1 /* 2 * Copyright (c) 1997, 2014, 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 4 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 void JNICALL 135 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos, 136 jobject dst, jint dst_pos, jint length); 137 138 JNIEXPORT jobject JNICALL 139 JVM_InitProperties(JNIEnv *env, jobject p); 140 141 JNIEXPORT void JNICALL 142 JVM_Halt(jint code); 143 144 JNIEXPORT void JNICALL 145 JVM_GC(void); 146 147 /* Returns the number of real-time milliseconds that have elapsed since the 148 * least-recently-inspected heap object was last inspected by the garbage 149 * collector. 150 * 151 * For simple stop-the-world collectors this value is just the time 152 * since the most recent collection. For generational collectors it is the 153 * time since the oldest generation was most recently collected. Other 154 * collectors are free to return a pessimistic estimate of the elapsed time, or 155 * simply the time since the last full collection was performed. 156 * 157 * Note that in the presence of reference objects, a given object that is no 158 * longer strongly reachable may have to be inspected multiple times before it 159 * can be reclaimed. 160 */ 161 JNIEXPORT jlong JNICALL 162 JVM_MaxObjectInspectionAge(void); 163 164 JNIEXPORT jlong JNICALL 165 JVM_TotalMemory(void); 166 167 JNIEXPORT jlong JNICALL 168 JVM_FreeMemory(void); 169 170 JNIEXPORT jlong JNICALL 171 JVM_MaxMemory(void); 172 173 JNIEXPORT jint JNICALL 174 JVM_ActiveProcessorCount(void); 175 176 JNIEXPORT void * JNICALL 177 JVM_LoadLibrary(const char *name); 178 179 JNIEXPORT void JNICALL 180 JVM_UnloadLibrary(void * handle); 181 182 JNIEXPORT void * JNICALL 183 JVM_FindLibraryEntry(void *handle, const char *name); 184 185 JNIEXPORT jboolean JNICALL 186 JVM_IsSupportedJNIVersion(jint version); 187 188 /* 189 * java.lang.Throwable 190 */ 191 JNIEXPORT void JNICALL 192 JVM_FillInStackTrace(JNIEnv *env, jobject throwable); 193 194 JNIEXPORT jint JNICALL 195 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable); 196 197 JNIEXPORT jobject JNICALL 198 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index); 199 200 /* 201 * java.lang.Thread 202 */ 203 JNIEXPORT void JNICALL 204 JVM_StartThread(JNIEnv *env, jobject thread); 205 206 JNIEXPORT void JNICALL 207 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception); 208 209 JNIEXPORT jboolean JNICALL 210 JVM_IsThreadAlive(JNIEnv *env, jobject thread); 211 212 JNIEXPORT void JNICALL 213 JVM_SuspendThread(JNIEnv *env, jobject thread); 214 215 JNIEXPORT void JNICALL 216 JVM_ResumeThread(JNIEnv *env, jobject thread); 217 218 JNIEXPORT void JNICALL 219 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio); 220 221 JNIEXPORT void JNICALL 222 JVM_Yield(JNIEnv *env, jclass threadClass); 223 224 JNIEXPORT void JNICALL 225 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis); 226 227 JNIEXPORT jobject JNICALL 228 JVM_CurrentThread(JNIEnv *env, jclass threadClass); 229 230 JNIEXPORT jint JNICALL 231 JVM_CountStackFrames(JNIEnv *env, jobject thread); 232 233 JNIEXPORT void JNICALL 234 JVM_Interrupt(JNIEnv *env, jobject thread); 235 236 JNIEXPORT jboolean JNICALL 237 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted); 238 239 JNIEXPORT jboolean JNICALL 240 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj); 241 242 JNIEXPORT void JNICALL 243 JVM_DumpAllStacks(JNIEnv *env, jclass unused); 244 245 JNIEXPORT jobjectArray JNICALL 246 JVM_GetAllThreads(JNIEnv *env, jclass dummy); 247 248 JNIEXPORT void JNICALL 249 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name); 250 251 /* getStackTrace() and getAllStackTraces() method */ 252 JNIEXPORT jobjectArray JNICALL 253 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads); 254 255 /* 256 * java.lang.SecurityManager 257 */ 258 JNIEXPORT jclass JNICALL 259 JVM_CurrentLoadedClass(JNIEnv *env); 260 261 JNIEXPORT jobject JNICALL 262 JVM_CurrentClassLoader(JNIEnv *env); 263 264 JNIEXPORT jobjectArray JNICALL 265 JVM_GetClassContext(JNIEnv *env); 266 267 JNIEXPORT jint JNICALL 268 JVM_ClassDepth(JNIEnv *env, jstring name); 269 270 JNIEXPORT jint JNICALL 271 JVM_ClassLoaderDepth(JNIEnv *env); 272 273 /* 274 * java.lang.Package 275 */ 276 JNIEXPORT jstring JNICALL 277 JVM_GetSystemPackage(JNIEnv *env, jstring name); 278 279 JNIEXPORT jobjectArray JNICALL 280 JVM_GetSystemPackages(JNIEnv *env); 281 282 /* 283 * java.io.ObjectInputStream 284 */ 285 JNIEXPORT jobject JNICALL 286 JVM_LatestUserDefinedLoader(JNIEnv *env); 287 288 /* 289 * java.lang.reflect.Array 290 */ 291 JNIEXPORT jint JNICALL 292 JVM_GetArrayLength(JNIEnv *env, jobject arr); 293 294 JNIEXPORT jobject JNICALL 295 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index); 296 297 JNIEXPORT jvalue JNICALL 298 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode); 299 300 JNIEXPORT void JNICALL 301 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val); 302 303 JNIEXPORT void JNICALL 304 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, 305 unsigned char vCode); 306 307 JNIEXPORT jobject JNICALL 308 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length); 309 310 JNIEXPORT jobject JNICALL 311 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim); 312 313 /* 314 * java.lang.Class and java.lang.ClassLoader 315 */ 316 317 #define JVM_CALLER_DEPTH -1 318 319 /* 320 * Returns the class in which the code invoking the native method 321 * belongs. 