jvm.h revision 116:018d5b58dd4f
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 * com.sun.dtrace.jsdt support 611 */ 612 613#define JVM_TRACING_DTRACE_VERSION 1 614 615/* 616 * Structure to pass one probe description to JVM. 617 * 618 * The VM will overwrite the definition of the referenced method with 619 * code that will fire the probe. 620 */ 621typedef struct { 622 jmethodID method; 623 jstring function; 624 jstring name; 625 void* reserved[4]; // for future use 626} JVM_DTraceProbe; 627 628/** 629 * Encapsulates the stability ratings for a DTrace provider field 630 */ 631typedef struct { 632 jint nameStability; 633 jint dataStability; 634 jint dependencyClass; 635} JVM_DTraceInterfaceAttributes; 636 637/* 638 * Structure to pass one provider description to JVM 639 */ 640typedef struct { 641 jstring name; 642 JVM_DTraceProbe* probes; 643 jint probe_count; 644 JVM_DTraceInterfaceAttributes providerAttributes; 645 JVM_DTraceInterfaceAttributes moduleAttributes; 646 JVM_DTraceInterfaceAttributes functionAttributes; 647 JVM_DTraceInterfaceAttributes nameAttributes; 648 JVM_DTraceInterfaceAttributes argsAttributes; 649 void* reserved[4]; // for future use 650} JVM_DTraceProvider; 651 652/* 653 * Get the version number the JVM was built with 654 */ 655JNIEXPORT jint JNICALL 656JVM_DTraceGetVersion(JNIEnv* env); 657 658/* 659 * Register new probe with given signature, return global handle 660 * 661 * The version passed in is the version that the library code was 662 * built with. 663 */ 664JNIEXPORT jlong JNICALL 665JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name, 666 jint providers_count, JVM_DTraceProvider* providers); 667 668/* 669 * Check JSDT probe 670 */ 671JNIEXPORT jboolean JNICALL 672JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method); 673 674/* 675 * Destroy custom DOF 676 */ 677JNIEXPORT void JNICALL 678JVM_DTraceDispose(JNIEnv* env, jlong handle); 679 680/* 681 * Check to see if DTrace is supported by OS 682 */ 683JNIEXPORT jboolean JNICALL 684JVM_DTraceIsSupported(JNIEnv* env); 685 686/************************************************************************* 687 PART 2: Support for the Verifier and Class File Format Checker 688 ************************************************************************/ 689/* 690 * Return the class name in UTF format. The result is valid 691 * until JVM_ReleaseUTf is called. 692 * 693 * The caller must treat the string as a constant and not modify it 694 * in any way. 695 */ 696JNIEXPORT const char * JNICALL 697JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 698 699/* 700 * Returns the constant pool types in the buffer provided by "types." 701 */ 702JNIEXPORT void JNICALL 703JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 704 705/* 706 * Returns the number of Constant Pool entries. 707 */ 708JNIEXPORT jint JNICALL 709JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 710 711/* 712 * Returns the number of *declared* fields or methods. 713 */ 714JNIEXPORT jint JNICALL 715JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 716 717JNIEXPORT jint JNICALL 718JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 719 720/* 721 * Returns the CP indexes of exceptions raised by a given method. 722 * Places the result in the given buffer. 723 * 724 * The method is identified by method_index. 725 */ 726JNIEXPORT void JNICALL 727JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 728 unsigned short *exceptions); 729/* 730 * Returns the number of exceptions raised by a given method. 731 * The method is identified by method_index. 732 */ 733JNIEXPORT jint JNICALL 734JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 735 736/* 737 * Returns the byte code sequence of a given method. 738 * Places the result in the given buffer. 739 * 740 * The method is identified by method_index. 741 */ 742JNIEXPORT void JNICALL 743JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 744 unsigned char *code); 745 746/* 747 * Returns the length of the byte code sequence of a given method. 748 * The method is identified by method_index. 749 */ 750JNIEXPORT jint JNICALL 751JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 752 753/* 754 * A structure used to a capture exception table entry in a Java method. 