1 /*
   2  * Copyright (c) 1997, 2020, 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 network 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 6
  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 jlong JNICALL
 108 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);
 109 
 110 JNIEXPORT void JNICALL
 111 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
 112               jobject dst, jint dst_pos, jint length);
 113 
 114 /*
 115  * Return an array of all properties as alternating name and value pairs.
 116  */
 117 JNIEXPORT jobjectArray JNICALL
 118 JVM_GetProperties(JNIEnv *env);
 119 
 120 /*
 121  * java.lang.Runtime
 122  */
 123 JNIEXPORT void JNICALL
 124 JVM_BeforeHalt();
 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 jlong JNICALL
 150 JVM_TotalMemory(void);
 151 
 152 JNIEXPORT jlong JNICALL
 153 JVM_FreeMemory(void);
 154 
 155 JNIEXPORT jlong JNICALL
 156 JVM_MaxMemory(void);
 157 
 158 JNIEXPORT jint JNICALL
 159 JVM_ActiveProcessorCount(void);
 160 
 161 JNIEXPORT jboolean JNICALL
 162 JVM_IsUseContainerSupport(void);
 163 
 164 JNIEXPORT void * JNICALL
 165 JVM_LoadLibrary(const char *name);
 166 
 167 JNIEXPORT void JNICALL
 168 JVM_UnloadLibrary(void * handle);
 169 
 170 JNIEXPORT void * JNICALL
 171 JVM_FindLibraryEntry(void *handle, const char *name);
 172 
 173 JNIEXPORT jboolean JNICALL
 174 JVM_IsSupportedJNIVersion(jint version);
 175 
 176 JNIEXPORT jobjectArray JNICALL
 177 JVM_GetVmArguments(JNIEnv *env);
 178 
 179 JNIEXPORT void JNICALL
 180 JVM_InitializeFromArchive(JNIEnv* env, jclass cls);
 181 
 182 JNIEXPORT void JNICALL
 183 JVM_RegisterLambdaProxyClassForArchiving(JNIEnv* env, jclass caller,
 184                                          jstring invokedName,
 185                                          jobject invokedType,
 186                                          jobject methodType,
 187                                          jobject implMethodMember,
 188                                          jobject instantiatedMethodType,
 189                                          jclass lambdaProxyClass);
 190 
 191 JNIEXPORT jclass JNICALL
 192 JVM_LookupLambdaProxyClassFromArchive(JNIEnv* env, jclass caller,
 193                                       jstring invokedName,
 194                                       jobject invokedType,
 195                                       jobject methodType,
 196                                       jobject implMethodMember,
 197                                       jobject instantiatedMethodType,
 198                                       jboolean initialize);
 199 
 200 JNIEXPORT jboolean JNICALL
 201 JVM_IsCDSDumpingEnabled(JNIEnv* env);
 202 
 203 JNIEXPORT jboolean JNICALL
 204 JVM_IsCDSSharingEnabled(JNIEnv* env);
 205 
 206 JNIEXPORT jlong JNICALL
 207 JVM_GetRandomSeedForCDSDump();
 208 
 209 /*
 210  * java.lang.Throwable
 211  */
 212 JNIEXPORT void JNICALL
 213 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
 214 
 215 /*
 216  * java.lang.StackTraceElement
 217  */
 218 JNIEXPORT void JNICALL
 219 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);
 220 
 221 JNIEXPORT void JNICALL
 222 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
 223 
 224 /*
 225  * java.lang.NullPointerException
 226  */
 227 
 228 JNIEXPORT jstring JNICALL
 229 JVM_GetExtendedNPEMessage(JNIEnv *env, jthrowable throwable);
 230 
 231 /*
 232  * java.lang.StackWalker
 233  */
 234 enum {
 235   JVM_STACKWALK_FILL_CLASS_REFS_ONLY       = 0x2,
 236   JVM_STACKWALK_GET_CALLER_CLASS           = 0x04,
 237   JVM_STACKWALK_SHOW_HIDDEN_FRAMES         = 0x20,
 238   JVM_STACKWALK_FILL_LIVE_STACK_FRAMES     = 0x100
 239 };
 240 
 241 JNIEXPORT jobject JNICALL
 242 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
 243                   jint skip_frames, jint frame_count, jint start_index,
 244                   jobjectArray frames);
 245 
 246 JNIEXPORT jint JNICALL
 247 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
 248                   jint frame_count, jint start_index,
 249                   jobjectArray frames);
 250 
 251 /*
 252  * java.lang.Thread
 253  */
 254 JNIEXPORT void JNICALL
