Mercurial > hg > truffle
annotate src/share/vm/prims/jvmtiExport.cpp @ 7969:1eae78177059
Merge
| author | jiangli |
|---|---|
| date | Fri, 01 Feb 2013 15:25:37 -0500 |
| parents | 8b46b0196eb0 |
| children | 3c9bc17b9403 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 7951 | 2 * Copyright (c) 2003, 2013, 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 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "code/nmethod.hpp" | |
| 28 #include "code/pcDesc.hpp" | |
| 29 #include "code/scopeDesc.hpp" | |
| 30 #include "interpreter/interpreter.hpp" | |
| 31 #include "jvmtifiles/jvmtiEnv.hpp" | |
| 32 #include "memory/resourceArea.hpp" | |
| 33 #include "oops/objArrayKlass.hpp" | |
| 34 #include "oops/objArrayOop.hpp" | |
| 35 #include "prims/jvmtiCodeBlobEvents.hpp" | |
| 36 #include "prims/jvmtiEventController.hpp" | |
| 37 #include "prims/jvmtiEventController.inline.hpp" | |
| 38 #include "prims/jvmtiExport.hpp" | |
| 39 #include "prims/jvmtiImpl.hpp" | |
| 40 #include "prims/jvmtiManageCapabilities.hpp" | |
| 41 #include "prims/jvmtiRawMonitor.hpp" | |
| 42 #include "prims/jvmtiTagMap.hpp" | |
| 43 #include "prims/jvmtiThreadState.inline.hpp" | |
| 44 #include "runtime/arguments.hpp" | |
| 45 #include "runtime/handles.hpp" | |
| 46 #include "runtime/interfaceSupport.hpp" | |
| 47 #include "runtime/objectMonitor.hpp" | |
| 48 #include "runtime/objectMonitor.inline.hpp" | |
| 49 #include "runtime/thread.hpp" | |
| 50 #include "runtime/vframe.hpp" | |
| 51 #include "services/attachListener.hpp" | |
| 52 #include "services/serviceUtil.hpp" | |
| 53 #ifndef SERIALGC | |
| 54 #include "gc_implementation/parallelScavenge/psMarkSweep.hpp" | |
| 55 #endif | |
| 0 | 56 |
| 57 #ifdef JVMTI_TRACE | |
| 58 #define EVT_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_SENT) != 0) { SafeResourceMark rm; tty->print_cr out; } | |
| 59 #define EVT_TRIG_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_TRIGGER) != 0) { SafeResourceMark rm; tty->print_cr out; } | |
| 60 #else | |
| 61 #define EVT_TRIG_TRACE(evt,out) | |
| 62 #define EVT_TRACE(evt,out) | |
| 63 #endif | |
| 64 | |
| 65 /////////////////////////////////////////////////////////////// | |
| 66 // | |
| 67 // JvmtiEventTransition | |
| 68 // | |
| 69 // TO DO -- | |
| 70 // more handle purging | |
| 71 | |
| 72 // Use this for JavaThreads and state is _thread_in_vm. | |
| 73 class JvmtiJavaThreadEventTransition : StackObj { | |
| 74 private: | |
| 75 ResourceMark _rm; | |
| 76 ThreadToNativeFromVM _transition; | |
| 77 HandleMark _hm; | |
| 78 | |
| 79 public: | |
| 80 JvmtiJavaThreadEventTransition(JavaThread *thread) : | |
| 81 _rm(), | |
| 82 _transition(thread), | |
| 83 _hm(thread) {}; | |
| 84 }; | |
| 85 | |
| 86 // For JavaThreads which are not in _thread_in_vm state | |
| 87 // and other system threads use this. | |
| 88 class JvmtiThreadEventTransition : StackObj { | |
| 89 private: | |
| 90 ResourceMark _rm; | |
| 91 HandleMark _hm; | |
| 92 JavaThreadState _saved_state; | |
| 93 JavaThread *_jthread; | |
| 94 | |
| 95 public: | |
| 96 JvmtiThreadEventTransition(Thread *thread) : _rm(), _hm() { | |
| 97 if (thread->is_Java_thread()) { | |
| 98 _jthread = (JavaThread *)thread; | |
| 99 _saved_state = _jthread->thread_state(); | |
| 100 if (_saved_state == _thread_in_Java) { | |
| 101 ThreadStateTransition::transition_from_java(_jthread, _thread_in_native); | |
| 102 } else { | |
| 103 ThreadStateTransition::transition(_jthread, _saved_state, _thread_in_native); | |
| 104 } | |
| 105 } else { | |
| 106 _jthread = NULL; | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 ~JvmtiThreadEventTransition() { | |
| 111 if (_jthread != NULL) | |
| 112 ThreadStateTransition::transition_from_native(_jthread, _saved_state); | |
| 113 } | |
| 114 }; | |
| 115 | |
| 116 | |
| 117 /////////////////////////////////////////////////////////////// | |
| 118 // | |
| 119 // JvmtiEventMark | |
| 120 // | |
| 121 | |
| 122 class JvmtiEventMark : public StackObj { | |
| 123 private: | |
| 124 JavaThread *_thread; | |
| 125 JNIEnv* _jni_env; | |
| 126 bool _exception_detected; | |
| 127 bool _exception_caught; | |
| 128 #if 0 | |
| 129 JNIHandleBlock* _hblock; | |
| 130 #endif | |
| 131 | |
| 132 public: | |
| 133 JvmtiEventMark(JavaThread *thread) : _thread(thread), | |
| 134 _jni_env(thread->jni_environment()) { | |
| 135 #if 0 | |
| 136 _hblock = thread->active_handles(); | |
| 137 _hblock->clear_thoroughly(); // so we can be safe | |
| 138 #else | |
| 139 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 140 // for now, steal JNI push local frame code | |
| 141 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 142 // we are before an event. | |
| 143 // Save current jvmti thread exception state. | |
| 144 if (state != NULL) { | |
| 145 _exception_detected = state->is_exception_detected(); | |
| 146 _exception_caught = state->is_exception_caught(); | |
| 147 } else { | |
| 148 _exception_detected = false; | |
| 149 _exception_caught = false; | |
| 150 } | |
| 151 | |
| 152 JNIHandleBlock* old_handles = thread->active_handles(); | |
| 153 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
| 154 assert(new_handles != NULL, "should not be NULL"); | |
| 155 new_handles->set_pop_frame_link(old_handles); | |
| 156 thread->set_active_handles(new_handles); | |
| 157 #endif | |
| 158 assert(thread == JavaThread::current(), "thread must be current!"); | |
| 159 thread->frame_anchor()->make_walkable(thread); | |
| 160 }; | |
| 161 | |
| 162 ~JvmtiEventMark() { | |
| 163 #if 0 | |
| 164 _hblock->clear(); // for consistency with future correct behavior | |
| 165 #else | |
| 166 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 167 // for now, steal JNI pop local frame code | |
| 168 JNIHandleBlock* old_handles = _thread->active_handles(); | |
| 169 JNIHandleBlock* new_handles = old_handles->pop_frame_link(); | |
| 170 assert(new_handles != NULL, "should not be NULL"); | |
| 171 _thread->set_active_handles(new_handles); | |
| 172 // Note that we set the pop_frame_link to NULL explicitly, otherwise | |
| 173 // the release_block call will release the blocks. | |
| 174 old_handles->set_pop_frame_link(NULL); | |
| 175 JNIHandleBlock::release_block(old_handles, _thread); // may block | |
| 176 #endif | |
| 177 | |
| 178 JvmtiThreadState* state = _thread->jvmti_thread_state(); | |
| 179 // we are continuing after an event. | |
| 180 if (state != NULL) { | |
| 181 // Restore the jvmti thread exception state. | |
| 182 if (_exception_detected) { | |
| 183 state->set_exception_detected(); | |
| 184 } | |
| 185 if (_exception_caught) { | |
| 186 state->set_exception_caught(); | |
| 187 } | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 #if 0 | |
| 192 jobject to_jobject(oop obj) { return obj == NULL? NULL : _hblock->allocate_handle_fast(obj); } | |
| 193 #else | |
| 194 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 195 // for now, use regular make_local | |
| 196 jobject to_jobject(oop obj) { return JNIHandles::make_local(_thread,obj); } | |
| 197 #endif | |
| 198 | |
| 6983 | 199 jclass to_jclass(Klass* klass) { return (klass == NULL ? NULL : (jclass)to_jobject(klass->java_mirror())); } |
| 0 | 200 |
| 201 jmethodID to_jmethodID(methodHandle method) { return method->jmethod_id(); } | |
| 202 | |
| 203 JNIEnv* jni_env() { return _jni_env; } | |
| 204 }; | |
| 205 | |
| 206 class JvmtiThreadEventMark : public JvmtiEventMark { | |
| 207 private: | |
| 208 jthread _jt; | |
| 209 | |
| 210 public: | |
| 211 JvmtiThreadEventMark(JavaThread *thread) : | |
| 212 JvmtiEventMark(thread) { | |
| 213 _jt = (jthread)(to_jobject(thread->threadObj())); | |
| 214 }; | |
| 215 jthread jni_thread() { return _jt; } | |
| 216 }; | |
| 217 | |
| 218 class JvmtiClassEventMark : public JvmtiThreadEventMark { | |
| 219 private: | |
| 220 jclass _jc; | |
| 221 | |
| 222 public: | |
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223 JvmtiClassEventMark(JavaThread *thread, Klass* klass) : |
| 0 | 224 JvmtiThreadEventMark(thread) { |
| 225 _jc = to_jclass(klass); | |
| 226 }; | |
| 227 jclass jni_class() { return _jc; } | |
| 228 }; | |
| 229 | |
| 230 class JvmtiMethodEventMark : public JvmtiThreadEventMark { | |
| 231 private: | |
| 232 jmethodID _mid; | |
| 233 | |
| 234 public: | |
| 235 JvmtiMethodEventMark(JavaThread *thread, methodHandle method) : | |
| 236 JvmtiThreadEventMark(thread), | |
| 237 _mid(to_jmethodID(method)) {}; | |
| 238 jmethodID jni_methodID() { return _mid; } | |
| 239 }; | |
| 240 | |
| 241 class JvmtiLocationEventMark : public JvmtiMethodEventMark { | |
| 242 private: | |
| 243 jlocation _loc; | |
| 244 | |
| 245 public: | |
| 246 JvmtiLocationEventMark(JavaThread *thread, methodHandle method, address location) : | |
| 247 JvmtiMethodEventMark(thread, method), | |
| 248 _loc(location - method->code_base()) {}; | |
| 249 jlocation location() { return _loc; } | |
| 250 }; | |
| 251 | |
| 252 class JvmtiExceptionEventMark : public JvmtiLocationEventMark { | |
| 253 private: | |
| 254 jobject _exc; | |
| 255 | |
| 256 public: | |
| 257 JvmtiExceptionEventMark(JavaThread *thread, methodHandle method, address location, Handle exception) : | |
| 258 JvmtiLocationEventMark(thread, method, location), | |
| 259 _exc(to_jobject(exception())) {}; | |
| 260 jobject exception() { return _exc; } | |
| 261 }; | |
| 262 | |
| 263 class JvmtiClassFileLoadEventMark : public JvmtiThreadEventMark { | |
| 264 private: | |
| 265 const char *_class_name; | |
| 266 jobject _jloader; | |
| 267 jobject _protection_domain; | |
| 268 jclass _class_being_redefined; | |
| 269 | |
| 270 public: | |
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271 JvmtiClassFileLoadEventMark(JavaThread *thread, Symbol* name, |
| 0 | 272 Handle class_loader, Handle prot_domain, KlassHandle *class_being_redefined) : JvmtiThreadEventMark(thread) { |
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273 _class_name = name != NULL? name->as_utf8() : NULL; |
| 0 | 274 _jloader = (jobject)to_jobject(class_loader()); |
| 275 _protection_domain = (jobject)to_jobject(prot_domain()); | |
| 276 if (class_being_redefined == NULL) { | |
| 277 _class_being_redefined = NULL; | |
| 278 } else { | |
| 279 _class_being_redefined = (jclass)to_jclass((*class_being_redefined)()); | |
| 280 } | |
| 281 }; | |
| 282 const char *class_name() { | |
| 283 return _class_name; | |
| 284 } | |
| 285 jobject jloader() { | |
| 286 return _jloader; | |
| 287 } | |
| 288 jobject protection_domain() { | |
| 289 return _protection_domain; | |
| 290 } | |
| 291 jclass class_being_redefined() { | |
| 292 return _class_being_redefined; | |
| 293 } | |
| 294 }; | |
| 295 | |
| 296 ////////////////////////////////////////////////////////////////////////////// | |
| 297 | |
| 298 int JvmtiExport::_field_access_count = 0; | |
| 299 int JvmtiExport::_field_modification_count = 0; | |
| 300 | |
| 301 bool JvmtiExport::_can_access_local_variables = false; | |
| 302 bool JvmtiExport::_can_hotswap_or_post_breakpoint = false; | |
| 303 bool JvmtiExport::_can_modify_any_class = false; | |
| 304 bool JvmtiExport::_can_walk_any_space = false; | |
| 305 | |
| 306 bool JvmtiExport::_has_redefined_a_class = false; | |
| 307 bool JvmtiExport::_all_dependencies_are_recorded = false; | |
| 308 | |
| 309 // | |
| 310 // field access management | |
| 311 // | |
| 312 | |
| 313 // interpreter generator needs the address of the counter | |
| 314 address JvmtiExport::get_field_access_count_addr() { | |
| 315 // We don't grab a lock because we don't want to | |
| 316 // serialize field access between all threads. This means that a | |
| 317 // thread on another processor can see the wrong count value and | |
| 318 // may either miss making a needed call into post_field_access() | |
| 319 // or will make an unneeded call into post_field_access(). We pay | |
| 320 // this price to avoid slowing down the VM when we aren't watching | |
| 321 // field accesses. | |
| 322 // Other access/mutation safe by virtue of being in VM state. | |
| 323 return (address)(&_field_access_count); | |
| 324 } | |
| 325 | |
| 326 // | |
| 327 // field modification management | |
| 328 // | |
| 329 | |
| 330 // interpreter generator needs the address of the counter | |
| 331 address JvmtiExport::get_field_modification_count_addr() { | |
| 332 // We don't grab a lock because we don't | |
| 333 // want to serialize field modification between all threads. This | |
| 334 // means that a thread on another processor can see the wrong | |
| 335 // count value and may either miss making a needed call into | |
| 336 // post_field_modification() or will make an unneeded call into | |
| 337 // post_field_modification(). We pay this price to avoid slowing | |
| 338 // down the VM when we aren't watching field modifications. | |
| 339 // Other access/mutation safe by virtue of being in VM state. | |
| 340 return (address)(&_field_modification_count); | |
| 341 } | |
| 342 | |
| 343 | |
| 344 /////////////////////////////////////////////////////////////// | |
| 345 // Functions needed by java.lang.instrument for starting up javaagent. | |
| 346 /////////////////////////////////////////////////////////////// | |
| 347 | |
| 348 jint | |
| 349 JvmtiExport::get_jvmti_interface(JavaVM *jvm, void **penv, jint version) { | |
| 1121 | 350 // The JVMTI_VERSION_INTERFACE_JVMTI part of the version number |
| 351 // has already been validated in JNI GetEnv(). | |
| 352 int major, minor, micro; | |
| 353 | |
| 354 // micro version doesn't matter here (yet?) | |
| 355 decode_version_values(version, &major, &minor, µ); | |
| 356 switch (major) { | |
| 1988 | 357 case 1: |
| 1121 | 358 switch (minor) { |
| 1988 | 359 case 0: // version 1.0.<micro> is recognized |
| 360 case 1: // version 1.1.<micro> is recognized | |
| 361 case 2: // version 1.2.<micro> is recognized | |
| 1121 | 362 break; |
| 363 | |
| 1988 | 364 default: |
| 1121 | 365 return JNI_EVERSION; // unsupported minor version number |
| 366 } | |
| 367 break; | |
| 1988 | 368 default: |
| 1121 | 369 return JNI_EVERSION; // unsupported major version number |
| 370 } | |
| 0 | 371 |
| 372 if (JvmtiEnv::get_phase() == JVMTI_PHASE_LIVE) { | |
