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_FILTER_FILL_IN_STACK_TRACE = 0x10,
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 classes,
221 jobjectArray frames);
222
223 JNIEXPORT jint JNICALL
224 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,
225 jint frame_count, jint start_index,
226 jobjectArray classes,
227 jobjectArray frames);
228
229 JNIEXPORT void JNICALL
230 JVM_FillStackFrames(JNIEnv* env, jclass cls,
231 jint start_index,
232 jobjectArray frames,
233 jint from_index, jint toIndex);
234
235 JNIEXPORT void JNICALL
236 JVM_SetMethodInfo(JNIEnv* env, jobject frame);
237
238 /*
239 * java.lang.Thread
240 */
241 JNIEXPORT void JNICALL
242 JVM_StartThread(JNIEnv *env, jobject thread);
243
244 JNIEXPORT void JNICALL
245 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
246
247 JNIEXPORT jboolean JNICALL
248 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
249
250 JNIEXPORT void JNICALL
251 JVM_SuspendThread(JNIEnv *env, jobject thread);
252
253 JNIEXPORT void JNICALL
254 JVM_ResumeThread(JNIEnv *env, jobject thread);
255
256 JNIEXPORT void JNICALL
257 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
258
259 JNIEXPORT void JNICALL
260 JVM_Yield(JNIEnv *env, jclass threadClass);
261
262 JNIEXPORT void JNICALL
263 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
264
265 JNIEXPORT jobject JNICALL
266 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
267
268 JNIEXPORT jint JNICALL
269 JVM_CountStackFrames(JNIEnv *env, jobject thread);
270
271 JNIEXPORT void JNICALL
272 JVM_Interrupt(JNIEnv *env, jobject thread);
273
274 JNIEXPORT jboolean JNICALL
275 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
276
277 JNIEXPORT jboolean JNICALL
278 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
279
280 JNIEXPORT void JNICALL
281 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
282
283 JNIEXPORT jobjectArray JNICALL
284 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
285
286 JNIEXPORT void JNICALL
287 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
288
289 /* getStackTrace() and getAllStackTraces() method */
290 JNIEXPORT jobjectArray JNICALL
291 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
292
293 /*
294 * java.lang.SecurityManager
295 */
296 JNIEXPORT jclass JNICALL
297 JVM_CurrentLoadedClass(JNIEnv *env);
298
299 JNIEXPORT jobject JNICALL
300 JVM_CurrentClassLoader(JNIEnv *env);
301
302 JNIEXPORT jobjectArray JNICALL
303 JVM_GetClassContext(JNIEnv *env);
304
305 JNIEXPORT jint JNICALL
306 JVM_ClassDepth(JNIEnv *env, jstring name);
307
308 JNIEXPORT jint JNICALL
309 JVM_ClassLoaderDepth(JNIEnv *env);
310
311 /*
312 * java.lang.Package
313 */
314 JNIEXPORT jstring JNICALL
315 JVM_GetSystemPackage(JNIEnv *env, jstring name);
316
317 JNIEXPORT jobjectArray JNICALL
318 JVM_GetSystemPackages(JNIEnv *env);
319
320 /*
321 * java.io.ObjectInputStream
322 */
323 JNIEXPORT jobject JNICALL
324 JVM_LatestUserDefinedLoader(JNIEnv *env);
325
326 /*
327 * java.lang.reflect.Array
328 */
329 JNIEXPORT jint JNICALL
330 JVM_GetArrayLength(JNIEnv *env, jobject arr);
331
332 JNIEXPORT jobject JNICALL
333 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
334
335 JNIEXPORT jvalue JNICALL
336 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
337
338 JNIEXPORT void JNICALL
339 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
340
341 JNIEXPORT void JNICALL
342 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
343 unsigned char vCode);
344
345 JNIEXPORT jobject JNICALL
346 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
347
348 JNIEXPORT jobject JNICALL
349 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
350
351 /*
352 * java.lang.Class and java.lang.ClassLoader
353 */
354
355 #define JVM_CALLER_DEPTH -1
356
357 /*
358 * Returns the class in which the code invoking the native method
359 * belongs.
