1 /*
2 * Copyright (c) 1997, 2025, 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_constants.h"
33 #include "jvm_io.h"
34 #include "jvm_md.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 jlong JNICALL
91 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
92
93 JNIEXPORT jlong JNICALL
94 JVM_NanoTime(JNIEnv *env, jclass ignored);
95
96 JNIEXPORT jlong JNICALL
97 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);
98
99 JNIEXPORT void JNICALL
100 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
101 jobject dst, jint dst_pos, jint length);
102
103 /*
104 * Return an array of all properties as alternating name and value pairs.
105 */
106 JNIEXPORT jobjectArray JNICALL
107 JVM_GetProperties(JNIEnv *env);
108
109 /*
110 * java.lang.Runtime
111 */
112 JNIEXPORT void JNICALL
113 JVM_BeforeHalt();
114
115 JNIEXPORT void JNICALL
116 JVM_Halt(jint code);
117
118 JNIEXPORT void JNICALL
119 JVM_GC(void);
120
121 /* Returns the number of real-time milliseconds that have elapsed since the
122 * least-recently-inspected heap object was last inspected by the garbage
123 * collector.
124 *
125 * For simple stop-the-world collectors this value is just the time
126 * since the most recent collection. For generational collectors it is the
127 * time since the oldest generation was most recently collected. Other
128 * collectors are free to return a pessimistic estimate of the elapsed time, or
129 * simply the time since the last full collection was performed.
130 *
131 * Note that in the presence of reference objects, a given object that is no
132 * longer strongly reachable may have to be inspected multiple times before it
133 * can be reclaimed.
134 */
135 JNIEXPORT jlong JNICALL
136 JVM_MaxObjectInspectionAge(void);
137
138 JNIEXPORT jlong JNICALL
139 JVM_TotalMemory(void);
140
141 JNIEXPORT jlong JNICALL
142 JVM_FreeMemory(void);
143
144 JNIEXPORT jlong JNICALL
145 JVM_MaxMemory(void);
146
147 JNIEXPORT jint JNICALL
148 JVM_ActiveProcessorCount(void);
149
150 JNIEXPORT jboolean JNICALL
151 JVM_IsUseContainerSupport(void);
152
153 JNIEXPORT jboolean JNICALL
154 JVM_IsContainerized(void);
155
156 JNIEXPORT void * JNICALL
157 JVM_LoadZipLibrary();
158
159 JNIEXPORT void * JNICALL
160 JVM_LoadLibrary(const char *name, jboolean throwException);
161
162 JNIEXPORT void JNICALL
163 JVM_UnloadLibrary(void * handle);
164
165 JNIEXPORT void * JNICALL
166 JVM_FindLibraryEntry(void *handle, const char *name);
167
168 JNIEXPORT jboolean JNICALL
169 JVM_IsSupportedJNIVersion(jint version);
170
171 JNIEXPORT jobjectArray JNICALL
172 JVM_GetVmArguments(JNIEnv *env);
173
174 JNIEXPORT jboolean JNICALL
175 JVM_IsPreviewEnabled(void);
176
177 JNIEXPORT jboolean JNICALL
178 JVM_IsValhallaEnabled(void);
179
180 JNIEXPORT jboolean JNICALL
181 JVM_IsContinuationsSupported(void);
182
183 JNIEXPORT jboolean JNICALL
184 JVM_IsForeignLinkerSupported(void);
185
186 JNIEXPORT jboolean JNICALL
187 JVM_IsStaticallyLinked(void);
188
189 JNIEXPORT void JNICALL
190 JVM_InitializeFromArchive(JNIEnv* env, jclass cls);
191
192 JNIEXPORT void JNICALL
193 JVM_RegisterLambdaProxyClassForArchiving(JNIEnv* env, jclass caller,
194 jstring interfaceMethodName,
195 jobject factoryType,
196 jobject interfaceMethodType,
197 jobject implementationMember,
198 jobject dynamicMethodType,
199 jclass lambdaProxyClass);
200
201 JNIEXPORT jclass JNICALL
202 JVM_LookupLambdaProxyClassFromArchive(JNIEnv* env, jclass caller,
203 jstring interfaceMethodName,
204 jobject factoryType,
205 jobject interfaceMethodType,
206 jobject implementationMember,
207 jobject dynamicMethodType);
208
209 JNIEXPORT jint JNICALL
