| /* |
| * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "jni.h" |
| #include "jvm.h" |
| #include "jfr/jfr.hpp" |
| #include "jfr/jfrEvents.hpp" |
| #include "jfr/periodic/sampling/jfrThreadSampler.hpp" |
| #include "jfr/recorder/jfrEventSetting.hpp" |
| #include "jfr/recorder/jfrRecorder.hpp" |
| #include "jfr/recorder/checkpoint/jfrMetadataEvent.hpp" |
| #include "jfr/recorder/checkpoint/types/traceid/jfrTraceId.inline.hpp" |
| #include "jfr/recorder/repository/jfrRepository.hpp" |
| #include "jfr/recorder/repository/jfrChunkRotation.hpp" |
| #include "jfr/recorder/repository/jfrChunkWriter.hpp" |
| #include "jfr/recorder/service/jfrOptionSet.hpp" |
| #include "jfr/recorder/stacktrace/jfrStackTraceRepository.hpp" |
| #include "jfr/recorder/stringpool/jfrStringPool.hpp" |
| #include "jfr/jni/jfrGetAllEventClasses.hpp" |
| #include "jfr/jni/jfrJavaSupport.hpp" |
| #include "jfr/jni/jfrJniMethodRegistration.hpp" |
| #include "jfr/instrumentation/jfrEventClassTransformer.hpp" |
| #include "jfr/instrumentation/jfrJvmtiAgent.hpp" |
| #include "jfr/leakprofiler/leakProfiler.hpp" |
| #include "jfr/utilities/jfrJavaLog.hpp" |
| #include "jfr/utilities/jfrTimeConverter.hpp" |
| #include "jfr/utilities/jfrTime.hpp" |
| #include "jfr/writers/jfrJavaEventWriter.hpp" |
| #include "jfrfiles/jfrPeriodic.hpp" |
| #include "logging/log.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "runtime/interfaceSupport.inline.hpp" |
| #include "runtime/mutexLocker.hpp" |
| #include "runtime/os.hpp" |
| #include "runtime/thread.hpp" |
| #include "utilities/debug.hpp" |
| |
| #define NO_TRANSITION(result_type, header) extern "C" { result_type JNICALL header { |
| #define NO_TRANSITION_END } } |
| |
| /* |
| * NO_TRANSITION entries |
| * |
| * Thread remains _thread_in_native |
| */ |
| |
| NO_TRANSITION(void, jfr_register_natives(JNIEnv* env, jclass jvmclass)) |
| JfrJniMethodRegistration register_native_methods(env); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jboolean, jfr_is_enabled()) |
| return Jfr::is_enabled() ? JNI_TRUE : JNI_FALSE; |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jboolean, jfr_is_disabled()) |
| return Jfr::is_disabled() ? JNI_TRUE : JNI_FALSE; |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jboolean, jfr_is_started()) |
| return JfrRecorder::is_created() ? JNI_TRUE : JNI_FALSE; |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jstring, jfr_get_pid(JNIEnv* env, jobject jvm)) |
| char pid_buf[32] = { 0 }; |
| jio_snprintf(pid_buf, sizeof(pid_buf), "%d", os::current_process_id()); |
| jstring pid_string = env->NewStringUTF(pid_buf); |
| return pid_string; // exception pending if NULL |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jlong, jfr_elapsed_frequency(JNIEnv* env, jobject jvm)) |
| return JfrTime::frequency(); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jlong, jfr_elapsed_counter(JNIEnv* env, jobject jvm)) |
| return JfrTicks::now(); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_retransform_classes(JNIEnv* env, jobject jvm, jobjectArray classes)) |
| JfrJvmtiAgent::retransform_classes(env, classes, JavaThread::thread_from_jni_environment(env)); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_set_enabled(JNIEnv* env, jobject jvm, jlong event_type_id, jboolean enabled)) |
| JfrEventSetting::set_enabled(event_type_id, JNI_TRUE == enabled); |
| if (EventOldObjectSample::eventId == event_type_id) { |
| ThreadInVMfromNative transition(JavaThread::thread_from_jni_environment(env)); |
| if (JNI_TRUE == enabled) { |
| LeakProfiler::start(JfrOptionSet::old_object_queue_size()); |
| } else { |
| LeakProfiler::stop(); |
| } |
| } |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_set_file_notification(JNIEnv* env, jobject jvm, jlong threshold)) |
| JfrChunkRotation::set_threshold(threshold); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_set_sample_threads(JNIEnv* env, jobject jvm, jboolean sampleThreads)) |
| JfrOptionSet::set_sample_threads(sampleThreads); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_set_stack_depth(JNIEnv* env, jobject jvm, jint depth)) |
| JfrOptionSet::set_stackdepth((jlong)depth); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_set_stacktrace_enabled(JNIEnv* env, jobject jvm, jlong event_type_id, jboolean enabled)) |
