aoqi@0: /*
aoqi@0:  * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #include "precompiled.hpp"
aoqi@0: #include "classfile/systemDictionary.hpp"
aoqi@0: #include "code/nmethod.hpp"
aoqi@0: #include "code/pcDesc.hpp"
aoqi@0: #include "code/scopeDesc.hpp"
aoqi@0: #include "interpreter/interpreter.hpp"
aoqi@0: #include "jvmtifiles/jvmtiEnv.hpp"
aoqi@0: #include "memory/resourceArea.hpp"
aoqi@0: #include "oops/objArrayKlass.hpp"
aoqi@0: #include "oops/objArrayOop.hpp"
aoqi@0: #include "prims/jvmtiCodeBlobEvents.hpp"
aoqi@0: #include "prims/jvmtiEventController.hpp"
aoqi@0: #include "prims/jvmtiEventController.inline.hpp"
aoqi@0: #include "prims/jvmtiExport.hpp"
aoqi@0: #include "prims/jvmtiImpl.hpp"
aoqi@0: #include "prims/jvmtiManageCapabilities.hpp"
aoqi@0: #include "prims/jvmtiRawMonitor.hpp"
aoqi@0: #include "prims/jvmtiTagMap.hpp"
aoqi@0: #include "prims/jvmtiThreadState.inline.hpp"
aoqi@0: #include "prims/jvmtiRedefineClasses.hpp"
aoqi@0: #include "runtime/arguments.hpp"
aoqi@0: #include "runtime/handles.hpp"
aoqi@0: #include "runtime/interfaceSupport.hpp"
aoqi@0: #include "runtime/objectMonitor.hpp"
aoqi@0: #include "runtime/objectMonitor.inline.hpp"
aoqi@0: #include "runtime/thread.hpp"
aoqi@0: #include "runtime/vframe.hpp"
aoqi@0: #include "services/attachListener.hpp"
aoqi@0: #include "services/serviceUtil.hpp"
aoqi@0: #include "utilities/macros.hpp"
aoqi@0: #if INCLUDE_ALL_GCS
aoqi@0: #include "gc_implementation/parallelScavenge/psMarkSweep.hpp"
aoqi@0: #endif // INCLUDE_ALL_GCS
aoqi@0: 
aoqi@0: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
aoqi@0: 
aoqi@0: #ifdef JVMTI_TRACE
aoqi@0: #define EVT_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_SENT) != 0) { SafeResourceMark rm; tty->print_cr out; }
aoqi@0: #define EVT_TRIG_TRACE(evt,out) if ((JvmtiTrace::event_trace_flags(evt) & JvmtiTrace::SHOW_EVENT_TRIGGER) != 0) { SafeResourceMark rm; tty->print_cr out; }
aoqi@0: #else
aoqi@0: #define EVT_TRIG_TRACE(evt,out)
aoqi@0: #define EVT_TRACE(evt,out)
aoqi@0: #endif
aoqi@0: 
aoqi@0: ///////////////////////////////////////////////////////////////
aoqi@0: //
aoqi@0: // JvmtiEventTransition
aoqi@0: //
aoqi@0: // TO DO --
aoqi@0: //  more handle purging
aoqi@0: 
aoqi@0: // Use this for JavaThreads and state is  _thread_in_vm.
aoqi@0: class JvmtiJavaThreadEventTransition : StackObj {
aoqi@0: private:
aoqi@0:   ResourceMark _rm;
aoqi@0:   ThreadToNativeFromVM _transition;
aoqi@0:   HandleMark _hm;
aoqi@0: 
aoqi@0: public:
aoqi@0:   JvmtiJavaThreadEventTransition(JavaThread *thread) :
aoqi@0:     _rm(),
aoqi@0:     _transition(thread),
aoqi@0:     _hm(thread)  {};
aoqi@0: };
aoqi@0: 
aoqi@0: // For JavaThreads which are not in _thread_in_vm state
aoqi@0: // and other system threads use this.
aoqi@0: class JvmtiThreadEventTransition : StackObj {
aoqi@0: private:
aoqi@0:   ResourceMark _rm;
aoqi@0:   HandleMark _hm;
aoqi@0:   JavaThreadState _saved_state;
aoqi@0:   JavaThread *_jthread;
aoqi@0: 
aoqi@0: public:
aoqi@0:   JvmtiThreadEventTransition(Thread *thread) : _rm(), _hm() {
aoqi@0:     if (thread->is_Java_thread()) {
aoqi@0:        _jthread = (JavaThread *)thread;
aoqi@0:        _saved_state = _jthread->thread_state();
aoqi@0:        if (_saved_state == _thread_in_Java) {
aoqi@0:          ThreadStateTransition::transition_from_java(_jthread, _thread_in_native);
aoqi@0:        } else {
aoqi@0:          ThreadStateTransition::transition(_jthread, _saved_state, _thread_in_native);
aoqi@0:        }
aoqi@0:     } else {
aoqi@0:       _jthread = NULL;
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   ~JvmtiThreadEventTransition() {
aoqi@0:     if (_jthread != NULL)
aoqi@0:       ThreadStateTransition::transition_from_native(_jthread, _saved_state);
aoqi@0:   }
aoqi@0: };
aoqi@0: 
aoqi@0: 
aoqi@0: ///////////////////////////////////////////////////////////////
aoqi@0: //
aoqi@0: // JvmtiEventMark
aoqi@0: //
aoqi@0: 
aoqi@0: class JvmtiEventMark : public StackObj {
aoqi@0: private:
aoqi@0:   JavaThread *_thread;
aoqi@0:   JNIEnv* _jni_env;
aoqi@0:   bool _exception_detected;
aoqi@0:   bool _exception_caught;
aoqi@0: #if 0
aoqi@0:   JNIHandleBlock* _hblock;
aoqi@0: #endif
aoqi@0: 
aoqi@0: public:
aoqi@0:   JvmtiEventMark(JavaThread *thread) :  _thread(thread),
aoqi@0:                                          _jni_env(thread->jni_environment()) {
aoqi@0: #if 0
aoqi@0:     _hblock = thread->active_handles();
aoqi@0:     _hblock->clear_thoroughly(); // so we can be safe
aoqi@0: #else
aoqi@0:     // we want to use the code above - but that needs the JNIHandle changes - later...
aoqi@0:     // for now, steal JNI push local frame code
aoqi@0:     JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:     // we are before an event.
aoqi@0:     // Save current jvmti thread exception state.
aoqi@0:     if (state != NULL) {
aoqi@0:       _exception_detected = state->is_exception_detected();
aoqi@0:       _exception_caught = state->is_exception_caught();
aoqi@0:     } else {
aoqi@0:       _exception_detected = false;
aoqi@0:       _exception_caught = false;
aoqi@0:     }
aoqi@0: 
aoqi@0:     JNIHandleBlock* old_handles = thread->active_handles();
aoqi@0:     JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
aoqi@0:     assert(new_handles != NULL, "should not be NULL");
aoqi@0:     new_handles->set_pop_frame_link(old_handles);
aoqi@0:     thread->set_active_handles(new_handles);
aoqi@0: #endif
aoqi@0:     assert(thread == JavaThread::current(), "thread must be current!");
aoqi@0:     thread->frame_anchor()->make_walkable(thread);
aoqi@0:   };
aoqi@0: 
aoqi@0:   ~JvmtiEventMark() {
aoqi@0: #if 0
aoqi@0:     _hblock->clear(); // for consistency with future correct behavior
aoqi@0: #else
aoqi@0:     // we want to use the code above - but that needs the JNIHandle changes - later...
aoqi@0:     // for now, steal JNI pop local frame code
aoqi@0:     JNIHandleBlock* old_handles = _thread->active_handles();
aoqi@0:     JNIHandleBlock* new_handles = old_handles->pop_frame_link();
aoqi@0:     assert(new_handles != NULL, "should not be NULL");
aoqi@0:     _thread->set_active_handles(new_handles);
aoqi@0:     // Note that we set the pop_frame_link to NULL explicitly, otherwise
aoqi@0:     // the release_block call will release the blocks.
aoqi@0:     old_handles->set_pop_frame_link(NULL);
aoqi@0:     JNIHandleBlock::release_block(old_handles, _thread); // may block
aoqi@0: #endif
aoqi@0: 
aoqi@0:     JvmtiThreadState* state = _thread->jvmti_thread_state();
aoqi@0:     // we are continuing after an event.
aoqi@0:     if (state != NULL) {
aoqi@0:       // Restore the jvmti thread exception state.
aoqi@0:       if (_exception_detected) {
aoqi@0:         state->set_exception_detected();
aoqi@0:       }
aoqi@0:       if (_exception_caught) {
aoqi@0:         state->set_exception_caught();
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0: #if 0
aoqi@0:   jobject to_jobject(oop obj) { return obj == NULL? NULL : _hblock->allocate_handle_fast(obj); }
aoqi@0: #else
aoqi@0:   // we want to use the code above - but that needs the JNIHandle changes - later...
aoqi@0:   // for now, use regular make_local
aoqi@0:   jobject to_jobject(oop obj) { return JNIHandles::make_local(_thread,obj); }
aoqi@0: #endif
aoqi@0: 
aoqi@0:   jclass to_jclass(Klass* klass) { return (klass == NULL ? NULL : (jclass)to_jobject(klass->java_mirror())); }
aoqi@0: 
aoqi@0:   jmethodID to_jmethodID(methodHandle method) { return method->jmethod_id(); }
aoqi@0: 
aoqi@0:   JNIEnv* jni_env() { return _jni_env; }
aoqi@0: };
aoqi@0: 
aoqi@0: class JvmtiThreadEventMark : public JvmtiEventMark {
aoqi@0: private:
aoqi@0:   jthread _jt;
aoqi@0: 
aoqi@0: public:
aoqi@0:   JvmtiThreadEventMark(JavaThread *thread) :
aoqi@0:     JvmtiEventMark(thread) {
aoqi@0:     _jt = (jthread)(to_jobject(thread->threadObj()));
aoqi@0:   };
aoqi@0:  jthread jni_thread() { return _jt; }
aoqi@0: };
aoqi@0: 
aoqi@0: class JvmtiClassEventMark : public JvmtiThreadEventMark {
aoqi@0: private:
aoqi@0:   jclass _jc;
aoqi@0: 
aoqi@0: public:
aoqi@0:   JvmtiClassEventMark(JavaThread *thread, Klass* klass) :
aoqi@0:     JvmtiThreadEventMark(thread) {
aoqi@0:     _jc = to_jclass(klass);
aoqi@0:   };
aoqi@0:   jclass jni_class() { return _jc; }
aoqi@0: };
aoqi@0: 
aoqi@0: class JvmtiMethodEventMark : public JvmtiThreadEventMark {
aoqi@0: private:
aoqi@0:   jmethodID _mid;
aoqi@0: 
aoqi@0: public:
aoqi@0:   JvmtiMethodEventMark(JavaThread *thread, methodHandle method) :
aoqi@0:     JvmtiThreadEventMark(thread),
aoqi@0:     _mid(to_jmethodID(method)) {};
aoqi@0:   jmethodID jni_methodID() { return _mid; }
aoqi@0: };
aoqi@0: 
aoqi@0: class JvmtiLocationEventMark : public JvmtiMethodEventMark {
aoqi@0: private:
aoqi@0:   jlocation _loc;
aoqi@0: 
aoqi@0: public:
aoqi@0:   JvmtiLocationEventMark(JavaThread *thread, methodHandle method, address location) :
aoqi@0:     JvmtiMethodEventMark(thread, method),
aoqi@0:     _loc(location - method->code_base()) {};
aoqi@0:   jlocation location() { return _loc; }
aoqi@0: };
aoqi@0: 
aoqi@0: class JvmtiExceptionEventMark : public JvmtiLocationEventMark {
aoqi@0: private:
aoqi@0:   jobject _exc;
aoqi@0: 
aoqi@0: public:
aoqi@0:   JvmtiExceptionEventMark(JavaThread *thread, methodHandle method, address location, Handle exception) :
aoqi@0:     JvmtiLocationEventMark(thread, method, location),
aoqi@0:     _exc(to_jobject(exception())) {};
aoqi@0:   jobject exception() { return _exc; }
aoqi@0: };
aoqi@0: 
aoqi@0: class JvmtiClassFileLoadEventMark : public JvmtiThreadEventMark {
aoqi@0: private:
aoqi@0:   const char *_class_name;
aoqi@0:   jobject _jloader;
aoqi@0:   jobject _protection_domain;
aoqi@0:   jclass  _class_being_redefined;
aoqi@0: 
aoqi@0: public:
aoqi@0:   JvmtiClassFileLoadEventMark(JavaThread *thread, Symbol* name,
aoqi@0:      Handle class_loader, Handle prot_domain, KlassHandle *class_being_redefined) : JvmtiThreadEventMark(thread) {
aoqi@0:       _class_name = name != NULL? name->as_utf8() : NULL;
aoqi@0:       _jloader = (jobject)to_jobject(class_loader());
aoqi@0:       _protection_domain = (jobject)to_jobject(prot_domain());
aoqi@0:       if (class_being_redefined == NULL) {
aoqi@0:         _class_being_redefined = NULL;
aoqi@0:       } else {
aoqi@0:         _class_being_redefined = (jclass)to_jclass((*class_being_redefined)());
aoqi@0:       }
aoqi@0:   };
aoqi@0:   const char *class_name() {
aoqi@0:     return _class_name;
aoqi@0:   }
aoqi@0:   jobject jloader() {
aoqi@0:     return _jloader;
aoqi@0:   }
aoqi@0:   jobject protection_domain() {
aoqi@0:     return _protection_domain;
aoqi@0:   }
aoqi@0:   jclass class_being_redefined() {
aoqi@0:     return _class_being_redefined;
aoqi@0:   }
aoqi@0: };
aoqi@0: 
aoqi@0: //////////////////////////////////////////////////////////////////////////////
aoqi@0: 
aoqi@0: int               JvmtiExport::_field_access_count                        = 0;
aoqi@0: int               JvmtiExport::_field_modification_count                  = 0;
aoqi@0: 
aoqi@0: bool              JvmtiExport::_can_access_local_variables                = false;
aoqi@0: bool              JvmtiExport::_can_hotswap_or_post_breakpoint            = false;
aoqi@0: bool              JvmtiExport::_can_modify_any_class                      = false;
aoqi@0: bool              JvmtiExport::_can_walk_any_space                        = false;
aoqi@0: 
aoqi@0: bool              JvmtiExport::_has_redefined_a_class                     = false;
aoqi@0: bool              JvmtiExport::_all_dependencies_are_recorded             = false;
aoqi@0: 
aoqi@0: //
aoqi@0: // field access management
aoqi@0: //
aoqi@0: 
aoqi@0: // interpreter generator needs the address of the counter
aoqi@0: address JvmtiExport::get_field_access_count_addr() {
aoqi@0:   // We don't grab a lock because we don't want to
aoqi@0:   // serialize field access between all threads. This means that a
aoqi@0:   // thread on another processor can see the wrong count value and
aoqi@0:   // may either miss making a needed call into post_field_access()
aoqi@0:   // or will make an unneeded call into post_field_access(). We pay
aoqi@0:   // this price to avoid slowing down the VM when we aren't watching
aoqi@0:   // field accesses.
