1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #ifndef _JAVASOFT_JVM_H_
27 #define _JAVASOFT_JVM_H_
28
29 #include <sys/stat.h>
30
31 #include "jni.h"
32 #include "jvm_md.h"
33
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37
38 /*
39 * This file contains additional functions exported from the VM.
40 * These functions are complementary to the standard JNI support.
41 * There are three parts to this file:
42 *
43 * First, this file contains the VM-related functions needed by native
44 * libraries in the standard Java API. For example, the java.lang.Object
45 * class needs VM-level functions that wait for and notify monitors.
46 *
47 * Second, this file contains the functions and constant definitions
48 * needed by the byte code verifier and class file format checker.
49 * These functions allow the verifier and format checker to be written
50 * in a VM-independent way.
51 *
52 * Third, this file contains various I/O and nerwork operations needed
53 * by the standard Java I/O and network APIs.
54 */
55
56 /*
57 * Bump the version number when either of the following happens:
58 *
59 * 1. There is a change in JVM_* functions.
60 *
61 * 2. There is a change in the contract between VM and Java classes.
62 * For example, if the VM relies on a new private field in Thread
63 * class.
64 */
65
66 #define JVM_INTERFACE_VERSION 4
67
68 JNIEXPORT jint JNICALL
69 JVM_GetInterfaceVersion(void);
70
71 /*************************************************************************
72 PART 1: Functions for Native Libraries
73 ************************************************************************/
74 /*
75 * java.lang.Object
76 */
77 JNIEXPORT jint JNICALL
78 JVM_IHashCode(JNIEnv *env, jobject obj);
79
80 JNIEXPORT void JNICALL
81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
82
83 JNIEXPORT void JNICALL
84 JVM_MonitorNotify(JNIEnv *env, jobject obj);
85
86 JNIEXPORT void JNICALL
87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
88
89 JNIEXPORT jobject JNICALL
90 JVM_Clone(JNIEnv *env, jobject obj);
91
92 /*
93 * java.lang.String
94 */
95 JNIEXPORT jstring JNICALL
96 JVM_InternString(JNIEnv *env, jstring str);
97
98 /*
99 * java.lang.System
100 */
101 JNIEXPORT jlong JNICALL
102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
103
104 JNIEXPORT jlong JNICALL
105 JVM_NanoTime(JNIEnv *env, jclass ignored);
106
107 JNIEXPORT void JNICALL
108 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
109 jobject dst, jint dst_pos, jint length);
110
111 JNIEXPORT jobject JNICALL
112 JVM_InitProperties(JNIEnv *env, jobject p);
113
114 /*
115 * java.io.File
116 */
117 JNIEXPORT void JNICALL
118 JVM_OnExit(void (*func)(void));
119
120 /*
121 * java.lang.Runtime
122 */
123 JNIEXPORT void JNICALL
124 JVM_Exit(jint code);
125
126 JNIEXPORT void JNICALL
127 JVM_Halt(jint code);
128
129 JNIEXPORT void JNICALL
130 JVM_GC(void);
131
132 /* Returns the number of real-time milliseconds that have elapsed since the
133 * least-recently-inspected heap object was last inspected by the garbage
134 * collector.
135 *
136 * For simple stop-the-world collectors this value is just the time
137 * since the most recent collection. For generational collectors it is the
138 * time since the oldest generation was most recently collected. Other
139 * collectors are free to return a pessimistic estimate of the elapsed time, or
140 * simply the time since the last full collection was performed.
141 *
142 * Note that in the presence of reference objects, a given object that is no
143 * longer strongly reachable may have to be inspected multiple times before it
144 * can be reclaimed.
145 */
146 JNIEXPORT jlong JNICALL
147 JVM_MaxObjectInspectionAge(void);
148
149 JNIEXPORT void JNICALL
150 JVM_TraceInstructions(jboolean on);
151
152 JNIEXPORT void JNICALL
153 JVM_TraceMethodCalls(jboolean on);
154
155 JNIEXPORT jlong JNICALL
156 JVM_TotalMemory(void);
157
158 JNIEXPORT jlong JNICALL
159 JVM_FreeMemory(void);
160
161 JNIEXPORT jlong JNICALL
162 JVM_MaxMemory(void);
163
164 JNIEXPORT jint JNICALL
165 JVM_ActiveProcessorCount(void);
166
167 JNIEXPORT void * JNICALL
168 JVM_LoadLibrary(const char *name);
169
170 JNIEXPORT void JNICALL
171 JVM_UnloadLibrary(void * handle);
172
173 JNIEXPORT void * JNICALL
174 JVM_FindLibraryEntry(void *handle, const char *name);
175
176 JNIEXPORT jboolean JNICALL
177 JVM_IsSupportedJNIVersion(jint version);
178
179 /*
180 * java.lang.Float and java.lang.Double
181 */
182 JNIEXPORT jboolean JNICALL
183 JVM_IsNaN(jdouble d);
184
185 /*
186 * java.lang.Throwable
187 */
188 JNIEXPORT void JNICALL
189 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
190
191 JNIEXPORT void JNICALL
192 JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable);
193
194 JNIEXPORT jint JNICALL
195 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
196
197 JNIEXPORT jobject JNICALL
198 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
199
200 /*
201 * java.lang.Compiler
202 */
203 JNIEXPORT void JNICALL
204 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
205
206 JNIEXPORT jboolean JNICALL
207 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
208
209 JNIEXPORT jboolean JNICALL
