1 /*
   2  * Copyright (c) 1997, 2017, 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 5
  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 JNIEXPORT jobject JNICALL
 115 JVM_InitProperties(JNIEnv *env, jobject p);
 116 
 117 
 118 /*
 119  * java.lang.Runtime
 120  */
 121 JNIEXPORT void JNICALL
 122 JVM_Halt(jint code);
 123 
 124 JNIEXPORT void JNICALL
 125 JVM_GC(void);
 126 
 127 /* Returns the number of real-time milliseconds that have elapsed since the
 128  * least-recently-inspected heap object was last inspected by the garbage
 129  * collector.
 130  *
 131  * For simple stop-the-world collectors this value is just the time
 132  * since the most recent collection.  For generational collectors it is the
 133  * time since the oldest generation was most recently collected.  Other
 134  * collectors are free to return a pessimistic estimate of the elapsed time, or
 135  * simply the time since the last full collection was performed.
 136  *
 137  * Note that in the presence of reference objects, a given object that is no
 138  * longer strongly reachable may have to be inspected multiple times before it
 139  * can be reclaimed.
 140  */
 141 JNIEXPORT jlong JNICALL
 142 JVM_MaxObjectInspectionAge(void);
 143 
 144 JNIEXPORT jlong JNICALL
 145 JVM_TotalMemory(void);
 146 
 147 JNIEXPORT jlong JNICALL
 148 JVM_FreeMemory(void);
 149 
 150 JNIEXPORT jlong JNICALL
 151 JVM_MaxMemory(void);
 152 
 153 JNIEXPORT jint JNICALL
 154 JVM_ActiveProcessorCount(void);
 155 
 156 JNIEXPORT void * JNICALL
 157 JVM_LoadLibrary(const char *name);
 158 
 159 JNIEXPORT void JNICALL
 160 JVM_UnloadLibrary(void * handle);
 161 
 162 JNIEXPORT void * JNICALL
 163 JVM_FindLibraryEntry(void *handle, const char *name);
 164 
 165 JNIEXPORT jboolean JNICALL
 166 JVM_IsSupportedJNIVersion(jint version);
 167 
 168 JNIEXPORT jobjectArray JNICALL
 169 JVM_GetVmArguments(JNIEnv *env);
 170 
 171 
 172 /*
 173  * java.lang.Throwable
 174  */
 175 JNIEXPORT void JNICALL
 176 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
 177 
 178 /*
 179  * java.lang.StackTraceElement
 180  */
 181 JNIEXPORT void JNICALL
 182 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);
 183 
 184 JNIEXPORT void JNICALL
 185 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
 186 
 187 /*
 188  * java.lang.StackWalker
 189  */
 190 enum {
 191   JVM_STACKWALK_FILL_CLASS_REFS_ONLY       = 0x2,
 192   JVM_STACKWALK_GET_CALLER_CLASS           = 0x04,
 193   JVM_STACKWALK_SHOW_HIDDEN_FRAMES         = 0x20,
 194   JVM_STACKWALK_FILL_LIVE_STACK_FRAMES     = 0x100
 195 };
 196 
 197 JNIEXPORT jobject JNICALL
 198 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
 199                   jint skip_frames, jint frame_count, jint start_index,
 200                   jobjectArray frames);
 201 
 202 JNIEXPORT jint JNICALL
 203 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
 204                   jint frame_count, jint start_index,
 205                   jobjectArray frames);
 206 
 207 /*
 208  * java.lang.Thread
 209  */
 210 JNIEXPORT void JNICALL
 211 JVM_StartThread(JNIEnv *env, jobject thread);
 212 
 213 JNIEXPORT void JNICALL
 214 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
 215 
 216 JNIEXPORT jboolean JNICALL
 217 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
 218 
 219 JNIEXPORT void JNICALL
 220 JVM_SuspendThread(JNIEnv *env, jobject thread);
 221 
 222 JNIEXPORT void JNICALL
 223 JVM_ResumeThread(JNIEnv *env, jobject thread);
 224 
 225 JNIEXPORT void JNICALL
 226 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
 227 
 228 JNIEXPORT void JNICALL
 229 JVM_Yield(JNIEnv *env, jclass threadClass);
 230 
 231 JNIEXPORT void JNICALL
 232 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
 233 
 234 JNIEXPORT jobject JNICALL
 235 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
 236 
 237 JNIEXPORT jint JNICALL
 238 JVM_CountStackFrames(JNIEnv *env, jobject thread);
 239 
 240 JNIEXPORT void JNICALL
 241 JVM_Interrupt(JNIEnv *env, jobject thread);
 242 
 243 JNIEXPORT jboolean JNICALL
 244 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
 245 
