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 JNIEXPORT void JNICALL
193 JVM_GetStackTraceElements(JNIEnv *env, jobject throwable, jobjectArray elements);
194
195 /*
196 * java.lang.StackWalker
197 */
198 enum {
199 JVM_STACKWALK_FILL_CLASS_REFS_ONLY = 0x2,
200 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20,
201 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100
202 };
203
204 JNIEXPORT jobject JNICALL
205 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
206 jint skip_frames, jint frame_count, jint start_index,
207 jobjectArray frames);
208
209 JNIEXPORT jint JNICALL
210 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
211 jint frame_count, jint start_index,
212 jobjectArray frames);
213
214 JNIEXPORT void JNICALL
215 JVM_ToStackTraceElement(JNIEnv* env, jobject frame, jobject stackElement);
216
217 /*
218 * java.lang.Thread
219 */
220 JNIEXPORT void JNICALL
221 JVM_StartThread(JNIEnv *env, jobject thread);
222
223 JNIEXPORT void JNICALL
224 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
225
226 JNIEXPORT jboolean JNICALL
227 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
228
229 JNIEXPORT void JNICALL
230 JVM_SuspendThread(JNIEnv *env, jobject thread);
231
232 JNIEXPORT void JNICALL
233 JVM_ResumeThread(JNIEnv *env, jobject thread);
234
235 JNIEXPORT void JNICALL
236 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
237
238 JNIEXPORT void JNICALL
239 JVM_Yield(JNIEnv *env, jclass threadClass);
240
241 JNIEXPORT void JNICALL
242 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
243
244 JNIEXPORT jobject JNICALL
245 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
246
247 JNIEXPORT jint JNICALL
248 JVM_CountStackFrames(JNIEnv *env, jobject thread);
249
250 JNIEXPORT void JNICALL
251 JVM_Interrupt(JNIEnv *env, jobject thread);
252
253 JNIEXPORT jboolean JNICALL
254 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
255
256 JNIEXPORT jboolean JNICALL
257 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
258
259 JNIEXPORT void JNICALL
260 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
261
262 JNIEXPORT jobjectArray JNICALL
263 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
264
265 JNIEXPORT void JNICALL
266 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
267
268 /* getStackTrace() and getAllStackTraces() method */
269 JNIEXPORT jobjectArray JNICALL
270 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
271
272 /*
273 * java.lang.SecurityManager
274 */
275 JNIEXPORT jclass JNICALL
276 JVM_CurrentLoadedClass(JNIEnv *env);
277
278 JNIEXPORT jobject JNICALL
279 JVM_CurrentClassLoader(JNIEnv *env);
280
281 JNIEXPORT jobjectArray JNICALL
282 JVM_GetClassContext(JNIEnv *env);
283
284 JNIEXPORT jint JNICALL
285 JVM_ClassDepth(JNIEnv *env, jstring name);
286
287 JNIEXPORT jint JNICALL
288 JVM_ClassLoaderDepth(JNIEnv *env);
289
290 /*
291 * java.lang.Package
292 */
293 JNIEXPORT jstring JNICALL
294 JVM_GetSystemPackage(JNIEnv *env, jstring name);
295
296 JNIEXPORT jobjectArray JNICALL
297 JVM_GetSystemPackages(JNIEnv *env);
298
299 /*
300 * java.lang.ref.Reference
301 */
302 JNIEXPORT jobject JNICALL
303 JVM_GetAndClearReferencePendingList(JNIEnv *env);
304
305 JNIEXPORT jboolean JNICALL
306 JVM_CheckReferencePendingList(JNIEnv *env, jboolean await);
307
308 /*
309 * java.io.ObjectInputStream
310 */
311 JNIEXPORT jobject JNICALL
312 JVM_LatestUserDefinedLoader(JNIEnv *env);
313
314 /*
315 * java.lang.reflect.Array
316 */
317 JNIEXPORT jint JNICALL
318 JVM_GetArrayLength(JNIEnv *env, jobject arr);
319
320 JNIEXPORT jobject JNICALL
321 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
322
323 JNIEXPORT jvalue JNICALL
324 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
325
326 JNIEXPORT void JNICALL
327 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
328
329 JNIEXPORT void JNICALL
330 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
331 unsigned char vCode);
332
333 JNIEXPORT jobject JNICALL
334 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
335
336 JNIEXPORT jobject JNICALL
337 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
338
339 /*
340 * java.lang.Class and java.lang.ClassLoader
341 */
342
343 #define JVM_CALLER_DEPTH -1
344
345 /*
346 * Returns the class in which the code invoking the native method
347 * belongs.
