1 /*
2 * Copyright (c) 1997, 2024, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #ifndef _JAVASOFT_JVM_H_
27 #define _JAVASOFT_JVM_H_
28
29 #include <sys/stat.h>
30
31 #include "jni.h"
32 #include "jvm_md.h"
33 #include "jvm_constants.h"
34 #include "jvm_io.h"
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 /*
41 * This file contains additional functions exported from the VM.
42 * These functions are complementary to the standard JNI support.
43 * There are three parts to this file:
44 *
45 * First, this file contains the VM-related functions needed by native
46 * libraries in the standard Java API. For example, the java.lang.Object
47 * class needs VM-level functions that wait for and notify monitors.
48 *
49 * Second, (included from jvm_constants.h) constant definitions
50 * needed by the byte code verifier and class file format checker.
51 * These definitions allow the verifier and format checker to be written
52 * in a VM-independent way.
53 *
54 * Third, this file contains various I/O and network operations needed
55 * by the standard Java I/O and network APIs. A part of these APIs,
56 * namely the jio_xxxprintf functions, are included from jvm_io.h.
57 */
58
59
60 /*************************************************************************
61 PART 1: Functions for Native Libraries
62 ************************************************************************/
63 /*
64 * java.lang.Object
65 */
66 JNIEXPORT jint JNICALL
67 JVM_IHashCode(JNIEnv *env, jobject obj);
68
69 JNIEXPORT void JNICALL
70 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
71
72 JNIEXPORT void JNICALL
73 JVM_MonitorNotify(JNIEnv *env, jobject obj);
74
75 JNIEXPORT void JNICALL
76 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
77
78 JNIEXPORT jobject JNICALL
79 JVM_Clone(JNIEnv *env, jobject obj);
80
81 /*
82 * java.lang.String
83 */
84 JNIEXPORT jstring JNICALL
85 JVM_InternString(JNIEnv *env, jstring str);
86
87 /*
88 * java.lang.System
89 */
90 JNIEXPORT jboolean JNICALL
91 JVM_AOTIsTraining(JNIEnv *env);
92
93 JNIEXPORT void JNICALL
94 JVM_AOTEndTraining(JNIEnv *env);
95
96 JNIEXPORT jlong JNICALL
97 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
98
99 JNIEXPORT jlong JNICALL
100 JVM_NanoTime(JNIEnv *env, jclass ignored);
101
102 JNIEXPORT jlong JNICALL
103 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);
104
105 JNIEXPORT void JNICALL
106 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
107 jobject dst, jint dst_pos, jint length);
108
109 /*
110 * Return an array of all properties as alternating name and value pairs.
111 */
112 JNIEXPORT jobjectArray JNICALL
113 JVM_GetProperties(JNIEnv *env);
114
115 /*
116 * java.lang.Runtime
117 */
118 JNIEXPORT void JNICALL
119 JVM_BeforeHalt();
120
121 JNIEXPORT void JNICALL
122 JVM_Halt(jint code);
123
124 JNIEXPORT void JNICALL
125 JVM_GC(void);
126
127 /* Returns the number of real-time milliseconds that have elapsed since the
128 * least-recently-inspected heap object was last inspected by the garbage
129 * collector.
130 *
131 * For simple stop-the-world collectors this value is just the time
132 * since the most recent collection. For generational collectors it is the
133 * time since the oldest generation was most recently collected. Other
134 * collectors are free to return a pessimistic estimate of the elapsed time, or
135 * simply the time since the last full collection was performed.
136 *
137 * Note that in the presence of reference objects, a given object that is no
138 * longer strongly reachable may have to be inspected multiple times before it
139 * can be reclaimed.
