1 /*
2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #ifndef _JAVASOFT_JVM_H_
27 #define _JAVASOFT_JVM_H_
28
29 #include <sys/stat.h>
30
31 #include "jni.h"
32 #include "jvm_md.h"
33
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37
38 /*
39 * This file contains additional functions exported from the VM.
40 * These functions are complementary to the standard JNI support.
41 * There are three parts to this file:
42 *
43 * First, this file contains the VM-related functions needed by native
44 * libraries in the standard Java API. For example, the java.lang.Object
45 * class needs VM-level functions that wait for and notify monitors.
46 *
47 * Second, this file contains the functions and constant definitions
48 * needed by the byte code verifier and class file format checker.
49 * These functions allow the verifier and format checker to be written
50 * in a VM-independent way.
51 *
52 * Third, this file contains various I/O and nerwork operations needed
53 * by the standard Java I/O and network APIs.
54 */
55
56 /*
57 * Bump the version number when either of the following happens:
58 *
59 * 1. There is a change in JVM_* functions.
60 *
61 * 2. There is a change in the contract between VM and Java classes.
62 * For example, if the VM relies on a new private field in Thread
63 * class.
64 */
65
66 #define JVM_INTERFACE_VERSION 4
67
68 JNIEXPORT jint JNICALL
69 JVM_GetInterfaceVersion(void);
70
71 /*************************************************************************
72 PART 1: Functions for Native Libraries
73 ************************************************************************/
74 /*
75 * java.lang.Object
76 */
77 JNIEXPORT jint JNICALL
78 JVM_IHashCode(JNIEnv *env, jobject obj);
79
80 JNIEXPORT void JNICALL
81 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
82
83 JNIEXPORT void JNICALL
84 JVM_MonitorNotify(JNIEnv *env, jobject obj);
85
86 JNIEXPORT void JNICALL
87 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
88
89 JNIEXPORT jobject JNICALL
90 JVM_Clone(JNIEnv *env, jobject obj);
91
92 /*
93 * java.lang.String
94 */
95 JNIEXPORT jstring JNICALL
96 JVM_InternString(JNIEnv *env, jstring str);
97
98 /*
99 * java.lang.System
100 */
101 JNIEXPORT jlong JNICALL
102 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
103
104 JNIEXPORT jlong JNICALL
105 JVM_NanoTime(JNIEnv *env, jclass ignored);
106
107 JNIEXPORT void JNICALL
108 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
109 jobject dst, jint dst_pos, jint length);
110
111 JNIEXPORT jobject JNICALL
112 JVM_InitProperties(JNIEnv *env, jobject p);
113
114 /*
115 * java.io.File
116 */
117 JNIEXPORT void JNICALL
118 JVM_OnExit(void (*func)(void));
119
120 /*
121 * java.lang.Runtime
122 */
123 JNIEXPORT void JNICALL
124 JVM_Exit(jint code);
125
126 JNIEXPORT void JNICALL
127 JVM_Halt(jint code);
128
129 JNIEXPORT void JNICALL
130 JVM_GC(void);
131
132 /* Returns the number of real-time milliseconds that have elapsed since the
133 * least-recently-inspected heap object was last inspected by the garbage
134 * collector.
135 *
136 * For simple stop-the-world collectors this value is just the time
137 * since the most recent collection. For generational collectors it is the
138 * time since the oldest generation was most recently collected. Other
139 * collectors are free to return a pessimistic estimate of the elapsed time, or
140 * simply the time since the last full collection was performed.
141 *
142 * Note that in the presence of reference objects, a given object that is no
143 * longer strongly reachable may have to be inspected multiple times before it
144 * can be reclaimed.
145 */
146 JNIEXPORT jlong JNICALL
147 JVM_MaxObjectInspectionAge(void);
148
149 JNIEXPORT void JNICALL
150 JVM_TraceInstructions(jboolean on);
151
152 JNIEXPORT void JNICALL
153 JVM_TraceMethodCalls(jboolean on);
154
155 JNIEXPORT jlong JNICALL
156 JVM_TotalMemory(void);
157
158 JNIEXPORT jlong JNICALL
159 JVM_FreeMemory(void);
160
161 JNIEXPORT jlong JNICALL
162 JVM_MaxMemory(void);
163
164 JNIEXPORT jint JNICALL
165 JVM_ActiveProcessorCount(void);
166
167 JNIEXPORT void * JNICALL
168 JVM_LoadLibrary(const char *name);
169
170 JNIEXPORT void JNICALL
171 JVM_UnloadLibrary(void * handle);
172
173 JNIEXPORT void * JNICALL
174 JVM_FindLibraryEntry(void *handle, const char *name);
175
176 JNIEXPORT jboolean JNICALL
177 JVM_IsSupportedJNIVersion(jint version);
178
179 /*
180 * java.lang.Float and java.lang.Double
181 */
182 JNIEXPORT jboolean JNICALL
183 JVM_IsNaN(jdouble d);
184
185 /*
186 * java.lang.Throwable
187 */
188 JNIEXPORT void JNICALL
189 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
190
191 JNIEXPORT jint JNICALL
192 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
193
194 JNIEXPORT jobject JNICALL
195 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
196
197 /*
198 * java.lang.Compiler
199 */
200 JNIEXPORT void JNICALL
201 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
202
203 JNIEXPORT jboolean JNICALL
204 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
205
206 JNIEXPORT jboolean JNICALL
207 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
208
209 JNIEXPORT jboolean JNICALL
210 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
