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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef _JAVASOFT_JVM_H_ 27 #define _JAVASOFT_JVM_H_ 28 29 #include <sys/stat.h> 30 31 #include "jni.h" 32 #include "jvm_md.h" 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * This file contains additional functions exported from the VM. 40 * These functions are complementary to the standard JNI support. 41 * There are three parts to this file: 42 * 43 * First, this file contains the VM-related functions needed by native 44 * libraries in the standard Java API. For example, the java.lang.Object 45 * class needs VM-level functions that wait for and notify monitors. 46 * 47 * Second, this file contains the functions and constant definitions 48 * needed by the byte code verifier and class file format checker. 49 * These functions allow the verifier and format checker to be written 50 * in a VM-independent way. 51 * 52 * Third, this file contains various I/O and nerwork operations needed 53 * by the standard Java I/O and network APIs. 54 */ 55 56 /* 57 * Bump the version number when either of the following happens: 58 * 59 * 1. There is a change in JVM_* functions. 60 * 61 * 2. There is a change in the contract between VM and Java classes. 62 * For example, if the VM relies on a new private field in Thread 63 * class. 64 */ 65 66 #define JVM_INTERFACE_VERSION 4 67 68 JNIEXPORT jint JNICALL 69 JVM_GetInterfaceVersion(void); 70 71 /************************************************************************* 72 PART 1: Functions for Native Libraries 73 ************************************************************************/ 74 /* 75 * java.lang.Object 76 */ 77 JNIEXPORT jint JNICALL 78 JVM_IHashCode(JNIEnv *env, jobject obj); 79 80 JNIEXPORT void JNICALL 81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms); 82 83 JNIEXPORT void JNICALL 84 JVM_MonitorNotify(JNIEnv *env, jobject obj); 85 86 JNIEXPORT void JNICALL 87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj); 88 89 JNIEXPORT jobject JNICALL 90 JVM_Clone(JNIEnv *env, jobject obj); 91 92 /* 93 * java.lang.String 94 */ 95 JNIEXPORT jstring JNICALL 96 JVM_InternString(JNIEnv *env, jstring str); 97 98 /* 99 * java.lang.System 100 */ 101 JNIEXPORT jlong JNICALL 102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored); 103 104 JNIEXPORT jlong JNICALL 105 JVM_NanoTime(JNIEnv *env, jclass ignored); 106 107 JNIEXPORT void JNICALL 108 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos, 109 jobject dst, jint dst_pos, jint length); 110 111 JNIEXPORT jobject JNICALL 112 JVM_InitProperties(JNIEnv *env, jobject p); 113 114 /* 115 * java.io.File 116 */ 117 JNIEXPORT void JNICALL 118 JVM_OnExit(void (*func)(void)); 119 120 /* 121 * java.lang.Runtime 122 */ 123 JNIEXPORT void JNICALL 124 JVM_Exit(jint code); 125 126 JNIEXPORT void JNICALL 127 JVM_Halt(jint code); 128 129 JNIEXPORT void JNICALL 130 JVM_GC(void); 131 132 /* Returns the number of real-time milliseconds that have elapsed since the 133 * least-recently-inspected heap object was last inspected by the garbage 134 * collector. 135 * 136 * For simple stop-the-world collectors this value is just the time 137 * since the most recent collection. For generational collectors it is the 138 * time since the oldest generation was most recently collected. Other 139 * collectors are free to return a pessimistic estimate of the elapsed time, or 140 * simply the time since the last full collection was performed. 141 * 142 * Note that in the presence of reference objects, a given object that is no 143 * longer strongly reachable may have to be inspected multiple times before it 144 * can be reclaimed. 145 */ 146 JNIEXPORT jlong JNICALL 147 JVM_MaxObjectInspectionAge(void); 148 149 JNIEXPORT void JNICALL 150 JVM_TraceInstructions(jboolean on); 151 152 JNIEXPORT void JNICALL 153 JVM_TraceMethodCalls(jboolean on); 154 155 JNIEXPORT jlong JNICALL 156 JVM_TotalMemory(void); 157 158 JNIEXPORT jlong JNICALL 159 JVM_FreeMemory(void); 160 161 JNIEXPORT jlong JNICALL 162 JVM_MaxMemory(void); 163 164 JNIEXPORT jint JNICALL 165 JVM_ActiveProcessorCount(void); 166 167 JNIEXPORT void * JNICALL 168 JVM_LoadLibrary(const char *name); 169 170 JNIEXPORT void JNICALL 171 JVM_UnloadLibrary(void * handle); 172 173 JNIEXPORT void * JNICALL 174 JVM_FindLibraryEntry(void *handle, const char *name); 175 176 JNIEXPORT jboolean JNICALL 177 JVM_IsSupportedJNIVersion(jint version); 178 179 /* 180 * java.lang.Float and java.lang.Double 181 */ 182 JNIEXPORT jboolean JNICALL 183 JVM_IsNaN(jdouble d); 184 185 /* 186 * java.lang.Throwable 187 */ 188 JNIEXPORT void JNICALL 189 JVM_FillInStackTrace(JNIEnv *env, jobject throwable); 190 191 JNIEXPORT jint JNICALL 192 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable); 193 194 JNIEXPORT jobject JNICALL 195 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index); 196 197 /* 198 * java.lang.Compiler 199 */ 200 JNIEXPORT void JNICALL 201 JVM_InitializeCompiler (JNIEnv *env, jclass compCls); 202 203 JNIEXPORT jboolean JNICALL 204 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls); 205 206 JNIEXPORT jboolean JNICALL 207 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls); 208 209 JNIEXPORT jboolean JNICALL 210 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname); 211 212 JNIEXPORT jobject JNICALL 213 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg); 214 215 JNIEXPORT void JNICALL 216 JVM_EnableCompiler(JNIEnv *env, jclass compCls); 217 218 JNIEXPORT void JNICALL 219 JVM_DisableCompiler(JNIEnv *env, jclass compCls); 220 221 /* 222 * java.lang.Thread 223 */ 224 JNIEXPORT void JNICALL 225 JVM_StartThread(JNIEnv *env, jobject thread); 226 227 JNIEXPORT void JNICALL 228 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception); 229 230 JNIEXPORT jboolean JNICALL 231 JVM_IsThreadAlive(JNIEnv *env, jobject thread); 232 233 JNIEXPORT void JNICALL 234 JVM_SuspendThread(JNIEnv *env, jobject thread); 235 236 JNIEXPORT void JNICALL 237 JVM_ResumeThread(JNIEnv *env, jobject thread); 238 239 JNIEXPORT void JNICALL 240 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio); 241 242 JNIEXPORT void JNICALL 243 JVM_Yield(JNIEnv *env, jclass threadClass); 244 245 JNIEXPORT void JNICALL 246 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis); 247 248 JNIEXPORT jobject JNICALL 249 JVM_CurrentThread(JNIEnv *env, jclass threadClass); 250 251 JNIEXPORT jint JNICALL 252 JVM_CountStackFrames(JNIEnv *env, jobject thread); 253 254 JNIEXPORT void JNICALL 255 JVM_Interrupt(JNIEnv *env, jobject thread); 256 257 JNIEXPORT jboolean JNICALL 258 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted); 259 260 JNIEXPORT jboolean JNICALL 261 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj); 262 263 JNIEXPORT void JNICALL 264 JVM_DumpAllStacks(JNIEnv *env, jclass unused); 265 266 JNIEXPORT jobjectArray JNICALL 267 JVM_GetAllThreads(JNIEnv *env, jclass dummy); 268 269 JNIEXPORT void JNICALL 270 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name); 271 272 /* getStackTrace() and getAllStackTraces() method */ 273 JNIEXPORT jobjectArray JNICALL 274 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads); 275 276 /* 277 * java.lang.SecurityManager 278 */ 279 JNIEXPORT jclass JNICALL 280 JVM_CurrentLoadedClass(JNIEnv *env); 281 282 JNIEXPORT jobject JNICALL 283 JVM_CurrentClassLoader(JNIEnv *env); 284 285 JNIEXPORT jobjectArray JNICALL 286 JVM_GetClassContext(JNIEnv *env); 287 288 JNIEXPORT jint JNICALL 289 JVM_ClassDepth(JNIEnv *env, jstring name); 290 291 JNIEXPORT jint JNICALL 292 JVM_ClassLoaderDepth(JNIEnv *env); 293 294 /* 295 * java.lang.Package 296 */ 297 JNIEXPORT jstring JNICALL 298 JVM_GetSystemPackage(JNIEnv *env, jstring name); 299 300 JNIEXPORT jobjectArray JNICALL 301 JVM_GetSystemPackages(JNIEnv *env); 302 303 /* 304 * java.io.ObjectInputStream 305 */ 306 JNIEXPORT jobject JNICALL 307 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass, 308 jclass initClass); 309 310 JNIEXPORT jobject JNICALL 311 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass, 312 jint length); 313 314 JNIEXPORT jobject JNICALL 315 JVM_LatestUserDefinedLoader(JNIEnv *env); 316 317 /* 318 * This function has been deprecated and should not be considered 319 * part of the specified JVM interface. 320 */ 321 JNIEXPORT jclass JNICALL 322 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass, 323 jstring currClassName); 324 325 /* 326 * java.lang.reflect.Array 327 */ 328 JNIEXPORT jint JNICALL 329 JVM_GetArrayLength(JNIEnv *env, jobject arr); 330 331 JNIEXPORT jobject JNICALL 332 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index); 333 334 JNIEXPORT jvalue JNICALL 335 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode); 336 337 JNIEXPORT void JNICALL 338 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val); 339 340 JNIEXPORT void JNICALL 341 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, 342 unsigned char vCode); 343 344 JNIEXPORT jobject JNICALL 345 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length); 346 347 JNIEXPORT jobject JNICALL 348 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim); 349 350 /* 351 * java.lang.Class and java.lang.ClassLoader 352 */ 353 354 #define JVM_CALLER_DEPTH -1 355 356 /* 357 * Returns the immediate caller class of the native method invoking 358 * JVM_GetCallerClass. The Method.invoke and other frames due to 359 * reflection machinery are skipped. 360 * 361 * The depth parameter must be -1 (JVM_DEPTH). The caller is expected 362 * to be marked with sun.reflect.CallerSensitive. The JVM will throw 363 * an error if it is not marked propertly. 364 */ 365 JNIEXPORT jclass JNICALL 366 JVM_GetCallerClass(JNIEnv *env, int depth); 367 368 369 /* 370 * Find primitive classes 371 * utf: class name 372 */ 373 JNIEXPORT jclass JNICALL 374 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf); 375 376 /* 377 * Link the class 378 */ 379 JNIEXPORT void JNICALL 380 JVM_ResolveClass(JNIEnv *env, jclass cls); 381 382 /* 383 * Find a class from a boot class loader. Returns NULL if class not found. 384 */ 385 JNIEXPORT jclass JNICALL 386 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name); 387 388 /* 389 * Find a class from a given class loader. Throw ClassNotFoundException 390 * or NoClassDefFoundError depending on the value of the last 391 * argument. 