 255 JVM_StartThread(JNIEnv *env, jobject thread);
 256 
 257 JNIEXPORT void JNICALL
 258 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
 259 
 260 JNIEXPORT jboolean JNICALL
 261 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
 262 
 263 JNIEXPORT void JNICALL
 264 JVM_SuspendThread(JNIEnv *env, jobject thread);
 265 
 266 JNIEXPORT void JNICALL
 267 JVM_ResumeThread(JNIEnv *env, jobject thread);
 268 
 269 JNIEXPORT void JNICALL
 270 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
 271 
 272 JNIEXPORT void JNICALL
 273 JVM_Yield(JNIEnv *env, jclass threadClass);
 274 
 275 JNIEXPORT void JNICALL
 276 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
 277 
 278 JNIEXPORT jobject JNICALL
 279 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
 280 
 281 JNIEXPORT void JNICALL
 282 JVM_Interrupt(JNIEnv *env, jobject thread);
 283 
 284 JNIEXPORT jboolean JNICALL
 285 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
 286 
 287 JNIEXPORT void JNICALL
 288 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
 289 
 290 JNIEXPORT jobjectArray JNICALL
 291 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
 292 
 293 JNIEXPORT void JNICALL
 294 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
 295 
 296 /* getStackTrace() and getAllStackTraces() method */
 297 JNIEXPORT jobjectArray JNICALL
 298 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
 299 
 300 /*
 301  * java.lang.SecurityManager
 302  */
 303 JNIEXPORT jobjectArray JNICALL
 304 JVM_GetClassContext(JNIEnv *env);
 305 
 306 /*
 307  * java.lang.Package
 308  */
 309 JNIEXPORT jstring JNICALL
 310 JVM_GetSystemPackage(JNIEnv *env, jstring name);
 311 
 312 JNIEXPORT jobjectArray JNICALL
 313 JVM_GetSystemPackages(JNIEnv *env);
 314 
 315 /*
 316  * java.lang.ref.Reference
 317  */
 318 JNIEXPORT jobject JNICALL
 319 JVM_GetAndClearReferencePendingList(JNIEnv *env);
 320 
 321 JNIEXPORT jboolean JNICALL
 322 JVM_HasReferencePendingList(JNIEnv *env);
 323 
 324 JNIEXPORT void JNICALL
 325 JVM_WaitForReferencePendingList(JNIEnv *env);
 326 
 327 /*
 328  * java.io.ObjectInputStream
 329  */
 330 JNIEXPORT jobject JNICALL
 331 JVM_LatestUserDefinedLoader(JNIEnv *env);
 332 
 333 /*
 334  * java.lang.reflect.Array
 335  */
 336 JNIEXPORT jint JNICALL
 337 JVM_GetArrayLength(JNIEnv *env, jobject arr);
 338 
 339 JNIEXPORT jobject JNICALL
 340 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
 341 
 342 JNIEXPORT jvalue JNICALL
 343 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
 344 
 345 JNIEXPORT void JNICALL
 346 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
 347 
 348 JNIEXPORT void JNICALL
 349 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
 350                              unsigned char vCode);
 351 
 352 JNIEXPORT jobject JNICALL
 353 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
 354 
 355 JNIEXPORT jobject JNICALL
 356 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
 357 
 358 
 359 /*
 360  * Returns the immediate caller class of the native method invoking
 361  * JVM_GetCallerClass.  The Method.invoke and other frames due to
 362  * reflection machinery are skipped.
 363  *
 364  * The caller is expected to be marked with
 365  * jdk.internal.reflect.CallerSensitive. The JVM will throw an
 366  * error if it is not marked properly.
 367  */
 368 JNIEXPORT jclass JNICALL
 369 JVM_GetCallerClass(JNIEnv *env);
 370 
 371 
 372 /*
 373  * Find primitive classes
 374  * utf: class name
 375  */
 376 JNIEXPORT jclass JNICALL
 377 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
 378 
 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.  Throws ClassNotFoundException.
 388  *  name:   name of class
 389  *  init:   whether initialization is done
 390  *  loader: class loader to look up the class. This may not be the same as the caller's
 391  *          class loader.
 392  *  caller: initiating class. The initiating class may be null when a security
 393  *          manager is not installed.
 394  */
 395 JNIEXPORT jclass JNICALL
 396 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
 397                         jobject loader, jclass caller);
 398 
 399 /*
 400  * Find a class from a given class.
