1 /*
   2  * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  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_BeforeHalt();
 123 
 124 JNIEXPORT void JNICALL
 125 JVM_Halt(jint code);
 126 
 127 JNIEXPORT void JNICALL
 128 JVM_GC(void);
 129 
 130 /* Returns the number of real-time milliseconds that have elapsed since the
 131  * least-recently-inspected heap object was last inspected by the garbage
 132  * collector.
 133  *
 134  * For simple stop-the-world collectors this value is just the time
 135  * since the most recent collection.  For generational collectors it is the
 136  * time since the oldest generation was most recently collected.  Other
 137  * collectors are free to return a pessimistic estimate of the elapsed time, or
 138  * simply the time since the last full collection was performed.
 139  *
 140  * Note that in the presence of reference objects, a given object that is no
 141  * longer strongly reachable may have to be inspected multiple times before it
 142  * can be reclaimed.
 143  */
 144 JNIEXPORT jlong JNICALL
 145 JVM_MaxObjectInspectionAge(void);
 146 
 147 JNIEXPORT jlong JNICALL
 148 JVM_TotalMemory(void);
 149 
 150 JNIEXPORT jlong JNICALL
 151 JVM_FreeMemory(void);
 152 
 153 JNIEXPORT jlong JNICALL
 154 JVM_MaxMemory(void);
 155 
 156 JNIEXPORT jint JNICALL
 157 JVM_ActiveProcessorCount(void);
 158 
 159 JNIEXPORT void * JNICALL
 160 JVM_LoadLibrary(const char *name);
 161 
 162 JNIEXPORT void JNICALL
 163 JVM_UnloadLibrary(void * handle);
 164 
 165 JNIEXPORT void * JNICALL
 166 JVM_FindLibraryEntry(void *handle, const char *name);
 167 
 168 JNIEXPORT jboolean JNICALL
 169 JVM_IsSupportedJNIVersion(jint version);
 170 
 171 JNIEXPORT jobjectArray JNICALL
 172 JVM_GetVmArguments(JNIEnv *env);
 173 
 174 JNIEXPORT void JNICALL
 175 JVM_InitializeFromArchive(JNIEnv* env, jclass cls);
 176 
 177 /*
 178  * java.lang.Throwable
 179  */
 180 JNIEXPORT void JNICALL
 181 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
 182 
 183 /*
 184  * java.lang.StackTraceElement
 185  */
 186 JNIEXPORT void JNICALL
 187 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);
 188 
 189 JNIEXPORT void JNICALL
 190 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
 191 
 192 /*
 193  * java.lang.StackWalker
 194  */
 195 enum {
 196   JVM_STACKWALK_FILL_CLASS_REFS_ONLY       = 0x2,
 197   JVM_STACKWALK_GET_CALLER_CLASS           = 0x04,
 198   JVM_STACKWALK_SHOW_HIDDEN_FRAMES         = 0x20,
 199   JVM_STACKWALK_FILL_LIVE_STACK_FRAMES     = 0x100
 200 };
 201 
 202 JNIEXPORT jobject JNICALL
 203 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
 204                   jint skip_frames, jint frame_count, jint start_index,
 205                   jobjectArray frames);
 206 
 207 JNIEXPORT jint JNICALL
 208 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
 209                   jint frame_count, jint start_index,
 210                   jobjectArray frames);
 211 
 212 /*
 213  * java.lang.Thread
 214  */
 215 JNIEXPORT void JNICALL
 216 JVM_StartThread(JNIEnv *env, jobject thread);
 217 
 218 JNIEXPORT void JNICALL
 219 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
 220 
 221 JNIEXPORT jboolean JNICALL
 222 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
 223 
 224 JNIEXPORT void JNICALL
 225 JVM_SuspendThread(JNIEnv *env, jobject thread);
 226 
 227 JNIEXPORT void JNICALL
 228 JVM_ResumeThread(JNIEnv *env, jobject thread);
 229 
 230 JNIEXPORT void JNICALL
 231 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
 232 
 233 JNIEXPORT void JNICALL
 234 JVM_Yield(JNIEnv *env, jclass threadClass);
 235 
 236 JNIEXPORT void JNICALL
 237 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
 238 
 239 JNIEXPORT jobject JNICALL
 240 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
 241 
 242 JNIEXPORT jint JNICALL
 243 JVM_CountStackFrames(JNIEnv *env, jobject thread);
 244 
 245 JNIEXPORT void JNICALL
 246 JVM_Interrupt(JNIEnv *env, jobject thread);
 247 
 248 JNIEXPORT jboolean JNICALL
 249 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
 250 
 251 JNIEXPORT jboolean JNICALL
 252 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
 253 
 254 JNIEXPORT void JNICALL
 255 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
 256 
 257 JNIEXPORT jobjectArray JNICALL
 258 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
 259 
 260 JNIEXPORT void JNICALL
 261 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
 262 
 263 /* getStackTrace() and getAllStackTraces() method */
 264 JNIEXPORT jobjectArray JNICALL