360 *
361 * Note that in JDK 1.1, native methods did not create a frame.
362 * In 1.2, they do. Therefore native methods like Class.forName
363 * can no longer look at the current frame for the caller class.
364 */
365 JNIEXPORT jclass JNICALL
366 JVM_GetCallerClass(JNIEnv *env, int n);
367
368 /*
369 * Find primitive classes
370 * utf: class name
371 */
372 JNIEXPORT jclass JNICALL
373 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
374
375 /*
376 * Find a class from a boot class loader. Returns NULL if class not found.
377 */
378 JNIEXPORT jclass JNICALL
379 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
380
381 /*
382 * Find a class from a given class loader. Throws ClassNotFoundException.
383 * name: name of class
384 * init: whether initialization is done
385 * loader: class loader to look up the class. This may not be the same as the caller's
386 * class loader.
387 * caller: initiating class. The initiating class may be null when a security
388 * manager is not installed.
389 */
390 JNIEXPORT jclass JNICALL
391 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
392 jobject loader, jclass caller);
393
394 /*
395 * Find a class from a given class.
396 */
397 JNIEXPORT jclass JNICALL
398 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
399 jclass from);
400
401 /* Find a loaded class cached by the VM */
402 JNIEXPORT jclass JNICALL
403 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
404
405 /* Define a class */
406 JNIEXPORT jclass JNICALL
407 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
408 jsize len, jobject pd);
409
410 /* Define a class with a source (added in JDK1.5) */
411 JNIEXPORT jclass JNICALL
412 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
413 const jbyte *buf, jsize len, jobject pd,
414 const char *source);
415
416 /*
417 * Reflection support functions
418 */
419
420 JNIEXPORT jstring JNICALL
421 JVM_GetClassName(JNIEnv *env, jclass cls);
422
423 JNIEXPORT jobjectArray JNICALL
424 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
425
426 JNIEXPORT jboolean JNICALL
427 JVM_IsInterface(JNIEnv *env, jclass cls);
428
429 JNIEXPORT jobjectArray JNICALL
430 JVM_GetClassSigners(JNIEnv *env, jclass cls);
431
432 JNIEXPORT void JNICALL
433 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
434
435 JNIEXPORT jobject JNICALL
436 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
437
438 JNIEXPORT jboolean JNICALL
439 JVM_IsArrayClass(JNIEnv *env, jclass cls);
440
441 JNIEXPORT jboolean JNICALL
442 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
443
444 JNIEXPORT jint JNICALL
445 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
446
447 JNIEXPORT jobjectArray JNICALL
448 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
449
450 JNIEXPORT jclass JNICALL
451 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
452
453 JNIEXPORT jstring JNICALL
454 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);
455
456 /* Generics support (JDK 1.5) */
457 JNIEXPORT jstring JNICALL
458 JVM_GetClassSignature(JNIEnv *env, jclass cls);
459
460 /* Annotations support (JDK 1.5) */
461 JNIEXPORT jbyteArray JNICALL
462 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
463
464 /* Annotations support (JDK 1.6) */
465
466 /* Type use annotations support (JDK 1.8) */
467
468 JNIEXPORT jbyteArray JNICALL
469 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
470
471 // field is a handle to a java.lang.reflect.Field object
472 JNIEXPORT jbyteArray JNICALL
473 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
474
475 // method is a handle to a java.lang.reflect.Method object
476 JNIEXPORT jbyteArray JNICALL
477 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
478
479 /*
480 * New (JDK 1.4) reflection implementation
481 */
482
483 JNIEXPORT jobjectArray JNICALL
484 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
485
486 JNIEXPORT jobjectArray JNICALL
487 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
488
489 JNIEXPORT jobjectArray JNICALL
490 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
491
492 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
493 This returns the access flags for the class as specified in the
494 class file rather than searching the InnerClasses attribute (if
495 present) to find the source-level access flags. Only the values of
496 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
497 valid. */
498 JNIEXPORT jint JNICALL
499 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
500
501 /*
502 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
503 */
504
505 JNIEXPORT jobject JNICALL
506 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
507
508 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
