1 /* 2 * Copyright (c) 1997, 2015, 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 jint JNICALL 205 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable); 206 207 JNIEXPORT jobject JNICALL 208 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index); 209 210 /* 211 * java.lang.StackWalker 212 */ 213 enum { 214 JVM_STACKWALK_FILL_CLASS_REFS_ONLY = 0x2, 215 JVM_STACKWALK_FILTER_FILL_IN_STACK_TRACE = 0x10, 216 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20, 217 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100 218 }; 219 220 JNIEXPORT jobject JNICALL 221 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode, 222 jint skip_frames, jint frame_count, jint start_index, 223 jobjectArray classes, 224 jobjectArray frames); 225 226 JNIEXPORT jint JNICALL 227 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor, 228 jint frame_count, jint start_index, 229 jobjectArray classes, 230 jobjectArray frames); 231 232 JNIEXPORT void JNICALL 233 JVM_FillStackFrames(JNIEnv* env, jclass cls, 234 jint start_index, 235 jobjectArray frames, 236 jint from_index, jint toIndex); 237 238 JNIEXPORT void JNICALL 239 JVM_SetMethodInfo(JNIEnv* env, jobject frame); 240 241 /* 242 * java.lang.Thread 243 */ 244 JNIEXPORT void JNICALL 245 JVM_StartThread(JNIEnv *env, jobject thread); 246 247 JNIEXPORT void JNICALL 248 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception); 249 250 JNIEXPORT jboolean JNICALL 251 JVM_IsThreadAlive(JNIEnv *env, jobject thread); 252 253 JNIEXPORT void JNICALL 254 JVM_SuspendThread(JNIEnv *env, jobject thread); 255 256 JNIEXPORT void JNICALL 257 JVM_ResumeThread(JNIEnv *env, jobject thread); 258 259 JNIEXPORT void JNICALL 260 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio); 261 262 JNIEXPORT void JNICALL 263 JVM_Yield(JNIEnv *env, jclass threadClass); 264 265 JNIEXPORT void JNICALL 266 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis); 267 268 JNIEXPORT jobject JNICALL 269 JVM_CurrentThread(JNIEnv *env, jclass threadClass); 270 271 JNIEXPORT jint JNICALL 272 JVM_CountStackFrames(JNIEnv *env, jobject thread); 273 274 JNIEXPORT void JNICALL 275 JVM_Interrupt(JNIEnv *env, jobject thread); 276 277 JNIEXPORT jboolean JNICALL 278 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted); 279 280 JNIEXPORT jboolean JNICALL 281 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj); 282 283 JNIEXPORT void JNICALL 284 JVM_DumpAllStacks(JNIEnv *env, jclass unused); 285 286 JNIEXPORT jobjectArray JNICALL 287 JVM_GetAllThreads(JNIEnv *env, jclass dummy); 288 289 JNIEXPORT void JNICALL 290 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name); 291 292 /* getStackTrace() and getAllStackTraces() method */ 293 JNIEXPORT jobjectArray JNICALL 294 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads); 295 296 /* 297 * java.lang.SecurityManager 298 */ 299 JNIEXPORT jclass JNICALL 300 JVM_CurrentLoadedClass(JNIEnv *env); 301 302 JNIEXPORT jobject JNICALL 303 JVM_CurrentClassLoader(JNIEnv *env); 304 305 JNIEXPORT jobjectArray JNICALL 306 JVM_GetClassContext(JNIEnv *env); 307 308 JNIEXPORT jint JNICALL 309 JVM_ClassDepth(JNIEnv *env, jstring name); 310 311 JNIEXPORT jint JNICALL 312 JVM_ClassLoaderDepth(JNIEnv *env); 313 314 /* 315 * java.lang.Package 316 */ 317 JNIEXPORT jstring JNICALL 318 JVM_GetSystemPackage(JNIEnv *env, jstring name); 319 320 JNIEXPORT jobjectArray JNICALL 321 JVM_GetSystemPackages(JNIEnv *env); 322 323 /* 324 * java.io.ObjectInputStream 325 */ 326 JNIEXPORT jobject JNICALL 327 JVM_LatestUserDefinedLoader(JNIEnv *env); 328 329 /* 330 * java.lang.reflect.Array 331 */ 332 JNIEXPORT jint JNICALL 333 JVM_GetArrayLength(JNIEnv *env, jobject arr); 334 335 JNIEXPORT jobject JNICALL 336 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index); 337 338 JNIEXPORT jvalue JNICALL 339 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode); 340 341 JNIEXPORT void JNICALL 342 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val); 343 344 JNIEXPORT void JNICALL 345 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, 346 unsigned char vCode); 347 348 JNIEXPORT jobject JNICALL 349 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length); 350 351 JNIEXPORT jobject JNICALL 352 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim); 353 354 /* 355 * java.lang.Class and java.lang.ClassLoader 356 */ 357 358 #define JVM_CALLER_DEPTH -1 359 360 /* 361 * Returns the class in which the code invoking the native method 362 * belongs. 