1 /*
2 * Copyright (c) 1997, 2011, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_PRIMS_JVM_H
26 #define SHARE_VM_PRIMS_JVM_H
27
28 #include "prims/jni.h"
29 #ifdef TARGET_OS_FAMILY_linux
30 # include "jvm_linux.h"
31 #endif
32 #ifdef TARGET_OS_FAMILY_solaris
33 # include "jvm_solaris.h"
34 #endif
35 #ifdef TARGET_OS_FAMILY_windows
36 # include "jvm_windows.h"
37 #endif
38 #ifdef TARGET_OS_FAMILY_bsd
39 # include "jvm_bsd.h"
40 #endif
41
42 #ifndef _JAVASOFT_JVM_H_
43 #define _JAVASOFT_JVM_H_
44
45 // HotSpot integration note:
46 //
47 // This file and jvm.h used with the JDK are identical,
48 // except for the three includes removed below
49
50 // #include <sys/stat.h>
51 // #include "jni.h"
52 // #include "jvm_md.h"
53
54
55 #ifdef __cplusplus
56 extern "C" {
57 #endif
58
59 /*
60 * This file contains additional functions exported from the VM.
61 * These functions are complementary to the standard JNI support.
62 * There are three parts to this file:
63 *
64 * First, this file contains the VM-related functions needed by native
65 * libraries in the standard Java API. For example, the java.lang.Object
66 * class needs VM-level functions that wait for and notify monitors.
67 *
68 * Second, this file contains the functions and constant definitions
69 * needed by the byte code verifier and class file format checker.
70 * These functions allow the verifier and format checker to be written
71 * in a VM-independent way.
72 *
73 * Third, this file contains various I/O and nerwork operations needed
74 * by the standard Java I/O and network APIs.
75 */
76
77 /*
78 * Bump the version number when either of the following happens:
79 *
80 * 1. There is a change in JVM_* functions.
81 *
82 * 2. There is a change in the contract between VM and Java classes.
83 * For example, if the VM relies on a new private field in Thread
84 * class.
85 */
86
87 #define JVM_INTERFACE_VERSION 4
88
89
90 JNIEXPORT jint JNICALL
91 JVM_GetInterfaceVersion(void);
92
93 /*************************************************************************
94 PART 1: Functions for Native Libraries
95 ************************************************************************/
96 /*
97 * java.lang.Object
98 */
99 JNIEXPORT jint JNICALL
100 JVM_IHashCode(JNIEnv *env, jobject obj);
101
102 JNIEXPORT void JNICALL
103 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
104
105 JNIEXPORT void JNICALL
106 JVM_MonitorNotify(JNIEnv *env, jobject obj);
107
108 JNIEXPORT void JNICALL
109 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
110
111 JNIEXPORT jobject JNICALL
112 JVM_Clone(JNIEnv *env, jobject obj);
113
114 /*
115 * java.lang.String
116 */
117 JNIEXPORT jstring JNICALL
118 JVM_InternString(JNIEnv *env, jstring str);
119
120 /*
121 * java.lang.System
122 */
123 JNIEXPORT jlong JNICALL
124 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
125
126 JNIEXPORT jlong JNICALL
127 JVM_NanoTime(JNIEnv *env, jclass ignored);
128
129 JNIEXPORT void JNICALL
130 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
131 jobject dst, jint dst_pos, jint length);
132
133 JNIEXPORT jobject JNICALL
134 JVM_InitProperties(JNIEnv *env, jobject p);
135
136 /*
137 * java.io.File
138 */
139 JNIEXPORT void JNICALL
140 JVM_OnExit(void (*func)(void));
141
142 /*
143 * java.lang.Runtime
144 */
145 JNIEXPORT void JNICALL
146 JVM_Exit(jint code);
147
148 JNIEXPORT void JNICALL
149 JVM_Halt(jint code);
150
151 JNIEXPORT void JNICALL
152 JVM_GC(void);
153
154 /* Returns the number of real-time milliseconds that have elapsed since the
155 * least-recently-inspected heap object was last inspected by the garbage
156 * collector.
157 *
158 * For simple stop-the-world collectors this value is just the time
159 * since the most recent collection. For generational collectors it is the
160 * time since the oldest generation was most recently collected. Other
161 * collectors are free to return a pessimistic estimate of the elapsed time, or
162 * simply the time since the last full collection was performed.
163 *
164 * Note that in the presence of reference objects, a given object that is no
165 * longer strongly reachable may have to be inspected multiple times before it
166 * can be reclaimed.
