1 /* 2 * Copyright (c) 1997, 2016, 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 #ifdef TARGET_OS_FAMILY_linux 30 # include "jvm_linux.h" 31 #endif 32 #ifdef TARGET_OS_FAMILY_solaris 33 # include "jvm_solaris.h" 34 #endif 35 #ifdef TARGET_OS_FAMILY_windows 36 # include "jvm_windows.h" 37 #endif 38 #ifdef TARGET_OS_FAMILY_aix 39 # include "jvm_aix.h" 40 #endif 41 #ifdef TARGET_OS_FAMILY_bsd 42 # include "jvm_bsd.h" 43 #endif 44 45 #ifndef _JAVASOFT_JVM_H_ 46 #define _JAVASOFT_JVM_H_ 47 48 // HotSpot integration note: 49 // 50 // This file and jvm.h used with the JDK are identical, 51 // except for the three includes removed below 52 53 // #include <sys/stat.h> 54 // #include "jni.h" 55 // #include "jvm_md.h" 56 57 58 #ifdef __cplusplus 59 extern "C" { 60 #endif 61 62 /* 63 * This file contains additional functions exported from the VM. 64 * These functions are complementary to the standard JNI support. 65 * There are three parts to this file: 66 * 67 * First, this file contains the VM-related functions needed by native 68 * libraries in the standard Java API. For example, the java.lang.Object 69 * class needs VM-level functions that wait for and notify monitors. 70 * 71 * Second, this file contains the functions and constant definitions 72 * needed by the byte code verifier and class file format checker. 73 * These functions allow the verifier and format checker to be written 74 * in a VM-independent way. 75 * 76 * Third, this file contains various I/O and nerwork operations needed 77 * by the standard Java I/O and network APIs. 78 */ 79 80 /* 81 * Bump the version number when either of the following happens: 82 * 83 * 1. There is a change in JVM_* functions. 84 * 85 * 2. There is a change in the contract between VM and Java classes. 86 * For example, if the VM relies on a new private field in Thread 87 * class. 88 */ 89 90 #define JVM_INTERFACE_VERSION 5 91 92 JNIEXPORT jobjectArray JNICALL 93 JVM_GetMethodParameters(JNIEnv *env, jobject method); 94 95 JNIEXPORT jint JNICALL 96 JVM_GetInterfaceVersion(void); 97 98 /************************************************************************* 99 PART 1: Functions for Native Libraries 100 ************************************************************************/ 101 /* 102 * java.lang.Object 103 */ 104 JNIEXPORT jint JNICALL 105 JVM_IHashCode(JNIEnv *env, jobject obj); 106 107 JNIEXPORT void JNICALL 108 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms); 109 110 JNIEXPORT void JNICALL 111 JVM_MonitorNotify(JNIEnv *env, jobject obj); 112 113 JNIEXPORT void JNICALL 114 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj); 115 116 JNIEXPORT jobject JNICALL 117 JVM_Clone(JNIEnv *env, jobject obj); 118 119 /* 120 * java.lang.String 121 */ 122 JNIEXPORT jstring JNICALL 123 JVM_InternString(JNIEnv *env, jstring str); 124 125 /* 126 * java.lang.System 127 */ 128 JNIEXPORT jlong JNICALL 129 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored); 130 131 JNIEXPORT jlong JNICALL 132 JVM_NanoTime(JNIEnv *env, jclass ignored); 133 134 JNIEXPORT jlong JNICALL 135 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs); 136 137 JNIEXPORT void JNICALL 138 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos, 139 jobject dst, jint dst_pos, jint length); 140 141 JNIEXPORT jobject JNICALL 142 JVM_InitProperties(JNIEnv *env, jobject p); 143 144 /* 145 * java.lang.Runtime 146 */ 147 148 JNIEXPORT void JNICALL 149 JVM_Halt(jint code); 150 151 JNIEXPORT void JNICALL 152 JVM_GC(void); 153 154 /* Returns the number of real-time milliseconds that have elapsed since the 155 * least-recently-inspected heap object was last inspected by the garbage 156 * collector. 157 * 158 * For simple stop-the-world collectors this value is just the time 159 * since the most recent collection. For generational collectors it is the 160 * time since the oldest generation was most recently collected. Other 161 * collectors are free to return a pessimistic estimate of the elapsed time, or 162 * simply the time since the last full collection was performed. 