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 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.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 jboolean JNICALL
360 JVM_ReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
361
362 JNIEXPORT void JNICALL
363 JVM_ReferenceClear(JNIEnv *env, jobject ref);
364
365 /*
366 * java.lang.ref.PhantomReference
367 */
368 JNIEXPORT jboolean JNICALL
369 JVM_PhantomReferenceRefersTo(JNIEnv *env, jobject ref, jobject o);
370
371 /*
372 * java.io.ObjectInputStream
373 */
374 JNIEXPORT jobject JNICALL
375 JVM_LatestUserDefinedLoader(JNIEnv *env);
376
377 /*
378 * java.lang.reflect.Array
379 */
380 JNIEXPORT jint JNICALL
381 JVM_GetArrayLength(JNIEnv *env, jobject arr);
382
383 JNIEXPORT jobject JNICALL
384 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
385
386 JNIEXPORT jvalue JNICALL
387 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
388
389 JNIEXPORT void JNICALL
390 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
391
392 JNIEXPORT void JNICALL
393 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
394 unsigned char vCode);
395
396 JNIEXPORT jobject JNICALL
397 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
398
399 JNIEXPORT jobject JNICALL
400 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
401
402
403 /*
404 * Returns the immediate caller class of the native method invoking
405 * JVM_GetCallerClass. The Method.invoke and other frames due to
406 * reflection machinery are skipped.
407 *
408 * The caller is expected to be marked with
409 * jdk.internal.reflect.CallerSensitive. The JVM will throw an
410 * error if it is not marked properly.
411 */
412 JNIEXPORT jclass JNICALL
413 JVM_GetCallerClass(JNIEnv *env);
414
415
416 /*
417 * Find primitive classes
418 * utf: class name
419 */
420 JNIEXPORT jclass JNICALL
421 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
422
423
424 /*
425 * Find a class from a boot class loader. Returns null if class not found.
426 */
427 JNIEXPORT jclass JNICALL
428 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
429
430 /*
431 * Find a class from a given class loader. Throws ClassNotFoundException.
432 * name: name of class
433 * init: whether initialization is done
434 * loader: class loader to look up the class. This may not be the same as the caller's
435 * class loader.
436 * caller: initiating class. The initiating class may be null when a security
437 * manager is not installed.
438 */
439 JNIEXPORT jclass JNICALL
440 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
441 jobject loader, jclass caller);
442
443 /*
444 * Find a class from a given class.
445 */
446 JNIEXPORT jclass JNICALL
447 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
448 jclass from);
449
450 /* Find a loaded class cached by the VM */
451 JNIEXPORT jclass JNICALL
452 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
453
454 /* Define a class */
455 JNIEXPORT jclass JNICALL
456 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
457 jsize len, jobject pd);
458
459 /* Define a class with a source (added in JDK1.5) */
460 JNIEXPORT jclass JNICALL
461 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
462 const jbyte *buf, jsize len, jobject pd,
463 const char *source);
464
465 /*
466 * Define a class with the specified lookup class.
467 * lookup: Lookup class
468 * name: the name of the class
469 * buf: class bytes
470 * len: length of class bytes
471 * pd: protection domain
472 * init: initialize the class
473 * flags: properties of the class
474 * classData: private static pre-initialized field; may be null
475 */
476 JNIEXPORT jclass JNICALL
477 JVM_LookupDefineClass(JNIEnv *env, jclass lookup, const char *name, const jbyte *buf,
478 jsize len, jobject pd, jboolean init, int flags, jobject classData);
479
480 /*
481 * Module support functions
482 */
483
484 /*
485 * Define a module with the specified packages and bind the module to the
486 * given class loader.
487 * module: module to define
488 * is_open: specifies if module is open (currently ignored)
489 * version: the module version
490 * location: the module location
491 * packages: array of packages in the module
492 */
493 JNIEXPORT void JNICALL
494 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
495 jstring location, jobjectArray packages);
496
497 /*
498 * Set the boot loader's unnamed module.
499 * module: boot loader's unnamed module
500 */
501 JNIEXPORT void JNICALL
502 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
503
504 /*
505 * Do a qualified export of a package.
506 * from_module: module containing the package to export
507 * package: name of the package to export
508 * to_module: module to export the package to
509 */
510 JNIEXPORT void JNICALL
511 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
512
513 /*
514 * Do an export of a package to all unnamed modules.
515 * from_module: module containing the package to export
516 * package: name of the package to export to all unnamed modules
517 */
518 JNIEXPORT void JNICALL
519 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
520
521 /*
522 * Do an unqualified export of a package.
