1 /*
   2  * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_PRIMS_JVM_H
  26 #define SHARE_VM_PRIMS_JVM_H
  27 
  28 #include "prims/jni.h"
  29 #include "utilities/macros.hpp"
  30 
  31 #include OS_HEADER_H(jvm)
  32 
  33 #ifndef _JAVASOFT_JVM_H_
  34 #define _JAVASOFT_JVM_H_
  35 
  36 // HotSpot integration note:
  37 //
  38 // This file and jvm.h used with the JDK are identical,
  39 // except for the three includes removed below
  40 
  41 // #include <sys/stat.h>
  42 // #include "jni.h"
  43 // #include "jvm_md.h"
  44 
  45 
  46 #ifdef __cplusplus
  47 extern "C" {
  48 #endif
  49 
  50 /*
  51  * This file contains additional functions exported from the VM.
  52  * These functions are complementary to the standard JNI support.
  53  * There are three parts to this file:
  54  *
  55  * First, this file contains the VM-related functions needed by native
  56  * libraries in the standard Java API. For example, the java.lang.Object
  57  * class needs VM-level functions that wait for and notify monitors.
  58  *
  59  * Second, this file contains the functions and constant definitions
  60  * needed by the byte code verifier and class file format checker.
  61  * These functions allow the verifier and format checker to be written
  62  * in a VM-independent way.
  63  *
  64  * Third, this file contains various I/O and nerwork operations needed
  65  * by the standard Java I/O and network APIs.
  66  */
  67 
  68 /*
  69  * Bump the version number when either of the following happens:
  70  *
  71  * 1. There is a change in JVM_* functions.
  72  *
  73  * 2. There is a change in the contract between VM and Java classes.
  74  *    For example, if the VM relies on a new private field in Thread
  75  *    class.
  76  */
  77 
  78 #define JVM_INTERFACE_VERSION 5
  79 
  80 JNIEXPORT jobjectArray JNICALL
  81 JVM_GetMethodParameters(JNIEnv *env, jobject method);
  82 
  83 JNIEXPORT jint JNICALL
  84 JVM_GetInterfaceVersion(void);
  85 
  86 /*************************************************************************
  87  PART 1: Functions for Native Libraries
  88  ************************************************************************/
  89 /*
  90  * java.lang.Object
  91  */
  92 JNIEXPORT jint JNICALL
  93 JVM_IHashCode(JNIEnv *env, jobject obj);
  94 
  95 JNIEXPORT void JNICALL
  96 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
  97 
  98 JNIEXPORT void JNICALL
  99 JVM_MonitorNotify(JNIEnv *env, jobject obj);
 100 
 101 JNIEXPORT void JNICALL
 102 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
 103 
 104 JNIEXPORT jobject JNICALL
 105 JVM_Clone(JNIEnv *env, jobject obj);
 106 
 107 /*
 108  * java.lang.String
 109  */
 110 JNIEXPORT jstring JNICALL
 111 JVM_InternString(JNIEnv *env, jstring str);
 112 
 113 /*
 114  * java.lang.System
 115  */
 116 JNIEXPORT jlong JNICALL
 117 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
 118 
 119 JNIEXPORT jlong JNICALL
 120 JVM_NanoTime(JNIEnv *env, jclass ignored);
 121 
 122 JNIEXPORT jlong JNICALL
 123 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);
 124 
 125 JNIEXPORT void JNICALL
 126 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
 127               jobject dst, jint dst_pos, jint length);
 128 
 129 JNIEXPORT jobject JNICALL
 130 JVM_InitProperties(JNIEnv *env, jobject p);
 131 
 132 /*
 133  * java.lang.Runtime
 134  */
 135 
 136 JNIEXPORT void JNICALL
 137 JVM_Halt(jint code);
 138 
 139 JNIEXPORT void JNICALL
 140 JVM_GC(void);
 141 
 142 /* Returns the number of real-time milliseconds that have elapsed since the
 143  * least-recently-inspected heap object was last inspected by the garbage
 144  * collector.
 145  *
 146  * For simple stop-the-world collectors this value is just the time
 147  * since the most recent collection.  For generational collectors it is the
 148  * time since the oldest generation was most recently collected.  Other
 149  * collectors are free to return a pessimistic estimate of the elapsed time, or
 150  * simply the time since the last full collection was performed.
 151  *
 152  * Note that in the presence of reference objects, a given object that is no
 153  * longer strongly reachable may have to be inspected multiple times before it
 154  * can be reclaimed.
