1 /* 2 * Copyright (c) 1997, 2012, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef _JAVASOFT_JVM_H_ 27 #define _JAVASOFT_JVM_H_ 28 29 #include <sys/stat.h> 30 31 #include "jni.h" 32 #include "jvm_md.h" 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * This file contains additional functions exported from the VM. 40 * These functions are complementary to the standard JNI support. 41 * There are three parts to this file: 42 * 43 * First, this file contains the VM-related functions needed by native 44 * libraries in the standard Java API. For example, the java.lang.Object 45 * class needs VM-level functions that wait for and notify monitors. 46 * 47 * Second, this file contains the functions and constant definitions 48 * needed by the byte code verifier and class file format checker. 49 * These functions allow the verifier and format checker to be written 50 * in a VM-independent way. 51 * 52 * Third, this file contains various I/O and nerwork operations needed 53 * by the standard Java I/O and network APIs. 54 */ 55 56 /* 57 * Bump the version number when either of the following happens: 58 * 59 * 1. There is a change in JVM_* functions. 60 * 61 * 2. There is a change in the contract between VM and Java classes. 62 * For example, if the VM relies on a new private field in Thread 63 * class. 64 */ 65 66 #define JVM_INTERFACE_VERSION 4 67 68 JNIEXPORT jint JNICALL 69 JVM_GetInterfaceVersion(void); 70 71 /************************************************************************* 72 PART 1: Functions for Native Libraries 73 ************************************************************************/ 74 /* 75 * java.lang.Object 76 */ 77 JNIEXPORT jint JNICALL 78 JVM_IHashCode(JNIEnv *env, jobject obj); 79 80 JNIEXPORT void JNICALL 81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms); 82 83 JNIEXPORT void JNICALL 84 JVM_MonitorNotify(JNIEnv *env, jobject obj); 85 86 JNIEXPORT void JNICALL 87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj); 88 89 JNIEXPORT jobject JNICALL 90 JVM_Clone(JNIEnv *env, jobject obj); 91 92 /* 93 * java.lang.String 94 */ 95 JNIEXPORT jstring JNICALL 96 JVM_InternString(JNIEnv *env, jstring str); 97 98 /* 99 * java.lang.System 100 */ 101 JNIEXPORT jlong JNICALL 102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored); 103 104 JNIEXPORT jlong JNICALL 105 JVM_NanoTime(JNIEnv *env, jclass ignored); 106 107 JNIEXPORT void JNICALL 108 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos, 109 jobject dst, jint dst_pos, jint length); 110 111 JNIEXPORT jobject JNICALL 112 JVM_InitProperties(JNIEnv *env, jobject p); 113 114 /* 115 * java.io.File 116 */ 117 JNIEXPORT void JNICALL 118 JVM_OnExit(void (*func)(void)); 119 120 /* 121 * java.lang.Runtime 122 */ 123 JNIEXPORT void JNICALL 124 JVM_Exit(jint code); 125 126 JNIEXPORT void JNICALL 127 JVM_Halt(jint code); 128 129 JNIEXPORT void JNICALL 130 JVM_GC(void); 131 132 /* Returns the number of real-time milliseconds that have elapsed since the 133 * least-recently-inspected heap object was last inspected by the garbage 134 * collector. 135 * 136 * For simple stop-the-world collectors this value is just the time 137 * since the most recent collection. For generational collectors it is the 138 * time since the oldest generation was most recently collected. Other 139 * collectors are free to return a pessimistic estimate of the elapsed time, or 140 * simply the time since the last full collection was performed. 141 * 142 * Note that in the presence of reference objects, a given object that is no 143 * longer strongly reachable may have to be inspected multiple times before it 144 * can be reclaimed. 145 */ 146 JNIEXPORT jlong JNICALL 147 JVM_MaxObjectInspectionAge(void); 148 149 JNIEXPORT void JNICALL 150 JVM_TraceInstructions(jboolean on); 151 152 JNIEXPORT void JNICALL 153 JVM_TraceMethodCalls(jboolean on); 154 155 JNIEXPORT jlong JNICALL 156 JVM_TotalMemory(void); 157 158 JNIEXPORT jlong JNICALL 159 JVM_FreeMemory(void); 160 161 JNIEXPORT jlong JNICALL 162 JVM_MaxMemory(void); 163 164 JNIEXPORT jint JNICALL 165 JVM_ActiveProcessorCount(void); 166 167 JNIEXPORT void * JNICALL 168 JVM_LoadLibrary(const char *name); 169 170 JNIEXPORT void JNICALL 171 JVM_UnloadLibrary(void * handle); 172 173 JNIEXPORT void * JNICALL 174 JVM_FindLibraryEntry(void *handle, const char *name); 175 176 JNIEXPORT jboolean JNICALL 177 JVM_IsSupportedJNIVersion(jint version); 178 179 /* 180 * java.lang.Float and java.lang.Double 181 */ 182 JNIEXPORT jboolean JNICALL 183 JVM_IsNaN(jdouble d); 184 185 /* 186 * java.lang.Throwable 187 */ 188 JNIEXPORT void JNICALL 189 JVM_FillInStackTrace(JNIEnv *env, jobject throwable); 190 191 JNIEXPORT void JNICALL 192 JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable); 193 194 JNIEXPORT jint JNICALL 195 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable); 196 197 JNIEXPORT jobject JNICALL 198 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index); 199 200 /* 201 * java.lang.Compiler 202 */ 203 JNIEXPORT void JNICALL 204 JVM_InitializeCompiler (JNIEnv *env, jclass compCls); 205 206 JNIEXPORT jboolean JNICALL 207 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls); 208 209 JNIEXPORT jboolean JNICALL 210 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls); 211 212 JNIEXPORT jboolean JNICALL 213 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname); 214 215 JNIEXPORT jobject JNICALL 216 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg); 217 218 JNIEXPORT void JNICALL 219 JVM_EnableCompiler(JNIEnv *env, jclass compCls); 220 221 JNIEXPORT void JNICALL 222 JVM_DisableCompiler(JNIEnv *env, jclass compCls); 223 224 /* 225 * java.lang.Thread 226 */ 227 JNIEXPORT void JNICALL 228 JVM_StartThread(JNIEnv *env, jobject thread); 229 230 JNIEXPORT void JNICALL 231 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception); 232 233 JNIEXPORT jboolean JNICALL 234 JVM_IsThreadAlive(JNIEnv *env, jobject thread); 235 236 JNIEXPORT void JNICALL 237 JVM_SuspendThread(JNIEnv *env, jobject thread); 238 239 JNIEXPORT void JNICALL 240 JVM_ResumeThread(JNIEnv *env, jobject thread); 241 242 JNIEXPORT void JNICALL 243 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio); 244 245 JNIEXPORT void JNICALL 246 JVM_Yield(JNIEnv *env, jclass threadClass); 247 248 JNIEXPORT void JNICALL 249 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis); 250 251 JNIEXPORT jobject JNICALL 252 JVM_CurrentThread(JNIEnv *env, jclass threadClass); 253 254 JNIEXPORT jint JNICALL 255 JVM_CountStackFrames(JNIEnv *env, jobject thread); 256 257 JNIEXPORT void JNICALL 258 JVM_Interrupt(JNIEnv *env, jobject thread); 259 260 JNIEXPORT jboolean JNICALL 261 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted); 262 263 JNIEXPORT jboolean JNICALL 264 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj); 265 266 JNIEXPORT void JNICALL 267 JVM_DumpAllStacks(JNIEnv *env, jclass unused); 268 269 JNIEXPORT jobjectArray JNICALL 270 JVM_GetAllThreads(JNIEnv *env, jclass dummy); 271 272 JNIEXPORT void JNICALL 273 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name); 274 275 /* getStackTrace() and getAllStackTraces() method */ 276 JNIEXPORT jobjectArray JNICALL 277 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads); 278 279 /* 280 * java.lang.SecurityManager 281 */ 282 JNIEXPORT jclass JNICALL 283 JVM_CurrentLoadedClass(JNIEnv *env); 284 285 JNIEXPORT jobject JNICALL 286 JVM_CurrentClassLoader(JNIEnv *env); 287 288 JNIEXPORT jobjectArray JNICALL 289 JVM_GetClassContext(JNIEnv *env); 290 291 JNIEXPORT jint JNICALL 292 JVM_ClassDepth(JNIEnv *env, jstring name); 293 294 JNIEXPORT jint JNICALL 295 JVM_ClassLoaderDepth(JNIEnv *env); 296 297 /* 298 * java.lang.Package 299 */ 300 JNIEXPORT jstring JNICALL 301 JVM_GetSystemPackage(JNIEnv *env, jstring name); 302 303 JNIEXPORT jobjectArray JNICALL 304 JVM_GetSystemPackages(JNIEnv *env); 305 306 /* 307 * java.io.ObjectInputStream 308 */ 309 JNIEXPORT jobject JNICALL 310 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass, 311 jclass initClass); 312 313 JNIEXPORT jobject JNICALL 314 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass, 315 jint length); 316 317 JNIEXPORT jobject JNICALL 318 JVM_LatestUserDefinedLoader(JNIEnv *env); 319 320 /* 321 * This function has been deprecated and should not be considered 322 * part of the specified JVM interface. 323 */ 324 JNIEXPORT jclass JNICALL 325 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass, 326 jstring currClassName); 327 328 /* 329 * java.lang.reflect.Array 330 */ 331 JNIEXPORT jint JNICALL 332 JVM_GetArrayLength(JNIEnv *env, jobject arr); 333 334 JNIEXPORT jobject JNICALL 335 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index); 336 337 JNIEXPORT jvalue JNICALL 338 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode); 339 340 JNIEXPORT void JNICALL 341 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val); 342 343 JNIEXPORT void JNICALL 344 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, 345 unsigned char vCode); 346 347 JNIEXPORT jobject JNICALL 348 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length); 349 350 JNIEXPORT jobject JNICALL 351 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim); 352 353 /* 354 * java.lang.Class and java.lang.ClassLoader 355 */ 356 /* 357 * Returns the class in which the code invoking the native method 358 * belongs. 359 * 360 * Note that in JDK 1.1, native methods did not create a frame. 361 * In 1.2, they do. Therefore native methods like Class.forName 362 * can no longer look at the current frame for the caller class. 363 */ 364 JNIEXPORT jclass JNICALL 365 JVM_GetCallerClass(JNIEnv *env, int n); 366 367 /* 368 * Find primitive classes 369 * utf: class name 370 */ 371 JNIEXPORT jclass JNICALL 372 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf); 373 374 /* 375 * Link the class 376 */ 377 JNIEXPORT void JNICALL 378 JVM_ResolveClass(JNIEnv *env, jclass cls); 379 380 /* 381 * Find a class from a boot class loader. Returns NULL if class not found. 382 */ 383 JNIEXPORT jclass JNICALL 384 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name); 385 386 /* 387 * Find a class from a given class loader. Throw ClassNotFoundException 388 * or NoClassDefFoundError depending on the value of the last 389 * argument. 390 */ 391 JNIEXPORT jclass JNICALL 392 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init, 393 jobject loader, jboolean throwError); 394 395 /* 396 * Find a class from a given class. 397 */ 398 JNIEXPORT jclass JNICALL 399 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init, 400 jclass from); 401 402 /* Find a loaded class cached by the VM */ 403 JNIEXPORT jclass JNICALL 404 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name); 405 406 /* Define a class */ 407 JNIEXPORT jclass JNICALL 408 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, 409 jsize len, jobject pd); 410 411 /* Define a class with a source (added in JDK1.5) */ 412 JNIEXPORT jclass JNICALL 413 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, 414 const jbyte *buf, jsize len, jobject pd, 415 const char *source); 416 417 /* 418 * Reflection support functions 419 */ 420 421 JNIEXPORT jstring JNICALL 422 JVM_GetClassName(JNIEnv *env, jclass cls); 423 424 JNIEXPORT jobjectArray JNICALL 425 JVM_GetClassInterfaces(JNIEnv *env, jclass cls); 