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 = 0x2,
212 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20,
213 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100
214 };
215
216 JNIEXPORT jobject JNICALL
217 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
218 jint skip_frames, jint frame_count, jint start_index,
219 jobjectArray frames);
220
221 JNIEXPORT jint JNICALL
222 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
223 jint frame_count, jint start_index,
224 jobjectArray frames);
225
226 JNIEXPORT void JNICALL
227 JVM_ToStackTraceElement(JNIEnv* env, jobject frame, jobject stackElement);
228
229 /*
230 * java.lang.Thread
231 */
232 JNIEXPORT void JNICALL
233 JVM_StartThread(JNIEnv *env, jobject thread);
234
235 JNIEXPORT void JNICALL
236 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
237
238 JNIEXPORT jboolean JNICALL
239 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
240
241 JNIEXPORT void JNICALL
242 JVM_SuspendThread(JNIEnv *env, jobject thread);
243
244 JNIEXPORT void JNICALL
245 JVM_ResumeThread(JNIEnv *env, jobject thread);
246
247 JNIEXPORT void JNICALL
248 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
249
250 JNIEXPORT void JNICALL
251 JVM_Yield(JNIEnv *env, jclass threadClass);
252
253 JNIEXPORT void JNICALL
254 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
255
256 JNIEXPORT jobject JNICALL
257 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
258
259 JNIEXPORT jint JNICALL
260 JVM_CountStackFrames(JNIEnv *env, jobject thread);
261
262 JNIEXPORT void JNICALL
263 JVM_Interrupt(JNIEnv *env, jobject thread);
264
265 JNIEXPORT jboolean JNICALL
266 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
267
268 JNIEXPORT jboolean JNICALL
269 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
270
271 JNIEXPORT void JNICALL
272 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
273
274 JNIEXPORT jobjectArray JNICALL
275 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
276
277 JNIEXPORT void JNICALL
278 JVM_SetNativeThreadName0(const char *name);
279
280 JNIEXPORT void JNICALL
281 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
282
283 /* getStackTrace() and getAllStackTraces() method */
284 JNIEXPORT jobjectArray JNICALL
285 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
286
287 /*
288 * java.lang.SecurityManager
289 */
290 JNIEXPORT jclass JNICALL
291 JVM_CurrentLoadedClass(JNIEnv *env);
292
293 JNIEXPORT jobject JNICALL
294 JVM_CurrentClassLoader(JNIEnv *env);
295
296 JNIEXPORT jobjectArray JNICALL
297 JVM_GetClassContext(JNIEnv *env);
298
299 JNIEXPORT jint JNICALL
300 JVM_ClassDepth(JNIEnv *env, jstring name);
301
302 JNIEXPORT jint JNICALL
303 JVM_ClassLoaderDepth(JNIEnv *env);
304
305 /*
306 * java.lang.Package
307 */
308 JNIEXPORT jstring JNICALL
309 JVM_GetSystemPackage(JNIEnv *env, jstring name);
310
311 JNIEXPORT jobjectArray JNICALL
312 JVM_GetSystemPackages(JNIEnv *env);
313
314 /*
315 * java.io.ObjectInputStream
316 */
317 JNIEXPORT jobject JNICALL
318 JVM_LatestUserDefinedLoader(JNIEnv *env);
319
320 /*
321 * java.lang.reflect.Array
322 */
323 JNIEXPORT jint JNICALL
324 JVM_GetArrayLength(JNIEnv *env, jobject arr);
325
326 JNIEXPORT jobject JNICALL
327 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
328
329 JNIEXPORT jvalue JNICALL
330 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
331
332 JNIEXPORT void JNICALL
333 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
334
335 JNIEXPORT void JNICALL
336 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
337 unsigned char vCode);
338
339 JNIEXPORT jobject JNICALL
340 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
341
342 JNIEXPORT jobject JNICALL
343 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
344
345 /*
346 * java.lang.Class and java.lang.ClassLoader
347 */
348
349 #define JVM_CALLER_DEPTH -1
350
351 /*
352 * Returns the class in which the code invoking the native method
353 * belongs.
354 *
355 * Note that in JDK 1.1, native methods did not create a frame.
356 * In 1.2, they do. Therefore native methods like Class.forName
357 * can no longer look at the current frame for the caller class.
