Thu, 09 Dec 2010 15:04:26 -0500
7004582: Add GetThisObject() function to JVMTI 1.2
Summary: Add 'GetThisObject' function
Reviewed-by: never, coleenp
duke@435 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "classfile/systemDictionary.hpp" |
stefank@2314 | 27 | #include "code/nmethod.hpp" |
stefank@2314 | 28 | #include "code/pcDesc.hpp" |
stefank@2314 | 29 | #include "code/scopeDesc.hpp" |
stefank@2314 | 30 | #include "interpreter/interpreter.hpp" |
stefank@2314 | 31 | #include "jvmtifiles/jvmtiEnv.hpp" |
stefank@2314 | 32 | #include "memory/resourceArea.hpp" |
stefank@2314 | 33 | #include "oops/objArrayKlass.hpp" |
stefank@2314 | 34 | #include "oops/objArrayOop.hpp" |
stefank@2314 | 35 | #include "prims/jvmtiCodeBlobEvents.hpp" |
stefank@2314 | 36 | #include "prims/jvmtiEventController.hpp" |
stefank@2314 | 37 | #include "prims/jvmtiEventController.inline.hpp" |
stefank@2314 | 38 | #include "prims/jvmtiExport.hpp" |
stefank@2314 | 39 | #include "prims/jvmtiImpl.hpp" |
stefank@2314 | 40 | #include "prims/jvmtiManageCapabilities.hpp" |
stefank@2314 | 41 | #include "prims/jvmtiRawMonitor.hpp" |
stefank@2314 | 42 | #include "prims/jvmtiTagMap.hpp" |
stefank@2314 | 43 | #include "prims/jvmtiThreadState.inline.hpp" |
stefank@2314 | 44 | #include "runtime/arguments.hpp" |
stefank@2314 | 45 | #include "runtime/handles.hpp" |
stefank@2314 | 46 | #include "runtime/interfaceSupport.hpp" |
stefank@2314 | 47 | #include "runtime/objectMonitor.hpp" |
stefank@2314 | 48 | #include "runtime/objectMonitor.inline.hpp" |
stefank@2314 | 49 | #include "runtime/thread.hpp" |
stefank@2314 | 50 | #include "runtime/vframe.hpp" |
stefank@2314 | 51 | #include "services/attachListener.hpp" |
stefank@2314 | 52 | #include "services/serviceUtil.hpp" |
stefank@2314 | 53 | #ifndef SERIALGC |
stefank@2314 | 54 | #include "gc_implementation/parallelScavenge/psMarkSweep.hpp" |
stefank@2314 | 55 | #endif |
duke@435 | 56 | |
duke@435 | 57 | #ifdef JVMTI_TRACE |
duke@435 | 58 | #define EVT_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_SENT) != 0) { SafeResourceMark rm; tty->print_cr out; } |
duke@435 | 59 | #define EVT_TRIG_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_TRIGGER) != 0) { SafeResourceMark rm; tty->print_cr out; } |
duke@435 | 60 | #else |
duke@435 | 61 | #define EVT_TRIG_TRACE(evt,out) |
duke@435 | 62 | #define EVT_TRACE(evt,out) |
duke@435 | 63 | #endif |
duke@435 | 64 | |
duke@435 | 65 | /////////////////////////////////////////////////////////////// |
duke@435 | 66 | // |
duke@435 | 67 | // JvmtiEventTransition |
duke@435 | 68 | // |
duke@435 | 69 | // TO DO -- |
duke@435 | 70 | // more handle purging |
duke@435 | 71 | |
duke@435 | 72 | // Use this for JavaThreads and state is _thread_in_vm. |
duke@435 | 73 | class JvmtiJavaThreadEventTransition : StackObj { |
duke@435 | 74 | private: |
duke@435 | 75 | ResourceMark _rm; |
duke@435 | 76 | ThreadToNativeFromVM _transition; |
duke@435 | 77 | HandleMark _hm; |
duke@435 | 78 | |
duke@435 | 79 | public: |
duke@435 | 80 | JvmtiJavaThreadEventTransition(JavaThread *thread) : |
duke@435 | 81 | _rm(), |
duke@435 | 82 | _transition(thread), |
duke@435 | 83 | _hm(thread) {}; |
duke@435 | 84 | }; |
duke@435 | 85 | |
duke@435 | 86 | // For JavaThreads which are not in _thread_in_vm state |
duke@435 | 87 | // and other system threads use this. |
duke@435 | 88 | class JvmtiThreadEventTransition : StackObj { |
duke@435 | 89 | private: |
duke@435 | 90 | ResourceMark _rm; |
duke@435 | 91 | HandleMark _hm; |
duke@435 | 92 | JavaThreadState _saved_state; |
duke@435 | 93 | JavaThread *_jthread; |
duke@435 | 94 | |
duke@435 | 95 | public: |
duke@435 | 96 | JvmtiThreadEventTransition(Thread *thread) : _rm(), _hm() { |
duke@435 | 97 | if (thread->is_Java_thread()) { |
duke@435 | 98 | _jthread = (JavaThread *)thread; |
duke@435 | 99 | _saved_state = _jthread->thread_state(); |
duke@435 | 100 | if (_saved_state == _thread_in_Java) { |
duke@435 | 101 | ThreadStateTransition::transition_from_java(_jthread, _thread_in_native); |
duke@435 | 102 | } else { |
duke@435 | 103 | ThreadStateTransition::transition(_jthread, _saved_state, _thread_in_native); |
duke@435 | 104 | } |
duke@435 | 105 | } else { |
duke@435 | 106 | _jthread = NULL; |
duke@435 | 107 | } |
duke@435 | 108 | } |
duke@435 | 109 | |
duke@435 | 110 | ~JvmtiThreadEventTransition() { |
duke@435 | 111 | if (_jthread != NULL) |
duke@435 | 112 | ThreadStateTransition::transition_from_native(_jthread, _saved_state); |
duke@435 | 113 | } |
duke@435 | 114 | }; |
duke@435 | 115 | |
duke@435 | 116 | |
duke@435 | 117 | /////////////////////////////////////////////////////////////// |
duke@435 | 118 | // |
duke@435 | 119 | // JvmtiEventMark |
duke@435 | 120 | // |
duke@435 | 121 | |
duke@435 | 122 | class JvmtiEventMark : public StackObj { |
duke@435 | 123 | private: |
duke@435 | 124 | JavaThread *_thread; |
duke@435 | 125 | JNIEnv* _jni_env; |
duke@435 | 126 | bool _exception_detected; |
duke@435 | 127 | bool _exception_caught; |
duke@435 | 128 | #if 0 |
duke@435 | 129 | JNIHandleBlock* _hblock; |
duke@435 | 130 | #endif |
duke@435 | 131 | |
duke@435 | 132 | public: |
duke@435 | 133 | JvmtiEventMark(JavaThread *thread) : _thread(thread), |
duke@435 | 134 | _jni_env(thread->jni_environment()) { |
duke@435 | 135 | #if 0 |
duke@435 | 136 | _hblock = thread->active_handles(); |
duke@435 | 137 | _hblock->clear_thoroughly(); // so we can be safe |
duke@435 | 138 | #else |
duke@435 | 139 | // we want to use the code above - but that needs the JNIHandle changes - later... |
duke@435 | 140 | // for now, steal JNI push local frame code |
duke@435 | 141 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 142 | // we are before an event. |
duke@435 | 143 | // Save current jvmti thread exception state. |
duke@435 | 144 | if (state != NULL) { |
duke@435 | 145 | _exception_detected = state->is_exception_detected(); |
duke@435 | 146 | _exception_caught = state->is_exception_caught(); |
duke@435 | 147 | } else { |
duke@435 | 148 | _exception_detected = false; |
duke@435 | 149 | _exception_caught = false; |
duke@435 | 150 | } |
duke@435 | 151 | |
duke@435 | 152 | JNIHandleBlock* old_handles = thread->active_handles(); |
duke@435 | 153 | JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); |
duke@435 | 154 | assert(new_handles != NULL, "should not be NULL"); |
duke@435 | 155 | new_handles->set_pop_frame_link(old_handles); |
duke@435 | 156 | thread->set_active_handles(new_handles); |
duke@435 | 157 | #endif |
duke@435 | 158 | assert(thread == JavaThread::current(), "thread must be current!"); |
duke@435 | 159 | thread->frame_anchor()->make_walkable(thread); |
duke@435 | 160 | }; |
duke@435 | 161 | |
duke@435 | 162 | ~JvmtiEventMark() { |
duke@435 | 163 | #if 0 |
duke@435 | 164 | _hblock->clear(); // for consistency with future correct behavior |
duke@435 | 165 | #else |
duke@435 | 166 | // we want to use the code above - but that needs the JNIHandle changes - later... |
duke@435 | 167 | // for now, steal JNI pop local frame code |
duke@435 | 168 | JNIHandleBlock* old_handles = _thread->active_handles(); |
duke@435 | 169 | JNIHandleBlock* new_handles = old_handles->pop_frame_link(); |
duke@435 | 170 | assert(new_handles != NULL, "should not be NULL"); |
duke@435 | 171 | _thread->set_active_handles(new_handles); |
duke@435 | 172 | // Note that we set the pop_frame_link to NULL explicitly, otherwise |
duke@435 | 173 | // the release_block call will release the blocks. |
duke@435 | 174 | old_handles->set_pop_frame_link(NULL); |
duke@435 | 175 | JNIHandleBlock::release_block(old_handles, _thread); // may block |
duke@435 | 176 | #endif |
duke@435 | 177 | |
duke@435 | 178 | JvmtiThreadState* state = _thread->jvmti_thread_state(); |
duke@435 | 179 | // we are continuing after an event. |
duke@435 | 180 | if (state != NULL) { |
duke@435 | 181 | // Restore the jvmti thread exception state. |
duke@435 | 182 | if (_exception_detected) { |
duke@435 | 183 | state->set_exception_detected(); |
duke@435 | 184 | } |
duke@435 | 185 | if (_exception_caught) { |
duke@435 | 186 | state->set_exception_caught(); |
duke@435 | 187 | } |
duke@435 | 188 | } |
duke@435 | 189 | } |
duke@435 | 190 | |
duke@435 | 191 | #if 0 |
duke@435 | 192 | jobject to_jobject(oop obj) { return obj == NULL? NULL : _hblock->allocate_handle_fast(obj); } |
duke@435 | 193 | #else |
duke@435 | 194 | // we want to use the code above - but that needs the JNIHandle changes - later... |
duke@435 | 195 | // for now, use regular make_local |
duke@435 | 196 | jobject to_jobject(oop obj) { return JNIHandles::make_local(_thread,obj); } |
duke@435 | 197 | #endif |
duke@435 | 198 | |
duke@435 | 199 | jclass to_jclass(klassOop klass) { return (klass == NULL ? NULL : (jclass)to_jobject(Klass::cast(klass)->java_mirror())); } |
duke@435 | 200 | |
duke@435 | 201 | jmethodID to_jmethodID(methodHandle method) { return method->jmethod_id(); } |
duke@435 | 202 | |
duke@435 | 203 | JNIEnv* jni_env() { return _jni_env; } |
duke@435 | 204 | }; |
duke@435 | 205 | |
duke@435 | 206 | class JvmtiThreadEventMark : public JvmtiEventMark { |
duke@435 | 207 | private: |
duke@435 | 208 | jthread _jt; |
duke@435 | 209 | |
duke@435 | 210 | public: |
duke@435 | 211 | JvmtiThreadEventMark(JavaThread *thread) : |
duke@435 | 212 | JvmtiEventMark(thread) { |
duke@435 | 213 | _jt = (jthread)(to_jobject(thread->threadObj())); |
duke@435 | 214 | }; |
duke@435 | 215 | jthread jni_thread() { return _jt; } |
duke@435 | 216 | }; |
duke@435 | 217 | |
duke@435 | 218 | class JvmtiClassEventMark : public JvmtiThreadEventMark { |
duke@435 | 219 | private: |
duke@435 | 220 | jclass _jc; |
duke@435 | 221 | |
duke@435 | 222 | public: |
duke@435 | 223 | JvmtiClassEventMark(JavaThread *thread, klassOop klass) : |
duke@435 | 224 | JvmtiThreadEventMark(thread) { |
duke@435 | 225 | _jc = to_jclass(klass); |
duke@435 | 226 | }; |
duke@435 | 227 | jclass jni_class() { return _jc; } |
duke@435 | 228 | }; |
duke@435 | 229 | |
duke@435 | 230 | class JvmtiMethodEventMark : public JvmtiThreadEventMark { |
duke@435 | 231 | private: |
duke@435 | 232 | jmethodID _mid; |
duke@435 | 233 | |
duke@435 | 234 | public: |
duke@435 | 235 | JvmtiMethodEventMark(JavaThread *thread, methodHandle method) : |
duke@435 | 236 | JvmtiThreadEventMark(thread), |
duke@435 | 237 | _mid(to_jmethodID(method)) {}; |
duke@435 | 238 | jmethodID jni_methodID() { return _mid; } |
duke@435 | 239 | }; |
duke@435 | 240 | |
duke@435 | 241 | class JvmtiLocationEventMark : public JvmtiMethodEventMark { |
duke@435 | 242 | private: |
duke@435 | 243 | jlocation _loc; |
duke@435 | 244 | |
duke@435 | 245 | public: |
duke@435 | 246 | JvmtiLocationEventMark(JavaThread *thread, methodHandle method, address location) : |
duke@435 | 247 | JvmtiMethodEventMark(thread, method), |
duke@435 | 248 | _loc(location - method->code_base()) {}; |
duke@435 | 249 | jlocation location() { return _loc; } |
duke@435 | 250 | }; |
duke@435 | 251 | |
duke@435 | 252 | class JvmtiExceptionEventMark : public JvmtiLocationEventMark { |
duke@435 | 253 | private: |
duke@435 | 254 | jobject _exc; |
duke@435 | 255 | |
duke@435 | 256 | public: |
duke@435 | 257 | JvmtiExceptionEventMark(JavaThread *thread, methodHandle method, address location, Handle exception) : |
duke@435 | 258 | JvmtiLocationEventMark(thread, method, location), |
duke@435 | 259 | _exc(to_jobject(exception())) {}; |
duke@435 | 260 | jobject exception() { return _exc; } |
duke@435 | 261 | }; |
duke@435 | 262 | |
duke@435 | 263 | class JvmtiClassFileLoadEventMark : public JvmtiThreadEventMark { |
duke@435 | 264 | private: |
duke@435 | 265 | const char *_class_name; |
duke@435 | 266 | jobject _jloader; |
duke@435 | 267 | jobject _protection_domain; |
duke@435 | 268 | jclass _class_being_redefined; |
duke@435 | 269 | |
duke@435 | 270 | public: |
duke@435 | 271 | JvmtiClassFileLoadEventMark(JavaThread *thread, symbolHandle name, |
duke@435 | 272 | Handle class_loader, Handle prot_domain, KlassHandle *class_being_redefined) : JvmtiThreadEventMark(thread) { |
duke@435 | 273 | _class_name = name() != NULL? name->as_utf8() : NULL; |
duke@435 | 274 | _jloader = (jobject)to_jobject(class_loader()); |
duke@435 | 275 | _protection_domain = (jobject)to_jobject(prot_domain()); |
duke@435 | 276 | if (class_being_redefined == NULL) { |
duke@435 | 277 | _class_being_redefined = NULL; |
duke@435 | 278 | } else { |
duke@435 | 279 | _class_being_redefined = (jclass)to_jclass((*class_being_redefined)()); |
duke@435 | 280 | } |
duke@435 | 281 | }; |
duke@435 | 282 | const char *class_name() { |
duke@435 | 283 | return _class_name; |
duke@435 | 284 | } |
duke@435 | 285 | jobject jloader() { |
duke@435 | 286 | return _jloader; |
duke@435 | 287 | } |
duke@435 | 288 | jobject protection_domain() { |
duke@435 | 289 | return _protection_domain; |
duke@435 | 290 | } |
duke@435 | 291 | jclass class_being_redefined() { |
duke@435 | 292 | return _class_being_redefined; |
duke@435 | 293 | } |
duke@435 | 294 | }; |
duke@435 | 295 | |
duke@435 | 296 | ////////////////////////////////////////////////////////////////////////////// |
duke@435 | 297 | |
duke@435 | 298 | int JvmtiExport::_field_access_count = 0; |
duke@435 | 299 | int JvmtiExport::_field_modification_count = 0; |
duke@435 | 300 | |
duke@435 | 301 | bool JvmtiExport::_can_access_local_variables = false; |
duke@435 | 302 | bool JvmtiExport::_can_hotswap_or_post_breakpoint = false; |
duke@435 | 303 | bool JvmtiExport::_can_modify_any_class = false; |
duke@435 | 304 | bool JvmtiExport::_can_walk_any_space = false; |
duke@435 | 305 | |
duke@435 | 306 | bool JvmtiExport::_has_redefined_a_class = false; |
duke@435 | 307 | bool JvmtiExport::_all_dependencies_are_recorded = false; |
duke@435 | 308 | |
duke@435 | 309 | // |
duke@435 | 310 | // field access management |
duke@435 | 311 | // |
duke@435 | 312 | |
duke@435 | 313 | // interpreter generator needs the address of the counter |
duke@435 | 314 | address JvmtiExport::get_field_access_count_addr() { |
duke@435 | 315 | // We don't grab a lock because we don't want to |
duke@435 | 316 | // serialize field access between all threads. This means that a |
duke@435 | 317 | // thread on another processor can see the wrong count value and |
duke@435 | 318 | // may either miss making a needed call into post_field_access() |
duke@435 | 319 | // or will make an unneeded call into post_field_access(). We pay |
duke@435 | 320 | // this price to avoid slowing down the VM when we aren't watching |
duke@435 | 321 | // field accesses. |
duke@435 | 322 | // Other access/mutation safe by virtue of being in VM state. |
duke@435 | 323 | return (address)(&_field_access_count); |
duke@435 | 324 | } |
duke@435 | 325 | |
duke@435 | 326 | // |
duke@435 | 327 | // field modification management |
duke@435 | 328 | // |
duke@435 | 329 | |
duke@435 | 330 | // interpreter generator needs the address of the counter |
duke@435 | 331 | address JvmtiExport::get_field_modification_count_addr() { |
duke@435 | 332 | // We don't grab a lock because we don't |
duke@435 | 333 | // want to serialize field modification between all threads. This |
duke@435 | 334 | // means that a thread on another processor can see the wrong |
duke@435 | 335 | // count value and may either miss making a needed call into |
duke@435 | 336 | // post_field_modification() or will make an unneeded call into |
duke@435 | 337 | // post_field_modification(). We pay this price to avoid slowing |
duke@435 | 338 | // down the VM when we aren't watching field modifications. |
duke@435 | 339 | // Other access/mutation safe by virtue of being in VM state. |
duke@435 | 340 | return (address)(&_field_modification_count); |
duke@435 | 341 | } |
duke@435 | 342 | |
duke@435 | 343 | |
duke@435 | 344 | /////////////////////////////////////////////////////////////// |
duke@435 | 345 | // Functions needed by java.lang.instrument for starting up javaagent. |
duke@435 | 346 | /////////////////////////////////////////////////////////////// |
duke@435 | 347 | |
duke@435 | 348 | jint |
duke@435 | 349 | JvmtiExport::get_jvmti_interface(JavaVM *jvm, void **penv, jint version) { |
dcubed@1556 | 350 | // The JVMTI_VERSION_INTERFACE_JVMTI part of the version number |
dcubed@1556 | 351 | // has already been validated in JNI GetEnv(). |
dcubed@1556 | 352 | int major, minor, micro; |
dcubed@1556 | 353 | |
dcubed@1556 | 354 | // micro version doesn't matter here (yet?) |
dcubed@1556 | 355 | decode_version_values(version, &major, &minor, µ); |
dcubed@1556 | 356 | switch (major) { |
kamg@2330 | 357 | case 1: |
dcubed@1556 | 358 | switch (minor) { |
kamg@2330 | 359 | case 0: // version 1.0.<micro> is recognized |
kamg@2330 | 360 | case 1: // version 1.1.<micro> is recognized |
kamg@2330 | 361 | case 2: // version 1.2.<micro> is recognized |
dcubed@1556 | 362 | break; |
dcubed@1556 | 363 | |
kamg@2330 | 364 | default: |
dcubed@1556 | 365 | return JNI_EVERSION; // unsupported minor version number |
dcubed@1556 | 366 | } |
dcubed@1556 | 367 | break; |
kamg@2330 | 368 | default: |
dcubed@1556 | 369 | return JNI_EVERSION; // unsupported major version number |
