Mercurial > hg > graal-jvmci-8
annotate src/share/vm/prims/jvmtiExport.cpp @ 23961:0cdf9eb633c4
8159515: Improve indy validation
Reviewed-by: jrose, hseigel, vlivanov, bmoloden, ctornqvi, mschoene
| author | coleenp |
|---|---|
| date | Wed, 29 Jun 2016 11:52:27 -0400 |
| parents | d109bda16490 |
| children | f13e777eb255 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 23614 | 2 * Copyright (c) 2003, 2016, 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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782 } |
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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(); | |
| 23832 | 998 assert(((Thread *)real_thread)->is_ConcurrentGC_thread() || |
| 999 (real_thread->is_Java_thread() && prev_state == _thread_blocked), | |
| 1000 "should be ConcurrentGCThread or JavaThread at safepoint"); | |
| 0 | 1001 real_thread->set_thread_state(_thread_in_native); |
| 1002 | |
| 1003 jvmtiExtensionEvent callback = env->ext_callbacks()->ClassUnload; | |
| 1004 if (callback != NULL) { | |
| 1005 (*callback)(env->jvmti_external(), jni_env, jt, jk); | |
| 1006 } | |
| 1007 | |
| 1008 assert(real_thread->thread_state() == _thread_in_native, | |
| 1009 "JavaThread should be in native"); | |
| 1010 real_thread->set_thread_state(prev_state); | |
| 1011 | |
| 1012 JNIHandles::destroy_local(jk); | |
| 1013 JNIHandles::destroy_local(jt); | |
| 1014 } | |
| 1015 } | |
| 1016 } | |
| 1017 } | |
| 1018 | |
| 1019 | |
| 1020 void JvmtiExport::post_thread_start(JavaThread *thread) { | |
| 1021 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1022 | |
| 1023 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Trg Thread Start event triggered", | |
| 1024 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1025 | |
| 1026 // do JVMTI thread initialization (if needed) | |
| 1027 JvmtiEventController::thread_started(thread); | |
| 1028 | |
| 1029 // Do not post thread start event for hidden java thread. | |
| 1030 if (JvmtiEventController::is_enabled(JVMTI_EVENT_THREAD_START) && | |
| 1031 !thread->is_hidden_from_external_view()) { | |
| 1032 JvmtiEnvIterator it; | |
| 1033 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1034 if (env->is_enabled(JVMTI_EVENT_THREAD_START)) { | |
| 1035 EVT_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Evt Thread Start event sent", | |
| 1036 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1037 | |
| 1038 JvmtiThreadEventMark jem(thread); | |
| 1039 JvmtiJavaThreadEventTransition jet(thread); | |
| 1040 jvmtiEventThreadStart callback = env->callbacks()->ThreadStart; | |
| 1041 if (callback != NULL) { | |
| 1042 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1043 } | |
| 1044 } | |
| 1045 } | |
| 1046 } | |
| 1047 } | |
| 1048 | |
| 1049 | |
| 1050 void JvmtiExport::post_thread_end(JavaThread *thread) { | |
| 1051 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Trg Thread End event triggered", | |
| 1052 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1053 | |
| 1054 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1055 if (state == NULL) { | |
| 1056 return; | |
| 1057 } | |
| 1058 | |
| 1059 // Do not post thread end event for hidden java thread. | |
| 1060 if (state->is_enabled(JVMTI_EVENT_THREAD_END) && | |
| 1061 !thread->is_hidden_from_external_view()) { | |
| 1062 | |
| 1063 JvmtiEnvThreadStateIterator it(state); | |
| 1064 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1065 if (ets->is_enabled(JVMTI_EVENT_THREAD_END)) { | |
| 1066 EVT_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Evt Thread End event sent", | |
| 1067 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1068 | |
| 1069 JvmtiEnv *env = ets->get_env(); | |
| 1070 JvmtiThreadEventMark jem(thread); | |
| 1071 JvmtiJavaThreadEventTransition jet(thread); | |
| 1072 jvmtiEventThreadEnd callback = env->callbacks()->ThreadEnd; | |
| 1073 if (callback != NULL) { | |
| 1074 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1075 } | |
| 1076 } | |
| 1077 } | |
| 1078 } | |
| 1079 } | |
| 1080 | |
| 1081 void JvmtiExport::post_object_free(JvmtiEnv* env, jlong tag) { | |
| 1082 assert(SafepointSynchronize::is_at_safepoint(), "must be executed at safepoint"); | |
| 1083 assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE), "checking"); | |
| 1084 | |
| 1085 EVT_TRIG_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Trg Object Free triggered" )); | |
| 1086 EVT_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Evt Object Free sent")); | |
| 1087 | |
| 1088 jvmtiEventObjectFree callback = env->callbacks()->ObjectFree; | |
| 1089 if (callback != NULL) { | |
| 1090 (*callback)(env->jvmti_external(), tag); | |
| 1091 } | |
| 1092 } | |
| 1093 | |
| 1094 void JvmtiExport::post_resource_exhausted(jint resource_exhausted_flags, const char* description) { | |
| 1095 EVT_TRIG_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Trg resource exhausted event triggered" )); | |
| 1096 | |
| 1097 JvmtiEnvIterator it; | |
| 1098 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1099 if (env->is_enabled(JVMTI_EVENT_RESOURCE_EXHAUSTED)) { | |
| 1100 EVT_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Evt resource exhausted event sent" )); | |
| 1101 | |
| 1102 JavaThread *thread = JavaThread::current(); | |
| 1103 JvmtiThreadEventMark jem(thread); | |
| 1104 JvmtiJavaThreadEventTransition jet(thread); | |
| 1105 jvmtiEventResourceExhausted callback = env->callbacks()->ResourceExhausted; | |
| 1106 if (callback != NULL) { | |
| 1107 (*callback)(env->jvmti_external(), jem.jni_env(), | |
| 1108 resource_exhausted_flags, NULL, description); | |
| 1109 } | |
| 1110 } | |
| 1111 } | |
| 1112 } | |
| 1113 | |
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1114 void JvmtiExport::post_method_entry(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1115 HandleMark hm(thread); |
| 1116 methodHandle mh(thread, method); | |
| 1117 | |
| 1118 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Trg Method Entry triggered %s.%s", | |
| 1119 JvmtiTrace::safe_get_thread_name(thread), | |
| 1120 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1121 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1122 | |
| 1123 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 1124 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1125 // for any thread that actually wants method entry, interp_only_mode is set | |
| 1126 return; | |
| 1127 } | |
| 1128 | |
| 1129 state->incr_cur_stack_depth(); | |
| 1130 | |
| 1131 if (state->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1132 JvmtiEnvThreadStateIterator it(state); | |
| 1133 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1134 if (ets->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1135 EVT_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Evt Method Entry sent %s.%s", | |
| 1136 JvmtiTrace::safe_get_thread_name(thread), | |
| 1137 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1138 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1139 | |
| 1140 JvmtiEnv *env = ets->get_env(); | |
| 1141 JvmtiMethodEventMark jem(thread, mh); | |
| 1142 JvmtiJavaThreadEventTransition jet(thread); | |
| 1143 jvmtiEventMethodEntry callback = env->callbacks()->MethodEntry; | |
| 1144 if (callback != NULL) { | |
| 1145 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_methodID()); | |
| 1146 } | |
| 1147 } | |
| 1148 } | |
| 1149 } | |
| 1150 } | |
| 1151 | |
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1152 void JvmtiExport::post_method_exit(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1153 HandleMark hm(thread); |
| 1154 methodHandle mh(thread, method); | |
| 1155 | |
| 1156 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Trg Method Exit triggered %s.%s", | |
| 1157 JvmtiTrace::safe_get_thread_name(thread), | |
| 1158 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1159 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1160 | |
| 1161 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1162 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1163 // for any thread that actually wants method exit, interp_only_mode is set | |
| 1164 return; | |
| 1165 } | |
| 1166 | |
| 1167 // return a flag when a method terminates by throwing an exception | |
| 1168 // i.e. if an exception is thrown and it's not caught by the current method | |
| 1169 bool exception_exit = state->is_exception_detected() && !state->is_exception_caught(); | |
| 1170 | |
| 1171 | |
| 1172 if (state->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1173 Handle result; | |
| 1174 jvalue value; | |
| 1175 value.j = 0L; | |
| 1176 | |
| 1177 // if the method hasn't been popped because of an exception then we populate | |
| 1178 // the return_value parameter for the callback. At this point we only have | |
| 1179 // the address of a "raw result" and we just call into the interpreter to | |
| 1180 // convert this into a jvalue. | |
| 1181 if (!exception_exit) { | |
| 1182 oop oop_result; | |
| 1183 BasicType type = current_frame.interpreter_frame_result(&oop_result, &value); | |
| 1184 if (type == T_OBJECT || type == T_ARRAY) { | |
| 1185 result = Handle(thread, oop_result); | |
| 1186 } | |
| 1187 } | |
| 1188 | |
| 1189 JvmtiEnvThreadStateIterator it(state); | |
