1 /* 2 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef _JAVASOFT_JVM_H_ 27 #define _JAVASOFT_JVM_H_ 28 29 #include <sys/stat.h> 30 31 #include "jni.h" 32 #include "jvm_md.h" 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * This file contains additional functions exported from the VM. 40 * These functions are complementary to the standard JNI support. 41 * There are three parts to this file: 42 * 43 * First, this file contains the VM-related functions needed by native 44 * libraries in the standard Java API. For example, the java.lang.Object 45 * class needs VM-level functions that wait for and notify monitors. 46 * 47 * Second, this file contains the functions and constant definitions 48 * needed by the byte code verifier and class file format checker. 49 * These functions allow the verifier and format checker to be written 50 * in a VM-independent way. 51 * 52 * Third, this file contains various I/O and network operations needed 53 * by the standard Java I/O and network APIs. 54 */ 55 56 /* 57 * Bump the version number when either of the following happens: 58 * 59 * 1. There is a change in JVM_* functions. 60 * 61 * 2. There is a change in the contract between VM and Java classes. 62 * For example, if the VM relies on a new private field in Thread 63 * class. 64 */ 65 66 #define JVM_INTERFACE_VERSION 6 67 68 JNIEXPORT jint JNICALL 69 JVM_GetInterfaceVersion(void); 70 71 /************************************************************************* 72 PART 1: Functions for Native Libraries 73 ************************************************************************/ 74 /* 75 * java.lang.Object 76 */ 77 JNIEXPORT jint JNICALL 78 JVM_IHashCode(JNIEnv *env, jobject obj); 79 80 JNIEXPORT void JNICALL 81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms); 82 83 JNIEXPORT void JNICALL 84 JVM_MonitorNotify(JNIEnv *env, jobject obj); 85 86 JNIEXPORT void JNICALL 87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj); 88 89 JNIEXPORT jobject JNICALL 90 JVM_Clone(JNIEnv *env, jobject obj); 91 92 /* 93 * java.lang.String 94 */ 95 JNIEXPORT jstring JNICALL 96 JVM_InternString(JNIEnv *env, jstring str); 97 98 /* 99 * java.lang.System 100 */ 101 JNIEXPORT jlong JNICALL 102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored); 103 104 JNIEXPORT jlong JNICALL 105 JVM_NanoTime(JNIEnv *env, jclass ignored); 106 107 JNIEXPORT jlong JNICALL 108 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs); 109 110 JNIEXPORT void JNICALL 111 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos, 112 jobject dst, jint dst_pos, jint length); 113 114 /* 115 * Return an array of all properties as alternating name and value pairs. 116 */ 117 JNIEXPORT jobjectArray JNICALL 118 JVM_GetProperties(JNIEnv *env); 119 120 /* 121 * java.lang.Runtime 122 */ 123 JNIEXPORT void JNICALL 124 JVM_BeforeHalt(); 125 126 JNIEXPORT void JNICALL 127 JVM_Halt(jint code); 128 129 JNIEXPORT void JNICALL 130 JVM_GC(void); 131 132 /* Returns the number of real-time milliseconds that have elapsed since the 133 * least-recently-inspected heap object was last inspected by the garbage 134 * collector. 135 * 136 * For simple stop-the-world collectors this value is just the time 137 * since the most recent collection. For generational collectors it is the 138 * time since the oldest generation was most recently collected. Other 139 * collectors are free to return a pessimistic estimate of the elapsed time, or 140 * simply the time since the last full collection was performed. 141 * 142 * Note that in the presence of reference objects, a given object that is no 143 * longer strongly reachable may have to be inspected multiple times before it 144 * can be reclaimed. 145 */ 146 JNIEXPORT jlong JNICALL 147 JVM_MaxObjectInspectionAge(void); 148 149 JNIEXPORT jlong JNICALL 150 JVM_TotalMemory(void); 151 152 JNIEXPORT jlong JNICALL 153 JVM_FreeMemory(void); 154 155 JNIEXPORT jlong JNICALL 156 JVM_MaxMemory(void); 157 158 JNIEXPORT jint JNICALL 159 JVM_ActiveProcessorCount(void); 160 161 JNIEXPORT void * JNICALL 162 JVM_LoadLibrary(const char *name); 163 164 JNIEXPORT void JNICALL 165 JVM_UnloadLibrary(void * handle); 166 167 JNIEXPORT void * JNICALL 168 JVM_FindLibraryEntry(void *handle, const char *name); 169 170 JNIEXPORT jboolean JNICALL 171 JVM_IsSupportedJNIVersion(jint version); 172 173 JNIEXPORT jobjectArray JNICALL 174 JVM_GetVmArguments(JNIEnv *env); 175 176 JNIEXPORT void JNICALL 177 JVM_InitializeFromArchive(JNIEnv* env, jclass cls); 178 179 /* 180 * java.lang.Throwable 181 */ 182 JNIEXPORT void JNICALL 183 JVM_FillInStackTrace(JNIEnv *env, jobject throwable); 184 185 /* 186 * java.lang.StackTraceElement 187 */ 188 JNIEXPORT void JNICALL 189 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable); 190 191 JNIEXPORT void JNICALL 192 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo); 193 194 /* 195 * java.lang.StackWalker 196 */ 197 enum { 198 JVM_STACKWALK_FILL_CLASS_REFS_ONLY = 0x2, 199 JVM_STACKWALK_GET_CALLER_CLASS = 0x04, 200 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20, 201 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100 