| 373 JavaThread* current_thread = (JavaThread*) ThreadLocalStorage::thread(); | |
| 374 // transition code: native to VM | |
| 375 ThreadInVMfromNative __tiv(current_thread); | |
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376 VM_ENTRY_BASE(jvmtiEnv*, JvmtiExport::get_jvmti_interface, current_thread) |
| 0 | 377 debug_only(VMNativeEntryWrapper __vew;) |
| 378 | |
| 1121 | 379 JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
| 0 | 380 *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
| 381 return JNI_OK; | |
| 382 | |
| 383 } else if (JvmtiEnv::get_phase() == JVMTI_PHASE_ONLOAD) { | |
| 384 // not live, no thread to transition | |
| 1121 | 385 JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
| 0 | 386 *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
| 387 return JNI_OK; | |
| 388 | |
| 389 } else { | |
| 390 // Called at the wrong time | |
| 391 *penv = NULL; | |
| 392 return JNI_EDETACHED; | |
| 393 } | |
| 394 } | |
| 395 | |
| 1121 | 396 |
| 397 void | |
| 398 JvmtiExport::decode_version_values(jint version, int * major, int * minor, | |
| 399 int * micro) { | |
| 400 *major = (version & JVMTI_VERSION_MASK_MAJOR) >> JVMTI_VERSION_SHIFT_MAJOR; | |
| 401 *minor = (version & JVMTI_VERSION_MASK_MINOR) >> JVMTI_VERSION_SHIFT_MINOR; | |
| 402 *micro = (version & JVMTI_VERSION_MASK_MICRO) >> JVMTI_VERSION_SHIFT_MICRO; | |
| 403 } | |
| 404 | |
| 0 | 405 void JvmtiExport::enter_primordial_phase() { |
| 406 JvmtiEnvBase::set_phase(JVMTI_PHASE_PRIMORDIAL); | |
| 407 } | |
| 408 | |
| 409 void JvmtiExport::enter_start_phase() { | |
| 410 JvmtiManageCapabilities::recompute_always_capabilities(); | |
| 411 JvmtiEnvBase::set_phase(JVMTI_PHASE_START); | |
| 412 } | |
| 413 | |
| 414 void JvmtiExport::enter_onload_phase() { | |
| 415 JvmtiEnvBase::set_phase(JVMTI_PHASE_ONLOAD); | |
| 416 } | |
| 417 | |
| 418 void JvmtiExport::enter_live_phase() { | |
| 419 JvmtiEnvBase::set_phase(JVMTI_PHASE_LIVE); | |
| 420 } | |
| 421 | |
| 422 // | |
| 423 // JVMTI events that the VM posts to the debugger and also startup agent | |
| 424 // and call the agent's premain() for java.lang.instrument. | |
| 425 // | |
| 426 | |
| 427 void JvmtiExport::post_vm_start() { | |
| 428 EVT_TRIG_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Trg VM start event triggered" )); | |
| 429 | |
| 430 // can now enable some events | |
| 431 JvmtiEventController::vm_start(); | |
| 432 | |
| 433 JvmtiEnvIterator it; | |
| 434 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 435 if (env->is_enabled(JVMTI_EVENT_VM_START)) { | |
| 436 EVT_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Evt VM start event sent" )); | |
| 437 | |
| 438 JavaThread *thread = JavaThread::current(); | |
| 439 JvmtiThreadEventMark jem(thread); | |
| 440 JvmtiJavaThreadEventTransition jet(thread); | |
| 441 jvmtiEventVMStart callback = env->callbacks()->VMStart; | |
| 442 if (callback != NULL) { | |
| 443 (*callback)(env->jvmti_external(), jem.jni_env()); | |
| 444 } | |
| 445 } | |
| 446 } | |
| 447 } | |
| 448 | |
| 449 | |
| 450 void JvmtiExport::post_vm_initialized() { | |
| 451 EVT_TRIG_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Trg VM init event triggered" )); | |
| 452 | |
| 453 // can now enable events | |
| 454 JvmtiEventController::vm_init(); | |
| 455 | |
| 456 JvmtiEnvIterator it; | |
| 457 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 458 if (env->is_enabled(JVMTI_EVENT_VM_INIT)) { | |
| 459 EVT_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Evt VM init event sent" )); | |
| 460 | |
| 461 JavaThread *thread = JavaThread::current(); | |
| 462 JvmtiThreadEventMark jem(thread); | |
| 463 JvmtiJavaThreadEventTransition jet(thread); | |
| 464 jvmtiEventVMInit callback = env->callbacks()->VMInit; | |
| 465 if (callback != NULL) { | |
| 466 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 467 } | |
| 468 } | |
| 469 } | |
| 470 } | |
| 471 | |
| 472 | |
| 473 void JvmtiExport::post_vm_death() { | |
| 474 EVT_TRIG_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Trg VM death event triggered" )); | |
| 475 | |
| 476 JvmtiEnvIterator it; | |
| 477 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 478 if (env->is_enabled(JVMTI_EVENT_VM_DEATH)) { | |
| 479 EVT_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Evt VM death event sent" )); | |
| 480 | |
| 481 JavaThread *thread = JavaThread::current(); | |
| 482 JvmtiEventMark jem(thread); | |
| 483 JvmtiJavaThreadEventTransition jet(thread); | |
| 484 jvmtiEventVMDeath callback = env->callbacks()->VMDeath; | |
| 485 if (callback != NULL) { | |
| 486 (*callback)(env->jvmti_external(), jem.jni_env()); | |
| 487 } | |
| 488 } | |
| 489 } | |
| 490 | |
| 491 JvmtiEnvBase::set_phase(JVMTI_PHASE_DEAD); | |
| 492 JvmtiEventController::vm_death(); | |
| 493 } | |
| 494 | |
| 495 char** | |
| 496 JvmtiExport::get_all_native_method_prefixes(int* count_ptr) { | |
| 497 // Have to grab JVMTI thread state lock to be sure environment doesn't | |
| 498 // go away while we iterate them. No locks during VM bring-up. | |
| 499 if (Threads::number_of_threads() == 0 || SafepointSynchronize::is_at_safepoint()) { | |
| 500 return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); | |
| 501 } else { | |
| 502 MutexLocker mu(JvmtiThreadState_lock); | |
| 503 return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); | |
| 504 } | |
| 505 } | |
| 506 | |
| 507 class JvmtiClassFileLoadHookPoster : public StackObj { | |
| 508 private: | |
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509 Symbol* _h_name; |
| 0 | 510 Handle _class_loader; |
| 511 Handle _h_protection_domain; | |
| 512 unsigned char ** _data_ptr; | |
| 513 unsigned char ** _end_ptr; | |
| 514 JavaThread * _thread; | |
| 515 jint _curr_len; | |
| 516 unsigned char * _curr_data; | |
| 517 JvmtiEnv * _curr_env; | |
| 518 jint * _cached_length_ptr; | |
| 519 unsigned char ** _cached_data_ptr; | |
| 520 JvmtiThreadState * _state; | |
| 521 KlassHandle * _h_class_being_redefined; | |
| 522 JvmtiClassLoadKind _load_kind; | |
| 523 | |
| 524 public: | |
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525 inline JvmtiClassFileLoadHookPoster(Symbol* h_name, Handle class_loader, |
| 0 | 526 Handle h_protection_domain, |
| 527 unsigned char **data_ptr, unsigned char **end_ptr, | |
| 528 unsigned char **cached_data_ptr, | |
| 529 jint *cached_length_ptr) { | |
| 530 _h_name = h_name; | |
| 531 _class_loader = class_loader; | |
| 532 _h_protection_domain = h_protection_domain; | |
| 533 _data_ptr = data_ptr; | |
| 534 _end_ptr = end_ptr; | |
| 535 _thread = JavaThread::current(); | |
| 536 _curr_len = *end_ptr - *data_ptr; | |
| 537 _curr_data = *data_ptr; | |
| 538 _curr_env = NULL; | |
| 539 _cached_length_ptr = cached_length_ptr; | |
| 540 _cached_data_ptr = cached_data_ptr; | |
| 541 | |
| 542 _state = _thread->jvmti_thread_state(); | |
| 543 if (_state != NULL) { | |
| 544 _h_class_being_redefined = _state->get_class_being_redefined(); | |
| 545 _load_kind = _state->get_class_load_kind(); | |
| 546 // Clear class_being_redefined flag here. The action | |
| 547 // from agent handler could generate a new class file load | |
| 548 // hook event and if it is not cleared the new event generated | |
| 549 // from regular class file load could have this stale redefined | |
| 550 // class handle info. | |
| 551 _state->clear_class_being_redefined(); | |
| 552 } else { | |
| 553 // redefine and retransform will always set the thread state | |
| 554 _h_class_being_redefined = (KlassHandle *) NULL; | |
| 555 _load_kind = jvmti_class_load_kind_load; | |
| 556 } | |
| 557 } | |
| 558 | |
| 559 void post() { | |
| 560 // EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 561 // ("JVMTI [%s] class file load hook event triggered", | |
| 562 // JvmtiTrace::safe_get_thread_name(_thread))); | |
| 563 post_all_envs(); | |
| 564 copy_modified_data(); | |
| 565 } | |
| 566 | |
| 567 private: | |
| 568 void post_all_envs() { | |
| 569 if (_load_kind != jvmti_class_load_kind_retransform) { | |
| 570 // for class load and redefine, | |
| 571 // call the non-retransformable agents | |
| 572 JvmtiEnvIterator it; | |
| 573 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 574 if (!env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 575 // non-retransformable agents cannot retransform back, | |
| 576 // so no need to cache the original class file bytes | |
| 577 post_to_env(env, false); | |
| 578 } | |
| 579 } | |
| 580 } | |
| 581 JvmtiEnvIterator it; | |
| 582 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 583 // retransformable agents get all events | |
| 584 if (env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 585 // retransformable agents need to cache the original class file | |
| 586 // bytes if changes are made via the ClassFileLoadHook | |
| 587 post_to_env(env, true); | |
| 588 } | |
| 589 } | |
| 590 } | |
| 591 | |
| 592 void post_to_env(JvmtiEnv* env, bool caching_needed) { | |
| 593 unsigned char *new_data = NULL; | |
| 594 jint new_len = 0; | |
| 595 // EVT_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 596 // ("JVMTI [%s] class file load hook event sent %s data_ptr = %d, data_len = %d", | |
| 597 // JvmtiTrace::safe_get_thread_name(_thread), | |
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598 // _h_name == NULL ? "NULL" : _h_name->as_utf8(), |
| 0 | 599 // _curr_data, _curr_len )); |
| 600 JvmtiClassFileLoadEventMark jem(_thread, _h_name, _class_loader, | |
| 601 _h_protection_domain, | |
| 602 _h_class_being_redefined); | |
| 603 JvmtiJavaThreadEventTransition jet(_thread); | |
| 604 JNIEnv* jni_env = (JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL)? | |
| 605 NULL : jem.jni_env(); | |
| 606 jvmtiEventClassFileLoadHook callback = env->callbacks()->ClassFileLoadHook; | |
| 607 if (callback != NULL) { | |
| 608 (*callback)(env->jvmti_external(), jni_env, | |
| 609 jem.class_being_redefined(), | |
| 610 jem.jloader(), jem.class_name(), | |
| 611 jem.protection_domain(), | |
| 612 _curr_len, _curr_data, | |
| 613 &new_len, &new_data); | |
| 614 } | |
| 615 if (new_data != NULL) { | |
| 616 // this agent has modified class data. | |
| 617 if (caching_needed && *_cached_data_ptr == NULL) { | |
| 618 // data has been changed by the new retransformable agent | |
| 619 // and it hasn't already been cached, cache it | |
| 6197 | 620 *_cached_data_ptr = (unsigned char *)os::malloc(_curr_len, mtInternal); |
| 0 | 621 memcpy(*_cached_data_ptr, _curr_data, _curr_len); |
| 622 *_cached_length_ptr = _curr_len; | |
| 623 } | |
| 624 | |
| 625 if (_curr_data != *_data_ptr) { | |
| 626 // curr_data is previous agent modified class data. | |
| 627 // And this has been changed by the new agent so | |
| 628 // we can delete it now. | |
| 629 _curr_env->Deallocate(_curr_data); | |
| 630 } | |
| 631 | |
| 632 // Class file data has changed by the current agent. | |
| 633 _curr_data = new_data; | |
| 634 _curr_len = new_len; | |
| 635 // Save the current agent env we need this to deallocate the | |
| 636 // memory allocated by this agent. | |
| 637 _curr_env = env; | |
| 638 } | |
| 639 } | |
| 640 | |
| 641 void copy_modified_data() { | |
| 642 // if one of the agent has modified class file data. | |
| 643 // Copy modified class data to new resources array. | |
| 644 if (_curr_data != *_data_ptr) { | |
| 645 *_data_ptr = NEW_RESOURCE_ARRAY(u1, _curr_len); | |
| 646 memcpy(*_data_ptr, _curr_data, _curr_len); | |
| 647 *_end_ptr = *_data_ptr + _curr_len; | |
| 648 _curr_env->Deallocate(_curr_data); | |
| 649 } | |
| 650 } | |
| 651 }; | |
| 652 | |
| 653 bool JvmtiExport::_should_post_class_file_load_hook = false; | |
| 654 | |
| 655 // this entry is for class file load hook on class load, redefine and retransform | |
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656 void JvmtiExport::post_class_file_load_hook(Symbol* h_name, |
| 0 | 657 Handle class_loader, |
| 658 Handle h_protection_domain, | |
| 659 unsigned char **data_ptr, | |
| 660 unsigned char **end_ptr, | |
| 661 unsigned char **cached_data_ptr, | |
| 662 jint *cached_length_ptr) { | |
| 663 JvmtiClassFileLoadHookPoster poster(h_name, class_loader, | |
| 664 h_protection_domain, | |
| 665 data_ptr, end_ptr, | |
| 666 cached_data_ptr, | |
| 667 cached_length_ptr); | |
| 668 poster.post(); | |
| 669 } | |
| 670 | |
| 671 void JvmtiExport::report_unsupported(bool on) { | |
| 672 // If any JVMTI service is turned on, we need to exit before native code | |
| 673 // tries to access nonexistant services. | |
| 674 if (on) { | |
| 675 vm_exit_during_initialization("Java Kernel does not support JVMTI."); | |
| 676 } | |
| 677 } | |
| 678 | |
| 679 | |
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680 static inline Klass* oop_to_klass(oop obj) { |
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681 Klass* k = obj->klass(); |
| 0 | 682 |
| 683 // if the object is a java.lang.Class then return the java mirror | |
| 1142 | 684 if (k == SystemDictionary::Class_klass()) { |
| 0 | 685 if (!java_lang_Class::is_primitive(obj)) { |
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686 k = java_lang_Class::as_Klass(obj); |
| 0 | 687 assert(k != NULL, "class for non-primitive mirror must exist"); |
| 688 } | |
| 689 } | |
| 690 return k; | |
| 691 } | |
| 692 | |
| 693 class JvmtiVMObjectAllocEventMark : public JvmtiClassEventMark { | |
| 694 private: | |
| 695 jobject _jobj; | |
| 696 jlong _size; | |
| 697 public: | |
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698 JvmtiVMObjectAllocEventMark(JavaThread *thread, oop obj) : JvmtiClassEventMark(thread, oop_to_klass(obj)) { |
| 0 | 699 _jobj = (jobject)to_jobject(obj); |
| 700 _size = obj->size() * wordSize; | |
| 701 }; | |
| 702 jobject jni_jobject() { return _jobj; } | |
| 703 jlong size() { return _size; } | |
| 704 }; | |
| 705 | |
| 706 class JvmtiCompiledMethodLoadEventMark : public JvmtiMethodEventMark { | |
| 707 private: | |
| 708 jint _code_size; | |
| 709 const void *_code_data; | |
| 710 jint _map_length; | |
| 711 jvmtiAddrLocationMap *_map; | |
| 712 const void *_compile_info; | |
| 713 public: | |
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714 JvmtiCompiledMethodLoadEventMark(JavaThread *thread, nmethod *nm, void* compile_info_ptr = NULL) |
