Mercurial > hg > graal-compiler
annotate src/share/vm/prims/jvmtiExport.cpp @ 20197:ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
Reviewed-by: dholmes, kvn, stefank, twisti
| author | goetz |
|---|---|
| date | Tue, 29 Apr 2014 15:17:27 +0200 |
| parents | 78bbf4d43a14 |
| children | 7848fc12602b |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2014, 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" | |
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44 #include "prims/jvmtiRedefineClasses.hpp" |
| 1972 | 45 #include "runtime/arguments.hpp" |
| 46 #include "runtime/handles.hpp" | |
| 47 #include "runtime/interfaceSupport.hpp" | |
| 48 #include "runtime/objectMonitor.hpp" | |
| 49 #include "runtime/objectMonitor.inline.hpp" | |
|
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50 #include "runtime/thread.inline.hpp" |
| 1972 | 51 #include "runtime/vframe.hpp" |
| 52 #include "services/attachListener.hpp" | |
| 53 #include "services/serviceUtil.hpp" | |
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54 #include "utilities/macros.hpp" |
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55 #if INCLUDE_ALL_GCS |
| 1972 | 56 #include "gc_implementation/parallelScavenge/psMarkSweep.hpp" |
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57 #endif // INCLUDE_ALL_GCS |
| 0 | 58 |
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59 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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60 |
| 0 | 61 #ifdef JVMTI_TRACE |
| 62 #define EVT_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_SENT) != 0) { SafeResourceMark rm; tty->print_cr out; } | |
| 63 #define EVT_TRIG_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_TRIGGER) != 0) { SafeResourceMark rm; tty->print_cr out; } | |
| 64 #else | |
| 65 #define EVT_TRIG_TRACE(evt,out) | |
| 66 #define EVT_TRACE(evt,out) | |
| 67 #endif | |
| 68 | |
| 69 /////////////////////////////////////////////////////////////// | |
| 70 // | |
| 71 // JvmtiEventTransition | |
| 72 // | |
| 73 // TO DO -- | |
| 74 // more handle purging | |
| 75 | |
| 76 // Use this for JavaThreads and state is _thread_in_vm. | |
| 77 class JvmtiJavaThreadEventTransition : StackObj { | |
| 78 private: | |
| 79 ResourceMark _rm; | |
| 80 ThreadToNativeFromVM _transition; | |
| 81 HandleMark _hm; | |
| 82 | |
| 83 public: | |
| 84 JvmtiJavaThreadEventTransition(JavaThread *thread) : | |
| 85 _rm(), | |
| 86 _transition(thread), | |
| 87 _hm(thread) {}; | |
| 88 }; | |
| 89 | |
| 90 // For JavaThreads which are not in _thread_in_vm state | |
| 91 // and other system threads use this. | |
| 92 class JvmtiThreadEventTransition : StackObj { | |
| 93 private: | |
| 94 ResourceMark _rm; | |
| 95 HandleMark _hm; | |
| 96 JavaThreadState _saved_state; | |
| 97 JavaThread *_jthread; | |
| 98 | |
| 99 public: | |
| 100 JvmtiThreadEventTransition(Thread *thread) : _rm(), _hm() { | |
| 101 if (thread->is_Java_thread()) { | |
| 102 _jthread = (JavaThread *)thread; | |
| 103 _saved_state = _jthread->thread_state(); | |
| 104 if (_saved_state == _thread_in_Java) { | |
| 105 ThreadStateTransition::transition_from_java(_jthread, _thread_in_native); | |
| 106 } else { | |
| 107 ThreadStateTransition::transition(_jthread, _saved_state, _thread_in_native); | |
| 108 } | |
| 109 } else { | |
| 110 _jthread = NULL; | |
| 111 } | |
| 112 } | |
| 113 | |
| 114 ~JvmtiThreadEventTransition() { | |
| 115 if (_jthread != NULL) | |
| 116 ThreadStateTransition::transition_from_native(_jthread, _saved_state); | |
| 117 } | |
| 118 }; | |
| 119 | |
| 120 | |
| 121 /////////////////////////////////////////////////////////////// | |
| 122 // | |
| 123 // JvmtiEventMark | |
| 124 // | |
| 125 | |
| 126 class JvmtiEventMark : public StackObj { | |
| 127 private: | |
| 128 JavaThread *_thread; | |
| 129 JNIEnv* _jni_env; | |
| 130 bool _exception_detected; | |
| 131 bool _exception_caught; | |
| 132 #if 0 | |
| 133 JNIHandleBlock* _hblock; | |
| 134 #endif | |
| 135 | |
| 136 public: | |
| 137 JvmtiEventMark(JavaThread *thread) : _thread(thread), | |
| 138 _jni_env(thread->jni_environment()) { | |
| 139 #if 0 | |
| 140 _hblock = thread->active_handles(); | |
| 141 _hblock->clear_thoroughly(); // so we can be safe | |
| 142 #else | |
| 143 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 144 // for now, steal JNI push local frame code | |
| 145 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 146 // we are before an event. | |
| 147 // Save current jvmti thread exception state. | |
| 148 if (state != NULL) { | |
| 149 _exception_detected = state->is_exception_detected(); | |
| 150 _exception_caught = state->is_exception_caught(); | |
| 151 } else { | |
| 152 _exception_detected = false; | |
| 153 _exception_caught = false; | |
| 154 } | |
| 155 | |
| 156 JNIHandleBlock* old_handles = thread->active_handles(); | |
| 157 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
| 158 assert(new_handles != NULL, "should not be NULL"); | |
| 159 new_handles->set_pop_frame_link(old_handles); | |
| 160 thread->set_active_handles(new_handles); | |
| 161 #endif | |
| 162 assert(thread == JavaThread::current(), "thread must be current!"); | |
| 163 thread->frame_anchor()->make_walkable(thread); | |
| 164 }; | |
| 165 | |
| 166 ~JvmtiEventMark() { | |
| 167 #if 0 | |
| 168 _hblock->clear(); // for consistency with future correct behavior | |
| 169 #else | |
| 170 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 171 // for now, steal JNI pop local frame code | |
| 172 JNIHandleBlock* old_handles = _thread->active_handles(); | |
| 173 JNIHandleBlock* new_handles = old_handles->pop_frame_link(); | |
| 174 assert(new_handles != NULL, "should not be NULL"); | |
| 175 _thread->set_active_handles(new_handles); | |
| 176 // Note that we set the pop_frame_link to NULL explicitly, otherwise | |
| 177 // the release_block call will release the blocks. | |
| 178 old_handles->set_pop_frame_link(NULL); | |
| 179 JNIHandleBlock::release_block(old_handles, _thread); // may block | |
| 180 #endif | |
| 181 | |
| 182 JvmtiThreadState* state = _thread->jvmti_thread_state(); | |
| 183 // we are continuing after an event. | |
| 184 if (state != NULL) { | |
| 185 // Restore the jvmti thread exception state. | |
| 186 if (_exception_detected) { | |
| 187 state->set_exception_detected(); | |
| 188 } | |
| 189 if (_exception_caught) { | |
| 190 state->set_exception_caught(); | |
| 191 } | |
| 192 } | |
| 193 } | |
| 194 | |
| 195 #if 0 | |
| 196 jobject to_jobject(oop obj) { return obj == NULL? NULL : _hblock->allocate_handle_fast(obj); } | |
| 197 #else | |
| 198 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 199 // for now, use regular make_local | |
| 200 jobject to_jobject(oop obj) { return JNIHandles::make_local(_thread,obj); } | |
| 201 #endif | |
| 202 | |
| 6983 | 203 jclass to_jclass(Klass* klass) { return (klass == NULL ? NULL : (jclass)to_jobject(klass->java_mirror())); } |
| 0 | 204 |
| 205 jmethodID to_jmethodID(methodHandle method) { return method->jmethod_id(); } | |
| 206 | |
| 207 JNIEnv* jni_env() { return _jni_env; } | |
| 208 }; | |
| 209 | |
| 210 class JvmtiThreadEventMark : public JvmtiEventMark { | |
| 211 private: | |
| 212 jthread _jt; | |
| 213 | |
| 214 public: | |
| 215 JvmtiThreadEventMark(JavaThread *thread) : | |
| 216 JvmtiEventMark(thread) { | |
| 217 _jt = (jthread)(to_jobject(thread->threadObj())); | |
| 218 }; | |
| 219 jthread jni_thread() { return _jt; } | |
| 220 }; | |
| 221 | |
| 222 class JvmtiClassEventMark : public JvmtiThreadEventMark { | |
| 223 private: | |
| 224 jclass _jc; | |
| 225 | |
| 226 public: | |
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227 JvmtiClassEventMark(JavaThread *thread, Klass* klass) : |
| 0 | 228 JvmtiThreadEventMark(thread) { |
| 229 _jc = to_jclass(klass); | |
| 230 }; | |
| 231 jclass jni_class() { return _jc; } | |
| 232 }; | |
| 233 | |
| 234 class JvmtiMethodEventMark : public JvmtiThreadEventMark { | |
| 235 private: | |
| 236 jmethodID _mid; | |
| 237 | |
| 238 public: | |
| 239 JvmtiMethodEventMark(JavaThread *thread, methodHandle method) : | |
| 240 JvmtiThreadEventMark(thread), | |
| 241 _mid(to_jmethodID(method)) {}; | |
| 242 jmethodID jni_methodID() { return _mid; } | |
| 243 }; | |
| 244 | |
| 245 class JvmtiLocationEventMark : public JvmtiMethodEventMark { | |
| 246 private: | |
| 247 jlocation _loc; | |
| 248 | |
| 249 public: | |
| 250 JvmtiLocationEventMark(JavaThread *thread, methodHandle method, address location) : | |
| 251 JvmtiMethodEventMark(thread, method), | |
| 252 _loc(location - method->code_base()) {}; | |
| 253 jlocation location() { return _loc; } | |
| 254 }; | |
| 255 | |
| 256 class JvmtiExceptionEventMark : public JvmtiLocationEventMark { | |
| 257 private: | |
| 258 jobject _exc; | |
| 259 | |
| 260 public: | |
| 261 JvmtiExceptionEventMark(JavaThread *thread, methodHandle method, address location, Handle exception) : | |
| 262 JvmtiLocationEventMark(thread, method, location), | |
| 263 _exc(to_jobject(exception())) {}; | |
| 264 jobject exception() { return _exc; } | |
| 265 }; | |
| 266 | |
| 267 class JvmtiClassFileLoadEventMark : public JvmtiThreadEventMark { | |
| 268 private: | |
| 269 const char *_class_name; | |
| 270 jobject _jloader; | |
| 271 jobject _protection_domain; | |
| 272 jclass _class_being_redefined; | |
| 273 | |
| 274 public: | |
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275 JvmtiClassFileLoadEventMark(JavaThread *thread, Symbol* name, |
| 0 | 276 Handle class_loader, Handle prot_domain, KlassHandle *class_being_redefined) : JvmtiThreadEventMark(thread) { |
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277 _class_name = name != NULL? name->as_utf8() : NULL; |
| 0 | 278 _jloader = (jobject)to_jobject(class_loader()); |
| 279 _protection_domain = (jobject)to_jobject(prot_domain()); | |
| 280 if (class_being_redefined == NULL) { | |
| 281 _class_being_redefined = NULL; | |
| 282 } else { | |
| 283 _class_being_redefined = (jclass)to_jclass((*class_being_redefined)()); | |
| 284 } | |
| 285 }; | |
| 286 const char *class_name() { | |
| 287 return _class_name; | |
| 288 } | |
| 289 jobject jloader() { | |
| 290 return _jloader; | |
| 291 } | |
| 292 jobject protection_domain() { | |
| 293 return _protection_domain; | |
| 294 } | |
| 295 jclass class_being_redefined() { | |
| 296 return _class_being_redefined; | |
| 297 } | |
| 298 }; | |
| 299 | |
| 300 ////////////////////////////////////////////////////////////////////////////// | |
| 301 | |
| 302 int JvmtiExport::_field_access_count = 0; | |
| 303 int JvmtiExport::_field_modification_count = 0; | |
| 304 | |
| 305 bool JvmtiExport::_can_access_local_variables = false; | |
| 306 bool JvmtiExport::_can_hotswap_or_post_breakpoint = false; | |
| 307 bool JvmtiExport::_can_modify_any_class = false; | |
| 308 bool JvmtiExport::_can_walk_any_space = false; | |
| 309 | |
| 310 bool JvmtiExport::_has_redefined_a_class = false; | |
| 311 bool JvmtiExport::_all_dependencies_are_recorded = false; | |
| 312 | |
| 313 // | |
| 314 // field access management | |
| 315 // | |
| 316 | |
| 317 // interpreter generator needs the address of the counter | |
| 318 address JvmtiExport::get_field_access_count_addr() { | |
| 319 // We don't grab a lock because we don't want to | |
| 320 // serialize field access between all threads. This means that a | |
| 321 // thread on another processor can see the wrong count value and | |
| 322 // may either miss making a needed call into post_field_access() | |
| 323 // or will make an unneeded call into post_field_access(). We pay | |
| 324 // this price to avoid slowing down the VM when we aren't watching | |
| 325 // field accesses. | |
| 326 // Other access/mutation safe by virtue of being in VM state. | |
| 327 return (address)(&_field_access_count); | |
| 328 } | |
| 329 | |
| 330 // | |
| 331 // field modification management | |
| 332 // | |
| 333 | |
| 334 // interpreter generator needs the address of the counter | |
| 335 address JvmtiExport::get_field_modification_count_addr() { | |
| 336 // We don't grab a lock because we don't | |
| 337 // want to serialize field modification between all threads. This | |
| 338 // means that a thread on another processor can see the wrong | |
| 339 // count value and may either miss making a needed call into | |
| 340 // post_field_modification() or will make an unneeded call into | |
| 341 // post_field_modification(). We pay this price to avoid slowing | |
| 342 // down the VM when we aren't watching field modifications. | |
| 343 // Other access/mutation safe by virtue of being in VM state. | |
| 344 return (address)(&_field_modification_count); | |
| 345 } | |
| 346 | |
| 347 | |
| 348 /////////////////////////////////////////////////////////////// | |
| 349 // Functions needed by java.lang.instrument for starting up javaagent. | |
| 350 /////////////////////////////////////////////////////////////// | |
| 351 | |
| 352 jint | |
| 353 JvmtiExport::get_jvmti_interface(JavaVM *jvm, void **penv, jint version) { | |
| 1121 | 354 // The JVMTI_VERSION_INTERFACE_JVMTI part of the version number |
| 355 // has already been validated in JNI GetEnv(). | |
| 356 int major, minor, micro; | |
| 357 | |
| 358 // micro version doesn't matter here (yet?) | |
| 359 decode_version_values(version, &major, &minor, µ); | |
| 360 switch (major) { | |
| 1988 | 361 case 1: |
| 1121 | 362 switch (minor) { |
| 1988 | 363 case 0: // version 1.0.<micro> is recognized |
| 364 case 1: // version 1.1.<micro> is recognized | |
| 365 case 2: // version 1.2.<micro> is recognized | |
| 1121 | 366 break; |
| 367 | |
| 1988 | 368 default: |
| 1121 | 369 return JNI_EVERSION; // unsupported minor version number |
| 370 } | |
| 371 break; | |
| 1988 | 372 default: |
| 1121 | 373 return JNI_EVERSION; // unsupported major version number |
| 374 } | |
| 0 | 375 |
| 376 if (JvmtiEnv::get_phase() == JVMTI_PHASE_LIVE) { | |
| 377 JavaThread* current_thread = (JavaThread*) ThreadLocalStorage::thread(); | |
| 378 // transition code: native to VM | |
| 379 ThreadInVMfromNative __tiv(current_thread); | |
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380 VM_ENTRY_BASE(jvmtiEnv*, JvmtiExport::get_jvmti_interface, current_thread) |
| 0 | 381 debug_only(VMNativeEntryWrapper __vew;) |
| 382 | |
| 1121 | 383 JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
| 0 | 384 *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
| 385 return JNI_OK; | |
| 386 | |
