1 /*
2 * Copyright (c) 1997, 2011, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #ifndef _JAVASOFT_JVM_H_
27 #define _JAVASOFT_JVM_H_
28
29 #include <sys/stat.h>
30
31 #include "jni.h"
32 #include "jvm_md.h"
33
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37
38 /*
39 * This file contains additional functions exported from the VM.
40 * These functions are complementary to the standard JNI support.
41 * There are three parts to this file:
42 *
43 * First, this file contains the VM-related functions needed by native
44 * libraries in the standard Java API. For example, the java.lang.Object
45 * class needs VM-level functions that wait for and notify monitors.
46 *
47 * Second, this file contains the functions and constant definitions
48 * needed by the byte code verifier and class file format checker.
49 * These functions allow the verifier and format checker to be written
50 * in a VM-independent way.
51 *
52 * Third, this file contains various I/O and nerwork operations needed
53 * by the standard Java I/O and network APIs.
54 */
55
56 /*
57 * Bump the version number when either of the following happens:
58 *
59 * 1. There is a change in JVM_* functions.
60 *
61 * 2. There is a change in the contract between VM and Java classes.
62 * For example, if the VM relies on a new private field in Thread
63 * class.
64 */
65
66 #define JVM_INTERFACE_VERSION 4
67
68 JNIEXPORT jint JNICALL
69 JVM_GetInterfaceVersion(void);
70
71 /*************************************************************************
72 PART 1: Functions for Native Libraries
73 ************************************************************************/
74 /*
75 * java.lang.Object
76 */
77 JNIEXPORT jint JNICALL
78 JVM_IHashCode(JNIEnv *env, jobject obj);
79
80 JNIEXPORT void JNICALL
81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
82
83 JNIEXPORT void JNICALL
84 JVM_MonitorNotify(JNIEnv *env, jobject obj);
85
86 JNIEXPORT void JNICALL
87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
88
89 JNIEXPORT jobject JNICALL
90 JVM_Clone(JNIEnv *env, jobject obj);
91
92 /*
93 * java.lang.String
94 */
95 JNIEXPORT jstring JNICALL
96 JVM_InternString(JNIEnv *env, jstring str);
97
98 /*
99 * java.lang.System
100 */
101 JNIEXPORT jlong JNICALL
102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
103
104 JNIEXPORT jlong JNICALL
105 JVM_NanoTime(JNIEnv *env, jclass ignored);
106
107 JNIEXPORT void JNICALL
108 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
109 jobject dst, jint dst_pos, jint length);
110
111 JNIEXPORT jobject JNICALL
112 JVM_InitProperties(JNIEnv *env, jobject p);
113
114 /*
115 * java.io.File
116 */
117 JNIEXPORT void JNICALL
118 JVM_OnExit(void (*func)(void));
119
120 /*
121 * java.lang.Runtime
122 */
123 JNIEXPORT void JNICALL
124 JVM_Exit(jint code);
125
126 JNIEXPORT void JNICALL
127 JVM_Halt(jint code);
128
129 JNIEXPORT void JNICALL
130 JVM_GC(void);
131
132 /* Returns the number of real-time milliseconds that have elapsed since the
133 * least-recently-inspected heap object was last inspected by the garbage
134 * collector.
135 *
136 * For simple stop-the-world collectors this value is just the time
137 * since the most recent collection. For generational collectors it is the
138 * time since the oldest generation was most recently collected. Other
139 * collectors are free to return a pessimistic estimate of the elapsed time, or
140 * simply the time since the last full collection was performed.
141 *
142 * Note that in the presence of reference objects, a given object that is no
143 * longer strongly reachable may have to be inspected multiple times before it
144 * can be reclaimed.
