author | stefank |
Wed, 07 Mar 2018 21:57:36 +0100 | |
changeset 49359 | 59f6547e151f |
parent 49192 | 6734eeef4283 |
child 49449 | ef5d5d343e2a |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 2003, 2018, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "classfile/classLoaderExt.hpp" |
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#include "classfile/javaClasses.inline.hpp" |
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#include "classfile/stringTable.hpp" |
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#include "classfile/modules.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "classfile/vmSymbols.hpp" |
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#include "interpreter/bytecodeStream.hpp" |
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#include "interpreter/interpreter.hpp" |
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#include "jvmtifiles/jvmtiEnv.hpp" |
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#include "logging/log.hpp" |
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#include "logging/logConfiguration.hpp" |
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#include "memory/resourceArea.hpp" |
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#include "memory/universe.hpp" |
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#include "oops/instanceKlass.hpp" |
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#include "oops/objArrayOop.inline.hpp" |
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#include "oops/oop.inline.hpp" |
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#include "prims/jniCheck.hpp" |
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#include "prims/jvm_misc.hpp" |
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#include "prims/jvmtiAgentThread.hpp" |
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#include "prims/jvmtiClassFileReconstituter.hpp" |
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#include "prims/jvmtiCodeBlobEvents.hpp" |
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#include "prims/jvmtiExtensions.hpp" |
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#include "prims/jvmtiGetLoadedClasses.hpp" |
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#include "prims/jvmtiImpl.hpp" |
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#include "prims/jvmtiManageCapabilities.hpp" |
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#include "prims/jvmtiRawMonitor.hpp" |
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#include "prims/jvmtiRedefineClasses.hpp" |
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#include "prims/jvmtiTagMap.hpp" |
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#include "prims/jvmtiThreadState.inline.hpp" |
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#include "prims/jvmtiUtil.hpp" |
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#include "runtime/arguments.hpp" |
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#include "runtime/deoptimization.hpp" |
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#include "runtime/interfaceSupport.hpp" |
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#include "runtime/javaCalls.hpp" |
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#include "runtime/jfieldIDWorkaround.hpp" |
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#include "runtime/jniHandles.inline.hpp" |
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#include "runtime/osThread.hpp" |
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#include "runtime/reflectionUtils.hpp" |
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#include "runtime/signature.hpp" |
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#include "runtime/thread.inline.hpp" |
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#include "runtime/threadSMR.hpp" |
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#include "runtime/timerTrace.hpp" |
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#include "runtime/vframe.hpp" |
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#include "runtime/vmThread.hpp" |
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#include "services/threadService.hpp" |
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#include "utilities/exceptions.hpp" |
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#include "utilities/preserveException.hpp" |
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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(jint version) : JvmtiEnvBase(version) { |
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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(jint version) { |
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return new JvmtiEnv(version); |
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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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if (state == NULL) { |
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return JVMTI_ERROR_THREAD_NOT_ALIVE; |
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} |
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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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VM_ENTRY_BASE(jvmtiError, JvmtiEnv::GetThreadLocalStorage , current_thread) |
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debug_only(VMNativeEntryWrapper __vew;) |
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JavaThread* java_thread = NULL; |
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ThreadsListHandle tlh(current_thread); |
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jvmtiError err = JvmtiExport::cv_external_thread_to_JavaThread(tlh.list(), thread, &java_thread, NULL); |
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if (err != JVMTI_ERROR_NONE) { |
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return err; |
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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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// Module functions |
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// |
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// module_count_ptr - pre-checked for NULL |
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// modules_ptr - pre-checked for NULL |
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jvmtiError |
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JvmtiEnv::GetAllModules(jint* module_count_ptr, jobject** modules_ptr) { |
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JvmtiModuleClosure jmc; |
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return jmc.get_all_modules(this, module_count_ptr, modules_ptr); |
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} /* end GetAllModules */ |
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// class_loader - NULL is a valid value, must be pre-checked |
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// package_name - pre-checked for NULL |
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// module_ptr - pre-checked for NULL |
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jvmtiError |
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JvmtiEnv::GetNamedModule(jobject class_loader, const char* package_name, jobject* module_ptr) { |
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JavaThread* THREAD = JavaThread::current(); // pass to macros |
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ResourceMark rm(THREAD); |
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Handle h_loader (THREAD, JNIHandles::resolve(class_loader)); |
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// Check that loader is a subclass of java.lang.ClassLoader. |
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if (h_loader.not_null() && !java_lang_ClassLoader::is_subclass(h_loader->klass())) { |
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return JVMTI_ERROR_ILLEGAL_ARGUMENT; |
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} |
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jobject module = Modules::get_named_module(h_loader, package_name, THREAD); |
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if (HAS_PENDING_EXCEPTION) { |
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CLEAR_PENDING_EXCEPTION; |
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220 |
return JVMTI_ERROR_INTERNAL; // unexpected exception |
|
221 |
} |
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*module_ptr = module; |
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return JVMTI_ERROR_NONE; |
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} /* end GetNamedModule */ |
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// module - pre-checked for NULL |
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// to_module - pre-checked for NULL |
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jvmtiError |
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JvmtiEnv::AddModuleReads(jobject module, jobject to_module) { |
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JavaThread* THREAD = JavaThread::current(); |
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// check module |
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Handle h_module(THREAD, JNIHandles::resolve(module)); |
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if (!java_lang_Module::is_instance(h_module())) { |
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return JVMTI_ERROR_INVALID_MODULE; |
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} |
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// check to_module |
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Handle h_to_module(THREAD, JNIHandles::resolve(to_module)); |
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if (!java_lang_Module::is_instance(h_to_module())) { |
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return JVMTI_ERROR_INVALID_MODULE; |
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} |
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return JvmtiExport::add_module_reads(h_module, h_to_module, THREAD); |
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} /* end AddModuleReads */ |
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// module - pre-checked for NULL |
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// pkg_name - pre-checked for NULL |
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// to_module - pre-checked for NULL |
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jvmtiError |
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JvmtiEnv::AddModuleExports(jobject module, const char* pkg_name, jobject to_module) { |
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JavaThread* THREAD = JavaThread::current(); |
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Handle h_pkg = java_lang_String::create_from_str(pkg_name, THREAD); |
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|
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// check module |
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Handle h_module(THREAD, JNIHandles::resolve(module)); |
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if (!java_lang_Module::is_instance(h_module())) { |
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return JVMTI_ERROR_INVALID_MODULE; |
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} |
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// check to_module |
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Handle h_to_module(THREAD, JNIHandles::resolve(to_module)); |
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if (!java_lang_Module::is_instance(h_to_module())) { |
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return JVMTI_ERROR_INVALID_MODULE; |
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264 |
} |
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265 |
return JvmtiExport::add_module_exports(h_module, h_pkg, h_to_module, THREAD); |
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266 |
} /* end AddModuleExports */ |
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|
267 |
|
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|
268 |
|
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// module - pre-checked for NULL |
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270 |
// pkg_name - pre-checked for NULL |
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|
271 |
// to_module - pre-checked for NULL |
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|
272 |
jvmtiError |
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273 |
JvmtiEnv::AddModuleOpens(jobject module, const char* pkg_name, jobject to_module) { |
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JavaThread* THREAD = JavaThread::current(); |
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275 |
Handle h_pkg = java_lang_String::create_from_str(pkg_name, THREAD); |
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|
276 |
|
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277 |
// check module |
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278 |
Handle h_module(THREAD, JNIHandles::resolve(module)); |
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|
279 |
if (!java_lang_Module::is_instance(h_module())) { |
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280 |
return JVMTI_ERROR_INVALID_MODULE; |
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|
281 |
} |
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|
282 |
// check to_module |
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|
283 |
Handle h_to_module(THREAD, JNIHandles::resolve(to_module)); |
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if (!java_lang_Module::is_instance(h_to_module())) { |
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|
285 |
return JVMTI_ERROR_INVALID_MODULE; |
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|
286 |
} |
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|
287 |
return JvmtiExport::add_module_opens(h_module, h_pkg, h_to_module, THREAD); |
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|
288 |
} /* end AddModuleOpens */ |
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|
289 |
|
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|
290 |
|
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291 |
// module - pre-checked for NULL |
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|
292 |
// service - pre-checked for NULL |
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|
293 |
jvmtiError |
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294 |
JvmtiEnv::AddModuleUses(jobject module, jclass service) { |
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|
295 |
JavaThread* THREAD = JavaThread::current(); |
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|
296 |
|
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|
297 |
// check module |
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|
298 |
Handle h_module(THREAD, JNIHandles::resolve(module)); |
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|
299 |
if (!java_lang_Module::is_instance(h_module())) { |
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|
300 |
return JVMTI_ERROR_INVALID_MODULE; |
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|
301 |
} |
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|
302 |
// check service |
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|
303 |
Handle h_service(THREAD, JNIHandles::resolve_external_guard(service)); |
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|
304 |
if (!java_lang_Class::is_instance(h_service()) || |
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|
305 |
java_lang_Class::is_primitive(h_service())) { |
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|
306 |
return JVMTI_ERROR_INVALID_CLASS; |
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|
307 |
} |
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|
308 |
return JvmtiExport::add_module_uses(h_module, h_service, THREAD); |
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|
309 |
} /* end AddModuleUses */ |
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|
310 |
|
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|
311 |
|
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|
312 |
// module - pre-checked for NULL |
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|
313 |
// service - pre-checked for NULL |
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|
314 |
// impl_class - pre-checked for NULL |
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|
315 |
jvmtiError |
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316 |
JvmtiEnv::AddModuleProvides(jobject module, jclass service, jclass impl_class) { |
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|
317 |
JavaThread* THREAD = JavaThread::current(); |
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|
318 |
|
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|
319 |
// check module |
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|
320 |
Handle h_module(THREAD, JNIHandles::resolve(module)); |
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|
321 |
if (!java_lang_Module::is_instance(h_module())) { |
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|
322 |
return JVMTI_ERROR_INVALID_MODULE; |
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|
323 |
} |
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|
324 |
// check service |
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|
325 |
Handle h_service(THREAD, JNIHandles::resolve_external_guard(service)); |
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|
326 |
if (!java_lang_Class::is_instance(h_service()) || |
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|
327 |
java_lang_Class::is_primitive(h_service())) { |
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|
328 |
return JVMTI_ERROR_INVALID_CLASS; |
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|
329 |
} |
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|
330 |
// check impl_class |
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|
331 |
Handle h_impl_class(THREAD, JNIHandles::resolve_external_guard(impl_class)); |
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|
332 |
if (!java_lang_Class::is_instance(h_impl_class()) || |
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|
333 |
java_lang_Class::is_primitive(h_impl_class())) { |
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|
334 |
return JVMTI_ERROR_INVALID_CLASS; |
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|
335 |
} |
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|
336 |
return JvmtiExport::add_module_provides(h_module, h_service, h_impl_class, THREAD); |
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|
337 |
} /* end AddModuleProvides */ |
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|
338 |
|
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|
339 |
// module - pre-checked for NULL |
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|
340 |
// is_modifiable_class_ptr - pre-checked for NULL |
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|
341 |
jvmtiError |
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342 |
JvmtiEnv::IsModifiableModule(jobject module, jboolean* is_modifiable_module_ptr) { |
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|
343 |
JavaThread* THREAD = JavaThread::current(); |
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|
344 |
|
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|
345 |
// check module |
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|
346 |
Handle h_module(THREAD, JNIHandles::resolve(module)); |
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|
347 |
if (!java_lang_Module::is_instance(h_module())) { |
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|
348 |
return JVMTI_ERROR_INVALID_MODULE; |
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|
349 |
} |
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|
350 |
|
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|
351 |
*is_modifiable_module_ptr = JNI_TRUE; |
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|
352 |
return JVMTI_ERROR_NONE; |
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|
353 |
} /* end IsModifiableModule */ |
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|
354 |
|
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|
355 |
|
36508 | 356 |
// |
1 | 357 |
// Class functions |
358 |
// |
|
359 |
||
360 |
// class_count_ptr - pre-checked for NULL |
|
361 |
// classes_ptr - pre-checked for NULL |
|
362 |
jvmtiError |
|
363 |
JvmtiEnv::GetLoadedClasses(jint* class_count_ptr, jclass** classes_ptr) { |
|
364 |
return JvmtiGetLoadedClasses::getLoadedClasses(this, class_count_ptr, classes_ptr); |
|
365 |
} /* end GetLoadedClasses */ |
|
366 |
||
367 |
||
368 |
// initiating_loader - NULL is a valid value, must be checked |
|
369 |
// class_count_ptr - pre-checked for NULL |
|
370 |
// classes_ptr - pre-checked for NULL |
|
371 |
jvmtiError |
|
372 |
JvmtiEnv::GetClassLoaderClasses(jobject initiating_loader, jint* class_count_ptr, jclass** classes_ptr) { |
|
373 |
return JvmtiGetLoadedClasses::getClassLoaderClasses(this, initiating_loader, |
|
374 |
class_count_ptr, classes_ptr); |
|
375 |
} /* end GetClassLoaderClasses */ |
|
376 |
||
377 |
// k_mirror - may be primitive, this must be checked |
|
378 |
// is_modifiable_class_ptr - pre-checked for NULL |
|
379 |
jvmtiError |
|
380 |
JvmtiEnv::IsModifiableClass(oop k_mirror, jboolean* is_modifiable_class_ptr) { |
|
381 |
*is_modifiable_class_ptr = VM_RedefineClasses::is_modifiable_class(k_mirror)? |
|
382 |
JNI_TRUE : JNI_FALSE; |
|
383 |
return JVMTI_ERROR_NONE; |
|
384 |
} /* end IsModifiableClass */ |
|
385 |
||
386 |
// class_count - pre-checked to be greater than or equal to 0 |
|
387 |
// classes - pre-checked for NULL |
|
388 |
jvmtiError |
|
389 |
JvmtiEnv::RetransformClasses(jint class_count, const jclass* classes) { |
|
390 |
//TODO: add locking |
|
391 |
||
392 |
int index; |
|
393 |
JavaThread* current_thread = JavaThread::current(); |
|
394 |
ResourceMark rm(current_thread); |
|
395 |
||
396 |
jvmtiClassDefinition* class_definitions = |
|
397 |
NEW_RESOURCE_ARRAY(jvmtiClassDefinition, class_count); |
|
398 |
NULL_CHECK(class_definitions, JVMTI_ERROR_OUT_OF_MEMORY); |
|
399 |
||
400 |
for (index = 0; index < class_count; index++) { |
|
401 |
HandleMark hm(current_thread); |
|
402 |
||
403 |
jclass jcls = classes[index]; |
|
404 |
oop k_mirror = JNIHandles::resolve_external_guard(jcls); |
|
405 |
if (k_mirror == NULL) { |
|
406 |
return JVMTI_ERROR_INVALID_CLASS; |
|
407 |
} |
|
4571 | 408 |
if (!k_mirror->is_a(SystemDictionary::Class_klass())) { |
1 | 409 |
return JVMTI_ERROR_INVALID_CLASS; |
410 |
} |
|
411 |
||