140 */
141 JNIEXPORT jlong JNICALL
142 JVM_MaxObjectInspectionAge(void);
143
144 JNIEXPORT jlong JNICALL
145 JVM_TotalMemory(void);
146
147 JNIEXPORT jlong JNICALL
148 JVM_FreeMemory(void);
149
150 JNIEXPORT jlong JNICALL
151 JVM_MaxMemory(void);
152
153 JNIEXPORT jint JNICALL
154 JVM_ActiveProcessorCount(void);
155
156 JNIEXPORT jboolean JNICALL
157 JVM_IsUseContainerSupport(void);
158
159 JNIEXPORT jboolean JNICALL
160 JVM_IsContainerized(void);
161
162 JNIEXPORT void * JNICALL
163 JVM_LoadZipLibrary();
164
165 JNIEXPORT void * JNICALL
166 JVM_LoadLibrary(const char *name, jboolean throwException);
167
168 JNIEXPORT void JNICALL
169 JVM_UnloadLibrary(void * handle);
170
171 JNIEXPORT void * JNICALL
172 JVM_FindLibraryEntry(void *handle, const char *name);
173
174 JNIEXPORT jboolean JNICALL
175 JVM_IsSupportedJNIVersion(jint version);
176
177 JNIEXPORT jobjectArray JNICALL
178 JVM_GetVmArguments(JNIEnv *env);
179
180 JNIEXPORT jboolean JNICALL
181 JVM_IsPreviewEnabled(void);
182
183 JNIEXPORT jboolean JNICALL
184 JVM_IsContinuationsSupported(void);
185
186 JNIEXPORT jboolean JNICALL
187 JVM_IsForeignLinkerSupported(void);
188
189 JNIEXPORT jboolean JNICALL
190 JVM_IsStaticallyLinked(void);
191
192 JNIEXPORT void JNICALL
193 JVM_InitializeFromArchive(JNIEnv* env, jclass cls);
194
195 JNIEXPORT void JNICALL
196 JVM_RegisterLambdaProxyClassForArchiving(JNIEnv* env, jclass caller,
197 jstring interfaceMethodName,
198 jobject factoryType,
199 jobject interfaceMethodType,
200 jobject implementationMember,
201 jobject dynamicMethodType,
202 jclass lambdaProxyClass);
203
204 JNIEXPORT jclass JNICALL
205 JVM_LookupLambdaProxyClassFromArchive(JNIEnv* env, jclass caller,
206 jstring interfaceMethodName,
207 jobject factoryType,
208 jobject interfaceMethodType,
209 jobject implementationMember,
210 jobject dynamicMethodType);
211
212 JNIEXPORT jint JNICALL
213 JVM_GetCDSConfigStatus();
214
215 JNIEXPORT jlong JNICALL
216 JVM_GetRandomSeedForDumping();
217
218 JNIEXPORT void JNICALL
219 JVM_LogLambdaFormInvoker(JNIEnv* env, jstring line);
220
221 JNIEXPORT void JNICALL
222 JVM_LogDynamicProxy(JNIEnv *env, jobject loader, jstring proxy_name, jobjectArray interfaces, jint accessFlags);
223
224 JNIEXPORT void JNICALL
225 JVM_DumpClassListToFile(JNIEnv* env, jstring fileName);
226
227 JNIEXPORT void JNICALL
228 JVM_DumpDynamicArchive(JNIEnv* env, jstring archiveName);
229
230 /*
231 * java.lang.Throwable
232 */
233 JNIEXPORT void JNICALL
234 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
235
236 /*
237 * java.lang.StackTraceElement
238 */
239 JNIEXPORT void JNICALL
240 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject backtrace, jint depth);
241
242 JNIEXPORT void JNICALL
243 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
244
245 /*
246 * java.lang.NullPointerException
247 */
248
249 JNIEXPORT jstring JNICALL
250 JVM_GetExtendedNPEMessage(JNIEnv *env, jthrowable throwable);
251
252 /*
253 * java.lang.StackWalker
254 */
255 enum {
256 JVM_STACKWALK_CLASS_INFO_ONLY = 0x2,
257 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20,
258 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100
259 };
260
261 JNIEXPORT void JNICALL
262 JVM_ExpandStackFrameInfo(JNIEnv *env, jobject obj);
263
264 JNIEXPORT jobject JNICALL
265 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jint mode,
266 jint skip_frames, jobject contScope, jobject cont,
267 jint buffer_size, jint start_index, jobjectArray frames);
268
269 JNIEXPORT jint JNICALL
270 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jint mode, jlong anchor,
271 jint last_batch_count, jint buffer_size, jint start_index,
272 jobjectArray frames);
273
274 JNIEXPORT void JNICALL
275 JVM_SetStackWalkContinuation(JNIEnv *env, jobject stackStream, jlong anchor, jobjectArray frames, jobject cont);
276
277 /*
278 * java.lang.Thread
279 */
280 JNIEXPORT void JNICALL
281 JVM_StartThread(JNIEnv *env, jobject thread);
282
283 JNIEXPORT void JNICALL
284 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
285
286 JNIEXPORT void JNICALL