| 387 } else if (JvmtiEnv::get_phase() == JVMTI_PHASE_ONLOAD) { | |
| 388 // not live, no thread to transition | |
| 1121 | 389 JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
| 0 | 390 *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
| 391 return JNI_OK; | |
| 392 | |
| 393 } else { | |
| 394 // Called at the wrong time | |
| 395 *penv = NULL; | |
| 396 return JNI_EDETACHED; | |
| 397 } | |
| 398 } | |
| 399 | |
| 1121 | 400 |
| 401 void | |
| 402 JvmtiExport::decode_version_values(jint version, int * major, int * minor, | |
| 403 int * micro) { | |
| 404 *major = (version & JVMTI_VERSION_MASK_MAJOR) >> JVMTI_VERSION_SHIFT_MAJOR; | |
| 405 *minor = (version & JVMTI_VERSION_MASK_MINOR) >> JVMTI_VERSION_SHIFT_MINOR; | |
| 406 *micro = (version & JVMTI_VERSION_MASK_MICRO) >> JVMTI_VERSION_SHIFT_MICRO; | |
| 407 } | |
| 408 | |
| 0 | 409 void JvmtiExport::enter_primordial_phase() { |
| 410 JvmtiEnvBase::set_phase(JVMTI_PHASE_PRIMORDIAL); | |
| 411 } | |
| 412 | |
| 413 void JvmtiExport::enter_start_phase() { | |
| 414 JvmtiManageCapabilities::recompute_always_capabilities(); | |
| 415 JvmtiEnvBase::set_phase(JVMTI_PHASE_START); | |
| 416 } | |
| 417 | |
| 418 void JvmtiExport::enter_onload_phase() { | |
| 419 JvmtiEnvBase::set_phase(JVMTI_PHASE_ONLOAD); | |
| 420 } | |
| 421 | |
| 422 void JvmtiExport::enter_live_phase() { | |
| 423 JvmtiEnvBase::set_phase(JVMTI_PHASE_LIVE); | |
| 424 } | |
| 425 | |
| 426 // | |
| 427 // JVMTI events that the VM posts to the debugger and also startup agent | |
| 428 // and call the agent's premain() for java.lang.instrument. | |
| 429 // | |
| 430 | |
| 431 void JvmtiExport::post_vm_start() { | |
| 432 EVT_TRIG_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Trg VM start event triggered" )); | |
| 433 | |
| 434 // can now enable some events | |
| 435 JvmtiEventController::vm_start(); | |
| 436 | |
| 437 JvmtiEnvIterator it; | |
| 438 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 439 if (env->is_enabled(JVMTI_EVENT_VM_START)) { | |
| 440 EVT_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Evt VM start event sent" )); | |
| 441 | |
| 442 JavaThread *thread = JavaThread::current(); | |
| 443 JvmtiThreadEventMark jem(thread); | |
| 444 JvmtiJavaThreadEventTransition jet(thread); | |
| 445 jvmtiEventVMStart callback = env->callbacks()->VMStart; | |
| 446 if (callback != NULL) { | |
| 447 (*callback)(env->jvmti_external(), jem.jni_env()); | |
| 448 } | |
| 449 } | |
| 450 } | |
| 451 } | |
| 452 | |
| 453 | |
| 454 void JvmtiExport::post_vm_initialized() { | |
| 455 EVT_TRIG_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Trg VM init event triggered" )); | |
| 456 | |
| 457 // can now enable events | |
| 458 JvmtiEventController::vm_init(); | |
| 459 | |
| 460 JvmtiEnvIterator it; | |
| 461 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 462 if (env->is_enabled(JVMTI_EVENT_VM_INIT)) { | |
| 463 EVT_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Evt VM init event sent" )); | |
| 464 | |
| 465 JavaThread *thread = JavaThread::current(); | |
| 466 JvmtiThreadEventMark jem(thread); | |
| 467 JvmtiJavaThreadEventTransition jet(thread); | |
| 468 jvmtiEventVMInit callback = env->callbacks()->VMInit; | |
| 469 if (callback != NULL) { | |
| 470 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 471 } | |
| 472 } | |
| 473 } | |
| 474 } | |
| 475 | |
| 476 | |
| 477 void JvmtiExport::post_vm_death() { | |
| 478 EVT_TRIG_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Trg VM death event triggered" )); | |
| 479 | |
| 480 JvmtiEnvIterator it; | |
| 481 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 482 if (env->is_enabled(JVMTI_EVENT_VM_DEATH)) { | |
| 483 EVT_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Evt VM death event sent" )); | |
| 484 | |
| 485 JavaThread *thread = JavaThread::current(); | |
| 486 JvmtiEventMark jem(thread); | |
| 487 JvmtiJavaThreadEventTransition jet(thread); | |
| 488 jvmtiEventVMDeath callback = env->callbacks()->VMDeath; | |
| 489 if (callback != NULL) { | |
| 490 (*callback)(env->jvmti_external(), jem.jni_env()); | |
| 491 } | |
| 492 } | |
| 493 } | |
| 494 | |
| 495 JvmtiEnvBase::set_phase(JVMTI_PHASE_DEAD); | |
| 496 JvmtiEventController::vm_death(); | |
| 497 } | |
| 498 | |
| 499 char** | |
| 500 JvmtiExport::get_all_native_method_prefixes(int* count_ptr) { | |
| 501 // Have to grab JVMTI thread state lock to be sure environment doesn't | |
| 502 // go away while we iterate them. No locks during VM bring-up. | |
| 503 if (Threads::number_of_threads() == 0 || SafepointSynchronize::is_at_safepoint()) { | |
| 504 return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); | |
| 505 } else { | |
| 506 MutexLocker mu(JvmtiThreadState_lock); | |
| 507 return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); | |
| 508 } | |
| 509 } | |
| 510 | |
| 511 class JvmtiClassFileLoadHookPoster : public StackObj { | |
| 512 private: | |
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513 Symbol* _h_name; |
| 0 | 514 Handle _class_loader; |
| 515 Handle _h_protection_domain; | |
| 516 unsigned char ** _data_ptr; | |
| 517 unsigned char ** _end_ptr; | |
| 518 JavaThread * _thread; | |
| 519 jint _curr_len; | |
| 520 unsigned char * _curr_data; | |
| 521 JvmtiEnv * _curr_env; | |
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522 JvmtiCachedClassFileData ** _cached_class_file_ptr; |
| 0 | 523 JvmtiThreadState * _state; |
| 524 KlassHandle * _h_class_being_redefined; | |
| 525 JvmtiClassLoadKind _load_kind; | |
| 526 | |
| 527 public: | |
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528 inline JvmtiClassFileLoadHookPoster(Symbol* h_name, Handle class_loader, |
| 0 | 529 Handle h_protection_domain, |
| 530 unsigned char **data_ptr, unsigned char **end_ptr, | |
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531 JvmtiCachedClassFileData **cache_ptr) { |
| 0 | 532 _h_name = h_name; |
| 533 _class_loader = class_loader; | |
| 534 _h_protection_domain = h_protection_domain; | |
| 535 _data_ptr = data_ptr; | |
| 536 _end_ptr = end_ptr; | |
| 537 _thread = JavaThread::current(); | |
| 538 _curr_len = *end_ptr - *data_ptr; | |
| 539 _curr_data = *data_ptr; | |
| 540 _curr_env = NULL; | |
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541 _cached_class_file_ptr = cache_ptr; |
| 0 | 542 |
| 543 _state = _thread->jvmti_thread_state(); | |
| 544 if (_state != NULL) { | |
| 545 _h_class_being_redefined = _state->get_class_being_redefined(); | |
| 546 _load_kind = _state->get_class_load_kind(); | |
| 547 // Clear class_being_redefined flag here. The action | |
| 548 // from agent handler could generate a new class file load | |
| 549 // hook event and if it is not cleared the new event generated | |
| 550 // from regular class file load could have this stale redefined | |
| 551 // class handle info. | |
| 552 _state->clear_class_being_redefined(); | |
| 553 } else { | |
| 554 // redefine and retransform will always set the thread state | |
| 555 _h_class_being_redefined = (KlassHandle *) NULL; | |
| 556 _load_kind = jvmti_class_load_kind_load; | |
| 557 } | |
| 558 } | |
| 559 | |
| 560 void post() { | |
| 561 // EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 562 // ("JVMTI [%s] class file load hook event triggered", | |
| 563 // JvmtiTrace::safe_get_thread_name(_thread))); | |
| 564 post_all_envs(); | |
| 565 copy_modified_data(); | |
| 566 } | |
| 567 | |
| 568 private: | |
| 569 void post_all_envs() { | |
| 570 if (_load_kind != jvmti_class_load_kind_retransform) { | |
| 571 // for class load and redefine, | |
| 572 // call the non-retransformable agents | |
| 573 JvmtiEnvIterator it; | |
| 574 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 575 if (!env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 576 // non-retransformable agents cannot retransform back, | |
| 577 // so no need to cache the original class file bytes | |
| 578 post_to_env(env, false); | |
| 579 } | |
| 580 } | |
| 581 } | |
| 582 JvmtiEnvIterator it; | |
| 583 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 584 // retransformable agents get all events | |
| 585 if (env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 586 // retransformable agents need to cache the original class file | |
| 587 // bytes if changes are made via the ClassFileLoadHook | |
| 588 post_to_env(env, true); | |
| 589 } | |
| 590 } | |
| 591 } | |
| 592 | |
| 593 void post_to_env(JvmtiEnv* env, bool caching_needed) { | |
| 594 unsigned char *new_data = NULL; | |
| 595 jint new_len = 0; | |
| 596 // EVT_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 597 // ("JVMTI [%s] class file load hook event sent %s data_ptr = %d, data_len = %d", | |
| 598 // JvmtiTrace::safe_get_thread_name(_thread), | |
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599 // _h_name == NULL ? "NULL" : _h_name->as_utf8(), |
| 0 | 600 // _curr_data, _curr_len )); |
| 601 JvmtiClassFileLoadEventMark jem(_thread, _h_name, _class_loader, | |
| 602 _h_protection_domain, | |
| 603 _h_class_being_redefined); | |
| 604 JvmtiJavaThreadEventTransition jet(_thread); | |
| 605 JNIEnv* jni_env = (JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL)? | |
| 606 NULL : jem.jni_env(); | |
| 607 jvmtiEventClassFileLoadHook callback = env->callbacks()->ClassFileLoadHook; | |
| 608 if (callback != NULL) { | |
| 609 (*callback)(env->jvmti_external(), jni_env, | |
| 610 jem.class_being_redefined(), | |
| 611 jem.jloader(), jem.class_name(), | |
| 612 jem.protection_domain(), | |
| 613 _curr_len, _curr_data, | |
| 614 &new_len, &new_data); | |
| 615 } | |
| 616 if (new_data != NULL) { | |
| 617 // this agent has modified class data. | |
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618 if (caching_needed && *_cached_class_file_ptr == NULL) { |
| 0 | 619 // data has been changed by the new retransformable agent |
| 620 // and it hasn't already been cached, cache it | |
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621 JvmtiCachedClassFileData *p; |
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622 p = (JvmtiCachedClassFileData *)os::malloc( |
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623 offset_of(JvmtiCachedClassFileData, data) + _curr_len, mtInternal); |
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624 if (p == NULL) { |
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625 vm_exit_out_of_memory(offset_of(JvmtiCachedClassFileData, data) + _curr_len, |
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626 OOM_MALLOC_ERROR, |
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627 "unable to allocate cached copy of original class bytes"); |
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628 } |
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629 p->length = _curr_len; |
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630 memcpy(p->data, _curr_data, _curr_len); |
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631 *_cached_class_file_ptr = p; |
| 0 | 632 } |
| 633 | |
| 634 if (_curr_data != *_data_ptr) { | |
| 635 // curr_data is previous agent modified class data. | |
| 636 // And this has been changed by the new agent so | |
| 637 // we can delete it now. | |
| 638 _curr_env->Deallocate(_curr_data); | |
| 639 } | |
| 640 | |
| 641 // Class file data has changed by the current agent. | |
| 642 _curr_data = new_data; | |
| 643 _curr_len = new_len; | |
| 644 // Save the current agent env we need this to deallocate the | |
| 645 // memory allocated by this agent. | |
| 646 _curr_env = env; | |
| 647 } | |
| 648 } | |
| 649 | |
| 650 void copy_modified_data() { | |
| 651 // if one of the agent has modified class file data. | |
| 652 // Copy modified class data to new resources array. | |
| 653 if (_curr_data != *_data_ptr) { | |
| 654 *_data_ptr = NEW_RESOURCE_ARRAY(u1, _curr_len); | |
| 655 memcpy(*_data_ptr, _curr_data, _curr_len); | |
| 656 *_end_ptr = *_data_ptr + _curr_len; | |
| 657 _curr_env->Deallocate(_curr_data); | |
| 658 } | |
| 659 } | |
| 660 }; | |
| 661 | |
| 662 bool JvmtiExport::_should_post_class_file_load_hook = false; | |
| 663 | |
| 664 // this entry is for class file load hook on class load, redefine and retransform | |
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665 void JvmtiExport::post_class_file_load_hook(Symbol* h_name, |
| 0 | 666 Handle class_loader, |
| 667 Handle h_protection_domain, | |
| 668 unsigned char **data_ptr, | |
| 669 unsigned char **end_ptr, | |
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670 JvmtiCachedClassFileData **cache_ptr) { |
| 0 | 671 JvmtiClassFileLoadHookPoster poster(h_name, class_loader, |
| 672 h_protection_domain, | |
| 673 data_ptr, end_ptr, | |
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674 cache_ptr); |
| 0 | 675 poster.post(); |
| 676 } | |
| 677 | |
| 678 void JvmtiExport::report_unsupported(bool on) { | |
| 679 // If any JVMTI service is turned on, we need to exit before native code | |
| 680 // tries to access nonexistant services. | |
| 681 if (on) { | |
| 682 vm_exit_during_initialization("Java Kernel does not support JVMTI."); | |
| 683 } | |
| 684 } | |
| 685 | |
| 686 | |
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687 static inline Klass* oop_to_klass(oop obj) { |
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688 Klass* k = obj->klass(); |
| 0 | 689 |
| 690 // if the object is a java.lang.Class then return the java mirror | |
| 1142 | 691 if (k == SystemDictionary::Class_klass()) { |
| 0 | 692 if (!java_lang_Class::is_primitive(obj)) { |
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693 k = java_lang_Class::as_Klass(obj); |
| 0 | 694 assert(k != NULL, "class for non-primitive mirror must exist"); |
| 695 } | |
| 696 } | |
| 697 return k; | |
| 698 } | |
| 699 | |
| 700 class JvmtiVMObjectAllocEventMark : public JvmtiClassEventMark { | |
| 701 private: | |
| 702 jobject _jobj; | |
| 703 jlong _size; | |
| 704 public: | |
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705 JvmtiVMObjectAllocEventMark(JavaThread *thread, oop obj) : JvmtiClassEventMark(thread, oop_to_klass(obj)) { |
| 0 | 706 _jobj = (jobject)to_jobject(obj); |
| 707 _size = obj->size() * wordSize; | |
| 708 }; | |
| 709 jobject jni_jobject() { return _jobj; } | |
| 710 jlong size() { return _size; } | |
| 711 }; | |
| 712 | |
| 713 class JvmtiCompiledMethodLoadEventMark : public JvmtiMethodEventMark { | |
| 714 private: | |
| 715 jint _code_size; | |
| 716 const void *_code_data; | |
| 717 jint _map_length; | |
| 718 jvmtiAddrLocationMap *_map; | |
| 719 const void *_compile_info; | |