755 */ 756typedef struct { 757 jint start_pc; 758 jint end_pc; 759 jint handler_pc; 760 jint catchType; 761} JVM_ExceptionTableEntryType; 762 763/* 764 * Returns the exception table entry at entry_index of a given method. 765 * Places the result in the given buffer. 766 * 767 * The method is identified by method_index. 768 */ 769JNIEXPORT void JNICALL 770JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 771 jint entry_index, 772 JVM_ExceptionTableEntryType *entry); 773 774/* 775 * Returns the length of the exception table of a given method. 776 * The method is identified by method_index. 777 */ 778JNIEXPORT jint JNICALL 779JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 780 781/* 782 * Returns the modifiers of a given field. 783 * The field is identified by field_index. 784 */ 785JNIEXPORT jint JNICALL 786JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 787 788/* 789 * Returns the modifiers of a given method. 790 * The method is identified by method_index. 791 */ 792JNIEXPORT jint JNICALL 793JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 794 795/* 796 * Returns the number of local variables of a given method. 797 * The method is identified by method_index. 798 */ 799JNIEXPORT jint JNICALL 800JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 801 802/* 803 * Returns the number of arguments (including this pointer) of a given method. 804 * The method is identified by method_index. 805 */ 806JNIEXPORT jint JNICALL 807JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 808 809/* 810 * Returns the maximum amount of stack (in words) used by a given method. 811 * The method is identified by method_index. 812 */ 813JNIEXPORT jint JNICALL 814JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 815 816/* 817 * Is a given method a constructor. 818 * The method is identified by method_index. 819 */ 820JNIEXPORT jboolean JNICALL 821JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 822 823/* 824 * Returns the name of a given method in UTF format. 825 * The result remains valid until JVM_ReleaseUTF is called. 826 * 827 * The caller must treat the string as a constant and not modify it 828 * in any way. 829 */ 830JNIEXPORT const char * JNICALL 831JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 832 833/* 834 * Returns the signature of a given method in UTF format. 835 * The result remains valid until JVM_ReleaseUTF is called. 836 * 837 * The caller must treat the string as a constant and not modify it 838 * in any way. 839 */ 840JNIEXPORT const char * JNICALL 841JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 842 843/* 844 * Returns the name of the field refered to at a given constant pool 845 * index. 846 * 847 * The result is in UTF format and remains valid until JVM_ReleaseUTF 848 * is called. 849 * 850 * The caller must treat the string as a constant and not modify it 851 * in any way. 852 */ 853JNIEXPORT const char * JNICALL 854JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 855 856/* 857 * Returns the name of the method refered to at a given constant pool 858 * index. 859 * 860 * The result is in UTF format and remains valid until JVM_ReleaseUTF 861 * is called. 862 * 863 * The caller must treat the string as a constant and not modify it 864 * in any way. 865 */ 866JNIEXPORT const char * JNICALL 867JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 868 869/* 870 * Returns the signature of the method refered to at a given constant pool 871 * index. 872 * 873 * The result is in UTF format and remains valid until JVM_ReleaseUTF 874 * is called. 875 * 876 * The caller must treat the string as a constant and not modify it 877 * in any way. 878 */ 879JNIEXPORT const char * JNICALL 880JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 881 882/* 883 * Returns the signature of the field refered to at a given constant pool 884 * index. 885 * 886 * The result is in UTF format and remains valid until JVM_ReleaseUTF 887 * is called. 888 * 889 * The caller must treat the string as a constant and not modify it 890 * in any way. 891 */ 892JNIEXPORT const char * JNICALL 893JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 894 895/* 896 * Returns the class name refered to at a given constant pool index. 