePop fpop); |
duke@435 | 287 | static void change_field_watch(jvmtiEvent event_type, bool added); |
duke@435 | 288 | |
duke@435 | 289 | static void thread_started(JavaThread *thread); |
duke@435 | 290 | static void thread_ended(JavaThread *thread); |
duke@435 | 291 | |
duke@435 | 292 | static void env_initialize(JvmtiEnvBase *env); |
duke@435 | 293 | static void env_dispose(JvmtiEnvBase *env); |
duke@435 | 294 | |
duke@435 | 295 | static void vm_start(); |
duke@435 | 296 | static void vm_init(); |
duke@435 | 297 | static void vm_death(); |
duke@435 | 298 | |
duke@435 | 299 | static void trace_changed(JvmtiThreadState *state, jlong now_enabled, jlong changed); |
duke@435 | 300 | static void trace_changed(jlong now_enabled, jlong changed); |
duke@435 | 301 | }; |
duke@435 | 302 | |
duke@435 | 303 | bool JvmtiEventControllerPrivate::_initialized = false; |
duke@435 | 304 | |
duke@435 | 305 | void JvmtiEventControllerPrivate::set_should_post_single_step(bool on) { |
duke@435 | 306 | // we have permission to do this, VM op doesn't |
duke@435 | 307 | JvmtiExport::set_should_post_single_step(on); |
duke@435 | 308 | } |
duke@435 | 309 | |
duke@435 | 310 | |
duke@435 | 311 | // This change must always be occur when at a safepoint. |
duke@435 | 312 | // Being at a safepoint causes the interpreter to use the |
duke@435 | 313 | // safepoint dispatch table which we overload to find single |
duke@435 | 314 | // step points. Just to be sure that it has been set, we |
duke@435 | 315 | // call notice_safepoints when turning on single stepping. |
duke@435 | 316 | // When we leave our current safepoint, should_post_single_step |
duke@435 | 317 | // will be checked by the interpreter, and the table kept |
duke@435 | 318 | // or changed accordingly. |
duke@435 | 319 | void VM_ChangeSingleStep::doit() { |
duke@435 | 320 | JvmtiEventControllerPrivate::set_should_post_single_step(_on); |
duke@435 | 321 | if (_on) { |
duke@435 | 322 | Interpreter::notice_safepoints(); |
duke@435 | 323 | } |
duke@435 | 324 | } |
duke@435 | 325 | |
duke@435 | 326 | |
duke@435 | 327 | void JvmtiEventControllerPrivate::enter_interp_only_mode(JvmtiThreadState *state) { |
duke@435 | 328 | EC_TRACE(("JVMTI [%s] # Entering interpreter only mode", |
duke@435 | 329 | JvmtiTrace::safe_get_thread_name(state->get_thread()))); |
duke@435 | 330 | |
duke@435 | 331 | VM_EnterInterpOnlyMode op(state); |
duke@435 | 332 | VMThread::execute(&op); |
duke@435 | 333 | } |
duke@435 | 334 | |
duke@435 | 335 | |
duke@435 | 336 | void |
duke@435 | 337 | JvmtiEventControllerPrivate::leave_interp_only_mode(JvmtiThreadState *state) { |
duke@435 | 338 | EC_TRACE(("JVMTI [%s] # Leaving interpreter only mode", |
duke@435 | 339 | JvmtiTrace::safe_get_thread_name(state->get_thread()))); |
duke@435 | 340 | state->leave_interp_only_mode(); |
duke@435 | 341 | } |
duke@435 | 342 | |
duke@435 | 343 | |
duke@435 | 344 | void |
duke@435 | 345 | JvmtiEventControllerPrivate::trace_changed(JvmtiThreadState *state, jlong now_enabled, jlong changed) { |
duke@435 | 346 | #ifdef JVMTI_TRACE |
duke@435 | 347 | if (JvmtiTrace::trace_event_controller()) { |
duke@435 | 348 | SafeResourceMark rm; |
duke@435 | 349 | // traces standard events only |
duke@435 | 350 | for (int ei = JVMTI_MIN_EVENT_TYPE_VAL; ei <= JVMTI_MAX_EVENT_TYPE_VAL; ++ei) { |
duke@435 | 351 | jlong bit = JvmtiEventEnabled::bit_for((jvmtiEvent)ei); |
duke@435 | 352 | if (changed & bit) { |
duke@435 | 353 | // it changed, print it |
duke@435 | 354 | tty->print_cr("JVMTI [%s] # %s event %s", |
duke@435 | 355 | JvmtiTrace::safe_get_thread_name(state->get_thread()), |
duke@435 | 356 | (now_enabled & bit)? "Enabling" : "Disabling", JvmtiTrace::event_name((jvmtiEvent)ei)); |
duke@435 | 357 | } |
duke@435 | 358 | } |
duke@435 | 359 | } |
duke@435 | 360 | #endif /*JVMTI_TRACE */ |
duke@435 | 361 | } |
duke@435 | 362 | |
duke@435 | 363 | |
duke@435 | 364 | void |
duke@435 | 365 | JvmtiEventControllerPrivate::trace_changed(jlong now_enabled, jlong changed) { |
duke@435 | 366 | #ifdef JVMTI_TRACE |
duke@435 | 367 | if (JvmtiTrace::trace_event_controller()) { |
duke@435 | 368 | SafeResourceMark rm; |
duke@435 | 369 | // traces standard events only |
duke@435 | 370 | for (int ei = JVMTI_MIN_EVENT_TYPE_VAL; ei <= JVMTI_MAX_EVENT_TYPE_VAL; ++ei) { |
duke@435 | 371 | jlong bit = JvmtiEventEnabled::bit_for((jvmtiEvent)ei); |
duke@435 | 372 | if (changed & bit) { |
duke@435 | 373 | // it changed, print it |
duke@435 | 374 | tty->print_cr("JVMTI [-] # %s event %s", |
duke@435 | 375 | (now_enabled & bit)? "Enabling" : "Disabling", JvmtiTrace::event_name((jvmtiEvent)ei)); |
duke@435 | 376 | } |
duke@435 | 377 | } |
duke@435 | 378 | } |
duke@435 | 379 | #endif /*JVMTI_TRACE */ |
duke@435 | 380 | } |
duke@435 | 381 | |
duke@435 | 382 | |
duke@435 | 383 | // For the specified env: compute the currently truly enabled events |
duke@435 | 384 | // set external state accordingly. |
duke@435 | 385 | // Return value and set value must include all events. |
duke@435 | 386 | // But outside this class, only non-thread-filtered events can be queried.. |
