1 /*
2 * Copyright (c) 1997, 2017, 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 "jni.h"
29 #include "utilities/macros.hpp"
30
31 #include OS_HEADER_H(jvm)
32
33 #ifndef _JAVASOFT_JVM_H_
34 #define _JAVASOFT_JVM_H_
35
36 // HotSpot integration note:
37 //
38 // This file and jvm.h used with the JDK are identical,
39 // except for the three includes removed below
40
41 // #include <sys/stat.h>
42 // #include "jni.h"
43 // #include "jvm_md.h"
44
45
46 #ifdef __cplusplus
47 extern "C" {
48 #endif
49
50 /*
51 * This file contains additional functions exported from the VM.
52 * These functions are complementary to the standard JNI support.
53 * There are three parts to this file:
54 *
55 * First, this file contains the VM-related functions needed by native
56 * libraries in the standard Java API. For example, the java.lang.Object
57 * class needs VM-level functions that wait for and notify monitors.
58 *
59 * Second, this file contains the functions and constant definitions
60 * needed by the byte code verifier and class file format checker.
61 * These functions allow the verifier and format checker to be written
62 * in a VM-independent way.
63 *
64 * Third, this file contains various I/O and nerwork operations needed
65 * by the standard Java I/O and network APIs.
66 */
67
68 /*
69 * Bump the version number when either of the following happens:
70 *
71 * 1. There is a change in JVM_* functions.
72 *
73 * 2. There is a change in the contract between VM and Java classes.
74 * For example, if the VM relies on a new private field in Thread
75 * class.
76 */
77
78 #define JVM_INTERFACE_VERSION 5
79
80 JNIEXPORT jobjectArray JNICALL
81 JVM_GetMethodParameters(JNIEnv *env, jobject method);
82
83 JNIEXPORT jint JNICALL
84 JVM_GetInterfaceVersion(void);
85
86 /*************************************************************************
87 PART 1: Functions for Native Libraries
88 ************************************************************************/
89 /*
90 * java.lang.Object
91 */
92 JNIEXPORT jint JNICALL
93 JVM_IHashCode(JNIEnv *env, jobject obj);
94
95 JNIEXPORT void JNICALL
96 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
97
98 JNIEXPORT void JNICALL
99 JVM_MonitorNotify(JNIEnv *env, jobject obj);
100
101 JNIEXPORT void JNICALL
102 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
103
104 JNIEXPORT jobject JNICALL
105 JVM_Clone(JNIEnv *env, jobject obj);
106
107 /*
108 * java.lang.String
109 */
110 JNIEXPORT jstring JNICALL
111 JVM_InternString(JNIEnv *env, jstring str);
112
113 /*
114 * java.lang.System
115 */
116 JNIEXPORT jlong JNICALL
117 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
118
119 JNIEXPORT jlong JNICALL
120 JVM_NanoTime(JNIEnv *env, jclass ignored);
121
122 JNIEXPORT jlong JNICALL
123 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);
124
125 JNIEXPORT void JNICALL
126 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
127 jobject dst, jint dst_pos, jint length);
128
129 JNIEXPORT jobject JNICALL
130 JVM_InitProperties(JNIEnv *env, jobject p);
131
132 /*
133 * java.lang.Runtime
134 */
135
136 JNIEXPORT void JNICALL
137 JVM_Halt(jint code);
138
139 JNIEXPORT void JNICALL
140 JVM_GC(void);
141
142 /* Returns the number of real-time milliseconds that have elapsed since the
143 * least-recently-inspected heap object was last inspected by the garbage
144 * collector.
145 *
146 * For simple stop-the-world collectors this value is just the time
147 * since the most recent collection. For generational collectors it is the
148 * time since the oldest generation was most recently collected. Other
149 * collectors are free to return a pessimistic estimate of the elapsed time, or
150 * simply the time since the last full collection was performed.
151 *
152 * Note that in the presence of reference objects, a given object that is no
153 * longer strongly reachable may have to be inspected multiple times before it
154 * can be reclaimed.