| 720 public: | |
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721 JvmtiCompiledMethodLoadEventMark(JavaThread *thread, nmethod *nm, void* compile_info_ptr = NULL) |
| 0 | 722 : JvmtiMethodEventMark(thread,methodHandle(thread, nm->method())) { |
| 1748 | 723 _code_data = nm->insts_begin(); |
| 724 _code_size = nm->insts_size(); | |
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725 _compile_info = compile_info_ptr; // Set void pointer of compiledMethodLoad Event. Default value is NULL. |
| 0 | 726 JvmtiCodeBlobEvents::build_jvmti_addr_location_map(nm, &_map, &_map_length); |
| 727 } | |
| 728 ~JvmtiCompiledMethodLoadEventMark() { | |
| 6197 | 729 FREE_C_HEAP_ARRAY(jvmtiAddrLocationMap, _map, mtInternal); |
| 0 | 730 } |
| 731 | |
| 732 jint code_size() { return _code_size; } | |
| 733 const void *code_data() { return _code_data; } | |
| 734 jint map_length() { return _map_length; } | |
| 735 const jvmtiAddrLocationMap* map() { return _map; } | |
| 736 const void *compile_info() { return _compile_info; } | |
| 737 }; | |
| 738 | |
| 739 | |
| 740 | |
| 741 class JvmtiMonitorEventMark : public JvmtiThreadEventMark { | |
| 742 private: | |
| 743 jobject _jobj; | |
| 744 public: | |
| 745 JvmtiMonitorEventMark(JavaThread *thread, oop object) | |
| 746 : JvmtiThreadEventMark(thread){ | |
| 747 _jobj = to_jobject(object); | |
| 748 } | |
| 749 jobject jni_object() { return _jobj; } | |
| 750 }; | |
| 751 | |
| 752 /////////////////////////////////////////////////////////////// | |
| 753 // | |
| 754 // pending CompiledMethodUnload support | |
| 755 // | |
| 756 | |
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757 void JvmtiExport::post_compiled_method_unload( |
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758 jmethodID method, const void *code_begin) { |
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759 JavaThread* thread = JavaThread::current(); |
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760 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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761 ("JVMTI [%s] method compile unload event triggered", |
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762 JvmtiTrace::safe_get_thread_name(thread))); |
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763 |
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764 // post the event for each environment that has this event enabled. |
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765 JvmtiEnvIterator it; |
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766 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
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767 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_UNLOAD)) { |
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768 |
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769 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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770 ("JVMTI [%s] class compile method unload event sent jmethodID " PTR_FORMAT, |
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771 JvmtiTrace::safe_get_thread_name(thread), method)); |
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772 |
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773 ResourceMark rm(thread); |
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774 |
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775 JvmtiEventMark jem(thread); |
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776 JvmtiJavaThreadEventTransition jet(thread); |
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777 jvmtiEventCompiledMethodUnload callback = env->callbacks()->CompiledMethodUnload; |
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778 if (callback != NULL) { |
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779 (*callback)(env->jvmti_external(), method, code_begin); |
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780 } |
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781 } |
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782 } |
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783 } |
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784 |
| 0 | 785 /////////////////////////////////////////////////////////////// |
| 786 // | |
| 787 // JvmtiExport | |
| 788 // | |
| 789 | |
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790 void JvmtiExport::post_raw_breakpoint(JavaThread *thread, Method* method, address location) { |
| 0 | 791 HandleMark hm(thread); |
| 792 methodHandle mh(thread, method); | |
| 793 | |
| 794 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 795 if (state == NULL) { | |
| 796 return; | |
| 797 } | |
| 798 EVT_TRIG_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Trg Breakpoint triggered", | |
| 799 JvmtiTrace::safe_get_thread_name(thread))); | |
| 800 JvmtiEnvThreadStateIterator it(state); | |
| 801 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 802 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_BREAKPOINT); | |
| 803 if (!ets->breakpoint_posted() && ets->is_enabled(JVMTI_EVENT_BREAKPOINT)) { | |
| 804 ThreadState old_os_state = thread->osthread()->get_state(); | |
| 805 thread->osthread()->set_state(BREAKPOINTED); | |
| 806 EVT_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Evt Breakpoint sent %s.%s @ %d", | |
| 807 JvmtiTrace::safe_get_thread_name(thread), | |
| 808 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 809 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 810 location - mh()->code_base() )); | |
| 811 | |
| 812 JvmtiEnv *env = ets->get_env(); | |
| 813 JvmtiLocationEventMark jem(thread, mh, location); | |
| 814 JvmtiJavaThreadEventTransition jet(thread); | |
| 815 jvmtiEventBreakpoint callback = env->callbacks()->Breakpoint; | |
| 816 if (callback != NULL) { | |
| 817 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 818 jem.jni_methodID(), jem.location()); | |
| 819 } | |
| 820 | |
| 821 ets->set_breakpoint_posted(); | |
| 822 thread->osthread()->set_state(old_os_state); | |
| 823 } | |
| 824 } | |
| 825 } | |
| 826 | |
| 827 ////////////////////////////////////////////////////////////////////////////// | |
| 828 | |
| 829 bool JvmtiExport::_can_get_source_debug_extension = false; | |
| 830 bool JvmtiExport::_can_maintain_original_method_order = false; | |
| 831 bool JvmtiExport::_can_post_interpreter_events = false; | |
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832 bool JvmtiExport::_can_post_on_exceptions = false; |
| 0 | 833 bool JvmtiExport::_can_post_breakpoint = false; |
| 834 bool JvmtiExport::_can_post_field_access = false; | |
| 835 bool JvmtiExport::_can_post_field_modification = false; | |
| 836 bool JvmtiExport::_can_post_method_entry = false; | |
| 837 bool JvmtiExport::_can_post_method_exit = false; | |
| 838 bool JvmtiExport::_can_pop_frame = false; | |
| 839 bool JvmtiExport::_can_force_early_return = false; | |
| 840 | |
| 841 bool JvmtiExport::_should_post_single_step = false; | |
| 842 bool JvmtiExport::_should_post_field_access = false; | |
| 843 bool JvmtiExport::_should_post_field_modification = false; | |
| 844 bool JvmtiExport::_should_post_class_load = false; | |
| 845 bool JvmtiExport::_should_post_class_prepare = false; | |
| 846 bool JvmtiExport::_should_post_class_unload = false; | |
| 847 bool JvmtiExport::_should_post_thread_life = false; | |
| 848 bool JvmtiExport::_should_clean_up_heap_objects = false; | |
| 849 bool JvmtiExport::_should_post_native_method_bind = false; | |
| 850 bool JvmtiExport::_should_post_dynamic_code_generated = false; | |
| 851 bool JvmtiExport::_should_post_data_dump = false; | |
| 852 bool JvmtiExport::_should_post_compiled_method_load = false; | |
| 853 bool JvmtiExport::_should_post_compiled_method_unload = false; | |
| 854 bool JvmtiExport::_should_post_monitor_contended_enter = false; | |
| 855 bool JvmtiExport::_should_post_monitor_contended_entered = false; | |
| 856 bool JvmtiExport::_should_post_monitor_wait = false; | |
| 857 bool JvmtiExport::_should_post_monitor_waited = false; | |
| 858 bool JvmtiExport::_should_post_garbage_collection_start = false; | |
| 859 bool JvmtiExport::_should_post_garbage_collection_finish = false; | |
| 860 bool JvmtiExport::_should_post_object_free = false; | |
| 861 bool JvmtiExport::_should_post_resource_exhausted = false; | |
| 862 bool JvmtiExport::_should_post_vm_object_alloc = false; | |
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863 bool JvmtiExport::_should_post_on_exceptions = false; |
| 0 | 864 |
| 865 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 866 | |
| 867 | |
| 868 // | |
| 869 // JVMTI single step management | |
| 870 // | |
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871 void JvmtiExport::at_single_stepping_point(JavaThread *thread, Method* method, address location) { |
| 0 | 872 assert(JvmtiExport::should_post_single_step(), "must be single stepping"); |
| 873 | |
| 874 HandleMark hm(thread); | |
| 875 methodHandle mh(thread, method); | |
| 876 | |
| 877 // update information about current location and post a step event | |
| 878 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 879 if (state == NULL) { | |
| 880 return; | |
| 881 } | |
| 882 EVT_TRIG_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Trg Single Step triggered", | |
| 883 JvmtiTrace::safe_get_thread_name(thread))); | |
| 884 if (!state->hide_single_stepping()) { | |
| 885 if (state->is_pending_step_for_popframe()) { | |
| 886 state->process_pending_step_for_popframe(); | |
| 887 } | |
| 888 if (state->is_pending_step_for_earlyret()) { | |
| 889 state->process_pending_step_for_earlyret(); | |
| 890 } | |
| 891 JvmtiExport::post_single_step(thread, mh(), location); | |
| 892 } | |
| 893 } | |
| 894 | |
| 895 | |
| 896 void JvmtiExport::expose_single_stepping(JavaThread *thread) { | |
| 897 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 898 if (state != NULL) { | |
| 899 state->clear_hide_single_stepping(); | |
| 900 } | |
| 901 } | |
| 902 | |
| 903 | |
| 904 bool JvmtiExport::hide_single_stepping(JavaThread *thread) { | |
| 905 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 906 if (state != NULL && state->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 907 state->set_hide_single_stepping(); | |
| 908 return true; | |
| 909 } else { | |
| 910 return false; | |
| 911 } | |
| 912 } | |
| 913 | |
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914 void JvmtiExport::post_class_load(JavaThread *thread, Klass* klass) { |
| 0 | 915 HandleMark hm(thread); |
| 916 KlassHandle kh(thread, klass); | |
| 917 | |
| 918 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Trg Class Load triggered", | |
| 919 JvmtiTrace::safe_get_thread_name(thread))); | |
| 920 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 921 if (state == NULL) { | |
| 922 return; | |
| 923 } | |
| 924 JvmtiEnvThreadStateIterator it(state); | |
| 925 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 926 if (ets->is_enabled(JVMTI_EVENT_CLASS_LOAD)) { | |
| 927 EVT_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Evt Class Load sent %s", | |
| 928 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 929 kh()==NULL? "NULL" : kh()->external_name() )); |
| 0 | 930 |
| 931 JvmtiEnv *env = ets->get_env(); | |
| 932 JvmtiClassEventMark jem(thread, kh()); | |
| 933 JvmtiJavaThreadEventTransition jet(thread); | |
| 934 jvmtiEventClassLoad callback = env->callbacks()->ClassLoad; | |
| 935 if (callback != NULL) { | |
| 936 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 937 } | |
| 938 } | |
| 939 } | |
| 940 } | |
| 941 | |
| 942 | |
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943 void JvmtiExport::post_class_prepare(JavaThread *thread, Klass* klass) { |
| 0 | 944 HandleMark hm(thread); |
| 945 KlassHandle kh(thread, klass); | |
| 946 | |
| 947 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Trg Class Prepare triggered", | |
| 948 JvmtiTrace::safe_get_thread_name(thread))); | |
| 949 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 950 if (state == NULL) { | |
| 951 return; | |
| 952 } | |
| 953 JvmtiEnvThreadStateIterator it(state); | |
| 954 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 955 if (ets->is_enabled(JVMTI_EVENT_CLASS_PREPARE)) { | |
| 956 EVT_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Evt Class Prepare sent %s", | |
| 957 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 958 kh()==NULL? "NULL" : kh()->external_name() )); |
| 0 | 959 |
| 960 JvmtiEnv *env = ets->get_env(); | |
| 961 JvmtiClassEventMark jem(thread, kh()); | |
| 962 JvmtiJavaThreadEventTransition jet(thread); | |
| 963 jvmtiEventClassPrepare callback = env->callbacks()->ClassPrepare; | |
| 964 if (callback != NULL) { | |
| 965 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 966 } | |
| 967 } | |
| 968 } | |
| 969 } | |
| 970 | |
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971 void JvmtiExport::post_class_unload(Klass* klass) { |
| 0 | 972 Thread *thread = Thread::current(); |
| 973 HandleMark hm(thread); | |
| 974 KlassHandle kh(thread, klass); | |
| 975 | |
| 976 EVT_TRIG_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Trg Class Unload triggered" )); | |
| 977 if (JvmtiEventController::is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 978 assert(thread->is_VM_thread(), "wrong thread"); | |
| 979 | |
| 980 // get JavaThread for whom we are proxy | |
| 981 JavaThread *real_thread = | |
| 982 (JavaThread *)((VMThread *)thread)->vm_operation()->calling_thread(); | |
| 983 | |
| 984 JvmtiEnvIterator it; | |
| 985 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 986 if (env->is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 987 EVT_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Evt Class Unload sent %s", | |
| 6983 | 988 kh()==NULL? "NULL" : kh()->external_name() )); |
| 0 | 989 |
| 990 // do everything manually, since this is a proxy - needs special care | |
| 991 JNIEnv* jni_env = real_thread->jni_environment(); | |
| 992 jthread jt = (jthread)JNIHandles::make_local(real_thread, real_thread->threadObj()); | |
| 6983 | 993 jclass jk = (jclass)JNIHandles::make_local(real_thread, kh()->java_mirror()); |
| 0 | 994 |
| 995 // Before we call the JVMTI agent, we have to set the state in the | |
| 996 // thread for which we are proxying. | |
| 997 JavaThreadState prev_state = real_thread->thread_state(); | |
| 998 assert(prev_state == _thread_blocked, "JavaThread should be at safepoint"); | |
| 999 real_thread->set_thread_state(_thread_in_native); | |
