Mercurial > hg > graal-compiler
annotate src/share/vm/prims/jvmtiExport.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | d2a62e0f25eb |
| children | 6cb0d32b828b 070d523b96a7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "code/nmethod.hpp" | |
| 28 #include "code/pcDesc.hpp" | |
| 29 #include "code/scopeDesc.hpp" | |
| 30 #include "interpreter/interpreter.hpp" | |
| 31 #include "jvmtifiles/jvmtiEnv.hpp" | |
| 32 #include "memory/resourceArea.hpp" | |
| 33 #include "oops/objArrayKlass.hpp" | |
| 34 #include "oops/objArrayOop.hpp" | |
| 35 #include "prims/jvmtiCodeBlobEvents.hpp" | |
| 36 #include "prims/jvmtiEventController.hpp" | |
| 37 #include "prims/jvmtiEventController.inline.hpp" | |
| 38 #include "prims/jvmtiExport.hpp" | |
| 39 #include "prims/jvmtiImpl.hpp" | |
| 40 #include "prims/jvmtiManageCapabilities.hpp" | |
| 41 #include "prims/jvmtiRawMonitor.hpp" | |
| 42 #include "prims/jvmtiTagMap.hpp" | |
| 43 #include "prims/jvmtiThreadState.inline.hpp" | |
| 44 #include "runtime/arguments.hpp" | |
| 45 #include "runtime/handles.hpp" | |
| 46 #include "runtime/interfaceSupport.hpp" | |
| 47 #include "runtime/objectMonitor.hpp" | |
| 48 #include "runtime/objectMonitor.inline.hpp" | |
| 49 #include "runtime/thread.hpp" | |
| 50 #include "runtime/vframe.hpp" | |
| 51 #include "services/attachListener.hpp" | |
| 52 #include "services/serviceUtil.hpp" | |
| 53 #ifndef SERIALGC | |
| 54 #include "gc_implementation/parallelScavenge/psMarkSweep.hpp" | |
| 55 #endif | |
| 0 | 56 |
| 57 #ifdef JVMTI_TRACE | |
| 58 #define EVT_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_SENT) != 0) { SafeResourceMark rm; tty->print_cr out; } | |
| 59 #define EVT_TRIG_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_TRIGGER) != 0) { SafeResourceMark rm; tty->print_cr out; } | |
| 60 #else | |
| 61 #define EVT_TRIG_TRACE(evt,out) | |
| 62 #define EVT_TRACE(evt,out) | |
| 63 #endif | |
| 64 | |
| 65 /////////////////////////////////////////////////////////////// | |
| 66 // | |
| 67 // JvmtiEventTransition | |
| 68 // | |
| 69 // TO DO -- | |
| 70 // more handle purging | |
| 71 | |
| 72 // Use this for JavaThreads and state is _thread_in_vm. | |
| 73 class JvmtiJavaThreadEventTransition : StackObj { | |
| 74 private: | |
| 75 ResourceMark _rm; | |
| 76 ThreadToNativeFromVM _transition; | |
| 77 HandleMark _hm; | |
| 78 | |
| 79 public: | |
| 80 JvmtiJavaThreadEventTransition(JavaThread *thread) : | |
| 81 _rm(), | |
| 82 _transition(thread), | |
| 83 _hm(thread) {}; | |
| 84 }; | |
| 85 | |
| 86 // For JavaThreads which are not in _thread_in_vm state | |
| 87 // and other system threads use this. | |
| 88 class JvmtiThreadEventTransition : StackObj { | |
| 89 private: | |
| 90 ResourceMark _rm; | |
| 91 HandleMark _hm; | |
| 92 JavaThreadState _saved_state; | |
| 93 JavaThread *_jthread; | |
| 94 | |
| 95 public: | |
| 96 JvmtiThreadEventTransition(Thread *thread) : _rm(), _hm() { | |
| 97 if (thread->is_Java_thread()) { | |
| 98 _jthread = (JavaThread *)thread; | |
| 99 _saved_state = _jthread->thread_state(); | |
| 100 if (_saved_state == _thread_in_Java) { | |
| 101 ThreadStateTransition::transition_from_java(_jthread, _thread_in_native); | |
| 102 } else { | |
| 103 ThreadStateTransition::transition(_jthread, _saved_state, _thread_in_native); | |
| 104 } | |
| 105 } else { | |
| 106 _jthread = NULL; | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 ~JvmtiThreadEventTransition() { | |
| 111 if (_jthread != NULL) | |
| 112 ThreadStateTransition::transition_from_native(_jthread, _saved_state); | |
| 113 } | |
| 114 }; | |
| 115 | |
| 116 | |
| 117 /////////////////////////////////////////////////////////////// | |
| 118 // | |
| 119 // JvmtiEventMark | |
| 120 // | |
| 121 | |
| 122 class JvmtiEventMark : public StackObj { | |
| 123 private: | |
| 124 JavaThread *_thread; | |
| 125 JNIEnv* _jni_env; | |
| 126 bool _exception_detected; | |
| 127 bool _exception_caught; | |
| 128 #if 0 | |
| 129 JNIHandleBlock* _hblock; | |
| 130 #endif | |
| 131 | |
| 132 public: | |
| 133 JvmtiEventMark(JavaThread *thread) : _thread(thread), | |
| 134 _jni_env(thread->jni_environment()) { | |
| 135 #if 0 | |
| 136 _hblock = thread->active_handles(); | |
| 137 _hblock->clear_thoroughly(); // so we can be safe | |
| 138 #else | |
| 139 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 140 // for now, steal JNI push local frame code | |
| 141 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 142 // we are before an event. | |
| 143 // Save current jvmti thread exception state. | |
| 144 if (state != NULL) { | |
| 145 _exception_detected = state->is_exception_detected(); | |
| 146 _exception_caught = state->is_exception_caught(); | |
| 147 } else { | |
| 148 _exception_detected = false; | |
| 149 _exception_caught = false; | |
| 150 } | |
| 151 | |
| 152 JNIHandleBlock* old_handles = thread->active_handles(); | |
| 153 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); | |
| 154 assert(new_handles != NULL, "should not be NULL"); | |
| 155 new_handles->set_pop_frame_link(old_handles); | |
| 156 thread->set_active_handles(new_handles); | |
| 157 #endif | |
| 158 assert(thread == JavaThread::current(), "thread must be current!"); | |
| 159 thread->frame_anchor()->make_walkable(thread); | |
| 160 }; | |
| 161 | |
| 162 ~JvmtiEventMark() { | |
| 163 #if 0 | |
| 164 _hblock->clear(); // for consistency with future correct behavior | |
| 165 #else | |
| 166 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 167 // for now, steal JNI pop local frame code | |
| 168 JNIHandleBlock* old_handles = _thread->active_handles(); | |
| 169 JNIHandleBlock* new_handles = old_handles->pop_frame_link(); | |
| 170 assert(new_handles != NULL, "should not be NULL"); | |
| 171 _thread->set_active_handles(new_handles); | |
| 172 // Note that we set the pop_frame_link to NULL explicitly, otherwise | |
| 173 // the release_block call will release the blocks. | |
| 174 old_handles->set_pop_frame_link(NULL); | |
| 175 JNIHandleBlock::release_block(old_handles, _thread); // may block | |
| 176 #endif | |
| 177 | |
| 178 JvmtiThreadState* state = _thread->jvmti_thread_state(); | |
| 179 // we are continuing after an event. | |
| 180 if (state != NULL) { | |
| 181 // Restore the jvmti thread exception state. | |
| 182 if (_exception_detected) { | |
| 183 state->set_exception_detected(); | |
| 184 } | |
| 185 if (_exception_caught) { | |
| 186 state->set_exception_caught(); | |
| 187 } | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 #if 0 | |
| 192 jobject to_jobject(oop obj) { return obj == NULL? NULL : _hblock->allocate_handle_fast(obj); } | |
| 193 #else | |
| 194 // we want to use the code above - but that needs the JNIHandle changes - later... | |
| 195 // for now, use regular make_local | |
| 196 jobject to_jobject(oop obj) { return JNIHandles::make_local(_thread,obj); } | |
| 197 #endif | |
| 198 | |
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199 jclass to_jclass(Klass* klass) { return (klass == NULL ? NULL : (jclass)to_jobject(Klass::cast(klass)->java_mirror())); } |
| 0 | 200 |
| 201 jmethodID to_jmethodID(methodHandle method) { return method->jmethod_id(); } | |
| 202 | |
| 203 JNIEnv* jni_env() { return _jni_env; } | |
| 204 }; | |
| 205 | |
| 206 class JvmtiThreadEventMark : public JvmtiEventMark { | |
| 207 private: | |
| 208 jthread _jt; | |
| 209 | |
| 210 public: | |
| 211 JvmtiThreadEventMark(JavaThread *thread) : | |
| 212 JvmtiEventMark(thread) { | |
| 213 _jt = (jthread)(to_jobject(thread->threadObj())); | |
| 214 }; | |
| 215 jthread jni_thread() { return _jt; } | |
| 216 }; | |
| 217 | |
| 218 class JvmtiClassEventMark : public JvmtiThreadEventMark { | |
| 219 private: | |
| 220 jclass _jc; | |
| 221 | |
| 222 public: | |
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223 JvmtiClassEventMark(JavaThread *thread, Klass* klass) : |
| 0 | 224 JvmtiThreadEventMark(thread) { |
| 225 _jc = to_jclass(klass); | |
| 226 }; | |
| 227 jclass jni_class() { return _jc; } | |
| 228 }; | |
| 229 | |
| 230 class JvmtiMethodEventMark : public JvmtiThreadEventMark { | |
| 231 private: | |
| 232 jmethodID _mid; | |
| 233 | |
| 234 public: | |
| 235 JvmtiMethodEventMark(JavaThread *thread, methodHandle method) : | |
| 236 JvmtiThreadEventMark(thread), | |
| 237 _mid(to_jmethodID(method)) {}; | |
| 238 jmethodID jni_methodID() { return _mid; } | |
| 239 }; | |
| 240 | |
| 241 class JvmtiLocationEventMark : public JvmtiMethodEventMark { | |
| 242 private: | |
| 243 jlocation _loc; | |
| 244 | |
| 245 public: | |
| 246 JvmtiLocationEventMark(JavaThread *thread, methodHandle method, address location) : | |
| 247 JvmtiMethodEventMark(thread, method), | |
| 248 _loc(location - method->code_base()) {}; | |
| 249 jlocation location() { return _loc; } | |
| 250 }; | |
| 251 | |
| 252 class JvmtiExceptionEventMark : public JvmtiLocationEventMark { | |
| 253 private: | |
| 254 jobject _exc; | |
| 255 | |
| 256 public: | |
| 257 JvmtiExceptionEventMark(JavaThread *thread, methodHandle method, address location, Handle exception) : | |
| 258 JvmtiLocationEventMark(thread, method, location), | |
| 259 _exc(to_jobject(exception())) {}; | |
| 260 jobject exception() { return _exc; } | |
| 261 }; | |
| 262 | |
| 263 class JvmtiClassFileLoadEventMark : public JvmtiThreadEventMark { | |
| 264 private: | |
| 265 const char *_class_name; | |
| 266 jobject _jloader; | |
| 267 jobject _protection_domain; | |
| 268 jclass _class_being_redefined; | |
| 269 | |
| 270 public: | |
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271 JvmtiClassFileLoadEventMark(JavaThread *thread, Symbol* name, |
| 0 | 272 Handle class_loader, Handle prot_domain, KlassHandle *class_being_redefined) : JvmtiThreadEventMark(thread) { |
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273 _class_name = name != NULL? name->as_utf8() : NULL; |
| 0 | 274 _jloader = (jobject)to_jobject(class_loader()); |
| 275 _protection_domain = (jobject)to_jobject(prot_domain()); | |
| 276 if (class_being_redefined == NULL) { | |
| 277 _class_being_redefined = NULL; | |
| 278 } else { | |
| 279 _class_being_redefined = (jclass)to_jclass((*class_being_redefined)()); | |
| 280 } | |
| 281 }; | |
| 282 const char *class_name() { | |
| 283 return _class_name; | |
| 284 } | |
| 285 jobject jloader() { | |
| 286 return _jloader; | |
| 287 } | |
| 288 jobject protection_domain() { | |
| 289 return _protection_domain; | |
| 290 } | |
| 291 jclass class_being_redefined() { | |
| 292 return _class_being_redefined; | |
| 293 } | |
| 294 }; | |
| 295 | |
| 296 ////////////////////////////////////////////////////////////////////////////// | |
| 297 | |
| 298 int JvmtiExport::_field_access_count = 0; | |
| 299 int JvmtiExport::_field_modification_count = 0; | |
| 300 | |
| 301 bool JvmtiExport::_can_access_local_variables = false; | |
| 302 bool JvmtiExport::_can_hotswap_or_post_breakpoint = false; | |
| 303 bool JvmtiExport::_can_modify_any_class = false; | |
| 304 bool JvmtiExport::_can_walk_any_space = false; | |
| 305 | |
| 306 bool JvmtiExport::_has_redefined_a_class = false; | |
| 307 bool JvmtiExport::_all_dependencies_are_recorded = false; | |
| 308 | |
| 309 // | |
| 310 // field access management | |
| 311 // | |
| 312 | |
| 313 // interpreter generator needs the address of the counter | |
| 314 address JvmtiExport::get_field_access_count_addr() { | |
| 315 // We don't grab a lock because we don't want to | |
| 316 // serialize field access between all threads. This means that a | |
| 317 // thread on another processor can see the wrong count value and | |
| 318 // may either miss making a needed call into post_field_access() | |
| 319 // or will make an unneeded call into post_field_access(). We pay | |
| 320 // this price to avoid slowing down the VM when we aren't watching | |
| 321 // field accesses. | |
| 322 // Other access/mutation safe by virtue of being in VM state. | |
| 323 return (address)(&_field_access_count); | |
| 324 } | |
| 325 | |
| 326 // | |
| 327 // field modification management | |
| 328 // | |
| 329 | |
| 330 // interpreter generator needs the address of the counter | |
| 331 address JvmtiExport::get_field_modification_count_addr() { | |
| 332 // We don't grab a lock because we don't | |
| 333 // want to serialize field modification between all threads. This | |
| 334 // means that a thread on another processor can see the wrong | |
| 335 // count value and may either miss making a needed call into | |
| 336 // post_field_modification() or will make an unneeded call into | |
| 337 // post_field_modification(). We pay this price to avoid slowing | |
| 338 // down the VM when we aren't watching field modifications. | |
| 339 // Other access/mutation safe by virtue of being in VM state. | |
| 340 return (address)(&_field_modification_count); | |
| 341 } | |
| 342 | |
| 343 | |
| 344 /////////////////////////////////////////////////////////////// | |
| 345 // Functions needed by java.lang.instrument for starting up javaagent. | |
| 346 /////////////////////////////////////////////////////////////// | |
| 347 | |
| 348 jint | |
| 349 JvmtiExport::get_jvmti_interface(JavaVM *jvm, void **penv, jint version) { | |
| 1121 | 350 // The JVMTI_VERSION_INTERFACE_JVMTI part of the version number |
| 351 // has already been validated in JNI GetEnv(). | |
| 352 int major, minor, micro; | |
| 353 | |
| 354 // micro version doesn't matter here (yet?) | |
| 355 decode_version_values(version, &major, &minor, µ); | |
| 356 switch (major) { | |
| 1988 | 357 case 1: |
| 1121 | 358 switch (minor) { |
| 1988 | 359 case 0: // version 1.0.<micro> is recognized |
| 360 case 1: // version 1.1.<micro> is recognized | |
| 361 case 2: // version 1.2.<micro> is recognized | |
| 1121 | 362 break; |
| 363 | |
| 1988 | 364 default: |
| 1121 | 365 return JNI_EVERSION; // unsupported minor version number |
| 366 } | |
| 367 break; | |
| 1988 | 368 default: |
| 1121 | 369 return JNI_EVERSION; // unsupported major version number |
| 370 } | |
| 0 | 371 |
| 372 if (JvmtiEnv::get_phase() == JVMTI_PHASE_LIVE) { | |