202 }; 203 204 JNIEXPORT jobject JNICALL 205 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode, 206 jint skip_frames, jint frame_count, jint start_index, 207 jobjectArray frames); 208 209 JNIEXPORT jint JNICALL 210 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor, 211 jint frame_count, jint start_index, 212 jobjectArray frames); 213 214 /* 215 * java.lang.Thread 216 */ 217 JNIEXPORT void JNICALL 218 JVM_StartThread(JNIEnv *env, jobject thread); 219 220 JNIEXPORT void JNICALL 221 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception); 222 223 JNIEXPORT jboolean JNICALL 224 JVM_IsThreadAlive(JNIEnv *env, jobject thread); 225 226 JNIEXPORT void JNICALL 227 JVM_SuspendThread(JNIEnv *env, jobject thread); 228 229 JNIEXPORT void JNICALL 230 JVM_ResumeThread(JNIEnv *env, jobject thread); 231 232 JNIEXPORT void JNICALL 233 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio); 234 235 JNIEXPORT void JNICALL 236 JVM_Yield(JNIEnv *env, jclass threadClass); 237 238 JNIEXPORT void JNICALL 239 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis); 240 241 JNIEXPORT jobject JNICALL 242 JVM_CurrentThread(JNIEnv *env, jclass threadClass); 243 244 JNIEXPORT jint JNICALL 245 JVM_CountStackFrames(JNIEnv *env, jobject thread); 246 247 JNIEXPORT void JNICALL 248 JVM_Interrupt(JNIEnv *env, jobject thread); 249 250 JNIEXPORT jboolean JNICALL 251 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted); 252 253 JNIEXPORT jboolean JNICALL 254 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj); 255 256 JNIEXPORT void JNICALL 257 JVM_DumpAllStacks(JNIEnv *env, jclass unused); 258 259 JNIEXPORT jobjectArray JNICALL 260 JVM_GetAllThreads(JNIEnv *env, jclass dummy); 261 262 JNIEXPORT void JNICALL 263 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name); 264 265 /* getStackTrace() and getAllStackTraces() method */ 266 JNIEXPORT jobjectArray JNICALL 267 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads); 268 269 /* 270 * java.lang.SecurityManager 271 */ 272 JNIEXPORT jobjectArray JNICALL 273 JVM_GetClassContext(JNIEnv *env); 274 275 /* 276 * java.lang.Package 277 */ 278 JNIEXPORT jstring JNICALL 279 JVM_GetSystemPackage(JNIEnv *env, jstring name); 280 281 JNIEXPORT jobjectArray JNICALL 282 JVM_GetSystemPackages(JNIEnv *env); 283 284 /* 285 * java.lang.ref.Reference 286 */ 287 JNIEXPORT jobject JNICALL 288 JVM_GetAndClearReferencePendingList(JNIEnv *env); 289 290 JNIEXPORT jboolean JNICALL 291 JVM_HasReferencePendingList(JNIEnv *env); 292 293 JNIEXPORT void JNICALL 294 JVM_WaitForReferencePendingList(JNIEnv *env); 295 296 /* 297 * java.io.ObjectInputStream 298 */ 299 JNIEXPORT jobject JNICALL 300 JVM_LatestUserDefinedLoader(JNIEnv *env); 301 302 /* 303 * java.lang.reflect.Array 304 */ 305 JNIEXPORT jint JNICALL 306 JVM_GetArrayLength(JNIEnv *env, jobject arr); 307 308 JNIEXPORT jobject JNICALL 309 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index); 310 311 JNIEXPORT jvalue JNICALL 312 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode); 313 314 JNIEXPORT void JNICALL 315 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val); 316 317 JNIEXPORT void JNICALL 318 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, 319 unsigned char vCode); 320 321 JNIEXPORT jobject JNICALL 322 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length); 323 324 JNIEXPORT jobject JNICALL 325 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim); 326 327 328 /* 329 * Returns the immediate caller class of the native method invoking 330 * JVM_GetCallerClass. The Method.invoke and other frames due to 331 * reflection machinery are skipped. 332 * 333 * The caller is expected to be marked with 334 * jdk.internal.reflect.CallerSensitive. The JVM will throw an 335 * error if it is not marked properly. 336 */ 337 JNIEXPORT jclass JNICALL 338 JVM_GetCallerClass(JNIEnv *env); 339 340 341 /* 342 * Find primitive classes 343 * utf: class name 344 */ 345 JNIEXPORT jclass JNICALL 346 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf); 347 348 349 /* 350 * Find a class from a boot class loader. Returns NULL if class not found. 351 */ 352 JNIEXPORT jclass JNICALL 353 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name); 354 355 /* 356 * Find a class from a given class loader. Throws ClassNotFoundException. 357 * name: name of class 358 * init: whether initialization is done 359 * loader: class loader to look up the class. This may not be the same as the caller's 360 * class loader. 361 * caller: initiating class. The initiating class may be null when a security 362 * manager is not installed. 363 */ 364 JNIEXPORT jclass JNICALL 365 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init, 366 jobject loader, jclass caller); 367 368 /* 369 * Find a class from a given class. 