1 /* 2 * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef _JAVASOFT_JVM_H_ 27 #define _JAVASOFT_JVM_H_ 28 29 #include <sys/stat.h> 30 31 #include "jni.h" 32 #include "jvm_md.h" 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * This file contains additional functions exported from the VM. 40 * These functions are complementary to the standard JNI support. 41 * There are three parts to this file: 42 * 43 * First, this file contains the VM-related functions needed by native 44 * libraries in the standard Java API. For example, the java.lang.Object 45 * class needs VM-level functions that wait for and notify monitors. 46 * 47 * Second, this file contains the functions and constant definitions 48 * needed by the byte code verifier and class file format checker. 49 * These functions allow the verifier and format checker to be written 50 * in a VM-independent way. 51 * 52 * Third, this file contains various I/O and network operations needed 53 * by the standard Java I/O and network APIs. 54 */ 55 56 /* 57 * Bump the version number when either of the following happens: 58 * 59 * 1. There is a change in JVM_* functions. 60 * 61 * 2. There is a change in the contract between VM and Java classes. 62 * For example, if the VM relies on a new private field in Thread 63 * class. 64 */ 65 66 #define JVM_INTERFACE_VERSION 5 67 68 JNIEXPORT jint JNICALL 69 JVM_GetInterfaceVersion(void); 70 71 /************************************************************************* 72 PART 1: Functions for Native Libraries 73 ************************************************************************/ 74 /* 75 * java.lang.Object 76 */ 77 JNIEXPORT jint JNICALL 78 JVM_IHashCode(JNIEnv *env, jobject obj); 79 80 JNIEXPORT void JNICALL 81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms); 82 83 JNIEXPORT void JNICALL 84 JVM_MonitorNotify(JNIEnv *env, jobject obj); 85 86 JNIEXPORT void JNICALL 87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj); 88 89 JNIEXPORT jobject JNICALL 90 JVM_Clone(JNIEnv *env, jobject obj); 91 92 /* 93 * java.lang.String 94 */ 95 JNIEXPORT jstring JNICALL 96 JVM_InternString(JNIEnv *env, jstring str); 97 98 /* 99 * java.lang.System 100 */ 101 JNIEXPORT jlong JNICALL 102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored); 103 104 JNIEXPORT jlong JNICALL 105 JVM_NanoTime(JNIEnv *env, jclass ignored); 106 107 JNIEXPORT jlong JNICALL 108 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs); 109 110 JNIEXPORT void JNICALL 111 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos, 112 jobject dst, jint dst_pos, jint length); 113 114 JNIEXPORT jobject JNICALL 115 JVM_InitProperties(JNIEnv *env, jobject p); 116 117 118 /* 119 * java.lang.Runtime 120 */ 121 JNIEXPORT void JNICALL 122 JVM_BeforeHalt(); 123 124 JNIEXPORT void JNICALL 125 JVM_Halt(jint code); 126 127 JNIEXPORT void JNICALL 128 JVM_GC(void); 129 130 /* Returns the number of real-time milliseconds that have elapsed since the 131 * least-recently-inspected heap object was last inspected by the garbage 132 * collector. 133 * 134 * For simple stop-the-world collectors this value is just the time 135 * since the most recent collection. For generational collectors it is the 136 * time since the oldest generation was most recently collected. Other 137 * collectors are free to return a pessimistic estimate of the elapsed time, or 138 * simply the time since the last full collection was performed. 139 * 140 * Note that in the presence of reference objects, a given object that is no 141 * longer strongly reachable may have to be inspected multiple times before it 142 * can be reclaimed. 143 */ 144 JNIEXPORT jlong JNICALL 145 JVM_MaxObjectInspectionAge(void); 146 147 JNIEXPORT jlong JNICALL 148 JVM_TotalMemory(void); 149 150 JNIEXPORT jlong JNICALL 151 JVM_FreeMemory(void); 152 153 JNIEXPORT jlong JNICALL 154 JVM_MaxMemory(void); 155 156 JNIEXPORT jint JNICALL 157 JVM_ActiveProcessorCount(void); 158 159 JNIEXPORT void * JNICALL 160 JVM_LoadLibrary(const char *name); 161 162 JNIEXPORT void JNICALL 163 JVM_UnloadLibrary(void * handle); 164 165 JNIEXPORT void * JNICALL 166 JVM_FindLibraryEntry(void *handle, const char *name); 167 168 JNIEXPORT jboolean JNICALL 169 JVM_IsSupportedJNIVersion(jint version); 170 171 JNIEXPORT jobjectArray JNICALL 172 JVM_GetVmArguments(JNIEnv *env); 173 174 JNIEXPORT void JNICALL 175 JVM_InitializeFromArchive(JNIEnv* env, jclass cls); 176 177 /* 178 * java.lang.Throwable 179 */ 180 JNIEXPORT void JNICALL 181 JVM_FillInStackTrace(JNIEnv *env, jobject throwable); 182 183 /* 184 * java.lang.StackTraceElement 185 */ 186 JNIEXPORT void JNICALL 187 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable); 188 189 JNIEXPORT void JNICALL 190 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo); 191 192 /* 193 * java.lang.StackWalker 194 */ 195 enum { 196 JVM_STACKWALK_FILL_CLASS_REFS_ONLY = 0x2, 197 JVM_STACKWALK_GET_CALLER_CLASS = 0x04, 198 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20, 199 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100 200 }; 201 202 