Mercurial > hg > truffle
annotate src/share/vm/prims/jvmtiExport.cpp @ 2195:bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
Summary: Defer posting events from the compiler thread: use service thread
Reviewed-by: coleenp, dholmes, never, dcubed
| author | kamg |
|---|---|
| date | Wed, 02 Feb 2011 14:38:01 -0500 |
| parents | 3582bf76420e |
| children | f91db74a6810 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
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2 * Copyright (c) 2003, 2011, 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 | |
| 199 jclass to_jclass(klassOop klass) { return (klass == NULL ? NULL : (jclass)to_jobject(Klass::cast(klass)->java_mirror())); } | |
| 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: | |
| 223 JvmtiClassEventMark(JavaThread *thread, klassOop klass) : | |
| 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); | |
| 376 __ENTRY(jvmtiEnv*, JvmtiExport::get_jvmti_interface, current_thread) | |
| 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 *_cached_length_ptr = 0; | |
| 542 *_cached_data_ptr = NULL; | |
| 543 | |
| 544 _state = _thread->jvmti_thread_state(); | |
| 545 if (_state != NULL) { | |
| 546 _h_class_being_redefined = _state->get_class_being_redefined(); | |
| 547 _load_kind = _state->get_class_load_kind(); | |
| 548 // Clear class_being_redefined flag here. The action | |
| 549 // from agent handler could generate a new class file load | |
| 550 // hook event and if it is not cleared the new event generated | |
| 551 // from regular class file load could have this stale redefined | |
| 552 // class handle info. | |
| 553 _state->clear_class_being_redefined(); | |
| 554 } else { | |
| 555 // redefine and retransform will always set the thread state | |
| 556 _h_class_being_redefined = (KlassHandle *) NULL; | |
| 557 _load_kind = jvmti_class_load_kind_load; | |
| 558 } | |
| 559 } | |
| 560 | |
| 561 void post() { | |
| 562 // EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 563 // ("JVMTI [%s] class file load hook event triggered", | |
| 564 // JvmtiTrace::safe_get_thread_name(_thread))); | |
| 565 post_all_envs(); | |
| 566 copy_modified_data(); | |
| 567 } | |
| 568 | |
| 569 private: | |
| 570 void post_all_envs() { | |
| 571 if (_load_kind != jvmti_class_load_kind_retransform) { | |
| 572 // for class load and redefine, | |
| 573 // call the non-retransformable agents | |
| 574 JvmtiEnvIterator it; | |
| 575 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 576 if (!env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 577 // non-retransformable agents cannot retransform back, | |
| 578 // so no need to cache the original class file bytes | |
| 579 post_to_env(env, false); | |
| 580 } | |
| 581 } | |
| 582 } | |
| 583 JvmtiEnvIterator it; | |
| 584 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 585 // retransformable agents get all events | |
| 586 if (env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 587 // retransformable agents need to cache the original class file | |
| 588 // bytes if changes are made via the ClassFileLoadHook | |
| 589 post_to_env(env, true); | |
| 590 } | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 void post_to_env(JvmtiEnv* env, bool caching_needed) { | |
| 595 unsigned char *new_data = NULL; | |
| 596 jint new_len = 0; | |
| 597 // EVT_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 598 // ("JVMTI [%s] class file load hook event sent %s data_ptr = %d, data_len = %d", | |
| 599 // JvmtiTrace::safe_get_thread_name(_thread), | |
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600 // _h_name == NULL ? "NULL" : _h_name->as_utf8(), |
| 0 | 601 // _curr_data, _curr_len )); |
| 602 JvmtiClassFileLoadEventMark jem(_thread, _h_name, _class_loader, | |
| 603 _h_protection_domain, | |
| 604 _h_class_being_redefined); | |
| 605 JvmtiJavaThreadEventTransition jet(_thread); | |
| 606 JNIEnv* jni_env = (JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL)? | |
| 607 NULL : jem.jni_env(); | |
| 608 jvmtiEventClassFileLoadHook callback = env->callbacks()->ClassFileLoadHook; | |
| 609 if (callback != NULL) { | |
| 610 (*callback)(env->jvmti_external(), jni_env, | |
| 611 jem.class_being_redefined(), | |
| 612 jem.jloader(), jem.class_name(), | |
| 613 jem.protection_domain(), | |
| 614 _curr_len, _curr_data, | |
| 615 &new_len, &new_data); | |
| 616 } | |
| 617 if (new_data != NULL) { | |
| 618 // this agent has modified class data. | |
| 619 if (caching_needed && *_cached_data_ptr == NULL) { | |
| 620 // data has been changed by the new retransformable agent | |
| 621 // and it hasn't already been cached, cache it | |
| 622 *_cached_data_ptr = (unsigned char *)os::malloc(_curr_len); | |
| 623 memcpy(*_cached_data_ptr, _curr_data, _curr_len); | |
| 624 *_cached_length_ptr = _curr_len; | |
| 625 } | |
| 626 | |
| 627 if (_curr_data != *_data_ptr) { | |
| 628 // curr_data is previous agent modified class data. | |
| 629 // And this has been changed by the new agent so | |
| 630 // we can delete it now. | |
| 631 _curr_env->Deallocate(_curr_data); | |
| 632 } | |
| 633 | |
| 634 // Class file data has changed by the current agent. | |
| 635 _curr_data = new_data; | |
| 636 _curr_len = new_len; | |
| 637 // Save the current agent env we need this to deallocate the | |
| 638 // memory allocated by this agent. | |
| 639 _curr_env = env; | |
| 640 } | |
| 641 } | |
| 642 | |
| 643 void copy_modified_data() { | |
| 644 // if one of the agent has modified class file data. | |
| 645 // Copy modified class data to new resources array. | |
| 646 if (_curr_data != *_data_ptr) { | |
| 647 *_data_ptr = NEW_RESOURCE_ARRAY(u1, _curr_len); | |
| 648 memcpy(*_data_ptr, _curr_data, _curr_len); | |
| 649 *_end_ptr = *_data_ptr + _curr_len; | |
| 650 _curr_env->Deallocate(_curr_data); | |
| 651 } | |
| 652 } | |
| 653 }; | |
| 654 | |
| 655 bool JvmtiExport::_should_post_class_file_load_hook = false; | |
| 656 | |
| 657 // this entry is for class file load hook on class load, redefine and retransform | |
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658 void JvmtiExport::post_class_file_load_hook(Symbol* h_name, |
| 0 | 659 Handle class_loader, |
| 660 Handle h_protection_domain, | |
| 661 unsigned char **data_ptr, | |
| 662 unsigned char **end_ptr, | |
| 663 unsigned char **cached_data_ptr, | |
| 664 jint *cached_length_ptr) { | |
| 665 JvmtiClassFileLoadHookPoster poster(h_name, class_loader, | |
| 666 h_protection_domain, | |
| 667 data_ptr, end_ptr, | |
| 668 cached_data_ptr, | |
| 669 cached_length_ptr); | |
| 670 poster.post(); | |
| 671 } | |
| 672 | |
| 673 void JvmtiExport::report_unsupported(bool on) { | |
| 674 // If any JVMTI service is turned on, we need to exit before native code | |
| 675 // tries to access nonexistant services. | |
| 676 if (on) { | |
| 677 vm_exit_during_initialization("Java Kernel does not support JVMTI."); | |
| 678 } | |
| 679 } | |
| 680 | |
| 681 | |
| 682 #ifndef JVMTI_KERNEL | |
| 683 static inline klassOop oop_to_klassOop(oop obj) { | |
| 684 klassOop k = obj->klass(); | |
| 685 | |
| 686 // if the object is a java.lang.Class then return the java mirror | |
| 1142 | 687 if (k == SystemDictionary::Class_klass()) { |
| 0 | 688 if (!java_lang_Class::is_primitive(obj)) { |
| 689 k = java_lang_Class::as_klassOop(obj); | |
| 690 assert(k != NULL, "class for non-primitive mirror must exist"); | |
| 691 } | |
| 692 } | |
| 693 return k; | |
| 694 } | |
| 695 | |
| 696 class JvmtiVMObjectAllocEventMark : public JvmtiClassEventMark { | |
| 697 private: | |
| 698 jobject _jobj; | |
| 699 jlong _size; | |
| 700 public: | |
| 701 JvmtiVMObjectAllocEventMark(JavaThread *thread, oop obj) : JvmtiClassEventMark(thread, oop_to_klassOop(obj)) { | |
| 702 _jobj = (jobject)to_jobject(obj); | |
| 703 _size = obj->size() * wordSize; | |
| 704 }; | |
| 705 jobject jni_jobject() { return _jobj; } | |
| 706 jlong size() { return _size; } | |
| 707 }; | |
| 708 | |
| 709 class JvmtiCompiledMethodLoadEventMark : public JvmtiMethodEventMark { | |
| 710 private: | |
| 711 jint _code_size; | |
| 712 const void *_code_data; | |
| 713 jint _map_length; | |
| 714 jvmtiAddrLocationMap *_map; | |
| 715 const void *_compile_info; | |
| 716 public: | |
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717 JvmtiCompiledMethodLoadEventMark(JavaThread *thread, nmethod *nm, void* compile_info_ptr = NULL) |
| 0 | 718 : JvmtiMethodEventMark(thread,methodHandle(thread, nm->method())) { |
| 1748 | 719 _code_data = nm->insts_begin(); |
| 720 _code_size = nm->insts_size(); | |
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721 _compile_info = compile_info_ptr; // Set void pointer of compiledMethodLoad Event. Default value is NULL. |
| 0 | 722 JvmtiCodeBlobEvents::build_jvmti_addr_location_map(nm, &_map, &_map_length); |
| 723 } | |
| 724 ~JvmtiCompiledMethodLoadEventMark() { | |
| 725 FREE_C_HEAP_ARRAY(jvmtiAddrLocationMap, _map); | |
| 726 } | |
| 727 | |
| 728 jint code_size() { return _code_size; } | |
| 729 const void *code_data() { return _code_data; } | |
| 730 jint map_length() { return _map_length; } | |
| 731 const jvmtiAddrLocationMap* map() { return _map; } | |
| 732 const void *compile_info() { return _compile_info; } | |
| 733 }; | |
| 734 | |
| 735 | |
| 736 | |
| 737 class JvmtiMonitorEventMark : public JvmtiThreadEventMark { | |
| 738 private: | |
| 739 jobject _jobj; | |
| 740 public: | |
| 741 JvmtiMonitorEventMark(JavaThread *thread, oop object) | |
| 742 : JvmtiThreadEventMark(thread){ | |
| 743 _jobj = to_jobject(object); | |
| 744 } | |
| 745 jobject jni_object() { return _jobj; } | |
| 746 }; | |
| 747 | |
| 748 /////////////////////////////////////////////////////////////// | |
| 749 // | |
| 750 // pending CompiledMethodUnload support | |
| 751 // | |
| 752 | |
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753 void JvmtiExport::post_compiled_method_unload( |
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754 jmethodID method, const void *code_begin) { |
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755 JavaThread* thread = JavaThread::current(); |
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756 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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757 ("JVMTI [%s] method compile unload event triggered", |
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758 JvmtiTrace::safe_get_thread_name(thread))); |
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759 |
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760 // post the event for each environment that has this event enabled. |
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761 JvmtiEnvIterator it; |
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762 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
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763 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_UNLOAD)) { |
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764 |
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765 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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766 ("JVMTI [%s] class compile method unload event sent jmethodID " PTR_FORMAT, |
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767 JvmtiTrace::safe_get_thread_name(thread), method)); |
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768 |