287 JVM_Yield(JNIEnv *env, jclass threadClass);
288
289 JNIEXPORT void JNICALL
290 JVM_SleepNanos(JNIEnv *env, jclass threadClass, jlong nanos);
291
292 JNIEXPORT jobject JNICALL
293 JVM_CurrentCarrierThread(JNIEnv *env, jclass threadClass);
294
295 JNIEXPORT jobject JNICALL
296 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
297
298 JNIEXPORT void JNICALL
299 JVM_SetCurrentThread(JNIEnv *env, jobject thisThread, jobject theThread);
300
301 JNIEXPORT void JNICALL
302 JVM_Interrupt(JNIEnv *env, jobject thread);
303
304 JNIEXPORT jboolean JNICALL
305 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
306
307 JNIEXPORT jobject JNICALL
308 JVM_GetStackTrace(JNIEnv *env, jobject thread);
309
310 JNIEXPORT jobjectArray JNICALL
311 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
312
313 JNIEXPORT void JNICALL
314 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
315
316 /* getStackTrace() and getAllStackTraces() method */
317 JNIEXPORT jobjectArray JNICALL
318 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
319
320 JNIEXPORT jobject JNICALL
321 JVM_ScopedValueCache(JNIEnv *env, jclass threadClass);
322
323 JNIEXPORT void JNICALL
324 JVM_SetScopedValueCache(JNIEnv *env, jclass threadClass, jobject theCache);
325
326 JNIEXPORT jobject JNICALL
327 JVM_FindScopedValueBindings(JNIEnv *env, jclass threadClass);
328
329 JNIEXPORT jlong JNICALL
330 JVM_GetNextThreadIdOffset(JNIEnv *env, jclass threadClass);
331
332 /*
333 * jdk.internal.vm.Continuation
334 */
335 JNIEXPORT void JNICALL
336 JVM_RegisterContinuationMethods(JNIEnv *env, jclass cls);
337
338 /*
339 * java.lang.SecurityManager
340 */
341 JNIEXPORT jobjectArray JNICALL
342 JVM_GetClassContext(JNIEnv *env);
343
344 /*
345 * java.lang.Package
346 */
347 JNIEXPORT jstring JNICALL
348 JVM_GetSystemPackage(JNIEnv *env, jstring name);
349
350 JNIEXPORT jobjectArray JNICALL
351 JVM_GetSystemPackages(JNIEnv *env);
352
353 /*
354 * java.lang.ref.Reference
355 */
356 JNIEXPORT jobject JNICALL
357 JVM_GetAndClearReferencePendingList(JNIEnv *env);
358
359 JNIEXPORT jboolean JNICALL
360 JVM_HasReferencePendingList(JNIEnv *env);
361
362 JNIEXPORT void JNICALL
363 JVM_WaitForReferencePendingList(JNIEnv *env);
364
365 JNIEXPORT jboolean JNICALL
366 JVM_ReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
367
368 JNIEXPORT void JNICALL
369 JVM_ReferenceClear(JNIEnv *env, jobject ref);
370
371 /*
372 * java.lang.ref.PhantomReference
373 */
374 JNIEXPORT jboolean JNICALL
375 JVM_PhantomReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
376
377 /*
378 * java.io.ObjectInputStream
379 */
380 JNIEXPORT jobject JNICALL
381 JVM_LatestUserDefinedLoader(JNIEnv *env);
382
383 /*
384 * java.lang.reflect.Array
385 */
386 JNIEXPORT jint JNICALL
387 JVM_GetArrayLength(JNIEnv *env, jobject arr);
388
389 JNIEXPORT jobject JNICALL
390 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
391
392 JNIEXPORT jvalue JNICALL
393 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
394
395 JNIEXPORT void JNICALL
396 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
397
398 JNIEXPORT void JNICALL
399 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
400 unsigned char vCode);
401
402 JNIEXPORT jobject JNICALL
403 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
404
405 JNIEXPORT jobject JNICALL
406 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
407
408
409 /*
410 * Returns the immediate caller class of the native method invoking
411 * JVM_GetCallerClass. The Method.invoke and other frames due to
412 * reflection machinery are skipped.
413 *
414 * The caller is expected to be marked with
415 * jdk.internal.reflect.CallerSensitive. The JVM will throw an
416 * error if it is not marked properly.
417 */
418 JNIEXPORT jclass JNICALL
419 JVM_GetCallerClass(JNIEnv *env);
420
421
422 /*
423 * Find primitive classes
424 * utf: class name
425 */
426 JNIEXPORT jclass JNICALL
427 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
428
429
430 /*
431 * Find a class from a boot class loader. Returns null if class not found.