523 * from_module: module containing the package to export
524 * package: name of the package to export
525 */
526 JNIEXPORT void JNICALL
527 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
528
529 /*
530 * Add a module to the list of modules that a given module can read.
531 * from_module: module requesting read access
532 * source_module: module that from_module wants to read
533 */
534 JNIEXPORT void JNICALL
535 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
536
537 /*
538 * Define all modules that have been stored in the CDS archived heap.
539 * platform_loader: the built-in platform class loader
540 * system_loader: the built-in system class loader
541 */
542 JNIEXPORT void JNICALL
543 JVM_DefineArchivedModules(JNIEnv *env, jobject platform_loader, jobject system_loader);
544
545 /*
546 * Reflection support functions
547 */
548
549 JNIEXPORT jstring JNICALL
550 JVM_InitClassName(JNIEnv *env, jclass cls);
551
552 JNIEXPORT jobjectArray JNICALL
553 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
554
555 JNIEXPORT jboolean JNICALL
556 JVM_IsInterface(JNIEnv *env, jclass cls);
557
558 JNIEXPORT jobject JNICALL
559 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
560
561 JNIEXPORT jboolean JNICALL
562 JVM_IsArrayClass(JNIEnv *env, jclass cls);
563
564 JNIEXPORT jboolean JNICALL
565 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
566
567 JNIEXPORT jboolean JNICALL
568 JVM_IsHiddenClass(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 /* Generics reflection support.
1110 *
1111 * Returns information about the given class's EnclosingMethod
1112 * attribute, if present, or null if the class had no enclosing
1113 * method.
1114 *
1115 * If non-null, the returned array contains three elements. Element 0
1116 * is the java.lang.Class of which the enclosing method is a member,
1117 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1118 * method's name and descriptor, respectively.
1119 */
1120 JNIEXPORT jobjectArray JNICALL
1121 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1122
1123 /*
1124 * Virtual thread support.
1125 */
1126 JNIEXPORT void JNICALL
1127 JVM_VirtualThreadStart(JNIEnv* env, jobject vthread);
1128
1129 JNIEXPORT void JNICALL
1130 JVM_VirtualThreadEnd(JNIEnv* env, jobject vthread);
1131
1132 JNIEXPORT void JNICALL
1133 JVM_VirtualThreadMount(JNIEnv* env, jobject vthread, jboolean hide);
1134
1135 JNIEXPORT void JNICALL
1136 JVM_VirtualThreadUnmount(JNIEnv* env, jobject vthread, jboolean hide);
1137
1138 JNIEXPORT void JNICALL
1139 JVM_VirtualThreadDisableSuspend(JNIEnv* env, jclass clazz, jboolean enter);
1140
1141 JNIEXPORT void JNICALL
1142 JVM_VirtualThreadPinnedEvent(JNIEnv* env, jclass clazz, jstring op);
1143
1144 JNIEXPORT jobject JNICALL
1145 JVM_TakeVirtualThreadListToUnblock(JNIEnv* env, jclass ignored);
1146
1147 /*
1148 * Core reflection support.
1149 */
1150 JNIEXPORT jint JNICALL
1151 JVM_GetClassFileVersion(JNIEnv *env, jclass current);
1152
1153 /*
1154 * Return JNI_TRUE if warnings are printed when agents are dynamically loaded.
1155 */
1156 JNIEXPORT jboolean JNICALL
1157 JVM_PrintWarningAtDynamicAgentLoad(void);
1158
1159 /*
1160 * This structure is used by the launcher to get the default thread
1161 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1162 * version of 1.1. As it is not supported otherwise, it has been removed
1163 * from jni.h
1164 */
1165 typedef struct JDK1_1InitArgs {
1166 jint version;
1167
1168 char **properties;
1169 jint checkSource;
1170 jint nativeStackSize;
1171 jint javaStackSize;
1172 jint minHeapSize;
1173 jint maxHeapSize;
1174 jint verifyMode;
1175 char *classpath;
1176
1177 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1178 void (JNICALL *exit)(jint code);
1179 void (JNICALL *abort)(void);
1180
1181 jint enableClassGC;
1182 jint enableVerboseGC;
1183 jint disableAsyncGC;
1184 jint verbose;
1185 jboolean debugging;
1186 jint debugPort;
1187 } JDK1_1InitArgs;
1188
1189
1190 #ifdef __cplusplus
1191 } /* extern "C" */
1192
1193 #endif /* __cplusplus */
1194
1195 #endif /* !_JAVASOFT_JVM_H_ */