167 */
168 JNIEXPORT jlong JNICALL
169 JVM_MaxObjectInspectionAge(void);
170
171 JNIEXPORT void JNICALL
172 JVM_TraceInstructions(jboolean on);
173
174 JNIEXPORT void JNICALL
175 JVM_TraceMethodCalls(jboolean on);
176
177 JNIEXPORT jlong JNICALL
178 JVM_TotalMemory(void);
179
180 JNIEXPORT jlong JNICALL
181 JVM_FreeMemory(void);
182
183 JNIEXPORT jlong JNICALL
184 JVM_MaxMemory(void);
185
186 JNIEXPORT jint JNICALL
187 JVM_ActiveProcessorCount(void);
188
189 JNIEXPORT void * JNICALL
190 JVM_LoadLibrary(const char *name);
191
192 JNIEXPORT void JNICALL
193 JVM_UnloadLibrary(void * handle);
194
195 JNIEXPORT void * JNICALL
196 JVM_FindLibraryEntry(void *handle, const char *name);
197
198 JNIEXPORT jboolean JNICALL
199 JVM_IsSupportedJNIVersion(jint version);
200
201 /*
202 * java.lang.Float and java.lang.Double
203 */
204 JNIEXPORT jboolean JNICALL
205 JVM_IsNaN(jdouble d);
206
207 /*
208 * java.lang.Throwable
209 */
210 JNIEXPORT void JNICALL
211 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
212
213 JNIEXPORT void JNICALL
214 JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable);
215
216 JNIEXPORT jint JNICALL
217 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
218
219 JNIEXPORT jobject JNICALL
220 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
221
222 /*
223 * java.lang.Compiler
224 */
225 JNIEXPORT void JNICALL
226 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
227
228 JNIEXPORT jboolean JNICALL
229 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
230
231 JNIEXPORT jboolean JNICALL
232 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
233
234 JNIEXPORT jboolean JNICALL
235 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
236
237 JNIEXPORT jobject JNICALL
238 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
239
240 JNIEXPORT void JNICALL
241 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
242
243 JNIEXPORT void JNICALL
244 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
245
246 /*
247 * java.lang.Thread
248 */
249 JNIEXPORT void JNICALL
250 JVM_StartThread(JNIEnv *env, jobject thread);
251
252 JNIEXPORT void JNICALL
253 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
254
255 JNIEXPORT jboolean JNICALL
256 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
257
258 JNIEXPORT void JNICALL
259 JVM_SuspendThread(JNIEnv *env, jobject thread);
260
261 JNIEXPORT void JNICALL
262 JVM_ResumeThread(JNIEnv *env, jobject thread);
263
264 JNIEXPORT void JNICALL
265 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
266
267 JNIEXPORT void JNICALL
268 JVM_Yield(JNIEnv *env, jclass threadClass);
269
270 JNIEXPORT void JNICALL
271 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
272
273 JNIEXPORT jobject JNICALL
274 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
275
276 JNIEXPORT jint JNICALL
277 JVM_CountStackFrames(JNIEnv *env, jobject thread);
278
279 JNIEXPORT void JNICALL
280 JVM_Interrupt(JNIEnv *env, jobject thread);
281
282 JNIEXPORT jboolean JNICALL
283 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
284
285 JNIEXPORT jboolean JNICALL
286 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
287
288 JNIEXPORT void JNICALL
289 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
290
291 JNIEXPORT jobjectArray JNICALL
292 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
293
294 /* getStackTrace() and getAllStackTraces() method */
295 JNIEXPORT jobjectArray JNICALL
296 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
297
298 /*
299 * java.lang.SecurityManager
300 */
301 JNIEXPORT jclass JNICALL
302 JVM_CurrentLoadedClass(JNIEnv *env);
303
304 JNIEXPORT jobject JNICALL
305 JVM_CurrentClassLoader(JNIEnv *env);
306
307 JNIEXPORT jobjectArray JNICALL
308 JVM_GetClassContext(JNIEnv *env);
309
310 JNIEXPORT jint JNICALL
311 JVM_ClassDepth(JNIEnv *env, jstring name);
312
313 JNIEXPORT jint JNICALL
314 JVM_ClassLoaderDepth(JNIEnv *env);
315
316 /*
317 * java.lang.Package
318 */
319 JNIEXPORT jstring JNICALL
320 JVM_GetSystemPackage(JNIEnv *env, jstring name);
321
322 JNIEXPORT jobjectArray JNICALL
323 JVM_GetSystemPackages(JNIEnv *env);
324
325 /*
326 * java.io.ObjectInputStream
327 */
328 JNIEXPORT jobject JNICALL
329 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
330 jclass initClass);
331
332 JNIEXPORT jobject JNICALL
333 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
334 jint length);
335
336 JNIEXPORT jobject JNICALL
337 JVM_LatestUserDefinedLoader(JNIEnv *env);
338
339 /*
340 * This function has been deprecated and should not be considered
341 * part of the specified JVM interface.
342 */
343 JNIEXPORT jclass JNICALL
344 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
345 jstring currClassName);
346
347 /*
348 * java.lang.reflect.Array
349 */
350 JNIEXPORT jint JNICALL
351 JVM_GetArrayLength(JNIEnv *env, jobject arr);
352
353 JNIEXPORT jobject JNICALL
354 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
355
356 JNIEXPORT jvalue JNICALL
357 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
358
359 JNIEXPORT void JNICALL
360 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
361
362 JNIEXPORT void JNICALL
363 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
364 unsigned char vCode);
365
366 JNIEXPORT jobject JNICALL
367 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
368
369 JNIEXPORT jobject JNICALL
370 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
371
372 /*
373 * java.lang.Class and java.lang.ClassLoader
374 */
375 /*
376 * Returns the class in which the code invoking the native method
377 * belongs.
378 *
379 * Note that in JDK 1.1, native methods did not create a frame.
380 * In 1.2, they do. Therefore native methods like Class.forName
381 * can no longer look at the current frame for the caller class.
382 */
383 JNIEXPORT jclass JNICALL
384 JVM_GetCallerClass(JNIEnv *env, int n);
385
386 /*
387 * Find primitive classes
388 * utf: class name
389 */
390 JNIEXPORT jclass JNICALL
391 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
392
393 /*
394 * Link the class
395 */
396 JNIEXPORT void JNICALL
397 JVM_ResolveClass(JNIEnv *env, jclass cls);
398
399 /*
400 * Find a class from a given class loader. Throw ClassNotFoundException
401 * or NoClassDefFoundError depending on the value of the last
402 * argument.
403 */
404 JNIEXPORT jclass JNICALL
405 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
406 jobject loader, jboolean throwError);
407
408 /*
409 * Find a class from a boot class loader. Returns NULL if class not found.
410 */
411 JNIEXPORT jclass JNICALL
412 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
413
414 /*
415 * Find a class from a given class.
