1 /*
2 * Copyright (c) 1997, 2016, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_PRIMS_JVM_H
26 #define SHARE_VM_PRIMS_JVM_H
27
28 #include "prims/jni.h"
29 #include "utilities/macros.hpp"
30
31 #include OS_HEADER_H(jvm)
32
33 #ifndef _JAVASOFT_JVM_H_
34 #define _JAVASOFT_JVM_H_
35
36 // HotSpot integration note:
37 //
38 // This file and jvm.h used with the JDK are identical,
39 // except for the three includes removed below
40
41 // #include <sys/stat.h>
42 // #include "jni.h"
43 // #include "jvm_md.h"
44
45
46 #ifdef __cplusplus
47 extern "C" {
48 #endif
49
50 /*
51 * This file contains additional functions exported from the VM.
52 * These functions are complementary to the standard JNI support.
53 * There are three parts to this file:
54 *
55 * First, this file contains the VM-related functions needed by native
56 * libraries in the standard Java API. For example, the java.lang.Object
57 * class needs VM-level functions that wait for and notify monitors.
58 *
59 * Second, this file contains the functions and constant definitions
60 * needed by the byte code verifier and class file format checker.
61 * These functions allow the verifier and format checker to be written
62 * in a VM-independent way.
63 *
64 * Third, this file contains various I/O and nerwork operations needed
65 * by the standard Java I/O and network APIs.
66 */
67
68 /*
69 * Bump the version number when either of the following happens:
70 *
71 * 1. There is a change in JVM_* functions.
72 *
73 * 2. There is a change in the contract between VM and Java classes.
74 * For example, if the VM relies on a new private field in Thread
75 * class.
76 */
77
78 #define JVM_INTERFACE_VERSION 5
79
80 JNIEXPORT jobjectArray JNICALL
81 JVM_GetMethodParameters(JNIEnv *env, jobject method);
82
83 JNIEXPORT jint JNICALL
84 JVM_GetInterfaceVersion(void);
85
86 /*************************************************************************
87 PART 1: Functions for Native Libraries
88 ************************************************************************/
89 /*
90 * java.lang.Object
91 */
92 JNIEXPORT jint JNICALL
93 JVM_IHashCode(JNIEnv *env, jobject obj);
94
95 JNIEXPORT void JNICALL
96 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
97
98 JNIEXPORT void JNICALL
99 JVM_MonitorNotify(JNIEnv *env, jobject obj);
100
101 JNIEXPORT void JNICALL
102 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
103
104 JNIEXPORT jobject JNICALL
105 JVM_Clone(JNIEnv *env, jobject obj);
106
107 /*
108 * java.lang.String
109 */
110 JNIEXPORT jstring JNICALL
111 JVM_InternString(JNIEnv *env, jstring str);
112
113 /*
114 * java.lang.System
115 */
116 JNIEXPORT jlong JNICALL
117 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
118
119 JNIEXPORT jlong JNICALL
120 JVM_NanoTime(JNIEnv *env, jclass ignored);
121
122 JNIEXPORT jlong JNICALL
123 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);
124
125 JNIEXPORT void JNICALL
126 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
127 jobject dst, jint dst_pos, jint length);
128
129 JNIEXPORT jobject JNICALL
130 JVM_InitProperties(JNIEnv *env, jobject p);
131
132 /*
133 * java.lang.Runtime
134 */
135
136 JNIEXPORT void JNICALL
137 JVM_Halt(jint code);
138
139 JNIEXPORT void JNICALL
140 JVM_GC(void);
141
142 /* Returns the number of real-time milliseconds that have elapsed since the
143 * least-recently-inspected heap object was last inspected by the garbage
144 * collector.
145 *
146 * For simple stop-the-world collectors this value is just the time
147 * since the most recent collection. For generational collectors it is the
148 * time since the oldest generation was most recently collected. Other
149 * collectors are free to return a pessimistic estimate of the elapsed time, or
150 * simply the time since the last full collection was performed.
151 *
152 * Note that in the presence of reference objects, a given object that is no
153 * longer strongly reachable may have to be inspected multiple times before it
154 * can be reclaimed.
