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 JNIEXPORT jboolean JNICALL
225 JVM_NeedsClassInitBarrierForCDS(JNIEnv* env, jclass cls);
226
227 /*
228 * java.lang.Throwable
229 */
230 JNIEXPORT void JNICALL
231 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
232
233 /*
234 * java.lang.StackTraceElement
235 */
236 JNIEXPORT void JNICALL
237 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject backtrace, jint depth);
238
239 JNIEXPORT void JNICALL
240 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
241
242 /*
243 * java.lang.NullPointerException
244 */
245
246 JNIEXPORT jstring JNICALL
247 JVM_GetExtendedNPEMessage(JNIEnv *env, jthrowable throwable);
248
249 /*
250 * java.lang.StackWalker
251 */
252 enum {
253 JVM_STACKWALK_CLASS_INFO_ONLY = 0x2,
254 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20,
255 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100
256 };
257
258 JNIEXPORT void JNICALL
259 JVM_ExpandStackFrameInfo(JNIEnv *env, jobject obj);
260
261 JNIEXPORT jobject JNICALL
262 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jint mode,
263 jint skip_frames, jobject contScope, jobject cont,
264 jint buffer_size, jint start_index, jobjectArray frames);
265
266 JNIEXPORT jint JNICALL
267 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jint mode, jlong anchor,
268 jint last_batch_count, jint buffer_size, jint start_index,
269 jobjectArray frames);
270
271 JNIEXPORT void JNICALL
272 JVM_SetStackWalkContinuation(JNIEnv *env, jobject stackStream, jlong anchor, jobjectArray frames, jobject cont);
273
274 /*
275 * java.lang.Thread
276 */
277 JNIEXPORT void JNICALL
278 JVM_StartThread(JNIEnv *env, jobject thread);
279
280 JNIEXPORT void JNICALL
281 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
282
283 JNIEXPORT void JNICALL
284 JVM_Yield(JNIEnv *env, jclass threadClass);
285
286 JNIEXPORT void JNICALL
287 JVM_SleepNanos(JNIEnv *env, jclass threadClass, jlong nanos);
288
289 JNIEXPORT jobject JNICALL
290 JVM_CurrentCarrierThread(JNIEnv *env, jclass threadClass);
291
292 JNIEXPORT jobject JNICALL
293 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
294
295 JNIEXPORT void JNICALL
296 JVM_SetCurrentThread(JNIEnv *env, jobject thisThread, jobject theThread);
297
298 JNIEXPORT void JNICALL
299 JVM_Interrupt(JNIEnv *env, jobject thread);
300
301 JNIEXPORT jboolean JNICALL
302 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
303
304 JNIEXPORT jobject JNICALL
305 JVM_GetStackTrace(JNIEnv *env, jobject thread);
306
307 JNIEXPORT jobject JNICALL
308 JVM_CreateThreadSnapshot(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.Package
340 */
341 JNIEXPORT jstring JNICALL
342 JVM_GetSystemPackage(JNIEnv *env, jstring name);
343
344 JNIEXPORT jobjectArray JNICALL
345 JVM_GetSystemPackages(JNIEnv *env);
346
347 /*
348 * java.lang.ref.Reference
349 */
350 JNIEXPORT jobject JNICALL
351 JVM_GetAndClearReferencePendingList(JNIEnv *env);
352
353 JNIEXPORT jboolean JNICALL
354 JVM_HasReferencePendingList(JNIEnv *env);
355
356 JNIEXPORT void JNICALL
357 JVM_WaitForReferencePendingList(JNIEnv *env);
358
359 JNIEXPORT jobject JNICALL
360 JVM_ReferenceGet(JNIEnv *env, jobject ref);
361
362 JNIEXPORT jboolean JNICALL
363 JVM_ReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
364
365 JNIEXPORT void JNICALL
366 JVM_ReferenceClear(JNIEnv *env, jobject ref);
367
368 /*
369 * java.lang.ref.PhantomReference
370 */
371 JNIEXPORT jboolean JNICALL
372 JVM_PhantomReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
373
374 /*
375 * java.io.ObjectInputStream
376 */
377 JNIEXPORT jobject JNICALL
378 JVM_LatestUserDefinedLoader(JNIEnv *env);
379
380 /*
381 * java.lang.reflect.Array
382 */
383 JNIEXPORT jint JNICALL
384 JVM_GetArrayLength(JNIEnv *env, jobject arr);
385
386 JNIEXPORT jobject JNICALL
387 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
388
389 JNIEXPORT jvalue JNICALL
390 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
391
392 JNIEXPORT void JNICALL
393 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
394
395 JNIEXPORT void JNICALL
396 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
397 unsigned char vCode);
398
399 JNIEXPORT jobject JNICALL
400 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
401
402 JNIEXPORT jobject JNICALL
403 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
404
405
406 /*
407 * Returns the immediate caller class of the native method invoking
408 * JVM_GetCallerClass. The Method.invoke and other frames due to
409 * reflection machinery are skipped.
