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 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_IsContinuationsSupported(void);
179
180 JNIEXPORT jboolean JNICALL
181 JVM_IsForeignLinkerSupported(void);
182
183 JNIEXPORT jboolean JNICALL
184 JVM_IsStaticallyLinked(void);
185
186 JNIEXPORT void JNICALL
187 JVM_InitializeFromArchive(JNIEnv* env, jclass cls);
188
189 JNIEXPORT void JNICALL
190 JVM_RegisterLambdaProxyClassForArchiving(JNIEnv* env, jclass caller,
191 jstring interfaceMethodName,
192 jobject factoryType,
193 jobject interfaceMethodType,
194 jobject implementationMember,
195 jobject dynamicMethodType,
196 jclass lambdaProxyClass);
197
198 JNIEXPORT jclass JNICALL
199 JVM_LookupLambdaProxyClassFromArchive(JNIEnv* env, jclass caller,
200 jstring interfaceMethodName,
201 jobject factoryType,
202 jobject interfaceMethodType,
203 jobject implementationMember,
204 jobject dynamicMethodType);
205
206 JNIEXPORT jint JNICALL
207 JVM_GetCDSConfigStatus();
208
209 JNIEXPORT jlong JNICALL
210 JVM_GetRandomSeedForDumping();
211
212 JNIEXPORT void JNICALL
213 JVM_LogLambdaFormInvoker(JNIEnv* env, jstring line);
214
215 JNIEXPORT void JNICALL
216 JVM_DumpClassListToFile(JNIEnv* env, jstring fileName);
217
218 JNIEXPORT void JNICALL
219 JVM_DumpDynamicArchive(JNIEnv* env, jstring archiveName);
220
221 /*
222 * java.lang.Throwable
223 */
224 JNIEXPORT void JNICALL
225 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
226
227 /*
228 * java.lang.StackTraceElement
229 */
230 JNIEXPORT void JNICALL
231 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject backtrace, jint depth);
232
233 JNIEXPORT void JNICALL
234 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
235
236 /*
237 * java.lang.NullPointerException
238 */
239
240 JNIEXPORT jstring JNICALL
241 JVM_GetExtendedNPEMessage(JNIEnv *env, jthrowable throwable);
242
243 /*
244 * java.lang.StackWalker
245 */
246 enum {
247 JVM_STACKWALK_CLASS_INFO_ONLY = 0x2,
248 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20,
249 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100
250 };
251
252 JNIEXPORT void JNICALL
253 JVM_ExpandStackFrameInfo(JNIEnv *env, jobject obj);
254
255 JNIEXPORT jobject JNICALL
256 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jint mode,
257 jint skip_frames, jobject contScope, jobject cont,
258 jint buffer_size, jint start_index, jobjectArray frames);
259
260 JNIEXPORT jint JNICALL
261 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jint mode, jlong anchor,
262 jint last_batch_count, jint buffer_size, jint start_index,
263 jobjectArray frames);
264
265 JNIEXPORT void JNICALL
266 JVM_SetStackWalkContinuation(JNIEnv *env, jobject stackStream, jlong anchor, jobjectArray frames, jobject cont);
267
268 /*
269 * java.lang.Thread
270 */
271 JNIEXPORT void JNICALL
272 JVM_StartThread(JNIEnv *env, jobject thread);
273
274 JNIEXPORT void JNICALL
275 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
276
277 JNIEXPORT void JNICALL
278 JVM_Yield(JNIEnv *env, jclass threadClass);
279
280 JNIEXPORT void JNICALL
281 JVM_SleepNanos(JNIEnv *env, jclass threadClass, jlong nanos);
282
283 JNIEXPORT jobject JNICALL
284 JVM_CurrentCarrierThread(JNIEnv *env, jclass threadClass);
285
286 JNIEXPORT jobject JNICALL
287 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
288
289 JNIEXPORT void JNICALL
290 JVM_SetCurrentThread(JNIEnv *env, jobject thisThread, jobject theThread);
291
292 JNIEXPORT void JNICALL
293 JVM_SetCurrentLockId(JNIEnv* env, jclass threadClass, jlong tid);
