/* * Copyright (c) 2004, 2018, 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 #include #include #include "agent_common.h" #include "nsk_tools.h" #include "jni_tools.h" #include "JVMTITools.h" #include "jvmti_tools.h" extern "C" { #define OBJ_MAX_COUNT 100000 static JNIEnv *jni = NULL; static jvmtiEnv *jvmti = NULL; static jvmtiEventCallbacks callbacks; static jvmtiCapabilities caps; static jlong timeout = 0; static const char* DEBUGEE_SIGNATURE = "Lnsk/jvmti/scenarios/allocation/AP04/ap04t001;"; static const char* ROOT_SIGNATURE = "[Lnsk/jvmti/scenarios/allocation/AP04/ap04t001;"; static const int eventsCount = 3; static jvmtiEvent events[] = { JVMTI_EVENT_OBJECT_FREE, JVMTI_EVENT_GARBAGE_COLLECTION_START, JVMTI_EVENT_GARBAGE_COLLECTION_FINISH }; static jclass debugeeClass = NULL; static jfieldID rootFieldID = NULL; static jmethodID unlockSecondaryID = NULL; static volatile int eventCount = 0; static volatile int iterationCount = 0; static volatile int errorCount = 0; /***********************************************************************/ static jrawMonitorID counterMonitor_ptr = NULL; static void increaseCounter(volatile int* counterPtr) { if (!NSK_JVMTI_VERIFY(jvmti->RawMonitorEnter(counterMonitor_ptr))) { nsk_jvmti_setFailStatus(); } (*counterPtr)++; if (!NSK_JVMTI_VERIFY(jvmti->RawMonitorExit(counterMonitor_ptr))) { nsk_jvmti_setFailStatus(); } } static void setCounter(volatile int* counterPtr, int value) { if (!NSK_JVMTI_VERIFY(jvmti->RawMonitorEnter(counterMonitor_ptr))) { nsk_jvmti_setFailStatus(); } *counterPtr = value; if (!NSK_JVMTI_VERIFY(jvmti->RawMonitorExit(counterMonitor_ptr))) { nsk_jvmti_setFailStatus(); } } static int getCounter(volatile int* counterPtr) { int result; if (!NSK_JVMTI_VERIFY(jvmti->RawMonitorEnter(counterMonitor_ptr))) { nsk_jvmti_setFailStatus(); } result = *counterPtr; if (!NSK_JVMTI_VERIFY(jvmti->RawMonitorExit(counterMonitor_ptr))) { nsk_jvmti_setFailStatus(); } return result; } /***********************************************************************/ jvmtiIterationControl JNICALL heapObjectCallback(jlong class_tag, jlong size, jlong* tag_ptr, void* user_data) { int count = 0; /* clean eventCount on first iteration */ if (getCounter(&iterationCount) == 0) { setCounter(&eventCount, 0); } increaseCounter(&iterationCount); /* check if eventCount is 0 for each iteration */ count = getCounter(&eventCount); if (count > 0) { increaseCounter(&errorCount); } return JVMTI_ITERATION_CONTINUE; } /* jvmtiHeapRootCallback */ jvmtiIterationControl JNICALL heapRootCallback(jvmtiHeapRootKind root_kind, jlong class_tag, jlong size, jlong* tag_ptr, void* user_data) { int count = 0; /* clean eventCount on first iteration */ if (getCounter(&iterationCount) == 0) { setCounter(&eventCount, 0); } increaseCounter(&iterationCount); /* check if eventCount is 0 for each iteration */ count = getCounter(&eventCount); if (count > 0) { increaseCounter(&errorCount); } return JVMTI_ITERATION_CONTINUE; } /* jvmtiStackReferenceCallback */ jvmtiIterationControl JNICALL stackReferenceCallback(jvmtiHeapRootKind root_kind, jlong class_tag, jlong