363 * 364 * Note that in JDK 1.1, native methods did not create a frame. 365 * In 1.2, they do. Therefore native methods like Class.forName 366 * can no longer look at the current frame for the caller class. 367 */ 368 JNIEXPORT jclass JNICALL 369 JVM_GetCallerClass(JNIEnv *env, int n); 370 371 /* 372 * Find primitive classes 373 * utf: class name 374 */ 375 JNIEXPORT jclass JNICALL 376 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf); 377 378 /* 379 * Find a class from a boot class loader. Returns NULL if class not found. 380 */ 381 JNIEXPORT jclass JNICALL 382 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name); 383 384 /* 385 * Find a class from a given class loader. Throws ClassNotFoundException. 386 * name: name of class 387 * init: whether initialization is done 388 * loader: class loader to look up the class. This may not be the same as the caller's 389 * class loader. 390 * caller: initiating class. The initiating class may be null when a security 391 * manager is not installed. 392 */ 393 JNIEXPORT jclass JNICALL 394 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init, 395 jobject loader, jclass caller); 396 397 /* 398 * Find a class from a given class. 399 */ 400 JNIEXPORT jclass JNICALL 401 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init, 402 jclass from); 403 404 /* Find a loaded class cached by the VM */ 405 JNIEXPORT jclass JNICALL 406 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name); 407 408 /* Define a class */ 409 JNIEXPORT jclass JNICALL 410 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, 411 jsize len, jobject pd); 412 413 /* Define a class with a source (added in JDK1.5) */ 414 JNIEXPORT jclass JNICALL 415 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, 416 const jbyte *buf, jsize len, jobject pd, 417 const char *source); 418 419 /* 420 * Reflection support functions 421 */ 422 423 JNIEXPORT jstring JNICALL 424 JVM_GetClassName(JNIEnv *env, jclass cls); 425 426 JNIEXPORT jobjectArray JNICALL 427 JVM_GetClassInterfaces(JNIEnv *env, jclass cls); 428 429 JNIEXPORT jboolean JNICALL 430 JVM_IsInterface(JNIEnv *env, jclass cls); 431 432 JNIEXPORT jobjectArray JNICALL 433 JVM_GetClassSigners(JNIEnv *env, jclass cls); 434 435 JNIEXPORT void JNICALL 436 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers); 437 438 JNIEXPORT jobject JNICALL 439 JVM_GetProtectionDomain(JNIEnv *env, jclass cls); 440 441 JNIEXPORT jboolean JNICALL 442 JVM_IsArrayClass(JNIEnv *env, jclass cls); 443 444 JNIEXPORT jboolean JNICALL 445 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls); 446 447 JNIEXPORT jint JNICALL 448 JVM_GetClassModifiers(JNIEnv *env, jclass cls); 449 450 JNIEXPORT jobjectArray JNICALL 451 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass); 452 453 JNIEXPORT jclass JNICALL 454 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass); 455 456 JNIEXPORT jstring JNICALL 457 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass); 458 459 /* Generics support (JDK 1.5) */ 460 JNIEXPORT jstring JNICALL 461 JVM_GetClassSignature(JNIEnv *env, jclass cls); 462 463 /* Annotations support (JDK 1.5) */ 464 JNIEXPORT jbyteArray JNICALL 465 JVM_GetClassAnnotations(JNIEnv *env, jclass cls); 466 467 /* Annotations support (JDK 1.6) */ 468 469 /* Type use annotations support (JDK 1.8) */ 470 471 JNIEXPORT jbyteArray JNICALL 472 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls); 473 474 // field is a handle to a java.lang.reflect.Field object 475 JNIEXPORT jbyteArray JNICALL 476 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field); 477 478 // method is a handle to a java.lang.reflect.Method object 479 JNIEXPORT jbyteArray JNICALL 480 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method); 481 482 /* 483 * New (JDK 1.4) reflection implementation 484 */ 485 486 JNIEXPORT jobjectArray JNICALL 487 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly); 488 489 JNIEXPORT jobjectArray JNICALL 490 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly); 491 492 JNIEXPORT jobjectArray JNICALL 493 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly); 494 495 /* Differs from JVM_GetClassModifiers in treatment of inner classes. 