294
295 JNIEXPORT void JNICALL
296 JVM_Interrupt(JNIEnv *env, jobject thread);
297
298 JNIEXPORT jboolean JNICALL
299 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
300
301 JNIEXPORT jobject JNICALL
302 JVM_GetStackTrace(JNIEnv *env, jobject thread);
303
304 JNIEXPORT jobjectArray JNICALL
305 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
306
307 JNIEXPORT void JNICALL
308 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
309
310 /* getStackTrace() and getAllStackTraces() method */
311 JNIEXPORT jobjectArray JNICALL
312 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
313
314 JNIEXPORT jobject JNICALL
315 JVM_ScopedValueCache(JNIEnv *env, jclass threadClass);
316
317 JNIEXPORT void JNICALL
318 JVM_SetScopedValueCache(JNIEnv *env, jclass threadClass, jobject theCache);
319
320 JNIEXPORT jobject JNICALL
321 JVM_FindScopedValueBindings(JNIEnv *env, jclass threadClass);
322
323 JNIEXPORT jlong JNICALL
324 JVM_GetNextThreadIdOffset(JNIEnv *env, jclass threadClass);
325
326 /*
327 * jdk.internal.vm.Continuation
328 */
329 JNIEXPORT void JNICALL
330 JVM_RegisterContinuationMethods(JNIEnv *env, jclass cls);
331
332 /*
333 * java.lang.SecurityManager
334 */
335 JNIEXPORT jobjectArray JNICALL
336 JVM_GetClassContext(JNIEnv *env);
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 * java.security.*
731 */
732
733 JNIEXPORT jobject JNICALL
734 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
735
736 /*
737 * Ensure that code doing a stackwalk and using javaVFrame::locals() to
738 * get the value will see a materialized value and not a scalar-replaced
739 * null value.
740 */
741 #define JVM_EnsureMaterializedForStackWalk(env, value) \
742 do {} while(0) // Nothing to do. The fact that the value escaped
743 // through a native method is enough.
744 JNIEXPORT void JNICALL
745 JVM_EnsureMaterializedForStackWalk_func(JNIEnv* env, jobject vthread, jobject value);
746
747 JNIEXPORT jobject JNICALL
748 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
749
750 /*
751 * Signal support, used to implement the shutdown sequence. Every VM must
752 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
753 * (^C) and the latter for external termination (kill, system shutdown, etc.).
754 * Other platform-dependent signal values may also be supported.
755 */
756
757 JNIEXPORT void * JNICALL
758 JVM_RegisterSignal(jint sig, void *handler);
759
760 JNIEXPORT jboolean JNICALL
761 JVM_RaiseSignal(jint sig);
762
763 JNIEXPORT jint JNICALL
764 JVM_FindSignal(const char *name);
765
766 /*
767 * Retrieve the assertion directives for the specified class.
768 */
769 JNIEXPORT jboolean JNICALL
770 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
771
772 /*
773 * Retrieve the assertion directives from the VM.
774 */
775 JNIEXPORT jobject JNICALL
776 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
777
778 /*
779 * java.lang.ref.Finalizer
780 */
781 JNIEXPORT void JNICALL
782 JVM_ReportFinalizationComplete(JNIEnv *env, jobject finalizee);
783
784 JNIEXPORT jboolean JNICALL
785 JVM_IsFinalizationEnabled(JNIEnv *env);
786
787 /*************************************************************************
788 PART 2: Support for the Verifier and Class File Format Checker
789 ************************************************************************/
790 /*
791 * Return the class name in UTF format. The result is valid
792 * until JVM_ReleaseUTf is called.
793 *
794 * The caller must treat the string as a constant and not modify it
795 * in any way.