392 */ 393 JNIEXPORT jclass JNICALL 394 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init, 395 jobject loader, jboolean throwError); 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 /* Generics support (JDK 1.5) */ 457 JNIEXPORT jstring JNICALL 458 JVM_GetClassSignature(JNIEnv *env, jclass cls); 459 460 /* Annotations support (JDK 1.5) */ 461 JNIEXPORT jbyteArray JNICALL 462 JVM_GetClassAnnotations(JNIEnv *env, jclass cls); 463 464 /* Type use annotations support (JDK 1.8) */ 465 466 JNIEXPORT jbyteArray JNICALL 467 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls); 468 469 JNIEXPORT jbyteArray JNICALL 470 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field); 471 472 JNIEXPORT jbyteArray JNICALL 473 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method); 474 475 /* 476 * New (JDK 1.4) reflection implementation 477 */ 478 479 JNIEXPORT jobjectArray JNICALL 480 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly); 481 482 JNIEXPORT jobjectArray JNICALL 483 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly); 484 485 JNIEXPORT jobjectArray JNICALL 486 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly); 487 488 /* Differs from JVM_GetClassModifiers in treatment of inner classes. 489 This returns the access flags for the class as specified in the 490 class file rather than searching the InnerClasses attribute (if 491 present) to find the source-level access flags. Only the values of 492 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be 493 valid. */ 494 JNIEXPORT jint JNICALL 495 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls); 496 497 /* The following two reflection routines are still needed due to startup time issues */ 498 /* 499 * java.lang.reflect.Method 500 */ 501 JNIEXPORT jobject JNICALL 502 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 503 504 /* 505 * java.lang.reflect.Constructor 506 */ 507 JNIEXPORT jobject JNICALL 508 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 509 510 /* 511 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5) 512 */ 513 514 JNIEXPORT jobject JNICALL 515 JVM_GetClassConstantPool(JNIEnv *env, jclass cls); 516 517 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize 518 (JNIEnv *env, jobject unused, jobject jcpool); 519 520 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt 521 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 522 523 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded 524 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 525 526 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt 527 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 528 529 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded 530 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 531 532 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt 533 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 534 535 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded 536 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 537 538 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt 539 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 540 541 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt 542 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 543 544 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt 545 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 546 547 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt 548 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 549 550 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt 551 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 552 553 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt 554 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 555 556 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At 557 (JNIEnv *env, jobject unused, jobject jcpool, jint index); 558 559 /* 560 * Parameter reflection 561 */ 562 563 JNIEXPORT jobjectArray JNICALL 564 JVM_GetMethodParameters(JNIEnv *env, jobject method); 565 566 /* 567 * java.security.* 568 */ 569 570 JNIEXPORT jobject JNICALL 571 JVM_DoPrivileged(JNIEnv *env, jclass cls, 572 jobject action, jobject context, jboolean wrapException); 573 574 JNIEXPORT jobject JNICALL 575 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls); 576 577 JNIEXPORT jobject JNICALL 578 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls); 579 580 /* 581 * Signal support, used to implement the shutdown sequence. Every VM must 582 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts 583 * (^C) and the latter for external termination (kill, system shutdown, etc.). 584 * Other platform-dependent signal values may also be supported. 585 */ 586 587 JNIEXPORT void * JNICALL 588 JVM_RegisterSignal(jint sig, void *handler); 589 590 JNIEXPORT jboolean JNICALL 591 JVM_RaiseSignal(jint sig); 592 593 JNIEXPORT jint JNICALL 594 JVM_FindSignal(const char *name); 595 596 /* 597 * Retrieve the assertion directives for the specified class. 598 */ 599 JNIEXPORT jboolean JNICALL 600 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls); 601 602 /* 603 * Retrieve the assertion directives from the VM. 604 */ 605 JNIEXPORT jobject JNICALL 606 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused); 607 608 /* 609 * java.util.concurrent.atomic.AtomicLong 610 */ 611 JNIEXPORT jboolean JNICALL 612 JVM_SupportsCX8(void); 613 614 /* 615 * com.sun.dtrace.jsdt support 616 */ 617 618 #define JVM_TRACING_DTRACE_VERSION 1 619 620 /* 621 * Structure to pass one probe description to JVM 622 */ 623 typedef struct { 624 jmethodID method; 625 jstring function; 626 jstring name; 627 void* reserved[4]; // for future use 628 } JVM_DTraceProbe; 629 630 /** 631 * Encapsulates the stability ratings for a DTrace provider field 632 */ 633 typedef struct { 634 jint nameStability; 635 jint dataStability; 636 jint dependencyClass; 637 } JVM_DTraceInterfaceAttributes; 638 639 /* 640 * Structure to pass one provider description to JVM 641 */ 642 typedef struct { 643 jstring name; 644 JVM_DTraceProbe* probes; 645 jint