dcubed@1556 | 370 | } |
duke@435 | 371 | |
duke@435 | 372 | if (JvmtiEnv::get_phase() == JVMTI_PHASE_LIVE) { |
duke@435 | 373 | JavaThread* current_thread = (JavaThread*) ThreadLocalStorage::thread(); |
duke@435 | 374 | // transition code: native to VM |
duke@435 | 375 | ThreadInVMfromNative __tiv(current_thread); |
duke@435 | 376 | __ENTRY(jvmtiEnv*, JvmtiExport::get_jvmti_interface, current_thread) |
duke@435 | 377 | debug_only(VMNativeEntryWrapper __vew;) |
duke@435 | 378 | |
dcubed@1556 | 379 | JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
duke@435 | 380 | *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
duke@435 | 381 | return JNI_OK; |
duke@435 | 382 | |
duke@435 | 383 | } else if (JvmtiEnv::get_phase() == JVMTI_PHASE_ONLOAD) { |
duke@435 | 384 | // not live, no thread to transition |
dcubed@1556 | 385 | JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version); |
duke@435 | 386 | *penv = jvmti_env->jvmti_external(); // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv* |
duke@435 | 387 | return JNI_OK; |
duke@435 | 388 | |
duke@435 | 389 | } else { |
duke@435 | 390 | // Called at the wrong time |
duke@435 | 391 | *penv = NULL; |
duke@435 | 392 | return JNI_EDETACHED; |
duke@435 | 393 | } |
duke@435 | 394 | } |
duke@435 | 395 | |
dcubed@1556 | 396 | |
dcubed@1556 | 397 | void |
dcubed@1556 | 398 | JvmtiExport::decode_version_values(jint version, int * major, int * minor, |
dcubed@1556 | 399 | int * micro) { |
dcubed@1556 | 400 | *major = (version & JVMTI_VERSION_MASK_MAJOR) >> JVMTI_VERSION_SHIFT_MAJOR; |
dcubed@1556 | 401 | *minor = (version & JVMTI_VERSION_MASK_MINOR) >> JVMTI_VERSION_SHIFT_MINOR; |
dcubed@1556 | 402 | *micro = (version & JVMTI_VERSION_MASK_MICRO) >> JVMTI_VERSION_SHIFT_MICRO; |
dcubed@1556 | 403 | } |
dcubed@1556 | 404 | |
duke@435 | 405 | void JvmtiExport::enter_primordial_phase() { |
duke@435 | 406 | JvmtiEnvBase::set_phase(JVMTI_PHASE_PRIMORDIAL); |
duke@435 | 407 | } |
duke@435 | 408 | |
duke@435 | 409 | void JvmtiExport::enter_start_phase() { |
duke@435 | 410 | JvmtiManageCapabilities::recompute_always_capabilities(); |
duke@435 | 411 | JvmtiEnvBase::set_phase(JVMTI_PHASE_START); |
duke@435 | 412 | } |
duke@435 | 413 | |
duke@435 | 414 | void JvmtiExport::enter_onload_phase() { |
duke@435 | 415 | JvmtiEnvBase::set_phase(JVMTI_PHASE_ONLOAD); |
duke@435 | 416 | } |
duke@435 | 417 | |
duke@435 | 418 | void JvmtiExport::enter_live_phase() { |
duke@435 | 419 | JvmtiEnvBase::set_phase(JVMTI_PHASE_LIVE); |
duke@435 | 420 | } |
duke@435 | 421 | |
duke@435 | 422 | // |
duke@435 | 423 | // JVMTI events that the VM posts to the debugger and also startup agent |
duke@435 | 424 | // and call the agent's premain() for java.lang.instrument. |
duke@435 | 425 | // |
duke@435 | 426 | |
duke@435 | 427 | void JvmtiExport::post_vm_start() { |
duke@435 | 428 | EVT_TRIG_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Trg VM start event triggered" )); |
duke@435 | 429 | |
duke@435 | 430 | // can now enable some events |
duke@435 | 431 | JvmtiEventController::vm_start(); |
duke@435 | 432 | |
duke@435 | 433 | JvmtiEnvIterator it; |
duke@435 | 434 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 435 | if (env->is_enabled(JVMTI_EVENT_VM_START)) { |
duke@435 | 436 | EVT_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Evt VM start event sent" )); |
duke@435 | 437 | |
duke@435 | 438 | JavaThread *thread = JavaThread::current(); |
duke@435 | 439 | JvmtiThreadEventMark jem(thread); |
duke@435 | 440 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 441 | jvmtiEventVMStart callback = env->callbacks()->VMStart; |
duke@435 | 442 | if (callback != NULL) { |
duke@435 | 443 | (*callback)(env->jvmti_external(), jem.jni_env()); |
duke@435 | 444 | } |
duke@435 | 445 | } |
duke@435 | 446 | } |
duke@435 | 447 | } |
duke@435 | 448 | |
duke@435 | 449 | |
duke@435 | 450 | void JvmtiExport::post_vm_initialized() { |
duke@435 | 451 | EVT_TRIG_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Trg VM init event triggered" )); |
duke@435 | 452 | |
duke@435 | 453 | // can now enable events |
duke@435 | 454 | JvmtiEventController::vm_init(); |
duke@435 | 455 | |
duke@435 | 456 | JvmtiEnvIterator it; |
duke@435 | 457 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 458 | if (env->is_enabled(JVMTI_EVENT_VM_INIT)) { |
duke@435 | 459 | EVT_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Evt VM init event sent" )); |
duke@435 | 460 | |
duke@435 | 461 | JavaThread *thread = JavaThread::current(); |
duke@435 | 462 | JvmtiThreadEventMark jem(thread); |
duke@435 | 463 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 464 | jvmtiEventVMInit callback = env->callbacks()->VMInit; |
duke@435 | 465 | if (callback != NULL) { |
duke@435 | 466 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); |
duke@435 | 467 | } |
duke@435 | 468 | } |
duke@435 | 469 | } |
duke@435 | 470 | } |
duke@435 | 471 | |
duke@435 | 472 | |
duke@435 | 473 | void JvmtiExport::post_vm_death() { |
duke@435 | 474 | EVT_TRIG_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Trg VM death event triggered" )); |
duke@435 | 475 | |
duke@435 | 476 | JvmtiEnvIterator it; |
duke@435 | 477 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 478 | if (env->is_enabled(JVMTI_EVENT_VM_DEATH)) { |
duke@435 | 479 | EVT_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Evt VM death event sent" )); |
duke@435 | 480 | |
duke@435 | 481 | JavaThread *thread = JavaThread::current(); |
duke@435 | 482 | JvmtiEventMark jem(thread); |
duke@435 | 483 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 484 | jvmtiEventVMDeath callback = env->callbacks()->VMDeath; |
duke@435 | 485 | if (callback != NULL) { |
duke@435 | 486 | (*callback)(env->jvmti_external(), jem.jni_env()); |
duke@435 | 487 | } |
duke@435 | 488 | } |
duke@435 | 489 | } |
duke@435 | 490 | |
duke@435 | 491 | JvmtiEnvBase::set_phase(JVMTI_PHASE_DEAD); |
duke@435 | 492 | JvmtiEventController::vm_death(); |
duke@435 | 493 | } |
duke@435 | 494 | |
duke@435 | 495 | char** |
duke@435 | 496 | JvmtiExport::get_all_native_method_prefixes(int* count_ptr) { |
duke@435 | 497 | // Have to grab JVMTI thread state lock to be sure environment doesn't |
duke@435 | 498 | // go away while we iterate them. No locks during VM bring-up. |
duke@435 | 499 | if (Threads::number_of_threads() == 0 || SafepointSynchronize::is_at_safepoint()) { |
duke@435 | 500 | return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); |
duke@435 | 501 | } else { |
duke@435 | 502 | MutexLocker mu(JvmtiThreadState_lock); |
duke@435 | 503 | return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr); |
duke@435 | 504 | } |
duke@435 | 505 | } |
duke@435 | 506 | |
duke@435 | 507 | class JvmtiClassFileLoadHookPoster : public StackObj { |
duke@435 | 508 | private: |
duke@435 | 509 | symbolHandle _h_name; |
duke@435 | 510 | Handle _class_loader; |
duke@435 | 511 | Handle _h_protection_domain; |
duke@435 | 512 | unsigned char ** _data_ptr; |
duke@435 | 513 | unsigned char ** _end_ptr; |
duke@435 | 514 | JavaThread * _thread; |
duke@435 | 515 | jint _curr_len; |
duke@435 | 516 | unsigned char * _curr_data; |
duke@435 | 517 | JvmtiEnv * _curr_env; |
duke@435 | 518 | jint * _cached_length_ptr; |
duke@435 | 519 | unsigned char ** _cached_data_ptr; |
duke@435 | 520 | JvmtiThreadState * _state; |
duke@435 | 521 | KlassHandle * _h_class_being_redefined; |
duke@435 | 522 | JvmtiClassLoadKind _load_kind; |
duke@435 | 523 | |
duke@435 | 524 | public: |
duke@435 | 525 | inline JvmtiClassFileLoadHookPoster(symbolHandle h_name, Handle class_loader, |
duke@435 | 526 | Handle h_protection_domain, |
duke@435 | 527 | unsigned char **data_ptr, unsigned char **end_ptr, |
duke@435 | 528 | unsigned char **cached_data_ptr, |
duke@435 | 529 | jint *cached_length_ptr) { |
duke@435 | 530 | _h_name = h_name; |
duke@435 | 531 | _class_loader = class_loader; |
duke@435 | 532 | _h_protection_domain = h_protection_domain; |
duke@435 | 533 | _data_ptr = data_ptr; |
duke@435 | 534 | _end_ptr = end_ptr; |
duke@435 | 535 | _thread = JavaThread::current(); |
duke@435 | 536 | _curr_len = *end_ptr - *data_ptr; |
duke@435 | 537 | _curr_data = *data_ptr; |
duke@435 | 538 | _curr_env = NULL; |
duke@435 | 539 | _cached_length_ptr = cached_length_ptr; |
duke@435 | 540 | _cached_data_ptr = cached_data_ptr; |
duke@435 | 541 | *_cached_length_ptr = 0; |
duke@435 | 542 | *_cached_data_ptr = NULL; |
duke@435 | 543 | |
duke@435 | 544 | _state = _thread->jvmti_thread_state(); |
duke@435 | 545 | if (_state != NULL) { |
duke@435 | 546 | _h_class_being_redefined = _state->get_class_being_redefined(); |
duke@435 | 547 | _load_kind = _state->get_class_load_kind(); |
duke@435 | 548 | // Clear class_being_redefined flag here. The action |
duke@435 | 549 | // from agent handler could generate a new class file load |
duke@435 | 550 | // hook event and if it is not cleared the new event generated |
duke@435 | 551 | // from regular class file load could have this stale redefined |
duke@435 | 552 | // class handle info. |
duke@435 | 553 | _state->clear_class_being_redefined(); |
duke@435 | 554 | } else { |
duke@435 | 555 | // redefine and retransform will always set the thread state |
duke@435 | 556 | _h_class_being_redefined = (KlassHandle *) NULL; |
duke@435 | 557 | _load_kind = jvmti_class_load_kind_load; |
duke@435 | 558 | } |
duke@435 | 559 | } |
duke@435 | 560 | |
duke@435 | 561 | void post() { |
duke@435 | 562 | // EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, |
duke@435 | 563 | // ("JVMTI [%s] class file load hook event triggered", |
duke@435 | 564 | // JvmtiTrace::safe_get_thread_name(_thread))); |
duke@435 | 565 | post_all_envs(); |
duke@435 | 566 | copy_modified_data(); |
duke@435 | 567 | } |
duke@435 | 568 | |
duke@435 | 569 | private: |
duke@435 | 570 | void post_all_envs() { |
duke@435 | 571 | if (_load_kind != jvmti_class_load_kind_retransform) { |
duke@435 | 572 | // for class load and redefine, |
duke@435 | 573 | // call the non-retransformable agents |
duke@435 | 574 | JvmtiEnvIterator it; |
duke@435 | 575 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 576 | if (!env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { |
duke@435 | 577 | // non-retransformable agents cannot retransform back, |
duke@435 | 578 | // so no need to cache the original class file bytes |
duke@435 | 579 | post_to_env(env, false); |
duke@435 | 580 | } |
duke@435 | 581 | } |
duke@435 | 582 | } |
duke@435 | 583 | JvmtiEnvIterator it; |
duke@435 | 584 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 585 | // retransformable agents get all events |
duke@435 | 586 | if (env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) { |
duke@435 | 587 | // retransformable agents need to cache the original class file |
duke@435 | 588 | // bytes if changes are made via the ClassFileLoadHook |
duke@435 | 589 | post_to_env(env, true); |
duke@435 | 590 | } |
duke@435 | 591 | } |
duke@435 | 592 | } |
duke@435 | 593 | |
duke@435 | 594 | void post_to_env(JvmtiEnv* env, bool caching_needed) { |
duke@435 | 595 | unsigned char *new_data = NULL; |
duke@435 | 596 | jint new_len = 0; |
duke@435 | 597 | // EVT_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK, |
duke@435 | 598 | // ("JVMTI [%s] class file load hook event sent %s data_ptr = %d, data_len = %d", |
duke@435 | 599 | // JvmtiTrace::safe_get_thread_name(_thread), |
duke@435 | 600 | // _h_name.is_null() ? "NULL" : _h_name->as_utf8(), |
duke@435 | 601 | // _curr_data, _curr_len )); |
duke@435 | 602 | JvmtiClassFileLoadEventMark jem(_thread, _h_name, _class_loader, |
duke@435 | 603 | _h_protection_domain, |
duke@435 | 604 | _h_class_being_redefined); |
duke@435 | 605 | JvmtiJavaThreadEventTransition jet(_thread); |
duke@435 | 606 | JNIEnv* jni_env = (JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL)? |
duke@435 | 607 | NULL : jem.jni_env(); |
duke@435 | 608 | jvmtiEventClassFileLoadHook callback = env->callbacks()->ClassFileLoadHook; |
duke@435 | 609 | if (callback != NULL) { |
duke@435 | 610 | (*callback)(env->jvmti_external(), jni_env, |
duke@435 | 611 | jem.class_being_redefined(), |
duke@435 | 612 | jem.jloader(), jem.class_name(), |
duke@435 | 613 | jem.protection_domain(), |
duke@435 | 614 | _curr_len, _curr_data, |
duke@435 | 615 | &new_len, &new_data); |
duke@435 | 616 | } |
duke@435 | 617 | if (new_data != NULL) { |
duke@435 | 618 | // this agent has modified class data. |
duke@435 | 619 | if (caching_needed && *_cached_data_ptr == NULL) { |
duke@435 | 620 | // data has been changed by the new retransformable agent |
duke@435 | 621 | // and it hasn't already been cached, cache it |
duke@435 | 622 | *_cached_data_ptr = (unsigned char *)os::malloc(_curr_len); |
duke@435 | 623 | memcpy(*_cached_data_ptr, _curr_data, _curr_len); |
duke@435 | 624 | *_cached_length_ptr = _curr_len; |
duke@435 | 625 | } |
duke@435 | 626 | |
duke@435 | 627 | if (_curr_data != *_data_ptr) { |
duke@435 | 628 | // curr_data is previous agent modified class data. |
duke@435 | 629 | // And this has been changed by the new agent so |
duke@435 | 630 | // we can delete it now. |
duke@435 | 631 | _curr_env->Deallocate(_curr_data); |
duke@435 | 632 | } |
duke@435 | 633 | |
duke@435 | 634 | // Class file data has changed by the current agent. |
duke@435 | 635 | _curr_data = new_data; |
duke@435 | 636 | _curr_len = new_len; |
duke@435 | 637 | // Save the current agent env we need this to deallocate the |
duke@435 | 638 | // memory allocated by this agent. |
duke@435 | 639 | _curr_env = env; |
duke@435 | 640 | } |
duke@435 | 641 | } |
duke@435 | 642 | |
duke@435 | 643 | void copy_modified_data() { |
duke@435 | 644 | // if one of the agent has modified class file data. |
duke@435 | 645 | // Copy modified class data to new resources array. |
duke@435 | 646 | if (_curr_data != *_data_ptr) { |
duke@435 | 647 | *_data_ptr = NEW_RESOURCE_ARRAY(u1, _curr_len); |
duke@435 | 648 | memcpy(*_data_ptr, _curr_data, _curr_len); |
duke@435 | 649 | *_end_ptr = *_data_ptr + _curr_len; |
duke@435 | 650 | _curr_env->Deallocate(_curr_data); |
duke@435 | 651 | } |
duke@435 | 652 | } |
duke@435 | 653 | }; |
duke@435 | 654 | |
duke@435 | 655 | bool JvmtiExport::_should_post_class_file_load_hook = false; |
duke@435 | 656 | |
duke@435 | 657 | // this entry is for class file load hook on class load, redefine and retransform |
duke@435 | 658 | void JvmtiExport::post_class_file_load_hook(symbolHandle h_name, |
duke@435 | 659 | Handle class_loader, |
duke@435 | 660 | Handle h_protection_domain, |
duke@435 | 661 | unsigned char **data_ptr, |
duke@435 | 662 | unsigned char **end_ptr, |
duke@435 | 663 | unsigned char **cached_data_ptr, |
duke@435 | 664 | jint *cached_length_ptr) { |
duke@435 | 665 | JvmtiClassFileLoadHookPoster poster(h_name, class_loader, |
duke@435 | 666 | h_protection_domain, |
duke@435 | 667 | data_ptr, end_ptr, |
duke@435 | 668 | cached_data_ptr, |
duke@435 | 669 | cached_length_ptr); |
duke@435 | 670 | poster.post(); |
duke@435 | 671 | } |
duke@435 | 672 | |
duke@435 | 673 | void JvmtiExport::report_unsupported(bool on) { |
duke@435 | 674 | // If any JVMTI service is turned on, we need to exit before native code |
duke@435 | 675 | // tries to access nonexistant services. |
duke@435 | 676 | if (on) { |
duke@435 | 677 | vm_exit_during_initialization("Java Kernel does not support JVMTI."); |
duke@435 | 678 | } |
duke@435 | 679 | } |
duke@435 | 680 | |
duke@435 | 681 | |
duke@435 | 682 | #ifndef JVMTI_KERNEL |
duke@435 | 683 | static inline klassOop oop_to_klassOop(oop obj) { |
duke@435 | 684 | klassOop k = obj->klass(); |
duke@435 | 685 | |
duke@435 | 686 | // if the object is a java.lang.Class then return the java mirror |
never@1577 | 687 | if (k == SystemDictionary::Class_klass()) { |
duke@435 | 688 | if (!java_lang_Class::is_primitive(obj)) { |
duke@435 | 689 | k = java_lang_Class::as_klassOop(obj); |
duke@435 | 690 | assert(k != NULL, "class for non-primitive mirror must exist"); |
duke@435 | 691 | } |
duke@435 | 692 | } |
duke@435 | 693 | return k; |
duke@435 | 694 | } |
duke@435 | 695 | |
duke@435 | 696 | class JvmtiVMObjectAllocEventMark : public JvmtiClassEventMark { |
duke@435 | 697 | private: |
duke@435 | 698 | jobject _jobj; |
duke@435 | 699 | jlong _size; |
duke@435 | 700 | public: |
duke@435 | 701 | JvmtiVMObjectAllocEventMark(JavaThread *thread, oop obj) : JvmtiClassEventMark(thread, oop_to_klassOop(obj)) { |
duke@435 | 702 | _jobj = (jobject)to_jobject(obj); |
duke@435 | 703 | _size = obj->size() * wordSize; |
duke@435 | 704 | }; |
duke@435 | 705 | jobject jni_jobject() { return _jobj; } |
duke@435 | 706 | jlong size() { return _size; } |
duke@435 | 707 | }; |
duke@435 | 708 | |
duke@435 | 709 | class JvmtiCompiledMethodLoadEventMark : public JvmtiMethodEventMark { |
duke@435 | 710 | private: |
duke@435 | 711 | jint _code_size; |
duke@435 | 712 | const void *_code_data; |
duke@435 | 713 | jint _map_length; |
duke@435 | 714 | jvmtiAddrLocationMap *_map; |
duke@435 | 715 | const void *_compile_info; |
duke@435 | 716 | public: |
dcubed@1619 | 717 | JvmtiCompiledMethodLoadEventMark(JavaThread *thread, nmethod *nm, void* compile_info_ptr = NULL) |