432 */
433 JNIEXPORT jclass JNICALL
434 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
435
436 /*
437 * Find a class from a given class loader. Throws ClassNotFoundException.
438 * name: name of class
439 * init: whether initialization is done
440 * loader: class loader to look up the class. This may not be the same as the caller's
441 * class loader.
442 * caller: initiating class. The initiating class may be null when a security
443 * manager is not installed.
444 */
445 JNIEXPORT jclass JNICALL
446 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
447 jobject loader, jclass caller);
448
449 /*
450 * Find a class from a given class.
451 */
452 JNIEXPORT jclass JNICALL
453 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
454 jclass from);
455
456 /* Find a loaded class cached by the VM */
457 JNIEXPORT jclass JNICALL
458 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
459
460 /* Define a class */
461 JNIEXPORT jclass JNICALL
462 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
463 jsize len, jobject pd);
464
465 /* Define a class with a source (added in JDK1.5) */
466 JNIEXPORT jclass JNICALL
467 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
468 const jbyte *buf, jsize len, jobject pd,
469 const char *source);
470
471 /*
472 * Define a class with the specified lookup class.
473 * lookup: Lookup class
474 * name: the name of the class
475 * buf: class bytes
476 * len: length of class bytes
477 * pd: protection domain
478 * init: initialize the class
479 * flags: properties of the class
480 * classData: private static pre-initialized field; may be null
481 */
482 JNIEXPORT jclass JNICALL
483 JVM_LookupDefineClass(JNIEnv *env, jclass lookup, const char *name, const jbyte *buf,
484 jsize len, jobject pd, jboolean init, int flags, jobject classData);
485
486 /*
487 * Module support functions
488 */
489
490 /*
491 * Define a module with the specified packages and bind the module to the
492 * given class loader.
493 * module: module to define
494 * is_open: specifies if module is open (currently ignored)
495 * version: the module version
496 * location: the module location
497 * packages: array of packages in the module
498 */
499 JNIEXPORT void JNICALL
500 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
501 jstring location, jobjectArray packages);
502
503 /*
504 * Set the boot loader's unnamed module.
505 * module: boot loader's unnamed module
506 */
507 JNIEXPORT void JNICALL
508 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
509
510 /*
511 * Do a qualified export of a package.
512 * from_module: module containing the package to export
513 * package: name of the package to export
514 * to_module: module to export the package to
515 */
516 JNIEXPORT void JNICALL
517 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
518
519 /*
520 * Do an export of a package to all unnamed modules.
521 * from_module: module containing the package to export
522 * package: name of the package to export to all unnamed modules
523 */
524 JNIEXPORT void JNICALL
525 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
526
527 /*
528 * Do an unqualified export of a package.
529 * from_module: module containing the package to export
530 * package: name of the package to export
531 */
532 JNIEXPORT void JNICALL
533 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
534
535 /*
536 * Add a module to the list of modules that a given module can read.
537 * from_module: module requesting read access
538 * source_module: module that from_module wants to read
539 */
540 JNIEXPORT void JNICALL
541 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
542
543 /*
544 * Define all modules that have been stored in the CDS archived heap.
