1 /*
2 * Copyright (c) 2004, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include <string.h>
25 #include "jvmti.h"
26 #include "agent_common.h"
27 #include "jni_tools.h"
28 #include "jvmti_tools.h"
29 #include "JVMTITools.h"
30
31 extern "C" {
32
33 /* ============================================================================= */
34
35 /* scaffold objects */
36 static jvmtiEnv *jvmti = NULL;
37 static jlong timeout = 0;
38 static jrawMonitorID syncLock = NULL;
39
40 /* constant names */
41 #define STEP_NUMBER 3
42 #define OBJECT_NUMBER 100
43 #define JVMTI_EVENT_COUNT (int)(JVMTI_MAX_EVENT_TYPE_VAL - JVMTI_MIN_EVENT_TYPE_VAL + 1)
44
45 static int eventCount[JVMTI_EVENT_COUNT];
46 static int newEventCount[JVMTI_EVENT_COUNT];
47
48 /* ============================================================================= */
49
50
51 /*
52 * Class: nsk_jvmti_scenarios_events_EM02_em02t006
53 * Method: setTag
54 * Signature: (Ljava/lang/Object;J)Z
55 */
56 JNIEXPORT jboolean JNICALL
57 Java_nsk_jvmti_scenarios_events_EM02_em02t006_setTag(JNIEnv *env,
58 jobject o, jobject object, jlong tag) {
59
60 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetTag, jvmti, object, tag))) {
61 NSK_COMPLAIN0("TEST FAILED: unable to set tag for a tested object\n");
62 return NSK_FALSE;
63 }
64 return NSK_TRUE;
65 }
66
67 static void
68 showEventStatistics(int step) {
69 int i;
70 const char* str;
71 int *currentCounts = (step == 1) ? &eventCount[0] : &newEventCount[0];
72
73 NSK_DISPLAY0("\n");
74 NSK_DISPLAY1("Event statistics for %d step:\n", step);
75 NSK_DISPLAY0("-----------------------------\n");
76 for (i = 0; i < JVMTI_EVENT_COUNT; i++) {
77 if (currentCounts[i] > 0) {
78 str = TranslateEvent((jvmtiEvent)(i+JVMTI_MIN_EVENT_TYPE_VAL));
79 NSK_DISPLAY2("%-40s %7d\n", str, currentCounts[i]);
80 }
81 }
82 }
83
84 /* ========================================================================== */
85
86 int checkEvents(int step) {
87 int i;
88 jvmtiEvent curr;
89 int result = NSK_TRUE;
90 int *currentCounts;
91 int isExpected = 0;
92
93 switch (step) {
94 case 1:
95 currentCounts = &eventCount[0];
96 break;
97
98 case 2:
99 case 3:
100 currentCounts = &newEventCount[0];
101 break;
102
103 default:
104 NSK_COMPLAIN1("Unexpected step no: %d\n", step);
105 return NSK_FALSE;
106 }
107
108 for (i = 0; i < JVMTI_EVENT_COUNT; i++) {
109
110 curr = (jvmtiEvent) (i + JVMTI_MIN_EVENT_TYPE_VAL);
111
112 switch (step) {
113 case 1:
114 isExpected = ((curr == JVMTI_EVENT_OBJECT_FREE)
115 || (curr == JVMTI_EVENT_VM_INIT));
116 break;
117
118 case 2:
119 isExpected = (curr == JVMTI_EVENT_OBJECT_FREE);
120 break;
121
122 case 3:
123 isExpected = (curr == JVMTI_EVENT_VM_DEATH);
124 break;
125 }
126
127 if (isExpected) {
128 if (currentCounts[i] < 0 || currentCounts[i] > OBJECT_NUMBER) {
129 NSK_COMPLAIN2("Unexpected events number %7d for %s\n\texpected value must be greater than 1\n",
130 currentCounts[i],
131 TranslateEvent(curr));
132 result = NSK_FALSE;
133 }
134 } else {
135
136 if (currentCounts[i] > 0) {
137 NSK_COMPLAIN2("Unexpected event %s was sent %d times\n",
138 TranslateEvent(curr),
139 currentCounts[i]);
140 result = NSK_FALSE;
141 }
142 }
143 }
144
145 return result;
146 }
147
148 static void
149 changeCount(jvmtiEvent event, int *currentCounts) {
150
151 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorEnter, jvmti, syncLock)))
152 nsk_jvmti_setFailStatus();
153
154 currentCounts[event - JVMTI_MIN_EVENT_TYPE_VAL]++;
155
156 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorExit, jvmti, syncLock)))
157 nsk_jvmti_setFailStatus();
158
159 }
160
161 /* ============================================================================= */