| 1190 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1191 if (ets->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1192 EVT_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Evt Method Exit sent %s.%s", | |
| 1193 JvmtiTrace::safe_get_thread_name(thread), | |
| 1194 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1195 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1196 | |
| 1197 JvmtiEnv *env = ets->get_env(); | |
| 1198 JvmtiMethodEventMark jem(thread, mh); | |
| 1199 if (result.not_null()) { | |
| 1200 value.l = JNIHandles::make_local(thread, result()); | |
| 1201 } | |
| 1202 JvmtiJavaThreadEventTransition jet(thread); | |
| 1203 jvmtiEventMethodExit callback = env->callbacks()->MethodExit; | |
| 1204 if (callback != NULL) { | |
| 1205 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1206 jem.jni_methodID(), exception_exit, value); | |
| 1207 } | |
| 1208 } | |
| 1209 } | |
| 1210 } | |
| 1211 | |
| 1212 if (state->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1213 JvmtiEnvThreadStateIterator it(state); | |
| 1214 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1215 int cur_frame_number = state->cur_stack_depth(); | |
| 1216 | |
| 1217 if (ets->is_frame_pop(cur_frame_number)) { | |
| 1218 // we have a NotifyFramePop entry for this frame. | |
| 1219 // now check that this env/thread wants this event | |
| 1220 if (ets->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1221 EVT_TRACE(JVMTI_EVENT_FRAME_POP, ("JVMTI [%s] Evt Frame Pop sent %s.%s", | |
| 1222 JvmtiTrace::safe_get_thread_name(thread), | |
| 1223 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1224 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1225 | |
| 1226 // we also need to issue a frame pop event for this frame | |
| 1227 JvmtiEnv *env = ets->get_env(); | |
| 1228 JvmtiMethodEventMark jem(thread, mh); | |
| 1229 JvmtiJavaThreadEventTransition jet(thread); | |
| 1230 jvmtiEventFramePop callback = env->callbacks()->FramePop; | |
| 1231 if (callback != NULL) { | |
| 1232 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1233 jem.jni_methodID(), exception_exit); | |
| 1234 } | |
| 1235 } | |
| 1236 // remove the frame's entry | |
| 1237 ets->clear_frame_pop(cur_frame_number); | |
| 1238 } | |
| 1239 } | |
| 1240 } | |
| 1241 | |
| 1242 state->decr_cur_stack_depth(); | |
| 1243 } | |
| 1244 | |
| 1245 | |
| 1246 // Todo: inline this for optimization | |
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1247 void JvmtiExport::post_single_step(JavaThread *thread, Method* method, address location) { |
| 0 | 1248 HandleMark hm(thread); |
| 1249 methodHandle mh(thread, method); | |
| 1250 | |
| 1251 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1252 if (state == NULL) { | |
| 1253 return; | |
| 1254 } | |
| 1255 JvmtiEnvThreadStateIterator it(state); | |
| 1256 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1257 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_SINGLE_STEP); | |
| 1258 if (!ets->single_stepping_posted() && ets->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 1259 EVT_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Evt Single Step sent %s.%s @ %d", | |
| 1260 JvmtiTrace::safe_get_thread_name(thread), | |
| 1261 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1262 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1263 location - mh()->code_base() )); | |
| 1264 | |
| 1265 JvmtiEnv *env = ets->get_env(); | |
| 1266 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1267 JvmtiJavaThreadEventTransition jet(thread); | |
| 1268 jvmtiEventSingleStep callback = env->callbacks()->SingleStep; | |
| 1269 if (callback != NULL) { | |
| 1270 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1271 jem.jni_methodID(), jem.location()); | |
| 1272 } | |
| 1273 | |
| 1274 ets->set_single_stepping_posted(); | |
| 1275 } | |
| 1276 } | |
| 1277 } | |
| 1278 | |
| 1279 | |
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1280 void JvmtiExport::post_exception_throw(JavaThread *thread, Method* method, address location, oop exception) { |
| 0 | 1281 HandleMark hm(thread); |
| 1282 methodHandle mh(thread, method); | |
| 1283 Handle exception_handle(thread, exception); | |
| 1284 | |
| 1285 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1286 if (state == NULL) { | |
| 1287 return; | |
| 1288 } | |
| 1289 | |
| 1290 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION, ("JVMTI [%s] Trg Exception thrown triggered", | |
| 1291 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1292 if (!state->is_exception_detected()) { | |
| 1293 state->set_exception_detected(); | |
| 1294 JvmtiEnvThreadStateIterator it(state); | |
| 1295 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1296 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION) && (exception != NULL)) { | |
| 1297 | |
| 1298 EVT_TRACE(JVMTI_EVENT_EXCEPTION, | |
| 1299 ("JVMTI [%s] Evt Exception thrown sent %s.%s @ %d", | |
| 1300 JvmtiTrace::safe_get_thread_name(thread), | |
| 1301 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1302 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1303 location - mh()->code_base() )); | |
| 1304 | |
| 1305 JvmtiEnv *env = ets->get_env(); | |
| 1306 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1307 | |
| 1308 // It's okay to clear these exceptions here because we duplicate | |
| 1309 // this lookup in InterpreterRuntime::exception_handler_for_exception. | |
| 1310 EXCEPTION_MARK; | |
| 1311 | |
| 1312 bool should_repeat; | |
| 1313 vframeStream st(thread); | |
| 1314 assert(!st.at_end(), "cannot be at end"); | |
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1315 Method* current_method = NULL; |
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1316 // A GC may occur during the Method::fast_exception_handler_bci_for() |
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1317 // call below if it needs to load the constraint class. Using a |
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1318 // methodHandle to keep the 'current_method' from being deallocated |
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1319 // if GC happens. |
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1320 methodHandle current_mh = methodHandle(thread, current_method); |
| 0 | 1321 int current_bci = -1; |
| 1322 do { | |
| 1323 current_method = st.method(); | |
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1324 current_mh = methodHandle(thread, current_method); |
| 0 | 1325 current_bci = st.bci(); |
| 1326 do { | |
| 1327 should_repeat = false; | |
| 1328 KlassHandle eh_klass(thread, exception_handle()->klass()); | |
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1329 current_bci = Method::fast_exception_handler_bci_for( |
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1330 current_mh, eh_klass, current_bci, THREAD); |
| 0 | 1331 if (HAS_PENDING_EXCEPTION) { |
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1332 exception_handle = Handle(thread, PENDING_EXCEPTION); |
| 0 | 1333 CLEAR_PENDING_EXCEPTION; |
| 1334 should_repeat = true; | |
| 1335 } | |
| 1336 } while (should_repeat && (current_bci != -1)); | |
| 1337 st.next(); | |
| 1338 } while ((current_bci < 0) && (!st.at_end())); | |
| 1339 | |
| 1340 jmethodID catch_jmethodID; | |
| 1341 if (current_bci < 0) { | |
| 1342 catch_jmethodID = 0; | |
| 1343 current_bci = 0; | |
| 1344 } else { | |
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1345 catch_jmethodID = jem.to_jmethodID(current_mh); |
| 0 | 1346 } |
| 1347 | |
| 1348 JvmtiJavaThreadEventTransition jet(thread); | |
| 1349 jvmtiEventException callback = env->callbacks()->Exception; | |
| 1350 if (callback != NULL) { | |
| 1351 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1352 jem.jni_methodID(), jem.location(), | |
| 1353 jem.exception(), | |
| 1354 catch_jmethodID, current_bci); | |
| 1355 } | |
| 1356 } | |
| 1357 } | |
| 1358 } | |
| 1359 | |
| 1360 // frames may get popped because of this throw, be safe - invalidate cached depth | |
| 1361 state->invalidate_cur_stack_depth(); | |
| 1362 } | |
| 1363 | |
| 1364 | |
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1365 void JvmtiExport::notice_unwind_due_to_exception(JavaThread *thread, Method* method, address location, oop exception, bool in_handler_frame) { |
| 0 | 1366 HandleMark hm(thread); |
| 1367 methodHandle mh(thread, method); | |
| 1368 Handle exception_handle(thread, exception); | |
| 1369 | |
| 1370 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1371 if (state == NULL) { | |
| 1372 return; | |
| 1373 } | |
| 1374 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1375 ("JVMTI [%s] Trg unwind_due_to_exception triggered %s.%s @ %s%d - %s", | |
| 1376 JvmtiTrace::safe_get_thread_name(thread), | |
| 1377 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1378 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1379 location==0? "no location:" : "", | |
| 1380 location==0? 0 : location - mh()->code_base(), | |
| 1381 in_handler_frame? "in handler frame" : "not handler frame" )); | |
| 1382 | |
| 1383 if (state->is_exception_detected()) { | |
| 1384 | |
| 1385 state->invalidate_cur_stack_depth(); | |
| 1386 if (!in_handler_frame) { | |
| 1387 // Not in exception handler. | |
| 1388 if(state->is_interp_only_mode()) { | |
| 1389 // method exit and frame pop events are posted only in interp mode. | |
