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/*
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* Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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# include "incls/_precompiled.incl"
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# include "incls/_jvmtiEnv.cpp.incl"
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#define FIXLATER 0 // REMOVE this when completed.
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// FIXLATER: hook into JvmtiTrace
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#define TraceJVMTICalls false
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JvmtiEnv::JvmtiEnv() : JvmtiEnvBase() {
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}
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JvmtiEnv::~JvmtiEnv() {
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}
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JvmtiEnv*
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JvmtiEnv::create_a_jvmti() {
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return new JvmtiEnv();
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}
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// VM operation class to copy jni function table at safepoint.
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// More than one java threads or jvmti agents may be reading/
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// modifying jni function tables. To reduce the risk of bad
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// interaction b/w these threads it is copied at safepoint.
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class VM_JNIFunctionTableCopier : public VM_Operation {
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private:
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const struct JNINativeInterface_ *_function_table;
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public:
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VM_JNIFunctionTableCopier(const struct JNINativeInterface_ *func_tbl) {
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_function_table = func_tbl;
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};
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VMOp_Type type() const { return VMOp_JNIFunctionTableCopier; }
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void doit() {
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copy_jni_function_table(_function_table);
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};
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};
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//
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// Do not change the "prefix" marker below, everything above it is copied
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// unchanged into the filled stub, everything below is controlled by the
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// stub filler (only method bodies are carried forward, and then only for
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// functionality still in the spec).
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//
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// end file prefix
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//
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// Memory Management functions
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//
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// mem_ptr - pre-checked for NULL
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jvmtiError
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JvmtiEnv::Allocate(jlong size, unsigned char** mem_ptr) {
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return allocate(size, mem_ptr);
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} /* end Allocate */
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// mem - NULL is a valid value, must be checked
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jvmtiError
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JvmtiEnv::Deallocate(unsigned char* mem) {
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return deallocate(mem);
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} /* end Deallocate */
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// Threads_lock NOT held, java_thread not protected by lock
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// java_thread - pre-checked
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// data - NULL is a valid value, must be checked
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jvmtiError
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JvmtiEnv::SetThreadLocalStorage(JavaThread* java_thread, const void* data) {
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JvmtiThreadState* state = java_thread->jvmti_thread_state();
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if (state == NULL) {
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if (data == NULL) {
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// leaving state unset same as data set to NULL
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return JVMTI_ERROR_NONE;
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}
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// otherwise, create the state
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state = JvmtiThreadState::state_for(java_thread);
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}
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state->env_thread_state(this)->set_agent_thread_local_storage_data((void*)data);
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return JVMTI_ERROR_NONE;
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} /* end SetThreadLocalStorage */
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// Threads_lock NOT held
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// thread - NOT pre-checked
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// data_ptr - pre-checked for NULL
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jvmtiError
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JvmtiEnv::GetThreadLocalStorage(jthread thread, void** data_ptr) {
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JavaThread* current_thread = JavaThread::current();
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if (thread == NULL) {
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JvmtiThreadState* state = current_thread->jvmti_thread_state();
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*data_ptr = (state == NULL) ? NULL :
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state->env_thread_state(this)->get_agent_thread_local_storage_data();
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} else {
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// jvmti_GetThreadLocalStorage is "in native" and doesn't transition
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// the thread to _thread_in_vm. However, when the TLS for a thread
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// other than the current thread is required we need to transition
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// from native so as to resolve the jthread.
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ThreadInVMfromNative __tiv(current_thread);
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__ENTRY(jvmtiError, JvmtiEnv::GetThreadLocalStorage , current_thread)
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debug_only(VMNativeEntryWrapper __vew;)
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oop thread_oop = JNIHandles::resolve_external_guard(thread);
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if (thread_oop == NULL) {
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return JVMTI_ERROR_INVALID_THREAD;
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}
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if (!thread_oop->is_a(SystemDictionary::thread_klass())) {
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return JVMTI_ERROR_INVALID_THREAD;
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}
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JavaThread* java_thread = java_lang_Thread::thread(thread_oop);
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if (java_thread == NULL) {
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return JVMTI_ERROR_THREAD_NOT_ALIVE;
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}
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JvmtiThreadState* state = java_thread->jvmti_thread_state();
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*data_ptr = (state == NULL) ? NULL :
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state->env_thread_state(this)->get_agent_thread_local_storage_data();
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}
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return JVMTI_ERROR_NONE;
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} /* end GetThreadLocalStorage */
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//
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// Class functions
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//
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// class_count_ptr - pre-checked for NULL
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// classes_ptr - pre-checked for NULL
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jvmtiError
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JvmtiEnv::GetLoadedClasses(jint* class_count_ptr, jclass** classes_ptr) {
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return JvmtiGetLoadedClasses::getLoadedClasses(this, class_count_ptr, classes_ptr);
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} /* end GetLoadedClasses */
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// initiating_loader - NULL is a valid value, must be checked
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// class_count_ptr - pre-checked for NULL
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// classes_ptr - pre-checked for NULL
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jvmtiError
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JvmtiEnv::GetClassLoaderClasses(jobject initiating_loader, jint* class_count_ptr, jclass** classes_ptr) {
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return JvmtiGetLoadedClasses::getClassLoaderClasses(this, initiating_loader,
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class_count_ptr, classes_ptr);
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} /* end GetClassLoaderClasses */
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// k_mirror - may be primitive, this must be checked
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// is_modifiable_class_ptr - pre-checked for NULL
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jvmtiError
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JvmtiEnv::IsModifiableClass(oop k_mirror, jboolean* is_modifiable_class_ptr) {
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*is_modifiable_class_ptr = VM_RedefineClasses::is_modifiable_class(k_mirror)?
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JNI_TRUE : JNI_FALSE;
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return JVMTI_ERROR_NONE;
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} /* end IsModifiableClass */
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// class_count - pre-checked to be greater than or equal to 0
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// classes - pre-checked for NULL
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jvmtiError
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JvmtiEnv::RetransformClasses(jint class_count, const jclass* classes) {
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//TODO: add locking
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int index;
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JavaThread* current_thread = JavaThread::current();
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ResourceMark rm(current_thread);
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jvmtiClassDefinition* class_definitions =
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NEW_RESOURCE_ARRAY(jvmtiClassDefinition, class_count);
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NULL_CHECK(class_definitions, JVMTI_ERROR_OUT_OF_MEMORY);
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for (index = 0; index < class_count; index++) {
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HandleMark hm(current_thread);
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jclass jcls = classes[index];
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oop k_mirror = JNIHandles::resolve_external_guard(jcls);
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if (k_mirror == NULL) {
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return JVMTI_ERROR_INVALID_CLASS;
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}
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if (!k_mirror->is_a(SystemDictionary::class_klass())) {
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return JVMTI_ERROR_INVALID_CLASS;
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}
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if (java_lang_Class::is_primitive(k_mirror)) {
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return JVMTI_ERROR_UNMODIFIABLE_CLASS;
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}
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klassOop k_oop = java_lang_Class::as_klassOop(k_mirror);
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KlassHandle klass(current_thread, k_oop);
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jint status = klass->jvmti_class_status();
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if (status & (JVMTI_CLASS_STATUS_ERROR)) {
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return JVMTI_ERROR_INVALID_CLASS;
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}
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if (status & (JVMTI_CLASS_STATUS_ARRAY)) {
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return JVMTI_ERROR_UNMODIFIABLE_CLASS;
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}
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instanceKlassHandle ikh(current_thread, k_oop);
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if (ikh->get_cached_class_file_bytes() == NULL) {
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// not cached, we need to reconstitute the class file from VM representation
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constantPoolHandle constants(current_thread, ikh->constants());
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ObjectLocker ol(constants, current_thread); // lock constant pool while we query it
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JvmtiClassFileReconstituter reconstituter(ikh);
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if (reconstituter.get_error() != JVMTI_ERROR_NONE) {
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return reconstituter.get_error();
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}
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class_definitions[index].class_byte_count = (jint)reconstituter.class_file_size();
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class_definitions[index].class_bytes = (unsigned char*)
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reconstituter.class_file_bytes();
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} else {
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// it is cached, get it from the cache
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class_definitions[index].class_byte_count = ikh->get_cached_class_file_len();
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class_definitions[index].class_bytes = ikh->get_cached_class_file_bytes();
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}
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class_definitions[index].klass = jcls;
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}
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VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_retransform);
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VMThread::execute(&op);
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return (op.check_error());
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} /* end RetransformClasses */
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// class_count - pre-checked to be greater than or equal to 0
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// class_definitions - pre-checked for NULL
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jvmtiError
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JvmtiEnv::RedefineClasses(jint class_count, const jvmtiClassDefinition* class_definitions) {
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//TODO: add locking
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VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine);
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VMThread::execute(&op);
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return (op.check_error());
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} /* end RedefineClasses */
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//
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// Object functions
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//
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// size_ptr - pre-checked for NULL
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jvmtiError
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JvmtiEnv::GetObjectSize(jobject object, jlong* size_ptr) {
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oop mirror = JNIHandles::resolve_external_guard(object);
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NULL_CHECK(mirror, JVMTI_ERROR_INVALID_OBJECT);
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if (mirror->klass() == SystemDictionary::class_klass()) {
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if (!java_lang_Class::is_primitive(mirror)) {
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mirror = java_lang_Class::as_klassOop(mirror);
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assert(mirror != NULL, "class for non-primitive mirror must exist");
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}
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}
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*size_ptr = mirror->size() * wordSize;
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return JVMTI_ERROR_NONE;
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} /* end GetObjectSize */
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//
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// Method functions
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//
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// prefix - NULL is a valid value, must be checked
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jvmtiError
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JvmtiEnv::SetNativeMethodPrefix(const char* prefix) {
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return prefix == NULL?
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SetNativeMethodPrefixes(0, NULL) :
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SetNativeMethodPrefixes(1, (char**)&prefix);
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} /* end SetNativeMethodPrefix */
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// prefix_count - pre-checked to be greater than or equal to 0
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// prefixes - pre-checked for NULL
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jvmtiError
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JvmtiEnv::SetNativeMethodPrefixes(jint prefix_count, char** prefixes) {
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// Have to grab JVMTI thread state lock to be sure that some thread
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// isn't accessing the prefixes at the same time we are setting them.
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// No locks during VM bring-up.
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if (Threads::number_of_threads() == 0) {
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return set_native_method_prefixes(prefix_count, prefixes);
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} else {
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MutexLocker mu(JvmtiThreadState_lock);
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return set_native_method_prefixes(prefix_count, prefixes);
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}
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} /* end SetNativeMethodPrefixes */
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//
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// Event Management functions
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//
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// callbacks - NULL is a valid value, must be checked
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// size_of_callbacks - pre-checked to be greater than or equal to 0
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jvmtiError
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JvmtiEnv::SetEventCallbacks(const jvmtiEventCallbacks* callbacks, jint size_of_callbacks) {
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JvmtiEventController::set_event_callbacks(this, callbacks, size_of_callbacks);
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return JVMTI_ERROR_NONE;
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} /* end SetEventCallbacks */
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// event_thread - NULL is a valid value, must be checked
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jvmtiError
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JvmtiEnv::SetEventNotificationMode(jvmtiEventMode mode, jvmtiEvent event_type, jthread event_thread, ...) {
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JavaThread* java_thread = NULL;
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if (event_thread != NULL) {
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oop thread_oop = JNIHandles::resolve_external_guard(event_thread);
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if (thread_oop == NULL) {
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return JVMTI_ERROR_INVALID_THREAD;
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}
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if (!thread_oop->is_a(SystemDictionary::thread_klass())) {
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return JVMTI_ERROR_INVALID_THREAD;
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}
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java_thread = java_lang_Thread::thread(thread_oop);
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if (java_thread == NULL) {
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return JVMTI_ERROR_THREAD_NOT_ALIVE;
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}
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}
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// event_type must be valid
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if (!JvmtiEventController::is_valid_event_type(event_type)) {
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return JVMTI_ERROR_INVALID_EVENT_TYPE;
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}
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// global events cannot be controlled at thread level.
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if (java_thread != NULL && JvmtiEventController::is_global_event(event_type)) {
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return JVMTI_ERROR_ILLEGAL_ARGUMENT;
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}
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bool enabled = (mode == JVMTI_ENABLE);
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// assure that needed capabilities are present
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if (enabled && !JvmtiUtil::has_event_capability(event_type, get_capabilities())) {
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return JVMTI_ERROR_MUST_POSSESS_CAPABILITY;
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}
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if (event_type == JVMTI_EVENT_CLASS_FILE_LOAD_HOOK && enabled) {
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record_class_file_load_hook_enabled();
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}
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JvmtiEventController::set_user_enabled(this, java_thread, event_type, enabled);
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return JVMTI_ERROR_NONE;
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} /* end SetEventNotificationMode */
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//
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// Capability functions
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//
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// capabilities_ptr - pre-checked for NULL
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jvmtiError
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JvmtiEnv::GetPotentialCapabilities(jvmtiCapabilities* capabilities_ptr) {
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JvmtiManageCapabilities::get_potential_capabilities(get_capabilities(),
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get_prohibited_capabilities(),
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capabilities_ptr);
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return JVMTI_ERROR_NONE;
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} /* end GetPotentialCapabilities */
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// capabilities_ptr - pre-checked for NULL
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jvmtiError
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JvmtiEnv::AddCapabilities(const jvmtiCapabilities* capabilities_ptr) {
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return JvmtiManageCapabilities::add_capabilities(get_capabilities(),
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get_prohibited_capabilities(),
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capabilities_ptr,
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get_capabilities());
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} /* end AddCapabilities */
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// capabilities_ptr - pre-checked for NULL
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jvmtiError
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JvmtiEnv::RelinquishCapabilities(const jvmtiCapabilities* capabilities_ptr) {
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JvmtiManageCapabilities::relinquish_capabilities(get_capabilities(), capabilities_ptr, get_capabilities());
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return JVMTI_ERROR_NONE;
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|
390 |
} /* end RelinquishCapabilities */
|
|
391 |
|
|
392 |
|
|
393 |
// capabilities_ptr - pre-checked for NULL
|
|
394 |
jvmtiError
|
|
395 |
JvmtiEnv::GetCapabilities(jvmtiCapabilities* capabilities_ptr) {
|
|
396 |
JvmtiManageCapabilities::copy_capabilities(get_capabilities(), capabilities_ptr);
|
|
397 |
return JVMTI_ERROR_NONE;
|
|
398 |
} /* end GetCapabilities */
|
|
399 |
|
|
400 |
//
|
|
401 |
// Class Loader Search functions
|
|
402 |
//
|
|
403 |
|
|
404 |
// segment - pre-checked for NULL
|
|
405 |
jvmtiError
|
|
406 |
JvmtiEnv::AddToBootstrapClassLoaderSearch(const char* segment) {
|
|
407 |
jvmtiPhase phase = get_phase();
|
|
408 |
if (phase == JVMTI_PHASE_ONLOAD) {
|
|
409 |
Arguments::append_sysclasspath(segment);
|
|
410 |
return JVMTI_ERROR_NONE;
|
|
411 |
} else {
|
|
412 |
assert(phase == JVMTI_PHASE_LIVE, "sanity check");
|
|
413 |
|
|
414 |
// create the zip entry
|
|
415 |
ClassPathZipEntry* zip_entry = ClassLoader::create_class_path_zip_entry(segment);
|
|
416 |
if (zip_entry == NULL) {
|
|
417 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT;
|
|
418 |
}
|
|
419 |
|
|
420 |
// lock the loader
|
|
421 |
Thread* thread = Thread::current();
|
|
422 |
HandleMark hm;
|
|
423 |
Handle loader_lock = Handle(thread, SystemDictionary::system_loader_lock());
|
|
424 |
|
|
425 |
ObjectLocker ol(loader_lock, thread);
|
|
426 |
|
|
427 |
// add the jar file to the bootclasspath
|
|
428 |
if (TraceClassLoading) {
|
|
429 |
tty->print_cr("[Opened %s]", zip_entry->name());
|
|
430 |
}
|
|
431 |
ClassLoader::add_to_list(zip_entry);
|
|
432 |
return JVMTI_ERROR_NONE;
|
|
433 |
}
|
|
434 |
|
|
435 |
} /* end AddToBootstrapClassLoaderSearch */
|
|
436 |
|
|
437 |
|
|
438 |
// segment - pre-checked for NULL
|
|
439 |
jvmtiError
|
|
440 |
JvmtiEnv::AddToSystemClassLoaderSearch(const char* segment) {
|
|
441 |
jvmtiPhase phase = get_phase();
|
|
442 |
|
|
443 |
if (phase == JVMTI_PHASE_ONLOAD) {
|
|
444 |
for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
|
|
445 |
if (strcmp("java.class.path", p->key()) == 0) {
|
|
446 |
p->append_value(segment);
|
|
447 |
break;
|
|
448 |
}
|
|
449 |
}
|
|
450 |
return JVMTI_ERROR_NONE;
|
|
451 |
} else {
|
|
452 |
HandleMark hm;
|
|
453 |
|
|
454 |
assert(phase == JVMTI_PHASE_LIVE, "sanity check");
|
|
455 |
|
|
456 |
// create the zip entry (which will open the zip file and hence
|
|
457 |
// check that the segment is indeed a zip file).
|
|
458 |
ClassPathZipEntry* zip_entry = ClassLoader::create_class_path_zip_entry(segment);
|
|
459 |
if (zip_entry == NULL) {
|
|
460 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT;
|
|
461 |
}
|
|
462 |
delete zip_entry; // no longer needed
|
|
463 |
|
|
464 |
// lock the loader
|
|
465 |
Thread* THREAD = Thread::current();
|
|
466 |
Handle loader = Handle(THREAD, SystemDictionary::java_system_loader());
|
|
467 |
|
|
468 |
ObjectLocker ol(loader, THREAD);
|
|
469 |
|
|
470 |
// need the path as java.lang.String
|
|
471 |
Handle path = java_lang_String::create_from_str(segment, THREAD);
|
|
472 |
if (HAS_PENDING_EXCEPTION) {
|
|
473 |
CLEAR_PENDING_EXCEPTION;
|
|
474 |
return JVMTI_ERROR_INTERNAL;
|
|
475 |
}
|
|
476 |
|
|
477 |
instanceKlassHandle loader_ik(THREAD, loader->klass());
|
|
478 |
|
|
479 |
// Invoke the appendToClassPathForInstrumentation method - if the method
|
|
480 |
// is not found it means the loader doesn't support adding to the class path
|
|
481 |
// in the live phase.
