1 /* 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_PRIMS_JVM_H 26 #define SHARE_VM_PRIMS_JVM_H 27 28 #include "prims/jni.h" 29 #ifdef TARGET_OS_FAMILY_linux 30 # include "jvm_linux.h" 31 #endif 32 #ifdef TARGET_OS_FAMILY_solaris 33 # include "jvm_solaris.h" 34 #endif 35 #ifdef TARGET_OS_FAMILY_windows 36 # include "jvm_windows.h" 37 #endif 38 #ifdef TARGET_OS_FAMILY_aix 39 # include "jvm_aix.h" 40 #endif 41 #ifdef TARGET_OS_FAMILY_bsd 42 # include "jvm_bsd.h" 43 #endif 44 45 #ifndef _JAVASOFT_JVM_H_ 46 #define _JAVASOFT_JVM_H_ 47 48 // HotSpot integration note: 49 // 50 // This file and jvm.h used with the JDK are identical, 51 // except for the three includes removed below 52 53 // #include <sys/stat.h> 54 // #include "jni.h" 55 // #include "jvm_md.h" 56 57 58 #ifdef __cplusplus 59 extern "C" { 60 #endif 61 62 /* 63 * This file contains additional functions exported from the VM. 64 * These functions are complementary to the standard JNI support. 65 * There are three parts to this file: 66 * 67 * First, this file contains the VM-related functions needed by native 68 * libraries in the standard Java API. For example, the java.lang.Object 69 * class needs VM-level functions that wait for and notify monitors. 70 * 71 * Second, this file contains the functions and constant definitions 72 * needed by the byte code verifier and class file format checker. 73 * These functions allow the verifier and format checker to be written 74 * in a VM-independent way. 75 * 76 * Third, this file contains various I/O and nerwork operations needed 77 * by the standard Java I/O and network APIs. 78 */ 79 80 /* 81 * Bump the version number when either of the following happens: 82 * 83 * 1. There is a change in JVM_* functions. 84 * 85 * 2. There is a change in the contract between VM and Java classes. 86 * For example, if the VM relies on a new private field in Thread 87 * class. 88 */ 89 90 #define JVM_INTERFACE_VERSION 4 91 92 JNIEXPORT jobjectArray JNICALL 93 JVM_GetMethodParameters(JNIEnv *env, jobject method); 94 95 JNIEXPORT jint JNICALL 96 JVM_GetInterfaceVersion(void); 97 98 /************************************************************************* 99 PART 1: Functions for Native Libraries 100 ************************************************************************/ 101 /* 102 * java.lang.Object 103 */ 104 JNIEXPORT jint JNICALL 105 JVM_IHashCode(JNIEnv *env, jobject obj); 106 107 JNIEXPORT void JNICALL 108 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms); 109 110 JNIEXPORT void JNICALL 111 JVM_MonitorNotify(JNIEnv *env, jobject obj); 112 113 JNIEXPORT void JNICALL 114 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj); 115 116 JNIEXPORT jobject JNICALL 117 JVM_Clone(JNIEnv *env, jobject obj); 118 119 /* 120 * java.lang.String 121 */ 122 JNIEXPORT jstring JNICALL 123 JVM_InternString(JNIEnv *env, jstring str); 124 125 /* 126 * java.lang.System 127 */ 128 JNIEXPORT jlong JNICALL 129 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored); 130 131 JNIEXPORT jlong JNICALL 132 JVM_NanoTime(JNIEnv *env, jclass ignored); 133 134 JNIEXPORT void JNICALL 135 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos, 136 jobject dst, jint dst_pos, jint length); 137 138 JNIEXPORT jobject JNICALL 139 JVM_InitProperties(JNIEnv *env, jobject p); 140 141 /* 142 * java.io.File 143 */ 144 JNIEXPORT void JNICALL 145 JVM_OnExit(void (*func)(void)); 146 147 /* 148 * java.lang.Runtime 149 */ 150 JNIEXPORT void JNICALL 151 JVM_Exit(jint code); 152 153 JNIEXPORT void JNICALL 154 JVM_Halt(jint code); 155 156 JNIEXPORT void JNICALL 157 JVM_GC(void); 158 159 /* Returns the number of real-time milliseconds that have elapsed since the 160 * least-recently-inspected heap object was last inspected by the garbage 161 * collector. 162 * 163 * For simple stop-the-world collectors this value is just the time 164 * since the most recent collection. For generational collectors it is the 165 * time since the oldest generation was most recently collected. Other 166 * collectors are free to return a pessimistic estimate of the elapsed time, or 167 * simply the time since the last full collection was performed. 168 * 169 * Note that in the presence of reference objects, a given object that is no 170 * longer strongly reachable may have to be inspected multiple times before it 171 * can be reclaimed. 172 */ 173 JNIEXPORT jlong JNICALL 174 JVM_MaxObjectInspectionAge(void); 175 176 JNIEXPORT void JNICALL 177 JVM_TraceInstructions(jboolean on); 178 179 JNIEXPORT void JNICALL 180 JVM_TraceMethodCalls(jboolean on); 181 182 JNIEXPORT jlong JNICALL 183 JVM_TotalMemory(void); 184 185 JNIEXPORT jlong JNICALL 186 JVM_FreeMemory(void); 187 188 JNIEXPORT jlong JNICALL 189 JVM_MaxMemory(void); 190 191 JNIEXPORT jint JNICALL 192 JVM_ActiveProcessorCount(void); 193 194 JNIEXPORT void * JNICALL 195 JVM_LoadLibrary(const char *name); 196 197 JNIEXPORT void JNICALL 198 JVM_UnloadLibrary(void * handle); 199 200 JNIEXPORT void * JNICALL 201 JVM_FindLibraryEntry(void *handle, const char *name); 202 203 JNIEXPORT jboolean JNICALL 204 JVM_IsSupportedJNIVersion(jint version); 205 206 /* 207 * java.lang.Float and java.lang.Double 208 */ 209 JNIEXPORT jboolean JNICALL 210 JVM_IsNaN(jdouble d); 211 212 /* 213 * java.lang.Throwable 214 */ 215 JNIEXPORT void JNICALL 216 JVM_FillInStackTrace(JNIEnv *env, jobject throwable); 217 218 JNIEXPORT jint JNICALL 219 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable); 220 221 JNIEXPORT jobject JNICALL 222 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index); 223 224 /* 225 * java.lang.Compiler 226 */ 227 JNIEXPORT void JNICALL 228 JVM_InitializeCompiler (JNIEnv *env, jclass compCls); 229 230 JNIEXPORT jboolean JNICALL 231 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls); 232 233 JNIEXPORT jboolean JNICALL 234 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls); 235 236 JNIEXPORT jboolean JNICALL 237 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname); 238 239 JNIEXPORT jobject JNICALL 240 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg); 241 242 JNIEXPORT void JNICALL 243 JVM_EnableCompiler(JNIEnv *env, jclass compCls); 244 245 JNIEXPORT void JNICALL 246 JVM_DisableCompiler(JNIEnv *env, jclass compCls); 247 248 /* 249 * java.lang.Thread 250 */ 251 JNIEXPORT void JNICALL 252 JVM_StartThread(JNIEnv *env, jobject thread); 253 254 JNIEXPORT void JNICALL 255 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception); 