/* * 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 "jni_tools.h" #include "agent_common.h" #include "jvmti_tools.h" #define PASSED 0 #define STATUS_FAILED 2 #define SAMPLE_TAG ((jlong) 111111) extern "C" { /* ========================================================================== */ /* scaffold objects */ static jlong timeout = 0; /* test objects */ static jobject testedObject = NULL; static jobject testedInstance = NULL; static jclass testedClass = NULL; static int ObjectsCount = 0; /* ========================================================================== */ /** callback functions **/ static jvmtiIterationControl JNICALL heap_object_callback (jlong class_tag, jlong size, jlong* tag_ptr, void* user_data) { char buffer[32]; if (*tag_ptr != 0) { NSK_DISPLAY1("tag = %s\n", jlong_to_string(*tag_ptr, buffer)); if (*tag_ptr == SAMPLE_TAG) { ObjectsCount++; } else { NSK_COMPLAIN1("testedObject tagged incorrectly, expected=%s,", jlong_to_string(SAMPLE_TAG, buffer)); NSK_COMPLAIN1(" got=%s\n", jlong_to_string(*tag_ptr, buffer)); nsk_jvmti_setFailStatus(); } } return JVMTI_ITERATION_CONTINUE; } /* ========================================================================== */ static int prepare(JNIEnv* jni) { const char* CLASS_NAME = "nsk/jvmti/scenarios/multienv/MA04/ma04t002"; const char* FIELD_NAME = "testedObject1"; const char* FIELD_SIGNATURE = "Ljava/lang/Object;"; const char* INSTANCE_NAME = "testedInstance1"; const char* INSTANCE_SIGNATURE = "Lnsk/jvmti/scenarios/multienv/MA04/ma04t002;"; jfieldID fid = NULL; NSK_DISPLAY0("Obtain tested object from a static field of debugee class\n"); NSK_DISPLAY1("Find class: %s\n", CLASS_NAME); if (!NSK_JNI_VERIFY(jni, (testedClass = jni->FindClass(CLASS_NAME)) != NULL)) return NSK_FALSE; if (!NSK_JNI_VERIFY(jni, (testedClass = (jclass) jni->NewGlobalRef(testedClass)) != NULL)) return NSK_FALSE; NSK_DISPLAY2("Find field: %s:%s\n", FIELD_NAME, FIELD_SIGNATURE); if (!NSK_JNI_VERIFY(jni, (fid = jni->GetStaticFieldID(testedClass, FIELD_NAME, FIELD_SIGNATURE)) != NULL)) return NSK_FALSE; if (!NSK_JNI_VERIFY(jni, (testedObject = jni->GetStaticObjectField(testedClass, fid)) != NULL)) return NSK_FALSE; NSK_DISPLAY2("Find class instance: %s:%s\n", INSTANCE_NAME, INSTANCE_SIGNATURE); if (!NSK_JNI_VERIFY(jni, (fid = jni->GetStaticFieldID(testedClass, INSTANCE_NAME, INSTANCE_SIGNATURE)) != NULL)) return NSK_FALSE; if (!NSK_JNI_VERIFY(jni, (testedInstance = jni->GetStaticObjectField(testedClass, fid)) != NULL)) return NSK_FALSE; return NSK_TRUE; } /* ========================================================================== */ /** Agent algorithm. */ static void JNICALL agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { jint dummy; if (!nsk_jvmti_waitForSync(timeout)) return; if (!prepare(jni)) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY0("Testcase #1: check that there are no tagged objects\n"); ObjectsCount = 0; if (!NSK_JVMTI_VERIFY(jvmti->IterateOverHeap(JVMTI_HEAP_OBJECT_EITHER, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 0) { NSK_COMPLAIN1("Some objects were unexpectedly tagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } ObjectsCount = 0; if (!NSK_JVMTI_VERIFY(jvmti->IterateOverHeap(JVMTI_HEAP_OBJECT_TAGGED, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 0) { NSK_COMPLAIN1("Some objects were unexpectedly tagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } ObjectsCount = 0; if (!NSK_JVMTI_VERIFY(jvmti->IterateOverInstancesOfClass(testedClass, JVMTI_HEAP_OBJECT_EITHER, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 0) { NSK_COMPLAIN1("Some class instances were unexpectedly tagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } ObjectsCount = 0; if (!NSK_JVMTI_VERIFY(jvmti->IterateOverInstancesOfClass(testedClass, JVMTI_HEAP_OBJECT_TAGGED, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 0) { NSK_COMPLAIN1("Some class instances were unexpectedly tagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } if (!NSK_JVMTI_VERIFY(jvmti->SetTag(testedObject, SAMPLE_TAG))) { nsk_jvmti_setFailStatus(); return; } if (!NSK_VERIFY(nsk_jvmti_resumeSync())) return; if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout))) return; NSK_DISPLAY0("Testcase #2: check that there is only one object tagged\n"); ObjectsCount = 0; if (!NSK_JVMTI_VERIFY( jvmti->IterateOverHeap(JVMTI_HEAP_OBJECT_EITHER, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 1) { NSK_COMPLAIN1("Expected 1 object to be tagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } ObjectsCount = 0; if (!NSK_JVMTI_VERIFY( jvmti->IterateOverHeap(JVMTI_HEAP_OBJECT_TAGGED, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 1) { NSK_COMPLAIN1("Expected 1 object to be tagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } ObjectsCount = 0; if (!NSK_JVMTI_VERIFY(jvmti->IterateOverHeap(JVMTI_HEAP_OBJECT_UNTAGGED, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 0) { NSK_COMPLAIN1("Some tagged objects were unexpectedly shown as untagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } if (!NSK_JVMTI_VERIFY(jvmti->SetTag(testedInstance, SAMPLE_TAG))) { nsk_jvmti_setFailStatus(); return; } if (!NSK_VERIFY(nsk_jvmti_resumeSync())) return; if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout))) return; NSK_DISPLAY0("Testcase #3: check that there is only one class object tagged\n"); ObjectsCount = 0; if (!NSK_JVMTI_VERIFY(jvmti->IterateOverInstancesOfClass(testedClass, JVMTI_HEAP_OBJECT_EITHER, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 1) { NSK_COMPLAIN1("Expected 1 class instance to be tagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } ObjectsCount = 0; if (!NSK_JVMTI_VERIFY(jvmti->IterateOverInstancesOfClass(testedClass, JVMTI_HEAP_OBJECT_EITHER, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 1) { NSK_COMPLAIN1("Expected 1 class instance to be tagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } ObjectsCount = 0; if (!NSK_JVMTI_VERIFY(jvmti->IterateOverHeap(JVMTI_HEAP_OBJECT_UNTAGGED, heap_object_callback, &dummy))) { nsk_jvmti_setFailStatus(); return; } NSK_DISPLAY1("ObjectsCount = %d\n", ObjectsCount); if (ObjectsCount != 0) { NSK_COMPLAIN1("Some tagged class instances were unexpectedly shown as untagged: %d\n", ObjectsCount); nsk_jvmti_setFailStatus(); } NSK_TRACE(jni->DeleteGlobalRef(testedClass)); if (!nsk_jvmti_resumeSync()) return; } /* ========================================================================== */ /** Agent library initialization. */ #ifdef STATIC_BUILD JNIEXPORT jint JNICALL Agent_OnLoad_ma04t002(JavaVM *jvm, char *options, void *reserved) { return Agent_Initialize(jvm, options, reserved); } JNIEXPORT jint JNICALL Agent_OnAttach_ma04t002(JavaVM *jvm, char *options, void *reserved) { return Agent_Initialize(jvm, options, reserved); } JNIEXPORT jint JNI_OnLoad_ma04t002(JavaVM *jvm, char *options, void *reserved) { return JNI_VERSION_1_8; } #endif jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { jvmtiEnv* jvmti = NULL; jvmtiEventCallbacks callbacks; jvmtiCapabilities caps; NSK_DISPLAY0("Agent_OnLoad\n"); if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) return JNI_ERR; timeout = nsk_jvmti_getWaitTime() * 60 * 1000; if (!NSK_VERIFY((jvmti = nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) return JNI_ERR; memset(&caps, 0, sizeof(caps)); caps.can_tag_objects = 1; caps.can_generate_object_free_events = 1; if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps))) { return JNI_ERR; } if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) return JNI_ERR; memset(&callbacks, 0, sizeof(callbacks)); if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks))) return JNI_ERR; if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_OBJECT_FREE, NULL))) return JNI_ERR; return JNI_OK; } /* ========================================================================== */ }