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|
412 |
if (!VM_RedefineClasses::is_modifiable_class(k_mirror)) { |
1 | 413 |
return JVMTI_ERROR_UNMODIFIABLE_CLASS; |
414 |
} |
|
415 |
||
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|
416 |
Klass* klass = java_lang_Class::as_Klass(k_mirror); |
1 | 417 |
|
418 |
jint status = klass->jvmti_class_status(); |
|
419 |
if (status & (JVMTI_CLASS_STATUS_ERROR)) { |
|
420 |
return JVMTI_ERROR_INVALID_CLASS; |
|
421 |
} |
|
422 |
||
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|
423 |
InstanceKlass* ik = InstanceKlass::cast(klass); |
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|
424 |
if (ik->get_cached_class_file_bytes() == NULL) { |
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|
425 |
// Not cached, we need to reconstitute the class file from the |
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|
426 |
// VM representation. We don't attach the reconstituted class |
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|
427 |
// bytes to the InstanceKlass here because they have not been |
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|
428 |
// validated and we're not at a safepoint. |
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|
429 |
JvmtiClassFileReconstituter reconstituter(ik); |
1 | 430 |
if (reconstituter.get_error() != JVMTI_ERROR_NONE) { |
431 |
return reconstituter.get_error(); |
|
432 |
} |
|
433 |
||
434 |
class_definitions[index].class_byte_count = (jint)reconstituter.class_file_size(); |
|
435 |
class_definitions[index].class_bytes = (unsigned char*) |
|
436 |
reconstituter.class_file_bytes(); |
|
437 |
} else { |
|
438 |
// it is cached, get it from the cache |
|
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|
439 |
class_definitions[index].class_byte_count = ik->get_cached_class_file_len(); |
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|
440 |
class_definitions[index].class_bytes = ik->get_cached_class_file_bytes(); |
1 | 441 |
} |
442 |
class_definitions[index].klass = jcls; |
|
443 |
} |
|
444 |
VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_retransform); |
|
445 |
VMThread::execute(&op); |
|
446 |
return (op.check_error()); |
|
447 |
} /* end RetransformClasses */ |
|
448 |
||
449 |
||
450 |
// class_count - pre-checked to be greater than or equal to 0 |
|
451 |
// class_definitions - pre-checked for NULL |
|
452 |
jvmtiError |
|
453 |
JvmtiEnv::RedefineClasses(jint class_count, const jvmtiClassDefinition* class_definitions) { |
|
454 |
//TODO: add locking |
|
455 |
VM_RedefineClasses op(class_count, class_definitions, jvmti_class_load_kind_redefine); |
|
456 |
VMThread::execute(&op); |
|
457 |
return (op.check_error()); |
|
458 |
} /* end RedefineClasses */ |
|
459 |
||
460 |
||
461 |
// |
|
462 |
// Object functions |
|
463 |
// |
|
464 |
||
465 |
// size_ptr - pre-checked for NULL |
|
466 |
jvmtiError |
|
467 |
JvmtiEnv::GetObjectSize(jobject object, jlong* size_ptr) { |
|
468 |
oop mirror = JNIHandles::resolve_external_guard(object); |
|
469 |
NULL_CHECK(mirror, JVMTI_ERROR_INVALID_OBJECT); |
|
39207
5c6e88667985
8075030: JvmtiEnv::GetObjectSize reports incorrect java.lang.Class instance size
shade
parents:
38151
diff
changeset
|
470 |
*size_ptr = (jlong)mirror->size() * wordSize; |
1 | 471 |
return JVMTI_ERROR_NONE; |
472 |
} /* end GetObjectSize */ |
|
473 |
||
474 |
// |
|
475 |
// Method functions |
|
476 |
// |
|
477 |
||
478 |
// prefix - NULL is a valid value, must be checked |
|
479 |
jvmtiError |
|
480 |
JvmtiEnv::SetNativeMethodPrefix(const char* prefix) { |
|
481 |
return prefix == NULL? |
|
482 |
SetNativeMethodPrefixes(0, NULL) : |
|
483 |
SetNativeMethodPrefixes(1, (char**)&prefix); |
|
484 |
} /* end SetNativeMethodPrefix */ |
|
485 |
||
486 |
||
487 |
// prefix_count - pre-checked to be greater than or equal to 0 |
|
488 |
// prefixes - pre-checked for NULL |
|
489 |
jvmtiError |
|
490 |
JvmtiEnv::SetNativeMethodPrefixes(jint prefix_count, char** prefixes) { |
|
491 |
// Have to grab JVMTI thread state lock to be sure that some thread |
|
492 |
// isn't accessing the prefixes at the same time we are setting them. |
|
493 |
// No locks during VM bring-up. |
|
494 |
if (Threads::number_of_threads() == 0) { |
|
495 |
return set_native_method_prefixes(prefix_count, prefixes); |
|
496 |
} else { |
|
497 |
MutexLocker mu(JvmtiThreadState_lock); |
|
498 |
return set_native_method_prefixes(prefix_count, prefixes); |
|
499 |
} |
|
500 |
} /* end SetNativeMethodPrefixes */ |
|
501 |
||
502 |
// |
|
503 |
// Event Management functions |
|
504 |
// |
|
505 |
||
506 |
// callbacks - NULL is a valid value, must be checked |
|
507 |
// size_of_callbacks - pre-checked to be greater than or equal to 0 |
|
508 |
jvmtiError |
|
509 |
JvmtiEnv::SetEventCallbacks(const jvmtiEventCallbacks* callbacks, jint size_of_callbacks) { |
|
510 |
JvmtiEventController::set_event_callbacks(this, callbacks, size_of_callbacks); |
|
511 |
return JVMTI_ERROR_NONE; |
|
512 |
} /* end SetEventCallbacks */ |
|
513 |
||
514 |
||
515 |
// event_thread - NULL is a valid value, must be checked |
|
516 |
jvmtiError |
|
517 |
JvmtiEnv::SetEventNotificationMode(jvmtiEventMode mode, jvmtiEvent event_type, jthread event_thread, ...) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
518 |
if (event_thread == NULL) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
519 |
// Can be called at Agent_OnLoad() time with event_thread == NULL |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
520 |
// when Thread::current() does not work yet so we cannot create a |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
521 |
// ThreadsListHandle that is common to both thread-specific and |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
522 |
// global code paths. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
523 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
524 |
// event_type must be valid |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
525 |
if (!JvmtiEventController::is_valid_event_type(event_type)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
526 |
return JVMTI_ERROR_INVALID_EVENT_TYPE; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
527 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
528 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
529 |
bool enabled = (mode == JVMTI_ENABLE); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
530 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
531 |
// assure that needed capabilities are present |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
532 |
if (enabled && !JvmtiUtil::has_event_capability(event_type, get_capabilities())) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
533 |
return JVMTI_ERROR_MUST_POSSESS_CAPABILITY; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
534 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
535 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
536 |
if (event_type == JVMTI_EVENT_CLASS_FILE_LOAD_HOOK && enabled) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
537 |
record_class_file_load_hook_enabled(); |
1 | 538 |
} |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
539 |
JvmtiEventController::set_user_enabled(this, (JavaThread*) NULL, event_type, enabled); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
540 |
} else { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
541 |
// We have a specified event_thread. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
542 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
543 |
JavaThread* java_thread = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
544 |
ThreadsListHandle tlh; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
545 |
jvmtiError err = JvmtiExport::cv_external_thread_to_JavaThread(tlh.list(), event_thread, &java_thread, NULL); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
546 |
if (err != JVMTI_ERROR_NONE) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
547 |
return err; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
548 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
549 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
550 |
// event_type must be valid |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
551 |
if (!JvmtiEventController::is_valid_event_type(event_type)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
552 |
return JVMTI_ERROR_INVALID_EVENT_TYPE; |
1 | 553 |
} |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
554 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
555 |
// global events cannot be controlled at thread level. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
556 |
if (JvmtiEventController::is_global_event(event_type)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
557 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT; |
1 | 558 |
} |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
559 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
560 |
bool enabled = (mode == JVMTI_ENABLE); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
561 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
562 |
// assure that needed capabilities are present |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
563 |
if (enabled && !JvmtiUtil::has_event_capability(event_type, get_capabilities())) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
564 |
return JVMTI_ERROR_MUST_POSSESS_CAPABILITY; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
565 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
566 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
567 |
if (event_type == JVMTI_EVENT_CLASS_FILE_LOAD_HOOK && enabled) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
568 |
record_class_file_load_hook_enabled(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
569 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
570 |
JvmtiEventController::set_user_enabled(this, java_thread, event_type, enabled); |
1 | 571 |
} |
572 |
||
573 |
return JVMTI_ERROR_NONE; |
|
574 |
} /* end SetEventNotificationMode */ |
|
575 |
||
576 |
// |
|
577 |
// Capability functions |
|
578 |
// |
|
579 |
||
580 |
// capabilities_ptr - pre-checked for NULL |
|
581 |
jvmtiError |
|
582 |
JvmtiEnv::GetPotentialCapabilities(jvmtiCapabilities* capabilities_ptr) { |
|
583 |
JvmtiManageCapabilities::get_potential_capabilities(get_capabilities(), |
|
584 |
get_prohibited_capabilities(), |
|
585 |
capabilities_ptr); |
|
586 |
return JVMTI_ERROR_NONE; |
|
587 |
} /* end GetPotentialCapabilities */ |
|
588 |
||
589 |
||
590 |
// capabilities_ptr - pre-checked for NULL |
|
591 |
jvmtiError |
|
592 |
JvmtiEnv::AddCapabilities(const jvmtiCapabilities* capabilities_ptr) { |
|
593 |
return JvmtiManageCapabilities::add_capabilities(get_capabilities(), |
|
594 |
get_prohibited_capabilities(), |
|
595 |
capabilities_ptr, |
|
596 |
get_capabilities()); |
|
597 |
} /* end AddCapabilities */ |
|
598 |
||
599 |
||
600 |
// capabilities_ptr - pre-checked for NULL |
|
601 |
jvmtiError |
|
602 |
JvmtiEnv::RelinquishCapabilities(const jvmtiCapabilities* capabilities_ptr) { |
|
603 |
JvmtiManageCapabilities::relinquish_capabilities(get_capabilities(), capabilities_ptr, get_capabilities()); |
|
604 |
return JVMTI_ERROR_NONE; |
|
605 |
} /* end RelinquishCapabilities */ |
|
606 |
||
607 |
||
608 |
// capabilities_ptr - pre-checked for NULL |
|
609 |
jvmtiError |
|
610 |
JvmtiEnv::GetCapabilities(jvmtiCapabilities* capabilities_ptr) { |
|
611 |
JvmtiManageCapabilities::copy_capabilities(get_capabilities(), capabilities_ptr); |
|
612 |
return JVMTI_ERROR_NONE; |
|
613 |
} /* end GetCapabilities */ |
|
614 |
||
615 |
// |
|
616 |
// Class Loader Search functions |
|
617 |
// |
|
618 |
||
619 |
// segment - pre-checked for NULL |
|
620 |
jvmtiError |
|
621 |
JvmtiEnv::AddToBootstrapClassLoaderSearch(const char* segment) { |
|
622 |
jvmtiPhase phase = get_phase(); |
|
623 |
if (phase == JVMTI_PHASE_ONLOAD) { |
|
624 |
Arguments::append_sysclasspath(segment); |
|
625 |
return JVMTI_ERROR_NONE; |
|
4491 | 626 |
} else if (use_version_1_0_semantics()) { |
627 |
// This JvmtiEnv requested version 1.0 semantics and this function |
|
628 |
// is only allowed in the ONLOAD phase in version 1.0 so we need to |
|
629 |
// return an error here. |
|
630 |
return JVMTI_ERROR_WRONG_PHASE; |
|
4490
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
631 |
} else if (phase == JVMTI_PHASE_LIVE) { |
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
632 |
// The phase is checked by the wrapper that called this function, |
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
633 |
// but this thread could be racing with the thread that is |
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
634 |
// terminating the VM so we check one more time. |
1 | 635 |
|
636 |
// create the zip entry |
|
37220
ec74292c0c9c
8075253: Multiversion JAR feature: CDS does not support MV-JARs
ccheung
parents:
37179
diff
changeset
|
637 |
ClassPathZipEntry* zip_entry = ClassLoader::create_class_path_zip_entry(segment, true); |
1 | 638 |
if (zip_entry == NULL) { |
639 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT; |
|
640 |
} |
|
641 |
||
642 |
// lock the loader |
|
643 |
Thread* thread = Thread::current(); |
|
644 |
HandleMark hm; |
|
645 |
Handle loader_lock = Handle(thread, SystemDictionary::system_loader_lock()); |
|
646 |
||
647 |
ObjectLocker ol(loader_lock, thread); |
|
648 |
||
649 |
// add the jar file to the bootclasspath |
|
38151
fffedc5e5cf8
8154110: Update class* and safepoint* logging subsystems
mockner
parents:
37993
diff
changeset
|
650 |
log_info(class, load)("opened: %s", zip_entry->name()); |
27672
d24adedd3655
8064701: Some CDS optimizations should be disabled if bootclasspath is modified by JVMTI
iklam
parents:
27654
diff
changeset
|
651 |
ClassLoaderExt::append_boot_classpath(zip_entry); |
1 | 652 |
return JVMTI_ERROR_NONE; |
4490
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
653 |
} else { |
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
654 |
return JVMTI_ERROR_WRONG_PHASE; |
1 | 655 |
} |
656 |
||
657 |
} /* end AddToBootstrapClassLoaderSearch */ |
|
658 |
||
659 |
||
660 |
// segment - pre-checked for NULL |
|
661 |
jvmtiError |
|
662 |
JvmtiEnv::AddToSystemClassLoaderSearch(const char* segment) { |
|
663 |
jvmtiPhase phase = get_phase(); |
|
664 |
||
665 |
if (phase == JVMTI_PHASE_ONLOAD) { |
|
666 |
for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { |
|
667 |
if (strcmp("java.class.path", p->key()) == 0) { |
|
668 |
p->append_value(segment); |
|
669 |
break; |
|
670 |
} |
|
671 |
} |
|
672 |
return JVMTI_ERROR_NONE; |
|
4490
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
673 |
} else if (phase == JVMTI_PHASE_LIVE) { |
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
674 |
// The phase is checked by the wrapper that called this function, |
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
675 |
// but this thread could be racing with the thread that is |
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
676 |
// terminating the VM so we check one more time. |
1 | 677 |
HandleMark hm; |
678 |
||
679 |
// create the zip entry (which will open the zip file and hence |
|
680 |
// check that the segment is indeed a zip file). |
|
37220
ec74292c0c9c
8075253: Multiversion JAR feature: CDS does not support MV-JARs
ccheung
parents:
37179
diff
changeset
|
681 |
ClassPathZipEntry* zip_entry = ClassLoader::create_class_path_zip_entry(segment, false); |
1 | 682 |
if (zip_entry == NULL) { |
683 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT; |
|
684 |
} |
|
685 |
delete zip_entry; // no longer needed |
|
686 |
||
687 |
// lock the loader |
|
688 |
Thread* THREAD = Thread::current(); |
|
689 |
Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); |
|
690 |
||
691 |
ObjectLocker ol(loader, THREAD); |
|
692 |
||
693 |
// need the path as java.lang.String |
|
9173
b3df204cd281
7007254: NullPointerException occurs with jvisualvm placed under a dir. including Japanese chars
thurka
parents:
8076
diff
changeset
|
694 |
Handle path = java_lang_String::create_from_platform_dependent_str(segment, THREAD); |
1 | 695 |
if (HAS_PENDING_EXCEPTION) { |
696 |
CLEAR_PENDING_EXCEPTION; |
|
697 |
return JVMTI_ERROR_INTERNAL; |
|
698 |
} |
|
699 |
||
700 |
// Invoke the appendToClassPathForInstrumentation method - if the method |
|
701 |
// is not found it means the loader doesn't support adding to the class path |
|
702 |
// in the live phase. |
|
703 |
{ |
|
704 |
JavaValue res(T_VOID); |
|
705 |
JavaCalls::call_special(&res, |
|
706 |
loader, |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
707 |
loader->klass(), |
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7724
diff
changeset
|
708 |
vmSymbols::appendToClassPathForInstrumentation_name(), |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7724
diff
changeset
|
709 |
vmSymbols::appendToClassPathForInstrumentation_signature(), |
1 | 710 |
path, |
711 |
THREAD); |
|
712 |
if (HAS_PENDING_EXCEPTION) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
713 |
Symbol* ex_name = PENDING_EXCEPTION->klass()->name(); |
1 | 714 |
CLEAR_PENDING_EXCEPTION; |
715 |
||
716 |
if (ex_name == vmSymbols::java_lang_NoSuchMethodError()) { |
|
717 |
return JVMTI_ERROR_CLASS_LOADER_UNSUPPORTED; |
|
718 |
} else { |
|
719 |
return JVMTI_ERROR_INTERNAL; |
|
720 |
} |
|
721 |
} |
|
722 |
} |
|
723 |
||
724 |
return JVMTI_ERROR_NONE; |
|
4490
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
725 |
} else { |
0de5bbb57c99
6648438: 4/4 src/share/vm/prims/jvmtiEnv.cpp:457 assert(phase == JVMTI_PHASE_LIVE,"sanity check")
dcubed
parents:
1
diff
changeset
|
726 |
return JVMTI_ERROR_WRONG_PHASE; |
1 | 727 |
} |
728 |
} /* end AddToSystemClassLoaderSearch */ |
|
729 |
||
730 |
// |
|
731 |
// General functions |
|
732 |
// |
|
733 |
||
734 |
// phase_ptr - pre-checked for NULL |
|
735 |
jvmtiError |
|
736 |
JvmtiEnv::GetPhase(jvmtiPhase* phase_ptr) { |
|
36508 | 737 |
*phase_ptr = phase(); |
1 | 738 |
return JVMTI_ERROR_NONE; |
739 |
} /* end GetPhase */ |
|
740 |
||
741 |
||
742 |
jvmtiError |
|
743 |
JvmtiEnv::DisposeEnvironment() { |
|
744 |
dispose(); |
|
745 |
return JVMTI_ERROR_NONE; |
|
746 |
} /* end DisposeEnvironment */ |
|
747 |
||
748 |
||
749 |
// data - NULL is a valid value, must be checked |
|
750 |
jvmtiError |
|
751 |
JvmtiEnv::SetEnvironmentLocalStorage(const void* data) { |
|
752 |
set_env_local_storage(data); |
|
753 |
return JVMTI_ERROR_NONE; |
|
754 |
} /* end SetEnvironmentLocalStorage */ |
|
755 |
||
756 |
||
757 |
// data_ptr - pre-checked for NULL |
|
758 |
jvmtiError |
|
759 |
JvmtiEnv::GetEnvironmentLocalStorage(void** data_ptr) { |
|
760 |
*data_ptr = (void*)get_env_local_storage(); |
|
761 |
return JVMTI_ERROR_NONE; |
|
762 |
} /* end GetEnvironmentLocalStorage */ |
|
763 |
||
764 |
// version_ptr - pre-checked for NULL |
|
765 |
jvmtiError |
|
766 |
JvmtiEnv::GetVersionNumber(jint* version_ptr) { |
|
767 |
*version_ptr = JVMTI_VERSION; |
|
768 |
return JVMTI_ERROR_NONE; |
|
769 |
} /* end GetVersionNumber */ |
|
770 |
||
771 |
||
772 |
// name_ptr - pre-checked for NULL |
|
773 |
jvmtiError |
|
774 |
JvmtiEnv::GetErrorName(jvmtiError error, char** name_ptr) { |
|
775 |
if (error < JVMTI_ERROR_NONE || error > JVMTI_ERROR_MAX) { |
|
776 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT; |
|
777 |
} |
|
778 |
const char *name = JvmtiUtil::error_name(error); |
|
779 |
if (name == NULL) { |
|
780 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT; |
|
781 |
} |
|
782 |
size_t len = strlen(name) + 1; |
|
783 |
jvmtiError err = allocate(len, (unsigned char**)name_ptr); |
|
784 |
if (err == JVMTI_ERROR_NONE) { |
|
785 |
memcpy(*name_ptr, name, len); |
|
786 |
} |
|
787 |
return err; |
|
788 |
} /* end GetErrorName */ |
|
789 |
||
790 |
||
791 |
jvmtiError |
|
792 |
JvmtiEnv::SetVerboseFlag(jvmtiVerboseFlag flag, jboolean value) { |
|
40924 | 793 |
LogLevelType level = value == 0 ? LogLevel::Off : LogLevel::Info; |
1 | 794 |
switch (flag) { |
795 |
case JVMTI_VERBOSE_OTHER: |
|
796 |
// ignore |
|
797 |
break; |
|
798 |
case JVMTI_VERBOSE_CLASS: |
|
40924 | 799 |
LogConfiguration::configure_stdout(level, false, LOG_TAGS(class, unload)); |
800 |
LogConfiguration::configure_stdout(level, false, LOG_TAGS(class, load)); |
|
1 | 801 |
break; |
802 |
case JVMTI_VERBOSE_GC: |
|
35228
e7bbfb90fd31
8145083: Use semaphore instead of mutex for synchronization of Unified Logging configuration
mlarsson
parents:
35061
diff
changeset
|
803 |
if (value == 0) { |
35520
0efb779f41a5
8147464: Use LogConfiguration::configure_stdout() instead of parse_log_arguments
brutisso
parents:
35228
diff
changeset
|
804 |
LogConfiguration::configure_stdout(LogLevel::Off, true, LOG_TAGS(gc)); |
35228
e7bbfb90fd31
8145083: Use semaphore instead of mutex for synchronization of Unified Logging configuration
mlarsson
parents:
35061
diff
changeset
|
805 |
} else { |
35520
0efb779f41a5
8147464: Use LogConfiguration::configure_stdout() instead of parse_log_arguments
brutisso
parents:
35228
diff
changeset
|
806 |
LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(gc)); |
35061 | 807 |
} |
1 | 808 |
break; |
809 |
case JVMTI_VERBOSE_JNI: |
|
810 |
PrintJNIResolving = value != 0; |
|
811 |
break; |
|
812 |
default: |
|
813 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT; |
|
814 |
}; |
|
815 |
return JVMTI_ERROR_NONE; |
|
816 |
} /* end SetVerboseFlag */ |
|
817 |
||
818 |
||
819 |
// format_ptr - pre-checked for NULL |
|
820 |
jvmtiError |
|
821 |
JvmtiEnv::GetJLocationFormat(jvmtiJlocationFormat* format_ptr) { |
|
822 |
*format_ptr = JVMTI_JLOCATION_JVMBCI; |
|
823 |
return JVMTI_ERROR_NONE; |
|
824 |
} /* end GetJLocationFormat */ |
|
825 |
||
826 |
// |
|
827 |
// Thread functions |
|
828 |
// |
|
829 |
||
830 |
// Threads_lock NOT held |
|
831 |
// thread - NOT pre-checked |
|
832 |
// thread_state_ptr - pre-checked for NULL |
|
833 |
jvmtiError |
|
834 |
JvmtiEnv::GetThreadState(jthread thread, jint* thread_state_ptr) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
835 |
JavaThread* current_thread = JavaThread::current(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
836 |
JavaThread* java_thread = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
837 |
oop thread_oop = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
838 |
ThreadsListHandle tlh(current_thread); |
1 | 839 |
|
840 |
if (thread == NULL) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
841 |
java_thread = current_thread; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
842 |
thread_oop = java_thread->threadObj(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
843 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
844 |
if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::Thread_klass())) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
845 |
return JVMTI_ERROR_INVALID_THREAD; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