 155  */
 156 JNIEXPORT jlong JNICALL
 157 JVM_MaxObjectInspectionAge(void);
 158 
 159 JNIEXPORT jlong JNICALL
 160 JVM_TotalMemory(void);
 161 
 162 JNIEXPORT jlong JNICALL
 163 JVM_FreeMemory(void);
 164 
 165 JNIEXPORT jlong JNICALL
 166 JVM_MaxMemory(void);
 167 
 168 JNIEXPORT jint JNICALL
 169 JVM_ActiveProcessorCount(void);
 170 
 171 JNIEXPORT void * JNICALL
 172 JVM_LoadLibrary(const char *name);
 173 
 174 JNIEXPORT void JNICALL
 175 JVM_UnloadLibrary(void * handle);
 176 
 177 JNIEXPORT void * JNICALL
 178 JVM_FindLibraryEntry(void *handle, const char *name);
 179 
 180 JNIEXPORT jboolean JNICALL
 181 JVM_IsSupportedJNIVersion(jint version);
 182 
 183 JNIEXPORT jobjectArray JNICALL
 184 JVM_GetVmArguments(JNIEnv *env);
 185 
 186 /*
 187  * java.lang.Throwable
 188  */
 189 JNIEXPORT void JNICALL
 190 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
 191 
 192 /*
 193  * java.lang.StackTraceElement
 194  */
 195 JNIEXPORT void JNICALL
 196 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);
 197 
 198 JNIEXPORT void JNICALL
 199 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
 200 
 201 /*
 202  * java.lang.StackWalker
 203  */
 204 enum {
 205   JVM_STACKWALK_FILL_CLASS_REFS_ONLY       = 0x02,
 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 jint JNICALL
 252 JVM_CountStackFrames(JNIEnv *env, jobject thread);
 253 
 254 JNIEXPORT void JNICALL
 255 JVM_Interrupt(JNIEnv *env, jobject thread);
 256 
 257 JNIEXPORT jboolean JNICALL
 258 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
 259 
 260 JNIEXPORT jboolean JNICALL
 261 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
 262 
 263 JNIEXPORT void JNICALL
 264 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
 265 
 266 JNIEXPORT jobjectArray JNICALL
 267 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
 268 
 269 JNIEXPORT void JNICALL
 270 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
 271 
 272 /* getStackTrace() and getAllStackTraces() method */
 273 JNIEXPORT jobjectArray JNICALL
 274 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
 275 
 276 /*
 277  * java.lang.Continuation
 278  */
 279 JNIEXPORT void JNICALL 
 280 JVM_RegisterContinuationMethods(JNIEnv *env, jclass cls);
 281 
 282 /*
 283  * java.lang.SecurityManager
 284  */
 285 JNIEXPORT jclass JNICALL
 286 JVM_CurrentLoadedClass(JNIEnv *env);
 287 
 288 JNIEXPORT jobject JNICALL
 289 JVM_CurrentClassLoader(JNIEnv *env);
 290 
 291 JNIEXPORT jobjectArray JNICALL
 292 JVM_GetClassContext(JNIEnv *env);
 293 
 294 JNIEXPORT jint JNICALL
 295 JVM_ClassDepth(JNIEnv *env, jstring name);
 296 
 297 JNIEXPORT jint JNICALL
 298 JVM_ClassLoaderDepth(JNIEnv *env);
 299 
 300 /*
 301  * java.lang.Package
 302  */
 303 JNIEXPORT jstring JNICALL
 304 JVM_GetSystemPackage(JNIEnv *env, jstring name);
 305 
 306 JNIEXPORT jobjectArray JNICALL
 307 JVM_GetSystemPackages(JNIEnv *env);
 308 
 309 /*
 310  * java.lang.ref.Reference
 311  */
 312 JNIEXPORT jobject JNICALL
 313 JVM_GetAndClearReferencePendingList(JNIEnv *env);
 314 
 315 JNIEXPORT jboolean JNICALL
 316 JVM_HasReferencePendingList(JNIEnv *env);
 317 
 318 JNIEXPORT void JNICALL
 319 JVM_WaitForReferencePendingList(JNIEnv *env);
 320 
 321 /*
 322  * java.io.ObjectInputStream
 323  */
 324 JNIEXPORT jobject JNICALL
 325 JVM_LatestUserDefinedLoader(JNIEnv *env);
 326 
 327 /*
 328  * java.lang.reflect.Array
 329  */
 330 JNIEXPORT jint JNICALL
 331 JVM_GetArrayLength(JNIEnv *env, jobject arr);
 332 
 333 JNIEXPORT jobject JNICALL
 334 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
 335 
 336 JNIEXPORT jvalue JNICALL
 337 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
 338 
 339 JNIEXPORT void JNICALL
 340 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
 341 
 342 JNIEXPORT void JNICALL
 343 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
 344                              unsigned char vCode);
 345 
 346 JNIEXPORT jobject JNICALL
 347 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
 348 
 349 JNIEXPORT jobject JNICALL
 350 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
 351 
 352 /*
 353  * java.lang.Class and java.lang.ClassLoader
 354  */
 355 
 356 #define JVM_CALLER_DEPTH -1
 357 
 358 /*
 359  * Returns the class in which the code invoking the native method
 360  * belongs.
 361  *
 362  * Note that in JDK 1.1, native methods did not create a frame.
 363  * In 1.2, they do. Therefore native methods like Class.forName
 364  * can no longer look at the current frame for the caller class.
 365  */
 366 JNIEXPORT jclass JNICALL
 367 JVM_GetCallerClass(JNIEnv *env, int n);
 368 
 369 /*
 370  * Find primitive classes
 371  * utf: class name
 372  */
 373 JNIEXPORT jclass JNICALL
 374 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
 375 
 376 /*
 377  * Find a class from a boot class loader. Returns NULL if class not found.
 378  */
 379 JNIEXPORT jclass JNICALL
 380 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
 381 
 382 /*
 383  * Find a class from a given class loader.  Throws ClassNotFoundException.
 384  *  name:   name of class
 385  *  init:   whether initialization is done
 386  *  loader: class loader to look up the class. This may not be the same as the caller's
 387  *          class loader.
 388  *  caller: initiating class. The initiating class may be null when a security
 389  *          manager is not installed.
 390  */
 391 JNIEXPORT jclass JNICALL
 392 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
 393                         jobject loader, jclass caller);
 394 
 395 /*
 396  * Find a class from a given class.