416 */
417 JNIEXPORT jclass JNICALL
418 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
419 jclass from);
420
421 /* Find a loaded class cached by the VM */
422 JNIEXPORT jclass JNICALL
423 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
424
425 /* Define a class */
426 JNIEXPORT jclass JNICALL
427 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
428 jsize len, jobject pd);
429
430 /* Define a class with a source (added in JDK1.5) */
431 JNIEXPORT jclass JNICALL
432 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
433 const jbyte *buf, jsize len, jobject pd,
434 const char *source);
435
436 /* Define a class with a source with conditional verification (added HSX 14)
437 * -Xverify:all will verify anyway, -Xverify:none will not verify,
438 * -Xverify:remote (default) will obey this conditional
439 * i.e. true = should_verify_class
440 */
441 JNIEXPORT jclass JNICALL
442 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
443 jobject loader, const jbyte *buf,
444 jsize len, jobject pd, const char *source,
445 jboolean verify);
446
447 /*
448 * Reflection support functions
449 */
450
451 JNIEXPORT jstring JNICALL
452 JVM_GetClassName(JNIEnv *env, jclass cls);
453
454 JNIEXPORT jobjectArray JNICALL
455 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
456
457 JNIEXPORT jobject JNICALL
458 JVM_GetClassLoader(JNIEnv *env, jclass cls);
459
460 JNIEXPORT jboolean JNICALL
461 JVM_IsInterface(JNIEnv *env, jclass cls);
462
463 JNIEXPORT jobjectArray JNICALL
464 JVM_GetClassSigners(JNIEnv *env, jclass cls);
465
466 JNIEXPORT void JNICALL
467 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
468
469 JNIEXPORT jobject JNICALL
470 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
471
472 JNIEXPORT void JNICALL
473 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
474
475 JNIEXPORT jboolean JNICALL
476 JVM_IsArrayClass(JNIEnv *env, jclass cls);
477
478 JNIEXPORT jboolean JNICALL
479 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
480
481 JNIEXPORT jclass JNICALL
482 JVM_GetComponentType(JNIEnv *env, jclass cls);
483
484 JNIEXPORT jint JNICALL
485 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
486
487 JNIEXPORT jobjectArray JNICALL
488 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
489
490 JNIEXPORT jclass JNICALL
491 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
492
493 /* Generics support (JDK 1.5) */
494 JNIEXPORT jstring JNICALL
495 JVM_GetClassSignature(JNIEnv *env, jclass cls);
496
497 /* Annotations support (JDK 1.5) */
498 JNIEXPORT jbyteArray JNICALL
499 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
500
501 /* Annotations support (JDK 1.6) */
502
503 // field is a handle to a java.lang.reflect.Field object
504 JNIEXPORT jbyteArray JNICALL
505 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
506
507 // method is a handle to a java.lang.reflect.Method object
508 JNIEXPORT jbyteArray JNICALL
509 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
510
511 // method is a handle to a java.lang.reflect.Method object
512 JNIEXPORT jbyteArray JNICALL
513 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
514
515 // method is a handle to a java.lang.reflect.Method object
516 JNIEXPORT jbyteArray JNICALL
517 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
518
519
520 /*
521 * New (JDK 1.4) reflection implementation
522 */
523
524 JNIEXPORT jobjectArray JNICALL
525 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
526
527 JNIEXPORT jobjectArray JNICALL
528 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
529
530 JNIEXPORT jobjectArray JNICALL
531 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
532
533 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
534 This returns the access flags for the class as specified in the
535 class file rather than searching the InnerClasses attribute (if
536 present) to find the source-level access flags. Only the values of
537 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
538 valid. */
539 JNIEXPORT jint JNICALL
540 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
541
542 /*
543 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
544 */
545
546 JNIEXPORT jobject JNICALL
547 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
548
549 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
550 (JNIEnv *env, jobject unused, jobject jcpool);
551
552 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
553 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
554
555 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
556 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
557
558 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
559 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
560
561 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
562 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
563
564 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
565 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
566
567 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
568 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
569
570 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
571 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
572
573 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
574 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
575
576 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
577 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
578
579 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
580 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
581
582 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
583 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
584
585 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
586 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
587
588 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
589 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
590
591 /*
592 * java.security.*
593 */
594
595 JNIEXPORT jobject JNICALL
596 JVM_DoPrivileged(JNIEnv *env, jclass cls,
597 jobject action, jobject context, jboolean wrapException);
598
599 JNIEXPORT jobject JNICALL
600 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
601
602 JNIEXPORT jobject JNICALL
603 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
604
605 /*
606 * Signal support, used to implement the shutdown sequence. Every VM must
607 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
608 * (^C) and the latter for external termination (kill, system shutdown, etc.).
609 * Other platform-dependent signal values may also be supported.
610 */
611
612 JNIEXPORT void * JNICALL
613 JVM_RegisterSignal(jint sig, void *handler);
614
615 JNIEXPORT jboolean JNICALL
616 JVM_RaiseSignal(jint sig);
617
618 JNIEXPORT jint JNICALL
619 JVM_FindSignal(const char *name);
620
621 /*
622 * Retrieve the assertion directives for the specified class.
623 */
624 JNIEXPORT jboolean JNICALL
625 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
626
627 /*
628 * Retrieve the assertion directives from the VM.
629 */
630 JNIEXPORT jobject JNICALL
631 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
632
633 /*
634 * sun.misc.AtomicLong
635 */
636 JNIEXPORT jboolean JNICALL
637 JVM_SupportsCX8(void);
638
639 JNIEXPORT jboolean JNICALL
640 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
641
642 /*
643 * com.sun.dtrace.jsdt support
644 */
645
646 #define JVM_TRACING_DTRACE_VERSION 1
647
648 /*
649 * Structure to pass one probe description to JVM.
650 *
651 * The VM will overwrite the definition of the referenced method with
652 * code that will fire the probe.
653 */
654 typedef struct {
655 jmethodID method;
656 jstring function;
657 jstring name;
658 void* reserved[4]; // for future use
659 } JVM_DTraceProbe;
660
661 /**
662 * Encapsulates the stability ratings for a DTrace provider field
663 */
664 typedef struct {
665 jint nameStability;
666 jint dataStability;
667 jint dependencyClass;
668 } JVM_DTraceInterfaceAttributes;
669
670 /*
671 * Structure to pass one provider description to JVM
672 */
673 typedef struct {
674 jstring name;
675 JVM_DTraceProbe* probes;
676 jint probe_count;
677 JVM_DTraceInterfaceAttributes providerAttributes;
678 JVM_DTraceInterfaceAttributes moduleAttributes;
679 JVM_DTraceInterfaceAttributes functionAttributes;
680 JVM_DTraceInterfaceAttributes nameAttributes;
681 JVM_DTraceInterfaceAttributes argsAttributes;
682 void* reserved[4]; // for future use
683 } JVM_DTraceProvider;
684
685 /*
686 * Get the version number the JVM was built with
687 */
688 JNIEXPORT jint JNICALL
689 JVM_DTraceGetVersion(JNIEnv* env);
690
691 /*
692 * Register new probe with given signature, return global handle
693 *
694 * The version passed in is the version that the library code was
695 * built with.
