1 /*
   2  * Copyright (c) 1997, 2019, 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 void * JNICALL
 162 JVM_LoadLibrary(const char *name);
 163 
 164 JNIEXPORT void JNICALL
 165 JVM_UnloadLibrary(void * handle);
 166 
 167 JNIEXPORT void * JNICALL
 168 JVM_FindLibraryEntry(void *handle, const char *name);
 169 
 170 JNIEXPORT jboolean JNICALL
 171 JVM_IsSupportedJNIVersion(jint version);
 172 
 173 JNIEXPORT jobjectArray JNICALL
 174 JVM_GetVmArguments(JNIEnv *env);
 175 
 176 JNIEXPORT void JNICALL
 177 JVM_InitializeFromArchive(JNIEnv* env, jclass cls);
 178 
 179 /*
 180  * java.lang.Throwable
 181  */
 182 JNIEXPORT void JNICALL
 183 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
 184 
 185 /*
 186  * java.lang.StackTraceElement
 187  */
 188 JNIEXPORT void JNICALL
 189 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);
 190 
 191 JNIEXPORT void JNICALL
 192 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
 193 
 194 /*
 195  * java.lang.StackWalker
 196  */
 197 enum {
 198   JVM_STACKWALK_FILL_CLASS_REFS_ONLY       = 0x2,
 199   JVM_STACKWALK_GET_CALLER_CLASS           = 0x04,
 200   JVM_STACKWALK_SHOW_HIDDEN_FRAMES         = 0x20,
 201   JVM_STACKWALK_FILL_LIVE_STACK_FRAMES     = 0x100
 202 };
 203 
 204 JNIEXPORT jobject JNICALL
 205 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
 206                   jint skip_frames, jint frame_count, jint start_index,
 207                   jobjectArray frames);
 208 
 209 JNIEXPORT jint JNICALL
 210 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
 211                   jint frame_count, jint start_index,
 212                   jobjectArray frames);
 213 
 214 /*
 215  * java.lang.Thread
 216  */
 217 JNIEXPORT void JNICALL
 218 JVM_StartThread(JNIEnv *env, jobject thread);
 219 
 220 JNIEXPORT void JNICALL
 221 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
 222 
 223 JNIEXPORT jboolean JNICALL
 224 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
 225 
 226 JNIEXPORT void JNICALL
 227 JVM_SuspendThread(JNIEnv *env, jobject thread);
 228 
 229 JNIEXPORT void JNICALL
 230 JVM_ResumeThread(JNIEnv *env, jobject thread);
 231 
 232 JNIEXPORT void JNICALL
 233 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
 234 
 235 JNIEXPORT void JNICALL
 236 JVM_Yield(JNIEnv *env, jclass threadClass);
 237 
 238 JNIEXPORT void JNICALL
 239 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
 240 
 241 JNIEXPORT jobject JNICALL
 242 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
 243 
 244 JNIEXPORT jint JNICALL
 245 JVM_CountStackFrames(JNIEnv *env, jobject thread);
 246 
 247 JNIEXPORT void JNICALL
 248 JVM_Interrupt(JNIEnv *env, jobject thread);
 249 
 250 JNIEXPORT jboolean JNICALL
 251 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
 252 
 253 JNIEXPORT jboolean JNICALL
 254 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
 255 
 256 JNIEXPORT void JNICALL
 257 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
 258 
 259 JNIEXPORT jobjectArray JNICALL
 260 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
 261 
 262 JNIEXPORT void JNICALL
 263 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
 264 
 265 /* getStackTrace() and getAllStackTraces() method */
 266 JNIEXPORT jobjectArray JNICALL
 267 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
 268 
 269 /*
 270  * java.lang.SecurityManager
 271  */
 272 JNIEXPORT jobjectArray JNICALL
 273 JVM_GetClassContext(JNIEnv *env);
 274 
 275 /*
 276  * java.lang.Package
 277  */
 278 JNIEXPORT jstring JNICALL
 279 JVM_GetSystemPackage(JNIEnv *env, jstring name);
 280 
 281 JNIEXPORT jobjectArray JNICALL
 282 JVM_GetSystemPackages(JNIEnv *env);
 283 
 284 /*
 285  * java.lang.ref.Reference
 286  */
 287 JNIEXPORT jobject JNICALL
 288 JVM_GetAndClearReferencePendingList(JNIEnv *env);
 289 
 290 JNIEXPORT jboolean JNICALL
 291 JVM_HasReferencePendingList(JNIEnv *env);
 292 
 293 JNIEXPORT void JNICALL
 294 JVM_WaitForReferencePendingList(JNIEnv *env);
 295 
 296 /*
 297  * java.io.ObjectInputStream
 298  */
 299 JNIEXPORT jobject JNICALL
 300 JVM_LatestUserDefinedLoader(JNIEnv *env);
 301 
 302 /*
 303  * java.lang.reflect.Array
 304  */
 305 JNIEXPORT jint JNICALL
 306 JVM_GetArrayLength(JNIEnv *env, jobject arr);
 307 
 308 JNIEXPORT jobject JNICALL
 309 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
 310 
 311 JNIEXPORT jvalue JNICALL
 312 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
 313 
 314 JNIEXPORT void JNICALL
 315 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
 316 
 317 JNIEXPORT void JNICALL
 318 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
 319                              unsigned char vCode);
 320 
 321 JNIEXPORT jobject JNICALL
 322 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
 323 
 324 JNIEXPORT jobject JNICALL
 325 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
 326 
 327 
 328 /*
 329  * Returns the immediate caller class of the native method invoking
 330  * JVM_GetCallerClass.  The Method.invoke and other frames due to
 331  * reflection machinery are skipped.