duke@435 | 387 | jlong |
duke@435 | 388 | JvmtiEventControllerPrivate::recompute_env_enabled(JvmtiEnvBase* env) { |
duke@435 | 389 | jlong was_enabled = env->env_event_enable()->_event_enabled.get_bits(); |
duke@435 | 390 | jlong now_enabled = |
duke@435 | 391 | env->env_event_enable()->_event_callback_enabled.get_bits() & |
duke@435 | 392 | env->env_event_enable()->_event_user_enabled.get_bits(); |
duke@435 | 393 | |
duke@435 | 394 | switch (JvmtiEnv::get_phase()) { |
duke@435 | 395 | case JVMTI_PHASE_PRIMORDIAL: |
duke@435 | 396 | case JVMTI_PHASE_ONLOAD: |
duke@435 | 397 | // only these events allowed in primordial or onload phase |
duke@435 | 398 | now_enabled &= (EARLY_EVENT_BITS & ~THREAD_FILTERED_EVENT_BITS); |
duke@435 | 399 | break; |
duke@435 | 400 | case JVMTI_PHASE_START: |
duke@435 | 401 | // only these events allowed in start phase |
duke@435 | 402 | now_enabled &= EARLY_EVENT_BITS; |
duke@435 | 403 | break; |
duke@435 | 404 | case JVMTI_PHASE_LIVE: |
duke@435 | 405 | // all events allowed during live phase |
duke@435 | 406 | break; |
duke@435 | 407 | case JVMTI_PHASE_DEAD: |
duke@435 | 408 | // no events allowed when dead |
duke@435 | 409 | now_enabled = 0; |
duke@435 | 410 | break; |
duke@435 | 411 | default: |
duke@435 | 412 | assert(false, "no other phases - sanity check"); |
duke@435 | 413 | break; |
duke@435 | 414 | } |
duke@435 | 415 | |
duke@435 | 416 | // will we really send these events to this env |
duke@435 | 417 | env->env_event_enable()->_event_enabled.set_bits(now_enabled); |
duke@435 | 418 | |
duke@435 | 419 | trace_changed(now_enabled, (now_enabled ^ was_enabled) & ~THREAD_FILTERED_EVENT_BITS); |
duke@435 | 420 | |
duke@435 | 421 | return now_enabled; |
duke@435 | 422 | } |
duke@435 | 423 | |
duke@435 | 424 | |
duke@435 | 425 | // For the specified env and thread: compute the currently truly enabled events |
duke@435 | 426 | // set external state accordingly. Only thread-filtered events are included. |
duke@435 | 427 | jlong |
duke@435 | 428 | JvmtiEventControllerPrivate::recompute_env_thread_enabled(JvmtiEnvThreadState* ets, JvmtiThreadState* state) { |
duke@435 | 429 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 430 | |
duke@435 | 431 | jlong was_enabled = ets->event_enable()->_event_enabled.get_bits(); |
duke@435 | 432 | jlong now_enabled = THREAD_FILTERED_EVENT_BITS & |
duke@435 | 433 | env->env_event_enable()->_event_callback_enabled.get_bits() & |
duke@435 | 434 | (env->env_event_enable()->_event_user_enabled.get_bits() | |
duke@435 | 435 | ets->event_enable()->_event_user_enabled.get_bits()); |
duke@435 | 436 | |
duke@435 | 437 | // for frame pops and field watchs, computed enabled state |
duke@435 | 438 | // is only true if an event has been requested |
duke@435 | 439 | if (!ets->has_frame_pops()) { |
duke@435 | 440 | now_enabled &= ~FRAME_POP_BIT; |
duke@435 | 441 | } |
duke@435 | 442 | if (*((int *)JvmtiExport::get_field_access_count_addr()) == 0) { |
duke@435 | 443 | now_enabled &= ~FIELD_ACCESS_BIT; |
duke@435 | 444 | } |
duke@435 | 445 | if (*((int *)JvmtiExport::get_field_modification_count_addr()) == 0) { |
duke@435 | 446 | now_enabled &= ~FIELD_MODIFICATION_BIT; |
duke@435 | 447 | } |
duke@435 | 448 | |
duke@435 | 449 | switch (JvmtiEnv::get_phase()) { |
duke@435 | 450 | case JVMTI_PHASE_DEAD: |
duke@435 | 451 | // no events allowed when dead |
duke@435 | 452 | now_enabled = 0; |
duke@435 | 453 | break; |
duke@435 | 454 | } |
duke@435 | 455 | |
duke@435 | 456 | // if anything changed do update |
duke@435 | 457 | if (now_enabled != was_enabled) { |
duke@435 | 458 | |
duke@435 | 459 | // will we really send these events to this thread x env |
duke@435 | 460 | ets->event_enable()->_event_enabled.set_bits(now_enabled); |
duke@435 | 461 | |
duke@435 | 462 | // If the enabled status of the single step or breakpoint events changed, |
duke@435 | 463 | // the location status may need to change as well. |
duke@435 | 464 | jlong changed = now_enabled ^ was_enabled; |
duke@435 | 465 | if (changed & SINGLE_STEP_BIT) { |
duke@435 | 466 | ets->reset_current_location(JVMTI_EVENT_SINGLE_STEP, (now_enabled & SINGLE_STEP_BIT) != 0); |
duke@435 | 467 | } |
duke@435 | 468 | if (changed & BREAKPOINT_BIT) { |
duke@435 | 469 | ets->reset_current_location(JVMTI_EVENT_BREAKPOINT, (now_enabled & BREAKPOINT_BIT) != 0); |
duke@435 | 470 | } |
duke@435 | 471 | trace_changed(state, now_enabled, changed); |
duke@435 | 472 | } |
duke@435 | 473 | return now_enabled; |
duke@435 | 474 | } |
duke@435 | 475 | |
duke@435 | 476 | |
duke@435 | 477 | // For the specified thread: compute the currently truly enabled events |
duke@435 | 478 | // set external state accordingly. Only thread-filtered events are included. |
duke@435 | 479 | jlong |
duke@435 | 480 | JvmtiEventControllerPrivate::recompute_thread_enabled(JvmtiThreadState *state) { |
dcubed@1044 | 481 | if (state == NULL) { |
dcubed@1044 | 482 | // associated JavaThread is exiting |
dcubed@1044 | 483 | return (jlong)0; |
dcubed@1044 | 484 | } |
dcubed@1044 | 485 | |