496 This returns the access flags for the class as specified in the 497 class file rather than searching the InnerClasses attribute (if 498 present) to find the source-level access flags. Only the values of 499 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be 500 valid. */ 501 JNIEXPORT jint JNICALL 502 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls); 503 504 /* 505 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5) 506 */ 507 508 JNIEXPORT jobject JNICALL 509 JVM_GetClassConstantPool(JNIEnv *env, jclass cls); 510 511 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize 512 (JNIEnv *env, jobject obj, jobject unused); 513 514 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt 515 (JNIEnv *env, jobject obj, jobject unused, jint index); 516 517 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded 518 (JNIEnv *env, jobject obj, jobject unused, jint index); 519 520 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt 521 (JNIEnv *env, jobject obj, jobject unused, jint index); 522 523 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded 524 (JNIEnv *env, jobject obj, jobject unused, jint index); 525 526 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt 527 (JNIEnv *env, jobject obj, jobject unused, jint index); 528 529 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded 530 (JNIEnv *env, jobject obj, jobject unused, jint index); 531 532 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt 533 (JNIEnv *env, jobject obj, jobject unused, jint index); 534 535 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt 536 (JNIEnv *env, jobject obj, jobject unused, jint index); 537 538 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt 539 (JNIEnv *env, jobject obj, jobject unused, jint index); 540 541 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt 542 (JNIEnv *env, jobject obj, jobject unused, jint index); 543 544 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt 545 (JNIEnv *env, jobject obj, jobject unused, jint index); 546 547 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt 548 (JNIEnv *env, jobject obj, jobject unused, jint index); 549 550 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt 551 (JNIEnv *env, jobject obj, jobject unused, jint index); 552 553 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt 554 (JNIEnv *env, jobject obj, jobject unused, jint index); 555 556 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt 557 (JNIEnv *env, jobject obj, jobject unused, jint index); 558 559 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At 560 (JNIEnv *env, jobject obj, jobject unused, jint index); 561 562 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt 563 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 564 565 /* 566 * java.security.* 567 */ 568 569 JNIEXPORT jobject JNICALL 570 JVM_DoPrivileged(JNIEnv *env, jclass cls, 571 jobject action, jobject context, jboolean wrapException); 572 573 JNIEXPORT jobject JNICALL 574 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls); 575 576 JNIEXPORT jobject JNICALL 577 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls); 578 579 /* 580 * Signal support, used to implement the shutdown sequence. Every VM must 581 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts 582 * (^C) and the latter for external termination (kill, system shutdown, etc.). 583 * Other platform-dependent signal values may also be supported. 584 */ 585 586 JNIEXPORT void * JNICALL 587 JVM_RegisterSignal(jint sig, void *handler); 588 589 JNIEXPORT jboolean JNICALL 590 JVM_RaiseSignal(jint sig); 591 592 JNIEXPORT jint JNICALL 593 JVM_FindSignal(const char *name); 594 595 /* 596 * Retrieve the assertion directives for the specified class. 597 */ 598 JNIEXPORT jboolean JNICALL 599 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls); 600 601 /* 602 * Retrieve the assertion directives from the VM. 603 */ 604 JNIEXPORT jobject JNICALL 605 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused); 606 607 /* 608 * java.util.concurrent.atomic.AtomicLong 609 */ 610 JNIEXPORT jboolean JNICALL 611 JVM_SupportsCX8(void); 612 613 /************************************************************************* 614 PART 2: Support for the Verifier and Class File Format Checker 615 ************************************************************************/ 616 /* 617 * Return the class name in UTF format. The result is valid 618 * until JVM_ReleaseUTf is called. 619 * 620 * The caller must treat the string as a constant and not modify it 621 * in any way. 622 */ 623 JNIEXPORT const char * JNICALL 624 JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 625 626 /* 627 * Returns the constant pool types in the buffer provided by "types." 