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.
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_aix
39 # include "jvm_aix.h"
40 #endif
41 #ifdef TARGET_OS_FAMILY_bsd
42 # include "jvm_bsd.h"
43 #endif
44
45 #ifndef _JAVASOFT_JVM_H_
46 #define _JAVASOFT_JVM_H_
47
48 // HotSpot integration note:
49 //
50 // This file and jvm.h used with the JDK are identical,
51 // except for the three includes removed below
52
53 // #include <sys/stat.h>
54 // #include "jni.h"
55 // #include "jvm_md.h"
56
57
58 #ifdef __cplusplus
59 extern "C" {
60 #endif
61
62 /*
63 * This file contains additional functions exported from the VM.
64 * These functions are complementary to the standard JNI support.
65 * There are three parts to this file:
66 *
67 * First, this file contains the VM-related functions needed by native
68 * libraries in the standard Java API. For example, the java.lang.Object
69 * class needs VM-level functions that wait for and notify monitors.
70 *
71 * Second, this file contains the functions and constant definitions
72 * needed by the byte code verifier and class file format checker.
73 * These functions allow the verifier and format checker to be written
74 * in a VM-independent way.
75 *
76 * Third, this file contains various I/O and nerwork operations needed
77 * by the standard Java I/O and network APIs.
78 */
79
80 /*
81 * Bump the version number when either of the following happens:
82 *
83 * 1. There is a change in JVM_* functions.
84 *
85 * 2. There is a change in the contract between VM and Java classes.
86 * For example, if the VM relies on a new private field in Thread
87 * class.
88 */
89
90 #define JVM_INTERFACE_VERSION 4
91
92 JNIEXPORT jobjectArray JNICALL
93 JVM_GetMethodParameters(JNIEnv *env, jobject method);
94
95 JNIEXPORT jint JNICALL
96 JVM_GetInterfaceVersion(void);
97
98 /*************************************************************************
99 PART 1: Functions for Native Libraries
100 ************************************************************************/
101 /*
102 * java.lang.Object
103 */
104 JNIEXPORT jint JNICALL
105 JVM_IHashCode(JNIEnv *env, jobject obj);
106
107 JNIEXPORT void JNICALL
108 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
109
110 JNIEXPORT void JNICALL
111 JVM_MonitorNotify(JNIEnv *env, jobject obj);
112
113 JNIEXPORT void JNICALL
114 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
115
116 JNIEXPORT jobject JNICALL
117 JVM_Clone(JNIEnv *env, jobject obj);
118
119 /*
120 * java.lang.String
121 */
122 JNIEXPORT jstring JNICALL
123 JVM_InternString(JNIEnv *env, jstring str);
124
125 /*
126 * java.lang.System
127 */
128 JNIEXPORT jlong JNICALL
129 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
130
131 JNIEXPORT jlong JNICALL
132 JVM_NanoTime(JNIEnv *env, jclass ignored);
133
134 JNIEXPORT void JNICALL
135 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
136 jobject dst, jint dst_pos, jint length);
137
138 JNIEXPORT jobject JNICALL
139 JVM_InitProperties(JNIEnv *env, jobject p);
140
141 /*
142 * java.io.File
143 */
144 JNIEXPORT void JNICALL
145 JVM_OnExit(void (*func)(void));
146
147 /*
148 * java.lang.Runtime
149 */
150 JNIEXPORT void JNICALL
151 JVM_Exit(jint code);
152
153 JNIEXPORT void JNICALL
154 JVM_Halt(jint code);
155
156 JNIEXPORT void JNICALL
157 JVM_GC(void);
158
159 /* Returns the number of real-time milliseconds that have elapsed since the
160 * least-recently-inspected heap object was last inspected by the garbage
161 * collector.
162 *
163 * For simple stop-the-world collectors this value is just the time
164 * since the most recent collection. For generational collectors it is the
165 * time since the oldest generation was most recently collected. Other
166 * collectors are free to return a pessimistic estimate of the elapsed time, or
167 * simply the time since the last full collection was performed.
168 *
169 * Note that in the presence of reference objects, a given object that is no
170 * longer strongly reachable may have to be inspected multiple times before it
171 * can be reclaimed.
172 */
173 JNIEXPORT jlong JNICALL
174 JVM_MaxObjectInspectionAge(void);
175
176 JNIEXPORT void JNICALL
177 JVM_TraceInstructions(jboolean on);
178
179 JNIEXPORT void JNICALL
180 JVM_TraceMethodCalls(jboolean on);
181
182 JNIEXPORT jlong JNICALL
183 JVM_TotalMemory(void);
184
185 JNIEXPORT jlong JNICALL
186 JVM_FreeMemory(void);
187
188 JNIEXPORT jlong JNICALL
189 JVM_MaxMemory(void);
190
191 JNIEXPORT jint JNICALL
192 JVM_ActiveProcessorCount(void);
193
194 JNIEXPORT void * JNICALL
195 JVM_LoadLibrary(const char *name);
196
197 JNIEXPORT void JNICALL
198 JVM_UnloadLibrary(void * handle);
199
200 JNIEXPORT void * JNICALL
201 JVM_FindLibraryEntry(void *handle, const char *name);
202
203 JNIEXPORT jboolean JNICALL
204 JVM_IsSupportedJNIVersion(jint version);
205
206 /*
207 * java.lang.Float and java.lang.Double
208 */
209 JNIEXPORT jboolean JNICALL
210 JVM_IsNaN(jdouble d);
211
212 /*
213 * java.lang.Throwable
214 */
215 JNIEXPORT void JNICALL
216 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
217
218 JNIEXPORT jint JNICALL
219 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
220
221 JNIEXPORT jobject JNICALL
222 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
223
224 /*
225 * java.lang.Compiler
226 */
227 JNIEXPORT void JNICALL
228 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