| 1390 // When these events are enabled code should be in running in interp mode. | |
| 1391 JvmtiExport::post_method_exit(thread, method, thread->last_frame()); | |
| 1392 // The cached cur_stack_depth might have changed from the | |
| 1393 // operations of frame pop or method exit. We are not 100% sure | |
| 1394 // the cached cur_stack_depth is still valid depth so invalidate | |
| 1395 // it. | |
| 1396 state->invalidate_cur_stack_depth(); | |
| 1397 } | |
| 1398 } else { | |
| 1399 // In exception handler frame. Report exception catch. | |
| 1400 assert(location != NULL, "must be a known location"); | |
| 1401 // Update cur_stack_depth - the frames above the current frame | |
| 1402 // have been unwound due to this exception: | |
| 1403 assert(!state->is_exception_caught(), "exception must not be caught yet."); | |
| 1404 state->set_exception_caught(); | |
| 1405 | |
| 1406 JvmtiEnvThreadStateIterator it(state); | |
| 1407 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1408 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION_CATCH) && (exception_handle() != NULL)) { | |
| 1409 EVT_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1410 ("JVMTI [%s] Evt ExceptionCatch sent %s.%s @ %d", | |
| 1411 JvmtiTrace::safe_get_thread_name(thread), | |
| 1412 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1413 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1414 location - mh()->code_base() )); | |
| 1415 | |
| 1416 JvmtiEnv *env = ets->get_env(); | |
| 1417 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1418 JvmtiJavaThreadEventTransition jet(thread); | |
| 1419 jvmtiEventExceptionCatch callback = env->callbacks()->ExceptionCatch; | |
| 1420 if (callback != NULL) { | |
| 1421 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1422 jem.jni_methodID(), jem.location(), | |
| 1423 jem.exception()); | |
| 1424 } | |
| 1425 } | |
| 1426 } | |
| 1427 } | |
| 1428 } | |
| 1429 } | |
| 1430 | |
| 1431 oop JvmtiExport::jni_GetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1432 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1433 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1434 // At least one field access watch is set so we have more work | |
| 1435 // to do. This wrapper is used by entry points that allow us | |
| 1436 // to create handles in post_field_access_by_jni(). | |
| 1437 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1438 // event posting can block so refetch oop if we were passed a jobj | |
| 1439 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1440 } | |
| 1441 return obj; | |
| 1442 } | |
| 1443 | |
| 1444 oop JvmtiExport::jni_GetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
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1445 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1446 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1447 // At least one field access watch is set so we have more work | |
| 1448 // to do. This wrapper is used by "quick" entry points that don't | |
| 1449 // allow us to create handles in post_field_access_by_jni(). We | |
| 1450 // override that with a ResetNoHandleMark. | |
| 1451 ResetNoHandleMark rnhm; | |
| 1452 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1453 // event posting can block so refetch oop if we were passed a jobj | |
| 1454 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1455 } | |
| 1456 return obj; | |
| 1457 } | |
| 1458 | |
| 1459 void JvmtiExport::post_field_access_by_jni(JavaThread *thread, oop obj, | |
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1460 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1461 // We must be called with a Java context in order to provide reasonable |
| 1462 // values for the klazz, method, and location fields. The callers of this | |
| 1463 // function don't make the call unless there is a Java context. | |
| 1464 assert(thread->has_last_Java_frame(), "must be called with a Java context"); | |
| 1465 | |
| 1466 ResourceMark rm; | |
| 1467 fieldDescriptor fd; | |
| 1468 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1469 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1470 assert(valid_fieldID == true,"post_field_access_by_jni called with invalid fieldID"); | |
| 1471 if (!valid_fieldID) return; | |
| 1472 // field accesses are not watched so bail | |
| 1473 if (!fd.is_field_access_watched()) return; | |
| 1474 | |
| 1475 HandleMark hm(thread); | |
| 1476 KlassHandle h_klass(thread, klass); | |
| 1477 Handle h_obj; | |
| 1478 if (!is_static) { | |
| 1479 // non-static field accessors have an object, but we need a handle | |
| 1480 assert(obj != NULL, "non-static needs an object"); | |
| 1481 h_obj = Handle(thread, obj); | |
| 1482 } | |
| 1483 post_field_access(thread, | |
| 1484 thread->last_frame().interpreter_frame_method(), | |
| 1485 thread->last_frame().interpreter_frame_bcp(), | |
| 1486 h_klass, h_obj, fieldID); | |
| 1487 } | |
| 1488 | |
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1489 void JvmtiExport::post_field_access(JavaThread *thread, Method* method, |
| 0 | 1490 address location, KlassHandle field_klass, Handle object, jfieldID field) { |
| 1491 | |
| 1492 HandleMark hm(thread); | |
| 1493 methodHandle mh(thread, method); | |
| 1494 | |
| 1495 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1496 if (state == NULL) { | |
| 1497 return; | |
| 1498 } | |
| 1499 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Trg Field Access event triggered", | |
| 1500 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1501 JvmtiEnvThreadStateIterator it(state); | |
| 1502 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1503 if (ets->is_enabled(JVMTI_EVENT_FIELD_ACCESS)) { | |
| 1504 EVT_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Evt Field Access event sent %s.%s @ %d", | |
| 1505 JvmtiTrace::safe_get_thread_name(thread), | |
| 1506 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1507 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1508 location - mh()->code_base() )); | |
| 1509 | |
| 1510 JvmtiEnv *env = ets->get_env(); | |
| 1511 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1512 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1513 jobject field_jobject = jem.to_jobject(object()); | |
| 1514 JvmtiJavaThreadEventTransition jet(thread); | |
| 1515 jvmtiEventFieldAccess callback = env->callbacks()->FieldAccess; | |
| 1516 if (callback != NULL) { | |
| 1517 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1518 jem.jni_methodID(), jem.location(), | |
| 1519 field_jclass, field_jobject, field); | |
| 1520 } | |
| 1521 } | |
| 1522 } | |
| 1523 } | |
| 1524 | |
| 1525 oop JvmtiExport::jni_SetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1526 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1527 char sig_type, jvalue *value) { |
| 1528 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1529 // At least one field modification watch is set so we have more work | |
| 1530 // to do. This wrapper is used by entry points that allow us | |
| 1531 // to create handles in post_field_modification_by_jni(). | |
| 1532 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1533 // event posting can block so refetch oop if we were passed a jobj | |
| 1534 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1535 } | |
| 1536 return obj; | |
| 1537 } | |
| 1538 | |
| 1539 oop JvmtiExport::jni_SetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
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1540 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1541 char sig_type, jvalue *value) { |
| 1542 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1543 // At least one field modification watch is set so we have more work | |
| 1544 // to do. This wrapper is used by "quick" entry points that don't | |
| 1545 // allow us to create handles in post_field_modification_by_jni(). We | |
| 1546 // override that with a ResetNoHandleMark. | |
| 1547 ResetNoHandleMark rnhm; | |
| 1548 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1549 // event posting can block so refetch oop if we were passed a jobj | |
| 1550 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1551 } | |
| 1552 return obj; | |
| 1553 } | |
| 1554 | |
| 1555 void JvmtiExport::post_field_modification_by_jni(JavaThread *thread, oop obj, | |
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1556 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1557 char sig_type, jvalue *value) { |
| 1558 // We must be called with a Java context in order to provide reasonable | |
| 1559 // values for the klazz, method, and location fields. The callers of this | |
| 1560 // function don't make the call unless there is a Java context. | |
| 1561 assert(thread->has_last_Java_frame(), "must be called with Java context"); | |
| 1562 | |
| 1563 ResourceMark rm; | |
| 1564 fieldDescriptor fd; | |
| 1565 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1566 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1567 assert(valid_fieldID == true,"post_field_modification_by_jni called with invalid fieldID"); | |
| 1568 if (!valid_fieldID) return; | |
| 1569 // field modifications are not watched so bail | |
| 1570 if (!fd.is_field_modification_watched()) return; | |
| 1571 | |
| 1572 HandleMark hm(thread); | |
