1 /*
2 * Copyright (c) 1997, 2012, 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 JNIEXPORT void JNICALL
273 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
274
275 /* getStackTrace() and getAllStackTraces() method */
276 JNIEXPORT jobjectArray JNICALL
277 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
278
279 /*
280 * java.lang.SecurityManager
281 */
282 JNIEXPORT jclass JNICALL
283 JVM_CurrentLoadedClass(JNIEnv *env);
284
285 JNIEXPORT jobject JNICALL
286 JVM_CurrentClassLoader(JNIEnv *env);
287
288 JNIEXPORT jobjectArray JNICALL
289 JVM_GetClassContext(JNIEnv *env);
290
291 JNIEXPORT jint JNICALL
292 JVM_ClassDepth(JNIEnv *env, jstring name);
293
294 JNIEXPORT jint JNICALL
295 JVM_ClassLoaderDepth(JNIEnv *env);
296
297 /*
298 * java.lang.Package
299 */
300 JNIEXPORT jstring JNICALL
301 JVM_GetSystemPackage(JNIEnv *env, jstring name);
302
303 JNIEXPORT jobjectArray JNICALL
304 JVM_GetSystemPackages(JNIEnv *env);
305
306 /*
307 * java.io.ObjectInputStream
308 */
309 JNIEXPORT jobject JNICALL
310 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
311 jclass initClass);
312
313 JNIEXPORT jobject JNICALL
314 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
315 jint length);
316
317 JNIEXPORT jobject JNICALL
318 JVM_LatestUserDefinedLoader(JNIEnv *env);
319
320 /*
321 * This function has been deprecated and should not be considered
322 * part of the specified JVM interface.
323 */
324 JNIEXPORT jclass JNICALL
325 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
326 jstring currClassName);
327
328 /*
329 * java.lang.reflect.Array
330 */
331 JNIEXPORT jint JNICALL
332 JVM_GetArrayLength(JNIEnv *env, jobject arr);
333
334 JNIEXPORT jobject JNICALL
335 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
336
337 JNIEXPORT jvalue JNICALL
338 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
339
340 JNIEXPORT void JNICALL
341 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
342
343 JNIEXPORT void JNICALL
344 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
345 unsigned char vCode);
346
347 JNIEXPORT jobject JNICALL
348 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
349
350 JNIEXPORT jobject JNICALL
351 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
352
353 /*
354 * java.lang.Class and java.lang.ClassLoader
355 */
356 /*
357 * Returns the class in which the code invoking the native method
358 * belongs.
359 *
360 * Note that in JDK 1.1, native methods did not create a frame.
361 * In 1.2, they do. Therefore native methods like Class.forName
362 * can no longer look at the current frame for the caller class.
363 */
364 JNIEXPORT jclass JNICALL
365 JVM_GetCallerClass(JNIEnv *env, int n);
366
367 /*
368 * Find primitive classes
369 * utf: class name
370 */
371 JNIEXPORT jclass JNICALL
372 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
373
374 /*
375 * Link the class
376 */
377 JNIEXPORT void JNICALL
378 JVM_ResolveClass(JNIEnv *env, jclass cls);
379
380 /*
381 * Find a class from a boot class loader. Returns NULL if class not found.
382 */
383 JNIEXPORT jclass JNICALL
384 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
385
386 /*
387 * Find a class from a given class loader. Throw ClassNotFoundException
388 * or NoClassDefFoundError depending on the value of the last
389 * argument.
390 */
391 JNIEXPORT jclass JNICALL
392 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
393 jobject loader, jboolean throwError);
394
395 /*
396 * Find a class from a given class.