size, jlong* tag_ptr, jlong thread_tag, jint depth, jmethodID method, jint slot, void* user_data) { int count = 0; /* clean eventCount on first iteration */ if (getCounter(&iterationCount) == 0) { setCounter(&eventCount, 0); } increaseCounter(&iterationCount); /* check if eventCount is 0 for each iteration */ count = getCounter(&eventCount); if (count > 0) { increaseCounter(&errorCount); } return JVMTI_ITERATION_CONTINUE; } /* jvmtiObjectReferenceCallback */ jvmtiIterationControl JNICALL objectReferenceCallback(jvmtiObjectReferenceKind reference_kind, jlong class_tag, jlong size, jlong* tag_ptr, jlong referrer_tag, jint referrer_index, void* user_data) { int count = 0; /* clean eventCount on first iteration */ if (getCounter(&iterationCount) == 0) { setCounter(&eventCount, 0); } increaseCounter(&iterationCount); /* check if eventCount is 0 for each iteration */ count = getCounter(&eventCount); if (count > 0) { increaseCounter(&errorCount); } return JVMTI_ITERATION_CONTINUE; } /***********************************************************************/ void JNICALL ObjectFree(jvmtiEnv *jvmti_env, jlong tag) { increaseCounter(&eventCount); // NSK_DISPLAY0(" event: ObjectFree\n"); } void JNICALL GarbageCollectionStart(jvmtiEnv *jvmti_env) { increaseCounter(&eventCount); NSK_DISPLAY0(" event: GarbageCollectionStart\n"); } void JNICALL GarbageCollectionFinish(jvmtiEnv *jvmti_env) { increaseCounter(&eventCount); NSK_DISPLAY0(" event: GarbageCollectionFinish\n"); } /***********************************************************************/ JNIEXPORT void JNICALL Java_nsk_jvmti_scenarios_allocation_AP04_ap04t001_setTag(JNIEnv* jni, jclass klass, jobject target, /* object to be tagged */ jlong tag) { if (!NSK_JVMTI_VERIFY(jvmti->SetTag(target, tag))) { nsk_jvmti_setFailStatus(); } } JNIEXPORT void JNICALL Java_nsk_jvmti_scenarios_allocation_AP04_ap04t001_forceGC(JNIEnv* jni, jclass klass) { NSK_DISPLAY0(" run: ForceGarbageCollection\n"); if (!NSK_JVMTI_VERIFY(jvmti->ForceGarbageCollection())) { nsk_jvmti_setFailStatus(); } } JNIEXPORT void JNICALL Java_nsk_jvmti_scenarios_allocation_AP04_ap04t001_runIterateOverHeap(JNIEnv* jni, jclass klass) { int count = 0; setCounter(&errorCount, 0); setCounter(&eventCount, 0); setCounter(&iterationCount, 0); NSK_DISPLAY0("Calling IterateOverHeap...\n"); if (!NSK_JVMTI_VERIFY(jvmti->IterateOverHeap(JVMTI_HEAP_OBJECT_TAGGED, heapObjectCallback, NULL /*user_data*/))) { nsk_jvmti_setFailStatus(); } NSK_DISPLAY0("IterateOverHeap finished.\n"); NSK_DISPLAY1("Iterations count: %d\n", getCounter(&iterationCount)); NSK_DISPLAY1("Events count: %d\n", getCounter(&eventCount)); count = getCounter(&errorCount); NSK_DISPLAY1("Errors detected: %d\n", count); if (count > 0) { NSK_COMPLAIN1("Events detected during heap iteration: %d\n", count); nsk_jvmti_setFailStatus(); } } JNIEXPORT void JNICALL Java_nsk_jvmti_scenarios_allocation_AP04_ap04t001_runIterateOverReachableObjects(JNIEnv* jni, jclass klass) { int count = 0; setCounter(&errorCount, 0); setCounter(&eventCount, 0); setCounter(&iterationCount, 0); NSK_DISPLAY0("Calling IterateOverReachableObjects...