210 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
211
212 JNIEXPORT jboolean JNICALL
213 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
214
215 JNIEXPORT jobject JNICALL
216 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
217
218 JNIEXPORT void JNICALL
219 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
220
221 JNIEXPORT void JNICALL
222 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
223
224 /*
225 * java.lang.Thread
226 */
227 JNIEXPORT void JNICALL
228 JVM_StartThread(JNIEnv *env, jobject thread);
229
230 JNIEXPORT void JNICALL
231 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
232
233 JNIEXPORT jboolean JNICALL
234 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
235
236 JNIEXPORT void JNICALL
237 JVM_SuspendThread(JNIEnv *env, jobject thread);
238
239 JNIEXPORT void JNICALL
240 JVM_ResumeThread(JNIEnv *env, jobject thread);
241
242 JNIEXPORT void JNICALL
243 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
244
245 JNIEXPORT void JNICALL
246 JVM_Yield(JNIEnv *env, jclass threadClass);
247
248 JNIEXPORT void JNICALL
249 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
250
251 JNIEXPORT jobject JNICALL
252 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
253
254 JNIEXPORT jint JNICALL
255 JVM_CountStackFrames(JNIEnv *env, jobject thread);
256
257 JNIEXPORT void JNICALL
258 JVM_Interrupt(JNIEnv *env, jobject thread);
259
260 JNIEXPORT jboolean JNICALL
261 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
262
263 JNIEXPORT jboolean JNICALL
264 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
265
266 JNIEXPORT void JNICALL
267 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
268
269 JNIEXPORT jobjectArray JNICALL
270 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
271
272 JNIEXPORT void JNICALL
273 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
274
275 /* getStackTrace() and getAllStackTraces() method */
276 JNIEXPORT jobjectArray JNICALL
277 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
278
279 /*
280 * java.lang.SecurityManager
281 */
282 JNIEXPORT jclass JNICALL
283 JVM_CurrentLoadedClass(JNIEnv *env);
284
285 JNIEXPORT jobject JNICALL
286 JVM_CurrentClassLoader(JNIEnv *env);
287
288 JNIEXPORT jobjectArray JNICALL
289 JVM_GetClassContext(JNIEnv *env);
290
291 JNIEXPORT jint JNICALL
292 JVM_ClassDepth(JNIEnv *env, jstring name);
293
294 JNIEXPORT jint JNICALL
295 JVM_ClassLoaderDepth(JNIEnv *env);
296
297 /*
298 * java.lang.Package
299 */
300 JNIEXPORT jstring JNICALL
301 JVM_GetSystemPackage(JNIEnv *env, jstring name);
302
303 JNIEXPORT jobjectArray JNICALL
304 JVM_GetSystemPackages(JNIEnv *env);
305
306 /*
307 * java.io.ObjectInputStream
308 */
309 JNIEXPORT jobject JNICALL
310 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
311 jclass initClass);
312
313 JNIEXPORT jobject JNICALL
314 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
315 jint length);
316
317 JNIEXPORT jobject JNICALL
318 JVM_LatestUserDefinedLoader(JNIEnv *env);
319
320 /*
321 * This function has been deprecated and should not be considered
322 * part of the specified JVM interface.
323 */
324 JNIEXPORT jclass JNICALL
325 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
326 jstring currClassName);
327
328 /*
329 * java.lang.reflect.Array
330 */
331 JNIEXPORT jint JNICALL
332 JVM_GetArrayLength(JNIEnv *env, jobject arr);
333
334 JNIEXPORT jobject JNICALL
335 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
336
337 JNIEXPORT jvalue JNICALL
338 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
339
340 JNIEXPORT void JNICALL
341 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
342
343 JNIEXPORT void JNICALL
344 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
345 unsigned char vCode);
346
347 JNIEXPORT jobject JNICALL
348 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
349
350 JNIEXPORT jobject JNICALL
351 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
352
353 /*
354 * java.lang.Class and java.lang.ClassLoader
355 */
356 /*
357 * Returns the class in which the code invoking the native method
358 * belongs.
359 *
360 * Note that in JDK 1.1, native methods did not create a frame.
361 * In 1.2, they do. Therefore native methods like Class.forName
362 * can no longer look at the current frame for the caller class.
363 */
364 JNIEXPORT jclass JNICALL
365 JVM_GetCallerClass(JNIEnv *env, int n);
366
367 /*
368 * Find primitive classes
369 * utf: class name
370 */
371 JNIEXPORT jclass JNICALL
372 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
373
374 /*
375 * Link the class
376 */
377 JNIEXPORT void JNICALL
378 JVM_ResolveClass(JNIEnv *env, jclass cls);
379
380 /*
381 * Find a class from a boot class loader. Returns NULL if class not found.
382 */
383 JNIEXPORT jclass JNICALL
384 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
385
386 /*
387 * Find a class from a given class loader. Throw ClassNotFoundException
388 * or NoClassDefFoundError depending on the value of the last
389 * argument.
390 */
391 JNIEXPORT jclass JNICALL
392 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
393 jobject loader, jboolean throwError);
394
395 /*
396 * Find a class from a given class.