211
212 JNIEXPORT jobject JNICALL
213 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
214
215 JNIEXPORT void JNICALL
216 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
217
218 JNIEXPORT void JNICALL
219 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
220
221 /*
222 * java.lang.Thread
223 */
224 JNIEXPORT void JNICALL
225 JVM_StartThread(JNIEnv *env, jobject thread);
226
227 JNIEXPORT void JNICALL
228 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
229
230 JNIEXPORT jboolean JNICALL
231 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
232
233 JNIEXPORT void JNICALL
234 JVM_SuspendThread(JNIEnv *env, jobject thread);
235
236 JNIEXPORT void JNICALL
237 JVM_ResumeThread(JNIEnv *env, jobject thread);
238
239 JNIEXPORT void JNICALL
240 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
241
242 JNIEXPORT void JNICALL
243 JVM_Yield(JNIEnv *env, jclass threadClass);
244
245 JNIEXPORT void JNICALL
246 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
247
248 JNIEXPORT jobject JNICALL
249 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
250
251 JNIEXPORT jint JNICALL
252 JVM_CountStackFrames(JNIEnv *env, jobject thread);
253
254 JNIEXPORT void JNICALL
255 JVM_Interrupt(JNIEnv *env, jobject thread);
256
257 JNIEXPORT jboolean JNICALL
258 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
259
260 JNIEXPORT jboolean JNICALL
261 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
262
263 JNIEXPORT void JNICALL
264 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
265
266 JNIEXPORT jobjectArray JNICALL
267 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
268
269 JNIEXPORT void JNICALL
270 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
271
272 /* getStackTrace() and getAllStackTraces() method */
273 JNIEXPORT jobjectArray JNICALL
274 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
275
276 /*
277 * java.lang.SecurityManager
278 */
279 JNIEXPORT jclass JNICALL
280 JVM_CurrentLoadedClass(JNIEnv *env);
281
282 JNIEXPORT jobject JNICALL
283 JVM_CurrentClassLoader(JNIEnv *env);
284
285 JNIEXPORT jobjectArray JNICALL
286 JVM_GetClassContext(JNIEnv *env);
287
288 JNIEXPORT jint JNICALL
289 JVM_ClassDepth(JNIEnv *env, jstring name);
290
291 JNIEXPORT jint JNICALL
292 JVM_ClassLoaderDepth(JNIEnv *env);
293
294 /*
295 * java.lang.Package
296 */
297 JNIEXPORT jstring JNICALL
298 JVM_GetSystemPackage(JNIEnv *env, jstring name);
299
300 JNIEXPORT jobjectArray JNICALL
301 JVM_GetSystemPackages(JNIEnv *env);
302
303 /*
304 * java.io.ObjectInputStream
305 */
306 JNIEXPORT jobject JNICALL
307 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
308 jclass initClass);
309
310 JNIEXPORT jobject JNICALL
311 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
312 jint length);
313
314 JNIEXPORT jobject JNICALL
315 JVM_LatestUserDefinedLoader(JNIEnv *env);
316
317 /*
318 * This function has been deprecated and should not be considered
319 * part of the specified JVM interface.
320 */
321 JNIEXPORT jclass JNICALL
322 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
323 jstring currClassName);
324
325 /*
326 * java.lang.reflect.Array
327 */
328 JNIEXPORT jint JNICALL
329 JVM_GetArrayLength(JNIEnv *env, jobject arr);
330
331 JNIEXPORT jobject JNICALL
332 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
333
334 JNIEXPORT jvalue JNICALL
335 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
336
337 JNIEXPORT void JNICALL
338 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
339
340 JNIEXPORT void JNICALL
341 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
342 unsigned char vCode);
343
344 JNIEXPORT jobject JNICALL
345 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
346
347 JNIEXPORT jobject JNICALL
348 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
349
350 /*
351 * java.lang.Class and java.lang.ClassLoader
352 */
353
354 #define JVM_CALLER_DEPTH -1
355
356 /*
357 * Returns the immediate caller class of the native method invoking
358 * JVM_GetCallerClass. The Method.invoke and other frames due to
359 * reflection machinery are skipped.
360 *
361 * The depth parameter must be -1 (JVM_DEPTH). The caller is expected
362 * to be marked with sun.reflect.CallerSensitive. The JVM will throw
363 * an error if it is not marked propertly.
364 */
365 JNIEXPORT jclass JNICALL
366 JVM_GetCallerClass(JNIEnv *env, int depth);
367
368
369 /*
370 * Find primitive classes
371 * utf: class name
372 */
373 JNIEXPORT jclass JNICALL
374 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
375
376 /*
377 * Link the class
378 */
379 JNIEXPORT void JNICALL
380 JVM_ResolveClass(JNIEnv *env, jclass cls);
381
382 /*
383 * Find a class from a boot class loader. Returns NULL if class not found.
384 */
385 JNIEXPORT jclass JNICALL
386 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
387
388 /*
389 * Find a class from a given class loader. Throws ClassNotFoundException.
390 * name: name of class
391 * init: whether initialization is done
392 * loader: class loader to look up the class. This may not be the same as the caller's
393 * class loader.
394 * caller: initiating class. The initiating class may be null when a security
395 * manager is not installed.