897 * 898 * The result is in UTF format and remains valid until JVM_ReleaseUTF 899 * is called. 900 * 901 * The caller must treat the string as a constant and not modify it 902 * in any way. 903 */ 904JNIEXPORT const char * JNICALL 905JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 906 907/* 908 * Returns the class name refered to at a given constant pool index. 909 * 910 * The constant pool entry must refer to a CONSTANT_Fieldref. 911 * 912 * The result is in UTF format and remains valid until JVM_ReleaseUTF 913 * is called. 914 * 915 * The caller must treat the string as a constant and not modify it 916 * in any way. 917 */ 918JNIEXPORT const char * JNICALL 919JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 920 921/* 922 * Returns the class name refered to at a given constant pool index. 923 * 924 * The constant pool entry must refer to CONSTANT_Methodref or 925 * CONSTANT_InterfaceMethodref. 926 * 927 * The result is in UTF format and remains valid until JVM_ReleaseUTF 928 * is called. 929 * 930 * The caller must treat the string as a constant and not modify it 931 * in any way. 932 */ 933JNIEXPORT const char * JNICALL 934JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 935 936/* 937 * Returns the modifiers of a field in calledClass. The field is 938 * referred to in class cb at constant pool entry index. 939 * 940 * The caller must treat the string as a constant and not modify it 941 * in any way. 942 * 943 * Returns -1 if the field does not exist in calledClass. 944 */ 945JNIEXPORT jint JNICALL 946JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 947 948/* 949 * Returns the modifiers of a method in calledClass. The method is 950 * referred to in class cb at constant pool entry index. 951 * 952 * Returns -1 if the method does not exist in calledClass. 953 */ 954JNIEXPORT jint JNICALL 955JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 956 957/* 958 * Releases the UTF string obtained from the VM. 959 */ 960JNIEXPORT void JNICALL 961JVM_ReleaseUTF(const char *utf); 962 963/* 964 * Compare if two classes are in the same package. 965 */ 966JNIEXPORT jboolean JNICALL 967JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 968 969/* Constants in class files */ 970 971#define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */ 972#define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */ 973#define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */ 974#define JVM_ACC_STATIC 0x0008 /* instance variable is static */ 975#define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */ 976#define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */ 977#define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */ 978#define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */ 979#define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */ 980#define JVM_ACC_TRANSIENT 0x0080 /* not persistent */ 981#define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */ 982#define JVM_ACC_NATIVE 0x0100 /* implemented in C */ 983#define JVM_ACC_INTERFACE 0x0200 /* class is an interface */ 984#define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */ 985#define JVM_ACC_STRICT 0x0800 /* strict floating point */ 986#define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */ 987#define JVM_ACC_ANNOTATION 0x2000 /* annotation type */ 988#define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */ 989 990#define JVM_ACC_PUBLIC_BIT 0 991#define JVM_ACC_PRIVATE_BIT 1 992#define JVM_ACC_PROTECTED_BIT 2 993#define JVM_ACC_STATIC_BIT 3 994#define JVM_ACC_FINAL_BIT 4 995#define JVM_ACC_SYNCHRONIZED_BIT 5 996#define JVM_ACC_SUPER_BIT 5 997#define JVM_ACC_VOLATILE_BIT 6 998#define JVM_ACC_BRIDGE_BIT 6 999#define JVM_ACC_TRANSIENT_BIT 7 1000#define JVM_ACC_VARARGS_BIT 7 1001#define JVM_ACC_NATIVE_BIT 8 1002#define JVM_ACC_INTERFACE_BIT 9 1003#define JVM_ACC_ABSTRACT_BIT 10 1004#define JVM_ACC_STRICT_BIT 11 1005#define JVM_ACC_SYNTHETIC_BIT 12 1006#define JVM_ACC_ANNOTATION_BIT 13 1007#define JVM_ACC_ENUM_BIT 14 1008 1009// NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java 1010enum { 1011 JVM_CONSTANT_Utf8 = 