397 */
398 JNIEXPORT jclass JNICALL
399 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
400 jclass from);
401
402 /* Find a loaded class cached by the VM */
403 JNIEXPORT jclass JNICALL
404 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
405
406 /* Define a class */
407 JNIEXPORT jclass JNICALL
408 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
409 jsize len, jobject pd);
410
411 /* Define a class with a source (added in JDK1.5) */
412 JNIEXPORT jclass JNICALL
413 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
414 const jbyte *buf, jsize len, jobject pd,
415 const char *source);
416
417 /*
418 * Reflection support functions
419 */
420
421 JNIEXPORT jstring JNICALL
422 JVM_GetClassName(JNIEnv *env, jclass cls);
423
424 JNIEXPORT jobjectArray JNICALL
425 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
426
427 JNIEXPORT jobject JNICALL
428 JVM_GetClassLoader(JNIEnv *env, jclass cls);
429
430 JNIEXPORT jboolean JNICALL
431 JVM_IsInterface(JNIEnv *env, jclass cls);
432
433 JNIEXPORT jobjectArray JNICALL
434 JVM_GetClassSigners(JNIEnv *env, jclass cls);
435
436 JNIEXPORT void JNICALL
437 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
438
439 JNIEXPORT jobject JNICALL
440 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
441
442 JNIEXPORT void JNICALL
443 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
444
445 JNIEXPORT jboolean JNICALL
446 JVM_IsArrayClass(JNIEnv *env, jclass cls);
447
448 JNIEXPORT jboolean JNICALL
449 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
450
451 JNIEXPORT jclass JNICALL
452 JVM_GetComponentType(JNIEnv *env, jclass cls);
453
454 JNIEXPORT jint JNICALL
455 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
456
457 JNIEXPORT jobjectArray JNICALL
458 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
459
460 JNIEXPORT jclass JNICALL
461 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
462
463 /* Generics support (JDK 1.5) */
464 JNIEXPORT jstring JNICALL
465 JVM_GetClassSignature(JNIEnv *env, jclass cls);
466
467 /* Annotations support (JDK 1.5) */
468 JNIEXPORT jbyteArray JNICALL
469 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
470
471 /*
472 * New (JDK 1.4) reflection implementation
473 */
474
475 JNIEXPORT jobjectArray JNICALL
476 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
477
478 JNIEXPORT jobjectArray JNICALL
479 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
480
481 JNIEXPORT jobjectArray JNICALL
482 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
483
484 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
485 This returns the access flags for the class as specified in the
486 class file rather than searching the InnerClasses attribute (if
487 present) to find the source-level access flags. Only the values of
488 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
489 valid. */
490 JNIEXPORT jint JNICALL
491 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
492
493 /* The following two reflection routines are still needed due to startup time issues */
494 /*
495 * java.lang.reflect.Method
496 */
497 JNIEXPORT jobject JNICALL
498 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
499
500 /*
501 * java.lang.reflect.Constructor
502 */
503 JNIEXPORT jobject JNICALL
504 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
505
506 /*
507 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
508 */
509
510 JNIEXPORT jobject JNICALL
511 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
512
513 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
514 (JNIEnv *env, jobject unused, jobject jcpool);
515
516 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
517 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
518
519 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
520 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
521
522 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
523 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
524
525 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
526 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
527
528 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
529 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
530
531 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
532 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
533
534 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
535 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
536
537 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
538 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
539
540 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
541 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
542
543 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
544 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
545
546 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
547 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
548
549 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
550 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
551
552 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
553 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
554
555 /*
556 * java.security.*
557 */
558
559 JNIEXPORT jobject JNICALL
560 JVM_DoPrivileged(JNIEnv *env, jclass cls,
561 jobject action, jobject context, jboolean wrapException);
562
563 JNIEXPORT jobject JNICALL
564 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
565
566 JNIEXPORT jobject JNICALL
567 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
568
569 /*
570 * Signal support, used to implement the shutdown sequence. Every VM must
571 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
572 * (^C) and the latter for external termination (kill, system shutdown, etc.).
573 * Other platform-dependent signal values may also be supported.
574 */
575
576 JNIEXPORT void * JNICALL
577 JVM_RegisterSignal(jint sig, void *handler);
578
579 JNIEXPORT jboolean JNICALL
580 JVM_RaiseSignal(jint sig);
581
582 JNIEXPORT jint JNICALL
583 JVM_FindSignal(const char *name);
584
585 /*
586 * Retrieve the assertion directives for the specified class.
587 */
588 JNIEXPORT jboolean JNICALL
589 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
590
591 /*
592 * Retrieve the assertion directives from the VM.
