1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #ifndef _JAVASOFT_JVM_H_
27 #define _JAVASOFT_JVM_H_
28
29 #include <sys/stat.h>
30
31 #include "jni.h"
32 #include "jvm_md.h"
33
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37
38 /*
39 * This file contains additional functions exported from the VM.
40 * These functions are complementary to the standard JNI support.
41 * There are three parts to this file:
42 *
43 * First, this file contains the VM-related functions needed by native
44 * libraries in the standard Java API. For example, the java.lang.Object
45 * class needs VM-level functions that wait for and notify monitors.
46 *
47 * Second, this file contains the functions and constant definitions
48 * needed by the byte code verifier and class file format checker.
49 * These functions allow the verifier and format checker to be written
50 * in a VM-independent way.
51 *
52 * Third, this file contains various I/O and nerwork operations needed
53 * by the standard Java I/O and network APIs.
54 */
55
56 /*
57 * Bump the version number when either of the following happens:
58 *
59 * 1. There is a change in JVM_* functions.
60 *
61 * 2. There is a change in the contract between VM and Java classes.
62 * For example, if the VM relies on a new private field in Thread
63 * class.
64 */
65
66 #define JVM_INTERFACE_VERSION 4
67
68 JNIEXPORT jint JNICALL
69 JVM_GetInterfaceVersion(void);
70
71 /*************************************************************************
72 PART 1: Functions for Native Libraries
73 ************************************************************************/
74 /*
75 * java.lang.Object
76 */
77 JNIEXPORT jint JNICALL
78 JVM_IHashCode(JNIEnv *env, jobject obj);
79
80 JNIEXPORT void JNICALL
81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
82
83 JNIEXPORT void JNICALL
84 JVM_MonitorNotify(JNIEnv *env, jobject obj);
85
86 JNIEXPORT void JNICALL
87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
88
89 JNIEXPORT jobject JNICALL
90 JVM_Clone(JNIEnv *env, jobject obj);
91
92 /*
93 * java.lang.String
94 */
95 JNIEXPORT jstring JNICALL
96 JVM_InternString(JNIEnv *env, jstring str);
97
98 /*
99 * java.lang.System
100 */
101 JNIEXPORT jlong JNICALL
102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
103
104 JNIEXPORT jlong JNICALL
105 JVM_NanoTime(JNIEnv *env, jclass ignored);
106
107 JNIEXPORT void JNICALL
108 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
109 jobject dst, jint dst_pos, jint length);
110
111 JNIEXPORT jobject JNICALL
112 JVM_InitProperties(JNIEnv *env, jobject p);
113
114 /*
115 * java.io.File
116 */
117 JNIEXPORT void JNICALL
118 JVM_OnExit(void (*func)(void));
119
120 /*
121 * java.lang.Runtime
122 */
123 JNIEXPORT void JNICALL
124 JVM_Exit(jint code);
125
126 JNIEXPORT void JNICALL
127 JVM_Halt(jint code);
128
129 JNIEXPORT void JNICALL
130 JVM_GC(void);
131
132 /* Returns the number of real-time milliseconds that have elapsed since the
133 * least-recently-inspected heap object was last inspected by the garbage
134 * collector.
135 *
136 * For simple stop-the-world collectors this value is just the time
137 * since the most recent collection. For generational collectors it is the
138 * time since the oldest generation was most recently collected. Other
139 * collectors are free to return a pessimistic estimate of the elapsed time, or
140 * simply the time since the last full collection was performed.
141 *
142 * Note that in the presence of reference objects, a given object that is no
143 * longer strongly reachable may have to be inspected multiple times before it
144 * can be reclaimed.