155 */
156 JNIEXPORT jlong JNICALL
157 JVM_MaxObjectInspectionAge(void);
158
159 JNIEXPORT jlong JNICALL
160 JVM_TotalMemory(void);
161
162 JNIEXPORT jlong JNICALL
163 JVM_FreeMemory(void);
164
165 JNIEXPORT jlong JNICALL
166 JVM_MaxMemory(void);
167
168 JNIEXPORT jint JNICALL
169 JVM_ActiveProcessorCount(void);
170
171 JNIEXPORT void * JNICALL
172 JVM_LoadLibrary(const char *name);
173
174 JNIEXPORT void JNICALL
175 JVM_UnloadLibrary(void * handle);
176
177 JNIEXPORT void * JNICALL
178 JVM_FindLibraryEntry(void *handle, const char *name);
179
180 JNIEXPORT jboolean JNICALL
181 JVM_IsSupportedJNIVersion(jint version);
182
183 JNIEXPORT jobjectArray JNICALL
184 JVM_GetVmArguments(JNIEnv *env);
185
186 /*
187 * java.lang.Throwable
188 */
189 JNIEXPORT void JNICALL
190 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
191
192 /*
193 * java.lang.StackTraceElement
194 */
195 JNIEXPORT void JNICALL
196 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);
197
198 JNIEXPORT void JNICALL
199 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);
200
201 /*
202 * java.lang.StackWalker
203 */
204 enum {
205 JVM_STACKWALK_FILL_CLASS_REFS_ONLY = 0x02,
206 JVM_STACKWALK_GET_CALLER_CLASS = 0x04,
207 JVM_STACKWALK_SHOW_HIDDEN_FRAMES = 0x20,
208 JVM_STACKWALK_FILL_LIVE_STACK_FRAMES = 0x100
209 };
210
211 JNIEXPORT jobject JNICALL
212 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,
213 jint skip_frames, jint frame_count, jint start_index,
214 jobjectArray frames);
215
216 JNIEXPORT jint JNICALL
217 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
218 jint frame_count, jint start_index,
219 jobjectArray frames);
220
221 /*
222 * java.lang.Thread
223 */
224 JNIEXPORT void JNICALL
225 JVM_StartThread(JNIEnv *env, jobject thread);
226
227 JNIEXPORT void JNICALL
228 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
229
230 JNIEXPORT jboolean JNICALL
231 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
232
233 JNIEXPORT void JNICALL
234 JVM_SuspendThread(JNIEnv *env, jobject thread);
235
236 JNIEXPORT void JNICALL
237 JVM_ResumeThread(JNIEnv *env, jobject thread);
238
239 JNIEXPORT void JNICALL
240 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
241
242 JNIEXPORT void JNICALL
243 JVM_Yield(JNIEnv *env, jclass threadClass);
244
245 JNIEXPORT void JNICALL
246 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
247
248 JNIEXPORT jobject JNICALL
249 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
250
251 JNIEXPORT jint JNICALL
252 JVM_CountStackFrames(JNIEnv *env, jobject thread);
253
254 JNIEXPORT void JNICALL
255 JVM_Interrupt(JNIEnv *env, jobject thread);
256
257 JNIEXPORT jboolean JNICALL
258 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
259
260 JNIEXPORT jboolean JNICALL
261 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
262
263 JNIEXPORT void JNICALL
264 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
265
266 JNIEXPORT jobjectArray JNICALL
267 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
268
269 JNIEXPORT void JNICALL
270 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
271
272 /* getStackTrace() and getAllStackTraces() method */
273 JNIEXPORT jobjectArray JNICALL
274 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
275
276 /*
277 * java.lang.SecurityManager
278 */
279 JNIEXPORT jclass JNICALL
280 JVM_CurrentLoadedClass(JNIEnv *env);
281
282 JNIEXPORT jobject JNICALL
283 JVM_CurrentClassLoader(JNIEnv *env);
284
285 JNIEXPORT jobjectArray JNICALL
286 JVM_GetClassContext(JNIEnv *env);
287
288 JNIEXPORT jint JNICALL
289 JVM_ClassDepth(JNIEnv *env, jstring name);
290
291 JNIEXPORT jint JNICALL
292 JVM_ClassLoaderDepth(JNIEnv *env);
293
294 /*
295 * java.lang.Package
296 */
297 JNIEXPORT jstring JNICALL
298 JVM_GetSystemPackage(JNIEnv *env, jstring name);
299
300 JNIEXPORT jobjectArray JNICALL
301 JVM_GetSystemPackages(JNIEnv *env);
302
303 /*
304 * java.lang.ref.Reference
305 */
306 JNIEXPORT jobject JNICALL
307 JVM_GetAndClearReferencePendingList(JNIEnv *env);
308
309 JNIEXPORT jboolean JNICALL
310 JVM_HasReferencePendingList(JNIEnv *env);
311
312 JNIEXPORT void JNICALL
313 JVM_WaitForReferencePendingList(JNIEnv *env);
314
315 /*
316 * java.io.ObjectInputStream
317 */
318 JNIEXPORT jobject JNICALL
319 JVM_LatestUserDefinedLoader(JNIEnv *env);
320
321 /*
322 * java.lang.reflect.Array
323 */
324 JNIEXPORT jint JNICALL
325 JVM_GetArrayLength(JNIEnv *env, jobject arr);
326
327 JNIEXPORT jobject JNICALL
328 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
329
330 JNIEXPORT jvalue JNICALL
331 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
332
333 JNIEXPORT void JNICALL
334 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
335
336 JNIEXPORT void JNICALL
337 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
338 unsigned char vCode);
339
340 JNIEXPORT jobject JNICALL
341 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
342
343 JNIEXPORT jobject JNICALL
344 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
345
346 /*
347 * java.lang.Class and java.lang.ClassLoader
348 */
349
350 #define JVM_CALLER_DEPTH -1
351
352 /*
353 * Returns the class in which the code invoking the native method
354 * belongs.