256 257 JNIEXPORT jboolean JNICALL 258 JVM_IsThreadAlive(JNIEnv *env, jobject thread); 259 260 JNIEXPORT void JNICALL 261 JVM_SuspendThread(JNIEnv *env, jobject thread); 262 263 JNIEXPORT void JNICALL 264 JVM_ResumeThread(JNIEnv *env, jobject thread); 265 266 JNIEXPORT void JNICALL 267 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio); 268 269 JNIEXPORT void JNICALL 270 JVM_Yield(JNIEnv *env, jclass threadClass); 271 272 JNIEXPORT void JNICALL 273 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis); 274 275 JNIEXPORT jobject JNICALL 276 JVM_CurrentThread(JNIEnv *env, jclass threadClass); 277 278 JNIEXPORT jint JNICALL 279 JVM_CountStackFrames(JNIEnv *env, jobject thread); 280 281 JNIEXPORT void JNICALL 282 JVM_Interrupt(JNIEnv *env, jobject thread); 283 284 JNIEXPORT jboolean JNICALL 285 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted); 286 287 JNIEXPORT jboolean JNICALL 288 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj); 289 290 JNIEXPORT void JNICALL 291 JVM_DumpAllStacks(JNIEnv *env, jclass unused); 292 293 JNIEXPORT jobjectArray JNICALL 294 JVM_GetAllThreads(JNIEnv *env, jclass dummy); 295 296 JNIEXPORT void JNICALL 297 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name); 298 299 /* getStackTrace() and getAllStackTraces() method */ 300 JNIEXPORT jobjectArray JNICALL 301 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads); 302 303 /* 304 * java.lang.SecurityManager 305 */ 306 JNIEXPORT jclass JNICALL 307 JVM_CurrentLoadedClass(JNIEnv *env); 308 309 JNIEXPORT jobject JNICALL 310 JVM_CurrentClassLoader(JNIEnv *env); 311 312 JNIEXPORT jobjectArray JNICALL 313 JVM_GetClassContext(JNIEnv *env); 314 315 JNIEXPORT jint JNICALL 316 JVM_ClassDepth(JNIEnv *env, jstring name); 317 318 JNIEXPORT jint JNICALL 319 JVM_ClassLoaderDepth(JNIEnv *env); 320 321 /* 322 * java.lang.Package 323 */ 324 JNIEXPORT jstring JNICALL 325 JVM_GetSystemPackage(JNIEnv *env, jstring name); 326 327 JNIEXPORT jobjectArray JNICALL 328 JVM_GetSystemPackages(JNIEnv *env); 329 330 /* 331 * java.io.ObjectInputStream 332 */ 333 JNIEXPORT jobject JNICALL 334 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass, 335 jclass initClass); 336 337 JNIEXPORT jobject JNICALL 338 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass, 339 jint length); 340 341 JNIEXPORT jobject JNICALL 342 JVM_LatestUserDefinedLoader(JNIEnv *env); 343 344 /* 345 * This function has been deprecated and should not be considered 346 * part of the specified JVM interface. 347 */ 348 JNIEXPORT jclass JNICALL 349 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass, 350 jstring currClassName); 351 352 /* 353 * java.lang.reflect.Array 354 */ 355 JNIEXPORT jint JNICALL 356 JVM_GetArrayLength(JNIEnv *env, jobject arr); 357 358 JNIEXPORT jobject JNICALL 359 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index); 360 361 JNIEXPORT jvalue JNICALL 362 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode); 363 364 JNIEXPORT void JNICALL 365 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val); 366 367 JNIEXPORT void JNICALL 368 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v, 369 unsigned char vCode); 370 371 JNIEXPORT jobject JNICALL 372 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length); 373 374 JNIEXPORT jobject JNICALL 375 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim); 376 377 /* 378 * java.lang.Class and java.lang.ClassLoader 379 */ 380 381 #define JVM_CALLER_DEPTH -1 382 383 /* 384 * Returns the class in which the code invoking the native method 385 * belongs. 386 * 387 * Note that in JDK 1.1, native methods did not create a frame. 388 * In 1.2, they do. Therefore native methods like Class.forName 389 * can no longer look at the current frame for the caller class. 390 */ 391 JNIEXPORT jclass JNICALL 392 JVM_GetCallerClass(JNIEnv *env, int n); 393 394 /* 395 * Find primitive classes 396 * utf: class name 397 */ 398 JNIEXPORT jclass JNICALL 399 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf); 400 401 /* 402 * Link the class 403 */ 404 JNIEXPORT void JNICALL 405 JVM_ResolveClass(JNIEnv *env, jclass cls); 406 407 /* 408 * Find a class from a given class loader. Throw ClassNotFoundException 409 * or NoClassDefFoundError depending on the value of the last 410 * argument. 411 */ 412 JNIEXPORT jclass JNICALL 413 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init, 414 jobject loader, jboolean throwError); 415 416 /* 417 * Find a class from a boot class loader. Returns NULL if class not found. 418 */ 419 JNIEXPORT jclass JNICALL 420 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name); 421 422 /* 423 * Find a class from a given class. 424 */ 425 JNIEXPORT jclass JNICALL 426 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init, 427 jclass from); 428 429 /* Find a loaded class cached by the VM */ 430 JNIEXPORT jclass JNICALL 431 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name); 432 433 /* Define a class */ 434 JNIEXPORT jclass JNICALL 435 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, 436 jsize len, jobject pd); 437 438 /* Define a class with a source (added in JDK1.5) */ 439 JNIEXPORT jclass JNICALL 440 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader, 441 const jbyte *buf, jsize len, jobject pd, 442 const char *source); 443 444 /* Define a class with a source with conditional verification (added HSX 14) 445 * -Xverify:all will verify anyway, -Xverify:none will not verify, 446 * -Xverify:remote (default) will obey this conditional 447 * i.e. true = should_verify_class 448 */ 449 JNIEXPORT jclass JNICALL 450 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name, 451 jobject loader, const jbyte *buf, 452 jsize len, jobject pd, const char *source, 453 jboolean verify); 454 455 /* 456 * Reflection support functions 457 */ 458 459 JNIEXPORT jstring JNICALL 460 JVM_GetClassName(JNIEnv *env, jclass cls); 461 462 JNIEXPORT jobjectArray JNICALL 463 JVM_GetClassInterfaces(JNIEnv *env, jclass cls); 464 465 JNIEXPORT jobject JNICALL 466 JVM_GetClassLoader(JNIEnv *env, jclass cls); 467 468 JNIEXPORT jboolean JNICALL 469 JVM_IsInterface(JNIEnv *env, jclass cls); 470 471 JNIEXPORT jobjectArray JNICALL 472 JVM_GetClassSigners(JNIEnv *env, jclass cls); 473 474 JNIEXPORT void JNICALL 475 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers); 476 477 JNIEXPORT jobject JNICALL 478 JVM_GetProtectionDomain(JNIEnv *env, jclass