 246 JNIEXPORT jboolean JNICALL
 247 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
 248 
 249 JNIEXPORT void JNICALL
 250 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
 251 
 252 JNIEXPORT jobjectArray JNICALL
 253 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
 254 
 255 JNIEXPORT void JNICALL
 256 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
 257 
 258 /* getStackTrace() and getAllStackTraces() method */
 259 JNIEXPORT jobjectArray JNICALL
 260 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
 261 
 262 /*
 263  * java.lang.Continuation
 264  */
 265 JNIEXPORT void JNICALL 
 266 JVM_RegisterContinuationMethods(JNIEnv *env, jclass cls);
 267 
 268 /*
 269  * java.lang.SecurityManager
 270  */
 271 JNIEXPORT jclass JNICALL
 272 JVM_CurrentLoadedClass(JNIEnv *env);
 273 
 274 JNIEXPORT jobject JNICALL
 275 JVM_CurrentClassLoader(JNIEnv *env);
 276 
 277 JNIEXPORT jobjectArray JNICALL
 278 JVM_GetClassContext(JNIEnv *env);
 279 
 280 JNIEXPORT jint JNICALL
 281 JVM_ClassDepth(JNIEnv *env, jstring name);
 282 
 283 JNIEXPORT jint JNICALL
 284 JVM_ClassLoaderDepth(JNIEnv *env);
 285 
 286 /*
 287  * java.lang.Package
 288  */
 289 JNIEXPORT jstring JNICALL
 290 JVM_GetSystemPackage(JNIEnv *env, jstring name);
 291 
 292 JNIEXPORT jobjectArray JNICALL
 293 JVM_GetSystemPackages(JNIEnv *env);
 294 
 295 /*
 296  * java.lang.ref.Reference
 297  */
 298 JNIEXPORT jobject JNICALL
 299 JVM_GetAndClearReferencePendingList(JNIEnv *env);
 300 
 301 JNIEXPORT jboolean JNICALL
 302 JVM_HasReferencePendingList(JNIEnv *env);
 303 
 304 JNIEXPORT void JNICALL
 305 JVM_WaitForReferencePendingList(JNIEnv *env);
 306 
 307 /*
 308  * java.io.ObjectInputStream
 309  */
 310 JNIEXPORT jobject JNICALL
 311 JVM_LatestUserDefinedLoader(JNIEnv *env);
 312 
 313 /*
 314  * java.lang.reflect.Array
 315  */
 316 JNIEXPORT jint JNICALL
 317 JVM_GetArrayLength(JNIEnv *env, jobject arr);
 318 
 319 JNIEXPORT jobject JNICALL
 320 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
 321 
 322 JNIEXPORT jvalue JNICALL
 323 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
 324 
 325 JNIEXPORT void JNICALL
 326 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
 327 
 328 JNIEXPORT void JNICALL
 329 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
 330                              unsigned char vCode);
 331 
 332 JNIEXPORT jobject JNICALL
 333 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
 334 
 335 JNIEXPORT jobject JNICALL
 336 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
 337 
 338 /*
 339  * java.lang.Class and java.lang.ClassLoader
 340  */
 341 
 342 #define JVM_CALLER_DEPTH -1
 343 
 344 /*
 345  * Returns the immediate caller class of the native method invoking
 346  * JVM_GetCallerClass.  The Method.invoke and other frames due to
 347  * reflection machinery are skipped.
 348  *
 349  * The depth parameter must be -1 (JVM_DEPTH). The caller is expected
 350  * to be marked with sun.reflect.CallerSensitive.  The JVM will throw
 351  * an error if it is not marked propertly.
 352  */
 353 JNIEXPORT jclass JNICALL
 354 JVM_GetCallerClass(JNIEnv *env, int depth);
 355 
 356 
 357 /*
 358  * Find primitive classes
 359  * utf: class name
 360  */
 361 JNIEXPORT jclass JNICALL
 362 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
 363 
 364 
 365 /*
 366  * Find a class from a boot class loader. Returns NULL if class not found.
 367  */
 368 JNIEXPORT jclass JNICALL
 369 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
 370 
 371 /*
 372  * Find a class from a given class loader.  Throws ClassNotFoundException.
 373  *  name:   name of class
 374  *  init:   whether initialization is done
 375  *  loader: class loader to look up the class. This may not be the same as the caller's
 376  *          class loader.
 377  *  caller: initiating class. The initiating class may be null when a security
 378  *          manager is not installed.
 379  */
 380 JNIEXPORT jclass JNICALL
 381 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
 382                         jobject loader, jclass caller);
 383 
 384 /*
 385  * Find a class from a given class.