 265 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
 266 
 267 /*
 268  * java.lang.SecurityManager
 269  */
 270 JNIEXPORT jobjectArray JNICALL
 271 JVM_GetClassContext(JNIEnv *env);
 272 
 273 /*
 274  * java.lang.Package
 275  */
 276 JNIEXPORT jstring JNICALL
 277 JVM_GetSystemPackage(JNIEnv *env, jstring name);
 278 
 279 JNIEXPORT jobjectArray JNICALL
 280 JVM_GetSystemPackages(JNIEnv *env);
 281 
 282 /*
 283  * java.lang.ref.Reference
 284  */
 285 JNIEXPORT jobject JNICALL
 286 JVM_GetAndClearReferencePendingList(JNIEnv *env);
 287 
 288 JNIEXPORT jboolean JNICALL
 289 JVM_HasReferencePendingList(JNIEnv *env);
 290 
 291 JNIEXPORT void JNICALL
 292 JVM_WaitForReferencePendingList(JNIEnv *env);
 293 
 294 /*
 295  * java.io.ObjectInputStream
 296  */
 297 JNIEXPORT jobject JNICALL
 298 JVM_LatestUserDefinedLoader(JNIEnv *env);
 299 
 300 /*
 301  * java.lang.reflect.Array
 302  */
 303 JNIEXPORT jint JNICALL
 304 JVM_GetArrayLength(JNIEnv *env, jobject arr);
 305 
 306 JNIEXPORT jobject JNICALL
 307 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
 308 
 309 JNIEXPORT jvalue JNICALL
 310 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
 311 
 312 JNIEXPORT void JNICALL
 313 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
 314 
 315 JNIEXPORT void JNICALL
 316 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
 317                              unsigned char vCode);
 318 
 319 JNIEXPORT jobject JNICALL
 320 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
 321 
 322 JNIEXPORT jobject JNICALL
 323 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
 324 
 325 
 326 /*
 327  * Returns the immediate caller class of the native method invoking
 328  * JVM_GetCallerClass.  The Method.invoke and other frames due to
 329  * reflection machinery are skipped.
 330  *
 331  * The caller is expected to be marked with
 332  * jdk.internal.reflect.CallerSensitive. The JVM will throw an
 333  * error if it is not marked properly.
 334  */
 335 JNIEXPORT jclass JNICALL
 336 JVM_GetCallerClass(JNIEnv *env);
 337 
 338 
 339 /*
 340  * Find primitive classes
 341  * utf: class name
 342  */
 343 JNIEXPORT jclass JNICALL
 344 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
 345 
 346 
 347 /*
 348  * Find a class from a boot class loader. Returns NULL if class not found.
 349  */
 350 JNIEXPORT jclass JNICALL
 351 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
 352 
 353 /*
 354  * Find a class from a given class loader.  Throws ClassNotFoundException.
 355  *  name:   name of class
 356  *  init:   whether initialization is done
 357  *  loader: class loader to look up the class. This may not be the same as the caller's
 358  *          class loader.
 359  *  caller: initiating class. The initiating class may be null when a security
 360  *          manager is not installed.
 361  */
 362 JNIEXPORT jclass JNICALL
 363 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
 364                         jobject loader, jclass caller);
 365 
 366 /*
 367  * Find a class from a given class.
 368  */
 369 JNIEXPORT jclass JNICALL
 370 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
 371                              jclass from);
 372 
 373 /* Find a loaded class cached by the VM */
 374 JNIEXPORT jclass JNICALL
 375 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
 376 
 377 /* Define a class */
 378 JNIEXPORT jclass JNICALL
 379 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
 380                 jsize len, jobject pd);
 381 
 382 /* Define a class with a source (added in JDK1.5) */
 383 JNIEXPORT jclass JNICALL
 384 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
 385                           const jbyte *buf, jsize len, jobject pd,
 386                           const char *source);
 387 
 388 /*
 389  * Module support funcions
 390  */
 391 
 392 /*
 393  * Define a module with the specified packages and bind the module to the
 394  * given class loader.
 395  *  module:       module to define
 396  *  is_open:      specifies if module is open (currently ignored)
 397  *  version:      the module version
 398  *  location:     the module location
 399  *  packages:     list of packages in the module
 400  *  num_packages: number of packages in the module
 401  */
 402 JNIEXPORT void JNICALL
 403 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
 404                  jstring location, const char* const* packages, jsize num_packages);
 405 
 406 /*
 407  * Set the boot loader's unnamed module.