322 * 323 * Note that in JDK 1.1, native methods did not create a frame. 324 * In 1.2, they do. Therefore native methods like Class.forName 325 * can no longer look at the current frame for the caller class. 326 */ 327 JNIEXPORT jclass JNICALL 328 JVM_GetCallerClass(JNIEnv *env, int n); 329 330 /* 331 * Find primitive classes 332 * utf: class name 333 */ 334 JNIEXPORT jclass JNICALL 335 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf); 336 337 /* 338 * Find a class from a boot class loader. Returns NULL if class not found. 339 */ 340 JNIEXPORT jclass JNICALL 341 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name); 342 343 /* 344 * Find a class from a given class loader. Throws ClassNotFoundException. 345 * name: name of class 346 * init: whether initialization is done 347 * loader: class loader to look up the class. This may not be the same as the caller's 348 * class loader. 349 * caller: initiating class. The initiating class may be null when a security 350 * manager is not installed. 351 */ 352 JNIEXPORT jclass JNICALL 353 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init, 354 jobject loader, jclass caller); 355 356 /* 357 * Find a class from a given class. 358 */ 359 JNIEXPORT jclass JNICALL 360 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init, 361 jclass from); 362 363 /* Find a loaded class cached by the VM */ 364 JNIEXPORT jclass JNICALL 365 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name); 366 367 /* Define a class */ 368 JNIEXPORT jclass JNICALL 369 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, 370 jsize len, jobject pd); 371 372 /* Define a class with a source (added in JDK1.5) */ 373 JNIEXPORT jclass JNICALL 374 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, 375 const jbyte *buf, jsize len, jobject pd, 376 const char *source); 377 378 /* Define a class with a source with conditional verification (added HSX 14) 379 * -Xverify:all will verify anyway, -Xverify:none will not verify, 380 * -Xverify:remote (default) will obey this conditional 381 * i.e. true = should_verify_class 382 */ 383 JNIEXPORT jclass JNICALL 384 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name, 385 jobject loader, const jbyte *buf, 386 jsize len, jobject pd, const char *source, 387 jboolean verify); 388 389 /* 390 * Reflection support functions 391 */ 392 393 JNIEXPORT jstring JNICALL 394 JVM_GetClassName(JNIEnv *env, jclass cls); 395 396 JNIEXPORT jobjectArray JNICALL 397 JVM_GetClassInterfaces(JNIEnv *env, jclass cls); 398 399 JNIEXPORT jboolean JNICALL 400 JVM_IsInterface(JNIEnv *env, jclass cls); 401 402 JNIEXPORT jobjectArray JNICALL 403 JVM_GetClassSigners(JNIEnv *env, jclass cls); 404 405 JNIEXPORT void JNICALL 406 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers); 407 408 JNIEXPORT jobject JNICALL 409 JVM_GetProtectionDomain(JNIEnv *env, jclass cls); 410 411 JNIEXPORT jboolean JNICALL 412 JVM_IsArrayClass(JNIEnv *env, jclass cls); 413 414 JNIEXPORT jboolean JNICALL 415 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls); 416 417 JNIEXPORT jint JNICALL 418 JVM_GetClassModifiers(JNIEnv *env, jclass cls); 419 420 JNIEXPORT jobjectArray JNICALL 421 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass); 422 423 JNIEXPORT jclass JNICALL 424 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass); 425 426 /* Generics support (JDK 1.5) */ 427 JNIEXPORT jstring JNICALL 428 JVM_GetClassSignature(JNIEnv *env, jclass cls); 429 430 /* Annotations support (JDK 1.5) */ 431 JNIEXPORT jbyteArray JNICALL 432 JVM_GetClassAnnotations(JNIEnv *env, jclass cls); 433 434 /* Annotations support (JDK 1.6) */ 435 436 /* Type use annotations support (JDK 1.8) */ 437 438 JNIEXPORT jbyteArray JNICALL 439 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls); 440 441 // field is a handle to a java.lang.reflect.Field object 442 JNIEXPORT jbyteArray JNICALL 443 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field); 444 445 // method is a handle to a java.lang.reflect.Method object 446 JNIEXPORT jbyteArray JNICALL 447 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method); 448 449 /* 450 * New (JDK 1.4) reflection implementation 451 */ 452 453 JNIEXPORT jobjectArray JNICALL 454 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly); 455 456 JNIEXPORT jobjectArray JNICALL 457 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly); 458 459 JNIEXPORT jobjectArray JNICALL 460 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly); 461 462 /* Differs from JVM_GetClassModifiers in treatment of inner classes. 