| 0 | 715 : JvmtiMethodEventMark(thread,methodHandle(thread, nm->method())) { |
| 1748 | 716 _code_data = nm->insts_begin(); |
| 717 _code_size = nm->insts_size(); | |
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718 _compile_info = compile_info_ptr; // Set void pointer of compiledMethodLoad Event. Default value is NULL. |
| 0 | 719 JvmtiCodeBlobEvents::build_jvmti_addr_location_map(nm, &_map, &_map_length); |
| 720 } | |
| 721 ~JvmtiCompiledMethodLoadEventMark() { | |
| 6197 | 722 FREE_C_HEAP_ARRAY(jvmtiAddrLocationMap, _map, mtInternal); |
| 0 | 723 } |
| 724 | |
| 725 jint code_size() { return _code_size; } | |
| 726 const void *code_data() { return _code_data; } | |
| 727 jint map_length() { return _map_length; } | |
| 728 const jvmtiAddrLocationMap* map() { return _map; } | |
| 729 const void *compile_info() { return _compile_info; } | |
| 730 }; | |
| 731 | |
| 732 | |
| 733 | |
| 734 class JvmtiMonitorEventMark : public JvmtiThreadEventMark { | |
| 735 private: | |
| 736 jobject _jobj; | |
| 737 public: | |
| 738 JvmtiMonitorEventMark(JavaThread *thread, oop object) | |
| 739 : JvmtiThreadEventMark(thread){ | |
| 740 _jobj = to_jobject(object); | |
| 741 } | |
| 742 jobject jni_object() { return _jobj; } | |
| 743 }; | |
| 744 | |
| 745 /////////////////////////////////////////////////////////////// | |
| 746 // | |
| 747 // pending CompiledMethodUnload support | |
| 748 // | |
| 749 | |
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750 void JvmtiExport::post_compiled_method_unload( |
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751 jmethodID method, const void *code_begin) { |
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752 JavaThread* thread = JavaThread::current(); |
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753 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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754 ("JVMTI [%s] method compile unload event triggered", |
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755 JvmtiTrace::safe_get_thread_name(thread))); |
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756 |
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757 // post the event for each environment that has this event enabled. |
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758 JvmtiEnvIterator it; |
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759 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
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760 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_UNLOAD)) { |
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761 |
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762 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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763 ("JVMTI [%s] class compile method unload event sent jmethodID " PTR_FORMAT, |
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764 JvmtiTrace::safe_get_thread_name(thread), method)); |
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765 |
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766 ResourceMark rm(thread); |
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767 |
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768 JvmtiEventMark jem(thread); |
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769 JvmtiJavaThreadEventTransition jet(thread); |
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770 jvmtiEventCompiledMethodUnload callback = env->callbacks()->CompiledMethodUnload; |
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771 if (callback != NULL) { |
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772 (*callback)(env->jvmti_external(), method, code_begin); |
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773 } |
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774 } |
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775 } |
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776 } |
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777 |
| 0 | 778 /////////////////////////////////////////////////////////////// |
| 779 // | |
| 780 // JvmtiExport | |
| 781 // | |
| 782 | |
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783 void JvmtiExport::post_raw_breakpoint(JavaThread *thread, Method* method, address location) { |
| 0 | 784 HandleMark hm(thread); |
| 785 methodHandle mh(thread, method); | |
| 786 | |
| 787 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 788 if (state == NULL) { | |
| 789 return; | |
| 790 } | |
| 791 EVT_TRIG_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Trg Breakpoint triggered", | |
| 792 JvmtiTrace::safe_get_thread_name(thread))); | |
| 793 JvmtiEnvThreadStateIterator it(state); | |
| 794 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 795 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_BREAKPOINT); | |
| 796 if (!ets->breakpoint_posted() && ets->is_enabled(JVMTI_EVENT_BREAKPOINT)) { | |
| 797 ThreadState old_os_state = thread->osthread()->get_state(); | |
| 798 thread->osthread()->set_state(BREAKPOINTED); | |
| 799 EVT_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Evt Breakpoint sent %s.%s @ %d", | |
| 800 JvmtiTrace::safe_get_thread_name(thread), | |
| 801 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 802 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 803 location - mh()->code_base() )); | |
| 804 | |
| 805 JvmtiEnv *env = ets->get_env(); | |
| 806 JvmtiLocationEventMark jem(thread, mh, location); | |
| 807 JvmtiJavaThreadEventTransition jet(thread); | |
| 808 jvmtiEventBreakpoint callback = env->callbacks()->Breakpoint; | |
| 809 if (callback != NULL) { | |
| 810 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 811 jem.jni_methodID(), jem.location()); | |
| 812 } | |
| 813 | |
| 814 ets->set_breakpoint_posted(); | |
| 815 thread->osthread()->set_state(old_os_state); | |
| 816 } | |
| 817 } | |
| 818 } | |
| 819 | |
| 820 ////////////////////////////////////////////////////////////////////////////// | |
| 821 | |
| 822 bool JvmtiExport::_can_get_source_debug_extension = false; | |
| 823 bool JvmtiExport::_can_maintain_original_method_order = false; | |
| 824 bool JvmtiExport::_can_post_interpreter_events = false; | |
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825 bool JvmtiExport::_can_post_on_exceptions = false; |
| 0 | 826 bool JvmtiExport::_can_post_breakpoint = false; |
| 827 bool JvmtiExport::_can_post_field_access = false; | |
| 828 bool JvmtiExport::_can_post_field_modification = false; | |
| 829 bool JvmtiExport::_can_post_method_entry = false; | |
| 830 bool JvmtiExport::_can_post_method_exit = false; | |
| 831 bool JvmtiExport::_can_pop_frame = false; | |
| 832 bool JvmtiExport::_can_force_early_return = false; | |
| 833 | |
| 834 bool JvmtiExport::_should_post_single_step = false; | |
| 835 bool JvmtiExport::_should_post_field_access = false; | |
| 836 bool JvmtiExport::_should_post_field_modification = false; | |
| 837 bool JvmtiExport::_should_post_class_load = false; | |
| 838 bool JvmtiExport::_should_post_class_prepare = false; | |
| 839 bool JvmtiExport::_should_post_class_unload = false; | |
| 840 bool JvmtiExport::_should_post_thread_life = false; | |
| 841 bool JvmtiExport::_should_clean_up_heap_objects = false; | |
| 842 bool JvmtiExport::_should_post_native_method_bind = false; | |
| 843 bool JvmtiExport::_should_post_dynamic_code_generated = false; | |
| 844 bool JvmtiExport::_should_post_data_dump = false; | |
| 845 bool JvmtiExport::_should_post_compiled_method_load = false; | |
| 846 bool JvmtiExport::_should_post_compiled_method_unload = false; | |
| 847 bool JvmtiExport::_should_post_monitor_contended_enter = false; | |
| 848 bool JvmtiExport::_should_post_monitor_contended_entered = false; | |
| 849 bool JvmtiExport::_should_post_monitor_wait = false; | |
| 850 bool JvmtiExport::_should_post_monitor_waited = false; | |
| 851 bool JvmtiExport::_should_post_garbage_collection_start = false; | |
| 852 bool JvmtiExport::_should_post_garbage_collection_finish = false; | |
| 853 bool JvmtiExport::_should_post_object_free = false; | |
| 854 bool JvmtiExport::_should_post_resource_exhausted = false; | |
| 855 bool JvmtiExport::_should_post_vm_object_alloc = false; | |
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856 bool JvmtiExport::_should_post_on_exceptions = false; |
| 0 | 857 |
| 858 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 859 | |
| 860 | |
| 861 // | |
| 862 // JVMTI single step management | |
| 863 // | |
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864 void JvmtiExport::at_single_stepping_point(JavaThread *thread, Method* method, address location) { |
| 0 | 865 assert(JvmtiExport::should_post_single_step(), "must be single stepping"); |
| 866 | |
| 867 HandleMark hm(thread); | |
| 868 methodHandle mh(thread, method); | |
| 869 | |
| 870 // update information about current location and post a step event | |
| 871 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 872 if (state == NULL) { | |
| 873 return; | |
| 874 } | |
| 875 EVT_TRIG_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Trg Single Step triggered", | |
| 876 JvmtiTrace::safe_get_thread_name(thread))); | |
| 877 if (!state->hide_single_stepping()) { | |
| 878 if (state->is_pending_step_for_popframe()) { | |
| 879 state->process_pending_step_for_popframe(); | |
| 880 } | |
| 881 if (state->is_pending_step_for_earlyret()) { | |
| 882 state->process_pending_step_for_earlyret(); | |
| 883 } | |
| 884 JvmtiExport::post_single_step(thread, mh(), location); | |
| 885 } | |
| 886 } | |
| 887 | |
| 888 | |
| 889 void JvmtiExport::expose_single_stepping(JavaThread *thread) { | |
| 890 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 891 if (state != NULL) { | |
| 892 state->clear_hide_single_stepping(); | |
| 893 } | |
| 894 } | |
| 895 | |
| 896 | |
| 897 bool JvmtiExport::hide_single_stepping(JavaThread *thread) { | |
| 898 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 899 if (state != NULL && state->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 900 state->set_hide_single_stepping(); | |
| 901 return true; | |
| 902 } else { | |
| 903 return false; | |
| 904 } | |
| 905 } | |
| 906 | |
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907 void JvmtiExport::post_class_load(JavaThread *thread, Klass* klass) { |
| 0 | 908 HandleMark hm(thread); |
| 909 KlassHandle kh(thread, klass); | |
| 910 | |
| 911 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Trg Class Load triggered", | |
| 912 JvmtiTrace::safe_get_thread_name(thread))); | |
| 913 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 914 if (state == NULL) { | |
| 915 return; | |
| 916 } | |
| 917 JvmtiEnvThreadStateIterator it(state); | |
| 918 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 919 if (ets->is_enabled(JVMTI_EVENT_CLASS_LOAD)) { | |
| 920 EVT_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Evt Class Load sent %s", | |
| 921 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 922 kh()==NULL? "NULL" : kh()->external_name() )); |
| 0 | 923 |
| 924 JvmtiEnv *env = ets->get_env(); | |
| 925 JvmtiClassEventMark jem(thread, kh()); | |
| 926 JvmtiJavaThreadEventTransition jet(thread); | |
| 927 jvmtiEventClassLoad callback = env->callbacks()->ClassLoad; | |
| 928 if (callback != NULL) { | |
| 929 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 930 } | |
| 931 } | |
| 932 } | |
| 933 } | |
| 934 | |
| 935 | |
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936 void JvmtiExport::post_class_prepare(JavaThread *thread, Klass* klass) { |
| 0 | 937 HandleMark hm(thread); |
| 938 KlassHandle kh(thread, klass); | |
| 939 | |
| 940 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Trg Class Prepare triggered", | |
| 941 JvmtiTrace::safe_get_thread_name(thread))); | |
| 942 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 943 if (state == NULL) { | |
| 944 return; | |
| 945 } | |
| 946 JvmtiEnvThreadStateIterator it(state); | |
| 947 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 948 if (ets->is_enabled(JVMTI_EVENT_CLASS_PREPARE)) { | |
| 949 EVT_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Evt Class Prepare sent %s", | |
| 950 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 951 kh()==NULL? "NULL" : kh()->external_name() )); |
| 0 | 952 |
| 953 JvmtiEnv *env = ets->get_env(); | |
| 954 JvmtiClassEventMark jem(thread, kh()); | |
| 955 JvmtiJavaThreadEventTransition jet(thread); | |
| 956 jvmtiEventClassPrepare callback = env->callbacks()->ClassPrepare; | |
| 957 if (callback != NULL) { | |
| 958 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 959 } | |
| 960 } | |
| 961 } | |
| 962 } | |
| 963 | |
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964 void JvmtiExport::post_class_unload(Klass* klass) { |
| 0 | 965 Thread *thread = Thread::current(); |
| 966 HandleMark hm(thread); | |
| 967 KlassHandle kh(thread, klass); | |
| 968 | |
| 969 EVT_TRIG_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Trg Class Unload triggered" )); | |
| 970 if (JvmtiEventController::is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 971 assert(thread->is_VM_thread(), "wrong thread"); | |
| 972 | |
| 973 // get JavaThread for whom we are proxy | |
| 974 JavaThread *real_thread = | |
| 975 (JavaThread *)((VMThread *)thread)->vm_operation()->calling_thread(); | |
| 976 | |
| 977 JvmtiEnvIterator it; | |
| 978 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 979 if (env->is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 980 EVT_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Evt Class Unload sent %s", | |
| 6983 | 981 kh()==NULL? "NULL" : kh()->external_name() )); |
| 0 | 982 |
| 983 // do everything manually, since this is a proxy - needs special care | |
| 984 JNIEnv* jni_env = real_thread->jni_environment(); | |
| 985 jthread jt = (jthread)JNIHandles::make_local(real_thread, real_thread->threadObj()); | |
| 6983 | 986 jclass jk = (jclass)JNIHandles::make_local(real_thread, kh()->java_mirror()); |
| 0 | 987 |
| 988 // Before we call the JVMTI agent, we have to set the state in the | |