aoqi@0:   // Other access/mutation safe by virtue of being in VM state.
aoqi@0:   return (address)(&_field_access_count);
aoqi@0: }
aoqi@0: 
aoqi@0: //
aoqi@0: // field modification management
aoqi@0: //
aoqi@0: 
aoqi@0: // interpreter generator needs the address of the counter
aoqi@0: address JvmtiExport::get_field_modification_count_addr() {
aoqi@0:   // We don't grab a lock because we don't
aoqi@0:   // want to serialize field modification between all threads. This
aoqi@0:   // means that a thread on another processor can see the wrong
aoqi@0:   // count value and may either miss making a needed call into
aoqi@0:   // post_field_modification() or will make an unneeded call into
aoqi@0:   // post_field_modification(). We pay this price to avoid slowing
aoqi@0:   // down the VM when we aren't watching field modifications.
aoqi@0:   // Other access/mutation safe by virtue of being in VM state.
aoqi@0:   return (address)(&_field_modification_count);
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: ///////////////////////////////////////////////////////////////
aoqi@0: // Functions needed by java.lang.instrument for starting up javaagent.
aoqi@0: ///////////////////////////////////////////////////////////////
aoqi@0: 
aoqi@0: jint
aoqi@0: JvmtiExport::get_jvmti_interface(JavaVM *jvm, void **penv, jint version) {
aoqi@0:   // The JVMTI_VERSION_INTERFACE_JVMTI part of the version number
aoqi@0:   // has already been validated in JNI GetEnv().
aoqi@0:   int major, minor, micro;
aoqi@0: 
aoqi@0:   // micro version doesn't matter here (yet?)
aoqi@0:   decode_version_values(version, &major, &minor, &micro);
aoqi@0:   switch (major) {
aoqi@0:     case 1:
aoqi@0:       switch (minor) {
aoqi@0:         case 0:  // version 1.0.<micro> is recognized
aoqi@0:         case 1:  // version 1.1.<micro> is recognized
aoqi@0:         case 2:  // version 1.2.<micro> is recognized
aoqi@0:           break;
aoqi@0: 
aoqi@0:         default:
aoqi@0:           return JNI_EVERSION;  // unsupported minor version number
aoqi@0:       }
aoqi@0:       break;
aoqi@0:     default:
aoqi@0:       return JNI_EVERSION;  // unsupported major version number
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (JvmtiEnv::get_phase() == JVMTI_PHASE_LIVE) {
aoqi@0:     JavaThread* current_thread = (JavaThread*) ThreadLocalStorage::thread();
aoqi@0:     // transition code: native to VM
aoqi@0:     ThreadInVMfromNative __tiv(current_thread);
aoqi@0:     VM_ENTRY_BASE(jvmtiEnv*, JvmtiExport::get_jvmti_interface, current_thread)
aoqi@0:     debug_only(VMNativeEntryWrapper __vew;)
aoqi@0: 
aoqi@0:     JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version);
aoqi@0:     *penv = jvmti_env->jvmti_external();  // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv*
aoqi@0:     return JNI_OK;
aoqi@0: 
aoqi@0:   } else if (JvmtiEnv::get_phase() == JVMTI_PHASE_ONLOAD) {
aoqi@0:     // not live, no thread to transition
aoqi@0:     JvmtiEnv *jvmti_env = JvmtiEnv::create_a_jvmti(version);
aoqi@0:     *penv = jvmti_env->jvmti_external();  // actual type is jvmtiEnv* -- not to be confused with JvmtiEnv*
aoqi@0:     return JNI_OK;
aoqi@0: 
aoqi@0:   } else {
aoqi@0:     // Called at the wrong time
aoqi@0:     *penv = NULL;
aoqi@0:     return JNI_EDETACHED;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void
aoqi@0: JvmtiExport::decode_version_values(jint version, int * major, int * minor,
aoqi@0:                                    int * micro) {
aoqi@0:   *major = (version & JVMTI_VERSION_MASK_MAJOR) >> JVMTI_VERSION_SHIFT_MAJOR;
aoqi@0:   *minor = (version & JVMTI_VERSION_MASK_MINOR) >> JVMTI_VERSION_SHIFT_MINOR;
aoqi@0:   *micro = (version & JVMTI_VERSION_MASK_MICRO) >> JVMTI_VERSION_SHIFT_MICRO;
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::enter_primordial_phase() {
aoqi@0:   JvmtiEnvBase::set_phase(JVMTI_PHASE_PRIMORDIAL);
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::enter_start_phase() {
aoqi@0:   JvmtiManageCapabilities::recompute_always_capabilities();
aoqi@0:   JvmtiEnvBase::set_phase(JVMTI_PHASE_START);
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::enter_onload_phase() {
aoqi@0:   JvmtiEnvBase::set_phase(JVMTI_PHASE_ONLOAD);
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::enter_live_phase() {
aoqi@0:   JvmtiEnvBase::set_phase(JVMTI_PHASE_LIVE);
aoqi@0: }
aoqi@0: 
aoqi@0: //
aoqi@0: // JVMTI events that the VM posts to the debugger and also startup agent
aoqi@0: // and call the agent's premain() for java.lang.instrument.
aoqi@0: //
aoqi@0: 
aoqi@0: void JvmtiExport::post_vm_start() {
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Trg VM start event triggered" ));
aoqi@0: 
aoqi@0:   // can now enable some events
aoqi@0:   JvmtiEventController::vm_start();
aoqi@0: 
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_VM_START)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_VM_START, ("JVMTI Evt VM start event sent" ));
aoqi@0: 
aoqi@0:       JavaThread *thread  = JavaThread::current();
aoqi@0:       JvmtiThreadEventMark jem(thread);
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventVMStart callback = env->callbacks()->VMStart;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void JvmtiExport::post_vm_initialized() {
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Trg VM init event triggered" ));
aoqi@0: 
aoqi@0:   // can now enable events
aoqi@0:   JvmtiEventController::vm_init();
aoqi@0: 
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_VM_INIT)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_VM_INIT, ("JVMTI Evt VM init event sent" ));
aoqi@0: 
aoqi@0:       JavaThread *thread  = JavaThread::current();
aoqi@0:       JvmtiThreadEventMark jem(thread);
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventVMInit callback = env->callbacks()->VMInit;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void JvmtiExport::post_vm_death() {
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Trg VM death event triggered" ));
aoqi@0: 
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_VM_DEATH)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_VM_DEATH, ("JVMTI Evt VM death event sent" ));
aoqi@0: 
aoqi@0:       JavaThread *thread  = JavaThread::current();
aoqi@0:       JvmtiEventMark jem(thread);
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventVMDeath callback = env->callbacks()->VMDeath;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   JvmtiEnvBase::set_phase(JVMTI_PHASE_DEAD);
aoqi@0:   JvmtiEventController::vm_death();
aoqi@0: }
aoqi@0: 
aoqi@0: char**
aoqi@0: JvmtiExport::get_all_native_method_prefixes(int* count_ptr) {
aoqi@0:   // Have to grab JVMTI thread state lock to be sure environment doesn't
aoqi@0:   // go away while we iterate them.  No locks during VM bring-up.
aoqi@0:   if (Threads::number_of_threads() == 0 || SafepointSynchronize::is_at_safepoint()) {
aoqi@0:     return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr);
aoqi@0:   } else {
aoqi@0:     MutexLocker mu(JvmtiThreadState_lock);
aoqi@0:     return JvmtiEnvBase::get_all_native_method_prefixes(count_ptr);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: class JvmtiClassFileLoadHookPoster : public StackObj {
aoqi@0:  private:
aoqi@0:   Symbol*            _h_name;
aoqi@0:   Handle               _class_loader;
aoqi@0:   Handle               _h_protection_domain;
aoqi@0:   unsigned char **     _data_ptr;
aoqi@0:   unsigned char **     _end_ptr;
aoqi@0:   JavaThread *         _thread;
aoqi@0:   jint                 _curr_len;
aoqi@0:   unsigned char *      _curr_data;
aoqi@0:   JvmtiEnv *           _curr_env;
aoqi@0:   JvmtiCachedClassFileData ** _cached_class_file_ptr;
aoqi@0:   JvmtiThreadState *   _state;
aoqi@0:   KlassHandle *        _h_class_being_redefined;
aoqi@0:   JvmtiClassLoadKind   _load_kind;
aoqi@0: 
aoqi@0:  public:
aoqi@0:   inline JvmtiClassFileLoadHookPoster(Symbol* h_name, Handle class_loader,
aoqi@0:                                       Handle h_protection_domain,
aoqi@0:                                       unsigned char **data_ptr, unsigned char **end_ptr,
aoqi@0:                                       JvmtiCachedClassFileData **cache_ptr) {
aoqi@0:     _h_name = h_name;
aoqi@0:     _class_loader = class_loader;
aoqi@0:     _h_protection_domain = h_protection_domain;
aoqi@0:     _data_ptr = data_ptr;
aoqi@0:     _end_ptr = end_ptr;
aoqi@0:     _thread = JavaThread::current();
aoqi@0:     _curr_len = *end_ptr - *data_ptr;
aoqi@0:     _curr_data = *data_ptr;
aoqi@0:     _curr_env = NULL;
aoqi@0:     _cached_class_file_ptr = cache_ptr;
aoqi@0: 
aoqi@0:     _state = _thread->jvmti_thread_state();
aoqi@0:     if (_state != NULL) {
aoqi@0:       _h_class_being_redefined = _state->get_class_being_redefined();
aoqi@0:       _load_kind = _state->get_class_load_kind();
aoqi@0:       // Clear class_being_redefined flag here. The action
aoqi@0:       // from agent handler could generate a new class file load
aoqi@0:       // hook event and if it is not cleared the new event generated
aoqi@0:       // from regular class file load could have this stale redefined
aoqi@0:       // class handle info.
aoqi@0:       _state->clear_class_being_redefined();
aoqi@0:     } else {
aoqi@0:       // redefine and retransform will always set the thread state
aoqi@0:       _h_class_being_redefined = (KlassHandle *) NULL;
aoqi@0:       _load_kind = jvmti_class_load_kind_load;
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   void post() {
aoqi@0: //    EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK,
aoqi@0: //                   ("JVMTI [%s] class file load hook event triggered",
aoqi@0: //                    JvmtiTrace::safe_get_thread_name(_thread)));
aoqi@0:     post_all_envs();
aoqi@0:     copy_modified_data();
aoqi@0:   }
aoqi@0: 
aoqi@0:  private:
aoqi@0:   void post_all_envs() {
aoqi@0:     if (_load_kind != jvmti_class_load_kind_retransform) {
aoqi@0:       // for class load and redefine,
aoqi@0:       // call the non-retransformable agents
aoqi@0:       JvmtiEnvIterator it;
aoqi@0:       for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:         if (!env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) {
aoqi@0:           // non-retransformable agents cannot retransform back,
aoqi@0:           // so no need to cache the original class file bytes
aoqi@0:           post_to_env(env, false);
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:     JvmtiEnvIterator it;
aoqi@0:     for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:       // retransformable agents get all events
aoqi@0:       if (env->is_retransformable() && env->is_enabled(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK)) {
aoqi@0:         // retransformable agents need to cache the original class file
aoqi@0:         // bytes if changes are made via the ClassFileLoadHook
aoqi@0:         post_to_env(env, true);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   void post_to_env(JvmtiEnv* env, bool caching_needed) {
aoqi@0:     unsigned char *new_data = NULL;
aoqi@0:     jint new_len = 0;
aoqi@0: //    EVT_TRACE(JVMTI_EVENT_CLASS_FILE_LOAD_HOOK,
aoqi@0: //     ("JVMTI [%s] class file load hook event sent %s  data_ptr = %d, data_len = %d",
aoqi@0: //               JvmtiTrace::safe_get_thread_name(_thread),
aoqi@0: //               _h_name == NULL ? "NULL" : _h_name->as_utf8(),
aoqi@0: //               _curr_data, _curr_len ));
aoqi@0:     JvmtiClassFileLoadEventMark jem(_thread, _h_name, _class_loader,
aoqi@0:                                     _h_protection_domain,
aoqi@0:                                     _h_class_being_redefined);
aoqi@0:     JvmtiJavaThreadEventTransition jet(_thread);
aoqi@0:     JNIEnv* jni_env =  (JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL)?