145 */
146 JNIEXPORT jlong JNICALL
147 JVM_MaxObjectInspectionAge(void);
148
149 JNIEXPORT void JNICALL
150 JVM_TraceInstructions(jboolean on);
151
152 JNIEXPORT void JNICALL
153 JVM_TraceMethodCalls(jboolean on);
154
155 JNIEXPORT jlong JNICALL
156 JVM_TotalMemory(void);
157
158 JNIEXPORT jlong JNICALL
159 JVM_FreeMemory(void);
160
161 JNIEXPORT jlong JNICALL
162 JVM_MaxMemory(void);
163
164 JNIEXPORT jint JNICALL
165 JVM_ActiveProcessorCount(void);
166
167 JNIEXPORT void * JNICALL
168 JVM_LoadLibrary(const char *name);
169
170 JNIEXPORT void JNICALL
171 JVM_UnloadLibrary(void * handle);
172
173 JNIEXPORT void * JNICALL
174 JVM_FindLibraryEntry(void *handle, const char *name);
175
176 JNIEXPORT jboolean JNICALL
177 JVM_IsSupportedJNIVersion(jint version);
178
179 /*
180 * java.lang.Float and java.lang.Double
181 */
182 JNIEXPORT jboolean JNICALL
183 JVM_IsNaN(jdouble d);
184
185 /*
186 * java.lang.Throwable
187 */
188 JNIEXPORT void JNICALL
189 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
190
191 JNIEXPORT void JNICALL
192 JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable);
193
194 JNIEXPORT jint JNICALL
195 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
196
197 JNIEXPORT jobject JNICALL
198 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
199
200 /*
201 * java.lang.Compiler
202 */
203 JNIEXPORT void JNICALL
204 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
205
206 JNIEXPORT jboolean JNICALL
207 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
208
209 JNIEXPORT jboolean JNICALL
210 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
211
212 JNIEXPORT jboolean JNICALL
213 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
214
215 JNIEXPORT jobject JNICALL
216 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
217
218 JNIEXPORT void JNICALL
219 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
220
221 JNIEXPORT void JNICALL
222 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
223
224 /*
225 * java.lang.Thread
226 */
227 JNIEXPORT void JNICALL
228 JVM_StartThread(JNIEnv *env, jobject thread);
229
230 JNIEXPORT void JNICALL
231 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
232
233 JNIEXPORT jboolean JNICALL
234 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
235
236 JNIEXPORT void JNICALL
237 JVM_SuspendThread(JNIEnv *env, jobject thread);
238
239 JNIEXPORT void JNICALL
240 JVM_ResumeThread(JNIEnv *env, jobject thread);
241
242 JNIEXPORT void JNICALL
243 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
244
245 JNIEXPORT void JNICALL
246 JVM_Yield(JNIEnv *env, jclass threadClass);
247
248 JNIEXPORT void JNICALL
249 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
250
251 JNIEXPORT jobject JNICALL
252 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
253
254 JNIEXPORT jint JNICALL
255 JVM_CountStackFrames(JNIEnv *env, jobject thread);
256
257 JNIEXPORT void JNICALL
258 JVM_Interrupt(JNIEnv *env, jobject thread);
259
260 JNIEXPORT jboolean JNICALL
261 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
262
263 JNIEXPORT jboolean JNICALL
264 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
265
266 JNIEXPORT void JNICALL
267 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
268
269 JNIEXPORT jobjectArray JNICALL
270 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
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.io.ObjectInputStream
305 */
306 JNIEXPORT jobject JNICALL
307 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
308 jclass initClass);
309
310 JNIEXPORT jobject JNICALL
311 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
312 jint length);
313
314 JNIEXPORT jobject JNICALL
315 JVM_LatestUserDefinedLoader(JNIEnv *env);
316
317 /*
318 * This function has been deprecated and should not be considered
319 * part of the specified JVM interface.
320 */
321 JNIEXPORT jclass JNICALL
322 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
323 jstring currClassName);
324
325 /*
326 * java.lang.reflect.Array
327 */
328 JNIEXPORT jint JNICALL
329 JVM_GetArrayLength(JNIEnv *env, jobject arr);
330
331 JNIEXPORT jobject JNICALL
332 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
333
334 JNIEXPORT jvalue JNICALL
335 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
336
337 JNIEXPORT void JNICALL
338 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
339
340 JNIEXPORT void JNICALL
341 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
342 unsigned char vCode);
343
344 JNIEXPORT jobject JNICALL
345 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
346
347 JNIEXPORT jobject JNICALL
348 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
349
350 /*
351 * java.lang.Class and java.lang.ClassLoader
352 */
353 /*
354 * Returns the class in which the code invoking the native method
355 * belongs.
356 *
357 * Note that in JDK 1.1, native methods did not create a frame.
358 * In 1.2, they do. Therefore native methods like Class.forName
359 * can no longer look at the current frame for the caller class.
360 */
361 JNIEXPORT jclass JNICALL
362 JVM_GetCallerClass(JNIEnv *env, int n);
363
364 /*
365 * Find primitive classes
366 * utf: class name
367 */
368 JNIEXPORT jclass JNICALL
369 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
370
371 /*
372 * Link the class
373 */
374 JNIEXPORT void JNICALL
375 JVM_ResolveClass(JNIEnv *env, jclass cls);
376
377 /*
378 * Find a class from a boot class loader. Returns NULL if class not found.
379 */
380 JNIEXPORT jclass JNICALL
381 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
382
383 /*
384 * Find a class from a given class loader. Throw ClassNotFoundException
385 * or NoClassDefFoundError depending on the value of the last
386 * argument.
387 */
388 JNIEXPORT jclass JNICALL
389 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
390 jobject loader, jboolean throwError);
391
392 /*
393 * Find a class from a given class.
