1 /*
   2  * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #ifndef _JAVASOFT_JVM_H_
  27 #define _JAVASOFT_JVM_H_
  28 
  29 #include <sys/stat.h>
  30 
  31 #include "jni.h"
  32 #include "jvm_md.h"
  33 
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37 
  38 /*
  39  * This file contains additional functions exported from the VM.
  40  * These functions are complementary to the standard JNI support.
  41  * There are three parts to this file:
  42  *
  43  * First, this file contains the VM-related functions needed by native
  44  * libraries in the standard Java API. For example, the java.lang.Object
  45  * class needs VM-level functions that wait for and notify monitors.
  46  *
  47  * Second, this file contains the functions and constant definitions
  48  * needed by the byte code verifier and class file format checker.
  49  * These functions allow the verifier and format checker to be written
  50  * in a VM-independent way.
  51  *
  52  * Third, this file contains various I/O and network operations needed
  53  * by the standard Java I/O and network APIs.
  54  */
  55 
  56 /*
  57  * Bump the version number when either of the following happens:
  58  *
  59  * 1. There is a change in JVM_* functions.
  60  *
  61  * 2. There is a change in the contract between VM and Java classes.
  62  *    For example, if the VM relies on a new private field in Thread
  63  *    class.
  64  */
  65 
  66 #define JVM_INTERFACE_VERSION 6
  67 
  68 JNIEXPORT jint JNICALL
  69 JVM_GetInterfaceVersion(void);
  70 
  71 /*************************************************************************
  72  PART 1: Functions for Native Libraries
  73  ************************************************************************/
  74 /*
  75  * java.lang.Object
  76  */
  77 JNIEXPORT jint JNICALL
  78 JVM_IHashCode(JNIEnv *env, jobject obj);
  79 
  80 JNIEXPORT void JNICALL
  81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
  82 
  83 JNIEXPORT void JNICALL
  84 JVM_MonitorNotify(JNIEnv *env, jobject obj);
  85 
  86 JNIEXPORT void JNICALL
  87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
  88 
  89 JNIEXPORT jobject JNICALL
  90 JVM_Clone(JNIEnv *env, jobject obj);
  91 
  92 /*
  93  * java.lang.String
  94  */
  95 JNIEXPORT jstring JNICALL
  96 JVM_InternString(JNIEnv *env, jstring str);
  97 
  98 /*
  99  * java.lang.System
 100  */
 101 JNIEXPORT jlong JNICALL
 102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
 103 
 104 JNIEXPORT jlong JNICALL
 105 JVM_NanoTime(JNIEnv *env, jclass ignored);
 106 
 107 JNIEXPORT jlong JNICALL
 108 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);
 109 
 110 JNIEXPORT void JNICALL
 111 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
 112               jobject dst, jint dst_pos, jint length);
 113 
 114 /*
 115  * Return an array of all properties as alternating name and value pairs.
 116  */
 117 JNIEXPORT jobjectArray JNICALL
 118 JVM_GetProperties(JNIEnv *env);
 119 
 120 /*
 121  * java.lang.Runtime
 122  */
 123 JNIEXPORT void JNICALL
 124 JVM_BeforeHalt();
 125 
 126 JNIEXPORT void JNICALL
 127 JVM_Halt(jint code);
 128 
 129 JNIEXPORT void JNICALL
 130 JVM_GC(void);
 131 
 132 /* Returns the number of real-time milliseconds that have elapsed since the
 133  * least-recently-inspected heap object was last inspected by the garbage
 134  * collector.
 135  *
 136  * For simple stop-the-world collectors this value is just the time
 137  * since the most recent collection.  For generational collectors it is the
 138  * time since the oldest generation was most recently collected.  Other
 139  * collectors are free to return a pessimistic estimate of the elapsed time, or
 140  * simply the time since the last full collection was performed.
 141  *
 142  * Note that in the presence of reference objects, a given object that is no
 143  * longer strongly reachable may have to be inspected multiple times before it
 144  * can be reclaimed.