duke@435 | 718 | : JvmtiMethodEventMark(thread,methodHandle(thread, nm->method())) { |
twisti@2103 | 719 | _code_data = nm->insts_begin(); |
twisti@2103 | 720 | _code_size = nm->insts_size(); |
dcubed@1619 | 721 | _compile_info = compile_info_ptr; // Set void pointer of compiledMethodLoad Event. Default value is NULL. |
duke@435 | 722 | JvmtiCodeBlobEvents::build_jvmti_addr_location_map(nm, &_map, &_map_length); |
duke@435 | 723 | } |
duke@435 | 724 | ~JvmtiCompiledMethodLoadEventMark() { |
duke@435 | 725 | FREE_C_HEAP_ARRAY(jvmtiAddrLocationMap, _map); |
duke@435 | 726 | } |
duke@435 | 727 | |
duke@435 | 728 | jint code_size() { return _code_size; } |
duke@435 | 729 | const void *code_data() { return _code_data; } |
duke@435 | 730 | jint map_length() { return _map_length; } |
duke@435 | 731 | const jvmtiAddrLocationMap* map() { return _map; } |
duke@435 | 732 | const void *compile_info() { return _compile_info; } |
duke@435 | 733 | }; |
duke@435 | 734 | |
duke@435 | 735 | |
duke@435 | 736 | |
duke@435 | 737 | class JvmtiMonitorEventMark : public JvmtiThreadEventMark { |
duke@435 | 738 | private: |
duke@435 | 739 | jobject _jobj; |
duke@435 | 740 | public: |
duke@435 | 741 | JvmtiMonitorEventMark(JavaThread *thread, oop object) |
duke@435 | 742 | : JvmtiThreadEventMark(thread){ |
duke@435 | 743 | _jobj = to_jobject(object); |
duke@435 | 744 | } |
duke@435 | 745 | jobject jni_object() { return _jobj; } |
duke@435 | 746 | }; |
duke@435 | 747 | |
duke@435 | 748 | /////////////////////////////////////////////////////////////// |
duke@435 | 749 | // |
duke@435 | 750 | // pending CompiledMethodUnload support |
duke@435 | 751 | // |
duke@435 | 752 | |
duke@435 | 753 | bool JvmtiExport::_have_pending_compiled_method_unload_events; |
duke@435 | 754 | GrowableArray<jmethodID>* JvmtiExport::_pending_compiled_method_unload_method_ids; |
duke@435 | 755 | GrowableArray<const void *>* JvmtiExport::_pending_compiled_method_unload_code_begins; |
duke@435 | 756 | JavaThread* JvmtiExport::_current_poster; |
duke@435 | 757 | |
never@1932 | 758 | void JvmtiExport::post_compiled_method_unload_internal(JavaThread* self, jmethodID method, const void *code_begin) { |
never@1932 | 759 | EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
never@1932 | 760 | ("JVMTI [%s] method compile unload event triggered", |
never@1932 | 761 | JvmtiTrace::safe_get_thread_name(self))); |
never@1932 | 762 | |
never@1932 | 763 | // post the event for each environment that has this event enabled. |
never@1932 | 764 | JvmtiEnvIterator it; |
never@1932 | 765 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
never@1932 | 766 | if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_UNLOAD)) { |
never@1932 | 767 | |
never@1932 | 768 | EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, |
never@1932 | 769 | ("JVMTI [%s] class compile method unload event sent jmethodID " PTR_FORMAT, |
never@1932 | 770 | JvmtiTrace::safe_get_thread_name(self), method)); |
never@1932 | 771 | |
never@1932 | 772 | ResourceMark rm(self); |
never@1932 | 773 | |
never@1932 | 774 | JvmtiEventMark jem(self); |
never@1932 | 775 | JvmtiJavaThreadEventTransition jet(self); |
never@1932 | 776 | jvmtiEventCompiledMethodUnload callback = env->callbacks()->CompiledMethodUnload; |
never@1932 | 777 | if (callback != NULL) { |
never@1932 | 778 | (*callback)(env->jvmti_external(), method, code_begin); |
never@1932 | 779 | } |
never@1932 | 780 | } |
never@1932 | 781 | } |
never@1932 | 782 | } |
never@1932 | 783 | |
duke@435 | 784 | // post any pending CompiledMethodUnload events |
duke@435 | 785 | |
duke@435 | 786 | void JvmtiExport::post_pending_compiled_method_unload_events() { |
duke@435 | 787 | JavaThread* self = JavaThread::current(); |
duke@435 | 788 | assert(!self->owns_locks(), "can't hold locks"); |
duke@435 | 789 | |
duke@435 | 790 | // Indicates if this is the first activiation of this function. |
duke@435 | 791 | // In theory the profiler's callback could call back into VM and provoke |
duke@435 | 792 | // another CompiledMethodLoad event to be posted from this thread. As the |
duke@435 | 793 | // stack rewinds we need to ensure that the original activation does the |
duke@435 | 794 | // completion and notifies any waiters. |
duke@435 | 795 | bool first_activation = false; |
duke@435 | 796 | |
duke@435 | 797 | // the jmethodID (may not be valid) to be used for a single event |
duke@435 | 798 | jmethodID method; |
duke@435 | 799 | const void *code_begin; |
duke@435 | 800 | |
duke@435 | 801 | // grab the monitor and check if another thread is already posting |
duke@435 | 802 | // events. If there is another thread posting events then we wait |
duke@435 | 803 | // until it completes. (In theory we could check the pending events to |
duke@435 | 804 | // see if any of the addresses overlap with the event that we want to |
duke@435 | 805 | // post but as it will happen so rarely we just block any thread waiting |
duke@435 | 806 | // to post a CompiledMethodLoad or DynamicCodeGenerated event until all |
duke@435 | 807 | // pending CompiledMethodUnload events have been posted). |
duke@435 | 808 | // |
duke@435 | 809 | // If another thread isn't posting we examine the list of pending jmethodIDs. |
duke@435 | 810 | // If the list is empty then we are done. If it's not empty then this thread |
duke@435 | 811 | // (self) becomes the pending event poster and we remove the top (last) |
duke@435 | 812 | // event from the list. Note that this means we remove the newest event first |
duke@435 | 813 | // but as they are all CompiledMethodUnload events the order doesn't matter. |
duke@435 | 814 | // Once we have removed a jmethodID then we exit the monitor. Any other thread |
duke@435 | 815 | // wanting to post a CompiledMethodLoad or DynamicCodeGenerated event will |
duke@435 | 816 | // be forced to wait on the monitor. |
duke@435 | 817 | { |
duke@435 | 818 | MutexLocker mu(JvmtiPendingEvent_lock); |
duke@435 | 819 | if (_current_poster != self) { |
duke@435 | 820 | while (_current_poster != NULL) { |
duke@435 | 821 | JvmtiPendingEvent_lock->wait(); |
duke@435 | 822 | } |
duke@435 | 823 | } |
duke@435 | 824 | if ((_pending_compiled_method_unload_method_ids == NULL) || |
duke@435 | 825 | (_pending_compiled_method_unload_method_ids->length() == 0)) { |
duke@435 | 826 | return; |
duke@435 | 827 | } |
duke@435 | 828 | if (_current_poster == NULL) { |
duke@435 | 829 | _current_poster = self; |
duke@435 | 830 | first_activation = true; |
duke@435 | 831 | } else { |
duke@435 | 832 | // re-entrant |
duke@435 | 833 | guarantee(_current_poster == self, "checking"); |
duke@435 | 834 | } |
duke@435 | 835 | method = _pending_compiled_method_unload_method_ids->pop(); |
duke@435 | 836 | code_begin = _pending_compiled_method_unload_code_begins->pop(); |
duke@435 | 837 | } |
duke@435 | 838 | |
duke@435 | 839 | // This thread is the pending event poster so it first posts the CompiledMethodUnload |
duke@435 | 840 | // event for the jmethodID that has been removed from the list. Once posted it |
duke@435 | 841 | // re-grabs the monitor and checks the list again. If the list is empty then and this |
duke@435 | 842 | // is the first activation of the function then we reset the _have_pending_events |
duke@435 | 843 | // flag, cleanup _current_poster to indicate that no thread is now servicing the |
duke@435 | 844 | // pending events list, and finally notify any thread that might be waiting. |
duke@435 | 845 | for (;;) { |
never@1932 | 846 | post_compiled_method_unload_internal(self, method, code_begin); |
duke@435 | 847 | |
duke@435 | 848 | // event posted, now re-grab monitor and get the next event |
duke@435 | 849 | // If there's no next event then we are done. If this is the first |
duke@435 | 850 | // activiation of this function by this thread notify any waiters |
duke@435 | 851 | // so that they can post. |
duke@435 | 852 | { |
duke@435 | 853 | MutexLocker ml(JvmtiPendingEvent_lock); |
duke@435 | 854 | if (_pending_compiled_method_unload_method_ids->length() == 0) { |
duke@435 | 855 | if (first_activation) { |
duke@435 | 856 | _have_pending_compiled_method_unload_events = false; |
duke@435 | 857 | _current_poster = NULL; |
duke@435 | 858 | JvmtiPendingEvent_lock->notify_all(); |
duke@435 | 859 | } |
duke@435 | 860 | return; |
duke@435 | 861 | } |
duke@435 | 862 | method = _pending_compiled_method_unload_method_ids->pop(); |
duke@435 | 863 | code_begin = _pending_compiled_method_unload_code_begins->pop(); |
duke@435 | 864 | } |
duke@435 | 865 | } |
duke@435 | 866 | } |
duke@435 | 867 | |
duke@435 | 868 | /////////////////////////////////////////////////////////////// |
duke@435 | 869 | // |
duke@435 | 870 | // JvmtiExport |
duke@435 | 871 | // |
duke@435 | 872 | |
duke@435 | 873 | void JvmtiExport::post_raw_breakpoint(JavaThread *thread, methodOop method, address location) { |
duke@435 | 874 | HandleMark hm(thread); |
duke@435 | 875 | methodHandle mh(thread, method); |
duke@435 | 876 | |
duke@435 | 877 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 878 | if (state == NULL) { |
duke@435 | 879 | return; |
duke@435 | 880 | } |
duke@435 | 881 | EVT_TRIG_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Trg Breakpoint triggered", |
duke@435 | 882 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 883 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 884 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 885 | ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_BREAKPOINT); |
duke@435 | 886 | if (!ets->breakpoint_posted() && ets->is_enabled(JVMTI_EVENT_BREAKPOINT)) { |
duke@435 | 887 | ThreadState old_os_state = thread->osthread()->get_state(); |
duke@435 | 888 | thread->osthread()->set_state(BREAKPOINTED); |
duke@435 | 889 | EVT_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Evt Breakpoint sent %s.%s @ %d", |
duke@435 | 890 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 891 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 892 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), |
duke@435 | 893 | location - mh()->code_base() )); |
duke@435 | 894 | |
duke@435 | 895 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 896 | JvmtiLocationEventMark jem(thread, mh, location); |
duke@435 | 897 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 898 | jvmtiEventBreakpoint callback = env->callbacks()->Breakpoint; |
duke@435 | 899 | if (callback != NULL) { |
duke@435 | 900 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 901 | jem.jni_methodID(), jem.location()); |
duke@435 | 902 | } |
duke@435 | 903 | |
duke@435 | 904 | ets->set_breakpoint_posted(); |
duke@435 | 905 | thread->osthread()->set_state(old_os_state); |
duke@435 | 906 | } |
duke@435 | 907 | } |
duke@435 | 908 | } |
duke@435 | 909 | |
duke@435 | 910 | ////////////////////////////////////////////////////////////////////////////// |
duke@435 | 911 | |
duke@435 | 912 | bool JvmtiExport::_can_get_source_debug_extension = false; |
duke@435 | 913 | bool JvmtiExport::_can_maintain_original_method_order = false; |
duke@435 | 914 | bool JvmtiExport::_can_post_interpreter_events = false; |
dcubed@1648 | 915 | bool JvmtiExport::_can_post_on_exceptions = false; |
duke@435 | 916 | bool JvmtiExport::_can_post_breakpoint = false; |
duke@435 | 917 | bool JvmtiExport::_can_post_field_access = false; |
duke@435 | 918 | bool JvmtiExport::_can_post_field_modification = false; |
duke@435 | 919 | bool JvmtiExport::_can_post_method_entry = false; |
duke@435 | 920 | bool JvmtiExport::_can_post_method_exit = false; |
duke@435 | 921 | bool JvmtiExport::_can_pop_frame = false; |
duke@435 | 922 | bool JvmtiExport::_can_force_early_return = false; |
duke@435 | 923 | |
duke@435 | 924 | bool JvmtiExport::_should_post_single_step = false; |
duke@435 | 925 | bool JvmtiExport::_should_post_field_access = false; |
duke@435 | 926 | bool JvmtiExport::_should_post_field_modification = false; |
duke@435 | 927 | bool JvmtiExport::_should_post_class_load = false; |
duke@435 | 928 | bool JvmtiExport::_should_post_class_prepare = false; |
duke@435 | 929 | bool JvmtiExport::_should_post_class_unload = false; |
duke@435 | 930 | bool JvmtiExport::_should_post_thread_life = false; |
duke@435 | 931 | bool JvmtiExport::_should_clean_up_heap_objects = false; |
duke@435 | 932 | bool JvmtiExport::_should_post_native_method_bind = false; |
duke@435 | 933 | bool JvmtiExport::_should_post_dynamic_code_generated = false; |
duke@435 | 934 | bool JvmtiExport::_should_post_data_dump = false; |
duke@435 | 935 | bool JvmtiExport::_should_post_compiled_method_load = false; |
duke@435 | 936 | bool JvmtiExport::_should_post_compiled_method_unload = false; |
duke@435 | 937 | bool JvmtiExport::_should_post_monitor_contended_enter = false; |
duke@435 | 938 | bool JvmtiExport::_should_post_monitor_contended_entered = false; |
duke@435 | 939 | bool JvmtiExport::_should_post_monitor_wait = false; |
duke@435 | 940 | bool JvmtiExport::_should_post_monitor_waited = false; |
duke@435 | 941 | bool JvmtiExport::_should_post_garbage_collection_start = false; |
duke@435 | 942 | bool JvmtiExport::_should_post_garbage_collection_finish = false; |
duke@435 | 943 | bool JvmtiExport::_should_post_object_free = false; |
duke@435 | 944 | bool JvmtiExport::_should_post_resource_exhausted = false; |
duke@435 | 945 | bool JvmtiExport::_should_post_vm_object_alloc = false; |
dcubed@1648 | 946 | bool JvmtiExport::_should_post_on_exceptions = false; |
duke@435 | 947 | |
duke@435 | 948 | //////////////////////////////////////////////////////////////////////////////////////////////// |
duke@435 | 949 | |
duke@435 | 950 | |
duke@435 | 951 | // |
duke@435 | 952 | // JVMTI single step management |
duke@435 | 953 | // |
duke@435 | 954 | void JvmtiExport::at_single_stepping_point(JavaThread *thread, methodOop method, address location) { |
duke@435 | 955 | assert(JvmtiExport::should_post_single_step(), "must be single stepping"); |
duke@435 | 956 | |
duke@435 | 957 | HandleMark hm(thread); |
duke@435 | 958 | methodHandle mh(thread, method); |
duke@435 | 959 | |
duke@435 | 960 | // update information about current location and post a step event |
duke@435 | 961 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 962 | if (state == NULL) { |
duke@435 | 963 | return; |
duke@435 | 964 | } |
duke@435 | 965 | EVT_TRIG_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Trg Single Step triggered", |
duke@435 | 966 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 967 | if (!state->hide_single_stepping()) { |
duke@435 | 968 | if (state->is_pending_step_for_popframe()) { |
duke@435 | 969 | state->process_pending_step_for_popframe(); |
duke@435 | 970 | } |
duke@435 | 971 | if (state->is_pending_step_for_earlyret()) { |
duke@435 | 972 | state->process_pending_step_for_earlyret(); |
duke@435 | 973 | } |
duke@435 | 974 | JvmtiExport::post_single_step(thread, mh(), location); |
duke@435 | 975 | } |
duke@435 | 976 | } |
duke@435 | 977 | |
duke@435 | 978 | |
duke@435 | 979 | void JvmtiExport::expose_single_stepping(JavaThread *thread) { |
duke@435 | 980 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 981 | if (state != NULL) { |
duke@435 | 982 | state->clear_hide_single_stepping(); |
duke@435 | 983 | } |
duke@435 | 984 | } |
duke@435 | 985 | |
duke@435 | 986 | |
duke@435 | 987 | bool JvmtiExport::hide_single_stepping(JavaThread *thread) { |
duke@435 | 988 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 989 | if (state != NULL && state->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { |
duke@435 | 990 | state->set_hide_single_stepping(); |
duke@435 | 991 | return true; |
duke@435 | 992 | } else { |
duke@435 | 993 | return false; |
duke@435 | 994 | } |
duke@435 | 995 | } |
duke@435 | 996 | |
duke@435 | 997 | void JvmtiExport::post_class_load(JavaThread *thread, klassOop klass) { |
duke@435 | 998 | HandleMark hm(thread); |
duke@435 | 999 | KlassHandle kh(thread, klass); |
duke@435 | 1000 | |
duke@435 | 1001 | EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Trg Class Load triggered", |
duke@435 | 1002 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1003 | JvmtiThreadState* state = thread->jvmti_thread_state(); |
duke@435 | 1004 | if (state == NULL) { |
duke@435 | 1005 | return; |
duke@435 | 1006 | } |
duke@435 | 1007 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1008 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1009 | if (ets->is_enabled(JVMTI_EVENT_CLASS_LOAD)) { |
duke@435 | 1010 | EVT_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Evt Class Load sent %s", |
duke@435 | 1011 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1012 | kh()==NULL? "NULL" : Klass::cast(kh())->external_name() )); |
duke@435 | 1013 | |
duke@435 | 1014 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1015 | JvmtiClassEventMark jem(thread, kh()); |
duke@435 | 1016 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1017 | jvmtiEventClassLoad callback = env->callbacks()->ClassLoad; |
duke@435 | 1018 | if (callback != NULL) { |
duke@435 | 1019 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); |