probe_count; 646 JVM_DTraceInterfaceAttributes providerAttributes; 647 JVM_DTraceInterfaceAttributes moduleAttributes; 648 JVM_DTraceInterfaceAttributes functionAttributes; 649 JVM_DTraceInterfaceAttributes nameAttributes; 650 JVM_DTraceInterfaceAttributes argsAttributes; 651 void* reserved[4]; // for future use 652 } JVM_DTraceProvider; 653 654 /* 655 * Get the version number the JVM was built with 656 */ 657 JNIEXPORT jint JNICALL 658 JVM_DTraceGetVersion(JNIEnv* env); 659 660 /* 661 * Register new probe with given signature, return global handle 662 * 663 * The version passed in is the version that the library code was 664 * built with. 665 */ 666 JNIEXPORT jlong JNICALL 667 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name, 668 jint providers_count, JVM_DTraceProvider* providers); 669 670 /* 671 * Check JSDT probe 672 */ 673 JNIEXPORT jboolean JNICALL 674 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method); 675 676 /* 677 * Destroy custom DOF 678 */ 679 JNIEXPORT void JNICALL 680 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle); 681 682 /* 683 * Check to see if DTrace is supported by OS 684 */ 685 JNIEXPORT jboolean JNICALL 686 JVM_DTraceIsSupported(JNIEnv* env); 687 688 /************************************************************************* 689 PART 2: Support for the Verifier and Class File Format Checker 690 ************************************************************************/ 691 /* 692 * Return the class name in UTF format. The result is valid 693 * until JVM_ReleaseUTf is called. 694 * 695 * The caller must treat the string as a constant and not modify it 696 * in any way. 697 */ 698 JNIEXPORT const char * JNICALL 699 JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 700 701 /* 702 * Returns the constant pool types in the buffer provided by "types." 703 */ 704 JNIEXPORT void JNICALL 705 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 706 707 /* 708 * Returns the number of Constant Pool entries. 709 */ 710 JNIEXPORT jint JNICALL 711 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 712 713 /* 714 * Returns the number of *declared* fields or methods. 715 */ 716 JNIEXPORT jint JNICALL 717 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 718 719 JNIEXPORT jint JNICALL 720 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 721 722 /* 723 * Returns the CP indexes of exceptions raised by 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_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 730 unsigned short *exceptions); 731 /* 732 * Returns the number of exceptions raised by a given method. 733 * The method is identified by method_index. 734 */ 735 JNIEXPORT jint JNICALL 736 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 737 738 /* 739 * Returns the byte code sequence of a given method. 740 * Places the result in the given buffer. 741 * 742 * The method is identified by method_index. 743 */ 744 JNIEXPORT void JNICALL 745 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 746 unsigned char *code); 747 748 /* 749 * Returns the length of the byte code sequence of a given method. 750 * The method is identified by method_index. 751 */ 752 JNIEXPORT jint JNICALL 753 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 754 755 /* 756 * A structure used to a capture exception table entry in a Java method. 757 */ 758 typedef struct { 759 jint start_pc; 760 jint end_pc; 761 jint handler_pc; 762 jint catchType; 763 } JVM_ExceptionTableEntryType; 764 765 /* 766 * Returns the exception table entry at entry_index of a given method. 767 * Places the result in the given buffer. 768 * 769 * The method is identified by method_index. 770 */ 771 JNIEXPORT void JNICALL 772 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 773 jint entry_index, 774 JVM_ExceptionTableEntryType *entry); 775 776 /* 777 * Returns the length of the exception table of a given method. 778 * The method is identified by method_index. 779 */ 780 JNIEXPORT jint JNICALL 781 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 782 783 /* 784 * Returns the modifiers of a given field. 785 * The field is identified by field_index. 786 */ 787 JNIEXPORT jint JNICALL 788 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 789 790 /* 791 * Returns the modifiers of a given method. 792 * The method is identified by method_index. 793 */ 794 JNIEXPORT jint JNICALL 795 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 796 797 /* 798 * Returns the number of local variables of a given method. 799 * The method is identified by method_index. 800 */ 801 JNIEXPORT jint JNICALL 802 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 803 804 /* 805 * Returns the number of arguments (including this pointer) of a given method. 806 * The method is identified by method_index. 807 */ 808 JNIEXPORT jint JNICALL 809 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 810 811 /* 812 * Returns the maximum amount of stack (in words) used by a given method. 813 * The method is identified by method_index. 814 */ 815 JNIEXPORT jint JNICALL 816 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 817 818 /* 819 * Is a given method a constructor. 820 * The method is identified by method_index. 821 */ 822 JNIEXPORT jboolean JNICALL 823 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 824 825 /* 826 * Is the given method generated by the VM. 827 * The method is identified by method_index. 