| 1573 | |
| 1574 Handle h_obj; | |
| 1575 if (!is_static) { | |
| 1576 // non-static field accessors have an object, but we need a handle | |
| 1577 assert(obj != NULL, "non-static needs an object"); | |
| 1578 h_obj = Handle(thread, obj); | |
| 1579 } | |
| 1580 KlassHandle h_klass(thread, klass); | |
| 1581 post_field_modification(thread, | |
| 1582 thread->last_frame().interpreter_frame_method(), | |
| 1583 thread->last_frame().interpreter_frame_bcp(), | |
| 1584 h_klass, h_obj, fieldID, sig_type, value); | |
| 1585 } | |
| 1586 | |
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1587 void JvmtiExport::post_raw_field_modification(JavaThread *thread, Method* method, |
| 0 | 1588 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1589 char sig_type, jvalue *value) { | |
| 1590 | |
| 23614 | 1591 if (sig_type == 'I' || sig_type == 'Z' || sig_type == 'B' || sig_type == 'C' || sig_type == 'S') { |
| 0 | 1592 // 'I' instructions are used for byte, char, short and int. |
| 1593 // determine which it really is, and convert | |
| 1594 fieldDescriptor fd; | |
| 1595 bool found = JvmtiEnv::get_field_descriptor(field_klass(), field, &fd); | |
| 1596 // should be found (if not, leave as is) | |
| 1597 if (found) { | |
| 1598 jint ival = value->i; | |
| 1599 // convert value from int to appropriate type | |
| 1600 switch (fd.field_type()) { | |
| 1601 case T_BOOLEAN: | |
| 1602 sig_type = 'Z'; | |
| 1603 value->i = 0; // clear it | |
| 1604 value->z = (jboolean)ival; | |
| 1605 break; | |
| 1606 case T_BYTE: | |
| 1607 sig_type = 'B'; | |
| 1608 value->i = 0; // clear it | |
| 1609 value->b = (jbyte)ival; | |
| 1610 break; | |
| 1611 case T_CHAR: | |
| 1612 sig_type = 'C'; | |
| 1613 value->i = 0; // clear it | |
| 1614 value->c = (jchar)ival; | |
| 1615 break; | |
| 1616 case T_SHORT: | |
| 1617 sig_type = 'S'; | |
| 1618 value->i = 0; // clear it | |
| 1619 value->s = (jshort)ival; | |
| 1620 break; | |
| 1621 case T_INT: | |
| 1622 // nothing to do | |
| 1623 break; | |
| 1624 default: | |
| 1625 // this is an integer instruction, should be one of above | |
| 1626 ShouldNotReachHere(); | |
| 1627 break; | |
| 1628 } | |
| 1629 } | |
| 1630 } | |
| 1631 | |
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1632 assert(sig_type != '[', "array should have sig_type == 'L'"); |
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1633 bool handle_created = false; |
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1634 |
| 0 | 1635 // convert oop to JNI handle. |
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1636 if (sig_type == 'L') { |
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1637 handle_created = true; |
| 0 | 1638 value->l = (jobject)JNIHandles::make_local(thread, (oop)value->l); |
| 1639 } | |
| 1640 | |
| 1641 post_field_modification(thread, method, location, field_klass, object, field, sig_type, value); | |
| 1642 | |
| 1643 // Destroy the JNI handle allocated above. | |
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1644 if (handle_created) { |
| 0 | 1645 JNIHandles::destroy_local(value->l); |
| 1646 } | |
| 1647 } | |
| 1648 | |
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1649 void JvmtiExport::post_field_modification(JavaThread *thread, Method* method, |
| 0 | 1650 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1651 char sig_type, jvalue *value_ptr) { | |
| 1652 | |
| 1653 HandleMark hm(thread); | |
| 1654 methodHandle mh(thread, method); | |
| 1655 | |
| 1656 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1657 if (state == NULL) { | |
| 1658 return; | |
| 1659 } | |
| 1660 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1661 ("JVMTI [%s] Trg Field Modification event triggered", | |
| 1662 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1663 | |
| 1664 JvmtiEnvThreadStateIterator it(state); | |
| 1665 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1666 if (ets->is_enabled(JVMTI_EVENT_FIELD_MODIFICATION)) { | |
| 1667 EVT_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1668 ("JVMTI [%s] Evt Field Modification event sent %s.%s @ %d", | |
| 1669 JvmtiTrace::safe_get_thread_name(thread), | |
| 1670 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1671 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1672 location - mh()->code_base() )); | |
| 1673 | |
| 1674 JvmtiEnv *env = ets->get_env(); | |
| 1675 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1676 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1677 jobject field_jobject = jem.to_jobject(object()); | |
| 1678 JvmtiJavaThreadEventTransition jet(thread); | |
| 1679 jvmtiEventFieldModification callback = env->callbacks()->FieldModification; | |
| 1680 if (callback != NULL) { | |
| 1681 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1682 jem.jni_methodID(), jem.location(), | |
| 1683 field_jclass, field_jobject, field, sig_type, *value_ptr); | |
| 1684 } | |
| 1685 } | |
| 1686 } | |
| 1687 } | |
| 1688 | |
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1689 void JvmtiExport::post_native_method_bind(Method* method, address* function_ptr) { |
| 0 | 1690 JavaThread* thread = JavaThread::current(); |
| 1691 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1692 | |
| 1693 HandleMark hm(thread); | |
| 1694 methodHandle mh(thread, method); | |
| 1695 | |
| 1696 EVT_TRIG_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Trg Native Method Bind event triggered", | |
| 1697 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1698 | |
| 1699 if (JvmtiEventController::is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1700 JvmtiEnvIterator it; | |
| 1701 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1702 if (env->is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1703 EVT_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Evt Native Method Bind event sent", | |
| 1704 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1705 | |
| 1706 JvmtiMethodEventMark jem(thread, mh); | |
| 1707 JvmtiJavaThreadEventTransition jet(thread); | |
| 1708 JNIEnv* jni_env = JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL? NULL : jem.jni_env(); | |
| 1709 jvmtiEventNativeMethodBind callback = env->callbacks()->NativeMethodBind; | |
| 1710 if (callback != NULL) { | |
| 1711 (*callback)(env->jvmti_external(), jni_env, jem.jni_thread(), | |
| 1712 jem.jni_methodID(), (void*)(*function_ptr), (void**)function_ptr); | |
| 1713 } | |
| 1714 } | |
| 1715 } | |
| 1716 } | |
| 1717 } | |
| 1718 | |
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1719 // Returns a record containing inlining information for the given nmethod |
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1720 jvmtiCompiledMethodLoadInlineRecord* create_inline_record(nmethod* nm) { |
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1721 jint numstackframes = 0; |
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1722 jvmtiCompiledMethodLoadInlineRecord* record = (jvmtiCompiledMethodLoadInlineRecord*)NEW_RESOURCE_OBJ(jvmtiCompiledMethodLoadInlineRecord); |
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1723 record->header.kind = JVMTI_CMLR_INLINE_INFO; |
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1724 record->header.next = NULL; |
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1725 record->header.majorinfoversion = JVMTI_CMLR_MAJOR_VERSION_1; |
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1726 record->header.minorinfoversion = JVMTI_CMLR_MINOR_VERSION_0; |
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1727 record->numpcs = 0; |
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1728 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1729 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1730 record->numpcs++; |
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1731 } |
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1732 record->pcinfo = (PCStackInfo*)(NEW_RESOURCE_ARRAY(PCStackInfo, record->numpcs)); |
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1733 int scope = 0; |
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1734 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1735 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1736 void* pc_address = (void*)p->real_pc(nm); |
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1737 assert(pc_address != NULL, "pc_address must be non-null"); |
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1738 record->pcinfo[scope].pc = pc_address; |
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1739 numstackframes=0; |
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1740 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1741 numstackframes++; |
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1742 } |
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1743 assert(numstackframes != 0, "numstackframes must be nonzero."); |
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1744 record->pcinfo[scope].methods = (jmethodID *)NEW_RESOURCE_ARRAY(jmethodID, numstackframes); |
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1745 record->pcinfo[scope].bcis = (jint *)NEW_RESOURCE_ARRAY(jint, numstackframes); |
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1746 record->pcinfo[scope].numstackframes = numstackframes; |
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1747 int stackframe = 0; |