396 */
397 JNIEXPORT jclass JNICALL
398 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
399 jobject loader, jclass caller);
400
401 /*
402 * Find a class from a given class loader. Throw ClassNotFoundException
403 * or NoClassDefFoundError depending on the value of the last
404 * argument.
405 */
406 JNIEXPORT jclass JNICALL
407 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
408 jobject loader, jboolean throwError);
409
410 /*
411 * Find a class from a given class.
412 */
413 JNIEXPORT jclass JNICALL
414 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
415 jclass from);
416
417 /* Find a loaded class cached by the VM */
418 JNIEXPORT jclass JNICALL
419 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
420
421 /* Define a class */
422 JNIEXPORT jclass JNICALL
423 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
424 jsize len, jobject pd);
425
426 /* Define a class with a source (added in JDK1.5) */
427 JNIEXPORT jclass JNICALL
428 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
429 const jbyte *buf, jsize len, jobject pd,
430 const char *source);
431
432 /*
433 * Reflection support functions
434 */
435
436 JNIEXPORT jstring JNICALL
437 JVM_GetClassName(JNIEnv *env, jclass cls);
438
439 JNIEXPORT jobjectArray JNICALL
440 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
441
442 JNIEXPORT jboolean JNICALL
443 JVM_IsInterface(JNIEnv *env, jclass cls);
444
445 JNIEXPORT jobjectArray JNICALL
446 JVM_GetClassSigners(JNIEnv *env, jclass cls);
447
448 JNIEXPORT void JNICALL
449 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
450
451 JNIEXPORT jobject JNICALL
452 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
453
454 JNIEXPORT jboolean JNICALL
455 JVM_IsArrayClass(JNIEnv *env, jclass cls);
456
457 JNIEXPORT jboolean JNICALL
458 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
459
460 JNIEXPORT jclass JNICALL
461 JVM_GetComponentType(JNIEnv *env, jclass cls);
462
463 JNIEXPORT jint JNICALL
464 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
465
466 JNIEXPORT jobjectArray JNICALL
467 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
468
469 JNIEXPORT jclass JNICALL
470 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
471
472 /* Generics support (JDK 1.5) */
473 JNIEXPORT jstring JNICALL
474 JVM_GetClassSignature(JNIEnv *env, jclass cls);
475
476 /* Annotations support (JDK 1.5) */
477 JNIEXPORT jbyteArray JNICALL
478 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
479
480 /* Type use annotations support (JDK 1.8) */
481
482 JNIEXPORT jbyteArray JNICALL
483 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
484
485 JNIEXPORT jbyteArray JNICALL
486 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
487
488 JNIEXPORT jbyteArray JNICALL
489 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
490
491 /*
492 * New (JDK 1.4) reflection implementation
493 */
494
495 JNIEXPORT jobjectArray JNICALL
496 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
497
498 JNIEXPORT jobjectArray JNICALL
499 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
500
501 JNIEXPORT jobjectArray JNICALL
502 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
503
504 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
505 This returns the access flags for the class as specified in the
506 class file rather than searching the InnerClasses attribute (if
507 present) to find the source-level access flags. Only the values of
508 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
509 valid. */
510 JNIEXPORT jint JNICALL
511 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
512
513 /* The following two reflection routines are still needed due to startup time issues */
514 /*
515 * java.lang.reflect.Method
516 */
517 JNIEXPORT jobject JNICALL
518 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
519
520 /*
521 * java.lang.reflect.Constructor
522 */
523 JNIEXPORT jobject JNICALL
524 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
525
526 /*
527 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
528 */
529
530 JNIEXPORT jobject JNICALL
531 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
532
533 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
534 (JNIEnv *env, jobject unused, jobject jcpool);
535
536 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
537 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
538
539 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
540 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
541
542 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
543 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
544
545 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
546 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
547
548 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
549 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
550
551 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
552 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
553
554 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
555 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
556
557 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
558 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
559
560 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
561 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
562
563 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
564 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
565
566 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
567 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
568
569 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
570 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
571
572 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
573 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
574
575 /*
576 * Parameter reflection
577 */
578
579 JNIEXPORT jobjectArray JNICALL
580 JVM_GetMethodParameters(JNIEnv *env, jobject method);
581
582 /*
583 * java.security.*
584 */
585
586 JNIEXPORT jobject JNICALL
587 JVM_DoPrivileged(JNIEnv *env, jclass cls,
588 jobject action, jobject context, jboolean wrapException);
589
590 JNIEXPORT jobject JNICALL
591 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
592
593 JNIEXPORT jobject JNICALL
594 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
595
596 /*
597 * Signal support, used to implement the shutdown sequence. Every VM must
598 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
599 * (^C) and the latter for external termination (kill, system shutdown, etc.).
600 * Other platform-dependent signal values may also be supported.
601 */
602
603 JNIEXPORT void * JNICALL
604 JVM_RegisterSignal(jint sig, void *handler);
605
606 JNIEXPORT jboolean JNICALL
607 JVM_RaiseSignal(jint sig);
608
609 JNIEXPORT jint JNICALL
610 JVM_FindSignal(const char *name);
611
612 /*
613 * Retrieve the assertion directives for the specified class.
614 */
615 JNIEXPORT jboolean JNICALL
616 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
617
618 /*
619 * Retrieve the assertion directives from the VM.