846 |
} |
1 | 847 |
} else { |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
848 |
jvmtiError err = JvmtiExport::cv_external_thread_to_JavaThread(tlh.list(), thread, &java_thread, &thread_oop); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
849 |
if (err != JVMTI_ERROR_NONE) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
850 |
// We got an error code so we don't have a JavaThread *, but |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
851 |
// only return an error from here if we didn't get a valid |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
852 |
// thread_oop. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
853 |
if (thread_oop == NULL) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
854 |
return err; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
855 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
856 |
// We have a valid thread_oop so we can return some thread state. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
857 |
} |
1 | 858 |
} |
859 |
||
860 |
// get most state bits |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
861 |
jint state = (jint)java_lang_Thread::get_thread_status(thread_oop); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
862 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
863 |
if (java_thread != NULL) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
864 |
// We have a JavaThread* so add more state bits. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
865 |
JavaThreadState jts = java_thread->thread_state(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
866 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
867 |
if (java_thread->is_being_ext_suspended()) { |
1 | 868 |
state |= JVMTI_THREAD_STATE_SUSPENDED; |
869 |
} |
|
870 |
if (jts == _thread_in_native) { |
|
871 |
state |= JVMTI_THREAD_STATE_IN_NATIVE; |
|
872 |
} |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
873 |
OSThread* osThread = java_thread->osthread(); |
1 | 874 |
if (osThread != NULL && osThread->interrupted()) { |
875 |
state |= JVMTI_THREAD_STATE_INTERRUPTED; |
|
876 |
} |
|
877 |
} |
|
878 |
||
879 |
*thread_state_ptr = state; |
|
880 |
return JVMTI_ERROR_NONE; |
|
881 |
} /* end GetThreadState */ |
|
882 |
||
883 |
||
884 |
// thread_ptr - pre-checked for NULL |
|
885 |
jvmtiError |
|
886 |
JvmtiEnv::GetCurrentThread(jthread* thread_ptr) { |
|
887 |
JavaThread* current_thread = JavaThread::current(); |
|
888 |
*thread_ptr = (jthread)JNIHandles::make_local(current_thread, current_thread->threadObj()); |
|
889 |
return JVMTI_ERROR_NONE; |
|
890 |
} /* end GetCurrentThread */ |
|
891 |
||
892 |
||
893 |
// threads_count_ptr - pre-checked for NULL |
|
894 |
// threads_ptr - pre-checked for NULL |
|
895 |
jvmtiError |
|
896 |
JvmtiEnv::GetAllThreads(jint* threads_count_ptr, jthread** threads_ptr) { |
|
897 |
int nthreads = 0; |
|
898 |
Handle *thread_objs = NULL; |
|
899 |
ResourceMark rm; |
|
900 |
HandleMark hm; |
|
901 |
||
902 |
// enumerate threads (including agent threads) |
|
903 |
ThreadsListEnumerator tle(Thread::current(), true); |
|
904 |
nthreads = tle.num_threads(); |
|
905 |
*threads_count_ptr = nthreads; |
|
906 |
||
907 |
if (nthreads == 0) { |
|
908 |
*threads_ptr = NULL; |
|
909 |
return JVMTI_ERROR_NONE; |
|
910 |
} |
|
911 |
||
912 |
thread_objs = NEW_RESOURCE_ARRAY(Handle, nthreads); |
|
913 |
NULL_CHECK(thread_objs, JVMTI_ERROR_OUT_OF_MEMORY); |
|
914 |
||
915 |
for (int i=0; i < nthreads; i++) { |
|
916 |
thread_objs[i] = Handle(tle.get_threadObj(i)); |
|
917 |
} |
|
918 |
||
919 |
jthread *jthreads = new_jthreadArray(nthreads, thread_objs); |
|
920 |
NULL_CHECK(jthreads, JVMTI_ERROR_OUT_OF_MEMORY); |
|
921 |
||
922 |
*threads_ptr = jthreads; |
|
923 |
return JVMTI_ERROR_NONE; |
|
924 |
} /* end GetAllThreads */ |
|
925 |
||
926 |
||
927 |
// Threads_lock NOT held, java_thread not protected by lock |
|
928 |
// java_thread - pre-checked |
|
929 |
jvmtiError |
|
930 |
JvmtiEnv::SuspendThread(JavaThread* java_thread) { |
|
931 |
// don't allow hidden thread suspend request. |
|
932 |
if (java_thread->is_hidden_from_external_view()) { |
|
933 |
return (JVMTI_ERROR_NONE); |
|
934 |
} |
|
935 |
||
936 |
{ |
|
937 |
MutexLockerEx ml(java_thread->SR_lock(), Mutex::_no_safepoint_check_flag); |
|
938 |
if (java_thread->is_external_suspend()) { |
|
939 |
// don't allow nested external suspend requests. |
|
940 |
return (JVMTI_ERROR_THREAD_SUSPENDED); |
|
941 |
} |
|
942 |
if (java_thread->is_exiting()) { // thread is in the process of exiting |
|
943 |
return (JVMTI_ERROR_THREAD_NOT_ALIVE); |
|
944 |
} |
|
945 |
java_thread->set_external_suspend(); |
|
946 |
} |
|
947 |
||
948 |
if (!JvmtiSuspendControl::suspend(java_thread)) { |
|
949 |
// the thread was in the process of exiting |
|
950 |
return (JVMTI_ERROR_THREAD_NOT_ALIVE); |
|
951 |
} |
|
952 |
return JVMTI_ERROR_NONE; |
|
953 |
} /* end SuspendThread */ |
|
954 |
||
955 |
||
956 |
// request_count - pre-checked to be greater than or equal to 0 |
|
957 |
// request_list - pre-checked for NULL |
|
958 |
// results - pre-checked for NULL |
|
959 |
jvmtiError |
|
960 |
JvmtiEnv::SuspendThreadList(jint request_count, const jthread* request_list, jvmtiError* results) { |
|
961 |
int needSafepoint = 0; // > 0 if we need a safepoint |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
962 |
ThreadsListHandle tlh; |
1 | 963 |
for (int i = 0; i < request_count; i++) { |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
964 |
JavaThread *java_thread = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
965 |
jvmtiError err = JvmtiExport::cv_external_thread_to_JavaThread(tlh.list(), request_list[i], &java_thread, NULL); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
966 |
if (err != JVMTI_ERROR_NONE) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
967 |
results[i] = err; |
1 | 968 |
continue; |
969 |
} |
|
970 |
// don't allow hidden thread suspend request. |
|
971 |
if (java_thread->is_hidden_from_external_view()) { |
|
972 |
results[i] = JVMTI_ERROR_NONE; // indicate successful suspend |
|
973 |
continue; |
|
974 |
} |
|
975 |
||
976 |
{ |
|
977 |
MutexLockerEx ml(java_thread->SR_lock(), Mutex::_no_safepoint_check_flag); |
|
978 |
if (java_thread->is_external_suspend()) { |
|
979 |
// don't allow nested external suspend requests. |
|
980 |
results[i] = JVMTI_ERROR_THREAD_SUSPENDED; |
|
981 |
continue; |
|
982 |
} |
|
983 |
if (java_thread->is_exiting()) { // thread is in the process of exiting |
|
984 |
results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE; |
|
985 |
continue; |
|
986 |
} |
|
987 |
java_thread->set_external_suspend(); |
|
988 |
} |
|
989 |
if (java_thread->thread_state() == _thread_in_native) { |
|
990 |
// We need to try and suspend native threads here. Threads in |
|
991 |
// other states will self-suspend on their next transition. |
|
992 |
if (!JvmtiSuspendControl::suspend(java_thread)) { |
|
993 |
// The thread was in the process of exiting. Force another |
|
994 |
// safepoint to make sure that this thread transitions. |
|
995 |
needSafepoint++; |
|
996 |
results[i] = JVMTI_ERROR_THREAD_NOT_ALIVE; |
|
997 |
continue; |
|
998 |
} |
|
999 |
} else { |
|
1000 |
needSafepoint++; |
|
1001 |
} |
|
1002 |
results[i] = JVMTI_ERROR_NONE; // indicate successful suspend |
|
1003 |
} |
|
1004 |
if (needSafepoint > 0) { |
|
46495
34f7d403039f
8152953: ForceSafepoint operations should be more specific
rehn
parents:
46388
diff
changeset
|
1005 |
VM_ThreadsSuspendJVMTI tsj; |
34f7d403039f
8152953: ForceSafepoint operations should be more specific
rehn
parents:
46388
diff
changeset
|
1006 |
VMThread::execute(&tsj); |
1 | 1007 |
} |
1008 |
// per-thread suspend results returned via results parameter |
|
1009 |
return JVMTI_ERROR_NONE; |
|
1010 |
} /* end SuspendThreadList */ |
|
1011 |
||
1012 |
||
1013 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1014 |
// java_thread - pre-checked |
|
1015 |
jvmtiError |
|
1016 |
JvmtiEnv::ResumeThread(JavaThread* java_thread) { |
|
1017 |
// don't allow hidden thread resume request. |
|
1018 |
if (java_thread->is_hidden_from_external_view()) { |
|
1019 |
return JVMTI_ERROR_NONE; |
|
1020 |
} |
|
1021 |
||
1022 |
if (!java_thread->is_being_ext_suspended()) { |
|
1023 |
return JVMTI_ERROR_THREAD_NOT_SUSPENDED; |
|
1024 |
} |
|
1025 |
||
1026 |
if (!JvmtiSuspendControl::resume(java_thread)) { |
|
1027 |
return JVMTI_ERROR_INTERNAL; |
|
1028 |
} |
|
1029 |
return JVMTI_ERROR_NONE; |
|
1030 |
} /* end ResumeThread */ |
|
1031 |
||
1032 |
||
1033 |
// request_count - pre-checked to be greater than or equal to 0 |
|
1034 |
// request_list - pre-checked for NULL |
|
1035 |
// results - pre-checked for NULL |
|
1036 |
jvmtiError |
|
1037 |
JvmtiEnv::ResumeThreadList(jint request_count, const jthread* request_list, jvmtiError* results) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1038 |
ThreadsListHandle tlh; |
1 | 1039 |
for (int i = 0; i < request_count; i++) { |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1040 |
JavaThread* java_thread = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1041 |
jvmtiError err = JvmtiExport::cv_external_thread_to_JavaThread(tlh.list(), request_list[i], &java_thread, NULL); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1042 |
if (err != JVMTI_ERROR_NONE) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1043 |
results[i] = err; |
1 | 1044 |
continue; |
1045 |
} |
|
1046 |
// don't allow hidden thread resume request. |
|
1047 |
if (java_thread->is_hidden_from_external_view()) { |
|
1048 |
results[i] = JVMTI_ERROR_NONE; // indicate successful resume |
|
1049 |
continue; |
|
1050 |
} |
|
1051 |
if (!java_thread->is_being_ext_suspended()) { |
|
1052 |
results[i] = JVMTI_ERROR_THREAD_NOT_SUSPENDED; |
|
1053 |
continue; |
|
1054 |
} |
|
1055 |
||
1056 |
if (!JvmtiSuspendControl::resume(java_thread)) { |
|
1057 |
results[i] = JVMTI_ERROR_INTERNAL; |
|
1058 |
continue; |
|
1059 |
} |
|
1060 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1061 |
results[i] = JVMTI_ERROR_NONE; // indicate successful resume |
1 | 1062 |
} |
1063 |
// per-thread resume results returned via results parameter |
|
1064 |
return JVMTI_ERROR_NONE; |
|
1065 |
} /* end ResumeThreadList */ |
|
1066 |
||
1067 |
||
1068 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1069 |
// java_thread - pre-checked |
|
1070 |
jvmtiError |
|
1071 |
JvmtiEnv::StopThread(JavaThread* java_thread, jobject exception) { |
|
1072 |
oop e = JNIHandles::resolve_external_guard(exception); |
|
1073 |
NULL_CHECK(e, JVMTI_ERROR_NULL_POINTER); |
|
1074 |
||
1075 |
JavaThread::send_async_exception(java_thread->threadObj(), e); |
|
1076 |
||
1077 |
return JVMTI_ERROR_NONE; |
|
1078 |
||
1079 |
} /* end StopThread */ |
|
1080 |
||
1081 |
||
1082 |
// Threads_lock NOT held |
|
1083 |
// thread - NOT pre-checked |
|
1084 |
jvmtiError |
|
1085 |
JvmtiEnv::InterruptThread(jthread thread) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1086 |
// TODO: this is very similar to JVM_Interrupt(); share code in future |
1 | 1087 |
JavaThread* current_thread = JavaThread::current(); |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1088 |
JavaThread* java_thread = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1089 |
ThreadsListHandle tlh(current_thread); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1090 |
jvmtiError err = JvmtiExport::cv_external_thread_to_JavaThread(tlh.list(), thread, &java_thread, NULL); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1091 |
if (err != JVMTI_ERROR_NONE) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1092 |
return err; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1093 |
} |
1 | 1094 |
|
1095 |
Thread::interrupt(java_thread); |
|
1096 |
||
1097 |
return JVMTI_ERROR_NONE; |
|
1098 |
} /* end InterruptThread */ |
|
1099 |
||
1100 |
||
1101 |
// Threads_lock NOT held |
|
1102 |
// thread - NOT pre-checked |
|
1103 |
// info_ptr - pre-checked for NULL |
|
1104 |
jvmtiError |
|
1105 |
JvmtiEnv::GetThreadInfo(jthread thread, jvmtiThreadInfo* info_ptr) { |
|
1106 |
ResourceMark rm; |
|
1107 |
HandleMark hm; |
|
1108 |
||
1109 |
JavaThread* current_thread = JavaThread::current(); |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1110 |
ThreadsListHandle tlh(current_thread); |
1 | 1111 |
|
1112 |
// if thread is NULL the current thread is used |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1113 |
oop thread_oop = NULL; |
1 | 1114 |
if (thread == NULL) { |
1115 |
thread_oop = current_thread->threadObj(); |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1116 |
if (thread_oop == NULL || !thread_oop->is_a(SystemDictionary::Thread_klass())) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1117 |
return JVMTI_ERROR_INVALID_THREAD; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1118 |
} |
1 | 1119 |
} else { |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1120 |
JavaThread* java_thread = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1121 |
jvmtiError err = JvmtiExport::cv_external_thread_to_JavaThread(tlh.list(), thread, &java_thread, &thread_oop); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1122 |
if (err != JVMTI_ERROR_NONE) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1123 |
// We got an error code so we don't have a JavaThread *, but |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1124 |
// only return an error from here if we didn't get a valid |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1125 |
// thread_oop. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1126 |
if (thread_oop == NULL) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1127 |
return err; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1128 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1129 |
// We have a valid thread_oop so we can return some thread info. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1130 |
} |
1 | 1131 |
} |
1132 |
||
1133 |
Handle thread_obj(current_thread, thread_oop); |
|
27654 | 1134 |
Handle name; |
1 | 1135 |
ThreadPriority priority; |
1136 |
Handle thread_group; |
|
1137 |
Handle context_class_loader; |
|
1138 |
bool is_daemon; |
|
1139 |
||
1140 |
{ MutexLocker mu(Threads_lock); |
|
1141 |
||
27654 | 1142 |
name = Handle(current_thread, java_lang_Thread::name(thread_obj())); |
1 | 1143 |
priority = java_lang_Thread::priority(thread_obj()); |
1144 |
thread_group = Handle(current_thread, java_lang_Thread::threadGroup(thread_obj())); |
|
1145 |
is_daemon = java_lang_Thread::is_daemon(thread_obj()); |
|
1146 |
||
1147 |
oop loader = java_lang_Thread::context_class_loader(thread_obj()); |
|
1148 |
context_class_loader = Handle(current_thread, loader); |
|
1149 |
} |
|
1150 |
{ const char *n; |
|
1151 |
||
1152 |
if (name() != NULL) { |
|
27654 | 1153 |
n = java_lang_String::as_utf8_string(name()); |
1 | 1154 |
} else { |
42057
6a5b8ebcd3f2
8164612: NoSuchMethodException when method name contains NULL or Latin-1 supplement character
thartmann
parents:
40924
diff
changeset
|
1155 |
int utf8_length = 0; |
6a5b8ebcd3f2
8164612: NoSuchMethodException when method name contains NULL or Latin-1 supplement character
thartmann
parents:
40924
diff
changeset
|
1156 |
n = UNICODE::as_utf8((jchar*) NULL, utf8_length); |
1 | 1157 |
} |
1158 |
||
1159 |
info_ptr->name = (char *) jvmtiMalloc(strlen(n)+1); |
|
1160 |
if (info_ptr->name == NULL) |
|
1161 |
return JVMTI_ERROR_OUT_OF_MEMORY; |
|
1162 |
||
1163 |
strcpy(info_ptr->name, n); |
|
1164 |
} |
|
1165 |
info_ptr->is_daemon = is_daemon; |
|
1166 |
info_ptr->priority = priority; |
|
1167 |
||
1168 |
info_ptr->context_class_loader = (context_class_loader.is_null()) ? NULL : |
|
1169 |
jni_reference(context_class_loader); |
|
1170 |
info_ptr->thread_group = jni_reference(thread_group); |
|
1171 |
||
1172 |
return JVMTI_ERROR_NONE; |
|
1173 |
} /* end GetThreadInfo */ |
|
1174 |
||
1175 |
||
1176 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1177 |
// java_thread - pre-checked |
|
1178 |
// owned_monitor_count_ptr - pre-checked for NULL |
|
1179 |
// owned_monitors_ptr - pre-checked for NULL |
|
1180 |
jvmtiError |
|
1181 |
JvmtiEnv::GetOwnedMonitorInfo(JavaThread* java_thread, jint* owned_monitor_count_ptr, jobject** owned_monitors_ptr) { |
|
1182 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
1183 |
JavaThread* calling_thread = JavaThread::current(); |
|
1184 |
||
1185 |
// growable array of jvmti monitors info on the C-heap |
|
1186 |
GrowableArray<jvmtiMonitorStackDepthInfo*> *owned_monitors_list = |
|
13195 | 1187 |
new (ResourceObj::C_HEAP, mtInternal) GrowableArray<jvmtiMonitorStackDepthInfo*>(1, true); |
1 | 1188 |
|
22797
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1189 |
// It is only safe to perform the direct operation on the current |
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1190 |
// thread. All other usage needs to use a vm-safepoint-op for safety. |
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1191 |
if (java_thread == calling_thread) { |
1 | 1192 |
err = get_owned_monitors(calling_thread, java_thread, owned_monitors_list); |
1193 |
} else { |
|
1194 |
// JVMTI get monitors info at safepoint. Do not require target thread to |
|
1195 |
// be suspended. |
|
1196 |
VM_GetOwnedMonitorInfo op(this, calling_thread, java_thread, owned_monitors_list); |
|
1197 |
VMThread::execute(&op); |
|
1198 |
err = op.result(); |
|
1199 |
} |
|
1200 |
jint owned_monitor_count = owned_monitors_list->length(); |
|
1201 |
if (err == JVMTI_ERROR_NONE) { |
|
1202 |
if ((err = allocate(owned_monitor_count * sizeof(jobject *), |
|
1203 |
(unsigned char**)owned_monitors_ptr)) == JVMTI_ERROR_NONE) { |
|
1204 |
// copy into the returned array |
|
1205 |
for (int i = 0; i < owned_monitor_count; i++) { |
|
1206 |
(*owned_monitors_ptr)[i] = |
|
1207 |
((jvmtiMonitorStackDepthInfo*)owned_monitors_list->at(i))->monitor; |
|
1208 |
} |
|
1209 |
*owned_monitor_count_ptr = owned_monitor_count; |
|
1210 |
} |
|
1211 |
} |
|
1212 |
// clean up. |
|
1213 |
for (int i = 0; i < owned_monitor_count; i++) { |
|
1214 |
deallocate((unsigned char*)owned_monitors_list->at(i)); |
|
1215 |
} |
|
1216 |
delete owned_monitors_list; |
|
1217 |
||
1218 |
return err; |
|
1219 |
} /* end GetOwnedMonitorInfo */ |
|
1220 |
||
1221 |
||
1222 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1223 |
// java_thread - pre-checked |
|
1224 |
// monitor_info_count_ptr - pre-checked for NULL |
|
1225 |
// monitor_info_ptr - pre-checked for NULL |
|
1226 |
jvmtiError |
|
1227 |
JvmtiEnv::GetOwnedMonitorStackDepthInfo(JavaThread* java_thread, jint* monitor_info_count_ptr, jvmtiMonitorStackDepthInfo** monitor_info_ptr) { |
|
1228 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
1229 |
JavaThread* calling_thread = JavaThread::current(); |
|
1230 |
||
1231 |
// growable array of jvmti monitors info on the C-heap |
|
1232 |
GrowableArray<jvmtiMonitorStackDepthInfo*> *owned_monitors_list = |
|
13195 | 1233 |
new (ResourceObj::C_HEAP, mtInternal) GrowableArray<jvmtiMonitorStackDepthInfo*>(1, true); |
1 | 1234 |
|
22797
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1235 |
// It is only safe to perform the direct operation on the current |
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1236 |
// thread. All other usage needs to use a vm-safepoint-op for safety. |
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1237 |
if (java_thread == calling_thread) { |
1 | 1238 |
err = get_owned_monitors(calling_thread, java_thread, owned_monitors_list); |
1239 |
} else { |
|
1240 |
// JVMTI get owned monitors info at safepoint. Do not require target thread to |
|
1241 |
// be suspended. |
|
1242 |
VM_GetOwnedMonitorInfo op(this, calling_thread, java_thread, owned_monitors_list); |
|
1243 |
VMThread::execute(&op); |
|
1244 |
err = op.result(); |
|
1245 |
} |
|
1246 |
||
1247 |
jint owned_monitor_count = owned_monitors_list->length(); |
|
1248 |
if (err == JVMTI_ERROR_NONE) { |
|
1249 |
if ((err = allocate(owned_monitor_count * sizeof(jvmtiMonitorStackDepthInfo), |
|
1250 |
(unsigned char**)monitor_info_ptr)) == JVMTI_ERROR_NONE) { |
|
1251 |
// copy to output array. |
|
1252 |
for (int i = 0; i < owned_monitor_count; i++) { |
|
1253 |
(*monitor_info_ptr)[i].monitor = |
|
1254 |
((jvmtiMonitorStackDepthInfo*)owned_monitors_list->at(i))->monitor; |
|
1255 |
(*monitor_info_ptr)[i].stack_depth = |
|
1256 |
((jvmtiMonitorStackDepthInfo*)owned_monitors_list->at(i))->stack_depth; |
|
1257 |
} |
|
1258 |
} |
|
1259 |
*monitor_info_count_ptr = owned_monitor_count; |
|
1260 |
} |
|
1261 |
||
1262 |
// clean up. |
|
1263 |
for (int i = 0; i < owned_monitor_count; i++) { |
|
1264 |
deallocate((unsigned char*)owned_monitors_list->at(i)); |
|
1265 |
} |
|
1266 |
delete owned_monitors_list; |
|
1267 |
||
1268 |
return err; |
|
1269 |
} /* end GetOwnedMonitorStackDepthInfo */ |
|
1270 |
||
1271 |
||
1272 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1273 |
// java_thread - pre-checked |
|
1274 |
// monitor_ptr - pre-checked for NULL |
|
1275 |
jvmtiError |
|
1276 |
JvmtiEnv::GetCurrentContendedMonitor(JavaThread* java_thread, jobject* monitor_ptr) { |
|
1277 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
1278 |
JavaThread* calling_thread = JavaThread::current(); |
|
22797
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1279 |
|
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1280 |
// It is only safe to perform the direct operation on the current |
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1281 |
// thread. All other usage needs to use a vm-safepoint-op for safety. |
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1282 |
if (java_thread == calling_thread) { |
1 | 1283 |
err = get_current_contended_monitor(calling_thread, java_thread, monitor_ptr); |
1284 |
} else { |
|
1285 |
// get contended monitor information at safepoint. |
|
1286 |
VM_GetCurrentContendedMonitor op(this, calling_thread, java_thread, monitor_ptr); |
|
1287 |
VMThread::execute(&op); |
|
1288 |
err = op.result(); |
|
1289 |
} |
|
1290 |
return err; |
|
1291 |
} /* end GetCurrentContendedMonitor */ |
|
1292 |
||
1293 |
||
1294 |
// Threads_lock NOT held |
|
1295 |
// thread - NOT pre-checked |
|
1296 |
// proc - pre-checked for NULL |
|
1297 |
// arg - NULL is a valid value, must be checked |
|
1298 |
jvmtiError |
|
1299 |
JvmtiEnv::RunAgentThread(jthread thread, jvmtiStartFunction proc, const void* arg, jint priority) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1300 |
JavaThread* current_thread = JavaThread::current(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1301 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1302 |
JavaThread* java_thread = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1303 |
oop thread_oop = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1304 |
ThreadsListHandle tlh(current_thread); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1305 |