696 */
697 JNIEXPORT jlong JNICALL
698 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
699 jint providers_count, JVM_DTraceProvider* providers);
700
701 /*
702 * Check JSDT probe
703 */
704 JNIEXPORT jboolean JNICALL
705 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
706
707 /*
708 * Destroy custom DOF
709 */
710 JNIEXPORT void JNICALL
711 JVM_DTraceDispose(JNIEnv* env, jlong handle);
712
713 /*
714 * Check to see if DTrace is supported by OS
715 */
716 JNIEXPORT jboolean JNICALL
717 JVM_DTraceIsSupported(JNIEnv* env);
718
719 /*************************************************************************
720 PART 2: Support for the Verifier and Class File Format Checker
721 ************************************************************************/
722 /*
723 * Return the class name in UTF format. The result is valid
724 * until JVM_ReleaseUTf is called.
725 *
726 * The caller must treat the string as a constant and not modify it
727 * in any way.
728 */
729 JNIEXPORT const char * JNICALL
730 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
731
732 /*
733 * Returns the constant pool types in the buffer provided by "types."
734 */
735 JNIEXPORT void JNICALL
736 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
737
738 /*
739 * Returns the number of Constant Pool entries.
740 */
741 JNIEXPORT jint JNICALL
742 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
743
744 /*
745 * Returns the number of *declared* fields or methods.
746 */
747 JNIEXPORT jint JNICALL
748 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
749
750 JNIEXPORT jint JNICALL
751 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
752
753 /*
754 * Returns the CP indexes of exceptions raised by a given method.
755 * Places the result in the given buffer.
756 *
757 * The method is identified by method_index.
758 */
759 JNIEXPORT void JNICALL
760 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
761 unsigned short *exceptions);
762 /*
763 * Returns the number of exceptions raised by a given method.
764 * The method is identified by method_index.
765 */
766 JNIEXPORT jint JNICALL
767 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
768
769 /*
770 * Returns the byte code sequence of a given method.
771 * Places the result in the given buffer.
772 *
773 * The method is identified by method_index.
774 */
775 JNIEXPORT void JNICALL
776 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
777 unsigned char *code);
778
779 /*
780 * Returns the length of the byte code sequence of a given method.
781 * The method is identified by method_index.
782 */
783 JNIEXPORT jint JNICALL
784 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
785
786 /*
787 * A structure used to a capture exception table entry in a Java method.
788 */
789 typedef struct {
790 jint start_pc;
791 jint end_pc;
792 jint handler_pc;
793 jint catchType;
794 } JVM_ExceptionTableEntryType;
795
796 /*
797 * Returns the exception table entry at entry_index of a given method.
798 * Places the result in the given buffer.
799 *
800 * The method is identified by method_index.
801 */
802 JNIEXPORT void JNICALL
803 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
804 jint entry_index,
805 JVM_ExceptionTableEntryType *entry);
806
807 /*
808 * Returns the length of the exception table of a given method.
809 * The method is identified by method_index.
810 */
811 JNIEXPORT jint JNICALL
812 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
813
814 /*
815 * Returns the modifiers of a given field.
816 * The field is identified by field_index.
817 */
818 JNIEXPORT jint JNICALL
819 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
820
821 /*
822 * Returns the modifiers of a given method.
823 * The method is identified by method_index.
824 */
825 JNIEXPORT jint JNICALL
826 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
827
828 /*
829 * Returns the number of local variables of a given method.
830 * The method is identified by method_index.
831 */
832 JNIEXPORT jint JNICALL
833 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
834
835 /*
836 * Returns the number of arguments (including this pointer) of a given method.
837 * The method is identified by method_index.
838 */
839 JNIEXPORT jint JNICALL
840 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
841
842 /*
843 * Returns the maximum amount of stack (in words) used by a given method.
844 * The method is identified by method_index.
845 */
846 JNIEXPORT jint JNICALL
847 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
848
849 /*
850 * Is a given method a constructor.
851 * The method is identified by method_index.
852 */
853 JNIEXPORT jboolean JNICALL
854 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
855
856 /*
857 * Returns the name of a given method in UTF format.
858 * The result remains valid until JVM_ReleaseUTF 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_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
865
866 /*
867 * Returns the signature of a given method in UTF format.
868 * The result remains valid until JVM_ReleaseUTF is called.
869 *
870 * The caller must treat the string as a constant and not modify it
871 * in any way.
872 */
873 JNIEXPORT const char * JNICALL
874 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
875
876 /*
877 * Returns the name of the field refered to at a given constant pool
878 * index.
879 *
880 * The result is in UTF format and remains valid until JVM_ReleaseUTF
881 * is called.
882 *
883 * The caller must treat the string as a constant and not modify it
884 * in any way.
885 */
886 JNIEXPORT const char * JNICALL
887 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
888
889 /*
890 * Returns the name of the method refered to at a given constant pool
891 * index.
892 *
893 * The result is in UTF format and remains valid until JVM_ReleaseUTF
894 * is called.
895 *
896 * The caller must treat the string as a constant and not modify it
897 * in any way.
898 */
899 JNIEXPORT const char * JNICALL
900 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
901
902 /*
903 * Returns the signature of the method refered to at a given constant pool
904 * index.
905 *
906 * The result is in UTF format and remains valid until JVM_ReleaseUTF
907 * is called.
908 *
909 * The caller must treat the string as a constant and not modify it
910 * in any way.
911 */
912 JNIEXPORT const char * JNICALL
913 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
914
915 /*
916 * Returns the signature of the field refered to at a given constant pool
917 * index.