| 1000 | |
| 1001 jvmtiExtensionEvent callback = env->ext_callbacks()->ClassUnload; | |
| 1002 if (callback != NULL) { | |
| 1003 (*callback)(env->jvmti_external(), jni_env, jt, jk); | |
| 1004 } | |
| 1005 | |
| 1006 assert(real_thread->thread_state() == _thread_in_native, | |
| 1007 "JavaThread should be in native"); | |
| 1008 real_thread->set_thread_state(prev_state); | |
| 1009 | |
| 1010 JNIHandles::destroy_local(jk); | |
| 1011 JNIHandles::destroy_local(jt); | |
| 1012 } | |
| 1013 } | |
| 1014 } | |
| 1015 } | |
| 1016 | |
| 1017 | |
| 1018 void JvmtiExport::post_thread_start(JavaThread *thread) { | |
| 1019 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1020 | |
| 1021 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Trg Thread Start event triggered", | |
| 1022 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1023 | |
| 1024 // do JVMTI thread initialization (if needed) | |
| 1025 JvmtiEventController::thread_started(thread); | |
| 1026 | |
| 1027 // Do not post thread start event for hidden java thread. | |
| 1028 if (JvmtiEventController::is_enabled(JVMTI_EVENT_THREAD_START) && | |
| 1029 !thread->is_hidden_from_external_view()) { | |
| 1030 JvmtiEnvIterator it; | |
| 1031 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1032 if (env->is_enabled(JVMTI_EVENT_THREAD_START)) { | |
| 1033 EVT_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Evt Thread Start event sent", | |
| 1034 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1035 | |
| 1036 JvmtiThreadEventMark jem(thread); | |
| 1037 JvmtiJavaThreadEventTransition jet(thread); | |
| 1038 jvmtiEventThreadStart callback = env->callbacks()->ThreadStart; | |
| 1039 if (callback != NULL) { | |
| 1040 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1041 } | |
| 1042 } | |
| 1043 } | |
| 1044 } | |
| 1045 } | |
| 1046 | |
| 1047 | |
| 1048 void JvmtiExport::post_thread_end(JavaThread *thread) { | |
| 1049 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Trg Thread End event triggered", | |
| 1050 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1051 | |
| 1052 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1053 if (state == NULL) { | |
| 1054 return; | |
| 1055 } | |
| 1056 | |
| 1057 // Do not post thread end event for hidden java thread. | |
| 1058 if (state->is_enabled(JVMTI_EVENT_THREAD_END) && | |
| 1059 !thread->is_hidden_from_external_view()) { | |
| 1060 | |
| 1061 JvmtiEnvThreadStateIterator it(state); | |
| 1062 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1063 if (ets->is_enabled(JVMTI_EVENT_THREAD_END)) { | |
| 1064 EVT_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Evt Thread End event sent", | |
| 1065 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1066 | |
| 1067 JvmtiEnv *env = ets->get_env(); | |
| 1068 JvmtiThreadEventMark jem(thread); | |
| 1069 JvmtiJavaThreadEventTransition jet(thread); | |
| 1070 jvmtiEventThreadEnd callback = env->callbacks()->ThreadEnd; | |
| 1071 if (callback != NULL) { | |
| 1072 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1073 } | |
| 1074 } | |
| 1075 } | |
| 1076 } | |
| 1077 } | |
| 1078 | |
| 1079 void JvmtiExport::post_object_free(JvmtiEnv* env, jlong tag) { | |
| 1080 assert(SafepointSynchronize::is_at_safepoint(), "must be executed at safepoint"); | |
| 1081 assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE), "checking"); | |
| 1082 | |
| 1083 EVT_TRIG_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Trg Object Free triggered" )); | |
| 1084 EVT_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Evt Object Free sent")); | |
| 1085 | |
| 1086 jvmtiEventObjectFree callback = env->callbacks()->ObjectFree; | |
| 1087 if (callback != NULL) { | |
| 1088 (*callback)(env->jvmti_external(), tag); | |
| 1089 } | |
| 1090 } | |
| 1091 | |
| 1092 void JvmtiExport::post_resource_exhausted(jint resource_exhausted_flags, const char* description) { | |
| 1093 EVT_TRIG_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Trg resource exhausted event triggered" )); | |
| 1094 | |
| 1095 JvmtiEnvIterator it; | |
| 1096 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1097 if (env->is_enabled(JVMTI_EVENT_RESOURCE_EXHAUSTED)) { | |
| 1098 EVT_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Evt resource exhausted event sent" )); | |
| 1099 | |
| 1100 JavaThread *thread = JavaThread::current(); | |
| 1101 JvmtiThreadEventMark jem(thread); | |
| 1102 JvmtiJavaThreadEventTransition jet(thread); | |
| 1103 jvmtiEventResourceExhausted callback = env->callbacks()->ResourceExhausted; | |
| 1104 if (callback != NULL) { | |
| 1105 (*callback)(env->jvmti_external(), jem.jni_env(), | |
| 1106 resource_exhausted_flags, NULL, description); | |
| 1107 } | |
| 1108 } | |
| 1109 } | |
| 1110 } | |
| 1111 | |
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1112 void JvmtiExport::post_method_entry(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1113 HandleMark hm(thread); |
| 1114 methodHandle mh(thread, method); | |
| 1115 | |
| 1116 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Trg Method Entry triggered %s.%s", | |
| 1117 JvmtiTrace::safe_get_thread_name(thread), | |
| 1118 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1119 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1120 | |
| 1121 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 1122 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1123 // for any thread that actually wants method entry, interp_only_mode is set | |
| 1124 return; | |
| 1125 } | |
| 1126 | |
| 1127 state->incr_cur_stack_depth(); | |
| 1128 | |
| 1129 if (state->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1130 JvmtiEnvThreadStateIterator it(state); | |
| 1131 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1132 if (ets->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1133 EVT_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Evt Method Entry sent %s.%s", | |
| 1134 JvmtiTrace::safe_get_thread_name(thread), | |
| 1135 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1136 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1137 | |
| 1138 JvmtiEnv *env = ets->get_env(); | |
| 1139 JvmtiMethodEventMark jem(thread, mh); | |
| 1140 JvmtiJavaThreadEventTransition jet(thread); | |
| 1141 jvmtiEventMethodEntry callback = env->callbacks()->MethodEntry; | |
| 1142 if (callback != NULL) { | |
| 1143 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_methodID()); | |
| 1144 } | |
| 1145 } | |
| 1146 } | |
| 1147 } | |
| 1148 } | |
| 1149 | |
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1150 void JvmtiExport::post_method_exit(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1151 HandleMark hm(thread); |
| 1152 methodHandle mh(thread, method); | |
| 1153 | |
| 1154 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Trg Method Exit triggered %s.%s", | |
| 1155 JvmtiTrace::safe_get_thread_name(thread), | |
| 1156 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1157 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1158 | |
| 1159 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1160 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1161 // for any thread that actually wants method exit, interp_only_mode is set | |
| 1162 return; | |
| 1163 } | |
| 1164 | |
| 1165 // return a flag when a method terminates by throwing an exception | |
| 1166 // i.e. if an exception is thrown and it's not caught by the current method | |
| 1167 bool exception_exit = state->is_exception_detected() && !state->is_exception_caught(); | |
| 1168 | |
| 1169 | |
| 1170 if (state->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1171 Handle result; | |
| 1172 jvalue value; | |
| 1173 value.j = 0L; | |
| 1174 | |
| 1175 // if the method hasn't been popped because of an exception then we populate | |
| 1176 // the return_value parameter for the callback. At this point we only have | |
| 1177 // the address of a "raw result" and we just call into the interpreter to | |
| 1178 // convert this into a jvalue. | |
| 1179 if (!exception_exit) { | |
| 1180 oop oop_result; | |
| 1181 BasicType type = current_frame.interpreter_frame_result(&oop_result, &value); | |
| 1182 if (type == T_OBJECT || type == T_ARRAY) { | |
| 1183 result = Handle(thread, oop_result); | |
| 1184 } | |
| 1185 } | |
| 1186 | |
| 1187 JvmtiEnvThreadStateIterator it(state); | |
| 1188 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1189 if (ets->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1190 EVT_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Evt Method Exit sent %s.%s", | |
| 1191 JvmtiTrace::safe_get_thread_name(thread), | |
| 1192 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1193 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1194 | |
| 1195 JvmtiEnv *env = ets->get_env(); | |
| 1196 JvmtiMethodEventMark jem(thread, mh); | |
| 1197 if (result.not_null()) { | |
| 1198 value.l = JNIHandles::make_local(thread, result()); | |
| 1199 } | |
| 1200 JvmtiJavaThreadEventTransition jet(thread); | |
| 1201 jvmtiEventMethodExit callback = env->callbacks()->MethodExit; | |
| 1202 if (callback != NULL) { | |
| 1203 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1204 jem.jni_methodID(), exception_exit, value); | |
| 1205 } | |
| 1206 } | |
| 1207 } | |
| 1208 } | |
| 1209 | |
| 1210 if (state->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1211 JvmtiEnvThreadStateIterator it(state); | |
| 1212 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1213 int cur_frame_number = state->cur_stack_depth(); | |
| 1214 | |
| 1215 if (ets->is_frame_pop(cur_frame_number)) { | |
| 1216 // we have a NotifyFramePop entry for this frame. | |
| 1217 // now check that this env/thread wants this event | |
| 1218 if (ets->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1219 EVT_TRACE(JVMTI_EVENT_FRAME_POP, ("JVMTI [%s] Evt Frame Pop sent %s.%s", | |
| 1220 JvmtiTrace::safe_get_thread_name(thread), | |
| 1221 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1222 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1223 | |
| 1224 // we also need to issue a frame pop event for this frame | |
| 1225 JvmtiEnv *env = ets->get_env(); | |
| 1226 JvmtiMethodEventMark jem(thread, mh); | |
| 1227 JvmtiJavaThreadEventTransition jet(thread); | |
| 1228 jvmtiEventFramePop callback = env->callbacks()->FramePop; | |
| 1229 if (callback != NULL) { | |
| 1230 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1231 jem.jni_methodID(), exception_exit); | |
| 1232 } | |
| 1233 } | |
| 1234 // remove the frame's entry | |
| 1235 ets->clear_frame_pop(cur_frame_number); | |
| 1236 } | |
| 1237 } | |
| 1238 } | |
| 1239 | |
| 1240 state->decr_cur_stack_depth(); | |
| 1241 } | |
| 1242 | |
| 1243 | |
| 1244 // Todo: inline this for optimization | |
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1245 void JvmtiExport::post_single_step(JavaThread *thread, Method* method, address location) { |
| 0 | 1246 HandleMark hm(thread); |
| 1247 methodHandle mh(thread, method); | |
| 1248 | |
| 1249 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1250 if (state == NULL) { | |
| 1251 return; | |
| 1252 } | |
| 1253 JvmtiEnvThreadStateIterator it(state); | |
| 1254 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1255 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_SINGLE_STEP); | |
| 1256 if (!ets->single_stepping_posted() && ets->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 1257 EVT_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Evt Single Step sent %s.%s @ %d", | |
| 1258 JvmtiTrace::safe_get_thread_name(thread), | |
| 1259 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1260 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1261 location - mh()->code_base() )); | |
| 1262 | |
| 1263 JvmtiEnv *env = ets->get_env(); | |
| 1264 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1265 JvmtiJavaThreadEventTransition jet(thread); | |
| 1266 jvmtiEventSingleStep callback = env->callbacks()->SingleStep; | |
| 1267 if (callback != NULL) { | |
| 1268 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1269 jem.jni_methodID(), jem.location()); | |
| 1270 } | |
| 1271 | |
| 1272 ets->set_single_stepping_posted(); | |
| 1273 } | |
| 1274 } | |
| 1275 } | |
| 1276 | |
| 1277 | |
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1278 void JvmtiExport::post_exception_throw(JavaThread *thread, Method* method, address location, oop exception) { |
| 0 | 1279 HandleMark hm(thread); |
| 1280 methodHandle mh(thread, method); | |
| 1281 Handle exception_handle(thread, exception); | |
| 1282 | |
| 1283 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1284 if (state == NULL) { | |
| 1285 return; | |
| 1286 } | |
| 1287 | |
| 1288 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION, ("JVMTI [%s] Trg Exception thrown triggered", | |
| 1289 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1290 if (!state->is_exception_detected()) { | |
| 1291 state->set_exception_detected(); | |
| 1292 JvmtiEnvThreadStateIterator it(state); | |
| 1293 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1294 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION) && (exception != NULL)) { | |
| 1295 | |
| 1296 EVT_TRACE(JVMTI_EVENT_EXCEPTION, | |
| 1297 ("JVMTI [%s] Evt Exception thrown sent %s.%s @ %d", | |
| 1298 JvmtiTrace::safe_get_thread_name(thread), | |
| 1299 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1300 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1301 location - mh()->code_base() )); | |
| 1302 | |
| 1303 JvmtiEnv *env = ets->get_env(); | |
| 1304 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1305 | |
| 1306 // It's okay to clear these exceptions here because we duplicate | |
| 1307 // this lookup in InterpreterRuntime::exception_handler_for_exception. | |
| 1308 EXCEPTION_MARK; | |
| 1309 | |
| 1310 bool should_repeat; | |
| 1311 vframeStream st(thread); | |
| 1312 assert(!st.at_end(), "cannot be at end"); | |
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1313 Method* current_method = NULL; |
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1314 // A GC may occur during the Method::fast_exception_handler_bci_for() |
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1315 // call below if it needs to load the constraint class. Using a |
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1316 // methodHandle to keep the 'current_method' from being deallocated |
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1317 // if GC happens. |
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1318 methodHandle current_mh = methodHandle(thread, current_method); |