JNIEXPORT jobject JNICALL 203 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode, 204 jint skip_frames, jint frame_count, jint start_index, 205 jobjectArray frames); 206 207 JNIEXPORT jint JNICALL 208 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor, 209 jint frame_count, jint start_index, 210 jobjectArray frames); 211 212 /* 213 * java.lang.Thread 214 */ 215 JNIEXPORT void JNICALL 216 JVM_StartThread(JNIEnv *env, jobject thread); 217 218 JNIEXPORT void JNICALL 219 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception); 220 221 JNIEXPORT jboolean JNICALL 222 JVM_IsThreadAlive(JNIEnv *env, jobject thread); 223 224 JNIEXPORT void JNICALL 225 JVM_SuspendThread(JNIEnv *env, jobject thread); 226 227 JNIEXPORT void JNICALL 228 JVM_ResumeThread(JNIEnv *env, jobject thread); 229 230 JNIEXPORT void JNICALL 231 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio); 232 233 JNIEXPORT void JNICALL 234 JVM_Yield(JNIEnv *env, jclass threadClass); 235 236 JNIEXPORT void JNICALL 237 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis); 238 239 JNIEXPORT jobject JNICALL 240 JVM_CurrentThread(JNIEnv *env, jclass threadClass); 241 242 JNIEXPORT jint JNICALL 243 JVM_CountStackFrames(JNIEnv *env, jobject thread); 244 245 JNIEXPORT void JNICALL 246 JVM_Interrupt(JNIEnv *env, jobject thread); 247 248 JNIEXPORT jboolean JNICALL 249 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted); 250 251 JNIEXPORT jboolean JNICALL 252 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj); 253 254 JNIEXPORT void JNICALL 255 JVM_DumpAllStacks(JNIEnv *env, jclass unused); 256 257 JNIEXPORT jobjectArray JNICALL 258 JVM_GetAllThreads(JNIEnv *env, jclass dummy); 259 260 JNIEXPORT void JNICALL 261 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name); 262 263 /* getStackTrace() and getAllStackTraces() method */ 264 JNIEXPORT jobjectArray JNICALL 265 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads); 266 267 /* 268 * java.lang.SecurityManager 269 */ 270 JNIEXPORT jobjectArray JNICALL 271 JVM_GetClassContext(JNIEnv *env); 272 273 /* 274 * java.lang.Package 275 */ 276 JNIEXPORT jstring JNICALL 277 JVM_GetSystemPackage(JNIEnv *env, jstring name); 278 279 JNIEXPORT jobjectArray JNICALL 280 JVM_GetSystemPackages(JNIEnv *env); 281 282 /* 283 * java.lang.ref.Reference 284 */ 285 JNIEXPORT jobject JNICALL 286 JVM_GetAndClearReferencePendingList(JNIEnv *env); 287 288 JNIEXPORT jboolean JNICALL 289 JVM_HasReferencePendingList(JNIEnv *env); 290 291 JNIEXPORT void JNICALL 292 JVM_WaitForReferencePendingList(JNIEnv *env); 293 294 /* 295 * java.io.ObjectInputStream 296 */ 297 JNIEXPORT jobject JNICALL 298 JVM_LatestUserDefinedLoader(JNIEnv *env); 299 300 /* 301 * java.lang.reflect.Array 302 */ 303 JNIEXPORT jint JNICALL 304 JVM_GetArrayLength(JNIEnv *env, jobject arr); 305 306 JNIEXPORT jobject JNICALL 307 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index); 308 309 JNIEXPORT jvalue JNICALL 310 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode); 311 312 JNIEXPORT void JNICALL 313 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val); 314 315 JNIEXPORT void JNICALL 316 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, 317 unsigned char vCode); 318 319 JNIEXPORT jobject JNICALL 320 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length); 321 322 JNIEXPORT jobject JNICALL 323 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim); 324 325 326 /* 327 * Returns the immediate caller class of the native method invoking 328 * JVM_GetCallerClass. The Method.invoke and other frames due to 329 * reflection machinery are skipped. 330 * 331 * The caller is expected to be marked with 332 * jdk.internal.reflect.CallerSensitive. The JVM will throw an 333 * error if it is not marked properly. 334 */ 335 JNIEXPORT jclass JNICALL 336 JVM_GetCallerClass(JNIEnv *env); 337 338 339 /* 340 * Find primitive classes 341 * utf: class name 342 */ 343 JNIEXPORT jclass JNICALL 344 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf); 345 346 347 /* 348 * Find a class from a boot class loader. Returns NULL if class not found. 349 */ 350 JNIEXPORT jclass JNICALL 351 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name); 352 353 /* 354 * Find a class from a given class loader. Throws ClassNotFoundException. 355 * name: name of class 356 * init: whether initialization is done 357 * loader: class loader to look up the class. This may not be the same as the caller's 358 * class loader. 359 * caller: initiating class. The initiating class may be null when a security 360 * manager is not installed. 361 */ 362 JNIEXPORT jclass JNICALL 363 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init, 364 jobject loader, jclass caller); 365 366 /* 367 * Find a class from a given class. 