jvm.h revision 0:a61af66fc99e
1/* 2 * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 * 23 */ 24 25#ifndef _JAVASOFT_JVM_H_ 26#define _JAVASOFT_JVM_H_ 27 28// HotSpot integration note: 29// 30// This file and jvm.h used with the JDK are identical, 31// except for the three includes removed below and the 32// SUPPORT_OLD_REFLECTION sections cut out of the JDK's jvm.h. 33 34// #include <sys/stat.h> 35// #include "jni.h" 36// #include "jvm_md.h" 37 38 39#ifdef __cplusplus 40extern "C" { 41#endif 42 43/* 44 * This file contains additional functions exported from the VM. 45 * These functions are complementary to the standard JNI support. 46 * There are three parts to this file: 47 * 48 * First, this file contains the VM-related functions needed by native 49 * libraries in the standard Java API. For example, the java.lang.Object 50 * class needs VM-level functions that wait for and notify monitors. 51 * 52 * Second, this file contains the functions and constant definitions 53 * needed by the byte code verifier and class file format checker. 54 * These functions allow the verifier and format checker to be written 55 * in a VM-independent way. 56 * 57 * Third, this file contains various I/O and nerwork operations needed 58 * by the standard Java I/O and network APIs. 59 */ 60 61/* 62 * Bump the version number when either of the following happens: 63 * 64 * 1. There is a change in JVM_* functions. 65 * 66 * 2. There is a change in the contract between VM and Java classes. 67 * For example, if the VM relies on a new private field in Thread 68 * class. 69 */ 70 71#define JVM_INTERFACE_VERSION 4 72 73 74JNIEXPORT jint JNICALL 75JVM_GetInterfaceVersion(void); 76 77/************************************************************************* 78 PART 1: Functions for Native Libraries 79 ************************************************************************/ 80/* 81 * java.lang.Object 82 */ 83JNIEXPORT jint JNICALL 84JVM_IHashCode(JNIEnv *env, jobject obj); 85 86JNIEXPORT void JNICALL 87JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms); 88 89JNIEXPORT void JNICALL 90JVM_MonitorNotify(JNIEnv *env, jobject obj); 91 92JNIEXPORT void JNICALL 93JVM_MonitorNotifyAll(JNIEnv *env, jobject obj); 94 95JNIEXPORT jobject JNICALL 96JVM_Clone(JNIEnv *env, jobject obj); 97 98/* 99 * java.lang.String 100 */ 101JNIEXPORT jstring JNICALL 102JVM_InternString(JNIEnv *env, jstring str); 103 104/* 105 * java.lang.System 106 */ 107JNIEXPORT jlong JNICALL 108JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored); 109 110JNIEXPORT jlong JNICALL 111JVM_NanoTime(JNIEnv *env, jclass ignored); 112 113JNIEXPORT void JNICALL 114JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos, 115 jobject dst, jint dst_pos, jint length); 116 117JNIEXPORT jobject JNICALL 118JVM_InitProperties(JNIEnv *env, jobject p); 119 120/* 121 * java.io.File 122 */ 123JNIEXPORT void JNICALL 124JVM_OnExit(void (*func)(void)); 125 126/* 127 * java.lang.Runtime 128 */ 129JNIEXPORT void JNICALL 130JVM_Exit(jint code); 131 132JNIEXPORT void JNICALL 133JVM_Halt(jint code); 134 135JNIEXPORT void JNICALL 136JVM_GC(void); 137 138/* Returns the number of real-time milliseconds that have elapsed since the 139 * least-recently-inspected heap object was last inspected by the garbage 140 * collector. 141 * 142 * For simple stop-the-world collectors this value is just the time 143 * since the most recent collection. For generational collectors it is the 144 * time since the oldest generation was most recently collected. Other 145 * collectors are free to return a pessimistic estimate of the elapsed time, or 146 * simply the time since the last full collection was performed. 147 * 148 * Note that in the presence of reference objects, a given object that is no 149 * longer strongly reachable may have to be inspected multiple times before it 150 * can be reclaimed. 151 */ 152JNIEXPORT jlong JNICALL 153JVM_MaxObjectInspectionAge(void); 154 155JNIEXPORT void JNICALL 156JVM_TraceInstructions(jboolean on); 157 158JNIEXPORT void JNICALL 159JVM_TraceMethodCalls(jboolean on); 160 161JNIEXPORT jlong JNICALL 162JVM_TotalMemory(void); 163 164JNIEXPORT jlong JNICALL 165JVM_FreeMemory(void); 166 167JNIEXPORT jlong JNICALL 168JVM_MaxMemory(void); 169 170JNIEXPORT jint JNICALL 171JVM_ActiveProcessorCount(void); 172 173JNIEXPORT void * JNICALL 174JVM_LoadLibrary(const char *name); 175 176JNIEXPORT void JNICALL 177JVM_UnloadLibrary(void * handle); 178 179JNIEXPORT void * JNICALL 180JVM_FindLibraryEntry(void *handle, const char *name); 181 182JNIEXPORT jboolean JNICALL 183JVM_IsSupportedJNIVersion(jint version); 184 185/* 186 * java.lang.Float and java.lang.Double 187 */ 188JNIEXPORT jboolean JNICALL 189JVM_IsNaN(jdouble d); 190 191/* 192 * java.lang.Throwable 193 */ 194JNIEXPORT void JNICALL 195JVM_FillInStackTrace(JNIEnv *env, jobject throwable); 196 197JNIEXPORT void JNICALL 198JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable); 199 200JNIEXPORT jint JNICALL 201JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable); 202 203JNIEXPORT jobject JNICALL 204JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index); 205 206/* 207 * java.lang.Compiler 208 */ 209JNIEXPORT void JNICALL 210JVM_InitializeCompiler (JNIEnv *env, jclass compCls); 211 212JNIEXPORT jboolean JNICALL 213JVM_IsSilentCompiler(JNIEnv *env, jclass compCls); 214 215JNIEXPORT jboolean JNICALL 216JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls); 217 218JNIEXPORT jboolean JNICALL 219JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname); 220 221JNIEXPORT jobject JNICALL 222JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg); 223 224JNIEXPORT void JNICALL 225JVM_EnableCompiler(JNIEnv *env, jclass compCls); 226 227JNIEXPORT void JNICALL 228JVM_DisableCompiler(JNIEnv *env, jclass compCls); 229 230/* 231 * java.lang.Thread 232 */ 233JNIEXPORT void JNICALL 234JVM_StartThread(JNIEnv *env, jobject thread); 235 236JNIEXPORT void JNICALL 237JVM_StopThread(JNIEnv *env, jobject thread, jobject exception); 238 239JNIEXPORT jboolean JNICALL 240JVM_IsThreadAlive(JNIEnv *env, jobject thread); 241 242JNIEXPORT void JNICALL 243JVM_SuspendThread(JNIEnv *env, jobject thread); 244 245JNIEXPORT void JNICALL 246JVM_ResumeThread(JNIEnv *env, jobject thread); 247 248JNIEXPORT void JNICALL 249JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio); 250 251JNIEXPORT void JNICALL 252JVM_Yield(JNIEnv *env, jclass threadClass); 253 254JNIEXPORT void JNICALL 255JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis); 256 257JNIEXPORT jobject JNICALL 258JVM_CurrentThread(JNIEnv *env, jclass threadClass); 259 260JNIEXPORT jint JNICALL 261JVM_CountStackFrames(JNIEnv *env, jobject thread); 262 263JNIEXPORT void JNICALL 264JVM_Interrupt(JNIEnv *env, jobject thread); 265 266JNIEXPORT jboolean JNICALL 267JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted); 268 269JNIEXPORT jboolean JNICALL 270JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj); 271 272JNIEXPORT void JNICALL 273JVM_DumpAllStacks(JNIEnv *env, jclass unused); 274 275JNIEXPORT jobjectArray JNICALL 276JVM_GetAllThreads(JNIEnv *env, jclass dummy); 277 278/* getStackTrace() and getAllStackTraces() method */ 279JNIEXPORT jobjectArray JNICALL 280JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads); 281 282/* 283 * java.lang.SecurityManager 284 */ 285JNIEXPORT jclass JNICALL 286JVM_CurrentLoadedClass(JNIEnv *env); 287 288JNIEXPORT jobject JNICALL 289JVM_CurrentClassLoader(JNIEnv *env); 290 291JNIEXPORT jobjectArray JNICALL 292JVM_GetClassContext(JNIEnv *env); 293 294JNIEXPORT jint JNICALL 295JVM_ClassDepth(JNIEnv *env, jstring name); 296 297JNIEXPORT jint JNICALL 298JVM_ClassLoaderDepth(JNIEnv *env); 299 300/* 301 * java.lang.Package 302 */ 303JNIEXPORT jstring JNICALL 304JVM_GetSystemPackage(JNIEnv *env, jstring name); 305 306JNIEXPORT jobjectArray JNICALL 307JVM_GetSystemPackages(JNIEnv *env); 308 309/* 310 * java.io.ObjectInputStream 311 */ 312JNIEXPORT jobject JNICALL 313JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass, 314 jclass initClass); 315 316JNIEXPORT jobject JNICALL 317JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass, 318 jint length); 319 320JNIEXPORT jobject JNICALL 321JVM_LatestUserDefinedLoader(JNIEnv *env); 322 323/* 324 * This function has been deprecated and should not be considered 325 * part of the specified JVM interface. 326 */ 327JNIEXPORT jclass JNICALL 328JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass, 329 jstring currClassName); 330 331/* 332 * java.lang.reflect.Array 333 */ 334JNIEXPORT jint JNICALL 335JVM_GetArrayLength(JNIEnv *env, jobject arr); 336 337JNIEXPORT jobject JNICALL 338JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index); 339 340JNIEXPORT jvalue JNICALL 341JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode); 342 343JNIEXPORT void JNICALL 344JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val); 345 346JNIEXPORT void JNICALL 347JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, 348 unsigned char vCode); 349 350JNIEXPORT jobject JNICALL 351JVM_NewArray(JNIEnv *env, jclass eltClass, jint length); 352 353JNIEXPORT jobject JNICALL 354JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim); 355 356/* 357 * java.lang.Class and java.lang.ClassLoader 358 */ 359/* 360 * Returns the class in which the code invoking the native method 361 * belongs. 362 * 363 * Note that in JDK 1.1, native methods did not create a frame. 364 * In 1.2, they do. Therefore native methods like Class.forName 365 * can no longer look at the current frame for the caller class. 366 */ 367JNIEXPORT jclass JNICALL 368JVM_GetCallerClass(JNIEnv *env, int n); 369 370/* 371 * Find primitive classes 372 * utf: class name 373 */ 374JNIEXPORT jclass JNICALL 375JVM_FindPrimitiveClass(JNIEnv *env, const char *utf); 376 377/* 378 * Link the class 379 */ 380JNIEXPORT void JNICALL 381JVM_ResolveClass(JNIEnv *env, jclass cls); 382 383/* 384 * Find a class from a given class loader. Throw ClassNotFoundException 385 * or NoClassDefFoundError depending on the value of the last 386 * argument. 387 */ 388JNIEXPORT jclass JNICALL 389JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init, 390 jobject loader, jboolean throwError); 391 392/* 393 * Find a class from a given class. 394 */ 395JNIEXPORT jclass JNICALL 396JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init, 397 jclass from); 398 399/* Find a loaded class cached by the VM */ 400JNIEXPORT jclass JNICALL 401JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name); 402 403/* Define a class */ 404JNIEXPORT jclass JNICALL 405JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, 406 jsize len, jobject pd); 407 408/* Define a class with a source (added in JDK1.5) */ 409JNIEXPORT jclass JNICALL 410JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, 411 const jbyte *buf, jsize len, jobject pd, 412 const char *source); 413 414/* 415 * Reflection support functions 416 */ 417 418JNIEXPORT jstring JNICALL 419JVM_GetClassName(JNIEnv *env, jclass cls); 420 421JNIEXPORT jobjectArray JNICALL 422JVM_GetClassInterfaces(JNIEnv *env, jclass cls); 423 424JNIEXPORT jobject JNICALL 425JVM_GetClassLoader(JNIEnv *env, jclass cls); 426 427JNIEXPORT jboolean JNICALL 428JVM_IsInterface(JNIEnv *env, jclass cls); 429 430JNIEXPORT jobjectArray JNICALL 431JVM_GetClassSigners(JNIEnv *env, jclass cls); 432 433JNIEXPORT void JNICALL 434JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers); 435 436JNIEXPORT jobject JNICALL 437JVM_GetProtectionDomain(JNIEnv *env, jclass cls); 438 439JNIEXPORT void JNICALL 440JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain); 441 442JNIEXPORT jboolean JNICALL 443JVM_IsArrayClass(JNIEnv *env, jclass cls); 444 445JNIEXPORT jboolean JNICALL 446JVM_IsPrimitiveClass(JNIEnv *env, jclass cls); 447 448JNIEXPORT jclass JNICALL 449JVM_GetComponentType(JNIEnv *env, jclass cls); 450 451JNIEXPORT jint JNICALL 452JVM_GetClassModifiers(JNIEnv *env, jclass cls); 453 454JNIEXPORT jobjectArray JNICALL 455JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass); 456 457JNIEXPORT jclass JNICALL 458JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass); 459 460/* Generics