426 427 JNIEXPORT jobject JNICALL 428 JVM_GetClassLoader(JNIEnv *env, jclass cls); 429 430 JNIEXPORT jboolean JNICALL 431 JVM_IsInterface(JNIEnv *env, jclass cls); 432 433 JNIEXPORT jobjectArray JNICALL 434 JVM_GetClassSigners(JNIEnv *env, jclass cls); 435 436 JNIEXPORT void JNICALL 437 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers); 438 439 JNIEXPORT jobject JNICALL 440 JVM_GetProtectionDomain(JNIEnv *env, jclass cls); 441 442 JNIEXPORT void JNICALL 443 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain); 444 445 JNIEXPORT jboolean JNICALL 446 JVM_IsArrayClass(JNIEnv *env, jclass cls); 447 448 JNIEXPORT jboolean JNICALL 449 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls); 450 451 JNIEXPORT jclass JNICALL 452 JVM_GetComponentType(JNIEnv *env, jclass cls); 453 454 JNIEXPORT jint JNICALL 455 JVM_GetClassModifiers(JNIEnv *env, jclass cls); 456 457 JNIEXPORT jobjectArray JNICALL 458 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass); 459 460 JNIEXPORT jclass JNICALL 461 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass); 462 463 /* Generics support (JDK 1.5) */ 464 JNIEXPORT jstring JNICALL 465 JVM_GetClassSignature(JNIEnv *env, jclass cls); 466 467 /* Annotations support (JDK 1.5) */ 468 JNIEXPORT jbyteArray JNICALL 469 JVM_GetClassAnnotations(JNIEnv *env, jclass cls); 470 471 /* 472 * New (JDK 1.4) reflection implementation 473 */ 474 475 JNIEXPORT jobjectArray JNICALL 476 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly); 477 478 JNIEXPORT jobjectArray JNICALL 479 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly); 480 481 JNIEXPORT jobjectArray JNICALL 482 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly); 483 484 /* Differs from JVM_GetClassModifiers in treatment of inner classes. 485 This returns the access flags for the class as specified in the 486 class file rather than searching the InnerClasses attribute (if 487 present) to find the source-level access flags. Only the values of 488 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be 489 valid. */ 490 JNIEXPORT jint JNICALL 491 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls); 492 493 /* The following two reflection routines are still needed due to startup time issues */ 494 /* 495 * java.lang.reflect.Method 496 */ 497 JNIEXPORT jobject JNICALL 498 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 499 500 /* 501 * java.lang.reflect.Constructor 502 */ 503 JNIEXPORT jobject JNICALL 504 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 505 506 /* 507 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5) 508 */ 509 510 JNIEXPORT jobject JNICALL 511 JVM_GetClassConstantPool(JNIEnv *env, jclass cls); 512 513 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize 514 (JNIEnv *env, jobject unused, jobject jcpool); 515 516 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt 517 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 518 519 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded 520 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 521 522 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt 523 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 524 525 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded 526 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 527 528 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt 529 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 530 531 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded 532 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 533 534 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt 535 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 536 537 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt 538 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 539 540 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt 541 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 542 543 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt 544 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 545 546 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt 547 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 548 549 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt 550 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 551 552 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At 553 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 554 555 /* 556 * Parameter reflection 557 */ 558 559 JNIEXPORT jobjectArray JNICALL 560 JVM_GetMethodParameters(JNIEnv *env, jobject method); 561 562 /* 563 * java.security.* 564 */ 565 566 JNIEXPORT jobject JNICALL 567 JVM_DoPrivileged(JNIEnv *env, jclass cls, 568 jobject action, jobject context, jboolean wrapException); 569 570 JNIEXPORT jobject JNICALL 571 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls); 572 573 JNIEXPORT jobject JNICALL 574 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls); 575 576 /* 577 * Signal support, used to implement the shutdown sequence. Every VM must 578 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts 579 * (^C) and the latter for external termination (kill, system shutdown, etc.). 580 * Other platform-dependent signal values may also be supported. 581 */ 582 583 JNIEXPORT void * JNICALL 584 JVM_RegisterSignal(jint sig, void *handler); 585 586 JNIEXPORT jboolean JNICALL 587 JVM_RaiseSignal(jint sig); 588 589 JNIEXPORT jint JNICALL 590 JVM_FindSignal(const char *name); 591 592 /* 593 * Retrieve the assertion directives for the specified class. 