620 */
621 JNIEXPORT jobject JNICALL
622 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
623
624 /*
625 * java.util.concurrent.atomic.AtomicLong
626 */
627 JNIEXPORT jboolean JNICALL
628 JVM_SupportsCX8(void);
629
630 /*
631 * com.sun.dtrace.jsdt support
632 */
633
634 #define JVM_TRACING_DTRACE_VERSION 1
635
636 /*
637 * Structure to pass one probe description to JVM
638 */
639 typedef struct {
640 jmethodID method;
641 jstring function;
642 jstring name;
643 void* reserved[4]; // for future use
644 } JVM_DTraceProbe;
645
646 /**
647 * Encapsulates the stability ratings for a DTrace provider field
648 */
649 typedef struct {
650 jint nameStability;
651 jint dataStability;
652 jint dependencyClass;
653 } JVM_DTraceInterfaceAttributes;
654
655 /*
656 * Structure to pass one provider description to JVM
657 */
658 typedef struct {
659 jstring name;
660 JVM_DTraceProbe* probes;
661 jint probe_count;
662 JVM_DTraceInterfaceAttributes providerAttributes;
663 JVM_DTraceInterfaceAttributes moduleAttributes;
664 JVM_DTraceInterfaceAttributes functionAttributes;
665 JVM_DTraceInterfaceAttributes nameAttributes;
666 JVM_DTraceInterfaceAttributes argsAttributes;
667 void* reserved[4]; // for future use
668 } JVM_DTraceProvider;
669
670 /*
671 * Get the version number the JVM was built with
672 */
673 JNIEXPORT jint JNICALL
674 JVM_DTraceGetVersion(JNIEnv* env);
675
676 /*
677 * Register new probe with given signature, return global handle
678 *
679 * The version passed in is the version that the library code was
680 * built with.
681 */
682 JNIEXPORT jlong JNICALL
683 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
684 jint providers_count, JVM_DTraceProvider* providers);
685
686 /*
687 * Check JSDT probe
688 */
689 JNIEXPORT jboolean JNICALL
690 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
691
692 /*
693 * Destroy custom DOF
694 */
695 JNIEXPORT void JNICALL
696 JVM_DTraceDispose(JNIEnv* env, jlong activation_handle);
697
698 /*
699 * Check to see if DTrace is supported by OS
700 */
701 JNIEXPORT jboolean JNICALL
702 JVM_DTraceIsSupported(JNIEnv* env);
703
704 /*************************************************************************
705 PART 2: Support for the Verifier and Class File Format Checker
706 ************************************************************************/
707 /*
708 * Return the class name in UTF format. The result is valid
709 * until JVM_ReleaseUTf is called.
710 *
711 * The caller must treat the string as a constant and not modify it
712 * in any way.
713 */
714 JNIEXPORT const char * JNICALL
715 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
716
717 /*
718 * Returns the constant pool types in the buffer provided by "types."
719 */
720 JNIEXPORT void JNICALL
721 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
722
723 /*
724 * Returns the number of Constant Pool entries.
725 */
726 JNIEXPORT jint JNICALL
727 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
728
729 /*
730 * Returns the number of *declared* fields or methods.
731 */
732 JNIEXPORT jint JNICALL
733 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
734
735 JNIEXPORT jint JNICALL
736 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
737
738 /*
739 * Returns the CP indexes of exceptions raised by a given method.
740 * Places the result in the given buffer.
741 *
742 * The method is identified by method_index.
743 */
744 JNIEXPORT void JNICALL
745 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
746 unsigned short *exceptions);
747 /*
748 * Returns the number of exceptions raised by a given method.
749 * The method is identified by method_index.
750 */
751 JNIEXPORT jint JNICALL
752 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
753
754 /*
755 * Returns the byte code sequence 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_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
762 unsigned char *code);
763
764 /*
765 * Returns the length of the byte code sequence of a given method.
766 * The method is identified by method_index.
767 */
768 JNIEXPORT jint JNICALL
769 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
770
771 /*
772 * A structure used to a capture exception table entry in a Java method.
773 */
774 typedef struct {
775 jint start_pc;
776 jint end_pc;
777 jint handler_pc;
778 jint catchType;
779 } JVM_ExceptionTableEntryType;
780
781 /*
782 * Returns the exception table entry at entry_index of a given method.
783 * Places the result in the given buffer.
784 *
785 * The method is identified by method_index.
786 */
787 JNIEXPORT void JNICALL
788 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
789 jint entry_index,
790 JVM_ExceptionTableEntryType *entry);
791
792 /*
793 * Returns the length of the exception table of a given method.
794 * The method is identified by method_index.
795 */
796 JNIEXPORT jint JNICALL
797 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
798
799 /*
800 * Returns the modifiers of a given field.
801 * The field is identified by field_index.
802 */
803 JNIEXPORT jint JNICALL
804 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
805
806 /*
807 * Returns the modifiers of a given method.
808 * The method is identified by method_index.
809 */
810 JNIEXPORT jint JNICALL
811 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
812
813 /*
814 * Returns the number of local variables of a given method.
815 * The method is identified by method_index.
816 */
817 JNIEXPORT jint JNICALL
818 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
819
820 /*
821 * Returns the number of arguments (including this pointer) of a given method.
822 * The method is identified by method_index.
823 */
824 JNIEXPORT jint JNICALL
825 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
826
827 /*
828 * Returns the maximum amount of stack (in words) used by a given method.
829 * The method is identified by method_index.