| 373 JavaThread* current_thread = (JavaThread*) ThreadLocalStorage::thread(); | |
| 374 // transition code: native to VM | |
| 375 ThreadInVMfromNative __tiv(current_thread); | |
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376 VM_ENTRY_BASE(jvmtiEnv*, JvmtiExport::get_jvmti_interface, current_thread) |
| 0 | 377 debug_only(VMNativeEntryWrapper __vew;) |
| 378 | |
| 1121 | 379 JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
| 0 | 380 *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
| 381 return JNI_OK; | |
| 382 | |
| 383 } else if (JvmtiEnv::get_phase() == JVMTI_PHASE_ONLOAD) { | |
| 384 // not live, no thread to transition | |
| 1121 | 385 JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
| 0 | 386 *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
| 387 return JNI_OK; | |
| 388 | |
| 389 } else { | |
| 390 // Called at the wrong time | |
| 391 *penv = NULL; | |
| 392 return JNI_EDETACHED; | |
| 393 } | |
| 394 } | |
| 395 | |
| 1121 | 396 |
| 397 void | |
| 398 JvmtiExport::decode_version_values(jint version, int * major, int * minor, | |
| 399 int * micro) { | |
| 400 *major = (version & JVMTI_VERSION_MASK_MAJOR) >> JVMTI_VERSION_SHIFT_MAJOR; | |
| 401 *minor = (version & JVMTI_VERSION_MASK_MINOR) >> JVMTI_VERSION_SHIFT_MINOR; | |
| 402 *micro = (version & JVMTI_VERSION_MASK_MICRO) >> JVMTI_VERSION_SHIFT_MICRO; | |
| 403 } | |
| 404 | |
| 0 | 405 void JvmtiExport::enter_primordial_phase() { |
| 406 JvmtiEnvBase::set_phase(JVMTI_PHASE_PRIMORDIAL); | |
| 407 } | |
| 408 | |
| 409 void JvmtiExport::enter_start_phase() { | |
| 410 JvmtiManageCapabilities::recompute_always_capabilities(); | |
| 411 JvmtiEnvBase::set_phase(JVMTI_PHASE_START); | |
| 412 } | |
| 413 | |
| 414 void JvmtiExport::enter_onload_phase() { | |
| 415 JvmtiEnvBase::set_phase(JVMTI_PHASE_ONLOAD); | |
| 416 } | |
| 417 | |
| 418 void JvmtiExport::enter_live_phase() { | |
| 419 JvmtiEnvBase::set_phase(JVMTI_PHASE_LIVE); | |
| 420 } | |
| 421 | |
| 422 // | |
| 423 // JVMTI events that the VM posts to the debugger and also startup agent | |
| 424 // and call the agent's premain() for java.lang.instrument. | |
| 425 // | |
| 426 | |
| 427 void JvmtiExport::post_vm_start() { | |
| 428 EVT_TRIG_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Trg VM start event triggered" )); | |
| 429 | |
| 430 // can now enable some events | |
| 431 JvmtiEventController::vm_start(); | |
| 432 | |
| 433 JvmtiEnvIterator it; | |
| 434 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 435 if (env->is_enabled(JVMTI_EVENT_VM_START)) { | |
| 436 EVT_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Evt VM start event sent" )); | |
| 437 | |
| 438 JavaThread *thread = JavaThread::current(); | |
| 439 JvmtiThreadEventMark jem(thread); | |
| 440 JvmtiJavaThreadEventTransition jet(thread); | |
| 441 jvmtiEventVMStart callback = env->callbacks()->VMStart; | |
| 442 if (callback != NULL) { | |
| 443 (*callback)(env->jvmti_external(), jem.jni_env()); | |
| 444 } | |
| 445 } | |
| 446 } | |
| 447 } | |
| 448 | |
| 449 | |
| 450 void JvmtiExport::post_vm_initialized() { | |
| 451 EVT_TRIG_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Trg VM init event triggered" )); | |
| 452 | |
| 453 // can now enable events | |
| 454 JvmtiEventController::vm_init(); | |
| 455 | |
| 456 JvmtiEnvIterator it; | |
| 457 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 458 if (env->is_enabled(JVMTI_EVENT_VM_INIT)) { | |
| 459 EVT_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Evt VM init event sent" )); | |
| 460 | |
| 461 JavaThread *thread = JavaThread::current(); | |
| 462 JvmtiThreadEventMark jem(thread); | |
| 463 JvmtiJavaThreadEventTransition jet(thread); | |
| 464 jvmtiEventVMInit callback = env->callbacks()->VMInit; | |
| 465 if (callback != NULL) { | |
| 466 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 467 } | |
| 468 } | |
| 469 } | |
| 470 } | |
| 471 | |
| 472 | |
| 473 void JvmtiExport::post_vm_death() { | |
| 474 EVT_TRIG_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Trg VM death event triggered" )); | |
| 475 | |
| 476 JvmtiEnvIterator it; | |
| 477 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 478 if (env->is_enabled(JVMTI_EVENT_VM_DEATH)) { | |
| 479 EVT_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Evt VM death event sent" )); | |
| 480 | |
| 481 JavaThread *thread = JavaThread::current(); | |
| 482 JvmtiEventMark jem(thread); | |
| 483 JvmtiJavaThreadEventTransition jet(thread); | |
| 484 jvmtiEventVMDeath callback = env->callbacks()->VMDeath; | |
| 485 if (callback != NULL) { | |
| 486 (*callback)(env->jvmti_external(), jem.jni_env()); | |
| 487 } | |
| 488 } | |
| 489 } | |
| 490 | |
| 491 JvmtiEnvBase::set_phase(JVMTI_PHASE_DEAD); | |
| 492 JvmtiEventController::vm_death(); | |
| 493 } | |
| 494 | |
| 495 char** | |
| 496 JvmtiExport::get_all_native_method_prefixes(int* count_ptr) { | |
| 497 // Have to grab JVMTI thread state lock to be sure environment doesn't | |
| 498 // go away while we iterate them. No locks during VM bring-up. | |
| 499 if (Threads::number_of_threads() == 0 || SafepointSynchronize::is_at_safepoint()) { | |
| 500 return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); | |
| 501 } else { | |
| 502 MutexLocker mu(JvmtiThreadState_lock); | |
| 503 return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); | |
| 504 } | |
| 505 } | |
| 506 | |
| 507 class JvmtiClassFileLoadHookPoster : public StackObj { | |
| 508 private: | |
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509 Symbol* _h_name; |
| 0 | 510 Handle _class_loader; |
| 511 Handle _h_protection_domain; | |
| 512 unsigned char ** _data_ptr; | |
| 513 unsigned char ** _end_ptr; | |
| 514 JavaThread * _thread; | |
| 515 jint _curr_len; | |
| 516 unsigned char * _curr_data; | |
| 517 JvmtiEnv * _curr_env; | |
| 518 jint * _cached_length_ptr; | |
| 519 unsigned char ** _cached_data_ptr; | |
| 520 JvmtiThreadState * _state; | |
| 521 KlassHandle * _h_class_being_redefined; | |
| 522 JvmtiClassLoadKind _load_kind; | |
| 523 | |
| 524 public: | |
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525 inline JvmtiClassFileLoadHookPoster(Symbol* h_name, Handle class_loader, |
| 0 | 526 Handle h_protection_domain, |
| 527 unsigned char **data_ptr, unsigned char **end_ptr, | |
| 528 unsigned char **cached_data_ptr, | |
| 529 jint *cached_length_ptr) { | |
| 530 _h_name = h_name; | |
| 531 _class_loader = class_loader; | |
| 532 _h_protection_domain = h_protection_domain; | |
| 533 _data_ptr = data_ptr; | |
| 534 _end_ptr = end_ptr; | |
| 535 _thread = JavaThread::current(); | |
| 536 _curr_len = *end_ptr - *data_ptr; | |
| 537 _curr_data = *data_ptr; | |
| 538 _curr_env = NULL; | |
| 539 _cached_length_ptr = cached_length_ptr; | |
| 540 _cached_data_ptr = cached_data_ptr; | |
| 541 | |
| 542 _state = _thread->jvmti_thread_state(); | |
| 543 if (_state != NULL) { | |
| 544 _h_class_being_redefined = _state->get_class_being_redefined(); | |
| 545 _load_kind = _state->get_class_load_kind(); | |
| 546 // Clear class_being_redefined flag here. The action | |
| 547 // from agent handler could generate a new class file load | |
| 548 // hook event and if it is not cleared the new event generated | |
| 549 // from regular class file load could have this stale redefined | |
| 550 // class handle info. | |
| 551 _state->clear_class_being_redefined(); | |
| 552 } else { | |
| 553 // redefine and retransform will always set the thread state | |
| 554 _h_class_being_redefined = (KlassHandle *) NULL; | |
| 555 _load_kind = jvmti_class_load_kind_load; | |
| 556 } | |
| 557 } | |
| 558 | |
| 559 void post() { | |
| 560 // EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 561 // ("JVMTI [%s] class file load hook event triggered", | |
| 562 // JvmtiTrace::safe_get_thread_name(_thread))); | |
| 563 post_all_envs(); | |
| 564 copy_modified_data(); | |
| 565 } | |
| 566 | |
| 567 private: | |
| 568 void post_all_envs() { | |
| 569 if (_load_kind != jvmti_class_load_kind_retransform) { | |
| 570 // for class load and redefine, | |
| 571 // call the non-retransformable agents | |
| 572 JvmtiEnvIterator it; | |
| 573 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 574 if (!env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 575 // non-retransformable agents cannot retransform back, | |
| 576 // so no need to cache the original class file bytes | |
| 577 post_to_env(env, false); | |
| 578 } | |
| 579 } | |
| 580 } | |
| 581 JvmtiEnvIterator it; | |
| 582 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 583 // retransformable agents get all events | |
| 584 if (env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { | |
| 585 // retransformable agents need to cache the original class file | |
| 586 // bytes if changes are made via the ClassFileLoadHook | |
| 587 post_to_env(env, true); | |
| 588 } | |
| 589 } | |
| 590 } | |
| 591 | |
| 592 void post_to_env(JvmtiEnv* env, bool caching_needed) { | |
| 593 unsigned char *new_data = NULL; | |
| 594 jint new_len = 0; | |
| 595 // EVT_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, | |
| 596 // ("JVMTI [%s] class file load hook event sent %s data_ptr = %d, data_len = %d", | |
| 597 // JvmtiTrace::safe_get_thread_name(_thread), | |
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598 // _h_name == NULL ? "NULL" : _h_name->as_utf8(), |
| 0 | 599 // _curr_data, _curr_len )); |
| 600 JvmtiClassFileLoadEventMark jem(_thread, _h_name, _class_loader, | |
| 601 _h_protection_domain, | |
| 602 _h_class_being_redefined); | |
| 603 JvmtiJavaThreadEventTransition jet(_thread); | |
| 604 JNIEnv* jni_env = (JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL)? | |
| 605 NULL : jem.jni_env(); | |
| 606 jvmtiEventClassFileLoadHook callback = env->callbacks()->ClassFileLoadHook; | |
| 607 if (callback != NULL) { | |
| 608 (*callback)(env->jvmti_external(), jni_env, | |
| 609 jem.class_being_redefined(), | |
| 610 jem.jloader(), jem.class_name(), | |
| 611 jem.protection_domain(), | |
| 612 _curr_len, _curr_data, | |
| 613 &new_len, &new_data); | |
| 614 } | |
| 615 if (new_data != NULL) { | |
| 616 // this agent has modified class data. | |
| 617 if (caching_needed && *_cached_data_ptr == NULL) { | |
| 618 // data has been changed by the new retransformable agent | |
| 619 // and it hasn't already been cached, cache it | |
| 6197 | 620 *_cached_data_ptr = (unsigned char *)os::malloc(_curr_len, mtInternal); |
| 0 | 621 memcpy(*_cached_data_ptr, _curr_data, _curr_len); |
| 622 *_cached_length_ptr = _curr_len; | |
| 623 } | |
| 624 | |
| 625 if (_curr_data != *_data_ptr) { | |
| 626 // curr_data is previous agent modified class data. | |
| 627 // And this has been changed by the new agent so | |
| 628 // we can delete it now. | |
| 629 _curr_env->Deallocate(_curr_data); | |
| 630 } | |
| 631 | |
| 632 // Class file data has changed by the current agent. | |
| 633 _curr_data = new_data; | |
| 634 _curr_len = new_len; | |
| 635 // Save the current agent env we need this to deallocate the | |
| 636 // memory allocated by this agent. | |
| 637 _curr_env = env; | |
| 638 } | |
| 639 } | |
| 640 | |
| 641 void copy_modified_data() { | |
| 642 // if one of the agent has modified class file data. | |
| 643 // Copy modified class data to new resources array. | |
| 644 if (_curr_data != *_data_ptr) { | |
| 645 *_data_ptr = NEW_RESOURCE_ARRAY(u1, _curr_len); | |
| 646 memcpy(*_data_ptr, _curr_data, _curr_len); | |
| 647 *_end_ptr = *_data_ptr + _curr_len; | |
| 648 _curr_env->Deallocate(_curr_data); | |
| 649 } | |
| 650 } | |
| 651 }; | |
| 652 | |
| 653 bool JvmtiExport::_should_post_class_file_load_hook = false; | |
| 654 | |
| 655 // this entry is for class file load hook on class load, redefine and retransform | |
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656 void JvmtiExport::post_class_file_load_hook(Symbol* h_name, |
| 0 | 657 Handle class_loader, |
| 658 Handle h_protection_domain, | |
| 659 unsigned char **data_ptr, | |
| 660 unsigned char **end_ptr, | |
| 661 unsigned char **cached_data_ptr, | |
| 662 jint *cached_length_ptr) { | |
| 663 JvmtiClassFileLoadHookPoster poster(h_name, class_loader, | |
| 664 h_protection_domain, | |
| 665 data_ptr, end_ptr, | |
| 666 cached_data_ptr, | |
| 667 cached_length_ptr); | |
| 668 poster.post(); | |
| 669 } | |
| 670 | |
| 671 void JvmtiExport::report_unsupported(bool on) { | |
| 672 // If any JVMTI service is turned on, we need to exit before native code | |
| 673 // tries to access nonexistant services. | |
| 674 if (on) { | |
| 675 vm_exit_during_initialization("Java Kernel does not support JVMTI."); | |
| 676 } | |
| 677 } | |
| 678 | |
| 679 | |
| 680 #ifndef JVMTI_KERNEL | |
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681 static inline Klass* oop_to_klass(oop obj) { |
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682 Klass* k = obj->klass(); |
| 0 | 683 |
| 684 // if the object is a java.lang.Class then return the java mirror | |
| 1142 | 685 if (k == SystemDictionary::Class_klass()) { |
| 0 | 686 if (!java_lang_Class::is_primitive(obj)) { |
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687 k = java_lang_Class::as_Klass(obj); |
| 0 | 688 assert(k != NULL, "class for non-primitive mirror must exist"); |
| 689 } | |
| 690 } | |
| 691 return k; | |
| 692 } | |
| 693 | |
| 694 class JvmtiVMObjectAllocEventMark : public JvmtiClassEventMark { | |
| 695 private: | |
| 696 jobject _jobj; | |
| 697 jlong _size; | |
| 698 public: | |
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699 JvmtiVMObjectAllocEventMark(JavaThread *thread, oop obj) : JvmtiClassEventMark(thread, oop_to_klass(obj)) { |
| 0 | 700 _jobj = (jobject)to_jobject(obj); |
| 701 _size = obj->size() * wordSize; | |
| 702 }; | |
| 703 jobject jni_jobject() { return _jobj; } | |
| 704 jlong size() { return _size; } | |
| 705 }; | |
| 706 | |
| 707 class JvmtiCompiledMethodLoadEventMark : public JvmtiMethodEventMark { | |
| 708 private: | |
| 709 jint _code_size; | |
| 710 const void *_code_data; | |
| 711 jint _map_length; | |
| 712 jvmtiAddrLocationMap *_map; | |
| 713 const void *_compile_info; | |
| 714 public: | |