358 */
359 JNIEXPORT jclass JNICALL
360 JVM_GetCallerClass(JNIEnv *env, int n);
361
362 /*
363 * Find primitive classes
364 * utf: class name
365 */
366 JNIEXPORT jclass JNICALL
367 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
368
369 /*
370 * Find a class from a boot class loader. Returns NULL if class not found.
371 */
372 JNIEXPORT jclass JNICALL
373 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
374
375 /*
376 * Find a class from a given class loader. Throws ClassNotFoundException.
377 * name: name of class
378 * init: whether initialization is done
379 * loader: class loader to look up the class. This may not be the same as the caller's
380 * class loader.
381 * caller: initiating class. The initiating class may be null when a security
382 * manager is not installed.
383 */
384 JNIEXPORT jclass JNICALL
385 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
386 jobject loader, jclass caller);
387
388 /*
389 * Find a class from a given class.
390 */
391 JNIEXPORT jclass JNICALL
392 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
393 jclass from);
394
395 /* Find a loaded class cached by the VM */
396 JNIEXPORT jclass JNICALL
397 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
398
399 /* Define a class */
400 JNIEXPORT jclass JNICALL
401 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
402 jsize len, jobject pd);
403
404 /* Define a class with a source (added in JDK1.5) */
405 JNIEXPORT jclass JNICALL
406 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
407 const jbyte *buf, jsize len, jobject pd,
408 const char *source);
409
410 /*
411 * Module support funcions
412 */
413
414 JNIEXPORT void JNICALL
415 JVM_DefineModule(JNIEnv *env, jobject module, jstring version, jstring location,
416 jobjectArray packages);
417
418 JNIEXPORT void JNICALL
419 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
420
421 JNIEXPORT void JNICALL
422 JVM_AddModuleExports(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
423
424 JNIEXPORT void JNICALL
425 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, jstring package);
426
427 JNIEXPORT void JNICALL
428 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, jstring package);
429
430 JNIEXPORT void JNICALL
431 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
432
433 JNIEXPORT jboolean JNICALL
434 JVM_CanReadModule(JNIEnv *env, jobject asking_module, jobject source_module);
435
436 JNIEXPORT jboolean JNICALL
437 JVM_IsExportedToModule(JNIEnv *env, jobject from_module, jstring package, jobject to_module);
438
439 JNIEXPORT void JNICALL
440 JVM_AddModulePackage(JNIEnv* env, jobject module, jstring package);
441
442 JNIEXPORT jobject JNICALL
443 JVM_GetModuleByPackageName(JNIEnv* env, jobject loader, jstring package);
444
445 /*
446 * Reflection support functions
447 */
448
449 JNIEXPORT jstring JNICALL
450 JVM_GetClassName(JNIEnv *env, jclass cls);
451
452 JNIEXPORT jobjectArray JNICALL
453 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
454
455 JNIEXPORT jboolean JNICALL
456 JVM_IsInterface(JNIEnv *env, jclass cls);
457
458 JNIEXPORT jobjectArray JNICALL
459 JVM_GetClassSigners(JNIEnv *env, jclass cls);
460
461 JNIEXPORT void JNICALL
462 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
463
464 JNIEXPORT jobject JNICALL
465 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
466
467 JNIEXPORT jboolean JNICALL
468 JVM_IsArrayClass(JNIEnv *env, jclass cls);
469
470 JNIEXPORT jboolean JNICALL
471 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
472
473 JNIEXPORT jint JNICALL
474 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
475
476 JNIEXPORT jobjectArray JNICALL
477 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
478
479 JNIEXPORT jclass JNICALL
480 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
481
482 JNIEXPORT jstring JNICALL
483 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
484
485 /* Generics support (JDK 1.5) */
486 JNIEXPORT jstring JNICALL
487 JVM_GetClassSignature(JNIEnv *env, jclass cls);
488
489 /* Annotations support (JDK 1.5) */
490 JNIEXPORT jbyteArray JNICALL
491 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
492
493 /* Annotations support (JDK 1.6) */
494
495 /* Type use annotations support (JDK 1.8) */
496
497 JNIEXPORT jbyteArray JNICALL
498 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
499
500 // field is a handle to a java.lang.reflect.Field object
501 JNIEXPORT jbyteArray JNICALL
502 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
503
504 // method is a handle to a java.lang.reflect.Method object
505 JNIEXPORT jbyteArray JNICALL
506 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
507
508 /*
509 * New (JDK 1.4) reflection implementation
510 */
511
512 JNIEXPORT jobjectArray JNICALL
513 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
514
515 JNIEXPORT jobjectArray JNICALL
516 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
517
518 JNIEXPORT jobjectArray JNICALL
519 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
520