830 */
831 JNIEXPORT jint JNICALL
832 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
833
834 /*
835 * Is a given method a constructor.
836 * The method is identified by method_index.
837 */
838 JNIEXPORT jboolean JNICALL
839 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
840
841 /*
842 * Is the given method generated by the VM.
843 * The method is identified by method_index.
844 */
845 JNIEXPORT jboolean JNICALL
846 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
847
848 /*
849 * Returns the name 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_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
857
858 /*
859 * Returns the signature of a given method in UTF format.
860 * The result remains valid until JVM_ReleaseUTF is called.
861 *
862 * The caller must treat the string as a constant and not modify it
863 * in any way.
864 */
865 JNIEXPORT const char * JNICALL
866 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
867
868 /*
869 * Returns the name of the field referred to at a given constant pool
870 * index.
871 *
872 * The result is in UTF format and remains valid until JVM_ReleaseUTF
873 * is called.
874 *
875 * The caller must treat the string as a constant and not modify it
876 * in any way.
877 */
878 JNIEXPORT const char * JNICALL
879 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
880
881 /*
882 * Returns the name of the method referred to at a given constant pool
883 * index.
884 *
885 * The result is in UTF format and remains valid until JVM_ReleaseUTF
886 * is called.
887 *
888 * The caller must treat the string as a constant and not modify it
889 * in any way.
890 */
891 JNIEXPORT const char * JNICALL
892 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
893
894 /*
895 * Returns the signature of the method referred to at a given constant pool
896 * index.
897 *
898 * The result is in UTF format and remains valid until JVM_ReleaseUTF
899 * is called.
900 *
901 * The caller must treat the string as a constant and not modify it
902 * in any way.
903 */
904 JNIEXPORT const char * JNICALL
905 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
906
907 /*
908 * Returns the signature of the field referred to at a given constant pool
909 * index.
910 *
911 * The result is in UTF format and remains valid until JVM_ReleaseUTF
912 * is called.
913 *
914 * The caller must treat the string as a constant and not modify it
915 * in any way.
916 */
917 JNIEXPORT const char * JNICALL
918 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
919
920 /*
921 * Returns the class name referred to at a given constant pool index.
922 *
923 * The result is in UTF format and remains valid until JVM_ReleaseUTF
924 * is called.
925 *
926 * The caller must treat the string as a constant and not modify it
927 * in any way.
928 */
929 JNIEXPORT const char * JNICALL
930 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
931
932 /*
933 * Returns the class name referred to at a given constant pool index.
934 *
935 * The constant pool entry must refer to a CONSTANT_Fieldref.
936 *
937 * The result is in UTF format and remains valid until JVM_ReleaseUTF
938 * is called.
939 *
940 * The caller must treat the string as a constant and not modify it
941 * in any way.
942 */
943 JNIEXPORT const char * JNICALL
944 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
945
946 /*
947 * Returns the class name referred to at a given constant pool index.
948 *
949 * The constant pool entry must refer to CONSTANT_Methodref or
950 * CONSTANT_InterfaceMethodref.
951 *
952 * The result is in UTF format and remains valid until JVM_ReleaseUTF
953 * is called.
954 *
955 * The caller must treat the string as a constant and not modify it
956 * in any way.
957 */
958 JNIEXPORT const char * JNICALL
959 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
960
961 /*
962 * Returns the modifiers of a field in calledClass. The field is
963 * referred to in class cb at constant pool entry index.
964 *
965 * The caller must treat the string as a constant and not modify it
966 * in any way.
967 *
968 * Returns -1 if the field does not exist in calledClass.
969 */
970 JNIEXPORT jint JNICALL
971 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
972
973 /*
974 * Returns the modifiers of a method in calledClass. The method is
975 * referred to in class cb at constant pool entry index.
976 *
977 * Returns -1 if the method does not exist in calledClass.
978 */
979 JNIEXPORT jint JNICALL
980 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
981
982 /*
983 * Releases the UTF string obtained from the VM.
984 */
985 JNIEXPORT void JNICALL
986 JVM_ReleaseUTF(const char *utf);
987
988 /*
989 * Compare if two classes are in the same package.
990 */
991 JNIEXPORT jboolean JNICALL
992 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
993
994 /* Get classfile constants */
995 #include "classfile_constants.h"
996
997 /*
998 * A function defined by the byte-code verifier and called by the VM.
999 * This is not a function implemented in the VM.
1000 *
1001 * Returns JNI_FALSE if verification fails. A detailed error message
1002 * will be places in msg_buf, whose length is specified by buf_len.
1003 */
1004 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1005 jclass cb,
1006 char * msg_buf,
1007 jint buf_len);
1008
1009
1010 /*
1011 * Support for a VM-independent class format checker.
1012 */
1013 typedef struct {
1014 unsigned long code; /* byte code */
1015 unsigned long excs; /* exceptions */
1016 unsigned long etab; /* catch table */
1017 unsigned long lnum; /* line number */
1018 unsigned long lvar; /* local vars */
1019 } method_size_info;
1020
1021 typedef struct {
1022 unsigned int constants; /* constant pool */
1023 unsigned int fields;
1024 unsigned int methods;
1025 unsigned int interfaces;
1026 unsigned int fields2; /* number of static 2-word fields */
1027 unsigned int innerclasses; /* # of records in InnerClasses attr */
1028
1029 method_size_info clinit; /* memory used in clinit */
1030 method_size_info main; /* used everywhere else */
1031 } class_size_info;
1032
1033 /*
1034 * Functions defined in libjava.so to perform string conversions.
1035 *
1036 */
1037
1038 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1039
1040 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1041
1042 /* This is the function defined in libjava.so that performs class
1043 * format checks. This functions fills in size information about
1044 * the class file and returns:
1045 *
1046 * 0: good
1047 * -1: out of memory
1048 * -2: bad format
1049 * -3: unsupported version
1050 * -4: bad class name
1051 */
1052
1053 typedef jint (*check_format_fn_t)(char *class_name,
1054 unsigned char *data,
1055 unsigned int data_size,
1056 class_size_info *class_size,
1057 char *message_buffer,
1058 jint buffer_length,
1059 jboolean measure_only,
1060 jboolean check_relaxed);
1061
1062 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1063 JVM_ACC_FINAL | \
1064 JVM_ACC_SUPER | \
1065 JVM_ACC_INTERFACE | \
1066 JVM_ACC_ABSTRACT | \
1067 JVM_ACC_ANNOTATION | \
1068 JVM_ACC_ENUM | \
1069 JVM_ACC_SYNTHETIC)
1070
1071 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1072 JVM_ACC_PRIVATE | \
1073 JVM_ACC_PROTECTED | \
1074 JVM_ACC_STATIC | \
1075 JVM_ACC_FINAL | \
1076 JVM_ACC_VOLATILE | \
1077 JVM_ACC_TRANSIENT | \
1078 JVM_ACC_ENUM | \
1079 JVM_ACC_SYNTHETIC)
1080
1081 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1082 JVM_ACC_PRIVATE | \
1083 JVM_ACC_PROTECTED | \
1084 JVM_ACC_STATIC | \
1085 JVM_ACC_FINAL | \
1086 JVM_ACC_SYNCHRONIZED | \
1087 JVM_ACC_BRIDGE | \
1088 JVM_ACC_VARARGS | \
1089 JVM_ACC_NATIVE | \
1090 JVM_ACC_ABSTRACT | \
1091 JVM_ACC_STRICT | \
1092 JVM_ACC_SYNTHETIC)
1093
1094 /*
1095 * This is the function defined in libjava.so to perform path
1096 * canonicalization. VM call this function before opening jar files
1097 * to load system classes.
1098 *
1099 */
1100
1101 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1102
1103 /*************************************************************************
1104 PART 3: I/O and Network Support
1105 ************************************************************************/
1106
1107 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1108 * when there is any kind of error. The caller can then use the
1109 * platform specific support (e.g., errno) to get the detailed
1110 * error info. The JVM_GetLastErrorString procedure may also be used
1111 * to obtain a descriptive error string.
1112 */
1113 #define JVM_IO_ERR (-1)
1114
1115 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1116 * operation has been disrupted by Thread.interrupt. There are a
1117 * number of technical difficulties related to interruptible IO that
1118 * need to be solved. For example, most existing programs do not handle
1119 * InterruptedIOExceptions specially, they simply treat those as any
1120 * IOExceptions, which typically indicate fatal errors.
1121 *
1122 * There are also two modes of operation for interruptible IO. In the
1123 * resumption mode, an interrupted IO operation is guaranteed not to
1124 * have any side-effects, and can be restarted. In the termination mode,
1125 * an interrupted IO operation corrupts the underlying IO stream, so
1126 * that the only reasonable operation on an interrupted stream is to
1127 * close that stream. The resumption mode seems to be impossible to
1128 * implement on Win32 and Solaris. Implementing the termination mode is
1129 * easier, but it's not clear that's the right semantics.
1130 *
1131 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1132 * using a compile-time flag on Solaris. Third-party JVM ports do not
1133 * need to implement interruptible IO.
1134 */
1135 #define JVM_IO_INTR (-2)
1136
1137 /* Write a string into the given buffer, in the platform's local encoding,
1138 * that describes the most recent system-level error to occur in this thread.
1139 * Return the length of the string or zero if no error occurred.
1140 */
1141 JNIEXPORT jint JNICALL
1142 JVM_GetLastErrorString(char *buf, int len);
1143
1144 /*
1145 * Convert a pathname into native format. This function does syntactic
1146 * cleanup, such as removing redundant separator characters. It modifies
1147 * the given pathname string in place.
1148 */
1149 JNIEXPORT char * JNICALL
1150 JVM_NativePath(char *);
1151
1152 /*
1153 * JVM I/O error codes
1154 */
1155 #define JVM_EEXIST -100
1156
1157 /*
1158 * Open a file descriptor. This function returns a negative error code
1159 * on error, and a non-negative integer that is the file descriptor on
1160 * success.
1161 */
1162 JNIEXPORT jint JNICALL
1163 JVM_Open(const char *fname, jint flags, jint mode);
1164
1165 /*
1166 * Close a file descriptor. This function returns -1 on error, and 0
1167 * on success.
1168 *
1169 * fd the file descriptor to close.
1170 */
1171 JNIEXPORT jint JNICALL
1172 JVM_Close(jint fd);
1173
1174 /*
1175 * Read data from a file decriptor into a char array.
1176 *
1177 * fd the file descriptor to read from.
1178 * buf the buffer where to put the read data.
1179 * nbytes the number of bytes to read.
1180 *
1181 * This function returns -1 on error, and 0 on success.