 145  */
 146 JNIEXPORT jlong JNICALL
 147 JVM_MaxObjectInspectionAge(void);
 148 
 149 JNIEXPORT jlong JNICALL
 150 JVM_TotalMemory(void);
 151 
 152 JNIEXPORT jlong JNICALL
 153 JVM_FreeMemory(void);
 154 
 155 JNIEXPORT jlong JNICALL
 156 JVM_MaxMemory(void);
 157 
 158 JNIEXPORT jint JNICALL
 159 JVM_ActiveProcessorCount(void);
 160 
 161 JNIEXPORT void * JNICALL
 162 JVM_LoadLibrary(const char *name);
 163 
 164 JNIEXPORT void JNICALL
 165 JVM_UnloadLibrary(void * handle);
 166 
 167 JNIEXPORT void * JNICALL
 168 JVM_FindLibraryEntry(void *handle, const char *name);
 169 
 170 JNIEXPORT jboolean JNICALL
 171 JVM_IsSupportedJNIVersion(jint version);
 172 
 173 JNIEXPORT jobjectArray JNICALL
 174 JVM_GetVmArguments(JNIEnv *env);
 175 
 176 JNIEXPORT void JNICALL
 177 JVM_InitializeFromArchive(JNIEnv* env, jclass cls);
 178 
 179 /*
 180  * java.lang.Throwable
 181  */
 182 JNIEXPORT void JNICALL
 183 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
 184 
 185 /*
 186  * java.lang.StackTraceElement
 187  */
 188 JNIEXPORT void JNICALL
 189 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);
 190 
 191 JNIEXPORT void JNICALL
 192 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
 193 
 194 /*
 195  * java.lang.NullPointerException
 196  */
 197 
 198 JNIEXPORT jstring JNICALL
 199 JVM_GetExtendedNPEMessage(JNIEnv *env, jthrowable throwable);
 200 
 201 /*
 202  * java.lang.StackWalker
 203  */
 204 enum {
 205   JVM_STACKWALK_FILL_CLASS_REFS_ONLY       = 0x2,
 206   JVM_STACKWALK_GET_CALLER_CLASS           = 0x04,
 207   JVM_STACKWALK_SHOW_HIDDEN_FRAMES         = 0x20,
 208   JVM_STACKWALK_FILL_LIVE_STACK_FRAMES     = 0x100
 209 };
 210 
 211 JNIEXPORT jobject JNICALL
 212 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
 213                   jint skip_frames, jint frame_count, jint start_index,
 214                   jobjectArray frames);
 215 
 216 JNIEXPORT jint JNICALL
 217 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
 218                   jint frame_count, jint start_index,
 219                   jobjectArray frames);
 220 
 221 /*
 222  * java.lang.Thread
 223  */
 224 JNIEXPORT void JNICALL
 225 JVM_StartThread(JNIEnv *env, jobject thread);
 226 
 227 JNIEXPORT void JNICALL
 228 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
 229 
 230 JNIEXPORT jboolean JNICALL
 231 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
 232 
 233 JNIEXPORT void JNICALL
 234 JVM_SuspendThread(JNIEnv *env, jobject thread);
 235 
 236 JNIEXPORT void JNICALL
 237 JVM_ResumeThread(JNIEnv *env, jobject thread);
 238 
 239 JNIEXPORT void JNICALL
 240 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
 241 
 242 JNIEXPORT void JNICALL
 243 JVM_Yield(JNIEnv *env, jclass threadClass);
 244 
 245 JNIEXPORT void JNICALL
 246 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
 247 
 248 JNIEXPORT jobject JNICALL
 249 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
 250 
 251 JNIEXPORT void JNICALL
 252 JVM_Interrupt(JNIEnv *env, jobject thread);
 253 
 254 JNIEXPORT jboolean JNICALL
 255 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
 256 
 257 JNIEXPORT void JNICALL
 258 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
 259 
 260 JNIEXPORT jobjectArray JNICALL
 261 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
 262 
 263 JNIEXPORT void JNICALL
 264 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
 265 
 266 /* getStackTrace() and getAllStackTraces() method */
 267 JNIEXPORT jobjectArray JNICALL
 268 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
 269 
 270 /*
 271  * java.lang.SecurityManager
 272  */
 273 JNIEXPORT jobjectArray JNICALL
 274 JVM_GetClassContext(JNIEnv *env);
 275 
 276 /*
 277  * java.lang.Package
 278  */
 279 JNIEXPORT jstring JNICALL
 280 JVM_GetSystemPackage(JNIEnv *env, jstring name);
 281 
 282 JNIEXPORT jobjectArray JNICALL
 283 JVM_GetSystemPackages(JNIEnv *env);
 284 
 285 /*
 286  * java.lang.ref.Reference
 287  */
 288 JNIEXPORT jobject JNICALL
 289 JVM_GetAndClearReferencePendingList(JNIEnv *env);
 290 
 291 JNIEXPORT jboolean JNICALL
 292 JVM_HasReferencePendingList(JNIEnv *env);
 293 
 294 JNIEXPORT void JNICALL
 295 JVM_WaitForReferencePendingList(JNIEnv *env);
 296 
 297 /*
 298  * java.io.ObjectInputStream
 299  */
 300 JNIEXPORT jobject JNICALL
 301 JVM_LatestUserDefinedLoader(JNIEnv *env);
 302 
 303 /*
 304  * java.lang.reflect.Array
 305  */
 306 JNIEXPORT jint JNICALL
 307 JVM_GetArrayLength(JNIEnv *env, jobject arr);
 308 
 309 JNIEXPORT jobject JNICALL
 310 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
 311 
 312 JNIEXPORT jvalue JNICALL
 313 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
 314 
 315 JNIEXPORT void JNICALL
 316 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
 317 
 318 JNIEXPORT void JNICALL
 319 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
 320                              unsigned char vCode);
 321 
 322 JNIEXPORT jobject JNICALL
 323 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
 324 
 325 JNIEXPORT jobject JNICALL
 326 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
 327 
 328 
 329 /*
 330  * Returns the immediate caller class of the native method invoking
 331  * JVM_GetCallerClass.  The Method.invoke and other frames due to
 332  * reflection machinery are skipped.