duke@435 | 1020 | } |
duke@435 | 1021 | } |
duke@435 | 1022 | } |
duke@435 | 1023 | } |
duke@435 | 1024 | |
duke@435 | 1025 | |
duke@435 | 1026 | void JvmtiExport::post_class_prepare(JavaThread *thread, klassOop klass) { |
duke@435 | 1027 | HandleMark hm(thread); |
duke@435 | 1028 | KlassHandle kh(thread, klass); |
duke@435 | 1029 | |
duke@435 | 1030 | EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Trg Class Prepare triggered", |
duke@435 | 1031 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1032 | JvmtiThreadState* state = thread->jvmti_thread_state(); |
duke@435 | 1033 | if (state == NULL) { |
duke@435 | 1034 | return; |
duke@435 | 1035 | } |
duke@435 | 1036 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1037 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1038 | if (ets->is_enabled(JVMTI_EVENT_CLASS_PREPARE)) { |
duke@435 | 1039 | EVT_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Evt Class Prepare sent %s", |
duke@435 | 1040 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1041 | kh()==NULL? "NULL" : Klass::cast(kh())->external_name() )); |
duke@435 | 1042 | |
duke@435 | 1043 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1044 | JvmtiClassEventMark jem(thread, kh()); |
duke@435 | 1045 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1046 | jvmtiEventClassPrepare callback = env->callbacks()->ClassPrepare; |
duke@435 | 1047 | if (callback != NULL) { |
duke@435 | 1048 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class()); |
duke@435 | 1049 | } |
duke@435 | 1050 | } |
duke@435 | 1051 | } |
duke@435 | 1052 | } |
duke@435 | 1053 | |
duke@435 | 1054 | void JvmtiExport::post_class_unload(klassOop klass) { |
duke@435 | 1055 | Thread *thread = Thread::current(); |
duke@435 | 1056 | HandleMark hm(thread); |
duke@435 | 1057 | KlassHandle kh(thread, klass); |
duke@435 | 1058 | |
duke@435 | 1059 | EVT_TRIG_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Trg Class Unload triggered" )); |
duke@435 | 1060 | if (JvmtiEventController::is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { |
duke@435 | 1061 | assert(thread->is_VM_thread(), "wrong thread"); |
duke@435 | 1062 | |
duke@435 | 1063 | // get JavaThread for whom we are proxy |
duke@435 | 1064 | JavaThread *real_thread = |
duke@435 | 1065 | (JavaThread *)((VMThread *)thread)->vm_operation()->calling_thread(); |
duke@435 | 1066 | |
duke@435 | 1067 | JvmtiEnvIterator it; |
duke@435 | 1068 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 1069 | if (env->is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) { |
duke@435 | 1070 | EVT_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Evt Class Unload sent %s", |
duke@435 | 1071 | kh()==NULL? "NULL" : Klass::cast(kh())->external_name() )); |
duke@435 | 1072 | |
duke@435 | 1073 | // do everything manually, since this is a proxy - needs special care |
duke@435 | 1074 | JNIEnv* jni_env = real_thread->jni_environment(); |
duke@435 | 1075 | jthread jt = (jthread)JNIHandles::make_local(real_thread, real_thread->threadObj()); |
duke@435 | 1076 | jclass jk = (jclass)JNIHandles::make_local(real_thread, Klass::cast(kh())->java_mirror()); |
duke@435 | 1077 | |
duke@435 | 1078 | // Before we call the JVMTI agent, we have to set the state in the |
duke@435 | 1079 | // thread for which we are proxying. |
duke@435 | 1080 | JavaThreadState prev_state = real_thread->thread_state(); |
duke@435 | 1081 | assert(prev_state == _thread_blocked, "JavaThread should be at safepoint"); |
duke@435 | 1082 | real_thread->set_thread_state(_thread_in_native); |
duke@435 | 1083 | |
duke@435 | 1084 | jvmtiExtensionEvent callback = env->ext_callbacks()->ClassUnload; |
duke@435 | 1085 | if (callback != NULL) { |
duke@435 | 1086 | (*callback)(env->jvmti_external(), jni_env, jt, jk); |
duke@435 | 1087 | } |
duke@435 | 1088 | |
duke@435 | 1089 | assert(real_thread->thread_state() == _thread_in_native, |
duke@435 | 1090 | "JavaThread should be in native"); |
duke@435 | 1091 | real_thread->set_thread_state(prev_state); |
duke@435 | 1092 | |
duke@435 | 1093 | JNIHandles::destroy_local(jk); |
duke@435 | 1094 | JNIHandles::destroy_local(jt); |
duke@435 | 1095 | } |
duke@435 | 1096 | } |
duke@435 | 1097 | } |
duke@435 | 1098 | } |
duke@435 | 1099 | |
duke@435 | 1100 | |
duke@435 | 1101 | void JvmtiExport::post_thread_start(JavaThread *thread) { |
duke@435 | 1102 | assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); |
duke@435 | 1103 | |
duke@435 | 1104 | EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Trg Thread Start event triggered", |
duke@435 | 1105 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1106 | |
duke@435 | 1107 | // do JVMTI thread initialization (if needed) |
duke@435 | 1108 | JvmtiEventController::thread_started(thread); |
duke@435 | 1109 | |
duke@435 | 1110 | // Do not post thread start event for hidden java thread. |
duke@435 | 1111 | if (JvmtiEventController::is_enabled(JVMTI_EVENT_THREAD_START) && |
duke@435 | 1112 | !thread->is_hidden_from_external_view()) { |
duke@435 | 1113 | JvmtiEnvIterator it; |
duke@435 | 1114 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 1115 | if (env->is_enabled(JVMTI_EVENT_THREAD_START)) { |
duke@435 | 1116 | EVT_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Evt Thread Start event sent", |
duke@435 | 1117 | JvmtiTrace::safe_get_thread_name(thread) )); |
duke@435 | 1118 | |
duke@435 | 1119 | JvmtiThreadEventMark jem(thread); |
duke@435 | 1120 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1121 | jvmtiEventThreadStart callback = env->callbacks()->ThreadStart; |
duke@435 | 1122 | if (callback != NULL) { |
duke@435 | 1123 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); |
duke@435 | 1124 | } |
duke@435 | 1125 | } |
duke@435 | 1126 | } |
duke@435 | 1127 | } |
duke@435 | 1128 | } |
duke@435 | 1129 | |
duke@435 | 1130 | |
duke@435 | 1131 | void JvmtiExport::post_thread_end(JavaThread *thread) { |
duke@435 | 1132 | EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Trg Thread End event triggered", |
duke@435 | 1133 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1134 | |
duke@435 | 1135 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 1136 | if (state == NULL) { |
duke@435 | 1137 | return; |
duke@435 | 1138 | } |
duke@435 | 1139 | |
duke@435 | 1140 | // Do not post thread end event for hidden java thread. |
duke@435 | 1141 | if (state->is_enabled(JVMTI_EVENT_THREAD_END) && |
duke@435 | 1142 | !thread->is_hidden_from_external_view()) { |
duke@435 | 1143 | |
duke@435 | 1144 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1145 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1146 | if (ets->is_enabled(JVMTI_EVENT_THREAD_END)) { |
duke@435 | 1147 | EVT_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Evt Thread End event sent", |
duke@435 | 1148 | JvmtiTrace::safe_get_thread_name(thread) )); |
duke@435 | 1149 | |
duke@435 | 1150 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1151 | JvmtiThreadEventMark jem(thread); |
duke@435 | 1152 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1153 | jvmtiEventThreadEnd callback = env->callbacks()->ThreadEnd; |
duke@435 | 1154 | if (callback != NULL) { |
duke@435 | 1155 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread()); |
duke@435 | 1156 | } |
duke@435 | 1157 | } |
duke@435 | 1158 | } |
duke@435 | 1159 | } |
duke@435 | 1160 | } |
duke@435 | 1161 | |
duke@435 | 1162 | void JvmtiExport::post_object_free(JvmtiEnv* env, jlong tag) { |
duke@435 | 1163 | assert(SafepointSynchronize::is_at_safepoint(), "must be executed at safepoint"); |
duke@435 | 1164 | assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE), "checking"); |
duke@435 | 1165 | |
duke@435 | 1166 | EVT_TRIG_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Trg Object Free triggered" )); |
duke@435 | 1167 | EVT_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Evt Object Free sent")); |
duke@435 | 1168 | |
duke@435 | 1169 | jvmtiEventObjectFree callback = env->callbacks()->ObjectFree; |
duke@435 | 1170 | if (callback != NULL) { |
duke@435 | 1171 | (*callback)(env->jvmti_external(), tag); |
duke@435 | 1172 | } |
duke@435 | 1173 | } |
duke@435 | 1174 | |
duke@435 | 1175 | void JvmtiExport::post_resource_exhausted(jint resource_exhausted_flags, const char* description) { |
duke@435 | 1176 | EVT_TRIG_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Trg resource exhausted event triggered" )); |
duke@435 | 1177 | |
duke@435 | 1178 | JvmtiEnvIterator it; |
duke@435 | 1179 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 1180 | if (env->is_enabled(JVMTI_EVENT_RESOURCE_EXHAUSTED)) { |
duke@435 | 1181 | EVT_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Evt resource exhausted event sent" )); |
duke@435 | 1182 | |
duke@435 | 1183 | JavaThread *thread = JavaThread::current(); |
duke@435 | 1184 | JvmtiThreadEventMark jem(thread); |
duke@435 | 1185 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1186 | jvmtiEventResourceExhausted callback = env->callbacks()->ResourceExhausted; |
duke@435 | 1187 | if (callback != NULL) { |
duke@435 | 1188 | (*callback)(env->jvmti_external(), jem.jni_env(), |
duke@435 | 1189 | resource_exhausted_flags, NULL, description); |
duke@435 | 1190 | } |
duke@435 | 1191 | } |
duke@435 | 1192 | } |
duke@435 | 1193 | } |
duke@435 | 1194 | |
duke@435 | 1195 | void JvmtiExport::post_method_entry(JavaThread *thread, methodOop method, frame current_frame) { |
duke@435 | 1196 | HandleMark hm(thread); |
duke@435 | 1197 | methodHandle mh(thread, method); |
duke@435 | 1198 | |
duke@435 | 1199 | EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Trg Method Entry triggered %s.%s", |
duke@435 | 1200 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1201 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1202 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); |
duke@435 | 1203 | |
duke@435 | 1204 | JvmtiThreadState* state = thread->jvmti_thread_state(); |
duke@435 | 1205 | if (state == NULL || !state->is_interp_only_mode()) { |
duke@435 | 1206 | // for any thread that actually wants method entry, interp_only_mode is set |
duke@435 | 1207 | return; |
duke@435 | 1208 | } |
duke@435 | 1209 | |
duke@435 | 1210 | state->incr_cur_stack_depth(); |
duke@435 | 1211 | |
duke@435 | 1212 | if (state->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { |
duke@435 | 1213 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1214 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1215 | if (ets->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) { |
duke@435 | 1216 | EVT_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Evt Method Entry sent %s.%s", |
duke@435 | 1217 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1218 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1219 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); |
duke@435 | 1220 | |
duke@435 | 1221 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1222 | JvmtiMethodEventMark jem(thread, mh); |
duke@435 | 1223 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1224 | jvmtiEventMethodEntry callback = env->callbacks()->MethodEntry; |
duke@435 | 1225 | if (callback != NULL) { |
duke@435 | 1226 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_methodID()); |
duke@435 | 1227 | } |
duke@435 | 1228 | } |
duke@435 | 1229 | } |
duke@435 | 1230 | } |
duke@435 | 1231 | } |
duke@435 | 1232 | |
duke@435 | 1233 | void JvmtiExport::post_method_exit(JavaThread *thread, methodOop method, frame current_frame) { |
duke@435 | 1234 | HandleMark hm(thread); |
duke@435 | 1235 | methodHandle mh(thread, method); |
duke@435 | 1236 | |
duke@435 | 1237 | EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Trg Method Exit triggered %s.%s", |
duke@435 | 1238 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1239 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1240 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); |
duke@435 | 1241 | |
duke@435 | 1242 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 1243 | if (state == NULL || !state->is_interp_only_mode()) { |
duke@435 | 1244 | // for any thread that actually wants method exit, interp_only_mode is set |
duke@435 | 1245 | return; |
duke@435 | 1246 | } |
duke@435 | 1247 | |
duke@435 | 1248 | // return a flag when a method terminates by throwing an exception |
duke@435 | 1249 | // i.e. if an exception is thrown and it's not caught by the current method |
duke@435 | 1250 | bool exception_exit = state->is_exception_detected() && !state->is_exception_caught(); |
duke@435 | 1251 | |
duke@435 | 1252 | |
duke@435 | 1253 | if (state->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { |
duke@435 | 1254 | Handle result; |
duke@435 | 1255 | jvalue value; |
duke@435 | 1256 | value.j = 0L; |
duke@435 | 1257 | |
duke@435 | 1258 | // if the method hasn't been popped because of an exception then we populate |
duke@435 | 1259 | // the return_value parameter for the callback. At this point we only have |
duke@435 | 1260 | // the address of a "raw result" and we just call into the interpreter to |
duke@435 | 1261 | // convert this into a jvalue. |
duke@435 | 1262 | if (!exception_exit) { |
duke@435 | 1263 | oop oop_result; |
duke@435 | 1264 | BasicType type = current_frame.interpreter_frame_result(&oop_result, &value); |
duke@435 | 1265 | if (type == T_OBJECT || type == T_ARRAY) { |
duke@435 | 1266 | result = Handle(thread, oop_result); |
duke@435 | 1267 | } |
duke@435 | 1268 | } |
duke@435 | 1269 | |
duke@435 | 1270 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1271 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1272 | if (ets->is_enabled(JVMTI_EVENT_METHOD_EXIT)) { |
duke@435 | 1273 | EVT_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Evt Method Exit sent %s.%s", |
duke@435 | 1274 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1275 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1276 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); |
duke@435 | 1277 | |
duke@435 | 1278 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1279 | JvmtiMethodEventMark jem(thread, mh); |
duke@435 | 1280 | if (result.not_null()) { |
duke@435 | 1281 | value.l = JNIHandles::make_local(thread, result()); |
duke@435 | 1282 | } |
duke@435 | 1283 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1284 | jvmtiEventMethodExit callback = env->callbacks()->MethodExit; |
duke@435 | 1285 | if (callback != NULL) { |
duke@435 | 1286 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 1287 | jem.jni_methodID(), exception_exit, value); |
duke@435 | 1288 | } |
duke@435 | 1289 | } |
duke@435 | 1290 | } |
duke@435 | 1291 | } |
duke@435 | 1292 | |
duke@435 | 1293 | if (state->is_enabled(JVMTI_EVENT_FRAME_POP)) { |
duke@435 | 1294 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1295 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1296 | int cur_frame_number = state->cur_stack_depth(); |
duke@435 | 1297 | |
duke@435 | 1298 | if (ets->is_frame_pop(cur_frame_number)) { |
duke@435 | 1299 | // we have a NotifyFramePop entry for this frame. |
duke@435 | 1300 | // now check that this env/thread wants this event |
duke@435 | 1301 | if (ets->is_enabled(JVMTI_EVENT_FRAME_POP)) { |
duke@435 | 1302 | EVT_TRACE(JVMTI_EVENT_FRAME_POP, ("JVMTI [%s] Evt Frame Pop sent %s.%s", |
duke@435 | 1303 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1304 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1305 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() )); |
duke@435 | 1306 | |
duke@435 | 1307 | // we also need to issue a frame pop event for this frame |
duke@435 | 1308 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1309 | JvmtiMethodEventMark jem(thread, mh); |
duke@435 | 1310 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1311 | jvmtiEventFramePop callback = env->callbacks()->FramePop; |
duke@435 | 1312 | if (callback != NULL) { |
duke@435 | 1313 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 1314 | jem.jni_methodID(), exception_exit); |
duke@435 | 1315 | } |
duke@435 | 1316 | } |
duke@435 | 1317 | // remove the frame's entry |
duke@435 | 1318 | ets->clear_frame_pop(cur_frame_number); |
duke@435 | 1319 | } |
duke@435 | 1320 | } |
duke@435 | 1321 | } |
duke@435 | 1322 | |
duke@435 | 1323 | state->decr_cur_stack_depth(); |
duke@435 | 1324 | } |
duke@435 | 1325 | |
duke@435 | 1326 | |
duke@435 | 1327 | // Todo: inline this for optimization |
duke@435 | 1328 | void JvmtiExport::post_single_step(JavaThread *thread, methodOop method, address location) { |
duke@435 | 1329 | HandleMark hm(thread); |
duke@435 | 1330 | methodHandle mh(thread, method); |
duke@435 | 1331 | |
duke@435 | 1332 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 1333 | if (state == NULL) { |
duke@435 | 1334 | return; |
duke@435 | 1335 | } |
duke@435 | 1336 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1337 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1338 | ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_SINGLE_STEP); |
duke@435 | 1339 | if (!ets->single_stepping_posted() && ets->is_enabled(JVMTI_EVENT_SINGLE_STEP)) { |
