1 /*
2 * Copyright (c) 1997, 2013, 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 jint JNICALL
192 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
193
194 JNIEXPORT jobject JNICALL
195 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
196
197 /*
198 * java.lang.Compiler
199 */
200 JNIEXPORT void JNICALL
201 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
202
203 JNIEXPORT jboolean JNICALL
204 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
205
206 JNIEXPORT jboolean JNICALL
207 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
208
209 JNIEXPORT jboolean JNICALL
210 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
211
212 JNIEXPORT jobject JNICALL
213 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
214
215 JNIEXPORT void JNICALL
216 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
217
218 JNIEXPORT void JNICALL
219 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
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.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 /* Type use annotations support (JDK 1.8) */
469
470 JNIEXPORT jbyteArray JNICALL
471 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
472
473
474 /*
475 * New (JDK 1.4) reflection implementation
476 */
477
478 JNIEXPORT jobjectArray JNICALL
479 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
480
481 JNIEXPORT jobjectArray JNICALL
482 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
483
484 JNIEXPORT jobjectArray JNICALL
485 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
486
487 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
488 This returns the access flags for the class as specified in the
489 class file rather than searching the InnerClasses attribute (if
490 present) to find the source-level access flags. Only the values of
491 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
492 valid. */
493 JNIEXPORT jint JNICALL
494 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
495
496 /* The following two reflection routines are still needed due to startup time issues */
497 /*
498 * java.lang.reflect.Method
499 */
500 JNIEXPORT jobject JNICALL
501 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
502
503 /*
504 * java.lang.reflect.Constructor
505 */
506 JNIEXPORT jobject JNICALL
507 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
508
509 /*
510 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
511 */
512
513 JNIEXPORT jobject JNICALL
514 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
515
516 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
517 (JNIEnv *env, jobject unused, jobject jcpool);
518
519 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
520 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
521
522 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
523 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
524
525 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
526 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
527
528 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
529 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
530
531 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
532 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
533
534 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
535 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
536
537 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
538 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
539
540 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
541 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
542
543 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
544 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
545
546 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
547 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
548
549 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
550 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
551
552 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
553 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
554
555 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
556 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
557
558 /*
559 * Parameter reflection
560 */
561
562 JNIEXPORT jobjectArray JNICALL
563 JVM_GetMethodParameters(JNIEnv *env, jobject method);
564
565 /*
566 * java.security.*
567 */
568
569 JNIEXPORT jobject JNICALL
570 JVM_DoPrivileged(JNIEnv *env, jclass cls,
571 jobject action, jobject context, jboolean wrapException);
572
573 JNIEXPORT jobject JNICALL
574 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
575
576 JNIEXPORT jobject JNICALL
577 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
578
579 /*
580 * Signal support, used to implement the shutdown sequence. Every VM must
581 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
582 * (^C) and the latter for external termination (kill, system shutdown, etc.).
583 * Other platform-dependent signal values may also be supported.
584 */
585
586 JNIEXPORT void * JNICALL
587 JVM_RegisterSignal(jint sig, void *handler);
588
589 JNIEXPORT jboolean JNICALL
590 JVM_RaiseSignal(jint sig);
591
592 JNIEXPORT jint JNICALL
593 JVM_FindSignal(const char *name);
594
595 /*
596 * Retrieve the assertion directives for the specified class.
597 */
598 JNIEXPORT jboolean JNICALL
599 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
600
601 /*
602 * Retrieve the assertion directives from the VM.