 333  *
 334  * The caller is expected to be marked with
 335  * jdk.internal.reflect.CallerSensitive. The JVM will throw an
 336  * error if it is not marked properly.
 337  */
 338 JNIEXPORT jclass JNICALL
 339 JVM_GetCallerClass(JNIEnv *env);
 340 
 341 
 342 /*
 343  * Find primitive classes
 344  * utf: class name
 345  */
 346 JNIEXPORT jclass JNICALL
 347 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
 348 
 349 
 350 /*
 351  * Find a class from a boot class loader. Returns NULL if class not found.
 352  */
 353 JNIEXPORT jclass JNICALL
 354 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
 355 
 356 /*
 357  * Find a class from a given class loader.  Throws ClassNotFoundException.
 358  *  name:   name of class
 359  *  init:   whether initialization is done
 360  *  loader: class loader to look up the class. This may not be the same as the caller's
 361  *          class loader.
 362  *  caller: initiating class. The initiating class may be null when a security
 363  *          manager is not installed.
 364  */
 365 JNIEXPORT jclass JNICALL
 366 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
 367                         jobject loader, jclass caller);
 368 
 369 /*
 370  * Find a class from a given class.
 371  */
 372 JNIEXPORT jclass JNICALL
 373 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
 374                              jclass from);
 375 
 376 /* Find a loaded class cached by the VM */
 377 JNIEXPORT jclass JNICALL
 378 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
 379 
 380 /* Define a class */
 381 JNIEXPORT jclass JNICALL
 382 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
 383                 jsize len, jobject pd);
 384 
 385 /* Define a class with a source (added in JDK1.5) */
 386 JNIEXPORT jclass JNICALL
 387 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
 388                           const jbyte *buf, jsize len, jobject pd,
 389                           const char *source);
 390 
 391 /*
 392  * Module support funcions
 393  */
 394 
 395 /*
 396  * Define a module with the specified packages and bind the module to the
 397  * given class loader.
 398  *  module:       module to define
 399  *  is_open:      specifies if module is open (currently ignored)
 400  *  version:      the module version
 401  *  location:     the module location
 402  *  packages:     array of packages in the module
 403  */
 404 JNIEXPORT void JNICALL
 405 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
 406                  jstring location, jobjectArray packages);
 407 
 408 /*
 409  * Set the boot loader's unnamed module.
 410  *  module: boot loader's unnamed module
 411  */
 412 JNIEXPORT void JNICALL
 413 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
 414 
 415 /*
 416  * Do a qualified export of a package.
 417  *  from_module: module containing the package to export
 418  *  package:     name of the package to export
 419  *  to_module:   module to export the package to
 420  */
 421 JNIEXPORT void JNICALL
 422 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
 423 
 424 /*
 425  * Do an export of a package to all unnamed modules.
 426  *  from_module: module containing the package to export
 427  *  package:     name of the package to export to all unnamed modules
 428  */
 429 JNIEXPORT void JNICALL
 430 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
 431 
 432 /*
 433  * Do an unqualified export of a package.
 434  *  from_module: module containing the package to export
 435  *  package:     name of the package to export
 436  */
 437 JNIEXPORT void JNICALL
 438 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
 439 
 440 /*
 441  * Add a module to the list of modules that a given module can read.