796 */
797 JNIEXPORT const char * JNICALL
798 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
799
800 /*
801 * Returns the constant pool types in the buffer provided by "types."
802 */
803 JNIEXPORT void JNICALL
804 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
805
806 /*
807 * Returns the number of Constant Pool entries.
808 */
809 JNIEXPORT jint JNICALL
810 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
811
812 /*
813 * Returns the number of *declared* fields or methods.
814 */
815 JNIEXPORT jint JNICALL
816 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
817
818 JNIEXPORT jint JNICALL
819 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
820
821 /*
822 * Returns the CP indexes of exceptions raised by 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_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
829 unsigned short *exceptions);
830 /*
831 * Returns the number of exceptions raised by a given method.
832 * The method is identified by method_index.
833 */
834 JNIEXPORT jint JNICALL
835 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
836
837 /*
838 * Returns the byte code sequence of a given method.
839 * Places the result in the given buffer.
840 *
841 * The method is identified by method_index.
842 */
843 JNIEXPORT void JNICALL
844 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
845 unsigned char *code);
846
847 /*
848 * Returns the length of the byte code sequence of a given method.
849 * The method is identified by method_index.
850 */
851 JNIEXPORT jint JNICALL
852 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
853
854 /*
855 * A structure used to a capture exception table entry in a Java method.
856 */
857 typedef struct {
858 jint start_pc;
859 jint end_pc;
860 jint handler_pc;
861 jint catchType;
862 } JVM_ExceptionTableEntryType;
863
864 /*
865 * Returns the exception table entry at entry_index of a given method.
866 * Places the result in the given buffer.
867 *
868 * The method is identified by method_index.
869 */
870 JNIEXPORT void JNICALL
871 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
872 jint entry_index,
873 JVM_ExceptionTableEntryType *entry);
874
875 /*
876 * Returns the length of the exception table of a given method.
877 * The method is identified by method_index.
878 */
879 JNIEXPORT jint JNICALL
880 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
881
882 /*
883 * Returns the modifiers of a given field.
884 * The field is identified by field_index.
885 */
886 JNIEXPORT jint JNICALL
887 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
888
889 /*
890 * Returns the modifiers of a given method.
891 * The method is identified by method_index.
892 */
893 JNIEXPORT jint JNICALL
894 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
895
896 /*
897 * Returns the number of local variables of a given method.
898 * The method is identified by method_index.
899 */
900 JNIEXPORT jint JNICALL
901 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
902
903 /*
904 * Returns the number of arguments (including this pointer) of a given method.
905 * The method is identified by method_index.
906 */
907 JNIEXPORT jint JNICALL
908 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
909
910 /*
911 * Returns the maximum amount of stack (in words) used by a given method.
912 * The method is identified by method_index.
913 */
914 JNIEXPORT jint JNICALL
915 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
916
917 /*
918 * Is a given method a constructor.
919 * The method is identified by method_index.
920 */
921 JNIEXPORT jboolean JNICALL
922 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
923
924 /*
925 * Is the given method generated by the VM.
926 * The method is identified by method_index.
927 */
928 JNIEXPORT jboolean JNICALL
929 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
930
931 /*
932 * Returns the name 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_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
940
941 /*
942 * Returns the signature of a given method in UTF format.
943 * The result remains valid until JVM_ReleaseUTF is called.
944 *
945 * The caller must treat the string as a constant and not modify it
946 * in any way.
947 */
948 JNIEXPORT const char * JNICALL
949 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
950
951 /*
952 * Returns the name of the field referred to at a given constant pool
953 * index.
954 *
955 * The result is in UTF format and remains valid until JVM_ReleaseUTF
956 * is called.
957 *
958 * The caller must treat the string as a constant and not modify it
959 * in any way.
960 */
961 JNIEXPORT const char * JNICALL
962 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
963
964 /*
965 * Returns the name of the method referred to at a given constant pool
966 * index.