918 *
919 * The result is in UTF format and remains valid until JVM_ReleaseUTF
920 * is called.
921 *
922 * The caller must treat the string as a constant and not modify it
923 * in any way.
924 */
925 JNIEXPORT const char * JNICALL
926 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
927
928 /*
929 * Returns the class name refered to at a given constant pool index.
930 *
931 * The result is in UTF format and remains valid until JVM_ReleaseUTF
932 * is called.
933 *
934 * The caller must treat the string as a constant and not modify it
935 * in any way.
936 */
937 JNIEXPORT const char * JNICALL
938 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
939
940 /*
941 * Returns the class name refered to at a given constant pool index.
942 *
943 * The constant pool entry must refer to a CONSTANT_Fieldref.
944 *
945 * The result is in UTF format and remains valid until JVM_ReleaseUTF
946 * is called.
947 *
948 * The caller must treat the string as a constant and not modify it
949 * in any way.
950 */
951 JNIEXPORT const char * JNICALL
952 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
953
954 /*
955 * Returns the class name refered to at a given constant pool index.
956 *
957 * The constant pool entry must refer to CONSTANT_Methodref or
958 * CONSTANT_InterfaceMethodref.
959 *
960 * The result is in UTF format and remains valid until JVM_ReleaseUTF
961 * is called.
962 *
963 * The caller must treat the string as a constant and not modify it
964 * in any way.
965 */
966 JNIEXPORT const char * JNICALL
967 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
968
969 /*
970 * Returns the modifiers of a field in calledClass. The field is
971 * referred to in class cb at constant pool entry index.
972 *
973 * The caller must treat the string as a constant and not modify it
974 * in any way.
975 *
976 * Returns -1 if the field does not exist in calledClass.
977 */
978 JNIEXPORT jint JNICALL
979 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
980
981 /*
982 * Returns the modifiers of a method in calledClass. The method is
983 * referred to in class cb at constant pool entry index.
984 *
985 * Returns -1 if the method does not exist in calledClass.
986 */
987 JNIEXPORT jint JNICALL
988 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
989
990 /*
991 * Releases the UTF string obtained from the VM.
992 */
993 JNIEXPORT void JNICALL
994 JVM_ReleaseUTF(const char *utf);
995
996 /*
997 * Compare if two classes are in the same package.
998 */
999 JNIEXPORT jboolean JNICALL
1000 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1001
1002 /* Constants in class files */
1003
1004 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
1005 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
1006 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
1007 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
1008 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
1009 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
1010 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
1011 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
1012 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
1013 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1014 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1015 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1016 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1017 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1018 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1019 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1020 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1021 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1022
1023 #define JVM_ACC_PUBLIC_BIT 0
1024 #define JVM_ACC_PRIVATE_BIT 1
1025 #define JVM_ACC_PROTECTED_BIT 2
1026 #define JVM_ACC_STATIC_BIT 3
1027 #define JVM_ACC_FINAL_BIT 4
1028 #define JVM_ACC_SYNCHRONIZED_BIT 5
1029 #define JVM_ACC_SUPER_BIT 5
1030 #define JVM_ACC_VOLATILE_BIT 6
1031 #define JVM_ACC_BRIDGE_BIT 6
1032 #define JVM_ACC_TRANSIENT_BIT 7
1033 #define JVM_ACC_VARARGS_BIT 7
1034 #define JVM_ACC_NATIVE_BIT 8
1035 #define JVM_ACC_INTERFACE_BIT 9
1036 #define JVM_ACC_ABSTRACT_BIT 10
1037 #define JVM_ACC_STRICT_BIT 11
1038 #define JVM_ACC_SYNTHETIC_BIT 12
1039 #define JVM_ACC_ANNOTATION_BIT 13
1040 #define JVM_ACC_ENUM_BIT 14
1041
1042 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1043 enum {
1044 JVM_CONSTANT_Utf8 = 1,
1045 JVM_CONSTANT_Unicode, /* unused */
1046 JVM_CONSTANT_Integer,
1047 JVM_CONSTANT_Float,
1048 JVM_CONSTANT_Long,
1049 JVM_CONSTANT_Double,
1050 JVM_CONSTANT_Class,
1051 JVM_CONSTANT_String,
1052 JVM_CONSTANT_Fieldref,
1053 JVM_CONSTANT_Methodref,
1054 JVM_CONSTANT_InterfaceMethodref,
1055 JVM_CONSTANT_NameAndType,
1056 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1057 JVM_CONSTANT_MethodType = 16, // JSR 292
1058 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1059 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1060 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
1061 };
1062
1063 /* JVM_CONSTANT_MethodHandle subtypes */
1064 enum {
1065 JVM_REF_getField = 1,
1066 JVM_REF_getStatic = 2,
1067 JVM_REF_putField = 3,
1068 JVM_REF_putStatic = 4,
1069 JVM_REF_invokeVirtual = 5,
1070 JVM_REF_invokeStatic = 6,
1071 JVM_REF_invokeSpecial = 7,
1072 JVM_REF_newInvokeSpecial = 8,
1073 JVM_REF_invokeInterface = 9
1074 };
1075
1076 /* Used in the newarray instruction. */
1077
1078 #define JVM_T_BOOLEAN 4
1079 #define JVM_T_CHAR 5
1080 #define JVM_T_FLOAT 6
1081 #define JVM_T_DOUBLE 7
1082 #define JVM_T_BYTE 8
1083 #define JVM_T_SHORT 9
1084 #define JVM_T_INT 10
1085 #define JVM_T_LONG 11
1086
1087 /* JVM method signatures */
1088
1089 #define JVM_SIGNATURE_ARRAY '['
1090 #define JVM_SIGNATURE_BYTE 'B'
1091 #define JVM_SIGNATURE_CHAR 'C'
1092 #define JVM_SIGNATURE_CLASS 'L'
1093 #define JVM_SIGNATURE_ENDCLASS ';'
1094 #define JVM_SIGNATURE_ENUM 'E'
1095 #define JVM_SIGNATURE_FLOAT 'F'
1096 #define JVM_SIGNATURE_DOUBLE 'D'
1097 #define JVM_SIGNATURE_FUNC '('
1098 #define JVM_SIGNATURE_ENDFUNC ')'
1099 #define JVM_SIGNATURE_INT 'I'
1100 #define JVM_SIGNATURE_LONG 'J'
1101 #define JVM_SIGNATURE_SHORT 'S'
1102 #define JVM_SIGNATURE_VOID 'V'
1103 #define JVM_SIGNATURE_BOOLEAN 'Z'
1104
1105 /*
1106 * A function defined by the byte-code verifier and called by the VM.