145 */
146 JNIEXPORT jlong JNICALL
147 JVM_MaxObjectInspectionAge(void);
148
149 JNIEXPORT void JNICALL
150 JVM_TraceInstructions(jboolean on);
151
152 JNIEXPORT void JNICALL
153 JVM_TraceMethodCalls(jboolean on);
154
155 JNIEXPORT jlong JNICALL
156 JVM_TotalMemory(void);
157
158 JNIEXPORT jlong JNICALL
159 JVM_FreeMemory(void);
160
161 JNIEXPORT jlong JNICALL
162 JVM_MaxMemory(void);
163
164 JNIEXPORT jint JNICALL
165 JVM_ActiveProcessorCount(void);
166
167 JNIEXPORT void * JNICALL
168 JVM_LoadLibrary(const char *name);
169
170 JNIEXPORT void JNICALL
171 JVM_UnloadLibrary(void * handle);
172
173 JNIEXPORT void * JNICALL
174 JVM_FindLibraryEntry(void *handle, const char *name);
175
176 JNIEXPORT jboolean JNICALL
177 JVM_IsSupportedJNIVersion(jint version);
178
179 /*
180 * java.lang.Float and java.lang.Double
181 */
182 JNIEXPORT jboolean JNICALL
183 JVM_IsNaN(jdouble d);
184
185 /*
186 * java.lang.Throwable
187 */
188 JNIEXPORT void JNICALL
189 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
190
191 JNIEXPORT jint JNICALL
192 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
193
194 JNIEXPORT jobject JNICALL
195 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
196
197 /*
198 * java.lang.Compiler
199 */
200 JNIEXPORT void JNICALL
201 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
202
203 JNIEXPORT jboolean JNICALL
204 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
205
206 JNIEXPORT jboolean JNICALL
207 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
208
209 JNIEXPORT jboolean JNICALL
210 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
211
212 JNIEXPORT jobject JNICALL
213 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
214
215 JNIEXPORT void JNICALL
216 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
217
218 JNIEXPORT void JNICALL
219 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
220
221 /*
222 * java.lang.Thread
223 */
224 JNIEXPORT void JNICALL
225 JVM_StartThread(JNIEnv *env, jobject thread);
226
227 JNIEXPORT void JNICALL
228 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
229
230 JNIEXPORT jboolean JNICALL
231 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
232
233 JNIEXPORT void JNICALL
234 JVM_SuspendThread(JNIEnv *env, jobject thread);
235
236 JNIEXPORT void JNICALL
237 JVM_ResumeThread(JNIEnv *env, jobject thread);
238
239 JNIEXPORT void JNICALL
240 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
241
242 JNIEXPORT void JNICALL
243 JVM_Yield(JNIEnv *env, jclass threadClass);
244
245 JNIEXPORT void JNICALL
246 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
247
248 JNIEXPORT jobject JNICALL
249 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
250
251 JNIEXPORT jint JNICALL
252 JVM_CountStackFrames(JNIEnv *env, jobject thread);
253
254 JNIEXPORT void JNICALL
255 JVM_Interrupt(JNIEnv *env, jobject thread);
256
257 JNIEXPORT jboolean JNICALL
258 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
259
260 JNIEXPORT jboolean JNICALL
261 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
262
263 JNIEXPORT void JNICALL
264 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
265
266 JNIEXPORT jobjectArray JNICALL
267 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
268
269 JNIEXPORT void JNICALL
270 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
271
272 /* getStackTrace() and getAllStackTraces() method */
273 JNIEXPORT jobjectArray JNICALL
274 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
275
276 /*
277 * java.lang.SecurityManager
278 */
279 JNIEXPORT jclass JNICALL
280 JVM_CurrentLoadedClass(JNIEnv *env);
281
282 JNIEXPORT jobject JNICALL
283 JVM_CurrentClassLoader(JNIEnv *env);
284
285 JNIEXPORT jobjectArray JNICALL
286 JVM_GetClassContext(JNIEnv *env);
287
288 JNIEXPORT jint JNICALL
289 JVM_ClassDepth(JNIEnv *env, jstring name);
290
291 JNIEXPORT jint JNICALL
292 JVM_ClassLoaderDepth(JNIEnv *env);
293
294 /*
295 * java.lang.Package
296 */
297 JNIEXPORT jstring JNICALL
298 JVM_GetSystemPackage(JNIEnv *env, jstring name);
299
300 JNIEXPORT jobjectArray JNICALL
301 JVM_GetSystemPackages(JNIEnv *env);
302
303 /*
304 * java.io.ObjectInputStream
305 */
306 JNIEXPORT jobject JNICALL
307 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
308 jclass initClass);
309
310 JNIEXPORT jobject JNICALL
311 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
312 jint length);
313
314 JNIEXPORT jobject JNICALL
315 JVM_LatestUserDefinedLoader(JNIEnv *env);
316
317 /*
318 * This function has been deprecated and should not be considered
319 * part of the specified JVM interface.
320 */
321 JNIEXPORT jclass JNICALL
322 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
323 jstring currClassName);
324
325 /*
326 * java.lang.reflect.Array
327 */
328 JNIEXPORT jint JNICALL
329 JVM_GetArrayLength(JNIEnv *env, jobject arr);
330
331 JNIEXPORT jobject JNICALL
332 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
333
334 JNIEXPORT jvalue JNICALL
335 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
336
337 JNIEXPORT void JNICALL
338 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
339
340 JNIEXPORT void JNICALL
341 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
342 unsigned char vCode);
343
344 JNIEXPORT jobject JNICALL
345 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
346
347 JNIEXPORT jobject JNICALL
348 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
349
350 /*
351 * java.lang.Class and java.lang.ClassLoader
352 */
353
354 #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 jobject JNICALL
430 JVM_GetClassLoader(JNIEnv *env, jclass cls);
431
432 JNIEXPORT jboolean JNICALL
433 JVM_IsInterface(JNIEnv *env, jclass cls);
434
435 JNIEXPORT jobjectArray JNICALL
436 JVM_GetClassSigners(JNIEnv *env, jclass cls);
437
438 JNIEXPORT void JNICALL
439 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
440
441 JNIEXPORT jobject JNICALL
442 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
443
444 JNIEXPORT jboolean JNICALL
445 JVM_IsArrayClass(JNIEnv *env, jclass cls);
446
447 JNIEXPORT jboolean JNICALL
448 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
449
450 JNIEXPORT jclass JNICALL
451 JVM_GetComponentType(JNIEnv *env, jclass cls);
452
453 JNIEXPORT jint JNICALL
454 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
455
456 JNIEXPORT jobjectArray JNICALL
457 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
458
459 JNIEXPORT jclass JNICALL
