1 /*
   2  * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #ifndef _JAVASOFT_JVM_H_
  27 #define _JAVASOFT_JVM_H_
  28 
  29 #include <sys/stat.h>
  30 
  31 #include "jni.h"
  32 #include "jvm_md.h"
  33 
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37 
  38 /*
  39  * This file contains additional functions exported from the VM.
  40  * These functions are complementary to the standard JNI support.
  41  * There are three parts to this file:
  42  *
  43  * First, this file contains the VM-related functions needed by native
  44  * libraries in the standard Java API. For example, the java.lang.Object
  45  * class needs VM-level functions that wait for and notify monitors.
  46  *
  47  * Second, this file contains the functions and constant definitions
  48  * needed by the byte code verifier and class file format checker.
  49  * These functions allow the verifier and format checker to be written
  50  * in a VM-independent way.
  51  *
  52  * Third, this file contains various I/O and network operations needed
  53  * by the standard Java I/O and network APIs.
  54  */
  55 
  56 /*
  57  * Bump the version number when either of the following happens:
  58  *
  59  * 1. There is a change in JVM_* functions.
  60  *
  61  * 2. There is a change in the contract between VM and Java classes.
  62  *    For example, if the VM relies on a new private field in Thread
  63  *    class.
  64  */
  65 
  66 #define JVM_INTERFACE_VERSION 6
  67 
  68 JNIEXPORT jint JNICALL
  69 JVM_GetInterfaceVersion(void);
  70 
  71 /*************************************************************************
  72  PART 1: Functions for Native Libraries
  73  ************************************************************************/
  74 /*
  75  * java.lang.Object
  76  */
  77 JNIEXPORT jint JNICALL
  78 JVM_IHashCode(JNIEnv *env, jobject obj);
  79 
  80 JNIEXPORT void JNICALL
  81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
  82 
  83 JNIEXPORT void JNICALL
  84 JVM_MonitorNotify(JNIEnv *env, jobject obj);
  85 
  86 JNIEXPORT void JNICALL
  87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
  88 
  89 JNIEXPORT jobject JNICALL
  90 JVM_Clone(JNIEnv *env, jobject obj);
  91 
  92 /*
  93  * java.lang.String
  94  */
  95 JNIEXPORT jstring JNICALL
  96 JVM_InternString(JNIEnv *env, jstring str);
  97 
  98 /*
  99  * java.lang.System
 100  */
 101 JNIEXPORT jlong JNICALL
 102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
 103 
 104 JNIEXPORT jlong JNICALL
 105 JVM_NanoTime(JNIEnv *env, jclass ignored);
 106 
 107 JNIEXPORT jlong JNICALL
 108 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);
 109 
 110 JNIEXPORT void JNICALL
 111 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
 112               jobject dst, jint dst_pos, jint length);
 113 
 114 /*
 115  * Return an array of all properties as alternating name and value pairs.
 116  */
 117 JNIEXPORT jobjectArray JNICALL
 118 JVM_GetProperties(JNIEnv *env);
 119 
 120 /*
 121  * java.lang.Runtime
 122  */
 123 JNIEXPORT void JNICALL
 124 JVM_BeforeHalt();
 125 
 126 JNIEXPORT void JNICALL
 127 JVM_Halt(jint code);
 128 
 129 JNIEXPORT void JNICALL
 130 JVM_GC(void);
 131 
 132 /* Returns the number of real-time milliseconds that have elapsed since the
 133  * least-recently-inspected heap object was last inspected by the garbage
 134  * collector.
 135  *
 136  * For simple stop-the-world collectors this value is just the time
 137  * since the most recent collection.  For generational collectors it is the
 138  * time since the oldest generation was most recently collected.  Other
 139  * collectors are free to return a pessimistic estimate of the elapsed time, or
 140  * simply the time since the last full collection was performed.
 141  *
 142  * Note that in the presence of reference objects, a given object that is no
 143  * longer strongly reachable may have to be inspected multiple times before it
 144  * can be reclaimed.