155 */
156 JNIEXPORT jlong JNICALL
157 JVM_MaxObjectInspectionAge(void);
158
159 JNIEXPORT jlong JNICALL
160 JVM_TotalMemory(void);
161
162 JNIEXPORT jlong JNICALL
163 JVM_FreeMemory(void);
164
165 JNIEXPORT jlong JNICALL
166 JVM_MaxMemory(void);
167
168 JNIEXPORT jint JNICALL
169 JVM_ActiveProcessorCount(void);
170
171 JNIEXPORT void * JNICALL
172 JVM_LoadLibrary(const char *name);
173
174 JNIEXPORT void JNICALL
175 JVM_UnloadLibrary(void * handle);
176
177 JNIEXPORT void * JNICALL
178 JVM_FindLibraryEntry(void *handle, const char *name);
179
180 JNIEXPORT jboolean JNICALL
181 JVM_IsSupportedJNIVersion(jint version);
182
183 JNIEXPORT jobjectArray JNICALL
184 JVM_GetVmArguments(JNIEnv *env);
185
186 /*
187 * java.lang.Throwable
188 */
189 JNIEXPORT void JNICALL
190 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
191
192 /*
193 * java.lang.StackTraceElement
194 */
195 JNIEXPORT void JNICALL
196 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);
197
198 JNIEXPORT void JNICALL
199 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
200
201 /*
202 * java.lang.StackWalker
203 */
204 enum {
205 JVM_STACKWALK_FILL_CLASS_REFS_ONLY = 0x02,
206 JVM_STACKWALK_GET_CALLER_CLASS = 0x04,
207 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20,
208 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100
209 };
210
211 JNIEXPORT jobject JNICALL
212 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
213 jint skip_frames, jint frame_count, jint start_index,
214 jobjectArray frames);
215
216 JNIEXPORT jint JNICALL
217 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
218 jint frame_count, jint start_index,
219 jobjectArray frames);
220
221 /*
222 * java.lang.Thread
223 */
224 JNIEXPORT void JNICALL
225 JVM_StartThread(JNIEnv *env, jobject thread);
226
227 JNIEXPORT void JNICALL
228 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
229
230 JNIEXPORT jboolean JNICALL
231 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
232
233 JNIEXPORT void JNICALL
234 JVM_SuspendThread(JNIEnv *env, jobject thread);
235
236 JNIEXPORT void JNICALL
237 JVM_ResumeThread(JNIEnv *env, jobject thread);
238
239 JNIEXPORT void JNICALL
240 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
241
242 JNIEXPORT void JNICALL
243 JVM_Yield(JNIEnv *env, jclass threadClass);
244
245 JNIEXPORT void JNICALL
246 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
247
248 JNIEXPORT jobject JNICALL
249 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
250
251 JNIEXPORT jint JNICALL
252 JVM_CountStackFrames(JNIEnv *env, jobject thread);
253
254 JNIEXPORT void JNICALL
255 JVM_Interrupt(JNIEnv *env, jobject thread);
256
257 JNIEXPORT jboolean JNICALL
258 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
259
260 JNIEXPORT jboolean JNICALL
261 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
262
263 JNIEXPORT void JNICALL
264 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
265
266 JNIEXPORT jobjectArray JNICALL
267 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
268
269 JNIEXPORT void JNICALL
270 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
271
272 /* getStackTrace() and getAllStackTraces() method */
273 JNIEXPORT jobjectArray JNICALL
274 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
275
276 /*
277 * java.lang.SecurityManager
278 */
279 JNIEXPORT jclass JNICALL
280 JVM_CurrentLoadedClass(JNIEnv *env);
281
282 JNIEXPORT jobject JNICALL
283 JVM_CurrentClassLoader(JNIEnv *env);
284
285 JNIEXPORT jobjectArray JNICALL
286 JVM_GetClassContext(JNIEnv *env);
287
288 JNIEXPORT jint JNICALL
289 JVM_ClassDepth(JNIEnv *env, jstring name);
290
291 JNIEXPORT jint JNICALL
292 JVM_ClassLoaderDepth(JNIEnv *env);
293
294 /*
295 * java.lang.Package
296 */
297 JNIEXPORT jstring JNICALL
298 JVM_GetSystemPackage(JNIEnv *env, jstring name);
299
300 JNIEXPORT jobjectArray JNICALL
301 JVM_GetSystemPackages(JNIEnv *env);
302
303 /*
304 * java.lang.ref.Reference
305 */
306 JNIEXPORT jobject JNICALL
307 JVM_GetAndClearReferencePendingList(JNIEnv *env);
308
309 JNIEXPORT jboolean JNICALL
310 JVM_HasReferencePendingList(JNIEnv *env);
311
312 JNIEXPORT void JNICALL
313 JVM_WaitForReferencePendingList(JNIEnv *env);
314
315 /*
316 * java.io.ObjectInputStream
317 */
318 JNIEXPORT jobject JNICALL
319 JVM_LatestUserDefinedLoader(JNIEnv *env);
320
321 /*
322 * java.lang.reflect.Array
323 */
324 JNIEXPORT jint JNICALL
325 JVM_GetArrayLength(JNIEnv *env, jobject arr);
326
327 JNIEXPORT jobject JNICALL
328 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
329
330 JNIEXPORT jvalue JNICALL
331 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
332
333 JNIEXPORT void JNICALL
334 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
335
336 JNIEXPORT void JNICALL
337 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
338 unsigned char vCode);
339
340 JNIEXPORT jobject JNICALL
341 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
342
343 JNIEXPORT jobject JNICALL
344 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
345
346 /*
347 * java.lang.Class and java.lang.ClassLoader
348 */
349
350 #define JVM_CALLER_DEPTH -1
351
352 /*
353 * Returns the class in which the code invoking the native method
354 * belongs.
355 *
356 * Note that in JDK 1.1, native methods did not create a frame.