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769 ResourceMark rm(thread); |
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770 |
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771 JvmtiEventMark jem(thread); |
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772 JvmtiJavaThreadEventTransition jet(thread); |
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773 jvmtiEventCompiledMethodUnload callback = env->callbacks()->CompiledMethodUnload; |
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774 if (callback != NULL) { |
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775 (*callback)(env->jvmti_external(), method, code_begin); |
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776 } |
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777 } |
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778 } |
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779 } |
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780 |
| 0 | 781 /////////////////////////////////////////////////////////////// |
| 782 // | |
| 783 // JvmtiExport | |
| 784 // | |
| 785 | |
| 786 void JvmtiExport::post_raw_breakpoint(JavaThread *thread, methodOop method, address location) { | |
| 787 HandleMark hm(thread); | |
| 788 methodHandle mh(thread, method); | |
| 789 | |
| 790 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 791 if (state == NULL) { | |
| 792 return; | |
| 793 } | |
| 794 EVT_TRIG_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Trg Breakpoint triggered", | |
| 795 JvmtiTrace::safe_get_thread_name(thread))); | |
| 796 JvmtiEnvThreadStateIterator it(state); | |
| 797 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 798 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_BREAKPOINT); | |
| 799 if (!ets->breakpoint_posted() && ets->is_enabled(JVMTI_EVENT_BREAKPOINT)) { | |
| 800 ThreadState old_os_state = thread->osthread()->get_state(); | |
| 801 thread->osthread()->set_state(BREAKPOINTED); | |
| 802 EVT_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Evt Breakpoint sent %s.%s @ %d", | |
| 803 JvmtiTrace::safe_get_thread_name(thread), | |
| 804 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 805 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 806 location - mh()->code_base() )); | |
| 807 | |
| 808 JvmtiEnv *env = ets->get_env(); | |
| 809 JvmtiLocationEventMark jem(thread, mh, location); | |
| 810 JvmtiJavaThreadEventTransition jet(thread); | |
| 811 jvmtiEventBreakpoint callback = env->callbacks()->Breakpoint; | |
| 812 if (callback != NULL) { | |
| 813 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 814 jem.jni_methodID(), jem.location()); | |
| 815 } | |
| 816 | |
| 817 ets->set_breakpoint_posted(); | |
| 818 thread->osthread()->set_state(old_os_state); | |
| 819 } | |
| 820 } | |
| 821 } | |
| 822 | |
| 823 ////////////////////////////////////////////////////////////////////////////// | |
| 824 | |
| 825 bool JvmtiExport::_can_get_source_debug_extension = false; | |
| 826 bool JvmtiExport::_can_maintain_original_method_order = false; | |
| 827 bool JvmtiExport::_can_post_interpreter_events = false; | |
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828 bool JvmtiExport::_can_post_on_exceptions = false; |
| 0 | 829 bool JvmtiExport::_can_post_breakpoint = false; |
| 830 bool JvmtiExport::_can_post_field_access = false; | |
| 831 bool JvmtiExport::_can_post_field_modification = false; | |
| 832 bool JvmtiExport::_can_post_method_entry = false; | |
| 833 bool JvmtiExport::_can_post_method_exit = false; | |
| 834 bool JvmtiExport::_can_pop_frame = false; | |
| 835 bool JvmtiExport::_can_force_early_return = false; | |
| 836 | |
| 837 bool JvmtiExport::_should_post_single_step = false; | |
| 838 bool JvmtiExport::_should_post_field_access = false; | |
| 839 bool JvmtiExport::_should_post_field_modification = false; | |
| 840 bool JvmtiExport::_should_post_class_load = false; | |
| 841 bool JvmtiExport::_should_post_class_prepare = false; | |
| 842 bool JvmtiExport::_should_post_class_unload = false; | |
| 843 bool JvmtiExport::_should_post_thread_life = false; | |
| 844 bool JvmtiExport::_should_clean_up_heap_objects = false; | |
| 845 bool JvmtiExport::_should_post_native_method_bind = false; | |
| 846 bool JvmtiExport::_should_post_dynamic_code_generated = false; | |
| 847 bool JvmtiExport::_should_post_data_dump = false; | |
| 848 bool JvmtiExport::_should_post_compiled_method_load = false; | |
| 849 bool JvmtiExport::_should_post_compiled_method_unload = false; | |
| 850 bool JvmtiExport::_should_post_monitor_contended_enter = false; | |
| 851 bool JvmtiExport::_should_post_monitor_contended_entered = false; | |
| 852 bool JvmtiExport::_should_post_monitor_wait = false; | |
| 853 bool JvmtiExport::_should_post_monitor_waited = false; | |
| 854 bool JvmtiExport::_should_post_garbage_collection_start = false; | |
| 855 bool JvmtiExport::_should_post_garbage_collection_finish = false; | |
| 856 bool JvmtiExport::_should_post_object_free = false; | |
| 857 bool JvmtiExport::_should_post_resource_exhausted = false; | |
| 858 bool JvmtiExport::_should_post_vm_object_alloc = false; | |
|
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859 bool JvmtiExport::_should_post_on_exceptions = false; |
| 0 | 860 |
| 861 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 862 | |
| 863 | |
| 864 // | |
| 865 // JVMTI single step management | |
| 866 // | |
| 867 void JvmtiExport::at_single_stepping_point(JavaThread *thread, methodOop method, address location) { | |
| 868 assert(JvmtiExport::should_post_single_step(), "must be single stepping"); | |
| 869 | |
| 870 HandleMark hm(thread); | |
| 871 methodHandle mh(thread, method); | |
| 872 | |
| 873 // update information about current location and post a step event | |
| 874 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 875 if (state == NULL) { | |
| 876 return; | |
| 877 } | |
| 878 EVT_TRIG_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Trg Single Step triggered", | |
| 879 JvmtiTrace::safe_get_thread_name(thread))); | |
| 880 if (!state->hide_single_stepping()) { | |
| 881 if (state->is_pending_step_for_popframe()) { | |
| 882 state->process_pending_step_for_popframe(); | |
| 883 } | |
| 884 if (state->is_pending_step_for_earlyret()) { | |
| 885 state->process_pending_step_for_earlyret(); | |
| 886 } | |
| 887 JvmtiExport::post_single_step(thread, mh(), location); | |
| 888 } | |
| 889 } | |
| 890 | |
| 891 | |
| 892 void JvmtiExport::expose_single_stepping(JavaThread *thread) { | |
| 893 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 894 if (state != NULL) { | |
| 895 state->clear_hide_single_stepping(); | |
| 896 } | |
| 897 } | |
| 898 | |
| 899 | |
| 900 bool JvmtiExport::hide_single_stepping(JavaThread *thread) { | |
| 901 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 902 if (state != NULL && state->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 903 state->set_hide_single_stepping(); | |
| 904 return true; | |
| 905 } else { | |
| 906 return false; | |
| 907 } | |
| 908 } | |
| 909 | |
| 910 void JvmtiExport::post_class_load(JavaThread *thread, klassOop klass) { | |
| 911 HandleMark hm(thread); | |
| 912 KlassHandle kh(thread, klass); | |
| 913 | |
| 914 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Trg Class Load triggered", | |
| 915 JvmtiTrace::safe_get_thread_name(thread))); | |
| 916 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 917 if (state == NULL) { | |
| 918 return; | |
| 919 } | |
| 920 JvmtiEnvThreadStateIterator it(state); | |
| 921 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 922 if (ets->is_enabled(JVMTI_EVENT_CLASS_LOAD)) { | |
| 923 EVT_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Evt Class Load sent %s", | |
| 924 JvmtiTrace::safe_get_thread_name(thread), | |
| 925 kh()==NULL? "NULL" : Klass::cast(kh())->external_name() )); | |
| 926 | |
| 927 JvmtiEnv *env = ets->get_env(); | |
| 928 JvmtiClassEventMark jem(thread, kh()); | |
| 929 JvmtiJavaThreadEventTransition jet(thread); | |
| 930 jvmtiEventClassLoad callback = env->callbacks()->ClassLoad; | |
| 931 if (callback != NULL) { | |
| 932 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 933 } | |
| 934 } | |
| 935 } | |
| 936 } | |
| 937 | |
| 938 | |
| 939 void JvmtiExport::post_class_prepare(JavaThread *thread, klassOop klass) { | |
| 940 HandleMark hm(thread); | |
| 941 KlassHandle kh(thread, klass); | |
| 942 | |
| 943 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Trg Class Prepare triggered", | |
| 944 JvmtiTrace::safe_get_thread_name(thread))); | |
| 945 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 946 if (state == NULL) { | |
| 947 return; | |
| 948 } | |
| 949 JvmtiEnvThreadStateIterator it(state); | |
| 950 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 951 if (ets->is_enabled(JVMTI_EVENT_CLASS_PREPARE)) { | |
| 952 EVT_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Evt Class Prepare sent %s", | |
| 953 JvmtiTrace::safe_get_thread_name(thread), | |
| 954 kh()==NULL? "NULL" : Klass::cast(kh())->external_name() )); | |
| 955 | |
| 956 JvmtiEnv *env = ets->get_env(); | |
| 957 JvmtiClassEventMark jem(thread, kh()); | |
| 958 JvmtiJavaThreadEventTransition jet(thread); | |
| 959 jvmtiEventClassPrepare callback = env->callbacks()->ClassPrepare; | |
| 960 if (callback != NULL) { | |
| 961 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 962 } | |
| 963 } | |
| 964 } | |
| 965 } | |
| 966 | |
| 967 void JvmtiExport::post_class_unload(klassOop klass) { | |
| 968 Thread *thread = Thread::current(); | |
| 969 HandleMark hm(thread); | |
| 970 KlassHandle kh(thread, klass); | |
| 971 | |
| 972 EVT_TRIG_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Trg Class Unload triggered" )); | |
| 973 if (JvmtiEventController::is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 974 assert(thread->is_VM_thread(), "wrong thread"); | |
| 975 | |
| 976 // get JavaThread for whom we are proxy | |
| 977 JavaThread *real_thread = | |
| 978 (JavaThread *)((VMThread *)thread)->vm_operation()->calling_thread(); | |
| 979 | |
| 980 JvmtiEnvIterator it; | |
| 981 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 982 if (env->is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 983 EVT_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Evt Class Unload sent %s", | |
| 984 kh()==NULL? "NULL" : Klass::cast(kh())->external_name() )); | |
| 985 | |
| 986 // do everything manually, since this is a proxy - needs special care | |
| 987 JNIEnv* jni_env = real_thread->jni_environment(); | |
| 988 jthread jt = (jthread)JNIHandles::make_local(real_thread, real_thread->threadObj()); | |
| 989 jclass jk = (jclass)JNIHandles::make_local(real_thread, Klass::cast(kh())->java_mirror()); | |
| 990 | |
| 991 // Before we call the JVMTI agent, we have to set the state in the | |
| 992 // thread for which we are proxying. | |
| 993 JavaThreadState prev_state = real_thread->thread_state(); | |
| 994 assert(prev_state == _thread_blocked, "JavaThread should be at safepoint"); | |
| 995 real_thread->set_thread_state(_thread_in_native); | |
| 996 | |
| 997 jvmtiExtensionEvent callback = env->ext_callbacks()->ClassUnload; | |
| 998 if (callback != NULL) { | |
| 999 (*callback)(env->jvmti_external(), jni_env, jt, jk); | |
| 1000 } | |
| 1001 | |
| 1002 assert(real_thread->thread_state() == _thread_in_native, | |
| 1003 "JavaThread should be in native"); | |
| 1004 real_thread->set_thread_state(prev_state); | |
| 1005 | |