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715 JvmtiCompiledMethodLoadEventMark(JavaThread *thread, nmethod *nm, void* compile_info_ptr = NULL) |
| 0 | 716 : JvmtiMethodEventMark(thread,methodHandle(thread, nm->method())) { |
| 1748 | 717 _code_data = nm->insts_begin(); |
| 718 _code_size = nm->insts_size(); | |
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719 _compile_info = compile_info_ptr; // Set void pointer of compiledMethodLoad Event. Default value is NULL. |
| 0 | 720 JvmtiCodeBlobEvents::build_jvmti_addr_location_map(nm, &_map, &_map_length); |
| 721 } | |
| 722 ~JvmtiCompiledMethodLoadEventMark() { | |
| 6197 | 723 FREE_C_HEAP_ARRAY(jvmtiAddrLocationMap, _map, mtInternal); |
| 0 | 724 } |
| 725 | |
| 726 jint code_size() { return _code_size; } | |
| 727 const void *code_data() { return _code_data; } | |
| 728 jint map_length() { return _map_length; } | |
| 729 const jvmtiAddrLocationMap* map() { return _map; } | |
| 730 const void *compile_info() { return _compile_info; } | |
| 731 }; | |
| 732 | |
| 733 | |
| 734 | |
| 735 class JvmtiMonitorEventMark : public JvmtiThreadEventMark { | |
| 736 private: | |
| 737 jobject _jobj; | |
| 738 public: | |
| 739 JvmtiMonitorEventMark(JavaThread *thread, oop object) | |
| 740 : JvmtiThreadEventMark(thread){ | |
| 741 _jobj = to_jobject(object); | |
| 742 } | |
| 743 jobject jni_object() { return _jobj; } | |
| 744 }; | |
| 745 | |
| 746 /////////////////////////////////////////////////////////////// | |
| 747 // | |
| 748 // pending CompiledMethodUnload support | |
| 749 // | |
| 750 | |
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751 void JvmtiExport::post_compiled_method_unload( |
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752 jmethodID method, const void *code_begin) { |
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753 JavaThread* thread = JavaThread::current(); |
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754 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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755 ("JVMTI [%s] method compile unload event triggered", |
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756 JvmtiTrace::safe_get_thread_name(thread))); |
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757 |
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758 // post the event for each environment that has this event enabled. |
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759 JvmtiEnvIterator it; |
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760 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
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761 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_UNLOAD)) { |
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762 |
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763 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
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764 ("JVMTI [%s] class compile method unload event sent jmethodID " PTR_FORMAT, |
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765 JvmtiTrace::safe_get_thread_name(thread), method)); |
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766 |
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767 ResourceMark rm(thread); |
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768 |
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769 JvmtiEventMark jem(thread); |
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770 JvmtiJavaThreadEventTransition jet(thread); |
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771 jvmtiEventCompiledMethodUnload callback = env->callbacks()->CompiledMethodUnload; |
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772 if (callback != NULL) { |
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773 (*callback)(env->jvmti_external(), method, code_begin); |
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774 } |
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775 } |
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776 } |
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777 } |
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778 |
| 0 | 779 /////////////////////////////////////////////////////////////// |
| 780 // | |
| 781 // JvmtiExport | |
| 782 // | |
| 783 | |
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784 void JvmtiExport::post_raw_breakpoint(JavaThread *thread, Method* method, address location) { |
| 0 | 785 HandleMark hm(thread); |
| 786 methodHandle mh(thread, method); | |
| 787 | |
| 788 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 789 if (state == NULL) { | |
| 790 return; | |
| 791 } | |
| 792 EVT_TRIG_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Trg Breakpoint triggered", | |
| 793 JvmtiTrace::safe_get_thread_name(thread))); | |
| 794 JvmtiEnvThreadStateIterator it(state); | |
| 795 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 796 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_BREAKPOINT); | |
| 797 if (!ets->breakpoint_posted() && ets->is_enabled(JVMTI_EVENT_BREAKPOINT)) { | |
| 798 ThreadState old_os_state = thread->osthread()->get_state(); | |
| 799 thread->osthread()->set_state(BREAKPOINTED); | |
| 800 EVT_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Evt Breakpoint sent %s.%s @ %d", | |
| 801 JvmtiTrace::safe_get_thread_name(thread), | |
| 802 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 803 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 804 location - mh()->code_base() )); | |
| 805 | |
| 806 JvmtiEnv *env = ets->get_env(); | |
| 807 JvmtiLocationEventMark jem(thread, mh, location); | |
| 808 JvmtiJavaThreadEventTransition jet(thread); | |
| 809 jvmtiEventBreakpoint callback = env->callbacks()->Breakpoint; | |
| 810 if (callback != NULL) { | |
| 811 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 812 jem.jni_methodID(), jem.location()); | |
| 813 } | |
| 814 | |
| 815 ets->set_breakpoint_posted(); | |
| 816 thread->osthread()->set_state(old_os_state); | |
| 817 } | |
| 818 } | |
| 819 } | |
| 820 | |
| 821 ////////////////////////////////////////////////////////////////////////////// | |
| 822 | |
| 823 bool JvmtiExport::_can_get_source_debug_extension = false; | |
| 824 bool JvmtiExport::_can_maintain_original_method_order = false; | |
| 825 bool JvmtiExport::_can_post_interpreter_events = false; | |
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826 bool JvmtiExport::_can_post_on_exceptions = false; |
| 0 | 827 bool JvmtiExport::_can_post_breakpoint = false; |
| 828 bool JvmtiExport::_can_post_field_access = false; | |
| 829 bool JvmtiExport::_can_post_field_modification = false; | |
| 830 bool JvmtiExport::_can_post_method_entry = false; | |
| 831 bool JvmtiExport::_can_post_method_exit = false; | |
| 832 bool JvmtiExport::_can_pop_frame = false; | |
| 833 bool JvmtiExport::_can_force_early_return = false; | |
| 834 | |
| 835 bool JvmtiExport::_should_post_single_step = false; | |
| 836 bool JvmtiExport::_should_post_field_access = false; | |
| 837 bool JvmtiExport::_should_post_field_modification = false; | |
| 838 bool JvmtiExport::_should_post_class_load = false; | |
| 839 bool JvmtiExport::_should_post_class_prepare = false; | |
| 840 bool JvmtiExport::_should_post_class_unload = false; | |
| 841 bool JvmtiExport::_should_post_thread_life = false; | |
| 842 bool JvmtiExport::_should_clean_up_heap_objects = false; | |
| 843 bool JvmtiExport::_should_post_native_method_bind = false; | |
| 844 bool JvmtiExport::_should_post_dynamic_code_generated = false; | |
| 845 bool JvmtiExport::_should_post_data_dump = false; | |
| 846 bool JvmtiExport::_should_post_compiled_method_load = false; | |
| 847 bool JvmtiExport::_should_post_compiled_method_unload = false; | |
| 848 bool JvmtiExport::_should_post_monitor_contended_enter = false; | |
| 849 bool JvmtiExport::_should_post_monitor_contended_entered = false; | |
| 850 bool JvmtiExport::_should_post_monitor_wait = false; | |
| 851 bool JvmtiExport::_should_post_monitor_waited = false; | |
| 852 bool JvmtiExport::_should_post_garbage_collection_start = false; | |
| 853 bool JvmtiExport::_should_post_garbage_collection_finish = false; | |
| 854 bool JvmtiExport::_should_post_object_free = false; | |
| 855 bool JvmtiExport::_should_post_resource_exhausted = false; | |
| 856 bool JvmtiExport::_should_post_vm_object_alloc = false; | |
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857 bool JvmtiExport::_should_post_on_exceptions = false; |
| 0 | 858 |
| 859 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 860 | |
| 861 | |
| 862 // | |
| 863 // JVMTI single step management | |
| 864 // | |
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865 void JvmtiExport::at_single_stepping_point(JavaThread *thread, Method* method, address location) { |
| 0 | 866 assert(JvmtiExport::should_post_single_step(), "must be single stepping"); |
| 867 | |
| 868 HandleMark hm(thread); | |
| 869 methodHandle mh(thread, method); | |
| 870 | |
| 871 // update information about current location and post a step event | |
| 872 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 873 if (state == NULL) { | |
| 874 return; | |
| 875 } | |
| 876 EVT_TRIG_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Trg Single Step triggered", | |
| 877 JvmtiTrace::safe_get_thread_name(thread))); | |
| 878 if (!state->hide_single_stepping()) { | |
| 879 if (state->is_pending_step_for_popframe()) { | |
| 880 state->process_pending_step_for_popframe(); | |
| 881 } | |
| 882 if (state->is_pending_step_for_earlyret()) { | |
| 883 state->process_pending_step_for_earlyret(); | |
| 884 } | |
| 885 JvmtiExport::post_single_step(thread, mh(), location); | |
| 886 } | |
| 887 } | |
| 888 | |
| 889 | |
| 890 void JvmtiExport::expose_single_stepping(JavaThread *thread) { | |
| 891 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 892 if (state != NULL) { | |
| 893 state->clear_hide_single_stepping(); | |
| 894 } | |
| 895 } | |
| 896 | |
| 897 | |
| 898 bool JvmtiExport::hide_single_stepping(JavaThread *thread) { | |
| 899 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 900 if (state != NULL && state->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 901 state->set_hide_single_stepping(); | |
| 902 return true; | |
| 903 } else { | |
| 904 return false; | |
| 905 } | |
| 906 } | |
| 907 | |
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908 void JvmtiExport::post_class_load(JavaThread *thread, Klass* klass) { |
| 0 | 909 HandleMark hm(thread); |
| 910 KlassHandle kh(thread, klass); | |
| 911 | |
| 912 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Trg Class Load triggered", | |
| 913 JvmtiTrace::safe_get_thread_name(thread))); | |
| 914 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 915 if (state == NULL) { | |
| 916 return; | |
| 917 } | |
| 918 JvmtiEnvThreadStateIterator it(state); | |
| 919 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 920 if (ets->is_enabled(JVMTI_EVENT_CLASS_LOAD)) { | |
| 921 EVT_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Evt Class Load sent %s", | |
| 922 JvmtiTrace::safe_get_thread_name(thread), | |
| 923 kh()==NULL? "NULL" : Klass::cast(kh())->external_name() )); | |
| 924 | |
| 925 JvmtiEnv *env = ets->get_env(); | |
| 926 JvmtiClassEventMark jem(thread, kh()); | |
| 927 JvmtiJavaThreadEventTransition jet(thread); | |
| 928 jvmtiEventClassLoad callback = env->callbacks()->ClassLoad; | |
| 929 if (callback != NULL) { | |
| 930 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 931 } | |
| 932 } | |
| 933 } | |
| 934 } | |
| 935 | |
| 936 | |
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937 void JvmtiExport::post_class_prepare(JavaThread *thread, Klass* klass) { |
| 0 | 938 HandleMark hm(thread); |
| 939 KlassHandle kh(thread, klass); | |
| 940 | |
| 941 EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Trg Class Prepare triggered", | |
| 942 JvmtiTrace::safe_get_thread_name(thread))); | |
| 943 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 944 if (state == NULL) { | |
| 945 return; | |
| 946 } | |
| 947 JvmtiEnvThreadStateIterator it(state); | |
| 948 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 949 if (ets->is_enabled(JVMTI_EVENT_CLASS_PREPARE)) { | |
| 950 EVT_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Evt Class Prepare sent %s", | |
| 951 JvmtiTrace::safe_get_thread_name(thread), | |
| 952 kh()==NULL? "NULL" : Klass::cast(kh())->external_name() )); | |
| 953 | |
| 954 JvmtiEnv *env = ets->get_env(); | |
| 955 JvmtiClassEventMark jem(thread, kh()); | |
| 956 JvmtiJavaThreadEventTransition jet(thread); | |
| 957 jvmtiEventClassPrepare callback = env->callbacks()->ClassPrepare; | |
| 958 if (callback != NULL) { | |
| 959 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); | |
| 960 } | |
| 961 } | |
| 962 } | |
| 963 } | |
| 964 | |
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965 void JvmtiExport::post_class_unload(Klass* klass) { |
| 0 | 966 Thread *thread = Thread::current(); |
| 967 HandleMark hm(thread); | |
| 968 KlassHandle kh(thread, klass); | |
| 969 | |
| 970 EVT_TRIG_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Trg Class Unload triggered" )); | |
| 971 if (JvmtiEventController::is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 972 assert(thread->is_VM_thread(), "wrong thread"); | |
| 973 | |
| 974 // get JavaThread for whom we are proxy | |
| 975 JavaThread *real_thread = | |
| 976 (JavaThread *)((VMThread *)thread)->vm_operation()->calling_thread(); | |
| 977 | |
| 978 JvmtiEnvIterator it; | |
| 979 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 980 if (env->is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { | |
| 981 EVT_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Evt Class Unload sent %s", | |
| 982 kh()==NULL? "NULL" : Klass::cast(kh())->external_name() )); | |
| 983 | |
| 984 // do everything manually, since this is a proxy - needs special care | |
| 985 JNIEnv* jni_env = real_thread->jni_environment(); | |
| 986 jthread jt = (jthread)JNIHandles::make_local(real_thread, real_thread->threadObj()); | |