521 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
522 This returns the access flags for the class as specified in the
523 class file rather than searching the InnerClasses attribute (if
524 present) to find the source-level access flags. Only the values of
525 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
526 valid. */
527 JNIEXPORT jint JNICALL
528 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
529
530 /*
531 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
532 */
533
534 JNIEXPORT jobject JNICALL
535 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
536
537 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
538 (JNIEnv *env, jobject obj, jobject unused);
539
540 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
541 (JNIEnv *env, jobject obj, jobject unused, jint index);
542
543 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
544 (JNIEnv *env, jobject obj, jobject unused, jint index);
545
546 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
547 (JNIEnv *env, jobject obj, jobject unused, jint index);
548
549 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
550 (JNIEnv *env, jobject obj, jobject unused, jint index);
551
552 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
553 (JNIEnv *env, jobject obj, jobject unused, jint index);
554
555 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
556 (JNIEnv *env, jobject obj, jobject unused, jint index);
557
558 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
559 (JNIEnv *env, jobject obj, jobject unused, jint index);
560
561 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
562 (JNIEnv *env, jobject obj, jobject unused, jint index);
563
564 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
565 (JNIEnv *env, jobject obj, jobject unused, jint index);
566
567 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
568 (JNIEnv *env, jobject obj, jobject unused, jint index);
569
570 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
571 (JNIEnv *env, jobject obj, jobject unused, jint index);
572
573 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
574 (JNIEnv *env, jobject obj, jobject unused, jint index);
575
576 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
577 (JNIEnv *env, jobject obj, jobject unused, jint index);
578
579 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
580 (JNIEnv *env, jobject obj, jobject unused, jint index);
581
582 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
583 (JNIEnv *env, jobject obj, jobject unused, jint index);
584
585 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
586 (JNIEnv *env, jobject obj, jobject unused, jint index);
587
588 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
589 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
590
591 /*
592 * java.security.*
593 */
594
595 JNIEXPORT jobject JNICALL
596 JVM_DoPrivileged(JNIEnv *env, jclass cls,
597 jobject action, jobject context, jboolean wrapException);
598
599 JNIEXPORT jobject JNICALL
600 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
601
602 JNIEXPORT jobject JNICALL
603 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
604
605 /*
606 * Signal support, used to implement the shutdown sequence. Every VM must
607 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
608 * (^C) and the latter for external termination (kill, system shutdown, etc.).
609 * Other platform-dependent signal values may also be supported.
610 */
611
612 JNIEXPORT void * JNICALL
613 JVM_RegisterSignal(jint sig, void *handler);
614
615 JNIEXPORT jboolean JNICALL
616 JVM_RaiseSignal(jint sig);
617
618 JNIEXPORT jint JNICALL
619 JVM_FindSignal(const char *name);
620
621 /*
622 * Retrieve the assertion directives for the specified class.
623 */
624 JNIEXPORT jboolean JNICALL
625 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
626
627 /*
628 * Retrieve the assertion directives from the VM.
629 */
630 JNIEXPORT jobject JNICALL
631 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
632
633 /*
634 * java.util.concurrent.atomic.AtomicLong
635 */
636 JNIEXPORT jboolean JNICALL
637 JVM_SupportsCX8(void);
638
639 /*************************************************************************
640 PART 2: Support for the Verifier and Class File Format Checker
641 ************************************************************************/
642 /*
643 * Return the class name in UTF format. The result is valid
644 * until JVM_ReleaseUTf is called.
645 *
646 * The caller must treat the string as a constant and not modify it
647 * in any way.
648 */
649 JNIEXPORT const char * JNICALL
650 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
651
652 /*
653 * Returns the constant pool types in the buffer provided by "types."
654 */
655 JNIEXPORT void JNICALL
656 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
657
658 /*
659 * Returns the number of Constant Pool entries.
660 */
661 JNIEXPORT jint JNICALL
662 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
663
664 /*
665 * Returns the number of *declared* fields or methods.