397 */
398 JNIEXPORT jclass JNICALL
399 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
400 jclass from);
401
402 /* Find a loaded class cached by the VM */
403 JNIEXPORT jclass JNICALL
404 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
405
406 /* Define a class */
407 JNIEXPORT jclass JNICALL
408 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
409 jsize len, jobject pd);
410
411 /* Define a class with a source (added in JDK1.5) */
412 JNIEXPORT jclass JNICALL
413 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
414 const jbyte *buf, jsize len, jobject pd,
415 const char *source);
416
417 /*
418 * Reflection support functions
419 */
420
421 JNIEXPORT jstring JNICALL
422 JVM_GetClassName(JNIEnv *env, jclass cls);
423
424 JNIEXPORT jobjectArray JNICALL
425 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
426
427 JNIEXPORT jobject JNICALL
428 JVM_GetClassLoader(JNIEnv *env, jclass cls);
429
430 JNIEXPORT jboolean JNICALL
431 JVM_IsInterface(JNIEnv *env, jclass cls);
432
433 JNIEXPORT jobjectArray JNICALL
434 JVM_GetClassSigners(JNIEnv *env, jclass cls);
435
436 JNIEXPORT void JNICALL
437 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
438
439 JNIEXPORT jobject JNICALL
440 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
441
442 JNIEXPORT void JNICALL
443 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
444
445 JNIEXPORT jboolean JNICALL
446 JVM_IsArrayClass(JNIEnv *env, jclass cls);
447
448 JNIEXPORT jboolean JNICALL
449 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
450
451 JNIEXPORT jclass JNICALL
452 JVM_GetComponentType(JNIEnv *env, jclass cls);
453
454 JNIEXPORT jint JNICALL
455 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
456
457 JNIEXPORT jobjectArray JNICALL
458 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
459
460 JNIEXPORT jclass JNICALL
461 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
462
463 /* Generics support (JDK 1.5) */
464 JNIEXPORT jstring JNICALL
465 JVM_GetClassSignature(JNIEnv *env, jclass cls);
466
467 /* Annotations support (JDK 1.5) */
468 JNIEXPORT jbyteArray JNICALL
469 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
470
471 /*
472 * New (JDK 1.4) reflection implementation
473 */
474
475 JNIEXPORT jobjectArray JNICALL
476 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
477
478 JNIEXPORT jobjectArray JNICALL
479 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
480
481 JNIEXPORT jobjectArray JNICALL
482 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
483
484 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
485 This returns the access flags for the class as specified in the
486 class file rather than searching the InnerClasses attribute (if
487 present) to find the source-level access flags. Only the values of
488 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
489 valid. */
490 JNIEXPORT jint JNICALL
491 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
492
493 /* The following two reflection routines are still needed due to startup time issues */
494 /*
495 * java.lang.reflect.Method
496 */
497 JNIEXPORT jobject JNICALL
498 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
499
500 /*
501 * java.lang.reflect.Constructor
502 */
503 JNIEXPORT jobject JNICALL
504 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
505
506 /*
507 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
508 */
509
510 JNIEXPORT jobject JNICALL
511 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
512
513 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
514 (JNIEnv *env, jobject unused, jobject jcpool);
515
516 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
517 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
518
519 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
520 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
521
522 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
523 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
524
525 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
526 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
527
528 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
529 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
530
531 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
532 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
533
534 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
535 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
536
537 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
538 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
539
540 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
541 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
542
543 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
544 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
545
546 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
547 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
548
549 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
550 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
551
552 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
553 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
554
555 /*
556 * Parameter reflection
557 */
558
559 JNIEXPORT jobjectArray JNICALL
560 JVM_GetMethodParameters(JNIEnv *env, jobject method);
561
562 /*
563 * java.security.*
564 */
565
566 JNIEXPORT jobject JNICALL
567 JVM_DoPrivileged(JNIEnv *env, jclass cls,
568 jobject action, jobject context, jboolean wrapException);
569
570 JNIEXPORT jobject JNICALL
571 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
572
573 JNIEXPORT jobject JNICALL
574 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
575
576 /*
577 * Signal support, used to implement the shutdown sequence. Every VM must
578 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
579 * (^C) and the latter for external termination (kill, system shutdown, etc.).
580 * Other platform-dependent signal values may also be supported.
581 */
582
583 JNIEXPORT void * JNICALL
584 JVM_RegisterSignal(jint sig, void *handler);
585
586 JNIEXPORT jboolean JNICALL
587 JVM_RaiseSignal(jint sig);
588
589 JNIEXPORT jint JNICALL
590 JVM_FindSignal(const char *name);
591
592 /*
593 * Retrieve the assertion directives for the specified class.
594 */
595 JNIEXPORT jboolean JNICALL
596 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
597
598 /*
599 * Retrieve the assertion directives from the VM.