368 */ 369 JNIEXPORT jclass JNICALL 370 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init, 371 jclass from); 372 373 /* Find a loaded class cached by the VM */ 374 JNIEXPORT jclass JNICALL 375 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name); 376 377 /* Define a class */ 378 JNIEXPORT jclass JNICALL 379 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, 380 jsize len, jobject pd); 381 382 /* Define a class with a source (added in JDK1.5) */ 383 JNIEXPORT jclass JNICALL 384 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, 385 const jbyte *buf, jsize len, jobject pd, 386 const char *source); 387 388 /* 389 * Module support funcions 390 */ 391 392 /* 393 * Define a module with the specified packages and bind the module to the 394 * given class loader. 395 * module: module to define 396 * is_open: specifies if module is open (currently ignored) 397 * version: the module version 398 * location: the module location 399 * packages: list of packages in the module 400 * num_packages: number of packages in the module 401 */ 402 JNIEXPORT void JNICALL 403 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version, 404 jstring location, const char* const* packages, jsize num_packages); 405 406 /* 407 * Set the boot loader's unnamed module. 408 * module: boot loader's unnamed module 409 */ 410 JNIEXPORT void JNICALL 411 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module); 412 413 /* 414 * Do a qualified export of a package. 415 * from_module: module containing the package to export 416 * package: name of the package to export 417 * to_module: module to export the package to 418 */ 419 JNIEXPORT void JNICALL 420 JVM_AddModuleExports(JNIEnv *env, jobject from_module, const char* package, jobject to_module); 421 422 /* 423 * Do an export of a package to all unnamed modules. 424 * from_module: module containing the package to export 425 * package: name of the package to export to all unnamed modules 426 */ 427 JNIEXPORT void JNICALL 428 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, const char* package); 429 430 /* 431 * Do an unqualified export of a package. 432 * from_module: module containing the package to export 433 * package: name of the package to export 434 */ 435 JNIEXPORT void JNICALL 436 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, const char* package); 437 438 /* 439 * Add a module to the list of modules that a given module can read. 440 * from_module: module requesting read access 441 * source_module: module that from_module wants to read 442 */ 443 JNIEXPORT void JNICALL 444 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module); 445 446 /* 447 * Reflection support functions 448 */ 449 450 JNIEXPORT jstring JNICALL 451 JVM_GetClassName(JNIEnv *env, jclass cls); 452 453 JNIEXPORT jobjectArray JNICALL 454 JVM_GetClassInterfaces(JNIEnv *env, jclass cls); 455 456 JNIEXPORT jboolean JNICALL 457 JVM_IsInterface(JNIEnv *env, jclass cls); 458 459 JNIEXPORT jobjectArray JNICALL 460 JVM_GetClassSigners(JNIEnv *env, jclass cls); 461 462 JNIEXPORT void JNICALL 463 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers); 464 465 JNIEXPORT jobject JNICALL 466 JVM_GetProtectionDomain(JNIEnv *env, jclass cls); 467 468 JNIEXPORT jboolean JNICALL 469 JVM_IsArrayClass(JNIEnv *env, jclass cls); 470 471 JNIEXPORT jboolean JNICALL 472 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls); 473 474 JNIEXPORT jint JNICALL 475 JVM_GetClassModifiers(JNIEnv *env, jclass cls); 476 477 JNIEXPORT jobjectArray JNICALL 478 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass); 479 480 JNIEXPORT jclass JNICALL 481 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass); 482 483 JNIEXPORT jstring JNICALL 484 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass); 485 486 /* Generics support (JDK 1.5) */ 487 JNIEXPORT jstring JNICALL 488 JVM_GetClassSignature(JNIEnv *env, jclass cls); 489 490 /* Annotations support (JDK 1.5) */ 491 JNIEXPORT jbyteArray JNICALL 492 JVM_GetClassAnnotations(JNIEnv *env, jclass cls); 493 494 /* Type use annotations support (JDK 1.8) */ 495 496 JNIEXPORT jbyteArray JNICALL 497 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls); 498 499 JNIEXPORT jbyteArray JNICALL 500 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field); 501 502 JNIEXPORT jbyteArray JNICALL 503 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method); 504 505 /* 506 * New (JDK 1.4) reflection implementation 507 */ 508 509 JNIEXPORT jobjectArray JNICALL 510 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly); 511 512 JNIEXPORT jobjectArray JNICALL 513 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly); 514 515 JNIEXPORT jobjectArray JNICALL 516 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly); 517 518 /* Differs from JVM_GetClassModifiers in treatment of inner classes. 