210 JVM_GetCDSConfigStatus();
211
212 JNIEXPORT jlong JNICALL
213 JVM_GetRandomSeedForDumping();
214
215 JNIEXPORT void JNICALL
216 JVM_LogLambdaFormInvoker(JNIEnv* env, jstring line);
217
218 JNIEXPORT void JNICALL
219 JVM_DumpClassListToFile(JNIEnv* env, jstring fileName);
220
221 JNIEXPORT void JNICALL
222 JVM_DumpDynamicArchive(JNIEnv* env, jstring archiveName);
223
224 /*
225 * java.lang.Throwable
226 */
227 JNIEXPORT void JNICALL
228 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
229
230 /*
231 * java.lang.StackTraceElement
232 */
233 JNIEXPORT void JNICALL
234 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject backtrace, jint depth);
235
236 JNIEXPORT void JNICALL
237 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
238
239 /*
240 * java.lang.NullPointerException
241 */
242
243 JNIEXPORT jstring JNICALL
244 JVM_GetExtendedNPEMessage(JNIEnv *env, jthrowable throwable);
245
246 /*
247 * java.lang.StackWalker
248 */
249 enum {
250 JVM_STACKWALK_CLASS_INFO_ONLY = 0x2,
251 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20,
252 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100
253 };
254
255 JNIEXPORT void JNICALL
256 JVM_ExpandStackFrameInfo(JNIEnv *env, jobject obj);
257
258 JNIEXPORT jobject JNICALL
259 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jint mode,
260 jint skip_frames, jobject contScope, jobject cont,
261 jint buffer_size, jint start_index, jobjectArray frames);
262
263 JNIEXPORT jint JNICALL
264 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jint mode, jlong anchor,
265 jint last_batch_count, jint buffer_size, jint start_index,
266 jobjectArray frames);
267
268 JNIEXPORT void JNICALL
269 JVM_SetStackWalkContinuation(JNIEnv *env, jobject stackStream, jlong anchor, jobjectArray frames, jobject cont);
270
271 /*
272 * java.lang.Thread
273 */
274 JNIEXPORT void JNICALL
275 JVM_StartThread(JNIEnv *env, jobject thread);
276
277 JNIEXPORT void JNICALL
278 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
279
280 JNIEXPORT void JNICALL
281 JVM_Yield(JNIEnv *env, jclass threadClass);
282
283 JNIEXPORT void JNICALL
284 JVM_SleepNanos(JNIEnv *env, jclass threadClass, jlong nanos);
285
286 JNIEXPORT jobject JNICALL
287 JVM_CurrentCarrierThread(JNIEnv *env, jclass threadClass);
288
289 JNIEXPORT jobject JNICALL
290 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
291
292 JNIEXPORT void JNICALL
293 JVM_SetCurrentThread(JNIEnv *env, jobject thisThread, jobject theThread);
294
295 JNIEXPORT void JNICALL
296 JVM_Interrupt(JNIEnv *env, jobject thread);
297
298 JNIEXPORT jboolean JNICALL
299 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
300
301 JNIEXPORT jobject JNICALL
302 JVM_GetStackTrace(JNIEnv *env, jobject thread);
303
304 JNIEXPORT jobjectArray JNICALL
305 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
306
307 JNIEXPORT void JNICALL
308 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
309
310 /* getStackTrace() and getAllStackTraces() method */
311 JNIEXPORT jobjectArray JNICALL
312 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
313
314 JNIEXPORT jobject JNICALL
315 JVM_ScopedValueCache(JNIEnv *env, jclass threadClass);
316
317 JNIEXPORT void JNICALL
318 JVM_SetScopedValueCache(JNIEnv *env, jclass threadClass, jobject theCache);
319
320 JNIEXPORT jobject JNICALL
321 JVM_FindScopedValueBindings(JNIEnv *env, jclass threadClass);
322
323 JNIEXPORT jlong JNICALL
324 JVM_GetNextThreadIdOffset(JNIEnv *env, jclass threadClass);
325
326 /*
327 * jdk.internal.vm.Continuation
328 */
329 JNIEXPORT void JNICALL
330 JVM_RegisterContinuationMethods(JNIEnv *env, jclass cls);
331
332 /*
333 * java.lang.Package