603 */
604 JNIEXPORT jobject JNICALL
605 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
606
607 /*
608 * java.util.concurrent.atomic.AtomicLong
609 */
610 JNIEXPORT jboolean JNICALL
611 JVM_SupportsCX8(void);
612
613 /*
614 * com.sun.dtrace.jsdt support
615 */
616
617 #define JVM_TRACING_DTRACE_VERSION 1
618
619 /*
620 * Structure to pass one probe description to JVM
621 */
622 typedef struct {
623 jmethodID method;
624 jstring function;
625 jstring name;
626 void* reserved[4]; // for future use
627 } JVM_DTraceProbe;
628
629 /**
630 * Encapsulates the stability ratings for a DTrace provider field
631 */
632 typedef struct {
633 jint nameStability;
634 jint dataStability;
635 jint dependencyClass;
636 } JVM_DTraceInterfaceAttributes;
637
638 /*
639 * Structure to pass one provider description to JVM
640 */
641 typedef struct {
642 jstring name;
643 JVM_DTraceProbe* probes;
644 jint probe_count;
645 JVM_DTraceInterfaceAttributes providerAttributes;
646 JVM_DTraceInterfaceAttributes moduleAttributes;
647 JVM_DTraceInterfaceAttributes functionAttributes;
648 JVM_DTraceInterfaceAttributes nameAttributes;
649 JVM_DTraceInterfaceAttributes argsAttributes;
650 void* reserved[4]; // for future use
651 } JVM_DTraceProvider;
652
653 /*
654 * Get the version number the JVM was built with
655 */
656 JNIEXPORT jint JNICALL
657 JVM_DTraceGetVersion(JNIEnv* env);
658
659 /*
660 * Register new probe with given signature, return global handle
661 *
662 * The version passed in is the version that the library code was
663 * built with.
664 */
665 JNIEXPORT jlong JNICALL
666 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
667 jint providers_count, JVM_DTraceProvider* providers);
668
669 /*
670 * Check JSDT probe
671 */
672 JNIEXPORT jboolean JNICALL
673 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
674
675 /*
676 * Destroy custom DOF
677 */
678 JNIEXPORT void JNICALL
679 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
680
681 /*
682 * Check to see if DTrace is supported by OS
683 */
684 JNIEXPORT jboolean JNICALL
685 JVM_DTraceIsSupported(JNIEnv* env);
686
687 /*************************************************************************
688 PART 2: Support for the Verifier and Class File Format Checker
689 ************************************************************************/
690 /*
691 * Return the class name in UTF format. The result is valid
692 * until JVM_ReleaseUTf is called.
693 *
694 * The caller must treat the string as a constant and not modify it
695 * in any way.
696 */
697 JNIEXPORT const char * JNICALL
698 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
699
700 /*
701 * Returns the constant pool types in the buffer provided by "types."
702 */
703 JNIEXPORT void JNICALL
704 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
705
706 /*
707 * Returns the number of Constant Pool entries.
708 */
709 JNIEXPORT jint JNICALL
710 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
711
712 /*
713 * Returns the number of *declared* fields or methods.
714 */
715 JNIEXPORT jint JNICALL
716 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
717
718 JNIEXPORT jint JNICALL
719 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
720
721 /*
722 * Returns the CP indexes of exceptions raised by a given method.
723 * Places the result in the given buffer.
724 *
725 * The method is identified by method_index.
726 */
727 JNIEXPORT void JNICALL
728 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
729 unsigned short *exceptions);
730 /*
731 * Returns the number of exceptions raised by a given method.
732 * The method is identified by method_index.
733 */
734 JNIEXPORT jint JNICALL
735 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
736
737 /*
738 * Returns the byte code sequence of a given method.
739 * Places the result in the given buffer.
740 *
741 * The method is identified by method_index.
742 */
743 JNIEXPORT void JNICALL
744 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
745 unsigned char *code);
746
747 /*
748 * Returns the length of the byte code sequence of a given method.
749 * The method is identified by method_index.
750 */
751 JNIEXPORT jint JNICALL
752 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
753
754 /*
755 * A structure used to a capture exception table entry in a Java method.
756 */
757 typedef struct {
758 jint start_pc;
759 jint end_pc;
760 jint handler_pc;
761 jint catchType;
762 } JVM_ExceptionTableEntryType;
763
764 /*
765 * Returns the exception table entry at entry_index of a given method.
766 * Places the result in the given buffer.
767 *
768 * The method is identified by method_index.
769 */
770 JNIEXPORT void JNICALL
771 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
772 jint entry_index,
773 JVM_ExceptionTableEntryType *entry);
774
775 /*
776 * Returns the length of the exception table of a given method.
777 * The method is identified by method_index.
778 */
779 JNIEXPORT jint JNICALL
780 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
781
782 /*
783 * Returns the modifiers of a given field.
784 * The field is identified by field_index.
785 */
786 JNIEXPORT jint JNICALL
787 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
788
789 /*
790 * Returns the modifiers of a given method.