 332  *
 333  * The caller is expected to be marked with
 334  * jdk.internal.reflect.CallerSensitive. The JVM will throw an
 335  * error if it is not marked properly.
 336  */
 337 JNIEXPORT jclass JNICALL
 338 JVM_GetCallerClass(JNIEnv *env);
 339 
 340 
 341 /*
 342  * Find primitive classes
 343  * utf: class name
 344  */
 345 JNIEXPORT jclass JNICALL
 346 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
 347 
 348 
 349 /*
 350  * Find a class from a boot class loader. Returns NULL if class not found.
 351  */
 352 JNIEXPORT jclass JNICALL
 353 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
 354 
 355 /*
 356  * Find a class from a given class loader.  Throws ClassNotFoundException.
 357  *  name:   name of class
 358  *  init:   whether initialization is done
 359  *  loader: class loader to look up the class. This may not be the same as the caller's
 360  *          class loader.
 361  *  caller: initiating class. The initiating class may be null when a security
 362  *          manager is not installed.
 363  */
 364 JNIEXPORT jclass JNICALL
 365 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
 366                         jobject loader, jclass caller);
 367 
 368 /*
 369  * Find a class from a given class.
 370  */
 371 JNIEXPORT jclass JNICALL
 372 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
 373                              jclass from);
 374 
 375 /* Find a loaded class cached by the VM */
 376 JNIEXPORT jclass JNICALL
 377 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
 378 
 379 /* Define a class */
 380 JNIEXPORT jclass JNICALL
 381 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
 382                 jsize len, jobject pd);
 383 
 384 /* Define a class with a source (added in JDK1.5) */
 385 JNIEXPORT jclass JNICALL
 386 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
 387                           const jbyte *buf, jsize len, jobject pd,
 388                           const char *source);
 389 
 390 /*
 391  * Define a class with the specified lookup class.
 392  *  lookup:  Lookup class
 393  *  name:    the name of the class
 394  *  loader:  defining class loader
 395  *  buf:     class bytes
 396  *  len:     length of class bytes
 397  *  pd:      protection domain
 398  *  flags:   properties of the class
 399  *  classData: private static pre-initialized field; may be null
 400  */
 401 JNIEXPORT jclass JNICALL
 402 JVM_LookupDefineClass(JNIEnv *env, jclass lookup, const char *name, jobject loader,
 403                       const jbyte *buf, jsize len, jobject pd, int flags, jobject classData);
 404 
 405 /*
 406  * Module support funcions
 407  */
 408 
 409 /*
 410  * Define a module with the specified packages and bind the module to the
 411  * given class loader.
 412  *  module:       module to define
 413  *  is_open:      specifies if module is open (currently ignored)
 414  *  version:      the module version
 415  *  location:     the module location
 416  *  packages:     list of packages in the module
 417  *  num_packages: number of packages in the module
 418  */
 419 JNIEXPORT void JNICALL
 420 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
 421                  jstring location, const char* const* packages, jsize num_packages);
 422 
 423 /*
 424  * Set the boot loader's unnamed module.
 425  *  module: boot loader's unnamed module
 426  */
 427 JNIEXPORT void JNICALL
 428 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
 429 
 430 /*
 431  * Do a qualified export of a package.
 432  *  from_module: module containing the package to export
 433  *  package:     name of the package to export
 434  *  to_module:   module to export the package to
 435  */
 436 JNIEXPORT void JNICALL
 437 JVM_AddModuleExports(JNIEnv *env, jobject from_module, const char* package, jobject to_module);
 438 
 439 /*
 440  * Do an export of a package to all unnamed modules.