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1748 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1749 // 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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1750 assert(sd->method() != NULL, "sd->method() cannot be null."); |
|
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1751 record->pcinfo[scope].methods[stackframe] = sd->method()->jmethod_id(); |
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1752 record->pcinfo[scope].bcis[stackframe] = sd->bci(); |
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1753 stackframe++; |
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1754 } |
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1755 scope++; |
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1756 } |
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1757 return record; |
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1758 } |
| 0 | 1759 |
| 1760 void JvmtiExport::post_compiled_method_load(nmethod *nm) { | |
| 1761 JavaThread* thread = JavaThread::current(); | |
| 1762 | |
| 1763 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1764 ("JVMTI [%s] method compile load event triggered", | |
| 1765 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1766 | |
| 1767 JvmtiEnvIterator it; | |
| 1768 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1769 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1770 | |
| 1771 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1772 ("JVMTI [%s] class compile method load event sent %s.%s ", | |
| 1773 JvmtiTrace::safe_get_thread_name(thread), | |
| 1774 (nm->method() == NULL) ? "NULL" : nm->method()->klass_name()->as_C_string(), | |
| 1775 (nm->method() == NULL) ? "NULL" : nm->method()->name()->as_C_string())); | |
| 1776 ResourceMark rm(thread); | |
|
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1777 HandleMark hm(thread); |
|
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1778 |
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1779 // Add inlining information |
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1780 jvmtiCompiledMethodLoadInlineRecord* inlinerecord = create_inline_record(nm); |
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1781 // Pass inlining information through the void pointer |
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1782 JvmtiCompiledMethodLoadEventMark jem(thread, nm, inlinerecord); |
| 0 | 1783 JvmtiJavaThreadEventTransition jet(thread); |
| 1784 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1785 if (callback != NULL) { | |
| 1786 (*callback)(env->jvmti_external(), jem.jni_methodID(), | |
| 1787 jem.code_size(), jem.code_data(), jem.map_length(), | |
| 1788 jem.map(), jem.compile_info()); | |
| 1789 } | |
| 1790 } | |
| 1791 } | |
| 1792 } | |
| 1793 | |
| 1794 | |
| 1795 // post a COMPILED_METHOD_LOAD event for a given environment | |
| 1796 void JvmtiExport::post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length, | |
| 1797 const void *code_begin, const jint map_length, | |
| 1798 const jvmtiAddrLocationMap* map) | |
| 1799 { | |
| 1800 JavaThread* thread = JavaThread::current(); | |
| 1801 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1802 ("JVMTI [%s] method compile load event triggered (by GenerateEvents)", | |
| 1803 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1804 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1805 | |
| 1806 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1807 ("JVMTI [%s] class compile method load event sent (by GenerateEvents), jmethodID=" PTR_FORMAT, | |
| 1808 JvmtiTrace::safe_get_thread_name(thread), method)); | |
| 1809 | |
| 1810 JvmtiEventMark jem(thread); | |
| 1811 JvmtiJavaThreadEventTransition jet(thread); | |
| 1812 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1813 if (callback != NULL) { | |
| 1814 (*callback)(env->jvmti_external(), method, | |
| 1815 length, code_begin, map_length, | |
| 1816 map, NULL); | |
| 1817 } | |
| 1818 } | |
| 1819 } | |
| 1820 | |
| 1821 void JvmtiExport::post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) { | |
|
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1822 assert(name != NULL && name[0] != '\0', "sanity check"); |
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1823 |
| 0 | 1824 JavaThread* thread = JavaThread::current(); |
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1825 // In theory everyone coming thru here is in_vm but we need to be certain |
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1826 // because a callee will do a vm->native transition |
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1827 ThreadInVMfromUnknown __tiv; |
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1828 |
| 0 | 1829 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, |
| 1830 ("JVMTI [%s] method dynamic code generated event triggered", | |
| 1831 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1832 JvmtiEnvIterator it; | |
| 1833 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1834 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1835 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1836 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1837 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1838 JvmtiEventMark jem(thread); | |
| 1839 JvmtiJavaThreadEventTransition jet(thread); | |
| 1840 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1841 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1842 if (callback != NULL) { | |
| 1843 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1844 } | |
| 1845 } | |
| 1846 } | |
| 1847 } | |
| 1848 | |
| 1849 void JvmtiExport::post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) { | |
| 1850 jvmtiPhase phase = JvmtiEnv::get_phase(); | |
| 1851 if (phase == JVMTI_PHASE_PRIMORDIAL || phase == JVMTI_PHASE_START) { | |
| 1852 post_dynamic_code_generated_internal(name, code_begin, code_end); | |
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1853 } else { |
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1854 // It may not be safe to post the event from this thread. Defer all |
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1855 // postings to the service thread so that it can perform them in a safe |
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1856 // context and in-order. |
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1857 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1858 JvmtiDeferredEvent event = JvmtiDeferredEvent::dynamic_code_generated_event( |
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1859 name, code_begin, code_end); |
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1860 JvmtiDeferredEventQueue::enqueue(event); |
| 0 | 1861 } |
| 1862 } | |
| 1863 | |
| 1864 | |
| 1865 // post a DYNAMIC_CODE_GENERATED event for a given environment | |
| 1866 // used by GenerateEvents | |
| 1867 void JvmtiExport::post_dynamic_code_generated(JvmtiEnv* env, const char *name, | |
| 1868 const void *code_begin, const void *code_end) | |
| 1869 { | |
| 1870 JavaThread* thread = JavaThread::current(); | |
| 1871 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1872 ("JVMTI [%s] dynamic code generated event triggered (by GenerateEvents)", | |
| 1873 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1874 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1875 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1876 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1877 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1878 JvmtiEventMark jem(thread); | |
| 1879 JvmtiJavaThreadEventTransition jet(thread); | |
| 1880 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1881 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1882 if (callback != NULL) { | |
| 1883 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1884 } | |
| 1885 } | |
| 1886 } | |
| 1887 | |
| 1888 // post a DynamicCodeGenerated event while holding locks in the VM. | |
| 1889 void JvmtiExport::post_dynamic_code_generated_while_holding_locks(const char* name, | |
| 1890 address code_begin, address code_end) | |
| 1891 { | |
| 1892 // register the stub with the current dynamic code event collector | |
| 1893 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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1894 // state can only be NULL if the current thread is exiting which |
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1895 // should not happen since we're trying to post an event |
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1896 guarantee(state != NULL, "attempt to register stub via an exiting thread"); |
| 0 | 1897 JvmtiDynamicCodeEventCollector* collector = state->get_dynamic_code_event_collector(); |
| 1898 guarantee(collector != NULL, "attempt to register stub without event collector"); | |
| 1899 collector->register_stub(name, code_begin, code_end); | |
| 1900 } | |
| 1901 | |
| 1902 // Collect all the vm internally allocated objects which are visible to java world | |
| 1903 void JvmtiExport::record_vm_internal_object_allocation(oop obj) { | |
| 1904 Thread* thread = ThreadLocalStorage::thread(); | |
| 1905 if (thread != NULL && thread->is_Java_thread()) { | |
| 1906 // Can not take safepoint here. | |