1182 */
1183 JNIEXPORT jint JNICALL
1184 JVM_Read(jint fd, char *buf, jint nbytes);
1185
1186 /*
1187 * Write data from a char array to a file decriptor.
1188 *
1189 * fd the file descriptor to read from.
1190 * buf the buffer from which to fetch the data.
1191 * nbytes the number of bytes to write.
1192 *
1193 * This function returns -1 on error, and 0 on success.
1194 */
1195 JNIEXPORT jint JNICALL
1196 JVM_Write(jint fd, char *buf, jint nbytes);
1197
1198 /*
1199 * Returns the number of bytes available for reading from a given file
1200 * descriptor
1201 */
1202 JNIEXPORT jint JNICALL
1203 JVM_Available(jint fd, jlong *pbytes);
1204
1205 /*
1206 * Move the file descriptor pointer from whence by offset.
1207 *
1208 * fd the file descriptor to move.
1209 * offset the number of bytes to move it by.
1210 * whence the start from where to move it.
1211 *
1212 * This function returns the resulting pointer location.
1213 */
1214 JNIEXPORT jlong JNICALL
1215 JVM_Lseek(jint fd, jlong offset, jint whence);
1216
1217 /*
1218 * Set the length of the file associated with the given descriptor to the given
1219 * length. If the new length is longer than the current length then the file
1220 * is extended; the contents of the extended portion are not defined. The
1221 * value of the file pointer is undefined after this procedure returns.
1222 */
1223 JNIEXPORT jint JNICALL
1224 JVM_SetLength(jint fd, jlong length);
1225
1226 /*
1227 * Synchronize the file descriptor's in memory state with that of the
1228 * physical device. Return of -1 is an error, 0 is OK.
1229 */
1230 JNIEXPORT jint JNICALL
1231 JVM_Sync(jint fd);
1232
1233 /*
1234 * Networking library support
1235 */
1236
1237 JNIEXPORT jint JNICALL
1238 JVM_InitializeSocketLibrary(void);
1239
1240 struct sockaddr;
1241
1242 JNIEXPORT jint JNICALL
1243 JVM_Socket(jint domain, jint type, jint protocol);
1244
1245 JNIEXPORT jint JNICALL
1246 JVM_SocketClose(jint fd);
1247
1248 JNIEXPORT jint JNICALL
1249 JVM_SocketShutdown(jint fd, jint howto);
1250
1251 JNIEXPORT jint JNICALL
1252 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1253
1254 JNIEXPORT jint JNICALL
1255 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1256
1257 JNIEXPORT jint JNICALL
1258 JVM_Timeout(int fd, long timeout);
1259
1260 JNIEXPORT jint JNICALL
1261 JVM_Listen(jint fd, jint count);
1262
1263 JNIEXPORT jint JNICALL
1264 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1265
1266 JNIEXPORT jint JNICALL
1267 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1268
1269 JNIEXPORT jint JNICALL
1270 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1271
1272 JNIEXPORT jint JNICALL
1273 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1274 int flags, struct sockaddr *from, int *fromlen);
1275
1276 JNIEXPORT jint JNICALL
1277 JVM_SendTo(jint fd, char *buf, int len,
1278 int flags, struct sockaddr *to, int tolen);
1279
1280 JNIEXPORT jint JNICALL
1281 JVM_SocketAvailable(jint fd, jint *result);
1282
1283
1284 JNIEXPORT jint JNICALL
1285 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1286
1287 JNIEXPORT jint JNICALL
1288 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1289
1290 JNIEXPORT jint JNICALL
1291 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1292
1293 JNIEXPORT int JNICALL
1294 JVM_GetHostName(char* name, int namelen);
1295
1296 /*
1297 * The standard printing functions supported by the Java VM. (Should they
1298 * be renamed to JVM_* in the future?
1299 */
1300
1301 /*
1302 * BE CAREFUL! The following functions do not implement the
1303 * full feature set of standard C printf formats.
1304 */
1305 int
1306 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1307
1308 int
1309 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1310
1311 int
1312 jio_fprintf(FILE *, const char *fmt, ...);
1313
1314 int
1315 jio_vfprintf(FILE *, const char *fmt, va_list args);
1316
1317
1318 JNIEXPORT void * JNICALL
1319 JVM_RawMonitorCreate(void);
1320
1321 JNIEXPORT void JNICALL
1322 JVM_RawMonitorDestroy(void *mon);
1323
1324 JNIEXPORT jint JNICALL
1325 JVM_RawMonitorEnter(void *mon);
1326
1327 JNIEXPORT void JNICALL
1328 JVM_RawMonitorExit(void *mon);
1329
1330 /*
1331 * java.lang.management support
1332 */
1333 JNIEXPORT void* JNICALL
1334 JVM_GetManagement(jint version);
1335
1336 /*
1337 * com.sun.tools.attach.VirtualMachine support
1338 *
1339 * Initialize the agent properties with the properties maintained in the VM.
1340 */
1341 JNIEXPORT jobject JNICALL
1342 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1343
1344 JNIEXPORT jstring JNICALL
1345 JVM_GetTemporaryDirectory(JNIEnv *env);
1346
1347 /* Generics reflection support.
1348 *
1349 * Returns information about the given class's EnclosingMethod
1350 * attribute, if present, or null if the class had no enclosing
1351 * method.
1352 *
1353 * If non-null, the returned array contains three elements. Element 0
1354 * is the java.lang.Class of which the enclosing method is a member,
1355 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1356 * method's name and descriptor, respectively.