cls); 479 480 JNIEXPORT jboolean JNICALL 481 JVM_IsArrayClass(JNIEnv *env, jclass cls); 482 483 JNIEXPORT jboolean JNICALL 484 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls); 485 486 JNIEXPORT jclass JNICALL 487 JVM_GetComponentType(JNIEnv *env, jclass cls); 488 489 JNIEXPORT jint JNICALL 490 JVM_GetClassModifiers(JNIEnv *env, jclass cls); 491 492 JNIEXPORT jobjectArray JNICALL 493 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass); 494 495 JNIEXPORT jclass JNICALL 496 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass); 497 498 /* Generics support (JDK 1.5) */ 499 JNIEXPORT jstring JNICALL 500 JVM_GetClassSignature(JNIEnv *env, jclass cls); 501 502 /* Annotations support (JDK 1.5) */ 503 JNIEXPORT jbyteArray JNICALL 504 JVM_GetClassAnnotations(JNIEnv *env, jclass cls); 505 506 /* Annotations support (JDK 1.6) */ 507 508 // field is a handle to a java.lang.reflect.Field object 509 JNIEXPORT jbyteArray JNICALL 510 JVM_GetFieldAnnotations(JNIEnv *env, jobject field); 511 512 // method is a handle to a java.lang.reflect.Method object 513 JNIEXPORT jbyteArray JNICALL 514 JVM_GetMethodAnnotations(JNIEnv *env, jobject method); 515 516 // method is a handle to a java.lang.reflect.Method object 517 JNIEXPORT jbyteArray JNICALL 518 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method); 519 520 // method is a handle to a java.lang.reflect.Method object 521 JNIEXPORT jbyteArray JNICALL 522 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method); 523 524 /* Type use annotations support (JDK 1.8) */ 525 526 JNIEXPORT jbyteArray JNICALL 527 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls); 528 529 // field is a handle to a java.lang.reflect.Field object 530 JNIEXPORT jbyteArray JNICALL 531 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field); 532 533 // method is a handle to a java.lang.reflect.Method object 534 JNIEXPORT jbyteArray JNICALL 535 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method); 536 537 /* 538 * New (JDK 1.4) reflection implementation 539 */ 540 541 JNIEXPORT jobjectArray JNICALL 542 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly); 543 544 JNIEXPORT jobjectArray JNICALL 545 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly); 546 547 JNIEXPORT jobjectArray JNICALL 548 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly); 549 550 /* Differs from JVM_GetClassModifiers in treatment of inner classes. 551 This returns the access flags for the class as specified in the 552 class file rather than searching the InnerClasses attribute (if 553 present) to find the source-level access flags. Only the values of 554 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be 555 valid. */ 556 JNIEXPORT jint JNICALL 557 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls); 558 559 /* 560 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5) 561 */ 562 563 JNIEXPORT jobject JNICALL 564 JVM_GetClassConstantPool(JNIEnv *env, jclass cls); 565 566 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize 567 (JNIEnv *env, jobject obj, jobject unused); 568 569 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt 570 (JNIEnv *env, jobject obj, jobject unused, jint index); 571 572 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded 573 (JNIEnv *env, jobject obj, jobject unused, jint index); 574 575 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt 576 (JNIEnv *env, jobject obj, jobject unused, jint index); 577 578 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded 579 (JNIEnv *env, jobject obj, jobject unused, jint index); 580 581 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt 582 (JNIEnv *env, jobject obj, jobject unused, jint index); 583 584 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded 585 (JNIEnv *env, jobject obj, jobject unused, jint index); 586 587 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt 588 (JNIEnv *env, jobject obj, jobject unused, jint index); 589 590 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt 591 (JNIEnv *env, jobject obj, jobject unused, jint index); 592 593 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt 594 (JNIEnv *env, jobject obj, jobject unused, jint index); 595 596 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt 597 (JNIEnv *env, jobject obj, jobject unused, jint index); 598 599 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt 600 (JNIEnv *env, jobject obj, jobject unused, jint index); 601 602 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt 603 (JNIEnv *env, jobject obj, jobject unused, jint index); 604 605 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At 606 (JNIEnv *env, jobject obj, jobject unused, jint index); 607 608 /* 609 * java.security.* 610 */ 611 612 JNIEXPORT jobject JNICALL 613 JVM_DoPrivileged(JNIEnv *env, jclass cls, 614 jobject action, jobject context, jboolean wrapException); 615 616 JNIEXPORT jobject JNICALL 617 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls); 618 619 JNIEXPORT jobject JNICALL 620 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls); 621 622 /* 623 * Signal support, used to implement the shutdown sequence. Every VM must 624 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts 625 * (^C) and the latter for external termination (kill, system shutdown, etc.). 626 * Other platform-dependent signal values may also be supported. 627 */ 628 629 JNIEXPORT void * JNICALL 630 JVM_RegisterSignal(jint sig, void *handler); 631 632 JNIEXPORT jboolean JNICALL 633 JVM_RaiseSignal(jint sig); 634 635 JNIEXPORT jint JNICALL 636 JVM_FindSignal(const char *name); 637 638 /* 639 * Retrieve the assertion directives for the specified class. 640 */ 641 JNIEXPORT jboolean JNICALL 642 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls); 643 644 /* 645 * Retrieve the assertion directives from the VM. 646 */ 647 JNIEXPORT jobject JNICALL 648 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused); 649 650 /* 651 * java.util.concurrent.atomic.AtomicLong 652 */ 653 JNIEXPORT jboolean JNICALL 654 JVM_SupportsCX8(void); 655 656 JNIEXPORT jboolean JNICALL 657 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal); 658 659 /* 660 * com.sun.dtrace.jsdt support 661 */ 662 663 #define JVM_TRACING_DTRACE_VERSION 1 664 665 /* 666 * Structure to pass one probe description to JVM. 667 * 668 * The VM will overwrite the definition of the referenced method with 669 * code that will fire the probe. 