jvmtiError err = JvmtiExport::cv_external_thread_to_JavaThread(tlh.list(), thread, &java_thread, &thread_oop); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1306 |
if (err != JVMTI_ERROR_NONE) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1307 |
// We got an error code so we don't have a JavaThread *, but |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1308 |
// only return an error from here if we didn't get a valid |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1309 |
// thread_oop. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1310 |
if (thread_oop == NULL) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1311 |
return err; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1312 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1313 |
// We have a valid thread_oop. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1314 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1315 |
|
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1316 |
if (java_thread != NULL) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1317 |
// 'thread' refers to an existing JavaThread. |
1 | 1318 |
return JVMTI_ERROR_INVALID_THREAD; |
1319 |
} |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1320 |
|
1 | 1321 |
if (priority < JVMTI_THREAD_MIN_PRIORITY || priority > JVMTI_THREAD_MAX_PRIORITY) { |
1322 |
return JVMTI_ERROR_INVALID_PRIORITY; |
|
1323 |
} |
|
1324 |
||
1325 |
Handle thread_hndl(current_thread, thread_oop); |
|
1326 |
{ |
|
1327 |
MutexLocker mu(Threads_lock); // grab Threads_lock |
|
1328 |
||
1329 |
JvmtiAgentThread *new_thread = new JvmtiAgentThread(this, proc, arg); |
|
1330 |
||
1331 |
// At this point it may be possible that no osthread was created for the |
|
1332 |
// JavaThread due to lack of memory. |
|
1333 |
if (new_thread == NULL || new_thread->osthread() == NULL) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1334 |
if (new_thread != NULL) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1335 |
new_thread->smr_delete(); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1336 |
} |
1 | 1337 |
return JVMTI_ERROR_OUT_OF_MEMORY; |
1338 |
} |
|
1339 |
||
1340 |
java_lang_Thread::set_thread(thread_hndl(), new_thread); |
|
1341 |
java_lang_Thread::set_priority(thread_hndl(), (ThreadPriority)priority); |
|
1342 |
java_lang_Thread::set_daemon(thread_hndl()); |
|
1343 |
||
1344 |
new_thread->set_threadObj(thread_hndl()); |
|
1345 |
Threads::add(new_thread); |
|
1346 |
Thread::start(new_thread); |
|
1347 |
} // unlock Threads_lock |
|
1348 |
||
1349 |
return JVMTI_ERROR_NONE; |
|
1350 |
} /* end RunAgentThread */ |
|
1351 |
||
1352 |
// |
|
1353 |
// Thread Group functions |
|
1354 |
// |
|
1355 |
||
1356 |
// group_count_ptr - pre-checked for NULL |
|
1357 |
// groups_ptr - pre-checked for NULL |
|
1358 |
jvmtiError |
|
1359 |
JvmtiEnv::GetTopThreadGroups(jint* group_count_ptr, jthreadGroup** groups_ptr) { |
|
1360 |
JavaThread* current_thread = JavaThread::current(); |
|
1361 |
||
1362 |
// Only one top level thread group now. |
|
1363 |
*group_count_ptr = 1; |
|
1364 |
||
1365 |
// Allocate memory to store global-refs to the thread groups. |
|
1366 |
// Assume this area is freed by caller. |
|
1367 |
*groups_ptr = (jthreadGroup *) jvmtiMalloc((sizeof(jthreadGroup)) * (*group_count_ptr)); |
|
1368 |
||
1369 |
NULL_CHECK(*groups_ptr, JVMTI_ERROR_OUT_OF_MEMORY); |
|
1370 |
||
1371 |
// Convert oop to Handle, then convert Handle to global-ref. |
|
1372 |
{ |
|
1373 |
HandleMark hm(current_thread); |
|
1374 |
Handle system_thread_group(current_thread, Universe::system_thread_group()); |
|
1375 |
*groups_ptr[0] = jni_reference(system_thread_group); |
|
1376 |
} |
|
1377 |
||
1378 |
return JVMTI_ERROR_NONE; |
|
1379 |
} /* end GetTopThreadGroups */ |
|
1380 |
||
1381 |
||
1382 |
// info_ptr - pre-checked for NULL |
|
1383 |
jvmtiError |
|
1384 |
JvmtiEnv::GetThreadGroupInfo(jthreadGroup group, jvmtiThreadGroupInfo* info_ptr) { |
|
1385 |
ResourceMark rm; |
|
1386 |
HandleMark hm; |
|
1387 |
||
1388 |
JavaThread* current_thread = JavaThread::current(); |
|
1389 |
||
1390 |
Handle group_obj (current_thread, JNIHandles::resolve_external_guard(group)); |
|
1391 |
NULL_CHECK(group_obj(), JVMTI_ERROR_INVALID_THREAD_GROUP); |
|
1392 |
||
33628 | 1393 |
const char* name; |
1 | 1394 |
Handle parent_group; |
1395 |
bool is_daemon; |
|
1396 |
ThreadPriority max_priority; |
|
1397 |
||
1398 |
{ MutexLocker mu(Threads_lock); |
|
1399 |
||
33628 | 1400 |
name = java_lang_ThreadGroup::name(group_obj()); |
1 | 1401 |
parent_group = Handle(current_thread, java_lang_ThreadGroup::parent(group_obj())); |
1402 |
is_daemon = java_lang_ThreadGroup::is_daemon(group_obj()); |
|
1403 |
max_priority = java_lang_ThreadGroup::maxPriority(group_obj()); |
|
1404 |
} |
|
1405 |
||
1406 |
info_ptr->is_daemon = is_daemon; |
|
1407 |
info_ptr->max_priority = max_priority; |
|
1408 |
info_ptr->parent = jni_reference(parent_group); |
|
1409 |
||
33628 | 1410 |
if (name != NULL) { |
1411 |
info_ptr->name = (char*)jvmtiMalloc(strlen(name)+1); |
|
1 | 1412 |
NULL_CHECK(info_ptr->name, JVMTI_ERROR_OUT_OF_MEMORY); |
33628 | 1413 |
strcpy(info_ptr->name, name); |
1 | 1414 |
} else { |
1415 |
info_ptr->name = NULL; |
|
1416 |
} |
|
1417 |
||
1418 |
return JVMTI_ERROR_NONE; |
|
1419 |
} /* end GetThreadGroupInfo */ |
|
1420 |
||
1421 |
||
1422 |
// thread_count_ptr - pre-checked for NULL |
|
1423 |
// threads_ptr - pre-checked for NULL |
|
1424 |
// group_count_ptr - pre-checked for NULL |
|
1425 |
// groups_ptr - pre-checked for NULL |
|
1426 |
jvmtiError |
|
1427 |
JvmtiEnv::GetThreadGroupChildren(jthreadGroup group, jint* thread_count_ptr, jthread** threads_ptr, jint* group_count_ptr, jthreadGroup** groups_ptr) { |
|
1428 |
JavaThread* current_thread = JavaThread::current(); |
|
1429 |
oop group_obj = (oop) JNIHandles::resolve_external_guard(group); |
|
1430 |
NULL_CHECK(group_obj, JVMTI_ERROR_INVALID_THREAD_GROUP); |
|
1431 |
||
1432 |
Handle *thread_objs = NULL; |
|
1433 |
Handle *group_objs = NULL; |
|
1434 |
int nthreads = 0; |
|
1435 |
int ngroups = 0; |
|
1436 |
int hidden_threads = 0; |
|
1437 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1438 |
ResourceMark rm(current_thread); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1439 |
HandleMark hm(current_thread); |
1 | 1440 |
|
1441 |
Handle group_hdl(current_thread, group_obj); |
|
1442 |
||
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1443 |
{ // Cannot allow thread or group counts to change. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1444 |
MutexLocker mu(Threads_lock); |
1 | 1445 |
|
1446 |
nthreads = java_lang_ThreadGroup::nthreads(group_hdl()); |
|
1447 |
ngroups = java_lang_ThreadGroup::ngroups(group_hdl()); |
|
1448 |
||
1449 |
if (nthreads > 0) { |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1450 |
ThreadsListHandle tlh(current_thread); |
1 | 1451 |
objArrayOop threads = java_lang_ThreadGroup::threads(group_hdl()); |
1452 |
assert(nthreads <= threads->length(), "too many threads"); |
|
1453 |
thread_objs = NEW_RESOURCE_ARRAY(Handle,nthreads); |
|
1454 |
for (int i=0, j=0; i<nthreads; i++) { |
|
1455 |
oop thread_obj = threads->obj_at(i); |
|
1456 |
assert(thread_obj != NULL, "thread_obj is NULL"); |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1457 |
JavaThread *java_thread = NULL; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1458 |
jvmtiError err = JvmtiExport::cv_oop_to_JavaThread(tlh.list(), thread_obj, &java_thread); |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1459 |
if (err == JVMTI_ERROR_NONE) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1460 |
// Have a valid JavaThread*. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1461 |
if (java_thread->is_hidden_from_external_view()) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1462 |
// Filter out hidden java threads. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1463 |
hidden_threads++; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1464 |
continue; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1465 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1466 |
} else { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1467 |
// We couldn't convert thread_obj into a JavaThread*. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1468 |
if (err == JVMTI_ERROR_INVALID_THREAD) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1469 |
// The thread_obj does not refer to a java.lang.Thread object |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1470 |
// so skip it. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1471 |
hidden_threads++; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1472 |
continue; |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1473 |
} |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1474 |
// We have a valid thread_obj, but no JavaThread*; the caller |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1475 |
// can still have limited use for the thread_obj. |
1 | 1476 |
} |
1477 |
thread_objs[j++] = Handle(current_thread, thread_obj); |
|
1478 |
} |
|
1479 |
nthreads -= hidden_threads; |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1480 |
} // ThreadsListHandle is destroyed here. |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1481 |
|
1 | 1482 |
if (ngroups > 0) { |
1483 |
objArrayOop groups = java_lang_ThreadGroup::groups(group_hdl()); |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1484 |
assert(ngroups <= groups->length(), "too many groups"); |
1 | 1485 |
group_objs = NEW_RESOURCE_ARRAY(Handle,ngroups); |
1486 |
for (int i=0; i<ngroups; i++) { |
|
1487 |
oop group_obj = groups->obj_at(i); |
|
1488 |
assert(group_obj != NULL, "group_obj != NULL"); |
|
1489 |
group_objs[i] = Handle(current_thread, group_obj); |
|
1490 |
} |
|
1491 |
} |
|
1492 |
} |
|
1493 |
||
1494 |
// have to make global handles outside of Threads_lock |
|
1495 |
*group_count_ptr = ngroups; |
|
1496 |
*thread_count_ptr = nthreads; |
|
1497 |
*threads_ptr = new_jthreadArray(nthreads, thread_objs); |
|
1498 |
*groups_ptr = new_jthreadGroupArray(ngroups, group_objs); |
|
1499 |
if ((nthreads > 0) && (*threads_ptr == NULL)) { |
|
1500 |
return JVMTI_ERROR_OUT_OF_MEMORY; |
|
1501 |
} |
|
1502 |
if ((ngroups > 0) && (*groups_ptr == NULL)) { |
|
1503 |
return JVMTI_ERROR_OUT_OF_MEMORY; |
|
1504 |
} |
|
1505 |
||
1506 |
return JVMTI_ERROR_NONE; |
|
1507 |
} /* end GetThreadGroupChildren */ |
|
1508 |
||
1509 |
||
1510 |
// |
|
1511 |
// Stack Frame functions |
|
1512 |
// |
|
1513 |
||
1514 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1515 |
// java_thread - pre-checked |
|
1516 |
// max_frame_count - pre-checked to be greater than or equal to 0 |
|
1517 |
// frame_buffer - pre-checked for NULL |
|
1518 |
// count_ptr - pre-checked for NULL |
|
1519 |
jvmtiError |
|
1520 |
JvmtiEnv::GetStackTrace(JavaThread* java_thread, jint start_depth, jint max_frame_count, jvmtiFrameInfo* frame_buffer, jint* count_ptr) { |
|
1521 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
22797
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1522 |
|
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1523 |
// It is only safe to perform the direct operation on the current |
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1524 |
// thread. All other usage needs to use a vm-safepoint-op for safety. |
a4bbf1828275
8034249: need more workarounds for suspend equivalent condition issue
sspitsyn
parents:
22738
diff
changeset
|
1525 |
if (java_thread == JavaThread::current()) { |
1 | 1526 |
err = get_stack_trace(java_thread, start_depth, max_frame_count, frame_buffer, count_ptr); |
1527 |
} else { |
|
1528 |
// JVMTI get stack trace at safepoint. Do not require target thread to |
|
1529 |
// be suspended. |
|
1530 |
VM_GetStackTrace op(this, java_thread, start_depth, max_frame_count, frame_buffer, count_ptr); |
|
1531 |
VMThread::execute(&op); |
|
1532 |
err = op.result(); |
|
1533 |
} |
|
1534 |
||
1535 |
return err; |
|
1536 |
} /* end GetStackTrace */ |
|
1537 |
||
1538 |
||
1539 |
// max_frame_count - pre-checked to be greater than or equal to 0 |
|
1540 |
// stack_info_ptr - pre-checked for NULL |
|
1541 |
// thread_count_ptr - pre-checked for NULL |
|
1542 |
jvmtiError |
|
1543 |
JvmtiEnv::GetAllStackTraces(jint max_frame_count, jvmtiStackInfo** stack_info_ptr, jint* thread_count_ptr) { |
|
1544 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
1545 |
JavaThread* calling_thread = JavaThread::current(); |
|
1546 |
||
1547 |
// JVMTI get stack traces at safepoint. |
|
1548 |
VM_GetAllStackTraces op(this, calling_thread, max_frame_count); |
|
1549 |
VMThread::execute(&op); |
|
1550 |
*thread_count_ptr = op.final_thread_count(); |
|
1551 |
*stack_info_ptr = op.stack_info(); |
|
1552 |
err = op.result(); |
|
1553 |
return err; |
|
1554 |
} /* end GetAllStackTraces */ |
|
1555 |
||
1556 |
||
1557 |
// thread_count - pre-checked to be greater than or equal to 0 |
|
1558 |
// thread_list - pre-checked for NULL |
|
1559 |
// max_frame_count - pre-checked to be greater than or equal to 0 |
|
1560 |
// stack_info_ptr - pre-checked for NULL |
|
1561 |
jvmtiError |
|
1562 |
JvmtiEnv::GetThreadListStackTraces(jint thread_count, const jthread* thread_list, jint max_frame_count, jvmtiStackInfo** stack_info_ptr) { |
|
1563 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
1564 |
// JVMTI get stack traces at safepoint. |
|
1565 |
VM_GetThreadListStackTraces op(this, thread_count, thread_list, max_frame_count); |
|
1566 |
VMThread::execute(&op); |
|
1567 |
err = op.result(); |
|
1568 |
if (err == JVMTI_ERROR_NONE) { |
|
1569 |
*stack_info_ptr = op.stack_info(); |
|
1570 |
} |
|
1571 |
return err; |
|
1572 |
} /* end GetThreadListStackTraces */ |
|
1573 |
||
1574 |
||
1575 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1576 |
// java_thread - pre-checked |
|
1577 |
// count_ptr - pre-checked for NULL |
|
1578 |
jvmtiError |
|
1579 |
JvmtiEnv::GetFrameCount(JavaThread* java_thread, jint* count_ptr) { |
|
1580 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
1581 |
||
1582 |
// retrieve or create JvmtiThreadState. |
|
1583 |
JvmtiThreadState* state = JvmtiThreadState::state_for(java_thread); |
|
2135
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1584 |
if (state == NULL) { |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1585 |
return JVMTI_ERROR_THREAD_NOT_ALIVE; |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1586 |
} |
22738
e2e6f03308f9
8032223: nsk/regression/b4663146 gets assert(SafepointSynchronize::is_at_safepoint() || JvmtiEnv::is_thread_fully_suspended(get_thread(), false, &debug_bits))
sspitsyn
parents:
21079
diff
changeset
|
1587 |
|
e2e6f03308f9
8032223: nsk/regression/b4663146 gets assert(SafepointSynchronize::is_at_safepoint() || JvmtiEnv::is_thread_fully_suspended(get_thread(), false, &debug_bits))
sspitsyn
parents:
21079
diff
changeset
|
1588 |
// It is only safe to perform the direct operation on the current |
e2e6f03308f9
8032223: nsk/regression/b4663146 gets assert(SafepointSynchronize::is_at_safepoint() || JvmtiEnv::is_thread_fully_suspended(get_thread(), false, &debug_bits))
sspitsyn
parents:
21079
diff
changeset
|
1589 |
// thread. All other usage needs to use a vm-safepoint-op for safety. |
e2e6f03308f9
8032223: nsk/regression/b4663146 gets assert(SafepointSynchronize::is_at_safepoint() || JvmtiEnv::is_thread_fully_suspended(get_thread(), false, &debug_bits))
sspitsyn
parents:
21079
diff
changeset
|
1590 |
if (java_thread == JavaThread::current()) { |
1 | 1591 |
err = get_frame_count(state, count_ptr); |
1592 |
} else { |
|
1593 |
// get java stack frame count at safepoint. |
|
1594 |
VM_GetFrameCount op(this, state, count_ptr); |
|
1595 |
VMThread::execute(&op); |
|
1596 |
err = op.result(); |
|
1597 |
} |
|
1598 |
return err; |
|
1599 |
} /* end GetFrameCount */ |
|
1600 |
||
1601 |
||
1602 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1603 |
// java_thread - pre-checked |
|
1604 |
jvmtiError |
|
1605 |
JvmtiEnv::PopFrame(JavaThread* java_thread) { |
|
1606 |
JavaThread* current_thread = JavaThread::current(); |
|
1607 |
HandleMark hm(current_thread); |
|
1608 |
uint32_t debug_bits = 0; |
|
1609 |
||
2135
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1610 |
// retrieve or create the state |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1611 |
JvmtiThreadState* state = JvmtiThreadState::state_for(java_thread); |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1612 |
if (state == NULL) { |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1613 |
return JVMTI_ERROR_THREAD_NOT_ALIVE; |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1614 |
} |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1615 |
|
1 | 1616 |
// Check if java_thread is fully suspended |
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1617 |
if (!java_thread->is_thread_fully_suspended(true /* wait for suspend completion */, &debug_bits)) { |
1 | 1618 |
return JVMTI_ERROR_THREAD_NOT_SUSPENDED; |
1619 |
} |
|
1620 |
// Check to see if a PopFrame was already in progress |
|
1621 |
if (java_thread->popframe_condition() != JavaThread::popframe_inactive) { |
|
1622 |
// Probably possible for JVMTI clients to trigger this, but the |
|
1623 |
// JPDA backend shouldn't allow this to happen |
|
1624 |
return JVMTI_ERROR_INTERNAL; |
|
1625 |
} |
|
1626 |
||
1627 |
{ |
|
1628 |
// Was workaround bug |
|
1629 |
// 4812902: popFrame hangs if the method is waiting at a synchronize |
|
1630 |
// Catch this condition and return an error to avoid hanging. |
|
1631 |
// Now JVMTI spec allows an implementation to bail out with an opaque frame error. |
|
1632 |
OSThread* osThread = java_thread->osthread(); |
|
1633 |
if (osThread->get_state() == MONITOR_WAIT) { |
|
1634 |
return JVMTI_ERROR_OPAQUE_FRAME; |
|
1635 |
} |
|
1636 |
} |
|
1637 |
||
1638 |
{ |
|
1639 |
ResourceMark rm(current_thread); |
|
1640 |
// Check if there are more than one Java frame in this thread, that the top two frames |
|
1641 |
// are Java (not native) frames, and that there is no intervening VM frame |
|
1642 |
int frame_count = 0; |
|
1643 |
bool is_interpreted[2]; |
|
1644 |
intptr_t *frame_sp[2]; |
|
1645 |
// The 2-nd arg of constructor is needed to stop iterating at java entry frame. |
|
1646 |
for (vframeStream vfs(java_thread, true); !vfs.at_end(); vfs.next()) { |
|
1647 |
methodHandle mh(current_thread, vfs.method()); |
|
1648 |
if (mh->is_native()) return(JVMTI_ERROR_OPAQUE_FRAME); |
|
1649 |
is_interpreted[frame_count] = vfs.is_interpreted_frame(); |
|
1650 |
frame_sp[frame_count] = vfs.frame_id(); |
|
1651 |
if (++frame_count > 1) break; |
|
1652 |
} |
|
1653 |
if (frame_count < 2) { |
|
1654 |
// We haven't found two adjacent non-native Java frames on the top. |
|
1655 |
// There can be two situations here: |
|
1656 |
// 1. There are no more java frames |
|
1657 |
// 2. Two top java frames are separated by non-java native frames |
|
1658 |
if(vframeFor(java_thread, 1) == NULL) { |
|
1659 |
return JVMTI_ERROR_NO_MORE_FRAMES; |
|
1660 |
} else { |
|
1661 |
// Intervening non-java native or VM frames separate java frames. |
|
1662 |
// Current implementation does not support this. See bug #5031735. |
|
1663 |
// In theory it is possible to pop frames in such cases. |
|
1664 |
return JVMTI_ERROR_OPAQUE_FRAME; |
|
1665 |
} |
|
1666 |
} |
|
1667 |
||
1668 |
// If any of the top 2 frames is a compiled one, need to deoptimize it |
|
1669 |
for (int i = 0; i < 2; i++) { |
|
1670 |
if (!is_interpreted[i]) { |
|
7106
867c9d296c6b
6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents:
5547
diff
changeset
|
1671 |
Deoptimization::deoptimize_frame(java_thread, frame_sp[i]); |
1 | 1672 |
} |
1673 |
} |
|
1674 |
||
1675 |
// Update the thread state to reflect that the top frame is popped |
|
1676 |
// so that cur_stack_depth is maintained properly and all frameIDs |
|
1677 |
// are invalidated. |
|
1678 |
// The current frame will be popped later when the suspended thread |
|
1679 |
// is resumed and right before returning from VM to Java. |
|
1680 |
// (see call_VM_base() in assembler_<cpu>.cpp). |
|
1681 |
||
1682 |
// It's fine to update the thread state here because no JVMTI events |
|
1683 |
// shall be posted for this PopFrame. |
|
1684 |
||
23180
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1685 |
// It is only safe to perform the direct operation on the current |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1686 |
// thread. All other usage needs to use a vm-safepoint-op for safety. |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1687 |
if (java_thread == JavaThread::current()) { |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1688 |
state->update_for_pop_top_frame(); |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1689 |
} else { |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1690 |
VM_UpdateForPopTopFrame op(state); |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1691 |
VMThread::execute(&op); |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1692 |
jvmtiError err = op.result(); |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1693 |
if (err != JVMTI_ERROR_NONE) { |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1694 |
return err; |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1695 |
} |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1696 |
} |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1697 |
|
1 | 1698 |
java_thread->set_popframe_condition(JavaThread::popframe_pending_bit); |
1699 |
// Set pending step flag for this popframe and it is cleared when next |
|
1700 |
// step event is posted. |
|
1701 |
state->set_pending_step_for_popframe(); |
|
1702 |
} |
|
1703 |
||
1704 |
return JVMTI_ERROR_NONE; |
|
1705 |
} /* end PopFrame */ |
|
1706 |
||
1707 |
||
1708 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1709 |
// java_thread - pre-checked |
|
1710 |
// java_thread - unchecked |
|
1711 |
// depth - pre-checked as non-negative |
|
1712 |
// method_ptr - pre-checked for NULL |
|
1713 |
// location_ptr - pre-checked for NULL |
|
1714 |
jvmtiError |
|
1715 |
JvmtiEnv::GetFrameLocation(JavaThread* java_thread, jint depth, jmethodID* method_ptr, jlocation* location_ptr) { |
|
1716 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
22738
e2e6f03308f9
8032223: nsk/regression/b4663146 gets assert(SafepointSynchronize::is_at_safepoint() || JvmtiEnv::is_thread_fully_suspended(get_thread(), false, &debug_bits))
sspitsyn
parents:
21079
diff
changeset
|
1717 |
|
e2e6f03308f9
8032223: nsk/regression/b4663146 gets assert(SafepointSynchronize::is_at_safepoint() || JvmtiEnv::is_thread_fully_suspended(get_thread(), false, &debug_bits))
sspitsyn
parents:
21079
diff
changeset
|
1718 |
// It is only safe to perform the direct operation on the current |
e2e6f03308f9
