| /* |
| * 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 JNIEnv* jni = NULL; |
| static jvmtiEnv *jvmti = NULL; |
| static jlong timeout = 0; |
| |
| /* constants */ |
| #define THREADS_COUNT 6 |
| #define EVENTS_COUNT 2 |
| #define MAX_NAME_LENGTH 100 |
| #define MAX_STACK_SIZE 100 |
| |
| /* tested events */ |
| static jvmtiEvent eventsList[EVENTS_COUNT] = { |
| JVMTI_EVENT_COMPILED_METHOD_LOAD, |
| JVMTI_EVENT_COMPILED_METHOD_UNLOAD |
| }; |
| |
| /* thread description structure */ |
| typedef struct { |
| char threadName[MAX_NAME_LENGTH]; |
| char methodName[MAX_NAME_LENGTH]; |
| char methodSig[MAX_NAME_LENGTH]; |
| jthread thread; |
| jclass cls; |
| jmethodID method; |
| jlocation location; |
| int methodCompiled; |
| } ThreadDesc; |
| |
| /* descriptions of tested threads */ |
| static ThreadDesc threadsDesc[THREADS_COUNT] = { |
| {"threadRunning", "testedMethod", "(ZI)V", NULL, NULL, NULL, NSK_JVMTI_INVALID_JLOCATION, NSK_FALSE}, |
| {"threadEntering", "testedMethod", "(ZI)V", NULL, NULL, NULL, NSK_JVMTI_INVALID_JLOCATION, NSK_FALSE}, |
| {"threadWaiting", "testedMethod", "(ZI)V", NULL, NULL, NULL, NSK_JVMTI_INVALID_JLOCATION, NSK_FALSE}, |
| {"threadSleeping", "testedMethod", "(ZI)V", NULL, NULL, NULL, NSK_JVMTI_INVALID_JLOCATION, NSK_FALSE}, |
| {"threadRunningInterrupted", "testedMethod", "(ZI)V", NULL, NULL, NULL, NSK_JVMTI_INVALID_JLOCATION, NSK_FALSE}, |
| {"threadRunningNative", "testedMethod", "(ZI)V", NULL, NULL, NULL, NSK_JVMTI_INVALID_JLOCATION, NSK_FALSE} |
| }; |
| |
| /* indexes of known threads */ |
| static const int interruptedThreadIndex = THREADS_COUNT - 2; |
| static const int nativeThreadIndex = THREADS_COUNT - 1; |
| |
| /* ============================================================================= */ |
| |
| /* testcase(s) */ |
| static int prepare(); |
| static int generateEvents(); |
| static int checkThreads(int suspended, const char* kind); |
| static int suspendThreadsIndividually(int suspend); |
| static int clean(); |
| |
| /* ============================================================================= */ |
| |
| /** Agent algorithm. */ |
| static void JNICALL |
| agentProc(jvmtiEnv* jvmti, JNIEnv* agentJNI, void* arg) { |
| jni = agentJNI; |
| |
| NSK_DISPLAY0("Wait for debuggee to become ready\n"); |
| if (!nsk_jvmti_waitForSync(timeout)) |
| return; |
| |
| { |
| NSK_DISPLAY0("Prepare data\n"); |
| if (!prepare()) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| |
| NSK_DISPLAY0("Generate missed events\n"); |
| if (!generateEvents()) |
| return; |
| |
| NSK_DISPLAY0("Testcase #1: check stack frames of not suspended threads\n"); |
| if (!checkThreads(NSK_FALSE, "not suspended")) |
| return; |
| |
| NSK_DISPLAY0("Suspend each thread\n"); |
| if (!suspendThreadsIndividually(NSK_TRUE)) |
| return; |
| |
| NSK_DISPLAY0("Testcase #2: check stack frames of suspended threads\n"); |
| if (!checkThreads(NSK_TRUE, "suspended")) |
| return; |
| |
| NSK_DISPLAY0("Resume each thread\n"); |
| if (!suspendThreadsIndividually(NSK_FALSE)) |
| return; |
| |
| NSK_DISPLAY0("Testcase #3: check stack frames of resumed threads\n"); |
| if (!checkThreads(NSK_FALSE, "resumed")) |
| return; |
| |
| NSK_DISPLAY0("Clean data\n"); |
| if (!clean()) { |
| nsk_jvmti_setFailStatus(); |
| return; |
| } |
| } |
| |
| NSK_DISPLAY0("Let debuggee to finish\n"); |
| if (!nsk_jvmti_resumeSync()) |
| return; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** |
| * Generate missed events (COMPILED_METHOD_LOAD only). |
| */ |
| static int generateEvents() { |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(GenerateEvents, jvmti, JVMTI_EVENT_COMPILED_METHOD_LOAD))) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_FALSE; |
| } |
| return NSK_TRUE; |
| } |