463 This returns the access flags for the class as specified in the 464 class file rather than searching the InnerClasses attribute (if 465 present) to find the source-level access flags. Only the values of 466 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be 467 valid. */ 468 JNIEXPORT jint JNICALL 469 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls); 470 471 /* 472 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5) 473 */ 474 475 JNIEXPORT jobject JNICALL 476 JVM_GetClassConstantPool(JNIEnv *env, jclass cls); 477 478 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize 479 (JNIEnv *env, jobject obj, jobject unused); 480 481 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt 482 (JNIEnv *env, jobject obj, jobject unused, jint index); 483 484 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded 485 (JNIEnv *env, jobject obj, jobject unused, jint index); 486 487 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt 488 (JNIEnv *env, jobject obj, jobject unused, jint index); 489 490 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded 491 (JNIEnv *env, jobject obj, jobject unused, jint index); 492 493 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt 494 (JNIEnv *env, jobject obj, jobject unused, jint index); 495 496 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded 497 (JNIEnv *env, jobject obj, jobject unused, jint index); 498 499 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt 500 (JNIEnv *env, jobject obj, jobject unused, jint index); 501 502 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt 503 (JNIEnv *env, jobject obj, jobject unused, jint index); 504 505 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt 506 (JNIEnv *env, jobject obj, jobject unused, jint index); 507 508 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt 509 (JNIEnv *env, jobject obj, jobject unused, jint index); 510 511 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt 512 (JNIEnv *env, jobject obj, jobject unused, jint index); 513 514 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt 515 (JNIEnv *env, jobject obj, jobject unused, jint index); 516 517 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At 518 (JNIEnv *env, jobject obj, jobject unused, jint index); 519 520 /* 521 * java.security.* 522 */ 523 524 JNIEXPORT jobject JNICALL 525 JVM_DoPrivileged(JNIEnv *env, jclass cls, 526 jobject action, jobject context, jboolean wrapException); 527 528 JNIEXPORT jobject JNICALL 529 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls); 530 531 JNIEXPORT jobject JNICALL 532 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls); 533 534 /* 535 * Signal support, used to implement the shutdown sequence. Every VM must 536 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts 537 * (^C) and the latter for external termination (kill, system shutdown, etc.). 538 * Other platform-dependent signal values may also be supported. 539 */ 540 541 JNIEXPORT void * JNICALL 542 JVM_RegisterSignal(jint sig, void *handler); 543 544 JNIEXPORT jboolean JNICALL 545 JVM_RaiseSignal(jint sig); 546 547 JNIEXPORT jint JNICALL 548 JVM_FindSignal(const char *name); 549 550 /* 551 * Retrieve the assertion directives for the specified class. 552 */ 553 JNIEXPORT jboolean JNICALL 554 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls); 555 556 /* 557 * Retrieve the assertion directives from the VM. 558 */ 559 JNIEXPORT jobject JNICALL 560 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused); 561 562 /* 563 * java.util.concurrent.atomic.AtomicLong 564 */ 565 JNIEXPORT jboolean JNICALL 566 JVM_SupportsCX8(void); 567 568 /* 569 * com.sun.dtrace.jsdt support 570 */ 571 572 #define JVM_TRACING_DTRACE_VERSION 1 573 574 /* 575 * Structure to pass one probe description to JVM. 576 * 577 * The VM will overwrite the definition of the referenced method with 578 * code that will fire the probe. 