| 989 // thread for which we are proxying. | |
| 990 JavaThreadState prev_state = real_thread->thread_state(); | |
| 991 assert(prev_state == _thread_blocked, "JavaThread should be at safepoint"); | |
| 992 real_thread->set_thread_state(_thread_in_native); | |
| 993 | |
| 994 jvmtiExtensionEvent callback = env->ext_callbacks()->ClassUnload; | |
| 995 if (callback != NULL) { | |
| 996 (*callback)(env->jvmti_external(), jni_env, jt, jk); | |
| 997 } | |
| 998 | |
| 999 assert(real_thread->thread_state() == _thread_in_native, | |
| 1000 "JavaThread should be in native"); | |
| 1001 real_thread->set_thread_state(prev_state); | |
| 1002 | |
| 1003 JNIHandles::destroy_local(jk); | |
| 1004 JNIHandles::destroy_local(jt); | |
| 1005 } | |
| 1006 } | |
| 1007 } | |
| 1008 } | |
| 1009 | |
| 1010 | |
| 1011 void JvmtiExport::post_thread_start(JavaThread *thread) { | |
| 1012 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1013 | |
| 1014 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Trg Thread Start event triggered", | |
| 1015 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1016 | |
| 1017 // do JVMTI thread initialization (if needed) | |
| 1018 JvmtiEventController::thread_started(thread); | |
| 1019 | |
| 1020 // Do not post thread start event for hidden java thread. | |
| 1021 if (JvmtiEventController::is_enabled(JVMTI_EVENT_THREAD_START) && | |
| 1022 !thread->is_hidden_from_external_view()) { | |
| 1023 JvmtiEnvIterator it; | |
| 1024 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1025 if (env->is_enabled(JVMTI_EVENT_THREAD_START)) { | |
| 1026 EVT_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Evt Thread Start event sent", | |
| 1027 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1028 | |
| 1029 JvmtiThreadEventMark jem(thread); | |
| 1030 JvmtiJavaThreadEventTransition jet(thread); | |
| 1031 jvmtiEventThreadStart callback = env->callbacks()->ThreadStart; | |
| 1032 if (callback != NULL) { | |
| 1033 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1034 } | |
| 1035 } | |
| 1036 } | |
| 1037 } | |
| 1038 } | |
| 1039 | |
| 1040 | |
| 1041 void JvmtiExport::post_thread_end(JavaThread *thread) { | |
| 1042 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Trg Thread End event triggered", | |
| 1043 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1044 | |
| 1045 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1046 if (state == NULL) { | |
| 1047 return; | |
| 1048 } | |
| 1049 | |
| 1050 // Do not post thread end event for hidden java thread. | |
| 1051 if (state->is_enabled(JVMTI_EVENT_THREAD_END) && | |
| 1052 !thread->is_hidden_from_external_view()) { | |
| 1053 | |
| 1054 JvmtiEnvThreadStateIterator it(state); | |
| 1055 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1056 if (ets->is_enabled(JVMTI_EVENT_THREAD_END)) { | |
| 1057 EVT_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Evt Thread End event sent", | |
| 1058 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1059 | |
| 1060 JvmtiEnv *env = ets->get_env(); | |
| 1061 JvmtiThreadEventMark jem(thread); | |
| 1062 JvmtiJavaThreadEventTransition jet(thread); | |
| 1063 jvmtiEventThreadEnd callback = env->callbacks()->ThreadEnd; | |
| 1064 if (callback != NULL) { | |
| 1065 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1066 } | |
| 1067 } | |
| 1068 } | |
| 1069 } | |
| 1070 } | |
| 1071 | |
| 1072 void JvmtiExport::post_object_free(JvmtiEnv* env, jlong tag) { | |
| 1073 assert(SafepointSynchronize::is_at_safepoint(), "must be executed at safepoint"); | |
| 1074 assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE), "checking"); | |
| 1075 | |
| 1076 EVT_TRIG_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Trg Object Free triggered" )); | |
| 1077 EVT_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Evt Object Free sent")); | |
| 1078 | |
| 1079 jvmtiEventObjectFree callback = env->callbacks()->ObjectFree; | |
| 1080 if (callback != NULL) { | |
| 1081 (*callback)(env->jvmti_external(), tag); | |
| 1082 } | |
| 1083 } | |
| 1084 | |
| 1085 void JvmtiExport::post_resource_exhausted(jint resource_exhausted_flags, const char* description) { | |
| 1086 EVT_TRIG_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Trg resource exhausted event triggered" )); | |
| 1087 | |
| 1088 JvmtiEnvIterator it; | |
| 1089 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1090 if (env->is_enabled(JVMTI_EVENT_RESOURCE_EXHAUSTED)) { | |
| 1091 EVT_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Evt resource exhausted event sent" )); | |
| 1092 | |
| 1093 JavaThread *thread = JavaThread::current(); | |
| 1094 JvmtiThreadEventMark jem(thread); | |
| 1095 JvmtiJavaThreadEventTransition jet(thread); | |
| 1096 jvmtiEventResourceExhausted callback = env->callbacks()->ResourceExhausted; | |
| 1097 if (callback != NULL) { | |
| 1098 (*callback)(env->jvmti_external(), jem.jni_env(), | |
| 1099 resource_exhausted_flags, NULL, description); | |
| 1100 } | |
| 1101 } | |
| 1102 } | |
| 1103 } | |
| 1104 | |
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1105 void JvmtiExport::post_method_entry(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1106 HandleMark hm(thread); |
| 1107 methodHandle mh(thread, method); | |
| 1108 | |
| 1109 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Trg Method Entry triggered %s.%s", | |
| 1110 JvmtiTrace::safe_get_thread_name(thread), | |
| 1111 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1112 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1113 | |
| 1114 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 1115 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1116 // for any thread that actually wants method entry, interp_only_mode is set | |
| 1117 return; | |
| 1118 } | |
| 1119 | |
| 1120 state->incr_cur_stack_depth(); | |
| 1121 | |
| 1122 if (state->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1123 JvmtiEnvThreadStateIterator it(state); | |
| 1124 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1125 if (ets->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1126 EVT_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Evt Method Entry sent %s.%s", | |
| 1127 JvmtiTrace::safe_get_thread_name(thread), | |
| 1128 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1129 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1130 | |
| 1131 JvmtiEnv *env = ets->get_env(); | |
| 1132 JvmtiMethodEventMark jem(thread, mh); | |
| 1133 JvmtiJavaThreadEventTransition jet(thread); | |
| 1134 jvmtiEventMethodEntry callback = env->callbacks()->MethodEntry; | |
| 1135 if (callback != NULL) { | |
| 1136 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_methodID()); | |
| 1137 } | |
| 1138 } | |
| 1139 } | |
| 1140 } | |
| 1141 } | |
| 1142 | |
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1143 void JvmtiExport::post_method_exit(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1144 HandleMark hm(thread); |
| 1145 methodHandle mh(thread, method); | |
| 1146 | |
| 1147 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Trg Method Exit triggered %s.%s", | |
| 1148 JvmtiTrace::safe_get_thread_name(thread), | |
| 1149 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1150 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1151 | |
| 1152 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1153 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1154 // for any thread that actually wants method exit, interp_only_mode is set | |
| 1155 return; | |
| 1156 } | |
| 1157 | |
| 1158 // return a flag when a method terminates by throwing an exception | |
| 1159 // i.e. if an exception is thrown and it's not caught by the current method | |
| 1160 bool exception_exit = state->is_exception_detected() && !state->is_exception_caught(); | |
| 1161 | |
| 1162 | |
| 1163 if (state->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1164 Handle result; | |
| 1165 jvalue value; | |
| 1166 value.j = 0L; | |
| 1167 | |
| 1168 // if the method hasn't been popped because of an exception then we populate | |
| 1169 // the return_value parameter for the callback. At this point we only have | |
| 1170 // the address of a "raw result" and we just call into the interpreter to | |
| 1171 // convert this into a jvalue. | |
| 1172 if (!exception_exit) { | |
| 1173 oop oop_result; | |
| 1174 BasicType type = current_frame.interpreter_frame_result(&oop_result, &value); | |
| 1175 if (type == T_OBJECT || type == T_ARRAY) { | |
| 1176 result = Handle(thread, oop_result); | |
| 1177 } | |
| 1178 } | |
| 1179 | |
| 1180 JvmtiEnvThreadStateIterator it(state); | |
| 1181 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1182 if (ets->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1183 EVT_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Evt Method Exit sent %s.%s", | |
| 1184 JvmtiTrace::safe_get_thread_name(thread), | |
| 1185 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1186 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1187 | |
| 1188 JvmtiEnv *env = ets->get_env(); | |
| 1189 JvmtiMethodEventMark jem(thread, mh); | |
| 1190 if (result.not_null()) { | |
| 1191 value.l = JNIHandles::make_local(thread, result()); | |
| 1192 } | |
| 1193 JvmtiJavaThreadEventTransition jet(thread); | |
| 1194 jvmtiEventMethodExit callback = env->callbacks()->MethodExit; | |
| 1195 if (callback != NULL) { | |
| 1196 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1197 jem.jni_methodID(), exception_exit, value); | |
| 1198 } | |
| 1199 } | |
| 1200 } | |
| 1201 } | |
| 1202 | |
| 1203 if (state->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1204 JvmtiEnvThreadStateIterator it(state); | |
| 1205 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1206 int cur_frame_number = state->cur_stack_depth(); | |
| 1207 | |
| 1208 if (ets->is_frame_pop(cur_frame_number)) { | |
| 1209 // we have a NotifyFramePop entry for this frame. | |
| 1210 // now check that this env/thread wants this event | |
| 1211 if (ets->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1212 EVT_TRACE(JVMTI_EVENT_FRAME_POP, ("JVMTI [%s] Evt Frame Pop sent %s.%s", | |
| 1213 JvmtiTrace::safe_get_thread_name(thread), | |
| 1214 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1215 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1216 | |
| 1217 // we also need to issue a frame pop event for this frame | |
| 1218 JvmtiEnv *env = ets->get_env(); | |
| 1219 JvmtiMethodEventMark jem(thread, mh); | |
| 1220 JvmtiJavaThreadEventTransition jet(thread); | |
| 1221 jvmtiEventFramePop callback = env->callbacks()->FramePop; | |
| 1222 if (callback != NULL) { | |
| 1223 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1224 jem.jni_methodID(), exception_exit); | |
| 1225 } | |
| 1226 } | |
| 1227 // remove the frame's entry | |
| 1228 ets->clear_frame_pop(cur_frame_number); | |
| 1229 } | |
| 1230 } | |
| 1231 } | |
| 1232 | |
| 1233 state->decr_cur_stack_depth(); | |
| 1234 } | |
| 1235 | |
| 1236 | |
| 1237 // Todo: inline this for optimization | |
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1238 void JvmtiExport::post_single_step(JavaThread *thread, Method* method, address location) { |
| 0 | 1239 HandleMark hm(thread); |
| 1240 methodHandle mh(thread, method); | |
| 1241 | |
| 1242 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1243 if (state == NULL) { | |
| 1244 return; | |
| 1245 } | |
| 1246 JvmtiEnvThreadStateIterator it(state); | |
| 1247 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1248 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_SINGLE_STEP); | |
| 1249 if (!ets->single_stepping_posted() && ets->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 1250 EVT_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Evt Single Step sent %s.%s @ %d", | |
| 1251 JvmtiTrace::safe_get_thread_name(thread), | |
| 1252 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1253 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1254 location - mh()->code_base() )); | |
| 1255 | |
| 1256 JvmtiEnv *env = ets->get_env(); | |
| 1257 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1258 JvmtiJavaThreadEventTransition jet(thread); | |
| 1259 jvmtiEventSingleStep callback = env->callbacks()->SingleStep; | |
| 1260 if (callback != NULL) { | |
| 1261 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1262 jem.jni_methodID(), jem.location()); | |
| 1263 } | |
| 1264 | |
| 1265 ets->set_single_stepping_posted(); | |
| 1266 } | |
| 1267 } | |
| 1268 } | |
| 1269 | |
| 1270 | |
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1271 void JvmtiExport::post_exception_throw(JavaThread *thread, Method* method, address location, oop exception) { |
| 0 | 1272 HandleMark hm(thread); |
| 1273 methodHandle mh(thread, method); | |
| 1274 Handle exception_handle(thread, exception); | |
| 1275 | |
| 1276 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1277 if (state == NULL) { | |
| 1278 return; | |
| 1279 } | |
| 1280 | |
| 1281 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION, ("JVMTI [%s] Trg Exception thrown triggered", | |
| 1282 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1283 if (!state->is_exception_detected()) { | |
| 1284 state->set_exception_detected(); | |
| 1285 JvmtiEnvThreadStateIterator it(state); | |
| 1286 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1287 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION) && (exception != NULL)) { | |
| 1288 | |
| 1289 EVT_TRACE(JVMTI_EVENT_EXCEPTION, | |
| 1290 ("JVMTI [%s] Evt Exception thrown sent %s.%s @ %d", | |
| 1291 JvmtiTrace::safe_get_thread_name(thread), | |
| 1292 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1293 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1294 location - mh()->code_base() )); | |
| 1295 | |
| 1296 JvmtiEnv *env = ets->get_env(); | |
| 1297 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1298 | |
| 1299 // It's okay to clear these exceptions here because we duplicate | |
| 1300 // this lookup in InterpreterRuntime::exception_handler_for_exception. | |
| 1301 EXCEPTION_MARK; | |
| 1302 | |
| 1303 bool should_repeat; | |
| 1304 vframeStream st(thread); | |
| 1305 assert(!st.at_end(), "cannot be at end"); | |