229
230 JNIEXPORT jboolean JNICALL
231 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
232
233 JNIEXPORT jboolean JNICALL
234 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
235
236 JNIEXPORT jboolean JNICALL
237 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
238
239 JNIEXPORT jobject JNICALL
240 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
241
242 JNIEXPORT void JNICALL
243 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
244
245 JNIEXPORT void JNICALL
246 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
247
248 /*
249 * java.lang.Thread
250 */
251 JNIEXPORT void JNICALL
252 JVM_StartThread(JNIEnv *env, jobject thread);
253
254 JNIEXPORT void JNICALL
255 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
256
257 JNIEXPORT jboolean JNICALL
258 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
259
260 JNIEXPORT void JNICALL
261 JVM_SuspendThread(JNIEnv *env, jobject thread);
262
263 JNIEXPORT void JNICALL
264 JVM_ResumeThread(JNIEnv *env, jobject thread);
265
266 JNIEXPORT void JNICALL
267 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
268
269 JNIEXPORT void JNICALL
270 JVM_Yield(JNIEnv *env, jclass threadClass);
271
272 JNIEXPORT void JNICALL
273 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
274
275 JNIEXPORT jobject JNICALL
276 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
277
278 JNIEXPORT jint JNICALL
279 JVM_CountStackFrames(JNIEnv *env, jobject thread);
280
281 JNIEXPORT void JNICALL
282 JVM_Interrupt(JNIEnv *env, jobject thread);
283
284 JNIEXPORT jboolean JNICALL
285 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
286
287 JNIEXPORT jboolean JNICALL
288 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
289
290 JNIEXPORT void JNICALL
291 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
292
293 JNIEXPORT jobjectArray JNICALL
294 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
295
296 JNIEXPORT void JNICALL
297 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
298
299 /* getStackTrace() and getAllStackTraces() method */
300 JNIEXPORT jobjectArray JNICALL
301 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
302
303 /*
304 * java.lang.SecurityManager
305 */
306 JNIEXPORT jclass JNICALL
307 JVM_CurrentLoadedClass(JNIEnv *env);
308
309 JNIEXPORT jobject JNICALL
310 JVM_CurrentClassLoader(JNIEnv *env);
311
312 JNIEXPORT jobjectArray JNICALL
313 JVM_GetClassContext(JNIEnv *env);
314
315 JNIEXPORT jint JNICALL
316 JVM_ClassDepth(JNIEnv *env, jstring name);
317
318 JNIEXPORT jint JNICALL
319 JVM_ClassLoaderDepth(JNIEnv *env);
320
321 /*
322 * java.lang.Package
323 */
324 JNIEXPORT jstring JNICALL
325 JVM_GetSystemPackage(JNIEnv *env, jstring name);
326
327 JNIEXPORT jobjectArray JNICALL
328 JVM_GetSystemPackages(JNIEnv *env);
329
330 /*
331 * java.io.ObjectInputStream
332 */
333 JNIEXPORT jobject JNICALL
334 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
335 jclass initClass);
336
337 JNIEXPORT jobject JNICALL
338 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
339 jint length);
340
341 JNIEXPORT jobject JNICALL
342 JVM_LatestUserDefinedLoader(JNIEnv *env);
343
344 /*
345 * This function has been deprecated and should not be considered
346 * part of the specified JVM interface.
347 */
348 JNIEXPORT jclass JNICALL
349 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
350 jstring currClassName);
351
352 /*
353 * java.lang.reflect.Array
354 */
355 JNIEXPORT jint JNICALL
356 JVM_GetArrayLength(JNIEnv *env, jobject arr);
357
358 JNIEXPORT jobject JNICALL
359 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
360
361 JNIEXPORT jvalue JNICALL
362 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
363
364 JNIEXPORT void JNICALL
365 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
366
367 JNIEXPORT void JNICALL
368 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
369 unsigned char vCode);
370
371 JNIEXPORT jobject JNICALL
372 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
373
374 JNIEXPORT jobject JNICALL
375 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
376
377 /*
378 * java.lang.Class and java.lang.ClassLoader
379 */
380
381 #define JVM_CALLER_DEPTH -1
382
383 /*
384 * Returns the class in which the code invoking the native method
385 * belongs.
386 *
387 * Note that in JDK 1.1, native methods did not create a frame.
388 * In 1.2, they do. Therefore native methods like Class.forName
389 * can no longer look at the current frame for the caller class.
390 */
391 JNIEXPORT jclass JNICALL
392 JVM_GetCallerClass(JNIEnv *env, int n);
393
394 /*
395 * Find primitive classes
396 * utf: class name
397 */
398 JNIEXPORT jclass JNICALL
399 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
400
401 /*
402 * Link the class
403 */
404 JNIEXPORT void JNICALL
405 JVM_ResolveClass(JNIEnv *env, jclass cls);
406
407 /*
408 * Find a class from a given class loader. Throw ClassNotFoundException
409 * or NoClassDefFoundError depending on the value of the last
410 * argument.
411 */
412 JNIEXPORT jclass JNICALL
413 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
414 jobject loader, jboolean throwError);
415
416 /*
417 * Find a class from a boot class loader. Returns NULL if class not found.
418 */
419 JNIEXPORT jclass JNICALL
420 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
421
422 /*
423 * Find a class from a given class.