509 (JNIEnv *env, jobject obj, jobject unused);
510
511 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
512 (JNIEnv *env, jobject obj, jobject unused, jint index);
513
514 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
515 (JNIEnv *env, jobject obj, jobject unused, jint index);
516
517 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
518 (JNIEnv *env, jobject obj, jobject unused, jint index);
519
520 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
521 (JNIEnv *env, jobject obj, jobject unused, jint index);
522
523 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
524 (JNIEnv *env, jobject obj, jobject unused, jint index);
525
526 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
527 (JNIEnv *env, jobject obj, jobject unused, jint index);
528
529 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
530 (JNIEnv *env, jobject obj, jobject unused, jint index);
531
532 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
533 (JNIEnv *env, jobject obj, jobject unused, jint index);
534
535 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
536 (JNIEnv *env, jobject obj, jobject unused, jint index);
537
538 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
539 (JNIEnv *env, jobject obj, jobject unused, jint index);
540
541 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
542 (JNIEnv *env, jobject obj, jobject unused, jint index);
543
544 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
545 (JNIEnv *env, jobject obj, jobject unused, jint index);
546
547 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
548 (JNIEnv *env, jobject obj, jobject unused, jint index);
549
550 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
551 (JNIEnv *env, jobject obj, jobject unused, jint index);
552
553 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
554 (JNIEnv *env, jobject obj, jobject unused, jint index);
555
556 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
557 (JNIEnv *env, jobject obj, jobject unused, jint index);
558
559 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
560 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
561
562 /*
563 * java.security.*
564 */
565
566 JNIEXPORT jobject JNICALL
567 JVM_DoPrivileged(JNIEnv *env, jclass cls,
568 jobject action, jobject context, jboolean wrapException);
569
570 JNIEXPORT jobject JNICALL
571 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
572
573 JNIEXPORT jobject JNICALL
574 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
575
576 /*
577 * Signal support, used to implement the shutdown sequence. Every VM must
578 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
579 * (^C) and the latter for external termination (kill, system shutdown, etc.).
580 * Other platform-dependent signal values may also be supported.
581 */
582
583 JNIEXPORT void * JNICALL
584 JVM_RegisterSignal(jint sig, void *handler);
585
586 JNIEXPORT jboolean JNICALL
587 JVM_RaiseSignal(jint sig);
588
589 JNIEXPORT jint JNICALL
590 JVM_FindSignal(const char *name);
591
592 /*
593 * Retrieve the assertion directives for the specified class.
594 */
595 JNIEXPORT jboolean JNICALL
596 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
597
598 /*
599 * Retrieve the assertion directives from the VM.
600 */
601 JNIEXPORT jobject JNICALL
602 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
603
604 /*
605 * java.util.concurrent.atomic.AtomicLong
606 */
607 JNIEXPORT jboolean JNICALL
608 JVM_SupportsCX8(void);
609
610 /*************************************************************************
611 PART 2: Support for the Verifier and Class File Format Checker
612 ************************************************************************/
613 /*
614 * Return the class name in UTF format. The result is valid
615 * until JVM_ReleaseUTf is called.
616 *
617 * The caller must treat the string as a constant and not modify it
618 * in any way.
619 */
620 JNIEXPORT const char * JNICALL
621 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
622
623 /*
624 * Returns the constant pool types in the buffer provided by "types."
625 */
626 JNIEXPORT void JNICALL
627 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
628
629 /*
630 * Returns the number of Constant Pool entries.
631 */
632 JNIEXPORT jint JNICALL
633 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
634
635 /*
636 * Returns the number of *declared* fields or methods.
637 */
638 JNIEXPORT jint JNICALL
639 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
640
641 JNIEXPORT jint JNICALL
642 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
643
644 /*
645 * Returns the CP indexes of exceptions raised by a given method.
646 * Places the result in the given buffer.
647 *
648 * The method is identified by method_index.