 397  */
 398 JNIEXPORT jclass JNICALL
 399 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
 400                              jclass from);
 401 
 402 /* Find a loaded class cached by the VM */
 403 JNIEXPORT jclass JNICALL
 404 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
 405 
 406 /* Define a class */
 407 JNIEXPORT jclass JNICALL
 408 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
 409                 jsize len, jobject pd);
 410 
 411 /* Define a class with a source (added in JDK1.5) */
 412 JNIEXPORT jclass JNICALL
 413 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
 414                           const jbyte *buf, jsize len, jobject pd,
 415                           const char *source);
 416 
 417 /*
 418  * Module support funcions
 419  */
 420 
 421 /*
 422  * Define a module with the specified packages and bind the module to the
 423  * given class loader.
 424  *  module:       module to define
 425  *  is_open:      specifies if module is open (currently ignored)
 426  *  version:      the module version
 427  *  location:     the module location
 428  *  packages:     list of packages in the module
 429  *  num_packages: number of packages in the module
 430  */
 431 JNIEXPORT void JNICALL
 432 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
 433                  jstring location, const char* const* packages, jsize num_packages);
 434 
 435 /*
 436  * Set the boot loader's unnamed module.
 437  *  module: boot loader's unnamed module
 438  */
 439 JNIEXPORT void JNICALL
 440 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
 441 
 442 /*
 443  * Do a qualified export of a package.
 444  *  from_module: module containing the package to export
 445  *  package:     name of the package to export
 446  *  to_module:   module to export the package to
 447  */
 448 JNIEXPORT void JNICALL
 449 JVM_AddModuleExports(JNIEnv *env, jobject from_module, const char* package, jobject to_module);
 450 
 451 /*
 452  * Do an export of a package to all unnamed modules.
 453  *  from_module: module containing the package to export
 454  *  package:     name of the package to export to all unnamed modules
 455  */
 456 JNIEXPORT void JNICALL
 457 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, const char* package);
 458 
 459 /*
 460  * Do an unqualified export of a package.
 461  *  from_module: module containing the package to export
 462  *  package:     name of the package to export
 463  */
 464 JNIEXPORT void JNICALL
 465 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, const char* package);
 466 
 467 /*
 468  * Add a module to the list of modules that a given module can read.
 469  *  from_module:   module requesting read access
 470  *  source_module: module that from_module wants to read
 471  */
 472 JNIEXPORT void JNICALL
 473 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
 474 
 475 /*
 476  * Reflection support functions
 477  */
 478 
 479 JNIEXPORT jstring JNICALL
 480 JVM_GetClassName(JNIEnv *env, jclass cls);
 481 
 482 JNIEXPORT jobjectArray JNICALL
 483 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
 484 
 485 JNIEXPORT jboolean JNICALL
 486 JVM_IsInterface(JNIEnv *env, jclass cls);
 487 
 488 JNIEXPORT jobjectArray JNICALL
 489 JVM_GetClassSigners(JNIEnv *env, jclass cls);
 490 
 491 JNIEXPORT void JNICALL
 492 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
 493 
 494 JNIEXPORT jobject JNICALL
 495 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
 496 
 497 JNIEXPORT jboolean JNICALL
 498 JVM_IsArrayClass(JNIEnv *env, jclass cls);
 499 
 500 JNIEXPORT jboolean JNICALL
 501 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
 502 
 503 JNIEXPORT jint JNICALL
 504 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
 505 
 506 JNIEXPORT jobjectArray JNICALL
 507 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
 508 
 509 JNIEXPORT jclass JNICALL
 510 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
 511 
 512 JNIEXPORT jstring JNICALL
 513 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
 514 
 515 /* Generics support (JDK 1.5) */
 516 JNIEXPORT jstring JNICALL
 517 JVM_GetClassSignature(JNIEnv *env, jclass cls);
 518 
 519 /* Annotations support (JDK 1.5) */
 520 JNIEXPORT jbyteArray JNICALL
 521 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
 522 
 523 /* Annotations support (JDK 1.6) */
 524 
 525 /* Type use annotations support (JDK 1.8) */
 526 
 527 JNIEXPORT jbyteArray JNICALL
 528 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
 529 
 530 // field is a handle to a java.lang.reflect.Field object
 531 JNIEXPORT jbyteArray JNICALL
 532 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
 533 
 534 // method is a handle to a java.lang.reflect.Method object
 535 JNIEXPORT jbyteArray JNICALL
 536 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
 537 
 538 /*
 539  * New (JDK 1.4) reflection implementation
 540  */
 541 
 542 JNIEXPORT jobjectArray JNICALL
 543 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 544 
 545 JNIEXPORT jobjectArray JNICALL
 546 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 547 
 548 JNIEXPORT jobjectArray JNICALL
 549 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
 550 
 551 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
 552    This returns the access flags for the class as specified in the
 553    class file rather than searching the InnerClasses attribute (if
 554    present) to find the source-level access flags. Only the values of
 555    the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
 556    valid. */
 557 JNIEXPORT jint JNICALL
 558 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
 559 
 560 /*
 561  * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
 562  */
 563 
 564 JNIEXPORT jobject JNICALL
 565 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
 566 
 567 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
 568 (JNIEnv *env, jobject obj, jobject unused);
 569 
 570 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
 571 (JNIEnv *env, jobject obj, jobject unused, jint index);
 572 
 573 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
 574 (JNIEnv *env, jobject obj, jobject unused, jint index);
 575 
 576 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
 577 (JNIEnv *env, jobject obj, jobject unused, jint index);
 578 
 579 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