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1306 Method* current_method = NULL; |
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1307 // A GC may occur during the Method::fast_exception_handler_bci_for() |
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1308 // call below if it needs to load the constraint class. Using a |
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1309 // methodHandle to keep the 'current_method' from being deallocated |
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1310 // if GC happens. |
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1311 methodHandle current_mh = methodHandle(thread, current_method); |
| 0 | 1312 int current_bci = -1; |
| 1313 do { | |
| 1314 current_method = st.method(); | |
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1315 current_mh = methodHandle(thread, current_method); |
| 0 | 1316 current_bci = st.bci(); |
| 1317 do { | |
| 1318 should_repeat = false; | |
| 1319 KlassHandle eh_klass(thread, exception_handle()->klass()); | |
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1320 current_bci = Method::fast_exception_handler_bci_for( |
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1321 current_mh, eh_klass, current_bci, THREAD); |
| 0 | 1322 if (HAS_PENDING_EXCEPTION) { |
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1323 exception_handle = Handle(thread, PENDING_EXCEPTION); |
| 0 | 1324 CLEAR_PENDING_EXCEPTION; |
| 1325 should_repeat = true; | |
| 1326 } | |
| 1327 } while (should_repeat && (current_bci != -1)); | |
| 1328 st.next(); | |
| 1329 } while ((current_bci < 0) && (!st.at_end())); | |
| 1330 | |
| 1331 jmethodID catch_jmethodID; | |
| 1332 if (current_bci < 0) { | |
| 1333 catch_jmethodID = 0; | |
| 1334 current_bci = 0; | |
| 1335 } else { | |
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1336 catch_jmethodID = jem.to_jmethodID(current_mh); |
| 0 | 1337 } |
| 1338 | |
| 1339 JvmtiJavaThreadEventTransition jet(thread); | |
| 1340 jvmtiEventException callback = env->callbacks()->Exception; | |
| 1341 if (callback != NULL) { | |
| 1342 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1343 jem.jni_methodID(), jem.location(), | |
| 1344 jem.exception(), | |
| 1345 catch_jmethodID, current_bci); | |
| 1346 } | |
| 1347 } | |
| 1348 } | |
| 1349 } | |
| 1350 | |
| 1351 // frames may get popped because of this throw, be safe - invalidate cached depth | |
| 1352 state->invalidate_cur_stack_depth(); | |
| 1353 } | |
| 1354 | |
| 1355 | |
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1356 void JvmtiExport::notice_unwind_due_to_exception(JavaThread *thread, Method* method, address location, oop exception, bool in_handler_frame) { |
| 0 | 1357 HandleMark hm(thread); |
| 1358 methodHandle mh(thread, method); | |
| 1359 Handle exception_handle(thread, exception); | |
| 1360 | |
| 1361 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1362 if (state == NULL) { | |
| 1363 return; | |
| 1364 } | |
| 1365 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1366 ("JVMTI [%s] Trg unwind_due_to_exception triggered %s.%s @ %s%d - %s", | |
| 1367 JvmtiTrace::safe_get_thread_name(thread), | |
| 1368 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1369 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1370 location==0? "no location:" : "", | |
| 1371 location==0? 0 : location - mh()->code_base(), | |
| 1372 in_handler_frame? "in handler frame" : "not handler frame" )); | |
| 1373 | |
| 1374 if (state->is_exception_detected()) { | |
| 1375 | |
| 1376 state->invalidate_cur_stack_depth(); | |
| 1377 if (!in_handler_frame) { | |
| 1378 // Not in exception handler. | |
| 1379 if(state->is_interp_only_mode()) { | |
| 1380 // method exit and frame pop events are posted only in interp mode. | |
| 1381 // When these events are enabled code should be in running in interp mode. | |
| 1382 JvmtiExport::post_method_exit(thread, method, thread->last_frame()); | |
| 1383 // The cached cur_stack_depth might have changed from the | |
| 1384 // operations of frame pop or method exit. We are not 100% sure | |
| 1385 // the cached cur_stack_depth is still valid depth so invalidate | |
| 1386 // it. | |
| 1387 state->invalidate_cur_stack_depth(); | |
| 1388 } | |
| 1389 } else { | |
| 1390 // In exception handler frame. Report exception catch. | |
| 1391 assert(location != NULL, "must be a known location"); | |
| 1392 // Update cur_stack_depth - the frames above the current frame | |
| 1393 // have been unwound due to this exception: | |
| 1394 assert(!state->is_exception_caught(), "exception must not be caught yet."); | |
| 1395 state->set_exception_caught(); | |
| 1396 | |
| 1397 JvmtiEnvThreadStateIterator it(state); | |
| 1398 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1399 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION_CATCH) && (exception_handle() != NULL)) { | |
| 1400 EVT_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1401 ("JVMTI [%s] Evt ExceptionCatch sent %s.%s @ %d", | |
| 1402 JvmtiTrace::safe_get_thread_name(thread), | |
| 1403 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1404 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1405 location - mh()->code_base() )); | |
| 1406 | |
| 1407 JvmtiEnv *env = ets->get_env(); | |
| 1408 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1409 JvmtiJavaThreadEventTransition jet(thread); | |
| 1410 jvmtiEventExceptionCatch callback = env->callbacks()->ExceptionCatch; | |
| 1411 if (callback != NULL) { | |
| 1412 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1413 jem.jni_methodID(), jem.location(), | |
| 1414 jem.exception()); | |
| 1415 } | |
| 1416 } | |
| 1417 } | |
| 1418 } | |
| 1419 } | |
| 1420 } | |
| 1421 | |
| 1422 oop JvmtiExport::jni_GetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1423 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1424 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1425 // At least one field access watch is set so we have more work | |
| 1426 // to do. This wrapper is used by entry points that allow us | |
| 1427 // to create handles in post_field_access_by_jni(). | |
| 1428 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1429 // event posting can block so refetch oop if we were passed a jobj | |
| 1430 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1431 } | |
| 1432 return obj; | |
| 1433 } | |
| 1434 | |
| 1435 oop JvmtiExport::jni_GetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
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1436 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1437 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1438 // At least one field access watch is set so we have more work | |
| 1439 // to do. This wrapper is used by "quick" entry points that don't | |
| 1440 // allow us to create handles in post_field_access_by_jni(). We | |
| 1441 // override that with a ResetNoHandleMark. | |
| 1442 ResetNoHandleMark rnhm; | |
| 1443 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1444 // event posting can block so refetch oop if we were passed a jobj | |
| 1445 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1446 } | |
| 1447 return obj; | |
| 1448 } | |
| 1449 | |
| 1450 void JvmtiExport::post_field_access_by_jni(JavaThread *thread, oop obj, | |
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1451 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1452 // We must be called with a Java context in order to provide reasonable |
| 1453 // values for the klazz, method, and location fields. The callers of this | |
| 1454 // function don't make the call unless there is a Java context. | |
| 1455 assert(thread->has_last_Java_frame(), "must be called with a Java context"); | |
| 1456 | |
| 1457 ResourceMark rm; | |
| 1458 fieldDescriptor fd; | |
| 1459 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1460 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1461 assert(valid_fieldID == true,"post_field_access_by_jni called with invalid fieldID"); | |
| 1462 if (!valid_fieldID) return; | |
| 1463 // field accesses are not watched so bail | |
| 1464 if (!fd.is_field_access_watched()) return; | |
| 1465 | |
| 1466 HandleMark hm(thread); | |
| 1467 KlassHandle h_klass(thread, klass); | |
| 1468 Handle h_obj; | |
| 1469 if (!is_static) { | |
| 1470 // non-static field accessors have an object, but we need a handle | |
| 1471 assert(obj != NULL, "non-static needs an object"); | |
| 1472 h_obj = Handle(thread, obj); | |
| 1473 } | |
| 1474 post_field_access(thread, | |
| 1475 thread->last_frame().interpreter_frame_method(), | |
| 1476 thread->last_frame().interpreter_frame_bcp(), | |
| 1477 h_klass, h_obj, fieldID); | |
| 1478 } | |
| 1479 | |
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1480 void JvmtiExport::post_field_access(JavaThread *thread, Method* method, |
| 0 | 1481 address location, KlassHandle field_klass, Handle object, jfieldID field) { |
| 1482 | |
| 1483 HandleMark hm(thread); | |
| 1484 methodHandle mh(thread, method); | |
| 1485 | |
| 1486 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1487 if (state == NULL) { | |
| 1488 return; | |
| 1489 } | |
| 1490 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Trg Field Access event triggered", | |
| 1491 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1492 JvmtiEnvThreadStateIterator it(state); | |
| 1493 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1494 if (ets->is_enabled(JVMTI_EVENT_FIELD_ACCESS)) { | |
| 1495 EVT_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Evt Field Access event sent %s.%s @ %d", | |
| 1496 JvmtiTrace::safe_get_thread_name(thread), | |
| 1497 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1498 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1499 location - mh()->code_base() )); | |
| 1500 | |
| 1501 JvmtiEnv *env = ets->get_env(); | |
| 1502 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1503 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1504 jobject field_jobject = jem.to_jobject(object()); | |
| 1505 JvmtiJavaThreadEventTransition jet(thread); | |
| 1506 jvmtiEventFieldAccess callback = env->callbacks()->FieldAccess; | |
| 1507 if (callback != NULL) { | |
| 1508 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1509 jem.jni_methodID(), jem.location(), | |
| 1510 field_jclass, field_jobject, field); | |
| 1511 } | |
| 1512 } | |
| 1513 } | |
| 1514 } | |
| 1515 | |
| 1516 oop JvmtiExport::jni_SetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1517 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1518 char sig_type, jvalue *value) { |
| 1519 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1520 // At least one field modification watch is set so we have more work | |
| 1521 // to do. This wrapper is used by entry points that allow us | |
| 1522 // to create handles in post_field_modification_by_jni(). | |
| 1523 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1524 // event posting can block so refetch oop if we were passed a jobj | |
| 1525 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1526 } | |
| 1527 return obj; | |
| 1528 } | |
| 1529 | |
| 1530 oop JvmtiExport::jni_SetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
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1531 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1532 char sig_type, jvalue *value) { |
| 1533 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1534 // At least one field modification watch is set so we have more work | |
| 1535 // to do. This wrapper is used by "quick" entry points that don't | |
| 1536 // allow us to create handles in post_field_modification_by_jni(). We | |
| 1537 // override that with a ResetNoHandleMark. | |
| 1538 ResetNoHandleMark rnhm; | |
| 1539 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1540 // event posting can block so refetch oop if we were passed a jobj | |
| 1541 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1542 } | |
| 1543 return obj; | |
| 1544 } | |
| 1545 | |
| 1546 void JvmtiExport::post_field_modification_by_jni(JavaThread *thread, oop obj, | |
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1547 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1548 char sig_type, jvalue *value) { |
| 1549 // We must be called with a Java context in order to provide reasonable | |
| 1550 // values for the klazz, method, and location fields. The callers of this | |
| 1551 // function don't make the call unless there is a Java context. | |
| 1552 assert(thread->has_last_Java_frame(), "must be called with Java context"); | |
| 1553 | |
| 1554 ResourceMark rm; | |
| 1555 fieldDescriptor fd; | |
| 1556 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1557 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1558 assert(valid_fieldID == true,"post_field_modification_by_jni called with invalid fieldID"); | |
| 1559 if (!valid_fieldID) return; | |
| 1560 // field modifications are not watched so bail | |
| 1561 if (!fd.is_field_modification_watched()) return; | |
| 1562 | |
| 1563 HandleMark hm(thread); | |
| 1564 | |
| 1565 Handle h_obj; | |
| 1566 if (!is_static) { | |
| 1567 // non-static field accessors have an object, but we need a handle | |
| 1568 assert(obj != NULL, "non-static needs an object"); | |
| 1569 h_obj = Handle(thread, obj); | |
| 1570 } | |
| 1571 KlassHandle h_klass(thread, klass); | |
| 1572 post_field_modification(thread, | |
| 1573 thread->last_frame().interpreter_frame_method(), | |
| 1574 thread->last_frame().interpreter_frame_bcp(), | |
| 1575 h_klass, h_obj, fieldID, sig_type, value); | |
| 1576 } | |
| 1577 | |
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1578 void JvmtiExport::post_raw_field_modification(JavaThread *thread, Method* method, |
| 0 | 1579 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1580 char sig_type, jvalue *value) { | |
| 1581 | |
| 1582 if (sig_type == 'I' || sig_type == 'Z' || sig_type == 'C' || sig_type == 'S') { | |
| 1583 // 'I' instructions are used for byte, char, short and int. | |
| 1584 // determine which it really is, and convert | |
| 1585 fieldDescriptor fd; | |
| 1586 bool found = JvmtiEnv::get_field_descriptor(field_klass(), field, &fd); | |
| 1587 // should be found (if not, leave as is) | |