355 *
356 * Note that in JDK 1.1, native methods did not create a frame.
357 * In 1.2, they do. Therefore native methods like Class.forName
358 * can no longer look at the current frame for the caller class.
359 */
360 JNIEXPORT jclass JNICALL
361 JVM_GetCallerClass(JNIEnv *env, int n);
362
363 /*
364 * Find primitive classes
365 * utf: class name
366 */
367 JNIEXPORT jclass JNICALL
368 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
369
370 /*
371 * Find a class from a boot class loader. Returns NULL if class not found.
372 */
373 JNIEXPORT jclass JNICALL
374 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
375
376 /*
377 * Find a class from a given class loader. Throws ClassNotFoundException.
378 * name: name of class
379 * init: whether initialization is done
380 * loader: class loader to look up the class. This may not be the same as the caller's
381 * class loader.
382 * caller: initiating class. The initiating class may be null when a security
383 * manager is not installed.
384 */
385 JNIEXPORT jclass JNICALL
386 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
387 jobject loader, jclass caller);
388
389 /*
390 * Find a class from a given class.
391 */
392 JNIEXPORT jclass JNICALL
393 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
394 jclass from);
395
396 /* Find a loaded class cached by the VM */
397 JNIEXPORT jclass JNICALL
398 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
399
400 /* Define a class */
401 JNIEXPORT jclass JNICALL
402 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
403 jsize len, jobject pd);
404
405 /* Define a class with a source (added in JDK1.5) */
406 JNIEXPORT jclass JNICALL
407 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
408 const jbyte *buf, jsize len, jobject pd,
409 const char *source);
410
411 /*
412 * Module support funcions
413 */
414
415 /*
416 * Define a module with the specified packages and bind the module to the
417 * given class loader.
418 * module: module to define
419 * is_open: specifies if module is open (currently ignored)
420 * version: the module version
421 * location: the module location
422 * packages: list of packages in the module
423 * num_packages: number of packages in the module
424 */
425 JNIEXPORT void JNICALL
426 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,
427 jstring location, const char* const* packages, jsize num_packages);
428
429 /*
430 * Set the boot loader's unnamed module.
431 * module: boot loader's unnamed module
432 */
433 JNIEXPORT void JNICALL
434 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);
435
436 /*
437 * Do a qualified export of a package.
438 * from_module: module containing the package to export
439 * package: name of the package to export
440 * to_module: module to export the package to
441 */
442 JNIEXPORT void JNICALL
443 JVM_AddModuleExports(JNIEnv *env, jobject from_module, const char* package, jobject to_module);
444
445 /*
446 * Do an export of a package to all unnamed modules.
447 * from_module: module containing the package to export
448 * package: name of the package to export to all unnamed modules
449 */
450 JNIEXPORT void JNICALL
451 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, const char* package);
452
453 /*
454 * Do an unqualified export of a package.
455 * from_module: module containing the package to export
456 * package: name of the package to export
457 */
458 JNIEXPORT void JNICALL
459 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, const char* package);
460
461 /*
462 * Add a module to the list of modules that a given module can read.
463 * from_module: module requesting read access
464 * source_module: module that from_module wants to read
465 */
466 JNIEXPORT void JNICALL
467 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);
468
469 /*
470 * Reflection support functions
471 */
472
473 JNIEXPORT jstring JNICALL
474 JVM_GetClassName(JNIEnv *env, jclass cls);
475
476 JNIEXPORT jobjectArray JNICALL
477 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
478
479 JNIEXPORT jboolean JNICALL
480 JVM_IsInterface(JNIEnv *env, jclass cls);
481
482 JNIEXPORT jobjectArray JNICALL
483 JVM_GetClassSigners(JNIEnv *env, jclass cls);
484
485 JNIEXPORT void JNICALL
486 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
487
488 JNIEXPORT jobject JNICALL
489 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
490
491 JNIEXPORT jboolean JNICALL
492 JVM_IsArrayClass(JNIEnv *env, jclass cls);
493
494 JNIEXPORT jboolean JNICALL
495 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
496
497 JNIEXPORT jint JNICALL
498 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
499
500 JNIEXPORT jobjectArray JNICALL
501 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
502
503 JNIEXPORT jclass JNICALL
504 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
505
506 JNIEXPORT jstring JNICALL
507 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
508
509 /* Generics support (JDK 1.5) */
510 JNIEXPORT jstring JNICALL
511 JVM_GetClassSignature(JNIEnv *env, jclass cls);
512
513 /* Annotations support (JDK 1.5) */
514 JNIEXPORT jbyteArray JNICALL
515 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
516
517 /* Annotations support (JDK 1.6) */
518
519 /* Type use annotations support (JDK 1.8) */
520
521 JNIEXPORT jbyteArray JNICALL
522 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
523
524 // field is a handle to a java.lang.reflect.Field object
525 JNIEXPORT jbyteArray JNICALL
526 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
527
528 // method is a handle to a java.lang.reflect.Method object
529 JNIEXPORT jbyteArray JNICALL
530 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
531
532 /*
533 * New (JDK 1.4) reflection implementation
534 */
535
536 JNIEXPORT jobjectArray JNICALL
537 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
538
539 JNIEXPORT jobjectArray JNICALL
540 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