163 * 164 * Note that in the presence of reference objects, a given object that is no 165 * longer strongly reachable may have to be inspected multiple times before it 166 * can be reclaimed. 167 */ 168 JNIEXPORT jlong JNICALL 169 JVM_MaxObjectInspectionAge(void); 170 171 JNIEXPORT jlong JNICALL 172 JVM_TotalMemory(void); 173 174 JNIEXPORT jlong JNICALL 175 JVM_FreeMemory(void); 176 177 JNIEXPORT jlong JNICALL 178 JVM_MaxMemory(void); 179 180 JNIEXPORT jint JNICALL 181 JVM_ActiveProcessorCount(void); 182 183 JNIEXPORT void * JNICALL 184 JVM_LoadLibrary(const char *name); 185 186 JNIEXPORT void JNICALL 187 JVM_UnloadLibrary(void * handle); 188 189 JNIEXPORT void * JNICALL 190 JVM_FindLibraryEntry(void *handle, const char *name); 191 192 JNIEXPORT jboolean JNICALL 193 JVM_IsSupportedJNIVersion(jint version); 194 195 JNIEXPORT jobjectArray JNICALL 196 JVM_GetVmArguments(JNIEnv *env); 197 198 /* 199 * java.lang.Throwable 200 */ 201 JNIEXPORT void JNICALL 202 JVM_FillInStackTrace(JNIEnv *env, jobject throwable); 203 204 JNIEXPORT void JNICALL 205 JVM_GetStackTraceElements(JNIEnv *env, jobject throwable, jobjectArray elements); 206 207 /* 208 * java.lang.StackWalker 209 */ 210 enum { 211 JVM_STACKWALK_FILL_CLASS_REFS_ONLY = 0x2, 212 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20, 213 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100 214 }; 215 216 JNIEXPORT jobject JNICALL 217 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode, 218 jint skip_frames, jint frame_count, jint start_index, 219 jobjectArray frames); 220 221 JNIEXPORT jint JNICALL 222 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor, 223 jint frame_count, jint start_index, 224 jobjectArray frames); 225 226 JNIEXPORT void JNICALL 227 JVM_ToStackTraceElement(JNIEnv* env, jobject frame, jobject stackElement); 228 229 /* 230 * java.lang.Thread 231 */ 232 JNIEXPORT void JNICALL 233 JVM_StartThread(JNIEnv *env, jobject thread); 234 235 JNIEXPORT void JNICALL 236 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception); 237 238 JNIEXPORT jboolean JNICALL 239 JVM_IsThreadAlive(JNIEnv *env, jobject thread); 240 241 JNIEXPORT void JNICALL 242 JVM_SuspendThread(JNIEnv *env, jobject thread); 243 244 JNIEXPORT void JNICALL 245 JVM_ResumeThread(JNIEnv *env, jobject thread); 246 247 JNIEXPORT void JNICALL 248 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio); 249 250 JNIEXPORT void JNICALL 251 JVM_Yield(JNIEnv *env, jclass threadClass); 252 253 JNIEXPORT void JNICALL 254 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis); 255 256 JNIEXPORT jobject JNICALL 257 JVM_CurrentThread(JNIEnv *env, jclass threadClass); 258 259 JNIEXPORT jint JNICALL 260 JVM_CountStackFrames(JNIEnv *env, jobject thread); 261 262 JNIEXPORT void JNICALL 263 JVM_Interrupt(JNIEnv *env, jobject thread); 264 265 JNIEXPORT jboolean JNICALL 266 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted); 267 268 JNIEXPORT jboolean JNICALL 269 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj); 270 271 JNIEXPORT void JNICALL 272 JVM_DumpAllStacks(JNIEnv *env, jclass unused); 273 274 JNIEXPORT jobjectArray JNICALL 275 JVM_GetAllThreads(JNIEnv *env, jclass dummy); 276 277 JNIEXPORT void JNICALL 278 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name, jboolean allowAttachedThread); 279 280 /* getStackTrace() and getAllStackTraces() method */ 281 JNIEXPORT jobjectArray JNICALL 282 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads); 283 284 /* 285 * java.lang.SecurityManager 286 */ 287 JNIEXPORT jclass JNICALL 288 JVM_CurrentLoadedClass(JNIEnv *env); 289 290 JNIEXPORT jobject JNICALL 291 JVM_CurrentClassLoader(JNIEnv *env); 292 293 JNIEXPORT jobjectArray JNICALL 294 JVM_GetClassContext(JNIEnv *env); 295 296 JNIEXPORT jint JNICALL 297 JVM_ClassDepth(JNIEnv *env, jstring name); 298 299 JNIEXPORT jint JNICALL 300 JVM_ClassLoaderDepth(JNIEnv *env); 301 302 /* 303 * java.lang.Package 304 */ 305 JNIEXPORT jstring JNICALL 306 JVM_GetSystemPackage(JNIEnv *env, jstring name); 307 308 JNIEXPORT jobjectArray JNICALL 309 JVM_GetSystemPackages(JNIEnv *env); 310 311 /* 312 * java.io.ObjectInputStream 313 */ 314 JNIEXPORT jobject JNICALL 315 JVM_LatestUserDefinedLoader(JNIEnv *env); 316 317 /* 318 * java.lang.reflect.Array 319 */ 320 JNIEXPORT jint JNICALL 321 JVM_GetArrayLength(JNIEnv *env, jobject arr); 322 323 JNIEXPORT jobject JNICALL 324 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index); 325 326 JNIEXPORT jvalue JNICALL 327 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode); 328 329 JNIEXPORT void JNICALL 330 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val); 331 332 JNIEXPORT void JNICALL 333 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, 334 unsigned char vCode); 335 336 JNIEXPORT jobject JNICALL 337 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length); 338 339 JNIEXPORT jobject JNICALL 340 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim); 341 342 /* 343 * java.lang.Class and java.lang.ClassLoader 344 */ 345 346 #define JVM_CALLER_DEPTH -1 347 348 /* 349 * Returns the class in which the code invoking the native method 350 * belongs. 351 * 352 * Note that in JDK 1.1, native methods did not create a frame. 353 * In 1.2, they do. Therefore native methods like Class.forName 354 * can no longer look at the current frame for the caller class. 355 */ 356 JNIEXPORT jclass JNICALL 357 JVM_GetCallerClass(JNIEnv *env, int n); 358 359 /* 360 * Find primitive classes 361 * utf: class name 362 */ 363 JNIEXPORT jclass JNICALL 364 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf); 365 366 /* 367 * Find a class from a boot class loader. Returns NULL if class not found. 368 */ 369 JNIEXPORT jclass JNICALL 370 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name); 371 372 /* 373 * Find a class from a given class loader. Throws ClassNotFoundException. 374 * name: name of class 375 * init: whether initialization is done 376 * loader: class loader to look up the class. This may not be the same as the caller's 377 * class loader. 378 * caller: initiating class. The initiating class may be null when a security 379 * manager is not installed. 380 */ 381 JNIEXPORT jclass JNICALL 382 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init, 383 jobject loader, jclass caller); 384 385 /* 386 * Find a class from a given class. 387 */ 388 JNIEXPORT jclass JNICALL 389 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init, 390 jclass from); 391 392 /* Find a loaded class cached by the VM */ 393 JNIEXPORT jclass JNICALL 394 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name); 395 396 /* Define a class */ 397 JNIEXPORT jclass JNICALL 398 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, 399 jsize len, jobject pd); 400 401 /* Define a class with a source (added in JDK1.5) */ 402 JNIEXPORT jclass JNICALL 403 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, 404 const jbyte *buf, jsize len, jobject pd, 405 const char *source); 406 407 /* 408 * Module support funcions 409 */ 410 411 JNIEXPORT void JNICALL 412 JVM_DefineModule(JNIEnv *env, jobject module, jstring version, jstring location, 413 jobjectArray packages); 414 415 JNIEXPORT void JNICALL 416 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module); 417 418 JNIEXPORT void JNICALL 419 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module); 420 421 JNIEXPORT void JNICALL 422 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package); 423 424 JNIEXPORT void JNICALL 425 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package); 426 427 JNIEXPORT void JNICALL 428 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module); 429 430 JNIEXPORT jboolean JNICALL 431 JVM_CanReadModule(JNIEnv *env, jobject asking_module, jobject source_module); 432 433 JNIEXPORT jboolean JNICALL 434 JVM_IsExportedToModule(JNIEnv *env, jobject