410 *
411 * The caller is expected to be marked with
412 * jdk.internal.reflect.CallerSensitive. The JVM will throw an
413 * error if it is not marked properly.
414 */
415 JNIEXPORT jclass JNICALL
416 JVM_GetCallerClass(JNIEnv *env);
417
418
419 /*
420 * Find primitive classes
421 * utf: class name
422 */
423 JNIEXPORT jclass JNICALL
424 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
425
426
427 /*
428 * Find a class from a boot class loader. Returns null if class not found.
429 */
430 JNIEXPORT jclass JNICALL
431 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
432
433 /*
434 * Find a class from a given class loader. Throws ClassNotFoundException.
435 * name: name of class
436 * init: whether initialization is done
437 * loader: class loader to look up the class. This may not be the same as the caller's
438 * class loader.
439 * caller: initiating class. The initiating class may be null when a security
440 * manager is not installed.
441 */
442 JNIEXPORT jclass JNICALL
443 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
444 jobject loader, jclass caller);
445
446 /*
447 * Find a class from a given class.
448 */
449 JNIEXPORT jclass JNICALL
450 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
451 jclass from);
452
453 /* Find a loaded class cached by the VM */
454 JNIEXPORT jclass JNICALL
455 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
456
457 /* Define a class */
458 JNIEXPORT jclass JNICALL
459 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
460 jsize len, jobject pd);
461
462 /* Define a class with a source (added in JDK1.5) */
463 JNIEXPORT jclass JNICALL
464 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
465 const jbyte *buf, jsize len, jobject pd,
466 const char *source);
467
468 /*
469 * Define a class with the specified lookup class.
470 * lookup: Lookup class
471 * name: the name of the class
472 * buf: class bytes
473 * len: length of class bytes
474 * pd: protection domain
475 * init: initialize the class
476 * flags: properties of the class
477 * classData: private static pre-initialized field; may be null
478 */
479 JNIEXPORT jclass JNICALL
480 JVM_LookupDefineClass(JNIEnv *env, jclass lookup, const char *name, const jbyte *buf,
481 jsize len, jobject pd, jboolean init, int flags, jobject classData);
482
483 /*
484 * Module support functions
485 */
486
487 /*
488 * Define a module with the specified packages and bind the module to the
489 * given class loader.
490 * module: module to define
491 * is_open: specifies if module is open (currently ignored)
492 * version: the module version
493 * location: the module location
494 * packages: array of packages in the module
495 */
496 JNIEXPORT void JNICALL
497 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
498 jstring location, jobjectArray packages);
499
500 /*
501 * Set the boot loader's unnamed module.
502 * module: boot loader's unnamed module
503 */
504 JNIEXPORT void JNICALL
505 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
506
507 /*
508 * Do a qualified export of a package.
509 * from_module: module containing the package to export
510 * package: name of the package to export
511 * to_module: module to export the package to
512 */
513 JNIEXPORT void JNICALL
514 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
515
516 /*
517 * Do an export of a package to all unnamed modules.
518 * from_module: module containing the package to export
519 * package: name of the package to export to all unnamed modules
520 */
521 JNIEXPORT void JNICALL
522 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
523
524 /*
525 * Do an unqualified export of a package.