|
|
482 |
{
|
|
483 |
JavaValue res(T_VOID);
|
|
484 |
JavaCalls::call_special(&res,
|
|
485 |
loader,
|
|
486 |
loader_ik,
|
|
487 |
vmSymbolHandles::appendToClassPathForInstrumentation_name(),
|
|
488 |
vmSymbolHandles::appendToClassPathForInstrumentation_signature(),
|
|
489 |
path,
|
|
490 |
THREAD);
|
|
491 |
if (HAS_PENDING_EXCEPTION) {
|
|
492 |
symbolOop ex_name = PENDING_EXCEPTION->klass()->klass_part()->name();
|
|
493 |
CLEAR_PENDING_EXCEPTION;
|
|
494 |
|
|
495 |
if (ex_name == vmSymbols::java_lang_NoSuchMethodError()) {
|
|
496 |
return JVMTI_ERROR_CLASS_LOADER_UNSUPPORTED;
|
|
497 |
} else {
|
|
498 |
return JVMTI_ERROR_INTERNAL;
|
|
499 |
}
|
|
500 |
}
|
|
501 |
}
|
|
502 |
|
|
503 |
return JVMTI_ERROR_NONE;
|
|
504 |
}
|
|
505 |
} /* end AddToSystemClassLoaderSearch */
|
|
506 |
|
|
507 |
//
|
|
508 |
// General functions
|
|
509 |
//
|
|
510 |
|
|
511 |
// phase_ptr - pre-checked for NULL
|
|
512 |
jvmtiError
|
|
513 |
JvmtiEnv::GetPhase(jvmtiPhase* phase_ptr) {
|
|
514 |
*phase_ptr = get_phase();
|
|
515 |
return JVMTI_ERROR_NONE;
|
|
516 |
} /* end GetPhase */
|
|
517 |
|
|
518 |
|
|
519 |
jvmtiError
|
|
520 |
JvmtiEnv::DisposeEnvironment() {
|
|
521 |
dispose();
|
|
522 |
return JVMTI_ERROR_NONE;
|
|
523 |
} /* end DisposeEnvironment */
|
|
524 |
|
|
525 |
|
|
526 |
// data - NULL is a valid value, must be checked
|
|
527 |
jvmtiError
|
|
528 |
JvmtiEnv::SetEnvironmentLocalStorage(const void* data) {
|
|
529 |
set_env_local_storage(data);
|
|
530 |
return JVMTI_ERROR_NONE;
|
|
531 |
} /* end SetEnvironmentLocalStorage */
|
|
532 |
|
|
533 |
|
|
534 |
// data_ptr - pre-checked for NULL
|
|
535 |
jvmtiError
|
|
536 |
JvmtiEnv::GetEnvironmentLocalStorage(void** data_ptr) {
|
|
537 |
*data_ptr = (void*)get_env_local_storage();
|
|
538 |
return JVMTI_ERROR_NONE;
|
|
539 |
} /* end GetEnvironmentLocalStorage */
|
|
540 |
|
|
541 |
// version_ptr - pre-checked for NULL
|
|
542 |
jvmtiError
|
|
543 |
JvmtiEnv::GetVersionNumber(jint* version_ptr) {
|
|
544 |
*version_ptr = JVMTI_VERSION;
|
|
545 |
return JVMTI_ERROR_NONE;
|
|
546 |
} /* end GetVersionNumber */
|
|
547 |
|
|
548 |
|
|
549 |
// name_ptr - pre-checked for NULL
|
|
550 |
jvmtiError
|
|
551 |
JvmtiEnv::GetErrorName(jvmtiError error, char** name_ptr) {
|
|
552 |
if (error < JVMTI_ERROR_NONE || error > JVMTI_ERROR_MAX) {
|
|
553 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT;
|
|
554 |
}
|
|
555 |
const char *name = JvmtiUtil::error_name(error);
|
|
556 |
if (name == NULL) {
|
|
557 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT;
|
|
558 |
}
|
|
559 |
size_t len = strlen(name) + 1;
|
|
560 |
jvmtiError err = allocate(len, (unsigned char**)name_ptr);
|
|
561 |
if (err == JVMTI_ERROR_NONE) {
|
|
562 |
memcpy(*name_ptr, name, len);
|
|
563 |
}
|
|
564 |
return err;
|
|
565 |
} /* end GetErrorName */
|
|
566 |
|
|
567 |
|
|
568 |
jvmtiError
|
|
569 |
JvmtiEnv::SetVerboseFlag(jvmtiVerboseFlag flag, jboolean value) {
|
|
570 |
switch (flag) {
|
|
571 |
case JVMTI_VERBOSE_OTHER:
|
|
572 |
// ignore
|
|
573 |
break;
|
|
574 |
case JVMTI_VERBOSE_CLASS:
|
|
575 |
TraceClassLoading = value != 0;
|
|
576 |
TraceClassUnloading = value != 0;
|
|
577 |
break;
|
|
578 |
case JVMTI_VERBOSE_GC:
|
|
579 |
PrintGC = value != 0;
|
|
580 |
TraceClassUnloading = value != 0;
|
|
581 |
break;
|
|
582 |
case JVMTI_VERBOSE_JNI:
|
|
583 |
PrintJNIResolving = value != 0;
|
|
584 |
break;
|
|
585 |
default:
|
|
586 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT;
|
|
587 |
};
|
|
588 |
return JVMTI_ERROR_NONE;
|
|
589 |
} /* end SetVerboseFlag */
|
|
590 |
|
|
591 |
|
|
592 |
// format_ptr - pre-checked for NULL
|
|
593 |
jvmtiError
|
|
594 |
JvmtiEnv::GetJLocationFormat(jvmtiJlocationFormat* format_ptr) {
|
|
595 |
*format_ptr = JVMTI_JLOCATION_JVMBCI;
|
|
596 |
return JVMTI_ERROR_NONE;
|
|
597 |
} /* end GetJLocationFormat */
|
|
598 |
|
|
599 |
#ifndef JVMTI_KERNEL
|
|
600 |
|
|
601 |
//
|
|
602 |
// Thread functions
|
|
603 |
//
|
|
604 |
|
|
605 |
// Threads_lock NOT held
|
|
606 |
// thread - NOT pre-checked
|
|
607 |
// thread_state_ptr - pre-checked for NULL
|
|
608 |
jvmtiError
|
|
609 |
JvmtiEnv::GetThreadState(jthread thread, jint* thread_state_ptr) {
|
|
610 |
jint state;
|
|
611 |
oop thread_oop;
|
|
612 |
JavaThread* thr;
|
|
613 |
|
|
614 |
if (thread == NULL) {
|
|
615 |
thread_oop = JavaThread::current()->threadObj();
|
|
616 |
} else {
|
|
617 |
thread_oop = JNIHandles::resolve_external_guard(thread);
|
|
618 |
}
|
|
619 |
|
|
620 |
if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass())) {
|
|
621 |
return JVMTI_ERROR_INVALID_THREAD;
|
|
622 |
}
|
|
623 |
|
|
624 |
// get most state bits
|
|
625 |
state = (jint)java_lang_Thread::get_thread_status(thread_oop);
|
|
626 |
|
|
627 |
// add more state bits
|
|
628 |
thr = java_lang_Thread::thread(thread_oop);
|
|
629 |
if (thr != NULL) {
|
|
630 |
JavaThreadState jts = thr->thread_state();
|
|
631 |
|
|
632 |
if (thr->is_being_ext_suspended()) {
|
|
633 |
state |= JVMTI_THREAD_STATE_SUSPENDED;
|
|
634 |
}
|
|
635 |
if (jts == _thread_in_native) {
|
|
636 |
state |= JVMTI_THREAD_STATE_IN_NATIVE;
|
|
637 |
}
|
|
638 |
OSThread* osThread = thr->osthread();
|
|
639 |
if (osThread != NULL && osThread->interrupted()) {
|
|
640 |
state |= JVMTI_THREAD_STATE_INTERRUPTED;
|
|
641 |
}
|
|
642 |
}
|
|
643 |
|
|
644 |
*thread_state_ptr = state;
|
|
645 |
return JVMTI_ERROR_NONE;
|
|
646 |
} /* end GetThreadState */
|
|
647 |
|
|
648 |
|
|
649 |
// thread_ptr - pre-checked for NULL
|
|
650 |
jvmtiError
|
|
651 |
JvmtiEnv::GetCurrentThread(jthread* thread_ptr) {
|
|
652 |
JavaThread* current_thread = JavaThread::current();
|
|
653 |
*thread_ptr = (jthread)JNIHandles::make_local(current_thread, current_thread->threadObj());
|
|
654 |
return JVMTI_ERROR_NONE;
|
|
655 |
} /* end GetCurrentThread */
|
|
656 |
|
|
657 |
|
|
658 |
// threads_count_ptr - pre-checked for NULL
|
|
659 |
// threads_ptr - pre-checked for NULL
|
|
660 |
jvmtiError
|
|
661 |
JvmtiEnv::GetAllThreads(jint* threads_count_ptr, jthread** threads_ptr) {
|
|
662 |
int nthreads = 0;
|
|
663 |
Handle *thread_objs = NULL;
|
|
664 |
ResourceMark rm;
|
|
665 |
HandleMark hm;
|
|
666 |
|
|
667 |
// enumerate threads (including agent threads)
|
|
668 |
ThreadsListEnumerator tle(Thread::current(), true);
|
|
669 |
nthreads = tle.num_threads();
|
|
670 |
*threads_count_ptr = nthreads;
|
|
671 |
|
|
672 |
if (nthreads == 0) {
|
|
673 |
*threads_ptr = NULL;
|
|
674 |
return JVMTI_ERROR_NONE;
|
|
675 |
}
|
|
676 |
|
|
677 |
thread_objs = NEW_RESOURCE_ARRAY(Handle, nthreads);
|
|
678 |
NULL_CHECK(thread_objs, JVMTI_ERROR_OUT_OF_MEMORY);
|
|
679 |
|
|
680 |
for (int i=0; i < nthreads; i++) {
|
|
681 |
thread_objs[i] = Handle(tle.get_threadObj(i));
|
|
682 |
}
|
|
683 |
|
|
684 |
// have to make global handles outside of Threads_lock
|
|
685 |
jthread *jthreads = new_jthreadArray(nthreads, thread_objs);
|
|
686 |
NULL_CHECK(jthreads, JVMTI_ERROR_OUT_OF_MEMORY);
|
|
687 |
|
|
688 |
*threads_ptr = jthreads;
|
|
689 |
return JVMTI_ERROR_NONE;
|
|
690 |
} /* end GetAllThreads */
|
|
691 |
|
|
692 |
|
|
693 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
694 |
// java_thread - pre-checked
|
|
695 |
jvmtiError
|
|
696 |
JvmtiEnv::SuspendThread(JavaThread* java_thread) {
|
|
697 |
// don't allow hidden thread suspend request.
|
|
698 |
if (java_thread->is_hidden_from_external_view()) {
|
|
699 |
return (JVMTI_ERROR_NONE);
|
|
700 |
}
|
|
701 |
|
|
702 |
{
|
|
703 |
MutexLockerEx ml(java_thread->SR_lock(), Mutex::_no_safepoint_check_flag);
|
|
704 |
if (java_thread->is_external_suspend()) {
|
|
705 |
// don't allow nested external suspend requests.
|
|
706 |
return (JVMTI_ERROR_THREAD_SUSPENDED);
|
|
707 |
}
|
|
708 |
if (java_thread->is_exiting()) { // thread is in the process of exiting
|
|
709 |
return (JVMTI_ERROR_THREAD_NOT_ALIVE);
|
|
710 |
}
|
|
711 |
java_thread->set_external_suspend();
|
|
712 |
}
|
|
713 |
|
|
714 |
if (!JvmtiSuspendControl::suspend(java_thread)) {
|
|
715 |
// the thread was in the process of exiting
|
|
716 |
return (JVMTI_ERROR_THREAD_NOT_ALIVE);
|
|
717 |
}
|
|
718 |
return JVMTI_ERROR_NONE;
|
|
719 |
} /* end SuspendThread */
|
|
720 |
|
|
721 |
|
|
722 |
// request_count - pre-checked to be greater than or equal to 0
|
|
723 |
// request_list - pre-checked for NULL
|
|
724 |
// results - pre-checked for NULL
|
|
725 |
jvmtiError
|
|
726 |
JvmtiEnv::SuspendThreadList(jint request_count, const jthread* request_list, jvmtiError* results) {
|
|
727 |
int needSafepoint = 0; // > 0 if we need a safepoint
|
|
728 |
for (int i = 0; i < request_count; i++) {
|
|
729 |
JavaThread *java_thread = get_JavaThread(request_list[i]);
|
|
730 |
if (java_thread == NULL) {
|
|
731 |
results[i] = JVMTI_ERROR_INVALID_THREAD;
|
|
732 |
continue;
|
|
733 |
}
|
|
734 |
// the thread has not yet run or has exited (not on threads list)
|
|
735 |
if (java_thread->threadObj() == NULL) {
|
|
736 |
results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE;
|
|
737 |
continue;
|
|
738 |
}
|
|
739 |
if (java_lang_Thread::thread(java_thread->threadObj()) == NULL) {
|
|
740 |
results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE;
|
|
741 |
continue;
|
|
742 |
}
|
|
743 |
// don't allow hidden thread suspend request.
|
|
744 |
if (java_thread->is_hidden_from_external_view()) {
|
|
745 |
results[i] = JVMTI_ERROR_NONE; // indicate successful suspend
|
|
746 |
continue;
|
|
747 |
}
|
|
748 |
|
|
749 |
{
|
|
750 |
MutexLockerEx ml(java_thread->SR_lock(), Mutex::_no_safepoint_check_flag);
|
|
751 |
if (java_thread->is_external_suspend()) {
|
|
752 |
// don't allow nested external suspend requests.
|
|
753 |
results[i] = JVMTI_ERROR_THREAD_SUSPENDED;
|
|
754 |
continue;
|
|
755 |
}
|
|
756 |
if (java_thread->is_exiting()) { // thread is in the process of exiting
|
|
757 |
results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE;
|
|
758 |
continue;
|
|
759 |
}
|
|
760 |
java_thread->set_external_suspend();
|
|
761 |
}
|
|
762 |
if (java_thread->thread_state() == _thread_in_native) {
|
|
763 |
// We need to try and suspend native threads here. Threads in
|
|
764 |
// other states will self-suspend on their next transition.
|
|
765 |
if (!JvmtiSuspendControl::suspend(java_thread)) {
|
|
766 |
// The thread was in the process of exiting. Force another
|
|
767 |
// safepoint to make sure that this thread transitions.
|
|
768 |
needSafepoint++;
|
|
769 |
results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE;
|
|
770 |
continue;
|
|
771 |
}
|
|
772 |
} else {
|
|
773 |
needSafepoint++;
|
|
774 |
}
|
|
775 |
results[i] = JVMTI_ERROR_NONE; // indicate successful suspend
|
|
776 |
}
|
|
777 |
if (needSafepoint > 0) {
|
|
778 |
VM_ForceSafepoint vfs;
|
|
779 |
VMThread::execute(&vfs);
|
|
780 |
}
|
|
781 |
// per-thread suspend results returned via results parameter
|
|
782 |
return JVMTI_ERROR_NONE;
|
|
783 |
} /* end SuspendThreadList */
|
|
784 |
|
|
785 |
|
|
786 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
787 |
// java_thread - pre-checked
|
|
788 |
jvmtiError
|
|
789 |
JvmtiEnv::ResumeThread(JavaThread* java_thread) {
|
|
790 |
// don't allow hidden thread resume request.
|
|
791 |
if (java_thread->is_hidden_from_external_view()) {
|
|
792 |
return JVMTI_ERROR_NONE;
|
|
793 |
}
|
|
794 |
|
|
795 |
if (!java_thread->is_being_ext_suspended()) {
|
|
796 |
return JVMTI_ERROR_THREAD_NOT_SUSPENDED;
|
|
797 |
}
|
|
798 |
|
|
799 |
if (!JvmtiSuspendControl::resume(java_thread)) {
|
|
800 |
return JVMTI_ERROR_INTERNAL;
|
|
801 |
}
|
|
802 |
return JVMTI_ERROR_NONE;
|
|
803 |
} /* end ResumeThread */
|
|
804 |
|
|
805 |
|
|
806 |
// request_count - pre-checked to be greater than or equal to 0
|
|
807 |
// request_list - pre-checked for NULL
|
|
808 |
// results - pre-checked for NULL
|
|
809 |
jvmtiError
|
|
810 |
JvmtiEnv::ResumeThreadList(jint request_count, const jthread* request_list, jvmtiError* results) {
|
|
811 |
for (int i = 0; i < request_count; i++) {
|
|
812 |
JavaThread *java_thread = get_JavaThread(request_list[i]);
|
|
813 |
if (java_thread == NULL) {
|
|
814 |
results[i] = JVMTI_ERROR_INVALID_THREAD;
|
|
815 |
continue;
|
|
816 |
}
|
|
817 |
// don't allow hidden thread resume request.
|
|
818 |
if (java_thread->is_hidden_from_external_view()) {
|
|
819 |
results[i] = JVMTI_ERROR_NONE; // indicate successful resume
|
|
820 |
continue;
|
|
821 |
}
|
|
822 |
if (!java_thread->is_being_ext_suspended()) {
|
|
823 |
results[i] = JVMTI_ERROR_THREAD_NOT_SUSPENDED;
|
|
824 |
continue;
|
|
825 |
}
|
|
826 |
|
|
827 |
if (!JvmtiSuspendControl::resume(java_thread)) {
|
|
828 |
results[i] = JVMTI_ERROR_INTERNAL;
|
|
829 |
continue;
|
|
830 |
}
|
|
831 |
|
|
832 |
results[i] = JVMTI_ERROR_NONE; // indicate successful suspend
|
|
833 |
}
|
|
834 |
// per-thread resume results returned via results parameter
|
|
835 |
return JVMTI_ERROR_NONE;
|
|
836 |
} /* end ResumeThreadList */
|
|
837 |
|
|
838 |
|
|
839 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
840 |
// java_thread - pre-checked
|
|
841 |
jvmtiError
|
|
842 |
JvmtiEnv::StopThread(JavaThread* java_thread, jobject exception) {
|
|
843 |
oop e = JNIHandles::resolve_external_guard(exception);
|
|
844 |
NULL_CHECK(e, JVMTI_ERROR_NULL_POINTER);
|
|
845 |
|
|
846 |
JavaThread::send_async_exception(java_thread->threadObj(), e);
|
|
847 |
|
|
848 |
return JVMTI_ERROR_NONE;
|
|
849 |
|
|
850 |
} /* end StopThread */
|
|
851 |
|
|
852 |
|
|
853 |
// Threads_lock NOT held
|
|
854 |
// thread - NOT pre-checked
|
|
855 |
jvmtiError
|
|
856 |
JvmtiEnv::InterruptThread(jthread thread) {
|
|
857 |
oop thread_oop = JNIHandles::resolve_external_guard(thread);
|
|
858 |
if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass()))
|
|
859 |
return JVMTI_ERROR_INVALID_THREAD;
|
|
860 |
|
|
861 |
JavaThread* current_thread = JavaThread::current();
|
|
862 |
|
|
863 |
// Todo: this is a duplicate of JVM_Interrupt; share code in future
|
|
864 |
// Ensure that the C++ Thread and OSThread structures aren't freed before we operate
|
|
865 |
MutexLockerEx ml(current_thread->threadObj() == thread_oop ? NULL : Threads_lock);
|
|
866 |
// We need to re-resolve the java_thread, since a GC might have happened during the
|
|
867 |
// acquire of the lock
|
|
868 |
|
|
869 |
JavaThread* java_thread = java_lang_Thread::thread(JNIHandles::resolve_external_guard(thread));
|
|
870 |
NULL_CHECK(java_thread, JVMTI_ERROR_THREAD_NOT_ALIVE);
|
|
871 |
|
|
872 |
Thread::interrupt(java_thread);
|
|
873 |
|
|
874 |
return JVMTI_ERROR_NONE;
|
|
875 |
} /* end InterruptThread */
|
|
876 |
|
|
877 |
|
|
878 |
// Threads_lock NOT held
|
|
879 |
// thread - NOT pre-checked
|
|
880 |
// info_ptr - pre-checked for NULL
|
|
881 |
jvmtiError
|
|
882 |
JvmtiEnv::GetThreadInfo(jthread thread, jvmtiThreadInfo* info_ptr) {
|
|
883 |
ResourceMark rm;
|
|
884 |
HandleMark hm;
|
|
885 |
|
|
886 |
JavaThread* current_thread = JavaThread::current();
|
|
887 |
|
|
888 |
// if thread is NULL the current thread is used
|
|
889 |
oop thread_oop;
|
|
890 |
if (thread == NULL) {
|
|
891 |
thread_oop = current_thread->threadObj();
|
|
892 |
} else {
|
|
893 |
thread_oop = JNIHandles::resolve_external_guard(thread);
|
|
894 |
}
|
|
895 |
if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass()))
|
|
896 |
return JVMTI_ERROR_INVALID_THREAD;
|
|
897 |
|
|
898 |
Handle thread_obj(current_thread, thread_oop);
|
|
899 |
typeArrayHandle name;
|
|
900 |
ThreadPriority priority;
|
|
901 |
Handle thread_group;
|
|
902 |
Handle context_class_loader;
|
|
903 |
bool is_daemon;
|
|
904 |
|
|
905 |
{ MutexLocker mu(Threads_lock);
|
|
906 |
|
|
907 |
name = typeArrayHandle(current_thread, java_lang_Thread::name(thread_obj()));
|
|
908 |
priority = java_lang_Thread::priority(thread_obj());
|
|
909 |
thread_group = Handle(current_thread, java_lang_Thread::threadGroup(thread_obj()));
|
|
910 |
is_daemon = java_lang_Thread::is_daemon(thread_obj());
|
|
911 |
|
|
912 |
oop loader = java_lang_Thread::context_class_loader(thread_obj());
|
|
913 |
context_class_loader = Handle(current_thread, loader);
|
|
914 |
}
|
|
915 |
{ const char *n;
|
|
916 |
|
|
917 |
if (name() != NULL) {
|
|
918 |
n = UNICODE::as_utf8((jchar*) name->base(T_CHAR), name->length());
|
|
919 |
} else {
|
|
920 |
n = UNICODE::as_utf8(NULL, 0);
|
|
921 |
}
|
|
922 |
|
|
923 |
info_ptr->name = (char *) jvmtiMalloc(strlen(n)+1);
|
|
924 |
if (info_ptr->name == NULL)
|
|
925 |
return JVMTI_ERROR_OUT_OF_MEMORY;
|
|
926 |
|
|
927 |
strcpy(info_ptr->name, n);
|
|
928 |
}
|
|
929 |
info_ptr->is_daemon = is_daemon;
|
|
930 |
info_ptr->priority = priority;
|
|
931 |
|
|
932 |
info_ptr->context_class_loader = (context_class_loader.is_null()) ? NULL :
|
|
933 |
jni_reference(context_class_loader);
|
|
934 |
info_ptr->thread_group = jni_reference(thread_group);
|
|
935 |
|
|
936 |
return JVMTI_ERROR_NONE;
|
|
937 |
} /* end GetThreadInfo */
|
|
938 |
|
|
939 |
|
|
940 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
941 |
// java_thread - pre-checked
|
|
942 |
// owned_monitor_count_ptr - pre-checked for NULL
|
|
943 |
// owned_monitors_ptr - pre-checked for NULL
|
|
944 |
jvmtiError
|
|
945 |
JvmtiEnv::GetOwnedMonitorInfo(JavaThread* java_thread, jint* owned_monitor_count_ptr, jobject** owned_monitors_ptr) {
|
|
946 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
947 |
JavaThread* calling_thread = JavaThread::current();
|
|
948 |
|
|
949 |
// growable array of jvmti monitors info on the C-heap
|
|
950 |
GrowableArray<jvmtiMonitorStackDepthInfo*> *owned_monitors_list =
|
|
951 |
new (ResourceObj::C_HEAP) GrowableArray<jvmtiMonitorStackDepthInfo*>(1, true);
|
|
952 |
|
|
953 |
uint32_t debug_bits = 0;
|
|
954 |
if (is_thread_fully_suspended(java_thread, true, &debug_bits)) {
|
|
955 |
err = get_owned_monitors(calling_thread, java_thread, owned_monitors_list);
|
|
956 |
} else {
|
|
957 |
// JVMTI get monitors info at safepoint. Do not require target thread to
|
|
958 |
// be suspended.
|
|
959 |
VM_GetOwnedMonitorInfo op(this, calling_thread, java_thread, owned_monitors_list);
|
|
960 |
VMThread::execute(&op);
|
|
961 |
err = op.result();
|
|
962 |
}
|
|
963 |
jint owned_monitor_count = owned_monitors_list->length();
|
|
964 |
if (err == JVMTI_ERROR_NONE) {
|
|
965 |
if ((err = allocate(owned_monitor_count * sizeof(jobject *),
|
|
966 |
(unsigned char**)owned_monitors_ptr)) == JVMTI_ERROR_NONE) {
|
|
967 |
// copy into the returned array
|
|
968 |
for (int i = 0; i < owned_monitor_count; i++) {
|
|
969 |
(*owned_monitors_ptr)[i] =
|
|
970 |
((jvmtiMonitorStackDepthInfo*)owned_monitors_list->at(i))->monitor;
|
|
971 |
}
|
|
972 |
*owned_monitor_count_ptr = owned_monitor_count;
|
|
973 |
}
|
|
974 |
}
|
|
975 |
// clean up.