600 */
601 JNIEXPORT jobject JNICALL
602 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
603
604 /*
605 * java.util.concurrent.atomic.AtomicLong
606 */
607 JNIEXPORT jboolean JNICALL
608 JVM_SupportsCX8(void);
609
610 /*
611 * com.sun.dtrace.jsdt support
612 */
613
614 #define JVM_TRACING_DTRACE_VERSION 1
615
616 /*
617 * Structure to pass one probe description to JVM
618 */
619 typedef struct {
620 jmethodID method;
621 jstring function;
622 jstring name;
623 void* reserved[4]; // for future use
624 } JVM_DTraceProbe;
625
626 /**
627 * Encapsulates the stability ratings for a DTrace provider field
628 */
629 typedef struct {
630 jint nameStability;
631 jint dataStability;
632 jint dependencyClass;
633 } JVM_DTraceInterfaceAttributes;
634
635 /*
636 * Structure to pass one provider description to JVM
637 */
638 typedef struct {
639 jstring name;
640 JVM_DTraceProbe* probes;
641 jint probe_count;
642 JVM_DTraceInterfaceAttributes providerAttributes;
643 JVM_DTraceInterfaceAttributes moduleAttributes;
644 JVM_DTraceInterfaceAttributes functionAttributes;
645 JVM_DTraceInterfaceAttributes nameAttributes;
646 JVM_DTraceInterfaceAttributes argsAttributes;
647 void* reserved[4]; // for future use
648 } JVM_DTraceProvider;
649
650 /*
651 * Get the version number the JVM was built with
652 */
653 JNIEXPORT jint JNICALL
654 JVM_DTraceGetVersion(JNIEnv* env);
655
656 /*
657 * Register new probe with given signature, return global handle
658 *
659 * The version passed in is the version that the library code was
660 * built with.
661 */
662 JNIEXPORT jlong JNICALL
663 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
664 jint providers_count, JVM_DTraceProvider* providers);
665
666 /*
667 * Check JSDT probe
668 */
669 JNIEXPORT jboolean JNICALL
670 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
671
672 /*
673 * Destroy custom DOF
674 */
675 JNIEXPORT void JNICALL
676 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
677
678 /*
679 * Check to see if DTrace is supported by OS
680 */
681 JNIEXPORT jboolean JNICALL
682 JVM_DTraceIsSupported(JNIEnv* env);
683
684 /*************************************************************************
685 PART 2: Support for the Verifier and Class File Format Checker
686 ************************************************************************/
687 /*
688 * Return the class name in UTF format. The result is valid
689 * until JVM_ReleaseUTf is called.
690 *
691 * The caller must treat the string as a constant and not modify it
692 * in any way.
693 */
694 JNIEXPORT const char * JNICALL
695 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
696
697 /*
698 * Returns the constant pool types in the buffer provided by "types."
699 */
700 JNIEXPORT void JNICALL
701 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
702
703 /*
704 * Returns the number of Constant Pool entries.
705 */
706 JNIEXPORT jint JNICALL
707 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
708
709 /*
710 * Returns the number of *declared* fields or methods.
711 */
712 JNIEXPORT jint JNICALL
713 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
714
715 JNIEXPORT jint JNICALL
716 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
717
718 /*
719 * Returns the CP indexes of exceptions raised by a given method.
720 * Places the result in the given buffer.
721 *
722 * The method is identified by method_index.
723 */
724 JNIEXPORT void JNICALL
725 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
726 unsigned short *exceptions);
727 /*
728 * Returns the number of exceptions raised by a given method.
729 * The method is identified by method_index.
730 */
731 JNIEXPORT jint JNICALL
732 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
733
734 /*
735 * Returns the byte code sequence of a given method.
736 * Places the result in the given buffer.
737 *
738 * The method is identified by method_index.
739 */
740 JNIEXPORT void JNICALL
741 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
742 unsigned char *code);
743
744 /*
745 * Returns the length of the byte code sequence of a given method.
746 * The method is identified by method_index.
747 */
748 JNIEXPORT jint JNICALL
749 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
750
751 /*
752 * A structure used to a capture exception table entry in a Java method.
753 */
754 typedef struct {
755 jint start_pc;
756 jint end_pc;
757 jint handler_pc;
758 jint catchType;
759 } JVM_ExceptionTableEntryType;
760
761 /*
762 * Returns the exception table entry at entry_index of a given method.
763 * Places the result in the given buffer.
764 *
765 * The method is identified by method_index.
766 */
767 JNIEXPORT void JNICALL
768 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
769 jint entry_index,
770 JVM_ExceptionTableEntryType *entry);
771
772 /*
773 * Returns the length of the exception table of a given method.
774 * The method is identified by method_index.
775 */
776 JNIEXPORT jint JNICALL
777 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
778
779 /*
780 * Returns the modifiers of a given field.