334 */
335 JNIEXPORT jstring JNICALL
336 JVM_GetSystemPackage(JNIEnv *env, jstring name);
337
338 JNIEXPORT jobjectArray JNICALL
339 JVM_GetSystemPackages(JNIEnv *env);
340
341 /*
342 * java.lang.ref.Reference
343 */
344 JNIEXPORT jobject JNICALL
345 JVM_GetAndClearReferencePendingList(JNIEnv *env);
346
347 JNIEXPORT jboolean JNICALL
348 JVM_HasReferencePendingList(JNIEnv *env);
349
350 JNIEXPORT void JNICALL
351 JVM_WaitForReferencePendingList(JNIEnv *env);
352
353 JNIEXPORT jboolean JNICALL
354 JVM_ReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
355
356 JNIEXPORT void JNICALL
357 JVM_ReferenceClear(JNIEnv *env, jobject ref);
358
359 /*
360 * java.lang.ref.PhantomReference
361 */
362 JNIEXPORT jboolean JNICALL
363 JVM_PhantomReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
364
365 /*
366 * java.io.ObjectInputStream
367 */
368 JNIEXPORT jobject JNICALL
369 JVM_LatestUserDefinedLoader(JNIEnv *env);
370
371 /*
372 * java.lang.reflect.Array
373 */
374 JNIEXPORT jint JNICALL
375 JVM_GetArrayLength(JNIEnv *env, jobject arr);
376
377 JNIEXPORT jobject JNICALL
378 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
379
380 JNIEXPORT jvalue JNICALL
381 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
382
383 JNIEXPORT void JNICALL
384 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
385
386 JNIEXPORT void JNICALL
387 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
388 unsigned char vCode);
389
390 JNIEXPORT jobject JNICALL
391 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
392
393 JNIEXPORT jobject JNICALL
394 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
395
396
397 /*
398 * Returns the immediate caller class of the native method invoking
399 * JVM_GetCallerClass. The Method.invoke and other frames due to
400 * reflection machinery are skipped.
401 *
402 * The caller is expected to be marked with
403 * jdk.internal.reflect.CallerSensitive. The JVM will throw an
404 * error if it is not marked properly.
405 */
406 JNIEXPORT jclass JNICALL
407 JVM_GetCallerClass(JNIEnv *env);
408
409
410 /*
411 * Find primitive classes
412 * utf: class name
413 */
414 JNIEXPORT jclass JNICALL
415 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
416
417
418 /*
419 * Find a class from a boot class loader. Returns null if class not found.
420 */
421 JNIEXPORT jclass JNICALL
422 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
423
424 /*
425 * Find a class from a given class loader. Throws ClassNotFoundException.
426 * name: name of class
427 * init: whether initialization is done
428 * loader: class loader to look up the class. This may not be the same as the caller's
429 * class loader.
430 * caller: initiating class. The initiating class may be null when a security
431 * manager is not installed.
432 */
433 JNIEXPORT jclass JNICALL
434 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
435 jobject loader, jclass caller);
436
437 /*
438 * Find a class from a given class.
439 */
440 JNIEXPORT jclass JNICALL
441 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
442 jclass from);
443
444 /* Find a loaded class cached by the VM */
445 JNIEXPORT jclass JNICALL
446 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
447
448 /* Define a class */
449 JNIEXPORT jclass JNICALL
450 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
451 jsize len, jobject pd);
452
453 /* Define a class with a source (added in JDK1.5) */
454 JNIEXPORT jclass JNICALL
455 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
456 const jbyte *buf, jsize len, jobject pd,
457 const char *source);
458
459 /*
460 * Define a class with the specified lookup class.