1107 * This is not a function implemented in the VM.
1108 *
1109 * Returns JNI_FALSE if verification fails. A detailed error message
1110 * will be places in msg_buf, whose length is specified by buf_len.
1111 */
1112 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1113 jclass cb,
1114 char * msg_buf,
1115 jint buf_len);
1116
1117
1118 /*
1119 * Support for a VM-independent class format checker.
1120 */
1121 typedef struct {
1122 unsigned long code; /* byte code */
1123 unsigned long excs; /* exceptions */
1124 unsigned long etab; /* catch table */
1125 unsigned long lnum; /* line number */
1126 unsigned long lvar; /* local vars */
1127 } method_size_info;
1128
1129 typedef struct {
1130 unsigned int constants; /* constant pool */
1131 unsigned int fields;
1132 unsigned int methods;
1133 unsigned int interfaces;
1134 unsigned int fields2; /* number of static 2-word fields */
1135 unsigned int innerclasses; /* # of records in InnerClasses attr */
1136
1137 method_size_info clinit; /* memory used in clinit */
1138 method_size_info main; /* used everywhere else */
1139 } class_size_info;
1140
1141 /*
1142 * Functions defined in libjava.so to perform string conversions.
1143 *
1144 */
1145
1146 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1147
1148 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1149
1150 /* This is the function defined in libjava.so that performs class
1151 * format checks. This functions fills in size information about
1152 * the class file and returns:
1153 *
1154 * 0: good
1155 * -1: out of memory
1156 * -2: bad format
1157 * -3: unsupported version
1158 * -4: bad class name
1159 */
1160
1161 typedef jint (*check_format_fn_t)(char *class_name,
1162 unsigned char *data,
1163 unsigned int data_size,
1164 class_size_info *class_size,
1165 char *message_buffer,
1166 jint buffer_length,
1167 jboolean measure_only,
1168 jboolean check_relaxed);
1169
1170 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1171 JVM_ACC_FINAL | \
1172 JVM_ACC_SUPER | \
1173 JVM_ACC_INTERFACE | \
1174 JVM_ACC_ABSTRACT | \
1175 JVM_ACC_ANNOTATION | \
1176 JVM_ACC_ENUM | \
1177 JVM_ACC_SYNTHETIC)
1178
1179 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1180 JVM_ACC_PRIVATE | \
1181 JVM_ACC_PROTECTED | \
1182 JVM_ACC_STATIC | \
1183 JVM_ACC_FINAL | \
1184 JVM_ACC_VOLATILE | \
1185 JVM_ACC_TRANSIENT | \
1186 JVM_ACC_ENUM | \
1187 JVM_ACC_SYNTHETIC)
1188
1189 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1190 JVM_ACC_PRIVATE | \
1191 JVM_ACC_PROTECTED | \
1192 JVM_ACC_STATIC | \
1193 JVM_ACC_FINAL | \
1194 JVM_ACC_SYNCHRONIZED | \
1195 JVM_ACC_BRIDGE | \
1196 JVM_ACC_VARARGS | \
1197 JVM_ACC_NATIVE | \
1198 JVM_ACC_ABSTRACT | \
1199 JVM_ACC_STRICT | \
1200 JVM_ACC_SYNTHETIC)
1201
1202 /*
1203 * This is the function defined in libjava.so to perform path
1204 * canonicalization. VM call this function before opening jar files
1205 * to load system classes.
1206 *
1207 */
1208
1209 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1210
1211 /*************************************************************************
1212 PART 3: I/O and Network Support
1213 ************************************************************************/
1214
1215 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1216 * when there is any kind of error. The caller can then use the
1217 * platform specific support (e.g., errno) to get the detailed
1218 * error info. The JVM_GetLastErrorString procedure may also be used
1219 * to obtain a descriptive error string.
1220 */
1221 #define JVM_IO_ERR (-1)
1222
1223 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1224 * operation has been disrupted by Thread.interrupt. There are a
1225 * number of technical difficulties related to interruptible IO that
1226 * need to be solved. For example, most existing programs do not handle
1227 * InterruptedIOExceptions specially, they simply treat those as any
1228 * IOExceptions, which typically indicate fatal errors.
1229 *
1230 * There are also two modes of operation for interruptible IO. In the
1231 * resumption mode, an interrupted IO operation is guaranteed not to
1232 * have any side-effects, and can be restarted. In the termination mode,
1233 * an interrupted IO operation corrupts the underlying IO stream, so
1234 * that the only reasonable operation on an interrupted stream is to
1235 * close that stream. The resumption mode seems to be impossible to
1236 * implement on Win32 and Solaris. Implementing the termination mode is
1237 * easier, but it's not clear that's the right semantics.
1238 *
1239 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1240 * using a compile-time flag on Solaris. Third-party JVM ports do not
1241 * need to implement interruptible IO.
1242 */
1243 #define JVM_IO_INTR (-2)
1244
1245 /* Write a string into the given buffer, in the platform's local encoding,
1246 * that describes the most recent system-level error to occur in this thread.
1247 * Return the length of the string or zero if no error occurred.
1248 */
1249 JNIEXPORT jint JNICALL
1250 JVM_GetLastErrorString(char *buf, int len);
1251
1252 /*
1253 * Convert a pathname into native format. This function does syntactic
1254 * cleanup, such as removing redundant separator characters. It modifies
1255 * the given pathname string in place.