| 987 jclass jk = (jclass)JNIHandles::make_local(real_thread, Klass::cast(kh())->java_mirror()); | |
| 988 | |
| 989 // Before we call the JVMTI agent, we have to set the state in the | |
| 990 // thread for which we are proxying. | |
| 991 JavaThreadState prev_state = real_thread->thread_state(); | |
| 992 assert(prev_state == _thread_blocked, "JavaThread should be at safepoint"); | |
| 993 real_thread->set_thread_state(_thread_in_native); | |
| 994 | |
| 995 jvmtiExtensionEvent callback = env->ext_callbacks()->ClassUnload; | |
| 996 if (callback != NULL) { | |
| 997 (*callback)(env->jvmti_external(), jni_env, jt, jk); | |
| 998 } | |
| 999 | |
| 1000 assert(real_thread->thread_state() == _thread_in_native, | |
| 1001 "JavaThread should be in native"); | |
| 1002 real_thread->set_thread_state(prev_state); | |
| 1003 | |
| 1004 JNIHandles::destroy_local(jk); | |
| 1005 JNIHandles::destroy_local(jt); | |
| 1006 } | |
| 1007 } | |
| 1008 } | |
| 1009 } | |
| 1010 | |
| 1011 | |
| 1012 void JvmtiExport::post_thread_start(JavaThread *thread) { | |
| 1013 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1014 | |
| 1015 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Trg Thread Start event triggered", | |
| 1016 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1017 | |
| 1018 // do JVMTI thread initialization (if needed) | |
| 1019 JvmtiEventController::thread_started(thread); | |
| 1020 | |
| 1021 // Do not post thread start event for hidden java thread. | |
| 1022 if (JvmtiEventController::is_enabled(JVMTI_EVENT_THREAD_START) && | |
| 1023 !thread->is_hidden_from_external_view()) { | |
| 1024 JvmtiEnvIterator it; | |
| 1025 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1026 if (env->is_enabled(JVMTI_EVENT_THREAD_START)) { | |
| 1027 EVT_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Evt Thread Start event sent", | |
| 1028 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1029 | |
| 1030 JvmtiThreadEventMark jem(thread); | |
| 1031 JvmtiJavaThreadEventTransition jet(thread); | |
| 1032 jvmtiEventThreadStart callback = env->callbacks()->ThreadStart; | |
| 1033 if (callback != NULL) { | |
| 1034 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1035 } | |
| 1036 } | |
| 1037 } | |
| 1038 } | |
| 1039 } | |
| 1040 | |
| 1041 | |
| 1042 void JvmtiExport::post_thread_end(JavaThread *thread) { | |
| 1043 EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Trg Thread End event triggered", | |
| 1044 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1045 | |
| 1046 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1047 if (state == NULL) { | |
| 1048 return; | |
| 1049 } | |
| 1050 | |
| 1051 // Do not post thread end event for hidden java thread. | |
| 1052 if (state->is_enabled(JVMTI_EVENT_THREAD_END) && | |
| 1053 !thread->is_hidden_from_external_view()) { | |
| 1054 | |
| 1055 JvmtiEnvThreadStateIterator it(state); | |
| 1056 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1057 if (ets->is_enabled(JVMTI_EVENT_THREAD_END)) { | |
| 1058 EVT_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Evt Thread End event sent", | |
| 1059 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1060 | |
| 1061 JvmtiEnv *env = ets->get_env(); | |
| 1062 JvmtiThreadEventMark jem(thread); | |
| 1063 JvmtiJavaThreadEventTransition jet(thread); | |
| 1064 jvmtiEventThreadEnd callback = env->callbacks()->ThreadEnd; | |
| 1065 if (callback != NULL) { | |
| 1066 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); | |
| 1067 } | |
| 1068 } | |
| 1069 } | |
| 1070 } | |
| 1071 } | |
| 1072 | |
| 1073 void JvmtiExport::post_object_free(JvmtiEnv* env, jlong tag) { | |
| 1074 assert(SafepointSynchronize::is_at_safepoint(), "must be executed at safepoint"); | |
| 1075 assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE), "checking"); | |
| 1076 | |
| 1077 EVT_TRIG_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Trg Object Free triggered" )); | |
| 1078 EVT_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Evt Object Free sent")); | |
| 1079 | |
| 1080 jvmtiEventObjectFree callback = env->callbacks()->ObjectFree; | |
| 1081 if (callback != NULL) { | |
| 1082 (*callback)(env->jvmti_external(), tag); | |
| 1083 } | |
| 1084 } | |
| 1085 | |
| 1086 void JvmtiExport::post_resource_exhausted(jint resource_exhausted_flags, const char* description) { | |
| 1087 EVT_TRIG_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Trg resource exhausted event triggered" )); | |
| 1088 | |
| 1089 JvmtiEnvIterator it; | |
| 1090 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1091 if (env->is_enabled(JVMTI_EVENT_RESOURCE_EXHAUSTED)) { | |
| 1092 EVT_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Evt resource exhausted event sent" )); | |
| 1093 | |
| 1094 JavaThread *thread = JavaThread::current(); | |
| 1095 JvmtiThreadEventMark jem(thread); | |
| 1096 JvmtiJavaThreadEventTransition jet(thread); | |
| 1097 jvmtiEventResourceExhausted callback = env->callbacks()->ResourceExhausted; | |
| 1098 if (callback != NULL) { | |
| 1099 (*callback)(env->jvmti_external(), jem.jni_env(), | |
| 1100 resource_exhausted_flags, NULL, description); | |
| 1101 } | |
| 1102 } | |
| 1103 } | |
| 1104 } | |
| 1105 | |
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1106 void JvmtiExport::post_method_entry(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1107 HandleMark hm(thread); |
| 1108 methodHandle mh(thread, method); | |
| 1109 | |
| 1110 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Trg Method Entry triggered %s.%s", | |
| 1111 JvmtiTrace::safe_get_thread_name(thread), | |
| 1112 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1113 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1114 | |
| 1115 JvmtiThreadState* state = thread->jvmti_thread_state(); | |
| 1116 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1117 // for any thread that actually wants method entry, interp_only_mode is set | |
| 1118 return; | |
| 1119 } | |
| 1120 | |
| 1121 state->incr_cur_stack_depth(); | |
| 1122 | |
| 1123 if (state->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1124 JvmtiEnvThreadStateIterator it(state); | |
| 1125 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1126 if (ets->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { | |
| 1127 EVT_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Evt Method Entry sent %s.%s", | |
| 1128 JvmtiTrace::safe_get_thread_name(thread), | |
| 1129 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1130 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1131 | |
| 1132 JvmtiEnv *env = ets->get_env(); | |
| 1133 JvmtiMethodEventMark jem(thread, mh); | |
| 1134 JvmtiJavaThreadEventTransition jet(thread); | |
| 1135 jvmtiEventMethodEntry callback = env->callbacks()->MethodEntry; | |
| 1136 if (callback != NULL) { | |
| 1137 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_methodID()); | |
| 1138 } | |
| 1139 } | |
| 1140 } | |
| 1141 } | |
| 1142 } | |
| 1143 | |
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1144 void JvmtiExport::post_method_exit(JavaThread *thread, Method* method, frame current_frame) { |
| 0 | 1145 HandleMark hm(thread); |
| 1146 methodHandle mh(thread, method); | |
| 1147 | |
| 1148 EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Trg Method Exit triggered %s.%s", | |
| 1149 JvmtiTrace::safe_get_thread_name(thread), | |
| 1150 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1151 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1152 | |
| 1153 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1154 if (state == NULL || !state->is_interp_only_mode()) { | |
| 1155 // for any thread that actually wants method exit, interp_only_mode is set | |
| 1156 return; | |
| 1157 } | |
| 1158 | |
| 1159 // return a flag when a method terminates by throwing an exception | |
| 1160 // i.e. if an exception is thrown and it's not caught by the current method | |
| 1161 bool exception_exit = state->is_exception_detected() && !state->is_exception_caught(); | |
| 1162 | |
| 1163 | |
| 1164 if (state->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1165 Handle result; | |
| 1166 jvalue value; | |
| 1167 value.j = 0L; | |
| 1168 | |
| 1169 // if the method hasn't been popped because of an exception then we populate | |
| 1170 // the return_value parameter for the callback. At this point we only have | |
| 1171 // the address of a "raw result" and we just call into the interpreter to | |
| 1172 // convert this into a jvalue. | |
| 1173 if (!exception_exit) { | |
| 1174 oop oop_result; | |
| 1175 BasicType type = current_frame.interpreter_frame_result(&oop_result, &value); | |
| 1176 if (type == T_OBJECT || type == T_ARRAY) { | |
| 1177 result = Handle(thread, oop_result); | |
| 1178 } | |
| 1179 } | |
| 1180 | |
| 1181 JvmtiEnvThreadStateIterator it(state); | |
| 1182 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1183 if (ets->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { | |
| 1184 EVT_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Evt Method Exit sent %s.%s", | |
| 1185 JvmtiTrace::safe_get_thread_name(thread), | |
| 1186 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1187 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1188 | |
| 1189 JvmtiEnv *env = ets->get_env(); | |
| 1190 JvmtiMethodEventMark jem(thread, mh); | |
| 1191 if (result.not_null()) { | |
| 1192 value.l = JNIHandles::make_local(thread, result()); | |
| 1193 } | |
| 1194 JvmtiJavaThreadEventTransition jet(thread); | |
| 1195 jvmtiEventMethodExit callback = env->callbacks()->MethodExit; | |
| 1196 if (callback != NULL) { | |
| 1197 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1198 jem.jni_methodID(), exception_exit, value); | |
| 1199 } | |
| 1200 } | |
| 1201 } | |
| 1202 } | |
| 1203 | |
| 1204 if (state->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1205 JvmtiEnvThreadStateIterator it(state); | |
| 1206 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1207 int cur_frame_number = state->cur_stack_depth(); | |
| 1208 | |
| 1209 if (ets->is_frame_pop(cur_frame_number)) { | |
| 1210 // we have a NotifyFramePop entry for this frame. | |
| 1211 // now check that this env/thread wants this event | |
| 1212 if (ets->is_enabled(JVMTI_EVENT_FRAME_POP)) { | |
| 1213 EVT_TRACE(JVMTI_EVENT_FRAME_POP, ("JVMTI [%s] Evt Frame Pop sent %s.%s", | |
| 1214 JvmtiTrace::safe_get_thread_name(thread), | |
| 1215 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1216 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); | |
| 1217 | |
| 1218 // we also need to issue a frame pop event for this frame | |
| 1219 JvmtiEnv *env = ets->get_env(); | |
| 1220 JvmtiMethodEventMark jem(thread, mh); | |
| 1221 JvmtiJavaThreadEventTransition jet(thread); | |
| 1222 jvmtiEventFramePop callback = env->callbacks()->FramePop; | |
| 1223 if (callback != NULL) { | |
| 1224 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1225 jem.jni_methodID(), exception_exit); | |
| 1226 } | |
| 1227 } | |
| 1228 // remove the frame's entry | |
| 1229 ets->clear_frame_pop(cur_frame_number); | |
| 1230 } | |
| 1231 } | |
| 1232 } | |
| 1233 | |
| 1234 state->decr_cur_stack_depth(); | |
| 1235 } | |
| 1236 | |
| 1237 | |
| 1238 // Todo: inline this for optimization | |
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1239 void JvmtiExport::post_single_step(JavaThread *thread, Method* method, address location) { |
| 0 | 1240 HandleMark hm(thread); |
| 1241 methodHandle mh(thread, method); | |
| 1242 | |
| 1243 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1244 if (state == NULL) { | |
| 1245 return; | |
| 1246 } | |
| 1247 JvmtiEnvThreadStateIterator it(state); | |
| 1248 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1249 ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_SINGLE_STEP); | |
| 1250 if (!ets->single_stepping_posted() && ets->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { | |
| 1251 EVT_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Evt Single Step sent %s.%s @ %d", | |
| 1252 JvmtiTrace::safe_get_thread_name(thread), | |
| 1253 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1254 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1255 location - mh()->code_base() )); | |
| 1256 | |
| 1257 JvmtiEnv *env = ets->get_env(); | |
| 1258 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1259 JvmtiJavaThreadEventTransition jet(thread); | |
| 1260 jvmtiEventSingleStep callback = env->callbacks()->SingleStep; | |
| 1261 if (callback != NULL) { | |
| 1262 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1263 jem.jni_methodID(), jem.location()); | |
| 1264 } | |
| 1265 | |
| 1266 ets->set_single_stepping_posted(); | |
| 1267 } | |
| 1268 } | |
| 1269 } | |
| 1270 | |
| 1271 | |
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1272 void JvmtiExport::post_exception_throw(JavaThread *thread, Method* method, address location, oop exception) { |
| 0 | 1273 HandleMark hm(thread); |
| 1274 methodHandle mh(thread, method); | |
| 1275 Handle exception_handle(thread, exception); | |
| 1276 | |
| 1277 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1278 if (state == NULL) { | |
| 1279 return; | |
| 1280 } | |
| 1281 | |
| 1282 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION, ("JVMTI [%s] Trg Exception thrown triggered", | |
| 1283 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1284 if (!state->is_exception_detected()) { | |
| 1285 state->set_exception_detected(); | |
| 1286 JvmtiEnvThreadStateIterator it(state); | |
| 1287 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1288 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION) && (exception != NULL)) { | |
| 1289 | |
| 1290 EVT_TRACE(JVMTI_EVENT_EXCEPTION, | |
| 1291 ("JVMTI [%s] Evt Exception thrown sent %s.%s @ %d", | |
| 1292 JvmtiTrace::safe_get_thread_name(thread), | |
| 1293 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1294 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1295 location - mh()->code_base() )); | |
| 1296 | |
| 1297 JvmtiEnv *env = ets->get_env(); | |
| 1298 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1299 | |
