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