348 *
349 * Note that in JDK 1.1, native methods did not create a frame.
350 * In 1.2, they do. Therefore native methods like Class.forName
351 * can no longer look at the current frame for the caller class.
352 */
353 JNIEXPORT jclass JNICALL
354 JVM_GetCallerClass(JNIEnv *env, int n);
355
356 /*
357 * Find primitive classes
358 * utf: class name
359 */
360 JNIEXPORT jclass JNICALL
361 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
362
363 /*
364 * Find a class from a boot class loader. Returns NULL if class not found.
365 */
366 JNIEXPORT jclass JNICALL
367 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
368
369 /*
370 * Find a class from a given class loader. Throws ClassNotFoundException.
371 * name: name of class
372 * init: whether initialization is done
373 * loader: class loader to look up the class. This may not be the same as the caller's
374 * class loader.
375 * caller: initiating class. The initiating class may be null when a security
376 * manager is not installed.
377 */
378 JNIEXPORT jclass JNICALL
379 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
380 jobject loader, jclass caller);
381
382 /*
383 * Find a class from a given class.
384 */
385 JNIEXPORT jclass JNICALL
386 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
387 jclass from);
388
389 /* Find a loaded class cached by the VM */
390 JNIEXPORT jclass JNICALL
391 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
392
393 /* Define a class */
394 JNIEXPORT jclass JNICALL
395 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
396 jsize len, jobject pd);
397
398 /* Define a class with a source (added in JDK1.5) */
399 JNIEXPORT jclass JNICALL
400 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
401 const jbyte *buf, jsize len, jobject pd,
402 const char *source);
403
404 /*
405 * Module support funcions
406 */
407
408 JNIEXPORT void JNICALL
409 JVM_DefineModule(JNIEnv *env, jobject module, jstring version, jstring location,
410 jobjectArray packages);
411
412 JNIEXPORT void JNICALL
413 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
414
415 JNIEXPORT void JNICALL
416 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
417
418 JNIEXPORT void JNICALL
419 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
420
421 JNIEXPORT void JNICALL
422 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
423
424 JNIEXPORT void JNICALL
425 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
426
427 JNIEXPORT jboolean JNICALL
428 JVM_CanReadModule(JNIEnv *env, jobject asking_module, jobject source_module);
429
430 JNIEXPORT jboolean JNICALL
431 JVM_IsExportedToModule(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
432
433 JNIEXPORT void JNICALL
434 JVM_AddModulePackage(JNIEnv* env, jobject module, jstring package);
435
436 JNIEXPORT jobject JNICALL
437 JVM_GetModuleByPackageName(JNIEnv* env, jobject loader, jstring package);
438
439 /*
440 * Reflection support functions
441 */
442
443 JNIEXPORT jstring JNICALL
444 JVM_GetClassName(JNIEnv *env, jclass cls);
445
446 JNIEXPORT jobjectArray JNICALL
447 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
448
449 JNIEXPORT jboolean JNICALL
450 JVM_IsInterface(JNIEnv *env, jclass cls);
451
452 JNIEXPORT jobjectArray JNICALL
453 JVM_GetClassSigners(JNIEnv *env, jclass cls);
454
455 JNIEXPORT void JNICALL
456 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
457
458 JNIEXPORT jobject JNICALL
459 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
460
461 JNIEXPORT jboolean JNICALL
462 JVM_IsArrayClass(JNIEnv *env, jclass cls);
463
464 JNIEXPORT jboolean JNICALL
465 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
466
467 JNIEXPORT jint JNICALL
468 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
469
470 JNIEXPORT jobjectArray JNICALL
471 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
472
473 JNIEXPORT jclass JNICALL
474 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
475
476 JNIEXPORT jstring JNICALL
477 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
478
479 /* Generics support (JDK 1.5) */
480 JNIEXPORT jstring JNICALL
481 JVM_GetClassSignature(JNIEnv *env, jclass cls);
482
483 /* Annotations support (JDK 1.5) */
484 JNIEXPORT jbyteArray JNICALL
485 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
486
487 /* Annotations support (JDK 1.6) */
488
489 /* Type use annotations support (JDK 1.8) */
490
491 JNIEXPORT jbyteArray JNICALL
492 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
493
494 // field is a handle to a java.lang.reflect.Field object
495 JNIEXPORT jbyteArray JNICALL
496 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
497
498 // method is a handle to a java.lang.reflect.Method object
499 JNIEXPORT jbyteArray JNICALL
500 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
501
502 /*
503 * New (JDK 1.4) reflection implementation
504 */
505
506 JNIEXPORT jobjectArray JNICALL
507 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