duke@435 | 486 | jlong was_any_env_enabled = state->thread_event_enable()->_event_enabled.get_bits(); |
duke@435 | 487 | jlong any_env_enabled = 0; |
duke@435 | 488 | |
duke@435 | 489 | { |
duke@435 | 490 | // This iteration will include JvmtiEnvThreadStates whoses environments |
duke@435 | 491 | // have been disposed. These JvmtiEnvThreadStates must not be filtered |
duke@435 | 492 | // as recompute must be called on them to disable their events, |
duke@435 | 493 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 494 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 495 | any_env_enabled |= recompute_env_thread_enabled(ets, state); |
duke@435 | 496 | } |
duke@435 | 497 | } |
duke@435 | 498 | |
duke@435 | 499 | if (any_env_enabled != was_any_env_enabled) { |
duke@435 | 500 | // mark if event is truly enabled on this thread in any environment |
duke@435 | 501 | state->thread_event_enable()->_event_enabled.set_bits(any_env_enabled); |
duke@435 | 502 | |
duke@435 | 503 | // compute interp_only mode |
duke@435 | 504 | bool should_be_interp = (any_env_enabled & INTERP_EVENT_BITS) != 0; |
duke@435 | 505 | bool is_now_interp = state->is_interp_only_mode(); |
duke@435 | 506 | |
duke@435 | 507 | if (should_be_interp != is_now_interp) { |
duke@435 | 508 | if (should_be_interp) { |
duke@435 | 509 | enter_interp_only_mode(state); |
duke@435 | 510 | } else { |
duke@435 | 511 | leave_interp_only_mode(state); |
duke@435 | 512 | } |
duke@435 | 513 | } |
duke@435 | 514 | } |
duke@435 | 515 | return any_env_enabled; |
duke@435 | 516 | } |
duke@435 | 517 | |
duke@435 | 518 | |
duke@435 | 519 | // Compute truly enabled events - meaning if the event can and could be |
duke@435 | 520 | // sent. An event is truly enabled if it is user enabled on the thread |
duke@435 | 521 | // or globally user enabled, but only if there is a callback or event hook |
duke@435 | 522 | // for it and, for field watch and frame pop, one has been set. |
duke@435 | 523 | // Compute if truly enabled, per thread, per environment, per combination |
duke@435 | 524 | // (thread x environment), and overall. These merges are true if any is true. |
duke@435 | 525 | // True per thread if some environment has callback set and the event is globally |
duke@435 | 526 | // enabled or enabled for this thread. |
duke@435 | 527 | // True per environment if the callback is set and the event is globally |
duke@435 | 528 | // enabled in this environment or enabled for any thread in this environment. |
duke@435 | 529 | // True per combination if the environment has the callback set and the |
duke@435 | 530 | // event is globally enabled in this environment or the event is enabled |
duke@435 | 531 | // for this thread and environment. |
duke@435 | 532 | // |
duke@435 | 533 | // All states transitions dependent on these transitions are also handled here. |
duke@435 | 534 | void |
duke@435 | 535 | JvmtiEventControllerPrivate::recompute_enabled() { |
duke@435 | 536 | assert(Threads::number_of_threads() == 0 || JvmtiThreadState_lock->is_locked(), "sanity check"); |
duke@435 | 537 | |
duke@435 | 538 | // event enabled for any thread in any environment |
duke@435 | 539 | jlong was_any_env_thread_enabled = JvmtiEventController::_universal_global_event_enabled.get_bits(); |
duke@435 | 540 | jlong any_env_thread_enabled = 0; |
duke@435 | 541 | |
duke@435 | 542 | EC_TRACE(("JVMTI [-] # recompute enabled - before %llx", was_any_env_thread_enabled)); |
duke@435 | 543 | |
duke@435 | 544 | // compute non-thread-filters events. |
duke@435 | 545 | // This must be done separately from thread-filtered events, since some |
duke@435 | 546 | // events can occur before any threads exist. |
duke@435 | 547 | JvmtiEnvIterator it; |
duke@435 | 548 | for (JvmtiEnvBase* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 549 | any_env_thread_enabled |= recompute_env_enabled(env); |
duke@435 | 550 | } |
duke@435 | 551 | |
duke@435 | 552 | // We need to create any missing jvmti_thread_state if there are globally set thread |
duke@435 | 553 | // filtered events and there weren't last time |
duke@435 | 554 | if ( (any_env_thread_enabled & THREAD_FILTERED_EVENT_BITS) != 0 && |
duke@435 | 555 | (was_any_env_thread_enabled & THREAD_FILTERED_EVENT_BITS) == 0) { |
duke@435 | 556 | assert(JvmtiEnv::is_vm_live() || (JvmtiEnv::get_phase()==JVMTI_PHASE_START), |
duke@435 | 557 | "thread filtered events should not be enabled when VM not in start or live phase"); |
duke@435 | 558 | { |
duke@435 | 559 | MutexLocker mu(Threads_lock); //hold the Threads_lock for the iteration |
duke@435 | 560 | for (JavaThread *tp = Threads::first(); tp != NULL; tp = tp->next()) { |
dcubed@1044 | 561 | // state_for_while_locked() makes tp->is_exiting() check |
duke@435 | 562 | JvmtiThreadState::state_for_while_locked(tp); // create the thread state if missing |
duke@435 | 563 | } |
duke@435 | 564 | }// release Threads_lock |
duke@435 | 565 | } |
duke@435 | 566 | |
duke@435 | 567 | // compute and set thread-filtered events |
duke@435 | 568 | for (JvmtiThreadState *state = JvmtiThreadState::first(); state != NULL; state = state->next()) { |
