Mercurial > hg > truffle
annotate src/share/vm/prims/jvmtiExport.cpp @ 14653:0d8d78c0329a
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
Summary: It is more safe to get/update data for suspended threads at a safepoint
Reviewed-by: dcubed, twisti, dholmes
Contributed-by: serguei.spitsyn@oracle.com
| author | sspitsyn |
|---|---|
| date | Sat, 01 Mar 2014 08:05:55 -0800 |
| parents | 016b6a289fc4 |
| children | 4ca6dc0799b6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 7951 | 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "code/nmethod.hpp" | |
| 28 #include "code/pcDesc.hpp" | |
| 29 #include "code/scopeDesc.hpp" | |
| 30 #include "interpreter/interpreter.hpp" | |
| 31 #include "jvmtifiles/jvmtiEnv.hpp" | |
| 32 #include "memory/resourceArea.hpp" | |
| 33 #include "oops/objArrayKlass.hpp" | |
| 34 #include "oops/objArrayOop.hpp" | |
| 35 #include "prims/jvmtiCodeBlobEvents.hpp" | |
| 36 #include "prims/jvmtiEventController.hpp" | |
| 37 #include "prims/jvmtiEventController.inline.hpp" | |
| 38 #include "prims/jvmtiExport.hpp" | |
| 39 #include "prims/jvmtiImpl.hpp" | |
| 40 #include "prims/jvmtiManageCapabilities.hpp" | |
| 41 #include "prims/jvmtiRawMonitor.hpp" | |
| 42 #include "prims/jvmtiTagMap.hpp" | |
| 43 #include "prims/jvmtiThreadState.inline.hpp" | |
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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" | |
| 50 #include "runtime/thread.hpp" | |
| 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 |
| 59 #ifdef JVMTI_TRACE | |
| 60 #define EVT_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_SENT) != 0) { SafeResourceMark rm; tty->print_cr out; } | |
| 61 #define EVT_TRIG_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_TRIGGER) != 0) { SafeResourceMark rm; tty->print_cr out; } | |
| 62 #else | |
| 63 #define EVT_TRIG_TRACE(evt,out) | |
| 64 #define EVT_TRACE(evt,out) | |
| 65 #endif | |
| 66 | |
| 67 /////////////////////////////////////////////////////////////// | |
| 68 // | |
| 69 // JvmtiEventTransition | |
| 70 // | |
| 71 // TO DO -- | |
| 72 // more handle purging | |
| 73 | |
| 74 // Use this for JavaThreads and state is _thread_in_vm. | |
| 75 class JvmtiJavaThreadEventTransition : StackObj { | |
| 76 private: | |
| 77 ResourceMark _rm; | |
| 78 ThreadToNativeFromVM _transition; | |
| 79 HandleMark _hm; | |
| 80 | |
| 81 public: | |
| 82 JvmtiJavaThreadEventTransition(JavaThread *thread) : | |
| 83 _rm(), | |
| 84 _transition(thread), | |
| 85 _hm(thread) {}; | |
| 86 }; | |
| 87 | |
| 88 // For JavaThreads which are not in _thread_in_vm state | |
| 89 // and other system threads use this. | |
| 90 class JvmtiThreadEventTransition : StackObj { | |
| 91 private: | |
| 92 ResourceMark _rm; | |
| 93 HandleMark _hm; | |
| 94 JavaThreadState _saved_state; | |
| 95 JavaThread *_jthread; | |
| 96 | |
| 97 public: | |
| 98 JvmtiThreadEventTransition(Thread *thread) : _rm(), _hm() { | |
| 99 if (thread->is_Java_thread()) { | |
| 100 _jthread = (JavaThread *)thread; | |
| 101 _saved_state = _jthread->thread_state(); | |
| 102 if (_saved_state == _thread_in_Java) { | |
| 103 ThreadStateTransition::transition_from_java(_jthread, _thread_in_native); | |
| 104 } else { | |
| 105 ThreadStateTransition::transition(_jthread, _saved_state, _thread_in_native); | |
| 106 } | |
| 107 } else { | |
| 108 _jthread = NULL; | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 ~JvmtiThreadEventTransition() { | |
| 113 if (_jthread != NULL) | |
| 114 ThreadStateTransition::transition_from_native(_jthread, _saved_state); | |
| 115 } | |
| 116 }; | |
| 117 | |
| 118 | |
| 119 /////////////////////////////////////////////////////////////// | |
| 120 // | |
| 121 // JvmtiEventMark | |
| 122 // | |
| 123 | |
| 124 class JvmtiEventMark : public StackObj { | |
| 125 private: | |
| 126 JavaThread *_thread; | |
| 127 JNIEnv* _jni_env; | |
| 128 bool _exception_detected; | |
| 129 bool _exception_caught; | |
| 130 #if 0 | |
| 131 JNIHandleBlock* _hblock; | |
| 132 #endif | |
| 133 | |
| 134 public: | |
| 135 JvmtiEventMark(JavaThread *thread) : _thread(thread), | |
| 136 _jni_env(thread->jni_environment()) { | |
| 137 #if 0 | |
| 138 _hblock = thread->active_handles(); | |
| 139 _hblock->clear_thoroughly(); // so we can be safe | |
| 140 #else | |
| 141 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 142 // for now, steal JNI push local frame code | |
| 143 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 144 // we are before an event. | |
| 145 // Save current jvmti thread exception state. | |
| 146 if (state != NULL) { | |
| 147 _exception_detected = state->is_exception_detected(); | |
| 148 _exception_caught = state->is_exception_caught(); | |
| 149 } else { | |
| 150 _exception_detected = false; | |
| 151 _exception_caught = false; | |
| 152 } | |
| 153 | |
| 154 JNIHandleBlock* old_handles = thread->active_handles(); | |
| 155 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
| 156 assert(new_handles != NULL, "should not be NULL"); | |
| 157 new_handles->set_pop_frame_link(old_handles); | |
| 158 thread->set_active_handles(new_handles); | |
| 159 #endif | |
| 160 assert(thread == JavaThread::current(), "thread must be current!"); | |
| 161 thread->frame_anchor()->make_walkable(thread); | |
| 162 }; | |
| 163 | |
| 164 ~JvmtiEventMark() { | |
| 165 #if 0 | |
| 166 _hblock->clear(); // for consistency with future correct behavior | |
| 167 #else | |
| 168 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 169 // for now, steal JNI pop local frame code | |
| 170 JNIHandleBlock* old_handles = _thread->active_handles(); | |
| 171 JNIHandleBlock* new_handles = old_handles->pop_frame_link(); | |
| 172 assert(new_handles != NULL, "should not be NULL"); | |
| 173 _thread->set_active_handles(new_handles); | |
| 174 // Note that we set the pop_frame_link to NULL explicitly, otherwise | |
| 175 // the release_block call will release the blocks. | |
| 176 old_handles->set_pop_frame_link(NULL); | |
| 177 JNIHandleBlock::release_block(old_handles, _thread); // may block | |
| 178 #endif | |
| 179 | |
| 180 JvmtiThreadState* state = _thread->jvmti_thread_state(); | |
| 181 // we are continuing after an event. | |
| 182 if (state != NULL) { | |
| 183 // Restore the jvmti thread exception state. | |
| 184 if (_exception_detected) { | |
| 185 state->set_exception_detected(); | |
| 186 } | |
| 187 if (_exception_caught) { | |
| 188 state->set_exception_caught(); | |
| 189 } | |
| 190 } | |
| 191 } | |
| 192 | |
| 193 #if 0 | |
| 194 jobject to_jobject(oop obj) { return obj == NULL? NULL : _hblock->allocate_handle_fast(obj); } | |
| 195 #else | |
| 196 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 197 // for now, use regular make_local | |
| 198 jobject to_jobject(oop obj) { return JNIHandles::make_local(_thread,obj); } | |
| 199 #endif | |
| 200 | |
| 6983 | 201 jclass to_jclass(Klass* klass) { return (klass == NULL ? NULL : (jclass)to_jobject(klass->java_mirror())); } |
| 0 | 202 |
| 203 jmethodID to_jmethodID(methodHandle method) { return method->jmethod_id(); } | |
| 204 | |
| 205 JNIEnv* jni_env() { return _jni_env; } | |
| 206 }; | |
| 207 | |
| 208 class JvmtiThreadEventMark : public JvmtiEventMark { | |
| 209 private: | |
| 210 jthread _jt; | |
| 211 | |
| 212 public: | |
| 213 JvmtiThreadEventMark(JavaThread *thread) : | |
| 214 JvmtiEventMark(thread) { | |
| 215 _jt = (jthread)(to_jobject(thread->threadObj())); | |
| 216 }; | |
| 217 jthread jni_thread() { return _jt; } | |
| 218 }; | |
| 219 | |
| 220 class JvmtiClassEventMark : public JvmtiThreadEventMark { | |
| 221 private: | |
| 222 jclass _jc; | |
| 223 | |
| 224 public: | |
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225 JvmtiClassEventMark(JavaThread *thread, Klass* klass) : |
| 0 | 226 JvmtiThreadEventMark(thread) { |
| 227 _jc = to_jclass(klass); | |
| 228 }; | |
| 229 jclass jni_class() { return _jc; } | |
| 230 }; | |
| 231 | |
| 232 class JvmtiMethodEventMark : public JvmtiThreadEventMark { | |
| 233 private: | |
| 234 jmethodID _mid; | |
| 235 | |
| 236 public: | |
| 237 JvmtiMethodEventMark(JavaThread *thread, methodHandle method) : | |
| 238 JvmtiThreadEventMark(thread), | |
| 239 _mid(to_jmethodID(method)) {}; | |
| 240 jmethodID jni_methodID() { return _mid; } | |
| 241 }; | |
| 242 | |
| 243 class JvmtiLocationEventMark : public JvmtiMethodEventMark { | |
| 244 private: | |
| 245 jlocation _loc; | |
| 246 | |
| 247 public: | |
| 248 JvmtiLocationEventMark(JavaThread *thread, methodHandle method, address location) : | |
| 249 JvmtiMethodEventMark(thread, method), | |
| 250 _loc(location - method->code_base()) {}; | |
| 251 jlocation location() { return _loc; } | |
| 252 }; | |
| 253 | |
| 254 class JvmtiExceptionEventMark : public JvmtiLocationEventMark { | |
| 255 private: | |
| 256 jobject _exc; | |
| 257 | |
| 258 public: | |
| 259 JvmtiExceptionEventMark(JavaThread *thread, methodHandle method, address location, Handle exception) : | |
| 260 JvmtiLocationEventMark(thread, method, location), | |
| 261 _exc(to_jobject(exception())) {}; | |
| 262 jobject exception() { return _exc; } | |
| 263 }; | |
| 264 | |
| 265 class JvmtiClassFileLoadEventMark : public JvmtiThreadEventMark { | |
| 266 private: | |
| 267 const char *_class_name; | |
| 268 jobject _jloader; | |
| 269 jobject _protection_domain; | |
| 270 jclass _class_being_redefined; | |
| 271 | |
| 272 public: | |
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273 JvmtiClassFileLoadEventMark(JavaThread *thread, Symbol* name, |
| 0 | 274 Handle class_loader, Handle prot_domain, KlassHandle *class_being_redefined) : JvmtiThreadEventMark(thread) { |
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275 _class_name = name != NULL? name->as_utf8() : NULL; |
| 0 | 276 _jloader = (jobject)to_jobject(class_loader()); |
| 277 _protection_domain = (jobject)to_jobject(prot_domain()); | |
| 278 if (class_being_redefined == NULL) { | |
| 279 _class_being_redefined = NULL; | |
| 280 } else { | |
| 281 _class_being_redefined = (jclass)to_jclass((*class_being_redefined)()); | |
| 282 } | |
| 283 }; | |
| 284 const char *class_name() { | |
| 285 return _class_name; | |
| 286 } | |
| 287 jobject jloader() { | |
| 288 return _jloader; | |
| 289 } | |
| 290 jobject protection_domain() { | |
| 291 return _protection_domain; | |
| 292 } | |
| 293 jclass class_being_redefined() { | |
| 294 return _class_being_redefined; | |
| 295 } | |
| 296 }; | |
| 297 | |
| 298 ////////////////////////////////////////////////////////////////////////////// | |
| 299 | |
| 300 int JvmtiExport::_field_access_count = 0; | |
| 301 int JvmtiExport::_field_modification_count = 0; | |
| 302 | |
| 303 bool JvmtiExport::_can_access_local_variables = false; | |
| 304 bool JvmtiExport::_can_hotswap_or_post_breakpoint = false; | |
| 305 bool JvmtiExport::_can_modify_any_class = false; | |
| 306 bool JvmtiExport::_can_walk_any_space = false; | |
| 307 | |
| 308 bool JvmtiExport::_has_redefined_a_class = false; | |
| 309 bool JvmtiExport::_all_dependencies_are_recorded = false; | |
| 310 | |
| 311 // | |
| 312 // field access management | |
| 313 // | |
| 314 | |
| 315 // interpreter generator needs the address of the counter | |
| 316 address JvmtiExport::get_field_access_count_addr() { | |
| 317 // We don't grab a lock because we don't want to | |
| 318 // serialize field access between all threads. This means that a | |
| 319 // thread on another processor can see the wrong count value and | |
| 320 // may either miss making a needed call into post_field_access() | |
| 321 // or will make an unneeded call into post_field_access(). We pay | |
| 322 // this price to avoid slowing down the VM when we aren't watching | |
| 323 // field accesses. | |
| 324 // Other access/mutation safe by virtue of being in VM state. | |
| 325 return (address)(&_field_access_count); | |
| 326 } | |
| 327 | |
| 328 // | |
| 329 // field modification management | |
| 330 // | |
| 331 | |
| 332 // interpreter generator needs the address of the counter | |
| 333 address JvmtiExport::get_field_modification_count_addr() { | |
| 334 // We don't grab a lock because we don't | |
| 335 // want to serialize field modification between all threads. This | |
| 336 // means that a thread on another processor can see the wrong | |
| 337 // count value and may either miss making a needed call into | |
| 338 // post_field_modification() or will make an unneeded call into | |
| 339 // post_field_modification(). We pay this price to avoid slowing | |
| 340 // down the VM when we aren't watching field modifications. | |
| 341 // Other access/mutation safe by virtue of being in VM state. | |
| 342 return (address)(&_field_modification_count); | |
| 343 } | |
| 344 | |
| 345 | |
| 346 /////////////////////////////////////////////////////////////// | |
| 347 // Functions needed by java.lang.instrument for starting up javaagent. | |
| 348 /////////////////////////////////////////////////////////////// | |
| 349 | |
| 350 jint | |
| 351 JvmtiExport::get_jvmti_interface(JavaVM *jvm, void **penv, jint version) { | |
| 1121 | 352 // The JVMTI_VERSION_INTERFACE_JVMTI part of the version number |
| 353 // has already been validated in JNI GetEnv(). | |
| 354 int major, minor, micro; | |
| 355 | |
| 356 // micro version doesn't matter here (yet?) | |
| 357 decode_version_values(version, &major, &minor, µ); | |
| 358 switch (major) { | |
| 1988 | 359 case 1: |
| 1121 | 360 switch (minor) { |
| 1988 | 361 case 0: // version 1.0.<micro> is recognized |
| 362 case 1: // version 1.1.<micro> is recognized | |
| 363 case 2: // version 1.2.<micro> is recognized | |
| 1121 | 364 break; |
| 365 | |
| 1988 | 366 default: |
| 1121 | 367 return JNI_EVERSION; // unsupported minor version number |
| 368 } | |
| 369 break; | |
| 1988 | 370 default: |
| 1121 | 371 return JNI_EVERSION; // unsupported major version number |
| 372 } | |
| 0 | 373 |
| 374 if (JvmtiEnv::get_phase() == JVMTI_PHASE_LIVE) { | |
| 375 JavaThread* current_thread = (JavaThread*) ThreadLocalStorage::thread(); | |
| 376 // transition code: native to VM | |
| 377 ThreadInVMfromNative __tiv(current_thread); | |
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378 VM_ENTRY_BASE(jvmtiEnv*, JvmtiExport::get_jvmti_interface, current_thread) |
| 0 | 379 debug_only(VMNativeEntryWrapper __vew;) |
| 380 | |
| 1121 | 381 JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
| 0 | 382 *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
| 383 return JNI_OK; | |
| 384 | |
| 385 } else if (JvmtiEnv::get_phase() == JVMTI_PHASE_ONLOAD) { | |
| 386 // not live, no thread to transition | |