781 * The field is identified by field_index.
782 */
783 JNIEXPORT jint JNICALL
784 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
785
786 /*
787 * Returns the modifiers of a given method.
788 * The method is identified by method_index.
789 */
790 JNIEXPORT jint JNICALL
791 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
792
793 /*
794 * Returns the number of local variables of a given method.
795 * The method is identified by method_index.
796 */
797 JNIEXPORT jint JNICALL
798 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
799
800 /*
801 * Returns the number of arguments (including this pointer) of a given method.
802 * The method is identified by method_index.
803 */
804 JNIEXPORT jint JNICALL
805 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
806
807 /*
808 * Returns the maximum amount of stack (in words) used by a given method.
809 * The method is identified by method_index.
810 */
811 JNIEXPORT jint JNICALL
812 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
813
814 /*
815 * Is a given method a constructor.
816 * The method is identified by method_index.
817 */
818 JNIEXPORT jboolean JNICALL
819 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
820
821 /*
822 * Returns the name 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_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
830
831 /*
832 * Returns the signature of a given method in UTF format.
833 * The result remains valid until JVM_ReleaseUTF is called.
834 *
835 * The caller must treat the string as a constant and not modify it
836 * in any way.
837 */
838 JNIEXPORT const char * JNICALL
839 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
840
841 /*
842 * Returns the name of the field refered to at a given constant pool
843 * index.
844 *
845 * The result is in UTF format and remains valid until JVM_ReleaseUTF
846 * is called.
847 *
848 * The caller must treat the string as a constant and not modify it
849 * in any way.
850 */
851 JNIEXPORT const char * JNICALL
852 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
853
854 /*
855 * Returns the name of the method refered to at a given constant pool
856 * index.
857 *
858 * The result is in UTF format and remains valid until JVM_ReleaseUTF
859 * is called.
860 *
861 * The caller must treat the string as a constant and not modify it
862 * in any way.
863 */
864 JNIEXPORT const char * JNICALL
865 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
866
867 /*
868 * Returns the signature of the method refered to at a given constant pool
869 * index.
870 *
871 * The result is in UTF format and remains valid until JVM_ReleaseUTF
872 * is called.
873 *
874 * The caller must treat the string as a constant and not modify it
875 * in any way.
876 */
877 JNIEXPORT const char * JNICALL
878 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
879
880 /*
881 * Returns the signature of the field refered to at a given constant pool
882 * index.
883 *
884 * The result is in UTF format and remains valid until JVM_ReleaseUTF
885 * is called.
886 *
887 * The caller must treat the string as a constant and not modify it
888 * in any way.
889 */
890 JNIEXPORT const char * JNICALL
891 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
892
893 /*
894 * Returns the class name refered to at a given constant pool index.
895 *
896 * The result is in UTF format and remains valid until JVM_ReleaseUTF
897 * is called.
898 *
899 * The caller must treat the string as a constant and not modify it
900 * in any way.
901 */
902 JNIEXPORT const char * JNICALL
903 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
904
905 /*
906 * Returns the class name refered to at a given constant pool index.
907 *
908 * The constant pool entry must refer to a CONSTANT_Fieldref.
909 *
910 * The result is in UTF format and remains valid until JVM_ReleaseUTF
911 * is called.
912 *
913 * The caller must treat the string as a constant and not modify it
914 * in any way.
915 */
916 JNIEXPORT const char * JNICALL
917 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
918
919 /*
920 * Returns the class name refered to at a given constant pool index.
921 *
922 * The constant pool entry must refer to CONSTANT_Methodref or
923 * CONSTANT_InterfaceMethodref.
924 *
925 * The result is in UTF format and remains valid until JVM_ReleaseUTF
926 * is called.
927 *
928 * The caller must treat the string as a constant and not modify it
929 * in any way.
930 */
931 JNIEXPORT const char * JNICALL
932 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
933
934 /*
935 * Returns the modifiers of a field in calledClass. The field is
936 * referred to in class cb at constant pool entry index.
937 *
938 * The caller must treat the string as a constant and not modify it
939 * in any way.
940 *
941 * Returns -1 if the field does not exist in calledClass.
942 */
943 JNIEXPORT jint JNICALL
944 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
945
946 /*
947 * Returns the modifiers of a method in calledClass. The method is
948 * referred to in class cb at constant pool entry index.
949 *
950 * Returns -1 if the method does not exist in calledClass.
