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 CLASS_NAME "nsk/jvmti/scenarios/events/EM02/em02t011" 43 #define METHOD_NAME "javaMethod" 44 #define JVMTI_EVENT_COUNT (int)(JVMTI_MAX_EVENT_TYPE_VAL - JVMTI_MIN_EVENT_TYPE_VAL + 1) 45 #define NUMBER_OF_INVOCATIONS 1000 46 47 static int eventCount[JVMTI_EVENT_COUNT]; 48 static int newEventCount[JVMTI_EVENT_COUNT]; 49 50 /* ============================================================================= */ 51 52 static void 53 showEventStatistics(int step) { 54 int i; 55 const char* str; 56 int *currentCounts = (step == 1) ? &eventCount[0] : &newEventCount[0]; 57 58 NSK_DISPLAY0("\n"); 59 NSK_DISPLAY1("Event statistics for %d step:\n", step); 60 NSK_DISPLAY0("-----------------------------\n"); 61 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 62 if (currentCounts[i] > 0) { 63 str = TranslateEvent((jvmtiEvent)(i+JVMTI_MIN_EVENT_TYPE_VAL)); 64 NSK_DISPLAY2("%-40s %7d\n", str, currentCounts[i]); 65 } 66 } 67 } 68 69 /* ========================================================================== */ 70 71 int checkEvents(int step) { 72 int i; 73 jvmtiEvent curr; 74 int result = NSK_TRUE; 75 int *currentCounts; 76 int isExpected = 0; 77 78 switch (step) { 79 case 1: 80 currentCounts = &eventCount[0]; 81 break; 82 83 case 2: 84 case 3: 85 currentCounts = &newEventCount[0]; 86 break; 87 88 default: 89 NSK_COMPLAIN1("Unexpected step no: %d\n", step); 90 return NSK_FALSE; 91 } 92 93 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 94 95 curr = (jvmtiEvent) (i + JVMTI_MIN_EVENT_TYPE_VAL); 96 97 switch (step) { 98 case 1: 99 isExpected = ((curr == JVMTI_EVENT_VM_INIT) 100 || (curr == JVMTI_EVENT_BREAKPOINT)); 101 break; 102 103 case 2: 104 isExpected = (curr == JVMTI_EVENT_BREAKPOINT); 105 break; 106 107 case 3: 108 isExpected = (curr == JVMTI_EVENT_VM_DEATH); 109 break; 110 } 111 112 if (isExpected) { 113 if (curr != JVMTI_EVENT_BREAKPOINT) { 114 if (currentCounts[i] < 1) { 115 NSK_COMPLAIN2("Unexpected events number %7d for %s\n\texpected value must be greater than 1\n", 116 currentCounts[i], 117 TranslateEvent(curr)); 118 result = NSK_FALSE; 119 } 120 } else { 121 if (currentCounts[i] != NUMBER_OF_INVOCATIONS) { 122 NSK_COMPLAIN3("Unexpected number of %s events %d, expected value is %d\n", 123 TranslateEvent(curr), 124 currentCounts[i], 125 NUMBER_OF_INVOCATIONS); 126 result = NSK_FALSE; 127 } 128 } 129 130 } else { 131 132 if (currentCounts[i] > 0) { 133 NSK_COMPLAIN2("Unexpected event %s was sent %d times\n", 134 TranslateEvent(curr), 135 currentCounts[i]); 136 result = NSK_FALSE; 137 } 138 } 139 } 140 141 return result; 142 } 143 144 static void 145 changeCount(jvmtiEvent event, int *currentCounts) { 146 147 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorEnter, jvmti, syncLock))) 148 nsk_jvmti_setFailStatus(); 149 150 currentCounts[event - JVMTI_MIN_EVENT_TYPE_VAL]++; 151 152 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorExit, jvmti, syncLock))) 153 nsk_jvmti_setFailStatus(); 154 155 } 156 157 /* ============================================================================= */ 158 159 /* callbacks */ 160 JNIEXPORT void JNICALL 161 cbVMInit(jvmtiEnv* jvmti, JNIEnv* jni_env, jthread thread) { 162 changeCount(JVMTI_EVENT_VM_INIT, &eventCount[0]); 163 } 164 165 JNIEXPORT void JNICALL 166 cbVMDeath(jvmtiEnv* jvmti, JNIEnv* jni_env) { 167 changeCount(JVMTI_EVENT_VM_DEATH, &newEventCount[0]); 168 showEventStatistics(STEP_NUMBER); 169 if (!checkEvents(STEP_NUMBER)) 170 nsk_jvmti_setFailStatus(); 171 172 if (!NSK_JVMTI_VERIFY( 173 