541
542 JNIEXPORT jobjectArray JNICALL
543 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
544
545 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
546 This returns the access flags for the class as specified in the
547 class file rather than searching the InnerClasses attribute (if
548 present) to find the source-level access flags. Only the values of
549 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
550 valid. */
551 JNIEXPORT jint JNICALL
552 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
553
554 /*
555 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
556 */
557
558 JNIEXPORT jobject JNICALL
559 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
560
561 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
562 (JNIEnv *env, jobject obj, jobject unused);
563
564 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
565 (JNIEnv *env, jobject obj, jobject unused, jint index);
566
567 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
568 (JNIEnv *env, jobject obj, jobject unused, jint index);
569
570 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
571 (JNIEnv *env, jobject obj, jobject unused, jint index);
572
573 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
574 (JNIEnv *env, jobject obj, jobject unused, jint index);
575
576 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
577 (JNIEnv *env, jobject obj, jobject unused, jint index);
578
579 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
580 (JNIEnv *env, jobject obj, jobject unused, jint index);
581
582 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
583 (JNIEnv *env, jobject obj, jobject unused, jint index);
584
585 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
586 (JNIEnv *env, jobject obj, jobject unused, jint index);
587
588 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
589 (JNIEnv *env, jobject obj, jobject unused, jint index);
590
591 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
592 (JNIEnv *env, jobject obj, jobject unused, jint index);
593
594 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
595 (JNIEnv *env, jobject obj, jobject unused, jint index);
596
597 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
598 (JNIEnv *env, jobject obj, jobject unused, jint index);
599
600 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
601 (JNIEnv *env, jobject obj, jobject unused, jint index);
602
603 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
604 (JNIEnv *env, jobject obj, jobject unused, jint index);
605
606 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
607 (JNIEnv *env, jobject obj, jobject unused, jint index);
608
609 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
610 (JNIEnv *env, jobject obj, jobject unused, jint index);
611
612 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
613 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
614
615 /*
616 * java.security.*
617 */
618
619 JNIEXPORT jobject JNICALL
620 JVM_DoPrivileged(JNIEnv *env, jclass cls,
621 jobject action, jobject context, jboolean wrapException);
622
623 JNIEXPORT jobject JNICALL
624 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
625
626 JNIEXPORT jobject JNICALL
627 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
628
629 /*
630 * Signal support, used to implement the shutdown sequence. Every VM must
631 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
632 * (^C) and the latter for external termination (kill, system shutdown, etc.).
633 * Other platform-dependent signal values may also be supported.
634 */
635
636 JNIEXPORT void * JNICALL
637 JVM_RegisterSignal(jint sig, void *handler);
638
639 JNIEXPORT jboolean JNICALL
640 JVM_RaiseSignal(jint sig);
641
642 JNIEXPORT jint JNICALL
643 JVM_FindSignal(const char *name);
644
645 /*
646 * Retrieve the assertion directives for the specified class.
647 */
648 JNIEXPORT jboolean JNICALL
649 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
650
651 /*
652 * Retrieve the assertion directives from the VM.
653 */
654 JNIEXPORT jobject JNICALL
655 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
656
657 /*
658 * java.util.concurrent.atomic.AtomicLong
659 */
660 JNIEXPORT jboolean JNICALL
661 JVM_SupportsCX8(void);
662
663 /*************************************************************************
664 PART 2: Support for the Verifier and Class File Format Checker
665 ************************************************************************/
666 /*
667 * Return the class name in UTF format. The result is valid
668 * until JVM_ReleaseUTf is called.
669 *
670 * The caller must treat the string as a constant and not modify it
671 * in any way.
672 */
673 JNIEXPORT const char * JNICALL
674 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
675
676 /*
677 * Returns the constant pool types in the buffer provided by "types."
678 */
679 JNIEXPORT void JNICALL
680 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
681
682 /*
683 * Returns the number of Constant Pool entries.
684 */
685 JNIEXPORT jint JNICALL
686 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
687
688 /*
689 * Returns the number of *declared* fields or methods.
690 */
691 JNIEXPORT jint JNICALL
692 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
693
694 JNIEXPORT jint JNICALL
695 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
696
697 /*
698 * Returns the CP indexes of exceptions raised by a given method.
699 * Places the result in the given buffer.
700 *
701 * The method is identified by method_index.
702 */
703 JNIEXPORT void JNICALL
704 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
705 unsigned short *exceptions);
706 /*
707 * Returns the number of exceptions raised by a given method.
708 * The method is identified by method_index.
709 */
710 JNIEXPORT jint JNICALL
711 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
712
713 /*
714 * Returns the byte code sequence of a given method.