| |
| /** |
| * Prepare data. |
| * - clean threads list |
| * - get all live threads |
| * - get threads name |
| * - find tested threads |
| * - make global refs |
| * - enable events |
| */ |
| static int prepare() { |
| jthread *allThreadsList = NULL; |
| jint allThreadsCount = 0; |
| int found = 0; |
| int i; |
| |
| NSK_DISPLAY1("Find tested threads: %d\n", THREADS_COUNT); |
| |
| /* clean threads list */ |
| for (i = 0; i < THREADS_COUNT; i++) { |
| threadsDesc[i].thread = (jthread)NULL; |
| threadsDesc[i].method = (jmethodID)NULL; |
| threadsDesc[i].location = NSK_JVMTI_INVALID_JLOCATION; |
| threadsDesc[i].methodCompiled = NSK_FALSE; |
| } |
| |
| /* get all live threads */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetAllThreads, jvmti, &allThreadsCount, &allThreadsList))) |
| return NSK_FALSE; |
| |
| if (!NSK_VERIFY(allThreadsCount > 0 && allThreadsList != NULL)) |
| return NSK_FALSE; |
| |
| /* find tested threads */ |
| for (i = 0; i < allThreadsCount; i++) { |
| jvmtiThreadInfo threadInfo; |
| |
| if (!NSK_VERIFY(allThreadsList[i] != NULL)) |
| return NSK_FALSE; |
| |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetThreadInfo, jvmti, allThreadsList[i], &threadInfo))) |
| return NSK_FALSE; |
| |
| if (threadInfo.name != NULL) { |
| int j; |
| |
| for (j = 0; j < THREADS_COUNT; j++) { |
| if (strcmp(threadInfo.name, threadsDesc[j].threadName) == 0) { |
| threadsDesc[j].thread = allThreadsList[i]; |
| NSK_DISPLAY3(" thread #%d (%s): 0x%p\n", |
| j, threadInfo.name, (void*)threadsDesc[j].thread); |
| } |
| } |
| } |
| } |
| |
| /* deallocate all threads list */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)allThreadsList))) |
| return NSK_FALSE; |
| |
| /* check if all tested threads found */ |
| found = 0; |
| for (i = 0; i < THREADS_COUNT; i++) { |
| if (threadsDesc[i].thread == NULL) { |
| NSK_COMPLAIN2("Not found tested thread #%d (%s)\n", i, threadsDesc[i].threadName); |
| } else { |
| found++; |
| } |
| } |
| |
| if (found < THREADS_COUNT) |
| return NSK_FALSE; |
| |
| /* get threads class and frame method */ |
| NSK_DISPLAY0("Find tested methods:\n"); |
| for (i = 0; i < THREADS_COUNT; i++) { |
| |
| if (!NSK_JNI_VERIFY(jni, (threadsDesc[i].cls = |
| NSK_CPP_STUB2(GetObjectClass, jni, threadsDesc[i].thread)) != NULL)) |
| return NSK_FALSE; |
| |
| if (!NSK_JNI_VERIFY(jni, (threadsDesc[i].method = |
| NSK_CPP_STUB4(GetMethodID, jni, threadsDesc[i].cls, |
| threadsDesc[i].methodName, threadsDesc[i].methodSig)) != NULL)) |
| return NSK_FALSE; |
| |
| NSK_DISPLAY4(" thread #%d (%s): 0x%p (%s)\n", |
| i, threadsDesc[i].threadName, |
| (void*)threadsDesc[i].method, |
| threadsDesc[i].methodName); |
| } |
| |
| /* make global refs */ |
| for (i = 0; i < THREADS_COUNT; i++) { |
| if (!NSK_JNI_VERIFY(jni, (threadsDesc[i].thread = (jthread) |
| NSK_CPP_STUB2(NewGlobalRef, jni, threadsDesc[i].thread)) != NULL)) |
| return NSK_FALSE; |
| if (!NSK_JNI_VERIFY(jni, (threadsDesc[i].cls = (jclass) |
| NSK_CPP_STUB2(NewGlobalRef, jni, threadsDesc[i].cls)) != NULL)) |
| return NSK_FALSE; |
| } |
| |
| NSK_DISPLAY0("Enable tested events\n"); |
| if (!nsk_jvmti_enableEvents(JVMTI_ENABLE, EVENTS_COUNT, eventsList, NULL)) |
| return NSK_FALSE; |
| |
| return NSK_TRUE; |
| } |
| |
| /** |
| * Suspend or resume tested threads. |
| */ |
| static int suspendThreadsIndividually(int suspend) { |
| int i; |
| |
| for (i = 0; i < THREADS_COUNT; i++) { |
| if (suspend) { |
| NSK_DISPLAY2(" suspend thread #%d (%s)\n", i, threadsDesc[i].threadName); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(SuspendThread, jvmti, threadsDesc[i].thread))) |
| nsk_jvmti_setFailStatus(); |
| } else { |