 145  */
 146 JNIEXPORT jlong JNICALL
 147 JVM_MaxObjectInspectionAge(void);
 148 
 149 JNIEXPORT jlong JNICALL
 150 JVM_TotalMemory(void);
 151 
 152 JNIEXPORT jlong JNICALL
 153 JVM_FreeMemory(void);
 154 
 155 JNIEXPORT jlong JNICALL
 156 JVM_MaxMemory(void);
 157 
 158 JNIEXPORT jint JNICALL
 159 JVM_ActiveProcessorCount(void);
 160 
 161 JNIEXPORT void * JNICALL
 162 JVM_LoadLibrary(const char *name);
 163 
 164 JNIEXPORT void JNICALL
 165 JVM_UnloadLibrary(void * handle);
 166 
 167 JNIEXPORT void * JNICALL
 168 JVM_FindLibraryEntry(void *handle, const char *name);
 169 
 170 JNIEXPORT jboolean JNICALL
 171 JVM_IsSupportedJNIVersion(jint version);
 172 
 173 JNIEXPORT jobjectArray JNICALL
 174 JVM_GetVmArguments(JNIEnv *env);
 175 
 176 JNIEXPORT void JNICALL
 177 JVM_InitializeFromArchive(JNIEnv* env, jclass cls);
 178 
 179 JNIEXPORT void JNICALL
 180 JVM_LinkClassesForCDS(JNIEnv *env);
 181 
 182 /*
 183  * java.lang.Throwable
 184  */
 185 JNIEXPORT void JNICALL
 186 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
 187 
 188 /*
 189  * java.lang.StackTraceElement
 190  */
 191 JNIEXPORT void JNICALL
 192 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);
 193 
 194 JNIEXPORT void JNICALL
 195 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
 196 
 197 /*
 198  * java.lang.NullPointerException
 199  */
 200 
 201 JNIEXPORT jstring JNICALL
 202 JVM_GetExtendedNPEMessage(JNIEnv *env, jthrowable throwable);
 203 
 204 /*
 205  * java.lang.StackWalker
 206  */
 207 enum {
 208   JVM_STACKWALK_FILL_CLASS_REFS_ONLY       = 0x2,
 209   JVM_STACKWALK_GET_CALLER_CLASS           = 0x04,
 210   JVM_STACKWALK_SHOW_HIDDEN_FRAMES         = 0x20,
 211   JVM_STACKWALK_FILL_LIVE_STACK_FRAMES     = 0x100
 212 };
 213 
 214 JNIEXPORT jobject JNICALL
 215 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
 216                   jint skip_frames, jint frame_count, jint start_index,
 217                   jobjectArray frames);
 218 
 219 JNIEXPORT jint JNICALL
 220 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
 221                   jint frame_count, jint start_index,
 222                   jobjectArray frames);
 223 
 224 /*
 225  * java.lang.Thread
 226  */
 227 JNIEXPORT void JNICALL
 228 JVM_StartThread(JNIEnv *env, jobject thread);
 229 
 230 JNIEXPORT void JNICALL
 231 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
 232 
 233 JNIEXPORT jboolean JNICALL
 234 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
 235 
 236 JNIEXPORT void JNICALL
 237 JVM_SuspendThread(JNIEnv *env, jobject thread);
 238 
 239 JNIEXPORT void JNICALL
 240 JVM_ResumeThread(JNIEnv *env, jobject thread);
 241 
 242 JNIEXPORT void JNICALL
 243 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
 244 
 245 JNIEXPORT void JNICALL
 246 JVM_Yield(JNIEnv *env, jclass threadClass);
 247 
 248 JNIEXPORT void JNICALL
 249 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
 250 
 251 JNIEXPORT jobject JNICALL
 252 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
 253 
 254 JNIEXPORT void JNICALL
 255 JVM_Interrupt(JNIEnv *env, jobject thread);
 256 
 257 JNIEXPORT jboolean JNICALL
 258 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
 259 
 260 JNIEXPORT void JNICALL
 261 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
 262 
 263 JNIEXPORT jobjectArray JNICALL
 264 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
 265 
 266 JNIEXPORT void JNICALL
 267 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
 268 
 269 /* getStackTrace() and getAllStackTraces() method */
 270 JNIEXPORT jobjectArray JNICALL
 271 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
 272 
 273 /*
 274  * java.lang.SecurityManager
 275  */
 276 JNIEXPORT jobjectArray JNICALL
 277 JVM_GetClassContext(JNIEnv *env);
 278 
 279 /*
 280  * java.lang.Package
 281  */
 282 JNIEXPORT jstring JNICALL
 283 JVM_GetSystemPackage(JNIEnv *env, jstring name);
 284 
 285 JNIEXPORT jobjectArray JNICALL
 286 JVM_GetSystemPackages(JNIEnv *env);
 287 
 288 /*
 289  * java.lang.ref.Reference
 290  */
 291 JNIEXPORT jobject JNICALL
 292 JVM_GetAndClearReferencePendingList(JNIEnv *env);
 293 
 294 JNIEXPORT jboolean JNICALL
 295 JVM_HasReferencePendingList(JNIEnv *env);
 296 
 297 JNIEXPORT void JNICALL
 298 JVM_WaitForReferencePendingList(JNIEnv *env);
 299 
 300 /*
 301  * java.io.ObjectInputStream