628 */ 629 JNIEXPORT void JNICALL 630 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 631 632 /* 633 * Returns the number of Constant Pool entries. 634 */ 635 JNIEXPORT jint JNICALL 636 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 637 638 /* 639 * Returns the number of *declared* fields or methods. 640 */ 641 JNIEXPORT jint JNICALL 642 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 643 644 JNIEXPORT jint JNICALL 645 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 646 647 /* 648 * Returns the CP indexes of exceptions raised by a given method. 649 * Places the result in the given buffer. 650 * 651 * The method is identified by method_index. 652 */ 653 JNIEXPORT void JNICALL 654 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 655 unsigned short *exceptions); 656 /* 657 * Returns the number of exceptions raised by a given method. 658 * The method is identified by method_index. 659 */ 660 JNIEXPORT jint JNICALL 661 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 662 663 /* 664 * Returns the byte code sequence of a given method. 665 * Places the result in the given buffer. 666 * 667 * The method is identified by method_index. 668 */ 669 JNIEXPORT void JNICALL 670 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 671 unsigned char *code); 672 673 /* 674 * Returns the length of the byte code sequence of a given method. 675 * The method is identified by method_index. 676 */ 677 JNIEXPORT jint JNICALL 678 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 679 680 /* 681 * A structure used to a capture exception table entry in a Java method. 682 */ 683 typedef struct { 684 jint start_pc; 685 jint end_pc; 686 jint handler_pc; 687 jint catchType; 688 } JVM_ExceptionTableEntryType; 689 690 /* 691 * Returns the exception table entry at entry_index of a given method. 692 * Places the result in the given buffer. 693 * 694 * The method is identified by method_index. 695 */ 696 JNIEXPORT void JNICALL 697 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 698 jint entry_index, 699 JVM_ExceptionTableEntryType *entry); 700 701 /* 702 * Returns the length of the exception table of a given method. 703 * The method is identified by method_index. 704 */ 705 JNIEXPORT jint JNICALL 706 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 707 708 /* 709 * Returns the modifiers of a given field. 710 * The field is identified by field_index. 711 */ 712 JNIEXPORT jint JNICALL 713 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 714 715 /* 716 * Returns the modifiers of a given method. 717 * The method is identified by method_index. 718 */ 719 JNIEXPORT jint JNICALL 720 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 721 722 /* 723 * Returns the number of local variables of a given method. 724 * The method is identified by method_index. 725 */ 726 JNIEXPORT jint JNICALL 727 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 728 729 /* 730 * Returns the number of arguments (including this pointer) of a given method. 731 * The method is identified by method_index. 732 */ 733 JNIEXPORT jint JNICALL 734 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 735 736 /* 737 * Returns the maximum amount of stack (in words) used by a given method. 738 * The method is identified by method_index. 739 */ 740 JNIEXPORT jint JNICALL 741 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 742 743 /* 744 * Is a given method a constructor. 745 * The method is identified by method_index. 746 */ 747 JNIEXPORT jboolean JNICALL 748 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 749 750 /* 751 * Is the given method generated by the VM. 752 * The method is identified by method_index. 753 */ 754 JNIEXPORT jboolean JNICALL 755 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index); 756 757 /* 758 * Returns the name of a given method in UTF format. 759 * The result remains valid until JVM_ReleaseUTF is called. 760 * 761 * The caller must treat the string as a constant and not modify it 762 * in any way. 763 */ 764 JNIEXPORT const char * JNICALL 765 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 766 767 /* 768 * Returns the signature of a given method in UTF format. 769 * The result remains valid until JVM_ReleaseUTF is called. 770 * 771 * The caller must treat the string as a constant and not modify it 772 * in any way. 773 */ 774 JNIEXPORT const char * JNICALL 775 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 776 777 /* 778 * Returns the name of the field refered to at a given constant pool 779 * index. 