| 1006 JNIHandles::destroy_local(jk); | |
| 1007 JNIHandles::destroy_local(jt); | |
| 1008 } | |
| 1009 } | |
| 1010 } | |
| 1011 } | |
| 1012 | |
| 1013 | |
| 1014 void JvmtiExport::post_thread_start(JavaThread *thread) { | |
| 1015 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1016 | |
| 1017 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Trg Thread Start event triggered", | |
| 1018 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1019 | |
| 1020 // do JVMTI thread initialization (if needed) | |
| 1021 JvmtiEventController::thread_started(thread); | |
| 1022 | |
| 1023 // Do not post thread start event for hidden java thread. | |
| 1024 if (JvmtiEventController::is_enabled(JVMTI_EVENT_THREAD_START) && | |
| 1025 !thread->is_hidden_from_external_view()) { | |
| 1026 JvmtiEnvIterator it; | |
| 1027 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1028 if (env->is_enabled(JVMTI_EVENT_THREAD_START)) { | |
| 1029 EVT_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Evt Thread Start event sent", | |
| 1030 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1031 | |
| 1032 JvmtiThreadEventMark jem(thread); | |
| 1033 JvmtiJavaThreadEventTransition jet(thread); | |
| 1034 jvmtiEventThreadStart callback = env->callbacks()->ThreadStart; | |
| 1035 if (callback != NULL) { | |
| 1036 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1037 } | |
| 1038 } | |
| 1039 } | |
| 1040 } | |
| 1041 } | |
| 1042 | |
| 1043 | |
| 1044 void JvmtiExport::post_thread_end(JavaThread *thread) { | |
| 1045 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Trg Thread End event triggered", | |
| 1046 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1047 | |
| 1048 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1049 if (state == NULL) { | |
| 1050 return; | |
| 1051 } | |
| 1052 | |
| 1053 // Do not post thread end event for hidden java thread. | |
| 1054 if (state->is_enabled(JVMTI_EVENT_THREAD_END) && | |
| 1055 !thread->is_hidden_from_external_view()) { | |
| 1056 | |
| 1057 JvmtiEnvThreadStateIterator it(state); | |
| 1058 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1059 if (ets->is_enabled(JVMTI_EVENT_THREAD_END)) { | |
| 1060 EVT_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Evt Thread End event sent", | |
| 1061 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1062 | |
| 1063 JvmtiEnv *env = ets->get_env(); | |
| 1064 JvmtiThreadEventMark jem(thread); | |
| 1065 JvmtiJavaThreadEventTransition jet(thread); | |
| 1066 jvmtiEventThreadEnd callback = env->callbacks()->ThreadEnd; | |
| 1067 if (callback != NULL) { | |
| 1068 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1069 } | |
| 1070 } | |
| 1071 } | |
| 1072 } | |
| 1073 } | |
| 1074 | |
| 1075 void JvmtiExport::post_object_free(JvmtiEnv* env, jlong tag) { | |
| 1076 assert(SafepointSynchronize::is_at_safepoint(), "must be executed at safepoint"); | |
| 1077 assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE), "checking"); | |
| 1078 | |
| 1079 EVT_TRIG_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Trg Object Free triggered" )); | |
| 1080 EVT_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Evt Object Free sent")); | |
| 1081 | |
| 1082 jvmtiEventObjectFree callback = env->callbacks()->ObjectFree; | |
| 1083 if (callback != NULL) { | |
| 1084 (*callback)(env->jvmti_external(), tag); | |
| 1085 } | |
| 1086 } | |
| 1087 | |
| 1088 void JvmtiExport::post_resource_exhausted(jint resource_exhausted_flags, const char* description) { | |
| 1089 EVT_TRIG_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Trg resource exhausted event triggered" )); | |
| 1090 | |
| 1091 JvmtiEnvIterator it; | |
| 1092 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1093 if (env->is_enabled(JVMTI_EVENT_RESOURCE_EXHAUSTED)) { | |
| 1094 EVT_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Evt resource exhausted event sent" )); | |
| 1095 | |
| 1096 JavaThread *thread = JavaThread::current(); | |
| 1097 JvmtiThreadEventMark jem(thread); | |
| 1098 JvmtiJavaThreadEventTransition jet(thread); | |
| 1099 jvmtiEventResourceExhausted callback = env->callbacks()->ResourceExhausted; | |
| 1100 if (callback != NULL) { | |
| 1101 (*callback)(env->jvmti_external(), jem.jni_env(), | |
| 1102 resource_exhausted_flags, NULL, description); | |
| 1103 } | |
| 1104 } | |
| 1105 } | |
| 1106 } | |
| 1107 | |
| 1108 void JvmtiExport::post_method_entry(JavaThread *thread, methodOop method, frame current_frame) { | |
| 1109 HandleMark hm(thread); | |
| 1110 methodHandle mh(thread, method); | |
| 1111 | |
| 1112 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Trg Method Entry triggered %s.%s", | |
| 1113 JvmtiTrace::safe_get_thread_name(thread), | |
| 1114 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1115 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1116 | |
| 1117 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 1118 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1119 // for any thread that actually wants method entry, interp_only_mode is set | |
| 1120 return; | |
| 1121 } | |
| 1122 | |
| 1123 state->incr_cur_stack_depth(); | |
| 1124 | |
| 1125 if (state->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1126 JvmtiEnvThreadStateIterator it(state); | |
| 1127 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1128 if (ets->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1129 EVT_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Evt Method Entry sent %s.%s", | |
| 1130 JvmtiTrace::safe_get_thread_name(thread), | |
| 1131 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1132 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1133 | |
| 1134 JvmtiEnv *env = ets->get_env(); | |
| 1135 JvmtiMethodEventMark jem(thread, mh); | |
| 1136 JvmtiJavaThreadEventTransition jet(thread); | |
| 1137 jvmtiEventMethodEntry callback = env->callbacks()->MethodEntry; | |
| 1138 if (callback != NULL) { | |
| 1139 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_methodID()); | |
| 1140 } | |
| 1141 } | |
| 1142 } | |
| 1143 } | |
| 1144 } | |
| 1145 | |
| 1146 void JvmtiExport::post_method_exit(JavaThread *thread, methodOop method, frame current_frame) { | |
| 1147 HandleMark hm(thread); | |
| 1148 methodHandle mh(thread, method); | |
| 1149 | |
| 1150 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Trg Method Exit triggered %s.%s", | |
| 1151 JvmtiTrace::safe_get_thread_name(thread), | |
| 1152 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1153 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1154 | |
| 1155 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1156 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1157 // for any thread that actually wants method exit, interp_only_mode is set | |
| 1158 return; | |
| 1159 } | |
| 1160 | |
| 1161 // return a flag when a method terminates by throwing an exception | |
| 1162 // i.e. if an exception is thrown and it's not caught by the current method | |
| 1163 bool exception_exit = state->is_exception_detected() && !state->is_exception_caught(); | |
| 1164 | |
| 1165 | |
| 1166 if (state->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1167 Handle result; | |
| 1168 jvalue value; | |
| 1169 value.j = 0L; | |
| 1170 | |
| 1171 // if the method hasn't been popped because of an exception then we populate | |
| 1172 // the return_value parameter for the callback. At this point we only have | |
| 1173 // the address of a "raw result" and we just call into the interpreter to | |
| 1174 // convert this into a jvalue. | |
| 1175 if (!exception_exit) { | |
| 1176 oop oop_result; | |
| 1177 BasicType type = current_frame.interpreter_frame_result(&oop_result, &value); | |
| 1178 if (type == T_OBJECT || type == T_ARRAY) { | |
| 1179 result = Handle(thread, oop_result); | |
| 1180 } | |
| 1181 } | |
| 1182 | |
| 1183 JvmtiEnvThreadStateIterator it(state); | |
| 1184 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1185 if (ets->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1186 EVT_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Evt Method Exit sent %s.%s", | |
| 1187 JvmtiTrace::safe_get_thread_name(thread), | |
| 1188 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1189 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1190 | |
| 1191 JvmtiEnv *env = ets->get_env(); | |
| 1192 JvmtiMethodEventMark jem(thread, mh); | |
| 1193 if (result.not_null()) { | |
| 1194 value.l = JNIHandles::make_local(thread, result()); | |
| 1195 } | |
| 1196 JvmtiJavaThreadEventTransition jet(thread); | |
| 1197 jvmtiEventMethodExit callback = env->callbacks()->MethodExit; | |
| 1198 if (callback != NULL) { | |
| 1199 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1200 jem.jni_methodID(), exception_exit, value); | |
| 1201 } | |
| 1202 } | |
| 1203 } | |
| 1204 } | |
| 1205 | |
| 1206 if (state->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1207 JvmtiEnvThreadStateIterator it(state); | |
| 1208 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1209 int cur_frame_number = state->cur_stack_depth(); | |
| 1210 | |
| 1211 if (ets->is_frame_pop(cur_frame_number)) { | |
| 1212 // we have a NotifyFramePop entry for this frame. | |
| 1213 // now check that this env/thread wants this event | |
| 1214 if (ets->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1215 EVT_TRACE(JVMTI_EVENT_FRAME_POP, ("JVMTI [%s] Evt Frame Pop sent %s.%s", | |
| 1216 JvmtiTrace::safe_get_thread_name(thread), | |
| 1217 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1218 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1219 | |
| 1220 // we also need to issue a frame pop event for this frame | |
| 1221 JvmtiEnv *env = ets->get_env(); | |
| 1222 JvmtiMethodEventMark jem(thread, mh); | |
| 1223 JvmtiJavaThreadEventTransition jet(thread); | |
| 1224 jvmtiEventFramePop callback = env->callbacks()->FramePop; | |
| 1225 if (callback != NULL) { | |
| 1226 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1227 jem.jni_methodID(), exception_exit); | |
| 1228 } | |
| 1229 } | |
| 1230 // remove the frame's entry | |
| 1231 ets->clear_frame_pop(cur_frame_number); | |
| 1232 } | |
| 1233 } | |
| 1234 } | |
| 1235 | |
| 1236 state->decr_cur_stack_depth(); | |
| 1237 } | |
| 1238 | |
| 1239 | |
| 1240 // Todo: inline this for optimization | |
| 1241 void JvmtiExport::post_single_step(JavaThread *thread, methodOop method, address location) { | |
| 1242 HandleMark hm(thread); | |
| 1243 methodHandle mh(thread, method); | |
| 1244 | |
| 1245 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1246 if (state == NULL) { | |
| 1247 return; | |
| 1248 } | |
| 1249 JvmtiEnvThreadStateIterator it(state); | |
| 1250 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1251 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_SINGLE_STEP); | |
| 1252 if (!ets->single_stepping_posted() && ets->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 1253 EVT_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Evt Single Step sent %s.%s @ %d", | |
| 1254 JvmtiTrace::safe_get_thread_name(thread), | |
| 1255 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1256 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1257 location - mh()->code_base() )); | |
| 1258 | |
| 1259 JvmtiEnv *env = ets->get_env(); | |
| 1260 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1261 JvmtiJavaThreadEventTransition jet(thread); | |
| 1262 jvmtiEventSingleStep callback = env->callbacks()->SingleStep; | |