 408  *  module: boot loader's unnamed module
 409  */
 410 JNIEXPORT void JNICALL
 411 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
 412 
 413 /*
 414  * Do a qualified export of a package.
 415  *  from_module: module containing the package to export
 416  *  package:     name of the package to export
 417  *  to_module:   module to export the package to
 418  */
 419 JNIEXPORT void JNICALL
 420 JVM_AddModuleExports(JNIEnv *env, jobject from_module, const char* package, jobject to_module);
 421 
 422 /*
 423  * Do an export of a package to all unnamed modules.
 424  *  from_module: module containing the package to export
 425  *  package:     name of the package to export to all unnamed modules
 426  */
 427 JNIEXPORT void JNICALL
 428 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, const char* package);
 429 
 430 /*
 431  * Do an unqualified export of a package.
 432  *  from_module: module containing the package to export
 433  *  package:     name of the package to export
 434  */
 435 JNIEXPORT void JNICALL
 436 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, const char* package);
 437 
 438 /*
 439  * Add a module to the list of modules that a given module can read.
 440  *  from_module:   module requesting read access
 441  *  source_module: module that from_module wants to read
 442  */
 443 JNIEXPORT void JNICALL
 444 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
 445 
 446 /*
 447  * Reflection support functions
 448  */
 449 
 450 JNIEXPORT jstring JNICALL
 451 JVM_GetClassName(JNIEnv *env, jclass cls);
 452 
 453 JNIEXPORT jobjectArray JNICALL
 454 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
 455 
 456 JNIEXPORT jboolean JNICALL
 457 JVM_IsInterface(JNIEnv *env, jclass cls);
 458 
 459 JNIEXPORT jobjectArray JNICALL
 460 JVM_GetClassSigners(JNIEnv *env, jclass cls);
 461 
 462 JNIEXPORT void JNICALL
 463 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
 464 
 465 JNIEXPORT jobject JNICALL
 466 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
 467 
 468 JNIEXPORT jboolean JNICALL
 469 JVM_IsArrayClass(JNIEnv *env, jclass cls);
 470 
 471 JNIEXPORT jboolean JNICALL
 472 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
 473 
 474 JNIEXPORT jint JNICALL
 475 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
 476 
 477 JNIEXPORT jobjectArray JNICALL
 478 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
 479 
 480 JNIEXPORT jclass JNICALL
 481 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
 482 
 483 JNIEXPORT jstring JNICALL
 484 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
 485 
 486 /* Generics support (JDK 1.5) */
 487 JNIEXPORT jstring JNICALL
 488 JVM_GetClassSignature(JNIEnv *env, jclass cls);
 489 
 490 /* Annotations support (JDK 1.5) */
 491 JNIEXPORT jbyteArray JNICALL
 492 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
 493 
 494 /* Type use annotations support (JDK 1.8) */
 495 
 496 JNIEXPORT jbyteArray JNICALL
 497 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
 498 
 499 JNIEXPORT jbyteArray JNICALL
 500 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
 501 
 502 JNIEXPORT jbyteArray JNICALL
 503 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
 504 
 505 /*
 506  * New (JDK 1.4) reflection implementation
 507  */
 508 
 509 JNIEXPORT jobjectArray JNICALL
 510 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 511 
 512 JNIEXPORT jobjectArray JNICALL
 513 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 514 
 515 JNIEXPORT jobjectArray JNICALL
 516 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 517 
 518 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
 519    This returns the access flags for the class as specified in the
 520    class file rather than searching the InnerClasses attribute (if
 521    present) to find the source-level access flags. Only the values of
 522    the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
 523    valid. */
 524 JNIEXPORT jint JNICALL
 525 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
 526 
 527 /* Nestmates - since JDK 11 */
 528 
 529 JNIEXPORT jboolean JNICALL
 530 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member);
 531 
 532 JNIEXPORT jclass JNICALL
 533 JVM_GetNestHost(JNIEnv *env, jclass current);
 534 
 535 JNIEXPORT jobjectArray JNICALL
 536 JVM_GetNestMembers(JNIEnv *env, jclass current);
 537 
 538 /* The following two reflection routines are still needed due to startup time issues */
 539 /*
 540  * java.lang.reflect.Method
 541  */
 542 JNIEXPORT jobject JNICALL
 543 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
 544 
 545 /*
 546  * java.lang.reflect.Constructor
 547  */
 548 JNIEXPORT jobject JNICALL
 549 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
 550 
 551 /*
 552  * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
 553  */
 554 
 555 JNIEXPORT jobject JNICALL
 556 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
 557 
 558 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
 559 (JNIEnv *env, jobject unused, jobject jcpool);
 560 
 561 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