828 */ 829 JNIEXPORT jboolean JNICALL 830 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index); 831 832 /* 833 * Returns the name of a given method in UTF format. 834 * The result remains valid until JVM_ReleaseUTF is called. 835 * 836 * The caller must treat the string as a constant and not modify it 837 * in any way. 838 */ 839 JNIEXPORT const char * JNICALL 840 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 841 842 /* 843 * Returns the signature of a given method in UTF format. 844 * The result remains valid until JVM_ReleaseUTF 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_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 851 852 /* 853 * Returns the name of the field referred to at a given constant pool 854 * index. 855 * 856 * The result is in UTF format and remains valid until JVM_ReleaseUTF 857 * is called. 858 * 859 * The caller must treat the string as a constant and not modify it 860 * in any way. 861 */ 862 JNIEXPORT const char * JNICALL 863 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 864 865 /* 866 * Returns the name of the method referred to at a given constant pool 867 * index. 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_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 877 878 /* 879 * Returns the signature of the method referred to at a given constant pool 880 * index. 881 * 882 * The result is in UTF format and remains valid until JVM_ReleaseUTF 883 * is called. 884 * 885 * The caller must treat the string as a constant and not modify it 886 * in any way. 887 */ 888 JNIEXPORT const char * JNICALL 889 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 890 891 /* 892 * Returns the signature of the field referred to at a given constant pool 893 * index. 894 * 895 * The result is in UTF format and remains valid until JVM_ReleaseUTF 896 * is called. 897 * 898 * The caller must treat the string as a constant and not modify it 899 * in any way. 900 */ 901 JNIEXPORT const char * JNICALL 902 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 903 904 /* 905 * Returns the class name referred to at a given constant pool index. 906 * 907 * The result is in UTF format and remains valid until JVM_ReleaseUTF 908 * is called. 909 * 910 * The caller must treat the string as a constant and not modify it 911 * in any way. 912 */ 913 JNIEXPORT const char * JNICALL 914 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 915 916 /* 917 * Returns the class name referred to at a given constant pool index. 918 * 919 * The constant pool entry must refer to a CONSTANT_Fieldref. 920 * 921 * The result is in UTF format and remains valid until JVM_ReleaseUTF 922 * is called. 923 * 924 * The caller must treat the string as a constant and not modify it 925 * in any way. 926 */ 927 JNIEXPORT const char * JNICALL 928 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 929 930 /* 931 * Returns the class name referred to at a given constant pool index. 932 * 933 * The constant pool entry must refer to CONSTANT_Methodref or 934 * CONSTANT_InterfaceMethodref. 935 * 936 * The result is in UTF format and remains valid until JVM_ReleaseUTF 937 * is called. 938 * 939 * The caller must treat the string as a constant and not modify it 940 * in any way. 941 */ 942 JNIEXPORT const char * JNICALL 943 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 944 945 /* 946 * Returns the modifiers of a field in calledClass. The field is 947 * referred to in class cb at constant pool entry index. 948 * 949 * The caller must treat the string as a constant and not modify it 950 * in any way. 951 * 952 * Returns -1 if the field does not exist in calledClass. 953 */ 954 JNIEXPORT jint JNICALL 955 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 956 957 /* 958 * Returns the modifiers of a method in calledClass. The method is 959 * referred to in class cb at constant pool entry index. 960 * 961 * Returns -1 if the method does not exist in calledClass. 962 */ 963 JNIEXPORT jint JNICALL 964 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 965 966 /* 967 * Releases the UTF string obtained from the VM. 968 */ 969 JNIEXPORT void JNICALL 970 JVM_ReleaseUTF(const char *utf); 971 972 /* 973 * Compare if two classes are in the same package. 974 */ 975 JNIEXPORT jboolean JNICALL 976 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 977 978 /* Get classfile constants */ 979 #include "classfile_constants.h" 980 981 /* 982 * A function defined by the byte-code verifier and called by the VM. 983 * This is not a function implemented in the VM. 984 * 985 * Returns JNI_FALSE if verification fails. A detailed error message 986 * will be places in msg_buf, whose length is specified by buf_len. 987 */ 988 typedef jboolean (*verifier_fn_t)(JNIEnv *env, 989 jclass cb, 990 char * msg_buf, 991 jint buf_len); 992 993 994 /* 995 * Support for a VM-independent class format checker. 996 */ 997 typedef struct { 998 unsigned long code; /* byte code */ 999 unsigned long excs; /* exceptions */ 1000 unsigned long etab; /* catch table */ 1001 unsigned long lnum; /* line number */ 1002 unsigned long lvar; /* local vars */ 1003 } method_size_info; 1004 1005 typedef struct { 1006 unsigned int constants; /* constant pool */ 1007 unsigned int fields; 1008 unsigned int methods; 1009 unsigned int interfaces; 1010 unsigned int fields2; /* number of static 2-word fields */ 1011 unsigned int innerclasses; /* # of records in InnerClasses attr */ 1012 1013 method_size_info clinit; /* memory used in clinit */ 1014 method_size_info main; /* used everywhere else */ 1015 } class_size_info; 1016 1017 /* 1018 * Functions defined in libjava.so to perform string conversions. 