357 * In 1.2, they do. Therefore native methods like Class.forName
358 * can no longer look at the current frame for the caller class.
359 */
360 JNIEXPORT jclass JNICALL
361 JVM_GetCallerClass(JNIEnv *env, int n);
362
363 /*
364 * Find primitive classes
365 * utf: class name
366 */
367 JNIEXPORT jclass JNICALL
368 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
369
370 /*
371 * Find a class from a boot class loader. Returns NULL if class not found.
372 */
373 JNIEXPORT jclass JNICALL
374 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
375
376 /*
377 * Find a class from a given class loader. Throws ClassNotFoundException.
378 * name: name of class
379 * init: whether initialization is done
380 * loader: class loader to look up the class. This may not be the same as the caller's
381 * class loader.
382 * caller: initiating class. The initiating class may be null when a security
383 * manager is not installed.
384 */
385 JNIEXPORT jclass JNICALL
386 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
387 jobject loader, jclass caller);
388
389 /*
390 * Find a class from a given class.
391 */
392 JNIEXPORT jclass JNICALL
393 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
394 jclass from);
395
396 /* Find a loaded class cached by the VM */
397 JNIEXPORT jclass JNICALL
398 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
399
400 /* Define a class */
401 JNIEXPORT jclass JNICALL
402 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
403 jsize len, jobject pd);
404
405 /* Define a class with a source (added in JDK1.5) */
406 JNIEXPORT jclass JNICALL
407 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
408 const jbyte *buf, jsize len, jobject pd,
409 const char *source);
410
411 /*
412 * Module support funcions
413 */
414
415 JNIEXPORT void JNICALL
416 JVM_DefineModule(JNIEnv *env, jobject module, jstring version, jstring location,
417 jobjectArray packages);
418
419 JNIEXPORT void JNICALL
420 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
421
422 JNIEXPORT void JNICALL
423 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
424
425 JNIEXPORT void JNICALL
426 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
427
428 JNIEXPORT void JNICALL
429 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
430
431 JNIEXPORT void JNICALL
432 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
433
434 JNIEXPORT jboolean JNICALL
435 JVM_CanReadModule(JNIEnv *env, jobject asking_module, jobject source_module);
436
437 JNIEXPORT jboolean JNICALL
438 JVM_IsExportedToModule(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
439
440 JNIEXPORT void JNICALL
441 JVM_AddModulePackage(JNIEnv* env, jobject module, jstring package);
442
443 JNIEXPORT jobject JNICALL
444 JVM_GetModuleByPackageName(JNIEnv* env, jobject loader, jstring package);
445
446 /*
447 * Reflection support functions
448 */
449
450 JNIEXPORT jstring JNICALL
451 JVM_GetClassName(JNIEnv *env, jclass cls);
452
453 JNIEXPORT jobjectArray JNICALL
454 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
455
456 JNIEXPORT jboolean JNICALL
457 JVM_IsInterface(JNIEnv *env, jclass cls);
458
459 JNIEXPORT jobjectArray JNICALL
460 JVM_GetClassSigners(JNIEnv *env, jclass cls);
461
462 JNIEXPORT void JNICALL
463 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
464
465 JNIEXPORT jobject JNICALL
466 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
467
468 JNIEXPORT jboolean JNICALL
469 JVM_IsArrayClass(JNIEnv *env, jclass cls);
470
471 JNIEXPORT jboolean JNICALL
472 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
473
474 JNIEXPORT jint JNICALL
475 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
476
477 JNIEXPORT jobjectArray JNICALL
478 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
479
480 JNIEXPORT jclass JNICALL
481 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
482
483 JNIEXPORT jstring JNICALL
484 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
485
486 /* Generics support (JDK 1.5) */
487 JNIEXPORT jstring JNICALL
488 JVM_GetClassSignature(JNIEnv *env, jclass cls);
489
490 /* Annotations support (JDK 1.5) */
491 JNIEXPORT jbyteArray JNICALL
492 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
493
494 /* Annotations support (JDK 1.6) */
495
496 /* Type use annotations support (JDK 1.8) */
497
498 JNIEXPORT jbyteArray JNICALL
499 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
500
501 // field is a handle to a java.lang.reflect.Field object
502 JNIEXPORT jbyteArray JNICALL
503 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
504
505 // method is a handle to a java.lang.reflect.Method object
506 JNIEXPORT jbyteArray JNICALL
507 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
508
509 /*
510 * New (JDK 1.4) reflection implementation
511 */
512
513 JNIEXPORT jobjectArray JNICALL
514 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
515
516 JNIEXPORT jobjectArray JNICALL
517 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
518
519 JNIEXPORT jobjectArray JNICALL
520 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
521
522 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
523 This returns the access flags for the class as specified in the
524 class file rather than searching the InnerClasses attribute (if
525 present) to find the source-level access flags. Only the values of
526 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
527 valid. */
528 JNIEXPORT jint JNICALL
529 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
530
531 /*
532 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
533 */
534
535 JNIEXPORT jobject JNICALL
536 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
537
538 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
539 (JNIEnv *env, jobject obj, jobject unused);
540
541 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
542 (JNIEnv *env, jobject obj, jobject unused, jint index);