 580 (JNIEnv *env, jobject obj, jobject unused, jint index);
 581 
 582 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
 583 (JNIEnv *env, jobject obj, jobject unused, jint index);
 584 
 585 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
 586 (JNIEnv *env, jobject obj, jobject unused, jint index);
 587 
 588 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
 589 (JNIEnv *env, jobject obj, jobject unused, jint index);
 590 
 591 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
 592 (JNIEnv *env, jobject obj, jobject unused, jint index);
 593 
 594 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
 595 (JNIEnv *env, jobject obj, jobject unused, jint index);
 596 
 597 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
 598 (JNIEnv *env, jobject obj, jobject unused, jint index);
 599 
 600 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
 601 (JNIEnv *env, jobject obj, jobject unused, jint index);
 602 
 603 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
 604 (JNIEnv *env, jobject obj, jobject unused, jint index);
 605 
 606 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
 607 (JNIEnv *env, jobject obj, jobject unused, jint index);
 608 
 609 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
 610 (JNIEnv *env, jobject obj, jobject unused, jint index);
 611 
 612 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
 613 (JNIEnv *env, jobject obj, jobject unused, jint index);
 614 
 615 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
 616 (JNIEnv *env, jobject obj, jobject unused, jint index);
 617 
 618 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
 619 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
 620 
 621 /*
 622  * java.security.*
 623  */
 624 
 625 JNIEXPORT jobject JNICALL
 626 JVM_DoPrivileged(JNIEnv *env, jclass cls,
 627                  jobject action, jobject context, jboolean wrapException);
 628 
 629 JNIEXPORT jobject JNICALL
 630 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
 631 
 632 JNIEXPORT jobject JNICALL
 633 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
 634 
 635 /*
 636  * Signal support, used to implement the shutdown sequence.  Every VM must
 637  * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
 638  * (^C) and the latter for external termination (kill, system shutdown, etc.).
 639  * Other platform-dependent signal values may also be supported.
 640  */
 641 
 642 JNIEXPORT void * JNICALL
 643 JVM_RegisterSignal(jint sig, void *handler);
 644 
 645 JNIEXPORT jboolean JNICALL
 646 JVM_RaiseSignal(jint sig);
 647 
 648 JNIEXPORT jint JNICALL
 649 JVM_FindSignal(const char *name);
 650 
 651 /*
 652  * Retrieve the assertion directives for the specified class.
 653  */
 654 JNIEXPORT jboolean JNICALL
 655 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
 656 
 657 /*
 658  * Retrieve the assertion directives from the VM.
 659  */
 660 JNIEXPORT jobject JNICALL
 661 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
 662 
 663 /*
 664  * java.util.concurrent.atomic.AtomicLong
 665  */
 666 JNIEXPORT jboolean JNICALL
 667 JVM_SupportsCX8(void);
 668 
 669 /*************************************************************************
 670  PART 2: Support for the Verifier and Class File Format Checker
 671  ************************************************************************/
 672 /*
 673  * Return the class name in UTF format. The result is valid
 674  * until JVM_ReleaseUTf is called.
 675  *
 676  * The caller must treat the string as a constant and not modify it
 677  * in any way.
 678  */
 679 JNIEXPORT const char * JNICALL
 680 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
 681 
 682 /*
 683  * Returns the constant pool types in the buffer provided by "types."
 684  */
 685 JNIEXPORT void JNICALL
 686 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
 687 
 688 /*
 689  * Returns the number of Constant Pool entries.
 690  */
 691 JNIEXPORT jint JNICALL
 692 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
 693 
 694 /*
 695  * Returns the number of *declared* fields or methods.
 696  */
 697 JNIEXPORT jint JNICALL
 698 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
 699 
 700 JNIEXPORT jint JNICALL
 701 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
 702 
 703 /*
 704  * Returns the CP indexes of exceptions raised by a given method.
 705  * Places the result in the given buffer.
 706  *
 707  * The method is identified by method_index.
 708  */
 709 JNIEXPORT void JNICALL
 710 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
 711                                 unsigned short *exceptions);
 712 /*
 713  * Returns the number of exceptions raised by a given method.
 714  * The method is identified by method_index.
 715  */
 716 JNIEXPORT jint JNICALL
 717 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
 718 
 719 /*
 720  * Returns the byte code sequence of a given method.
 721  * Places the result in the given buffer.
 722  *
 723  * The method is identified by method_index.
 724  */
 725 JNIEXPORT void JNICALL
 726 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
 727                         unsigned char *code);
 728 
 729 /*
 730  * Returns the length of the byte code sequence of a given method.
 731  * The method is identified by method_index.
 732  */
 733 JNIEXPORT jint JNICALL
 734 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
 735 
 736 /*
 737  * A structure used to a capture exception table entry in a Java method.
 738  */
 739 typedef struct {
 740     jint start_pc;
 741     jint end_pc;
 742     jint handler_pc;
 743     jint catchType;
 744 } JVM_ExceptionTableEntryType;
 745 
 746 /*
 747  * Returns the exception table entry at entry_index of a given method.
 748  * Places the result in the given buffer.
 749  *
 750  * The method is identified by method_index.
 751  */
 752 JNIEXPORT void JNICALL
 753 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
 754                                    jint entry_index,
 755                                    JVM_ExceptionTableEntryType *entry);
 756 
 757 /*
 758  * Returns the length of the exception table of a given method.
 759  * The method is identified by method_index.
 760  */
 761 JNIEXPORT jint JNICALL
 762 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
 763 
 764 /*
 765  * Returns the modifiers of a given field.