8032223: nsk/regression/b4663146 gets assert(SafepointSynchronize::is_at_safepoint() || JvmtiEnv::is_thread_fully_suspended(get_thread(), false, &debug_bits))
sspitsyn
parents:
21079
diff
changeset
|
1719 |
// thread. All other usage needs to use a vm-safepoint-op for safety. |
e2e6f03308f9
8032223: nsk/regression/b4663146 gets assert(SafepointSynchronize::is_at_safepoint() || JvmtiEnv::is_thread_fully_suspended(get_thread(), false, &debug_bits))
sspitsyn
parents:
21079
diff
changeset
|
1720 |
if (java_thread == JavaThread::current()) { |
1 | 1721 |
err = get_frame_location(java_thread, depth, method_ptr, location_ptr); |
1722 |
} else { |
|
1723 |
// JVMTI get java stack frame location at safepoint. |
|
1724 |
VM_GetFrameLocation op(this, java_thread, depth, method_ptr, location_ptr); |
|
1725 |
VMThread::execute(&op); |
|
1726 |
err = op.result(); |
|
1727 |
} |
|
1728 |
return err; |
|
1729 |
} /* end GetFrameLocation */ |
|
1730 |
||
1731 |
||
1732 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1733 |
// java_thread - pre-checked |
|
1734 |
// java_thread - unchecked |
|
1735 |
// depth - pre-checked as non-negative |
|
1736 |
jvmtiError |
|
1737 |
JvmtiEnv::NotifyFramePop(JavaThread* java_thread, jint depth) { |
|
23180
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1738 |
jvmtiError err = JVMTI_ERROR_NONE; |
1 | 1739 |
ResourceMark rm; |
1740 |
uint32_t debug_bits = 0; |
|
1741 |
||
2135
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1742 |
JvmtiThreadState *state = JvmtiThreadState::state_for(java_thread); |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1743 |
if (state == NULL) { |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1744 |
return JVMTI_ERROR_THREAD_NOT_ALIVE; |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1745 |
} |
f82c3012ec86
6800721: 3/4 JavaThread::jvmti_thread_state() and JvmtiThreadState::state_for() robustness
dcubed
parents:
1
diff
changeset
|
1746 |
|
48105
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1747 |
if (!java_thread->is_thread_fully_suspended(true, &debug_bits)) { |
8d15b1369c7a
8167108: inconsistent handling of SR_lock can lead to crashes
dcubed
parents:
47216
diff
changeset
|
1748 |
return JVMTI_ERROR_THREAD_NOT_SUSPENDED; |
1 | 1749 |
} |
1750 |
||
1751 |
if (TraceJVMTICalls) { |
|
1752 |
JvmtiSuspendControl::print(); |
|
1753 |
} |
|
1754 |
||
1755 |
vframe *vf = vframeFor(java_thread, depth); |
|
1756 |
if (vf == NULL) { |
|
1757 |
return JVMTI_ERROR_NO_MORE_FRAMES; |
|
1758 |
} |
|
1759 |
||
1760 |
if (!vf->is_java_frame() || ((javaVFrame*) vf)->method()->is_native()) { |
|
1761 |
return JVMTI_ERROR_OPAQUE_FRAME; |
|
1762 |
} |
|
1763 |
||
1764 |
assert(vf->frame_pointer() != NULL, "frame pointer mustn't be NULL"); |
|
1765 |
||
23180
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1766 |
// It is only safe to perform the direct operation on the current |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1767 |
// thread. All other usage needs to use a vm-safepoint-op for safety. |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1768 |
if (java_thread == JavaThread::current()) { |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1769 |
int frame_number = state->count_frames() - depth; |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1770 |
state->env_thread_state(this)->set_frame_pop(frame_number); |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1771 |
} else { |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1772 |
VM_SetFramePop op(this, state, depth); |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1773 |
VMThread::execute(&op); |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1774 |
err = op.result(); |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1775 |
} |
e87156376bed
6471769: Error: assert(_cur_stack_depth == count_frames(),"cur_stack_depth out of sync")
sspitsyn
parents:
22797
diff
changeset
|
1776 |
return err; |
1 | 1777 |
} /* end NotifyFramePop */ |
1778 |
||
1779 |
||
1780 |
// |
|
1781 |
// Force Early Return functions |
|
1782 |
// |
|
1783 |
||
1784 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1785 |
// java_thread - pre-checked |
|
1786 |
jvmtiError |
|
1787 |
JvmtiEnv::ForceEarlyReturnObject(JavaThread* java_thread, jobject value) { |
|
1788 |
jvalue val; |
|
1789 |
val.l = value; |
|
1790 |
return force_early_return(java_thread, val, atos); |
|
1791 |
} /* end ForceEarlyReturnObject */ |
|
1792 |
||
1793 |
||
1794 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1795 |
// java_thread - pre-checked |
|
1796 |
jvmtiError |
|
1797 |
JvmtiEnv::ForceEarlyReturnInt(JavaThread* java_thread, jint value) { |
|
1798 |
jvalue val; |
|
1799 |
val.i = value; |
|
1800 |
return force_early_return(java_thread, val, itos); |
|
1801 |
} /* end ForceEarlyReturnInt */ |
|
1802 |
||
1803 |
||
1804 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1805 |
// java_thread - pre-checked |
|
1806 |
jvmtiError |
|
1807 |
JvmtiEnv::ForceEarlyReturnLong(JavaThread* java_thread, jlong value) { |
|
1808 |
jvalue val; |
|
1809 |
val.j = value; |
|
1810 |
return force_early_return(java_thread, val, ltos); |
|
1811 |
} /* end ForceEarlyReturnLong */ |
|
1812 |
||
1813 |
||
1814 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1815 |
// java_thread - pre-checked |
|
1816 |
jvmtiError |
|
1817 |
JvmtiEnv::ForceEarlyReturnFloat(JavaThread* java_thread, jfloat value) { |
|
1818 |
jvalue val; |
|
1819 |
val.f = value; |
|
1820 |
return force_early_return(java_thread, val, ftos); |
|
1821 |
} /* end ForceEarlyReturnFloat */ |
|
1822 |
||
1823 |
||
1824 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1825 |
// java_thread - pre-checked |
|
1826 |
jvmtiError |
|
1827 |
JvmtiEnv::ForceEarlyReturnDouble(JavaThread* java_thread, jdouble value) { |
|
1828 |
jvalue val; |
|
1829 |
val.d = value; |
|
1830 |
return force_early_return(java_thread, val, dtos); |
|
1831 |
} /* end ForceEarlyReturnDouble */ |
|
1832 |
||
1833 |
||
1834 |
// Threads_lock NOT held, java_thread not protected by lock |
|
1835 |
// java_thread - pre-checked |
|
1836 |
jvmtiError |
|
1837 |
JvmtiEnv::ForceEarlyReturnVoid(JavaThread* java_thread) { |
|
1838 |
jvalue val; |
|
1839 |
val.j = 0L; |
|
1840 |
return force_early_return(java_thread, val, vtos); |
|
1841 |
} /* end ForceEarlyReturnVoid */ |
|
1842 |
||
1843 |
||
1844 |
// |
|
1845 |
// Heap functions |
|
1846 |
// |
|
1847 |
||
1848 |
// klass - NULL is a valid value, must be checked |
|
1849 |
// initial_object - NULL is a valid value, must be checked |
|
1850 |
// callbacks - pre-checked for NULL |
|
1851 |
// user_data - NULL is a valid value, must be checked |
|
1852 |
jvmtiError |
|
1853 |
JvmtiEnv::FollowReferences(jint heap_filter, jclass klass, jobject initial_object, const jvmtiHeapCallbacks* callbacks, const void* user_data) { |
|
1854 |
// check klass if provided |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1855 |
Klass* k = NULL; |
1 | 1856 |
if (klass != NULL) { |
1857 |
oop k_mirror = JNIHandles::resolve_external_guard(klass); |
|
1858 |
if (k_mirror == NULL) { |
|
1859 |
return JVMTI_ERROR_INVALID_CLASS; |
|
1860 |
} |
|
1861 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
1862 |
return JVMTI_ERROR_NONE; |
|
1863 |
} |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1864 |
k = java_lang_Class::as_Klass(k_mirror); |
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1865 |
if (klass == NULL) { |
1 | 1866 |
return JVMTI_ERROR_INVALID_CLASS; |
1867 |
} |
|
1868 |
} |
|
1869 |
||
44406
a46a6c4d1dd9
8176100: [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
mgerdin
parents:
44093
diff
changeset
|
1870 |
if (initial_object != NULL) { |
a46a6c4d1dd9
8176100: [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
mgerdin
parents:
44093
diff
changeset
|
1871 |
oop init_obj = JNIHandles::resolve_external_guard(initial_object); |
a46a6c4d1dd9
8176100: [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
mgerdin
parents:
44093
diff
changeset
|
1872 |
if (init_obj == NULL) { |
a46a6c4d1dd9
8176100: [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
mgerdin
parents:
44093
diff
changeset
|
1873 |
return JVMTI_ERROR_INVALID_OBJECT; |
a46a6c4d1dd9
8176100: [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
mgerdin
parents:
44093
diff
changeset
|
1874 |
} |
a46a6c4d1dd9
8176100: [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
mgerdin
parents:
44093
diff
changeset
|
1875 |
} |
a46a6c4d1dd9
8176100: [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
mgerdin
parents:
44093
diff
changeset
|
1876 |
|
1 | 1877 |
Thread *thread = Thread::current(); |
1878 |
HandleMark hm(thread); |
|
1879 |
||
37993 | 1880 |
TraceTime t("FollowReferences", TRACETIME_LOG(Debug, jvmti, objecttagging)); |
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1881 |
JvmtiTagMap::tag_map_for(this)->follow_references(heap_filter, k, initial_object, callbacks, user_data); |
1 | 1882 |
return JVMTI_ERROR_NONE; |
1883 |
} /* end FollowReferences */ |
|
1884 |
||
1885 |
||
1886 |
// klass - NULL is a valid value, must be checked |
|
1887 |
// callbacks - pre-checked for NULL |
|
1888 |
// user_data - NULL is a valid value, must be checked |
|
1889 |
jvmtiError |
|
1890 |
JvmtiEnv::IterateThroughHeap(jint heap_filter, jclass klass, const jvmtiHeapCallbacks* callbacks, const void* user_data) { |
|
1891 |
// check klass if provided |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1892 |
Klass* k = NULL; |
1 | 1893 |
if (klass != NULL) { |
1894 |
oop k_mirror = JNIHandles::resolve_external_guard(klass); |
|
1895 |
if (k_mirror == NULL) { |
|
1896 |
return JVMTI_ERROR_INVALID_CLASS; |
|
1897 |
} |
|
1898 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
1899 |
return JVMTI_ERROR_NONE; |
|
1900 |
} |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1901 |
k = java_lang_Class::as_Klass(k_mirror); |
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1902 |
if (k == NULL) { |
1 | 1903 |
return JVMTI_ERROR_INVALID_CLASS; |
1904 |
} |
|
1905 |
} |
|
1906 |
||
37993 | 1907 |
TraceTime t("IterateThroughHeap", TRACETIME_LOG(Debug, jvmti, objecttagging)); |
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1908 |
JvmtiTagMap::tag_map_for(this)->iterate_through_heap(heap_filter, k, callbacks, user_data); |
1 | 1909 |
return JVMTI_ERROR_NONE; |
1910 |
} /* end IterateThroughHeap */ |
|
1911 |
||
1912 |
||
1913 |
// tag_ptr - pre-checked for NULL |
|
1914 |
jvmtiError |
|
1915 |
JvmtiEnv::GetTag(jobject object, jlong* tag_ptr) { |
|
1916 |
oop o = JNIHandles::resolve_external_guard(object); |
|
1917 |
NULL_CHECK(o, JVMTI_ERROR_INVALID_OBJECT); |
|
1918 |
*tag_ptr = JvmtiTagMap::tag_map_for(this)->get_tag(object); |
|
1919 |
return JVMTI_ERROR_NONE; |
|
1920 |
} /* end GetTag */ |
|
1921 |
||
1922 |
||
1923 |
jvmtiError |
|
1924 |
JvmtiEnv::SetTag(jobject object, jlong tag) { |
|
1925 |
oop o = JNIHandles::resolve_external_guard(object); |
|
1926 |
NULL_CHECK(o, JVMTI_ERROR_INVALID_OBJECT); |
|
1927 |
JvmtiTagMap::tag_map_for(this)->set_tag(object, tag); |
|
1928 |
return JVMTI_ERROR_NONE; |
|
1929 |
} /* end SetTag */ |
|
1930 |
||
1931 |
||
1932 |
// tag_count - pre-checked to be greater than or equal to 0 |
|
1933 |
// tags - pre-checked for NULL |
|
1934 |
// count_ptr - pre-checked for NULL |
|
1935 |
// object_result_ptr - NULL is a valid value, must be checked |
|
1936 |
// tag_result_ptr - NULL is a valid value, must be checked |
|
1937 |
jvmtiError |
|
1938 |
JvmtiEnv::GetObjectsWithTags(jint tag_count, const jlong* tags, jint* count_ptr, jobject** object_result_ptr, jlong** tag_result_ptr) { |
|
37993 | 1939 |
TraceTime t("GetObjectsWithTags", TRACETIME_LOG(Debug, jvmti, objecttagging)); |
1 | 1940 |
return JvmtiTagMap::tag_map_for(this)->get_objects_with_tags((jlong*)tags, tag_count, count_ptr, object_result_ptr, tag_result_ptr); |
1941 |
} /* end GetObjectsWithTags */ |
|
1942 |
||
1943 |
||
1944 |
jvmtiError |
|
1945 |
JvmtiEnv::ForceGarbageCollection() { |
|
1946 |
Universe::heap()->collect(GCCause::_jvmti_force_gc); |
|
1947 |
return JVMTI_ERROR_NONE; |
|
1948 |
} /* end ForceGarbageCollection */ |
|
1949 |
||
1950 |
||
1951 |
// |
|
1952 |
// Heap (1.0) functions |
|
1953 |
// |
|
1954 |
||
1955 |
// object_reference_callback - pre-checked for NULL |
|
1956 |
// user_data - NULL is a valid value, must be checked |
|
1957 |
jvmtiError |
|
1958 |
JvmtiEnv::IterateOverObjectsReachableFromObject(jobject object, jvmtiObjectReferenceCallback object_reference_callback, const void* user_data) { |
|
1959 |
oop o = JNIHandles::resolve_external_guard(object); |
|
1960 |
NULL_CHECK(o, JVMTI_ERROR_INVALID_OBJECT); |
|
1961 |
JvmtiTagMap::tag_map_for(this)->iterate_over_objects_reachable_from_object(object, object_reference_callback, user_data); |
|
1962 |
return JVMTI_ERROR_NONE; |
|
1963 |
} /* end IterateOverObjectsReachableFromObject */ |
|
1964 |
||
1965 |
||
1966 |
// heap_root_callback - NULL is a valid value, must be checked |
|
1967 |
// stack_ref_callback - NULL is a valid value, must be checked |
|
1968 |
// object_ref_callback - NULL is a valid value, must be checked |
|
1969 |
// user_data - NULL is a valid value, must be checked |
|
1970 |
jvmtiError |
|
1971 |
JvmtiEnv::IterateOverReachableObjects(jvmtiHeapRootCallback heap_root_callback, jvmtiStackReferenceCallback stack_ref_callback, jvmtiObjectReferenceCallback object_ref_callback, const void* user_data) { |
|
37993 | 1972 |
TraceTime t("IterateOverReachableObjects", TRACETIME_LOG(Debug, jvmti, objecttagging)); |
1 | 1973 |
JvmtiTagMap::tag_map_for(this)->iterate_over_reachable_objects(heap_root_callback, stack_ref_callback, object_ref_callback, user_data); |
1974 |
return JVMTI_ERROR_NONE; |
|
1975 |
} /* end IterateOverReachableObjects */ |
|
1976 |
||
1977 |
||
1978 |
// heap_object_callback - pre-checked for NULL |
|
1979 |
// user_data - NULL is a valid value, must be checked |
|
1980 |
jvmtiError |
|
1981 |
JvmtiEnv::IterateOverHeap(jvmtiHeapObjectFilter object_filter, jvmtiHeapObjectCallback heap_object_callback, const void* user_data) { |
|
37993 | 1982 |
TraceTime t("IterateOverHeap", TRACETIME_LOG(Debug, jvmti, objecttagging)); |
1 | 1983 |
Thread *thread = Thread::current(); |
1984 |
HandleMark hm(thread); |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1985 |
JvmtiTagMap::tag_map_for(this)->iterate_over_heap(object_filter, NULL, heap_object_callback, user_data); |
1 | 1986 |
return JVMTI_ERROR_NONE; |
1987 |
} /* end IterateOverHeap */ |
|
1988 |
||
1989 |
||
1990 |
// k_mirror - may be primitive, this must be checked |
|
1991 |
// heap_object_callback - pre-checked for NULL |
|
1992 |
// user_data - NULL is a valid value, must be checked |
|
1993 |
jvmtiError |
|
1994 |
JvmtiEnv::IterateOverInstancesOfClass(oop k_mirror, jvmtiHeapObjectFilter object_filter, jvmtiHeapObjectCallback heap_object_callback, const void* user_data) { |
|
1995 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
1996 |
// DO PRIMITIVE CLASS PROCESSING |
|
1997 |
return JVMTI_ERROR_NONE; |
|
1998 |
} |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
1999 |
Klass* klass = java_lang_Class::as_Klass(k_mirror); |
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2000 |
if (klass == NULL) { |
1 | 2001 |
return JVMTI_ERROR_INVALID_CLASS; |
2002 |
} |
|
37993 | 2003 |
TraceTime t("IterateOverInstancesOfClass", TRACETIME_LOG(Debug, jvmti, objecttagging)); |
1 | 2004 |
JvmtiTagMap::tag_map_for(this)->iterate_over_heap(object_filter, klass, heap_object_callback, user_data); |
2005 |
return JVMTI_ERROR_NONE; |
|
2006 |
} /* end IterateOverInstancesOfClass */ |
|
2007 |
||
2008 |
||
2009 |
// |
|
2010 |
// Local Variable functions |
|
2011 |
// |
|
2012 |
||
2013 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2014 |
// java_thread - pre-checked |
|
2015 |
// java_thread - unchecked |
|
2016 |
// depth - pre-checked as non-negative |
|
2017 |
// value_ptr - pre-checked for NULL |
|
2018 |
jvmtiError |
|
2019 |
JvmtiEnv::GetLocalObject(JavaThread* java_thread, jint depth, jint slot, jobject* value_ptr) { |
|
2020 |
JavaThread* current_thread = JavaThread::current(); |
|
2021 |
// rm object is created to clean up the javaVFrame created in |
|
2022 |
// doit_prologue(), but after doit() is finished with it. |
|
2023 |
ResourceMark rm(current_thread); |
|
2024 |
||
2025 |
VM_GetOrSetLocal op(java_thread, current_thread, depth, slot); |
|
2026 |
VMThread::execute(&op); |
|
2027 |
jvmtiError err = op.result(); |
|
2028 |
if (err != JVMTI_ERROR_NONE) { |
|
2029 |
return err; |
|
2030 |
} else { |
|
2031 |
*value_ptr = op.value().l; |
|
2032 |
return JVMTI_ERROR_NONE; |
|
2033 |
} |
|
2034 |
} /* end GetLocalObject */ |
|
2035 |
||
7444 | 2036 |
// Threads_lock NOT held, java_thread not protected by lock |
2037 |
// java_thread - pre-checked |
|
2038 |
// java_thread - unchecked |
|
2039 |
// depth - pre-checked as non-negative |
|
2040 |
// value - pre-checked for NULL |
|
2041 |
jvmtiError |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7444
diff
changeset
|
2042 |
JvmtiEnv::GetLocalInstance(JavaThread* java_thread, jint depth, jobject* value_ptr){ |
7444 | 2043 |
JavaThread* current_thread = JavaThread::current(); |
2044 |
// rm object is created to clean up the javaVFrame created in |
|
2045 |
// doit_prologue(), but after doit() is finished with it. |
|
2046 |
ResourceMark rm(current_thread); |
|
2047 |
||
2048 |
VM_GetReceiver op(java_thread, current_thread, depth); |
|
2049 |
VMThread::execute(&op); |
|
2050 |
jvmtiError err = op.result(); |
|
2051 |
if (err != JVMTI_ERROR_NONE) { |
|
2052 |
return err; |
|
2053 |
} else { |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7444
diff
changeset
|
2054 |
*value_ptr = op.value().l; |
7444 | 2055 |
return JVMTI_ERROR_NONE; |
2056 |
} |
|
2057 |
} /* end GetLocalInstance */ |
|
2058 |
||
1 | 2059 |
|
2060 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2061 |
// java_thread - pre-checked |
|
2062 |
// java_thread - unchecked |
|
2063 |
// depth - pre-checked as non-negative |
|
2064 |
// value_ptr - pre-checked for NULL |
|
2065 |
jvmtiError |
|
2066 |
JvmtiEnv::GetLocalInt(JavaThread* java_thread, jint depth, jint slot, jint* value_ptr) { |
|
2067 |
// rm object is created to clean up the javaVFrame created in |
|
2068 |
// doit_prologue(), but after doit() is finished with it. |
|
2069 |
ResourceMark rm; |
|
2070 |
||
2071 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_INT); |
|
2072 |
VMThread::execute(&op); |
|
2073 |
*value_ptr = op.value().i; |
|
2074 |
return op.result(); |
|
2075 |
} /* end GetLocalInt */ |
|
2076 |
||
2077 |
||
2078 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2079 |
// java_thread - pre-checked |
|
2080 |
// java_thread - unchecked |
|
2081 |
// depth - pre-checked as non-negative |
|
2082 |
// value_ptr - pre-checked for NULL |
|
2083 |
jvmtiError |
|
2084 |
JvmtiEnv::GetLocalLong(JavaThread* java_thread, jint depth, jint slot, jlong* value_ptr) { |
|
2085 |
// rm object is created to clean up the javaVFrame created in |
|
2086 |
// doit_prologue(), but after doit() is finished with it. |
|
2087 |
ResourceMark rm; |
|
2088 |
||
2089 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_LONG); |
|
2090 |
VMThread::execute(&op); |
|
2091 |
*value_ptr = op.value().j; |
|
2092 |
return op.result(); |
|
2093 |
} /* end GetLocalLong */ |
|
2094 |
||
2095 |
||
2096 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2097 |
// java_thread - pre-checked |
|
2098 |
// java_thread - unchecked |
|
2099 |
// depth - pre-checked as non-negative |
|
2100 |
// value_ptr - pre-checked for NULL |
|
2101 |
jvmtiError |
|
2102 |
JvmtiEnv::GetLocalFloat(JavaThread* java_thread, jint depth, jint slot, jfloat* value_ptr) { |
|
2103 |
// rm object is created to clean up the javaVFrame created in |
|
2104 |
// doit_prologue(), but after doit() is finished with it. |
|
2105 |
ResourceMark rm; |
|
2106 |
||
2107 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_FLOAT); |
|
2108 |
VMThread::execute(&op); |
|
2109 |
*value_ptr = op.value().f; |
|
2110 |
return op.result(); |
|
2111 |
} /* end GetLocalFloat */ |
|
2112 |
||
2113 |
||
2114 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2115 |
// java_thread - pre-checked |
|
2116 |
// java_thread - unchecked |
|
2117 |
// depth - pre-checked as non-negative |
|
2118 |
// value_ptr - pre-checked for NULL |
|
2119 |
jvmtiError |
|
2120 |
JvmtiEnv::GetLocalDouble(JavaThread* java_thread, jint depth, jint slot, jdouble* value_ptr) { |
|
2121 |
// rm object is created to clean up the javaVFrame created in |
|
2122 |
// doit_prologue(), but after doit() is finished with it. |
|
2123 |
ResourceMark rm; |
|
2124 |
||
2125 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_DOUBLE); |
|
2126 |
VMThread::execute(&op); |
|
2127 |
*value_ptr = op.value().d; |
|
2128 |
return op.result(); |
|
2129 |
} /* end GetLocalDouble */ |
|
2130 |
||
2131 |
||
2132 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2133 |
// java_thread - pre-checked |
|
2134 |
// java_thread - unchecked |
|
2135 |
// depth - pre-checked as non-negative |
|
2136 |
jvmtiError |
|
2137 |
JvmtiEnv::SetLocalObject(JavaThread* java_thread, jint depth, jint slot, jobject value) { |
|
2138 |
// rm object is created to clean up the javaVFrame created in |
|
2139 |
// doit_prologue(), but after doit() is finished with it. |
|
2140 |
ResourceMark rm; |
|
2141 |
jvalue val; |
|
2142 |
val.l = value; |
|
2143 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_OBJECT, val); |
|
2144 |
VMThread::execute(&op); |
|
2145 |
return op.result(); |
|
2146 |
} /* end SetLocalObject */ |
|
2147 |
||
2148 |
||
2149 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2150 |
// java_thread - pre-checked |
|
2151 |
// java_thread - unchecked |
|
2152 |
// depth - pre-checked as non-negative |
|
2153 |
jvmtiError |
|
2154 |
JvmtiEnv::SetLocalInt(JavaThread* java_thread, jint depth, jint slot, jint value) { |
|
2155 |
// rm object is created to clean up the javaVFrame created in |
|
2156 |
// doit_prologue(), but after doit() is finished with it. |
|
2157 |
ResourceMark rm; |
|
2158 |
jvalue val; |
|
2159 |
val.i = value; |
|
2160 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_INT, val); |
|
2161 |
VMThread::execute(&op); |
|
2162 |
return op.result(); |
|
2163 |
} /* end SetLocalInt */ |
|
2164 |
||
2165 |
||
2166 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2167 |
// java_thread - pre-checked |
|
2168 |
// java_thread - unchecked |
|
2169 |
// depth - pre-checked as non-negative |
|
2170 |
jvmtiError |
|
2171 |
JvmtiEnv::SetLocalLong(JavaThread* java_thread, jint depth, jint slot, jlong value) { |
|
2172 |
// rm object is created to clean up the javaVFrame created in |
|
2173 |
// doit_prologue(), but after doit() is finished with it. |
|
2174 |
ResourceMark rm; |
|
2175 |
jvalue val; |
|
2176 |
val.j = value; |
|
2177 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_LONG, val); |
|
2178 |
VMThread::execute(&op); |