| 1121 | 387 JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
| 0 | 388 *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
| 389 return JNI_OK; | |
| 390 | |
| 391 } else { | |
| 392 // Called at the wrong time | |
| 393 *penv = NULL; | |
| 394 return JNI_EDETACHED; | |
| 395 } | |
| 396 } | |
| 397 | |
| 1121 | 398 |
| 399 void | |
| 400 JvmtiExport::decode_version_values(jint version, int * major, int * minor, | |
| 401 int * micro) { | |
| 402 *major = (version & JVMTI_VERSION_MASK_MAJOR) >> JVMTI_VERSION_SHIFT_MAJOR; | |
| 403 *minor = (version & JVMTI_VERSION_MASK_MINOR) >> JVMTI_VERSION_SHIFT_MINOR; | |
| 404 *micro = (version & JVMTI_VERSION_MASK_MICRO) >> JVMTI_VERSION_SHIFT_MICRO; | |
| 405 } | |
| 406 | |
| 0 | 407 void JvmtiExport::enter_primordial_phase() { |
| 408 JvmtiEnvBase::set_phase(JVMTI_PHASE_PRIMORDIAL); | |
| 409 } | |
| 410 | |
| 411 void JvmtiExport::enter_start_phase() { | |
| 412 JvmtiManageCapabilities::recompute_always_capabilities(); | |
| 413 JvmtiEnvBase::set_phase(JVMTI_PHASE_START); | |
| 414 } | |
| 415 | |
| 416 void JvmtiExport::enter_onload_phase() { | |
| 417 JvmtiEnvBase::set_phase(JVMTI_PHASE_ONLOAD); | |
| 418 } | |
| 419 | |
| 420 void JvmtiExport::enter_live_phase() { | |
| 421 JvmtiEnvBase::set_phase(JVMTI_PHASE_LIVE); | |
| 422 } | |
| 423 | |
| 424 // | |
| 425 // JVMTI events that the VM posts to the debugger and also startup agent | |
| 426 // and call the agent's premain() for java.lang.instrument. | |
| 427 // | |
| 428 | |
| 429 void JvmtiExport::post_vm_start() { | |
| 430 EVT_TRIG_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Trg VM start event triggered" )); | |
| 431 | |
| 432 // can now enable some events | |
| 433 JvmtiEventController::vm_start(); | |
| 434 | |
| 435 JvmtiEnvIterator it; | |
| 436 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 437 if (env->is_enabled(JVMTI_EVENT_VM_START)) { | |
| 438 EVT_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Evt VM start event sent" )); | |
| 439 | |
| 440 JavaThread *thread = JavaThread::current(); | |
| 441 JvmtiThreadEventMark jem(thread); | |
| 442 JvmtiJavaThreadEventTransition jet(thread); | |
| 443 jvmtiEventVMStart callback = env->callbacks()->VMStart; | |
| 444 if (callback != NULL) { | |
| 445 (*callback)(env->jvmti_external(), jem.jni_env()); | |
| 446 } | |
| 447 } | |
| 448 } | |
| 449 } | |
| 450 | |
| 451 | |
| 452 void JvmtiExport::post_vm_initialized() { | |
| 453 EVT_TRIG_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Trg VM init event triggered" )); | |
| 454 | |
| 455 // can now enable events | |
| 456 JvmtiEventController::vm_init(); | |
| 457 | |
| 458 JvmtiEnvIterator it; | |
| 459 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 460 if (env->is_enabled(JVMTI_EVENT_VM_INIT)) { | |
| 461 EVT_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Evt VM init event sent" )); | |
| 462 | |
| 463 JavaThread *thread = JavaThread::current(); | |
| 464 JvmtiThreadEventMark jem(thread); | |
| 465 JvmtiJavaThreadEventTransition jet(thread); | |
| 466 jvmtiEventVMInit callback = env->callbacks()->VMInit; | |
| 467 if (callback != NULL) { | |
| 468 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 469 } | |
| 470 } | |
| 471 } | |
| 472 } | |
| 473 | |
| 474 | |
| 475 void JvmtiExport::post_vm_death() { | |
| 476 EVT_TRIG_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Trg VM death event triggered" )); | |
| 477 | |
| 478 JvmtiEnvIterator it; | |
| 479 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 480 if (env->is_enabled(JVMTI_EVENT_VM_DEATH)) { | |
| 481 EVT_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Evt VM death event sent" )); | |
| 482 | |
| 483 JavaThread *thread = JavaThread::current(); | |
| 484 JvmtiEventMark jem(thread); | |
| 485 JvmtiJavaThreadEventTransition jet(thread); | |
| 486 jvmtiEventVMDeath callback = env->callbacks()->VMDeath; | |
| 487 if (callback != NULL) { | |
| 488 (*callback)(env->jvmti_external(), jem.jni_env()); | |
| 489 } | |
| 490 } | |
| 491 } | |
| 492 | |
| 493 JvmtiEnvBase::set_phase(JVMTI_PHASE_DEAD); | |
| 494 JvmtiEventController::vm_death(); | |
| 495 } | |
| 496 | |
| 497 char** | |
| 498 JvmtiExport::get_all_native_method_prefixes(int* count_ptr) { | |
| 499 // Have to grab JVMTI thread state lock to be sure environment doesn't | |
| 500 // go away while we iterate them. No locks during VM bring-up. | |
| 501 if (Threads::number_of_threads() == 0 || SafepointSynchronize::is_at_safepoint()) { | |
| 502 return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); | |
| 503 } else { | |
| 504 MutexLocker mu(JvmtiThreadState_lock); | |
| 505 return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); | |
| 506 } | |
| 507 } | |
| 508 | |
| 509 class JvmtiClassFileLoadHookPoster : public StackObj { | |
| 510 private: | |
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511 Symbol* _h_name; |
| 0 | 512 Handle _class_loader; |
| 513 Handle _h_protection_domain; | |
| 514 unsigned char ** _data_ptr; | |
| 515 unsigned char ** _end_ptr; | |
| 516 JavaThread * _thread; | |
| 517 jint _curr_len; | |
| 518 unsigned char * _curr_data; | |
| 519 JvmtiEnv * _curr_env; | |
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520 JvmtiCachedClassFileData ** _cached_class_file_ptr; |
| 0 | 521 JvmtiThreadState * _state; |
| 522 KlassHandle * _h_class_being_redefined; | |
| 523 JvmtiClassLoadKind _load_kind; | |
| 524 | |
| 525 public: | |
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526 inline JvmtiClassFileLoadHookPoster(Symbol* h_name, Handle class_loader, |
| 0 | 527 Handle h_protection_domain, |
| 528 unsigned char **data_ptr, unsigned char **end_ptr, | |
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529 JvmtiCachedClassFileData **cache_ptr) { |
| 0 | 530 _h_name = h_name; |
| 531 _class_loader = class_loader; | |
| 532 _h_protection_domain = h_protection_domain; | |
| 533 _data_ptr = data_ptr; | |
| 534 _end_ptr = end_ptr; | |
| 535 _thread = JavaThread::current(); | |
| 536 _curr_len = *end_ptr - *data_ptr; | |
| 537 _curr_data = *data_ptr; | |
| 538 _curr_env = NULL; | |
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539 _cached_class_file_ptr = cache_ptr; |
| 0 | 540 |
| 541 _state = _thread->jvmti_thread_state(); | |
| 542 if (_state != NULL) { | |
| 543 _h_class_being_redefined = _state->get_class_being_redefined(); | |
| 544 _load_kind = _state->get_class_load_kind(); | |
| 545 // Clear class_being_redefined flag here. The action | |
| 546 // from agent handler could generate a new class file load | |
| 547 // hook event and if it is not cleared the new event generated | |
| 548 // from regular class file load could have this stale redefined | |
| 549 // class handle info. | |
| 550 _state->clear_class_being_redefined(); | |
| 551 } else { | |
| 552 // redefine and retransform will always set the thread state | |
| 553 _h_class_being_redefined = (KlassHandle *) NULL; | |
| 554 _load_kind = jvmti_class_load_kind_load; | |
| 555 } | |
| 556 } | |
| 557 | |
| 558 void post() { | |
| 559 // EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 560 // ("JVMTI [%s] class file load hook event triggered", | |
| 561 // JvmtiTrace::safe_get_thread_name(_thread))); | |
| 562 post_all_envs(); | |
| 563 copy_modified_data(); | |
| 564 } | |
| 565 | |
| 566 private: | |
| 567 void post_all_envs() { | |
| 568 if (_load_kind != jvmti_class_load_kind_retransform) { | |
| 569 // for class load and redefine, | |
| 570 // call the non-retransformable agents | |
| 571 JvmtiEnvIterator it; | |
| 572 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 573 if (!env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 574 // non-retransformable agents cannot retransform back, | |
| 575 // so no need to cache the original class file bytes | |
| 576 post_to_env(env, false); | |
| 577 } | |
| 578 } | |
| 579 } | |
| 580 JvmtiEnvIterator it; | |
| 581 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 582 // retransformable agents get all events | |
| 583 if (env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 584 // retransformable agents need to cache the original class file | |
| 585 // bytes if changes are made via the ClassFileLoadHook | |
| 586 post_to_env(env, true); | |
| 587 } | |
| 588 } | |
| 589 } | |
| 590 | |
| 591 void post_to_env(JvmtiEnv* env, bool caching_needed) { | |
| 592 unsigned char *new_data = NULL; | |
| 593 jint new_len = 0; | |
| 594 // EVT_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 595 // ("JVMTI [%s] class file load hook event sent %s data_ptr = %d, data_len = %d", | |
| 596 // JvmtiTrace::safe_get_thread_name(_thread), | |
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597 // _h_name == NULL ? "NULL" : _h_name->as_utf8(), |
| 0 | 598 // _curr_data, _curr_len )); |
| 599 JvmtiClassFileLoadEventMark jem(_thread, _h_name, _class_loader, | |
| 600 _h_protection_domain, | |
| 601 _h_class_being_redefined); | |
| 602 JvmtiJavaThreadEventTransition jet(_thread); | |
| 603 JNIEnv* jni_env = (JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL)? | |
| 604 NULL : jem.jni_env(); | |
| 605 jvmtiEventClassFileLoadHook callback = env->callbacks()->ClassFileLoadHook; | |
| 606 if (callback != NULL) { | |
| 607 (*callback)(env->jvmti_external(), jni_env, | |
| 608 jem.class_being_redefined(), | |
| 609 jem.jloader(), jem.class_name(), | |
| 610 jem.protection_domain(), | |
| 611 _curr_len, _curr_data, | |
| 612 &new_len, &new_data); | |
| 613 } | |
| 614 if (new_data != NULL) { | |
| 615 // this agent has modified class data. | |
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616 if (caching_needed && *_cached_class_file_ptr == NULL) { |
| 0 | 617 // data has been changed by the new retransformable agent |
| 618 // and it hasn't already been cached, cache it | |
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619 JvmtiCachedClassFileData *p; |
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620 p = (JvmtiCachedClassFileData *)os::malloc( |
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621 offset_of(JvmtiCachedClassFileData, data) + _curr_len, mtInternal); |
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622 if (p == NULL) { |
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623 vm_exit_out_of_memory(offset_of(JvmtiCachedClassFileData, data) + _curr_len, |
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624 OOM_MALLOC_ERROR, |
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625 "unable to allocate cached copy of original class bytes"); |
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626 } |
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627 p->length = _curr_len; |
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628 memcpy(p->data, _curr_data, _curr_len); |
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629 *_cached_class_file_ptr = p; |
| 0 | 630 } |
| 631 | |
| 632 if (_curr_data != *_data_ptr) { | |
| 633 // curr_data is previous agent modified class data. | |
| 634 // And this has been changed by the new agent so | |
| 635 // we can delete it now. | |
| 636 _curr_env->Deallocate(_curr_data); | |
| 637 } | |
| 638 | |
| 639 // Class file data has changed by the current agent. | |
| 640 _curr_data = new_data; | |
| 641 _curr_len = new_len; | |
| 642 // Save the current agent env we need this to deallocate the | |
| 643 // memory allocated by this agent. | |
| 644 _curr_env = env; | |
| 645 } | |
| 646 } | |
| 647 | |
| 648 void copy_modified_data() { | |
| 649 // if one of the agent has modified class file data. | |
| 650 // Copy modified class data to new resources array. | |
| 651 if (_curr_data != *_data_ptr) { | |
| 652 *_data_ptr = NEW_RESOURCE_ARRAY(u1, _curr_len); | |
| 653 memcpy(*_data_ptr, _curr_data, _curr_len); | |
| 654 *_end_ptr = *_data_ptr + _curr_len; | |
| 655 _curr_env->Deallocate(_curr_data); | |
| 656 } | |
| 657 } | |
| 658 }; | |
| 659 | |
| 660 bool JvmtiExport::_should_post_class_file_load_hook = false; | |
| 661 | |
| 662 // this entry is for class file load hook on class load, redefine and retransform | |
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663 void JvmtiExport::post_class_file_load_hook(Symbol* h_name, |
| 0 | 664 Handle class_loader, |
| 665 Handle h_protection_domain, | |
| 666 unsigned char **data_ptr, | |
| 667 unsigned char **end_ptr, | |
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668 JvmtiCachedClassFileData **cache_ptr) { |
| 0 | 669 JvmtiClassFileLoadHookPoster poster(h_name, class_loader, |
| 670 h_protection_domain, | |
| 671 data_ptr, end_ptr, | |
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672 cache_ptr); |
| 0 | 673 poster.post(); |
| 674 } | |
| 675 | |
| 676 void JvmtiExport::report_unsupported(bool on) { | |
| 677 // If any JVMTI service is turned on, we need to exit before native code | |
| 678 // tries to access nonexistant services. | |
| 679 if (on) { | |
| 680 vm_exit_during_initialization("Java Kernel does not support JVMTI."); | |
| 681 } | |
| 682 } | |
| 683 | |
| 684 | |
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685 static inline Klass* oop_to_klass(oop obj) { |
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686 Klass* k = obj->klass(); |
| 0 | 687 |
| 688 // if the object is a java.lang.Class then return the java mirror | |
| 1142 | 689 if (k == SystemDictionary::Class_klass()) { |
| 0 | 690 if (!java_lang_Class::is_primitive(obj)) { |
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691 k = java_lang_Class::as_Klass(obj); |
| 0 | 692 assert(k != NULL, "class for non-primitive mirror must exist"); |
| 693 } | |
| 694 } | |
| 695 return k; | |
| 696 } | |
| 697 | |
| 698 class JvmtiVMObjectAllocEventMark : public JvmtiClassEventMark { | |
| 699 private: | |
| 700 jobject _jobj; | |
| 701 jlong _size; | |
| 702 public: | |
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703 JvmtiVMObjectAllocEventMark(JavaThread *thread, oop obj) : JvmtiClassEventMark(thread, oop_to_klass(obj)) { |
| 0 | 704 _jobj = (jobject)to_jobject(obj); |
| 705 _size = obj->size() * wordSize; | |
| 706 }; | |
| 707 jobject jni_jobject() { return _jobj; } | |
| 708 jlong size() { return _size; } | |
| 709 }; | |
| 710 | |
| 711 class JvmtiCompiledMethodLoadEventMark : public JvmtiMethodEventMark { | |
| 712 private: | |
| 713 jint _code_size; | |
| 714 const void *_code_data; | |
| 715 jint _map_length; | |
| 716 jvmtiAddrLocationMap *_map; | |
| 717 const void *_compile_info; | |
| 718 public: | |
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719 JvmtiCompiledMethodLoadEventMark(JavaThread *thread, nmethod *nm, void* compile_info_ptr = NULL) |