649 */
650 JNIEXPORT void JNICALL
651 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
652 unsigned short *exceptions);
653 /*
654 * Returns the number of exceptions raised by a given method.
655 * The method is identified by method_index.
656 */
657 JNIEXPORT jint JNICALL
658 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
659
660 /*
661 * Returns the byte code sequence of a given method.
662 * Places the result in the given buffer.
663 *
664 * The method is identified by method_index.
665 */
666 JNIEXPORT void JNICALL
667 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
668 unsigned char *code);
669
670 /*
671 * Returns the length of the byte code sequence of a given method.
672 * The method is identified by method_index.
673 */
674 JNIEXPORT jint JNICALL
675 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
676
677 /*
678 * A structure used to a capture exception table entry in a Java method.
679 */
680 typedef struct {
681 jint start_pc;
682 jint end_pc;
683 jint handler_pc;
684 jint catchType;
685 } JVM_ExceptionTableEntryType;
686
687 /*
688 * Returns the exception table entry at entry_index 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_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
695 jint entry_index,
696 JVM_ExceptionTableEntryType *entry);
697
698 /*
699 * Returns the length of the exception table of a given method.
700 * The method is identified by method_index.
701 */
702 JNIEXPORT jint JNICALL
703 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
704
705 /*
706 * Returns the modifiers of a given field.
707 * The field is identified by field_index.
708 */
709 JNIEXPORT jint JNICALL
710 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
711
712 /*
713 * Returns the modifiers of a given method.
714 * The method is identified by method_index.
715 */
716 JNIEXPORT jint JNICALL
717 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
718
719 /*
720 * Returns the number of local variables of a given method.
721 * The method is identified by method_index.
722 */
723 JNIEXPORT jint JNICALL
724 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
725
726 /*
727 * Returns the number of arguments (including this pointer) of a given method.
728 * The method is identified by method_index.
729 */
730 JNIEXPORT jint JNICALL
731 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
732
733 /*
734 * Returns the maximum amount of stack (in words) used by a given method.
735 * The method is identified by method_index.
736 */
737 JNIEXPORT jint JNICALL
738 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
739
740 /*
741 * Is a given method a constructor.
742 * The method is identified by method_index.
743 */
744 JNIEXPORT jboolean JNICALL
745 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
746
747 /*
748 * Is the given method generated by the VM.
749 * The method is identified by method_index.
750 */
751 JNIEXPORT jboolean JNICALL
752 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
753
754 /*
755 * Returns the name of a given method in UTF format.
756 * The result remains valid until JVM_ReleaseUTF is called.
757 *
758 * The caller must treat the string as a constant and not modify it
759 * in any way.
760 */
761 JNIEXPORT const char * JNICALL
762 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
763
764 /*
765 * Returns the signature of a given method in UTF format.
766 * The result remains valid until JVM_ReleaseUTF is called.
767 *
768 * The caller must treat the string as a constant and not modify it
769 * in any way.
770 */
771 JNIEXPORT const char * JNICALL
772 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
773
774 /*
775 * Returns the name of the field refered to at a given constant pool
776 * index.
777 *
778 * The result is in UTF format and remains valid until JVM_ReleaseUTF
779 * is called.
780 *
781 * The caller must treat the string as a constant and not modify it
782 * in any way.
783 */
784 JNIEXPORT const char * JNICALL
785 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
786
787 /*
788 * Returns the name of the method refered to at a given constant pool
789 * index.
790 *
791 * The result is in UTF format and remains valid until JVM_ReleaseUTF
792 * is called.
793 *
794 * The caller must treat the string as a constant and not modify it
795 * in any way.
796 */
797 JNIEXPORT const char * JNICALL
798 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
799
800 /*
801 * Returns the signature of the method refered to at a given constant pool
802 * index.
803 *
804 * The result is in UTF format and remains valid until JVM_ReleaseUTF
805 * is called.
806 *
807 * The caller must treat the string as a constant and not modify it
808 * in any way.
809 */
810 JNIEXPORT const char * JNICALL
811 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
812
813 /*
814 * Returns the signature of the field refered to at a given constant pool
815 * index.