1, 1012 JVM_CONSTANT_Unicode, /* unused */ 1013 JVM_CONSTANT_Integer, 1014 JVM_CONSTANT_Float, 1015 JVM_CONSTANT_Long, 1016 JVM_CONSTANT_Double, 1017 JVM_CONSTANT_Class, 1018 JVM_CONSTANT_String, 1019 JVM_CONSTANT_Fieldref, 1020 JVM_CONSTANT_Methodref, 1021 JVM_CONSTANT_InterfaceMethodref, 1022 JVM_CONSTANT_NameAndType 1023}; 1024 1025/* Used in the newarray instruction. */ 1026 1027#define JVM_T_BOOLEAN 4 1028#define JVM_T_CHAR 5 1029#define JVM_T_FLOAT 6 1030#define JVM_T_DOUBLE 7 1031#define JVM_T_BYTE 8 1032#define JVM_T_SHORT 9 1033#define JVM_T_INT 10 1034#define JVM_T_LONG 11 1035 1036/* JVM method signatures */ 1037 1038#define JVM_SIGNATURE_ARRAY '[' 1039#define JVM_SIGNATURE_BYTE 'B' 1040#define JVM_SIGNATURE_CHAR 'C' 1041#define JVM_SIGNATURE_CLASS 'L' 1042#define JVM_SIGNATURE_ENDCLASS ';' 1043#define JVM_SIGNATURE_ENUM 'E' 1044#define JVM_SIGNATURE_FLOAT 'F' 1045#define JVM_SIGNATURE_DOUBLE 'D' 1046#define JVM_SIGNATURE_FUNC '(' 1047#define JVM_SIGNATURE_ENDFUNC ')' 1048#define JVM_SIGNATURE_INT 'I' 1049#define JVM_SIGNATURE_LONG 'J' 1050#define JVM_SIGNATURE_SHORT 'S' 1051#define JVM_SIGNATURE_VOID 'V' 1052#define JVM_SIGNATURE_BOOLEAN 'Z' 1053 1054/* 1055 * A function defined by the byte-code verifier and called by the VM. 1056 * This is not a function implemented in the VM. 1057 * 1058 * Returns JNI_FALSE if verification fails. A detailed error message 1059 * will be places in msg_buf, whose length is specified by buf_len. 1060 */ 1061typedef jboolean (*verifier_fn_t)(JNIEnv *env, 1062 jclass cb, 1063 char * msg_buf, 1064 jint buf_len); 1065 1066 1067/* 1068 * Support for a VM-independent class format checker. 1069 */ 1070typedef struct { 1071 unsigned long code; /* byte code */ 1072 unsigned long excs; /* exceptions */ 1073 unsigned long etab; /* catch table */ 1074 unsigned long lnum; /* line number */ 1075 unsigned long lvar; /* local vars */ 1076} method_size_info; 1077 1078typedef struct { 1079 unsigned int constants; /* constant pool */ 1080 unsigned int fields; 1081 unsigned int methods; 1082 unsigned int interfaces; 1083 unsigned int fields2; /* number of static 2-word fields */ 1084 unsigned int innerclasses; /* # of records in InnerClasses attr */ 1085 1086 method_size_info clinit; /* memory used in clinit */ 1087 method_size_info main; /* used everywhere else */ 1088} class_size_info; 1089 1090/* 1091 * Functions defined in libjava.so to perform string conversions. 1092 * 1093 */ 1094 1095typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str); 1096 1097typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b); 1098 1099/* This is the function defined in libjava.so that performs class 1100 * format checks. This functions fills in size information about 1101 * the class file and returns: 1102 * 1103 * 0: good 1104 * -1: out of memory 1105 * -2: bad format 1106 * -3: unsupported version 1107 * -4: bad class name 1108 */ 1109 1110typedef jint (*check_format_fn_t)(char *class_name, 1111 unsigned char *data, 1112 unsigned int data_size, 1113 class_size_info *class_size, 1114 char *message_buffer, 1115 jint buffer_length, 1116 jboolean measure_only, 1117 jboolean check_relaxed); 1118 1119#define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \ 1120 JVM_ACC_FINAL | \ 1121 JVM_ACC_SUPER | \ 1122 JVM_ACC_INTERFACE | \ 1123 JVM_ACC_ABSTRACT | \ 1124 JVM_ACC_ANNOTATION | \ 1125 JVM_ACC_ENUM | \ 1126 JVM_ACC_SYNTHETIC) 1127 1128#define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \ 1129 JVM_ACC_PRIVATE | \ 1130 JVM_ACC_PROTECTED | \ 1131 JVM_ACC_STATIC | \ 1132 JVM_ACC_FINAL | \ 1133 JVM_ACC_VOLATILE | \ 1134 JVM_ACC_TRANSIENT | \ 1135 JVM_ACC_ENUM | \ 1136 JVM_ACC_SYNTHETIC) 1137 1138#define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \ 1139 JVM_ACC_PRIVATE | \ 1140 JVM_ACC_PROTECTED | \ 1141 JVM_ACC_STATIC | \ 1142 JVM_ACC_FINAL | \ 1143 JVM_ACC_SYNCHRONIZED | \ 1144 JVM_ACC_BRIDGE | \ 1145 JVM_ACC_VARARGS | \ 1146 JVM_ACC_NATIVE | \ 1147 JVM_ACC_ABSTRACT | \ 1148 JVM_ACC_STRICT | \ 1149 JVM_ACC_SYNTHETIC) 1150 1151/* 1152 * This is the function defined in libjava.so to perform path 1153 * canonicalization. VM call this function before opening jar files 1154 * to load system classes. 