 386  */
 387 JNIEXPORT jclass JNICALL
 388 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
 389                              jclass from);
 390 
 391 /* Find a loaded class cached by the VM */
 392 JNIEXPORT jclass JNICALL
 393 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
 394 
 395 /* Define a class */
 396 JNIEXPORT jclass JNICALL
 397 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
 398                 jsize len, jobject pd);
 399 
 400 /* Define a class with a source (added in JDK1.5) */
 401 JNIEXPORT jclass JNICALL
 402 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
 403                           const jbyte *buf, jsize len, jobject pd,
 404                           const char *source);
 405 
 406 /*
 407  * Module support funcions
 408  */
 409 
 410 /*
 411  * Define a module with the specified packages and bind the module to the
 412  * given class loader.
 413  *  module:       module to define
 414  *  is_open:      specifies if module is open (currently ignored)
 415  *  version:      the module version
 416  *  location:     the module location
 417  *  packages:     list of packages in the module
 418  *  num_packages: number of packages in the module
 419  */
 420 JNIEXPORT void JNICALL
 421 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
 422                  jstring location, const char* const* packages, jsize num_packages);
 423 
 424 /*
 425  * Set the boot loader's unnamed module.
 426  *  module: boot loader's unnamed module
 427  */
 428 JNIEXPORT void JNICALL
 429 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
 430 
 431 /*
 432  * Do a qualified export of a package.
 433  *  from_module: module containing the package to export
 434  *  package:     name of the package to export
 435  *  to_module:   module to export the package to
 436  */
 437 JNIEXPORT void JNICALL
 438 JVM_AddModuleExports(JNIEnv *env, jobject from_module, const char* package, jobject to_module);
 439 
 440 /*
 441  * Do an export of a package to all unnamed modules.
 442  *  from_module: module containing the package to export
 443  *  package:     name of the package to export to all unnamed modules
 444  */
 445 JNIEXPORT void JNICALL
 446 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, const char* package);
 447 
 448 /*
 449  * Do an unqualified export of a package.
 450  *  from_module: module containing the package to export
 451  *  package:     name of the package to export
 452  */
 453 JNIEXPORT void JNICALL
 454 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, const char* package);
 455 
 456 /*
 457  * Add a module to the list of modules that a given module can read.
 458  *  from_module:   module requesting read access
 459  *  source_module: module that from_module wants to read
 460  */
 461 JNIEXPORT void JNICALL
 462 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
 463 
 464 /*
 465  * Reflection support functions
 466  */
 467 
 468 JNIEXPORT jstring JNICALL
 469 JVM_GetClassName(JNIEnv *env, jclass cls);
 470 
 471 JNIEXPORT jobjectArray JNICALL
 472 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
 473 
 474 JNIEXPORT jboolean JNICALL
 475 JVM_IsInterface(JNIEnv *env, jclass cls);
 476 
 477 JNIEXPORT jobjectArray JNICALL
 478 JVM_GetClassSigners(JNIEnv *env, jclass cls);
 479 
 480 JNIEXPORT void JNICALL
 481 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
 482 
 483 JNIEXPORT jobject JNICALL
 484 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
 485 
 486 JNIEXPORT jboolean JNICALL
 487 JVM_IsArrayClass(JNIEnv *env, jclass cls);
 488 
 489 JNIEXPORT jboolean JNICALL
 490 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
 491 
 492 JNIEXPORT jint JNICALL
 493 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
 494 
 495 JNIEXPORT jobjectArray JNICALL
 496 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
 497 
 498 JNIEXPORT jclass JNICALL
 499 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
 500 
 501 JNIEXPORT jstring JNICALL
 502 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
 503 
 504 /* Generics support (JDK 1.5) */
 505 JNIEXPORT jstring JNICALL
 506 JVM_GetClassSignature(JNIEnv *env, jclass cls);
 507 
 508 /* Annotations support (JDK 1.5) */
 509 JNIEXPORT jbyteArray JNICALL
 510 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
 511 
 512 /* Type use annotations support (JDK 1.8) */
 513 
 514 JNIEXPORT jbyteArray JNICALL
 515 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
 516 
 517 JNIEXPORT jbyteArray JNICALL
 518 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
 519 
 520 JNIEXPORT jbyteArray JNICALL
 521 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
 522 
 523 /*
 524  * New (JDK 1.4) reflection implementation
 525  */
 526 
 527 JNIEXPORT jobjectArray JNICALL
 528 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 529 
 530 JNIEXPORT jobjectArray JNICALL
 531 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 532 
 533 JNIEXPORT jobjectArray JNICALL
 534 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 535 
 536 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
 537    This returns the access flags for the class as specified in the
 538    class file rather than searching the InnerClasses attribute (if
 539    present) to find the source-level access flags. Only the values of
 540    the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
 541    valid. */
 542 JNIEXPORT jint JNICALL
 543 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
 544 
 545 /* The following two reflection routines are still needed due to startup time issues */
 546 /*
 547  * java.lang.reflect.Method
 548  */
 549 JNIEXPORT jobject JNICALL
 550 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