from_module, jstring package, jobject to_module); 435 436 JNIEXPORT void JNICALL 437 JVM_AddModulePackage(JNIEnv* env, jobject module, jstring package); 438 439 JNIEXPORT jobject JNICALL 440 JVM_GetModuleByPackageName(JNIEnv* env, jobject loader, jstring package); 441 442 /* 443 * Reflection support functions 444 */ 445 446 JNIEXPORT jstring JNICALL 447 JVM_GetClassName(JNIEnv *env, jclass cls); 448 449 JNIEXPORT jobjectArray JNICALL 450 JVM_GetClassInterfaces(JNIEnv *env, jclass cls); 451 452 JNIEXPORT jboolean JNICALL 453 JVM_IsInterface(JNIEnv *env, jclass cls); 454 455 JNIEXPORT jobjectArray JNICALL 456 JVM_GetClassSigners(JNIEnv *env, jclass cls); 457 458 JNIEXPORT void JNICALL 459 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers); 460 461 JNIEXPORT jobject JNICALL 462 JVM_GetProtectionDomain(JNIEnv *env, jclass cls); 463 464 JNIEXPORT jboolean JNICALL 465 JVM_IsArrayClass(JNIEnv *env, jclass cls); 466 467 JNIEXPORT jboolean JNICALL 468 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls); 469 470 JNIEXPORT jint JNICALL 471 JVM_GetClassModifiers(JNIEnv *env, jclass cls); 472 473 JNIEXPORT jobjectArray JNICALL 474 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass); 475 476 JNIEXPORT jclass JNICALL 477 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass); 478 479 JNIEXPORT jstring JNICALL 480 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass); 481 482 /* Generics support (JDK 1.5) */ 483 JNIEXPORT jstring JNICALL 484 JVM_GetClassSignature(JNIEnv *env, jclass cls); 485 486 /* Annotations support (JDK 1.5) */ 487 JNIEXPORT jbyteArray JNICALL 488 JVM_GetClassAnnotations(JNIEnv *env, jclass cls); 489 490 /* Annotations support (JDK 1.6) */ 491 492 /* Type use annotations support (JDK 1.8) */ 493 494 JNIEXPORT jbyteArray JNICALL 495 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls); 496 497 // field is a handle to a java.lang.reflect.Field object 498 JNIEXPORT jbyteArray JNICALL 499 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field); 500 501 // method is a handle to a java.lang.reflect.Method object 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 /* 528 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5) 529 */ 530 531 JNIEXPORT jobject JNICALL 532 JVM_GetClassConstantPool(JNIEnv *env, jclass cls); 533 534 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize 535 (JNIEnv *env, jobject obj, jobject unused); 536 537 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt 538 (JNIEnv *env, jobject obj, jobject unused, jint index); 539 540 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded 541 (JNIEnv *env, jobject obj, jobject unused, jint index); 542 543 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt 544 (JNIEnv *env, jobject obj, jobject unused, jint index); 545 546 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded 547 (JNIEnv *env, jobject obj, jobject unused, jint index); 548 549 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt 550 (JNIEnv *env, jobject obj, jobject unused, jint index); 551 552 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded 553 (JNIEnv *env, jobject obj, jobject unused, jint index); 554 555 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt 556 (JNIEnv *env, jobject obj, jobject unused, jint index); 557 558 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt 559 (JNIEnv *env, jobject obj, jobject unused, jint index); 560 561 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt 562 (JNIEnv *env, jobject obj, jobject unused, jint index); 563 564 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt 565 (JNIEnv *env, jobject obj, jobject unused, jint index); 566 567 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt 568 (JNIEnv *env, jobject obj, jobject unused, jint index); 569 570 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt 571 (JNIEnv *env, jobject obj, jobject unused, jint index); 572 573 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt 574 (JNIEnv *env, jobject obj, jobject unused, jint index); 575 576 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt 577 (JNIEnv *env, jobject obj, jobject unused, jint index); 578 579 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt 580 (JNIEnv *env, jobject obj, jobject unused, jint index); 581 582 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At 583 (JNIEnv *env, jobject obj, jobject unused, jint index); 584 585 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt 586 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 587 588 /* 589 * java.security.