| /* |
| * 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 jvmtiEnv *jvmti = NULL; |
| static jlong timeout = 0; |
| static jrawMonitorID syncLock = NULL; |
| |
| /* constant names */ |
| #define STEP_NUMBER 3 |
| #define NUMBER_OF_INVOCATIONS 1000 |
| #define JVMTI_EVENT_COUNT (int)(JVMTI_MAX_EVENT_TYPE_VAL - JVMTI_MIN_EVENT_TYPE_VAL + 1) |
| |
| static int eventCount[JVMTI_EVENT_COUNT]; |
| static int newEventCount[JVMTI_EVENT_COUNT]; |
| |
| /* ============================================================================= */ |
| |
| static void |
| showEventStatistics(int step) { |
| int i; |
| const char* str; |
| int *currentCounts = (step == 1) ? &eventCount[0] : &newEventCount[0]; |
| |
| NSK_DISPLAY0("\n"); |
| NSK_DISPLAY1("Event statistics for %d step:\n", step); |
| NSK_DISPLAY0("-----------------------------\n"); |
| for (i = 0; i < JVMTI_EVENT_COUNT; i++) { |
| if (currentCounts[i] > 0) { |
| str = TranslateEvent((jvmtiEvent)(i+JVMTI_MIN_EVENT_TYPE_VAL)); |
| NSK_DISPLAY2("%-40s %7d\n", str, currentCounts[i]); |
| } |
| } |
| } |
| |
| /* ========================================================================== */ |
| |
| int checkEvents(int step) { |
| int i; |
| jvmtiEvent curr; |
| int result = NSK_TRUE; |
| int *currentCounts; |
| int isExpected = 0; |
| |
| switch (step) { |
| case 1: |
| currentCounts = &eventCount[0]; |
| break; |
| |
| case 2: |
| case 3: |
| currentCounts = &newEventCount[0]; |
| break; |
| |
| default: |
| NSK_COMPLAIN1("Unexpected step no: %d\n", step); |
| return NSK_FALSE; |
| } |
| |
| for (i = 0; i < JVMTI_EVENT_COUNT; i++) { |
| |
| curr = i + JVMTI_MIN_EVENT_TYPE_VAL; |
| |
| switch (step) { |
| case 1: |
| isExpected = ((curr == JVMTI_EVENT_VM_INIT) |
| || (curr == JVMTI_EVENT_METHOD_ENTRY) |
| || (curr == JVMTI_EVENT_METHOD_EXIT)); |
| break; |
| |
| case 2: |
| isExpected = ((curr == JVMTI_EVENT_METHOD_ENTRY) |
| || (curr == JVMTI_EVENT_METHOD_EXIT)); |
| break; |
| |
| case 3: |
| isExpected = (curr == JVMTI_EVENT_VM_DEATH); |
| break; |
| } |
| |
| if (isExpected) { |
| if (curr == JVMTI_EVENT_VM_INIT || curr == JVMTI_EVENT_VM_DEATH) { |
| if (currentCounts[i] < 1) { |
| NSK_COMPLAIN2("Unexpected events number %7d for %s\n\texpected value must be greater than 1\n", |
| currentCounts[i], |
| TranslateEvent(curr)); |
| result = NSK_FALSE; |
| } |
| } else { |
| if (currentCounts[i] != NUMBER_OF_INVOCATIONS) { |
| NSK_COMPLAIN3("Unexpected number of %s events %d, expected value is %d\n", |
| TranslateEvent(curr), |
| currentCounts[i], |
| NUMBER_OF_INVOCATIONS); |
| result = NSK_FALSE; |
| } |
| } |
| } else { |
| |
| if (currentCounts[i] > 0) { |
| NSK_COMPLAIN2("Unexpected event %s was sent %d times\n", |
| TranslateEvent(curr), |
| currentCounts[i]); |
| result = NSK_FALSE; |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| static void |
| changeCount(jvmtiEvent event, int *currentCounts) { |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorEnter, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| currentCounts[event - JVMTI_MIN_EVENT_TYPE_VAL]++; |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorExit, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| } |
| |
| /* ============================================================================= */ |
| |
| /* callbacks */ |
| JNIEXPORT void JNICALL |
| cbVMInit(jvmtiEnv* jvmti, JNIEnv* jni_env, jthread thread) { |
| changeCount(JVMTI_EVENT_VM_INIT, &eventCount[0]); |
| } |
| |
| JNIEXPORT void JNICALL |
| cbVMDeath(jvmtiEnv* jvmti, JNIEnv* jni_env) { |
| changeCount(JVMTI_EVENT_VM_DEATH, &newEventCount[0]); |
| showEventStatistics(STEP_NUMBER); |