1155 * 1156 */ 1157 1158typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len); 1159 1160/************************************************************************* 1161 PART 3: I/O and Network Support 1162 ************************************************************************/ 1163 1164/* Note that the JVM IO functions are expected to return JVM_IO_ERR 1165 * when there is any kind of error. The caller can then use the 1166 * platform specific support (e.g., errno) to get the detailed 1167 * error info. The JVM_GetLastErrorString procedure may also be used 1168 * to obtain a descriptive error string. 1169 */ 1170#define JVM_IO_ERR (-1) 1171 1172/* For interruptible IO. Returning JVM_IO_INTR indicates that an IO 1173 * operation has been disrupted by Thread.interrupt. There are a 1174 * number of technical difficulties related to interruptible IO that 1175 * need to be solved. For example, most existing programs do not handle 1176 * InterruptedIOExceptions specially, they simply treat those as any 1177 * IOExceptions, which typically indicate fatal errors. 1178 * 1179 * There are also two modes of operation for interruptible IO. In the 1180 * resumption mode, an interrupted IO operation is guaranteed not to 1181 * have any side-effects, and can be restarted. In the termination mode, 1182 * an interrupted IO operation corrupts the underlying IO stream, so 1183 * that the only reasonable operation on an interrupted stream is to 1184 * close that stream. The resumption mode seems to be impossible to 1185 * implement on Win32 and Solaris. Implementing the termination mode is 1186 * easier, but it's not clear that's the right semantics. 1187 * 1188 * Interruptible IO is not supported on Win32.It can be enabled/disabled 1189 * using a compile-time flag on Solaris. Third-party JVM ports do not 1190 * need to implement interruptible IO. 1191 */ 1192#define JVM_IO_INTR (-2) 1193 1194/* Write a string into the given buffer, in the platform's local encoding, 1195 * that describes the most recent system-level error to occur in this thread. 1196 * Return the length of the string or zero if no error occurred. 1197 */ 1198JNIEXPORT jint JNICALL 1199JVM_GetLastErrorString(char *buf, int len); 1200 1201/* 1202 * Convert a pathname into native format. This function does syntactic 1203 * cleanup, such as removing redundant separator characters. It modifies 1204 * the given pathname string in place. 1205 */ 1206JNIEXPORT char * JNICALL 1207JVM_NativePath(char *); 1208 1209/* 1210 * JVM I/O error codes 1211 */ 1212#define JVM_EEXIST -100 1213 1214/* 1215 * Open a file descriptor. This function returns a negative error code 1216 * on error, and a non-negative integer that is the file descriptor on 1217 * success. 1218 */ 1219JNIEXPORT jint JNICALL 1220JVM_Open(const char *fname, jint flags, jint mode); 1221 1222/* 1223 * Close a file descriptor. This function returns -1 on error, and 0 1224 * on success. 1225 * 1226 * fd the file descriptor to close. 1227 */ 1228JNIEXPORT jint JNICALL 1229JVM_Close(jint fd); 1230 1231/* 1232 * Read data from a file decriptor into a char array. 1233 * 1234 * fd the file descriptor to read from. 1235 * buf the buffer where to put the read data. 1236 * nbytes the number of bytes to read. 1237 * 1238 * This function returns -1 on error, and 0 on success. 1239 */ 1240JNIEXPORT jint JNICALL 1241JVM_Read(jint fd, char *buf, jint nbytes); 1242 1243/* 1244 * Write data from a char array to a file decriptor. 1245 * 1246 * fd the file descriptor to read from. 1247 * buf the buffer from which to fetch the data. 1248 * nbytes the number of bytes to write. 1249 * 1250 * This function returns -1 on error, and 0 on success. 1251 */ 1252JNIEXPORT jint JNICALL 1253JVM_Write(jint fd, char *buf, jint nbytes); 1254 1255/* 1256 * Returns the number of bytes available for reading from a given file 1257 * descriptor 1258 */ 1259JNIEXPORT jint JNICALL 1260JVM_Available(jint fd, jlong *pbytes); 1261 1262/* 1263 * Move the file descriptor pointer from whence by offset. 1264 * 1265 * fd the file descriptor to move. 1266 * offset the number of bytes to move it by. 1267 * whence the start from where to move it. 1268 * 1269 * This function returns the resulting pointer location. 