support (JDK 1.5) */ 461JNIEXPORT jstring JNICALL 462JVM_GetClassSignature(JNIEnv *env, jclass cls); 463 464/* Annotations support (JDK 1.5) */ 465JNIEXPORT jbyteArray JNICALL 466JVM_GetClassAnnotations(JNIEnv *env, jclass cls); 467 468/* Annotations support (JDK 1.6) */ 469 470// field is a handle to a java.lang.reflect.Field object 471JNIEXPORT jbyteArray JNICALL 472JVM_GetFieldAnnotations(JNIEnv *env, jobject field); 473 474// method is a handle to a java.lang.reflect.Method object 475JNIEXPORT jbyteArray JNICALL 476JVM_GetMethodAnnotations(JNIEnv *env, jobject method); 477 478// method is a handle to a java.lang.reflect.Method object 479JNIEXPORT jbyteArray JNICALL 480JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method); 481 482// method is a handle to a java.lang.reflect.Method object 483JNIEXPORT jbyteArray JNICALL 484JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method); 485 486 487/* 488 * New (JDK 1.4) reflection implementation 489 */ 490 491JNIEXPORT jobjectArray JNICALL 492JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly); 493 494JNIEXPORT jobjectArray JNICALL 495JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly); 496 497JNIEXPORT jobjectArray JNICALL 498JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly); 499 500/* Differs from JVM_GetClassModifiers in treatment of inner classes. 501 This returns the access flags for the class as specified in the 502 class file rather than searching the InnerClasses attribute (if 503 present) to find the source-level access flags. Only the values of 504 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be 505 valid. */ 506JNIEXPORT jint JNICALL 507JVM_GetClassAccessFlags(JNIEnv *env, jclass cls); 508 509/* 510 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5) 511 */ 512 513JNIEXPORT jobject JNICALL 514JVM_GetClassConstantPool(JNIEnv *env, jclass cls); 515 516JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize 517(JNIEnv *env, jobject unused, jobject jcpool); 518 519JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt 520(JNIEnv *env, jobject unused, jobject jcpool, jint index); 521 522JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded 523(JNIEnv *env, jobject unused, jobject jcpool, jint index); 524 525JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt 526(JNIEnv *env, jobject unused, jobject jcpool, jint index); 527 528JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded 529(JNIEnv *env, jobject unused, jobject jcpool, jint index); 530 531JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt 532(JNIEnv *env, jobject unused, jobject jcpool, jint index); 533 534JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded 535(JNIEnv *env, jobject unused, jobject jcpool, jint index); 536 537JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt 538(JNIEnv *env, jobject unused, jobject jcpool, jint index); 539 540JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt 541(JNIEnv *env, jobject unused, jobject jcpool, jint index); 542 543JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt 544(JNIEnv *env, jobject unused, jobject jcpool, jint index); 545 546JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt 547(JNIEnv *env, jobject unused, jobject jcpool, jint index); 548 549JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt 550(JNIEnv *env, jobject unused, jobject jcpool, jint index); 551 552JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt 553(JNIEnv *env, jobject unused, jobject jcpool, jint index); 554 555JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At 556(JNIEnv *env, jobject unused, jobject jcpool, jint index); 557 558/* 559 * java.security.* 560 */ 561 562JNIEXPORT jobject JNICALL 563JVM_DoPrivileged(JNIEnv *env, jclass cls, 564 jobject action, jobject context, jboolean wrapException); 565 566JNIEXPORT jobject JNICALL 567JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls); 568 569JNIEXPORT jobject JNICALL 570JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls); 571 572/* 573 * Signal support, used to implement the shutdown sequence. Every VM must 574 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts 575 * (^C) and the latter for external termination (kill, system shutdown, etc.). 576 * Other platform-dependent signal values may also be supported. 577 */ 578 579JNIEXPORT void * JNICALL 580JVM_RegisterSignal(jint sig, void *handler); 581 582JNIEXPORT jboolean JNICALL 583JVM_RaiseSignal(jint sig); 584 585JNIEXPORT jint JNICALL 586JVM_FindSignal(const char *name); 587 588/* 589 * Retrieve the assertion directives for the specified class. 590 */ 591JNIEXPORT jboolean JNICALL 592JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls); 593 594/* 595 * Retrieve the assertion directives from the VM. 596 */ 597JNIEXPORT jobject JNICALL 598JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused); 599 600/* 601 * sun.misc.AtomicLong 602 */ 603JNIEXPORT jboolean JNICALL 604JVM_SupportsCX8(void); 605 606JNIEXPORT jboolean JNICALL 607JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal); 608 609/************************************************************************* 610 PART 2: Support for the Verifier and Class File Format Checker 611 ************************************************************************/ 612/* 613 * Return the class name in UTF format. The result is valid 614 * until JVM_ReleaseUTf is called. 615 * 616 * The caller must treat the string as a constant and not modify it 617 * in any way. 618 */ 619JNIEXPORT const char * JNICALL 620JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 621 622/* 623 * Returns the constant pool types in the buffer provided by "types." 624 */ 625JNIEXPORT void JNICALL 626JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 627 628/* 629 * Returns the number of Constant Pool entries. 630 */ 631JNIEXPORT jint JNICALL 632JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 633 634/* 635 * Returns the number of *declared* fields or methods. 