aoqi@0:                                                         NULL : jem.jni_env();
aoqi@0:     jvmtiEventClassFileLoadHook callback = env->callbacks()->ClassFileLoadHook;
aoqi@0:     if (callback != NULL) {
aoqi@0:       (*callback)(env->jvmti_external(), jni_env,
aoqi@0:                   jem.class_being_redefined(),
aoqi@0:                   jem.jloader(), jem.class_name(),
aoqi@0:                   jem.protection_domain(),
aoqi@0:                   _curr_len, _curr_data,
aoqi@0:                   &new_len, &new_data);
aoqi@0:     }
aoqi@0:     if (new_data != NULL) {
aoqi@0:       // this agent has modified class data.
aoqi@0:       if (caching_needed && *_cached_class_file_ptr == NULL) {
aoqi@0:         // data has been changed by the new retransformable agent
aoqi@0:         // and it hasn't already been cached, cache it
aoqi@0:         JvmtiCachedClassFileData *p;
aoqi@0:         p = (JvmtiCachedClassFileData *)os::malloc(
aoqi@0:           offset_of(JvmtiCachedClassFileData, data) + _curr_len, mtInternal);
aoqi@0:         if (p == NULL) {
aoqi@0:           vm_exit_out_of_memory(offset_of(JvmtiCachedClassFileData, data) + _curr_len,
aoqi@0:             OOM_MALLOC_ERROR,
aoqi@0:             "unable to allocate cached copy of original class bytes");
aoqi@0:         }
aoqi@0:         p->length = _curr_len;
aoqi@0:         memcpy(p->data, _curr_data, _curr_len);
aoqi@0:         *_cached_class_file_ptr = p;
aoqi@0:       }
aoqi@0: 
aoqi@0:       if (_curr_data != *_data_ptr) {
aoqi@0:         // curr_data is previous agent modified class data.
aoqi@0:         // And this has been changed by the new agent so
aoqi@0:         // we can delete it now.
aoqi@0:         _curr_env->Deallocate(_curr_data);
aoqi@0:       }
aoqi@0: 
aoqi@0:       // Class file data has changed by the current agent.
aoqi@0:       _curr_data = new_data;
aoqi@0:       _curr_len = new_len;
aoqi@0:       // Save the current agent env we need this to deallocate the
aoqi@0:       // memory allocated by this agent.
aoqi@0:       _curr_env = env;
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   void copy_modified_data() {
aoqi@0:     // if one of the agent has modified class file data.
aoqi@0:     // Copy modified class data to new resources array.
aoqi@0:     if (_curr_data != *_data_ptr) {
aoqi@0:       *_data_ptr = NEW_RESOURCE_ARRAY(u1, _curr_len);
aoqi@0:       memcpy(*_data_ptr, _curr_data, _curr_len);
aoqi@0:       *_end_ptr = *_data_ptr + _curr_len;
aoqi@0:       _curr_env->Deallocate(_curr_data);
aoqi@0:     }
aoqi@0:   }
aoqi@0: };
aoqi@0: 
aoqi@0: bool JvmtiExport::_should_post_class_file_load_hook = false;
aoqi@0: 
aoqi@0: // this entry is for class file load hook on class load, redefine and retransform
aoqi@0: void JvmtiExport::post_class_file_load_hook(Symbol* h_name,
aoqi@0:                                             Handle class_loader,
aoqi@0:                                             Handle h_protection_domain,
aoqi@0:                                             unsigned char **data_ptr,
aoqi@0:                                             unsigned char **end_ptr,
aoqi@0:                                             JvmtiCachedClassFileData **cache_ptr) {
aoqi@0:   JvmtiClassFileLoadHookPoster poster(h_name, class_loader,
aoqi@0:                                       h_protection_domain,
aoqi@0:                                       data_ptr, end_ptr,
aoqi@0:                                       cache_ptr);
aoqi@0:   poster.post();
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::report_unsupported(bool on) {
aoqi@0:   // If any JVMTI service is turned on, we need to exit before native code
aoqi@0:   // tries to access nonexistant services.
aoqi@0:   if (on) {
aoqi@0:     vm_exit_during_initialization("Java Kernel does not support JVMTI.");
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: static inline Klass* oop_to_klass(oop obj) {
aoqi@0:   Klass* k = obj->klass();
aoqi@0: 
aoqi@0:   // if the object is a java.lang.Class then return the java mirror
aoqi@0:   if (k == SystemDictionary::Class_klass()) {
aoqi@0:     if (!java_lang_Class::is_primitive(obj)) {
aoqi@0:       k = java_lang_Class::as_Klass(obj);
aoqi@0:       assert(k != NULL, "class for non-primitive mirror must exist");
aoqi@0:     }
aoqi@0:   }
aoqi@0:   return k;
aoqi@0: }
aoqi@0: 
aoqi@0: class JvmtiVMObjectAllocEventMark : public JvmtiClassEventMark  {
aoqi@0:  private:
aoqi@0:    jobject _jobj;
aoqi@0:    jlong    _size;
aoqi@0:  public:
aoqi@0:    JvmtiVMObjectAllocEventMark(JavaThread *thread, oop obj) : JvmtiClassEventMark(thread, oop_to_klass(obj)) {
aoqi@0:      _jobj = (jobject)to_jobject(obj);
aoqi@0:      _size = obj->size() * wordSize;
aoqi@0:    };
aoqi@0:    jobject jni_jobject() { return _jobj; }
aoqi@0:    jlong size() { return _size; }
aoqi@0: };
aoqi@0: 
aoqi@0: class JvmtiCompiledMethodLoadEventMark : public JvmtiMethodEventMark {
aoqi@0:  private:
aoqi@0:   jint _code_size;
aoqi@0:   const void *_code_data;
aoqi@0:   jint _map_length;
aoqi@0:   jvmtiAddrLocationMap *_map;
aoqi@0:   const void *_compile_info;
aoqi@0:  public:
aoqi@0:   JvmtiCompiledMethodLoadEventMark(JavaThread *thread, nmethod *nm, void* compile_info_ptr = NULL)
aoqi@0:           : JvmtiMethodEventMark(thread,methodHandle(thread, nm->method())) {
aoqi@0:     _code_data = nm->insts_begin();
aoqi@0:     _code_size = nm->insts_size();
aoqi@0:     _compile_info = compile_info_ptr; // Set void pointer of compiledMethodLoad Event. Default value is NULL.
aoqi@0:     JvmtiCodeBlobEvents::build_jvmti_addr_location_map(nm, &_map, &_map_length);
aoqi@0:   }
aoqi@0:   ~JvmtiCompiledMethodLoadEventMark() {
aoqi@0:      FREE_C_HEAP_ARRAY(jvmtiAddrLocationMap, _map, mtInternal);
aoqi@0:   }
aoqi@0: 
aoqi@0:   jint code_size() { return _code_size; }
aoqi@0:   const void *code_data() { return _code_data; }
aoqi@0:   jint map_length() { return _map_length; }
aoqi@0:   const jvmtiAddrLocationMap* map() { return _map; }
aoqi@0:   const void *compile_info() { return _compile_info; }
aoqi@0: };
aoqi@0: 
aoqi@0: 
aoqi@0: 
aoqi@0: class JvmtiMonitorEventMark : public JvmtiThreadEventMark {
aoqi@0: private:
aoqi@0:   jobject _jobj;
aoqi@0: public:
aoqi@0:   JvmtiMonitorEventMark(JavaThread *thread, oop object)
aoqi@0:           : JvmtiThreadEventMark(thread){
aoqi@0:      _jobj = to_jobject(object);
aoqi@0:   }
aoqi@0:   jobject jni_object() { return _jobj; }
aoqi@0: };
aoqi@0: 
aoqi@0: ///////////////////////////////////////////////////////////////
aoqi@0: //
aoqi@0: // pending CompiledMethodUnload support
aoqi@0: //
aoqi@0: 
aoqi@0: void JvmtiExport::post_compiled_method_unload(
aoqi@0:        jmethodID method, const void *code_begin) {
aoqi@0:   JavaThread* thread = JavaThread::current();
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD,
aoqi@0:                  ("JVMTI [%s] method compile unload event triggered",
aoqi@0:                   JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   // post the event for each environment that has this event enabled.
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_UNLOAD)) {
aoqi@0: 
aoqi@0:       EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_UNLOAD,
aoqi@0:                 ("JVMTI [%s] class compile method unload event sent jmethodID " PTR_FORMAT,
aoqi@0:                  JvmtiTrace::safe_get_thread_name(thread), method));
aoqi@0: 
aoqi@0:       ResourceMark rm(thread);
aoqi@0: 
aoqi@0:       JvmtiEventMark jem(thread);
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventCompiledMethodUnload callback = env->callbacks()->CompiledMethodUnload;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), method, code_begin);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: ///////////////////////////////////////////////////////////////
aoqi@0: //
aoqi@0: // JvmtiExport
aoqi@0: //
aoqi@0: 
aoqi@0: void JvmtiExport::post_raw_breakpoint(JavaThread *thread, Method* method, address location) {
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0: 
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Trg Breakpoint triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_BREAKPOINT);
aoqi@0:     if (!ets->breakpoint_posted() && ets->is_enabled(JVMTI_EVENT_BREAKPOINT)) {
aoqi@0:       ThreadState old_os_state = thread->osthread()->get_state();
aoqi@0:       thread->osthread()->set_state(BREAKPOINTED);
aoqi@0:       EVT_TRACE(JVMTI_EVENT_BREAKPOINT, ("JVMTI [%s] Evt Breakpoint sent %s.%s @ %d",
aoqi@0:                      JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(),
aoqi@0:                      location - mh()->code_base() ));
aoqi@0: 
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiLocationEventMark jem(thread, mh, location);
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventBreakpoint callback = env->callbacks()->Breakpoint;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                     jem.jni_methodID(), jem.location());
aoqi@0:       }
aoqi@0: 
aoqi@0:       ets->set_breakpoint_posted();
aoqi@0:       thread->osthread()->set_state(old_os_state);
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: //////////////////////////////////////////////////////////////////////////////
aoqi@0: 
aoqi@0: bool              JvmtiExport::_can_get_source_debug_extension            = false;
aoqi@0: bool              JvmtiExport::_can_maintain_original_method_order        = false;
aoqi@0: bool              JvmtiExport::_can_post_interpreter_events               = false;
aoqi@0: bool              JvmtiExport::_can_post_on_exceptions                    = false;
aoqi@0: bool              JvmtiExport::_can_post_breakpoint                       = false;
aoqi@0: bool              JvmtiExport::_can_post_field_access                     = false;
aoqi@0: bool              JvmtiExport::_can_post_field_modification               = false;
aoqi@0: bool              JvmtiExport::_can_post_method_entry                     = false;
aoqi@0: bool              JvmtiExport::_can_post_method_exit                      = false;
aoqi@0: bool              JvmtiExport::_can_pop_frame                             = false;
aoqi@0: bool              JvmtiExport::_can_force_early_return                    = false;
aoqi@0: 
aoqi@0: bool              JvmtiExport::_should_post_single_step                   = false;
aoqi@0: bool              JvmtiExport::_should_post_field_access                  = false;
aoqi@0: bool              JvmtiExport::_should_post_field_modification            = false;
aoqi@0: bool              JvmtiExport::_should_post_class_load                    = false;
aoqi@0: bool              JvmtiExport::_should_post_class_prepare                 = false;
aoqi@0: bool              JvmtiExport::_should_post_class_unload                  = false;
aoqi@0: bool              JvmtiExport::_should_post_thread_life                   = false;
aoqi@0: bool              JvmtiExport::_should_clean_up_heap_objects              = false;
aoqi@0: bool              JvmtiExport::_should_post_native_method_bind            = false;
aoqi@0: bool              JvmtiExport::_should_post_dynamic_code_generated        = false;
aoqi@0: bool              JvmtiExport::_should_post_data_dump                     = false;
aoqi@0: bool              JvmtiExport::_should_post_compiled_method_load          = false;
aoqi@0: bool              JvmtiExport::_should_post_compiled_method_unload        = false;
aoqi@0: bool              JvmtiExport::_should_post_monitor_contended_enter       = false;
aoqi@0: bool              JvmtiExport::_should_post_monitor_contended_entered     = false;
aoqi@0: bool              JvmtiExport::_should_post_monitor_wait                  = false;
aoqi@0: bool              JvmtiExport::_should_post_monitor_waited                = false;
aoqi@0: bool              JvmtiExport::_should_post_garbage_collection_start      = false;
aoqi@0: bool              JvmtiExport::_should_post_garbage_collection_finish     = false;
aoqi@0: bool              JvmtiExport::_should_post_object_free                   = false;
aoqi@0: bool              JvmtiExport::_should_post_resource_exhausted            = false;
aoqi@0: bool              JvmtiExport::_should_post_vm_object_alloc               = false;
aoqi@0: bool              JvmtiExport::_should_post_on_exceptions                 = false;
aoqi@0: 
aoqi@0: ////////////////////////////////////////////////////////////////////////////////////////////////
aoqi@0: 
aoqi@0: 
aoqi@0: //
aoqi@0: // JVMTI single step management
aoqi@0: //
aoqi@0: void JvmtiExport::at_single_stepping_point(JavaThread *thread, Method* method, address location) {
aoqi@0:   assert(JvmtiExport::should_post_single_step(), "must be single stepping");
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0: 
aoqi@0:   // update information about current location and post a step event
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Trg Single Step triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   if (!state->hide_single_stepping()) {
aoqi@0:     if (state->is_pending_step_for_popframe()) {
aoqi@0:       state->process_pending_step_for_popframe();
aoqi@0:     }
aoqi@0:     if (state->is_pending_step_for_earlyret()) {
aoqi@0:       state->process_pending_step_for_earlyret();
aoqi@0:     }
aoqi@0:     JvmtiExport::post_single_step(thread, mh(), location);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void JvmtiExport::expose_single_stepping(JavaThread *thread) {
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state != NULL) {
aoqi@0:     state->clear_hide_single_stepping();
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: bool JvmtiExport::hide_single_stepping(JavaThread *thread) {
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state != NULL && state->is_enabled(JVMTI_EVENT_SINGLE_STEP)) {
aoqi@0:     state->set_hide_single_stepping();
aoqi@0:     return true;
aoqi@0:   } else {
aoqi@0:     return false;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_class_load(JavaThread *thread, Klass* klass) {
aoqi@0:   HandleMark hm(thread);
aoqi@0:   KlassHandle kh(thread, klass);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Trg Class Load triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   JvmtiThreadState* state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     if (ets->is_enabled(JVMTI_EVENT_CLASS_LOAD)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_CLASS_LOAD, ("JVMTI [%s] Evt Class Load sent %s",
aoqi@0:                                          JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                                          kh()==NULL? "NULL" : kh()->external_name() ));
aoqi@0: 
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiClassEventMark jem(thread, kh());
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventClassLoad callback = env->callbacks()->ClassLoad;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void JvmtiExport::post_class_prepare(JavaThread *thread, Klass* klass) {
aoqi@0:   HandleMark hm(thread);
aoqi@0:   KlassHandle kh(thread, klass);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Trg Class Prepare triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   JvmtiThreadState* state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     if (ets->is_enabled(JVMTI_EVENT_CLASS_PREPARE)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_CLASS_PREPARE, ("JVMTI [%s] Evt Class Prepare sent %s",
aoqi@0:                                             JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                                             kh()==NULL? "NULL" : kh()->external_name() ));
aoqi@0: 
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiClassEventMark jem(thread, kh());
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventClassPrepare callback = env->callbacks()->ClassPrepare;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_class());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_class_unload(Klass* klass) {
aoqi@0:   Thread *thread = Thread::current();
aoqi@0:   HandleMark hm(thread);
aoqi@0:   KlassHandle kh(thread, klass);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Trg Class Unload triggered" ));
aoqi@0:   if (JvmtiEventController::is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) {
aoqi@0:     assert(thread->is_VM_thread(), "wrong thread");
aoqi@0: 
aoqi@0:     // get JavaThread for whom we are proxy
aoqi@0:     JavaThread *real_thread =
aoqi@0:         (JavaThread *)((VMThread *)thread)->vm_operation()->calling_thread();
aoqi@0: 
aoqi@0:     JvmtiEnvIterator it;
aoqi@0:     for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:       if (env->is_enabled((jvmtiEvent)EXT_EVENT_CLASS_UNLOAD)) {
aoqi@0:         EVT_TRACE(EXT_EVENT_CLASS_UNLOAD, ("JVMTI [?] Evt Class Unload sent %s",
aoqi@0:                   kh()==NULL? "NULL" : kh()->external_name() ));
aoqi@0: 
aoqi@0:         // do everything manually, since this is a proxy - needs special care
aoqi@0:         JNIEnv* jni_env = real_thread->jni_environment();
aoqi@0:         jthread jt = (jthread)JNIHandles::make_local(real_thread, real_thread->threadObj());
aoqi@0:         jclass jk = (jclass)JNIHandles::make_local(real_thread, kh()->java_mirror());
aoqi@0: 
aoqi@0:         // Before we call the JVMTI agent, we have to set the state in the
aoqi@0:         // thread for which we are proxying.