| 1300 // It's okay to clear these exceptions here because we duplicate | |
| 1301 // this lookup in InterpreterRuntime::exception_handler_for_exception. | |
| 1302 EXCEPTION_MARK; | |
| 1303 | |
| 1304 bool should_repeat; | |
| 1305 vframeStream st(thread); | |
| 1306 assert(!st.at_end(), "cannot be at end"); | |
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1307 Method* current_method = NULL; |
| 0 | 1308 int current_bci = -1; |
| 1309 do { | |
| 1310 current_method = st.method(); | |
| 1311 current_bci = st.bci(); | |
| 1312 do { | |
| 1313 should_repeat = false; | |
| 1314 KlassHandle eh_klass(thread, exception_handle()->klass()); | |
| 1315 current_bci = current_method->fast_exception_handler_bci_for( | |
| 1316 eh_klass, current_bci, THREAD); | |
| 1317 if (HAS_PENDING_EXCEPTION) { | |
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1318 exception_handle = Handle(thread, PENDING_EXCEPTION); |
| 0 | 1319 CLEAR_PENDING_EXCEPTION; |
| 1320 should_repeat = true; | |
| 1321 } | |
| 1322 } while (should_repeat && (current_bci != -1)); | |
| 1323 st.next(); | |
| 1324 } while ((current_bci < 0) && (!st.at_end())); | |
| 1325 | |
| 1326 jmethodID catch_jmethodID; | |
| 1327 if (current_bci < 0) { | |
| 1328 catch_jmethodID = 0; | |
| 1329 current_bci = 0; | |
| 1330 } else { | |
| 1331 catch_jmethodID = jem.to_jmethodID( | |
| 1332 methodHandle(thread, current_method)); | |
| 1333 } | |
| 1334 | |
| 1335 JvmtiJavaThreadEventTransition jet(thread); | |
| 1336 jvmtiEventException callback = env->callbacks()->Exception; | |
| 1337 if (callback != NULL) { | |
| 1338 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1339 jem.jni_methodID(), jem.location(), | |
| 1340 jem.exception(), | |
| 1341 catch_jmethodID, current_bci); | |
| 1342 } | |
| 1343 } | |
| 1344 } | |
| 1345 } | |
| 1346 | |
| 1347 // frames may get popped because of this throw, be safe - invalidate cached depth | |
| 1348 state->invalidate_cur_stack_depth(); | |
| 1349 } | |
| 1350 | |
| 1351 | |
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1352 void JvmtiExport::notice_unwind_due_to_exception(JavaThread *thread, Method* method, address location, oop exception, bool in_handler_frame) { |
| 0 | 1353 HandleMark hm(thread); |
| 1354 methodHandle mh(thread, method); | |
| 1355 Handle exception_handle(thread, exception); | |
| 1356 | |
| 1357 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1358 if (state == NULL) { | |
| 1359 return; | |
| 1360 } | |
| 1361 EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1362 ("JVMTI [%s] Trg unwind_due_to_exception triggered %s.%s @ %s%d - %s", | |
| 1363 JvmtiTrace::safe_get_thread_name(thread), | |
| 1364 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1365 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1366 location==0? "no location:" : "", | |
| 1367 location==0? 0 : location - mh()->code_base(), | |
| 1368 in_handler_frame? "in handler frame" : "not handler frame" )); | |
| 1369 | |
| 1370 if (state->is_exception_detected()) { | |
| 1371 | |
| 1372 state->invalidate_cur_stack_depth(); | |
| 1373 if (!in_handler_frame) { | |
| 1374 // Not in exception handler. | |
| 1375 if(state->is_interp_only_mode()) { | |
| 1376 // method exit and frame pop events are posted only in interp mode. | |
| 1377 // When these events are enabled code should be in running in interp mode. | |
| 1378 JvmtiExport::post_method_exit(thread, method, thread->last_frame()); | |
| 1379 // The cached cur_stack_depth might have changed from the | |
| 1380 // operations of frame pop or method exit. We are not 100% sure | |
| 1381 // the cached cur_stack_depth is still valid depth so invalidate | |
| 1382 // it. | |
| 1383 state->invalidate_cur_stack_depth(); | |
| 1384 } | |
| 1385 } else { | |
| 1386 // In exception handler frame. Report exception catch. | |
| 1387 assert(location != NULL, "must be a known location"); | |
| 1388 // Update cur_stack_depth - the frames above the current frame | |
| 1389 // have been unwound due to this exception: | |
| 1390 assert(!state->is_exception_caught(), "exception must not be caught yet."); | |
| 1391 state->set_exception_caught(); | |
| 1392 | |
| 1393 JvmtiEnvThreadStateIterator it(state); | |
| 1394 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1395 if (ets->is_enabled(JVMTI_EVENT_EXCEPTION_CATCH) && (exception_handle() != NULL)) { | |
| 1396 EVT_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, | |
| 1397 ("JVMTI [%s] Evt ExceptionCatch sent %s.%s @ %d", | |
| 1398 JvmtiTrace::safe_get_thread_name(thread), | |
| 1399 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1400 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1401 location - mh()->code_base() )); | |
| 1402 | |
| 1403 JvmtiEnv *env = ets->get_env(); | |
| 1404 JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); | |
| 1405 JvmtiJavaThreadEventTransition jet(thread); | |
| 1406 jvmtiEventExceptionCatch callback = env->callbacks()->ExceptionCatch; | |
| 1407 if (callback != NULL) { | |
| 1408 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1409 jem.jni_methodID(), jem.location(), | |
| 1410 jem.exception()); | |
| 1411 } | |
| 1412 } | |
| 1413 } | |
| 1414 } | |
| 1415 } | |
| 1416 } | |
| 1417 | |
| 1418 oop JvmtiExport::jni_GetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1419 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1420 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1421 // At least one field access watch is set so we have more work | |
| 1422 // to do. This wrapper is used by entry points that allow us | |
| 1423 // to create handles in post_field_access_by_jni(). | |
| 1424 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1425 // event posting can block so refetch oop if we were passed a jobj | |
| 1426 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1427 } | |
| 1428 return obj; | |
| 1429 } | |
| 1430 | |
| 1431 oop JvmtiExport::jni_GetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
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1432 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1433 if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
| 1434 // At least one field access watch is set so we have more work | |
| 1435 // to do. This wrapper is used by "quick" entry points that don't | |
| 1436 // allow us to create handles in post_field_access_by_jni(). We | |
| 1437 // override that with a ResetNoHandleMark. | |
| 1438 ResetNoHandleMark rnhm; | |
| 1439 post_field_access_by_jni(thread, obj, klass, fieldID, is_static); | |
| 1440 // event posting can block so refetch oop if we were passed a jobj | |
| 1441 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1442 } | |
| 1443 return obj; | |
| 1444 } | |
| 1445 | |
| 1446 void JvmtiExport::post_field_access_by_jni(JavaThread *thread, oop obj, | |
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1447 Klass* klass, jfieldID fieldID, bool is_static) { |
| 0 | 1448 // We must be called with a Java context in order to provide reasonable |
| 1449 // values for the klazz, method, and location fields. The callers of this | |
| 1450 // function don't make the call unless there is a Java context. | |
| 1451 assert(thread->has_last_Java_frame(), "must be called with a Java context"); | |
| 1452 | |
| 1453 ResourceMark rm; | |
| 1454 fieldDescriptor fd; | |
| 1455 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1456 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1457 assert(valid_fieldID == true,"post_field_access_by_jni called with invalid fieldID"); | |
| 1458 if (!valid_fieldID) return; | |
| 1459 // field accesses are not watched so bail | |
| 1460 if (!fd.is_field_access_watched()) return; | |
| 1461 | |
| 1462 HandleMark hm(thread); | |
| 1463 KlassHandle h_klass(thread, klass); | |
| 1464 Handle h_obj; | |
| 1465 if (!is_static) { | |
| 1466 // non-static field accessors have an object, but we need a handle | |
| 1467 assert(obj != NULL, "non-static needs an object"); | |
| 1468 h_obj = Handle(thread, obj); | |
| 1469 } | |
| 1470 post_field_access(thread, | |
| 1471 thread->last_frame().interpreter_frame_method(), | |
| 1472 thread->last_frame().interpreter_frame_bcp(), | |
| 1473 h_klass, h_obj, fieldID); | |
| 1474 } | |
| 1475 | |
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1476 void JvmtiExport::post_field_access(JavaThread *thread, Method* method, |
| 0 | 1477 address location, KlassHandle field_klass, Handle object, jfieldID field) { |
| 1478 | |
| 1479 HandleMark hm(thread); | |
| 1480 methodHandle mh(thread, method); | |
| 1481 | |
| 1482 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1483 if (state == NULL) { | |
| 1484 return; | |
| 1485 } | |
| 1486 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Trg Field Access event triggered", | |
| 1487 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1488 JvmtiEnvThreadStateIterator it(state); | |
| 1489 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1490 if (ets->is_enabled(JVMTI_EVENT_FIELD_ACCESS)) { | |
| 1491 EVT_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Evt Field Access event sent %s.%s @ %d", | |
| 1492 JvmtiTrace::safe_get_thread_name(thread), | |
| 1493 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1494 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1495 location - mh()->code_base() )); | |
| 1496 | |
| 1497 JvmtiEnv *env = ets->get_env(); | |
| 1498 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1499 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1500 jobject field_jobject = jem.to_jobject(object()); | |
| 1501 JvmtiJavaThreadEventTransition jet(thread); | |
| 1502 jvmtiEventFieldAccess callback = env->callbacks()->FieldAccess; | |
| 1503 if (callback != NULL) { | |
| 1504 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1505 jem.jni_methodID(), jem.location(), | |
| 1506 field_jclass, field_jobject, field); | |
| 1507 } | |
| 1508 } | |
| 1509 } | |
| 1510 } | |
| 1511 | |
| 1512 oop JvmtiExport::jni_SetField_probe(JavaThread *thread, jobject jobj, oop obj, | |
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1513 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1514 char sig_type, jvalue *value) { |
| 1515 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1516 // At least one field modification watch is set so we have more work | |
| 1517 // to do. This wrapper is used by entry points that allow us | |
| 1518 // to create handles in post_field_modification_by_jni(). | |
| 1519 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1520 // event posting can block so refetch oop if we were passed a jobj | |
| 1521 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1522 } | |
| 1523 return obj; | |
| 1524 } | |
| 1525 | |
| 1526 oop JvmtiExport::jni_SetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, | |
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1527 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1528 char sig_type, jvalue *value) { |
| 1529 if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { | |
| 1530 // At least one field modification watch is set so we have more work | |
| 1531 // to do. This wrapper is used by "quick" entry points that don't | |
| 1532 // allow us to create handles in post_field_modification_by_jni(). We | |
| 1533 // override that with a ResetNoHandleMark. | |
| 1534 ResetNoHandleMark rnhm; | |
| 1535 post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); | |
| 1536 // event posting can block so refetch oop if we were passed a jobj | |
| 1537 if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); | |
| 1538 } | |
| 1539 return obj; | |
| 1540 } | |
| 1541 | |
| 1542 void JvmtiExport::post_field_modification_by_jni(JavaThread *thread, oop obj, | |
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1543 Klass* klass, jfieldID fieldID, bool is_static, |
| 0 | 1544 char sig_type, jvalue *value) { |
| 1545 // We must be called with a Java context in order to provide reasonable | |
| 1546 // values for the klazz, method, and location fields. The callers of this | |
| 1547 // function don't make the call unless there is a Java context. | |
| 1548 assert(thread->has_last_Java_frame(), "must be called with Java context"); | |
| 1549 | |
| 1550 ResourceMark rm; | |
| 1551 fieldDescriptor fd; | |
| 1552 // if get_field_descriptor finds fieldID to be invalid, then we just bail | |
| 1553 bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); | |
| 1554 assert(valid_fieldID == true,"post_field_modification_by_jni called with invalid fieldID"); | |
| 1555 if (!valid_fieldID) return; | |
| 1556 // field modifications are not watched so bail | |
| 1557 if (!fd.is_field_modification_watched()) return; | |
| 1558 | |
| 1559 HandleMark hm(thread); | |
| 1560 | |
| 1561 Handle h_obj; | |
| 1562 if (!is_static) { | |
| 1563 // non-static field accessors have an object, but we need a handle | |
| 1564 assert(obj != NULL, "non-static needs an object"); | |
| 1565 h_obj = Handle(thread, obj); | |
| 1566 } | |
| 1567 KlassHandle h_klass(thread, klass); | |
| 1568 post_field_modification(thread, | |
| 1569 thread->last_frame().interpreter_frame_method(), | |
| 1570 thread->last_frame().interpreter_frame_bcp(), | |
| 1571 h_klass, h_obj, fieldID, sig_type, value); | |
| 1572 } | |
| 1573 | |
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1574 void JvmtiExport::post_raw_field_modification(JavaThread *thread, Method* method, |
| 0 | 1575 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1576 char sig_type, jvalue *value) { | |
| 1577 | |
| 1578 if (sig_type == 'I' || sig_type == 'Z' || sig_type == 'C' || sig_type == 'S') { | |
| 1579 // 'I' instructions are used for byte, char, short and int. | |
| 1580 // determine which it really is, and convert | |
| 1581 fieldDescriptor fd; | |
| 1582 bool found = JvmtiEnv::get_field_descriptor(field_klass(), field, &fd); | |
| 1583 // should be found (if not, leave as is) | |
| 1584 if (found) { | |
| 1585 jint ival = value->i; | |
| 1586 // convert value from int to appropriate type | |
| 1587 switch (fd.field_type()) { | |
| 1588 case T_BOOLEAN: | |
| 1589 sig_type = 'Z'; | |
| 1590 value->i = 0; // clear it | |
