| /* |
| * 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 <string.h> |
| #include "jvmti.h" |
| #include "agent_common.h" |
| #include "jni_tools.h" |
| #include "jvmti_tools.h" |
| #include "JVMTITools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* ============================================================================= */ |
| |
| /* scaffold objects */ |
| static JNIEnv* jni = NULL; |
| static jvmtiEnv *jvmti = NULL; |
| static jlong timeout = 0; |
| static jrawMonitorID syncLock = NULL; |
| |
| /* constant names */ |
| #define JVMTI_EVENT_COUNT (int)(JVMTI_MAX_EVENT_TYPE_VAL - JVMTI_MIN_EVENT_TYPE_VAL + 1) |
| #define EXPECTED_CLASS_NAME "Lnsk/jvmti/scenarios/events/EM01/em01t001a;" |
| #define CLASS_LOADER_COUNT_PARAM "classLoaderCount" |
| |
| static int eventCount[JVMTI_EVENT_COUNT]; |
| |
| static int classLoaderCount = 0; |
| |
| static jvmtiPhase currentPhase; |
| |
| /* ============================================================================= */ |
| |
| static void |
| changeCount(jvmtiEvent event) { |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorEnter, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| eventCount[event - JVMTI_MIN_EVENT_TYPE_VAL]++; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorExit, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| } |
| |
| /* ============================================================================= */ |
| |
| static void |
| showEventStatistics() { |
| int i; |
| const char* str; |
| |
| NSK_DISPLAY0("Event statistics\n"); |
| NSK_DISPLAY0("----------------\n"); |
| for (i = 0; i < JVMTI_EVENT_COUNT; i++) { |
| if (eventCount[i] > 0) { |
| str = TranslateEvent((jvmtiEvent)(i+JVMTI_MIN_EVENT_TYPE_VAL)); |
| NSK_DISPLAY2("%-40s %7d\n", str, eventCount[i]); |
| } |
| } |
| } |
| |
| /* ========================================================================== */ |
| |
| /* callbacks */ |
| void |
| classEventsHandler(jvmtiEvent event, jvmtiEnv* jvmti_env, JNIEnv* jni_env, |
| jclass klass) { |
| |
| char *className; |
| char *generic; |
| jvmtiPhase phase; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(GetClassSignature, jvmti_env, klass, |
| &className, &generic))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (strcmp(className, EXPECTED_CLASS_NAME) == 0) { |
| changeCount(event); |
| NSK_DISPLAY3("%25s(%4d)>>\tclass: %s\n", |
| TranslateEvent(event), |
| eventCount[event - JVMTI_MIN_EVENT_TYPE_VAL], |
| className); |
| } |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase, jvmti_env, &phase))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| if (phase != currentPhase) { |
| NSK_DISPLAY2("Unexpected phase %s, but supposed %s", |
| TranslatePhase(phase), TranslatePhase(currentPhase)); |
| } |
| |
| if ((phase != JVMTI_PHASE_LIVE) && (phase != JVMTI_PHASE_START)) { |
| NSK_COMPLAIN4("%25s was sent during %s(%d)\n\tclass: %s\n", |
| TranslateEvent(event), |
| TranslatePhase(phase), |
| phase, |
| className); |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)className))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| if (generic != NULL) |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)generic))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| void |
| threadEventHandler(jvmtiEvent event, jvmtiEnv* jvmti_env, JNIEnv* jni_env, |
| jthread thread) { |
| jclass classObject; |
| char *className; |
| char *generic; |
| jvmtiPhase phase; |
| |
| |
| if (!NSK_JNI_VERIFY(jni_env, (classObject = |
| NSK_CPP_STUB2(GetObjectClass, jni_env, thread)) != NULL)) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(GetClassSignature, jvmti_env, classObject, |
| &className, &generic))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (strcmp(className, EXPECTED_CLASS_NAME) == 0) { |
| changeCount(event); |
| NSK_DISPLAY3("%25s(%4d)>>\tclass: %s\n", |
| TranslateEvent(event), |
| eventCount[event - JVMTI_MIN_EVENT_TYPE_VAL], |
| className); |