593 */
594 JNIEXPORT jobject JNICALL
595 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
596
597 /*
598 * java.util.concurrent.atomic.AtomicLong
599 */
600 JNIEXPORT jboolean JNICALL
601 JVM_SupportsCX8(void);
602
603 /*
604 * com.sun.dtrace.jsdt support
605 */
606
607 #define JVM_TRACING_DTRACE_VERSION 1
608
609 /*
610 * Structure to pass one probe description to JVM
611 */
612 typedef struct {
613 jmethodID method;
614 jstring function;
615 jstring name;
616 void* reserved[4]; // for future use
617 } JVM_DTraceProbe;
618
619 /**
620 * Encapsulates the stability ratings for a DTrace provider field
621 */
622 typedef struct {
623 jint nameStability;
624 jint dataStability;
625 jint dependencyClass;
626 } JVM_DTraceInterfaceAttributes;
627
628 /*
629 * Structure to pass one provider description to JVM
630 */
631 typedef struct {
632 jstring name;
633 JVM_DTraceProbe* probes;
634 jint probe_count;
635 JVM_DTraceInterfaceAttributes providerAttributes;
636 JVM_DTraceInterfaceAttributes moduleAttributes;
637 JVM_DTraceInterfaceAttributes functionAttributes;
638 JVM_DTraceInterfaceAttributes nameAttributes;
639 JVM_DTraceInterfaceAttributes argsAttributes;
640 void* reserved[4]; // for future use
641 } JVM_DTraceProvider;
642
643 /*
644 * Get the version number the JVM was built with
645 */
646 JNIEXPORT jint JNICALL
647 JVM_DTraceGetVersion(JNIEnv* env);
648
649 /*
650 * Register new probe with given signature, return global handle
651 *
652 * The version passed in is the version that the library code was
653 * built with.
654 */
655 JNIEXPORT jlong JNICALL
656 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
657 jint providers_count, JVM_DTraceProvider* providers);
658
659 /*
660 * Check JSDT probe
661 */
662 JNIEXPORT jboolean JNICALL
663 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
664
665 /*
666 * Destroy custom DOF
667 */
668 JNIEXPORT void JNICALL
669 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
670
671 /*
672 * Check to see if DTrace is supported by OS
673 */
674 JNIEXPORT jboolean JNICALL
675 JVM_DTraceIsSupported(JNIEnv* env);
676
677 /*************************************************************************
678 PART 2: Support for the Verifier and Class File Format Checker
679 ************************************************************************/
680 /*
681 * Return the class name in UTF format. The result is valid
682 * until JVM_ReleaseUTf is called.
683 *
684 * The caller must treat the string as a constant and not modify it
685 * in any way.
686 */
687 JNIEXPORT const char * JNICALL
688 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
689
690 /*
691 * Returns the constant pool types in the buffer provided by "types."
692 */
693 JNIEXPORT void JNICALL
694 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
695
696 /*
697 * Returns the number of Constant Pool entries.
698 */
699 JNIEXPORT jint JNICALL
700 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
701
702 /*
703 * Returns the number of *declared* fields or methods.
704 */
705 JNIEXPORT jint JNICALL
706 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
707
708 JNIEXPORT jint JNICALL
709 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
710
711 /*
712 * Returns the CP indexes of exceptions raised by a given method.
713 * Places the result in the given buffer.
714 *
715 * The method is identified by method_index.
716 */
717 JNIEXPORT void JNICALL
718 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
719 unsigned short *exceptions);
720 /*
721 * Returns the number of exceptions raised by a given method.
722 * The method is identified by method_index.
723 */
724 JNIEXPORT jint JNICALL
725 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
726
727 /*
728 * Returns the byte code sequence of a given method.
729 * Places the result in the given buffer.
730 *
731 * The method is identified by method_index.
732 */
733 JNIEXPORT void JNICALL
734 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
735 unsigned char *code);
736
737 /*
738 * Returns the length of the byte code sequence of a given method.
739 * The method is identified by method_index.
740 */
741 JNIEXPORT jint JNICALL
742 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
743
744 /*
745 * A structure used to a capture exception table entry in a Java method.
746 */
747 typedef struct {
748 jint start_pc;
749 jint end_pc;
750 jint handler_pc;
751 jint catchType;
752 } JVM_ExceptionTableEntryType;
753
754 /*
755 * Returns the exception table entry at entry_index of a given method.
756 * Places the result in the given buffer.
757 *
758 * The method is identified by method_index.
759 */
760 JNIEXPORT void JNICALL
761 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
762 jint entry_index,
763 JVM_ExceptionTableEntryType *entry);
764
765 /*
766 * Returns the length of the exception table of a given method.
767 * The method is identified by method_index.
768 */
769 JNIEXPORT jint JNICALL
770 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
771
772 /*
773 * Returns the modifiers of a given field.
774 * The field is identified by field_index.
775 */
776 JNIEXPORT jint JNICALL
777 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
778
779 /*
780 * Returns the modifiers of a given method.
781 * The method is identified by method_index.
782 */
783 JNIEXPORT jint JNICALL
784 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
785
786 /*
787 * Returns the number of local variables of a given method.
788 * The method is identified by method_index.
789 */
790 JNIEXPORT jint JNICALL
791 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
792
793 /*
794 * Returns the number of arguments (including this pointer) of a given method.
795 * The method is identified by method_index.
796 */
797 JNIEXPORT jint JNICALL
798 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
799
800 /*
801 * Returns the maximum amount of stack (in words) used by a given method.
802 * The method is identified by method_index.
803 */
804 JNIEXPORT jint JNICALL
805 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
806
807 /*
808 * Is a given method a constructor.
809 * The method is identified by method_index.
810 */
811 JNIEXPORT jboolean JNICALL
812 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
813
814 /*
815 * Returns the name of a given method in UTF format.
816 * The result remains valid until JVM_ReleaseUTF is called.