715 * Places the result in the given buffer.
716 *
717 * The method is identified by method_index.
718 */
719 JNIEXPORT void JNICALL
720 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
721 unsigned char *code);
722
723 /*
724 * Returns the length of the byte code sequence of a given method.
725 * The method is identified by method_index.
726 */
727 JNIEXPORT jint JNICALL
728 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
729
730 /*
731 * A structure used to a capture exception table entry in a Java method.
732 */
733 typedef struct {
734 jint start_pc;
735 jint end_pc;
736 jint handler_pc;
737 jint catchType;
738 } JVM_ExceptionTableEntryType;
739
740 /*
741 * Returns the exception table entry at entry_index of a given method.
742 * Places the result in the given buffer.
743 *
744 * The method is identified by method_index.
745 */
746 JNIEXPORT void JNICALL
747 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
748 jint entry_index,
749 JVM_ExceptionTableEntryType *entry);
750
751 /*
752 * Returns the length of the exception table of a given method.
753 * The method is identified by method_index.
754 */
755 JNIEXPORT jint JNICALL
756 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
757
758 /*
759 * Returns the modifiers of a given field.
760 * The field is identified by field_index.
761 */
762 JNIEXPORT jint JNICALL
763 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
764
765 /*
766 * Returns the modifiers of a given method.
767 * The method is identified by method_index.
768 */
769 JNIEXPORT jint JNICALL
770 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
771
772 /*
773 * Returns the number of local variables of a given method.
774 * The method is identified by method_index.
775 */
776 JNIEXPORT jint JNICALL
777 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
778
779 /*
780 * Returns the number of arguments (including this pointer) of a given method.
781 * The method is identified by method_index.
782 */
783 JNIEXPORT jint JNICALL
784 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
785
786 /*
787 * Returns the maximum amount of stack (in words) used by a given method.
788 * The method is identified by method_index.
789 */
790 JNIEXPORT jint JNICALL
791 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
792
793 /*
794 * Is a given method a constructor.
795 * The method is identified by method_index.
796 */
797 JNIEXPORT jboolean JNICALL
798 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
799
800 /*
801 * Is the given method generated by the VM.
802 * The method is identified by method_index.
803 */
804 JNIEXPORT jboolean JNICALL
805 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
806
807 /*
808 * Returns the name of a given method in UTF format.
809 * The result remains valid until JVM_ReleaseUTF is called.
810 *
811 * The caller must treat the string as a constant and not modify it
812 * in any way.
813 */
814 JNIEXPORT const char * JNICALL
815 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
816
817 /*
818 * Returns the signature of a given method in UTF format.
819 * The result remains valid until JVM_ReleaseUTF 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_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
826
827 /*
828 * Returns the name of the field 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_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
839
840 /*
841 * Returns the name of the method 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_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
852
853 /*
854 * Returns the signature of the method refered to at a given constant pool
855 * index.
856 *
857 * The result is in UTF format and remains valid until JVM_ReleaseUTF
858 * is called.
859 *
860 * The caller must treat the string as a constant and not modify it
861 * in any way.
862 */
863 JNIEXPORT const char * JNICALL
864 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
865
866 /*
867 * Returns the signature of the field refered to at a given constant pool
868 * index.
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_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
878
879 /*
880 * Returns the class name refered to at a given constant pool index.
881 *
882 * The result is in UTF format and remains valid until JVM_ReleaseUTF
883 * is called.
884 *
885 * The caller must treat the string as a constant and not modify it
886 * in any way.
887 */
888 JNIEXPORT const char * JNICALL
889 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
890
891 /*
892 * Returns the class name refered to at a given constant pool index.
893 *
894 * The constant pool entry must refer to a CONSTANT_Fieldref.
895 *
896 * The result is in UTF format and remains valid until JVM_ReleaseUTF
897 * is called.
898 *
899 * The caller must treat the string as a constant and not modify it
900 * in any way.
901 */
902 JNIEXPORT const char * JNICALL
903 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
904
905 /*
906 * Returns the class name refered to at a given constant pool index.
907 *
908 * The constant pool entry must refer to CONSTANT_Methodref or
909 * CONSTANT_InterfaceMethodref.
910 *
911 * The result is in UTF format and remains valid until JVM_ReleaseUTF
912 * is called.
913 *
914 * The caller must treat the string as a constant and not modify it
915 * in any way.
916 */
917 JNIEXPORT const char * JNICALL
918 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
919
920 /*
921 * Returns the modifiers of a field in calledClass. The field is
922 * referred to in class cb at constant pool entry index.
923 *
924 * The caller must treat the string as a constant and not modify it
925 * in any way.
926 *
927 * Returns -1 if the field does not exist in calledClass.
928 */
929 JNIEXPORT jint JNICALL
930 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
931
932 /*
933 * Returns the modifiers of a method in calledClass. The method is
934 * referred to in class cb at constant pool entry index.
935 *
936 * Returns -1 if the method does not exist in calledClass.