967 *
968 * The result is in UTF format and remains valid until JVM_ReleaseUTF
969 * is called.
970 *
971 * The caller must treat the string as a constant and not modify it
972 * in any way.
973 */
974 JNIEXPORT const char * JNICALL
975 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
976
977 /*
978 * Returns the signature of the method referred to at a given constant pool
979 * index.
980 *
981 * The result is in UTF format and remains valid until JVM_ReleaseUTF
982 * is called.
983 *
984 * The caller must treat the string as a constant and not modify it
985 * in any way.
986 */
987 JNIEXPORT const char * JNICALL
988 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
989
990 /*
991 * Returns the signature of the field referred to at a given constant pool
992 * index.
993 *
994 * The result is in UTF format and remains valid until JVM_ReleaseUTF
995 * is called.
996 *
997 * The caller must treat the string as a constant and not modify it
998 * in any way.
999 */
1000 JNIEXPORT const char * JNICALL
1001 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
1002
1003 /*
1004 * Returns the class name referred to at a given constant pool index.
1005 *
1006 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1007 * is called.
1008 *
1009 * The caller must treat the string as a constant and not modify it
1010 * in any way.
1011 */
1012 JNIEXPORT const char * JNICALL
1013 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
1014
1015 /*
1016 * Returns the class name referred to at a given constant pool index.
1017 *
1018 * The constant pool entry must refer to a CONSTANT_Fieldref.
1019 *
1020 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1021 * is called.
1022 *
1023 * The caller must treat the string as a constant and not modify it
1024 * in any way.
1025 */
1026 JNIEXPORT const char * JNICALL
1027 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
1028
1029 /*
1030 * Returns the class name referred to at a given constant pool index.
1031 *
1032 * The constant pool entry must refer to CONSTANT_Methodref or
1033 * CONSTANT_InterfaceMethodref.
1034 *
1035 * The result is in UTF format and remains valid until JVM_ReleaseUTF
1036 * is called.
1037 *
1038 * The caller must treat the string as a constant and not modify it
1039 * in any way.
1040 */
1041 JNIEXPORT const char * JNICALL
1042 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1043
1044 /*
1045 * Returns the modifiers of a field in calledClass. The field is
1046 * referred to in class cb at constant pool entry index.
1047 *
1048 * The caller must treat the string as a constant and not modify it
1049 * in any way.
1050 *
1051 * Returns -1 if the field does not exist in calledClass.
1052 */
1053 JNIEXPORT jint JNICALL
1054 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1055
1056 /*
1057 * Returns the modifiers of a method in calledClass. The method is
1058 * referred to in class cb at constant pool entry index.
1059 *
1060 * Returns -1 if the method does not exist in calledClass.
1061 */
1062 JNIEXPORT jint JNICALL
1063 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1064
1065 /*
1066 * Releases the UTF string obtained from the VM.
1067 */
1068 JNIEXPORT void JNICALL
1069 JVM_ReleaseUTF(const char *utf);
1070
1071 /*
1072 * Compare if two classes are in the same package.
1073 */
1074 JNIEXPORT jboolean JNICALL
1075 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1076
1077
1078 /*************************************************************************
1079 PART 3: I/O and Network Support
1080 ************************************************************************/
1081
1082 /*
1083 * Convert a pathname into native format. This function does syntactic
1084 * cleanup, such as removing redundant separator characters. It modifies
1085 * the given pathname string in place.
1086 */
1087 JNIEXPORT char * JNICALL
1088 JVM_NativePath(char *);
1089
1090 JNIEXPORT void * JNICALL
1091 JVM_RawMonitorCreate(void);
1092
1093 JNIEXPORT void JNICALL
1094 JVM_RawMonitorDestroy(void *mon);
1095
1096 JNIEXPORT jint JNICALL
1097 JVM_RawMonitorEnter(void *mon);
1098
1099 JNIEXPORT void JNICALL
1100 JVM_RawMonitorExit(void *mon);
1101
1102 /*
1103 * java.lang.management support
1104 */
1105 JNIEXPORT void* JNICALL
1106 JVM_GetManagement(jint version);
1107
1108 /*
1109 * com.sun.tools.attach.VirtualMachine support
1110 *
1111 * Initialize the agent properties with the properties maintained in the VM.