 441  *  from_module: module containing the package to export
 442  *  package:     name of the package to export to all unnamed modules
 443  */
 444 JNIEXPORT void JNICALL
 445 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, const char* package);
 446 
 447 /*
 448  * Do an unqualified export of a package.
 449  *  from_module: module containing the package to export
 450  *  package:     name of the package to export
 451  */
 452 JNIEXPORT void JNICALL
 453 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, const char* package);
 454 
 455 /*
 456  * Add a module to the list of modules that a given module can read.
 457  *  from_module:   module requesting read access
 458  *  source_module: module that from_module wants to read
 459  */
 460 JNIEXPORT void JNICALL
 461 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
 462 
 463 /*
 464  * Reflection support functions
 465  */
 466 
 467 JNIEXPORT jstring JNICALL
 468 JVM_InitClassName(JNIEnv *env, jclass cls);
 469 
 470 JNIEXPORT jobjectArray JNICALL
 471 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
 472 
 473 JNIEXPORT jboolean JNICALL
 474 JVM_IsInterface(JNIEnv *env, jclass cls);
 475 
 476 JNIEXPORT jobjectArray JNICALL
 477 JVM_GetClassSigners(JNIEnv *env, jclass cls);
 478 
 479 JNIEXPORT void JNICALL
 480 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
 481 
 482 JNIEXPORT jobject JNICALL
 483 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
 484 
 485 JNIEXPORT jboolean JNICALL
 486 JVM_IsArrayClass(JNIEnv *env, jclass cls);
 487 
 488 JNIEXPORT jboolean JNICALL
 489 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
 490 
 491 JNIEXPORT jint JNICALL
 492 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
 493 
 494 JNIEXPORT jobjectArray JNICALL
 495 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
 496 
 497 JNIEXPORT jclass JNICALL
 498 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
 499 
 500 JNIEXPORT jstring JNICALL
 501 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
 502 
 503 /* Generics support (JDK 1.5) */
 504 JNIEXPORT jstring JNICALL
 505 JVM_GetClassSignature(JNIEnv *env, jclass cls);
 506 
 507 /* Annotations support (JDK 1.5) */
 508 JNIEXPORT jbyteArray JNICALL
 509 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
 510 
 511 /* Type use annotations support (JDK 1.8) */
 512 
 513 JNIEXPORT jbyteArray JNICALL
 514 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
 515 
 516 JNIEXPORT jbyteArray JNICALL
 517 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
 518 
 519 JNIEXPORT jbyteArray JNICALL
 520 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
 521 
 522 /*
 523  * New (JDK 1.4) reflection implementation
 524  */
 525 
 526 JNIEXPORT jobjectArray JNICALL
 527 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 528 
 529 JNIEXPORT jobjectArray JNICALL
 530 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 531 
 532 JNIEXPORT jobjectArray JNICALL
 533 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 534 
 535 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
 536    This returns the access flags for the class as specified in the
 537    class file rather than searching the InnerClasses attribute (if
 538    present) to find the source-level access flags. Only the values of
 539    the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
 540    valid. */
 541 JNIEXPORT jint JNICALL
 542 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
 543 
 544 /* Nestmates - since JDK 11 */
 545 
 546 JNIEXPORT jboolean JNICALL
 547 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member);
 548 
 549 JNIEXPORT jclass JNICALL
 550 JVM_GetNestHost(JNIEnv *env, jclass current);
 551 
 552 JNIEXPORT jobjectArray JNICALL
 553 JVM_GetNestMembers(JNIEnv *env, jclass current);
 554 
 555 /* The following two reflection routines are still needed due to startup time issues */
 556 /*
 557  * java.lang.reflect.Method
 558  */
 559 JNIEXPORT jobject JNICALL
 560 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
 561 
 562 /*
 563  * java.lang.reflect.Constructor
 564  */
 565 JNIEXPORT jobject JNICALL
 566 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
 567 
 568 /*
 569  * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
 570  */
 571 
 572 JNIEXPORT jobject JNICALL
 573 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
 574 
 575 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
 576 (JNIEnv *env, jobject unused, jobject jcpool);
 577 
 578 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
 579 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 580 
 581 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
 582 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 583 
 584 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
 585 (JNIEnv *env, jobject obj, jobject unused, jint index);
 586 
 587 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
 588 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 589 
 590 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
 591 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 592 
 593 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
 594 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 595 
 596 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
 597 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 598 
 599 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
 600 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 601 
 602 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
 603 (JNIEnv *env, jobject obj, jobject unused, jint index);
 604 
 605 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
 606 (JNIEnv *env, jobject obj, jobject unused, jint index);
 607 
 608 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
 609 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 610 
 611 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
 612 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 613 
 614 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
 615 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 616 
 617 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
 618 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 619 
 620 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
 621 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 622 
 623 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
 624 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 625 
 626 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
 627 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 628 
 629 /*
 630  * Parameter reflection
 631  */
 632 
 633 JNIEXPORT jobjectArray JNICALL
 634 JVM_GetMethodParameters(JNIEnv *env, jobject method);
 635 
 636 /*
 637  * java.security.*
 638  */
 639 
 640 JNIEXPORT jobject JNICALL
 641 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
 642 
 643 /*
 644  * Ensure that code doing a stackwalk and using javaVFrame::locals() to
 645  * get the value will see a materialized value and not a scalar-replaced
 646  * null value.