370 */ 371 JNIEXPORT jclass JNICALL 372 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init, 373 jclass from); 374 375 /* Find a loaded class cached by the VM */ 376 JNIEXPORT jclass JNICALL 377 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name); 378 379 /* Define a class */ 380 JNIEXPORT jclass JNICALL 381 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, 382 jsize len, jobject pd); 383 384 /* Define a class with a source (added in JDK1.5) */ 385 JNIEXPORT jclass JNICALL 386 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, 387 const jbyte *buf, jsize len, jobject pd, 388 const char *source); 389 390 /* 391 * Module support funcions 392 */ 393 394 /* 395 * Define a module with the specified packages and bind the module to the 396 * given class loader. 397 * module: module to define 398 * is_open: specifies if module is open (currently ignored) 399 * version: the module version 400 * location: the module location 401 * packages: list of packages in the module 402 * num_packages: number of packages in the module 403 */ 404 JNIEXPORT void JNICALL 405 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version, 406 jstring location, const char* const* packages, jsize num_packages); 407 408 /* 409 * Set the boot loader's unnamed module. 410 * module: boot loader's unnamed module 411 */ 412 JNIEXPORT void JNICALL 413 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module); 414 415 /* 416 * Do a qualified export of a package. 417 * from_module: module containing the package to export 418 * package: name of the package to export 419 * to_module: module to export the package to 420 */ 421 JNIEXPORT void JNICALL 422 JVM_AddModuleExports(JNIEnv *env, jobject from_module, const char* package, jobject to_module); 423 424 /* 425 * Do an export of a package to all unnamed modules. 426 * from_module: module containing the package to export 427 * package: name of the package to export to all unnamed modules 428 */ 429 JNIEXPORT void JNICALL 430 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, const char* package); 431 432 /* 433 * Do an unqualified export of a package. 434 * from_module: module containing the package to export 435 * package: name of the package to export 436 */ 437 JNIEXPORT void JNICALL 438 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, const char* package); 439 440 /* 441 * Add a module to the list of modules that a given module can read. 442 * from_module: module requesting read access 443 * source_module: module that from_module wants to read 444 */ 445 JNIEXPORT void JNICALL 446 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module); 447 448 /* 449 * Reflection support functions 450 */ 451 452 JNIEXPORT jstring JNICALL 453 JVM_InitClassName(JNIEnv *env, jclass cls); 454 455 JNIEXPORT jobjectArray JNICALL 456 JVM_GetClassInterfaces(JNIEnv *env, jclass cls); 457 458 JNIEXPORT jboolean JNICALL 459 JVM_IsInterface(JNIEnv *env, jclass cls); 460 461 JNIEXPORT jobjectArray JNICALL 462 JVM_GetClassSigners(JNIEnv *env, jclass cls); 463 464 JNIEXPORT void JNICALL 465 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers); 466 467 JNIEXPORT jobject JNICALL 468 JVM_GetProtectionDomain(JNIEnv *env, jclass cls); 469 470 JNIEXPORT jboolean JNICALL 471 JVM_IsArrayClass(JNIEnv *env, jclass cls); 472 473 JNIEXPORT jboolean JNICALL 474 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls); 475 476 JNIEXPORT jint JNICALL 477 JVM_GetClassModifiers(JNIEnv *env, jclass cls); 478 479 JNIEXPORT jobjectArray JNICALL 480 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass); 481 482 JNIEXPORT jclass JNICALL 483 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass); 484 485 JNIEXPORT jstring JNICALL 486 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass); 487 488 /* Generics support (JDK 1.5) */ 489 JNIEXPORT jstring JNICALL 490 JVM_GetClassSignature(JNIEnv *env, jclass cls); 491 492 /* Annotations support (JDK 1.5) */ 493 JNIEXPORT jbyteArray JNICALL 494 JVM_GetClassAnnotations(JNIEnv *env, jclass cls); 495 496 /* Type use annotations support (JDK 1.8) */ 497 498 JNIEXPORT jbyteArray JNICALL 499 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls); 500 501 JNIEXPORT jbyteArray JNICALL 502 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field); 503 504 JNIEXPORT jbyteArray JNICALL 505 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method); 506 507 /* 508 * New (JDK 1.4) reflection implementation 509 */ 510 511 JNIEXPORT jobjectArray JNICALL 512 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly); 513 514 JNIEXPORT jobjectArray JNICALL 515 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly); 516 517 JNIEXPORT jobjectArray JNICALL 518 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly); 519 520 /* Differs from JVM_GetClassModifiers in treatment of inner classes. 