424 */
425 JNIEXPORT jclass JNICALL
426 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
427 jclass from);
428
429 /* Find a loaded class cached by the VM */
430 JNIEXPORT jclass JNICALL
431 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
432
433 /* Define a class */
434 JNIEXPORT jclass JNICALL
435 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
436 jsize len, jobject pd);
437
438 /* Define a class with a source (added in JDK1.5) */
439 JNIEXPORT jclass JNICALL
440 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
441 const jbyte *buf, jsize len, jobject pd,
442 const char *source);
443
444 /* Define a class with a source with conditional verification (added HSX 14)
445 * -Xverify:all will verify anyway, -Xverify:none will not verify,
446 * -Xverify:remote (default) will obey this conditional
447 * i.e. true = should_verify_class
448 */
449 JNIEXPORT jclass JNICALL
450 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
451 jobject loader, const jbyte *buf,
452 jsize len, jobject pd, const char *source,
453 jboolean verify);
454
455 /*
456 * Reflection support functions
457 */
458
459 JNIEXPORT jstring JNICALL
460 JVM_GetClassName(JNIEnv *env, jclass cls);
461
462 JNIEXPORT jobjectArray JNICALL
463 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
464
465 JNIEXPORT jboolean JNICALL
466 JVM_IsInterface(JNIEnv *env, jclass cls);
467
468 JNIEXPORT jobjectArray JNICALL
469 JVM_GetClassSigners(JNIEnv *env, jclass cls);
470
471 JNIEXPORT void JNICALL
472 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
473
474 JNIEXPORT jobject JNICALL
475 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
476
477 JNIEXPORT jboolean JNICALL
478 JVM_IsArrayClass(JNIEnv *env, jclass cls);
479
480 JNIEXPORT jboolean JNICALL
481 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
482
483 JNIEXPORT jint JNICALL
484 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
485
486 JNIEXPORT jobjectArray JNICALL
487 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
488
489 JNIEXPORT jclass JNICALL
490 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
491
492 /* Generics support (JDK 1.5) */
493 JNIEXPORT jstring JNICALL
494 JVM_GetClassSignature(JNIEnv *env, jclass cls);
495
496 /* Annotations support (JDK 1.5) */
497 JNIEXPORT jbyteArray JNICALL
498 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
499
500 /* Annotations support (JDK 1.6) */
501
502 // field is a handle to a java.lang.reflect.Field object
503 JNIEXPORT jbyteArray JNICALL
504 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
505
506 // method is a handle to a java.lang.reflect.Method object
507 JNIEXPORT jbyteArray JNICALL
508 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
509
510 // method is a handle to a java.lang.reflect.Method object
511 JNIEXPORT jbyteArray JNICALL
512 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
513
514 // method is a handle to a java.lang.reflect.Method object
515 JNIEXPORT jbyteArray JNICALL
516 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
517
518 /* Type use annotations support (JDK 1.8) */
519
520 JNIEXPORT jbyteArray JNICALL
521 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
522
523 // field is a handle to a java.lang.reflect.Field object
524 JNIEXPORT jbyteArray JNICALL
525 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
526
527 // method is a handle to a java.lang.reflect.Method object
528 JNIEXPORT jbyteArray JNICALL
529 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
530
531 /*
532 * New (JDK 1.4) reflection implementation
533 */
534
535 JNIEXPORT jobjectArray JNICALL
536 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
537
538 JNIEXPORT jobjectArray JNICALL
539 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
540
541 JNIEXPORT jobjectArray JNICALL
542 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
543
544 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
545 This returns the access flags for the class as specified in the
546 class file rather than searching the InnerClasses attribute (if
547 present) to find the source-level access flags. Only the values of
548 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
549 valid. */
550 JNIEXPORT jint JNICALL
551 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
552
553 /*
554 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
555 */
556
557 JNIEXPORT jobject JNICALL
558 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
559
560 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
561 (JNIEnv *env, jobject obj, jobject unused);
562
563 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
564 (JNIEnv *env, jobject obj, jobject unused, jint index);
565
566 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
567 (JNIEnv *env, jobject obj, jobject unused, jint index);
568
569 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
570 (JNIEnv *env, jobject obj, jobject unused, jint index);
571
572 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
573 (JNIEnv *env, jobject obj, jobject unused, jint index);
574
575 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
576 (JNIEnv *env, jobject obj, jobject unused, jint index);
577
578 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
579 (JNIEnv *env, jobject obj, jobject unused, jint index);
580
581 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
582 (JNIEnv *env, jobject obj, jobject unused, jint index);
583
584 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
585 (JNIEnv *env, jobject obj, jobject unused, jint index);
586
587 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
588 (JNIEnv *env, jobject obj, jobject unused, jint index);
589
590 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
591 (JNIEnv *env, jobject obj, jobject unused, jint index);
592
593 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
594 (JNIEnv *env, jobject obj, jobject unused, jint index);
595
596 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
597 (JNIEnv *env, jobject obj, jobject unused, jint index);
598
599 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
600 (JNIEnv *env, jobject obj, jobject unused, jint index);
601
602 /*
603 * java.security.*
604 */
605
606 JNIEXPORT jobject JNICALL
607 JVM_DoPrivileged(JNIEnv *env, jclass cls,
608 jobject action, jobject context, jboolean wrapException);
609
610 JNIEXPORT jobject JNICALL
611 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
612
613 JNIEXPORT jobject JNICALL
614 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
615
616 /*
617 * Signal support, used to implement the shutdown sequence. Every VM must
618 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
619 * (^C) and the latter for external termination (kill, system shutdown, etc.).
620 * Other platform-dependent signal values may also be supported.
621 */
622
623 JNIEXPORT void * JNICALL
624 JVM_RegisterSignal(jint sig, void *handler);
625
626 JNIEXPORT jboolean JNICALL
627 JVM_RaiseSignal(jint sig);
628
629 JNIEXPORT jint JNICALL
630 JVM_FindSignal(const char *name);
631
632 /*
633 * Retrieve the assertion directives for the specified class.
634 */
635 JNIEXPORT jboolean JNICALL
636 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
637
638 /*
639 * Retrieve the assertion directives from the VM.
640 */
641 JNIEXPORT jobject JNICALL
642 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
643
644 /*
645 * java.util.concurrent.atomic.AtomicLong
646 */
647 JNIEXPORT jboolean JNICALL
648 JVM_SupportsCX8(void);
649
650 JNIEXPORT jboolean JNICALL
651 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
652
653 /*
654 * com.sun.dtrace.jsdt support
655 */
656
657 #define JVM_TRACING_DTRACE_VERSION 1
658
659 /*
660 * Structure to pass one probe description to JVM.
661 *
662 * The VM will overwrite the definition of the referenced method with
663 * code that will fire the probe.