aoqi@0:         JavaThreadState prev_state = real_thread->thread_state();
aoqi@0:         assert(prev_state == _thread_blocked, "JavaThread should be at safepoint");
aoqi@0:         real_thread->set_thread_state(_thread_in_native);
aoqi@0: 
aoqi@0:         jvmtiExtensionEvent callback = env->ext_callbacks()->ClassUnload;
aoqi@0:         if (callback != NULL) {
aoqi@0:           (*callback)(env->jvmti_external(), jni_env, jt, jk);
aoqi@0:         }
aoqi@0: 
aoqi@0:         assert(real_thread->thread_state() == _thread_in_native,
aoqi@0:                "JavaThread should be in native");
aoqi@0:         real_thread->set_thread_state(prev_state);
aoqi@0: 
aoqi@0:         JNIHandles::destroy_local(jk);
aoqi@0:         JNIHandles::destroy_local(jt);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void JvmtiExport::post_thread_start(JavaThread *thread) {
aoqi@0:   assert(thread->thread_state() == _thread_in_vm, "must be in vm state");
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Trg Thread Start event triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   // do JVMTI thread initialization (if needed)
aoqi@0:   JvmtiEventController::thread_started(thread);
aoqi@0: 
aoqi@0:   // Do not post thread start event for hidden java thread.
aoqi@0:   if (JvmtiEventController::is_enabled(JVMTI_EVENT_THREAD_START) &&
aoqi@0:       !thread->is_hidden_from_external_view()) {
aoqi@0:     JvmtiEnvIterator it;
aoqi@0:     for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:       if (env->is_enabled(JVMTI_EVENT_THREAD_START)) {
aoqi@0:         EVT_TRACE(JVMTI_EVENT_THREAD_START, ("JVMTI [%s] Evt Thread Start event sent",
aoqi@0:                      JvmtiTrace::safe_get_thread_name(thread) ));
aoqi@0: 
aoqi@0:         JvmtiThreadEventMark jem(thread);
aoqi@0:         JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:         jvmtiEventThreadStart callback = env->callbacks()->ThreadStart;
aoqi@0:         if (callback != NULL) {
aoqi@0:           (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread());
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void JvmtiExport::post_thread_end(JavaThread *thread) {
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Trg Thread End event triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Do not post thread end event for hidden java thread.
aoqi@0:   if (state->is_enabled(JVMTI_EVENT_THREAD_END) &&
aoqi@0:       !thread->is_hidden_from_external_view()) {
aoqi@0: 
aoqi@0:     JvmtiEnvThreadStateIterator it(state);
aoqi@0:     for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:       if (ets->is_enabled(JVMTI_EVENT_THREAD_END)) {
aoqi@0:         EVT_TRACE(JVMTI_EVENT_THREAD_END, ("JVMTI [%s] Evt Thread End event sent",
aoqi@0:                      JvmtiTrace::safe_get_thread_name(thread) ));
aoqi@0: 
aoqi@0:         JvmtiEnv *env = ets->get_env();
aoqi@0:         JvmtiThreadEventMark jem(thread);
aoqi@0:         JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:         jvmtiEventThreadEnd callback = env->callbacks()->ThreadEnd;
aoqi@0:         if (callback != NULL) {
aoqi@0:           (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread());
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_object_free(JvmtiEnv* env, jlong tag) {
aoqi@0:   assert(SafepointSynchronize::is_at_safepoint(), "must be executed at safepoint");
aoqi@0:   assert(env->is_enabled(JVMTI_EVENT_OBJECT_FREE), "checking");
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Trg Object Free triggered" ));
aoqi@0:   EVT_TRACE(JVMTI_EVENT_OBJECT_FREE, ("JVMTI [?] Evt Object Free sent"));
aoqi@0: 
aoqi@0:   jvmtiEventObjectFree callback = env->callbacks()->ObjectFree;
aoqi@0:   if (callback != NULL) {
aoqi@0:     (*callback)(env->jvmti_external(), tag);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_resource_exhausted(jint resource_exhausted_flags, const char* description) {
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Trg resource exhausted event triggered" ));
aoqi@0: 
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_RESOURCE_EXHAUSTED)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_RESOURCE_EXHAUSTED, ("JVMTI Evt resource exhausted event sent" ));
aoqi@0: 
aoqi@0:       JavaThread *thread  = JavaThread::current();
aoqi@0:       JvmtiThreadEventMark jem(thread);
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventResourceExhausted callback = env->callbacks()->ResourceExhausted;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(),
aoqi@0:                     resource_exhausted_flags, NULL, description);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_method_entry(JavaThread *thread, Method* method, frame current_frame) {
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Trg Method Entry triggered %s.%s",
aoqi@0:                      JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() ));
aoqi@0: 
aoqi@0:   JvmtiThreadState* state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL || !state->is_interp_only_mode()) {
aoqi@0:     // for any thread that actually wants method entry, interp_only_mode is set
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   state->incr_cur_stack_depth();
aoqi@0: 
aoqi@0:   if (state->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) {
aoqi@0:     JvmtiEnvThreadStateIterator it(state);
aoqi@0:     for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:       if (ets->is_enabled(JVMTI_EVENT_METHOD_ENTRY)) {
aoqi@0:         EVT_TRACE(JVMTI_EVENT_METHOD_ENTRY, ("JVMTI [%s] Evt Method Entry sent %s.%s",
aoqi@0:                                              JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                                              (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                                              (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() ));
aoqi@0: 
aoqi@0:         JvmtiEnv *env = ets->get_env();
aoqi@0:         JvmtiMethodEventMark jem(thread, mh);
aoqi@0:         JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:         jvmtiEventMethodEntry callback = env->callbacks()->MethodEntry;
aoqi@0:         if (callback != NULL) {
aoqi@0:           (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_methodID());
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_method_exit(JavaThread *thread, Method* method, frame current_frame) {
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Trg Method Exit triggered %s.%s",
aoqi@0:                      JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() ));
aoqi@0: 
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL || !state->is_interp_only_mode()) {
aoqi@0:     // for any thread that actually wants method exit, interp_only_mode is set
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // return a flag when a method terminates by throwing an exception
aoqi@0:   // i.e. if an exception is thrown and it's not caught by the current method
aoqi@0:   bool exception_exit = state->is_exception_detected() && !state->is_exception_caught();
aoqi@0: 
aoqi@0: 
aoqi@0:   if (state->is_enabled(JVMTI_EVENT_METHOD_EXIT)) {
aoqi@0:     Handle result;
aoqi@0:     jvalue value;
aoqi@0:     value.j = 0L;
aoqi@0: 
aoqi@0:     // if the method hasn't been popped because of an exception then we populate
aoqi@0:     // the return_value parameter for the callback. At this point we only have
aoqi@0:     // the address of a "raw result" and we just call into the interpreter to
aoqi@0:     // convert this into a jvalue.
aoqi@0:     if (!exception_exit) {
aoqi@0:       oop oop_result;
aoqi@0:       BasicType type = current_frame.interpreter_frame_result(&oop_result, &value);
aoqi@0:       if (type == T_OBJECT || type == T_ARRAY) {
aoqi@0:         result = Handle(thread, oop_result);
aoqi@0:       }
aoqi@0:     }
aoqi@0: 
aoqi@0:     JvmtiEnvThreadStateIterator it(state);
aoqi@0:     for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:       if (ets->is_enabled(JVMTI_EVENT_METHOD_EXIT)) {
aoqi@0:         EVT_TRACE(JVMTI_EVENT_METHOD_EXIT, ("JVMTI [%s] Evt Method Exit sent %s.%s",
aoqi@0:                                             JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                                             (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                                             (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() ));
aoqi@0: 
aoqi@0:         JvmtiEnv *env = ets->get_env();
aoqi@0:         JvmtiMethodEventMark jem(thread, mh);
aoqi@0:         if (result.not_null()) {
aoqi@0:           value.l = JNIHandles::make_local(thread, result());
aoqi@0:         }
aoqi@0:         JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:         jvmtiEventMethodExit callback = env->callbacks()->MethodExit;
aoqi@0:         if (callback != NULL) {
aoqi@0:           (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                       jem.jni_methodID(), exception_exit,  value);
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (state->is_enabled(JVMTI_EVENT_FRAME_POP)) {
aoqi@0:     JvmtiEnvThreadStateIterator it(state);
aoqi@0:     for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:       int cur_frame_number = state->cur_stack_depth();
aoqi@0: 
aoqi@0:       if (ets->is_frame_pop(cur_frame_number)) {
aoqi@0:         // we have a NotifyFramePop entry for this frame.