| 0 | 720 : JvmtiMethodEventMark(thread,methodHandle(thread, nm->method())) { |
| 1748 | 721 _code_data = nm->insts_begin(); |
| 722 _code_size = nm->insts_size(); | |
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723 _compile_info = compile_info_ptr; // Set void pointer of compiledMethodLoad Event. Default value is NULL. |
| 0 | 724 JvmtiCodeBlobEvents::build_jvmti_addr_location_map(nm, &_map, &_map_length); |
| 725 } | |
| 726 ~JvmtiCompiledMethodLoadEventMark() { | |
| 6197 | 727 FREE_C_HEAP_ARRAY(jvmtiAddrLocationMap, _map, mtInternal); |
| 0 | 728 } |
| 729 | |
| 730 jint code_size() { return _code_size; } | |
| 731 const void *code_data() { return _code_data; } | |
| 732 jint map_length() { return _map_length; } | |
| 733 const jvmtiAddrLocationMap* map() { return _map; } | |
| 734 const void *compile_info() { return _compile_info; } | |
| 735 }; | |
| 736 | |
| 737 | |
| 738 | |
| 739 class JvmtiMonitorEventMark : public JvmtiThreadEventMark { | |
| 740 private: | |
| 741 jobject _jobj; | |
| 742 public: | |
| 743 JvmtiMonitorEventMark(JavaThread *thread, oop object) | |
| 744 : JvmtiThreadEventMark(thread){ | |
| 745 _jobj = to_jobject(object); | |
| 746 } | |
| 747 jobject jni_object() { return _jobj; } | |
| 748 }; | |
| 749 | |
| 750 /////////////////////////////////////////////////////////////// | |
| 751 // | |
| 752 // pending CompiledMethodUnload support | |
| 753 // | |
| 754 | |
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755 void JvmtiExport::post_compiled_method_unload( |
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756 jmethodID method, const void *code_begin) { |
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757 JavaThread* thread = JavaThread::current(); |
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758 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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759 ("JVMTI [%s] method compile unload event triggered", |
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760 JvmtiTrace::safe_get_thread_name(thread))); |
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761 |
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762 // post the event for each environment that has this event enabled. |
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763 JvmtiEnvIterator it; |
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764 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
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765 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_UNLOAD)) { |
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766 |
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767 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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768 ("JVMTI [%s] class compile method unload event sent jmethodID " PTR_FORMAT, |
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769 JvmtiTrace::safe_get_thread_name(thread), method)); |
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770 |
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771 ResourceMark rm(thread); |
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772 |
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773 JvmtiEventMark jem(thread); |
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774 JvmtiJavaThreadEventTransition jet(thread); |
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775 jvmtiEventCompiledMethodUnload callback = env->callbacks()->CompiledMethodUnload; |
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776 if (callback != NULL) { |
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777 (*callback)(env->jvmti_external(), method, code_begin); |
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778 } |
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779 } |
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780 } |
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781 } |
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782 |
| 0 | 783 /////////////////////////////////////////////////////////////// |
| 784 // | |
| 785 // JvmtiExport | |
| 786 // | |
| 787 | |
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788 void JvmtiExport::post_raw_breakpoint(JavaThread *thread, Method* method, address location) { |
| 0 | 789 HandleMark hm(thread); |
| 790 methodHandle mh(thread, method); | |
| 791 | |
| 792 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 793 if (state == NULL) { | |
| 794 return; | |
| 795 } | |
| 796 EVT_TRIG_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Trg Breakpoint triggered", | |
| 797 JvmtiTrace::safe_get_thread_name(thread))); | |
| 798 JvmtiEnvThreadStateIterator it(state); | |
| 799 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 800 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_BREAKPOINT); | |
| 801 if (!ets->breakpoint_posted() && ets->is_enabled(JVMTI_EVENT_BREAKPOINT)) { | |
| 802 ThreadState old_os_state = thread->osthread()->get_state(); | |
| 803 thread->osthread()->set_state(BREAKPOINTED); | |
| 804 EVT_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Evt Breakpoint sent %s.%s @ %d", | |
| 805 JvmtiTrace::safe_get_thread_name(thread), | |
| 806 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 807 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 808 location - mh()->code_base() )); | |
| 809 | |
| 810 JvmtiEnv *env = ets->get_env(); | |
| 811 JvmtiLocationEventMark jem(thread, mh, location); | |
| 812 JvmtiJavaThreadEventTransition jet(thread); | |
| 813 jvmtiEventBreakpoint callback = env->callbacks()->Breakpoint; | |
| 814 if (callback != NULL) { | |
| 815 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 816 jem.jni_methodID(), jem.location()); | |
| 817 } | |
| 818 | |
| 819 ets->set_breakpoint_posted(); | |
| 820 thread->osthread()->set_state(old_os_state); | |
| 821 } | |
| 822 } | |
| 823 } | |
| 824 | |
| 825 ////////////////////////////////////////////////////////////////////////////// | |
| 826 | |
| 827 bool JvmtiExport::_can_get_source_debug_extension = false; | |
| 828 bool JvmtiExport::_can_maintain_original_method_order = false; | |
| 829 bool JvmtiExport::_can_post_interpreter_events = false; | |
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830 bool JvmtiExport::_can_post_on_exceptions = false; |
| 0 | 831 bool JvmtiExport::_can_post_breakpoint = false; |
| 832 bool JvmtiExport::_can_post_field_access = false; | |
| 833 bool JvmtiExport::_can_post_field_modification = false; | |
| 834 bool JvmtiExport::_can_post_method_entry = false; | |
| 835 bool JvmtiExport::_can_post_method_exit = false; | |
| 836 bool JvmtiExport::_can_pop_frame = false; | |
| 837 bool JvmtiExport::_can_force_early_return = false; | |
| 838 | |
| 839 bool JvmtiExport::_should_post_single_step = false; | |
| 840 bool JvmtiExport::_should_post_field_access = false; | |
| 841 bool JvmtiExport::_should_post_field_modification = false; | |
| 842 bool JvmtiExport::_should_post_class_load = false; | |
| 843 bool JvmtiExport::_should_post_class_prepare = false; | |
| 844 bool JvmtiExport::_should_post_class_unload = false; | |
| 845 bool JvmtiExport::_should_post_thread_life = false; | |
| 846 bool JvmtiExport::_should_clean_up_heap_objects = false; | |
| 847 bool JvmtiExport::_should_post_native_method_bind = false; | |
| 848 bool JvmtiExport::_should_post_dynamic_code_generated = false; | |
| 849 bool JvmtiExport::_should_post_data_dump = false; | |
| 850 bool JvmtiExport::_should_post_compiled_method_load = false; | |
| 851 bool JvmtiExport::_should_post_compiled_method_unload = false; | |
| 852 bool JvmtiExport::_should_post_monitor_contended_enter = false; | |
| 853 bool JvmtiExport::_should_post_monitor_contended_entered = false; | |
| 854 bool JvmtiExport::_should_post_monitor_wait = false; | |
| 855 bool JvmtiExport::_should_post_monitor_waited = false; | |
| 856 bool JvmtiExport::_should_post_garbage_collection_start = false; | |
| 857 bool JvmtiExport::_should_post_garbage_collection_finish = false; | |
| 858 bool JvmtiExport::_should_post_object_free = false; | |
| 859 bool JvmtiExport::_should_post_resource_exhausted = false; | |
| 860 bool JvmtiExport::_should_post_vm_object_alloc = false; | |
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861 bool JvmtiExport::_should_post_on_exceptions = false; |
| 0 | 862 |
| 863 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 864 | |
| 865 | |
| 866 // | |
| 867 // JVMTI single step management | |
| 868 // | |
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869 void JvmtiExport::at_single_stepping_point(JavaThread *thread, Method* method, address location) { |
| 0 | 870 assert(JvmtiExport::should_post_single_step(), "must be single stepping"); |
| 871 | |
| 872 HandleMark hm(thread); | |
| 873 methodHandle mh(thread, method); | |
| 874 | |
| 875 // update information about current location and post a step event | |
| 876 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 877 if (state == NULL) { | |
| 878 return; | |
| 879 } | |
| 880 EVT_TRIG_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Trg Single Step triggered", | |
| 881 JvmtiTrace::safe_get_thread_name(thread))); | |
| 882 if (!state->hide_single_stepping()) { | |
| 883 if (state->is_pending_step_for_popframe()) { | |
| 884 state->process_pending_step_for_popframe(); | |
| 885 } | |
| 886 if (state->is_pending_step_for_earlyret()) { | |
| 887 state->process_pending_step_for_earlyret(); | |
| 888 } | |
| 889 JvmtiExport::post_single_step(thread, mh(), location); | |
| 890 } | |
| 891 } | |
| 892 | |
| 893 | |
| 894 void JvmtiExport::expose_single_stepping(JavaThread *thread) { | |
| 895 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 896 if (state != NULL) { | |
| 897 state->clear_hide_single_stepping(); | |
| 898 } | |
| 899 } | |
| 900 | |
| 901 | |
| 902 bool JvmtiExport::hide_single_stepping(JavaThread *thread) { | |
| 903 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 904 if (state != NULL && state->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 905 state->set_hide_single_stepping(); | |
| 906 return true; | |
| 907 } else { | |
| 908 return false; | |
| 909 } | |
| 910 } | |
| 911 | |
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912 void JvmtiExport::post_class_load(JavaThread *thread, Klass* klass) { |
| 0 | 913 HandleMark hm(thread); |
| 914 KlassHandle kh(thread, klass); | |
| 915 | |
| 916 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Trg Class Load triggered", | |
| 917 JvmtiTrace::safe_get_thread_name(thread))); | |
| 918 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 919 if (state == NULL) { | |
| 920 return; | |
| 921 } | |
| 922 JvmtiEnvThreadStateIterator it(state); | |
| 923 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 924 if (ets->is_enabled(JVMTI_EVENT_CLASS_LOAD)) { | |
| 925 EVT_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Evt Class Load sent %s", | |
| 926 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 927 kh()==NULL? "NULL" : kh()->external_name() )); |
| 0 | 928 |
| 929 JvmtiEnv *env = ets->get_env(); | |
| 930 JvmtiClassEventMark jem(thread, kh()); | |
| 931 JvmtiJavaThreadEventTransition jet(thread); | |
| 932 jvmtiEventClassLoad callback = env->callbacks()->ClassLoad; | |
| 933 if (callback != NULL) { | |
| 934 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 935 } | |
| 936 } | |
| 937 } | |
| 938 } | |
| 939 | |
| 940 | |
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941 void JvmtiExport::post_class_prepare(JavaThread *thread, Klass* klass) { |
| 0 | 942 HandleMark hm(thread); |
| 943 KlassHandle kh(thread, klass); | |
| 944 | |
| 945 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Trg Class Prepare triggered", | |
| 946 JvmtiTrace::safe_get_thread_name(thread))); | |
| 947 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 948 if (state == NULL) { | |
| 949 return; | |
| 950 } | |
| 951 JvmtiEnvThreadStateIterator it(state); | |
| 952 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 953 if (ets->is_enabled(JVMTI_EVENT_CLASS_PREPARE)) { | |
| 954 EVT_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Evt Class Prepare sent %s", | |
| 955 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 956 kh()==NULL? "NULL" : kh()->external_name() )); |
| 0 | 957 |
| 958 JvmtiEnv *env = ets->get_env(); | |
| 959 JvmtiClassEventMark jem(thread, kh()); | |
| 960 JvmtiJavaThreadEventTransition jet(thread); | |
| 961 jvmtiEventClassPrepare callback = env->callbacks()->ClassPrepare; | |
| 962 if (callback != NULL) { | |
| 963 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 964 } | |
| 965 } | |
| 966 } | |
| 967 } | |
| 968 | |
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969 void JvmtiExport::post_class_unload(Klass* klass) { |
| 0 | 970 Thread *thread = Thread::current(); |
| 971 HandleMark hm(thread); | |
| 972 KlassHandle kh(thread, klass); | |
| 973 | |
| 974 EVT_TRIG_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Trg Class Unload triggered" )); | |
| 975 if (JvmtiEventController::is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 976 assert(thread->is_VM_thread(), "wrong thread"); | |
| 977 | |
| 978 // get JavaThread for whom we are proxy | |
| 979 JavaThread *real_thread = | |
| 980 (JavaThread *)((VMThread *)thread)->vm_operation()->calling_thread(); | |
| 981 | |
| 982 JvmtiEnvIterator it; | |
| 983 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 984 if (env->is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 985 EVT_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Evt Class Unload sent %s", | |
| 6983 | 986 kh()==NULL? "NULL" : kh()->external_name() )); |
| 0 | 987 |
| 988 // do everything manually, since this is a proxy - needs special care | |
| 989 JNIEnv* jni_env = real_thread->jni_environment(); | |
| 990 jthread jt = (jthread)JNIHandles::make_local(real_thread, real_thread->threadObj()); | |
| 6983 | 991 jclass jk = (jclass)JNIHandles::make_local(real_thread, kh()->java_mirror()); |
| 0 | 992 |
| 993 // Before we call the JVMTI agent, we have to set the state in the | |
| 994 // thread for which we are proxying. | |
| 995 JavaThreadState prev_state = real_thread->thread_state(); | |
| 996 assert(prev_state == _thread_blocked, "JavaThread should be at safepoint"); | |
| 997 real_thread->set_thread_state(_thread_in_native); | |
| 998 | |
| 999 jvmtiExtensionEvent callback = env->ext_callbacks()->ClassUnload; | |
| 1000 if (callback != NULL) { | |
| 1001 (*callback)(env->jvmti_external(), jni_env, jt, jk); | |
| 1002 } | |
| 1003 | |
| 1004 assert(real_thread->thread_state() == _thread_in_native, | |