594 */ 595 JNIEXPORT jboolean JNICALL 596 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls); 597 598 /* 599 * Retrieve the assertion directives from the VM. 600 */ 601 JNIEXPORT jobject JNICALL 602 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused); 603 604 /* 605 * java.util.concurrent.atomic.AtomicLong 606 */ 607 JNIEXPORT jboolean JNICALL 608 JVM_SupportsCX8(void); 609 610 /* 611 * com.sun.dtrace.jsdt support 612 */ 613 614 #define JVM_TRACING_DTRACE_VERSION 1 615 616 /* 617 * Structure to pass one probe description to JVM 618 */ 619 typedef struct { 620 jmethodID method; 621 jstring function; 622 jstring name; 623 void* reserved[4]; // for future use 624 } JVM_DTraceProbe; 625 626 /** 627 * Encapsulates the stability ratings for a DTrace provider field 628 */ 629 typedef struct { 630 jint nameStability; 631 jint dataStability; 632 jint dependencyClass; 633 } JVM_DTraceInterfaceAttributes; 634 635 /* 636 * Structure to pass one provider description to JVM 637 */ 638 typedef struct { 639 jstring name; 640 JVM_DTraceProbe* probes; 641 jint probe_count; 642 JVM_DTraceInterfaceAttributes providerAttributes; 643 JVM_DTraceInterfaceAttributes moduleAttributes; 644 JVM_DTraceInterfaceAttributes functionAttributes; 645 JVM_DTraceInterfaceAttributes nameAttributes; 646 JVM_DTraceInterfaceAttributes argsAttributes; 647 void* reserved[4]; // for future use 648 } JVM_DTraceProvider; 649 650 /* 651 * Get the version number the JVM was built with 652 */ 653 JNIEXPORT jint JNICALL 654 JVM_DTraceGetVersion(JNIEnv* env); 655 656 /* 657 * Register new probe with given signature, return global handle 658 * 659 * The version passed in is the version that the library code was 660 * built with. 661 */ 662 JNIEXPORT jlong JNICALL 663 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name, 664 jint providers_count, JVM_DTraceProvider* providers); 665 666 /* 667 * Check JSDT probe 668 */ 669 JNIEXPORT jboolean JNICALL 670 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method); 671 672 /* 673 * Destroy custom DOF 674 */ 675 JNIEXPORT void JNICALL 676 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle); 677 678 /* 679 * Check to see if DTrace is supported by OS 680 */ 681 JNIEXPORT jboolean JNICALL 682 JVM_DTraceIsSupported(JNIEnv* env); 683 684 /************************************************************************* 685 PART 2: Support for the Verifier and Class File Format Checker 686 ************************************************************************/ 687 /* 688 * Return the class name in UTF format. The result is valid 689 * until JVM_ReleaseUTf is called. 690 * 691 * The caller must treat the string as a constant and not modify it 692 * in any way. 693 */ 694 JNIEXPORT const char * JNICALL 695 JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 696 697 /* 698 * Returns the constant pool types in the buffer provided by "types." 699 */ 700 JNIEXPORT void JNICALL 701 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 702 703 /* 704 * Returns the number of Constant Pool entries. 705 */ 706 JNIEXPORT jint JNICALL 707 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 708 709 /* 710 * Returns the number of *declared* fields or methods. 711 */ 712 JNIEXPORT jint JNICALL 713 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 714 715 JNIEXPORT jint JNICALL 716 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 717 718 /* 719 * Returns the CP indexes of exceptions raised by a given method. 720 * Places the result in the given buffer. 721 * 722 * The method is identified by method_index. 723 */ 724 JNIEXPORT void JNICALL 725 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 726 unsigned short *exceptions); 727 /* 728 * Returns the number of exceptions raised by a given method. 729 * The method is identified by method_index. 730 */ 731 JNIEXPORT jint JNICALL 732 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 733 734 /* 735 * Returns the byte code sequence of a given method. 736 * Places the result in the given buffer. 737 * 738 * The method is identified by method_index. 739 */ 740 JNIEXPORT void JNICALL 741 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 742 unsigned char *code); 743 744 /* 745 * Returns the length of the byte code sequence of a given method. 746 * The method is identified by method_index. 747 */ 748 JNIEXPORT jint JNICALL 749 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 750 751 /* 752 * A structure used to a capture exception table entry in a Java method. 753 */ 754 typedef struct { 755 jint start_pc; 756 jint end_pc; 757 jint handler_pc; 758 jint catchType; 759 } JVM_ExceptionTableEntryType; 760 761 /* 762 * Returns the exception table entry at entry_index of a given method. 763 * Places the result in the given buffer. 764 * 765 * The method is identified by method_index. 766 */ 767 JNIEXPORT void JNICALL 768 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 769 jint entry_index, 770 JVM_ExceptionTableEntryType *entry); 771 772 /* 773 * Returns the length of the exception table of a given method. 774 * The method is identified by method_index. 775 */ 776 JNIEXPORT jint JNICALL 777 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 778 779 /* 780 * Returns the modifiers of a given field. 781 * The field is identified by field_index. 782 */ 783 JNIEXPORT jint JNICALL 784 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 785 786 /* 787 * Returns the modifiers of a given method. 788 * The method is identified by method_index. 789 */ 790 JNIEXPORT jint JNICALL 791 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 792 793 /* 794 * Returns the number of local variables of a given method. 795 * The method is identified by method_index. 796 */ 797 JNIEXPORT jint JNICALL 798 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 799 800 /* 801 * Returns the number of arguments (including this pointer) of a given method. 