816 *
817 * The result is in UTF format and remains valid until JVM_ReleaseUTF
818 * is called.
819 *
820 * The caller must treat the string as a constant and not modify it
821 * in any way.
822 */
823 JNIEXPORT const char * JNICALL
824 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
825
826 /*
827 * Returns the class name refered to at a given constant pool index.
828 *
829 * The result is in UTF format and remains valid until JVM_ReleaseUTF
830 * is called.
831 *
832 * The caller must treat the string as a constant and not modify it
833 * in any way.
834 */
835 JNIEXPORT const char * JNICALL
836 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
837
838 /*
839 * Returns the class name refered to at a given constant pool index.
840 *
841 * The constant pool entry must refer to a CONSTANT_Fieldref.
842 *
843 * The result is in UTF format and remains valid until JVM_ReleaseUTF
844 * is called.
845 *
846 * The caller must treat the string as a constant and not modify it
847 * in any way.
848 */
849 JNIEXPORT const char * JNICALL
850 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
851
852 /*
853 * Returns the class name refered to at a given constant pool index.
854 *
855 * The constant pool entry must refer to CONSTANT_Methodref or
856 * CONSTANT_InterfaceMethodref.
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_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
866
867 /*
868 * Returns the modifiers of a field in calledClass. The field is
869 * referred to in class cb at constant pool entry index.
870 *
871 * The caller must treat the string as a constant and not modify it
872 * in any way.
873 *
874 * Returns -1 if the field does not exist in calledClass.
875 */
876 JNIEXPORT jint JNICALL
877 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
878
879 /*
880 * Returns the modifiers of a method in calledClass. The method is
881 * referred to in class cb at constant pool entry index.
882 *
883 * Returns -1 if the method does not exist in calledClass.
884 */
885 JNIEXPORT jint JNICALL
886 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
887
888 /*
889 * Releases the UTF string obtained from the VM.
890 */
891 JNIEXPORT void JNICALL
892 JVM_ReleaseUTF(const char *utf);
893
894 /*
895 * Compare if two classes are in the same package.
896 */
897 JNIEXPORT jboolean JNICALL
898 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
899
900 /* Constants in class files */
901
902 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
903 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
904 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
905 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
906 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
907 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
908 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
909 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
910 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
911 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
912 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
913 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
914 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
915 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
916 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
917 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
918 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
919 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
920
921 #define JVM_ACC_PUBLIC_BIT 0
922 #define JVM_ACC_PRIVATE_BIT 1
923 #define JVM_ACC_PROTECTED_BIT 2
924 #define JVM_ACC_STATIC_BIT 3