| 1907 No_Safepoint_Verifier no_sfpt; | |
| 1908 // Can not take safepoint here so can not use state_for to get | |
| 1909 // jvmti thread state. | |
| 1910 JvmtiThreadState *state = ((JavaThread*)thread)->jvmti_thread_state(); | |
| 1911 if (state != NULL ) { | |
| 1912 // state is non NULL when VMObjectAllocEventCollector is enabled. | |
| 1913 JvmtiVMObjectAllocEventCollector *collector; | |
| 1914 collector = state->get_vm_object_alloc_event_collector(); | |
| 1915 if (collector != NULL && collector->is_enabled()) { | |
| 1916 // Don't record classes as these will be notified via the ClassLoad | |
| 1917 // event. | |
| 1142 | 1918 if (obj->klass() != SystemDictionary::Class_klass()) { |
| 0 | 1919 collector->record_allocation(obj); |
| 1920 } | |
| 1921 } | |
| 1922 } | |
| 1923 } | |
| 1924 } | |
| 1925 | |
| 1926 void JvmtiExport::post_garbage_collection_finish() { | |
| 1927 Thread *thread = Thread::current(); // this event is posted from VM-Thread. | |
| 1928 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1929 ("JVMTI [%s] garbage collection finish event triggered", | |
| 1930 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1931 JvmtiEnvIterator it; | |
| 1932 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1933 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH)) { | |
| 1934 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1935 ("JVMTI [%s] garbage collection finish event sent ", | |
| 1936 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1937 JvmtiThreadEventTransition jet(thread); | |
| 1938 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1939 jvmtiEventGarbageCollectionFinish callback = env->callbacks()->GarbageCollectionFinish; | |
| 1940 if (callback != NULL) { | |
| 1941 (*callback)(env->jvmti_external()); | |
| 1942 } | |
| 1943 } | |
| 1944 } | |
| 1945 } | |
| 1946 | |
| 1947 void JvmtiExport::post_garbage_collection_start() { | |
| 1948 Thread* thread = Thread::current(); // this event is posted from vm-thread. | |
| 1949 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1950 ("JVMTI [%s] garbage collection start event triggered", | |
| 1951 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1952 JvmtiEnvIterator it; | |
| 1953 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1954 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_START)) { | |
| 1955 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1956 ("JVMTI [%s] garbage collection start event sent ", | |
| 1957 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1958 JvmtiThreadEventTransition jet(thread); | |
| 1959 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1960 jvmtiEventGarbageCollectionStart callback = env->callbacks()->GarbageCollectionStart; | |
| 1961 if (callback != NULL) { | |
| 1962 (*callback)(env->jvmti_external()); | |
| 1963 } | |
| 1964 } | |
| 1965 } | |
| 1966 } | |
| 1967 | |
| 1968 void JvmtiExport::post_data_dump() { | |
| 1969 Thread *thread = Thread::current(); | |
| 1970 EVT_TRIG_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1971 ("JVMTI [%s] data dump request event triggered", | |
| 1972 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1973 JvmtiEnvIterator it; | |
| 1974 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1975 if (env->is_enabled(JVMTI_EVENT_DATA_DUMP_REQUEST)) { | |
| 1976 EVT_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1977 ("JVMTI [%s] data dump request event sent ", | |
| 1978 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1979 JvmtiThreadEventTransition jet(thread); | |
| 1980 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1981 jvmtiEventDataDumpRequest callback = env->callbacks()->DataDumpRequest; | |
| 1982 if (callback != NULL) { | |
| 1983 (*callback)(env->jvmti_external()); | |
| 1984 } | |
| 1985 } | |
| 1986 } | |
| 1987 } | |
| 1988 | |
| 1989 void JvmtiExport::post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 1990 oop object = (oop)obj_mntr->object(); | |
| 1991 if (!ServiceUtil::visible_oop(object)) { | |
| 1992 // Ignore monitor contended enter for vm internal object. | |
| 1993 return; | |
| 1994 } | |
| 1995 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1996 if (state == NULL) { | |
| 1997 return; | |
| 1998 } | |
| 1999 | |
| 2000 HandleMark hm(thread); | |
| 2001 Handle h(thread, object); | |
| 2002 | |
| 2003 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 2004 ("JVMTI [%s] montior contended enter event triggered", | |
| 2005 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2006 | |
| 2007 JvmtiEnvThreadStateIterator it(state); | |
| 2008 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2009 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTER)) { | |
| 2010 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 2011 ("JVMTI [%s] monitor contended enter event sent", | |
| 2012 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2013 JvmtiMonitorEventMark jem(thread, h()); | |
| 2014 JvmtiEnv *env = ets->get_env(); | |
| 2015 JvmtiThreadEventTransition jet(thread); | |
| 2016 jvmtiEventMonitorContendedEnter callback = env->callbacks()->MonitorContendedEnter; | |
| 2017 if (callback != NULL) { | |
| 2018 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2019 } | |
| 2020 } | |
| 2021 } | |
| 2022 } | |
| 2023 | |
| 2024 void JvmtiExport::post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 2025 oop object = (oop)obj_mntr->object(); | |
| 2026 if (!ServiceUtil::visible_oop(object)) { | |
| 2027 // Ignore monitor contended entered for vm internal object. | |
| 2028 return; | |
| 2029 } | |
| 2030 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2031 if (state == NULL) { | |
| 2032 return; | |
| 2033 } | |
| 2034 | |
| 2035 HandleMark hm(thread); | |
| 2036 Handle h(thread, object); | |
| 2037 | |
| 2038 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2039 ("JVMTI [%s] montior contended entered event triggered", | |
| 2040 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2041 | |
| 2042 JvmtiEnvThreadStateIterator it(state); | |
| 2043 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2044 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED)) { | |
| 2045 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2046 ("JVMTI [%s] monitor contended enter event sent", | |
| 2047 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2048 JvmtiMonitorEventMark jem(thread, h()); | |
| 2049 JvmtiEnv *env = ets->get_env(); | |
| 2050 JvmtiThreadEventTransition jet(thread); | |
| 2051 jvmtiEventMonitorContendedEntered callback = env->callbacks()->MonitorContendedEntered; | |
| 2052 if (callback != NULL) { | |
| 2053 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2054 } | |
| 2055 } | |
| 2056 } | |
| 2057 } | |
| 2058 | |
| 2059 void JvmtiExport::post_monitor_wait(JavaThread *thread, oop object, | |
| 2060 jlong timeout) { | |
| 2061 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2062 if (state == NULL) { | |
| 2063 return; | |
| 2064 } | |
| 2065 | |
| 2066 HandleMark hm(thread); | |
| 2067 Handle h(thread, object); | |
| 2068 | |
| 2069 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2070 ("JVMTI [%s] montior wait event triggered", | |
| 2071 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2072 | |
| 2073 JvmtiEnvThreadStateIterator it(state); | |
| 2074 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2075 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAIT)) { | |
| 2076 EVT_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2077 ("JVMTI [%s] monitor wait event sent ", | |
| 2078 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2079 JvmtiMonitorEventMark jem(thread, h()); | |
| 2080 JvmtiEnv *env = ets->get_env(); | |
| 2081 JvmtiThreadEventTransition jet(thread); | |
| 2082 jvmtiEventMonitorWait callback = env->callbacks()->MonitorWait; | |
| 2083 if (callback != NULL) { | |
| 2084 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2085 jem.jni_object(), timeout); | |
| 2086 } | |
| 2087 } | |
| 2088 } | |
| 2089 } | |
| 2090 | |
| 2091 void JvmtiExport::post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) { | |
| 2092 oop object = (oop)obj_mntr->object(); | |
| 2093 if (!ServiceUtil::visible_oop(object)) { | |
| 2094 // Ignore monitor waited for vm internal object. | |
| 2095 return; | |
| 2096 } | |
| 2097 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2098 if (state == NULL) { | |
| 2099 return; | |
| 2100 } | |
| 2101 | |
| 2102 HandleMark hm(thread); | |
| 2103 Handle h(thread, object); | |
| 2104 | |
| 2105 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2106 ("JVMTI [%s] montior waited event triggered", | |
| 2107 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2108 | |
| 2109 JvmtiEnvThreadStateIterator it(state); | |
| 2110 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2111 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAITED)) { | |
| 2112 EVT_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2113 ("JVMTI [%s] monitor waited event sent ", | |
| 2114 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2115 JvmtiMonitorEventMark jem(thread, h()); | |
| 2116 JvmtiEnv *env = ets->get_env(); | |
| 2117 JvmtiThreadEventTransition jet(thread); | |
| 2118 jvmtiEventMonitorWaited callback = env->callbacks()->MonitorWaited; | |
| 2119 if (callback != NULL) { | |