780 * 781 * The result is in UTF format and remains valid until JVM_ReleaseUTF 782 * 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_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 789 790 /* 791 * Returns the name of the method refered to at a given constant pool 792 * index. 793 * 794 * The result is in UTF format and remains valid until JVM_ReleaseUTF 795 * is called. 796 * 797 * The caller must treat the string as a constant and not modify it 798 * in any way. 799 */ 800 JNIEXPORT const char * JNICALL 801 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 802 803 /* 804 * Returns the signature of the method refered to at a given constant pool 805 * index. 806 * 807 * The result is in UTF format and remains valid until JVM_ReleaseUTF 808 * is called. 809 * 810 * The caller must treat the string as a constant and not modify it 811 * in any way. 812 */ 813 JNIEXPORT const char * JNICALL 814 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 815 816 /* 817 * Returns the signature of the field refered to at a given constant pool 818 * index. 819 * 820 * The result is in UTF format and remains valid until JVM_ReleaseUTF 821 * is called. 822 * 823 * The caller must treat the string as a constant and not modify it 824 * in any way. 825 */ 826 JNIEXPORT const char * JNICALL 827 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 828 829 /* 830 * Returns the class name refered to at a given constant pool index. 831 * 832 * The result is in UTF format and remains valid until JVM_ReleaseUTF 833 * is called. 834 * 835 * The caller must treat the string as a constant and not modify it 836 * in any way. 837 */ 838 JNIEXPORT const char * JNICALL 839 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 840 841 /* 842 * Returns the class name refered to at a given constant pool index. 843 * 844 * The constant pool entry must refer to a CONSTANT_Fieldref. 845 * 846 * The result is in UTF format and remains valid until JVM_ReleaseUTF 847 * is called. 848 * 849 * The caller must treat the string as a constant and not modify it 850 * in any way. 851 */ 852 JNIEXPORT const char * JNICALL 853 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 854 855 /* 856 * Returns the class name refered to at a given constant pool index. 857 * 858 * The constant pool entry must refer to CONSTANT_Methodref or 859 * CONSTANT_InterfaceMethodref. 860 * 861 * The result is in UTF format and remains valid until JVM_ReleaseUTF 862 * is called. 863 * 864 * The caller must treat the string as a constant and not modify it 865 * in any way. 866 */ 867 JNIEXPORT const char * JNICALL 868 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 869 870 /* 871 * Returns the modifiers of a field in calledClass. The field is 872 * referred to in class cb at constant pool entry index. 873 * 874 * The caller must treat the string as a constant and not modify it 875 * in any way. 876 * 877 * Returns -1 if the field does not exist in calledClass. 878 */ 879 JNIEXPORT jint JNICALL 880 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 881 882 /* 883 * Returns the modifiers of a method in calledClass. The method is 884 * referred to in class cb at constant pool entry index. 885 * 886 * Returns -1 if the method does not exist in calledClass. 887 */ 888 JNIEXPORT jint JNICALL 889 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 890 891 /* 892 * Releases the UTF string obtained from the VM. 893 */ 894 JNIEXPORT void JNICALL 895 JVM_ReleaseUTF(const char *utf); 896 897 /* 898 * Compare if two classes are in the same package. 899 */ 900 JNIEXPORT jboolean JNICALL 901 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 902 903 /* Constants in class files */ 904 905 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */ 906 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */ 907 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */ 908 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */ 909 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */ 910 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */ 911 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */ 912 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */ 913 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */ 914 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */ 915 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */ 916 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */ 917 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */ 918 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */ 919 #define JVM_ACC_STRICT 0x0800 /* strict floating point */ 920 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */ 921 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */ 922 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */ 923 924 #define JVM_ACC_PUBLIC_BIT 0 925 #define JVM_ACC_PRIVATE_BIT 1 926 #define JVM_ACC_PROTECTED_BIT 2 927 #define JVM_ACC_STATIC_BIT 3 928 #define JVM_ACC_FINAL_BIT 4 929 #define JVM_ACC_SYNCHRONIZED_BIT 5 930 #define JVM_ACC_SUPER_BIT 5 931 #define JVM_ACC_VOLATILE_BIT 6 932 #define JVM_ACC_BRIDGE_BIT 6 933 #define JVM_ACC_TRANSIENT_BIT 7 934 #define JVM_ACC_VARARGS_BIT 7 935 #define JVM_ACC_NATIVE_BIT 8 936 #define JVM_ACC_INTERFACE_BIT 9 937 #define JVM_ACC_ABSTRACT_BIT 10 938 #define JVM_ACC_STRICT_BIT 11 939 #define JVM_ACC_SYNTHETIC_BIT 12 940 #define JVM_ACC_ANNOTATION_BIT 13 941 #define JVM_ACC_ENUM_BIT 14 942 943 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java 944 enum { 945 JVM_CONSTANT_Utf8 = 1, 946 JVM_CONSTANT_Unicode, /* unused */ 947 JVM_CONSTANT_Integer, 948 JVM_CONSTANT_Float, 949 JVM_CONSTANT_Long, 950 JVM_CONSTANT_Double, 951 JVM_CONSTANT_Class, 952 JVM_CONSTANT_String, 953 JVM_CONSTANT_Fieldref, 954 JVM_CONSTANT_Methodref, 955 JVM_CONSTANT_InterfaceMethodref, 956 JVM_CONSTANT_NameAndType, 957 JVM_CONSTANT_MethodHandle = 15, // JSR 292 958 JVM_CONSTANT_MethodType = 16, // JSR 292 959 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only 960 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292 961 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles 962 }; 963 964 /* JVM_CONSTANT_MethodHandle subtypes */ 965 enum { 966 JVM_REF_getField = 1, 967 JVM_REF_getStatic = 2, 968 JVM_REF_putField = 3, 969 JVM_REF_putStatic = 4, 970 JVM_REF_invokeVirtual = 5, 971 JVM_REF_invokeStatic = 6, 972 JVM_REF_invokeSpecial = 7, 973 JVM_REF_newInvokeSpecial = 8, 974 JVM_REF_invokeInterface = 9 975 }; 976 977 /* Used in the newarray instruction. */ 978 979 #define JVM_T_BOOLEAN 4 980 #define JVM_T_CHAR 5 981 #define JVM_T_FLOAT 6 982 #define JVM_T_DOUBLE 7 983 #define JVM_T_BYTE 8 984 #define JVM_T_SHORT 9 985 #define JVM_T_INT 10 986 #define JVM_T_LONG 11 987 988 /* JVM method signatures */ 989 990 #define JVM_SIGNATURE_ARRAY '[' 991 #define JVM_SIGNATURE_BYTE 'B' 992 #define JVM_SIGNATURE_CHAR 'C' 993 #define JVM_SIGNATURE_CLASS 'L' 994 #define JVM_SIGNATURE_ENDCLASS ';' 995 #define JVM_SIGNATURE_ENUM 'E' 996 #define JVM_SIGNATURE_FLOAT 'F' 997 #define JVM_SIGNATURE_DOUBLE 'D' 998 #define JVM_SIGNATURE_FUNC '(' 999 #define JVM_SIGNATURE_ENDFUNC ')' 1000 #define JVM_SIGNATURE_INT 'I' 1001 #define JVM_SIGNATURE_LONG 'J' 1002 #define JVM_SIGNATURE_SHORT 'S' 1003 #define JVM_SIGNATURE_VOID 'V' 1004 #define JVM_SIGNATURE_BOOLEAN 'Z' 1005 1006 /* 1007 * A function defined by the byte-code verifier and called by the VM. 1008 * This is not a function implemented in the VM. 1009 * 1010 * Returns JNI_FALSE if verification fails. A detailed error message 1011 * will be places in msg_buf, whose length is specified by buf_len. 1012 */ 1013 typedef jboolean (*verifier_fn_t)(JNIEnv *env, 1014 jclass cb, 1015 char * msg_buf, 1016 jint buf_len); 1017 1018 1019 /* 1020 * Support for a VM-independent class format checker. 1021 */ 1022 typedef struct { 1023 unsigned long code; /* byte code */ 1024 unsigned long excs; /* exceptions */ 1025 unsigned long etab; /* catch table */ 1026 unsigned long lnum; /* line number */ 1027 unsigned long lvar; /* local vars */ 1028 } method_size_info; 1029 1030 typedef struct { 1031 unsigned int constants; /* constant pool */ 1032 unsigned int fields; 1033 unsigned int methods; 1034 unsigned int interfaces; 1035 unsigned int fields2; /* number of static 2-word fields */ 1036 unsigned int innerclasses; /* # of records in InnerClasses attr */ 1037 1038 method_size_info clinit; /* memory used in clinit */ 1039 method_size_info main; /* used everywhere else */ 1040 } class_size_info; 1041 1042 /* 1043 * Functions defined in libjava.so to perform string conversions. 