 766  * The field is identified by field_index.
 767  */
 768 JNIEXPORT jint JNICALL
 769 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
 770 
 771 /*
 772  * Returns the modifiers of a given method.
 773  * The method is identified by method_index.
 774  */
 775 JNIEXPORT jint JNICALL
 776 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
 777 
 778 /*
 779  * Returns the number of local variables of a given method.
 780  * The method is identified by method_index.
 781  */
 782 JNIEXPORT jint JNICALL
 783 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
 784 
 785 /*
 786  * Returns the number of arguments (including this pointer) of a given method.
 787  * The method is identified by method_index.
 788  */
 789 JNIEXPORT jint JNICALL
 790 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
 791 
 792 /*
 793  * Returns the maximum amount of stack (in words) used by a given method.
 794  * The method is identified by method_index.
 795  */
 796 JNIEXPORT jint JNICALL
 797 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
 798 
 799 /*
 800  * Is a given method a constructor.
 801  * The method is identified by method_index.
 802  */
 803 JNIEXPORT jboolean JNICALL
 804 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
 805 
 806 /*
 807  * Is the given method generated by the VM.
 808  * The method is identified by method_index.
 809  */
 810 JNIEXPORT jboolean JNICALL
 811 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
 812 
 813 /*
 814  * Returns the name of a given method in UTF format.
 815  * The result remains valid until JVM_ReleaseUTF is called.
 816  *
 817  * The caller must treat the string as a constant and not modify it
 818  * in any way.
 819  */
 820 JNIEXPORT const char * JNICALL
 821 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
 822 
 823 /*
 824  * Returns the signature of a given method in UTF format.
 825  * The result remains valid until JVM_ReleaseUTF is called.
 826  *
 827  * The caller must treat the string as a constant and not modify it
 828  * in any way.
 829  */
 830 JNIEXPORT const char * JNICALL
 831 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
 832 
 833 /*
 834  * Returns the name of the field refered to at a given constant pool
 835  * index.
 836  *
 837  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 838  * is called.
 839  *
 840  * The caller must treat the string as a constant and not modify it
 841  * in any way.
 842  */
 843 JNIEXPORT const char * JNICALL
 844 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
 845 
 846 /*
 847  * Returns the name of the method refered to at a given constant pool
 848  * index.
 849  *
 850  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 851  * is called.
 852  *
 853  * The caller must treat the string as a constant and not modify it
 854  * in any way.
 855  */
 856 JNIEXPORT const char * JNICALL
 857 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
 858 
 859 /*
 860  * Returns the signature of the method refered to at a given constant pool
 861  * index.
 862  *
 863  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 864  * is called.
 865  *
 866  * The caller must treat the string as a constant and not modify it
 867  * in any way.
 868  */
 869 JNIEXPORT const char * JNICALL
 870 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
 871 
 872 /*
 873  * Returns the signature of the field refered to at a given constant pool
 874  * index.
 875  *
 876  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 877  * is called.
 878  *
 879  * The caller must treat the string as a constant and not modify it
 880  * in any way.
 881  */
 882 JNIEXPORT const char * JNICALL
 883 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
 884 
 885 /*
 886  * Returns the class name refered to at a given constant pool index.
 887  *
 888  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 889  * is called.
 890  *
 891  * The caller must treat the string as a constant and not modify it
 892  * in any way.
 893  */
 894 JNIEXPORT const char * JNICALL
 895 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
 896 
 897 /*
 898  * Returns the class name refered to at a given constant pool index.
 899  *
 900  * The constant pool entry must refer to a CONSTANT_Fieldref.
 901  *
 902  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 903  * 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_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
 910 
 911 /*
 912  * Returns the class name refered to at a given constant pool index.
 913  *
 914  * The constant pool entry must refer to CONSTANT_Methodref or
 915  * CONSTANT_InterfaceMethodref.
 916  *
 917  * The result is in UTF format and remains valid until JVM_ReleaseUTF
 918  * is called.
 919  *
 920  * The caller must treat the string as a constant and not modify it
 921  * in any way.
 922  */
 923 JNIEXPORT const char * JNICALL
 924 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
 925 
 926 /*
 927  * Returns the modifiers of a field in calledClass. The field is
 928  * referred to in class cb at constant pool entry index.
 929  *
 930  * The caller must treat the string as a constant and not modify it
 931  * in any way.
 932  *
 933  * Returns -1 if the field does not exist in calledClass.
 934  */
 935 JNIEXPORT jint JNICALL
 936 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
 937 
 938 /*
 939  * Returns the modifiers of a method in calledClass. The method is
 940  * referred to in class cb at constant pool entry index.
 941  *
 942  * Returns -1 if the method does not exist in calledClass.
 943  */
 944 JNIEXPORT jint JNICALL
 945 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
 946 
 947 /*
 948  * Releases the UTF string obtained from the VM.
 949  */
 950 JNIEXPORT void JNICALL
 951 JVM_ReleaseUTF(const char *utf);
 952 
 953 /*
 954  * Compare if two classes are in the same package.