670 */ 671 typedef struct { 672 jmethodID method; 673 jstring function; 674 jstring name; 675 void* reserved[4]; // for future use 676 } JVM_DTraceProbe; 677 678 /** 679 * Encapsulates the stability ratings for a DTrace provider field 680 */ 681 typedef struct { 682 jint nameStability; 683 jint dataStability; 684 jint dependencyClass; 685 } JVM_DTraceInterfaceAttributes; 686 687 /* 688 * Structure to pass one provider description to JVM 689 */ 690 typedef struct { 691 jstring name; 692 JVM_DTraceProbe* probes; 693 jint probe_count; 694 JVM_DTraceInterfaceAttributes providerAttributes; 695 JVM_DTraceInterfaceAttributes moduleAttributes; 696 JVM_DTraceInterfaceAttributes functionAttributes; 697 JVM_DTraceInterfaceAttributes nameAttributes; 698 JVM_DTraceInterfaceAttributes argsAttributes; 699 void* reserved[4]; // for future use 700 } JVM_DTraceProvider; 701 702 /* 703 * Get the version number the JVM was built with 704 */ 705 JNIEXPORT jint JNICALL 706 JVM_DTraceGetVersion(JNIEnv* env); 707 708 /* 709 * Register new probe with given signature, return global handle 710 * 711 * The version passed in is the version that the library code was 712 * built with. 713 */ 714 JNIEXPORT jlong JNICALL 715 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name, 716 jint providers_count, JVM_DTraceProvider* providers); 717 718 /* 719 * Check JSDT probe 720 */ 721 JNIEXPORT jboolean JNICALL 722 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method); 723 724 /* 725 * Destroy custom DOF 726 */ 727 JNIEXPORT void JNICALL 728 JVM_DTraceDispose(JNIEnv* env, jlong handle); 729 730 /* 731 * Check to see if DTrace is supported by OS 732 */ 733 JNIEXPORT jboolean JNICALL 734 JVM_DTraceIsSupported(JNIEnv* env); 735 736 /************************************************************************* 737 PART 2: Support for the Verifier and Class File Format Checker 738 ************************************************************************/ 739 /* 740 * Return the class name in UTF format. The result is valid 741 * until JVM_ReleaseUTf is called. 742 * 743 * The caller must treat the string as a constant and not modify it 744 * in any way. 745 */ 746 JNIEXPORT const char * JNICALL 747 JVM_GetClassNameUTF(JNIEnv *env, jclass cb); 748 749 /* 750 * Returns the constant pool types in the buffer provided by "types." 751 */ 752 JNIEXPORT void JNICALL 753 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types); 754 755 /* 756 * Returns the number of Constant Pool entries. 757 */ 758 JNIEXPORT jint JNICALL 759 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb); 760 761 /* 762 * Returns the number of *declared* fields or methods. 763 */ 764 JNIEXPORT jint JNICALL 765 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb); 766 767 JNIEXPORT jint JNICALL 768 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb); 769 770 /* 771 * Returns the CP indexes of exceptions raised by a given method. 772 * Places the result in the given buffer. 773 * 774 * The method is identified by method_index. 775 */ 776 JNIEXPORT void JNICALL 777 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index, 778 unsigned short *exceptions); 779 /* 780 * Returns the number of exceptions raised by a given method. 781 * The method is identified by method_index. 782 */ 783 JNIEXPORT jint JNICALL 784 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index); 785 786 /* 787 * Returns the byte code sequence of a given method. 788 * Places the result in the given buffer. 789 * 790 * The method is identified by method_index. 791 */ 792 JNIEXPORT void JNICALL 793 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index, 794 unsigned char *code); 795 796 /* 797 * Returns the length of the byte code sequence of a given method. 798 * The method is identified by method_index. 799 */ 800 JNIEXPORT jint JNICALL 801 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index); 802 803 /* 804 * A structure used to a capture exception table entry in a Java method. 805 */ 806 typedef struct { 807 jint start_pc; 808 jint end_pc; 809 jint handler_pc; 810 jint catchType; 811 } JVM_ExceptionTableEntryType; 812 813 /* 814 * Returns the exception table entry at entry_index of a given method. 815 * Places the result in the given buffer. 816 * 817 * The method is identified by method_index. 818 */ 819 JNIEXPORT void JNICALL 820 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index, 821 jint entry_index, 822 JVM_ExceptionTableEntryType *entry); 823 824 /* 825 * Returns the length of the exception table of a given method. 826 * The method is identified by method_index. 827 */ 828 JNIEXPORT jint JNICALL 829 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index); 830 831 /* 832 * Returns the modifiers of a given field. 833 * The field is identified by field_index. 834 */ 835 JNIEXPORT jint JNICALL 836 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index); 837 838 /* 839 * Returns the modifiers of a given method. 840 * The method is identified by method_index. 841 */ 842 JNIEXPORT jint JNICALL 843 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index); 844 845 /* 846 * Returns the number of local variables of a given method. 847 * The method is identified by method_index. 848 */ 849 JNIEXPORT jint JNICALL 850 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index); 851 852 /* 853 * Returns the number of arguments (including this pointer) of a given method. 854 * The method is identified by method_index. 855 */ 856 JNIEXPORT jint JNICALL 857 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index); 858 859 /* 860 * Returns the maximum amount of stack (in words) used by a given method. 861 * The method is identified by method_index. 862 */ 863 JNIEXPORT jint JNICALL 864 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index); 865 866 /* 867 * Is a given method a constructor. 868 * The method is identified by method_index. 869 */ 870 JNIEXPORT jboolean JNICALL 871 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index); 872 873 /* 874 * Is the given method generated by the VM. 875 * The method is identified by method_index. 876 */ 877 JNIEXPORT jboolean JNICALL 878 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index); 879 880 /* 881 * Returns the name of a given method in UTF format. 882 * The result remains valid until JVM_ReleaseUTF is called. 