 401  */
 402 JNIEXPORT jclass JNICALL
 403 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
 404                              jclass from);
 405 
 406 /* Find a loaded class cached by the VM */
 407 JNIEXPORT jclass JNICALL
 408 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
 409 
 410 /* Define a class */
 411 JNIEXPORT jclass JNICALL
 412 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
 413                 jsize len, jobject pd);
 414 
 415 /* Define a class with a source (added in JDK1.5) */
 416 JNIEXPORT jclass JNICALL
 417 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
 418                           const jbyte *buf, jsize len, jobject pd,
 419                           const char *source);
 420 
 421 /*
 422  * Define a class with the specified lookup class.
 423  *  lookup:  Lookup class
 424  *  name:    the name of the class
 425  *  buf:     class bytes
 426  *  len:     length of class bytes
 427  *  pd:      protection domain
 428  *  init:    initialize the class
 429  *  flags:   properties of the class
 430  *  classData: private static pre-initialized field; may be null
 431  */
 432 JNIEXPORT jclass JNICALL
 433 JVM_LookupDefineClass(JNIEnv *env, jclass lookup, const char *name, const jbyte *buf,
 434                       jsize len, jobject pd, jboolean init, int flags, jobject classData);
 435 
 436 /*
 437  * Module support funcions
 438  */
 439 
 440 /*
 441  * Define a module with the specified packages and bind the module to the
 442  * given class loader.
 443  *  module:       module to define
 444  *  is_open:      specifies if module is open (currently ignored)
 445  *  version:      the module version
 446  *  location:     the module location
 447  *  packages:     array of packages in the module
 448  */
 449 JNIEXPORT void JNICALL
 450 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
 451                  jstring location, jobjectArray packages);
 452 
 453 /*
 454  * Set the boot loader's unnamed module.
 455  *  module: boot loader's unnamed module
 456  */
 457 JNIEXPORT void JNICALL
 458 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
 459 
 460 /*
 461  * Do a qualified export of a package.
 462  *  from_module: module containing the package to export
 463  *  package:     name of the package to export
 464  *  to_module:   module to export the package to
 465  */
 466 JNIEXPORT void JNICALL
 467 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
 468 
 469 /*
 470  * Do an export of a package to all unnamed modules.
 471  *  from_module: module containing the package to export
 472  *  package:     name of the package to export to all unnamed modules
 473  */
 474 JNIEXPORT void JNICALL
 475 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
 476 
 477 /*
 478  * Do an unqualified export of a package.
 479  *  from_module: module containing the package to export
 480  *  package:     name of the package to export
 481  */
 482 JNIEXPORT void JNICALL
 483 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
 484 
 485 /*
 486  * Add a module to the list of modules that a given module can read.
 487  *  from_module:   module requesting read access
 488  *  source_module: module that from_module wants to read
 489  */
 490 JNIEXPORT void JNICALL
 491 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
 492 
 493 /*
 494  * Define all modules that have been stored in the CDS archived heap.
 495  *  platform_loader: the built-in platform class loader
 496  *  system_loader:   the built-in system class loader
 497  */
 498 JNIEXPORT void JNICALL
 499 JVM_DefineArchivedModules(JNIEnv *env, jobject platform_loader, jobject system_loader);
 500 
 501 /*
 502  * Reflection support functions
 503  */
 504 
 505 JNIEXPORT jstring JNICALL
 506 JVM_InitClassName(JNIEnv *env, jclass cls);
 507 
 508 JNIEXPORT jobjectArray JNICALL
 509 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
 510 
 511 JNIEXPORT jboolean JNICALL
 512 JVM_IsInterface(JNIEnv *env, jclass cls);
 513 
 514 JNIEXPORT jobjectArray JNICALL
 515 JVM_GetClassSigners(JNIEnv *env, jclass cls);
 516 
 517 JNIEXPORT void JNICALL
 518 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
 519 
 520 JNIEXPORT jobject JNICALL
 521 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
 522 
 523 JNIEXPORT jboolean JNICALL
 524 JVM_IsArrayClass(JNIEnv *env, jclass cls);
 525 
 526 JNIEXPORT jboolean JNICALL
 527 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
 528 
 529 JNIEXPORT jboolean JNICALL
 530 JVM_IsHiddenClass(JNIEnv *env, jclass cls);
 531 
 532 JNIEXPORT jint JNICALL
 533 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
 534 
 535 JNIEXPORT jobjectArray JNICALL
 536 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
 537 
 538 JNIEXPORT jclass JNICALL
 539 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
 540 
 541 JNIEXPORT jstring JNICALL
 542 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
 543 
 544 /* Generics support (JDK 1.5) */
 545 JNIEXPORT jstring JNICALL
 546 JVM_GetClassSignature(JNIEnv *env, jclass cls);
 547 
 548 /* Annotations support (JDK 1.5) */
 549 JNIEXPORT jbyteArray JNICALL
 550 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
 551 
 552 /* Type use annotations support (JDK 1.8) */
 553 