664 */
665 typedef struct {
666 jmethodID method;
667 jstring function;
668 jstring name;
669 void* reserved[4]; // for future use
670 } JVM_DTraceProbe;
671
672 /**
673 * Encapsulates the stability ratings for a DTrace provider field
674 */
675 typedef struct {
676 jint nameStability;
677 jint dataStability;
678 jint dependencyClass;
679 } JVM_DTraceInterfaceAttributes;
680
681 /*
682 * Structure to pass one provider description to JVM
683 */
684 typedef struct {
685 jstring name;
686 JVM_DTraceProbe* probes;
687 jint probe_count;
688 JVM_DTraceInterfaceAttributes providerAttributes;
689 JVM_DTraceInterfaceAttributes moduleAttributes;
690 JVM_DTraceInterfaceAttributes functionAttributes;
691 JVM_DTraceInterfaceAttributes nameAttributes;
692 JVM_DTraceInterfaceAttributes argsAttributes;
693 void* reserved[4]; // for future use
694 } JVM_DTraceProvider;
695
696 /*
697 * Get the version number the JVM was built with
698 */
699 JNIEXPORT jint JNICALL
700 JVM_DTraceGetVersion(JNIEnv* env);
701
702 /*
703 * Register new probe with given signature, return global handle
704 *
705 * The version passed in is the version that the library code was
706 * built with.
707 */
708 JNIEXPORT jlong JNICALL
709 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
710 jint providers_count, JVM_DTraceProvider* providers);
711
712 /*
713 * Check JSDT probe
714 */
715 JNIEXPORT jboolean JNICALL
716 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
717
718 /*
719 * Destroy custom DOF
720 */
721 JNIEXPORT void JNICALL
722 JVM_DTraceDispose(JNIEnv* env, jlong handle);
723
724 /*
725 * Check to see if DTrace is supported by OS
726 */
727 JNIEXPORT jboolean JNICALL
728 JVM_DTraceIsSupported(JNIEnv* env);
729
730 /*************************************************************************
731 PART 2: Support for the Verifier and Class File Format Checker
732 ************************************************************************/
733 /*
734 * Return the class name in UTF format. The result is valid
735 * until JVM_ReleaseUTf is called.
736 *
737 * The caller must treat the string as a constant and not modify it
738 * in any way.
739 */
740 JNIEXPORT const char * JNICALL
741 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
742
743 /*
744 * Returns the constant pool types in the buffer provided by "types."
745 */
746 JNIEXPORT void JNICALL
747 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
748
749 /*
750 * Returns the number of Constant Pool entries.
751 */
752 JNIEXPORT jint JNICALL
753 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
754
755 /*
756 * Returns the number of *declared* fields or methods.
757 */
758 JNIEXPORT jint JNICALL
759 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
760
761 JNIEXPORT jint JNICALL
762 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
763
764 /*
765 * Returns the CP indexes of exceptions raised by a given method.
766 * Places the result in the given buffer.
767 *
768 * The method is identified by method_index.
769 */
770 JNIEXPORT void JNICALL
771 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
772 unsigned short *exceptions);
773 /*
774 * Returns the number of exceptions raised by a given method.
775 * The method is identified by method_index.
776 */
777 JNIEXPORT jint JNICALL
778 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
779
780 /*
781 * Returns the byte code sequence of a given method.
782 * Places the result in the given buffer.
783 *
784 * The method is identified by method_index.
785 */
786 JNIEXPORT void JNICALL
787 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
788 unsigned char *code);
789
790 /*
791 * Returns the length of the byte code sequence of a given method.
792 * The method is identified by method_index.
793 */
794 JNIEXPORT jint JNICALL
795 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
796
797 /*
798 * A structure used to a capture exception table entry in a Java method.
799 */
800 typedef struct {
801 jint start_pc;
802 jint end_pc;
803 jint handler_pc;
804 jint catchType;
805 } JVM_ExceptionTableEntryType;
806
807 /*
808 * Returns the exception table entry at entry_index of a given method.
809 * Places the result in the given buffer.
810 *
811 * The method is identified by method_index.
812 */
813 JNIEXPORT void JNICALL
814 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
815 jint entry_index,
816 JVM_ExceptionTableEntryType *entry);
817
818 /*
819 * Returns the length of the exception table of a given method.
820 * The method is identified by method_index.
821 */
822 JNIEXPORT jint JNICALL
823 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
824
825 /*
826 * Returns the modifiers of a given field.
827 * The field is identified by field_index.
828 */
829 JNIEXPORT jint JNICALL
830 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
831
832 /*
833 * Returns the modifiers of a given method.
834 * The method is identified by method_index.
835 */
836 JNIEXPORT jint JNICALL
837 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
838
839 /*
840 * Returns the number of local variables of a given method.
841 * The method is identified by method_index.
842 */
843 JNIEXPORT jint JNICALL
844 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
845
846 /*
847 * Returns the number of arguments (including this pointer) of a given method.
848 * The method is identified by method_index.
849 */
850 JNIEXPORT jint JNICALL
851 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
852
853 /*
854 * Returns the maximum amount of stack (in words) used by a given method.
855 * The method is identified by method_index.
856 */
857 JNIEXPORT jint JNICALL
858 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
859
860 /*
861 * Is a given method a constructor.
862 * The method is identified by method_index.
863 */
864 JNIEXPORT jboolean JNICALL
865 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
866
867 /*
868 * Is the given method generated by the VM.
869 * The method is identified by method_index.
870 */
871 JNIEXPORT jboolean JNICALL
872 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
873
874 /*
875 * Returns the name of a given method in UTF format.
876 * The result remains valid until JVM_ReleaseUTF is called.
877 *
878 * The caller must treat the string as a constant and not modify it
879 * in any way.
880 */
881 JNIEXPORT const char * JNICALL
882 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
883
884 /*
885 * Returns the signature of a given method in UTF format.
886 * The result remains valid until JVM_ReleaseUTF 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_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
893
894 /*
895 * Returns the name of the field refered 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_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
906
907 /*
908 * Returns the name of the method refered 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_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
919
920 /*
921 * Returns the signature of the method refered to at a given constant pool
922 * index.
923 *
924 * The result is in UTF format and remains valid until JVM_ReleaseUTF
925 * is called.