545 * platform_loader: the built-in platform class loader
546 * system_loader: the built-in system class loader
547 */
548 JNIEXPORT void JNICALL
549 JVM_DefineArchivedModules(JNIEnv *env, jobject platform_loader, jobject system_loader);
550
551 /*
552 * Reflection support functions
553 */
554
555 JNIEXPORT jstring JNICALL
556 JVM_InitClassName(JNIEnv *env, jclass cls);
557
558 JNIEXPORT jobjectArray JNICALL
559 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
560
561 JNIEXPORT jboolean JNICALL
562 JVM_IsInterface(JNIEnv *env, jclass cls);
563
564 JNIEXPORT jobject JNICALL
565 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
566
567 JNIEXPORT jboolean JNICALL
568 JVM_IsArrayClass(JNIEnv *env, jclass cls);
569
570 JNIEXPORT jboolean JNICALL
571 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
572
573 JNIEXPORT jboolean JNICALL
574 JVM_IsHiddenClass(JNIEnv *env, jclass cls);
575
576 JNIEXPORT jint JNICALL
577 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
578
579 JNIEXPORT jobjectArray JNICALL
580 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
581
582 JNIEXPORT jclass JNICALL
583 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
584
585 JNIEXPORT jstring JNICALL
586 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
587
588 /* Generics support (JDK 1.5) */
589 JNIEXPORT jstring JNICALL
590 JVM_GetClassSignature(JNIEnv *env, jclass cls);
591
592 /* Annotations support (JDK 1.5) */
593 JNIEXPORT jbyteArray JNICALL
594 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
595
596 /* Type use annotations support (JDK 1.8) */
597
598 JNIEXPORT jbyteArray JNICALL
599 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
600
601 JNIEXPORT jbyteArray JNICALL
602 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
603
604 JNIEXPORT jbyteArray JNICALL
605 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
606
607 /*
608 * New (JDK 1.4) reflection implementation
609 */
610
611 JNIEXPORT jobjectArray JNICALL
612 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
613
614 JNIEXPORT jobjectArray JNICALL
615 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
616
617 JNIEXPORT jobjectArray JNICALL
618 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
619
620
621 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
622 This returns the access flags for the class as specified in the
623 class file rather than searching the InnerClasses attribute (if
624 present) to find the source-level access flags. Only the values of
625 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
626 valid. */
627 JNIEXPORT jint JNICALL
628 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
629
630 /* Nestmates - since JDK 11 */
631
632 JNIEXPORT jboolean JNICALL
633 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member);
634
635 JNIEXPORT jclass JNICALL
636 JVM_GetNestHost(JNIEnv *env, jclass current);
637
638 JNIEXPORT jobjectArray JNICALL
639 JVM_GetNestMembers(JNIEnv *env, jclass current);
640
641 /* Records - since JDK 16 */
642
643 JNIEXPORT jboolean JNICALL
644 JVM_IsRecord(JNIEnv *env, jclass cls);
645
646 JNIEXPORT jobjectArray JNICALL
647 JVM_GetRecordComponents(JNIEnv *env, jclass ofClass);
648
649 /* Sealed classes - since JDK 17 */
650
651 JNIEXPORT jobjectArray JNICALL
652 JVM_GetPermittedSubclasses(JNIEnv *env, jclass current);
653
654 /* The following two reflection routines are still needed due to startup time issues */
655 /*
656 * java.lang.reflect.Method
657 */
658 JNIEXPORT jobject JNICALL
659 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
660
661 /*
662 * java.lang.reflect.Constructor
663 */
664 JNIEXPORT jobject JNICALL
665 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
666
667 /*
668 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
669 */
670
671 JNIEXPORT jobject JNICALL
672 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
673
674 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
675 (JNIEnv *env, jobject unused, jobject jcpool);
676
677 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
678 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
679
680 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
681 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
682
683 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
684 (JNIEnv *env, jobject obj, jobject unused, jint index);
685
686 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
687 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
688
689 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
690 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
691
692 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
693 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
694
695 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
696 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
697
698 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
699 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
700
701 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
702 (JNIEnv *env, jobject obj, jobject unused, jint index);
703
704 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
705 (JNIEnv *env, jobject obj, jobject unused, jint index);
706
707 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
708 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
709
710 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
711 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
712
713 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
714 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
715
716 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
717 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
718
719 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
720 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
721
722 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
723 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
724
725 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
726 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
727
728 /*
729 * Parameter reflection
730 */
731
732 JNIEXPORT jobjectArray JNICALL
733 JVM_GetMethodParameters(JNIEnv *env, jobject method);
734
735 /*
736 * Ensure that code doing a stackwalk and using javaVFrame::locals() to
737 * get the value will see a materialized value and not a scalar-replaced
738 * null value.
739 */
740 #define JVM_EnsureMaterializedForStackWalk(env, value) \
741 do {} while(0) // Nothing to do. The fact that the value escaped
742 // through a native method is enough.
743 JNIEXPORT void JNICALL
744 JVM_EnsureMaterializedForStackWalk_func(JNIEnv* env, jobject vthread, jobject value);
745
746 /*
747 * Signal support, used to implement the shutdown sequence. Every VM must
748 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
749 * (^C) and the latter for external termination (kill, system shutdown, etc.).
750 * Other platform-dependent signal values may also be supported.
751 */
752
753 JNIEXPORT void * JNICALL
754 JVM_RegisterSignal(jint sig, void *handler);
755
756 JNIEXPORT jboolean JNICALL
757 JVM_RaiseSignal(jint sig);
758
759 JNIEXPORT jint JNICALL
760 JVM_FindSignal(const char *name);
761
762 /*
763 * Retrieve the assertion directives for the specified class.