 302  */
 303 JNIEXPORT jobject JNICALL
 304 JVM_LatestUserDefinedLoader(JNIEnv *env);
 305 
 306 /*
 307  * java.lang.reflect.Array
 308  */
 309 JNIEXPORT jint JNICALL
 310 JVM_GetArrayLength(JNIEnv *env, jobject arr);
 311 
 312 JNIEXPORT jobject JNICALL
 313 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
 314 
 315 JNIEXPORT jvalue JNICALL
 316 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
 317 
 318 JNIEXPORT void JNICALL
 319 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
 320 
 321 JNIEXPORT void JNICALL
 322 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
 323                              unsigned char vCode);
 324 
 325 JNIEXPORT jobject JNICALL
 326 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
 327 
 328 JNIEXPORT jobject JNICALL
 329 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
 330 
 331 
 332 /*
 333  * Returns the immediate caller class of the native method invoking
 334  * JVM_GetCallerClass.  The Method.invoke and other frames due to
 335  * reflection machinery are skipped.
 336  *
 337  * The caller is expected to be marked with
 338  * jdk.internal.reflect.CallerSensitive. The JVM will throw an
 339  * error if it is not marked properly.
 340  */
 341 JNIEXPORT jclass JNICALL
 342 JVM_GetCallerClass(JNIEnv *env);
 343 
 344 
 345 /*
 346  * Find primitive classes
 347  * utf: class name
 348  */
 349 JNIEXPORT jclass JNICALL
 350 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
 351 
 352 
 353 /*
 354  * Find a class from a boot class loader. Returns NULL if class not found.
 355  */
 356 JNIEXPORT jclass JNICALL
 357 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
 358 
 359 /*
 360  * Find a class from a given class loader.  Throws ClassNotFoundException.
 361  *  name:   name of class
 362  *  init:   whether initialization is done
 363  *  loader: class loader to look up the class. This may not be the same as the caller's
 364  *          class loader.
 365  *  caller: initiating class. The initiating class may be null when a security
 366  *          manager is not installed.
 367  */
 368 JNIEXPORT jclass JNICALL
 369 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
 370                         jobject loader, jclass caller);
 371 
 372 /*
 373  * Find a class from a given class.
 374  */
 375 JNIEXPORT jclass JNICALL
 376 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
 377                              jclass from);
 378 
 379 /* Find a loaded class cached by the VM */
 380 JNIEXPORT jclass JNICALL
 381 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
 382 
 383 /* Define a class */
 384 JNIEXPORT jclass JNICALL
 385 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
 386                 jsize len, jobject pd);
 387 
 388 /* Define a class with a source (added in JDK1.5) */
 389 JNIEXPORT jclass JNICALL
 390 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
 391                           const jbyte *buf, jsize len, jobject pd,
 392                           const char *source);
 393 
 394 /*
 395  * Module support funcions
 396  */
 397 
 398 /*
 399  * Define a module with the specified packages and bind the module to the
 400  * given class loader.
 401  *  module:       module to define
 402  *  is_open:      specifies if module is open (currently ignored)
 403  *  version:      the module version
 404  *  location:     the module location
 405  *  packages:     list of packages in the module
 406  *  num_packages: number of packages in the module
 407  */
 408 JNIEXPORT void JNICALL
 409 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
 410                  jstring location, const char* const* packages, jsize num_packages);
 411 
 412 /*
 413  * Set the boot loader's unnamed module.
 414  *  module: boot loader's unnamed module
 415  */
 416 JNIEXPORT void JNICALL
 417 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
 418 
 419 /*
 420  * Do a qualified export of a package.
 421  *  from_module: module containing the package to export
 422  *  package:     name of the package to export
 423  *  to_module:   module to export the package to
 424  */
 425 JNIEXPORT void JNICALL
 426 JVM_AddModuleExports(JNIEnv *env, jobject from_module, const char* package, jobject to_module);
 427 
 428 /*
 429  * Do an export of a package to all unnamed modules.