| JfrEventSetting::set_stacktrace(event_type_id, JNI_TRUE == enabled); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_set_global_buffer_count(JNIEnv* env, jobject jvm, jlong count)) |
| JfrOptionSet::set_num_global_buffers(count); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_set_global_buffer_size(JNIEnv* env, jobject jvm, jlong size)) |
| JfrOptionSet::set_global_buffer_size(size); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_set_thread_buffer_size(JNIEnv* env, jobject jvm, jlong size)) |
| JfrOptionSet::set_thread_buffer_size(size); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(void, jfr_set_memory_size(JNIEnv* env, jobject jvm, jlong size)) |
| JfrOptionSet::set_memory_size(size); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jboolean, jfr_set_threshold(JNIEnv* env, jobject jvm, jlong event_type_id, jlong thresholdTicks)) |
| return JfrEventSetting::set_threshold(event_type_id, thresholdTicks) ? JNI_TRUE : JNI_FALSE; |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jboolean, jfr_allow_event_retransforms(JNIEnv* env, jobject jvm)) |
| return JfrOptionSet::allow_event_retransforms() ? JNI_TRUE : JNI_FALSE; |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jboolean, jfr_is_available(JNIEnv* env, jclass jvm)) |
| return !Jfr::is_disabled() ? JNI_TRUE : JNI_FALSE; |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jlong, jfr_get_epoch_address(JNIEnv* env, jobject jvm)) |
| return JfrTraceIdEpoch::epoch_address(); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jlong, jfr_get_unloaded_event_classes_count(JNIEnv* env, jobject jvm)) |
| return JfrEventClasses::unloaded_event_classes_count(); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jdouble, jfr_time_conv_factor(JNIEnv* env, jobject jvm)) |
| return (jdouble)JfrTimeConverter::nano_to_counter_multiplier(); |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jboolean, jfr_set_cutoff(JNIEnv* env, jobject jvm, jlong event_type_id, jlong cutoff_ticks)) |
| return JfrEventSetting::set_cutoff(event_type_id, cutoff_ticks) ? JNI_TRUE : JNI_FALSE; |
| NO_TRANSITION_END |
| |
| NO_TRANSITION(jboolean, jfr_should_rotate_disk(JNIEnv* env, jobject jvm)) |
| return JfrChunkRotation::should_rotate() ? JNI_TRUE : JNI_FALSE; |
| NO_TRANSITION_END |
| |
| /* |
| * JVM_ENTRY_NO_ENV entries |
| * |
| * Transitions: |
| * Entry: _thread_in_native -> _thread_in_vm |
| * Exit: _thread_in_vm -> _thread_in_native |
| * |
| * Current JavaThread available as "thread" variable |
| */ |
| |
| JVM_ENTRY_NO_ENV(jboolean, jfr_create_jfr(JNIEnv* env, jobject jvm, jboolean simulate_failure)) |
| if (JfrRecorder::is_created()) { |
| return JNI_TRUE; |
| } |
| if (!JfrRecorder::create(simulate_failure == JNI_TRUE)) { |
| JfrJavaSupport::throw_illegal_state_exception("Unable to start Jfr", thread); |
| return JNI_FALSE; |
| } |
| return JNI_TRUE; |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jboolean, jfr_destroy_jfr(JNIEnv* env, jobject jvm)) |
| JfrRecorder::destroy(); |
| return JNI_TRUE; |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_begin_recording(JNIEnv* env, jobject jvm)) |
| if (JfrRecorder::is_recording()) { |
| return; |
| } |
| JfrRecorder::start_recording(); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_end_recording(JNIEnv* env, jobject jvm)) |
| if (!JfrRecorder::is_recording()) { |
| return; |
| } |
| JfrRecorder::stop_recording(); |
| JVM_END |
| |
| |
| JVM_ENTRY_NO_ENV(jboolean, jfr_emit_event(JNIEnv* env, jobject jvm, jlong eventTypeId, jlong timeStamp, jlong when)) |
| JfrPeriodicEventSet::requestEvent((JfrEventId)eventTypeId); |
| return thread->has_pending_exception() ? JNI_FALSE : JNI_TRUE; |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jobject, jfr_get_all_event_classes(JNIEnv* env, jobject jvm)) |
| return JfrEventClasses::get_all_event_classes(thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jlong, jfr_class_id(JNIEnv* env, jclass jvm, jclass jc)) |
| return JfrTraceId::use(jc); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jlong, jfr_stacktrace_id(JNIEnv* env, jobject jvm, jint skip)) |