|
|
976 |
for (int i = 0; i < owned_monitor_count; i++) {
|
|
977 |
deallocate((unsigned char*)owned_monitors_list->at(i));
|
|
978 |
}
|
|
979 |
delete owned_monitors_list;
|
|
980 |
|
|
981 |
return err;
|
|
982 |
} /* end GetOwnedMonitorInfo */
|
|
983 |
|
|
984 |
|
|
985 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
986 |
// java_thread - pre-checked
|
|
987 |
// monitor_info_count_ptr - pre-checked for NULL
|
|
988 |
// monitor_info_ptr - pre-checked for NULL
|
|
989 |
jvmtiError
|
|
990 |
JvmtiEnv::GetOwnedMonitorStackDepthInfo(JavaThread* java_thread, jint* monitor_info_count_ptr, jvmtiMonitorStackDepthInfo** monitor_info_ptr) {
|
|
991 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
992 |
JavaThread* calling_thread = JavaThread::current();
|
|
993 |
|
|
994 |
// growable array of jvmti monitors info on the C-heap
|
|
995 |
GrowableArray<jvmtiMonitorStackDepthInfo*> *owned_monitors_list =
|
|
996 |
new (ResourceObj::C_HEAP) GrowableArray<jvmtiMonitorStackDepthInfo*>(1, true);
|
|
997 |
|
|
998 |
uint32_t debug_bits = 0;
|
|
999 |
if (is_thread_fully_suspended(java_thread, true, &debug_bits)) {
|
|
1000 |
err = get_owned_monitors(calling_thread, java_thread, owned_monitors_list);
|
|
1001 |
} else {
|
|
1002 |
// JVMTI get owned monitors info at safepoint. Do not require target thread to
|
|
1003 |
// be suspended.
|
|
1004 |
VM_GetOwnedMonitorInfo op(this, calling_thread, java_thread, owned_monitors_list);
|
|
1005 |
VMThread::execute(&op);
|
|
1006 |
err = op.result();
|
|
1007 |
}
|
|
1008 |
|
|
1009 |
jint owned_monitor_count = owned_monitors_list->length();
|
|
1010 |
if (err == JVMTI_ERROR_NONE) {
|
|
1011 |
if ((err = allocate(owned_monitor_count * sizeof(jvmtiMonitorStackDepthInfo),
|
|
1012 |
(unsigned char**)monitor_info_ptr)) == JVMTI_ERROR_NONE) {
|
|
1013 |
// copy to output array.
|
|
1014 |
for (int i = 0; i < owned_monitor_count; i++) {
|
|
1015 |
(*monitor_info_ptr)[i].monitor =
|
|
1016 |
((jvmtiMonitorStackDepthInfo*)owned_monitors_list->at(i))->monitor;
|
|
1017 |
(*monitor_info_ptr)[i].stack_depth =
|
|
1018 |
((jvmtiMonitorStackDepthInfo*)owned_monitors_list->at(i))->stack_depth;
|
|
1019 |
}
|
|
1020 |
}
|
|
1021 |
*monitor_info_count_ptr = owned_monitor_count;
|
|
1022 |
}
|
|
1023 |
|
|
1024 |
// clean up.
|
|
1025 |
for (int i = 0; i < owned_monitor_count; i++) {
|
|
1026 |
deallocate((unsigned char*)owned_monitors_list->at(i));
|
|
1027 |
}
|
|
1028 |
delete owned_monitors_list;
|
|
1029 |
|
|
1030 |
return err;
|
|
1031 |
} /* end GetOwnedMonitorStackDepthInfo */
|
|
1032 |
|
|
1033 |
|
|
1034 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1035 |
// java_thread - pre-checked
|
|
1036 |
// monitor_ptr - pre-checked for NULL
|
|
1037 |
jvmtiError
|
|
1038 |
JvmtiEnv::GetCurrentContendedMonitor(JavaThread* java_thread, jobject* monitor_ptr) {
|
|
1039 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
1040 |
uint32_t debug_bits = 0;
|
|
1041 |
JavaThread* calling_thread = JavaThread::current();
|
|
1042 |
if (is_thread_fully_suspended(java_thread, true, &debug_bits)) {
|
|
1043 |
err = get_current_contended_monitor(calling_thread, java_thread, monitor_ptr);
|
|
1044 |
} else {
|
|
1045 |
// get contended monitor information at safepoint.
|
|
1046 |
VM_GetCurrentContendedMonitor op(this, calling_thread, java_thread, monitor_ptr);
|
|
1047 |
VMThread::execute(&op);
|
|
1048 |
err = op.result();
|
|
1049 |
}
|
|
1050 |
return err;
|
|
1051 |
} /* end GetCurrentContendedMonitor */
|
|
1052 |
|
|
1053 |
|
|
1054 |
// Threads_lock NOT held
|
|
1055 |
// thread - NOT pre-checked
|
|
1056 |
// proc - pre-checked for NULL
|
|
1057 |
// arg - NULL is a valid value, must be checked
|
|
1058 |
jvmtiError
|
|
1059 |
JvmtiEnv::RunAgentThread(jthread thread, jvmtiStartFunction proc, const void* arg, jint priority) {
|
|
1060 |
oop thread_oop = JNIHandles::resolve_external_guard(thread);
|
|
1061 |
if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::thread_klass())) {
|
|
1062 |
return JVMTI_ERROR_INVALID_THREAD;
|
|
1063 |
}
|
|
1064 |
if (priority < JVMTI_THREAD_MIN_PRIORITY || priority > JVMTI_THREAD_MAX_PRIORITY) {
|
|
1065 |
return JVMTI_ERROR_INVALID_PRIORITY;
|
|
1066 |
}
|
|
1067 |
|
|
1068 |
//Thread-self
|
|
1069 |
JavaThread* current_thread = JavaThread::current();
|
|
1070 |
|
|
1071 |
Handle thread_hndl(current_thread, thread_oop);
|
|
1072 |
{
|
|
1073 |
MutexLocker mu(Threads_lock); // grab Threads_lock
|
|
1074 |
|
|
1075 |
JvmtiAgentThread *new_thread = new JvmtiAgentThread(this, proc, arg);
|
|
1076 |
|
|
1077 |
// At this point it may be possible that no osthread was created for the
|
|
1078 |
// JavaThread due to lack of memory.
|
|
1079 |
if (new_thread == NULL || new_thread->osthread() == NULL) {
|
|
1080 |
if (new_thread) delete new_thread;
|
|
1081 |
return JVMTI_ERROR_OUT_OF_MEMORY;
|
|
1082 |
}
|
|
1083 |
|
|
1084 |
java_lang_Thread::set_thread(thread_hndl(), new_thread);
|
|
1085 |
java_lang_Thread::set_priority(thread_hndl(), (ThreadPriority)priority);
|
|
1086 |
java_lang_Thread::set_daemon(thread_hndl());
|
|
1087 |
|
|
1088 |
new_thread->set_threadObj(thread_hndl());
|
|
1089 |
Threads::add(new_thread);
|
|
1090 |
Thread::start(new_thread);
|
|
1091 |
} // unlock Threads_lock
|
|
1092 |
|
|
1093 |
return JVMTI_ERROR_NONE;
|
|
1094 |
} /* end RunAgentThread */
|
|
1095 |
|
|
1096 |
//
|
|
1097 |
// Thread Group functions
|
|
1098 |
//
|
|
1099 |
|
|
1100 |
// group_count_ptr - pre-checked for NULL
|
|
1101 |
// groups_ptr - pre-checked for NULL
|
|
1102 |
jvmtiError
|
|
1103 |
JvmtiEnv::GetTopThreadGroups(jint* group_count_ptr, jthreadGroup** groups_ptr) {
|
|
1104 |
JavaThread* current_thread = JavaThread::current();
|
|
1105 |
|
|
1106 |
// Only one top level thread group now.
|
|
1107 |
*group_count_ptr = 1;
|
|
1108 |
|
|
1109 |
// Allocate memory to store global-refs to the thread groups.
|
|
1110 |
// Assume this area is freed by caller.
|
|
1111 |
*groups_ptr = (jthreadGroup *) jvmtiMalloc((sizeof(jthreadGroup)) * (*group_count_ptr));
|
|
1112 |
|
|
1113 |
NULL_CHECK(*groups_ptr, JVMTI_ERROR_OUT_OF_MEMORY);
|
|
1114 |
|
|
1115 |
// Convert oop to Handle, then convert Handle to global-ref.
|
|
1116 |
{
|
|
1117 |
HandleMark hm(current_thread);
|
|
1118 |
Handle system_thread_group(current_thread, Universe::system_thread_group());
|
|
1119 |
*groups_ptr[0] = jni_reference(system_thread_group);
|
|
1120 |
}
|
|
1121 |
|
|
1122 |
return JVMTI_ERROR_NONE;
|
|
1123 |
} /* end GetTopThreadGroups */
|
|
1124 |
|
|
1125 |
|
|
1126 |
// info_ptr - pre-checked for NULL
|
|
1127 |
jvmtiError
|
|
1128 |
JvmtiEnv::GetThreadGroupInfo(jthreadGroup group, jvmtiThreadGroupInfo* info_ptr) {
|
|
1129 |
ResourceMark rm;
|
|
1130 |
HandleMark hm;
|
|
1131 |
|
|
1132 |
JavaThread* current_thread = JavaThread::current();
|
|
1133 |
|
|
1134 |
Handle group_obj (current_thread, JNIHandles::resolve_external_guard(group));
|
|
1135 |
NULL_CHECK(group_obj(), JVMTI_ERROR_INVALID_THREAD_GROUP);
|
|
1136 |
|
|
1137 |
typeArrayHandle name;
|
|
1138 |
Handle parent_group;
|
|
1139 |
bool is_daemon;
|
|
1140 |
ThreadPriority max_priority;
|
|
1141 |
|
|
1142 |
{ MutexLocker mu(Threads_lock);
|
|
1143 |
|
|
1144 |
name = typeArrayHandle(current_thread,
|
|
1145 |
java_lang_ThreadGroup::name(group_obj()));
|
|
1146 |
parent_group = Handle(current_thread, java_lang_ThreadGroup::parent(group_obj()));
|
|
1147 |
is_daemon = java_lang_ThreadGroup::is_daemon(group_obj());
|
|
1148 |
max_priority = java_lang_ThreadGroup::maxPriority(group_obj());
|
|
1149 |
}
|
|
1150 |
|
|
1151 |
info_ptr->is_daemon = is_daemon;
|
|
1152 |
info_ptr->max_priority = max_priority;
|
|
1153 |
info_ptr->parent = jni_reference(parent_group);
|
|
1154 |
|
|
1155 |
if (name() != NULL) {
|
|
1156 |
const char* n = UNICODE::as_utf8((jchar*) name->base(T_CHAR), name->length());
|
|
1157 |
info_ptr->name = (char *)jvmtiMalloc(strlen(n)+1);
|
|
1158 |
NULL_CHECK(info_ptr->name, JVMTI_ERROR_OUT_OF_MEMORY);
|
|
1159 |
strcpy(info_ptr->name, n);
|
|
1160 |
} else {
|
|
1161 |
info_ptr->name = NULL;
|
|
1162 |
}
|
|
1163 |
|
|
1164 |
return JVMTI_ERROR_NONE;
|
|
1165 |
} /* end GetThreadGroupInfo */
|
|
1166 |
|
|
1167 |
|
|
1168 |
// thread_count_ptr - pre-checked for NULL
|
|
1169 |
// threads_ptr - pre-checked for NULL
|
|
1170 |
// group_count_ptr - pre-checked for NULL
|
|
1171 |
// groups_ptr - pre-checked for NULL
|
|
1172 |
jvmtiError
|
|
1173 |
JvmtiEnv::GetThreadGroupChildren(jthreadGroup group, jint* thread_count_ptr, jthread** threads_ptr, jint* group_count_ptr, jthreadGroup** groups_ptr) {
|
|
1174 |
JavaThread* current_thread = JavaThread::current();
|
|
1175 |
oop group_obj = (oop) JNIHandles::resolve_external_guard(group);
|
|
1176 |
NULL_CHECK(group_obj, JVMTI_ERROR_INVALID_THREAD_GROUP);
|
|
1177 |
|
|
1178 |
Handle *thread_objs = NULL;
|
|
1179 |
Handle *group_objs = NULL;
|
|
1180 |
int nthreads = 0;
|
|
1181 |
int ngroups = 0;
|
|
1182 |
int hidden_threads = 0;
|
|
1183 |
|
|
1184 |
ResourceMark rm;
|
|
1185 |
HandleMark hm;
|
|
1186 |
|
|
1187 |
Handle group_hdl(current_thread, group_obj);
|
|
1188 |
|
|
1189 |
{ MutexLocker mu(Threads_lock);
|
|
1190 |
|
|
1191 |
nthreads = java_lang_ThreadGroup::nthreads(group_hdl());
|
|
1192 |
ngroups = java_lang_ThreadGroup::ngroups(group_hdl());
|
|
1193 |
|
|
1194 |
if (nthreads > 0) {
|
|
1195 |
objArrayOop threads = java_lang_ThreadGroup::threads(group_hdl());
|
|
1196 |
assert(nthreads <= threads->length(), "too many threads");
|
|
1197 |
thread_objs = NEW_RESOURCE_ARRAY(Handle,nthreads);
|
|
1198 |
for (int i=0, j=0; i<nthreads; i++) {
|
|
1199 |
oop thread_obj = threads->obj_at(i);
|
|
1200 |
assert(thread_obj != NULL, "thread_obj is NULL");
|
|
1201 |
JavaThread *javathread = java_lang_Thread::thread(thread_obj);
|
|
1202 |
// Filter out hidden java threads.
|
|
1203 |
if (javathread != NULL && javathread->is_hidden_from_external_view()) {
|
|
1204 |
hidden_threads++;
|
|
1205 |
continue;
|
|
1206 |
}
|
|
1207 |
thread_objs[j++] = Handle(current_thread, thread_obj);
|
|
1208 |
}
|
|
1209 |
nthreads -= hidden_threads;
|
|
1210 |
}
|
|
1211 |
if (ngroups > 0) {
|
|
1212 |
objArrayOop groups = java_lang_ThreadGroup::groups(group_hdl());
|
|
1213 |
assert(ngroups <= groups->length(), "too many threads");
|
|
1214 |
group_objs = NEW_RESOURCE_ARRAY(Handle,ngroups);
|
|
1215 |
for (int i=0; i<ngroups; i++) {
|
|
1216 |
oop group_obj = groups->obj_at(i);
|
|
1217 |
assert(group_obj != NULL, "group_obj != NULL");
|
|
1218 |
group_objs[i] = Handle(current_thread, group_obj);
|
|
1219 |
}
|
|
1220 |
}
|
|
1221 |
}
|
|
1222 |
|
|
1223 |
// have to make global handles outside of Threads_lock
|
|
1224 |
*group_count_ptr = ngroups;
|
|
1225 |
*thread_count_ptr = nthreads;
|
|
1226 |
*threads_ptr = new_jthreadArray(nthreads, thread_objs);
|
|
1227 |
*groups_ptr = new_jthreadGroupArray(ngroups, group_objs);
|
|
1228 |
if ((nthreads > 0) && (*threads_ptr == NULL)) {
|
|
1229 |
return JVMTI_ERROR_OUT_OF_MEMORY;
|
|
1230 |
}
|
|
1231 |
if ((ngroups > 0) && (*groups_ptr == NULL)) {
|
|
1232 |
return JVMTI_ERROR_OUT_OF_MEMORY;
|
|
1233 |
}
|
|
1234 |
|
|
1235 |
return JVMTI_ERROR_NONE;
|
|
1236 |
} /* end GetThreadGroupChildren */
|
|
1237 |
|
|
1238 |
|
|
1239 |
//
|
|
1240 |
// Stack Frame functions
|
|
1241 |
//
|
|
1242 |
|
|
1243 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1244 |
// java_thread - pre-checked
|
|
1245 |
// max_frame_count - pre-checked to be greater than or equal to 0
|
|
1246 |
// frame_buffer - pre-checked for NULL
|
|
1247 |
// count_ptr - pre-checked for NULL
|
|
1248 |
jvmtiError
|
|
1249 |
JvmtiEnv::GetStackTrace(JavaThread* java_thread, jint start_depth, jint max_frame_count, jvmtiFrameInfo* frame_buffer, jint* count_ptr) {
|
|
1250 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
1251 |
uint32_t debug_bits = 0;
|
|
1252 |
if (is_thread_fully_suspended(java_thread, true, &debug_bits)) {
|
|
1253 |
err = get_stack_trace(java_thread, start_depth, max_frame_count, frame_buffer, count_ptr);
|
|
1254 |
} else {
|
|
1255 |
// JVMTI get stack trace at safepoint. Do not require target thread to
|
|
1256 |
// be suspended.
|
|
1257 |
VM_GetStackTrace op(this, java_thread, start_depth, max_frame_count, frame_buffer, count_ptr);
|
|
1258 |
VMThread::execute(&op);
|
|
1259 |
err = op.result();
|
|
1260 |
}
|
|
1261 |
|
|
1262 |
return err;
|
|
1263 |
} /* end GetStackTrace */
|
|
1264 |
|
|
1265 |
|
|
1266 |
// max_frame_count - pre-checked to be greater than or equal to 0
|
|
1267 |
// stack_info_ptr - pre-checked for NULL
|
|
1268 |
// thread_count_ptr - pre-checked for NULL
|
|
1269 |
jvmtiError
|
|
1270 |
JvmtiEnv::GetAllStackTraces(jint max_frame_count, jvmtiStackInfo** stack_info_ptr, jint* thread_count_ptr) {
|
|
1271 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
1272 |
JavaThread* calling_thread = JavaThread::current();
|
|
1273 |
|
|
1274 |
// JVMTI get stack traces at safepoint.
|
|
1275 |
VM_GetAllStackTraces op(this, calling_thread, max_frame_count);
|
|
1276 |
VMThread::execute(&op);
|
|
1277 |
*thread_count_ptr = op.final_thread_count();
|
|
1278 |
*stack_info_ptr = op.stack_info();
|
|
1279 |
err = op.result();
|
|
1280 |
return err;
|
|
1281 |
} /* end GetAllStackTraces */
|
|
1282 |
|
|
1283 |
|
|
1284 |
// thread_count - pre-checked to be greater than or equal to 0
|
|
1285 |
// thread_list - pre-checked for NULL
|
|
1286 |
// max_frame_count - pre-checked to be greater than or equal to 0
|
|
1287 |
// stack_info_ptr - pre-checked for NULL
|
|
1288 |
jvmtiError
|
|
1289 |
JvmtiEnv::GetThreadListStackTraces(jint thread_count, const jthread* thread_list, jint max_frame_count, jvmtiStackInfo** stack_info_ptr) {
|
|
1290 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
1291 |
// JVMTI get stack traces at safepoint.
|
|
1292 |
VM_GetThreadListStackTraces op(this, thread_count, thread_list, max_frame_count);
|
|
1293 |
VMThread::execute(&op);
|
|
1294 |
err = op.result();
|
|
1295 |
if (err == JVMTI_ERROR_NONE) {
|
|
1296 |
*stack_info_ptr = op.stack_info();
|
|
1297 |
}
|
|
1298 |
return err;
|
|
1299 |
} /* end GetThreadListStackTraces */
|
|
1300 |
|
|
1301 |
|
|
1302 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1303 |
// java_thread - pre-checked
|
|
1304 |
// count_ptr - pre-checked for NULL
|
|
1305 |
jvmtiError
|
|
1306 |
JvmtiEnv::GetFrameCount(JavaThread* java_thread, jint* count_ptr) {
|
|
1307 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
1308 |
|
|
1309 |
// retrieve or create JvmtiThreadState.
|
|
1310 |
JvmtiThreadState* state = JvmtiThreadState::state_for(java_thread);
|
|
1311 |
uint32_t debug_bits = 0;
|
|
1312 |
if (is_thread_fully_suspended(java_thread, true, &debug_bits)) {
|
|
1313 |
err = get_frame_count(state, count_ptr);
|
|
1314 |
} else {
|
|
1315 |
// get java stack frame count at safepoint.
|
|
1316 |
VM_GetFrameCount op(this, state, count_ptr);
|
|
1317 |
VMThread::execute(&op);
|
|
1318 |
err = op.result();
|
|
1319 |
}
|
|
1320 |
return err;
|
|
1321 |
} /* end GetFrameCount */
|
|
1322 |
|
|
1323 |
|
|
1324 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1325 |
// java_thread - pre-checked
|
|
1326 |
jvmtiError
|
|
1327 |
JvmtiEnv::PopFrame(JavaThread* java_thread) {
|
|
1328 |
JavaThread* current_thread = JavaThread::current();
|
|
1329 |
HandleMark hm(current_thread);
|
|
1330 |
uint32_t debug_bits = 0;
|
|
1331 |
|
|
1332 |
// Check if java_thread is fully suspended
|
|
1333 |
if (!is_thread_fully_suspended(java_thread, true /* wait for suspend completion */, &debug_bits)) {
|
|
1334 |
return JVMTI_ERROR_THREAD_NOT_SUSPENDED;
|
|
1335 |
}
|
|
1336 |
// Check to see if a PopFrame was already in progress
|
|
1337 |
if (java_thread->popframe_condition() != JavaThread::popframe_inactive) {
|
|
1338 |
// Probably possible for JVMTI clients to trigger this, but the
|
|
1339 |
// JPDA backend shouldn't allow this to happen
|
|
1340 |
return JVMTI_ERROR_INTERNAL;
|
|
1341 |
}
|
|
1342 |
|
|
1343 |
{
|
|
1344 |
// Was workaround bug
|
|
1345 |
// 4812902: popFrame hangs if the method is waiting at a synchronize
|
|
1346 |
// Catch this condition and return an error to avoid hanging.
|
|
1347 |
// Now JVMTI spec allows an implementation to bail out with an opaque frame error.
|
|
1348 |
OSThread* osThread = java_thread->osthread();
|
|
1349 |
if (osThread->get_state() == MONITOR_WAIT) {
|
|
1350 |
return JVMTI_ERROR_OPAQUE_FRAME;
|
|
1351 |
}
|
|
1352 |
}
|
|
1353 |
|
|
1354 |
{
|
|
1355 |
ResourceMark rm(current_thread);
|
|
1356 |
// Check if there are more than one Java frame in this thread, that the top two frames
|
|
1357 |
// are Java (not native) frames, and that there is no intervening VM frame
|
|
1358 |
int frame_count = 0;
|
|
1359 |
bool is_interpreted[2];
|
|
1360 |
intptr_t *frame_sp[2];
|
|
1361 |
// The 2-nd arg of constructor is needed to stop iterating at java entry frame.
|
|
1362 |
for (vframeStream vfs(java_thread, true); !vfs.at_end(); vfs.next()) {
|
|
1363 |
methodHandle mh(current_thread, vfs.method());
|
|
1364 |
if (mh->is_native()) return(JVMTI_ERROR_OPAQUE_FRAME);
|
|
1365 |
is_interpreted[frame_count] = vfs.is_interpreted_frame();
|
|
1366 |
frame_sp[frame_count] = vfs.frame_id();
|
|
1367 |
if (++frame_count > 1) break;
|
|
1368 |
}
|
|
1369 |
if (frame_count < 2) {
|
|
1370 |
// We haven't found two adjacent non-native Java frames on the top.