| 1588 if (found) { | |
| 1589 jint ival = value->i; | |
| 1590 // convert value from int to appropriate type | |
| 1591 switch (fd.field_type()) { | |
| 1592 case T_BOOLEAN: | |
| 1593 sig_type = 'Z'; | |
| 1594 value->i = 0; // clear it | |
| 1595 value->z = (jboolean)ival; | |
| 1596 break; | |
| 1597 case T_BYTE: | |
| 1598 sig_type = 'B'; | |
| 1599 value->i = 0; // clear it | |
| 1600 value->b = (jbyte)ival; | |
| 1601 break; | |
| 1602 case T_CHAR: | |
| 1603 sig_type = 'C'; | |
| 1604 value->i = 0; // clear it | |
| 1605 value->c = (jchar)ival; | |
| 1606 break; | |
| 1607 case T_SHORT: | |
| 1608 sig_type = 'S'; | |
| 1609 value->i = 0; // clear it | |
| 1610 value->s = (jshort)ival; | |
| 1611 break; | |
| 1612 case T_INT: | |
| 1613 // nothing to do | |
| 1614 break; | |
| 1615 default: | |
| 1616 // this is an integer instruction, should be one of above | |
| 1617 ShouldNotReachHere(); | |
| 1618 break; | |
| 1619 } | |
| 1620 } | |
| 1621 } | |
| 1622 | |
| 1623 // convert oop to JNI handle. | |
| 1624 if (sig_type == 'L' || sig_type == '[') { | |
| 1625 value->l = (jobject)JNIHandles::make_local(thread, (oop)value->l); | |
| 1626 } | |
| 1627 | |
| 1628 post_field_modification(thread, method, location, field_klass, object, field, sig_type, value); | |
| 1629 | |
| 1630 // Destroy the JNI handle allocated above. | |
| 1631 if (sig_type == 'L') { | |
| 1632 JNIHandles::destroy_local(value->l); | |
| 1633 } | |
| 1634 } | |
| 1635 | |
|
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1636 void JvmtiExport::post_field_modification(JavaThread *thread, Method* method, |
| 0 | 1637 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1638 char sig_type, jvalue *value_ptr) { | |
| 1639 | |
| 1640 HandleMark hm(thread); | |
| 1641 methodHandle mh(thread, method); | |
| 1642 | |
| 1643 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1644 if (state == NULL) { | |
| 1645 return; | |
| 1646 } | |
| 1647 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1648 ("JVMTI [%s] Trg Field Modification event triggered", | |
| 1649 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1650 | |
| 1651 JvmtiEnvThreadStateIterator it(state); | |
| 1652 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1653 if (ets->is_enabled(JVMTI_EVENT_FIELD_MODIFICATION)) { | |
| 1654 EVT_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1655 ("JVMTI [%s] Evt Field Modification event sent %s.%s @ %d", | |
| 1656 JvmtiTrace::safe_get_thread_name(thread), | |
| 1657 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1658 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1659 location - mh()->code_base() )); | |
| 1660 | |
| 1661 JvmtiEnv *env = ets->get_env(); | |
| 1662 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1663 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1664 jobject field_jobject = jem.to_jobject(object()); | |
| 1665 JvmtiJavaThreadEventTransition jet(thread); | |
| 1666 jvmtiEventFieldModification callback = env->callbacks()->FieldModification; | |
| 1667 if (callback != NULL) { | |
| 1668 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1669 jem.jni_methodID(), jem.location(), | |
| 1670 field_jclass, field_jobject, field, sig_type, *value_ptr); | |
| 1671 } | |
| 1672 } | |
| 1673 } | |
| 1674 } | |
| 1675 | |
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1676 void JvmtiExport::post_native_method_bind(Method* method, address* function_ptr) { |
| 0 | 1677 JavaThread* thread = JavaThread::current(); |
| 1678 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1679 | |
| 1680 HandleMark hm(thread); | |
| 1681 methodHandle mh(thread, method); | |
| 1682 | |
| 1683 EVT_TRIG_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Trg Native Method Bind event triggered", | |
| 1684 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1685 | |
| 1686 if (JvmtiEventController::is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1687 JvmtiEnvIterator it; | |
| 1688 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1689 if (env->is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1690 EVT_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Evt Native Method Bind event sent", | |
| 1691 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1692 | |
| 1693 JvmtiMethodEventMark jem(thread, mh); | |
| 1694 JvmtiJavaThreadEventTransition jet(thread); | |
| 1695 JNIEnv* jni_env = JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL? NULL : jem.jni_env(); | |
| 1696 jvmtiEventNativeMethodBind callback = env->callbacks()->NativeMethodBind; | |
| 1697 if (callback != NULL) { | |
| 1698 (*callback)(env->jvmti_external(), jni_env, jem.jni_thread(), | |
| 1699 jem.jni_methodID(), (void*)(*function_ptr), (void**)function_ptr); | |
| 1700 } | |
| 1701 } | |
| 1702 } | |
| 1703 } | |
| 1704 } | |
| 1705 | |
|
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1706 // Returns a record containing inlining information for the given nmethod |
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1707 jvmtiCompiledMethodLoadInlineRecord* create_inline_record(nmethod* nm) { |
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1708 jint numstackframes = 0; |
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1709 jvmtiCompiledMethodLoadInlineRecord* record = (jvmtiCompiledMethodLoadInlineRecord*)NEW_RESOURCE_OBJ(jvmtiCompiledMethodLoadInlineRecord); |
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1710 record->header.kind = JVMTI_CMLR_INLINE_INFO; |
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1711 record->header.next = NULL; |
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1712 record->header.majorinfoversion = JVMTI_CMLR_MAJOR_VERSION_1; |
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1713 record->header.minorinfoversion = JVMTI_CMLR_MINOR_VERSION_0; |
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1714 record->numpcs = 0; |
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1715 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1716 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1717 record->numpcs++; |
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1718 } |
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1719 record->pcinfo = (PCStackInfo*)(NEW_RESOURCE_ARRAY(PCStackInfo, record->numpcs)); |
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1720 int scope = 0; |
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1721 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1722 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1723 void* pc_address = (void*)p->real_pc(nm); |
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1724 assert(pc_address != NULL, "pc_address must be non-null"); |
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1725 record->pcinfo[scope].pc = pc_address; |
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1726 numstackframes=0; |
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1727 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1728 numstackframes++; |
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1729 } |
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1730 assert(numstackframes != 0, "numstackframes must be nonzero."); |
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1731 record->pcinfo[scope].methods = (jmethodID *)NEW_RESOURCE_ARRAY(jmethodID, numstackframes); |
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1732 record->pcinfo[scope].bcis = (jint *)NEW_RESOURCE_ARRAY(jint, numstackframes); |
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1733 record->pcinfo[scope].numstackframes = numstackframes; |
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1734 int stackframe = 0; |
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1735 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1736 // sd->method() can be NULL for stubs but not for nmethods. To be completely robust, include an assert that we should never see a null sd->method() |
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1737 assert(sd->method() != NULL, "sd->method() cannot be null."); |
|
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1738 record->pcinfo[scope].methods[stackframe] = sd->method()->jmethod_id(); |
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1739 record->pcinfo[scope].bcis[stackframe] = sd->bci(); |
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1740 stackframe++; |
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1741 } |
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1742 scope++; |
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1743 } |
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1744 return record; |
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1745 } |
| 0 | 1746 |
| 1747 void JvmtiExport::post_compiled_method_load(nmethod *nm) { | |
| 1748 JavaThread* thread = JavaThread::current(); | |
| 1749 | |
| 1750 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1751 ("JVMTI [%s] method compile load event triggered", | |
| 1752 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1753 | |
| 1754 JvmtiEnvIterator it; | |
| 1755 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1756 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1757 | |
| 1758 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1759 ("JVMTI [%s] class compile method load event sent %s.%s ", | |
| 1760 JvmtiTrace::safe_get_thread_name(thread), | |
| 1761 (nm->method() == NULL) ? "NULL" : nm->method()->klass_name()->as_C_string(), | |
| 1762 (nm->method() == NULL) ? "NULL" : nm->method()->name()->as_C_string())); | |
| 1763 ResourceMark rm(thread); | |
|
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1764 HandleMark hm(thread); |
|
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1765 |
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1766 // Add inlining information |
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1767 jvmtiCompiledMethodLoadInlineRecord* inlinerecord = create_inline_record(nm); |
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1768 // Pass inlining information through the void pointer |
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1769 JvmtiCompiledMethodLoadEventMark jem(thread, nm, inlinerecord); |
| 0 | 1770 JvmtiJavaThreadEventTransition jet(thread); |
| 1771 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1772 if (callback != NULL) { | |
| 1773 (*callback)(env->jvmti_external(), jem.jni_methodID(), | |
| 1774 jem.code_size(), jem.code_data(), jem.map_length(), | |
| 1775 jem.map(), jem.compile_info()); | |
| 1776 } | |
| 1777 } | |
| 1778 } | |
| 1779 } | |
| 1780 | |
| 1781 | |
| 1782 // post a COMPILED_METHOD_LOAD event for a given environment | |
| 1783 void JvmtiExport::post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length, | |
| 1784 const void *code_begin, const jint map_length, | |
| 1785 const jvmtiAddrLocationMap* map) | |
| 1786 { | |
| 1787 JavaThread* thread = JavaThread::current(); | |
| 1788 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1789 ("JVMTI [%s] method compile load event triggered (by GenerateEvents)", | |
| 1790 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1791 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1792 | |
| 1793 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1794 ("JVMTI [%s] class compile method load event sent (by GenerateEvents), jmethodID=" PTR_FORMAT, | |
| 1795 JvmtiTrace::safe_get_thread_name(thread), method)); | |
| 1796 | |
| 1797 JvmtiEventMark jem(thread); | |
| 1798 JvmtiJavaThreadEventTransition jet(thread); | |
| 1799 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1800 if (callback != NULL) { | |
| 1801 (*callback)(env->jvmti_external(), method, | |
| 1802 length, code_begin, map_length, | |
| 1803 map, NULL); | |
| 1804 } | |
| 1805 } | |
| 1806 } | |
| 1807 | |
| 1808 void JvmtiExport::post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) { | |
|
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1809 assert(name != NULL && name[0] != '\0', "sanity check"); |
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1810 |
| 0 | 1811 JavaThread* thread = JavaThread::current(); |
|
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1812 // In theory everyone coming thru here is in_vm but we need to be certain |
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1813 // because a callee will do a vm->native transition |
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1814 ThreadInVMfromUnknown __tiv; |
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1815 |
| 0 | 1816 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, |
| 1817 ("JVMTI [%s] method dynamic code generated event triggered", | |
| 1818 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1819 JvmtiEnvIterator it; | |
| 1820 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1821 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1822 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1823 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1824 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1825 JvmtiEventMark jem(thread); | |
| 1826 JvmtiJavaThreadEventTransition jet(thread); | |
| 1827 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1828 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1829 if (callback != NULL) { | |
| 1830 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1831 } | |
| 1832 } | |
| 1833 } | |
| 1834 } | |
| 1835 | |
| 1836 void JvmtiExport::post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) { | |
| 1837 jvmtiPhase phase = JvmtiEnv::get_phase(); | |
| 1838 if (phase == JVMTI_PHASE_PRIMORDIAL || phase == JVMTI_PHASE_START) { | |
| 1839 post_dynamic_code_generated_internal(name, code_begin, code_end); | |
|
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1840 } else { |
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1841 // It may not be safe to post the event from this thread. Defer all |
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1842 // postings to the service thread so that it can perform them in a safe |
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1843 // context and in-order. |
