| /* |
| * Copyright (c) 2003, 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 <string.h> |
| #include "jvmti.h" |
| #include "agent_common.h" |
| #include "jni_tools.h" |
| #include "jvmti_tools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* ============================================================================= */ |
| |
| /* scaffold objects */ |
| static jlong timeout = 0; |
| |
| /* constant names */ |
| #define DEBUGEE_CLASS_NAME "nsk/jvmti/GetObjectHashCode/objhashcode001" |
| #define OBJECT_CLASS_NAME "nsk/jvmti/GetObjectHashCode/objhashcode001TestedClass" |
| #define OBJECT_CLASS_SIG "L"OBJECT_CLASS_NAME";" |
| #define OBJECT_FIELD_NAME "testedObject" |
| |
| /* ============================================================================= */ |
| |
| /** Agent algorithm. */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) { |
| NSK_DISPLAY0("Wait for object created\n"); |
| if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout))) |
| return; |
| |
| /* perform testing */ |
| { |
| jobject testedObject = NULL; |
| jint objectHashCode = 0; |
| |
| NSK_DISPLAY0(">>> Obtain tested object from a static field of debugee class\n"); |
| { |
| jclass debugeeClass = NULL; |
| jfieldID objectField = NULL; |
| |
| NSK_DISPLAY1("Find debugee class: %s\n", DEBUGEE_CLASS_NAME); |
| if (!NSK_JNI_VERIFY(jni, (debugeeClass = |
| NSK_CPP_STUB2(FindClass, jni, DEBUGEE_CLASS_NAME)) != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY1(" ... found class: %p\n", (void*)debugeeClass); |
| |
| NSK_DISPLAY1("Find static field: %s\n", OBJECT_FIELD_NAME); |
| if (!NSK_JNI_VERIFY(jni, (objectField = |
| NSK_CPP_STUB4(GetStaticFieldID, jni, debugeeClass, |
| OBJECT_FIELD_NAME, OBJECT_CLASS_SIG)) != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY1(" ... got fieldID: %p\n", (void*)objectField); |
| |
| NSK_DISPLAY1("Get object from static field: %s\n", OBJECT_FIELD_NAME); |
| if (!NSK_JNI_VERIFY(jni, (testedObject = |
| NSK_CPP_STUB3(GetStaticObjectField, jni, debugeeClass, |
| objectField)) != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY1(" ... got object: %p\n", (void*)testedObject); |
| |
| NSK_DISPLAY1("Create global reference for object: %p\n", (void*)testedObject); |
| if (!NSK_JNI_VERIFY(jni, (testedObject = |
| NSK_CPP_STUB2(NewGlobalRef, jni, testedObject)) != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY1(" ... got reference: %p\n", (void*)testedObject); |
| } |
| |
| NSK_DISPLAY0(">>> Testcase #1: get initial hash code of the object\n"); |
| { |
| NSK_DISPLAY1("Get hashcode for object: %p\n", (void*)testedObject); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetObjectHashCode, jvmti, testedObject, &objectHashCode))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY1(" ... got hash code: %d\n", (int)objectHashCode); |
| } |
| |
| NSK_DISPLAY0(">>> Testcase #2: get hash code of not changed object and compare with initial\n"); |
| { |
| jint hashCode = 0; |
| |
| NSK_DISPLAY1("Get hashcode for object: %p\n", (void*)testedObject); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetObjectHashCode, jvmti, testedObject, &hashCode))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY1(" ... got hash code: %d\n", (int)hashCode); |
| |
| if (hashCode != objectHashCode) { |
| NSK_COMPLAIN2("Other call to GetObjectHasCode for not changed object returns different value\n" |
| "# got hash code: %d\n" |
| "# initial hash code: %d\n", |
| (int)hashCode, (int)objectHashCode); |
| nsk_jvmti_setFailStatus(); |
| } else { |
| NSK_DISPLAY2("SUCCESS: Got hash code is equal to initial: %d = %d\n", |
| (int)hashCode, (int)objectHashCode); |
| } |
| } |
| |
| NSK_DISPLAY0(">>> Testcase #3: get hash code of changed object and compare with initial\n"); |
| { |
| jint hashCode = 0; |
| |
| NSK_DISPLAY0("Let debugee to change object data\n"); |
| if (!NSK_VERIFY(nsk_jvmti_resumeSync())) |
| return; |
| if (!NSK_VERIFY(nsk_jvmti_waitForSync(timeout))) |
| return; |
| |
| NSK_DISPLAY1("Get hashcode for object: %p\n", (void*)testedObject); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetObjectHashCode, jvmti, testedObject, &hashCode))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| NSK_DISPLAY1(" ... got hash code: %d\n", (int)hashCode); |
| |
| if (hashCode != objectHashCode) { |
| NSK_COMPLAIN2("Other call to GetObjectHasCode for changed object returns different value\n" |
| "# got hash code: %d\n" |
| "# initial hash code: %d\n", |
| (int)hashCode, (int)objectHashCode); |
| nsk_jvmti_setFailStatus(); |
| } else { |
| NSK_DISPLAY2("SUCCESS: Got hash code is equal to initial: %d = %d\n", |
| (int)hashCode, (int)objectHashCode); |
| } |
| } |
| |
| NSK_DISPLAY0(">>> Clean used data\n"); |
| { |
| NSK_DISPLAY1("Delete object reference: %p\n", (void*)testedObject); |
| NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, testedObject)); |
| } |
| } |
| |
| NSK_DISPLAY0("Let debugee to finish\n"); |
| if (!NSK_VERIFY(nsk_jvmti_resumeSync())) |
| return; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_objhashcode001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_objhashcode001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_objhashcode001(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| jvmtiEnv* jvmti = NULL; |
| |
| /* init framework and parse options */ |
| if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) |
| return JNI_ERR; |
| |
| timeout = nsk_jvmti_getWaitTime() * 60 * 1000; |
| |
| /* create JVMTI environment */ |
| if (!NSK_VERIFY((jvmti = |
| nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) |
| return JNI_ERR; |
| |
| /* register agent proc and arg */ |
| if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
| return JNI_ERR; |
| |
| return JNI_OK; |
| } |
| |
| /* ============================================================================= */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