394 */
395 JNIEXPORT jclass JNICALL
396 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
397 jclass from);
398
399 /* Find a loaded class cached by the VM */
400 JNIEXPORT jclass JNICALL
401 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
402
403 /* Define a class */
404 JNIEXPORT jclass JNICALL
405 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
406 jsize len, jobject pd);
407
408 /* Define a class with a source (added in JDK1.5) */
409 JNIEXPORT jclass JNICALL
410 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
411 const jbyte *buf, jsize len, jobject pd,
412 const char *source);
413
414 /*
415 * Reflection support functions
416 */
417
418 JNIEXPORT jstring JNICALL
419 JVM_GetClassName(JNIEnv *env, jclass cls);
420
421 JNIEXPORT jobjectArray JNICALL
422 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
423
424 JNIEXPORT jobject JNICALL
425 JVM_GetClassLoader(JNIEnv *env, jclass cls);
426
427 JNIEXPORT jboolean JNICALL
428 JVM_IsInterface(JNIEnv *env, jclass cls);
429
430 JNIEXPORT jobjectArray JNICALL
431 JVM_GetClassSigners(JNIEnv *env, jclass cls);
432
433 JNIEXPORT void JNICALL
434 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
435
436 JNIEXPORT jobject JNICALL
437 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
438
439 JNIEXPORT void JNICALL
440 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
441
442 JNIEXPORT jboolean JNICALL
443 JVM_IsArrayClass(JNIEnv *env, jclass cls);
444
445 JNIEXPORT jboolean JNICALL
446 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
447
448 JNIEXPORT jclass JNICALL
449 JVM_GetComponentType(JNIEnv *env, jclass cls);
450
451 JNIEXPORT jint JNICALL
452 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
453
454 JNIEXPORT jobjectArray JNICALL
455 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
456
457 JNIEXPORT jclass JNICALL
458 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
459
460 /* Generics support (JDK 1.5) */
461 JNIEXPORT jstring JNICALL
462 JVM_GetClassSignature(JNIEnv *env, jclass cls);
463
464 /* Annotations support (JDK 1.5) */
465 JNIEXPORT jbyteArray JNICALL
466 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
467
468 /*
469 * New (JDK 1.4) reflection implementation
470 */
471
472 JNIEXPORT jobjectArray JNICALL
473 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
474
475 JNIEXPORT jobjectArray JNICALL
476 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
477
478 JNIEXPORT jobjectArray JNICALL
479 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
480
481 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
482 This returns the access flags for the class as specified in the
483 class file rather than searching the InnerClasses attribute (if
484 present) to find the source-level access flags. Only the values of
485 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
486 valid. */
487 JNIEXPORT jint JNICALL
488 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
489
490 /* The following two reflection routines are still needed due to startup time issues */
491 /*
492 * java.lang.reflect.Method
493 */
494 JNIEXPORT jobject JNICALL
495 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
496
497 /*
498 * java.lang.reflect.Constructor
499 */
500 JNIEXPORT jobject JNICALL
501 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
502
503 /*
504 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
505 */
506
507 JNIEXPORT jobject JNICALL
508 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
509
510 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
511 (JNIEnv *env, jobject unused, jobject jcpool);
512
513 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
514 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
515
516 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
517 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
518
519 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
520 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
521
522 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
523 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
524
525 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
526 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
527
528 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
529 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
530
531 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
532 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
533
534 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
535 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
536
537 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
538 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
539
540 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
541 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
542
543 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
544 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
545
546 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
547 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
548
549 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
550 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
551
552 /*
553 * java.security.*
554 */
555
556 JNIEXPORT jobject JNICALL
557 JVM_DoPrivileged(JNIEnv *env, jclass cls,
558 jobject action, jobject context, jboolean wrapException);
559
560 JNIEXPORT jobject JNICALL
561 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
562
563 JNIEXPORT jobject JNICALL
564 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
565
566 /*
567 * Signal support, used to implement the shutdown sequence. Every VM must
568 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
569 * (^C) and the latter for external termination (kill, system shutdown, etc.).
570 * Other platform-dependent signal values may also be supported.
571 */
572
573 JNIEXPORT void * JNICALL
574 JVM_RegisterSignal(jint sig, void *handler);
575
576 JNIEXPORT jboolean JNICALL
577 JVM_RaiseSignal(jint sig);
578
579 JNIEXPORT jint JNICALL
580 JVM_FindSignal(const char *name);
581
582 /*
583 * Retrieve the assertion directives for the specified class.
584 */
585 JNIEXPORT jboolean JNICALL
586 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
587
588 /*
589 * Retrieve the assertion directives from the VM.
590 */
591 JNIEXPORT jobject JNICALL
592 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
593
594 /*
595 * java.util.concurrent.AtomicLong
596 */
597 JNIEXPORT jboolean JNICALL
598 JVM_SupportsCX8(void);
599
600 /*
601 * com.sun.dtrace.jsdt support
602 */
603
604 #define JVM_TRACING_DTRACE_VERSION 1
605
606 /*
607 * Structure to pass one probe description to JVM
608 */
609 typedef struct {
610 jmethodID method;
611 jstring function;
612 jstring name;
613 void* reserved[4]; // for future use
614 } JVM_DTraceProbe;
615
616 /**
617 * Encapsulates the stability ratings for a DTrace provider field
618 */
619 typedef struct {
620 jint nameStability;
621 jint dataStability;
622 jint dependencyClass;
623 } JVM_DTraceInterfaceAttributes;
624
625 /*
626 * Structure to pass one provider description to JVM
627 */
628 typedef struct {
629 jstring name;
630 JVM_DTraceProbe* probes;
631 jint probe_count;
632 JVM_DTraceInterfaceAttributes providerAttributes;
633 JVM_DTraceInterfaceAttributes moduleAttributes;
634 JVM_DTraceInterfaceAttributes functionAttributes;
635 JVM_DTraceInterfaceAttributes nameAttributes;
636 JVM_DTraceInterfaceAttributes argsAttributes;
637 void* reserved[4]; // for future use
638 } JVM_DTraceProvider;
639
640 /*
641 * Get the version number the JVM was built with
642 */
643 JNIEXPORT jint JNICALL
644 JVM_DTraceGetVersion(JNIEnv* env);
645
646 /*
647 * Register new probe with given signature, return global handle
648 *
649 * The version passed in is the version that the library code was
650 * built with.