926 *
927 * The caller must treat the string as a constant and not modify it
928 * in any way.
929 */
930 JNIEXPORT const char * JNICALL
931 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
932
933 /*
934 * Returns the signature of the field refered to at a given constant pool
935 * index.
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_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
945
946 /*
947 * Returns the class name refered to at a given constant pool index.
948 *
949 * The result is in UTF format and remains valid until JVM_ReleaseUTF
950 * is called.
951 *
952 * The caller must treat the string as a constant and not modify it
953 * in any way.
954 */
955 JNIEXPORT const char * JNICALL
956 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
957
958 /*
959 * Returns the class name refered to at a given constant pool index.
960 *
961 * The constant pool entry must refer to a CONSTANT_Fieldref.
962 *
963 * The result is in UTF format and remains valid until JVM_ReleaseUTF
964 * is called.
965 *
966 * The caller must treat the string as a constant and not modify it
967 * in any way.
968 */
969 JNIEXPORT const char * JNICALL
970 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
971
972 /*
973 * Returns the class name refered to at a given constant pool index.
974 *
975 * The constant pool entry must refer to CONSTANT_Methodref or
976 * CONSTANT_InterfaceMethodref.
977 *
978 * The result is in UTF format and remains valid until JVM_ReleaseUTF
979 * is called.
980 *
981 * The caller must treat the string as a constant and not modify it
982 * in any way.
983 */
984 JNIEXPORT const char * JNICALL
985 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
986
987 /*
988 * Returns the modifiers of a field in calledClass. The field is
989 * referred to in class cb at constant pool entry index.
990 *
991 * The caller must treat the string as a constant and not modify it
992 * in any way.
993 *
994 * Returns -1 if the field does not exist in calledClass.
995 */
996 JNIEXPORT jint JNICALL
997 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
998
999 /*
1000 * Returns the modifiers of a method in calledClass. The method is
1001 * referred to in class cb at constant pool entry index.
1002 *
1003 * Returns -1 if the method does not exist in calledClass.
1004 */
1005 JNIEXPORT jint JNICALL
1006 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1007
1008 /*
1009 * Releases the UTF string obtained from the VM.
1010 */
1011 JNIEXPORT void JNICALL
1012 JVM_ReleaseUTF(const char *utf);
1013
1014 /*
1015 * Compare if two classes are in the same package.
1016 */
1017 JNIEXPORT jboolean JNICALL
1018 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1019
1020 /* Constants in class files */
1021
1022 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
1023 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
1024 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
1025 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
1026 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
1027 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
1028 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
1029 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
1030 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
1031 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1032 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1033 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1034 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1035 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1036 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1037 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1038 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1039 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1040
1041 #define JVM_ACC_PUBLIC_BIT 0
1042 #define JVM_ACC_PRIVATE_BIT 1
1043 #define JVM_ACC_PROTECTED_BIT 2
1044 #define JVM_ACC_STATIC_BIT 3
1045 #define JVM_ACC_FINAL_BIT 4
1046 #define JVM_ACC_SYNCHRONIZED_BIT 5
1047 #define JVM_ACC_SUPER_BIT 5
1048 #define JVM_ACC_VOLATILE_BIT 6
1049 #define JVM_ACC_BRIDGE_BIT 6
1050 #define JVM_ACC_TRANSIENT_BIT 7
1051 #define JVM_ACC_VARARGS_BIT 7
1052 #define JVM_ACC_NATIVE_BIT 8
1053 #define JVM_ACC_INTERFACE_BIT 9
1054 #define JVM_ACC_ABSTRACT_BIT 10
1055 #define JVM_ACC_STRICT_BIT 11
1056 #define JVM_ACC_SYNTHETIC_BIT 12
1057 #define JVM_ACC_ANNOTATION_BIT 13
1058 #define JVM_ACC_ENUM_BIT 14
1059
1060 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1061 enum {
1062 JVM_CONSTANT_Utf8 = 1,
1063 JVM_CONSTANT_Unicode, /* unused */
1064 JVM_CONSTANT_Integer,
1065 JVM_CONSTANT_Float,
1066 JVM_CONSTANT_Long,
1067 JVM_CONSTANT_Double,
1068 JVM_CONSTANT_Class,
1069 JVM_CONSTANT_String,
1070 JVM_CONSTANT_Fieldref,
1071 JVM_CONSTANT_Methodref,
1072 JVM_CONSTANT_InterfaceMethodref,
1073 JVM_CONSTANT_NameAndType,
1074 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1075 JVM_CONSTANT_MethodType = 16, // JSR 292
1076 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1077 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1078 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
1079 };
1080
1081 /* JVM_CONSTANT_MethodHandle subtypes */
1082 enum {
1083 JVM_REF_getField = 1,
1084 JVM_REF_getStatic = 2,
1085 JVM_REF_putField = 3,
1086 JVM_REF_putStatic = 4,
1087 JVM_REF_invokeVirtual = 5,
1088 JVM_REF_invokeStatic = 6,
1089 JVM_REF_invokeSpecial = 7,
1090 JVM_REF_newInvokeSpecial = 8,
1091 JVM_REF_invokeInterface = 9
1092 };
1093
1094 /* Used in the newarray instruction. */
1095
1096 #define JVM_T_BOOLEAN 4
1097 #define JVM_T_CHAR 5
1098 #define JVM_T_FLOAT 6
1099 #define JVM_T_DOUBLE 7
1100 #define JVM_T_BYTE 8
1101 #define JVM_T_SHORT 9
1102 #define JVM_T_INT 10
1103 #define JVM_T_LONG 11
1104
1105 /* JVM method signatures */
1106
1107 #define JVM_SIGNATURE_ARRAY '['
1108 #define JVM_SIGNATURE_BYTE 'B'
1109 #define JVM_SIGNATURE_CHAR 'C'
1110 #define JVM_SIGNATURE_CLASS 'L'
1111 #define JVM_SIGNATURE_ENDCLASS ';'
1112 #define JVM_SIGNATURE_ENUM 'E'
1113 #define JVM_SIGNATURE_FLOAT 'F'
1114 #define JVM_SIGNATURE_DOUBLE 'D'
1115 #define JVM_SIGNATURE_FUNC '('
1116 #define JVM_SIGNATURE_ENDFUNC ')'
1117 #define JVM_SIGNATURE_INT 'I'
1118 #define JVM_SIGNATURE_LONG 'J'
1119 #define JVM_SIGNATURE_SHORT 'S'
1120 #define JVM_SIGNATURE_VOID 'V'
1121 #define JVM_SIGNATURE_BOOLEAN 'Z'
1122
1123 /*
1124 * A function defined by the byte-code verifier and called by the VM.