636 */ 637JNIEXPORT jint JNICALL 638JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 639 640JNIEXPORT jint JNICALL 641JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 642 643/* 644 * Returns the CP indexes of exceptions raised by a given method. 645 * Places the result in the given buffer. 646 * 647 * The method is identified by method_index. 648 */ 649JNIEXPORT void JNICALL 650JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 651 unsigned short *exceptions); 652/* 653 * Returns the number of exceptions raised by a given method. 654 * The method is identified by method_index. 655 */ 656JNIEXPORT jint JNICALL 657JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 658 659/* 660 * Returns the byte code sequence of a given method. 661 * Places the result in the given buffer. 662 * 663 * The method is identified by method_index. 664 */ 665JNIEXPORT void JNICALL 666JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 667 unsigned char *code); 668 669/* 670 * Returns the length of the byte code sequence of a given method. 671 * The method is identified by method_index. 672 */ 673JNIEXPORT jint JNICALL 674JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 675 676/* 677 * A structure used to a capture exception table entry in a Java method. 678 */ 679typedef struct { 680 jint start_pc; 681 jint end_pc; 682 jint handler_pc; 683 jint catchType; 684} JVM_ExceptionTableEntryType; 685 686/* 687 * Returns the exception table entry at entry_index of a given method. 688 * Places the result in the given buffer. 689 * 690 * The method is identified by method_index. 691 */ 692JNIEXPORT void JNICALL 693JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 694 jint entry_index, 695 JVM_ExceptionTableEntryType *entry); 696 697/* 698 * Returns the length of the exception table of a given method. 699 * The method is identified by method_index. 700 */ 701JNIEXPORT jint JNICALL 702JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 703 704/* 705 * Returns the modifiers of a given field. 706 * The field is identified by field_index. 707 */ 708JNIEXPORT jint JNICALL 709JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 710 711/* 712 * Returns the modifiers of a given method. 713 * The method is identified by method_index. 714 */ 715JNIEXPORT jint JNICALL 716JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 717 718/* 719 * Returns the number of local variables of a given method. 720 * The method is identified by method_index. 721 */ 722JNIEXPORT jint JNICALL 723JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 724 725/* 726 * Returns the number of arguments (including this pointer) of a given method. 727 * The method is identified by method_index. 728 */ 729JNIEXPORT jint JNICALL 730JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 731 732/* 733 * Returns the maximum amount of stack (in words) used by a given method. 734 * The method is identified by method_index. 735 */ 736JNIEXPORT jint JNICALL 737JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 738 739/* 740 * Is a given method a constructor. 741 * The method is identified by method_index. 742 */ 743JNIEXPORT jboolean JNICALL 744JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 745 746/* 747 * Returns the name of a given method in UTF format. 748 * The result remains valid until JVM_ReleaseUTF is called. 749 * 750 * The caller must treat the string as a constant and not modify it 751 * in any way. 752 */ 753JNIEXPORT const char * JNICALL 754JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 755 756/* 757 * Returns the signature of a given method in UTF format. 758 * The result remains valid until JVM_ReleaseUTF is called. 759 * 760 * The caller must treat the string as a constant and not modify it 761 * in any way. 762 */ 763JNIEXPORT const char * JNICALL 764JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 765 766/* 767 * Returns the name of the field refered to at a given constant pool 768 * index. 769 * 770 * The result is in UTF format and remains valid until JVM_ReleaseUTF 771 * is called. 772 * 773 * The caller must treat the string as a constant and not modify it 774 * in any way. 775 */ 776JNIEXPORT const char * JNICALL 777JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 778 779/* 780 * Returns the name of the method refered to at a given constant pool 781 * index. 782 * 783 * The result is in UTF format and remains valid until JVM_ReleaseUTF 784 * is called. 785 * 786 * The caller must treat the string as a constant and not modify it 787 * in any way. 788 */ 789JNIEXPORT const char * JNICALL 790JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 791 792/* 793 * Returns the signature of the method refered to at a given constant pool 794 * index. 795 * 796 * The result is in UTF format and remains valid until JVM_ReleaseUTF 797 * is called. 798 * 799 * The caller must treat the string as a constant and not modify it 800 * in any way. 801 */ 802JNIEXPORT const char * JNICALL 803JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 804 805/* 806 * Returns the signature of the field refered to at a given constant pool 807 * index. 808 * 809 * The result is in UTF format and remains valid until JVM_ReleaseUTF 810 * is called. 811 * 812 * The caller must treat the string as a constant and not modify it 813 * in any way. 814 */ 815JNIEXPORT const char * JNICALL 816JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 817 818/* 819 * Returns the class name refered to at a given constant pool index. 820 * 821 * The result is in UTF format and remains valid until JVM_ReleaseUTF 822 * is called. 823 * 824 * The caller must treat the string as a constant and not modify it 825 * in any way. 826 */ 827JNIEXPORT const char * JNICALL 828JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 829 830/* 831 * Returns the class name refered to at a given constant pool index. 832 * 833 * The constant pool entry must refer to a CONSTANT_Fieldref. 834 * 835 * The result is in UTF format and remains valid until JVM_ReleaseUTF 836 * is called. 837 * 838 * The caller must treat the string as a constant and not modify it 839 * in any way. 840 */ 841JNIEXPORT const char * JNICALL 842JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 843 844/* 845 * Returns the class name refered to at a given constant pool index. 