* 590 */ 591 592 JNIEXPORT jobject JNICALL 593 JVM_DoPrivileged(JNIEnv *env, jclass cls, 594 jobject action, jobject context, jboolean wrapException); 595 596 JNIEXPORT jobject JNICALL 597 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls); 598 599 JNIEXPORT jobject JNICALL 600 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls); 601 602 /* 603 * Signal support, used to implement the shutdown sequence. Every VM must 604 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts 605 * (^C) and the latter for external termination (kill, system shutdown, etc.). 606 * Other platform-dependent signal values may also be supported. 607 */ 608 609 JNIEXPORT void * JNICALL 610 JVM_RegisterSignal(jint sig, void *handler); 611 612 JNIEXPORT jboolean JNICALL 613 JVM_RaiseSignal(jint sig); 614 615 JNIEXPORT jint JNICALL 616 JVM_FindSignal(const char *name); 617 618 /* 619 * Retrieve the assertion directives for the specified class. 620 */ 621 JNIEXPORT jboolean JNICALL 622 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls); 623 624 /* 625 * Retrieve the assertion directives from the VM. 626 */ 627 JNIEXPORT jobject JNICALL 628 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused); 629 630 /* 631 * java.util.concurrent.atomic.AtomicLong 632 */ 633 JNIEXPORT jboolean JNICALL 634 JVM_SupportsCX8(void); 635 636 /************************************************************************* 637 PART 2: Support for the Verifier and Class File Format Checker 638 ************************************************************************/ 639 /* 640 * Return the class name in UTF format. The result is valid 641 * until JVM_ReleaseUTf is called. 642 * 643 * The caller must treat the string as a constant and not modify it 644 * in any way. 645 */ 646 JNIEXPORT const char * JNICALL 647 JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 648 649 /* 650 * Returns the constant pool types in the buffer provided by "types." 651 */ 652 JNIEXPORT void JNICALL 653 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 654 655 /* 656 * Returns the number of Constant Pool entries. 657 */ 658 JNIEXPORT jint JNICALL 659 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 660 661 /* 662 * Returns the number of *declared* fields or methods. 663 */ 664 JNIEXPORT jint JNICALL 665 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 666 667 JNIEXPORT jint JNICALL 668 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 669 670 /* 671 * Returns the CP indexes of exceptions raised by a given method. 672 * Places the result in the given buffer. 673 * 674 * The method is identified by method_index. 675 */ 676 JNIEXPORT void JNICALL 677 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 678 unsigned short *exceptions); 679 /* 680 * Returns the number of exceptions raised by a given method. 681 * The method is identified by method_index. 682 */ 683 JNIEXPORT jint JNICALL 684 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 685 686 /* 687 * Returns the byte code sequence of a given method. 688 * Places the result in the given buffer. 689 * 690 * The method is identified by method_index. 691 */ 692 JNIEXPORT void JNICALL 693 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 694 unsigned char *code); 695 696 /* 697 * Returns the length of the byte code sequence of a given method. 698 * The method is identified by method_index. 