579 */ 580 typedef struct { 581 jmethodID method; 582 jstring function; 583 jstring name; 584 void* reserved[4]; // for future use 585 } JVM_DTraceProbe; 586 587 /** 588 * Encapsulates the stability ratings for a DTrace provider field 589 */ 590 typedef struct { 591 jint nameStability; 592 jint dataStability; 593 jint dependencyClass; 594 } JVM_DTraceInterfaceAttributes; 595 596 /* 597 * Structure to pass one provider description to JVM 598 */ 599 typedef struct { 600 jstring name; 601 JVM_DTraceProbe* probes; 602 jint probe_count; 603 JVM_DTraceInterfaceAttributes providerAttributes; 604 JVM_DTraceInterfaceAttributes moduleAttributes; 605 JVM_DTraceInterfaceAttributes functionAttributes; 606 JVM_DTraceInterfaceAttributes nameAttributes; 607 JVM_DTraceInterfaceAttributes argsAttributes; 608 void* reserved[4]; // for future use 609 } JVM_DTraceProvider; 610 611 /* 612 * Get the version number the JVM was built with 613 */ 614 JNIEXPORT jint JNICALL 615 JVM_DTraceGetVersion(JNIEnv* env); 616 617 /* 618 * Register new probe with given signature, return global handle 619 * 620 * The version passed in is the version that the library code was 621 * built with. 622 */ 623 JNIEXPORT jlong JNICALL 624 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name, 625 jint providers_count, JVM_DTraceProvider* providers); 626 627 /* 628 * Check JSDT probe 629 */ 630 JNIEXPORT jboolean JNICALL 631 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method); 632 633 /* 634 * Destroy custom DOF 635 */ 636 JNIEXPORT void JNICALL 637 JVM_DTraceDispose(JNIEnv* env, jlong handle); 638 639 /* 640 * Check to see if DTrace is supported by OS 641 */ 642 JNIEXPORT jboolean JNICALL 643 JVM_DTraceIsSupported(JNIEnv* env); 644 645 /************************************************************************* 646 PART 2: Support for the Verifier and Class File Format Checker 647 ************************************************************************/ 648 /* 649 * Return the class name in UTF format. The result is valid 650 * until JVM_ReleaseUTf is called. 651 * 652 * The caller must treat the string as a constant and not modify it 653 * in any way. 654 */ 655 JNIEXPORT const char * JNICALL 656 JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 657 658 /* 659 * Returns the constant pool types in the buffer provided by "types." 660 */ 661 JNIEXPORT void JNICALL 662 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 663 664 /* 665 * Returns the number of Constant Pool entries. 666 */ 667 JNIEXPORT jint JNICALL 668 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 669 670 /* 671 * Returns the number of *declared* fields or methods. 672 */ 673 JNIEXPORT jint JNICALL 674 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 675 676 JNIEXPORT jint JNICALL 677 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 678 679 /* 680 * Returns the CP indexes of exceptions raised by a given method. 681 * Places the result in the given buffer. 682 * 683 * The method is identified by method_index. 684 */ 685 JNIEXPORT void JNICALL 686 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 687 unsigned short *exceptions); 688 /* 689 * Returns the number of exceptions raised by a given method. 690 * The method is identified by method_index. 691 */ 692 JNIEXPORT jint JNICALL 693 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 694 695 /* 696 * Returns the byte code sequence of a given method. 697 * Places the result in the given buffer. 698 * 699 * The method is identified by method_index. 700 */ 701 JNIEXPORT void JNICALL 702 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 703 unsigned char *code); 704 705 /* 706 * Returns the length of the byte code sequence of a given method. 707 * The method is identified by method_index. 708 */ 709 JNIEXPORT jint JNICALL 710 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 711 712 /* 713 * A structure used to a capture exception table entry in a Java method. 714 */ 715 typedef struct { 716 jint start_pc; 717 jint end_pc; 718 jint handler_pc; 719 jint catchType; 720 } JVM_ExceptionTableEntryType; 721 722 /* 723 * Returns the exception table entry at entry_index of a given method. 724 * Places the result in the given buffer. 725 * 726 * The method is identified by method_index. 727 */ 728 JNIEXPORT void JNICALL 729 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 730 jint entry_index, 731 JVM_ExceptionTableEntryType *entry); 732 733 /* 734 * Returns the length of the exception table of a given method. 735 * The method is identified by method_index. 736 */ 737 JNIEXPORT jint JNICALL 738 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 739 740 /* 741 * Returns the modifiers of a given field. 742 * The field is identified by field_index. 743 */ 744 JNIEXPORT jint JNICALL 745 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 746 747 /* 748 * Returns the modifiers of a given method. 749 * The method is identified by method_index. 750 */ 751 JNIEXPORT jint JNICALL 752 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 753 754 /* 755 * Returns the number of local variables of a given method. 756 * The method is identified by method_index. 757 */ 758 JNIEXPORT jint JNICALL 759 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 760 761 /* 762 * Returns the number of arguments (including this pointer) of a given method. 763 * The method is identified by method_index. 764 */ 765 JNIEXPORT jint JNICALL 766 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 767 768 /* 769 * Returns the maximum amount of stack (in words) used by a given method. 