1125 * This is not a function implemented in the VM.
1126 *
1127 * Returns JNI_FALSE if verification fails. A detailed error message
1128 * will be places in msg_buf, whose length is specified by buf_len.
1129 */
1130 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1131 jclass cb,
1132 char * msg_buf,
1133 jint buf_len);
1134
1135
1136 /*
1137 * Support for a VM-independent class format checker.
1138 */
1139 typedef struct {
1140 unsigned long code; /* byte code */
1141 unsigned long excs; /* exceptions */
1142 unsigned long etab; /* catch table */
1143 unsigned long lnum; /* line number */
1144 unsigned long lvar; /* local vars */
1145 } method_size_info;
1146
1147 typedef struct {
1148 unsigned int constants; /* constant pool */
1149 unsigned int fields;
1150 unsigned int methods;
1151 unsigned int interfaces;
1152 unsigned int fields2; /* number of static 2-word fields */
1153 unsigned int innerclasses; /* # of records in InnerClasses attr */
1154
1155 method_size_info clinit; /* memory used in clinit */
1156 method_size_info main; /* used everywhere else */
1157 } class_size_info;
1158
1159 /*
1160 * Functions defined in libjava.so to perform string conversions.
1161 *
1162 */
1163
1164 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1165
1166 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1167
1168 /* This is the function defined in libjava.so that performs class
1169 * format checks. This functions fills in size information about
1170 * the class file and returns:
1171 *
1172 * 0: good
1173 * -1: out of memory
1174 * -2: bad format
1175 * -3: unsupported version
1176 * -4: bad class name
1177 */
1178
1179 typedef jint (*check_format_fn_t)(char *class_name,
1180 unsigned char *data,
1181 unsigned int data_size,
1182 class_size_info *class_size,
1183 char *message_buffer,
1184 jint buffer_length,
1185 jboolean measure_only,
1186 jboolean check_relaxed);
1187
1188 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1189 JVM_ACC_FINAL | \
1190 JVM_ACC_SUPER | \
1191 JVM_ACC_INTERFACE | \
1192 JVM_ACC_ABSTRACT | \
1193 JVM_ACC_ANNOTATION | \
1194 JVM_ACC_ENUM | \
1195 JVM_ACC_SYNTHETIC)
1196
1197 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1198 JVM_ACC_PRIVATE | \
1199 JVM_ACC_PROTECTED | \
1200 JVM_ACC_STATIC | \
1201 JVM_ACC_FINAL | \
1202 JVM_ACC_VOLATILE | \
1203 JVM_ACC_TRANSIENT | \
1204 JVM_ACC_ENUM | \
1205 JVM_ACC_SYNTHETIC)
1206
1207 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1208 JVM_ACC_PRIVATE | \
1209 JVM_ACC_PROTECTED | \
1210 JVM_ACC_STATIC | \
1211 JVM_ACC_FINAL | \
1212 JVM_ACC_SYNCHRONIZED | \
1213 JVM_ACC_BRIDGE | \
1214 JVM_ACC_VARARGS | \
1215 JVM_ACC_NATIVE | \
1216 JVM_ACC_ABSTRACT | \
1217 JVM_ACC_STRICT | \
1218 JVM_ACC_SYNTHETIC)
1219
1220 /*
1221 * This is the function defined in libjava.so to perform path
1222 * canonicalization. VM call this function before opening jar files
1223 * to load system classes.
1224 *
1225 */
1226
1227 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1228
1229 /*************************************************************************
1230 PART 3: I/O and Network Support
1231 ************************************************************************/
1232
1233 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1234 * when there is any kind of error. The caller can then use the
1235 * platform specific support (e.g., errno) to get the detailed
1236 * error info. The JVM_GetLastErrorString procedure may also be used
1237 * to obtain a descriptive error string.
1238 */
1239 #define JVM_IO_ERR (-1)
1240
1241 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1242 * operation has been disrupted by Thread.interrupt. There are a
1243 * number of technical difficulties related to interruptible IO that
1244 * need to be solved. For example, most existing programs do not handle
1245 * InterruptedIOExceptions specially, they simply treat those as any
1246 * IOExceptions, which typically indicate fatal errors.
1247 *
1248 * There are also two modes of operation for interruptible IO. In the
1249 * resumption mode, an interrupted IO operation is guaranteed not to
1250 * have any side-effects, and can be restarted. In the termination mode,
1251 * an interrupted IO operation corrupts the underlying IO stream, so
1252 * that the only reasonable operation on an interrupted stream is to
1253 * close that stream. The resumption mode seems to be impossible to
1254 * implement on Win32 and Solaris. Implementing the termination mode is
1255 * easier, but it's not clear that's the right semantics.
1256 *
1257 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1258 * using a compile-time flag on Solaris. Third-party JVM ports do not
1259 * need to implement interruptible IO.
1260 */
1261 #define JVM_IO_INTR (-2)
1262
1263 /* Write a string into the given buffer, in the platform's local encoding,
1264 * that describes the most recent system-level error to occur in this thread.
1265 * Return the length of the string or zero if no error occurred.
1266 */
1267 JNIEXPORT jint JNICALL
1268 JVM_GetLastErrorString(char *buf, int len);
1269
1270 /*
1271 * Convert a pathname into native format. This function does syntactic
1272 * cleanup, such as removing redundant separator characters. It modifies
1273 * the given pathname string in place.