461 * lookup: Lookup class
462 * name: the name of the class
463 * buf: class bytes
464 * len: length of class bytes
465 * pd: protection domain
466 * init: initialize the class
467 * flags: properties of the class
468 * classData: private static pre-initialized field; may be null
469 */
470 JNIEXPORT jclass JNICALL
471 JVM_LookupDefineClass(JNIEnv *env, jclass lookup, const char *name, const jbyte *buf,
472 jsize len, jobject pd, jboolean init, int flags, jobject classData);
473
474 /*
475 * Module support functions
476 */
477
478 /*
479 * Define a module with the specified packages and bind the module to the
480 * given class loader.
481 * module: module to define
482 * is_open: specifies if module is open (currently ignored)
483 * version: the module version
484 * location: the module location
485 * packages: array of packages in the module
486 */
487 JNIEXPORT void JNICALL
488 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
489 jstring location, jobjectArray packages);
490
491 /*
492 * Set the boot loader's unnamed module.
493 * module: boot loader's unnamed module
494 */
495 JNIEXPORT void JNICALL
496 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
497
498 /*
499 * Do a qualified export of a package.
500 * from_module: module containing the package to export
501 * package: name of the package to export
502 * to_module: module to export the package to
503 */
504 JNIEXPORT void JNICALL
505 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
506
507 /*
508 * Do an export of a package to all unnamed modules.
509 * from_module: module containing the package to export
510 * package: name of the package to export to all unnamed modules
511 */
512 JNIEXPORT void JNICALL
513 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
514
515 /*
516 * Do an unqualified export of a package.
517 * from_module: module containing the package to export
518 * package: name of the package to export
519 */
520 JNIEXPORT void JNICALL
521 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
522
523 /*
524 * Add a module to the list of modules that a given module can read.
525 * from_module: module requesting read access
526 * source_module: module that from_module wants to read
527 */
528 JNIEXPORT void JNICALL
529 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
530
531 /*
532 * Define all modules that have been stored in the CDS archived heap.
533 * platform_loader: the built-in platform class loader
534 * system_loader: the built-in system class loader
535 */
536 JNIEXPORT void JNICALL
537 JVM_DefineArchivedModules(JNIEnv *env, jobject platform_loader, jobject system_loader);
538
539 /*
540 * Reflection support functions
541 */
542
543 JNIEXPORT jstring JNICALL
544 JVM_InitClassName(JNIEnv *env, jclass cls);
545
546 JNIEXPORT jobjectArray JNICALL
547 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
548
549 JNIEXPORT jboolean JNICALL
550 JVM_IsInterface(JNIEnv *env, jclass cls);
551
552 JNIEXPORT jobject JNICALL
553 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
554
555 JNIEXPORT jboolean JNICALL
556 JVM_IsArrayClass(JNIEnv *env, jclass cls);
557
558 JNIEXPORT jboolean JNICALL
559 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
560
561 JNIEXPORT jboolean JNICALL
562 JVM_IsHiddenClass(JNIEnv *env, jclass cls);
563
564 JNIEXPORT jboolean JNICALL
565 JVM_IsIdentityClass(JNIEnv *env, jclass cls);
566
567 JNIEXPORT jboolean JNICALL
568 JVM_IsImplicitlyConstructibleClass(JNIEnv *env, jclass cls);
569
570 JNIEXPORT jint JNICALL
571 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
572
573 JNIEXPORT jobjectArray JNICALL
574 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
575
576 JNIEXPORT jclass JNICALL
577 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
578
579 JNIEXPORT jstring JNICALL
580 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
581
582 /* Generics support (JDK 1.5) */
583 JNIEXPORT jstring JNICALL
584 JVM_GetClassSignature(JNIEnv *env, jclass cls);
585
586 /* Annotations support (JDK 1.5) */
587 JNIEXPORT jbyteArray JNICALL
588 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
589
590 /* Type use annotations support (JDK 1.8) */
591
592 JNIEXPORT jbyteArray JNICALL
593 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
594
595 JNIEXPORT jbyteArray JNICALL
596 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
597
598 JNIEXPORT jbyteArray JNICALL
599 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
600
601 /*
602 * New (JDK 1.4) reflection implementation
603 */
604
605 JNIEXPORT jobjectArray JNICALL
606 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
607
608 JNIEXPORT jobjectArray JNICALL
609 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
610
611 JNIEXPORT jobjectArray JNICALL
612 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
613
614
615 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
616 This returns the access flags for the class as specified in the
617 class file rather than searching the InnerClasses attribute (if
618 present) to find the source-level access flags. Only the values of
619 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
620 valid. */
621 JNIEXPORT jint JNICALL
622 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
623
624 /* Nestmates - since JDK 11 */
625
626 JNIEXPORT jboolean JNICALL