770 * The method is identified by method_index. 771 */ 772 JNIEXPORT jint JNICALL 773 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 774 775 /* 776 * Is a given method a constructor. 777 * The method is identified by method_index. 778 */ 779 JNIEXPORT jboolean JNICALL 780 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 781 782 /* 783 * Is the given method generated by the VM. 784 * The method is identified by method_index. 785 */ 786 JNIEXPORT jboolean JNICALL 787 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index); 788 789 /* 790 * Returns the name of a given method in UTF format. 791 * The result remains valid until JVM_ReleaseUTF is called. 792 * 793 * The caller must treat the string as a constant and not modify it 794 * in any way. 795 */ 796 JNIEXPORT const char * JNICALL 797 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 798 799 /* 800 * Returns the signature of a given method in UTF format. 801 * The result remains valid until JVM_ReleaseUTF is called. 802 * 803 * The caller must treat the string as a constant and not modify it 804 * in any way. 805 */ 806 JNIEXPORT const char * JNICALL 807 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 808 809 /* 810 * Returns the name of the field refered to at a given constant pool 811 * index. 812 * 813 * The result is in UTF format and remains valid until JVM_ReleaseUTF 814 * is called. 815 * 816 * The caller must treat the string as a constant and not modify it 817 * in any way. 818 */ 819 JNIEXPORT const char * JNICALL 820 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 821 822 /* 823 * Returns the name of the method refered to at a given constant pool 824 * index. 825 * 826 * The result is in UTF format and remains valid until JVM_ReleaseUTF 827 * is called. 828 * 829 * The caller must treat the string as a constant and not modify it 830 * in any way. 831 */ 832 JNIEXPORT const char * JNICALL 833 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 834 835 /* 836 * Returns the signature of the method refered to at a given constant pool 837 * index. 838 * 839 * The result is in UTF format and remains valid until JVM_ReleaseUTF 840 * is called. 841 * 842 * The caller must treat the string as a constant and not modify it 843 * in any way. 844 */ 845 JNIEXPORT const char * JNICALL 846 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 847 848 /* 849 * Returns the signature of the field refered to at a given constant pool 850 * index. 851 * 852 * The result is in UTF format and remains valid until JVM_ReleaseUTF 853 * is called. 854 * 855 * The caller must treat the string as a constant and not modify it 856 * in any way. 857 */ 858 JNIEXPORT const char * JNICALL 859 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 860 861 /* 862 * Returns the class name refered to at a given constant pool index. 863 * 864 * The result is in UTF format and remains valid until JVM_ReleaseUTF 865 * is called. 866 * 867 * The caller must treat the string as a constant and not modify it 868 * in any way. 869 */ 870 JNIEXPORT const char * JNICALL 871 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 872 873 /* 874 * Returns the class name refered to at a given constant pool index. 875 * 876 * The constant pool entry must refer to a CONSTANT_Fieldref. 877 * 878 * The result is in UTF format and remains valid until JVM_ReleaseUTF 879 * is called. 880 * 881 * The caller must treat the string as a constant and not modify it 882 * in any way. 883 */ 884 JNIEXPORT const char * JNICALL 885 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 886 887 /* 888 * Returns the class name refered to at a given constant pool index. 889 * 890 * The constant pool entry must refer to CONSTANT_Methodref or 891 * CONSTANT_InterfaceMethodref. 892 * 893 * The result is in UTF format and remains valid until JVM_ReleaseUTF 894 * 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_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 901 902 /* 903 * Returns the modifiers of a field in calledClass. The field is 904 * referred to in class cb at constant pool entry index. 905 * 906 * The caller must treat the string as a constant and not modify it 907 * in any way. 908 * 909 * Returns -1 if the field does not exist in calledClass. 910 */ 911 JNIEXPORT jint JNICALL 912 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 913 914 /* 915 * Returns the modifiers of a method in calledClass. The method is 916 * referred to in class cb at constant pool entry index. 917 * 918 * Returns -1 if the method does not exist in calledClass. 919 */ 920 JNIEXPORT jint JNICALL 921 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 922 923 /* 924 * Releases the UTF string obtained from the VM. 925 */ 926 JNIEXPORT void JNICALL 927 JVM_ReleaseUTF(const char *utf); 928 929 /* 930 * Compare if two classes are in the same package. 