| 1263 if (callback != NULL) { | |
| 1264 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1265 jem.jni_methodID(), jem.location()); | |
| 1266 } | |
| 1267 | |
| 1268 ets->set_single_stepping_posted(); | |
| 1269 } | |
| 1270 } | |
| 1271 } | |
| 1272 | |
| 1273 | |
| 1274 void JvmtiExport::post_exception_throw(JavaThread *thread, methodOop method, address location, oop exception) { | |
| 1275 HandleMark hm(thread); | |
| 1276 methodHandle mh(thread, method); | |
| 1277 Handle exception_handle(thread, exception); | |
| 1278 | |
| 1279 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1280 if (state == NULL) { | |
| 1281 return; | |
| 1282 } | |
| 1283 | |
| 1284 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION, ("JVMTI [%s] Trg Exception thrown triggered", | |
| 1285 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1286 if (!state->is_exception_detected()) { | |
| 1287 state->set_exception_detected(); | |
| 1288 JvmtiEnvThreadStateIterator it(state); | |
| 1289 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1290 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION) && (exception != NULL)) { | |
| 1291 | |
| 1292 EVT_TRACE(JVMTI_EVENT_EXCEPTION, | |
| 1293 ("JVMTI [%s] Evt Exception thrown sent %s.%s @ %d", | |
| 1294 JvmtiTrace::safe_get_thread_name(thread), | |
| 1295 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1296 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1297 location - mh()->code_base() )); | |
| 1298 | |
| 1299 JvmtiEnv *env = ets->get_env(); | |
| 1300 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1301 | |
| 1302 // It's okay to clear these exceptions here because we duplicate | |
| 1303 // this lookup in InterpreterRuntime::exception_handler_for_exception. | |
| 1304 EXCEPTION_MARK; | |
| 1305 | |
| 1306 bool should_repeat; | |
| 1307 vframeStream st(thread); | |
| 1308 assert(!st.at_end(), "cannot be at end"); | |
| 1309 methodOop current_method = NULL; | |
| 1310 int current_bci = -1; | |
| 1311 do { | |
| 1312 current_method = st.method(); | |
| 1313 current_bci = st.bci(); | |
| 1314 do { | |
| 1315 should_repeat = false; | |
| 1316 KlassHandle eh_klass(thread, exception_handle()->klass()); | |
| 1317 current_bci = current_method->fast_exception_handler_bci_for( | |
| 1318 eh_klass, current_bci, THREAD); | |
| 1319 if (HAS_PENDING_EXCEPTION) { | |
| 1320 exception_handle = KlassHandle(thread, PENDING_EXCEPTION); | |
| 1321 CLEAR_PENDING_EXCEPTION; | |
| 1322 should_repeat = true; | |
| 1323 } | |
| 1324 } while (should_repeat && (current_bci != -1)); | |
| 1325 st.next(); | |
| 1326 } while ((current_bci < 0) && (!st.at_end())); | |
| 1327 | |
| 1328 jmethodID catch_jmethodID; | |
| 1329 if (current_bci < 0) { | |
| 1330 catch_jmethodID = 0; | |
| 1331 current_bci = 0; | |
| 1332 } else { | |
| 1333 catch_jmethodID = jem.to_jmethodID( | |
| 1334 methodHandle(thread, current_method)); | |
| 1335 } | |
| 1336 | |
| 1337 JvmtiJavaThreadEventTransition jet(thread); | |
| 1338 jvmtiEventException callback = env->callbacks()->Exception; | |
| 1339 if (callback != NULL) { | |
| 1340 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1341 jem.jni_methodID(), jem.location(), | |
| 1342 jem.exception(), | |
| 1343 catch_jmethodID, current_bci); | |
| 1344 } | |
| 1345 } | |
| 1346 } | |
| 1347 } | |
| 1348 | |
| 1349 // frames may get popped because of this throw, be safe - invalidate cached depth | |
| 1350 state->invalidate_cur_stack_depth(); | |
| 1351 } | |
| 1352 | |
| 1353 | |
| 1354 void JvmtiExport::notice_unwind_due_to_exception(JavaThread *thread, methodOop method, address location, oop exception, bool in_handler_frame) { | |
| 1355 HandleMark hm(thread); | |
| 1356 methodHandle mh(thread, method); | |
| 1357 Handle exception_handle(thread, exception); | |
| 1358 | |
| 1359 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1360 if (state == NULL) { | |
| 1361 return; | |
| 1362 } | |
| 1363 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1364 ("JVMTI [%s] Trg unwind_due_to_exception triggered %s.%s @ %s%d - %s", | |
| 1365 JvmtiTrace::safe_get_thread_name(thread), | |
| 1366 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1367 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1368 location==0? "no location:" : "", | |
| 1369 location==0? 0 : location - mh()->code_base(), | |
| 1370 in_handler_frame? "in handler frame" : "not handler frame" )); | |
| 1371 | |
| 1372 if (state->is_exception_detected()) { | |
| 1373 | |
| 1374 state->invalidate_cur_stack_depth(); | |
| 1375 if (!in_handler_frame) { | |
| 1376 // Not in exception handler. | |
| 1377 if(state->is_interp_only_mode()) { | |
| 1378 // method exit and frame pop events are posted only in interp mode. | |
| 1379 // When these events are enabled code should be in running in interp mode. | |
| 1380 JvmtiExport::post_method_exit(thread, method, thread->last_frame()); | |
| 1381 // The cached cur_stack_depth might have changed from the | |
| 1382 // operations of frame pop or method exit. We are not 100% sure | |
| 1383 // the cached cur_stack_depth is still valid depth so invalidate | |
| 1384 // it. | |
| 1385 state->invalidate_cur_stack_depth(); | |
| 1386 } | |
| 1387 } else { | |
| 1388 // In exception handler frame. Report exception catch. | |
| 1389 assert(location != NULL, "must be a known location"); | |
| 1390 // Update cur_stack_depth - the frames above the current frame | |
| 1391 // have been unwound due to this exception: | |
| 1392 assert(!state->is_exception_caught(), "exception must not be caught yet."); | |
| 1393 state->set_exception_caught(); | |
| 1394 | |
| 1395 JvmtiEnvThreadStateIterator it(state); | |
| 1396 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1397 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION_CATCH) && (exception_handle() != NULL)) { | |
| 1398 EVT_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1399 ("JVMTI [%s] Evt ExceptionCatch sent %s.%s @ %d", | |
| 1400 JvmtiTrace::safe_get_thread_name(thread), | |
| 1401 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1402 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1403 location - mh()->code_base() )); | |
| 1404 | |
| 1405 JvmtiEnv *env = ets->get_env(); | |
| 1406 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1407 JvmtiJavaThreadEventTransition jet(thread); | |
| 1408 jvmtiEventExceptionCatch callback = env->callbacks()->ExceptionCatch; | |
| 1409 if (callback != NULL) { | |
| 1410 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1411 jem.jni_methodID(), jem.location(), | |
| 1412 jem.exception()); | |
| 1413 } | |
| 1414 } | |
| 1415 } | |
| 1416 } | |
| 1417 } | |
| 1418 } | |
| 1419 | |
| 1420 oop JvmtiExport::jni_GetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
| 1421 klassOop klass, jfieldID fieldID, bool is_static) { | |
| 1422 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1423 // At least one field access watch is set so we have more work | |
| 1424 // to do. This wrapper is used by entry points that allow us | |
| 1425 // to create handles in post_field_access_by_jni(). | |
| 1426 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1427 // event posting can block so refetch oop if we were passed a jobj | |
| 1428 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1429 } | |
| 1430 return obj; | |
| 1431 } | |
| 1432 | |
| 1433 oop JvmtiExport::jni_GetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
| 1434 klassOop klass, jfieldID fieldID, bool is_static) { | |
| 1435 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1436 // At least one field access watch is set so we have more work | |
| 1437 // to do. This wrapper is used by "quick" entry points that don't | |
| 1438 // allow us to create handles in post_field_access_by_jni(). We | |
| 1439 // override that with a ResetNoHandleMark. | |
| 1440 ResetNoHandleMark rnhm; | |
| 1441 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1442 // event posting can block so refetch oop if we were passed a jobj | |
| 1443 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1444 } | |
| 1445 return obj; | |
| 1446 } | |
| 1447 | |
| 1448 void JvmtiExport::post_field_access_by_jni(JavaThread *thread, oop obj, | |
| 1449 klassOop klass, jfieldID fieldID, bool is_static) { | |
| 1450 // We must be called with a Java context in order to provide reasonable | |
| 1451 // values for the klazz, method, and location fields. The callers of this | |
| 1452 // function don't make the call unless there is a Java context. | |
| 1453 assert(thread->has_last_Java_frame(), "must be called with a Java context"); | |
| 1454 | |
| 1455 ResourceMark rm; | |
| 1456 fieldDescriptor fd; | |
| 1457 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1458 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1459 assert(valid_fieldID == true,"post_field_access_by_jni called with invalid fieldID"); | |
| 1460 if (!valid_fieldID) return; | |
| 1461 // field accesses are not watched so bail | |
| 1462 if (!fd.is_field_access_watched()) return; | |
| 1463 | |
| 1464 HandleMark hm(thread); | |
| 1465 KlassHandle h_klass(thread, klass); | |
| 1466 Handle h_obj; | |
| 1467 if (!is_static) { | |
| 1468 // non-static field accessors have an object, but we need a handle | |
| 1469 assert(obj != NULL, "non-static needs an object"); | |
| 1470 h_obj = Handle(thread, obj); | |
| 1471 } | |
| 1472 post_field_access(thread, | |
| 1473 thread->last_frame().interpreter_frame_method(), | |
| 1474 thread->last_frame().interpreter_frame_bcp(), | |
| 1475 h_klass, h_obj, fieldID); | |
| 1476 } | |
| 1477 | |
| 1478 void JvmtiExport::post_field_access(JavaThread *thread, methodOop method, | |
| 1479 address location, KlassHandle field_klass, Handle object, jfieldID field) { | |
| 1480 | |
| 1481 HandleMark hm(thread); | |
| 1482 methodHandle mh(thread, method); | |
| 1483 | |
| 1484 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1485 if (state == NULL) { | |
| 1486 return; | |
| 1487 } | |
| 1488 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Trg Field Access event triggered", | |
| 1489 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1490 JvmtiEnvThreadStateIterator it(state); | |
| 1491 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1492 if (ets->is_enabled(JVMTI_EVENT_FIELD_ACCESS)) { | |
| 1493 EVT_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Evt Field Access event sent %s.%s @ %d", | |
| 1494 JvmtiTrace::safe_get_thread_name(thread), | |
| 1495 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1496 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1497 location - mh()->code_base() )); | |
| 1498 | |
| 1499 JvmtiEnv *env = ets->get_env(); | |
| 1500 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1501 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1502 jobject field_jobject = jem.to_jobject(object()); | |
| 1503 JvmtiJavaThreadEventTransition jet(thread); | |
| 1504 jvmtiEventFieldAccess callback = env->callbacks()->FieldAccess; | |
| 1505 if (callback != NULL) { | |
| 1506 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1507 jem.jni_methodID(), jem.location(), | |
| 1508 field_jclass, field_jobject, field); | |
| 1509 } | |
| 1510 } | |
| 1511 } | |
| 1512 } | |
| 1513 | |
| 1514 oop JvmtiExport::jni_SetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
| 1515 klassOop klass, jfieldID fieldID, bool is_static, | |
| 1516 char sig_type, jvalue *value) { | |