duke@435 | 1340 | EVT_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Evt Single Step sent %s.%s @ %d", |
duke@435 | 1341 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1342 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1343 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), |
duke@435 | 1344 | location - mh()->code_base() )); |
duke@435 | 1345 | |
duke@435 | 1346 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1347 | JvmtiLocationEventMark jem(thread, mh, location); |
duke@435 | 1348 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1349 | jvmtiEventSingleStep callback = env->callbacks()->SingleStep; |
duke@435 | 1350 | if (callback != NULL) { |
duke@435 | 1351 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 1352 | jem.jni_methodID(), jem.location()); |
duke@435 | 1353 | } |
duke@435 | 1354 | |
duke@435 | 1355 | ets->set_single_stepping_posted(); |
duke@435 | 1356 | } |
duke@435 | 1357 | } |
duke@435 | 1358 | } |
duke@435 | 1359 | |
duke@435 | 1360 | |
duke@435 | 1361 | void JvmtiExport::post_exception_throw(JavaThread *thread, methodOop method, address location, oop exception) { |
duke@435 | 1362 | HandleMark hm(thread); |
duke@435 | 1363 | methodHandle mh(thread, method); |
duke@435 | 1364 | Handle exception_handle(thread, exception); |
duke@435 | 1365 | |
duke@435 | 1366 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 1367 | if (state == NULL) { |
duke@435 | 1368 | return; |
duke@435 | 1369 | } |
duke@435 | 1370 | |
duke@435 | 1371 | EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION, ("JVMTI [%s] Trg Exception thrown triggered", |
duke@435 | 1372 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1373 | if (!state->is_exception_detected()) { |
duke@435 | 1374 | state->set_exception_detected(); |
duke@435 | 1375 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1376 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1377 | if (ets->is_enabled(JVMTI_EVENT_EXCEPTION) && (exception != NULL)) { |
duke@435 | 1378 | |
duke@435 | 1379 | EVT_TRACE(JVMTI_EVENT_EXCEPTION, |
duke@435 | 1380 | ("JVMTI [%s] Evt Exception thrown sent %s.%s @ %d", |
duke@435 | 1381 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1382 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1383 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), |
duke@435 | 1384 | location - mh()->code_base() )); |
duke@435 | 1385 | |
duke@435 | 1386 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1387 | JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); |
duke@435 | 1388 | |
duke@435 | 1389 | // It's okay to clear these exceptions here because we duplicate |
duke@435 | 1390 | // this lookup in InterpreterRuntime::exception_handler_for_exception. |
duke@435 | 1391 | EXCEPTION_MARK; |
duke@435 | 1392 | |
duke@435 | 1393 | bool should_repeat; |
duke@435 | 1394 | vframeStream st(thread); |
duke@435 | 1395 | assert(!st.at_end(), "cannot be at end"); |
duke@435 | 1396 | methodOop current_method = NULL; |
duke@435 | 1397 | int current_bci = -1; |
duke@435 | 1398 | do { |
duke@435 | 1399 | current_method = st.method(); |
duke@435 | 1400 | current_bci = st.bci(); |
duke@435 | 1401 | do { |
duke@435 | 1402 | should_repeat = false; |
duke@435 | 1403 | KlassHandle eh_klass(thread, exception_handle()->klass()); |
duke@435 | 1404 | current_bci = current_method->fast_exception_handler_bci_for( |
duke@435 | 1405 | eh_klass, current_bci, THREAD); |
duke@435 | 1406 | if (HAS_PENDING_EXCEPTION) { |
duke@435 | 1407 | exception_handle = KlassHandle(thread, PENDING_EXCEPTION); |
duke@435 | 1408 | CLEAR_PENDING_EXCEPTION; |
duke@435 | 1409 | should_repeat = true; |
duke@435 | 1410 | } |
duke@435 | 1411 | } while (should_repeat && (current_bci != -1)); |
duke@435 | 1412 | st.next(); |
duke@435 | 1413 | } while ((current_bci < 0) && (!st.at_end())); |
duke@435 | 1414 | |
duke@435 | 1415 | jmethodID catch_jmethodID; |
duke@435 | 1416 | if (current_bci < 0) { |
duke@435 | 1417 | catch_jmethodID = 0; |
duke@435 | 1418 | current_bci = 0; |
duke@435 | 1419 | } else { |
duke@435 | 1420 | catch_jmethodID = jem.to_jmethodID( |
duke@435 | 1421 | methodHandle(thread, current_method)); |
duke@435 | 1422 | } |
duke@435 | 1423 | |
duke@435 | 1424 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1425 | jvmtiEventException callback = env->callbacks()->Exception; |
duke@435 | 1426 | if (callback != NULL) { |
duke@435 | 1427 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 1428 | jem.jni_methodID(), jem.location(), |
duke@435 | 1429 | jem.exception(), |
duke@435 | 1430 | catch_jmethodID, current_bci); |
duke@435 | 1431 | } |
duke@435 | 1432 | } |
duke@435 | 1433 | } |
duke@435 | 1434 | } |
duke@435 | 1435 | |
duke@435 | 1436 | // frames may get popped because of this throw, be safe - invalidate cached depth |
duke@435 | 1437 | state->invalidate_cur_stack_depth(); |
duke@435 | 1438 | } |
duke@435 | 1439 | |
duke@435 | 1440 | |
duke@435 | 1441 | void JvmtiExport::notice_unwind_due_to_exception(JavaThread *thread, methodOop method, address location, oop exception, bool in_handler_frame) { |
duke@435 | 1442 | HandleMark hm(thread); |
duke@435 | 1443 | methodHandle mh(thread, method); |
duke@435 | 1444 | Handle exception_handle(thread, exception); |
duke@435 | 1445 | |
duke@435 | 1446 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 1447 | if (state == NULL) { |
duke@435 | 1448 | return; |
duke@435 | 1449 | } |
duke@435 | 1450 | EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, |
duke@435 | 1451 | ("JVMTI [%s] Trg unwind_due_to_exception triggered %s.%s @ %s%d - %s", |
duke@435 | 1452 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1453 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1454 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), |
duke@435 | 1455 | location==0? "no location:" : "", |
duke@435 | 1456 | location==0? 0 : location - mh()->code_base(), |
duke@435 | 1457 | in_handler_frame? "in handler frame" : "not handler frame" )); |
duke@435 | 1458 | |
duke@435 | 1459 | if (state->is_exception_detected()) { |
duke@435 | 1460 | |
duke@435 | 1461 | state->invalidate_cur_stack_depth(); |
duke@435 | 1462 | if (!in_handler_frame) { |
duke@435 | 1463 | // Not in exception handler. |
duke@435 | 1464 | if(state->is_interp_only_mode()) { |
duke@435 | 1465 | // method exit and frame pop events are posted only in interp mode. |
duke@435 | 1466 | // When these events are enabled code should be in running in interp mode. |
duke@435 | 1467 | JvmtiExport::post_method_exit(thread, method, thread->last_frame()); |
duke@435 | 1468 | // The cached cur_stack_depth might have changed from the |
duke@435 | 1469 | // operations of frame pop or method exit. We are not 100% sure |
duke@435 | 1470 | // the cached cur_stack_depth is still valid depth so invalidate |
duke@435 | 1471 | // it. |
duke@435 | 1472 | state->invalidate_cur_stack_depth(); |
duke@435 | 1473 | } |
duke@435 | 1474 | } else { |
duke@435 | 1475 | // In exception handler frame. Report exception catch. |
duke@435 | 1476 | assert(location != NULL, "must be a known location"); |
duke@435 | 1477 | // Update cur_stack_depth - the frames above the current frame |
duke@435 | 1478 | // have been unwound due to this exception: |
duke@435 | 1479 | assert(!state->is_exception_caught(), "exception must not be caught yet."); |
duke@435 | 1480 | state->set_exception_caught(); |
duke@435 | 1481 | |
duke@435 | 1482 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1483 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1484 | if (ets->is_enabled(JVMTI_EVENT_EXCEPTION_CATCH) && (exception_handle() != NULL)) { |
duke@435 | 1485 | EVT_TRACE(JVMTI_EVENT_EXCEPTION_CATCH, |
duke@435 | 1486 | ("JVMTI [%s] Evt ExceptionCatch sent %s.%s @ %d", |
duke@435 | 1487 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1488 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1489 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), |
duke@435 | 1490 | location - mh()->code_base() )); |
duke@435 | 1491 | |
duke@435 | 1492 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1493 | JvmtiExceptionEventMark jem(thread, mh, location, exception_handle); |
duke@435 | 1494 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1495 | jvmtiEventExceptionCatch callback = env->callbacks()->ExceptionCatch; |
duke@435 | 1496 | if (callback != NULL) { |
duke@435 | 1497 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 1498 | jem.jni_methodID(), jem.location(), |
duke@435 | 1499 | jem.exception()); |
duke@435 | 1500 | } |
duke@435 | 1501 | } |
duke@435 | 1502 | } |
duke@435 | 1503 | } |
duke@435 | 1504 | } |
duke@435 | 1505 | } |
duke@435 | 1506 | |
duke@435 | 1507 | oop JvmtiExport::jni_GetField_probe(JavaThread *thread, jobject jobj, oop obj, |
duke@435 | 1508 | klassOop klass, jfieldID fieldID, bool is_static) { |
duke@435 | 1509 | if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
duke@435 | 1510 | // At least one field access watch is set so we have more work |
duke@435 | 1511 | // to do. This wrapper is used by entry points that allow us |
duke@435 | 1512 | // to create handles in post_field_access_by_jni(). |
duke@435 | 1513 | post_field_access_by_jni(thread, obj, klass, fieldID, is_static); |
duke@435 | 1514 | // event posting can block so refetch oop if we were passed a jobj |
duke@435 | 1515 | if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); |
duke@435 | 1516 | } |
duke@435 | 1517 | return obj; |
duke@435 | 1518 | } |
duke@435 | 1519 | |
duke@435 | 1520 | oop JvmtiExport::jni_GetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, |
duke@435 | 1521 | klassOop klass, jfieldID fieldID, bool is_static) { |
duke@435 | 1522 | if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) { |
duke@435 | 1523 | // At least one field access watch is set so we have more work |
duke@435 | 1524 | // to do. This wrapper is used by "quick" entry points that don't |
duke@435 | 1525 | // allow us to create handles in post_field_access_by_jni(). We |
duke@435 | 1526 | // override that with a ResetNoHandleMark. |
duke@435 | 1527 | ResetNoHandleMark rnhm; |
duke@435 | 1528 | post_field_access_by_jni(thread, obj, klass, fieldID, is_static); |
duke@435 | 1529 | // event posting can block so refetch oop if we were passed a jobj |
duke@435 | 1530 | if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); |
duke@435 | 1531 | } |
duke@435 | 1532 | return obj; |
duke@435 | 1533 | } |
duke@435 | 1534 | |
duke@435 | 1535 | void JvmtiExport::post_field_access_by_jni(JavaThread *thread, oop obj, |
duke@435 | 1536 | klassOop klass, jfieldID fieldID, bool is_static) { |
duke@435 | 1537 | // We must be called with a Java context in order to provide reasonable |
duke@435 | 1538 | // values for the klazz, method, and location fields. The callers of this |
duke@435 | 1539 | // function don't make the call unless there is a Java context. |
duke@435 | 1540 | assert(thread->has_last_Java_frame(), "must be called with a Java context"); |
duke@435 | 1541 | |
duke@435 | 1542 | ResourceMark rm; |
duke@435 | 1543 | fieldDescriptor fd; |
duke@435 | 1544 | // if get_field_descriptor finds fieldID to be invalid, then we just bail |
duke@435 | 1545 | bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); |
duke@435 | 1546 | assert(valid_fieldID == true,"post_field_access_by_jni called with invalid fieldID"); |
duke@435 | 1547 | if (!valid_fieldID) return; |
duke@435 | 1548 | // field accesses are not watched so bail |
duke@435 | 1549 | if (!fd.is_field_access_watched()) return; |
duke@435 | 1550 | |
duke@435 | 1551 | HandleMark hm(thread); |
duke@435 | 1552 | KlassHandle h_klass(thread, klass); |
duke@435 | 1553 | Handle h_obj; |
duke@435 | 1554 | if (!is_static) { |
duke@435 | 1555 | // non-static field accessors have an object, but we need a handle |
duke@435 | 1556 | assert(obj != NULL, "non-static needs an object"); |
duke@435 | 1557 | h_obj = Handle(thread, obj); |
duke@435 | 1558 | } |
duke@435 | 1559 | post_field_access(thread, |
duke@435 | 1560 | thread->last_frame().interpreter_frame_method(), |
duke@435 | 1561 | thread->last_frame().interpreter_frame_bcp(), |
duke@435 | 1562 | h_klass, h_obj, fieldID); |
duke@435 | 1563 | } |
duke@435 | 1564 | |
duke@435 | 1565 | void JvmtiExport::post_field_access(JavaThread *thread, methodOop method, |
duke@435 | 1566 | address location, KlassHandle field_klass, Handle object, jfieldID field) { |
duke@435 | 1567 | |
duke@435 | 1568 | HandleMark hm(thread); |
duke@435 | 1569 | methodHandle mh(thread, method); |
duke@435 | 1570 | |
duke@435 | 1571 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 1572 | if (state == NULL) { |
duke@435 | 1573 | return; |
duke@435 | 1574 | } |
duke@435 | 1575 | EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Trg Field Access event triggered", |
duke@435 | 1576 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1577 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1578 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1579 | if (ets->is_enabled(JVMTI_EVENT_FIELD_ACCESS)) { |
duke@435 | 1580 | EVT_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Evt Field Access event sent %s.%s @ %d", |
duke@435 | 1581 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1582 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1583 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), |
duke@435 | 1584 | location - mh()->code_base() )); |
duke@435 | 1585 | |
duke@435 | 1586 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1587 | JvmtiLocationEventMark jem(thread, mh, location); |
duke@435 | 1588 | jclass field_jclass = jem.to_jclass(field_klass()); |
duke@435 | 1589 | jobject field_jobject = jem.to_jobject(object()); |
duke@435 | 1590 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1591 | jvmtiEventFieldAccess callback = env->callbacks()->FieldAccess; |
duke@435 | 1592 | if (callback != NULL) { |
duke@435 | 1593 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 1594 | jem.jni_methodID(), jem.location(), |
duke@435 | 1595 | field_jclass, field_jobject, field); |
duke@435 | 1596 | } |
duke@435 | 1597 | } |
duke@435 | 1598 | } |
duke@435 | 1599 | } |
duke@435 | 1600 | |
duke@435 | 1601 | oop JvmtiExport::jni_SetField_probe(JavaThread *thread, jobject jobj, oop obj, |
duke@435 | 1602 | klassOop klass, jfieldID fieldID, bool is_static, |
duke@435 | 1603 | char sig_type, jvalue *value) { |
duke@435 | 1604 | if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { |
duke@435 | 1605 | // At least one field modification watch is set so we have more work |
duke@435 | 1606 | // to do. This wrapper is used by entry points that allow us |
duke@435 | 1607 | // to create handles in post_field_modification_by_jni(). |
duke@435 | 1608 | post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); |
duke@435 | 1609 | // event posting can block so refetch oop if we were passed a jobj |
duke@435 | 1610 | if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); |
duke@435 | 1611 | } |
duke@435 | 1612 | return obj; |
duke@435 | 1613 | } |
duke@435 | 1614 | |
duke@435 | 1615 | oop JvmtiExport::jni_SetField_probe_nh(JavaThread *thread, jobject jobj, oop obj, |
duke@435 | 1616 | klassOop klass, jfieldID fieldID, bool is_static, |
duke@435 | 1617 | char sig_type, jvalue *value) { |
duke@435 | 1618 | if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) { |
duke@435 | 1619 | // At least one field modification watch is set so we have more work |
duke@435 | 1620 | // to do. This wrapper is used by "quick" entry points that don't |
duke@435 | 1621 | // allow us to create handles in post_field_modification_by_jni(). We |
duke@435 | 1622 | // override that with a ResetNoHandleMark. |
duke@435 | 1623 | ResetNoHandleMark rnhm; |
duke@435 | 1624 | post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value); |
duke@435 | 1625 | // event posting can block so refetch oop if we were passed a jobj |
duke@435 | 1626 | if (jobj != NULL) return JNIHandles::resolve_non_null(jobj); |
duke@435 | 1627 | } |
duke@435 | 1628 | return obj; |
duke@435 | 1629 | } |
duke@435 | 1630 | |
duke@435 | 1631 | void JvmtiExport::post_field_modification_by_jni(JavaThread *thread, oop obj, |
duke@435 | 1632 | klassOop klass, jfieldID fieldID, bool is_static, |
duke@435 | 1633 | char sig_type, jvalue *value) { |
duke@435 | 1634 | // We must be called with a Java context in order to provide reasonable |
duke@435 | 1635 | // values for the klazz, method, and location fields. The callers of this |
duke@435 | 1636 | // function don't make the call unless there is a Java context. |
duke@435 | 1637 | assert(thread->has_last_Java_frame(), "must be called with Java context"); |
duke@435 | 1638 | |
duke@435 | 1639 | ResourceMark rm; |
duke@435 | 1640 | fieldDescriptor fd; |
duke@435 | 1641 | // if get_field_descriptor finds fieldID to be invalid, then we just bail |
duke@435 | 1642 | bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd); |
duke@435 | 1643 | assert(valid_fieldID == true,"post_field_modification_by_jni called with invalid fieldID"); |
duke@435 | 1644 | if (!valid_fieldID) return; |
duke@435 | 1645 | // field modifications are not watched so bail |