627 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member);
628
629 JNIEXPORT jclass JNICALL
630 JVM_GetNestHost(JNIEnv *env, jclass current);
631
632 JNIEXPORT jobjectArray JNICALL
633 JVM_GetNestMembers(JNIEnv *env, jclass current);
634
635 /* Records - since JDK 16 */
636
637 JNIEXPORT jboolean JNICALL
638 JVM_IsRecord(JNIEnv *env, jclass cls);
639
640 JNIEXPORT jobjectArray JNICALL
641 JVM_GetRecordComponents(JNIEnv *env, jclass ofClass);
642
643 /* Sealed classes - since JDK 17 */
644
645 JNIEXPORT jobjectArray JNICALL
646 JVM_GetPermittedSubclasses(JNIEnv *env, jclass current);
647
648 /* The following two reflection routines are still needed due to startup time issues */
649 /*
650 * java.lang.reflect.Method
651 */
652 JNIEXPORT jobject JNICALL
653 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
654
655 /*
656 * java.lang.reflect.Constructor
657 */
658 JNIEXPORT jobject JNICALL
659 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
660
661 /*
662 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
663 */
664
665 JNIEXPORT jobject JNICALL
666 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
667
668 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
669 (JNIEnv *env, jobject unused, jobject jcpool);
670
671 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
672 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
673
674 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
675 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
676
677 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
678 (JNIEnv *env, jobject obj, jobject unused, jint index);
679
680 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
681 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
682
683 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
684 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
685
686 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
687 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
688
689 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
690 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
691
692 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
693 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
694
695 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
696 (JNIEnv *env, jobject obj, jobject unused, jint index);
697
698 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
699 (JNIEnv *env, jobject obj, jobject unused, jint index);
700
701 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
702 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
703
704 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
705 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
706
707 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
708 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
709
710 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
711 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
712
713 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
714 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
715
716 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
717 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
718
719 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
720 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
721
722 /*
723 * Parameter reflection
724 */
725
726 JNIEXPORT jobjectArray JNICALL
727 JVM_GetMethodParameters(JNIEnv *env, jobject method);
728
729 /*
730 * Ensure that code doing a stackwalk and using javaVFrame::locals() to
731 * get the value will see a materialized value and not a scalar-replaced
732 * null value.
733 */
734 #define JVM_EnsureMaterializedForStackWalk(env, value) \
735 do {} while(0) // Nothing to do. The fact that the value escaped
736 // through a native method is enough.
737 JNIEXPORT void JNICALL
738 JVM_EnsureMaterializedForStackWalk_func(JNIEnv* env, jobject vthread, jobject value);
739
740 /*
741 * Signal support, used to implement the shutdown sequence. Every VM must
742 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
743 * (^C) and the latter for external termination (kill, system shutdown, etc.).
744 * Other platform-dependent signal values may also be supported.
745 */
746
747 JNIEXPORT void * JNICALL
748 JVM_RegisterSignal(jint sig, void *handler);
749
750 JNIEXPORT jboolean JNICALL
751 JVM_RaiseSignal(jint sig);
752
753 JNIEXPORT jint JNICALL
754 JVM_FindSignal(const char *name);
755
756 /*
757 * Retrieve the assertion directives for the specified class.
758 */
759 JNIEXPORT jboolean JNICALL
760 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
761
762 /*
763 * Retrieve the assertion directives from the VM.
764 */
765 JNIEXPORT jobject JNICALL
766 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
767
768 /*
769 * java.lang.ref.Finalizer
770 */
771 JNIEXPORT void JNICALL
772 JVM_ReportFinalizationComplete(JNIEnv *env, jobject finalizee);
773
774 JNIEXPORT jboolean JNICALL
775 JVM_IsFinalizationEnabled(JNIEnv *env);
776
777 /*************************************************************************
778 PART 2: Support for the Verifier and Class File Format Checker
779 ************************************************************************/
780 /*
781 * Return the class name in UTF format. The result is valid
782 * until JVM_ReleaseUTf is called.