1044 * 1045 */ 1046 1047 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str); 1048 1049 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b); 1050 1051 /* This is the function defined in libjava.so that performs class 1052 * format checks. This functions fills in size information about 1053 * the class file and returns: 1054 * 1055 * 0: good 1056 * -1: out of memory 1057 * -2: bad format 1058 * -3: unsupported version 1059 * -4: bad class name 1060 */ 1061 1062 typedef jint (*check_format_fn_t)(char *class_name, 1063 unsigned char *data, 1064 unsigned int data_size, 1065 class_size_info *class_size, 1066 char *message_buffer, 1067 jint buffer_length, 1068 jboolean measure_only, 1069 jboolean check_relaxed); 1070 1071 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \ 1072 JVM_ACC_FINAL | \ 1073 JVM_ACC_SUPER | \ 1074 JVM_ACC_INTERFACE | \ 1075 JVM_ACC_ABSTRACT | \ 1076 JVM_ACC_ANNOTATION | \ 1077 JVM_ACC_ENUM | \ 1078 JVM_ACC_SYNTHETIC) 1079 1080 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \ 1081 JVM_ACC_PRIVATE | \ 1082 JVM_ACC_PROTECTED | \ 1083 JVM_ACC_STATIC | \ 1084 JVM_ACC_FINAL | \ 1085 JVM_ACC_VOLATILE | \ 1086 JVM_ACC_TRANSIENT | \ 1087 JVM_ACC_ENUM | \ 1088 JVM_ACC_SYNTHETIC) 1089 1090 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \ 1091 JVM_ACC_PRIVATE | \ 1092 JVM_ACC_PROTECTED | \ 1093 JVM_ACC_STATIC | \ 1094 JVM_ACC_FINAL | \ 1095 JVM_ACC_SYNCHRONIZED | \ 1096 JVM_ACC_BRIDGE | \ 1097 JVM_ACC_VARARGS | \ 1098 JVM_ACC_NATIVE | \ 1099 JVM_ACC_ABSTRACT | \ 1100 JVM_ACC_STRICT | \ 1101 JVM_ACC_SYNTHETIC) 1102 1103 /* 1104 * This is the function defined in libjava.so to perform path 1105 * canonicalization. VM call this function before opening jar files 1106 * to load system classes. 1107 * 1108 */ 1109 1110 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len); 1111 1112 /************************************************************************* 1113 PART 3: I/O and Network Support 1114 ************************************************************************/ 1115 1116 /* 1117 * Convert a pathname into native format. This function does syntactic 1118 * cleanup, such as removing redundant separator characters. It modifies 1119 * the given pathname string in place. 1120 */ 1121 JNIEXPORT char * JNICALL 1122 JVM_NativePath(char *); 1123 1124 /* 1125 * The standard printing functions supported by the Java VM. (Should they 1126 * be renamed to JVM_* in the future? 1127 */ 1128 1129 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3), 1130 * respectively, with the following differences: 1131 * - The string written to str is always zero-terminated, also in case of 1132 * truncation (count is too small to hold the result string), unless count 1133 * is 0. In case of truncation count-1 characters are written and '\0' 1134 * appendend. 1135 * - If count is too small to hold the whole string, -1 is returned across 1136 * all platforms. */ 1137 JNIEXPORT int 1138 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1139 1140 JNIEXPORT int 1141 jio_snprintf(char *str, size_t count, const char *fmt, ...); 1142 1143 JNIEXPORT int 1144 jio_fprintf(FILE *, const char *fmt, ...); 1145 1146 JNIEXPORT int 1147 jio_vfprintf(FILE *, const char *fmt, va_list args); 1148 1149 1150 JNIEXPORT void * JNICALL 1151 JVM_RawMonitorCreate(void); 1152 1153 JNIEXPORT void JNICALL 1154 JVM_RawMonitorDestroy(void *mon); 1155 1156 JNIEXPORT jint JNICALL 1157 JVM_RawMonitorEnter(void *mon); 1158 1159 JNIEXPORT void JNICALL 1160 JVM_RawMonitorExit(void *mon); 1161 1162 /* 1163 * java.lang.reflect.Method 1164 */ 1165 JNIEXPORT jobject JNICALL 1166 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 1167 1168 /* 1169 * java.lang.reflect.Constructor 1170 */ 1171 JNIEXPORT jobject JNICALL 1172 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 1173 1174 /* 1175 * java.lang.management support 1176 */ 1177 JNIEXPORT void* JNICALL 1178 JVM_GetManagement(jint version); 1179 1180 /* 1181 * com.sun.tools.attach.VirtualMachine support 1182 * 1183 * Initialize the agent properties with the properties maintained in the VM. 1184 */ 1185 JNIEXPORT jobject JNICALL 1186 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props); 1187 1188 JNIEXPORT jstring JNICALL 1189 JVM_GetTemporaryDirectory(JNIEnv *env); 1190 1191 /* Generics reflection support. 1192 * 1193 * Returns information about the given class's EnclosingMethod 1194 * attribute, if present, or null if the class had no enclosing 1195 * method. 1196 * 1197 * If non-null, the returned array contains three elements. Element 0 1198 * is the java.lang.Class of which the enclosing method is a member, 1199 * and elements 1 and 2 are the java.lang.Strings for the enclosing 1200 * method's name and descriptor, respectively. 