| 0 | 1319 int current_bci = -1; |
| 1320 do { | |
| 1321 current_method = st.method(); | |
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1322 current_mh = methodHandle(thread, current_method); |
| 0 | 1323 current_bci = st.bci(); |
| 1324 do { | |
| 1325 should_repeat = false; | |
| 1326 KlassHandle eh_klass(thread, exception_handle()->klass()); | |
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1327 current_bci = Method::fast_exception_handler_bci_for( |
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1328 current_mh, eh_klass, current_bci, THREAD); |
| 0 | 1329 if (HAS_PENDING_EXCEPTION) { |
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1330 exception_handle = Handle(thread, PENDING_EXCEPTION); |
| 0 | 1331 CLEAR_PENDING_EXCEPTION; |
| 1332 should_repeat = true; | |
| 1333 } | |
| 1334 } while (should_repeat && (current_bci != -1)); | |
| 1335 st.next(); | |
| 1336 } while ((current_bci < 0) && (!st.at_end())); | |
| 1337 | |
| 1338 jmethodID catch_jmethodID; | |
| 1339 if (current_bci < 0) { | |
| 1340 catch_jmethodID = 0; | |
| 1341 current_bci = 0; | |
| 1342 } else { | |
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1343 catch_jmethodID = jem.to_jmethodID(current_mh); |
| 0 | 1344 } |
| 1345 | |
| 1346 JvmtiJavaThreadEventTransition jet(thread); | |
| 1347 jvmtiEventException callback = env->callbacks()->Exception; | |
| 1348 if (callback != NULL) { | |
| 1349 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1350 jem.jni_methodID(), jem.location(), | |
| 1351 jem.exception(), | |
| 1352 catch_jmethodID, current_bci); | |
| 1353 } | |
| 1354 } | |
| 1355 } | |
| 1356 } | |
| 1357 | |
| 1358 // frames may get popped because of this throw, be safe - invalidate cached depth | |
| 1359 state->invalidate_cur_stack_depth(); | |
| 1360 } | |
| 1361 | |
| 1362 | |
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1363 void JvmtiExport::notice_unwind_due_to_exception(JavaThread *thread, Method* method, address location, oop exception, bool in_handler_frame) { |
| 0 | 1364 HandleMark hm(thread); |
| 1365 methodHandle mh(thread, method); | |
| 1366 Handle exception_handle(thread, exception); | |
| 1367 | |
| 1368 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1369 if (state == NULL) { | |
| 1370 return; | |
| 1371 } | |
| 1372 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1373 ("JVMTI [%s] Trg unwind_due_to_exception triggered %s.%s @ %s%d - %s", | |
| 1374 JvmtiTrace::safe_get_thread_name(thread), | |
| 1375 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1376 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1377 location==0? "no location:" : "", | |
| 1378 location==0? 0 : location - mh()->code_base(), | |
| 1379 in_handler_frame? "in handler frame" : "not handler frame" )); | |
| 1380 | |
| 1381 if (state->is_exception_detected()) { | |
| 1382 | |
| 1383 state->invalidate_cur_stack_depth(); | |
| 1384 if (!in_handler_frame) { | |
| 1385 // Not in exception handler. | |
| 1386 if(state->is_interp_only_mode()) { | |
| 1387 // method exit and frame pop events are posted only in interp mode. | |
| 1388 // When these events are enabled code should be in running in interp mode. | |
| 1389 JvmtiExport::post_method_exit(thread, method, thread->last_frame()); | |
| 1390 // The cached cur_stack_depth might have changed from the | |
| 1391 // operations of frame pop or method exit. We are not 100% sure | |
| 1392 // the cached cur_stack_depth is still valid depth so invalidate | |
| 1393 // it. | |
| 1394 state->invalidate_cur_stack_depth(); | |
| 1395 } | |
| 1396 } else { | |
| 1397 // In exception handler frame. Report exception catch. | |
| 1398 assert(location != NULL, "must be a known location"); | |
| 1399 // Update cur_stack_depth - the frames above the current frame | |
| 1400 // have been unwound due to this exception: | |
| 1401 assert(!state->is_exception_caught(), "exception must not be caught yet."); | |
| 1402 state->set_exception_caught(); | |
| 1403 | |
| 1404 JvmtiEnvThreadStateIterator it(state); | |
| 1405 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1406 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION_CATCH) && (exception_handle() != NULL)) { | |
| 1407 EVT_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1408 ("JVMTI [%s] Evt ExceptionCatch sent %s.%s @ %d", | |
| 1409 JvmtiTrace::safe_get_thread_name(thread), | |
| 1410 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1411 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1412 location - mh()->code_base() )); | |
| 1413 | |
| 1414 JvmtiEnv *env = ets->get_env(); | |
| 1415 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1416 JvmtiJavaThreadEventTransition jet(thread); | |
| 1417 jvmtiEventExceptionCatch callback = env->callbacks()->ExceptionCatch; | |
| 1418 if (callback != NULL) { | |
| 1419 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1420 jem.jni_methodID(), jem.location(), | |
| 1421 jem.exception()); | |
| 1422 } | |
| 1423 } | |
| 1424 } | |
| 1425 } | |
| 1426 } | |
| 1427 } | |
| 1428 | |
| 1429 oop JvmtiExport::jni_GetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1430 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1431 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1432 // At least one field access watch is set so we have more work | |
| 1433 // to do. This wrapper is used by entry points that allow us | |
| 1434 // to create handles in post_field_access_by_jni(). | |
| 1435 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1436 // event posting can block so refetch oop if we were passed a jobj | |
| 1437 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1438 } | |
| 1439 return obj; | |
| 1440 } | |
| 1441 | |
| 1442 oop JvmtiExport::jni_GetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
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1443 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1444 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1445 // At least one field access watch is set so we have more work | |
| 1446 // to do. This wrapper is used by "quick" entry points that don't | |
| 1447 // allow us to create handles in post_field_access_by_jni(). We | |
| 1448 // override that with a ResetNoHandleMark. | |
| 1449 ResetNoHandleMark rnhm; | |
| 1450 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1451 // event posting can block so refetch oop if we were passed a jobj | |
| 1452 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1453 } | |
| 1454 return obj; | |
| 1455 } | |
| 1456 | |
| 1457 void JvmtiExport::post_field_access_by_jni(JavaThread *thread, oop obj, | |
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1458 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1459 // We must be called with a Java context in order to provide reasonable |
| 1460 // values for the klazz, method, and location fields. The callers of this | |
| 1461 // function don't make the call unless there is a Java context. | |
| 1462 assert(thread->has_last_Java_frame(), "must be called with a Java context"); | |
| 1463 | |
| 1464 ResourceMark rm; | |
| 1465 fieldDescriptor fd; | |
| 1466 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1467 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1468 assert(valid_fieldID == true,"post_field_access_by_jni called with invalid fieldID"); | |
| 1469 if (!valid_fieldID) return; | |
| 1470 // field accesses are not watched so bail | |
| 1471 if (!fd.is_field_access_watched()) return; | |
| 1472 | |
| 1473 HandleMark hm(thread); | |
| 1474 KlassHandle h_klass(thread, klass); | |
| 1475 Handle h_obj; | |
| 1476 if (!is_static) { | |
| 1477 // non-static field accessors have an object, but we need a handle | |
| 1478 assert(obj != NULL, "non-static needs an object"); | |
| 1479 h_obj = Handle(thread, obj); | |
| 1480 } | |
| 1481 post_field_access(thread, | |
| 1482 thread->last_frame().interpreter_frame_method(), | |
| 1483 thread->last_frame().interpreter_frame_bcp(), | |
| 1484 h_klass, h_obj, fieldID); | |
| 1485 } | |
| 1486 | |
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1487 void JvmtiExport::post_field_access(JavaThread *thread, Method* method, |
| 0 | 1488 address location, KlassHandle field_klass, Handle object, jfieldID field) { |
| 1489 | |
| 1490 HandleMark hm(thread); | |
| 1491 methodHandle mh(thread, method); | |
| 1492 | |
| 1493 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1494 if (state == NULL) { | |
| 1495 return; | |
| 1496 } | |
| 1497 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Trg Field Access event triggered", | |
| 1498 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1499 JvmtiEnvThreadStateIterator it(state); | |
| 1500 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1501 if (ets->is_enabled(JVMTI_EVENT_FIELD_ACCESS)) { | |
| 1502 EVT_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Evt Field Access event sent %s.%s @ %d", | |
| 1503 JvmtiTrace::safe_get_thread_name(thread), | |
| 1504 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1505 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1506 location - mh()->code_base() )); | |
| 1507 | |
| 1508 JvmtiEnv *env = ets->get_env(); | |
| 1509 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1510 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1511 jobject field_jobject = jem.to_jobject(object()); | |
| 1512 JvmtiJavaThreadEventTransition jet(thread); | |
| 1513 jvmtiEventFieldAccess callback = env->callbacks()->FieldAccess; | |
| 1514 if (callback != NULL) { | |
| 1515 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1516 jem.jni_methodID(), jem.location(), | |
| 1517 field_jclass, field_jobject, field); | |
| 1518 } | |
| 1519 } | |
| 1520 } | |
| 1521 } | |
| 1522 | |
| 1523 oop JvmtiExport::jni_SetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1524 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1525 char sig_type, jvalue *value) { |
| 1526 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1527 // At least one field modification watch is set so we have more work | |
| 1528 // to do. This wrapper is used by entry points that allow us | |
| 1529 // to create handles in post_field_modification_by_jni(). | |
| 1530 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1531 // event posting can block so refetch oop if we were passed a jobj | |
| 1532 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1533 } | |
| 1534 return obj; | |
| 1535 } | |
| 1536 | |
| 1537 oop JvmtiExport::jni_SetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
|
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1538 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1539 char sig_type, jvalue *value) { |
| 1540 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1541 // At least one field modification watch is set so we have more work | |
| 1542 // to do. This wrapper is used by "quick" entry points that don't | |
| 1543 // allow us to create handles in post_field_modification_by_jni(). We | |
| 1544 // override that with a ResetNoHandleMark. | |
| 1545 ResetNoHandleMark rnhm; | |
| 1546 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1547 // event posting can block so refetch oop if we were passed a jobj | |
| 1548 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1549 } | |
| 1550 return obj; | |
| 1551 } | |
| 1552 | |
| 1553 void JvmtiExport::post_field_modification_by_jni(JavaThread *thread, oop obj, | |
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1554 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1555 char sig_type, jvalue *value) { |
| 1556 // We must be called with a Java context in order to provide reasonable | |
| 1557 // values for the klazz, method, and location fields. The callers of this | |
| 1558 // function don't make the call unless there is a Java context. | |
| 1559 assert(thread->has_last_Java_frame(), "must be called with Java context"); | |
| 1560 | |
| 1561 ResourceMark rm; | |
| 1562 fieldDescriptor fd; | |
| 1563 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1564 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1565 assert(valid_fieldID == true,"post_field_modification_by_jni called with invalid fieldID"); | |
| 1566 if (!valid_fieldID) return; | |
| 1567 // field modifications are not watched so bail | |
| 1568 if (!fd.is_field_modification_watched()) return; | |
| 1569 | |
| 1570 HandleMark hm(thread); | |
| 1571 | |
| 1572 Handle h_obj; | |
| 1573 if (!is_static) { | |
| 1574 // non-static field accessors have an object, but we need a handle | |
| 1575 assert(obj != NULL, "non-static needs an object"); | |
| 1576 h_obj = Handle(thread, obj); | |
| 1577 } | |
| 1578 KlassHandle h_klass(thread, klass); | |
| 1579 post_field_modification(thread, | |
| 1580 thread->last_frame().interpreter_frame_method(), | |
| 1581 thread->last_frame().interpreter_frame_bcp(), | |
| 1582 h_klass, h_obj, fieldID, sig_type, value); | |
| 1583 } | |
| 1584 | |
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1585 void JvmtiExport::post_raw_field_modification(JavaThread *thread, Method* method, |
| 0 | 1586 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1587 char sig_type, jvalue *value) { | |
| 1588 | |
| 1589 if (sig_type == 'I' || sig_type == 'Z' || sig_type == 'C' || sig_type == 'S') { | |
| 1590 // 'I' instructions are used for byte, char, short and int. | |
| 1591 // determine which it really is, and convert | |
| 1592 fieldDescriptor fd; | |
| 1593 bool found = JvmtiEnv::get_field_descriptor(field_klass(), field, &fd); | |
| 1594 // should be found (if not, leave as is) | |
| 1595 if (found) { | |
| 1596 jint ival = value->i; | |
| 1597 // convert value from int to appropriate type | |
| 1598 switch (fd.field_type()) { | |
| 1599 case T_BOOLEAN: | |
| 1600 sig_type = 'Z'; | |
| 1601 value->i = 0; // clear it | |
| 1602 value->z = (jboolean)ival; | |
| 1603 break; | |
| 1604 case T_BYTE: | |
| 1605 sig_type = 'B'; | |
| 1606 value->i = 0; // clear it | |
| 1607 value->b = (jbyte)ival; | |
| 1608 break; | |
| 1609 case T_CHAR: | |
| 1610 sig_type = 'C'; | |
| 1611 value->i = 0; // clear it | |
| 1612 value->c = (jchar)ival; | |
| 1613 break; | |
| 1614 case T_SHORT: | |
| 1615 sig_type = 'S'; | |
| 1616 value->i = 0; // clear it | |
| 1617 value->s = (jshort)ival; | |
| 1618 break; | |
| 1619 case T_INT: | |
| 1620 // nothing to do | |
| 1621 break; | |
| 1622 default: | |
| 1623 // this is an integer instruction, should be one of above | |
| 1624 ShouldNotReachHere(); | |