783 *
784 * The caller must treat the string as a constant and not modify it
785 * in any way.
786 */
787 JNIEXPORT const char * JNICALL
788 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
789
790 /*
791 * Returns the constant pool types in the buffer provided by "types."
792 */
793 JNIEXPORT void JNICALL
794 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
795
796 /*
797 * Returns the number of Constant Pool entries.
798 */
799 JNIEXPORT jint JNICALL
800 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
801
802 /*
803 * Returns the number of *declared* fields or methods.
804 */
805 JNIEXPORT jint JNICALL
806 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
807
808 JNIEXPORT jint JNICALL
809 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
810
811 /*
812 * Returns the CP indexes of exceptions raised by a given method.
813 * Places the result in the given buffer.
814 *
815 * The method is identified by method_index.
816 */
817 JNIEXPORT void JNICALL
818 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
819 unsigned short *exceptions);
820 /*
821 * Returns the number of exceptions raised by a given method.
822 * The method is identified by method_index.
823 */
824 JNIEXPORT jint JNICALL
825 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
826
827 /*
828 * Returns the byte code sequence of a given method.
829 * Places the result in the given buffer.
830 *
831 * The method is identified by method_index.
832 */
833 JNIEXPORT void JNICALL
834 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
835 unsigned char *code);
836
837 /*
838 * Returns the length of the byte code sequence of a given method.
839 * The method is identified by method_index.
840 */
841 JNIEXPORT jint JNICALL
842 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
843
844 /*
845 * A structure used to a capture exception table entry in a Java method.
846 */
847 typedef struct {
848 jint start_pc;
849 jint end_pc;
850 jint handler_pc;
851 jint catchType;
852 } JVM_ExceptionTableEntryType;
853
854 /*
855 * Returns the exception table entry at entry_index of a given method.
856 * Places the result in the given buffer.
857 *
858 * The method is identified by method_index.
859 */
860 JNIEXPORT void JNICALL
861 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
862 jint entry_index,
863 JVM_ExceptionTableEntryType *entry);
864
865 /*
866 * Returns the length of the exception table of a given method.
867 * The method is identified by method_index.
868 */
869 JNIEXPORT jint JNICALL
870 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
871
872 /*
873 * Returns the modifiers of a given field.
874 * The field is identified by field_index.
875 */
876 JNIEXPORT jint JNICALL
877 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
878
879 /*
880 * Returns the modifiers of a given method.
881 * The method is identified by method_index.
882 */
883 JNIEXPORT jint JNICALL
884 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
885
886 /*
887 * Returns the number of local variables of a given method.
888 * The method is identified by method_index.
889 */
890 JNIEXPORT jint JNICALL
891 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
892
893 /*
894 * Returns the number of arguments (including this pointer) of a given method.
895 * The method is identified by method_index.
896 */
897 JNIEXPORT jint JNICALL
898 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
899
900 /*
901 * Returns the maximum amount of stack (in words) used by a given method.
902 * The method is identified by method_index.
903 */
904 JNIEXPORT jint JNICALL
905 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
906
907 /*
908 * Is a given method a constructor.
909 * The method is identified by method_index.
910 */
911 JNIEXPORT jboolean JNICALL
912 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
913
914 /*
915 * Is the given method generated by the VM.
916 * The method is identified by method_index.
917 */
918 JNIEXPORT jboolean JNICALL
919 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
920
921 /*
922 * Returns the name of a given method in UTF format.
923 * The result remains valid until JVM_ReleaseUTF is called.
924 *
925 * The caller must treat the string as a constant and not modify it
926 * in any way.
927 */
928 JNIEXPORT const char * JNICALL
929 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
930
931 /*
932 * Returns the signature of a given method in UTF format.
933 * The result remains valid until JVM_ReleaseUTF is called.
934 *
935 * The caller must treat the string as a constant and not modify it
936 * in any way.
937 */
938 JNIEXPORT const char * JNICALL
939 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
940
941 /*
942 * Returns the name of the field referred to at a given constant pool
943 * index.
944 *
945 * The result is in UTF format and remains valid until JVM_ReleaseUTF
946 * is called.