1270 */ 1271JNIEXPORT jlong JNICALL 1272JVM_Lseek(jint fd, jlong offset, jint whence); 1273 1274/* 1275 * Set the length of the file associated with the given descriptor to the given 1276 * length. If the new length is longer than the current length then the file 1277 * is extended; the contents of the extended portion are not defined. The 1278 * value of the file pointer is undefined after this procedure returns. 1279 */ 1280JNIEXPORT jint JNICALL 1281JVM_SetLength(jint fd, jlong length); 1282 1283/* 1284 * Synchronize the file descriptor's in memory state with that of the 1285 * physical device. Return of -1 is an error, 0 is OK. 1286 */ 1287JNIEXPORT jint JNICALL 1288JVM_Sync(jint fd); 1289 1290/* 1291 * Networking library support 1292 */ 1293 1294JNIEXPORT jint JNICALL 1295JVM_InitializeSocketLibrary(void); 1296 1297struct sockaddr; 1298 1299JNIEXPORT jint JNICALL 1300JVM_Socket(jint domain, jint type, jint protocol); 1301 1302JNIEXPORT jint JNICALL 1303JVM_SocketClose(jint fd); 1304 1305JNIEXPORT jint JNICALL 1306JVM_SocketShutdown(jint fd, jint howto); 1307 1308JNIEXPORT jint JNICALL 1309JVM_Recv(jint fd, char *buf, jint nBytes, jint flags); 1310 1311JNIEXPORT jint JNICALL 1312JVM_Send(jint fd, char *buf, jint nBytes, jint flags); 1313 1314JNIEXPORT jint JNICALL 1315JVM_Timeout(int fd, long timeout); 1316 1317JNIEXPORT jint JNICALL 1318JVM_Listen(jint fd, jint count); 1319 1320JNIEXPORT jint JNICALL 1321JVM_Connect(jint fd, struct sockaddr *him, jint len); 1322 1323JNIEXPORT jint JNICALL 1324JVM_Bind(jint fd, struct sockaddr *him, jint len); 1325 1326JNIEXPORT jint JNICALL 1327JVM_Accept(jint fd, struct sockaddr *him, jint *len); 1328 1329JNIEXPORT jint JNICALL 1330JVM_RecvFrom(jint fd, char *buf, int nBytes, 1331 int flags, struct sockaddr *from, int *fromlen); 1332 1333JNIEXPORT jint JNICALL 1334JVM_SendTo(jint fd, char *buf, int len, 1335 int flags, struct sockaddr *to, int tolen); 1336 1337JNIEXPORT jint JNICALL 1338JVM_SocketAvailable(jint fd, jint *result); 1339 1340 1341JNIEXPORT jint JNICALL 1342JVM_GetSockName(jint fd, struct sockaddr *him, int *len); 1343 1344JNIEXPORT jint JNICALL 1345JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen); 1346 1347JNIEXPORT jint JNICALL 1348JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen); 1349 1350/* 1351 * These routines are only reentrant on Windows 1352 */ 1353 1354#ifdef _WINDOWS 1355 1356JNIEXPORT struct protoent * JNICALL 1357JVM_GetProtoByName(char* name); 1358 1359JNIEXPORT struct hostent* JNICALL 1360JVM_GetHostByAddr(const char* name, int len, int type); 1361 1362JNIEXPORT struct hostent* JNICALL 1363JVM_GetHostByName(char* name); 1364 1365#endif /* _WINDOWS */ 1366 1367JNIEXPORT int JNICALL 1368JVM_GetHostName(char* name, int namelen); 1369 1370/* 1371 * The standard printing functions supported by the Java VM. (Should they 1372 * be renamed to JVM_* in the future? 1373 */ 1374 1375/* 1376 * BE CAREFUL! The following functions do not implement the 1377 * full feature set of standard C printf formats. 1378 */ 1379int 1380jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1381 1382int 1383jio_snprintf(char *str, size_t count, const char *fmt, ...); 1384 1385int 1386jio_fprintf(FILE *, const char *fmt, ...); 1387 1388int 1389jio_vfprintf(FILE *, const char *fmt, va_list args); 1390 1391 1392JNIEXPORT void * JNICALL 1393JVM_RawMonitorCreate(void); 1394 1395JNIEXPORT void JNICALL 1396JVM_RawMonitorDestroy(void *mon); 1397 1398JNIEXPORT jint JNICALL 1399JVM_RawMonitorEnter(void *mon); 1400 1401JNIEXPORT void JNICALL 1402JVM_RawMonitorExit(void *mon); 1403 1404 1405#ifdef SUPPORT_OLD_REFLECTION 1406 1407/* 1408 * Support for old native code-based (pre-JDK 1.4) reflection implementation. 1409 * Disabled by default in the product build. 1410 * 1411 * See reflection.hpp for information on SUPPORT_OLD_REFLECTION 1412 */ 1413 1414/* 1415 * reflecting fields and methods. 