aoqi@0:         // now check that this env/thread wants this event
aoqi@0:         if (ets->is_enabled(JVMTI_EVENT_FRAME_POP)) {
aoqi@0:           EVT_TRACE(JVMTI_EVENT_FRAME_POP, ("JVMTI [%s] Evt Frame Pop sent %s.%s",
aoqi@0:                                             JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                                             (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                                             (mh() == NULL) ? "NULL" : mh()->name()->as_C_string() ));
aoqi@0: 
aoqi@0:           // we also need to issue a frame pop event for this frame
aoqi@0:           JvmtiEnv *env = ets->get_env();
aoqi@0:           JvmtiMethodEventMark jem(thread, mh);
aoqi@0:           JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:           jvmtiEventFramePop callback = env->callbacks()->FramePop;
aoqi@0:           if (callback != NULL) {
aoqi@0:             (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                         jem.jni_methodID(), exception_exit);
aoqi@0:           }
aoqi@0:         }
aoqi@0:         // remove the frame's entry
aoqi@0:         ets->clear_frame_pop(cur_frame_number);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   state->decr_cur_stack_depth();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: // Todo: inline this for optimization
aoqi@0: void JvmtiExport::post_single_step(JavaThread *thread, Method* method, address location) {
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0: 
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     ets->compare_and_set_current_location(mh(), location, JVMTI_EVENT_SINGLE_STEP);
aoqi@0:     if (!ets->single_stepping_posted() && ets->is_enabled(JVMTI_EVENT_SINGLE_STEP)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_SINGLE_STEP, ("JVMTI [%s] Evt Single Step sent %s.%s @ %d",
aoqi@0:                     JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                     (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                     (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(),
aoqi@0:                     location - mh()->code_base() ));
aoqi@0: 
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiLocationEventMark jem(thread, mh, location);
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventSingleStep callback = env->callbacks()->SingleStep;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                     jem.jni_methodID(), jem.location());
aoqi@0:       }
aoqi@0: 
aoqi@0:       ets->set_single_stepping_posted();
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void JvmtiExport::post_exception_throw(JavaThread *thread, Method* method, address location, oop exception) {
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0:   Handle exception_handle(thread, exception);
aoqi@0: 
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION, ("JVMTI [%s] Trg Exception thrown triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   if (!state->is_exception_detected()) {
aoqi@0:     state->set_exception_detected();
aoqi@0:     JvmtiEnvThreadStateIterator it(state);
aoqi@0:     for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:       if (ets->is_enabled(JVMTI_EVENT_EXCEPTION) && (exception != NULL)) {
aoqi@0: 
aoqi@0:         EVT_TRACE(JVMTI_EVENT_EXCEPTION,
aoqi@0:                      ("JVMTI [%s] Evt Exception thrown sent %s.%s @ %d",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                       (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                       (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(),
aoqi@0:                       location - mh()->code_base() ));
aoqi@0: 
aoqi@0:         JvmtiEnv *env = ets->get_env();
aoqi@0:         JvmtiExceptionEventMark jem(thread, mh, location, exception_handle);
aoqi@0: 
aoqi@0:         // It's okay to clear these exceptions here because we duplicate
aoqi@0:         // this lookup in InterpreterRuntime::exception_handler_for_exception.
aoqi@0:         EXCEPTION_MARK;
aoqi@0: 
aoqi@0:         bool should_repeat;
aoqi@0:         vframeStream st(thread);
aoqi@0:         assert(!st.at_end(), "cannot be at end");
aoqi@0:         Method* current_method = NULL;
aoqi@0:         // A GC may occur during the Method::fast_exception_handler_bci_for()
aoqi@0:         // call below if it needs to load the constraint class. Using a
aoqi@0:         // methodHandle to keep the 'current_method' from being deallocated
aoqi@0:         // if GC happens.
aoqi@0:         methodHandle current_mh = methodHandle(thread, current_method);
aoqi@0:         int current_bci = -1;
aoqi@0:         do {
aoqi@0:           current_method = st.method();
aoqi@0:           current_mh = methodHandle(thread, current_method);
aoqi@0:           current_bci = st.bci();
aoqi@0:           do {
aoqi@0:             should_repeat = false;
aoqi@0:             KlassHandle eh_klass(thread, exception_handle()->klass());
aoqi@0:             current_bci = Method::fast_exception_handler_bci_for(
aoqi@0:               current_mh, eh_klass, current_bci, THREAD);
aoqi@0:             if (HAS_PENDING_EXCEPTION) {
aoqi@0:               exception_handle = Handle(thread, PENDING_EXCEPTION);
aoqi@0:               CLEAR_PENDING_EXCEPTION;
aoqi@0:               should_repeat = true;
aoqi@0:             }
aoqi@0:           } while (should_repeat && (current_bci != -1));
aoqi@0:           st.next();
aoqi@0:         } while ((current_bci < 0) && (!st.at_end()));
aoqi@0: 
aoqi@0:         jmethodID catch_jmethodID;
aoqi@0:         if (current_bci < 0) {
aoqi@0:           catch_jmethodID = 0;
aoqi@0:           current_bci = 0;
aoqi@0:         } else {
aoqi@0:           catch_jmethodID = jem.to_jmethodID(current_mh);
aoqi@0:         }
aoqi@0: 
aoqi@0:         JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:         jvmtiEventException callback = env->callbacks()->Exception;
aoqi@0:         if (callback != NULL) {
aoqi@0:           (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                       jem.jni_methodID(), jem.location(),
aoqi@0:                       jem.exception(),
aoqi@0:                       catch_jmethodID, current_bci);
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   // frames may get popped because of this throw, be safe - invalidate cached depth
aoqi@0:   state->invalidate_cur_stack_depth();
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void JvmtiExport::notice_unwind_due_to_exception(JavaThread *thread, Method* method, address location, oop exception, bool in_handler_frame) {
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0:   Handle exception_handle(thread, exception);
aoqi@0: 
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_EXCEPTION_CATCH,
aoqi@0:                     ("JVMTI [%s] Trg unwind_due_to_exception triggered %s.%s @ %s%d - %s",
aoqi@0:                      JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(),
aoqi@0:                      location==0? "no location:" : "",
aoqi@0:                      location==0? 0 : location - mh()->code_base(),
aoqi@0:                      in_handler_frame? "in handler frame" : "not handler frame" ));
aoqi@0: 
aoqi@0:   if (state->is_exception_detected()) {
aoqi@0: 
aoqi@0:     state->invalidate_cur_stack_depth();
aoqi@0:     if (!in_handler_frame) {
aoqi@0:       // Not in exception handler.
aoqi@0:       if(state->is_interp_only_mode()) {
aoqi@0:         // method exit and frame pop events are posted only in interp mode.
aoqi@0:         // When these events are enabled code should be in running in interp mode.
aoqi@0:         JvmtiExport::post_method_exit(thread, method, thread->last_frame());
aoqi@0:         // The cached cur_stack_depth might have changed from the
aoqi@0:         // operations of frame pop or method exit. We are not 100% sure
aoqi@0:         // the cached cur_stack_depth is still valid depth so invalidate
aoqi@0:         // it.
aoqi@0:         state->invalidate_cur_stack_depth();
aoqi@0:       }
aoqi@0:     } else {
aoqi@0:       // In exception handler frame. Report exception catch.
aoqi@0:       assert(location != NULL, "must be a known location");
aoqi@0:       // Update cur_stack_depth - the frames above the current frame
aoqi@0:       // have been unwound due to this exception:
aoqi@0:       assert(!state->is_exception_caught(), "exception must not be caught yet.");
aoqi@0:       state->set_exception_caught();
aoqi@0: 
aoqi@0:       JvmtiEnvThreadStateIterator it(state);
aoqi@0:       for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:         if (ets->is_enabled(JVMTI_EVENT_EXCEPTION_CATCH) && (exception_handle() != NULL)) {
aoqi@0:           EVT_TRACE(JVMTI_EVENT_EXCEPTION_CATCH,
aoqi@0:                      ("JVMTI [%s] Evt ExceptionCatch sent %s.%s @ %d",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                       (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                       (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(),
aoqi@0:                       location - mh()->code_base() ));
aoqi@0: 
aoqi@0:           JvmtiEnv *env = ets->get_env();
aoqi@0:           JvmtiExceptionEventMark jem(thread, mh, location, exception_handle);
aoqi@0:           JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:           jvmtiEventExceptionCatch callback = env->callbacks()->ExceptionCatch;
aoqi@0:           if (callback != NULL) {
aoqi@0:             (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                       jem.jni_methodID(), jem.location(),
aoqi@0:                       jem.exception());
aoqi@0:           }
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: oop JvmtiExport::jni_GetField_probe(JavaThread *thread, jobject jobj, oop obj,
aoqi@0:                                     Klass* klass, jfieldID fieldID, bool is_static) {
aoqi@0:   if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) {
aoqi@0:     // At least one field access watch is set so we have more work
aoqi@0:     // to do. This wrapper is used by entry points that allow us
aoqi@0:     // to create handles in post_field_access_by_jni().
aoqi@0:     post_field_access_by_jni(thread, obj, klass, fieldID, is_static);
aoqi@0:     // event posting can block so refetch oop if we were passed a jobj
aoqi@0:     if (jobj != NULL) return JNIHandles::resolve_non_null(jobj);
aoqi@0:   }
aoqi@0:   return obj;
aoqi@0: }
aoqi@0: 
aoqi@0: oop JvmtiExport::jni_GetField_probe_nh(JavaThread *thread, jobject jobj, oop obj,
aoqi@0:                                        Klass* klass, jfieldID fieldID, bool is_static) {
aoqi@0:   if (*((int *)get_field_access_count_addr()) > 0 && thread->has_last_Java_frame()) {
aoqi@0:     // At least one field access watch is set so we have more work
aoqi@0:     // to do. This wrapper is used by "quick" entry points that don't
aoqi@0:     // allow us to create handles in post_field_access_by_jni(). We
aoqi@0:     // override that with a ResetNoHandleMark.
aoqi@0:     ResetNoHandleMark rnhm;
aoqi@0:     post_field_access_by_jni(thread, obj, klass, fieldID, is_static);
aoqi@0:     // event posting can block so refetch oop if we were passed a jobj
aoqi@0:     if (jobj != NULL) return JNIHandles::resolve_non_null(jobj);
aoqi@0:   }
aoqi@0:   return obj;
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_field_access_by_jni(JavaThread *thread, oop obj,
aoqi@0:                                            Klass* klass, jfieldID fieldID, bool is_static) {
aoqi@0:   // We must be called with a Java context in order to provide reasonable
aoqi@0:   // values for the klazz, method, and location fields. The callers of this
aoqi@0:   // function don't make the call unless there is a Java context.
aoqi@0:   assert(thread->has_last_Java_frame(), "must be called with a Java context");
aoqi@0: 
aoqi@0:   ResourceMark rm;
aoqi@0:   fieldDescriptor fd;
aoqi@0:   // if get_field_descriptor finds fieldID to be invalid, then we just bail
aoqi@0:   bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd);
aoqi@0:   assert(valid_fieldID == true,"post_field_access_by_jni called with invalid fieldID");
aoqi@0:   if (!valid_fieldID) return;
aoqi@0:   // field accesses are not watched so bail
aoqi@0:   if (!fd.is_field_access_watched()) return;
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0:   KlassHandle h_klass(thread, klass);
aoqi@0:   Handle h_obj;
aoqi@0:   if (!is_static) {
aoqi@0:     // non-static field accessors have an object, but we need a handle
aoqi@0:     assert(obj != NULL, "non-static needs an object");
aoqi@0:     h_obj = Handle(thread, obj);
aoqi@0:   }
aoqi@0:   post_field_access(thread,
aoqi@0:                     thread->last_frame().interpreter_frame_method(),
aoqi@0:                     thread->last_frame().interpreter_frame_bcp(),
aoqi@0:                     h_klass, h_obj, fieldID);
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_field_access(JavaThread *thread, Method* method,
aoqi@0:   address location, KlassHandle field_klass, Handle object, jfieldID field) {
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0: 
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Trg Field Access event triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     if (ets->is_enabled(JVMTI_EVENT_FIELD_ACCESS)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_FIELD_ACCESS, ("JVMTI [%s] Evt Field Access event sent %s.%s @ %d",
aoqi@0:                      JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                      (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(),
aoqi@0:                      location - mh()->code_base() ));
aoqi@0: 
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiLocationEventMark jem(thread, mh, location);
aoqi@0:       jclass field_jclass = jem.to_jclass(field_klass());
aoqi@0:       jobject field_jobject = jem.to_jobject(object());
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventFieldAccess callback = env->callbacks()->FieldAccess;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                     jem.jni_methodID(), jem.location(),
aoqi@0:                     field_jclass, field_jobject, field);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: oop JvmtiExport::jni_SetField_probe(JavaThread *thread, jobject jobj, oop obj,
aoqi@0:                                     Klass* klass, jfieldID fieldID, bool is_static,
aoqi@0:                                     char sig_type, jvalue *value) {
aoqi@0:   if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) {
aoqi@0:     // At least one field modification watch is set so we have more work
aoqi@0:     // to do. This wrapper is used by entry points that allow us
aoqi@0:     // to create handles in post_field_modification_by_jni().
aoqi@0:     post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value);
aoqi@0:     // event posting can block so refetch oop if we were passed a jobj
aoqi@0:     if (jobj != NULL) return JNIHandles::resolve_non_null(jobj);
aoqi@0:   }
aoqi@0:   return obj;
aoqi@0: }
aoqi@0: 
aoqi@0: oop JvmtiExport::jni_SetField_probe_nh(JavaThread *thread, jobject jobj, oop obj,
aoqi@0:                                        Klass* klass, jfieldID fieldID, bool is_static,
aoqi@0:                                        char sig_type, jvalue *value) {
aoqi@0:   if (*((int *)get_field_modification_count_addr()) > 0 && thread->has_last_Java_frame()) {
aoqi@0:     // At least one field modification watch is set so we have more work
aoqi@0:     // to do. This wrapper is used by "quick" entry points that don't
aoqi@0:     // allow us to create handles in post_field_modification_by_jni(). We
aoqi@0:     // override that with a ResetNoHandleMark.