1256 */
1257 JNIEXPORT char * JNICALL
1258 JVM_NativePath(char *);
1259
1260 /*
1261 * JVM I/O error codes
1262 */
1263 #define JVM_EEXIST -100
1264
1265 /*
1266 * Open a file descriptor. This function returns a negative error code
1267 * on error, and a non-negative integer that is the file descriptor on
1268 * success.
1269 */
1270 JNIEXPORT jint JNICALL
1271 JVM_Open(const char *fname, jint flags, jint mode);
1272
1273 /*
1274 * Close a file descriptor. This function returns -1 on error, and 0
1275 * on success.
1276 *
1277 * fd the file descriptor to close.
1278 */
1279 JNIEXPORT jint JNICALL
1280 JVM_Close(jint fd);
1281
1282 /*
1283 * Read data from a file decriptor into a char array.
1284 *
1285 * fd the file descriptor to read from.
1286 * buf the buffer where to put the read data.
1287 * nbytes the number of bytes to read.
1288 *
1289 * This function returns -1 on error, and 0 on success.
1290 */
1291 JNIEXPORT jint JNICALL
1292 JVM_Read(jint fd, char *buf, jint nbytes);
1293
1294 /*
1295 * Write data from a char array to a file decriptor.
1296 *
1297 * fd the file descriptor to read from.
1298 * buf the buffer from which to fetch the data.
1299 * nbytes the number of bytes to write.
1300 *
1301 * This function returns -1 on error, and 0 on success.
1302 */
1303 JNIEXPORT jint JNICALL
1304 JVM_Write(jint fd, char *buf, jint nbytes);
1305
1306 /*
1307 * Returns the number of bytes available for reading from a given file
1308 * descriptor
1309 */
1310 JNIEXPORT jint JNICALL
1311 JVM_Available(jint fd, jlong *pbytes);
1312
1313 /*
1314 * Move the file descriptor pointer from whence by offset.
1315 *
1316 * fd the file descriptor to move.
1317 * offset the number of bytes to move it by.
1318 * whence the start from where to move it.
1319 *
1320 * This function returns the resulting pointer location.
1321 */
1322 JNIEXPORT jlong JNICALL
1323 JVM_Lseek(jint fd, jlong offset, jint whence);
1324
1325 /*
1326 * Set the length of the file associated with the given descriptor to the given
1327 * length. If the new length is longer than the current length then the file
1328 * is extended; the contents of the extended portion are not defined. The
1329 * value of the file pointer is undefined after this procedure returns.
1330 */
1331 JNIEXPORT jint JNICALL
1332 JVM_SetLength(jint fd, jlong length);
1333
1334 /*
1335 * Synchronize the file descriptor's in memory state with that of the
1336 * physical device. Return of -1 is an error, 0 is OK.
1337 */
1338 JNIEXPORT jint JNICALL
1339 JVM_Sync(jint fd);
1340
1341 /*
1342 * Networking library support
1343 */
1344
1345 JNIEXPORT jint JNICALL
1346 JVM_InitializeSocketLibrary(void);
1347
1348 struct sockaddr;
1349
1350 JNIEXPORT jint JNICALL
1351 JVM_Socket(jint domain, jint type, jint protocol);
1352
1353 JNIEXPORT jint JNICALL
1354 JVM_SocketClose(jint fd);
1355
1356 JNIEXPORT jint JNICALL
1357 JVM_SocketShutdown(jint fd, jint howto);
1358
1359 JNIEXPORT jint JNICALL
1360 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1361
1362 JNIEXPORT jint JNICALL
1363 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1364
1365 JNIEXPORT jint JNICALL
1366 JVM_Timeout(int fd, long timeout);
1367
1368 JNIEXPORT jint JNICALL
1369 JVM_Listen(jint fd, jint count);
1370
1371 JNIEXPORT jint JNICALL
1372 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1373
1374 JNIEXPORT jint JNICALL
1375 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1376
1377 JNIEXPORT jint JNICALL
1378 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1379
1380 JNIEXPORT jint JNICALL
1381 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1382 int flags, struct sockaddr *from, int *fromlen);
1383
1384 JNIEXPORT jint JNICALL
1385 JVM_SendTo(jint fd, char *buf, int len,
1386 int flags, struct sockaddr *to, int tolen);
1387
1388 JNIEXPORT jint JNICALL
1389 JVM_SocketAvailable(jint fd, jint *result);
1390
1391
1392 JNIEXPORT jint JNICALL
1393 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1394
1395 JNIEXPORT jint JNICALL
1396 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1397
1398 JNIEXPORT jint JNICALL
1399 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1400
1401 JNIEXPORT int JNICALL
1402 JVM_GetHostName(char* name, int namelen);
1403
1404 /*
1405 * The standard printing functions supported by the Java VM. (Should they
1406 * be renamed to JVM_* in the future?
1407 */
1408
1409 /*
1410 * BE CAREFUL! The following functions do not implement the
1411 * full feature set of standard C printf formats.
1412 */
1413 JNIEXPORT int
1414 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1415
1416 JNIEXPORT int
1417 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1418
1419 JNIEXPORT int
1420 jio_fprintf(FILE *, const char *fmt, ...);
1421
1422 JNIEXPORT int
1423 jio_vfprintf(FILE *, const char *fmt, va_list args);
1424
1425
1426 JNIEXPORT void * JNICALL
1427 JVM_RawMonitorCreate(void);
1428
1429 JNIEXPORT void JNICALL
1430 JVM_RawMonitorDestroy(void *mon);
1431
1432 JNIEXPORT jint JNICALL
1433 JVM_RawMonitorEnter(void *mon);
1434
1435 JNIEXPORT void JNICALL
1436 JVM_RawMonitorExit(void *mon);
1437
1438 /*
1439 * java.lang.reflect.Method
1440 */
1441 JNIEXPORT jobject JNICALL
1442 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1443
1444 /*
1445 * java.lang.reflect.Constructor
1446 */
1447 JNIEXPORT jobject JNICALL
1448 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1449
1450 /*
1451 * java.lang.management support
1452 */
1453 JNIEXPORT void* JNICALL
1454 JVM_GetManagement(jint version);
1455
1456 /*
1457 * com.sun.tools.attach.VirtualMachine support
1458 *
1459 * Initialize the agent properties with the properties maintained in the VM.