521 This returns the access flags for the class as specified in the 522 class file rather than searching the InnerClasses attribute (if 523 present) to find the source-level access flags. Only the values of 524 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be 525 valid. */ 526 JNIEXPORT jint JNICALL 527 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls); 528 529 /* Nestmates - since JDK 11 */ 530 531 JNIEXPORT jboolean JNICALL 532 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member); 533 534 JNIEXPORT jclass JNICALL 535 JVM_GetNestHost(JNIEnv *env, jclass current); 536 537 JNIEXPORT jobjectArray JNICALL 538 JVM_GetNestMembers(JNIEnv *env, jclass current); 539 540 /* The following two reflection routines are still needed due to startup time issues */ 541 /* 542 * java.lang.reflect.Method 543 */ 544 JNIEXPORT jobject JNICALL 545 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 546 547 /* 548 * java.lang.reflect.Constructor 549 */ 550 JNIEXPORT jobject JNICALL 551 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 552 553 /* 554 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5) 555 */ 556 557 JNIEXPORT jobject JNICALL 558 JVM_GetClassConstantPool(JNIEnv *env, jclass cls); 559 560 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize 561 (JNIEnv *env, jobject unused, jobject jcpool); 562 563 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt 564 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 565 566 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded 567 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 568 569 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt 570 (JNIEnv *env, jobject obj, jobject unused, jint index); 571 572 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt 573 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 574 575 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded 576 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 577 578 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt 579 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 580 581 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded 582 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 583 584 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt 585 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 586 587 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt 588 (JNIEnv *env, jobject obj, jobject unused, jint index); 589 590 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt 591 (JNIEnv *env, jobject obj, jobject unused, jint index); 592 593 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt 594 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 595 596 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt 597 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 598 599 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt 600 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 601 602 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt 603 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 604 605 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt 606 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 607 608 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At 609 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 610 611 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt 612 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 613 614 /* 615 * Parameter reflection 616 */ 617 618 JNIEXPORT jobjectArray JNICALL 619 JVM_GetMethodParameters(JNIEnv *env, jobject method); 620 621 /* 622 * java.security.* 623 */ 624 625 JNIEXPORT jobject JNICALL 626 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls); 627 628 /* 629 * Ensure that code doing a stackwalk and using javaVFrame::locals() to 630 * get the value will see a materialized value and not a scalar-replaced 631 * null value. 632 */ 633 #define JVM_EnsureMaterializedForStackWalk(env, value) \ 634 do {} while(0) // Nothing to do. The fact that the value escaped 635 // through a native method is enough. 636 637 JNIEXPORT jobject JNICALL 638 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls); 639 640 /* 641 * Signal support, used to implement the shutdown sequence. Every VM must 642 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts 643 * (^C) and the latter for external termination (kill, system shutdown, etc.). 644 * Other platform-dependent signal values may also be supported. 645 */ 646 647 JNIEXPORT void * JNICALL 648 JVM_RegisterSignal(jint sig, void *handler); 649 650 JNIEXPORT jboolean JNICALL 651 JVM_RaiseSignal(jint sig); 652 653 JNIEXPORT jint JNICALL 654 JVM_FindSignal(const char *name); 655 656 /* 657 * Retrieve the assertion directives for the specified class. 658 */ 659 JNIEXPORT jboolean JNICALL 660 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls); 661 662 /* 663 * Retrieve the assertion directives from the VM. 664 */ 665 JNIEXPORT jobject JNICALL 666 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused); 667 668 /* 669 * java.util.concurrent.atomic.AtomicLong 670 */ 671 JNIEXPORT jboolean JNICALL 672 JVM_SupportsCX8(void); 673 674 /* 675 * com.sun.dtrace.jsdt support 676 */ 677 678 #define JVM_TRACING_DTRACE_VERSION 1 679 680 /* 681 * Structure to pass one probe description to JVM 682 */ 683 typedef struct { 684 jmethodID method; 685 jstring function; 686 jstring name; 687 void* reserved[4]; // for future use 688 } JVM_DTraceProbe; 689 690 /** 691 * Encapsulates the stability ratings for a DTrace provider field 692 */ 693 typedef struct { 694 jint nameStability; 695 jint dataStability; 696 jint dependencyClass; 697 } JVM_DTraceInterfaceAttributes; 698 699 /* 700 * Structure to pass one provider description