| 1591 value->z = (jboolean)ival; | |
| 1592 break; | |
| 1593 case T_BYTE: | |
| 1594 sig_type = 'B'; | |
| 1595 value->i = 0; // clear it | |
| 1596 value->b = (jbyte)ival; | |
| 1597 break; | |
| 1598 case T_CHAR: | |
| 1599 sig_type = 'C'; | |
| 1600 value->i = 0; // clear it | |
| 1601 value->c = (jchar)ival; | |
| 1602 break; | |
| 1603 case T_SHORT: | |
| 1604 sig_type = 'S'; | |
| 1605 value->i = 0; // clear it | |
| 1606 value->s = (jshort)ival; | |
| 1607 break; | |
| 1608 case T_INT: | |
| 1609 // nothing to do | |
| 1610 break; | |
| 1611 default: | |
| 1612 // this is an integer instruction, should be one of above | |
| 1613 ShouldNotReachHere(); | |
| 1614 break; | |
| 1615 } | |
| 1616 } | |
| 1617 } | |
| 1618 | |
| 1619 // convert oop to JNI handle. | |
| 1620 if (sig_type == 'L' || sig_type == '[') { | |
| 1621 value->l = (jobject)JNIHandles::make_local(thread, (oop)value->l); | |
| 1622 } | |
| 1623 | |
| 1624 post_field_modification(thread, method, location, field_klass, object, field, sig_type, value); | |
| 1625 | |
| 1626 // Destroy the JNI handle allocated above. | |
| 1627 if (sig_type == 'L') { | |
| 1628 JNIHandles::destroy_local(value->l); | |
| 1629 } | |
| 1630 } | |
| 1631 | |
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1632 void JvmtiExport::post_field_modification(JavaThread *thread, Method* method, |
| 0 | 1633 address location, KlassHandle field_klass, Handle object, jfieldID field, |
| 1634 char sig_type, jvalue *value_ptr) { | |
| 1635 | |
| 1636 HandleMark hm(thread); | |
| 1637 methodHandle mh(thread, method); | |
| 1638 | |
| 1639 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1640 if (state == NULL) { | |
| 1641 return; | |
| 1642 } | |
| 1643 EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1644 ("JVMTI [%s] Trg Field Modification event triggered", | |
| 1645 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1646 | |
| 1647 JvmtiEnvThreadStateIterator it(state); | |
| 1648 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1649 if (ets->is_enabled(JVMTI_EVENT_FIELD_MODIFICATION)) { | |
| 1650 EVT_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, | |
| 1651 ("JVMTI [%s] Evt Field Modification event sent %s.%s @ %d", | |
| 1652 JvmtiTrace::safe_get_thread_name(thread), | |
| 1653 (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), | |
| 1654 (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), | |
| 1655 location - mh()->code_base() )); | |
| 1656 | |
| 1657 JvmtiEnv *env = ets->get_env(); | |
| 1658 JvmtiLocationEventMark jem(thread, mh, location); | |
| 1659 jclass field_jclass = jem.to_jclass(field_klass()); | |
| 1660 jobject field_jobject = jem.to_jobject(object()); | |
| 1661 JvmtiJavaThreadEventTransition jet(thread); | |
| 1662 jvmtiEventFieldModification callback = env->callbacks()->FieldModification; | |
| 1663 if (callback != NULL) { | |
| 1664 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 1665 jem.jni_methodID(), jem.location(), | |
| 1666 field_jclass, field_jobject, field, sig_type, *value_ptr); | |
| 1667 } | |
| 1668 } | |
| 1669 } | |
| 1670 } | |
| 1671 | |
|
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1672 void JvmtiExport::post_native_method_bind(Method* method, address* function_ptr) { |
| 0 | 1673 JavaThread* thread = JavaThread::current(); |
| 1674 assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); | |
| 1675 | |
| 1676 HandleMark hm(thread); | |
| 1677 methodHandle mh(thread, method); | |
| 1678 | |
| 1679 EVT_TRIG_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Trg Native Method Bind event triggered", | |
| 1680 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1681 | |
| 1682 if (JvmtiEventController::is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1683 JvmtiEnvIterator it; | |
| 1684 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1685 if (env->is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { | |
| 1686 EVT_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Evt Native Method Bind event sent", | |
| 1687 JvmtiTrace::safe_get_thread_name(thread) )); | |
| 1688 | |
| 1689 JvmtiMethodEventMark jem(thread, mh); | |
| 1690 JvmtiJavaThreadEventTransition jet(thread); | |
| 1691 JNIEnv* jni_env = JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL? NULL : jem.jni_env(); | |
| 1692 jvmtiEventNativeMethodBind callback = env->callbacks()->NativeMethodBind; | |
| 1693 if (callback != NULL) { | |
| 1694 (*callback)(env->jvmti_external(), jni_env, jem.jni_thread(), | |
| 1695 jem.jni_methodID(), (void*)(*function_ptr), (void**)function_ptr); | |
| 1696 } | |
| 1697 } | |
| 1698 } | |
| 1699 } | |
| 1700 } | |
| 1701 | |
|
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1702 // Returns a record containing inlining information for the given nmethod |
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1703 jvmtiCompiledMethodLoadInlineRecord* create_inline_record(nmethod* nm) { |
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1704 jint numstackframes = 0; |
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1705 jvmtiCompiledMethodLoadInlineRecord* record = (jvmtiCompiledMethodLoadInlineRecord*)NEW_RESOURCE_OBJ(jvmtiCompiledMethodLoadInlineRecord); |
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1706 record->header.kind = JVMTI_CMLR_INLINE_INFO; |
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1707 record->header.next = NULL; |
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1708 record->header.majorinfoversion = JVMTI_CMLR_MAJOR_VERSION_1; |
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1709 record->header.minorinfoversion = JVMTI_CMLR_MINOR_VERSION_0; |
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1710 record->numpcs = 0; |
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1711 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1712 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1713 record->numpcs++; |
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1714 } |
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1715 record->pcinfo = (PCStackInfo*)(NEW_RESOURCE_ARRAY(PCStackInfo, record->numpcs)); |
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1716 int scope = 0; |
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1717 for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
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1718 if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
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1719 void* pc_address = (void*)p->real_pc(nm); |
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1720 assert(pc_address != NULL, "pc_address must be non-null"); |
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1721 record->pcinfo[scope].pc = pc_address; |
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1722 numstackframes=0; |
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1723 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1724 numstackframes++; |
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1725 } |
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1726 assert(numstackframes != 0, "numstackframes must be nonzero."); |
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1727 record->pcinfo[scope].methods = (jmethodID *)NEW_RESOURCE_ARRAY(jmethodID, numstackframes); |
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1728 record->pcinfo[scope].bcis = (jint *)NEW_RESOURCE_ARRAY(jint, numstackframes); |
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1729 record->pcinfo[scope].numstackframes = numstackframes; |
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1730 int stackframe = 0; |
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1731 for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
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1732 // 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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1733 assert(sd->method() != NULL, "sd->method() cannot be null."); |
|
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1734 record->pcinfo[scope].methods[stackframe] = sd->method()->jmethod_id(); |
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1735 record->pcinfo[scope].bcis[stackframe] = sd->bci(); |
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1736 stackframe++; |
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1737 } |
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1738 scope++; |
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1739 } |
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1740 return record; |
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1741 } |
| 0 | 1742 |
| 1743 void JvmtiExport::post_compiled_method_load(nmethod *nm) { | |
| 1744 JavaThread* thread = JavaThread::current(); | |
| 1745 | |
| 1746 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1747 ("JVMTI [%s] method compile load event triggered", | |
| 1748 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1749 | |
| 1750 JvmtiEnvIterator it; | |
| 1751 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1752 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1753 | |
| 1754 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1755 ("JVMTI [%s] class compile method load event sent %s.%s ", | |
| 1756 JvmtiTrace::safe_get_thread_name(thread), | |
| 1757 (nm->method() == NULL) ? "NULL" : nm->method()->klass_name()->as_C_string(), | |
| 1758 (nm->method() == NULL) ? "NULL" : nm->method()->name()->as_C_string())); | |
| 1759 ResourceMark rm(thread); | |
|
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1760 HandleMark hm(thread); |
|
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1761 |
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1762 // Add inlining information |
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1763 jvmtiCompiledMethodLoadInlineRecord* inlinerecord = create_inline_record(nm); |
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1764 // Pass inlining information through the void pointer |
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1765 JvmtiCompiledMethodLoadEventMark jem(thread, nm, inlinerecord); |
| 0 | 1766 JvmtiJavaThreadEventTransition jet(thread); |
| 1767 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1768 if (callback != NULL) { | |
| 1769 (*callback)(env->jvmti_external(), jem.jni_methodID(), | |
| 1770 jem.code_size(), jem.code_data(), jem.map_length(), | |
| 1771 jem.map(), jem.compile_info()); | |
| 1772 } | |
| 1773 } | |
| 1774 } | |
| 1775 } | |
| 1776 | |
| 1777 | |
| 1778 // post a COMPILED_METHOD_LOAD event for a given environment | |
| 1779 void JvmtiExport::post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length, | |
| 1780 const void *code_begin, const jint map_length, | |
| 1781 const jvmtiAddrLocationMap* map) | |
| 1782 { | |
| 1783 JavaThread* thread = JavaThread::current(); | |
| 1784 EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1785 ("JVMTI [%s] method compile load event triggered (by GenerateEvents)", | |
| 1786 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1787 if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { | |
| 1788 | |
| 1789 EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, | |
| 1790 ("JVMTI [%s] class compile method load event sent (by GenerateEvents), jmethodID=" PTR_FORMAT, | |
| 1791 JvmtiTrace::safe_get_thread_name(thread), method)); | |
| 1792 | |
| 1793 JvmtiEventMark jem(thread); | |
| 1794 JvmtiJavaThreadEventTransition jet(thread); | |
| 1795 jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; | |
| 1796 if (callback != NULL) { | |
| 1797 (*callback)(env->jvmti_external(), method, | |
| 1798 length, code_begin, map_length, | |
| 1799 map, NULL); | |
| 1800 } | |
| 1801 } | |
| 1802 } | |
| 1803 | |
| 1804 void JvmtiExport::post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) { | |
|
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1805 assert(name != NULL && name[0] != '\0', "sanity check"); |
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1806 |
| 0 | 1807 JavaThread* thread = JavaThread::current(); |
|
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1808 // In theory everyone coming thru here is in_vm but we need to be certain |
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1809 // because a callee will do a vm->native transition |
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1810 ThreadInVMfromUnknown __tiv; |
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1811 |
| 0 | 1812 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, |
| 1813 ("JVMTI [%s] method dynamic code generated event triggered", | |
| 1814 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1815 JvmtiEnvIterator it; | |
| 1816 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1817 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1818 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1819 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1820 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1821 JvmtiEventMark jem(thread); | |
| 1822 JvmtiJavaThreadEventTransition jet(thread); | |
| 1823 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1824 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1825 if (callback != NULL) { | |
| 1826 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1827 } | |
| 1828 } | |
| 1829 } | |
| 1830 } | |
| 1831 | |
| 1832 void JvmtiExport::post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) { | |
| 1833 jvmtiPhase phase = JvmtiEnv::get_phase(); | |
| 1834 if (phase == JVMTI_PHASE_PRIMORDIAL || phase == JVMTI_PHASE_START) { | |
| 1835 post_dynamic_code_generated_internal(name, code_begin, code_end); | |
|
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1836 } else { |
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1837 // It may not be safe to post the event from this thread. Defer all |
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1838 // postings to the service thread so that it can perform them in a safe |
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1839 // context and in-order. |