 430  *  from_module: module containing the package to export
 431  *  package:     name of the package to export to all unnamed modules
 432  */
 433 JNIEXPORT void JNICALL
 434 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, const char* package);
 435 
 436 /*
 437  * Do an unqualified export of a package.
 438  *  from_module: module containing the package to export
 439  *  package:     name of the package to export
 440  */
 441 JNIEXPORT void JNICALL
 442 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, const char* package);
 443 
 444 /*
 445  * Add a module to the list of modules that a given module can read.
 446  *  from_module:   module requesting read access
 447  *  source_module: module that from_module wants to read
 448  */
 449 JNIEXPORT void JNICALL
 450 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
 451 
 452 /*
 453  * Reflection support functions
 454  */
 455 
 456 JNIEXPORT jstring JNICALL
 457 JVM_InitClassName(JNIEnv *env, jclass cls);
 458 
 459 JNIEXPORT jobjectArray JNICALL
 460 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
 461 
 462 JNIEXPORT jboolean JNICALL
 463 JVM_IsInterface(JNIEnv *env, jclass cls);
 464 
 465 JNIEXPORT jobjectArray JNICALL
 466 JVM_GetClassSigners(JNIEnv *env, jclass cls);
 467 
 468 JNIEXPORT void JNICALL
 469 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
 470 
 471 JNIEXPORT jobject JNICALL
 472 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
 473 
 474 JNIEXPORT jboolean JNICALL
 475 JVM_IsArrayClass(JNIEnv *env, jclass cls);
 476 
 477 JNIEXPORT jboolean JNICALL
 478 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
 479 
 480 JNIEXPORT jint JNICALL
 481 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
 482 
 483 JNIEXPORT jobjectArray JNICALL
 484 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
 485 
 486 JNIEXPORT jclass JNICALL
 487 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
 488 
 489 JNIEXPORT jstring JNICALL
 490 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
 491 
 492 /* Generics support (JDK 1.5) */
 493 JNIEXPORT jstring JNICALL
 494 JVM_GetClassSignature(JNIEnv *env, jclass cls);
 495 
 496 /* Annotations support (JDK 1.5) */
 497 JNIEXPORT jbyteArray JNICALL
 498 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
 499 
 500 /* Type use annotations support (JDK 1.8) */
 501 
 502 JNIEXPORT jbyteArray JNICALL
 503 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
 504 
 505 JNIEXPORT jbyteArray JNICALL
 506 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
 507 
 508 JNIEXPORT jbyteArray JNICALL
 509 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
 510 
 511 /*
 512  * New (JDK 1.4) reflection implementation
 513  */
 514 
 515 JNIEXPORT jobjectArray JNICALL
 516 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 517 
 518 JNIEXPORT jobjectArray JNICALL
 519 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 520 
 521 JNIEXPORT jobjectArray JNICALL
 522 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 523 
 524 
 525 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
 526    This returns the access flags for the class as specified in the
 527    class file rather than searching the InnerClasses attribute (if
 528    present) to find the source-level access flags. Only the values of
 529    the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
 530    valid. */
 531 JNIEXPORT jint JNICALL
 532 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
 533 
 534 /* Nestmates - since JDK 11 */
 535 
 536 JNIEXPORT jboolean JNICALL
 537 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member);
 538 
 539 JNIEXPORT jclass JNICALL
 540 JVM_GetNestHost(JNIEnv *env, jclass current);
 541 
 542 JNIEXPORT jobjectArray JNICALL
 543 JVM_GetNestMembers(JNIEnv *env, jclass current);
 544 
 545 /* Records - since JDK 14 */
 546 
 547 JNIEXPORT jboolean JNICALL
 548 JVM_IsRecord(JNIEnv *env, jclass cls);
 549 
 550 JNIEXPORT jobjectArray JNICALL
 551 JVM_GetRecordComponents(JNIEnv *env, jclass ofClass);
 552 
 553 /* The following two reflection routines are still needed due to startup time issues */
 554 /*
 555  * java.lang.reflect.Method
 556  */
 557 JNIEXPORT jobject JNICALL
 558 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
 559 
 560 /*
 561  * java.lang.reflect.Constructor
 562  */
 563 JNIEXPORT jobject JNICALL
 564 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
 565 
 566 /*
 567  * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
 568  */
 569 
 570 JNIEXPORT jobject JNICALL
 571 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
 572 
 573 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
 574 (JNIEnv *env, jobject unused, jobject jcpool);
 575 
 576 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
 577 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 578 
 579 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
 580 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 581 
 582 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
 583 (JNIEnv *env, jobject obj, jobject unused, jint index);
 584 