to JVM 701 */ 702 typedef struct { 703 jstring name; 704 JVM_DTraceProbe* probes; 705 jint probe_count; 706 JVM_DTraceInterfaceAttributes providerAttributes; 707 JVM_DTraceInterfaceAttributes moduleAttributes; 708 JVM_DTraceInterfaceAttributes functionAttributes; 709 JVM_DTraceInterfaceAttributes nameAttributes; 710 JVM_DTraceInterfaceAttributes argsAttributes; 711 void* reserved[4]; // for future use 712 } JVM_DTraceProvider; 713 714 /* 715 * Get the version number the JVM was built with 716 */ 717 JNIEXPORT jint JNICALL 718 JVM_DTraceGetVersion(JNIEnv* env); 719 720 /* 721 * Register new probe with given signature, return global handle 722 * 723 * The version passed in is the version that the library code was 724 * built with. 725 */ 726 JNIEXPORT jlong JNICALL 727 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name, 728 jint providers_count, JVM_DTraceProvider* providers); 729 730 /* 731 * Check JSDT probe 732 */ 733 JNIEXPORT jboolean JNICALL 734 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method); 735 736 /* 737 * Destroy custom DOF 738 */ 739 JNIEXPORT void JNICALL 740 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle); 741 742 /* 743 * Check to see if DTrace is supported by OS 744 */ 745 JNIEXPORT jboolean JNICALL 746 JVM_DTraceIsSupported(JNIEnv* env); 747 748 /************************************************************************* 749 PART 2: Support for the Verifier and Class File Format Checker 750 ************************************************************************/ 751 /* 752 * Return the class name in UTF format. The result is valid 753 * until JVM_ReleaseUTf is called. 754 * 755 * The caller must treat the string as a constant and not modify it 756 * in any way. 757 */ 758 JNIEXPORT const char * JNICALL 759 JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 760 761 /* 762 * Returns the constant pool types in the buffer provided by "types." 763 */ 764 JNIEXPORT void JNICALL 765 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 766 767 /* 768 * Returns the number of Constant Pool entries. 769 */ 770 JNIEXPORT jint JNICALL 771 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 772 773 /* 774 * Returns the number of *declared* fields or methods. 775 */ 776 JNIEXPORT jint JNICALL 777 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 778 779 JNIEXPORT jint JNICALL 780 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 781 782 /* 783 * Returns the CP indexes of exceptions raised by a given method. 784 * Places the result in the given buffer. 785 * 786 * The method is identified by method_index. 787 */ 788 JNIEXPORT void JNICALL 789 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 790 unsigned short *exceptions); 791 /* 792 * Returns the number of exceptions raised by a given method. 793 * The method is identified by method_index. 794 */ 795 JNIEXPORT jint JNICALL 796 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 797 798 /* 799 * Returns the byte code sequence of a given method. 800 * Places the result in the given buffer. 801 * 802 * The method is identified by method_index. 803 */ 804 JNIEXPORT void JNICALL 805 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 806 unsigned char *code); 807 808 /* 809 * Returns the length of the byte code sequence of a given method. 810 * The method is identified by method_index. 811 */ 812 JNIEXPORT jint JNICALL 813 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 814 815 /* 816 * A structure used to a capture exception table entry in a Java method. 817 */ 818 typedef struct { 819 jint start_pc; 820 jint end_pc; 821 jint handler_pc; 822 jint catchType; 823 } JVM_ExceptionTableEntryType; 824 825 /* 826 * Returns the exception table entry at entry_index of a given method. 827 * Places the result in the given buffer. 828 * 829 * The method is identified by method_index. 830 */ 831 JNIEXPORT void JNICALL 832 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 833 jint entry_index, 834 JVM_ExceptionTableEntryType *entry); 835 836 /* 837 * Returns the length of the exception table of a given method. 838 * The method is identified by method_index. 839 */ 840 JNIEXPORT jint JNICALL 841 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 842 843 /* 844 * Returns the modifiers of a given field. 845 * The field is identified by field_index. 846 */ 847 JNIEXPORT jint JNICALL 848 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 849 850 /* 851 * Returns the modifiers of a given method. 852 * The method is identified by method_index. 853 */ 854 JNIEXPORT jint JNICALL 855 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 856 857 /* 858 * Returns the number of local variables of a given method. 859 * The method is identified by method_index. 860 */ 861 JNIEXPORT jint JNICALL 862 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 863 864 /* 865 * Returns the number of arguments (including this pointer) of a given method. 866 * The method is identified by method_index. 867 */ 868 JNIEXPORT jint JNICALL 869 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 870 871 /* 872 * Returns the maximum amount of stack (in words) used by a given method. 