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1840 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1841 JvmtiDeferredEvent event = JvmtiDeferredEvent::dynamic_code_generated_event( |
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1842 name, code_begin, code_end); |
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1843 JvmtiDeferredEventQueue::enqueue(event); |
| 0 | 1844 } |
| 1845 } | |
| 1846 | |
| 1847 | |
| 1848 // post a DYNAMIC_CODE_GENERATED event for a given environment | |
| 1849 // used by GenerateEvents | |
| 1850 void JvmtiExport::post_dynamic_code_generated(JvmtiEnv* env, const char *name, | |
| 1851 const void *code_begin, const void *code_end) | |
| 1852 { | |
| 1853 JavaThread* thread = JavaThread::current(); | |
| 1854 EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1855 ("JVMTI [%s] dynamic code generated event triggered (by GenerateEvents)", | |
| 1856 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1857 if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { | |
| 1858 EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, | |
| 1859 ("JVMTI [%s] dynamic code generated event sent for %s", | |
| 1860 JvmtiTrace::safe_get_thread_name(thread), name)); | |
| 1861 JvmtiEventMark jem(thread); | |
| 1862 JvmtiJavaThreadEventTransition jet(thread); | |
| 1863 jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); | |
| 1864 jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; | |
| 1865 if (callback != NULL) { | |
| 1866 (*callback)(env->jvmti_external(), name, (void*)code_begin, length); | |
| 1867 } | |
| 1868 } | |
| 1869 } | |
| 1870 | |
| 1871 // post a DynamicCodeGenerated event while holding locks in the VM. | |
| 1872 void JvmtiExport::post_dynamic_code_generated_while_holding_locks(const char* name, | |
| 1873 address code_begin, address code_end) | |
| 1874 { | |
| 1875 // register the stub with the current dynamic code event collector | |
| 1876 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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1878 // should not happen since we're trying to post an event |
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1879 guarantee(state != NULL, "attempt to register stub via an exiting thread"); |
| 0 | 1880 JvmtiDynamicCodeEventCollector* collector = state->get_dynamic_code_event_collector(); |
| 1881 guarantee(collector != NULL, "attempt to register stub without event collector"); | |
| 1882 collector->register_stub(name, code_begin, code_end); | |
| 1883 } | |
| 1884 | |
| 1885 // Collect all the vm internally allocated objects which are visible to java world | |
| 1886 void JvmtiExport::record_vm_internal_object_allocation(oop obj) { | |
| 1887 Thread* thread = ThreadLocalStorage::thread(); | |
| 1888 if (thread != NULL && thread->is_Java_thread()) { | |
| 1889 // Can not take safepoint here. | |
| 1890 No_Safepoint_Verifier no_sfpt; | |
| 1891 // Can not take safepoint here so can not use state_for to get | |
| 1892 // jvmti thread state. | |
| 1893 JvmtiThreadState *state = ((JavaThread*)thread)->jvmti_thread_state(); | |
| 1894 if (state != NULL ) { | |
| 1895 // state is non NULL when VMObjectAllocEventCollector is enabled. | |
| 1896 JvmtiVMObjectAllocEventCollector *collector; | |
| 1897 collector = state->get_vm_object_alloc_event_collector(); | |
| 1898 if (collector != NULL && collector->is_enabled()) { | |
| 1899 // Don't record classes as these will be notified via the ClassLoad | |
| 1900 // event. | |
| 1142 | 1901 if (obj->klass() != SystemDictionary::Class_klass()) { |
| 0 | 1902 collector->record_allocation(obj); |
| 1903 } | |
| 1904 } | |
| 1905 } | |
| 1906 } | |
| 1907 } | |
| 1908 | |
| 1909 void JvmtiExport::post_garbage_collection_finish() { | |
| 1910 Thread *thread = Thread::current(); // this event is posted from VM-Thread. | |
| 1911 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1912 ("JVMTI [%s] garbage collection finish event triggered", | |
| 1913 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1914 JvmtiEnvIterator it; | |
| 1915 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1916 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH)) { | |
| 1917 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, | |
| 1918 ("JVMTI [%s] garbage collection finish event sent ", | |
| 1919 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1920 JvmtiThreadEventTransition jet(thread); | |
| 1921 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1922 jvmtiEventGarbageCollectionFinish callback = env->callbacks()->GarbageCollectionFinish; | |
| 1923 if (callback != NULL) { | |
| 1924 (*callback)(env->jvmti_external()); | |
| 1925 } | |
| 1926 } | |
| 1927 } | |
| 1928 } | |
| 1929 | |
| 1930 void JvmtiExport::post_garbage_collection_start() { | |
| 1931 Thread* thread = Thread::current(); // this event is posted from vm-thread. | |
| 1932 EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1933 ("JVMTI [%s] garbage collection start event triggered", | |
| 1934 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1935 JvmtiEnvIterator it; | |
| 1936 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1937 if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_START)) { | |
| 1938 EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, | |
| 1939 ("JVMTI [%s] garbage collection start event sent ", | |
| 1940 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1941 JvmtiThreadEventTransition jet(thread); | |
| 1942 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1943 jvmtiEventGarbageCollectionStart callback = env->callbacks()->GarbageCollectionStart; | |
| 1944 if (callback != NULL) { | |
| 1945 (*callback)(env->jvmti_external()); | |
| 1946 } | |
| 1947 } | |
| 1948 } | |
| 1949 } | |
| 1950 | |
| 1951 void JvmtiExport::post_data_dump() { | |
| 1952 Thread *thread = Thread::current(); | |
| 1953 EVT_TRIG_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1954 ("JVMTI [%s] data dump request event triggered", | |
| 1955 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1956 JvmtiEnvIterator it; | |
| 1957 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 1958 if (env->is_enabled(JVMTI_EVENT_DATA_DUMP_REQUEST)) { | |
| 1959 EVT_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, | |
| 1960 ("JVMTI [%s] data dump request event sent ", | |
| 1961 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1962 JvmtiThreadEventTransition jet(thread); | |
| 1963 // JNIEnv is NULL here because this event is posted from VM Thread | |
| 1964 jvmtiEventDataDumpRequest callback = env->callbacks()->DataDumpRequest; | |
| 1965 if (callback != NULL) { | |
| 1966 (*callback)(env->jvmti_external()); | |
| 1967 } | |
| 1968 } | |
| 1969 } | |
| 1970 } | |
| 1971 | |
| 1972 void JvmtiExport::post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 1973 oop object = (oop)obj_mntr->object(); | |
| 1974 if (!ServiceUtil::visible_oop(object)) { | |
| 1975 // Ignore monitor contended enter for vm internal object. | |
| 1976 return; | |
| 1977 } | |
| 1978 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 1979 if (state == NULL) { | |
| 1980 return; | |
| 1981 } | |
| 1982 | |
| 1983 HandleMark hm(thread); | |
| 1984 Handle h(thread, object); | |
| 1985 | |
| 1986 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 1987 ("JVMTI [%s] montior contended enter event triggered", | |
| 1988 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1989 | |
| 1990 JvmtiEnvThreadStateIterator it(state); | |
| 1991 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 1992 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTER)) { | |
| 1993 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, | |
| 1994 ("JVMTI [%s] monitor contended enter event sent", | |
| 1995 JvmtiTrace::safe_get_thread_name(thread))); | |
| 1996 JvmtiMonitorEventMark jem(thread, h()); | |
| 1997 JvmtiEnv *env = ets->get_env(); | |
| 1998 JvmtiThreadEventTransition jet(thread); | |
| 1999 jvmtiEventMonitorContendedEnter callback = env->callbacks()->MonitorContendedEnter; | |
| 2000 if (callback != NULL) { | |
| 2001 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2002 } | |
| 2003 } | |
| 2004 } | |
| 2005 } | |
| 2006 | |
| 2007 void JvmtiExport::post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) { | |
| 2008 oop object = (oop)obj_mntr->object(); | |
| 2009 if (!ServiceUtil::visible_oop(object)) { | |
| 2010 // Ignore monitor contended entered for vm internal object. | |
| 2011 return; | |
| 2012 } | |
| 2013 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2014 if (state == NULL) { | |
| 2015 return; | |
| 2016 } | |
| 2017 | |
| 2018 HandleMark hm(thread); | |
| 2019 Handle h(thread, object); | |
| 2020 | |
| 2021 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2022 ("JVMTI [%s] montior contended entered event triggered", | |
| 2023 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2024 | |
| 2025 JvmtiEnvThreadStateIterator it(state); | |
| 2026 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2027 if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED)) { | |
| 2028 EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, | |
| 2029 ("JVMTI [%s] monitor contended enter event sent", | |
| 2030 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2031 JvmtiMonitorEventMark jem(thread, h()); | |
| 2032 JvmtiEnv *env = ets->get_env(); | |
| 2033 JvmtiThreadEventTransition jet(thread); | |
| 2034 jvmtiEventMonitorContendedEntered callback = env->callbacks()->MonitorContendedEntered; | |
| 2035 if (callback != NULL) { | |
| 2036 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); | |
| 2037 } | |
| 2038 } | |
| 2039 } | |
| 2040 } | |
| 2041 | |
| 2042 void JvmtiExport::post_monitor_wait(JavaThread *thread, oop object, | |
| 2043 jlong timeout) { | |
| 2044 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2045 if (state == NULL) { | |
| 2046 return; | |
| 2047 } | |
| 2048 | |
| 2049 HandleMark hm(thread); | |
| 2050 Handle h(thread, object); | |
| 2051 | |
| 2052 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2053 ("JVMTI [%s] montior wait event triggered", | |
| 2054 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2055 | |
| 2056 JvmtiEnvThreadStateIterator it(state); | |
| 2057 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2058 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAIT)) { | |
| 2059 EVT_TRACE(JVMTI_EVENT_MONITOR_WAIT, | |
| 2060 ("JVMTI [%s] monitor wait event sent ", | |
| 2061 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2062 JvmtiMonitorEventMark jem(thread, h()); | |
| 2063 JvmtiEnv *env = ets->get_env(); | |
| 2064 JvmtiThreadEventTransition jet(thread); | |
| 2065 jvmtiEventMonitorWait callback = env->callbacks()->MonitorWait; | |
| 2066 if (callback != NULL) { | |
| 2067 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2068 jem.jni_object(), timeout); | |
| 2069 } | |
| 2070 } | |
| 2071 } | |
| 2072 } | |
| 2073 | |
| 2074 void JvmtiExport::post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) { | |
| 2075 oop object = (oop)obj_mntr->object(); | |
| 2076 if (!ServiceUtil::visible_oop(object)) { | |
| 2077 // Ignore monitor waited for vm internal object. | |
| 2078 return; | |
| 2079 } | |
| 2080 JvmtiThreadState *state = thread->jvmti_thread_state(); | |
| 2081 if (state == NULL) { | |
| 2082 return; | |
| 2083 } | |
| 2084 | |
| 2085 HandleMark hm(thread); | |
| 2086 Handle h(thread, object); | |
| 2087 | |
| 2088 EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2089 ("JVMTI [%s] montior waited event triggered", | |
| 2090 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2091 | |
| 2092 JvmtiEnvThreadStateIterator it(state); | |
| 2093 for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { | |
| 2094 if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAITED)) { | |
| 2095 EVT_TRACE(JVMTI_EVENT_MONITOR_WAITED, | |
| 2096 ("JVMTI [%s] monitor waited event sent ", | |
| 2097 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2098 JvmtiMonitorEventMark jem(thread, h()); | |
| 2099 JvmtiEnv *env = ets->get_env(); | |
| 2100 JvmtiThreadEventTransition jet(thread); | |
| 2101 jvmtiEventMonitorWaited callback = env->callbacks()->MonitorWaited; | |
| 2102 if (callback != NULL) { | |
| 2103 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2104 jem.jni_object(), timed_out); | |
| 2105 } | |
| 2106 } | |
| 2107 } | |
| 2108 } | |
| 2109 | |
| 2110 | |
| 2111 void JvmtiExport::post_vm_object_alloc(JavaThread *thread, oop object) { | |
| 2112 EVT_TRIG_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Trg vm object alloc triggered", | |
| 2113 JvmtiTrace::safe_get_thread_name(thread))); | |
| 2114 if (object == NULL) { | |
| 2115 return; | |
| 2116 } | |
| 2117 HandleMark hm(thread); | |
| 2118 Handle h(thread, object); | |
| 2119 JvmtiEnvIterator it; | |
| 2120 for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { | |
| 2121 if (env->is_enabled(JVMTI_EVENT_VM_OBJECT_ALLOC)) { | |
| 2122 EVT_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Evt vmobject alloc sent %s", | |
| 2123 JvmtiTrace::safe_get_thread_name(thread), | |
|
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2124 object==NULL? "NULL" : Klass::cast(java_lang_Class::as_Klass(object))->external_name())); |
| 0 | 2125 |
| 2126 JvmtiVMObjectAllocEventMark jem(thread, h()); | |
| 2127 JvmtiJavaThreadEventTransition jet(thread); | |
| 2128 jvmtiEventVMObjectAlloc callback = env->callbacks()->VMObjectAlloc; | |
| 2129 if (callback != NULL) { | |
| 2130 (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), | |
| 2131 jem.jni_jobject(), jem.jni_class(), jem.size()); | |
| 2132 } | |
| 2133 } | |
| 2134 } | |
| 2135 } | |
| 2136 | |
| 2137 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2138 | |
| 2139 void JvmtiExport::cleanup_thread(JavaThread* thread) { | |
| 2140 assert(JavaThread::current() == thread, "thread is not current"); | |
|
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2141 MutexLocker mu(JvmtiThreadState_lock); |
| 0 | 2142 |
|
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2143 if (thread->jvmti_thread_state() != NULL) { |
|