951 */
952 JNIEXPORT jint JNICALL
953 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
954
955 /*
956 * Releases the UTF string obtained from the VM.
957 */
958 JNIEXPORT void JNICALL
959 JVM_ReleaseUTF(const char *utf);
960
961 /*
962 * Compare if two classes are in the same package.
963 */
964 JNIEXPORT jboolean JNICALL
965 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
966
967 /* Get classfile constants */
968 #include "classfile_constants.h"
969
970 /*
971 * A function defined by the byte-code verifier and called by the VM.
972 * This is not a function implemented in the VM.
973 *
974 * Returns JNI_FALSE if verification fails. A detailed error message
975 * will be places in msg_buf, whose length is specified by buf_len.
976 */
977 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
978 jclass cb,
979 char * msg_buf,
980 jint buf_len);
981
982
983 /*
984 * Support for a VM-independent class format checker.
985 */
986 typedef struct {
987 unsigned long code; /* byte code */
988 unsigned long excs; /* exceptions */
989 unsigned long etab; /* catch table */
990 unsigned long lnum; /* line number */
991 unsigned long lvar; /* local vars */
992 } method_size_info;
993
994 typedef struct {
995 unsigned int constants; /* constant pool */
996 unsigned int fields;
997 unsigned int methods;
998 unsigned int interfaces;
999 unsigned int fields2; /* number of static 2-word fields */
1000 unsigned int innerclasses; /* # of records in InnerClasses attr */
1001
1002 method_size_info clinit; /* memory used in clinit */
1003 method_size_info main; /* used everywhere else */
1004 } class_size_info;
1005
1006 /*
1007 * Functions defined in libjava.so to perform string conversions.
1008 *
1009 */
1010
1011 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1012
1013 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1014
1015 /* This is the function defined in libjava.so that performs class
1016 * format checks. This functions fills in size information about
1017 * the class file and returns:
1018 *
1019 * 0: good
1020 * -1: out of memory
1021 * -2: bad format
1022 * -3: unsupported version
1023 * -4: bad class name
1024 */
1025
1026 typedef jint (*check_format_fn_t)(char *class_name,
1027 unsigned char *data,
1028 unsigned int data_size,
1029 class_size_info *class_size,
1030 char *message_buffer,
1031 jint buffer_length,
1032 jboolean measure_only,
1033 jboolean check_relaxed);
1034
1035 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1036 JVM_ACC_FINAL | \
1037 JVM_ACC_SUPER | \
1038 JVM_ACC_INTERFACE | \
1039 JVM_ACC_ABSTRACT | \
1040 JVM_ACC_ANNOTATION | \
1041 JVM_ACC_ENUM | \
1042 JVM_ACC_SYNTHETIC)
1043
1044 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1045 JVM_ACC_PRIVATE | \
1046 JVM_ACC_PROTECTED | \
1047 JVM_ACC_STATIC | \
1048 JVM_ACC_FINAL | \
1049 JVM_ACC_VOLATILE | \
1050 JVM_ACC_TRANSIENT | \
1051 JVM_ACC_ENUM | \
1052 JVM_ACC_SYNTHETIC)
1053
1054 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1055 JVM_ACC_PRIVATE | \
1056 JVM_ACC_PROTECTED | \
1057 JVM_ACC_STATIC | \
1058 JVM_ACC_FINAL | \
1059 JVM_ACC_SYNCHRONIZED | \
1060 JVM_ACC_BRIDGE | \
1061 JVM_ACC_VARARGS | \
1062 JVM_ACC_NATIVE | \
1063 JVM_ACC_ABSTRACT | \
1064 JVM_ACC_STRICT | \
1065 JVM_ACC_SYNTHETIC)
1066
1067 /*
1068 * This is the function defined in libjava.so to perform path
1069 * canonicalization. VM call this function before opening jar files
1070 * to load system classes.
1071 *
1072 */
1073
1074 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1075
1076 /*************************************************************************
1077 PART 3: I/O and Network Support
1078 ************************************************************************/
1079
1080 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1081 * when there is any kind of error. The caller can then use the
1082 * platform specific support (e.g., errno) to get the detailed
1083 * error info. The JVM_GetLastErrorString procedure may also be used
1084 * to obtain a descriptive error string.