846 * 847 * The constant pool entry must refer to CONSTANT_Methodref or 848 * CONSTANT_InterfaceMethodref. 849 * 850 * The result is in UTF format and remains valid until JVM_ReleaseUTF 851 * is called. 852 * 853 * The caller must treat the string as a constant and not modify it 854 * in any way. 855 */ 856JNIEXPORT const char * JNICALL 857JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 858 859/* 860 * Returns the modifiers of a field in calledClass. The field is 861 * referred to in class cb at constant pool entry index. 862 * 863 * The caller must treat the string as a constant and not modify it 864 * in any way. 865 * 866 * Returns -1 if the field does not exist in calledClass. 867 */ 868JNIEXPORT jint JNICALL 869JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 870 871/* 872 * Returns the modifiers of a method in calledClass. The method is 873 * referred to in class cb at constant pool entry index. 874 * 875 * Returns -1 if the method does not exist in calledClass. 876 */ 877JNIEXPORT jint JNICALL 878JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 879 880/* 881 * Releases the UTF string obtained from the VM. 882 */ 883JNIEXPORT void JNICALL 884JVM_ReleaseUTF(const char *utf); 885 886/* 887 * Compare if two classes are in the same package. 888 */ 889JNIEXPORT jboolean JNICALL 890JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 891 892/* Constants in class files */ 893 894#define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */ 895#define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */ 896#define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */ 897#define JVM_ACC_STATIC 0x0008 /* instance variable is static */ 898#define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */ 899#define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */ 900#define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */ 901#define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */ 902#define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */ 903#define JVM_ACC_TRANSIENT 0x0080 /* not persistent */ 904#define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */ 905#define JVM_ACC_NATIVE 0x0100 /* implemented in C */ 906#define JVM_ACC_INTERFACE 0x0200 /* class is an interface */ 907#define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */ 908#define JVM_ACC_STRICT 0x0800 /* strict floating point */ 909#define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */ 910#define JVM_ACC_ANNOTATION 0x2000 /* annotation type */ 911#define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */ 912 913#define JVM_ACC_PUBLIC_BIT 0 914#define JVM_ACC_PRIVATE_BIT 1 915#define JVM_ACC_PROTECTED_BIT 2 916#define JVM_ACC_STATIC_BIT 3 917#define JVM_ACC_FINAL_BIT 4 918#define JVM_ACC_SYNCHRONIZED_BIT 5 919#define JVM_ACC_SUPER_BIT 5 920#define JVM_ACC_VOLATILE_BIT 6 921#define JVM_ACC_BRIDGE_BIT 6 922#define JVM_ACC_TRANSIENT_BIT 7 923#define JVM_ACC_VARARGS_BIT 7 924#define JVM_ACC_NATIVE_BIT 8 925#define JVM_ACC_INTERFACE_BIT 9 926#define JVM_ACC_ABSTRACT_BIT 10 927#define JVM_ACC_STRICT_BIT 11 928#define JVM_ACC_SYNTHETIC_BIT 12 929#define JVM_ACC_ANNOTATION_BIT 13 930#define JVM_ACC_ENUM_BIT 14 931 932// NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java 933enum { 934 JVM_CONSTANT_Utf8 = 1, 935 JVM_CONSTANT_Unicode, /* unused */ 936 JVM_CONSTANT_Integer, 937 JVM_CONSTANT_Float, 938 JVM_CONSTANT_Long, 939 JVM_CONSTANT_Double, 940 JVM_CONSTANT_Class, 941 JVM_CONSTANT_String, 942 JVM_CONSTANT_Fieldref, 943 JVM_CONSTANT_Methodref, 944 JVM_CONSTANT_InterfaceMethodref, 945 JVM_CONSTANT_NameAndType 946}; 947 948/* Used in the newarray instruction. */ 949 950#define JVM_T_BOOLEAN 4 951#define JVM_T_CHAR 5 952#define JVM_T_FLOAT 6 953#define JVM_T_DOUBLE 7 954#define JVM_T_BYTE 8 955#define JVM_T_SHORT 9 956#define JVM_T_INT 10 957#define JVM_T_LONG 11 958 959/* JVM method signatures */ 960 961#define JVM_SIGNATURE_ARRAY '[' 962#define JVM_SIGNATURE_BYTE 'B' 963#define JVM_SIGNATURE_CHAR 'C' 964#define JVM_SIGNATURE_CLASS 'L' 965#define JVM_SIGNATURE_ENDCLASS ';' 966#define JVM_SIGNATURE_ENUM 'E' 967#define JVM_SIGNATURE_FLOAT 'F' 968#define JVM_SIGNATURE_DOUBLE 'D' 969#define JVM_SIGNATURE_FUNC '(' 970#define JVM_SIGNATURE_ENDFUNC ')' 971#define JVM_SIGNATURE_INT 'I' 972#define JVM_SIGNATURE_LONG 'J' 973#define JVM_SIGNATURE_SHORT 'S' 974#define JVM_SIGNATURE_VOID 'V' 975#define JVM_SIGNATURE_BOOLEAN 'Z' 976 977/* 978 * A function defined by the byte-code verifier and called by the VM. 979 * This is not a function implemented in the VM. 980 * 981 * Returns JNI_FALSE if verification fails. A detailed error message 982 * will be places in msg_buf, whose length is specified by buf_len. 983 */ 984typedef jboolean (*verifier_fn_t)(JNIEnv *env, 985 jclass cb, 986 char * msg_buf, 987 jint buf_len); 988 989 990/* 991 * Support for a VM-independent class format checker. 992 */ 993typedef struct { 994 unsigned long code; /* byte code */ 995 unsigned long excs; /* exceptions */ 996 unsigned long etab; /* catch table */ 997 unsigned long lnum; /* line number */ 998 unsigned long lvar; /* local vars */ 999} method_size_info; 1000 1001typedef struct { 1002 unsigned int constants; /* constant pool */ 1003 unsigned int fields; 1004 unsigned int methods; 1005 unsigned int interfaces; 1006 unsigned int fields2; /* number of static 2-word fields */ 1007 unsigned int innerclasses; /* # of records in InnerClasses attr */ 1008 1009 method_size_info clinit; /* memory used in clinit */ 1010 method_size_info main; /* used everywhere else */ 1011} class_size_info; 1012 1013/* 1014 * Functions defined in libjava.so to perform string conversions. 