1112 */
1113 JNIEXPORT jobject JNICALL
1114 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1115
1116 JNIEXPORT jstring JNICALL
1117 JVM_GetTemporaryDirectory(JNIEnv *env);
1118
1119 /* Generics reflection support.
1120 *
1121 * Returns information about the given class's EnclosingMethod
1122 * attribute, if present, or null if the class had no enclosing
1123 * method.
1124 *
1125 * If non-null, the returned array contains three elements. Element 0
1126 * is the java.lang.Class of which the enclosing method is a member,
1127 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1128 * method's name and descriptor, respectively.
1129 */
1130 JNIEXPORT jobjectArray JNICALL
1131 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1132
1133 /*
1134 * Virtual thread support.
1135 */
1136 JNIEXPORT void JNICALL
1137 JVM_VirtualThreadStart(JNIEnv* env, jobject vthread);
1138
1139 JNIEXPORT void JNICALL
1140 JVM_VirtualThreadEnd(JNIEnv* env, jobject vthread);
1141
1142 JNIEXPORT void JNICALL
1143 JVM_VirtualThreadMount(JNIEnv* env, jobject vthread, jboolean hide);
1144
1145 JNIEXPORT void JNICALL
1146 JVM_VirtualThreadUnmount(JNIEnv* env, jobject vthread, jboolean hide);
1147
1148 JNIEXPORT void JNICALL
1149 JVM_VirtualThreadHideFrames(JNIEnv* env, jclass clazz, jboolean hide);
1150
1151 JNIEXPORT void JNICALL
1152 JVM_VirtualThreadDisableSuspend(JNIEnv* env, jclass clazz, jboolean enter);
1153
1154 JNIEXPORT void JNICALL
1155 JVM_VirtualThreadPinnedEvent(jint reasonCode, jstring reasonString);
1156
1157 JNIEXPORT jobject JNICALL
1158 JVM_TakeVirtualThreadListToUnblock(JNIEnv* env, jclass ignored);
1159
1160 /*
1161 * Core reflection support.
1162 */
1163 JNIEXPORT jint JNICALL
1164 JVM_GetClassFileVersion(JNIEnv *env, jclass current);
1165
1166 /*
1167 * Return JNI_TRUE if warnings are printed when agents are dynamically loaded.
1168 */
1169 JNIEXPORT jboolean JNICALL
1170 JVM_PrintWarningAtDynamicAgentLoad(void);
1171
1172 /*
1173 * This structure is used by the launcher to get the default thread
1174 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1175 * version of 1.1. As it is not supported otherwise, it has been removed
1176 * from jni.h
1177 */
1178 typedef struct JDK1_1InitArgs {
1179 jint version;
1180
1181 char **properties;
1182 jint checkSource;
1183 jint nativeStackSize;
1184 jint javaStackSize;
1185 jint minHeapSize;
1186 jint maxHeapSize;
1187 jint verifyMode;
1188 char *classpath;
1189
1190 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1191 void (JNICALL *exit)(jint code);
1192 void (JNICALL *abort)(void);
1193
1194 jint enableClassGC;
1195 jint enableVerboseGC;
1196 jint disableAsyncGC;
1197 jint verbose;
1198 jboolean debugging;
1199 jint debugPort;
1200 } JDK1_1InitArgs;
1201
1202
1203 #ifdef __cplusplus
1204 } /* extern "C" */
1205
1206 #endif /* __cplusplus */
1207
1208 #endif /* !_JAVASOFT_JVM_H_ */