 647  */
 648 #define JVM_EnsureMaterializedForStackWalk(env, value) \
 649     do {} while(0) // Nothing to do.  The fact that the value escaped
 650                    // through a native method is enough.
 651 
 652 JNIEXPORT jobject JNICALL
 653 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
 654 
 655 /*
 656  * Signal support, used to implement the shutdown sequence.  Every VM must
 657  * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
 658  * (^C) and the latter for external termination (kill, system shutdown, etc.).
 659  * Other platform-dependent signal values may also be supported.
 660  */
 661 
 662 JNIEXPORT void * JNICALL
 663 JVM_RegisterSignal(jint sig, void *handler);
 664 
 665 JNIEXPORT jboolean JNICALL
 666 JVM_RaiseSignal(jint sig);
 667 
 668 JNIEXPORT jint JNICALL
 669 JVM_FindSignal(const char *name);
 670 
 671 /*
 672  * Retrieve the assertion directives for the specified class.
 673  */
 674 JNIEXPORT jboolean JNICALL
 675 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
 676 
 677 /*
 678  * Retrieve the assertion directives from the VM.
 679  */
 680 JNIEXPORT jobject JNICALL
 681 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
 682 
 683 /*
 684  * java.util.concurrent.atomic.AtomicLong
 685  */
 686 JNIEXPORT jboolean JNICALL
 687 JVM_SupportsCX8(void);
 688 
 689 /*
 690  * com.sun.dtrace.jsdt support
 691  */
 692 
 693 #define JVM_TRACING_DTRACE_VERSION 1
 694 
 695 /*
 696  * Structure to pass one probe description to JVM
 697  */
 698 typedef struct {
 699     jmethodID method;
 700     jstring   function;
 701     jstring   name;
 702     void*            reserved[4];     // for future use
 703 } JVM_DTraceProbe;
 704 
 705 /**
 706  * Encapsulates the stability ratings for a DTrace provider field
 707  */
 708 typedef struct {
 709     jint nameStability;
 710     jint dataStability;
 711     jint dependencyClass;
 712 } JVM_DTraceInterfaceAttributes;
 713 
 714 /*
 715  * Structure to pass one provider description to JVM
 716  */
 717 typedef struct {
 718     jstring                       name;
 719     JVM_DTraceProbe*              probes;
 720     jint                          probe_count;
 721     JVM_DTraceInterfaceAttributes providerAttributes;
 722     JVM_DTraceInterfaceAttributes moduleAttributes;
 723     JVM_DTraceInterfaceAttributes functionAttributes;
 724     JVM_DTraceInterfaceAttributes nameAttributes;
 725     JVM_DTraceInterfaceAttributes argsAttributes;
 726     void*                         reserved[4]; // for future use
 727 } JVM_DTraceProvider;
 728 
 729 /*
 730  * Get the version number the JVM was built with
 731  */
 732 JNIEXPORT jint JNICALL
 733 JVM_DTraceGetVersion(JNIEnv* env);
 734 
 735 /*
 736  * Register new probe with given signature, return global handle
 737  *
 738  * The version passed in is the version that the library code was
 739  * built with.
 740  */
 741 JNIEXPORT jlong JNICALL
 742 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
 743   jint providers_count, JVM_DTraceProvider* providers);
 744 
 745 /*
 746  * Check JSDT probe
 747  */
 748 JNIEXPORT jboolean JNICALL
 749 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
 750 
 751 /*
 752  * Destroy custom DOF
 753  */
 754 JNIEXPORT void JNICALL
 755 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
 756 
 757 /*
 758  * Check to see if DTrace is supported by OS
 759  */
 760 JNIEXPORT jboolean JNICALL
 761 JVM_DTraceIsSupported(JNIEnv* env);
 762 
 763 /*************************************************************************
 764  PART 2: Support for the Verifier and Class File Format Checker
 765  ************************************************************************/
 766 /*
 767  * Return the class name in UTF format. The result is valid
 768  * until JVM_ReleaseUTf is called.