1085 */
1086 #define JVM_IO_ERR (-1)
1087
1088 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1089 * operation has been disrupted by Thread.interrupt. There are a
1090 * number of technical difficulties related to interruptible IO that
1091 * need to be solved. For example, most existing programs do not handle
1092 * InterruptedIOExceptions specially, they simply treat those as any
1093 * IOExceptions, which typically indicate fatal errors.
1094 *
1095 * There are also two modes of operation for interruptible IO. In the
1096 * resumption mode, an interrupted IO operation is guaranteed not to
1097 * have any side-effects, and can be restarted. In the termination mode,
1098 * an interrupted IO operation corrupts the underlying IO stream, so
1099 * that the only reasonable operation on an interrupted stream is to
1100 * close that stream. The resumption mode seems to be impossible to
1101 * implement on Win32 and Solaris. Implementing the termination mode is
1102 * easier, but it's not clear that's the right semantics.
1103 *
1104 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1105 * using a compile-time flag on Solaris. Third-party JVM ports do not
1106 * need to implement interruptible IO.
1107 */
1108 #define JVM_IO_INTR (-2)
1109
1110 /* Write a string into the given buffer, in the platform's local encoding,
1111 * that describes the most recent system-level error to occur in this thread.
1112 * Return the length of the string or zero if no error occurred.
1113 */
1114 JNIEXPORT jint JNICALL
1115 JVM_GetLastErrorString(char *buf, int len);
1116
1117 /*
1118 * Convert a pathname into native format. This function does syntactic
1119 * cleanup, such as removing redundant separator characters. It modifies
1120 * the given pathname string in place.
1121 */
1122 JNIEXPORT char * JNICALL
1123 JVM_NativePath(char *);
1124
1125 /*
1126 * JVM I/O error codes
1127 */
1128 #define JVM_EEXIST -100
1129
1130 /*
1131 * Open a file descriptor. This function returns a negative error code
1132 * on error, and a non-negative integer that is the file descriptor on
1133 * success.
1134 */
1135 JNIEXPORT jint JNICALL
1136 JVM_Open(const char *fname, jint flags, jint mode);
1137
1138 /*
1139 * Close a file descriptor. This function returns -1 on error, and 0
1140 * on success.
1141 *
1142 * fd the file descriptor to close.
1143 */
1144 JNIEXPORT jint JNICALL
1145 JVM_Close(jint fd);
1146
1147 /*
1148 * Read data from a file decriptor into a char array.
1149 *
1150 * fd the file descriptor to read from.
1151 * buf the buffer where to put the read data.
1152 * nbytes the number of bytes to read.
1153 *
1154 * This function returns -1 on error, and 0 on success.
1155 */
1156 JNIEXPORT jint JNICALL
1157 JVM_Read(jint fd, char *buf, jint nbytes);
1158
1159 /*
1160 * Write data from a char array to a file decriptor.
1161 *
1162 * fd the file descriptor to read from.
1163 * buf the buffer from which to fetch the data.
1164 * nbytes the number of bytes to write.
1165 *
1166 * This function returns -1 on error, and 0 on success.
1167 */
1168 JNIEXPORT jint JNICALL
1169 JVM_Write(jint fd, char *buf, jint nbytes);
1170
1171 /*
1172 * Returns the number of bytes available for reading from a given file
1173 * descriptor
1174 */
1175 JNIEXPORT jint JNICALL
1176 JVM_Available(jint fd, jlong *pbytes);
1177
1178 /*
1179 * Move the file descriptor pointer from whence by offset.
1180 *
1181 * fd the file descriptor to move.
1182 * offset the number of bytes to move it by.
1183 * whence the start from where to move it.
1184 *
1185 * This function returns the resulting pointer location.
1186 */
1187 JNIEXPORT jlong JNICALL
1188 JVM_Lseek(jint fd, jlong offset, jint whence);
1189
1190 /*
1191 * Set the length of the file associated with the given descriptor to the given
1192 * length. If the new length is longer than the current length then the file
1193 * is extended; the contents of the extended portion are not defined. The
1194 * value of the file pointer is undefined after this procedure returns.
1195 */
1196 JNIEXPORT jint JNICALL
1197 JVM_SetLength(jint fd, jlong length);
1198
1199 /*
1200 * Synchronize the file descriptor's in memory state with that of the
1201 * physical device. Return of -1 is an error, 0 is OK.