817 *
818 * The caller must treat the string as a constant and not modify it
819 * in any way.
820 */
821 JNIEXPORT const char * JNICALL
822 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
823
824 /*
825 * Returns the signature of a given method in UTF format.
826 * The result remains valid until JVM_ReleaseUTF is called.
827 *
828 * The caller must treat the string as a constant and not modify it
829 * in any way.
830 */
831 JNIEXPORT const char * JNICALL
832 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
833
834 /*
835 * Returns the name of the field refered to at a given constant pool
836 * index.
837 *
838 * The result is in UTF format and remains valid until JVM_ReleaseUTF
839 * is called.
840 *
841 * The caller must treat the string as a constant and not modify it
842 * in any way.
843 */
844 JNIEXPORT const char * JNICALL
845 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
846
847 /*
848 * Returns the name of the method refered to at a given constant pool
849 * index.
850 *
851 * The result is in UTF format and remains valid until JVM_ReleaseUTF
852 * is called.
853 *
854 * The caller must treat the string as a constant and not modify it
855 * in any way.
856 */
857 JNIEXPORT const char * JNICALL
858 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
859
860 /*
861 * Returns the signature of the method refered to at a given constant pool
862 * index.
863 *
864 * The result is in UTF format and remains valid until JVM_ReleaseUTF
865 * is called.
866 *
867 * The caller must treat the string as a constant and not modify it
868 * in any way.
869 */
870 JNIEXPORT const char * JNICALL
871 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
872
873 /*
874 * Returns the signature of the field refered to at a given constant pool
875 * index.
876 *
877 * The result is in UTF format and remains valid until JVM_ReleaseUTF
878 * is called.
879 *
880 * The caller must treat the string as a constant and not modify it
881 * in any way.
882 */
883 JNIEXPORT const char * JNICALL
884 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
885
886 /*
887 * Returns the class name refered to at a given constant pool index.
888 *
889 * The result is in UTF format and remains valid until JVM_ReleaseUTF
890 * is called.
891 *
892 * The caller must treat the string as a constant and not modify it
893 * in any way.
894 */
895 JNIEXPORT const char * JNICALL
896 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
897
898 /*
899 * Returns the class name refered to at a given constant pool index.
900 *
901 * The constant pool entry must refer to a CONSTANT_Fieldref.
902 *
903 * The result is in UTF format and remains valid until JVM_ReleaseUTF
904 * is called.
905 *
906 * The caller must treat the string as a constant and not modify it
907 * in any way.
908 */
909 JNIEXPORT const char * JNICALL
910 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
911
912 /*
913 * Returns the class name refered to at a given constant pool index.
914 *
915 * The constant pool entry must refer to CONSTANT_Methodref or
916 * CONSTANT_InterfaceMethodref.
917 *
918 * The result is in UTF format and remains valid until JVM_ReleaseUTF
919 * is called.
920 *
921 * The caller must treat the string as a constant and not modify it
922 * in any way.
923 */
924 JNIEXPORT const char * JNICALL
925 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
926
927 /*
928 * Returns the modifiers of a field in calledClass. The field is
929 * referred to in class cb at constant pool entry index.
930 *
931 * The caller must treat the string as a constant and not modify it
932 * in any way.
933 *
934 * Returns -1 if the field does not exist in calledClass.
935 */
936 JNIEXPORT jint JNICALL
937 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
938
939 /*
940 * Returns the modifiers of a method in calledClass. The method is
941 * referred to in class cb at constant pool entry index.
942 *
943 * Returns -1 if the method does not exist in calledClass.
944 */
945 JNIEXPORT jint JNICALL
946 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
947
948 /*
949 * Releases the UTF string obtained from the VM.
950 */
951 JNIEXPORT void JNICALL
952 JVM_ReleaseUTF(const char *utf);
953
954 /*
955 * Compare if two classes are in the same package.
956 */
957 JNIEXPORT jboolean JNICALL
958 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
959
960 /* Get classfile constants */
961 #include "classfile_constants.h"
962
963 /*
964 * A function defined by the byte-code verifier and called by the VM.
965 * This is not a function implemented in the VM.
966 *
967 * Returns JNI_FALSE if verification fails. A detailed error message
968 * will be places in msg_buf, whose length is specified by buf_len.
969 */
970 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
971 jclass cb,
972 char * msg_buf,
973 jint buf_len);
974
975
976 /*
977 * Support for a VM-independent class format checker.
978 */
979 typedef struct {
980 unsigned long code; /* byte code */
981 unsigned long excs; /* exceptions */
982 unsigned long etab; /* catch table */
983 unsigned long lnum; /* line number */
984 unsigned long lvar; /* local vars */
985 } method_size_info;
986
987 typedef struct {
988 unsigned int constants; /* constant pool */
989 unsigned int fields;
990 unsigned int methods;
991 unsigned int interfaces;
992 unsigned int fields2; /* number of static 2-word fields */
993 unsigned int innerclasses; /* # of records in InnerClasses attr */
994
995 method_size_info clinit; /* memory used in clinit */
996 method_size_info main; /* used everywhere else */
997 } class_size_info;
998
999 /*
1000 * Functions defined in libjava.so to perform string conversions.