 442  *  from_module:   module requesting read access
 443  *  source_module: module that from_module wants to read
 444  */
 445 JNIEXPORT void JNICALL
 446 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
 447 
 448 /*
 449  * Reflection support functions
 450  */
 451 
 452 JNIEXPORT jstring JNICALL
 453 JVM_InitClassName(JNIEnv *env, jclass cls);
 454 
 455 JNIEXPORT jobjectArray JNICALL
 456 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
 457 
 458 JNIEXPORT jboolean JNICALL
 459 JVM_IsInterface(JNIEnv *env, jclass cls);
 460 
 461 JNIEXPORT jobjectArray JNICALL
 462 JVM_GetClassSigners(JNIEnv *env, jclass cls);
 463 
 464 JNIEXPORT void JNICALL
 465 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
 466 
 467 JNIEXPORT jobject JNICALL
 468 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
 469 
 470 JNIEXPORT jboolean JNICALL
 471 JVM_IsArrayClass(JNIEnv *env, jclass cls);
 472 
 473 JNIEXPORT jboolean JNICALL
 474 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
 475 
 476 JNIEXPORT jint JNICALL
 477 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
 478 
 479 JNIEXPORT jobjectArray JNICALL
 480 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
 481 
 482 JNIEXPORT jclass JNICALL
 483 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
 484 
 485 JNIEXPORT jstring JNICALL
 486 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
 487 
 488 /* Generics support (JDK 1.5) */
 489 JNIEXPORT jstring JNICALL
 490 JVM_GetClassSignature(JNIEnv *env, jclass cls);
 491 
 492 /* Annotations support (JDK 1.5) */
 493 JNIEXPORT jbyteArray JNICALL
 494 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
 495 
 496 /* Type use annotations support (JDK 1.8) */
 497 
 498 JNIEXPORT jbyteArray JNICALL
 499 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
 500 
 501 JNIEXPORT jbyteArray JNICALL
 502 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
 503 
 504 JNIEXPORT jbyteArray JNICALL
 505 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
 506 
 507 /*
 508  * New (JDK 1.4) reflection implementation
 509  */
 510 
 511 JNIEXPORT jobjectArray JNICALL
 512 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 513 
 514 JNIEXPORT jobjectArray JNICALL
 515 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 516 
 517 JNIEXPORT jobjectArray JNICALL
 518 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 519 
 520 
 521 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
 522    This returns the access flags for the class as specified in the
 523    class file rather than searching the InnerClasses attribute (if
 524    present) to find the source-level access flags. Only the values of
 525    the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
 526    valid. */
 527 JNIEXPORT jint JNICALL
 528 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
 529 
 530 /* Nestmates - since JDK 11 */
 531 
 532 JNIEXPORT jboolean JNICALL
 533 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member);
 534 
 535 JNIEXPORT jclass JNICALL
 536 JVM_GetNestHost(JNIEnv *env, jclass current);
 537 
 538 JNIEXPORT jobjectArray JNICALL
 539 JVM_GetNestMembers(JNIEnv *env, jclass current);
 540 
 541 /* Records - since JDK 14 */
 542 
 543 JNIEXPORT jboolean JNICALL
 544 JVM_IsRecord(JNIEnv *env, jclass cls);
 545 
 546 JNIEXPORT jobjectArray JNICALL
 547 JVM_GetRecordComponents(JNIEnv *env, jclass ofClass);
 548 
 549 /* The following two reflection routines are still needed due to startup time issues */
 550 /*
 551  * java.lang.reflect.Method
 552  */
 553 JNIEXPORT jobject JNICALL
 554 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
 555 
 556 /*
 557  * java.lang.reflect.Constructor
 558  */
 559 JNIEXPORT jobject JNICALL
 560 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
 561 
 562 /*
 563  * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
 564  */
 565 
 566 JNIEXPORT jobject JNICALL
 567 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
 568 
 569 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
 570 (JNIEnv *env, jobject unused, jobject jcpool);
 571 
 572 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
 573 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 574 
 575 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
 576 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 577 
 578 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
 579 (JNIEnv *env, jobject obj, jobject unused, jint index);
 580 
 581 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
 582 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 583 
 584 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
 585 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 586 
 587 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
 588 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 589 
 590 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
 591 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 592 
 593 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
 594 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 595 
 596 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
 597 (JNIEnv *env, jobject obj, jobject unused, jint index);
 598 
 599 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
 600 (JNIEnv *env, jobject obj, jobject unused, jint index);
 601 
 602 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
 603 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 604 
 605 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
 606 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 607 
 608 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
 609 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 610 
 611 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
 612 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 613 
 614 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
 615 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 616 
 617 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
 618 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 619 
 620 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
 621 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 622 
 623 /*
 624  * Parameter reflection
 625  */
 626 
 627 JNIEXPORT jobjectArray JNICALL
 628 JVM_GetMethodParameters(JNIEnv *env, jobject method);
 629 
 630 /*
 631  * java.security.*
 632  */
 633 
 634 JNIEXPORT jobject JNICALL
 635 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
 636 
 637 /*
 638  * Ensure that code doing a stackwalk and using javaVFrame::locals() to
 639  * get the value will see a materialized value and not a scalar-replaced
 640  * null value.