| if (!checkEvents(STEP_NUMBER)) |
| nsk_jvmti_setFailStatus(); |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(DestroyRawMonitor, jvmti, syncLock))) |
| nsk_jvmti_setFailStatus(); |
| |
| } |
| |
| void JNICALL |
| cbException(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method, jlocation location, jobject exception, |
| jmethodID catch_method, jlocation catch_location) { |
| |
| changeCount(JVMTI_EVENT_EXCEPTION, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbExceptionCatch(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method, jlocation location, jobject exception) { |
| |
| changeCount(JVMTI_EVENT_EXCEPTION_CATCH, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbSingleStep(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method, jlocation location) { |
| |
| changeCount(JVMTI_EVENT_SINGLE_STEP, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbFramePop(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method, jboolean was_popped_by_exception) { |
| changeCount(JVMTI_EVENT_FRAME_POP, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbBreakpoint(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method, jlocation location) { |
| changeCount(JVMTI_EVENT_BREAKPOINT, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbFieldAccess(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method, jlocation location, jclass field_klass, |
| jobject object, jfieldID field) { |
| changeCount(JVMTI_EVENT_FIELD_ACCESS, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbFieldModification(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method, jlocation location, jclass field_klass, |
| jobject object, jfieldID field, char signature_type, |
| jvalue new_value) { |
| changeCount(JVMTI_EVENT_FIELD_MODIFICATION, &eventCount[0]); |
| } |
| |
| void handler1(jvmtiEnv *jvmti_env, jvmtiEvent event, jmethodID method) { |
| |
| char *name; |
| char *sign; |
| char *genc; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB5( |
| GetMethodName, jvmti_env, method, &name, &sign, &genc))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (!strncmp(name,"javaMethod", 8)) { |
| changeCount(event, &eventCount[0]); |
| } |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)name))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)sign))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| if (genc != NULL) |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)genc))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| void JNICALL |
| cbMethodEntry(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method) { |
| |
| handler1(jvmti_env, JVMTI_EVENT_METHOD_ENTRY, method); |
| } |
| |
| void JNICALL |
| cbMethodExit(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method, jboolean was_popped_by_exception, |
| jvalue return_value) { |
| |
| handler1(jvmti_env, JVMTI_EVENT_METHOD_EXIT, method); |
| } |
| |
| void handler2(jvmtiEnv *jvmti_env, jvmtiEvent event, jmethodID method) { |
| |
| char *name; |
| char *sign; |
| char *genc; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB5( |
| GetMethodName, jvmti_env, method, &name, &sign, &genc))) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| if (!strncmp(name,"javaMethod", 8)) { |
| changeCount(event, &newEventCount[0]); |
| } |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)name))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)sign))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| if (genc != NULL) |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*)genc))) { |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| void JNICALL |
| cbNewMethodEntry(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method) { |