duke@435 | 1646 | if (!fd.is_field_modification_watched()) return; |
duke@435 | 1647 | |
duke@435 | 1648 | HandleMark hm(thread); |
duke@435 | 1649 | |
duke@435 | 1650 | Handle h_obj; |
duke@435 | 1651 | if (!is_static) { |
duke@435 | 1652 | // non-static field accessors have an object, but we need a handle |
duke@435 | 1653 | assert(obj != NULL, "non-static needs an object"); |
duke@435 | 1654 | h_obj = Handle(thread, obj); |
duke@435 | 1655 | } |
duke@435 | 1656 | KlassHandle h_klass(thread, klass); |
duke@435 | 1657 | post_field_modification(thread, |
duke@435 | 1658 | thread->last_frame().interpreter_frame_method(), |
duke@435 | 1659 | thread->last_frame().interpreter_frame_bcp(), |
duke@435 | 1660 | h_klass, h_obj, fieldID, sig_type, value); |
duke@435 | 1661 | } |
duke@435 | 1662 | |
duke@435 | 1663 | void JvmtiExport::post_raw_field_modification(JavaThread *thread, methodOop method, |
duke@435 | 1664 | address location, KlassHandle field_klass, Handle object, jfieldID field, |
duke@435 | 1665 | char sig_type, jvalue *value) { |
duke@435 | 1666 | |
duke@435 | 1667 | if (sig_type == 'I' || sig_type == 'Z' || sig_type == 'C' || sig_type == 'S') { |
duke@435 | 1668 | // 'I' instructions are used for byte, char, short and int. |
duke@435 | 1669 | // determine which it really is, and convert |
duke@435 | 1670 | fieldDescriptor fd; |
duke@435 | 1671 | bool found = JvmtiEnv::get_field_descriptor(field_klass(), field, &fd); |
duke@435 | 1672 | // should be found (if not, leave as is) |
duke@435 | 1673 | if (found) { |
duke@435 | 1674 | jint ival = value->i; |
duke@435 | 1675 | // convert value from int to appropriate type |
duke@435 | 1676 | switch (fd.field_type()) { |
duke@435 | 1677 | case T_BOOLEAN: |
duke@435 | 1678 | sig_type = 'Z'; |
duke@435 | 1679 | value->i = 0; // clear it |
duke@435 | 1680 | value->z = (jboolean)ival; |
duke@435 | 1681 | break; |
duke@435 | 1682 | case T_BYTE: |
duke@435 | 1683 | sig_type = 'B'; |
duke@435 | 1684 | value->i = 0; // clear it |
duke@435 | 1685 | value->b = (jbyte)ival; |
duke@435 | 1686 | break; |
duke@435 | 1687 | case T_CHAR: |
duke@435 | 1688 | sig_type = 'C'; |
duke@435 | 1689 | value->i = 0; // clear it |
duke@435 | 1690 | value->c = (jchar)ival; |
duke@435 | 1691 | break; |
duke@435 | 1692 | case T_SHORT: |
duke@435 | 1693 | sig_type = 'S'; |
duke@435 | 1694 | value->i = 0; // clear it |
duke@435 | 1695 | value->s = (jshort)ival; |
duke@435 | 1696 | break; |
duke@435 | 1697 | case T_INT: |
duke@435 | 1698 | // nothing to do |
duke@435 | 1699 | break; |
duke@435 | 1700 | default: |
duke@435 | 1701 | // this is an integer instruction, should be one of above |
duke@435 | 1702 | ShouldNotReachHere(); |
duke@435 | 1703 | break; |
duke@435 | 1704 | } |
duke@435 | 1705 | } |
duke@435 | 1706 | } |
duke@435 | 1707 | |
duke@435 | 1708 | // convert oop to JNI handle. |
duke@435 | 1709 | if (sig_type == 'L' || sig_type == '[') { |
duke@435 | 1710 | value->l = (jobject)JNIHandles::make_local(thread, (oop)value->l); |
duke@435 | 1711 | } |
duke@435 | 1712 | |
duke@435 | 1713 | post_field_modification(thread, method, location, field_klass, object, field, sig_type, value); |
duke@435 | 1714 | |
duke@435 | 1715 | // Destroy the JNI handle allocated above. |
duke@435 | 1716 | if (sig_type == 'L') { |
duke@435 | 1717 | JNIHandles::destroy_local(value->l); |
duke@435 | 1718 | } |
duke@435 | 1719 | } |
duke@435 | 1720 | |
duke@435 | 1721 | void JvmtiExport::post_field_modification(JavaThread *thread, methodOop method, |
duke@435 | 1722 | address location, KlassHandle field_klass, Handle object, jfieldID field, |
duke@435 | 1723 | char sig_type, jvalue *value_ptr) { |
duke@435 | 1724 | |
duke@435 | 1725 | HandleMark hm(thread); |
duke@435 | 1726 | methodHandle mh(thread, method); |
duke@435 | 1727 | |
duke@435 | 1728 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 1729 | if (state == NULL) { |
duke@435 | 1730 | return; |
duke@435 | 1731 | } |
duke@435 | 1732 | EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, |
duke@435 | 1733 | ("JVMTI [%s] Trg Field Modification event triggered", |
duke@435 | 1734 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1735 | |
duke@435 | 1736 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 1737 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 1738 | if (ets->is_enabled(JVMTI_EVENT_FIELD_MODIFICATION)) { |
duke@435 | 1739 | EVT_TRACE(JVMTI_EVENT_FIELD_MODIFICATION, |
duke@435 | 1740 | ("JVMTI [%s] Evt Field Modification event sent %s.%s @ %d", |
duke@435 | 1741 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1742 | (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(), |
duke@435 | 1743 | (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(), |
duke@435 | 1744 | location - mh()->code_base() )); |
duke@435 | 1745 | |
duke@435 | 1746 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 1747 | JvmtiLocationEventMark jem(thread, mh, location); |
duke@435 | 1748 | jclass field_jclass = jem.to_jclass(field_klass()); |
duke@435 | 1749 | jobject field_jobject = jem.to_jobject(object()); |
duke@435 | 1750 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1751 | jvmtiEventFieldModification callback = env->callbacks()->FieldModification; |
duke@435 | 1752 | if (callback != NULL) { |
duke@435 | 1753 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 1754 | jem.jni_methodID(), jem.location(), |
duke@435 | 1755 | field_jclass, field_jobject, field, sig_type, *value_ptr); |
duke@435 | 1756 | } |
duke@435 | 1757 | } |
duke@435 | 1758 | } |
duke@435 | 1759 | } |
duke@435 | 1760 | |
duke@435 | 1761 | void JvmtiExport::post_native_method_bind(methodOop method, address* function_ptr) { |
duke@435 | 1762 | JavaThread* thread = JavaThread::current(); |
duke@435 | 1763 | assert(thread->thread_state() == _thread_in_vm, "must be in vm state"); |
duke@435 | 1764 | |
duke@435 | 1765 | HandleMark hm(thread); |
duke@435 | 1766 | methodHandle mh(thread, method); |
duke@435 | 1767 | |
duke@435 | 1768 | EVT_TRIG_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Trg Native Method Bind event triggered", |
duke@435 | 1769 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1770 | |
duke@435 | 1771 | if (JvmtiEventController::is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { |
duke@435 | 1772 | JvmtiEnvIterator it; |
duke@435 | 1773 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 1774 | if (env->is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) { |
duke@435 | 1775 | EVT_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Evt Native Method Bind event sent", |
duke@435 | 1776 | JvmtiTrace::safe_get_thread_name(thread) )); |
duke@435 | 1777 | |
duke@435 | 1778 | JvmtiMethodEventMark jem(thread, mh); |
duke@435 | 1779 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1780 | JNIEnv* jni_env = JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL? NULL : jem.jni_env(); |
duke@435 | 1781 | jvmtiEventNativeMethodBind callback = env->callbacks()->NativeMethodBind; |
duke@435 | 1782 | if (callback != NULL) { |
duke@435 | 1783 | (*callback)(env->jvmti_external(), jni_env, jem.jni_thread(), |
duke@435 | 1784 | jem.jni_methodID(), (void*)(*function_ptr), (void**)function_ptr); |
duke@435 | 1785 | } |
duke@435 | 1786 | } |
duke@435 | 1787 | } |
duke@435 | 1788 | } |
duke@435 | 1789 | } |
duke@435 | 1790 | |
dcubed@1619 | 1791 | // Returns a record containing inlining information for the given nmethod |
dcubed@1619 | 1792 | jvmtiCompiledMethodLoadInlineRecord* create_inline_record(nmethod* nm) { |
dcubed@1619 | 1793 | jint numstackframes = 0; |
dcubed@1619 | 1794 | jvmtiCompiledMethodLoadInlineRecord* record = (jvmtiCompiledMethodLoadInlineRecord*)NEW_RESOURCE_OBJ(jvmtiCompiledMethodLoadInlineRecord); |
dcubed@1619 | 1795 | record->header.kind = JVMTI_CMLR_INLINE_INFO; |
dcubed@1619 | 1796 | record->header.next = NULL; |
dcubed@1619 | 1797 | record->header.majorinfoversion = JVMTI_CMLR_MAJOR_VERSION_1; |
dcubed@1619 | 1798 | record->header.minorinfoversion = JVMTI_CMLR_MINOR_VERSION_0; |
dcubed@1619 | 1799 | record->numpcs = 0; |
dcubed@1619 | 1800 | for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
dcubed@1619 | 1801 | if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
dcubed@1619 | 1802 | record->numpcs++; |
dcubed@1619 | 1803 | } |
dcubed@1619 | 1804 | record->pcinfo = (PCStackInfo*)(NEW_RESOURCE_ARRAY(PCStackInfo, record->numpcs)); |
dcubed@1619 | 1805 | int scope = 0; |
dcubed@1619 | 1806 | for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) { |
dcubed@1619 | 1807 | if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue; |
dcubed@1619 | 1808 | void* pc_address = (void*)p->real_pc(nm); |
dcubed@1619 | 1809 | assert(pc_address != NULL, "pc_address must be non-null"); |
dcubed@1619 | 1810 | record->pcinfo[scope].pc = pc_address; |
dcubed@1619 | 1811 | numstackframes=0; |
dcubed@1619 | 1812 | for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
dcubed@1619 | 1813 | numstackframes++; |
dcubed@1619 | 1814 | } |
dcubed@1619 | 1815 | assert(numstackframes != 0, "numstackframes must be nonzero."); |
dcubed@1619 | 1816 | record->pcinfo[scope].methods = (jmethodID *)NEW_RESOURCE_ARRAY(jmethodID, numstackframes); |
dcubed@1619 | 1817 | record->pcinfo[scope].bcis = (jint *)NEW_RESOURCE_ARRAY(jint, numstackframes); |
dcubed@1619 | 1818 | record->pcinfo[scope].numstackframes = numstackframes; |
dcubed@1619 | 1819 | int stackframe = 0; |
dcubed@1619 | 1820 | for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) { |
dcubed@1619 | 1821 | // 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() |
dcubed@1619 | 1822 | assert(!sd->method().is_null(), "sd->method() cannot be null."); |
dcubed@1619 | 1823 | record->pcinfo[scope].methods[stackframe] = sd->method()->jmethod_id(); |
dcubed@1619 | 1824 | record->pcinfo[scope].bcis[stackframe] = sd->bci(); |
dcubed@1619 | 1825 | stackframe++; |
dcubed@1619 | 1826 | } |
dcubed@1619 | 1827 | scope++; |
dcubed@1619 | 1828 | } |
dcubed@1619 | 1829 | return record; |
dcubed@1619 | 1830 | } |
duke@435 | 1831 | |
duke@435 | 1832 | void JvmtiExport::post_compiled_method_load(nmethod *nm) { |
duke@435 | 1833 | // If there are pending CompiledMethodUnload events then these are |
duke@435 | 1834 | // posted before this CompiledMethodLoad event. We "lock" the nmethod and |
duke@435 | 1835 | // maintain a handle to the methodOop to ensure that the nmethod isn't |
duke@435 | 1836 | // flushed or unloaded while posting the events. |
duke@435 | 1837 | JavaThread* thread = JavaThread::current(); |
duke@435 | 1838 | if (have_pending_compiled_method_unload_events()) { |
duke@435 | 1839 | methodHandle mh(thread, nm->method()); |
duke@435 | 1840 | nmethodLocker nml(nm); |
duke@435 | 1841 | post_pending_compiled_method_unload_events(); |
duke@435 | 1842 | } |
duke@435 | 1843 | |
duke@435 | 1844 | EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, |
duke@435 | 1845 | ("JVMTI [%s] method compile load event triggered", |
duke@435 | 1846 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1847 | |
duke@435 | 1848 | JvmtiEnvIterator it; |
duke@435 | 1849 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 1850 | if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { |
duke@435 | 1851 | |
duke@435 | 1852 | EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, |
duke@435 | 1853 | ("JVMTI [%s] class compile method load event sent %s.%s ", |
duke@435 | 1854 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 1855 | (nm->method() == NULL) ? "NULL" : nm->method()->klass_name()->as_C_string(), |
duke@435 | 1856 | (nm->method() == NULL) ? "NULL" : nm->method()->name()->as_C_string())); |
duke@435 | 1857 | |
duke@435 | 1858 | ResourceMark rm(thread); |
dcubed@1619 | 1859 | |
dcubed@1619 | 1860 | // Add inlining information |
dcubed@1619 | 1861 | jvmtiCompiledMethodLoadInlineRecord* inlinerecord = create_inline_record(nm); |
dcubed@1619 | 1862 | // Pass inlining information through the void pointer |
dcubed@1619 | 1863 | JvmtiCompiledMethodLoadEventMark jem(thread, nm, inlinerecord); |
duke@435 | 1864 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1865 | jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; |
duke@435 | 1866 | if (callback != NULL) { |
duke@435 | 1867 | (*callback)(env->jvmti_external(), jem.jni_methodID(), |
duke@435 | 1868 | jem.code_size(), jem.code_data(), jem.map_length(), |
duke@435 | 1869 | jem.map(), jem.compile_info()); |
duke@435 | 1870 | } |
duke@435 | 1871 | } |
duke@435 | 1872 | } |
duke@435 | 1873 | } |
duke@435 | 1874 | |
duke@435 | 1875 | |
duke@435 | 1876 | // post a COMPILED_METHOD_LOAD event for a given environment |
duke@435 | 1877 | void JvmtiExport::post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length, |
duke@435 | 1878 | const void *code_begin, const jint map_length, |
duke@435 | 1879 | const jvmtiAddrLocationMap* map) |
duke@435 | 1880 | { |
duke@435 | 1881 | JavaThread* thread = JavaThread::current(); |
duke@435 | 1882 | EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, |
duke@435 | 1883 | ("JVMTI [%s] method compile load event triggered (by GenerateEvents)", |
duke@435 | 1884 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1885 | if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) { |
duke@435 | 1886 | |
duke@435 | 1887 | EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD, |
duke@435 | 1888 | ("JVMTI [%s] class compile method load event sent (by GenerateEvents), jmethodID=" PTR_FORMAT, |
duke@435 | 1889 | JvmtiTrace::safe_get_thread_name(thread), method)); |
duke@435 | 1890 | |
duke@435 | 1891 | JvmtiEventMark jem(thread); |
duke@435 | 1892 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1893 | jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad; |
duke@435 | 1894 | if (callback != NULL) { |
duke@435 | 1895 | (*callback)(env->jvmti_external(), method, |
duke@435 | 1896 | length, code_begin, map_length, |
duke@435 | 1897 | map, NULL); |
duke@435 | 1898 | } |
duke@435 | 1899 | } |
duke@435 | 1900 | } |
duke@435 | 1901 | |
duke@435 | 1902 | // used at a safepoint to post a CompiledMethodUnload event |
never@1932 | 1903 | void JvmtiExport::post_compiled_method_unload(jmethodID mid, const void *code_begin) { |
never@1932 | 1904 | if (SafepointSynchronize::is_at_safepoint()) { |
never@1932 | 1905 | // Class unloading can cause nmethod unloading which is reported |
never@1932 | 1906 | // by the VMThread. These must be batched to be processed later. |
never@1932 | 1907 | if (_pending_compiled_method_unload_method_ids == NULL) { |
never@1932 | 1908 | // create list lazily |
never@1932 | 1909 | _pending_compiled_method_unload_method_ids = new (ResourceObj::C_HEAP) GrowableArray<jmethodID>(10,true); |
never@1932 | 1910 | _pending_compiled_method_unload_code_begins = new (ResourceObj::C_HEAP) GrowableArray<const void *>(10,true); |
never@1932 | 1911 | } |
never@1932 | 1912 | _pending_compiled_method_unload_method_ids->append(mid); |
never@1932 | 1913 | _pending_compiled_method_unload_code_begins->append(code_begin); |
never@1932 | 1914 | _have_pending_compiled_method_unload_events = true; |
never@1932 | 1915 | } else { |
never@1932 | 1916 | // Unloading caused by the sweeper can be reported synchronously. |
never@1932 | 1917 | if (have_pending_compiled_method_unload_events()) { |
never@1932 | 1918 | post_pending_compiled_method_unload_events(); |
never@1932 | 1919 | } |
never@1932 | 1920 | post_compiled_method_unload_internal(JavaThread::current(), mid, code_begin); |
duke@435 | 1921 | } |
duke@435 | 1922 | } |
duke@435 | 1923 | |
duke@435 | 1924 | void JvmtiExport::post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) { |
duke@435 | 1925 | JavaThread* thread = JavaThread::current(); |
duke@435 | 1926 | EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, |
duke@435 | 1927 | ("JVMTI [%s] method dynamic code generated event triggered", |
duke@435 | 1928 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1929 | JvmtiEnvIterator it; |
duke@435 | 1930 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 1931 | if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { |
duke@435 | 1932 | EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, |
duke@435 | 1933 | ("JVMTI [%s] dynamic code generated event sent for %s", |
duke@435 | 1934 | JvmtiTrace::safe_get_thread_name(thread), name)); |
duke@435 | 1935 | JvmtiEventMark jem(thread); |
duke@435 | 1936 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1937 | jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); |
duke@435 | 1938 | jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; |
duke@435 | 1939 | if (callback != NULL) { |
duke@435 | 1940 | (*callback)(env->jvmti_external(), name, (void*)code_begin, length); |
duke@435 | 1941 | } |
duke@435 | 1942 | } |
duke@435 | 1943 | } |
duke@435 | 1944 | } |
duke@435 | 1945 | |
duke@435 | 1946 | void JvmtiExport::post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) { |
duke@435 | 1947 | // In theory everyone coming thru here is in_vm but we need to be certain |
duke@435 | 1948 | // because a callee will do a vm->native transition |