666 */
667 JNIEXPORT jint JNICALL
668 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
669
670 JNIEXPORT jint JNICALL
671 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
672
673 /*
674 * Returns the CP indexes of exceptions raised by a given method.
675 * Places the result in the given buffer.
676 *
677 * The method is identified by method_index.
678 */
679 JNIEXPORT void JNICALL
680 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
681 unsigned short *exceptions);
682 /*
683 * Returns the number of exceptions raised by a given method.
684 * The method is identified by method_index.
685 */
686 JNIEXPORT jint JNICALL
687 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
688
689 /*
690 * Returns the byte code sequence of a given method.
691 * Places the result in the given buffer.
692 *
693 * The method is identified by method_index.
694 */
695 JNIEXPORT void JNICALL
696 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
697 unsigned char *code);
698
699 /*
700 * Returns the length of the byte code sequence of a given method.
701 * The method is identified by method_index.
702 */
703 JNIEXPORT jint JNICALL
704 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
705
706 /*
707 * A structure used to a capture exception table entry in a Java method.
708 */
709 typedef struct {
710 jint start_pc;
711 jint end_pc;
712 jint handler_pc;
713 jint catchType;
714 } JVM_ExceptionTableEntryType;
715
716 /*
717 * Returns the exception table entry at entry_index of a given method.
718 * Places the result in the given buffer.
719 *
720 * The method is identified by method_index.
721 */
722 JNIEXPORT void JNICALL
723 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
724 jint entry_index,
725 JVM_ExceptionTableEntryType *entry);
726
727 /*
728 * Returns the length of the exception table of a given method.
729 * The method is identified by method_index.
730 */
731 JNIEXPORT jint JNICALL
732 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
733
734 /*
735 * Returns the modifiers of a given field.
736 * The field is identified by field_index.
737 */
738 JNIEXPORT jint JNICALL
739 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
740
741 /*
742 * Returns the modifiers of a given method.
743 * The method is identified by method_index.
744 */
745 JNIEXPORT jint JNICALL
746 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
747
748 /*
749 * Returns the number of local variables of a given method.
750 * The method is identified by method_index.
751 */
752 JNIEXPORT jint JNICALL
753 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
754
755 /*
756 * Returns the number of arguments (including this pointer) of a given method.
757 * The method is identified by method_index.
758 */
759 JNIEXPORT jint JNICALL
760 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
761
762 /*
763 * Returns the maximum amount of stack (in words) used by a given method.
764 * The method is identified by method_index.
765 */
766 JNIEXPORT jint JNICALL
767 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
768
769 /*
770 * Is a given method a constructor.
771 * The method is identified by method_index.
772 */
773 JNIEXPORT jboolean JNICALL
774 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
775
776 /*
777 * Is the given method generated by the VM.
778 * The method is identified by method_index.
779 */
780 JNIEXPORT jboolean JNICALL
781 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
782
783 /*
784 * Returns the name of a given method in UTF format.
785 * The result remains valid until JVM_ReleaseUTF is called.
786 *
787 * The caller must treat the string as a constant and not modify it
788 * in any way.
789 */
790 JNIEXPORT const char * JNICALL
791 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
792
793 /*
794 * Returns the signature of a given method in UTF format.
795 * The result remains valid until JVM_ReleaseUTF is called.
796 *
797 * The caller must treat the string as a constant and not modify it
798 * in any way.
799 */
800 JNIEXPORT const char * JNICALL
801 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
802
803 /*
804 * Returns the name of the field refered to at a given constant pool
805 * index.
806 *
807 * The result is in UTF format and remains valid until JVM_ReleaseUTF
808 * is called.
809 *
810 * The caller must treat the string as a constant and not modify it
811 * in any way.
812 */
813 JNIEXPORT const char * JNICALL
814 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
815
816 /*
817 * Returns the name of the method refered to at a given constant pool
818 * index.
819 *
820 * The result is in UTF format and remains valid until JVM_ReleaseUTF
821 * is called.
822 *
823 * The caller must treat the string as a constant and not modify it
824 * in any way.
825 */
826 JNIEXPORT const char * JNICALL
827 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
828
829 /*
830 * Returns the signature of the method refered to at a given constant pool
831 * index.