| 2120 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2121 jem.jni_object(), timed_out); | |
| 2122 } | |
| 2123 } | |
| 2124 } | |
| 2125 } | |
| 2126 | |
| 2127 | |
| 2128 void JvmtiExport::post_vm_object_alloc(JavaThread *thread, oop object) { | |
| 2129 EVT_TRIG_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Trg vm object alloc triggered", | |
| 2130 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2131 if (object == NULL) { | |
| 2132 return; | |
| 2133 } | |
| 2134 HandleMark hm(thread); | |
| 2135 Handle h(thread, object); | |
| 2136 JvmtiEnvIterator it; | |
| 2137 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 2138 if (env->is_enabled(JVMTI_EVENT_VM_OBJECT_ALLOC)) { | |
| 2139 EVT_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Evt vmobject alloc sent %s", | |
| 2140 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 2141 object==NULL? "NULL" : java_lang_Class::as_Klass(object)->external_name())); |
| 0 | 2142 |
| 2143 JvmtiVMObjectAllocEventMark jem(thread, h()); | |
| 2144 JvmtiJavaThreadEventTransition jet(thread); | |
| 2145 jvmtiEventVMObjectAlloc callback = env->callbacks()->VMObjectAlloc; | |
| 2146 if (callback != NULL) { | |
| 2147 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2148 jem.jni_jobject(), jem.jni_class(), jem.size()); | |
| 2149 } | |
| 2150 } | |
| 2151 } | |
| 2152 } | |
| 2153 | |
| 2154 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2155 | |
| 2156 void JvmtiExport::cleanup_thread(JavaThread* thread) { | |
| 2157 assert(JavaThread::current() == thread, "thread is not current"); | |
|
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2158 MutexLocker mu(JvmtiThreadState_lock); |
| 0 | 2159 |
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2160 if (thread->jvmti_thread_state() != NULL) { |
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2161 // This has to happen after the thread state is removed, which is |
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2162 // why it is not in post_thread_end_event like its complement |
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2163 // Maybe both these functions should be rolled into the posts? |
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2164 JvmtiEventController::thread_ended(thread); |
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2165 } |
| 0 | 2166 } |
| 2167 | |
|
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2168 void JvmtiExport::clear_detected_exception(JavaThread* thread) { |
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2169 assert(JavaThread::current() == thread, "thread is not current"); |
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2170 |
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2171 JvmtiThreadState* state = thread->jvmti_thread_state(); |
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2172 if (state != NULL) { |
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2173 state->clear_exception_detected(); |
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2174 } |
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2175 } |
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2176 |
| 0 | 2177 void JvmtiExport::oops_do(OopClosure* f) { |
| 2178 JvmtiCurrentBreakpoints::oops_do(f); | |
| 2179 JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(f); | |
| 2180 } | |
| 2181 | |
|
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2182 void JvmtiExport::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f) { |
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2183 JvmtiTagMap::weak_oops_do(is_alive, f); |
|
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2184 } |
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2185 |
|
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2186 void JvmtiExport::gc_epilogue() { |
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2187 JvmtiCurrentBreakpoints::gc_epilogue(); |
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2188 } |
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2189 |
| 0 | 2190 // Onload raw monitor transition. |
| 2191 void JvmtiExport::transition_pending_onload_raw_monitors() { | |
| 2192 JvmtiPendingMonitors::transition_raw_monitors(); | |
| 2193 } | |
| 2194 | |
| 2195 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2196 | |
| 2197 // type for the Agent_OnAttach entry point | |
| 2198 extern "C" { | |
| 2199 typedef jint (JNICALL *OnAttachEntry_t)(JavaVM*, char *, void *); | |
| 2200 } | |
| 2201 | |
| 2202 jint JvmtiExport::load_agent_library(AttachOperation* op, outputStream* st) { | |
| 2203 char ebuf[1024]; | |
| 2204 char buffer[JVM_MAXPATHLEN]; | |
|
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2205 void* library = NULL; |
| 0 | 2206 jint result = JNI_ERR; |
|
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2207 const char *on_attach_symbols[] = AGENT_ONATTACH_SYMBOLS; |
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2208 size_t num_symbol_entries = ARRAY_SIZE(on_attach_symbols); |
| 0 | 2209 |
| 2210 // get agent name and options | |
| 2211 const char* agent = op->arg(0); | |
| 2212 const char* absParam = op->arg(1); | |
| 2213 const char* options = op->arg(2); | |
| 2214 | |
| 2215 // The abs paramter should be "true" or "false" | |
| 2216 bool is_absolute_path = (absParam != NULL) && (strcmp(absParam,"true")==0); | |
| 2217 | |
|
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2218 // Initially marked as invalid. It will be set to valid if we can find the agent |
|
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2219 AgentLibrary *agent_lib = new AgentLibrary(agent, options, is_absolute_path, NULL); |
| 0 | 2220 |
|
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2221 // Check for statically linked in agent. If not found then if the path is |
|
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2222 // absolute we attempt to load the library. Otherwise we try to load it |
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2223 // from the standard dll directory. |
| 0 | 2224 |
|
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2225 if (!os::find_builtin_agent(agent_lib, on_attach_symbols, num_symbol_entries)) { |
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2226 if (is_absolute_path) { |
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2227 library = os::dll_load(agent, ebuf, sizeof ebuf); |
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2228 } else { |
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2229 // Try to load the agent from the standard dll directory |
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2230 if (os::dll_build_name(buffer, sizeof(buffer), Arguments::get_dll_dir(), |
|
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2231 agent)) { |
|
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2232 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
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2233 } |
|
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2234 if (library == NULL) { |
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2235 // not found - try local path |
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2236 char ns[1] = {0}; |
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2237 if (os::dll_build_name(buffer, sizeof(buffer), ns, agent)) { |
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2238 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
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2239 } |
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2240 } |
| 0 | 2241 } |
|
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2242 if (library != NULL) { |
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2243 agent_lib->set_os_lib(library); |
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2244 agent_lib->set_valid(); |
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2245 } |
| 0 | 2246 } |
| 2247 // If the library was loaded then we attempt to invoke the Agent_OnAttach | |
| 2248 // function | |
|
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2249 if (agent_lib->valid()) { |
| 0 | 2250 // Lookup the Agent_OnAttach function |
| 2251 OnAttachEntry_t on_attach_entry = NULL; | |
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2252 on_attach_entry = CAST_TO_FN_PTR(OnAttachEntry_t, |
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2253 os::find_agent_function(agent_lib, false, on_attach_symbols, num_symbol_entries)); |
| 0 | 2254 if (on_attach_entry == NULL) { |
| 2255 // Agent_OnAttach missing - unload library | |
|
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2256 if (!agent_lib->is_static_lib()) { |
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2257 os::dll_unload(library); |
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2258 } |
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|
2259 delete agent_lib; |
| 0 | 2260 } else { |
| 2261 // Invoke the Agent_OnAttach function | |
| 2262 JavaThread* THREAD = JavaThread::current(); | |
| 2263 { | |
| 2264 extern struct JavaVM_ main_vm; | |
| 2265 JvmtiThreadEventMark jem(THREAD); | |
| 2266 JvmtiJavaThreadEventTransition jet(THREAD); | |
| 2267 | |
| 2268 result = (*on_attach_entry)(&main_vm, (char*)options, NULL); | |
| 2269 } | |
| 2270 | |
| 2271 // Agent_OnAttach may have used JNI | |