 551 
 552 /*
 553  * java.lang.reflect.Constructor
 554  */
 555 JNIEXPORT jobject JNICALL
 556 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
 557 
 558 /*
 559  * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
 560  */
 561 
 562 JNIEXPORT jobject JNICALL
 563 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
 564 
 565 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
 566 (JNIEnv *env, jobject unused, jobject jcpool);
 567 
 568 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
 569 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 570 
 571 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
 572 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 573 
 574 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
 575 (JNIEnv *env, jobject obj, jobject unused, jint index);
 576 
 577 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
 578 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 579 
 580 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
 581 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 582 
 583 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
 584 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 585 
 586 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
 587 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 588 
 589 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
 590 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 591 
 592 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
 593 (JNIEnv *env, jobject obj, jobject unused, jint index);
 594 
 595 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
 596 (JNIEnv *env, jobject obj, jobject unused, jint index);
 597 
 598 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
 599 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 600 
 601 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
 602 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 603 
 604 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
 605 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 606 
 607 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
 608 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 609 
 610 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
 611 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 612 
 613 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
 614 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 615 
 616 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
 617 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 618 
 619 /*
 620  * Parameter reflection
 621  */
 622 
 623 JNIEXPORT jobjectArray JNICALL
 624 JVM_GetMethodParameters(JNIEnv *env, jobject method);
 625 
 626 /*
 627  * java.security.*
 628  */
 629 
 630 JNIEXPORT jobject JNICALL
 631 JVM_DoPrivileged(JNIEnv *env, jclass cls,
 632                  jobject action, jobject context, jboolean wrapException);
 633 
 634 JNIEXPORT jobject JNICALL
 635 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
 636 
 637 JNIEXPORT jobject JNICALL
 638 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
 639 
 640 /*
 641  * Signal support, used to implement the shutdown sequence.  Every VM must
 642  * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
 643  * (^C) and the latter for external termination (kill, system shutdown, etc.).
 644  * Other platform-dependent signal values may also be supported.
 645  */
 646 
 647 JNIEXPORT void * JNICALL
 648 JVM_RegisterSignal(jint sig, void *handler);
 649 
 650 JNIEXPORT jboolean JNICALL
 651 JVM_RaiseSignal(jint sig);
 652 
 653 JNIEXPORT jint JNICALL
 654 JVM_FindSignal(const char *name);
 655 
 656 /*
 657  * Retrieve the assertion directives for the specified class.
 658  */
 659 JNIEXPORT jboolean JNICALL
 660 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
 661 
 662 /*
 663  * Retrieve the assertion directives from the VM.
 664  */
 665 JNIEXPORT jobject JNICALL
 666 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
 667 
 668 /*
 669  * java.util.concurrent.atomic.AtomicLong
 670  */
 671 JNIEXPORT jboolean JNICALL
 672 JVM_SupportsCX8(void);
 673 
 674 /*
 675  * com.sun.dtrace.jsdt support
 676  */
 677 
 678 #define JVM_TRACING_DTRACE_VERSION 1
 679 
 680 /*
 681  * Structure to pass one probe description to JVM
 682  */
 683 typedef struct {
 684     jmethodID method;
 685     jstring   function;
 686     jstring   name;
 687     void*            reserved[4];     // for future use
 688 } JVM_DTraceProbe;
 689 
 690 /**
 691  * Encapsulates the stability ratings for a DTrace provider field
 692  */
 693 typedef struct {
 694     jint nameStability;
 695     jint dataStability;
 696     jint dependencyClass;
 697 } JVM_DTraceInterfaceAttributes;
 698 
 699 /*
 700  * Structure to pass one provider description to JVM
 701  */
 702 typedef struct {
 703     jstring                       name;
 704     JVM_DTraceProbe*              probes;
 705     jint                          probe_count;
 706     JVM_DTraceInterfaceAttributes providerAttributes;
 707     JVM_DTraceInterfaceAttributes moduleAttributes;
 708     JVM_DTraceInterfaceAttributes functionAttributes;
 709     JVM_DTraceInterfaceAttributes nameAttributes;
 710     JVM_DTraceInterfaceAttributes argsAttributes;
 711     void*                         reserved[4]; // for future use
 712 } JVM_DTraceProvider;
 713 
 714 /*
 715  * Get the version number the JVM was built with
 716  */
 717 JNIEXPORT jint JNICALL
 718 JVM_DTraceGetVersion(JNIEnv* env);
 719 
 720 /*
 721  * Register new probe with given signature, return global handle
 722  *
 723  * The version passed in is the version that the library code was
 724  * built with.