508
509 JNIEXPORT jobjectArray JNICALL
510 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
511
512 JNIEXPORT jobjectArray JNICALL
513 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
514
515 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
516 This returns the access flags for the class as specified in the
517 class file rather than searching the InnerClasses attribute (if
518 present) to find the source-level access flags. Only the values of
519 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
520 valid. */
521 JNIEXPORT jint JNICALL
522 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
523
524 /*
525 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
526 */
527
528 JNIEXPORT jobject JNICALL
529 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
530
531 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
532 (JNIEnv *env, jobject obj, jobject unused);
533
534 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
535 (JNIEnv *env, jobject obj, jobject unused, jint index);
536
537 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
538 (JNIEnv *env, jobject obj, jobject unused, jint index);
539
540 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
541 (JNIEnv *env, jobject obj, jobject unused, jint index);
542
543 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
544 (JNIEnv *env, jobject obj, jobject unused, jint index);
545
546 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
547 (JNIEnv *env, jobject obj, jobject unused, jint index);
548
549 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
550 (JNIEnv *env, jobject obj, jobject unused, jint index);
551
552 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
553 (JNIEnv *env, jobject obj, jobject unused, jint index);
554
555 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
556 (JNIEnv *env, jobject obj, jobject unused, jint index);
557
558 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
559 (JNIEnv *env, jobject obj, jobject unused, jint index);
560
561 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
562 (JNIEnv *env, jobject obj, jobject unused, jint index);
563
564 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
565 (JNIEnv *env, jobject obj, jobject unused, jint index);
566
567 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
568 (JNIEnv *env, jobject obj, jobject unused, jint index);
569
570 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
571 (JNIEnv *env, jobject obj, jobject unused, jint index);
572
573 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
574 (JNIEnv *env, jobject obj, jobject unused, jint index);
575
576 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
577 (JNIEnv *env, jobject obj, jobject unused, jint index);
578
579 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
580 (JNIEnv *env, jobject obj, jobject unused, jint index);
581
582 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
583 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
584
585 /*
586 * java.security.*
587 */
588
589 JNIEXPORT jobject JNICALL
590 JVM_DoPrivileged(JNIEnv *env, jclass cls,
591 jobject action, jobject context, jboolean wrapException);
592
593 JNIEXPORT jobject JNICALL
594 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
595
596 JNIEXPORT jobject JNICALL
597 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
598
599 /*
600 * Signal support, used to implement the shutdown sequence. Every VM must
601 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
602 * (^C) and the latter for external termination (kill, system shutdown, etc.).
603 * Other platform-dependent signal values may also be supported.
604 */
605
606 JNIEXPORT void * JNICALL
607 JVM_RegisterSignal(jint sig, void *handler);
608
609 JNIEXPORT jboolean JNICALL
610 JVM_RaiseSignal(jint sig);
611
612 JNIEXPORT jint JNICALL
613 JVM_FindSignal(const char *name);
614
615 /*
616 * Retrieve the assertion directives for the specified class.
617 */
618 JNIEXPORT jboolean JNICALL
619 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
620
621 /*
622 * Retrieve the assertion directives from the VM.
623 */
624 JNIEXPORT jobject JNICALL
625 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
626
627 /*
628 * java.util.concurrent.atomic.AtomicLong
629 */
630 JNIEXPORT jboolean JNICALL
631 JVM_SupportsCX8(void);
632
633 /*************************************************************************
634 PART 2: Support for the Verifier and Class File Format Checker
635 ************************************************************************/
636 /*
637 * Return the class name in UTF format. The result is valid
638 * until JVM_ReleaseUTf is called.
639 *
640 * The caller must treat the string as a constant and not modify it
641 * in any way.
642 */
643 JNIEXPORT const char * JNICALL
644 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
645
646 /*
647 * Returns the constant pool types in the buffer provided by "types."