791 * The method is identified by method_index.
792 */
793 JNIEXPORT jint JNICALL
794 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
795
796 /*
797 * Returns the number of local variables of a given method.
798 * The method is identified by method_index.
799 */
800 JNIEXPORT jint JNICALL
801 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
802
803 /*
804 * Returns the number of arguments (including this pointer) of a given method.
805 * The method is identified by method_index.
806 */
807 JNIEXPORT jint JNICALL
808 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
809
810 /*
811 * Returns the maximum amount of stack (in words) used by a given method.
812 * The method is identified by method_index.
813 */
814 JNIEXPORT jint JNICALL
815 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
816
817 /*
818 * Is a given method a constructor.
819 * The method is identified by method_index.
820 */
821 JNIEXPORT jboolean JNICALL
822 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
823
824 /*
825 * Returns the name of a given method in UTF format.
826 * The result remains valid until JVM_ReleaseUTF is called.
827 *
828 * The caller must treat the string as a constant and not modify it
829 * in any way.
830 */
831 JNIEXPORT const char * JNICALL
832 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
833
834 /*
835 * Returns the signature of a given method in UTF format.
836 * The result remains valid until JVM_ReleaseUTF 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_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
843
844 /*
845 * Returns the name of the field 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_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
856
857 /*
858 * Returns the name 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_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
869
870 /*
871 * Returns the signature of the method 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_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
882
883 /*
884 * Returns the signature of the field refered to at a given constant pool
885 * index.
886 *
887 * The result is in UTF format and remains valid until JVM_ReleaseUTF
888 * is called.
889 *
890 * The caller must treat the string as a constant and not modify it
891 * in any way.
892 */
893 JNIEXPORT const char * JNICALL
894 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
895
896 /*
897 * Returns the class name refered to at a given constant pool index.
898 *
899 * The result is in UTF format and remains valid until JVM_ReleaseUTF
900 * is called.
901 *
902 * The caller must treat the string as a constant and not modify it
903 * in any way.
904 */
905 JNIEXPORT const char * JNICALL
906 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
907
908 /*
909 * Returns the class name refered to at a given constant pool index.
910 *
911 * The constant pool entry must refer to a CONSTANT_Fieldref.
912 *
913 * The result is in UTF format and remains valid until JVM_ReleaseUTF
914 * is called.
915 *
916 * The caller must treat the string as a constant and not modify it
917 * in any way.
918 */
919 JNIEXPORT const char * JNICALL
920 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
921
922 /*
923 * Returns the class name refered to at a given constant pool index.
924 *
925 * The constant pool entry must refer to CONSTANT_Methodref or
926 * CONSTANT_InterfaceMethodref.
927 *
928 * The result is in UTF format and remains valid until JVM_ReleaseUTF
929 * is called.
930 *
931 * The caller must treat the string as a constant and not modify it
932 * in any way.
933 */
934 JNIEXPORT const char * JNICALL
935 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
936
937 /*
938 * Returns the modifiers of a field in calledClass. The field is
939 * referred to in class cb at constant pool entry index.
940 *
941 * The caller must treat the string as a constant and not modify it
942 * in any way.
943 *
944 * Returns -1 if the field does not exist in calledClass.
945 */
946 JNIEXPORT jint JNICALL
947 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
948
949 /*
950 * Returns the modifiers of a method in calledClass. The method is
951 * referred to in class cb at constant pool entry index.
952 *
953 * Returns -1 if the method does not exist in calledClass.
954 */
955 JNIEXPORT jint JNICALL
956 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
957
958 /*
959 * Releases the UTF string obtained from the VM.
960 */
961 JNIEXPORT void JNICALL
962 JVM_ReleaseUTF(const char *utf);
963
964 /*
965 * Compare if two classes are in the same package.
966 */
967 JNIEXPORT jboolean JNICALL
968 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
969
970 /* Get classfile constants */
971 #include "classfile_constants.h"
972
973 /*
974 * A function defined by the byte-code verifier and called by the VM.
975 * This is not a function implemented in the VM.
976 *
977 * Returns JNI_FALSE if verification fails. A detailed error message
978 * will be places in msg_buf, whose length is specified by buf_len.