1019 * 1020 */ 1021 1022 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str); 1023 1024 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b); 1025 1026 /* This is the function defined in libjava.so that performs class 1027 * format checks. This functions fills in size information about 1028 * the class file and returns: 1029 * 1030 * 0: good 1031 * -1: out of memory 1032 * -2: bad format 1033 * -3: unsupported version 1034 * -4: bad class name 1035 */ 1036 1037 typedef jint (*check_format_fn_t)(char *class_name, 1038 unsigned char *data, 1039 unsigned int data_size, 1040 class_size_info *class_size, 1041 char *message_buffer, 1042 jint buffer_length, 1043 jboolean measure_only, 1044 jboolean check_relaxed); 1045 1046 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \ 1047 JVM_ACC_FINAL | \ 1048 JVM_ACC_SUPER | \ 1049 JVM_ACC_INTERFACE | \ 1050 JVM_ACC_ABSTRACT | \ 1051 JVM_ACC_ANNOTATION | \ 1052 JVM_ACC_ENUM | \ 1053 JVM_ACC_SYNTHETIC) 1054 1055 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \ 1056 JVM_ACC_PRIVATE | \ 1057 JVM_ACC_PROTECTED | \ 1058 JVM_ACC_STATIC | \ 1059 JVM_ACC_FINAL | \ 1060 JVM_ACC_VOLATILE | \ 1061 JVM_ACC_TRANSIENT | \ 1062 JVM_ACC_ENUM | \ 1063 JVM_ACC_SYNTHETIC) 1064 1065 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \ 1066 JVM_ACC_PRIVATE | \ 1067 JVM_ACC_PROTECTED | \ 1068 JVM_ACC_STATIC | \ 1069 JVM_ACC_FINAL | \ 1070 JVM_ACC_SYNCHRONIZED | \ 1071 JVM_ACC_BRIDGE | \ 1072 JVM_ACC_VARARGS | \ 1073 JVM_ACC_NATIVE | \ 1074 JVM_ACC_ABSTRACT | \ 1075 JVM_ACC_STRICT | \ 1076 JVM_ACC_SYNTHETIC) 1077 1078 /* 1079 * This is the function defined in libjava.so to perform path 1080 * canonicalization. VM call this function before opening jar files 1081 * to load system classes. 1082 * 1083 */ 1084 1085 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len); 1086 1087 /************************************************************************* 1088 PART 3: I/O and Network Support 1089 ************************************************************************/ 1090 1091 /* Note that the JVM IO functions are expected to return JVM_IO_ERR 1092 * when there is any kind of error. The caller can then use the 1093 * platform specific support (e.g., errno) to get the detailed 1094 * error info. The JVM_GetLastErrorString procedure may also be used 1095 * to obtain a descriptive error string. 1096 */ 1097 #define JVM_IO_ERR (-1) 1098 1099 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO 1100 * operation has been disrupted by Thread.interrupt. There are a 1101 * number of technical difficulties related to interruptible IO that 1102 * need to be solved. For example, most existing programs do not handle 1103 * InterruptedIOExceptions specially, they simply treat those as any 1104 * IOExceptions, which typically indicate fatal errors. 1105 * 1106 * There are also two modes of operation for interruptible IO. In the 1107 * resumption mode, an interrupted IO operation is guaranteed not to 1108 * have any side-effects, and can be restarted. In the termination mode, 1109 * an interrupted IO operation corrupts the underlying IO stream, so 1110 * that the only reasonable operation on an interrupted stream is to 1111 * close that stream. The resumption mode seems to be impossible to 1112 * implement on Win32 and Solaris. Implementing the termination mode is 1113 * easier, but it's not clear that's the right semantics. 1114 * 1115 * Interruptible IO is not supported on Win32.It can be enabled/disabled 1116 * using a compile-time flag on Solaris. Third-party JVM ports do not 1117 * need to implement interruptible IO. 1118 */ 1119 #define JVM_IO_INTR (-2) 1120 1121 /* Write a string into the given buffer, in the platform's local encoding, 1122 * that describes the most recent system-level error to occur in this thread. 1123 * Return the length of the string or zero if no error occurred. 1124 */ 1125 JNIEXPORT jint JNICALL 1126 JVM_GetLastErrorString(char *buf, int len); 1127 1128 /* 1129 * Convert a pathname into native format. This function does syntactic 1130 * cleanup, such as removing redundant separator characters. It modifies 1131 * the given pathname string in place. 1132 */ 1133 JNIEXPORT char * JNICALL 1134 JVM_NativePath(char *); 1135 1136 /* 1137 * JVM I/O error codes 1138 */ 1139 #define JVM_EEXIST -100 1140 1141 /* 1142 * Open a file descriptor. This function returns a negative error code 1143 * on error, and a non-negative integer that is the file descriptor on 1144 * success. 1145 */ 1146 JNIEXPORT jint JNICALL 1147 JVM_Open(const char *fname, jint flags, jint mode); 1148 1149 /* 1150 * Close a file descriptor. This function returns -1 on error, and 0 1151 * on success. 1152 * 1153 * fd the file descriptor to close. 1154 */ 1155 JNIEXPORT jint JNICALL 1156 JVM_Close(jint fd); 1157 1158 /* 1159 * Read data from a file decriptor into a char array. 1160 * 1161 * fd the file descriptor to read from. 1162 * buf the buffer where to put the read data. 1163 * nbytes the number of bytes to read. 1164 * 1165 * This function returns -1 on error, and 0 on success. 1166 */ 1167 JNIEXPORT jint JNICALL 1168 JVM_Read(jint fd, char *buf, jint nbytes); 1169 1170 /* 1171 * Write data from a char array to a file decriptor. 