NSK_CPP_STUB2(DestroyRawMonitor, jvmti, syncLock))) 174 nsk_jvmti_setFailStatus(); 175 176 } 177 178 void JNICALL 179 cbException(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 180 jmethodID method, jlocation location, jobject exception, 181 jmethodID catch_method, jlocation catch_location) { 182 183 changeCount(JVMTI_EVENT_EXCEPTION, &eventCount[0]); 184 } 185 186 void JNICALL 187 cbExceptionCatch(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 188 jmethodID method, jlocation location, jobject exception) { 189 190 changeCount(JVMTI_EVENT_EXCEPTION_CATCH, &eventCount[0]); 191 } 192 193 void JNICALL 194 cbSingleStep(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 195 jmethodID method, jlocation location) { 196 197 changeCount(JVMTI_EVENT_SINGLE_STEP, &eventCount[0]); 198 } 199 200 void JNICALL 201 cbFramePop(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 202 jmethodID method, jboolean was_popped_by_exception) { 203 changeCount(JVMTI_EVENT_FRAME_POP, &eventCount[0]); 204 } 205 206 void JNICALL 207 cbBreakpoint(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 208 jmethodID method, jlocation location) { 209 210 changeCount(JVMTI_EVENT_BREAKPOINT, &eventCount[0]); 211 } 212 213 void JNICALL 214 cbNewBreakpoint(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 215 jmethodID method, jlocation location) { 216 217 changeCount(JVMTI_EVENT_BREAKPOINT, &newEventCount[0]); 218 } 219 220 void JNICALL 221 cbFieldAccess(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 222 jmethodID method, jlocation location, jclass field_klass, 223 jobject object, jfieldID field) { 224 225 changeCount(JVMTI_EVENT_FIELD_ACCESS, &eventCount[0]); 226 } 227 228 void JNICALL 229 cbFieldModification(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 230 jmethodID method, jlocation location, jclass field_klass, 231 jobject object, jfieldID field, char signature_type, 232 jvalue new_value) { 233 234 changeCount(JVMTI_EVENT_FIELD_MODIFICATION, &eventCount[0]); 235 } 236 237 void JNICALL 238 cbMethodEntry(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 239 jmethodID method) { 240 241 changeCount(JVMTI_EVENT_METHOD_ENTRY, &eventCount[0]); 242 } 243 244 void JNICALL 245 cbMethodExit(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 246 jmethodID method, jboolean was_popped_by_exception, 247 jvalue return_value) { 248 249 changeCount(JVMTI_EVENT_METHOD_EXIT, &eventCount[0]); 250 } 251 252 void JNICALL 253 cbNativeMethodBind(jvmtiEnv *jvmti_env, JNIEnv* jni_env,jthread thread, 254 jmethodID method, void* address, void** new_address_ptr) { 255 changeCount(JVMTI_EVENT_NATIVE_METHOD_BIND, &eventCount[0]); 256 } 257 258 void JNICALL 259 cbMonitorWait(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 260 jobject object, jlong tout) { 261 262 changeCount(JVMTI_EVENT_MONITOR_WAIT, &eventCount[0]); 263 } 264 265 void JNICALL 266 cbMonitorWaited(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 267 jobject object, jboolean timed_out) { 268 269 changeCount(JVMTI_EVENT_MONITOR_WAITED, &eventCount[0]); 270 } 271 272 JNIEXPORT void JNICALL 273 cbMonitorContendedEnter(jvmtiEnv* jvmti, JNIEnv* jni_env, jthread thread, 274 jobject object) { 275 276 changeCount(JVMTI_EVENT_MONITOR_CONTENDED_ENTER, &eventCount[0]); 277 } 278 279 void JNICALL 280 cbMonitorContendedEntered(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 281 jobject object) { 282 283 changeCount(JVMTI_EVENT_MONITOR_CONTENDED_ENTERED, &eventCount[0]); 284 } 285 286 void JNICALL 287 cbCompiledMethodLoad(jvmtiEnv *jvmti_env, jmethodID method, jint code_size, 288 const