 769  *
 770  * The caller must treat the string as a constant and not modify it
 771  * in any way.
 772  */
 773 JNIEXPORT const char * JNICALL
 774 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
 775 
 776 /*
 777  * Returns the constant pool types in the buffer provided by "types."
 778  */
 779 JNIEXPORT void JNICALL
 780 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
 781 
 782 /*
 783  * Returns the number of Constant Pool entries.
 784  */
 785 JNIEXPORT jint JNICALL
 786 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
 787 
 788 /*
 789  * Returns the number of *declared* fields or methods.
 790  */
 791 JNIEXPORT jint JNICALL
 792 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
 793 
 794 JNIEXPORT jint JNICALL
 795 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
 796 
 797 /*
 798  * Returns the CP indexes of exceptions raised by a given method.
 799  * Places the result in the given buffer.
 800  *
 801  * The method is identified by method_index.
 802  */
 803 JNIEXPORT void JNICALL
 804 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
 805                                 unsigned short *exceptions);
 806 /*
 807  * Returns the number of exceptions raised by a given method.
 808  * The method is identified by method_index.
 809  */
 810 JNIEXPORT jint JNICALL
 811 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
 812 
 813 /*
 814  * Returns the byte code sequence of a given method.
 815  * Places the result in the given buffer.
 816  *
 817  * The method is identified by method_index.
 818  */
 819 JNIEXPORT void JNICALL
 820 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
 821                         unsigned char *code);
 822 
 823 /*
 824  * Returns the length of the byte code sequence of a given method.
 825  * The method is identified by method_index.
 826  */
 827 JNIEXPORT jint JNICALL
 828 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
 829 
 830 /*
 831  * A structure used to a capture exception table entry in a Java method.
 832  */
 833 typedef struct {
 834     jint start_pc;
 835     jint end_pc;
 836     jint handler_pc;
 837     jint catchType;
 838 } JVM_ExceptionTableEntryType;
 839 
 840 /*
 841  * Returns the exception table entry at entry_index of a given method.
 842  * Places the result in the given buffer.
 843  *
 844  * The method is identified by method_index.
 845  */
 846 JNIEXPORT void JNICALL
 847 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
 848                                    jint entry_index,
 849                                    JVM_ExceptionTableEntryType *entry);
 850 
 851 /*
 852  * Returns the length of the exception table of a given method.
 853  * The method is identified by method_index.
 854  */
 855 JNIEXPORT jint JNICALL
 856 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
 857 
 858 /*
 859  * Returns the modifiers of a given field.
 860  * The field is identified by field_index.
 861  */
 862 JNIEXPORT jint JNICALL
 863 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
 864 
 865 /*
 866  * Returns the modifiers of a given method.
 867  * The method is identified by method_index.
 868  */
 869 JNIEXPORT jint JNICALL
 870 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
 871 
 872 /*
 873  * Returns the number of local variables of a given method.
 874  * The method is identified by method_index.
 875  */
 876 JNIEXPORT jint JNICALL
 877 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
 878 
 879 /*
 880  * Returns the number of arguments (including this pointer) of a given method.
 881  * The method is identified by method_index.
 882  */
 883 JNIEXPORT jint JNICALL
 884 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
 885 
 886 /*
 887  * Returns the maximum amount of stack (in words) used by a given method.
 888  * The method is identified by method_index.
 889  */
 890 JNIEXPORT jint JNICALL
 891 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
 892 
 893 /*
 894  * Is a given method a constructor.
 895  * The method is identified by method_index.
 896  */
 897 JNIEXPORT jboolean JNICALL
 898 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
 899 
 900 /*
 901  * Is the given method generated by the VM.
 902  * The method is identified by method_index.
 903  */
 904 JNIEXPORT jboolean JNICALL
 905 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
 906 
 907 /*
 908  * Returns the name of a given method in UTF format.
 909  * The result remains valid until JVM_ReleaseUTF is called.
 910  *
 911  * The caller must treat the string as a constant and not modify it
 912  * in any way.
 913  */
 914 JNIEXPORT const char * JNICALL
 915 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
 916 
 917 /*
 918  * Returns the signature of a given method in UTF format.
 919  * The result remains valid until JVM_ReleaseUTF is called.
 920  *
 921  * The caller must treat the string as a constant and not modify it
 922  * in any way.
 923  */
 924 JNIEXPORT const char * JNICALL
 925 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
 926 
 927 /*
 928  * Returns the name of the field referred to at a given constant pool
 929  * index.
 930  *
 931  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 932  * is called.