1001 *
1002 */
1003
1004 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1005
1006 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1007
1008 /* This is the function defined in libjava.so that performs class
1009 * format checks. This functions fills in size information about
1010 * the class file and returns:
1011 *
1012 * 0: good
1013 * -1: out of memory
1014 * -2: bad format
1015 * -3: unsupported version
1016 * -4: bad class name
1017 */
1018
1019 typedef jint (*check_format_fn_t)(char *class_name,
1020 unsigned char *data,
1021 unsigned int data_size,
1022 class_size_info *class_size,
1023 char *message_buffer,
1024 jint buffer_length,
1025 jboolean measure_only,
1026 jboolean check_relaxed);
1027
1028 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1029 JVM_ACC_FINAL | \
1030 JVM_ACC_SUPER | \
1031 JVM_ACC_INTERFACE | \
1032 JVM_ACC_ABSTRACT | \
1033 JVM_ACC_ANNOTATION | \
1034 JVM_ACC_ENUM | \
1035 JVM_ACC_SYNTHETIC)
1036
1037 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1038 JVM_ACC_PRIVATE | \
1039 JVM_ACC_PROTECTED | \
1040 JVM_ACC_STATIC | \
1041 JVM_ACC_FINAL | \
1042 JVM_ACC_VOLATILE | \
1043 JVM_ACC_TRANSIENT | \
1044 JVM_ACC_ENUM | \
1045 JVM_ACC_SYNTHETIC)
1046
1047 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1048 JVM_ACC_PRIVATE | \
1049 JVM_ACC_PROTECTED | \
1050 JVM_ACC_STATIC | \
1051 JVM_ACC_FINAL | \
1052 JVM_ACC_SYNCHRONIZED | \
1053 JVM_ACC_BRIDGE | \
1054 JVM_ACC_VARARGS | \
1055 JVM_ACC_NATIVE | \
1056 JVM_ACC_ABSTRACT | \
1057 JVM_ACC_STRICT | \
1058 JVM_ACC_SYNTHETIC)
1059
1060 /*
1061 * This is the function defined in libjava.so to perform path
1062 * canonicalization. VM call this function before opening jar files
1063 * to load system classes.
1064 *
1065 */
1066
1067 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1068
1069 /*************************************************************************
1070 PART 3: I/O and Network Support
1071 ************************************************************************/
1072
1073 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1074 * when there is any kind of error. The caller can then use the
1075 * platform specific support (e.g., errno) to get the detailed
1076 * error info. The JVM_GetLastErrorString procedure may also be used
1077 * to obtain a descriptive error string.
1078 */
1079 #define JVM_IO_ERR (-1)
1080
1081 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1082 * operation has been disrupted by Thread.interrupt. There are a
1083 * number of technical difficulties related to interruptible IO that
1084 * need to be solved. For example, most existing programs do not handle
1085 * InterruptedIOExceptions specially, they simply treat those as any
1086 * IOExceptions, which typically indicate fatal errors.
1087 *
1088 * There are also two modes of operation for interruptible IO. In the
1089 * resumption mode, an interrupted IO operation is guaranteed not to
1090 * have any side-effects, and can be restarted. In the termination mode,
1091 * an interrupted IO operation corrupts the underlying IO stream, so
1092 * that the only reasonable operation on an interrupted stream is to
1093 * close that stream. The resumption mode seems to be impossible to
1094 * implement on Win32 and Solaris. Implementing the termination mode is
1095 * easier, but it's not clear that's the right semantics.
1096 *
1097 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1098 * using a compile-time flag on Solaris. Third-party JVM ports do not
1099 * need to implement interruptible IO.
1100 */
1101 #define JVM_IO_INTR (-2)
1102
1103 /* Write a string into the given buffer, in the platform's local encoding,
1104 * that describes the most recent system-level error to occur in this thread.
1105 * Return the length of the string or zero if no error occurred.
1106 */
1107 JNIEXPORT jint JNICALL
1108 JVM_GetLastErrorString(char *buf, int len);
1109
1110 /*
1111 * Convert a pathname into native format. This function does syntactic
1112 * cleanup, such as removing redundant separator characters. It modifies
1113 * the given pathname string in place.
1114 */
1115 JNIEXPORT char * JNICALL
1116 JVM_NativePath(char *);
1117
1118 /*
1119 * JVM I/O error codes
1120 */
1121 #define JVM_EEXIST -100
1122
1123 /*
1124 * Open a file descriptor. This function returns a negative error code
1125 * on error, and a non-negative integer that is the file descriptor on
1126 * success.
1127 */
1128 JNIEXPORT jint JNICALL
1129 JVM_Open(const char *fname, jint flags, jint mode);
1130
1131 /*
1132 * Close a file descriptor. This function returns -1 on error, and 0
1133 * on success.
1134 *
1135 * fd the file descriptor to close.
1136 */
1137 JNIEXPORT jint JNICALL
1138 JVM_Close(jint fd);
1139
1140 /*
1141 * Read data from a file decriptor into a char array.
1142 *
1143 * fd the file descriptor to read from.
1144 * buf the buffer where to put the read data.
1145 * nbytes the number of bytes to read.
1146 *
1147 * This function returns -1 on error, and 0 on success.
1148 */
1149 JNIEXPORT jint JNICALL
1150 JVM_Read(jint fd, char *buf, jint nbytes);
1151
1152 /*
1153 * Write data from a char array to a file decriptor.