832 *
833 * The result is in UTF format and remains valid until JVM_ReleaseUTF
834 * is called.
835 *
836 * The caller must treat the string as a constant and not modify it
837 * in any way.
838 */
839 JNIEXPORT const char * JNICALL
840 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
841
842 /*
843 * Returns the signature of the field refered to at a given constant pool
844 * index.
845 *
846 * The result is in UTF format and remains valid until JVM_ReleaseUTF
847 * is called.
848 *
849 * The caller must treat the string as a constant and not modify it
850 * in any way.
851 */
852 JNIEXPORT const char * JNICALL
853 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
854
855 /*
856 * Returns the class name refered to at a given constant pool index.
857 *
858 * The result is in UTF format and remains valid until JVM_ReleaseUTF
859 * is called.
860 *
861 * The caller must treat the string as a constant and not modify it
862 * in any way.
863 */
864 JNIEXPORT const char * JNICALL
865 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
866
867 /*
868 * Returns the class name refered to at a given constant pool index.
869 *
870 * The constant pool entry must refer to a CONSTANT_Fieldref.
871 *
872 * The result is in UTF format and remains valid until JVM_ReleaseUTF
873 * is called.
874 *
875 * The caller must treat the string as a constant and not modify it
876 * in any way.
877 */
878 JNIEXPORT const char * JNICALL
879 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
880
881 /*
882 * Returns the class name refered to at a given constant pool index.
883 *
884 * The constant pool entry must refer to CONSTANT_Methodref or
885 * CONSTANT_InterfaceMethodref.
886 *
887 * The result is in UTF format and remains valid until JVM_ReleaseUTF
888 * is called.
889 *
890 * The caller must treat the string as a constant and not modify it
891 * in any way.
892 */
893 JNIEXPORT const char * JNICALL
894 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
895
896 /*
897 * Returns the modifiers of a field in calledClass. The field is
898 * referred to in class cb at constant pool entry index.
899 *
900 * The caller must treat the string as a constant and not modify it
901 * in any way.
902 *
903 * Returns -1 if the field does not exist in calledClass.
904 */
905 JNIEXPORT jint JNICALL
906 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
907
908 /*
909 * Returns the modifiers of a method in calledClass. The method is
910 * referred to in class cb at constant pool entry index.
911 *
912 * Returns -1 if the method does not exist in calledClass.
913 */
914 JNIEXPORT jint JNICALL
915 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
916
917 /*
918 * Releases the UTF string obtained from the VM.
919 */
920 JNIEXPORT void JNICALL
921 JVM_ReleaseUTF(const char *utf);
922
923 /*
924 * Compare if two classes are in the same package.
925 */
926 JNIEXPORT jboolean JNICALL
927 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
928
929 /* Constants in class files */
930
931 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
932 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
933 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
934 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
935 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
936 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
937 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
938 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
939 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
940 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
941 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
942 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
943 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
944 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
945 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
946 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