 933  *
 934  * The caller must treat the string as a constant and not modify it
 935  * in any way.
 936  */
 937 JNIEXPORT const char * JNICALL
 938 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
 939 
 940 /*
 941  * Returns the name of the method referred to at a given constant pool
 942  * index.
 943  *
 944  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 945  * is called.
 946  *
 947  * The caller must treat the string as a constant and not modify it
 948  * in any way.
 949  */
 950 JNIEXPORT const char * JNICALL
 951 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
 952 
 953 /*
 954  * Returns the signature of the method referred to at a given constant pool
 955  * index.
 956  *
 957  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 958  * is called.
 959  *
 960  * The caller must treat the string as a constant and not modify it
 961  * in any way.
 962  */
 963 JNIEXPORT const char * JNICALL
 964 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
 965 
 966 /*
 967  * Returns the signature of the field referred to at a given constant pool
 968  * index.
 969  *
 970  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 971  * is called.
 972  *
 973  * The caller must treat the string as a constant and not modify it
 974  * in any way.
 975  */
 976 JNIEXPORT const char * JNICALL
 977 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
 978 
 979 /*
 980  * Returns the class name referred to at a given constant pool index.
 981  *
 982  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 983  * is called.
 984  *
 985  * The caller must treat the string as a constant and not modify it
 986  * in any way.
 987  */
 988 JNIEXPORT const char * JNICALL
 989 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
 990 
 991 /*
 992  * Returns the class name referred to at a given constant pool index.
 993  *
 994  * The constant pool entry must refer to a CONSTANT_Fieldref.
 995  *
 996  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 997  * is called.
 998  *
 999  * The caller must treat the string as a constant and not modify it
1000  * in any way.
1001  */
1002 JNIEXPORT const char * JNICALL
1003 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
1004 
1005 /*
1006  * Returns the class name referred to at a given constant pool index.
1007  *
1008  * The constant pool entry must refer to CONSTANT_Methodref or
1009  * CONSTANT_InterfaceMethodref.
1010  *
1011  * The result is in UTF format and remains valid until JVM_ReleaseUTF
1012  * is called.
1013  *
1014  * The caller must treat the string as a constant and not modify it
1015  * in any way.
1016  */
1017 JNIEXPORT const char * JNICALL
1018 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1019 
1020 /*
1021  * Returns the modifiers of a field in calledClass. The field is
1022  * referred to in class cb at constant pool entry index.
1023  *
1024  * The caller must treat the string as a constant and not modify it
1025  * in any way.
1026  *
1027  * Returns -1 if the field does not exist in calledClass.
1028  */
1029 JNIEXPORT jint JNICALL
1030 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1031 
1032 /*
1033  * Returns the modifiers of a method in calledClass. The method is
1034  * referred to in class cb at constant pool entry index.
1035  *
1036  * Returns -1 if the method does not exist in calledClass.
1037  */
1038 JNIEXPORT jint JNICALL
1039 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1040 
1041 /*
1042  * Releases the UTF string obtained from the VM.
1043  */
1044 JNIEXPORT void JNICALL
1045 JVM_ReleaseUTF(const char *utf);
1046 
1047 /*
1048  * Compare if two classes are in the same package.
1049  */
1050 JNIEXPORT jboolean JNICALL
1051 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1052 
1053 /* Get classfile constants */
1054 #include "classfile_constants.h"
1055 
1056 /*
1057  * A function defined by the byte-code verifier and called by the VM.
1058  * This is not a function implemented in the VM.
1059  *
1060  * Returns JNI_FALSE if verification fails. A detailed error message
1061  * will be places in msg_buf, whose length is specified by buf_len.
1062  */
1063 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1064                                   jclass cb,
1065                                   char * msg_buf,
1066                                   jint buf_len);
1067 
1068 
1069 /*
1070  * Support for a VM-independent class format checker.
1071  */
1072 typedef struct {
1073     unsigned long code;    /* byte code */
1074     unsigned long excs;    /* exceptions */
1075     unsigned long etab;    /* catch table */
1076     unsigned long lnum;    /* line number */
1077     unsigned long lvar;    /* local vars */
1078 } method_size_info;
1079 
1080 typedef struct {
1081     unsigned int constants;    /* constant pool */
1082     unsigned int fields;
1083     unsigned int methods;
1084     unsigned int interfaces;
1085     unsigned int fields2;      /* number of static 2-word fields */
1086     unsigned int innerclasses; /* # of records in InnerClasses attr */
1087 
1088     method_size_info clinit;   /* memory used in clinit */
1089     method_size_info main;     /* used everywhere else */
1090 } class_size_info;
1091 
1092 /*
1093  * Functions defined in libjava.so to perform string conversions.