883 * 884 * The caller must treat the string as a constant and not modify it 885 * in any way. 886 */ 887 JNIEXPORT const char * JNICALL 888 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index); 889 890 /* 891 * Returns the signature of a given method in UTF format. 892 * The result remains valid until JVM_ReleaseUTF is called. 893 * 894 * The caller must treat the string as a constant and not modify it 895 * in any way. 896 */ 897 JNIEXPORT const char * JNICALL 898 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index); 899 900 /* 901 * Returns the name of the field refered to at a given constant pool 902 * index. 903 * 904 * The result is in UTF format and remains valid until JVM_ReleaseUTF 905 * is called. 906 * 907 * The caller must treat the string as a constant and not modify it 908 * in any way. 909 */ 910 JNIEXPORT const char * JNICALL 911 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index); 912 913 /* 914 * Returns the name of the method refered to at a given constant pool 915 * index. 916 * 917 * The result is in UTF format and remains valid until JVM_ReleaseUTF 918 * is called. 919 * 920 * The caller must treat the string as a constant and not modify it 921 * in any way. 922 */ 923 JNIEXPORT const char * JNICALL 924 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index); 925 926 /* 927 * Returns the signature of the method refered to at a given constant pool 928 * index. 929 * 930 * The result is in UTF format and remains valid until JVM_ReleaseUTF 931 * is called. 932 * 933 * The caller must treat the string as a constant and not modify it 934 * in any way. 935 */ 936 JNIEXPORT const char * JNICALL 937 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index); 938 939 /* 940 * Returns the signature of the field refered to at a given constant pool 941 * index. 942 * 943 * The result is in UTF format and remains valid until JVM_ReleaseUTF 944 * is called. 945 * 946 * The caller must treat the string as a constant and not modify it 947 * in any way. 948 */ 949 JNIEXPORT const char * JNICALL 950 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index); 951 952 /* 953 * Returns the class name refered to at a given constant pool index. 954 * 955 * The result is in UTF format and remains valid until JVM_ReleaseUTF 956 * is called. 957 * 958 * The caller must treat the string as a constant and not modify it 959 * in any way. 960 */ 961 JNIEXPORT const char * JNICALL 962 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index); 963 964 /* 965 * Returns the class name refered to at a given constant pool index. 966 * 967 * The constant pool entry must refer to a CONSTANT_Fieldref. 968 * 969 * The result is in UTF format and remains valid until JVM_ReleaseUTF 970 * is called. 971 * 972 * The caller must treat the string as a constant and not modify it 973 * in any way. 974 */ 975 JNIEXPORT const char * JNICALL 976 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index); 977 978 /* 979 * Returns the class name refered to at a given constant pool index. 980 * 981 * The constant pool entry must refer to CONSTANT_Methodref or 982 * CONSTANT_InterfaceMethodref. 983 * 984 * The result is in UTF format and remains valid until JVM_ReleaseUTF 985 * is called. 986 * 987 * The caller must treat the string as a constant and not modify it 988 * in any way. 989 */ 990 JNIEXPORT const char * JNICALL 991 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index); 992 993 /* 994 * Returns the modifiers of a field in calledClass. The field is 995 * referred to in class cb at constant pool entry index. 996 * 997 * The caller must treat the string as a constant and not modify it 998 * in any way. 999 * 1000 * Returns -1 if the field does not exist in calledClass. 1001 */ 1002 JNIEXPORT jint JNICALL 1003 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 1004 1005 /* 1006 * Returns the modifiers of a method in calledClass. The method is 1007 * referred to in class cb at constant pool entry index. 1008 * 1009 * Returns -1 if the method does not exist in calledClass. 1010 */ 1011 JNIEXPORT jint JNICALL 1012 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass); 1013 1014 /* 1015 * Releases the UTF string obtained from the VM. 1016 */ 1017 JNIEXPORT void JNICALL 1018 JVM_ReleaseUTF(const char *utf); 1019 1020 /* 1021 * Compare if two classes are in the same package. 1022 */ 1023 JNIEXPORT jboolean JNICALL 1024 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2); 1025 1026 /* Constants in class files */ 1027 1028 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */ 1029 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */ 1030 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */ 1031 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */ 1032 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */ 1033 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */ 1034 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */ 1035 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */ 1036 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */ 1037 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */ 1038 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */ 1039 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */ 1040 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */ 1041 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */ 1042 #define JVM_ACC_STRICT 0x0800 /* strict floating point */ 1043 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */ 1044 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */ 1045 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */ 1046 1047 #define JVM_ACC_PUBLIC_BIT 0 1048 #define JVM_ACC_PRIVATE_BIT 1 1049 #define JVM_ACC_PROTECTED_BIT 2 1050 #define JVM_ACC_STATIC_BIT 3 1051 #define JVM_ACC_FINAL_BIT 4 1052 #define JVM_ACC_SYNCHRONIZED_BIT 5 1053 #define JVM_ACC_SUPER_BIT 5 1054 #define JVM_ACC_VOLATILE_BIT 6 1055 #define JVM_ACC_BRIDGE_BIT 6 1056 #define JVM_ACC_TRANSIENT_BIT 7 1057 #define JVM_ACC_VARARGS_BIT 7 1058 #define JVM_ACC_NATIVE_BIT 8 1059 #define JVM_ACC_INTERFACE_BIT 9 1060 #define JVM_ACC_ABSTRACT_BIT 10 1061 #define JVM_ACC_STRICT_BIT 11 1062 #define JVM_ACC_SYNTHETIC_BIT 12 1063 #define JVM_ACC_ANNOTATION_BIT 13 1064 #define JVM_ACC_ENUM_BIT 14 1065 1066 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java 1067 enum { 1068 JVM_CONSTANT_Utf8 = 1, 1069 JVM_CONSTANT_Unicode, /* unused */ 1070 JVM_CONSTANT_Integer, 1071 JVM_CONSTANT_Float, 1072 JVM_CONSTANT_Long, 1073 JVM_CONSTANT_Double, 1074 JVM_CONSTANT_Class, 1075 