duke@435 | 569 | any_env_thread_enabled |= recompute_thread_enabled(state); |
duke@435 | 570 | } |
duke@435 | 571 | |
duke@435 | 572 | // set universal state (across all envs and threads) |
duke@435 | 573 | jlong delta = any_env_thread_enabled ^ was_any_env_thread_enabled; |
duke@435 | 574 | if (delta != 0) { |
duke@435 | 575 | JvmtiExport::set_should_post_field_access((any_env_thread_enabled & FIELD_ACCESS_BIT) != 0); |
duke@435 | 576 | JvmtiExport::set_should_post_field_modification((any_env_thread_enabled & FIELD_MODIFICATION_BIT) != 0); |
duke@435 | 577 | JvmtiExport::set_should_post_class_load((any_env_thread_enabled & CLASS_LOAD_BIT) != 0); |
duke@435 | 578 | JvmtiExport::set_should_post_class_file_load_hook((any_env_thread_enabled & CLASS_FILE_LOAD_HOOK_BIT) != 0); |
duke@435 | 579 | JvmtiExport::set_should_post_native_method_bind((any_env_thread_enabled & NATIVE_METHOD_BIND_BIT) != 0); |
duke@435 | 580 | JvmtiExport::set_should_post_dynamic_code_generated((any_env_thread_enabled & DYNAMIC_CODE_GENERATED_BIT) != 0); |
duke@435 | 581 | JvmtiExport::set_should_post_data_dump((any_env_thread_enabled & DATA_DUMP_BIT) != 0); |
duke@435 | 582 | JvmtiExport::set_should_post_class_prepare((any_env_thread_enabled & CLASS_PREPARE_BIT) != 0); |
duke@435 | 583 | JvmtiExport::set_should_post_class_unload((any_env_thread_enabled & CLASS_UNLOAD_BIT) != 0); |
duke@435 | 584 | JvmtiExport::set_should_post_monitor_contended_enter((any_env_thread_enabled & MONITOR_CONTENDED_ENTER_BIT) != 0); |
duke@435 | 585 | JvmtiExport::set_should_post_monitor_contended_entered((any_env_thread_enabled & MONITOR_CONTENDED_ENTERED_BIT) != 0); |
duke@435 | 586 | JvmtiExport::set_should_post_monitor_wait((any_env_thread_enabled & MONITOR_WAIT_BIT) != 0); |
duke@435 | 587 | JvmtiExport::set_should_post_monitor_waited((any_env_thread_enabled & MONITOR_WAITED_BIT) != 0); |
duke@435 | 588 | JvmtiExport::set_should_post_garbage_collection_start((any_env_thread_enabled & GARBAGE_COLLECTION_START_BIT) != 0); |
duke@435 | 589 | JvmtiExport::set_should_post_garbage_collection_finish((any_env_thread_enabled & GARBAGE_COLLECTION_FINISH_BIT) != 0); |
duke@435 | 590 | JvmtiExport::set_should_post_object_free((any_env_thread_enabled & OBJECT_FREE_BIT) != 0); |
duke@435 | 591 | JvmtiExport::set_should_post_resource_exhausted((any_env_thread_enabled & RESOURCE_EXHAUSTED_BIT) != 0); |
duke@435 | 592 | JvmtiExport::set_should_post_compiled_method_load((any_env_thread_enabled & COMPILED_METHOD_LOAD_BIT) != 0); |
duke@435 | 593 | JvmtiExport::set_should_post_compiled_method_unload((any_env_thread_enabled & COMPILED_METHOD_UNLOAD_BIT) != 0); |
duke@435 | 594 | JvmtiExport::set_should_post_vm_object_alloc((any_env_thread_enabled & VM_OBJECT_ALLOC_BIT) != 0); |
duke@435 | 595 | |
duke@435 | 596 | // need this if we want thread events or we need them to init data |
duke@435 | 597 | JvmtiExport::set_should_post_thread_life((any_env_thread_enabled & NEED_THREAD_LIFE_EVENTS) != 0); |
duke@435 | 598 | |
duke@435 | 599 | // If single stepping is turned on or off, execute the VM op to change it. |
duke@435 | 600 | if (delta & SINGLE_STEP_BIT) { |
duke@435 | 601 | switch (JvmtiEnv::get_phase()) { |
duke@435 | 602 | case JVMTI_PHASE_DEAD: |
duke@435 | 603 | // If the VM is dying we can't execute VM ops |
duke@435 | 604 | break; |
duke@435 | 605 | case JVMTI_PHASE_LIVE: { |
duke@435 | 606 | VM_ChangeSingleStep op((any_env_thread_enabled & SINGLE_STEP_BIT) != 0); |
duke@435 | 607 | VMThread::execute(&op); |
duke@435 | 608 | break; |
duke@435 | 609 | } |
duke@435 | 610 | default: |
duke@435 | 611 | assert(false, "should never come here before live phase"); |
duke@435 | 612 | break; |
duke@435 | 613 | } |
duke@435 | 614 | } |
duke@435 | 615 | |
duke@435 | 616 | // set global truly enabled, that is, any thread in any environment |
duke@435 | 617 | JvmtiEventController::_universal_global_event_enabled.set_bits(any_env_thread_enabled); |
duke@435 | 618 | } |
duke@435 | 619 | |
duke@435 | 620 | EC_TRACE(("JVMTI [-] # recompute enabled - after %llx", any_env_thread_enabled)); |
duke@435 | 621 | } |
duke@435 | 622 | |
duke@435 | 623 | |
duke@435 | 624 | void |
duke@435 | 625 | JvmtiEventControllerPrivate::thread_started(JavaThread *thread) { |
duke@435 | 626 | assert(thread->is_Java_thread(), "Must be JavaThread"); |
duke@435 | 627 | assert(thread == Thread::current(), "must be current thread"); |
duke@435 | 628 | assert(JvmtiEnvBase::environments_might_exist(), "to enter event controller, JVM TI environments must exist"); |
duke@435 | 629 | |
duke@435 | 630 | EC_TRACE(("JVMTI [%s] # thread started", JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 631 | |
duke@435 | 632 | // if we have any thread filtered events globally enabled, create/update the thread state |
duke@435 | 633 | if ((JvmtiEventController::_universal_global_event_enabled.get_bits() & THREAD_FILTERED_EVENT_BITS) != 0) { |
duke@435 | 634 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 635 | // create the thread state if missing |
duke@435 | 636 | JvmtiThreadState *state = JvmtiThreadState::state_for_while_locked(thread); |