162
163 /* callbacks */
164 JNIEXPORT void JNICALL
165 cbVMInit(jvmtiEnv* jvmti, JNIEnv* jni_env, jthread thread) {
166 changeCount(JVMTI_EVENT_VM_INIT, &eventCount[0]);
167 }
168
169 JNIEXPORT void JNICALL
170 cbVMDeath(jvmtiEnv* jvmti, JNIEnv* jni_env) {
171 changeCount(JVMTI_EVENT_VM_DEATH, &newEventCount[0]);
172 showEventStatistics(STEP_NUMBER);
173 if (!checkEvents(STEP_NUMBER))
174 nsk_jvmti_setFailStatus();
175
176 if (!NSK_JVMTI_VERIFY(
177 NSK_CPP_STUB2(DestroyRawMonitor, jvmti, syncLock)))
178 nsk_jvmti_setFailStatus();
179
180 }
181
182 void JNICALL
183 cbException(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
184 jmethodID method, jlocation location, jobject exception,
185 jmethodID catch_method, jlocation catch_location) {
186 changeCount(JVMTI_EVENT_EXCEPTION, &eventCount[0]);
187 }
188
189 void JNICALL
190 cbExceptionCatch(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
191 jmethodID method, jlocation location, jobject exception) {
192 changeCount(JVMTI_EVENT_EXCEPTION_CATCH, &eventCount[0]);
193 }
194
195 void JNICALL
196 cbSingleStep(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
197 jmethodID method, jlocation location) {
198 changeCount(JVMTI_EVENT_SINGLE_STEP, &eventCount[0]);
199 }
200
201 void JNICALL
202 cbFramePop(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
203 jmethodID method, jboolean was_popped_by_exception) {
204 changeCount(JVMTI_EVENT_FRAME_POP, &eventCount[0]);
205 }
206
207 void JNICALL
208 cbBreakpoint(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
209 jmethodID method, jlocation location) {
210 changeCount(JVMTI_EVENT_BREAKPOINT, &eventCount[0]);
211 }
212
213 void JNICALL
214 cbFieldAccess(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
215 jmethodID method, jlocation location, jclass field_klass,
216 jobject object, jfieldID field) {
217 changeCount(JVMTI_EVENT_FIELD_ACCESS, &eventCount[0]);
218 }
219
220 void JNICALL
221 cbFieldModification(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
222 jmethodID method, jlocation location, jclass field_klass,
223 jobject object, jfieldID field, char signature_type,
224 jvalue new_value) {
225 changeCount(JVMTI_EVENT_FIELD_MODIFICATION, &eventCount[0]);
226 }
227
228 void JNICALL
229 cbMethodEntry(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
230 jmethodID method) {
231 changeCount(JVMTI_EVENT_METHOD_ENTRY, &eventCount[0]);
232 }
233
234 void JNICALL
235 cbMethodExit(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
236 jmethodID method, jboolean was_popped_by_exception,
237 jvalue return_value) {
238 changeCount(JVMTI_EVENT_METHOD_EXIT, &eventCount[0]);
239 }
240
241 void JNICALL
242 cbNativeMethodBind(jvmtiEnv *jvmti_env, JNIEnv* jni_env,jthread thread,
243 jmethodID method, void* address, void** new_address_ptr) {
244 changeCount(JVMTI_EVENT_NATIVE_METHOD_BIND, &eventCount[0]);
245 }
246
247 void JNICALL
248 cbMonitorWait(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
249 jobject object, jlong tout) {
250
251 changeCount(JVMTI_EVENT_MONITOR_WAIT, &eventCount[0]);
252 }
253
254 void JNICALL
255 cbMonitorWaited(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
256 jobject object, jboolean timed_out) {
257
258 changeCount(JVMTI_EVENT_MONITOR_WAITED, &eventCount[0]);
259 }
260
261 JNIEXPORT void JNICALL
262 cbMonitorContendedEnter(jvmtiEnv* jvmti, JNIEnv* jni_env, jthread thread,
263 jobject object) {
264
265 changeCount(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, &eventCount[0]);
266 }
267
268 void JNICALL
269 cbMonitorContendedEntered(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
270 jobject object) {