JVM_CONSTANT_String, 1076 JVM_CONSTANT_Fieldref, 1077 JVM_CONSTANT_Methodref, 1078 JVM_CONSTANT_InterfaceMethodref, 1079 JVM_CONSTANT_NameAndType, 1080 JVM_CONSTANT_MethodHandle = 15, // JSR 292 1081 JVM_CONSTANT_MethodType = 16, // JSR 292 1082 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only 1083 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292 1084 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles 1085 }; 1086 1087 /* JVM_CONSTANT_MethodHandle subtypes */ 1088 enum { 1089 JVM_REF_getField = 1, 1090 JVM_REF_getStatic = 2, 1091 JVM_REF_putField = 3, 1092 JVM_REF_putStatic = 4, 1093 JVM_REF_invokeVirtual = 5, 1094 JVM_REF_invokeStatic = 6, 1095 JVM_REF_invokeSpecial = 7, 1096 JVM_REF_newInvokeSpecial = 8, 1097 JVM_REF_invokeInterface = 9 1098 }; 1099 1100 /* Used in the newarray instruction. */ 1101 1102 #define JVM_T_BOOLEAN 4 1103 #define JVM_T_CHAR 5 1104 #define JVM_T_FLOAT 6 1105 #define JVM_T_DOUBLE 7 1106 #define JVM_T_BYTE 8 1107 #define JVM_T_SHORT 9 1108 #define JVM_T_INT 10 1109 #define JVM_T_LONG 11 1110 1111 /* JVM method signatures */ 1112 1113 #define JVM_SIGNATURE_ARRAY '[' 1114 #define JVM_SIGNATURE_BYTE 'B' 1115 #define JVM_SIGNATURE_CHAR 'C' 1116 #define JVM_SIGNATURE_CLASS 'L' 1117 #define JVM_SIGNATURE_ENDCLASS ';' 1118 #define JVM_SIGNATURE_ENUM 'E' 1119 #define JVM_SIGNATURE_FLOAT 'F' 1120 #define JVM_SIGNATURE_DOUBLE 'D' 1121 #define JVM_SIGNATURE_FUNC '(' 1122 #define JVM_SIGNATURE_ENDFUNC ')' 1123 #define JVM_SIGNATURE_INT 'I' 1124 #define JVM_SIGNATURE_LONG 'J' 1125 #define JVM_SIGNATURE_SHORT 'S' 1126 #define JVM_SIGNATURE_VOID 'V' 1127 #define JVM_SIGNATURE_BOOLEAN 'Z' 1128 1129 /* 1130 * A function defined by the byte-code verifier and called by the VM. 1131 * This is not a function implemented in the VM. 1132 * 1133 * Returns JNI_FALSE if verification fails. A detailed error message 1134 * will be places in msg_buf, whose length is specified by buf_len. 1135 */ 1136 typedef jboolean (*verifier_fn_t)(JNIEnv *env, 1137 jclass cb, 1138 char * msg_buf, 1139 jint buf_len); 1140 1141 1142 /* 1143 * Support for a VM-independent class format checker. 1144 */ 1145 typedef struct { 1146 unsigned long code; /* byte code */ 1147 unsigned long excs; /* exceptions */ 1148 unsigned long etab; /* catch table */ 1149 unsigned long lnum; /* line number */ 1150 unsigned long lvar; /* local vars */ 1151 } method_size_info; 1152 1153 typedef struct { 1154 unsigned int constants; /* constant pool */ 1155 unsigned int fields; 1156 unsigned int methods; 1157 unsigned int interfaces; 1158 unsigned int fields2; /* number of static 2-word fields */ 1159 unsigned int innerclasses; /* # of records in InnerClasses attr */ 1160 1161 method_size_info clinit; /* memory used in clinit */ 1162 method_size_info main; /* used everywhere else */ 1163 } class_size_info; 1164 1165 /* 1166 * Functions defined in libjava.so to perform string conversions. 1167 * 1168 */ 1169 1170 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str); 1171 1172 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b); 1173 1174 /* This is the function defined in libjava.so that performs class 1175 * format checks. This functions fills in size information about 1176 * the class file and returns: 1177 * 1178 * 0: good 1179 * -1: out of memory 1180 * -2: bad format 1181 * -3: unsupported version 1182 * -4: bad class name 1183 */ 1184 1185 typedef jint (*check_format_fn_t)(char *class_name, 1186 unsigned char *data, 1187 unsigned int data_size, 1188 class_size_info *class_size, 1189 char *message_buffer, 1190 jint buffer_length, 1191 jboolean measure_only, 1192 jboolean check_relaxed); 1193 1194 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \ 1195 JVM_ACC_FINAL | \ 1196 JVM_ACC_SUPER | \ 1197 JVM_ACC_INTERFACE | \ 1198 JVM_ACC_ABSTRACT | \ 1199 JVM_ACC_ANNOTATION | \ 1200 JVM_ACC_ENUM | \ 1201 JVM_ACC_SYNTHETIC) 1202 1203 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \ 1204 JVM_ACC_PRIVATE | \ 1205 JVM_ACC_PROTECTED | \ 1206 JVM_ACC_STATIC | \ 1207 JVM_ACC_FINAL | \ 1208 JVM_ACC_VOLATILE | \ 1209 JVM_ACC_TRANSIENT | \ 1210 JVM_ACC_ENUM | \ 1211 JVM_ACC_SYNTHETIC) 1212 1213 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \ 1214 JVM_ACC_PRIVATE | \ 1215 JVM_ACC_PROTECTED | \ 1216 JVM_ACC_STATIC | \ 1217 JVM_ACC_FINAL | \ 1218 JVM_ACC_SYNCHRONIZED | \ 1219 JVM_ACC_BRIDGE | \ 1220 JVM_ACC_VARARGS | \ 1221 JVM_ACC_NATIVE | \ 1222 JVM_ACC_ABSTRACT | \ 1223 JVM_ACC_STRICT | \ 1224 JVM_ACC_SYNTHETIC) 1225 1226 /* 1227 * This is the function defined in libjava.so to perform path 1228 * canonicalization. VM call this function before opening jar files 1229 * to load system classes. 1230 * 1231 */ 1232 1233 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len); 1234 1235 /************************************************************************* 1236 PART 3: I/O and Network Support 1237 ************************************************************************/ 1238 1239 /* Note that the JVM IO functions are expected to return JVM_IO_ERR 1240 * when there is any kind of error. The caller can then use the 1241 * platform specific support (e.g., errno) to get the detailed 1242 * error info. The JVM_GetLastErrorString procedure may also be used 1243 * to obtain a descriptive error string. 1244 */ 1245 #define JVM_IO_ERR (-1) 1246 1247 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO 1248 * operation has been disrupted by Thread.interrupt. There are a 1249 * number of technical difficulties related to interruptible IO that 1250 * need to be solved. For example, most existing programs do not handle 1251 * InterruptedIOExceptions specially, they simply treat those as any 1252 * IOExceptions, which typically indicate fatal errors. 1253 * 1254 * There are also two modes of operation for interruptible IO. In the 1255 * resumption mode, an interrupted IO operation is guaranteed not to 1256 * have any side-effects, and can be restarted. In the termination mode, 1257 * an interrupted IO operation corrupts the underlying IO stream, so 1258 * that the only reasonable operation on an interrupted stream is to 1259 * close that stream. The resumption mode seems to be impossible to 1260 * implement on Win32 and Solaris. Implementing the termination mode is 1261 * easier, but it's not clear that's the right semantics. 