1202 */
1203 JNIEXPORT jint JNICALL
1204 JVM_Sync(jint fd);
1205
1206 /*
1207 * Networking library support
1208 */
1209
1210 JNIEXPORT jint JNICALL
1211 JVM_InitializeSocketLibrary(void);
1212
1213 struct sockaddr;
1214
1215 JNIEXPORT jint JNICALL
1216 JVM_Socket(jint domain, jint type, jint protocol);
1217
1218 JNIEXPORT jint JNICALL
1219 JVM_SocketClose(jint fd);
1220
1221 JNIEXPORT jint JNICALL
1222 JVM_SocketShutdown(jint fd, jint howto);
1223
1224 JNIEXPORT jint JNICALL
1225 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1226
1227 JNIEXPORT jint JNICALL
1228 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1229
1230 JNIEXPORT jint JNICALL
1231 JVM_Timeout(int fd, long timeout);
1232
1233 JNIEXPORT jint JNICALL
1234 JVM_Listen(jint fd, jint count);
1235
1236 JNIEXPORT jint JNICALL
1237 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1238
1239 JNIEXPORT jint JNICALL
1240 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1241
1242 JNIEXPORT jint JNICALL
1243 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1244
1245 JNIEXPORT jint JNICALL
1246 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1247 int flags, struct sockaddr *from, int *fromlen);
1248
1249 JNIEXPORT jint JNICALL
1250 JVM_SendTo(jint fd, char *buf, int len,
1251 int flags, struct sockaddr *to, int tolen);
1252
1253 JNIEXPORT jint JNICALL
1254 JVM_SocketAvailable(jint fd, jint *result);
1255
1256
1257 JNIEXPORT jint JNICALL
1258 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1259
1260 JNIEXPORT jint JNICALL
1261 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1262
1263 JNIEXPORT jint JNICALL
1264 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1265
1266 JNIEXPORT int JNICALL
1267 JVM_GetHostName(char* name, int namelen);
1268
1269 /*
1270 * The standard printing functions supported by the Java VM. (Should they
1271 * be renamed to JVM_* in the future?
1272 */
1273
1274 /*
1275 * BE CAREFUL! The following functions do not implement the
1276 * full feature set of standard C printf formats.
1277 */
1278 int
1279 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1280
1281 int
1282 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1283
1284 int
1285 jio_fprintf(FILE *, const char *fmt, ...);
1286
1287 int
1288 jio_vfprintf(FILE *, const char *fmt, va_list args);
1289
1290
1291 JNIEXPORT void * JNICALL
1292 JVM_RawMonitorCreate(void);
1293
1294 JNIEXPORT void JNICALL
1295 JVM_RawMonitorDestroy(void *mon);
1296
1297 JNIEXPORT jint JNICALL
1298 JVM_RawMonitorEnter(void *mon);
1299
1300 JNIEXPORT void JNICALL
1301 JVM_RawMonitorExit(void *mon);
1302
1303 /*
1304 * java.lang.management support
1305 */
1306 JNIEXPORT void* JNICALL
1307 JVM_GetManagement(jint version);
1308
1309 /*
1310 * com.sun.tools.attach.VirtualMachine support
1311 *
1312 * Initialize the agent properties with the properties maintained in the VM.
1313 */
1314 JNIEXPORT jobject JNICALL
1315 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1316
1317 /* Generics reflection support.
1318 *
1319 * Returns information about the given class's EnclosingMethod
1320 * attribute, if present, or null if the class had no enclosing
1321 * method.
1322 *
1323 * If non-null, the returned array contains three elements. Element 0
1324 * is the java.lang.Class of which the enclosing method is a member,
1325 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1326 * method's name and descriptor, respectively.
1327 */
1328 JNIEXPORT jobjectArray JNICALL
1329 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1330
1331 /*
1332 * Java thread state support
1333 */
1334 enum {
1335 JAVA_THREAD_STATE_NEW = 0,
1336 JAVA_THREAD_STATE_RUNNABLE = 1,
1337 JAVA_THREAD_STATE_BLOCKED = 2,
1338 JAVA_THREAD_STATE_WAITING = 3,
1339 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1340 JAVA_THREAD_STATE_TERMINATED = 5,
1341 JAVA_THREAD_STATE_COUNT = 6
1342 };
1343
1344 /*
1345 * Returns an array of the threadStatus values representing the
1346 * given Java thread state. Returns NULL if the VM version is
1347 * incompatible with the JDK or doesn't support the given
1348 * Java thread state.
1349 */
1350 JNIEXPORT jintArray JNICALL
1351 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1352
1353 /*
1354 * Returns an array of the substate names representing the
1355 * given Java thread state. Returns NULL if the VM version is
1356 * incompatible with the JDK or the VM doesn't support
1357 * the given Java thread state.