519 This returns the access flags for the class as specified in the 520 class file rather than searching the InnerClasses attribute (if 521 present) to find the source-level access flags. Only the values of 522 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be 523 valid. */ 524 JNIEXPORT jint JNICALL 525 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls); 526 527 /* Nestmates - since JDK 11 */ 528 529 JNIEXPORT jboolean JNICALL 530 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member); 531 532 JNIEXPORT jclass JNICALL 533 JVM_GetNestHost(JNIEnv *env, jclass current); 534 535 JNIEXPORT jobjectArray JNICALL 536 JVM_GetNestMembers(JNIEnv *env, jclass current); 537 538 /* The following two reflection routines are still needed due to startup time issues */ 539 /* 540 * java.lang.reflect.Method 541 */ 542 JNIEXPORT jobject JNICALL 543 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 544 545 /* 546 * java.lang.reflect.Constructor 547 */ 548 JNIEXPORT jobject JNICALL 549 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 550 551 /* 552 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5) 553 */ 554 555 JNIEXPORT jobject JNICALL 556 JVM_GetClassConstantPool(JNIEnv *env, jclass cls); 557 558 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize 559 (JNIEnv *env, jobject unused, jobject jcpool); 560 561 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt 562 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 563 564 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded 565 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 566 567 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt 568 (JNIEnv *env, jobject obj, jobject unused, jint index); 569 570 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt 571 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 572 573 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded 574 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 575 576 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt 577 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 578 579 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded 580 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 581 582 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt 583 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 584 585 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt 586 (JNIEnv *env, jobject obj, jobject unused, jint index); 587 588 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt 589 (JNIEnv *env, jobject obj, jobject unused, jint index); 590 591 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt 592 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 593 594 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt 595 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 596 597 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt 598 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 599 600 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt 601 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 602 603 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt 604 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 605 606 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At 607 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 608 609 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt 610 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 611 612 /* 613 * Parameter reflection 614 */ 615 616 JNIEXPORT jobjectArray JNICALL 617 JVM_GetMethodParameters(JNIEnv *env, jobject method); 618 619 /* 620 * java.security.* 621 */ 622 623 JNIEXPORT jobject JNICALL 624 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls); 625 626 JNIEXPORT jobject JNICALL 627 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls); 628 629 /* 630 * Signal support, used to implement the shutdown sequence. Every VM must 631 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts 632 * (^C) and the latter for external termination (kill, system shutdown, etc.). 633 * Other platform-dependent signal values may also be supported. 634 */ 635 636 JNIEXPORT void * JNICALL 637 JVM_RegisterSignal(jint sig, void *handler); 638 639 JNIEXPORT jboolean JNICALL 640 JVM_RaiseSignal(jint sig); 641 642 JNIEXPORT jint JNICALL 643 JVM_FindSignal(const char *name); 644 645 /* 646 * Retrieve the assertion directives for the specified class. 647 */ 648 JNIEXPORT jboolean JNICALL 649 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls); 650 651 /* 652 * Retrieve the assertion directives from the VM. 653 */ 654 JNIEXPORT jobject JNICALL 655 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused); 656 657 /* 658 * java.util.concurrent.atomic.AtomicLong 659 */ 660 JNIEXPORT jboolean JNICALL 661 JVM_SupportsCX8(void); 662 663 /* 664 * com.sun.dtrace.jsdt support 665 */ 666 667 #define JVM_TRACING_DTRACE_VERSION 1 668 669 /* 670 * Structure to pass one probe description to JVM 671 */ 672 typedef struct { 673 jmethodID method; 674 jstring function; 675 jstring name; 676 void* reserved[4]; // for future use 677 } JVM_DTraceProbe; 678 679 /** 680 * Encapsulates the stability ratings for a DTrace provider field 681 */ 682 typedef struct { 683 jint nameStability; 684 jint dataStability; 685 jint dependencyClass; 686 } JVM_DTraceInterfaceAttributes; 687 688 /* 689 * Structure to pass one provider description to JVM 690 */ 691 typedef struct { 692 jstring name; 693 JVM_DTraceProbe* probes; 694 jint probe_count; 695 JVM_DTraceInterfaceAttributes providerAttributes; 696 JVM_DTraceInterfaceAttributes moduleAttributes; 