 562 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 563 
 564 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
 565 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 566 
 567 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
 568 (JNIEnv *env, jobject obj, jobject unused, jint index);
 569 
 570 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
 571 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 572 
 573 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
 574 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 575 
 576 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
 577 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 578 
 579 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
 580 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 581 
 582 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
 583 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 584 
 585 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
 586 (JNIEnv *env, jobject obj, jobject unused, jint index);
 587 
 588 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
 589 (JNIEnv *env, jobject obj, jobject unused, jint index);
 590 
 591 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
 592 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 593 
 594 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
 595 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 596 
 597 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
 598 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 599 
 600 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
 601 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 602 
 603 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
 604 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 605 
 606 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
 607 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 608 
 609 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
 610 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 611 
 612 /*
 613  * Parameter reflection
 614  */
 615 
 616 JNIEXPORT jobjectArray JNICALL
 617 JVM_GetMethodParameters(JNIEnv *env, jobject method);
 618 
 619 /*
 620  * java.security.*
 621  */
 622 
 623 JNIEXPORT jobject JNICALL
 624 JVM_DoPrivileged(JNIEnv *env, jclass cls,
 625                  jobject action, jobject context, jboolean wrapException);
 626 
 627 JNIEXPORT jobject JNICALL
 628 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
 629 
 630 JNIEXPORT jobject JNICALL
 631 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
 632 
 633 /*
 634  * Signal support, used to implement the shutdown sequence.  Every VM must
 635  * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
 636  * (^C) and the latter for external termination (kill, system shutdown, etc.).
 637  * Other platform-dependent signal values may also be supported.
 638  */
 639 
 640 JNIEXPORT void * JNICALL
 641 JVM_RegisterSignal(jint sig, void *handler);
 642 
 643 JNIEXPORT jboolean JNICALL
 644 JVM_RaiseSignal(jint sig);
 645 
 646 JNIEXPORT jint JNICALL
 647 JVM_FindSignal(const char *name);
 648 
 649 /*
 650  * Retrieve the assertion directives for the specified class.
 651  */
 652 JNIEXPORT jboolean JNICALL
 653 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
 654 
 655 /*
 656  * Retrieve the assertion directives from the VM.
 657  */
 658 JNIEXPORT jobject JNICALL
 659 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
 660 
 661 /*
 662  * java.util.concurrent.atomic.AtomicLong
 663  */
 664 JNIEXPORT jboolean JNICALL
 665 JVM_SupportsCX8(void);
 666 
 667 /*
 668  * com.sun.dtrace.jsdt support
 669  */
 670 
 671 #define JVM_TRACING_DTRACE_VERSION 1
 672 
 673 /*
 674  * Structure to pass one probe description to JVM
 675  */
 676 typedef struct {
 677     jmethodID method;
 678     jstring   function;
 679     jstring   name;
 680     void*            reserved[4];     // for future use
 681 } JVM_DTraceProbe;
 682 
 683 /**
 684  * Encapsulates the stability ratings for a DTrace provider field
 685  */
 686 typedef struct {
 687     jint nameStability;
 688     jint dataStability;
 689     jint dependencyClass;
 690 } JVM_DTraceInterfaceAttributes;
 691 
 692 /*
 693  * Structure to pass one provider description to JVM
 694  */
 695 typedef struct {
 696     jstring                       name;
 697     JVM_DTraceProbe*              probes;
 698     jint                          probe_count;
 699     JVM_DTraceInterfaceAttributes providerAttributes;
 700     JVM_DTraceInterfaceAttributes moduleAttributes;
 701     JVM_DTraceInterfaceAttributes functionAttributes;
 702     JVM_DTraceInterfaceAttributes nameAttributes;
 703     JVM_DTraceInterfaceAttributes argsAttributes;
 704     void*                         reserved[4]; // for future use
 705 } JVM_DTraceProvider;
 706 
 707 /*
 708  * Get the version number the JVM was built with
 709  */
 710 JNIEXPORT jint JNICALL
 711 JVM_DTraceGetVersion(JNIEnv* env);
 712 
 713 /*
 714  * Register new probe with given signature, return global handle
 715  *
 716  * The version passed in is the version that the library code was
 717  * built with.