543
544 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
545 (JNIEnv *env, jobject obj, jobject unused, jint index);
546
547 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
548 (JNIEnv *env, jobject obj, jobject unused, jint index);
549
550 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
551 (JNIEnv *env, jobject obj, jobject unused, jint index);
552
553 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
554 (JNIEnv *env, jobject obj, jobject unused, jint index);
555
556 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
557 (JNIEnv *env, jobject obj, jobject unused, jint index);
558
559 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
560 (JNIEnv *env, jobject obj, jobject unused, jint index);
561
562 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
563 (JNIEnv *env, jobject obj, jobject unused, jint index);
564
565 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
566 (JNIEnv *env, jobject obj, jobject unused, jint index);
567
568 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
569 (JNIEnv *env, jobject obj, jobject unused, jint index);
570
571 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
572 (JNIEnv *env, jobject obj, jobject unused, jint index);
573
574 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
575 (JNIEnv *env, jobject obj, jobject unused, jint index);
576
577 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
578 (JNIEnv *env, jobject obj, jobject unused, jint index);
579
580 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
581 (JNIEnv *env, jobject obj, jobject unused, jint index);
582
583 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
584 (JNIEnv *env, jobject obj, jobject unused, jint index);
585
586 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
587 (JNIEnv *env, jobject obj, jobject unused, jint index);
588
589 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
590 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
591
592 /*
593 * java.security.*
594 */
595
596 JNIEXPORT jobject JNICALL
597 JVM_DoPrivileged(JNIEnv *env, jclass cls,
598 jobject action, jobject context, jboolean wrapException);
599
600 JNIEXPORT jobject JNICALL
601 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
602
603 JNIEXPORT jobject JNICALL
604 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
605
606 /*
607 * Signal support, used to implement the shutdown sequence. Every VM must
608 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
609 * (^C) and the latter for external termination (kill, system shutdown, etc.).
610 * Other platform-dependent signal values may also be supported.
611 */
612
613 JNIEXPORT void * JNICALL
614 JVM_RegisterSignal(jint sig, void *handler);
615
616 JNIEXPORT jboolean JNICALL
617 JVM_RaiseSignal(jint sig);
618
619 JNIEXPORT jint JNICALL
620 JVM_FindSignal(const char *name);
621
622 /*
623 * Retrieve the assertion directives for the specified class.
624 */
625 JNIEXPORT jboolean JNICALL
626 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
627
628 /*
629 * Retrieve the assertion directives from the VM.
630 */
631 JNIEXPORT jobject JNICALL
632 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
633
634 /*
635 * java.util.concurrent.atomic.AtomicLong
636 */
637 JNIEXPORT jboolean JNICALL
638 JVM_SupportsCX8(void);
639
640 /*************************************************************************
641 PART 2: Support for the Verifier and Class File Format Checker
642 ************************************************************************/
643 /*
644 * Return the class name in UTF format. The result is valid
645 * until JVM_ReleaseUTf is called.
646 *
647 * The caller must treat the string as a constant and not modify it
648 * in any way.
649 */
650 JNIEXPORT const char * JNICALL
651 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
652
653 /*
654 * Returns the constant pool types in the buffer provided by "types."
655 */
656 JNIEXPORT void JNICALL
657 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
658
659 /*
660 * Returns the number of Constant Pool entries.
661 */
662 JNIEXPORT jint JNICALL
663 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
664
665 /*
666 * Returns the number of *declared* fields or methods.
667 */
668 JNIEXPORT jint JNICALL
669 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
670
671 JNIEXPORT jint JNICALL
672 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
673
674 /*
675 * Returns the CP indexes of exceptions raised by a given method.
676 * Places the result in the given buffer.
677 *
678 * The method is identified by method_index.
679 */
680 JNIEXPORT void JNICALL
681 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
682 unsigned short *exceptions);
683 /*
684 * Returns the number of exceptions raised by a given method.
685 * The method is identified by method_index.
686 */
687 JNIEXPORT jint JNICALL
688 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
689
690 /*
691 * Returns the byte code sequence of a given method.
692 * Places the result in the given buffer.
693 *
694 * The method is identified by method_index.
695 */
696 JNIEXPORT void JNICALL
697 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
698 unsigned char *code);
699
700 /*
701 * Returns the length of the byte code sequence of a given method.
702 * The method is identified by method_index.
703 */
704 JNIEXPORT jint JNICALL
705 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
706
707 /*
708 * A structure used to a capture exception table entry in a Java method.
709 */
710 typedef struct {
711 jint start_pc;
712 jint end_pc;
713 jint handler_pc;
714 jint catchType;
715 } JVM_ExceptionTableEntryType;
716
717 /*
718 * Returns the exception table entry at entry_index of a given method.
719 * Places the result in the given buffer.
720 *
721 * The method is identified by method_index.