|
2179 |
return op.result(); |
|
2180 |
} /* end SetLocalLong */ |
|
2181 |
||
2182 |
||
2183 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2184 |
// java_thread - pre-checked |
|
2185 |
// java_thread - unchecked |
|
2186 |
// depth - pre-checked as non-negative |
|
2187 |
jvmtiError |
|
2188 |
JvmtiEnv::SetLocalFloat(JavaThread* java_thread, jint depth, jint slot, jfloat value) { |
|
2189 |
// rm object is created to clean up the javaVFrame created in |
|
2190 |
// doit_prologue(), but after doit() is finished with it. |
|
2191 |
ResourceMark rm; |
|
2192 |
jvalue val; |
|
2193 |
val.f = value; |
|
2194 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_FLOAT, val); |
|
2195 |
VMThread::execute(&op); |
|
2196 |
return op.result(); |
|
2197 |
} /* end SetLocalFloat */ |
|
2198 |
||
2199 |
||
2200 |
// Threads_lock NOT held, java_thread not protected by lock |
|
2201 |
// java_thread - pre-checked |
|
2202 |
// java_thread - unchecked |
|
2203 |
// depth - pre-checked as non-negative |
|
2204 |
jvmtiError |
|
2205 |
JvmtiEnv::SetLocalDouble(JavaThread* java_thread, jint depth, jint slot, jdouble value) { |
|
2206 |
// rm object is created to clean up the javaVFrame created in |
|
2207 |
// doit_prologue(), but after doit() is finished with it. |
|
2208 |
ResourceMark rm; |
|
2209 |
jvalue val; |
|
2210 |
val.d = value; |
|
2211 |
VM_GetOrSetLocal op(java_thread, depth, slot, T_DOUBLE, val); |
|
2212 |
VMThread::execute(&op); |
|
2213 |
return op.result(); |
|
2214 |
} /* end SetLocalDouble */ |
|
2215 |
||
2216 |
||
2217 |
// |
|
2218 |
// Breakpoint functions |
|
2219 |
// |
|
2220 |
||
2221 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
2222 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2223 |
JvmtiEnv::SetBreakpoint(Method* method_oop, jlocation location) { |
1 | 2224 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
2225 |
if (location < 0) { // simple invalid location check first |
|
2226 |
return JVMTI_ERROR_INVALID_LOCATION; |
|
2227 |
} |
|
2228 |
// verify that the breakpoint is not past the end of the method |
|
2229 |
if (location >= (jlocation) method_oop->code_size()) { |
|
2230 |
return JVMTI_ERROR_INVALID_LOCATION; |
|
2231 |
} |
|
2232 |
||
2233 |
ResourceMark rm; |
|
2234 |
JvmtiBreakpoint bp(method_oop, location); |
|
2235 |
JvmtiBreakpoints& jvmti_breakpoints = JvmtiCurrentBreakpoints::get_jvmti_breakpoints(); |
|
2236 |
if (jvmti_breakpoints.set(bp) == JVMTI_ERROR_DUPLICATE) |
|
2237 |
return JVMTI_ERROR_DUPLICATE; |
|
2238 |
||
2239 |
if (TraceJVMTICalls) { |
|
2240 |
jvmti_breakpoints.print(); |
|
2241 |
} |
|
2242 |
||
2243 |
return JVMTI_ERROR_NONE; |
|
2244 |
} /* end SetBreakpoint */ |
|
2245 |
||
2246 |
||
2247 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
2248 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2249 |
JvmtiEnv::ClearBreakpoint(Method* method_oop, jlocation location) { |
1 | 2250 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
2251 |
||
2252 |
if (location < 0) { // simple invalid location check first |
|
2253 |
return JVMTI_ERROR_INVALID_LOCATION; |
|
2254 |
} |
|
2255 |
||
2256 |
// verify that the breakpoint is not past the end of the method |
|
2257 |
if (location >= (jlocation) method_oop->code_size()) { |
|
2258 |
return JVMTI_ERROR_INVALID_LOCATION; |
|
2259 |
} |
|
2260 |
||
2261 |
JvmtiBreakpoint bp(method_oop, location); |
|
2262 |
||
2263 |
JvmtiBreakpoints& jvmti_breakpoints = JvmtiCurrentBreakpoints::get_jvmti_breakpoints(); |
|
2264 |
if (jvmti_breakpoints.clear(bp) == JVMTI_ERROR_NOT_FOUND) |
|
2265 |
return JVMTI_ERROR_NOT_FOUND; |
|
2266 |
||
2267 |
if (TraceJVMTICalls) { |
|
2268 |
jvmti_breakpoints.print(); |
|
2269 |
} |
|
2270 |
||
2271 |
return JVMTI_ERROR_NONE; |
|
2272 |
} /* end ClearBreakpoint */ |
|
2273 |
||
2274 |
||
2275 |
// |
|
2276 |
// Watched Field functions |
|
2277 |
// |
|
2278 |
||
2279 |
jvmtiError |
|
2280 |
JvmtiEnv::SetFieldAccessWatch(fieldDescriptor* fdesc_ptr) { |
|
2281 |
// make sure we haven't set this watch before |
|
2282 |
if (fdesc_ptr->is_field_access_watched()) return JVMTI_ERROR_DUPLICATE; |
|
2283 |
fdesc_ptr->set_is_field_access_watched(true); |
|
2284 |
||
2285 |
JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_ACCESS, true); |
|
2286 |
||
2287 |
return JVMTI_ERROR_NONE; |
|
2288 |
} /* end SetFieldAccessWatch */ |
|
2289 |
||
2290 |
||
2291 |
jvmtiError |
|
2292 |
JvmtiEnv::ClearFieldAccessWatch(fieldDescriptor* fdesc_ptr) { |
|
2293 |
// make sure we have a watch to clear |
|
2294 |
if (!fdesc_ptr->is_field_access_watched()) return JVMTI_ERROR_NOT_FOUND; |
|
2295 |
fdesc_ptr->set_is_field_access_watched(false); |
|
2296 |
||
2297 |
JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_ACCESS, false); |
|
2298 |
||
2299 |
return JVMTI_ERROR_NONE; |
|
2300 |
} /* end ClearFieldAccessWatch */ |
|
2301 |
||
2302 |
||
2303 |
jvmtiError |
|
2304 |
JvmtiEnv::SetFieldModificationWatch(fieldDescriptor* fdesc_ptr) { |
|
2305 |
// make sure we haven't set this watch before |
|
2306 |
if (fdesc_ptr->is_field_modification_watched()) return JVMTI_ERROR_DUPLICATE; |
|
2307 |
fdesc_ptr->set_is_field_modification_watched(true); |
|
2308 |
||
2309 |
JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_MODIFICATION, true); |
|
2310 |
||
2311 |
return JVMTI_ERROR_NONE; |
|
2312 |
} /* end SetFieldModificationWatch */ |
|
2313 |
||
2314 |
||
2315 |
jvmtiError |
|
2316 |
JvmtiEnv::ClearFieldModificationWatch(fieldDescriptor* fdesc_ptr) { |
|
2317 |
// make sure we have a watch to clear |
|
2318 |
if (!fdesc_ptr->is_field_modification_watched()) return JVMTI_ERROR_NOT_FOUND; |
|
2319 |
fdesc_ptr->set_is_field_modification_watched(false); |
|
2320 |
||
2321 |
JvmtiEventController::change_field_watch(JVMTI_EVENT_FIELD_MODIFICATION, false); |
|
2322 |
||
2323 |
return JVMTI_ERROR_NONE; |
|
2324 |
} /* end ClearFieldModificationWatch */ |
|
2325 |
||
2326 |
// |
|
2327 |
// Class functions |
|
2328 |
// |
|
2329 |
||
2330 |
||
2331 |
// k_mirror - may be primitive, this must be checked |
|
2332 |
// signature_ptr - NULL is a valid value, must be checked |
|
2333 |
// generic_ptr - NULL is a valid value, must be checked |
|
2334 |
jvmtiError |
|
2335 |
JvmtiEnv::GetClassSignature(oop k_mirror, char** signature_ptr, char** generic_ptr) { |
|
2336 |
ResourceMark rm; |
|
2337 |
bool isPrimitive = java_lang_Class::is_primitive(k_mirror); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2338 |
Klass* k = NULL; |
1 | 2339 |
if (!isPrimitive) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2340 |
k = java_lang_Class::as_Klass(k_mirror); |
1 | 2341 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); |
2342 |
} |
|
2343 |
if (signature_ptr != NULL) { |
|
2344 |
char* result = NULL; |
|
2345 |
if (isPrimitive) { |
|
2346 |
char tchar = type2char(java_lang_Class::primitive_type(k_mirror)); |
|
2347 |
result = (char*) jvmtiMalloc(2); |
|
2348 |
result[0] = tchar; |
|
2349 |
result[1] = '\0'; |
|
2350 |
} else { |
|
14488 | 2351 |
const char* class_sig = k->signature_name(); |
1 | 2352 |
result = (char *) jvmtiMalloc(strlen(class_sig)+1); |
2353 |
strcpy(result, class_sig); |
|
2354 |
} |
|
2355 |
*signature_ptr = result; |
|
2356 |
} |
|
2357 |
if (generic_ptr != NULL) { |
|
2358 |
*generic_ptr = NULL; |
|
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33589
diff
changeset
|
2359 |
if (!isPrimitive && k->is_instance_klass()) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2360 |
Symbol* soo = InstanceKlass::cast(k)->generic_signature(); |
1 | 2361 |
if (soo != NULL) { |
2362 |
const char *gen_sig = soo->as_C_string(); |
|
2363 |
if (gen_sig != NULL) { |
|
2364 |
char* gen_result; |
|
2365 |
jvmtiError err = allocate(strlen(gen_sig) + 1, |
|
2366 |
(unsigned char **)&gen_result); |
|
2367 |
if (err != JVMTI_ERROR_NONE) { |
|
2368 |
return err; |
|
2369 |
} |
|
2370 |
strcpy(gen_result, gen_sig); |
|
2371 |
*generic_ptr = gen_result; |
|
2372 |
} |
|
2373 |
} |
|
2374 |
} |
|
2375 |
} |
|
2376 |
return JVMTI_ERROR_NONE; |
|
2377 |
} /* end GetClassSignature */ |
|
2378 |
||
2379 |
||
2380 |
// k_mirror - may be primitive, this must be checked |
|
2381 |
// status_ptr - pre-checked for NULL |
|
2382 |
jvmtiError |
|
2383 |
JvmtiEnv::GetClassStatus(oop k_mirror, jint* status_ptr) { |
|
2384 |
jint result = 0; |
|
2385 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
2386 |
result |= JVMTI_CLASS_STATUS_PRIMITIVE; |
|
2387 |
} else { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2388 |
Klass* k = java_lang_Class::as_Klass(k_mirror); |
1 | 2389 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); |
14488 | 2390 |
result = k->jvmti_class_status(); |
1 | 2391 |
} |
2392 |
*status_ptr = result; |
|
2393 |
||
2394 |
return JVMTI_ERROR_NONE; |
|
2395 |
} /* end GetClassStatus */ |
|
2396 |
||
2397 |
||
2398 |
// k_mirror - may be primitive, this must be checked |
|
2399 |
// source_name_ptr - pre-checked for NULL |
|
2400 |
jvmtiError |
|
2401 |
JvmtiEnv::GetSourceFileName(oop k_mirror, char** source_name_ptr) { |
|
2402 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
2403 |
return JVMTI_ERROR_ABSENT_INFORMATION; |
|
2404 |
} |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2405 |
Klass* k_klass = java_lang_Class::as_Klass(k_mirror); |
1 | 2406 |
NULL_CHECK(k_klass, JVMTI_ERROR_INVALID_CLASS); |
2407 |
||
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33589
diff
changeset
|
2408 |
if (!k_klass->is_instance_klass()) { |
1 | 2409 |
return JVMTI_ERROR_ABSENT_INFORMATION; |
2410 |
} |
|
2411 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2412 |
Symbol* sfnOop = InstanceKlass::cast(k_klass)->source_file_name(); |
1 | 2413 |
NULL_CHECK(sfnOop, JVMTI_ERROR_ABSENT_INFORMATION); |
2414 |
{ |
|
2415 |
JavaThread* current_thread = JavaThread::current(); |
|
2416 |
ResourceMark rm(current_thread); |
|
2417 |
const char* sfncp = (const char*) sfnOop->as_C_string(); |
|
2418 |
*source_name_ptr = (char *) jvmtiMalloc(strlen(sfncp)+1); |
|
2419 |
strcpy(*source_name_ptr, sfncp); |
|
2420 |
} |
|
2421 |
||
2422 |
return JVMTI_ERROR_NONE; |
|
2423 |
} /* end GetSourceFileName */ |
|
2424 |
||
2425 |
||
2426 |
// k_mirror - may be primitive, this must be checked |
|
2427 |
// modifiers_ptr - pre-checked for NULL |
|
2428 |
jvmtiError |
|
2429 |
JvmtiEnv::GetClassModifiers(oop k_mirror, jint* modifiers_ptr) { |
|
2430 |
JavaThread* current_thread = JavaThread::current(); |
|
2431 |
jint result = 0; |
|
2432 |
if (!java_lang_Class::is_primitive(k_mirror)) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2433 |
Klass* k = java_lang_Class::as_Klass(k_mirror); |
1 | 2434 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); |
14488 | 2435 |
result = k->compute_modifier_flags(current_thread); |
1 | 2436 |
JavaThread* THREAD = current_thread; // pass to macros |
2437 |
if (HAS_PENDING_EXCEPTION) { |
|
2438 |
CLEAR_PENDING_EXCEPTION; |
|
2439 |
return JVMTI_ERROR_INTERNAL; |
|
2440 |
}; |
|
2441 |
||
2442 |
// Reset the deleted ACC_SUPER bit ( deleted in compute_modifier_flags()). |
|
14488 | 2443 |
if(k->is_super()) { |
1 | 2444 |
result |= JVM_ACC_SUPER; |
2445 |
} |
|
2446 |
} else { |
|
2447 |
result = (JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC); |
|
2448 |
} |
|
2449 |
*modifiers_ptr = result; |
|
2450 |
||
2451 |
return JVMTI_ERROR_NONE; |
|
2452 |
} /* end GetClassModifiers */ |
|
2453 |
||
2454 |
||
2455 |
// k_mirror - may be primitive, this must be checked |
|
2456 |
// method_count_ptr - pre-checked for NULL |
|
2457 |
// methods_ptr - pre-checked for NULL |
|
2458 |
jvmtiError |
|
2459 |
JvmtiEnv::GetClassMethods(oop k_mirror, jint* method_count_ptr, jmethodID** methods_ptr) { |
|
2460 |
JavaThread* current_thread = JavaThread::current(); |
|
2461 |
HandleMark hm(current_thread); |
|
2462 |
||
2463 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
2464 |
*method_count_ptr = 0; |
|
2465 |
*methods_ptr = (jmethodID*) jvmtiMalloc(0 * sizeof(jmethodID)); |
|
2466 |
return JVMTI_ERROR_NONE; |
|
2467 |
} |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2468 |
Klass* k = java_lang_Class::as_Klass(k_mirror); |
1 | 2469 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); |
2470 |
||
2471 |
// Return CLASS_NOT_PREPARED error as per JVMTI spec. |
|
14488 | 2472 |
if (!(k->jvmti_class_status() & (JVMTI_CLASS_STATUS_PREPARED|JVMTI_CLASS_STATUS_ARRAY) )) { |
1 | 2473 |
return JVMTI_ERROR_CLASS_NOT_PREPARED; |
2474 |
} |
|
2475 |
||
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33589
diff
changeset
|
2476 |
if (!k->is_instance_klass()) { |
1 | 2477 |
*method_count_ptr = 0; |
2478 |
*methods_ptr = (jmethodID*) jvmtiMalloc(0 * sizeof(jmethodID)); |
|
2479 |
return JVMTI_ERROR_NONE; |
|
2480 |
} |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2481 |
InstanceKlass* ik = InstanceKlass::cast(k); |
1 | 2482 |
// Allocate the result and fill it in |
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2483 |
int result_length = ik->methods()->length(); |
1 | 2484 |
jmethodID* result_list = (jmethodID*)jvmtiMalloc(result_length * sizeof(jmethodID)); |
2485 |
int index; |
|
27478 | 2486 |
bool jmethodids_found = true; |
2487 |
||
1 | 2488 |
if (JvmtiExport::can_maintain_original_method_order()) { |
2489 |
// Use the original method ordering indices stored in the class, so we can emit |
|
2490 |
// jmethodIDs in the order they appeared in the class file |
|
2491 |
for (index = 0; index < result_length; index++) { |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2492 |
Method* m = ik->methods()->at(index); |
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2493 |
int original_index = ik->method_ordering()->at(index); |
1 | 2494 |
assert(original_index >= 0 && original_index < result_length, "invalid original method index"); |
27478 | 2495 |
jmethodID id; |
2496 |
if (jmethodids_found) { |
|
2497 |
id = m->find_jmethod_id_or_null(); |
|
2498 |
if (id == NULL) { |
|
2499 |
// If we find an uninitialized value, make sure there is |
|
2500 |
// enough space for all the uninitialized values we might |
|
2501 |
// find. |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2502 |
ik->ensure_space_for_methodids(index); |
27478 | 2503 |
jmethodids_found = false; |
2504 |
id = m->jmethod_id(); |
|
2505 |
} |
|
2506 |
} else { |
|
2507 |
id = m->jmethod_id(); |
|
2508 |
} |
|
1 | 2509 |
result_list[original_index] = id; |
2510 |
} |
|
2511 |
} else { |
|
2512 |
// otherwise just copy in any order |
|
2513 |
for (index = 0; index < result_length; index++) { |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2514 |
Method* m = ik->methods()->at(index); |
27478 | 2515 |
jmethodID id; |
2516 |
if (jmethodids_found) { |
|
2517 |
id = m->find_jmethod_id_or_null(); |
|
2518 |
if (id == NULL) { |
|
2519 |
// If we find an uninitialized value, make sure there is |
|
2520 |
// enough space for all the uninitialized values we might |
|
2521 |
// find. |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2522 |
ik->ensure_space_for_methodids(index); |
27478 | 2523 |
jmethodids_found = false; |
2524 |
id = m->jmethod_id(); |
|
2525 |
} |
|
2526 |
} else { |
|
2527 |
id = m->jmethod_id(); |
|
2528 |
} |
|
1 | 2529 |
result_list[index] = id; |
2530 |
} |
|
2531 |
} |
|
2532 |
// Fill in return value. |
|
2533 |
*method_count_ptr = result_length; |
|
2534 |
*methods_ptr = result_list; |
|
2535 |
||
2536 |
return JVMTI_ERROR_NONE; |
|
2537 |
} /* end GetClassMethods */ |
|
2538 |
||
2539 |
||
2540 |
// k_mirror - may be primitive, this must be checked |
|
2541 |
// field_count_ptr - pre-checked for NULL |
|
2542 |
// fields_ptr - pre-checked for NULL |
|
2543 |
jvmtiError |
|
2544 |
JvmtiEnv::GetClassFields(oop k_mirror, jint* field_count_ptr, jfieldID** fields_ptr) { |
|
2545 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
2546 |
*field_count_ptr = 0; |
|
2547 |
*fields_ptr = (jfieldID*) jvmtiMalloc(0 * sizeof(jfieldID)); |
|
2548 |
return JVMTI_ERROR_NONE; |
|
2549 |
} |
|
2550 |
JavaThread* current_thread = JavaThread::current(); |
|
2551 |
HandleMark hm(current_thread); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2552 |
Klass* k = java_lang_Class::as_Klass(k_mirror); |
1 | 2553 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); |
2554 |
||
2555 |
// Return CLASS_NOT_PREPARED error as per JVMTI spec. |
|
14488 | 2556 |
if (!(k->jvmti_class_status() & (JVMTI_CLASS_STATUS_PREPARED|JVMTI_CLASS_STATUS_ARRAY) )) { |
1 | 2557 |
return JVMTI_ERROR_CLASS_NOT_PREPARED; |
2558 |
} |
|
2559 |
||
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33589
diff
changeset
|
2560 |
if (!k->is_instance_klass()) { |
1 | 2561 |
*field_count_ptr = 0; |
2562 |
*fields_ptr = (jfieldID*) jvmtiMalloc(0 * sizeof(jfieldID)); |
|
2563 |
return JVMTI_ERROR_NONE; |
|
2564 |
} |
|
2565 |
||
2566 |
||
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2567 |
InstanceKlass* ik = InstanceKlass::cast(k); |
1 | 2568 |
|
2569 |
int result_count = 0; |
|
2570 |
// First, count the fields. |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2571 |
FilteredFieldStream flds(ik, true, true); |
1 | 2572 |
result_count = flds.field_count(); |
2573 |
||
2574 |
// Allocate the result and fill it in |
|
2575 |
jfieldID* result_list = (jfieldID*) jvmtiMalloc(result_count * sizeof(jfieldID)); |
|
2576 |
// The JVMTI spec requires fields in the order they occur in the class file, |
|
2577 |
// this is the reverse order of what FieldStream hands out. |
|
2578 |
int id_index = (result_count - 1); |
|
2579 |
||
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2580 |
for (FilteredFieldStream src_st(ik, true, true); !src_st.eos(); src_st.next()) { |
1 | 2581 |
result_list[id_index--] = jfieldIDWorkaround::to_jfieldID( |
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2582 |
ik, src_st.offset(), |
1 | 2583 |
src_st.access_flags().is_static()); |
2584 |
} |
|
2585 |
assert(id_index == -1, "just checking"); |
|
2586 |
// Fill in the results |
|
2587 |
*field_count_ptr = result_count; |
|
2588 |
*fields_ptr = result_list; |
|
2589 |
||
2590 |
return JVMTI_ERROR_NONE; |
|
2591 |
} /* end GetClassFields */ |
|
2592 |
||
2593 |
||
2594 |
// k_mirror - may be primitive, this must be checked |
|
2595 |
// interface_count_ptr - pre-checked for NULL |
|
2596 |
// interfaces_ptr - pre-checked for NULL |
|
2597 |
jvmtiError |
|
2598 |
JvmtiEnv::GetImplementedInterfaces(oop k_mirror, jint* interface_count_ptr, jclass** interfaces_ptr) { |
|
2599 |
{ |
|
2600 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
2601 |
*interface_count_ptr = 0; |
|
2602 |
*interfaces_ptr = (jclass*) jvmtiMalloc(0 * sizeof(jclass)); |
|
2603 |
return JVMTI_ERROR_NONE; |
|
2604 |
} |
|
2605 |
JavaThread* current_thread = JavaThread::current(); |
|
2606 |
HandleMark hm(current_thread); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2607 |
Klass* k = java_lang_Class::as_Klass(k_mirror); |
1 | 2608 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); |
2609 |
||
2610 |
// Return CLASS_NOT_PREPARED error as per JVMTI spec. |
|
14488 | 2611 |
if (!(k->jvmti_class_status() & (JVMTI_CLASS_STATUS_PREPARED|JVMTI_CLASS_STATUS_ARRAY) )) |
1 | 2612 |
return JVMTI_ERROR_CLASS_NOT_PREPARED; |
2613 |
||
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33589
diff
changeset
|
2614 |
if (!k->is_instance_klass()) { |
1 | 2615 |
*interface_count_ptr = 0; |
2616 |
*interfaces_ptr = (jclass*) jvmtiMalloc(0 * sizeof(jclass)); |
|
2617 |
return JVMTI_ERROR_NONE; |
|
2618 |
} |
|
2619 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2620 |
Array<Klass*>* interface_list = InstanceKlass::cast(k)->local_interfaces(); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2621 |
const int result_length = (interface_list == NULL ? 0 : interface_list->length()); |
1 | 2622 |
jclass* result_list = (jclass*) jvmtiMalloc(result_length * sizeof(jclass)); |
2623 |
for (int i_index = 0; i_index < result_length; i_index += 1) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2624 |
Klass* klass_at = interface_list->at(i_index); |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2625 |
assert(klass_at->is_klass(), "interfaces must be Klass*s"); |
14488 | 2626 |
assert(klass_at->is_interface(), "interfaces must be interfaces"); |
2627 |
oop mirror_at = klass_at->java_mirror(); |
|
1 | 2628 |
Handle handle_at = Handle(current_thread, mirror_at); |
2629 |
result_list[i_index] = (jclass) jni_reference(handle_at); |
|
2630 |
} |
|
2631 |
*interface_count_ptr = result_length; |
|
2632 |
*interfaces_ptr = result_list; |
|
2633 |
} |
|
2634 |
||
2635 |
return JVMTI_ERROR_NONE; |
|
2636 |
} /* end GetImplementedInterfaces */ |
|
2637 |
||
2638 |
||
2639 |
// k_mirror - may be primitive, this must be checked |
|
2640 |
// minor_version_ptr - pre-checked for NULL |
|
2641 |
// major_version_ptr - pre-checked for NULL |
|
2642 |
jvmtiError |
|
2643 |
JvmtiEnv::GetClassVersionNumbers(oop k_mirror, jint* minor_version_ptr, jint* major_version_ptr) { |
|
2644 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
2645 |
return JVMTI_ERROR_ABSENT_INFORMATION; |
|
2646 |
} |
|
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2647 |
Klass* klass = java_lang_Class::as_Klass(k_mirror); |
1 | 2648 |
|
2649 |
jint status = klass->jvmti_class_status(); |
|
2650 |
if (status & (JVMTI_CLASS_STATUS_ERROR)) { |
|
2651 |
return JVMTI_ERROR_INVALID_CLASS; |
|
2652 |
} |
|
2653 |
if (status & (JVMTI_CLASS_STATUS_ARRAY)) { |
|
2654 |
return JVMTI_ERROR_ABSENT_INFORMATION; |
|
2655 |
} |
|
2656 |
||
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2657 |
InstanceKlass* ik = InstanceKlass::cast(klass); |
1 | 2658 |
*minor_version_ptr = ik->minor_version(); |
2659 |
*major_version_ptr = ik->major_version(); |
|
2660 |
||
2661 |
return JVMTI_ERROR_NONE; |
|
2662 |
} /* end GetClassVersionNumbers */ |
|
2663 |
||
2664 |
||
2665 |
// k_mirror - may be primitive, this must be checked |
|
2666 |
// constant_pool_count_ptr - pre-checked for NULL |
|
2667 |
// constant_pool_byte_count_ptr - pre-checked for NULL |
|
2668 |
// constant_pool_bytes_ptr - pre-checked for NULL |
|
2669 |
jvmtiError |
|
2670 |
JvmtiEnv::GetConstantPool(oop k_mirror, jint* constant_pool_count_ptr, jint* constant_pool_byte_count_ptr, unsigned char** constant_pool_bytes_ptr) { |
|
2671 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
2672 |
return JVMTI_ERROR_ABSENT_INFORMATION; |
|
2673 |
} |
|
2674 |
||
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2675 |
Klass* klass = java_lang_Class::as_Klass(k_mirror); |
1 | 2676 |
Thread *thread = Thread::current(); |
2677 |
ResourceMark rm(thread); |
|
2678 |
||
2679 |
jint status = klass->jvmti_class_status(); |
|
2680 |
if (status & (JVMTI_CLASS_STATUS_ERROR)) { |
|
2681 |
return JVMTI_ERROR_INVALID_CLASS; |
|
2682 |
} |
|
2683 |
if (status & (JVMTI_CLASS_STATUS_ARRAY)) { |
|
2684 |
return JVMTI_ERROR_ABSENT_INFORMATION; |
|
2685 |
} |
|
2686 |
||
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2687 |