947 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
948 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
949 #define JVM_ACC_MODULE 0x8000 /* module-info class file */
950
951 #define JVM_ACC_PUBLIC_BIT 0
952 #define JVM_ACC_PRIVATE_BIT 1
953 #define JVM_ACC_PROTECTED_BIT 2
954 #define JVM_ACC_STATIC_BIT 3
955 #define JVM_ACC_FINAL_BIT 4
956 #define JVM_ACC_SYNCHRONIZED_BIT 5
957 #define JVM_ACC_SUPER_BIT 5
958 #define JVM_ACC_VOLATILE_BIT 6
959 #define JVM_ACC_BRIDGE_BIT 6
960 #define JVM_ACC_TRANSIENT_BIT 7
961 #define JVM_ACC_VARARGS_BIT 7
962 #define JVM_ACC_NATIVE_BIT 8
963 #define JVM_ACC_INTERFACE_BIT 9
964 #define JVM_ACC_ABSTRACT_BIT 10
965 #define JVM_ACC_STRICT_BIT 11
966 #define JVM_ACC_SYNTHETIC_BIT 12
967 #define JVM_ACC_ANNOTATION_BIT 13
968 #define JVM_ACC_ENUM_BIT 14
969
970 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
971 enum {
972 JVM_CONSTANT_Utf8 = 1,
973 JVM_CONSTANT_Unicode, /* unused */
974 JVM_CONSTANT_Integer,
975 JVM_CONSTANT_Float,
976 JVM_CONSTANT_Long,
977 JVM_CONSTANT_Double,
978 JVM_CONSTANT_Class,
979 JVM_CONSTANT_String,
980 JVM_CONSTANT_Fieldref,
981 JVM_CONSTANT_Methodref,
982 JVM_CONSTANT_InterfaceMethodref,
983 JVM_CONSTANT_NameAndType,
984 JVM_CONSTANT_MethodHandle = 15, // JSR 292
985 JVM_CONSTANT_MethodType = 16, // JSR 292
986 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
987 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
988 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
989 };
990
991 /* JVM_CONSTANT_MethodHandle subtypes */
992 enum {
993 JVM_REF_getField = 1,
994 JVM_REF_getStatic = 2,
995 JVM_REF_putField = 3,
996 JVM_REF_putStatic = 4,
997 JVM_REF_invokeVirtual = 5,
998 JVM_REF_invokeStatic = 6,
999 JVM_REF_invokeSpecial = 7,
1000 JVM_REF_newInvokeSpecial = 8,
1001 JVM_REF_invokeInterface = 9
1002 };
1003
1004 /* Used in the newarray instruction. */
1005
1006 #define JVM_T_BOOLEAN 4
1007 #define JVM_T_CHAR 5
1008 #define JVM_T_FLOAT 6
1009 #define JVM_T_DOUBLE 7
1010 #define JVM_T_BYTE 8
1011 #define JVM_T_SHORT 9
1012 #define JVM_T_INT 10
1013 #define JVM_T_LONG 11
1014
1015 /* JVM method signatures */
1016
1017 #define JVM_SIGNATURE_ARRAY '['
1018 #define JVM_SIGNATURE_BYTE 'B'
1019 #define JVM_SIGNATURE_CHAR 'C'
1020 #define JVM_SIGNATURE_CLASS 'L'
1021 #define JVM_SIGNATURE_ENDCLASS ';'
1022 #define JVM_SIGNATURE_ENUM 'E'
1023 #define JVM_SIGNATURE_FLOAT 'F'
1024 #define JVM_SIGNATURE_DOUBLE 'D'
1025 #define JVM_SIGNATURE_FUNC '('
1026 #define JVM_SIGNATURE_ENDFUNC ')'
1027 #define JVM_SIGNATURE_INT 'I'
1028 #define JVM_SIGNATURE_LONG 'J'
1029 #define JVM_SIGNATURE_SHORT 'S'
1030 #define JVM_SIGNATURE_VOID 'V'
1031 #define JVM_SIGNATURE_BOOLEAN 'Z'
1032
1033 /*
1034 * A function defined by the byte-code verifier and called by the VM.
1035 * This is not a function implemented in the VM.
1036 *
1037 * Returns JNI_FALSE if verification fails. A detailed error message
1038 * will be places in msg_buf, whose length is specified by buf_len.
1039 */
1040 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1041 jclass cb,
1042 char * msg_buf,
1043 jint buf_len);
1044
1045
1046 /*
1047 * Support for a VM-independent class format checker.
1048 */
1049 typedef struct {
1050 unsigned long code; /* byte code */
1051 unsigned long excs; /* exceptions */
1052 unsigned long etab; /* catch table */
1053 unsigned long lnum; /* line number */
1054 unsigned long lvar; /* local vars */
1055 } method_size_info;
1056
1057 typedef struct {
1058 unsigned int constants; /* constant pool */
1059 unsigned int fields;
1060 unsigned int methods;
1061 unsigned int interfaces;
1062 unsigned int fields2; /* number of static 2-word fields */
1063 unsigned int innerclasses; /* # of records in InnerClasses attr */
1064
1065 method_size_info clinit; /* memory used in clinit */
1066 method_size_info main; /* used everywhere else */
1067 } class_size_info;
1068
1069 /*
1070 * Functions defined in libjava.so to perform string conversions.