 725  */
 726 JNIEXPORT jlong JNICALL
 727 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
 728   jint providers_count, JVM_DTraceProvider* providers);
 729 
 730 /*
 731  * Check JSDT probe
 732  */
 733 JNIEXPORT jboolean JNICALL
 734 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
 735 
 736 /*
 737  * Destroy custom DOF
 738  */
 739 JNIEXPORT void JNICALL
 740 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
 741 
 742 /*
 743  * Check to see if DTrace is supported by OS
 744  */
 745 JNIEXPORT jboolean JNICALL
 746 JVM_DTraceIsSupported(JNIEnv* env);
 747 
 748 /*************************************************************************
 749  PART 2: Support for the Verifier and Class File Format Checker
 750  ************************************************************************/
 751 /*
 752  * Return the class name in UTF format. The result is valid
 753  * until JVM_ReleaseUTf is called.
 754  *
 755  * The caller must treat the string as a constant and not modify it
 756  * in any way.
 757  */
 758 JNIEXPORT const char * JNICALL
 759 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
 760 
 761 /*
 762  * Returns the constant pool types in the buffer provided by "types."
 763  */
 764 JNIEXPORT void JNICALL
 765 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
 766 
 767 /*
 768  * Returns the number of Constant Pool entries.
 769  */
 770 JNIEXPORT jint JNICALL
 771 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
 772 
 773 /*
 774  * Returns the number of *declared* fields or methods.
 775  */
 776 JNIEXPORT jint JNICALL
 777 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
 778 
 779 JNIEXPORT jint JNICALL
 780 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
 781 
 782 /*
 783  * Returns the CP indexes of exceptions raised by a given method.
 784  * Places the result in the given buffer.
 785  *
 786  * The method is identified by method_index.
 787  */
 788 JNIEXPORT void JNICALL
 789 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
 790                                 unsigned short *exceptions);
 791 /*
 792  * Returns the number of exceptions raised by a given method.
 793  * The method is identified by method_index.
 794  */
 795 JNIEXPORT jint JNICALL
 796 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
 797 
 798 /*
 799  * Returns the byte code sequence of a given method.
 800  * Places the result in the given buffer.
 801  *
 802  * The method is identified by method_index.
 803  */
 804 JNIEXPORT void JNICALL
 805 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
 806                         unsigned char *code);
 807 
 808 /*
 809  * Returns the length of the byte code sequence of a given method.
 810  * The method is identified by method_index.
 811  */
 812 JNIEXPORT jint JNICALL
 813 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
 814 
 815 /*
 816  * A structure used to a capture exception table entry in a Java method.
 817  */
 818 typedef struct {
 819     jint start_pc;
 820     jint end_pc;
 821     jint handler_pc;
 822     jint catchType;
 823 } JVM_ExceptionTableEntryType;
 824 
 825 /*
 826  * Returns the exception table entry at entry_index of a given method.
 827  * Places the result in the given buffer.
 828  *
 829  * The method is identified by method_index.
 830  */
 831 JNIEXPORT void JNICALL
 832 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
 833                                    jint entry_index,
 834                                    JVM_ExceptionTableEntryType *entry);
 835 
 836 /*
 837  * Returns the length of the exception table of a given method.
 838  * The method is identified by method_index.
 839  */
 840 JNIEXPORT jint JNICALL
 841 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
 842 
 843 /*
 844  * Returns the modifiers of a given field.
 845  * The field is identified by field_index.
 846  */
 847 JNIEXPORT jint JNICALL
 848 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
 849 
 850 /*
 851  * Returns the modifiers of a given method.
 852  * The method is identified by method_index.
 853  */
 854 JNIEXPORT jint JNICALL
 855 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
 856 
 857 /*
 858  * Returns the number of local variables of a given method.
 859  * The method is identified by method_index.
 860  */
 861 JNIEXPORT jint JNICALL
 862 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
 863 
 864 /*
 865  * Returns the number of arguments (including this pointer) of a given method.
 866  * The method is identified by method_index.
 867  */
 868 JNIEXPORT jint JNICALL
 869 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
 870 
 871 /*
 872  * Returns the maximum amount of stack (in words) used by a given method.
 873  * The method is identified by method_index.
 874  */
 875 JNIEXPORT jint JNICALL
 876 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
 877 
 878 /*
 879  * Is a given method a constructor.
 880  * The method is identified by method_index.
 881  */
 882 JNIEXPORT jboolean JNICALL
 883 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
 884 
 885 /*
 886  * Is the given method generated by the VM.
 887  * The method is identified by method_index.