937 */
938 JNIEXPORT jint JNICALL
939 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
940
941 /*
942 * Releases the UTF string obtained from the VM.
943 */
944 JNIEXPORT void JNICALL
945 JVM_ReleaseUTF(const char *utf);
946
947 /*
948 * Compare if two classes are in the same package.
949 */
950 JNIEXPORT jboolean JNICALL
951 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
952
953 /* Constants in class files */
954
955 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
956 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
957 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
958 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
959 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
960 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
961 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
962 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
963 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
964 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
965 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
966 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
967 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
968 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
969 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
970 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
971 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
972 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
973 #define JVM_ACC_MODULE 0x8000 /* module-info class file */
974
975 #define JVM_ACC_PUBLIC_BIT 0
976 #define JVM_ACC_PRIVATE_BIT 1
977 #define JVM_ACC_PROTECTED_BIT 2
978 #define JVM_ACC_STATIC_BIT 3
979 #define JVM_ACC_FINAL_BIT 4
980 #define JVM_ACC_SYNCHRONIZED_BIT 5
981 #define JVM_ACC_SUPER_BIT 5
982 #define JVM_ACC_VOLATILE_BIT 6
983 #define JVM_ACC_BRIDGE_BIT 6
984 #define JVM_ACC_TRANSIENT_BIT 7
985 #define JVM_ACC_VARARGS_BIT 7
986 #define JVM_ACC_NATIVE_BIT 8
987 #define JVM_ACC_INTERFACE_BIT 9
988 #define JVM_ACC_ABSTRACT_BIT 10
989 #define JVM_ACC_STRICT_BIT 11
990 #define JVM_ACC_SYNTHETIC_BIT 12
991 #define JVM_ACC_ANNOTATION_BIT 13
992 #define JVM_ACC_ENUM_BIT 14
993
994 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
995 enum {
996 JVM_CONSTANT_Utf8 = 1,
997 JVM_CONSTANT_Unicode, /* unused */
998 JVM_CONSTANT_Integer,
999 JVM_CONSTANT_Float,
1000 JVM_CONSTANT_Long,
1001 JVM_CONSTANT_Double,
1002 JVM_CONSTANT_Class,
1003 JVM_CONSTANT_String,
1004 JVM_CONSTANT_Fieldref,
1005 JVM_CONSTANT_Methodref,
1006 JVM_CONSTANT_InterfaceMethodref,
1007 JVM_CONSTANT_NameAndType,
1008 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1009 JVM_CONSTANT_MethodType = 16, // JSR 292
1010 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1011 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1012 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
1013 };
1014
1015 /* JVM_CONSTANT_MethodHandle subtypes */
1016 enum {
1017 JVM_REF_getField = 1,
1018 JVM_REF_getStatic = 2,
1019 JVM_REF_putField = 3,
1020 JVM_REF_putStatic = 4,
1021 JVM_REF_invokeVirtual = 5,
1022 JVM_REF_invokeStatic = 6,
1023 JVM_REF_invokeSpecial = 7,
1024 JVM_REF_newInvokeSpecial = 8,
1025 JVM_REF_invokeInterface = 9
1026 };
1027
1028 /* Used in the newarray instruction. */
1029
1030 #define JVM_T_BOOLEAN 4
1031 #define JVM_T_CHAR 5
1032 #define JVM_T_FLOAT 6
1033 #define JVM_T_DOUBLE 7
1034 #define JVM_T_BYTE 8
1035 #define JVM_T_SHORT 9
1036 #define JVM_T_INT 10
1037 #define JVM_T_LONG 11
1038
1039 /* JVM method signatures */
1040
1041 #define JVM_SIGNATURE_ARRAY '['
1042 #define JVM_SIGNATURE_BYTE 'B'
1043 #define JVM_SIGNATURE_CHAR 'C'
1044 #define JVM_SIGNATURE_CLASS 'L'
1045 #define JVM_SIGNATURE_ENDCLASS ';'
1046 #define JVM_SIGNATURE_ENUM 'E'
1047 #define JVM_SIGNATURE_FLOAT 'F'
1048 #define JVM_SIGNATURE_DOUBLE 'D'
1049 #define JVM_SIGNATURE_FUNC '('
1050 #define JVM_SIGNATURE_ENDFUNC ')'
1051 #define JVM_SIGNATURE_INT 'I'
1052 #define JVM_SIGNATURE_LONG 'J'
1053 #define JVM_SIGNATURE_SHORT 'S'
1054 #define JVM_SIGNATURE_VOID 'V'
1055 #define JVM_SIGNATURE_BOOLEAN 'Z'
1056
1057 /*
1058 * A function defined by the byte-code verifier and called by the VM.
1059 * This is not a function implemented in the VM.
1060 *
1061 * Returns JNI_FALSE if verification fails. A detailed error message
1062 * will be places in msg_buf, whose length is specified by buf_len.