 718  */
 719 JNIEXPORT jlong JNICALL
 720 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
 721   jint providers_count, JVM_DTraceProvider* providers);
 722 
 723 /*
 724  * Check JSDT probe
 725  */
 726 JNIEXPORT jboolean JNICALL
 727 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
 728 
 729 /*
 730  * Destroy custom DOF
 731  */
 732 JNIEXPORT void JNICALL
 733 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
 734 
 735 /*
 736  * Check to see if DTrace is supported by OS
 737  */
 738 JNIEXPORT jboolean JNICALL
 739 JVM_DTraceIsSupported(JNIEnv* env);
 740 
 741 /*************************************************************************
 742  PART 2: Support for the Verifier and Class File Format Checker
 743  ************************************************************************/
 744 /*
 745  * Return the class name in UTF format. The result is valid
 746  * until JVM_ReleaseUTf is called.
 747  *
 748  * The caller must treat the string as a constant and not modify it
 749  * in any way.
 750  */
 751 JNIEXPORT const char * JNICALL
 752 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
 753 
 754 /*
 755  * Returns the constant pool types in the buffer provided by "types."
 756  */
 757 JNIEXPORT void JNICALL
 758 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
 759 
 760 /*
 761  * Returns the number of Constant Pool entries.
 762  */
 763 JNIEXPORT jint JNICALL
 764 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
 765 
 766 /*
 767  * Returns the number of *declared* fields or methods.
 768  */
 769 JNIEXPORT jint JNICALL
 770 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
 771 
 772 JNIEXPORT jint JNICALL
 773 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
 774 
 775 /*
 776  * Returns the CP indexes of exceptions raised by a given method.
 777  * Places the result in the given buffer.
 778  *
 779  * The method is identified by method_index.
 780  */
 781 JNIEXPORT void JNICALL
 782 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
 783                                 unsigned short *exceptions);
 784 /*
 785  * Returns the number of exceptions raised by a given method.
 786  * The method is identified by method_index.
 787  */
 788 JNIEXPORT jint JNICALL
 789 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
 790 
 791 /*
 792  * Returns the byte code sequence of a given method.
 793  * Places the result in the given buffer.
 794  *
 795  * The method is identified by method_index.
 796  */
 797 JNIEXPORT void JNICALL
 798 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
 799                         unsigned char *code);
 800 
 801 /*
 802  * Returns the length of the byte code sequence of a given method.
 803  * The method is identified by method_index.
 804  */
 805 JNIEXPORT jint JNICALL
 806 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
 807 
 808 /*
 809  * A structure used to a capture exception table entry in a Java method.
 810  */
 811 typedef struct {
 812     jint start_pc;
 813     jint end_pc;
 814     jint handler_pc;
 815     jint catchType;
 816 } JVM_ExceptionTableEntryType;
 817 
 818 /*
 819  * Returns the exception table entry at entry_index of a given method.
 820  * Places the result in the given buffer.
 821  *
 822  * The method is identified by method_index.
 823  */
 824 JNIEXPORT void JNICALL
 825 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
 826                                    jint entry_index,
 827                                    JVM_ExceptionTableEntryType *entry);
 828 
 829 /*
 830  * Returns the length of the exception table of a given method.
 831  * The method is identified by method_index.
 832  */
 833 JNIEXPORT jint JNICALL
 834 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
 835 
 836 /*
 837  * Returns the modifiers of a given field.
 838  * The field is identified by field_index.
 839  */
 840 JNIEXPORT jint JNICALL
 841 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
 842 
 843 /*
 844  * Returns the modifiers of a given method.
 845  * The method is identified by method_index.
 846  */
 847 JNIEXPORT jint JNICALL
 848 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
 849 
 850 /*
 851  * Returns the number of local variables of a given method.
 852  * The method is identified by method_index.
 853  */
 854 JNIEXPORT jint JNICALL
 855 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
 856 
 857 /*
 858  * Returns the number of arguments (including this pointer) of a given method.
 859  * The method is identified by method_index.
 860  */
 861 JNIEXPORT jint JNICALL
 862 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
 863 
 864 /*
 865  * Returns the maximum amount of stack (in words) used by a given method.
 866  * The method is identified by method_index.
 867  */
 868 JNIEXPORT jint JNICALL
 869 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
 870 
 871 /*
 872  * Is a given method a constructor.
 873  * The method is identified by method_index.
 874  */
 875 JNIEXPORT jboolean JNICALL
 876 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
 877 
 878 /*
 879  * Is the given method generated by the VM.
 880  * The method is identified by method_index.
 881  */
 882 JNIEXPORT jboolean JNICALL
 883 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
 884 
 885 /*
 886  * Returns the name of a given method in UTF format.
 887  * The result remains valid until JVM_ReleaseUTF is called.
 888  *
 889  * The caller must treat the string as a constant and not modify it
 890  * in any way.
 891  */
 892 JNIEXPORT const char * JNICALL
 893 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
 894 
 895 /*
 896  * Returns the signature of a given method in UTF format.
 897  * The result remains valid until JVM_ReleaseUTF is called.
 898  *
 899  * The caller must treat the string as a constant and not modify it
 900  * in any way.