925 #define JVM_ACC_FINAL_BIT 4
926 #define JVM_ACC_SYNCHRONIZED_BIT 5
927 #define JVM_ACC_SUPER_BIT 5
928 #define JVM_ACC_VOLATILE_BIT 6
929 #define JVM_ACC_BRIDGE_BIT 6
930 #define JVM_ACC_TRANSIENT_BIT 7
931 #define JVM_ACC_VARARGS_BIT 7
932 #define JVM_ACC_NATIVE_BIT 8
933 #define JVM_ACC_INTERFACE_BIT 9
934 #define JVM_ACC_ABSTRACT_BIT 10
935 #define JVM_ACC_STRICT_BIT 11
936 #define JVM_ACC_SYNTHETIC_BIT 12
937 #define JVM_ACC_ANNOTATION_BIT 13
938 #define JVM_ACC_ENUM_BIT 14
939
940 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
941 enum {
942 JVM_CONSTANT_Utf8 = 1,
943 JVM_CONSTANT_Unicode, /* unused */
944 JVM_CONSTANT_Integer,
945 JVM_CONSTANT_Float,
946 JVM_CONSTANT_Long,
947 JVM_CONSTANT_Double,
948 JVM_CONSTANT_Class,
949 JVM_CONSTANT_String,
950 JVM_CONSTANT_Fieldref,
951 JVM_CONSTANT_Methodref,
952 JVM_CONSTANT_InterfaceMethodref,
953 JVM_CONSTANT_NameAndType,
954 JVM_CONSTANT_MethodHandle = 15, // JSR 292
955 JVM_CONSTANT_MethodType = 16, // JSR 292
956 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
957 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
958 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
959 };
960
961 /* JVM_CONSTANT_MethodHandle subtypes */
962 enum {
963 JVM_REF_getField = 1,
964 JVM_REF_getStatic = 2,
965 JVM_REF_putField = 3,
966 JVM_REF_putStatic = 4,
967 JVM_REF_invokeVirtual = 5,
968 JVM_REF_invokeStatic = 6,
969 JVM_REF_invokeSpecial = 7,
970 JVM_REF_newInvokeSpecial = 8,
971 JVM_REF_invokeInterface = 9
972 };
973
974 /* Used in the newarray instruction. */
975
976 #define JVM_T_BOOLEAN 4
977 #define JVM_T_CHAR 5
978 #define JVM_T_FLOAT 6
979 #define JVM_T_DOUBLE 7
980 #define JVM_T_BYTE 8
981 #define JVM_T_SHORT 9
982 #define JVM_T_INT 10
983 #define JVM_T_LONG 11
984
985 /* JVM method signatures */
986
987 #define JVM_SIGNATURE_ARRAY '['
988 #define JVM_SIGNATURE_BYTE 'B'
989 #define JVM_SIGNATURE_CHAR 'C'
990 #define JVM_SIGNATURE_CLASS 'L'
991 #define JVM_SIGNATURE_ENDCLASS ';'
992 #define JVM_SIGNATURE_ENUM 'E'
993 #define JVM_SIGNATURE_FLOAT 'F'
994 #define JVM_SIGNATURE_DOUBLE 'D'
995 #define JVM_SIGNATURE_FUNC '('
996 #define JVM_SIGNATURE_ENDFUNC ')'
997 #define JVM_SIGNATURE_INT 'I'
998 #define JVM_SIGNATURE_LONG 'J'
999 #define JVM_SIGNATURE_SHORT 'S'
1000 #define JVM_SIGNATURE_VOID 'V'
1001 #define JVM_SIGNATURE_BOOLEAN 'Z'
1002
1003 /*
1004 * A function defined by the byte-code verifier and called by the VM.
1005 * This is not a function implemented in the VM.
1006 *
1007 * Returns JNI_FALSE if verification fails. A detailed error message
1008 * will be places in msg_buf, whose length is specified by buf_len.
1009 */
1010 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1011 jclass cb,
1012 char * msg_buf,
1013 jint buf_len);
1014
1015
1016 /*
1017 * Support for a VM-independent class format checker.
1018 */
1019 typedef struct {
1020 unsigned long code; /* byte code */
1021 unsigned long excs; /* exceptions */
1022 unsigned long etab; /* catch table */
1023 unsigned long lnum; /* line number */
1024 unsigned long lvar; /* local vars */
1025 } method_size_info;
1026
1027 typedef struct {
1028 unsigned int constants; /* constant pool */
1029 unsigned int fields;
1030 unsigned int methods;
1031 unsigned int interfaces;
1032 unsigned int fields2; /* number of static 2-word fields */
1033 unsigned int innerclasses; /* # of records in InnerClasses attr */
1034
1035 method_size_info clinit; /* memory used in clinit */
1036 method_size_info main; /* used everywhere else */
1037 } class_size_info;
1038
1039 /*
1040 * Functions defined in libjava.so to perform string conversions.