| NSK_DISPLAY2(" resume thread #%d (%s)\n", i, threadsDesc[i].threadName); |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(ResumeThread, jvmti, threadsDesc[i].thread))) |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| return NSK_TRUE; |
| } |
| |
| /** |
| * Testcase: check tested threads. |
| * - call GetFrameCount() and getStackTrace() |
| * - compare numbers of stack frame returned |
| * - find stck frane with expected methodID |
| * |
| * Returns NSK_TRUE if test may continue; or NSK_FALSE for test break. |
| */ |
| static int checkThreads(int suspended, const char* kind0) { |
| char kind[256] = ""; |
| int i; |
| |
| /* check each thread */ |
| for (i = 0; i < THREADS_COUNT; i++) { |
| jint frameCount = 0; |
| jint frameStackSize = 0; |
| jvmtiFrameInfo frameStack[MAX_STACK_SIZE]; |
| int found = 0; |
| int j; |
| |
| /* make proper kind */ |
| strcpy(kind, threadsDesc[i].methodCompiled ? "compiled " : "not compiled "); |
| strcat(kind, kind0); |
| NSK_DISPLAY2(" thread #%d (%s):\n", i, threadsDesc[i].threadName); |
| |
| /* get frame count */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(GetFrameCount, jvmti, |
| threadsDesc[i].thread, &frameCount))) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_TRUE; |
| } |
| |
| NSK_DISPLAY1(" frameCount: %d\n", (int)frameCount); |
| |
| /* get stack trace */ |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB6(GetStackTrace, jvmti, threadsDesc[i].thread, |
| 0, MAX_STACK_SIZE, frameStack, &frameStackSize))) { |
| nsk_jvmti_setFailStatus(); |
| return NSK_TRUE; |
| } |
| |
| NSK_DISPLAY1(" stack depth: %d\n", (int)frameStackSize); |
| |
| /* check stack size */ |
| if (frameStackSize < frameCount) { |
| NSK_COMPLAIN5("Too small stack of %s thread #%d (%s):\n" |
| "# got ctack frames: %d\n" |
| "# got framesCount: %d\n", |
| kind, i, threadsDesc[i].threadName, |
| (int)frameStackSize, (int)frameCount); |
| nsk_jvmti_setFailStatus(); |
| } |
| |
| /* find method on the stack */ |
| found = 0; |
| for (j = 0; j < frameStackSize; j++) { |
| NSK_DISPLAY3(" %d: methodID: 0x%p, location: %ld\n", |
| j, (void*)frameStack[j].method, |
| (long)frameStack[j].location); |
| /* check frame method */ |
| if (frameStack[j].method == NULL) { |
| NSK_COMPLAIN3("NULL methodID in stack for %s thread #%d (%s)\n", |
| kind, i, threadsDesc[i].threadName); |
| nsk_jvmti_setFailStatus(); |
| } else if (frameStack[j].method == threadsDesc[i].method) { |
| found++; |
| NSK_DISPLAY1(" found expected method: %s\n", |
| (void*)threadsDesc[i].methodName); |
| } |
| } |
| |
| /* check if expected method found */ |
| if (found != 1) { |
| NSK_COMPLAIN5("Unexpected method frames on stack for %s thread #%d (%s):\n" |
| "# found frames: %d\n" |
| "# expected: %d\n", |
| kind, i, threadsDesc[i].threadName, |
| found, 1); |
| nsk_jvmti_setFailStatus(); |
| } |
| } |
| |
| /* test may continue */ |
| return NSK_TRUE; |
| } |
| |
| /** |
| * Clean data. |
| * - disable events |
| * - dispose global references to tested threads |
| */ |
| static int clean() { |
| int i; |
| |
| NSK_DISPLAY0("Disable events\n"); |
| if (!nsk_jvmti_enableEvents(JVMTI_DISABLE, EVENTS_COUNT, eventsList, NULL)) |
| return NSK_FALSE; |
| |
| NSK_DISPLAY0("Dispose global references to threads\n"); |
| for (i = 0; i < THREADS_COUNT; i++) { |
| NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, threadsDesc[i].thread)); |
| NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, threadsDesc[i].cls)); |
| } |
| |
| return NSK_TRUE; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** |
| * COMPILED_METHOD_LOAD callback. |
| * - turn on flag that method is compiled |
| */ |
| JNIEXPORT void JNICALL |
| callbackCompiledMethodLoad(jvmtiEnv* jvmti, jmethodID method, |
| jint code_size, const void* code_addr, |
| jint map_length, const jvmtiAddrLocationMap* map, |