|
|
1371 |
// There can be two situations here:
|
|
1372 |
// 1. There are no more java frames
|
|
1373 |
// 2. Two top java frames are separated by non-java native frames
|
|
1374 |
if(vframeFor(java_thread, 1) == NULL) {
|
|
1375 |
return JVMTI_ERROR_NO_MORE_FRAMES;
|
|
1376 |
} else {
|
|
1377 |
// Intervening non-java native or VM frames separate java frames.
|
|
1378 |
// Current implementation does not support this. See bug #5031735.
|
|
1379 |
// In theory it is possible to pop frames in such cases.
|
|
1380 |
return JVMTI_ERROR_OPAQUE_FRAME;
|
|
1381 |
}
|
|
1382 |
}
|
|
1383 |
|
|
1384 |
// If any of the top 2 frames is a compiled one, need to deoptimize it
|
|
1385 |
for (int i = 0; i < 2; i++) {
|
|
1386 |
if (!is_interpreted[i]) {
|
|
1387 |
VM_DeoptimizeFrame op(java_thread, frame_sp[i]);
|
|
1388 |
VMThread::execute(&op);
|
|
1389 |
}
|
|
1390 |
}
|
|
1391 |
|
|
1392 |
// Update the thread state to reflect that the top frame is popped
|
|
1393 |
// so that cur_stack_depth is maintained properly and all frameIDs
|
|
1394 |
// are invalidated.
|
|
1395 |
// The current frame will be popped later when the suspended thread
|
|
1396 |
// is resumed and right before returning from VM to Java.
|
|
1397 |
// (see call_VM_base() in assembler_<cpu>.cpp).
|
|
1398 |
|
|
1399 |
// It's fine to update the thread state here because no JVMTI events
|
|
1400 |
// shall be posted for this PopFrame.
|
|
1401 |
|
|
1402 |
// retreive or create the state
|
|
1403 |
JvmtiThreadState* state = JvmtiThreadState::state_for(java_thread);
|
|
1404 |
|
|
1405 |
state->update_for_pop_top_frame();
|
|
1406 |
java_thread->set_popframe_condition(JavaThread::popframe_pending_bit);
|
|
1407 |
// Set pending step flag for this popframe and it is cleared when next
|
|
1408 |
// step event is posted.
|
|
1409 |
state->set_pending_step_for_popframe();
|
|
1410 |
}
|
|
1411 |
|
|
1412 |
return JVMTI_ERROR_NONE;
|
|
1413 |
} /* end PopFrame */
|
|
1414 |
|
|
1415 |
|
|
1416 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1417 |
// java_thread - pre-checked
|
|
1418 |
// java_thread - unchecked
|
|
1419 |
// depth - pre-checked as non-negative
|
|
1420 |
// method_ptr - pre-checked for NULL
|
|
1421 |
// location_ptr - pre-checked for NULL
|
|
1422 |
jvmtiError
|
|
1423 |
JvmtiEnv::GetFrameLocation(JavaThread* java_thread, jint depth, jmethodID* method_ptr, jlocation* location_ptr) {
|
|
1424 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
1425 |
uint32_t debug_bits = 0;
|
|
1426 |
|
|
1427 |
if (is_thread_fully_suspended(java_thread, true, &debug_bits)) {
|
|
1428 |
err = get_frame_location(java_thread, depth, method_ptr, location_ptr);
|
|
1429 |
} else {
|
|
1430 |
// JVMTI get java stack frame location at safepoint.
|
|
1431 |
VM_GetFrameLocation op(this, java_thread, depth, method_ptr, location_ptr);
|
|
1432 |
VMThread::execute(&op);
|
|
1433 |
err = op.result();
|
|
1434 |
}
|
|
1435 |
return err;
|
|
1436 |
} /* end GetFrameLocation */
|
|
1437 |
|
|
1438 |
|
|
1439 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1440 |
// java_thread - pre-checked
|
|
1441 |
// java_thread - unchecked
|
|
1442 |
// depth - pre-checked as non-negative
|
|
1443 |
jvmtiError
|
|
1444 |
JvmtiEnv::NotifyFramePop(JavaThread* java_thread, jint depth) {
|
|
1445 |
ResourceMark rm;
|
|
1446 |
uint32_t debug_bits = 0;
|
|
1447 |
|
|
1448 |
if (!JvmtiEnv::is_thread_fully_suspended(java_thread, true, &debug_bits)) {
|
|
1449 |
return JVMTI_ERROR_THREAD_NOT_SUSPENDED;
|
|
1450 |
}
|
|
1451 |
|
|
1452 |
if (TraceJVMTICalls) {
|
|
1453 |
JvmtiSuspendControl::print();
|
|
1454 |
}
|
|
1455 |
|
|
1456 |
vframe *vf = vframeFor(java_thread, depth);
|
|
1457 |
if (vf == NULL) {
|
|
1458 |
return JVMTI_ERROR_NO_MORE_FRAMES;
|
|
1459 |
}
|
|
1460 |
|
|
1461 |
if (!vf->is_java_frame() || ((javaVFrame*) vf)->method()->is_native()) {
|
|
1462 |
return JVMTI_ERROR_OPAQUE_FRAME;
|
|
1463 |
}
|
|
1464 |
|
|
1465 |
assert(vf->frame_pointer() != NULL, "frame pointer mustn't be NULL");
|
|
1466 |
|
|
1467 |
JvmtiThreadState *state = JvmtiThreadState::state_for(java_thread);
|
|
1468 |
int frame_number = state->count_frames() - depth;
|
|
1469 |
state->env_thread_state(this)->set_frame_pop(frame_number);
|
|
1470 |
|
|
1471 |
return JVMTI_ERROR_NONE;
|
|
1472 |
} /* end NotifyFramePop */
|
|
1473 |
|
|
1474 |
|
|
1475 |
//
|
|
1476 |
// Force Early Return functions
|
|
1477 |
//
|
|
1478 |
|
|
1479 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1480 |
// java_thread - pre-checked
|
|
1481 |
jvmtiError
|
|
1482 |
JvmtiEnv::ForceEarlyReturnObject(JavaThread* java_thread, jobject value) {
|
|
1483 |
jvalue val;
|
|
1484 |
val.l = value;
|
|
1485 |
return force_early_return(java_thread, val, atos);
|
|
1486 |
} /* end ForceEarlyReturnObject */
|
|
1487 |
|
|
1488 |
|
|
1489 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1490 |
// java_thread - pre-checked
|
|
1491 |
jvmtiError
|
|
1492 |
JvmtiEnv::ForceEarlyReturnInt(JavaThread* java_thread, jint value) {
|
|
1493 |
jvalue val;
|
|
1494 |
val.i = value;
|
|
1495 |
return force_early_return(java_thread, val, itos);
|
|
1496 |
} /* end ForceEarlyReturnInt */
|
|
1497 |
|
|
1498 |
|
|
1499 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1500 |
// java_thread - pre-checked
|
|
1501 |
jvmtiError
|
|
1502 |
JvmtiEnv::ForceEarlyReturnLong(JavaThread* java_thread, jlong value) {
|
|
1503 |
jvalue val;
|
|
1504 |
val.j = value;
|
|
1505 |
return force_early_return(java_thread, val, ltos);
|
|
1506 |
} /* end ForceEarlyReturnLong */
|
|
1507 |
|
|
1508 |
|
|
1509 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1510 |
// java_thread - pre-checked
|
|
1511 |
jvmtiError
|
|
1512 |
JvmtiEnv::ForceEarlyReturnFloat(JavaThread* java_thread, jfloat value) {
|
|
1513 |
jvalue val;
|
|
1514 |
val.f = value;
|
|
1515 |
return force_early_return(java_thread, val, ftos);
|
|
1516 |
} /* end ForceEarlyReturnFloat */
|
|
1517 |
|
|
1518 |
|
|
1519 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1520 |
// java_thread - pre-checked
|
|
1521 |
jvmtiError
|
|
1522 |
JvmtiEnv::ForceEarlyReturnDouble(JavaThread* java_thread, jdouble value) {
|
|
1523 |
jvalue val;
|
|
1524 |
val.d = value;
|
|
1525 |
return force_early_return(java_thread, val, dtos);
|
|
1526 |
} /* end ForceEarlyReturnDouble */
|
|
1527 |
|
|
1528 |
|
|
1529 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1530 |
// java_thread - pre-checked
|
|
1531 |
jvmtiError
|
|
1532 |
JvmtiEnv::ForceEarlyReturnVoid(JavaThread* java_thread) {
|
|
1533 |
jvalue val;
|
|
1534 |
val.j = 0L;
|
|
1535 |
return force_early_return(java_thread, val, vtos);
|
|
1536 |
} /* end ForceEarlyReturnVoid */
|
|
1537 |
|
|
1538 |
|
|
1539 |
//
|
|
1540 |
// Heap functions
|
|
1541 |
//
|
|
1542 |
|
|
1543 |
// klass - NULL is a valid value, must be checked
|
|
1544 |
// initial_object - NULL is a valid value, must be checked
|
|
1545 |
// callbacks - pre-checked for NULL
|
|
1546 |
// user_data - NULL is a valid value, must be checked
|
|
1547 |
jvmtiError
|
|
1548 |
JvmtiEnv::FollowReferences(jint heap_filter, jclass klass, jobject initial_object, const jvmtiHeapCallbacks* callbacks, const void* user_data) {
|
|
1549 |
// check klass if provided
|
|
1550 |
klassOop k_oop = NULL;
|
|
1551 |
if (klass != NULL) {
|
|
1552 |
oop k_mirror = JNIHandles::resolve_external_guard(klass);
|
|
1553 |
if (k_mirror == NULL) {
|
|
1554 |
return JVMTI_ERROR_INVALID_CLASS;
|
|
1555 |
}
|
|
1556 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
1557 |
return JVMTI_ERROR_NONE;
|
|
1558 |
}
|
|
1559 |
k_oop = java_lang_Class::as_klassOop(k_mirror);
|
|
1560 |
if (k_oop == NULL) {
|
|
1561 |
return JVMTI_ERROR_INVALID_CLASS;
|
|
1562 |
}
|
|
1563 |
}
|
|
1564 |
|
|
1565 |
Thread *thread = Thread::current();
|
|
1566 |
HandleMark hm(thread);
|
|
1567 |
KlassHandle kh (thread, k_oop);
|
|
1568 |
|
|
1569 |
TraceTime t("FollowReferences", TraceJVMTIObjectTagging);
|
|
1570 |
JvmtiTagMap::tag_map_for(this)->follow_references(heap_filter, kh, initial_object, callbacks, user_data);
|
|
1571 |
return JVMTI_ERROR_NONE;
|
|
1572 |
} /* end FollowReferences */
|
|
1573 |
|
|
1574 |
|
|
1575 |
// klass - NULL is a valid value, must be checked
|
|
1576 |
// callbacks - pre-checked for NULL
|
|
1577 |
// user_data - NULL is a valid value, must be checked
|
|
1578 |
jvmtiError
|
|
1579 |
JvmtiEnv::IterateThroughHeap(jint heap_filter, jclass klass, const jvmtiHeapCallbacks* callbacks, const void* user_data) {
|
|
1580 |
// check klass if provided
|
|
1581 |
klassOop k_oop = NULL;
|
|
1582 |
if (klass != NULL) {
|
|
1583 |
oop k_mirror = JNIHandles::resolve_external_guard(klass);
|
|
1584 |
if (k_mirror == NULL) {
|
|
1585 |
return JVMTI_ERROR_INVALID_CLASS;
|
|
1586 |
}
|
|
1587 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
1588 |
return JVMTI_ERROR_NONE;
|
|
1589 |
}
|
|
1590 |
k_oop = java_lang_Class::as_klassOop(k_mirror);
|
|
1591 |
if (k_oop == NULL) {
|
|
1592 |
return JVMTI_ERROR_INVALID_CLASS;
|
|
1593 |
}
|
|
1594 |
}
|
|
1595 |
|
|
1596 |
Thread *thread = Thread::current();
|
|
1597 |
HandleMark hm(thread);
|
|
1598 |
KlassHandle kh (thread, k_oop);
|
|
1599 |
|
|
1600 |
TraceTime t("IterateThroughHeap", TraceJVMTIObjectTagging);
|
|
1601 |
JvmtiTagMap::tag_map_for(this)->iterate_through_heap(heap_filter, kh, callbacks, user_data);
|
|
1602 |
return JVMTI_ERROR_NONE;
|
|
1603 |
} /* end IterateThroughHeap */
|
|
1604 |
|
|
1605 |
|
|
1606 |
// tag_ptr - pre-checked for NULL
|
|
1607 |
jvmtiError
|
|
1608 |
JvmtiEnv::GetTag(jobject object, jlong* tag_ptr) {
|
|
1609 |
oop o = JNIHandles::resolve_external_guard(object);
|
|
1610 |
NULL_CHECK(o, JVMTI_ERROR_INVALID_OBJECT);
|
|
1611 |
*tag_ptr = JvmtiTagMap::tag_map_for(this)->get_tag(object);
|
|
1612 |
return JVMTI_ERROR_NONE;
|
|
1613 |
} /* end GetTag */
|
|
1614 |
|
|
1615 |
|
|
1616 |
jvmtiError
|
|
1617 |
JvmtiEnv::SetTag(jobject object, jlong tag) {
|
|
1618 |
oop o = JNIHandles::resolve_external_guard(object);
|
|
1619 |
NULL_CHECK(o, JVMTI_ERROR_INVALID_OBJECT);
|
|
1620 |
JvmtiTagMap::tag_map_for(this)->set_tag(object, tag);
|
|
1621 |
return JVMTI_ERROR_NONE;
|
|
1622 |
} /* end SetTag */
|
|
1623 |
|
|
1624 |
|
|
1625 |
// tag_count - pre-checked to be greater than or equal to 0
|
|
1626 |
// tags - pre-checked for NULL
|
|
1627 |
// count_ptr - pre-checked for NULL
|
|
1628 |
// object_result_ptr - NULL is a valid value, must be checked
|
|
1629 |
// tag_result_ptr - NULL is a valid value, must be checked
|
|
1630 |
jvmtiError
|
|
1631 |
JvmtiEnv::GetObjectsWithTags(jint tag_count, const jlong* tags, jint* count_ptr, jobject** object_result_ptr, jlong** tag_result_ptr) {
|
|
1632 |
TraceTime t("GetObjectsWithTags", TraceJVMTIObjectTagging);
|
|
1633 |
return JvmtiTagMap::tag_map_for(this)->get_objects_with_tags((jlong*)tags, tag_count, count_ptr, object_result_ptr, tag_result_ptr);
|
|
1634 |
} /* end GetObjectsWithTags */
|
|
1635 |
|
|
1636 |
|
|
1637 |
jvmtiError
|
|
1638 |
JvmtiEnv::ForceGarbageCollection() {
|
|
1639 |
Universe::heap()->collect(GCCause::_jvmti_force_gc);
|
|
1640 |
return JVMTI_ERROR_NONE;
|
|
1641 |
} /* end ForceGarbageCollection */
|
|
1642 |
|
|
1643 |
|
|
1644 |
//
|
|
1645 |
// Heap (1.0) functions
|
|
1646 |
//
|
|
1647 |
|
|
1648 |
// object_reference_callback - pre-checked for NULL
|
|
1649 |
// user_data - NULL is a valid value, must be checked
|
|
1650 |
jvmtiError
|
|
1651 |
JvmtiEnv::IterateOverObjectsReachableFromObject(jobject object, jvmtiObjectReferenceCallback object_reference_callback, const void* user_data) {
|
|
1652 |
oop o = JNIHandles::resolve_external_guard(object);
|
|
1653 |
NULL_CHECK(o, JVMTI_ERROR_INVALID_OBJECT);
|
|
1654 |
JvmtiTagMap::tag_map_for(this)->iterate_over_objects_reachable_from_object(object, object_reference_callback, user_data);
|
|
1655 |
return JVMTI_ERROR_NONE;
|
|
1656 |
} /* end IterateOverObjectsReachableFromObject */
|
|
1657 |
|
|
1658 |
|
|
1659 |
// heap_root_callback - NULL is a valid value, must be checked
|
|
1660 |
// stack_ref_callback - NULL is a valid value, must be checked
|
|
1661 |
// object_ref_callback - NULL is a valid value, must be checked
|
|
1662 |
// user_data - NULL is a valid value, must be checked
|
|
1663 |
jvmtiError
|
|
1664 |
JvmtiEnv::IterateOverReachableObjects(jvmtiHeapRootCallback heap_root_callback, jvmtiStackReferenceCallback stack_ref_callback, jvmtiObjectReferenceCallback object_ref_callback, const void* user_data) {
|
|
1665 |
TraceTime t("IterateOverReachableObjects", TraceJVMTIObjectTagging);
|
|
1666 |
JvmtiTagMap::tag_map_for(this)->iterate_over_reachable_objects(heap_root_callback, stack_ref_callback, object_ref_callback, user_data);
|
|
1667 |
return JVMTI_ERROR_NONE;
|
|
1668 |
} /* end IterateOverReachableObjects */
|
|
1669 |
|
|
1670 |
|
|
1671 |
// heap_object_callback - pre-checked for NULL
|
|
1672 |
// user_data - NULL is a valid value, must be checked
|
|
1673 |
jvmtiError
|
|
1674 |
JvmtiEnv::IterateOverHeap(jvmtiHeapObjectFilter object_filter, jvmtiHeapObjectCallback heap_object_callback, const void* user_data) {
|
|
1675 |
TraceTime t("IterateOverHeap", TraceJVMTIObjectTagging);
|
|
1676 |
Thread *thread = Thread::current();
|
|
1677 |
HandleMark hm(thread);
|
|
1678 |
JvmtiTagMap::tag_map_for(this)->iterate_over_heap(object_filter, KlassHandle(), heap_object_callback, user_data);
|
|
1679 |
return JVMTI_ERROR_NONE;
|
|
1680 |
} /* end IterateOverHeap */
|
|
1681 |
|
|
1682 |
|
|
1683 |
// k_mirror - may be primitive, this must be checked
|
|
1684 |
// heap_object_callback - pre-checked for NULL
|
|
1685 |
// user_data - NULL is a valid value, must be checked
|
|
1686 |
jvmtiError
|
|
1687 |
JvmtiEnv::IterateOverInstancesOfClass(oop k_mirror, jvmtiHeapObjectFilter object_filter, jvmtiHeapObjectCallback heap_object_callback, const void* user_data) {
|
|
1688 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
1689 |
// DO PRIMITIVE CLASS PROCESSING
|
|
1690 |
return JVMTI_ERROR_NONE;
|
|
1691 |
}
|
|
1692 |
klassOop k_oop = java_lang_Class::as_klassOop(k_mirror);
|
|
1693 |
if (k_oop == NULL) {
|
|
1694 |
return JVMTI_ERROR_INVALID_CLASS;
|
|
1695 |
}
|
|
1696 |
Thread *thread = Thread::current();
|
|
1697 |
HandleMark hm(thread);
|
|
1698 |
KlassHandle klass (thread, k_oop);
|
|
1699 |
TraceTime t("IterateOverInstancesOfClass", TraceJVMTIObjectTagging);
|
|
1700 |
JvmtiTagMap::tag_map_for(this)->iterate_over_heap(object_filter, klass, heap_object_callback, user_data);
|
|
1701 |
return JVMTI_ERROR_NONE;
|
|
1702 |
} /* end IterateOverInstancesOfClass */
|
|
1703 |
|
|
1704 |
|
|
1705 |
//
|
|
1706 |
// Local Variable functions
|
|
1707 |
//
|
|
1708 |
|
|
1709 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1710 |
// java_thread - pre-checked
|
|
1711 |
// java_thread - unchecked
|
|
1712 |
// depth - pre-checked as non-negative
|
|
1713 |
// value_ptr - pre-checked for NULL
|
|
1714 |
jvmtiError
|
|
1715 |
JvmtiEnv::GetLocalObject(JavaThread* java_thread, jint depth, jint slot, jobject* value_ptr) {
|
|
1716 |
JavaThread* current_thread = JavaThread::current();
|
|
1717 |
// rm object is created to clean up the javaVFrame created in
|
|
1718 |
// doit_prologue(), but after doit() is finished with it.
|
|
1719 |
ResourceMark rm(current_thread);
|
|
1720 |
|
|
1721 |
VM_GetOrSetLocal op(java_thread, current_thread, depth, slot);
|
|
1722 |
VMThread::execute(&op);
|
|
1723 |
jvmtiError err = op.result();
|
|
1724 |
if (err != JVMTI_ERROR_NONE) {
|
|
1725 |
return err;
|
|
1726 |
} else {
|
|
1727 |
*value_ptr = op.value().l;
|
|
1728 |
return JVMTI_ERROR_NONE;
|
|
1729 |
}
|
|
1730 |
} /* end GetLocalObject */
|
|
1731 |
|
|
1732 |
|
|
1733 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1734 |
// java_thread - pre-checked
|
|
1735 |
// java_thread - unchecked
|
|
1736 |
// depth - pre-checked as non-negative
|
|
1737 |
// value_ptr - pre-checked for NULL
|
|
1738 |
jvmtiError
|
|
1739 |
JvmtiEnv::GetLocalInt(JavaThread* java_thread, jint depth, jint slot, jint* value_ptr) {
|
|
1740 |
// rm object is created to clean up the javaVFrame created in
|
|
1741 |
// doit_prologue(), but after doit() is finished with it.
|
|
1742 |
ResourceMark rm;
|
|
1743 |
|
|
1744 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_INT);
|
|
1745 |
VMThread::execute(&op);
|
|
1746 |
*value_ptr = op.value().i;
|
|
1747 |
return op.result();
|
|
1748 |
} /* end GetLocalInt */
|
|
1749 |
|
|
1750 |
|
|
1751 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1752 |
// java_thread - pre-checked
|
|
1753 |
// java_thread - unchecked
|
|
1754 |
// depth - pre-checked as non-negative
|
|
1755 |
// value_ptr - pre-checked for NULL
|
|
1756 |
jvmtiError
|
|
1757 |
JvmtiEnv::GetLocalLong(JavaThread* java_thread, jint depth, jint slot, jlong* value_ptr) {
|
|
1758 |
// rm object is created to clean up the javaVFrame created in
|
|
1759 |
// doit_prologue(), but after doit() is finished with it.