697 JVM_DTraceInterfaceAttributes functionAttributes; 698 JVM_DTraceInterfaceAttributes nameAttributes; 699 JVM_DTraceInterfaceAttributes argsAttributes; 700 void* reserved[4]; // for future use 701 } JVM_DTraceProvider; 702 703 /* 704 * Get the version number the JVM was built with 705 */ 706 JNIEXPORT jint JNICALL 707 JVM_DTraceGetVersion(JNIEnv* env); 708 709 /* 710 * Register new probe with given signature, return global handle 711 * 712 * The version passed in is the version that the library code was 713 * built with. 714 */ 715 JNIEXPORT jlong JNICALL 716 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name, 717 jint providers_count, JVM_DTraceProvider* providers); 718 719 /* 720 * Check JSDT probe 721 */ 722 JNIEXPORT jboolean JNICALL 723 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method); 724 725 /* 726 * Destroy custom DOF 727 */ 728 JNIEXPORT void JNICALL 729 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle); 730 731 /* 732 * Check to see if DTrace is supported by OS 733 */ 734 JNIEXPORT jboolean JNICALL 735 JVM_DTraceIsSupported(JNIEnv* env); 736 737 /************************************************************************* 738 PART 2: Support for the Verifier and Class File Format Checker 739 ************************************************************************/ 740 /* 741 * Return the class name in UTF format. The result is valid 742 * until JVM_ReleaseUTf is called. 743 * 744 * The caller must treat the string as a constant and not modify it 745 * in any way. 746 */ 747 JNIEXPORT const char * JNICALL 748 JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 749 750 /* 751 * Returns the constant pool types in the buffer provided by "types." 752 */ 753 JNIEXPORT void JNICALL 754 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 755 756 /* 757 * Returns the number of Constant Pool entries. 758 */ 759 JNIEXPORT jint JNICALL 760 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 761 762 /* 763 * Returns the number of *declared* fields or methods. 764 */ 765 JNIEXPORT jint JNICALL 766 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 767 768 JNIEXPORT jint JNICALL 769 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 770 771 /* 772 * Returns the CP indexes of exceptions raised by a given method. 773 * Places the result in the given buffer. 774 * 775 * The method is identified by method_index. 776 */ 777 JNIEXPORT void JNICALL 778 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 779 unsigned short *exceptions); 780 /* 781 * Returns the number of exceptions raised by a given method. 782 * The method is identified by method_index. 783 */ 784 JNIEXPORT jint JNICALL 785 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 786 787 /* 788 * Returns the byte code sequence of a given method. 789 * Places the result in the given buffer. 790 * 791 * The method is identified by method_index. 792 */ 793 JNIEXPORT void JNICALL 794 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 795 unsigned char *code); 796 797 /* 798 * Returns the length of the byte code sequence of a given method. 799 * The method is identified by method_index. 800 */ 801 JNIEXPORT jint JNICALL 802 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 803 804 /* 805 * A structure used to a capture exception table entry in a Java method. 806 */ 807 typedef struct { 808 jint start_pc; 809 jint end_pc; 810 jint handler_pc; 811 jint catchType; 812 } JVM_ExceptionTableEntryType; 813 814 /* 815 * Returns the exception table entry at entry_index of a given method. 816 * Places the result in the given buffer. 817 * 818 * The method is identified by method_index. 819 */ 820 JNIEXPORT void JNICALL 821 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 822 jint entry_index, 823 JVM_ExceptionTableEntryType *entry); 824 825 /* 826 * Returns the length of the exception table of a given method. 827 * The method is identified by method_index. 828 */ 829 JNIEXPORT jint JNICALL 830 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 831 832 /* 833 * Returns the modifiers of a given field. 834 * The field is identified by field_index. 835 */ 836 JNIEXPORT jint JNICALL 837 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 838 839 /* 840 * Returns the modifiers of a given method. 841 * The method is identified by method_index. 842 */ 843 JNIEXPORT jint JNICALL 844 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 845 846 /* 847 * Returns the number of local variables of a given method. 848 * The method is identified by method_index. 849 */ 850 JNIEXPORT jint JNICALL 851 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 852 853 /* 854 * Returns the number of arguments (including this pointer) of a given method. 855 * The method is identified by method_index. 856 */ 857 JNIEXPORT jint JNICALL 858 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 859 860 /* 861 * Returns the maximum amount of stack (in words) used by a given method. 862 * The method is identified by method_index. 