979 */
980 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
981 jclass cb,
982 char * msg_buf,
983 jint buf_len);
984
985
986 /*
987 * Support for a VM-independent class format checker.
988 */
989 typedef struct {
990 unsigned long code; /* byte code */
991 unsigned long excs; /* exceptions */
992 unsigned long etab; /* catch table */
993 unsigned long lnum; /* line number */
994 unsigned long lvar; /* local vars */
995 } method_size_info;
996
997 typedef struct {
998 unsigned int constants; /* constant pool */
999 unsigned int fields;
1000 unsigned int methods;
1001 unsigned int interfaces;
1002 unsigned int fields2; /* number of static 2-word fields */
1003 unsigned int innerclasses; /* # of records in InnerClasses attr */
1004
1005 method_size_info clinit; /* memory used in clinit */
1006 method_size_info main; /* used everywhere else */
1007 } class_size_info;
1008
1009 /*
1010 * Functions defined in libjava.so to perform string conversions.
1011 *
1012 */
1013
1014 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1015
1016 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1017
1018 /* This is the function defined in libjava.so that performs class
1019 * format checks. This functions fills in size information about
1020 * the class file and returns:
1021 *
1022 * 0: good
1023 * -1: out of memory
1024 * -2: bad format
1025 * -3: unsupported version
1026 * -4: bad class name
1027 */
1028
1029 typedef jint (*check_format_fn_t)(char *class_name,
1030 unsigned char *data,
1031 unsigned int data_size,
1032 class_size_info *class_size,
1033 char *message_buffer,
1034 jint buffer_length,
1035 jboolean measure_only,
1036 jboolean check_relaxed);
1037
1038 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1039 JVM_ACC_FINAL | \
1040 JVM_ACC_SUPER | \
1041 JVM_ACC_INTERFACE | \
1042 JVM_ACC_ABSTRACT | \
1043 JVM_ACC_ANNOTATION | \
1044 JVM_ACC_ENUM | \
1045 JVM_ACC_SYNTHETIC)
1046
1047 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1048 JVM_ACC_PRIVATE | \
1049 JVM_ACC_PROTECTED | \
1050 JVM_ACC_STATIC | \
1051 JVM_ACC_FINAL | \
1052 JVM_ACC_VOLATILE | \
1053 JVM_ACC_TRANSIENT | \
1054 JVM_ACC_ENUM | \
1055 JVM_ACC_SYNTHETIC)
1056
1057 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1058 JVM_ACC_PRIVATE | \
1059 JVM_ACC_PROTECTED | \
1060 JVM_ACC_STATIC | \
1061 JVM_ACC_FINAL | \
1062 JVM_ACC_SYNCHRONIZED | \
1063 JVM_ACC_BRIDGE | \
1064 JVM_ACC_VARARGS | \
1065 JVM_ACC_NATIVE | \
1066 JVM_ACC_ABSTRACT | \
1067 JVM_ACC_STRICT | \
1068 JVM_ACC_SYNTHETIC)
1069
1070 /*
1071 * This is the function defined in libjava.so to perform path
1072 * canonicalization. VM call this function before opening jar files
1073 * to load system classes.
1074 *
1075 */
1076
1077 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1078
1079 /*************************************************************************
1080 PART 3: I/O and Network Support
1081 ************************************************************************/
1082
1083 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1084 * when there is any kind of error. The caller can then use the
1085 * platform specific support (e.g., errno) to get the detailed
1086 * error info. The JVM_GetLastErrorString procedure may also be used
1087 * to obtain a descriptive error string.
1088 */
1089 #define JVM_IO_ERR (-1)
1090
1091 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1092 * operation has been disrupted by Thread.interrupt. There are a
1093 * number of technical difficulties related to interruptible IO that
1094 * need to be solved. For example, most existing programs do not handle
1095 * InterruptedIOExceptions specially, they simply treat those as any
1096 * IOExceptions, which typically indicate fatal errors.
1097 *
1098 * There are also two modes of operation for interruptible IO. In the
1099 * resumption mode, an interrupted IO operation is guaranteed not to
1100 * have any side-effects, and can be restarted. In the termination mode,
1101 * an interrupted IO operation corrupts the underlying IO stream, so
1102 * that the only reasonable operation on an interrupted stream is to
1103 * close that stream. The resumption mode seems to be impossible to
1104 * implement on Win32 and Solaris. Implementing the termination mode is
1105 * easier, but it's not clear that's the right semantics.
