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 EXPECTED_CLASS_NAME "Lnsk/jvmti/scenarios/events/EM02/em02t005a;" 43 #define JVMTI_EVENT_COUNT (int)(JVMTI_MAX_EVENT_TYPE_VAL - JVMTI_MIN_EVENT_TYPE_VAL + 1) 44 #define NUMBER_OF_INVOCATIONS 1000 45 46 static int eventCount[JVMTI_EVENT_COUNT]; 47 static int newEventCount[JVMTI_EVENT_COUNT]; 48 49 /* ============================================================================= */ 50 51 static void 52 showEventStatistics(int step) { 53 int i; 54 const char* str; 55 int *currentCounts = (step == 1) ? &eventCount[0] : &newEventCount[0]; 56 57 NSK_DISPLAY0("\n"); 58 NSK_DISPLAY1("Event statistics for %d step:\n", step); 59 NSK_DISPLAY0("-----------------------------\n"); 60 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 61 if (currentCounts[i] > 0) { 62 str = TranslateEvent((jvmtiEvent)(i+JVMTI_MIN_EVENT_TYPE_VAL)); 63 NSK_DISPLAY2("%-40s %7d\n", str, currentCounts[i]); 64 } 65 } 66 } 67 68 /* ========================================================================== */ 69 70 int checkEvents(int step) { 71 int i; 72 jvmtiEvent curr; 73 int result = NSK_TRUE; 74 int *currentCounts; 75 int isExpected = 0; 76 77 switch (step) { 78 case 1: 79 currentCounts = &eventCount[0]; 80 break; 81 82 case 2: 83 case 3: 84 currentCounts = &newEventCount[0]; 85 break; 86 87 default: 88 NSK_COMPLAIN1("Unexpected step no: %d\n", step); 89 return NSK_FALSE; 90 } 91 92 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 93 94 curr = (jvmtiEvent) (i + JVMTI_MIN_EVENT_TYPE_VAL); 95 96 switch (step) { 97 case 1: 98 isExpected = ((curr == JVMTI_EVENT_VM_INIT) 99 || (curr == JVMTI_EVENT_VM_OBJECT_ALLOC)); 100 break; 101 102 case 2: 103 isExpected = (curr == JVMTI_EVENT_VM_OBJECT_ALLOC); 104 break; 105 106 case 3: 107 isExpected = (curr == JVMTI_EVENT_VM_DEATH); 108 break; 109 } 110 111 if (isExpected) { 112 if (currentCounts[i] < 0) { 113 NSK_COMPLAIN2("Unexpected events number %7d for %s\n\texpected value must be non-negative\n", 114 currentCounts[i], 115 TranslateEvent(curr)); 116 result = NSK_FALSE; 117 } 118 119 } else { 120 121 if (currentCounts[i] > 0) { 122 NSK_COMPLAIN2("Unexpected event %s was sent %d times\n", 123 TranslateEvent(curr), 124 currentCounts[i]); 125 result = NSK_FALSE; 126 } 127 } 128 } 129 130 return result; 131 } 132 133 static void 134 changeCount(jvmtiEvent event, int *currentCounts) { 135 136 if (!NSK_JVMTI_VERIFY(jvmti->RawMonitorEnter(syncLock))) 137 nsk_jvmti_setFailStatus(); 138 139 currentCounts[event - JVMTI_MIN_EVENT_TYPE_VAL]++; 140 141 if (!NSK_JVMTI_VERIFY(jvmti->RawMonitorExit(syncLock))) 142 nsk_jvmti_setFailStatus(); 143 144 } 145 146 /* ============================================================================= */ 147 148 /* callbacks */ 149 JNIEXPORT void JNICALL 150 cbVMInit(jvmtiEnv* jvmti, JNIEnv* jni_env, jthread thread) { 151 changeCount(JVMTI_EVENT_VM_INIT, &eventCount[0]); 152 } 153 154 JNIEXPORT void JNICALL 155 cbVMDeath(jvmtiEnv* jvmti, JNIEnv* jni_env) { 156 changeCount(JVMTI_EVENT_VM_DEATH, &newEventCount[0]); 157 showEventStatistics(STEP_NUMBER); 158 if (!checkEvents(STEP_NUMBER)) 159 nsk_jvmti_setFailStatus(); 160 161 if (!NSK_JVMTI_VERIFY(jvmti->DestroyRawMonitor(syncLock))) 162 nsk_jvmti_setFailStatus(); 163 164 } 165 166 void JNICALL 167 cbException(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 168 jmethodID method, jlocation location, jobject exception, 169 jmethodID catch_method, jlocation catch_location) { 170 171 changeCount(JVMTI_EVENT_EXCEPTION, &eventCount[0]); 172 } 173 174 void JNICALL 175 cbExceptionCatch(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 176 jmethodID method, jlocation location, jobject exception) { 177 178 changeCount(JVMTI_EVENT_EXCEPTION_CATCH, &eventCount[0]); 179 } 180 181 void JNICALL 