1460 */
1461 JNIEXPORT jobject JNICALL
1462 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1463
1464 /* Generics reflection support.
1465 *
1466 * Returns information about the given class's EnclosingMethod
1467 * attribute, if present, or null if the class had no enclosing
1468 * method.
1469 *
1470 * If non-null, the returned array contains three elements. Element 0
1471 * is the java.lang.Class of which the enclosing method is a member,
1472 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1473 * method's name and descriptor, respectively.
1474 */
1475 JNIEXPORT jobjectArray JNICALL
1476 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1477
1478 /*
1479 * Java thread state support
1480 */
1481 enum {
1482 JAVA_THREAD_STATE_NEW = 0,
1483 JAVA_THREAD_STATE_RUNNABLE = 1,
1484 JAVA_THREAD_STATE_BLOCKED = 2,
1485 JAVA_THREAD_STATE_WAITING = 3,
1486 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1487 JAVA_THREAD_STATE_TERMINATED = 5,
1488 JAVA_THREAD_STATE_COUNT = 6
1489 };
1490
1491 /*
1492 * Returns an array of the threadStatus values representing the
1493 * given Java thread state. Returns NULL if the VM version is
1494 * incompatible with the JDK or doesn't support the given
1495 * Java thread state.
1496 */
1497 JNIEXPORT jintArray JNICALL
1498 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1499
1500 /*
1501 * Returns an array of the substate names representing the
1502 * given Java thread state. Returns NULL if the VM version is
1503 * incompatible with the JDK or the VM doesn't support
1504 * the given Java thread state.
1505 * values must be the jintArray returned from JVM_GetThreadStateValues
1506 * and javaThreadState.
1507 */
1508 JNIEXPORT jobjectArray JNICALL
1509 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1510
1511 /* =========================================================================
1512 * The following defines a private JVM interface that the JDK can query
1513 * for the JVM version and capabilities. sun.misc.Version defines
1514 * the methods for getting the VM version and its capabilities.
1515 *
1516 * When a new bit is added, the following should be updated to provide
1517 * access to the new capability:
1518 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1519 * SDK: Version class
1520 *
1521 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1522 * JVM to query for the JDK version and capabilities.
1523 *
1524 * When a new bit is added, the following should be updated to provide
1525 * access to the new capability:
1526 * HS: JDK_Version class
1527 * SDK: JDK_GetVersionInfo0
1528 *
1529 * ==========================================================================
1530 */
1531 typedef struct {
1532 /* HotSpot Express VM version string:
1533 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1534 */
1535 unsigned int jvm_version; /* Consists of major.minor.0.build */
1536 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1537 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1538 unsigned int reserved1 : 16;
1539 unsigned int reserved2;
1540
1541 /* The following bits represents JVM supports that JDK has dependency on.
1542 * JDK can use these bits to determine which JVM version
1543 * and support it has to maintain runtime compatibility.
1544 *
1545 * When a new bit is added in a minor or update release, make sure
1546 * the new bit is also added in the main/baseline.
1547 */
1548 unsigned int is_attachable : 1;
1549 unsigned int is_kernel_jvm : 1;
1550 unsigned int : 30;
1551 unsigned int : 32;
1552 unsigned int : 32;
1553 } jvm_version_info;
1554
1555 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1556 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1557 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1558 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1559 /* Build number is available in all HotSpot Express VM builds.
1560 * It is defined in make/hotspot_version file.
1561 */
1562 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1563
1564 JNIEXPORT void JNICALL
1565 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1566
1567 typedef struct {
1568 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1569 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1570 /* and build number (xx) */
1571 unsigned int update_version : 8; /* Update release version (uu) */
1572 unsigned int special_update_version : 8; /* Special update release version (c)*/
1573 unsigned int reserved1 : 16;
1574 unsigned int reserved2;
1575
1576 /* The following bits represents new JDK supports that VM has dependency on.
1577 * VM implementation can use these bits to determine which JDK version
1578 * and support it has to maintain runtime compatibility.
1579 *
1580 * When a new bit is added in a minor or update release, make sure
1581 * the new bit is also added in the main/baseline.
1582 */
1583 unsigned int thread_park_blocker : 1;
1584 unsigned int post_vm_init_hook_enabled : 1;
1585 unsigned int pending_list_uses_discovered_field : 1;
1586 unsigned int : 29;
1587 unsigned int : 32;
1588 unsigned int : 32;
1589 } jdk_version_info;
1590
1591 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1592 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1593 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1594
1595 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1596 * It will be zero for internal builds.
1597 */
1598 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1599
1600 /*
1601 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1602 * that is dynamically looked up by JVM.
1603 */
1604 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1605
1606 /*
1607 * This structure is used by the launcher to get the default thread
1608 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1609 * version of 1.1. As it is not supported otherwise, it has been removed
1610 * from jni.h
1611 */
1612 typedef struct JDK1_1InitArgs {
1613 jint version;
1614
1615 char **properties;
1616 jint checkSource;
1617 jint nativeStackSize;
1618 jint javaStackSize;
1619 jint minHeapSize;
1620 jint maxHeapSize;
1621 jint verifyMode;
1622 char *classpath;
1623
1624 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1625 void (JNICALL *exit)(jint code);
1626 void (JNICALL *abort)(void);
1627
1628 jint enableClassGC;
1629 jint enableVerboseGC;
1630 jint disableAsyncGC;
1631 jint verbose;
1632 jboolean debugging;
1633 jint debugPort;
1634 } JDK1_1InitArgs;
1635
1636 #ifdef __cplusplus
1637 } /* extern "C" */
1638 #endif /* __cplusplus */
1639
1640 #endif /* !_JAVASOFT_JVM_H_ */
1641
1642 #endif // SHARE_VM_PRIMS_JVM_H