699 */ 700 JNIEXPORT jint JNICALL 701 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 702 703 /* 704 * A structure used to a capture exception table entry in a Java method. 705 */ 706 typedef struct { 707 jint start_pc; 708 jint end_pc; 709 jint handler_pc; 710 jint catchType; 711 } JVM_ExceptionTableEntryType; 712 713 /* 714 * Returns the exception table entry at entry_index of a given method. 715 * Places the result in the given buffer. 716 * 717 * The method is identified by method_index. 718 */ 719 JNIEXPORT void JNICALL 720 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 721 jint entry_index, 722 JVM_ExceptionTableEntryType *entry); 723 724 /* 725 * Returns the length of the exception table of a given method. 726 * The method is identified by method_index. 727 */ 728 JNIEXPORT jint JNICALL 729 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 730 731 /* 732 * Returns the modifiers of a given field. 733 * The field is identified by field_index. 734 */ 735 JNIEXPORT jint JNICALL 736 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 737 738 /* 739 * Returns the modifiers of a given method. 740 * The method is identified by method_index. 741 */ 742 JNIEXPORT jint JNICALL 743 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 744 745 /* 746 * Returns the number of local variables of a given method. 747 * The method is identified by method_index. 748 */ 749 JNIEXPORT jint JNICALL 750 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 751 752 /* 753 * Returns the number of arguments (including this pointer) of a given method. 754 * The method is identified by method_index. 755 */ 756 JNIEXPORT jint JNICALL 757 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 758 759 /* 760 * Returns the maximum amount of stack (in words) used by a given method. 761 * The method is identified by method_index. 762 */ 763 JNIEXPORT jint JNICALL 764 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 765 766 /* 767 * Is a given method a constructor. 768 * The method is identified by method_index. 769 */ 770 JNIEXPORT jboolean JNICALL 771 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 772 773 /* 774 * Is the given method generated by the VM. 775 * The method is identified by method_index. 776 */ 777 JNIEXPORT jboolean JNICALL 778 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index); 779 780 /* 781 * Returns the name of a given method in UTF format. 782 * The result remains valid until JVM_ReleaseUTF is called. 783 * 784 * The caller must treat the string as a constant and not modify it 785 * in any way. 786 */ 787 JNIEXPORT const char * JNICALL 788 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 789 790 /* 791 * Returns the signature of a given method in UTF format. 792 * The result remains valid until JVM_ReleaseUTF is called. 793 * 794 * The caller must treat the string as a constant and not modify it 795 * in any way. 796 */ 797 JNIEXPORT const char * JNICALL 798 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 799 800 /* 801 * Returns the name of the field refered to at a given constant pool 802 * index. 803 * 804 * The result is in UTF format and remains valid until JVM_ReleaseUTF 805 * is called. 806 * 807 * The caller must treat the string as a constant and not modify it 808 * in any way. 809 */ 810 JNIEXPORT const char * JNICALL 811 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 812 813 /* 814 * Returns the name of the method refered to at a given constant pool 815 * index. 816 * 817 * The result is in UTF format and remains valid until JVM_ReleaseUTF 818 * is called. 819 * 820 * The caller must treat the string as a constant and not modify it 821 * in any way. 822 */ 823 JNIEXPORT const char * JNICALL 824 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 825 826 /* 827 * Returns the signature of the method refered to at a given constant pool 828 * index. 829 * 830 * The result is in UTF format and remains valid until JVM_ReleaseUTF 831 * is called. 