| /* |
| * 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 <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <jvmti.h> |
| #include "agent_common.h" |
| |
| #include "nsk_tools.h" |
| #include "jni_tools.h" |
| #include "JVMTITools.h" |
| #include "jvmti_tools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define PASSED 0 |
| #define STATUS_FAILED 2 |
| |
| #define EXP_OBJ_NUMBER 7 |
| |
| static JNIEnv *jni = NULL; |
| static jvmtiEnv *jvmti = NULL; |
| static jvmtiEventCallbacks callbacks; |
| static jvmtiCapabilities caps; |
| |
| static volatile int obj_free = 0; |
| static volatile long obj_count = 0; |
| |
| static jlong timeout = 0; |
| static int user_data = 0; |
| static const char* DEBUGEE_SIGNATURE = "Lnsk/jvmti/scenarios/allocation/AP01/ap01t001;"; |
| static const jlong DEBUGEE_CLASS_TAG = (jlong)1024; |
| |
| void JNICALL |
| ObjectFree(jvmtiEnv *jvmti_env, jlong tag) { |
| NSK_DISPLAY1("ObjectFree event received for an object with tag %ld\n\n", (long)tag); |
| obj_free++; |
| } |
| |
| void JNICALL |
| VMDeath(jvmtiEnv *jvmti_env, JNIEnv *env) { |
| |
| NSK_DISPLAY0("VMDeath event received\n"); |
| |
| if (obj_free != (EXP_OBJ_NUMBER - 1) ) { |
| NSK_COMPLAIN2("Received unexpected number of ObjectFree events: %d\n\t\ |
| expected number: %d", obj_free, (EXP_OBJ_NUMBER - 1)); |
| exit(95 + STATUS_FAILED); |
| } |
| |
| exit(95 + PASSED); |
| } |
| |
| jvmtiIterationControl JNICALL |
| heapObjectCallback(jlong class_tag, |
| jlong size, |
| jlong* tag_ptr, |
| void* user_data) { |
| |
| if (class_tag == DEBUGEE_CLASS_TAG) { |
| obj_count++; |
| } |
| |
| return JVMTI_ITERATION_CONTINUE; |
| } |
| |
| 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) { |
| |
| if (class_tag == DEBUGEE_CLASS_TAG && *tag_ptr == 0) { |
| obj_count++; |
| *tag_ptr = obj_count; |
| } |
| |
| return JVMTI_ITERATION_CONTINUE; |
| } |
| |
| jvmtiIterationControl JNICALL |
| heapRootCallback( jvmtiHeapRootKind root_kind, |
| jlong class_tag, |
| jlong size, |
| jlong* tag_ptr, |
| void* user_data) { |
| |
| if (class_tag == DEBUGEE_CLASS_TAG && *tag_ptr == 0) { |
| obj_count++; |
| *tag_ptr = obj_count; |
| } |
| |
| return JVMTI_ITERATION_CONTINUE; |
| } |
| |
| jvmtiIterationControl JNICALL |
| objectReferenceCallback( jvmtiObjectReferenceKind reference_kind, |
| jlong class_tag, |
| jlong size, |
| jlong* tag_ptr, |
| jlong referrer_tag, |
| jint referrer_index, |
| void* user_data) { |
| |
| if (class_tag == DEBUGEE_CLASS_TAG && *tag_ptr == 0) { |
| obj_count++; |
| *tag_ptr = obj_count; |
| } |
| |
| return JVMTI_ITERATION_CONTINUE; |
| } |
| |
| |
| /************************/ |
| |
| JNIEXPORT jobject JNICALL |
| Java_nsk_jvmti_scenarios_allocation_AP01_ap01t001_newObject( JNIEnv* jni, jclass cls ) { |
| jmethodID cid; |
| jobject result; |
| |
| if (!NSK_JNI_VERIFY(jni, (cid = |
| NSK_CPP_STUB4(GetMethodID, jni, |
| cls, |
| "<init>", |
| "()V" )) != NULL)) { |
| NSK_COMPLAIN0("newObject: GetMethodID returned NULL\n\n"); |
| nsk_jvmti_setFailStatus(); |
| return NULL; |
| } |
| |
| if (!NSK_JNI_VERIFY(jni, ( result = |
| NSK_CPP_STUB3(NewObject, jni, |
| cls, |
| cid )) != NULL)) { |
| |
| NSK_COMPLAIN0("newObject: NewObject returned NULL\n\n"); |
| nsk_jvmti_setFailStatus(); |
| return NULL; |
| } |
| |
| return result; |
| } |
| |
| JNIEXPORT jobject JNICALL |
| Java_nsk_jvmti_scenarios_allocation_AP01_ap01t001_allocObject( JNIEnv* jni, jclass cls ) { |
| jmethodID cid; |
| jobject result; |
| |
| if (!NSK_JNI_VERIFY(jni, ( cid = |
| NSK_CPP_STUB4(GetMethodID, jni, |
| cls, |
| "<init>", |
| "()V" )) != NULL)) { |
| |
| NSK_COMPLAIN0("allocObject: GetMethodID returned NULL\n\n"); |
| nsk_jvmti_setFailStatus(); |
| return NULL; |
| } |
| |
| if (!NSK_JNI_VERIFY(jni, ( result = |
| NSK_CPP_STUB2(AllocObject, jni, |
| cls )) != NULL)) { |
| |
| NSK_COMPLAIN0("allocObject: AllocObject returned NULL\n\n"); |
| nsk_jvmti_setFailStatus(); |
| return NULL; |
| } |
| |
| if (!NSK_JNI_VERIFY_VOID(jni, |
| NSK_CPP_STUB4(CallNonvirtualVoidMethod, jni, |
| result, |
| cls, |
| cid))) { |
| |
| NSK_COMPLAIN0("newObject: CallNonvirtualVoidMethod failed\n\n"); |
| nsk_jvmti_setFailStatus(); |
| return NULL; |
| } |
| |
| return result; |
| } |
| |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { |
| |
| jclass debugeeClass = NULL; |
| |