\n"); if (!NSK_JVMTI_VERIFY(jvmti->IterateOverReachableObjects(heapRootCallback, stackReferenceCallback, objectReferenceCallback, NULL /*user_data*/))) { nsk_jvmti_setFailStatus(); } NSK_DISPLAY0("IterateOverReachableObjects finished.\n"); NSK_DISPLAY1("Iterations count: %d\n", getCounter(&iterationCount)); NSK_DISPLAY1("Events count: %d\n", getCounter(&eventCount)); count = getCounter(&errorCount); NSK_DISPLAY1("Errors detected: %d\n", count); if (count > 0) { NSK_COMPLAIN1("Events detected during heap iteration: %d\n", count); nsk_jvmti_setFailStatus(); } } JNIEXPORT void JNICALL Java_nsk_jvmti_scenarios_allocation_AP04_ap04t001_runIterateOverInstancesOfClass(JNIEnv* jni, jclass klass) { int count = 0; setCounter(&errorCount, 0); setCounter(&eventCount, 0); setCounter(&iterationCount, 0); NSK_DISPLAY0("Calling IterateOverInstancesOfClass...\n"); if (!NSK_JVMTI_VERIFY(jvmti->IterateOverInstancesOfClass(debugeeClass, JVMTI_HEAP_OBJECT_TAGGED, heapObjectCallback, NULL /*user_data*/))) { nsk_jvmti_setFailStatus(); } NSK_DISPLAY0("IterateOverInstancesOfClass finished.\n"); NSK_DISPLAY1("Iterations count: %d\n", getCounter(&iterationCount)); NSK_DISPLAY1("Events count: %d\n", getCounter(&eventCount)); count = getCounter(&errorCount); NSK_DISPLAY1("Errors detected: %d\n", count); if (count > 0) { NSK_COMPLAIN1("Events detected during heap iteration: %d\n", count); nsk_jvmti_setFailStatus(); } } JNIEXPORT void JNICALL Java_nsk_jvmti_scenarios_allocation_AP04_ap04t001_runIterateOverObjectsReachableFromObject(JNIEnv* jni, jclass klass) { jobject root = NULL; int count = 0; if (!NSK_JNI_VERIFY(jni, (root = jni->GetStaticObjectField(debugeeClass, rootFieldID)) != NULL)) { NSK_COMPLAIN0("GetStaticObjectField returned NULL for 'root' field value\n\n"); nsk_jvmti_setFailStatus(); return; } // release secondary lock jni->CallStaticVoidMethod(debugeeClass, unlockSecondaryID); setCounter(&errorCount, 0); setCounter(&eventCount, 0); setCounter(&iterationCount, 0); NSK_DISPLAY0("Calling IterateOverObjectsReachableFromObject...\n"); if (!NSK_JVMTI_VERIFY(jvmti->IterateOverObjectsReachableFromObject(root, objectReferenceCallback, NULL /*user_data*/))) { nsk_jvmti_setFailStatus(); } NSK_DISPLAY0("IterateOverObjectsReachableFromObject finished.\n"); NSK_DISPLAY1("Iterations count: %d\n", getCounter(&iterationCount)); NSK_DISPLAY1("Events count: %d\n", getCounter(&eventCount)); count = getCounter(&errorCount); NSK_DISPLAY1("Errors detected: %d\n", count); if (count > 0) { NSK_COMPLAIN1("Events detected during heap iteration: %d\n", count); nsk_jvmti_setFailStatus(); } } static void JNICALL agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { NSK_DISPLAY0("Wait for debugee start\n\n"); if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout))) return; NSK_DISPLAY1("Find debugee class: %s\n", DEBUGEE_SIGNATURE); debugeeClass = nsk_jvmti_classBySignature(DEBUGEE_SIGNATURE); if (debugeeClass == NULL) { nsk_jvmti_setFailStatus(); return; } if (!NSK_JNI_VERIFY(jni, (debugeeClass = (jclass)jni->NewGlobalRef(debugeeClass)) != NULL)) return; NSK_DISPLAY1("Find ID of 'root' field: %s\n", ROOT_SIGNATURE); if (!NSK_JNI_VERIFY(jni, (rootFieldID = jni->GetStaticFieldID(debugeeClass, "root", ROOT_SIGNATURE)) != NULL)) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("Find ID of 'unlockSecondary' method: %s\n", ROOT_SIGNATURE); if (!NSK_JNI_VERIFY(jni, (unlockSecondaryID = jni->GetStaticMethodID(debugeeClass, "unlockSecondary", "()V")) != NULL)) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY0("Let debugee to run test cases\n"); if (!NSK_VERIFY(nsk_jvmti_resumeSync())) return; NSK_DISPLAY0("Wait for completion of test cases\n\n"); if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout))) return; nsk_jvmti_enableEvents(JVMTI_DISABLE, eventsCount, events, NULL); NSK_TRACE(jni->DeleteGlobalRef(debugeeClass)); NSK_TRACE(jvmti->DestroyRawMonitor(counterMonitor_ptr)); NSK_DISPLAY0("Let debugee to finish\n"); if (!NSK_VERIFY(nsk_jvmti_resumeSync())) return; } #ifdef STATIC_BUILD JNIEXPORT jint JNICALL Agent_OnLoad_ap04t001(JavaVM *jvm, char *options, void *reserved) { return Agent_Initialize(jvm, options, reserved); } JNIEXPORT jint JNICALL Agent_OnAttach_ap04t001(JavaVM *jvm, char *options, void *reserved) { return Agent_Initialize(jvm, options, reserved); } JNIEXPORT jint JNI_OnLoad_ap04t001(JavaVM *jvm, char *options, void *reserved) { return JNI_VERSION_1_8; } #endif jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { /* init framework and parse options */ if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) return JNI_ERR; /* create JVMTI environment */ if (!NSK_VERIFY((jvmti = nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) return JNI_ERR; if (!NSK_JVMTI_VERIFY(jvmti->CreateRawMonitor("counterMonitor", &counterMonitor_ptr))) { return JNI_ERR; } memset(&caps, 0, sizeof(jvmtiCapabilities)); caps.can_tag_objects = 1; caps.can_generate_object_free_events = 1; caps.can_generate_garbage_collection_events = 1; if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps))) return JNI_ERR; if (!NSK_JVMTI_VERIFY(jvmti->GetCapabilities(&caps))) return JNI_ERR; if (!caps.can_tag_objects) NSK_DISPLAY0("Warning: tagging objects is not available\n"); if (!caps.can_generate_object_free_events) NSK_DISPLAY0("Warning: generation of object free events is not available\n"); if (!caps.can_generate_garbage_collection_events) NSK_DISPLAY0("Warning: generation of garbage collection events is not available\n"); /* set event callback */ NSK_DISPLAY0("setting event callbacks ...\n"); (void) memset(&callbacks, 0, sizeof(callbacks)); callbacks.ObjectFree = &ObjectFree; callbacks.GarbageCollectionStart = &GarbageCollectionStart; callbacks.GarbageCollectionFinish = &GarbageCollectionFinish; if (!NSK_JVMTI_VERIFY(jvmti->SetEventCallbacks(&callbacks, sizeof(callbacks)))) return JNI_ERR; NSK_DISPLAY0("setting event callbacks done.\n"); NSK_DISPLAY0("enabling JVMTI events ...\n"); if (!nsk_jvmti_enableEvents(JVMTI_ENABLE, eventsCount, events, NULL)) { return JNI_ERR; } NSK_DISPLAY0("enabling the events done.\n"); if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) return JNI_ERR; NSK_DISPLAY0("agentProc has been set\n\n"); return JNI_OK; } }