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1844 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1845 JvmtiDeferredEvent event = JvmtiDeferredEvent::dynamic_code_generated_event( |
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1846 name, code_begin, code_end); |
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1847 JvmtiDeferredEventQueue::enqueue(event); |
| 0 | 1848 } |
| 1849 } | |
| 1850 | |
| 1851 | |
| 1852 // post a DYNAMIC_CODE_GENERATED event for a given environment | |
| 1853 // used by GenerateEvents | |
| 1854 void JvmtiExport::post_dynamic_code_generated(JvmtiEnv* env, const char *name, | |
| 1855 const void *code_begin, const void *code_end) | |
| 1856 { | |
| 1857 JavaThread* thread = JavaThread::current(); | |
| 1858 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1859 ("JVMTI [%s] dynamic code generated event triggered (by GenerateEvents)", | |
| 1860 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1861 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1862 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1863 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1864 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1865 JvmtiEventMark jem(thread); | |
| 1866 JvmtiJavaThreadEventTransition jet(thread); | |
| 1867 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1868 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1869 if (callback != NULL) { | |
| 1870 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1871 } | |
| 1872 } | |
| 1873 } | |
| 1874 | |
| 1875 // post a DynamicCodeGenerated event while holding locks in the VM. | |
| 1876 void JvmtiExport::post_dynamic_code_generated_while_holding_locks(const char* name, | |
| 1877 address code_begin, address code_end) | |
| 1878 { | |
| 1879 // register the stub with the current dynamic code event collector | |
| 1880 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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1881 // state can only be NULL if the current thread is exiting which |
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1882 // should not happen since we're trying to post an event |
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1883 guarantee(state != NULL, "attempt to register stub via an exiting thread"); |
| 0 | 1884 JvmtiDynamicCodeEventCollector* collector = state->get_dynamic_code_event_collector(); |
| 1885 guarantee(collector != NULL, "attempt to register stub without event collector"); | |
| 1886 collector->register_stub(name, code_begin, code_end); | |
| 1887 } | |
| 1888 | |
| 1889 // Collect all the vm internally allocated objects which are visible to java world | |
| 1890 void JvmtiExport::record_vm_internal_object_allocation(oop obj) { | |
| 1891 Thread* thread = ThreadLocalStorage::thread(); | |
| 1892 if (thread != NULL && thread->is_Java_thread()) { | |
| 1893 // Can not take safepoint here. | |
| 1894 No_Safepoint_Verifier no_sfpt; | |
| 1895 // Can not take safepoint here so can not use state_for to get | |
| 1896 // jvmti thread state. | |
| 1897 JvmtiThreadState *state = ((JavaThread*)thread)->jvmti_thread_state(); | |
| 1898 if (state != NULL ) { | |
| 1899 // state is non NULL when VMObjectAllocEventCollector is enabled. | |
| 1900 JvmtiVMObjectAllocEventCollector *collector; | |
| 1901 collector = state->get_vm_object_alloc_event_collector(); | |
| 1902 if (collector != NULL && collector->is_enabled()) { | |
| 1903 // Don't record classes as these will be notified via the ClassLoad | |
| 1904 // event. | |
| 1142 | 1905 if (obj->klass() != SystemDictionary::Class_klass()) { |
| 0 | 1906 collector->record_allocation(obj); |
| 1907 } | |
| 1908 } | |
| 1909 } | |
| 1910 } | |
| 1911 } | |
| 1912 | |
| 1913 void JvmtiExport::post_garbage_collection_finish() { | |
| 1914 Thread *thread = Thread::current(); // this event is posted from VM-Thread. | |
| 1915 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1916 ("JVMTI [%s] garbage collection finish event triggered", | |
| 1917 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1918 JvmtiEnvIterator it; | |
| 1919 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1920 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH)) { | |
| 1921 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1922 ("JVMTI [%s] garbage collection finish event sent ", | |
| 1923 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1924 JvmtiThreadEventTransition jet(thread); | |
| 1925 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1926 jvmtiEventGarbageCollectionFinish callback = env->callbacks()->GarbageCollectionFinish; | |
| 1927 if (callback != NULL) { | |
| 1928 (*callback)(env->jvmti_external()); | |
| 1929 } | |
| 1930 } | |
| 1931 } | |
| 1932 } | |
| 1933 | |
| 1934 void JvmtiExport::post_garbage_collection_start() { | |
| 1935 Thread* thread = Thread::current(); // this event is posted from vm-thread. | |
| 1936 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1937 ("JVMTI [%s] garbage collection start event triggered", | |
| 1938 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1939 JvmtiEnvIterator it; | |
| 1940 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1941 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_START)) { | |
| 1942 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1943 ("JVMTI [%s] garbage collection start event sent ", | |
| 1944 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1945 JvmtiThreadEventTransition jet(thread); | |
| 1946 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1947 jvmtiEventGarbageCollectionStart callback = env->callbacks()->GarbageCollectionStart; | |
| 1948 if (callback != NULL) { | |
| 1949 (*callback)(env->jvmti_external()); | |
| 1950 } | |
| 1951 } | |
| 1952 } | |
| 1953 } | |
| 1954 | |
| 1955 void JvmtiExport::post_data_dump() { | |
| 1956 Thread *thread = Thread::current(); | |
| 1957 EVT_TRIG_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1958 ("JVMTI [%s] data dump request event triggered", | |
| 1959 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1960 JvmtiEnvIterator it; | |
| 1961 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1962 if (env->is_enabled(JVMTI_EVENT_DATA_DUMP_REQUEST)) { | |
| 1963 EVT_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1964 ("JVMTI [%s] data dump request event sent ", | |
| 1965 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1966 JvmtiThreadEventTransition jet(thread); | |
| 1967 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1968 jvmtiEventDataDumpRequest callback = env->callbacks()->DataDumpRequest; | |
| 1969 if (callback != NULL) { | |
| 1970 (*callback)(env->jvmti_external()); | |
| 1971 } | |
| 1972 } | |
| 1973 } | |
| 1974 } | |
| 1975 | |
| 1976 void JvmtiExport::post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 1977 oop object = (oop)obj_mntr->object(); | |
| 1978 if (!ServiceUtil::visible_oop(object)) { | |
| 1979 // Ignore monitor contended enter for vm internal object. | |
| 1980 return; | |
| 1981 } | |
| 1982 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1983 if (state == NULL) { | |
| 1984 return; | |
| 1985 } | |
| 1986 | |
| 1987 HandleMark hm(thread); | |
| 1988 Handle h(thread, object); | |
| 1989 | |
| 1990 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 1991 ("JVMTI [%s] montior contended enter event triggered", | |
| 1992 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1993 | |
| 1994 JvmtiEnvThreadStateIterator it(state); | |
| 1995 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1996 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTER)) { | |
| 1997 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 1998 ("JVMTI [%s] monitor contended enter event sent", | |
| 1999 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2000 JvmtiMonitorEventMark jem(thread, h()); | |
| 2001 JvmtiEnv *env = ets->get_env(); | |
| 2002 JvmtiThreadEventTransition jet(thread); | |
| 2003 jvmtiEventMonitorContendedEnter callback = env->callbacks()->MonitorContendedEnter; | |
| 2004 if (callback != NULL) { | |
| 2005 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2006 } | |
| 2007 } | |
| 2008 } | |
| 2009 } | |
| 2010 | |
| 2011 void JvmtiExport::post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 2012 oop object = (oop)obj_mntr->object(); | |
| 2013 if (!ServiceUtil::visible_oop(object)) { | |
| 2014 // Ignore monitor contended entered for vm internal object. | |
| 2015 return; | |
| 2016 } | |
| 2017 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2018 if (state == NULL) { | |
| 2019 return; | |
| 2020 } | |
| 2021 | |
| 2022 HandleMark hm(thread); | |
| 2023 Handle h(thread, object); | |
| 2024 | |
| 2025 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2026 ("JVMTI [%s] montior contended entered event triggered", | |
| 2027 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2028 | |
| 2029 JvmtiEnvThreadStateIterator it(state); | |
| 2030 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2031 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED)) { | |
| 2032 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2033 ("JVMTI [%s] monitor contended enter event sent", | |
| 2034 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2035 JvmtiMonitorEventMark jem(thread, h()); | |
| 2036 JvmtiEnv *env = ets->get_env(); | |
| 2037 JvmtiThreadEventTransition jet(thread); | |
| 2038 jvmtiEventMonitorContendedEntered callback = env->callbacks()->MonitorContendedEntered; | |
| 2039 if (callback != NULL) { | |
| 2040 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2041 } | |
| 2042 } | |
| 2043 } | |
| 2044 } | |
| 2045 | |
| 2046 void JvmtiExport::post_monitor_wait(JavaThread *thread, oop object, | |
| 2047 jlong timeout) { | |
| 2048 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2049 if (state == NULL) { | |
| 2050 return; | |
| 2051 } | |
| 2052 | |
| 2053 HandleMark hm(thread); | |
| 2054 Handle h(thread, object); | |
| 2055 | |
| 2056 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2057 ("JVMTI [%s] montior wait event triggered", | |
| 2058 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2059 | |
| 2060 JvmtiEnvThreadStateIterator it(state); | |
| 2061 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2062 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAIT)) { | |
| 2063 EVT_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2064 ("JVMTI [%s] monitor wait event sent ", | |
| 2065 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2066 JvmtiMonitorEventMark jem(thread, h()); | |
| 2067 JvmtiEnv *env = ets->get_env(); | |
| 2068 JvmtiThreadEventTransition jet(thread); | |
| 2069 jvmtiEventMonitorWait callback = env->callbacks()->MonitorWait; | |
| 2070 if (callback != NULL) { | |
| 2071 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2072 jem.jni_object(), timeout); | |
| 2073 } | |
| 2074 } | |
| 2075 } | |
| 2076 } | |
| 2077 | |
| 2078 void JvmtiExport::post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) { | |
| 2079 oop object = (oop)obj_mntr->object(); | |
| 2080 if (!ServiceUtil::visible_oop(object)) { | |
| 2081 // Ignore monitor waited for vm internal object. | |
| 2082 return; | |
| 2083 } | |
| 2084 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2085 if (state == NULL) { | |
| 2086 return; | |
| 2087 } | |
| 2088 | |
| 2089 HandleMark hm(thread); | |
| 2090 Handle h(thread, object); | |
| 2091 | |
| 2092 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2093 ("JVMTI [%s] montior waited event triggered", | |
| 2094 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2095 | |
| 2096 JvmtiEnvThreadStateIterator it(state); | |
| 2097 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2098 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAITED)) { | |
| 2099 EVT_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2100 ("JVMTI [%s] monitor waited event sent ", | |
| 2101 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2102 JvmtiMonitorEventMark jem(thread, h()); | |
| 2103 JvmtiEnv *env = ets->get_env(); | |
| 2104 JvmtiThreadEventTransition jet(thread); | |
| 2105 jvmtiEventMonitorWaited callback = env->callbacks()->MonitorWaited; | |
| 2106 if (callback != NULL) { | |
| 2107 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2108 jem.jni_object(), timed_out); | |
| 2109 } | |
| 2110 } | |
| 2111 } | |
| 2112 } | |
| 2113 | |
| 2114 | |
| 2115 void JvmtiExport::post_vm_object_alloc(JavaThread *thread, oop object) { | |
| 2116 EVT_TRIG_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Trg vm object alloc triggered", | |
| 2117 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2118 if (object == NULL) { | |
| 2119 return; | |
| 2120 } | |
| 2121 HandleMark hm(thread); | |
| 2122 Handle h(thread, object); | |
| 2123 JvmtiEnvIterator it; | |
| 2124 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 2125 if (env->is_enabled(JVMTI_EVENT_VM_OBJECT_ALLOC)) { | |
| 2126 EVT_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Evt vmobject alloc sent %s", | |
| 2127 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 2128 object==NULL? "NULL" : java_lang_Class::as_Klass(object)->external_name())); |
| 0 | 2129 |
| 2130 JvmtiVMObjectAllocEventMark jem(thread, h()); | |
| 2131 JvmtiJavaThreadEventTransition jet(thread); | |
| 2132 jvmtiEventVMObjectAlloc callback = env->callbacks()->VMObjectAlloc; | |
| 2133 if (callback != NULL) { | |
| 2134 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2135 jem.jni_jobject(), jem.jni_class(), jem.size()); | |
| 2136 } | |
| 2137 } | |
| 2138 } | |
| 2139 } | |
| 2140 | |
| 2141 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2142 | |
| 2143 void JvmtiExport::cleanup_thread(JavaThread* thread) { | |
| 2144 assert(JavaThread::current() == thread, "thread is not current"); | |
|
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2145 MutexLocker mu(JvmtiThreadState_lock); |
| 0 | 2146 |
|
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2147 if (thread->jvmti_thread_state() != NULL) { |
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2148 // This has to happen after the thread state is removed, which is |
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2149 // why it is not in post_thread_end_event like its complement |