931 */ 932 JNIEXPORT jboolean JNICALL 933 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 934 935 /* Constants in class files */ 936 937 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */ 938 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */ 939 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */ 940 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */ 941 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */ 942 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */ 943 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */ 944 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */ 945 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */ 946 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */ 947 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */ 948 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */ 949 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */ 950 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */ 951 #define JVM_ACC_STRICT 0x0800 /* strict floating point */ 952 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */ 953 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */ 954 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */ 955 956 #define JVM_ACC_PUBLIC_BIT 0 957 #define JVM_ACC_PRIVATE_BIT 1 958 #define JVM_ACC_PROTECTED_BIT 2 959 #define JVM_ACC_STATIC_BIT 3 960 #define JVM_ACC_FINAL_BIT 4 961 #define JVM_ACC_SYNCHRONIZED_BIT 5 962 #define JVM_ACC_SUPER_BIT 5 963 #define JVM_ACC_VOLATILE_BIT 6 964 #define JVM_ACC_BRIDGE_BIT 6 965 #define JVM_ACC_TRANSIENT_BIT 7 966 #define JVM_ACC_VARARGS_BIT 7 967 #define JVM_ACC_NATIVE_BIT 8 968 #define JVM_ACC_INTERFACE_BIT 9 969 #define JVM_ACC_ABSTRACT_BIT 10 970 #define JVM_ACC_STRICT_BIT 11 971 #define JVM_ACC_SYNTHETIC_BIT 12 972 #define JVM_ACC_ANNOTATION_BIT 13 973 #define JVM_ACC_ENUM_BIT 14 974 975 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java 976 enum { 977 JVM_CONSTANT_Utf8 = 1, 978 JVM_CONSTANT_Unicode, /* unused */ 979 JVM_CONSTANT_Integer, 980 JVM_CONSTANT_Float, 981 JVM_CONSTANT_Long, 982 JVM_CONSTANT_Double, 983 JVM_CONSTANT_Class, 984 JVM_CONSTANT_String, 985 JVM_CONSTANT_Fieldref, 986 JVM_CONSTANT_Methodref, 987 JVM_CONSTANT_InterfaceMethodref, 988 JVM_CONSTANT_NameAndType, 989 JVM_CONSTANT_MethodHandle = 15, // JSR 292 990 JVM_CONSTANT_MethodType = 16, // JSR 292 991 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only 992 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292 993 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles 994 }; 995 996 /* JVM_CONSTANT_MethodHandle subtypes */ 997 enum { 998 JVM_REF_getField = 1, 999 JVM_REF_getStatic = 2, 1000 JVM_REF_putField = 3, 1001 JVM_REF_putStatic = 4, 1002 JVM_REF_invokeVirtual = 5, 1003 JVM_REF_invokeStatic = 6, 1004 JVM_REF_invokeSpecial = 7, 1005 JVM_REF_newInvokeSpecial = 8, 1006 JVM_REF_invokeInterface = 9 1007 }; 1008 1009 /* Used in the newarray instruction. */ 1010 1011 #define JVM_T_BOOLEAN 4 1012 #define JVM_T_CHAR 5 1013 #define JVM_T_FLOAT 6 1014 #define JVM_T_DOUBLE 7 1015 #define JVM_T_BYTE 8 1016 #define JVM_T_SHORT 9 1017 #define JVM_T_INT 10 1018 #define JVM_T_LONG 11 1019 1020 /* JVM method signatures */ 1021 1022 #define JVM_SIGNATURE_ARRAY '[' 1023 #define JVM_SIGNATURE_BYTE 'B' 1024 #define JVM_SIGNATURE_CHAR 'C' 1025 #define JVM_SIGNATURE_CLASS 'L' 1026 #define JVM_SIGNATURE_ENDCLASS ';' 1027 #define JVM_SIGNATURE_ENUM 'E' 1028 #define JVM_SIGNATURE_FLOAT 'F' 1029 #define JVM_SIGNATURE_DOUBLE 'D' 1030 #define JVM_SIGNATURE_FUNC '(' 1031 #define JVM_SIGNATURE_ENDFUNC ')' 1032 #define JVM_SIGNATURE_INT 'I' 1033 #define JVM_SIGNATURE_LONG 'J' 1034 #define JVM_SIGNATURE_SHORT 'S' 1035 #define JVM_SIGNATURE_VOID 'V' 1036 #define JVM_SIGNATURE_BOOLEAN 'Z' 1037 1038 /* 1039 * A function defined by the byte-code verifier and called by the VM. 1040 * This is not a function implemented in the VM. 1041 * 1042 * Returns JNI_FALSE if verification fails. A detailed error message 1043 * will be places in msg_buf, whose length is specified by buf_len. 1044 */ 1045 typedef jboolean (*verifier_fn_t)(JNIEnv *env, 1046 jclass cb, 1047 char * msg_buf, 1048 jint buf_len); 1049 1050 1051 /* 1052 * Support for a VM-independent class format checker. 1053 */ 1054 typedef struct { 1055 unsigned long code; /* byte code */ 1056 unsigned long excs; /* exceptions */ 1057 unsigned long etab; /* catch table */ 1058 unsigned long lnum; /* line number */ 1059 unsigned long lvar; /* local vars */ 1060 } method_size_info; 1061 1062 typedef struct { 1063 unsigned int constants; /* constant pool */ 1064 unsigned int fields; 1065 unsigned int methods; 1066 unsigned int interfaces; 1067 unsigned int fields2; /* number of static 2-word fields */ 1068 unsigned int innerclasses; /* # of records in InnerClasses attr */ 1069 1070 method_size_info clinit; /* memory used in clinit */ 1071 method_size_info main; /* used everywhere else */ 1072 } class_size_info; 1073 1074 /* 1075 * Functions defined in libjava.so to perform string conversions. 