 641  */
 642 #define JVM_EnsureMaterializedForStackWalk(env, value) \
 643     do {} while(0) // Nothing to do.  The fact that the value escaped
 644                    // through a native method is enough.
 645 
 646 JNIEXPORT jobject JNICALL
 647 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
 648 
 649 /*
 650  * Signal support, used to implement the shutdown sequence.  Every VM must
 651  * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
 652  * (^C) and the latter for external termination (kill, system shutdown, etc.).
 653  * Other platform-dependent signal values may also be supported.
 654  */
 655 
 656 JNIEXPORT void * JNICALL
 657 JVM_RegisterSignal(jint sig, void *handler);
 658 
 659 JNIEXPORT jboolean JNICALL
 660 JVM_RaiseSignal(jint sig);
 661 
 662 JNIEXPORT jint JNICALL
 663 JVM_FindSignal(const char *name);
 664 
 665 /*
 666  * Retrieve the assertion directives for the specified class.
 667  */
 668 JNIEXPORT jboolean JNICALL
 669 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
 670 
 671 /*
 672  * Retrieve the assertion directives from the VM.
 673  */
 674 JNIEXPORT jobject JNICALL
 675 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
 676 
 677 /*
 678  * java.util.concurrent.atomic.AtomicLong
 679  */
 680 JNIEXPORT jboolean JNICALL
 681 JVM_SupportsCX8(void);
 682 
 683 /*
 684  * com.sun.dtrace.jsdt support
 685  */
 686 
 687 #define JVM_TRACING_DTRACE_VERSION 1
 688 
 689 /*
 690  * Structure to pass one probe description to JVM
 691  */
 692 typedef struct {
 693     jmethodID method;
 694     jstring   function;
 695     jstring   name;
 696     void*            reserved[4];     // for future use
 697 } JVM_DTraceProbe;
 698 
 699 /**
 700  * Encapsulates the stability ratings for a DTrace provider field
 701  */
 702 typedef struct {
 703     jint nameStability;
 704     jint dataStability;
 705     jint dependencyClass;
 706 } JVM_DTraceInterfaceAttributes;
 707 
 708 /*
 709  * Structure to pass one provider description to JVM
 710  */
 711 typedef struct {
 712     jstring                       name;
 713     JVM_DTraceProbe*              probes;
 714     jint                          probe_count;
 715     JVM_DTraceInterfaceAttributes providerAttributes;
 716     JVM_DTraceInterfaceAttributes moduleAttributes;
 717     JVM_DTraceInterfaceAttributes functionAttributes;
 718     JVM_DTraceInterfaceAttributes nameAttributes;
 719     JVM_DTraceInterfaceAttributes argsAttributes;
 720     void*                         reserved[4]; // for future use
 721 } JVM_DTraceProvider;
 722 
 723 /*
 724  * Get the version number the JVM was built with
 725  */
 726 JNIEXPORT jint JNICALL
 727 JVM_DTraceGetVersion(JNIEnv* env);
 728 
 729 /*
 730  * Register new probe with given signature, return global handle
 731  *
 732  * The version passed in is the version that the library code was
 733  * built with.
 734  */
 735 JNIEXPORT jlong JNICALL
 736 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
 737   jint providers_count, JVM_DTraceProvider* providers);
 738 
 739 /*
 740  * Check JSDT probe
 741  */
 742 JNIEXPORT jboolean JNICALL
 743 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
 744 
 745 /*
 746  * Destroy custom DOF
 747  */
 748 JNIEXPORT void JNICALL
 749 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
 750 
 751 /*
 752  * Check to see if DTrace is supported by OS
 753  */
 754 JNIEXPORT jboolean JNICALL
 755 JVM_DTraceIsSupported(JNIEnv* env);
 756 
 757 /*************************************************************************
 758  PART 2: Support for the Verifier and Class File Format Checker
 759  ************************************************************************/
 760 /*
 761  * Return the class name in UTF format. The result is valid
 762  * until JVM_ReleaseUTf is called.
 763  *
 764  * The caller must treat the string as a constant and not modify it
 765  * in any way.
 766  */
 767 JNIEXPORT const char * JNICALL
 768 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
 769 
 770 /*
 771  * Returns the constant pool types in the buffer provided by "types."