aoqi@0:     ResetNoHandleMark rnhm;
aoqi@0:     post_field_modification_by_jni(thread, obj, klass, fieldID, is_static, sig_type, value);
aoqi@0:     // event posting can block so refetch oop if we were passed a jobj
aoqi@0:     if (jobj != NULL) return JNIHandles::resolve_non_null(jobj);
aoqi@0:   }
aoqi@0:   return obj;
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_field_modification_by_jni(JavaThread *thread, oop obj,
aoqi@0:                                                  Klass* klass, jfieldID fieldID, bool is_static,
aoqi@0:                                                  char sig_type, jvalue *value) {
aoqi@0:   // We must be called with a Java context in order to provide reasonable
aoqi@0:   // values for the klazz, method, and location fields. The callers of this
aoqi@0:   // function don't make the call unless there is a Java context.
aoqi@0:   assert(thread->has_last_Java_frame(), "must be called with Java context");
aoqi@0: 
aoqi@0:   ResourceMark rm;
aoqi@0:   fieldDescriptor fd;
aoqi@0:   // if get_field_descriptor finds fieldID to be invalid, then we just bail
aoqi@0:   bool valid_fieldID = JvmtiEnv::get_field_descriptor(klass, fieldID, &fd);
aoqi@0:   assert(valid_fieldID == true,"post_field_modification_by_jni called with invalid fieldID");
aoqi@0:   if (!valid_fieldID) return;
aoqi@0:   // field modifications are not watched so bail
aoqi@0:   if (!fd.is_field_modification_watched()) return;
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0: 
aoqi@0:   Handle h_obj;
aoqi@0:   if (!is_static) {
aoqi@0:     // non-static field accessors have an object, but we need a handle
aoqi@0:     assert(obj != NULL, "non-static needs an object");
aoqi@0:     h_obj = Handle(thread, obj);
aoqi@0:   }
aoqi@0:   KlassHandle h_klass(thread, klass);
aoqi@0:   post_field_modification(thread,
aoqi@0:                           thread->last_frame().interpreter_frame_method(),
aoqi@0:                           thread->last_frame().interpreter_frame_bcp(),
aoqi@0:                           h_klass, h_obj, fieldID, sig_type, value);
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_raw_field_modification(JavaThread *thread, Method* method,
aoqi@0:   address location, KlassHandle field_klass, Handle object, jfieldID field,
aoqi@0:   char sig_type, jvalue *value) {
aoqi@0: 
aoqi@0:   if (sig_type == 'I' || sig_type == 'Z' || sig_type == 'C' || sig_type == 'S') {
aoqi@0:     // 'I' instructions are used for byte, char, short and int.
aoqi@0:     // determine which it really is, and convert
aoqi@0:     fieldDescriptor fd;
aoqi@0:     bool found = JvmtiEnv::get_field_descriptor(field_klass(), field, &fd);
aoqi@0:     // should be found (if not, leave as is)
aoqi@0:     if (found) {
aoqi@0:       jint ival = value->i;
aoqi@0:       // convert value from int to appropriate type
aoqi@0:       switch (fd.field_type()) {
aoqi@0:       case T_BOOLEAN:
aoqi@0:         sig_type = 'Z';
aoqi@0:         value->i = 0; // clear it
aoqi@0:         value->z = (jboolean)ival;
aoqi@0:         break;
aoqi@0:       case T_BYTE:
aoqi@0:         sig_type = 'B';
aoqi@0:         value->i = 0; // clear it
aoqi@0:         value->b = (jbyte)ival;
aoqi@0:         break;
aoqi@0:       case T_CHAR:
aoqi@0:         sig_type = 'C';
aoqi@0:         value->i = 0; // clear it
aoqi@0:         value->c = (jchar)ival;
aoqi@0:         break;
aoqi@0:       case T_SHORT:
aoqi@0:         sig_type = 'S';
aoqi@0:         value->i = 0; // clear it
aoqi@0:         value->s = (jshort)ival;
aoqi@0:         break;
aoqi@0:       case T_INT:
aoqi@0:         // nothing to do
aoqi@0:         break;
aoqi@0:       default:
aoqi@0:         // this is an integer instruction, should be one of above
aoqi@0:         ShouldNotReachHere();
aoqi@0:         break;
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   assert(sig_type != '[', "array should have sig_type == 'L'");
aoqi@0:   bool handle_created = false;
aoqi@0: 
aoqi@0:   // convert oop to JNI handle.
aoqi@0:   if (sig_type == 'L') {
aoqi@0:     handle_created = true;
aoqi@0:     value->l = (jobject)JNIHandles::make_local(thread, (oop)value->l);
aoqi@0:   }
aoqi@0: 
aoqi@0:   post_field_modification(thread, method, location, field_klass, object, field, sig_type, value);
aoqi@0: 
aoqi@0:   // Destroy the JNI handle allocated above.
aoqi@0:   if (handle_created) {
aoqi@0:     JNIHandles::destroy_local(value->l);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_field_modification(JavaThread *thread, Method* method,
aoqi@0:   address location, KlassHandle field_klass, Handle object, jfieldID field,
aoqi@0:   char sig_type, jvalue *value_ptr) {
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0: 
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_FIELD_MODIFICATION,
aoqi@0:                      ("JVMTI [%s] Trg Field Modification event triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     if (ets->is_enabled(JVMTI_EVENT_FIELD_MODIFICATION)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_FIELD_MODIFICATION,
aoqi@0:                    ("JVMTI [%s] Evt Field Modification event sent %s.%s @ %d",
aoqi@0:                     JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                     (mh() == NULL) ? "NULL" : mh()->klass_name()->as_C_string(),
aoqi@0:                     (mh() == NULL) ? "NULL" : mh()->name()->as_C_string(),
aoqi@0:                     location - mh()->code_base() ));
aoqi@0: 
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiLocationEventMark jem(thread, mh, location);
aoqi@0:       jclass field_jclass = jem.to_jclass(field_klass());
aoqi@0:       jobject field_jobject = jem.to_jobject(object());
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventFieldModification callback = env->callbacks()->FieldModification;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                     jem.jni_methodID(), jem.location(),
aoqi@0:                     field_jclass, field_jobject, field, sig_type, *value_ptr);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_native_method_bind(Method* method, address* function_ptr) {
aoqi@0:   JavaThread* thread = JavaThread::current();
aoqi@0:   assert(thread->thread_state() == _thread_in_vm, "must be in vm state");
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0:   methodHandle mh(thread, method);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Trg Native Method Bind event triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   if (JvmtiEventController::is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) {
aoqi@0:     JvmtiEnvIterator it;
aoqi@0:     for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:       if (env->is_enabled(JVMTI_EVENT_NATIVE_METHOD_BIND)) {
aoqi@0:         EVT_TRACE(JVMTI_EVENT_NATIVE_METHOD_BIND, ("JVMTI [%s] Evt Native Method Bind event sent",
aoqi@0:                      JvmtiTrace::safe_get_thread_name(thread) ));
aoqi@0: 
aoqi@0:         JvmtiMethodEventMark jem(thread, mh);
aoqi@0:         JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:         JNIEnv* jni_env =  JvmtiEnv::get_phase() == JVMTI_PHASE_PRIMORDIAL? NULL : jem.jni_env();
aoqi@0:         jvmtiEventNativeMethodBind callback = env->callbacks()->NativeMethodBind;
aoqi@0:         if (callback != NULL) {
aoqi@0:           (*callback)(env->jvmti_external(), jni_env, jem.jni_thread(),
aoqi@0:                       jem.jni_methodID(), (void*)(*function_ptr), (void**)function_ptr);
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // Returns a record containing inlining information for the given nmethod
aoqi@0: jvmtiCompiledMethodLoadInlineRecord* create_inline_record(nmethod* nm) {
aoqi@0:   jint numstackframes = 0;
aoqi@0:   jvmtiCompiledMethodLoadInlineRecord* record = (jvmtiCompiledMethodLoadInlineRecord*)NEW_RESOURCE_OBJ(jvmtiCompiledMethodLoadInlineRecord);
aoqi@0:   record->header.kind = JVMTI_CMLR_INLINE_INFO;
aoqi@0:   record->header.next = NULL;
aoqi@0:   record->header.majorinfoversion = JVMTI_CMLR_MAJOR_VERSION_1;
aoqi@0:   record->header.minorinfoversion = JVMTI_CMLR_MINOR_VERSION_0;
aoqi@0:   record->numpcs = 0;
aoqi@0:   for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) {
aoqi@0:    if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue;
aoqi@0:    record->numpcs++;
aoqi@0:   }
aoqi@0:   record->pcinfo = (PCStackInfo*)(NEW_RESOURCE_ARRAY(PCStackInfo, record->numpcs));
aoqi@0:   int scope = 0;
aoqi@0:   for(PcDesc* p = nm->scopes_pcs_begin(); p < nm->scopes_pcs_end(); p++) {
aoqi@0:     if(p->scope_decode_offset() == DebugInformationRecorder::serialized_null) continue;
aoqi@0:     void* pc_address = (void*)p->real_pc(nm);
aoqi@0:     assert(pc_address != NULL, "pc_address must be non-null");
aoqi@0:     record->pcinfo[scope].pc = pc_address;
aoqi@0:     numstackframes=0;
aoqi@0:     for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) {
aoqi@0:       numstackframes++;
aoqi@0:     }
aoqi@0:     assert(numstackframes != 0, "numstackframes must be nonzero.");
aoqi@0:     record->pcinfo[scope].methods = (jmethodID *)NEW_RESOURCE_ARRAY(jmethodID, numstackframes);
aoqi@0:     record->pcinfo[scope].bcis = (jint *)NEW_RESOURCE_ARRAY(jint, numstackframes);
aoqi@0:     record->pcinfo[scope].numstackframes = numstackframes;
aoqi@0:     int stackframe = 0;
aoqi@0:     for(ScopeDesc* sd = nm->scope_desc_at(p->real_pc(nm));sd != NULL;sd = sd->sender()) {
aoqi@0:       // 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()
aoqi@0:       assert(sd->method() != NULL, "sd->method() cannot be null.");
aoqi@0:       record->pcinfo[scope].methods[stackframe] = sd->method()->jmethod_id();
aoqi@0:       record->pcinfo[scope].bcis[stackframe] = sd->bci();
aoqi@0:       stackframe++;
aoqi@0:     }
aoqi@0:     scope++;
aoqi@0:   }
aoqi@0:   return record;
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_compiled_method_load(nmethod *nm) {
aoqi@0:   JavaThread* thread = JavaThread::current();
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD,
aoqi@0:                  ("JVMTI [%s] method compile load event triggered",
aoqi@0:                  JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) {
aoqi@0: 
aoqi@0:       EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD,
aoqi@0:                 ("JVMTI [%s] class compile method load event sent %s.%s  ",
aoqi@0:                 JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                 (nm->method() == NULL) ? "NULL" : nm->method()->klass_name()->as_C_string(),
aoqi@0:                 (nm->method() == NULL) ? "NULL" : nm->method()->name()->as_C_string()));
aoqi@0:       ResourceMark rm(thread);
aoqi@0:       HandleMark hm(thread);
aoqi@0: 
aoqi@0:       // Add inlining information
aoqi@0:       jvmtiCompiledMethodLoadInlineRecord* inlinerecord = create_inline_record(nm);
aoqi@0:       // Pass inlining information through the void pointer
aoqi@0:       JvmtiCompiledMethodLoadEventMark jem(thread, nm, inlinerecord);
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_methodID(),
aoqi@0:                     jem.code_size(), jem.code_data(), jem.map_length(),
aoqi@0:                     jem.map(), jem.compile_info());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: // post a COMPILED_METHOD_LOAD event for a given environment
aoqi@0: void JvmtiExport::post_compiled_method_load(JvmtiEnv* env, const jmethodID method, const jint length,
aoqi@0:                                             const void *code_begin, const jint map_length,
aoqi@0:                                             const jvmtiAddrLocationMap* map)
aoqi@0: {
aoqi@0:   JavaThread* thread = JavaThread::current();
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD,
aoqi@0:                  ("JVMTI [%s] method compile load event triggered (by GenerateEvents)",
aoqi@0:                  JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   if (env->is_enabled(JVMTI_EVENT_COMPILED_METHOD_LOAD)) {
aoqi@0: 
aoqi@0:     EVT_TRACE(JVMTI_EVENT_COMPILED_METHOD_LOAD,
aoqi@0:               ("JVMTI [%s] class compile method load event sent (by GenerateEvents), jmethodID=" PTR_FORMAT,
aoqi@0:               JvmtiTrace::safe_get_thread_name(thread), method));
aoqi@0: 
aoqi@0:     JvmtiEventMark jem(thread);
aoqi@0:     JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:     jvmtiEventCompiledMethodLoad callback = env->callbacks()->CompiledMethodLoad;
aoqi@0:     if (callback != NULL) {
aoqi@0:       (*callback)(env->jvmti_external(), method,
aoqi@0:                   length, code_begin, map_length,
aoqi@0:                   map, NULL);
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_dynamic_code_generated_internal(const char *name, const void *code_begin, const void *code_end) {
aoqi@0:   assert(name != NULL && name[0] != '\0', "sanity check");
aoqi@0: 
aoqi@0:   JavaThread* thread = JavaThread::current();
aoqi@0:   // In theory everyone coming thru here is in_vm but we need to be certain
aoqi@0:   // because a callee will do a vm->native transition
aoqi@0:   ThreadInVMfromUnknown __tiv;
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED,
aoqi@0:                  ("JVMTI [%s] method dynamic code generated event triggered",
aoqi@0:                  JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED,
aoqi@0:                 ("JVMTI [%s] dynamic code generated event sent for %s",
aoqi@0:                 JvmtiTrace::safe_get_thread_name(thread), name));
aoqi@0:       JvmtiEventMark jem(thread);
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char));
aoqi@0:       jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), name, (void*)code_begin, length);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_dynamic_code_generated(const char *name, const void *code_begin, const void *code_end) {
aoqi@0:   jvmtiPhase phase = JvmtiEnv::get_phase();
aoqi@0:   if (phase == JVMTI_PHASE_PRIMORDIAL || phase == JVMTI_PHASE_START) {
aoqi@0:     post_dynamic_code_generated_internal(name, code_begin, code_end);
aoqi@0:   } else {
aoqi@0:     // It may not be safe to post the event from this thread.  Defer all
aoqi@0:     // postings to the service thread so that it can perform them in a safe
aoqi@0:     // context and in-order.