722 */
723 JNIEXPORT void JNICALL
724 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
725 jint entry_index,
726 JVM_ExceptionTableEntryType *entry);
727
728 /*
729 * Returns the length of the exception table of a given method.
730 * The method is identified by method_index.
731 */
732 JNIEXPORT jint JNICALL
733 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
734
735 /*
736 * Returns the modifiers of a given field.
737 * The field is identified by field_index.
738 */
739 JNIEXPORT jint JNICALL
740 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
741
742 /*
743 * Returns the modifiers of a given method.
744 * The method is identified by method_index.
745 */
746 JNIEXPORT jint JNICALL
747 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
748
749 /*
750 * Returns the number of local variables of a given method.
751 * The method is identified by method_index.
752 */
753 JNIEXPORT jint JNICALL
754 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
755
756 /*
757 * Returns the number of arguments (including this pointer) of a given method.
758 * The method is identified by method_index.
759 */
760 JNIEXPORT jint JNICALL
761 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
762
763 /*
764 * Returns the maximum amount of stack (in words) used by a given method.
765 * The method is identified by method_index.
766 */
767 JNIEXPORT jint JNICALL
768 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
769
770 /*
771 * Is a given method a constructor.
772 * The method is identified by method_index.
773 */
774 JNIEXPORT jboolean JNICALL
775 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
776
777 /*
778 * Is the given method generated by the VM.
779 * The method is identified by method_index.
780 */
781 JNIEXPORT jboolean JNICALL
782 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
783
784 /*
785 * Returns the name of a given method in UTF format.
786 * The result remains valid until JVM_ReleaseUTF is called.
787 *
788 * The caller must treat the string as a constant and not modify it
789 * in any way.
790 */
791 JNIEXPORT const char * JNICALL
792 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
793
794 /*
795 * Returns the signature of a given method in UTF format.
796 * The result remains valid until JVM_ReleaseUTF is called.
797 *
798 * The caller must treat the string as a constant and not modify it
799 * in any way.
800 */
801 JNIEXPORT const char * JNICALL
802 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
803
804 /*
805 * Returns the name of the field refered to at a given constant pool
806 * index.
807 *
808 * The result is in UTF format and remains valid until JVM_ReleaseUTF
809 * is called.
810 *
811 * The caller must treat the string as a constant and not modify it
812 * in any way.
813 */
814 JNIEXPORT const char * JNICALL
815 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
816
817 /*
818 * Returns the name of the method refered to at a given constant pool
819 * index.
820 *
821 * The result is in UTF format and remains valid until JVM_ReleaseUTF
822 * is called.
823 *
824 * The caller must treat the string as a constant and not modify it
825 * in any way.
826 */
827 JNIEXPORT const char * JNICALL
828 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
829
830 /*
831 * Returns the signature of the method refered to at a given constant pool
832 * index.
833 *
834 * The result is in UTF format and remains valid until JVM_ReleaseUTF
835 * is called.
836 *
837 * The caller must treat the string as a constant and not modify it
838 * in any way.
839 */
840 JNIEXPORT const char * JNICALL
841 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
842
843 /*
844 * Returns the signature of the field refered to at a given constant pool
845 * index.
846 *
847 * The result is in UTF format and remains valid until JVM_ReleaseUTF
848 * is called.
849 *
850 * The caller must treat the string as a constant and not modify it
851 * in any way.
852 */
853 JNIEXPORT const char * JNICALL
854 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
855
856 /*
857 * Returns the class name refered to at a given constant pool index.
858 *
859 * The result is in UTF format and remains valid until JVM_ReleaseUTF
860 * is called.
861 *
862 * The caller must treat the string as a constant and not modify it
863 * in any way.
864 */
865 JNIEXPORT const char * JNICALL
866 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
867
868 /*
869 * Returns the class name refered to at a given constant pool index.
870 *
871 * The constant pool entry must refer to a CONSTANT_Fieldref.
872 *
873 * The result is in UTF format and remains valid until JVM_ReleaseUTF
874 * is called.
875 *
876 * The caller must treat the string as a constant and not modify it
877 * in any way.
878 */
879 JNIEXPORT const char * JNICALL
880 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
881
882 /*
883 * Returns the class name refered to at a given constant pool index.
884 *
885 * The constant pool entry must refer to CONSTANT_Methodref or
886 * CONSTANT_InterfaceMethodref.
887 *
888 * The result is in UTF format and remains valid until JVM_ReleaseUTF
889 * is called.
890 *
891 * The caller must treat the string as a constant and not modify it
892 * in any way.
893 */
894 JNIEXPORT const char * JNICALL
895 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
896
897 /*
898 * Returns the modifiers of a field in calledClass. The field is
899 * referred to in class cb at constant pool entry index.
900 *
901 * The caller must treat the string as a constant and not modify it
902 * in any way.
903 *
904 * Returns -1 if the field does not exist in calledClass.
905 */
906 JNIEXPORT jint JNICALL
907 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
908
909 /*
910 * Returns the modifiers of a method in calledClass. The method is
911 * referred to in class cb at constant pool entry index.