1358 * values must be the jintArray returned from JVM_GetThreadStateValues
1359 * and javaThreadState.
1360 */
1361 JNIEXPORT jobjectArray JNICALL
1362 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1363
1364 /* =========================================================================
1365 * The following defines a private JVM interface that the JDK can query
1366 * for the JVM version and capabilities. sun.misc.Version defines
1367 * the methods for getting the VM version and its capabilities.
1368 *
1369 * When a new bit is added, the following should be updated to provide
1370 * access to the new capability:
1371 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1372 * SDK: Version class
1373 *
1374 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1375 * JVM to query for the JDK version and capabilities.
1376 *
1377 * When a new bit is added, the following should be updated to provide
1378 * access to the new capability:
1379 * HS: JDK_Version class
1380 * SDK: JDK_GetVersionInfo0
1381 *
1382 * ==========================================================================
1383 */
1384 typedef struct {
1385 /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */
1386 unsigned int jvm_version; /* Consists of major, minor, micro (n.n.n) */
1387 /* and build number (xx) */
1388 unsigned int update_version : 8; /* Update release version (uu) */
1389 unsigned int special_update_version : 8; /* Special update release version (c)*/
1390 unsigned int reserved1 : 16;
1391 unsigned int reserved2;
1392
1393 /* The following bits represents JVM supports that JDK has dependency on.
1394 * JDK can use these bits to determine which JVM version
1395 * and support it has to maintain runtime compatibility.
1396 *
1397 * When a new bit is added in a minor or update release, make sure
1398 * the new bit is also added in the main/baseline.
1399 */
1400 unsigned int is_attach_supported : 1;
1401 unsigned int is_kernel_jvm : 1;
1402 unsigned int : 30;
1403 unsigned int : 32;
1404 unsigned int : 32;
1405 } jvm_version_info;
1406
1407 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1408 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1409 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1410
1411 /* Build number is available only for RE builds.
1412 * It will be zero for internal builds.
1413 */
1414 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1415
1416 JNIEXPORT void JNICALL
1417 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1418
1419 typedef struct {
1420 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1421 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1422 /* and build number (xx) */
1423 unsigned int update_version : 8; /* Update release version (uu) */
1424 unsigned int special_update_version : 8; /* Special update release version (c)*/
1425 unsigned int reserved1 : 16;
1426 unsigned int reserved2;
1427
1428 /* The following bits represents new JDK supports that VM has dependency on.
1429 * VM implementation can use these bits to determine which JDK version
1430 * and support it has to maintain runtime compatibility.
1431 *
1432 * When a new bit is added in a minor or update release, make sure
1433 * the new bit is also added in the main/baseline.
1434 */
1435 unsigned int thread_park_blocker : 1;
1436 unsigned int post_vm_init_hook_enabled : 1;
1437 unsigned int pending_list_uses_discovered_field : 1;
1438 unsigned int : 29;
1439 unsigned int : 32;
1440 unsigned int : 32;
1441 } jdk_version_info;
1442
1443 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1444 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1445 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1446
1447 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1448 * It will be zero for internal builds.
1449 */
1450 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1451
1452 /*
1453 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1454 * that is dynamically looked up by JVM.
1455 */
1456 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1457
1458 /*
1459 * This structure is used by the launcher to get the default thread
1460 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1461 * version of 1.1. As it is not supported otherwise, it has been removed
1462 * from jni.h
1463 */
1464 typedef struct JDK1_1InitArgs {
1465 jint version;
1466
1467 char **properties;
1468 jint checkSource;
1469 jint nativeStackSize;
1470 jint javaStackSize;
1471 jint minHeapSize;
1472 jint maxHeapSize;
1473 jint verifyMode;
1474 char *classpath;
1475
1476 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1477 void (JNICALL *exit)(jint code);
1478 void (JNICALL *abort)(void);
1479
1480 jint enableClassGC;
1481 jint enableVerboseGC;
1482 jint disableAsyncGC;
1483 jint verbose;
1484 jboolean debugging;
1485 jint debugPort;
1486 } JDK1_1InitArgs;
1487
1488
1489 #ifdef __cplusplus
1490 } /* extern "C" */
1491
1492 #endif /* __cplusplus */
1493
1494 #endif /* !_JAVASOFT_JVM_H_ */