InstanceKlass* ik = InstanceKlass::cast(klass); |
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2688 |
JvmtiConstantPoolReconstituter reconstituter(ik); |
1 | 2689 |
if (reconstituter.get_error() != JVMTI_ERROR_NONE) { |
2690 |
return reconstituter.get_error(); |
|
2691 |
} |
|
2692 |
||
2693 |
unsigned char *cpool_bytes; |
|
2694 |
int cpool_size = reconstituter.cpool_size(); |
|
2695 |
if (reconstituter.get_error() != JVMTI_ERROR_NONE) { |
|
2696 |
return reconstituter.get_error(); |
|
2697 |
} |
|
2698 |
jvmtiError res = allocate(cpool_size, &cpool_bytes); |
|
2699 |
if (res != JVMTI_ERROR_NONE) { |
|
2700 |
return res; |
|
2701 |
} |
|
2702 |
reconstituter.copy_cpool_bytes(cpool_bytes); |
|
2703 |
if (reconstituter.get_error() != JVMTI_ERROR_NONE) { |
|
2704 |
return reconstituter.get_error(); |
|
2705 |
} |
|
2706 |
||
46329
53ccc37bda19
8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents:
43969
diff
changeset
|
2707 |
constantPoolHandle constants(thread, ik->constants()); |
1 | 2708 |
*constant_pool_count_ptr = constants->length(); |
2709 |
*constant_pool_byte_count_ptr = cpool_size; |
|
2710 |
*constant_pool_bytes_ptr = cpool_bytes; |
|
2711 |
||
2712 |
return JVMTI_ERROR_NONE; |
|
2713 |
} /* end GetConstantPool */ |
|
2714 |
||
2715 |
||
2716 |
// k_mirror - may be primitive, this must be checked |
|
2717 |
// is_interface_ptr - pre-checked for NULL |
|
2718 |
jvmtiError |
|
2719 |
JvmtiEnv::IsInterface(oop k_mirror, jboolean* is_interface_ptr) { |
|
2720 |
{ |
|
2721 |
bool result = false; |
|
2722 |
if (!java_lang_Class::is_primitive(k_mirror)) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2723 |
Klass* k = java_lang_Class::as_Klass(k_mirror); |
14488 | 2724 |
if (k != NULL && k->is_interface()) { |
1 | 2725 |
result = true; |
2726 |
} |
|
2727 |
} |
|
2728 |
*is_interface_ptr = result; |
|
2729 |
} |
|
2730 |
||
2731 |
return JVMTI_ERROR_NONE; |
|
2732 |
} /* end IsInterface */ |
|
2733 |
||
2734 |
||
2735 |
// k_mirror - may be primitive, this must be checked |
|
2736 |
// is_array_class_ptr - pre-checked for NULL |
|
2737 |
jvmtiError |
|
2738 |
JvmtiEnv::IsArrayClass(oop k_mirror, jboolean* is_array_class_ptr) { |
|
2739 |
{ |
|
2740 |
bool result = false; |
|
2741 |
if (!java_lang_Class::is_primitive(k_mirror)) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2742 |
Klass* k = java_lang_Class::as_Klass(k_mirror); |
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33589
diff
changeset
|
2743 |
if (k != NULL && k->is_array_klass()) { |
1 | 2744 |
result = true; |
2745 |
} |
|
2746 |
} |
|
2747 |
*is_array_class_ptr = result; |
|
2748 |
} |
|
2749 |
||
2750 |
return JVMTI_ERROR_NONE; |
|
2751 |
} /* end IsArrayClass */ |
|
2752 |
||
2753 |
||
2754 |
// k_mirror - may be primitive, this must be checked |
|
2755 |
// classloader_ptr - pre-checked for NULL |
|
2756 |
jvmtiError |
|
2757 |
JvmtiEnv::GetClassLoader(oop k_mirror, jobject* classloader_ptr) { |
|
2758 |
{ |
|
2759 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
2760 |
*classloader_ptr = (jclass) jni_reference(Handle()); |
|
2761 |
return JVMTI_ERROR_NONE; |
|
2762 |
} |
|
2763 |
JavaThread* current_thread = JavaThread::current(); |
|
2764 |
HandleMark hm(current_thread); |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2765 |
Klass* k = java_lang_Class::as_Klass(k_mirror); |
1 | 2766 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); |
2767 |
||
14488 | 2768 |
oop result_oop = k->class_loader(); |
1 | 2769 |
if (result_oop == NULL) { |
2770 |
*classloader_ptr = (jclass) jni_reference(Handle()); |
|
2771 |
return JVMTI_ERROR_NONE; |
|
2772 |
} |
|
2773 |
Handle result_handle = Handle(current_thread, result_oop); |
|
2774 |
jclass result_jnihandle = (jclass) jni_reference(result_handle); |
|
2775 |
*classloader_ptr = result_jnihandle; |
|
2776 |
} |
|
2777 |
return JVMTI_ERROR_NONE; |
|
2778 |
} /* end GetClassLoader */ |
|
2779 |
||
2780 |
||
2781 |
// k_mirror - may be primitive, this must be checked |
|
2782 |
// source_debug_extension_ptr - pre-checked for NULL |
|
2783 |
jvmtiError |
|
2784 |
JvmtiEnv::GetSourceDebugExtension(oop k_mirror, char** source_debug_extension_ptr) { |
|
2785 |
{ |
|
2786 |
if (java_lang_Class::is_primitive(k_mirror)) { |
|
2787 |
return JVMTI_ERROR_ABSENT_INFORMATION; |
|
2788 |
} |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2789 |
Klass* k = java_lang_Class::as_Klass(k_mirror); |
1 | 2790 |
NULL_CHECK(k, JVMTI_ERROR_INVALID_CLASS); |
33611
9abd65805e19
8139203: Consistent naming for klass type predicates
coleenp
parents:
33589
diff
changeset
|
2791 |
if (!k->is_instance_klass()) { |
1 | 2792 |
return JVMTI_ERROR_ABSENT_INFORMATION; |
2793 |
} |
|
34666 | 2794 |
const char* sde = InstanceKlass::cast(k)->source_debug_extension(); |
13201
69f157caabcc
6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents:
13195
diff
changeset
|
2795 |
NULL_CHECK(sde, JVMTI_ERROR_ABSENT_INFORMATION); |
1 | 2796 |
|
2797 |
{ |
|
13201
69f157caabcc
6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents:
13195
diff
changeset
|
2798 |
*source_debug_extension_ptr = (char *) jvmtiMalloc(strlen(sde)+1); |
69f157caabcc
6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents:
13195
diff
changeset
|
2799 |
strcpy(*source_debug_extension_ptr, sde); |
1 | 2800 |
} |
2801 |
} |
|
2802 |
||
2803 |
return JVMTI_ERROR_NONE; |
|
2804 |
} /* end GetSourceDebugExtension */ |
|
2805 |
||
2806 |
// |
|
2807 |
// Object functions |
|
2808 |
// |
|
2809 |
||
2810 |
// hash_code_ptr - pre-checked for NULL |
|
2811 |
jvmtiError |
|
2812 |
JvmtiEnv::GetObjectHashCode(jobject object, jint* hash_code_ptr) { |
|
2813 |
oop mirror = JNIHandles::resolve_external_guard(object); |
|
2814 |
NULL_CHECK(mirror, JVMTI_ERROR_INVALID_OBJECT); |
|
2815 |
NULL_CHECK(hash_code_ptr, JVMTI_ERROR_NULL_POINTER); |
|
2816 |
||
2817 |
{ |
|
2818 |
jint result = (jint) mirror->identity_hash(); |
|
2819 |
*hash_code_ptr = result; |
|
2820 |
} |
|
2821 |
return JVMTI_ERROR_NONE; |
|
2822 |
} /* end GetObjectHashCode */ |
|
2823 |
||
2824 |
||
2825 |
// info_ptr - pre-checked for NULL |
|
2826 |
jvmtiError |
|
2827 |
JvmtiEnv::GetObjectMonitorUsage(jobject object, jvmtiMonitorUsage* info_ptr) { |
|
2828 |
JavaThread* calling_thread = JavaThread::current(); |
|
2829 |
jvmtiError err = get_object_monitor_usage(calling_thread, object, info_ptr); |
|
2830 |
if (err == JVMTI_ERROR_THREAD_NOT_SUSPENDED) { |
|
2831 |
// Some of the critical threads were not suspended. go to a safepoint and try again |
|
2832 |
VM_GetObjectMonitorUsage op(this, calling_thread, object, info_ptr); |
|
2833 |
VMThread::execute(&op); |
|
2834 |
err = op.result(); |
|
2835 |
} |
|
2836 |
return err; |
|
2837 |
} /* end GetObjectMonitorUsage */ |
|
2838 |
||
2839 |
||
2840 |
// |
|
2841 |
// Field functions |
|
2842 |
// |
|
2843 |
||
2844 |
// name_ptr - NULL is a valid value, must be checked |
|
2845 |
// signature_ptr - NULL is a valid value, must be checked |
|
2846 |
// generic_ptr - NULL is a valid value, must be checked |
|
2847 |
jvmtiError |
|
2848 |
JvmtiEnv::GetFieldName(fieldDescriptor* fdesc_ptr, char** name_ptr, char** signature_ptr, char** generic_ptr) { |
|
2849 |
JavaThread* current_thread = JavaThread::current(); |
|
2850 |
ResourceMark rm(current_thread); |
|
2851 |
if (name_ptr == NULL) { |
|
2852 |
// just don't return the name |
|
2853 |
} else { |
|
2854 |
const char* fieldName = fdesc_ptr->name()->as_C_string(); |
|
2855 |
*name_ptr = (char*) jvmtiMalloc(strlen(fieldName) + 1); |
|
2856 |
if (*name_ptr == NULL) |
|
2857 |
return JVMTI_ERROR_OUT_OF_MEMORY; |
|
2858 |
strcpy(*name_ptr, fieldName); |
|
2859 |
} |
|
2860 |
if (signature_ptr== NULL) { |
|
2861 |
// just don't return the signature |
|
2862 |
} else { |
|
2863 |
const char* fieldSignature = fdesc_ptr->signature()->as_C_string(); |
|
2864 |
*signature_ptr = (char*) jvmtiMalloc(strlen(fieldSignature) + 1); |
|
2865 |
if (*signature_ptr == NULL) |
|
2866 |
return JVMTI_ERROR_OUT_OF_MEMORY; |
|
2867 |
strcpy(*signature_ptr, fieldSignature); |
|
2868 |
} |
|
2869 |
if (generic_ptr != NULL) { |
|
2870 |
*generic_ptr = NULL; |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7724
diff
changeset
|
2871 |
Symbol* soop = fdesc_ptr->generic_signature(); |
1 | 2872 |
if (soop != NULL) { |
2873 |
const char* gen_sig = soop->as_C_string(); |
|
2874 |
if (gen_sig != NULL) { |
|
2875 |
jvmtiError err = allocate(strlen(gen_sig) + 1, (unsigned char **)generic_ptr); |
|
2876 |
if (err != JVMTI_ERROR_NONE) { |
|
2877 |
return err; |
|
2878 |
} |
|
2879 |
strcpy(*generic_ptr, gen_sig); |
|
2880 |
} |
|
2881 |
} |
|
2882 |
} |
|
2883 |
return JVMTI_ERROR_NONE; |
|
2884 |
} /* end GetFieldName */ |
|
2885 |
||
2886 |
||
2887 |
// declaring_class_ptr - pre-checked for NULL |
|
2888 |
jvmtiError |
|
2889 |
JvmtiEnv::GetFieldDeclaringClass(fieldDescriptor* fdesc_ptr, jclass* declaring_class_ptr) { |
|
2890 |
||
2891 |
*declaring_class_ptr = get_jni_class_non_null(fdesc_ptr->field_holder()); |
|
2892 |
return JVMTI_ERROR_NONE; |
|
2893 |
} /* end GetFieldDeclaringClass */ |
|
2894 |
||
2895 |
||
2896 |
// modifiers_ptr - pre-checked for NULL |
|
2897 |
jvmtiError |
|
2898 |
JvmtiEnv::GetFieldModifiers(fieldDescriptor* fdesc_ptr, jint* modifiers_ptr) { |
|
2899 |
||
2900 |
AccessFlags resultFlags = fdesc_ptr->access_flags(); |
|
2901 |
jint result = resultFlags.as_int(); |
|
2902 |
*modifiers_ptr = result; |
|
2903 |
||
2904 |
return JVMTI_ERROR_NONE; |
|
2905 |
} /* end GetFieldModifiers */ |
|
2906 |
||
2907 |
||
2908 |
// is_synthetic_ptr - pre-checked for NULL |
|
2909 |
jvmtiError |
|
2910 |
JvmtiEnv::IsFieldSynthetic(fieldDescriptor* fdesc_ptr, jboolean* is_synthetic_ptr) { |
|
2911 |
*is_synthetic_ptr = fdesc_ptr->is_synthetic(); |
|
2912 |
return JVMTI_ERROR_NONE; |
|
2913 |
} /* end IsFieldSynthetic */ |
|
2914 |
||
2915 |
||
2916 |
// |
|
2917 |
// Method functions |
|
2918 |
// |
|
2919 |
||
2920 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
2921 |
// name_ptr - NULL is a valid value, must be checked |
|
2922 |
// signature_ptr - NULL is a valid value, must be checked |
|
2923 |
// generic_ptr - NULL is a valid value, must be checked |
|
2924 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2925 |
JvmtiEnv::GetMethodName(Method* method_oop, char** name_ptr, char** signature_ptr, char** generic_ptr) { |
1 | 2926 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
2927 |
JavaThread* current_thread = JavaThread::current(); |
|
2928 |
||
2929 |
ResourceMark rm(current_thread); // get the utf8 name and signature |
|
2930 |
if (name_ptr == NULL) { |
|
2931 |
// just don't return the name |
|
2932 |
} else { |
|
2933 |
const char* utf8_name = (const char *) method_oop->name()->as_utf8(); |
|
2934 |
*name_ptr = (char *) jvmtiMalloc(strlen(utf8_name)+1); |
|
2935 |
strcpy(*name_ptr, utf8_name); |
|
2936 |
} |
|
2937 |
if (signature_ptr == NULL) { |
|
2938 |
// just don't return the signature |
|
2939 |
} else { |
|
2940 |
const char* utf8_signature = (const char *) method_oop->signature()->as_utf8(); |
|
2941 |
*signature_ptr = (char *) jvmtiMalloc(strlen(utf8_signature) + 1); |
|
2942 |
strcpy(*signature_ptr, utf8_signature); |
|
2943 |
} |
|
2944 |
||
2945 |
if (generic_ptr != NULL) { |
|
2946 |
*generic_ptr = NULL; |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
7724
diff
changeset
|
2947 |
Symbol* soop = method_oop->generic_signature(); |
1 | 2948 |
if (soop != NULL) { |
2949 |
const char* gen_sig = soop->as_C_string(); |
|
2950 |
if (gen_sig != NULL) { |
|
2951 |
jvmtiError err = allocate(strlen(gen_sig) + 1, (unsigned char **)generic_ptr); |
|
2952 |
if (err != JVMTI_ERROR_NONE) { |
|
2953 |
return err; |
|
2954 |
} |
|
2955 |
strcpy(*generic_ptr, gen_sig); |
|
2956 |
} |
|
2957 |
} |
|
2958 |
} |
|
2959 |
return JVMTI_ERROR_NONE; |
|
2960 |
} /* end GetMethodName */ |
|
2961 |
||
2962 |
||
2963 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
2964 |
// declaring_class_ptr - pre-checked for NULL |
|
2965 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2966 |
JvmtiEnv::GetMethodDeclaringClass(Method* method_oop, jclass* declaring_class_ptr) { |
1 | 2967 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
2968 |
(*declaring_class_ptr) = get_jni_class_non_null(method_oop->method_holder()); |
|
2969 |
return JVMTI_ERROR_NONE; |
|
2970 |
} /* end GetMethodDeclaringClass */ |
|
2971 |
||
2972 |
||
2973 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
2974 |
// modifiers_ptr - pre-checked for NULL |
|
2975 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2976 |
JvmtiEnv::GetMethodModifiers(Method* method_oop, jint* modifiers_ptr) { |
1 | 2977 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
2978 |
(*modifiers_ptr) = method_oop->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; |
|
2979 |
return JVMTI_ERROR_NONE; |
|
2980 |
} /* end GetMethodModifiers */ |
|
2981 |
||
2982 |
||
2983 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
2984 |
// max_ptr - pre-checked for NULL |
|
2985 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2986 |
JvmtiEnv::GetMaxLocals(Method* method_oop, jint* max_ptr) { |
1 | 2987 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
2988 |
// get max stack |
|
2989 |
(*max_ptr) = method_oop->max_locals(); |
|
2990 |
return JVMTI_ERROR_NONE; |
|
2991 |
} /* end GetMaxLocals */ |
|
2992 |
||
2993 |
||
2994 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
2995 |
// size_ptr - pre-checked for NULL |
|
2996 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
2997 |
JvmtiEnv::GetArgumentsSize(Method* method_oop, jint* size_ptr) { |
1 | 2998 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
2999 |
// get size of arguments |
|
3000 |
||
3001 |
(*size_ptr) = method_oop->size_of_parameters(); |
|
3002 |
return JVMTI_ERROR_NONE; |
|
3003 |
} /* end GetArgumentsSize */ |
|
3004 |
||
3005 |
||
3006 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
3007 |
// entry_count_ptr - pre-checked for NULL |
|
3008 |
// table_ptr - pre-checked for NULL |
|
3009 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
3010 |
JvmtiEnv::GetLineNumberTable(Method* method_oop, jint* entry_count_ptr, jvmtiLineNumberEntry** table_ptr) { |
1 | 3011 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
3012 |
if (!method_oop->has_linenumber_table()) { |
|
3013 |
return (JVMTI_ERROR_ABSENT_INFORMATION); |
|
3014 |
} |
|
3015 |
||
3016 |
// The line number table is compressed so we don't know how big it is until decompressed. |
|
3017 |
// Decompression is really fast so we just do it twice. |
|
3018 |
||
3019 |
// Compute size of table |
|
3020 |
jint num_entries = 0; |
|
3021 |
CompressedLineNumberReadStream stream(method_oop->compressed_linenumber_table()); |
|
3022 |
while (stream.read_pair()) { |
|
3023 |
num_entries++; |
|
3024 |
} |
|
3025 |
jvmtiLineNumberEntry *jvmti_table = |
|
3026 |
(jvmtiLineNumberEntry *)jvmtiMalloc(num_entries * (sizeof(jvmtiLineNumberEntry))); |
|
3027 |
||
3028 |
// Fill jvmti table |
|
3029 |
if (num_entries > 0) { |
|
3030 |
int index = 0; |
|
3031 |
CompressedLineNumberReadStream stream(method_oop->compressed_linenumber_table()); |
|
3032 |
while (stream.read_pair()) { |
|
3033 |
jvmti_table[index].start_location = (jlocation) stream.bci(); |
|
3034 |
jvmti_table[index].line_number = (jint) stream.line(); |
|
3035 |
index++; |
|
3036 |
} |
|
3037 |
assert(index == num_entries, "sanity check"); |
|
3038 |
} |
|
3039 |
||
3040 |
// Set up results |
|
3041 |
(*entry_count_ptr) = num_entries; |
|
3042 |
(*table_ptr) = jvmti_table; |
|
3043 |
||
3044 |
return JVMTI_ERROR_NONE; |
|
3045 |
} /* end GetLineNumberTable */ |
|
3046 |
||
3047 |
||
3048 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
3049 |
// start_location_ptr - pre-checked for NULL |
|
3050 |
// end_location_ptr - pre-checked for NULL |
|
3051 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
3052 |
JvmtiEnv::GetMethodLocation(Method* method_oop, jlocation* start_location_ptr, jlocation* end_location_ptr) { |
1 | 3053 |
|
3054 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
|
3055 |
// get start and end location |
|
3056 |
(*end_location_ptr) = (jlocation) (method_oop->code_size() - 1); |
|
3057 |
if (method_oop->code_size() == 0) { |
|
3058 |
// there is no code so there is no start location |
|
3059 |
(*start_location_ptr) = (jlocation)(-1); |
|
3060 |
} else { |
|
3061 |
(*start_location_ptr) = (jlocation)(0); |
|
3062 |
} |
|
3063 |
||
3064 |
return JVMTI_ERROR_NONE; |
|
3065 |
} /* end GetMethodLocation */ |
|
3066 |
||
3067 |
||
3068 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
3069 |
// entry_count_ptr - pre-checked for NULL |
|
3070 |
// table_ptr - pre-checked for NULL |
|
3071 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
3072 |
JvmtiEnv::GetLocalVariableTable(Method* method_oop, jint* entry_count_ptr, jvmtiLocalVariableEntry** table_ptr) { |
1 | 3073 |
|
3074 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
|
3075 |
JavaThread* current_thread = JavaThread::current(); |
|
3076 |
||
3077 |
// does the klass have any local variable information? |
|
14391
df0a1573d5bd
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents:
13728
diff
changeset
|
3078 |
InstanceKlass* ik = method_oop->method_holder(); |
1 | 3079 |
if (!ik->access_flags().has_localvariable_table()) { |
3080 |
return (JVMTI_ERROR_ABSENT_INFORMATION); |
|
3081 |
} |
|
3082 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
3083 |
ConstantPool* constants = method_oop->constants(); |
1 | 3084 |
NULL_CHECK(constants, JVMTI_ERROR_ABSENT_INFORMATION); |
3085 |
||
3086 |
// in the vm localvariable table representation, 6 consecutive elements in the table |
|
3087 |
// represent a 6-tuple of shorts |
|
3088 |
// [start_pc, length, name_index, descriptor_index, signature_index, index] |
|
3089 |
jint num_entries = method_oop->localvariable_table_length(); |
|
3090 |
jvmtiLocalVariableEntry *jvmti_table = (jvmtiLocalVariableEntry *) |
|
3091 |
jvmtiMalloc(num_entries * (sizeof(jvmtiLocalVariableEntry))); |
|
3092 |
||
3093 |
if (num_entries > 0) { |
|
3094 |
LocalVariableTableElement* table = method_oop->localvariable_table_start(); |
|
3095 |
for (int i = 0; i < num_entries; i++) { |
|
3096 |
// get the 5 tuple information from the vm table |
|
3097 |
jlocation start_location = (jlocation) table[i].start_bci; |
|
3098 |
jint length = (jint) table[i].length; |
|
3099 |
int name_index = (int) table[i].name_cp_index; |
|
3100 |
int signature_index = (int) table[i].descriptor_cp_index; |
|
3101 |
int generic_signature_index = (int) table[i].signature_cp_index; |
|
3102 |
jint slot = (jint) table[i].slot; |
|
3103 |
||
3104 |
// get utf8 name and signature |
|
3105 |
char *name_buf = NULL; |
|
3106 |
char *sig_buf = NULL; |
|
3107 |
char *gen_sig_buf = NULL; |
|
3108 |
{ |
|
3109 |
ResourceMark rm(current_thread); |
|
3110 |
||
3111 |
const char *utf8_name = (const char *) constants->symbol_at(name_index)->as_utf8(); |
|
3112 |
name_buf = (char *) jvmtiMalloc(strlen(utf8_name)+1); |
|
3113 |
strcpy(name_buf, utf8_name); |
|
3114 |
||
3115 |
const char *utf8_signature = (const char *) constants->symbol_at(signature_index)->as_utf8(); |
|
3116 |
sig_buf = (char *) jvmtiMalloc(strlen(utf8_signature)+1); |
|
3117 |
strcpy(sig_buf, utf8_signature); |
|
3118 |
||
3119 |
if (generic_signature_index > 0) { |
|
3120 |
const char *utf8_gen_sign = (const char *) |
|
3121 |
constants->symbol_at(generic_signature_index)->as_utf8(); |
|
3122 |
gen_sig_buf = (char *) jvmtiMalloc(strlen(utf8_gen_sign)+1); |
|
3123 |
strcpy(gen_sig_buf, utf8_gen_sign); |
|
3124 |
} |
|
3125 |
} |
|
3126 |
||
3127 |
// fill in the jvmti local variable table |
|
3128 |
jvmti_table[i].start_location = start_location; |
|
3129 |
jvmti_table[i].length = length; |
|
3130 |
jvmti_table[i].name = name_buf; |
|
3131 |
jvmti_table[i].signature = sig_buf; |
|
3132 |
jvmti_table[i].generic_signature = gen_sig_buf; |
|
3133 |
jvmti_table[i].slot = slot; |
|
3134 |
} |
|
3135 |
} |
|
3136 |
||
3137 |
// set results |
|
3138 |
(*entry_count_ptr) = num_entries; |
|
3139 |
(*table_ptr) = jvmti_table; |
|
3140 |
||
3141 |
return JVMTI_ERROR_NONE; |
|
3142 |
} /* end GetLocalVariableTable */ |
|
3143 |
||
3144 |
||
3145 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
3146 |
// bytecode_count_ptr - pre-checked for NULL |
|
3147 |
// bytecodes_ptr - pre-checked for NULL |
|
3148 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
3149 |
JvmtiEnv::GetBytecodes(Method* method_oop, jint* bytecode_count_ptr, unsigned char** bytecodes_ptr) { |
1 | 3150 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
3151 |
||
3152 |
HandleMark hm; |
|
3153 |
methodHandle method(method_oop); |
|
3154 |
jint size = (jint)method->code_size(); |
|
3155 |
jvmtiError err = allocate(size, bytecodes_ptr); |
|
3156 |
if (err != JVMTI_ERROR_NONE) { |
|
3157 |
return err; |
|
3158 |
} |
|
3159 |
||
3160 |
(*bytecode_count_ptr) = size; |
|
3161 |
// get byte codes |
|
3162 |
JvmtiClassFileReconstituter::copy_bytecodes(method, *bytecodes_ptr); |
|
3163 |
||
3164 |
return JVMTI_ERROR_NONE; |
|
3165 |
} /* end GetBytecodes */ |
|
3166 |
||
3167 |
||
3168 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
3169 |
// is_native_ptr - pre-checked for NULL |
|
3170 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
3171 |
JvmtiEnv::IsMethodNative(Method* method_oop, jboolean* is_native_ptr) { |
1 | 3172 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
3173 |
(*is_native_ptr) = method_oop->is_native(); |
|
3174 |
return JVMTI_ERROR_NONE; |
|
3175 |
} /* end IsMethodNative */ |
|
3176 |
||
3177 |
||
3178 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
3179 |
// is_synthetic_ptr - pre-checked for NULL |
|
3180 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
3181 |
JvmtiEnv::IsMethodSynthetic(Method* method_oop, jboolean* is_synthetic_ptr) { |
1 | 3182 |
NULL_CHECK(method_oop, JVMTI_ERROR_INVALID_METHODID); |
3183 |
(*is_synthetic_ptr) = method_oop->is_synthetic(); |
|
3184 |
return JVMTI_ERROR_NONE; |
|
3185 |
} /* end IsMethodSynthetic */ |
|
3186 |
||
3187 |
||
3188 |
// method_oop - pre-checked for validity, but may be NULL meaning obsolete method |
|
3189 |
// is_obsolete_ptr - pre-checked for NULL |
|
3190 |
jvmtiError |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13201
diff
changeset
|
3191 |
JvmtiEnv::IsMethodObsolete(Method* method_oop, jboolean* is_obsolete_ptr) { |
4491 | 3192 |
if (use_version_1_0_semantics() && |
3193 |
get_capabilities()->can_redefine_classes == 0) { |
|
3194 |
// This JvmtiEnv requested version 1.0 semantics and this function |
|
3195 |
// requires the can_redefine_classes capability in version 1.0 so |
|
3196 |
// we need to return an error here. |
|
3197 |
return JVMTI_ERROR_MUST_POSSESS_CAPABILITY; |
|
3198 |
} |
|
3199 |
||
1 | 3200 |
if (method_oop == NULL || method_oop->is_obsolete()) { |
