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