| 1517 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1518 // At least one field modification watch is set so we have more work | |
| 1519 // to do. This wrapper is used by entry points that allow us | |
| 1520 // to create handles in post_field_modification_by_jni(). | |
| 1521 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1522 // event posting can block so refetch oop if we were passed a jobj | |
| 1523 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1524 } | |
| 1525 return obj; | |
| 1526 } | |
| 1527 | |
| 1528 oop JvmtiExport::jni_SetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
| 1529 klassOop klass, jfieldID fieldID, bool is_static, | |
| 1530 char sig_type, jvalue *value) { | |
| 1531 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1532 // At least one field modification watch is set so we have more work | |
| 1533 // to do. This wrapper is used by "quick" entry points that don't | |
| 1534 // allow us to create handles in post_field_modification_by_jni(). We | |
| 1535 // override that with a ResetNoHandleMark. | |
| 1536 ResetNoHandleMark rnhm; | |
| 1537 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1538 // event posting can block so refetch oop if we were passed a jobj | |
| 1539 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1540 } | |
| 1541 return obj; | |
| 1542 } | |
| 1543 | |
| 1544 void JvmtiExport::post_field_modification_by_jni(JavaThread *thread, oop obj, | |
| 1545 klassOop klass, jfieldID fieldID, bool is_static, | |
| 1546 char sig_type, jvalue *value) { | |
| 1547 // We must be called with a Java context in order to provide reasonable | |
| 1548 // values for the klazz, method, and location fields. The callers of this | |
| 1549 // function don't make the call unless there is a Java context. | |
| 1550 assert(thread->has_last_Java_frame(), "must be called with Java context"); | |
| 1551 | |
| 1552 ResourceMark rm; | |
| 1553 fieldDescriptor fd; | |
| 1554 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1555 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1556 assert(valid_fieldID == true,"post_field_modification_by_jni called with invalid fieldID"); | |
| 1557 if (!valid_fieldID) return; | |
| 1558 // field modifications are not watched so bail | |
| 1559 if (!fd.is_field_modification_watched()) return; | |
| 1560 | |
| 1561 HandleMark hm(thread); | |
| 1562 | |
| 1563 Handle h_obj; | |
| 1564 if (!is_static) { | |
| 1565 // non-static field accessors have an object, but we need a handle | |
| 1566 assert(obj != NULL, "non-static needs an object"); | |
| 1567 h_obj = Handle(thread, obj); | |
| 1568 } | |
| 1569 KlassHandle h_klass(thread, klass); | |
| 1570 post_field_modification(thread, | |
| 1571 thread->last_frame().interpreter_frame_method(), | |
| 1572 thread->last_frame().interpreter_frame_bcp(), | |
| 1573 h_klass, h_obj, fieldID, sig_type, value); | |
| 1574 } | |
| 1575 | |
| 1576 void JvmtiExport::post_raw_field_modification(JavaThread *thread, methodOop method, | |
| 1577 address location, KlassHandle field_klass, Handle object, jfieldID field, | |
| 1578 char sig_type, jvalue *value) { | |
| 1579 | |
| 1580 if (sig_type == 'I' || sig_type == 'Z' || sig_type == 'C' || sig_type == 'S') { | |
| 1581 // 'I' instructions are used for byte, char, short and int. | |
| 1582 // determine which it really is, and convert | |
| 1583 fieldDescriptor fd; | |
| 1584 bool found = JvmtiEnv::get_field_descriptor(field_klass(), field, &fd); | |
| 1585 // should be found (if not, leave as is) | |
| 1586 if (found) { | |
| 1587 jint ival = value->i; | |
| 1588 // convert value from int to appropriate type | |
| 1589 switch (fd.field_type()) { | |
| 1590 case T_BOOLEAN: | |
| 1591 sig_type = 'Z'; | |
| 1592 value->i = 0; // clear it | |
| 1593 value->z = (jboolean)ival; | |
| 1594 break; | |
| 1595 case T_BYTE: | |
| 1596 sig_type = 'B'; | |
| 1597 value->i = 0; // clear it | |
| 1598 value->b = (jbyte)ival; | |
| 1599 break; | |
| 1600 case T_CHAR: | |
| 1601 sig_type = 'C'; | |
| 1602 value->i = 0; // clear it | |
| 1603 value->c = (jchar)ival; | |
| 1604 break; | |
| 1605 case T_SHORT: | |
| 1606 sig_type = 'S'; | |
| 1607 value->i = 0; // clear it | |
| 1608 value->s = (jshort)ival; | |
| 1609 break; | |
| 1610 case T_INT: | |
| 1611 // nothing to do | |
| 1612 break; | |
| 1613 default: | |
| 1614 // this is an integer instruction, should be one of above | |
| 1615 ShouldNotReachHere(); | |
| 1616 break; | |
| 1617 } | |
| 1618 } | |
| 1619 } | |
| 1620 | |
| 1621 // convert oop to JNI handle. | |
| 1622 if (sig_type == 'L' || sig_type == '[') { | |
| 1623 value->l = (jobject)JNIHandles::make_local(thread, (oop)value->l); | |
| 1624 } | |
| 1625 | |
| 1626 post_field_modification(thread, method, location, field_klass, object, field, sig_type, value); | |
| 1627 | |
| 1628 // Destroy the JNI handle allocated above. | |
| 1629 if (sig_type == 'L') { | |
| 1630 JNIHandles::destroy_local(value->l); | |
| 1631 } | |
| 1632 } | |
| 1633 | |
| 1634 void JvmtiExport::post_field_modification(JavaThread *thread, methodOop method, | |
| 1635 address location, KlassHandle field_klass, Handle object, jfieldID field, | |
| 1636 char sig_type, jvalue *value_ptr) { | |
| 1637 | |
| 1638 HandleMark hm(thread); | |
| 1639 methodHandle mh(thread, method); | |
| 1640 | |
| 1641 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1642 if (state == NULL) { | |
| 1643 return; | |
| 1644 } | |
| 1645 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1646 ("JVMTI [%s] Trg Field Modification event triggered", | |
| 1647 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1648 | |
| 1649 JvmtiEnvThreadStateIterator it(state); | |
| 1650 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1651 if (ets->is_enabled(JVMTI_EVENT_FIELD_MODIFICATION)) { | |
| 1652 EVT_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1653 ("JVMTI [%s] Evt Field Modification event sent %s.%s @ %d", | |
| 1654 JvmtiTrace::safe_get_thread_name(thread), | |
| 1655 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1656 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1657 location - mh()->code_base() )); | |
| 1658 | |
| 1659 JvmtiEnv *env = ets->get_env(); | |
| 1660 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1661 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1662 jobject field_jobject = jem.to_jobject(object()); | |
| 1663 JvmtiJavaThreadEventTransition jet(thread); | |
| 1664 jvmtiEventFieldModification callback = env->callbacks()->FieldModification; | |
| 1665 if (callback != NULL) { | |
| 1666 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1667 jem.jni_methodID(), jem.location(), | |
| 1668 field_jclass, field_jobject, field, sig_type, *value_ptr); | |
| 1669 } | |
| 1670 } | |
| 1671 } | |
| 1672 } | |
| 1673 | |
| 1674 void JvmtiExport::post_native_method_bind(methodOop method, address* function_ptr) { | |
| 1675 JavaThread* thread = JavaThread::current(); | |
| 1676 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1677 | |
| 1678 HandleMark hm(thread); | |
| 1679 methodHandle mh(thread, method); | |
| 1680 | |
| 1681 EVT_TRIG_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Trg Native Method Bind event triggered", | |
| 1682 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1683 | |
| 1684 if (JvmtiEventController::is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1685 JvmtiEnvIterator it; | |
| 1686 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1687 if (env->is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1688 EVT_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Evt Native Method Bind event sent", | |
| 1689 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1690 | |
| 1691 JvmtiMethodEventMark jem(thread, mh); | |
| 1692 JvmtiJavaThreadEventTransition jet(thread); | |
| 1693 JNIEnv* jni_env = JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL? NULL : jem.jni_env(); | |
| 1694 jvmtiEventNativeMethodBind callback = env->callbacks()->NativeMethodBind; | |
| 1695 if (callback != NULL) { | |
| 1696 (*callback)(env->jvmti_external(), jni_env, jem.jni_thread(), | |
| 1697 jem.jni_methodID(), (void*)(*function_ptr), (void**)function_ptr); | |
| 1698 } | |
| 1699 } | |
| 1700 } | |
| 1701 } | |
| 1702 } | |
| 1703 | |
|
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1704 // Returns a record containing inlining information for the given nmethod |
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1705 jvmtiCompiledMethodLoadInlineRecord* create_inline_record(nmethod* nm) { |
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1706 jint numstackframes = 0; |
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1707 jvmtiCompiledMethodLoadInlineRecord* record = (jvmtiCompiledMethodLoadInlineRecord*)NEW_RESOURCE_OBJ(jvmtiCompiledMethodLoadInlineRecord); |
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1708 record->header.kind = JVMTI_CMLR_INLINE_INFO; |
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1709 record->header.next = NULL; |
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1710 record->header.majorinfoversion = JVMTI_CMLR_MAJOR_VERSION_1; |
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1711 record->header.minorinfoversion = JVMTI_CMLR_MINOR_VERSION_0; |
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1712 record->numpcs = 0; |
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1713 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1714 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1715 record->numpcs++; |
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1716 } |
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1717 record->pcinfo = (PCStackInfo*)(NEW_RESOURCE_ARRAY(PCStackInfo, record->numpcs)); |
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1718 int scope = 0; |
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1719 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1720 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1721 void* pc_address = (void*)p->real_pc(nm); |
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1722 assert(pc_address != NULL, "pc_address must be non-null"); |
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1723 record->pcinfo[scope].pc = pc_address; |
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1724 numstackframes=0; |
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1725 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1726 numstackframes++; |
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1727 } |
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1728 assert(numstackframes != 0, "numstackframes must be nonzero."); |
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1729 record->pcinfo[scope].methods = (jmethodID *)NEW_RESOURCE_ARRAY(jmethodID, numstackframes); |
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1730 record->pcinfo[scope].bcis = (jint *)NEW_RESOURCE_ARRAY(jint, numstackframes); |
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1731 record->pcinfo[scope].numstackframes = numstackframes; |
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1732 int stackframe = 0; |
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1733 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1734 // 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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1735 assert(!sd->method().is_null(), "sd->method() cannot be null."); |