764 */
765 JNIEXPORT jboolean JNICALL
766 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
767
768 /*
769 * Retrieve the assertion directives from the VM.
770 */
771 JNIEXPORT jobject JNICALL
772 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
773
774 /*
775 * java.lang.ref.Finalizer
776 */
777 JNIEXPORT void JNICALL
778 JVM_ReportFinalizationComplete(JNIEnv *env, jobject finalizee);
779
780 JNIEXPORT jboolean JNICALL
781 JVM_IsFinalizationEnabled(JNIEnv *env);
782
783 /*************************************************************************
784 PART 2: Support for the Verifier and Class File Format Checker
785 ************************************************************************/
786 /*
787 * Return the class name in UTF format. The result is valid
788 * until JVM_ReleaseUTf is called.
789 *
790 * The caller must treat the string as a constant and not modify it
791 * in any way.
792 */
793 JNIEXPORT const char * JNICALL
794 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
795
796 /*
797 * Returns the constant pool types in the buffer provided by "types."
798 */
799 JNIEXPORT void JNICALL
800 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
801
802 /*
803 * Returns the number of Constant Pool entries.
804 */
805 JNIEXPORT jint JNICALL
806 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
807
808 /*
809 * Returns the number of *declared* fields or methods.
810 */
811 JNIEXPORT jint JNICALL
812 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
813
814 JNIEXPORT jint JNICALL
815 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
816
817 /*
818 * Returns the CP indexes of exceptions raised by a given method.
819 * Places the result in the given buffer.
820 *
821 * The method is identified by method_index.
822 */
823 JNIEXPORT void JNICALL
824 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
825 unsigned short *exceptions);
826 /*
827 * Returns the number of exceptions raised by a given method.
828 * The method is identified by method_index.
829 */
830 JNIEXPORT jint JNICALL
831 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
832
833 /*
834 * Returns the byte code sequence of a given method.
835 * Places the result in the given buffer.
836 *
837 * The method is identified by method_index.
838 */
839 JNIEXPORT void JNICALL
840 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
841 unsigned char *code);
842
843 /*
844 * Returns the length of the byte code sequence of a given method.
845 * The method is identified by method_index.
846 */
847 JNIEXPORT jint JNICALL
848 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
849
850 /*
851 * A structure used to a capture exception table entry in a Java method.
852 */
853 typedef struct {
854 jint start_pc;
855 jint end_pc;
856 jint handler_pc;
857 jint catchType;
858 } JVM_ExceptionTableEntryType;
859
860 /*
861 * Returns the exception table entry at entry_index of a given method.
862 * Places the result in the given buffer.
863 *
864 * The method is identified by method_index.
865 */
866 JNIEXPORT void JNICALL
867 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
868 jint entry_index,
869 JVM_ExceptionTableEntryType *entry);
870
871 /*
872 * Returns the length of the exception table of a given method.
873 * The method is identified by method_index.
874 */
875 JNIEXPORT jint JNICALL
876 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
877
878 /*
879 * Returns the modifiers of a given field.
880 * The field is identified by field_index.
881 */
882 JNIEXPORT jint JNICALL
883 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
884
885 /*
886 * Returns the modifiers of a given method.
887 * The method is identified by method_index.
888 */
889 JNIEXPORT jint JNICALL
890 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
891
892 /*
893 * Returns the number of local variables of a given method.
894 * The method is identified by method_index.
895 */
896 JNIEXPORT jint JNICALL
897 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
898
899 /*
900 * Returns the number of arguments (including this pointer) of a given method.
901 * The method is identified by method_index.
902 */
903 JNIEXPORT jint JNICALL
904 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
905
906 /*
907 * Returns the maximum amount of stack (in words) used by a given method.
908 * The method is identified by method_index.
909 */
910 JNIEXPORT jint JNICALL
911 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
912
913 /*
914 * Is a given method a constructor.
915 * The method is identified by method_index.
916 */
917 JNIEXPORT jboolean JNICALL
918 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
919
920 /*
921 * Is the given method generated by the VM.
922 * The method is identified by method_index.
923 */
924 JNIEXPORT jboolean JNICALL
925 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
926
927 /*
928 * Returns the name of a given method in UTF format.
929 * The result remains valid until JVM_ReleaseUTF is called.
930 *
931 * The caller must treat the string as a constant and not modify it
932 * in any way.