|
|
1760 |
ResourceMark rm;
|
|
1761 |
|
|
1762 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_LONG);
|
|
1763 |
VMThread::execute(&op);
|
|
1764 |
*value_ptr = op.value().j;
|
|
1765 |
return op.result();
|
|
1766 |
} /* end GetLocalLong */
|
|
1767 |
|
|
1768 |
|
|
1769 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1770 |
// java_thread - pre-checked
|
|
1771 |
// java_thread - unchecked
|
|
1772 |
// depth - pre-checked as non-negative
|
|
1773 |
// value_ptr - pre-checked for NULL
|
|
1774 |
jvmtiError
|
|
1775 |
JvmtiEnv::GetLocalFloat(JavaThread* java_thread, jint depth, jint slot, jfloat* value_ptr) {
|
|
1776 |
// rm object is created to clean up the javaVFrame created in
|
|
1777 |
// doit_prologue(), but after doit() is finished with it.
|
|
1778 |
ResourceMark rm;
|
|
1779 |
|
|
1780 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_FLOAT);
|
|
1781 |
VMThread::execute(&op);
|
|
1782 |
*value_ptr = op.value().f;
|
|
1783 |
return op.result();
|
|
1784 |
} /* end GetLocalFloat */
|
|
1785 |
|
|
1786 |
|
|
1787 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1788 |
// java_thread - pre-checked
|
|
1789 |
// java_thread - unchecked
|
|
1790 |
// depth - pre-checked as non-negative
|
|
1791 |
// value_ptr - pre-checked for NULL
|
|
1792 |
jvmtiError
|
|
1793 |
JvmtiEnv::GetLocalDouble(JavaThread* java_thread, jint depth, jint slot, jdouble* value_ptr) {
|
|
1794 |
// rm object is created to clean up the javaVFrame created in
|
|
1795 |
// doit_prologue(), but after doit() is finished with it.
|
|
1796 |
ResourceMark rm;
|
|
1797 |
|
|
1798 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_DOUBLE);
|
|
1799 |
VMThread::execute(&op);
|
|
1800 |
*value_ptr = op.value().d;
|
|
1801 |
return op.result();
|
|
1802 |
} /* end GetLocalDouble */
|
|
1803 |
|
|
1804 |
|
|
1805 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1806 |
// java_thread - pre-checked
|
|
1807 |
// java_thread - unchecked
|
|
1808 |
// depth - pre-checked as non-negative
|
|
1809 |
jvmtiError
|
|
1810 |
JvmtiEnv::SetLocalObject(JavaThread* java_thread, jint depth, jint slot, jobject value) {
|
|
1811 |
// rm object is created to clean up the javaVFrame created in
|
|
1812 |
// doit_prologue(), but after doit() is finished with it.
|
|
1813 |
ResourceMark rm;
|
|
1814 |
jvalue val;
|
|
1815 |
val.l = value;
|
|
1816 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_OBJECT, val);
|
|
1817 |
VMThread::execute(&op);
|
|
1818 |
return op.result();
|
|
1819 |
} /* end SetLocalObject */
|
|
1820 |
|
|
1821 |
|
|
1822 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1823 |
// java_thread - pre-checked
|
|
1824 |
// java_thread - unchecked
|
|
1825 |
// depth - pre-checked as non-negative
|
|
1826 |
jvmtiError
|
|
1827 |
JvmtiEnv::SetLocalInt(JavaThread* java_thread, jint depth, jint slot, jint value) {
|
|
1828 |
// rm object is created to clean up the javaVFrame created in
|
|
1829 |
// doit_prologue(), but after doit() is finished with it.
|
|
1830 |
ResourceMark rm;
|
|
1831 |
jvalue val;
|
|
1832 |
val.i = value;
|
|
1833 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_INT, val);
|
|
1834 |
VMThread::execute(&op);
|
|
1835 |
return op.result();
|
|
1836 |
} /* end SetLocalInt */
|
|
1837 |
|
|
1838 |
|
|
1839 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1840 |
// java_thread - pre-checked
|
|
1841 |
// java_thread - unchecked
|
|
1842 |
// depth - pre-checked as non-negative
|
|
1843 |
jvmtiError
|
|
1844 |
JvmtiEnv::SetLocalLong(JavaThread* java_thread, jint depth, jint slot, jlong value) {
|
|
1845 |
// rm object is created to clean up the javaVFrame created in
|
|
1846 |
// doit_prologue(), but after doit() is finished with it.
|
|
1847 |
ResourceMark rm;
|
|
1848 |
jvalue val;
|
|
1849 |
val.j = value;
|
|
1850 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_LONG, val);
|
|
1851 |
VMThread::execute(&op);
|
|
1852 |
return op.result();
|
|
1853 |
} /* end SetLocalLong */
|
|
1854 |
|
|
1855 |
|
|
1856 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1857 |
// java_thread - pre-checked
|
|
1858 |
// java_thread - unchecked
|
|
1859 |
// depth - pre-checked as non-negative
|
|
1860 |
jvmtiError
|
|
1861 |
JvmtiEnv::SetLocalFloat(JavaThread* java_thread, jint depth, jint slot, jfloat value) {
|
|
1862 |
// rm object is created to clean up the javaVFrame created in
|
|
1863 |
// doit_prologue(), but after doit() is finished with it.
|
|
1864 |
ResourceMark rm;
|
|
1865 |
jvalue val;
|
|
1866 |
val.f = value;
|
|
1867 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_FLOAT, val);
|
|
1868 |
VMThread::execute(&op);
|
|
1869 |
return op.result();
|
|
1870 |
} /* end SetLocalFloat */
|
|
1871 |
|
|
1872 |
|
|
1873 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
1874 |
// java_thread - pre-checked
|
|
1875 |
// java_thread - unchecked
|
|
1876 |
// depth - pre-checked as non-negative
|
|
1877 |
jvmtiError
|
|
1878 |
JvmtiEnv::SetLocalDouble(JavaThread* java_thread, jint depth, jint slot, jdouble value) {
|
|
1879 |
// rm object is created to clean up the javaVFrame created in
|
|
1880 |
// doit_prologue(), but after doit() is finished with it.
|
|
1881 |
ResourceMark rm;
|
|
1882 |
jvalue val;
|
|
1883 |
val.d = value;
|
|
1884 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_DOUBLE, val);
|
|
1885 |
VMThread::execute(&op);
|
|
1886 |
return op.result();
|
|
1887 |
} /* end SetLocalDouble */
|
|
1888 |
|
|
1889 |
|
|
1890 |
//
|
|
1891 |
// Breakpoint functions
|
|
1892 |
//
|
|
1893 |
|
|
1894 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
1895 |
jvmtiError
|
|
1896 |
JvmtiEnv::SetBreakpoint(methodOop method_oop, jlocation location) {
|
|
1897 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
1898 |
if (location < 0) { // simple invalid location check first
|
|
1899 |
return JVMTI_ERROR_INVALID_LOCATION;
|
|
1900 |
}
|
|
1901 |
// verify that the breakpoint is not past the end of the method
|
|
1902 |
if (location >= (jlocation) method_oop->code_size()) {
|
|
1903 |
return JVMTI_ERROR_INVALID_LOCATION;
|
|
1904 |
}
|
|
1905 |
|
|
1906 |
ResourceMark rm;
|
|
1907 |
JvmtiBreakpoint bp(method_oop, location);
|
|
1908 |
JvmtiBreakpoints& jvmti_breakpoints = JvmtiCurrentBreakpoints::get_jvmti_breakpoints();
|
|
1909 |
if (jvmti_breakpoints.set(bp) == JVMTI_ERROR_DUPLICATE)
|
|
1910 |
return JVMTI_ERROR_DUPLICATE;
|
|
1911 |
|
|
1912 |
if (TraceJVMTICalls) {
|
|
1913 |
jvmti_breakpoints.print();
|
|
1914 |
}
|
|
1915 |
|
|
1916 |
return JVMTI_ERROR_NONE;
|
|
1917 |
} /* end SetBreakpoint */
|
|
1918 |
|
|
1919 |
|
|
1920 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
1921 |
jvmtiError
|
|
1922 |
JvmtiEnv::ClearBreakpoint(methodOop method_oop, jlocation location) {
|
|
1923 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
1924 |
|
|
1925 |
if (location < 0) { // simple invalid location check first
|
|
1926 |
return JVMTI_ERROR_INVALID_LOCATION;
|
|
1927 |
}
|
|
1928 |
|
|
1929 |
// verify that the breakpoint is not past the end of the method
|
|
1930 |
if (location >= (jlocation) method_oop->code_size()) {
|
|
1931 |
return JVMTI_ERROR_INVALID_LOCATION;
|
|
1932 |
}
|
|
1933 |
|
|
1934 |
JvmtiBreakpoint bp(method_oop, location);
|
|
1935 |
|
|
1936 |
JvmtiBreakpoints& jvmti_breakpoints = JvmtiCurrentBreakpoints::get_jvmti_breakpoints();
|
|
1937 |
if (jvmti_breakpoints.clear(bp) == JVMTI_ERROR_NOT_FOUND)
|
|
1938 |
return JVMTI_ERROR_NOT_FOUND;
|
|
1939 |
|
|
1940 |
if (TraceJVMTICalls) {
|
|
1941 |
jvmti_breakpoints.print();
|
|
1942 |
}
|
|
1943 |
|
|
1944 |
return JVMTI_ERROR_NONE;
|
|
1945 |
} /* end ClearBreakpoint */
|
|
1946 |
|
|
1947 |
|
|
1948 |
//
|
|
1949 |
// Watched Field functions
|
|
1950 |
//
|
|
1951 |
|
|
1952 |
jvmtiError
|
|
1953 |
JvmtiEnv::SetFieldAccessWatch(fieldDescriptor* fdesc_ptr) {
|
|
1954 |
// make sure we haven't set this watch before
|
|
1955 |
if (fdesc_ptr->is_field_access_watched()) return JVMTI_ERROR_DUPLICATE;
|
|
1956 |
fdesc_ptr->set_is_field_access_watched(true);
|
|
1957 |
update_klass_field_access_flag(fdesc_ptr);
|
|
1958 |
|
|
1959 |
JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_ACCESS, true);
|
|
1960 |
|
|
1961 |
return JVMTI_ERROR_NONE;
|
|
1962 |
} /* end SetFieldAccessWatch */
|
|
1963 |
|
|
1964 |
|
|
1965 |
jvmtiError
|
|
1966 |
JvmtiEnv::ClearFieldAccessWatch(fieldDescriptor* fdesc_ptr) {
|
|
1967 |
// make sure we have a watch to clear
|
|
1968 |
if (!fdesc_ptr->is_field_access_watched()) return JVMTI_ERROR_NOT_FOUND;
|
|
1969 |
fdesc_ptr->set_is_field_access_watched(false);
|
|
1970 |
update_klass_field_access_flag(fdesc_ptr);
|
|
1971 |
|
|
1972 |
JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_ACCESS, false);
|
|
1973 |
|
|
1974 |
return JVMTI_ERROR_NONE;
|
|
1975 |
} /* end ClearFieldAccessWatch */
|
|
1976 |
|
|
1977 |
|
|
1978 |
jvmtiError
|
|
1979 |
JvmtiEnv::SetFieldModificationWatch(fieldDescriptor* fdesc_ptr) {
|
|
1980 |
// make sure we haven't set this watch before
|
|
1981 |
if (fdesc_ptr->is_field_modification_watched()) return JVMTI_ERROR_DUPLICATE;
|
|
1982 |
fdesc_ptr->set_is_field_modification_watched(true);
|
|
1983 |
update_klass_field_access_flag(fdesc_ptr);
|
|
1984 |
|
|
1985 |
JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_MODIFICATION, true);
|
|
1986 |
|
|
1987 |
return JVMTI_ERROR_NONE;
|
|
1988 |
} /* end SetFieldModificationWatch */
|
|
1989 |
|
|
1990 |
|
|
1991 |
jvmtiError
|
|
1992 |
JvmtiEnv::ClearFieldModificationWatch(fieldDescriptor* fdesc_ptr) {
|
|
1993 |
// make sure we have a watch to clear
|
|
1994 |
if (!fdesc_ptr->is_field_modification_watched()) return JVMTI_ERROR_NOT_FOUND;
|
|
1995 |
fdesc_ptr->set_is_field_modification_watched(false);
|
|
1996 |
update_klass_field_access_flag(fdesc_ptr);
|
|
1997 |
|
|
1998 |
JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_MODIFICATION, false);
|
|
1999 |
|
|
2000 |
return JVMTI_ERROR_NONE;
|
|
2001 |
} /* end ClearFieldModificationWatch */
|
|
2002 |
|
|
2003 |
//
|
|
2004 |
// Class functions
|
|
2005 |
//
|
|
2006 |
|
|
2007 |
|
|
2008 |
// k_mirror - may be primitive, this must be checked
|
|
2009 |
// signature_ptr - NULL is a valid value, must be checked
|
|
2010 |
// generic_ptr - NULL is a valid value, must be checked
|
|
2011 |
jvmtiError
|
|
2012 |
JvmtiEnv::GetClassSignature(oop k_mirror, char** signature_ptr, char** generic_ptr) {
|
|
2013 |
ResourceMark rm;
|
|
2014 |
bool isPrimitive = java_lang_Class::is_primitive(k_mirror);
|
|
2015 |
klassOop k = NULL;
|
|
2016 |
if (!isPrimitive) {
|
|
2017 |
k = java_lang_Class::as_klassOop(k_mirror);
|
|
2018 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS);
|
|
2019 |
}
|
|
2020 |
if (signature_ptr != NULL) {
|
|
2021 |
char* result = NULL;
|
|
2022 |
if (isPrimitive) {
|
|
2023 |
char tchar = type2char(java_lang_Class::primitive_type(k_mirror));
|
|
2024 |
result = (char*) jvmtiMalloc(2);
|
|
2025 |
result[0] = tchar;
|
|
2026 |
result[1] = '\0';
|
|
2027 |
} else {
|
|
2028 |
const char* class_sig = Klass::cast(k)->signature_name();
|
|
2029 |
result = (char *) jvmtiMalloc(strlen(class_sig)+1);
|
|
2030 |
strcpy(result, class_sig);
|
|
2031 |
}
|
|
2032 |
*signature_ptr = result;
|
|
2033 |
}
|
|
2034 |
if (generic_ptr != NULL) {
|
|
2035 |
*generic_ptr = NULL;
|
|
2036 |
if (!isPrimitive && Klass::cast(k)->oop_is_instance()) {
|
|
2037 |
symbolOop soo = instanceKlass::cast(k)->generic_signature();
|
|
2038 |
if (soo != NULL) {
|
|
2039 |
const char *gen_sig = soo->as_C_string();
|
|
2040 |
if (gen_sig != NULL) {
|
|
2041 |
char* gen_result;
|
|
2042 |
jvmtiError err = allocate(strlen(gen_sig) + 1,
|
|
2043 |
(unsigned char **)&gen_result);
|
|
2044 |
if (err != JVMTI_ERROR_NONE) {
|
|
2045 |
return err;
|
|
2046 |
}
|
|
2047 |
strcpy(gen_result, gen_sig);
|
|
2048 |
*generic_ptr = gen_result;
|
|
2049 |
}
|
|
2050 |
}
|
|
2051 |
}
|
|
2052 |
}
|
|
2053 |
return JVMTI_ERROR_NONE;
|
|
2054 |
} /* end GetClassSignature */
|
|
2055 |
|
|
2056 |
|
|
2057 |
// k_mirror - may be primitive, this must be checked
|
|
2058 |
// status_ptr - pre-checked for NULL
|
|
2059 |
jvmtiError
|
|
2060 |
JvmtiEnv::GetClassStatus(oop k_mirror, jint* status_ptr) {
|
|
2061 |
jint result = 0;
|
|
2062 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
2063 |
result |= JVMTI_CLASS_STATUS_PRIMITIVE;
|
|
2064 |
} else {
|
|
2065 |
klassOop k = java_lang_Class::as_klassOop(k_mirror);
|
|
2066 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS);
|
|
2067 |
result = Klass::cast(k)->jvmti_class_status();
|
|
2068 |
}
|
|
2069 |
*status_ptr = result;
|
|
2070 |
|
|
2071 |
return JVMTI_ERROR_NONE;
|
|
2072 |
} /* end GetClassStatus */
|
|
2073 |
|
|
2074 |
|
|
2075 |
// k_mirror - may be primitive, this must be checked
|
|
2076 |
// source_name_ptr - pre-checked for NULL
|
|
2077 |
jvmtiError
|
|
2078 |
JvmtiEnv::GetSourceFileName(oop k_mirror, char** source_name_ptr) {
|
|
2079 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
2080 |
return JVMTI_ERROR_ABSENT_INFORMATION;
|
|
2081 |
}
|
|
2082 |
klassOop k_klass = java_lang_Class::as_klassOop(k_mirror);
|
|
2083 |
NULL_CHECK(k_klass, JVMTI_ERROR_INVALID_CLASS);
|
|
2084 |
|
|
2085 |
if (!Klass::cast(k_klass)->oop_is_instance()) {
|
|
2086 |
return JVMTI_ERROR_ABSENT_INFORMATION;
|
|
2087 |
}
|
|
2088 |
|
|
2089 |
symbolOop sfnOop = instanceKlass::cast(k_klass)->source_file_name();
|
|
2090 |
NULL_CHECK(sfnOop, JVMTI_ERROR_ABSENT_INFORMATION);
|
|
2091 |
{
|
|
2092 |
JavaThread* current_thread = JavaThread::current();
|
|
2093 |
ResourceMark rm(current_thread);
|
|
2094 |
const char* sfncp = (const char*) sfnOop->as_C_string();
|
|
2095 |
*source_name_ptr = (char *) jvmtiMalloc(strlen(sfncp)+1);
|
|
2096 |
strcpy(*source_name_ptr, sfncp);
|
|
2097 |
}
|
|
2098 |
|
|
2099 |
return JVMTI_ERROR_NONE;
|
|
2100 |
} /* end GetSourceFileName */
|
|
2101 |
|
|
2102 |
|
|
2103 |
// k_mirror - may be primitive, this must be checked
|
|
2104 |
// modifiers_ptr - pre-checked for NULL
|
|
2105 |
jvmtiError
|
|
2106 |
JvmtiEnv::GetClassModifiers(oop k_mirror, jint* modifiers_ptr) {
|
|
2107 |
JavaThread* current_thread = JavaThread::current();
|
|
2108 |
jint result = 0;
|
|
2109 |
if (!java_lang_Class::is_primitive(k_mirror)) {
|
|
2110 |
klassOop k = java_lang_Class::as_klassOop(k_mirror);
|
|
2111 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS);
|
|
2112 |
assert((Klass::cast(k)->oop_is_instance() || Klass::cast(k)->oop_is_array()), "should be an instance or an array klass");
|
|
2113 |
result = Klass::cast(k)->compute_modifier_flags(current_thread);
|
|
2114 |
JavaThread* THREAD = current_thread; // pass to macros
|
|
2115 |
if (HAS_PENDING_EXCEPTION) {
|
|
2116 |
CLEAR_PENDING_EXCEPTION;
|
|
2117 |
return JVMTI_ERROR_INTERNAL;
|
|
2118 |
};
|
|
2119 |
|
|
2120 |
// Reset the deleted ACC_SUPER bit ( deleted in compute_modifier_flags()).
|
|
2121 |
if(Klass::cast(k)->is_super()) {
|
|
2122 |
result |= JVM_ACC_SUPER;
|
|
2123 |
}
|
|
2124 |
} else {
|
|
2125 |
result = (JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC);
|
|
2126 |
}
|
|
2127 |
*modifiers_ptr = result;
|
|
2128 |
|
|
2129 |
return JVMTI_ERROR_NONE;
|
|
2130 |
} /* end GetClassModifiers */
|
|
2131 |
|
|
2132 |
|
|
2133 |
// k_mirror - may be primitive, this must be checked
|
|
2134 |
// method_count_ptr - pre-checked for NULL
|
|
2135 |
// methods_ptr - pre-checked for NULL
|
|
2136 |
jvmtiError
|
|
2137 |
JvmtiEnv::GetClassMethods(oop k_mirror, jint* method_count_ptr, jmethodID** methods_ptr) {
|
|
2138 |
JavaThread* current_thread = JavaThread::current();
|
|
2139 |
HandleMark hm(current_thread);
|
|
2140 |
|
|
2141 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
2142 |
*method_count_ptr = 0;
|
|
2143 |
*methods_ptr = (jmethodID*) jvmtiMalloc(0 * sizeof(jmethodID));
|
|
2144 |
return JVMTI_ERROR_NONE;
|
|
2145 |
}
|
|
2146 |
klassOop k = java_lang_Class::as_klassOop(k_mirror);
|
|
2147 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS);
|
|
2148 |
|
|
2149 |
// Return CLASS_NOT_PREPARED error as per JVMTI spec.
|
|
2150 |
if (!(Klass::cast(k)->jvmti_class_status() & (JVMTI_CLASS_STATUS_PREPARED|JVMTI_CLASS_STATUS_ARRAY) )) {
|
|
2151 |
return JVMTI_ERROR_CLASS_NOT_PREPARED;
|
|
2152 |
}
|
|
2153 |
|
|
2154 |
if (!Klass::cast(k)->oop_is_instance()) {
|
|
2155 |
*method_count_ptr = 0;
|
|
2156 |
*methods_ptr = (jmethodID*) jvmtiMalloc(0 * sizeof(jmethodID));
|
|
2157 |
return JVMTI_ERROR_NONE;
|
|
2158 |
}
|
|
2159 |
instanceKlassHandle instanceK_h(current_thread, k);
|
|
2160 |
// Allocate the result and fill it in
|
|
2161 |
int result_length = instanceK_h->methods()->length();
|
|
2162 |
jmethodID* result_list = (jmethodID*)jvmtiMalloc(result_length * sizeof(jmethodID));
|
|
2163 |
int index;
|
|
2164 |
if (JvmtiExport::can_maintain_original_method_order()) {
|
|
2165 |
// Use the original method ordering indices stored in the class, so we can emit
|
|
2166 |
// jmethodIDs in the order they appeared in the class file
|
|
2167 |
for (index = 0; index < result_length; index++) {
|
|
2168 |
methodOop m = methodOop(instanceK_h->methods()->obj_at(index));
|
|
2169 |
int original_index = instanceK_h->method_ordering()->int_at(index);
|
|
2170 |
assert(original_index >= 0 && original_index < result_length, "invalid original method index");
|
|
2171 |
jmethodID id = m->jmethod_id();
|
|
2172 |
result_list[original_index] = id;
|
|
2173 |
}
|
|
2174 |
} else {
|
|
2175 |
// otherwise just copy in any order
|
|
2176 |
for (index = 0; index < result_length; index++) {
|
|
2177 |
methodOop m = methodOop(instanceK_h->methods()->obj_at(index));
|
|
2178 |
jmethodID id = m->jmethod_id();
|
|
2179 |
result_list[index] = id;
|
|
2180 |
}
|
|
2181 |
}
|
|
2182 |
// Fill in return value.