| } |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase, jvmti_env, &phase))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| if (phase != currentPhase) { |
| NSK_DISPLAY2("Unexpected phase %s, but supposed %s", |
| TranslatePhase(phase), TranslatePhase(currentPhase)); |
| } |
| |
| if ((phase != JVMTI_PHASE_START) && (phase != JVMTI_PHASE_LIVE)) { |
| NSK_COMPLAIN4("%25s was sent during %s(%d)\n\tclass: %s\n", |
| TranslateEvent(event), |
| TranslatePhase(phase), |
| phase, |
| className); |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)className))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| if (generic != NULL) |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)generic))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| JNIEXPORT void JNICALL |
| cbVMStart(jvmtiEnv* jvmti_env, JNIEnv* jni_env) { |
| |
| jvmtiPhase phase; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase, jvmti_env, &phase))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| if ((phase != JVMTI_PHASE_START) && (phase != JVMTI_PHASE_LIVE)) { |
| NSK_COMPLAIN3("%25s was sent during %s(%d)\n", |
| TranslateEvent(JVMTI_EVENT_VM_START), |
| TranslatePhase(phase), |
| phase); |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| changeCount(JVMTI_EVENT_VM_START); |
| currentPhase = JVMTI_PHASE_START; |
| } |
| |
| JNIEXPORT void JNICALL |
| cbVMInit(jvmtiEnv* jvmti_env, JNIEnv* jni_env, jthread thread) { |
| |
| jvmtiPhase phase; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase, jvmti_env, &phase))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| if (phase != JVMTI_PHASE_LIVE) { |
| NSK_COMPLAIN3("%25s was sent during %s(%d)\n", |
| TranslateEvent(JVMTI_EVENT_VM_INIT), |
| TranslatePhase(phase), |
| phase); |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| changeCount(JVMTI_EVENT_VM_INIT); |
| currentPhase = JVMTI_PHASE_LIVE; |
| } |
| |
| JNIEXPORT void JNICALL |
| cbVMDeath(jvmtiEnv* jvmti_env, JNIEnv* jni_env) { |
| |
| jvmtiPhase phase; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase, jvmti_env, &phase))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| if (phase != JVMTI_PHASE_LIVE) { |
| NSK_COMPLAIN3("%25s was sent during %s(%d)\n", |
| TranslateEvent(JVMTI_EVENT_VM_INIT), |
| TranslatePhase(phase), |
| phase); |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| currentPhase = JVMTI_PHASE_DEAD; |
| changeCount(JVMTI_EVENT_VM_DEATH); |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(DestroyRawMonitor, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| } |
| |
| JNIEXPORT void JNICALL |
| cbClassLoad(jvmtiEnv* jvmti_env, JNIEnv* jni_env, jthread thread, |
| jclass klass) { |
| |
| classEventsHandler(JVMTI_EVENT_CLASS_LOAD, jvmti_env, jni_env, klass); |
| } |
| |
| JNIEXPORT void JNICALL |
| cbClassPrepare(jvmtiEnv* jvmti_env, JNIEnv* jni_env, jthread thread, |
| jclass klass) { |
| |
| classEventsHandler(JVMTI_EVENT_CLASS_PREPARE, jvmti_env, jni_env, klass); |
| } |
| |
| JNIEXPORT void JNICALL |
| cbThreadStart(jvmtiEnv* jvmti_env, JNIEnv* jni_env, jthread thread) { |
| |
| threadEventHandler(JVMTI_EVENT_THREAD_START, jvmti_env, jni_env, thread); |
| } |
| |
| JNIEXPORT void JNICALL |
| cbThreadEnd(jvmtiEnv* jvmti_env, JNIEnv* jni_env, jthread thread) { |
| |
| threadEventHandler(JVMTI_EVENT_THREAD_END, jvmti_env, jni_env, thread); |
| } |
| |
| /* ============================================================================= */ |
| |
| static int |
| enableEvent(jvmtiEventMode enable, jvmtiEvent event) { |
| NSK_DISPLAY1("enabling %s\n", TranslateEvent(event)); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, enable, |
| event, NULL))) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_FALSE; |
| } |
| |
| return NSK_TRUE; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** |
| * Testcase: check tested events. |
| * - check if expected events received for each method |
| * |
| * Returns NSK_TRUE if test may continue; or NSK_FALSE for test break. |
| */ |
| int checkEvents(int step) { |
| |
| int i; |