| 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; |
| } |
| |
| NSK_DISPLAY0("Set tag for debugee class\n\n"); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(SetTag, jvmti, |
| debugeeClass, |
| DEBUGEE_CLASS_TAG ))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| |
| NSK_DISPLAY0("Calling IterateOverInstancesOfClass with filter JVMTI_HEAP_OBJECT_UNTAGGED\n"); |
| obj_count = 0; |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB5(IterateOverInstancesOfClass, |
| jvmti, |
| debugeeClass, |
| JVMTI_HEAP_OBJECT_UNTAGGED, |
| heapObjectCallback, |
| &user_data))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (obj_count != EXP_OBJ_NUMBER) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN2("IterateOverInstancesOfClass found unexpected number of objects: %d\n\t\ |
| expected number: %d\n\n", obj_count, EXP_OBJ_NUMBER); |
| } else { |
| NSK_DISPLAY1("Number of objects IterateOverInstancesOfClass has found: %d\n\n", obj_count); |
| } |
| |
| NSK_DISPLAY0("Calling IterateOverHeap with filter JVMTI_HEAP_OBJECT_UNTAGGED\n"); |
| obj_count = 0; |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(IterateOverHeap, |
| jvmti, |
| JVMTI_HEAP_OBJECT_UNTAGGED, |
| heapObjectCallback, |
| &user_data))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (obj_count != EXP_OBJ_NUMBER) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN2("IterateOverHeap found unexpected number of objects: %d\n\t\ |
| expected number: %d\n\n", obj_count, EXP_OBJ_NUMBER); |
| } else { |
| NSK_DISPLAY1("Number of objects IterateOverHeap has found: %d\n\n", obj_count); |
| } |
| |
| NSK_DISPLAY0("Calling IterateOverReachableObjects\n"); |
| obj_count = 0; |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB5(IterateOverReachableObjects, jvmti, |
| heapRootCallback, |
| stackReferenceCallback, |
| objectReferenceCallback, |
| &user_data))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (obj_count != EXP_OBJ_NUMBER) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN2("IterateOverReachableObjects found unexpected number of objects: %d\n\t\ |
| expected number: %d\n\n", obj_count, EXP_OBJ_NUMBER); |
| } else { |
| NSK_DISPLAY1("Number of objects IterateOverReachableObjects has found: %d\n\n", obj_count); |
| } |
| |
| NSK_DISPLAY0("Let debugee to provoke GC\n"); |
| if (!NSK_VERIFY(nsk_jvmti_resumeSync())) |
| return; |
| if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout))) |
| return; |
| |
| |
| NSK_DISPLAY0("Let debugee to finish\n"); |
| if (!NSK_VERIFY(nsk_jvmti_resumeSync())) |
| return; |
| } |
| |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_ap01t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_ap01t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_ap01t001(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; |
| |
| memset(&caps, 0, sizeof(jvmtiCapabilities)); |
| caps.can_generate_object_free_events = 1; |
| caps.can_tag_objects = 1; |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, |
| jvmti, &caps))) |
| return JNI_ERR; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetCapabilities, |
| jvmti, &caps))) |
| return JNI_ERR; |
| |
| if (!caps.can_generate_object_free_events) |
| NSK_DISPLAY0("Warning: generation of object free events is not implemented\n"); |
| if (!caps.can_tag_objects) |
| NSK_DISPLAY0("Warning: tagging objects is not implemented\n"); |
| |
| /* set event callback */ |
| NSK_DISPLAY0("setting event callbacks ...\n"); |
| (void) memset(&callbacks, 0, sizeof(callbacks)); |
| |
| callbacks.ObjectFree = &ObjectFree; |
| callbacks.VMDeath = &VMDeath; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetEventCallbacks, |
| jvmti, &callbacks, sizeof(callbacks)))) |
| return JNI_ERR; |
| |
| NSK_DISPLAY0("setting event callbacks done\nenabling JVMTI events ...\n"); |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode, |
| jvmti, JVMTI_ENABLE, JVMTI_EVENT_OBJECT_FREE, NULL))) |
| return JNI_ERR; |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode, |
| jvmti, JVMTI_ENABLE, JVMTI_EVENT_VM_DEATH, NULL))) |
| return JNI_ERR; |
| NSK_DISPLAY0("enabling the events done\n\n"); |
| |
| if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
| return JNI_ERR; |
| NSK_DISPLAY0("agentProc has been set\n\n"); |
| |
| return JNI_OK; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |