1 /*
2 * Copyright (c) 1997, 2014, 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 #define JVM_CALLER_DEPTH -1
355
356 /*
357 * Returns the immediate caller class of the native method invoking
358 * JVM_GetCallerClass. The Method.invoke and other frames due to
359 * reflection machinery are skipped.
360 *
361 * The depth parameter must be -1 (JVM_DEPTH). The caller is expected
362 * to be marked with sun.reflect.CallerSensitive. The JVM will throw
363 * an error if it is not marked propertly.
364 */
365 JNIEXPORT jclass JNICALL
366 JVM_GetCallerClass(JNIEnv *env, int depth);
367
368
369 /*
370 * Find primitive classes
371 * utf: class name
372 */
373 JNIEXPORT jclass JNICALL
374 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
375
376 /*
377 * Link the class
378 */
379 JNIEXPORT void JNICALL
380 JVM_ResolveClass(JNIEnv *env, jclass cls);
381
382 /*
383 * Find a class from a boot class loader. Returns NULL if class not found.
384 */
385 JNIEXPORT jclass JNICALL
386 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
387
388 /*
389 * Find a class from a given class loader. Throw ClassNotFoundException
390 * or NoClassDefFoundError depending on the value of the last
391 * argument.
392 */
393 JNIEXPORT jclass JNICALL
394 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
395 jobject loader, jboolean throwError);
396
397 /*
398 * Find a class from a given class.
399 */
400 JNIEXPORT jclass JNICALL
401 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
402 jclass from);
403
404 /* Find a loaded class cached by the VM */
405 JNIEXPORT jclass JNICALL
406 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
407
408 /* Define a class */
409 JNIEXPORT jclass JNICALL
410 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
411 jsize len, jobject pd);
412
413 /* Define a class with a source (added in JDK1.5) */
414 JNIEXPORT jclass JNICALL
415 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
416 const jbyte *buf, jsize len, jobject pd,
417 const char *source);
418
419 /*
420 * Reflection support functions
421 */
422
423 JNIEXPORT jstring JNICALL
424 JVM_GetClassName(JNIEnv *env, jclass cls);
425
426 JNIEXPORT jobjectArray JNICALL
427 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
428
429 JNIEXPORT jboolean JNICALL
430 JVM_IsInterface(JNIEnv *env, jclass cls);
431
432 JNIEXPORT jobjectArray JNICALL
433 JVM_GetClassSigners(JNIEnv *env, jclass cls);
434
435 JNIEXPORT void JNICALL
436 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
437
438 JNIEXPORT jobject JNICALL
439 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
440
441 JNIEXPORT jboolean JNICALL
442 JVM_IsArrayClass(JNIEnv *env, jclass cls);
443
444 JNIEXPORT jboolean JNICALL
445 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
446
447 JNIEXPORT jclass JNICALL
448 JVM_GetComponentType(JNIEnv *env, jclass cls);
449
450 JNIEXPORT jint JNICALL
451 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
452
453 JNIEXPORT jobjectArray JNICALL
454 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
455
456 JNIEXPORT jclass JNICALL
457 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
458
459 /* Generics support (JDK 1.5) */
460 JNIEXPORT jstring JNICALL
461 JVM_GetClassSignature(JNIEnv *env, jclass cls);
462
463 /* Annotations support (JDK 1.5) */
464 JNIEXPORT jbyteArray JNICALL
465 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
466
467 /* Type use annotations support (JDK 1.8) */
468
469 JNIEXPORT jbyteArray JNICALL
470 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
471
472 JNIEXPORT jbyteArray JNICALL
473 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
474
475 JNIEXPORT jbyteArray JNICALL
476 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
477
478 /*
479 * New (JDK 1.4) reflection implementation
480 */
481
482 JNIEXPORT jobjectArray JNICALL
483 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
484
485 JNIEXPORT jobjectArray JNICALL
486 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
487
488 JNIEXPORT jobjectArray JNICALL
489 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
490
491 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
492 This returns the access flags for the class as specified in the
493 class file rather than searching the InnerClasses attribute (if
494 present) to find the source-level access flags. Only the values of
495 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
496 valid. */
497 JNIEXPORT jint JNICALL
498 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
499
500 /* The following two reflection routines are still needed due to startup time issues */
501 /*
502 * java.lang.reflect.Method
503 */
504 JNIEXPORT jobject JNICALL
505 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
506
507 /*
508 * java.lang.reflect.Constructor
509 */
510 JNIEXPORT jobject JNICALL
511 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
512
513 /*
514 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
515 */
516
517 JNIEXPORT jobject JNICALL
518 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
519
520 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
521 (JNIEnv *env, jobject unused, jobject jcpool);
522
523 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
524 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
525
526 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
527 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
528
529 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
530 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
531
532 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
533 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
534
535 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
536 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
537
538 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
539 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
540
541 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
542 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
543
544 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
545 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
546
547 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
548 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
549
550 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
551 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
552
553 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
554 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
555
556 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
557 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
558
559 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
560 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
561
562 /*
563 * Parameter reflection
564 */
565
566 JNIEXPORT jobjectArray JNICALL
567 JVM_GetMethodParameters(JNIEnv *env, jobject method);
568
569 /*
570 * java.security.*
571 */
572
573 JNIEXPORT jobject JNICALL
574 JVM_DoPrivileged(JNIEnv *env, jclass cls,
575 jobject action, jobject context, jboolean wrapException);
576
577 JNIEXPORT jobject JNICALL
578 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
579
580 JNIEXPORT jobject JNICALL
581 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
582
583 /*
584 * Signal support, used to implement the shutdown sequence. Every VM must
585 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
586 * (^C) and the latter for external termination (kill, system shutdown, etc.).
587 * Other platform-dependent signal values may also be supported.
588 */
589
590 JNIEXPORT void * JNICALL
591 JVM_RegisterSignal(jint sig, void *handler);
592
593 JNIEXPORT jboolean JNICALL
594 JVM_RaiseSignal(jint sig);
595
596 JNIEXPORT jint JNICALL
597 JVM_FindSignal(const char *name);
598
599 /*
600 * Retrieve the assertion directives for the specified class.
601 */
602 JNIEXPORT jboolean JNICALL
603 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
604
605 /*
606 * Retrieve the assertion directives from the VM.
607 */
608 JNIEXPORT jobject JNICALL
609 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
610
611 /*
612 * java.util.concurrent.atomic.AtomicLong
613 */
614 JNIEXPORT jboolean JNICALL
615 JVM_SupportsCX8(void);
616
617 /*
618 * com.sun.dtrace.jsdt support
619 */
620
621 #define JVM_TRACING_DTRACE_VERSION 1
622
623 /*
624 * Structure to pass one probe description to JVM
625 */
626 typedef struct {
627 jmethodID method;
628 jstring function;
629 jstring name;
630 void* reserved[4]; // for future use
631 } JVM_DTraceProbe;
632
633 /**
634 * Encapsulates the stability ratings for a DTrace provider field
635 */
636 typedef struct {
637 jint nameStability;
638 jint dataStability;
639 jint dependencyClass;
640 } JVM_DTraceInterfaceAttributes;
641
642 /*
643 * Structure to pass one provider description to JVM
644 */
645 typedef struct {
646 jstring name;
647 JVM_DTraceProbe* probes;
648 jint probe_count;
649 JVM_DTraceInterfaceAttributes providerAttributes;
650 JVM_DTraceInterfaceAttributes moduleAttributes;
651 JVM_DTraceInterfaceAttributes functionAttributes;
652 JVM_DTraceInterfaceAttributes nameAttributes;
653 JVM_DTraceInterfaceAttributes argsAttributes;
654 void* reserved[4]; // for future use
655 } JVM_DTraceProvider;
656
657 /*
658 * Get the version number the JVM was built with
659 */
660 JNIEXPORT jint JNICALL
661 JVM_DTraceGetVersion(JNIEnv* env);
662
663 /*
664 * Register new probe with given signature, return global handle
665 *
666 * The version passed in is the version that the library code was
667 * built with.
668 */
669 JNIEXPORT jlong JNICALL
670 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
671 jint providers_count, JVM_DTraceProvider* providers);
672
673 /*
674 * Check JSDT probe
675 */
676 JNIEXPORT jboolean JNICALL
677 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
678
679 /*
680 * Destroy custom DOF
681 */
682 JNIEXPORT void JNICALL
683 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
684
685 /*
686 * Check to see if DTrace is supported by OS
687 */
688 JNIEXPORT jboolean JNICALL
689 JVM_DTraceIsSupported(JNIEnv* env);
690
691 /*************************************************************************
692 PART 2: Support for the Verifier and Class File Format Checker
693 ************************************************************************/
694 /*
695 * Return the class name in UTF format. The result is valid
696 * until JVM_ReleaseUTf is called.
697 *
698 * The caller must treat the string as a constant and not modify it
699 * in any way.
700 */
701 JNIEXPORT const char * JNICALL
702 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
703
704 /*
705 * Returns the constant pool types in the buffer provided by "types."
706 */
707 JNIEXPORT void JNICALL
708 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
709
710 /*
711 * Returns the number of Constant Pool entries.
712 */
713 JNIEXPORT jint JNICALL
714 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
715
716 /*
717 * Returns the number of *declared* fields or methods.
718 */
719 JNIEXPORT jint JNICALL
720 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
721
722 JNIEXPORT jint JNICALL
723 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
724
725 /*
726 * Returns the CP indexes of exceptions raised by a given method.
727 * Places the result in the given buffer.
728 *
729 * The method is identified by method_index.
730 */
731 JNIEXPORT void JNICALL
732 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
733 unsigned short *exceptions);
734 /*
735 * Returns the number of exceptions raised by a given method.
736 * The method is identified by method_index.
737 */
738 JNIEXPORT jint JNICALL
739 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
740
741 /*
742 * Returns the byte code sequence of a given method.
743 * Places the result in the given buffer.
744 *
745 * The method is identified by method_index.
746 */
747 JNIEXPORT void JNICALL
748 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
749 unsigned char *code);
750
751 /*
752 * Returns the length of the byte code sequence of a given method.
753 * The method is identified by method_index.
754 */
755 JNIEXPORT jint JNICALL
756 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
757
758 /*
759 * A structure used to a capture exception table entry in a Java method.
760 */
761 typedef struct {
762 jint start_pc;
763 jint end_pc;
764 jint handler_pc;
765 jint catchType;
766 } JVM_ExceptionTableEntryType;
767
768 /*
769 * Returns the exception table entry at entry_index of a given method.
770 * Places the result in the given buffer.
771 *
772 * The method is identified by method_index.
773 */
774 JNIEXPORT void JNICALL
775 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
776 jint entry_index,
777 JVM_ExceptionTableEntryType *entry);
778
779 /*
780 * Returns the length of the exception table of a given method.
781 * The method is identified by method_index.
782 */
783 JNIEXPORT jint JNICALL
784 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
785
786 /*
787 * Returns the modifiers of a given field.
788 * The field is identified by field_index.
789 */
790 JNIEXPORT jint JNICALL
791 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
792
793 /*
794 * Returns the modifiers of a given method.
795 * The method is identified by method_index.
796 */
797 JNIEXPORT jint JNICALL
798 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
799
800 /*
801 * Returns the number of local variables of a given method.
802 * The method is identified by method_index.
803 */
804 JNIEXPORT jint JNICALL
805 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
806
807 /*
808 * Returns the number of arguments (including this pointer) of a given method.
809 * The method is identified by method_index.
810 */
811 JNIEXPORT jint JNICALL
812 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
813
814 /*
815 * Returns the maximum amount of stack (in words) used by a given method.
816 * The method is identified by method_index.
817 */
818 JNIEXPORT jint JNICALL
819 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
820
821 /*
822 * Is a given method a constructor.
823 * The method is identified by method_index.
824 */
825 JNIEXPORT jboolean JNICALL
826 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
827
828 /*
829 * Is the given method generated by the VM.
830 * The method is identified by method_index.
831 */
832 JNIEXPORT jboolean JNICALL
833 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
834
835 /*
836 * Returns the name of a given method in UTF format.
837 * The result remains valid until JVM_ReleaseUTF is called.
838 *
839 * The caller must treat the string as a constant and not modify it
840 * in any way.
841 */
842 JNIEXPORT const char * JNICALL
843 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
844
845 /*
846 * Returns the signature of a given method in UTF format.
847 * The result remains valid until JVM_ReleaseUTF is called.
848 *
849 * The caller must treat the string as a constant and not modify it
850 * in any way.
851 */
852 JNIEXPORT const char * JNICALL
853 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
854
855 /*
856 * Returns the name of the field referred to at a given constant pool
857 * index.
858 *
859 * The result is in UTF format and remains valid until JVM_ReleaseUTF
860 * is called.
861 *
862 * The caller must treat the string as a constant and not modify it
863 * in any way.
864 */
865 JNIEXPORT const char * JNICALL
866 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
867
868 /*
869 * Returns the name of the method referred to at a given constant pool
870 * index.
871 *
872 * The result is in UTF format and remains valid until JVM_ReleaseUTF
873 * is called.
874 *
875 * The caller must treat the string as a constant and not modify it
876 * in any way.
877 */
878 JNIEXPORT const char * JNICALL
879 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
880
881 /*
882 * Returns the signature of the method referred to at a given constant pool
883 * index.
884 *
885 * The result is in UTF format and remains valid until JVM_ReleaseUTF
886 * is called.
887 *
888 * The caller must treat the string as a constant and not modify it
889 * in any way.
890 */
891 JNIEXPORT const char * JNICALL
892 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
893
894 /*
895 * Returns the signature of the field referred to at a given constant pool
896 * index.
897 *
898 * The result is in UTF format and remains valid until JVM_ReleaseUTF
899 * is called.
900 *
901 * The caller must treat the string as a constant and not modify it
902 * in any way.
903 */
904 JNIEXPORT const char * JNICALL
905 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
906
907 /*
908 * Returns the class name referred to at a given constant pool index.
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_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
918
919 /*
920 * Returns the class name referred to at a given constant pool index.
921 *
922 * The constant pool entry must refer to a CONSTANT_Fieldref.
923 *
924 * The result is in UTF format and remains valid until JVM_ReleaseUTF
925 * is called.
926 *
927 * The caller must treat the string as a constant and not modify it
928 * in any way.
929 */
930 JNIEXPORT const char * JNICALL
931 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
932
933 /*
934 * Returns the class name referred to at a given constant pool index.
935 *
936 * The constant pool entry must refer to CONSTANT_Methodref or
937 * CONSTANT_InterfaceMethodref.
938 *
939 * The result is in UTF format and remains valid until JVM_ReleaseUTF
940 * is called.
941 *
942 * The caller must treat the string as a constant and not modify it
943 * in any way.
944 */
945 JNIEXPORT const char * JNICALL
946 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
947
948 /*
949 * Returns the modifiers of a field in calledClass. The field is
950 * referred to in class cb at constant pool entry index.
951 *
952 * The caller must treat the string as a constant and not modify it
953 * in any way.
954 *
955 * Returns -1 if the field does not exist in calledClass.
956 */
957 JNIEXPORT jint JNICALL
958 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
959
960 /*
961 * Returns the modifiers of a method in calledClass. The method is
962 * referred to in class cb at constant pool entry index.
963 *
964 * Returns -1 if the method does not exist in calledClass.
965 */
966 JNIEXPORT jint JNICALL
967 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
968
969 /*
970 * Releases the UTF string obtained from the VM.
971 */
972 JNIEXPORT void JNICALL
973 JVM_ReleaseUTF(const char *utf);
974
975 /*
976 * Compare if two classes are in the same package.
977 */
978 JNIEXPORT jboolean JNICALL
979 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
980
981 /* Get classfile constants */
982 #include "classfile_constants.h"
983
984 /*
985 * A function defined by the byte-code verifier and called by the VM.
986 * This is not a function implemented in the VM.
987 *
988 * Returns JNI_FALSE if verification fails. A detailed error message
989 * will be places in msg_buf, whose length is specified by buf_len.
990 */
991 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
992 jclass cb,
993 char * msg_buf,
994 jint buf_len);
995
996
997 /*
998 * Support for a VM-independent class format checker.
999 */
1000 typedef struct {
1001 unsigned long code; /* byte code */
1002 unsigned long excs; /* exceptions */
1003 unsigned long etab; /* catch table */
1004 unsigned long lnum; /* line number */
1005 unsigned long lvar; /* local vars */
1006 } method_size_info;
1007
1008 typedef struct {
1009 unsigned int constants; /* constant pool */
1010 unsigned int fields;
1011 unsigned int methods;
1012 unsigned int interfaces;
1013 unsigned int fields2; /* number of static 2-word fields */
1014 unsigned int innerclasses; /* # of records in InnerClasses attr */
1015
1016 method_size_info clinit; /* memory used in clinit */
1017 method_size_info main; /* used everywhere else */
1018 } class_size_info;
1019
1020 /*
1021 * Functions defined in libjava.so to perform string conversions.
1022 *
1023 */
1024
1025 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1026
1027 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1028
1029 /* This is the function defined in libjava.so that performs class
1030 * format checks. This functions fills in size information about
1031 * the class file and returns:
1032 *
1033 * 0: good
1034 * -1: out of memory
1035 * -2: bad format
1036 * -3: unsupported version
1037 * -4: bad class name
1038 */
1039
1040 typedef jint (*check_format_fn_t)(char *class_name,
1041 unsigned char *data,
1042 unsigned int data_size,
1043 class_size_info *class_size,
1044 char *message_buffer,
1045 jint buffer_length,
1046 jboolean measure_only,
1047 jboolean check_relaxed);
1048
1049 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1050 JVM_ACC_FINAL | \
1051 JVM_ACC_SUPER | \
1052 JVM_ACC_INTERFACE | \
1053 JVM_ACC_ABSTRACT | \
1054 JVM_ACC_ANNOTATION | \
1055 JVM_ACC_ENUM | \
1056 JVM_ACC_SYNTHETIC)
1057
1058 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1059 JVM_ACC_PRIVATE | \
1060 JVM_ACC_PROTECTED | \
1061 JVM_ACC_STATIC | \
1062 JVM_ACC_FINAL | \
1063 JVM_ACC_VOLATILE | \
1064 JVM_ACC_TRANSIENT | \
1065 JVM_ACC_ENUM | \
1066 JVM_ACC_SYNTHETIC)
1067
1068 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1069 JVM_ACC_PRIVATE | \
1070 JVM_ACC_PROTECTED | \
1071 JVM_ACC_STATIC | \
1072 JVM_ACC_FINAL | \
1073 JVM_ACC_SYNCHRONIZED | \
1074 JVM_ACC_BRIDGE | \
1075 JVM_ACC_VARARGS | \
1076 JVM_ACC_NATIVE | \
1077 JVM_ACC_ABSTRACT | \
1078 JVM_ACC_STRICT | \
1079 JVM_ACC_SYNTHETIC)
1080
1081 /*
1082 * This is the function defined in libjava.so to perform path
1083 * canonicalization. VM call this function before opening jar files
1084 * to load system classes.
1085 *
1086 */
1087
1088 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1089
1090 /*************************************************************************
1091 PART 3: I/O and Network Support
1092 ************************************************************************/
1093
1094 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1095 * when there is any kind of error. The caller can then use the
1096 * platform specific support (e.g., errno) to get the detailed
1097 * error info. The JVM_GetLastErrorString procedure may also be used
1098 * to obtain a descriptive error string.
1099 */
1100 #define JVM_IO_ERR (-1)
1101
1102 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1103 * operation has been disrupted by Thread.interrupt. There are a
1104 * number of technical difficulties related to interruptible IO that
1105 * need to be solved. For example, most existing programs do not handle
1106 * InterruptedIOExceptions specially, they simply treat those as any
1107 * IOExceptions, which typically indicate fatal errors.
1108 *
1109 * There are also two modes of operation for interruptible IO. In the
1110 * resumption mode, an interrupted IO operation is guaranteed not to
1111 * have any side-effects, and can be restarted. In the termination mode,
1112 * an interrupted IO operation corrupts the underlying IO stream, so
1113 * that the only reasonable operation on an interrupted stream is to
1114 * close that stream. The resumption mode seems to be impossible to
1115 * implement on Win32 and Solaris. Implementing the termination mode is
1116 * easier, but it's not clear that's the right semantics.
1117 *
1118 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1119 * using a compile-time flag on Solaris. Third-party JVM ports do not
1120 * need to implement interruptible IO.
1121 */
1122 #define JVM_IO_INTR (-2)
1123
1124 /* Write a string into the given buffer, in the platform's local encoding,
1125 * that describes the most recent system-level error to occur in this thread.
1126 * Return the length of the string or zero if no error occurred.
1127 */
1128 JNIEXPORT jint JNICALL
1129 JVM_GetLastErrorString(char *buf, int len);
1130
1131 /*
1132 * Convert a pathname into native format. This function does syntactic
1133 * cleanup, such as removing redundant separator characters. It modifies
1134 * the given pathname string in place.
1135 */
1136 JNIEXPORT char * JNICALL
1137 JVM_NativePath(char *);
1138
1139 /*
1140 * JVM I/O error codes
1141 */
1142 #define JVM_EEXIST -100
1143
1144 /*
1145 * Open a file descriptor. This function returns a negative error code
1146 * on error, and a non-negative integer that is the file descriptor on
1147 * success.
1148 */
1149 JNIEXPORT jint JNICALL
1150 JVM_Open(const char *fname, jint flags, jint mode);
1151
1152 /*
1153 * Close a file descriptor. This function returns -1 on error, and 0
1154 * on success.
1155 *
1156 * fd the file descriptor to close.
1157 */
1158 JNIEXPORT jint JNICALL
1159 JVM_Close(jint fd);
1160
1161 /*
1162 * Read data from a file decriptor into a char array.
1163 *
1164 * fd the file descriptor to read from.
1165 * buf the buffer where to put the read data.
1166 * nbytes the number of bytes to read.
1167 *
1168 * This function returns -1 on error, and 0 on success.
1169 */
1170 JNIEXPORT jint JNICALL
1171 JVM_Read(jint fd, char *buf, jint nbytes);
1172
1173 /*
1174 * Write data from a char array to a file decriptor.
1175 *
1176 * fd the file descriptor to read from.
1177 * buf the buffer from which to fetch the data.
1178 * nbytes the number of bytes to write.
1179 *
1180 * This function returns -1 on error, and 0 on success.
1181 */
1182 JNIEXPORT jint JNICALL
1183 JVM_Write(jint fd, char *buf, jint nbytes);
1184
1185 /*
1186 * Returns the number of bytes available for reading from a given file
1187 * descriptor
1188 */
1189 JNIEXPORT jint JNICALL
1190 JVM_Available(jint fd, jlong *pbytes);
1191
1192 /*
1193 * Move the file descriptor pointer from whence by offset.
1194 *
1195 * fd the file descriptor to move.
1196 * offset the number of bytes to move it by.
1197 * whence the start from where to move it.
1198 *
1199 * This function returns the resulting pointer location.
1200 */
1201 JNIEXPORT jlong JNICALL
1202 JVM_Lseek(jint fd, jlong offset, jint whence);
1203
1204 /*
1205 * Set the length of the file associated with the given descriptor to the given
1206 * length. If the new length is longer than the current length then the file
1207 * is extended; the contents of the extended portion are not defined. The
1208 * value of the file pointer is undefined after this procedure returns.
1209 */
1210 JNIEXPORT jint JNICALL
1211 JVM_SetLength(jint fd, jlong length);
1212
1213 /*
1214 * Synchronize the file descriptor's in memory state with that of the
1215 * physical device. Return of -1 is an error, 0 is OK.
1216 */
1217 JNIEXPORT jint JNICALL
1218 JVM_Sync(jint fd);
1219
1220 /*
1221 * Networking library support
1222 */
1223
1224 JNIEXPORT jint JNICALL
1225 JVM_InitializeSocketLibrary(void);
1226
1227 struct sockaddr;
1228
1229 JNIEXPORT jint JNICALL
1230 JVM_Socket(jint domain, jint type, jint protocol);
1231
1232 JNIEXPORT jint JNICALL
1233 JVM_SocketClose(jint fd);
1234
1235 JNIEXPORT jint JNICALL
1236 JVM_SocketShutdown(jint fd, jint howto);
1237
1238 JNIEXPORT jint JNICALL
1239 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1240
1241 JNIEXPORT jint JNICALL
1242 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1243
1244 JNIEXPORT jint JNICALL
1245 JVM_Timeout(int fd, long timeout);
1246
1247 JNIEXPORT jint JNICALL
1248 JVM_Listen(jint fd, jint count);
1249
1250 JNIEXPORT jint JNICALL
1251 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1252
1253 JNIEXPORT jint JNICALL
1254 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1255
1256 JNIEXPORT jint JNICALL
1257 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1258
1259 JNIEXPORT jint JNICALL
1260 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1261 int flags, struct sockaddr *from, int *fromlen);
1262
1263 JNIEXPORT jint JNICALL
1264 JVM_SendTo(jint fd, char *buf, int len,
1265 int flags, struct sockaddr *to, int tolen);
1266
1267 JNIEXPORT jint JNICALL
1268 JVM_SocketAvailable(jint fd, jint *result);
1269
1270
1271 JNIEXPORT jint JNICALL
1272 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1273
1274 JNIEXPORT jint JNICALL
1275 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1276
1277 JNIEXPORT jint JNICALL
1278 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1279
1280 JNIEXPORT int JNICALL
1281 JVM_GetHostName(char* name, int namelen);
1282
1283 /*
1284 * The standard printing functions supported by the Java VM. (Should they
1285 * be renamed to JVM_* in the future?
1286 */
1287
1288 /*
1289 * BE CAREFUL! The following functions do not implement the
1290 * full feature set of standard C printf formats.
1291 */
1292 int
1293 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1294
1295 int
1296 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1297
1298 int
1299 jio_fprintf(FILE *, const char *fmt, ...);
1300
1301 int
1302 jio_vfprintf(FILE *, const char *fmt, va_list args);
1303
1304
1305 JNIEXPORT void * JNICALL
1306 JVM_RawMonitorCreate(void);
1307
1308 JNIEXPORT void JNICALL
1309 JVM_RawMonitorDestroy(void *mon);
1310
1311 JNIEXPORT jint JNICALL
1312 JVM_RawMonitorEnter(void *mon);
1313
1314 JNIEXPORT void JNICALL
1315 JVM_RawMonitorExit(void *mon);
1316
1317 /*
1318 * java.lang.management support
1319 */
1320 JNIEXPORT void* JNICALL
1321 JVM_GetManagement(jint version);
1322
1323 /*
1324 * com.sun.tools.attach.VirtualMachine support
1325 *
1326 * Initialize the agent properties with the properties maintained in the VM.
1327 */
1328 JNIEXPORT jobject JNICALL
1329 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1330
1331 JNIEXPORT jstring JNICALL
1332 JVM_GetTemporaryDirectory(JNIEnv *env);
1333
1334 /* Generics reflection support.
1335 *
1336 * Returns information about the given class's EnclosingMethod
1337 * attribute, if present, or null if the class had no enclosing
1338 * method.
1339 *
1340 * If non-null, the returned array contains three elements. Element 0
1341 * is the java.lang.Class of which the enclosing method is a member,
1342 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1343 * method's name and descriptor, respectively.
1344 */
1345 JNIEXPORT jobjectArray JNICALL
1346 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1347
1348 /*
1349 * Java thread state support
1350 */
1351 enum {
1352 JAVA_THREAD_STATE_NEW = 0,
1353 JAVA_THREAD_STATE_RUNNABLE = 1,
1354 JAVA_THREAD_STATE_BLOCKED = 2,
1355 JAVA_THREAD_STATE_WAITING = 3,
1356 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1357 JAVA_THREAD_STATE_TERMINATED = 5,
1358 JAVA_THREAD_STATE_COUNT = 6
1359 };
1360
1361 /*
1362 * Returns an array of the threadStatus values representing the
1363 * given Java thread state. Returns NULL if the VM version is
1364 * incompatible with the JDK or doesn't support the given
1365 * Java thread state.
1366 */
1367 JNIEXPORT jintArray JNICALL
1368 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1369
1370 /*
1371 * Returns an array of the substate names representing the
1372 * given Java thread state. Returns NULL if the VM version is
1373 * incompatible with the JDK or the VM doesn't support
1374 * the given Java thread state.
1375 * values must be the jintArray returned from JVM_GetThreadStateValues
1376 * and javaThreadState.
1377 */
1378 JNIEXPORT jobjectArray JNICALL
1379 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1380
1381 /* =========================================================================
1382 * The following defines a private JVM interface that the JDK can query
1383 * for the JVM version and capabilities. sun.misc.Version defines
1384 * the methods for getting the VM version and its capabilities.
1385 *
1386 * When a new bit is added, the following should be updated to provide
1387 * access to the new capability:
1388 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1389 * SDK: Version class
1390 *
1391 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1392 * JVM to query for the JDK version and capabilities.
1393 *
1394 * When a new bit is added, the following should be updated to provide
1395 * access to the new capability:
1396 * HS: JDK_Version class
1397 * SDK: JDK_GetVersionInfo0
1398 *
1399 * ==========================================================================
1400 */
1401 typedef struct {
1402 /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */
1403 unsigned int jvm_version; /* Consists of major, minor, micro (n.n.n) */
1404 /* and build number (xx) */
1405 unsigned int update_version : 8; /* Update release version (uu) */
1406 unsigned int special_update_version : 8; /* Special update release version (c)*/
1407 unsigned int reserved1 : 16;
1408 unsigned int reserved2;
1409
1410 /* The following bits represents JVM supports that JDK has dependency on.
1411 * JDK can use these bits to determine which JVM version
1412 * and support it has to maintain runtime compatibility.
1413 *
1414 * When a new bit is added in a minor or update release, make sure
1415 * the new bit is also added in the main/baseline.
1416 */
1417 unsigned int is_attach_supported : 1;
1418 unsigned int : 31;
1419 unsigned int : 32;
1420 unsigned int : 32;
1421 } jvm_version_info;
1422
1423 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1424 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1425 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1426
1427 /* Build number is available only for RE builds.
1428 * It will be zero for internal builds.
1429 */
1430 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1431
1432 JNIEXPORT void JNICALL
1433 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1434
1435 typedef struct {
1436 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1437 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1438 /* and build number (xx) */
1439 unsigned int update_version : 8; /* Update release version (uu) */
1440 unsigned int special_update_version : 8; /* Special update release version (c)*/
1441 unsigned int reserved1 : 16;
1442 unsigned int reserved2;
1443
1444 /* The following bits represents new JDK supports that VM has dependency on.
1445 * VM implementation can use these bits to determine which JDK version
1446 * and support it has to maintain runtime compatibility.
1447 *
1448 * When a new bit is added in a minor or update release, make sure
1449 * the new bit is also added in the main/baseline.
1450 */
1451 unsigned int thread_park_blocker : 1;
1452 unsigned int post_vm_init_hook_enabled : 1;
1453 unsigned int pending_list_uses_discovered_field : 1;
1454 unsigned int : 29;
1455 unsigned int : 32;
1456 unsigned int : 32;
1457 } jdk_version_info;
1458
1459 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1460 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1461 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1462
1463 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1464 * It will be zero for internal builds.
1465 */
1466 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1467
1468 /*
1469 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1470 * that is dynamically looked up by JVM.
1471 */
1472 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1473
1474 /*
1475 * This structure is used by the launcher to get the default thread
1476 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1477 * version of 1.1. As it is not supported otherwise, it has been removed
1478 * from jni.h
1479 */
1480 typedef struct JDK1_1InitArgs {
1481 jint version;
1482
1483 char **properties;
1484 jint checkSource;
1485 jint nativeStackSize;
1486 jint javaStackSize;
1487 jint minHeapSize;
1488 jint maxHeapSize;
1489 jint verifyMode;
1490 char *classpath;
1491
1492 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1493 void (JNICALL *exit)(jint code);
1494 void (JNICALL *abort)(void);
1495
1496 jint enableClassGC;
1497 jint enableVerboseGC;
1498 jint disableAsyncGC;
1499 jint verbose;
1500 jboolean debugging;
1501 jint debugPort;
1502 } JDK1_1InitArgs;
1503
1504
1505 #ifdef __cplusplus
1506 } /* extern "C" */
1507
1508 #endif /* __cplusplus */
1509
1510 #endif /* !_JAVASOFT_JVM_H_ */