 772  */
 773 JNIEXPORT void JNICALL
 774 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
 775 
 776 /*
 777  * Returns the number of Constant Pool entries.
 778  */
 779 JNIEXPORT jint JNICALL
 780 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
 781 
 782 /*
 783  * Returns the number of *declared* fields or methods.
 784  */
 785 JNIEXPORT jint JNICALL
 786 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
 787 
 788 JNIEXPORT jint JNICALL
 789 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
 790 
 791 /*
 792  * Returns the CP indexes of exceptions raised by 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_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
 799                                 unsigned short *exceptions);
 800 /*
 801  * Returns the number of exceptions raised by a given method.
 802  * The method is identified by method_index.
 803  */
 804 JNIEXPORT jint JNICALL
 805 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
 806 
 807 /*
 808  * Returns the byte code sequence of a given method.
 809  * Places the result in the given buffer.
 810  *
 811  * The method is identified by method_index.
 812  */
 813 JNIEXPORT void JNICALL
 814 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
 815                         unsigned char *code);
 816 
 817 /*
 818  * Returns the length of the byte code sequence of a given method.
 819  * The method is identified by method_index.
 820  */
 821 JNIEXPORT jint JNICALL
 822 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
 823 
 824 /*
 825  * A structure used to a capture exception table entry in a Java method.
 826  */
 827 typedef struct {
 828     jint start_pc;
 829     jint end_pc;
 830     jint handler_pc;
 831     jint catchType;
 832 } JVM_ExceptionTableEntryType;
 833 
 834 /*
 835  * Returns the exception table entry at entry_index of a given method.
 836  * Places the result in the given buffer.
 837  *
 838  * The method is identified by method_index.
 839  */
 840 JNIEXPORT void JNICALL
 841 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
 842                                    jint entry_index,
 843                                    JVM_ExceptionTableEntryType *entry);
 844 
 845 /*
 846  * Returns the length of the exception table of a given method.
 847  * The method is identified by method_index.
 848  */
 849 JNIEXPORT jint JNICALL
 850 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
 851 
 852 /*
 853  * Returns the modifiers of a given field.
 854  * The field is identified by field_index.
 855  */
 856 JNIEXPORT jint JNICALL
 857 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
 858 
 859 /*
 860  * Returns the modifiers of a given method.
 861  * The method is identified by method_index.
 862  */
 863 JNIEXPORT jint JNICALL
 864 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
 865 
 866 /*
 867  * Returns the number of local variables of a given method.
 868  * The method is identified by method_index.
 869  */
 870 JNIEXPORT jint JNICALL
 871 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
 872 
 873 /*
 874  * Returns the number of arguments (including this pointer) of a given method.
 875  * The method is identified by method_index.
 876  */
 877 JNIEXPORT jint JNICALL
 878 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
 879 
 880 /*
 881  * Returns the maximum amount of stack (in words) used by a given method.
 882  * The method is identified by method_index.
 883  */
 884 JNIEXPORT jint JNICALL
 885 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
 886 
 887 /*
 888  * Is a given method a constructor.
 889  * The method is identified by method_index.
 890  */
 891 JNIEXPORT jboolean JNICALL
 892 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
 893 
 894 /*
 895  * Is the given method generated by the VM.
 896  * The method is identified by method_index.
 897  */
 898 JNIEXPORT jboolean JNICALL
 899 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
 900 
 901 /*
 902  * Returns the name of a given method in UTF format.
 903  * The result remains valid until JVM_ReleaseUTF is called.
 904  *
 905  * The caller must treat the string as a constant and not modify it
 906  * in any way.
 907  */
 908 JNIEXPORT const char * JNICALL
 909 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
 910 
 911 /*
 912  * Returns the signature of a given method in UTF format.
 913  * The result remains valid until JVM_ReleaseUTF is called.
 914  *
 915  * The caller must treat the string as a constant and not modify it
 916  * in any way.
 917  */
 918 JNIEXPORT const char * JNICALL
 919 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
 920 
 921 /*
 922  * Returns the name of the field referred to at a given constant pool
 923  * index.
 924  *
 925  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 926  * is called.
 927  *
 928  * The caller must treat the string as a constant and not modify it
 929  * in any way.
 930  */
 931 JNIEXPORT const char * JNICALL
 932 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
 933 
 934 /*
 935  * Returns the name of the method referred to at a given constant pool
 936  * index.
 937  *
 938  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 939  * is called.
 940  *
 941  * The caller must treat the string as a constant and not modify it
 942  * in any way.