933 */
934 JNIEXPORT const char * JNICALL
935 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
936
937 /*
938 * Returns the signature of a given method in UTF format.
939 * The result remains valid until JVM_ReleaseUTF is called.
940 *
941 * The caller must treat the string as a constant and not modify it
942 * in any way.
943 */
944 JNIEXPORT const char * JNICALL
945 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
946
947 /*
948 * Returns the name of the field referred to at a given constant pool
949 * index.
950 *
951 * The result is in UTF format and remains valid until JVM_ReleaseUTF
952 * is called.
953 *
954 * The caller must treat the string as a constant and not modify it
955 * in any way.
956 */
957 JNIEXPORT const char * JNICALL
958 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
959
960 /*
961 * Returns the name of the method referred to at a given constant pool
962 * index.
963 *
964 * The result is in UTF format and remains valid until JVM_ReleaseUTF
965 * is called.
966 *
967 * The caller must treat the string as a constant and not modify it
968 * in any way.
969 */
970 JNIEXPORT const char * JNICALL
971 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
972
973 /*
974 * Returns the signature of the method referred to at a given constant pool
975 * index.
976 *
977 * The result is in UTF format and remains valid until JVM_ReleaseUTF
978 * is called.
979 *
980 * The caller must treat the string as a constant and not modify it
981 * in any way.
982 */
983 JNIEXPORT const char * JNICALL
984 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
985
986 /*
987 * Returns the signature of the field referred to at a given constant pool
988 * index.
989 *
990 * The result is in UTF format and remains valid until JVM_ReleaseUTF
991 * is called.
992 *
993 * The caller must treat the string as a constant and not modify it
994 * in any way.
995 */
996 JNIEXPORT const char * JNICALL
997 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
998
999 /*
1000 * Returns the class name referred to at a given constant pool index.
1001 *
1002 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1003 * is called.
1004 *
1005 * The caller must treat the string as a constant and not modify it
1006 * in any way.
1007 */
1008 JNIEXPORT const char * JNICALL
1009 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
1010
1011 /*
1012 * Returns the class name referred to at a given constant pool index.
1013 *
1014 * The constant pool entry must refer to a CONSTANT_Fieldref.
1015 *
1016 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1017 * is called.
1018 *
1019 * The caller must treat the string as a constant and not modify it
1020 * in any way.
1021 */
1022 JNIEXPORT const char * JNICALL
1023 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
1024
1025 /*
1026 * Returns the class name referred to at a given constant pool index.
1027 *
1028 * The constant pool entry must refer to CONSTANT_Methodref or
1029 * CONSTANT_InterfaceMethodref.
1030 *
1031 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1032 * is called.
1033 *
1034 * The caller must treat the string as a constant and not modify it
1035 * in any way.
1036 */
1037 JNIEXPORT const char * JNICALL
1038 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1039
1040 /*
1041 * Returns the modifiers of a field in calledClass. The field is
1042 * referred to in class cb at constant pool entry index.
1043 *
1044 * The caller must treat the string as a constant and not modify it
1045 * in any way.
1046 *
1047 * Returns -1 if the field does not exist in calledClass.
1048 */
1049 JNIEXPORT jint JNICALL
1050 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1051
1052 /*
1053 * Returns the modifiers of a method in calledClass. The method is
1054 * referred to in class cb at constant pool entry index.
1055 *
1056 * Returns -1 if the method does not exist in calledClass.
1057 */
1058 JNIEXPORT jint JNICALL
1059 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1060
1061 /*
1062 * Releases the UTF string obtained from the VM.
1063 */
1064 JNIEXPORT void JNICALL
1065 JVM_ReleaseUTF(const char *utf);
1066
1067 /*
1068 * Compare if two classes are in the same package.
1069 */
1070 JNIEXPORT jboolean JNICALL
1071 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1072
1073
1074 /*************************************************************************
1075 PART 3: I/O and Network Support
1076 ************************************************************************/
1077
1078 /*
1079 * Convert a pathname into native format. This function does syntactic
1080 * cleanup, such as removing redundant separator characters. It modifies
1081 * the given pathname string in place.