912 *
913 * Returns -1 if the method does not exist in calledClass.
914 */
915 JNIEXPORT jint JNICALL
916 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
917
918 /*
919 * Releases the UTF string obtained from the VM.
920 */
921 JNIEXPORT void JNICALL
922 JVM_ReleaseUTF(const char *utf);
923
924 /*
925 * Compare if two classes are in the same package.
926 */
927 JNIEXPORT jboolean JNICALL
928 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
929
930 /* Constants in class files */
931
932 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
933 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
934 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
935 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
936 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
937 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
938 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
939 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
940 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
941 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
942 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
943 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
944 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
945 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
946 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
947 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
948 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
949 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
950 #define JVM_ACC_MODULE 0x8000 /* module-info class file */
951
952 #define JVM_ACC_PUBLIC_BIT 0
953 #define JVM_ACC_PRIVATE_BIT 1
954 #define JVM_ACC_PROTECTED_BIT 2
955 #define JVM_ACC_STATIC_BIT 3
956 #define JVM_ACC_FINAL_BIT 4
957 #define JVM_ACC_SYNCHRONIZED_BIT 5
958 #define JVM_ACC_SUPER_BIT 5
959 #define JVM_ACC_VOLATILE_BIT 6
960 #define JVM_ACC_BRIDGE_BIT 6
961 #define JVM_ACC_TRANSIENT_BIT 7
962 #define JVM_ACC_VARARGS_BIT 7
963 #define JVM_ACC_NATIVE_BIT 8
964 #define JVM_ACC_INTERFACE_BIT 9
965 #define JVM_ACC_ABSTRACT_BIT 10
966 #define JVM_ACC_STRICT_BIT 11
967 #define JVM_ACC_SYNTHETIC_BIT 12
968 #define JVM_ACC_ANNOTATION_BIT 13
969 #define JVM_ACC_ENUM_BIT 14
970
971 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
972 enum {
973 JVM_CONSTANT_Utf8 = 1,
974 JVM_CONSTANT_Unicode, /* unused */
975 JVM_CONSTANT_Integer,
976 JVM_CONSTANT_Float,
977 JVM_CONSTANT_Long,
978 JVM_CONSTANT_Double,
979 JVM_CONSTANT_Class,
980 JVM_CONSTANT_String,
981 JVM_CONSTANT_Fieldref,
982 JVM_CONSTANT_Methodref,
983 JVM_CONSTANT_InterfaceMethodref,
984 JVM_CONSTANT_NameAndType,
985 JVM_CONSTANT_MethodHandle = 15, // JSR 292
986 JVM_CONSTANT_MethodType = 16, // JSR 292
987 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
988 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
989 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
990 };
991
992 /* JVM_CONSTANT_MethodHandle subtypes */
993 enum {
994 JVM_REF_getField = 1,
995 JVM_REF_getStatic = 2,
996 JVM_REF_putField = 3,
997 JVM_REF_putStatic = 4,
998 JVM_REF_invokeVirtual = 5,
999 JVM_REF_invokeStatic = 6,
1000 JVM_REF_invokeSpecial = 7,
1001 JVM_REF_newInvokeSpecial = 8,
1002 JVM_REF_invokeInterface = 9
1003 };
1004
1005 /* Used in the newarray instruction. */
1006
1007 #define JVM_T_BOOLEAN 4
1008 #define JVM_T_CHAR 5
1009 #define JVM_T_FLOAT 6
1010 #define JVM_T_DOUBLE 7
1011 #define JVM_T_BYTE 8
1012 #define JVM_T_SHORT 9
1013 #define JVM_T_INT 10
1014 #define JVM_T_LONG 11
1015
1016 /* JVM method signatures */
1017
1018 #define JVM_SIGNATURE_ARRAY '['
1019 #define JVM_SIGNATURE_BYTE 'B'
1020 #define JVM_SIGNATURE_CHAR 'C'
1021 #define JVM_SIGNATURE_CLASS 'L'
1022 #define JVM_SIGNATURE_ENDCLASS ';'
1023 #define JVM_SIGNATURE_ENUM 'E'
1024 #define JVM_SIGNATURE_FLOAT 'F'
1025 #define JVM_SIGNATURE_DOUBLE 'D'
1026 #define JVM_SIGNATURE_FUNC '('
1027 #define JVM_SIGNATURE_ENDFUNC ')'
1028 #define JVM_SIGNATURE_INT 'I'
1029 #define JVM_SIGNATURE_LONG 'J'
1030 #define JVM_SIGNATURE_SHORT 'S'
1031 #define JVM_SIGNATURE_VOID 'V'
1032 #define JVM_SIGNATURE_BOOLEAN 'Z'
1033
1034 /*
1035 * A function defined by the byte-code verifier and called by the VM.
1036 * This is not a function implemented in the VM.
1037 *
1038 * Returns JNI_FALSE if verification fails. A detailed error message
1039 * will be places in msg_buf, whose length is specified by buf_len.