duke@435 | 1949 | ThreadInVMfromUnknown __tiv; |
duke@435 | 1950 | jvmtiPhase phase = JvmtiEnv::get_phase(); |
duke@435 | 1951 | if (phase == JVMTI_PHASE_PRIMORDIAL || phase == JVMTI_PHASE_START) { |
duke@435 | 1952 | post_dynamic_code_generated_internal(name, code_begin, code_end); |
duke@435 | 1953 | return; |
duke@435 | 1954 | } |
duke@435 | 1955 | |
duke@435 | 1956 | if (have_pending_compiled_method_unload_events()) { |
duke@435 | 1957 | post_pending_compiled_method_unload_events(); |
duke@435 | 1958 | } |
duke@435 | 1959 | post_dynamic_code_generated_internal(name, code_begin, code_end); |
duke@435 | 1960 | } |
duke@435 | 1961 | |
duke@435 | 1962 | |
duke@435 | 1963 | // post a DYNAMIC_CODE_GENERATED event for a given environment |
duke@435 | 1964 | // used by GenerateEvents |
duke@435 | 1965 | void JvmtiExport::post_dynamic_code_generated(JvmtiEnv* env, const char *name, |
duke@435 | 1966 | const void *code_begin, const void *code_end) |
duke@435 | 1967 | { |
duke@435 | 1968 | JavaThread* thread = JavaThread::current(); |
duke@435 | 1969 | EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, |
duke@435 | 1970 | ("JVMTI [%s] dynamic code generated event triggered (by GenerateEvents)", |
duke@435 | 1971 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 1972 | if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) { |
duke@435 | 1973 | EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED, |
duke@435 | 1974 | ("JVMTI [%s] dynamic code generated event sent for %s", |
duke@435 | 1975 | JvmtiTrace::safe_get_thread_name(thread), name)); |
duke@435 | 1976 | JvmtiEventMark jem(thread); |
duke@435 | 1977 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 1978 | jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char)); |
duke@435 | 1979 | jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated; |
duke@435 | 1980 | if (callback != NULL) { |
duke@435 | 1981 | (*callback)(env->jvmti_external(), name, (void*)code_begin, length); |
duke@435 | 1982 | } |
duke@435 | 1983 | } |
duke@435 | 1984 | } |
duke@435 | 1985 | |
duke@435 | 1986 | // post a DynamicCodeGenerated event while holding locks in the VM. |
duke@435 | 1987 | void JvmtiExport::post_dynamic_code_generated_while_holding_locks(const char* name, |
duke@435 | 1988 | address code_begin, address code_end) |
duke@435 | 1989 | { |
duke@435 | 1990 | // register the stub with the current dynamic code event collector |
duke@435 | 1991 | JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); |
dcubed@1044 | 1992 | // state can only be NULL if the current thread is exiting which |
dcubed@1044 | 1993 | // should not happen since we're trying to post an event |
dcubed@1044 | 1994 | guarantee(state != NULL, "attempt to register stub via an exiting thread"); |
duke@435 | 1995 | JvmtiDynamicCodeEventCollector* collector = state->get_dynamic_code_event_collector(); |
duke@435 | 1996 | guarantee(collector != NULL, "attempt to register stub without event collector"); |
duke@435 | 1997 | collector->register_stub(name, code_begin, code_end); |
duke@435 | 1998 | } |
duke@435 | 1999 | |
duke@435 | 2000 | // Collect all the vm internally allocated objects which are visible to java world |
duke@435 | 2001 | void JvmtiExport::record_vm_internal_object_allocation(oop obj) { |
duke@435 | 2002 | Thread* thread = ThreadLocalStorage::thread(); |
duke@435 | 2003 | if (thread != NULL && thread->is_Java_thread()) { |
duke@435 | 2004 | // Can not take safepoint here. |
duke@435 | 2005 | No_Safepoint_Verifier no_sfpt; |
duke@435 | 2006 | // Can not take safepoint here so can not use state_for to get |
duke@435 | 2007 | // jvmti thread state. |
duke@435 | 2008 | JvmtiThreadState *state = ((JavaThread*)thread)->jvmti_thread_state(); |
duke@435 | 2009 | if (state != NULL ) { |
duke@435 | 2010 | // state is non NULL when VMObjectAllocEventCollector is enabled. |
duke@435 | 2011 | JvmtiVMObjectAllocEventCollector *collector; |
duke@435 | 2012 | collector = state->get_vm_object_alloc_event_collector(); |
duke@435 | 2013 | if (collector != NULL && collector->is_enabled()) { |
duke@435 | 2014 | // Don't record classes as these will be notified via the ClassLoad |
duke@435 | 2015 | // event. |
never@1577 | 2016 | if (obj->klass() != SystemDictionary::Class_klass()) { |
duke@435 | 2017 | collector->record_allocation(obj); |
duke@435 | 2018 | } |
duke@435 | 2019 | } |
duke@435 | 2020 | } |
duke@435 | 2021 | } |
duke@435 | 2022 | } |
duke@435 | 2023 | |
duke@435 | 2024 | void JvmtiExport::post_garbage_collection_finish() { |
duke@435 | 2025 | Thread *thread = Thread::current(); // this event is posted from VM-Thread. |
duke@435 | 2026 | EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, |
duke@435 | 2027 | ("JVMTI [%s] garbage collection finish event triggered", |
duke@435 | 2028 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2029 | JvmtiEnvIterator it; |
duke@435 | 2030 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 2031 | if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH)) { |
duke@435 | 2032 | EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, |
duke@435 | 2033 | ("JVMTI [%s] garbage collection finish event sent ", |
duke@435 | 2034 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2035 | JvmtiThreadEventTransition jet(thread); |
duke@435 | 2036 | // JNIEnv is NULL here because this event is posted from VM Thread |
duke@435 | 2037 | jvmtiEventGarbageCollectionFinish callback = env->callbacks()->GarbageCollectionFinish; |
duke@435 | 2038 | if (callback != NULL) { |
duke@435 | 2039 | (*callback)(env->jvmti_external()); |
duke@435 | 2040 | } |
duke@435 | 2041 | } |
duke@435 | 2042 | } |
duke@435 | 2043 | } |
duke@435 | 2044 | |
duke@435 | 2045 | void JvmtiExport::post_garbage_collection_start() { |
duke@435 | 2046 | Thread* thread = Thread::current(); // this event is posted from vm-thread. |
duke@435 | 2047 | EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, |
duke@435 | 2048 | ("JVMTI [%s] garbage collection start event triggered", |
duke@435 | 2049 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2050 | JvmtiEnvIterator it; |
duke@435 | 2051 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 2052 | if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_START)) { |
duke@435 | 2053 | EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START, |
duke@435 | 2054 | ("JVMTI [%s] garbage collection start event sent ", |
duke@435 | 2055 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2056 | JvmtiThreadEventTransition jet(thread); |
duke@435 | 2057 | // JNIEnv is NULL here because this event is posted from VM Thread |
duke@435 | 2058 | jvmtiEventGarbageCollectionStart callback = env->callbacks()->GarbageCollectionStart; |
duke@435 | 2059 | if (callback != NULL) { |
duke@435 | 2060 | (*callback)(env->jvmti_external()); |
duke@435 | 2061 | } |
duke@435 | 2062 | } |
duke@435 | 2063 | } |
duke@435 | 2064 | } |
duke@435 | 2065 | |
duke@435 | 2066 | void JvmtiExport::post_data_dump() { |
duke@435 | 2067 | Thread *thread = Thread::current(); |
duke@435 | 2068 | EVT_TRIG_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, |
duke@435 | 2069 | ("JVMTI [%s] data dump request event triggered", |
duke@435 | 2070 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2071 | JvmtiEnvIterator it; |
duke@435 | 2072 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 2073 | if (env->is_enabled(JVMTI_EVENT_DATA_DUMP_REQUEST)) { |
duke@435 | 2074 | EVT_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST, |
duke@435 | 2075 | ("JVMTI [%s] data dump request event sent ", |
duke@435 | 2076 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2077 | JvmtiThreadEventTransition jet(thread); |
duke@435 | 2078 | // JNIEnv is NULL here because this event is posted from VM Thread |
duke@435 | 2079 | jvmtiEventDataDumpRequest callback = env->callbacks()->DataDumpRequest; |
duke@435 | 2080 | if (callback != NULL) { |
duke@435 | 2081 | (*callback)(env->jvmti_external()); |
duke@435 | 2082 | } |
duke@435 | 2083 | } |
duke@435 | 2084 | } |
duke@435 | 2085 | } |
duke@435 | 2086 | |
duke@435 | 2087 | void JvmtiExport::post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) { |
duke@435 | 2088 | oop object = (oop)obj_mntr->object(); |
duke@435 | 2089 | if (!ServiceUtil::visible_oop(object)) { |
duke@435 | 2090 | // Ignore monitor contended enter for vm internal object. |
duke@435 | 2091 | return; |
duke@435 | 2092 | } |
duke@435 | 2093 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 2094 | if (state == NULL) { |
duke@435 | 2095 | return; |
duke@435 | 2096 | } |
duke@435 | 2097 | |
duke@435 | 2098 | HandleMark hm(thread); |
duke@435 | 2099 | Handle h(thread, object); |
duke@435 | 2100 | |
duke@435 | 2101 | EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, |
duke@435 | 2102 | ("JVMTI [%s] montior contended enter event triggered", |
duke@435 | 2103 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2104 | |
duke@435 | 2105 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 2106 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 2107 | if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTER)) { |
duke@435 | 2108 | EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, |
duke@435 | 2109 | ("JVMTI [%s] monitor contended enter event sent", |
duke@435 | 2110 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2111 | JvmtiMonitorEventMark jem(thread, h()); |
duke@435 | 2112 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 2113 | JvmtiThreadEventTransition jet(thread); |
duke@435 | 2114 | jvmtiEventMonitorContendedEnter callback = env->callbacks()->MonitorContendedEnter; |
duke@435 | 2115 | if (callback != NULL) { |
duke@435 | 2116 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); |
duke@435 | 2117 | } |
duke@435 | 2118 | } |
duke@435 | 2119 | } |
duke@435 | 2120 | } |
duke@435 | 2121 | |
duke@435 | 2122 | void JvmtiExport::post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) { |
duke@435 | 2123 | oop object = (oop)obj_mntr->object(); |
duke@435 | 2124 | if (!ServiceUtil::visible_oop(object)) { |
duke@435 | 2125 | // Ignore monitor contended entered for vm internal object. |
duke@435 | 2126 | return; |
duke@435 | 2127 | } |
duke@435 | 2128 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 2129 | if (state == NULL) { |
duke@435 | 2130 | return; |
duke@435 | 2131 | } |
duke@435 | 2132 | |
duke@435 | 2133 | HandleMark hm(thread); |
duke@435 | 2134 | Handle h(thread, object); |
duke@435 | 2135 | |
duke@435 | 2136 | EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, |
duke@435 | 2137 | ("JVMTI [%s] montior contended entered event triggered", |
duke@435 | 2138 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2139 | |
duke@435 | 2140 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 2141 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 2142 | if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED)) { |
duke@435 | 2143 | EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, |
duke@435 | 2144 | ("JVMTI [%s] monitor contended enter event sent", |
duke@435 | 2145 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2146 | JvmtiMonitorEventMark jem(thread, h()); |
duke@435 | 2147 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 2148 | JvmtiThreadEventTransition jet(thread); |
duke@435 | 2149 | jvmtiEventMonitorContendedEntered callback = env->callbacks()->MonitorContendedEntered; |
duke@435 | 2150 | if (callback != NULL) { |
duke@435 | 2151 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object()); |
duke@435 | 2152 | } |
duke@435 | 2153 | } |
duke@435 | 2154 | } |
duke@435 | 2155 | } |
duke@435 | 2156 | |
duke@435 | 2157 | void JvmtiExport::post_monitor_wait(JavaThread *thread, oop object, |
duke@435 | 2158 | jlong timeout) { |
duke@435 | 2159 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 2160 | if (state == NULL) { |
duke@435 | 2161 | return; |
duke@435 | 2162 | } |
duke@435 | 2163 | |
duke@435 | 2164 | HandleMark hm(thread); |
duke@435 | 2165 | Handle h(thread, object); |
duke@435 | 2166 | |
duke@435 | 2167 | EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAIT, |
duke@435 | 2168 | ("JVMTI [%s] montior wait event triggered", |
duke@435 | 2169 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2170 | |
duke@435 | 2171 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 2172 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 2173 | if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAIT)) { |
duke@435 | 2174 | EVT_TRACE(JVMTI_EVENT_MONITOR_WAIT, |
duke@435 | 2175 | ("JVMTI [%s] monitor wait event sent ", |
duke@435 | 2176 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2177 | JvmtiMonitorEventMark jem(thread, h()); |
duke@435 | 2178 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 2179 | JvmtiThreadEventTransition jet(thread); |
duke@435 | 2180 | jvmtiEventMonitorWait callback = env->callbacks()->MonitorWait; |
duke@435 | 2181 | if (callback != NULL) { |
duke@435 | 2182 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 2183 | jem.jni_object(), timeout); |
duke@435 | 2184 | } |
duke@435 | 2185 | } |
duke@435 | 2186 | } |
duke@435 | 2187 | } |
duke@435 | 2188 | |
duke@435 | 2189 | void JvmtiExport::post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) { |
duke@435 | 2190 | oop object = (oop)obj_mntr->object(); |
duke@435 | 2191 | if (!ServiceUtil::visible_oop(object)) { |
duke@435 | 2192 | // Ignore monitor waited for vm internal object. |
duke@435 | 2193 | return; |
duke@435 | 2194 | } |
duke@435 | 2195 | JvmtiThreadState *state = thread->jvmti_thread_state(); |
duke@435 | 2196 | if (state == NULL) { |
duke@435 | 2197 | return; |
duke@435 | 2198 | } |
duke@435 | 2199 | |
duke@435 | 2200 | HandleMark hm(thread); |
duke@435 | 2201 | Handle h(thread, object); |
duke@435 | 2202 | |
duke@435 | 2203 | EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAITED, |
duke@435 | 2204 | ("JVMTI [%s] montior waited event triggered", |
duke@435 | 2205 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2206 | |
duke@435 | 2207 | JvmtiEnvThreadStateIterator it(state); |
duke@435 | 2208 | for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) { |
duke@435 | 2209 | if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAITED)) { |
duke@435 | 2210 | EVT_TRACE(JVMTI_EVENT_MONITOR_WAITED, |
duke@435 | 2211 | ("JVMTI [%s] monitor waited event sent ", |
duke@435 | 2212 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2213 | JvmtiMonitorEventMark jem(thread, h()); |
duke@435 | 2214 | JvmtiEnv *env = ets->get_env(); |
duke@435 | 2215 | JvmtiThreadEventTransition jet(thread); |
duke@435 | 2216 | jvmtiEventMonitorWaited callback = env->callbacks()->MonitorWaited; |
duke@435 | 2217 | if (callback != NULL) { |
duke@435 | 2218 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 2219 | jem.jni_object(), timed_out); |
duke@435 | 2220 | } |
duke@435 | 2221 | } |
duke@435 | 2222 | } |
duke@435 | 2223 | } |
duke@435 | 2224 | |
duke@435 | 2225 | |
duke@435 | 2226 | void JvmtiExport::post_vm_object_alloc(JavaThread *thread, oop object) { |
duke@435 | 2227 | EVT_TRIG_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Trg vm object alloc triggered", |
duke@435 | 2228 | JvmtiTrace::safe_get_thread_name(thread))); |
duke@435 | 2229 | if (object == NULL) { |
duke@435 | 2230 | return; |
duke@435 | 2231 | } |
duke@435 | 2232 | HandleMark hm(thread); |
duke@435 | 2233 | Handle h(thread, object); |
duke@435 | 2234 | JvmtiEnvIterator it; |
duke@435 | 2235 | for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) { |
duke@435 | 2236 | if (env->is_enabled(JVMTI_EVENT_VM_OBJECT_ALLOC)) { |
duke@435 | 2237 | EVT_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Evt vmobject alloc sent %s", |
duke@435 | 2238 | JvmtiTrace::safe_get_thread_name(thread), |
duke@435 | 2239 | object==NULL? "NULL" : Klass::cast(java_lang_Class::as_klassOop(object))->external_name())); |
duke@435 | 2240 | |
duke@435 | 2241 | JvmtiVMObjectAllocEventMark jem(thread, h()); |
duke@435 | 2242 | JvmtiJavaThreadEventTransition jet(thread); |
duke@435 | 2243 | jvmtiEventVMObjectAlloc callback = env->callbacks()->VMObjectAlloc; |
duke@435 | 2244 | if (callback != NULL) { |
duke@435 | 2245 | (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), |
duke@435 | 2246 | jem.jni_jobject(), jem.jni_class(), jem.size()); |
duke@435 | 2247 | } |
duke@435 | 2248 | } |
duke@435 | 2249 | } |
duke@435 | 2250 | } |
duke@435 | 2251 | |
duke@435 | 2252 | //////////////////////////////////////////////////////////////////////////////////////////////// |
duke@435 | 2253 | |
duke@435 | 2254 | void JvmtiExport::cleanup_thread(JavaThread* thread) { |
duke@435 | 2255 | assert(JavaThread::current() == thread, "thread is not current"); |
duke@435 | 2256 | |
duke@435 | 2257 | |
duke@435 | 2258 | // This has to happen after the thread state is removed, which is |
duke@435 | 2259 | // why it is not in post_thread_end_event like its complement |
duke@435 | 2260 | // Maybe both these functions should be rolled into the posts? |
duke@435 | 2261 | JvmtiEventController::thread_ended(thread); |
duke@435 | 2262 | } |
duke@435 | 2263 | |