271
272 changeCount(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, &eventCount[0]);
273 }
274
275 void JNICALL
276 cbCompiledMethodLoad(jvmtiEnv *jvmti_env, jmethodID method, jint code_size,
277 const void* code_addr, jint map_length,
278 const jvmtiAddrLocationMap* map, const void* compile_info) {
279 changeCount(JVMTI_EVENT_COMPILED_METHOD_LOAD, &eventCount[0]);
280 }
281
282 void JNICALL
283 cbCompiledMethodUnload(jvmtiEnv *jvmti_env, jmethodID method,
284 const void* code_addr) {
285 changeCount(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, &eventCount[0]);
286 }
287
288 void JNICALL
289 cbGarbageCollectionStart(jvmtiEnv *jvmti_env) {
290 changeCount(JVMTI_EVENT_GARBAGE_COLLECTION_START, &eventCount[0]);
291 }
292
293 void JNICALL
294 cbGarbageCollectionFinish(jvmtiEnv *jvmti_env) {
295 changeCount(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, &eventCount[0]);
296 }
297
298 void JNICALL
299 cbObjectFree(jvmtiEnv *jvmti_env, jlong tag) {
300
301 changeCount(JVMTI_EVENT_OBJECT_FREE, &eventCount[0]);
302 if (tag < 1 || tag > OBJECT_NUMBER) {
303 NSK_COMPLAIN1("Unexpected tag value %lld\n", tag);
304 nsk_jvmti_setFailStatus();
305 }
306 }
307
308 void JNICALL
309 cbNewObjectFree(jvmtiEnv *jvmti_env, jlong tag) {
310
311 changeCount(JVMTI_EVENT_OBJECT_FREE, &newEventCount[0]);
312 if (tag < 1 || tag > OBJECT_NUMBER) {
313 NSK_COMPLAIN1("Unexpected tag value %lld\n", tag);
314 nsk_jvmti_setFailStatus();
315 }
316 }
317
318 void JNICALL
319 cbVMObjectAlloc(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
320 jobject object, jclass object_klass, jlong size) {
321
322 changeCount(JVMTI_EVENT_VM_OBJECT_ALLOC, &eventCount[0]);
323 }
324
325 /* ============================================================================= */
326
327 static int enableEvent(jvmtiEvent event) {
328
329 if (nsk_jvmti_isOptionalEvent(event)
330 && (event != JVMTI_EVENT_OBJECT_FREE)) {
331 if (!NSK_JVMTI_VERIFY_CODE(JVMTI_ERROR_MUST_POSSESS_CAPABILITY,
332 NSK_CPP_STUB4(SetEventNotificationMode, jvmti,
333 JVMTI_ENABLE, event, NULL))) {
334 NSK_COMPLAIN1("Unexpected error enabling %s\n",
335 TranslateEvent(event));
336 return NSK_FALSE;
337 }
338 } else {
339 if (!NSK_JVMTI_VERIFY(
340 NSK_CPP_STUB4(SetEventNotificationMode, jvmti,
341 JVMTI_ENABLE, event, NULL))) {
342 NSK_COMPLAIN1("Unexpected error enabling %s\n",
343 TranslateEvent(event));
344 return NSK_FALSE;
345 }
346 }
347
348 return NSK_TRUE;
349 }
350
351 /**
352 * Enable or disable tested events.
353 */
354 static int enableEventList() {
355
356 int i, result;
357
358 result = enableEvent(JVMTI_EVENT_VM_INIT);
359
360 result = result && enableEvent(JVMTI_EVENT_VM_DEATH);
361
362 /* enabling optional events */
363 for (i = 0; i < JVMTI_EVENT_COUNT; i++) {
364 jvmtiEvent event = (jvmtiEvent)(i+JVMTI_MIN_EVENT_TYPE_VAL);
365
366 if (nsk_jvmti_isOptionalEvent(event))
367 result = result && enableEvent(event);
368 }
369
370 if (result == NSK_FALSE) {
371 nsk_jvmti_setFailStatus();
372 return NSK_FALSE;
373 }
374
375 return NSK_TRUE;
376 }
377
378 /* ============================================================================= */
379
380 static int
381 setCallBacks(int step) {
382
383 int i;
384
385 jvmtiEventCallbacks eventCallbacks;
386 memset(&eventCallbacks, 0, sizeof(eventCallbacks));
387
388 switch (step) {
389 case 1:
390 for (i = 0; i < JVMTI_EVENT_COUNT; i++) {
391 eventCount[i] = 0;
392 }
393
394 eventCallbacks.VMInit = cbVMInit;
395 eventCallbacks.Exception = cbException;
396 eventCallbacks.ExceptionCatch = cbExceptionCatch;
397 eventCallbacks.SingleStep = cbSingleStep;
398 eventCallbacks.FramePop = cbFramePop;