648 */
649 JNIEXPORT void JNICALL
650 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
651
652 /*
653 * Returns the number of Constant Pool entries.
654 */
655 JNIEXPORT jint JNICALL
656 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
657
658 /*
659 * Returns the number of *declared* fields or methods.
660 */
661 JNIEXPORT jint JNICALL
662 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
663
664 JNIEXPORT jint JNICALL
665 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
666
667 /*
668 * Returns the CP indexes of exceptions raised by a given method.
669 * Places the result in the given buffer.
670 *
671 * The method is identified by method_index.
672 */
673 JNIEXPORT void JNICALL
674 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
675 unsigned short *exceptions);
676 /*
677 * Returns the number of exceptions raised by a given method.
678 * The method is identified by method_index.
679 */
680 JNIEXPORT jint JNICALL
681 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
682
683 /*
684 * Returns the byte code sequence of a given method.
685 * Places the result in the given buffer.
686 *
687 * The method is identified by method_index.
688 */
689 JNIEXPORT void JNICALL
690 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
691 unsigned char *code);
692
693 /*
694 * Returns the length of the byte code sequence of a given method.
695 * The method is identified by method_index.
696 */
697 JNIEXPORT jint JNICALL
698 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
699
700 /*
701 * A structure used to a capture exception table entry in a Java method.
702 */
703 typedef struct {
704 jint start_pc;
705 jint end_pc;
706 jint handler_pc;
707 jint catchType;
708 } JVM_ExceptionTableEntryType;
709
710 /*
711 * Returns the exception table entry at entry_index of a given method.
712 * Places the result in the given buffer.
713 *
714 * The method is identified by method_index.
715 */
716 JNIEXPORT void JNICALL
717 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
718 jint entry_index,
719 JVM_ExceptionTableEntryType *entry);
720
721 /*
722 * Returns the length of the exception table of a given method.
723 * The method is identified by method_index.
724 */
725 JNIEXPORT jint JNICALL
726 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
727
728 /*
729 * Returns the modifiers of a given field.
730 * The field is identified by field_index.
731 */
732 JNIEXPORT jint JNICALL
733 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
734
735 /*
736 * Returns the modifiers of a given method.
737 * The method is identified by method_index.
738 */
739 JNIEXPORT jint JNICALL
740 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
741
742 /*
743 * Returns the number of local variables of a given method.
744 * The method is identified by method_index.
745 */
746 JNIEXPORT jint JNICALL
747 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
748
749 /*
750 * Returns the number of arguments (including this pointer) of a given method.
751 * The method is identified by method_index.
752 */
753 JNIEXPORT jint JNICALL
754 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
755
756 /*
757 * Returns the maximum amount of stack (in words) used by a given method.
758 * The method is identified by method_index.
759 */
760 JNIEXPORT jint JNICALL
761 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
762
763 /*
764 * Is a given method a constructor.
765 * The method is identified by method_index.
766 */
767 JNIEXPORT jboolean JNICALL
768 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
769
770 /*
771 * Is the given method generated by the VM.
772 * The method is identified by method_index.
773 */
774 JNIEXPORT jboolean JNICALL
775 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
776
777 /*
778 * Returns the name of a given method in UTF format.
779 * The result remains valid until JVM_ReleaseUTF is called.
780 *
781 * The caller must treat the string as a constant and not modify it
782 * in any way.
783 */
784 JNIEXPORT const char * JNICALL
785 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
786
787 /*
788 * Returns the signature of a given method in UTF format.
789 * The result remains valid until JVM_ReleaseUTF is called.
790 *
791 * The caller must treat the string as a constant and not modify it
792 * in any way.
793 */
794 JNIEXPORT const char * JNICALL
795 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
796
797 /*
798 * Returns the name of the field refered to at a given constant pool
799 * index.
800 *
801 * The result is in UTF format and remains valid until JVM_ReleaseUTF
802 * is called.
803 *
804 * The caller must treat the string as a constant and not modify it
805 * in any way.
806 */
807 JNIEXPORT const char * JNICALL
808 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
809
810 /*
811 * Returns the name of the method refered to at a given constant pool
812 * index.
813 *
814 * The result is in UTF format and remains valid until JVM_ReleaseUTF
815 * is called.
816 *
817 * The caller must treat the string as a constant and not modify it
818 * in any way.