 888  */
 889 JNIEXPORT jboolean JNICALL
 890 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
 891 
 892 /*
 893  * Returns the name of a given method in UTF format.
 894  * The result remains valid until JVM_ReleaseUTF is called.
 895  *
 896  * The caller must treat the string as a constant and not modify it
 897  * in any way.
 898  */
 899 JNIEXPORT const char * JNICALL
 900 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
 901 
 902 /*
 903  * Returns the signature of a given method in UTF format.
 904  * The result remains valid until JVM_ReleaseUTF is called.
 905  *
 906  * The caller must treat the string as a constant and not modify it
 907  * in any way.
 908  */
 909 JNIEXPORT const char * JNICALL
 910 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
 911 
 912 /*
 913  * Returns the name of the field referred to at a given constant pool
 914  * index.
 915  *
 916  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 917  * is called.
 918  *
 919  * The caller must treat the string as a constant and not modify it
 920  * in any way.
 921  */
 922 JNIEXPORT const char * JNICALL
 923 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
 924 
 925 /*
 926  * Returns the name of the method referred to at a given constant pool
 927  * index.
 928  *
 929  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 930  * is called.
 931  *
 932  * The caller must treat the string as a constant and not modify it
 933  * in any way.
 934  */
 935 JNIEXPORT const char * JNICALL
 936 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
 937 
 938 /*
 939  * Returns the signature of the method referred to at a given constant pool
 940  * index.
 941  *
 942  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 943  * is called.
 944  *
 945  * The caller must treat the string as a constant and not modify it
 946  * in any way.
 947  */
 948 JNIEXPORT const char * JNICALL
 949 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
 950 
 951 /*
 952  * Returns the signature of the field referred to at a given constant pool
 953  * index.
 954  *
 955  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 956  * is called.
 957  *
 958  * The caller must treat the string as a constant and not modify it
 959  * in any way.
 960  */
 961 JNIEXPORT const char * JNICALL
 962 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
 963 
 964 /*
 965  * Returns the class name referred to at a given constant pool index.
 966  *
 967  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 968  * is called.
 969  *
 970  * The caller must treat the string as a constant and not modify it
 971  * in any way.
 972  */
 973 JNIEXPORT const char * JNICALL
 974 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
 975 
 976 /*
 977  * Returns the class name referred to at a given constant pool index.
 978  *
 979  * The constant pool entry must refer to a CONSTANT_Fieldref.
 980  *
 981  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 982  * is called.
 983  *
 984  * The caller must treat the string as a constant and not modify it
 985  * in any way.
 986  */
 987 JNIEXPORT const char * JNICALL
 988 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
 989 
 990 /*
 991  * Returns the class name referred to at a given constant pool index.
 992  *
 993  * The constant pool entry must refer to CONSTANT_Methodref or
 994  * CONSTANT_InterfaceMethodref.
 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_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1004 
1005 /*
1006  * Returns the modifiers of a field in calledClass. The field is
1007  * referred to in class cb at constant pool entry index.
1008  *
1009  * The caller must treat the string as a constant and not modify it
1010  * in any way.
1011  *
1012  * Returns -1 if the field does not exist in calledClass.
1013  */
1014 JNIEXPORT jint JNICALL
1015 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1016 
1017 /*
1018  * Returns the modifiers of a method in calledClass. The method is
1019  * referred to in class cb at constant pool entry index.
1020  *
1021  * Returns -1 if the method does not exist in calledClass.
1022  */
1023 JNIEXPORT jint JNICALL
1024 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1025 
1026 /*
1027  * Releases the UTF string obtained from the VM.
1028  */
1029 JNIEXPORT void JNICALL
1030 JVM_ReleaseUTF(const char *utf);
1031 
1032 /*
1033  * Compare if two classes are in the same package.
1034  */
1035 JNIEXPORT jboolean JNICALL
1036 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1037 
1038 /* Get classfile constants */
1039 #include "classfile_constants.h"
1040 
1041 /*
1042  * A function defined by the byte-code verifier and called by the VM.
1043  * This is not a function implemented in the VM.
1044  *
1045  * Returns JNI_FALSE if verification fails. A detailed error message
1046  * will be places in msg_buf, whose length is specified by buf_len.
1047  */
1048 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1049                                   jclass cb,
1050                                   char * msg_buf,
1051                                   jint buf_len);
1052 
1053 
1054 /*
1055  * Support for a VM-independent class format checker.