460 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
461
462 /* Generics support (JDK 1.5) */
463 JNIEXPORT jstring JNICALL
464 JVM_GetClassSignature(JNIEnv *env, jclass cls);
465
466 /* Annotations support (JDK 1.5) */
467 JNIEXPORT jbyteArray JNICALL
468 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
469
470 /* Type use annotations support (JDK 1.8) */
471
472 JNIEXPORT jbyteArray JNICALL
473 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
474
475 JNIEXPORT jbyteArray JNICALL
476 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
477
478 JNIEXPORT jbyteArray JNICALL
479 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
480
481 /*
482 * New (JDK 1.4) reflection implementation
483 */
484
485 JNIEXPORT jobjectArray JNICALL
486 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
487
488 JNIEXPORT jobjectArray JNICALL
489 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
490
491 JNIEXPORT jobjectArray JNICALL
492 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
493
494 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
495 This returns the access flags for the class as specified in the
496 class file rather than searching the InnerClasses attribute (if
497 present) to find the source-level access flags. Only the values of
498 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
499 valid. */
500 JNIEXPORT jint JNICALL
501 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
502
503 /* The following two reflection routines are still needed due to startup time issues */
504 /*
505 * java.lang.reflect.Method
506 */
507 JNIEXPORT jobject JNICALL
508 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
509
510 /*
511 * java.lang.reflect.Constructor
512 */
513 JNIEXPORT jobject JNICALL
514 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
515
516 /*
517 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
518 */
519
520 JNIEXPORT jobject JNICALL
521 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
522
523 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
524 (JNIEnv *env, jobject unused, jobject jcpool);
525
526 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
527 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
528
529 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
530 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
531
532 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
533 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
534
535 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
536 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
537
538 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
539 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
540
541 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
542 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
543
544 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
545 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
546
547 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
548 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
549
550 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
551 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
552
553 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
554 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
555
556 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
557 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
558
559 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
560 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
561
562 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
563 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
564
565 /*
566 * Parameter reflection
567 */
568
569 JNIEXPORT jobjectArray JNICALL
570 JVM_GetMethodParameters(JNIEnv *env, jobject method);
571
572 /*
573 * java.security.*
574 */
575
576 JNIEXPORT jobject JNICALL
577 JVM_DoPrivileged(JNIEnv *env, jclass cls,
578 jobject action, jobject context, jboolean wrapException);
579
580 JNIEXPORT jobject JNICALL
581 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
582
583 JNIEXPORT jobject JNICALL
584 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
585
586 /*
587 * Signal support, used to implement the shutdown sequence. Every VM must
588 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
589 * (^C) and the latter for external termination (kill, system shutdown, etc.).
590 * Other platform-dependent signal values may also be supported.
591 */
592
593 JNIEXPORT void * JNICALL
594 JVM_RegisterSignal(jint sig, void *handler);
595
596 JNIEXPORT jboolean JNICALL
597 JVM_RaiseSignal(jint sig);
598
599 JNIEXPORT jint JNICALL
600 JVM_FindSignal(const char *name);
601
602 /*
603 * Retrieve the assertion directives for the specified class.
604 */
605 JNIEXPORT jboolean JNICALL
606 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
607
608 /*
609 * Retrieve the assertion directives from the VM.
610 */
611 JNIEXPORT jobject JNICALL
612 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
613
614 /*
615 * java.util.concurrent.atomic.AtomicLong
616 */
617 JNIEXPORT jboolean JNICALL
618 JVM_SupportsCX8(void);
619
620 /*
621 * com.sun.dtrace.jsdt support
622 */
623
624 #define JVM_TRACING_DTRACE_VERSION 1
625
626 /*
627 * Structure to pass one probe description to JVM
628 */
629 typedef struct {
630 jmethodID method;
631 jstring function;
632 jstring name;
633 void* reserved[4]; // for future use
634 } JVM_DTraceProbe;
635
636 /**
637 * Encapsulates the stability ratings for a DTrace provider field
638 */
639 typedef struct {
640 jint nameStability;
641 jint dataStability;
642 jint dependencyClass;
643 } JVM_DTraceInterfaceAttributes;
644
645 /*
646 * Structure to pass one provider description to JVM
647 */
648 typedef struct {
649 jstring name;
650 JVM_DTraceProbe* probes;
651 jint probe_count;
652 JVM_DTraceInterfaceAttributes providerAttributes;
653 JVM_DTraceInterfaceAttributes moduleAttributes;
654 JVM_DTraceInterfaceAttributes functionAttributes;
655 JVM_DTraceInterfaceAttributes nameAttributes;
656 JVM_DTraceInterfaceAttributes argsAttributes;
657 void* reserved[4]; // for future use
658 } JVM_DTraceProvider;
659
660 /*
661 * Get the version number the JVM was built with
662 */
663 JNIEXPORT jint JNICALL
664 JVM_DTraceGetVersion(JNIEnv* env);
665
666 /*
667 * Register new probe with given signature, return global handle
668 *
669 * The version passed in is the version that the library code was
670 * built with.