| 1625 break; | |
| 1626 } | |
| 1627 } | |
| 1628 } | |
| 1629 | |
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1630 assert(sig_type != '[', "array should have sig_type == 'L'"); |
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1631 bool handle_created = false; |
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1632 |
| 0 | 1633 // convert oop to JNI handle. |
|
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1634 if (sig_type == 'L') { |
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1635 handle_created = true; |
| 0 | 1636 value->l = (jobject)JNIHandles::make_local(thread, (oop)value->l); |
| 1637 } | |
| 1638 | |
| 1639 post_field_modification(thread, method, location, field_klass, object, field, sig_type, value); | |
| 1640 | |
| 1641 // Destroy the JNI handle allocated above. | |
|
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1642 if (handle_created) { |
| 0 | 1643 JNIHandles::destroy_local(value->l); |
| 1644 } | |
| 1645 } | |
| 1646 | |
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1647 void JvmtiExport::post_field_modification(JavaThread *thread, Method* method, |
| 0 | 1648 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1649 char sig_type, jvalue *value_ptr) { | |
| 1650 | |
| 1651 HandleMark hm(thread); | |
| 1652 methodHandle mh(thread, method); | |
| 1653 | |
| 1654 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1655 if (state == NULL) { | |
| 1656 return; | |
| 1657 } | |
| 1658 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1659 ("JVMTI [%s] Trg Field Modification event triggered", | |
| 1660 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1661 | |
| 1662 JvmtiEnvThreadStateIterator it(state); | |
| 1663 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1664 if (ets->is_enabled(JVMTI_EVENT_FIELD_MODIFICATION)) { | |
| 1665 EVT_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1666 ("JVMTI [%s] Evt Field Modification event sent %s.%s @ %d", | |
| 1667 JvmtiTrace::safe_get_thread_name(thread), | |
| 1668 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1669 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1670 location - mh()->code_base() )); | |
| 1671 | |
| 1672 JvmtiEnv *env = ets->get_env(); | |
| 1673 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1674 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1675 jobject field_jobject = jem.to_jobject(object()); | |
| 1676 JvmtiJavaThreadEventTransition jet(thread); | |
| 1677 jvmtiEventFieldModification callback = env->callbacks()->FieldModification; | |
| 1678 if (callback != NULL) { | |
| 1679 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1680 jem.jni_methodID(), jem.location(), | |
| 1681 field_jclass, field_jobject, field, sig_type, *value_ptr); | |
| 1682 } | |
| 1683 } | |
| 1684 } | |
| 1685 } | |
| 1686 | |
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1687 void JvmtiExport::post_native_method_bind(Method* method, address* function_ptr) { |
| 0 | 1688 JavaThread* thread = JavaThread::current(); |
| 1689 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1690 | |
| 1691 HandleMark hm(thread); | |
| 1692 methodHandle mh(thread, method); | |
| 1693 | |
| 1694 EVT_TRIG_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Trg Native Method Bind event triggered", | |
| 1695 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1696 | |
| 1697 if (JvmtiEventController::is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1698 JvmtiEnvIterator it; | |
| 1699 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1700 if (env->is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1701 EVT_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Evt Native Method Bind event sent", | |
| 1702 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1703 | |
| 1704 JvmtiMethodEventMark jem(thread, mh); | |
| 1705 JvmtiJavaThreadEventTransition jet(thread); | |
| 1706 JNIEnv* jni_env = JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL? NULL : jem.jni_env(); | |
| 1707 jvmtiEventNativeMethodBind callback = env->callbacks()->NativeMethodBind; | |
| 1708 if (callback != NULL) { | |
| 1709 (*callback)(env->jvmti_external(), jni_env, jem.jni_thread(), | |
| 1710 jem.jni_methodID(), (void*)(*function_ptr), (void**)function_ptr); | |
| 1711 } | |
| 1712 } | |
| 1713 } | |
| 1714 } | |
| 1715 } | |
| 1716 | |
|
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1717 // Returns a record containing inlining information for the given nmethod |
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1718 jvmtiCompiledMethodLoadInlineRecord* create_inline_record(nmethod* nm) { |
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1719 jint numstackframes = 0; |
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1720 jvmtiCompiledMethodLoadInlineRecord* record = (jvmtiCompiledMethodLoadInlineRecord*)NEW_RESOURCE_OBJ(jvmtiCompiledMethodLoadInlineRecord); |
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1721 record->header.kind = JVMTI_CMLR_INLINE_INFO; |
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1722 record->header.next = NULL; |
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1723 record->header.majorinfoversion = JVMTI_CMLR_MAJOR_VERSION_1; |
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1724 record->header.minorinfoversion = JVMTI_CMLR_MINOR_VERSION_0; |
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1725 record->numpcs = 0; |
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1726 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1727 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1728 record->numpcs++; |
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1729 } |
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1730 record->pcinfo = (PCStackInfo*)(NEW_RESOURCE_ARRAY(PCStackInfo, record->numpcs)); |
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1731 int scope = 0; |
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1732 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1733 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1734 void* pc_address = (void*)p->real_pc(nm); |
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1735 assert(pc_address != NULL, "pc_address must be non-null"); |
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1736 record->pcinfo[scope].pc = pc_address; |
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1737 numstackframes=0; |
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1738 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1739 numstackframes++; |
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1740 } |
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1741 assert(numstackframes != 0, "numstackframes must be nonzero."); |
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1742 record->pcinfo[scope].methods = (jmethodID *)NEW_RESOURCE_ARRAY(jmethodID, numstackframes); |
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1743 record->pcinfo[scope].bcis = (jint *)NEW_RESOURCE_ARRAY(jint, numstackframes); |
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1744 record->pcinfo[scope].numstackframes = numstackframes; |
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1745 int stackframe = 0; |
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1746 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1747 // 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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1748 assert(sd->method() != NULL, "sd->method() cannot be null."); |
|
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1749 record->pcinfo[scope].methods[stackframe] = sd->method()->jmethod_id(); |
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1750 record->pcinfo[scope].bcis[stackframe] = sd->bci(); |
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1751 stackframe++; |
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1752 } |
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1753 scope++; |
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1754 } |
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1755 return record; |
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1756 } |
| 0 | 1757 |
| 1758 void JvmtiExport::post_compiled_method_load(nmethod *nm) { | |
| 1759 JavaThread* thread = JavaThread::current(); | |
| 1760 | |
| 1761 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1762 ("JVMTI [%s] method compile load event triggered", | |
| 1763 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1764 | |
| 1765 JvmtiEnvIterator it; | |
| 1766 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1767 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1768 | |
| 1769 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1770 ("JVMTI [%s] class compile method load event sent %s.%s ", | |
| 1771 JvmtiTrace::safe_get_thread_name(thread), | |
| 1772 (nm->method() == NULL) ? "NULL" : nm->method()->klass_name()->as_C_string(), | |
| 1773 (nm->method() == NULL) ? "NULL" : nm->method()->name()->as_C_string())); | |
| 1774 ResourceMark rm(thread); | |
|
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1775 HandleMark hm(thread); |
|
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1776 |
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1777 // Add inlining information |
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1778 jvmtiCompiledMethodLoadInlineRecord* inlinerecord = create_inline_record(nm); |
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1779 // Pass inlining information through the void pointer |
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1780 JvmtiCompiledMethodLoadEventMark jem(thread, nm, inlinerecord); |
| 0 | 1781 JvmtiJavaThreadEventTransition jet(thread); |
| 1782 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1783 if (callback != NULL) { | |
| 1784 (*callback)(env->jvmti_external(), jem.jni_methodID(), | |
| 1785 jem.code_size(), jem.code_data(), jem.map_length(), | |
| 1786 jem.map(), jem.compile_info()); | |
| 1787 } | |
| 1788 } | |
| 1789 } | |
| 1790 } | |
| 1791 | |
| 1792 | |
| 1793 // post a COMPILED_METHOD_LOAD event for a given environment | |
| 1794 void JvmtiExport::post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length, | |
| 1795 const void *code_begin, const jint map_length, | |
| 1796 const jvmtiAddrLocationMap* map) | |
| 1797 { | |
| 1798 JavaThread* thread = JavaThread::current(); | |
| 1799 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1800 ("JVMTI [%s] method compile load event triggered (by GenerateEvents)", | |
| 1801 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1802 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1803 | |
| 1804 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1805 ("JVMTI [%s] class compile method load event sent (by GenerateEvents), jmethodID=" PTR_FORMAT, | |
| 1806 JvmtiTrace::safe_get_thread_name(thread), method)); | |
| 1807 | |
| 1808 JvmtiEventMark jem(thread); | |
| 1809 JvmtiJavaThreadEventTransition jet(thread); | |
| 1810 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1811 if (callback != NULL) { | |
| 1812 (*callback)(env->jvmti_external(), method, | |
| 1813 length, code_begin, map_length, | |
| 1814 map, NULL); | |
| 1815 } | |
| 1816 } | |
| 1817 } | |
| 1818 | |
| 1819 void JvmtiExport::post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) { | |
|
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1820 assert(name != NULL && name[0] != '\0', "sanity check"); |
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1821 |
| 0 | 1822 JavaThread* thread = JavaThread::current(); |
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1823 // In theory everyone coming thru here is in_vm but we need to be certain |
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1824 // because a callee will do a vm->native transition |
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1825 ThreadInVMfromUnknown __tiv; |
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1826 |
| 0 | 1827 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, |
| 1828 ("JVMTI [%s] method dynamic code generated event triggered", | |
| 1829 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1830 JvmtiEnvIterator it; | |
| 1831 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1832 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1833 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1834 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1835 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1836 JvmtiEventMark jem(thread); | |
| 1837 JvmtiJavaThreadEventTransition jet(thread); | |
| 1838 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1839 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1840 if (callback != NULL) { | |
| 1841 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1842 } | |
| 1843 } | |
| 1844 } | |
| 1845 } | |
| 1846 | |
| 1847 void JvmtiExport::post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) { | |
| 1848 jvmtiPhase phase = JvmtiEnv::get_phase(); | |
| 1849 if (phase == JVMTI_PHASE_PRIMORDIAL || phase == JVMTI_PHASE_START) { | |
| 1850 post_dynamic_code_generated_internal(name, code_begin, code_end); | |
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1851 } else { |
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1852 // It may not be safe to post the event from this thread. Defer all |
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1853 // postings to the service thread so that it can perform them in a safe |
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1854 // context and in-order. |
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1855 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1856 JvmtiDeferredEvent event = JvmtiDeferredEvent::dynamic_code_generated_event( |
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1857 name, code_begin, code_end); |
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1858 JvmtiDeferredEventQueue::enqueue(event); |
| 0 | 1859 } |
| 1860 } | |
| 1861 | |
| 1862 | |
| 1863 // post a DYNAMIC_CODE_GENERATED event for a given environment | |
| 1864 // used by GenerateEvents | |
| 1865 void JvmtiExport::post_dynamic_code_generated(JvmtiEnv* env, const char *name, | |
| 1866 const void *code_begin, const void *code_end) | |
| 1867 { | |
| 1868 JavaThread* thread = JavaThread::current(); | |
| 1869 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1870 ("JVMTI [%s] dynamic code generated event triggered (by GenerateEvents)", | |