1201 */ 1202 JNIEXPORT jobjectArray JNICALL 1203 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass); 1204 1205 /* ========================================================================= 1206 * The following defines a private JVM interface that the JDK can query 1207 * for the JVM version and capabilities. sun.misc.Version defines 1208 * the methods for getting the VM version and its capabilities. 1209 * 1210 * When a new bit is added, the following should be updated to provide 1211 * access to the new capability: 1212 * HS: JVM_GetVersionInfo and Abstract_VM_Version class 1213 * SDK: Version class 1214 * 1215 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for 1216 * JVM to query for the JDK version and capabilities. 1217 * 1218 * When a new bit is added, the following should be updated to provide 1219 * access to the new capability: 1220 * HS: JDK_Version class 1221 * SDK: JDK_GetVersionInfo0 1222 * 1223 * ========================================================================== 1224 */ 1225 typedef struct { 1226 unsigned int jvm_version; /* Encoded $VNUM as defined by JEP-223 */ 1227 unsigned int patch_version : 8; /* JEP-223 patch version */ 1228 unsigned int reserved3 : 8; 1229 unsigned int reserved1 : 16; 1230 unsigned int reserved2; 1231 1232 /* The following bits represents JVM supports that JDK has dependency on. 1233 * JDK can use these bits to determine which JVM version 1234 * and support it has to maintain runtime compatibility. 1235 * 1236 * When a new bit is added in a minor or update release, make sure 1237 * the new bit is also added in the main/baseline. 1238 */ 1239 unsigned int is_attachable : 1; 1240 unsigned int : 31; 1241 unsigned int : 32; 1242 unsigned int : 32; 1243 } jvm_version_info; 1244 1245 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1246 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1247 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8) 1248 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF)) 1249 1250 JNIEXPORT void JNICALL 1251 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size); 1252 1253 typedef struct { 1254 unsigned int jdk_version; /* Encoded $VNUM as defined by JEP-223 */ 1255 unsigned int patch_version : 8; /* JEP-223 patch version */ 1256 unsigned int reserved3 : 8; 1257 unsigned int reserved1 : 16; 1258 unsigned int reserved2; 1259 1260 /* The following bits represents new JDK supports that VM has dependency on. 1261 * VM implementation can use these bits to determine which JDK version 1262 * and support it has to maintain runtime compatibility. 1263 * 1264 * When a new bit is added in a minor or update release, make sure 1265 * the new bit is also added in the main/baseline. 1266 */ 1267 unsigned int thread_park_blocker : 1; 1268 unsigned int post_vm_init_hook_enabled : 1; 1269 unsigned int pending_list_uses_discovered_field : 1; 1270 unsigned int : 29; 1271 unsigned int : 32; 1272 unsigned int : 32; 1273 } jdk_version_info; 1274 1275 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1276 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1277 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8) 1278 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF)) 1279 1280 /* 1281 * This is the function JDK_GetVersionInfo0 defined in libjava.so 1282 * that is dynamically looked up by JVM. 1283 */ 1284 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size); 1285 1286 /* 1287 * This structure is used by the launcher to get the default thread 1288 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a 1289 * version of 1.1. As it is not supported otherwise, it has been removed 1290 * from jni.h 1291 */ 1292 typedef struct JDK1_1InitArgs { 1293 jint version; 1294 1295 char **properties; 1296 jint checkSource; 1297 jint nativeStackSize; 1298 jint javaStackSize; 1299 jint minHeapSize; 1300 jint maxHeapSize; 1301 jint verifyMode; 1302 char *classpath; 1303 1304 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args); 1305 void (JNICALL *exit)(jint code); 1306 void (JNICALL *abort)(void); 1307 1308 jint enableClassGC; 1309 jint enableVerboseGC; 1310 jint disableAsyncGC; 1311 jint verbose; 1312 jboolean debugging; 1313 jint debugPort; 1314 } JDK1_1InitArgs; 1315 1316 #ifdef __cplusplus 1317 } /* extern "C" */ 1318 #endif /* __cplusplus */ 1319 1320 #endif /* !_JAVASOFT_JVM_H_ */ 1321 1322 #endif // SHARE_VM_PRIMS_JVM_H --- EOF ---