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