1172 * 1173 * fd the file descriptor to read from. 1174 * buf the buffer from which to fetch the data. 1175 * nbytes the number of bytes to write. 1176 * 1177 * This function returns -1 on error, and 0 on success. 1178 */ 1179 JNIEXPORT jint JNICALL 1180 JVM_Write(jint fd, char *buf, jint nbytes); 1181 1182 /* 1183 * Returns the number of bytes available for reading from a given file 1184 * descriptor 1185 */ 1186 JNIEXPORT jint JNICALL 1187 JVM_Available(jint fd, jlong *pbytes); 1188 1189 /* 1190 * Move the file descriptor pointer from whence by offset. 1191 * 1192 * fd the file descriptor to move. 1193 * offset the number of bytes to move it by. 1194 * whence the start from where to move it. 1195 * 1196 * This function returns the resulting pointer location. 1197 */ 1198 JNIEXPORT jlong JNICALL 1199 JVM_Lseek(jint fd, jlong offset, jint whence); 1200 1201 /* 1202 * Set the length of the file associated with the given descriptor to the given 1203 * length. If the new length is longer than the current length then the file 1204 * is extended; the contents of the extended portion are not defined. The 1205 * value of the file pointer is undefined after this procedure returns. 1206 */ 1207 JNIEXPORT jint JNICALL 1208 JVM_SetLength(jint fd, jlong length); 1209 1210 /* 1211 * Synchronize the file descriptor's in memory state with that of the 1212 * physical device. Return of -1 is an error, 0 is OK. 1213 */ 1214 JNIEXPORT jint JNICALL 1215 JVM_Sync(jint fd); 1216 1217 /* 1218 * Networking library support 1219 */ 1220 1221 JNIEXPORT jint JNICALL 1222 JVM_InitializeSocketLibrary(void); 1223 1224 struct sockaddr; 1225 1226 JNIEXPORT jint JNICALL 1227 JVM_Socket(jint domain, jint type, jint protocol); 1228 1229 JNIEXPORT jint JNICALL 1230 JVM_SocketClose(jint fd); 1231 1232 JNIEXPORT jint JNICALL 1233 JVM_SocketShutdown(jint fd, jint howto); 1234 1235 JNIEXPORT jint JNICALL 1236 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags); 1237 1238 JNIEXPORT jint JNICALL 1239 JVM_Send(jint fd, char *buf, jint nBytes, jint flags); 1240 1241 JNIEXPORT jint JNICALL 1242 JVM_Timeout(int fd, long timeout); 1243 1244 JNIEXPORT jint JNICALL 1245 JVM_Listen(jint fd, jint count); 1246 1247 JNIEXPORT jint JNICALL 1248 JVM_Connect(jint fd, struct sockaddr *him, jint len); 1249 1250 JNIEXPORT jint JNICALL 1251 JVM_Bind(jint fd, struct sockaddr *him, jint len); 1252 1253 JNIEXPORT jint JNICALL 1254 JVM_Accept(jint fd, struct sockaddr *him, jint *len); 1255 1256 JNIEXPORT jint JNICALL 1257 JVM_RecvFrom(jint fd, char *buf, int nBytes, 1258 int flags, struct sockaddr *from, int *fromlen); 1259 1260 JNIEXPORT jint JNICALL 1261 JVM_SendTo(jint fd, char *buf, int len, 1262 int flags, struct sockaddr *to, int tolen); 1263 1264 JNIEXPORT jint JNICALL 1265 JVM_SocketAvailable(jint fd, jint *result); 1266 1267 1268 JNIEXPORT jint JNICALL 1269 JVM_GetSockName(jint fd, struct sockaddr *him, int *len); 1270 1271 JNIEXPORT jint JNICALL 1272 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen); 1273 1274 JNIEXPORT jint JNICALL 1275 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen); 1276 1277 JNIEXPORT int JNICALL 1278 JVM_GetHostName(char* name, int namelen); 1279 1280 /* 1281 * The standard printing functions supported by the Java VM. (Should they 1282 * be renamed to JVM_* in the future? 1283 */ 1284 1285 /* 1286 * BE CAREFUL! The following functions do not implement the 1287 * full feature set of standard C printf formats. 1288 */ 1289 int 1290 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1291 1292 int 1293 jio_snprintf(char *str, size_t count, const char *fmt, ...); 1294 1295 int 1296 jio_fprintf(FILE *, const char *fmt, ...); 1297 1298 int 1299 jio_vfprintf(FILE *, const char *fmt, va_list args); 1300 1301 1302 JNIEXPORT void * JNICALL 1303 JVM_RawMonitorCreate(void); 1304 1305 JNIEXPORT void JNICALL 1306 JVM_RawMonitorDestroy(void *mon); 1307 1308 JNIEXPORT jint JNICALL 1309 JVM_RawMonitorEnter(void *mon); 1310 1311 JNIEXPORT void JNICALL 1312 JVM_RawMonitorExit(void *mon); 1313 1314 /* 1315 * java.lang.management support 1316 */ 1317 JNIEXPORT void* JNICALL 1318 JVM_GetManagement(jint version); 1319 1320 /* 1321 * com.sun.tools.attach.VirtualMachine support 1322 * 1323 * Initialize the agent properties with the properties maintained in the VM. 1324 */ 1325 JNIEXPORT jobject JNICALL 1326 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props); 1327 1328 JNIEXPORT jstring JNICALL 1329 JVM_GetTemporaryDirectory(JNIEnv *env); 1330 1331 /* Generics reflection support. 1332 * 1333 * Returns information about the given class's EnclosingMethod 1334 * attribute, if present, or null if the class had no enclosing 1335 * method. 1336 * 1337 * If non-null, the returned array contains three elements. Element 0 1338 * is the java.lang.Class of which the enclosing method is a member, 1339 * and elements 1 and 2 are the java.lang.Strings for the enclosing 1340 * method's name and descriptor, respectively. 1341 */ 1342 JNIEXPORT jobjectArray JNICALL 1343 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass); 1344 1345 /* 1346 * Java thread state support 1347 */ 1348 enum { 1349 JAVA_THREAD_STATE_NEW = 0, 1350 JAVA_THREAD_STATE_RUNNABLE = 1, 1351 JAVA_THREAD_STATE_BLOCKED = 2, 1352 JAVA_THREAD_STATE_WAITING = 3, 1353 JAVA_THREAD_STATE_TIMED_WAITING = 4, 1354 JAVA_THREAD_STATE_TERMINATED = 5, 1355 JAVA_THREAD_STATE_COUNT = 6 1356 }; 1357 1358 /* 1359 * Returns an array of the threadStatus values representing the 1360 * given Java thread state. Returns NULL if the VM version is 1361 * incompatible with the JDK or doesn't support the given 1362 * Java thread state. 