duke@435 | 637 | if (state != NULL) { // skip threads with no JVMTI thread state |
duke@435 | 638 | recompute_thread_enabled(state); |
duke@435 | 639 | } |
duke@435 | 640 | } |
duke@435 | 641 | } |
duke@435 | 642 | |
duke@435 | 643 | |
duke@435 | 644 | void |
duke@435 | 645 | JvmtiEventControllerPrivate::thread_ended(JavaThread *thread) { |
duke@435 | 646 | // Removes the JvmtiThreadState associated with the specified thread. |
duke@435 | 647 | // May be called after all environments have been disposed. |
duke@435 | 648 | |
duke@435 | 649 | EC_TRACE(("JVMTI [%s] # thread ended", JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 650 | |
duke@435 | 651 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 652 | if (state != NULL) { |
duke@435 | 653 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 654 | delete state; |
duke@435 | 655 | } |
duke@435 | 656 | } |
duke@435 | 657 | |
duke@435 | 658 | void JvmtiEventControllerPrivate::set_event_callbacks(JvmtiEnvBase *env, |
duke@435 | 659 | const jvmtiEventCallbacks* callbacks, |
duke@435 | 660 | jint size_of_callbacks) { |
duke@435 | 661 | assert(Threads::number_of_threads() == 0 || JvmtiThreadState_lock->is_locked(), "sanity check"); |
duke@435 | 662 | EC_TRACE(("JVMTI [*] # set event callbacks")); |
duke@435 | 663 | |
duke@435 | 664 | env->set_event_callbacks(callbacks, size_of_callbacks); |
duke@435 | 665 | jlong enabled_bits = 0; |
duke@435 | 666 | for (int ei = JVMTI_MIN_EVENT_TYPE_VAL; ei <= JVMTI_MAX_EVENT_TYPE_VAL; ++ei) { |
duke@435 | 667 | jvmtiEvent evt_t = (jvmtiEvent)ei; |
duke@435 | 668 | if (env->has_callback(evt_t)) { |
duke@435 | 669 | enabled_bits |= JvmtiEventEnabled::bit_for(evt_t); |
duke@435 | 670 | } |
duke@435 | 671 | } |
duke@435 | 672 | env->env_event_enable()->_event_callback_enabled.set_bits(enabled_bits); |
duke@435 | 673 | recompute_enabled(); |
duke@435 | 674 | } |
duke@435 | 675 | |
duke@435 | 676 | void |
duke@435 | 677 | JvmtiEventControllerPrivate::set_extension_event_callback(JvmtiEnvBase *env, |
duke@435 | 678 | jint extension_event_index, |
duke@435 | 679 | jvmtiExtensionEvent callback) |
duke@435 | 680 | { |
duke@435 | 681 | assert(Threads::number_of_threads() == 0 || JvmtiThreadState_lock->is_locked(), "sanity check"); |
duke@435 | 682 | EC_TRACE(("JVMTI [*] # set extension event callback")); |
duke@435 | 683 | |
duke@435 | 684 | // extension events are allocated below JVMTI_MIN_EVENT_TYPE_VAL |
duke@435 | 685 | assert(extension_event_index >= (jint)EXT_MIN_EVENT_TYPE_VAL && |
duke@435 | 686 | extension_event_index <= (jint)EXT_MAX_EVENT_TYPE_VAL, "sanity check"); |
duke@435 | 687 | |
duke@435 | 688 | |
duke@435 | 689 | // As the bits for both standard (jvmtiEvent) and extension |
duke@435 | 690 | // (jvmtiExtEvents) are stored in the same word we cast here to |
duke@435 | 691 | // jvmtiEvent to set/clear the bit for this extension event. |
duke@435 | 692 | jvmtiEvent event_type = (jvmtiEvent)extension_event_index; |
duke@435 | 693 | |
duke@435 | 694 | // Prevent a possible race condition where events are re-enabled by a call to |
duke@435 | 695 | // set event callbacks, where the DisposeEnvironment occurs after the boiler-plate |
duke@435 | 696 | // environment check and before the lock is acquired. |
duke@435 | 697 | // We can safely do the is_valid check now, as JvmtiThreadState_lock is held. |
duke@435 | 698 | bool enabling = (callback != NULL) && (env->is_valid()); |
duke@435 | 699 | env->env_event_enable()->set_user_enabled(event_type, enabling); |
duke@435 | 700 | |
duke@435 | 701 | // update the callback |
duke@435 | 702 | jvmtiExtEventCallbacks* ext_callbacks = env->ext_callbacks(); |
duke@435 | 703 | switch (extension_event_index) { |
duke@435 | 704 | case EXT_EVENT_CLASS_UNLOAD : |
duke@435 | 705 | ext_callbacks->ClassUnload = callback; |
duke@435 | 706 | break; |
duke@435 | 707 | default: |
duke@435 | 708 | ShouldNotReachHere(); |
duke@435 | 709 | } |
duke@435 | 710 | |
duke@435 | 711 | // update the callback enable/disable bit |
duke@435 | 712 | jlong enabled_bits = env->env_event_enable()->_event_callback_enabled.get_bits(); |
duke@435 | 713 | jlong bit_for = JvmtiEventEnabled::bit_for(event_type); |
duke@435 | 714 | if (enabling) { |
duke@435 | 715 | enabled_bits |= bit_for; |
duke@435 | 716 | } else { |
duke@435 | 717 | enabled_bits &= ~bit_for; |
duke@435 | 718 | } |
duke@435 | 719 | env->env_event_enable()->_event_callback_enabled.set_bits(enabled_bits); |
duke@435 | 720 | |
duke@435 | 721 | recompute_enabled(); |
duke@435 | 722 | } |
duke@435 | 723 | |
duke@435 | 724 | |
duke@435 | 725 | void |
duke@435 | 726 | JvmtiEventControllerPrivate::env_initialize(JvmtiEnvBase *env) { |
duke@435 | 727 | assert(Threads::number_of_threads() == 0 || JvmtiThreadState_lock->is_locked(), "sanity check"); |
duke@435 | 728 | EC_TRACE(("JVMTI [*] # env initialize")); |
duke@435 | 729 | |
duke@435 | 730 | if (JvmtiEnvBase::is_vm_live()) { |
duke@435 | 731 | // if we didn't initialize event info already (this is a late |
duke@435 | 732 | // launched environment), do it now. |