 901  */
 902 JNIEXPORT const char * JNICALL
 903 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
 904 
 905 /*
 906  * Returns the name of the field referred to at a given constant pool
 907  * index.
 908  *
 909  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 910  * is called.
 911  *
 912  * The caller must treat the string as a constant and not modify it
 913  * in any way.
 914  */
 915 JNIEXPORT const char * JNICALL
 916 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
 917 
 918 /*
 919  * Returns the name of the method referred to at a given constant pool
 920  * index.
 921  *
 922  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 923  * is called.
 924  *
 925  * The caller must treat the string as a constant and not modify it
 926  * in any way.
 927  */
 928 JNIEXPORT const char * JNICALL
 929 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
 930 
 931 /*
 932  * Returns the signature of the method referred to at a given constant pool
 933  * index.
 934  *
 935  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 936  * is called.
 937  *
 938  * The caller must treat the string as a constant and not modify it
 939  * in any way.
 940  */
 941 JNIEXPORT const char * JNICALL
 942 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
 943 
 944 /*
 945  * Returns the signature of the field referred to at a given constant pool
 946  * index.
 947  *
 948  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 949  * is called.
 950  *
 951  * The caller must treat the string as a constant and not modify it
 952  * in any way.
 953  */
 954 JNIEXPORT const char * JNICALL
 955 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
 956 
 957 /*
 958  * Returns the class name referred to at a given constant pool index.
 959  *
 960  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 961  * is called.
 962  *
 963  * The caller must treat the string as a constant and not modify it
 964  * in any way.
 965  */
 966 JNIEXPORT const char * JNICALL
 967 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
 968 
 969 /*
 970  * Returns the class name referred to at a given constant pool index.
 971  *
 972  * The constant pool entry must refer to a CONSTANT_Fieldref.
 973  *
 974  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 975  * is called.
 976  *
 977  * The caller must treat the string as a constant and not modify it
 978  * in any way.
 979  */
 980 JNIEXPORT const char * JNICALL
 981 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
 982 
 983 /*
 984  * Returns the class name referred to at a given constant pool index.
 985  *
 986  * The constant pool entry must refer to CONSTANT_Methodref or
 987  * CONSTANT_InterfaceMethodref.
 988  *
 989  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 990  * is called.
 991  *
 992  * The caller must treat the string as a constant and not modify it
 993  * in any way.
 994  */
 995 JNIEXPORT const char * JNICALL
 996 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
 997 
 998 /*
 999  * Returns the modifiers of a field in calledClass. The field is
1000  * referred to in class cb at constant pool entry index.
1001  *
1002  * The caller must treat the string as a constant and not modify it
1003  * in any way.
1004  *
1005  * Returns -1 if the field does not exist in calledClass.
1006  */
1007 JNIEXPORT jint JNICALL
1008 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1009 
1010 /*
1011  * Returns the modifiers of a method in calledClass. The method is
1012  * referred to in class cb at constant pool entry index.
1013  *
1014  * Returns -1 if the method does not exist in calledClass.
1015  */
1016 JNIEXPORT jint JNICALL
1017 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1018 
1019 /*
1020  * Releases the UTF string obtained from the VM.
1021  */
1022 JNIEXPORT void JNICALL
1023 JVM_ReleaseUTF(const char *utf);
1024 
1025 /*
1026  * Compare if two classes are in the same package.
1027  */
1028 JNIEXPORT jboolean JNICALL
1029 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1030 
1031 /* Get classfile constants */
1032 #include "classfile_constants.h"
1033 
1034 /*
1035  * A function defined by the byte-code verifier and called by the VM.
1036  * This is not a function implemented in the VM.
1037  *
1038  * Returns JNI_FALSE if verification fails. A detailed error message
1039  * will be places in msg_buf, whose length is specified by buf_len.
1040  */
1041 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1042                                   jclass cb,
1043                                   char * msg_buf,
1044                                   jint buf_len);
1045 
1046 
1047 /*
1048  * Support for a VM-independent class format checker.
1049  */
1050 typedef struct {
1051     unsigned long code;    /* byte code */
1052     unsigned long excs;    /* exceptions */
1053     unsigned long etab;    /* catch table */
1054     unsigned long lnum;    /* line number */
1055     unsigned long lvar;    /* local vars */
1056 } method_size_info;
1057 
1058 typedef struct {
1059     unsigned int constants;    /* constant pool */
1060     unsigned int fields;
1061     unsigned int methods;
1062     unsigned int interfaces;
1063     unsigned int fields2;      /* number of static 2-word fields */
1064     unsigned int innerclasses; /* # of records in InnerClasses attr */
1065 
1066     method_size_info clinit;   /* memory used in clinit */
1067     method_size_info main;     /* used everywhere else */
1068 } class_size_info;
1069 
1070 /*
1071  * Functions defined in libjava.so to perform string conversions.