947 *
948 * The caller must treat the string as a constant and not modify it
949 * in any way.
950 */
951 JNIEXPORT const char * JNICALL
952 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
953
954 /*
955 * Returns the name of the method referred to at a given constant pool
956 * index.
957 *
958 * The result is in UTF format and remains valid until JVM_ReleaseUTF
959 * is called.
960 *
961 * The caller must treat the string as a constant and not modify it
962 * in any way.
963 */
964 JNIEXPORT const char * JNICALL
965 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
966
967 /*
968 * Returns the signature of the method referred to at a given constant pool
969 * index.
970 *
971 * The result is in UTF format and remains valid until JVM_ReleaseUTF
972 * is called.
973 *
974 * The caller must treat the string as a constant and not modify it
975 * in any way.
976 */
977 JNIEXPORT const char * JNICALL
978 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
979
980 /*
981 * Returns the signature of the field referred to at a given constant pool
982 * index.
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_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
992
993 /*
994 * Returns the class name referred to at a given constant pool index.
995 *
996 * The result is in UTF format and remains valid until JVM_ReleaseUTF
997 * is called.
998 *
999 * The caller must treat the string as a constant and not modify it
1000 * in any way.
1001 */
1002 JNIEXPORT const char * JNICALL
1003 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
1004
1005 /*
1006 * Returns the class name referred to at a given constant pool index.
1007 *
1008 * The constant pool entry must refer to a CONSTANT_Fieldref.
1009 *
1010 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1011 * is called.
1012 *
1013 * The caller must treat the string as a constant and not modify it
1014 * in any way.
1015 */
1016 JNIEXPORT const char * JNICALL
1017 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
1018
1019 /*
1020 * Returns the class name referred to at a given constant pool index.
1021 *
1022 * The constant pool entry must refer to CONSTANT_Methodref or
1023 * CONSTANT_InterfaceMethodref.
1024 *
1025 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1026 * is called.
1027 *
1028 * The caller must treat the string as a constant and not modify it
1029 * in any way.
1030 */
1031 JNIEXPORT const char * JNICALL
1032 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1033
1034 /*
1035 * Returns the modifiers of a field in calledClass. The field is
1036 * referred to in class cb at constant pool entry index.
1037 *
1038 * The caller must treat the string as a constant and not modify it
1039 * in any way.
1040 *
1041 * Returns -1 if the field does not exist in calledClass.
1042 */
1043 JNIEXPORT jint JNICALL
1044 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1045
1046 /*
1047 * Returns the modifiers of a method in calledClass. The method is
1048 * referred to in class cb at constant pool entry index.
1049 *
1050 * Returns -1 if the method does not exist in calledClass.
1051 */
1052 JNIEXPORT jint JNICALL
1053 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1054
1055 /*
1056 * Releases the UTF string obtained from the VM.
1057 */
1058 JNIEXPORT void JNICALL
1059 JVM_ReleaseUTF(const char *utf);
1060
1061 /*
1062 * Compare if two classes are in the same package.
1063 */
1064 JNIEXPORT jboolean JNICALL
1065 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1066
1067
1068 /*************************************************************************
1069 PART 3: I/O and Network Support
1070 ************************************************************************/
1071
1072 /*
1073 * Convert a pathname into native format. This function does syntactic
1074 * cleanup, such as removing redundant separator characters. It modifies
1075 * the given pathname string in place.
1076 */
1077 JNIEXPORT char * JNICALL
1078 JVM_NativePath(char *);
1079
1080 JNIEXPORT void * JNICALL
1081 JVM_RawMonitorCreate(void);
1082
1083 JNIEXPORT void JNICALL
1084 JVM_RawMonitorDestroy(void *mon);
1085
1086 JNIEXPORT jint JNICALL
1087 JVM_RawMonitorEnter(void *mon);
1088
1089 JNIEXPORT void JNICALL
1090 JVM_RawMonitorExit(void *mon);
1091
1092 /*
1093 * java.lang.management support
1094 */
1095 JNIEXPORT void* JNICALL
1096 JVM_GetManagement(jint version);
1097
1098 /*
1099 * com.sun.tools.attach.VirtualMachine support
1100 *
1101 * Initialize the agent properties with the properties maintained in the VM.