1154 *
1155 * fd the file descriptor to read from.
1156 * buf the buffer from which to fetch the data.
1157 * nbytes the number of bytes to write.
1158 *
1159 * This function returns -1 on error, and 0 on success.
1160 */
1161 JNIEXPORT jint JNICALL
1162 JVM_Write(jint fd, char *buf, jint nbytes);
1163
1164 /*
1165 * Returns the number of bytes available for reading from a given file
1166 * descriptor
1167 */
1168 JNIEXPORT jint JNICALL
1169 JVM_Available(jint fd, jlong *pbytes);
1170
1171 /*
1172 * Move the file descriptor pointer from whence by offset.
1173 *
1174 * fd the file descriptor to move.
1175 * offset the number of bytes to move it by.
1176 * whence the start from where to move it.
1177 *
1178 * This function returns the resulting pointer location.
1179 */
1180 JNIEXPORT jlong JNICALL
1181 JVM_Lseek(jint fd, jlong offset, jint whence);
1182
1183 /*
1184 * Set the length of the file associated with the given descriptor to the given
1185 * length. If the new length is longer than the current length then the file
1186 * is extended; the contents of the extended portion are not defined. The
1187 * value of the file pointer is undefined after this procedure returns.
1188 */
1189 JNIEXPORT jint JNICALL
1190 JVM_SetLength(jint fd, jlong length);
1191
1192 /*
1193 * Synchronize the file descriptor's in memory state with that of the
1194 * physical device. Return of -1 is an error, 0 is OK.
1195 */
1196 JNIEXPORT jint JNICALL
1197 JVM_Sync(jint fd);
1198
1199 /*
1200 * Networking library support
1201 */
1202
1203 JNIEXPORT jint JNICALL
1204 JVM_InitializeSocketLibrary(void);
1205
1206 struct sockaddr;
1207
1208 JNIEXPORT jint JNICALL
1209 JVM_Socket(jint domain, jint type, jint protocol);
1210
1211 JNIEXPORT jint JNICALL
1212 JVM_SocketClose(jint fd);
1213
1214 JNIEXPORT jint JNICALL
1215 JVM_SocketShutdown(jint fd, jint howto);
1216
1217 JNIEXPORT jint JNICALL
1218 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1219
1220 JNIEXPORT jint JNICALL
1221 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1222
1223 JNIEXPORT jint JNICALL
1224 JVM_Timeout(int fd, long timeout);
1225
1226 JNIEXPORT jint JNICALL
1227 JVM_Listen(jint fd, jint count);
1228
1229 JNIEXPORT jint JNICALL
1230 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1231
1232 JNIEXPORT jint JNICALL
1233 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1234
1235 JNIEXPORT jint JNICALL
1236 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1237
1238 JNIEXPORT jint JNICALL
1239 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1240 int flags, struct sockaddr *from, int *fromlen);
1241
1242 JNIEXPORT jint JNICALL
1243 JVM_SendTo(jint fd, char *buf, int len,
1244 int flags, struct sockaddr *to, int tolen);
1245
1246 JNIEXPORT jint JNICALL
1247 JVM_SocketAvailable(jint fd, jint *result);
1248
1249
1250 JNIEXPORT jint JNICALL
1251 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1252
1253 JNIEXPORT jint JNICALL
1254 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1255
1256 JNIEXPORT jint JNICALL
1257 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1258
1259 JNIEXPORT int JNICALL
1260 JVM_GetHostName(char* name, int namelen);
1261
1262 /*
1263 * The standard printing functions supported by the Java VM. (Should they
1264 * be renamed to JVM_* in the future?
1265 */
1266
1267 /*
1268 * BE CAREFUL! The following functions do not implement the
1269 * full feature set of standard C printf formats.
1270 */
1271 int
1272 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1273
1274 int
1275 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1276
1277 int
1278 jio_fprintf(FILE *, const char *fmt, ...);
1279
1280 int
1281 jio_vfprintf(FILE *, const char *fmt, va_list args);
1282
1283
1284 JNIEXPORT void * JNICALL
1285 JVM_RawMonitorCreate(void);
1286
1287 JNIEXPORT void JNICALL
1288 JVM_RawMonitorDestroy(void *mon);
1289
1290 JNIEXPORT jint JNICALL
1291 JVM_RawMonitorEnter(void *mon);
1292
1293 JNIEXPORT void JNICALL
1294 JVM_RawMonitorExit(void *mon);
1295
1296 /*
1297 * java.lang.management support
1298 */
1299 JNIEXPORT void* JNICALL
1300 JVM_GetManagement(jint version);
1301
1302 /*
1303 * com.sun.tools.attach.VirtualMachine support
1304 *
1305 * Initialize the agent properties with the properties maintained in the VM.
1306 */
1307 JNIEXPORT jobject JNICALL
1308 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1309
1310 /* Generics reflection support.
1311 *
1312 * Returns information about the given class's EnclosingMethod
1313 * attribute, if present, or null if the class had no enclosing
1314 * method.
1315 *
1316 * If non-null, the returned array contains three elements. Element 0
1317 * is the java.lang.Class of which the enclosing method is a member,
1318 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1319 * method's name and descriptor, respectively.