832 * 833 * The caller must treat the string as a constant and not modify it 834 * in any way. 835 */ 836 JNIEXPORT const char * JNICALL 837 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 838 839 /* 840 * Returns the signature of the field refered to at a given constant pool 841 * index. 842 * 843 * The result is in UTF format and remains valid until JVM_ReleaseUTF 844 * is called. 845 * 846 * The caller must treat the string as a constant and not modify it 847 * in any way. 848 */ 849 JNIEXPORT const char * JNICALL 850 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 851 852 /* 853 * Returns the class name refered to at a given constant pool index. 854 * 855 * The result is in UTF format and remains valid until JVM_ReleaseUTF 856 * is called. 857 * 858 * The caller must treat the string as a constant and not modify it 859 * in any way. 860 */ 861 JNIEXPORT const char * JNICALL 862 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 863 864 /* 865 * Returns the class name refered to at a given constant pool index. 866 * 867 * The constant pool entry must refer to a CONSTANT_Fieldref. 868 * 869 * The result is in UTF format and remains valid until JVM_ReleaseUTF 870 * is called. 871 * 872 * The caller must treat the string as a constant and not modify it 873 * in any way. 874 */ 875 JNIEXPORT const char * JNICALL 876 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 877 878 /* 879 * Returns the class name refered to at a given constant pool index. 880 * 881 * The constant pool entry must refer to CONSTANT_Methodref or 882 * CONSTANT_InterfaceMethodref. 883 * 884 * The result is in UTF format and remains valid until JVM_ReleaseUTF 885 * is called. 886 * 887 * The caller must treat the string as a constant and not modify it 888 * in any way. 889 */ 890 JNIEXPORT const char * JNICALL 891 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 892 893 /* 894 * Returns the modifiers of a field in calledClass. The field is 895 * referred to in class cb at constant pool entry index. 896 * 897 * The caller must treat the string as a constant and not modify it 898 * in any way. 899 * 900 * Returns -1 if the field does not exist in calledClass. 901 */ 902 JNIEXPORT jint JNICALL 903 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 904 905 /* 906 * Returns the modifiers of a method in calledClass. The method is 907 * referred to in class cb at constant pool entry index. 908 * 909 * Returns -1 if the method does not exist in calledClass. 910 */ 911 JNIEXPORT jint JNICALL 912 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 913 914 /* 915 * Releases the UTF string obtained from the VM. 916 */ 917 JNIEXPORT void JNICALL 918 JVM_ReleaseUTF(const char *utf); 919 920 /* 921 * Compare if two classes are in the same package. 922 */ 923 JNIEXPORT jboolean JNICALL 924 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 925 926 /* Constants in class files */ 927 928 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */ 929 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */ 930 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */ 931 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */ 932 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */ 933 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */ 934 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */ 935 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */ 936 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */ 937 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */ 938 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */ 939 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */ 940 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */ 941 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */ 942 #define JVM_ACC_STRICT 0x0800 /* strict floating point */ 943 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */ 944 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */ 945 