802 * The method is identified by method_index. 803 */ 804 JNIEXPORT jint JNICALL 805 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 806 807 /* 808 * Returns the maximum amount of stack (in words) used by a given method. 809 * The method is identified by method_index. 810 */ 811 JNIEXPORT jint JNICALL 812 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 813 814 /* 815 * Is a given method a constructor. 816 * The method is identified by method_index. 817 */ 818 JNIEXPORT jboolean JNICALL 819 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 820 821 /* 822 * Returns the name of a given method in UTF format. 823 * The result remains valid until JVM_ReleaseUTF is called. 824 * 825 * The caller must treat the string as a constant and not modify it 826 * in any way. 827 */ 828 JNIEXPORT const char * JNICALL 829 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 830 831 /* 832 * Returns the signature of a given method in UTF format. 833 * The result remains valid until JVM_ReleaseUTF is called. 834 * 835 * The caller must treat the string as a constant and not modify it 836 * in any way. 837 */ 838 JNIEXPORT const char * JNICALL 839 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 840 841 /* 842 * Returns the name of the field refered to at a given constant pool 843 * index. 844 * 845 * The result is in UTF format and remains valid until JVM_ReleaseUTF 846 * is called. 847 * 848 * The caller must treat the string as a constant and not modify it 849 * in any way. 850 */ 851 JNIEXPORT const char * JNICALL 852 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 853 854 /* 855 * Returns the name of the method refered to at a given constant pool 856 * index. 857 * 858 * The result is in UTF format and remains valid until JVM_ReleaseUTF 859 * is called. 860 * 861 * The caller must treat the string as a constant and not modify it 862 * in any way. 863 */ 864 JNIEXPORT const char * JNICALL 865 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 866 867 /* 868 * Returns the signature of the method refered to at a given constant pool 869 * index. 870 * 871 * The result is in UTF format and remains valid until JVM_ReleaseUTF 872 * is called. 873 * 874 * The caller must treat the string as a constant and not modify it 875 * in any way. 876 */ 877 JNIEXPORT const char * JNICALL 878 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 879 880 /* 881 * Returns the signature of the field refered to at a given constant pool 882 * index. 883 * 884 * The result is in UTF format and remains valid until JVM_ReleaseUTF 885 * is called. 886 * 887 * The caller must treat the string as a constant and not modify it 888 * in any way. 889 */ 890 JNIEXPORT const char * JNICALL 891 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 892 893 /* 894 * Returns the class name refered to at a given constant pool index. 895 * 896 * The result is in UTF format and remains valid until JVM_ReleaseUTF 897 * is called. 898 * 899 * The caller must treat the string as a constant and not modify it 900 * in any way. 901 */ 902 JNIEXPORT const char * JNICALL 903 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 904 905 /* 906 * Returns the class name refered to at a given constant pool index. 907 * 908 * The constant pool entry must refer to a CONSTANT_Fieldref. 909 * 910 * The result is in UTF format and remains valid until JVM_ReleaseUTF 911 * is called. 912 * 913 * The caller must treat the string as a constant and not modify it 914 * in any way. 915 */ 916 JNIEXPORT const char * JNICALL 917 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 918 919 /* 920 * Returns the class name refered to at a given constant pool index. 921 * 922 * The constant pool entry must refer to CONSTANT_Methodref or 923 * CONSTANT_InterfaceMethodref. 924 * 925 * The result is in UTF format and remains valid until JVM_ReleaseUTF 926 * is called. 927 * 928 * The caller must treat the string as a constant and not modify it 929 * in any way. 930 */ 931 JNIEXPORT const char * JNICALL 932 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 933 934 /* 935 * Returns the modifiers of a field in calledClass. The field is 936 * referred to in class cb at constant pool entry index. 937 * 938 * The caller must treat the string as a constant and not modify it 939 * in any way. 940 * 941 * Returns -1 if the field does not exist in calledClass. 942 */ 943 JNIEXPORT jint JNICALL 944 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 945 946 /* 947 * Returns the modifiers of a method in calledClass. The method is 948 * referred to in class cb at constant pool entry index. 949 * 950 * Returns -1 if the method does not exist in calledClass. 951 */ 952 JNIEXPORT jint JNICALL 953 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 954 955 /* 956 * Releases the UTF string obtained from the VM. 957 */ 958 JNIEXPORT void JNICALL 959 JVM_ReleaseUTF(const char *utf); 960 961 /* 962 * Compare if two classes are in the same package. 963 */ 964 JNIEXPORT jboolean JNICALL 965 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 966 967 /* Get classfile constants */ 968 #include "classfile_constants.h" 969 970 /* 971 * A function defined by the byte-code verifier and called by the VM. 972 * This is not a function implemented in the VM. 973 * 974 * Returns JNI_FALSE if verification fails. A detailed error message 975 * will be places in msg_buf, whose length is specified by buf_len. 976 */ 977 typedef jboolean (*verifier_fn_t)(JNIEnv *env, 978 jclass cb, 979 char * msg_buf, 980 jint buf_len); 981 982 983 /* 984 * Support for a VM-independent class format checker. 