1041 *
1042 */
1043
1044 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1045
1046 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1047
1048 /* This is the function defined in libjava.so that performs class
1049 * format checks. This functions fills in size information about
1050 * the class file and returns:
1051 *
1052 * 0: good
1053 * -1: out of memory
1054 * -2: bad format
1055 * -3: unsupported version
1056 * -4: bad class name
1057 */
1058
1059 typedef jint (*check_format_fn_t)(char *class_name,
1060 unsigned char *data,
1061 unsigned int data_size,
1062 class_size_info *class_size,
1063 char *message_buffer,
1064 jint buffer_length,
1065 jboolean measure_only,
1066 jboolean check_relaxed);
1067
1068 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1069 JVM_ACC_FINAL | \
1070 JVM_ACC_SUPER | \
1071 JVM_ACC_INTERFACE | \
1072 JVM_ACC_ABSTRACT | \
1073 JVM_ACC_ANNOTATION | \
1074 JVM_ACC_ENUM | \
1075 JVM_ACC_SYNTHETIC)
1076
1077 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1078 JVM_ACC_PRIVATE | \
1079 JVM_ACC_PROTECTED | \
1080 JVM_ACC_STATIC | \
1081 JVM_ACC_FINAL | \
1082 JVM_ACC_VOLATILE | \
1083 JVM_ACC_TRANSIENT | \
1084 JVM_ACC_ENUM | \
1085 JVM_ACC_SYNTHETIC)
1086
1087 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1088 JVM_ACC_PRIVATE | \
1089 JVM_ACC_PROTECTED | \
1090 JVM_ACC_STATIC | \
1091 JVM_ACC_FINAL | \
1092 JVM_ACC_SYNCHRONIZED | \
1093 JVM_ACC_BRIDGE | \
1094 JVM_ACC_VARARGS | \
1095 JVM_ACC_NATIVE | \
1096 JVM_ACC_ABSTRACT | \
1097 JVM_ACC_STRICT | \
1098 JVM_ACC_SYNTHETIC)
1099
1100 /*
1101 * This is the function defined in libjava.so to perform path
1102 * canonicalization. VM call this function before opening jar files
1103 * to load system classes.
1104 *
1105 */
1106
1107 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1108
1109 /*************************************************************************
1110 PART 3: I/O and Network Support
1111 ************************************************************************/
1112
1113 /*
1114 * Convert a pathname into native format. This function does syntactic
1115 * cleanup, such as removing redundant separator characters. It modifies
1116 * the given pathname string in place.
1117 */
1118 JNIEXPORT char * JNICALL
1119 JVM_NativePath(char *);
1120
1121 /*
1122 * The standard printing functions supported by the Java VM. (Should they
1123 * be renamed to JVM_* in the future?
1124 */
1125
1126 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1127 * respectively, with the following differences:
1128 * - The string written to str is always zero-terminated, also in case of
1129 * truncation (count is too small to hold the result string), unless count
1130 * is 0. In case of truncation count-1 characters are written and '\0'
1131 * appendend.
1132 * - If count is too small to hold the whole string, -1 is returned across
1133 * all platforms. */
1134 JNIEXPORT int
1135 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1136
1137 JNIEXPORT int
1138 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1139
1140 JNIEXPORT int
1141 jio_fprintf(FILE *, const char *fmt, ...);
1142
1143 JNIEXPORT int
1144 jio_vfprintf(FILE *, const char *fmt, va_list args);
1145
1146
1147 JNIEXPORT void * JNICALL
1148 JVM_RawMonitorCreate(void);
1149
1150 JNIEXPORT void JNICALL
1151 JVM_RawMonitorDestroy(void *mon);
1152
1153 JNIEXPORT jint JNICALL
1154 JVM_RawMonitorEnter(void *mon);
1155
1156 JNIEXPORT void JNICALL
1157 JVM_RawMonitorExit(void *mon);
1158
1159 /*
1160 * java.lang.reflect.Method
1161 */
1162 JNIEXPORT jobject JNICALL
1163 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1164
1165 /*
1166 * java.lang.reflect.Constructor
1167 */
1168 JNIEXPORT jobject JNICALL
1169 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1170
1171 /*
1172 * java.lang.management support
1173 */
1174 JNIEXPORT void* JNICALL
1175 JVM_GetManagement(jint version);
1176
1177 /*
1178 * com.sun.tools.attach.VirtualMachine support
1179 *
1180 * Initialize the agent properties with the properties maintained in the VM.