| 1005 "JavaThread should be in native"); | |
| 1006 real_thread->set_thread_state(prev_state); | |
| 1007 | |
| 1008 JNIHandles::destroy_local(jk); | |
| 1009 JNIHandles::destroy_local(jt); | |
| 1010 } | |
| 1011 } | |
| 1012 } | |
| 1013 } | |
| 1014 | |
| 1015 | |
| 1016 void JvmtiExport::post_thread_start(JavaThread *thread) { | |
| 1017 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1018 | |
| 1019 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Trg Thread Start event triggered", | |
| 1020 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1021 | |
| 1022 // do JVMTI thread initialization (if needed) | |
| 1023 JvmtiEventController::thread_started(thread); | |
| 1024 | |
| 1025 // Do not post thread start event for hidden java thread. | |
| 1026 if (JvmtiEventController::is_enabled(JVMTI_EVENT_THREAD_START) && | |
| 1027 !thread->is_hidden_from_external_view()) { | |
| 1028 JvmtiEnvIterator it; | |
| 1029 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1030 if (env->is_enabled(JVMTI_EVENT_THREAD_START)) { | |
| 1031 EVT_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Evt Thread Start event sent", | |
| 1032 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1033 | |
| 1034 JvmtiThreadEventMark jem(thread); | |
| 1035 JvmtiJavaThreadEventTransition jet(thread); | |
| 1036 jvmtiEventThreadStart callback = env->callbacks()->ThreadStart; | |
| 1037 if (callback != NULL) { | |
| 1038 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1039 } | |
| 1040 } | |
| 1041 } | |
| 1042 } | |
| 1043 } | |
| 1044 | |
| 1045 | |
| 1046 void JvmtiExport::post_thread_end(JavaThread *thread) { | |
| 1047 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Trg Thread End event triggered", | |
| 1048 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1049 | |
| 1050 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1051 if (state == NULL) { | |
| 1052 return; | |
| 1053 } | |
| 1054 | |
| 1055 // Do not post thread end event for hidden java thread. | |
| 1056 if (state->is_enabled(JVMTI_EVENT_THREAD_END) && | |
| 1057 !thread->is_hidden_from_external_view()) { | |
| 1058 | |
| 1059 JvmtiEnvThreadStateIterator it(state); | |
| 1060 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1061 if (ets->is_enabled(JVMTI_EVENT_THREAD_END)) { | |
| 1062 EVT_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Evt Thread End event sent", | |
| 1063 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1064 | |
| 1065 JvmtiEnv *env = ets->get_env(); | |
| 1066 JvmtiThreadEventMark jem(thread); | |
| 1067 JvmtiJavaThreadEventTransition jet(thread); | |
| 1068 jvmtiEventThreadEnd callback = env->callbacks()->ThreadEnd; | |
| 1069 if (callback != NULL) { | |
| 1070 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1071 } | |
| 1072 } | |
| 1073 } | |
| 1074 } | |
| 1075 } | |
| 1076 | |
| 1077 void JvmtiExport::post_object_free(JvmtiEnv* env, jlong tag) { | |
| 1078 assert(SafepointSynchronize::is_at_safepoint(), "must be executed at safepoint"); | |
| 1079 assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE), "checking"); | |
| 1080 | |
| 1081 EVT_TRIG_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Trg Object Free triggered" )); | |
| 1082 EVT_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Evt Object Free sent")); | |
| 1083 | |
| 1084 jvmtiEventObjectFree callback = env->callbacks()->ObjectFree; | |
| 1085 if (callback != NULL) { | |
| 1086 (*callback)(env->jvmti_external(), tag); | |
| 1087 } | |
| 1088 } | |
| 1089 | |
| 1090 void JvmtiExport::post_resource_exhausted(jint resource_exhausted_flags, const char* description) { | |
| 1091 EVT_TRIG_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Trg resource exhausted event triggered" )); | |
| 1092 | |
| 1093 JvmtiEnvIterator it; | |
| 1094 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1095 if (env->is_enabled(JVMTI_EVENT_RESOURCE_EXHAUSTED)) { | |
| 1096 EVT_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Evt resource exhausted event sent" )); | |
| 1097 | |
| 1098 JavaThread *thread = JavaThread::current(); | |
| 1099 JvmtiThreadEventMark jem(thread); | |
| 1100 JvmtiJavaThreadEventTransition jet(thread); | |
| 1101 jvmtiEventResourceExhausted callback = env->callbacks()->ResourceExhausted; | |
| 1102 if (callback != NULL) { | |
| 1103 (*callback)(env->jvmti_external(), jem.jni_env(), | |
| 1104 resource_exhausted_flags, NULL, description); | |
| 1105 } | |
| 1106 } | |
| 1107 } | |
| 1108 } | |
| 1109 | |
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1110 void JvmtiExport::post_method_entry(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1111 HandleMark hm(thread); |
| 1112 methodHandle mh(thread, method); | |
| 1113 | |
| 1114 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Trg Method Entry triggered %s.%s", | |
| 1115 JvmtiTrace::safe_get_thread_name(thread), | |
| 1116 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1117 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1118 | |
| 1119 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 1120 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1121 // for any thread that actually wants method entry, interp_only_mode is set | |
| 1122 return; | |
| 1123 } | |
| 1124 | |
| 1125 state->incr_cur_stack_depth(); | |
| 1126 | |
| 1127 if (state->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1128 JvmtiEnvThreadStateIterator it(state); | |
| 1129 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1130 if (ets->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1131 EVT_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Evt Method Entry sent %s.%s", | |
| 1132 JvmtiTrace::safe_get_thread_name(thread), | |
| 1133 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1134 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1135 | |
| 1136 JvmtiEnv *env = ets->get_env(); | |
| 1137 JvmtiMethodEventMark jem(thread, mh); | |
| 1138 JvmtiJavaThreadEventTransition jet(thread); | |
| 1139 jvmtiEventMethodEntry callback = env->callbacks()->MethodEntry; | |
| 1140 if (callback != NULL) { | |
| 1141 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_methodID()); | |
| 1142 } | |
| 1143 } | |
| 1144 } | |
| 1145 } | |
| 1146 } | |
| 1147 | |
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1148 void JvmtiExport::post_method_exit(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1149 HandleMark hm(thread); |
| 1150 methodHandle mh(thread, method); | |
| 1151 | |
| 1152 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Trg Method Exit triggered %s.%s", | |
| 1153 JvmtiTrace::safe_get_thread_name(thread), | |
| 1154 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1155 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1156 | |
| 1157 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1158 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1159 // for any thread that actually wants method exit, interp_only_mode is set | |
| 1160 return; | |
| 1161 } | |
| 1162 | |
| 1163 // return a flag when a method terminates by throwing an exception | |
| 1164 // i.e. if an exception is thrown and it's not caught by the current method | |
| 1165 bool exception_exit = state->is_exception_detected() && !state->is_exception_caught(); | |
| 1166 | |
| 1167 | |
| 1168 if (state->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1169 Handle result; | |
| 1170 jvalue value; | |
| 1171 value.j = 0L; | |
| 1172 | |
| 1173 // if the method hasn't been popped because of an exception then we populate | |
| 1174 // the return_value parameter for the callback. At this point we only have | |
| 1175 // the address of a "raw result" and we just call into the interpreter to | |
| 1176 // convert this into a jvalue. | |
| 1177 if (!exception_exit) { | |
| 1178 oop oop_result; | |
| 1179 BasicType type = current_frame.interpreter_frame_result(&oop_result, &value); | |
| 1180 if (type == T_OBJECT || type == T_ARRAY) { | |
| 1181 result = Handle(thread, oop_result); | |
| 1182 } | |
| 1183 } | |
| 1184 | |
| 1185 JvmtiEnvThreadStateIterator it(state); | |
| 1186 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1187 if (ets->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1188 EVT_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Evt Method Exit sent %s.%s", | |
| 1189 JvmtiTrace::safe_get_thread_name(thread), | |
| 1190 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1191 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1192 | |
| 1193 JvmtiEnv *env = ets->get_env(); | |
| 1194 JvmtiMethodEventMark jem(thread, mh); | |
| 1195 if (result.not_null()) { | |
| 1196 value.l = JNIHandles::make_local(thread, result()); | |
| 1197 } | |
| 1198 JvmtiJavaThreadEventTransition jet(thread); | |
| 1199 jvmtiEventMethodExit callback = env->callbacks()->MethodExit; | |
| 1200 if (callback != NULL) { | |
| 1201 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1202 jem.jni_methodID(), exception_exit, value); | |
| 1203 } | |
| 1204 } | |
| 1205 } | |
| 1206 } | |
| 1207 | |
| 1208 if (state->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1209 JvmtiEnvThreadStateIterator it(state); | |
| 1210 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1211 int cur_frame_number = state->cur_stack_depth(); | |
| 1212 | |
| 1213 if (ets->is_frame_pop(cur_frame_number)) { | |
| 1214 // we have a NotifyFramePop entry for this frame. | |
| 1215 // now check that this env/thread wants this event | |
| 1216 if (ets->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1217 EVT_TRACE(JVMTI_EVENT_FRAME_POP, ("JVMTI [%s] Evt Frame Pop sent %s.%s", | |
| 1218 JvmtiTrace::safe_get_thread_name(thread), | |
| 1219 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1220 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1221 | |
| 1222 // we also need to issue a frame pop event for this frame | |
| 1223 JvmtiEnv *env = ets->get_env(); | |
| 1224 JvmtiMethodEventMark jem(thread, mh); | |
| 1225 JvmtiJavaThreadEventTransition jet(thread); | |
| 1226 jvmtiEventFramePop callback = env->callbacks()->FramePop; | |
| 1227 if (callback != NULL) { | |
| 1228 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1229 jem.jni_methodID(), exception_exit); | |
| 1230 } | |
| 1231 } | |
| 1232 // remove the frame's entry | |
| 1233 ets->clear_frame_pop(cur_frame_number); | |
| 1234 } | |
| 1235 } | |
| 1236 } | |
| 1237 | |
| 1238 state->decr_cur_stack_depth(); | |
| 1239 } | |
| 1240 | |
| 1241 | |
| 1242 // Todo: inline this for optimization | |
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1243 void JvmtiExport::post_single_step(JavaThread *thread, Method* method, address location) { |
| 0 | 1244 HandleMark hm(thread); |
| 1245 methodHandle mh(thread, method); | |
| 1246 | |
| 1247 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1248 if (state == NULL) { | |
| 1249 return; | |
| 1250 } | |
| 1251 JvmtiEnvThreadStateIterator it(state); | |
| 1252 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1253 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_SINGLE_STEP); | |
| 1254 if (!ets->single_stepping_posted() && ets->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 1255 EVT_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Evt Single Step sent %s.%s @ %d", | |
| 1256 JvmtiTrace::safe_get_thread_name(thread), | |
| 1257 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1258 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1259 location - mh()->code_base() )); | |
| 1260 | |
| 1261 JvmtiEnv *env = ets->get_env(); | |
| 1262 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1263 JvmtiJavaThreadEventTransition jet(thread); | |
| 1264 jvmtiEventSingleStep callback = env->callbacks()->SingleStep; | |
| 1265 if (callback != NULL) { | |
| 1266 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1267 jem.jni_methodID(), jem.location()); | |
| 1268 } | |
| 1269 | |
| 1270 ets->set_single_stepping_posted(); | |
| 1271 } | |
| 1272 } | |
| 1273 } | |
| 1274 | |
| 1275 | |
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1276 void JvmtiExport::post_exception_throw(JavaThread *thread, Method* method, address location, oop exception) { |
| 0 | 1277 HandleMark hm(thread); |
| 1278 methodHandle mh(thread, method); | |
| 1279 Handle exception_handle(thread, exception); | |
| 1280 | |
| 1281 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1282 if (state == NULL) { | |
| 1283 return; | |
| 1284 } | |
| 1285 | |
| 1286 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION, ("JVMTI [%s] Trg Exception thrown triggered", | |
| 1287 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1288 if (!state->is_exception_detected()) { | |
| 1289 state->set_exception_detected(); | |
| 1290 JvmtiEnvThreadStateIterator it(state); | |
| 1291 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1292 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION) && (exception != NULL)) { | |
| 1293 | |
| 1294 EVT_TRACE(JVMTI_EVENT_EXCEPTION, | |
| 1295 ("JVMTI [%s] Evt Exception thrown sent %s.%s @ %d", | |
| 1296 JvmtiTrace::safe_get_thread_name(thread), | |
| 1297 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1298 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1299 location - mh()->code_base() )); | |
| 1300 | |
| 1301 JvmtiEnv *env = ets->get_env(); | |
| 1302 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1303 | |
| 1304 // It's okay to clear these exceptions here because we duplicate | |
| 1305 // this lookup in InterpreterRuntime::exception_handler_for_exception. | |
| 1306 EXCEPTION_MARK; | |
| 1307 | |
| 1308 bool should_repeat; | |
| 1309 vframeStream st(thread); | |
| 1310 assert(!st.at_end(), "cannot be at end"); | |
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1311 Method* current_method = NULL; |
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1312 // A GC may occur during the Method::fast_exception_handler_bci_for() |
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1313 // call below if it needs to load the constraint class. Using a |
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1314 // methodHandle to keep the 'current_method' from being deallocated |
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1315 // if GC happens. |
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1316 methodHandle current_mh = methodHandle(thread, current_method); |
| 0 | 1317 int current_bci = -1; |
| 1318 do { | |
| 1319 current_method = st.method(); | |
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1320 current_mh = methodHandle(thread, current_method); |
| 0 | 1321 current_bci = st.bci(); |
| 1322 do { | |
| 1323 should_repeat = false; | |
| 1324 KlassHandle eh_klass(thread, exception_handle()->klass()); | |