985 */ 986 typedef struct { 987 unsigned long code; /* byte code */ 988 unsigned long excs; /* exceptions */ 989 unsigned long etab; /* catch table */ 990 unsigned long lnum; /* line number */ 991 unsigned long lvar; /* local vars */ 992 } method_size_info; 993 994 typedef struct { 995 unsigned int constants; /* constant pool */ 996 unsigned int fields; 997 unsigned int methods; 998 unsigned int interfaces; 999 unsigned int fields2; /* number of static 2-word fields */ 1000 unsigned int innerclasses; /* # of records in InnerClasses attr */ 1001 1002 method_size_info clinit; /* memory used in clinit */ 1003 method_size_info main; /* used everywhere else */ 1004 } class_size_info; 1005 1006 /* 1007 * Functions defined in libjava.so to perform string conversions. 1008 * 1009 */ 1010 1011 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str); 1012 1013 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b); 1014 1015 /* This is the function defined in libjava.so that performs class 1016 * format checks. This functions fills in size information about 1017 * the class file and returns: 1018 * 1019 * 0: good 1020 * -1: out of memory 1021 * -2: bad format 1022 * -3: unsupported version 1023 * -4: bad class name 1024 */ 1025 1026 typedef jint (*check_format_fn_t)(char *class_name, 1027 unsigned char *data, 1028 unsigned int data_size, 1029 class_size_info *class_size, 1030 char *message_buffer, 1031 jint buffer_length, 1032 jboolean measure_only, 1033 jboolean check_relaxed); 1034 1035 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \ 1036 JVM_ACC_FINAL | \ 1037 JVM_ACC_SUPER | \ 1038 JVM_ACC_INTERFACE | \ 1039 JVM_ACC_ABSTRACT | \ 1040 JVM_ACC_ANNOTATION | \ 1041 JVM_ACC_ENUM | \ 1042 JVM_ACC_SYNTHETIC) 1043 1044 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \ 1045 JVM_ACC_PRIVATE | \ 1046 JVM_ACC_PROTECTED | \ 1047 JVM_ACC_STATIC | \ 1048 JVM_ACC_FINAL | \ 1049 JVM_ACC_VOLATILE | \ 1050 JVM_ACC_TRANSIENT | \ 1051 JVM_ACC_ENUM | \ 1052 JVM_ACC_SYNTHETIC) 1053 1054 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \ 1055 JVM_ACC_PRIVATE | \ 1056 JVM_ACC_PROTECTED | \ 1057 JVM_ACC_STATIC | \ 1058 JVM_ACC_FINAL | \ 1059 JVM_ACC_SYNCHRONIZED | \ 1060 JVM_ACC_BRIDGE | \ 1061 JVM_ACC_VARARGS | \ 1062 JVM_ACC_NATIVE | \ 1063 JVM_ACC_ABSTRACT | \ 1064 JVM_ACC_STRICT | \ 1065 JVM_ACC_SYNTHETIC) 1066 1067 /* 1068 * This is the function defined in libjava.so to perform path 1069 * canonicalization. VM call this function before opening jar files 1070 * to load system classes. 1071 * 1072 */ 1073 1074 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len); 1075 1076 /************************************************************************* 1077 PART 3: I/O and Network Support 1078 ************************************************************************/ 1079 1080 /* Note that the JVM IO functions are expected to return JVM_IO_ERR 1081 * when there is any kind of error. The caller can then use the 1082 * platform specific support (e.g., errno) to get the detailed 1083 * error info. The JVM_GetLastErrorString procedure may also be used 1084 * to obtain a descriptive error string. 1085 */ 1086 #define JVM_IO_ERR (-1) 1087 1088 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO 1089 * operation has been disrupted by Thread.interrupt. There are a 1090 * number of technical difficulties related to interruptible IO that 1091 * need to be solved. For example, most existing programs do not handle 1092 * InterruptedIOExceptions specially, they simply treat those as any 1093 * IOExceptions, which typically indicate fatal errors. 1094 * 1095 * There are also two modes of operation for interruptible IO. In the 1096 * resumption mode, an interrupted IO operation is guaranteed not to 1097 * have any side-effects, and can be restarted. In the termination mode, 1098 * an interrupted IO operation corrupts the underlying IO stream, so 1099 * that the only reasonable operation on an interrupted stream is to 1100 * close that stream. The resumption mode seems to be impossible to 1101 * implement on Win32 and Solaris. Implementing the termination mode is 1102 * easier, but it's not clear that's the right semantics. 1103 * 1104 * Interruptible IO is not supported on Win32.It can be enabled/disabled 1105 * using a compile-time flag on Solaris. Third-party JVM ports do not 1106 * need to implement interruptible IO. 1107 */ 1108 #define JVM_IO_INTR (-2) 1109 1110 /* Write a string into the given buffer, in the platform's local encoding, 1111 * that describes the most recent system-level error to occur in this thread. 1112 * Return the length of the string or zero if no error occurred. 1113 */ 1114 JNIEXPORT jint JNICALL 1115 JVM_GetLastErrorString(char *buf, int len); 1116 1117 /* 1118 * Convert a pathname into native format. This function does syntactic 1119 * cleanup, such as removing redundant separator characters. It modifies 1120 * the given pathname string in place. 1121 */ 1122 JNIEXPORT char * JNICALL 1123 JVM_NativePath(char *); 1124 1125 /* 1126 * JVM I/O error codes 1127 */ 1128 #define JVM_EEXIST -100 1129 1130 /* 1131 * Open a file descriptor. This function returns a negative error code 1132 * on error, and a non-negative integer that is the file descriptor on 1133 * success. 1134 */ 1135 JNIEXPORT jint JNICALL 1136 JVM_Open(const char *fname, jint flags, jint mode); 1137 1138 /* 1139 * Close a file descriptor. This function returns -1 on error, and 0 1140 * on success. 1141 * 1142 * fd the file descriptor to close. 1143 */ 1144 JNIEXPORT jint JNICALL 1145 JVM_Close(jint fd); 1146 1147 /* 1148 * Read data from a file decriptor into a char array. 