1076 * 1077 */ 1078 1079 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str); 1080 1081 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b); 1082 1083 /* This is the function defined in libjava.so that performs class 1084 * format checks. This functions fills in size information about 1085 * the class file and returns: 1086 * 1087 * 0: good 1088 * -1: out of memory 1089 * -2: bad format 1090 * -3: unsupported version 1091 * -4: bad class name 1092 */ 1093 1094 typedef jint (*check_format_fn_t)(char *class_name, 1095 unsigned char *data, 1096 unsigned int data_size, 1097 class_size_info *class_size, 1098 char *message_buffer, 1099 jint buffer_length, 1100 jboolean measure_only, 1101 jboolean check_relaxed); 1102 1103 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \ 1104 JVM_ACC_FINAL | \ 1105 JVM_ACC_SUPER | \ 1106 JVM_ACC_INTERFACE | \ 1107 JVM_ACC_ABSTRACT | \ 1108 JVM_ACC_ANNOTATION | \ 1109 JVM_ACC_ENUM | \ 1110 JVM_ACC_SYNTHETIC) 1111 1112 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \ 1113 JVM_ACC_PRIVATE | \ 1114 JVM_ACC_PROTECTED | \ 1115 JVM_ACC_STATIC | \ 1116 JVM_ACC_FINAL | \ 1117 JVM_ACC_VOLATILE | \ 1118 JVM_ACC_TRANSIENT | \ 1119 JVM_ACC_ENUM | \ 1120 JVM_ACC_SYNTHETIC) 1121 1122 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \ 1123 JVM_ACC_PRIVATE | \ 1124 JVM_ACC_PROTECTED | \ 1125 JVM_ACC_STATIC | \ 1126 JVM_ACC_FINAL | \ 1127 JVM_ACC_SYNCHRONIZED | \ 1128 JVM_ACC_BRIDGE | \ 1129 JVM_ACC_VARARGS | \ 1130 JVM_ACC_NATIVE | \ 1131 JVM_ACC_ABSTRACT | \ 1132 JVM_ACC_STRICT | \ 1133 JVM_ACC_SYNTHETIC) 1134 1135 /* 1136 * This is the function defined in libjava.so to perform path 1137 * canonicalization. VM call this function before opening jar files 1138 * to load system classes. 1139 * 1140 */ 1141 1142 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len); 1143 1144 /************************************************************************* 1145 PART 3: I/O and Network Support 1146 ************************************************************************/ 1147 1148 /* 1149 * Convert a pathname into native format. This function does syntactic 1150 * cleanup, such as removing redundant separator characters. It modifies 1151 * the given pathname string in place. 1152 */ 1153 JNIEXPORT char * JNICALL 1154 JVM_NativePath(char *); 1155 1156 /* 1157 * The standard printing functions supported by the Java VM. (Should they 1158 * be renamed to JVM_* in the future? 1159 */ 1160 1161 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3), 1162 * respectively, with the following differences: 1163 * - The string written to str is always zero-terminated, also in case of 1164 * truncation (count is too small to hold the result string), unless count 1165 * is 0. In case of truncation count-1 characters are written and '\0' 1166 * appendend. 1167 * - If count is too small to hold the whole string, -1 is returned across 1168 * all platforms. */ 1169 JNIEXPORT int 1170 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1171 1172 JNIEXPORT int 1173 jio_snprintf(char *str, size_t count, const char *fmt, ...); 1174 1175 JNIEXPORT int 1176 jio_fprintf(FILE *, const char *fmt, ...); 1177 1178 JNIEXPORT int 1179 jio_vfprintf(FILE *, const char *fmt, va_list args); 1180 1181 1182 JNIEXPORT void * JNICALL 1183 JVM_RawMonitorCreate(void); 1184 1185 JNIEXPORT void JNICALL 1186 JVM_RawMonitorDestroy(void *mon); 1187 1188 JNIEXPORT jint JNICALL 1189 JVM_RawMonitorEnter(void *mon); 1190 1191 JNIEXPORT void JNICALL 1192 JVM_RawMonitorExit(void *mon); 1193 1194 /* 1195 * java.lang.reflect.Method 1196 */ 1197 JNIEXPORT jobject JNICALL 1198 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 1199 1200 /* 1201 * java.lang.reflect.Constructor 1202 */ 1203 JNIEXPORT jobject JNICALL 1204 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 1205 1206 /* 1207 * java.lang.management support 1208 */ 1209 JNIEXPORT void* JNICALL 1210 JVM_GetManagement(jint version); 1211 1212 /* 1213 * com.sun.tools.attach.VirtualMachine support 1214 * 1215 * Initialize the agent properties with the properties maintained in the VM. 1216 */ 1217 JNIEXPORT jobject JNICALL 1218 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props); 1219 1220 JNIEXPORT jstring JNICALL 1221 JVM_GetTemporaryDirectory(JNIEnv *env); 1222 1223 /* Generics reflection support. 1224 * 1225 * Returns information about the given class's EnclosingMethod 1226 * attribute, if present, or null if the class had no enclosing 1227 * method. 1228 * 1229 * If non-null, the returned array contains three elements. Element 0 1230 * is the java.lang.Class of which the enclosing method is a member, 1231 * and elements 1 and 2 are the java.lang.Strings for the enclosing 1232 * method's name and descriptor, respectively. 