| const void* compile_info) { |
| int i; |
| |
| /* check if event is for tested method and turn flag on */ |
| for (i = 0; i < THREADS_COUNT; i++) { |
| if (threadsDesc[i].method == method) { |
| threadsDesc[i].methodCompiled = NSK_TRUE; |
| |
| NSK_DISPLAY2(" COMPILED_METHOD_LOAD for method #%d (%s):\n", |
| i, threadsDesc[i].methodName); |
| NSK_DISPLAY1(" methodID: 0x%p\n", |
| (void*)threadsDesc[i].method); |
| NSK_DISPLAY1(" code_size: %d\n", |
| (int)code_size); |
| NSK_DISPLAY1(" map_length: %d\n", |
| (int)map_length); |
| break; |
| } |
| } |
| } |
| |
| /** |
| * COMPILED_METHOD_UNLOAD callback. |
| * - turn off flag that method is compiled |
| */ |
| JNIEXPORT void JNICALL |
| callbackCompiledMethodUnload(jvmtiEnv* jvmti, jmethodID method, |
| const void* code_addr) { |
| int i; |
| |
| /* check if event is for tested method and turn flag off */ |
| for (i = 0; i < THREADS_COUNT; i++) { |
| if (threadsDesc[i].method == method) { |
| threadsDesc[i].methodCompiled = NSK_FALSE; |
| |
| NSK_DISPLAY2(" COMPILED_METHOD_UNLOAD for method #%d (%s):\n", |
| i, threadsDesc[i].methodName); |
| NSK_DISPLAY1(" methodID: 0x%p\n", |
| (void*)threadsDesc[i].method); |
| break; |
| } |
| } |
| } |
| |
| /* ============================================================================= */ |
| |
| volatile int testedThreadReady = NSK_FALSE; |
| volatile int testedThreadShouldFinish = NSK_FALSE; |
| |
| /** Native running method in tested thread. */ |
| JNIEXPORT void JNICALL |
| Java_nsk_jvmti_scenarios_sampling_SP06_sp06t002ThreadRunningNative_testedMethod(JNIEnv* jni, |
| jobject obj, |
| jboolean simulate, |
| jint i) { |
| if (!simulate) { |
| volatile int k = 0, n = 1000; |
| |
| /* run in a continous loop */ |
| testedThreadReady = NSK_TRUE; |
| while (!testedThreadShouldFinish) { |
| if (n <= 0) |
| n = 1000; |
| if (k >= n) |
| k = 0; |
| k++; |
| } |
| } |
| } |
| |
| /* Wait for native method is running. */ |
| JNIEXPORT jboolean JNICALL |
| Java_nsk_jvmti_scenarios_sampling_SP06_sp06t002ThreadRunningNative_checkReady(JNIEnv* jni, |
| jobject obj) { |
| while (!testedThreadReady) { |
| nsk_jvmti_sleep(1000); |
| } |
| return testedThreadReady ? JNI_TRUE : JNI_FALSE; |
| } |
| |
| /** Let native method to finish. */ |
| JNIEXPORT void JNICALL |
| Java_nsk_jvmti_scenarios_sampling_SP06_sp06t002ThreadRunningNative_letFinish(JNIEnv* jni, |
| jobject obj) { |
| testedThreadShouldFinish = NSK_TRUE; |
| } |
| |
| /* ============================================================================= */ |
| |
| /** Agent library initialization. */ |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_sp06t002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_sp06t002(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_sp06t002(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; |
| |
| { |
| jvmtiCapabilities caps; |
| memset(&caps, 0, sizeof(caps)); |
| caps.can_suspend = 1; |
| caps.can_generate_compiled_method_load_events = 1; |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB2(AddCapabilities, jvmti, &caps))) |
| return JNI_ERR; |
| } |
| |
| { |
| jvmtiEventCallbacks eventCallbacks; |
| memset(&eventCallbacks, 0, sizeof(eventCallbacks)); |
| eventCallbacks.CompiledMethodLoad = callbackCompiledMethodLoad; |
| eventCallbacks.CompiledMethodUnload = callbackCompiledMethodUnload; |
| if (!NSK_JVMTI_VERIFY( |
| NSK_CPP_STUB3(SetEventCallbacks, jvmti, |
| &eventCallbacks, sizeof(eventCallbacks)))) |
| return JNI_ERR; |
| } |
| |
| if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) |
| return JNI_ERR; |
| |
| return JNI_OK; |
| } |
| |
| /* ============================================================================= */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