duke@435 | 733 | event_init(); |
duke@435 | 734 | } |
duke@435 | 735 | |
duke@435 | 736 | env->initialize(); |
duke@435 | 737 | |
duke@435 | 738 | // add the JvmtiEnvThreadState to each JvmtiThreadState |
duke@435 | 739 | for (JvmtiThreadState *state = JvmtiThreadState::first(); state != NULL; state = state->next()) { |
duke@435 | 740 | state->add_env(env); |
duke@435 | 741 | assert((JvmtiEnv*)(state->env_thread_state(env)->get_env()) == env, "sanity check"); |
duke@435 | 742 | } |
duke@435 | 743 | JvmtiEventControllerPrivate::recompute_enabled(); |
duke@435 | 744 | } |
duke@435 | 745 | |
duke@435 | 746 | |
duke@435 | 747 | void |
duke@435 | 748 | JvmtiEventControllerPrivate::env_dispose(JvmtiEnvBase *env) { |
duke@435 | 749 | assert(Threads::number_of_threads() == 0 || JvmtiThreadState_lock->is_locked(), "sanity check"); |
duke@435 | 750 | EC_TRACE(("JVMTI [*] # env dispose")); |
duke@435 | 751 | |
duke@435 | 752 | // Before the environment is marked disposed, disable all events on this |
duke@435 | 753 | // environment (by zapping the callbacks). As a result, the disposed |
duke@435 | 754 | // environment will not call event handlers. |
duke@435 | 755 | set_event_callbacks(env, NULL, 0); |
duke@435 | 756 | for (jint extension_event_index = EXT_MIN_EVENT_TYPE_VAL; |
duke@435 | 757 | extension_event_index <= EXT_MAX_EVENT_TYPE_VAL; |
duke@435 | 758 | ++extension_event_index) { |
duke@435 | 759 | set_extension_event_callback(env, extension_event_index, NULL); |
duke@435 | 760 | } |
duke@435 | 761 | |
duke@435 | 762 | // Let the environment finish disposing itself. |
duke@435 | 763 | env->env_dispose(); |
duke@435 | 764 | } |
duke@435 | 765 | |
duke@435 | 766 | |
duke@435 | 767 | void |
duke@435 | 768 | JvmtiEventControllerPrivate::set_user_enabled(JvmtiEnvBase *env, JavaThread *thread, |
duke@435 | 769 | jvmtiEvent event_type, bool enabled) { |
duke@435 | 770 | assert(Threads::number_of_threads() == 0 || JvmtiThreadState_lock->is_locked(), "sanity check"); |
duke@435 | 771 | |
duke@435 | 772 | EC_TRACE(("JVMTI [%s] # user %s event %s", |
duke@435 | 773 | thread==NULL? "ALL": JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 774 | enabled? "enabled" : "disabled", JvmtiTrace::event_name(event_type))); |
duke@435 | 775 | |
duke@435 | 776 | if (thread == NULL) { |
duke@435 | 777 | env->env_event_enable()->set_user_enabled(event_type, enabled); |
duke@435 | 778 | } else { |
duke@435 | 779 | // create the thread state (if it didn't exist before) |
duke@435 | 780 | JvmtiThreadState *state = JvmtiThreadState::state_for_while_locked(thread); |
duke@435 | 781 | if (state != NULL) { |
duke@435 | 782 | state->env_thread_state(env)->event_enable()->set_user_enabled(event_type, enabled); |
duke@435 | 783 | } |
duke@435 | 784 | } |
duke@435 | 785 | recompute_enabled(); |
duke@435 | 786 | } |
duke@435 | 787 | |
duke@435 | 788 | |
duke@435 | 789 | void |
duke@435 | 790 | JvmtiEventControllerPrivate::set_frame_pop(JvmtiEnvThreadState *ets, JvmtiFramePop fpop) { |
duke@435 | 791 | EC_TRACE(("JVMTI [%s] # set frame pop - frame=%d", |
duke@435 | 792 | JvmtiTrace::safe_get_thread_name(ets->get_thread()), |
duke@435 | 793 | fpop.frame_number() )); |
duke@435 | 794 | |
duke@435 | 795 | ets->get_frame_pops()->set(fpop); |
duke@435 | 796 | recompute_thread_enabled(ets->get_thread()->jvmti_thread_state()); |
duke@435 | 797 | } |
duke@435 | 798 | |
duke@435 | 799 | |
duke@435 | 800 | void |
duke@435 | 801 | JvmtiEventControllerPrivate::clear_frame_pop(JvmtiEnvThreadState *ets, JvmtiFramePop fpop) { |
duke@435 | 802 | EC_TRACE(("JVMTI [%s] # clear frame pop - frame=%d", |
duke@435 | 803 | JvmtiTrace::safe_get_thread_name(ets->get_thread()), |
duke@435 | 804 | fpop.frame_number() )); |
duke@435 | 805 | |
duke@435 | 806 | ets->get_frame_pops()->clear(fpop); |
duke@435 | 807 | recompute_thread_enabled(ets->get_thread()->jvmti_thread_state()); |
duke@435 | 808 | } |
duke@435 | 809 | |
duke@435 | 810 | |
duke@435 | 811 | void |
duke@435 | 812 | JvmtiEventControllerPrivate::clear_to_frame_pop(JvmtiEnvThreadState *ets, JvmtiFramePop fpop) { |
duke@435 | 813 | int cleared_cnt = ets->get_frame_pops()->clear_to(fpop); |
duke@435 | 814 | |
duke@435 | 815 | EC_TRACE(("JVMTI [%s] # clear to frame pop - frame=%d, count=%d", |
duke@435 | 816 | JvmtiTrace::safe_get_thread_name(ets->get_thread()), |
duke@435 | 817 | fpop.frame_number(), |
duke@435 | 818 | cleared_cnt )); |
duke@435 | 819 | |
duke@435 | 820 | if (cleared_cnt > 0) { |
duke@435 | 821 | recompute_thread_enabled(ets->get_thread()->jvmti_thread_state()); |
duke@435 | 822 | } |
duke@435 | 823 | } |
duke@435 | 824 | |
duke@435 | 825 | void |
duke@435 | 826 | JvmtiEventControllerPrivate::change_field_watch(jvmtiEvent event_type, bool added) { |
duke@435 | 827 | int *count_addr; |
duke@435 | 828 | |
duke@435 | 829 | switch (event_type) { |
duke@435 | 830 | case JVMTI_EVENT_FIELD_MODIFICATION: |
duke@435 | 831 | count_addr = (int *)JvmtiExport::get_field_modification_count_addr(); |
duke@435 | 832 | break; |
duke@435 | 833 | case JVMTI_EVENT_FIELD_ACCESS: |