1416 * which: 0 --- MEMBER_PUBLIC 1417 * 1 --- MEMBER_DECLARED 1418 * NOTE: absent in product build by default 1419 */ 1420 1421JNIEXPORT jobjectArray JNICALL 1422JVM_GetClassFields(JNIEnv *env, jclass cls, jint which); 1423 1424JNIEXPORT jobjectArray JNICALL 1425JVM_GetClassMethods(JNIEnv *env, jclass cls, jint which); 1426 1427JNIEXPORT jobjectArray JNICALL 1428JVM_GetClassConstructors(JNIEnv *env, jclass cls, jint which); 1429 1430JNIEXPORT jobject JNICALL 1431JVM_GetClassField(JNIEnv *env, jclass cls, jstring name, jint which); 1432 1433JNIEXPORT jobject JNICALL 1434JVM_GetClassMethod(JNIEnv *env, jclass cls, jstring name, jobjectArray types, 1435 jint which); 1436JNIEXPORT jobject JNICALL 1437JVM_GetClassConstructor(JNIEnv *env, jclass cls, jobjectArray types, 1438 jint which); 1439 1440/* 1441 * Implements Class.newInstance 1442 */ 1443JNIEXPORT jobject JNICALL 1444JVM_NewInstance(JNIEnv *env, jclass cls); 1445 1446/* 1447 * java.lang.reflect.Field 1448 */ 1449JNIEXPORT jobject JNICALL 1450JVM_GetField(JNIEnv *env, jobject field, jobject obj); 1451 1452JNIEXPORT jvalue JNICALL 1453JVM_GetPrimitiveField(JNIEnv *env, jobject field, jobject obj, 1454 unsigned char wCode); 1455 1456JNIEXPORT void JNICALL 1457JVM_SetField(JNIEnv *env, jobject field, jobject obj, jobject val); 1458 1459JNIEXPORT void JNICALL 1460JVM_SetPrimitiveField(JNIEnv *env, jobject field, jobject obj, jvalue v, 1461 unsigned char vCode); 1462 1463/* 1464 * java.lang.reflect.Method 1465 */ 1466JNIEXPORT jobject JNICALL 1467JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 1468 1469/* 1470 * java.lang.reflect.Constructor 1471 */ 1472JNIEXPORT jobject JNICALL 1473JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 1474 1475#endif /* SUPPORT_OLD_REFLECTION */ 1476 1477/* 1478 * java.lang.management support 1479 */ 1480JNIEXPORT void* JNICALL 1481JVM_GetManagement(jint version); 1482 1483/* 1484 * com.sun.tools.attach.VirtualMachine support 1485 * 1486 * Initialize the agent properties with the properties maintained in the VM. 1487 */ 1488JNIEXPORT jobject JNICALL 1489JVM_InitAgentProperties(JNIEnv *env, jobject agent_props); 1490 1491/* Generics reflection support. 1492 * 1493 * Returns information about the given class's EnclosingMethod 1494 * attribute, if present, or null if the class had no enclosing 1495 * method. 1496 * 1497 * If non-null, the returned array contains three elements. Element 0 1498 * is the java.lang.Class of which the enclosing method is a member, 1499 * and elements 1 and 2 are the java.lang.Strings for the enclosing 1500 * method's name and descriptor, respectively. 1501 */ 1502JNIEXPORT jobjectArray JNICALL 1503JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass); 1504 1505/* 1506 * Java thread state support 1507 */ 1508enum { 1509 JAVA_THREAD_STATE_NEW = 0, 1510 JAVA_THREAD_STATE_RUNNABLE = 1, 1511 JAVA_THREAD_STATE_BLOCKED = 2, 1512 JAVA_THREAD_STATE_WAITING = 3, 1513 JAVA_THREAD_STATE_TIMED_WAITING = 4, 1514 JAVA_THREAD_STATE_TERMINATED = 5, 1515 JAVA_THREAD_STATE_COUNT = 6 1516}; 1517 1518/* 1519 * Returns an array of the threadStatus values representing the 1520 * given Java thread state. Returns NULL if the VM version is 1521 * incompatible with the JDK or doesn't support the given 1522 * Java thread state. 1523 */ 1524JNIEXPORT jintArray JNICALL 1525JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState); 1526 1527/* 1528 * Returns an array of the substate names representing the 1529 * given Java thread state. Returns NULL if the VM version is 1530 * incompatible with the JDK or the VM doesn't support 1531 * the given Java thread state. 1532 * values must be the jintArray returned from JVM_GetThreadStateValues 1533 * and javaThreadState. 1534 */ 1535JNIEXPORT jobjectArray JNICALL 1536JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values); 1537 1538/* ========================================================================= 1539 * The following defines a private JVM interface that the JDK can query 1540 * for the JVM version and capabilities. sun.misc.Version defines 1541 * the methods for getting the VM version and its capabilities. 1542 * 1543 * When a new bit is added, the following should be updated to provide 1544 * access to the new capability: 1545 * HS: JVM_GetVersionInfo and Abstract_VM_Version class 1546 * SDK: Version class 1547 * 1548 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for 1549 * JVM to query for the JDK version and capabilities. 