1094  *
1095  */
1096 
1097 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1098 
1099 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1100 
1101 /* This is the function defined in libjava.so that performs class
1102  * format checks. This functions fills in size information about
1103  * the class file and returns:
1104  *
1105  *   0: good
1106  *  -1: out of memory
1107  *  -2: bad format
1108  *  -3: unsupported version
1109  *  -4: bad class name
1110  */
1111 
1112 typedef jint (*check_format_fn_t)(char *class_name,
1113                                   unsigned char *data,
1114                                   unsigned int data_size,
1115                                   class_size_info *class_size,
1116                                   char *message_buffer,
1117                                   jint buffer_length,
1118                                   jboolean measure_only,
1119                                   jboolean check_relaxed);
1120 
1121 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1122                                         JVM_ACC_FINAL | \
1123                                         JVM_ACC_SUPER | \
1124                                         JVM_ACC_INTERFACE | \
1125                                         JVM_ACC_ABSTRACT | \
1126                                         JVM_ACC_ANNOTATION | \
1127                                         JVM_ACC_ENUM | \
1128                                         JVM_ACC_SYNTHETIC)
1129 
1130 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1131                                         JVM_ACC_PRIVATE | \
1132                                         JVM_ACC_PROTECTED | \
1133                                         JVM_ACC_STATIC | \
1134                                         JVM_ACC_FINAL | \
1135                                         JVM_ACC_VOLATILE | \
1136                                         JVM_ACC_TRANSIENT | \
1137                                         JVM_ACC_ENUM | \
1138                                         JVM_ACC_SYNTHETIC)
1139 
1140 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1141                                          JVM_ACC_PRIVATE | \
1142                                          JVM_ACC_PROTECTED | \
1143                                          JVM_ACC_STATIC | \
1144                                          JVM_ACC_FINAL | \
1145                                          JVM_ACC_SYNCHRONIZED | \
1146                                          JVM_ACC_BRIDGE | \
1147                                          JVM_ACC_VARARGS | \
1148                                          JVM_ACC_NATIVE | \
1149                                          JVM_ACC_ABSTRACT | \
1150                                          JVM_ACC_STRICT | \
1151                                          JVM_ACC_SYNTHETIC)
1152 
1153 /*
1154  * This is the function defined in libjava.so to perform path
1155  * canonicalization. VM call this function before opening jar files
1156  * to load system classes.
1157  *
1158  */
1159 
1160 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1161 
1162 /*************************************************************************
1163  PART 3: I/O and Network Support
1164  ************************************************************************/
1165 
1166 /*
1167  * Convert a pathname into native format.  This function does syntactic
1168  * cleanup, such as removing redundant separator characters.  It modifies
1169  * the given pathname string in place.
1170  */
1171 JNIEXPORT char * JNICALL
1172 JVM_NativePath(char *);
1173 
1174 /*
1175  * The standard printing functions supported by the Java VM. (Should they
1176  * be renamed to JVM_* in the future?
1177  */
1178 
1179 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1180  *  respectively, with the following differences:
1181  * - The string written to str is always zero-terminated, also in case of
1182  *   truncation (count is too small to hold the result string), unless count
1183  *   is 0. In case of truncation count-1 characters are written and '\0'
1184  *   appendend.
1185  * - If count is too small to hold the whole string, -1 is returned across
1186  *   all platforms. */
1187 
1188 JNIEXPORT int
1189 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1190 
1191 JNIEXPORT int
1192 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1193 
1194 JNIEXPORT int
1195 jio_fprintf(FILE *, const char *fmt, ...);
1196 
1197 JNIEXPORT int
1198 jio_vfprintf(FILE *, const char *fmt, va_list args);
1199 
1200 
1201 JNIEXPORT void * JNICALL
1202 JVM_RawMonitorCreate(void);
1203 
1204 JNIEXPORT void JNICALL
1205 JVM_RawMonitorDestroy(void *mon);
1206 
1207 JNIEXPORT jint JNICALL
1208 JVM_RawMonitorEnter(void *mon);
1209 
1210 JNIEXPORT void JNICALL
1211 JVM_RawMonitorExit(void *mon);
1212 
1213 /*
1214  * java.lang.management support
1215  */
1216 JNIEXPORT void* JNICALL
1217 JVM_GetManagement(jint version);
1218 
1219 /*
1220  * com.sun.tools.attach.VirtualMachine support
1221  *
1222  * Initialize the agent properties with the properties maintained in the VM.