526 * from_module: module containing the package to export
527 * package: name of the package to export
528 */
529 JNIEXPORT void JNICALL
530 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
531
532 /*
533 * Add a module to the list of modules that a given module can read.
534 * from_module: module requesting read access
535 * source_module: module that from_module wants to read
536 */
537 JNIEXPORT void JNICALL
538 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
539
540 /*
541 * Define all modules that have been stored in the CDS archived heap.
542 * platform_loader: the built-in platform class loader
543 * system_loader: the built-in system class loader
544 */
545 JNIEXPORT void JNICALL
546 JVM_DefineArchivedModules(JNIEnv *env, jobject platform_loader, jobject system_loader);
547
548 /*
549 * Reflection support functions
550 */
551
552 JNIEXPORT jstring JNICALL
553 JVM_InitClassName(JNIEnv *env, jclass cls);
554
555 JNIEXPORT jobjectArray JNICALL
556 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
557
558 JNIEXPORT jboolean JNICALL
559 JVM_IsInterface(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 jobjectArray JNICALL
568 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
569
570 JNIEXPORT jclass JNICALL
571 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
572
573 JNIEXPORT jstring JNICALL
574 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
575
576 /* Generics support (JDK 1.5) */
577 JNIEXPORT jstring JNICALL
578 JVM_GetClassSignature(JNIEnv *env, jclass cls);
579
580 /* Annotations support (JDK 1.5) */
581 JNIEXPORT jbyteArray JNICALL
582 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
583
584 /* Type use annotations support (JDK 1.8) */
585
586 JNIEXPORT jbyteArray JNICALL
587 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
588
589 JNIEXPORT jbyteArray JNICALL
590 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
591
592 JNIEXPORT jbyteArray JNICALL
593 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
594
595 /*
596 * New (JDK 1.4) reflection implementation
597 */
598
599 JNIEXPORT jobjectArray JNICALL
600 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
601
602 JNIEXPORT jobjectArray JNICALL
603 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
604
605 JNIEXPORT jobjectArray JNICALL
606 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
607
608
609 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
610 This returns the access flags for the class as specified in the
611 class file rather than searching the InnerClasses attribute (if
612 present) to find the source-level access flags. Only the values of
613 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
614 valid. */
615 JNIEXPORT jint JNICALL
616 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
617
618 /* Nestmates - since JDK 11 */
619
620 JNIEXPORT jboolean JNICALL
621 JVM_AreNestMates(JNIEnv *env, jclass current, jclass member);
622
623 JNIEXPORT jclass JNICALL
624 JVM_GetNestHost(JNIEnv *env, jclass current);
625
626 JNIEXPORT jobjectArray JNICALL
627 JVM_GetNestMembers(JNIEnv *env, jclass current);
628
629 /* Records - since JDK 16 */
630
631 JNIEXPORT jboolean JNICALL
632 JVM_IsRecord(JNIEnv *env, jclass cls);
633
634 JNIEXPORT jobjectArray JNICALL
635 JVM_GetRecordComponents(JNIEnv *env, jclass ofClass);
636
637 /* Sealed classes - since JDK 17 */
638
639 JNIEXPORT jobjectArray JNICALL
640 JVM_GetPermittedSubclasses(JNIEnv *env, jclass current);
641
642 /* The following two reflection routines are still needed due to startup time issues */
643 /*
644 * java.lang.reflect.Method
645 */
646 JNIEXPORT jobject JNICALL
647 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
648
649 /*
650 * java.lang.reflect.Constructor
651 */
652 JNIEXPORT jobject JNICALL
653 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
654
655 /*
656 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
657 */
658
659 JNIEXPORT jobject JNICALL
660 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
661
662 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
663 (JNIEnv *env, jobject unused, jobject jcpool);
664
665 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
666 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
667
668 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
669 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
670
671 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
672 (JNIEnv *env, jobject obj, jobject unused, jint index);
673
674 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
675 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
676
677 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
678 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
679
680 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
681 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
682
683 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
684 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
685
686 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
687 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
688
689 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
690 (JNIEnv *env, jobject obj, jobject unused, jint index);
691
692 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
693 (JNIEnv *env, jobject obj, jobject unused, jint index);
694
695 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
696 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
697
698 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
699 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
700
701 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
702 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
703
704 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
705 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
706
707 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
708 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
709
710 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
711 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
712
713 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
714 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
715
716 /*
717 * Parameter reflection
718 */
719
720 JNIEXPORT jobjectArray JNICALL
721 JVM_GetMethodParameters(JNIEnv *env, jobject method);
722
723 /*
724 * Ensure that code doing a stackwalk and using javaVFrame::locals() to
725 * get the value will see a materialized value and not a scalar-replaced
726 * null value.