 554 JNIEXPORT jbyteArray JNICALL
 555 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
 556 
 557 JNIEXPORT jbyteArray JNICALL
 558 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
 559 
 560 JNIEXPORT jbyteArray JNICALL
 561 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
 562 
 563 /*
 564  * New (JDK 1.4) reflection implementation
 565  */
 566 
 567 JNIEXPORT jobjectArray JNICALL
 568 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 569 
 570 JNIEXPORT jobjectArray JNICALL
 571 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 572 
 573 JNIEXPORT jobjectArray JNICALL
 574 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 575 
 576 
 577 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
 578    This returns the access flags for the class as specified in the
 579    class file rather than searching the InnerClasses attribute (if
 580    present) to find the source-level access flags. Only the values of
 581    the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
 582    valid. */
 583 JNIEXPORT jint JNICALL
 584 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
 585 
 586 /* Nestmates - since JDK 11 */
 587 
 588 JNIEXPORT jboolean JNICALL
 589 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member);
 590 
 591 JNIEXPORT jclass JNICALL
 592 JVM_GetNestHost(JNIEnv *env, jclass current);
 593 
 594 JNIEXPORT jobjectArray JNICALL
 595 JVM_GetNestMembers(JNIEnv *env, jclass current);
 596 
 597 /* Records - since JDK 14 */
 598 
 599 JNIEXPORT jboolean JNICALL
 600 JVM_IsRecord(JNIEnv *env, jclass cls);
 601 
 602 JNIEXPORT jobjectArray JNICALL
 603 JVM_GetRecordComponents(JNIEnv *env, jclass ofClass);
 604 
 605 /* Sealed types - since JDK 15 */
 606 
 607 JNIEXPORT jobjectArray JNICALL
 608 JVM_GetPermittedSubclasses(JNIEnv *env, jclass current);
 609 
 610 /* The following two reflection routines are still needed due to startup time issues */
 611 /*
 612  * java.lang.reflect.Method
 613  */
 614 JNIEXPORT jobject JNICALL
 615 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
 616 
 617 /*
 618  * java.lang.reflect.Constructor
 619  */
 620 JNIEXPORT jobject JNICALL
 621 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
 622 
 623 /*
 624  * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
 625  */
 626 
 627 JNIEXPORT jobject JNICALL
 628 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
 629 
 630 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
 631 (JNIEnv *env, jobject unused, jobject jcpool);
 632 
 633 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
 634 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 635 
 636 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
 637 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 638 
 639 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
 640 (JNIEnv *env, jobject obj, jobject unused, jint index);
 641 
 642 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
 643 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 644 
 645 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
 646 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 647 
 648 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
 649 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 650 
 651 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
 652 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 653 
 654 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
 655 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 656 
 657 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
 658 (JNIEnv *env, jobject obj, jobject unused, jint index);
 659 
 660 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
 661 (JNIEnv *env, jobject obj, jobject unused, jint index);
 662 
 663 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
 664 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 665 
 666 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
 667 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 668 
 669 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
 670 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 671 
 672 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
 673 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 674 
 675 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
 676 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 677 
 678 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
 679 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 680 
 681 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
 682 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 683 
 684 /*
 685  * Parameter reflection
 686  */
 687 
 688 JNIEXPORT jobjectArray JNICALL
 689 JVM_GetMethodParameters(JNIEnv *env, jobject method);
 690 
 691 /*
 692  * java.security.*
 693  */
 694 
 695 JNIEXPORT jobject JNICALL
 696 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
 697 
 698 /*
 699  * Ensure that code doing a stackwalk and using javaVFrame::locals() to
 700  * get the value will see a materialized value and not a scalar-replaced
 701  * null value.
 702  */
 703 #define JVM_EnsureMaterializedForStackWalk(env, value) \
 704     do {} while(0) // Nothing to do.  The fact that the value escaped
 705                    // through a native method is enough.