1071 *
1072 */
1073
1074 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1075
1076 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1077
1078 /* This is the function defined in libjava.so that performs class
1079 * format checks. This functions fills in size information about
1080 * the class file and returns:
1081 *
1082 * 0: good
1083 * -1: out of memory
1084 * -2: bad format
1085 * -3: unsupported version
1086 * -4: bad class name
1087 */
1088
1089 typedef jint (*check_format_fn_t)(char *class_name,
1090 unsigned char *data,
1091 unsigned int data_size,
1092 class_size_info *class_size,
1093 char *message_buffer,
1094 jint buffer_length,
1095 jboolean measure_only,
1096 jboolean check_relaxed);
1097
1098 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1099 JVM_ACC_FINAL | \
1100 JVM_ACC_SUPER | \
1101 JVM_ACC_INTERFACE | \
1102 JVM_ACC_ABSTRACT | \
1103 JVM_ACC_ANNOTATION | \
1104 JVM_ACC_ENUM | \
1105 JVM_ACC_SYNTHETIC)
1106
1107 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1108 JVM_ACC_PRIVATE | \
1109 JVM_ACC_PROTECTED | \
1110 JVM_ACC_STATIC | \
1111 JVM_ACC_FINAL | \
1112 JVM_ACC_VOLATILE | \
1113 JVM_ACC_TRANSIENT | \
1114 JVM_ACC_ENUM | \
1115 JVM_ACC_SYNTHETIC)
1116
1117 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1118 JVM_ACC_PRIVATE | \
1119 JVM_ACC_PROTECTED | \
1120 JVM_ACC_STATIC | \
1121 JVM_ACC_FINAL | \
1122 JVM_ACC_SYNCHRONIZED | \
1123 JVM_ACC_BRIDGE | \
1124 JVM_ACC_VARARGS | \
1125 JVM_ACC_NATIVE | \
1126 JVM_ACC_ABSTRACT | \
1127 JVM_ACC_STRICT | \
1128 JVM_ACC_SYNTHETIC)
1129
1130 /*
1131 * This is the function defined in libjava.so to perform path
1132 * canonicalization. VM call this function before opening jar files
1133 * to load system classes.
1134 *
1135 */
1136
1137 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1138
1139 /*************************************************************************
1140 PART 3: I/O and Network Support
1141 ************************************************************************/
1142
1143 /*
1144 * Convert a pathname into native format. This function does syntactic
1145 * cleanup, such as removing redundant separator characters. It modifies
1146 * the given pathname string in place.
1147 */
1148 JNIEXPORT char * JNICALL
1149 JVM_NativePath(char *);
1150
1151 /*
1152 * The standard printing functions supported by the Java VM. (Should they
1153 * be renamed to JVM_* in the future?
1154 */
1155
1156 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1157 * respectively, with the following differences:
1158 * - The string written to str is always zero-terminated, also in case of
1159 * truncation (count is too small to hold the result string), unless count
1160 * is 0. In case of truncation count-1 characters are written and '\0'
1161 * appendend.
1162 * - If count is too small to hold the whole string, -1 is returned across
1163 * all platforms. */
1164 JNIEXPORT int
1165 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1166
1167 JNIEXPORT int
1168 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1169
1170 JNIEXPORT int
1171 jio_fprintf(FILE *, const char *fmt, ...);
1172
1173 JNIEXPORT int
1174 jio_vfprintf(FILE *, const char *fmt, va_list args);
1175
1176
1177 JNIEXPORT void * JNICALL
1178 JVM_RawMonitorCreate(void);
1179
1180 JNIEXPORT void JNICALL
1181 JVM_RawMonitorDestroy(void *mon);
1182
1183 JNIEXPORT jint JNICALL
1184 JVM_RawMonitorEnter(void *mon);
1185
1186 JNIEXPORT void JNICALL
1187 JVM_RawMonitorExit(void *mon);
1188
1189 /*
1190 * java.lang.reflect.Method
1191 */
1192 JNIEXPORT jobject JNICALL
1193 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1194
1195 /*
1196 * java.lang.reflect.Constructor
1197 */
1198 JNIEXPORT jobject JNICALL
1199 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1200
1201 /*
1202 * java.lang.management support
1203 */
1204 JNIEXPORT void* JNICALL
1205 JVM_GetManagement(jint version);
1206
1207 /*
1208 * com.sun.tools.attach.VirtualMachine support
1209 *
1210 * Initialize the agent properties with the properties maintained in the VM.
1211 */
1212 JNIEXPORT jobject JNICALL
1213 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1214
1215 JNIEXPORT jstring JNICALL
1216 JVM_GetTemporaryDirectory(JNIEnv *env);
1217
1218 /* Generics reflection support.