1149 * 1150 * fd the file descriptor to read from. 1151 * buf the buffer where to put the read data. 1152 * nbytes the number of bytes to read. 1153 * 1154 * This function returns -1 on error, and 0 on success. 1155 */ 1156 JNIEXPORT jint JNICALL 1157 JVM_Read(jint fd, char *buf, jint nbytes); 1158 1159 /* 1160 * Write data from a char array to a file decriptor. 1161 * 1162 * fd the file descriptor to read from. 1163 * buf the buffer from which to fetch the data. 1164 * nbytes the number of bytes to write. 1165 * 1166 * This function returns -1 on error, and 0 on success. 1167 */ 1168 JNIEXPORT jint JNICALL 1169 JVM_Write(jint fd, char *buf, jint nbytes); 1170 1171 /* 1172 * Returns the number of bytes available for reading from a given file 1173 * descriptor 1174 */ 1175 JNIEXPORT jint JNICALL 1176 JVM_Available(jint fd, jlong *pbytes); 1177 1178 /* 1179 * Move the file descriptor pointer from whence by offset. 1180 * 1181 * fd the file descriptor to move. 1182 * offset the number of bytes to move it by. 1183 * whence the start from where to move it. 1184 * 1185 * This function returns the resulting pointer location. 1186 */ 1187 JNIEXPORT jlong JNICALL 1188 JVM_Lseek(jint fd, jlong offset, jint whence); 1189 1190 /* 1191 * Set the length of the file associated with the given descriptor to the given 1192 * length. If the new length is longer than the current length then the file 1193 * is extended; the contents of the extended portion are not defined. The 1194 * value of the file pointer is undefined after this procedure returns. 1195 */ 1196 JNIEXPORT jint JNICALL 1197 JVM_SetLength(jint fd, jlong length); 1198 1199 /* 1200 * Synchronize the file descriptor's in memory state with that of the 1201 * physical device. Return of -1 is an error, 0 is OK. 1202 */ 1203 JNIEXPORT jint JNICALL 1204 JVM_Sync(jint fd); 1205 1206 /* 1207 * Networking library support 1208 */ 1209 1210 JNIEXPORT jint JNICALL 1211 JVM_InitializeSocketLibrary(void); 1212 1213 struct sockaddr; 1214 1215 JNIEXPORT jint JNICALL 1216 JVM_Socket(jint domain, jint type, jint protocol); 1217 1218 JNIEXPORT jint JNICALL 1219 JVM_SocketClose(jint fd); 1220 1221 JNIEXPORT jint JNICALL 1222 JVM_SocketShutdown(jint fd, jint howto); 1223 1224 JNIEXPORT jint JNICALL 1225 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags); 1226 1227 JNIEXPORT jint JNICALL 1228 JVM_Send(jint fd, char *buf, jint nBytes, jint flags); 1229 1230 JNIEXPORT jint JNICALL 1231 JVM_Timeout(int fd, long timeout); 1232 1233 JNIEXPORT jint JNICALL 1234 JVM_Listen(jint fd, jint count); 1235 1236 JNIEXPORT jint JNICALL 1237 JVM_Connect(jint fd, struct sockaddr *him, jint len); 1238 1239 JNIEXPORT jint JNICALL 1240 JVM_Bind(jint fd, struct sockaddr *him, jint len); 1241 1242 JNIEXPORT jint JNICALL 1243 JVM_Accept(jint fd, struct sockaddr *him, jint *len); 1244 1245 JNIEXPORT jint JNICALL 1246 JVM_RecvFrom(jint fd, char *buf, int nBytes, 1247 int flags, struct sockaddr *from, int *fromlen); 1248 1249 JNIEXPORT jint JNICALL 1250 JVM_SendTo(jint fd, char *buf, int len, 1251 int flags, struct sockaddr *to, int tolen); 1252 1253 JNIEXPORT jint JNICALL 1254 JVM_SocketAvailable(jint fd, jint *result); 1255 1256 1257 JNIEXPORT jint JNICALL 1258 JVM_GetSockName(jint fd, struct sockaddr *him, int *len); 1259 1260 JNIEXPORT jint JNICALL 1261 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen); 1262 1263 JNIEXPORT jint JNICALL 1264 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen); 1265 1266 JNIEXPORT int JNICALL 1267 JVM_GetHostName(char* name, int namelen); 1268 1269 /* 1270 * The standard printing functions supported by the Java VM. (Should they 1271 * be renamed to JVM_* in the future? 1272 */ 1273 1274 /* 1275 * BE CAREFUL! The following functions do not implement the 1276 * full feature set of standard C printf formats. 1277 */ 1278 int 1279 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1280 1281 int 1282 jio_snprintf(char *str, size_t count, const char *fmt, ...); 1283 1284 int 1285 jio_fprintf(FILE *, const char *fmt, ...); 1286 1287 int 1288 jio_vfprintf(FILE *, const char *fmt, va_list args); 1289 1290 1291 JNIEXPORT void * JNICALL 1292 JVM_RawMonitorCreate(void); 1293 1294 JNIEXPORT void JNICALL 1295 JVM_RawMonitorDestroy(void *mon); 1296 1297 JNIEXPORT jint JNICALL 1298 JVM_RawMonitorEnter(void *mon); 1299 1300 JNIEXPORT void JNICALL 1301 JVM_RawMonitorExit(void *mon); 1302 1303 /* 1304 * java.lang.management support 1305 */ 1306 JNIEXPORT void* JNICALL 1307 JVM_GetManagement(jint version); 1308 1309 /* 1310 * com.sun.tools.attach.VirtualMachine support 1311 * 1312 * Initialize the agent properties with the properties maintained in the VM. 1313 */ 1314 JNIEXPORT jobject JNICALL 1315 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props); 1316 1317 /* Generics reflection support. 1318 * 1319 * Returns information about the given class's EnclosingMethod 1320 * attribute, if present, or null if the class had no enclosing 1321 * method. 1322 * 1323 * If non-null, the returned array contains three elements. Element 0 1324 * is the java.lang.Class of which the enclosing method is a member, 1325 * and elements 1 and 2 are the java.lang.Strings for the enclosing 1326 * method's name and descriptor, respectively. 1327 */ 1328 JNIEXPORT jobjectArray JNICALL 1329 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass); 1330 1331 /* 1332 * Java thread state support 1333 */ 1334 enum { 1335 JAVA_THREAD_STATE_NEW = 0, 1336 JAVA_THREAD_STATE_RUNNABLE = 1, 1337 JAVA_THREAD_STATE_BLOCKED = 2, 1338 JAVA_THREAD_STATE_WAITING = 3, 1339 JAVA_THREAD_STATE_TIMED_WAITING = 4, 1340 JAVA_THREAD_STATE_TERMINATED = 5, 1341 JAVA_THREAD_STATE_COUNT = 6 1342 }; 1343 1344 /* 1345 * Returns an array of the threadStatus values representing the 1346 * given Java thread state. Returns NULL if the VM version is 1347 * incompatible with the JDK or doesn't support the given 1348 * Java thread state. 