819 */
820 JNIEXPORT const char * JNICALL
821 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
822
823 /*
824 * Returns the signature of the method refered to at a given constant pool
825 * index.
826 *
827 * The result is in UTF format and remains valid until JVM_ReleaseUTF
828 * is called.
829 *
830 * The caller must treat the string as a constant and not modify it
831 * in any way.
832 */
833 JNIEXPORT const char * JNICALL
834 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
835
836 /*
837 * Returns the signature of the field refered to at a given constant pool
838 * index.
839 *
840 * The result is in UTF format and remains valid until JVM_ReleaseUTF
841 * is called.
842 *
843 * The caller must treat the string as a constant and not modify it
844 * in any way.
845 */
846 JNIEXPORT const char * JNICALL
847 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
848
849 /*
850 * Returns the class name refered to at a given constant pool index.
851 *
852 * The result is in UTF format and remains valid until JVM_ReleaseUTF
853 * is called.
854 *
855 * The caller must treat the string as a constant and not modify it
856 * in any way.
857 */
858 JNIEXPORT const char * JNICALL
859 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
860
861 /*
862 * Returns the class name refered to at a given constant pool index.
863 *
864 * The constant pool entry must refer to a CONSTANT_Fieldref.
865 *
866 * The result is in UTF format and remains valid until JVM_ReleaseUTF
867 * is called.
868 *
869 * The caller must treat the string as a constant and not modify it
870 * in any way.
871 */
872 JNIEXPORT const char * JNICALL
873 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
874
875 /*
876 * Returns the class name refered to at a given constant pool index.
877 *
878 * The constant pool entry must refer to CONSTANT_Methodref or
879 * CONSTANT_InterfaceMethodref.
880 *
881 * The result is in UTF format and remains valid until JVM_ReleaseUTF
882 * is called.
883 *
884 * The caller must treat the string as a constant and not modify it
885 * in any way.
886 */
887 JNIEXPORT const char * JNICALL
888 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
889
890 /*
891 * Returns the modifiers of a field in calledClass. The field is
892 * referred to in class cb at constant pool entry index.
893 *
894 * The caller must treat the string as a constant and not modify it
895 * in any way.
896 *
897 * Returns -1 if the field does not exist in calledClass.
898 */
899 JNIEXPORT jint JNICALL
900 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
901
902 /*
903 * Returns the modifiers of a method in calledClass. The method is
904 * referred to in class cb at constant pool entry index.
905 *
906 * Returns -1 if the method does not exist in calledClass.
907 */
908 JNIEXPORT jint JNICALL
909 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
910
911 /*
912 * Releases the UTF string obtained from the VM.
913 */
914 JNIEXPORT void JNICALL
915 JVM_ReleaseUTF(const char *utf);
916
917 /*
918 * Compare if two classes are in the same package.
919 */
920 JNIEXPORT jboolean JNICALL
921 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
922
923 /* Constants in class files */
924
925 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
926 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
927 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
928 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
929 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
930 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
931 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
932 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
933 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
934 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
935 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
936 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
937 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
938 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