 585 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
 586 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 587 
 588 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
 589 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 590 
 591 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
 592 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 593 
 594 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
 595 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 596 
 597 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
 598 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 599 
 600 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
 601 (JNIEnv *env, jobject obj, jobject unused, jint index);
 602 
 603 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
 604 (JNIEnv *env, jobject obj, jobject unused, jint index);
 605 
 606 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
 607 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 608 
 609 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
 610 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 611 
 612 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
 613 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 614 
 615 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
 616 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 617 
 618 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
 619 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 620 
 621 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
 622 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 623 
 624 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
 625 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 626 
 627 /*
 628  * Parameter reflection
 629  */
 630 
 631 JNIEXPORT jobjectArray JNICALL
 632 JVM_GetMethodParameters(JNIEnv *env, jobject method);
 633 
 634 /*
 635  * java.security.*
 636  */
 637 
 638 JNIEXPORT jobject JNICALL
 639 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
 640 
 641 /*
 642  * Ensure that code doing a stackwalk and using javaVFrame::locals() to
 643  * get the value will see a materialized value and not a scalar-replaced
 644  * null value.
 645  */
 646 #define JVM_EnsureMaterializedForStackWalk(env, value) \
 647     do {} while(0) // Nothing to do.  The fact that the value escaped
 648                    // through a native method is enough.
 649 
 650 JNIEXPORT jobject JNICALL
 651 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
 652 
 653 /*
 654  * Signal support, used to implement the shutdown sequence.  Every VM must
 655  * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
 656  * (^C) and the latter for external termination (kill, system shutdown, etc.).
 657  * Other platform-dependent signal values may also be supported.
 658  */
 659 
 660 JNIEXPORT void * JNICALL
 661 JVM_RegisterSignal(jint sig, void *handler);
 662 
 663 JNIEXPORT jboolean JNICALL
 664 JVM_RaiseSignal(jint sig);
 665 
 666 JNIEXPORT jint JNICALL
 667 JVM_FindSignal(const char *name);
 668 
 669 /*
 670  * Retrieve the assertion directives for the specified class.
 671  */
 672 JNIEXPORT jboolean JNICALL
 673 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
 674 
 675 /*
 676  * Retrieve the assertion directives from the VM.
 677  */
 678 JNIEXPORT jobject JNICALL
 679 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
 680 
 681 /*
 682  * java.util.concurrent.atomic.AtomicLong
 683  */
 684 JNIEXPORT jboolean JNICALL
 685 JVM_SupportsCX8(void);
 686 
 687 /*
 688  * com.sun.dtrace.jsdt support
 689  */
 690 
 691 #define JVM_TRACING_DTRACE_VERSION 1
 692 
 693 /*
 694  * Structure to pass one probe description to JVM
 695  */
 696 typedef struct {
 697     jmethodID method;
 698     jstring   function;
 699     jstring   name;
 700     void*            reserved[4];     // for future use
 701 } JVM_DTraceProbe;
 702 
 703 /**
 704  * Encapsulates the stability ratings for a DTrace provider field
 705  */
 706 typedef struct {
 707     jint nameStability;
 708     jint dataStability;
 709     jint dependencyClass;
 710 } JVM_DTraceInterfaceAttributes;
 711 
 712 /*
 713  * Structure to pass one provider description to JVM
 714  */
 715 typedef struct {
 716     jstring                       name;
 717     JVM_DTraceProbe*              probes;
 718     jint                          probe_count;
 719     JVM_DTraceInterfaceAttributes providerAttributes;
 720     JVM_DTraceInterfaceAttributes moduleAttributes;
 721     JVM_DTraceInterfaceAttributes functionAttributes;
 722     JVM_DTraceInterfaceAttributes nameAttributes;
 723     JVM_DTraceInterfaceAttributes argsAttributes;
 724     void*                         reserved[4]; // for future use
 725 } JVM_DTraceProvider;
 726 
 727 /*
 728  * Get the version number the JVM was built with
 729  */
 730 JNIEXPORT jint JNICALL
 731 JVM_DTraceGetVersion(JNIEnv* env);
 732 
 733 /*
 734  * Register new probe with given signature, return global handle
 735  *
 736  * The version passed in is the version that the library code was
 737  * built with.