1063 */
1064 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1065 jclass cb,
1066 char * msg_buf,
1067 jint buf_len);
1068
1069
1070 /*
1071 * Support for a VM-independent class format checker.
1072 */
1073 typedef struct {
1074 unsigned long code; /* byte code */
1075 unsigned long excs; /* exceptions */
1076 unsigned long etab; /* catch table */
1077 unsigned long lnum; /* line number */
1078 unsigned long lvar; /* local vars */
1079 } method_size_info;
1080
1081 typedef struct {
1082 unsigned int constants; /* constant pool */
1083 unsigned int fields;
1084 unsigned int methods;
1085 unsigned int interfaces;
1086 unsigned int fields2; /* number of static 2-word fields */
1087 unsigned int innerclasses; /* # of records in InnerClasses attr */
1088
1089 method_size_info clinit; /* memory used in clinit */
1090 method_size_info main; /* used everywhere else */
1091 } class_size_info;
1092
1093 /*
1094 * Functions defined in libjava.so to perform string conversions.
1095 *
1096 */
1097
1098 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1099
1100 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1101
1102 /* This is the function defined in libjava.so that performs class
1103 * format checks. This functions fills in size information about
1104 * the class file and returns:
1105 *
1106 * 0: good
1107 * -1: out of memory
1108 * -2: bad format
1109 * -3: unsupported version
1110 * -4: bad class name
1111 */
1112
1113 typedef jint (*check_format_fn_t)(char *class_name,
1114 unsigned char *data,
1115 unsigned int data_size,
1116 class_size_info *class_size,
1117 char *message_buffer,
1118 jint buffer_length,
1119 jboolean measure_only,
1120 jboolean check_relaxed);
1121
1122 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1123 JVM_ACC_FINAL | \
1124 JVM_ACC_SUPER | \
1125 JVM_ACC_INTERFACE | \
1126 JVM_ACC_ABSTRACT | \
1127 JVM_ACC_ANNOTATION | \
1128 JVM_ACC_ENUM | \
1129 JVM_ACC_SYNTHETIC)
1130
1131 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1132 JVM_ACC_PRIVATE | \
1133 JVM_ACC_PROTECTED | \
1134 JVM_ACC_STATIC | \
1135 JVM_ACC_FINAL | \
1136 JVM_ACC_VOLATILE | \
1137 JVM_ACC_TRANSIENT | \
1138 JVM_ACC_ENUM | \
1139 JVM_ACC_SYNTHETIC)
1140
1141 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1142 JVM_ACC_PRIVATE | \
1143 JVM_ACC_PROTECTED | \
1144 JVM_ACC_STATIC | \
1145 JVM_ACC_FINAL | \
1146 JVM_ACC_SYNCHRONIZED | \
1147 JVM_ACC_BRIDGE | \
1148 JVM_ACC_VARARGS | \
1149 JVM_ACC_NATIVE | \
1150 JVM_ACC_ABSTRACT | \
1151 JVM_ACC_STRICT | \
1152 JVM_ACC_SYNTHETIC)
1153
1154 /*
1155 * This is the function defined in libjava.so to perform path
1156 * canonicalization. VM call this function before opening jar files
1157 * to load system classes.
1158 *
1159 */
1160
1161 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1162
1163 /*************************************************************************
1164 PART 3: I/O and Network Support
1165 ************************************************************************/
1166
1167 /*
1168 * Convert a pathname into native format. This function does syntactic
1169 * cleanup, such as removing redundant separator characters. It modifies
1170 * the given pathname string in place.
1171 */
1172 JNIEXPORT char * JNICALL
1173 JVM_NativePath(char *);
1174
1175 /*
1176 * The standard printing functions supported by the Java VM. (Should they
1177 * be renamed to JVM_* in the future?
1178 */
1179
1180 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1181 * respectively, with the following differences:
1182 * - The string written to str is always zero-terminated, also in case of
1183 * truncation (count is too small to hold the result string), unless count
1184 * is 0. In case of truncation count-1 characters are written and '\0'
1185 * appendend.
1186 * - If count is too small to hold the whole string, -1 is returned across
1187 * all platforms. */
1188 JNIEXPORT int
1189 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1190
1191 JNIEXPORT int
1192 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1193
1194 JNIEXPORT int
1195 jio_fprintf(FILE *, const char *fmt, ...);
1196
1197 JNIEXPORT int
1198 jio_vfprintf(FILE *, const char *fmt, va_list args);
1199
1200
1201 JNIEXPORT void * JNICALL
1202 JVM_RawMonitorCreate(void);
1203
1204 JNIEXPORT void JNICALL
1205 JVM_RawMonitorDestroy(void *mon);
1206
1207 JNIEXPORT jint JNICALL
1208 JVM_RawMonitorEnter(void *mon);
1209
1210 JNIEXPORT void JNICALL
1211 JVM_RawMonitorExit(void *mon);
1212
1213 /*
1214 * java.lang.reflect.Method
1215 */
1216 JNIEXPORT jobject JNICALL
1217 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1218
1219 /*
1220 * java.lang.reflect.Constructor
1221 */
1222 JNIEXPORT jobject JNICALL
1223 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1224
1225 /*
1226 * java.lang.management support
1227 */
1228 JNIEXPORT void* JNICALL
1229 JVM_GetManagement(jint version);
1230
1231 /*
1232 * com.sun.tools.attach.VirtualMachine support
1233 *
1234 * Initialize the agent properties with the properties maintained in the VM.