1056  */
1057 typedef struct {
1058     unsigned long code;    /* byte code */
1059     unsigned long excs;    /* exceptions */
1060     unsigned long etab;    /* catch table */
1061     unsigned long lnum;    /* line number */
1062     unsigned long lvar;    /* local vars */
1063 } method_size_info;
1064 
1065 typedef struct {
1066     unsigned int constants;    /* constant pool */
1067     unsigned int fields;
1068     unsigned int methods;
1069     unsigned int interfaces;
1070     unsigned int fields2;      /* number of static 2-word fields */
1071     unsigned int innerclasses; /* # of records in InnerClasses attr */
1072 
1073     method_size_info clinit;   /* memory used in clinit */
1074     method_size_info main;     /* used everywhere else */
1075 } class_size_info;
1076 
1077 /*
1078  * Functions defined in libjava.so to perform string conversions.
1079  *
1080  */
1081 
1082 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1083 
1084 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1085 
1086 /* This is the function defined in libjava.so that performs class
1087  * format checks. This functions fills in size information about
1088  * the class file and returns:
1089  *
1090  *   0: good
1091  *  -1: out of memory
1092  *  -2: bad format
1093  *  -3: unsupported version
1094  *  -4: bad class name
1095  */
1096 
1097 typedef jint (*check_format_fn_t)(char *class_name,
1098                                   unsigned char *data,
1099                                   unsigned int data_size,
1100                                   class_size_info *class_size,
1101                                   char *message_buffer,
1102                                   jint buffer_length,
1103                                   jboolean measure_only,
1104                                   jboolean check_relaxed);
1105 
1106 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1107                                         JVM_ACC_FINAL | \
1108                                         JVM_ACC_SUPER | \
1109                                         JVM_ACC_INTERFACE | \
1110                                         JVM_ACC_ABSTRACT | \
1111                                         JVM_ACC_ANNOTATION | \
1112                                         JVM_ACC_ENUM | \
1113                                         JVM_ACC_SYNTHETIC)
1114 
1115 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1116                                         JVM_ACC_PRIVATE | \
1117                                         JVM_ACC_PROTECTED | \
1118                                         JVM_ACC_STATIC | \
1119                                         JVM_ACC_FINAL | \
1120                                         JVM_ACC_VOLATILE | \
1121                                         JVM_ACC_TRANSIENT | \
1122                                         JVM_ACC_ENUM | \
1123                                         JVM_ACC_SYNTHETIC)
1124 
1125 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1126                                          JVM_ACC_PRIVATE | \
1127                                          JVM_ACC_PROTECTED | \
1128                                          JVM_ACC_STATIC | \
1129                                          JVM_ACC_FINAL | \
1130                                          JVM_ACC_SYNCHRONIZED | \
1131                                          JVM_ACC_BRIDGE | \
1132                                          JVM_ACC_VARARGS | \
1133                                          JVM_ACC_NATIVE | \
1134                                          JVM_ACC_ABSTRACT | \
1135                                          JVM_ACC_STRICT | \
1136                                          JVM_ACC_SYNTHETIC)
1137 
1138 /*
1139  * This is the function defined in libjava.so to perform path
1140  * canonicalization. VM call this function before opening jar files
1141  * to load system classes.
1142  *
1143  */
1144 
1145 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1146 
1147 /*************************************************************************
1148  PART 3: I/O and Network Support
1149  ************************************************************************/
1150 
1151 /*
1152  * Convert a pathname into native format.  This function does syntactic
1153  * cleanup, such as removing redundant separator characters.  It modifies
1154  * the given pathname string in place.
1155  */
1156 JNIEXPORT char * JNICALL
1157 JVM_NativePath(char *);
1158 
1159 /*
1160  * The standard printing functions supported by the Java VM. (Should they
1161  * be renamed to JVM_* in the future?
1162  */
1163 
1164 /*
1165  * BE CAREFUL! The following functions do not implement the
1166  * full feature set of standard C printf formats.
1167  */
1168 int
1169 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1170 
1171 int
1172 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1173 
1174 int
1175 jio_fprintf(FILE *, const char *fmt, ...);
1176 
1177 int
1178 jio_vfprintf(FILE *, const char *fmt, va_list args);
1179 
1180 
1181 JNIEXPORT void * JNICALL
1182 JVM_RawMonitorCreate(void);
1183 
1184 JNIEXPORT void JNICALL
1185 JVM_RawMonitorDestroy(void *mon);
1186 
1187 JNIEXPORT jint JNICALL
1188 JVM_RawMonitorEnter(void *mon);
1189 
1190 JNIEXPORT void JNICALL
1191 JVM_RawMonitorExit(void *mon);
1192 
1193 /*
1194  * java.lang.management support
1195  */
1196 JNIEXPORT void* JNICALL
1197 JVM_GetManagement(jint version);
1198 
1199 /*
1200  * com.sun.tools.attach.VirtualMachine support
1201  *
1202  * Initialize the agent properties with the properties maintained in the VM.