 738  */
 739 JNIEXPORT jlong JNICALL
 740 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
 741   jint providers_count, JVM_DTraceProvider* providers);
 742 
 743 /*
 744  * Check JSDT probe
 745  */
 746 JNIEXPORT jboolean JNICALL
 747 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
 748 
 749 /*
 750  * Destroy custom DOF
 751  */
 752 JNIEXPORT void JNICALL
 753 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
 754 
 755 /*
 756  * Check to see if DTrace is supported by OS
 757  */
 758 JNIEXPORT jboolean JNICALL
 759 JVM_DTraceIsSupported(JNIEnv* env);
 760 
 761 /*************************************************************************
 762  PART 2: Support for the Verifier and Class File Format Checker
 763  ************************************************************************/
 764 /*
 765  * Return the class name in UTF format. The result is valid
 766  * until JVM_ReleaseUTf is called.
 767  *
 768  * The caller must treat the string as a constant and not modify it
 769  * in any way.
 770  */
 771 JNIEXPORT const char * JNICALL
 772 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
 773 
 774 /*
 775  * Returns the constant pool types in the buffer provided by "types."
 776  */
 777 JNIEXPORT void JNICALL
 778 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
 779 
 780 /*
 781  * Returns the number of Constant Pool entries.
 782  */
 783 JNIEXPORT jint JNICALL
 784 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
 785 
 786 /*
 787  * Returns the number of *declared* fields or methods.
 788  */
 789 JNIEXPORT jint JNICALL
 790 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
 791 
 792 JNIEXPORT jint JNICALL
 793 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
 794 
 795 /*
 796  * Returns the CP indexes of exceptions raised by a given method.
 797  * Places the result in the given buffer.
 798  *
 799  * The method is identified by method_index.
 800  */
 801 JNIEXPORT void JNICALL
 802 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
 803                                 unsigned short *exceptions);
 804 /*
 805  * Returns the number of exceptions raised by a given method.
 806  * The method is identified by method_index.
 807  */
 808 JNIEXPORT jint JNICALL
 809 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
 810 
 811 /*
 812  * Returns the byte code sequence of a given method.
 813  * Places the result in the given buffer.
 814  *
 815  * The method is identified by method_index.
 816  */
 817 JNIEXPORT void JNICALL
 818 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
 819                         unsigned char *code);
 820 
 821 /*
 822  * Returns the length of the byte code sequence of a given method.
 823  * The method is identified by method_index.
 824  */
 825 JNIEXPORT jint JNICALL
 826 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
 827 
 828 /*
 829  * A structure used to a capture exception table entry in a Java method.
 830  */
 831 typedef struct {
 832     jint start_pc;
 833     jint end_pc;
 834     jint handler_pc;
 835     jint catchType;
 836 } JVM_ExceptionTableEntryType;
 837 
 838 /*
 839  * Returns the exception table entry at entry_index of a given method.
 840  * Places the result in the given buffer.
 841  *
 842  * The method is identified by method_index.
 843  */
 844 JNIEXPORT void JNICALL
 845 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
 846                                    jint entry_index,
 847                                    JVM_ExceptionTableEntryType *entry);
 848 
 849 /*
 850  * Returns the length of the exception table of a given method.
 851  * The method is identified by method_index.
 852  */
 853 JNIEXPORT jint JNICALL
 854 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
 855 
 856 /*
 857  * Returns the modifiers of a given field.
 858  * The field is identified by field_index.
 859  */
 860 JNIEXPORT jint JNICALL
 861 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
 862 
 863 /*
 864  * Returns the modifiers of a given method.
 865  * The method is identified by method_index.
 866  */
 867 JNIEXPORT jint JNICALL
 868 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
 869 
 870 /*
 871  * Returns the number of local variables of a given method.
 872  * The method is identified by method_index.
 873  */
 874 JNIEXPORT jint JNICALL
 875 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
 876 
 877 /*
 878  * Returns the number of arguments (including this pointer) of a given method.
 879  * The method is identified by method_index.
 880  */
 881 JNIEXPORT jint JNICALL
 882 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
 883 
 884 /*
 885  * Returns the maximum amount of stack (in words) used by a given method.
 886  * The method is identified by method_index.
 887  */
 888 JNIEXPORT jint JNICALL
 889 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
 890 
 891 /*
 892  * Is a given method a constructor.
 893  * The method is identified by method_index.