671 */
672 JNIEXPORT jlong JNICALL
673 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
674 jint providers_count, JVM_DTraceProvider* providers);
675
676 /*
677 * Check JSDT probe
678 */
679 JNIEXPORT jboolean JNICALL
680 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
681
682 /*
683 * Destroy custom DOF
684 */
685 JNIEXPORT void JNICALL
686 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
687
688 /*
689 * Check to see if DTrace is supported by OS
690 */
691 JNIEXPORT jboolean JNICALL
692 JVM_DTraceIsSupported(JNIEnv* env);
693
694 /*************************************************************************
695 PART 2: Support for the Verifier and Class File Format Checker
696 ************************************************************************/
697 /*
698 * Return the class name in UTF format. The result is valid
699 * until JVM_ReleaseUTf is called.
700 *
701 * The caller must treat the string as a constant and not modify it
702 * in any way.
703 */
704 JNIEXPORT const char * JNICALL
705 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
706
707 /*
708 * Returns the constant pool types in the buffer provided by "types."
709 */
710 JNIEXPORT void JNICALL
711 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
712
713 /*
714 * Returns the number of Constant Pool entries.
715 */
716 JNIEXPORT jint JNICALL
717 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
718
719 /*
720 * Returns the number of *declared* fields or methods.
721 */
722 JNIEXPORT jint JNICALL
723 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
724
725 JNIEXPORT jint JNICALL
726 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
727
728 /*
729 * Returns the CP indexes of exceptions raised by a given method.
730 * Places the result in the given buffer.
731 *
732 * The method is identified by method_index.
733 */
734 JNIEXPORT void JNICALL
735 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
736 unsigned short *exceptions);
737 /*
738 * Returns the number of exceptions raised by a given method.
739 * The method is identified by method_index.
740 */
741 JNIEXPORT jint JNICALL
742 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
743
744 /*
745 * Returns the byte code sequence of a given method.
746 * Places the result in the given buffer.
747 *
748 * The method is identified by method_index.
749 */
750 JNIEXPORT void JNICALL
751 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
752 unsigned char *code);
753
754 /*
755 * Returns the length of the byte code sequence of a given method.
756 * The method is identified by method_index.
757 */
758 JNIEXPORT jint JNICALL
759 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
760
761 /*
762 * A structure used to a capture exception table entry in a Java method.
763 */
764 typedef struct {
765 jint start_pc;
766 jint end_pc;
767 jint handler_pc;
768 jint catchType;
769 } JVM_ExceptionTableEntryType;
770
771 /*
772 * Returns the exception table entry at entry_index of a given method.
773 * Places the result in the given buffer.
774 *
775 * The method is identified by method_index.
776 */
777 JNIEXPORT void JNICALL
778 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
779 jint entry_index,
780 JVM_ExceptionTableEntryType *entry);
781
782 /*
783 * Returns the length of the exception table of a given method.
784 * The method is identified by method_index.
785 */
786 JNIEXPORT jint JNICALL
787 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
788
789 /*
790 * Returns the modifiers of a given field.
791 * The field is identified by field_index.
792 */
793 JNIEXPORT jint JNICALL
794 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
795
796 /*
797 * Returns the modifiers of a given method.
798 * The method is identified by method_index.
799 */
800 JNIEXPORT jint JNICALL
801 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
802
803 /*
804 * Returns the number of local variables of a given method.
805 * The method is identified by method_index.
806 */
807 JNIEXPORT jint JNICALL
808 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
809
810 /*
811 * Returns the number of arguments (including this pointer) of a given method.
812 * The method is identified by method_index.
813 */
814 JNIEXPORT jint JNICALL
815 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
816
817 /*
818 * Returns the maximum amount of stack (in words) used by a given method.
819 * The method is identified by method_index.
820 */
821 JNIEXPORT jint JNICALL
822 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
823
824 /*
825 * Is a given method a constructor.
826 * The method is identified by method_index.
827 */
828 JNIEXPORT jboolean JNICALL
829 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
830
831 /*
832 * Is the given method generated by the VM.
833 * The method is identified by method_index.
834 */
835 JNIEXPORT jboolean JNICALL
836 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
837
838 /*
839 * Returns the name of a given method in UTF format.
840 * The result remains valid until JVM_ReleaseUTF is called.
841 *
842 * The caller must treat the string as a constant and not modify it
843 * in any way.
844 */
845 JNIEXPORT const char * JNICALL
846 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
847
848 /*
849 * Returns the signature of a given method in UTF format.
850 * The result remains valid until JVM_ReleaseUTF is called.
851 *
852 * The caller must treat the string as a constant and not modify it
853 * in any way.
854 */
855 JNIEXPORT const char * JNICALL
856 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
857
858 /*
859 * Returns the name of the field referred to at a given constant pool
860 * index.
861 *
862 * The result is in UTF format and remains valid until JVM_ReleaseUTF
863 * is called.
864 *
865 * The caller must treat the string as a constant and not modify it
866 * in any way.
867 */
868 JNIEXPORT const char * JNICALL
869 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
870
871 /*
872 * Returns the name of the method referred to at a given constant pool
873 * index.