1072  *
1073  */
1074 
1075 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1076 
1077 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1078 
1079 /* This is the function defined in libjava.so that performs class
1080  * format checks. This functions fills in size information about
1081  * the class file and returns:
1082  *
1083  *   0: good
1084  *  -1: out of memory
1085  *  -2: bad format
1086  *  -3: unsupported version
1087  *  -4: bad class name
1088  */
1089 
1090 typedef jint (*check_format_fn_t)(char *class_name,
1091                                   unsigned char *data,
1092                                   unsigned int data_size,
1093                                   class_size_info *class_size,
1094                                   char *message_buffer,
1095                                   jint buffer_length,
1096                                   jboolean measure_only,
1097                                   jboolean check_relaxed);
1098 
1099 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1100                                         JVM_ACC_FINAL | \
1101                                         JVM_ACC_SUPER | \
1102                                         JVM_ACC_INTERFACE | \
1103                                         JVM_ACC_ABSTRACT | \
1104                                         JVM_ACC_ANNOTATION | \
1105                                         JVM_ACC_ENUM | \
1106                                         JVM_ACC_SYNTHETIC)
1107 
1108 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1109                                         JVM_ACC_PRIVATE | \
1110                                         JVM_ACC_PROTECTED | \
1111                                         JVM_ACC_STATIC | \
1112                                         JVM_ACC_FINAL | \
1113                                         JVM_ACC_VOLATILE | \
1114                                         JVM_ACC_TRANSIENT | \
1115                                         JVM_ACC_ENUM | \
1116                                         JVM_ACC_SYNTHETIC)
1117 
1118 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1119                                          JVM_ACC_PRIVATE | \
1120                                          JVM_ACC_PROTECTED | \
1121                                          JVM_ACC_STATIC | \
1122                                          JVM_ACC_FINAL | \
1123                                          JVM_ACC_SYNCHRONIZED | \
1124                                          JVM_ACC_BRIDGE | \
1125                                          JVM_ACC_VARARGS | \
1126                                          JVM_ACC_NATIVE | \
1127                                          JVM_ACC_ABSTRACT | \
1128                                          JVM_ACC_STRICT | \
1129                                          JVM_ACC_SYNTHETIC)
1130 
1131 /*
1132  * This is the function defined in libjava.so to perform path
1133  * canonicalization. VM call this function before opening jar files
1134  * to load system classes.
1135  *
1136  */
1137 
1138 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1139 
1140 /*************************************************************************
1141  PART 3: I/O and Network Support
1142  ************************************************************************/
1143 
1144 /*
1145  * Convert a pathname into native format.  This function does syntactic
1146  * cleanup, such as removing redundant separator characters.  It modifies
1147  * the given pathname string in place.
1148  */
1149 JNIEXPORT char * JNICALL
1150 JVM_NativePath(char *);
1151 
1152 /*
1153  * The standard printing functions supported by the Java VM. (Should they
1154  * be renamed to JVM_* in the future?
1155  */
1156 
1157 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1158  *  respectively, with the following differences:
1159  * - The string written to str is always zero-terminated, also in case of
1160  *   truncation (count is too small to hold the result string), unless count
1161  *   is 0. In case of truncation count-1 characters are written and '\0'
1162  *   appendend.
1163  * - If count is too small to hold the whole string, -1 is returned across
1164  *   all platforms. */
1165 
1166 JNIEXPORT int
1167 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1168 
1169 JNIEXPORT int
1170 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1171 
1172 JNIEXPORT int
1173 jio_fprintf(FILE *, const char *fmt, ...);
1174 
1175 JNIEXPORT int
1176 jio_vfprintf(FILE *, const char *fmt, va_list args);
1177 
1178 
1179 JNIEXPORT void * JNICALL
1180 JVM_RawMonitorCreate(void);
1181 
1182 JNIEXPORT void JNICALL
1183 JVM_RawMonitorDestroy(void *mon);
1184 
1185 JNIEXPORT jint JNICALL
1186 JVM_RawMonitorEnter(void *mon);
1187 
1188 JNIEXPORT void JNICALL
1189 JVM_RawMonitorExit(void *mon);
1190 
1191 /*
1192  * java.lang.management support
1193  */
1194 JNIEXPORT void* JNICALL
1195 JVM_GetManagement(jint version);
1196 
1197 /*
1198  * com.sun.tools.attach.VirtualMachine support
1199  *
1200  * Initialize the agent properties with the properties maintained in the VM.