873 * The method is identified by method_index. 874 */ 875 JNIEXPORT jint JNICALL 876 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 877 878 /* 879 * Is a given method a constructor. 880 * The method is identified by method_index. 881 */ 882 JNIEXPORT jboolean JNICALL 883 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 884 885 /* 886 * Is the given method generated by the VM. 887 * The method is identified by method_index. 888 */ 889 JNIEXPORT jboolean JNICALL 890 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index); 891 892 /* 893 * Returns the name of a given method in UTF format. 894 * The result remains valid until JVM_ReleaseUTF is called. 895 * 896 * The caller must treat the string as a constant and not modify it 897 * in any way. 898 */ 899 JNIEXPORT const char * JNICALL 900 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 901 902 /* 903 * Returns the signature of a given method in UTF format. 904 * The result remains valid until JVM_ReleaseUTF is called. 905 * 906 * The caller must treat the string as a constant and not modify it 907 * in any way. 908 */ 909 JNIEXPORT const char * JNICALL 910 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 911 912 /* 913 * Returns the name of the field referred to at a given constant pool 914 * index. 915 * 916 * The result is in UTF format and remains valid until JVM_ReleaseUTF 917 * is called. 918 * 919 * The caller must treat the string as a constant and not modify it 920 * in any way. 921 */ 922 JNIEXPORT const char * JNICALL 923 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 924 925 /* 926 * Returns the name of the method referred to at a given constant pool 927 * index. 928 * 929 * The result is in UTF format and remains valid until JVM_ReleaseUTF 930 * is called. 931 * 932 * The caller must treat the string as a constant and not modify it 933 * in any way. 934 */ 935 JNIEXPORT const char * JNICALL 936 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 937 938 /* 939 * Returns the signature of the method referred to at a given constant pool 940 * index. 941 * 942 * The result is in UTF format and remains valid until JVM_ReleaseUTF 943 * is called. 944 * 945 * The caller must treat the string as a constant and not modify it 946 * in any way. 947 */ 948 JNIEXPORT const char * JNICALL 949 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 950 951 /* 952 * Returns the signature of the field referred to at a given constant pool 953 * index. 954 * 955 * The result is in UTF format and remains valid until JVM_ReleaseUTF 956 * is called. 957 * 958 * The caller must treat the string as a constant and not modify it 959 * in any way. 960 */ 961 JNIEXPORT const char * JNICALL 962 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 963 964 /* 965 * Returns the class name referred to at a given constant pool index. 966 * 967 * The result is in UTF format and remains valid until JVM_ReleaseUTF 968 * is called. 969 * 970 * The caller must treat the string as a constant and not modify it 971 * in any way. 972 */ 973 JNIEXPORT const char * JNICALL 974 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 975 976 /* 977 * Returns the class name referred to at a given constant pool index. 978 * 979 * The constant pool entry must refer to a CONSTANT_Fieldref. 980 * 981 * The result is in UTF format and remains valid until JVM_ReleaseUTF 982 * is called. 983 * 984 * The caller must treat the string as a constant and not modify it 985 * in any way. 986 */ 987 JNIEXPORT const char * JNICALL 988 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 989 990 /* 991 * Returns the class name referred to at a given constant pool index. 992 * 993 * The constant pool entry must refer to CONSTANT_Methodref or 994 * CONSTANT_InterfaceMethodref. 995 * 996 * The result is in UTF format and remains valid until JVM_ReleaseUTF 997 * is called. 998 * 999 * The caller must treat the string as a constant and not modify it 1000 * in any way. 1001 */ 1002 JNIEXPORT const char * JNICALL 1003 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 1004 1005 /* 1006 * Returns the modifiers of a field in calledClass. The field is 1007 * referred to in class cb at constant pool entry index. 1008 * 1009 * The caller must treat the string as a constant and not modify it 1010 * in any way. 1011 * 1012 * Returns -1 if the field does not exist in calledClass. 1013 */ 1014 JNIEXPORT jint JNICALL 1015 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 1016 1017 /* 1018 * Returns the modifiers of a method in calledClass. The method is 1019 * referred to in class cb at constant pool entry index. 1020 * 1021 * Returns -1 if the method does not exist in calledClass. 1022 */ 1023 JNIEXPORT jint JNICALL 1024 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 1025 1026 /* 1027 * Releases the UTF string obtained from the VM. 1028 */ 1029 JNIEXPORT void JNICALL 1030 JVM_ReleaseUTF(const char *utf); 1031 1032 /* 1033 * Compare if two classes are in the same package. 