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */ 946 #define JVM_ACC_MODULE 0x8000 /* module-info class file */ 947 948 #define JVM_ACC_PUBLIC_BIT 0 949 #define JVM_ACC_PRIVATE_BIT 1 950 #define JVM_ACC_PROTECTED_BIT 2 951 #define JVM_ACC_STATIC_BIT 3 952 #define JVM_ACC_FINAL_BIT 4 953 #define JVM_ACC_SYNCHRONIZED_BIT 5 954 #define JVM_ACC_SUPER_BIT 5 955 #define JVM_ACC_VOLATILE_BIT 6 956 #define JVM_ACC_BRIDGE_BIT 6 957 #define JVM_ACC_TRANSIENT_BIT 7 958 #define JVM_ACC_VARARGS_BIT 7 959 #define JVM_ACC_NATIVE_BIT 8 960 #define JVM_ACC_INTERFACE_BIT 9 961 #define JVM_ACC_ABSTRACT_BIT 10 962 #define JVM_ACC_STRICT_BIT 11 963 #define JVM_ACC_SYNTHETIC_BIT 12 964 #define JVM_ACC_ANNOTATION_BIT 13 965 #define JVM_ACC_ENUM_BIT 14 966 967 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java 968 enum { 969 JVM_CONSTANT_Utf8 = 1, 970 JVM_CONSTANT_Unicode, /* unused */ 971 JVM_CONSTANT_Integer, 972 JVM_CONSTANT_Float, 973 JVM_CONSTANT_Long, 974 JVM_CONSTANT_Double, 975 JVM_CONSTANT_Class, 976 JVM_CONSTANT_String, 977 JVM_CONSTANT_Fieldref, 978 JVM_CONSTANT_Methodref, 979 JVM_CONSTANT_InterfaceMethodref, 980 JVM_CONSTANT_NameAndType, 981 JVM_CONSTANT_MethodHandle = 15, // JSR 292 982 JVM_CONSTANT_MethodType = 16, // JSR 292 983 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only 984 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292 985 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles 986 }; 987 988 /* JVM_CONSTANT_MethodHandle subtypes */ 989 enum { 990 JVM_REF_getField = 1, 991 JVM_REF_getStatic = 2, 992 JVM_REF_putField = 3, 993 JVM_REF_putStatic = 4, 994 JVM_REF_invokeVirtual = 5, 995 JVM_REF_invokeStatic = 6, 996 JVM_REF_invokeSpecial = 7, 997 JVM_REF_newInvokeSpecial = 8, 998 JVM_REF_invokeInterface = 9 999 }; 1000 1001 /* Used in the newarray instruction. */ 1002 1003 #define JVM_T_BOOLEAN 4 1004 #define JVM_T_CHAR 5 1005 #define JVM_T_FLOAT 6 1006 #define JVM_T_DOUBLE 7 1007 #define JVM_T_BYTE 8 1008 #define JVM_T_SHORT 9 1009 #define JVM_T_INT 10 1010 #define JVM_T_LONG 11 1011 1012 /* JVM method signatures */ 1013 1014 #define JVM_SIGNATURE_ARRAY '[' 1015 #define JVM_SIGNATURE_BYTE 'B' 1016 #define JVM_SIGNATURE_CHAR 'C' 1017 #define JVM_SIGNATURE_CLASS 'L' 1018 #define JVM_SIGNATURE_ENDCLASS ';' 1019 #define JVM_SIGNATURE_ENUM 'E' 1020 #define JVM_SIGNATURE_FLOAT 'F' 1021 #define JVM_SIGNATURE_DOUBLE 'D' 1022 #define JVM_SIGNATURE_FUNC '(' 1023 #define JVM_SIGNATURE_ENDFUNC ')' 1024 #define JVM_SIGNATURE_INT 'I' 1025 #define JVM_SIGNATURE_LONG 'J' 1026 #define JVM_SIGNATURE_SHORT 'S' 1027 #define JVM_SIGNATURE_VOID 'V' 1028 #define JVM_SIGNATURE_BOOLEAN 'Z' 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 JNIEXPORT int 1162 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1163 1164 JNIEXPORT int 1165 jio_snprintf(char *str, size_t count, const char *fmt, ...); 1166 1167 JNIEXPORT int 1168 jio_fprintf(FILE *, const char *fmt, ...); 1169 1170 JNIEXPORT int 1171 jio_vfprintf(FILE *, const char *fmt, va_list args); 1172 1173 1174 JNIEXPORT void * JNICALL 1175 JVM_RawMonitorCreate(void); 1176 1177 JNIEXPORT void JNICALL 1178 JVM_RawMonitorDestroy(void *mon); 1179 1180 JNIEXPORT jint JNICALL 1181 JVM_RawMonitorEnter(void *mon); 1182 1183 JNIEXPORT void JNICALL 1184 JVM_RawMonitorExit(void *mon); 1185 1186 /* 1187 * java.lang.reflect.Method 1188 */ 1189 JNIEXPORT jobject JNICALL 1190 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 1191 1192 /* 1193 * java.lang.reflect.Constructor 1194 */ 1195 JNIEXPORT jobject JNICALL 1196 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 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 defined 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_attachable : 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 defined 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 #ifdef __cplusplus 1341 } /* extern "C" */ 1342 #endif /* __cplusplus */ 1343 1344 #endif /* !_JAVASOFT_JVM_H_ */ 1345 1346 #endif // SHARE_VM_PRIMS_JVM_H