863 */ 864 JNIEXPORT jint JNICALL 865 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 866 867 /* 868 * Is a given method a constructor. 869 * The method is identified by method_index. 870 */ 871 JNIEXPORT jboolean JNICALL 872 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 873 874 /* 875 * Is the given method generated by the VM. 876 * The method is identified by method_index. 877 */ 878 JNIEXPORT jboolean JNICALL 879 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index); 880 881 /* 882 * Returns the name of a given method in UTF format. 883 * The result remains valid until JVM_ReleaseUTF is called. 884 * 885 * The caller must treat the string as a constant and not modify it 886 * in any way. 887 */ 888 JNIEXPORT const char * JNICALL 889 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 890 891 /* 892 * Returns the signature of a given method in UTF format. 893 * The result remains valid until JVM_ReleaseUTF is called. 894 * 895 * The caller must treat the string as a constant and not modify it 896 * in any way. 897 */ 898 JNIEXPORT const char * JNICALL 899 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 900 901 /* 902 * Returns the name of the field referred to at a given constant pool 903 * index. 904 * 905 * The result is in UTF format and remains valid until JVM_ReleaseUTF 906 * is called. 907 * 908 * The caller must treat the string as a constant and not modify it 909 * in any way. 910 */ 911 JNIEXPORT const char * JNICALL 912 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 913 914 /* 915 * Returns the name of the method referred to at a given constant pool 916 * index. 917 * 918 * The result is in UTF format and remains valid until JVM_ReleaseUTF 919 * is called. 920 * 921 * The caller must treat the string as a constant and not modify it 922 * in any way. 923 */ 924 JNIEXPORT const char * JNICALL 925 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 926 927 /* 928 * Returns the signature of the method referred to at a given constant pool 929 * index. 930 * 931 * The result is in UTF format and remains valid until JVM_ReleaseUTF 932 * is called. 933 * 934 * The caller must treat the string as a constant and not modify it 935 * in any way. 936 */ 937 JNIEXPORT const char * JNICALL 938 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 939 940 /* 941 * Returns the signature of the field referred to at a given constant pool 942 * index. 943 * 944 * The result is in UTF format and remains valid until JVM_ReleaseUTF 945 * is called. 946 * 947 * The caller must treat the string as a constant and not modify it 948 * in any way. 949 */ 950 JNIEXPORT const char * JNICALL 951 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 952 953 /* 954 * Returns the class name referred to at a given constant pool index. 955 * 956 * The result is in UTF format and remains valid until JVM_ReleaseUTF 957 * is called. 958 * 959 * The caller must treat the string as a constant and not modify it 960 * in any way. 961 */ 962 JNIEXPORT const char * JNICALL 963 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 964 965 /* 966 * Returns the class name referred to at a given constant pool index. 967 * 968 * The constant pool entry must refer to a CONSTANT_Fieldref. 969 * 970 * The result is in UTF format and remains valid until JVM_ReleaseUTF 971 * is called. 972 * 973 * The caller must treat the string as a constant and not modify it 974 * in any way. 975 */ 976 JNIEXPORT const char * JNICALL 977 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 978 979 /* 980 * Returns the class name referred to at a given constant pool index. 981 * 982 * The constant pool entry must refer to CONSTANT_Methodref or 983 * CONSTANT_InterfaceMethodref. 984 * 985 * The result is in UTF format and remains valid until JVM_ReleaseUTF 986 * is called. 987 * 988 * The caller must treat the string as a constant and not modify it 989 * in any way. 990 */ 991 JNIEXPORT const char * JNICALL 992 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 993 994 /* 995 * Returns the modifiers of a field in calledClass. The field is 996 * referred to in class cb at constant pool entry index. 997 * 998 * The caller must treat the string as a constant and not modify it 999 * in any way. 1000 * 1001 * Returns -1 if the field does not exist in calledClass. 1002 */ 1003 JNIEXPORT jint JNICALL 1004 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 1005 1006 /* 1007 * Returns the modifiers of a method in calledClass. The method is 1008 * referred to in class cb at constant pool entry index. 1009 * 1010 * Returns -1 if the method does not exist in calledClass. 1011 */ 1012 JNIEXPORT jint JNICALL 1013 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 1014 1015 /* 1016 * Releases the UTF string obtained from the VM. 1017 */ 1018 JNIEXPORT void JNICALL 1019 JVM_ReleaseUTF(const char *utf); 1020 1021 /* 1022 * Compare if two classes are in the same package. 