 706 
 707 JNIEXPORT jobject JNICALL
 708 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
 709 
 710 /*
 711  * Signal support, used to implement the shutdown sequence.  Every VM must
 712  * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
 713  * (^C) and the latter for external termination (kill, system shutdown, etc.).
 714  * Other platform-dependent signal values may also be supported.
 715  */
 716 
 717 JNIEXPORT void * JNICALL
 718 JVM_RegisterSignal(jint sig, void *handler);
 719 
 720 JNIEXPORT jboolean JNICALL
 721 JVM_RaiseSignal(jint sig);
 722 
 723 JNIEXPORT jint JNICALL
 724 JVM_FindSignal(const char *name);
 725 
 726 /*
 727  * Retrieve the assertion directives for the specified class.
 728  */
 729 JNIEXPORT jboolean JNICALL
 730 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
 731 
 732 /*
 733  * Retrieve the assertion directives from the VM.
 734  */
 735 JNIEXPORT jobject JNICALL
 736 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
 737 
 738 /*
 739  * java.util.concurrent.atomic.AtomicLong
 740  */
 741 JNIEXPORT jboolean JNICALL
 742 JVM_SupportsCX8(void);
 743 
 744 /*
 745  * com.sun.dtrace.jsdt support
 746  */
 747 
 748 #define JVM_TRACING_DTRACE_VERSION 1
 749 
 750 /*
 751  * Structure to pass one probe description to JVM
 752  */
 753 typedef struct {
 754     jmethodID method;
 755     jstring   function;
 756     jstring   name;
 757     void*            reserved[4];     // for future use
 758 } JVM_DTraceProbe;
 759 
 760 /**
 761  * Encapsulates the stability ratings for a DTrace provider field
 762  */
 763 typedef struct {
 764     jint nameStability;
 765     jint dataStability;
 766     jint dependencyClass;
 767 } JVM_DTraceInterfaceAttributes;
 768 
 769 /*
 770  * Structure to pass one provider description to JVM
 771  */
 772 typedef struct {
 773     jstring                       name;
 774     JVM_DTraceProbe*              probes;
 775     jint                          probe_count;
 776     JVM_DTraceInterfaceAttributes providerAttributes;
 777     JVM_DTraceInterfaceAttributes moduleAttributes;
 778     JVM_DTraceInterfaceAttributes functionAttributes;
 779     JVM_DTraceInterfaceAttributes nameAttributes;
 780     JVM_DTraceInterfaceAttributes argsAttributes;
 781     void*                         reserved[4]; // for future use
 782 } JVM_DTraceProvider;
 783 
 784 /*
 785  * Get the version number the JVM was built with
 786  */
 787 JNIEXPORT jint JNICALL
 788 JVM_DTraceGetVersion(JNIEnv* env);
 789 
 790 /*
 791  * Register new probe with given signature, return global handle
 792  *
 793  * The version passed in is the version that the library code was
 794  * built with.
 795  */
 796 JNIEXPORT jlong JNICALL
 797 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
 798   jint providers_count, JVM_DTraceProvider* providers);
 799 
 800 /*
 801  * Check JSDT probe
 802  */
 803 JNIEXPORT jboolean JNICALL
 804 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
 805 
 806 /*
 807  * Destroy custom DOF
 808  */
 809 JNIEXPORT void JNICALL
 810 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
 811 
 812 /*
 813  * Check to see if DTrace is supported by OS
 814  */
 815 JNIEXPORT jboolean JNICALL
 816 JVM_DTraceIsSupported(JNIEnv* env);
 817 
 818 /*************************************************************************
 819  PART 2: Support for the Verifier and Class File Format Checker
 820  ************************************************************************/
 821 /*
 822  * Return the class name in UTF format. The result is valid
 823  * 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_GetClassNameUTF(JNIEnv *env, jclass cb);
 830 
 831 /*
 832  * Returns the constant pool types in the buffer provided by "types."
 833  */
 834 JNIEXPORT void JNICALL
 835 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
 836 
 837 /*
 838  * Returns the number of Constant Pool entries.
 839  */
 840 JNIEXPORT jint JNICALL
 841 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
 842 
 843 /*
 844  * Returns the number of *declared* fields or methods.
 845  */
 846 JNIEXPORT jint JNICALL
 847 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
 848 
 849 JNIEXPORT jint JNICALL
 850 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
 851 
 852 /*
 853  * Returns the CP indexes of exceptions raised by a given method.
 854  * Places the result in the given buffer.
 855  *
 856  * The method is identified by method_index.