1201  */
1202 JNIEXPORT jobject JNICALL
1203 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1204 
1205 JNIEXPORT jstring JNICALL
1206 JVM_GetTemporaryDirectory(JNIEnv *env);
1207 
1208 /* Generics reflection support.
1209  *
1210  * Returns information about the given class's EnclosingMethod
1211  * attribute, if present, or null if the class had no enclosing
1212  * method.
1213  *
1214  * If non-null, the returned array contains three elements. Element 0
1215  * is the java.lang.Class of which the enclosing method is a member,
1216  * and elements 1 and 2 are the java.lang.Strings for the enclosing
1217  * method's name and descriptor, respectively.
1218  */
1219 JNIEXPORT jobjectArray JNICALL
1220 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1221 
1222 /* =========================================================================
1223  * The following defines a private JVM interface that the JDK can query
1224  * for the JVM version and capabilities.  sun.misc.Version defines
1225  * the methods for getting the VM version and its capabilities.
1226  *
1227  * When a new bit is added, the following should be updated to provide
1228  * access to the new capability:
1229  *    HS:   JVM_GetVersionInfo and Abstract_VM_Version class
1230  *    SDK:  Version class
1231  *
1232  * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1233  * JVM to query for the JDK version and capabilities.
1234  *
1235  * When a new bit is added, the following should be updated to provide
1236  * access to the new capability:
1237  *    HS:   JDK_Version class
1238  *    SDK:  JDK_GetVersionInfo0
1239  *
1240  * ==========================================================================
1241  */
1242 typedef struct {
1243     unsigned int jvm_version;  /* Encoded $VNUM as specified by JEP-223 */
1244     unsigned int patch_version : 8; /* JEP-223 patch version */
1245     unsigned int reserved3 : 8;
1246     unsigned int reserved1 : 16;
1247     unsigned int reserved2;
1248 
1249     /* The following bits represents JVM supports that JDK has dependency on.
1250      * JDK can use these bits to determine which JVM version
1251      * and support it has to maintain runtime compatibility.
1252      *
1253      * When a new bit is added in a minor or update release, make sure
1254      * the new bit is also added in the main/baseline.
1255      */
1256     unsigned int is_attach_supported : 1;
1257     unsigned int : 31;
1258     unsigned int : 32;
1259     unsigned int : 32;
1260 } jvm_version_info;
1261 
1262 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1263 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1264 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1265 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1266 
1267 JNIEXPORT void JNICALL
1268 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1269 
1270 typedef struct {
1271     unsigned int jdk_version; /* Encoded $VNUM as specified by JEP-223 */
1272     unsigned int patch_version : 8; /* JEP-223 patch version */
1273     unsigned int reserved3 : 8;
1274     unsigned int reserved1 : 16;
1275     unsigned int reserved2;
1276 
1277     /* The following bits represents new JDK supports that VM has dependency on.
1278      * VM implementation can use these bits to determine which JDK version
1279      * and support it has to maintain runtime compatibility.
1280      *
1281      * When a new bit is added in a minor or update release, make sure
1282      * the new bit is also added in the main/baseline.
1283      */
1284     unsigned int thread_park_blocker : 1;
1285     unsigned int post_vm_init_hook_enabled : 1;
1286     unsigned int pending_list_uses_discovered_field : 1;
1287     unsigned int : 29;
1288     unsigned int : 32;
1289     unsigned int : 32;
1290 } jdk_version_info;
1291 
1292 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1293 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1294 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1295 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1296 
1297 /*
1298  * This is the function JDK_GetVersionInfo0 defined in libjava.so
1299  * that is dynamically looked up by JVM.
1300  */
1301 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1302 
1303 /*
1304  * This structure is used by the launcher to get the default thread
1305  * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1306  * version of 1.1.  As it is not supported otherwise, it has been removed
1307  * from jni.h
1308  */
1309 typedef struct JDK1_1InitArgs {
1310     jint version;
1311 
1312     char **properties;
1313     jint checkSource;
1314     jint nativeStackSize;
1315     jint javaStackSize;
1316     jint minHeapSize;
1317     jint maxHeapSize;
1318     jint verifyMode;
1319     char *classpath;
1320 
1321     jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1322     void (JNICALL *exit)(jint code);
1323     void (JNICALL *abort)(void);
1324 
1325     jint enableClassGC;
1326     jint enableVerboseGC;
1327     jint disableAsyncGC;
1328     jint verbose;
1329     jboolean debugging;
1330     jint debugPort;
1331 } JDK1_1InitArgs;
1332 
1333 
1334 #ifdef __cplusplus
1335 } /* extern "C" */
1336 
1337 #endif /* __cplusplus */
1338 
1339 #endif /* !_JAVASOFT_JVM_H_ */