3201 |
*is_obsolete_ptr = true; |
|
3202 |
} else { |
|
3203 |
*is_obsolete_ptr = false; |
|
3204 |
} |
|
3205 |
return JVMTI_ERROR_NONE; |
|
3206 |
} /* end IsMethodObsolete */ |
|
3207 |
||
3208 |
// |
|
3209 |
// Raw Monitor functions |
|
3210 |
// |
|
3211 |
||
3212 |
// name - pre-checked for NULL |
|
3213 |
// monitor_ptr - pre-checked for NULL |
|
3214 |
jvmtiError |
|
3215 |
JvmtiEnv::CreateRawMonitor(const char* name, jrawMonitorID* monitor_ptr) { |
|
3216 |
JvmtiRawMonitor* rmonitor = new JvmtiRawMonitor(name); |
|
3217 |
NULL_CHECK(rmonitor, JVMTI_ERROR_OUT_OF_MEMORY); |
|
3218 |
||
3219 |
*monitor_ptr = (jrawMonitorID)rmonitor; |
|
3220 |
||
3221 |
return JVMTI_ERROR_NONE; |
|
3222 |
} /* end CreateRawMonitor */ |
|
3223 |
||
3224 |
||
3225 |
// rmonitor - pre-checked for validity |
|
3226 |
jvmtiError |
|
3227 |
JvmtiEnv::DestroyRawMonitor(JvmtiRawMonitor * rmonitor) { |
|
3228 |
if (Threads::number_of_threads() == 0) { |
|
3229 |
// Remove this monitor from pending raw monitors list |
|
3230 |
// if it has entered in onload or start phase. |
|
3231 |
JvmtiPendingMonitors::destroy(rmonitor); |
|
3232 |
} else { |
|
3233 |
Thread* thread = Thread::current(); |
|
3234 |
if (rmonitor->is_entered(thread)) { |
|
3235 |
// The caller owns this monitor which we are about to destroy. |
|
3236 |
// We exit the underlying synchronization object so that the |
|
3237 |
// "delete monitor" call below can work without an assertion |
|
3238 |
// failure on systems that don't like destroying synchronization |
|
3239 |
// objects that are locked. |
|
3240 |
int r; |
|
3241 |
intptr_t recursion = rmonitor->recursions(); |
|
3242 |
for (intptr_t i=0; i <= recursion; i++) { |
|
3243 |
r = rmonitor->raw_exit(thread); |
|
3244 |
assert(r == ObjectMonitor::OM_OK, "raw_exit should have worked"); |
|
3245 |
if (r != ObjectMonitor::OM_OK) { // robustness |
|
3246 |
return JVMTI_ERROR_INTERNAL; |
|
3247 |
} |
|
3248 |
} |
|
3249 |
} |
|
3250 |
if (rmonitor->owner() != NULL) { |
|
3251 |
// The caller is trying to destroy a monitor that is locked by |
|
3252 |
// someone else. While this is not forbidden by the JVMTI |
|
3253 |
// spec, it will cause an assertion failure on systems that don't |
|
3254 |
// like destroying synchronization objects that are locked. |
|
3255 |
// We indicate a problem with the error return (and leak the |
|
3256 |
// monitor's memory). |
|
3257 |
return JVMTI_ERROR_NOT_MONITOR_OWNER; |
|
3258 |
} |
|
3259 |
} |
|
3260 |
||
3261 |
delete rmonitor; |
|
3262 |
||
3263 |
return JVMTI_ERROR_NONE; |
|
3264 |
} /* end DestroyRawMonitor */ |
|
3265 |
||
3266 |
||
3267 |
// rmonitor - pre-checked for validity |
|
3268 |
jvmtiError |
|
3269 |
JvmtiEnv::RawMonitorEnter(JvmtiRawMonitor * rmonitor) { |
|
3270 |
if (Threads::number_of_threads() == 0) { |
|
3271 |
// No JavaThreads exist so ObjectMonitor enter cannot be |
|
3272 |
// used, add this raw monitor to the pending list. |
|
3273 |
// The pending monitors will be actually entered when |
|
3274 |
// the VM is setup. |
|
3275 |
// See transition_pending_raw_monitors in create_vm() |
|
3276 |
// in thread.cpp. |
|
3277 |
JvmtiPendingMonitors::enter(rmonitor); |
|
3278 |
} else { |
|
33589
7cbd1b2c139b
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
goetz
parents:
32595
diff
changeset
|
3279 |
int r = 0; |
1 | 3280 |
Thread* thread = Thread::current(); |
3281 |
||
3282 |
if (thread->is_Java_thread()) { |
|
3283 |
JavaThread* current_thread = (JavaThread*)thread; |
|
3284 |
||
3285 |
#ifdef PROPER_TRANSITIONS |
|
3286 |
// Not really unknown but ThreadInVMfromNative does more than we want |
|
3287 |
ThreadInVMfromUnknown __tiv; |
|
3288 |
{ |
|
3289 |
ThreadBlockInVM __tbivm(current_thread); |
|
3290 |
r = rmonitor->raw_enter(current_thread); |
|
3291 |
} |
|
3292 |
#else |
|
3293 |
/* Transition to thread_blocked without entering vm state */ |
|
3294 |
/* This is really evil. Normally you can't undo _thread_blocked */ |
|
3295 |
/* transitions like this because it would cause us to miss a */ |
|
3296 |
/* safepoint but since the thread was already in _thread_in_native */ |
|
3297 |
/* the thread is not leaving a safepoint safe state and it will */ |
|
3298 |
/* block when it tries to return from native. We can't safepoint */ |
|
3299 |
/* block in here because we could deadlock the vmthread. Blech. */ |
|
3300 |
||
3301 |
JavaThreadState state = current_thread->thread_state(); |
|
3302 |
assert(state == _thread_in_native, "Must be _thread_in_native"); |
|
3303 |
// frame should already be walkable since we are in native |
|
3304 |
assert(!current_thread->has_last_Java_frame() || |
|
3305 |
current_thread->frame_anchor()->walkable(), "Must be walkable"); |
|
3306 |
current_thread->set_thread_state(_thread_blocked); |
|
3307 |
||
3308 |
r = rmonitor->raw_enter(current_thread); |
|
3309 |
// restore state, still at a safepoint safe state |
|
3310 |
current_thread->set_thread_state(state); |
|
3311 |
||
3312 |
#endif /* PROPER_TRANSITIONS */ |
|
3313 |
assert(r == ObjectMonitor::OM_OK, "raw_enter should have worked"); |
|
3314 |
} else { |
|
3315 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { |
|
3316 |
r = rmonitor->raw_enter(thread); |
|
3317 |
} else { |
|
3318 |
ShouldNotReachHere(); |
|
3319 |
} |
|
3320 |
} |
|
3321 |
||
3322 |
if (r != ObjectMonitor::OM_OK) { // robustness |
|
3323 |
return JVMTI_ERROR_INTERNAL; |
|
3324 |
} |
|
3325 |
} |
|
3326 |
return JVMTI_ERROR_NONE; |
|
3327 |
} /* end RawMonitorEnter */ |
|
3328 |
||
3329 |
||
3330 |
// rmonitor - pre-checked for validity |
|
3331 |
jvmtiError |
|
3332 |
JvmtiEnv::RawMonitorExit(JvmtiRawMonitor * rmonitor) { |
|
3333 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
3334 |
||
3335 |
if (Threads::number_of_threads() == 0) { |
|
3336 |
// No JavaThreads exist so just remove this monitor from the pending list. |
|
3337 |
// Bool value from exit is false if rmonitor is not in the list. |
|
3338 |
if (!JvmtiPendingMonitors::exit(rmonitor)) { |
|
3339 |
err = JVMTI_ERROR_NOT_MONITOR_OWNER; |
|
3340 |
} |
|
3341 |
} else { |
|
33589
7cbd1b2c139b
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
goetz
parents:
32595
diff
changeset
|
3342 |
int r = 0; |
1 | 3343 |
Thread* thread = Thread::current(); |
3344 |
||
3345 |
if (thread->is_Java_thread()) { |
|
3346 |
JavaThread* current_thread = (JavaThread*)thread; |
|
3347 |
#ifdef PROPER_TRANSITIONS |
|
3348 |
// Not really unknown but ThreadInVMfromNative does more than we want |
|
3349 |
ThreadInVMfromUnknown __tiv; |
|
3350 |
#endif /* PROPER_TRANSITIONS */ |
|
3351 |
r = rmonitor->raw_exit(current_thread); |
|
3352 |
} else { |
|
3353 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { |
|
3354 |
r = rmonitor->raw_exit(thread); |
|
3355 |
} else { |
|
3356 |
ShouldNotReachHere(); |
|
3357 |
} |
|
3358 |
} |
|
3359 |
||
3360 |
if (r == ObjectMonitor::OM_ILLEGAL_MONITOR_STATE) { |
|
3361 |
err = JVMTI_ERROR_NOT_MONITOR_OWNER; |
|
3362 |
} else { |
|
3363 |
assert(r == ObjectMonitor::OM_OK, "raw_exit should have worked"); |
|
3364 |
if (r != ObjectMonitor::OM_OK) { // robustness |
|
3365 |
err = JVMTI_ERROR_INTERNAL; |
|
3366 |
} |
|
3367 |
} |
|
3368 |
} |
|
3369 |
return err; |
|
3370 |
} /* end RawMonitorExit */ |
|
3371 |
||
3372 |
||
3373 |
// rmonitor - pre-checked for validity |
|
3374 |
jvmtiError |
|
3375 |
JvmtiEnv::RawMonitorWait(JvmtiRawMonitor * rmonitor, jlong millis) { |
|
33589
7cbd1b2c139b
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
goetz
parents:
32595
diff
changeset
|
3376 |
int r = 0; |
1 | 3377 |
Thread* thread = Thread::current(); |
3378 |
||
3379 |
if (thread->is_Java_thread()) { |
|
3380 |
JavaThread* current_thread = (JavaThread*)thread; |
|
3381 |
#ifdef PROPER_TRANSITIONS |
|
3382 |
// Not really unknown but ThreadInVMfromNative does more than we want |
|
3383 |
ThreadInVMfromUnknown __tiv; |
|
3384 |
{ |
|
3385 |
ThreadBlockInVM __tbivm(current_thread); |
|
3386 |
r = rmonitor->raw_wait(millis, true, current_thread); |
|
3387 |
} |
|
3388 |
#else |
|
3389 |
/* Transition to thread_blocked without entering vm state */ |
|
3390 |
/* This is really evil. Normally you can't undo _thread_blocked */ |
|
3391 |
/* transitions like this because it would cause us to miss a */ |
|
3392 |
/* safepoint but since the thread was already in _thread_in_native */ |
|
3393 |
/* the thread is not leaving a safepoint safe state and it will */ |
|
3394 |
/* block when it tries to return from native. We can't safepoint */ |
|
3395 |
/* block in here because we could deadlock the vmthread. Blech. */ |
|
3396 |
||
3397 |
JavaThreadState state = current_thread->thread_state(); |
|
3398 |
assert(state == _thread_in_native, "Must be _thread_in_native"); |
|
3399 |
// frame should already be walkable since we are in native |
|
3400 |
assert(!current_thread->has_last_Java_frame() || |
|
3401 |
current_thread->frame_anchor()->walkable(), "Must be walkable"); |
|
3402 |
current_thread->set_thread_state(_thread_blocked); |
|
3403 |
||
3404 |
r = rmonitor->raw_wait(millis, true, current_thread); |
|
3405 |
// restore state, still at a safepoint safe state |
|
3406 |
current_thread->set_thread_state(state); |
|
3407 |
||
3408 |
#endif /* PROPER_TRANSITIONS */ |
|
3409 |
} else { |
|
3410 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { |
|
3411 |
r = rmonitor->raw_wait(millis, true, thread); |
|
3412 |
} else { |
|
3413 |
ShouldNotReachHere(); |
|
3414 |
} |
|
3415 |
} |
|
3416 |
||
3417 |
switch (r) { |
|
3418 |
case ObjectMonitor::OM_INTERRUPTED: |
|
3419 |
return JVMTI_ERROR_INTERRUPT; |
|
3420 |
case ObjectMonitor::OM_ILLEGAL_MONITOR_STATE: |
|
3421 |
return JVMTI_ERROR_NOT_MONITOR_OWNER; |
|
3422 |
} |
|
3423 |
assert(r == ObjectMonitor::OM_OK, "raw_wait should have worked"); |
|
3424 |
if (r != ObjectMonitor::OM_OK) { // robustness |
|
3425 |
return JVMTI_ERROR_INTERNAL; |
|
3426 |
} |
|
3427 |
||
3428 |
return JVMTI_ERROR_NONE; |
|
3429 |
} /* end RawMonitorWait */ |
|
3430 |
||
3431 |
||
3432 |
// rmonitor - pre-checked for validity |
|
3433 |
jvmtiError |
|
3434 |
JvmtiEnv::RawMonitorNotify(JvmtiRawMonitor * rmonitor) { |
|
33589
7cbd1b2c139b
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
goetz
parents:
32595
diff
changeset
|
3435 |
int r = 0; |
1 | 3436 |
Thread* thread = Thread::current(); |
3437 |
||
3438 |
if (thread->is_Java_thread()) { |
|
3439 |
JavaThread* current_thread = (JavaThread*)thread; |
|
3440 |
// Not really unknown but ThreadInVMfromNative does more than we want |
|
3441 |
ThreadInVMfromUnknown __tiv; |
|
3442 |
r = rmonitor->raw_notify(current_thread); |
|
3443 |
} else { |
|
3444 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { |
|
3445 |
r = rmonitor->raw_notify(thread); |
|
3446 |
} else { |
|
3447 |
ShouldNotReachHere(); |
|
3448 |
} |
|
3449 |
} |
|
3450 |
||
3451 |
if (r == ObjectMonitor::OM_ILLEGAL_MONITOR_STATE) { |
|
3452 |
return JVMTI_ERROR_NOT_MONITOR_OWNER; |
|
3453 |
} |
|
3454 |
assert(r == ObjectMonitor::OM_OK, "raw_notify should have worked"); |
|
3455 |
if (r != ObjectMonitor::OM_OK) { // robustness |
|
3456 |
return JVMTI_ERROR_INTERNAL; |
|
3457 |
} |
|
3458 |
||
3459 |
return JVMTI_ERROR_NONE; |
|
3460 |
} /* end RawMonitorNotify */ |
|
3461 |
||
3462 |
||
3463 |
// rmonitor - pre-checked for validity |
|
3464 |
jvmtiError |
|
3465 |
JvmtiEnv::RawMonitorNotifyAll(JvmtiRawMonitor * rmonitor) { |
|
33589
7cbd1b2c139b
8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
goetz
parents:
32595
diff
changeset
|
3466 |
int r = 0; |
1 | 3467 |
Thread* thread = Thread::current(); |
3468 |
||
3469 |
if (thread->is_Java_thread()) { |
|
3470 |
JavaThread* current_thread = (JavaThread*)thread; |
|
3471 |
ThreadInVMfromUnknown __tiv; |
|
3472 |
r = rmonitor->raw_notifyAll(current_thread); |
|
3473 |
} else { |
|
3474 |
if (thread->is_VM_thread() || thread->is_ConcurrentGC_thread()) { |
|
3475 |
r = rmonitor->raw_notifyAll(thread); |
|
3476 |
} else { |
|
3477 |
ShouldNotReachHere(); |
|
3478 |
} |
|
3479 |
} |
|
3480 |
||
3481 |
if (r == ObjectMonitor::OM_ILLEGAL_MONITOR_STATE) { |
|
3482 |
return JVMTI_ERROR_NOT_MONITOR_OWNER; |
|
3483 |
} |
|
3484 |
assert(r == ObjectMonitor::OM_OK, "raw_notifyAll should have worked"); |
|
3485 |
if (r != ObjectMonitor::OM_OK) { // robustness |
|
3486 |
return JVMTI_ERROR_INTERNAL; |
|
3487 |
} |
|
3488 |
||
3489 |
return JVMTI_ERROR_NONE; |
|
3490 |
} /* end RawMonitorNotifyAll */ |
|
3491 |
||
3492 |
||
3493 |
// |
|
3494 |
// JNI Function Interception functions |
|
3495 |
// |
|
3496 |
||
3497 |
||
3498 |
// function_table - pre-checked for NULL |
|
3499 |
jvmtiError |
|
3500 |
JvmtiEnv::SetJNIFunctionTable(const jniNativeInterface* function_table) { |
|
3501 |
// Copy jni function table at safepoint. |
|
3502 |
VM_JNIFunctionTableCopier copier(function_table); |
|
3503 |
VMThread::execute(&copier); |
|
3504 |
||
3505 |
return JVMTI_ERROR_NONE; |
|
3506 |
} /* end SetJNIFunctionTable */ |
|
3507 |
||
3508 |
||
3509 |
// function_table - pre-checked for NULL |
|
3510 |
jvmtiError |
|
3511 |
JvmtiEnv::GetJNIFunctionTable(jniNativeInterface** function_table) { |
|
3512 |
*function_table=(jniNativeInterface*)jvmtiMalloc(sizeof(jniNativeInterface)); |
|
3513 |
if (*function_table == NULL) |
|
3514 |
return JVMTI_ERROR_OUT_OF_MEMORY; |
|
3515 |
memcpy(*function_table,(JavaThread::current())->get_jni_functions(),sizeof(jniNativeInterface)); |
|
3516 |
return JVMTI_ERROR_NONE; |
|
3517 |
} /* end GetJNIFunctionTable */ |
|
3518 |
||
3519 |
||
3520 |
// |
|
3521 |
// Event Management functions |
|
3522 |
// |
|
3523 |
||
3524 |
jvmtiError |
|
3525 |
JvmtiEnv::GenerateEvents(jvmtiEvent event_type) { |
|
3526 |
// can only generate two event types |
|
3527 |
if (event_type != JVMTI_EVENT_COMPILED_METHOD_LOAD && |
|
3528 |
event_type != JVMTI_EVENT_DYNAMIC_CODE_GENERATED) { |
|
3529 |
return JVMTI_ERROR_ILLEGAL_ARGUMENT; |
|
3530 |
} |
|
3531 |
||
3532 |
// for compiled_method_load events we must check that the environment |
|
3533 |
// has the can_generate_compiled_method_load_events capability. |
|
3534 |
if (event_type == JVMTI_EVENT_COMPILED_METHOD_LOAD) { |
|
3535 |
if (get_capabilities()->can_generate_compiled_method_load_events == 0) { |
|
3536 |
return JVMTI_ERROR_MUST_POSSESS_CAPABILITY; |
|
3537 |
} |
|
3538 |
return JvmtiCodeBlobEvents::generate_compiled_method_load_events(this); |
|
3539 |
} else { |
|
3540 |
return JvmtiCodeBlobEvents::generate_dynamic_code_events(this); |
|
3541 |
} |
|
3542 |
||
3543 |
} /* end GenerateEvents */ |
|
3544 |
||
3545 |
||
3546 |
// |
|
3547 |
// Extension Mechanism functions |
|
3548 |
// |
|
3549 |
||
3550 |
// extension_count_ptr - pre-checked for NULL |
|
3551 |
// extensions - pre-checked for NULL |
|
3552 |
jvmtiError |
|
3553 |
JvmtiEnv::GetExtensionFunctions(jint* extension_count_ptr, jvmtiExtensionFunctionInfo** extensions) { |
|
3554 |
return JvmtiExtensions::get_functions(this, extension_count_ptr, extensions); |
|
3555 |
} /* end GetExtensionFunctions */ |
|
3556 |
||
3557 |
||
3558 |
// extension_count_ptr - pre-checked for NULL |
|
3559 |
// extensions - pre-checked for NULL |
|
3560 |
jvmtiError |
|
3561 |
JvmtiEnv::GetExtensionEvents(jint* extension_count_ptr, jvmtiExtensionEventInfo** extensions) { |
|
3562 |
return JvmtiExtensions::get_events(this, extension_count_ptr, extensions); |
|
3563 |
} /* end GetExtensionEvents */ |
|
3564 |
||
3565 |
||
3566 |
// callback - NULL is a valid value, must be checked |
|
3567 |
jvmtiError |
|
3568 |
JvmtiEnv::SetExtensionEventCallback(jint extension_event_index, jvmtiExtensionEvent callback) { |
|
3569 |
return JvmtiExtensions::set_event_callback(this, extension_event_index, callback); |
|
3570 |
} /* end SetExtensionEventCallback */ |
|
3571 |
||
3572 |
// |
|
3573 |
// Timers functions |
|
3574 |
// |
|
3575 |
||
3576 |
// info_ptr - pre-checked for NULL |
|
3577 |
jvmtiError |
|
3578 |
JvmtiEnv::GetCurrentThreadCpuTimerInfo(jvmtiTimerInfo* info_ptr) { |
|
3579 |
os::current_thread_cpu_time_info(info_ptr); |
|
3580 |
return JVMTI_ERROR_NONE; |
|
3581 |
} /* end GetCurrentThreadCpuTimerInfo */ |
|
3582 |
||
3583 |
||
3584 |
// nanos_ptr - pre-checked for NULL |
|
3585 |
jvmtiError |
|
3586 |
JvmtiEnv::GetCurrentThreadCpuTime(jlong* nanos_ptr) { |
|
3587 |
*nanos_ptr = os::current_thread_cpu_time(); |
|
3588 |
return JVMTI_ERROR_NONE; |
|
3589 |
} /* end GetCurrentThreadCpuTime */ |
|
3590 |
||
3591 |
||
3592 |
// info_ptr - pre-checked for NULL |
|
3593 |
jvmtiError |
|
3594 |
JvmtiEnv::GetThreadCpuTimerInfo(jvmtiTimerInfo* info_ptr) { |
|
3595 |
os::thread_cpu_time_info(info_ptr); |
|
3596 |
return JVMTI_ERROR_NONE; |
|
3597 |
} /* end GetThreadCpuTimerInfo */ |
|
3598 |
||
3599 |
||
3600 |
// Threads_lock NOT held, java_thread not protected by lock |
|
3601 |
// java_thread - pre-checked |
|
3602 |
// nanos_ptr - pre-checked for NULL |
|
3603 |
jvmtiError |
|
3604 |
JvmtiEnv::GetThreadCpuTime(JavaThread* java_thread, jlong* nanos_ptr) { |
|
3605 |
*nanos_ptr = os::thread_cpu_time(java_thread); |
|
3606 |
return JVMTI_ERROR_NONE; |
|
3607 |
} /* end GetThreadCpuTime */ |
|
3608 |
||
3609 |
||
3610 |
// info_ptr - pre-checked for NULL |
|
3611 |
jvmtiError |
|
3612 |
JvmtiEnv::GetTimerInfo(jvmtiTimerInfo* info_ptr) { |
|
3613 |
os::javaTimeNanos_info(info_ptr); |
|
3614 |
return JVMTI_ERROR_NONE; |
|
3615 |
} /* end GetTimerInfo */ |
|
3616 |
||
3617 |
||
3618 |
// nanos_ptr - pre-checked for NULL |
|
3619 |
jvmtiError |
|
3620 |
JvmtiEnv::GetTime(jlong* nanos_ptr) { |
|
3621 |
*nanos_ptr = os::javaTimeNanos(); |
|
3622 |
return JVMTI_ERROR_NONE; |
|
3623 |
} /* end GetTime */ |
|
3624 |
||
3625 |
||
3626 |
// processor_count_ptr - pre-checked for NULL |
|
3627 |
jvmtiError |
|
3628 |
JvmtiEnv::GetAvailableProcessors(jint* processor_count_ptr) { |
|
3629 |
*processor_count_ptr = os::active_processor_count(); |
|
3630 |
return JVMTI_ERROR_NONE; |
|
3631 |
} /* end GetAvailableProcessors */ |
|
3632 |
||
3633 |
// |
|
3634 |
// System Properties functions |
|
3635 |
// |
|
3636 |
||
3637 |
// count_ptr - pre-checked for NULL |
|
3638 |
// property_ptr - pre-checked for NULL |
|
3639 |
jvmtiError |
|
3640 |
JvmtiEnv::GetSystemProperties(jint* count_ptr, char*** property_ptr) { |
|
3641 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
3642 |
||
40244
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8136930: Simplify use of module-system options by custom launchers
hseigel
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diff
changeset
|
3643 |
// Get the number of readable properties. |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
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diff
changeset
|
3644 |
*count_ptr = Arguments::PropertyList_readable_count(Arguments::system_properties()); |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3645 |
|
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3646 |
// Allocate memory to hold the exact number of readable properties. |
1 | 3647 |
err = allocate(*count_ptr * sizeof(char *), (unsigned char **)property_ptr); |
3648 |
if (err != JVMTI_ERROR_NONE) { |
|
3649 |
return err; |
|
3650 |
} |
|
40244
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8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3651 |
int readable_count = 0; |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3652 |
// Loop through the system properties until all the readable properties are found. |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3653 |
for (SystemProperty* p = Arguments::system_properties(); p != NULL && readable_count < *count_ptr; p = p->next()) { |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3654 |
if (p->is_readable()) { |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3655 |
const char *key = p->key(); |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3656 |
char **tmp_value = *property_ptr+readable_count; |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3657 |
readable_count++; |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3658 |
err = allocate((strlen(key)+1) * sizeof(char), (unsigned char**)tmp_value); |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3659 |
if (err == JVMTI_ERROR_NONE) { |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3660 |
strcpy(*tmp_value, key); |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3661 |
} else { |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3662 |
// clean up previously allocated memory. |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3663 |
for (int j=0; j<readable_count; j++) { |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3664 |
Deallocate((unsigned char*)*property_ptr+j); |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3665 |
} |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3666 |
Deallocate((unsigned char*)property_ptr); |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3667 |
break; |
1 | 3668 |
} |
3669 |
} |
|
3670 |
} |
|
40244
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3671 |
assert(err != JVMTI_ERROR_NONE || readable_count == *count_ptr, "Bad readable property count"); |
1 | 3672 |
return err; |
3673 |
} /* end GetSystemProperties */ |
|
3674 |
||
3675 |
||
3676 |
// property - pre-checked for NULL |
|
3677 |
// value_ptr - pre-checked for NULL |
|
3678 |
jvmtiError |
|
3679 |
JvmtiEnv::GetSystemProperty(const char* property, char** value_ptr) { |
|
3680 |
jvmtiError err = JVMTI_ERROR_NONE; |
|
3681 |
const char *value; |
|
3682 |
||
40244
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3683 |
// Return JVMTI_ERROR_NOT_AVAILABLE if property is not readable or doesn't exist. |
b3055c216762
8136930: Simplify use of module-system options by custom launchers
hseigel
parents:
39706
diff
changeset
|
3684 |
value = Arguments::PropertyList_get_readable_value(Arguments::system_properties(), property); |
1 | 3685 |
if (value == NULL) { |
3686 |
err = JVMTI_ERROR_NOT_AVAILABLE; |
|
3687 |
} else { |
|
3688 |
err = allocate((strlen(value)+1) * sizeof(char), (unsigned char **)value_ptr); |
|
3689 |
if (err == JVMTI_ERROR_NONE) { |
|
3690 |
strcpy(*value_ptr, value); |
|
3691 |
} |
|
3692 |
} |
|
3693 |
return err; |
|
3694 |
} /* end GetSystemProperty */ |
|
3695 |
||
3696 |
||
3697 |
// property - pre-checked for NULL |
|
3698 |
// value - NULL is a valid value, must be checked |
|
3699 |
jvmtiError |
|
7724
a92d706dbdd5
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
7444
diff
changeset
|
3700 |
JvmtiEnv::SetSystemProperty(const char* property, const char* value_ptr) { |
1 | 3701 |
jvmtiError err =JVMTI_ERROR_NOT_AVAILABLE; |
3702 |
||
3703 |
for (SystemProperty* p = Arguments::system_properties(); p != NULL; p = p->next()) { |
|
3704 |
if (strcmp(property, p->key()) == 0) { |
|
36508 | 3705 |
if (p->set_writeable_value(value_ptr)) { |
1 | 3706 |
err = JVMTI_ERROR_NONE; |
3707 |
} |
|
3708 |
} |
|
3709 |
} |
|
3710 |
return err; |
|
3711 |
} /* end SetSystemProperty */ |