duke@435 | 834 | count_addr = (int *)JvmtiExport::get_field_access_count_addr(); |
duke@435 | 835 | break; |
duke@435 | 836 | default: |
duke@435 | 837 | assert(false, "incorrect event"); |
duke@435 | 838 | return; |
duke@435 | 839 | } |
duke@435 | 840 | |
duke@435 | 841 | EC_TRACE(("JVMTI [-] # change field watch - %s %s count=%d", |
duke@435 | 842 | event_type==JVMTI_EVENT_FIELD_MODIFICATION? "modification" : "access", |
duke@435 | 843 | added? "add" : "remove", |
duke@435 | 844 | *count_addr)); |
duke@435 | 845 | |
duke@435 | 846 | if (added) { |
duke@435 | 847 | (*count_addr)++; |
duke@435 | 848 | if (*count_addr == 1) { |
duke@435 | 849 | recompute_enabled(); |
duke@435 | 850 | } |
duke@435 | 851 | } else { |
duke@435 | 852 | if (*count_addr > 0) { |
duke@435 | 853 | (*count_addr)--; |
duke@435 | 854 | if (*count_addr == 0) { |
duke@435 | 855 | recompute_enabled(); |
duke@435 | 856 | } |
duke@435 | 857 | } else { |
duke@435 | 858 | assert(false, "field watch out of phase"); |
duke@435 | 859 | } |
duke@435 | 860 | } |
duke@435 | 861 | } |
duke@435 | 862 | |
duke@435 | 863 | void |
duke@435 | 864 | JvmtiEventControllerPrivate::event_init() { |
duke@435 | 865 | assert(JvmtiThreadState_lock->is_locked(), "sanity check"); |
duke@435 | 866 | |
duke@435 | 867 | if (_initialized) { |
duke@435 | 868 | return; |
duke@435 | 869 | } |
duke@435 | 870 | |
duke@435 | 871 | EC_TRACE(("JVMTI [-] # VM live")); |
duke@435 | 872 | |
duke@435 | 873 | #ifdef ASSERT |
duke@435 | 874 | // check that our idea and the spec's idea of threaded events match |
duke@435 | 875 | for (int ei = JVMTI_MIN_EVENT_TYPE_VAL; ei <= JVMTI_MAX_EVENT_TYPE_VAL; ++ei) { |
duke@435 | 876 | jlong bit = JvmtiEventEnabled::bit_for((jvmtiEvent)ei); |
duke@435 | 877 | assert(((THREAD_FILTERED_EVENT_BITS & bit) != 0) == JvmtiUtil::event_threaded(ei), |
duke@435 | 878 | "thread filtered event list does not match"); |
duke@435 | 879 | } |
duke@435 | 880 | #endif |
duke@435 | 881 | |
duke@435 | 882 | _initialized = true; |
duke@435 | 883 | } |
duke@435 | 884 | |
duke@435 | 885 | void |
duke@435 | 886 | JvmtiEventControllerPrivate::vm_start() { |
duke@435 | 887 | // some events are now able to be enabled (phase has changed) |
duke@435 | 888 | JvmtiEventControllerPrivate::recompute_enabled(); |
duke@435 | 889 | } |
duke@435 | 890 | |
duke@435 | 891 | |
duke@435 | 892 | void |
duke@435 | 893 | JvmtiEventControllerPrivate::vm_init() { |
duke@435 | 894 | event_init(); |
duke@435 | 895 | |
duke@435 | 896 | // all the events are now able to be enabled (phase has changed) |
duke@435 | 897 | JvmtiEventControllerPrivate::recompute_enabled(); |
duke@435 | 898 | } |
duke@435 | 899 | |
duke@435 | 900 | |
duke@435 | 901 | void |
duke@435 | 902 | JvmtiEventControllerPrivate::vm_death() { |
duke@435 | 903 | // events are disabled (phase has changed) |
duke@435 | 904 | JvmtiEventControllerPrivate::recompute_enabled(); |
duke@435 | 905 | } |
duke@435 | 906 | |
duke@435 | 907 | |
duke@435 | 908 | /////////////////////////////////////////////////////////////// |
duke@435 | 909 | // |
duke@435 | 910 | // JvmtiEventController |
duke@435 | 911 | // |
duke@435 | 912 | |
duke@435 | 913 | JvmtiEventEnabled JvmtiEventController::_universal_global_event_enabled; |
duke@435 | 914 | |
duke@435 | 915 | bool |
duke@435 | 916 | JvmtiEventController::is_global_event(jvmtiEvent event_type) { |
duke@435 | 917 | assert(is_valid_event_type(event_type), "invalid event type"); |
duke@435 | 918 | jlong bit_for = ((jlong)1) << (event_type - TOTAL_MIN_EVENT_TYPE_VAL); |
duke@435 | 919 | return((bit_for & GLOBAL_EVENT_BITS)!=0); |
duke@435 | 920 | } |
duke@435 | 921 | |
duke@435 | 922 | void |
duke@435 | 923 | JvmtiEventController::set_user_enabled(JvmtiEnvBase *env, JavaThread *thread, jvmtiEvent event_type, bool enabled) { |
duke@435 | 924 | if (Threads::number_of_threads() == 0) { |
duke@435 | 925 | // during early VM start-up locks don't exist, but we are safely single threaded, |
duke@435 | 926 | // call the functionality without holding the JvmtiThreadState_lock. |
duke@435 | 927 | JvmtiEventControllerPrivate::set_user_enabled(env, thread, event_type, enabled); |
duke@435 | 928 | } else { |
duke@435 | 929 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 930 | JvmtiEventControllerPrivate::set_user_enabled(env, thread, event_type, enabled); |
duke@435 | 931 | } |
duke@435 | 932 | } |
duke@435 | 933 | |
duke@435 | 934 | |
duke@435 | 935 | void |
duke@435 | 936 | JvmtiEventController::set_event_callbacks(JvmtiEnvBase *env, |
duke@435 | 937 | const jvmtiEventCallbacks* callbacks, |
duke@435 | 938 | jint size_of_callbacks) { |
duke@435 | 939 | if (Threads::number_of_threads() == 0) { |
duke@435 | 940 | // during early VM start-up locks don't exist, but we are safely single threaded, |
duke@435 | 941 | // call the functionality without holding the JvmtiThreadState_lock. |
duke@435 | 942 | JvmtiEventControllerPrivate::set_event_callbacks(env, callbacks, size_of_callbacks); |
duke@435 | 943 | } else { |