182 cbSingleStep(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 183 jmethodID method, jlocation location) { 184 185 changeCount(JVMTI_EVENT_SINGLE_STEP, &eventCount[0]); 186 } 187 188 void JNICALL 189 cbFramePop(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 190 jmethodID method, jboolean was_popped_by_exception) { 191 changeCount(JVMTI_EVENT_FRAME_POP, &eventCount[0]); 192 } 193 194 void JNICALL 195 cbBreakpoint(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 196 jmethodID method, jlocation location) { 197 changeCount(JVMTI_EVENT_BREAKPOINT, &eventCount[0]); 198 } 199 200 void JNICALL 201 cbFieldAccess(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 202 jmethodID method, jlocation location, jclass field_klass, 203 jobject object, jfieldID field) { 204 205 changeCount(JVMTI_EVENT_FIELD_ACCESS, &eventCount[0]); 206 } 207 208 void JNICALL 209 cbFieldModification(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 210 jmethodID method, jlocation location, jclass field_klass, 211 jobject object, jfieldID field, char signature_type, 212 jvalue new_value) { 213 214 changeCount(JVMTI_EVENT_FIELD_MODIFICATION, &eventCount[0]); 215 } 216 217 void JNICALL 218 cbMethodEntry(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 219 jmethodID method) { 220 221 changeCount(JVMTI_EVENT_METHOD_ENTRY, &eventCount[0]); 222 } 223 224 void JNICALL 225 cbMethodExit(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 226 jmethodID method, jboolean was_popped_by_exception, 227 jvalue return_value) { 228 229 changeCount(JVMTI_EVENT_METHOD_EXIT, &eventCount[0]); 230 } 231 232 void JNICALL 233 cbNativeMethodBind(jvmtiEnv *jvmti_env, JNIEnv* jni_env,jthread thread, 234 jmethodID method, void* address, void** new_address_ptr) { 235 changeCount(JVMTI_EVENT_NATIVE_METHOD_BIND, &eventCount[0]); 236 } 237 238 void JNICALL 239 cbMonitorWait(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 240 jobject object, jlong tout) { 241 242 changeCount(JVMTI_EVENT_MONITOR_WAIT, &eventCount[0]); 243 } 244 245 void JNICALL 246 cbMonitorWaited(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 247 jobject object, jboolean timed_out) { 248 249 changeCount(JVMTI_EVENT_MONITOR_WAITED, &eventCount[0]); 250 } 251 252 JNIEXPORT void JNICALL 253 cbMonitorContendedEnter(jvmtiEnv* jvmti, JNIEnv* jni_env, jthread thread, 254 jobject object) { 255 256 changeCount(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, &eventCount[0]); 257 } 258 259 void JNICALL 260 cbMonitorContendedEntered(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 261 jobject object) { 262 263 changeCount(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, &eventCount[0]); 264 } 265 266 void JNICALL 267 cbCompiledMethodLoad(jvmtiEnv *jvmti_env, jmethodID method, jint code_size, 268 const void* code_addr, jint map_length, 269 const jvmtiAddrLocationMap* map, const void* compile_info) { 270 changeCount(JVMTI_EVENT_COMPILED_METHOD_LOAD, &eventCount[0]); 271 } 272 273 void JNICALL 274 cbCompiledMethodUnload(jvmtiEnv *jvmti_env, jmethodID method, 275 const void* code_addr) { 276 changeCount(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, &eventCount[0]); 277 } 278 279 void JNICALL 280 cbGarbageCollectionStart(jvmtiEnv *jvmti_env) { 281 changeCount(JVMTI_EVENT_GARBAGE_COLLECTION_START, &eventCount[0]); 282 } 283 284 void JNICALL 285 cbGarbageCollectionFinish(jvmtiEnv *jvmti_env) { 286 changeCount(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, &eventCount[0]); 287 } 288 289 void JNICALL 290 cbObjectFree(jvmtiEnv *jvmti_env, jlong tag) { 291 292 changeCount(JVMTI_EVENT_OBJECT_FREE, &eventCount[0]); 293 } 294 295 void JNICALL 296 cbVMObjectAlloc(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 297 jobject object, jclass object_klass, jlong size) { 