1233 */ 1234 JNIEXPORT jobjectArray JNICALL 1235 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass); 1236 1237 /* ========================================================================= 1238 * The following defines a private JVM interface that the JDK can query 1239 * for the JVM version and capabilities. sun.misc.Version defines 1240 * the methods for getting the VM version and its capabilities. 1241 * 1242 * When a new bit is added, the following should be updated to provide 1243 * access to the new capability: 1244 * HS: JVM_GetVersionInfo and Abstract_VM_Version class 1245 * SDK: Version class 1246 * 1247 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for 1248 * JVM to query for the JDK version and capabilities. 1249 * 1250 * When a new bit is added, the following should be updated to provide 1251 * access to the new capability: 1252 * HS: JDK_Version class 1253 * SDK: JDK_GetVersionInfo0 1254 * 1255 * ========================================================================== 1256 */ 1257 typedef struct { 1258 /* VM version string: follows the JDK release version naming convention */ 1259 unsigned int jvm_version; /* <major_ver>.<minor_ver>.<micro_ver>[-<identifier>][-<debug_target>][-b<nn>] */ 1260 unsigned int update_version : 8; 1261 unsigned int special_update_version : 8; 1262 unsigned int reserved1 : 16; 1263 unsigned int reserved2; 1264 1265 /* The following bits represents JVM supports that JDK has dependency on. 1266 * JDK can use these bits to determine which JVM version 1267 * and support it has to maintain runtime compatibility. 1268 * 1269 * When a new bit is added in a minor or update release, make sure 1270 * the new bit is also added in the main/baseline. 1271 */ 1272 unsigned int is_attachable : 1; 1273 unsigned int : 31; 1274 unsigned int : 32; 1275 unsigned int : 32; 1276 } jvm_version_info; 1277 1278 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1279 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1280 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1281 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF)) 1282 1283 JNIEXPORT void JNICALL 1284 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size); 1285 1286 typedef struct { 1287 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx 1288 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */ 1289 /* and build number (xx) */ 1290 unsigned int update_version : 8; /* Update release version (uu) */ 1291 unsigned int special_update_version : 8; /* Special update release version (c)*/ 1292 unsigned int reserved1 : 16; 1293 unsigned int reserved2; 1294 1295 /* The following bits represents new JDK supports that VM has dependency on. 1296 * VM implementation can use these bits to determine which JDK version 1297 * and support it has to maintain runtime compatibility. 1298 * 1299 * When a new bit is added in a minor or update release, make sure 1300 * the new bit is also added in the main/baseline. 1301 */ 1302 unsigned int thread_park_blocker : 1; 1303 unsigned int post_vm_init_hook_enabled : 1; 1304 unsigned int pending_list_uses_discovered_field : 1; 1305 unsigned int : 29; 1306 unsigned int : 32; 1307 unsigned int : 32; 1308 } jdk_version_info; 1309 1310 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1311 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1312 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1313 1314 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN) 1315 * It will be zero for internal builds. 1316 */ 1317 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF)) 1318 1319 /* 1320 * This is the function JDK_GetVersionInfo0 defined in libjava.so 1321 * that is dynamically looked up by JVM. 1322 */ 1323 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size); 1324 1325 /* 1326 * This structure is used by the launcher to get the default thread 1327 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a 1328 * version of 1.1. As it is not supported otherwise, it has been removed 1329 * from jni.h 1330 */ 1331 typedef struct JDK1_1InitArgs { 1332 jint version; 1333 1334 char **properties; 1335 jint checkSource; 1336 jint nativeStackSize; 1337 jint javaStackSize; 1338 jint minHeapSize; 1339 jint maxHeapSize; 1340 jint verifyMode; 1341 char *classpath; 1342 1343 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args); 1344 void (JNICALL *exit)(jint code); 1345 void (JNICALL *abort)(void); 1346 1347 jint enableClassGC; 1348 jint enableVerboseGC; 1349 jint disableAsyncGC; 1350 jint verbose; 1351 jboolean debugging; 1352 jint debugPort; 1353 } JDK1_1InitArgs; 1354 1355 #ifdef __cplusplus 1356 } /* extern "C" */ 1357 #endif /* __cplusplus */ 1358 1359 #endif /* !_JAVASOFT_JVM_H_ */ 1360 1361 #endif // SHARE_VM_PRIMS_JVM_H