 857  */
 858 JNIEXPORT void JNICALL
 859 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
 860                                 unsigned short *exceptions);
 861 /*
 862  * Returns the number of exceptions raised by a given method.
 863  * The method is identified by method_index.
 864  */
 865 JNIEXPORT jint JNICALL
 866 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
 867 
 868 /*
 869  * Returns the byte code sequence of a given method.
 870  * Places the result in the given buffer.
 871  *
 872  * The method is identified by method_index.
 873  */
 874 JNIEXPORT void JNICALL
 875 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
 876                         unsigned char *code);
 877 
 878 /*
 879  * Returns the length of the byte code sequence of a given method.
 880  * The method is identified by method_index.
 881  */
 882 JNIEXPORT jint JNICALL
 883 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
 884 
 885 /*
 886  * A structure used to a capture exception table entry in a Java method.
 887  */
 888 typedef struct {
 889     jint start_pc;
 890     jint end_pc;
 891     jint handler_pc;
 892     jint catchType;
 893 } JVM_ExceptionTableEntryType;
 894 
 895 /*
 896  * Returns the exception table entry at entry_index of a given method.
 897  * Places the result in the given buffer.
 898  *
 899  * The method is identified by method_index.
 900  */
 901 JNIEXPORT void JNICALL
 902 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
 903                                    jint entry_index,
 904                                    JVM_ExceptionTableEntryType *entry);
 905 
 906 /*
 907  * Returns the length of the exception table of a given method.
 908  * The method is identified by method_index.
 909  */
 910 JNIEXPORT jint JNICALL
 911 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
 912 
 913 /*
 914  * Returns the modifiers of a given field.
 915  * The field is identified by field_index.
 916  */
 917 JNIEXPORT jint JNICALL
 918 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
 919 
 920 /*
 921  * Returns the modifiers of a given method.
 922  * The method is identified by method_index.
 923  */
 924 JNIEXPORT jint JNICALL
 925 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
 926 
 927 /*
 928  * Returns the number of local variables of a given method.
 929  * The method is identified by method_index.
 930  */
 931 JNIEXPORT jint JNICALL
 932 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
 933 
 934 /*
 935  * Returns the number of arguments (including this pointer) of a given method.
 936  * The method is identified by method_index.
 937  */
 938 JNIEXPORT jint JNICALL
 939 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
 940 
 941 /*
 942  * Returns the maximum amount of stack (in words) used by a given method.
 943  * The method is identified by method_index.
 944  */
 945 JNIEXPORT jint JNICALL
 946 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
 947 
 948 /*
 949  * Is a given method a constructor.
 950  * The method is identified by method_index.
 951  */
 952 JNIEXPORT jboolean JNICALL
 953 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
 954 
 955 /*
 956  * Is the given method generated by the VM.
 957  * The method is identified by method_index.
 958  */
 959 JNIEXPORT jboolean JNICALL
 960 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
 961 
 962 /*
 963  * Returns the name of a given method in UTF format.
 964  * The result remains valid until JVM_ReleaseUTF is called.
 965  *
 966  * The caller must treat the string as a constant and not modify it
 967  * in any way.
 968  */
 969 JNIEXPORT const char * JNICALL
 970 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
 971 
 972 /*
 973  * Returns the signature of a given method in UTF format.
 974  * The result remains valid until JVM_ReleaseUTF is called.
 975  *
 976  * The caller must treat the string as a constant and not modify it
 977  * in any way.
 978  */
 979 JNIEXPORT const char * JNICALL
 980 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
 981 
 982 /*
 983  * Returns the name of the field referred to at a given constant pool
 984  * index.
 985  *
 986  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 987  * is called.
 988  *
 989  * The caller must treat the string as a constant and not modify it
 990  * in any way.
 991  */
 992 JNIEXPORT const char * JNICALL
 993 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
 994 
 995 /*
 996  * Returns the name of the method referred to at a given constant pool
 997  * index.
 998  *
 999  * The result is in UTF format and remains valid until JVM_ReleaseUTF
1000  * is called.
1001  *
1002  * The caller must treat the string as a constant and not modify it
1003  * in any way.
1004  */
1005 JNIEXPORT const char * JNICALL
1006 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
1007 
1008 /*
1009  * Returns the signature of the method referred to at a given constant pool
1010  * index.
1011  *
1012  * The result is in UTF format and remains valid until JVM_ReleaseUTF
1013  * is called.
1014  *
1015  * The caller must treat the string as a constant and not modify it
1016  * in any way.