1550 * 1551 * When a new bit is added, the following should be updated to provide 1552 * access to the new capability: 1553 * HS: JDK_Version class 1554 * SDK: JDK_GetVersionInfo0 1555 * 1556 * ========================================================================== 1557 */ 1558typedef struct { 1559 /* HotSpot Express VM version string: 1560 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>] 1561 */ 1562 unsigned int jvm_version; /* Consists of major.minor.0.build */ 1563 unsigned int update_version : 8; /* 0 in HotSpot Express VM */ 1564 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */ 1565 unsigned int reserved1 : 16; 1566 unsigned int reserved2; 1567 1568 /* The following bits represents JVM supports that JDK has dependency on. 1569 * JDK can use these bits to determine which JVM version 1570 * and support it has to maintain runtime compatibility. 1571 * 1572 * When a new bit is added in a minor or update release, make sure 1573 * the new bit is also added in the main/baseline. 1574 */ 1575 unsigned int is_attachable : 1; 1576 unsigned int is_kernel_jvm : 1; 1577 unsigned int : 30; 1578 unsigned int : 32; 1579 unsigned int : 32; 1580} jvm_version_info; 1581 1582#define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1583#define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1584// Micro version is 0 in HotSpot Express VM (set in jvm.cpp). 1585#define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1586/* Build number is available in all HotSpot Express VM builds. 1587 * It is defined in make/hotspot_version file. 1588 */ 1589#define JVM_VERSION_BUILD(version) ((version & 0x000000FF)) 1590 1591JNIEXPORT void JNICALL 1592JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size); 1593 1594typedef struct { 1595 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx 1596 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */ 1597 /* and build number (xx) */ 1598 unsigned int update_version : 8; /* Update release version (uu) */ 1599 unsigned int special_update_version : 8; /* Special update release version (c)*/ 1600 unsigned int reserved1 : 16; 1601 unsigned int reserved2; 1602 1603 /* The following bits represents new JDK supports that VM has dependency on. 1604 * VM implementation can use these bits to determine which JDK version 1605 * and support it has to maintain runtime compatibility. 1606 * 1607 * When a new bit is added in a minor or update release, make sure 1608 * the new bit is also added in the main/baseline. 1609 */ 1610 unsigned int thread_park_blocker : 1; 1611 unsigned int : 31; 1612 unsigned int : 32; 1613 unsigned int : 32; 1614} jdk_version_info; 1615 1616#define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1617#define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1618#define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1619 1620/* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN) 1621 * It will be zero for internal builds. 1622 */ 1623#define JDK_VERSION_BUILD(version) ((version & 0x000000FF)) 1624 1625/* 1626 * This is the function JDK_GetVersionInfo0 defined in libjava.so 1627 * that is dynamically looked up by JVM. 1628 */ 1629typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size); 1630 1631/* 1632 * This structure is used by the launcher to get the default thread 1633 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a 1634 * version of 1.1. As it is not supported otherwise, it has been removed 1635 * from jni.h 1636 */ 1637typedef struct JDK1_1InitArgs { 1638 jint version; 1639 1640 char **properties; 1641 jint checkSource; 1642 jint nativeStackSize; 1643 jint javaStackSize; 1644 jint minHeapSize; 1645 jint maxHeapSize; 1646 jint verifyMode; 1647 char *classpath; 1648 1649 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args); 1650 void (JNICALL *exit)(jint code); 1651 void (JNICALL *abort)(void); 1652 1653 jint enableClassGC; 1654 jint enableVerboseGC; 1655 jint disableAsyncGC; 1656 jint verbose; 1657 jboolean debugging; 1658 jint debugPort; 1659} JDK1_1InitArgs; 1660 1661#ifdef __cplusplus 1662} /* extern "C" */ 1663#endif /* __cplusplus */ 1664 1665#endif /* !_JAVASOFT_JVM_H_ */ 1666