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1736 record->pcinfo[scope].methods[stackframe] = sd->method()->jmethod_id(); |
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1737 record->pcinfo[scope].bcis[stackframe] = sd->bci(); |
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1738 stackframe++; |
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1739 } |
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1740 scope++; |
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1741 } |
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1742 return record; |
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1743 } |
| 0 | 1744 |
| 1745 void JvmtiExport::post_compiled_method_load(nmethod *nm) { | |
| 1746 JavaThread* thread = JavaThread::current(); | |
| 1747 | |
| 1748 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1749 ("JVMTI [%s] method compile load event triggered", | |
| 1750 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1751 | |
| 1752 JvmtiEnvIterator it; | |
| 1753 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1754 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1755 | |
| 1756 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1757 ("JVMTI [%s] class compile method load event sent %s.%s ", | |
| 1758 JvmtiTrace::safe_get_thread_name(thread), | |
| 1759 (nm->method() == NULL) ? "NULL" : nm->method()->klass_name()->as_C_string(), | |
| 1760 (nm->method() == NULL) ? "NULL" : nm->method()->name()->as_C_string())); | |
| 1761 ResourceMark rm(thread); | |
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1762 HandleMark hm(thread); |
|
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1763 |
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1764 // Add inlining information |
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1765 jvmtiCompiledMethodLoadInlineRecord* inlinerecord = create_inline_record(nm); |
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1766 // Pass inlining information through the void pointer |
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1767 JvmtiCompiledMethodLoadEventMark jem(thread, nm, inlinerecord); |
| 0 | 1768 JvmtiJavaThreadEventTransition jet(thread); |
| 1769 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1770 if (callback != NULL) { | |
| 1771 (*callback)(env->jvmti_external(), jem.jni_methodID(), | |
| 1772 jem.code_size(), jem.code_data(), jem.map_length(), | |
| 1773 jem.map(), jem.compile_info()); | |
| 1774 } | |
| 1775 } | |
| 1776 } | |
| 1777 } | |
| 1778 | |
| 1779 | |
| 1780 // post a COMPILED_METHOD_LOAD event for a given environment | |
| 1781 void JvmtiExport::post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length, | |
| 1782 const void *code_begin, const jint map_length, | |
| 1783 const jvmtiAddrLocationMap* map) | |
| 1784 { | |
| 1785 JavaThread* thread = JavaThread::current(); | |
| 1786 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1787 ("JVMTI [%s] method compile load event triggered (by GenerateEvents)", | |
| 1788 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1789 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1790 | |
| 1791 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1792 ("JVMTI [%s] class compile method load event sent (by GenerateEvents), jmethodID=" PTR_FORMAT, | |
| 1793 JvmtiTrace::safe_get_thread_name(thread), method)); | |
| 1794 | |
| 1795 JvmtiEventMark jem(thread); | |
| 1796 JvmtiJavaThreadEventTransition jet(thread); | |
| 1797 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1798 if (callback != NULL) { | |
| 1799 (*callback)(env->jvmti_external(), method, | |
| 1800 length, code_begin, map_length, | |
| 1801 map, NULL); | |
| 1802 } | |
| 1803 } | |
| 1804 } | |
| 1805 | |
| 1806 void JvmtiExport::post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) { | |
| 1807 JavaThread* thread = JavaThread::current(); | |
| 1808 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1809 ("JVMTI [%s] method dynamic code generated event triggered", | |
| 1810 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1811 JvmtiEnvIterator it; | |
| 1812 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1813 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1814 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1815 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1816 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1817 JvmtiEventMark jem(thread); | |
| 1818 JvmtiJavaThreadEventTransition jet(thread); | |
| 1819 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1820 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1821 if (callback != NULL) { | |
| 1822 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1823 } | |
| 1824 } | |
| 1825 } | |
| 1826 } | |
| 1827 | |
| 1828 void JvmtiExport::post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) { | |
| 1829 // In theory everyone coming thru here is in_vm but we need to be certain | |
| 1830 // because a callee will do a vm->native transition | |
| 1831 ThreadInVMfromUnknown __tiv; | |
| 1832 jvmtiPhase phase = JvmtiEnv::get_phase(); | |
| 1833 if (phase == JVMTI_PHASE_PRIMORDIAL || phase == JVMTI_PHASE_START) { | |
| 1834 post_dynamic_code_generated_internal(name, code_begin, code_end); | |
| 1835 return; | |
| 1836 } | |
| 1837 | |
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1838 // Blocks until everything now in the queue has been posted |
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1839 JvmtiDeferredEventQueue::flush_queue(Thread::current()); |
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1840 |
| 0 | 1841 post_dynamic_code_generated_internal(name, code_begin, code_end); |
| 1842 } | |
| 1843 | |
| 1844 | |
| 1845 // post a DYNAMIC_CODE_GENERATED event for a given environment | |
| 1846 // used by GenerateEvents | |
| 1847 void JvmtiExport::post_dynamic_code_generated(JvmtiEnv* env, const char *name, | |
| 1848 const void *code_begin, const void *code_end) | |
| 1849 { | |
| 1850 JavaThread* thread = JavaThread::current(); | |
| 1851 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1852 ("JVMTI [%s] dynamic code generated event triggered (by GenerateEvents)", | |
| 1853 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1854 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1855 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1856 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1857 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1858 JvmtiEventMark jem(thread); | |
| 1859 JvmtiJavaThreadEventTransition jet(thread); | |
| 1860 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1861 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1862 if (callback != NULL) { | |
| 1863 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1864 } | |
| 1865 } | |
| 1866 } | |
| 1867 | |
| 1868 // post a DynamicCodeGenerated event while holding locks in the VM. | |
| 1869 void JvmtiExport::post_dynamic_code_generated_while_holding_locks(const char* name, | |
| 1870 address code_begin, address code_end) | |
| 1871 { | |
| 1872 // register the stub with the current dynamic code event collector | |
| 1873 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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1874 // state can only be NULL if the current thread is exiting which |
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1875 // should not happen since we're trying to post an event |
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1876 guarantee(state != NULL, "attempt to register stub via an exiting thread"); |
| 0 | 1877 JvmtiDynamicCodeEventCollector* collector = state->get_dynamic_code_event_collector(); |
| 1878 guarantee(collector != NULL, "attempt to register stub without event collector"); | |
| 1879 collector->register_stub(name, code_begin, code_end); | |
| 1880 } | |
| 1881 | |
| 1882 // Collect all the vm internally allocated objects which are visible to java world | |
| 1883 void JvmtiExport::record_vm_internal_object_allocation(oop obj) { | |
| 1884 Thread* thread = ThreadLocalStorage::thread(); | |
| 1885 if (thread != NULL && thread->is_Java_thread()) { | |
| 1886 // Can not take safepoint here. | |
| 1887 No_Safepoint_Verifier no_sfpt; | |
| 1888 // Can not take safepoint here so can not use state_for to get | |
| 1889 // jvmti thread state. | |
| 1890 JvmtiThreadState *state = ((JavaThread*)thread)->jvmti_thread_state(); | |
| 1891 if (state != NULL ) { | |
| 1892 // state is non NULL when VMObjectAllocEventCollector is enabled. | |
| 1893 JvmtiVMObjectAllocEventCollector *collector; | |
| 1894 collector = state->get_vm_object_alloc_event_collector(); | |
| 1895 if (collector != NULL && collector->is_enabled()) { | |
| 1896 // Don't record classes as these will be notified via the ClassLoad | |
| 1897 // event. | |
| 1142 | 1898 if (obj->klass() != SystemDictionary::Class_klass()) { |
| 0 | 1899 collector->record_allocation(obj); |
| 1900 } | |
| 1901 } | |
| 1902 } | |
| 1903 } | |
| 1904 } | |
| 1905 | |
| 1906 void JvmtiExport::post_garbage_collection_finish() { | |
| 1907 Thread *thread = Thread::current(); // this event is posted from VM-Thread. | |
| 1908 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1909 ("JVMTI [%s] garbage collection finish event triggered", | |
| 1910 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1911 JvmtiEnvIterator it; | |
| 1912 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1913 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH)) { | |
| 1914 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1915 ("JVMTI [%s] garbage collection finish event sent ", | |
| 1916 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1917 JvmtiThreadEventTransition jet(thread); | |
| 1918 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1919 jvmtiEventGarbageCollectionFinish callback = env->callbacks()->GarbageCollectionFinish; | |
| 1920 if (callback != NULL) { | |
| 1921 (*callback)(env->jvmti_external()); | |
| 1922 } | |
| 1923 } | |
| 1924 } | |
| 1925 } | |
| 1926 | |
| 1927 void JvmtiExport::post_garbage_collection_start() { | |
| 1928 Thread* thread = Thread::current(); // this event is posted from vm-thread. | |
| 1929 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1930 ("JVMTI [%s] garbage collection start event triggered", | |
| 1931 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1932 JvmtiEnvIterator it; | |
| 1933 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1934 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_START)) { | |
| 1935 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1936 ("JVMTI [%s] garbage collection start event sent ", | |
| 1937 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1938 JvmtiThreadEventTransition jet(thread); | |
| 1939 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1940 jvmtiEventGarbageCollectionStart callback = env->callbacks()->GarbageCollectionStart; | |
| 1941 if (callback != NULL) { | |
| 1942 (*callback)(env->jvmti_external()); | |
| 1943 } | |
| 1944 } | |
| 1945 } | |
| 1946 } | |
| 1947 | |
| 1948 void JvmtiExport::post_data_dump() { | |
| 1949 Thread *thread = Thread::current(); | |
| 1950 EVT_TRIG_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1951 ("JVMTI [%s] data dump request event triggered", | |
| 1952 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1953 JvmtiEnvIterator it; | |
| 1954 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1955 if (env->is_enabled(JVMTI_EVENT_DATA_DUMP_REQUEST)) { | |