1017  */
1018 JNIEXPORT const char * JNICALL
1019 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
1020 
1021 /*
1022  * Returns the signature of the field referred to at a given constant pool
1023  * index.
1024  *
1025  * The result is in UTF format and remains valid until JVM_ReleaseUTF
1026  * is called.
1027  *
1028  * The caller must treat the string as a constant and not modify it
1029  * in any way.
1030  */
1031 JNIEXPORT const char * JNICALL
1032 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
1033 
1034 /*
1035  * Returns the class name referred to at a given constant pool index.
1036  *
1037  * The result is in UTF format and remains valid until JVM_ReleaseUTF
1038  * is called.
1039  *
1040  * The caller must treat the string as a constant and not modify it
1041  * in any way.
1042  */
1043 JNIEXPORT const char * JNICALL
1044 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
1045 
1046 /*
1047  * Returns the class name referred to at a given constant pool index.
1048  *
1049  * The constant pool entry must refer to a CONSTANT_Fieldref.
1050  *
1051  * The result is in UTF format and remains valid until JVM_ReleaseUTF
1052  * is called.
1053  *
1054  * The caller must treat the string as a constant and not modify it
1055  * in any way.
1056  */
1057 JNIEXPORT const char * JNICALL
1058 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
1059 
1060 /*
1061  * Returns the class name referred to at a given constant pool index.
1062  *
1063  * The constant pool entry must refer to CONSTANT_Methodref or
1064  * CONSTANT_InterfaceMethodref.
1065  *
1066  * The result is in UTF format and remains valid until JVM_ReleaseUTF
1067  * is called.
1068  *
1069  * The caller must treat the string as a constant and not modify it
1070  * in any way.
1071  */
1072 JNIEXPORT const char * JNICALL
1073 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1074 
1075 /*
1076  * Returns the modifiers of a field in calledClass. The field is
1077  * referred to in class cb at constant pool entry index.
1078  *
1079  * The caller must treat the string as a constant and not modify it
1080  * in any way.
1081  *
1082  * Returns -1 if the field does not exist in calledClass.
1083  */
1084 JNIEXPORT jint JNICALL
1085 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1086 
1087 /*
1088  * Returns the modifiers of a method in calledClass. The method is
1089  * referred to in class cb at constant pool entry index.
1090  *
1091  * Returns -1 if the method does not exist in calledClass.
1092  */
1093 JNIEXPORT jint JNICALL
1094 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1095 
1096 /*
1097  * Releases the UTF string obtained from the VM.
1098  */
1099 JNIEXPORT void JNICALL
1100 JVM_ReleaseUTF(const char *utf);
1101 
1102 /*
1103  * Compare if two classes are in the same package.
1104  */
1105 JNIEXPORT jboolean JNICALL
1106 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1107 
1108 /* Get classfile constants */
1109 #include "classfile_constants.h"
1110 
1111 /*
1112  * Support for a VM-independent class format checker.
1113  */
1114 typedef struct {
1115     unsigned long code;    /* byte code */
1116     unsigned long excs;    /* exceptions */
1117     unsigned long etab;    /* catch table */
1118     unsigned long lnum;    /* line number */
1119     unsigned long lvar;    /* local vars */
1120 } method_size_info;
1121 
1122 typedef struct {
1123     unsigned int constants;    /* constant pool */
1124     unsigned int fields;
1125     unsigned int methods;
1126     unsigned int interfaces;
1127     unsigned int fields2;      /* number of static 2-word fields */
1128     unsigned int innerclasses; /* # of records in InnerClasses attr */
1129 
1130     method_size_info clinit;   /* memory used in clinit */
1131     method_size_info main;     /* used everywhere else */
1132 } class_size_info;
1133 
1134 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1135                                         JVM_ACC_FINAL | \
1136                                         JVM_ACC_SUPER | \
1137                                         JVM_ACC_INTERFACE | \
1138                                         JVM_ACC_ABSTRACT | \
1139                                         JVM_ACC_ANNOTATION | \
1140                                         JVM_ACC_ENUM | \
1141                                         JVM_ACC_SYNTHETIC)
1142 
1143 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1144                                         JVM_ACC_PRIVATE | \
1145                                         JVM_ACC_PROTECTED | \
1146                                         JVM_ACC_STATIC | \
1147                                         JVM_ACC_FINAL | \
1148                                         JVM_ACC_VOLATILE | \
1149                                         JVM_ACC_TRANSIENT | \
1150                                         JVM_ACC_ENUM | \
1151                                         JVM_ACC_SYNTHETIC)
1152 
1153 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1154                                          JVM_ACC_PRIVATE | \
1155                                          JVM_ACC_PROTECTED | \
1156                                          JVM_ACC_STATIC | \
1157                                          JVM_ACC_FINAL | \
1158                                          JVM_ACC_SYNCHRONIZED | \
1159                                          JVM_ACC_BRIDGE | \
1160                                          JVM_ACC_VARARGS | \
1161                                          JVM_ACC_NATIVE | \
1162                                          JVM_ACC_ABSTRACT | \
1163                                          JVM_ACC_STRICT | \
1164                                          JVM_ACC_SYNTHETIC)
1165 
1166 
1167 /*************************************************************************
1168  PART 3: I/O and Network Support
1169  ************************************************************************/
1170 
1171 /*
1172  * Convert a pathname into native format.  This function does syntactic
1173  * cleanup, such as removing redundant separator characters.  It modifies
1174  * the given pathname string in place.