651 */
652 JNIEXPORT jlong JNICALL
653 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
654 jint providers_count, JVM_DTraceProvider* providers);
655
656 /*
657 * Check JSDT probe
658 */
659 JNIEXPORT jboolean JNICALL
660 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
661
662 /*
663 * Destroy custom DOF
664 */
665 JNIEXPORT void JNICALL
666 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
667
668 /*
669 * Check to see if DTrace is supported by OS
670 */
671 JNIEXPORT jboolean JNICALL
672 JVM_DTraceIsSupported(JNIEnv* env);
673
674 /*************************************************************************
675 PART 2: Support for the Verifier and Class File Format Checker
676 ************************************************************************/
677 /*
678 * Return the class name in UTF format. The result is valid
679 * until JVM_ReleaseUTf is called.
680 *
681 * The caller must treat the string as a constant and not modify it
682 * in any way.
683 */
684 JNIEXPORT const char * JNICALL
685 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
686
687 /*
688 * Returns the constant pool types in the buffer provided by "types."
689 */
690 JNIEXPORT void JNICALL
691 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
692
693 /*
694 * Returns the number of Constant Pool entries.
695 */
696 JNIEXPORT jint JNICALL
697 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
698
699 /*
700 * Returns the number of *declared* fields or methods.
701 */
702 JNIEXPORT jint JNICALL
703 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
704
705 JNIEXPORT jint JNICALL
706 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
707
708 /*
709 * Returns the CP indexes of exceptions raised by a given method.
710 * Places the result in the given buffer.
711 *
712 * The method is identified by method_index.
713 */
714 JNIEXPORT void JNICALL
715 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
716 unsigned short *exceptions);
717 /*
718 * Returns the number of exceptions raised by a given method.
719 * The method is identified by method_index.
720 */
721 JNIEXPORT jint JNICALL
722 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
723
724 /*
725 * Returns the byte code sequence of a given method.
726 * Places the result in the given buffer.
727 *
728 * The method is identified by method_index.
729 */
730 JNIEXPORT void JNICALL
731 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
732 unsigned char *code);
733
734 /*
735 * Returns the length of the byte code sequence of a given method.
736 * The method is identified by method_index.
737 */
738 JNIEXPORT jint JNICALL
739 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
740
741 /*
742 * A structure used to a capture exception table entry in a Java method.
743 */
744 typedef struct {
745 jint start_pc;
746 jint end_pc;
747 jint handler_pc;
748 jint catchType;
749 } JVM_ExceptionTableEntryType;
750
751 /*
752 * Returns the exception table entry at entry_index of a given method.
753 * Places the result in the given buffer.
754 *
755 * The method is identified by method_index.
756 */
757 JNIEXPORT void JNICALL
758 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
759 jint entry_index,
760 JVM_ExceptionTableEntryType *entry);
761
762 /*
763 * Returns the length of the exception table of a given method.
764 * The method is identified by method_index.
765 */
766 JNIEXPORT jint JNICALL
767 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
768
769 /*
770 * Returns the modifiers of a given field.
771 * The field is identified by field_index.
772 */
773 JNIEXPORT jint JNICALL
774 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
775
776 /*
777 * Returns the modifiers of a given method.
778 * The method is identified by method_index.
779 */
780 JNIEXPORT jint JNICALL
781 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
782
783 /*
784 * Returns the number of local variables of a given method.
785 * The method is identified by method_index.
786 */
787 JNIEXPORT jint JNICALL
788 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
789
790 /*
791 * Returns the number of arguments (including this pointer) of a given method.
792 * The method is identified by method_index.
793 */
794 JNIEXPORT jint JNICALL
795 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
796
797 /*
798 * Returns the maximum amount of stack (in words) used by a given method.
799 * The method is identified by method_index.
800 */
801 JNIEXPORT jint JNICALL
802 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
803
804 /*
805 * Is a given method a constructor.
806 * The method is identified by method_index.
807 */
808 JNIEXPORT jboolean JNICALL
809 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
810
811 /*
812 * Returns the name of a given method in UTF format.
813 * The result remains valid until JVM_ReleaseUTF is called.
814 *
815 * The caller must treat the string as a constant and not modify it
816 * in any way.
817 */
818 JNIEXPORT const char * JNICALL
819 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
820
821 /*
822 * Returns the signature of a given method in UTF format.
823 * The result remains valid until JVM_ReleaseUTF is called.
824 *
825 * The caller must treat the string as a constant and not modify it
826 * in any way.
827 */
828 JNIEXPORT const char * JNICALL
829 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
830
831 /*
832 * Returns the name of the field refered to at a given constant pool
833 * index.