1102 */
1103 JNIEXPORT jobject JNICALL
1104 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1105
1106 JNIEXPORT jstring JNICALL
1107 JVM_GetTemporaryDirectory(JNIEnv *env);
1108
1109 JNIEXPORT jarray JNICALL
1110 JVM_NewNullRestrictedArray(JNIEnv *env, jclass elmClass, jint len);
1111
1112 JNIEXPORT jarray JNICALL
1113 JVM_NewNullRestrictedAtomicArray(JNIEnv *env, jclass elmClass, jint len);
1114
1115 JNIEXPORT jarray JNICALL
1116 JVM_NewNullableAtomicArray(JNIEnv *env, jclass elmClass, jint len);
1117
1118 JNIEXPORT jboolean JNICALL
1119 JVM_IsFlatArray(JNIEnv *env, jobject obj);
1120
1121 JNIEXPORT jboolean JNICALL
1122 JVM_IsNullRestrictedArray(JNIEnv *env, jobject obj);
1123
1124 /* Generics reflection support.
1125 *
1126 * Returns information about the given class's EnclosingMethod
1127 * attribute, if present, or null if the class had no enclosing
1128 * method.
1129 *
1130 * If non-null, the returned array contains three elements. Element 0
1131 * is the java.lang.Class of which the enclosing method is a member,
1132 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1133 * method's name and descriptor, respectively.
1134 */
1135 JNIEXPORT jobjectArray JNICALL
1136 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1137
1138 /*
1139 * Virtual thread support.
1140 */
1141 JNIEXPORT void JNICALL
1142 JVM_VirtualThreadStart(JNIEnv* env, jobject vthread);
1143
1144 JNIEXPORT void JNICALL
1145 JVM_VirtualThreadEnd(JNIEnv* env, jobject vthread);
1146
1147 JNIEXPORT void JNICALL
1148 JVM_VirtualThreadMount(JNIEnv* env, jobject vthread, jboolean hide);
1149
1150 JNIEXPORT void JNICALL
1151 JVM_VirtualThreadUnmount(JNIEnv* env, jobject vthread, jboolean hide);
1152
1153 JNIEXPORT void JNICALL
1154 JVM_VirtualThreadDisableSuspend(JNIEnv* env, jclass clazz, jboolean enter);
1155
1156 JNIEXPORT void JNICALL
1157 JVM_VirtualThreadPinnedEvent(JNIEnv* env, jclass clazz, jstring op);
1158
1159 JNIEXPORT jobject JNICALL
1160 JVM_TakeVirtualThreadListToUnblock(JNIEnv* env, jclass ignored);
1161
1162 /*
1163 * Core reflection support.
1164 */
1165 JNIEXPORT jint JNICALL
1166 JVM_GetClassFileVersion(JNIEnv *env, jclass current);
1167
1168 /*
1169 * Return JNI_TRUE if warnings are printed when agents are dynamically loaded.
1170 */
1171 JNIEXPORT jboolean JNICALL
1172 JVM_PrintWarningAtDynamicAgentLoad(void);
1173
1174 /*
1175 * This structure is used by the launcher to get the default thread
1176 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1177 * version of 1.1. As it is not supported otherwise, it has been removed
1178 * from jni.h
1179 */
1180 typedef struct JDK1_1InitArgs {
1181 jint version;
1182
1183 char **properties;
1184 jint checkSource;
1185 jint nativeStackSize;
1186 jint javaStackSize;
1187 jint minHeapSize;
1188 jint maxHeapSize;
1189 jint verifyMode;
1190 char *classpath;
1191
1192 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1193 void (JNICALL *exit)(jint code);
1194 void (JNICALL *abort)(void);
1195
1196 jint enableClassGC;
1197 jint enableVerboseGC;
1198 jint disableAsyncGC;
1199 jint verbose;
1200 jboolean debugging;
1201 jint debugPort;
1202 } JDK1_1InitArgs;
1203
1204
1205 #ifdef __cplusplus
1206 } /* extern "C" */
1207
1208 #endif /* __cplusplus */
1209
1210 #endif /* !_JAVASOFT_JVM_H_ */