 955  */
 956 JNIEXPORT jboolean JNICALL
 957 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
 958 
 959 /* Constants in class files */
 960 
 961 #define JVM_ACC_PUBLIC        0x0001  /* visible to everyone */
 962 #define JVM_ACC_PRIVATE       0x0002  /* visible only to the defining class */
 963 #define JVM_ACC_PROTECTED     0x0004  /* visible to subclasses */
 964 #define JVM_ACC_STATIC        0x0008  /* instance variable is static */
 965 #define JVM_ACC_FINAL         0x0010  /* no further subclassing, overriding */
 966 #define JVM_ACC_SYNCHRONIZED  0x0020  /* wrap method call in monitor lock */
 967 #define JVM_ACC_SUPER         0x0020  /* funky handling of invokespecial */
 968 #define JVM_ACC_VOLATILE      0x0040  /* can not cache in registers */
 969 #define JVM_ACC_BRIDGE        0x0040  /* bridge method generated by compiler */
 970 #define JVM_ACC_TRANSIENT     0x0080  /* not persistent */
 971 #define JVM_ACC_VARARGS       0x0080  /* method declared with variable number of args */
 972 #define JVM_ACC_NATIVE        0x0100  /* implemented in C */
 973 #define JVM_ACC_INTERFACE     0x0200  /* class is an interface */
 974 #define JVM_ACC_ABSTRACT      0x0400  /* no definition provided */
 975 #define JVM_ACC_STRICT        0x0800  /* strict floating point */
 976 #define JVM_ACC_SYNTHETIC     0x1000  /* compiler-generated class, method or field */
 977 #define JVM_ACC_ANNOTATION    0x2000  /* annotation type */
 978 #define JVM_ACC_ENUM          0x4000  /* field is declared as element of enum */
 979 #define JVM_ACC_MODULE        0x8000  /* module-info class file */
 980 
 981 #define JVM_ACC_PUBLIC_BIT        0
 982 #define JVM_ACC_PRIVATE_BIT       1
 983 #define JVM_ACC_PROTECTED_BIT     2
 984 #define JVM_ACC_STATIC_BIT        3
 985 #define JVM_ACC_FINAL_BIT         4
 986 #define JVM_ACC_SYNCHRONIZED_BIT  5
 987 #define JVM_ACC_SUPER_BIT         5
 988 #define JVM_ACC_VOLATILE_BIT      6
 989 #define JVM_ACC_BRIDGE_BIT        6
 990 #define JVM_ACC_TRANSIENT_BIT     7
 991 #define JVM_ACC_VARARGS_BIT       7
 992 #define JVM_ACC_NATIVE_BIT        8
 993 #define JVM_ACC_INTERFACE_BIT     9
 994 #define JVM_ACC_ABSTRACT_BIT      10
 995 #define JVM_ACC_STRICT_BIT        11
 996 #define JVM_ACC_SYNTHETIC_BIT     12
 997 #define JVM_ACC_ANNOTATION_BIT    13
 998 #define JVM_ACC_ENUM_BIT          14
 999 
1000 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1001 enum {
1002     JVM_CONSTANT_Utf8 = 1,
1003     JVM_CONSTANT_Unicode,               /* unused */
1004     JVM_CONSTANT_Integer,
1005     JVM_CONSTANT_Float,
1006     JVM_CONSTANT_Long,
1007     JVM_CONSTANT_Double,
1008     JVM_CONSTANT_Class,
1009     JVM_CONSTANT_String,
1010     JVM_CONSTANT_Fieldref,
1011     JVM_CONSTANT_Methodref,
1012     JVM_CONSTANT_InterfaceMethodref,
1013     JVM_CONSTANT_NameAndType,
1014     JVM_CONSTANT_MethodHandle           = 15,  // JSR 292
1015     JVM_CONSTANT_MethodType             = 16,  // JSR 292
1016     //JVM_CONSTANT_(unused)             = 17,  // JSR 292 early drafts only
1017     JVM_CONSTANT_InvokeDynamic          = 18,  // JSR 292
1018     JVM_CONSTANT_ExternalMax            = 18   // Last tag found in classfiles
1019 };
1020 
1021 /* JVM_CONSTANT_MethodHandle subtypes */
1022 enum {
1023     JVM_REF_getField                = 1,
1024     JVM_REF_getStatic               = 2,
1025     JVM_REF_putField                = 3,
1026     JVM_REF_putStatic               = 4,
1027     JVM_REF_invokeVirtual           = 5,
1028     JVM_REF_invokeStatic            = 6,
1029     JVM_REF_invokeSpecial           = 7,
1030     JVM_REF_newInvokeSpecial        = 8,
1031     JVM_REF_invokeInterface         = 9
1032 };
1033 
1034 /* Used in the newarray instruction. */
1035 
1036 #define JVM_T_BOOLEAN 4
1037 #define JVM_T_CHAR    5
1038 #define JVM_T_FLOAT   6
1039 #define JVM_T_DOUBLE  7
1040 #define JVM_T_BYTE    8
1041 #define JVM_T_SHORT   9
1042 #define JVM_T_INT    10
1043 #define JVM_T_LONG   11
1044 
1045 /* JVM method signatures */
1046 
1047 #define JVM_SIGNATURE_ARRAY             '['
1048 #define JVM_SIGNATURE_BYTE              'B'
1049 #define JVM_SIGNATURE_CHAR              'C'
1050 #define JVM_SIGNATURE_CLASS             'L'
1051 #define JVM_SIGNATURE_ENDCLASS          ';'
1052 #define JVM_SIGNATURE_ENUM              'E'
1053 #define JVM_SIGNATURE_FLOAT             'F'
1054 #define JVM_SIGNATURE_DOUBLE            'D'
1055 #define JVM_SIGNATURE_FUNC              '('
1056 #define JVM_SIGNATURE_ENDFUNC           ')'
1057 #define JVM_SIGNATURE_INT               'I'
1058 #define JVM_SIGNATURE_LONG              'J'
1059 #define JVM_SIGNATURE_SHORT             'S'
1060 #define JVM_SIGNATURE_VOID              'V'
1061 #define JVM_SIGNATURE_BOOLEAN           'Z'
1062 
1063 /*
1064  * A function defined by the byte-code verifier and called by the VM.