| 2272 if (HAS_PENDING_EXCEPTION) { | |
| 2273 CLEAR_PENDING_EXCEPTION; | |
| 2274 } | |
| 2275 | |
| 2276 // If OnAttach returns JNI_OK then we add it to the list of | |
| 2277 // agent libraries so that we can call Agent_OnUnload later. | |
| 2278 if (result == JNI_OK) { | |
|
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2279 Arguments::add_loaded_agent(agent_lib); |
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2280 } else { |
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|
2281 delete agent_lib; |
| 0 | 2282 } |
| 2283 | |
| 2284 // Agent_OnAttach executed so completion status is JNI_OK | |
| 2285 st->print_cr("%d", result); | |
| 2286 result = JNI_OK; | |
| 2287 } | |
| 2288 } | |
| 2289 return result; | |
| 2290 } | |
| 2291 | |
| 2292 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2293 | |
| 2294 // Setup current current thread for event collection. | |
| 2295 void JvmtiEventCollector::setup_jvmti_thread_state() { | |
| 2296 // set this event collector to be the current one. | |
| 2297 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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2298 // state can only be NULL if the current thread is exiting which |
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2299 // should not happen since we're trying to configure for event collection |
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|
2300 guarantee(state != NULL, "exiting thread called setup_jvmti_thread_state"); |
| 0 | 2301 if (is_vm_object_alloc_event()) { |
| 2302 _prev = state->get_vm_object_alloc_event_collector(); | |
| 2303 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)this); | |
| 2304 } else if (is_dynamic_code_event()) { | |
| 2305 _prev = state->get_dynamic_code_event_collector(); | |
| 2306 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)this); | |
| 2307 } | |
| 2308 } | |
| 2309 | |
| 2310 // Unset current event collection in this thread and reset it with previous | |
| 2311 // collector. | |
| 2312 void JvmtiEventCollector::unset_jvmti_thread_state() { | |
| 2313 JvmtiThreadState* state = JavaThread::current()->jvmti_thread_state(); | |
| 2314 if (state != NULL) { | |
| 2315 // restore the previous event collector (if any) | |
| 2316 if (is_vm_object_alloc_event()) { | |
| 2317 if (state->get_vm_object_alloc_event_collector() == this) { | |
| 2318 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)_prev); | |
| 2319 } else { | |
| 2320 // this thread's jvmti state was created during the scope of | |
| 2321 // the event collector. | |
| 2322 } | |
| 2323 } else { | |
| 2324 if (is_dynamic_code_event()) { | |
| 2325 if (state->get_dynamic_code_event_collector() == this) { | |
| 2326 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)_prev); | |
| 2327 } else { | |
| 2328 // this thread's jvmti state was created during the scope of | |
| 2329 // the event collector. | |
| 2330 } | |
| 2331 } | |
| 2332 } | |
| 2333 } | |
| 2334 } | |
| 2335 | |
| 2336 // create the dynamic code event collector | |
| 2337 JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(NULL) { | |
| 2338 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 2339 setup_jvmti_thread_state(); | |
| 2340 } | |
| 2341 } | |
| 2342 | |
| 2343 // iterate over any code blob descriptors collected and post a | |
| 2344 // DYNAMIC_CODE_GENERATED event to the profiler. | |
| 2345 JvmtiDynamicCodeEventCollector::~JvmtiDynamicCodeEventCollector() { | |
| 2346 assert(!JavaThread::current()->owns_locks(), "all locks must be released to post deferred events"); | |
| 2347 // iterate over any code blob descriptors that we collected | |
| 2348 if (_code_blobs != NULL) { | |
| 2349 for (int i=0; i<_code_blobs->length(); i++) { | |
| 2350 JvmtiCodeBlobDesc* blob = _code_blobs->at(i); | |
| 2351 JvmtiExport::post_dynamic_code_generated(blob->name(), blob->code_begin(), blob->code_end()); | |
| 2352 FreeHeap(blob); | |
| 2353 } | |
| 2354 delete _code_blobs; | |
| 2355 } | |
| 2356 unset_jvmti_thread_state(); | |
| 2357 } | |
| 2358 | |
| 2359 // register a stub | |
| 2360 void JvmtiDynamicCodeEventCollector::register_stub(const char* name, address start, address end) { | |
| 2361 if (_code_blobs == NULL) { | |
| 6197 | 2362 _code_blobs = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<JvmtiCodeBlobDesc*>(1,true); |
| 0 | 2363 } |
| 2364 _code_blobs->append(new JvmtiCodeBlobDesc(name, start, end)); | |
| 2365 } | |
| 2366 | |
| 2367 // Setup current thread to record vm allocated objects. | |
| 2368 JvmtiVMObjectAllocEventCollector::JvmtiVMObjectAllocEventCollector() : _allocated(NULL) { | |
| 2369 if (JvmtiExport::should_post_vm_object_alloc()) { | |
| 2370 _enable = true; | |
| 2371 setup_jvmti_thread_state(); | |
| 2372 } else { | |
| 2373 _enable = false; | |
| 2374 } | |
| 2375 } | |
| 2376 | |
| 2377 // Post vm_object_alloc event for vm allocated objects visible to java | |
| 2378 // world. | |
| 2379 JvmtiVMObjectAllocEventCollector::~JvmtiVMObjectAllocEventCollector() { | |
| 2380 if (_allocated != NULL) { | |
| 2381 set_enabled(false); | |
| 2382 for (int i = 0; i < _allocated->length(); i++) { | |
| 2383 oop obj = _allocated->at(i); | |
| 2384 if (ServiceUtil::visible_oop(obj)) { | |
| 2385 JvmtiExport::post_vm_object_alloc(JavaThread::current(), obj); | |
| 2386 } | |
| 2387 } | |
| 2388 delete _allocated; | |
| 2389 } | |
| 2390 unset_jvmti_thread_state(); | |
| 2391 } | |
| 2392 | |
| 2393 void JvmtiVMObjectAllocEventCollector::record_allocation(oop obj) { | |
| 2394 assert(is_enabled(), "VM object alloc event collector is not enabled"); | |
| 2395 if (_allocated == NULL) { | |
| 6197 | 2396 _allocated = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<oop>(1, true); |
| 0 | 2397 } |
| 2398 _allocated->push(obj); | |
| 2399 } | |
| 2400 | |
| 2401 // GC support. | |
| 2402 void JvmtiVMObjectAllocEventCollector::oops_do(OopClosure* f) { | |
| 2403 if (_allocated != NULL) { | |
| 2404 for(int i=_allocated->length() - 1; i >= 0; i--) { | |
| 2405 if (_allocated->at(i) != NULL) { | |
| 2406 f->do_oop(_allocated->adr_at(i)); | |
| 2407 } | |
| 2408 } | |
| 2409 } | |
| 2410 } | |
| 2411 | |
| 2412 void JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(OopClosure* f) { | |
| 2413 // no-op if jvmti not enabled | |
| 2414 if (!JvmtiEnv::environments_might_exist()) { | |
| 2415 return; | |
| 2416 } | |
| 2417 | |
| 2418 // Runs at safepoint. So no need to acquire Threads_lock. | |
| 2419 for (JavaThread *jthr = Threads::first(); jthr != NULL; jthr = jthr->next()) { | |
| 2420 JvmtiThreadState *state = jthr->jvmti_thread_state(); | |
| 2421 if (state != NULL) { | |
| 2422 JvmtiVMObjectAllocEventCollector *collector; | |
| 2423 collector = state->get_vm_object_alloc_event_collector(); | |
| 2424 while (collector != NULL) { | |
| 2425 collector->oops_do(f); | |
| 2426 collector = (JvmtiVMObjectAllocEventCollector *)collector->get_prev(); | |
| 2427 } | |
| 2428 } | |
| 2429 } | |
| 2430 } | |
| 2431 | |
| 2432 | |
| 2433 // Disable collection of VMObjectAlloc events | |
| 2434 NoJvmtiVMObjectAllocMark::NoJvmtiVMObjectAllocMark() : _collector(NULL) { | |
| 2435 // a no-op if VMObjectAlloc event is not enabled | |
| 2436 if (!JvmtiExport::should_post_vm_object_alloc()) { | |
| 2437 return; | |
| 2438 } | |
| 2439 Thread* thread = ThreadLocalStorage::thread(); | |
| 2440 if (thread != NULL && thread->is_Java_thread()) { | |
| 2441 JavaThread* current_thread = (JavaThread*)thread; | |
| 2442 JvmtiThreadState *state = current_thread->jvmti_thread_state(); | |
| 2443 if (state != NULL) { | |
| 2444 JvmtiVMObjectAllocEventCollector *collector; | |
| 2445 collector = state->get_vm_object_alloc_event_collector(); | |
| 2446 if (collector != NULL && collector->is_enabled()) { | |
| 2447 _collector = collector; | |
| 2448 _collector->set_enabled(false); | |
| 2449 } | |
| 2450 } | |
| 2451 } | |
| 2452 } | |
| 2453 | |
| 2454 // Re-Enable collection of VMObjectAlloc events (if previously enabled) | |
| 2455 NoJvmtiVMObjectAllocMark::~NoJvmtiVMObjectAllocMark() { | |
| 2456 if (was_enabled()) { | |
| 2457 _collector->set_enabled(true); | |
| 2458 } | |
| 2459 }; | |
| 2460 | |
|
2125
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2461 JvmtiGCMarker::JvmtiGCMarker() { |
| 0 | 2462 // if there aren't any JVMTI environments then nothing to do |
| 2463 if (!JvmtiEnv::environments_might_exist()) { | |
| 2464 return; | |
| 2465 } | |
| 2466 | |
| 2467 if (JvmtiExport::should_post_garbage_collection_start()) { | |
| 2468 JvmtiExport::post_garbage_collection_start(); | |
| 2469 } | |
| 2470 | |
|
2125
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2471 if (SafepointSynchronize::is_at_safepoint()) { |
|
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2472 // 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
|
2473 JvmtiEnvBase::check_for_periodic_clean_up(); |
| 0 | 2474 } |
| 2475 } | |
| 2476 | |
| 2477 JvmtiGCMarker::~JvmtiGCMarker() { | |
| 2478 // if there aren't any JVMTI environments then nothing to do | |
| 2479 if (!JvmtiEnv::environments_might_exist()) { | |
| 2480 return; | |
| 2481 } | |
| 2482 | |
| 2483 // JVMTI notify gc finish | |
| 2484 if (JvmtiExport::should_post_garbage_collection_finish()) { | |
| 2485 JvmtiExport::post_garbage_collection_finish(); | |
| 2486 } | |
| 2487 } |