1357 */
1358 JNIEXPORT jobjectArray JNICALL
1359 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1360
1361 /*
1362 * Java thread state support
1363 */
1364 enum {
1365 JAVA_THREAD_STATE_NEW = 0,
1366 JAVA_THREAD_STATE_RUNNABLE = 1,
1367 JAVA_THREAD_STATE_BLOCKED = 2,
1368 JAVA_THREAD_STATE_WAITING = 3,
1369 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1370 JAVA_THREAD_STATE_TERMINATED = 5,
1371 JAVA_THREAD_STATE_COUNT = 6
1372 };
1373
1374 /*
1375 * Returns an array of the threadStatus values representing the
1376 * given Java thread state. Returns NULL if the VM version is
1377 * incompatible with the JDK or doesn't support the given
1378 * Java thread state.
1379 */
1380 JNIEXPORT jintArray JNICALL
1381 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1382
1383 /*
1384 * Returns an array of the substate names representing the
1385 * given Java thread state. Returns NULL if the VM version is
1386 * incompatible with the JDK or the VM doesn't support
1387 * the given Java thread state.
1388 * values must be the jintArray returned from JVM_GetThreadStateValues
1389 * and javaThreadState.
1390 */
1391 JNIEXPORT jobjectArray JNICALL
1392 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1393
1394 /* =========================================================================
1395 * The following defines a private JVM interface that the JDK can query
1396 * for the JVM version and capabilities. sun.misc.Version defines
1397 * the methods for getting the VM version and its capabilities.
1398 *
1399 * When a new bit is added, the following should be updated to provide
1400 * access to the new capability:
1401 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1402 * SDK: Version class
1403 *
1404 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1405 * JVM to query for the JDK version and capabilities.
1406 *
1407 * When a new bit is added, the following should be updated to provide
1408 * access to the new capability:
1409 * HS: JDK_Version class
1410 * SDK: JDK_GetVersionInfo0
1411 *
1412 * ==========================================================================
1413 */
1414 typedef struct {
1415 /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */
1416 unsigned int jvm_version; /* Consists of major, minor, micro (n.n.n) */
1417 /* and build number (xx) */
1418 unsigned int update_version : 8; /* Update release version (uu) */
1419 unsigned int special_update_version : 8; /* Special update release version (c)*/
1420 unsigned int reserved1 : 16;
1421 unsigned int reserved2;
1422
1423 /* The following bits represents JVM supports that JDK has dependency on.
1424 * JDK can use these bits to determine which JVM version
1425 * and support it has to maintain runtime compatibility.
1426 *
1427 * When a new bit is added in a minor or update release, make sure
1428 * the new bit is also added in the main/baseline.
1429 */
1430 unsigned int is_attach_supported : 1;
1431 unsigned int : 31;
1432 unsigned int : 32;
1433 unsigned int : 32;
1434 } jvm_version_info;
1435
1436 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1437 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1438 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1439
1440 /* Build number is available only for RE builds.
1441 * It will be zero for internal builds.
1442 */
1443 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1444
1445 JNIEXPORT void JNICALL
1446 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1447
1448 typedef struct {
1449 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1450 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1451 /* and build number (xx) */
1452 unsigned int update_version : 8; /* Update release version (uu) */
1453 unsigned int special_update_version : 8; /* Special update release version (c)*/
1454 unsigned int reserved1 : 16;
1455 unsigned int reserved2;
1456
1457 /* The following bits represents new JDK supports that VM has dependency on.
1458 * VM implementation can use these bits to determine which JDK version
1459 * and support it has to maintain runtime compatibility.
1460 *
1461 * When a new bit is added in a minor or update release, make sure
1462 * the new bit is also added in the main/baseline.
1463 */
1464 unsigned int thread_park_blocker : 1;
1465 unsigned int post_vm_init_hook_enabled : 1;
1466 unsigned int pending_list_uses_discovered_field : 1;
1467 unsigned int : 29;
1468 unsigned int : 32;
1469 unsigned int : 32;
1470 } jdk_version_info;
1471
1472 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1473 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1474 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1475
1476 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1477 * It will be zero for internal builds.
1478 */
1479 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1480
1481 /*
1482 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1483 * that is dynamically looked up by JVM.
1484 */
1485 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1486
1487 /*
1488 * This structure is used by the launcher to get the default thread
1489 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1490 * version of 1.1. As it is not supported otherwise, it has been removed
1491 * from jni.h
1492 */
1493 typedef struct JDK1_1InitArgs {
1494 jint version;
1495
1496 char **properties;
1497 jint checkSource;
1498 jint nativeStackSize;
1499 jint javaStackSize;
1500 jint minHeapSize;
1501 jint maxHeapSize;
1502 jint verifyMode;
1503 char *classpath;
1504
1505 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1506 void (JNICALL *exit)(jint code);
1507 void (JNICALL *abort)(void);
1508
1509 jint enableClassGC;
1510 jint enableVerboseGC;
1511 jint disableAsyncGC;
1512 jint verbose;
1513 jboolean debugging;
1514 jint debugPort;
1515 } JDK1_1InitArgs;
1516
1517
1518 #ifdef __cplusplus
1519 } /* extern "C" */
1520
1521 #endif /* __cplusplus */
1522
1523 #endif /* !_JAVASOFT_JVM_H_ */