834 *
835 * The result is in UTF format and remains valid until JVM_ReleaseUTF
836 * is called.
837 *
838 * The caller must treat the string as a constant and not modify it
839 * in any way.
840 */
841 JNIEXPORT const char * JNICALL
842 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
843
844 /*
845 * Returns the name of the method refered to at a given constant pool
846 * index.
847 *
848 * The result is in UTF format and remains valid until JVM_ReleaseUTF
849 * is called.
850 *
851 * The caller must treat the string as a constant and not modify it
852 * in any way.
853 */
854 JNIEXPORT const char * JNICALL
855 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
856
857 /*
858 * Returns the signature of the method refered to at a given constant pool
859 * index.
860 *
861 * The result is in UTF format and remains valid until JVM_ReleaseUTF
862 * is called.
863 *
864 * The caller must treat the string as a constant and not modify it
865 * in any way.
866 */
867 JNIEXPORT const char * JNICALL
868 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
869
870 /*
871 * Returns the signature of the field refered to at a given constant pool
872 * index.
873 *
874 * The result is in UTF format and remains valid until JVM_ReleaseUTF
875 * is called.
876 *
877 * The caller must treat the string as a constant and not modify it
878 * in any way.
879 */
880 JNIEXPORT const char * JNICALL
881 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
882
883 /*
884 * Returns the class name refered to at a given constant pool index.
885 *
886 * The result is in UTF format and remains valid until JVM_ReleaseUTF
887 * is called.
888 *
889 * The caller must treat the string as a constant and not modify it
890 * in any way.
891 */
892 JNIEXPORT const char * JNICALL
893 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
894
895 /*
896 * Returns the class name refered to at a given constant pool index.
897 *
898 * The constant pool entry must refer to a CONSTANT_Fieldref.
899 *
900 * The result is in UTF format and remains valid until JVM_ReleaseUTF
901 * is called.
902 *
903 * The caller must treat the string as a constant and not modify it
904 * in any way.
905 */
906 JNIEXPORT const char * JNICALL
907 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
908
909 /*
910 * Returns the class name refered to at a given constant pool index.
911 *
912 * The constant pool entry must refer to CONSTANT_Methodref or
913 * CONSTANT_InterfaceMethodref.
914 *
915 * The result is in UTF format and remains valid until JVM_ReleaseUTF
916 * is called.
917 *
918 * The caller must treat the string as a constant and not modify it
919 * in any way.
920 */
921 JNIEXPORT const char * JNICALL
922 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
923
924 /*
925 * Returns the modifiers of a field in calledClass. The field is
926 * referred to in class cb at constant pool entry index.
927 *
928 * The caller must treat the string as a constant and not modify it
929 * in any way.
930 *
931 * Returns -1 if the field does not exist in calledClass.
932 */
933 JNIEXPORT jint JNICALL
934 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
935
936 /*
937 * Returns the modifiers of a method in calledClass. The method is
938 * referred to in class cb at constant pool entry index.
939 *
940 * Returns -1 if the method does not exist in calledClass.
941 */
942 JNIEXPORT jint JNICALL
943 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
944
945 /*
946 * Releases the UTF string obtained from the VM.
947 */
948 JNIEXPORT void JNICALL
949 JVM_ReleaseUTF(const char *utf);
950
951 /*
952 * Compare if two classes are in the same package.
953 */
954 JNIEXPORT jboolean JNICALL
955 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
956
957 /* Get classfile constants */
958 #include "classfile_constants.h"
959
960 /*
961 * A function defined by the byte-code verifier and called by the VM.
962 * This is not a function implemented in the VM.
963 *
964 * Returns JNI_FALSE if verification fails. A detailed error message
965 * will be places in msg_buf, whose length is specified by buf_len.
966 */
967 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
968 jclass cb,
969 char * msg_buf,
970 jint buf_len);
971
972
973 /*
974 * Support for a VM-independent class format checker.
975 */
976 typedef struct {
977 unsigned long code; /* byte code */
978 unsigned long excs; /* exceptions */
979 unsigned long etab; /* catch table */
980 unsigned long lnum; /* line number */
981 unsigned long lvar; /* local vars */
982 } method_size_info;
983
984 typedef struct {
985 unsigned int constants; /* constant pool */
986 unsigned int fields;
987 unsigned int methods;
988 unsigned int interfaces;
989 unsigned int fields2; /* number of static 2-word fields */
990 unsigned int innerclasses; /* # of records in InnerClasses attr */
991
992 method_size_info clinit; /* memory used in clinit */
993 method_size_info main; /* used everywhere else */
994 } class_size_info;
995
996 /*
997 * Functions defined in libjava.so to perform string conversions.