1015 * 1016 */ 1017 1018typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str); 1019 1020typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b); 1021 1022/* This is the function defined in libjava.so that performs class 1023 * format checks. This functions fills in size information about 1024 * the class file and returns: 1025 * 1026 * 0: good 1027 * -1: out of memory 1028 * -2: bad format 1029 * -3: unsupported version 1030 * -4: bad class name 1031 */ 1032 1033typedef jint (*check_format_fn_t)(char *class_name, 1034 unsigned char *data, 1035 unsigned int data_size, 1036 class_size_info *class_size, 1037 char *message_buffer, 1038 jint buffer_length, 1039 jboolean measure_only, 1040 jboolean check_relaxed); 1041 1042#define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \ 1043 JVM_ACC_FINAL | \ 1044 JVM_ACC_SUPER | \ 1045 JVM_ACC_INTERFACE | \ 1046 JVM_ACC_ABSTRACT | \ 1047 JVM_ACC_ANNOTATION | \ 1048 JVM_ACC_ENUM | \ 1049 JVM_ACC_SYNTHETIC) 1050 1051#define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \ 1052 JVM_ACC_PRIVATE | \ 1053 JVM_ACC_PROTECTED | \ 1054 JVM_ACC_STATIC | \ 1055 JVM_ACC_FINAL | \ 1056 JVM_ACC_VOLATILE | \ 1057 JVM_ACC_TRANSIENT | \ 1058 JVM_ACC_ENUM | \ 1059 JVM_ACC_SYNTHETIC) 1060 1061#define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \ 1062 JVM_ACC_PRIVATE | \ 1063 JVM_ACC_PROTECTED | \ 1064 JVM_ACC_STATIC | \ 1065 JVM_ACC_FINAL | \ 1066 JVM_ACC_SYNCHRONIZED | \ 1067 JVM_ACC_BRIDGE | \ 1068 JVM_ACC_VARARGS | \ 1069 JVM_ACC_NATIVE | \ 1070 JVM_ACC_ABSTRACT | \ 1071 JVM_ACC_STRICT | \ 1072 JVM_ACC_SYNTHETIC) 1073 1074/* 1075 * This is the function defined in libjava.so to perform path 1076 * canonicalization. VM call this function before opening jar files 1077 * to load system classes. 1078 * 1079 */ 1080 1081typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len); 1082 1083/************************************************************************* 1084 PART 3: I/O and Network Support 1085 ************************************************************************/ 1086 1087/* Note that the JVM IO functions are expected to return JVM_IO_ERR 1088 * when there is any kind of error. The caller can then use the 1089 * platform specific support (e.g., errno) to get the detailed 1090 * error info. The JVM_GetLastErrorString procedure may also be used 1091 * to obtain a descriptive error string. 1092 */ 1093#define JVM_IO_ERR (-1) 1094 1095/* For interruptible IO. Returning JVM_IO_INTR indicates that an IO 1096 * operation has been disrupted by Thread.interrupt. There are a 1097 * number of technical difficulties related to interruptible IO that 1098 * need to be solved. For example, most existing programs do not handle 1099 * InterruptedIOExceptions specially, they simply treat those as any 1100 * IOExceptions, which typically indicate fatal errors. 1101 * 1102 * There are also two modes of operation for interruptible IO. In the 1103 * resumption mode, an interrupted IO operation is guaranteed not to 1104 * have any side-effects, and can be restarted. In the termination mode, 1105 * an interrupted IO operation corrupts the underlying IO stream, so 1106 * that the only reasonable operation on an interrupted stream is to 1107 * close that stream. The resumption mode seems to be impossible to 1108 * implement on Win32 and Solaris. Implementing the termination mode is 1109 * easier, but it's not clear that's the right semantics. 1110 * 1111 * Interruptible IO is not supported on Win32.It can be enabled/disabled 1112 * using a compile-time flag on Solaris. Third-party JVM ports do not 1113 * need to implement interruptible IO. 1114 */ 1115#define JVM_IO_INTR (-2) 1116 1117/* Write a string into the given buffer, in the platform's local encoding, 1118 * that describes the most recent system-level error to occur in this thread. 1119 * Return the length of the string or zero if no error occurred. 1120 */ 1121JNIEXPORT jint JNICALL 1122JVM_GetLastErrorString(char *buf, int len); 1123 1124/* 1125 * Convert a pathname into native format. This function does syntactic 1126 * cleanup, such as removing redundant separator characters. It modifies 1127 * the given pathname string in place. 1128 */ 1129JNIEXPORT char * JNICALL 1130JVM_NativePath(char *); 1131 1132/* 1133 * JVM I/O error codes 1134 */ 1135#define JVM_EEXIST -100 1136 1137/* 1138 * Open a file descriptor. This function returns a negative error code 1139 * on error, and a non-negative integer that is the file descriptor on 1140 * success. 1141 */ 1142JNIEXPORT jint JNICALL 1143JVM_Open(const char *fname, jint flags, jint mode); 1144 1145/* 1146 * Close a file descriptor. This function returns -1 on error, and 0 1147 * on success. 1148 * 1149 * fd the file descriptor to close. 1150 */ 1151JNIEXPORT jint JNICALL 1152JVM_Close(jint fd); 1153 1154/* 1155 * Read data from a file decriptor into a char array. 1156 * 1157 * fd the file descriptor to read from. 1158 * buf the buffer where to put the read data. 1159 * nbytes the number of bytes to read. 1160 * 1161 * This function returns -1 on error, and 0 on success. 1162 */ 1163JNIEXPORT jint JNICALL 1164JVM_Read(jint fd, char *buf, jint nbytes); 1165 1166/* 1167 * Write data from a char array to a file decriptor. 1168 * 1169 * fd the file descriptor to read from. 1170 * buf the buffer from which to fetch the data. 1171 * nbytes the number of bytes to write. 1172 * 1173 * This function returns -1 on error, and 0 on success. 1174 */ 1175JNIEXPORT jint JNICALL 1176JVM_Write(jint fd, char *buf, jint nbytes); 1177 1178/* 1179 * Returns the number of bytes available for reading from a given file 1180 * descriptor 1181 */ 1182JNIEXPORT jint JNICALL 1183JVM_Available(jint fd, jlong *pbytes); 1184 1185/* 1186 * Move the file descriptor pointer from whence by offset. 1187 * 1188 * fd the file descriptor to move. 1189 * offset the number of bytes to move it by. 1190 * whence the start from where to move it. 1191 * 1192 * This function returns the resulting pointer location. 1193 */ 1194JNIEXPORT jlong JNICALL 1195JVM_Lseek(jint fd, jlong offset, jint whence); 1196 1197/* 1198 * Set the length of the file associated with the given descriptor to the given 1199 * length. If the new length is longer than the current length then the file 1200 * is extended; the contents of the extended portion are not defined. The 1201 * value of the file pointer is undefined after this procedure returns. 