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1325 current_bci = Method::fast_exception_handler_bci_for( |
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1326 current_mh, eh_klass, current_bci, THREAD); |
| 0 | 1327 if (HAS_PENDING_EXCEPTION) { |
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1328 exception_handle = Handle(thread, PENDING_EXCEPTION); |
| 0 | 1329 CLEAR_PENDING_EXCEPTION; |
| 1330 should_repeat = true; | |
| 1331 } | |
| 1332 } while (should_repeat && (current_bci != -1)); | |
| 1333 st.next(); | |
| 1334 } while ((current_bci < 0) && (!st.at_end())); | |
| 1335 | |
| 1336 jmethodID catch_jmethodID; | |
| 1337 if (current_bci < 0) { | |
| 1338 catch_jmethodID = 0; | |
| 1339 current_bci = 0; | |
| 1340 } else { | |
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1341 catch_jmethodID = jem.to_jmethodID(current_mh); |
| 0 | 1342 } |
| 1343 | |
| 1344 JvmtiJavaThreadEventTransition jet(thread); | |
| 1345 jvmtiEventException callback = env->callbacks()->Exception; | |
| 1346 if (callback != NULL) { | |
| 1347 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1348 jem.jni_methodID(), jem.location(), | |
| 1349 jem.exception(), | |
| 1350 catch_jmethodID, current_bci); | |
| 1351 } | |
| 1352 } | |
| 1353 } | |
| 1354 } | |
| 1355 | |
| 1356 // frames may get popped because of this throw, be safe - invalidate cached depth | |
| 1357 state->invalidate_cur_stack_depth(); | |
| 1358 } | |
| 1359 | |
| 1360 | |
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1361 void JvmtiExport::notice_unwind_due_to_exception(JavaThread *thread, Method* method, address location, oop exception, bool in_handler_frame) { |
| 0 | 1362 HandleMark hm(thread); |
| 1363 methodHandle mh(thread, method); | |
| 1364 Handle exception_handle(thread, exception); | |
| 1365 | |
| 1366 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1367 if (state == NULL) { | |
| 1368 return; | |
| 1369 } | |
| 1370 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1371 ("JVMTI [%s] Trg unwind_due_to_exception triggered %s.%s @ %s%d - %s", | |
| 1372 JvmtiTrace::safe_get_thread_name(thread), | |
| 1373 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1374 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1375 location==0? "no location:" : "", | |
| 1376 location==0? 0 : location - mh()->code_base(), | |
| 1377 in_handler_frame? "in handler frame" : "not handler frame" )); | |
| 1378 | |
| 1379 if (state->is_exception_detected()) { | |
| 1380 | |
| 1381 state->invalidate_cur_stack_depth(); | |
| 1382 if (!in_handler_frame) { | |
| 1383 // Not in exception handler. | |
| 1384 if(state->is_interp_only_mode()) { | |
| 1385 // method exit and frame pop events are posted only in interp mode. | |
| 1386 // When these events are enabled code should be in running in interp mode. | |
| 1387 JvmtiExport::post_method_exit(thread, method, thread->last_frame()); | |
| 1388 // The cached cur_stack_depth might have changed from the | |
| 1389 // operations of frame pop or method exit. We are not 100% sure | |
| 1390 // the cached cur_stack_depth is still valid depth so invalidate | |
| 1391 // it. | |
| 1392 state->invalidate_cur_stack_depth(); | |
| 1393 } | |
| 1394 } else { | |
| 1395 // In exception handler frame. Report exception catch. | |
| 1396 assert(location != NULL, "must be a known location"); | |
| 1397 // Update cur_stack_depth - the frames above the current frame | |
| 1398 // have been unwound due to this exception: | |
| 1399 assert(!state->is_exception_caught(), "exception must not be caught yet."); | |
| 1400 state->set_exception_caught(); | |
| 1401 | |
| 1402 JvmtiEnvThreadStateIterator it(state); | |
| 1403 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1404 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION_CATCH) && (exception_handle() != NULL)) { | |
| 1405 EVT_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1406 ("JVMTI [%s] Evt ExceptionCatch sent %s.%s @ %d", | |
| 1407 JvmtiTrace::safe_get_thread_name(thread), | |
| 1408 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1409 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1410 location - mh()->code_base() )); | |
| 1411 | |
| 1412 JvmtiEnv *env = ets->get_env(); | |
| 1413 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1414 JvmtiJavaThreadEventTransition jet(thread); | |
| 1415 jvmtiEventExceptionCatch callback = env->callbacks()->ExceptionCatch; | |
| 1416 if (callback != NULL) { | |
| 1417 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1418 jem.jni_methodID(), jem.location(), | |
| 1419 jem.exception()); | |
| 1420 } | |
| 1421 } | |
| 1422 } | |
| 1423 } | |
| 1424 } | |
| 1425 } | |
| 1426 | |
| 1427 oop JvmtiExport::jni_GetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1428 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1429 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1430 // At least one field access watch is set so we have more work | |
| 1431 // to do. This wrapper is used by entry points that allow us | |
| 1432 // to create handles in post_field_access_by_jni(). | |
| 1433 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1434 // event posting can block so refetch oop if we were passed a jobj | |
| 1435 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1436 } | |
| 1437 return obj; | |
| 1438 } | |
| 1439 | |
| 1440 oop JvmtiExport::jni_GetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
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1441 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1442 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1443 // At least one field access watch is set so we have more work | |
| 1444 // to do. This wrapper is used by "quick" entry points that don't | |
| 1445 // allow us to create handles in post_field_access_by_jni(). We | |
| 1446 // override that with a ResetNoHandleMark. | |
| 1447 ResetNoHandleMark rnhm; | |
| 1448 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1449 // event posting can block so refetch oop if we were passed a jobj | |
| 1450 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1451 } | |
| 1452 return obj; | |
| 1453 } | |
| 1454 | |
| 1455 void JvmtiExport::post_field_access_by_jni(JavaThread *thread, oop obj, | |
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1456 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1457 // We must be called with a Java context in order to provide reasonable |
| 1458 // values for the klazz, method, and location fields. The callers of this | |
| 1459 // function don't make the call unless there is a Java context. | |
| 1460 assert(thread->has_last_Java_frame(), "must be called with a Java context"); | |
| 1461 | |
| 1462 ResourceMark rm; | |
| 1463 fieldDescriptor fd; | |
| 1464 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1465 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1466 assert(valid_fieldID == true,"post_field_access_by_jni called with invalid fieldID"); | |
| 1467 if (!valid_fieldID) return; | |
| 1468 // field accesses are not watched so bail | |
| 1469 if (!fd.is_field_access_watched()) return; | |
| 1470 | |
| 1471 HandleMark hm(thread); | |
| 1472 KlassHandle h_klass(thread, klass); | |
| 1473 Handle h_obj; | |
| 1474 if (!is_static) { | |
| 1475 // non-static field accessors have an object, but we need a handle | |
| 1476 assert(obj != NULL, "non-static needs an object"); | |
| 1477 h_obj = Handle(thread, obj); | |
| 1478 } | |
| 1479 post_field_access(thread, | |
| 1480 thread->last_frame().interpreter_frame_method(), | |
| 1481 thread->last_frame().interpreter_frame_bcp(), | |
| 1482 h_klass, h_obj, fieldID); | |
| 1483 } | |
| 1484 | |
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1485 void JvmtiExport::post_field_access(JavaThread *thread, Method* method, |
| 0 | 1486 address location, KlassHandle field_klass, Handle object, jfieldID field) { |
| 1487 | |
| 1488 HandleMark hm(thread); | |
| 1489 methodHandle mh(thread, method); | |
| 1490 | |
| 1491 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1492 if (state == NULL) { | |
| 1493 return; | |
| 1494 } | |
| 1495 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Trg Field Access event triggered", | |
| 1496 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1497 JvmtiEnvThreadStateIterator it(state); | |
| 1498 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1499 if (ets->is_enabled(JVMTI_EVENT_FIELD_ACCESS)) { | |
| 1500 EVT_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Evt Field Access event sent %s.%s @ %d", | |
| 1501 JvmtiTrace::safe_get_thread_name(thread), | |
| 1502 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1503 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1504 location - mh()->code_base() )); | |
| 1505 | |
| 1506 JvmtiEnv *env = ets->get_env(); | |
| 1507 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1508 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1509 jobject field_jobject = jem.to_jobject(object()); | |
| 1510 JvmtiJavaThreadEventTransition jet(thread); | |
| 1511 jvmtiEventFieldAccess callback = env->callbacks()->FieldAccess; | |
| 1512 if (callback != NULL) { | |
| 1513 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1514 jem.jni_methodID(), jem.location(), | |
| 1515 field_jclass, field_jobject, field); | |
| 1516 } | |
| 1517 } | |
| 1518 } | |
| 1519 } | |
| 1520 | |
| 1521 oop JvmtiExport::jni_SetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1522 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1523 char sig_type, jvalue *value) { |
| 1524 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1525 // At least one field modification watch is set so we have more work | |
| 1526 // to do. This wrapper is used by entry points that allow us | |
| 1527 // to create handles in post_field_modification_by_jni(). | |
| 1528 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1529 // event posting can block so refetch oop if we were passed a jobj | |
| 1530 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1531 } | |
| 1532 return obj; | |
| 1533 } | |
| 1534 | |
| 1535 oop JvmtiExport::jni_SetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
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1536 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1537 char sig_type, jvalue *value) { |
| 1538 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1539 // At least one field modification watch is set so we have more work | |
| 1540 // to do. This wrapper is used by "quick" entry points that don't | |
| 1541 // allow us to create handles in post_field_modification_by_jni(). We | |
| 1542 // override that with a ResetNoHandleMark. | |
| 1543 ResetNoHandleMark rnhm; | |
| 1544 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1545 // event posting can block so refetch oop if we were passed a jobj | |
| 1546 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1547 } | |
| 1548 return obj; | |
| 1549 } | |
| 1550 | |
| 1551 void JvmtiExport::post_field_modification_by_jni(JavaThread *thread, oop obj, | |
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1552 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1553 char sig_type, jvalue *value) { |
| 1554 // We must be called with a Java context in order to provide reasonable | |
| 1555 // values for the klazz, method, and location fields. The callers of this | |
| 1556 // function don't make the call unless there is a Java context. | |
| 1557 assert(thread->has_last_Java_frame(), "must be called with Java context"); | |
| 1558 | |
| 1559 ResourceMark rm; | |
| 1560 fieldDescriptor fd; | |
| 1561 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1562 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1563 assert(valid_fieldID == true,"post_field_modification_by_jni called with invalid fieldID"); | |
| 1564 if (!valid_fieldID) return; | |
| 1565 // field modifications are not watched so bail | |
| 1566 if (!fd.is_field_modification_watched()) return; | |
| 1567 | |
| 1568 HandleMark hm(thread); | |
| 1569 | |
| 1570 Handle h_obj; | |
| 1571 if (!is_static) { | |
| 1572 // non-static field accessors have an object, but we need a handle | |
| 1573 assert(obj != NULL, "non-static needs an object"); | |
| 1574 h_obj = Handle(thread, obj); | |
| 1575 } | |
| 1576 KlassHandle h_klass(thread, klass); | |
| 1577 post_field_modification(thread, | |
| 1578 thread->last_frame().interpreter_frame_method(), | |
| 1579 thread->last_frame().interpreter_frame_bcp(), | |
| 1580 h_klass, h_obj, fieldID, sig_type, value); | |
| 1581 } | |
| 1582 | |
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1583 void JvmtiExport::post_raw_field_modification(JavaThread *thread, Method* method, |
| 0 | 1584 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1585 char sig_type, jvalue *value) { | |
| 1586 | |
| 1587 if (sig_type == 'I' || sig_type == 'Z' || sig_type == 'C' || sig_type == 'S') { | |
| 1588 // 'I' instructions are used for byte, char, short and int. | |
| 1589 // determine which it really is, and convert | |
| 1590 fieldDescriptor fd; | |
| 1591 bool found = JvmtiEnv::get_field_descriptor(field_klass(), field, &fd); | |
| 1592 // should be found (if not, leave as is) | |
| 1593 if (found) { | |
| 1594 jint ival = value->i; | |
| 1595 // convert value from int to appropriate type | |
| 1596 switch (fd.field_type()) { | |
| 1597 case T_BOOLEAN: | |
| 1598 sig_type = 'Z'; | |
| 1599 value->i = 0; // clear it | |
| 1600 value->z = (jboolean)ival; | |
| 1601 break; | |
| 1602 case T_BYTE: | |
| 1603 sig_type = 'B'; | |
| 1604 value->i = 0; // clear it | |
| 1605 value->b = (jbyte)ival; | |
| 1606 break; | |
| 1607 case T_CHAR: | |
| 1608 sig_type = 'C'; | |
| 1609 value->i = 0; // clear it | |
| 1610 value->c = (jchar)ival; | |
| 1611 break; | |
| 1612 case T_SHORT: | |
| 1613 sig_type = 'S'; | |
| 1614 value->i = 0; // clear it | |
| 1615 value->s = (jshort)ival; | |
| 1616 break; | |
| 1617 case T_INT: | |
| 1618 // nothing to do | |
| 1619 break; | |
| 1620 default: | |
| 1621 // this is an integer instruction, should be one of above | |
| 1622 ShouldNotReachHere(); | |
| 1623 break; | |
| 1624 } | |
| 1625 } | |
| 1626 } | |
| 1627 | |
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1628 assert(sig_type != '[', "array should have sig_type == 'L'"); |
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1629 bool handle_created = false; |
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1630 |
| 0 | 1631 // convert oop to JNI handle. |
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1632 if (sig_type == 'L') { |
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1633 handle_created = true; |