1219 *
1220 * Returns information about the given class's EnclosingMethod
1221 * attribute, if present, or null if the class had no enclosing
1222 * method.
1223 *
1224 * If non-null, the returned array contains three elements. Element 0
1225 * is the java.lang.Class of which the enclosing method is a member,
1226 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1227 * method's name and descriptor, respectively.
1228 */
1229 JNIEXPORT jobjectArray JNICALL
1230 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1231
1232 /* =========================================================================
1233 * The following defines a private JVM interface that the JDK can query
1234 * for the JVM version and capabilities. sun.misc.Version defines
1235 * the methods for getting the VM version and its capabilities.
1236 *
1237 * When a new bit is added, the following should be updated to provide
1238 * access to the new capability:
1239 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1240 * SDK: Version class
1241 *
1242 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1243 * JVM to query for the JDK version and capabilities.
1244 *
1245 * When a new bit is added, the following should be updated to provide
1246 * access to the new capability:
1247 * HS: JDK_Version class
1248 * SDK: JDK_GetVersionInfo0
1249 *
1250 * ==========================================================================
1251 */
1252 typedef struct {
1253 unsigned int jvm_version; /* Encoded $VNUM as defined by JEP-223 */
1254 unsigned int patch_version : 8; /* JEP-223 patch version */
1255 unsigned int reserved3 : 8;
1256 unsigned int reserved1 : 16;
1257 unsigned int reserved2;
1258
1259 /* The following bits represents JVM supports that JDK has dependency on.
1260 * JDK can use these bits to determine which JVM version
1261 * and support it has to maintain runtime compatibility.
1262 *
1263 * When a new bit is added in a minor or update release, make sure
1264 * the new bit is also added in the main/baseline.
1265 */
1266 unsigned int is_attachable : 1;
1267 unsigned int : 31;
1268 unsigned int : 32;
1269 unsigned int : 32;
1270 } jvm_version_info;
1271
1272 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1273 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1274 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1275 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1276
1277 JNIEXPORT void JNICALL
1278 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1279
1280 typedef struct {
1281 unsigned int jdk_version; /* Encoded $VNUM as defined by JEP-223 */
1282 unsigned int patch_version : 8; /* JEP-223 patch version */
1283 unsigned int reserved3 : 8;
1284 unsigned int reserved1 : 16;
1285 unsigned int reserved2;
1286
1287 /* The following bits represents new JDK supports that VM has dependency on.
1288 * VM implementation can use these bits to determine which JDK version
1289 * and support it has to maintain runtime compatibility.
1290 *
1291 * When a new bit is added in a minor or update release, make sure
1292 * the new bit is also added in the main/baseline.
1293 */
1294 unsigned int thread_park_blocker : 1;
1295 unsigned int post_vm_init_hook_enabled : 1;
1296 unsigned int pending_list_uses_discovered_field : 1;
1297 unsigned int : 29;
1298 unsigned int : 32;
1299 unsigned int : 32;
1300 } jdk_version_info;
1301
1302 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1303 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1304 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1305 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1306
1307 /*
1308 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1309 * that is dynamically looked up by JVM.
1310 */
1311 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1312
1313 /*
1314 * This structure is used by the launcher to get the default thread
1315 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1316 * version of 1.1. As it is not supported otherwise, it has been removed
1317 * from jni.h
1318 */
1319 typedef struct JDK1_1InitArgs {
1320 jint version;
1321
1322 char **properties;
1323 jint checkSource;
1324 jint nativeStackSize;
1325 jint javaStackSize;
1326 jint minHeapSize;
1327 jint maxHeapSize;
1328 jint verifyMode;
1329 char *classpath;
1330
1331 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1332 void (JNICALL *exit)(jint code);
1333 void (JNICALL *abort)(void);
1334
1335 jint enableClassGC;
1336 jint enableVerboseGC;
1337 jint disableAsyncGC;
1338 jint verbose;
1339 jboolean debugging;
1340 jint debugPort;
1341 } JDK1_1InitArgs;
1342
1343 #ifdef __cplusplus
1344 } /* extern "C" */
1345 #endif /* __cplusplus */
1346
1347 #endif /* !_JAVASOFT_JVM_H_ */
1348
1349 #endif // SHARE_VM_PRIMS_JVM_H