| return JfrStackTraceRepository::record(thread, skip); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_log(JNIEnv* env, jobject jvm, jint tag_set, jint level, jstring message)) |
| JfrJavaLog::log(tag_set, level, message, thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_subscribe_log_level(JNIEnv* env, jobject jvm, jobject log_tag, jint id)) |
| JfrJavaLog::subscribe_log_level(log_tag, id, thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_set_output(JNIEnv* env, jobject jvm, jstring path)) |
| JfrRepository::set_chunk_path(path, thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_set_method_sampling_interval(JNIEnv* env, jobject jvm, jlong type, jlong intervalMillis)) |
| if (intervalMillis < 0) { |
| intervalMillis = 0; |
| } |
| JfrEventId typed_event_id = (JfrEventId)type; |
| assert(EventExecutionSample::eventId == typed_event_id || EventNativeMethodSample::eventId == typed_event_id, "invariant"); |
| if (intervalMillis > 0) { |
| JfrEventSetting::set_enabled(typed_event_id, true); // ensure sampling event is enabled |
| } |
| if (EventExecutionSample::eventId == type) { |
| JfrThreadSampling::set_java_sample_interval(intervalMillis); |
| } else { |
| JfrThreadSampling::set_native_sample_interval(intervalMillis); |
| } |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_store_metadata_descriptor(JNIEnv* env, jobject jvm, jbyteArray descriptor)) |
| JfrMetadataEvent::update(descriptor); |
| JVM_END |
| |
| // trace thread id for a thread object |
| JVM_ENTRY_NO_ENV(jlong, jfr_id_for_thread(JNIEnv* env, jobject jvm, jobject t)) |
| return JfrJavaSupport::jfr_thread_id(t); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jobject, jfr_get_event_writer(JNIEnv* env, jclass cls)) |
| return JfrJavaEventWriter::event_writer(thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jobject, jfr_new_event_writer(JNIEnv* env, jclass cls)) |
| return JfrJavaEventWriter::new_event_writer(thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jboolean, jfr_event_writer_flush(JNIEnv* env, jclass cls, jobject writer, jint used_size, jint requested_size)) |
| return JfrJavaEventWriter::flush(writer, used_size, requested_size, thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_flush(JNIEnv* env, jobject jvm)) |
| JfrRepository::flush(thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_set_repository_location(JNIEnv* env, jobject repo, jstring location)) |
| return JfrRepository::set_path(location, thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_uncaught_exception(JNIEnv* env, jobject jvm, jobject t, jthrowable throwable)) |
| JfrJavaSupport::uncaught_exception(throwable, thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_abort(JNIEnv* env, jobject jvm, jstring errorMsg)) |
| JfrJavaSupport::abort(errorMsg, thread); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jlong, jfr_type_id(JNIEnv* env, jobject jvm, jclass jc)) |
| return JfrTraceId::get(jc); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jboolean, jfr_add_string_constant(JNIEnv* env, jclass jvm, jboolean epoch, jlong id, jstring string)) |
| return JfrStringPool::add(epoch == JNI_TRUE, id, string, thread) ? JNI_TRUE : JNI_FALSE; |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_set_force_instrumentation(JNIEnv* env, jobject jvm, jboolean force_instrumentation)) |
| JfrEventClassTransformer::set_force_instrumentation(force_instrumentation == JNI_TRUE); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_emit_old_object_samples(JNIEnv* env, jobject jvm, jlong cutoff_ticks, jboolean emit_all)) |
| LeakProfiler::emit_events(cutoff_ticks, emit_all == JNI_TRUE); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_exclude_thread(JNIEnv* env, jobject jvm, jobject t)) |
| JfrJavaSupport::exclude(t); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(void, jfr_include_thread(JNIEnv* env, jobject jvm, jobject t)) |
| JfrJavaSupport::include(t); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jboolean, jfr_is_thread_excluded(JNIEnv* env, jobject jvm, jobject t)) |
| return JfrJavaSupport::is_excluded(t); |
| JVM_END |
| |
| JVM_ENTRY_NO_ENV(jlong, jfr_chunk_start_nanos(JNIEnv* env, jobject jvm)) |
| return JfrRepository::current_chunk_start_nanos(); |
| JVM_END |
| |