1023 */ 1024 JNIEXPORT jboolean JNICALL 1025 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 1026 1027 /* Get classfile constants */ 1028 #include "classfile_constants.h" 1029 1030 /* 1031 * A function defined by the byte-code verifier and called by the VM. 1032 * This is not a function implemented in the VM. 1033 * 1034 * Returns JNI_FALSE if verification fails. A detailed error message 1035 * will be places in msg_buf, whose length is specified by buf_len. 1036 */ 1037 typedef jboolean (*verifier_fn_t)(JNIEnv *env, 1038 jclass cb, 1039 char * msg_buf, 1040 jint buf_len); 1041 1042 1043 /* 1044 * Support for a VM-independent class format checker. 1045 */ 1046 typedef struct { 1047 unsigned long code; /* byte code */ 1048 unsigned long excs; /* exceptions */ 1049 unsigned long etab; /* catch table */ 1050 unsigned long lnum; /* line number */ 1051 unsigned long lvar; /* local vars */ 1052 } method_size_info; 1053 1054 typedef struct { 1055 unsigned int constants; /* constant pool */ 1056 unsigned int fields; 1057 unsigned int methods; 1058 unsigned int interfaces; 1059 unsigned int fields2; /* number of static 2-word fields */ 1060 unsigned int innerclasses; /* # of records in InnerClasses attr */ 1061 1062 method_size_info clinit; /* memory used in clinit */ 1063 method_size_info main; /* used everywhere else */ 1064 } class_size_info; 1065 1066 /* 1067 * Functions defined in libjava.so to perform string conversions. 1068 * 1069 */ 1070 1071 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str); 1072 1073 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b); 1074 1075 /* This is the function defined in libjava.so that performs class 1076 * format checks. This functions fills in size information about 1077 * the class file and returns: 1078 * 1079 * 0: good 1080 * -1: out of memory 1081 * -2: bad format 1082 * -3: unsupported version 1083 * -4: bad class name 1084 */ 1085 1086 typedef jint (*check_format_fn_t)(char *class_name, 1087 unsigned char *data, 1088 unsigned int data_size, 1089 class_size_info *class_size, 1090 char *message_buffer, 1091 jint buffer_length, 1092 jboolean measure_only, 1093 jboolean check_relaxed); 1094 1095 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \ 1096 JVM_ACC_FINAL | \ 1097 JVM_ACC_SUPER | \ 1098 JVM_ACC_INTERFACE | \ 1099 JVM_ACC_ABSTRACT | \ 1100 JVM_ACC_ANNOTATION | \ 1101 JVM_ACC_ENUM | \ 1102 JVM_ACC_SYNTHETIC) 1103 1104 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \ 1105 JVM_ACC_PRIVATE | \ 1106 JVM_ACC_PROTECTED | \ 1107 JVM_ACC_STATIC | \ 1108 JVM_ACC_FINAL | \ 1109 JVM_ACC_VOLATILE | \ 1110 JVM_ACC_TRANSIENT | \ 1111 JVM_ACC_ENUM | \ 1112 JVM_ACC_SYNTHETIC) 1113 1114 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \ 1115 JVM_ACC_PRIVATE | \ 1116 JVM_ACC_PROTECTED | \ 1117 JVM_ACC_STATIC | \ 1118 JVM_ACC_FINAL | \ 1119 JVM_ACC_SYNCHRONIZED | \ 1120 JVM_ACC_BRIDGE | \ 1121 JVM_ACC_VARARGS | \ 1122 JVM_ACC_NATIVE | \ 1123 JVM_ACC_ABSTRACT | \ 1124 JVM_ACC_STRICT | \ 1125 JVM_ACC_SYNTHETIC) 1126 1127 /* 1128 * This is the function defined in libjava.so to perform path 1129 * canonicalization. VM call this function before opening jar files 1130 * to load system classes. 1131 * 1132 */ 1133 1134 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len); 1135 1136 /************************************************************************* 1137 PART 3: I/O and Network Support 1138 ************************************************************************/ 1139 1140 /* 1141 * Convert a pathname into native format. This function does syntactic 1142 * cleanup, such as removing redundant separator characters. It modifies 1143 * the given pathname string in place. 1144 */ 1145 JNIEXPORT char * JNICALL 1146 JVM_NativePath(char *); 1147 1148 /* 1149 * The standard printing functions supported by the Java VM. (Should they 1150 * be renamed to JVM_* in the future? 1151 */ 1152 1153 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3), 1154 * respectively, with the following differences: 1155 * - The string written to str is always zero-terminated, also in case of 1156 * truncation (count is too small to hold the result string), unless count 1157 * is 0. In case of truncation count-1 characters are written and '\0' 1158 * appendend. 1159 * - If count is too small to hold the whole string, -1 is returned across 1160 * all platforms. */ 1161 1162 JNIEXPORT int 1163 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1164 1165 JNIEXPORT int 1166 jio_snprintf(char *str, size_t count, const char *fmt, ...); 1167 1168 JNIEXPORT int 1169 jio_fprintf(FILE *, const char *fmt, ...); 1170 1171 JNIEXPORT int 1172 jio_vfprintf(FILE *, const char *fmt, va_list args); 1173 1174 1175 JNIEXPORT void * JNICALL 1176 JVM_RawMonitorCreate(void); 1177 1178 JNIEXPORT void JNICALL 1179 JVM_RawMonitorDestroy(void *mon); 1180 1181 JNIEXPORT jint JNICALL 1182 JVM_RawMonitorEnter(void *mon); 1183 1184 JNIEXPORT void JNICALL 1185 JVM_RawMonitorExit(void *mon); 1186 1187 /* 1188 * java.lang.management support 1189 */ 1190 JNIEXPORT void* JNICALL 1191 JVM_GetManagement(jint version); 1192 1193 /* 1194 * com.sun.tools.attach.VirtualMachine support 1195 * 1196 * Initialize the agent properties with the properties maintained in the VM. 1197 */ 1198 JNIEXPORT jobject JNICALL 1199 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props); 1200 1201 JNIEXPORT jstring JNICALL 1202 JVM_GetTemporaryDirectory(JNIEnv *env); 1203 1204 /* Generics reflection support. 