1082 */
1083 JNIEXPORT char * JNICALL
1084 JVM_NativePath(char *);
1085
1086 JNIEXPORT void * JNICALL
1087 JVM_RawMonitorCreate(void);
1088
1089 JNIEXPORT void JNICALL
1090 JVM_RawMonitorDestroy(void *mon);
1091
1092 JNIEXPORT jint JNICALL
1093 JVM_RawMonitorEnter(void *mon);
1094
1095 JNIEXPORT void JNICALL
1096 JVM_RawMonitorExit(void *mon);
1097
1098 /*
1099 * java.lang.management support
1100 */
1101 JNIEXPORT void* JNICALL
1102 JVM_GetManagement(jint version);
1103
1104 /*
1105 * com.sun.tools.attach.VirtualMachine support
1106 *
1107 * Initialize the agent properties with the properties maintained in the VM.
1108 */
1109 JNIEXPORT jobject JNICALL
1110 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1111
1112 JNIEXPORT jstring JNICALL
1113 JVM_GetTemporaryDirectory(JNIEnv *env);
1114
1115 /* Generics reflection support.
1116 *
1117 * Returns information about the given class's EnclosingMethod
1118 * attribute, if present, or null if the class had no enclosing
1119 * method.
1120 *
1121 * If non-null, the returned array contains three elements. Element 0
1122 * is the java.lang.Class of which the enclosing method is a member,
1123 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1124 * method's name and descriptor, respectively.
1125 */
1126 JNIEXPORT jobjectArray JNICALL
1127 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1128
1129 /*
1130 * Virtual thread support.
1131 */
1132 JNIEXPORT void JNICALL
1133 JVM_VirtualThreadStart(JNIEnv* env, jobject vthread);
1134
1135 JNIEXPORT void JNICALL
1136 JVM_VirtualThreadEnd(JNIEnv* env, jobject vthread);
1137
1138 JNIEXPORT void JNICALL
1139 JVM_VirtualThreadMount(JNIEnv* env, jobject vthread, jboolean hide);
1140
1141 JNIEXPORT void JNICALL
1142 JVM_VirtualThreadUnmount(JNIEnv* env, jobject vthread, jboolean hide);
1143
1144 JNIEXPORT void JNICALL
1145 JVM_VirtualThreadDisableSuspend(JNIEnv* env, jclass clazz, jboolean enter);
1146
1147 JNIEXPORT void JNICALL
1148 JVM_VirtualThreadPinnedEvent(JNIEnv* env, jclass clazz, jstring op);
1149
1150 JNIEXPORT jobject JNICALL
1151 JVM_TakeVirtualThreadListToUnblock(JNIEnv* env, jclass ignored);
1152
1153 /*
1154 * Core reflection support.
1155 */
1156 JNIEXPORT jint JNICALL
1157 JVM_GetClassFileVersion(JNIEnv *env, jclass current);
1158
1159 /*
1160 * Return JNI_TRUE if warnings are printed when agents are dynamically loaded.
1161 */
1162 JNIEXPORT jboolean JNICALL
1163 JVM_PrintWarningAtDynamicAgentLoad(void);
1164
1165 #define JNI_ONLOAD_SYMBOLS {"JNI_OnLoad"}
1166 #define JNI_ONUNLOAD_SYMBOLS {"JNI_OnUnload"}
1167 #define JVM_ONLOAD_SYMBOLS {"JVM_OnLoad"}
1168 #define AGENT_ONLOAD_SYMBOLS {"Agent_OnLoad"}
1169 #define AGENT_ONUNLOAD_SYMBOLS {"Agent_OnUnload"}
1170 #define AGENT_ONATTACH_SYMBOLS {"Agent_OnAttach"}
1171
1172 /*
1173 * This structure is used by the launcher to get the default thread
1174 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1175 * version of 1.1. As it is not supported otherwise, it has been removed
1176 * from jni.h
1177 */
1178 typedef struct JDK1_1InitArgs {
1179 jint version;
1180
1181 char **properties;
1182 jint checkSource;
1183 jint nativeStackSize;
1184 jint javaStackSize;
1185 jint minHeapSize;
1186 jint maxHeapSize;
1187 jint verifyMode;
1188 char *classpath;
1189
1190 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1191 void (JNICALL *exit)(jint code);
1192 void (JNICALL *abort)(void);
1193
1194 jint enableClassGC;
1195 jint enableVerboseGC;
1196 jint disableAsyncGC;
1197 jint verbose;
1198 jboolean debugging;
1199 jint debugPort;
1200 } JDK1_1InitArgs;
1201
1202
1203 #ifdef __cplusplus
1204 } /* extern "C" */
1205
1206 #endif /* __cplusplus */
1207
1208 #endif /* !_JAVASOFT_JVM_H_ */