1106 *
1107 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1108 * using a compile-time flag on Solaris. Third-party JVM ports do not
1109 * need to implement interruptible IO.
1110 */
1111 #define JVM_IO_INTR (-2)
1112
1113 /* Write a string into the given buffer, in the platform's local encoding,
1114 * that describes the most recent system-level error to occur in this thread.
1115 * Return the length of the string or zero if no error occurred.
1116 */
1117 JNIEXPORT jint JNICALL
1118 JVM_GetLastErrorString(char *buf, int len);
1119
1120 /*
1121 * Convert a pathname into native format. This function does syntactic
1122 * cleanup, such as removing redundant separator characters. It modifies
1123 * the given pathname string in place.
1124 */
1125 JNIEXPORT char * JNICALL
1126 JVM_NativePath(char *);
1127
1128 /*
1129 * JVM I/O error codes
1130 */
1131 #define JVM_EEXIST -100
1132
1133 /*
1134 * Open a file descriptor. This function returns a negative error code
1135 * on error, and a non-negative integer that is the file descriptor on
1136 * success.
1137 */
1138 JNIEXPORT jint JNICALL
1139 JVM_Open(const char *fname, jint flags, jint mode);
1140
1141 /*
1142 * Close a file descriptor. This function returns -1 on error, and 0
1143 * on success.
1144 *
1145 * fd the file descriptor to close.
1146 */
1147 JNIEXPORT jint JNICALL
1148 JVM_Close(jint fd);
1149
1150 /*
1151 * Read data from a file decriptor into a char array.
1152 *
1153 * fd the file descriptor to read from.
1154 * buf the buffer where to put the read data.
1155 * nbytes the number of bytes to read.
1156 *
1157 * This function returns -1 on error, and 0 on success.
1158 */
1159 JNIEXPORT jint JNICALL
1160 JVM_Read(jint fd, char *buf, jint nbytes);
1161
1162 /*
1163 * Write data from a char array to a file decriptor.
1164 *
1165 * fd the file descriptor to read from.
1166 * buf the buffer from which to fetch the data.
1167 * nbytes the number of bytes to write.
1168 *
1169 * This function returns -1 on error, and 0 on success.
1170 */
1171 JNIEXPORT jint JNICALL
1172 JVM_Write(jint fd, char *buf, jint nbytes);
1173
1174 /*
1175 * Returns the number of bytes available for reading from a given file
1176 * descriptor
1177 */
1178 JNIEXPORT jint JNICALL
1179 JVM_Available(jint fd, jlong *pbytes);
1180
1181 /*
1182 * Move the file descriptor pointer from whence by offset.
1183 *
1184 * fd the file descriptor to move.
1185 * offset the number of bytes to move it by.
1186 * whence the start from where to move it.
1187 *
1188 * This function returns the resulting pointer location.
1189 */
1190 JNIEXPORT jlong JNICALL
1191 JVM_Lseek(jint fd, jlong offset, jint whence);
1192
1193 /*
1194 * Set the length of the file associated with the given descriptor to the given
1195 * length. If the new length is longer than the current length then the file
1196 * is extended; the contents of the extended portion are not defined. The
1197 * value of the file pointer is undefined after this procedure returns.
1198 */
1199 JNIEXPORT jint JNICALL
1200 JVM_SetLength(jint fd, jlong length);
1201
1202 /*
1203 * Synchronize the file descriptor's in memory state with that of the
1204 * physical device. Return of -1 is an error, 0 is OK.
