| /* |
| * 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 <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 EXP_OBJ_NUMBER 1 |
| |
| static JNIEnv *jni = NULL; |
| static jvmtiEnv *jvmti = NULL; |
| static jvmtiEventCallbacks callbacks; |
| static jvmtiCapabilities caps; |
| |
| static jlong timeout = 0; |
| static jlong threadTag = 1; |
| static int rootThreadCount = 0; |
| static int rootJNIGlobalCount = 0; |
| static int rootJNILocalCount = 0; |
| static const char* DEBUGEE_SIGNATURE = "Lnsk/jvmti/scenarios/allocation/AP06/ap06t001;"; |
| static const char* THREAD_CLS_SIGNATURE = "Lnsk/jvmti/scenarios/allocation/AP06/ap06t001Thread;"; |
| |
| /* jvmtiHeapRootCallback */ |
| jvmtiIterationControl JNICALL |
| heapRootCallback( jvmtiHeapRootKind root_kind, |
| jlong class_tag, |
| jlong size, |
| jlong* tag_ptr, |
| void* user_data) { |
| |
| if (*tag_ptr == threadTag) { |
| NSK_DISPLAY1("heapRootCallback: root kind=%s\n", TranslateRootKind(root_kind)); |
| switch (root_kind) { |
| case JVMTI_HEAP_ROOT_THREAD: |
| rootThreadCount++; |
| break; |
| case JVMTI_HEAP_ROOT_JNI_GLOBAL: |
| rootJNIGlobalCount++; |
| break; |
| default: |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN1("heapRootCallback: unexpected root kind=%s\n", TranslateRootKind(root_kind)); |
| } |
| } |
| 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) { |
| |
| if (*tag_ptr == threadTag) { |
| NSK_DISPLAY4("stackReferenceCallback: root kind=%s, " |
| "method=%p, depth=%d, slot=%d\n", TranslateRootKind(root_kind), (void *)method, (int)depth, (int)slot); |
| switch (root_kind) { |
| case JVMTI_HEAP_ROOT_STACK_LOCAL: |
| /* it's OK */ |
| break; |
| |
| case JVMTI_HEAP_ROOT_JNI_LOCAL: |
| rootJNILocalCount++; |
| break; |
| default: |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN1("stackReferenceCallback: unexpected root kind: %s\n\n", TranslateRootKind(root_kind)); |
| } |
| } |
| 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) { |
| |
| return JVMTI_ITERATION_ABORT; |
| } |
| |
| |
| /************************/ |
| |
| JNIEXPORT void JNICALL |
| Java_nsk_jvmti_scenarios_allocation_AP06_ap06t001Thread_setTag( JNIEnv* jni, jobject obj) { |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetTag, jvmti, obj, threadTag))) { |
| nsk_jvmti_setFailStatus(); |
| } else { |
| NSK_DISPLAY0("setTag: the tag was set for checked thread."); |
| } |
| } |
| |
| 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; |
| |
| do { |
| jthread localRefThread; |
| jthread globalRefThread; |
| jfieldID fid; |
| |
| NSK_DISPLAY1("Find debugee class: %s\n", DEBUGEE_SIGNATURE); |
| debugeeClass = nsk_jvmti_classBySignature(DEBUGEE_SIGNATURE); |
| if (debugeeClass == NULL) { |
| nsk_jvmti_setFailStatus(); |
| break; |
| } |
| |
| if (!NSK_JNI_VERIFY(jni, (fid = |
| NSK_CPP_STUB4(GetStaticFieldID, jni, |
| debugeeClass, |
| "thread", |
| THREAD_CLS_SIGNATURE)) != NULL )) { |
| nsk_jvmti_setFailStatus(); |
| break; |
| } |
| |
| if (!NSK_JNI_VERIFY(jni, (localRefThread = |
| NSK_CPP_STUB3(GetStaticObjectField, jni, |
| debugeeClass, |
| fid )) != NULL )) { |
| NSK_COMPLAIN0("GetStaticObjectField returned NULL for 'thread' field value\n\n"); |
| nsk_jvmti_setFailStatus(); |
| break; |
| } |
| |
| if (!NSK_JNI_VERIFY(jni, (globalRefThread = |
| NSK_CPP_STUB2(NewGlobalRef, jni, localRefThread)) != NULL)) |
| return; |
| |
| NSK_DISPLAY0("Calling IterateOverReachableObjects\n"); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB5(IterateOverReachableObjects, jvmti, |
| heapRootCallback, |
| stackReferenceCallback, |
| objectReferenceCallback, |
| NULL /*user_data*/))) { |
| nsk_jvmti_setFailStatus(); |
| break; |
| } |
| |
| if (rootJNILocalCount != 1) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN1("JVMTI_HEAP_ROOT_JNI_LOCAL root kind was returned wrong %d times " |
| "while iteration with IterateOverReachableObjects.\n\n", rootJNILocalCount ); |
| } |
| |
| if (rootJNIGlobalCount != 1) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN1("JVMTI_HEAP_ROOT_JNI_GLOBAL root kind was returned wrong %d times " |
| "while iteration with IterateOverReachableObjects.\n\n", rootJNIGlobalCount ); |
| } |
| |
| if (rootThreadCount != 1) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN1("JVMTI_HEAP_ROOT_THREAD root kind was returned wrong %d times " |
| "while iteration with IterateOverReachableObjects.\n\n", rootThreadCount ); |
| } |
| |
| } while (0); |
| |
| NSK_DISPLAY0("Let debugee to finish\n"); |
| if (!NSK_VERIFY(nsk_jvmti_resumeSync())) |
| return; |
| } |
| |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_ap06t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_ap06t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_ap06t001(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_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_tag_objects) |
| NSK_DISPLAY0("Warning: tagging objects is not implemented\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 |