1274 */
1275 JNIEXPORT char * JNICALL
1276 JVM_NativePath(char *);
1277
1278 /*
1279 * JVM I/O error codes
1280 */
1281 #define JVM_EEXIST -100
1282
1283 /*
1284 * Open a file descriptor. This function returns a negative error code
1285 * on error, and a non-negative integer that is the file descriptor on
1286 * success.
1287 */
1288 JNIEXPORT jint JNICALL
1289 JVM_Open(const char *fname, jint flags, jint mode);
1290
1291 /*
1292 * Close a file descriptor. This function returns -1 on error, and 0
1293 * on success.
1294 *
1295 * fd the file descriptor to close.
1296 */
1297 JNIEXPORT jint JNICALL
1298 JVM_Close(jint fd);
1299
1300 /*
1301 * Read data from a file decriptor into a char array.
1302 *
1303 * fd the file descriptor to read from.
1304 * buf the buffer where to put the read data.
1305 * nbytes the number of bytes to read.
1306 *
1307 * This function returns -1 on error, and 0 on success.
1308 */
1309 JNIEXPORT jint JNICALL
1310 JVM_Read(jint fd, char *buf, jint nbytes);
1311
1312 /*
1313 * Write data from a char array to a file decriptor.
1314 *
1315 * fd the file descriptor to read from.
1316 * buf the buffer from which to fetch the data.
1317 * nbytes the number of bytes to write.
1318 *
1319 * This function returns -1 on error, and 0 on success.
1320 */
1321 JNIEXPORT jint JNICALL
1322 JVM_Write(jint fd, char *buf, jint nbytes);
1323
1324 /*
1325 * Returns the number of bytes available for reading from a given file
1326 * descriptor
1327 */
1328 JNIEXPORT jint JNICALL
1329 JVM_Available(jint fd, jlong *pbytes);
1330
1331 /*
1332 * Move the file descriptor pointer from whence by offset.
1333 *
1334 * fd the file descriptor to move.
1335 * offset the number of bytes to move it by.
1336 * whence the start from where to move it.
1337 *
1338 * This function returns the resulting pointer location.
1339 */
1340 JNIEXPORT jlong JNICALL
1341 JVM_Lseek(jint fd, jlong offset, jint whence);
1342
1343 /*
1344 * Set the length of the file associated with the given descriptor to the given
1345 * length. If the new length is longer than the current length then the file
1346 * is extended; the contents of the extended portion are not defined. The
1347 * value of the file pointer is undefined after this procedure returns.
1348 */
1349 JNIEXPORT jint JNICALL
1350 JVM_SetLength(jint fd, jlong length);
1351
1352 /*
1353 * Synchronize the file descriptor's in memory state with that of the
1354 * physical device. Return of -1 is an error, 0 is OK.
1355 */
1356 JNIEXPORT jint JNICALL
1357 JVM_Sync(jint fd);
1358
1359 /*
1360 * Networking library support
1361 */
1362
1363 JNIEXPORT jint JNICALL
1364 JVM_InitializeSocketLibrary(void);
1365
1366 struct sockaddr;
1367
1368 JNIEXPORT jint JNICALL
1369 JVM_Socket(jint domain, jint type, jint protocol);
1370
1371 JNIEXPORT jint JNICALL
1372 JVM_SocketClose(jint fd);
1373
1374 JNIEXPORT jint JNICALL
1375 JVM_SocketShutdown(jint fd, jint howto);
1376
1377 JNIEXPORT jint JNICALL
1378 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1379
1380 JNIEXPORT jint JNICALL
1381 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1382
1383 JNIEXPORT jint JNICALL
1384 JVM_Timeout(int fd, long timeout);
1385
1386 JNIEXPORT jint JNICALL
1387 JVM_Listen(jint fd, jint count);
1388
1389 JNIEXPORT jint JNICALL
1390 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1391
1392 JNIEXPORT jint JNICALL
1393 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1394
1395 JNIEXPORT jint JNICALL
1396 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1397
1398 JNIEXPORT jint JNICALL
1399 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1400 int flags, struct sockaddr *from, int *fromlen);
1401
1402 JNIEXPORT jint JNICALL
1403 JVM_SendTo(jint fd, char *buf, int len,
1404 int flags, struct sockaddr *to, int tolen);
1405
1406 JNIEXPORT jint JNICALL
1407 JVM_SocketAvailable(jint fd, jint *result);
1408
1409
1410 JNIEXPORT jint JNICALL
1411 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1412
1413 JNIEXPORT jint JNICALL
1414 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1415
1416 JNIEXPORT jint JNICALL
1417 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1418
1419 JNIEXPORT int JNICALL
1420 JVM_GetHostName(char* name, int namelen);
1421
1422 /*
1423 * The standard printing functions supported by the Java VM. (Should they
1424 * be renamed to JVM_* in the future?
1425 */
1426
1427 /*
1428 * BE CAREFUL! The following functions do not implement the
1429 * full feature set of standard C printf formats.
1430 */
1431 JNIEXPORT int
1432 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1433
1434 JNIEXPORT int
1435 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1436
1437 JNIEXPORT int
1438 jio_fprintf(FILE *, const char *fmt, ...);
1439
1440 JNIEXPORT int
1441 jio_vfprintf(FILE *, const char *fmt, va_list args);
1442
1443
1444 JNIEXPORT void * JNICALL
1445 JVM_RawMonitorCreate(void);
1446
1447 JNIEXPORT void JNICALL
1448 JVM_RawMonitorDestroy(void *mon);
1449
1450 JNIEXPORT jint JNICALL
1451 JVM_RawMonitorEnter(void *mon);
1452
1453 JNIEXPORT void JNICALL
1454 JVM_RawMonitorExit(void *mon);
1455
1456 /*
1457 * java.lang.reflect.Method
1458 */
1459 JNIEXPORT jobject JNICALL
1460 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1461
1462 /*
1463 * java.lang.reflect.Constructor
1464 */
1465 JNIEXPORT jobject JNICALL
1466 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1467
1468 /*
1469 * java.lang.management support
1470 */
1471 JNIEXPORT void* JNICALL
1472 JVM_GetManagement(jint version);
1473
1474 /*
1475 * com.sun.tools.attach.VirtualMachine support
1476 *
1477 * Initialize the agent properties with the properties maintained in the VM.
1478 */
1479 JNIEXPORT jobject JNICALL
1480 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1481
1482 JNIEXPORT jstring JNICALL
1483 JVM_GetTemporaryDirectory(JNIEnv *env);
1484
1485 /* Generics reflection support.
1486 *
1487 * Returns information about the given class's EnclosingMethod
1488 * attribute, if present, or null if the class had no enclosing
1489 * method.
1490 *
1491 * If non-null, the returned array contains three elements. Element 0
1492 * is the java.lang.Class of which the enclosing method is a member,
1493 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1494 * method's name and descriptor, respectively.
1495 */
1496 JNIEXPORT jobjectArray JNICALL
1497 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1498
1499 /*
1500 * Java thread state support
1501 */
1502 enum {
1503 JAVA_THREAD_STATE_NEW = 0,
1504 JAVA_THREAD_STATE_RUNNABLE = 1,
1505 JAVA_THREAD_STATE_BLOCKED = 2,
1506 JAVA_THREAD_STATE_WAITING = 3,
1507 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1508 JAVA_THREAD_STATE_TERMINATED = 5,
1509 JAVA_THREAD_STATE_COUNT = 6
1510 };
1511
1512 /*
1513 * Returns an array of the threadStatus values representing the
1514 * given Java thread state. Returns NULL if the VM version is
1515 * incompatible with the JDK or doesn't support the given
1516 * Java thread state.
1517 */
1518 JNIEXPORT jintArray JNICALL
1519 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1520
1521 /*
1522 * Returns an array of the substate names representing the
1523 * given Java thread state. Returns NULL if the VM version is
1524 * incompatible with the JDK or the VM doesn't support
1525 * the given Java thread state.
1526 * values must be the jintArray returned from JVM_GetThreadStateValues
1527 * and javaThreadState.
1528 */
1529 JNIEXPORT jobjectArray JNICALL
1530 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1531
1532 /* =========================================================================
1533 * The following defines a private JVM interface that the JDK can query
1534 * for the JVM version and capabilities. sun.misc.Version defines
1535 * the methods for getting the VM version and its capabilities.
1536 *
1537 * When a new bit is added, the following should be updated to provide
1538 * access to the new capability:
1539 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1540 * SDK: Version class
1541 *
1542 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1543 * JVM to query for the JDK version and capabilities.
1544 *
1545 * When a new bit is added, the following should be updated to provide
1546 * access to the new capability:
1547 * HS: JDK_Version class
1548 * SDK: JDK_GetVersionInfo0
1549 *
1550 * ==========================================================================
1551 */
1552 typedef struct {
1553 /* VM version string: follows the JDK release version naming convention */
1554 unsigned int jvm_version; /* <major_ver>.<minor_ver>.<micro_ver>[-<identifier>][-<debug_target>][-b<nn>] */
1555 unsigned int update_version : 8;
1556 unsigned int special_update_version : 8;
1557 unsigned int reserved1 : 16;
1558 unsigned int reserved2;
1559
1560 /* The following bits represents JVM supports that JDK has dependency on.
1561 * JDK can use these bits to determine which JVM version
1562 * and support it has to maintain runtime compatibility.
1563 *
1564 * When a new bit is added in a minor or update release, make sure
1565 * the new bit is also added in the main/baseline.
1566 */
1567 unsigned int is_attachable : 1;
1568 unsigned int : 31;
1569 unsigned int : 32;
1570 unsigned int : 32;
1571 } jvm_version_info;
1572
1573 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1574 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1575 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1576 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1577
1578 JNIEXPORT void JNICALL
1579 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1580
1581 typedef struct {
1582 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1583 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1584 /* and build number (xx) */
1585 unsigned int update_version : 8; /* Update release version (uu) */
1586 unsigned int special_update_version : 8; /* Special update release version (c)*/
1587 unsigned int reserved1 : 16;
1588 unsigned int reserved2;
1589
1590 /* The following bits represents new JDK supports that VM has dependency on.
1591 * VM implementation can use these bits to determine which JDK version
1592 * and support it has to maintain runtime compatibility.
1593 *
1594 * When a new bit is added in a minor or update release, make sure
1595 * the new bit is also added in the main/baseline.
1596 */
1597 unsigned int thread_park_blocker : 1;
1598 unsigned int post_vm_init_hook_enabled : 1;
1599 unsigned int pending_list_uses_discovered_field : 1;
1600 unsigned int : 29;
1601 unsigned int : 32;
1602 unsigned int : 32;
1603 } jdk_version_info;
1604
1605 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1606 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1607 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1608
1609 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1610 * It will be zero for internal builds.
1611 */
1612 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1613
1614 /*
1615 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1616 * that is dynamically looked up by JVM.
1617 */
1618 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1619
1620 /*
1621 * This structure is used by the launcher to get the default thread
1622 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1623 * version of 1.1. As it is not supported otherwise, it has been removed
1624 * from jni.h
1625 */
1626 typedef struct JDK1_1InitArgs {
1627 jint version;
1628
1629 char **properties;
1630 jint checkSource;
1631 jint nativeStackSize;
1632 jint javaStackSize;
1633 jint minHeapSize;
1634 jint maxHeapSize;
1635 jint verifyMode;
1636 char *classpath;
1637
1638 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1639 void (JNICALL *exit)(jint code);
1640 void (JNICALL *abort)(void);
1641
1642 jint enableClassGC;
1643 jint enableVerboseGC;
1644 jint disableAsyncGC;
1645 jint verbose;
1646 jboolean debugging;
1647 jint debugPort;
1648 } JDK1_1InitArgs;
1649
1650 #ifdef __cplusplus
1651 } /* extern "C" */
1652 #endif /* __cplusplus */
1653
1654 #endif /* !_JAVASOFT_JVM_H_ */
1655
1656 #endif // SHARE_VM_PRIMS_JVM_H