| 0 | 1634 value->l = (jobject)JNIHandles::make_local(thread, (oop)value->l); |
| 1635 } | |
| 1636 | |
| 1637 post_field_modification(thread, method, location, field_klass, object, field, sig_type, value); | |
| 1638 | |
| 1639 // Destroy the JNI handle allocated above. | |
|
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1640 if (handle_created) { |
| 0 | 1641 JNIHandles::destroy_local(value->l); |
| 1642 } | |
| 1643 } | |
| 1644 | |
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1645 void JvmtiExport::post_field_modification(JavaThread *thread, Method* method, |
| 0 | 1646 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1647 char sig_type, jvalue *value_ptr) { | |
| 1648 | |
| 1649 HandleMark hm(thread); | |
| 1650 methodHandle mh(thread, method); | |
| 1651 | |
| 1652 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1653 if (state == NULL) { | |
| 1654 return; | |
| 1655 } | |
| 1656 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1657 ("JVMTI [%s] Trg Field Modification event triggered", | |
| 1658 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1659 | |
| 1660 JvmtiEnvThreadStateIterator it(state); | |
| 1661 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1662 if (ets->is_enabled(JVMTI_EVENT_FIELD_MODIFICATION)) { | |
| 1663 EVT_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1664 ("JVMTI [%s] Evt Field Modification event sent %s.%s @ %d", | |
| 1665 JvmtiTrace::safe_get_thread_name(thread), | |
| 1666 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1667 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1668 location - mh()->code_base() )); | |
| 1669 | |
| 1670 JvmtiEnv *env = ets->get_env(); | |
| 1671 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1672 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1673 jobject field_jobject = jem.to_jobject(object()); | |
| 1674 JvmtiJavaThreadEventTransition jet(thread); | |
| 1675 jvmtiEventFieldModification callback = env->callbacks()->FieldModification; | |
| 1676 if (callback != NULL) { | |
| 1677 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1678 jem.jni_methodID(), jem.location(), | |
| 1679 field_jclass, field_jobject, field, sig_type, *value_ptr); | |
| 1680 } | |
| 1681 } | |
| 1682 } | |
| 1683 } | |
| 1684 | |
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1685 void JvmtiExport::post_native_method_bind(Method* method, address* function_ptr) { |
| 0 | 1686 JavaThread* thread = JavaThread::current(); |
| 1687 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1688 | |
| 1689 HandleMark hm(thread); | |
| 1690 methodHandle mh(thread, method); | |
| 1691 | |
| 1692 EVT_TRIG_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Trg Native Method Bind event triggered", | |
| 1693 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1694 | |
| 1695 if (JvmtiEventController::is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1696 JvmtiEnvIterator it; | |
| 1697 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1698 if (env->is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1699 EVT_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Evt Native Method Bind event sent", | |
| 1700 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1701 | |
| 1702 JvmtiMethodEventMark jem(thread, mh); | |
| 1703 JvmtiJavaThreadEventTransition jet(thread); | |
| 1704 JNIEnv* jni_env = JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL? NULL : jem.jni_env(); | |
| 1705 jvmtiEventNativeMethodBind callback = env->callbacks()->NativeMethodBind; | |
| 1706 if (callback != NULL) { | |
| 1707 (*callback)(env->jvmti_external(), jni_env, jem.jni_thread(), | |
| 1708 jem.jni_methodID(), (void*)(*function_ptr), (void**)function_ptr); | |
| 1709 } | |
| 1710 } | |
| 1711 } | |
| 1712 } | |
| 1713 } | |
| 1714 | |
|
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1715 // Returns a record containing inlining information for the given nmethod |
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1716 jvmtiCompiledMethodLoadInlineRecord* create_inline_record(nmethod* nm) { |
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1717 jint numstackframes = 0; |
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1718 jvmtiCompiledMethodLoadInlineRecord* record = (jvmtiCompiledMethodLoadInlineRecord*)NEW_RESOURCE_OBJ(jvmtiCompiledMethodLoadInlineRecord); |
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1719 record->header.kind = JVMTI_CMLR_INLINE_INFO; |
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1720 record->header.next = NULL; |
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1721 record->header.majorinfoversion = JVMTI_CMLR_MAJOR_VERSION_1; |
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1722 record->header.minorinfoversion = JVMTI_CMLR_MINOR_VERSION_0; |
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1723 record->numpcs = 0; |
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1724 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1725 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1726 record->numpcs++; |
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1727 } |
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1728 record->pcinfo = (PCStackInfo*)(NEW_RESOURCE_ARRAY(PCStackInfo, record->numpcs)); |
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1729 int scope = 0; |
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1730 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1731 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1732 void* pc_address = (void*)p->real_pc(nm); |
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1733 assert(pc_address != NULL, "pc_address must be non-null"); |
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1734 record->pcinfo[scope].pc = pc_address; |
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1735 numstackframes=0; |
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1736 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1737 numstackframes++; |
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1738 } |
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1739 assert(numstackframes != 0, "numstackframes must be nonzero."); |
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1740 record->pcinfo[scope].methods = (jmethodID *)NEW_RESOURCE_ARRAY(jmethodID, numstackframes); |
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1741 record->pcinfo[scope].bcis = (jint *)NEW_RESOURCE_ARRAY(jint, numstackframes); |
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1742 record->pcinfo[scope].numstackframes = numstackframes; |
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1743 int stackframe = 0; |
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1744 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1745 // 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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1746 assert(sd->method() != NULL, "sd->method() cannot be null."); |
|
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1747 record->pcinfo[scope].methods[stackframe] = sd->method()->jmethod_id(); |
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1748 record->pcinfo[scope].bcis[stackframe] = sd->bci(); |
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1749 stackframe++; |
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1750 } |
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1751 scope++; |
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1752 } |
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1753 return record; |
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1754 } |
| 0 | 1755 |
| 1756 void JvmtiExport::post_compiled_method_load(nmethod *nm) { | |
| 1757 JavaThread* thread = JavaThread::current(); | |
| 1758 | |
| 1759 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1760 ("JVMTI [%s] method compile load event triggered", | |
| 1761 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1762 | |
| 1763 JvmtiEnvIterator it; | |
| 1764 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1765 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1766 | |
| 1767 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1768 ("JVMTI [%s] class compile method load event sent %s.%s ", | |
| 1769 JvmtiTrace::safe_get_thread_name(thread), | |
| 1770 (nm->method() == NULL) ? "NULL" : nm->method()->klass_name()->as_C_string(), | |
| 1771 (nm->method() == NULL) ? "NULL" : nm->method()->name()->as_C_string())); | |
| 1772 ResourceMark rm(thread); | |
|
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1773 HandleMark hm(thread); |
|
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1774 |
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1775 // Add inlining information |
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1776 jvmtiCompiledMethodLoadInlineRecord* inlinerecord = create_inline_record(nm); |
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1777 // Pass inlining information through the void pointer |
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1778 JvmtiCompiledMethodLoadEventMark jem(thread, nm, inlinerecord); |
| 0 | 1779 JvmtiJavaThreadEventTransition jet(thread); |
| 1780 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1781 if (callback != NULL) { | |
| 1782 (*callback)(env->jvmti_external(), jem.jni_methodID(), | |
| 1783 jem.code_size(), jem.code_data(), jem.map_length(), | |
| 1784 jem.map(), jem.compile_info()); | |
| 1785 } | |
| 1786 } | |
| 1787 } | |
| 1788 } | |
| 1789 | |
| 1790 | |
| 1791 // post a COMPILED_METHOD_LOAD event for a given environment | |
| 1792 void JvmtiExport::post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length, | |
| 1793 const void *code_begin, const jint map_length, | |
| 1794 const jvmtiAddrLocationMap* map) | |
| 1795 { | |
| 1796 JavaThread* thread = JavaThread::current(); | |
| 1797 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1798 ("JVMTI [%s] method compile load event triggered (by GenerateEvents)", | |
| 1799 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1800 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1801 | |
| 1802 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1803 ("JVMTI [%s] class compile method load event sent (by GenerateEvents), jmethodID=" PTR_FORMAT, | |
| 1804 JvmtiTrace::safe_get_thread_name(thread), method)); | |
| 1805 | |
| 1806 JvmtiEventMark jem(thread); | |
| 1807 JvmtiJavaThreadEventTransition jet(thread); | |
| 1808 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1809 if (callback != NULL) { | |
| 1810 (*callback)(env->jvmti_external(), method, | |
| 1811 length, code_begin, map_length, | |
| 1812 map, NULL); | |
| 1813 } | |
| 1814 } | |
| 1815 } | |
| 1816 | |
| 1817 void JvmtiExport::post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) { | |
|
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1818 assert(name != NULL && name[0] != '\0', "sanity check"); |
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1819 |
| 0 | 1820 JavaThread* thread = JavaThread::current(); |
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1821 // In theory everyone coming thru here is in_vm but we need to be certain |
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1822 // because a callee will do a vm->native transition |
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1823 ThreadInVMfromUnknown __tiv; |
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1824 |
| 0 | 1825 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, |
| 1826 ("JVMTI [%s] method dynamic code generated event triggered", | |
| 1827 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1828 JvmtiEnvIterator it; | |
| 1829 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1830 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1831 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1832 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1833 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1834 JvmtiEventMark jem(thread); | |
| 1835 JvmtiJavaThreadEventTransition jet(thread); | |
| 1836 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1837 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1838 if (callback != NULL) { | |
| 1839 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1840 } | |
| 1841 } | |
| 1842 } | |
| 1843 } | |
| 1844 | |
| 1845 void JvmtiExport::post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) { | |
| 1846 jvmtiPhase phase = JvmtiEnv::get_phase(); | |
| 1847 if (phase == JVMTI_PHASE_PRIMORDIAL || phase == JVMTI_PHASE_START) { | |
| 1848 post_dynamic_code_generated_internal(name, code_begin, code_end); | |
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1849 } else { |
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1850 // It may not be safe to post the event from this thread. Defer all |
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1851 // postings to the service thread so that it can perform them in a safe |
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1852 // context and in-order. |
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1853 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1854 JvmtiDeferredEvent event = JvmtiDeferredEvent::dynamic_code_generated_event( |
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1855 name, code_begin, code_end); |
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1856 JvmtiDeferredEventQueue::enqueue(event); |
| 0 | 1857 } |
| 1858 } | |
| 1859 | |
| 1860 | |
| 1861 // post a DYNAMIC_CODE_GENERATED event for a given environment | |
| 1862 // used by GenerateEvents | |
| 1863 void JvmtiExport::post_dynamic_code_generated(JvmtiEnv* env, const char *name, | |
| 1864 const void *code_begin, const void *code_end) | |
| 1865 { | |
| 1866 JavaThread* thread = JavaThread::current(); | |
| 1867 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1868 ("JVMTI [%s] dynamic code generated event triggered (by GenerateEvents)", | |
| 1869 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1870 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1871 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1872 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1873 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1874 JvmtiEventMark jem(thread); | |
| 1875 JvmtiJavaThreadEventTransition jet(thread); | |
| 1876 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1877 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1878 if (callback != NULL) { | |
| 1879 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1880 } | |
| 1881 } | |
| 1882 } | |
| 1883 | |
| 1884 // post a DynamicCodeGenerated event while holding locks in the VM. | |