727 */
728 #define JVM_EnsureMaterializedForStackWalk(env, value) \
729 do {} while(0) // Nothing to do. The fact that the value escaped
730 // through a native method is enough.
731 JNIEXPORT void JNICALL
732 JVM_EnsureMaterializedForStackWalk_func(JNIEnv* env, jobject vthread, jobject value);
733
734 /*
735 * Signal support, used to implement the shutdown sequence. Every VM must
736 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
737 * (^C) and the latter for external termination (kill, system shutdown, etc.).
738 * Other platform-dependent signal values may also be supported.
739 */
740
741 JNIEXPORT void * JNICALL
742 JVM_RegisterSignal(jint sig, void *handler);
743
744 JNIEXPORT jboolean JNICALL
745 JVM_RaiseSignal(jint sig);
746
747 JNIEXPORT jint JNICALL
748 JVM_FindSignal(const char *name);
749
750 /*
751 * Retrieve the assertion directives for the specified class.
752 */
753 JNIEXPORT jboolean JNICALL
754 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
755
756 /*
757 * Retrieve the assertion directives from the VM.
758 */
759 JNIEXPORT jobject JNICALL
760 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
761
762 /*
763 * java.lang.ref.Finalizer
764 */
765 JNIEXPORT void JNICALL
766 JVM_ReportFinalizationComplete(JNIEnv *env, jobject finalizee);
767
768 JNIEXPORT jboolean JNICALL
769 JVM_IsFinalizationEnabled(JNIEnv *env);
770
771 /*************************************************************************
772 PART 2: Support for the Verifier and Class File Format Checker
773 ************************************************************************/
774 /*
775 * Return the class name in UTF format. The result is valid
776 * until JVM_ReleaseUTf is called.
777 *
778 * The caller must treat the string as a constant and not modify it
779 * in any way.
780 */
781 JNIEXPORT const char * JNICALL
782 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
783
784 /*
785 * Returns the constant pool types in the buffer provided by "types."
786 */
787 JNIEXPORT void JNICALL
788 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
789
790 /*
791 * Returns the number of Constant Pool entries.
792 */
793 JNIEXPORT jint JNICALL
794 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
795
796 /*
797 * Returns the number of *declared* fields or methods.
798 */
799 JNIEXPORT jint JNICALL
800 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
801
802 JNIEXPORT jint JNICALL
803 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
804
805 /*
806 * Returns the CP indexes of exceptions raised by a given method.
807 * Places the result in the given buffer.
808 *
809 * The method is identified by method_index.
810 */
811 JNIEXPORT void JNICALL
812 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
813 unsigned short *exceptions);
814 /*
815 * Returns the number of exceptions raised by a given method.
816 * The method is identified by method_index.
817 */
818 JNIEXPORT jint JNICALL
819 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
820
821 /*
822 * Returns the byte code sequence of a given method.
823 * Places the result in the given buffer.
824 *
825 * The method is identified by method_index.
826 */
827 JNIEXPORT void JNICALL
828 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
829 unsigned char *code);
830
831 /*
832 * Returns the length of the byte code sequence of a given method.
833 * The method is identified by method_index.
834 */
835 JNIEXPORT jint JNICALL
836 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
837
838 /*
839 * A structure used to a capture exception table entry in a Java method.