1202 */ 1203JNIEXPORT jint JNICALL 1204JVM_SetLength(jint fd, jlong length); 1205 1206/* 1207 * Synchronize the file descriptor's in memory state with that of the 1208 * physical device. Return of -1 is an error, 0 is OK. 1209 */ 1210JNIEXPORT jint JNICALL 1211JVM_Sync(jint fd); 1212 1213/* 1214 * Networking library support 1215 */ 1216 1217JNIEXPORT jint JNICALL 1218JVM_InitializeSocketLibrary(void); 1219 1220struct sockaddr; 1221 1222JNIEXPORT jint JNICALL 1223JVM_Socket(jint domain, jint type, jint protocol); 1224 1225JNIEXPORT jint JNICALL 1226JVM_SocketClose(jint fd); 1227 1228JNIEXPORT jint JNICALL 1229JVM_SocketShutdown(jint fd, jint howto); 1230 1231JNIEXPORT jint JNICALL 1232JVM_Recv(jint fd, char *buf, jint nBytes, jint flags); 1233 1234JNIEXPORT jint JNICALL 1235JVM_Send(jint fd, char *buf, jint nBytes, jint flags); 1236 1237JNIEXPORT jint JNICALL 1238JVM_Timeout(int fd, long timeout); 1239 1240JNIEXPORT jint JNICALL 1241JVM_Listen(jint fd, jint count); 1242 1243JNIEXPORT jint JNICALL 1244JVM_Connect(jint fd, struct sockaddr *him, jint len); 1245 1246JNIEXPORT jint JNICALL 1247JVM_Bind(jint fd, struct sockaddr *him, jint len); 1248 1249JNIEXPORT jint JNICALL 1250JVM_Accept(jint fd, struct sockaddr *him, jint *len); 1251 1252JNIEXPORT jint JNICALL 1253JVM_RecvFrom(jint fd, char *buf, int nBytes, 1254 int flags, struct sockaddr *from, int *fromlen); 1255 1256JNIEXPORT jint JNICALL 1257JVM_SendTo(jint fd, char *buf, int len, 1258 int flags, struct sockaddr *to, int tolen); 1259 1260JNIEXPORT jint JNICALL 1261JVM_SocketAvailable(jint fd, jint *result); 1262 1263 1264JNIEXPORT jint JNICALL 1265JVM_GetSockName(jint fd, struct sockaddr *him, int *len); 1266 1267JNIEXPORT jint JNICALL 1268JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen); 1269 1270JNIEXPORT jint JNICALL 1271JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen); 1272 1273/* 1274 * These routines are only reentrant on Windows 1275 */ 1276 1277#ifdef _WINDOWS 1278 1279JNIEXPORT struct protoent * JNICALL 1280JVM_GetProtoByName(char* name); 1281 1282JNIEXPORT struct hostent* JNICALL 1283JVM_GetHostByAddr(const char* name, int len, int type); 1284 1285JNIEXPORT struct hostent* JNICALL 1286JVM_GetHostByName(char* name); 1287 1288#endif /* _WINDOWS */ 1289 1290JNIEXPORT int JNICALL 1291JVM_GetHostName(char* name, int namelen); 1292 1293/* 1294 * The standard printing functions supported by the Java VM. (Should they 1295 * be renamed to JVM_* in the future? 1296 */ 1297 1298/* 1299 * BE CAREFUL! The following functions do not implement the 1300 * full feature set of standard C printf formats. 1301 */ 1302int 1303jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1304 1305int 1306jio_snprintf(char *str, size_t count, const char *fmt, ...); 1307 1308int 1309jio_fprintf(FILE *, const char *fmt, ...); 1310 1311int 1312jio_vfprintf(FILE *, const char *fmt, va_list args); 1313 1314 1315JNIEXPORT void * JNICALL 1316JVM_RawMonitorCreate(void); 1317 1318JNIEXPORT void JNICALL 1319JVM_RawMonitorDestroy(void *mon); 1320 1321JNIEXPORT jint JNICALL 1322JVM_RawMonitorEnter(void *mon); 1323 1324JNIEXPORT void JNICALL 1325JVM_RawMonitorExit(void *mon); 1326 1327 1328#ifdef SUPPORT_OLD_REFLECTION 1329 1330/* 1331 * Support for old native code-based (pre-JDK 1.4) reflection implementation. 1332 * Disabled by default in the product build. 1333 * 1334 * See reflection.hpp for information on SUPPORT_OLD_REFLECTION 1335 */ 1336 1337/* 1338 * reflecting fields and methods. 1339 * which: 0 --- MEMBER_PUBLIC 1340 * 1 --- MEMBER_DECLARED 1341 * NOTE: absent in product build by default 1342 */ 1343 1344JNIEXPORT jobjectArray JNICALL 1345JVM_GetClassFields(JNIEnv *env, jclass cls, jint which); 1346 1347JNIEXPORT jobjectArray JNICALL 1348JVM_GetClassMethods(JNIEnv *env, jclass cls, jint which); 1349 1350JNIEXPORT jobjectArray JNICALL 1351JVM_GetClassConstructors(JNIEnv *env, jclass cls, jint which); 1352 1353JNIEXPORT jobject JNICALL 1354JVM_GetClassField(JNIEnv *env, jclass cls, jstring name, jint which); 1355 1356JNIEXPORT jobject JNICALL 1357JVM_GetClassMethod(JNIEnv *env, jclass cls, jstring name, jobjectArray types, 1358 jint which); 1359JNIEXPORT jobject JNICALL 1360JVM_GetClassConstructor(JNIEnv *env, jclass cls, jobjectArray types, 1361 jint which); 1362 1363/* 1364 * Implements Class.newInstance 1365 */ 1366JNIEXPORT jobject JNICALL 1367JVM_NewInstance(JNIEnv *env, jclass cls); 1368 1369/* 1370 * java.lang.reflect.Field 1371 */ 1372JNIEXPORT jobject JNICALL 1373JVM_GetField(JNIEnv *env, jobject field, jobject obj); 1374 1375JNIEXPORT jvalue JNICALL 1376JVM_GetPrimitiveField(JNIEnv *env, jobject field, jobject obj, 1377 unsigned char wCode); 1378 1379JNIEXPORT void JNICALL 1380JVM_SetField(JNIEnv *env, jobject field, jobject obj, jobject val); 1381 1382JNIEXPORT void JNICALL 1383JVM_SetPrimitiveField(JNIEnv *env, jobject field, jobject obj, jvalue v, 1384 unsigned char vCode); 1385 1386/* 1387 * java.lang.reflect.Method 1388 */ 1389JNIEXPORT jobject JNICALL 1390JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 1391 1392/* 1393 * java.lang.reflect.Constructor 1394 */ 1395JNIEXPORT jobject JNICALL 1396JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 1397 1398#endif /* SUPPORT_OLD_REFLECTION */ 1399 1400/* 1401 * java.lang.management support 1402 */ 1403JNIEXPORT void* JNICALL 1404JVM_GetManagement(jint version); 1405 1406/* 1407 * com.sun.tools.attach.VirtualMachine support 1408 * 1409 * Initialize the agent properties with the properties maintained in the VM. 1410 */ 1411JNIEXPORT jobject JNICALL 1412JVM_InitAgentProperties(JNIEnv *env, jobject agent_props); 1413 1414/* Generics reflection support. 1415 * 1416 * Returns information about the given class's EnclosingMethod 1417 * attribute, if present, or null if the class had no enclosing 1418 * method. 1419 * 1420 * If non-null, the returned array contains three elements. Element 0 1421 * is the java.lang.Class of which the enclosing method is a member, 1422 * and elements 1 and 2 are the java.lang.Strings for the enclosing 1423 * method's name and descriptor, respectively. 