939 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
940 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
941 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
942 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
943 #define JVM_ACC_MODULE 0x8000 /* module-info class file */
944
945 #define JVM_ACC_PUBLIC_BIT 0
946 #define JVM_ACC_PRIVATE_BIT 1
947 #define JVM_ACC_PROTECTED_BIT 2
948 #define JVM_ACC_STATIC_BIT 3
949 #define JVM_ACC_FINAL_BIT 4
950 #define JVM_ACC_SYNCHRONIZED_BIT 5
951 #define JVM_ACC_SUPER_BIT 5
952 #define JVM_ACC_VOLATILE_BIT 6
953 #define JVM_ACC_BRIDGE_BIT 6
954 #define JVM_ACC_TRANSIENT_BIT 7
955 #define JVM_ACC_VARARGS_BIT 7
956 #define JVM_ACC_NATIVE_BIT 8
957 #define JVM_ACC_INTERFACE_BIT 9
958 #define JVM_ACC_ABSTRACT_BIT 10
959 #define JVM_ACC_STRICT_BIT 11
960 #define JVM_ACC_SYNTHETIC_BIT 12
961 #define JVM_ACC_ANNOTATION_BIT 13
962 #define JVM_ACC_ENUM_BIT 14
963
964 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
965 enum {
966 JVM_CONSTANT_Utf8 = 1,
967 JVM_CONSTANT_Unicode, /* unused */
968 JVM_CONSTANT_Integer,
969 JVM_CONSTANT_Float,
970 JVM_CONSTANT_Long,
971 JVM_CONSTANT_Double,
972 JVM_CONSTANT_Class,
973 JVM_CONSTANT_String,
974 JVM_CONSTANT_Fieldref,
975 JVM_CONSTANT_Methodref,
976 JVM_CONSTANT_InterfaceMethodref,
977 JVM_CONSTANT_NameAndType,
978 JVM_CONSTANT_MethodHandle = 15, // JSR 292
979 JVM_CONSTANT_MethodType = 16, // JSR 292
980 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
981 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
982 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
983 };
984
985 /* JVM_CONSTANT_MethodHandle subtypes */
986 enum {
987 JVM_REF_getField = 1,
988 JVM_REF_getStatic = 2,
989 JVM_REF_putField = 3,
990 JVM_REF_putStatic = 4,
991 JVM_REF_invokeVirtual = 5,
992 JVM_REF_invokeStatic = 6,
993 JVM_REF_invokeSpecial = 7,
994 JVM_REF_newInvokeSpecial = 8,
995 JVM_REF_invokeInterface = 9
996 };
997
998 /* Used in the newarray instruction. */
999
1000 #define JVM_T_BOOLEAN 4
1001 #define JVM_T_CHAR 5
1002 #define JVM_T_FLOAT 6
1003 #define JVM_T_DOUBLE 7
1004 #define JVM_T_BYTE 8
1005 #define JVM_T_SHORT 9
1006 #define JVM_T_INT 10
1007 #define JVM_T_LONG 11
1008
1009 /* JVM method signatures */
1010
1011 #define JVM_SIGNATURE_ARRAY '['
1012 #define JVM_SIGNATURE_BYTE 'B'
1013 #define JVM_SIGNATURE_CHAR 'C'
1014 #define JVM_SIGNATURE_CLASS 'L'
1015 #define JVM_SIGNATURE_ENDCLASS ';'
1016 #define JVM_SIGNATURE_ENUM 'E'
1017 #define JVM_SIGNATURE_FLOAT 'F'
1018 #define JVM_SIGNATURE_DOUBLE 'D'
1019 #define JVM_SIGNATURE_FUNC '('
1020 #define JVM_SIGNATURE_ENDFUNC ')'
1021 #define JVM_SIGNATURE_INT 'I'
1022 #define JVM_SIGNATURE_LONG 'J'
1023 #define JVM_SIGNATURE_SHORT 'S'
1024 #define JVM_SIGNATURE_VOID 'V'
1025 #define JVM_SIGNATURE_BOOLEAN 'Z'
1026
1027 /*
1028 * A function defined by the byte-code verifier and called by the VM.
1029 * This is not a function implemented in the VM.
1030 *
1031 * Returns JNI_FALSE if verification fails. A detailed error message
1032 * will be places in msg_buf, whose length is specified by buf_len.
1033 */
1034 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1035 jclass cb,
1036 char * msg_buf,
1037 jint buf_len);
1038
1039
1040 /*
1041 * Support for a VM-independent class format checker.
1042 */
1043 typedef struct {
1044 unsigned long code; /* byte code */
1045 unsigned long excs; /* exceptions */
1046 unsigned long etab; /* catch table */
1047 unsigned long lnum; /* line number */
1048 unsigned long lvar; /* local vars */
1049 } method_size_info;
1050
1051 typedef struct {
1052 unsigned int constants; /* constant pool */
1053 unsigned int fields;
1054 unsigned int methods;
1055 unsigned int interfaces;
1056 unsigned int fields2; /* number of static 2-word fields */
1057 unsigned int innerclasses; /* # of records in InnerClasses attr */
1058
1059 method_size_info clinit; /* memory used in clinit */
1060 method_size_info main; /* used everywhere else */
1061 } class_size_info;
1062
1063 /*
1064 * Functions defined in libjava.so to perform string conversions.