874 *
875 * The result is in UTF format and remains valid until JVM_ReleaseUTF
876 * is called.
877 *
878 * The caller must treat the string as a constant and not modify it
879 * in any way.
880 */
881 JNIEXPORT const char * JNICALL
882 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
883
884 /*
885 * Returns the signature of the method referred to at a given constant pool
886 * index.
887 *
888 * The result is in UTF format and remains valid until JVM_ReleaseUTF
889 * is called.
890 *
891 * The caller must treat the string as a constant and not modify it
892 * in any way.
893 */
894 JNIEXPORT const char * JNICALL
895 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
896
897 /*
898 * Returns the signature of the field referred to at a given constant pool
899 * index.
900 *
901 * The result is in UTF format and remains valid until JVM_ReleaseUTF
902 * is called.
903 *
904 * The caller must treat the string as a constant and not modify it
905 * in any way.
906 */
907 JNIEXPORT const char * JNICALL
908 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
909
910 /*
911 * Returns the class name referred to at a given constant pool index.
912 *
913 * The result is in UTF format and remains valid until JVM_ReleaseUTF
914 * is called.
915 *
916 * The caller must treat the string as a constant and not modify it
917 * in any way.
918 */
919 JNIEXPORT const char * JNICALL
920 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
921
922 /*
923 * Returns the class name referred to at a given constant pool index.
924 *
925 * The constant pool entry must refer to a CONSTANT_Fieldref.
926 *
927 * The result is in UTF format and remains valid until JVM_ReleaseUTF
928 * is called.
929 *
930 * The caller must treat the string as a constant and not modify it
931 * in any way.
932 */
933 JNIEXPORT const char * JNICALL
934 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
935
936 /*
937 * Returns the class name referred to at a given constant pool index.
938 *
939 * The constant pool entry must refer to CONSTANT_Methodref or
940 * CONSTANT_InterfaceMethodref.
941 *
942 * The result is in UTF format and remains valid until JVM_ReleaseUTF
943 * is called.
944 *
945 * The caller must treat the string as a constant and not modify it
946 * in any way.
947 */
948 JNIEXPORT const char * JNICALL
949 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
950
951 /*
952 * Returns the modifiers of a field in calledClass. The field is
953 * referred to in class cb at constant pool entry index.
954 *
955 * The caller must treat the string as a constant and not modify it
956 * in any way.
957 *
958 * Returns -1 if the field does not exist in calledClass.
959 */
960 JNIEXPORT jint JNICALL
961 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
962
963 /*
964 * Returns the modifiers of a method in calledClass. The method is
965 * referred to in class cb at constant pool entry index.
966 *
967 * Returns -1 if the method does not exist in calledClass.
968 */
969 JNIEXPORT jint JNICALL
970 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
971
972 /*
973 * Releases the UTF string obtained from the VM.
974 */
975 JNIEXPORT void JNICALL
976 JVM_ReleaseUTF(const char *utf);
977
978 /*
979 * Compare if two classes are in the same package.
980 */
981 JNIEXPORT jboolean JNICALL
982 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
983
984 /* Get classfile constants */
985 #include "classfile_constants.h"
986
987 /*
988 * A function defined by the byte-code verifier and called by the VM.
989 * This is not a function implemented in the VM.
990 *
991 * Returns JNI_FALSE if verification fails. A detailed error message
992 * will be places in msg_buf, whose length is specified by buf_len.
993 */
994 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
995 jclass cb,
996 char * msg_buf,
997 jint buf_len);
998
999
1000 /*
1001 * Support for a VM-independent class format checker.
1002 */
1003 typedef struct {
1004 unsigned long code; /* byte code */
1005 unsigned long excs; /* exceptions */
1006 unsigned long etab; /* catch table */
1007 unsigned long lnum; /* line number */
1008 unsigned long lvar; /* local vars */
1009 } method_size_info;
1010
1011 typedef struct {
1012 unsigned int constants; /* constant pool */
1013 unsigned int fields;
1014 unsigned int methods;
1015 unsigned int interfaces;
1016 unsigned int fields2; /* number of static 2-word fields */
1017 unsigned int innerclasses; /* # of records in InnerClasses attr */
1018
1019 method_size_info clinit; /* memory used in clinit */
1020 method_size_info main; /* used everywhere else */
1021 } class_size_info;
1022
1023 /*
1024 * Functions defined in libjava.so to perform string conversions.