998 *
999 */
1000
1001 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1002
1003 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1004
1005 /* This is the function defined in libjava.so that performs class
1006 * format checks. This functions fills in size information about
1007 * the class file and returns:
1008 *
1009 * 0: good
1010 * -1: out of memory
1011 * -2: bad format
1012 * -3: unsupported version
1013 * -4: bad class name
1014 */
1015
1016 typedef jint (*check_format_fn_t)(char *class_name,
1017 unsigned char *data,
1018 unsigned int data_size,
1019 class_size_info *class_size,
1020 char *message_buffer,
1021 jint buffer_length,
1022 jboolean measure_only,
1023 jboolean check_relaxed);
1024
1025 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1026 JVM_ACC_FINAL | \
1027 JVM_ACC_SUPER | \
1028 JVM_ACC_INTERFACE | \
1029 JVM_ACC_ABSTRACT | \
1030 JVM_ACC_ANNOTATION | \
1031 JVM_ACC_ENUM | \
1032 JVM_ACC_SYNTHETIC)
1033
1034 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1035 JVM_ACC_PRIVATE | \
1036 JVM_ACC_PROTECTED | \
1037 JVM_ACC_STATIC | \
1038 JVM_ACC_FINAL | \
1039 JVM_ACC_VOLATILE | \
1040 JVM_ACC_TRANSIENT | \
1041 JVM_ACC_ENUM | \
1042 JVM_ACC_SYNTHETIC)
1043
1044 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1045 JVM_ACC_PRIVATE | \
1046 JVM_ACC_PROTECTED | \
1047 JVM_ACC_STATIC | \
1048 JVM_ACC_FINAL | \
1049 JVM_ACC_SYNCHRONIZED | \
1050 JVM_ACC_BRIDGE | \
1051 JVM_ACC_VARARGS | \
1052 JVM_ACC_NATIVE | \
1053 JVM_ACC_ABSTRACT | \
1054 JVM_ACC_STRICT | \
1055 JVM_ACC_SYNTHETIC)
1056
1057 /*
1058 * This is the function defined in libjava.so to perform path
1059 * canonicalization. VM call this function before opening jar files
1060 * to load system classes.
1061 *
1062 */
1063
1064 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1065
1066 /*************************************************************************
1067 PART 3: I/O and Network Support
1068 ************************************************************************/
1069
1070 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1071 * when there is any kind of error. The caller can then use the
1072 * platform specific support (e.g., errno) to get the detailed
1073 * error info. The JVM_GetLastErrorString procedure may also be used
1074 * to obtain a descriptive error string.
1075 */
1076 #define JVM_IO_ERR (-1)
1077
1078 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1079 * operation has been disrupted by Thread.interrupt. There are a
1080 * number of technical difficulties related to interruptible IO that
1081 * need to be solved. For example, most existing programs do not handle
1082 * InterruptedIOExceptions specially, they simply treat those as any
1083 * IOExceptions, which typically indicate fatal errors.
1084 *
1085 * There are also two modes of operation for interruptible IO. In the
1086 * resumption mode, an interrupted IO operation is guaranteed not to
1087 * have any side-effects, and can be restarted. In the termination mode,
1088 * an interrupted IO operation corrupts the underlying IO stream, so
1089 * that the only reasonable operation on an interrupted stream is to
1090 * close that stream. The resumption mode seems to be impossible to
1091 * implement on Win32 and Solaris. Implementing the termination mode is
1092 * easier, but it's not clear that's the right semantics.
1093 *
1094 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1095 * using a compile-time flag on Solaris. Third-party JVM ports do not
1096 * need to implement interruptible IO.
1097 */
1098 #define JVM_IO_INTR (-2)
1099
1100 /* Write a string into the given buffer, in the platform's local encoding,
1101 * that describes the most recent system-level error to occur in this thread.
1102 * Return the length of the string or zero if no error occurred.
1103 */
1104 JNIEXPORT jint JNICALL
1105 JVM_GetLastErrorString(char *buf, int len);
1106
1107 /*
1108 * Convert a pathname into native format. This function does syntactic
1109 * cleanup, such as removing redundant separator characters. It modifies
1110 * the given pathname string in place.
1111 */
1112 JNIEXPORT char * JNICALL
1113 JVM_NativePath(char *);
1114
1115 /*
1116 * JVM I/O error codes
1117 */
1118 #define JVM_EEXIST -100
1119
1120 /*
1121 * Open a file descriptor. This function returns a negative error code
1122 * on error, and a non-negative integer that is the file descriptor on
1123 * success.
1124 */
1125 JNIEXPORT jint JNICALL
1126 JVM_Open(const char *fname, jint flags, jint mode);
1127
1128 /*
1129 * Close a file descriptor. This function returns -1 on error, and 0
1130 * on success.
1131 *
1132 * fd the file descriptor to close.
1133 */
1134 JNIEXPORT jint JNICALL
1135 JVM_Close(jint fd);
1136
1137 /*
1138 * Read data from a file decriptor into a char array.
1139 *
1140 * fd the file descriptor to read from.
1141 * buf the buffer where to put the read data.
1142 * nbytes the number of bytes to read.
1143 *
1144 * This function returns -1 on error, and 0 on success.
1145 */
1146 JNIEXPORT jint JNICALL
1147 JVM_Read(jint fd, char *buf, jint nbytes);
1148
1149 /*
1150 * Write data from a char array to a file decriptor.
1151 *
1152 * fd the file descriptor to read from.
1153 * buf the buffer from which to fetch the data.
1154 * nbytes the number of bytes to write.
1155 *
1156 * This function returns -1 on error, and 0 on success.