1349 */ 1350 JNIEXPORT jintArray JNICALL 1351 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState); 1352 1353 /* 1354 * Returns an array of the substate names representing the 1355 * given Java thread state. Returns NULL if the VM version is 1356 * incompatible with the JDK or the VM doesn't support 1357 * the given Java thread state. 1358 * values must be the jintArray returned from JVM_GetThreadStateValues 1359 * and javaThreadState. 1360 */ 1361 JNIEXPORT jobjectArray JNICALL 1362 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values); 1363 1364 /* ========================================================================= 1365 * The following defines a private JVM interface that the JDK can query 1366 * for the JVM version and capabilities. sun.misc.Version defines 1367 * the methods for getting the VM version and its capabilities. 1368 * 1369 * When a new bit is added, the following should be updated to provide 1370 * access to the new capability: 1371 * HS: JVM_GetVersionInfo and Abstract_VM_Version class 1372 * SDK: Version class 1373 * 1374 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for 1375 * JVM to query for the JDK version and capabilities. 1376 * 1377 * When a new bit is added, the following should be updated to provide 1378 * access to the new capability: 1379 * HS: JDK_Version class 1380 * SDK: JDK_GetVersionInfo0 1381 * 1382 * ========================================================================== 1383 */ 1384 typedef struct { 1385 /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */ 1386 unsigned int jvm_version; /* Consists of major, minor, micro (n.n.n) */ 1387 /* and build number (xx) */ 1388 unsigned int update_version : 8; /* Update release version (uu) */ 1389 unsigned int special_update_version : 8; /* Special update release version (c)*/ 1390 unsigned int reserved1 : 16; 1391 unsigned int reserved2; 1392 1393 /* The following bits represents JVM supports that JDK has dependency on. 1394 * JDK can use these bits to determine which JVM version 1395 * and support it has to maintain runtime compatibility. 1396 * 1397 * When a new bit is added in a minor or update release, make sure 1398 * the new bit is also added in the main/baseline. 1399 */ 1400 unsigned int is_attach_supported : 1; 1401 unsigned int is_kernel_jvm : 1; 1402 unsigned int : 30; 1403 unsigned int : 32; 1404 unsigned int : 32; 1405 } jvm_version_info; 1406 1407 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1408 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1409 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1410 1411 /* Build number is available only for RE builds. 1412 * It will be zero for internal builds. 1413 */ 1414 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF)) 1415 1416 JNIEXPORT void JNICALL 1417 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size); 1418 1419 typedef struct { 1420 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx 1421 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */ 1422 /* and build number (xx) */ 1423 unsigned int update_version : 8; /* Update release version (uu) */ 1424 unsigned int special_update_version : 8; /* Special update release version (c)*/ 1425 unsigned int reserved1 : 16; 1426 unsigned int reserved2; 1427 1428 /* The following bits represents new JDK supports that VM has dependency on. 1429 * VM implementation can use these bits to determine which JDK version 1430 * and support it has to maintain runtime compatibility. 1431 * 1432 * When a new bit is added in a minor or update release, make sure 1433 * the new bit is also added in the main/baseline. 1434 */ 1435 unsigned int thread_park_blocker : 1; 1436 unsigned int post_vm_init_hook_enabled : 1; 1437 unsigned int pending_list_uses_discovered_field : 1; 1438 unsigned int : 29; 1439 unsigned int : 32; 1440 unsigned int : 32; 1441 } jdk_version_info; 1442 1443 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1444 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1445 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1446 1447 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN) 1448 * It will be zero for internal builds. 1449 */ 1450 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF)) 1451 1452 /* 1453 * This is the function JDK_GetVersionInfo0 defined in libjava.so 1454 * that is dynamically looked up by JVM. 1455 */ 1456 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size); 1457 1458 /* 1459 * This structure is used by the launcher to get the default thread 1460 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a 1461 * version of 1.1. As it is not supported otherwise, it has been removed 1462 * from jni.h 1463 */ 1464 typedef struct JDK1_1InitArgs { 1465 jint version; 1466 1467 char **properties; 1468 jint checkSource; 1469 jint nativeStackSize; 1470 jint javaStackSize; 1471 jint minHeapSize; 1472 jint maxHeapSize; 1473 jint verifyMode; 1474 char *classpath; 1475 1476 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args); 1477 void (JNICALL *exit)(jint code); 1478 void (JNICALL *abort)(void); 1479 1480 jint enableClassGC; 1481 jint enableVerboseGC; 1482 jint disableAsyncGC; 1483 jint verbose; 1484 jboolean debugging; 1485 jint debugPort; 1486 } JDK1_1InitArgs; 1487 1488 1489 #ifdef __cplusplus 1490 } /* extern "C" */ 1491 1492 #endif /* __cplusplus */ 1493 1494 #endif /* !_JAVASOFT_JVM_H_ */