399 eventCallbacks.Breakpoint = cbBreakpoint;
400 eventCallbacks.FieldAccess = cbFieldAccess;
401 eventCallbacks.FieldModification = cbFieldModification;
402 eventCallbacks.MethodEntry = cbMethodEntry;
403 eventCallbacks.MethodExit = cbMethodExit;
404 eventCallbacks.NativeMethodBind = cbNativeMethodBind;
405 eventCallbacks.CompiledMethodLoad = cbCompiledMethodLoad;
406 eventCallbacks.CompiledMethodUnload = cbCompiledMethodUnload;
407 eventCallbacks.MonitorWait = cbMonitorWait;
408 eventCallbacks.MonitorWaited = cbMonitorWaited;
409 eventCallbacks.MonitorContendedEnter = cbMonitorContendedEnter;
410 eventCallbacks.MonitorContendedEntered = cbMonitorContendedEntered;
411 eventCallbacks.GarbageCollectionStart = cbGarbageCollectionStart;
412 eventCallbacks.GarbageCollectionFinish = cbGarbageCollectionFinish;
413 eventCallbacks.ObjectFree = cbObjectFree;
414 eventCallbacks.VMObjectAlloc = cbVMObjectAlloc;
415 break;
416
417 case 2:
418 for (i = 0; i < JVMTI_EVENT_COUNT; i++) {
419 newEventCount[i] = 0;
420 }
421
422 eventCallbacks.ObjectFree = cbNewObjectFree;
423 break;
424
425 case 3:
426 for (i = 0; i < JVMTI_EVENT_COUNT; i++) {
427 newEventCount[i] = 0;
428 }
429
430 eventCallbacks.VMDeath = cbVMDeath;
431 break;
432
433 }
434 if (!NSK_JVMTI_VERIFY(
435 NSK_CPP_STUB3(SetEventCallbacks, jvmti,
436 &eventCallbacks,
437 sizeof(eventCallbacks))))
438 return NSK_FALSE;
439
440 return NSK_TRUE;
441 }
442
443 /* ============================================================================= */
444
445 /** Agent algorithm. */
446 static void JNICALL
447 agentProc(jvmtiEnv* jvmti, JNIEnv* agentJNI, void* arg) {
448
449 int i;
450
451 for (i = 1; i <= STEP_NUMBER; i++) {
452
453 if (!nsk_jvmti_waitForSync(timeout))
454 return;
455
456 NSK_DISPLAY0("Check received events\n");
457
458 if (i < STEP_NUMBER) {
459 showEventStatistics(i);
460 if (!checkEvents(i))
461 nsk_jvmti_setFailStatus();
462
463 if (!setCallBacks(i + 1)) {
464 return;
465 }
466 }
467
468 if (!nsk_jvmti_resumeSync())
469 return;
470 }
471
472 }
473
474 /* ============================================================================= */
475
476 /** Agent library initialization. */
477 #ifdef STATIC_BUILD
478 JNIEXPORT jint JNICALL Agent_OnLoad_em02t006(JavaVM *jvm, char *options, void *reserved) {
479 return Agent_Initialize(jvm, options, reserved);
480 }
481 JNIEXPORT jint JNICALL Agent_OnAttach_em02t006(JavaVM *jvm, char *options, void *reserved) {
482 return Agent_Initialize(jvm, options, reserved);
483 }
484 JNIEXPORT jint JNI_OnLoad_em02t006(JavaVM *jvm, char *options, void *reserved) {
485 return JNI_VERSION_1_8;
486 }
487 #endif
488 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
489
490 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
491 return JNI_ERR;
492
493 timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
494
495 if (!NSK_VERIFY((jvmti = nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
496 return JNI_ERR;
497
498 if (!NSK_JVMTI_VERIFY(
499 NSK_CPP_STUB3(CreateRawMonitor, jvmti, "_syncLock", &syncLock))) {
500 nsk_jvmti_setFailStatus();
501 return JNI_ERR;
502 }
503
504 {
505 jvmtiCapabilities caps;
506 memset(&caps, 0, sizeof(caps));
507
508 caps.can_tag_objects = 1;
509 caps.can_generate_object_free_events = 1;
510 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps)))
511 return JNI_ERR;
512 }
513
514 if (!setCallBacks(1)) {
515 return JNI_ERR;
516 }
517
518 if (!enableEventList()) {
519 return JNI_ERR;
520 }
521
522 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
523 return JNI_ERR;
524
525 return JNI_OK;
526 }
527
528 /* ============================================================================= */
529
530
531 }