|
|
2183 |
*method_count_ptr = result_length;
|
|
2184 |
*methods_ptr = result_list;
|
|
2185 |
|
|
2186 |
return JVMTI_ERROR_NONE;
|
|
2187 |
} /* end GetClassMethods */
|
|
2188 |
|
|
2189 |
|
|
2190 |
// k_mirror - may be primitive, this must be checked
|
|
2191 |
// field_count_ptr - pre-checked for NULL
|
|
2192 |
// fields_ptr - pre-checked for NULL
|
|
2193 |
jvmtiError
|
|
2194 |
JvmtiEnv::GetClassFields(oop k_mirror, jint* field_count_ptr, jfieldID** fields_ptr) {
|
|
2195 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
2196 |
*field_count_ptr = 0;
|
|
2197 |
*fields_ptr = (jfieldID*) jvmtiMalloc(0 * sizeof(jfieldID));
|
|
2198 |
return JVMTI_ERROR_NONE;
|
|
2199 |
}
|
|
2200 |
JavaThread* current_thread = JavaThread::current();
|
|
2201 |
HandleMark hm(current_thread);
|
|
2202 |
klassOop k = java_lang_Class::as_klassOop(k_mirror);
|
|
2203 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS);
|
|
2204 |
|
|
2205 |
// Return CLASS_NOT_PREPARED error as per JVMTI spec.
|
|
2206 |
if (!(Klass::cast(k)->jvmti_class_status() & (JVMTI_CLASS_STATUS_PREPARED|JVMTI_CLASS_STATUS_ARRAY) )) {
|
|
2207 |
return JVMTI_ERROR_CLASS_NOT_PREPARED;
|
|
2208 |
}
|
|
2209 |
|
|
2210 |
if (!Klass::cast(k)->oop_is_instance()) {
|
|
2211 |
*field_count_ptr = 0;
|
|
2212 |
*fields_ptr = (jfieldID*) jvmtiMalloc(0 * sizeof(jfieldID));
|
|
2213 |
return JVMTI_ERROR_NONE;
|
|
2214 |
}
|
|
2215 |
|
|
2216 |
|
|
2217 |
instanceKlassHandle instanceK_h(current_thread, k);
|
|
2218 |
|
|
2219 |
int result_count = 0;
|
|
2220 |
// First, count the fields.
|
|
2221 |
FilteredFieldStream flds(instanceK_h, true, true);
|
|
2222 |
result_count = flds.field_count();
|
|
2223 |
|
|
2224 |
// Allocate the result and fill it in
|
|
2225 |
jfieldID* result_list = (jfieldID*) jvmtiMalloc(result_count * sizeof(jfieldID));
|
|
2226 |
// The JVMTI spec requires fields in the order they occur in the class file,
|
|
2227 |
// this is the reverse order of what FieldStream hands out.
|
|
2228 |
int id_index = (result_count - 1);
|
|
2229 |
|
|
2230 |
for (FilteredFieldStream src_st(instanceK_h, true, true); !src_st.eos(); src_st.next()) {
|
|
2231 |
result_list[id_index--] = jfieldIDWorkaround::to_jfieldID(
|
|
2232 |
instanceK_h, src_st.offset(),
|
|
2233 |
src_st.access_flags().is_static());
|
|
2234 |
}
|
|
2235 |
assert(id_index == -1, "just checking");
|
|
2236 |
// Fill in the results
|
|
2237 |
*field_count_ptr = result_count;
|
|
2238 |
*fields_ptr = result_list;
|
|
2239 |
|
|
2240 |
return JVMTI_ERROR_NONE;
|
|
2241 |
} /* end GetClassFields */
|
|
2242 |
|
|
2243 |
|
|
2244 |
// k_mirror - may be primitive, this must be checked
|
|
2245 |
// interface_count_ptr - pre-checked for NULL
|
|
2246 |
// interfaces_ptr - pre-checked for NULL
|
|
2247 |
jvmtiError
|
|
2248 |
JvmtiEnv::GetImplementedInterfaces(oop k_mirror, jint* interface_count_ptr, jclass** interfaces_ptr) {
|
|
2249 |
{
|
|
2250 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
2251 |
*interface_count_ptr = 0;
|
|
2252 |
*interfaces_ptr = (jclass*) jvmtiMalloc(0 * sizeof(jclass));
|
|
2253 |
return JVMTI_ERROR_NONE;
|
|
2254 |
}
|
|
2255 |
JavaThread* current_thread = JavaThread::current();
|
|
2256 |
HandleMark hm(current_thread);
|
|
2257 |
klassOop k = java_lang_Class::as_klassOop(k_mirror);
|
|
2258 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS);
|
|
2259 |
|
|
2260 |
// Return CLASS_NOT_PREPARED error as per JVMTI spec.
|
|
2261 |
if (!(Klass::cast(k)->jvmti_class_status() & (JVMTI_CLASS_STATUS_PREPARED|JVMTI_CLASS_STATUS_ARRAY) ))
|
|
2262 |
return JVMTI_ERROR_CLASS_NOT_PREPARED;
|
|
2263 |
|
|
2264 |
if (!Klass::cast(k)->oop_is_instance()) {
|
|
2265 |
*interface_count_ptr = 0;
|
|
2266 |
*interfaces_ptr = (jclass*) jvmtiMalloc(0 * sizeof(jclass));
|
|
2267 |
return JVMTI_ERROR_NONE;
|
|
2268 |
}
|
|
2269 |
|
|
2270 |
objArrayHandle interface_list(current_thread, instanceKlass::cast(k)->local_interfaces());
|
|
2271 |
const int result_length = (interface_list.is_null() ? 0 : interface_list->length());
|
|
2272 |
jclass* result_list = (jclass*) jvmtiMalloc(result_length * sizeof(jclass));
|
|
2273 |
for (int i_index = 0; i_index < result_length; i_index += 1) {
|
|
2274 |
oop oop_at = interface_list->obj_at(i_index);
|
|
2275 |
assert(oop_at->is_klass(), "interfaces must be klassOops");
|
|
2276 |
klassOop klassOop_at = klassOop(oop_at); // ???: is there a better way?
|
|
2277 |
assert(Klass::cast(klassOop_at)->is_interface(), "interfaces must be interfaces");
|
|
2278 |
oop mirror_at = Klass::cast(klassOop_at)->java_mirror();
|
|
2279 |
Handle handle_at = Handle(current_thread, mirror_at);
|
|
2280 |
result_list[i_index] = (jclass) jni_reference(handle_at);
|
|
2281 |
}
|
|
2282 |
*interface_count_ptr = result_length;
|
|
2283 |
*interfaces_ptr = result_list;
|
|
2284 |
}
|
|
2285 |
|
|
2286 |
return JVMTI_ERROR_NONE;
|
|
2287 |
} /* end GetImplementedInterfaces */
|
|
2288 |
|
|
2289 |
|
|
2290 |
// k_mirror - may be primitive, this must be checked
|
|
2291 |
// minor_version_ptr - pre-checked for NULL
|
|
2292 |
// major_version_ptr - pre-checked for NULL
|
|
2293 |
jvmtiError
|
|
2294 |
JvmtiEnv::GetClassVersionNumbers(oop k_mirror, jint* minor_version_ptr, jint* major_version_ptr) {
|
|
2295 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
2296 |
return JVMTI_ERROR_ABSENT_INFORMATION;
|
|
2297 |
}
|
|
2298 |
klassOop k_oop = java_lang_Class::as_klassOop(k_mirror);
|
|
2299 |
Thread *thread = Thread::current();
|
|
2300 |
HandleMark hm(thread);
|
|
2301 |
KlassHandle klass(thread, k_oop);
|
|
2302 |
|
|
2303 |
jint status = klass->jvmti_class_status();
|
|
2304 |
if (status & (JVMTI_CLASS_STATUS_ERROR)) {
|
|
2305 |
return JVMTI_ERROR_INVALID_CLASS;
|
|
2306 |
}
|
|
2307 |
if (status & (JVMTI_CLASS_STATUS_ARRAY)) {
|
|
2308 |
return JVMTI_ERROR_ABSENT_INFORMATION;
|
|
2309 |
}
|
|
2310 |
|
|
2311 |
instanceKlassHandle ik(thread, k_oop);
|
|
2312 |
*minor_version_ptr = ik->minor_version();
|
|
2313 |
*major_version_ptr = ik->major_version();
|
|
2314 |
|
|
2315 |
return JVMTI_ERROR_NONE;
|
|
2316 |
} /* end GetClassVersionNumbers */
|
|
2317 |
|
|
2318 |
|
|
2319 |
// k_mirror - may be primitive, this must be checked
|
|
2320 |
// constant_pool_count_ptr - pre-checked for NULL
|
|
2321 |
// constant_pool_byte_count_ptr - pre-checked for NULL
|
|
2322 |
// constant_pool_bytes_ptr - pre-checked for NULL
|
|
2323 |
jvmtiError
|
|
2324 |
JvmtiEnv::GetConstantPool(oop k_mirror, jint* constant_pool_count_ptr, jint* constant_pool_byte_count_ptr, unsigned char** constant_pool_bytes_ptr) {
|
|
2325 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
2326 |
return JVMTI_ERROR_ABSENT_INFORMATION;
|
|
2327 |
}
|
|
2328 |
|
|
2329 |
klassOop k_oop = java_lang_Class::as_klassOop(k_mirror);
|
|
2330 |
Thread *thread = Thread::current();
|
|
2331 |
HandleMark hm(thread);
|
|
2332 |
ResourceMark rm(thread);
|
|
2333 |
KlassHandle klass(thread, k_oop);
|
|
2334 |
|
|
2335 |
jint status = klass->jvmti_class_status();
|
|
2336 |
if (status & (JVMTI_CLASS_STATUS_ERROR)) {
|
|
2337 |
return JVMTI_ERROR_INVALID_CLASS;
|
|
2338 |
}
|
|
2339 |
if (status & (JVMTI_CLASS_STATUS_ARRAY)) {
|
|
2340 |
return JVMTI_ERROR_ABSENT_INFORMATION;
|
|
2341 |
}
|
|
2342 |
|
|
2343 |
instanceKlassHandle ikh(thread, k_oop);
|
|
2344 |
constantPoolHandle constants(thread, ikh->constants());
|
|
2345 |
ObjectLocker ol(constants, thread); // lock constant pool while we query it
|
|
2346 |
|
|
2347 |
JvmtiConstantPoolReconstituter reconstituter(ikh);
|
|
2348 |
if (reconstituter.get_error() != JVMTI_ERROR_NONE) {
|
|
2349 |
return reconstituter.get_error();
|
|
2350 |
}
|
|
2351 |
|
|
2352 |
unsigned char *cpool_bytes;
|
|
2353 |
int cpool_size = reconstituter.cpool_size();
|
|
2354 |
if (reconstituter.get_error() != JVMTI_ERROR_NONE) {
|
|
2355 |
return reconstituter.get_error();
|
|
2356 |
}
|
|
2357 |
jvmtiError res = allocate(cpool_size, &cpool_bytes);
|
|
2358 |
if (res != JVMTI_ERROR_NONE) {
|
|
2359 |
return res;
|
|
2360 |
}
|
|
2361 |
reconstituter.copy_cpool_bytes(cpool_bytes);
|
|
2362 |
if (reconstituter.get_error() != JVMTI_ERROR_NONE) {
|
|
2363 |
return reconstituter.get_error();
|
|
2364 |
}
|
|
2365 |
|
|
2366 |
*constant_pool_count_ptr = constants->length();
|
|
2367 |
*constant_pool_byte_count_ptr = cpool_size;
|
|
2368 |
*constant_pool_bytes_ptr = cpool_bytes;
|
|
2369 |
|
|
2370 |
return JVMTI_ERROR_NONE;
|
|
2371 |
} /* end GetConstantPool */
|
|
2372 |
|
|
2373 |
|
|
2374 |
// k_mirror - may be primitive, this must be checked
|
|
2375 |
// is_interface_ptr - pre-checked for NULL
|
|
2376 |
jvmtiError
|
|
2377 |
JvmtiEnv::IsInterface(oop k_mirror, jboolean* is_interface_ptr) {
|
|
2378 |
{
|
|
2379 |
bool result = false;
|
|
2380 |
if (!java_lang_Class::is_primitive(k_mirror)) {
|
|
2381 |
klassOop k = java_lang_Class::as_klassOop(k_mirror);
|
|
2382 |
if (k != NULL && Klass::cast(k)->is_interface()) {
|
|
2383 |
result = true;
|
|
2384 |
}
|
|
2385 |
}
|
|
2386 |
*is_interface_ptr = result;
|
|
2387 |
}
|
|
2388 |
|
|
2389 |
return JVMTI_ERROR_NONE;
|
|
2390 |
} /* end IsInterface */
|
|
2391 |
|
|
2392 |
|
|
2393 |
// k_mirror - may be primitive, this must be checked
|
|
2394 |
// is_array_class_ptr - pre-checked for NULL
|
|
2395 |
jvmtiError
|
|
2396 |
JvmtiEnv::IsArrayClass(oop k_mirror, jboolean* is_array_class_ptr) {
|
|
2397 |
{
|
|
2398 |
bool result = false;
|
|
2399 |
if (!java_lang_Class::is_primitive(k_mirror)) {
|
|
2400 |
klassOop k = java_lang_Class::as_klassOop(k_mirror);
|
|
2401 |
if (k != NULL && Klass::cast(k)->oop_is_array()) {
|
|
2402 |
result = true;
|
|
2403 |
}
|
|
2404 |
}
|
|
2405 |
*is_array_class_ptr = result;
|
|
2406 |
}
|
|
2407 |
|
|
2408 |
return JVMTI_ERROR_NONE;
|
|
2409 |
} /* end IsArrayClass */
|
|
2410 |
|
|
2411 |
|
|
2412 |
// k_mirror - may be primitive, this must be checked
|
|
2413 |
// classloader_ptr - pre-checked for NULL
|
|
2414 |
jvmtiError
|
|
2415 |
JvmtiEnv::GetClassLoader(oop k_mirror, jobject* classloader_ptr) {
|
|
2416 |
{
|
|
2417 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
2418 |
*classloader_ptr = (jclass) jni_reference(Handle());
|
|
2419 |
return JVMTI_ERROR_NONE;
|
|
2420 |
}
|
|
2421 |
JavaThread* current_thread = JavaThread::current();
|
|
2422 |
HandleMark hm(current_thread);
|
|
2423 |
klassOop k = java_lang_Class::as_klassOop(k_mirror);
|
|
2424 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS);
|
|
2425 |
|
|
2426 |
oop result_oop = Klass::cast(k)->class_loader();
|
|
2427 |
if (result_oop == NULL) {
|
|
2428 |
*classloader_ptr = (jclass) jni_reference(Handle());
|
|
2429 |
return JVMTI_ERROR_NONE;
|
|
2430 |
}
|
|
2431 |
Handle result_handle = Handle(current_thread, result_oop);
|
|
2432 |
jclass result_jnihandle = (jclass) jni_reference(result_handle);
|
|
2433 |
*classloader_ptr = result_jnihandle;
|
|
2434 |
}
|
|
2435 |
return JVMTI_ERROR_NONE;
|
|
2436 |
} /* end GetClassLoader */
|
|
2437 |
|
|
2438 |
|
|
2439 |
// k_mirror - may be primitive, this must be checked
|
|
2440 |
// source_debug_extension_ptr - pre-checked for NULL
|
|
2441 |
jvmtiError
|
|
2442 |
JvmtiEnv::GetSourceDebugExtension(oop k_mirror, char** source_debug_extension_ptr) {
|
|
2443 |
{
|
|
2444 |
if (java_lang_Class::is_primitive(k_mirror)) {
|
|
2445 |
return JVMTI_ERROR_ABSENT_INFORMATION;
|
|
2446 |
}
|
|
2447 |
klassOop k = java_lang_Class::as_klassOop(k_mirror);
|
|
2448 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS);
|
|
2449 |
if (!Klass::cast(k)->oop_is_instance()) {
|
|
2450 |
return JVMTI_ERROR_ABSENT_INFORMATION;
|
|
2451 |
}
|
|
2452 |
symbolOop sdeOop = instanceKlass::cast(k)->source_debug_extension();
|
|
2453 |
NULL_CHECK(sdeOop, JVMTI_ERROR_ABSENT_INFORMATION);
|
|
2454 |
|
|
2455 |
{
|
|
2456 |
JavaThread* current_thread = JavaThread::current();
|
|
2457 |
ResourceMark rm(current_thread);
|
|
2458 |
const char* sdecp = (const char*) sdeOop->as_C_string();
|
|
2459 |
*source_debug_extension_ptr = (char *) jvmtiMalloc(strlen(sdecp)+1);
|
|
2460 |
strcpy(*source_debug_extension_ptr, sdecp);
|
|
2461 |
}
|
|
2462 |
}
|
|
2463 |
|
|
2464 |
return JVMTI_ERROR_NONE;
|
|
2465 |
} /* end GetSourceDebugExtension */
|
|
2466 |
|
|
2467 |
//
|
|
2468 |
// Object functions
|
|
2469 |
//
|
|
2470 |
|
|
2471 |
// hash_code_ptr - pre-checked for NULL
|
|
2472 |
jvmtiError
|
|
2473 |
JvmtiEnv::GetObjectHashCode(jobject object, jint* hash_code_ptr) {
|
|
2474 |
oop mirror = JNIHandles::resolve_external_guard(object);
|
|
2475 |
NULL_CHECK(mirror, JVMTI_ERROR_INVALID_OBJECT);
|
|
2476 |
NULL_CHECK(hash_code_ptr, JVMTI_ERROR_NULL_POINTER);
|
|
2477 |
|
|
2478 |
{
|
|
2479 |
jint result = (jint) mirror->identity_hash();
|
|
2480 |
*hash_code_ptr = result;
|
|
2481 |
}
|
|
2482 |
return JVMTI_ERROR_NONE;
|
|
2483 |
} /* end GetObjectHashCode */
|
|
2484 |
|
|
2485 |
|
|
2486 |
// info_ptr - pre-checked for NULL
|
|
2487 |
jvmtiError
|
|
2488 |
JvmtiEnv::GetObjectMonitorUsage(jobject object, jvmtiMonitorUsage* info_ptr) {
|
|
2489 |
JavaThread* calling_thread = JavaThread::current();
|
|
2490 |
jvmtiError err = get_object_monitor_usage(calling_thread, object, info_ptr);
|
|
2491 |
if (err == JVMTI_ERROR_THREAD_NOT_SUSPENDED) {
|
|
2492 |
// Some of the critical threads were not suspended. go to a safepoint and try again
|
|
2493 |
VM_GetObjectMonitorUsage op(this, calling_thread, object, info_ptr);
|
|
2494 |
VMThread::execute(&op);
|
|
2495 |
err = op.result();
|
|
2496 |
}
|
|
2497 |
return err;
|
|
2498 |
} /* end GetObjectMonitorUsage */
|
|
2499 |
|
|
2500 |
|
|
2501 |
//
|
|
2502 |
// Field functions
|
|
2503 |
//
|
|
2504 |
|
|
2505 |
// name_ptr - NULL is a valid value, must be checked
|
|
2506 |
// signature_ptr - NULL is a valid value, must be checked
|
|
2507 |
// generic_ptr - NULL is a valid value, must be checked
|
|
2508 |
jvmtiError
|
|
2509 |
JvmtiEnv::GetFieldName(fieldDescriptor* fdesc_ptr, char** name_ptr, char** signature_ptr, char** generic_ptr) {
|
|
2510 |
JavaThread* current_thread = JavaThread::current();
|
|
2511 |
ResourceMark rm(current_thread);
|
|
2512 |
if (name_ptr == NULL) {
|
|
2513 |
// just don't return the name
|
|
2514 |
} else {
|
|
2515 |
const char* fieldName = fdesc_ptr->name()->as_C_string();
|
|
2516 |
*name_ptr = (char*) jvmtiMalloc(strlen(fieldName) + 1);
|
|
2517 |
if (*name_ptr == NULL)
|
|
2518 |
return JVMTI_ERROR_OUT_OF_MEMORY;
|
|
2519 |
strcpy(*name_ptr, fieldName);
|
|
2520 |
}
|
|
2521 |
if (signature_ptr== NULL) {
|
|
2522 |
// just don't return the signature
|
|
2523 |
} else {
|
|
2524 |
const char* fieldSignature = fdesc_ptr->signature()->as_C_string();
|
|
2525 |
*signature_ptr = (char*) jvmtiMalloc(strlen(fieldSignature) + 1);
|
|
2526 |
if (*signature_ptr == NULL)
|
|
2527 |
return JVMTI_ERROR_OUT_OF_MEMORY;
|
|
2528 |
strcpy(*signature_ptr, fieldSignature);
|
|
2529 |
}
|
|
2530 |
if (generic_ptr != NULL) {
|
|
2531 |
*generic_ptr = NULL;
|
|
2532 |
symbolOop soop = fdesc_ptr->generic_signature();
|
|
2533 |
if (soop != NULL) {
|
|
2534 |
const char* gen_sig = soop->as_C_string();
|
|
2535 |
if (gen_sig != NULL) {
|
|
2536 |
jvmtiError err = allocate(strlen(gen_sig) + 1, (unsigned char **)generic_ptr);
|
|
2537 |
if (err != JVMTI_ERROR_NONE) {
|
|
2538 |
return err;
|
|
2539 |
}
|
|
2540 |
strcpy(*generic_ptr, gen_sig);
|
|
2541 |
}
|
|
2542 |
}
|
|
2543 |
}
|
|
2544 |
return JVMTI_ERROR_NONE;
|
|
2545 |
} /* end GetFieldName */
|
|
2546 |
|
|
2547 |
|
|
2548 |
// declaring_class_ptr - pre-checked for NULL
|
|
2549 |
jvmtiError
|
|
2550 |
JvmtiEnv::GetFieldDeclaringClass(fieldDescriptor* fdesc_ptr, jclass* declaring_class_ptr) {
|
|
2551 |
|
|
2552 |
*declaring_class_ptr = get_jni_class_non_null(fdesc_ptr->field_holder());
|
|
2553 |
return JVMTI_ERROR_NONE;
|
|
2554 |
} /* end GetFieldDeclaringClass */
|
|
2555 |
|
|
2556 |
|
|
2557 |
// modifiers_ptr - pre-checked for NULL