| |
| handler2(jvmti_env, JVMTI_EVENT_METHOD_ENTRY, method); |
| } |
| |
| void JNICALL |
| cbNewMethodExit(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jmethodID method, jboolean was_popped_by_exception, |
| jvalue return_value) { |
| |
| handler2(jvmti_env, JVMTI_EVENT_METHOD_EXIT, method); |
| } |
| |
| void JNICALL |
| cbNativeMethodBind(jvmtiEnv *jvmti_env, JNIEnv* jni_env,jthread thread, |
| jmethodID method, void* address, void** new_address_ptr) { |
| changeCount(JVMTI_EVENT_NATIVE_METHOD_BIND, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbMonitorWait(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jobject object, jlong tout) { |
| |
| changeCount(JVMTI_EVENT_MONITOR_WAIT, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbMonitorWaited(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jobject object, jboolean timed_out) { |
| |
| changeCount(JVMTI_EVENT_MONITOR_WAITED, &eventCount[0]); |
| } |
| |
| JNIEXPORT void JNICALL |
| cbMonitorContendedEnter(jvmtiEnv* jvmti, JNIEnv* jni_env, jthread thread, |
| jobject object) { |
| |
| changeCount(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbMonitorContendedEntered(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jobject object) { |
| |
| changeCount(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbCompiledMethodLoad(jvmtiEnv *jvmti_env, jmethodID method, jint code_size, |
| const void* code_addr, jint map_length, |
| const jvmtiAddrLocationMap* map, const void* compile_info) { |
| changeCount(JVMTI_EVENT_COMPILED_METHOD_LOAD, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbCompiledMethodUnload(jvmtiEnv *jvmti_env, jmethodID method, |
| const void* code_addr) { |
| changeCount(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbGarbageCollectionStart(jvmtiEnv *jvmti_env) { |
| changeCount(JVMTI_EVENT_GARBAGE_COLLECTION_START, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbGarbageCollectionFinish(jvmtiEnv *jvmti_env) { |
| changeCount(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbObjectFree(jvmtiEnv *jvmti_env, jlong tag) { |
| |
| changeCount(JVMTI_EVENT_OBJECT_FREE, &eventCount[0]); |
| } |
| |
| void JNICALL |
| cbVMObjectAlloc(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, |
| jobject object, jclass object_klass, jlong size) { |
| |
| changeCount(JVMTI_EVENT_VM_OBJECT_ALLOC, &eventCount[0]); |
| } |
| |
| /* ============================================================================= */ |
| |
| static int enableEvent(jvmtiEvent event) { |
| |
| if (nsk_jvmti_isOptionalEvent(event) |
| && (event != JVMTI_EVENT_METHOD_ENTRY) |
| && (event != JVMTI_EVENT_METHOD_EXIT)) { |
| if (!NSK_JVMTI_VERIFY_CODE(JVMTI_ERROR_MUST_POSSESS_CAPABILITY, |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, |
| JVMTI_ENABLE, event, NULL))) { |
| NSK_COMPLAIN1("Unexpected error enabling %s\n", |
| TranslateEvent(event)); |
| return NSK_FALSE; |
| } |
| } else { |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB4(SetEventNotificationMode, jvmti, |
| JVMTI_ENABLE, event, NULL))) { |
| NSK_COMPLAIN1("Unexpected error enabling %s\n", |
| TranslateEvent(event)); |
| return NSK_FALSE; |
| } |
| } |
| |
| return NSK_TRUE; |
| } |
| |
| /** |
| * Enable or disable tested events. |
| */ |
| static int enableEventList() { |
| |
| int i, result; |
| |
| result = enableEvent(JVMTI_EVENT_VM_INIT); |
| |
| result = result && enableEvent(JVMTI_EVENT_VM_DEATH); |
| |
| /* enabling optional events */ |
| for (i = 0; i < JVMTI_EVENT_COUNT; i++) { |
| jvmtiEvent event = (jvmtiEvent)(i+JVMTI_MIN_EVENT_TYPE_VAL); |
| |
| if (nsk_jvmti_isOptionalEvent(event)) |