aoqi@0:     MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag);
aoqi@0:     JvmtiDeferredEvent event = JvmtiDeferredEvent::dynamic_code_generated_event(
aoqi@0:         name, code_begin, code_end);
aoqi@0:     JvmtiDeferredEventQueue::enqueue(event);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: // post a DYNAMIC_CODE_GENERATED event for a given environment
aoqi@0: // used by GenerateEvents
aoqi@0: void JvmtiExport::post_dynamic_code_generated(JvmtiEnv* env, const char *name,
aoqi@0:                                               const void *code_begin, const void *code_end)
aoqi@0: {
aoqi@0:   JavaThread* thread = JavaThread::current();
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED,
aoqi@0:                  ("JVMTI [%s] dynamic code generated event triggered (by GenerateEvents)",
aoqi@0:                   JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   if (env->is_enabled(JVMTI_EVENT_DYNAMIC_CODE_GENERATED)) {
aoqi@0:     EVT_TRACE(JVMTI_EVENT_DYNAMIC_CODE_GENERATED,
aoqi@0:               ("JVMTI [%s] dynamic code generated event sent for %s",
aoqi@0:                JvmtiTrace::safe_get_thread_name(thread), name));
aoqi@0:     JvmtiEventMark jem(thread);
aoqi@0:     JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:     jint length = (jint)pointer_delta(code_end, code_begin, sizeof(char));
aoqi@0:     jvmtiEventDynamicCodeGenerated callback = env->callbacks()->DynamicCodeGenerated;
aoqi@0:     if (callback != NULL) {
aoqi@0:       (*callback)(env->jvmti_external(), name, (void*)code_begin, length);
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // post a DynamicCodeGenerated event while holding locks in the VM.
aoqi@0: void JvmtiExport::post_dynamic_code_generated_while_holding_locks(const char* name,
aoqi@0:                                                                   address code_begin, address code_end)
aoqi@0: {
aoqi@0:   // register the stub with the current dynamic code event collector
aoqi@0:   JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current());
aoqi@0:   // state can only be NULL if the current thread is exiting which
aoqi@0:   // should not happen since we're trying to post an event
aoqi@0:   guarantee(state != NULL, "attempt to register stub via an exiting thread");
aoqi@0:   JvmtiDynamicCodeEventCollector* collector = state->get_dynamic_code_event_collector();
aoqi@0:   guarantee(collector != NULL, "attempt to register stub without event collector");
aoqi@0:   collector->register_stub(name, code_begin, code_end);
aoqi@0: }
aoqi@0: 
aoqi@0: // Collect all the vm internally allocated objects which are visible to java world
aoqi@0: void JvmtiExport::record_vm_internal_object_allocation(oop obj) {
aoqi@0:   Thread* thread = ThreadLocalStorage::thread();
aoqi@0:   if (thread != NULL && thread->is_Java_thread())  {
aoqi@0:     // Can not take safepoint here.
aoqi@0:     No_Safepoint_Verifier no_sfpt;
aoqi@0:     // Can not take safepoint here so can not use state_for to get
aoqi@0:     // jvmti thread state.
aoqi@0:     JvmtiThreadState *state = ((JavaThread*)thread)->jvmti_thread_state();
aoqi@0:     if (state != NULL ) {
aoqi@0:       // state is non NULL when VMObjectAllocEventCollector is enabled.
aoqi@0:       JvmtiVMObjectAllocEventCollector *collector;
aoqi@0:       collector = state->get_vm_object_alloc_event_collector();
aoqi@0:       if (collector != NULL && collector->is_enabled()) {
aoqi@0:         // Don't record classes as these will be notified via the ClassLoad
aoqi@0:         // event.
aoqi@0:         if (obj->klass() != SystemDictionary::Class_klass()) {
aoqi@0:           collector->record_allocation(obj);
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_garbage_collection_finish() {
aoqi@0:   Thread *thread = Thread::current(); // this event is posted from VM-Thread.
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH,
aoqi@0:                  ("JVMTI [%s] garbage collection finish event triggered",
aoqi@0:                   JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH,
aoqi@0:                 ("JVMTI [%s] garbage collection finish event sent ",
aoqi@0:                  JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:       JvmtiThreadEventTransition jet(thread);
aoqi@0:       // JNIEnv is NULL here because this event is posted from VM Thread
aoqi@0:       jvmtiEventGarbageCollectionFinish callback = env->callbacks()->GarbageCollectionFinish;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_garbage_collection_start() {
aoqi@0:   Thread* thread = Thread::current(); // this event is posted from vm-thread.
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START,
aoqi@0:                  ("JVMTI [%s] garbage collection start event triggered",
aoqi@0:                   JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_GARBAGE_COLLECTION_START)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_GARBAGE_COLLECTION_START,
aoqi@0:                 ("JVMTI [%s] garbage collection start event sent ",
aoqi@0:                  JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:       JvmtiThreadEventTransition jet(thread);
aoqi@0:       // JNIEnv is NULL here because this event is posted from VM Thread
aoqi@0:       jvmtiEventGarbageCollectionStart callback = env->callbacks()->GarbageCollectionStart;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_data_dump() {
aoqi@0:   Thread *thread = Thread::current();
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST,
aoqi@0:                  ("JVMTI [%s] data dump request event triggered",
aoqi@0:                   JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_DATA_DUMP_REQUEST)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_DATA_DUMP_REQUEST,
aoqi@0:                 ("JVMTI [%s] data dump request event sent ",
aoqi@0:                  JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:      JvmtiThreadEventTransition jet(thread);
aoqi@0:      // JNIEnv is NULL here because this event is posted from VM Thread
aoqi@0:      jvmtiEventDataDumpRequest callback = env->callbacks()->DataDumpRequest;
aoqi@0:      if (callback != NULL) {
aoqi@0:        (*callback)(env->jvmti_external());
aoqi@0:      }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_monitor_contended_enter(JavaThread *thread, ObjectMonitor *obj_mntr) {
aoqi@0:   oop object = (oop)obj_mntr->object();
aoqi@0:   if (!ServiceUtil::visible_oop(object)) {
aoqi@0:     // Ignore monitor contended enter for vm internal object.
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0:   Handle h(thread, object);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER,
aoqi@0:                      ("JVMTI [%s] montior contended enter event triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTER)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTER,
aoqi@0:                    ("JVMTI [%s] monitor contended enter event sent",
aoqi@0:                     JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:       JvmtiMonitorEventMark  jem(thread, h());
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventMonitorContendedEnter callback = env->callbacks()->MonitorContendedEnter;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_monitor_contended_entered(JavaThread *thread, ObjectMonitor *obj_mntr) {
aoqi@0:   oop object = (oop)obj_mntr->object();
aoqi@0:   if (!ServiceUtil::visible_oop(object)) {
aoqi@0:     // Ignore monitor contended entered for vm internal object.
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0:   Handle h(thread, object);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED,
aoqi@0:                      ("JVMTI [%s] montior contended entered event triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     if (ets->is_enabled(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED,
aoqi@0:                    ("JVMTI [%s] monitor contended enter event sent",
aoqi@0:                     JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:       JvmtiMonitorEventMark  jem(thread, h());
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventMonitorContendedEntered callback = env->callbacks()->MonitorContendedEntered;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(), jem.jni_object());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_monitor_wait(JavaThread *thread, oop object,
aoqi@0:                                           jlong timeout) {
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0:   Handle h(thread, object);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAIT,
aoqi@0:                      ("JVMTI [%s] montior wait event triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAIT)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_MONITOR_WAIT,
aoqi@0:                    ("JVMTI [%s] monitor wait event sent ",
aoqi@0:                     JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:       JvmtiMonitorEventMark  jem(thread, h());
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventMonitorWait callback = env->callbacks()->MonitorWait;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                     jem.jni_object(), timeout);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::post_monitor_waited(JavaThread *thread, ObjectMonitor *obj_mntr, jboolean timed_out) {
aoqi@0:   oop object = (oop)obj_mntr->object();
aoqi@0:   if (!ServiceUtil::visible_oop(object)) {
aoqi@0:     // Ignore monitor waited for vm internal object.
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   JvmtiThreadState *state = thread->jvmti_thread_state();
aoqi@0:   if (state == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   HandleMark hm(thread);
aoqi@0:   Handle h(thread, object);
aoqi@0: 
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_MONITOR_WAITED,
aoqi@0:                      ("JVMTI [%s] montior waited event triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0: 
aoqi@0:   JvmtiEnvThreadStateIterator it(state);
aoqi@0:   for (JvmtiEnvThreadState* ets = it.first(); ets != NULL; ets = it.next(ets)) {
aoqi@0:     if (ets->is_enabled(JVMTI_EVENT_MONITOR_WAITED)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_MONITOR_WAITED,
aoqi@0:                    ("JVMTI [%s] monitor waited event sent ",
aoqi@0:                     JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:       JvmtiMonitorEventMark  jem(thread, h());
aoqi@0:       JvmtiEnv *env = ets->get_env();
aoqi@0:       JvmtiThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventMonitorWaited callback = env->callbacks()->MonitorWaited;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                     jem.jni_object(), timed_out);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: void JvmtiExport::post_vm_object_alloc(JavaThread *thread,  oop object) {
aoqi@0:   EVT_TRIG_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Trg vm object alloc triggered",
aoqi@0:                       JvmtiTrace::safe_get_thread_name(thread)));
aoqi@0:   if (object == NULL) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   HandleMark hm(thread);
aoqi@0:   Handle h(thread, object);
aoqi@0:   JvmtiEnvIterator it;
aoqi@0:   for (JvmtiEnv* env = it.first(); env != NULL; env = it.next(env)) {
aoqi@0:     if (env->is_enabled(JVMTI_EVENT_VM_OBJECT_ALLOC)) {
aoqi@0:       EVT_TRACE(JVMTI_EVENT_VM_OBJECT_ALLOC, ("JVMTI [%s] Evt vmobject alloc sent %s",
aoqi@0:                                          JvmtiTrace::safe_get_thread_name(thread),
aoqi@0:                                          object==NULL? "NULL" : java_lang_Class::as_Klass(object)->external_name()));
aoqi@0: 
aoqi@0:       JvmtiVMObjectAllocEventMark jem(thread, h());
aoqi@0:       JvmtiJavaThreadEventTransition jet(thread);
aoqi@0:       jvmtiEventVMObjectAlloc callback = env->callbacks()->VMObjectAlloc;
aoqi@0:       if (callback != NULL) {
aoqi@0:         (*callback)(env->jvmti_external(), jem.jni_env(), jem.jni_thread(),
aoqi@0:                     jem.jni_jobject(), jem.jni_class(), jem.size());
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: ////////////////////////////////////////////////////////////////////////////////////////////////
aoqi@0: 
aoqi@0: void JvmtiExport::cleanup_thread(JavaThread* thread) {
aoqi@0:   assert(JavaThread::current() == thread, "thread is not current");
aoqi@0:   MutexLocker mu(JvmtiThreadState_lock);
aoqi@0: 
aoqi@0:   if (thread->jvmti_thread_state() != NULL) {
aoqi@0:     // This has to happen after the thread state is removed, which is
aoqi@0:     // why it is not in post_thread_end_event like its complement
aoqi@0:     // Maybe both these functions should be rolled into the posts?
aoqi@0:     JvmtiEventController::thread_ended(thread);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::oops_do(OopClosure* f) {
aoqi@0:   JvmtiCurrentBreakpoints::oops_do(f);
aoqi@0:   JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(f);
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* f) {
aoqi@0:   JvmtiTagMap::weak_oops_do(is_alive, f);
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiExport::gc_epilogue() {
aoqi@0:   JvmtiCurrentBreakpoints::gc_epilogue();
aoqi@0: }
aoqi@0: 
aoqi@0: // Onload raw monitor transition.
aoqi@0: void JvmtiExport::transition_pending_onload_raw_monitors() {
aoqi@0:   JvmtiPendingMonitors::transition_raw_monitors();
aoqi@0: }
aoqi@0: 
aoqi@0: ////////////////////////////////////////////////////////////////////////////////////////////////
aoqi@0: 
aoqi@0: // type for the Agent_OnAttach entry point
aoqi@0: extern "C" {
aoqi@0:   typedef jint (JNICALL *OnAttachEntry_t)(JavaVM*, char *, void *);
aoqi@0: }
aoqi@0: 
aoqi@0: jint JvmtiExport::load_agent_library(AttachOperation* op, outputStream* st) {
aoqi@0:   char ebuf[1024];
aoqi@0:   char buffer[JVM_MAXPATHLEN];
aoqi@0:   void* library = NULL;
aoqi@0:   jint result = JNI_ERR;
aoqi@0:   const char *on_attach_symbols[] = AGENT_ONATTACH_SYMBOLS;
aoqi@0:   size_t num_symbol_entries = ARRAY_SIZE(on_attach_symbols);
aoqi@0: 
aoqi@0:   // get agent name and options
aoqi@0:   const char* agent = op->arg(0);
aoqi@0:   const char* absParam = op->arg(1);
aoqi@0:   const char* options = op->arg(2);
aoqi@0: 
aoqi@0:   // The abs paramter should be "true" or "false"
aoqi@0:   bool is_absolute_path = (absParam != NULL) && (strcmp(absParam,"true")==0);
aoqi@0: 
aoqi@0:   // Initially marked as invalid. It will be set to valid if we can find the agent
aoqi@0:   AgentLibrary *agent_lib = new AgentLibrary(agent, options, is_absolute_path, NULL);
aoqi@0: 
aoqi@0:   // Check for statically linked in agent. If not found then if the path is
aoqi@0:   // absolute we attempt to load the library. Otherwise we try to load it
aoqi@0:   // from the standard dll directory.