1157 */
1158 JNIEXPORT jint JNICALL
1159 JVM_Write(jint fd, char *buf, jint nbytes);
1160
1161 /*
1162 * Returns the number of bytes available for reading from a given file
1163 * descriptor
1164 */
1165 JNIEXPORT jint JNICALL
1166 JVM_Available(jint fd, jlong *pbytes);
1167
1168 /*
1169 * Move the file descriptor pointer from whence by offset.
1170 *
1171 * fd the file descriptor to move.
1172 * offset the number of bytes to move it by.
1173 * whence the start from where to move it.
1174 *
1175 * This function returns the resulting pointer location.
1176 */
1177 JNIEXPORT jlong JNICALL
1178 JVM_Lseek(jint fd, jlong offset, jint whence);
1179
1180 /*
1181 * Set the length of the file associated with the given descriptor to the given
1182 * length. If the new length is longer than the current length then the file
1183 * is extended; the contents of the extended portion are not defined. The
1184 * value of the file pointer is undefined after this procedure returns.
1185 */
1186 JNIEXPORT jint JNICALL
1187 JVM_SetLength(jint fd, jlong length);
1188
1189 /*
1190 * Synchronize the file descriptor's in memory state with that of the
1191 * physical device. Return of -1 is an error, 0 is OK.
1192 */
1193 JNIEXPORT jint JNICALL
1194 JVM_Sync(jint fd);
1195
1196 /*
1197 * Networking library support
1198 */
1199
1200 JNIEXPORT jint JNICALL
1201 JVM_InitializeSocketLibrary(void);
1202
1203 struct sockaddr;
1204
1205 JNIEXPORT jint JNICALL
1206 JVM_Socket(jint domain, jint type, jint protocol);
1207
1208 JNIEXPORT jint JNICALL
1209 JVM_SocketClose(jint fd);
1210
1211 JNIEXPORT jint JNICALL
1212 JVM_SocketShutdown(jint fd, jint howto);
1213
1214 JNIEXPORT jint JNICALL
1215 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1216
1217 JNIEXPORT jint JNICALL
1218 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1219
1220 JNIEXPORT jint JNICALL
1221 JVM_Timeout(int fd, long timeout);
1222
1223 JNIEXPORT jint JNICALL
1224 JVM_Listen(jint fd, jint count);
1225
1226 JNIEXPORT jint JNICALL
1227 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1228
1229 JNIEXPORT jint JNICALL
1230 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1231
1232 JNIEXPORT jint JNICALL
1233 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1234
1235 JNIEXPORT jint JNICALL
1236 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1237 int flags, struct sockaddr *from, int *fromlen);
1238
1239 JNIEXPORT jint JNICALL
1240 JVM_SendTo(jint fd, char *buf, int len,
1241 int flags, struct sockaddr *to, int tolen);
1242
1243 JNIEXPORT jint JNICALL
1244 JVM_SocketAvailable(jint fd, jint *result);
1245
1246
1247 JNIEXPORT jint JNICALL
1248 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1249
1250 JNIEXPORT jint JNICALL
1251 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1252
1253 JNIEXPORT jint JNICALL
1254 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1255
1256 JNIEXPORT int JNICALL
1257 JVM_GetHostName(char* name, int namelen);
1258
1259 /*
1260 * The standard printing functions supported by the Java VM. (Should they
1261 * be renamed to JVM_* in the future?
1262 */
1263
1264 /*
1265 * BE CAREFUL! The following functions do not implement the
1266 * full feature set of standard C printf formats.
1267 */
1268 int
1269 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1270
1271 int
1272 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1273
1274 int
1275 jio_fprintf(FILE *, const char *fmt, ...);
1276
1277 int
1278 jio_vfprintf(FILE *, const char *fmt, va_list args);
1279
1280
1281 JNIEXPORT void * JNICALL
1282 JVM_RawMonitorCreate(void);
1283
1284 JNIEXPORT void JNICALL
1285 JVM_RawMonitorDestroy(void *mon);
1286
1287 JNIEXPORT jint JNICALL
1288 JVM_RawMonitorEnter(void *mon);
1289
1290 JNIEXPORT void JNICALL
1291 JVM_RawMonitorExit(void *mon);
1292
1293 /*
1294 * java.lang.management support
1295 */
1296 JNIEXPORT void* JNICALL
1297 JVM_GetManagement(jint version);
1298
1299 /*
1300 * com.sun.tools.attach.VirtualMachine support
1301 *
1302 * Initialize the agent properties with the properties maintained in the VM.
1303 */
1304 JNIEXPORT jobject JNICALL
1305 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1306
1307 /* Generics reflection support.
1308 *
1309 * Returns information about the given class's EnclosingMethod
1310 * attribute, if present, or null if the class had no enclosing
1311 * method.
1312 *
1313 * If non-null, the returned array contains three elements. Element 0
1314 * is the java.lang.Class of which the enclosing method is a member,
1315 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1316 * method's name and descriptor, respectively.