1262 * 1263 * Interruptible IO is not supported on Win32.It can be enabled/disabled 1264 * using a compile-time flag on Solaris. Third-party JVM ports do not 1265 * need to implement interruptible IO. 1266 */ 1267 #define JVM_IO_INTR (-2) 1268 1269 /* Write a string into the given buffer, in the platform's local encoding, 1270 * that describes the most recent system-level error to occur in this thread. 1271 * Return the length of the string or zero if no error occurred. 1272 */ 1273 JNIEXPORT jint JNICALL 1274 JVM_GetLastErrorString(char *buf, int len); 1275 1276 /* 1277 * Convert a pathname into native format. This function does syntactic 1278 * cleanup, such as removing redundant separator characters. It modifies 1279 * the given pathname string in place. 1280 */ 1281 JNIEXPORT char * JNICALL 1282 JVM_NativePath(char *); 1283 1284 /* 1285 * JVM I/O error codes 1286 */ 1287 #define JVM_EEXIST -100 1288 1289 /* 1290 * Open a file descriptor. This function returns a negative error code 1291 * on error, and a non-negative integer that is the file descriptor on 1292 * success. 1293 */ 1294 JNIEXPORT jint JNICALL 1295 JVM_Open(const char *fname, jint flags, jint mode); 1296 1297 /* 1298 * Close a file descriptor. This function returns -1 on error, and 0 1299 * on success. 1300 * 1301 * fd the file descriptor to close. 1302 */ 1303 JNIEXPORT jint JNICALL 1304 JVM_Close(jint fd); 1305 1306 /* 1307 * Read data from a file decriptor into a char array. 1308 * 1309 * fd the file descriptor to read from. 1310 * buf the buffer where to put the read data. 1311 * nbytes the number of bytes to read. 1312 * 1313 * This function returns -1 on error, and 0 on success. 1314 */ 1315 JNIEXPORT jint JNICALL 1316 JVM_Read(jint fd, char *buf, jint nbytes); 1317 1318 /* 1319 * Write data from a char array to a file decriptor. 1320 * 1321 * fd the file descriptor to read from. 1322 * buf the buffer from which to fetch the data. 1323 * nbytes the number of bytes to write. 1324 * 1325 * This function returns -1 on error, and 0 on success. 1326 */ 1327 JNIEXPORT jint JNICALL 1328 JVM_Write(jint fd, char *buf, jint nbytes); 1329 1330 /* 1331 * Returns the number of bytes available for reading from a given file 1332 * descriptor 1333 */ 1334 JNIEXPORT jint JNICALL 1335 JVM_Available(jint fd, jlong *pbytes); 1336 1337 /* 1338 * Move the file descriptor pointer from whence by offset. 1339 * 1340 * fd the file descriptor to move. 1341 * offset the number of bytes to move it by. 1342 * whence the start from where to move it. 1343 * 1344 * This function returns the resulting pointer location. 1345 */ 1346 JNIEXPORT jlong JNICALL 1347 JVM_Lseek(jint fd, jlong offset, jint whence); 1348 1349 /* 1350 * Set the length of the file associated with the given descriptor to the given 1351 * length. If the new length is longer than the current length then the file 1352 * is extended; the contents of the extended portion are not defined. The 1353 * value of the file pointer is undefined after this procedure returns. 1354 */ 1355 JNIEXPORT jint JNICALL 1356 JVM_SetLength(jint fd, jlong length); 1357 1358 /* 1359 * Synchronize the file descriptor's in memory state with that of the 1360 * physical device. Return of -1 is an error, 0 is OK. 1361 */ 1362 JNIEXPORT jint JNICALL 1363 JVM_Sync(jint fd); 1364 1365 /* 1366 * Networking library support 1367 */ 1368 1369 JNIEXPORT jint JNICALL 1370 JVM_InitializeSocketLibrary(void); 1371 1372 struct sockaddr; 1373 1374 JNIEXPORT jint JNICALL 1375 JVM_Socket(jint domain, jint type, jint protocol); 1376 1377 JNIEXPORT jint JNICALL 1378 JVM_SocketClose(jint fd); 1379 1380 JNIEXPORT jint JNICALL 1381 JVM_SocketShutdown(jint fd, jint howto); 1382 1383 JNIEXPORT jint JNICALL 1384 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags); 1385 1386 JNIEXPORT jint JNICALL 1387 JVM_Send(jint fd, char *buf, jint nBytes, jint flags); 1388 1389 JNIEXPORT jint JNICALL 1390 JVM_Timeout(int fd, long timeout); 1391 1392 JNIEXPORT jint JNICALL 1393 JVM_Listen(jint fd, jint count); 1394 1395 JNIEXPORT jint JNICALL 1396 JVM_Connect(jint fd, struct sockaddr *him, jint len); 1397 1398 JNIEXPORT jint JNICALL 1399 JVM_Bind(jint fd, struct sockaddr *him, jint len); 1400 1401 JNIEXPORT jint JNICALL 1402 JVM_Accept(jint fd, struct sockaddr *him, jint *len); 1403 1404 JNIEXPORT jint JNICALL 1405 JVM_RecvFrom(jint fd, char *buf, int nBytes, 1406 int flags, struct sockaddr *from, int *fromlen); 1407 1408 JNIEXPORT jint JNICALL 1409 JVM_SendTo(jint fd, char *buf, int len, 1410 int flags, struct sockaddr *to, int tolen); 1411 1412 JNIEXPORT jint JNICALL 1413 JVM_SocketAvailable(jint fd, jint *result); 1414 1415 1416 JNIEXPORT jint JNICALL 1417 JVM_GetSockName(jint fd, struct sockaddr *him, int *len); 1418 1419 JNIEXPORT jint JNICALL 1420 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen); 1421 1422 JNIEXPORT jint JNICALL 1423 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen); 1424 1425 JNIEXPORT int JNICALL 1426 JVM_GetHostName(char* name, int namelen); 1427 1428 /* 1429 * The standard printing functions supported by the Java VM. (Should they 1430 * be renamed to JVM_* in the future? 1431 */ 1432 1433 /* 1434 * BE CAREFUL! The following functions do not implement the 1435 * full feature set of standard C printf formats. 1436 */ 1437 JNIEXPORT int 1438 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args); 1439 1440 JNIEXPORT int 1441 jio_snprintf(char *str, size_t count, const char *fmt, ...); 1442 1443 JNIEXPORT int 1444 jio_fprintf(FILE *, const char *fmt, ...); 1445 1446 JNIEXPORT int 1447 jio_vfprintf(FILE *, const char *fmt, va_list args); 1448 1449 1450 JNIEXPORT void * JNICALL 1451 JVM_RawMonitorCreate(void); 1452 1453 JNIEXPORT void JNICALL 1454 JVM_RawMonitorDestroy(void *mon); 1455 1456 JNIEXPORT jint JNICALL 1457 JVM_RawMonitorEnter(void *mon); 1458 1459 JNIEXPORT void JNICALL 1460 JVM_RawMonitorExit(void *mon); 1461 1462 /* 1463 * java.lang.reflect.Method 1464 */ 1465 JNIEXPORT jobject JNICALL 1466 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0); 1467 1468 /* 1469 * java.lang.reflect.Constructor 1470 */ 1471 JNIEXPORT jobject JNICALL 1472 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0); 1473 1474 /* 1475 * java.lang.management support 1476 */ 1477 JNIEXPORT void* JNICALL 1478 JVM_GetManagement(jint version); 1479 1480 /* 1481 * com.sun.tools.attach.VirtualMachine support 1482 * 1483 * Initialize the agent properties with the properties maintained in the VM. 1484 */ 1485 JNIEXPORT jobject JNICALL 1486 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props); 1487 1488 /* Generics reflection support. 