1065  * This is not a function implemented in the VM.
1066  *
1067  * Returns JNI_FALSE if verification fails. A detailed error message
1068  * will be places in msg_buf, whose length is specified by buf_len.
1069  */
1070 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1071                                   jclass cb,
1072                                   char * msg_buf,
1073                                   jint buf_len);
1074 
1075 
1076 /*
1077  * Support for a VM-independent class format checker.
1078  */
1079 typedef struct {
1080     unsigned long code;    /* byte code */
1081     unsigned long excs;    /* exceptions */
1082     unsigned long etab;    /* catch table */
1083     unsigned long lnum;    /* line number */
1084     unsigned long lvar;    /* local vars */
1085 } method_size_info;
1086 
1087 typedef struct {
1088     unsigned int constants;    /* constant pool */
1089     unsigned int fields;
1090     unsigned int methods;
1091     unsigned int interfaces;
1092     unsigned int fields2;      /* number of static 2-word fields */
1093     unsigned int innerclasses; /* # of records in InnerClasses attr */
1094 
1095     method_size_info clinit;   /* memory used in clinit */
1096     method_size_info main;     /* used everywhere else */
1097 } class_size_info;
1098 
1099 /*
1100  * Functions defined in libjava.so to perform string conversions.
1101  *
1102  */
1103 
1104 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1105 
1106 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1107 
1108 /* This is the function defined in libjava.so that performs class
1109  * format checks. This functions fills in size information about
1110  * the class file and returns:
1111  *
1112  *   0: good
1113  *  -1: out of memory
1114  *  -2: bad format
1115  *  -3: unsupported version
1116  *  -4: bad class name
1117  */
1118 
1119 typedef jint (*check_format_fn_t)(char *class_name,
1120                                   unsigned char *data,
1121                                   unsigned int data_size,
1122                                   class_size_info *class_size,
1123                                   char *message_buffer,
1124                                   jint buffer_length,
1125                                   jboolean measure_only,
1126                                   jboolean check_relaxed);
1127 
1128 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1129                                         JVM_ACC_FINAL | \
1130                                         JVM_ACC_SUPER | \
1131                                         JVM_ACC_INTERFACE | \
1132                                         JVM_ACC_ABSTRACT | \
1133                                         JVM_ACC_ANNOTATION | \
1134                                         JVM_ACC_ENUM | \
1135                                         JVM_ACC_SYNTHETIC)
1136 
1137 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1138                                         JVM_ACC_PRIVATE | \
1139                                         JVM_ACC_PROTECTED | \
1140                                         JVM_ACC_STATIC | \
1141                                         JVM_ACC_FINAL | \
1142                                         JVM_ACC_VOLATILE | \
1143                                         JVM_ACC_TRANSIENT | \
1144                                         JVM_ACC_ENUM | \
1145                                         JVM_ACC_SYNTHETIC)
1146 
1147 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1148                                          JVM_ACC_PRIVATE | \
1149                                          JVM_ACC_PROTECTED | \
1150                                          JVM_ACC_STATIC | \
1151                                          JVM_ACC_FINAL | \
1152                                          JVM_ACC_SYNCHRONIZED | \
1153                                          JVM_ACC_BRIDGE | \
1154                                          JVM_ACC_VARARGS | \
1155                                          JVM_ACC_NATIVE | \
1156                                          JVM_ACC_ABSTRACT | \
1157                                          JVM_ACC_STRICT | \
1158                                          JVM_ACC_SYNTHETIC)
1159 
1160 /*
1161  * This is the function defined in libjava.so to perform path
1162  * canonicalization. VM call this function before opening jar files
1163  * to load system classes.
1164  *
1165  */
1166 
1167 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1168 
1169 /*************************************************************************
1170  PART 3: I/O and Network Support
1171  ************************************************************************/
1172 
1173 /*
1174  * Convert a pathname into native format.  This function does syntactic
1175  * cleanup, such as removing redundant separator characters.  It modifies
1176  * the given pathname string in place.
1177  */
1178 JNIEXPORT char * JNICALL
1179 JVM_NativePath(char *);
1180 
1181 /*
1182  * The standard printing functions supported by the Java VM. (Should they
1183  * be renamed to JVM_* in the future?
1184  */
1185 
1186 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1187  *  respectively, with the following differences:
1188  * - The string written to str is always zero-terminated, also in case of
1189  *   truncation (count is too small to hold the result string), unless count
1190  *   is 0. In case of truncation count-1 characters are written and '\0'
1191  *   appendend.
1192  * - If count is too small to hold the whole string, -1 is returned across
1193  *   all platforms. */
1194 JNIEXPORT int
1195 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1196 
1197 JNIEXPORT int
1198 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1199 
1200 JNIEXPORT int
1201 jio_fprintf(FILE *, const char *fmt, ...);
1202 
1203 JNIEXPORT int
1204 jio_vfprintf(FILE *, const char *fmt, va_list args);
1205 
1206 
1207 JNIEXPORT void * JNICALL
1208 JVM_RawMonitorCreate(void);
1209 
1210 JNIEXPORT void JNICALL
1211 JVM_RawMonitorDestroy(void *mon);
1212 
1213 JNIEXPORT jint JNICALL
1214 JVM_RawMonitorEnter(void *mon);
1215 
1216 JNIEXPORT void JNICALL
1217 JVM_RawMonitorExit(void *mon);
1218 
1219 /*
1220  * java.lang.reflect.Method
1221  */
1222 JNIEXPORT jobject JNICALL
1223 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1224 
1225 /*
1226  * java.lang.reflect.Constructor
1227  */
1228 JNIEXPORT jobject JNICALL
1229 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1230 
1231 /*
1232  * java.lang.management support
1233  */
1234 JNIEXPORT void* JNICALL
1235 JVM_GetManagement(jint version);
1236 
1237 /*
1238  * com.sun.tools.attach.VirtualMachine support
1239  *
1240  * Initialize the agent properties with the properties maintained in the VM.