1317 */
1318 JNIEXPORT jobjectArray JNICALL
1319 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1320
1321 /*
1322 * Java thread state support
1323 */
1324 enum {
1325 JAVA_THREAD_STATE_NEW = 0,
1326 JAVA_THREAD_STATE_RUNNABLE = 1,
1327 JAVA_THREAD_STATE_BLOCKED = 2,
1328 JAVA_THREAD_STATE_WAITING = 3,
1329 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1330 JAVA_THREAD_STATE_TERMINATED = 5,
1331 JAVA_THREAD_STATE_COUNT = 6
1332 };
1333
1334 /*
1335 * Returns an array of the threadStatus values representing the
1336 * given Java thread state. Returns NULL if the VM version is
1337 * incompatible with the JDK or doesn't support the given
1338 * Java thread state.
1339 */
1340 JNIEXPORT jintArray JNICALL
1341 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1342
1343 /*
1344 * Returns an array of the substate names representing the
1345 * given Java thread state. Returns NULL if the VM version is
1346 * incompatible with the JDK or the VM doesn't support
1347 * the given Java thread state.
1348 * values must be the jintArray returned from JVM_GetThreadStateValues
1349 * and javaThreadState.
1350 */
1351 JNIEXPORT jobjectArray JNICALL
1352 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1353
1354 /* =========================================================================
1355 * The following defines a private JVM interface that the JDK can query
1356 * for the JVM version and capabilities. sun.misc.Version defines
1357 * the methods for getting the VM version and its capabilities.
1358 *
1359 * When a new bit is added, the following should be updated to provide
1360 * access to the new capability:
1361 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1362 * SDK: Version class
1363 *
1364 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1365 * JVM to query for the JDK version and capabilities.
1366 *
1367 * When a new bit is added, the following should be updated to provide
1368 * access to the new capability:
1369 * HS: JDK_Version class
1370 * SDK: JDK_GetVersionInfo0
1371 *
1372 * ==========================================================================
1373 */
1374 typedef struct {
1375 /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */
1376 unsigned int jvm_version; /* Consists of major, minor, micro (n.n.n) */
1377 /* and build number (xx) */
1378 unsigned int update_version : 8; /* Update release version (uu) */
1379 unsigned int special_update_version : 8; /* Special update release version (c)*/
1380 unsigned int reserved1 : 16;
1381 unsigned int reserved2;
1382
1383 /* The following bits represents JVM supports that JDK has dependency on.
1384 * JDK can use these bits to determine which JVM version
1385 * and support it has to maintain runtime compatibility.
1386 *
1387 * When a new bit is added in a minor or update release, make sure
1388 * the new bit is also added in the main/baseline.
1389 */
1390 unsigned int is_attach_supported : 1;
1391 unsigned int is_kernel_jvm : 1;
1392 unsigned int : 30;
1393 unsigned int : 32;
1394 unsigned int : 32;
1395 } jvm_version_info;
1396
1397 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1398 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1399 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1400
1401 /* Build number is available only for RE builds.
1402 * It will be zero for internal builds.
1403 */
1404 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1405
1406 JNIEXPORT void JNICALL
1407 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1408
1409 typedef struct {
1410 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1411 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1412 /* and build number (xx) */
1413 unsigned int update_version : 8; /* Update release version (uu) */
1414 unsigned int special_update_version : 8; /* Special update release version (c)*/
1415 unsigned int reserved1 : 16;
1416 unsigned int reserved2;
1417
1418 /* The following bits represents new JDK supports that VM has dependency on.
1419 * VM implementation can use these bits to determine which JDK version
1420 * and support it has to maintain runtime compatibility.
1421 *
1422 * When a new bit is added in a minor or update release, make sure
1423 * the new bit is also added in the main/baseline.
1424 */
1425 unsigned int thread_park_blocker : 1;
1426 unsigned int post_vm_init_hook_enabled : 1;
1427 unsigned int : 30;
1428 unsigned int : 32;
1429 unsigned int : 32;
1430 } jdk_version_info;
1431
1432 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1433 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1434 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1435
1436 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1437 * It will be zero for internal builds.
1438 */
1439 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1440
1441 /*
1442 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1443 * that is dynamically looked up by JVM.
1444 */
1445 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1446
1447 /*
1448 * This structure is used by the launcher to get the default thread
1449 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1450 * version of 1.1. As it is not supported otherwise, it has been removed
1451 * from jni.h
1452 */
1453 typedef struct JDK1_1InitArgs {
1454 jint version;
1455
1456 char **properties;
1457 jint checkSource;
1458 jint nativeStackSize;
1459 jint javaStackSize;
1460 jint minHeapSize;
1461 jint maxHeapSize;
1462 jint verifyMode;
1463 char *classpath;
1464
1465 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1466 void (JNICALL *exit)(jint code);
1467 void (JNICALL *abort)(void);
1468
1469 jint enableClassGC;
1470 jint enableVerboseGC;
1471 jint disableAsyncGC;
1472 jint verbose;
1473 jboolean debugging;
1474 jint debugPort;
1475 } JDK1_1InitArgs;
1476
1477
1478 #ifdef __cplusplus
1479 } /* extern "C" */
1480
1481 #endif /* __cplusplus */
1482
1483 #endif /* !_JAVASOFT_JVM_H_ */