1424 */ 1425JNIEXPORT jobjectArray JNICALL 1426JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass); 1427 1428/* 1429 * Java thread state support 1430 */ 1431enum { 1432 JAVA_THREAD_STATE_NEW = 0, 1433 JAVA_THREAD_STATE_RUNNABLE = 1, 1434 JAVA_THREAD_STATE_BLOCKED = 2, 1435 JAVA_THREAD_STATE_WAITING = 3, 1436 JAVA_THREAD_STATE_TIMED_WAITING = 4, 1437 JAVA_THREAD_STATE_TERMINATED = 5, 1438 JAVA_THREAD_STATE_COUNT = 6 1439}; 1440 1441/* 1442 * Returns an array of the threadStatus values representing the 1443 * given Java thread state. Returns NULL if the VM version is 1444 * incompatible with the JDK or doesn't support the given 1445 * Java thread state. 1446 */ 1447JNIEXPORT jintArray JNICALL 1448JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState); 1449 1450/* 1451 * Returns an array of the substate names representing the 1452 * given Java thread state. Returns NULL if the VM version is 1453 * incompatible with the JDK or the VM doesn't support 1454 * the given Java thread state. 1455 * values must be the jintArray returned from JVM_GetThreadStateValues 1456 * and javaThreadState. 1457 */ 1458JNIEXPORT jobjectArray JNICALL 1459JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values); 1460 1461/* ========================================================================= 1462 * The following defines a private JVM interface that the JDK can query 1463 * for the JVM version and capabilities. sun.misc.Version defines 1464 * the methods for getting the VM version and its capabilities. 1465 * 1466 * When a new bit is added, the following should be updated to provide 1467 * access to the new capability: 1468 * HS: JVM_GetVersionInfo and Abstract_VM_Version class 1469 * SDK: Version class 1470 * 1471 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for 1472 * JVM to query for the JDK version and capabilities. 1473 * 1474 * When a new bit is added, the following should be updated to provide 1475 * access to the new capability: 1476 * HS: JDK_Version class 1477 * SDK: JDK_GetVersionInfo0 1478 * 1479 * ========================================================================== 1480 */ 1481typedef struct { 1482 /* HotSpot Express VM version string: 1483 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>] 1484 */ 1485 unsigned int jvm_version; /* Consists of major.minor.0.build */ 1486 unsigned int update_version : 8; /* 0 in HotSpot Express VM */ 1487 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */ 1488 unsigned int reserved1 : 16; 1489 unsigned int reserved2; 1490 1491 /* The following bits represents JVM supports that JDK has dependency on. 1492 * JDK can use these bits to determine which JVM version 1493 * and support it has to maintain runtime compatibility. 1494 * 1495 * When a new bit is added in a minor or update release, make sure 1496 * the new bit is also added in the main/baseline. 1497 */ 1498 unsigned int is_attachable : 1; 1499 unsigned int is_kernel_jvm : 1; 1500 unsigned int : 30; 1501 unsigned int : 32; 1502 unsigned int : 32; 1503} jvm_version_info; 1504 1505#define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1506#define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1507// Micro version is 0 in HotSpot Express VM (set in jvm.cpp). 1508#define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1509/* Build number is available in all HotSpot Express VM builds. 1510 * It is defined in make/hotspot_version file. 1511 */ 1512#define JVM_VERSION_BUILD(version) ((version & 0x000000FF)) 1513 1514JNIEXPORT void JNICALL 1515JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size); 1516 1517typedef struct { 1518 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx 1519 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */ 1520 /* and build number (xx) */ 1521 unsigned int update_version : 8; /* Update release version (uu) */ 1522 unsigned int special_update_version : 8; /* Special update release version (c)*/ 1523 unsigned int reserved1 : 16; 1524 unsigned int reserved2; 1525 1526 /* The following bits represents new JDK supports that VM has dependency on. 1527 * VM implementation can use these bits to determine which JDK version 1528 * and support it has to maintain runtime compatibility. 1529 * 1530 * When a new bit is added in a minor or update release, make sure 1531 * the new bit is also added in the main/baseline. 1532 */ 1533 unsigned int thread_park_blocker : 1; 1534 unsigned int : 31; 1535 unsigned int : 32; 1536 unsigned int : 32; 1537} jdk_version_info; 1538 1539#define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1540#define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1541#define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1542 1543/* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN) 1544 * It will be zero for internal builds. 1545 */ 1546#define JDK_VERSION_BUILD(version) ((version & 0x000000FF)) 1547 1548/* 1549 * This is the function JDK_GetVersionInfo0 defined in libjava.so 1550 * that is dynamically looked up by JVM. 1551 */ 1552typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size); 1553 1554/* 1555 * This structure is used by the launcher to get the default thread 1556 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a 1557 * version of 1.1. As it is not supported otherwise, it has been removed 1558 * from jni.h 1559 */ 1560typedef struct JDK1_1InitArgs { 1561 jint version; 1562 1563 char **properties; 1564 jint checkSource; 1565 jint nativeStackSize; 1566 jint javaStackSize; 1567 jint minHeapSize; 1568 jint maxHeapSize; 1569 jint verifyMode; 1570 char *classpath; 1571 1572 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args); 1573 void (JNICALL *exit)(jint code); 1574 void (JNICALL *abort)(void); 1575 1576 jint enableClassGC; 1577 jint enableVerboseGC; 1578 jint disableAsyncGC; 1579 jint verbose; 1580 jboolean debugging; 1581 jint debugPort; 1582} JDK1_1InitArgs; 1583 1584#ifdef __cplusplus 1585} /* extern "C" */ 1586#endif /* __cplusplus */ 1587 1588#endif /* !_JAVASOFT_JVM_H_ */ 1589