1025 *
1026 */
1027
1028 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1029
1030 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1031
1032 /* This is the function defined in libjava.so that performs class
1033 * format checks. This functions fills in size information about
1034 * the class file and returns:
1035 *
1036 * 0: good
1037 * -1: out of memory
1038 * -2: bad format
1039 * -3: unsupported version
1040 * -4: bad class name
1041 */
1042
1043 typedef jint (*check_format_fn_t)(char *class_name,
1044 unsigned char *data,
1045 unsigned int data_size,
1046 class_size_info *class_size,
1047 char *message_buffer,
1048 jint buffer_length,
1049 jboolean measure_only,
1050 jboolean check_relaxed);
1051
1052 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1053 JVM_ACC_FINAL | \
1054 JVM_ACC_SUPER | \
1055 JVM_ACC_INTERFACE | \
1056 JVM_ACC_ABSTRACT | \
1057 JVM_ACC_ANNOTATION | \
1058 JVM_ACC_ENUM | \
1059 JVM_ACC_SYNTHETIC)
1060
1061 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1062 JVM_ACC_PRIVATE | \
1063 JVM_ACC_PROTECTED | \
1064 JVM_ACC_STATIC | \
1065 JVM_ACC_FINAL | \
1066 JVM_ACC_VOLATILE | \
1067 JVM_ACC_TRANSIENT | \
1068 JVM_ACC_ENUM | \
1069 JVM_ACC_SYNTHETIC)
1070
1071 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1072 JVM_ACC_PRIVATE | \
1073 JVM_ACC_PROTECTED | \
1074 JVM_ACC_STATIC | \
1075 JVM_ACC_FINAL | \
1076 JVM_ACC_SYNCHRONIZED | \
1077 JVM_ACC_BRIDGE | \
1078 JVM_ACC_VARARGS | \
1079 JVM_ACC_NATIVE | \
1080 JVM_ACC_ABSTRACT | \
1081 JVM_ACC_STRICT | \
1082 JVM_ACC_SYNTHETIC)
1083
1084 /*
1085 * This is the function defined in libjava.so to perform path
1086 * canonicalization. VM call this function before opening jar files
1087 * to load system classes.
1088 *
1089 */
1090
1091 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1092
1093 /*************************************************************************
1094 PART 3: I/O and Network Support
1095 ************************************************************************/
1096
1097 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1098 * when there is any kind of error. The caller can then use the
1099 * platform specific support (e.g., errno) to get the detailed
1100 * error info. The JVM_GetLastErrorString procedure may also be used
1101 * to obtain a descriptive error string.
1102 */
1103 #define JVM_IO_ERR (-1)
1104
1105 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1106 * operation has been disrupted by Thread.interrupt. There are a
1107 * number of technical difficulties related to interruptible IO that
1108 * need to be solved. For example, most existing programs do not handle
1109 * InterruptedIOExceptions specially, they simply treat those as any
1110 * IOExceptions, which typically indicate fatal errors.
1111 *
1112 * There are also two modes of operation for interruptible IO. In the
1113 * resumption mode, an interrupted IO operation is guaranteed not to
1114 * have any side-effects, and can be restarted. In the termination mode,
1115 * an interrupted IO operation corrupts the underlying IO stream, so
1116 * that the only reasonable operation on an interrupted stream is to
1117 * close that stream. The resumption mode seems to be impossible to
1118 * implement on Win32 and Solaris. Implementing the termination mode is
1119 * easier, but it's not clear that's the right semantics.
1120 *
1121 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1122 * using a compile-time flag on Solaris. Third-party JVM ports do not
1123 * need to implement interruptible IO.
1124 */
1125 #define JVM_IO_INTR (-2)
1126
1127 /* Write a string into the given buffer, in the platform's local encoding,
1128 * that describes the most recent system-level error to occur in this thread.
1129 * Return the length of the string or zero if no error occurred.
1130 */
1131 JNIEXPORT jint JNICALL
1132 JVM_GetLastErrorString(char *buf, int len);
1133
1134 /*
1135 * Convert a pathname into native format. This function does syntactic
1136 * cleanup, such as removing redundant separator characters. It modifies
1137 * the given pathname string in place.
1138 */
1139 JNIEXPORT char * JNICALL
1140 JVM_NativePath(char *);
1141
1142 /*
1143 * JVM I/O error codes
1144 */
1145 #define JVM_EEXIST -100
1146
1147 /*
1148 * Open a file descriptor. This function returns a negative error code
1149 * on error, and a non-negative integer that is the file descriptor on
1150 * success.
1151 */
1152 JNIEXPORT jint JNICALL
1153 JVM_Open(const char *fname, jint flags, jint mode);
1154
1155 /*
1156 * Close a file descriptor. This function returns -1 on error, and 0
1157 * on success.
1158 *
1159 * fd the file descriptor to close.
1160 */
1161 JNIEXPORT jint JNICALL
1162 JVM_Close(jint fd);
1163
1164 /*
1165 * Read data from a file decriptor into a char array.
1166 *
1167 * fd the file descriptor to read from.
1168 * buf the buffer where to put the read data.
1169 * nbytes the number of bytes to read.
1170 *
1171 * This function returns -1 on error, and 0 on success.
1172 */
1173 JNIEXPORT jint JNICALL
1174 JVM_Read(jint fd, char *buf, jint nbytes);
1175
1176 /*
1177 * Write data from a char array to a file decriptor.
1178 *
1179 * fd the file descriptor to read from.
1180 * buf the buffer from which to fetch the data.
1181 * nbytes the number of bytes to write.
1182 *
1183 * This function returns -1 on error, and 0 on success.