1175  */
1176 JNIEXPORT char * JNICALL
1177 JVM_NativePath(char *);
1178 
1179 /*
1180  * The standard printing functions supported by the Java VM. (Should they
1181  * be renamed to JVM_* in the future?
1182  */
1183 
1184 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1185  *  respectively, with the following differences:
1186  * - The string written to str is always zero-terminated, also in case of
1187  *   truncation (count is too small to hold the result string), unless count
1188  *   is 0. In case of truncation count-1 characters are written and '\0'
1189  *   appendend.
1190  * - If count is too small to hold the whole string, -1 is returned across
1191  *   all platforms. */
1192 
1193 JNIEXPORT int
1194 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1195 
1196 JNIEXPORT int
1197 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1198 
1199 JNIEXPORT int
1200 jio_fprintf(FILE *, const char *fmt, ...);
1201 
1202 JNIEXPORT int
1203 jio_vfprintf(FILE *, const char *fmt, va_list args);
1204 
1205 
1206 JNIEXPORT void * JNICALL
1207 JVM_RawMonitorCreate(void);
1208 
1209 JNIEXPORT void JNICALL
1210 JVM_RawMonitorDestroy(void *mon);
1211 
1212 JNIEXPORT jint JNICALL
1213 JVM_RawMonitorEnter(void *mon);
1214 
1215 JNIEXPORT void JNICALL
1216 JVM_RawMonitorExit(void *mon);
1217 
1218 /*
1219  * java.lang.management support
1220  */
1221 JNIEXPORT void* JNICALL
1222 JVM_GetManagement(jint version);
1223 
1224 /*
1225  * com.sun.tools.attach.VirtualMachine support
1226  *
1227  * Initialize the agent properties with the properties maintained in the VM.
1228  */
1229 JNIEXPORT jobject JNICALL
1230 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1231 
1232 JNIEXPORT jstring JNICALL
1233 JVM_GetTemporaryDirectory(JNIEnv *env);
1234 
1235 /* Generics reflection support.
1236  *
1237  * Returns information about the given class's EnclosingMethod
1238  * attribute, if present, or null if the class had no enclosing
1239  * method.
1240  *
1241  * If non-null, the returned array contains three elements. Element 0
1242  * is the java.lang.Class of which the enclosing method is a member,
1243  * and elements 1 and 2 are the java.lang.Strings for the enclosing
1244  * method's name and descriptor, respectively.
1245  */
1246 JNIEXPORT jobjectArray JNICALL
1247 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1248 
1249 /*
1250  * This structure is used by the launcher to get the default thread
1251  * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1252  * version of 1.1.  As it is not supported otherwise, it has been removed
1253  * from jni.h
1254  */
1255 typedef struct JDK1_1InitArgs {
1256     jint version;
1257 
1258     char **properties;
1259     jint checkSource;
1260     jint nativeStackSize;
1261     jint javaStackSize;
1262     jint minHeapSize;
1263     jint maxHeapSize;
1264     jint verifyMode;
1265     char *classpath;
1266 
1267     jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1268     void (JNICALL *exit)(jint code);
1269     void (JNICALL *abort)(void);
1270 
1271     jint enableClassGC;
1272     jint enableVerboseGC;
1273     jint disableAsyncGC;
1274     jint verbose;
1275     jboolean debugging;
1276     jint debugPort;
1277 } JDK1_1InitArgs;
1278 
1279 
1280 #ifdef __cplusplus
1281 } /* extern "C" */
1282 
1283 #endif /* __cplusplus */
1284 
1285 #endif /* !_JAVASOFT_JVM_H_ */