 943  */
 944 JNIEXPORT const char * JNICALL
 945 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
 946 
 947 /*
 948  * Returns the signature of the method referred to at a given constant pool
 949  * index.
 950  *
 951  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 952  * is called.
 953  *
 954  * The caller must treat the string as a constant and not modify it
 955  * in any way.
 956  */
 957 JNIEXPORT const char * JNICALL
 958 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
 959 
 960 /*
 961  * Returns the signature of the field referred to at a given constant pool
 962  * index.
 963  *
 964  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 965  * is called.
 966  *
 967  * The caller must treat the string as a constant and not modify it
 968  * in any way.
 969  */
 970 JNIEXPORT const char * JNICALL
 971 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
 972 
 973 /*
 974  * Returns the class name referred to at a given constant pool index.
 975  *
 976  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 977  * is called.
 978  *
 979  * The caller must treat the string as a constant and not modify it
 980  * in any way.
 981  */
 982 JNIEXPORT const char * JNICALL
 983 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
 984 
 985 /*
 986  * Returns the class name referred to at a given constant pool index.
 987  *
 988  * The constant pool entry must refer to a CONSTANT_Fieldref.
 989  *
 990  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 991  * is called.
 992  *
 993  * The caller must treat the string as a constant and not modify it
 994  * in any way.
 995  */
 996 JNIEXPORT const char * JNICALL
 997 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
 998 
 999 /*
1000  * Returns the class name referred to at a given constant pool index.
1001  *
1002  * The constant pool entry must refer to CONSTANT_Methodref or
1003  * CONSTANT_InterfaceMethodref.
1004  *
1005  * The result is in UTF format and remains valid until JVM_ReleaseUTF
1006  * is called.
1007  *
1008  * The caller must treat the string as a constant and not modify it
1009  * in any way.
1010  */
1011 JNIEXPORT const char * JNICALL
1012 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1013 
1014 /*
1015  * Returns the modifiers of a field in calledClass. The field is
1016  * referred to in class cb at constant pool entry index.
1017  *
1018  * The caller must treat the string as a constant and not modify it
1019  * in any way.
1020  *
1021  * Returns -1 if the field does not exist in calledClass.
1022  */
1023 JNIEXPORT jint JNICALL
1024 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1025 
1026 /*
1027  * Returns the modifiers of a method in calledClass. The method is
1028  * referred to in class cb at constant pool entry index.
1029  *
1030  * Returns -1 if the method does not exist in calledClass.
1031  */
1032 JNIEXPORT jint JNICALL
1033 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1034 
1035 /*
1036  * Releases the UTF string obtained from the VM.
1037  */
1038 JNIEXPORT void JNICALL
1039 JVM_ReleaseUTF(const char *utf);
1040 
1041 /*
1042  * Compare if two classes are in the same package.
1043  */
1044 JNIEXPORT jboolean JNICALL
1045 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1046 
1047 /* Get classfile constants */
1048 #include "classfile_constants.h"
1049 
1050 /*
1051  * Support for a VM-independent class format checker.
1052  */
1053 typedef struct {
1054     unsigned long code;    /* byte code */
1055     unsigned long excs;    /* exceptions */
1056     unsigned long etab;    /* catch table */
1057     unsigned long lnum;    /* line number */
1058     unsigned long lvar;    /* local vars */
1059 } method_size_info;
1060 
1061 typedef struct {
1062     unsigned int constants;    /* constant pool */
1063     unsigned int fields;
1064     unsigned int methods;
1065     unsigned int interfaces;
1066     unsigned int fields2;      /* number of static 2-word fields */
1067     unsigned int innerclasses; /* # of records in InnerClasses attr */
1068 
1069     method_size_info clinit;   /* memory used in clinit */
1070     method_size_info main;     /* used everywhere else */
1071 } class_size_info;
1072 
1073 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1074                                         JVM_ACC_FINAL | \
1075                                         JVM_ACC_SUPER | \
1076                                         JVM_ACC_INTERFACE | \
1077                                         JVM_ACC_ABSTRACT | \
1078                                         JVM_ACC_ANNOTATION | \
1079                                         JVM_ACC_ENUM | \
1080                                         JVM_ACC_SYNTHETIC)
1081 
1082 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1083                                         JVM_ACC_PRIVATE | \
1084                                         JVM_ACC_PROTECTED | \
1085                                         JVM_ACC_STATIC | \
1086                                         JVM_ACC_FINAL | \
1087                                         JVM_ACC_VOLATILE | \
1088                                         JVM_ACC_TRANSIENT | \
1089                                         JVM_ACC_ENUM | \
1090                                         JVM_ACC_SYNTHETIC)
1091 
1092 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1093                                          JVM_ACC_PRIVATE | \
1094                                          JVM_ACC_PROTECTED | \
1095                                          JVM_ACC_STATIC | \
1096                                          JVM_ACC_FINAL | \
1097                                          JVM_ACC_SYNCHRONIZED | \
1098                                          JVM_ACC_BRIDGE | \
1099                                          JVM_ACC_VARARGS | \
1100                                          JVM_ACC_NATIVE | \
1101                                          JVM_ACC_ABSTRACT | \
1102                                          JVM_ACC_STRICT | \
1103                                          JVM_ACC_SYNTHETIC)
1104 
1105 
1106 /*************************************************************************
1107  PART 3: I/O and Network Support
1108  ************************************************************************/
1109 
1110 /*
1111  * Convert a pathname into native format.  This function does syntactic
1112  * cleanup, such as removing redundant separator characters.  It modifies
1113  * the given pathname string in place.