840 */
841 typedef struct {
842 jint start_pc;
843 jint end_pc;
844 jint handler_pc;
845 jint catchType;
846 } JVM_ExceptionTableEntryType;
847
848 /*
849 * Returns the exception table entry at entry_index of a given method.
850 * Places the result in the given buffer.
851 *
852 * The method is identified by method_index.
853 */
854 JNIEXPORT void JNICALL
855 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
856 jint entry_index,
857 JVM_ExceptionTableEntryType *entry);
858
859 /*
860 * Returns the length of the exception table of a given method.
861 * The method is identified by method_index.
862 */
863 JNIEXPORT jint JNICALL
864 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
865
866 /*
867 * Returns the modifiers of a given field.
868 * The field is identified by field_index.
869 */
870 JNIEXPORT jint JNICALL
871 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
872
873 /*
874 * Returns the modifiers of a given method.
875 * The method is identified by method_index.
876 */
877 JNIEXPORT jint JNICALL
878 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
879
880 /*
881 * Returns the number of local variables of a given method.
882 * The method is identified by method_index.
883 */
884 JNIEXPORT jint JNICALL
885 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
886
887 /*
888 * Returns the number of arguments (including this pointer) of a given method.
889 * The method is identified by method_index.
890 */
891 JNIEXPORT jint JNICALL
892 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
893
894 /*
895 * Returns the maximum amount of stack (in words) used by a given method.
896 * The method is identified by method_index.
897 */
898 JNIEXPORT jint JNICALL
899 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
900
901 /*
902 * Is a given method a constructor.
903 * The method is identified by method_index.
904 */
905 JNIEXPORT jboolean JNICALL
906 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
907
908 /*
909 * Is the given method generated by the VM.
910 * The method is identified by method_index.
911 */
912 JNIEXPORT jboolean JNICALL
913 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
914
915 /*
916 * Returns the name of a given method in UTF format.
917 * The result remains valid until JVM_ReleaseUTF is called.
918 *
919 * The caller must treat the string as a constant and not modify it
920 * in any way.
921 */
922 JNIEXPORT const char * JNICALL
923 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
924
925 /*
926 * Returns the signature of a given method in UTF format.
927 * The result remains valid until JVM_ReleaseUTF is called.
928 *
929 * The caller must treat the string as a constant and not modify it
930 * in any way.
931 */
932 JNIEXPORT const char * JNICALL
933 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
934
935 /*
936 * Returns the name of the field referred to at a given constant pool
937 * index.
938 *
939 * The result is in UTF format and remains valid until JVM_ReleaseUTF
940 * is called.
941 *
942 * The caller must treat the string as a constant and not modify it
943 * in any way.
944 */
945 JNIEXPORT const char * JNICALL
946 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
947
948 /*
949 * Returns the name of the method referred to at a given constant pool
950 * index.
951 *
952 * The result is in UTF format and remains valid until JVM_ReleaseUTF
953 * is called.
954 *
955 * The caller must treat the string as a constant and not modify it
956 * in any way.
957 */
958 JNIEXPORT const char * JNICALL
959 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
960
961 /*
962 * Returns the signature of the method referred to at a given constant pool
963 * index.
964 *
965 * The result is in UTF format and remains valid until JVM_ReleaseUTF
966 * is called.
967 *
968 * The caller must treat the string as a constant and not modify it
969 * in any way.
970 */
971 JNIEXPORT const char * JNICALL
972 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
973
974 /*
975 * Returns the signature of the field referred to at a given constant pool
976 * index.
977 *
978 * The result is in UTF format and remains valid until JVM_ReleaseUTF
979 * is called.
980 *
981 * The caller must treat the string as a constant and not modify it
982 * in any way.
983 */
984 JNIEXPORT const char * JNICALL
985 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
986
987 /*
988 * Returns the class name referred to at a given constant pool 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_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
998
999 /*
1000 * Returns the class name referred to at a given constant pool index.
1001 *
1002 * The constant pool entry must refer to a CONSTANT_Fieldref.
1003 *
1004 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1005 * is called.