| 1871 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1872 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1873 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1874 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1875 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1876 JvmtiEventMark jem(thread); | |
| 1877 JvmtiJavaThreadEventTransition jet(thread); | |
| 1878 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1879 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1880 if (callback != NULL) { | |
| 1881 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1882 } | |
| 1883 } | |
| 1884 } | |
| 1885 | |
| 1886 // post a DynamicCodeGenerated event while holding locks in the VM. | |
| 1887 void JvmtiExport::post_dynamic_code_generated_while_holding_locks(const char* name, | |
| 1888 address code_begin, address code_end) | |
| 1889 { | |
| 1890 // register the stub with the current dynamic code event collector | |
| 1891 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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1892 // state can only be NULL if the current thread is exiting which |
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1893 // should not happen since we're trying to post an event |
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1894 guarantee(state != NULL, "attempt to register stub via an exiting thread"); |
| 0 | 1895 JvmtiDynamicCodeEventCollector* collector = state->get_dynamic_code_event_collector(); |
| 1896 guarantee(collector != NULL, "attempt to register stub without event collector"); | |
| 1897 collector->register_stub(name, code_begin, code_end); | |
| 1898 } | |
| 1899 | |
| 1900 // Collect all the vm internally allocated objects which are visible to java world | |
| 1901 void JvmtiExport::record_vm_internal_object_allocation(oop obj) { | |
| 1902 Thread* thread = ThreadLocalStorage::thread(); | |
| 1903 if (thread != NULL && thread->is_Java_thread()) { | |
| 1904 // Can not take safepoint here. | |
| 1905 No_Safepoint_Verifier no_sfpt; | |
| 1906 // Can not take safepoint here so can not use state_for to get | |
| 1907 // jvmti thread state. | |
| 1908 JvmtiThreadState *state = ((JavaThread*)thread)->jvmti_thread_state(); | |
| 1909 if (state != NULL ) { | |
| 1910 // state is non NULL when VMObjectAllocEventCollector is enabled. | |
| 1911 JvmtiVMObjectAllocEventCollector *collector; | |
| 1912 collector = state->get_vm_object_alloc_event_collector(); | |
| 1913 if (collector != NULL && collector->is_enabled()) { | |
| 1914 // Don't record classes as these will be notified via the ClassLoad | |
| 1915 // event. | |
| 1142 | 1916 if (obj->klass() != SystemDictionary::Class_klass()) { |
| 0 | 1917 collector->record_allocation(obj); |
| 1918 } | |
| 1919 } | |
| 1920 } | |
| 1921 } | |
| 1922 } | |
| 1923 | |
| 1924 void JvmtiExport::post_garbage_collection_finish() { | |
| 1925 Thread *thread = Thread::current(); // this event is posted from VM-Thread. | |
| 1926 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1927 ("JVMTI [%s] garbage collection finish event triggered", | |
| 1928 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1929 JvmtiEnvIterator it; | |
| 1930 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1931 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH)) { | |
| 1932 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1933 ("JVMTI [%s] garbage collection finish event sent ", | |
| 1934 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1935 JvmtiThreadEventTransition jet(thread); | |
| 1936 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1937 jvmtiEventGarbageCollectionFinish callback = env->callbacks()->GarbageCollectionFinish; | |
| 1938 if (callback != NULL) { | |
| 1939 (*callback)(env->jvmti_external()); | |
| 1940 } | |
| 1941 } | |
| 1942 } | |
| 1943 } | |
| 1944 | |
| 1945 void JvmtiExport::post_garbage_collection_start() { | |
| 1946 Thread* thread = Thread::current(); // this event is posted from vm-thread. | |
| 1947 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1948 ("JVMTI [%s] garbage collection start event triggered", | |
| 1949 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1950 JvmtiEnvIterator it; | |
| 1951 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1952 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_START)) { | |
| 1953 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1954 ("JVMTI [%s] garbage collection start event sent ", | |
| 1955 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1956 JvmtiThreadEventTransition jet(thread); | |
| 1957 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1958 jvmtiEventGarbageCollectionStart callback = env->callbacks()->GarbageCollectionStart; | |
| 1959 if (callback != NULL) { | |
| 1960 (*callback)(env->jvmti_external()); | |
| 1961 } | |
| 1962 } | |
| 1963 } | |
| 1964 } | |
| 1965 | |
| 1966 void JvmtiExport::post_data_dump() { | |
| 1967 Thread *thread = Thread::current(); | |
| 1968 EVT_TRIG_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1969 ("JVMTI [%s] data dump request event triggered", | |
| 1970 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1971 JvmtiEnvIterator it; | |
| 1972 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1973 if (env->is_enabled(JVMTI_EVENT_DATA_DUMP_REQUEST)) { | |
| 1974 EVT_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1975 ("JVMTI [%s] data dump request event sent ", | |
| 1976 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1977 JvmtiThreadEventTransition jet(thread); | |
| 1978 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1979 jvmtiEventDataDumpRequest callback = env->callbacks()->DataDumpRequest; | |
| 1980 if (callback != NULL) { | |
| 1981 (*callback)(env->jvmti_external()); | |
| 1982 } | |
| 1983 } | |
| 1984 } | |
| 1985 } | |
| 1986 | |
| 1987 void JvmtiExport::post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 1988 oop object = (oop)obj_mntr->object(); | |
| 1989 if (!ServiceUtil::visible_oop(object)) { | |
| 1990 // Ignore monitor contended enter for vm internal object. | |
| 1991 return; | |
| 1992 } | |
| 1993 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1994 if (state == NULL) { | |
| 1995 return; | |
| 1996 } | |
| 1997 | |
| 1998 HandleMark hm(thread); | |
| 1999 Handle h(thread, object); | |
| 2000 | |
| 2001 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 2002 ("JVMTI [%s] montior contended enter event triggered", | |
| 2003 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2004 | |
| 2005 JvmtiEnvThreadStateIterator it(state); | |
| 2006 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2007 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTER)) { | |
| 2008 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 2009 ("JVMTI [%s] monitor contended enter event sent", | |
| 2010 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2011 JvmtiMonitorEventMark jem(thread, h()); | |
| 2012 JvmtiEnv *env = ets->get_env(); | |
| 2013 JvmtiThreadEventTransition jet(thread); | |
| 2014 jvmtiEventMonitorContendedEnter callback = env->callbacks()->MonitorContendedEnter; | |
| 2015 if (callback != NULL) { | |
| 2016 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2017 } | |
| 2018 } | |
| 2019 } | |
| 2020 } | |
| 2021 | |
| 2022 void JvmtiExport::post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 2023 oop object = (oop)obj_mntr->object(); | |
| 2024 if (!ServiceUtil::visible_oop(object)) { | |
| 2025 // Ignore monitor contended entered for vm internal object. | |
| 2026 return; | |
| 2027 } | |
| 2028 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2029 if (state == NULL) { | |
| 2030 return; | |
| 2031 } | |
| 2032 | |
| 2033 HandleMark hm(thread); | |
| 2034 Handle h(thread, object); | |
| 2035 | |
| 2036 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2037 ("JVMTI [%s] montior contended entered event triggered", | |
| 2038 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2039 | |
| 2040 JvmtiEnvThreadStateIterator it(state); | |
| 2041 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2042 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED)) { | |
| 2043 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2044 ("JVMTI [%s] monitor contended enter event sent", | |
| 2045 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2046 JvmtiMonitorEventMark jem(thread, h()); | |
| 2047 JvmtiEnv *env = ets->get_env(); | |
| 2048 JvmtiThreadEventTransition jet(thread); | |
| 2049 jvmtiEventMonitorContendedEntered callback = env->callbacks()->MonitorContendedEntered; | |
| 2050 if (callback != NULL) { | |
| 2051 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2052 } | |
| 2053 } | |
| 2054 } | |
| 2055 } | |
| 2056 | |
| 2057 void JvmtiExport::post_monitor_wait(JavaThread *thread, oop object, | |
| 2058 jlong timeout) { | |
| 2059 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2060 if (state == NULL) { | |
| 2061 return; | |
| 2062 } | |
| 2063 | |
| 2064 HandleMark hm(thread); | |
| 2065 Handle h(thread, object); | |
| 2066 | |
| 2067 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2068 ("JVMTI [%s] montior wait event triggered", | |
| 2069 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2070 | |
| 2071 JvmtiEnvThreadStateIterator it(state); | |
| 2072 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2073 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAIT)) { | |
| 2074 EVT_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2075 ("JVMTI [%s] monitor wait event sent ", | |
| 2076 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2077 JvmtiMonitorEventMark jem(thread, h()); | |
| 2078 JvmtiEnv *env = ets->get_env(); | |
| 2079 JvmtiThreadEventTransition jet(thread); | |
| 2080 jvmtiEventMonitorWait callback = env->callbacks()->MonitorWait; | |
| 2081 if (callback != NULL) { | |
| 2082 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2083 jem.jni_object(), timeout); | |
| 2084 } | |
| 2085 } | |
| 2086 } | |
| 2087 } | |
| 2088 | |
| 2089 void JvmtiExport::post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) { | |
| 2090 oop object = (oop)obj_mntr->object(); | |
| 2091 if (!ServiceUtil::visible_oop(object)) { | |
| 2092 // Ignore monitor waited for vm internal object. | |
| 2093 return; | |
| 2094 } | |
| 2095 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2096 if (state == NULL) { | |
| 2097 return; | |
| 2098 } | |
| 2099 | |
| 2100 HandleMark hm(thread); | |
| 2101 Handle h(thread, object); | |
| 2102 | |
| 2103 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2104 ("JVMTI [%s] montior waited event triggered", | |
| 2105 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2106 | |
| 2107 JvmtiEnvThreadStateIterator it(state); | |
| 2108 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2109 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAITED)) { | |
| 2110 EVT_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2111 ("JVMTI [%s] monitor waited event sent ", | |
| 2112 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2113 JvmtiMonitorEventMark jem(thread, h()); | |
| 2114 JvmtiEnv *env = ets->get_env(); | |
| 2115 JvmtiThreadEventTransition jet(thread); | |
| 2116 jvmtiEventMonitorWaited callback = env->callbacks()->MonitorWaited; | |
| 2117 if (callback != NULL) { | |
| 2118 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2119 jem.jni_object(), timed_out); | |
| 2120 } | |
| 2121 } | |
| 2122 } | |
| 2123 } | |
| 2124 | |
| 2125 | |
| 2126 void JvmtiExport::post_vm_object_alloc(JavaThread *thread, oop object) { | |
| 2127 EVT_TRIG_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Trg vm object alloc triggered", | |
| 2128 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2129 if (object == NULL) { | |
| 2130 return; | |
| 2131 } | |
| 2132 HandleMark hm(thread); | |
| 2133 Handle h(thread, object); | |
| 2134 JvmtiEnvIterator it; | |
| 2135 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 2136 if (env->is_enabled(JVMTI_EVENT_VM_OBJECT_ALLOC)) { | |
| 2137 EVT_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Evt vmobject alloc sent %s", | |
| 2138 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 2139 object==NULL? "NULL" : java_lang_Class::as_Klass(object)->external_name())); |
| 0 | 2140 |
| 2141 JvmtiVMObjectAllocEventMark jem(thread, h()); | |
| 2142 JvmtiJavaThreadEventTransition jet(thread); | |
| 2143 jvmtiEventVMObjectAlloc callback = env->callbacks()->VMObjectAlloc; | |
| 2144 if (callback != NULL) { | |
| 2145 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2146 jem.jni_jobject(), jem.jni_class(), jem.size()); | |
| 2147 } | |
| 2148 } | |
| 2149 } | |
| 2150 } | |
| 2151 | |
| 2152 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2153 | |
| 2154 void JvmtiExport::cleanup_thread(JavaThread* thread) { | |
| 2155 assert(JavaThread::current() == thread, "thread is not current"); | |
|
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2156 MutexLocker mu(JvmtiThreadState_lock); |
| 0 | 2157 |
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2158 if (thread->jvmti_thread_state() != NULL) { |
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2159 // This has to happen after the thread state is removed, which is |
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2160 // why it is not in post_thread_end_event like its complement |
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2161 // Maybe both these functions should be rolled into the posts? |
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2162 JvmtiEventController::thread_ended(thread); |
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2163 } |
| 0 | 2164 } |
| 2165 | |
| 2166 void JvmtiExport::oops_do(OopClosure* f) { | |
| 2167 JvmtiCurrentBreakpoints::oops_do(f); | |
| 2168 JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(f); | |
| 2169 } | |
| 2170 | |
|
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2171 void JvmtiExport::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f) { |
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2172 JvmtiTagMap::weak_oops_do(is_alive, f); |
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2173 } |
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2174 |
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2175 void JvmtiExport::gc_epilogue() { |
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2176 JvmtiCurrentBreakpoints::gc_epilogue(); |
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2177 } |
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2178 |
| 0 | 2179 // Onload raw monitor transition. |
| 2180 void JvmtiExport::transition_pending_onload_raw_monitors() { | |