1489 * 1490 * Returns information about the given class's EnclosingMethod 1491 * attribute, if present, or null if the class had no enclosing 1492 * method. 1493 * 1494 * If non-null, the returned array contains three elements. Element 0 1495 * is the java.lang.Class of which the enclosing method is a member, 1496 * and elements 1 and 2 are the java.lang.Strings for the enclosing 1497 * method's name and descriptor, respectively. 1498 */ 1499 JNIEXPORT jobjectArray JNICALL 1500 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass); 1501 1502 /* 1503 * Java thread state support 1504 */ 1505 enum { 1506 JAVA_THREAD_STATE_NEW = 0, 1507 JAVA_THREAD_STATE_RUNNABLE = 1, 1508 JAVA_THREAD_STATE_BLOCKED = 2, 1509 JAVA_THREAD_STATE_WAITING = 3, 1510 JAVA_THREAD_STATE_TIMED_WAITING = 4, 1511 JAVA_THREAD_STATE_TERMINATED = 5, 1512 JAVA_THREAD_STATE_COUNT = 6 1513 }; 1514 1515 /* 1516 * Returns an array of the threadStatus values representing the 1517 * given Java thread state. Returns NULL if the VM version is 1518 * incompatible with the JDK or doesn't support the given 1519 * Java thread state. 1520 */ 1521 JNIEXPORT jintArray JNICALL 1522 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState); 1523 1524 /* 1525 * Returns an array of the substate names representing the 1526 * given Java thread state. Returns NULL if the VM version is 1527 * incompatible with the JDK or the VM doesn't support 1528 * the given Java thread state. 1529 * values must be the jintArray returned from JVM_GetThreadStateValues 1530 * and javaThreadState. 1531 */ 1532 JNIEXPORT jobjectArray JNICALL 1533 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values); 1534 1535 /* ========================================================================= 1536 * The following defines a private JVM interface that the JDK can query 1537 * for the JVM version and capabilities. sun.misc.Version defines 1538 * the methods for getting the VM version and its capabilities. 1539 * 1540 * When a new bit is added, the following should be updated to provide 1541 * access to the new capability: 1542 * HS: JVM_GetVersionInfo and Abstract_VM_Version class 1543 * SDK: Version class 1544 * 1545 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for 1546 * JVM to query for the JDK version and capabilities. 1547 * 1548 * When a new bit is added, the following should be updated to provide 1549 * access to the new capability: 1550 * HS: JDK_Version class 1551 * SDK: JDK_GetVersionInfo0 1552 * 1553 * ========================================================================== 1554 */ 1555 typedef struct { 1556 /* VM version string: follows the JDK release version naming convention */ 1557 unsigned int jvm_version; /* <major_ver>.<minor_ver>.<micro_ver>[-<identifier>][-<debug_target>][-b<nn>] */ 1558 unsigned int update_version : 8; 1559 unsigned int special_update_version : 8; 1560 unsigned int reserved1 : 16; 1561 unsigned int reserved2; 1562 1563 /* The following bits represents JVM supports that JDK has dependency on. 1564 * JDK can use these bits to determine which JVM version 1565 * and support it has to maintain runtime compatibility. 1566 * 1567 * When a new bit is added in a minor or update release, make sure 1568 * the new bit is also added in the main/baseline. 1569 */ 1570 unsigned int is_attachable : 1; 1571 unsigned int : 31; 1572 unsigned int : 32; 1573 unsigned int : 32; 1574 } jvm_version_info; 1575 1576 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1577 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1578 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1579 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF)) 1580 1581 JNIEXPORT void JNICALL 1582 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size); 1583 1584 typedef struct { 1585 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx 1586 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */ 1587 /* and build number (xx) */ 1588 unsigned int update_version : 8; /* Update release version (uu) */ 1589 unsigned int special_update_version : 8; /* Special update release version (c)*/ 1590 unsigned int reserved1 : 16; 1591 unsigned int reserved2; 1592 1593 /* The following bits represents new JDK supports that VM has dependency on. 1594 * VM implementation can use these bits to determine which JDK version 1595 * and support it has to maintain runtime compatibility. 1596 * 1597 * When a new bit is added in a minor or update release, make sure 1598 * the new bit is also added in the main/baseline. 1599 */ 1600 unsigned int thread_park_blocker : 1; 1601 unsigned int post_vm_init_hook_enabled : 1; 1602 unsigned int pending_list_uses_discovered_field : 1; 1603 unsigned int : 29; 1604 unsigned int : 32; 1605 unsigned int : 32; 1606 } jdk_version_info; 1607 1608 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24) 1609 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16) 1610 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8) 1611 1612 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN) 1613 * It will be zero for internal builds. 1614 */ 1615 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF)) 1616 1617 /* 1618 * This is the function JDK_GetVersionInfo0 defined in libjava.so 1619 * that is dynamically looked up by JVM. 1620 */ 1621 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size); 1622 1623 /* 1624 * This structure is used by the launcher to get the default thread 1625 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a 1626 * version of 1.1. As it is not supported otherwise, it has been removed 1627 * from jni.h 1628 */ 1629 typedef struct JDK1_1InitArgs { 1630 jint version; 1631 1632 char **properties; 1633 jint checkSource; 1634 jint nativeStackSize; 1635 jint javaStackSize; 1636 jint minHeapSize; 1637 jint maxHeapSize; 1638 jint verifyMode; 1639 char *classpath; 1640 1641 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args); 1642 void (JNICALL *exit)(jint code); 1643 void (JNICALL *abort)(void); 1644 1645 jint enableClassGC; 1646 jint enableVerboseGC; 1647 jint disableAsyncGC; 1648 jint verbose; 1649 jboolean debugging; 1650 jint debugPort; 1651 } JDK1_1InitArgs; 1652 1653 #ifdef __cplusplus 1654 } /* extern "C" */ 1655 #endif /* __cplusplus */ 1656 1657 #endif /* !_JAVASOFT_JVM_H_ */ 1658 1659 #endif // SHARE_VM_PRIMS_JVM_H