1241  */
1242 JNIEXPORT jobject JNICALL
1243 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1244 
1245 JNIEXPORT jstring JNICALL
1246 JVM_GetTemporaryDirectory(JNIEnv *env);
1247 
1248 /* Generics reflection support.
1249  *
1250  * Returns information about the given class's EnclosingMethod
1251  * attribute, if present, or null if the class had no enclosing
1252  * method.
1253  *
1254  * If non-null, the returned array contains three elements. Element 0
1255  * is the java.lang.Class of which the enclosing method is a member,
1256  * and elements 1 and 2 are the java.lang.Strings for the enclosing
1257  * method's name and descriptor, respectively.
1258  */
1259 JNIEXPORT jobjectArray JNICALL
1260 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1261 
1262 /* =========================================================================
1263  * The following defines a private JVM interface that the JDK can query
1264  * for the JVM version and capabilities.  sun.misc.Version defines
1265  * the methods for getting the VM version and its capabilities.
1266  *
1267  * When a new bit is added, the following should be updated to provide
1268  * access to the new capability:
1269  *    HS:   JVM_GetVersionInfo and Abstract_VM_Version class
1270  *    SDK:  Version class
1271  *
1272  * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1273  * JVM to query for the JDK version and capabilities.
1274  *
1275  * When a new bit is added, the following should be updated to provide
1276  * access to the new capability:
1277  *    HS:   JDK_Version class
1278  *    SDK:  JDK_GetVersionInfo0
1279  *
1280  * ==========================================================================
1281  */
1282 typedef struct {
1283     unsigned int jvm_version; /* Encoded $VNUM as defined by JEP-223 */
1284     unsigned int patch_version : 8; /* JEP-223 patch version */
1285     unsigned int reserved3 : 8;
1286     unsigned int reserved1 : 16;
1287     unsigned int reserved2;
1288 
1289     /* The following bits represents JVM supports that JDK has dependency on.
1290      * JDK can use these bits to determine which JVM version
1291      * and support it has to maintain runtime compatibility.
1292      *
1293      * When a new bit is added in a minor or update release, make sure
1294      * the new bit is also added in the main/baseline.
1295      */
1296     unsigned int is_attachable : 1;
1297     unsigned int : 31;
1298     unsigned int : 32;
1299     unsigned int : 32;
1300 } jvm_version_info;
1301 
1302 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1303 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1304 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1305 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1306 
1307 JNIEXPORT void JNICALL
1308 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1309 
1310 typedef struct {
1311     unsigned int jdk_version; /* Encoded $VNUM as defined by JEP-223 */
1312     unsigned int patch_version : 8; /* JEP-223 patch version */
1313     unsigned int reserved3 : 8;
1314     unsigned int reserved1 : 16;
1315     unsigned int reserved2;
1316 
1317     /* The following bits represents new JDK supports that VM has dependency on.
1318      * VM implementation can use these bits to determine which JDK version
1319      * and support it has to maintain runtime compatibility.
1320      *
1321      * When a new bit is added in a minor or update release, make sure
1322      * the new bit is also added in the main/baseline.
1323      */
1324     unsigned int thread_park_blocker : 1;
1325     unsigned int post_vm_init_hook_enabled : 1;
1326     unsigned int pending_list_uses_discovered_field : 1;
1327     unsigned int : 29;
1328     unsigned int : 32;
1329     unsigned int : 32;
1330 } jdk_version_info;
1331 
1332 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1333 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1334 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1335 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1336 
1337 /*
1338  * This is the function JDK_GetVersionInfo0 defined in libjava.so
1339  * that is dynamically looked up by JVM.
1340  */
1341 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1342 
1343 /*
1344  * This structure is used by the launcher to get the default thread
1345  * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1346  * version of 1.1.  As it is not supported otherwise, it has been removed
1347  * from jni.h
1348  */
1349 typedef struct JDK1_1InitArgs {
1350     jint version;
1351 
1352     char **properties;
1353     jint checkSource;
1354     jint nativeStackSize;
1355     jint javaStackSize;
1356     jint minHeapSize;
1357     jint maxHeapSize;
1358     jint verifyMode;
1359     char *classpath;
1360 
1361     jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1362     void (JNICALL *exit)(jint code);
1363     void (JNICALL *abort)(void);
1364 
1365     jint enableClassGC;
1366     jint enableVerboseGC;
1367     jint disableAsyncGC;
1368     jint verbose;
1369     jboolean debugging;
1370     jint debugPort;
1371 } JDK1_1InitArgs;
1372 
1373 #ifdef __cplusplus
1374 } /* extern "C" */
1375 #endif /* __cplusplus */
1376 
1377 #endif /* !_JAVASOFT_JVM_H_ */
1378 
1379 #endif // SHARE_VM_PRIMS_JVM_H
--- EOF ---