duke@435 | 2264 | void JvmtiExport::oops_do(OopClosure* f) { |
duke@435 | 2265 | JvmtiCurrentBreakpoints::oops_do(f); |
duke@435 | 2266 | JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(f); |
duke@435 | 2267 | } |
duke@435 | 2268 | |
duke@435 | 2269 | // Onload raw monitor transition. |
duke@435 | 2270 | void JvmtiExport::transition_pending_onload_raw_monitors() { |
duke@435 | 2271 | JvmtiPendingMonitors::transition_raw_monitors(); |
duke@435 | 2272 | } |
duke@435 | 2273 | |
duke@435 | 2274 | //////////////////////////////////////////////////////////////////////////////////////////////// |
duke@435 | 2275 | |
duke@435 | 2276 | // type for the Agent_OnAttach entry point |
duke@435 | 2277 | extern "C" { |
duke@435 | 2278 | typedef jint (JNICALL *OnAttachEntry_t)(JavaVM*, char *, void *); |
duke@435 | 2279 | } |
duke@435 | 2280 | |
duke@435 | 2281 | #ifndef SERVICES_KERNEL |
duke@435 | 2282 | jint JvmtiExport::load_agent_library(AttachOperation* op, outputStream* st) { |
duke@435 | 2283 | char ebuf[1024]; |
duke@435 | 2284 | char buffer[JVM_MAXPATHLEN]; |
duke@435 | 2285 | void* library; |
duke@435 | 2286 | jint result = JNI_ERR; |
duke@435 | 2287 | |
duke@435 | 2288 | // get agent name and options |
duke@435 | 2289 | const char* agent = op->arg(0); |
duke@435 | 2290 | const char* absParam = op->arg(1); |
duke@435 | 2291 | const char* options = op->arg(2); |
duke@435 | 2292 | |
duke@435 | 2293 | // The abs paramter should be "true" or "false" |
duke@435 | 2294 | bool is_absolute_path = (absParam != NULL) && (strcmp(absParam,"true")==0); |
duke@435 | 2295 | |
duke@435 | 2296 | |
duke@435 | 2297 | // If the path is absolute we attempt to load the library. Otherwise we try to |
duke@435 | 2298 | // load it from the standard dll directory. |
duke@435 | 2299 | |
duke@435 | 2300 | if (is_absolute_path) { |
ikrylov@2322 | 2301 | library = os::dll_load(agent, ebuf, sizeof ebuf); |
duke@435 | 2302 | } else { |
duke@435 | 2303 | // Try to load the agent from the standard dll directory |
ikrylov@2322 | 2304 | os::dll_build_name(buffer, sizeof(buffer), Arguments::get_dll_dir(), agent); |
ikrylov@2322 | 2305 | library = os::dll_load(buffer, ebuf, sizeof ebuf); |
duke@435 | 2306 | if (library == NULL) { |
duke@435 | 2307 | // not found - try local path |
duke@435 | 2308 | char ns[1] = {0}; |
ikrylov@2322 | 2309 | os::dll_build_name(buffer, sizeof(buffer), ns, agent); |
ikrylov@2322 | 2310 | library = os::dll_load(buffer, ebuf, sizeof ebuf); |
duke@435 | 2311 | } |
duke@435 | 2312 | } |
duke@435 | 2313 | |
duke@435 | 2314 | // If the library was loaded then we attempt to invoke the Agent_OnAttach |
duke@435 | 2315 | // function |
duke@435 | 2316 | if (library != NULL) { |
duke@435 | 2317 | |
duke@435 | 2318 | // Lookup the Agent_OnAttach function |
duke@435 | 2319 | OnAttachEntry_t on_attach_entry = NULL; |
duke@435 | 2320 | const char *on_attach_symbols[] = AGENT_ONATTACH_SYMBOLS; |
duke@435 | 2321 | for (uint symbol_index = 0; symbol_index < ARRAY_SIZE(on_attach_symbols); symbol_index++) { |
duke@435 | 2322 | on_attach_entry = |
ikrylov@2322 | 2323 | CAST_TO_FN_PTR(OnAttachEntry_t, os::dll_lookup(library, on_attach_symbols[symbol_index])); |
duke@435 | 2324 | if (on_attach_entry != NULL) break; |
duke@435 | 2325 | } |
duke@435 | 2326 | |
duke@435 | 2327 | if (on_attach_entry == NULL) { |
duke@435 | 2328 | // Agent_OnAttach missing - unload library |
ikrylov@2322 | 2329 | os::dll_unload(library); |
duke@435 | 2330 | } else { |
duke@435 | 2331 | // Invoke the Agent_OnAttach function |
duke@435 | 2332 | JavaThread* THREAD = JavaThread::current(); |
duke@435 | 2333 | { |
duke@435 | 2334 | extern struct JavaVM_ main_vm; |
duke@435 | 2335 | JvmtiThreadEventMark jem(THREAD); |
duke@435 | 2336 | JvmtiJavaThreadEventTransition jet(THREAD); |
duke@435 | 2337 | |
duke@435 | 2338 | result = (*on_attach_entry)(&main_vm, (char*)options, NULL); |
duke@435 | 2339 | } |
duke@435 | 2340 | |
duke@435 | 2341 | // Agent_OnAttach may have used JNI |
duke@435 | 2342 | if (HAS_PENDING_EXCEPTION) { |
duke@435 | 2343 | CLEAR_PENDING_EXCEPTION; |
duke@435 | 2344 | } |
duke@435 | 2345 | |
duke@435 | 2346 | // If OnAttach returns JNI_OK then we add it to the list of |
duke@435 | 2347 | // agent libraries so that we can call Agent_OnUnload later. |
duke@435 | 2348 | if (result == JNI_OK) { |
duke@435 | 2349 | Arguments::add_loaded_agent(agent, (char*)options, is_absolute_path, library); |
duke@435 | 2350 | } |
duke@435 | 2351 | |
duke@435 | 2352 | // Agent_OnAttach executed so completion status is JNI_OK |
duke@435 | 2353 | st->print_cr("%d", result); |
duke@435 | 2354 | result = JNI_OK; |
duke@435 | 2355 | } |
duke@435 | 2356 | } |
duke@435 | 2357 | return result; |
duke@435 | 2358 | } |
duke@435 | 2359 | #endif // SERVICES_KERNEL |
duke@435 | 2360 | |
duke@435 | 2361 | // CMS has completed referencing processing so may need to update |
duke@435 | 2362 | // tag maps. |
duke@435 | 2363 | void JvmtiExport::cms_ref_processing_epilogue() { |
duke@435 | 2364 | if (JvmtiEnv::environments_might_exist()) { |
duke@435 | 2365 | JvmtiTagMap::cms_ref_processing_epilogue(); |
duke@435 | 2366 | } |
duke@435 | 2367 | } |
duke@435 | 2368 | |
duke@435 | 2369 | |
duke@435 | 2370 | //////////////////////////////////////////////////////////////////////////////////////////////// |
duke@435 | 2371 | |
duke@435 | 2372 | // Setup current current thread for event collection. |
duke@435 | 2373 | void JvmtiEventCollector::setup_jvmti_thread_state() { |
duke@435 | 2374 | // set this event collector to be the current one. |
duke@435 | 2375 | JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current()); |
dcubed@1044 | 2376 | // state can only be NULL if the current thread is exiting which |
dcubed@1044 | 2377 | // should not happen since we're trying to configure for event collection |
dcubed@1044 | 2378 | guarantee(state != NULL, "exiting thread called setup_jvmti_thread_state"); |
duke@435 | 2379 | if (is_vm_object_alloc_event()) { |
duke@435 | 2380 | _prev = state->get_vm_object_alloc_event_collector(); |
duke@435 | 2381 | state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)this); |
duke@435 | 2382 | } else if (is_dynamic_code_event()) { |
duke@435 | 2383 | _prev = state->get_dynamic_code_event_collector(); |
duke@435 | 2384 | state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)this); |
duke@435 | 2385 | } |
duke@435 | 2386 | } |
duke@435 | 2387 | |
duke@435 | 2388 | // Unset current event collection in this thread and reset it with previous |
duke@435 | 2389 | // collector. |
duke@435 | 2390 | void JvmtiEventCollector::unset_jvmti_thread_state() { |
duke@435 | 2391 | JvmtiThreadState* state = JavaThread::current()->jvmti_thread_state(); |
duke@435 | 2392 | if (state != NULL) { |
duke@435 | 2393 | // restore the previous event collector (if any) |
duke@435 | 2394 | if (is_vm_object_alloc_event()) { |
duke@435 | 2395 | if (state->get_vm_object_alloc_event_collector() == this) { |
duke@435 | 2396 | state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)_prev); |
duke@435 | 2397 | } else { |
duke@435 | 2398 | // this thread's jvmti state was created during the scope of |
duke@435 | 2399 | // the event collector. |
duke@435 | 2400 | } |
duke@435 | 2401 | } else { |
duke@435 | 2402 | if (is_dynamic_code_event()) { |
duke@435 | 2403 | if (state->get_dynamic_code_event_collector() == this) { |
duke@435 | 2404 | state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)_prev); |
duke@435 | 2405 | } else { |
duke@435 | 2406 | // this thread's jvmti state was created during the scope of |
duke@435 | 2407 | // the event collector. |
duke@435 | 2408 | } |
duke@435 | 2409 | } |
duke@435 | 2410 | } |
duke@435 | 2411 | } |
duke@435 | 2412 | } |
duke@435 | 2413 | |
duke@435 | 2414 | // create the dynamic code event collector |
duke@435 | 2415 | JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(NULL) { |
duke@435 | 2416 | if (JvmtiExport::should_post_dynamic_code_generated()) { |
duke@435 | 2417 | setup_jvmti_thread_state(); |
duke@435 | 2418 | } |
duke@435 | 2419 | } |
duke@435 | 2420 | |
duke@435 | 2421 | // iterate over any code blob descriptors collected and post a |
duke@435 | 2422 | // DYNAMIC_CODE_GENERATED event to the profiler. |
duke@435 | 2423 | JvmtiDynamicCodeEventCollector::~JvmtiDynamicCodeEventCollector() { |
duke@435 | 2424 | assert(!JavaThread::current()->owns_locks(), "all locks must be released to post deferred events"); |
duke@435 | 2425 | // iterate over any code blob descriptors that we collected |
duke@435 | 2426 | if (_code_blobs != NULL) { |
duke@435 | 2427 | for (int i=0; i<_code_blobs->length(); i++) { |
duke@435 | 2428 | JvmtiCodeBlobDesc* blob = _code_blobs->at(i); |
duke@435 | 2429 | JvmtiExport::post_dynamic_code_generated(blob->name(), blob->code_begin(), blob->code_end()); |
duke@435 | 2430 | FreeHeap(blob); |
duke@435 | 2431 | } |
duke@435 | 2432 | delete _code_blobs; |
duke@435 | 2433 | } |
duke@435 | 2434 | unset_jvmti_thread_state(); |
duke@435 | 2435 | } |
duke@435 | 2436 | |
duke@435 | 2437 | // register a stub |
duke@435 | 2438 | void JvmtiDynamicCodeEventCollector::register_stub(const char* name, address start, address end) { |
duke@435 | 2439 | if (_code_blobs == NULL) { |
duke@435 | 2440 | _code_blobs = new (ResourceObj::C_HEAP) GrowableArray<JvmtiCodeBlobDesc*>(1,true); |
duke@435 | 2441 | } |
duke@435 | 2442 | _code_blobs->append(new JvmtiCodeBlobDesc(name, start, end)); |
duke@435 | 2443 | } |
duke@435 | 2444 | |
duke@435 | 2445 | // Setup current thread to record vm allocated objects. |
duke@435 | 2446 | JvmtiVMObjectAllocEventCollector::JvmtiVMObjectAllocEventCollector() : _allocated(NULL) { |
duke@435 | 2447 | if (JvmtiExport::should_post_vm_object_alloc()) { |
duke@435 | 2448 | _enable = true; |
duke@435 | 2449 | setup_jvmti_thread_state(); |
duke@435 | 2450 | } else { |
duke@435 | 2451 | _enable = false; |
duke@435 | 2452 | } |
duke@435 | 2453 | } |
duke@435 | 2454 | |
duke@435 | 2455 | // Post vm_object_alloc event for vm allocated objects visible to java |
duke@435 | 2456 | // world. |
duke@435 | 2457 | JvmtiVMObjectAllocEventCollector::~JvmtiVMObjectAllocEventCollector() { |
duke@435 | 2458 | if (_allocated != NULL) { |
duke@435 | 2459 | set_enabled(false); |
duke@435 | 2460 | for (int i = 0; i < _allocated->length(); i++) { |
duke@435 | 2461 | oop obj = _allocated->at(i); |
duke@435 | 2462 | if (ServiceUtil::visible_oop(obj)) { |
duke@435 | 2463 | JvmtiExport::post_vm_object_alloc(JavaThread::current(), obj); |
duke@435 | 2464 | } |
duke@435 | 2465 | } |
duke@435 | 2466 | delete _allocated; |
duke@435 | 2467 | } |
duke@435 | 2468 | unset_jvmti_thread_state(); |
duke@435 | 2469 | } |
duke@435 | 2470 | |
duke@435 | 2471 | void JvmtiVMObjectAllocEventCollector::record_allocation(oop obj) { |
duke@435 | 2472 | assert(is_enabled(), "VM object alloc event collector is not enabled"); |
duke@435 | 2473 | if (_allocated == NULL) { |
duke@435 | 2474 | _allocated = new (ResourceObj::C_HEAP) GrowableArray<oop>(1, true); |
duke@435 | 2475 | } |
duke@435 | 2476 | _allocated->push(obj); |
duke@435 | 2477 | } |
duke@435 | 2478 | |
duke@435 | 2479 | // GC support. |
duke@435 | 2480 | void JvmtiVMObjectAllocEventCollector::oops_do(OopClosure* f) { |
duke@435 | 2481 | if (_allocated != NULL) { |
duke@435 | 2482 | for(int i=_allocated->length() - 1; i >= 0; i--) { |
duke@435 | 2483 | if (_allocated->at(i) != NULL) { |
duke@435 | 2484 | f->do_oop(_allocated->adr_at(i)); |
duke@435 | 2485 | } |
duke@435 | 2486 | } |
duke@435 | 2487 | } |
duke@435 | 2488 | } |
duke@435 | 2489 | |
duke@435 | 2490 | void JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(OopClosure* f) { |
duke@435 | 2491 | // no-op if jvmti not enabled |
duke@435 | 2492 | if (!JvmtiEnv::environments_might_exist()) { |
duke@435 | 2493 | return; |
duke@435 | 2494 | } |
duke@435 | 2495 | |
duke@435 | 2496 | // Runs at safepoint. So no need to acquire Threads_lock. |
duke@435 | 2497 | for (JavaThread *jthr = Threads::first(); jthr != NULL; jthr = jthr->next()) { |
duke@435 | 2498 | JvmtiThreadState *state = jthr->jvmti_thread_state(); |
duke@435 | 2499 | if (state != NULL) { |
duke@435 | 2500 | JvmtiVMObjectAllocEventCollector *collector; |
duke@435 | 2501 | collector = state->get_vm_object_alloc_event_collector(); |
duke@435 | 2502 | while (collector != NULL) { |
duke@435 | 2503 | collector->oops_do(f); |
duke@435 | 2504 | collector = (JvmtiVMObjectAllocEventCollector *)collector->get_prev(); |
duke@435 | 2505 | } |
duke@435 | 2506 | } |
duke@435 | 2507 | } |
duke@435 | 2508 | } |
duke@435 | 2509 | |
duke@435 | 2510 | |
duke@435 | 2511 | // Disable collection of VMObjectAlloc events |
duke@435 | 2512 | NoJvmtiVMObjectAllocMark::NoJvmtiVMObjectAllocMark() : _collector(NULL) { |
duke@435 | 2513 | // a no-op if VMObjectAlloc event is not enabled |
duke@435 | 2514 | if (!JvmtiExport::should_post_vm_object_alloc()) { |
duke@435 | 2515 | return; |
duke@435 | 2516 | } |
duke@435 | 2517 | Thread* thread = ThreadLocalStorage::thread(); |
duke@435 | 2518 | if (thread != NULL && thread->is_Java_thread()) { |
duke@435 | 2519 | JavaThread* current_thread = (JavaThread*)thread; |
duke@435 | 2520 | JvmtiThreadState *state = current_thread->jvmti_thread_state(); |
duke@435 | 2521 | if (state != NULL) { |
duke@435 | 2522 | JvmtiVMObjectAllocEventCollector *collector; |
duke@435 | 2523 | collector = state->get_vm_object_alloc_event_collector(); |
duke@435 | 2524 | if (collector != NULL && collector->is_enabled()) { |
duke@435 | 2525 | _collector = collector; |
duke@435 | 2526 | _collector->set_enabled(false); |
duke@435 | 2527 | } |
duke@435 | 2528 | } |
duke@435 | 2529 | } |
duke@435 | 2530 | } |
duke@435 | 2531 | |
duke@435 | 2532 | // Re-Enable collection of VMObjectAlloc events (if previously enabled) |
duke@435 | 2533 | NoJvmtiVMObjectAllocMark::~NoJvmtiVMObjectAllocMark() { |
duke@435 | 2534 | if (was_enabled()) { |
duke@435 | 2535 | _collector->set_enabled(true); |
duke@435 | 2536 | } |
duke@435 | 2537 | }; |
duke@435 | 2538 | |
duke@435 | 2539 | JvmtiGCMarker::JvmtiGCMarker(bool full) : _full(full), _invocation_count(0) { |
duke@435 | 2540 | assert(Thread::current()->is_VM_thread(), "wrong thread"); |
duke@435 | 2541 | |
duke@435 | 2542 | // if there aren't any JVMTI environments then nothing to do |
duke@435 | 2543 | if (!JvmtiEnv::environments_might_exist()) { |
duke@435 | 2544 | return; |
duke@435 | 2545 | } |
duke@435 | 2546 | |
dcubed@1315 | 2547 | if (ForceFullGCJVMTIEpilogues) { |
dcubed@1315 | 2548 | // force 'Full GC' was done semantics for JVMTI GC epilogues |
dcubed@1315 | 2549 | _full = true; |
dcubed@1315 | 2550 | } |
dcubed@1315 | 2551 | |
duke@435 | 2552 | // GarbageCollectionStart event posted from VM thread - okay because |
duke@435 | 2553 | // JVMTI is clear that the "world is stopped" and callback shouldn't |
duke@435 | 2554 | // try to call into the VM. |
duke@435 | 2555 | if (JvmtiExport::should_post_garbage_collection_start()) { |
duke@435 | 2556 | JvmtiExport::post_garbage_collection_start(); |
duke@435 | 2557 | } |
duke@435 | 2558 | |
duke@435 | 2559 | // if "full" is false it probably means this is a scavenge of the young |
duke@435 | 2560 | // generation. However it could turn out that a "full" GC is required |
duke@435 | 2561 | // so we record the number of collections so that it can be checked in |
duke@435 | 2562 | // the destructor. |
duke@435 | 2563 | if (!_full) { |
ysr@777 | 2564 | _invocation_count = Universe::heap()->total_full_collections(); |
duke@435 | 2565 | } |
duke@435 | 2566 | |
duke@435 | 2567 | // Do clean up tasks that need to be done at a safepoint |
duke@435 | 2568 | JvmtiEnvBase::check_for_periodic_clean_up(); |
duke@435 | 2569 | } |
duke@435 | 2570 | |
duke@435 | 2571 | JvmtiGCMarker::~JvmtiGCMarker() { |
duke@435 | 2572 | // if there aren't any JVMTI environments then nothing to do |
duke@435 | 2573 | if (!JvmtiEnv::environments_might_exist()) { |
duke@435 | 2574 | return; |
duke@435 | 2575 | } |
duke@435 | 2576 | |
duke@435 | 2577 | // JVMTI notify gc finish |
duke@435 | 2578 | if (JvmtiExport::should_post_garbage_collection_finish()) { |
duke@435 | 2579 | JvmtiExport::post_garbage_collection_finish(); |
duke@435 | 2580 | } |
duke@435 | 2581 | |
duke@435 | 2582 | // we might have initially started out doing a scavenge of the young |
duke@435 | 2583 | // generation but could have ended up doing a "full" GC - check the |
duke@435 | 2584 | // GC count to see. |
duke@435 | 2585 | if (!_full) { |
ysr@777 | 2586 | _full = (_invocation_count != Universe::heap()->total_full_collections()); |
duke@435 | 2587 | } |
duke@435 | 2588 | |
duke@435 | 2589 | // Full collection probably means the perm generation has been GC'ed |
duke@435 | 2590 | // so we clear the breakpoint cache. |
duke@435 | 2591 | if (_full) { |
duke@435 | 2592 | JvmtiCurrentBreakpoints::gc_epilogue(); |
duke@435 | 2593 | } |
duke@435 | 2594 | |
duke@435 | 2595 | // Notify heap/object tagging support |
duke@435 | 2596 | JvmtiTagMap::gc_epilogue(_full); |
duke@435 | 2597 | } |
duke@435 | 2598 | #endif // JVMTI_KERNEL |