1181 */
1182 JNIEXPORT jobject JNICALL
1183 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1184
1185 JNIEXPORT jstring JNICALL
1186 JVM_GetTemporaryDirectory(JNIEnv *env);
1187
1188 /* Generics reflection support.
1189 *
1190 * Returns information about the given class's EnclosingMethod
1191 * attribute, if present, or null if the class had no enclosing
1192 * method.
1193 *
1194 * If non-null, the returned array contains three elements. Element 0
1195 * is the java.lang.Class of which the enclosing method is a member,
1196 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1197 * method's name and descriptor, respectively.
1198 */
1199 JNIEXPORT jobjectArray JNICALL
1200 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1201
1202 /* =========================================================================
1203 * The following defines a private JVM interface that the JDK can query
1204 * for the JVM version and capabilities. sun.misc.Version defines
1205 * the methods for getting the VM version and its capabilities.
1206 *
1207 * When a new bit is added, the following should be updated to provide
1208 * access to the new capability:
1209 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1210 * SDK: Version class
1211 *
1212 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1213 * JVM to query for the JDK version and capabilities.
1214 *
1215 * When a new bit is added, the following should be updated to provide
1216 * access to the new capability:
1217 * HS: JDK_Version class
1218 * SDK: JDK_GetVersionInfo0
1219 *
1220 * ==========================================================================
1221 */
1222 typedef struct {
1223 unsigned int jvm_version; /* Encoded $VNUM as defined by JEP-223 */
1224 unsigned int patch_version : 8; /* JEP-223 patch version */
1225 unsigned int reserved3 : 8;
1226 unsigned int reserved1 : 16;
1227 unsigned int reserved2;
1228
1229 /* The following bits represents JVM supports that JDK has dependency on.
1230 * JDK can use these bits to determine which JVM version
1231 * and support it has to maintain runtime compatibility.
1232 *
1233 * When a new bit is added in a minor or update release, make sure
1234 * the new bit is also added in the main/baseline.
1235 */
1236 unsigned int is_attachable : 1;
1237 unsigned int : 31;
1238 unsigned int : 32;
1239 unsigned int : 32;
1240 } jvm_version_info;
1241
1242 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1243 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1244 #define JVM_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1245 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1246
1247 JNIEXPORT void JNICALL
1248 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1249
1250 typedef struct {
1251 unsigned int jdk_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 new JDK supports that VM has dependency on.
1258 * VM implementation can use these bits to determine which JDK 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 thread_park_blocker : 1;
1265 unsigned int post_vm_init_hook_enabled : 1;
1266 unsigned int pending_list_uses_discovered_field : 1;
1267 unsigned int : 29;
1268 unsigned int : 32;
1269 unsigned int : 32;
1270 } jdk_version_info;
1271
1272 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1273 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1274 #define JDK_VERSION_SECURITY(version) ((version & 0x0000FF00) >> 8)
1275 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1276
1277 /*
1278 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1279 * that is dynamically looked up by JVM.
1280 */
1281 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1282
1283 /*
1284 * This structure is used by the launcher to get the default thread
1285 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1286 * version of 1.1. As it is not supported otherwise, it has been removed
1287 * from jni.h
1288 */
1289 typedef struct JDK1_1InitArgs {
1290 jint version;
1291
1292 char **properties;
1293 jint checkSource;
1294 jint nativeStackSize;
1295 jint javaStackSize;
1296 jint minHeapSize;
1297 jint maxHeapSize;
1298 jint verifyMode;
1299 char *classpath;
1300
1301 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1302 void (JNICALL *exit)(jint code);
1303 void (JNICALL *abort)(void);
1304
1305 jint enableClassGC;
1306 jint enableVerboseGC;
1307 jint disableAsyncGC;
1308 jint verbose;
1309 jboolean debugging;
1310 jint debugPort;
1311 } JDK1_1InitArgs;
1312
1313 #ifdef __cplusplus
1314 } /* extern "C" */
1315 #endif /* __cplusplus */
1316
1317 #endif /* !_JAVASOFT_JVM_H_ */
1318
1319 #endif // SHARE_VM_PRIMS_JVM_H