void* code_addr, jint map_length, 289 const jvmtiAddrLocationMap* map, const void* compile_info) { 290 changeCount(JVMTI_EVENT_COMPILED_METHOD_LOAD, &eventCount[0]); 291 } 292 293 void JNICALL 294 cbCompiledMethodUnload(jvmtiEnv *jvmti_env, jmethodID method, 295 const void* code_addr) { 296 changeCount(JVMTI_EVENT_COMPILED_METHOD_UNLOAD, &eventCount[0]); 297 } 298 299 void JNICALL 300 cbGarbageCollectionStart(jvmtiEnv *jvmti_env) { 301 changeCount(JVMTI_EVENT_GARBAGE_COLLECTION_START, &eventCount[0]); 302 } 303 304 void JNICALL 305 cbGarbageCollectionFinish(jvmtiEnv *jvmti_env) { 306 changeCount(JVMTI_EVENT_GARBAGE_COLLECTION_FINISH, &eventCount[0]); 307 } 308 309 void JNICALL 310 cbObjectFree(jvmtiEnv *jvmti_env, jlong tag) { 311 312 changeCount(JVMTI_EVENT_OBJECT_FREE, &eventCount[0]); 313 } 314 315 void JNICALL 316 cbVMObjectAlloc(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread, 317 jobject object, jclass object_klass, jlong size) { 318 319 changeCount(JVMTI_EVENT_VM_OBJECT_ALLOC, &eventCount[0]); 320 } 321 322 /* ============================================================================= */ 323 324 static int enableEvent(jvmtiEvent event) { 325 326 if (nsk_jvmti_isOptionalEvent(event) 327 && (event != JVMTI_EVENT_BREAKPOINT)) { 328 if (!NSK_JVMTI_VERIFY_CODE(JVMTI_ERROR_MUST_POSSESS_CAPABILITY, 329 NSK_CPP_STUB4(SetEventNotificationMode, jvmti, 330 JVMTI_ENABLE, event, NULL))) { 331 NSK_COMPLAIN1("Unexpected error enabling %s\n", 332 TranslateEvent(event)); 333 return NSK_FALSE; 334 } 335 } else { 336 if (!NSK_JVMTI_VERIFY( 337 NSK_CPP_STUB4(SetEventNotificationMode, jvmti, 338 JVMTI_ENABLE, event, NULL))) { 339 NSK_COMPLAIN1("Unexpected error enabling %s\n", 340 TranslateEvent(event)); 341 return NSK_FALSE; 342 } 343 } 344 345 return NSK_TRUE; 346 } 347 348 /** 349 * Enable or disable tested events. 350 */ 351 static int enableEventList() { 352 353 int i, result; 354 355 result = enableEvent(JVMTI_EVENT_VM_INIT); 356 357 result = result && enableEvent(JVMTI_EVENT_VM_DEATH); 358 359 /* enabling optional events */ 360 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 361 jvmtiEvent event = (jvmtiEvent)(i+JVMTI_MIN_EVENT_TYPE_VAL); 362 363 if (nsk_jvmti_isOptionalEvent(event)) 364 result = result && enableEvent(event); 365 } 366 367 if (result == NSK_FALSE) { 368 nsk_jvmti_setFailStatus(); 369 return NSK_FALSE; 370 } 371 372 return NSK_TRUE; 373 } 374 375 /* ============================================================================= */ 376 377 static int 378 setCallBacks(int step) { 379 380 int i; 381 382 jvmtiEventCallbacks eventCallbacks; 383 memset(&eventCallbacks, 0, sizeof(eventCallbacks)); 384 385 switch (step) { 386 case 1: 387 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 388 eventCount[i] = 0; 389 } 390 391 eventCallbacks.VMInit = cbVMInit; 392 eventCallbacks.Exception = cbException; 393 eventCallbacks.ExceptionCatch = cbExceptionCatch; 394 eventCallbacks.SingleStep = cbSingleStep; 395 eventCallbacks.FramePop = cbFramePop; 396 eventCallbacks.Breakpoint = cbBreakpoint; 397 eventCallbacks.FieldAccess = cbFieldAccess; 398 eventCallbacks.FieldModification = cbFieldModification; 399 eventCallbacks.MethodEntry = cbMethodEntry; 400 eventCallbacks.MethodExit = cbMethodExit; 401 eventCallbacks.NativeMethodBind = cbNativeMethodBind; 402 eventCallbacks.CompiledMethodLoad = cbCompiledMethodLoad; 403 eventCallbacks.CompiledMethodUnload = cbCompiledMethodUnload; 404 eventCallbacks.MonitorWait = cbMonitorWait; 405 eventCallbacks.MonitorWaited = cbMonitorWaited; 406 eventCallbacks.MonitorContendedEnter = cbMonitorContendedEnter; 407 eventCallbacks.MonitorContendedEntered = cbMonitorContendedEntered; 408 eventCallbacks.GarbageCollectionStart = cbGarbageCollectionStart; 409 eventCallbacks.GarbageCollectionFinish = cbGarbageCollectionFinish; 410 eventCallbacks.ObjectFree = cbObjectFree; 411 eventCallbacks.VMObjectAlloc = cbVMObjectAlloc; 412 break; 413 414 case 2: 415 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 416 newEventCount[i] = 0; 417 } 418 419 eventCallbacks.Breakpoint = cbNewBreakpoint; 420 break; 421 422 case 3: 423 for (i = 0; i < JVMTI_EVENT_COUNT; i++) { 424 newEventCount[i] = 0; 425 } 426 427 eventCallbacks.VMDeath = cbVMDeath; 428 break; 429 430 } 431 if (!NSK_JVMTI_VERIFY( 432 NSK_CPP_STUB3(SetEventCallbacks, jvmti, 433 &eventCallbacks, 434 sizeof(eventCallbacks)))) 435 return NSK_FALSE; 436 437 return NSK_TRUE; 438 } 439 440 /* ============================================================================= */ 441 442 /** Agent algorithm. */ 443 static void JNICALL 444 agentProc(jvmtiEnv* jvmti, JNIEnv* agentJNI, void* arg) { 445 446 int i; 447 jmethodID methodID; 448 jclass cls; 449 450 451 if (!nsk_jvmti_waitForSync(timeout)) 452 return; 453 454 if (!NSK_JNI_VERIFY(agentJNI, (cls = 455 NSK_CPP_STUB2(FindClass, agentJNI, CLASS_NAME)) != NULL)) 456 return; 457 458 if (!NSK_JNI_VERIFY(agentJNI, (methodID = 459 NSK_CPP_STUB4(GetStaticMethodID, agentJNI, cls, METHOD_NAME, 460 "()I")) != NULL)) 461 return; 462 463 if (!NSK_JVMTI_VERIFY( 464 NSK_CPP_STUB3(SetBreakpoint, jvmti, methodID, 0))) 465 return; 466 467 if (!nsk_jvmti_resumeSync()) 468 return; 469 470 for (i = 1; i <= STEP_NUMBER; i++) { 471 472 if (!nsk_jvmti_waitForSync(timeout)) 473 return; 474 475 if (i < STEP_NUMBER) { 476 showEventStatistics(i); 477 if (!checkEvents(i)) 478 nsk_jvmti_setFailStatus(); 479 480 if (!setCallBacks(i + 1)) { 481 return; 482 } 483 } 484 485 if (!nsk_jvmti_resumeSync()) 486 return; 487 } 488 489 } 490 491 /* ============================================================================= */ 492 493 /** Agent library initialization. */ 494 #ifdef STATIC_BUILD 495 JNIEXPORT jint JNICALL Agent_OnLoad_em02t011(JavaVM *jvm, char *options, void *reserved) { 496 return Agent_Initialize(jvm, options, reserved); 497 } 498 JNIEXPORT jint JNICALL Agent_OnAttach_em02t011(JavaVM *jvm, char *options, void *reserved) { 499 return Agent_Initialize(jvm, options, reserved); 500 } 501 JNIEXPORT jint JNI_OnLoad_em02t011(JavaVM *jvm, char *options, void *reserved) { 502 return JNI_VERSION_1_8; 503 } 504 #endif 505 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) { 506 507 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options))) 508 return JNI_ERR; 509 510 timeout = nsk_jvmti_getWaitTime() * 60 * 1000; 511 512 if (!NSK_VERIFY((jvmti = nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL)) 513 return JNI_ERR; 514 515 if (!NSK_JVMTI_VERIFY( 516 NSK_CPP_STUB3(CreateRawMonitor, jvmti, "_syncLock", &syncLock))) { 517 nsk_jvmti_setFailStatus(); 518 return JNI_ERR; 519 } 520 521 { 522 jvmtiCapabilities caps; 523 memset(&caps, 0, sizeof(caps)); 524 525 caps.can_generate_breakpoint_events = 1; 526 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps))) 527 return JNI_ERR; 528 } 529 530 if (!setCallBacks(1)) { 531 return JNI_ERR; 532 } 533 534 if (!enableEventList()) { 535 return JNI_ERR; 536 } 537 538 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL))) 539 return JNI_ERR; 540 541 return JNI_OK; 542 } 543 544 /* ============================================================================= */ 545 546 547 }