1235 */
1236 JNIEXPORT jobject JNICALL
1237 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1238
1239 JNIEXPORT jstring JNICALL
1240 JVM_GetTemporaryDirectory(JNIEnv *env);
1241
1242 /* Generics reflection support.
1243 *
1244 * Returns information about the given class's EnclosingMethod
1245 * attribute, if present, or null if the class had no enclosing
1246 * method.
1247 *
1248 * If non-null, the returned array contains three elements. Element 0
1249 * is the java.lang.Class of which the enclosing method is a member,
1250 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1251 * method's name and descriptor, respectively.
1252 */
1253 JNIEXPORT jobjectArray JNICALL
1254 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1255
1256 /* =========================================================================
1257 * The following defines a private JVM interface that the JDK can query
1258 * for the JVM version and capabilities. sun.misc.Version defines
1259 * the methods for getting the VM version and its capabilities.
1260 *
1261 * When a new bit is added, the following should be updated to provide
1262 * access to the new capability:
1263 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1264 * SDK: Version class
1265 *
1266 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1267 * JVM to query for the JDK version and capabilities.
1268 *
1269 * When a new bit is added, the following should be updated to provide
1270 * access to the new capability:
1271 * HS: JDK_Version class
1272 * SDK: JDK_GetVersionInfo0
1273 *
1274 * ==========================================================================
1275 */
1276 typedef struct {
1277 unsigned int jvm_version; /* Encoded $VNUM as defined by JEP-223 */
1278 unsigned int patch_version : 8; /* JEP-223 patch version */
1279 unsigned int reserved3 : 8;
1280 unsigned int reserved1 : 16;
1281 unsigned int reserved2;
1282
1283 /* The following bits represents JVM supports that JDK has dependency on.
1284 * JDK can use these bits to determine which JVM version
1285 * and support it has to maintain runtime compatibility.
1286 *
1287 * When a new bit is added in a minor or update release, make sure
1288 * the new bit is also added in the main/baseline.
1289 */
1290 unsigned int is_attachable : 1;
1291 unsigned int : 31;
1292 unsigned int : 32;
1293 unsigned int : 32;
1294 } jvm_version_info;
1295
1296 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1297 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1298 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1299 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1300
1301 JNIEXPORT void JNICALL
1302 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1303
1304 typedef struct {
1305 unsigned int jdk_version; /* Encoded $VNUM as defined by JEP-223 */
1306 unsigned int patch_version : 8; /* JEP-223 patch version */
1307 unsigned int reserved3 : 8;
1308 unsigned int reserved1 : 16;
1309 unsigned int reserved2;
1310
1311 /* The following bits represents new JDK supports that VM has dependency on.
1312 * VM implementation can use these bits to determine which JDK version
1313 * and support it has to maintain runtime compatibility.
1314 *
1315 * When a new bit is added in a minor or update release, make sure
1316 * the new bit is also added in the main/baseline.
1317 */
1318 unsigned int thread_park_blocker : 1;
1319 unsigned int post_vm_init_hook_enabled : 1;
1320 unsigned int pending_list_uses_discovered_field : 1;
1321 unsigned int : 29;
1322 unsigned int : 32;
1323 unsigned int : 32;
1324 } jdk_version_info;
1325
1326 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1327 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1328 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1329 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1330
1331 /*
1332 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1333 * that is dynamically looked up by JVM.
1334 */
1335 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1336
1337 /*
1338 * This structure is used by the launcher to get the default thread
1339 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1340 * version of 1.1. As it is not supported otherwise, it has been removed
1341 * from jni.h
1342 */
1343 typedef struct JDK1_1InitArgs {
1344 jint version;
1345
1346 char **properties;
1347 jint checkSource;
1348 jint nativeStackSize;
1349 jint javaStackSize;
1350 jint minHeapSize;
1351 jint maxHeapSize;
1352 jint verifyMode;
1353 char *classpath;
1354
1355 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1356 void (JNICALL *exit)(jint code);
1357 void (JNICALL *abort)(void);
1358
1359 jint enableClassGC;
1360 jint enableVerboseGC;
1361 jint disableAsyncGC;
1362 jint verbose;
1363 jboolean debugging;
1364 jint debugPort;
1365 } JDK1_1InitArgs;
1366
1367 #ifdef __cplusplus
1368 } /* extern "C" */
1369 #endif /* __cplusplus */
1370
1371 #endif /* !_JAVASOFT_JVM_H_ */
1372
1373 #endif // SHARE_VM_PRIMS_JVM_H