1040 */
1041 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1042 jclass cb,
1043 char * msg_buf,
1044 jint buf_len);
1045
1046
1047 /*
1048 * Support for a VM-independent class format checker.
1049 */
1050 typedef struct {
1051 unsigned long code; /* byte code */
1052 unsigned long excs; /* exceptions */
1053 unsigned long etab; /* catch table */
1054 unsigned long lnum; /* line number */
1055 unsigned long lvar; /* local vars */
1056 } method_size_info;
1057
1058 typedef struct {
1059 unsigned int constants; /* constant pool */
1060 unsigned int fields;
1061 unsigned int methods;
1062 unsigned int interfaces;
1063 unsigned int fields2; /* number of static 2-word fields */
1064 unsigned int innerclasses; /* # of records in InnerClasses attr */
1065
1066 method_size_info clinit; /* memory used in clinit */
1067 method_size_info main; /* used everywhere else */
1068 } class_size_info;
1069
1070 /*
1071 * Functions defined in libjava.so to perform string conversions.
1072 *
1073 */
1074
1075 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1076
1077 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1078
1079 /* This is the function defined in libjava.so that performs class
1080 * format checks. This functions fills in size information about
1081 * the class file and returns:
1082 *
1083 * 0: good
1084 * -1: out of memory
1085 * -2: bad format
1086 * -3: unsupported version
1087 * -4: bad class name
1088 */
1089
1090 typedef jint (*check_format_fn_t)(char *class_name,
1091 unsigned char *data,
1092 unsigned int data_size,
1093 class_size_info *class_size,
1094 char *message_buffer,
1095 jint buffer_length,
1096 jboolean measure_only,
1097 jboolean check_relaxed);
1098
1099 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1100 JVM_ACC_FINAL | \
1101 JVM_ACC_SUPER | \
1102 JVM_ACC_INTERFACE | \
1103 JVM_ACC_ABSTRACT | \
1104 JVM_ACC_ANNOTATION | \
1105 JVM_ACC_ENUM | \
1106 JVM_ACC_SYNTHETIC)
1107
1108 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1109 JVM_ACC_PRIVATE | \
1110 JVM_ACC_PROTECTED | \
1111 JVM_ACC_STATIC | \
1112 JVM_ACC_FINAL | \
1113 JVM_ACC_VOLATILE | \
1114 JVM_ACC_TRANSIENT | \
1115 JVM_ACC_ENUM | \
1116 JVM_ACC_SYNTHETIC)
1117
1118 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1119 JVM_ACC_PRIVATE | \
1120 JVM_ACC_PROTECTED | \
1121 JVM_ACC_STATIC | \
1122 JVM_ACC_FINAL | \
1123 JVM_ACC_SYNCHRONIZED | \
1124 JVM_ACC_BRIDGE | \
1125 JVM_ACC_VARARGS | \
1126 JVM_ACC_NATIVE | \
1127 JVM_ACC_ABSTRACT | \
1128 JVM_ACC_STRICT | \
1129 JVM_ACC_SYNTHETIC)
1130
1131 /*
1132 * This is the function defined in libjava.so to perform path
1133 * canonicalization. VM call this function before opening jar files
1134 * to load system classes.
1135 *
1136 */
1137
1138 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1139
1140 /*************************************************************************
1141 PART 3: I/O and Network Support
1142 ************************************************************************/
1143
1144 /*
1145 * Convert a pathname into native format. This function does syntactic
1146 * cleanup, such as removing redundant separator characters. It modifies
1147 * the given pathname string in place.
1148 */
1149 JNIEXPORT char * JNICALL
1150 JVM_NativePath(char *);
1151
1152 /*
1153 * The standard printing functions supported by the Java VM. (Should they
1154 * be renamed to JVM_* in the future?
1155 */
1156
1157 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1158 * respectively, with the following differences:
1159 * - The string written to str is always zero-terminated, also in case of
1160 * truncation (count is too small to hold the result string), unless count
1161 * is 0. In case of truncation count-1 characters are written and '\0'
1162 * appendend.
1163 * - If count is too small to hold the whole string, -1 is returned across
1164 * all platforms. */
1165 JNIEXPORT int
1166 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1167
1168 JNIEXPORT int
1169 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1170
1171 JNIEXPORT int
1172 jio_fprintf(FILE *, const char *fmt, ...);
1173
1174 JNIEXPORT int
1175 jio_vfprintf(FILE *, const char *fmt, va_list args);
1176
1177
1178 JNIEXPORT void * JNICALL
1179 JVM_RawMonitorCreate(void);
1180
1181 JNIEXPORT void JNICALL
1182 JVM_RawMonitorDestroy(void *mon);
1183
1184 JNIEXPORT jint JNICALL
1185 JVM_RawMonitorEnter(void *mon);
1186
1187 JNIEXPORT void JNICALL
1188 JVM_RawMonitorExit(void *mon);
1189
1190 /*
1191 * java.lang.reflect.Method
1192 */
1193 JNIEXPORT jobject JNICALL
1194 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1195
1196 /*
1197 * java.lang.reflect.Constructor
1198 */
1199 JNIEXPORT jobject JNICALL
1200 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1201
1202 /*
1203 * java.lang.management support
1204 */
1205 JNIEXPORT void* JNICALL
1206 JVM_GetManagement(jint version);
1207
1208 /*
1209 * com.sun.tools.attach.VirtualMachine support
1210 *
1211 * Initialize the agent properties with the properties maintained in the VM.