| 2181 JvmtiPendingMonitors::transition_raw_monitors(); | |
| 2182 } | |
| 2183 | |
| 2184 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2185 | |
| 2186 // type for the Agent_OnAttach entry point | |
| 2187 extern "C" { | |
| 2188 typedef jint (JNICALL *OnAttachEntry_t)(JavaVM*, char *, void *); | |
| 2189 } | |
| 2190 | |
| 2191 jint JvmtiExport::load_agent_library(AttachOperation* op, outputStream* st) { | |
| 2192 char ebuf[1024]; | |
| 2193 char buffer[JVM_MAXPATHLEN]; | |
|
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2194 void* library = NULL; |
| 0 | 2195 jint result = JNI_ERR; |
|
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2196 const char *on_attach_symbols[] = AGENT_ONATTACH_SYMBOLS; |
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2197 size_t num_symbol_entries = ARRAY_SIZE(on_attach_symbols); |
| 0 | 2198 |
| 2199 // get agent name and options | |
| 2200 const char* agent = op->arg(0); | |
| 2201 const char* absParam = op->arg(1); | |
| 2202 const char* options = op->arg(2); | |
| 2203 | |
| 2204 // The abs paramter should be "true" or "false" | |
| 2205 bool is_absolute_path = (absParam != NULL) && (strcmp(absParam,"true")==0); | |
| 2206 | |
|
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2207 // Initially marked as invalid. It will be set to valid if we can find the agent |
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2208 AgentLibrary *agent_lib = new AgentLibrary(agent, options, is_absolute_path, NULL); |
| 0 | 2209 |
|
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2210 // Check for statically linked in agent. If not found then if the path is |
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2211 // absolute we attempt to load the library. Otherwise we try to load it |
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2212 // from the standard dll directory. |
| 0 | 2213 |
|
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2214 if (!os::find_builtin_agent(agent_lib, on_attach_symbols, num_symbol_entries)) { |
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2215 if (is_absolute_path) { |
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2216 library = os::dll_load(agent, ebuf, sizeof ebuf); |
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2217 } else { |
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2218 // Try to load the agent from the standard dll directory |
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2219 if (os::dll_build_name(buffer, sizeof(buffer), Arguments::get_dll_dir(), |
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2220 agent)) { |
|
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2221 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
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2222 } |
|
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2223 if (library == NULL) { |
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2224 // not found - try local path |
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2225 char ns[1] = {0}; |
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2226 if (os::dll_build_name(buffer, sizeof(buffer), ns, agent)) { |
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2227 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
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2228 } |
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|
2229 } |
| 0 | 2230 } |
|
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2231 if (library != NULL) { |
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2232 agent_lib->set_os_lib(library); |
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2233 agent_lib->set_valid(); |
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|
2234 } |
| 0 | 2235 } |
| 2236 // If the library was loaded then we attempt to invoke the Agent_OnAttach | |
| 2237 // function | |
|
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2238 if (agent_lib->valid()) { |
| 0 | 2239 // Lookup the Agent_OnAttach function |
| 2240 OnAttachEntry_t on_attach_entry = NULL; | |
|
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2241 on_attach_entry = CAST_TO_FN_PTR(OnAttachEntry_t, |
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2242 os::find_agent_function(agent_lib, false, on_attach_symbols, num_symbol_entries)); |
| 0 | 2243 if (on_attach_entry == NULL) { |
| 2244 // Agent_OnAttach missing - unload library | |
|
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2245 if (!agent_lib->is_static_lib()) { |
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2246 os::dll_unload(library); |
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2247 } |
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|
2248 delete agent_lib; |
| 0 | 2249 } else { |
| 2250 // Invoke the Agent_OnAttach function | |
| 2251 JavaThread* THREAD = JavaThread::current(); | |
| 2252 { | |
| 2253 extern struct JavaVM_ main_vm; | |
| 2254 JvmtiThreadEventMark jem(THREAD); | |
| 2255 JvmtiJavaThreadEventTransition jet(THREAD); | |
| 2256 | |
| 2257 result = (*on_attach_entry)(&main_vm, (char*)options, NULL); | |
| 2258 } | |
| 2259 | |
| 2260 // Agent_OnAttach may have used JNI | |
| 2261 if (HAS_PENDING_EXCEPTION) { | |
| 2262 CLEAR_PENDING_EXCEPTION; | |
| 2263 } | |
| 2264 | |
| 2265 // If OnAttach returns JNI_OK then we add it to the list of | |
| 2266 // agent libraries so that we can call Agent_OnUnload later. | |
| 2267 if (result == JNI_OK) { | |
|
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2268 Arguments::add_loaded_agent(agent_lib); |
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|
2269 } else { |
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|
2270 delete agent_lib; |
| 0 | 2271 } |
| 2272 | |
| 2273 // Agent_OnAttach executed so completion status is JNI_OK | |
| 2274 st->print_cr("%d", result); | |
| 2275 result = JNI_OK; | |
| 2276 } | |
| 2277 } | |
| 2278 return result; | |
| 2279 } | |
| 2280 | |
| 2281 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2282 | |
| 2283 // Setup current current thread for event collection. | |
| 2284 void JvmtiEventCollector::setup_jvmti_thread_state() { | |
| 2285 // set this event collector to be the current one. | |
| 2286 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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2287 // state can only be NULL if the current thread is exiting which |
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2288 // should not happen since we're trying to configure for event collection |
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|
2289 guarantee(state != NULL, "exiting thread called setup_jvmti_thread_state"); |
| 0 | 2290 if (is_vm_object_alloc_event()) { |
| 2291 _prev = state->get_vm_object_alloc_event_collector(); | |
| 2292 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)this); | |
| 2293 } else if (is_dynamic_code_event()) { | |
| 2294 _prev = state->get_dynamic_code_event_collector(); | |
| 2295 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)this); | |
| 2296 } | |
| 2297 } | |
| 2298 | |
| 2299 // Unset current event collection in this thread and reset it with previous | |
| 2300 // collector. | |
| 2301 void JvmtiEventCollector::unset_jvmti_thread_state() { | |
| 2302 JvmtiThreadState* state = JavaThread::current()->jvmti_thread_state(); | |
| 2303 if (state != NULL) { | |
| 2304 // restore the previous event collector (if any) | |
| 2305 if (is_vm_object_alloc_event()) { | |
| 2306 if (state->get_vm_object_alloc_event_collector() == this) { | |
| 2307 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)_prev); | |
| 2308 } else { | |
| 2309 // this thread's jvmti state was created during the scope of | |
| 2310 // the event collector. | |
| 2311 } | |
| 2312 } else { | |
| 2313 if (is_dynamic_code_event()) { | |
| 2314 if (state->get_dynamic_code_event_collector() == this) { | |
| 2315 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)_prev); | |
| 2316 } else { | |
| 2317 // this thread's jvmti state was created during the scope of | |
| 2318 // the event collector. | |
| 2319 } | |
| 2320 } | |
| 2321 } | |
| 2322 } | |
| 2323 } | |
| 2324 | |
| 2325 // create the dynamic code event collector | |
| 2326 JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(NULL) { | |
| 2327 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 2328 setup_jvmti_thread_state(); | |
| 2329 } | |
| 2330 } | |
| 2331 | |
| 2332 // iterate over any code blob descriptors collected and post a | |
| 2333 // DYNAMIC_CODE_GENERATED event to the profiler. | |
| 2334 JvmtiDynamicCodeEventCollector::~JvmtiDynamicCodeEventCollector() { | |
| 2335 assert(!JavaThread::current()->owns_locks(), "all locks must be released to post deferred events"); | |
| 2336 // iterate over any code blob descriptors that we collected | |
| 2337 if (_code_blobs != NULL) { | |
| 2338 for (int i=0; i<_code_blobs->length(); i++) { | |
| 2339 JvmtiCodeBlobDesc* blob = _code_blobs->at(i); | |
| 2340 JvmtiExport::post_dynamic_code_generated(blob->name(), blob->code_begin(), blob->code_end()); | |
| 2341 FreeHeap(blob); | |
| 2342 } | |
| 2343 delete _code_blobs; | |
| 2344 } | |
| 2345 unset_jvmti_thread_state(); | |
| 2346 } | |
| 2347 | |
| 2348 // register a stub | |
| 2349 void JvmtiDynamicCodeEventCollector::register_stub(const char* name, address start, address end) { | |
| 2350 if (_code_blobs == NULL) { | |
| 6197 | 2351 _code_blobs = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<JvmtiCodeBlobDesc*>(1,true); |
| 0 | 2352 } |
| 2353 _code_blobs->append(new JvmtiCodeBlobDesc(name, start, end)); | |
| 2354 } | |
| 2355 | |
| 2356 // Setup current thread to record vm allocated objects. | |
| 2357 JvmtiVMObjectAllocEventCollector::JvmtiVMObjectAllocEventCollector() : _allocated(NULL) { | |
| 2358 if (JvmtiExport::should_post_vm_object_alloc()) { | |
| 2359 _enable = true; | |
| 2360 setup_jvmti_thread_state(); | |
| 2361 } else { | |
| 2362 _enable = false; | |
| 2363 } | |
| 2364 } | |
| 2365 | |
| 2366 // Post vm_object_alloc event for vm allocated objects visible to java | |
| 2367 // world. | |
| 2368 JvmtiVMObjectAllocEventCollector::~JvmtiVMObjectAllocEventCollector() { | |
| 2369 if (_allocated != NULL) { | |
| 2370 set_enabled(false); | |
| 2371 for (int i = 0; i < _allocated->length(); i++) { | |
| 2372 oop obj = _allocated->at(i); | |
| 2373 if (ServiceUtil::visible_oop(obj)) { | |
| 2374 JvmtiExport::post_vm_object_alloc(JavaThread::current(), obj); | |
| 2375 } | |
| 2376 } | |
| 2377 delete _allocated; | |
| 2378 } | |
| 2379 unset_jvmti_thread_state(); | |
| 2380 } | |
| 2381 | |
| 2382 void JvmtiVMObjectAllocEventCollector::record_allocation(oop obj) { | |
| 2383 assert(is_enabled(), "VM object alloc event collector is not enabled"); | |
| 2384 if (_allocated == NULL) { | |
| 6197 | 2385 _allocated = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<oop>(1, true); |
| 0 | 2386 } |
| 2387 _allocated->push(obj); | |
| 2388 } | |
| 2389 | |
| 2390 // GC support. | |
| 2391 void JvmtiVMObjectAllocEventCollector::oops_do(OopClosure* f) { | |
| 2392 if (_allocated != NULL) { | |
| 2393 for(int i=_allocated->length() - 1; i >= 0; i--) { | |
| 2394 if (_allocated->at(i) != NULL) { | |
| 2395 f->do_oop(_allocated->adr_at(i)); | |
| 2396 } | |
| 2397 } | |
| 2398 } | |
| 2399 } | |
| 2400 | |
| 2401 void JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(OopClosure* f) { | |
| 2402 // no-op if jvmti not enabled | |
| 2403 if (!JvmtiEnv::environments_might_exist()) { | |
| 2404 return; | |
| 2405 } | |
| 2406 | |
| 2407 // Runs at safepoint. So no need to acquire Threads_lock. | |
| 2408 for (JavaThread *jthr = Threads::first(); jthr != NULL; jthr = jthr->next()) { | |
| 2409 JvmtiThreadState *state = jthr->jvmti_thread_state(); | |
| 2410 if (state != NULL) { | |
| 2411 JvmtiVMObjectAllocEventCollector *collector; | |
| 2412 collector = state->get_vm_object_alloc_event_collector(); | |
| 2413 while (collector != NULL) { | |
| 2414 collector->oops_do(f); | |
| 2415 collector = (JvmtiVMObjectAllocEventCollector *)collector->get_prev(); | |
| 2416 } | |
| 2417 } | |
| 2418 } | |
| 2419 } | |
| 2420 | |
| 2421 | |
| 2422 // Disable collection of VMObjectAlloc events | |
| 2423 NoJvmtiVMObjectAllocMark::NoJvmtiVMObjectAllocMark() : _collector(NULL) { | |
| 2424 // a no-op if VMObjectAlloc event is not enabled | |
| 2425 if (!JvmtiExport::should_post_vm_object_alloc()) { | |
| 2426 return; | |
| 2427 } | |
| 2428 Thread* thread = ThreadLocalStorage::thread(); | |
| 2429 if (thread != NULL && thread->is_Java_thread()) { | |
| 2430 JavaThread* current_thread = (JavaThread*)thread; | |
| 2431 JvmtiThreadState *state = current_thread->jvmti_thread_state(); | |
| 2432 if (state != NULL) { | |
| 2433 JvmtiVMObjectAllocEventCollector *collector; | |
| 2434 collector = state->get_vm_object_alloc_event_collector(); | |
| 2435 if (collector != NULL && collector->is_enabled()) { | |
| 2436 _collector = collector; | |
| 2437 _collector->set_enabled(false); | |
| 2438 } | |
| 2439 } | |
| 2440 } | |
| 2441 } | |
| 2442 | |
| 2443 // Re-Enable collection of VMObjectAlloc events (if previously enabled) | |
| 2444 NoJvmtiVMObjectAllocMark::~NoJvmtiVMObjectAllocMark() { | |
| 2445 if (was_enabled()) { | |
| 2446 _collector->set_enabled(true); | |
| 2447 } | |
| 2448 }; | |
| 2449 | |
|
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|
2450 JvmtiGCMarker::JvmtiGCMarker() { |
| 0 | 2451 // if there aren't any JVMTI environments then nothing to do |
| 2452 if (!JvmtiEnv::environments_might_exist()) { | |
| 2453 return; | |
| 2454 } | |
| 2455 | |
| 2456 if (JvmtiExport::should_post_garbage_collection_start()) { | |
| 2457 JvmtiExport::post_garbage_collection_start(); | |
| 2458 } | |
| 2459 | |
|
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2460 if (SafepointSynchronize::is_at_safepoint()) { |
|
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2461 // 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
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2462 JvmtiEnvBase::check_for_periodic_clean_up(); |
| 0 | 2463 } |
| 2464 } | |
| 2465 | |
| 2466 JvmtiGCMarker::~JvmtiGCMarker() { | |
| 2467 // if there aren't any JVMTI environments then nothing to do | |
| 2468 if (!JvmtiEnv::environments_might_exist()) { | |
| 2469 return; | |
| 2470 } | |
| 2471 | |
| 2472 // JVMTI notify gc finish | |
| 2473 if (JvmtiExport::should_post_garbage_collection_finish()) { | |
| 2474 JvmtiExport::post_garbage_collection_finish(); | |
| 2475 } | |
| 2476 } |