1114  */
1115 JNIEXPORT char * JNICALL
1116 JVM_NativePath(char *);
1117 
1118 /*
1119  * The standard printing functions supported by the Java VM. (Should they
1120  * be renamed to JVM_* in the future?
1121  */
1122 
1123 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1124  *  respectively, with the following differences:
1125  * - The string written to str is always zero-terminated, also in case of
1126  *   truncation (count is too small to hold the result string), unless count
1127  *   is 0. In case of truncation count-1 characters are written and '\0'
1128  *   appendend.
1129  * - If count is too small to hold the whole string, -1 is returned across
1130  *   all platforms. */
1131 
1132 JNIEXPORT int
1133 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1134 
1135 JNIEXPORT int
1136 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1137 
1138 JNIEXPORT int
1139 jio_fprintf(FILE *, const char *fmt, ...);
1140 
1141 JNIEXPORT int
1142 jio_vfprintf(FILE *, const char *fmt, va_list args);
1143 
1144 
1145 JNIEXPORT void * JNICALL
1146 JVM_RawMonitorCreate(void);
1147 
1148 JNIEXPORT void JNICALL
1149 JVM_RawMonitorDestroy(void *mon);
1150 
1151 JNIEXPORT jint JNICALL
1152 JVM_RawMonitorEnter(void *mon);
1153 
1154 JNIEXPORT void JNICALL
1155 JVM_RawMonitorExit(void *mon);
1156 
1157 /*
1158  * java.lang.management support
1159  */
1160 JNIEXPORT void* JNICALL
1161 JVM_GetManagement(jint version);
1162 
1163 /*
1164  * com.sun.tools.attach.VirtualMachine support
1165  *
1166  * Initialize the agent properties with the properties maintained in the VM.
1167  */
1168 JNIEXPORT jobject JNICALL
1169 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1170 
1171 JNIEXPORT jstring JNICALL
1172 JVM_GetTemporaryDirectory(JNIEnv *env);
1173 
1174 /* Generics reflection support.
1175  *
1176  * Returns information about the given class's EnclosingMethod
1177  * attribute, if present, or null if the class had no enclosing
1178  * method.
1179  *
1180  * If non-null, the returned array contains three elements. Element 0
1181  * is the java.lang.Class of which the enclosing method is a member,
1182  * and elements 1 and 2 are the java.lang.Strings for the enclosing
1183  * method's name and descriptor, respectively.
1184  */
1185 JNIEXPORT jobjectArray JNICALL
1186 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1187 
1188 /*
1189  * This structure is used by the launcher to get the default thread
1190  * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1191  * version of 1.1.  As it is not supported otherwise, it has been removed
1192  * from jni.h
1193  */
1194 typedef struct JDK1_1InitArgs {
1195     jint version;
1196 
1197     char **properties;
1198     jint checkSource;
1199     jint nativeStackSize;
1200     jint javaStackSize;
1201     jint minHeapSize;
1202     jint maxHeapSize;
1203     jint verifyMode;
1204     char *classpath;
1205 
1206     jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1207     void (JNICALL *exit)(jint code);
1208     void (JNICALL *abort)(void);
1209 
1210     jint enableClassGC;
1211     jint enableVerboseGC;
1212     jint disableAsyncGC;
1213     jint verbose;
1214     jboolean debugging;
1215     jint debugPort;
1216 } JDK1_1InitArgs;
1217 
1218 
1219 #ifdef __cplusplus
1220 } /* extern "C" */
1221 
1222 #endif /* __cplusplus */
1223 
1224 #endif /* !_JAVASOFT_JVM_H_ */