duke@435 | 944 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 945 | JvmtiEventControllerPrivate::set_event_callbacks(env, callbacks, size_of_callbacks); |
duke@435 | 946 | } |
duke@435 | 947 | } |
duke@435 | 948 | |
duke@435 | 949 | void |
duke@435 | 950 | JvmtiEventController::set_extension_event_callback(JvmtiEnvBase *env, |
duke@435 | 951 | jint extension_event_index, |
duke@435 | 952 | jvmtiExtensionEvent callback) { |
duke@435 | 953 | if (Threads::number_of_threads() == 0) { |
duke@435 | 954 | JvmtiEventControllerPrivate::set_extension_event_callback(env, extension_event_index, callback); |
duke@435 | 955 | } else { |
duke@435 | 956 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 957 | JvmtiEventControllerPrivate::set_extension_event_callback(env, extension_event_index, callback); |
duke@435 | 958 | } |
duke@435 | 959 | } |
duke@435 | 960 | |
duke@435 | 961 | |
duke@435 | 962 | |
duke@435 | 963 | |
duke@435 | 964 | void |
duke@435 | 965 | JvmtiEventController::set_frame_pop(JvmtiEnvThreadState *ets, JvmtiFramePop fpop) { |
duke@435 | 966 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 967 | JvmtiEventControllerPrivate::set_frame_pop(ets, fpop); |
duke@435 | 968 | } |
duke@435 | 969 | |
duke@435 | 970 | |
duke@435 | 971 | void |
duke@435 | 972 | JvmtiEventController::clear_frame_pop(JvmtiEnvThreadState *ets, JvmtiFramePop fpop) { |
duke@435 | 973 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 974 | JvmtiEventControllerPrivate::clear_frame_pop(ets, fpop); |
duke@435 | 975 | } |
duke@435 | 976 | |
duke@435 | 977 | |
duke@435 | 978 | void |
duke@435 | 979 | JvmtiEventController::clear_to_frame_pop(JvmtiEnvThreadState *ets, JvmtiFramePop fpop) { |
duke@435 | 980 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 981 | JvmtiEventControllerPrivate::clear_to_frame_pop(ets, fpop); |
duke@435 | 982 | } |
duke@435 | 983 | |
duke@435 | 984 | void |
duke@435 | 985 | JvmtiEventController::change_field_watch(jvmtiEvent event_type, bool added) { |
duke@435 | 986 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 987 | JvmtiEventControllerPrivate::change_field_watch(event_type, added); |
duke@435 | 988 | } |
duke@435 | 989 | |
duke@435 | 990 | void |
duke@435 | 991 | JvmtiEventController::thread_started(JavaThread *thread) { |
duke@435 | 992 | // operates only on the current thread |
duke@435 | 993 | // JvmtiThreadState_lock grabbed only if needed. |
duke@435 | 994 | JvmtiEventControllerPrivate::thread_started(thread); |
duke@435 | 995 | } |
duke@435 | 996 | |
duke@435 | 997 | void |
duke@435 | 998 | JvmtiEventController::thread_ended(JavaThread *thread) { |
duke@435 | 999 | // operates only on the current thread |
duke@435 | 1000 | // JvmtiThreadState_lock grabbed only if needed. |
duke@435 | 1001 | JvmtiEventControllerPrivate::thread_ended(thread); |
duke@435 | 1002 | } |
duke@435 | 1003 | |
duke@435 | 1004 | void |
duke@435 | 1005 | JvmtiEventController::env_initialize(JvmtiEnvBase *env) { |
duke@435 | 1006 | if (Threads::number_of_threads() == 0) { |
duke@435 | 1007 | // during early VM start-up locks don't exist, but we are safely single threaded, |
duke@435 | 1008 | // call the functionality without holding the JvmtiThreadState_lock. |
duke@435 | 1009 | JvmtiEventControllerPrivate::env_initialize(env); |
duke@435 | 1010 | } else { |
duke@435 | 1011 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 1012 | JvmtiEventControllerPrivate::env_initialize(env); |
duke@435 | 1013 | } |
duke@435 | 1014 | } |
duke@435 | 1015 | |
duke@435 | 1016 | void |
duke@435 | 1017 | JvmtiEventController::env_dispose(JvmtiEnvBase *env) { |
duke@435 | 1018 | if (Threads::number_of_threads() == 0) { |
duke@435 | 1019 | // during early VM start-up locks don't exist, but we are safely single threaded, |
duke@435 | 1020 | // call the functionality without holding the JvmtiThreadState_lock. |
duke@435 | 1021 | JvmtiEventControllerPrivate::env_dispose(env); |
duke@435 | 1022 | } else { |
duke@435 | 1023 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 1024 | JvmtiEventControllerPrivate::env_dispose(env); |
duke@435 | 1025 | } |
duke@435 | 1026 | } |
duke@435 | 1027 | |
duke@435 | 1028 | |
duke@435 | 1029 | void |
duke@435 | 1030 | JvmtiEventController::vm_start() { |
duke@435 | 1031 | if (JvmtiEnvBase::environments_might_exist()) { |
duke@435 | 1032 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 1033 | JvmtiEventControllerPrivate::vm_start(); |
duke@435 | 1034 | } |
duke@435 | 1035 | } |
duke@435 | 1036 | |
duke@435 | 1037 | void |
duke@435 | 1038 | JvmtiEventController::vm_init() { |
duke@435 | 1039 | if (JvmtiEnvBase::environments_might_exist()) { |
duke@435 | 1040 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 1041 | JvmtiEventControllerPrivate::vm_init(); |
duke@435 | 1042 | } |
duke@435 | 1043 | } |
duke@435 | 1044 | |
duke@435 | 1045 | void |
duke@435 | 1046 | JvmtiEventController::vm_death() { |
duke@435 | 1047 | if (JvmtiEnvBase::environments_might_exist()) { |
duke@435 | 1048 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 1049 | JvmtiEventControllerPrivate::vm_death(); |
duke@435 | 1050 | } |
duke@435 | 1051 | } |