|
|
2558 |
jvmtiError
|
|
2559 |
JvmtiEnv::GetFieldModifiers(fieldDescriptor* fdesc_ptr, jint* modifiers_ptr) {
|
|
2560 |
|
|
2561 |
AccessFlags resultFlags = fdesc_ptr->access_flags();
|
|
2562 |
jint result = resultFlags.as_int();
|
|
2563 |
*modifiers_ptr = result;
|
|
2564 |
|
|
2565 |
return JVMTI_ERROR_NONE;
|
|
2566 |
} /* end GetFieldModifiers */
|
|
2567 |
|
|
2568 |
|
|
2569 |
// is_synthetic_ptr - pre-checked for NULL
|
|
2570 |
jvmtiError
|
|
2571 |
JvmtiEnv::IsFieldSynthetic(fieldDescriptor* fdesc_ptr, jboolean* is_synthetic_ptr) {
|
|
2572 |
*is_synthetic_ptr = fdesc_ptr->is_synthetic();
|
|
2573 |
return JVMTI_ERROR_NONE;
|
|
2574 |
} /* end IsFieldSynthetic */
|
|
2575 |
|
|
2576 |
|
|
2577 |
//
|
|
2578 |
// Method functions
|
|
2579 |
//
|
|
2580 |
|
|
2581 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2582 |
// name_ptr - NULL is a valid value, must be checked
|
|
2583 |
// signature_ptr - NULL is a valid value, must be checked
|
|
2584 |
// generic_ptr - NULL is a valid value, must be checked
|
|
2585 |
jvmtiError
|
|
2586 |
JvmtiEnv::GetMethodName(methodOop method_oop, char** name_ptr, char** signature_ptr, char** generic_ptr) {
|
|
2587 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2588 |
JavaThread* current_thread = JavaThread::current();
|
|
2589 |
|
|
2590 |
ResourceMark rm(current_thread); // get the utf8 name and signature
|
|
2591 |
if (name_ptr == NULL) {
|
|
2592 |
// just don't return the name
|
|
2593 |
} else {
|
|
2594 |
const char* utf8_name = (const char *) method_oop->name()->as_utf8();
|
|
2595 |
*name_ptr = (char *) jvmtiMalloc(strlen(utf8_name)+1);
|
|
2596 |
strcpy(*name_ptr, utf8_name);
|
|
2597 |
}
|
|
2598 |
if (signature_ptr == NULL) {
|
|
2599 |
// just don't return the signature
|
|
2600 |
} else {
|
|
2601 |
const char* utf8_signature = (const char *) method_oop->signature()->as_utf8();
|
|
2602 |
*signature_ptr = (char *) jvmtiMalloc(strlen(utf8_signature) + 1);
|
|
2603 |
strcpy(*signature_ptr, utf8_signature);
|
|
2604 |
}
|
|
2605 |
|
|
2606 |
if (generic_ptr != NULL) {
|
|
2607 |
*generic_ptr = NULL;
|
|
2608 |
symbolOop soop = method_oop->generic_signature();
|
|
2609 |
if (soop != NULL) {
|
|
2610 |
const char* gen_sig = soop->as_C_string();
|
|
2611 |
if (gen_sig != NULL) {
|
|
2612 |
jvmtiError err = allocate(strlen(gen_sig) + 1, (unsigned char **)generic_ptr);
|
|
2613 |
if (err != JVMTI_ERROR_NONE) {
|
|
2614 |
return err;
|
|
2615 |
}
|
|
2616 |
strcpy(*generic_ptr, gen_sig);
|
|
2617 |
}
|
|
2618 |
}
|
|
2619 |
}
|
|
2620 |
return JVMTI_ERROR_NONE;
|
|
2621 |
} /* end GetMethodName */
|
|
2622 |
|
|
2623 |
|
|
2624 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2625 |
// declaring_class_ptr - pre-checked for NULL
|
|
2626 |
jvmtiError
|
|
2627 |
JvmtiEnv::GetMethodDeclaringClass(methodOop method_oop, jclass* declaring_class_ptr) {
|
|
2628 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2629 |
(*declaring_class_ptr) = get_jni_class_non_null(method_oop->method_holder());
|
|
2630 |
return JVMTI_ERROR_NONE;
|
|
2631 |
} /* end GetMethodDeclaringClass */
|
|
2632 |
|
|
2633 |
|
|
2634 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2635 |
// modifiers_ptr - pre-checked for NULL
|
|
2636 |
jvmtiError
|
|
2637 |
JvmtiEnv::GetMethodModifiers(methodOop method_oop, jint* modifiers_ptr) {
|
|
2638 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2639 |
(*modifiers_ptr) = method_oop->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
|
|
2640 |
return JVMTI_ERROR_NONE;
|
|
2641 |
} /* end GetMethodModifiers */
|
|
2642 |
|
|
2643 |
|
|
2644 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2645 |
// max_ptr - pre-checked for NULL
|
|
2646 |
jvmtiError
|
|
2647 |
JvmtiEnv::GetMaxLocals(methodOop method_oop, jint* max_ptr) {
|
|
2648 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2649 |
// get max stack
|
|
2650 |
(*max_ptr) = method_oop->max_locals();
|
|
2651 |
return JVMTI_ERROR_NONE;
|
|
2652 |
} /* end GetMaxLocals */
|
|
2653 |
|
|
2654 |
|
|
2655 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2656 |
// size_ptr - pre-checked for NULL
|
|
2657 |
jvmtiError
|
|
2658 |
JvmtiEnv::GetArgumentsSize(methodOop method_oop, jint* size_ptr) {
|
|
2659 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2660 |
// get size of arguments
|
|
2661 |
|
|
2662 |
(*size_ptr) = method_oop->size_of_parameters();
|
|
2663 |
return JVMTI_ERROR_NONE;
|
|
2664 |
} /* end GetArgumentsSize */
|
|
2665 |
|
|
2666 |
|
|
2667 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2668 |
// entry_count_ptr - pre-checked for NULL
|
|
2669 |
// table_ptr - pre-checked for NULL
|
|
2670 |
jvmtiError
|
|
2671 |
JvmtiEnv::GetLineNumberTable(methodOop method_oop, jint* entry_count_ptr, jvmtiLineNumberEntry** table_ptr) {
|
|
2672 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2673 |
if (!method_oop->has_linenumber_table()) {
|
|
2674 |
return (JVMTI_ERROR_ABSENT_INFORMATION);
|
|
2675 |
}
|
|
2676 |
|
|
2677 |
// The line number table is compressed so we don't know how big it is until decompressed.
|
|
2678 |
// Decompression is really fast so we just do it twice.
|
|
2679 |
|
|
2680 |
// Compute size of table
|
|
2681 |
jint num_entries = 0;
|
|
2682 |
CompressedLineNumberReadStream stream(method_oop->compressed_linenumber_table());
|
|
2683 |
while (stream.read_pair()) {
|
|
2684 |
num_entries++;
|
|
2685 |
}
|
|
2686 |
jvmtiLineNumberEntry *jvmti_table =
|
|
2687 |
(jvmtiLineNumberEntry *)jvmtiMalloc(num_entries * (sizeof(jvmtiLineNumberEntry)));
|
|
2688 |
|
|
2689 |
// Fill jvmti table
|
|
2690 |
if (num_entries > 0) {
|
|
2691 |
int index = 0;
|
|
2692 |
CompressedLineNumberReadStream stream(method_oop->compressed_linenumber_table());
|
|
2693 |
while (stream.read_pair()) {
|
|
2694 |
jvmti_table[index].start_location = (jlocation) stream.bci();
|
|
2695 |
jvmti_table[index].line_number = (jint) stream.line();
|
|
2696 |
index++;
|
|
2697 |
}
|
|
2698 |
assert(index == num_entries, "sanity check");
|
|
2699 |
}
|
|
2700 |
|
|
2701 |
// Set up results
|
|
2702 |
(*entry_count_ptr) = num_entries;
|
|
2703 |
(*table_ptr) = jvmti_table;
|
|
2704 |
|
|
2705 |
return JVMTI_ERROR_NONE;
|
|
2706 |
} /* end GetLineNumberTable */
|
|
2707 |
|
|
2708 |
|
|
2709 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2710 |
// start_location_ptr - pre-checked for NULL
|
|
2711 |
// end_location_ptr - pre-checked for NULL
|
|
2712 |
jvmtiError
|
|
2713 |
JvmtiEnv::GetMethodLocation(methodOop method_oop, jlocation* start_location_ptr, jlocation* end_location_ptr) {
|
|
2714 |
|
|
2715 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2716 |
// get start and end location
|
|
2717 |
(*end_location_ptr) = (jlocation) (method_oop->code_size() - 1);
|
|
2718 |
if (method_oop->code_size() == 0) {
|
|
2719 |
// there is no code so there is no start location
|
|
2720 |
(*start_location_ptr) = (jlocation)(-1);
|
|
2721 |
} else {
|
|
2722 |
(*start_location_ptr) = (jlocation)(0);
|
|
2723 |
}
|
|
2724 |
|
|
2725 |
return JVMTI_ERROR_NONE;
|
|
2726 |
} /* end GetMethodLocation */
|
|
2727 |
|
|
2728 |
|
|
2729 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2730 |
// entry_count_ptr - pre-checked for NULL
|
|
2731 |
// table_ptr - pre-checked for NULL
|
|
2732 |
jvmtiError
|
|
2733 |
JvmtiEnv::GetLocalVariableTable(methodOop method_oop, jint* entry_count_ptr, jvmtiLocalVariableEntry** table_ptr) {
|
|
2734 |
|
|
2735 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2736 |
JavaThread* current_thread = JavaThread::current();
|
|
2737 |
|
|
2738 |
// does the klass have any local variable information?
|
|
2739 |
instanceKlass* ik = instanceKlass::cast(method_oop->method_holder());
|
|
2740 |
if (!ik->access_flags().has_localvariable_table()) {
|
|
2741 |
return (JVMTI_ERROR_ABSENT_INFORMATION);
|
|
2742 |
}
|
|
2743 |
|
|
2744 |
constantPoolOop constants = method_oop->constants();
|
|
2745 |
NULL_CHECK(constants, JVMTI_ERROR_ABSENT_INFORMATION);
|
|
2746 |
|
|
2747 |
// in the vm localvariable table representation, 6 consecutive elements in the table
|
|
2748 |
// represent a 6-tuple of shorts
|
|
2749 |
// [start_pc, length, name_index, descriptor_index, signature_index, index]
|
|
2750 |
jint num_entries = method_oop->localvariable_table_length();
|
|
2751 |
jvmtiLocalVariableEntry *jvmti_table = (jvmtiLocalVariableEntry *)
|
|
2752 |
jvmtiMalloc(num_entries * (sizeof(jvmtiLocalVariableEntry)));
|
|
2753 |
|
|
2754 |
if (num_entries > 0) {
|
|
2755 |
LocalVariableTableElement* table = method_oop->localvariable_table_start();
|
|
2756 |
for (int i = 0; i < num_entries; i++) {
|
|
2757 |
// get the 5 tuple information from the vm table
|
|
2758 |
jlocation start_location = (jlocation) table[i].start_bci;
|
|
2759 |
jint length = (jint) table[i].length;
|
|
2760 |
int name_index = (int) table[i].name_cp_index;
|
|
2761 |
int signature_index = (int) table[i].descriptor_cp_index;
|
|
2762 |
int generic_signature_index = (int) table[i].signature_cp_index;
|
|
2763 |
jint slot = (jint) table[i].slot;
|
|
2764 |
|
|
2765 |
// get utf8 name and signature
|
|
2766 |
char *name_buf = NULL;
|
|
2767 |
char *sig_buf = NULL;
|
|
2768 |
char *gen_sig_buf = NULL;
|
|
2769 |
{
|
|
2770 |
ResourceMark rm(current_thread);
|
|
2771 |
|
|
2772 |
const char *utf8_name = (const char *) constants->symbol_at(name_index)->as_utf8();
|
|
2773 |
name_buf = (char *) jvmtiMalloc(strlen(utf8_name)+1);
|
|
2774 |
strcpy(name_buf, utf8_name);
|
|
2775 |
|
|
2776 |
const char *utf8_signature = (const char *) constants->symbol_at(signature_index)->as_utf8();
|
|
2777 |
sig_buf = (char *) jvmtiMalloc(strlen(utf8_signature)+1);
|
|
2778 |
strcpy(sig_buf, utf8_signature);
|
|
2779 |
|
|
2780 |
if (generic_signature_index > 0) {
|
|
2781 |
const char *utf8_gen_sign = (const char *)
|
|
2782 |
constants->symbol_at(generic_signature_index)->as_utf8();
|
|
2783 |
gen_sig_buf = (char *) jvmtiMalloc(strlen(utf8_gen_sign)+1);
|
|
2784 |
strcpy(gen_sig_buf, utf8_gen_sign);
|
|
2785 |
}
|
|
2786 |
}
|
|
2787 |
|
|
2788 |
// fill in the jvmti local variable table
|
|
2789 |
jvmti_table[i].start_location = start_location;
|
|
2790 |
jvmti_table[i].length = length;
|
|
2791 |
jvmti_table[i].name = name_buf;
|
|
2792 |
jvmti_table[i].signature = sig_buf;
|
|
2793 |
jvmti_table[i].generic_signature = gen_sig_buf;
|
|
2794 |
jvmti_table[i].slot = slot;
|
|
2795 |
}
|
|
2796 |
}
|
|
2797 |
|
|
2798 |
// set results
|
|
2799 |
(*entry_count_ptr) = num_entries;
|
|
2800 |
(*table_ptr) = jvmti_table;
|
|
2801 |
|
|
2802 |
return JVMTI_ERROR_NONE;
|
|
2803 |
} /* end GetLocalVariableTable */
|
|
2804 |
|
|
2805 |
|
|
2806 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2807 |
// bytecode_count_ptr - pre-checked for NULL
|
|
2808 |
// bytecodes_ptr - pre-checked for NULL
|
|
2809 |
jvmtiError
|
|
2810 |
JvmtiEnv::GetBytecodes(methodOop method_oop, jint* bytecode_count_ptr, unsigned char** bytecodes_ptr) {
|
|
2811 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2812 |
|
|
2813 |
HandleMark hm;
|
|
2814 |
methodHandle method(method_oop);
|
|
2815 |
jint size = (jint)method->code_size();
|
|
2816 |
jvmtiError err = allocate(size, bytecodes_ptr);
|
|
2817 |
if (err != JVMTI_ERROR_NONE) {
|
|
2818 |
return err;
|
|
2819 |
}
|
|
2820 |
|
|
2821 |
(*bytecode_count_ptr) = size;
|
|
2822 |
// get byte codes
|
|
2823 |
JvmtiClassFileReconstituter::copy_bytecodes(method, *bytecodes_ptr);
|
|
2824 |
|
|
2825 |
return JVMTI_ERROR_NONE;
|
|
2826 |
} /* end GetBytecodes */
|
|
2827 |
|
|
2828 |
|
|
2829 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2830 |
// is_native_ptr - pre-checked for NULL
|
|
2831 |
jvmtiError
|
|
2832 |
JvmtiEnv::IsMethodNative(methodOop method_oop, jboolean* is_native_ptr) {
|
|
2833 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2834 |
(*is_native_ptr) = method_oop->is_native();
|
|
2835 |
return JVMTI_ERROR_NONE;
|
|
2836 |
} /* end IsMethodNative */
|
|
2837 |
|
|
2838 |
|
|
2839 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2840 |
// is_synthetic_ptr - pre-checked for NULL
|
|
2841 |
jvmtiError
|
|
2842 |
JvmtiEnv::IsMethodSynthetic(methodOop method_oop, jboolean* is_synthetic_ptr) {
|
|
2843 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID);
|
|
2844 |
(*is_synthetic_ptr) = method_oop->is_synthetic();
|
|
2845 |
return JVMTI_ERROR_NONE;
|
|
2846 |
} /* end IsMethodSynthetic */
|
|
2847 |
|
|
2848 |
|
|
2849 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method
|
|
2850 |
// is_obsolete_ptr - pre-checked for NULL
|
|
2851 |
jvmtiError
|
|
2852 |
JvmtiEnv::IsMethodObsolete(methodOop method_oop, jboolean* is_obsolete_ptr) {
|
|
2853 |
if (method_oop == NULL || method_oop->is_obsolete()) {
|
|
2854 |
*is_obsolete_ptr = true;
|
|
2855 |
} else {
|
|
2856 |
*is_obsolete_ptr = false;
|
|
2857 |
}
|
|
2858 |
return JVMTI_ERROR_NONE;
|
|
2859 |
} /* end IsMethodObsolete */
|
|
2860 |
|
|
2861 |
//
|
|
2862 |
// Raw Monitor functions
|
|
2863 |
//
|
|
2864 |
|
|
2865 |
// name - pre-checked for NULL
|
|
2866 |
// monitor_ptr - pre-checked for NULL
|
|
2867 |
jvmtiError
|
|
2868 |
JvmtiEnv::CreateRawMonitor(const char* name, jrawMonitorID* monitor_ptr) {
|
|
2869 |
JvmtiRawMonitor* rmonitor = new JvmtiRawMonitor(name);
|
|
2870 |
NULL_CHECK(rmonitor, JVMTI_ERROR_OUT_OF_MEMORY);
|
|
2871 |
|
|
2872 |
*monitor_ptr = (jrawMonitorID)rmonitor;
|
|
2873 |
|
|
2874 |
return JVMTI_ERROR_NONE;
|
|
2875 |
} /* end CreateRawMonitor */
|
|
2876 |
|
|
2877 |
|
|
2878 |
// rmonitor - pre-checked for validity
|
|
2879 |
jvmtiError
|
|
2880 |
JvmtiEnv::DestroyRawMonitor(JvmtiRawMonitor * rmonitor) {
|
|
2881 |
if (Threads::number_of_threads() == 0) {
|
|
2882 |
// Remove this monitor from pending raw monitors list
|
|
2883 |
// if it has entered in onload or start phase.
|
|
2884 |
JvmtiPendingMonitors::destroy(rmonitor);
|
|
2885 |
} else {
|
|
2886 |
Thread* thread = Thread::current();
|
|
2887 |
if (rmonitor->is_entered(thread)) {
|
|
2888 |
// The caller owns this monitor which we are about to destroy.
|
|
2889 |
// We exit the underlying synchronization object so that the
|
|
2890 |
// "delete monitor" call below can work without an assertion
|
|
2891 |
// failure on systems that don't like destroying synchronization
|
|
2892 |
// objects that are locked.
|
|
2893 |
int r;
|
|
2894 |
intptr_t recursion = rmonitor->recursions();
|
|
2895 |
for (intptr_t i=0; i <= recursion; i++) {
|
|
2896 |
r = rmonitor->raw_exit(thread);
|
|
2897 |
assert(r == ObjectMonitor::OM_OK, "raw_exit should have worked");
|
|
2898 |
if (r != ObjectMonitor::OM_OK) { // robustness
|
|
2899 |
return JVMTI_ERROR_INTERNAL;
|
|
2900 |
}
|
|
2901 |
}
|
|
2902 |
}
|
|
2903 |
if (rmonitor->owner() != NULL) {
|
|
2904 |
// The caller is trying to destroy a monitor that is locked by
|
|
2905 |
// someone else. While this is not forbidden by the JVMTI
|
|
2906 |
// spec, it will cause an assertion failure on systems that don't
|
|
2907 |
// like destroying synchronization objects that are locked.
|
|
2908 |
// We indicate a problem with the error return (and leak the
|
|
2909 |
// monitor's memory).
|
|
2910 |
return JVMTI_ERROR_NOT_MONITOR_OWNER;
|
|
2911 |
}
|
|
2912 |
}
|
|
2913 |
|
|
2914 |
delete rmonitor;
|
|
2915 |
|
|
2916 |
return JVMTI_ERROR_NONE;
|
|
2917 |
} /* end DestroyRawMonitor */
|
|
2918 |
|
|
2919 |
|
|
2920 |
// rmonitor - pre-checked for validity
|
|
2921 |
jvmtiError
|
|
2922 |
JvmtiEnv::RawMonitorEnter(JvmtiRawMonitor * rmonitor) {
|
|
2923 |
if (Threads::number_of_threads() == 0) {
|
|
2924 |
// No JavaThreads exist so ObjectMonitor enter cannot be
|
|
2925 |
// used, add this raw monitor to the pending list.
|
|
2926 |
// The pending monitors will be actually entered when
|
|
2927 |
// the VM is setup.
|
|
2928 |
// See transition_pending_raw_monitors in create_vm()
|
|
2929 |
// in thread.cpp.