| 1956 EVT_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1957 ("JVMTI [%s] data dump request event sent ", | |
| 1958 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1959 JvmtiThreadEventTransition jet(thread); | |
| 1960 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1961 jvmtiEventDataDumpRequest callback = env->callbacks()->DataDumpRequest; | |
| 1962 if (callback != NULL) { | |
| 1963 (*callback)(env->jvmti_external()); | |
| 1964 } | |
| 1965 } | |
| 1966 } | |
| 1967 } | |
| 1968 | |
| 1969 void JvmtiExport::post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 1970 oop object = (oop)obj_mntr->object(); | |
| 1971 if (!ServiceUtil::visible_oop(object)) { | |
| 1972 // Ignore monitor contended enter for vm internal object. | |
| 1973 return; | |
| 1974 } | |
| 1975 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1976 if (state == NULL) { | |
| 1977 return; | |
| 1978 } | |
| 1979 | |
| 1980 HandleMark hm(thread); | |
| 1981 Handle h(thread, object); | |
| 1982 | |
| 1983 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 1984 ("JVMTI [%s] montior contended enter event triggered", | |
| 1985 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1986 | |
| 1987 JvmtiEnvThreadStateIterator it(state); | |
| 1988 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1989 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTER)) { | |
| 1990 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 1991 ("JVMTI [%s] monitor contended enter event sent", | |
| 1992 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1993 JvmtiMonitorEventMark jem(thread, h()); | |
| 1994 JvmtiEnv *env = ets->get_env(); | |
| 1995 JvmtiThreadEventTransition jet(thread); | |
| 1996 jvmtiEventMonitorContendedEnter callback = env->callbacks()->MonitorContendedEnter; | |
| 1997 if (callback != NULL) { | |
| 1998 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 1999 } | |
| 2000 } | |
| 2001 } | |
| 2002 } | |
| 2003 | |
| 2004 void JvmtiExport::post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 2005 oop object = (oop)obj_mntr->object(); | |
| 2006 if (!ServiceUtil::visible_oop(object)) { | |
| 2007 // Ignore monitor contended entered for vm internal object. | |
| 2008 return; | |
| 2009 } | |
| 2010 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2011 if (state == NULL) { | |
| 2012 return; | |
| 2013 } | |
| 2014 | |
| 2015 HandleMark hm(thread); | |
| 2016 Handle h(thread, object); | |
| 2017 | |
| 2018 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2019 ("JVMTI [%s] montior contended entered event triggered", | |
| 2020 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2021 | |
| 2022 JvmtiEnvThreadStateIterator it(state); | |
| 2023 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2024 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED)) { | |
| 2025 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2026 ("JVMTI [%s] monitor contended enter event sent", | |
| 2027 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2028 JvmtiMonitorEventMark jem(thread, h()); | |
| 2029 JvmtiEnv *env = ets->get_env(); | |
| 2030 JvmtiThreadEventTransition jet(thread); | |
| 2031 jvmtiEventMonitorContendedEntered callback = env->callbacks()->MonitorContendedEntered; | |
| 2032 if (callback != NULL) { | |
| 2033 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2034 } | |
| 2035 } | |
| 2036 } | |
| 2037 } | |
| 2038 | |
| 2039 void JvmtiExport::post_monitor_wait(JavaThread *thread, oop object, | |
| 2040 jlong timeout) { | |
| 2041 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2042 if (state == NULL) { | |
| 2043 return; | |
| 2044 } | |
| 2045 | |
| 2046 HandleMark hm(thread); | |
| 2047 Handle h(thread, object); | |
| 2048 | |
| 2049 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2050 ("JVMTI [%s] montior wait event triggered", | |
| 2051 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2052 | |
| 2053 JvmtiEnvThreadStateIterator it(state); | |
| 2054 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2055 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAIT)) { | |
| 2056 EVT_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2057 ("JVMTI [%s] monitor wait event sent ", | |
| 2058 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2059 JvmtiMonitorEventMark jem(thread, h()); | |
| 2060 JvmtiEnv *env = ets->get_env(); | |
| 2061 JvmtiThreadEventTransition jet(thread); | |
| 2062 jvmtiEventMonitorWait callback = env->callbacks()->MonitorWait; | |
| 2063 if (callback != NULL) { | |
| 2064 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2065 jem.jni_object(), timeout); | |
| 2066 } | |
| 2067 } | |
| 2068 } | |
| 2069 } | |
| 2070 | |
| 2071 void JvmtiExport::post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) { | |
| 2072 oop object = (oop)obj_mntr->object(); | |
| 2073 if (!ServiceUtil::visible_oop(object)) { | |
| 2074 // Ignore monitor waited for vm internal object. | |
| 2075 return; | |
| 2076 } | |
| 2077 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2078 if (state == NULL) { | |
| 2079 return; | |
| 2080 } | |
| 2081 | |
| 2082 HandleMark hm(thread); | |
| 2083 Handle h(thread, object); | |
| 2084 | |
| 2085 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2086 ("JVMTI [%s] montior waited event triggered", | |
| 2087 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2088 | |
| 2089 JvmtiEnvThreadStateIterator it(state); | |
| 2090 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2091 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAITED)) { | |
| 2092 EVT_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2093 ("JVMTI [%s] monitor waited event sent ", | |
| 2094 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2095 JvmtiMonitorEventMark jem(thread, h()); | |
| 2096 JvmtiEnv *env = ets->get_env(); | |
| 2097 JvmtiThreadEventTransition jet(thread); | |
| 2098 jvmtiEventMonitorWaited callback = env->callbacks()->MonitorWaited; | |
| 2099 if (callback != NULL) { | |
| 2100 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2101 jem.jni_object(), timed_out); | |
| 2102 } | |
| 2103 } | |
| 2104 } | |
| 2105 } | |
| 2106 | |
| 2107 | |
| 2108 void JvmtiExport::post_vm_object_alloc(JavaThread *thread, oop object) { | |
| 2109 EVT_TRIG_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Trg vm object alloc triggered", | |
| 2110 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2111 if (object == NULL) { | |
| 2112 return; | |
| 2113 } | |
| 2114 HandleMark hm(thread); | |
| 2115 Handle h(thread, object); | |
| 2116 JvmtiEnvIterator it; | |
| 2117 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 2118 if (env->is_enabled(JVMTI_EVENT_VM_OBJECT_ALLOC)) { | |
| 2119 EVT_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Evt vmobject alloc sent %s", | |
| 2120 JvmtiTrace::safe_get_thread_name(thread), | |
| 2121 object==NULL? "NULL" : Klass::cast(java_lang_Class::as_klassOop(object))->external_name())); | |
| 2122 | |
| 2123 JvmtiVMObjectAllocEventMark jem(thread, h()); | |
| 2124 JvmtiJavaThreadEventTransition jet(thread); | |
| 2125 jvmtiEventVMObjectAlloc callback = env->callbacks()->VMObjectAlloc; | |
| 2126 if (callback != NULL) { | |
| 2127 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2128 jem.jni_jobject(), jem.jni_class(), jem.size()); | |
| 2129 } | |
| 2130 } | |
| 2131 } | |
| 2132 } | |
| 2133 | |
| 2134 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2135 | |
| 2136 void JvmtiExport::cleanup_thread(JavaThread* thread) { | |
| 2137 assert(JavaThread::current() == thread, "thread is not current"); | |
|
2126
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|
2138 MutexLocker mu(JvmtiThreadState_lock); |
| 0 | 2139 |
|
2126
db2b0f8c1cef
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2125
diff
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|
2140 if (thread->jvmti_thread_state() != NULL) { |
|
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2125
diff
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|
2141 // This has to happen after the thread state is removed, which is |
|
db2b0f8c1cef
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diff
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|
2142 // why it is not in post_thread_end_event like its complement |
|
db2b0f8c1cef
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diff
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|
2143 // Maybe both these functions should be rolled into the posts? |
|
db2b0f8c1cef
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2125
diff
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|
2144 JvmtiEventController::thread_ended(thread); |
|
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6814943: getcpool001 catches more than one JvmtiThreadState problem
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|
2145 } |
| 0 | 2146 } |
| 2147 | |
| 2148 void JvmtiExport::oops_do(OopClosure* f) { | |
| 2149 JvmtiCurrentBreakpoints::oops_do(f); | |
| 2150 JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(f); | |
| 2151 } | |
| 2152 | |
|
2147
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|
2153 void JvmtiExport::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f) { |
|
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|
2154 JvmtiTagMap::weak_oops_do(is_alive, f); |
|
9afee0b9fc1d
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|
2155 } |
|
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|
2156 |
|
9afee0b9fc1d
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|
2157 void JvmtiExport::gc_epilogue() { |
|
9afee0b9fc1d
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|
2158 JvmtiCurrentBreakpoints::gc_epilogue(); |
|
9afee0b9fc1d
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|
2159 } |
|
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|
2160 |
| 0 | 2161 // Onload raw monitor transition. |
| 2162 void JvmtiExport::transition_pending_onload_raw_monitors() { | |
| 2163 JvmtiPendingMonitors::transition_raw_monitors(); | |
| 2164 } | |
| 2165 | |
| 2166 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2167 | |
| 2168 // type for the Agent_OnAttach entry point | |
| 2169 extern "C" { | |
| 2170 typedef jint (JNICALL *OnAttachEntry_t)(JavaVM*, char *, void *); | |
| 2171 } | |
| 2172 | |
| 2173 #ifndef SERVICES_KERNEL | |
| 2174 jint JvmtiExport::load_agent_library(AttachOperation* op, outputStream* st) { | |
| 2175 char ebuf[1024]; | |
| 2176 char buffer[JVM_MAXPATHLEN]; | |
| 2177 void* library; | |
| 2178 jint result = JNI_ERR; | |
| 2179 | |
| 2180 // get agent name and options | |
| 2181 const char* agent = op->arg(0); | |
| 2182 const char* absParam = op->arg(1); | |
| 2183 const char* options = op->arg(2); | |
| 2184 | |
| 2185 // The abs paramter should be "true" or "false" | |
| 2186 bool is_absolute_path = (absParam != NULL) && (strcmp(absParam,"true")==0); | |
| 2187 | |
| 2188 | |
| 2189 // If the path is absolute we attempt to load the library. Otherwise we try to | |
| 2190 // load it from the standard dll directory. | |
| 2191 | |
| 2192 if (is_absolute_path) { | |
|
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ikrylov
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diff
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|
2193 library = os::dll_load(agent, ebuf, sizeof ebuf); |
| 0 | 2194 } else { |
| 2195 // Try to load the agent from the standard dll directory | |
|
1980
828eafbd85cc
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diff