1223  */
1224 JNIEXPORT jobject JNICALL
1225 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1226 
1227 JNIEXPORT jstring JNICALL
1228 JVM_GetTemporaryDirectory(JNIEnv *env);
1229 
1230 /* Generics reflection support.
1231  *
1232  * Returns information about the given class's EnclosingMethod
1233  * attribute, if present, or null if the class had no enclosing
1234  * method.
1235  *
1236  * If non-null, the returned array contains three elements. Element 0
1237  * is the java.lang.Class of which the enclosing method is a member,
1238  * and elements 1 and 2 are the java.lang.Strings for the enclosing
1239  * method's name and descriptor, respectively.
1240  */
1241 JNIEXPORT jobjectArray JNICALL
1242 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1243 
1244 /* =========================================================================
1245  * The following defines a private JVM interface that the JDK can query
1246  * for the JVM version and capabilities.  sun.misc.Version defines
1247  * the methods for getting the VM version and its capabilities.
1248  *
1249  * When a new bit is added, the following should be updated to provide
1250  * access to the new capability:
1251  *    HS:   JVM_GetVersionInfo and Abstract_VM_Version class
1252  *    SDK:  Version class
1253  *
1254  * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1255  * JVM to query for the JDK version and capabilities.
1256  *
1257  * When a new bit is added, the following should be updated to provide
1258  * access to the new capability:
1259  *    HS:   JDK_Version class
1260  *    SDK:  JDK_GetVersionInfo0
1261  *
1262  * ==========================================================================
1263  */
1264 typedef struct {
1265     unsigned int jvm_version;  /* Encoded $VNUM as specified by JEP-223 */
1266     unsigned int patch_version : 8; /* JEP-223 patch version */
1267     unsigned int reserved3 : 8;
1268     unsigned int reserved1 : 16;
1269     unsigned int reserved2;
1270 
1271     /* The following bits represents JVM supports that JDK has dependency on.
1272      * JDK can use these bits to determine which JVM version
1273      * and support it has to maintain runtime compatibility.
1274      *
1275      * When a new bit is added in a minor or update release, make sure
1276      * the new bit is also added in the main/baseline.
1277      */
1278     unsigned int is_attach_supported : 1;
1279     unsigned int : 31;
1280     unsigned int : 32;
1281     unsigned int : 32;
1282 } jvm_version_info;
1283 
1284 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1285 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1286 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1287 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1288 
1289 JNIEXPORT void JNICALL
1290 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1291 
1292 typedef struct {
1293     unsigned int jdk_version; /* Encoded $VNUM as specified by JEP-223 */
1294     unsigned int patch_version : 8; /* JEP-223 patch version */
1295     unsigned int reserved3 : 8;
1296     unsigned int reserved1 : 16;
1297     unsigned int reserved2;
1298 
1299     /* The following bits represents new JDK supports that VM has dependency on.
1300      * VM implementation can use these bits to determine which JDK version
1301      * and support it has to maintain runtime compatibility.
1302      *
1303      * When a new bit is added in a minor or update release, make sure
1304      * the new bit is also added in the main/baseline.
1305      */
1306     unsigned int thread_park_blocker : 1;
1307     unsigned int post_vm_init_hook_enabled : 1;
1308     unsigned int pending_list_uses_discovered_field : 1;
1309     unsigned int : 29;
1310     unsigned int : 32;
1311     unsigned int : 32;
1312 } jdk_version_info;
1313 
1314 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1315 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1316 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1317 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1318 
1319 /*
1320  * This is the function JDK_GetVersionInfo0 defined in libjava.so
1321  * that is dynamically looked up by JVM.
1322  */
1323 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1324 
1325 /*
1326  * This structure is used by the launcher to get the default thread
1327  * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1328  * version of 1.1.  As it is not supported otherwise, it has been removed
1329  * from jni.h
1330  */
1331 typedef struct JDK1_1InitArgs {
1332     jint version;
1333 
1334     char **properties;
1335     jint checkSource;
1336     jint nativeStackSize;
1337     jint javaStackSize;
1338     jint minHeapSize;
1339     jint maxHeapSize;
1340     jint verifyMode;
1341     char *classpath;
1342 
1343     jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1344     void (JNICALL *exit)(jint code);
1345     void (JNICALL *abort)(void);
1346 
1347     jint enableClassGC;
1348     jint enableVerboseGC;
1349     jint disableAsyncGC;
1350     jint verbose;
1351     jboolean debugging;
1352     jint debugPort;
1353 } JDK1_1InitArgs;
1354 
1355 
1356 #ifdef __cplusplus
1357 } /* extern "C" */
1358 
1359 #endif /* __cplusplus */
1360 
1361 #endif /* !_JAVASOFT_JVM_H_ */