aoqi@0: 
aoqi@0:   if (!os::find_builtin_agent(agent_lib, on_attach_symbols, num_symbol_entries)) {
aoqi@0:     if (is_absolute_path) {
aoqi@0:       library = os::dll_load(agent, ebuf, sizeof ebuf);
aoqi@0:     } else {
aoqi@0:       // Try to load the agent from the standard dll directory
aoqi@0:       if (os::dll_build_name(buffer, sizeof(buffer), Arguments::get_dll_dir(),
aoqi@0:                              agent)) {
aoqi@0:         library = os::dll_load(buffer, ebuf, sizeof ebuf);
aoqi@0:       }
aoqi@0:       if (library == NULL) {
aoqi@0:         // not found - try local path
aoqi@0:         char ns[1] = {0};
aoqi@0:         if (os::dll_build_name(buffer, sizeof(buffer), ns, agent)) {
aoqi@0:           library = os::dll_load(buffer, ebuf, sizeof ebuf);
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:     if (library != NULL) {
aoqi@0:       agent_lib->set_os_lib(library);
aoqi@0:       agent_lib->set_valid();
aoqi@0:     }
aoqi@0:   }
aoqi@0:   // If the library was loaded then we attempt to invoke the Agent_OnAttach
aoqi@0:   // function
aoqi@0:   if (agent_lib->valid()) {
aoqi@0:     // Lookup the Agent_OnAttach function
aoqi@0:     OnAttachEntry_t on_attach_entry = NULL;
aoqi@0:     on_attach_entry = CAST_TO_FN_PTR(OnAttachEntry_t,
aoqi@0:        os::find_agent_function(agent_lib, false, on_attach_symbols, num_symbol_entries));
aoqi@0:     if (on_attach_entry == NULL) {
aoqi@0:       // Agent_OnAttach missing - unload library
aoqi@0:       if (!agent_lib->is_static_lib()) {
aoqi@0:         os::dll_unload(library);
aoqi@0:       }
aoqi@0:       delete agent_lib;
aoqi@0:     } else {
aoqi@0:       // Invoke the Agent_OnAttach function
aoqi@0:       JavaThread* THREAD = JavaThread::current();
aoqi@0:       {
aoqi@0:         extern struct JavaVM_ main_vm;
aoqi@0:         JvmtiThreadEventMark jem(THREAD);
aoqi@0:         JvmtiJavaThreadEventTransition jet(THREAD);
aoqi@0: 
aoqi@0:         result = (*on_attach_entry)(&main_vm, (char*)options, NULL);
aoqi@0:       }
aoqi@0: 
aoqi@0:       // Agent_OnAttach may have used JNI
aoqi@0:       if (HAS_PENDING_EXCEPTION) {
aoqi@0:         CLEAR_PENDING_EXCEPTION;
aoqi@0:       }
aoqi@0: 
aoqi@0:       // If OnAttach returns JNI_OK then we add it to the list of
aoqi@0:       // agent libraries so that we can call Agent_OnUnload later.
aoqi@0:       if (result == JNI_OK) {
aoqi@0:         Arguments::add_loaded_agent(agent_lib);
aoqi@0:       } else {
aoqi@0:         delete agent_lib;
aoqi@0:       }
aoqi@0: 
aoqi@0:       // Agent_OnAttach executed so completion status is JNI_OK
aoqi@0:       st->print_cr("%d", result);
aoqi@0:       result = JNI_OK;
aoqi@0:     }
aoqi@0:   }
aoqi@0:   return result;
aoqi@0: }
aoqi@0: 
aoqi@0: ////////////////////////////////////////////////////////////////////////////////////////////////
aoqi@0: 
aoqi@0: // Setup current current thread for event collection.
aoqi@0: void JvmtiEventCollector::setup_jvmti_thread_state() {
aoqi@0:   // set this event collector to be the current one.
aoqi@0:   JvmtiThreadState* state = JvmtiThreadState::state_for(JavaThread::current());
aoqi@0:   // state can only be NULL if the current thread is exiting which
aoqi@0:   // should not happen since we're trying to configure for event collection
aoqi@0:   guarantee(state != NULL, "exiting thread called setup_jvmti_thread_state");
aoqi@0:   if (is_vm_object_alloc_event()) {
aoqi@0:     _prev = state->get_vm_object_alloc_event_collector();
aoqi@0:     state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)this);
aoqi@0:   } else if (is_dynamic_code_event()) {
aoqi@0:     _prev = state->get_dynamic_code_event_collector();
aoqi@0:     state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)this);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // Unset current event collection in this thread and reset it with previous
aoqi@0: // collector.
aoqi@0: void JvmtiEventCollector::unset_jvmti_thread_state() {
aoqi@0:   JvmtiThreadState* state = JavaThread::current()->jvmti_thread_state();
aoqi@0:   if (state != NULL) {
aoqi@0:     // restore the previous event collector (if any)
aoqi@0:     if (is_vm_object_alloc_event()) {
aoqi@0:       if (state->get_vm_object_alloc_event_collector() == this) {
aoqi@0:         state->set_vm_object_alloc_event_collector((JvmtiVMObjectAllocEventCollector *)_prev);
aoqi@0:       } else {
aoqi@0:         // this thread's jvmti state was created during the scope of
aoqi@0:         // the event collector.
aoqi@0:       }
aoqi@0:     } else {
aoqi@0:       if (is_dynamic_code_event()) {
aoqi@0:         if (state->get_dynamic_code_event_collector() == this) {
aoqi@0:           state->set_dynamic_code_event_collector((JvmtiDynamicCodeEventCollector *)_prev);
aoqi@0:         } else {
aoqi@0:           // this thread's jvmti state was created during the scope of
aoqi@0:           // the event collector.
aoqi@0:         }
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // create the dynamic code event collector
aoqi@0: JvmtiDynamicCodeEventCollector::JvmtiDynamicCodeEventCollector() : _code_blobs(NULL) {
aoqi@0:   if (JvmtiExport::should_post_dynamic_code_generated()) {
aoqi@0:     setup_jvmti_thread_state();
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // iterate over any code blob descriptors collected and post a
aoqi@0: // DYNAMIC_CODE_GENERATED event to the profiler.
aoqi@0: JvmtiDynamicCodeEventCollector::~JvmtiDynamicCodeEventCollector() {
aoqi@0:   assert(!JavaThread::current()->owns_locks(), "all locks must be released to post deferred events");
aoqi@0:  // iterate over any code blob descriptors that we collected
aoqi@0:  if (_code_blobs != NULL) {
aoqi@0:    for (int i=0; i<_code_blobs->length(); i++) {
aoqi@0:      JvmtiCodeBlobDesc* blob = _code_blobs->at(i);
aoqi@0:      JvmtiExport::post_dynamic_code_generated(blob->name(), blob->code_begin(), blob->code_end());
aoqi@0:      FreeHeap(blob);
aoqi@0:    }
aoqi@0:    delete _code_blobs;
aoqi@0:  }
aoqi@0:  unset_jvmti_thread_state();
aoqi@0: }
aoqi@0: 
aoqi@0: // register a stub
aoqi@0: void JvmtiDynamicCodeEventCollector::register_stub(const char* name, address start, address end) {
aoqi@0:  if (_code_blobs == NULL) {
aoqi@0:    _code_blobs = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<JvmtiCodeBlobDesc*>(1,true);
aoqi@0:  }
aoqi@0:  _code_blobs->append(new JvmtiCodeBlobDesc(name, start, end));
aoqi@0: }
aoqi@0: 
aoqi@0: // Setup current thread to record vm allocated objects.
aoqi@0: JvmtiVMObjectAllocEventCollector::JvmtiVMObjectAllocEventCollector() : _allocated(NULL) {
aoqi@0:   if (JvmtiExport::should_post_vm_object_alloc()) {
aoqi@0:     _enable = true;
aoqi@0:     setup_jvmti_thread_state();
aoqi@0:   } else {
aoqi@0:     _enable = false;
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // Post vm_object_alloc event for vm allocated objects visible to java
aoqi@0: // world.
aoqi@0: JvmtiVMObjectAllocEventCollector::~JvmtiVMObjectAllocEventCollector() {
aoqi@0:   if (_allocated != NULL) {
aoqi@0:     set_enabled(false);
aoqi@0:     for (int i = 0; i < _allocated->length(); i++) {
aoqi@0:       oop obj = _allocated->at(i);
aoqi@0:       if (ServiceUtil::visible_oop(obj)) {
aoqi@0:         JvmtiExport::post_vm_object_alloc(JavaThread::current(), obj);
aoqi@0:       }
aoqi@0:     }
aoqi@0:     delete _allocated;
aoqi@0:   }
aoqi@0:   unset_jvmti_thread_state();
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiVMObjectAllocEventCollector::record_allocation(oop obj) {
aoqi@0:   assert(is_enabled(), "VM object alloc event collector is not enabled");
aoqi@0:   if (_allocated == NULL) {
aoqi@0:     _allocated = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<oop>(1, true);
aoqi@0:   }
aoqi@0:   _allocated->push(obj);
aoqi@0: }
aoqi@0: 
aoqi@0: // GC support.
aoqi@0: void JvmtiVMObjectAllocEventCollector::oops_do(OopClosure* f) {
aoqi@0:   if (_allocated != NULL) {
aoqi@0:     for(int i=_allocated->length() - 1; i >= 0; i--) {
aoqi@0:       if (_allocated->at(i) != NULL) {
aoqi@0:         f->do_oop(_allocated->adr_at(i));
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: void JvmtiVMObjectAllocEventCollector::oops_do_for_all_threads(OopClosure* f) {
aoqi@0:   // no-op if jvmti not enabled
aoqi@0:   if (!JvmtiEnv::environments_might_exist()) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // Runs at safepoint. So no need to acquire Threads_lock.
aoqi@0:   for (JavaThread *jthr = Threads::first(); jthr != NULL; jthr = jthr->next()) {
aoqi@0:     JvmtiThreadState *state = jthr->jvmti_thread_state();
aoqi@0:     if (state != NULL) {
aoqi@0:       JvmtiVMObjectAllocEventCollector *collector;
aoqi@0:       collector = state->get_vm_object_alloc_event_collector();
aoqi@0:       while (collector != NULL) {
aoqi@0:         collector->oops_do(f);
aoqi@0:         collector = (JvmtiVMObjectAllocEventCollector *)collector->get_prev();
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: 
aoqi@0: // Disable collection of VMObjectAlloc events
aoqi@0: NoJvmtiVMObjectAllocMark::NoJvmtiVMObjectAllocMark() : _collector(NULL) {
aoqi@0:   // a no-op if VMObjectAlloc event is not enabled
aoqi@0:   if (!JvmtiExport::should_post_vm_object_alloc()) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0:   Thread* thread = ThreadLocalStorage::thread();
aoqi@0:   if (thread != NULL && thread->is_Java_thread())  {
aoqi@0:     JavaThread* current_thread = (JavaThread*)thread;
aoqi@0:     JvmtiThreadState *state = current_thread->jvmti_thread_state();
aoqi@0:     if (state != NULL) {
aoqi@0:       JvmtiVMObjectAllocEventCollector *collector;
aoqi@0:       collector = state->get_vm_object_alloc_event_collector();
aoqi@0:       if (collector != NULL && collector->is_enabled()) {
aoqi@0:         _collector = collector;
aoqi@0:         _collector->set_enabled(false);
aoqi@0:       }
aoqi@0:     }
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: // Re-Enable collection of VMObjectAlloc events (if previously enabled)
aoqi@0: NoJvmtiVMObjectAllocMark::~NoJvmtiVMObjectAllocMark() {
aoqi@0:   if (was_enabled()) {
aoqi@0:     _collector->set_enabled(true);
aoqi@0:   }
aoqi@0: };
aoqi@0: 
aoqi@0: JvmtiGCMarker::JvmtiGCMarker() {
aoqi@0:   // if there aren't any JVMTI environments then nothing to do
aoqi@0:   if (!JvmtiEnv::environments_might_exist()) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (JvmtiExport::should_post_garbage_collection_start()) {
aoqi@0:     JvmtiExport::post_garbage_collection_start();
aoqi@0:   }
aoqi@0: 
aoqi@0:   if (SafepointSynchronize::is_at_safepoint()) {
aoqi@0:     // Do clean up tasks that need to be done at a safepoint
aoqi@0:     JvmtiEnvBase::check_for_periodic_clean_up();
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: JvmtiGCMarker::~JvmtiGCMarker() {
aoqi@0:   // if there aren't any JVMTI environments then nothing to do
aoqi@0:   if (!JvmtiEnv::environments_might_exist()) {
aoqi@0:     return;
aoqi@0:   }
aoqi@0: 
aoqi@0:   // JVMTI notify gc finish
aoqi@0:   if (JvmtiExport::should_post_garbage_collection_finish()) {
aoqi@0:     JvmtiExport::post_garbage_collection_finish();
aoqi@0:   }
aoqi@0: }