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2144 // This has to happen after the thread state is removed, which is |
|
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2145 // why it is not in post_thread_end_event like its complement |
|
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|
2146 // Maybe both these functions should be rolled into the posts? |
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2147 JvmtiEventController::thread_ended(thread); |
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|
2148 } |
| 0 | 2149 } |
| 2150 | |
| 2151 void JvmtiExport::oops_do(OopClosure* f) { | |
| 2152 JvmtiCurrentBreakpoints::oops_do(f); | |
| 2153 JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(f); | |
| 2154 } | |
| 2155 | |
|
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|
2156 void JvmtiExport::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f) { |
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2157 JvmtiTagMap::weak_oops_do(is_alive, f); |
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2158 } |
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2159 |
|
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2160 void JvmtiExport::gc_epilogue() { |
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2161 JvmtiCurrentBreakpoints::gc_epilogue(); |
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2162 } |
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2163 |
| 0 | 2164 // Onload raw monitor transition. |
| 2165 void JvmtiExport::transition_pending_onload_raw_monitors() { | |
| 2166 JvmtiPendingMonitors::transition_raw_monitors(); | |
| 2167 } | |
| 2168 | |
| 2169 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2170 | |
| 2171 // type for the Agent_OnAttach entry point | |
| 2172 extern "C" { | |
| 2173 typedef jint (JNICALL *OnAttachEntry_t)(JavaVM*, char *, void *); | |
| 2174 } | |
| 2175 | |
| 2176 #ifndef SERVICES_KERNEL | |
| 2177 jint JvmtiExport::load_agent_library(AttachOperation* op, outputStream* st) { | |
| 2178 char ebuf[1024]; | |
| 2179 char buffer[JVM_MAXPATHLEN]; | |
| 2180 void* library; | |
| 2181 jint result = JNI_ERR; | |
| 2182 | |
| 2183 // get agent name and options | |
| 2184 const char* agent = op->arg(0); | |
| 2185 const char* absParam = op->arg(1); | |
| 2186 const char* options = op->arg(2); | |
| 2187 | |
| 2188 // The abs paramter should be "true" or "false" | |
| 2189 bool is_absolute_path = (absParam != NULL) && (strcmp(absParam,"true")==0); | |
| 2190 | |
| 2191 | |
| 2192 // If the path is absolute we attempt to load the library. Otherwise we try to | |
| 2193 // load it from the standard dll directory. | |
| 2194 | |
| 2195 if (is_absolute_path) { | |
|
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|
2196 library = os::dll_load(agent, ebuf, sizeof ebuf); |
| 0 | 2197 } else { |
| 2198 // Try to load the agent from the standard dll directory | |
|
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|
2199 os::dll_build_name(buffer, sizeof(buffer), Arguments::get_dll_dir(), agent); |
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|
2200 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
| 0 | 2201 if (library == NULL) { |
| 2202 // not found - try local path | |
| 2203 char ns[1] = {0}; | |
|
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2204 os::dll_build_name(buffer, sizeof(buffer), ns, agent); |
|
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|
2205 library = os::dll_load(buffer, ebuf, sizeof ebuf); |
| 0 | 2206 } |
| 2207 } | |
| 2208 | |
| 2209 // If the library was loaded then we attempt to invoke the Agent_OnAttach | |
| 2210 // function | |
| 2211 if (library != NULL) { | |
| 2212 | |
| 2213 // Lookup the Agent_OnAttach function | |
| 2214 OnAttachEntry_t on_attach_entry = NULL; | |
| 2215 const char *on_attach_symbols[] = AGENT_ONATTACH_SYMBOLS; | |
| 2216 for (uint symbol_index = 0; symbol_index < ARRAY_SIZE(on_attach_symbols); symbol_index++) { | |
| 2217 on_attach_entry = | |
|
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|
2218 CAST_TO_FN_PTR(OnAttachEntry_t, os::dll_lookup(library, on_attach_symbols[symbol_index])); |
| 0 | 2219 if (on_attach_entry != NULL) break; |
| 2220 } | |
| 2221 | |
| 2222 if (on_attach_entry == NULL) { | |
| 2223 // Agent_OnAttach missing - unload library | |
|
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|
2224 os::dll_unload(library); |
| 0 | 2225 } else { |
| 2226 // Invoke the Agent_OnAttach function | |
| 2227 JavaThread* THREAD = JavaThread::current(); | |
| 2228 { | |
| 2229 extern struct JavaVM_ main_vm; | |
| 2230 JvmtiThreadEventMark jem(THREAD); | |
| 2231 JvmtiJavaThreadEventTransition jet(THREAD); | |
| 2232 | |
| 2233 result = (*on_attach_entry)(&main_vm, (char*)options, NULL); | |
| 2234 } | |
| 2235 | |
| 2236 // Agent_OnAttach may have used JNI | |
| 2237 if (HAS_PENDING_EXCEPTION) { | |
| 2238 CLEAR_PENDING_EXCEPTION; | |
| 2239 } | |
| 2240 | |
| 2241 // If OnAttach returns JNI_OK then we add it to the list of | |
| 2242 // agent libraries so that we can call Agent_OnUnload later. | |
| 2243 if (result == JNI_OK) { | |
| 2244 Arguments::add_loaded_agent(agent, (char*)options, is_absolute_path, library); | |
| 2245 } | |
| 2246 | |
| 2247 // Agent_OnAttach executed so completion status is JNI_OK | |
| 2248 st->print_cr("%d", result); | |
| 2249 result = JNI_OK; | |
| 2250 } | |
| 2251 } | |
| 2252 return result; | |
| 2253 } | |
| 2254 #endif // SERVICES_KERNEL | |
| 2255 | |
| 2256 //////////////////////////////////////////////////////////////////////////////////////////////// | |
| 2257 | |
| 2258 // Setup current current thread for event collection. | |
| 2259 void JvmtiEventCollector::setup_jvmti_thread_state() { | |
| 2260 // set this event collector to be the current one. | |
| 2261 JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); | |
|
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2262 // state can only be NULL if the current thread is exiting which |
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2263 // should not happen since we're trying to configure for event collection |
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2264 guarantee(state != NULL, "exiting thread called setup_jvmti_thread_state"); |
| 0 | 2265 if (is_vm_object_alloc_event()) { |
| 2266 _prev = state->get_vm_object_alloc_event_collector(); | |
| 2267 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)this); | |
| 2268 } else if (is_dynamic_code_event()) { | |
| 2269 _prev = state->get_dynamic_code_event_collector(); | |
| 2270 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)this); | |
| 2271 } | |
| 2272 } | |
| 2273 | |
| 2274 // Unset current event collection in this thread and reset it with previous | |
| 2275 // collector. | |
| 2276 void JvmtiEventCollector::unset_jvmti_thread_state() { | |
| 2277 JvmtiThreadState* state = JavaThread::current()->jvmti_thread_state(); | |
| 2278 if (state != NULL) { | |
| 2279 // restore the previous event collector (if any) | |
| 2280 if (is_vm_object_alloc_event()) { | |
| 2281 if (state->get_vm_object_alloc_event_collector() == this) { | |
| 2282 state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)_prev); | |
| 2283 } else { | |
| 2284 // this thread's jvmti state was created during the scope of | |
| 2285 // the event collector. | |
| 2286 } | |
| 2287 } else { | |
| 2288 if (is_dynamic_code_event()) { | |
| 2289 if (state->get_dynamic_code_event_collector() == this) { | |
| 2290 state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)_prev); | |
| 2291 } else { | |
| 2292 // this thread's jvmti state was created during the scope of | |
| 2293 // the event collector. | |
| 2294 } | |
| 2295 } | |
| 2296 } | |
| 2297 } | |
| 2298 } | |
| 2299 | |
| 2300 // create the dynamic code event collector | |
| 2301 JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(NULL) { | |
| 2302 if (JvmtiExport::should_post_dynamic_code_generated()) { | |
| 2303 setup_jvmti_thread_state(); | |
| 2304 } | |
| 2305 } | |
| 2306 | |
| 2307 // iterate over any code blob descriptors collected and post a | |
| 2308 // DYNAMIC_CODE_GENERATED event to the profiler. | |
| 2309 JvmtiDynamicCodeEventCollector::~JvmtiDynamicCodeEventCollector() { | |
| 2310 assert(!JavaThread::current()->owns_locks(), "all locks must be released to post deferred events"); | |
| 2311 // iterate over any code blob descriptors that we collected | |
| 2312 if (_code_blobs != NULL) { | |
| 2313 for (int i=0; i<_code_blobs->length(); i++) { | |
| 2314 JvmtiCodeBlobDesc* blob = _code_blobs->at(i); | |
| 2315 JvmtiExport::post_dynamic_code_generated(blob->name(), blob->code_begin(), blob->code_end()); | |
| 2316 FreeHeap(blob); | |
| 2317 } | |
| 2318 delete _code_blobs; | |
| 2319 } | |
| 2320 unset_jvmti_thread_state(); | |
| 2321 } | |
| 2322 | |
| 2323 // register a stub | |
| 2324 void JvmtiDynamicCodeEventCollector::register_stub(const char* name, address start, address end) { | |
| 2325 if (_code_blobs == NULL) { | |
| 6197 | 2326 _code_blobs = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<JvmtiCodeBlobDesc*>(1,true); |
| 0 | 2327 } |
| 2328 _code_blobs->append(new JvmtiCodeBlobDesc(name, start, end)); | |
| 2329 } | |
| 2330 | |
| 2331 // Setup current thread to record vm allocated objects. | |
| 2332 JvmtiVMObjectAllocEventCollector::JvmtiVMObjectAllocEventCollector() : _allocated(NULL) { | |
| 2333 if (JvmtiExport::should_post_vm_object_alloc()) { | |
| 2334 _enable = true; | |
| 2335 setup_jvmti_thread_state(); | |
| 2336 } else { | |
| 2337 _enable = false; | |
| 2338 } | |
| 2339 } | |
| 2340 | |
| 2341 // Post vm_object_alloc event for vm allocated objects visible to java | |
| 2342 // world. | |
| 2343 JvmtiVMObjectAllocEventCollector::~JvmtiVMObjectAllocEventCollector() { | |
| 2344 if (_allocated != NULL) { | |
| 2345 set_enabled(false); | |
| 2346 for (int i = 0; i < _allocated->length(); i++) { | |
| 2347 oop obj = _allocated->at(i); | |
| 2348 if (ServiceUtil::visible_oop(obj)) { | |
| 2349 JvmtiExport::post_vm_object_alloc(JavaThread::current(), obj); | |
| 2350 } | |
| 2351 } | |
| 2352 delete _allocated; | |
| 2353 } | |
| 2354 unset_jvmti_thread_state(); | |
| 2355 } | |
| 2356 | |
| 2357 void JvmtiVMObjectAllocEventCollector::record_allocation(oop obj) { | |
| 2358 assert(is_enabled(), "VM object alloc event collector is not enabled"); | |
| 2359 if (_allocated == NULL) { | |
| 6197 | 2360 _allocated = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<oop>(1, true); |
| 0 | 2361 } |
| 2362 _allocated->push(obj); | |
| 2363 } | |
| 2364 | |
| 2365 // GC support. | |
| 2366 void JvmtiVMObjectAllocEventCollector::oops_do(OopClosure* f) { | |
| 2367 if (_allocated != NULL) { | |
| 2368 for(int i=_allocated->length() - 1; i >= 0; i--) { | |
| 2369 if (_allocated->at(i) != NULL) { | |
| 2370 f->do_oop(_allocated->adr_at(i)); | |
| 2371 } | |
| 2372 } | |
| 2373 } | |
| 2374 } | |
| 2375 | |
| 2376 void JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(OopClosure* f) { | |
| 2377 // no-op if jvmti not enabled | |
| 2378 if (!JvmtiEnv::environments_might_exist()) { | |
| 2379 return; | |
| 2380 } | |
| 2381 | |
| 2382 // Runs at safepoint. So no need to acquire Threads_lock. | |
| 2383 for (JavaThread *jthr = Threads::first(); jthr != NULL; jthr = jthr->next()) { | |
| 2384 JvmtiThreadState *state = jthr->jvmti_thread_state(); | |
| 2385 if (state != NULL) { | |
| 2386 JvmtiVMObjectAllocEventCollector *collector; | |
| 2387 collector = state->get_vm_object_alloc_event_collector(); | |
| 2388 while (collector != NULL) { | |
| 2389 collector->oops_do(f); | |
| 2390 collector = (JvmtiVMObjectAllocEventCollector *)collector->get_prev(); | |
| 2391 } | |
| 2392 } | |
| 2393 } | |
| 2394 } | |
| 2395 | |
| 2396 | |
| 2397 // Disable collection of VMObjectAlloc events | |
| 2398 NoJvmtiVMObjectAllocMark::NoJvmtiVMObjectAllocMark() : _collector(NULL) { | |
| 2399 // a no-op if VMObjectAlloc event is not enabled | |
| 2400 if (!JvmtiExport::should_post_vm_object_alloc()) { | |
| 2401 return; | |
| 2402 } | |
| 2403 Thread* thread = ThreadLocalStorage::thread(); | |
| 2404 if (thread != NULL && thread->is_Java_thread()) { | |
| 2405 JavaThread* current_thread = (JavaThread*)thread; | |
| 2406 JvmtiThreadState *state = current_thread->jvmti_thread_state(); | |
| 2407 if (state != NULL) { | |
| 2408 JvmtiVMObjectAllocEventCollector *collector; | |
| 2409 collector = state->get_vm_object_alloc_event_collector(); | |
| 2410 if (collector != NULL && collector->is_enabled()) { | |
| 2411 _collector = collector; | |
| 2412 _collector->set_enabled(false); | |
| 2413 } | |
| 2414 } | |
| 2415 } | |
| 2416 } | |
| 2417 | |
| 2418 // Re-Enable collection of VMObjectAlloc events (if previously enabled) | |
| 2419 NoJvmtiVMObjectAllocMark::~NoJvmtiVMObjectAllocMark() { | |
| 2420 if (was_enabled()) { | |
| 2421 _collector->set_enabled(true); | |
| 2422 } | |
| 2423 }; | |
| 2424 | |
|
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2425 JvmtiGCMarker::JvmtiGCMarker() { |
| 0 | 2426 // if there aren't any JVMTI environments then nothing to do |
| 2427 if (!JvmtiEnv::environments_might_exist()) { | |
| 2428 return; | |
| 2429 } | |
| 2430 | |
| 2431 if (JvmtiExport::should_post_garbage_collection_start()) { | |
| 2432 JvmtiExport::post_garbage_collection_start(); | |
| 2433 } | |
| 2434 | |
|
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2435 if (SafepointSynchronize::is_at_safepoint()) { |
|
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|
2436 // Do clean up tasks that need to be done at a safepoint |
|
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2437 JvmtiEnvBase::check_for_periodic_clean_up(); |
| 0 | 2438 } |
| 2439 } | |
| 2440 | |
| 2441 JvmtiGCMarker::~JvmtiGCMarker() { | |
| 2442 // if there aren't any JVMTI environments then nothing to do | |
| 2443 if (!JvmtiEnv::environments_might_exist()) { | |
| 2444 return; | |
| 2445 } | |
| 2446 | |
| 2447 // JVMTI notify gc finish | |
| 2448 if (JvmtiExport::should_post_garbage_collection_finish()) { | |
| 2449 JvmtiExport::post_garbage_collection_finish(); | |
| 2450 } | |
| 2451 } | |
| 2452 #endif // JVMTI_KERNEL |