1320 */
1321 JNIEXPORT jobjectArray JNICALL
1322 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1323
1324 /*
1325 * Java thread state support
1326 */
1327 enum {
1328 JAVA_THREAD_STATE_NEW = 0,
1329 JAVA_THREAD_STATE_RUNNABLE = 1,
1330 JAVA_THREAD_STATE_BLOCKED = 2,
1331 JAVA_THREAD_STATE_WAITING = 3,
1332 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1333 JAVA_THREAD_STATE_TERMINATED = 5,
1334 JAVA_THREAD_STATE_COUNT = 6
1335 };
1336
1337 /*
1338 * Returns an array of the threadStatus values representing the
1339 * given Java thread state. Returns NULL if the VM version is
1340 * incompatible with the JDK or doesn't support the given
1341 * Java thread state.
1342 */
1343 JNIEXPORT jintArray JNICALL
1344 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1345
1346 /*
1347 * Returns an array of the substate names representing the
1348 * given Java thread state. Returns NULL if the VM version is
1349 * incompatible with the JDK or the VM doesn't support
1350 * the given Java thread state.
1351 * values must be the jintArray returned from JVM_GetThreadStateValues
1352 * and javaThreadState.
1353 */
1354 JNIEXPORT jobjectArray JNICALL
1355 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1356
1357 /* =========================================================================
1358 * The following defines a private JVM interface that the JDK can query
1359 * for the JVM version and capabilities. sun.misc.Version defines
1360 * the methods for getting the VM version and its capabilities.
1361 *
1362 * When a new bit is added, the following should be updated to provide
1363 * access to the new capability:
1364 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1365 * SDK: Version class
1366 *
1367 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1368 * JVM to query for the JDK version and capabilities.
1369 *
1370 * When a new bit is added, the following should be updated to provide
1371 * access to the new capability:
1372 * HS: JDK_Version class
1373 * SDK: JDK_GetVersionInfo0
1374 *
1375 * ==========================================================================
1376 */
1377 typedef struct {
1378 /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */
1379 unsigned int jvm_version; /* Consists of major, minor, micro (n.n.n) */
1380 /* and build number (xx) */
1381 unsigned int update_version : 8; /* Update release version (uu) */
1382 unsigned int special_update_version : 8; /* Special update release version (c)*/
1383 unsigned int reserved1 : 16;
1384 unsigned int reserved2;
1385
1386 /* The following bits represents JVM supports that JDK has dependency on.
1387 * JDK can use these bits to determine which JVM version
1388 * and support it has to maintain runtime compatibility.
1389 *
1390 * When a new bit is added in a minor or update release, make sure
1391 * the new bit is also added in the main/baseline.
1392 */
1393 unsigned int is_attach_supported : 1;
1394 unsigned int is_kernel_jvm : 1;
1395 unsigned int : 30;
1396 unsigned int : 32;
1397 unsigned int : 32;
1398 } jvm_version_info;
1399
1400 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1401 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1402 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1403
1404 /* Build number is available only for RE builds.
1405 * It will be zero for internal builds.
1406 */
1407 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1408
1409 JNIEXPORT void JNICALL
1410 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1411
1412 typedef struct {
1413 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1414 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1415 /* and build number (xx) */
1416 unsigned int update_version : 8; /* Update release version (uu) */
1417 unsigned int special_update_version : 8; /* Special update release version (c)*/
1418 unsigned int reserved1 : 16;
1419 unsigned int reserved2;
1420
1421 /* The following bits represents new JDK supports that VM has dependency on.
1422 * VM implementation can use these bits to determine which JDK version
1423 * and support it has to maintain runtime compatibility.
1424 *
1425 * When a new bit is added in a minor or update release, make sure
1426 * the new bit is also added in the main/baseline.
1427 */
1428 unsigned int thread_park_blocker : 1;
1429 unsigned int post_vm_init_hook_enabled : 1;
1430 unsigned int pending_list_uses_discovered_field : 1;
1431 unsigned int : 29;
1432 unsigned int : 32;
1433 unsigned int : 32;
1434 } jdk_version_info;
1435
1436 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1437 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1438 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1439
1440 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1441 * It will be zero for internal builds.
1442 */
1443 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1444
1445 /*
1446 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1447 * that is dynamically looked up by JVM.
1448 */
1449 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1450
1451 /*
1452 * This structure is used by the launcher to get the default thread
1453 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1454 * version of 1.1. As it is not supported otherwise, it has been removed
1455 * from jni.h
1456 */
1457 typedef struct JDK1_1InitArgs {
1458 jint version;
1459
1460 char **properties;
1461 jint checkSource;
1462 jint nativeStackSize;
1463 jint javaStackSize;
1464 jint minHeapSize;
1465 jint maxHeapSize;
1466 jint verifyMode;
1467 char *classpath;
1468
1469 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1470 void (JNICALL *exit)(jint code);
1471 void (JNICALL *abort)(void);
1472
1473 jint enableClassGC;
1474 jint enableVerboseGC;
1475 jint disableAsyncGC;
1476 jint verbose;
1477 jboolean debugging;
1478 jint debugPort;
1479 } JDK1_1InitArgs;
1480
1481
1482 #ifdef __cplusplus
1483 } /* extern "C" */
1484
1485 #endif /* __cplusplus */
1486
1487 #endif /* !_JAVASOFT_JVM_H_ */