1363 */ 1364 JNIEXPORT jintArray JNICALL 1365 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState); 1366 1367 /* 1368 * Returns an array of the substate names representing the 1369 * given Java thread state. Returns NULL if the VM version is 1370 * incompatible with the JDK or the VM doesn't support 1371 * the given Java thread state. 1372 * values must be the jintArray returned from JVM_GetThreadStateValues 1373 * and javaThreadState. 1374 */ 1375 JNIEXPORT jobjectArray JNICALL 1376 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values); 1377 1378 /* ========================================================================= 1379 * The following defines a private JVM interface that the JDK can query 1380 * for the JVM version and capabilities. sun.misc.Version defines 1381 * the methods for getting the VM version and its capabilities. 1382 * 1383 * When a new bit is added, the following should be updated to provide 1384 * access to the new capability: 1385 * HS: JVM_GetVersionInfo and Abstract_VM_Version class 1386 * SDK: Version class 1387 * 1388 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for 1389 * JVM to query for the JDK version and capabilities. 1390 * 1391 * When a new bit is added, the following should be updated to provide 1392 * access to the new capability: 1393 * HS: JDK_Version class 1394 * SDK: JDK_GetVersionInfo0 1395 * 1396 * ========================================================================== 1397 */ 1398 typedef struct { 1399 /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */ 1400 unsigned int jvm_version; /* Consists of major, minor, micro (n.n.n) */ 1401 /* and build number (xx) */ 1402 unsigned int update_version : 8; /* Update release version (uu) */ 1403 unsigned int special_update_version : 8; /* Special update release version (c)*/ 1404 unsigned int reserved1 : 16; 1405 unsigned int reserved2; 1406 1407 /* The following bits represents JVM supports that JDK has dependency on. 1408 * JDK can use these bits to determine which JVM version 1409 * and support it has to maintain runtime compatibility. 1410 * 1411 * When a new bit is added in a minor or update release, make sure 1412 * the new bit is also added in the main/baseline. 1413 */ 1414 unsigned int is_attach_supported : 1; 1415 unsigned int : 31; 1416 unsigned int : 32; 1417 unsigned int : 32; 1418 } jvm_version_info; 1419 1420 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1421 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1422 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1423 1424 /* Build number is available only for RE builds. 1425 * It will be zero for internal builds. 1426 */ 1427 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF)) 1428 1429 JNIEXPORT void JNICALL 1430 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size); 1431 1432 typedef struct { 1433 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx 1434 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */ 1435 /* and build number (xx) */ 1436 unsigned int update_version : 8; /* Update release version (uu) */ 1437 unsigned int special_update_version : 8; /* Special update release version (c)*/ 1438 unsigned int reserved1 : 16; 1439 unsigned int reserved2; 1440 1441 /* The following bits represents new JDK supports that VM has dependency on. 1442 * VM implementation can use these bits to determine which JDK version 1443 * and support it has to maintain runtime compatibility. 1444 * 1445 * When a new bit is added in a minor or update release, make sure 1446 * the new bit is also added in the main/baseline. 1447 */ 1448 unsigned int thread_park_blocker : 1; 1449 unsigned int post_vm_init_hook_enabled : 1; 1450 unsigned int pending_list_uses_discovered_field : 1; 1451 unsigned int : 29; 1452 unsigned int : 32; 1453 unsigned int : 32; 1454 } jdk_version_info; 1455 1456 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1457 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1458 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1459 1460 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN) 1461 * It will be zero for internal builds. 1462 */ 1463 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF)) 1464 1465 /* 1466 * This is the function JDK_GetVersionInfo0 defined in libjava.so 1467 * that is dynamically looked up by JVM. 1468 */ 1469 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size); 1470 1471 /* 1472 * This structure is used by the launcher to get the default thread 1473 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a 1474 * version of 1.1. As it is not supported otherwise, it has been removed 1475 * from jni.h 1476 */ 1477 typedef struct JDK1_1InitArgs { 1478 jint version; 1479 1480 char **properties; 1481 jint checkSource; 1482 jint nativeStackSize; 1483 jint javaStackSize; 1484 jint minHeapSize; 1485 jint maxHeapSize; 1486 jint verifyMode; 1487 char *classpath; 1488 1489 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args); 1490 void (JNICALL *exit)(jint code); 1491 void (JNICALL *abort)(void); 1492 1493 jint enableClassGC; 1494 jint enableVerboseGC; 1495 jint disableAsyncGC; 1496 jint verbose; 1497 jboolean debugging; 1498 jint debugPort; 1499 } JDK1_1InitArgs; 1500 1501 1502 #ifdef __cplusplus 1503 } /* extern "C" */ 1504 1505 #endif /* __cplusplus */ 1506 1507 #endif /* !_JAVASOFT_JVM_H_ */