| jvmtiEvent curr; |
| int result = NSK_TRUE; |
| int mustBeChecked; |
| |
| showEventStatistics(); |
| |
| for (i = 0; i < JVMTI_EVENT_COUNT; i++) { |
| |
| curr = i + JVMTI_MIN_EVENT_TYPE_VAL; |
| switch (step) { |
| case 1: |
| mustBeChecked = ((curr == JVMTI_EVENT_CLASS_LOAD) |
| || (curr == JVMTI_EVENT_CLASS_PREPARE)); |
| break; |
| |
| case 2: |
| mustBeChecked = ((curr == JVMTI_EVENT_CLASS_LOAD) |
| || (curr == JVMTI_EVENT_CLASS_PREPARE) |
| || (curr == JVMTI_EVENT_THREAD_START) |
| || (curr == JVMTI_EVENT_THREAD_END)); |
| break; |
| default: |
| mustBeChecked = NSK_TRUE; |
| } |
| |
| if (mustBeChecked && eventCount[i] != classLoaderCount) { |
| nsk_jvmti_setFailStatus(); |
| NSK_COMPLAIN3("Unexpected number of %s events %7d\n\texpected value %d\n", |
| TranslateEvent(curr), |
| eventCount[i], |
| classLoaderCount); |
| nsk_jvmti_setFailStatus(); |
| result = NSK_FALSE; |
| } |
| } |
| |
| return result; |
| } |
| |
| /* ============================================================================= */ |
| |
| static int |
| setCallBacks() { |
| jvmtiEventCallbacks eventCallbacks; |
| memset(&eventCallbacks, 0, sizeof(eventCallbacks)); |
| |
| eventCallbacks.VMStart = cbVMStart; |
| eventCallbacks.VMInit = cbVMInit; |
| eventCallbacks.VMDeath = cbVMDeath; |
| eventCallbacks.ClassLoad = cbClassLoad; |
| eventCallbacks.ClassPrepare = cbClassPrepare; |
| eventCallbacks.ThreadStart = cbThreadStart; |
| eventCallbacks.ThreadEnd = cbThreadEnd; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(SetEventCallbacks, jvmti, |
| &eventCallbacks, |
| sizeof(eventCallbacks)))) |
| return NSK_FALSE; |
| |
| return NSK_TRUE; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent algorithm. */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* agentJNI, void* arg) { |
| |
| NSK_DISPLAY0("Wait for debuggee to become ready\n"); |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| NSK_DISPLAY0("Let debuggee to load class\n"); |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| /* check only CLASS_LOAD and CLASS_PREPARE events */ |
| if (!checkEvents(1)) { |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| NSK_DISPLAY0("Let debuggee to start threads\n"); |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| NSK_DISPLAY0("check event 2\n"); |
| if (!checkEvents(2)) { |
| nsk_jvmti_setFailStatus(); |
| NSK_DISPLAY0("fail\n"); |
| } |
| |
| NSK_DISPLAY0("Let debuggee to finish\n"); |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_em01t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_em01t001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_em01t001(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| |
| currentPhase = JVMTI_PHASE_ONLOAD; |
| |
| if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) |
| return JNI_ERR; |
| |
| timeout = nsk_jvmti_getWaitTime() * 60 * 1000; |
| classLoaderCount = nsk_jvmti_findOptionIntValue(CLASS_LOADER_COUNT_PARAM, 10); |
| |
| if (!NSK_VERIFY((jvmti = nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) |
| return JNI_ERR; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(CreateRawMonitor, jvmti, "_syncLock", &syncLock))) { |
| nsk_jvmti_setFailStatus(); |
| return JNI_ERR; |
| } |
| |
| if (!setCallBacks()) { |
| return JNI_ERR; |
| } |
| |
| if (!enableEvent(JVMTI_ENABLE, JVMTI_EVENT_CLASS_LOAD) |
| || !enableEvent(JVMTI_ENABLE, JVMTI_EVENT_CLASS_PREPARE) |
| || !enableEvent(JVMTI_ENABLE, JVMTI_EVENT_THREAD_START) |
| || !enableEvent(JVMTI_ENABLE, JVMTI_EVENT_THREAD_END) |
| || !enableEvent(JVMTI_ENABLE, JVMTI_EVENT_VM_START) |
| || !enableEvent(JVMTI_ENABLE, JVMTI_EVENT_VM_INIT) |
| || !enableEvent(JVMTI_ENABLE, JVMTI_EVENT_VM_DEATH) |
| ) { |
| NSK_COMPLAIN0("Events could not be enabled"); |
| nsk_jvmti_setFailStatus(); |
| return JNI_ERR; |
| } |
| |
| if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
| return JNI_ERR; |
| |
| currentPhase = JVMTI_PHASE_PRIMORDIAL; |
| |
| return JNI_OK; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