1205 * 1206 * Returns information about the given class's EnclosingMethod 1207 * attribute, if present, or null if the class had no enclosing 1208 * method. 1209 * 1210 * If non-null, the returned array contains three elements. Element 0 1211 * is the java.lang.Class of which the enclosing method is a member, 1212 * and elements 1 and 2 are the java.lang.Strings for the enclosing 1213 * method's name and descriptor, respectively. 1214 */ 1215 JNIEXPORT jobjectArray JNICALL 1216 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass); 1217 1218 /* ========================================================================= 1219 * The following defines a private JVM interface that the JDK can query 1220 * for the JVM version and capabilities. sun.misc.Version defines 1221 * the methods for getting the VM version and its capabilities. 1222 * 1223 * When a new bit is added, the following should be updated to provide 1224 * access to the new capability: 1225 * HS: JVM_GetVersionInfo and Abstract_VM_Version class 1226 * SDK: Version class 1227 * 1228 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for 1229 * JVM to query for the JDK version and capabilities. 1230 * 1231 * When a new bit is added, the following should be updated to provide 1232 * access to the new capability: 1233 * HS: JDK_Version class 1234 * SDK: JDK_GetVersionInfo0 1235 * 1236 * ========================================================================== 1237 */ 1238 typedef struct { 1239 unsigned int jvm_version; /* Encoded $VNUM as specified by JEP-223 */ 1240 unsigned int patch_version : 8; /* JEP-223 patch version */ 1241 unsigned int reserved3 : 8; 1242 unsigned int reserved1 : 16; 1243 unsigned int reserved2; 1244 1245 /* The following bits represents JVM supports that JDK has dependency on. 1246 * JDK can use these bits to determine which JVM version 1247 * and support it has to maintain runtime compatibility. 1248 * 1249 * When a new bit is added in a minor or update release, make sure 1250 * the new bit is also added in the main/baseline. 1251 */ 1252 unsigned int is_attach_supported : 1; 1253 unsigned int : 31; 1254 unsigned int : 32; 1255 unsigned int : 32; 1256 } jvm_version_info; 1257 1258 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1259 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1260 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8) 1261 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF)) 1262 1263 JNIEXPORT void JNICALL 1264 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size); 1265 1266 typedef struct { 1267 unsigned int jdk_version; /* Encoded $VNUM as specified by JEP-223 */ 1268 unsigned int patch_version : 8; /* JEP-223 patch version */ 1269 unsigned int reserved3 : 8; 1270 unsigned int reserved1 : 16; 1271 unsigned int reserved2; 1272 1273 /* The following bits represents new JDK supports that VM has dependency on. 1274 * VM implementation can use these bits to determine which JDK version 1275 * and support it has to maintain runtime compatibility. 1276 * 1277 * When a new bit is added in a minor or update release, make sure 1278 * the new bit is also added in the main/baseline. 1279 */ 1280 unsigned int thread_park_blocker : 1; 1281 unsigned int post_vm_init_hook_enabled : 1; 1282 unsigned int pending_list_uses_discovered_field : 1; 1283 unsigned int : 29; 1284 unsigned int : 32; 1285 unsigned int : 32; 1286 } jdk_version_info; 1287 1288 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1289 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1290 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8) 1291 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF)) 1292 1293 /* 1294 * This is the function JDK_GetVersionInfo0 defined in libjava.so 1295 * that is dynamically looked up by JVM. 1296 */ 1297 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size); 1298 1299 /* 1300 * This structure is used by the launcher to get the default thread 1301 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a 1302 * version of 1.1. As it is not supported otherwise, it has been removed 1303 * from jni.h 1304 */ 1305 typedef struct JDK1_1InitArgs { 1306 jint version; 1307 1308 char **properties; 1309 jint checkSource; 1310 jint nativeStackSize; 1311 jint javaStackSize; 1312 jint minHeapSize; 1313 jint maxHeapSize; 1314 jint verifyMode; 1315 char *classpath; 1316 1317 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args); 1318 void (JNICALL *exit)(jint code); 1319 void (JNICALL *abort)(void); 1320 1321 jint enableClassGC; 1322 jint enableVerboseGC; 1323 jint disableAsyncGC; 1324 jint verbose; 1325 jboolean debugging; 1326 jint debugPort; 1327 } JDK1_1InitArgs; 1328 1329 1330 #ifdef __cplusplus 1331 } /* extern "C" */ 1332 1333 #endif /* __cplusplus */ 1334 1335 #endif /* !_JAVASOFT_JVM_H_ */