| 1885 void JvmtiExport::post_dynamic_code_generated_while_holding_locks(const char* name, | |
| 1886 address code_begin, address code_end) | |
| 1887 { | |
| 1888 // register the stub with the current dynamic code event collector | |
| 1889 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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1890 // state can only be NULL if the current thread is exiting which |
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1891 // should not happen since we're trying to post an event |
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1892 guarantee(state != NULL, "attempt to register stub via an exiting thread"); |
| 0 | 1893 JvmtiDynamicCodeEventCollector* collector = state->get_dynamic_code_event_collector(); |
| 1894 guarantee(collector != NULL, "attempt to register stub without event collector"); | |
| 1895 collector->register_stub(name, code_begin, code_end); | |
| 1896 } | |
| 1897 | |
| 1898 // Collect all the vm internally allocated objects which are visible to java world | |
| 1899 void JvmtiExport::record_vm_internal_object_allocation(oop obj) { | |
| 1900 Thread* thread = ThreadLocalStorage::thread(); | |
| 1901 if (thread != NULL && thread->is_Java_thread()) { | |
| 1902 // Can not take safepoint here. | |
| 1903 No_Safepoint_Verifier no_sfpt; | |
| 1904 // Can not take safepoint here so can not use state_for to get | |
| 1905 // jvmti thread state. | |
| 1906 JvmtiThreadState *state = ((JavaThread*)thread)->jvmti_thread_state(); | |
| 1907 if (state != NULL ) { | |
| 1908 // state is non NULL when VMObjectAllocEventCollector is enabled. | |
| 1909 JvmtiVMObjectAllocEventCollector *collector; | |
| 1910 collector = state->get_vm_object_alloc_event_collector(); | |
| 1911 if (collector != NULL && collector->is_enabled()) { | |
| 1912 // Don't record classes as these will be notified via the ClassLoad | |
| 1913 // event. | |
| 1142 | 1914 if (obj->klass() != SystemDictionary::Class_klass()) { |
| 0 | 1915 collector->record_allocation(obj); |
| 1916 } | |
| 1917 } | |
| 1918 } | |
| 1919 } | |
| 1920 } | |
| 1921 | |
| 1922 void JvmtiExport::post_garbage_collection_finish() { | |
| 1923 Thread *thread = Thread::current(); // this event is posted from VM-Thread. | |
| 1924 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1925 ("JVMTI [%s] garbage collection finish event triggered", | |
| 1926 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1927 JvmtiEnvIterator it; | |
| 1928 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1929 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH)) { | |
| 1930 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1931 ("JVMTI [%s] garbage collection finish event sent ", | |
| 1932 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1933 JvmtiThreadEventTransition jet(thread); | |
| 1934 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1935 jvmtiEventGarbageCollectionFinish callback = env->callbacks()->GarbageCollectionFinish; | |
| 1936 if (callback != NULL) { | |
| 1937 (*callback)(env->jvmti_external()); | |
| 1938 } | |
| 1939 } | |
| 1940 } | |
| 1941 } | |
| 1942 | |
| 1943 void JvmtiExport::post_garbage_collection_start() { | |
| 1944 Thread* thread = Thread::current(); // this event is posted from vm-thread. | |
| 1945 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1946 ("JVMTI [%s] garbage collection start event triggered", | |
| 1947 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1948 JvmtiEnvIterator it; | |
| 1949 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1950 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_START)) { | |
| 1951 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1952 ("JVMTI [%s] garbage collection start event sent ", | |
| 1953 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1954 JvmtiThreadEventTransition jet(thread); | |
| 1955 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1956 jvmtiEventGarbageCollectionStart callback = env->callbacks()->GarbageCollectionStart; | |
| 1957 if (callback != NULL) { | |
| 1958 (*callback)(env->jvmti_external()); | |
| 1959 } | |
| 1960 } | |
| 1961 } | |
| 1962 } | |
| 1963 | |
| 1964 void JvmtiExport::post_data_dump() { | |
| 1965 Thread *thread = Thread::current(); | |
| 1966 EVT_TRIG_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1967 ("JVMTI [%s] data dump request event triggered", | |
| 1968 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1969 JvmtiEnvIterator it; | |
| 1970 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1971 if (env->is_enabled(JVMTI_EVENT_DATA_DUMP_REQUEST)) { | |
| 1972 EVT_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1973 ("JVMTI [%s] data dump request event sent ", | |
| 1974 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1975 JvmtiThreadEventTransition jet(thread); | |
| 1976 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1977 jvmtiEventDataDumpRequest callback = env->callbacks()->DataDumpRequest; | |
| 1978 if (callback != NULL) { | |
| 1979 (*callback)(env->jvmti_external()); | |
| 1980 } | |
| 1981 } | |
| 1982 } | |
| 1983 } | |
| 1984 | |
| 1985 void JvmtiExport::post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 1986 oop object = (oop)obj_mntr->object(); | |
| 1987 if (!ServiceUtil::visible_oop(object)) { | |
| 1988 // Ignore monitor contended enter for vm internal object. | |
| 1989 return; | |
| 1990 } | |
| 1991 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1992 if (state == NULL) { | |
| 1993 return; | |
| 1994 } | |
| 1995 | |
| 1996 HandleMark hm(thread); | |
| 1997 Handle h(thread, object); | |
| 1998 | |
| 1999 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 2000 ("JVMTI [%s] montior contended enter event triggered", | |
| 2001 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2002 | |
| 2003 JvmtiEnvThreadStateIterator it(state); | |
| 2004 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2005 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTER)) { | |
| 2006 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 2007 ("JVMTI [%s] monitor contended enter event sent", | |
| 2008 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2009 JvmtiMonitorEventMark jem(thread, h()); | |
| 2010 JvmtiEnv *env = ets->get_env(); | |
| 2011 JvmtiThreadEventTransition jet(thread); | |
| 2012 jvmtiEventMonitorContendedEnter callback = env->callbacks()->MonitorContendedEnter; | |
| 2013 if (callback != NULL) { | |
| 2014 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2015 } | |
| 2016 } | |
| 2017 } | |
| 2018 } | |
| 2019 | |
| 2020 void JvmtiExport::post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 2021 oop object = (oop)obj_mntr->object(); | |
| 2022 if (!ServiceUtil::visible_oop(object)) { | |
| 2023 // Ignore monitor contended entered for vm internal object. | |
| 2024 return; | |
| 2025 } | |
| 2026 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2027 if (state == NULL) { | |
| 2028 return; | |
| 2029 } | |
| 2030 | |
| 2031 HandleMark hm(thread); | |
| 2032 Handle h(thread, object); | |
| 2033 | |
| 2034 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2035 ("JVMTI [%s] montior contended entered event triggered", | |
| 2036 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2037 | |
| 2038 JvmtiEnvThreadStateIterator it(state); | |
| 2039 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2040 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED)) { | |
| 2041 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2042 ("JVMTI [%s] monitor contended enter event sent", | |
| 2043 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2044 JvmtiMonitorEventMark jem(thread, h()); | |
| 2045 JvmtiEnv *env = ets->get_env(); | |
| 2046 JvmtiThreadEventTransition jet(thread); | |
| 2047 jvmtiEventMonitorContendedEntered callback = env->callbacks()->MonitorContendedEntered; | |
| 2048 if (callback != NULL) { | |
| 2049 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2050 } | |
| 2051 } | |
| 2052 } | |
| 2053 } | |
| 2054 | |
| 2055 void JvmtiExport::post_monitor_wait(JavaThread *thread, oop object, | |
| 2056 jlong timeout) { | |
| 2057 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2058 if (state == NULL) { | |
| 2059 return; | |
| 2060 } | |
| 2061 | |
| 2062 HandleMark hm(thread); | |
| 2063 Handle h(thread, object); | |
| 2064 | |
| 2065 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2066 ("JVMTI [%s] montior wait event triggered", | |
| 2067 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2068 | |
| 2069 JvmtiEnvThreadStateIterator it(state); | |
| 2070 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2071 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAIT)) { | |
| 2072 EVT_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2073 ("JVMTI [%s] monitor wait event sent ", | |
| 2074 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2075 JvmtiMonitorEventMark jem(thread, h()); | |
| 2076 JvmtiEnv *env = ets->get_env(); | |
| 2077 JvmtiThreadEventTransition jet(thread); | |
| 2078 jvmtiEventMonitorWait callback = env->callbacks()->MonitorWait; | |
| 2079 if (callback != NULL) { | |
| 2080 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2081 jem.jni_object(), timeout); | |
| 2082 } | |
| 2083 } | |
| 2084 } | |
| 2085 } | |
| 2086 | |
| 2087 void JvmtiExport::post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) { | |
| 2088 oop object = (oop)obj_mntr->object(); | |
| 2089 if (!ServiceUtil::visible_oop(object)) { | |
| 2090 // Ignore monitor waited for vm internal object. | |
| 2091 return; | |
| 2092 } | |
| 2093 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2094 if (state == NULL) { | |
| 2095 return; | |
| 2096 } | |
| 2097 | |
| 2098 HandleMark hm(thread); | |
| 2099 Handle h(thread, object); | |
| 2100 | |
| 2101 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2102 ("JVMTI [%s] montior waited event triggered", | |
| 2103 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2104 | |
| 2105 JvmtiEnvThreadStateIterator it(state); | |
| 2106 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2107 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAITED)) { | |
| 2108 EVT_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2109 ("JVMTI [%s] monitor waited event sent ", | |
| 2110 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2111 JvmtiMonitorEventMark jem(thread, h()); | |
| 2112 JvmtiEnv *env = ets->get_env(); | |
| 2113 JvmtiThreadEventTransition jet(thread); | |
| 2114 jvmtiEventMonitorWaited callback = env->callbacks()->MonitorWaited; | |
| 2115 if (callback != NULL) { | |
| 2116 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2117 jem.jni_object(), timed_out); | |
| 2118 } | |
| 2119 } | |
| 2120 } | |
| 2121 } | |
| 2122 | |
| 2123 | |
| 2124 void JvmtiExport::post_vm_object_alloc(JavaThread *thread, oop object) { | |
| 2125 EVT_TRIG_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Trg vm object alloc triggered", | |
| 2126 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2127 if (object == NULL) { | |
| 2128 return; | |
| 2129 } | |
| 2130 HandleMark hm(thread); | |
| 2131 Handle h(thread, object); | |
| 2132 JvmtiEnvIterator it; | |
| 2133 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 2134 if (env->is_enabled(JVMTI_EVENT_VM_OBJECT_ALLOC)) { | |
| 2135 EVT_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Evt vmobject alloc sent %s", | |
| 2136 JvmtiTrace::safe_get_thread_name(thread), | |
| 6983 | 2137 object==NULL? "NULL" : java_lang_Class::as_Klass(object)->external_name())); |
| 0 | 2138 |
| 2139 JvmtiVMObjectAllocEventMark jem(thread, h()); | |
| 2140 JvmtiJavaThreadEventTransition jet(thread); | |
| 2141 jvmtiEventVMObjectAlloc callback = env->callbacks()->VMObjectAlloc; | |
| 2142 if (callback != NULL) { | |
| 2143 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2144 jem.jni_jobject(), jem.jni_class(), jem.size()); | |
| 2145 } | |
| 2146 } | |
| 2147 } | |
| 2148 } | |
| 2149 | |
| 2150 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2151 | |
| 2152 void JvmtiExport::cleanup_thread(JavaThread* thread) { | |
| 2153 assert(JavaThread::current() == thread, "thread is not current"); | |
|
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2154 MutexLocker mu(JvmtiThreadState_lock); |
| 0 | 2155 |
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2156 if (thread->jvmti_thread_state() != NULL) { |
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2157 // This has to happen after the thread state is removed, which is |
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2158 // why it is not in post_thread_end_event like its complement |
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2159 // Maybe both these functions should be rolled into the posts? |
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2160 JvmtiEventController::thread_ended(thread); |
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2161 } |
| 0 | 2162 } |
| 2163 | |
|
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2164 void JvmtiExport::clear_detected_exception(JavaThread* thread) { |
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2165 assert(JavaThread::current() == thread, "thread is not current"); |
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2166 |
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2167 JvmtiThreadState* state = thread->jvmti_thread_state(); |
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2168 if (state != NULL) { |
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2169 state->clear_exception_detected(); |
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2170 } |
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2171 } |
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2172 |
| 0 | 2173 void JvmtiExport::oops_do(OopClosure* f) { |
| 2174 JvmtiCurrentBreakpoints::oops_do(f); | |
| 2175 JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(f); | |
| 2176 } | |
| 2177 | |
|
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2178 void JvmtiExport::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f) { |
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2179 JvmtiTagMap::weak_oops_do(is_alive, f); |
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2180 } |
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2181 |
|
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2182 void JvmtiExport::gc_epilogue() { |
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2183 JvmtiCurrentBreakpoints::gc_epilogue(); |
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2184 } |
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2185 |