1034 */ 1035 JNIEXPORT jboolean JNICALL 1036 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 1037 1038 /* Get classfile constants */ 1039 #include "classfile_constants.h" 1040 1041 /* 1042 * A function defined by the byte-code verifier and called by the VM. 1043 * This is not a function implemented in the VM. 1044 * 1045 * Returns JNI_FALSE if verification fails. A detailed error message 1046 * will be places in msg_buf, whose length is specified by buf_len. 1047 */ 1048 typedef jboolean (*verifier_fn_t)(JNIEnv *env, 1049 jclass cb, 1050 char * msg_buf, 1051 jint buf_len); 1052 1053 1054 /* 1055 * Support for a VM-independent class format checker. 1056 */ 1057 typedef struct { 1058 unsigned long code; /* byte code */ 1059 unsigned long excs; /* exceptions */ 1060 unsigned long etab; /* catch table */ 1061 unsigned long lnum; /* line number */ 1062 unsigned long lvar; /* local vars */ 1063 } method_size_info; 1064 1065 typedef struct { 1066 unsigned int constants; /* constant pool */ 1067 unsigned int fields; 1068 unsigned int methods; 1069 unsigned int interfaces; 1070 unsigned int fields2; /* number of static 2-word fields */ 1071 unsigned int innerclasses; /* # of records in InnerClasses attr */ 1072 1073 method_size_info clinit; /* memory used in clinit */ 1074 method_size_info main; /* used everywhere else */ 1075 } class_size_info; 1076 1077 /* 1078 * Functions defined in libjava.so to perform string conversions. 1079 * 1080 */ 1081 1082 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str); 1083 1084 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b); 1085 1086 /* This is the function defined in libjava.so that performs class 1087 * format checks. This functions fills in size information about 1088 * the class file and returns: 1089 * 1090 * 0: good 1091 * -1: out of memory 1092 * -2: bad format 1093 * -3: unsupported version 1094 * -4: bad class name 1095 */ 1096 1097 typedef jint (*check_format_fn_t)(char *class_name, 1098 unsigned char *data, 1099 unsigned int data_size, 1100 class_size_info *class_size, 1101 char *message_buffer, 1102 jint buffer_length, 1103 jboolean measure_only, 1104 jboolean check_relaxed); 1105 1106 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \ 1107 JVM_ACC_FINAL | \ 1108 JVM_ACC_SUPER | \ 1109 JVM_ACC_INTERFACE | \ 1110 JVM_ACC_ABSTRACT | \ 1111 JVM_ACC_ANNOTATION | \ 1112 JVM_ACC_ENUM | \ 1113 JVM_ACC_SYNTHETIC) 1114 1115 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \ 1116 JVM_ACC_PRIVATE | \ 1117 JVM_ACC_PROTECTED | \ 1118 JVM_ACC_STATIC | \ 1119 JVM_ACC_FINAL | \ 1120 JVM_ACC_VOLATILE | \ 1121 JVM_ACC_TRANSIENT | \ 1122 JVM_ACC_ENUM | \ 1123 JVM_ACC_SYNTHETIC) 1124 1125 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \ 1126 JVM_ACC_PRIVATE | \ 1127 JVM_ACC_PROTECTED | \ 1128 JVM_ACC_STATIC | \ 1129 JVM_ACC_FINAL | \ 1130 JVM_ACC_SYNCHRONIZED | \ 1131 JVM_ACC_BRIDGE | \ 1132 JVM_ACC_VARARGS | \ 1133 JVM_ACC_NATIVE | \ 1134 JVM_ACC_ABSTRACT | \ 1135 JVM_ACC_STRICT | \ 1136 JVM_ACC_SYNTHETIC) 1137 1138 /* 1139 * This is the function defined in libjava.so to perform path 1140 * canonicalization. VM call this function before opening jar files 1141 * to load system classes. 1142 * 1143 */ 1144 1145 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len); 1146 1147 /************************************************************************* 1148 PART 3: I/O and Network Support 1149 ************************************************************************/ 1150 1151 /* 1152 * Convert a pathname into native format. This function does syntactic 1153 * cleanup, such as removing redundant separator characters. It modifies 1154 * the given pathname string in place. 1155 */ 1156 JNIEXPORT char * JNICALL 1157 JVM_NativePath(char *); 1158 1159 /* 1160 * The standard printing functions supported by the Java VM. (Should they 1161 * be renamed to JVM_* in the future? 1162 */ 1163 1164 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3), 1165 * respectively, with the following differences: 1166 * - The string written to str is always zero-terminated, also in case of 1167 * truncation (count is too small to hold the result string), unless count 1168 * is 0. In case of truncation count-1 characters are written and '\0' 1169 * appendend. 1170 * - If count is too small to hold the whole string, -1 is returned across 1171 * all platforms. */ 1172 1173 JNIEXPORT int 1174 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1175 1176 JNIEXPORT int 1177 jio_snprintf(char *str, size_t count, const char *fmt, ...); 1178 1179 JNIEXPORT int 1180 jio_fprintf(FILE *, const char *fmt, ...); 1181 1182 JNIEXPORT int 1183 jio_vfprintf(FILE *, const char *fmt, va_list args); 1184 1185 1186 JNIEXPORT void * JNICALL 1187 JVM_RawMonitorCreate(void); 1188 1189 JNIEXPORT void JNICALL 1190 JVM_RawMonitorDestroy(void *mon); 1191 1192 JNIEXPORT jint JNICALL 1193 JVM_RawMonitorEnter(void *mon); 1194 1195 JNIEXPORT void JNICALL 1196 JVM_RawMonitorExit(void *mon); 1197 1198 /* 1199 * java.lang.management support 1200 */ 1201 JNIEXPORT void* JNICALL 1202 JVM_GetManagement(jint version); 1203 1204 /* 1205 * com.sun.tools.attach.VirtualMachine support 1206 * 1207 * Initialize the agent properties with the properties maintained in the VM. 1208 */ 1209 JNIEXPORT jobject JNICALL 1210 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props); 1211 1212 JNIEXPORT jstring JNICALL 1213 JVM_GetTemporaryDirectory(JNIEnv *env); 1214 1215 /* Generics reflection support. 