 894  */
 895 JNIEXPORT jboolean JNICALL
 896 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
 897 
 898 /*
 899  * Is the given method generated by the VM.
 900  * The method is identified by method_index.
 901  */
 902 JNIEXPORT jboolean JNICALL
 903 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
 904 
 905 /*
 906  * Returns the name of a given method in UTF format.
 907  * The result remains valid until JVM_ReleaseUTF is called.
 908  *
 909  * The caller must treat the string as a constant and not modify it
 910  * in any way.
 911  */
 912 JNIEXPORT const char * JNICALL
 913 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
 914 
 915 /*
 916  * Returns the signature of a given method in UTF format.
 917  * The result remains valid until JVM_ReleaseUTF 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_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
 924 
 925 /*
 926  * Returns the name of the field 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_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
 937 
 938 /*
 939  * Returns the name 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_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
 950 
 951 /*
 952  * Returns the signature of the method 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_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
 963 
 964 /*
 965  * Returns the signature of the field referred to at a given constant pool
 966  * index.
 967  *
 968  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 969  * is called.
 970  *
 971  * The caller must treat the string as a constant and not modify it
 972  * in any way.
 973  */
 974 JNIEXPORT const char * JNICALL
 975 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
 976 
 977 /*
 978  * Returns the class name referred to at a given constant pool index.
 979  *
 980  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 981  * is called.
 982  *
 983  * The caller must treat the string as a constant and not modify it
 984  * in any way.
 985  */
 986 JNIEXPORT const char * JNICALL
 987 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
 988 
 989 /*
 990  * Returns the class name referred to at a given constant pool index.
 991  *
 992  * The constant pool entry must refer to a CONSTANT_Fieldref.
 993  *
 994  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 995  * is called.
 996  *
 997  * The caller must treat the string as a constant and not modify it
 998  * in any way.
 999  */
1000 JNIEXPORT const char * JNICALL
1001 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
1002 
1003 /*
1004  * Returns the class name referred to at a given constant pool index.
1005  *
1006  * The constant pool entry must refer to CONSTANT_Methodref or
1007  * CONSTANT_InterfaceMethodref.
1008  *
1009  * The result is in UTF format and remains valid until JVM_ReleaseUTF
1010  * is called.
1011  *
1012  * The caller must treat the string as a constant and not modify it
1013  * in any way.
1014  */
1015 JNIEXPORT const char * JNICALL
1016 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1017 
1018 /*
1019  * Returns the modifiers of a field in calledClass. The field is
1020  * referred to in class cb at constant pool entry index.
1021  *
1022  * The caller must treat the string as a constant and not modify it
1023  * in any way.
1024  *
1025  * Returns -1 if the field does not exist in calledClass.
1026  */
1027 JNIEXPORT jint JNICALL
1028 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1029 
1030 /*
1031  * Returns the modifiers of a method in calledClass. The method is
1032  * referred to in class cb at constant pool entry index.
1033  *
1034  * Returns -1 if the method does not exist in calledClass.
1035  */
1036 JNIEXPORT jint JNICALL
1037 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1038 
1039 /*
1040  * Releases the UTF string obtained from the VM.
1041  */
1042 JNIEXPORT void JNICALL
1043 JVM_ReleaseUTF(const char *utf);
1044 
1045 /*
1046  * Compare if two classes are in the same package.
1047  */
1048 JNIEXPORT jboolean JNICALL
1049 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1050 
1051 /* Get classfile constants */
1052 #include "classfile_constants.h"
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 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1078                                         JVM_ACC_FINAL | \
1079                                         JVM_ACC_SUPER | \
1080                                         JVM_ACC_INTERFACE | \
1081                                         JVM_ACC_ABSTRACT | \
1082                                         JVM_ACC_ANNOTATION | \
1083                                         JVM_ACC_ENUM | \
1084                                         JVM_ACC_SYNTHETIC)
1085 
1086 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1087                                         JVM_ACC_PRIVATE | \
1088                                         JVM_ACC_PROTECTED | \
1089                                         JVM_ACC_STATIC | \
1090                                         JVM_ACC_FINAL | \
1091                                         JVM_ACC_VOLATILE | \
1092                                         JVM_ACC_TRANSIENT | \
1093                                         JVM_ACC_ENUM | \
1094                                         JVM_ACC_SYNTHETIC)
1095 
1096 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1097                                          JVM_ACC_PRIVATE | \
1098                                          JVM_ACC_PROTECTED | \
1099                                          JVM_ACC_STATIC | \
1100                                          JVM_ACC_FINAL | \
1101                                          JVM_ACC_SYNCHRONIZED | \
1102                                          JVM_ACC_BRIDGE | \
1103                                          JVM_ACC_VARARGS | \
1104                                          JVM_ACC_NATIVE | \
1105                                          JVM_ACC_ABSTRACT | \
1106                                          JVM_ACC_STRICT | \
1107                                          JVM_ACC_SYNTHETIC)
1108 
1109 
1110 /*************************************************************************
1111  PART 3: I/O and Network Support
1112  ************************************************************************/
1113 
1114 /*
1115  * Convert a pathname into native format.  This function does syntactic
1116  * cleanup, such as removing redundant separator characters.  It modifies
1117  * the given pathname string in place.