1184 */
1185 JNIEXPORT jint JNICALL
1186 JVM_Write(jint fd, char *buf, jint nbytes);
1187
1188 /*
1189 * Returns the number of bytes available for reading from a given file
1190 * descriptor
1191 */
1192 JNIEXPORT jint JNICALL
1193 JVM_Available(jint fd, jlong *pbytes);
1194
1195 /*
1196 * Move the file descriptor pointer from whence by offset.
1197 *
1198 * fd the file descriptor to move.
1199 * offset the number of bytes to move it by.
1200 * whence the start from where to move it.
1201 *
1202 * This function returns the resulting pointer location.
1203 */
1204 JNIEXPORT jlong JNICALL
1205 JVM_Lseek(jint fd, jlong offset, jint whence);
1206
1207 /*
1208 * Set the length of the file associated with the given descriptor to the given
1209 * length. If the new length is longer than the current length then the file
1210 * is extended; the contents of the extended portion are not defined. The
1211 * value of the file pointer is undefined after this procedure returns.
1212 */
1213 JNIEXPORT jint JNICALL
1214 JVM_SetLength(jint fd, jlong length);
1215
1216 /*
1217 * Synchronize the file descriptor's in memory state with that of the
1218 * physical device. Return of -1 is an error, 0 is OK.
1219 */
1220 JNIEXPORT jint JNICALL
1221 JVM_Sync(jint fd);
1222
1223 /*
1224 * Networking library support
1225 */
1226
1227 JNIEXPORT jint JNICALL
1228 JVM_InitializeSocketLibrary(void);
1229
1230 struct sockaddr;
1231
1232 JNIEXPORT jint JNICALL
1233 JVM_Socket(jint domain, jint type, jint protocol);
1234
1235 JNIEXPORT jint JNICALL
1236 JVM_SocketClose(jint fd);
1237
1238 JNIEXPORT jint JNICALL
1239 JVM_SocketShutdown(jint fd, jint howto);
1240
1241 JNIEXPORT jint JNICALL
1242 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1243
1244 JNIEXPORT jint JNICALL
1245 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1246
1247 JNIEXPORT jint JNICALL
1248 JVM_Timeout(int fd, long timeout);
1249
1250 JNIEXPORT jint JNICALL
1251 JVM_Listen(jint fd, jint count);
1252
1253 JNIEXPORT jint JNICALL
1254 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1255
1256 JNIEXPORT jint JNICALL
1257 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1258
1259 JNIEXPORT jint JNICALL
1260 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1261
1262 JNIEXPORT jint JNICALL
1263 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1264 int flags, struct sockaddr *from, int *fromlen);
1265
1266 JNIEXPORT jint JNICALL
1267 JVM_SendTo(jint fd, char *buf, int len,
1268 int flags, struct sockaddr *to, int tolen);
1269
1270 JNIEXPORT jint JNICALL
1271 JVM_SocketAvailable(jint fd, jint *result);
1272
1273
1274 JNIEXPORT jint JNICALL
1275 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1276
1277 JNIEXPORT jint JNICALL
1278 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1279
1280 JNIEXPORT jint JNICALL
1281 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1282
1283 JNIEXPORT int JNICALL
1284 JVM_GetHostName(char* name, int namelen);
1285
1286 /*
1287 * The standard printing functions supported by the Java VM. (Should they
1288 * be renamed to JVM_* in the future?
1289 */
1290
1291 /*
1292 * BE CAREFUL! The following functions do not implement the
1293 * full feature set of standard C printf formats.
1294 */
1295 int
1296 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1297
1298 int
1299 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1300
1301 int
1302 jio_fprintf(FILE *, const char *fmt, ...);
1303
1304 int
1305 jio_vfprintf(FILE *, const char *fmt, va_list args);
1306
1307
1308 JNIEXPORT void * JNICALL
1309 JVM_RawMonitorCreate(void);
1310
1311 JNIEXPORT void JNICALL
1312 JVM_RawMonitorDestroy(void *mon);
1313
1314 JNIEXPORT jint JNICALL
1315 JVM_RawMonitorEnter(void *mon);
1316
1317 JNIEXPORT void JNICALL
1318 JVM_RawMonitorExit(void *mon);
1319
1320 /*
1321 * java.lang.management support
1322 */
1323 JNIEXPORT void* JNICALL
1324 JVM_GetManagement(jint version);
1325
1326 /*
1327 * com.sun.tools.attach.VirtualMachine support
1328 *
1329 * Initialize the agent properties with the properties maintained in the VM.
1330 */
1331 JNIEXPORT jobject JNICALL
1332 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1333
1334 JNIEXPORT jstring JNICALL
1335 JVM_GetTemporaryDirectory(JNIEnv *env);
1336
1337 /* Generics reflection support.
1338 *
1339 * Returns information about the given class's EnclosingMethod
1340 * attribute, if present, or null if the class had no enclosing
1341 * method.
1342 *
1343 * If non-null, the returned array contains three elements. Element 0
1344 * is the java.lang.Class of which the enclosing method is a member,
1345 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1346 * method's name and descriptor, respectively.