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|
2196 os::dll_build_name(buffer, sizeof(buffer), Arguments::get_dll_dir(), agent); |
|
828eafbd85cc
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diff
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|
2197 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
| 0 | 2198 if (library == NULL) { |
| 2199 // not found - try local path | |
| 2200 char ns[1] = {0}; | |
|
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diff
changeset
|
2201 os::dll_build_name(buffer, sizeof(buffer), ns, agent); |
|
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diff
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|
2202 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
| 0 | 2203 } |
| 2204 } | |
| 2205 | |
| 2206 // If the library was loaded then we attempt to invoke the Agent_OnAttach | |
| 2207 // function | |
| 2208 if (library != NULL) { | |
| 2209 | |
| 2210 // Lookup the Agent_OnAttach function | |
| 2211 OnAttachEntry_t on_attach_entry = NULL; | |
| 2212 const char *on_attach_symbols[] = AGENT_ONATTACH_SYMBOLS; | |
| 2213 for (uint symbol_index = 0; symbol_index < ARRAY_SIZE(on_attach_symbols); symbol_index++) { | |
| 2214 on_attach_entry = | |
|
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parents:
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diff
changeset
|
2215 CAST_TO_FN_PTR(OnAttachEntry_t, os::dll_lookup(library, on_attach_symbols[symbol_index])); |
| 0 | 2216 if (on_attach_entry != NULL) break; |
| 2217 } | |
| 2218 | |
| 2219 if (on_attach_entry == NULL) { | |
| 2220 // Agent_OnAttach missing - unload library | |
|
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diff
changeset
|
2221 os::dll_unload(library); |
| 0 | 2222 } else { |
| 2223 // Invoke the Agent_OnAttach function | |
| 2224 JavaThread* THREAD = JavaThread::current(); | |
| 2225 { | |
| 2226 extern struct JavaVM_ main_vm; | |
| 2227 JvmtiThreadEventMark jem(THREAD); | |
| 2228 JvmtiJavaThreadEventTransition jet(THREAD); | |
| 2229 | |
| 2230 result = (*on_attach_entry)(&main_vm, (char*)options, NULL); | |
| 2231 } | |
| 2232 | |
| 2233 // Agent_OnAttach may have used JNI | |
| 2234 if (HAS_PENDING_EXCEPTION) { | |
| 2235 CLEAR_PENDING_EXCEPTION; | |
| 2236 } | |
| 2237 | |
| 2238 // If OnAttach returns JNI_OK then we add it to the list of | |
| 2239 // agent libraries so that we can call Agent_OnUnload later. | |
| 2240 if (result == JNI_OK) { | |
| 2241 Arguments::add_loaded_agent(agent, (char*)options, is_absolute_path, library); | |
| 2242 } | |
| 2243 | |
| 2244 // Agent_OnAttach executed so completion status is JNI_OK | |
| 2245 st->print_cr("%d", result); | |
| 2246 result = JNI_OK; | |
| 2247 } | |
| 2248 } | |
| 2249 return result; | |
| 2250 } | |
| 2251 #endif // SERVICES_KERNEL | |
| 2252 | |
| 2253 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2254 | |
| 2255 // Setup current current thread for event collection. | |
| 2256 void JvmtiEventCollector::setup_jvmti_thread_state() { | |
| 2257 // set this event collector to be the current one. | |
| 2258 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
609
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|
2259 // state can only be NULL if the current thread is exiting which |
|
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|
2260 // should not happen since we're trying to configure for event collection |
|
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diff
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|
2261 guarantee(state != NULL, "exiting thread called setup_jvmti_thread_state"); |
| 0 | 2262 if (is_vm_object_alloc_event()) { |
| 2263 _prev = state->get_vm_object_alloc_event_collector(); | |
| 2264 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)this); | |
| 2265 } else if (is_dynamic_code_event()) { | |
| 2266 _prev = state->get_dynamic_code_event_collector(); | |
| 2267 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)this); | |
| 2268 } | |
| 2269 } | |
| 2270 | |
| 2271 // Unset current event collection in this thread and reset it with previous | |
| 2272 // collector. | |
| 2273 void JvmtiEventCollector::unset_jvmti_thread_state() { | |
| 2274 JvmtiThreadState* state = JavaThread::current()->jvmti_thread_state(); | |
| 2275 if (state != NULL) { | |
| 2276 // restore the previous event collector (if any) | |
| 2277 if (is_vm_object_alloc_event()) { | |
| 2278 if (state->get_vm_object_alloc_event_collector() == this) { | |
| 2279 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)_prev); | |
| 2280 } else { | |
| 2281 // this thread's jvmti state was created during the scope of | |
| 2282 // the event collector. | |
| 2283 } | |
| 2284 } else { | |
| 2285 if (is_dynamic_code_event()) { | |
| 2286 if (state->get_dynamic_code_event_collector() == this) { | |
| 2287 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)_prev); | |
| 2288 } else { | |
| 2289 // this thread's jvmti state was created during the scope of | |
| 2290 // the event collector. | |
| 2291 } | |
| 2292 } | |
| 2293 } | |
| 2294 } | |
| 2295 } | |
| 2296 | |
| 2297 // create the dynamic code event collector | |
| 2298 JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(NULL) { | |
| 2299 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 2300 setup_jvmti_thread_state(); | |
| 2301 } | |
| 2302 } | |
| 2303 | |
| 2304 // iterate over any code blob descriptors collected and post a | |
| 2305 // DYNAMIC_CODE_GENERATED event to the profiler. | |
| 2306 JvmtiDynamicCodeEventCollector::~JvmtiDynamicCodeEventCollector() { | |
| 2307 assert(!JavaThread::current()->owns_locks(), "all locks must be released to post deferred events"); | |
| 2308 // iterate over any code blob descriptors that we collected | |
| 2309 if (_code_blobs != NULL) { | |
| 2310 for (int i=0; i<_code_blobs->length(); i++) { | |
| 2311 JvmtiCodeBlobDesc* blob = _code_blobs->at(i); | |
| 2312 JvmtiExport::post_dynamic_code_generated(blob->name(), blob->code_begin(), blob->code_end()); | |
| 2313 FreeHeap(blob); | |
| 2314 } | |
| 2315 delete _code_blobs; | |
| 2316 } | |
| 2317 unset_jvmti_thread_state(); | |
| 2318 } | |
| 2319 | |
| 2320 // register a stub | |
| 2321 void JvmtiDynamicCodeEventCollector::register_stub(const char* name, address start, address end) { | |
| 2322 if (_code_blobs == NULL) { | |
| 2323 _code_blobs = new (ResourceObj::C_HEAP) GrowableArray<JvmtiCodeBlobDesc*>(1,true); | |
| 2324 } | |
| 2325 _code_blobs->append(new JvmtiCodeBlobDesc(name, start, end)); | |
| 2326 } | |
| 2327 | |
| 2328 // Setup current thread to record vm allocated objects. | |
| 2329 JvmtiVMObjectAllocEventCollector::JvmtiVMObjectAllocEventCollector() : _allocated(NULL) { | |
| 2330 if (JvmtiExport::should_post_vm_object_alloc()) { | |
| 2331 _enable = true; | |
| 2332 setup_jvmti_thread_state(); | |
| 2333 } else { | |
| 2334 _enable = false; | |
| 2335 } | |
| 2336 } | |
| 2337 | |
| 2338 // Post vm_object_alloc event for vm allocated objects visible to java | |
| 2339 // world. | |
| 2340 JvmtiVMObjectAllocEventCollector::~JvmtiVMObjectAllocEventCollector() { | |
| 2341 if (_allocated != NULL) { | |
| 2342 set_enabled(false); | |
| 2343 for (int i = 0; i < _allocated->length(); i++) { | |
| 2344 oop obj = _allocated->at(i); | |
| 2345 if (ServiceUtil::visible_oop(obj)) { | |
| 2346 JvmtiExport::post_vm_object_alloc(JavaThread::current(), obj); | |
| 2347 } | |
| 2348 } | |
| 2349 delete _allocated; | |
| 2350 } | |
| 2351 unset_jvmti_thread_state(); | |
| 2352 } | |
| 2353 | |
| 2354 void JvmtiVMObjectAllocEventCollector::record_allocation(oop obj) { | |
| 2355 assert(is_enabled(), "VM object alloc event collector is not enabled"); | |
| 2356 if (_allocated == NULL) { | |
| 2357 _allocated = new (ResourceObj::C_HEAP) GrowableArray<oop>(1, true); | |
| 2358 } | |
| 2359 _allocated->push(obj); | |
| 2360 } | |
| 2361 | |
| 2362 // GC support. | |
| 2363 void JvmtiVMObjectAllocEventCollector::oops_do(OopClosure* f) { | |
| 2364 if (_allocated != NULL) { | |
| 2365 for(int i=_allocated->length() - 1; i >= 0; i--) { | |
| 2366 if (_allocated->at(i) != NULL) { | |
| 2367 f->do_oop(_allocated->adr_at(i)); | |
| 2368 } | |
| 2369 } | |
| 2370 } | |
| 2371 } | |
| 2372 | |
| 2373 void JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(OopClosure* f) { | |
| 2374 // no-op if jvmti not enabled | |
| 2375 if (!JvmtiEnv::environments_might_exist()) { | |
| 2376 return; | |
| 2377 } | |
| 2378 | |
| 2379 // Runs at safepoint. So no need to acquire Threads_lock. | |
| 2380 for (JavaThread *jthr = Threads::first(); jthr != NULL; jthr = jthr->next()) { | |
| 2381 JvmtiThreadState *state = jthr->jvmti_thread_state(); | |
| 2382 if (state != NULL) { | |
| 2383 JvmtiVMObjectAllocEventCollector *collector; | |
| 2384 collector = state->get_vm_object_alloc_event_collector(); | |
| 2385 while (collector != NULL) { | |
| 2386 collector->oops_do(f); | |
| 2387 collector = (JvmtiVMObjectAllocEventCollector *)collector->get_prev(); | |
| 2388 } | |
| 2389 } | |
| 2390 } | |
| 2391 } | |
| 2392 | |
| 2393 | |
| 2394 // Disable collection of VMObjectAlloc events | |
| 2395 NoJvmtiVMObjectAllocMark::NoJvmtiVMObjectAllocMark() : _collector(NULL) { | |
| 2396 // a no-op if VMObjectAlloc event is not enabled | |
| 2397 if (!JvmtiExport::should_post_vm_object_alloc()) { | |
| 2398 return; | |
| 2399 } | |
| 2400 Thread* thread = ThreadLocalStorage::thread(); | |
| 2401 if (thread != NULL && thread->is_Java_thread()) { | |
| 2402 JavaThread* current_thread = (JavaThread*)thread; | |
| 2403 JvmtiThreadState *state = current_thread->jvmti_thread_state(); | |
| 2404 if (state != NULL) { | |
| 2405 JvmtiVMObjectAllocEventCollector *collector; | |
| 2406 collector = state->get_vm_object_alloc_event_collector(); | |
| 2407 if (collector != NULL && collector->is_enabled()) { | |
| 2408 _collector = collector; | |
| 2409 _collector->set_enabled(false); | |
| 2410 } | |
| 2411 } | |
| 2412 } | |
| 2413 } | |
| 2414 | |
| 2415 // Re-Enable collection of VMObjectAlloc events (if previously enabled) | |
| 2416 NoJvmtiVMObjectAllocMark::~NoJvmtiVMObjectAllocMark() { | |
| 2417 if (was_enabled()) { | |
| 2418 _collector->set_enabled(true); | |
| 2419 } | |
| 2420 }; | |
| 2421 | |
|
2125
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2422 JvmtiGCMarker::JvmtiGCMarker() { |
| 0 | 2423 // if there aren't any JVMTI environments then nothing to do |
| 2424 if (!JvmtiEnv::environments_might_exist()) { | |
| 2425 return; | |
| 2426 } | |
| 2427 | |
| 2428 if (JvmtiExport::should_post_garbage_collection_start()) { | |
| 2429 JvmtiExport::post_garbage_collection_start(); | |
| 2430 } | |
| 2431 | |
|
2125
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2432 if (SafepointSynchronize::is_at_safepoint()) { |
|
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2433 // 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
|
2434 JvmtiEnvBase::check_for_periodic_clean_up(); |
| 0 | 2435 } |
| 2436 } | |
| 2437 | |
| 2438 JvmtiGCMarker::~JvmtiGCMarker() { | |
| 2439 // if there aren't any JVMTI environments then nothing to do | |
| 2440 if (!JvmtiEnv::environments_might_exist()) { | |
| 2441 return; | |
| 2442 } | |
| 2443 | |
| 2444 // JVMTI notify gc finish | |
| 2445 if (JvmtiExport::should_post_garbage_collection_finish()) { | |
| 2446 JvmtiExport::post_garbage_collection_finish(); | |
| 2447 } | |
| 2448 } | |
| 2449 #endif // JVMTI_KERNEL |