1065 *
1066 */
1067
1068 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1069
1070 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1071
1072 /* This is the function defined in libjava.so that performs class
1073 * format checks. This functions fills in size information about
1074 * the class file and returns:
1075 *
1076 * 0: good
1077 * -1: out of memory
1078 * -2: bad format
1079 * -3: unsupported version
1080 * -4: bad class name
1081 */
1082
1083 typedef jint (*check_format_fn_t)(char *class_name,
1084 unsigned char *data,
1085 unsigned int data_size,
1086 class_size_info *class_size,
1087 char *message_buffer,
1088 jint buffer_length,
1089 jboolean measure_only,
1090 jboolean check_relaxed);
1091
1092 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1093 JVM_ACC_FINAL | \
1094 JVM_ACC_SUPER | \
1095 JVM_ACC_INTERFACE | \
1096 JVM_ACC_ABSTRACT | \
1097 JVM_ACC_ANNOTATION | \
1098 JVM_ACC_ENUM | \
1099 JVM_ACC_SYNTHETIC)
1100
1101 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1102 JVM_ACC_PRIVATE | \
1103 JVM_ACC_PROTECTED | \
1104 JVM_ACC_STATIC | \
1105 JVM_ACC_FINAL | \
1106 JVM_ACC_VOLATILE | \
1107 JVM_ACC_TRANSIENT | \
1108 JVM_ACC_ENUM | \
1109 JVM_ACC_SYNTHETIC)
1110
1111 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1112 JVM_ACC_PRIVATE | \
1113 JVM_ACC_PROTECTED | \
1114 JVM_ACC_STATIC | \
1115 JVM_ACC_FINAL | \
1116 JVM_ACC_SYNCHRONIZED | \
1117 JVM_ACC_BRIDGE | \
1118 JVM_ACC_VARARGS | \
1119 JVM_ACC_NATIVE | \
1120 JVM_ACC_ABSTRACT | \
1121 JVM_ACC_STRICT | \
1122 JVM_ACC_SYNTHETIC)
1123
1124 /*
1125 * This is the function defined in libjava.so to perform path
1126 * canonicalization. VM call this function before opening jar files
1127 * to load system classes.
1128 *
1129 */
1130
1131 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1132
1133 /*************************************************************************
1134 PART 3: I/O and Network Support
1135 ************************************************************************/
1136
1137 /*
1138 * Convert a pathname into native format. This function does syntactic
1139 * cleanup, such as removing redundant separator characters. It modifies
1140 * the given pathname string in place.
1141 */
1142 JNIEXPORT char * JNICALL
1143 JVM_NativePath(char *);
1144
1145 /*
1146 * The standard printing functions supported by the Java VM. (Should they
1147 * be renamed to JVM_* in the future?
1148 */
1149
1150 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1151 * respectively, with the following differences:
1152 * - The string written to str is always zero-terminated, also in case of
1153 * truncation (count is too small to hold the result string), unless count
1154 * is 0. In case of truncation count-1 characters are written and '\0'
1155 * appendend.
1156 * - If count is too small to hold the whole string, -1 is returned across
1157 * all platforms. */
1158 JNIEXPORT int
1159 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1160
1161 JNIEXPORT int
1162 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1163
1164 JNIEXPORT int
1165 jio_fprintf(FILE *, const char *fmt, ...);
1166
1167 JNIEXPORT int
1168 jio_vfprintf(FILE *, const char *fmt, va_list args);
1169
1170
1171 JNIEXPORT void * JNICALL
1172 JVM_RawMonitorCreate(void);
1173
1174 JNIEXPORT void JNICALL
1175 JVM_RawMonitorDestroy(void *mon);
1176
1177 JNIEXPORT jint JNICALL
1178 JVM_RawMonitorEnter(void *mon);
1179
1180 JNIEXPORT void JNICALL
1181 JVM_RawMonitorExit(void *mon);
1182
1183 /*
1184 * java.lang.reflect.Method
1185 */
1186 JNIEXPORT jobject JNICALL
1187 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1188
1189 /*
1190 * java.lang.reflect.Constructor
1191 */
1192 JNIEXPORT jobject JNICALL
1193 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1194
1195 /*
1196 * java.lang.management support
1197 */
1198 JNIEXPORT void* JNICALL
1199 JVM_GetManagement(jint version);
1200
1201 /*
1202 * com.sun.tools.attach.VirtualMachine support
1203 *
1204 * Initialize the agent properties with the properties maintained in the VM.
1205 */
1206 JNIEXPORT jobject JNICALL
1207 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1208
1209 JNIEXPORT jstring JNICALL
1210 JVM_GetTemporaryDirectory(JNIEnv *env);
1211
1212 /* Generics reflection support.