1118  */
1119 JNIEXPORT char * JNICALL
1120 JVM_NativePath(char *);
1121 
1122 /*
1123  * The standard printing functions supported by the Java VM. (Should they
1124  * be renamed to JVM_* in the future?
1125  */
1126 
1127 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1128  *  respectively, with the following differences:
1129  * - The string written to str is always zero-terminated, also in case of
1130  *   truncation (count is too small to hold the result string), unless count
1131  *   is 0. In case of truncation count-1 characters are written and '\0'
1132  *   appendend.
1133  * - If count is too small to hold the whole string, -1 is returned across
1134  *   all platforms. */
1135 
1136 JNIEXPORT int
1137 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1138 
1139 JNIEXPORT int
1140 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1141 
1142 JNIEXPORT int
1143 jio_fprintf(FILE *, const char *fmt, ...);
1144 
1145 JNIEXPORT int
1146 jio_vfprintf(FILE *, const char *fmt, va_list args);
1147 
1148 
1149 JNIEXPORT void * JNICALL
1150 JVM_RawMonitorCreate(void);
1151 
1152 JNIEXPORT void JNICALL
1153 JVM_RawMonitorDestroy(void *mon);
1154 
1155 JNIEXPORT jint JNICALL
1156 JVM_RawMonitorEnter(void *mon);
1157 
1158 JNIEXPORT void JNICALL
1159 JVM_RawMonitorExit(void *mon);
1160 
1161 /*
1162  * java.lang.management support
1163  */
1164 JNIEXPORT void* JNICALL
1165 JVM_GetManagement(jint version);
1166 
1167 /*
1168  * com.sun.tools.attach.VirtualMachine support
1169  *
1170  * Initialize the agent properties with the properties maintained in the VM.
1171  */
1172 JNIEXPORT jobject JNICALL
1173 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1174 
1175 JNIEXPORT jstring JNICALL
1176 JVM_GetTemporaryDirectory(JNIEnv *env);
1177 
1178 /* Generics reflection support.
1179  *
1180  * Returns information about the given class's EnclosingMethod
1181  * attribute, if present, or null if the class had no enclosing
1182  * method.
1183  *
1184  * If non-null, the returned array contains three elements. Element 0
1185  * is the java.lang.Class of which the enclosing method is a member,
1186  * and elements 1 and 2 are the java.lang.Strings for the enclosing
1187  * method's name and descriptor, respectively.
1188  */
1189 JNIEXPORT jobjectArray JNICALL
1190 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1191 
1192 /*
1193  * This structure is used by the launcher to get the default thread
1194  * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1195  * version of 1.1.  As it is not supported otherwise, it has been removed
1196  * from jni.h
1197  */
1198 typedef struct JDK1_1InitArgs {
1199     jint version;
1200 
1201     char **properties;
1202     jint checkSource;
1203     jint nativeStackSize;
1204     jint javaStackSize;
1205     jint minHeapSize;
1206     jint maxHeapSize;
1207     jint verifyMode;
1208     char *classpath;
1209 
1210     jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1211     void (JNICALL *exit)(jint code);
1212     void (JNICALL *abort)(void);
1213 
1214     jint enableClassGC;
1215     jint enableVerboseGC;
1216     jint disableAsyncGC;
1217     jint verbose;
1218     jboolean debugging;
1219     jint debugPort;
1220 } JDK1_1InitArgs;
1221 
1222 
1223 #ifdef __cplusplus
1224 } /* extern "C" */
1225 
1226 #endif /* __cplusplus */
1227 
1228 #endif /* !_JAVASOFT_JVM_H_ */
--- EOF ---