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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  * Returns true if the JVM's lookup cache indicates that this class is
1396  * known to NOT exist for the given loader.
1397  */
1398 JNIEXPORT jboolean JNICALL
1399 JVM_KnownToNotExist(JNIEnv *env, jobject loader, const char *classname);
1400 
1401 /*
1402  * Returns an array of all URLs that are stored in the JVM's lookup cache
1403  * for the given loader. NULL if the lookup cache is unavailable.
1404  */
1405 JNIEXPORT jobjectArray JNICALL
1406 JVM_GetResourceLookupCacheURLs(JNIEnv *env, jobject loader);
1407 
1408 /*
1409  * Returns an array of all URLs that *may* contain the resource_name for the
1410  * given loader. This function returns an integer array, each element
1411  * of which can be used to index into the array returned by
1412  * JVM_GetResourceLookupCacheURLs of the same loader to determine the
1413  * URLs.
1414  */
1415 JNIEXPORT jintArray JNICALL
1416 JVM_GetResourceLookupCache(JNIEnv *env, jobject loader, const char *resource_name);
1417 
1418 
1419 /* =========================================================================
1420  * The following defines a private JVM interface that the JDK can query
1421  * for the JVM version and capabilities.  sun.misc.Version defines
1422  * the methods for getting the VM version and its capabilities.
1423  *
1424  * When a new bit is added, the following should be updated to provide
1425  * access to the new capability:
1426  *    HS:   JVM_GetVersionInfo and Abstract_VM_Version class
1427  *    SDK:  Version class
1428  *
1429  * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1430  * JVM to query for the JDK version and capabilities.
1431  *
1432  * When a new bit is added, the following should be updated to provide
1433  * access to the new capability:
1434  *    HS:   JDK_Version class
1435  *    SDK:  JDK_GetVersionInfo0
1436  *
1437  * ==========================================================================
1438  */
1439 typedef struct {
1440     /* Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx */
1441     unsigned int jvm_version;   /* Consists of major, minor, micro (n.n.n) */
1442                                 /* and build number (xx) */
1443     unsigned int update_version : 8;         /* Update release version (uu) */
1444     unsigned int special_update_version : 8; /* Special update release version (c)*/
1445     unsigned int reserved1 : 16;
1446     unsigned int reserved2;
1447 
1448     /* The following bits represents JVM supports that JDK has dependency on.
1449      * JDK can use these bits to determine which JVM version
1450      * and support it has to maintain runtime compatibility.
1451      *
1452      * When a new bit is added in a minor or update release, make sure
1453      * the new bit is also added in the main/baseline.
1454      */
1455     unsigned int is_attach_supported : 1;
1456     unsigned int : 31;
1457     unsigned int : 32;
1458     unsigned int : 32;
1459 } jvm_version_info;
1460 
1461 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1462 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1463 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1464 
1465 /* Build number is available only for RE builds.
1466  * It will be zero for internal builds.
1467  */
1468 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1469 
1470 JNIEXPORT void JNICALL
1471 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1472 
1473 typedef struct {
1474     // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1475     unsigned int jdk_version;   /* Consists of major, minor, micro (n.n.n) */
1476                                 /* and build number (xx) */
1477     unsigned int update_version : 8;         /* Update release version (uu) */
1478     unsigned int special_update_version : 8; /* Special update release version (c)*/
1479     unsigned int reserved1 : 16;
1480     unsigned int reserved2;
1481 
1482     /* The following bits represents new JDK supports that VM has dependency on.
1483      * VM implementation can use these bits to determine which JDK version
1484      * and support it has to maintain runtime compatibility.
1485      *
1486      * When a new bit is added in a minor or update release, make sure
1487      * the new bit is also added in the main/baseline.
1488      */
1489     unsigned int thread_park_blocker : 1;
1490     unsigned int post_vm_init_hook_enabled : 1;
1491     unsigned int pending_list_uses_discovered_field : 1;
1492     unsigned int : 29;
1493     unsigned int : 32;
1494     unsigned int : 32;
1495 } jdk_version_info;
1496 
1497 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1498 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1499 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1500 
1501 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1502  * It will be zero for internal builds.
1503  */
1504 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1505 
1506 /*
1507  * This is the function JDK_GetVersionInfo0 defined in libjava.so
1508  * that is dynamically looked up by JVM.
1509  */
1510 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1511 
1512 /*
1513  * This structure is used by the launcher to get the default thread
1514  * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1515  * version of 1.1.  As it is not supported otherwise, it has been removed
1516  * from jni.h
1517  */
1518 typedef struct JDK1_1InitArgs {
1519     jint version;
1520 
1521     char **properties;
1522     jint checkSource;
1523     jint nativeStackSize;
1524     jint javaStackSize;
1525     jint minHeapSize;
1526     jint maxHeapSize;
1527     jint verifyMode;
1528     char *classpath;
1529 
1530     jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1531     void (JNICALL *exit)(jint code);
1532     void (JNICALL *abort)(void);
1533 
1534     jint enableClassGC;
1535     jint enableVerboseGC;
1536     jint disableAsyncGC;
1537     jint verbose;
1538     jboolean debugging;
1539     jint debugPort;
1540 } JDK1_1InitArgs;
1541 
1542 
1543 #ifdef __cplusplus
1544 } /* extern "C" */
1545 
1546 #endif /* __cplusplus */
1547 
1548 #endif /* !_JAVASOFT_JVM_H_ */
1549