1216 * 1217 * Returns information about the given class's EnclosingMethod 1218 * attribute, if present, or null if the class had no enclosing 1219 * method. 1220 * 1221 * If non-null, the returned array contains three elements. Element 0 1222 * is the java.lang.Class of which the enclosing method is a member, 1223 * and elements 1 and 2 are the java.lang.Strings for the enclosing 1224 * method's name and descriptor, respectively. 1225 */ 1226 JNIEXPORT jobjectArray JNICALL 1227 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass); 1228 1229 /* ========================================================================= 1230 * The following defines a private JVM interface that the JDK can query 1231 * for the JVM version and capabilities. sun.misc.Version defines 1232 * the methods for getting the VM version and its capabilities. 1233 * 1234 * When a new bit is added, the following should be updated to provide 1235 * access to the new capability: 1236 * HS: JVM_GetVersionInfo and Abstract_VM_Version class 1237 * SDK: Version class 1238 * 1239 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for 1240 * JVM to query for the JDK version and capabilities. 1241 * 1242 * When a new bit is added, the following should be updated to provide 1243 * access to the new capability: 1244 * HS: JDK_Version class 1245 * SDK: JDK_GetVersionInfo0 1246 * 1247 * ========================================================================== 1248 */ 1249 typedef struct { 1250 unsigned int jvm_version; /* Encoded $VNUM as specified by JEP-223 */ 1251 unsigned int patch_version : 8; /* JEP-223 patch version */ 1252 unsigned int reserved3 : 8; 1253 unsigned int reserved1 : 16; 1254 unsigned int reserved2; 1255 1256 /* The following bits represents JVM supports that JDK has dependency on. 1257 * JDK can use these bits to determine which JVM version 1258 * and support it has to maintain runtime compatibility. 1259 * 1260 * When a new bit is added in a minor or update release, make sure 1261 * the new bit is also added in the main/baseline. 1262 */ 1263 unsigned int is_attach_supported : 1; 1264 unsigned int : 31; 1265 unsigned int : 32; 1266 unsigned int : 32; 1267 } jvm_version_info; 1268 1269 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1270 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1271 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8) 1272 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF)) 1273 1274 JNIEXPORT void JNICALL 1275 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size); 1276 1277 typedef struct { 1278 unsigned int jdk_version; /* Encoded $VNUM as specified by JEP-223 */ 1279 unsigned int patch_version : 8; /* JEP-223 patch version */ 1280 unsigned int reserved3 : 8; 1281 unsigned int reserved1 : 16; 1282 unsigned int reserved2; 1283 1284 /* The following bits represents new JDK supports that VM has dependency on. 1285 * VM implementation can use these bits to determine which JDK version 1286 * and support it has to maintain runtime compatibility. 1287 * 1288 * When a new bit is added in a minor or update release, make sure 1289 * the new bit is also added in the main/baseline. 1290 */ 1291 unsigned int thread_park_blocker : 1; 1292 unsigned int post_vm_init_hook_enabled : 1; 1293 unsigned int pending_list_uses_discovered_field : 1; 1294 unsigned int : 29; 1295 unsigned int : 32; 1296 unsigned int : 32; 1297 } jdk_version_info; 1298 1299 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1300 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1301 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8) 1302 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF)) 1303 1304 /* 1305 * This is the function JDK_GetVersionInfo0 defined in libjava.so 1306 * that is dynamically looked up by JVM. 1307 */ 1308 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size); 1309 1310 /* 1311 * This structure is used by the launcher to get the default thread 1312 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a 1313 * version of 1.1. As it is not supported otherwise, it has been removed 1314 * from jni.h 1315 */ 1316 typedef struct JDK1_1InitArgs { 1317 jint version; 1318 1319 char **properties; 1320 jint checkSource; 1321 jint nativeStackSize; 1322 jint javaStackSize; 1323 jint minHeapSize; 1324 jint maxHeapSize; 1325 jint verifyMode; 1326 char *classpath; 1327 1328 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args); 1329 void (JNICALL *exit)(jint code); 1330 void (JNICALL *abort)(void); 1331 1332 jint enableClassGC; 1333 jint enableVerboseGC; 1334 jint disableAsyncGC; 1335 jint verbose; 1336 jboolean debugging; 1337 jint debugPort; 1338 } JDK1_1InitArgs; 1339 1340 1341 #ifdef __cplusplus 1342 } /* extern "C" */ 1343 1344 #endif /* __cplusplus */ 1345 1346 #endif /* !_JAVASOFT_JVM_H_ */