|
|
2930 |
JvmtiPendingMonitors::enter(rmonitor);
|
|
2931 |
} else {
|
|
2932 |
int r;
|
|
2933 |
Thread* thread = Thread::current();
|
|
2934 |
|
|
2935 |
if (thread->is_Java_thread()) {
|
|
2936 |
JavaThread* current_thread = (JavaThread*)thread;
|
|
2937 |
|
|
2938 |
#ifdef PROPER_TRANSITIONS
|
|
2939 |
// Not really unknown but ThreadInVMfromNative does more than we want
|
|
2940 |
ThreadInVMfromUnknown __tiv;
|
|
2941 |
{
|
|
2942 |
ThreadBlockInVM __tbivm(current_thread);
|
|
2943 |
r = rmonitor->raw_enter(current_thread);
|
|
2944 |
}
|
|
2945 |
#else
|
|
2946 |
/* Transition to thread_blocked without entering vm state */
|
|
2947 |
/* This is really evil. Normally you can't undo _thread_blocked */
|
|
2948 |
/* transitions like this because it would cause us to miss a */
|
|
2949 |
/* safepoint but since the thread was already in _thread_in_native */
|
|
2950 |
/* the thread is not leaving a safepoint safe state and it will */
|
|
2951 |
/* block when it tries to return from native. We can't safepoint */
|
|
2952 |
/* block in here because we could deadlock the vmthread. Blech. */
|
|
2953 |
|
|
2954 |
JavaThreadState state = current_thread->thread_state();
|
|
2955 |
assert(state == _thread_in_native, "Must be _thread_in_native");
|
|
2956 |
// frame should already be walkable since we are in native
|
|
2957 |
assert(!current_thread->has_last_Java_frame() ||
|
|
2958 |
current_thread->frame_anchor()->walkable(), "Must be walkable");
|
|
2959 |
current_thread->set_thread_state(_thread_blocked);
|
|
2960 |
|
|
2961 |
r = rmonitor->raw_enter(current_thread);
|
|
2962 |
// restore state, still at a safepoint safe state
|
|
2963 |
current_thread->set_thread_state(state);
|
|
2964 |
|
|
2965 |
#endif /* PROPER_TRANSITIONS */
|
|
2966 |
assert(r == ObjectMonitor::OM_OK, "raw_enter should have worked");
|
|
2967 |
} else {
|
|
2968 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) {
|
|
2969 |
r = rmonitor->raw_enter(thread);
|
|
2970 |
} else {
|
|
2971 |
ShouldNotReachHere();
|
|
2972 |
}
|
|
2973 |
}
|
|
2974 |
|
|
2975 |
if (r != ObjectMonitor::OM_OK) { // robustness
|
|
2976 |
return JVMTI_ERROR_INTERNAL;
|
|
2977 |
}
|
|
2978 |
}
|
|
2979 |
return JVMTI_ERROR_NONE;
|
|
2980 |
} /* end RawMonitorEnter */
|
|
2981 |
|
|
2982 |
|
|
2983 |
// rmonitor - pre-checked for validity
|
|
2984 |
jvmtiError
|
|
2985 |
JvmtiEnv::RawMonitorExit(JvmtiRawMonitor * rmonitor) {
|
|
2986 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
2987 |
|
|
2988 |
if (Threads::number_of_threads() == 0) {
|
|
2989 |
// No JavaThreads exist so just remove this monitor from the pending list.
|
|
2990 |
// Bool value from exit is false if rmonitor is not in the list.
|
|
2991 |
if (!JvmtiPendingMonitors::exit(rmonitor)) {
|
|
2992 |
err = JVMTI_ERROR_NOT_MONITOR_OWNER;
|
|
2993 |
}
|
|
2994 |
} else {
|
|
2995 |
int r;
|
|
2996 |
Thread* thread = Thread::current();
|
|
2997 |
|
|
2998 |
if (thread->is_Java_thread()) {
|
|
2999 |
JavaThread* current_thread = (JavaThread*)thread;
|
|
3000 |
#ifdef PROPER_TRANSITIONS
|
|
3001 |
// Not really unknown but ThreadInVMfromNative does more than we want
|
|
3002 |
ThreadInVMfromUnknown __tiv;
|
|
3003 |
#endif /* PROPER_TRANSITIONS */
|
|
3004 |
r = rmonitor->raw_exit(current_thread);
|
|
3005 |
} else {
|
|
3006 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) {
|
|
3007 |
r = rmonitor->raw_exit(thread);
|
|
3008 |
} else {
|
|
3009 |
ShouldNotReachHere();
|
|
3010 |
}
|
|
3011 |
}
|
|
3012 |
|
|
3013 |
if (r == ObjectMonitor::OM_ILLEGAL_MONITOR_STATE) {
|
|
3014 |
err = JVMTI_ERROR_NOT_MONITOR_OWNER;
|
|
3015 |
} else {
|
|
3016 |
assert(r == ObjectMonitor::OM_OK, "raw_exit should have worked");
|
|
3017 |
if (r != ObjectMonitor::OM_OK) { // robustness
|
|
3018 |
err = JVMTI_ERROR_INTERNAL;
|
|
3019 |
}
|
|
3020 |
}
|
|
3021 |
}
|
|
3022 |
return err;
|
|
3023 |
} /* end RawMonitorExit */
|
|
3024 |
|
|
3025 |
|
|
3026 |
// rmonitor - pre-checked for validity
|
|
3027 |
jvmtiError
|
|
3028 |
JvmtiEnv::RawMonitorWait(JvmtiRawMonitor * rmonitor, jlong millis) {
|
|
3029 |
int r;
|
|
3030 |
Thread* thread = Thread::current();
|
|
3031 |
|
|
3032 |
if (thread->is_Java_thread()) {
|
|
3033 |
JavaThread* current_thread = (JavaThread*)thread;
|
|
3034 |
#ifdef PROPER_TRANSITIONS
|
|
3035 |
// Not really unknown but ThreadInVMfromNative does more than we want
|
|
3036 |
ThreadInVMfromUnknown __tiv;
|
|
3037 |
{
|
|
3038 |
ThreadBlockInVM __tbivm(current_thread);
|
|
3039 |
r = rmonitor->raw_wait(millis, true, current_thread);
|
|
3040 |
}
|
|
3041 |
#else
|
|
3042 |
/* Transition to thread_blocked without entering vm state */
|
|
3043 |
/* This is really evil. Normally you can't undo _thread_blocked */
|
|
3044 |
/* transitions like this because it would cause us to miss a */
|
|
3045 |
/* safepoint but since the thread was already in _thread_in_native */
|
|
3046 |
/* the thread is not leaving a safepoint safe state and it will */
|
|
3047 |
/* block when it tries to return from native. We can't safepoint */
|
|
3048 |
/* block in here because we could deadlock the vmthread. Blech. */
|
|
3049 |
|
|
3050 |
JavaThreadState state = current_thread->thread_state();
|
|
3051 |
assert(state == _thread_in_native, "Must be _thread_in_native");
|
|
3052 |
// frame should already be walkable since we are in native
|
|
3053 |
assert(!current_thread->has_last_Java_frame() ||
|
|
3054 |
current_thread->frame_anchor()->walkable(), "Must be walkable");
|
|
3055 |
current_thread->set_thread_state(_thread_blocked);
|
|
3056 |
|
|
3057 |
r = rmonitor->raw_wait(millis, true, current_thread);
|
|
3058 |
// restore state, still at a safepoint safe state
|
|
3059 |
current_thread->set_thread_state(state);
|
|
3060 |
|
|
3061 |
#endif /* PROPER_TRANSITIONS */
|
|
3062 |
} else {
|
|
3063 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) {
|
|
3064 |
r = rmonitor->raw_wait(millis, true, thread);
|
|
3065 |
} else {
|
|
3066 |
ShouldNotReachHere();
|
|
3067 |
}
|
|
3068 |
}
|
|
3069 |
|
|
3070 |
switch (r) {
|
|
3071 |
case ObjectMonitor::OM_INTERRUPTED:
|
|
3072 |
return JVMTI_ERROR_INTERRUPT;
|
|
3073 |
case ObjectMonitor::OM_ILLEGAL_MONITOR_STATE:
|
|
3074 |
return JVMTI_ERROR_NOT_MONITOR_OWNER;
|
|
3075 |
}
|
|
3076 |
assert(r == ObjectMonitor::OM_OK, "raw_wait should have worked");
|
|
3077 |
if (r != ObjectMonitor::OM_OK) { // robustness
|
|
3078 |
return JVMTI_ERROR_INTERNAL;
|
|
3079 |
}
|
|
3080 |
|
|
3081 |
return JVMTI_ERROR_NONE;
|
|
3082 |
} /* end RawMonitorWait */
|
|
3083 |
|
|
3084 |
|
|
3085 |
// rmonitor - pre-checked for validity
|
|
3086 |
jvmtiError
|
|
3087 |
JvmtiEnv::RawMonitorNotify(JvmtiRawMonitor * rmonitor) {
|
|
3088 |
int r;
|
|
3089 |
Thread* thread = Thread::current();
|
|
3090 |
|
|
3091 |
if (thread->is_Java_thread()) {
|
|
3092 |
JavaThread* current_thread = (JavaThread*)thread;
|
|
3093 |
// Not really unknown but ThreadInVMfromNative does more than we want
|
|
3094 |
ThreadInVMfromUnknown __tiv;
|
|
3095 |
r = rmonitor->raw_notify(current_thread);
|
|
3096 |
} else {
|
|
3097 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) {
|
|
3098 |
r = rmonitor->raw_notify(thread);
|
|
3099 |
} else {
|
|
3100 |
ShouldNotReachHere();
|
|
3101 |
}
|
|
3102 |
}
|
|
3103 |
|
|
3104 |
if (r == ObjectMonitor::OM_ILLEGAL_MONITOR_STATE) {
|
|
3105 |
return JVMTI_ERROR_NOT_MONITOR_OWNER;
|
|
3106 |
}
|
|
3107 |
assert(r == ObjectMonitor::OM_OK, "raw_notify should have worked");
|
|
3108 |
if (r != ObjectMonitor::OM_OK) { // robustness
|
|
3109 |
return JVMTI_ERROR_INTERNAL;
|
|
3110 |
}
|
|
3111 |
|
|
3112 |
return JVMTI_ERROR_NONE;
|
|
3113 |
} /* end RawMonitorNotify */
|
|
3114 |
|
|
3115 |
|
|
3116 |
// rmonitor - pre-checked for validity
|
|
3117 |
jvmtiError
|
|
3118 |
JvmtiEnv::RawMonitorNotifyAll(JvmtiRawMonitor * rmonitor) {
|
|
3119 |
int r;
|
|
3120 |
Thread* thread = Thread::current();
|
|
3121 |
|
|
3122 |
if (thread->is_Java_thread()) {
|
|
3123 |
JavaThread* current_thread = (JavaThread*)thread;
|
|
3124 |
ThreadInVMfromUnknown __tiv;
|
|
3125 |
r = rmonitor->raw_notifyAll(current_thread);
|
|
3126 |
} else {
|
|
3127 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) {
|
|
3128 |
r = rmonitor->raw_notifyAll(thread);
|
|
3129 |
} else {
|
|
3130 |
ShouldNotReachHere();
|
|
3131 |
}
|
|
3132 |
}
|
|
3133 |
|
|
3134 |
if (r == ObjectMonitor::OM_ILLEGAL_MONITOR_STATE) {
|
|
3135 |
return JVMTI_ERROR_NOT_MONITOR_OWNER;
|
|
3136 |
}
|
|
3137 |
assert(r == ObjectMonitor::OM_OK, "raw_notifyAll should have worked");
|
|
3138 |
if (r != ObjectMonitor::OM_OK) { // robustness
|
|
3139 |
return JVMTI_ERROR_INTERNAL;
|
|
3140 |
}
|
|
3141 |
|
|
3142 |
return JVMTI_ERROR_NONE;
|
|
3143 |
} /* end RawMonitorNotifyAll */
|
|
3144 |
|
|
3145 |
|
|
3146 |
//
|
|
3147 |
// JNI Function Interception functions
|
|
3148 |
//
|
|
3149 |
|
|
3150 |
|
|
3151 |
// function_table - pre-checked for NULL
|
|
3152 |
jvmtiError
|
|
3153 |
JvmtiEnv::SetJNIFunctionTable(const jniNativeInterface* function_table) {
|
|
3154 |
// Copy jni function table at safepoint.
|
|
3155 |
VM_JNIFunctionTableCopier copier(function_table);
|
|
3156 |
VMThread::execute(&copier);
|
|
3157 |
|
|
3158 |
return JVMTI_ERROR_NONE;
|
|
3159 |
} /* end SetJNIFunctionTable */
|
|
3160 |
|
|
3161 |
|
|
3162 |
// function_table - pre-checked for NULL
|
|
3163 |
jvmtiError
|
|
3164 |
JvmtiEnv::GetJNIFunctionTable(jniNativeInterface** function_table) {
|
|
3165 |
*function_table=(jniNativeInterface*)jvmtiMalloc(sizeof(jniNativeInterface));
|
|
3166 |
if (*function_table == NULL)
|
|
3167 |
return JVMTI_ERROR_OUT_OF_MEMORY;
|
|
3168 |
memcpy(*function_table,(JavaThread::current())->get_jni_functions(),sizeof(jniNativeInterface));
|
|
3169 |
return JVMTI_ERROR_NONE;
|
|
3170 |
} /* end GetJNIFunctionTable */
|
|
3171 |
|
|
3172 |
|
|
3173 |
//
|
|
3174 |
// Event Management functions
|
|
3175 |
//
|
|
3176 |
|
|
3177 |
jvmtiError
|
|
3178 |
JvmtiEnv::GenerateEvents(jvmtiEvent event_type) {
|
|
3179 |
// can only generate two event types
|
|
3180 |
if (event_type != JVMTI_EVENT_COMPILED_METHOD_LOAD &&
|
|
3181 |
event_type != JVMTI_EVENT_DYNAMIC_CODE_GENERATED) {
|
|
3182 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT;
|
|
3183 |
}
|
|
3184 |
|
|
3185 |
// for compiled_method_load events we must check that the environment
|
|
3186 |
// has the can_generate_compiled_method_load_events capability.
|
|
3187 |
if (event_type == JVMTI_EVENT_COMPILED_METHOD_LOAD) {
|
|
3188 |
if (get_capabilities()->can_generate_compiled_method_load_events == 0) {
|
|
3189 |
return JVMTI_ERROR_MUST_POSSESS_CAPABILITY;
|
|
3190 |
}
|
|
3191 |
return JvmtiCodeBlobEvents::generate_compiled_method_load_events(this);
|
|
3192 |
} else {
|
|
3193 |
return JvmtiCodeBlobEvents::generate_dynamic_code_events(this);
|
|
3194 |
}
|
|
3195 |
|
|
3196 |
} /* end GenerateEvents */
|
|
3197 |
|
|
3198 |
|
|
3199 |
//
|
|
3200 |
// Extension Mechanism functions
|
|
3201 |
//
|
|
3202 |
|
|
3203 |
// extension_count_ptr - pre-checked for NULL
|
|
3204 |
// extensions - pre-checked for NULL
|
|
3205 |
jvmtiError
|
|
3206 |
JvmtiEnv::GetExtensionFunctions(jint* extension_count_ptr, jvmtiExtensionFunctionInfo** extensions) {
|
|
3207 |
return JvmtiExtensions::get_functions(this, extension_count_ptr, extensions);
|
|
3208 |
} /* end GetExtensionFunctions */
|
|
3209 |
|
|
3210 |
|
|
3211 |
// extension_count_ptr - pre-checked for NULL
|
|
3212 |
// extensions - pre-checked for NULL
|
|
3213 |
jvmtiError
|
|
3214 |
JvmtiEnv::GetExtensionEvents(jint* extension_count_ptr, jvmtiExtensionEventInfo** extensions) {
|
|
3215 |
return JvmtiExtensions::get_events(this, extension_count_ptr, extensions);
|
|
3216 |
} /* end GetExtensionEvents */
|
|
3217 |
|
|
3218 |
|
|
3219 |
// callback - NULL is a valid value, must be checked
|
|
3220 |
jvmtiError
|
|
3221 |
JvmtiEnv::SetExtensionEventCallback(jint extension_event_index, jvmtiExtensionEvent callback) {
|
|
3222 |
return JvmtiExtensions::set_event_callback(this, extension_event_index, callback);
|
|
3223 |
} /* end SetExtensionEventCallback */
|
|
3224 |
|
|
3225 |
//
|
|
3226 |
// Timers functions
|
|
3227 |
//
|
|
3228 |
|
|
3229 |
// info_ptr - pre-checked for NULL
|
|
3230 |
jvmtiError
|
|
3231 |
JvmtiEnv::GetCurrentThreadCpuTimerInfo(jvmtiTimerInfo* info_ptr) {
|
|
3232 |
os::current_thread_cpu_time_info(info_ptr);
|
|
3233 |
return JVMTI_ERROR_NONE;
|
|
3234 |
} /* end GetCurrentThreadCpuTimerInfo */
|
|
3235 |
|
|
3236 |
|
|
3237 |
// nanos_ptr - pre-checked for NULL
|
|
3238 |
jvmtiError
|
|
3239 |
JvmtiEnv::GetCurrentThreadCpuTime(jlong* nanos_ptr) {
|
|
3240 |
*nanos_ptr = os::current_thread_cpu_time();
|
|
3241 |
return JVMTI_ERROR_NONE;
|
|
3242 |
} /* end GetCurrentThreadCpuTime */
|
|
3243 |
|
|
3244 |
|
|
3245 |
// info_ptr - pre-checked for NULL
|
|
3246 |
jvmtiError
|
|
3247 |
JvmtiEnv::GetThreadCpuTimerInfo(jvmtiTimerInfo* info_ptr) {
|
|
3248 |
os::thread_cpu_time_info(info_ptr);
|
|
3249 |
return JVMTI_ERROR_NONE;
|
|
3250 |
} /* end GetThreadCpuTimerInfo */
|
|
3251 |
|
|
3252 |
|
|
3253 |
// Threads_lock NOT held, java_thread not protected by lock
|
|
3254 |
// java_thread - pre-checked
|
|
3255 |
// nanos_ptr - pre-checked for NULL
|
|
3256 |
jvmtiError
|
|
3257 |
JvmtiEnv::GetThreadCpuTime(JavaThread* java_thread, jlong* nanos_ptr) {
|
|
3258 |
*nanos_ptr = os::thread_cpu_time(java_thread);
|
|
3259 |
return JVMTI_ERROR_NONE;
|
|
3260 |
} /* end GetThreadCpuTime */
|
|
3261 |
|
|
3262 |
|
|
3263 |
// info_ptr - pre-checked for NULL
|
|
3264 |
jvmtiError
|
|
3265 |
JvmtiEnv::GetTimerInfo(jvmtiTimerInfo* info_ptr) {
|
|
3266 |
os::javaTimeNanos_info(info_ptr);
|
|
3267 |
return JVMTI_ERROR_NONE;
|
|
3268 |
} /* end GetTimerInfo */
|
|
3269 |
|
|
3270 |
|
|
3271 |
// nanos_ptr - pre-checked for NULL
|
|
3272 |
jvmtiError
|
|
3273 |
JvmtiEnv::GetTime(jlong* nanos_ptr) {
|
|
3274 |
*nanos_ptr = os::javaTimeNanos();
|
|
3275 |
return JVMTI_ERROR_NONE;
|
|
3276 |
} /* end GetTime */
|
|
3277 |
|
|
3278 |
|
|
3279 |
// processor_count_ptr - pre-checked for NULL
|
|
3280 |
jvmtiError
|
|
3281 |
JvmtiEnv::GetAvailableProcessors(jint* processor_count_ptr) {
|
|
3282 |
*processor_count_ptr = os::active_processor_count();
|
|
3283 |
return JVMTI_ERROR_NONE;
|
|
3284 |
} /* end GetAvailableProcessors */
|
|
3285 |
|
|
3286 |
//
|
|
3287 |
// System Properties functions
|
|
3288 |
//
|
|
3289 |
|
|
3290 |
// count_ptr - pre-checked for NULL
|
|
3291 |
// property_ptr - pre-checked for NULL
|
|
3292 |
jvmtiError
|
|
3293 |
JvmtiEnv::GetSystemProperties(jint* count_ptr, char*** property_ptr) {
|
|
3294 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
3295 |
|
|
3296 |
*count_ptr = Arguments::PropertyList_count(Arguments::system_properties());
|
|
3297 |
|
|
3298 |
err = allocate(*count_ptr * sizeof(char *), (unsigned char **)property_ptr);
|
|
3299 |
if (err != JVMTI_ERROR_NONE) {
|
|
3300 |
return err;
|
|
3301 |
}
|
|
3302 |
int i = 0 ;
|
|
3303 |
for (SystemProperty* p = Arguments::system_properties(); p != NULL && i < *count_ptr; p = p->next(), i++) {
|
|
3304 |
const char *key = p->key();
|
|
3305 |
char **tmp_value = *property_ptr+i;
|
|
3306 |
err = allocate((strlen(key)+1) * sizeof(char), (unsigned char**)tmp_value);
|
|
3307 |
if (err == JVMTI_ERROR_NONE) {
|
|
3308 |
strcpy(*tmp_value, key);
|
|
3309 |
} else {
|
|
3310 |
// clean up previously allocated memory.
|
|
3311 |
for (int j=0; j<i; j++) {
|
|
3312 |
Deallocate((unsigned char*)*property_ptr+j);
|
|
3313 |
}
|
|
3314 |
Deallocate((unsigned char*)property_ptr);
|
|
3315 |
break;
|
|
3316 |
}
|
|
3317 |
}
|
|
3318 |
return err;
|
|
3319 |
} /* end GetSystemProperties */
|
|
3320 |
|
|
3321 |
|
|
3322 |
// property - pre-checked for NULL
|
|
3323 |
// value_ptr - pre-checked for NULL
|
|
3324 |
jvmtiError
|
|
3325 |
JvmtiEnv::GetSystemProperty(const char* property, char** value_ptr) {
|
|
3326 |
jvmtiError err = JVMTI_ERROR_NONE;
|
|
3327 |
const char *value;
|
|
3328 |
|
|
3329 |
value = Arguments::PropertyList_get_value(Arguments::system_properties(), property);
|
|
3330 |
if (value == NULL) {
|
|
3331 |
err = JVMTI_ERROR_NOT_AVAILABLE;
|
|
3332 |
} else {
|
|
3333 |
err = allocate((strlen(value)+1) * sizeof(char), (unsigned char **)value_ptr);
|
|
3334 |
if (err == JVMTI_ERROR_NONE) {
|
|
3335 |
strcpy(*value_ptr, value);
|
|
3336 |
}
|
|
3337 |
}
|
|
3338 |
return err;
|
|
3339 |
} /* end GetSystemProperty */
|
|
3340 |
|
|
3341 |
|
|
3342 |
// property - pre-checked for NULL
|
|
3343 |
// value - NULL is a valid value, must be checked
|
|
3344 |
jvmtiError
|
|
3345 |
JvmtiEnv::SetSystemProperty(const char* property, const char* value) {
|
|
3346 |
jvmtiError err =JVMTI_ERROR_NOT_AVAILABLE;
|
|
3347 |
|
|
3348 |
for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) {
|
|
3349 |
if (strcmp(property, p->key()) == 0) {
|
|
3350 |
if (p->set_value((char *)value)) {
|
|
3351 |
err = JVMTI_ERROR_NONE;
|
|
3352 |
}
|
|
3353 |
}
|
|
3354 |
}
|
|
3355 |
return err;
|
|
3356 |
} /* end SetSystemProperty */
|
|
3357 |
|
|
3358 |
#endif // !JVMTI_KERNEL
|