1205 */
1206 JNIEXPORT jint JNICALL
1207 JVM_Sync(jint fd);
1208
1209 /*
1210 * Networking library support
1211 */
1212
1213 JNIEXPORT jint JNICALL
1214 JVM_InitializeSocketLibrary(void);
1215
1216 struct sockaddr;
1217
1218 JNIEXPORT jint JNICALL
1219 JVM_Socket(jint domain, jint type, jint protocol);
1220
1221 JNIEXPORT jint JNICALL
1222 JVM_SocketClose(jint fd);
1223
1224 JNIEXPORT jint JNICALL
1225 JVM_SocketShutdown(jint fd, jint howto);
1226
1227 JNIEXPORT jint JNICALL
1228 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1229
1230 JNIEXPORT jint JNICALL
1231 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1232
1233 JNIEXPORT jint JNICALL
1234 JVM_Timeout(int fd, long timeout);
1235
1236 JNIEXPORT jint JNICALL
1237 JVM_Listen(jint fd, jint count);
1238
1239 JNIEXPORT jint JNICALL
1240 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1241
1242 JNIEXPORT jint JNICALL
1243 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1244
1245 JNIEXPORT jint JNICALL
1246 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1247
1248 JNIEXPORT jint JNICALL
1249 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1250 int flags, struct sockaddr *from, int *fromlen);
1251
1252 JNIEXPORT jint JNICALL
1253 JVM_SendTo(jint fd, char *buf, int len,
1254 int flags, struct sockaddr *to, int tolen);
1255
1256 JNIEXPORT jint JNICALL
1257 JVM_SocketAvailable(jint fd, jint *result);
1258
1259
1260 JNIEXPORT jint JNICALL
1261 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1262
1263 JNIEXPORT jint JNICALL
1264 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1265
1266 JNIEXPORT jint JNICALL
1267 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1268
1269 JNIEXPORT int JNICALL
1270 JVM_GetHostName(char* name, int namelen);
1271
1272 /*
1273 * The standard printing functions supported by the Java VM. (Should they
1274 * be renamed to JVM_* in the future?
1275 */
1276
1277 /*
1278 * BE CAREFUL! The following functions do not implement the
1279 * full feature set of standard C printf formats.
1280 */
1281 int
1282 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1283
1284 int
1285 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1286
1287 int
1288 jio_fprintf(FILE *, const char *fmt, ...);
1289
1290 int
1291 jio_vfprintf(FILE *, const char *fmt, va_list args);
1292
1293
1294 JNIEXPORT void * JNICALL
1295 JVM_RawMonitorCreate(void);
1296
1297 JNIEXPORT void JNICALL
1298 JVM_RawMonitorDestroy(void *mon);
1299
1300 JNIEXPORT jint JNICALL
1301 JVM_RawMonitorEnter(void *mon);
1302
1303 JNIEXPORT void JNICALL
1304 JVM_RawMonitorExit(void *mon);
1305
1306 /*
1307 * java.lang.management support
1308 */
1309 JNIEXPORT void* JNICALL
1310 JVM_GetManagement(jint version);
1311
1312 /*
1313 * com.sun.tools.attach.VirtualMachine support
1314 *
1315 * Initialize the agent properties with the properties maintained in the VM.
1316 */
1317 JNIEXPORT jobject JNICALL
1318 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1319
1320 /* Generics reflection support.
1321 *
1322 * Returns information about the given class's EnclosingMethod
1323 * attribute, if present, or null if the class had no enclosing
1324 * method.
1325 *
1326 * If non-null, the returned array contains three elements. Element 0
1327 * is the java.lang.Class of which the enclosing method is a member,
1328 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1329 * method's name and descriptor, respectively.
1330 */
1331 JNIEXPORT jobjectArray JNICALL
1332 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1333
1334 /*
1335 * Java thread state support
1336 */
1337 enum {
1338 JAVA_THREAD_STATE_NEW = 0,
1339 JAVA_THREAD_STATE_RUNNABLE = 1,
1340 JAVA_THREAD_STATE_BLOCKED = 2,
1341 JAVA_THREAD_STATE_WAITING = 3,
1342 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1343 JAVA_THREAD_STATE_TERMINATED = 5,
1344 JAVA_THREAD_STATE_COUNT = 6
1345 };
1346
1347 /*
1348 * Returns an array of the threadStatus values representing the
1349 * given Java thread state. Returns NULL if the VM version is
1350 * incompatible with the JDK or doesn't support the given
1351 * Java thread state.
1352 */
1353 JNIEXPORT jintArray JNICALL
1354 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1355
1356 /*
1357 * Returns an array of the substate names representing the
1358 * given Java thread state. Returns NULL if the VM version is
1359 * incompatible with the JDK or the VM doesn't support
1360 * the given Java thread state.