| 0 | 2186 // Onload raw monitor transition. |
| 2187 void JvmtiExport::transition_pending_onload_raw_monitors() { | |
| 2188 JvmtiPendingMonitors::transition_raw_monitors(); | |
| 2189 } | |
| 2190 | |
| 2191 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2192 | |
| 2193 // type for the Agent_OnAttach entry point | |
| 2194 extern "C" { | |
| 2195 typedef jint (JNICALL *OnAttachEntry_t)(JavaVM*, char *, void *); | |
| 2196 } | |
| 2197 | |
| 2198 jint JvmtiExport::load_agent_library(AttachOperation* op, outputStream* st) { | |
| 2199 char ebuf[1024]; | |
| 2200 char buffer[JVM_MAXPATHLEN]; | |
|
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2201 void* library = NULL; |
| 0 | 2202 jint result = JNI_ERR; |
|
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2203 const char *on_attach_symbols[] = AGENT_ONATTACH_SYMBOLS; |
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2204 size_t num_symbol_entries = ARRAY_SIZE(on_attach_symbols); |
| 0 | 2205 |
| 2206 // get agent name and options | |
| 2207 const char* agent = op->arg(0); | |
| 2208 const char* absParam = op->arg(1); | |
| 2209 const char* options = op->arg(2); | |
| 2210 | |
| 2211 // The abs paramter should be "true" or "false" | |
| 2212 bool is_absolute_path = (absParam != NULL) && (strcmp(absParam,"true")==0); | |
| 2213 | |
|
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2214 // Initially marked as invalid. It will be set to valid if we can find the agent |
|
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2215 AgentLibrary *agent_lib = new AgentLibrary(agent, options, is_absolute_path, NULL); |
| 0 | 2216 |
|
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2217 // Check for statically linked in agent. If not found then if the path is |
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2218 // absolute we attempt to load the library. Otherwise we try to load it |
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2219 // from the standard dll directory. |
| 0 | 2220 |
|
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2221 if (!os::find_builtin_agent(agent_lib, on_attach_symbols, num_symbol_entries)) { |
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2222 if (is_absolute_path) { |
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2223 library = os::dll_load(agent, ebuf, sizeof ebuf); |
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2224 } else { |
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2225 // Try to load the agent from the standard dll directory |
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2226 if (os::dll_build_name(buffer, sizeof(buffer), Arguments::get_dll_dir(), |
|
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2227 agent)) { |
|
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2228 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
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2229 } |
|
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2230 if (library == NULL) { |
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2231 // not found - try local path |
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2232 char ns[1] = {0}; |
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2233 if (os::dll_build_name(buffer, sizeof(buffer), ns, agent)) { |
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2234 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
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2235 } |
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2236 } |
| 0 | 2237 } |
|
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2238 if (library != NULL) { |
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2239 agent_lib->set_os_lib(library); |
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2240 agent_lib->set_valid(); |
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2241 } |
| 0 | 2242 } |
| 2243 // If the library was loaded then we attempt to invoke the Agent_OnAttach | |
| 2244 // function | |
|
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2245 if (agent_lib->valid()) { |
| 0 | 2246 // Lookup the Agent_OnAttach function |
| 2247 OnAttachEntry_t on_attach_entry = NULL; | |
|
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2248 on_attach_entry = CAST_TO_FN_PTR(OnAttachEntry_t, |
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2249 os::find_agent_function(agent_lib, false, on_attach_symbols, num_symbol_entries)); |
| 0 | 2250 if (on_attach_entry == NULL) { |
| 2251 // Agent_OnAttach missing - unload library | |
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2252 if (!agent_lib->is_static_lib()) { |
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2253 os::dll_unload(library); |
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2254 } |
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|
2255 delete agent_lib; |
| 0 | 2256 } else { |
| 2257 // Invoke the Agent_OnAttach function | |
| 2258 JavaThread* THREAD = JavaThread::current(); | |
| 2259 { | |
| 2260 extern struct JavaVM_ main_vm; | |
| 2261 JvmtiThreadEventMark jem(THREAD); | |
| 2262 JvmtiJavaThreadEventTransition jet(THREAD); | |
| 2263 | |
| 2264 result = (*on_attach_entry)(&main_vm, (char*)options, NULL); | |
| 2265 } | |
| 2266 | |
| 2267 // Agent_OnAttach may have used JNI | |
| 2268 if (HAS_PENDING_EXCEPTION) { | |
| 2269 CLEAR_PENDING_EXCEPTION; | |
| 2270 } | |
| 2271 | |
| 2272 // If OnAttach returns JNI_OK then we add it to the list of | |
| 2273 // agent libraries so that we can call Agent_OnUnload later. | |
| 2274 if (result == JNI_OK) { | |
|
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2275 Arguments::add_loaded_agent(agent_lib); |
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2276 } else { |
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|
2277 delete agent_lib; |
| 0 | 2278 } |
| 2279 | |
| 2280 // Agent_OnAttach executed so completion status is JNI_OK | |
| 2281 st->print_cr("%d", result); | |
| 2282 result = JNI_OK; | |
| 2283 } | |
| 2284 } | |
| 2285 return result; | |
| 2286 } | |
| 2287 | |
| 2288 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2289 | |
| 2290 // Setup current current thread for event collection. | |
| 2291 void JvmtiEventCollector::setup_jvmti_thread_state() { | |
| 2292 // set this event collector to be the current one. | |
| 2293 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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2294 // state can only be NULL if the current thread is exiting which |
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2295 // should not happen since we're trying to configure for event collection |
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|
2296 guarantee(state != NULL, "exiting thread called setup_jvmti_thread_state"); |
| 0 | 2297 if (is_vm_object_alloc_event()) { |
| 2298 _prev = state->get_vm_object_alloc_event_collector(); | |
| 2299 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)this); | |
| 2300 } else if (is_dynamic_code_event()) { | |
| 2301 _prev = state->get_dynamic_code_event_collector(); | |
| 2302 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)this); | |
| 2303 } | |
| 2304 } | |
| 2305 | |
| 2306 // Unset current event collection in this thread and reset it with previous | |
| 2307 // collector. | |
| 2308 void JvmtiEventCollector::unset_jvmti_thread_state() { | |
| 2309 JvmtiThreadState* state = JavaThread::current()->jvmti_thread_state(); | |
| 2310 if (state != NULL) { | |
| 2311 // restore the previous event collector (if any) | |
| 2312 if (is_vm_object_alloc_event()) { | |
| 2313 if (state->get_vm_object_alloc_event_collector() == this) { | |
| 2314 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)_prev); | |
| 2315 } else { | |
| 2316 // this thread's jvmti state was created during the scope of | |
| 2317 // the event collector. | |
| 2318 } | |
| 2319 } else { | |
| 2320 if (is_dynamic_code_event()) { | |
| 2321 if (state->get_dynamic_code_event_collector() == this) { | |
| 2322 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)_prev); | |
| 2323 } else { | |
| 2324 // this thread's jvmti state was created during the scope of | |
| 2325 // the event collector. | |
| 2326 } | |
| 2327 } | |
| 2328 } | |
| 2329 } | |
| 2330 } | |
| 2331 | |
| 2332 // create the dynamic code event collector | |
| 2333 JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(NULL) { | |
| 2334 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 2335 setup_jvmti_thread_state(); | |
| 2336 } | |
| 2337 } | |
| 2338 | |
| 2339 // iterate over any code blob descriptors collected and post a | |
| 2340 // DYNAMIC_CODE_GENERATED event to the profiler. | |
| 2341 JvmtiDynamicCodeEventCollector::~JvmtiDynamicCodeEventCollector() { | |
| 2342 assert(!JavaThread::current()->owns_locks(), "all locks must be released to post deferred events"); | |
| 2343 // iterate over any code blob descriptors that we collected | |
| 2344 if (_code_blobs != NULL) { | |
| 2345 for (int i=0; i<_code_blobs->length(); i++) { | |
| 2346 JvmtiCodeBlobDesc* blob = _code_blobs->at(i); | |
| 2347 JvmtiExport::post_dynamic_code_generated(blob->name(), blob->code_begin(), blob->code_end()); | |
| 2348 FreeHeap(blob); | |
| 2349 } | |
| 2350 delete _code_blobs; | |
| 2351 } | |
| 2352 unset_jvmti_thread_state(); | |
| 2353 } | |
| 2354 | |
| 2355 // register a stub | |
| 2356 void JvmtiDynamicCodeEventCollector::register_stub(const char* name, address start, address end) { | |
| 2357 if (_code_blobs == NULL) { | |
| 6197 | 2358 _code_blobs = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<JvmtiCodeBlobDesc*>(1,true); |
| 0 | 2359 } |
| 2360 _code_blobs->append(new JvmtiCodeBlobDesc(name, start, end)); | |
| 2361 } | |
| 2362 | |
| 2363 // Setup current thread to record vm allocated objects. | |
| 2364 JvmtiVMObjectAllocEventCollector::JvmtiVMObjectAllocEventCollector() : _allocated(NULL) { | |
| 2365 if (JvmtiExport::should_post_vm_object_alloc()) { | |
| 2366 _enable = true; | |
| 2367 setup_jvmti_thread_state(); | |
| 2368 } else { | |
| 2369 _enable = false; | |
| 2370 } | |
| 2371 } | |
| 2372 | |
| 2373 // Post vm_object_alloc event for vm allocated objects visible to java | |
| 2374 // world. | |
| 2375 JvmtiVMObjectAllocEventCollector::~JvmtiVMObjectAllocEventCollector() { | |
| 2376 if (_allocated != NULL) { | |
| 2377 set_enabled(false); | |
| 2378 for (int i = 0; i < _allocated->length(); i++) { | |
| 2379 oop obj = _allocated->at(i); | |
| 2380 if (ServiceUtil::visible_oop(obj)) { | |
| 2381 JvmtiExport::post_vm_object_alloc(JavaThread::current(), obj); | |
| 2382 } | |
| 2383 } | |
| 2384 delete _allocated; | |
| 2385 } | |
| 2386 unset_jvmti_thread_state(); | |
| 2387 } | |
| 2388 | |
| 2389 void JvmtiVMObjectAllocEventCollector::record_allocation(oop obj) { | |
| 2390 assert(is_enabled(), "VM object alloc event collector is not enabled"); | |
| 2391 if (_allocated == NULL) { | |
| 6197 | 2392 _allocated = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<oop>(1, true); |
| 0 | 2393 } |
| 2394 _allocated->push(obj); | |
| 2395 } | |
| 2396 | |
| 2397 // GC support. | |
| 2398 void JvmtiVMObjectAllocEventCollector::oops_do(OopClosure* f) { | |
| 2399 if (_allocated != NULL) { | |
| 2400 for(int i=_allocated->length() - 1; i >= 0; i--) { | |
| 2401 if (_allocated->at(i) != NULL) { | |
| 2402 f->do_oop(_allocated->adr_at(i)); | |
| 2403 } | |
| 2404 } | |
| 2405 } | |
| 2406 } | |
| 2407 | |
| 2408 void JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(OopClosure* f) { | |
| 2409 // no-op if jvmti not enabled | |
| 2410 if (!JvmtiEnv::environments_might_exist()) { | |
| 2411 return; | |
| 2412 } | |
| 2413 | |
| 2414 // Runs at safepoint. So no need to acquire Threads_lock. | |
| 2415 for (JavaThread *jthr = Threads::first(); jthr != NULL; jthr = jthr->next()) { | |
| 2416 JvmtiThreadState *state = jthr->jvmti_thread_state(); | |
| 2417 if (state != NULL) { | |
| 2418 JvmtiVMObjectAllocEventCollector *collector; | |
| 2419 collector = state->get_vm_object_alloc_event_collector(); | |
| 2420 while (collector != NULL) { | |
| 2421 collector->oops_do(f); | |
| 2422 collector = (JvmtiVMObjectAllocEventCollector *)collector->get_prev(); | |
| 2423 } | |
| 2424 } | |
| 2425 } | |
| 2426 } | |
| 2427 | |
| 2428 | |
| 2429 // Disable collection of VMObjectAlloc events | |
| 2430 NoJvmtiVMObjectAllocMark::NoJvmtiVMObjectAllocMark() : _collector(NULL) { | |
| 2431 // a no-op if VMObjectAlloc event is not enabled | |
| 2432 if (!JvmtiExport::should_post_vm_object_alloc()) { | |
| 2433 return; | |
| 2434 } | |
| 2435 Thread* thread = ThreadLocalStorage::thread(); | |
| 2436 if (thread != NULL && thread->is_Java_thread()) { | |
| 2437 JavaThread* current_thread = (JavaThread*)thread; | |
| 2438 JvmtiThreadState *state = current_thread->jvmti_thread_state(); | |
| 2439 if (state != NULL) { | |
| 2440 JvmtiVMObjectAllocEventCollector *collector; | |
| 2441 collector = state->get_vm_object_alloc_event_collector(); | |
| 2442 if (collector != NULL && collector->is_enabled()) { | |
| 2443 _collector = collector; | |
| 2444 _collector->set_enabled(false); | |
| 2445 } | |
| 2446 } | |
| 2447 } | |
| 2448 } | |
| 2449 | |
| 2450 // Re-Enable collection of VMObjectAlloc events (if previously enabled) | |
| 2451 NoJvmtiVMObjectAllocMark::~NoJvmtiVMObjectAllocMark() { | |
| 2452 if (was_enabled()) { | |
| 2453 _collector->set_enabled(true); | |
| 2454 } | |
| 2455 }; | |
| 2456 | |
|
2125
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2457 JvmtiGCMarker::JvmtiGCMarker() { |
| 0 | 2458 // if there aren't any JVMTI environments then nothing to do |
| 2459 if (!JvmtiEnv::environments_might_exist()) { | |
| 2460 return; | |
| 2461 } | |
| 2462 | |
| 2463 if (JvmtiExport::should_post_garbage_collection_start()) { | |
| 2464 JvmtiExport::post_garbage_collection_start(); | |
| 2465 } | |
| 2466 | |
|
2125
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2467 if (SafepointSynchronize::is_at_safepoint()) { |
|
7246a374a9f2
6458402: 3 jvmti tests fail with CMS and +ExplicitGCInvokesConcurrent
kamg
parents:
1988
diff
changeset
|
2468 // 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
|
2469 JvmtiEnvBase::check_for_periodic_clean_up(); |
| 0 | 2470 } |
| 2471 } | |
| 2472 | |
| 2473 JvmtiGCMarker::~JvmtiGCMarker() { | |
| 2474 // if there aren't any JVMTI environments then nothing to do | |
| 2475 if (!JvmtiEnv::environments_might_exist()) { | |
| 2476 return; | |
| 2477 } | |
| 2478 | |
| 2479 // JVMTI notify gc finish | |
| 2480 if (JvmtiExport::should_post_garbage_collection_finish()) { | |
| 2481 JvmtiExport::post_garbage_collection_finish(); | |
| 2482 } | |
| 2483 } |