1213 *
1214 * Returns information about the given class's EnclosingMethod
1215 * attribute, if present, or null if the class had no enclosing
1216 * method.
1217 *
1218 * If non-null, the returned array contains three elements. Element 0
1219 * is the java.lang.Class of which the enclosing method is a member,
1220 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1221 * method's name and descriptor, respectively.
1222 */
1223 JNIEXPORT jobjectArray JNICALL
1224 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1225
1226 /* =========================================================================
1227 * The following defines a private JVM interface that the JDK can query
1228 * for the JVM version and capabilities. sun.misc.Version defines
1229 * the methods for getting the VM version and its capabilities.
1230 *
1231 * When a new bit is added, the following should be updated to provide
1232 * access to the new capability:
1233 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1234 * SDK: Version class
1235 *
1236 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1237 * JVM to query for the JDK version and capabilities.
1238 *
1239 * When a new bit is added, the following should be updated to provide
1240 * access to the new capability:
1241 * HS: JDK_Version class
1242 * SDK: JDK_GetVersionInfo0
1243 *
1244 * ==========================================================================
1245 */
1246 typedef struct {
1247 unsigned int jvm_version; /* Encoded $VNUM as defined by JEP-223 */
1248 unsigned int patch_version : 8; /* JEP-223 patch version */
1249 unsigned int reserved3 : 8;
1250 unsigned int reserved1 : 16;
1251 unsigned int reserved2;
1252
1253 /* The following bits represents JVM supports that JDK has dependency on.
1254 * JDK can use these bits to determine which JVM version
1255 * and support it has to maintain runtime compatibility.
1256 *
1257 * When a new bit is added in a minor or update release, make sure
1258 * the new bit is also added in the main/baseline.
1259 */
1260 unsigned int is_attachable : 1;
1261 unsigned int : 31;
1262 unsigned int : 32;
1263 unsigned int : 32;
1264 } jvm_version_info;
1265
1266 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1267 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1268 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1269 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1270
1271 JNIEXPORT void JNICALL
1272 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1273
1274 typedef struct {
1275 unsigned int jdk_version; /* Encoded $VNUM as defined by JEP-223 */
1276 unsigned int patch_version : 8; /* JEP-223 patch version */
1277 unsigned int reserved3 : 8;
1278 unsigned int reserved1 : 16;
1279 unsigned int reserved2;
1280
1281 /* The following bits represents new JDK supports that VM has dependency on.
1282 * VM implementation can use these bits to determine which JDK version
1283 * and support it has to maintain runtime compatibility.
1284 *
1285 * When a new bit is added in a minor or update release, make sure
1286 * the new bit is also added in the main/baseline.
1287 */
1288 unsigned int thread_park_blocker : 1;
1289 unsigned int post_vm_init_hook_enabled : 1;
1290 unsigned int pending_list_uses_discovered_field : 1;
1291 unsigned int : 29;
1292 unsigned int : 32;
1293 unsigned int : 32;
1294 } jdk_version_info;
1295
1296 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1297 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1298 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1299 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1300
1301 /*
1302 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1303 * that is dynamically looked up by JVM.
1304 */
1305 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1306
1307 /*
1308 * This structure is used by the launcher to get the default thread
1309 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1310 * version of 1.1. As it is not supported otherwise, it has been removed
1311 * from jni.h
1312 */
1313 typedef struct JDK1_1InitArgs {
1314 jint version;
1315
1316 char **properties;
1317 jint checkSource;
1318 jint nativeStackSize;
1319 jint javaStackSize;
1320 jint minHeapSize;
1321 jint maxHeapSize;
1322 jint verifyMode;
1323 char *classpath;
1324
1325 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1326 void (JNICALL *exit)(jint code);
1327 void (JNICALL *abort)(void);
1328
1329 jint enableClassGC;
1330 jint enableVerboseGC;
1331 jint disableAsyncGC;
1332 jint verbose;
1333 jboolean debugging;
1334 jint debugPort;
1335 } JDK1_1InitArgs;
1336
1337 #ifdef __cplusplus
1338 } /* extern "C" */
1339 #endif /* __cplusplus */
1340
1341 #endif /* !_JAVASOFT_JVM_H_ */
1342
1343 #endif // SHARE_VM_PRIMS_JVM_H