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2150 // Maybe both these functions should be rolled into the posts? |
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2151 JvmtiEventController::thread_ended(thread); |
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2152 } |
| 0 | 2153 } |
| 2154 | |
| 2155 void JvmtiExport::oops_do(OopClosure* f) { | |
| 2156 JvmtiCurrentBreakpoints::oops_do(f); | |
| 2157 JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(f); | |
| 2158 } | |
| 2159 | |
|
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2160 void JvmtiExport::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f) { |
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2161 JvmtiTagMap::weak_oops_do(is_alive, f); |
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2162 } |
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2163 |
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2164 void JvmtiExport::gc_epilogue() { |
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2165 JvmtiCurrentBreakpoints::gc_epilogue(); |
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2166 } |
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2167 |
| 0 | 2168 // Onload raw monitor transition. |
| 2169 void JvmtiExport::transition_pending_onload_raw_monitors() { | |
| 2170 JvmtiPendingMonitors::transition_raw_monitors(); | |
| 2171 } | |
| 2172 | |
| 2173 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2174 | |
| 2175 // type for the Agent_OnAttach entry point | |
| 2176 extern "C" { | |
| 2177 typedef jint (JNICALL *OnAttachEntry_t)(JavaVM*, char *, void *); | |
| 2178 } | |
| 2179 | |
| 2180 jint JvmtiExport::load_agent_library(AttachOperation* op, outputStream* st) { | |
| 2181 char ebuf[1024]; | |
| 2182 char buffer[JVM_MAXPATHLEN]; | |
|
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2183 void* library = NULL; |
| 0 | 2184 jint result = JNI_ERR; |
| 2185 | |
| 2186 // get agent name and options | |
| 2187 const char* agent = op->arg(0); | |
| 2188 const char* absParam = op->arg(1); | |
| 2189 const char* options = op->arg(2); | |
| 2190 | |
| 2191 // The abs paramter should be "true" or "false" | |
| 2192 bool is_absolute_path = (absParam != NULL) && (strcmp(absParam,"true")==0); | |
| 2193 | |
| 2194 | |
| 2195 // If the path is absolute we attempt to load the library. Otherwise we try to | |
| 2196 // load it from the standard dll directory. | |
| 2197 | |
| 2198 if (is_absolute_path) { | |
|
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2199 library = os::dll_load(agent, ebuf, sizeof ebuf); |
| 0 | 2200 } else { |
| 2201 // Try to load the agent from the standard dll directory | |
|
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2202 if (os::dll_build_name(buffer, sizeof(buffer), Arguments::get_dll_dir(), |
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2203 agent)) { |
|
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2204 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
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2205 } |
| 0 | 2206 if (library == NULL) { |
| 2207 // not found - try local path | |
| 2208 char ns[1] = {0}; | |
|
6966
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
6725
diff
changeset
|
2209 if (os::dll_build_name(buffer, sizeof(buffer), ns, agent)) { |
|
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
6725
diff
changeset
|
2210 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
|
6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
bpittore
parents:
6725
diff
changeset
|
2211 } |
| 0 | 2212 } |
| 2213 } | |
| 2214 | |
| 2215 // If the library was loaded then we attempt to invoke the Agent_OnAttach | |
| 2216 // function | |
| 2217 if (library != NULL) { | |
| 2218 | |
| 2219 // Lookup the Agent_OnAttach function | |
| 2220 OnAttachEntry_t on_attach_entry = NULL; | |
| 2221 const char *on_attach_symbols[] = AGENT_ONATTACH_SYMBOLS; | |
| 2222 for (uint symbol_index = 0; symbol_index < ARRAY_SIZE(on_attach_symbols); symbol_index++) { | |
| 2223 on_attach_entry = | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2224 CAST_TO_FN_PTR(OnAttachEntry_t, os::dll_lookup(library, on_attach_symbols[symbol_index])); |
| 0 | 2225 if (on_attach_entry != NULL) break; |
| 2226 } | |
| 2227 | |
| 2228 if (on_attach_entry == NULL) { | |
| 2229 // Agent_OnAttach missing - unload library | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
2230 os::dll_unload(library); |
| 0 | 2231 } else { |
| 2232 // Invoke the Agent_OnAttach function | |
| 2233 JavaThread* THREAD = JavaThread::current(); | |
| 2234 { | |
| 2235 extern struct JavaVM_ main_vm; | |
| 2236 JvmtiThreadEventMark jem(THREAD); | |
| 2237 JvmtiJavaThreadEventTransition jet(THREAD); | |
| 2238 | |
| 2239 result = (*on_attach_entry)(&main_vm, (char*)options, NULL); | |
| 2240 } | |
| 2241 | |
| 2242 // Agent_OnAttach may have used JNI | |
| 2243 if (HAS_PENDING_EXCEPTION) { | |
| 2244 CLEAR_PENDING_EXCEPTION; | |
| 2245 } | |
| 2246 | |
| 2247 // If OnAttach returns JNI_OK then we add it to the list of | |
| 2248 // agent libraries so that we can call Agent_OnUnload later. | |
| 2249 if (result == JNI_OK) { | |
| 2250 Arguments::add_loaded_agent(agent, (char*)options, is_absolute_path, library); | |
| 2251 } | |
| 2252 | |
| 2253 // Agent_OnAttach executed so completion status is JNI_OK | |
| 2254 st->print_cr("%d", result); | |
| 2255 result = JNI_OK; | |
| 2256 } | |
| 2257 } | |
| 2258 return result; | |
| 2259 } | |
| 2260 | |
| 2261 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2262 | |
| 2263 // Setup current current thread for event collection. | |
| 2264 void JvmtiEventCollector::setup_jvmti_thread_state() { | |
| 2265 // set this event collector to be the current one. | |
| 2266 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
609
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
342
diff
changeset
|
2267 // state can only be NULL if the current thread is exiting which |
|
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
342
diff
changeset
|
2268 // should not happen since we're trying to configure for event collection |
|
ea20d7ce26b0
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
342
diff
changeset
|
2269 guarantee(state != NULL, "exiting thread called setup_jvmti_thread_state"); |
| 0 | 2270 if (is_vm_object_alloc_event()) { |
| 2271 _prev = state->get_vm_object_alloc_event_collector(); | |
| 2272 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)this); | |
| 2273 } else if (is_dynamic_code_event()) { | |
| 2274 _prev = state->get_dynamic_code_event_collector(); | |
| 2275 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)this); | |
| 2276 } | |
| 2277 } | |
| 2278 | |
| 2279 // Unset current event collection in this thread and reset it with previous | |
| 2280 // collector. | |
| 2281 void JvmtiEventCollector::unset_jvmti_thread_state() { | |
| 2282 JvmtiThreadState* state = JavaThread::current()->jvmti_thread_state(); | |
| 2283 if (state != NULL) { | |
| 2284 // restore the previous event collector (if any) | |
| 2285 if (is_vm_object_alloc_event()) { | |
| 2286 if (state->get_vm_object_alloc_event_collector() == this) { | |
| 2287 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)_prev); | |
| 2288 } else { | |
| 2289 // this thread's jvmti state was created during the scope of | |
| 2290 // the event collector. | |
| 2291 } | |
| 2292 } else { | |
| 2293 if (is_dynamic_code_event()) { | |
| 2294 if (state->get_dynamic_code_event_collector() == this) { | |
| 2295 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)_prev); | |
| 2296 } else { | |
| 2297 // this thread's jvmti state was created during the scope of | |
| 2298 // the event collector. | |
| 2299 } | |
| 2300 } | |
| 2301 } | |
| 2302 } | |
| 2303 } | |
| 2304 | |
| 2305 // create the dynamic code event collector | |
| 2306 JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(NULL) { | |
| 2307 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 2308 setup_jvmti_thread_state(); | |
| 2309 } | |
| 2310 } | |
| 2311 | |
| 2312 // iterate over any code blob descriptors collected and post a | |
| 2313 // DYNAMIC_CODE_GENERATED event to the profiler. | |
| 2314 JvmtiDynamicCodeEventCollector::~JvmtiDynamicCodeEventCollector() { | |
| 2315 assert(!JavaThread::current()->owns_locks(), "all locks must be released to post deferred events"); | |
| 2316 // iterate over any code blob descriptors that we collected | |
| 2317 if (_code_blobs != NULL) { | |
| 2318 for (int i=0; i<_code_blobs->length(); i++) { | |
| 2319 JvmtiCodeBlobDesc* blob = _code_blobs->at(i); | |
| 2320 JvmtiExport::post_dynamic_code_generated(blob->name(), blob->code_begin(), blob->code_end()); | |
| 2321 FreeHeap(blob); | |
| 2322 } | |
| 2323 delete _code_blobs; | |
| 2324 } | |
| 2325 unset_jvmti_thread_state(); | |
| 2326 } | |
| 2327 | |
| 2328 // register a stub | |
| 2329 void JvmtiDynamicCodeEventCollector::register_stub(const char* name, address start, address end) { | |
| 2330 if (_code_blobs == NULL) { | |
| 6197 | 2331 _code_blobs = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<JvmtiCodeBlobDesc*>(1,true); |
| 0 | 2332 } |
| 2333 _code_blobs->append(new JvmtiCodeBlobDesc(name, start, end)); | |
| 2334 } | |
| 2335 | |
| 2336 // Setup current thread to record vm allocated objects. | |
| 2337 JvmtiVMObjectAllocEventCollector::JvmtiVMObjectAllocEventCollector() : _allocated(NULL) { | |
| 2338 if (JvmtiExport::should_post_vm_object_alloc()) { | |
| 2339 _enable = true; | |
| 2340 setup_jvmti_thread_state(); | |
| 2341 } else { | |
| 2342 _enable = false; | |
| 2343 } | |
| 2344 } | |
| 2345 | |
| 2346 // Post vm_object_alloc event for vm allocated objects visible to java | |
| 2347 // world. | |
| 2348 JvmtiVMObjectAllocEventCollector::~JvmtiVMObjectAllocEventCollector() { | |
| 2349 if (_allocated != NULL) { | |
| 2350 set_enabled(false); | |
| 2351 for (int i = 0; i < _allocated->length(); i++) { | |
| 2352 oop obj = _allocated->at(i); | |
| 2353 if (ServiceUtil::visible_oop(obj)) { | |
| 2354 JvmtiExport::post_vm_object_alloc(JavaThread::current(), obj); | |
| 2355 } | |
| 2356 } | |
| 2357 delete _allocated; | |
| 2358 } | |
| 2359 unset_jvmti_thread_state(); | |
| 2360 } | |
| 2361 | |
| 2362 void JvmtiVMObjectAllocEventCollector::record_allocation(oop obj) { | |
| 2363 assert(is_enabled(), "VM object alloc event collector is not enabled"); | |
| 2364 if (_allocated == NULL) { | |
| 6197 | 2365 _allocated = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<oop>(1, true); |
| 0 | 2366 } |
| 2367 _allocated->push(obj); | |
| 2368 } | |
| 2369 | |
| 2370 // GC support. | |
| 2371 void JvmtiVMObjectAllocEventCollector::oops_do(OopClosure* f) { | |
| 2372 if (_allocated != NULL) { | |
| 2373 for(int i=_allocated->length() - 1; i >= 0; i--) { | |
| 2374 if (_allocated->at(i) != NULL) { | |
| 2375 f->do_oop(_allocated->adr_at(i)); | |
| 2376 } | |
| 2377 } | |
| 2378 } | |
| 2379 } | |
| 2380 | |
| 2381 void JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(OopClosure* f) { | |
| 2382 // no-op if jvmti not enabled | |
| 2383 if (!JvmtiEnv::environments_might_exist()) { | |
| 2384 return; | |
| 2385 } | |
| 2386 | |
| 2387 // Runs at safepoint. So no need to acquire Threads_lock. | |
| 2388 for (JavaThread *jthr = Threads::first(); jthr != NULL; jthr = jthr->next()) { | |
| 2389 JvmtiThreadState *state = jthr->jvmti_thread_state(); | |
| 2390 if (state != NULL) { | |
| 2391 JvmtiVMObjectAllocEventCollector *collector; | |
| 2392 collector = state->get_vm_object_alloc_event_collector(); | |
| 2393 while (collector != NULL) { | |
| 2394 collector->oops_do(f); | |
| 2395 collector = (JvmtiVMObjectAllocEventCollector *)collector->get_prev(); | |
| 2396 } | |
| 2397 } | |
| 2398 } | |
| 2399 } | |
| 2400 | |
| 2401 | |
| 2402 // Disable collection of VMObjectAlloc events | |
| 2403 NoJvmtiVMObjectAllocMark::NoJvmtiVMObjectAllocMark() : _collector(NULL) { | |
| 2404 // a no-op if VMObjectAlloc event is not enabled | |
| 2405 if (!JvmtiExport::should_post_vm_object_alloc()) { | |
| 2406 return; | |
| 2407 } | |
| 2408 Thread* thread = ThreadLocalStorage::thread(); | |
| 2409 if (thread != NULL && thread->is_Java_thread()) { | |
| 2410 JavaThread* current_thread = (JavaThread*)thread; | |
| 2411 JvmtiThreadState *state = current_thread->jvmti_thread_state(); | |
| 2412 if (state != NULL) { | |
| 2413 JvmtiVMObjectAllocEventCollector *collector; | |
| 2414 collector = state->get_vm_object_alloc_event_collector(); | |
| 2415 if (collector != NULL && collector->is_enabled()) { | |
| 2416 _collector = collector; | |
| 2417 _collector->set_enabled(false); | |
| 2418 } | |
| 2419 } | |
| 2420 } | |
| 2421 } | |
| 2422 | |
| 2423 // Re-Enable collection of VMObjectAlloc events (if previously enabled) | |
| 2424 NoJvmtiVMObjectAllocMark::~NoJvmtiVMObjectAllocMark() { | |
| 2425 if (was_enabled()) { | |
| 2426 _collector->set_enabled(true); | |
| 2427 } | |
| 2428 }; | |
| 2429 | |
|
2125
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2430 JvmtiGCMarker::JvmtiGCMarker() { |
| 0 | 2431 // if there aren't any JVMTI environments then nothing to do |
| 2432 if (!JvmtiEnv::environments_might_exist()) { | |
| 2433 return; | |
| 2434 } | |
| 2435 | |
| 2436 if (JvmtiExport::should_post_garbage_collection_start()) { | |
| 2437 JvmtiExport::post_garbage_collection_start(); | |
| 2438 } | |
| 2439 | |
|
2125
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2440 if (SafepointSynchronize::is_at_safepoint()) { |
|
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2441 // Do clean up tasks that need to be done at a safepoint |
|
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2442 JvmtiEnvBase::check_for_periodic_clean_up(); |
| 0 | 2443 } |
| 2444 } | |
| 2445 | |
| 2446 JvmtiGCMarker::~JvmtiGCMarker() { | |
| 2447 // if there aren't any JVMTI environments then nothing to do | |
| 2448 if (!JvmtiEnv::environments_might_exist()) { | |
| 2449 return; | |
| 2450 } | |
| 2451 | |
| 2452 // JVMTI notify gc finish | |
| 2453 if (JvmtiExport::should_post_garbage_collection_finish()) { | |
| 2454 JvmtiExport::post_garbage_collection_finish(); | |
| 2455 } | |
| 2456 } |