1347 */
1348 JNIEXPORT jobjectArray JNICALL
1349 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1350
1351 /*
1352 * Java thread state support
1353 */
1354 enum {
1355 JAVA_THREAD_STATE_NEW = 0,
1356 JAVA_THREAD_STATE_RUNNABLE = 1,
1357 JAVA_THREAD_STATE_BLOCKED = 2,
1358 JAVA_THREAD_STATE_WAITING = 3,
1359 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1360 JAVA_THREAD_STATE_TERMINATED = 5,
1361 JAVA_THREAD_STATE_COUNT = 6
1362 };
1363
1364 /*
1365 * Returns an array of the threadStatus values representing the
1366 * given Java thread state. Returns NULL if the VM version is
1367 * incompatible with the JDK or doesn't support the given
1368 * Java thread state.
1369 */
1370 JNIEXPORT jintArray JNICALL
1371 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1372
1373 /*
1374 * Returns an array of the substate names representing the
1375 * given Java thread state. Returns NULL if the VM version is
1376 * incompatible with the JDK or the VM doesn't support
1377 * the given Java thread state.
1378 * values must be the jintArray returned from JVM_GetThreadStateValues
1379 * and javaThreadState.
1380 */
1381 JNIEXPORT jobjectArray JNICALL
1382 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1383
1384 /* =========================================================================
1385 * The following defines a private JVM interface that the JDK can query
1386 * for the JVM version and capabilities. sun.misc.Version defines
1387 * the methods for getting the VM version and its capabilities.
1388 *
1389 * When a new bit is added, the following should be updated to provide
1390 * access to the new capability:
1391 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1392 * SDK: Version class
1393 *
1394 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1395 * JVM to query for the JDK version and capabilities.
1396 *
1397 * When a new bit is added, the following should be updated to provide
1398 * access to the new capability:
1399 * HS: JDK_Version class
1400 * SDK: JDK_GetVersionInfo0
1401 *
1402 * ==========================================================================
1403 */
1404 typedef struct {
1405 /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */
1406 unsigned int jvm_version; /* Consists of major, minor, micro (n.n.n) */
1407 /* and build number (xx) */
1408 unsigned int update_version : 8; /* Update release version (uu) */
1409 unsigned int special_update_version : 8; /* Special update release version (c)*/
1410 unsigned int reserved1 : 16;
1411 unsigned int reserved2;
1412
1413 /* The following bits represents JVM supports that JDK has dependency on.
1414 * JDK can use these bits to determine which JVM version
1415 * and support it has to maintain runtime compatibility.
1416 *
1417 * When a new bit is added in a minor or update release, make sure
1418 * the new bit is also added in the main/baseline.
1419 */
1420 unsigned int is_attach_supported : 1;
1421 unsigned int : 31;
1422 unsigned int : 32;
1423 unsigned int : 32;
1424 } jvm_version_info;
1425
1426 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1427 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1428 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1429
1430 /* Build number is available only for RE builds.
1431 * It will be zero for internal builds.
1432 */
1433 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1434
1435 JNIEXPORT void JNICALL
1436 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1437
1438 typedef struct {
1439 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1440 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1441 /* and build number (xx) */
1442 unsigned int update_version : 8; /* Update release version (uu) */
1443 unsigned int special_update_version : 8; /* Special update release version (c)*/
1444 unsigned int reserved1 : 16;
1445 unsigned int reserved2;
1446
1447 /* The following bits represents new JDK supports that VM has dependency on.
1448 * VM implementation can use these bits to determine which JDK version
1449 * and support it has to maintain runtime compatibility.
1450 *
1451 * When a new bit is added in a minor or update release, make sure
1452 * the new bit is also added in the main/baseline.
1453 */
1454 unsigned int thread_park_blocker : 1;
1455 unsigned int post_vm_init_hook_enabled : 1;
1456 unsigned int pending_list_uses_discovered_field : 1;
1457 unsigned int : 29;
1458 unsigned int : 32;
1459 unsigned int : 32;
1460 } jdk_version_info;
1461
1462 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1463 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1464 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1465
1466 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1467 * It will be zero for internal builds.
1468 */
1469 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1470
1471 /*
1472 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1473 * that is dynamically looked up by JVM.
1474 */
1475 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1476
1477 /*
1478 * This structure is used by the launcher to get the default thread
1479 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1480 * version of 1.1. As it is not supported otherwise, it has been removed
1481 * from jni.h
1482 */
1483 typedef struct JDK1_1InitArgs {
1484 jint version;
1485
1486 char **properties;
1487 jint checkSource;
1488 jint nativeStackSize;
1489 jint javaStackSize;
1490 jint minHeapSize;
1491 jint maxHeapSize;
1492 jint verifyMode;
1493 char *classpath;
1494
1495 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1496 void (JNICALL *exit)(jint code);
1497 void (JNICALL *abort)(void);
1498
1499 jint enableClassGC;
1500 jint enableVerboseGC;
1501 jint disableAsyncGC;
1502 jint verbose;
1503 jboolean debugging;
1504 jint debugPort;
1505 } JDK1_1InitArgs;
1506
1507
1508 #ifdef __cplusplus
1509 } /* extern "C" */
1510
1511 #endif /* __cplusplus */
1512
1513 #endif /* !_JAVASOFT_JVM_H_ */