1212 */
1213 JNIEXPORT jobject JNICALL
1214 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1215
1216 JNIEXPORT jstring JNICALL
1217 JVM_GetTemporaryDirectory(JNIEnv *env);
1218
1219 /* Generics reflection support.
1220 *
1221 * Returns information about the given class's EnclosingMethod
1222 * attribute, if present, or null if the class had no enclosing
1223 * method.
1224 *
1225 * If non-null, the returned array contains three elements. Element 0
1226 * is the java.lang.Class of which the enclosing method is a member,
1227 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1228 * method's name and descriptor, respectively.
1229 */
1230 JNIEXPORT jobjectArray JNICALL
1231 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1232
1233 /* =========================================================================
1234 * The following defines a private JVM interface that the JDK can query
1235 * for the JVM version and capabilities. sun.misc.Version defines
1236 * the methods for getting the VM version and its capabilities.
1237 *
1238 * When a new bit is added, the following should be updated to provide
1239 * access to the new capability:
1240 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1241 * SDK: Version class
1242 *
1243 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1244 * JVM to query for the JDK version and capabilities.
1245 *
1246 * When a new bit is added, the following should be updated to provide
1247 * access to the new capability:
1248 * HS: JDK_Version class
1249 * SDK: JDK_GetVersionInfo0
1250 *
1251 * ==========================================================================
1252 */
1253 typedef struct {
1254 unsigned int jvm_version; /* Encoded $VNUM as defined by JEP-223 */
1255 unsigned int patch_version : 8; /* JEP-223 patch version */
1256 unsigned int reserved3 : 8;
1257 unsigned int reserved1 : 16;
1258 unsigned int reserved2;
1259
1260 /* The following bits represents JVM supports that JDK has dependency on.
1261 * JDK can use these bits to determine which JVM version
1262 * and support it has to maintain runtime compatibility.
1263 *
1264 * When a new bit is added in a minor or update release, make sure
1265 * the new bit is also added in the main/baseline.
1266 */
1267 unsigned int is_attachable : 1;
1268 unsigned int : 31;
1269 unsigned int : 32;
1270 unsigned int : 32;
1271 } jvm_version_info;
1272
1273 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1274 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1275 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1276 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1277
1278 JNIEXPORT void JNICALL
1279 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1280
1281 typedef struct {
1282 unsigned int jdk_version; /* Encoded $VNUM as defined by JEP-223 */
1283 unsigned int patch_version : 8; /* JEP-223 patch version */
1284 unsigned int reserved3 : 8;
1285 unsigned int reserved1 : 16;
1286 unsigned int reserved2;
1287
1288 /* The following bits represents new JDK supports that VM has dependency on.
1289 * VM implementation can use these bits to determine which JDK version
1290 * and support it has to maintain runtime compatibility.
1291 *
1292 * When a new bit is added in a minor or update release, make sure
1293 * the new bit is also added in the main/baseline.
1294 */
1295 unsigned int thread_park_blocker : 1;
1296 unsigned int post_vm_init_hook_enabled : 1;
1297 unsigned int pending_list_uses_discovered_field : 1;
1298 unsigned int : 29;
1299 unsigned int : 32;
1300 unsigned int : 32;
1301 } jdk_version_info;
1302
1303 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1304 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1305 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1306 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1307
1308 /*
1309 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1310 * that is dynamically looked up by JVM.
1311 */
1312 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1313
1314 /*
1315 * This structure is used by the launcher to get the default thread
1316 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1317 * version of 1.1. As it is not supported otherwise, it has been removed
1318 * from jni.h
1319 */
1320 typedef struct JDK1_1InitArgs {
1321 jint version;
1322
1323 char **properties;
1324 jint checkSource;
1325 jint nativeStackSize;
1326 jint javaStackSize;
1327 jint minHeapSize;
1328 jint maxHeapSize;
1329 jint verifyMode;
1330 char *classpath;
1331
1332 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1333 void (JNICALL *exit)(jint code);
1334 void (JNICALL *abort)(void);
1335
1336 jint enableClassGC;
1337 jint enableVerboseGC;
1338 jint disableAsyncGC;
1339 jint verbose;
1340 jboolean debugging;
1341 jint debugPort;
1342 } JDK1_1InitArgs;
1343
1344 #ifdef __cplusplus
1345 } /* extern "C" */
1346 #endif /* __cplusplus */
1347
1348 #endif /* !_JAVASOFT_JVM_H_ */
1349
1350 #endif // SHARE_VM_PRIMS_JVM_H