1006 *
1007 * The caller must treat the string as a constant and not modify it
1008 * in any way.
1009 */
1010 JNIEXPORT const char * JNICALL
1011 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
1012
1013 /*
1014 * Returns the class name referred to at a given constant pool index.
1015 *
1016 * The constant pool entry must refer to CONSTANT_Methodref or
1017 * CONSTANT_InterfaceMethodref.
1018 *
1019 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1020 * is called.
1021 *
1022 * The caller must treat the string as a constant and not modify it
1023 * in any way.
1024 */
1025 JNIEXPORT const char * JNICALL
1026 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1027
1028 /*
1029 * Returns the modifiers of a field in calledClass. The field is
1030 * referred to in class cb at constant pool entry index.
1031 *
1032 * The caller must treat the string as a constant and not modify it
1033 * in any way.
1034 *
1035 * Returns -1 if the field does not exist in calledClass.
1036 */
1037 JNIEXPORT jint JNICALL
1038 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1039
1040 /*
1041 * Returns the modifiers of a method in calledClass. The method is
1042 * referred to in class cb at constant pool entry index.
1043 *
1044 * Returns -1 if the method does not exist in calledClass.
1045 */
1046 JNIEXPORT jint JNICALL
1047 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1048
1049 /*
1050 * Releases the UTF string obtained from the VM.
1051 */
1052 JNIEXPORT void JNICALL
1053 JVM_ReleaseUTF(const char *utf);
1054
1055 /*
1056 * Compare if two classes are in the same package.
1057 */
1058 JNIEXPORT jboolean JNICALL
1059 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1060
1061
1062 /*************************************************************************
1063 PART 3: I/O and Network Support
1064 ************************************************************************/
1065
1066 /*
1067 * Convert a pathname into native format. This function does syntactic
1068 * cleanup, such as removing redundant separator characters. It modifies
1069 * the given pathname string in place.
1070 */
1071 JNIEXPORT char * JNICALL
1072 JVM_NativePath(char *);
1073
1074 JNIEXPORT void * JNICALL
1075 JVM_RawMonitorCreate(void);
1076
1077 JNIEXPORT void JNICALL
1078 JVM_RawMonitorDestroy(void *mon);
1079
1080 JNIEXPORT jint JNICALL
1081 JVM_RawMonitorEnter(void *mon);
1082
1083 JNIEXPORT void JNICALL
1084 JVM_RawMonitorExit(void *mon);
1085
1086 /*
1087 * java.lang.management support
1088 */
1089 JNIEXPORT void* JNICALL
1090 JVM_GetManagement(jint version);
1091
1092 /*
1093 * com.sun.tools.attach.VirtualMachine support
1094 *
1095 * Initialize the agent properties with the properties maintained in the VM.
1096 */
1097 JNIEXPORT jobject JNICALL
1098 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1099
1100 JNIEXPORT jstring JNICALL
1101 JVM_GetTemporaryDirectory(JNIEnv *env);
1102
1103 JNIEXPORT jarray JNICALL
1104 JVM_CopyOfSpecialArray(JNIEnv *env, jarray orig, jint from, jint to);
1105
1106 JNIEXPORT jarray JNICALL
1107 JVM_NewNullRestrictedNonAtomicArray(JNIEnv *env, jclass elmClass, jint len, jobject initVal);
1108
1109 JNIEXPORT jarray JNICALL
1110 JVM_NewNullRestrictedAtomicArray(JNIEnv *env, jclass elmClass, jint len, jobject initVal);
1111
1112 JNIEXPORT jarray JNICALL
1113 JVM_NewNullableAtomicArray(JNIEnv *env, jclass elmClass, jint len);
1114
1115 JNIEXPORT jboolean JNICALL
1116 JVM_IsFlatArray(JNIEnv *env, jobject obj);
1117
1118 JNIEXPORT jboolean JNICALL
1119 JVM_IsNullRestrictedArray(JNIEnv *env, jobject obj);
1120
1121 JNIEXPORT jboolean JNICALL
1122 JVM_IsAtomicArray(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_ */