| result = result && enableEvent(event); |
| } |
| |
| if (result == NSK_FALSE) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_FALSE; |
| } |
| |
| return NSK_TRUE; |
| } |
| |
| /* ============================================================================= */ |
| |
| static int |
| setCallBacks(int step) { |
| |
| int i; |
| |
| jvmtiEventCallbacks eventCallbacks; |
| memset(&eventCallbacks, 0, sizeof(eventCallbacks)); |
| |
| switch (step) { |
| case 1: |
| for (i = 0; i < JVMTI_EVENT_COUNT; i++) { |
| eventCount[i] = 0; |
| } |
| |
| eventCallbacks.VMInit = cbVMInit; |
| eventCallbacks.Exception = cbException; |
| eventCallbacks.ExceptionCatch = cbExceptionCatch; |
| eventCallbacks.SingleStep = cbSingleStep; |
| eventCallbacks.FramePop = cbFramePop; |
| eventCallbacks.Breakpoint = cbBreakpoint; |
| eventCallbacks.FieldAccess = cbFieldAccess; |
| eventCallbacks.FieldModification = cbFieldModification; |
| eventCallbacks.MethodEntry = cbMethodEntry; |
| eventCallbacks.MethodExit = cbMethodExit; |
| eventCallbacks.NativeMethodBind = cbNativeMethodBind; |
| eventCallbacks.CompiledMethodLoad = cbCompiledMethodLoad; |
| eventCallbacks.CompiledMethodUnload = cbCompiledMethodUnload; |
| eventCallbacks.MonitorWait = cbMonitorWait; |
| eventCallbacks.MonitorWaited = cbMonitorWaited; |
| eventCallbacks.MonitorContendedEnter = cbMonitorContendedEnter; |
| eventCallbacks.MonitorContendedEntered = cbMonitorContendedEntered; |
| eventCallbacks.GarbageCollectionStart = cbGarbageCollectionStart; |
| eventCallbacks.GarbageCollectionFinish = cbGarbageCollectionFinish; |
| eventCallbacks.ObjectFree = cbObjectFree; |
| eventCallbacks.VMObjectAlloc = cbVMObjectAlloc; |
| break; |
| |
| case 2: |
| for (i = 0; i < JVMTI_EVENT_COUNT; i++) { |
| newEventCount[i] = 0; |
| } |
| |
| eventCallbacks.MethodEntry = cbNewMethodEntry; |
| eventCallbacks.MethodExit = cbNewMethodExit; |
| break; |
| |
| case 3: |
| for (i = 0; i < JVMTI_EVENT_COUNT; i++) { |
| newEventCount[i] = 0; |
| } |
| |
| eventCallbacks.VMDeath = cbVMDeath; |
| break; |
| |
| } |
| 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) { |
| |
| int i; |
| |
| for (i = 1; i <= STEP_NUMBER; i++) { |
| |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| if (i < STEP_NUMBER) { |
| showEventStatistics(i); |
| if (!checkEvents(i)) |
| nsk_jvmti_setFailStatus(); |
| |
| if (!setCallBacks(i + 1)) { |
| return; |
| } |
| } |
| |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| } |
| |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_em02t009(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_em02t009(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_em02t009(JavaVM *jvm, char *options, void *reserved) { |
| return JNI_VERSION_1_8; |
| } |
| #endif |
| jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { |
| |
| 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; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(CreateRawMonitor, jvmti, "_syncLock", &syncLock))) { |
| nsk_jvmti_setFailStatus(); |
| return JNI_ERR; |
| } |
| |
| { |
| jvmtiCapabilities caps; |
| memset(&caps, 0, sizeof(caps)); |
| |
| caps.can_generate_method_entry_events = 1; |
| caps.can_generate_method_exit_events = 1; |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps))) |
| return JNI_ERR; |
| } |
| |
| if (!setCallBacks(1)) { |
| return JNI_ERR; |
| } |
| |
| if (!enableEventList()) { |
| return JNI_ERR; |
| } |
| |
| if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
| return JNI_ERR; |
| |
| return JNI_OK; |
| } |
| |
| /* ============================================================================= */ |
| |
| |
| #ifdef __cplusplus |
| } |
| #endif |