1203  */
1204 JNIEXPORT jobject JNICALL
1205 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1206 
1207 JNIEXPORT jstring JNICALL
1208 JVM_GetTemporaryDirectory(JNIEnv *env);
1209 
1210 /* Generics reflection support.
1211  *
1212  * Returns information about the given class's EnclosingMethod
1213  * attribute, if present, or null if the class had no enclosing
1214  * method.
1215  *
1216  * If non-null, the returned array contains three elements. Element 0
1217  * is the java.lang.Class of which the enclosing method is a member,
1218  * and elements 1 and 2 are the java.lang.Strings for the enclosing
1219  * method's name and descriptor, respectively.
1220  */
1221 JNIEXPORT jobjectArray JNICALL
1222 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1223 
1224 /* =========================================================================
1225  * The following defines a private JVM interface that the JDK can query
1226  * for the JVM version and capabilities.  sun.misc.Version defines
1227  * the methods for getting the VM version and its capabilities.
1228  *
1229  * When a new bit is added, the following should be updated to provide
1230  * access to the new capability:
1231  *    HS:   JVM_GetVersionInfo and Abstract_VM_Version class
1232  *    SDK:  Version class
1233  *
1234  * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1235  * JVM to query for the JDK version and capabilities.
1236  *
1237  * When a new bit is added, the following should be updated to provide
1238  * access to the new capability:
1239  *    HS:   JDK_Version class
1240  *    SDK:  JDK_GetVersionInfo0
1241  *
1242  * ==========================================================================
1243  */
1244 typedef struct {
1245     unsigned int jvm_version;  /* Encoded $VNUM as specified by JEP-223 */
1246     unsigned int patch_version : 8; /* JEP-223 patch version */
1247     unsigned int reserved3 : 8;
1248     unsigned int reserved1 : 16;
1249     unsigned int reserved2;
1250 
1251     /* The following bits represents JVM supports that JDK has dependency on.
1252      * JDK can use these bits to determine which JVM version
1253      * and support it has to maintain runtime compatibility.
1254      *
1255      * When a new bit is added in a minor or update release, make sure
1256      * the new bit is also added in the main/baseline.
1257      */
1258     unsigned int is_attach_supported : 1;
1259     unsigned int : 31;
1260     unsigned int : 32;
1261     unsigned int : 32;
1262 } jvm_version_info;
1263 
1264 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1265 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1266 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1267 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1268 
1269 JNIEXPORT void JNICALL
1270 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1271 
1272 typedef struct {
1273     unsigned int jdk_version; /* Encoded $VNUM as specified by JEP-223 */
1274     unsigned int patch_version : 8; /* JEP-223 patch version */
1275     unsigned int reserved3 : 8;
1276     unsigned int reserved1 : 16;
1277     unsigned int reserved2;
1278 
1279     /* The following bits represents new JDK supports that VM has dependency on.
1280      * VM implementation can use these bits to determine which JDK version
1281      * and support it has to maintain runtime compatibility.
1282      *
1283      * When a new bit is added in a minor or update release, make sure
1284      * the new bit is also added in the main/baseline.
1285      */
1286     unsigned int thread_park_blocker : 1;
1287     unsigned int post_vm_init_hook_enabled : 1;
1288     unsigned int pending_list_uses_discovered_field : 1;
1289     unsigned int : 29;
1290     unsigned int : 32;
1291     unsigned int : 32;
1292 } jdk_version_info;
1293 
1294 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1295 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1296 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1297 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1298 
1299 /*
1300  * This is the function JDK_GetVersionInfo0 defined in libjava.so
1301  * that is dynamically looked up by JVM.
1302  */
1303 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1304 
1305 /*
1306  * This structure is used by the launcher to get the default thread
1307  * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1308  * version of 1.1.  As it is not supported otherwise, it has been removed
1309  * from jni.h
1310  */
1311 typedef struct JDK1_1InitArgs {
1312     jint version;
1313 
1314     char **properties;
1315     jint checkSource;
1316     jint nativeStackSize;
1317     jint javaStackSize;
1318     jint minHeapSize;
1319     jint maxHeapSize;
1320     jint verifyMode;
1321     char *classpath;
1322 
1323     jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1324     void (JNICALL *exit)(jint code);
1325     void (JNICALL *abort)(void);
1326 
1327     jint enableClassGC;
1328     jint enableVerboseGC;
1329     jint disableAsyncGC;
1330     jint verbose;
1331     jboolean debugging;
1332     jint debugPort;
1333 } JDK1_1InitArgs;
1334 
1335 
1336 #ifdef __cplusplus
1337 } /* extern "C" */
1338 
1339 #endif /* __cplusplus */
1340 
1341 #endif /* !_JAVASOFT_JVM_H_ */
--- EOF ---