298 299 char *sign_ptr; 300 char *gen_ptr; 301 302 jvmtiPhase phase; 303 304 if (!NSK_JVMTI_VERIFY(jvmti_env->GetClassSignature(object_klass, &sign_ptr, &gen_ptr))) { 305 nsk_jvmti_setFailStatus(); 306 return; 307 } 308 309 if (strcmp(sign_ptr, EXPECTED_CLASS_NAME) == 0) { 310 changeCount(JVMTI_EVENT_VM_OBJECT_ALLOC, &eventCount[0]); 311 } 312 313 if (!NSK_JVMTI_VERIFY(jvmti_env->GetPhase(&phase))) { 314 nsk_jvmti_setFailStatus(); 315 } 316 317 if (phase != JVMTI_PHASE_LIVE) { 318 NSK_COMPLAIN4("%25s was sent during %s(%d)\n\tclass: %s\n", 319 TranslateEvent(JVMTI_EVENT_VM_OBJECT_ALLOC), 320 TranslatePhase(phase), 321 phase, 322 sign_ptr); 323 nsk_jvmti_setFailStatus(); 324 } 325 326 if (!NSK_JVMTI_VERIFY(jvmti_env->Deallocate((unsigned char*)sign_ptr))) { 327 nsk_jvmti_setFailStatus(); 328 } 329 if (gen_ptr != NULL) 330 if (!NSK_JVMTI_VERIFY(jvmti_env->Deallocate((unsigned char*)gen_ptr))) { 331 nsk_jvmti_setFailStatus(); 332 } 333 } 334 335 void JNICALL 336 cbNewVMObjectAlloc(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 337 jobject object, jclass object_klass, jlong size) { 338 339 char *sign_ptr; 340 char *gen_ptr; 341 342 jvmtiPhase phase; 343 344 if (!NSK_JVMTI_VERIFY(jvmti_env->GetClassSignature(object_klass, &sign_ptr, &gen_ptr))) { 345 nsk_jvmti_setFailStatus(); 346 return; 347 } 348 349 if (strcmp(sign_ptr, EXPECTED_CLASS_NAME) == 0) { 350 changeCount(JVMTI_EVENT_VM_OBJECT_ALLOC, &newEventCount[0]); 351 } 352 353 if (!NSK_JVMTI_VERIFY(jvmti_env->GetPhase(&phase))) { 354 nsk_jvmti_setFailStatus(); 355 } 356 357 if (phase != JVMTI_PHASE_LIVE) { 358 NSK_COMPLAIN4("%25s was sent during %s(%d)\n\tclass: %s\n", 359 TranslateEvent(JVMTI_EVENT_VM_OBJECT_ALLOC), 360 TranslatePhase(phase), 361 phase, 362 sign_ptr); 363 nsk_jvmti_setFailStatus(); 364 } 365 366 if (!NSK_JVMTI_VERIFY(jvmti_env->Deallocate((unsigned char*)sign_ptr))) { 367 nsk_jvmti_setFailStatus(); 368 } 369 if (gen_ptr != NULL) 370 if (!NSK_JVMTI_VERIFY(jvmti_env->Deallocate((unsigned char*)gen_ptr))) { 371 nsk_jvmti_setFailStatus(); 372 } 373 } 374 375 /* ============================================================================= */ 376 377 static int enableEvent(jvmtiEvent event) { 378 379 if (nsk_jvmti_isOptionalEvent(event) 380 && (event != JVMTI_EVENT_VM_OBJECT_ALLOC)) { 381 if (!NSK_JVMTI_VERIFY_CODE(JVMTI_ERROR_MUST_POSSESS_CAPABILITY, 382 jvmti->SetEventNotificationMode(JVMTI_ENABLE, event, NULL))) { 383 NSK_COMPLAIN1("Unexpected error enabling %s\n", 384 TranslateEvent(event)); 385 return NSK_FALSE; 386 } 387 } else { 388 if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_ENABLE, event, NULL))) { 389 NSK_COMPLAIN1("Unexpected error enabling %s\n", 390 TranslateEvent(event)); 391 return NSK_FALSE; 392 } 393 } 394 395 return NSK_TRUE; 396 } 397 398 /** 399 * Enable or disable tested events. 400 */ 401 static int enableEventList() { 402 403 int i, result; 404 405 result = enableEvent(JVMTI_EVENT_VM_INIT); 406 407 result = result && enableEvent(JVMTI_EVENT_VM_DEATH); 408 409 /* enabling optional events */ 410 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 411 jvmtiEvent event = (jvmtiEvent)(i+JVMTI_MIN_EVENT_TYPE_VAL); 412 413 if (nsk_jvmti_isOptionalEvent(event)) 414 result = result && enableEvent(event); 415 } 416 417 if (result == NSK_FALSE) { 418 nsk_jvmti_setFailStatus(); 419 return NSK_FALSE; 420 } 421 422 return NSK_TRUE; 423 } 424 425 /* ============================================================================= */ 426 427 static int 428 setCallBacks(int step) { 429 430 int i; 431 432 jvmtiEventCallbacks eventCallbacks; 433 memset(&eventCallbacks, 0, sizeof(eventCallbacks)); 434 435 switch (step) { 436 case 1: 437 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 438 eventCount[i] = 0; 439 } 440 441 eventCallbacks.VMInit = cbVMInit; 442 eventCallbacks.Exception = cbException; 443 eventCallbacks.ExceptionCatch = cbExceptionCatch; 444 eventCallbacks.SingleStep = cbSingleStep; 445 eventCallbacks.FramePop = cbFramePop; 446 eventCallbacks.Breakpoint = cbBreakpoint; 447 eventCallbacks.FieldAccess = cbFieldAccess; 448 eventCallbacks.FieldModification = cbFieldModification; 449 eventCallbacks.MethodEntry = cbMethodEntry; 450 eventCallbacks.MethodExit = cbMethodExit; 451 eventCallbacks.NativeMethodBind = cbNativeMethodBind; 452 eventCallbacks.CompiledMethodLoad = cbCompiledMethodLoad; 453 eventCallbacks.CompiledMethodUnload = cbCompiledMethodUnload; 454 eventCallbacks.MonitorWait = cbMonitorWait; 455 eventCallbacks.MonitorWaited = cbMonitorWaited; 456 eventCallbacks.MonitorContendedEnter = cbMonitorContendedEnter; 457 eventCallbacks.MonitorContendedEntered = cbMonitorContendedEntered; 458 eventCallbacks.GarbageCollectionStart = cbGarbageCollectionStart; 459 eventCallbacks.GarbageCollectionFinish = cbGarbageCollectionFinish; 460 eventCallbacks.ObjectFree = cbObjectFree; 461 eventCallbacks.VMObjectAlloc = cbVMObjectAlloc; 462 break; 463 464 case 2: 465 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 466 newEventCount[i] = 0; 467 } 468 469 eventCallbacks.VMObjectAlloc = cbNewVMObjectAlloc; 470 break; 471 472 case 3: 473 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 474 newEventCount[i] = 0; 475 } 476 477 eventCallbacks.VMDeath = cbVMDeath; 478 break; 479 480 } 481 if (!NSK_JVMTI_VERIFY(jvmti->SetEventCallbacks(&eventCallbacks, sizeof(eventCallbacks)))) 482 return NSK_FALSE; 483 484 return NSK_TRUE; 485 } 486 487 /* ============================================================================= */ 488 489 /** Agent algorithm. */ 490 static void JNICALL 491 agentProc(jvmtiEnv* jvmti, JNIEnv* agentJNI, void* arg) { 492 493 int i; 494 495 for (i = 1; i <= STEP_NUMBER; i++) { 496 497 if (!nsk_jvmti_waitForSync(timeout)) 498 return; 499 500 if (i < STEP_NUMBER) { 501 showEventStatistics(i); 502 if (!checkEvents(i)) 503 nsk_jvmti_setFailStatus(); 504 505 if (!setCallBacks(i + 1)) { 506 return; 507 } 508 } 509 510 if (!nsk_jvmti_resumeSync()) 511 return; 512 } 513 514 } 515 516 /* ============================================================================= */ 517 518 /** Agent library initialization. */ 519 #ifdef STATIC_BUILD 520 JNIEXPORT jint JNICALL Agent_OnLoad_em02t005(JavaVM *jvm, char *options, void *reserved) { 521 return Agent_Initialize(jvm, options, reserved); 522 } 523 JNIEXPORT jint JNICALL Agent_OnAttach_em02t005(JavaVM *jvm, char *options, void *reserved) { 524 return Agent_Initialize(jvm, options, reserved); 525 } 526 JNIEXPORT jint JNI_OnLoad_em02t005(JavaVM *jvm, char *options, void *reserved) { 527 return JNI_VERSION_1_8; 528 } 529 #endif 530 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { 531 532 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) 533 return JNI_ERR; 534 535 timeout = nsk_jvmti_getWaitTime() * 60 * 1000; 536 537 if (!NSK_VERIFY((jvmti = nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) 538 return JNI_ERR; 539 540 541 if (!NSK_JVMTI_VERIFY(jvmti->CreateRawMonitor("_syncLock", &syncLock))) { 542 nsk_jvmti_setFailStatus(); 543 return JNI_ERR; 544 } 545 546 { 547 jvmtiCapabilities caps; 548 memset(&caps, 0, sizeof(caps)); 549 550 caps.can_generate_vm_object_alloc_events = 1; 551 if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps))) 552 return JNI_ERR; 553 } 554 555 if (!setCallBacks(1)) { 556 return JNI_ERR; 557 } 558 559 if (!enableEventList()) { 560 return JNI_ERR; 561 } 562 563 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) 564 return JNI_ERR; 565 566 return JNI_OK; 567 } 568 569 /* ============================================================================= */ 570 571 572 }