1361 * values must be the jintArray returned from JVM_GetThreadStateValues
1362 * and javaThreadState.
1363 */
1364 JNIEXPORT jobjectArray JNICALL
1365 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1366
1367 /* =========================================================================
1368 * The following defines a private JVM interface that the JDK can query
1369 * for the JVM version and capabilities. sun.misc.Version defines
1370 * the methods for getting the VM version and its capabilities.
1371 *
1372 * When a new bit is added, the following should be updated to provide
1373 * access to the new capability:
1374 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1375 * SDK: Version class
1376 *
1377 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1378 * JVM to query for the JDK version and capabilities.
1379 *
1380 * When a new bit is added, the following should be updated to provide
1381 * access to the new capability:
1382 * HS: JDK_Version class
1383 * SDK: JDK_GetVersionInfo0
1384 *
1385 * ==========================================================================
1386 */
1387 typedef struct {
1388 /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */
1389 unsigned int jvm_version; /* Consists of major, minor, micro (n.n.n) */
1390 /* and build number (xx) */
1391 unsigned int update_version : 8; /* Update release version (uu) */
1392 unsigned int special_update_version : 8; /* Special update release version (c)*/
1393 unsigned int reserved1 : 16;
1394 unsigned int reserved2;
1395
1396 /* The following bits represents JVM supports that JDK has dependency on.
1397 * JDK can use these bits to determine which JVM version
1398 * and support it has to maintain runtime compatibility.
1399 *
1400 * When a new bit is added in a minor or update release, make sure
1401 * the new bit is also added in the main/baseline.
1402 */
1403 unsigned int is_attach_supported : 1;
1404 unsigned int is_kernel_jvm : 1;
1405 unsigned int : 30;
1406 unsigned int : 32;
1407 unsigned int : 32;
1408 } jvm_version_info;
1409
1410 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1411 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1412 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1413
1414 /* Build number is available only for RE builds.
1415 * It will be zero for internal builds.
1416 */
1417 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1418
1419 JNIEXPORT void JNICALL
1420 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1421
1422 typedef struct {
1423 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1424 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1425 /* and build number (xx) */
1426 unsigned int update_version : 8; /* Update release version (uu) */
1427 unsigned int special_update_version : 8; /* Special update release version (c)*/
1428 unsigned int reserved1 : 16;
1429 unsigned int reserved2;
1430
1431 /* The following bits represents new JDK supports that VM has dependency on.
1432 * VM implementation can use these bits to determine which JDK version
1433 * and support it has to maintain runtime compatibility.
1434 *
1435 * When a new bit is added in a minor or update release, make sure
1436 * the new bit is also added in the main/baseline.
1437 */
1438 unsigned int thread_park_blocker : 1;
1439 unsigned int post_vm_init_hook_enabled : 1;
1440 unsigned int pending_list_uses_discovered_field : 1;
1441 unsigned int : 29;
1442 unsigned int : 32;
1443 unsigned int : 32;
1444 } jdk_version_info;
1445
1446 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1447 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1448 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1449
1450 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1451 * It will be zero for internal builds.
1452 */
1453 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1454
1455 /*
1456 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1457 * that is dynamically looked up by JVM.
1458 */
1459 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1460
1461 /*
1462 * This structure is used by the launcher to get the default thread
1463 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1464 * version of 1.1. As it is not supported otherwise, it has been removed
1465 * from jni.h
1466 */
1467 typedef struct JDK1_1InitArgs {
1468 jint version;
1469
1470 char **properties;
1471 jint checkSource;
1472 jint nativeStackSize;
1473 jint javaStackSize;
1474 jint minHeapSize;
1475 jint maxHeapSize;
1476 jint verifyMode;
1477 char *classpath;
1478
1479 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1480 void (JNICALL *exit)(jint code);
1481 void (JNICALL *abort)(void);
1482
1483 jint enableClassGC;
1484 jint enableVerboseGC;
1485 jint disableAsyncGC;
1486 jint verbose;
1487 jboolean debugging;
1488 jint debugPort;
1489 } JDK1_1InitArgs;
1490
1491
1492 #ifdef __cplusplus
1493 } /* extern "C" */
1494
1495 #endif /* __cplusplus */
1496
1497 #endif /* !_JAVASOFT_JVM_H_ */